CN115971389A - Novel full-hydraulic follow-up hammer - Google Patents

Novel full-hydraulic follow-up hammer Download PDF

Info

Publication number
CN115971389A
CN115971389A CN202211414716.7A CN202211414716A CN115971389A CN 115971389 A CN115971389 A CN 115971389A CN 202211414716 A CN202211414716 A CN 202211414716A CN 115971389 A CN115971389 A CN 115971389A
Authority
CN
China
Prior art keywords
hammer
wall
rod
hydraulic
full
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN202211414716.7A
Other languages
Chinese (zh)
Other versions
CN115971389B (en
Inventor
曹喻镔
胡大勇
张长龙
王爱军
张为军
张锋
王兴云
陆仲奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Forging Machinery Co ltd
Original Assignee
China Forging Machinery Co ltd
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 China Forging Machinery Co ltd filed Critical China Forging Machinery Co ltd
Priority to CN202211414716.7A priority Critical patent/CN115971389B/en
Publication of CN115971389A publication Critical patent/CN115971389A/en
Application granted granted Critical
Publication of CN115971389B publication Critical patent/CN115971389B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Percussive Tools And Related Accessories (AREA)

Abstract

The invention discloses a brand new full-hydraulic follow-up hammer, which comprises a bracket, a hammer body, a chassis and a groove body, wherein an embedded rod is installed on the outer wall of the hammer body, a sliding block is installed on the outer wall of a guide rod, a moving block is installed at the bottom of the sliding block, an inclined block is installed at the top of the moving block, a first motor is installed on the inner wall of the groove body, a screw rod is installed at the output end of the first motor, and a transmission plate is installed on the outer wall of the screw rod. According to the invention, the inclined block, the moving block and the mounting groove are mounted, when the hammer body and the support are mounted, the embedding rod on the outer wall of the hammer body is embedded in the groove, when the embedding rod is positioned on the top side of the moving block, the motor rotates to enable the inclined block to gradually increase the pressure on the embedding rod, so that the embedding rod is tightly pressed on the support, and when the hammer body needs to be dismounted and maintained, the limitation of the inclined block and the moving block on the embedding rod can be cancelled by reversing the motor.

