CN118322132B

CN118322132B - Bolt disassembling device and large-torque cylinder disassembling equipment

Info

Publication number: CN118322132B
Application number: CN202410768545.0A
Authority: CN
Inventors: 李传军; 黄磊; 杨林
Original assignee: Changzhou Dazhuo Testing Equipment Co ltd
Current assignee: Changzhou Dazhuo Testing Equipment Co ltd
Priority date: 2024-06-14
Filing date: 2024-06-14
Publication date: 2024-10-11
Anticipated expiration: 2044-06-14
Also published as: CN118322132A

Abstract

The invention relates to the technical field of hydraulic cylinder disassembly, in particular to a bolt disassembly device and high-torque cylinder disassembly equipment, which comprises a base and at least one group of disassembly components arranged on the base, wherein the disassembly components comprise a sleeve and a wrench; the sleeve is rotationally arranged around the axis of the shaft; the wrench comprises a dismounting part and a force application part which are arranged in an L-shaped structure, wherein the force application part is arranged in the sleeve, and the force application part performs relative motion in the sleeve; the dismounting part is loosened when the bolt is positioned in a set range based on the rotation of the sleeve relative to the base and the movement of the force application part relative to the sleeve; through setting up sleeve and spanner, utilize the rotation motion of pneumatic cylinder to realize the dismantlement of bolt, transfer the kinetic energy of pneumatic cylinder rotation to the spanner effectively, drive the spanner driven, realized the loosening of bolt to simplified the dismantlement process of pneumatic cylinder, not only can improve maintenance efficiency, reduced cost of maintenance, can also reduce maintenance personnel's intensity of labour, have fine application prospect.

Description

Bolt disassembling device and large-torque cylinder disassembling equipment

Technical Field

The invention relates to the technical field of hydraulic cylinder disassembly, in particular to a bolt disassembly device and high-torque cylinder disassembly equipment.

Background

The hydraulic cylinder is a common hydraulic executive component and is generally used for converting hydraulic energy into mechanical motion energy, as shown in fig. 1, the hydraulic cylinder comprises a cylinder barrel and a piston rod arranged in the cylinder barrel, an end cover is arranged at one end of the cylinder barrel extending out of the piston rod, the end cover is generally connected with the cylinder barrel by bolts, the end part of the piston rod and the end part of the cylinder barrel are respectively provided with a connecting lug hole, a piston nut of the piston is fixed on the piston rod, and the piston rod drives the piston at the end part to do telescopic motion in the cylinder barrel under the driving of internal hydraulic oil pressure, so that the hydraulic energy is converted into mechanical motion energy.

However, when the hydraulic cylinder is disassembled, the structural size and the mass of the hydraulic cylinder are large, and particularly after the hydraulic cylinder runs for a long time, the fastening force of the bolt is increased possibly due to corrosion or other factors, so that the disassembly difficulty is increased, the length of a lengthened wrench is adopted for loosening the bolt on the end cover at present, so that the bolt on the end cover is loosened in a moment increasing manner, but due to the large structural size of the hydraulic cylinder, even if the tail of the wrench is lengthened, an operator still needs great force to loosen the bolt, and therefore, the disassembly of the hydraulic cylinder is time-consuming and labor-consuming and the disassembly efficiency is low.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention provides a bolt disassembling device and high-torque cylinder disassembling equipment, so that the problems pointed out in the background technology are effectively solved.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

A bolt removing apparatus comprising:

The dismounting device comprises a base and at least one group of dismounting components arranged on the base, wherein the dismounting components comprise a sleeve and a wrench;

a shaft is arranged between the sleeve and the base, and the sleeve is rotatably arranged around the axis of the shaft;

The wrench comprises a dismounting part and a force application part which are arranged in an L-shaped structure, wherein the force application part is arranged in the sleeve, and the force application part moves relatively in the sleeve;

The dismounting part is based on the rotation of the sleeve relative to the base and the movement of the force application part relative to the sleeve, so that the countersunk holes which are correspondingly inserted into the heads of the bolts for applying force to the spanner in the working state are met, and the bolts are positioned in a set range.

Further, the force application part is arranged in the sleeve in a relative movement manner, specifically, the force application part is arranged in the sleeve in a linear expansion manner, and the length direction of the detaching part is always parallel to the axis direction of the shaft before reaching the working state.

Further, the device also comprises a reset component which is arranged in a cavity sealed at one end of the sleeve, and a limiting ring is arranged in the cavity;

The reset assembly comprises a reset sleeve fixedly arranged on the force application part and a plurality of limiting pieces fixedly arranged relative to the reset sleeve, and the limiting pieces are elastically telescopic along the direction perpendicular to the telescopic movement of the force application part;

the reset assembly further comprises an elastic piece positioned at the bottom of the reset sleeve in the cavity, the elastic piece is used for resetting the wrench which is retracted relative to the sleeve in a state of bearing the extrusion force of the reset sleeve, the reset assembly comprises a limit position, and the limit piece elastically stretches into the limit ring in the limit position;

and the angle resetting structure is arranged on the shaft and is used for resetting the rotating wrench angle.

