CN115383678B - Disassembling tool for assembling supporting seat of loader - Google Patents
Disassembling tool for assembling supporting seat of loader Download PDFInfo
- Publication number
- CN115383678B CN115383678B CN202211352588.8A CN202211352588A CN115383678B CN 115383678 B CN115383678 B CN 115383678B CN 202211352588 A CN202211352588 A CN 202211352588A CN 115383678 B CN115383678 B CN 115383678B
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- seat
- piston rod
- knocking
- supporting
- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/56—Reuse, recycling or recovery technologies of vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention belongs to the technical field of loading and unloading tools, and particularly relates to a disassembling tool for assembling a supporting seat of a loader. The two hydraulic cylinders and the two shaft pins are positioned on the same axis through the two guide mechanisms, so that the two hydraulic cylinders can push the two shaft pins to be conveniently ejected out from the corresponding support columns and the power arms at the same time, and in the ejection process, the two hydraulic cylinders are supported through the three-axis freely-movable adjusting mechanism, so that in the process that the hydraulic cylinders and the shaft pin axes are overlapped, even if the positions of the two hydraulic cylinders are changed, the adjusting mechanism can support the two hydraulic cylinders.
Description
Technical Field
The invention relates to the technical field of loading and unloading tools, in particular to a disassembling tool for assembling a supporting seat of a loader.
Background
After a loader shovel hopper is used for a period of time, the shovel hopper needs to be detached from a supporting seat connecting position of a loader, the shovel teeth, the hopper shell and the like of the shovel hopper are maintained, when the shovel hopper is detached currently, because the shovel hopper has a certain size, two persons are needed to support columns at two sides of the shovel hopper, the situation that the shovel hopper rolls to the ground directly after detachment is avoided, and the shovel teeth are damaged is caused.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a disassembling tool for assembling a supporting seat of a loader.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a loader supporting seat equipment is with dismantling frock, includes loading mechanism, loading mechanism includes the scraper bowl main part and fixes two support columns at scraper bowl main part back, all rotates on two support columns and installs the power arm, and same pivot is installed to run through on corresponding support column and the power arm, the pivot rotates with support column and power arm to be connected, the bottom of scraper bowl main part is equipped with the layer board, the top movable mounting of layer board has adjustment mechanism, last two separable set who installs symmetric distribution of adjustment mechanism, then when two separable set synchronous elongations will promote two pivots and keep away from each other and break away from on corresponding support column and power arm.
Preferably, the top fixed mounting of layer board has the diaphragm, the bottom fixed mounting of diaphragm has a plurality of universal caster, one side fixed mounting that the diaphragm is close to adjustment mechanism has a plurality of baffles of equidistant distribution.
Preferably, adjustment mechanism slides the setting including the front and back and removes seat one at the layer board top, the top horizontal slidable mounting that removes seat one has removal seat two, it has removal seat three to remove the upper and lower slidable mounting of one side that seat two is close to the scraper bowl main part, and two separable set are all installed and are being kept away from one side that removes seat two in removal seat three.
Preferably, adjustment mechanism still includes two embedded guide rails of installing at the layer board top, and equal sliding sleeve is equipped with the slider on two guide rails, and the top of two sliders all with the bottom fixed connection who removes seat one, remove the top of seat one and seted up spout one, the bottom fixed mounting who removes seat two has slide rail one of slidable mounting in spout one, remove seat two and be close to one side of removing seat three and seted up three spout two, remove seat three and go up fixed mounting and have three slide rail two of slidable mounting in three spout two.
Preferably, the separating assembly comprises a hydraulic cylinder, the hydraulic cylinder comprises a cylinder barrel fixedly mounted on the third moving seat and a piston rod slidably mounted on the cylinder barrel, and a guide mechanism for guiding and a knocking mechanism for knocking the shaft pin are sleeved on the piston rod.
Preferably, guiding mechanism includes that the sliding sleeve establishes the guide cylinder on the piston rod and fixed annular piece of establishing on the piston rod of cover, the guide cylinder is the setting of awl cylindric, fixed mounting has same spring one between guide cylinder and the annular piece, a spring slip cover is established on the piston rod.
Preferably, one end, far away from the cylinder barrel, of the piston rod is movably provided with a top block, one side, close to the piston rod, of the top block is provided with a circular groove, a plurality of spiral ribs distributed in a circumferential array mode are fixedly mounted on the inner wall of the circular groove, and a spiral groove matched with the spiral ribs is formed in the outer side of the piston rod.