Description

Novel full-hydraulic follow-up hammer
Technical Field
The invention relates to the technical field of electro-hydraulic hammers, in particular to a brand-new full-hydraulic follow-up hammer.
Background
The electro-hydraulic hammer is a metal hot-working forming device, and is the most common forging device with the longest history. The electro-hydraulic hammer in the prior art is provided with a hydraulic hammer and a full-hydraulic hammer, an equipment hydraulic system is complex in structure, poor in safety and high in fault, a main valve and a hammer rod are on the same central line, and the maintenance is inconvenient.
The existing full-hydraulic follow-up hammer has the defects that:
1. patent document CN111946675a discloses a fully hydraulic driven free forging electric hydraulic hammer hydraulic system, "which is characterized in that: the hydraulic system comprises a pilot-level hydraulic cylinder, a power-level hydraulic cylinder, a pilot-level hydraulic cylinder loop and a power-level hydraulic cylinder loop, wherein the power-level hydraulic cylinder loop comprises a stepless speed regulation liquid charging loop, a stepless speed regulation hammer lifting loop, an energy accumulator loop and a flexible unloading loop; the main position closed-loop control of the pilot-stage hydraulic cylinder and the slave position closed-loop control of the power-stage hydraulic cylinder ensure that the positions of a second piston and a second piston rod of the power-stage hydraulic cylinder are accurately controllable, and the pressure closed-loop control of the pilot-stage hydraulic cylinder and the pressure closed-loop control of the power-stage hydraulic cylinder ensure that the pressure of each system of the fully-hydraulically-driven free forging electrohydraulic hammer is adjustable on line; the proportional unloading valve ensures the stable and impact-free release of high pressure of a third rod cavity of the power-level hydraulic cylinder, but the hammer body is not easy to disassemble and maintain, the disassembly and the assembly at each time are extremely time-consuming and labor-consuming, and the maintenance difficulty is increased;
2. patent document CN208196689U discloses a high security hydraulic hammer, "including the hydraulic hammer body, the below of hydraulic hammer body is equipped with the drill rod, it has the internal thread groove to open through the upper surface at the upper seat, the positioning screw threaded connection of the glass board below of being convenient for is in the inside of internal thread groove, can be spacing the top at the upper seat with the glass board, be convenient for protect operator's face, make the operator be difficult for receiving the injury, through cup jointed the spring housing on the hydraulic hammer body, be convenient for the hydraulic hammer body under the effect of spring housing, fixed mounting has the locating lever on the fly leaf, through locating cap screw thread on the locating lever, extrude the fixed plate through the locating cap, can carry out spacing fixed with the fly leaf, through fixed column and bearing swing joint have the sole in the inside of standing groove, be convenient for the sole upset, the torsional spring has been cup jointed on the fixed column, be convenient for the sole under the effect of torsional spring, get back to the initial position, be convenient for accomodate when not using. However, the full-hydraulic follow-up hammer is inconvenient to move, so that the full-hydraulic follow-up hammer has poor adjusting performance;
3. the patent document CN216566391U discloses an oil field drill rod processing full hydraulic die forging hammer, "including the full hydraulic die forging hammer, the middle part of the full hydraulic die forging hammer is provided with a working area, and further includes a U-shaped plate, a brush assembly and a moving mechanism, the U-shaped plate is arranged on the bottom end of the working area, and the U-shaped plate is fixedly mounted on the full hydraulic die forging hammer, the bottom end of the brush assembly contacts with the bottom of the working area, the moving mechanism includes a lead screw slider assembly and a power assembly, the lead screw slider assembly is symmetrically arranged in two sides of the U-shaped plate, the power assembly is arranged in the middle part of one end of the die forging hammer, the power assembly is connected with two sets of lead screw assemblies in a transmission fit manner, and two ends of the brush assembly are fixedly connected with the two sets of lead screw assemblies, the utility model discloses a slider can effectively realize the automatic cleaning of iron sheet in the bottom of the working area, does not need a special person to clean the iron sheet, reduces the working personnel, reduces the workload, but the full hydraulic assembly is easily damaged by the vibration of its follow-up hammer;
4. patent document CN217370269U discloses a numerical control full hydraulic die forging hammer for forging, which is a frame body, the frame body comprises a pressing device, the surface of the pressing device is connected with a support column through a conduit, and the surface of the support column is provided with a power panel. The utility model discloses a cooperation of pull rod, fly leaf, scraper blade, connecting rod, slider, slide bar and extension spring, the staff of being convenient for is through the pulling pull rod to drive the scraper blade and take place the activity, thereby scrape the clearance to the surperficial iron fillings of device, thereby ensure that the staff carries out quick clearance to the device, also reduced staff's working strength ", but full-hydraulic follow-up hammer does not have hammer block protective structure, and its hammer block probably produces the damage after being hit by the collision.
Disclosure of Invention
The invention aims to provide a brand-new full-hydraulic follow-up hammer to solve the problem of inconvenient maintenance in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a brand new full hydraulic follow-up hammer comprises a bracket, a hammer body, a chassis and a groove body, wherein an embedded rod is arranged on the outer wall of the hammer body;
the inner top wall of the support is provided with an installation groove, the bottom of the support is provided with a groove body, the inner wall of the groove body is provided with a guide rod, the outer wall of the guide rod is provided with a sliding block, the bottom of the sliding block is provided with a moving block, the top of the moving block is provided with an inclined block, the inner wall of the groove body is provided with a first motor, the output end of the first motor is provided with a screw rod, the outer wall of the screw rod is provided with a transmission plate, and one end of the transmission plate is connected with the outer wall of the moving block;
and a column body is embedded in the inner wall of the chassis.
Preferably, the hammer body is installed to the inside roof of support, and the chassis is installed to the bottom of support, and hydraulic assembly is installed to the top side of chassis.
Preferably, no. two motors are installed to the outer wall of cylinder, and the gear is installed to the output of No. two motors, and the gyro wheel is installed to the inner wall of cylinder, and the pinion rack is installed at the top of gyro wheel, and pinion rack and gear engagement.
Preferably, a spring is installed on the inner wall of the cylinder, a connecting plate is installed at one end of the spring, a limiting rod is installed on the outer wall of the connecting plate, a pull rod is installed on the outer wall of the connecting plate, and one end of the pull rod extends out of the outer wall of the cylinder.
Preferably, the air groove has been seted up to the inside on chassis, and the cylinder is installed to the inner wall in air groove, and the baffle is installed to the output of cylinder, and a set of venthole has been seted up to the inside roof in air groove, and the aspiration pump is installed at the top on chassis, the transmission groove has been seted up to the inner wall in air groove, and the piston is installed to the inner wall in transmission groove, and the pin pole is installed to the outer wall of piston, and No. two springs are installed to the outer wall of piston, and the one end of No. two springs and the interior wall connection in transmission groove.
Preferably, the diaphragm is installed to the outer wall of support, and No. three motors are installed at the top of diaphragm, and the winding wheel is installed to the output of No. three motors, and the stay cord is installed to the outer wall of winding wheel, and the one end of stay cord is connected with hydraulic assembly's top side.
