CN113896119B - Locking device for rotating mechanism and floating crane rotating mechanism - Google Patents
Locking device for rotating mechanism and floating crane rotating mechanism Download PDFInfo
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- CN113896119B CN113896119B CN202110998437.9A CN202110998437A CN113896119B CN 113896119 B CN113896119 B CN 113896119B CN 202110998437 A CN202110998437 A CN 202110998437A CN 113896119 B CN113896119 B CN 113896119B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 90
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 47
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract description 6
- 239000000725 suspension Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/52—Floating cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The present invention relates to a locking device for a rotating mechanism and a floating crane rotating mechanism. The rotating mechanism comprises a machine seat and a rotating gear box, and reinforcing rib plates are arranged on the outer side surface of the rotating gear box in a protruding mode; the locking device for the rotating mechanism comprises at least two locking assemblies, wherein the two locking assemblies are respectively positioned on two sides of the reinforcing rib plate, each locking assembly comprises two shaft pins, two bearing seats and a length-adjustable telescopic device, the two bearing seats are respectively fixedly arranged on one side surface of the reinforcing rib plate and the upper surface of the machine base, the two ends of the telescopic device are respectively movably hinged with the two bearing seats, two sides of the reinforcing rib plate are used for limiting the reinforcing rib plate, further the rotating gear box is limited, locking of the rotating mechanism is achieved, and the problem that gears meshed in the rotating gear box are subjected to relatively large shearing force and further damaged due to the fact that the gears are suspended under the condition of large sea storms is avoided.
Description
Technical Field
The invention relates to the technical field of ship manufacturing, in particular to a locking device for a rotating mechanism and a floating crane rotating mechanism.
Background
In offshore oil development engineering, it is required to build an oil production platform at sea and install various production and living facilities on the oil production platform, which are all implemented by a crane. The floating crane is also called a crane ship, and the ship is provided with hoisting equipment, can be used for hoisting a large-piece structure, and is an indispensable hoisting and transporting device. The crane ship comprises a fixed crane ship and a rotary crane ship, wherein the crane boom of the fixed crane ship cannot horizontally rotate, the working range of the crane ship is smaller, the mobility is poorer, the operation efficiency is low, and the requirement of hoisting operation cannot be met; the rotating crane ship has 360-degree rotation of the crane arm through the arrangement of the rotating mechanism, has lifting, rotating and luffing mechanisms, expands the operation range, can better meet the requirements of various loading and unloading operations of ports, and has wider application.
The large-scale floating crane in the prior art mainly comprises a ship body, a living area and a floating crane body, wherein the living area and the floating crane body are arranged on the ship body; the floating crane body comprises a floating crane base, a rotating mechanism, a suspension arm, a machine room, a frame and the like, wherein the top of the frame is connected with the end part of the suspension arm through a steel wire rope, a supporting bracket is arranged at the top of a living area, and the suspension arm can be placed on the supporting bracket. For the large-scale mechanism used at present, the rotation mechanism realizes the rotation of the suspension arm through the meshing of gears, a special locking device is not arranged on the rotation mechanism, and after the suspension arm finishes the work of the suspension arm, the suspension arm rotates to the position above the ship body and is locked by the meshing of gears in the rotation mechanism. However, due to the fact that the marine operation is subjected to external forces such as strong wind and surge, the suspension arm is stressed and swung, so that the meshed teeth of the gears are subjected to relatively large shearing force, and the gears are damaged and need to be repaired or replaced; the existing accessible place the davit to the support bracket top at living area top realizes fixing, but the operation takes time for lowering and rising is longer, still can cause more fuel loss simultaneously.
Disclosure of Invention
Accordingly, the present invention is directed to a locking device for a rotating mechanism, which has the advantages of simple structure, simple locking operation, and capability of effectively preventing the rotating mechanism from being damaged by force.