Preferably, one side of the top block, which is far away from the piston rod, is provided with raised anti-skid particles.
Preferably, an axial slot is formed in the piston rod, a plurality of sliding holes distributed in a circumferential array are formed in the inner wall of the axial slot, the knocking mechanism comprises a knocking rod which is slidably mounted in the axial slot, the knocking rod penetrates through the top block and is slidably connected with the top block, a second spring is fixedly mounted on the inner wall of the knocking rod and the inner wall of the axial slot, connecting rods are slidably mounted in the sliding holes, one ends, close to each other, of the connecting rods are fixedly connected with the outer side of the knocking rod, one end, far away from each other, of each connecting rod is fixedly mounted with a ring-shaped plate, and a plurality of push-pull electromagnets distributed in a circumferential array are fixedly mounted between the ring-shaped plate and the ring-shaped block.
Compared with the prior art, the invention has the beneficial effects that:
1. the two hydraulic cylinders and the two shaft pins are positioned on the same axis through the two guide mechanisms, so that the two hydraulic cylinders can simultaneously push the two shaft pins to be conveniently ejected out from the corresponding support columns and the power arms, and in the ejection process, the two hydraulic cylinders are supported through the three-axis freely movable adjusting mechanism, so that in the process that the hydraulic cylinders are overlapped with the axis of the shaft pins, even if the positions of the two hydraulic cylinders are changed, the adjusting mechanism can play a role in supporting the two hydraulic cylinders;
2. the knocking mechanism can knock the shaft pin from the corresponding support column and the power arm on the hydraulic cylinder, so that the shaft pin is separated from the support column and the power arm, and meanwhile, the shaft pin can be rotated by the matching of the knocking mechanism and the ejector block in the shaft pin ejecting process, so that the separation of the shaft pin from the support column and the power arm is accelerated.
Drawings
Fig. 1 is a schematic overall structure diagram of a disassembly tool for assembling a support seat of a loader according to the present invention;
FIG. 2 is a schematic view of an overall structure of a disassembly tool for assembling a support seat of a loader according to another aspect of the present invention;
fig. 3 is a schematic structural view of a loading mechanism in a disassembling tool for assembling a supporting seat of a loader provided by the invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
FIG. 5 is a schematic structural view of a supporting plate, an adjusting mechanism and two separating assemblies in the disassembling tool for assembling the supporting seat of the loader provided by the invention;
fig. 6 is a first schematic diagram of a separation structure of an adjusting mechanism in a disassembly tool for assembling a support seat of a loader according to the present invention;
FIG. 7 is a schematic diagram of a second separation structure of an adjusting mechanism in a disassembling tool for assembling a support seat of a loader according to the present invention;
fig. 8 is a first partial structural view of a separation assembly in a disassembly tool for assembling a support seat of a loader according to the present invention;
fig. 9 is a second schematic partial structural view of a separating assembly in a disassembling tool for assembling a support seat of a loader according to the present invention;
fig. 10 is a schematic view of a partial explosion structure of a separation assembly in a disassembly tool for assembling a support seat of a loader according to the present invention;
fig. 11 is a schematic partial sectional view of a piston rod in a disassembly tool for assembling a support seat of a loader according to the present invention.
In the figure: 1. a loading mechanism; 11. a bucket body; 12. a support pillar; 13. a power arm; 14. a shaft pin; 2. a support plate; 21. a transverse plate; 22. a baffle plate; 3. an adjustment mechanism; 31. a first movable seat; 32. a second movable seat; 33. a third movable seat; 34. a guide rail; 35. a slider; 36. a first sliding chute; 37. a first slide rail; 38. a second chute; 39. a second slide rail; 4. a separation assembly; 41. a hydraulic cylinder; 411. a cylinder barrel; 412. a piston rod; 4121. a helical groove; 4122. a shaft groove; 4123. a slide hole; 42. a guide mechanism; 421. a guide cylinder; 422. an annular block; 423. a first spring; 43. a knocking mechanism; 431. a knock bar; 432. a connecting rod; 433. an annular plate; 434. pushing and pulling the electromagnet; 435. a second spring; 44. a top block; 441. and (5) spiral ribs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 11, the present invention provides a technical solution: the utility model provides a loader supporting seat equipment is with dismantling frock, including loading mechanism 1, loading mechanism 1 includes bucket main part 11 and fixes two support columns 12 in bucket main part 11 back, all rotate on two support columns 12 and install power arm 13, same pivot 14 is installed to run through on corresponding support column 12 and the power arm 13, pivot 14 rotates with support column 12 and power arm 13 and is connected, the bottom of bucket main part 11 is equipped with layer board 2, the top movable mounting of layer board 2 has adjustment mechanism 3, install two separator assembly 4 of symmetric distribution on the adjustment mechanism 3, then will promote two pivot 14 and keep away from each other and break away from on corresponding support column 12 and power arm 13 when two separator assembly 4 synchronous elongations.
A transverse plate 21 is fixedly mounted at the top of the supporting plate 2, a plurality of universal casters are fixedly mounted at the bottom of the transverse plate 21, and a plurality of baffle plates 22 which are distributed at equal intervals are fixedly mounted at one side of the transverse plate 21 close to the adjusting mechanism 3.
Further, hooking the bucket body 11 by the blocking plate 22 can prevent the bucket body 11 from turning over after being separated from the power arm 13, and can facilitate the movement of the pallet 2 by providing a plurality of casters.
The adjusting mechanism 3 comprises a first moving seat 31 arranged at the top of the supporting plate 2 in a front-back sliding mode, a second moving seat 32 is arranged at the top of the first moving seat 31 in a left-right sliding mode, a third moving seat 33 is arranged on one side, close to the bucket body 11, of the second moving seat 32 in a vertical sliding mode, and the two separating assemblies 4 are arranged on one side, far away from the second moving seat 32, of the third moving seat 33.
Further, the first moving seat 31 can slide back and forth on the supporting plate 2 through the cooperation of the two sets of guide rails 34 and the sliding blocks 35, the first sliding groove 36 and the first sliding rail 37 can enable the second moving seat 32 to move left and right on the top of the first moving seat 31, the third sliding groove 38 and the second sliding rail 39 can enable the second sliding rail 39 to slide up and down on one side of the second sliding groove 38, and under the guiding action of the guiding mechanism 42, in the process that the two piston rods 412 are continuously away from each other and coincide with the axes of the two shaft pins 14, the first moving seat 31 will correspondingly move back and forth, the second moving seat 32 will correspondingly move left and right, and the third moving seat 33 supporting the two separating assemblies 4 will correspondingly move up and down, so that the two hydraulic cylinders 41 can be finally overlapped with the axes of the two shaft pins 14.
The separating assembly 4 comprises a hydraulic cylinder 41, the hydraulic cylinder 41 comprises a cylinder 411 fixedly mounted on the moving seat three 33 and a piston rod 412 slidably mounted on the cylinder 411, and a guide mechanism 42 for guiding and a knocking mechanism 43 for knocking the shaft pin 14 are sleeved on the piston rod 412.
The guide mechanism 42 includes a guide cylinder 421 slidably fitted over the piston rod 412 and an annular block 422 fixedly fitted over the piston rod 412, the guide cylinder 421 is disposed in a conical shape, a first spring 423 is fixedly installed between the guide cylinder 421 and the annular block 422, and the first spring 423 is slidably fitted over the piston rod 412.
Further, when the device is used, the device is firstly sleeved on the outer side of the corresponding shaft pin 14 through the two guide cylinders 421, then the two piston rods 412 are controlled to be away from each other, the piston rods 412 continuously approach the shaft pin 14, the guide cylinders 421 firstly abut against the power arm 13, then the piston rods 412 continuously approach the shaft pin 14, the piston rods 412 move in the guide cylinders 421, and through guidance in the guide cylinders 421, the axes of the piston rods 412 gradually coincide with the axes of the shaft pins 14, and then the two piston rods 412 which are away from each other push the two shaft pins 14 to be away from each other and to be separated from the corresponding support columns 12 and the power arm 13.
The end of the piston rod 412 far away from the cylinder 411 is movably provided with a top block 44, one side of the top block 44 close to the piston rod 412 is provided with a circular groove, the inner wall of the circular groove is fixedly provided with a plurality of spiral ribs 441 distributed in a circumferential array, and the outer side of the piston rod 412 is provided with a spiral groove 4121 matched with the plurality of spiral ribs 441.
Further, after the top block 44 abuts against the shaft pin 14, as the piston rod 412 continuously approaches the shaft pin 14, the piston rod 412 will continuously enter the top block 44, and through the guidance of the spiral rib 441 and the spiral groove 4121, and because the guiding mechanism 42 tightly attached to the power arm 13 hinders the rotation of the piston rod 412, the piston rod 412 will generate a torsion force of spiral rotation to the shaft pin 14 through the top block 44, so that the shaft pin 14 can also be rotated when the shaft pin 14 is pushed, thereby facilitating the shaft pin 14 to be disengaged from the supporting plate 2 and the power arm 13.