Preferably, the fixed plate is installed to the inside roof of support, and the inner wall of fixed plate runs through and installs the slide bar, and the closing cap is installed to the one end of slide bar, and No. four motors are installed to the outer wall of closing cap, and the threaded rod is installed to the output of No. four motors, and the outer wall of fixed plate is extended to the one end of threaded rod.
Preferably, the inner top wall of the bracket is provided with a matching plate, and the outer wall of the matching plate is provided with a sealing gasket.
Preferably, the working steps of the full-hydraulic follow-up hammer are as follows:
s1, when a hammer body and a support are installed, an embedded rod on the outer wall of the hammer body is embedded into a groove body, when the embedded rod is located on the top side of a movable block, a motor rotates to drive a screw rod to rotate, the screw rod rotates to drive a driving plate to move, the driving plate moves to drive a movable block to move, the movable block moves to enable the embedded rod to be limited in the groove body, and along with the movement of the movable block, an inclined block of the movable block gradually increases pressure on the embedded rod, so that the embedded rod is tightly pressed on the support, when the hammer body needs to be disassembled and maintained, the limitation of the inclined block and the movable block on the embedded rod can be cancelled by reversing the motor, the structure enables the separation and installation of the hammer body to be simple and convenient, and the hammer body can be conveniently disassembled and maintained at any time;
s2, when the moving position of the full-hydraulic follow-up hammer needs to be adjusted, a second motor rotates to drive a gear to rotate, the gear rotates to drive a toothed plate to move, the toothed plate moves to drive rollers to move, so that the rollers embedded in the cylinder are gradually moved out of the bottom side of the chassis, the full-hydraulic follow-up hammer is supported by four groups of rollers, and when the rollers are completely moved out, a spring of the full-hydraulic follow-up hammer ejects a limiting rod to enable the limiting rod to be located on the top side of the toothed plate, so that the rollers are locked;
s3, a hydraulic component of the full-hydraulic follow-up hammer is generally connected with the full-hydraulic follow-up hammer into a whole, when the hydraulic follow-up hammer works, vibration of the full-hydraulic follow-up hammer is transmitted to the hydraulic component, so that the hydraulic component can be damaged due to vibration, at the moment, the air suction pump pumps air in the air groove, negative pressure of the air suction pump drives the piston to move, the piston moves to drive the thin rod to move, the thin rod retracts into the transmission groove, the hydraulic component is not supported by the thin rod any more, the third motor rotates to loosen the pull rope, the hydraulic component descends to be in contact with a placing surface, vibration of the full-hydraulic follow-up hammer when the hydraulic component works does not affect the hydraulic component, when the hydraulic component needs to be connected into a whole, the third motor rotates reversely to pull the hydraulic component back, the air cylinder of the air cylinder can drive the baffle to move, air holes of the air groove are opened, air pressure of the air groove is recovered, the second spring restores the thin rod, at the moment, the hydraulic component is supported by the thin rod again, and the structure greatly reduces the influence of the vibration of the hydraulic component, and avoids the possibility of damage;
s4, at the during operation, the sealed cowling and the cooperation board of its hammer block both sides are avoided someone to a certain extent to be close to the contact, and when the hammer block finishes using, the rotation of No. four motors drives the threaded rod rotatory, the threaded rod is rotatory on the fixed plate rotary motion, make the sealed cowling slowly remove along the direction of slide bar, make the hammer block enclosed cowling cage gradually, and the sealed pad contact of sealed cowling and cooperation board, it is airtight to accomplish, this structure plays the guard action to the hammer block, avoid external environment to cause the risk of damage to the hammer block.
Preferably, the step S1 further includes the steps of:
s11, when the hammer body is installed, the top side of the hammer body is embedded into the installation groove, and after the hammer body is installed, the hammer body is just matched with the installation groove.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by installing the inclined block, the movable block and the installation groove, when the hammer body and the support are installed, the embedded rod on the outer wall of the hammer body is embedded in the groove body, when the embedded rod is positioned on the top side of the movable block, the first motor rotates to drive the screw rod to rotate, the screw rod rotates to drive the transmission plate to move, the transmission plate moves to drive the movable block to move, the movable block moves to enable the embedded rod to be limited in the groove body, and along with the movement of the movable block, the inclined block of the movable block gradually increases the pressure on the embedded rod, so that the embedded rod is tightly pressed on the support, and when the dismounting and the maintenance are needed, the limitation of the inclined block and the movable block on the embedded rod can be cancelled by the reversal of the first motor of the movable block, so that the structure enables the separation and the installation of the hammer body to be simple and convenient, and the dismounting and the maintenance of the hammer body can be conveniently carried out at any time;
2. according to the invention, by installing the idler wheel, the toothed plate and the gear, when the full-hydraulic follow-up hammer needs to adjust the moving position, the second motor rotates to drive the gear to rotate, the gear rotates to drive the toothed plate to move, the toothed plate moves to drive the idler wheel to move, the idler wheel embedded in the cylinder is enabled to gradually move out of the bottom side of the chassis, the full-hydraulic follow-up hammer is enabled to be supported by four groups of idler wheels, and when the idler wheel is completely moved out, the limiting rod is popped up by one spring of the spring, so that the limiting rod is positioned on the top side of the toothed plate, the idler wheel is locked, at the moment, the moving difficulty of the full-hydraulic follow-up hammer can be greatly reduced, when the adjustment is finished, the pull rod is pulled, the pull rod moves to drive the limiting rod to move, and the idler wheel is pressed back into the cylinder again, the structure enables the full-hydraulic follow-up hammer to be convenient to move, the chassis can also be rapidly contacted with a placing surface when the full-hydraulic follow-up hammer is not moved, and the adjusting performance is improved;
3. the hydraulic component of the full-hydraulic follow-up hammer is generally integrally connected with the full-hydraulic follow-up hammer, when the hydraulic component works, the vibration of the full-hydraulic follow-up hammer is transmitted to the hydraulic component, so that the hydraulic component can be damaged due to vibration, at the moment, the air suction pump pumps air out of the air groove, negative pressure of the air suction pump drives the piston to move, the piston moves to drive the thin rod to move, and the thin rod retracts into the transmission groove, so that the hydraulic component is not supported by the thin rod any more, the third motor rotates to loosen the pull rope, the hydraulic component descends to be in contact with a placing surface, so that the vibration of the full-hydraulic follow-up hammer during working has no influence on the hydraulic component;
4. according to the invention, the sealing cover, the matching plate and the sealing gasket are arranged, when the hammer works, the sealing cover and the matching plate on the two sides of the hammer body are prevented from being close to and contacted by a person to a certain extent, when the hammer body is used, the motor rotates to drive the threaded rod to rotate, the threaded rod rotates to rotate and move on the fixed plate, so that the sealing cover slowly moves along the direction of the sliding rod, the hammer body is gradually covered by the sealing cover, and the sealing cover is contacted with the sealing gasket of the matching plate to complete sealing.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the hammer structure of the present invention;
FIG. 3 is a schematic view of the structure of the trough of the present invention;
FIG. 4 is a schematic view of the structure of the chassis of the present invention;
FIG. 5 is a schematic view of a restraining bar according to the present invention;
FIG. 6 is a schematic view of a support bar according to the present invention;
FIG. 7 is a schematic view of the closure of the present invention;