The locking device for the rotating mechanism is applied to the rotating mechanism of the floating crane, and comprises a machine base and a rotating gear box rotatably mounted on the machine base, wherein reinforcing rib plates are arranged on the outer side surface of the rotating gear box in a protruding mode; the locking device for the rotating mechanism comprises at least two locking assemblies, wherein the two locking assemblies are respectively positioned at two sides of the reinforcing rib plate, each locking assembly comprises two shaft pins, two bearing seats and a length-adjustable telescopic device, the two bearing seats are respectively fixedly arranged on one side surface of the reinforcing rib plate and the upper surface of the machine base, and each bearing seat is provided with a bearing hole; the two ends of the telescopic device are respectively provided with a shaft hole, and the two shaft pins correspondingly and movably penetrate through the shaft holes and the bearing holes, so that the two ends of the telescopic device are respectively and movably hinged with the two bearing seats.
According to the locking device for the rotating mechanism, the locking devices are arranged on the two sides of the reinforcing rib plate, the bearing seats are arranged on the side surfaces of the reinforcing rib plate and the upper surface of the base, the two ends of the telescopic device are hinged with the movable of the bearing seats, the two ends of the telescopic device are used for limiting the reinforcing rib plate from the two sides of the reinforcing rib plate, further rotation of the rotating gear box is limited, the locking of the rotating mechanism is realized by the structure under the condition that sea waves are strong, the problem that gears meshed in the rotating gear box are subjected to relatively large shearing force when the floating crane swings under the stress of the relatively large shearing force to damage the gears is avoided, and the problems of long time consumption and extra fuel oil loss caused by re-rising when the floating crane boom is lowered onto the supporting bracket under the condition of strong wind waves in the prior art are avoided; simultaneously, the setting of telescoping device length adjustable for under the circumstances that rotary mechanism stops back circumference position and preset position have the deviation, through the adjustment telescoping device's length, guarantee the shaft hole at telescoping device both ends can with the bearing hole of bearing frame is coaxial, the pivot can wear to locate smoothly the shaft hole and the bearing hole realizes movable hinge, reduces the requirement to the operating accuracy.
Further, the telescopic device comprises a locking shaft and a locking cylinder; the locking shaft comprises a first locking shaft and a second locking shaft; one ends of the first locking shaft and the second locking shaft are radially provided with the shaft holes, the other ends of the first locking shaft and the second locking shaft are circumferentially provided with external threads, and the directions of the external threads of the first locking shaft and the second locking shaft are opposite; the two ends of the locking cylinder are respectively provided with screw holes matched with the external threads of the first locking shaft and the second locking shaft, and are respectively in threaded connection with the first locking shaft and the second locking shaft. By means of the bidirectional threads, the locking cylinder is rotated around the shaft, the penetrating length of the first locking shaft and the second locking shaft from the locking cylinder can be adjusted, and therefore the telescopic device is adjustable in length, simple in structure and convenient to operate.
Further, the telescopic device further comprises a spanner pin, a spanner hole is formed in the locking cylinder along the radial direction, and the spanner pin movably penetrates through the spanner hole. By means of the cooperation setting of the spanner pin and the spanner hole, torque can be prolonged, and the rotation operation of the locking cylinder by workers is facilitated.
Further, the number of the wrench holes is at least 3, the wrench holes are uniformly distributed along the circumferential direction of the locking cylinder and are positioned in the middle of the locking cylinder, and the wrench holes penetrated by the wrench pins are replaced, so that the movement range of workers during rotation operation can be effectively reduced while the circumferential rotation of the locking cylinder is completed, and the rotation operation of the locking cylinder by the workers is further facilitated.
Further, each bearing seat comprises two bearing side plates which are oppositely arranged, and the bearing side plates are fixedly arranged on the upper surface of the machine seat or one side surface of the reinforcing rib plate along the vertical direction; the locking shaft is positioned between the two bearing side plates, and the bearing holes are formed through the positions of the two bearing side plates corresponding to the shaft holes.