The invention also comprises a large-torque cylinder dismantling device which comprises a frame, a rod removing device, a cylinder head clamping device, a supporting device, a cylinder tail clamping device, a first power device and a bolt dismantling device;

The frame is directly or indirectly arranged on a horizontal plane and comprises a linear guide structure;

the rod removing device, the cylinder head clamping device, the bolt detaching device and the supporting device are sequentially arranged on the linear guide structure and can slide along the linear guide structure;

the cylinder tail clamping device and the first power device are arranged at one end, far away from the rod removing device, of the frame, and the first power device is used for driving the cylinder tail clamping device to rotate so as to drive the hydraulic cylinder to rotate;

the cylinder head clamping device is used for fixing the end part of the piston rod;

the cylinder tail clamping device is used for fixing the end part of the cylinder barrel;

The rod removing device is used for removing the piston rod from the cylinder barrel;

the supporting device is at least provided with two groups for respectively supporting the piston rod and the cylinder barrel in a lifting manner.

The invention also comprises another large-torque cylinder dismantling device which comprises a frame, a rod removing device, a cylinder head clamping device, a supporting device, a cylinder tail clamping device, a first power device, a second power device and a bolt dismantling device;

The supporting device is provided with at least two groups for respectively supporting the piston rod and the cylinder barrel in a lifting manner;

the second power device is used for driving the bolt disassembling device to reciprocate on the linear guide structure, so that the bolt disassembling device is close to or far away from the end cover, and loosening of a plurality of bolts is realized;

And the first power device and the second power device are controlled in a correlated way.

Further, the cylinder head clamping device and the cylinder tail clamping device both comprise a first base, and two locking plates and adjusting components which are arranged on the first base;

the adjusting component synchronously drives the two locking plates to be close to or far away from each other;

One side of each locking plate, which is close to the cylinder, is provided with a positioning guide piece which is inserted into a lug hole at the end part of the piston rod or the end part of the cylinder barrel.

Further, the positioning guide piece comprises a conical table and a fixed seat;

The locking plate is provided with a first through hole, the conical table is provided with a first round table, the fixing seat is provided with a second round table, the first round table and the second round table are respectively inserted into two sides of the first through hole, and the conical table and the fixing seat are mutually locked;

A locking rod is arranged between the two positioning guide pieces and used for locking the two locking plates.

Further, the cylinder tail clamping device is further provided with a V-shaped block structure for disassembling the piston nut, the V-shaped block structure is arranged on one side, opposite to the locking plates, of the two locking plates, the two locking plates drive the two V-shaped block structures to be close to or far away from the piston nut, and the first power device drives the piston nut to rotate, so that the piston nut is disassembled.

Further, the supporting device comprises a second base, a lifting end and a height adjusting assembly;

The second base is arranged on the linear guide structure, the height adjusting assembly is arranged on the second base, and the lifting end is arranged at the top of the height adjusting assembly;

The lifting end is used for lifting the piston rod and the cylinder barrel and comprises rollers which are arranged in an arc shape;

the height adjusting component is used for adjusting the height of the lifting end.

Further, the rod removing device comprises a third base and a telescopic piece arranged on the third base;

the third base moves along the linear guide structure and is used for driving the telescopic piece to move;

the end part of the telescopic piece is detachably connected with the cylinder head clamping device;

The cylinder head clamping device is driven to be far away from one side of the cylinder barrel by gradually moving the third base and the telescopic piece, so that the piston rod is separated from the cylinder barrel.

By the technical scheme of the invention, the following technical effects can be realized:

The wrench is driven by the rotation of the hydraulic cylinder, the position of the force application part is changed, the disassembly part is driven to move, so that the bolt is driven to loosen, the wrench is driven to stretch out and draw back in the sleeve and rotate along the shaft by the kinetic energy of the rotation of the hydraulic cylinder, the disassembly part of the wrench rotates relative to the head of the bolt, the purpose of driving the bolt to loosen is achieved, the wrench is driven by the rotation principle, a large moment is not required to be applied manually, an additional power source is not required, the labor intensity of operators is reduced, and the disassembly efficiency is improved;

Through setting up sleeve and spanner, utilize the rotation motion of pneumatic cylinder to realize the dismantlement of bolt, transfer the kinetic energy of pneumatic cylinder rotation to the spanner effectively, drive the spanner driven, realized the loosening of bolt to simplified the dismantlement process of pneumatic cylinder, not only can improve maintenance efficiency, reduced cost of maintenance, can also reduce maintenance personnel's intensity of labour, have fine application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic diagram of a hydraulic cylinder in the background art;

FIG. 2 is a schematic view of a construction of a bolt removing apparatus;

FIG. 3 is a schematic diagram of the cylinder spinning driving the wrench to be driven;

FIG. 4 is a schematic view of an angle reset structure;

FIG. 5 is a schematic view of the reset assembly assembled on a wrench;

FIG. 6 is a schematic diagram of a reset assembly;