fig. 8 is a schematic view of the work flow structure of the present invention.
In the figure: 1. a support; 2. a hammer body; 3. a hydraulic assembly; 4. a chassis; 5. an embedded rod; 6. mounting grooves; 7. a trough body; 8. a guide bar; 9. a slider; 10. a moving block; 11. a sloping block; 12. a first motor; 13. a screw; 14. a drive plate; 15. a cylinder; 16. a second motor; 17. a gear; 18. a roller; 19. a toothed plate; 20. a first spring; 21. connecting plates; 22. a restricting lever; 23. a pull rod; 24. an air tank; 25. a cylinder; 26. a baffle plate; 27. air holes; 28. an air pump; 29. a transmission groove; 30. a piston; 31. a thin rod; 32. a second spring; 33. a transverse plate; 34. a third motor; 35. a winding wheel; 36. pulling a rope; 37. a fixing plate; 38. a slide bar; 39. a closure cap; 40. a fourth motor; 41. a threaded rod; 42. a mating plate; 43. and a gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1-8, an embodiment of the present invention is shown: a brand-new full-hydraulic follow-up hammer comprises a support 1, a hammer body 2, a chassis 4 and a groove body 7, wherein the hammer body 2 is installed on the top wall inside the support 1, the chassis 4 is installed at the bottom of the support 1, and a hydraulic assembly 3 is installed on the top side of the chassis 4. The hydraulic component 3 is connected with the top side of the hammer body 2, and the hydraulic component 3 comprises an oil pump, an oil tank, a pipeline and various valve bodies, so that the hammer body 2 is driven to operate
The outer wall of the hammer body 2 is provided with an embedded rod 5, the inner top wall of the support 1 is provided with a mounting groove 6, the bottom of the support 1 is provided with a groove body 7, the inner wall of the groove body 7 is provided with a guide rod 8, the outer wall of the guide rod 8 is provided with a slide block 9, the bottom of the slide block 9 is provided with a movable block 10, the top of the movable block 10 is provided with an inclined block 11, the inner wall of the groove body 7 is provided with a motor 12, the motor 12 is provided with a screw 13 at the output end of the motor 12, the outer wall of the screw 13 is provided with a transmission plate 14, one end of the transmission plate 14 is connected with the outer wall of the movable block 10, when the hammer body 2 is mounted with the support 1, the embedded rod 5 on the outer wall of the hammer body 2 is embedded into the groove body 7, when the embedded rod 5 is positioned on the top side of the movable block 10, the motor 12 rotates to drive the screw 13, the transmission plate 14 rotates to drive the movable block 10 to move, the movable block 10 moves, the embedded rod 5 is limited in the groove body 7, and when the movable block 10 moves, the inclined block 11 is moved, so that the embedded rod 5 is pressed on the support 5, and the movable block is conveniently dismounted and the inclined block 2, and the movable block can be conveniently dismounted and the movable block 2 and the movable block can be dismounted.
The cylinder 15 is installed in the inner wall embedding of the chassis 4, the second motor 16 is installed on the outer wall of the cylinder 15, the gear 17 is installed at the output end of the second motor 16, the idler wheel 18 is installed on the inner wall of the cylinder 15, the toothed plate 19 is installed at the top of the idler wheel 18, the toothed plate 19 is meshed with the gear 17, the first spring 20 is installed on the inner wall of the cylinder 15, the connecting plate 21 is installed at one end of the first spring 20, the limiting rod 22 is installed on the outer wall of the connecting plate 21, the pull rod 23 is installed on the outer wall of the connecting plate 21, one end of the pull rod 23 extends out of the outer wall of the cylinder 15, when the moving position of the full-hydraulic follow-up hammer needs to be adjusted, the second motor 16 rotates to drive the gear 17 to rotate, the gear 17 rotates to drive the toothed plate 19 to move, the toothed plate 19 moves to drive the roller 18 to move, so that the roller 18 embedded in the cylinder 15 gradually moves out of the bottom side of the chassis 4, the full-hydraulic follow-up hammer is supported by the four groups of rollers 18, and when the roller 18 is completely moved out, the limiting rod 22 is ejected by the spring 20, so that the limiting rod 22 is positioned on the top side of the toothed plate 19, the roller 18 is locked, the moving difficulty of the full-hydraulic follow-up hammer can be greatly reduced, when the adjustment is finished, the pull rod 23 is pulled, the pull rod 23 moves to drive the limiting rod 22 to move, the roller 18 is pressed back into the cylinder 15 again, and the structure enables the full-hydraulic follow-up hammer to be convenient to move, the chassis 4 can be rapidly contacted with a placing surface when the full-hydraulic follow-up hammer is not moved, and the adjustment performance is improved.
An air groove 24 is formed in the chassis 4, an air cylinder 25 is installed on the inner wall of the air groove 24, a baffle 26 is installed at the output end of the air cylinder 25, a group of air outlet holes 27 is formed in the top wall of the inner portion of the air groove 24, an air suction pump 28 is installed at the top portion of the chassis 4, a transmission groove 29 is formed in the inner wall of the air groove 24, a piston 30 is installed on the inner wall of the transmission groove 29, a thin rod 31 is installed on the outer wall of the piston 30, a second spring 32 is installed on the outer wall of the piston 30, one end of the second spring 32 is connected with the inner wall of the transmission groove 29, a transverse plate 33 is installed on the outer wall of the support 1, a third motor 34 is installed on the top portion of the transverse plate 33, a rolling wheel 35 is installed on the output end of the third motor 34, a pull rope 36 is installed on the outer wall of the rolling wheel 35, one end of the pull rope 36 is connected with the top side of the hydraulic assembly 3, the hydraulic assembly 3 of the full-hydraulic follow-up hammer is generally connected with the full-up hammer integrally, and works, the vibration of the full hydraulic follow-up hammer is transmitted to the hydraulic component 3, so that the hydraulic component 3 is damaged due to vibration, at the moment, the air pump 28 pumps air out of the air groove 24, the negative pressure drives the piston 30 to move, the piston 30 moves to drive the thin rod 31 to move, the thin rod 31 retracts into the transmission groove 29, so that the hydraulic component 3 is not supported by the thin rod 31 any more, the third motor 34 rotates to loosen the pull rope 36, so that the hydraulic component 3 descends to be in contact with a placing surface, the vibration of the full hydraulic follow-up hammer during working has no influence on the hydraulic component 3, when the hydraulic component is required to be integrally connected, the third motor 34 reversely rotates to pull back the hydraulic component 3, the air cylinder 25 can drive the baffle 26 to move, the air hole 27 is opened, the air pressure of the air groove 24 is recovered, the thin rod 31 is recovered by the second spring 32, the hydraulic component 3 is supported by the thin rod 31 again, and the influence of the vibration on the hydraulic component 3 is greatly reduced, the possibility of damage is avoided.
Fixed plate 37 is installed to the inside roof of support 1, and the inner wall of fixed plate 37 runs through and installs slide bar 38, and closing cover 39 is installed to the one end of slide bar 38, and closing cover 39's outer wall is installed No. four motor 40, and threaded rod 41 is installed to No. four motor 40's output, and the one end of threaded rod 41 extends the outer wall of fixed plate 37, cooperation board 42 is installed to the inside roof of support 1, and sealed pad 43 is installed to cooperation board 42's outer wall, and at the during operation, closing cover 39 and the cooperation board 42 of its hammer block 2 both sides are avoided someone to a certain extent to be close to the contact, and when hammer block 2 used and finish, no. four motor 40 is rotatory to drive threaded rod 41 rotatory, and threaded rod 41 is rotatory to rotate on fixed plate 37, make closing cover 39 slow direction along slide bar 38 remove, make hammer block 2 gradually by closing cover 39 cage, and closing cover 39 and cooperation board 42's sealed pad 43 contact, accomplish inclosed, this structure plays the guard action to hammer block 2, avoids the external environment to cause the risk of damage to hammer block 2.
The working steps of the full-hydraulic follow-up hammer are as follows:
s1, when a hammer body 2 and a support 1 are installed, an embedded rod 5 on the outer wall of the hammer body 2 is embedded into a groove body 7, when the embedded rod 5 is located on the top side of a movable block 10, a motor 12 rotates to drive a screw 13 to rotate, the screw 13 rotates to drive a transmission plate 14 to move, the transmission plate 14 moves to drive the movable block 10 to move, the movable block 10 moves to enable the embedded rod 5 to be limited in the groove body 7, and along with the movement of the movable block 10, an inclined block 11 of the movable block gradually increases pressure on the embedded rod 5, so that the embedded rod 5 is tightly pressed on the support 1, when disassembly and maintenance are needed, the motor 12 rotates reversely to cancel the limitation of the inclined block 11 and the movable block 10 on the embedded rod 5, and the structure enables the separation and installation of the hammer body 2 to be simple and convenient, and facilitates the disassembly and maintenance of the hammer body 2 at any time;
s2, when the moving position of the full-hydraulic follow-up hammer needs to be adjusted, a second motor 16 rotates to drive a gear 17 to rotate, the gear 17 rotates to drive a toothed plate 19 to move, the toothed plate 19 moves to drive a roller 18 to move, the roller 18 embedded in the column body 15 gradually moves out of the bottom side of the chassis 4, the full-hydraulic follow-up hammer is supported by four groups of rollers 18, and when the roller 18 is completely moved out, a spring 20 of the spring ejects a limiting rod 22, the limiting rod 22 is located on the top side of the toothed plate 19, the roller 18 is locked, the moving difficulty of the full-hydraulic follow-up hammer can be greatly reduced at the moment;
s3, a hydraulic component 3 of the full-hydraulic follow-up hammer is generally connected with the full-hydraulic follow-up hammer into a whole, when the hydraulic component works, vibration of the full-hydraulic follow-up hammer is transmitted to the hydraulic component 3, so that the hydraulic component 3 is damaged due to vibration, at the moment, the air pump 28 pumps air out of the air groove 24, negative pressure drives the piston 30 to move, the piston 30 moves to drive the thin rod 31 to move, the thin rod 31 retracts into the transmission groove 29, the hydraulic component 3 is not supported by the thin rod 31 any more, the third motor 34 rotates to loosen the pull rope 36, the hydraulic component 3 descends to be in contact with a placement surface, vibration generated when the follow-up hammer works has no influence on the hydraulic component 3, when the full-hydraulic follow-up hammer needs to be connected into a whole, the third motor 34 rotates reversely to pull the hydraulic component 3 back, the air cylinder 25 can drive the baffle 26 to move, the air hole 27 is opened, air pressure of the air groove 24 is recovered, the second spring 32 recovers the thin rod 31, at the moment, the hydraulic component 3 is supported by the thin rod 31 again, and the structure greatly reduces influence of vibration on the hydraulic component 3 and avoids the possibility of damage;
s4, at the during operation, the enclosure 39 and the cooperation board 42 of its hammer block 2 both sides are avoided someone to a certain extent to be close to the contact, and when the hammer block 2 used up, the rotatory threaded rod 41 rotation of drive of No. four motor 40, threaded rod 41 is rotatory to be rotated on fixed plate 37 and is moved, make enclosure 39 slowly move along the direction of slide bar 38, make hammer block 2 gradually by enclosure 39 cage, and enclosure 39 and the sealed pad 43 contact of cooperation board 42, it is airtight to accomplish, this structure plays the guard action to hammer block 2, avoid external environment to cause the risk of damage to hammer block 2.
In the step S1, the method further includes the steps of:
s11, when the hammer body 2 is installed, the top side of the hammer body 2 is embedded into the installation groove 6, and after the installation is finished, the hammer body 2 is just matched with the installation groove 6.
The working principle is that when the hammer body 2 and the bracket 1 are installed, the embedded rod 5 on the outer wall of the hammer body 2 is embedded into the groove body 7, when the embedded rod 5 is positioned on the top side of the movable block 10, the first motor 12 rotates to drive the screw 13 to rotate, the screw 13 rotates to drive the transmission plate 14 to move, the transmission plate 14 moves to drive the movable block 10 to move, the movable block 10 moves to enable the embedded rod 5 to be limited in the groove body 7, and along with the movement of the movable block 10, the inclined block 11 of the movable block gradually increases the pressure on the embedded rod 5, so that the embedded rod 5 is tightly pressed on the bracket 1, when the disassembly and maintenance are needed, the first motor 12 rotates reversely to cancel the limitation of the inclined block 11 and the movable block 10 on the embedded rod 5, the structure enables the separation and installation of the hammer body 2 to be simple and convenient, the disassembly and maintenance of the hammer body 2 are convenient at any time, when the moving position of the full-hydraulic follow-up hammer needs to be adjusted, the second motor 16 rotates to drive the gear 17 to rotate, the gear 17 rotates to drive the toothed plate 19 to move, the toothed plate 19 moves to drive the roller 18 to move, so that the roller 18 embedded in the cylinder 15 gradually moves out of the bottom side of the chassis 4, the full-hydraulic follow-up hammer is supported by four groups of rollers 18, and when the roller 18 is completely moved out, the limiting rod 22 is ejected by the spring 20, the limiting rod 22 is positioned on the top side of the toothed plate 19, so that the roller 18 is locked, at the moment, the difficulty of moving the full-hydraulic follow-up hammer is greatly reduced, when the adjustment is finished, the pull rod 23 is pulled, the pull rod 23 moves to drive the limiting rod 22 to move, so that the roller 18 is pressed back into the cylinder 15 again, the structure enables the full-hydraulic follow-up hammer to be convenient to move, the chassis 4 can be rapidly contacted with a placing surface when the full-hydraulic follow-up hammer is not moved, the adjustment performance is improved, and the hydraulic component 3 of the full-hydraulic follow-up hammer is generally integrally connected with the full-hydraulic follow-up hammer, when the hydraulic follow-up hammer works, the vibration of the full-hydraulic follow-up hammer is transmitted to the hydraulic component 3, so that the hydraulic component 3 can be damaged due to the vibration, at the moment, the air pump 28 pumps the air in the air groove 24 out, the negative pressure drives the piston 30 to move, the piston 30 moves to drive the thin rod 31 to move, the thin rod 31 retracts into the transmission groove 29, so that the hydraulic component 3 is not supported by the thin rod 31, the third motor 34 rotates to loosen the pull rope 36, so that the hydraulic component 3 descends to be in contact with a placing surface, the vibration of the full-hydraulic follow-up hammer during working has no influence on the hydraulic component 3, when the hydraulic component is required to be integrally connected, the third motor 34 rotates reversely to pull the hydraulic component 3 back, the air cylinder 25 can drive the baffle 26 to move, the air hole 27 is opened, and the air pressure of the air groove 24 is recovered, spring 32 restores pin 31, hydraulic assembly 3 is supported by pin 31 again this moment, this structure has reduced hydraulic assembly 3 greatly and has received the influence of vibration, the possibility of damage has been avoided, at the during operation, the closed cover 39 and the cooperation board 42 of its hammer block 2 both sides avoid someone to be close to the contact to a certain extent, and when hammer block 2 used, the rotatory threaded rod 41 that drives of No. four motor 40 is rotatory, threaded rod 41 is rotatory to move on fixed plate 37 top spin, make closed cover 39 slowly move along the direction of slide bar 38, make hammer block 2 gradually enclosed cover 39 cage, and the sealed pad 43 contact of closed cover 39 and cooperation board 42, it is airtight to accomplish, this structure plays the guard action to hammer block 2, avoid external environment to cause the risk of damage to hammer block 2.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The brand-new full-hydraulic follow-up hammer comprises a support (1), a hammer body (2), a chassis (4) and a groove body (7), and is characterized in that: the outer wall of the hammer body (2) is provided with an embedded rod (5);
the inner top wall of the support (1) is provided with a mounting groove (6), the bottom of the support (1) is provided with a groove body (7), the inner wall of the groove body (7) is provided with a guide rod (8), the outer wall of the guide rod (8) is provided with a slide block (9), the bottom of the slide block (9) is provided with a movable block (10), the top of the movable block (10) is provided with an inclined block (11), the inner wall of the groove body (7) is provided with a first motor (12), the output end of the first motor (12) is provided with a screw rod (13), the outer wall of the screw rod (13) is provided with a transmission plate (14), and one end of the transmission plate (14) is connected with the outer wall of the movable block (10);