Further, the shaft pin comprises a limiting end and a clamping end, wherein the outer side surface of the limiting end is convexly provided with a limiting part, and the outer side surface of the clamping end is provided with an annular groove along the circumferential direction; the outer diameter of the limiting part is larger than the inner diameter of the bearing hole; the bearing seat also comprises a safety plate, wherein the outer diameter of the safety plate is larger than that of the bearing hole, and the safety plate is provided with an open slot and movably clamped in the annular groove. The limiting part is matched with the safety plate to limit the shaft pin, so that the problem that the shaft pin is separated from the bearing hole and the shaft hole and then is locked and invalid is avoided.
Further, the bearing seat further comprises bearing rib plates, and two sides of each bearing rib plate are fixedly connected with the two bearing side plates respectively and fixedly connected with the upper surface of the base or one side surface of each reinforcing rib plate. The arrangement of the bearing rib plates is used for improving the structural stability of the bearing seat.
Further, the reinforcing rib plate comprises two rib plate bodies which are oppositely arranged, and the rib plate bodies are arranged on the outer side surface of the rotary gear box along the vertical direction; the bearing seats of the two locking assemblies are respectively and fixedly arranged on the surfaces of the two opposite sides of the rib plate body.
Further, the reinforcing rib plate further comprises a reinforcing rib column, and two ends of the reinforcing rib column are respectively fixed on the opposite side surfaces of the two rib plate bodies. The arrangement of the reinforcing rib column is used for increasing the structural stability of the rib plate body.
In addition, the embodiment of the invention also provides a floating crane rotating mechanism, which comprises a machine base, a rotating gear box fixed on the machine base and the locking device for the rotating mechanism; the floating crane rotating mechanism is provided with a working state and a locking state, when the floating crane rotating mechanism is in the working state, the telescopic device is horizontally arranged on the upper surface of the base, and one end of the telescopic device is movably hinged with a bearing seat on the upper surface of the base; when the telescopic device is in the locking state, an acute angle is formed between the telescopic device and the upper surface of the stand, and two ends of the telescopic device are respectively and movably hinged with the outer surface of the rotary gear box and the bearing seat on the upper surface of the stand.
The floating crane rotating mechanism provided by the embodiment of the invention can realize the locking of the floating crane rotating mechanism by utilizing the locking device for the rotating mechanism, is simple and convenient to operate, consumes less time, does not need extra fuel loss and has high economic benefit while realizing effective locking so as to reduce the damage of the gear.
For a better understanding and implementation, the present invention is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic view of a locking device for a rotary mechanism according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a telescopic device according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of a wrench pin according to example 1 of the present invention;
FIG. 4 is a schematic view illustrating the length adjustment of the telescopic device according to embodiment 1 of the present invention;
FIG. 5 is a schematic cross-sectional view of a lock cylinder according to embodiment 1 of the present invention;
FIG. 6 is a schematic view of a side plate structure of a bearing according to embodiment 1 of the present invention;
FIG. 7 is a schematic view of a shaft pin according to embodiment 1 of the present invention;
FIG. 8 is a schematic view of a structure of an insurance board according to an embodiment 1 of the present invention;
FIG. 9 is a schematic view of a safety plate according to embodiment 1 of the present invention;
FIG. 10 is a schematic view of a reinforcement rib structure according to embodiment 1 of the present invention;
FIG. 11 is a schematic view of a partial structure of the floating crane rotating mechanism according to embodiment 2 of the present invention in an operating state;
fig. 12 is a schematic view of a partial structure of the floating crane rotating mechanism according to embodiment 2 of the present invention in a locked state;
fig. 13 is a schematic diagram illustrating a length adjustment process of two telescopic devices according to embodiment 2 of the present invention.