The side of the top block 44 remote from the piston rod 412 is provided with raised anti-slip particles.
Further, the friction between the top block 44 and the shaft pin 14 can be increased by the anti-slip particles, and the relative rotation between the top block 44 and the shaft pin 14 can be prevented when the piston rod 412 abuts against the shaft pin 14.
Further, when the piston rod 412 abuts against the top block 44 on the shaft pin 14, the push-pull electromagnets 434 are energized, the push-pull electromagnets 434 push and pull the annular plate 433 to slide in a reciprocating manner along the axis of the piston rod 412, the connecting rod 432 drives the knocking rod 431 to move in a reciprocating manner through the connecting rods 432, and the knocking rod 431 knocks the shaft pin 14 in the reciprocating movement process, so that the shaft pin 14 is accelerated to fall off from the support column 12 and the power arm 13.
In this embodiment: when the device is used, the two guide cylinders 421 are sleeved on the outer sides of the corresponding shaft pins 14, then the two piston rods 412 are controlled to be away from each other, the piston rods 412 continuously approach the shaft pins 14, the guide cylinders 421 firstly abut against the power arms 13, then the piston rods 412 continuously approach the shaft pins 14, the piston rods 412 move in the guide cylinders 421, the axes of the piston rods 412 are gradually overlapped with the axes of the shaft pins 14 through guidance in the guide cylinders 421, and then the two piston rods 412 which are away from each other push the two shaft pins 14 to be away from each other and separate from the corresponding support columns 12 and the power arms 13;
after the top block 44 abuts against the shaft pin 14, as the piston rod 412 continuously approaches the shaft pin 14, the piston rod 412 continuously enters into the top block 44, and through the guidance of the spiral rib 441 and the spiral groove 4121, the piston rod 412 generates a torsion force of spiral rotation, and then the torsion force is transmitted to the shaft pin 14 through the top block 44, so that the shaft pin 14 can also rotate under the condition of pushing the shaft pin 14, and the shaft pin 14 can be conveniently separated from the supporting plate 2 and the power arm 13;
when the piston rod 412 pushes the top block 44 against the shaft pin 14, the push-pull electromagnets 434 are energized, the push-pull electromagnets 434 push and pull the annular plate 433 to slide in a reciprocating manner along the axis of the piston rod 412, the connecting rod 432 drives the knocking rod 431 to move in a reciprocating manner through the connecting rods 432, and the knocking rod 431 knocks the shaft pin 14 in the reciprocating movement process, so that the shaft pin 14 is accelerated to fall off from the support column 12 and the power arm 13.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a loader supporting seat equipment is with dismantling frock, includes loading mechanism (1), its characterized in that: the loading mechanism (1) comprises a bucket body (11) and two supporting columns (12) fixed to the back of the bucket body (11), power arms (13) are rotatably mounted on the two supporting columns (12), the corresponding supporting columns (12) and the power arms (13) are provided with the same shaft pin (14) in a penetrating mode, the shaft pin (14) is rotatably connected with the supporting columns (12) and the power arms (13), a supporting plate (2) is arranged at the bottom of the bucket body (11), an adjusting mechanism (3) is movably mounted at the top of the supporting plate (2), two separating assemblies (4) which are symmetrically distributed are mounted on the adjusting mechanism (3), and when the two separating assemblies (4) extend synchronously, the two shaft pins (14) are pushed to be away from each other and to be separated from the corresponding supporting columns (12) and the power arms (13);
the adjusting mechanism (3) comprises a first moving seat (31) which is arranged at the top of the supporting plate (2) in a front-back sliding mode, a second moving seat (32) is installed at the top of the first moving seat (31) in a left-right sliding mode, a third moving seat (33) is installed on one side, close to the bucket body (11), of the second moving seat (32) in a vertical sliding mode, and the two separating assemblies (4) are installed on one side, far away from the second moving seat (32), of the third moving seat (33);
the separating assembly (4) comprises a hydraulic cylinder (41), the hydraulic cylinder (41) comprises a cylinder barrel (411) fixedly mounted on the moving seat III (33) and a piston rod (412) slidably mounted on the cylinder barrel (411), and a guide mechanism (42) for guiding and a knocking mechanism (43) for knocking the shaft pin (14) are sleeved on the piston rod (412);
the guide mechanism (42) comprises a guide cylinder (421) which is slidably sleeved on the piston rod (412) and an annular block (422) which is fixedly sleeved on the piston rod (412), the guide cylinder (421) is arranged in a conical cylinder shape, a same spring I (423) is fixedly installed between the guide cylinder (421) and the annular block (422), and the spring I (423) is slidably sleeved on the piston rod (412);
the electric hammer is characterized in that a shaft groove (4122) is formed in the piston rod (412), a plurality of sliding holes (4123) distributed in a circumferential array are formed in the inner wall of the shaft groove (4122), the knocking mechanism (43) comprises a knocking rod (431) which is slidably mounted in the shaft groove (4122), the knocking rod (431) penetrates through the ejector block (44) and is slidably connected with the ejector block (44), the same spring II (435) is fixedly mounted on the inner walls of the knocking rod (431) and the shaft groove (4122), connecting rods (432) are slidably mounted in the sliding holes (4123), one ends, close to each other, of the connecting rods (432) are fixedly connected with the outer side of the knocking rod (431), one end, far away from each other, of the connecting rods (432) is fixedly mounted with the same annular plate (433), and a plurality of annular push-pull electromagnets (434) distributed in a circumferential array are fixedly mounted between the annular plate (433) and the annular block (422).
2. The disassembling tool for assembling the supporting seat of the loader according to claim 1, wherein: the top fixed mounting of layer board (2) has diaphragm (21), the bottom fixed mounting of diaphragm (21) has a plurality of universal caster, one side fixed mounting that diaphragm (21) is close to adjustment mechanism (3) has a plurality of baffles (22) of equidistant distribution.
3. The disassembling tool for assembling the supporting seat of the loader according to claim 1, wherein: adjustment mechanism (3) are still including embedded two guide rails (34) of installing at layer board (2) top, and equal sliding sleeve is equipped with slider (35) on two guide rails (34), the top of two slider (35) all with the bottom fixed connection who removes seat (31), spout (36) have been seted up at the top of removing seat (31), the bottom fixed mounting that removes seat two (32) has slide rail (37) of slidable mounting in spout (36), three spout two (38) have been seted up near one side of removing seat three (33) to removal seat two (32), it has three slide rail two (39) of slidable mounting in three spout two (38) to remove fixed mounting on seat three (33).
4. The disassembling tool for assembling the supporting seat of the loader according to claim 1, wherein: the piston rod (412) is far away from the one end activity of cylinder (411) and is provided with kicking block (44), the circular slot has been seted up to kicking block (44) one side that is close to piston rod (412), fixed mounting has a plurality of spiral muscle (441) that are circumference array distribution on the inner wall of circular slot, the spiral groove (4121) that matches with a plurality of spiral muscle (441) have been seted up in the outside of piston rod (412).
5. The disassembling tool for assembling the supporting seat of the loader according to claim 1, wherein: and one side of the top block (44) far away from the piston rod (412) is provided with raised anti-skid particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352588.8A CN115383678B (en) | 2022-11-01 | 2022-11-01 | Disassembling tool for assembling supporting seat of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352588.8A CN115383678B (en) | 2022-11-01 | 2022-11-01 | Disassembling tool for assembling supporting seat of loader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115383678A CN115383678A (en) | 2022-11-25 |
| CN115383678B true CN115383678B (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211352588.8A Active CN115383678B (en) | 2022-11-01 | 2022-11-01 | Disassembling tool for assembling supporting seat of loader |
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| Country | Link |
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| CN (1) | CN115383678B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117066854B (en) * | 2023-10-17 | 2023-12-29 | 山东明宇重工机械有限公司 | Dismounting device for supporting seat of loader |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2284352A1 (en) * | 1999-09-29 | 2001-03-29 | Rodrigue Boulet | Bolt and nut disassembling apparatus |
| BR112012005371A2 (en) * | 2009-09-11 | 2016-03-29 | Bradken Resources Pty Ltd | disassembly of interconnected components |
| CN211466252U (en) * | 2019-11-14 | 2020-09-11 | 天津修船技术研究所(中国船舶重工集团公司第六三一三研究所) | Hydraulic bolt dismounting device |
| CN216030439U (en) * | 2021-09-24 | 2022-03-15 | 广西万森机械科技有限公司 | Auxiliary positioning device for replacing big arm and small arm of excavator |
| CN216577654U (en) * | 2021-11-01 | 2022-05-24 | 柳州柳工挖掘机有限公司 | Bush press-fitting tool |
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- 2022-11-01 CN CN202211352588.8A patent/CN115383678B/en active Active
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| CN115383678A (en) | 2022-11-25 |
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