and a column (15) is embedded in the inner wall of the chassis (4).
2. The new full hydraulic follow-up hammer as claimed in claim 1, wherein: the hammer body (2) is installed to the inside roof of support (1), and chassis (4) are installed to the bottom of support (1), and hydraulic assembly (3) are installed to the top side of chassis (4). The hydraulic component (3) is connected with the top side of the hammer body (2), and the hydraulic component (3) comprises an oil pump, an oil tank, a pipeline and various valve bodies, so that the hammer body (2) is driven to operate.
3. The new full hydraulic follow-up hammer as claimed in claim 1, wherein: no. two motor (16) are installed to the outer wall of cylinder (15), and gear (17) are installed to the output of No. two motor (16), and gyro wheel (18) are installed to the inner wall of cylinder (15), and pinion rack (19) are installed at the top of gyro wheel (18), and pinion rack (19) and gear (17) meshing.
4. The new full hydraulic follow-up hammer as claimed in claim 1, wherein: a spring (20) is installed on the inner wall of the cylinder (15), a connecting plate (21) is installed at one end of the spring (20), a limiting rod (22) is installed on the outer wall of the connecting plate (21), a pull rod (23) is installed on the outer wall of the connecting plate (21), and one end of the pull rod (23) extends out of the outer wall of the cylinder (15).
5. The new full hydraulic follow-up hammer as claimed in claim 1, wherein: air groove (24) have been seted up to the inside of chassis (4), and cylinder (25) are installed to the inner wall of air groove (24), and baffle (26) are installed to the output of cylinder (25), and a set of venthole (27) have been seted up to the inside roof of air groove (24), and aspiration pump (28) are installed at the top of chassis (4), driving groove (29) have been seted up to the inner wall of air groove (24), and piston (30) are installed to the inner wall of driving groove (29), and pin (31) are installed to the outer wall of piston (30), and No. two spring (32) are installed to the outer wall of piston (30), and the one end of No. two spring (32) and the interior wall connection of driving groove (29).
6. The new full hydraulic follow-up hammer as claimed in claim 1, wherein: diaphragm (33) are installed to the outer wall of support (1), and No. three motor (34) are installed at the top of diaphragm (33), and rolling wheel (35) are installed to the output of No. three motor (34), and stay cord (36) are installed to the outer wall of rolling wheel (35), and the one end of stay cord (36) is connected with the top side of hydraulic component (3).
7. The new full hydraulic follow-up hammer as claimed in claim 1, wherein: fixed plate (37) are installed to the inside roof of support (1), and the inner wall of fixed plate (37) runs through installs slide bar (38), and closing cap (39) are installed to the one end of slide bar (38), and No. four motor (40) are installed to the outer wall of closing cap (39), and threaded rod (41) are installed to the output of No. four motor (40), and the outer wall of fixed plate (37) is extended to the one end of threaded rod (41).
8. The new full hydraulic follow-up hammer as claimed in claim 1, wherein: the inside roof of support (1) is installed and is joined in marriage board (42), and sealed pad (43) are installed to the outer wall of joining in marriage board (42).
9. The use method of the full-hydraulic follow-up hammer as claimed in any one of claims 1 to 8, wherein the full-hydraulic follow-up hammer comprises the following working steps:
s1, when a hammer body (2) and a support (1) are installed, an embedding rod (5) on the outer wall of the hammer body (2) is embedded into a groove body (7), when the embedding rod (5) is located on the top side of a movable block (10), a motor (12) rotates to drive a screw rod (13) to rotate, the screw rod (13) rotates to drive a transmission plate (14) to move, the transmission plate (14) moves to drive the movable block (10) to move, the movable block (10) moves to enable the embedding rod (5) to be limited in the groove body (7), and along with the movement of the movable block (10), an inclined block (11) of the motor can gradually increase the pressure on the embedding rod (5) so that the embedding rod (5) is tightly pressed on the support (1), and when the hammer body (2) needs to be disassembled and maintained, the motor (12) can reversely rotate to cancel the limitation of the inclined block (11) and the movable block (10) on the embedding rod (5), so that the hammer body (2) is simple and convenient to separate and convenient to disassemble and maintain the hammer body (2);
s2, when the moving position of the full-hydraulic follow-up hammer needs to be adjusted, a second motor (16) rotates to drive a gear (17) to rotate, the gear (17) rotates to drive a toothed plate (19) to move, the toothed plate (19) moves to drive a roller (18) to move, the roller (18) embedded in the cylinder (15) gradually moves out of the bottom side of the chassis (4), the full-hydraulic follow-up hammer is supported by four groups of rollers (18), and when the roller (18) is completely moved out, a spring (20) ejects a limiting rod (22) to enable the limiting rod (22) to be located on the top side of the toothed plate (19), so that the roller (18) is locked, the moving difficulty of the full-hydraulic follow-up hammer can be greatly reduced, when the adjustment is finished, the pull rod (23) is pulled, the pull rod (23) moves to drive the limiting rod (22) to move, the roller (18) is pressed back into the cylinder (15) again, and the structure enables the full-hydraulic follow-up hammer to be convenient to move, when the full-hydraulic follow-up hammer is not moved, the chassis (4) is in contact with the placing surface, and the adjusting performance is improved;
s3, a hydraulic component (3) of the full-hydraulic follow-up hammer is generally connected with the full-hydraulic follow-up hammer into a whole, when the hydraulic follow-up hammer works, vibration of the full-hydraulic follow-up hammer is transmitted to the hydraulic component (3), so that the hydraulic component (3) is damaged due to vibration, at the moment, air in an air groove (24) is pumped out by an air pump (28), negative pressure drives a piston (30) to move, the piston (30) moves to drive a thin rod (31) to move, the thin rod (31) retracts into a transmission groove (29), so that the hydraulic component (3) is not supported by the thin rod (31), a third motor (34) rotates to loosen a pull rope (36), the hydraulic component (3) descends to be in contact with a placing surface, vibration of the full-hydraulic follow-up hammer during working does not affect the hydraulic component (3), when the full-hydraulic follow-up hammer needs to be connected integrally, the third motor (34) reverses to pull the hydraulic component (3) back, a cylinder (25) can drive a baffle (26) to move, an air hole (27) is opened, air pressure of the air groove (24) recovers, a second spring (32) greatly reduces the vibration of the thin rod (31), and the hydraulic component (31) is prevented from being damaged;
s4, when the hammer is in operation, the closed cover (39) and the matching plate (42) on the two sides of the hammer body (2) are prevented from being close to contact by people to a certain extent, when the hammer body (2) is used up, the four-motor (40) rotates to drive the threaded rod (41) to rotate, the threaded rod (41) rotates on the fixed plate (37) to move in a rotating mode, the closed cover (39) slowly moves along the direction of the sliding rod (38), the hammer body (2) is gradually covered by the closed cover (39), the closed cover (39) is in contact with the sealing gasket (43) of the matching plate (42), sealing is completed, the structure plays a protection role in the hammer body (2), and the risk that the external environment damages the hammer body (2) is avoided.
10. The completely new all-hydraulic follow-up hammer of claim 9, wherein in the step S1, the method further comprises the following steps:
s11, when the hammer body (2) is installed, the top side of the hammer body (2) is embedded into the installation groove (6), and after the installation is finished, the hammer body (2) is just matched with the installation groove (6).
CN202211414716.7A 2022-11-11 2022-11-11 Full-hydraulic follow-up hammer Active CN115971389B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211414716.7A CN115971389B (en) 2022-11-11 2022-11-11 Full-hydraulic follow-up hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211414716.7A CN115971389B (en) 2022-11-11 2022-11-11 Full-hydraulic follow-up hammer