Detailed Description
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The floating crane in the embodiment of the invention mainly comprises a ship body, a living area arranged on the ship body, a floating crane body, a power mechanism and other structures; the floating crane body comprises a floating crane base, a rotating mechanism, a suspension arm, a machine room, a frame and the like, wherein the floating crane base is fixedly arranged on a deck surface of a ship body, the rotating mechanism, the machine room and the frame are fixed on the floating crane base, the top of the frame is connected with the end part of the suspension arm through a steel wire rope, a gear transmission mechanism is arranged in the rotating mechanism, and the power mechanism drives the lifting action of the suspension arm through driving the releasing and winding of the steel wire rope, and further drives the rotating operation of the suspension arm through driving the gear transmission mechanism; the living area top is provided with the support bracket, the davit can descend and place on the support bracket.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of a locking device for a rotating mechanism according to embodiment 1 of the present invention, as shown in the drawing, embodiment 1 of the present invention provides a locking device for a rotating mechanism, which is applied to a rotating mechanism of a floating crane, the rotating mechanism 10 includes a base 12 and a rotating gear box 14 rotatably mounted on the base 12, a gear transmission mechanism is disposed in the rotating gear box 14, and reinforcing ribs 16 are disposed on the outer surface of the rotating gear box 14 in a protruding manner. The locking device for the rotating mechanism comprises at least two locking assemblies 20, wherein the two locking assemblies 20 are respectively positioned at two sides of the reinforcing rib plate 16, each locking assembly 20 comprises two shaft pins 21, two bearing seats 22 and a length-adjustable telescopic device 23, the two bearing seats 22 are respectively fixedly arranged on one side surface of the reinforcing rib plate 16 and the upper surface of the machine base 12, and each bearing seat 22 is provided with a bearing hole 221; the two ends of the telescopic device 23 are respectively provided with a shaft hole 231, and the two shaft pins 21 correspondingly and movably penetrate through the shaft hole 231 and the bearing holes 221, so that the two ends of the telescopic device 23 are respectively and movably hinged with the two bearing seats 22.
According to the locking device for the rotating mechanism, which is disclosed by the embodiment 1, the locking devices are arranged on the two sides of the reinforcing rib plate, the bearing seats are arranged on the side surfaces of the reinforcing rib plate and the upper surface of the base, the two ends of the telescopic device are hinged with the movable of the bearing seats, the two sides of the reinforcing rib plate are used for limiting the reinforcing rib plate, the rotation of the rotating gear box is further limited, the locking of the rotating mechanism is realized by using the structure under the condition that the sea storm is strong, the problem that gears meshed in the rotating gear box are subjected to relatively large shearing force when the floating crane swings under the stress of the force to damage the gears is avoided, and the problems of long time consumption and extra fuel oil loss caused by re-rising when the floating crane boom is lowered onto the supporting bracket under the condition of strong storm in the prior art are avoided; simultaneously, the setting of telescoping device length adjustable for under the circumstances that rotary mechanism stops back circumference position and preset position have the deviation, through the adjustment telescoping device's length, guarantee the shaft hole at telescoping device both ends can with the bearing hole of bearing frame is coaxial, the pivot can wear to locate smoothly the shaft hole and the bearing hole realizes movable hinge, reduces the requirement to the operating accuracy.
Specifically, referring to fig. 2, fig. 2 is a schematic structural diagram of the telescopic device according to embodiment 1 of the present invention, and as shown in the drawing, the telescopic device 23 includes a locking shaft 232 and a locking cylinder 233; the locking shaft 232 includes a first locking shaft and a second locking shaft; one ends of the first locking shaft and the second locking shaft are radially provided with shaft holes 231, the other ends of the first locking shaft and the second locking shaft are circumferentially provided with external threads, and the directions of the external threads of the first locking shaft and the second locking shaft are opposite; the two ends of the locking cylinder 233 are respectively provided with screw holes matched with the external screw threads of the first locking shaft and the second locking shaft, and are respectively in threaded connection with the first locking shaft and the second locking shaft. By means of the bidirectional threads, the penetrating length of the first locking shaft and the second locking shaft in the self-locking barrel 233 can be adjusted by rotating the locking barrel 233 around the shaft, and further the length of the telescopic device 23 can be adjusted, and the telescopic device is simple in structure and convenient to operate.
As an alternative embodiment, in this embodiment, the telescopic device 23 further includes a wrench pin 234, please refer to fig. 3-4, fig. 3 is a schematic view of the wrench pin structure according to embodiment 1 of the present invention, fig. 4 is a schematic view of the telescopic device length adjustment according to embodiment 1 of the present invention, the locking cylinder 233 is provided with a plurality of wrench holes 235 along a radial direction, and the wrench pin 234 movably penetrates the wrench holes 235. As shown in fig. 4, the torque can be prolonged by the engagement of the spanner pin 234 and the spanner hole 235, so that the operator can easily rotate the locking cylinder 233. Further preferably, the number of wrench holes 235 is at least 3, referring to fig. 5, fig. 5 is a schematic cross-sectional view of the lock cylinder according to embodiment 1 of the present invention, and as shown in the drawing, the number of wrench holes 235 is 4 in the present embodiment, which are uniformly distributed along the circumference of the lock cylinder 233 and are located at the middle of the lock cylinder 233. Through the spanner hole 235 penetrated by the replacement spanner pin 234, the movement range of the working personnel during the rotation operation can be effectively reduced while the circumferential rotation of the locking cylinder is completed, and the rotation operation of the locking cylinder 233 by the working personnel is further facilitated.
Specifically, each bearing seat 22 includes two opposite bearing side plates 222, referring to fig. 6, fig. 6 is a schematic structural diagram of a bearing side plate according to embodiment 1 of the present invention, and the bearing side plates 222 are fixedly disposed on the upper surface of the base 12 or on one side surface of the reinforcing rib plate 16 along the vertical direction; the locking shaft 232 is located between the two bearing side plates 222, and the bearing holes 221 are formed through the two bearing side plates 222 at positions corresponding to the shaft holes 231. It is further preferred that the bearing housing 22 further includes bearing ribs (not shown) fixedly connected to the two bearing side plates 222 on both sides thereof and fixedly connected to the upper surface of the base 12 or to one side surface of the reinforcing rib 16. The provision of the bearing ribs serves to increase the structural stability of the bearing housing 22.
Referring to fig. 7, fig. 7 is a schematic diagram of a shaft pin structure according to embodiment 1 of the present invention, as shown in the drawing, the shaft pin 21 includes a limiting end and a clamping end, the outer surface of the limiting end is convexly provided with a limiting portion 211, and the outer surface of the clamping end is circumferentially provided with an annular groove 212; the outer diameter of the limiting part 211 is larger than the inner diameter of the bearing hole 221; the bearing seat 22 further includes a safety plate 26, the outer diameter of the safety plate 26 is larger than the outer diameter of the bearing hole 221, and the safety plate 26 is provided with an open groove 261 and movably clamped in the annular groove 212, please refer to fig. 8-9, fig. 8 is a schematic diagram of the safety plate structure according to embodiment 1 of the present invention, fig. 9 is a schematic diagram of the safety plate installation according to embodiment 1 of the present invention, and further preferably, as shown in fig. 8, in this embodiment, the safety plate 26 has a U-shaped structure. The limiting part 211 and the safety plate 26 are matched with each other to limit the shaft pin 21, so that the problem that the shaft pin is separated from the bearing hole 221 and the shaft hole 231 and then the locking failure is caused is avoided.
As an alternative embodiment, referring to fig. 10, fig. 10 is a schematic view of a reinforcement rib structure according to embodiment 1 of the present invention, the reinforcement rib 16 includes two rib bodies 161 disposed opposite to each other, and the rib bodies 161 are disposed on the outer side surface of the rotary gear case 14 in the vertical direction; the bearing seats 22 of the two locking assemblies 20 are fixedly arranged on the opposite side surfaces of the two rib bodies 161 respectively. Further preferably, the reinforcing rib 16 further includes reinforcing rib posts 162, and both ends of the reinforcing rib posts 162 are respectively fixed to opposite side surfaces of the two rib bodies 161. The reinforcement rib column is provided to increase structural stability of the rib body 161. In the embodiment 1 of the present invention, a rib plate body 161 is newly added on one side of the original rib plate body 161 to further cooperate with the arrangement of the reinforcing rib columns, so that the locking assemblies 20 on two sides can be better and more uniformly fixed, and further better locked.
Example 2
Embodiment 2 of the present invention provides a floating crane rotation mechanism 10, which comprises a frame 12, a rotation gear box 14 fixed on the frame 12, and a locking device for the rotation mechanism; in the present embodiment, the bearing housing 22 includes a first bearing housing fixedly disposed on one side surface of the reinforcement rib 16 and a second bearing housing fixedly disposed on the upper surface of the base 12; referring to fig. 11, fig. 11 is a schematic view of a part of the floating crane rotating mechanism in the working state according to embodiment 2 of the present invention, and when the floating crane rotating mechanism is in the working state, as shown in the drawing, the telescopic device 23 is horizontally placed on the upper surface of the base 12, one end of the telescopic device is movably hinged with the second bearing seat, the other end of the telescopic device is a movable end, and at this moment, the rotating gear box 14 is in the movable state, and the ship body power mechanism is used to drive the wire rope to be put and wound, and the meshing transmission of the gear transmission mechanism in the rotating gear box 14 is used to control the boom of the floating crane to rotate, lift, become amplitude, and the like, so as to complete the operations of lifting, loading and unloading, etc.
When the offshore wind power is strong and the surge is large, the floating crane rotating mechanism 10 needs to be locked for safety; the specific locking method is as follows:
The worker operates the floating crane rotating mechanism 10 to rotate to a preset position, and correspondingly positions the reinforcing rib plate 16 between the two telescopic devices 23 horizontally arranged on the upper surface of the stand 12; lifting one end of the telescopic device 23 which is not movably hinged with the bearing seat 22, enabling the end to be positioned between two bearing side plates 222 of the first bearing seat, further penetrating the shaft pin 21 between the bearing hole 221 and the shaft hole 231, and then installing the safety plate 26 on the shaft pin 21 so as to prevent the shaft pin 21 from falling off; referring to fig. 12, fig. 12 is a schematic view of a partial structure of the floating crane rotating mechanism in a locked state according to embodiment 2 of the present invention, wherein two telescopic devices 23 form an acute angle with the upper surface of the base 12, and two ends of the telescopic devices are movably hinged with the first bearing seat and the second bearing seat respectively, and the floating crane rotating mechanism 10 is in the locked state. The locking device 23, the reinforcing rib plate 16 and the machine base 12 can form stable triangular support structures on two sides of the reinforcing rib plate 16, so that the reinforcing rib plate 16 can be limited and fixed on two sides of the reinforcing rib plate to limit circumferential rotation of the floating crane rotating mechanism 10, the purpose of locking the floating crane rotating mechanism is achieved, and further the problem that gears meshed in the rotating gear box 14 are subjected to relatively large shearing force when the suspension arm of the floating crane swings under stress, and then the gears are damaged is effectively avoided.
After stopping, the circumferential position of the floating crane rotating mechanism 10 may deviate from the preset position, when the deviation from the preset position is within the allowable range, the wrench pin 234 is inserted into one wrench hole 235 of the locking barrel 233 by adjusting the length of the telescopic device 23, and is rotated by 90 ° circumferentially, then the wrench holes 235 penetrated by the wrench pin 234 are replaced, and the locking barrel 233 can be rotated by 360 ° circumferentially by replacing the four wrench holes 235 in turn. Referring to fig. 13, fig. 13 is a schematic diagram illustrating a length adjustment process of two telescopic devices according to embodiment 2 of the present invention, in which the locking shaft 232 is matched with two locking shafts 232 with opposite threads to increase the length of the locking shafts 232 penetrating from the locking shafts 233, so that the distance L1 between the shaft holes 231 of the two locking shafts 232 of the same telescopic device 23 is increased to L1', thereby achieving the purpose of increasing the length of the telescopic device 23; similarly, the distance L2 between the shaft holes 231 of the two locking shafts 232 of the other telescopic device 23 can be reduced to L2' by reversely rotating the locking cylinder 233, so as to achieve the purpose of reducing the length of the telescopic device 23. Through this setting, can be located the length of reinforcing rib 16 both sides telescoping device 23 and adjust, ensure that both sides telescoping device 23 can with the first bearing frame realizes movable hinge, effectively reduce the requirement to the floating crane rotary mechanism stop position accuracy. When the deviation between the circumferential position of the rotating mechanism and the preset position exceeds the adjustment range of the telescopic device after stopping, the floating crane rotating mechanism needs to be rotated again for correction.
When the wind force and the wind wave reach a certain degree, the suspension arm of the floating crane can be further lowered onto the support bracket above the living area of the ship body, and the floating crane rotating mechanism can be protected to the greatest extent by matching with the locking device for the rotating mechanism.
According to the floating crane rotating mechanism disclosed by the embodiment 2, the locking device for the rotating mechanism is arranged, so that the floating crane rotating mechanism can be effectively locked, the problem of repair cost caused by damage of gears due to mutual engagement stress is avoided, the problem of time and oil consumption caused by the fact that when the lower suspension arm is required to be protected and the suspension arm is lifted when the suspension arm is continuously used in the prior art is effectively solved, and the economic benefit is high; in addition, the whole weight of the locking device for the rotating mechanism is about 8kg, and the locking operation can be carried out by a single person, so that the operation is simple and convenient, and the time consumption is short.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (10)
1. The utility model provides a locking device for rotary mechanism which is applied to the rotary mechanism of floating crane which characterized in that: the rotating mechanism comprises a machine base and a rotating gear box rotatably arranged on the machine base, and reinforcing rib plates are arranged on the outer side surface of the rotating gear box in a protruding mode; the locking device for the rotating mechanism comprises at least two locking assemblies, wherein the two locking assemblies are respectively positioned at two sides of the reinforcing rib plate, each locking assembly comprises two shaft pins, two bearing seats and a length-adjustable telescopic device, the two bearing seats are respectively fixedly arranged on one side surface of the reinforcing rib plate and the upper surface of the machine base, and each bearing seat is provided with a bearing hole; the two ends of the telescopic device are respectively provided with a shaft hole, and the two shaft pins correspondingly and movably penetrate through the shaft holes and the bearing holes, so that the two ends of the telescopic device are respectively and movably hinged with the two bearing seats.
2. The locking device for a rotating mechanism according to claim 1, wherein: the telescopic device comprises a locking shaft and a locking cylinder; the locking shaft comprises a first locking shaft and a second locking shaft; one ends of the first locking shaft and the second locking shaft are radially provided with the shaft holes, the other ends of the first locking shaft and the second locking shaft are circumferentially provided with external threads, and the directions of the external threads of the first locking shaft and the second locking shaft are opposite; the two ends of the locking cylinder are respectively provided with screw holes matched with the external threads of the first locking shaft and the second locking shaft, and are respectively in threaded connection with the first locking shaft and the second locking shaft.
3. The locking device for a rotating mechanism according to claim 2, wherein: the telescopic device further comprises a spanner pin, a spanner hole is formed in the locking cylinder along the radial direction, and the spanner pin movably penetrates through the spanner hole.
4. A locking device for a rotary mechanism according to claim 3, wherein: the number of the spanner holes is at least 3, and the spanner holes are uniformly distributed along the circumferential direction of the locking cylinder and positioned in the middle of the locking cylinder.
5. The locking device for a rotating mechanism according to claim 2, wherein: each bearing seat comprises two bearing side plates which are oppositely arranged, and the bearing side plates are fixedly arranged on the upper surface of the machine seat or the surface of one side of the reinforcing rib plate along the vertical direction; the locking shaft is positioned between the two bearing side plates, and the bearing holes are formed through the positions of the two bearing side plates corresponding to the shaft holes.
6. The locking device for a rotating mechanism according to claim 5, wherein: the shaft pin comprises a limiting end and a clamping end, wherein the outer side surface of the limiting end is convexly provided with a limiting part, and the outer side surface of the clamping end is provided with an annular groove along the circumferential direction; the outer diameter of the limiting part is larger than the inner diameter of the bearing hole; the bearing seat also comprises a safety plate, wherein the outer diameter of the safety plate is larger than that of the bearing hole, and the safety plate is provided with an open slot and movably clamped in the annular groove.
7. The locking device for a rotating mechanism according to claim 5, wherein: the bearing seat also comprises bearing rib plates, and two sides of each bearing rib plate are fixedly connected with the two bearing side plates respectively and fixedly connected with the upper surface of the base or one side surface of the reinforcing rib plate.
8. The locking device for a rotating mechanism according to claim 1, wherein: the reinforcing rib plate comprises two rib plate bodies which are oppositely arranged, and the rib plate bodies are arranged on the outer side surface of the rotary gear box along the vertical direction; the bearing seats of the two locking assemblies are respectively and fixedly arranged on the surfaces of the two opposite sides of the rib plate body.
9. The locking device for a rotating mechanism according to claim 8, wherein: the reinforcing rib plate further comprises reinforcing rib columns, and two ends of each reinforcing rib column are respectively fixed on one side surface of the two rib plate bodies, which are opposite.
10. The utility model provides a floating crane rotary mechanism which characterized in that: comprising a stand, a rotary gear box fixed on the stand, and a locking device for a rotary mechanism according to any one of claims 1 to 9; the floating crane rotating mechanism is provided with a working state and a locking state, when the floating crane rotating mechanism is in the working state, the telescopic device is horizontally arranged on the upper surface of the base, and one end of the telescopic device is movably hinged with a bearing seat on the upper surface of the base; when the telescopic device is in the locking state, an acute angle is formed between the telescopic device and the upper surface of the stand, and two ends of the telescopic device are respectively and movably hinged with the outer surface of the rotary gear box and the bearing seat on the upper surface of the stand.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110998437.9A CN113896119B (en) | 2021-08-27 | 2021-08-27 | Locking device for rotating mechanism and floating crane rotating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110998437.9A CN113896119B (en) | 2021-08-27 | 2021-08-27 | Locking device for rotating mechanism and floating crane rotating mechanism |
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| CN113896119A CN113896119A (en) | 2022-01-07 |
| CN113896119B true CN113896119B (en) | 2024-06-14 |
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| CN114751324B (en) * | 2022-06-15 | 2022-09-13 | 启东浪之源海洋技术服务有限公司 | Ocean loop wheel machine anchoring device and loop wheel machine |
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| CN107364797A (en) * | 2017-08-28 | 2017-11-21 | 沈阳安洋自控设备有限公司 | A kind of joint action table rotating base |
| CN109573861A (en) * | 2018-11-20 | 2019-04-05 | 衢州学院 | A kind of marine crane barge system based on permanent magnet synchronous motor compensation of undulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205472329U (en) * | 2016-01-15 | 2016-08-17 | 国华（河北）新能源有限公司 | Line hangs equipment |
| CN213360321U (en) * | 2020-09-29 | 2021-06-04 | 极能电气(苏州)有限公司 | Gear box body of wind driven generator |
| CN112340618A (en) * | 2020-10-20 | 2021-02-09 | 江苏海上龙源风力发电有限公司 | Process for replacing large part of offshore wind turbine generator in intertidal zone of high beach surface |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364797A (en) * | 2017-08-28 | 2017-11-21 | 沈阳安洋自控设备有限公司 | A kind of joint action table rotating base |
| CN109573861A (en) * | 2018-11-20 | 2019-04-05 | 衢州学院 | A kind of marine crane barge system based on permanent magnet synchronous motor compensation of undulation |
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