FIG. 7 is a schematic diagram of a high torque cylinder removing apparatus;

FIG. 8 is a schematic structural view of a cylinder head clamping device or a cylinder tail clamping device;

FIG. 9 is a schematic view of the positioning guide;

FIG. 10 is a schematic view of the structure of the tail clamping device (after replacing the V-block structure);

FIG. 11 is a schematic view of the structure of the support device;

FIG. 12 is a schematic diagram of the method of operating the high torque cylinder removing apparatus in step S10;

fig. 13 is a schematic diagram of the working method of the large torque cylinder dismantling device in step S30;

FIG. 14 is a schematic diagram of the method of operating the high torque cylinder removing apparatus in step S40;

fig. 15 is a schematic diagram of the working method of the large torque cylinder removing apparatus in step S50.

Reference numerals: 1. a base; 2. a bracket; 3. a sleeve; 31. a limiting ring; 4. a wrench; 41. a detaching portion; 42. a force application part; 5. a shaft; 6. a reset assembly; 61. resetting the sleeve; 611. an adjusting nut; 62. a limiting piece; 63. an elastic member; 64. a torsion spring; 65. a limit column;

100. The bolt removing device; 200. a frame; 210. a linear guide structure; 300. a rod removing device; 310. a third base; 320. a telescoping member; 400. a cylinder head clamping device; 410. a first base; 420. a locking plate; 420a, a first through hole; 430. an adjustment assembly; 431. a screw rod; 440. positioning the guide member; 441. a conical table; 441a, a first round table; 442. a fixing seat; 442a, a second round table; 450. a locking lever; 500. a support device; 510. a second base; 520. a lifting end; 521. a roller; 530. a height adjustment assembly; 600. a cylinder tail clamping device; 610. a V-shaped block structure; 700. a first power unit;

00. A hydraulic cylinder; 01. a cylinder; 02. an end cap; 021. a bolt; 03. a piston rod; 04. a piston; 05. a piston nut; 06. a piston rod end; 061. ear hanging holes; 07. a cylinder end.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 2 to 6: a bolt removing apparatus comprising: the disassembling device comprises a base 1 and at least one group of disassembling components arranged on the base 1, wherein the disassembling components comprise a sleeve 3 and a wrench 4;

A shaft 5 is arranged between the sleeve 3 and the base 1, and the sleeve 3 is rotatably arranged around the axis of the shaft 5;

the wrench 4 comprises a dismounting part 41 and a force application part 42 which are arranged in an L-shaped structure, wherein the force application part 42 is partially arranged in the sleeve 3, and the force application part 42 performs relative movement in the sleeve 3;

the dismounting portion 41 is based on the rotation of the sleeve 3 relative to the base 1 and the movement of the force application portion 42 relative to the sleeve 3, so that the bolt 021 is located in a set range in the counter-sunk hole for the spanner 4 to apply force when the head of the bolt 021 is correspondingly inserted in the working state.

Specifically, the rotation of the hydraulic cylinder 00 drives the wrench 4 to be driven, the position of the force application part 42 is changed, the dismounting part 41 is driven to move, so that the loosening of the bolt 021 is driven, the wrench 4 is driven to stretch out and draw back in the sleeve 3 and rotate along the shaft 5 by utilizing the kinetic energy of the rotation of the hydraulic cylinder 00, the dismounting part 41 of the wrench 4 rotates relative to the head of the bolt 021, the purpose of driving the bolt 021 to loosen is achieved, the wrench 4 is driven by adopting the rotation principle, a large moment is not required to be applied manually, an additional power source is not required, the labor intensity of operators is reduced, and the dismounting efficiency is improved.

Through setting up sleeve 3 and spanner 4, utilize the rotation motion of pneumatic cylinder 00 to realize the dismantlement of bolt 021, transfer the kinetic energy of pneumatic cylinder 00 rotation to spanner 4 effectively, drive spanner 4 driven, realized the not hard up of bolt 021 to simplified the dismantlement process of pneumatic cylinder 00, not only can improve maintenance efficiency, reduce cost of maintenance, can also reduce maintenance personnel's intensity of labour, have fine application prospect.

Specifically, as shown in fig. 3, when the hydraulic cylinder 00 rotates, the bolt 021 on the end cover 02 is driven to rotate along the axis of the hydraulic cylinder 00, so that the distance and angle between the bolt 021 and the shaft 5 change, and the force application part 42 of the wrench 4 is driven to move inwards towards the sleeve 3, meanwhile, the wrench 4 and the sleeve 3 rotate along the axis of the shaft 5, namely in the arrow direction in the figure, the positions of the force application part 42 and the detaching part 41 of the wrench 4 are driven to change, so that the bolt 021 is instantly loosened, the base 1 drives the wrench 4 to move away from the bolt 021, the detaching part 41 of the wrench 4 is pulled out, after the hydraulic cylinder 00 rotates for an angle, the base 1 approaches the bolt 021, the detaching part 41 of the wrench 4 is inserted into the head of the next bolt 021, and the like, and a plurality of bolts 021 around the end cover 02 are loosened;