Publications (2)

Publication Number Publication Date
CN115971389A true CN115971389A (en) 2023-04-18
CN115971389B CN115971389B (en) 2023-07-28

Family

ID=85960116

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211414716.7A Active CN115971389B (en) 2022-11-11 2022-11-11 Full-hydraulic follow-up hammer

Country Status (1)

Country Link
CN (1) CN115971389B (en)

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191014302A (en) * 1910-06-13 1911-03-30 Robert Fleming Arnott Improvements in and relating to Fluid-operated Hammers.
GB842169A (en) * 1957-07-01 1960-07-20 Massey Ltd B & S Improvements in or relating to friction drop hammers
US4170051A (en) * 1977-10-25 1979-10-09 Textron Inc. Hydraulic and mechanical punch holder adjustment
DE4111834A1 (en) * 1991-04-11 1992-10-15 Berg & Co Gmbh Locking device for ram of press - has self-locking bolt and nut driven by motor for both locking and release
US20170008067A1 (en) * 2014-02-10 2017-01-12 Danieli & C. Officine Meccaniche S.P.A. Forging machine
CN208178341U (en) * 2017-06-19 2018-12-04 沈阳市野枫机械厂 A kind of forging machine being convenient for changing tup
CN208341615U (en) * 2018-06-15 2019-01-08 重庆工业职业技术学院 A kind of material processing forging hammer damper
CN112065816A (en) * 2020-09-16 2020-12-11 中机锻压江苏股份有限公司 Length-variable full-built-in hydraulic ramming hammer
CN212477724U (en) * 2020-05-18 2021-02-05 上海梦奇实业有限公司 Pile cap with high strength for hydraulic hammer
CN213645753U (en) * 2020-09-26 2021-07-09 朝阳君廷大型锻造机械制造有限公司 Arch type free forging electro-hydraulic hammer for forging
CN113118359A (en) * 2021-04-20 2021-07-16 艾承一(深圳)科技有限公司 Aerodynamic noise elimination device and method for metal forming machine tool
CN213954644U (en) * 2020-12-11 2021-08-13 马鞍山市安瑞机械有限公司 Novel control valve joint mechanism for hydraulic hammer
CN214940575U (en) * 2021-06-21 2021-11-30 烟台皓普精密机械有限公司 Quartering hammer convenient to change chisel head
CN215630287U (en) * 2021-07-19 2022-01-25 安徽丰进机械有限公司 Hydraulic breaking hammer convenient to install
CN215813837U (en) * 2021-09-26 2022-02-11 嘉兴技师学院 Electrical control device based on PLC technique
CN216194731U (en) * 2021-10-21 2022-04-05 温州永安重工科技有限公司 Electric clamping assembly of hydraulic vibration hammer
CN216226729U (en) * 2021-09-10 2022-04-08 柏慧 Intelligent forging automatic production line with high forging efficiency and good protection performance
CN216607070U (en) * 2021-12-31 2022-05-27 宜兴市中辉模具制造有限公司 Electro-hydraulic hammer for forging production process
CN114618645A (en) * 2020-12-12 2022-06-14 马鞍山盛凡智荣信息技术有限责任公司 Dustproof fixed hydraulic crusher convenient to change hydraulic hammer

