WO2018147492A1 - Hydraulic breaker, buffer fluid monitoring system and buffer fluid monitoring method - Google Patents

Hydraulic breaker, buffer fluid monitoring system and buffer fluid monitoring method Download PDF

Info

Publication number
WO2018147492A1
WO2018147492A1 PCT/KR2017/001777 KR2017001777W WO2018147492A1 WO 2018147492 A1 WO2018147492 A1 WO 2018147492A1 KR 2017001777 W KR2017001777 W KR 2017001777W WO 2018147492 A1 WO2018147492 A1 WO 2018147492A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
piston
buffer
buffer fluid
hydraulic
Prior art date
Application number
PCT/KR2017/001777
Other languages
French (fr)
Korean (ko)
Inventor
이원해
주진무
Original Assignee
대모 엔지니어링 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 대모 엔지니어링 주식회사 filed Critical 대모 엔지니어링 주식회사
Publication of WO2018147492A1 publication Critical patent/WO2018147492A1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/305—Arrangements for breaking-up hard ground
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/24—Safety devices, e.g. for preventing overload
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E02F9/267—Diagnosing or detecting failure of vehicles

Definitions

  • the present invention relates to a hydraulic breaker, a buffer fluid monitoring system and a buffer fluid monitoring method, and more particularly to a hydraulic breaker, a buffer fluid monitoring system and a buffer fluid monitoring method for monitoring the leakage of the buffer fluid buffering the movement of the piston. will be.
  • a breaker is a device used to crush a rock by hitting a chisel in contact with an object through a reciprocating motion of a piston, and a hydraulic attachment form that is mounted on a heavy equipment vehicle such as an excavator is mainly used in a large construction site. .
  • the conventional breaker has a long stroke mode that increases the stroke distance of the piston so that the impact force is strengthened for hard rock crushing according to the operator's operation, and the shot speed is improved even when sacrificing some impact force for soft rock crushing. It is configured to change the short stroke mode.
  • the breaker is provided with a buffer using a buffer fluid to buffer the movement of the piston reciprocating on the cylinder.
  • Buffer fluid is leaking due to scratches and cracks generated in the piston or cylinder.
  • the present invention is to solve the above problems, it detects the leakage of the buffer fluid, hydraulic breaker, buffer fluid monitoring system to inform the user or control the movement of the piston according to a predetermined condition when the buffer fluid leaks And buffer fluid monitoring methods.
  • a cylinder having a plurality of hydraulic ports, a piston reciprocating in the cylinder by the hydraulic pressure of the hydraulic fluid introduced or discharged through the hydraulic port, the movement of the piston using a buffer fluid
  • a buffer for buffering a pressure sensor for detecting pressure information on the buffer when the piston is moved on the buffer, and a check whether the buffer fluid leaks from the buffer based on the detected pressure information, and the buffer fluid leaks. If it is determined that the hydraulic breaker including a transmission module for outputting the pressure information to the controller for performing a warning operation may be provided.
  • a buffer fluid monitoring system for monitoring a buffer fluid leakage of a hydraulic breaker having a buffer buffer which is installed on the inner surface of the buffer part, and detects pressure information on the buffer part when the piston is moved on the buffer part.
  • a buffer fluid monitoring system including a controller for determining that a leak of the buffer fluid has occurred and performing a warning operation may be provided.
  • the chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder, the pressure sensor provided on the inner surface of the buffer for buffering the movement of the piston using a buffer fluid is the piston Detecting pressure information on the buffer unit when moving on the buffer unit, and determining that leakage of the buffer fluid has occurred and performing a warning operation when a controller satisfies a predetermined condition based on the detected pressure information.
  • a buffer fluid monitoring method may be provided.
  • the buffer fluid monitoring system and the buffer fluid monitoring method according to an embodiment of the present invention, to detect the leakage of the buffer fluid, if the buffer fluid leaks to inform the user according to a predetermined condition or the piston By controlling the movement of the breaker can be prevented.
  • FIG. 1 is a schematic diagram of construction equipment including a hydraulic breaker according to an embodiment of the present invention.
  • FIG. 2 is a schematic view of a hydraulic breaker according to an embodiment of the present invention.
  • FIG. 3 is an exploded perspective view of a hydraulic breaker according to an embodiment of the present invention.
  • FIG. 4 is a circuit diagram of a hydraulic breaker according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing an installation position of a pressure sensor according to an embodiment of the present invention.
  • FIG. 6 and 7 illustrate characteristics of pressure information detected by a pressure sensor according to an exemplary embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a buffer fluid monitoring system according to an embodiment of the present invention.
  • a cylinder having a plurality of hydraulic ports; A piston reciprocating in the cylinder by the hydraulic pressure of the hydraulic oil flowing in or out through the hydraulic port; A buffer for buffering the movement of the piston using a buffer fluid; A pressure sensor for sensing pressure information on the buffer when the piston is moved on the buffer; And a transmission module for determining whether the buffer fluid is leaked based on the detected pressure information, and outputting the pressure information to a controller that performs a warning operation when it is determined that the buffer fluid is leaked.
  • the pressure sensor and the transmission module may be provided on the inner surface of the shock absorbing portion is provided with a hydraulic breaker which is disconnected from the outside of the shock absorbing portion.
  • the hydraulic breaker may further include a position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston moving on the shock absorber.
  • the hydraulic breaker may be provided further comprising: a power charging unit which is installed on the inner surface of the buffer unit, the power charging unit can be wirelessly charged to supply power to the pressure sensor, the transmission module or the position sensor.
  • the movement of the piston using a cylinder having a plurality of hydraulic ports, the piston and the buffer fluid reciprocating in the cylinder by the hydraulic pressure of the hydraulic fluid flowing in or out through the hydraulic port A buffer fluid monitoring system for monitoring a buffer fluid leak of a hydraulic breaker having a shock absorber for cushioning the pressure, which is installed on the inner surface of the shock absorber and pressure information on the shock absorber when the piston is moved on the shock absorber.
  • a pressure sensor for detecting the; And a controller configured to determine that a leakage of the buffer fluid has occurred and perform a warning operation when the predetermined condition is satisfied based on the detected pressure information.
  • the buffer fluid monitoring system may include a buffer fluid monitoring system.
  • the predetermined condition may be a buffer fluid monitoring system in which the maximum pressure of the pressure information is equal to or less than a predetermined reference pressure.
  • the predetermined condition may be a buffer fluid monitoring system in which the frequency in which the highest pressure of the pressure information is equal to or less than the reference pressure in a reciprocating motion state of the piston is equal to or greater than a predetermined reference frequency.
  • the predetermined condition may be a buffer fluid monitoring system in which the pressure change value of the pressure information is equal to or greater than a predetermined reference pressure change value.
  • the predetermined condition may be a buffer fluid monitoring system in which the frequency of the pressure change value of the pressure information is greater than or equal to the reference pressure change value in a reciprocating state of the piston is equal to or greater than a predetermined reference frequency.
  • the apparatus may further include a position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston that is moved on the shock absorber.
  • the predetermined condition may include a predetermined position at which the piston is located based on the shock absorber.
  • a buffer fluid monitoring system may be provided in which the pressure of the pressure information at the position is equal to or less than a predetermined reference pressure.
  • the pressure of the pressure information is the piston at a predetermined position between the uppermost point of the upper end of the piston defined as the upper end of the piston reciprocates in the shock absorbing portion and the lowermost point of the shock absorbing portion.
  • a buffer fluid monitoring system can be provided which is the pressure at which the top of the pump advances.
  • the apparatus may further include a position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston that is moved on the shock absorber.
  • the predetermined condition may include a predetermined position at which the piston is located based on the shock absorber.
  • a buffer fluid monitoring system may be provided in which the pressure change value of the pressure information at the position is equal to or greater than a predetermined reference pressure change value.
  • the pressure change value of the pressure information is a predetermined position between the uppermost point of the upper end of the piston and the lowermost point of the shock absorbing part, which is defined as the upper end of the piston reciprocates in the shock absorbing part,
  • a buffer fluid monitoring system may be provided which is a pressure change value when the upper end of the piston is advanced.
  • the controller may further include an output module configured to output an image or an audio signal, wherein the controller may provide a buffer fluid monitoring system that outputs a warning message through the output module when it is determined that leakage of the buffer fluid occurs.
  • controller may be provided with a buffer fluid monitoring system for stopping the reciprocating motion of the piston when it is determined that the leakage of the buffer fluid occurs.
  • the hydraulic breaker connects a hydraulic source and the rear chamber of the cylinder for the forward movement of the piston or selectively blocks the flow of the hydraulic oil and a control valve for discharging the hydraulic oil from the rear chamber of the cylinder.
  • a shutoff valve The controller may be provided with a buffer fluid monitoring system for controlling the shutoff valve so that the shutoff valve blocks the flow of the working oil when it is determined that the leakage of the buffer fluid occurs.
  • And-the shutoff valve selectively blocks the flow of the hydraulic oil directed to the control valve-the controller is configured to block the flow of the shutoff valve so that the shutoff valve shuts off the flow of the hydraulic fluid when it is determined that leakage of the buffer fluid has occurred.
  • a buffer fluid monitoring system may be provided that controls the valve.
  • the controller may output a warning message through the output module when the maximum pressure of the pressure information is less than or equal to the first pressure, and when the maximum pressure of the pressure information is less than or equal to the second pressure less than the first pressure,
  • a buffer fluid monitoring system may be provided that stops the reciprocating motion.
  • the charging unit for filling the buffer fluid on the buffer portion; And a filling valve for selectively implementing and blocking a fluid connection between the filling part and the buffer part, wherein the controller stops the reciprocating motion of the piston, and then the filling part has a buffer fluid on the buffer part.
  • a buffer for controlling the filling valve so as to control the filling valve to block filling of the buffer fluid on the buffer part when the pressure of the pressure information reaches a predetermined buffer pressure due to the filling of the buffer fluid. Fluid monitoring systems may be provided.
  • the chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder Detecting, by a pressure sensor provided on an inner surface of the buffer part for buffering the movement of the piston using a buffer fluid, pressure information on the buffer part when the piston is moved on the buffer part; And determining that a leakage of the buffer fluid has occurred and performing a warning operation when the controller satisfies a predetermined condition based on the sensed pressure information.
  • the buffer fluid monitoring method may include providing a buffer fluid.
  • FIG. 1 is a schematic diagram of construction equipment including a hydraulic breaker according to an embodiment of the present invention
  • Figure 2 is a schematic diagram of a hydraulic breaker according to an embodiment of the present invention
  • Figure 3 is according to an embodiment of the present invention An exploded perspective view of a hydraulic breaker.
  • Figure 4 is a circuit diagram of a hydraulic breaker according to an embodiment of the present invention
  • Figure 5 is a schematic diagram showing the installation position of the pressure sensor according to an embodiment of the present invention.
  • FIG. 6 and 7 are diagrams illustrating pressure information characteristics sensed by a pressure sensor according to an embodiment of the present invention
  • FIG. 8 is a schematic configuration diagram of a buffer fluid monitoring system according to an embodiment of the present invention.
  • the longitudinal direction may mean an up and down direction based on FIGS. 2, 4 and 5.
  • the construction equipment 100 is equipment for performing a hitting operation on an object.
  • Construction equipment 100 for the blow operation is mainly implemented in the form that the hydraulic breaker 1000 is mounted as an attachment to a heavy-duty vehicle such as an excavator.
  • the hydraulic breaker 1000 is a device that performs an operation of hitting an object.
  • hydraulic breaker 1000 in the present invention is not limited to the above-described examples, it should be understood as a concept encompassing all other types of hitting device that performs a function of hitting the object in addition to the hydraulic breaker.
  • the hydraulic breaker 1000 is generally, but not necessarily, an attachment type mounted to a heavy-duty vehicle, ie, the carrier 120, and may also exist in an independent form from the carrier 120, such as a form directly handled by an operator.
  • the carrier 120 may be largely divided into a driving body 121 and a rotating body 122.
  • the traveling body 121 is mainly provided in a crawler type or a wheel type, and in some cases, may be a crane type or a truck type.
  • the rotating body 122 is mounted on the traveling body 121 to be rotatable about an axis in a direction perpendicular to the ground.
  • the rotating body 122 is provided with a connecting member 123 such as a boom or an arm.
  • the end of the connection member 123 may be detachably attached to the hydraulic breaker 1000 in the form of an attachment or fastened through the coupler 140.
  • the connecting member 123 is mainly two or more members are fastened in a link manner, connected to the cylinder can be bent or stretched by the expansion and contraction of the cylinder, stretching operation and the like.
  • the connection member 123 may position the hydraulic breaker 1000 attached to the end by the operation on the hit.
  • the carrier 120 may apply hydraulic pressure to the hydraulic breaker 1000 so that the mounted hydraulic breaker 1000 may operate, or in addition, the parts of the carrier 120 including the boom or the arm may be hydraulically applied to the coupler 140, or the like.
  • Hydraulic source 160 for supplying the hydraulic tank 160a for storing the operating oil may be installed.
  • a cabin 124 on which the operator boards is provided on the rotating body 122 so that the user can operate the carrier 120 or the hydraulic breaker 1000 by using a manipulation device such as a handle, a lever, or a button in the cabin 124.
  • a manipulation device such as a handle, a lever, or a button in the cabin 124.
  • FIGS. 2 and 3 a hydraulic breaker 1000 according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 and 3.
  • the hydraulic breaker 1000 may include a mounting bracket 1200, a main body 1400, and a chisel 1600.
  • the main body 1400 is a site for generating the striking force in the hydraulic breaker 1000, and has a cylinder 1430 and a piston 1440 accommodated in the cylinder 1430 therein for the hydraulic oil applied from the hydraulic source 160.
  • the chisel 1600 is a portion for directly hitting the hitting object, and the lower side of the main body 1400 (the piston 1440 in the following description) moves forward (extension) so that its upper end hits the lower end of the piston 1440. It defines downward, and is arrange
  • the mounting bracket 1200 is coupled to the upper end of the main body 1400, and is configured to connect the carrier 120 and the main body 1400.
  • the main components of the main body 1400 may be the cylinder 1430 and the piston 1440.
  • the piston 1440 is provided in a cylindrical shape
  • the cylinder 1430 may be provided in a hollow cylindrical shape so that the piston 1440 is inserted to reciprocate.
  • the inner surface 1435 of the cylinder is provided with various hydraulic ports 1433, 1434, 1435, and 1436 for supplying hydraulic pressure to the interior of the cylinder 1430 or for discharging the hydraulic pressure from the interior of the cylinder 1430.
  • the piston 1440 includes at least a small diameter portion 1446, a first large diameter portion 1444 positioned above the small diameter portion 1446, and a second large diameter portion 1442 positioned below the small diameter portion 1446. Can be.
  • the piston 1440 acts as a cylinder. It is possible to reciprocate forward and backward within 1430.
  • the front head 1450 and the buffer 1420 may be connected to the lower and upper ends of the cylinder 1430, respectively.
  • the front head 1450 is provided with a chisel pin (not shown) on which the chisel 1600 is placed, and the chisel 1600 is hit by the lower end of the piston 1440 when the piston 1440 is advanced by the chisel pin (not shown). Be placed in the proper position.
  • the front head 1450 includes a dust protector (not shown) for preventing foreign matter from entering the cylinder 1430 when the piston 1440 is reciprocated, or a sound absorbing member (not shown) for reducing the impact sound.
  • a dust protector for preventing foreign matter from entering the cylinder 1430 when the piston 1440 is reciprocated
  • a sound absorbing member (not shown) for reducing the impact sound.
  • the buffer unit 1420 has a buffer fluid chamber S therein, and the buffer fluid chamber S may impart an appropriate damping effect to the piston 1440 as its volume is compressed when the piston 1440 is retracted. have.
  • the buffer unit 1420 may have a buffer fluid injection hole 1402 formed by penetrating one surface of the buffer unit 1420 to fill the buffer fluid S with the buffer fluid chamber S.
  • the buffer fluid may be filled in the buffer fluid chamber S through the buffer fluid inlet 1402.
  • shock absorbing portion 1420 has been described as a configuration connected to the upper end of the cylinder 1430, the present invention is not limited thereto. From the standpoint, the installation location, shape, etc. can be changed in various ways.
  • the hydraulic breaker 1000 may further include a charging unit 1300 for filling the buffer fluid on the buffer unit 1420.
  • the charging unit 1300 may be configured to supply a buffer fluid to the buffer fluid chamber S of the buffer unit 1420.
  • the charging unit 1300 may be installed in the hydraulic breaker 1000, but is not limited thereto and may be installed in the carrier 120.
  • the charging unit 1300 may be installed in a space between the cover unit 1410 surrounding the cylinder 1430 and the cylinder 1430.
  • the hydraulic breaker 1000 may be provided with a filling valve 1310 for selectively implementing and blocking a fluid connection between the charging unit 1300 and the buffer unit 1420.
  • the filling valve 1310 may be installed in a path where the buffer fluid reaches the buffer fluid chamber S from the filling part 1300.
  • the filling valve 1310 may be installed in a path between the filling unit 1300, the buffer fluid inlet 1402, or the buffer fluid inlet 1402 from the filling unit 1300.
  • the buffer fluid cannot be moved from the filling part 1300 to the buffer fluid chamber S.
  • the buffer fluid is removed from the filling part 1300. It may be moved to the buffer fluid chamber (S).
  • the structure or structure of the hydraulic breaker 1000 described above is only one embodiment of the hydraulic breaker 1000 according to the present invention, and the hydraulic breaker 1000 according to the present invention may be similar to the above-described configuration or structure, although somewhat different. It is to be understood that other striking devices having functions are also included.
  • a circuit diagram of the hydraulic breaker 1000 according to the embodiment of the present invention will be described with reference to FIG. 4.
  • a piston 1440 is inserted into the cylinder 1430, and a chisel 1600 is disposed below the piston 1440.
  • the piston 1440 may include the small diameter portion 1446, the first large diameter portion 1444 positioned above the small diameter portion 1446, and the second large diameter portion 1442 positioned below the small diameter portion 1446. have.
  • the outer diameter of the first large diameter portion 1444 and the second large diameter portion 1442 may be substantially the same as the inner diameter of the cylinder 1430, and thus, the lower side and the second large portion of the cylinder 1430 may be disposed inside the cylinder 1430.
  • the front chamber 1431 may be formed between the necks 1442, and the rear chamber 1432 may be formed between the upper side of the cylinder 1430 and the first large diameter part 1444.
  • a reverse port 1433 is formed in the front chamber 1431, and the reverse port 1433 may be connected to the hydraulic source 160 through the reverse line 1433a.
  • hydraulic pressure may be applied to the front chamber 1431 by the hydraulic oil flowing from the hydraulic source 160 through the reverse line 1433a to the reverse port 1433.
  • the hydraulic pressure applied to the front chamber 1431 may act on the stepped surface 1442a of the second large diameter portion 1442, and a reverse force may be applied to the piston 1440.
  • a forward port 1434 is formed in the rear chamber 1432, and the forward port 1434 may be connected to the control valve 1460 through the forward line 1434a.
  • the control valve 1460 may be disposed in either one of the forward position 1460-2 or the reverse position 1460-1, and the forward position 1460-2 may move the forward line 1434a to the hydraulic source 160. ), And the forward line 1434a may be connected to the hydraulic tank 160a in the reverse position 1460-1.
  • the hydraulic pressure applied to the rear chamber 1432 acts on the stepped surface 1444a of the first large diameter portion 1444, and a forward force is applied to the piston 1440.
  • the rear chamber 1432 is connected to the hydraulic tank 160a via the forward line 1434a and the control valve 1460, and the forward position ( The hydraulic oil introduced into the rear chamber 1432 in 1460-2 is discharged to the hydraulic tank 160a.
  • the stepped surface 1444a of the first large diameter portion 1444 has an area larger than the stepped surface 1442a of the second large diameter portion 1442 so that the control valve 1460 is positioned at the forward position 1460-2.
  • the forward force may be greater than the backward force so that the piston 1440 may advance.
  • the reciprocating motion of the piston 1440 can be implemented as the control valve 1460 is disposed in the forward position 1460-2 or the backward position 1460-1.
  • the position control of the control valve 1460 may be hydraulic.
  • control valve 1460 may be a hydraulic valve in which the forward position 1460-2 and the reverse position 1460-1 may be selected according to the input hydraulic signal.
  • Both ends of the control valve 1460 may be provided with a forward action surface 1464 and a reverse action surface 1462 respectively connected to the hydraulic line.
  • the forward action surface 1464 may be connected to the forward control line 1464a branched into the long stroke line 1435a and the short stroke line 1434a.
  • Reverse action surface 1462 may be connected to hydraulic source 160 via reverse control line 1462a.
  • the forward acting surface 1464 has an area larger than the backward acting surface 1462, so that when the hydraulic pressure is applied to both acting surfaces, the control valve 1460 may be disposed at the forward position 1460-2. Accordingly, the piston 1440 may move forward.
  • the control valve 1460 may be disposed from the forward position 1460-2 to the reverse position 1460-1, and thus the piston 1440 may reverse.
  • the long stroke line 1435a is connected to the long stroke port 1435 formed in the cylinder 1430.
  • the long stroke port 1435 may be formed between the forward port 1434 and the reverse port 1433 of the cylinder 1430 to be connected or disconnected from the front chamber 1431 according to the position of the piston 1440.
  • the long stroke port 1435 has a front chamber 1431 when the piston 1440 is advanced so that the second large diameter portion 1442 is on the long stroke port 1435 or located below the long stroke port 1435. The connection with is cut off.
  • the long stroke port 1435 is connected to the front chamber 1431 when the piston 1440 is backward and the second large diameter portion 1442 is positioned above the long stroke port 1435.
  • the hydraulic pressure from the hydraulic source 160 is reverse line 1433a, the reverse port 1433, the front chamber 1431, the long stroke port 1435.
  • the control valve 1460 may be disposed at the forward position 1460-2 by being sequentially applied to the forward action surface 1464 through the long stroke line 1435a and the forward control line 1464a.
  • the short stroke line 1436a may be connected to the short stroke port 1434 formed in the cylinder 1430.
  • the short stroke port 1436 is formed between the forward port 1434 and the reverse port 1433 of the cylinder 1430 to be connected to or disconnected from the front chamber 1431 according to the position of the piston 1440, and the long stroke It may be formed at a position closer to the reverse port 1433 than to the port 1435.
  • the short stroke port 1434 is in contact with the front chamber 1431 when the piston 1440 is advanced so that the second large diameter portion 1442 is on the short stroke port 1434 or located ahead of the short stroke port 1434.
  • the connection is cut off.
  • the short stroke port 1434 is connected to the front chamber 1431 when the piston 1440 is backward and the second large diameter portion 1442 is located behind the short stroke port 1434.
  • a shift valve 1470 may be provided on the short stroke line 1436a to control a short circuit of the short stroke line 1436a.
  • the shift valve 1470 may be selectively disposed at any one of the long stroke position 1470-1 and the short stroke position 1470-2, and the short stroke line 1436a at the long stroke position 1470-1. ) And the short stroke line 1434a is connected at the short stroke position 1470-2.
  • the long stroke mode and the short stroke mode of the piston 1440 may be determined by the shift valve 1470.
  • the shift valve 1470 is disposed in the short stroke position 1470-2 and the second large diameter portion 1442 is located behind the short stroke port 1434 such that the short stroke port 1434 and the front chamber 1431 are positioned.
  • Hydraulic fluid is connected to the hydraulic source 160, the reverse line 1433a, the reverse port 1433, the front chamber 1431, the short stroke port 1434, the shift valve 1470, and the forward action surface 1464. Can be reached sequentially.
  • the piston 1440 may selectively perform reciprocating motion in the long stroke mode and the short stroke mode according to the position of the shift valve 1470.
  • the shift valve 1470 may automatically switch between the long stroke position 1470-1 and the short stroke position 1470-2 by the controller 180, and the long stroke position may be selected by the user. Switching between 1470-1 and the short stroke position 1470-2 may be performed.
  • the hydraulic breaker 1000 may further include a shutoff valve 1480 for selectively blocking the flow of the hydraulic oil.
  • the shutoff valve 1480 may be installed in a line through which the hydraulic oil is moved, and may selectively allow the flow of the hydraulic oil, or block the flow of the hydraulic oil.
  • the shutoff valve 1480 may allow the flow of the hydraulic oil in the connecting position (1480-2), and may block the flow of the hydraulic oil in the blocking position (1480-1).
  • shutoff valve 1480 is installed on the forward control line 1464a and moves forward from the long stroke port 1435 to the forward action surface 1464 from the hydraulic oil or the short stroke port 1434 to the forward action surface 1464. Allows the flow of hydraulic fluid to be transported to and may be blocked.
  • shutoff valve 1480 is disposed at the shutoff position 1480-1 to block the flow of the hydraulic oil, no hydraulic pressure is applied to the forward action surface 1464, so that the control valve 1460 is moved backward. Cannot be converted from 1) to the advance position 1460-2.
  • hydraulic fluid is not supplied from the hydraulic source 160 to the rear chamber 1432 by the control valve 1460 in the reverse position 1460-1, so that the reciprocating motion of the piston 1440 may be stopped.
  • the installation position of the shutoff valve 1480 is not limited to the above-mentioned position, but may be installed on the reverse line 1433a or may also be installed on the advance line 1434a.
  • shutoff valve 1480 may be installed in a line through which hydraulic oil is discharged from the hydraulic source 160.
  • the shutoff valve 1480 blocks the flow of the hydraulic oil
  • the hydraulic oil supply from the hydraulic source 160 to the cylinder 1430 may be interrupted.
  • the buffer fluid filled on the buffer fluid chamber S may leak from the buffer fluid chamber S through a gap between the buffer fluid inlet 1402 or the buffer unit 1420 and the piston 1440.
  • the piston 1440 may not be able to properly dampen the movement ascending on the cylinder 1430, and the piston 1440 may be damaged.
  • the piston 1440 may not have sufficient acceleration due to the pressure of the buffer fluid.
  • the hydraulic breaker 1000 may be provided with a pressure sensor 150 for detecting pressure information on the buffer fluid on the buffer 1420.
  • the hydraulic breaker 1000 may be further provided with a transmission module (not shown).
  • the transmission module may be configured to output pressure information to the controller 180.
  • the transmission module may be configured to receive the pressure information sensed by the pressure sensor 150 from the pressure sensor 150 and transmit the received pressure information to the controller 180.
  • the transmission module may output pressure information from the pressure sensor 150 to the controller 180 through wired communication, or output pressure information from the pressure sensor 150 to the controller 180 through wireless communication.
  • wireless communication of the transmission module may include Bluetooth Low Energy (BTLE) or Zigbee. Since communication between the pressure sensor 150 and the controller 180 does not require a high bandwidth, low power communication such as BTLE or direct rain may be desirable.
  • BTLE Bluetooth Low Energy
  • Zigbee Zigbee
  • the communication method between the controller 180 and the pressure sensor 150 is not necessarily limited thereto.
  • the controller 180 may determine whether the buffer fluid leaks from the buffer 1420 based on the detected pressure information.
  • the controller 180 may perform a warning operation when it is determined that the buffer fluid leaks.
  • the controller 180 is an electronic circuit that processes and calculates various electronic signals.
  • the controller 180 receives pressure information or a signal from the pressure sensor 150, calculates and processes information / data, and uses hydraulic pressure as an electronic signal. It is possible to control the breaker 1000 and other configurations of construction equipment.
  • the controller 180 is typically located on the carrier 120, but may also be located on the hydraulic breaker 1000.
  • controller 180 does not necessarily need to be implemented as a single object.
  • controller 180 may be implemented as a plurality of controllers 180 that can communicate with each other.
  • the controller 180 may be distributedly disposed such that a part thereof is installed on the hydraulic breaker 1000 side and the other part is installed on the carrier 120, and the controller 180 is wirelessly distributed between the distributed controllers 180. You can do that by collaborating by performing wired communication.
  • controllers 180 when a plurality of controllers 180 are distributed, some of them simply transmit signals or information to a slave type, and others receive various signals or information to a master type to process / operate and command / It may also take the form of performing control.
  • the controller 180 will be described in more detail when describing the scratch monitoring system below.
  • the pressure sensor 150 may be installed on the buffer unit 1420.
  • the pressure sensor 150 may be installed on the inner surface 1421 of the shock absorbing portion 1420.
  • the pressure sensor 150 may detect information about the pressure on the buffer fluid chamber S.
  • the transmission module may be installed on the inner surface 1421 of the buffer unit 1420.
  • the buffer unit 1420 may be further provided with a position sensor 200 for detecting the position information for the vertical movement of the piston 1440.
  • the position sensor 200 may be installed on the inner surface 1421 of the buffer 1420.
  • the buffer unit 1420 may form a buffer fluid chamber S having a sufficient volume between the pistons 1440, and the pressure sensor 150, the position sensor 200, and the transmission module may buffer the buffer fluid of the buffer unit 1420. Is installed on the chamber (S), it may be installed in a position not in contact with the piston 1440 reciprocating on the buffer fluid chamber (S).
  • the pressure sensor 150, the position sensor 200, and the transmission module are installed on the inner surface 1421 of the shock absorbing portion 1420, the pressure sensor 150, the position sensor 200, and the transmission module may be disconnected from the outside of the shock absorbing portion 1420.
  • the pressure sensor 150, the position sensor 200 and the entire transmission module may be installed on the inner surface 1421 of the shock absorbing portion 1420, that is, on the shock absorbing fluid chamber (S). As a result, it may be disconnected from the outside of the buffer unit 1420.
  • the transmitting module may transmit pressure information, location information, etc. to the controller 180 through wireless communication with the controller 180.
  • the inner surface 1421 of the buffer unit 1420 has a power charging unit 1300 (not shown) that can be charged wirelessly to supply power to the pressure sensor 150, the transmission module or the position sensor 200. More can be installed.
  • the power charger 1300 may supply power required for each of the pressure sensor 150, the transmission module, or the position sensor 200 in a wireless or wired manner, and a power charger (not shown) installed outside the charging unit 1300. Can be powered in a wireless manner.
  • the shock absorbing portion 1420 does not need to form a separate opening for positioning and driving the pressure sensor 150, the transmission module or the position sensor 200, and the pressure sensor 150, the transmission module or the position sensor. 200 is disconnected from the outside of the buffer unit 1420, it is possible to more effectively implement the prevention of leakage of the buffer fluid on the buffer fluid chamber (S).
  • the buffer fluid monitoring system that can monitor the leakage of the buffer fluid using the pressure sensor 150 and the controller 180 will be described in more detail.
  • the buffer fluid monitoring system is a system for implementing monitoring of the leakage of the buffer fluid filled on the buffer unit 1420 of the hydraulic breaker 1000 described above.
  • the buffer fluid monitoring system may monitor the occurrence of the buffer fluid leak using the pressure information sensed by the pressure sensor 150 described above.
  • a warning operation may be performed in the event of a leakage of buffer fluid as a result of monitoring.
  • the buffer fluid monitoring system may include a pressure sensor 150 and the controller 180, the controller 180 is buffered when the predetermined condition is satisfied based on the pressure information sensed from the pressure sensor 150 A leak of fluid may be determined and a warning action may be performed.
  • the predetermined condition may be a reference condition for determining whether the buffer fluid on the buffer unit 1420 has leaked.
  • the controller 180 may determine that a leakage of the buffer fluid occurs when the data calculated / converted based on the pressure information or the pressure information detected from the pressure sensor 150 satisfies a predetermined condition. If the specified conditions are not met, it may be determined that no leakage of the buffer fluid occurs.
  • the predetermined condition may be set by the user or may be set based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks.
  • the buffer fluid leakage monitoring system may further include an output module 190 for outputting an image or audio.
  • the output module 190 may be implemented as, for example, an image output module 190 that mainly outputs an image or an audio output module 190 that outputs an audio.
  • various output devices for transmitting information to the user may be adopted as the output module 190.
  • the output module 190 may directly output an image or an audio to a user, and may be configured to include a USB port for transmitting an image / audio signal to another device that directly outputs an image or an audio to a user.
  • the output module 190 may be a component capable of outputting an image or an audio to output a warning message for occurrence of a buffer fluid leakage.
  • the output module 190 may be installed in the breaker 1000 or may be installed in the carrier 120.
  • the controller 180 may control the output module 190 to output a warning message about occurrence of a buffer fluid leakage to the user through the output module 190.
  • the controller 180 and the output module 190 may enable wired communication or wireless communication.
  • the predetermined condition may be a condition in which the maximum pressure P4 of the pressure information is equal to or less than the predetermined reference pressures P1 and P2.
  • the maximum pressure P4 of the pressure information may mean a pressure P4 having the highest value among the pressures of the buffer fluid chamber S that is changed according to the reciprocating motion of the piston 1440.
  • the controller 180 may determine that leakage of the buffer fluid has occurred.
  • the predetermined reference pressures P1 and P2 may be set by the user and are based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks. It may be set.
  • the predetermined condition may be a condition in which the minimum pressure P5 of the pressure information is equal to or less than the predetermined reference pressure P3.
  • the minimum pressure P5 of the pressure information may mean a pressure P5 having a minimum value among the pressures of the buffer fluid chamber S that are changed according to the reciprocating motion of the piston 1440.
  • the controller ( 180 may determine that the leakage of the buffer fluid has occurred.
  • the predetermined condition may be a condition in which the frequency at which the maximum pressure P4 of the pressure information is equal to or less than the predetermined reference pressures P1 and P2 in the reciprocating motion of the piston 1440 is equal to or greater than the predetermined reference frequency.
  • the pressure change of the pressure information may be repeated according to the reciprocating motion of the piston 1440.
  • the pressure of the pressure information may be lowered, and the piston 1440 moves backward in the upward direction on the cylinder 1430.
  • the pressure of the pressure information may be increased, and the pressure change of the pressure information may be repeated by the reciprocating motion of the piston 1440.
  • the highest pressure P4 of the pressure information may be repeated three times and sensed.
  • the controller 180 may determine that the buffer fluid is leaked.
  • the controller 180 buffers the fluid. Can be judged to have leaked.
  • the predetermined condition may be a condition in which the frequency at which the minimum pressure P5 of the pressure information is less than or equal to the predetermined reference pressure P3 in the reciprocating motion of the piston 1440 is equal to or greater than the predetermined reference frequency.
  • the predetermined reference frequency may be set by the user, or may be set based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks.
  • the predetermined condition may be a condition in which the pressure change value ⁇ P of the pressure information is equal to or greater than a predetermined reference pressure change value.
  • the pressure change value ⁇ P of the buffer fluid chamber S may increase due to the vertical movement of the piston 1440.
  • the controller 180 may determine whether the buffer fluid leaks.
  • the pressure change value ⁇ P may be a difference between the highest pressure P4 and the minimum pressure P5.
  • the controller 180 may buffer the fluid. It can be judged that a leak has occurred.
  • the predetermined reference pressure change value may be set by the user and may be set based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks. have.
  • the predetermined condition may be a condition in which the frequency of the pressure change value ⁇ P of the pressure information is equal to or greater than the predetermined reference pressure change value in the reciprocating state of the piston 1440.
  • the pressure change of the pressure information may be repeated according to the reciprocating motion of the piston 1440.
  • the controller ( 180 may determine that the buffer fluid has leaked.
  • the predetermined condition may be a condition that the pressure of the pressure information at a predetermined position where the piston 1440 is located with respect to the buffer unit 1420 is equal to or less than the predetermined reference pressures P1 and P2.
  • the pressure of the pressure information used as a basis for determining whether the buffer fluid is leaked may be the pressure when the piston 1440 is located at a predetermined position on the buffer unit 1420.
  • the pressure of the pressure information may be a predetermined pressure between the highest pressure P4 and the minimum pressure P5.
  • the upper end of the piston 1440 may reciprocate on the buffer fluid chamber S of the buffer unit 1420.
  • the uppermost point K1 and the shock absorbing portion 1420 of the upper end of the piston 1440 defined as the upper end of the piston 1440 reciprocates in the shock absorbing portion 1420.
  • the controller 180 When located at the predetermined position K3 between the lowest points K2, when the pressure of the pressure information at that time is equal to or less than the predetermined reference pressures P1 and P2, the controller 180 is connected to the buffer fluid. It can be determined that a leak has occurred.
  • the dashed-dotted line may be a signal relating to position information detected from the position sensor 200 as the piston 1440 reciprocates on the buffer unit 1420.
  • the solid line may be a signal regarding pressure information detected from the pressure sensor 150.
  • the position of the piston 1440 in FIG. 5 indicates that the upper end of the piston 1440 is advanced on the buffer portion 1420 to reach the lowest point.
  • the position sensor 200 may not detect the piston 1440.
  • the position sensor 200 may have a predetermined time ( From t1), the piston 1440 may be detected.
  • the signal related to the position information detected from the position sensor 200 may detect the piston 1440 at a specific time point t1-t2, and the other specific time point 0-t1, At t2-t3), the piston 1440 cannot be detected.
  • the controller 180 can determine whether the piston 1440 moves forward or backward at a predetermined time point and the position of the piston 1440.
  • the pressure of the pressure information, the uppermost point (K1) of the upper end of the piston 1440 is defined as the upper end of the piston 1440 reciprocating in the shock absorbing portion 1420 and the lowest side of the shock absorbing portion 1420 At a predetermined position K3 between the points K2, it may be the pressure when the upper end of the piston 1440 is advanced.
  • the predetermined position K3 between the uppermost point K1 of the upper end of the piston 1440 and the lowermost point K2 of the shock absorbing part 1420 may be a position sensor 200 of the piston 1440. It may be a position at a time point t2 at which the position is not sensed, and at the moment t2 when the upper end of the piston 1440 reaches the predetermined position K3, the pressure sensor 150 at that time t2 It may be data used to determine whether the pressure (P6) detected from the () satisfies a predetermined condition.
  • the forward movement of the piston 1440 is advanced by the pressure of the buffer fluid of the shock absorbing portion 1420, and the hydraulic fluid flows into the rear chamber 1432 to provide the pressure of the hydraulic oil.
  • the controller 180 can more accurately determine the leakage of the buffer fluid based on the pressure information when the upper end of the piston 1440 is advanced.
  • the predetermined condition may be a condition in which the pressure change value ⁇ P of the pressure information at a predetermined position where the piston 1440 is located with respect to the buffer unit 1420 is equal to or greater than a predetermined reference pressure change value.
  • the pressure change value ⁇ P is the difference between the highest pressure P4 and the pressure P6 at the time point t2 at which the upper end of the piston 1440 changes to a position K3 which is not detected from the position sensor 200. Can be.
  • the pressure change value ⁇ P of the pressure information may be a pressure change value ⁇ P when the upper end of the piston 1440 advances at a predetermined position K3.
  • the pressure change value ⁇ P of the pressure information is an instantaneous rate of change (inclination of the tangent line) at the time t2 at which the upper end of the piston 1440 is advanced and changes to a position K3 which is not detected by the position sensor 200. Can be.
  • controller 180 determines that leakage of the buffer fluid has occurred, a function implemented by the controller 180 will be described in detail.
  • the controller 180 may output a warning message through the output module 190.
  • controller 180 may stop the reciprocating motion of the piston 1440 when it is determined that the leakage of the buffer fluid occurs.
  • the controller 180 may output a warning message to the user through the output module 190 when the pressure of the pressure information is equal to or greater than the first pressure P1, and the pressure information.
  • the pressure is less than or equal to the second pressure P2 smaller than the first pressure P1, the reciprocating motion of the piston 1440 may be stopped.
  • the controller 180 may notify the user of the fact through the output module 190 when the leaking degree of the buffer fluid is at a warning level, and the user's separate operation when the leaking degree of the buffer fluid is at or above the warning level. Without it, the reciprocating motion of the piston 1440 can be stopped.
  • the controller 180 can prevent damage to the piston 1440 due to leakage of the buffer fluid.
  • the controller 180 may control the shutoff valve 1480 such that the shutoff valve 1480 blocks the flow of the working oil.
  • the shutoff valve 1480 when the controller 180 does not control the shutoff valve 1480, the shutoff valve 1480 is in a connection position 1480-2, and when the controller 180 controls the shutoff valve 1480.
  • the shutoff valve 1480 may be changed from the connecting position 1480-2 to the blocking position 1480-1.
  • the controller 180 may control the shutoff valve 1480 to be changed from the connection position 1480-2 to the shutoff position 1480-1, and as a result, the shutoff valve 1480 controls the flow of hydraulic oil. You can block.
  • the control valve 1460 is continuously in the reverse position.
  • the hydraulic oil of the hydraulic source 160 may not flow into the rear chamber 1432 so that the reciprocating motion of the piston 1440 may not be implemented.
  • the controller 180 controls the hydraulic pressure source 160 so that the hydraulic pressure source 160 supplies hydraulic oil to the breaker 1000, and the hydraulic pressure source 160 actuates the breaker 1000. It can be controlled to off state without supplying.
  • the controller 180 may control the hydraulic source 160 to prevent the hydraulic oil from being supplied to the breaker 1000.
  • controller 180 may control the shift valve 1470 to control the reciprocating motion of the piston 1440 when it is determined that leakage of the buffer fluid occurs.
  • the controller 180 may control the piston 1440 to change to the short stroke state by controlling the shift valve 1470 when the piston 1440 determines that the leakage of the buffer fluid occurs in the long stroke state.
  • the piston 1440 may be stopped by controlling the shutoff valve 1480.
  • the controller 180 may sequentially control the shift valve 1470 and the shutoff valve 1480, so that when the piston 1440 is a long stroke, the controller 180 may sequentially change to a short stroke and stop again at the short stroke.
  • the user may recognize that the leakage of the buffer fluid has occurred by changing the reciprocating state of the piston 1440 by the control of the controller 180.
  • the warning operation of the controller 180 may mean an operation of outputting a warning message to the user through the output module 190 and / or changing the reciprocating motion state of the piston 1440.
  • controller 180 may control the filling valve 1310 to fill the buffer fluid in the buffer 1420.
  • the controller 180 stops the reciprocating motion of the piston 1440 when it is determined that leakage of the buffer fluid has occurred, and then the filling part 1300 fills the buffer fluid on the buffer part 1420.
  • the control unit 1310 is changed from the blocking position to the connecting position, and when the pressure information of the pressure information reaches a predetermined buffering pressure due to the filling of the buffering fluid, further buffering fluid is filled on the buffering unit 1420.
  • the filling valve 1310 may be controlled to block the change from the connection position to the blocking position.
  • the controller 180 stops the reciprocating motion of the piston 1440 and controls the filling valve 1310 to a predetermined buffer pressure.
  • the buffer fluid may be filled on the buffer unit 1420 until it is reached.
  • the predetermined buffer pressure may be set by the user, or may be set based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks.
  • the chisel 1600 hits an object according to the reciprocating motion of the piston 1440 in the cylinder 1430 (S10).
  • the buffer part buffers the movement of the piston 1440 using the buffer fluid.
  • the pressure sensor 150 provided on the inner surface 1421 of the 1420 detects the pressure information on the shock absorbing portion 1420 when the piston 1440 is moved on the shock absorbing portion 1420 (S20) and the controller 180. ) Satisfies a predetermined condition based on the detected pressure information, and may determine that the leakage of the buffer fluid has occurred and perform a warning operation (S30).
  • the controller 180, the pressure sensor 150, the position sensor 200, the shutoff valve 1480, and the shift valve ( 1470, the filling valve 1310 and the output module 190 are capable of wired communication or wireless communication, and are controlled by the controller 180 to block the valve 1480, the shift valve 1470, and the filling valve 1310. And the output module 190 may be controlled.
  • the predetermined reference pressure (P1, P2, P3), the predetermined reference pressure change value, etc. may be input by the input unit 195, the controller 180 is a normal state or buffer buffer fluid does not leak or It may be set based on the pressure information obtained from the pressure sensor 150 in the state of the fluid leakage.
  • the predetermined reference pressure (P1, P2, P3), the predetermined reference pressure change value, etc. is a normal state in which the controller 180 does not leak the buffer fluid based on the temperature measured from a temperature sensor (not shown) or / And it may be set based on the pressure information obtained from the pressure sensor 150 in the state of leakage of the buffer fluid.
  • the predetermined reference pressures P1, P2, and P3, the predetermined reference pressure change value, and the like are measured on the charging unit 1300 measured from a temperature sensor (not shown). It may be set based on temperature and / or external temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

A hydraulic breaker according to one embodiment of the present invention includes: a cylinder having a plurality of hydraulic ports; a piston for reciprocating in the cylinder by hydraulic pressure of hydraulic oil flowing in or out through the hydraulic port; a buffering part for buffering the movement of the piston using a buffer fluid; a pressure sensor for sensing pressure information on the buffering part when the piston is moved on the buffering part; and a transmission module for outputting the pressure information to a controller which determines whether the buffer fluid leaks from the buffering part on the basis of the sensed pressure information and performs a warning operation when it is determined that the buffer fluid has leaked.

Description

유압식 브레이커, 완충유체 모니터링 시스템 및 완충유체 모니터링 방법Hydraulic breakers, buffer fluid monitoring systems and buffer fluid monitoring methods
본 발명은 유압식 브레이커, 완충유체 모니터링 시스템 및 완충유체 모니터링 방법에 관한 것으로서, 더욱 상세하게는 피스톤의 이동을 완충하는 완충유체의 누출을 모니터링하는 유압식 브레이커, 완충유체 모니터링 시스템 및 완충유체 모니터링 방법에 관한 것이다.The present invention relates to a hydraulic breaker, a buffer fluid monitoring system and a buffer fluid monitoring method, and more particularly to a hydraulic breaker, a buffer fluid monitoring system and a buffer fluid monitoring method for monitoring the leakage of the buffer fluid buffering the movement of the piston. will be.
브레이커(breaker)는 피스톤의 왕복 운동을 통해 대상물에 접촉되는 치즐을 타격하여 암반 등을 파쇄하기 위해 사용되는 장치로, 대형 건설 현장 등에서는 굴삭기 등 중장비 차량에 장착되는 유압식 어태치먼트 형태가 주로 이용되고 있다.A breaker is a device used to crush a rock by hitting a chisel in contact with an object through a reciprocating motion of a piston, and a hydraulic attachment form that is mounted on a heavy equipment vehicle such as an excavator is mainly used in a large construction site. .
암반 파쇄 작업은 건설 기한 등으로 인하여 그 작업 속도가 중요한 요인의 하나로 작용한다. 따라서, 종래의 브레이커는 작업자의 조작에 따라 경암파쇄를 위해 타격력이 강화되도록 피스톤의 스트로크 거리를 길게 하는 롱 스트로크(long stroke) 모드와 연암 파쇄를 위해 다소 간의 타격력을 희생하더라도 타격속도가 향상되는 숏 스트로크 모드(short stroke) 모드를 변경하도록 구성되어 있다.Rock crushing work is one of the important factors due to the construction period, etc. the speed of work. Therefore, the conventional breaker has a long stroke mode that increases the stroke distance of the piston so that the impact force is strengthened for hard rock crushing according to the operator's operation, and the shot speed is improved even when sacrificing some impact force for soft rock crushing. It is configured to change the short stroke mode.
한편, 브레이커에는 상기 실린더 상에 왕복 운동하는 피스톤의 운동을 완충하기 위해 완충유체를 이용한 완충부가 설치된다.On the other hand, the breaker is provided with a buffer using a buffer fluid to buffer the movement of the piston reciprocating on the cylinder.
완충유체는 피스톤 또는 실린더에 발생되는 스크래치 및 균열로 인해 누출되는 문제가 발생된다.Buffer fluid is leaking due to scratches and cracks generated in the piston or cylinder.
완충유체가 누출된 상태에서, 지속하여 피스톤이 왕복운동 하는 경우 완충부의 완충기능이 떨어져 피스톤 또는 실린더 등이 파손될 문제가 있다.In the state where the buffer fluid is leaked, if the piston reciprocates continuously, there is a problem that the shock absorbing function of the shock absorbing part is dropped and the piston or the cylinder is damaged.
본 발명은 상기 문제를 해결하기 위한 것으로서, 완충유체의 누출을 감지하며, 완충유체가 누출된 경우 소정의 조건에 따라 사용자에게 그 정보를 알려주거나 피스톤의 운동을 제어하는 유압식 브레이커, 완충유체 모니터링 시스템 및 완충유체 모니터링 방법을 제공하고자 함이다.The present invention is to solve the above problems, it detects the leakage of the buffer fluid, hydraulic breaker, buffer fluid monitoring system to inform the user or control the movement of the piston according to a predetermined condition when the buffer fluid leaks And buffer fluid monitoring methods.
본 발명이 해결하고자 하는 과제가 상술한 과제로 제한되는 것은 아니며, 언급되지 아니한 과제들은 본 명세서 및 첨부된 도면으로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.The problem to be solved by the present invention is not limited to the above-described problem, the objects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. .
본 발명의 일 양상에 따르면, 복수의 유압 포트가 구비되는 실린더, 상기 유압 포트를 통해 유입 또는 배출되는 작동유의 유압에 의해 상기 실린더 내에서 왕복 운동하는 피스톤, 완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부, 상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 압력 센서 및 감지된 상기 압력정보에 기초하여 상기 완충부의 완충유체 누출여부를 판단하고 완충유체가 누출된 것으로 판단하는 경우 경고 동작을 수행하는 콘트롤러에 상기 압력정보를 출력하는 송신 모듈을 포함하는 유압식 브레이커가 제공될 수 있다.According to an aspect of the present invention, a cylinder having a plurality of hydraulic ports, a piston reciprocating in the cylinder by the hydraulic pressure of the hydraulic fluid introduced or discharged through the hydraulic port, the movement of the piston using a buffer fluid A buffer for buffering, a pressure sensor for detecting pressure information on the buffer when the piston is moved on the buffer, and a check whether the buffer fluid leaks from the buffer based on the detected pressure information, and the buffer fluid leaks. If it is determined that the hydraulic breaker including a transmission module for outputting the pressure information to the controller for performing a warning operation may be provided.
본 발명의 일 양상에 따르면, 복수의 유압 포트가 구비되는 실린더, 상기 유압 포트를 통해 유입 또는 배출되는 작동유의 유압에 의해 상기 실린더 내에서 왕복 운동하는 피스톤 및 완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부를 구비하는 유압식 브레이커의 완충유체 누출을 모니터링하는 완충유체 모니터링 시스템에 관한 것으로서, 상기 완충부의 내면에 설치되며, 상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 압력 센서 및 감지된 상기 압력정보에 기초하여 미리 정해진 조건을 만족하는 경우, 완충유체의 누출이 발생한 것으로 판단하고 경고 동작을 수행하는 콘트롤러를 포함하는 완충유체 모니터링 시스템이 제공될 수 있다.According to an aspect of the present invention, the movement of the piston using a cylinder having a plurality of hydraulic ports, the piston and the buffer fluid reciprocating in the cylinder by the hydraulic pressure of the hydraulic fluid flowing in or out through the hydraulic port A buffer fluid monitoring system for monitoring a buffer fluid leakage of a hydraulic breaker having a buffer buffer, which is installed on the inner surface of the buffer part, and detects pressure information on the buffer part when the piston is moved on the buffer part. When a predetermined condition is satisfied based on the pressure sensor and the sensed pressure information, a buffer fluid monitoring system including a controller for determining that a leak of the buffer fluid has occurred and performing a warning operation may be provided.
본 발명의 일 양상에 따르면, 실린더 내에서 피스톤의 왕복 운동에 따라 치즐이 대상물을 타격하는 단계, 완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부의 내면에 제공되는 압력 센서가 상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 단계 및 콘트롤러가 감지된 상기 압력정보에 기초하여 미리 정해진 조건을 만족하는 경우 완충유체의 누출이 발생한 것으로 판단하고 경고 동작을 수행하는 단계를 포함하는 완충유체 모니터링 방법이 제공될 수 있다.According to an aspect of the present invention, the chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder, the pressure sensor provided on the inner surface of the buffer for buffering the movement of the piston using a buffer fluid is the piston Detecting pressure information on the buffer unit when moving on the buffer unit, and determining that leakage of the buffer fluid has occurred and performing a warning operation when a controller satisfies a predetermined condition based on the detected pressure information. A buffer fluid monitoring method may be provided.
본 발명의 과제의 해결 수단이 상술한 해결 수단들로 제한되는 것은 아니며, 언급되지 아니한 해결 수단들은 본 명세서 및 첨부된 도면으로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.Means for solving the problems of the present invention are not limited to the above-described solutions, and the solutions not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. Could be.
본 발명의 일 실시예에 따른 유압식 브레이커, 완충유체 모니터링 시스템 및 완충유체 모니터링 방법에 의하면, 완충유체의 누출을 감지하며, 완충유체가 누출된 경우 소정의 조건에 따라 사용자에게 그 정보를 알려주거나 피스톤의 운동을 제어하여 브레이커의 파손을 방지할 수 있다.According to the hydraulic breaker, the buffer fluid monitoring system and the buffer fluid monitoring method according to an embodiment of the present invention, to detect the leakage of the buffer fluid, if the buffer fluid leaks to inform the user according to a predetermined condition or the piston By controlling the movement of the breaker can be prevented.
본 발명의 효과가 상술한 효과들로 제한되는 것은 아니며, 언급되지 아니한 효과들은 본 명세서 및 첨부된 도면으로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확히 이해될 수 있을 것이다.The effects of the present invention are not limited to the above-described effects, and effects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings.
도 1은 본 발명의 일 실시예에 따른 유압식 브레이커를 포함하는 건설 장비의 개략도이다.1 is a schematic diagram of construction equipment including a hydraulic breaker according to an embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따른 유압식 브레이커의 개략도이다.2 is a schematic view of a hydraulic breaker according to an embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 유압식 브레이커의 분해 사시도이다.3 is an exploded perspective view of a hydraulic breaker according to an embodiment of the present invention.
도 4는 본 발명의 일 실시예에 따른 유압식 브레이커의 회로도이다.4 is a circuit diagram of a hydraulic breaker according to an embodiment of the present invention.
도 5는 본 발명의 일 실시예에 따른 압력 센서의 설치 위치를 도시한 개략도이다.5 is a schematic diagram showing an installation position of a pressure sensor according to an embodiment of the present invention.
도 6 및 도 7은 본 발명의 일 실시예에 따른 압력 센서가 감지한 압력정보 특성에 관한 도면이다.6 and 7 illustrate characteristics of pressure information detected by a pressure sensor according to an exemplary embodiment of the present invention.
도 8은 본 발명의 일 실시예에 따른 완충유체 모니터링 시스템의 개략 구성도이다.8 is a schematic structural diagram of a buffer fluid monitoring system according to an embodiment of the present invention.
이하에서는 도면을 참조하여 본 발명의 구체적인 실시예를 상세하게 설명한다. 다만, 본 발명의 사상은 제시되는 실시예에 제한되지 아니하고, 본 발명의 사상을 이해하는 당업자는 동일한 사상의 범위 내에서 다른 구성요소를 추가, 변경, 삭제 등을 통하여, 퇴보적인 다른 발명이나 본 발명 사상의 범위 내에 포함되는 다른 실시예를 용이하게 제안할 수 있을 것이나, 이 또한 본원 발명 사상 범위 내에 포함된다고 할 것이다. Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may deteriorate other inventions or the present invention by adding, modifying, or deleting other elements within the scope of the same idea. Other embodiments that fall within the scope of the inventive concept may be readily proposed, but they will also be included within the scope of the inventive concept.
또한, 각 실시예의 도면에 나타나는 동일한 사상의 범위 내의 기능이 동일한 구성요소는 동일한 참조부호를 사용하여 설명한다.In addition, the components with the same functions within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.
본 명세서에서 본 발명에 관련된 공지의 구성 또는 기능에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우에 이에 관한 자세한 설명은 생략하기로 한다.In the present specification, when it is determined that a detailed description of a known configuration or function related to the present invention may obscure the gist of the present invention, a detailed description thereof will be omitted.
본 발명의 일 양상에 따르면, 복수의 유압 포트가 구비되는 실린더; 상기 유압 포트를 통해 유입 또는 배출되는 작동유의 유압에 의해 상기 실린더 내에서 왕복 운동하는 피스톤; 완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부; 상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 압력 센서; 및 감지된 상기 압력정보에 기초하여 상기 완충부의 완충유체 누출여부를 판단하고 완충유체가 누출된 것으로 판단하는 경우 경고 동작을 수행하는 콘트롤러에 상기 압력정보를 출력하는 송신 모듈;을 포함하는 유압식 브레이커가 제공될 수 있다.According to an aspect of the present invention, a cylinder having a plurality of hydraulic ports; A piston reciprocating in the cylinder by the hydraulic pressure of the hydraulic oil flowing in or out through the hydraulic port; A buffer for buffering the movement of the piston using a buffer fluid; A pressure sensor for sensing pressure information on the buffer when the piston is moved on the buffer; And a transmission module for determining whether the buffer fluid is leaked based on the detected pressure information, and outputting the pressure information to a controller that performs a warning operation when it is determined that the buffer fluid is leaked. Can be provided.
또, 상기 압력 센서 및 상기 송신 모듈은 상기 완충부의 내면에 설치되어 상기 완충부의 외부와 단절되는 유압식 브레이커가 제공될 수 있다.In addition, the pressure sensor and the transmission module may be provided on the inner surface of the shock absorbing portion is provided with a hydraulic breaker which is disconnected from the outside of the shock absorbing portion.
또, 상기 완충부의 내면에 설치되며 상기 완충부 상에서 이동되는 상기 피스톤의 위치정보를 센싱하는 위치 센서;를 더 포함하는 유압식 브레이커가 제공될 수 있다.The hydraulic breaker may further include a position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston moving on the shock absorber.
또, 상기 완충부의 내면에 설치되며, 상기 압력 센서, 상기 송신 모듈 또는 상기 위치 센서에 전력을 공급하도록 무선으로 전력이 충전될 수 있는 전력충전부;를 더 포함하는 유압식 브레이커가 제공될 수 있다.In addition, the hydraulic breaker may be provided further comprising: a power charging unit which is installed on the inner surface of the buffer unit, the power charging unit can be wirelessly charged to supply power to the pressure sensor, the transmission module or the position sensor.
본 발명의 다른 일 양상에 따르면, 복수의 유압 포트가 구비되는 실린더, 상기 유압 포트를 통해 유입 또는 배출되는 작동유의 유압에 의해 상기 실린더 내에서 왕복 운동하는 피스톤 및 완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부를 구비하는 유압식 브레이커의 완충유체 누출을 모니터링하는 완충유체 모니터링 시스템에 있에 관한 것으로서, 상기 완충부의 내면에 설치되며, 상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 압력 센서; 및 감지된 상기 압력정보에 기초하여 미리 정해진 조건을 만족하는 경우, 완충유체의 누출이 발생한 것으로 판단하고 경고 동작을 수행하는 콘트롤러;를 포함하는 완충유체 모니터링 시스템이 제공될 수 있다.According to another aspect of the invention, the movement of the piston using a cylinder having a plurality of hydraulic ports, the piston and the buffer fluid reciprocating in the cylinder by the hydraulic pressure of the hydraulic fluid flowing in or out through the hydraulic port A buffer fluid monitoring system for monitoring a buffer fluid leak of a hydraulic breaker having a shock absorber for cushioning the pressure, which is installed on the inner surface of the shock absorber and pressure information on the shock absorber when the piston is moved on the shock absorber. A pressure sensor for detecting the; And a controller configured to determine that a leakage of the buffer fluid has occurred and perform a warning operation when the predetermined condition is satisfied based on the detected pressure information. The buffer fluid monitoring system may include a buffer fluid monitoring system.
또, 상기 미리 정해진 조건은, 상기 압력정보의 최고압력이 소정의 기준압력 이하인 조건인 완충유체 모니터링 시스템이 제공될 수 있다.The predetermined condition may be a buffer fluid monitoring system in which the maximum pressure of the pressure information is equal to or less than a predetermined reference pressure.
또, 상기 미리 정해진 조건은, 상기 피스톤의 왕복 운동 상태에서, 상기 압력정보의 상기 최고압력이 상기 기준압력 이하인 빈도가 소정의 기준빈도 이상인 조건인 완충유체 모니터링 시스템이 제공될 수 있다.The predetermined condition may be a buffer fluid monitoring system in which the frequency in which the highest pressure of the pressure information is equal to or less than the reference pressure in a reciprocating motion state of the piston is equal to or greater than a predetermined reference frequency.
또, 상기 미리 정해진 조건은, 상기 압력정보의 압력 변화값이 소정의 기준압력 변화값 이상인 조건인 완충유체 모니터링 시스템이 제공될 수 있다.The predetermined condition may be a buffer fluid monitoring system in which the pressure change value of the pressure information is equal to or greater than a predetermined reference pressure change value.
또, 상기 미리 정해진 조건은, 상기 피스톤의 왕복 운동 상태에서, 상기 압력정보의 상기 압력 변화값이 상기 기준압력 변화값 이상인 빈도가 소정의 기준 빈도 이상인 조건인 완충유체 모니터링 시스템이 제공될 수 있다.The predetermined condition may be a buffer fluid monitoring system in which the frequency of the pressure change value of the pressure information is greater than or equal to the reference pressure change value in a reciprocating state of the piston is equal to or greater than a predetermined reference frequency.
또, 상기 완충부의 내면에 설치되며, 상기 완충부 상에서 이동되는 상기 피스톤의 위치정보를 감지하는 위치 센서;를 더 포함하고, 상기 미리 정해진 조건은, 상기 완충부를 기준으로 상기 피스톤이 위치하는 소정의 위치에서의 상기 압력정보의 압력이 소정의 기준압력 이하인 조건인 완충유체 모니터링 시스템이 제공될 수 있다.The apparatus may further include a position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston that is moved on the shock absorber. The predetermined condition may include a predetermined position at which the piston is located based on the shock absorber. A buffer fluid monitoring system may be provided in which the pressure of the pressure information at the position is equal to or less than a predetermined reference pressure.
또, 상기 압력정보의 압력은, 상기 피스톤의 상단이 상기 완충부 내에서 왕복 운동함에 따라 정의되는 상기 피스톤의 상단의 최상측 지점과 상기 완충부의 최하측 지점의 사이의 소정의 위치에서, 상기 피스톤의 상단이 전진할 때의 압력인 완충유체 모니터링 시스템이 제공될 수 있다.Further, the pressure of the pressure information is the piston at a predetermined position between the uppermost point of the upper end of the piston defined as the upper end of the piston reciprocates in the shock absorbing portion and the lowermost point of the shock absorbing portion. A buffer fluid monitoring system can be provided which is the pressure at which the top of the pump advances.
또, 상기 완충부의 내면에 설치되며, 상기 완충부 상에서 이동되는 상기 피스톤의 위치정보를 감지하는 위치 센서;를 더 포함하고, 상기 미리 정해진 조건은, 상기 완충부를 기준으로 상기 피스톤이 위치하는 소정의 위치에서의 상기 압력정보의 압력 변화값이 소정의 기준압력 변화값 이상인 조건인 완충유체 모니터링 시스템이 제공될 수 있다 The apparatus may further include a position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston that is moved on the shock absorber. The predetermined condition may include a predetermined position at which the piston is located based on the shock absorber. A buffer fluid monitoring system may be provided in which the pressure change value of the pressure information at the position is equal to or greater than a predetermined reference pressure change value.
또, 상기 압력정보의 압력 변화값은, 상기 피스톤의 상단이 상기 완충부 내에서 왕복 운동함에 따라 정의되는 상기 피스톤의 상단의 최상측 지점과 상기 완충부의 최하측 지점의 사이의 소정의 위치에서, 상기 피스톤의 상단이 전진할 때의 압력 변화값인 완충유체 모니터링 시스템이 제공될 수 있다.Further, the pressure change value of the pressure information is a predetermined position between the uppermost point of the upper end of the piston and the lowermost point of the shock absorbing part, which is defined as the upper end of the piston reciprocates in the shock absorbing part, A buffer fluid monitoring system may be provided which is a pressure change value when the upper end of the piston is advanced.
또, 영상 또는 음성을 출력하는 출력 모듈;을 더 포함하고, 상기 콘트롤러는, 완충유체의 누출이 발생한 것으로 판단하는 경우 상기 출력 모듈을 통해 경고 메시지를 출력하는 완충유체 모니터링 시스템이 제공될 수 있다.The controller may further include an output module configured to output an image or an audio signal, wherein the controller may provide a buffer fluid monitoring system that outputs a warning message through the output module when it is determined that leakage of the buffer fluid occurs.
또, 상기 콘트롤러는, 완충유체의 누출이 발생한 것으로 판단하는 경우 상기 피스톤의 왕복 운동을 정지시키는 완충유체 모니터링 시스템이 제공될 수 있다.In addition, the controller may be provided with a buffer fluid monitoring system for stopping the reciprocating motion of the piston when it is determined that the leakage of the buffer fluid occurs.
또, - 상기 유압식 브레이커는, 상기 피스톤의 전진운동을 위하여 유압 소스와 상기 실린더의 리어 챔버를 연결하거나 또는 상기 실린더의 리어 챔버로부터 상기 작동유를 배출하는 제어 밸브 및 상기 작동유의 흐름을 선택적으로 차단하는 차단 밸브를 더 구비함 - 상기 콘트롤러는, 완충유체의 누출이 발생한 것으로 판단하는 경우 상기 차단 밸브가 상기 작동유의 흐름을 차단하도록 상기 차단 밸브를 제어하는 완충유체 모니터링 시스템이 제공될 수 있다.The hydraulic breaker connects a hydraulic source and the rear chamber of the cylinder for the forward movement of the piston or selectively blocks the flow of the hydraulic oil and a control valve for discharging the hydraulic oil from the rear chamber of the cylinder. Further provided with a shutoff valve-The controller may be provided with a buffer fluid monitoring system for controlling the shutoff valve so that the shutoff valve blocks the flow of the working oil when it is determined that the leakage of the buffer fluid occurs.
또, - 상기 차단 밸브는, 상기 제어 밸브로 향하는 상기 작동유의 흐름을 선택적으로 차단함 - 상기 콘트롤러는, 완충유체의 누출이 발생한 것으로 판단하는 경우 상기 차단 밸브가 상기 작동유의 흐름을 차단하도록 상기 차단 밸브를 제어하는 완충유체 모니터링 시스템이 제공될 수 있다.And-the shutoff valve selectively blocks the flow of the hydraulic oil directed to the control valve-the controller is configured to block the flow of the shutoff valve so that the shutoff valve shuts off the flow of the hydraulic fluid when it is determined that leakage of the buffer fluid has occurred. A buffer fluid monitoring system may be provided that controls the valve.
또, 상기 콘트롤러는, 상기 압력정보의 최고압력이 제1 압력 이하인 경우 상기 출력 모듈을 통해 경고 메시지를 출력하고, 상기 압력정보의 최고압력이 상기 제1 압력보다 작은 제2 압력 이하인 경우 상기 피스톤의 왕복 운동을 정지시키는 완충유체 모니터링 시스템이 제공될 수 있다.The controller may output a warning message through the output module when the maximum pressure of the pressure information is less than or equal to the first pressure, and when the maximum pressure of the pressure information is less than or equal to the second pressure less than the first pressure, A buffer fluid monitoring system may be provided that stops the reciprocating motion.
또, 상기 완충부 상에 완충유체를 충전하는 충전부; 및 상기 충전부와 상기 완충부간의 유체적 연결을 선택적으로 구현 및 차단하는 충전 밸브;를 더 포함하며, 상기 콘트롤러는, 상기 피스톤의 왕복 운동을 정지시킨 후, 상기 충전부가 상기 완충부 상에 완충유체를 충전하도록 상기 충전 밸브를 제어하며, 완충유체의 충전으로 인해 상기 압력정보의 압력이 소정의 완충압력에 도달하는 경우 상기 완충부 상에 완충유체가 충전되는 것을 차단하도록 상기 충전 밸브를 제어하는 완충유체 모니터링 시스템이 제공될 수 있다.In addition, the charging unit for filling the buffer fluid on the buffer portion; And a filling valve for selectively implementing and blocking a fluid connection between the filling part and the buffer part, wherein the controller stops the reciprocating motion of the piston, and then the filling part has a buffer fluid on the buffer part. A buffer for controlling the filling valve so as to control the filling valve to block filling of the buffer fluid on the buffer part when the pressure of the pressure information reaches a predetermined buffer pressure due to the filling of the buffer fluid. Fluid monitoring systems may be provided.
본 발명의 또 다른 일 양상에 따르면 실린더 내에서 피스톤의 왕복 운동에 따라 치즐이 대상물을 타격하는 단계; 완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부의 내면에 제공되는 압력 센서가 상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 단계; 및 콘트롤러가 감지된 상기 압력정보에 기초하여 미리 정해진 조건을 만족하는 경우 완충유체의 누출이 발생한 것으로 판단하고 경고 동작을 수행하는 단계;를 포함하는 완충유체 모니터링 방법이 제공될 수 있다.According to another aspect of the invention the chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder; Detecting, by a pressure sensor provided on an inner surface of the buffer part for buffering the movement of the piston using a buffer fluid, pressure information on the buffer part when the piston is moved on the buffer part; And determining that a leakage of the buffer fluid has occurred and performing a warning operation when the controller satisfies a predetermined condition based on the sensed pressure information. The buffer fluid monitoring method may include providing a buffer fluid.
도 1은 본 발명의 일 실시예에 따른 유압식 브레이커를 포함하는 건설 장비의 개략도이며, 도 2는 본 발명의 일 실시예에 따른 유압식 브레이커의 개략도이고, 도 3은 본 발명의 일 실시예에 따른 유압식 브레이커의 분해 사시도이다.1 is a schematic diagram of construction equipment including a hydraulic breaker according to an embodiment of the present invention, Figure 2 is a schematic diagram of a hydraulic breaker according to an embodiment of the present invention, Figure 3 is according to an embodiment of the present invention An exploded perspective view of a hydraulic breaker.
도 4는 본 발명의 일 실시예에 따른 유압식 브레이커의 회로도이고, 도 5는 본 발명의 일 실시예에 따른 압력 센서의 설치 위치를 도시한 개략도이다.Figure 4 is a circuit diagram of a hydraulic breaker according to an embodiment of the present invention, Figure 5 is a schematic diagram showing the installation position of the pressure sensor according to an embodiment of the present invention.
도 6 및 도 7은 본 발명의 일 실시예에 따른 압력 센서가 감지한 압력정보 특성에 관한 도면이고, 도 8은 본 발명의 일 실시예에 따른 완충유체 모니터링 시스템의 개략 구성도이다.6 and 7 are diagrams illustrating pressure information characteristics sensed by a pressure sensor according to an embodiment of the present invention, and FIG. 8 is a schematic configuration diagram of a buffer fluid monitoring system according to an embodiment of the present invention.
첨부된 도면은, 본 발명의 기술적 사상을 명확하게 표현하기 위해, 본 발명의 기술적 사상과 관련성이 떨어지는 구성을 간략히 하거나 또는 생략하였다.In the accompanying drawings, in order to clearly express the technical idea of the present invention, a configuration that is not related to the technical idea of the present invention is simplified or omitted.
우선, 방향에 대한 용어를 정의하자면, 길이방향은 도2, 도 4 및 도 5를 기준으로 상하방향을 의미할 수 있다.First, to define a term for a direction, the longitudinal direction may mean an up and down direction based on FIGS. 2, 4 and 5.
도 1에 도시한 바와 같이, 일례로, 건설 장비(100)는 대상물에 대한 타격 작업을 수행하는 장비이다. 타격 작업을 위한 건설 장비(100)는 주로 굴삭기 등의 중장비 차량에 유압식 브레이커(1000)가 어태치먼트로 장착되는 형태로 구현된다.As shown in FIG. 1, as an example, the construction equipment 100 is equipment for performing a hitting operation on an object. Construction equipment 100 for the blow operation is mainly implemented in the form that the hydraulic breaker 1000 is mounted as an attachment to a heavy-duty vehicle such as an excavator.
유압식 브레이커(1000)는 대상물을 타격하는 동작을 수행하는 기기이다.The hydraulic breaker 1000 is a device that performs an operation of hitting an object.
물론, 본 발명에서 유압식 브레이커(1000)가 상술한 예로 한정되는 것은 아니며 유압 브레이커 이외에도 대상물을 타격하는 기능을 수행하는 다른 종류의 타격 기기도 모두 포괄하는 개념으로 이해되어야 할 것이다. Of course, the hydraulic breaker 1000 in the present invention is not limited to the above-described examples, it should be understood as a concept encompassing all other types of hitting device that performs a function of hitting the object in addition to the hydraulic breaker.
유압식 브레이커(1000)는 중장비 차량, 즉 캐리어(120)에 장착되는 어태치먼트 타입이 일반적이지만 반드시 그러한 것은 아니며, 작업자가 직접 다루는 형태와 같이 캐리어(120)로부터 독립적인 형태로도 존재할 수도 있다.The hydraulic breaker 1000 is generally, but not necessarily, an attachment type mounted to a heavy-duty vehicle, ie, the carrier 120, and may also exist in an independent form from the carrier 120, such as a form directly handled by an operator.
유압식 브레이커(1000)에 관한 보다 상세한 설명은 후술하기로 한다.More detailed description of the hydraulic breaker 1000 will be described later.
캐리어(120)는 크게 주행체(121)와 회전체(122)로 구분될 수 있다.The carrier 120 may be largely divided into a driving body 121 and a rotating body 122.
주행체(121)는 주로 크롤러 타입이나 휠 타입으로 제공되며 경우에 따라서는 크레인 타입이나 트럭 타입인 것도 가능하다. The traveling body 121 is mainly provided in a crawler type or a wheel type, and in some cases, may be a crane type or a truck type.
회전체(122)는 지면에 대해 수직 방향을 축을 기준으로 회전 가능하게 주행체(121) 상에 얹혀진다.The rotating body 122 is mounted on the traveling body 121 to be rotatable about an axis in a direction perpendicular to the ground.
회전체(122)에는 붐이나 암 등의 연결 부재(123)가 설치된다. 연결 부재(123)의 단부에는 유압식 브레이커(1000)가 어태치먼트 형태로 직접 체결되거나 커플러(140)를 통해 체결되는 식으로 탈부착될 수 있다.The rotating body 122 is provided with a connecting member 123 such as a boom or an arm. The end of the connection member 123 may be detachably attached to the hydraulic breaker 1000 in the form of an attachment or fastened through the coupler 140.
연결 부재(123)는 주로 2개 이상의 부재가 링크 방식으로 체결되며, 실린더와 연결되어 실린더의 신축에 의해 굽혀지거나 또는 펴지는 동작, 신축 동작 등을 수행할 수 있다. 연결 부재(123)는 이러한 동작에 의해 그 단부에 부착된 유압식 브레이커(1000)를 피타격물 상에 위치시킬 수 있다.The connecting member 123 is mainly two or more members are fastened in a link manner, connected to the cylinder can be bent or stretched by the expansion and contraction of the cylinder, stretching operation and the like. The connection member 123 may position the hydraulic breaker 1000 attached to the end by the operation on the hit.
또한, 캐리어(120)에는 장착된 유압식 브레이커(1000)가 동작할 수 있도록 유압식 브레이커(1000)에 유압을 인가하거나 그 밖에도 붐이나 암을 비롯한 캐리어(120)의 각 부위나 커플러(140) 등에 유압을 공급하는 유압 소스(160)와 작동유를 저장하는 유압 탱크(160a)가 설치될 수 있다.In addition, the carrier 120 may apply hydraulic pressure to the hydraulic breaker 1000 so that the mounted hydraulic breaker 1000 may operate, or in addition, the parts of the carrier 120 including the boom or the arm may be hydraulically applied to the coupler 140, or the like. Hydraulic source 160 for supplying the hydraulic tank 160a for storing the operating oil may be installed.
또한, 회전체(122) 상에는 작업자가 탑승하는 캐빈(124)이 마련되어 있어 사용자가 캐빈(124) 내의 핸들이나 레버, 버튼 따위의 조작 설비를 이용해 캐리어(120)나 유압식 브레이커(1000)를 조종할 수 있다.In addition, a cabin 124 on which the operator boards is provided on the rotating body 122 so that the user can operate the carrier 120 or the hydraulic breaker 1000 by using a manipulation device such as a handle, a lever, or a button in the cabin 124. Can be.
이하에서는 본 발명의 실시예에 따른 유압식 브레이커(1000)에 관하여 도 2 및 도 3을 참조하여 설명한다.Hereinafter, a hydraulic breaker 1000 according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 and 3.
도 2 및 도 3에 도시한 바와 같이, 일례로, 유압식 브레이커(1000)는 마운팅 브라켓(1200), 메인 바디(1400) 및 치즐(1600)을 포함할 수 있다. 메인 바디(1400)는 유압식 브레이커(1000)에서 타격력을 발생시키는 부위로, 그 내부에 실린더(1430)와 실린더(1430)에 수용되는 피스톤(1440)을 가져 유압 소스(160)로부터 인가되는 작동유의 유압에 의해 피스톤(1440)이 왕복 운동함에 따라 타격력을 발생시킨다. 치즐(1600)은 피타격물을 직접 타격하는 부위로, 그 상단이 피스톤(1440)의 하단에 타격되도록 메인 바디(1400)의 하측(이하의 설명에서 피스톤(1440)이 전진(신장)하는 방향을 하방으로 정의하고, 피스톤(1440)이 상측으로 후진(축소)하는 방향을 상방으로 정의함)에 배치된다.2 and 3, as an example, the hydraulic breaker 1000 may include a mounting bracket 1200, a main body 1400, and a chisel 1600. The main body 1400 is a site for generating the striking force in the hydraulic breaker 1000, and has a cylinder 1430 and a piston 1440 accommodated in the cylinder 1430 therein for the hydraulic oil applied from the hydraulic source 160. As the piston 1440 reciprocates by hydraulic pressure, it generates a striking force. The chisel 1600 is a portion for directly hitting the hitting object, and the lower side of the main body 1400 (the piston 1440 in the following description) moves forward (extension) so that its upper end hits the lower end of the piston 1440. It defines downward, and is arrange | positioned in the upward direction defining the direction which the piston 1440 reverses (reduces) upward.
마운팅 브라켓(1200)은 메인 바디(1400)의 상단에 결합되며, 캐리어(120)와 메인 바디(1400)의 연결 역할을 하는 구성이다.The mounting bracket 1200 is coupled to the upper end of the main body 1400, and is configured to connect the carrier 120 and the main body 1400.
메인 바디(1400)의 주요 구성은 실린더(1430)와 피스톤(1440)일 수 있다.The main components of the main body 1400 may be the cylinder 1430 and the piston 1440.
일례로, 피스톤(1440)은 원통 형상으로 제공되며, 실린더(1430)는 피스톤(1440)이 삽입되어 왕복 운동할 수 있도록 중공 원통 형상으로 제공될 수 있다.In one example, the piston 1440 is provided in a cylindrical shape, the cylinder 1430 may be provided in a hollow cylindrical shape so that the piston 1440 is inserted to reciprocate.
실린더의 내면(1437)에는 실린더(1430)의 내부로 유압을 공급하거나 실린더(1430) 내부로부터 유압을 배출하기 위한 각종 유압 포트(1433, 1434, 1435, 1436)들이 마련되어 있다. The inner surface 1435 of the cylinder is provided with various hydraulic ports 1433, 1434, 1435, and 1436 for supplying hydraulic pressure to the interior of the cylinder 1430 or for discharging the hydraulic pressure from the interior of the cylinder 1430.
피스톤(1440)은 적어도 소경부(1446), 소경부(1446)의 상측에 위치하는 제1 대경부(1444) 및 소경부(1446)의 하측에 위치하는 제2 대경부(1442)를 구비할 수 있다.The piston 1440 includes at least a small diameter portion 1446, a first large diameter portion 1444 positioned above the small diameter portion 1446, and a second large diameter portion 1442 positioned below the small diameter portion 1446. Can be.
유압 포트를 통해 실린더(1430) 내부로 인가되는 유압이 제1 대경부(1444) 및 제2 대경부(1442)에 의해 형성되는 단차면(1444a, 1442a)에 작용함에 따라 피스톤(1440)이 실린더(1430) 안에서 전후진 왕복 운동을 할 수 있다.As the hydraulic pressure applied to the inside of the cylinder 1430 through the hydraulic port acts on the step surfaces 1444a and 1442a formed by the first large diameter portion 1444 and the second large diameter portion 1442, the piston 1440 acts as a cylinder. It is possible to reciprocate forward and backward within 1430.
따라서, 실린더(1430)에 형성되는 유압 포트나 피스톤(1440)의 단차면(1444a, 1442a)을 적절히 설계함에 따라 단순 피스톤(1440) 왕복뿐만 아니라 피스톤(1440)의 스트로크 거리의 제어도 가능해질 수 있다.Therefore, by properly designing the stepped surfaces 1444a and 1442a of the hydraulic port or the piston 1440 formed in the cylinder 1430, it is possible to control not only the simple piston 1440 but also the stroke distance of the piston 1440. have.
실린더(1430)의 하단과 상단에는 각각 프론트 헤드(1450)와 완충부(1420)가 연결될 수 있다.The front head 1450 and the buffer 1420 may be connected to the lower and upper ends of the cylinder 1430, respectively.
프론트 헤드(1450)에는 치즐(1600)이 걸치는 치즐 핀(미도시)이 마련되며, 치즐(1600)은 치즐 핀(미도시)에 의해 피스톤(1440) 전진 시 피스톤(1440)의 하단에 의해 타격되기 적절한 위치에 배치된다. The front head 1450 is provided with a chisel pin (not shown) on which the chisel 1600 is placed, and the chisel 1600 is hit by the lower end of the piston 1440 when the piston 1440 is advanced by the chisel pin (not shown). Be placed in the proper position.
또한, 프론트 헤드(1450)에는 피스톤(1440)의 왕복 시 외부 이물질이 실린더(1430) 내로 유입되는 것을 방지하기 위한 더스트 프로텍터(미도시)나 타격음을 저감하기 위한 흡음 부재(미도시) 등이 추가로 설치될 수 있다.In addition, the front head 1450 includes a dust protector (not shown) for preventing foreign matter from entering the cylinder 1430 when the piston 1440 is reciprocated, or a sound absorbing member (not shown) for reducing the impact sound. Can be installed as
완충부(1420)는 그 내부에 완충유체실(S)을 가지며, 완충유체실(S)은 피스톤(1440)의 후퇴 시 그 체적이 압축됨에 따라 피스톤(1440)에 적절한 댐핑 효과를 부여할 수 있다.The buffer unit 1420 has a buffer fluid chamber S therein, and the buffer fluid chamber S may impart an appropriate damping effect to the piston 1440 as its volume is compressed when the piston 1440 is retracted. have.
완충부(1420)는 완충유체실(S)에 완충유체를 충전할 수 있도록 완충부(1420)의 일면이 관통되어 형성되는 완충유체 주입구(1402)가 형성될 수 있다.The buffer unit 1420 may have a buffer fluid injection hole 1402 formed by penetrating one surface of the buffer unit 1420 to fill the buffer fluid S with the buffer fluid chamber S.
따라서, 완충유체는 완충유체 주입구(1402)를 통해 완충유체실(S)에 충전될 수 있다.Therefore, the buffer fluid may be filled in the buffer fluid chamber S through the buffer fluid inlet 1402.
완충부(1420)는 실린더(1430)의 상단에 연결되는 구성으로 설명하였으나, 여기에 한정되는 것은 아니며, 완충유체를 이용하여 피스톤(1440)에 적절한 댐핑 효과를 부여할 수 있는 구성이라면, 당업자의 입장에서 그 설치 위치, 형태 등은 다양하게 변경될 수 있다.Although the shock absorbing portion 1420 has been described as a configuration connected to the upper end of the cylinder 1430, the present invention is not limited thereto. From the standpoint, the installation location, shape, etc. can be changed in various ways.
또한, 일례로, 유압식 브레이커(1000)에는 완충부(1420) 상에 완충유체를 충전하는 충전부(1300)를 더 포함할 수 있다.In addition, as an example, the hydraulic breaker 1000 may further include a charging unit 1300 for filling the buffer fluid on the buffer unit 1420.
충전부(1300)는 완충유체를 완충부(1420)의 완충유체실(S)에 공급하는 구성일 수 있다.The charging unit 1300 may be configured to supply a buffer fluid to the buffer fluid chamber S of the buffer unit 1420.
충전부(1300)는 유압식 브레이커(1000)에 설치될 수도 있으나, 여기에 한정되는 것은 아니며, 캐리어(120)에 설치될 수도 있다.The charging unit 1300 may be installed in the hydraulic breaker 1000, but is not limited thereto and may be installed in the carrier 120.
일례로, 충전부(1300)는 실린더(1430)을 포위하는 커버부(1410)와 실린더(1430)사이의 이격공간에 설치될 수도 있다.For example, the charging unit 1300 may be installed in a space between the cover unit 1410 surrounding the cylinder 1430 and the cylinder 1430.
또한, 일례로, 유압식 브레이커(1000)에는 충전부(1300)와 완충부(1420)간의 유체적 연결을 선택적으로 구현 및 차단하는 충전 밸브(1310)가 설치될 수 있다.In addition, as an example, the hydraulic breaker 1000 may be provided with a filling valve 1310 for selectively implementing and blocking a fluid connection between the charging unit 1300 and the buffer unit 1420.
일례로, 충전 밸브(1310)는 완충유체가 충전부(1300)로부터 완충유체실(S)에 도달하는 경로에 설치될 수 있다.For example, the filling valve 1310 may be installed in a path where the buffer fluid reaches the buffer fluid chamber S from the filling part 1300.
일례로, 충전 밸브(1310)는 충전부(1300), 완충유체 주입구(1402) 또는 충전부(1300)로부터 완충유체 주입구(1402) 사이의 경로에 설치될 수 있다.For example, the filling valve 1310 may be installed in a path between the filling unit 1300, the buffer fluid inlet 1402, or the buffer fluid inlet 1402 from the filling unit 1300.
충전 밸브(1310)가 차단위치에 있는 경우 완충유체는 충전부(1300)로부터 완충유체실(S)로 이동될 수 없으며, 충전 밸브(1310)가 연결위치에 있는 경우 완충유체는 충전부(1300)로부터 완충유체실(S)로 이동될 수 있다.When the filling valve 1310 is in the shut-off position, the buffer fluid cannot be moved from the filling part 1300 to the buffer fluid chamber S. When the filling valve 1310 is in the connecting position, the buffer fluid is removed from the filling part 1300. It may be moved to the buffer fluid chamber (S).
이상에서 설명한 유압식 브레이커(1000)의 구성이나 구조는 본 발명에 따른 유압식 브레이커(1000)의 일 실시예에 불과하며, 본 발명에 따른 유압식 브레이커(1000)에는 상술한 구성이나 구조와 다소 상이하더라도 유사한 기능을 갖는 다른 타격 기기 역시 포함되는 것으로 이해되어야 한다.The structure or structure of the hydraulic breaker 1000 described above is only one embodiment of the hydraulic breaker 1000 according to the present invention, and the hydraulic breaker 1000 according to the present invention may be similar to the above-described configuration or structure, although somewhat different. It is to be understood that other striking devices having functions are also included.
본 발명의 실시예에 따른 유압식 브레이커(1000)의 회로도에 관해서는 도 4를 참조하여 설명한다.A circuit diagram of the hydraulic breaker 1000 according to the embodiment of the present invention will be described with reference to FIG. 4.
도 4에 도시한 바와 같이, 실린더(1430)에는 피스톤(1440)이 삽입되며 피스톤(1440)의 하측에는 치즐(1600)이 배치된다.As shown in FIG. 4, a piston 1440 is inserted into the cylinder 1430, and a chisel 1600 is disposed below the piston 1440.
피스톤(1440)에는 소경부(1446), 소경부(1446)의 상측에 위치하는 제1 대경부(1444) 및 소경부(1446)의 하측에 위치하는 제2 대경부(1442)가 형성될 수 있다.The piston 1440 may include the small diameter portion 1446, the first large diameter portion 1444 positioned above the small diameter portion 1446, and the second large diameter portion 1442 positioned below the small diameter portion 1446. have.
제1 대경부(1444) 및 제2 대경부(1442)는 외경이 실린더(1430)의 내경과 실질적으로 동일할 수 있으며, 이에 따라 실린더(1430) 내부에는 실린더(1430)의 하측과 제2 대경부(1442) 사이에 프론트 챔버(1431)가 형성될 수 있고, 실린더(1430)의 상측과 제1 대경부(1444) 사이에 리어 챔버(1432)가 형성될 수 있다.The outer diameter of the first large diameter portion 1444 and the second large diameter portion 1442 may be substantially the same as the inner diameter of the cylinder 1430, and thus, the lower side and the second large portion of the cylinder 1430 may be disposed inside the cylinder 1430. The front chamber 1431 may be formed between the necks 1442, and the rear chamber 1432 may be formed between the upper side of the cylinder 1430 and the first large diameter part 1444.
프론트 챔버(1431)에는 후진 포트(1433)가 형성되며, 후진 포트(1433)는 후진 라인(1433a)을 통해 유압 소스(160)와 연결될 수 있다.A reverse port 1433 is formed in the front chamber 1431, and the reverse port 1433 may be connected to the hydraulic source 160 through the reverse line 1433a.
따라서, 프론트 챔버(1431)에는 유압 소스(160)로부터 후진 라인(1433a)을 거쳐 후진 포트(1433)로 유입되는 작동유에 의해 유압이 인가될 수 있다. Accordingly, hydraulic pressure may be applied to the front chamber 1431 by the hydraulic oil flowing from the hydraulic source 160 through the reverse line 1433a to the reverse port 1433.
프론트 챔버(1431)에 인가된 유압은 제2 대경부(1442)의 단차면(1442a)에 작용하게 되고, 피스톤(1440)에 후진력이 인가될 수 있다.The hydraulic pressure applied to the front chamber 1431 may act on the stepped surface 1442a of the second large diameter portion 1442, and a reverse force may be applied to the piston 1440.
리어 챔버(1432)에는 전진 포트(1434)가 형성되며, 전진 포트(1434)는 전진 라인(1434a)을 통해 제어 밸브(1460)와 연결될 수 있다. A forward port 1434 is formed in the rear chamber 1432, and the forward port 1434 may be connected to the control valve 1460 through the forward line 1434a.
제어 밸브(1460)는 전진 위치(1460-2) 또는 후진 위치(1460-1) 중 어느 하나의 위치로 배치될 수 있으며, 전진 위치(1460-2)에서는 전진 라인(1434a)을 유압 소스(160)로 연결하고, 후진 위치(1460-1)에서는 전진 라인(1434a)을 유압 탱크(160a)로 연결할 수 있다.The control valve 1460 may be disposed in either one of the forward position 1460-2 or the reverse position 1460-1, and the forward position 1460-2 may move the forward line 1434a to the hydraulic source 160. ), And the forward line 1434a may be connected to the hydraulic tank 160a in the reverse position 1460-1.
따라서, 제어 밸브(1460)가 전진 위치(1460-2)에 배치되면 리어 챔버(1432)에는 유압 소스(160)로부터 제어 밸브(1460)와 전진 라인(1434a)을 거쳐 전진 포트(1434)로 유입되는 작동유에 의해 유압이 인가될 수 있다. Therefore, when the control valve 1460 is disposed in the forward position 1460-2, the rear chamber 1432 flows into the forward port 1434 from the hydraulic source 160 via the control valve 1460 and the forward line 1434a. Hydraulic pressure may be applied by the working oil to be.
리어 챔버(1432)에 인가되는 유압은 제1 대경부(1444)의 단차면(1444a)에 작용하게 되고, 피스톤(1440)에 전진력이 인가된다.The hydraulic pressure applied to the rear chamber 1432 acts on the stepped surface 1444a of the first large diameter portion 1444, and a forward force is applied to the piston 1440.
또한, 제어 밸브(1460)가 후진 위치(1460-1)에 배치되면, 리어 챔버(1432)는 전진 라인(1434a)과 제어 밸브(1460)를 거쳐 유압 탱크(160a)로 연결되어, 전진 위치(1460-2)에서 리어 챔버(1432)에 유입된 작동유는 유압 탱크(160a)로 배출된다.In addition, when the control valve 1460 is disposed in the reverse position 1460-1, the rear chamber 1432 is connected to the hydraulic tank 160a via the forward line 1434a and the control valve 1460, and the forward position ( The hydraulic oil introduced into the rear chamber 1432 in 1460-2 is discharged to the hydraulic tank 160a.
이러한 구조에서 제1 대경부(1444)의 단차면(1444a)이 제2 대경부(1442)의 단차면(1442a)보다 큰 면적을 가지고 있어 제어 밸브(1460)가 전진 위치(1460-2)에 배치되면 전진력이 후진력보다 커져 피스톤(1440)이 전진할 수 있다.In this structure, the stepped surface 1444a of the first large diameter portion 1444 has an area larger than the stepped surface 1442a of the second large diameter portion 1442 so that the control valve 1460 is positioned at the forward position 1460-2. When placed, the forward force may be greater than the backward force so that the piston 1440 may advance.
반대로 제어 밸브(1460)가 후진 위치(1460-1)에 배치되면 유압 소스(160)로부터 인가되는 유압이 제2 대경부(1442)의 단차면(1442a)에만 작용하게 되어 피스톤(1440)이 후진할 수 있다. On the contrary, when the control valve 1460 is disposed in the reverse position 1460-1, the hydraulic pressure applied from the hydraulic source 160 acts only on the step surface 1442a of the second large diameter portion 1442 so that the piston 1440 moves backward. can do.
결과적으로 제어 밸브(1460)가 전진 위치(1460-2) 또는 후진 위치(1460-1)에 배치됨에 따라 피스톤(1440)의 왕복 운동이 구현될 수 있다.As a result, the reciprocating motion of the piston 1440 can be implemented as the control valve 1460 is disposed in the forward position 1460-2 or the backward position 1460-1.
일례로, 제어 밸브(1460)의 위치 제어는 유압식으로 이루어질 수 있다.In one example, the position control of the control valve 1460 may be hydraulic.
즉, 제어 밸브(1460)는 입력되는 유압 신호에 따라 전진 위치(1460-2)와 후진 위치(1460-1)가 선택될 수 있는 유압 밸브일 수 있다.That is, the control valve 1460 may be a hydraulic valve in which the forward position 1460-2 and the reverse position 1460-1 may be selected according to the input hydraulic signal.
제어 밸브(1460)의 양단에는 각각 유압 라인에 연결되는 전진 작용면(1464)과 후진 작용면(1462)이 마련될 수 있다. Both ends of the control valve 1460 may be provided with a forward action surface 1464 and a reverse action surface 1462 respectively connected to the hydraulic line.
여기서, 전진 작용면(1464)은 롱 스트로크 라인(1435a)과 숏 스트로크 라인(1436a)으로 분기되는 전진 제어 라인(1464a)과 연결될 수 있다. Here, the forward action surface 1464 may be connected to the forward control line 1464a branched into the long stroke line 1435a and the short stroke line 1434a.
후진 작용면(1462)은 후진 제어 라인(1462a)을 통해 유압 소스(160)에 연결될 수 있다. Reverse action surface 1462 may be connected to hydraulic source 160 via reverse control line 1462a.
이러한 구조에서 전진 작용면(1464)이 후진 작용면(1462)보다 큰 면적을 가지고 있어, 양 작용면에 유압이 함께 인가되면 제어 밸브(1460)는 전진 위치(1460-2)로 배치될 수 있으며 이에 따라 피스톤(1440)이 전진할 수 있다. In this structure, the forward acting surface 1464 has an area larger than the backward acting surface 1462, so that when the hydraulic pressure is applied to both acting surfaces, the control valve 1460 may be disposed at the forward position 1460-2. Accordingly, the piston 1440 may move forward.
반대로 유압 소스(160)로부터 인가되는 유압이 후진 작용면(1462)에만 인가되면 제어 밸브(1460)는 전진 위치(1460-2)로부터 후진 위치(1460-1)로 배치될 수 있으며, 이에 따라 피스톤(1440)이 후진할 수 있다.On the contrary, if the hydraulic pressure applied from the hydraulic source 160 is applied only to the reverse action surface 1462, the control valve 1460 may be disposed from the forward position 1460-2 to the reverse position 1460-1, and thus the piston 1440 may reverse.
롱 스트로크 라인(1435a)은 실린더(1430)에 형성되는 롱 스트로크 포트(1435)로 연결된다. 롱 스트로크 포트(1435)는 피스톤(1440)의 위치에 따라 프론트 챔버(1431)와 연결 또는 차단될 수 있도록 실린더(1430)의 전진 포트(1434)와 후진 포트(1433) 사이에 형성될 수 있다.The long stroke line 1435a is connected to the long stroke port 1435 formed in the cylinder 1430. The long stroke port 1435 may be formed between the forward port 1434 and the reverse port 1433 of the cylinder 1430 to be connected or disconnected from the front chamber 1431 according to the position of the piston 1440.
구체적으로, 롱 스트로크 포트(1435)는 피스톤(1440)이 전진해 제2 대경부(1442)가 롱 스트로크 포트(1435) 상에 있거나 롱 스트로크 포트(1435)보다 하측에 위치하면 프론트 챔버(1431)와의 연결이 차단된다. Specifically, the long stroke port 1435 has a front chamber 1431 when the piston 1440 is advanced so that the second large diameter portion 1442 is on the long stroke port 1435 or located below the long stroke port 1435. The connection with is cut off.
반대로 롱 스트로크 포트(1435)는 피스톤(1440)이 후진해 제2 대경부(1442)가 롱 스트로크 포트(1435)보다 상측에 위치하면 프론트 챔버(1431)와 연결된다.On the contrary, the long stroke port 1435 is connected to the front chamber 1431 when the piston 1440 is backward and the second large diameter portion 1442 is positioned above the long stroke port 1435.
따라서, 롱 스트로크 포트(1435)가 프론트 챔버(1431)와 연결되면, 유압 소스(160)로부터 유압이 후진 라인(1433a), 후진 포트(1433), 프론트 챔버(1431), 롱 스트로크 포트(1435), 롱 스트로크 라인(1435a), 전진 제어 라인(1464a)을 순차적으로 거쳐 전진 작용면(1464)에 인가되어 제어 밸브(1460)가 전진 위치(1460-2)로 배치될 수 있다.Therefore, when the long stroke port 1435 is connected with the front chamber 1431, the hydraulic pressure from the hydraulic source 160 is reverse line 1433a, the reverse port 1433, the front chamber 1431, the long stroke port 1435. The control valve 1460 may be disposed at the forward position 1460-2 by being sequentially applied to the forward action surface 1464 through the long stroke line 1435a and the forward control line 1464a.
숏 스트로크 라인(1436a)은 실린더(1430)에 형성되는 숏 스트로크 포트(1436)로 연결될 수 있다. 숏 스트로크 포트(1436)는 피스톤(1440)의 위치에 따라 프론트 챔버(1431)와 연결 또는 차단될 수 있도록 실린더(1430)의 전진 포트(1434)와 후진 포트(1433) 사이에 형성되되, 롱 스트로크 포트(1435)보다는 후진 포트(1433)에 가까운 위치에 형성될 수 있다.The short stroke line 1436a may be connected to the short stroke port 1434 formed in the cylinder 1430. The short stroke port 1436 is formed between the forward port 1434 and the reverse port 1433 of the cylinder 1430 to be connected to or disconnected from the front chamber 1431 according to the position of the piston 1440, and the long stroke It may be formed at a position closer to the reverse port 1433 than to the port 1435.
구체적으로 숏 스트로크 포트(1436)는 피스톤(1440)이 전진해 제2 대경부(1442)가 숏 스트로크 포트(1436) 상에 있거나 숏 스트로크 포트(1436)보다 전방에 위치하면 프론트 챔버(1431)와의 연결이 차단된다. Specifically, the short stroke port 1434 is in contact with the front chamber 1431 when the piston 1440 is advanced so that the second large diameter portion 1442 is on the short stroke port 1434 or located ahead of the short stroke port 1434. The connection is cut off.
반대로 숏 스트로크 포트(1436)는 피스톤(1440)이 후진해 제2 대경부(1442)가 숏 스트로크 포트(1436)보다 후방에 위치하면 프론트 챔버(1431)와 연결된다.On the contrary, the short stroke port 1434 is connected to the front chamber 1431 when the piston 1440 is backward and the second large diameter portion 1442 is located behind the short stroke port 1434.
여기서, 숏 스트로크 라인(1436a) 상에는 숏 스트로크 라인(1436a)의 단락을 제어하는 변속 밸브(1470)가 설치될 수 있다.Here, a shift valve 1470 may be provided on the short stroke line 1436a to control a short circuit of the short stroke line 1436a.
변속 밸브(1470)는 선택적으로 롱 스트로크 위치(1470-1)와 숏 스트로크 위치(1470-2) 중 어느 하나의 위치로 배치될 수 있으며, 롱 스트로크 위치(1470-1)에서는 숏 스트로크 라인(1436a)을 차단하고 숏 스트로크 위치(1470-2)에서는 숏 스트로크 라인(1436a)을 연결한다.The shift valve 1470 may be selectively disposed at any one of the long stroke position 1470-1 and the short stroke position 1470-2, and the short stroke line 1436a at the long stroke position 1470-1. ) And the short stroke line 1434a is connected at the short stroke position 1470-2.
따라서, 변속 밸브(1470)에 의해 피스톤(1440)의 롱 스트로크 모드 및 숏 스트로크 모드가 결정될 수 있다. Accordingly, the long stroke mode and the short stroke mode of the piston 1440 may be determined by the shift valve 1470.
일례로, 변속 밸브(1470)가 숏 스트로크 위치(1470-2)로 배치되고 제2 대경부(1442)가 숏 스트로크 포트(1436)보다 후방에 위치되어 숏 스트로크 포트(1436)와 프론트 챔버(1431)가 연결된 경우, 작동유는 유압 소스(160), 후진 라인(1433a), 후진 포트(1433), 프론트 챔버(1431), 숏 스트로크 포트(1436), 변속 밸브(1470) 및 전진 작용면(1464)에 순차적으로 도달될 수 있다.In one example, the shift valve 1470 is disposed in the short stroke position 1470-2 and the second large diameter portion 1442 is located behind the short stroke port 1434 such that the short stroke port 1434 and the front chamber 1431 are positioned. Hydraulic fluid is connected to the hydraulic source 160, the reverse line 1433a, the reverse port 1433, the front chamber 1431, the short stroke port 1434, the shift valve 1470, and the forward action surface 1464. Can be reached sequentially.
이러한 구조에 의해 피스톤(1440)은 변속 밸브(1470)의 위치에 따라 선택적으로 롱 스트로크 모드와 숏 스트로크 모드로 왕복 운동을 수행할 수 있다.With this structure, the piston 1440 may selectively perform reciprocating motion in the long stroke mode and the short stroke mode according to the position of the shift valve 1470.
일례로, 변속 밸브(1470)는 콘트롤러(180)에 의해 자동적으로 롱 스트로크 위치(1470-1)와 숏 스트로크 위치(1470-2)간의 전환을 수행할 수도 있으며, 사용자의 선택에 의해 롱 스트로크 위치(1470-1)와 숏 스트로크 위치(1470-2)간의 전환을 수행할 수도 있다.For example, the shift valve 1470 may automatically switch between the long stroke position 1470-1 and the short stroke position 1470-2 by the controller 180, and the long stroke position may be selected by the user. Switching between 1470-1 and the short stroke position 1470-2 may be performed.
유압식 브레이커(1000)는 작동유의 흐름을 선택적으로 차단하는 차단 밸브(1480)를 더 구비할 수 있다.The hydraulic breaker 1000 may further include a shutoff valve 1480 for selectively blocking the flow of the hydraulic oil.
차단 밸브(1480)는 작동유가 이동되는 라인에 설치될 수 있으며, 선택적으로 작동유의 흐름을 허용할 수도 있고, 작동유의 흐름을 차단할 수도 있다.The shutoff valve 1480 may be installed in a line through which the hydraulic oil is moved, and may selectively allow the flow of the hydraulic oil, or block the flow of the hydraulic oil.
일례로, 차단 밸브(1480)는 연결 위치(1480-2)에서 작동유의 흐름을 허용할 수 있고, 차단 위치(1480-1)에서 작동유의 흐름을 차단할 수 있다.In one example, the shutoff valve 1480 may allow the flow of the hydraulic oil in the connecting position (1480-2), and may block the flow of the hydraulic oil in the blocking position (1480-1).
일례로, 차단 밸브(1480)는 전진 제어 라인(1464a) 상에 설치되어 롱 스트로크 포트(1435)로부터 전진 작용면(1464)으로 이동되는 작동유 또는 숏 스트로크 포트(1436)로부터 전진 작용면(1464)으로 이동되는 작동유의 흐름을 허용할 수도 있고, 차단할 수도 있다.In one example, the shutoff valve 1480 is installed on the forward control line 1464a and moves forward from the long stroke port 1435 to the forward action surface 1464 from the hydraulic oil or the short stroke port 1434 to the forward action surface 1464. Allows the flow of hydraulic fluid to be transported to and may be blocked.
만약, 차단 밸브(1480)가 차단 위치(1480-1)에 배치되어 작동유의 흐름을 차단하는 경우, 전진 작용면(1464)으로 유압이 가해지지 않아, 제어 밸브(1460)는 후진 위치(1460-1)로부터 전진 위치(1460-2)로 변환될 수 없다.If the shutoff valve 1480 is disposed at the shutoff position 1480-1 to block the flow of the hydraulic oil, no hydraulic pressure is applied to the forward action surface 1464, so that the control valve 1460 is moved backward. Cannot be converted from 1) to the advance position 1460-2.
따라서, 리어 챔버(1432)에는 후진 위치(1460-1)에 있는 제어 밸브(1460)에 의해 유압 소스(160)로부터 작동유가 공급되지 않아 피스톤(1440)의 왕복 운동이 정지될 수 있다.Accordingly, hydraulic fluid is not supplied from the hydraulic source 160 to the rear chamber 1432 by the control valve 1460 in the reverse position 1460-1, so that the reciprocating motion of the piston 1440 may be stopped.
차단 밸브(1480)의 설치 위치는 위에서 언급한 위치에만 한정되는 것은 아니며, 일례로, 후진 라인(1433a) 상에 설치될 수도 있고, 전진 라인(1434a) 상에도 설치될 수도 있다.The installation position of the shutoff valve 1480 is not limited to the above-mentioned position, but may be installed on the reverse line 1433a or may also be installed on the advance line 1434a.
또한, 차단 밸브(1480)는 유압 소스(160)로부터 작동유가 배출되는 라인에 설치될 수도 있다.In addition, the shutoff valve 1480 may be installed in a line through which hydraulic oil is discharged from the hydraulic source 160.
이 경우, 차단 밸브(1480)가 작동유의 흐름을 차단하는 경우, 유압 소스(160)로부터 실린더(1430)로의 작동유 공급은 차단될 수 있다.In this case, when the shutoff valve 1480 blocks the flow of the hydraulic oil, the hydraulic oil supply from the hydraulic source 160 to the cylinder 1430 may be interrupted.
이하에서는, 압력 센서(150)를 이용하여 완충유체의 누출을 감지하도록 완충유체 누출을 모니터링하는 기술에 대해 설명하겠다.Hereinafter, a description will be given of a technique for monitoring the buffer fluid leak to detect the leak of the buffer fluid using the pressure sensor 150.
완충유체실(S) 상에 충전된 완충유체는 완충유체 주입구(1402) 또는 완충부(1420)와 피스톤(1440) 사이의 틈새를 통해 완충유체실(S)로부터 누출될 수 있다.The buffer fluid filled on the buffer fluid chamber S may leak from the buffer fluid chamber S through a gap between the buffer fluid inlet 1402 or the buffer unit 1420 and the piston 1440.
완충유체가 누출되는 경우, 피스톤(1440)이 실린더(1430) 상에서 상승되는 이동에 대해 적절한 댐핑을 할 수 없어, 피스톤(1440)이 파손될 수 있다.If the buffer fluid leaks, the piston 1440 may not be able to properly dampen the movement ascending on the cylinder 1430, and the piston 1440 may be damaged.
또한, 완충유체가 누출되는 경우, 피스톤(1440)이 전진할 때, 피스톤(1440)은 완충유체의 압력에 의한 충분한 가속도를 가질 수 없다.In addition, when the buffer fluid leaks, when the piston 1440 is advanced, the piston 1440 may not have sufficient acceleration due to the pressure of the buffer fluid.
이러한, 완충유체의 누출 문제를 해결하고자, 유압식 브레이커(1000)에는 완충부(1420) 상의 완충유체에 대한 압력정보를 감지하는 압력 센서(150)가 설치될 수 있다.In order to solve such a problem of leakage of the buffer fluid, the hydraulic breaker 1000 may be provided with a pressure sensor 150 for detecting pressure information on the buffer fluid on the buffer 1420.
일례로, 유압식 브레이커(1000)에는 송신 모듈(미 도시)이 더 설치될 수 있다.For example, the hydraulic breaker 1000 may be further provided with a transmission module (not shown).
일례로, 송신 모듈은 콘트롤러(180)에 압력정보를 출력하는 구성일 수 있다.In one example, the transmission module may be configured to output pressure information to the controller 180.
일례로, 송신 모듈은 압력 센서(150)로부터 감지된 압력정보를 압력 센서(150)로부터 전달받아 콘트롤러(180)에 전달할 수 있는 구성일 수 있다.For example, the transmission module may be configured to receive the pressure information sensed by the pressure sensor 150 from the pressure sensor 150 and transmit the received pressure information to the controller 180.
일례로, 송신 모듈은 유선 통신으로 압력정보를 압력 센서(150)로부터 콘트롤러(180)에 출력할 수도 있으며, 무선 통신으로 압력정보를 압력 센서(150)로부터 콘트롤러(180)에 출력할 수도 있다.For example, the transmission module may output pressure information from the pressure sensor 150 to the controller 180 through wired communication, or output pressure information from the pressure sensor 150 to the controller 180 through wireless communication.
송신 모듈의 무선 통신의 대표적인 예로는 블루투스 로에너지(BTLE, BlueTooth Low Energy)나 직비(Zigbee)를 들 수 있다. 압력 센서(150)와 콘트롤러(180) 간의 통신이 높은 대역폭을 요구하는 것은 아니므로 BTLE나 직비와 같은 저전력 통신이 바람직할 수 있다. Representative examples of wireless communication of the transmission module may include Bluetooth Low Energy (BTLE) or Zigbee. Since communication between the pressure sensor 150 and the controller 180 does not require a high bandwidth, low power communication such as BTLE or direct rain may be desirable.
그렇다고 하여 본 발명에서 콘트롤러(180)와 압력 센서(150) 간의 통신 방식이 꼭 이로 한정되는 것은 아니다.However, in the present invention, the communication method between the controller 180 and the pressure sensor 150 is not necessarily limited thereto.
콘트롤러(180)는 감지된 압력정보에 기초하여 완충부(1420)의 완충유체 누출여부를 판단할 수 있다.The controller 180 may determine whether the buffer fluid leaks from the buffer 1420 based on the detected pressure information.
일례로, 콘트롤러(180)는 완충유체 누출된 것으로 판단하는 경우 경고 동작을 수행할 수 있다.For example, the controller 180 may perform a warning operation when it is determined that the buffer fluid leaks.
일례로, 콘트롤러(180)는 각종 전자 신호를 처리하고 연산하는 역할을 수행하는 전자 회로로, 압력 센서(150)로부터 압력 정보 또는 신호를 수신하고, 정보/데이터를 연산 처리하며, 전자 신호로 유압식 브레이커(1000) 및 건설 장비의 다른 구성을 제어할 수 있다.For example, the controller 180 is an electronic circuit that processes and calculates various electronic signals. The controller 180 receives pressure information or a signal from the pressure sensor 150, calculates and processes information / data, and uses hydraulic pressure as an electronic signal. It is possible to control the breaker 1000 and other configurations of construction equipment.
콘트롤러(180)는 통상적으로 캐리어(120)에 위치하지만, 유압식 브레이커(1000)에 위치하는 것도 가능하다. The controller 180 is typically located on the carrier 120, but may also be located on the hydraulic breaker 1000.
또한, 콘트롤러(180)가 반드시 단일 객체로 구현되어야만 하는 것도 아니다. In addition, the controller 180 does not necessarily need to be implemented as a single object.
경우에 따라서 콘트롤러(180)는 서로 통신 가능한 복수의 콘트롤러(180)로 구현될 수 있다.In some cases, the controller 180 may be implemented as a plurality of controllers 180 that can communicate with each other.
예를 들어, 콘트롤러(180)는 그 일부가 유압식 브레이커(1000) 측에 설치되어 있고 다른 일부가 캐리어(120)에 설치되는 등과 같이 분산 배치되어 있을 수 있으며, 분산 배치된 콘트롤러(180) 간에는 무선/유선 통신을 수행하여 협업함으로써 그 기능을 수행할 수 있다. For example, the controller 180 may be distributedly disposed such that a part thereof is installed on the hydraulic breaker 1000 side and the other part is installed on the carrier 120, and the controller 180 is wirelessly distributed between the distributed controllers 180. You can do that by collaborating by performing wired communication.
일례로, 다수의 콘트롤러(180)가 분산 배치되는 경우에는 그 일부는 슬레이브 타입으로 단순히 신호나 정보만을 전달하는 역할을 하고 다른 일부가 마스터 타입으로 각종 신호나 정보를 수신하여 처리/연산 및 명령/제어를 수행하는 방식을 취할 수도 있다.For example, when a plurality of controllers 180 are distributed, some of them simply transmit signals or information to a slave type, and others receive various signals or information to a master type to process / operate and command / It may also take the form of performing control.
콘트롤러(180)에 대한 설명은 아래에서 스크래치 모니터링 시스템을 설명할 때, 더욱 자세히 설명하겠다.The controller 180 will be described in more detail when describing the scratch monitoring system below.
도 5에 도시한 바와 같이, 일례로, 압력 센서(150)는 완충부(1420) 상에 설치될 수 있다.As shown in FIG. 5, as an example, the pressure sensor 150 may be installed on the buffer unit 1420.
일례로, 압력 센서(150)는 완충부(1420)의 내면(1421)에 설치될 수 있다.For example, the pressure sensor 150 may be installed on the inner surface 1421 of the shock absorbing portion 1420.
따라서, 압력 센서(150)는 완충유체실(S) 상의 압력에 대한 정보를 감지할 수 있다.Therefore, the pressure sensor 150 may detect information about the pressure on the buffer fluid chamber S.
나아가, 일례로, 송신 모듈은 완충부(1420)의 내면(1421)에 설치될 수 있다.Further, as an example, the transmission module may be installed on the inner surface 1421 of the buffer unit 1420.
나아가, 일례로, 완충부(1420)에는 피스톤(1440)의 상하 이동에 대한 위치정보를 감지하는 위치 센서(200)가 더 설치될 수 있다.Further, as an example, the buffer unit 1420 may be further provided with a position sensor 200 for detecting the position information for the vertical movement of the piston 1440.
일례로, 위치 센서(200)는 완충부(1420)의 내면(1421)에 설치될 수 있다.For example, the position sensor 200 may be installed on the inner surface 1421 of the buffer 1420.
완충부(1420)는 피스톤(1440) 사이에 충분한 부피의 완충유체실(S)을 형성할 수 있으며, 압력 센서(150), 위치 센서(200) 및 송신 모듈은 완충부(1420)의 완충유체실(S) 상에 설치되되, 완충유체실(S) 상에서 왕복 운동하는 피스톤(1440)과 접촉하지 않는 위치에 설치될 수 있다. The buffer unit 1420 may form a buffer fluid chamber S having a sufficient volume between the pistons 1440, and the pressure sensor 150, the position sensor 200, and the transmission module may buffer the buffer fluid of the buffer unit 1420. Is installed on the chamber (S), it may be installed in a position not in contact with the piston 1440 reciprocating on the buffer fluid chamber (S).
또한, 압력 센서(150), 위치 센서(200) 및 송신 모듈은 완충부(1420)의 내면(1421) 상에 설치된다는 점에서, 완충부(1420)의 외부와 단절될 수 있다.In addition, since the pressure sensor 150, the position sensor 200, and the transmission module are installed on the inner surface 1421 of the shock absorbing portion 1420, the pressure sensor 150, the position sensor 200, and the transmission module may be disconnected from the outside of the shock absorbing portion 1420.
이를 보다 자세히 설명하자면, 만약, 압력 센서(150), 위치 센서(200) 및 송신 모듈을 설치하기 위해 완충부(1420)를 관통하는 개구를 형성하고, 그 개구 상에 압력 센서(150), 위치 센서(200) 및 송신 모듈을 설치하는 경우, 압력 센서(150), 위치 센서(200) 및 송신 모듈과 개구를 형성하는 완충부(1420) 사이에 틈새가 존재하여, 완충유체가 그 틈새를 통해 누출되는 문제가 발생될 수 있다.To explain this in more detail, if the pressure sensor 150, the position sensor 200 and the transmission module to form an opening through the buffer unit 1420, the pressure sensor 150, the position on the opening In the case of installing the sensor 200 and the transmission module, a gap exists between the pressure sensor 150, the position sensor 200, and the shock absorbing portion 1420 that forms the opening with the transmitting module, so that the buffer fluid passes through the gap. Leaking problems can occur.
따라서, 이러한 문제를 해결하고자, 압력 센서(150), 위치 센서(200) 및 송신 모듈 전체는 완충부(1420)의 내면(1421) 상에, 즉, 완충유체실(S) 상에 설치될 수 있으며, 그 결과 완충부(1420)의 외부와 단절될 수 있다.Therefore, in order to solve this problem, the pressure sensor 150, the position sensor 200 and the entire transmission module may be installed on the inner surface 1421 of the shock absorbing portion 1420, that is, on the shock absorbing fluid chamber (S). As a result, it may be disconnected from the outside of the buffer unit 1420.
여기서, 송신 모듈은 콘트롤러(180)와 무선통신을 통해 압력정보, 위치정보 등을 콘트롤러(180)로 송신할 수 있다.Here, the transmitting module may transmit pressure information, location information, etc. to the controller 180 through wireless communication with the controller 180.
나아가, 완충부(1420)의 내면(1421)에는 압력 센서(150), 송신 모듈 또는 위치 센서(200)에 전력을 공급하도록 무선으로 전력이 충전될 수 있는 전력충전부(1300)(미 도시)가 더 설치될 수 있다.Further, the inner surface 1421 of the buffer unit 1420 has a power charging unit 1300 (not shown) that can be charged wirelessly to supply power to the pressure sensor 150, the transmission module or the position sensor 200. More can be installed.
전력충전부(1300)는 압력 센서(150), 송신 모듈 또는 위치 센서(200)에 각각 필요한 전력을 무선 또는 유선 방식으로 공급할 수 있으며, 충전부(1300)의 외부에 설치되는 전력충전기기(미 도시)로부터 무선 방식으로 전력을 공급받을 수 있다.The power charger 1300 may supply power required for each of the pressure sensor 150, the transmission module, or the position sensor 200 in a wireless or wired manner, and a power charger (not shown) installed outside the charging unit 1300. Can be powered in a wireless manner.
그 결과, 완충부(1420)는 압력 센서(150), 송신 모듈 또는 위치 센서(200)를 배치 및 구동하기 위한 별도의 개구를 형성할 필요가 없으며, 압력 센서(150), 송신 모듈 또는 위치 센서(200)는 완충부(1420)의 외부와 단절되어 있다는 점에서, 완충유체실(S) 상의 완충유체의 누출 방지를 보다 효과적으로 구현할 수 있다. As a result, the shock absorbing portion 1420 does not need to form a separate opening for positioning and driving the pressure sensor 150, the transmission module or the position sensor 200, and the pressure sensor 150, the transmission module or the position sensor. 200 is disconnected from the outside of the buffer unit 1420, it is possible to more effectively implement the prevention of leakage of the buffer fluid on the buffer fluid chamber (S).
이하에서는, 압력 센서(150) 및 콘트롤러(180)를 이용하여 완충유체의 누출을 모니터링할 수 있는 완충유체 모니터링 시스템에 대해서 더 자세히 설명하겠다.Hereinafter, the buffer fluid monitoring system that can monitor the leakage of the buffer fluid using the pressure sensor 150 and the controller 180 will be described in more detail.
완충유체 모니터링 시스템은, 상술한 유압식 브레이커(1000)의 완충부(1420) 상에 충전된 완충유체의 누출에 대한 모니터링을 구현하는 시스템이다.The buffer fluid monitoring system is a system for implementing monitoring of the leakage of the buffer fluid filled on the buffer unit 1420 of the hydraulic breaker 1000 described above.
예를 들어, 완충유체 모니터링 시스템은 상술한 압력 센서(150)에서 감지된 압력정보를 이용하여 완충유체 누출 발생에 관한 모니터링을 수행할 수 있다. 또 모니터링 결과 완충유체의 누출이 발생한 경우에는 경고 동작 등을 수행할 수도 있다.For example, the buffer fluid monitoring system may monitor the occurrence of the buffer fluid leak using the pressure information sensed by the pressure sensor 150 described above. In addition, in the event of a leakage of buffer fluid as a result of monitoring, a warning operation may be performed.
여기서, 완충유체 모니터링 시스템은 압력 센서(150) 및 콘트롤러(180)를 포함할 수 있으며, 콘트롤러(180)는 압력 센서(150)로부터 감지된 압력정보에 기초하여 미리 정해진 조건을 만족하는 경우, 완충유체의 누출이 발생한 것으로 판단하고 경고 동작을 수행할 수 있다.Here, the buffer fluid monitoring system may include a pressure sensor 150 and the controller 180, the controller 180 is buffered when the predetermined condition is satisfied based on the pressure information sensed from the pressure sensor 150 A leak of fluid may be determined and a warning action may be performed.
미리 정해진 조건은 완충부(1420) 상의 완충유체가 누출되었는지 여부를 판단하는 기준조건일 수 있다.The predetermined condition may be a reference condition for determining whether the buffer fluid on the buffer unit 1420 has leaked.
일례로, 콘트롤러(180)는 압력 센서(150)로부터 감지된 압력정보 또는 압력정보를 기초로 연산/변환된 데이터가 미리 정해진 조건을 만족하는 경우 완충유체의 누출이 발생한 것으로 판단할 수 있고, 미리 정해진 조건을 만족하지 않는 경우 완충유체의 누출이 발생하지 않은 것으로 판단할 수 있다. For example, the controller 180 may determine that a leakage of the buffer fluid occurs when the data calculated / converted based on the pressure information or the pressure information detected from the pressure sensor 150 satisfies a predetermined condition. If the specified conditions are not met, it may be determined that no leakage of the buffer fluid occurs.
미리 정해진 조건은, 사용자에 의해 설정될 수도 있으며, 완충유체가 누출되지 않은 정상적인 상태 또는/및 완충유체의 누출이 발생한 상태에서 압력 센서(150)로부터 획득한 압력정보를 기초로 설정될 수도 있다.The predetermined condition may be set by the user or may be set based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks.
또한, 완충유체 누출 모니터링 시스템은 영상 또는 음성을 출력하는 출력 모듈(190)을 더 포함할 수 있다.In addition, the buffer fluid leakage monitoring system may further include an output module 190 for outputting an image or audio.
출력 모듈(190)은 예를 들어 주로 영상을 출력하는 영상 출력 모듈(190) 또는 음성을 출력하는 음성 출력 모듈(190)로 구현될 수 있다. The output module 190 may be implemented as, for example, an image output module 190 that mainly outputs an image or an audio output module 190 that outputs an audio.
물론, 둘 이외에 사용자에게 정보를 전달하는 다양한 출력 장치들이 출력 모듈(190)로 채택될 수 있다. Of course, in addition to the two, various output devices for transmitting information to the user may be adopted as the output module 190.
출력 모듈(190)은 사용자에게 영상 또는 음성을 직접 출력할 수도 있으며, 사용자에게 영상 또는 음성을 직접 출력하는 다른 기기에 영상/음성 신호를 전송하는 usb 포트 등을 아우르는 구성일 수 있다.The output module 190 may directly output an image or an audio to a user, and may be configured to include a USB port for transmitting an image / audio signal to another device that directly outputs an image or an audio to a user.
출력 모듈(190)은 영상 또는 음성을 출력하여 사용자에서 완충유체 누출 발생에 대한 경고 메시지를 출력할 수 있는 구성일 수 있다.The output module 190 may be a component capable of outputting an image or an audio to output a warning message for occurrence of a buffer fluid leakage.
일례로, 출력 모듈(190)은 브레이커(1000)에 설치될 수도 있고, 캐리어(120)에 설치될 수도 있다.For example, the output module 190 may be installed in the breaker 1000 or may be installed in the carrier 120.
일례로, 콘트롤러(180)는 출력 모듈(190)을 통해 사용자에게 완충유체 누출 발생에 대한 경고 메시지를 출력하도록 출력 모듈(190)을 제어할 수 있다.For example, the controller 180 may control the output module 190 to output a warning message about occurrence of a buffer fluid leakage to the user through the output module 190.
콘트롤러(180)와 출력 모듈(190)은 유선 통신 또는 무선 통신이 가능할 수 있다.The controller 180 and the output module 190 may enable wired communication or wireless communication.
여기서, 일례로, 도 6에 도시한 바와 같이, 미리 정해진 조건은 압력정보의 최고압력(P4)이 소정의 기준압력(P1, P2) 이하인 조건일 수 있다.Here, as an example, as shown in FIG. 6, the predetermined condition may be a condition in which the maximum pressure P4 of the pressure information is equal to or less than the predetermined reference pressures P1 and P2.
일례로, 압력정보의 최고압력(P4)은 피스톤(1440)의 왕복운동에 따라 변화되는 완충유체실(S)의 압력 중 최고값을 가지는 압력(P4)을 의미할 수 있다.For example, the maximum pressure P4 of the pressure information may mean a pressure P4 having the highest value among the pressures of the buffer fluid chamber S that is changed according to the reciprocating motion of the piston 1440.
완충유체실(S)의 완충유체가 누출되는 경우, 압력정보의 최고압력(P4)은 낮아지게 되며, 따라서, 압력정보의 최고압력(P4)이 소정의 기준압력(P1, P2) 이하인 경우, 콘트롤러(180)는 완충유체의 누출이 발생한 것으로 판단할 수 있다.When the buffer fluid in the buffer fluid chamber S leaks, the maximum pressure P4 of the pressure information is lowered. Therefore, when the maximum pressure P4 of the pressure information is equal to or less than the predetermined reference pressures P1 and P2, The controller 180 may determine that leakage of the buffer fluid has occurred.
소정의 기준압력(P1, P2)은 사용자에 의해 설정될 수도 있으며, 완충유체가 누출되지 않은 정상적인 상태 또는/및 완충유체의 누출이 발생한 상태에서 압력 센서(150)로부터 획득한 압력정보를 기초로 설정될 수도 있다.The predetermined reference pressures P1 and P2 may be set by the user and are based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks. It may be set.
또한, 일례로, 미리 정해진 조건은 압력정보의 최소압력(P5)이 소정의 기준압력(P3) 이하인 조건일 수 있다.Also, as an example, the predetermined condition may be a condition in which the minimum pressure P5 of the pressure information is equal to or less than the predetermined reference pressure P3.
일례로, 압력정보의 최소압력(P5)은 피스톤(1440)의 왕복운동에 따라 변화되는 완충유체실(S)의 압력 중 최소값을 가지는 압력(P5)을 의미할 수 있다.For example, the minimum pressure P5 of the pressure information may mean a pressure P5 having a minimum value among the pressures of the buffer fluid chamber S that are changed according to the reciprocating motion of the piston 1440.
완충유체실(S)의 완충유체가 누출되는 경우, 압력정보의 최소압력(P5)은 낮아지게 되며, 따라서, 압력정보의 최소압력(P5)이 소정의 기준압력(P3) 이하인 경우, 콘트롤러(180)는 완충유체의 누출이 발생한 것으로 판단할 수 있다.When the buffer fluid in the buffer fluid chamber S leaks, the minimum pressure P5 of the pressure information is lowered. Therefore, when the minimum pressure P5 of the pressure information is lower than or equal to the predetermined reference pressure P3, the controller ( 180 may determine that the leakage of the buffer fluid has occurred.
또한, 일례로, 미리 정해진 조건은 피스톤(1440)의 왕복 운동 상태에서, 압력정보의 최고압력(P4)이 소정의 기준압력(P1, P2) 이하인 빈도가 소정의 기준빈도 이상인 조건일 수 있다.Also, for example, the predetermined condition may be a condition in which the frequency at which the maximum pressure P4 of the pressure information is equal to or less than the predetermined reference pressures P1 and P2 in the reciprocating motion of the piston 1440 is equal to or greater than the predetermined reference frequency.
일례로, 압력정보의 압력변화는 피스톤(1440)의 왕복운동에 따라 반복될 수 있다.For example, the pressure change of the pressure information may be repeated according to the reciprocating motion of the piston 1440.
이를 보다 자세히 설명하자면, 피스톤(1440)이 실린더(1430) 상에서 하측 방향으로 전진 운동을 하는 경우 압력정보의 압력은 낮아질 수 있고, 피스톤(1440)이 실린더(1430) 상에서 상측 방향으로 후진운동을 하는 경우 압력정보의 압력은 높아질 수 있으며, 이러한 압력정보의 압력변화는 피스톤(1440)의 왕복운동에 의해 반복될 수 있다.More specifically, when the piston 1440 moves forward in the downward direction on the cylinder 1430, the pressure of the pressure information may be lowered, and the piston 1440 moves backward in the upward direction on the cylinder 1430. In this case, the pressure of the pressure information may be increased, and the pressure change of the pressure information may be repeated by the reciprocating motion of the piston 1440.
여기서, 피스톤(1440)의 후진운동이 3회 반복되는 경우, 압력정보의 최고압력(P4)은 3회 반복되어 감지될 수 있다.Here, when the backward movement of the piston 1440 is repeated three times, the highest pressure P4 of the pressure information may be repeated three times and sensed.
반복되어 감지된 압력정보의 최고압력(P4)이 소정의 기준압력(P1, P2) 이하인 빈도가 소정의 기준빈도 이상인 경우, 콘트롤러(180)는 완충유체가 누출된 것으로 판단할 수 있다.When the frequency at which the maximum pressure P4 of the repeatedly detected pressure information is less than or equal to the predetermined reference pressures P1 and P2 is greater than or equal to the predetermined reference frequency, the controller 180 may determine that the buffer fluid is leaked.
일례로, 소정의 기준빈도가 3회이며, 압력정보의 최고압력(P4)이 소정의 기준압력(P1, P2) 이하인 것이 적어도 연속하여 3회 이상으로 감지된 경우, 콘트롤러(180)는 완충유체가 누출된 것으로 판단할 수 있다.For example, when the predetermined reference frequency is three times, and the maximum pressure P4 of the pressure information is detected at least three times in succession at least three times or less in the predetermined reference pressures P1 and P2, the controller 180 buffers the fluid. Can be judged to have leaked.
또한, 일례로, 미리 정해진 조건은 피스톤(1440)의 왕복 운동 상태에서, 압력정보의 최소압력(P5)이 소정의 기준압력 이하(P3)인 빈도가 소정의 기준빈도 이상인 조건일 수도 있다.Also, as an example, the predetermined condition may be a condition in which the frequency at which the minimum pressure P5 of the pressure information is less than or equal to the predetermined reference pressure P3 in the reciprocating motion of the piston 1440 is equal to or greater than the predetermined reference frequency.
소정의 기준빈도는 사용자에 의해 설정될 수도 있으며, 완충유체가 누출되지 않은 정상적인 상태 또는/및 완충유체의 누출이 발생한 상태에서 압력 센서(150)로부터 획득한 압력정보를 기초로 설정될 수도 있다.The predetermined reference frequency may be set by the user, or may be set based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks.
또한, 일례로, 미리 정해진 조건은 압력정보의 압력 변화값(ΔP)이 소정의 기준압력 변화값 이상인 조건일 수 있다.Also, as an example, the predetermined condition may be a condition in which the pressure change value ΔP of the pressure information is equal to or greater than a predetermined reference pressure change value.
만약, 완충유체의 누출이 발생한 경우, 피스톤(1440)의 상하 운동에 의해 완충유체실(S)의 압력 변화값(ΔP)은 커질 수 있다.If leakage of the buffer fluid occurs, the pressure change value ΔP of the buffer fluid chamber S may increase due to the vertical movement of the piston 1440.
따라서, 압력정보의 압력 변화값(ΔP)을 기초로 하여, 콘트롤러(180)는 완충유체의 누출 여부를 판단할 수 있다.Therefore, based on the pressure change value ΔP of the pressure information, the controller 180 may determine whether the buffer fluid leaks.
일례로, 압력 변화값(ΔP)은 최고압력(P4)과 최소압력(P5)의 차이일 수 있으며, 압력 변화값(ΔP)이 소정의 기준압력 변화값 이상인 경우, 콘트롤러(180)는 완충유체의 누출이 발생하였다고 판단할 수 있다.For example, the pressure change value ΔP may be a difference between the highest pressure P4 and the minimum pressure P5. When the pressure change value ΔP is equal to or greater than a predetermined reference pressure change value, the controller 180 may buffer the fluid. It can be judged that a leak has occurred.
소정의 기준압력 변화값은 사용자에 의해 설정될 수도 있으며, 완충유체가 누출되지 않은 정상적인 상태 또는/및 완충유체의 누출이 발생한 상태에서 압력 센서(150)로부터 획득한 압력정보를 기초로 설정될 수도 있다.The predetermined reference pressure change value may be set by the user and may be set based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks. have.
또한, 일례로, 미리 정해진 조건은 피스톤(1440)의 왕복 운동 상태에서, 압력정보의 압력 변화값(ΔP)이 소정의 기준압력 변화값 이상인 빈도가 소정의 기준 빈도 이상인 조건일 수 있다.In addition, as an example, the predetermined condition may be a condition in which the frequency of the pressure change value ΔP of the pressure information is equal to or greater than the predetermined reference pressure change value in the reciprocating state of the piston 1440.
일례로, 압력정보의 압력변화는 피스톤(1440)의 왕복운동에 따라 반복될 수 있으며, 반복되어 감지된 압력 변화값(ΔP)의 기준압력 변화값 이상인 빈도가 소정의 기준 빈도 이상인 경우, 콘트롤러(180)는 완충유체가 누출된 것으로 판단할 수 있다.For example, the pressure change of the pressure information may be repeated according to the reciprocating motion of the piston 1440. When the frequency that is equal to or greater than the reference pressure change value of the repeatedly detected pressure change value ΔP is equal to or greater than a predetermined reference frequency, the controller ( 180 may determine that the buffer fluid has leaked.
또한, 일례로, 미리 정해진 조건은, 완충부(1420)를 기준으로 피스톤(1440)이 위치하는 소정의 위치에서의 압력정보의 압력이 소정의 기준압력(P1, P2) 이하인 조건일 수 있다.In addition, as an example, the predetermined condition may be a condition that the pressure of the pressure information at a predetermined position where the piston 1440 is located with respect to the buffer unit 1420 is equal to or less than the predetermined reference pressures P1 and P2.
이를 보다 자세히 설명하자면, 완충유체의 누출여부를 판단하는 기초로 사용되는 압력정보의 압력은 피스톤(1440)이 완충부(1420) 상의 소정의 위치에 위치하였을 때의 압력일 수 있다.In more detail, the pressure of the pressure information used as a basis for determining whether the buffer fluid is leaked may be the pressure when the piston 1440 is located at a predetermined position on the buffer unit 1420.
일례로, 압력정보의 압력은 최고압력(P4)과 최소압력(P5) 사이의 소정의 압력일 수 있다.For example, the pressure of the pressure information may be a predetermined pressure between the highest pressure P4 and the minimum pressure P5.
일례로, 피스톤(1440)의 상단은 완충부(1420)의 완충유체실(S) 상에서 왕복 운동할 수 있다. For example, the upper end of the piston 1440 may reciprocate on the buffer fluid chamber S of the buffer unit 1420.
여기서, 도 5에 도시한 바와 같이, 피스톤(1440)의 상단이 완충부(1420) 내에서 왕복 운동함에 따라 정의되는 피스톤(1440)의 상단의 최상측 지점(K1)과 완충부(1420)의 최하측 지점(K2)의 사이의 소정의 위치(K3)에 위치하였을 때, 그 때의 압력정보의 압력이 소정의 기준압력(P1, P2) 이하인 조건인 경우, 콘트롤러(180)는 완충유체의 누출이 발생한 것으로 판단할 수 있다.Here, as shown in FIG. 5, the uppermost point K1 and the shock absorbing portion 1420 of the upper end of the piston 1440 defined as the upper end of the piston 1440 reciprocates in the shock absorbing portion 1420. When located at the predetermined position K3 between the lowest points K2, when the pressure of the pressure information at that time is equal to or less than the predetermined reference pressures P1 and P2, the controller 180 is connected to the buffer fluid. It can be determined that a leak has occurred.
도 7에 도시한 바와 같이, 1점 쇄선은 피스톤(1440)이 완충부(1420) 상에서 왕복 운동함에 따라, 위치 센서(200)로부터 감지되는 위치정보에 관한 신호일 수 있으며. 실선은 압력 센서(150)로부터 감지되는 압력정보에 관한 신호일 수 있다.As illustrated in FIG. 7, the dashed-dotted line may be a signal relating to position information detected from the position sensor 200 as the piston 1440 reciprocates on the buffer unit 1420. The solid line may be a signal regarding pressure information detected from the pressure sensor 150.
일례로, 도 5에서의 피스톤(1440)의 위치는 피스톤(1440)의 상단이 완충부(1420) 상에서 전진되어 최하지점에 도달된 것을 나타낸다.For example, the position of the piston 1440 in FIG. 5 indicates that the upper end of the piston 1440 is advanced on the buffer portion 1420 to reach the lowest point.
여기서, 위치 센서(200)는 피스톤(1440)을 감지하지 못할 수 있다.Here, the position sensor 200 may not detect the piston 1440.
만약, 도 5에 도시된 피스톤(1440)의 위치 상태에서 피스톤(1440)의 상단이 완충부(1420) 상에서 후진되어 최상지점(K1)에 도달되는 경우, 위치 센서(200)는 소정의 시점(t1)부터 피스톤(1440)을 감지할 수 있다.If the upper end of the piston 1440 is reversed on the shock absorbing portion 1420 and reaches the highest point K1 in the position state of the piston 1440 shown in FIG. 5, the position sensor 200 may have a predetermined time ( From t1), the piston 1440 may be detected.
즉, 도 7에 도시한 바와 같이, 위치 센서(200)로부터 감지되는 위치정보에 관한 신호는 특정 시점(t1-t2)에서 피스톤(1440)을 감지할 수 있고, 다른 특정 시점(0-t1, t2-t3)에서는 피스톤(1440)을 감지할 수 없다.That is, as shown in FIG. 7, the signal related to the position information detected from the position sensor 200 may detect the piston 1440 at a specific time point t1-t2, and the other specific time point 0-t1, At t2-t3), the piston 1440 cannot be detected.
이러한, 위치정보를 이용하여, 콘트롤러(180)는 피스톤(1440)이 소정의 시점에서 전진하는지 후진하는지 여부 및 피스톤(1440)의 위치를 파악할 수 있다.By using the position information, the controller 180 can determine whether the piston 1440 moves forward or backward at a predetermined time point and the position of the piston 1440.
여기서, 압력정보의 압력은, 피스톤(1440)의 상단이 완충부(1420) 내에서 왕복 운동함에 따라 정의되는 피스톤(1440)의 상단의 최상측 지점(K1)과 완충부(1420)의 최하측 지점(K2)의 사이의 소정의 위치(K3)에서, 피스톤(1440)의 상단이 전진할 때의 압력일 수 있다.Here, the pressure of the pressure information, the uppermost point (K1) of the upper end of the piston 1440 is defined as the upper end of the piston 1440 reciprocating in the shock absorbing portion 1420 and the lowest side of the shock absorbing portion 1420 At a predetermined position K3 between the points K2, it may be the pressure when the upper end of the piston 1440 is advanced.
일례로, 피스톤(1440)의 상단의 최상측 지점(K1)과 완충부(1420)의 최하측 지점(K2)의 사이의 소정의 위치(K3)는 위치 센서(200)가 피스톤(1440)의 위치를 감지하지 못하는 시점(t2)에서의 위치일 수 있으며, 피스톤(1440)의 상단이 전진할 때 소정의 위치(K3)에 도달하는 순간(t2), 그 때(t2)의 압력 센서(150)로부터 감지되는 압력(P6)이 미리 정해진 조건을 만족하는지 여부를 판단하는데 이용되는 데이터일 수 있다.For example, the predetermined position K3 between the uppermost point K1 of the upper end of the piston 1440 and the lowermost point K2 of the shock absorbing part 1420 may be a position sensor 200 of the piston 1440. It may be a position at a time point t2 at which the position is not sensed, and at the moment t2 when the upper end of the piston 1440 reaches the predetermined position K3, the pressure sensor 150 at that time t2 It may be data used to determine whether the pressure (P6) detected from the () satisfies a predetermined condition.
피스톤(1440)의 상단이 전진하는 시점에서는, 피스톤(1440)의 전진 운동이 완충부(1420)의 완충유체의 압력에 의해 전진되고, 또한, 작동유가 리어 챔버(1432)에 유입되어 작동유의 압력으로 전진된다는 점에서, 콘트롤러(180)는 피스톤(1440)의 상단이 전진할 때의 압력정보를 기초로 보다 정확히 완충유체의 누출을 판단할 수 있다.At the time when the upper end of the piston 1440 is advanced, the forward movement of the piston 1440 is advanced by the pressure of the buffer fluid of the shock absorbing portion 1420, and the hydraulic fluid flows into the rear chamber 1432 to provide the pressure of the hydraulic oil. The controller 180 can more accurately determine the leakage of the buffer fluid based on the pressure information when the upper end of the piston 1440 is advanced.
또한, 일례로, 미리 정해진 조건은 완충부(1420)를 기준으로 피스톤(1440)이 위치하는 소정의 위치에서의 압력정보의 압력 변화값(ΔP)이 소정의 기준압력 변화값 이상인 조건일 수 있다.Also, as an example, the predetermined condition may be a condition in which the pressure change value ΔP of the pressure information at a predetermined position where the piston 1440 is located with respect to the buffer unit 1420 is equal to or greater than a predetermined reference pressure change value. .
일례로, 압력 변화값(ΔP)은 최고압력(P4)과 피스톤(1440)의 상단이 위치 센서(200)로부터 감지되지 않는 위치(K3)로 변하는 시점(t2)에서의 압력(P6)간의 차이일 수 있다.For example, the pressure change value ΔP is the difference between the highest pressure P4 and the pressure P6 at the time point t2 at which the upper end of the piston 1440 changes to a position K3 which is not detected from the position sensor 200. Can be.
또한, 일례로, 압력정보의 압력 변화값(ΔP)은 피스톤(1440)의 상단이 소정의 위치(K3)에서 전진할 때의 압력 변화값(ΔP)일 수 있다.Also, as an example, the pressure change value ΔP of the pressure information may be a pressure change value ΔP when the upper end of the piston 1440 advances at a predetermined position K3.
즉, 압력정보의 압력 변화값(ΔP)은 피스톤(1440)의 상단이 전진되어 위치 센서(200)로부터 감지되지 않는 위치(K3)로 변하는 시점(t2)에서의 순간변화율(접선의 기울기)일 수 있다.That is, the pressure change value ΔP of the pressure information is an instantaneous rate of change (inclination of the tangent line) at the time t2 at which the upper end of the piston 1440 is advanced and changes to a position K3 which is not detected by the position sensor 200. Can be.
이하에서는, 콘트롤러(180)가 완충유체의 누출이 발생한 것으로 판단하는 경우, 콘트롤러(180)가 구현하는 기능에 대해서 자세히 설명하겠다.Hereinafter, when the controller 180 determines that leakage of the buffer fluid has occurred, a function implemented by the controller 180 will be described in detail.
콘트롤러(180)는 완충유체의 누출이 발생한 것으로 판단하는 경우 출력 모듈(190)을 통해 경고 메시지를 출력할 수 있다.If it is determined that the leakage of the buffer fluid has occurred, the controller 180 may output a warning message through the output module 190.
또한, 일례로, 콘트롤러(180)는 완충유체의 누출이 발생한 것으로 판단하는 경우 피스톤(1440)의 왕복 운동을 정지시킬 수 있다.In addition, as an example, the controller 180 may stop the reciprocating motion of the piston 1440 when it is determined that the leakage of the buffer fluid occurs.
또한, 일례로, 도 6에 도시한 바와 같이, 콘트롤러(180)는 압력정보의 압력이 제1 압력(P1) 이상인 경우 출력 모듈(190)을 통해 사용자에게 경고 메시지를 출력할 수 있으며, 압력정보의 압력이 제1 압력(P1)보다 작은 제2 압력(P2) 이하인 경우 피스톤(1440)의 왕복 운동을 정지시킬 수 있다.In addition, as an example, as shown in FIG. 6, the controller 180 may output a warning message to the user through the output module 190 when the pressure of the pressure information is equal to or greater than the first pressure P1, and the pressure information. When the pressure is less than or equal to the second pressure P2 smaller than the first pressure P1, the reciprocating motion of the piston 1440 may be stopped.
즉, 콘트롤러(180)는, 완충유체의 누출 발생 정도가 경고 수준인 경우 출력 모듈(190)을 통해 사용자에게 이러한 사실을 알릴 수 있으며, 완충유체의 누출 발생 정도가 경고 수준 이상인 경우 사용자의 별도 조작 없이도 피스톤(1440)의 왕복 운동을 정지시킬 수 있다.That is, the controller 180 may notify the user of the fact through the output module 190 when the leaking degree of the buffer fluid is at a warning level, and the user's separate operation when the leaking degree of the buffer fluid is at or above the warning level. Without it, the reciprocating motion of the piston 1440 can be stopped.
그 결과, 콘트롤러(180)는 완충유체의 누출에 따른 피스톤(1440)의 파손을 미연에 방지할 수 있다.As a result, the controller 180 can prevent damage to the piston 1440 due to leakage of the buffer fluid.
일례로, 콘트롤러(180)는 스크래치가 발생한 것으로 판단하는 경우 차단 밸브(1480)가 작동유의 흐름을 차단하도록 차단 밸브(1480)를 제어할 수 있다.For example, when it is determined that the scratch has occurred, the controller 180 may control the shutoff valve 1480 such that the shutoff valve 1480 blocks the flow of the working oil.
일례로, 콘트롤러(180)가 차단 밸브(1480)를 제어하지 않는 경우, 차단 밸브(1480)는 연결 위치(1480-2) 상태에 있으며, 콘트롤러(180)가 차단 밸브(1480)를 제어하는 경우 차단 밸브(1480)는 연결 위치(1480-2)로부터 차단 위치(1480-1)로 변경될 수 있다.For example, when the controller 180 does not control the shutoff valve 1480, the shutoff valve 1480 is in a connection position 1480-2, and when the controller 180 controls the shutoff valve 1480. The shutoff valve 1480 may be changed from the connecting position 1480-2 to the blocking position 1480-1.
즉, 콘트롤러(180)는 차단 밸브(1480)가 연결 위치(1480-2)로부터 차단 위치(1480-1)로 변경될 수 있도록 제어할 수 있으며, 그 결과 차단 밸브(1480)는 작동유의 흐름을 차단할 수 있다.That is, the controller 180 may control the shutoff valve 1480 to be changed from the connection position 1480-2 to the shutoff position 1480-1, and as a result, the shutoff valve 1480 controls the flow of hydraulic oil. You can block.
앞서 설명한 바와 같이, 차단 밸브(1480)가 콘트롤러(180)의 제어에 의해 연결 위치(1480-2)로부터 차단 위치(1480-1)로 변환된 경우, 제어 밸브(1460)는 후진 위치에서 지속적으로 유지되며, 그 결과, 유압 소스(160)의 작동유는 리어 챔버(1432)에 유입될 수 없어 피스톤(1440)의 왕복 운동이 구현되지 않을 수 있다.As described above, when the shutoff valve 1480 is converted from the coupling position 1480-2 to the shutoff position 1480-1 by the control of the controller 180, the control valve 1460 is continuously in the reverse position. As a result, the hydraulic oil of the hydraulic source 160 may not flow into the rear chamber 1432 so that the reciprocating motion of the piston 1440 may not be implemented.
또한, 일례로, 콘트롤러(180)는 유압 소스(160)를 제어하여 유압 소스(160)가 브레이커(1000)로 작동유를 공급하는 상태인 on상태 및 유압 소스(160)가 브레이커(1000)로 작동유를 공급하지 않는 상태인 off상태로 제어할 수 있다.Also, as an example, the controller 180 controls the hydraulic pressure source 160 so that the hydraulic pressure source 160 supplies hydraulic oil to the breaker 1000, and the hydraulic pressure source 160 actuates the breaker 1000. It can be controlled to off state without supplying.
즉, 콘트롤러(180)는 스크래치가 발생한 것으로 판단하는 경우, 유압 소스(160)를 제어하여 작동유가 브레이커(1000)에 공급되지 않도록 제어할 수도 있다.That is, when the controller 180 determines that the scratch has occurred, the controller 180 may control the hydraulic source 160 to prevent the hydraulic oil from being supplied to the breaker 1000.
일례로, 콘트롤러(180)는 완충유체의 누출이 발생한 것으로 판단하는 경우 변속 밸브(1470)를 제어하여 피스톤(1440)의 왕복 운동을 제어할 수 있다.For example, the controller 180 may control the shift valve 1470 to control the reciprocating motion of the piston 1440 when it is determined that leakage of the buffer fluid occurs.
일례로, 콘트롤러(180)는, 피스톤(1440)이 롱 스트로크 상태에서 완충유체의 누출이 발생한 것으로 판단하는 경우 변속 밸브(1470)를 제어하여 피스톤(1440)이 숏 스트로크 상태로 변경되도록 제어할 수 있으며, 피스톤(1440)이 숏 스트로크 상태에서 완충유체의 누출이 발생한 것으로 판단하는 경우 차단 밸브(1480)를 제어하여 피스톤(1440)을 정지시킬 수 있다.For example, the controller 180 may control the piston 1440 to change to the short stroke state by controlling the shift valve 1470 when the piston 1440 determines that the leakage of the buffer fluid occurs in the long stroke state. When the piston 1440 determines that the leakage of the buffer fluid occurs in the short stroke state, the piston 1440 may be stopped by controlling the shutoff valve 1480.
콘트롤러(180)는 변속 밸브(1470) 및 차단 밸브(1480)를 순차적으로 제어하여, 피스톤(1440)이 롱 스트로크인 경우 순차적으로 숏 스트로크로 변경하고 숏 스트로크에서 다시 정지시킬 수도 있다.The controller 180 may sequentially control the shift valve 1470 and the shutoff valve 1480, so that when the piston 1440 is a long stroke, the controller 180 may sequentially change to a short stroke and stop again at the short stroke.
사용자는 콘트롤러(180)의 제어에 의해 피스톤(1440)의 왕복 운동 상태가 변경됨으로서 완충유체의 누출이 발생되었음을 인지할 수 있다.The user may recognize that the leakage of the buffer fluid has occurred by changing the reciprocating state of the piston 1440 by the control of the controller 180.
일례로, 콘트롤러(180)의 경고 동작은 출력 모듈(190)을 통해 사용자에게 경고 메시지를 출력하는 동작 및/또는 피스톤(1440)의 왕복 운동 상태를 변경하는 동작을 의미할 수 있다.For example, the warning operation of the controller 180 may mean an operation of outputting a warning message to the user through the output module 190 and / or changing the reciprocating motion state of the piston 1440.
나아가, 콘트롤러(180)는 충전 밸브(1310)를 제어하여 완충유체를 완충부(1420)에 충전할 수도 있다.Furthermore, the controller 180 may control the filling valve 1310 to fill the buffer fluid in the buffer 1420.
일례로, 콘트롤러(180)는 완충유체의 누출이 발생한 것으로 판단하는 경우 피스톤(1440)의 왕복 운동을 정지시키고, 그 후 충전부(1300)가 완충부(1420) 상에 완충유체를 충전하도록 충전 밸브(1310)를 제어하여 차단위치로부터 연결위치로 변경되도록 하며, 완충유체의 충전으로 인해 압력정보의 압력이 소정의 완충압력에 도달하는 경우, 완충부(1420) 상에 더 이상의 완충유체가 충전되는 것을 차단하도록 충전 밸브(1310)를 제어하여 연결위치로부터 차단위치로 변경되도록 할 수 있다.For example, the controller 180 stops the reciprocating motion of the piston 1440 when it is determined that leakage of the buffer fluid has occurred, and then the filling part 1300 fills the buffer fluid on the buffer part 1420. The control unit 1310 is changed from the blocking position to the connecting position, and when the pressure information of the pressure information reaches a predetermined buffering pressure due to the filling of the buffering fluid, further buffering fluid is filled on the buffering unit 1420. The filling valve 1310 may be controlled to block the change from the connection position to the blocking position.
일례로, 콘트롤러(180)는 작업자의 조작 없이도 압력정보의 압력이 제2 압력(P2) 이하인 경우, 피스톤(1440)의 왕복 운동을 정지시키고, 충전 밸브(1310)를 제어하여 소정의 완충압력에 도달할 때까지 완충부(1420) 상에 완충유체를 충전할 수 있다.For example, when the pressure of the pressure information is equal to or less than the second pressure P2 without the operator's operation, the controller 180 stops the reciprocating motion of the piston 1440 and controls the filling valve 1310 to a predetermined buffer pressure. The buffer fluid may be filled on the buffer unit 1420 until it is reached.
소정의 완충압력은 사용자에 의해 설정될 수도 있으며, 완충유체가 누출되지 않은 정상적인 상태 또는/및 완충유체의 누출이 발생한 상태에서 압력 센서(150)로부터 획득한 압력정보를 기초로 설정될 수도 있다.The predetermined buffer pressure may be set by the user, or may be set based on pressure information obtained from the pressure sensor 150 in a normal state in which the buffer fluid does not leak and / or in a state in which the buffer fluid leaks.
이하에서는 완충유체 모니터링 방법에 대해 설명하겠다.Hereinafter, the buffer fluid monitoring method will be described.
완충유체 모니터링 방법은 실린더(1430) 내에서 피스톤(1440)의 왕복 운동에 따라 치즐(1600)이 대상물을 타격하는 단계(S10), 완충유체를 이용하여 피스톤(1440)의 이동을 완충하는 완충부(1420)의 내면(1421)에 제공되는 압력 센서(150)가 피스톤(1440)이 완충부(1420) 상에서 이동될 때 완충부(1420) 상의 압력정보를 감지하는 단계(S20) 및 콘트롤러(180)가 감지된 압력정보에 기초하여 미리 정해진 조건을 만족하는 경우 완충유체의 누출이 발생한 것으로 판단하고 경고 동작을 수행하는 단계(S30)를 포함할 수 있다.In the buffer fluid monitoring method, the chisel 1600 hits an object according to the reciprocating motion of the piston 1440 in the cylinder 1430 (S10). The buffer part buffers the movement of the piston 1440 using the buffer fluid. The pressure sensor 150 provided on the inner surface 1421 of the 1420 detects the pressure information on the shock absorbing portion 1420 when the piston 1440 is moved on the shock absorbing portion 1420 (S20) and the controller 180. ) Satisfies a predetermined condition based on the detected pressure information, and may determine that the leakage of the buffer fluid has occurred and perform a warning operation (S30).
앞서 언급한 바와 같이, 본 발명의 기술적 사상을 구현하기 위해, 도 8에 도시한 바와 같이, 콘트롤러(180)와 압력 센서(150), 위치 센서(200), 차단 밸브(1480), 변속 밸브(1470), 충전 밸브(1310) 및 출력 모듈(190) 간은 유선 통신 또는 무선 통신이 가능하며, 콘트롤러(180)의 제어에 의해 차단 밸브(1480), 변속 밸브(1470), 충전 밸브(1310) 및 출력 모듈(190)은 제어될 수 있다. As mentioned above, in order to realize the technical idea of the present invention, as shown in FIG. 8, the controller 180, the pressure sensor 150, the position sensor 200, the shutoff valve 1480, and the shift valve ( 1470, the filling valve 1310 and the output module 190 are capable of wired communication or wireless communication, and are controlled by the controller 180 to block the valve 1480, the shift valve 1470, and the filling valve 1310. And the output module 190 may be controlled.
또한, 소정의 기준압력(P1, P2, P3), 소정의 기준압력 변화값 등은 입력부(195)에 의해 입력될 수도 있으며, 콘트롤러(180)가 완충유체가 누출되지 않은 정상적인 상태 또는/및 완충유체의 누출이 발생한 상태에서 압력 센서(150)로부터 획득한 압력정보를 기초로 설정할 수도 있다.In addition, the predetermined reference pressure (P1, P2, P3), the predetermined reference pressure change value, etc. may be input by the input unit 195, the controller 180 is a normal state or buffer buffer fluid does not leak or It may be set based on the pressure information obtained from the pressure sensor 150 in the state of the fluid leakage.
또한, 소정의 기준압력(P1, P2, P3), 소정의 기준압력 변화값 등은 온도센서(미도시)로부터 측정된 온도에 기초하여 콘트롤러(180)가 완충유체가 누출되지 않은 정상적인 상태 또는/및 완충유체의 누출이 발생한 상태에서 압력 센서(150)로부터 획득한 압력정보를 기초로 설정될 수도 있다.In addition, the predetermined reference pressure (P1, P2, P3), the predetermined reference pressure change value, etc. is a normal state in which the controller 180 does not leak the buffer fluid based on the temperature measured from a temperature sensor (not shown) or / And it may be set based on the pressure information obtained from the pressure sensor 150 in the state of leakage of the buffer fluid.
완충유체의 압력은 온도의 변화에 따라 달라질 수 있다는 점에서, 소정의 기준압력(P1, P2, P3), 소정의 기준압력 변화값 등은 온도센서(미도시)로부터 측정된 충전부(1300) 상의 온도 및/또는 외부의 온도에 기초하여 설정될 수 있다.Since the pressure of the buffer fluid may vary according to the change in temperature, the predetermined reference pressures P1, P2, and P3, the predetermined reference pressure change value, and the like are measured on the charging unit 1300 measured from a temperature sensor (not shown). It may be set based on temperature and / or external temperature.
상기에서는 본 발명에 따른 실시예를 기준으로 본 발명의 구성과 특징을 설명하였으나 본 발명은 이에 한정되지 않으며, 본 발명의 사상과 범위 내에서 다양하게 변경 또는 변형할 수 있음은 본 발명이 속하는 기술분야의 당업자에게 명백한 것이며, 따라서 이와 같은 변경 또는 변형은 첨부된 특허청구범위에 속함을 밝혀둔다.In the above description of the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art that such changes or modifications fall within the scope of the appended claims.

Claims (20)

  1. 복수의 유압 포트가 구비되는 실린더;A cylinder having a plurality of hydraulic ports;
    상기 유압 포트를 통해 유입 또는 배출되는 작동유의 유압에 의해 상기 실린더 내에서 왕복 운동하는 피스톤;A piston reciprocating in the cylinder by the hydraulic pressure of the hydraulic oil flowing in or out through the hydraulic port;
    완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부;A buffer for buffering the movement of the piston using a buffer fluid;
    상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 압력 센서; 및A pressure sensor for sensing pressure information on the buffer when the piston is moved on the buffer; And
    감지된 상기 압력정보에 기초하여 상기 완충부의 완충유체 누출여부를 판단하고 완충유체가 누출된 것으로 판단하는 경우 경고 동작을 수행하는 콘트롤러에 상기 압력정보를 출력하는 송신 모듈;을 포함하는, And a transmitting module for determining whether the buffer fluid leaks based on the sensed pressure information, and outputting the pressure information to a controller that performs a warning operation when it is determined that the buffer fluid leaks.
    유압식 브레이커.Hydraulic breaker.
  2. 제1항에 있어서,The method of claim 1,
    상기 압력 센서 및 상기 송신 모듈은,The pressure sensor and the transmission module,
    상기 완충부의 내면에 설치되어 상기 완충부의 외부와 단절되는,Installed on the inner surface of the buffer portion is disconnected from the outside of the buffer portion,
    유압식 브레이커.Hydraulic breaker.
  3. 제2항에 있어서,The method of claim 2,
    상기 완충부의 내면에 설치되며, 상기 완충부 상에서 이동되는 상기 피스톤의 위치정보를 감지하는 위치 센서;를 더 포함하는,A position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston moving on the shock absorber;
    유압식 브레이커.Hydraulic breaker.
  4. 제3항에 있어서,The method of claim 3,
    상기 완충부의 내면에 설치되며, 상기 압력 센서, 상기 송신 모듈 또는 상기 위치 센서에 전력을 공급하도록 무선으로 전력이 충전될 수 있는 전력충전부;를 더 포함하는,A power charging unit installed on an inner surface of the buffer unit and configured to wirelessly charge power to supply power to the pressure sensor, the transmission module, or the position sensor;
    유압식 브레이커.Hydraulic breaker.
  5. 복수의 유압 포트가 구비되는 실린더, 상기 유압 포트를 통해 유입 또는 배출되는 작동유의 유압에 의해 상기 실린더 내에서 왕복 운동하는 피스톤 및 완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부를 구비하는 유압식 브레이커의 완충유체 누출을 모니터링하는 완충유체 모니터링 시스템에 있어서, Hydraulic breaker having a cylinder having a plurality of hydraulic ports, a piston for reciprocating in the cylinder by the hydraulic pressure of the hydraulic fluid introduced or discharged through the hydraulic port and a buffer for buffering the movement of the piston by using a buffer fluid A buffer fluid monitoring system for monitoring a buffer fluid leak of
    상기 완충부의 내면에 설치되며, 상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 압력 센서; 및A pressure sensor installed on an inner surface of the buffer part and configured to sense pressure information on the buffer part when the piston is moved on the buffer part; And
    감지된 상기 압력정보에 기초하여 미리 정해진 조건을 만족하는 경우, 완충유체의 누출이 발생한 것으로 판단하고 경고 동작을 수행하는 콘트롤러;를 포함하는,When the controller satisfies a predetermined condition based on the sensed pressure information, the controller determines that the leakage of the buffer fluid has occurred and performs a warning operation;
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  6. 제5항에 있어서,The method of claim 5,
    상기 미리 정해진 조건은,The predetermined condition is
    상기 압력정보의 최고압력이 소정의 기준압력 이하인 조건인,The condition that the maximum pressure of the pressure information is less than a predetermined reference pressure,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  7. 제6항에 있어서,The method of claim 6,
    상기 미리 정해진 조건은,The predetermined condition is
    상기 피스톤의 왕복 운동 상태에서,In the reciprocating state of the piston,
    상기 압력정보의 상기 최고압력이 상기 기준압력 이하인 빈도가 소정의 기준빈도 이상인 조건인,Wherein the frequency at which the maximum pressure of the pressure information is less than or equal to the reference pressure is a condition of more than a predetermined reference frequency,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  8. 제5항에 있어서,The method of claim 5,
    상기 미리 정해진 조건은,The predetermined condition is
    상기 압력정보의 압력 변화값이 소정의 기준압력 변화값 이상인 조건인,Wherein the pressure change value of the pressure information is a condition equal to or greater than a predetermined reference pressure change value,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  9. 제8항에 있어서,The method of claim 8,
    상기 미리 정해진 조건은,The predetermined condition is
    상기 피스톤의 왕복 운동 상태에서,In the reciprocating state of the piston,
    상기 압력정보의 상기 압력 변화값이 상기 기준압력 변화값 이상인 빈도가 소정의 기준 빈도 이상인 조건인,Wherein the frequency of the pressure change value of the pressure information is equal to or greater than the reference pressure change value is a condition of a predetermined reference frequency or more,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  10. 제5항에 있어서,The method of claim 5,
    상기 완충부의 내면에 설치되며, 상기 완충부 상에서 이동되는 상기 피스톤의 위치정보를 감지하는 위치 센서;를 더 포함하고,A position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston moving on the shock absorber;
    상기 미리 정해진 조건은,The predetermined condition is
    상기 완충부를 기준으로 상기 피스톤이 위치하는 소정의 위치에서의 상기 압력정보의 압력이 소정의 기준압력 이하인 조건인,A condition in which the pressure of the pressure information at a predetermined position where the piston is located on the basis of the buffer part is equal to or less than a predetermined reference pressure;
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  11. 제10항에 있어서,The method of claim 10,
    상기 압력정보의 압력은,The pressure of the pressure information,
    상기 피스톤의 상단이 상기 완충부 내에서 왕복 운동함에 따라 정의되는 상기 피스톤의 상단의 최상측 지점과 상기 완충부의 최하측 지점의 사이의 소정의 위치에서,At a predetermined position between the uppermost point of the upper end of the piston and the lowermost point of the shock absorbing portion defined as the upper end of the piston reciprocates in the shock absorbing portion,
    상기 피스톤의 상단이 전진할 때의 압력인,Which is the pressure when the upper end of the piston advances,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  12. 제5항에 있어서,The method of claim 5,
    상기 완충부의 내면에 설치되며, 상기 완충부 상에서 이동되는 상기 피스톤의 위치정보를 감지하는 위치 센서;를 더 포함하고,A position sensor installed on an inner surface of the shock absorber and configured to sense position information of the piston moving on the shock absorber;
    상기 미리 정해진 조건은,The predetermined condition is
    상기 완충부를 기준으로 상기 피스톤이 위치하는 소정의 위치에서의 상기 압력정보의 압력 변화값이 소정의 기준압력 변화값 이상인 조건인,A condition where the pressure change value of the pressure information at a predetermined position where the piston is located on the basis of the buffer part is a predetermined reference pressure change value or more;
    완충유체 모니터링 시스템. Buffer fluid monitoring system.
  13. 제12항에 있어서,The method of claim 12,
    상기 압력정보의 압력 변화값은,The pressure change value of the pressure information,
    상기 피스톤의 상단이 상기 완충부 내에서 왕복 운동함에 따라 정의되는 상기 피스톤의 상단의 최상측 지점과 상기 완충부의 최하측 지점의 사이의 소정의 위치에서,At a predetermined position between the uppermost point of the upper end of the piston and the lowermost point of the shock absorbing portion defined as the upper end of the piston reciprocates in the shock absorbing portion,
    상기 피스톤의 상단이 전진할 때의 압력 변화값인,Which is a pressure change value when the upper end of the piston is advanced,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  14. 제5항에 있어서,The method of claim 5,
    영상 또는 음성을 출력하는 출력 모듈;을 더 포함하고,An output module for outputting an image or an audio;
    상기 콘트롤러는, The controller,
    완충유체의 누출이 발생한 것으로 판단하는 경우 상기 출력 모듈을 통해 경고 메시지를 출력하는,If it is determined that the leakage of the buffer fluid occurred to output a warning message through the output module,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  15. 제5항에 있어서,The method of claim 5,
    상기 콘트롤러는, The controller,
    완충유체의 누출이 발생한 것으로 판단하는 경우 상기 피스톤의 왕복 운동을 정지시키는,When it is determined that the leakage of the buffer fluid has occurred, stopping the reciprocating motion of the piston,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  16. 제15항에 있어서,The method of claim 15,
    - 상기 유압식 브레이커는, 상기 피스톤의 전진운동을 위하여 유압 소스와 상기 실린더의 리어 챔버를 연결하거나 또는 상기 실린더의 리어 챔버로부터 상기 작동유를 배출하는 제어 밸브 및 상기 작동유의 흐름을 선택적으로 차단하는 차단 밸브를 더 구비함 -The hydraulic breaker is a control valve for connecting the hydraulic source and the rear chamber of the cylinder for the forward movement of the piston or for selectively shutting off the flow of the hydraulic oil and a control valve for discharging the hydraulic oil from the rear chamber of the cylinder. With more-
    상기 콘트롤러는,The controller,
    완충유체의 누출이 발생한 것으로 판단하는 경우 상기 차단 밸브가 상기 작동유의 흐름을 차단하도록 상기 차단 밸브를 제어하는,When it is determined that the leakage of the buffer fluid has occurred, the shutoff valve controls the shutoff valve to block the flow of the working oil,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  17. 제16항에 있어서,The method of claim 16,
    - 상기 차단 밸브는, 상기 제어 밸브로 향하는 상기 작동유의 흐름을 선택적으로 차단함 - The shutoff valve selectively shuts off the flow of the hydraulic oil to the control valve;
    상기 콘트롤러는,The controller,
    완충유체의 누출이 발생한 것으로 판단하는 경우 상기 차단 밸브가 상기 작동유의 흐름을 차단하도록 상기 차단 밸브를 제어하는,When it is determined that the leakage of the buffer fluid has occurred, the shutoff valve controls the shutoff valve to block the flow of the working oil,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  18. 제5항에 있어서,The method of claim 5,
    영상 또는 음성을 출력하는 출력 모듈;을 더 포함하고,An output module for outputting an image or an audio;
    상기 콘트롤러는, The controller,
    상기 압력정보의 최고압력이 제1 압력 이하인 경우 상기 출력 모듈을 통해 경고 메시지를 출력하고, Outputting a warning message through the output module when the maximum pressure of the pressure information is less than or equal to a first pressure,
    상기 압력정보의 최고압력이 상기 제1 압력보다 작은 제2 압력 이하인 경우 상기 피스톤의 왕복 운동을 정지시키는,When the maximum pressure of the pressure information is less than the second pressure less than the first pressure to stop the reciprocating motion of the piston,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  19. 제18항에 있어서,The method of claim 18,
    상기 완충부 상에 완충유체를 충전하는 충전부; 및 A charging unit filling a buffer fluid on the buffer unit; And
    상기 충전부와 상기 완충부간의 유체적 연결을 선택적으로 구현 및 차단하는 충전 밸브;를 더 포함하며,And a filling valve for selectively implementing and blocking a fluid connection between the charging unit and the buffer unit.
    상기 콘트롤러는,The controller,
    상기 피스톤의 왕복 운동을 정지시킨 후,After stopping the reciprocating motion of the piston,
    상기 충전부가 상기 완충부 상에 완충유체를 충전하도록 상기 충전 밸브를 제어하며,The filling unit controls the filling valve to fill the buffer fluid on the buffer unit,
    완충유체의 충전으로 인해 상기 압력정보의 압력이 소정의 완충압력에 도달하는 경우 상기 완충부 상에 완충유체가 충전되는 것을 차단하도록 상기 충전 밸브를 제어하는,When the pressure of the pressure information due to the filling of the buffer fluid reaches a predetermined buffer pressure to control the filling valve to block the filling of the buffer fluid on the buffer portion,
    완충유체 모니터링 시스템.Buffer fluid monitoring system.
  20. 실린더 내에서 피스톤의 왕복 운동에 따라 치즐이 대상물을 타격하는 단계;The chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder;
    완충유체를 이용하여 상기 피스톤의 이동을 완충하는 완충부의 내면에 제공되는 압력 센서가 상기 피스톤이 상기 완충부 상에서 이동될 때 상기 완충부 상의 압력정보를 감지하는 단계; 및Detecting, by a pressure sensor provided on an inner surface of the buffer part for buffering the movement of the piston using a buffer fluid, pressure information on the buffer part when the piston is moved on the buffer part; And
    콘트롤러가 감지된 상기 압력정보에 기초하여 미리 정해진 조건을 만족하는 경우 완충유체의 누출이 발생한 것으로 판단하고 경고 동작을 수행하는 단계;를 포함하는,If the controller satisfies a predetermined condition based on the sensed pressure information, it is determined that the leakage of the buffer fluid has occurred and performing a warning operation; including,
    완충유체 모니터링 방법.Buffer fluid monitoring method.
PCT/KR2017/001777 2017-02-10 2017-02-17 Hydraulic breaker, buffer fluid monitoring system and buffer fluid monitoring method WO2018147492A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170018975A KR101870072B1 (en) 2017-02-10 2017-02-10 A hydraulic breaker, buffering fluid monitoring system and buffering fluid monitoring method
KR10-2017-0018975 2017-02-10

Publications (1)

Publication Number Publication Date
WO2018147492A1 true WO2018147492A1 (en) 2018-08-16

Family

ID=62768290

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/001777 WO2018147492A1 (en) 2017-02-10 2017-02-17 Hydraulic breaker, buffer fluid monitoring system and buffer fluid monitoring method

Country Status (2)

Country Link
KR (1) KR101870072B1 (en)
WO (1) WO2018147492A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108953476A (en) * 2018-09-04 2018-12-07 徐州徐工矿山机械有限公司 A kind of crusher counterpunch board buffer hydraulic system and its control method
CN110005015A (en) * 2019-05-07 2019-07-12 徐州徐工挖掘机械有限公司 A kind of the quartering hammer control system and control method of double gear frequency modulation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH055603A (en) * 1991-06-27 1993-01-14 Mazda Motor Corp Stroke detector of piston
JP2544726Y2 (en) * 1991-02-28 1997-08-20 株式会社小松製作所 Abnormality detection device for impact ripper
JPH1025769A (en) * 1996-07-11 1998-01-27 Hitachi Constr Mach Co Ltd Piping oil-leakage preventive device for hydraulic driving device
KR20040095120A (en) * 2003-05-06 2004-11-12 이일재 Hydraulic percussion device
KR20160078716A (en) * 2014-12-24 2016-07-05 현대중공업 주식회사 Boom cylinder control system for excavator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101451110B1 (en) * 2013-01-30 2014-10-15 삼보건설기계 주식회사 Diagnosis unit of oil pressure equipment for test unit for construction machine
KR20150036848A (en) * 2013-09-30 2015-04-08 지성중공업 주식회사 3-stroke auto hydraulic

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2544726Y2 (en) * 1991-02-28 1997-08-20 株式会社小松製作所 Abnormality detection device for impact ripper
JPH055603A (en) * 1991-06-27 1993-01-14 Mazda Motor Corp Stroke detector of piston
JPH1025769A (en) * 1996-07-11 1998-01-27 Hitachi Constr Mach Co Ltd Piping oil-leakage preventive device for hydraulic driving device
KR20040095120A (en) * 2003-05-06 2004-11-12 이일재 Hydraulic percussion device
KR20160078716A (en) * 2014-12-24 2016-07-05 현대중공업 주식회사 Boom cylinder control system for excavator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108953476A (en) * 2018-09-04 2018-12-07 徐州徐工矿山机械有限公司 A kind of crusher counterpunch board buffer hydraulic system and its control method
CN110005015A (en) * 2019-05-07 2019-07-12 徐州徐工挖掘机械有限公司 A kind of the quartering hammer control system and control method of double gear frequency modulation
CN110005015B (en) * 2019-05-07 2023-06-06 徐州徐工挖掘机械有限公司 Breaking hammer control system and control method for double-gear frequency modulation

Also Published As

Publication number Publication date
KR101870072B1 (en) 2018-06-22

Similar Documents

Publication Publication Date Title
WO2018021642A1 (en) Hydraulic hammer and construction apparatus comprising same
WO2018021643A1 (en) Method for monitoring hydraulic hammer, and system performing same
WO2018147492A1 (en) Hydraulic breaker, buffer fluid monitoring system and buffer fluid monitoring method
WO2014142562A1 (en) Hydraulic system for construction machine
WO2015115730A1 (en) Washing machine and wash water supplying device
WO2011111959A2 (en) Container security apparatus
WO2012044138A2 (en) Excavation system using a water jet, and excavation method using the same
CN107107976A (en) Head, Remote Control Vehicle and remote control delivery system
WO2010143826A2 (en) Method for absorbing a vehicle impact using kinetic friction force and rolling force produced by the dragging of a surface of rolled tube, and vehicle impact absorbing apparatus using same
WO2019177261A1 (en) Muscular strength assistant apparatus performing protection operation for driving system
WO2018147491A1 (en) Hydraulic breaker, hydraulic fluid monitoring system and hydraulic fluid monitoring method
WO2012124952A2 (en) Durability testing device according to desert climate
WO2017171215A1 (en) Lock and home appliance having the same
WO2018074852A1 (en) Robot vacuum cleaner
WO2017034199A1 (en) Robot cleaner
EP3340848A1 (en) Robot cleaner
WO2021230434A1 (en) Hair dryer
WO2018074735A1 (en) Method for automatic replacement of casing and drill pipe and drilling machine comprising same
WO2014081053A1 (en) Apparatus and method for controlling preferential function of construction machine
WO2019022265A1 (en) Hydraulic striking device
WO2022015032A1 (en) Inkjet multi-wavelength curing machine
WO2019194327A1 (en) Wafer storage container
WO2018147490A1 (en) Hydraulic breaker, scratch monitoring system and scratch monitoring method
WO2015152434A1 (en) Control device for confluence flow rate of working device for construction machinery and control method therefor
EP3949444A1 (en) Display apparatus

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17895643

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17895643

Country of ref document: EP

Kind code of ref document: A1