The two sides of the base 1 are also provided with the brackets 2, and the brackets 2 are vertically and sequentially provided with a plurality of standby through holes for the shaft 5 to pass through so as to adapt to the disassembly of the hydraulic cylinders 00 with different specifications and increase the adaptability;

one embodiment of the disassembling assembly is that a group of disassembling assemblies is arranged, one bolt 021 can be loosened at a time, in the embodiment, the base 1 needs to be moved eight times, and the loosening of the eight bolts 021 is completed;

As another implementation of the disassembling assembly, as shown in FIG. 2, two sets of disassembling assemblies are provided, and the two sets of disassembling assemblies are respectively located at two sides of the end cover 02, so that the loosening of two bolts 021 can be completed by one rotation, in this embodiment, the base 1 needs to be moved four times, and the loosening of eight bolts 021 can be completed, thereby improving the loosening efficiency of the bolts 021.

In the present embodiment, the urging portion 42 is disposed in the sleeve 3 so as to move relatively, specifically, the urging portion 42 is disposed in the sleeve 3 so as to extend and retract linearly, and the longitudinal direction of the detachable portion 41 is always parallel to the axial direction of the shaft 5 before reaching the operating state.

However, as can be seen from the above device, after each pair of bolts 021 is loosened, the disassembling portion 41 of the wrench 4 needs to be separated from the loosened bolts 021 firstly, at this time, due to the action of gravity, the force applying portion 42 can shrink inwards along the sleeve 3, when the bolts 021 need to be loosened, the disassembling portion 41 of the wrench 4 needs to be manually reset to the initial position, and the difficulty of the operator in aligning the head of the next screw is increased, so the following improvement is made, and the position of the wrench 4 can be automatically reset after each time of loosening the bolts 021;

as a preference of the above embodiment, the device further comprises a reset component 6, which is installed in a cavity sealed at one end of the sleeve 3, and a limiting ring 31 is arranged in the cavity;

The reset assembly 6 comprises a reset sleeve 61 fixedly arranged on the force application part 42, and a plurality of limiting pieces 62 fixedly arranged relative to the reset sleeve 61, wherein the limiting pieces 62 are elastically telescopic along the direction perpendicular to the telescopic movement of the force application part 42;

The reset assembly 6 further comprises an elastic piece 63 positioned at the bottom of the reset sleeve 61 in the cavity, and is used for resetting the spanner 4 retracted relative to the sleeve 3 in a state of bearing the extrusion force of the reset sleeve 61, wherein the reset comprises a limit position, and the limit piece 62 elastically stretches into the limit ring 31 in the limit position;

and an angle resetting structure arranged on the shaft 5 and used for resetting the angle of the rotating wrench 4.

Specifically, as shown in fig. 5 and 6, the limiting piece 62 is a radially arranged sphere and a first spring, and the sphere can be outwards ejected under the action of the first spring, so that the sphere is clamped in the limiting ring 31 to limit the position of the reset sleeve 61 in the sleeve 3; when the hydraulic cylinder 00 rotates to enable the force application part 42 of the wrench 4 to shrink inwards, because the force is relatively large at this time, the ball is compressed inwards by the inner wall of the sleeve 3, after one bolt 021 is loosened, the dismounting part 41 of the wrench 4 is separated from the limit of the head of the bolt 021, the elastic piece 63 at the bottom gives the outward thrust to the reset sleeve 61, and the elastic piece 63 can be a spring or other elastic structures or materials, so that the reset sleeve 61 moves outwards, and the ball is pushed into the limit groove, thereby realizing the reset of the wrench 4 in the length direction; meanwhile, as shown in fig. 4, the angle resetting structure is a torsion spring 64 structure arranged on the shaft 5 and a limit post 65 arranged on the bracket 2, and the automatic resetting of the angle of the wrench 4 is realized by utilizing the elasticity of the torsion spring 64 and the limit post 65; after the spanner 4 loosens the bolt 021 at every turn, the position of the spanner 4 can be automatically reset to the initial position, the operation of manually pulling back the spanner 4 is omitted, the difficulty of operating and aligning the head of the next screw by an operator is reduced, and the disassembly efficiency is improved.

Specifically, the reset sleeve 61 and the force application part 42 are in threaded connection, an adjusting nut 611 is arranged on one side of the reset sleeve 61 extending out of the sleeve 3, and the length of the force application part 42 in the telescopic sleeve is adjusted by rotating the adjusting nut 611, so that the hydraulic cylinder device is suitable for disassembling bolts 021 on end covers 02 with different diameters, hydraulic cylinders 00 with different models can be disassembled, and the universality and the adaptability of the device are enhanced.

The invention also comprises a high-torque cylinder dismantling device, as shown in fig. 7 to 11, which comprises a frame 200, a rod disengaging device 300, a cylinder head clamping device 400, a supporting device 500, a cylinder tail clamping device 600, a first power device 700 and a bolt dismantling device 100;

The frame 200 is directly or indirectly disposed on a horizontal plane and includes a linear guide structure 210;

The rod removing device 300, the cylinder head clamping device 400, the bolt removing device 100 and the supporting device 500 are sequentially arranged on the linear guide structure 210 and can slide along the linear guide structure 210; specifically, the bottom of each device is provided with a sliding block, the sliding block slides on the linear guide structure 210, and the side wall of the sliding block is provided with a fixing piece for positioning after each device is moved to a proper position;

The cylinder tail clamping device 600 and the first power device 700 are arranged at one end of the frame 200 far away from the rod removing device 300, and the first power device 700 is used for driving the cylinder tail clamping device 600 to rotate so as to drive the hydraulic cylinder 00 to rotate;

The cylinder head clamping device 400 is used for fixing the end 06 of the piston rod;

The cylinder tail clamping device 600 is used for fixing the end portion 07 of the cylinder barrel; the safety of the disassembly process is ensured, and the damage caused by the movement of the cylinder body is avoided;

the rod removing device 300 is used for removing the piston rod 03 from the cylinder 01;

The supporting device 500 is provided with at least two groups for respectively supporting the piston rod 03 and the cylinder 01 in a lifting manner; the supporting device 500 lifts and supports the piston rod 03 and the cylinder barrel 01, so that the stability of the disassembling process is ensured.

Through setting up frame 200, take off pole device 300, cylinder end clamping device 400, strutting arrangement 500, jar tail clamping device 600, first power device 700 and tear bolt device 100 open, mutually support between each device, accomplish the not hard up of bolt 021 of end cover 02 respectively, the deviate from of piston rod 03 and the dismantlement of piston nut 05, first power device 700 can be big moment of torsion motor, this device only removes the bolt 021 of end cover 02 and piston nut 05 simultaneously through a power device, can remove the bolt 021 of end cover 02 and piston nut 05 simultaneously, has simplified the operation procedure, has improved the dismantlement efficiency.

The invention also comprises another high-torque cylinder dismantling device, which comprises a frame 200, a rod removing device 300, a cylinder head clamping device 400, a supporting device 500, a cylinder tail clamping device 600, a first power device 700, a second power device (not shown in the figure) and a bolt dismantling device 100;

The rod removing device 300, the cylinder head clamping device 400, the bolt removing device 100 and the supporting device 500 are sequentially arranged on the linear guide structure 210 and can slide along the linear guide structure 210;

The cylinder tail clamping device 600 is used for fixing the end portion 07 of the cylinder barrel;

the supporting device 500 is provided with at least two groups for respectively supporting the piston rod 03 and the cylinder 01 in a lifting manner;

The second power device is used for driving the bolt disassembling device 100 to reciprocate on the linear guide structure 210, so that the bolt disassembling device is close to or far from the end cover 02, and loosening of a plurality of bolts 021 is realized;

Control of the association between the first power plant 700 and the second power plant.

Specifically, the associated control may be implemented by a sensor and a feedback control system, and specifically, the sensor may be used to monitor the operation state of the apparatus, for example, the rotation angle of the hydraulic cylinder 00, the linear movement distance of the bolt removing device 100, etc., and the sensor sends real-time data to the feedback control system, which adjusts the operation of the first power device 700 and the second power device according to the received data.

For example, after the dismounting portion 41 is correspondingly inserted into a counter-sunk hole of the head of the bolt 021 for applying force to the spanner 4, when the sensor detects that the hydraulic cylinder 00 is automatically set to a certain angle, the sensor can judge that the bolt 021 is loosened, at the moment, information is fed back to the first power device 700, the first power device 700 receives feedback suspension, the second power device moves the bolt dismounting device 100 to the side far away from the end cover 02 through power output and is separated from the bolt 021, the separated force application portion 42 is restored to an initial working position under the action of the reset assembly 6, at the moment, the linear movement distance of the bolt dismounting device 100 is transmitted to the first power device 700 through the sensor assembly, the first power device 700 starts to drive the hydraulic cylinder 00 to rotate, the second bolt 021 is rotated to the initial dismounting position of the first bolt 021, the first power device 700 stops, signals are fed back to the second driving device, at the moment, the second driving device drives the bolt dismounting device 100 to move to the side close to the end cover 02 through power output, the spanner 4 is inserted into the second bolt 021, and by analogy, the sensor and the feedback control system can realize automatic monitoring and adjustment of equipment, so that the equipment is always kept in a safe and efficient dismounting process.

As a preference, the cylinder head clamping device 400 and the cylinder tail clamping device 600 each comprise a first base 410 and two locking plates 420 and an adjusting assembly 430 provided on the first base 410;

the adjusting assembly 430 synchronously drives the two locking plates 420 toward or away from each other;

Each locking plate 420 is provided with a positioning guide 440 on the side close to the cylinder which is inserted into a lug hole 061 of the piston rod end 06 or the cylinder tube end 07.

As shown in fig. 8, in this embodiment, the adjusting component 430 may be a screw 431 structure, by setting two locking plates 420 on the same screw 431, rotating the screw 431 to enable the locking plates 420 to slide on the bottom plate, so as to achieve mutual approaching and separating between the two locking plates 420, thereby clamping the end 06 or the end 07 of the cylinder barrel, with simple and convenient operation, the movement of the locking plates 420 can be achieved only by rotating the screw 431, no additional power source is needed, and cost is reduced, and meanwhile, the positioning guide member 440 is inserted into two sides of the lug hole 061 of the end 06 or the end 07 of the cylinder barrel, so as to clamp and fix the end 06 or the end 07 of the cylinder barrel, thereby preventing looseness.

In the present embodiment, the positioning guide 440 includes a tapered table 441 and a fixed seat 442;

the locking plate 420 is provided with a first through hole 420a, the conical table 441 is provided with a first round table 441a, the fixed seat 442 is provided with a second round table 442a, the first round table 441a and the second round table 442a are respectively inserted into two sides of the first through hole 420a, and the conical table 441 and the fixed seat 442 are mutually locked;

a locking lever 450 is provided between the two positioning guides 440 for locking between the two locking plates 420.

Specifically, as shown in fig. 9, in the clamped state, the conical surfaces of the two conical tables 441 abut against two sides of the lug hole 061 of the end 06 of the piston rod or the lug hole 061 of the end 07 of the cylinder, on one hand, the gap between the lug hole 061 of the end 06 of the piston rod or the end 07 of the cylinder and the conical table 441 is prevented from shaking, and the conical table 441 can adapt to the sizes of the lug holes 061 of different end 06 of the piston rod or the lug holes 061 of the end 07 of the cylinder, so that the adaptability is improved; on the other hand, the first circular truncated cone 441a and the second circular truncated cone 442a are respectively inserted into two sides of the first through hole 420a and are in screw connection, so that the positioning guide member 440 and the locking plate 420 are integrated, the strength is increased, and most of force is transmitted to the locking plate 420 through the conical table 441, so that the locking rod 450 is prevented from being deformed under force, and the locking plate is safe and reliable; furthermore, the locking rods 450 penetrate through the positioning guide members 440 on both sides and the hanging lug holes 061 on the middle piston rod end 06 or the cylinder end 07 to lock the two locking plates 420, so that the safety and reliability are improved.

As shown in fig. 10, the cylinder tail clamping device 600 is further provided with a V-shaped block structure 610 for disassembling the piston nut 05, the V-shaped block structure 610 is disposed on one side opposite to the two locking plates 420, the two locking plates 420 drive the two V-shaped block structures 610 to approach or separate from the piston nut 05, and the first power device 700 drives the piston nut 05 to rotate, so that the piston nut 05 is disassembled. Thereby play the purpose of bolt piston nut 05, piston nut 05 is great, utilizes first power device 700 drive and V type piece structure 610, can conveniently quick dismantlement piston nut 05, convenient operation.

As a preference to the above embodiment, as shown in fig. 11, the supporting device 500 includes a second base 510, a lifting end 520, and a height adjusting assembly 530;

The second base 510 is arranged on the linear guide structure 210, the height adjusting component 530 is arranged on the second base 510, and the lifting end 520 is arranged on the top of the height adjusting component 530;

the lifting end 520 is used for lifting the piston rod 03 and the cylinder 01 and comprises rollers 521 which are arranged in a circular arc shape; the circular arc arrangement is beneficial to maintaining the stability and balance of lifting, and the roller 521 is made of soft rubber material to protect the piston rod 03 and the cylinder 01;

the height adjustment assembly 530 is used to adjust the height of the lift end 520.

Specifically, in this embodiment, the height adjusting assembly may include a gear transmission mechanism with an input end and a plurality of bevel gears meshed with each other, where a guide post and a worm for balancing are disposed at the bottom of the input end, and the direction of the force is changed by forward or reverse rotation of the input end and then by the gear transmission mechanism, and finally the lifting end 520 is lifted or lowered by a worm and gear structure, which is convenient and flexible to operate, and other manners such as an oil cylinder, an air cylinder, etc. may also be adopted by the height adjusting assembly 530.

In this embodiment, the rod removing device 300 includes a third base 310 and a telescopic member 320 disposed on the third base 310;

The third base 310 moves along the linear guide structure 210 to drive the telescopic member 320 to move;

the end of the telescopic member 320 is detachably connected with the cylinder head clamping device 400;

the third base 310 and the telescopic piece 320 are moved gradually to drive the cylinder head clamping device 400 to be far away from the cylinder 01 side, so that the piston rod 03 is separated from the cylinder 01.

Specifically, the telescopic member 320 may be an oil cylinder, the third base 310 is movably set, the piston rod 03 can be drawn out step by step for multiple times, when the piston 04 is just started to be removed, the third base 310 is moved to be close to the cylinder head clamping device 400, so that the extending end of the oil cylinder is connected with the cylinder head clamping device 400, the piston rod 03 is removed for a certain distance in the retracting process of the oil cylinder, after the oil cylinder reaches the end of retracting formation, the third base 310 is moved to be far away from the cylinder head clamping device 400, the piston rod 03 is driven to be pulled for another distance by continuously retracting the oil cylinder, and the piston rod 03 is sequentially reciprocated, so that the whole piston rod 03 is gradually removed, the space is saved, the specification of the oil cylinder is reduced, and the cost is reduced.

The invention also comprises a working method of the high-torque cylinder dismantling device, which comprises the following steps:

S10: as shown in fig. 12, the piston rod end 06 and the cylinder tube end 07 are respectively attached to the head clamping device 400 and the tail clamping device 600 so that the hydraulic cylinder 00 is in a horizontal state; specifically, the hydraulic cylinder 00 is lifted, the two locking plates 420 are close to the hanging lugs of the end 06 of the piston rod or the end 07 of the cylinder barrel by rotating the screw 431, the positioning guide member 440 is inserted into the hanging lug holes 061, and then the locking rod 450 passes through the two positioning guide members 440 and the hanging lug holes 061, so that the on-machine locking of the end 06 of the piston rod or the end 07 of the cylinder barrel is realized; the whole hydraulic cylinder 00 is erected, and preparation is made for the rotation of the following hydraulic cylinder 00;

S20: loosening the bolts 021 on the end cover 02 by adopting a bolt disassembling device 100, and disassembling the bolts 021 to separate the end cover 02 from the cylinder barrel 01; the step is used for separating the end cover 02 from the cylinder 01 and preparing for separating the piston rod 03 from the cylinder 01 in the next step, in the step, once the bolt 021 of the end cover 02 is loosened by rotating a certain angle, the bolt 021 can be rotated by adopting a small force, and the bolt 021 can be removed by adopting a conventional mode;

S30: as shown in fig. 13, the piston rod 03 is separated by the rod separating device 300, and the piston rod 03 and the cylinder 01 are supported by the supporting device 500; the step is used for removing the piston rod 03 from the cylinder 01, after the piston rod 03 is removed, one end of the end 06 of the piston rod 03 is arranged on the cylinder head clamping device 400, one end of the end 07 of the cylinder 01 is arranged on the cylinder tail clamping device 600, and the piston rod 03 and the cylinder 01 are easy to be unbalanced, so that at least two supporting devices 500 are adopted to respectively support the piston rod 03 and the cylinder 01 to be in a balanced state;

S40: as shown in fig. 14, the cylinder 01 is hung, the locking of the tail clamping device 600 to the end 07 of the cylinder is canceled, and the cylinder 01 is removed; the step is used for taking down the cylinder barrel 01 and preparing for the subsequent disassembly of the nut of the piston rod 03;

S50: as shown in fig. 15, the piston nut 05 at the tail of the piston rod 03 is locked on the tail clamping device 600, the first power device 700 drives the tail clamping device 600 to rotate, and the piston nut 05 and the piston 04 are removed; the step is used for removing the nut of the piston rod 03, and then sequentially taking out the piston 04 and the end cover 02 from the piston rod 03; the positioning guide member 440 in the cylinder tail clamping device 600 needs to be dismantled, the V-shaped block structure 610 is assembled, referring to FIG. 10, the cylinder tail clamping device 600 can complete the disassembly of the piston nut 05, only part of parts are replaced to realize the disassembly of the piston nut 05, the operation is convenient, and the cost is reduced; the step utilizes great piston nut 05 of dismantlement that big torque motor can be relaxed, can improve and dismantle efficiency, reduces manual operation's needs, also can ensure the security and the reliability of dismantling simultaneously.

S60: the locking of the cylinder head clamping device 400 to the piston rod end 06 is canceled and the piston rod 03 is removed.

The bolts 021 of the end cover 02 are loosened and the piston nuts 05 are removed through one power device, so that the operation flow is simplified, the number of required power devices and the complexity of equipment are reduced, the cost is reduced, the disassembly efficiency is improved, the high economic benefit is achieved, the hydraulic cylinder 00 can be disassembled efficiently, and the time and labor cost are saved.

As a preference of the above embodiment, in step S20, the loosening of the bolt 021 on the end cover 02 by the bolt disassembling device 100 includes the specific steps of:

s21, pushing the bolt disassembling device 100 to a position close to the end cover 02, pulling out the wrench 4 and putting the wrench into the end part of the first bolt 021, and driving the hydraulic cylinder 00 to rotate by the first power device 700 to drive the wrench 4 to be driven, so that the first bolt 021 is loosened;

S22, suspending the first power device 700, pushing the bolt removing device 100 to a position far away from the end cover 02, and starting the first power device 700 to rotate by a specific angle to enable the second bolt 021 to be in the removing position of the first bolt 021;

repeating the steps to finish the loosening of the plurality of bolts 021 of the 02-circle of the end cover.

In the above steps, the reciprocating motion of the bolt removing device 100 and the resetting of the wrench 4 are both performed manually, so that the complexity and cost of the equipment can be reduced, compared with an automation device, the manual operation is simpler and more visual, no additional electric or hydraulic system is needed for controlling the motion, the maintenance and fault removal cost of the equipment is reduced, the reliability and stability of the equipment can be improved by a simple operation mode, and meanwhile, the investment and operation cost are reduced, so that the device is an economical and practical design scheme.

The invention also comprises another working method of the high-torque cylinder dismantling device, which comprises the following steps:

A10: the piston rod end 06 and the cylinder tube end 07 are respectively arranged on the cylinder head clamping device 400 and the cylinder tail clamping device 600, so that the hydraulic cylinder 00 is in a horizontal state;

A20: loosening the bolts 021 on the end cover 02 by adopting a bolt disassembling device 100, and disassembling the bolts 021 to separate the end cover 02 from the cylinder barrel 01;

A30: the piston rod 03 is separated by adopting the rod separating device 300, and the supporting device 500 is used for supporting the piston rod 03 and the cylinder 01 respectively;

a40: the cylinder 01 is hung, the locking of the tail clamping device 600 to the end 07 of the cylinder is canceled, and the cylinder 01 is taken down;

A50: locking a piston nut 05 at the tail of the piston rod 03 on the tail clamping device 600, and driving the tail clamping device 600 to rotate by the first power device 700 to remove the piston nut 05 and the piston 04;

A60: the locking of the cylinder head clamping device 400 to the piston rod end 06 is canceled and the piston rod 03 is removed.

As a preference of the above embodiment, in step a20, the loosening of the bolt 021 on the end cover 02 by the bolt disassembling device 100 comprises the following specific steps:

a21: the second power unit pushes the bolt disassembling device 100 to a position close to the end cover 02, and inserts the spanner 4 into the head of the first bolt 021;

a22: the first power device 700 drives the hydraulic cylinder 00 to rotate to drive the wrench 4 to be driven, so that the first bolt 021 is loosened;

a23: the second power device pushes the bolt dismounting device 100 to a position far away from the end cover 02, and the reset assembly 6 automatically resets the position of the wrench 4;

a24: starting the first power device 700 to rotate a specific angle, so that the second bolt 021 is positioned at the disassembling position of the first bolt 021;

Repeating the steps to automatically finish the loosening of a plurality of bolts 021 of the end cover 02 circles.

In the above steps, the reciprocating motion of the bolt disassembling device 100 and the resetting of the wrench 4 are controlled automatically, and the resetting component 6 enables the wrench 4 to reset automatically after loosening one bolt 021 each time, so that manual operation can be reduced, the accuracy and consistency of operation are improved, and meanwhile, the labor intensity of operators is also reduced; meanwhile, the second power device of the bolt disassembling device 100 and the first power device 700 for controlling the hydraulic cylinder 00 to rotate are controlled in a correlated mode, loosening of the bolts 021 is completed more effectively, the hydraulic cylinder 00 disassembling equipment is more intelligent and reliable, and work efficiency and safety are improved.

The foregoing has outlined and described the basic principles, features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The large-torque cylinder dismantling device is characterized by comprising a frame, a rod removing device, a cylinder head clamping device, a supporting device, a cylinder tail clamping device, a first power device, a second power device and a bolt dismantling device;

The bolt disassembling device is used for disassembling bolts which are positioned at one end of a cylinder barrel of the hydraulic cylinder and used for connecting the end cover and the cylinder barrel, and comprises a base and at least one group of disassembling components arranged on the base, wherein the disassembling components comprise a sleeve and a spanner;

the dismounting part is based on the rotation of the sleeve relative to the base and the movement of the force application part relative to the sleeve, so that the countersunk holes which are correspondingly inserted into the heads of the bolts for applying force to the spanner in the working state are met, and the bolts are positioned in a set range;

The force application part is arranged in the sleeve in a relative motion manner, specifically, the force application part is arranged in the sleeve in a linear expansion manner, and the length direction of the detaching part is always parallel to the axis direction of the shaft before reaching the working state;

the reset assembly is arranged in a cavity sealed at one end of the sleeve, and a limiting ring is arranged in the cavity;

The angle resetting structure is arranged on the shaft and is used for resetting the rotating wrench angle;

2. The high torque cylinder disassembly apparatus of claim 1, wherein the cylinder head clamping device and the cylinder tail clamping device each comprise a first base and two locking plates and adjustment assemblies provided on the first base;

3. The high torque cylinder dismantling device of claim 2, wherein the positioning guide comprises a conical table and a fixed seat;

4. The high-torque cylinder dismantling device according to claim 2, wherein the cylinder tail clamping device is further provided with a V-shaped block structure for dismantling the piston nut, the V-shaped block structure is arranged on one side opposite to the two locking plates, the two locking plates drive the two V-shaped block structures to be close to or far away from the piston nut, and the first power device drives the piston nut to rotate, so that the piston nut is dismantled.

5. The high torque cylinder dismantling device of claim 1, wherein the support means comprises a second base, a lifting end and a height adjustment assembly;

6. The high torque cylinder dismantling device of claim 1, wherein the rod disengaging device comprises a third base and a telescopic piece arranged on the third base;