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191014302A (en) * 1910-06-13 1911-03-30 Robert Fleming Arnott Improvements in and relating to Fluid-operated Hammers.
GB842169A (en) * 1957-07-01 1960-07-20 Massey Ltd B & S Improvements in or relating to friction drop hammers
US4170051A (en) * 1977-10-25 1979-10-09 Textron Inc. Hydraulic and mechanical punch holder adjustment
DE4111834A1 (en) * 1991-04-11 1992-10-15 Berg & Co Gmbh Locking device for ram of press - has self-locking bolt and nut driven by motor for both locking and release
US20170008067A1 (en) * 2014-02-10 2017-01-12 Danieli & C. Officine Meccaniche S.P.A. Forging machine
CN208178341U (en) * 2017-06-19 2018-12-04 沈阳市野枫机械厂 A kind of forging machine being convenient for changing tup
CN208341615U (en) * 2018-06-15 2019-01-08 重庆工业职业技术学院 A kind of material processing forging hammer damper
CN212477724U (en) * 2020-05-18 2021-02-05 上海梦奇实业有限公司 Pile cap with high strength for hydraulic hammer
CN112065816A (en) * 2020-09-16 2020-12-11 中机锻压江苏股份有限公司 Length-variable full-built-in hydraulic ramming hammer
CN213645753U (en) * 2020-09-26 2021-07-09 朝阳君廷大型锻造机械制造有限公司 Arch type free forging electro-hydraulic hammer for forging
CN213954644U (en) * 2020-12-11 2021-08-13 马鞍山市安瑞机械有限公司 Novel control valve joint mechanism for hydraulic hammer
CN114618645A (en) * 2020-12-12 2022-06-14 马鞍山盛凡智荣信息技术有限责任公司 Dustproof fixed hydraulic crusher convenient to change hydraulic hammer
CN113118359A (en) * 2021-04-20 2021-07-16 艾承一(深圳)科技有限公司 Aerodynamic noise elimination device and method for metal forming machine tool
CN214940575U (en) * 2021-06-21 2021-11-30 烟台皓普精密机械有限公司 Quartering hammer convenient to change chisel head
CN215630287U (en) * 2021-07-19 2022-01-25 安徽丰进机械有限公司 Hydraulic breaking hammer convenient to install
CN216226729U (en) * 2021-09-10 2022-04-08 柏慧 Intelligent forging automatic production line with high forging efficiency and good protection performance
CN215813837U (en) * 2021-09-26 2022-02-11 嘉兴技师学院 Electrical control device based on PLC technique
CN216194731U (en) * 2021-10-21 2022-04-05 温州永安重工科技有限公司 Electric clamping assembly of hydraulic vibration hammer
CN216607070U (en) * 2021-12-31 2022-05-27 宜兴市中辉模具制造有限公司 Electro-hydraulic hammer for forging production process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
贺鸣,刘庆,夏德仕: "一种高效节能的电液锤动力头", 机械工人.热加工, no. 04 *

Also Published As

Publication number Publication date
CN115971389B (en) 2023-07-28

Similar Documents

Publication Publication Date Title
CN115971389A (en) Novel full-hydraulic follow-up hammer
CN210714770U (en) Mining excavation dust device
CN211039224U (en) Servo hydraulic cylinder device
CN111735662A (en) Peristaltic pump type intelligent inspection and sampling device
CN215908764U (en) Remote monitoring equipment for power failure detection
CN114576473B (en) Energy-saving building air source heat pump base
CN113900150A (en) Electronic automatic measurer for underground pipeline and use method thereof
CN216339767U (en) Hydraulic engineering construction is with quick desilting device
CN211900484U (en) Angle-adjustable anchor cable drilling machine scaffold
CN114755133A (en) Waterproof material wear resistance testing device and method for cold wallet
CN111458246B (en) Quality detection device for rubber deceleration strip
CN220457951U (en) Garden landscape weeding device
CN218023698U (en) Belt tensioning control device for motor of vacuum mixer
CN220002822U (en) Waterlogging drainage device of fire truck
CN220929179U (en) Explosion-proof door
CN219060199U (en) Water pipe control device
CN220469761U (en) Electrical equipment maintenance ladder convenient to remove
CN217943199U (en) Hydraulic pump disassembling tool
CN217992914U (en) Automatic bottom die cleaning device
CN220159554U (en) Dust fall device of building site
CN218400278U (en) New energy automobile fills electric pile rail guard structure
CN211102989U (en) Prevent wind formula crossbeam organ guard shield protector
CN216596018U (en) Limiting device for solar photovoltaic panel
CN113328380B (en) Electric power overhaul equipment
CN210687564U (en) Complete equipment convenient for video monitoring camera maintenance

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant