Pin shaft dismounting device

Abstract

The utility model relates to the technical field of dismounting tools, and discloses a pin shaft dismounting device which comprises a first jack, a fixing frame and a clamping assembly. In the dismounting process of the pin shaft, the first jack starts to work, the clamping assembly is driven to move through the limiting effect that the fixing frame abuts against or is connected to the mounting component, and the clamping assembly drives the pin shaft to move relative to the mounting component till the pin shaft is dismounted from the mounting component. According to the pin shaft dismounting device, the clamping assembly is connected with the pin shaft in a clamping manner, and after the pin shaft dismounting device is used for dismounting one pin shaft from the mounting part, the clamping relationship between the clamping assembly and the pin shaft can be relieved, namely, the clamping assembly can be separated from the pin shaft, so that the clamping assembly can be fixedly clamped with the next pin shaft to be dismounted; the clamping assembly and the pin shaft are convenient to disassemble and assemble, and the pin shaft disassembling device can be repeatedly used conveniently.

Description

Technical Field

[0001] The present application belongs to the technical field of disassembly tools, and in particular relates to a pin disassembly device. Background Art

[0002] The pin plays the role of connection and fixing, and has a wide range of applications. For example, the vertically assembled pin in the rear leg of a pump truck will rust or wear out and deform after long-term use if it is not properly maintained. When the installation parts connected by the pin need to be disassembled and repaired, the pin will be difficult to remove from the installation parts due to the rust or deformation of the pin.

[0003] The patent with the announcement number CN216967641U discloses a pin disassembly device, including a cylinder, a connecting rod and a sleeve. One end of the connecting rod is connected to the piston rod of the cylinder, and the other end is welded to the pin to be disassembled. The sleeve is sleeved on the piston rod of the cylinder. When formally disassembled, the cylinder retracts the piston rod. Under the limit formed by the sleeve, the piston rod pulls out the pin to be disassembled through the connecting rod. This scheme can pull out the pin that is difficult to disassemble from the installation component. However, in this scheme, the connecting rod and the pin to be disassembled are welded. When one pin is pulled out and the other pin needs to be pulled out again, the way the connecting rod is welded to the pin will make it very inconvenient to disassemble the two, which is not convenient for repeated use of the pin disassembly device of this scheme. Utility Model Content

[0004] The purpose of the present application is to provide a pin shaft disassembly device, which can easily separate from the pin shaft after removing one pin shaft, so as to be able to repeatedly disassemble other pin shafts.

[0005] In order to achieve the above-mentioned purpose, the present application provides, on the one hand, a pin shaft disassembly device, including: a first jack; a fixing frame, which is connected to the first jack and is configured to be able to abut or connect to a mounting component connected to the pin shaft; and a clamping assembly, which is drivingly connected to the first jack and is configured to be able to be clamped and fixed to the pin shaft, so that the first jack can drive the clamping assembly to move relative to the fixing frame to remove the pin shaft from the mounting component.

[0006] In some embodiments, the clamping assembly includes a first clamp and a second clamp that are detachably connected to each other, and the first clamp and the second clamp can be located on the outer periphery of the pin and are clamped and fixed to the pin; and / or, the first jack is configured to apply a pulling force to the pin from above the pin to move it upward relative to the mounting component, and the pin disassembly device also includes a second jack, and the second jack is configured to apply a thrust to the pin from below the pin to move it upward relative to the mounting component.

[0007] In some embodiments, a connecting groove is provided on the first clamp, a connecting block protrudes from the second clamp, and the connecting block is inserted into the connecting groove; and / or, the clamping assembly also includes a connecting rod, a first connecting hole is provided on the first clamp, a second connecting hole is provided on the second clamp, the first connecting hole is coaxial with the second connecting hole, the first connecting hole and the second connecting hole are both matched with the connecting rod, and the first clamp and the second clamp are connected through the connecting rod.

[0008] In some embodiments, the clamping assembly also includes a clamping block, which is connected to the first clamp or the second clamp, and is located between the first clamp and the second clamp, and is fixed relative to the pin shaft by the first clamp and the second clamp, and a portion of the clamping block can be clamped into the groove of the pin shaft.

[0009] In some embodiments, the clamping block includes a first protrusion and a second protrusion connected to each other, both of which protrude from each other along sides away from each other, the first protrusion is clamped with the second clamp, and the second protrusion can be clamped into the groove of the pin shaft.

[0010] In some embodiments, the second clamp is provided with a slot for the first protrusion to be inserted into.

[0011] In some embodiments, the pin disassembly device further includes a transmission assembly, and the first jack is drivingly connected to the clamping assembly via the transmission assembly.

[0012] In some embodiments, the transmission assembly includes a first connecting plate and a transmission rod, the first connecting plate is drivingly connected to the first jack, the first connecting plate is provided with a first through hole for the transmission rod to pass through, the first jack is provided with a second through hole for the transmission rod to pass through, the transmission rod passes through the first through hole and the second through hole, the transmission rod is fixed relative to the first connecting plate, and is connected to the clamping assembly.

[0013] In some embodiments, the transmission assembly further includes a transmission block, which is connected to the transmission rod and is located above the first connecting plate, and the transmission block is used to transmit the thrust of the first connecting plate to the transmission rod for movement of the transmission rod.

[0014] In some embodiments, the fixing frame includes a sleeve and a second connecting plate, the bottom of the sleeve can abut against the mounting component, the sleeve cover is arranged on the outer periphery of the clamping assembly, the second connecting plate is fixed on the top of the sleeve, and a third through hole for the transmission rod to pass through is opened on the second connecting plate, the transmission rod is passed through the third through hole, and is movably arranged relative to the second connecting plate.

[0015] Through the above technical solution, during the disassembly process of the pin shaft, the first jack starts to work, and through the limiting effect of the fixed frame abutting or connecting to the installation component, the clamping assembly is driven to move, and the clamping assembly drives the pin shaft to move relative to the installation component until the pin shaft is detached from the installation component. The clamping assembly is connected to the pin shaft in the form of clamping. When the pin shaft disassembly device removes a pin shaft from the installation component, the clamping assembly can release its clamping relationship with the pin shaft, that is, the clamping assembly can be separated from the pin shaft, so that the clamping assembly can be clamped and fixed with the next pin shaft to be disassembled. The clamping assembly and the pin shaft are easy to disassemble and assemble, which facilitates the repeated use of the pin shaft disassembly device.

[0016] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the pin removal device of the present application in cooperation with the pin and the installation assembly;

[0019] Figure 2 for Figure 1 A longitudinal section of

[0020] Figure 3 for Figure 2 Schematic diagram of the structure from another angle;

[0021] Figure 4 It is a schematic diagram of the structure of the clamping assembly of the pin shaft disassembly device and the cooperation between the transmission rod and the pin shaft;

[0022] Figure 5 It is a structural schematic diagram of the clamping assembly of the pin shaft disassembly device;

[0023] Figure 6 for Figure 5 Schematic diagram of the structure from another angle;

[0024] Figure 7 It is a structural schematic diagram of a first clamp of the clamping assembly;

[0025] Figure 8 It is a structural schematic diagram of the second clamp and the clamping block of the clamping assembly;

[0026] Fig. 9 It is a structural schematic diagram of the second clamp of the clamping assembly;

[0027] Fig.10 It is a schematic diagram of the structure of the cooperation between the clamping block and the pin shaft of the clamping assembly;

[0028] Fig.11 A schematic diagram of the structure of a card block of a card connection assembly; and

[0029] Fig.12 for Fig.11 Schematic diagram of the structure from another angle.

[0030] Description of Reference Numerals

[0031] 10. First jack; 11. Inner cylinder; 12. Outer cylinder; 13. First hydraulic pump; 20. Fixing frame; 21. Sleeve; 22. Second connecting plate; 30. Clamping assembly; 31. First clamping hoop; 311. Connecting groove; 312. First connecting hole; 32. Second clamping hoop; 321. Connecting block; 322. Second connecting hole; 323. Clamping groove; 33. Connecting rod; 34. Clamping block; 341. First protrusion; 342. Second protrusion; 40. Second jack; 41. Main body; 42. Second hydraulic pump; 50. Transmission assembly; 51. First connecting plate; 52. Transmission rod; 53. Transmission block; 91. Pin; 92. Mounting parts. DETAILED DESCRIPTION

[0032] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0033] See also Figures 1 to 12 As shown, the utility model provides a pin shaft disassembly device, including: a first jack 10; a fixing frame 20, the fixing frame 20 is connected to the first jack 10, and is configured to be able to abut or be connected to a mounting component 92 connected to a pin shaft 91; and a clamping assembly 30, the clamping assembly 30 is drivingly connected to the first jack 10, and is configured to be able to be clamped and fixed with the pin shaft 91, so that the first jack 10 can drive the clamping assembly 30 to move relative to the fixing frame 20 to detach the pin shaft 91 from the mounting component 92.

[0034] In this embodiment, the clamping assembly 30 is first clamped and fixed with the pin 91, and the first jack 10 starts to work. The fixing frame 20 applies pressure to the installation component 92 under the action of the first jack 10, so that the first jack 10 can drive the clamping assembly 30 to move, and then the clamping assembly 30 can drive the pin 91 to move relative to the installation component 92, so that the pin 91 is detached from the installation component 92. On the one hand, when the entire pin removal device removes a pin 91 from the installation component 92, the clamping relationship between the clamping assembly 30 and the pin 91 is released. When other pins 91 need to be removed, the clamping assembly 30 can be clamped and matched with other pins 91 again. The clamping and matching of the clamping assembly 30 and the pin 91 makes the two easy to disassemble and assemble, and then the entire pin removal device can repeatedly disassemble multiple pins 91, that is, the entire pin removal device can be repeatedly used, which is highly practical. On the other hand, the entire pin shaft disassembly device can remove the rusted or worn and deformed pin shaft 91 from the installation component 92 through the force generated by the first jack 10, which saves effort in operation, reduces the labor intensity of personnel, and improves the efficiency of disassembly of the pin shaft 91.

[0035] In addition, through the clamping setting between the clamping assembly 30 and the pin shaft 91, on the one hand, there is no need to make any improvements to the pin shaft 91, such as opening a threaded hole on the pin shaft 91 to improve the efficiency of disassembling the pin shaft 91; on the other hand, it can protect the pin shaft 91 and achieve non-destructive disassembly of the pin shaft 91, so that the pin shaft 91 can be used again after rust removal or repair.

[0036] Specifically, the mounting component 92 may be a rear leg of a concrete pump truck.

[0037] See also Figures 1 to 12 As shown, in some embodiments of the utility model, the first jack 10 is configured to apply a pulling force to the pin 91 above the pin 91 to move it upward relative to the mounting component 92, and the pin disassembly device also includes a second jack 40, and the second jack 40 is configured to apply a thrust to the pin 91 below the pin 91 to move it upward relative to the mounting component 92.

[0038] In this embodiment, when the pin 91 is severely corroded or worn out, so that the pulling force applied by the first jack 10 cannot or is difficult to pull the pin 91 out of the mounting component 92, the second jack 40 is used to apply a thrust to the pin 91 from below the pin 91. The pin 91 is simultaneously subjected to the pulling force of the first jack 10 and the thrust of the second jack 40, which facilitates the pin 91 to move upward relative to the mounting component 92 until it is detached from the mounting component 92.

[0039] Specifically, the first jack 10 is arranged above the fixed frame 20 and the clamping assembly 30. The first jack 10 is a hollow jack, including an inner cylinder 11, an outer cylinder 12 and a first hydraulic pump 13. The inner cylinder 11 is arranged in the outer cylinder 12 and can move relative to the outer cylinder 12. The first hydraulic pump 13 is connected to the outer cylinder 12, the inner cylinder 11 cooperates with the clamping assembly 30, and the outer cylinder 12 is fixedly connected to the fixed frame 20. When the pin 91 needs to be detached from the mounting component 92, the first hydraulic pump 13 is operated to pump the liquid between the outer cylinder 12 and the inner cylinder 11, and the inner cylinder 11 moves upward relative to the outer cylinder 12, driving the clamping assembly 30 to move upward, and then driving the pin 91 to pull out the mounting component 92 upward; after the pin 91 is detached from the mounting component 92, the first hydraulic pump 13 is operated to recover the liquid between the outer cylinder 12 and the inner cylinder 11, and the inner cylinder 11 moves downward relative to the outer cylinder 12, so that the clamping assembly 30 moves downward to reset, and the next pin 91 is to be removed. The first hydraulic pump 13 is a manual hydraulic pump. The first jack 10 can load more than one hundred tons of force.

[0040] Specifically, the second jack 40 is arranged below the pin 91. The second jack 40 is an ultra-thin jack, including a body 41 and a second hydraulic pump 42. The second hydraulic pump 42 is connected to the body 41. When the first jack 10 cannot or has difficulty in pulling the pin 91 out of the mounting component 92, the second hydraulic pump 42 is operated to pump liquid into the body 41. The second jack 40 pushes the pin 91 to move upward to assist the first jack 10 in detaching the pin 91 from the mounting component 92. When the pin 91 is detached from the mounting component 92, the second hydraulic pump 42 is operated to recover the liquid in the body 41 until the body 41 is reset for the next use. The second hydraulic pump 42 is a manual hydraulic pump. The second jack 40 can load a force of more than one hundred tons.

[0041] See also Figures 1 to 12 As shown, in some embodiments of the present invention, the clamping assembly 30 includes a first clamp 31 and a second clamp 32 detachably connected to each other. The first clamp 31 and the second clamp 32 can be located on the periphery of the pin 91 and clamped and fixed to the pin 91.

[0042] In this embodiment, when the clamping assembly 30 is clamped with the pin shaft 91, the first clamp 31 and the second clamp 32 are firstly surrounded on the outer circumference of the pin shaft 91, and then the first clamp 31 and the second clamp 32 are connected so that the two clamps tightly hold the pin shaft 91 to achieve the clamping fit with the pin shaft 91.

[0043] Specifically, the side walls of the first clamp 31 and the side walls of the second clamp 32 are both arc-shaped walls, and the opposite sides of the two are adapted to the outer periphery of the pin 91, so that the sides of the first clamp 31 and the second clamp 32 facing each other can fit with the pin 91, increasing the contact area between the two and the pin 91, thereby increasing the friction between the two and the pin 91, so that the first clamp 31 and the second clamp 32 can stably drive the pin 91 to move.

[0044] See also Figures 1 to 12 As shown, in some embodiments of the present invention, a connecting groove 311 is formed on the first clamp 31 , a connecting block 321 protrudes from the second clamp 32 , and the connecting block 321 is inserted into the connecting groove 311 .

[0045] In this embodiment, the first clamp 31 and the second clamp 32 are split structures, which are convenient for clamping the pin 91 by buckling. The connection groove 311 and the connection block 321 are provided to position the first clamp 31 and the second clamp 32, so that the two can be quickly buckled, and then the two can be quickly engaged with the pin 91, thereby improving the efficiency of disassembling the pin 91.

[0046] Specifically, two connecting grooves 311 are horizontally formed on the first clamp 31 , and two connecting blocks 321 are horizontally protruded on the second clamp 32 . The connecting blocks 321 are arranged in a one-to-one correspondence with the connecting grooves 311 .

[0047] See also Figures 1 to 12 As shown, in some embodiments of the utility model, the clamping assembly 30 also includes a connecting rod 33, a first connecting hole 312 is opened on the first clamp 31, and a second connecting hole 322 is opened on the second clamp 32. The first connecting hole 312 is coaxial with the second connecting hole 322, and the first connecting hole 312 and the second connecting hole 322 are both matched with the connecting rod 33, and the first clamp 31 and the second clamp 32 are connected through the connecting rod 33.

[0048] In this embodiment, after the first clamp 31 and the second clamp 32 are positioned and aligned through the connecting groove 311 and the connecting block 321 , the connecting rod 33 is inserted into the second connecting hole 322 and the first connecting hole 312 to fix the second clamp 32 to the first clamp 31 .

[0049] Specifically, the first connecting holes 312 are provided on two surfaces of the first clamp 31 for fitting with the second clamp 32, two first connecting holes 312 are provided on each surface, and the first connecting holes 312 are countersunk holes; the second connecting holes 322 are provided on two surfaces of the second clamp 32 for fitting with the first clamp 31, two second connecting holes 322 are provided on each surface, and the second connecting holes 322 are through holes, so that the connecting rod 33 can be inserted into the second connecting hole 322 from the side of the second clamp 32 away from the first clamp 31; there are four connecting rods 33, which correspond to the four first connecting holes 312 and the four second connecting holes 322 respectively. The first connecting hole 312 and the second connecting hole 322 are both threaded holes, and the connecting rod 33 is a screw or a bolt. The second clamp 32 is connected to the first clamp 31 by screwing the connecting rod 33 into the second connecting hole 322 and the first connecting hole 312. The deeper the connecting rod 33 is screwed into the second connecting hole 322 and the first connecting hole 312, the tighter the second clamp 32 and the first clamp 31 fit, so that the two are more tightly connected to the pin 91.

[0050] See also Figures 1 to 12 As shown, in some embodiments of the utility model, the clamping assembly 30 also includes a clamping block 34, which is connected to the first clamp 31 or the second clamp 32. The clamping block 34 is located between the first clamp 31 and the second clamp 32, and is fixed relative to the pin shaft 91 by the first clamp 31 and the second clamp 32. A portion of the clamping block 34 can be clamped into the groove of the pin shaft 91.

[0051] In this embodiment, a groove is provided on the pin shaft 91, and the clamping block 34 is used to cooperate with the groove and increase the stability of the cooperation between the clamping assembly 30 and the pin shaft 91. The clamping block 34 can be simultaneously inserted into the groove of the pin shaft 91 and the first clamp 31 or the second clamp 32. When the clamping assembly 30 moves upward, the clamping block 34 can cooperate with the friction between the first clamp 31 and the second clamp 32 and the pin shaft 91 to drive the pin shaft 91 to move upward, thereby avoiding insufficient friction between the first clamp 31 and the second clamp 32 and the pin shaft 91, thereby avoiding the first clamp 31 and the second clamp 32 and the pin shaft 91 slipping, ensuring that the pulling force of the first jack 10 can be fully or mostly transmitted to the pin shaft 91 through the clamping assembly 30, thereby ensuring that the clamping assembly 30 can drive the pin shaft 91 to move upward to the greatest extent.

[0052] See also Figures 1 to 12 As shown, in some embodiments of the utility model, the clamping block 34 includes a first protrusion 341 and a second protrusion 342 connected to each other, and the first protrusion 341 and the second protrusion 342 both protrude from each other along sides facing away from each other, the first protrusion 341 is clamped with the second clamp 32, and the second protrusion 342 can be clamped into the groove of the pin shaft 91.

[0053] In this embodiment, after the second protrusion 342 is inserted into the groove of the pin shaft 91 in the horizontal direction, it is confined in the groove of the pin shaft 91 in the horizontal direction through the cooperation of the first clamp 31 and the second clamp 32. At the same time, the second protrusion 342 is confined in the groove of the pin shaft 91 in the vertical direction through the groove wall of the groove of the pin shaft 91, so that the second protrusion 342 can be firmly engaged with the pin shaft 91.

[0054] Specifically, the shape of the second protrusion 342 is adapted to the groove of the pin shaft 91, so that the second protrusion 342 can occupy the entire groove of the pin shaft 91 and can fit with the groove wall of the groove of the pin shaft 91, thereby increasing the contact area between the two, thereby increasing the stability of the cooperation between the two, and ensuring that the second protrusion 342 can smoothly transmit all or most of the pulling force of the first jack 10 to the pin shaft 91.

[0055] See also Figures 1 to 12 As shown, in some embodiments of the present invention, the second clamp 32 is provided with a clamping groove 323 for the first protrusion 341 to be clamped into.

[0056] In this embodiment, after the first protrusion 341 is horizontally inserted into the groove 323 of the second clamp 32, the first clamp 31 and the second clamp 32 cooperate to confine the first protrusion 341 in the groove 323 of the second clamp 32 in the horizontal direction. At the same time, the first protrusion 341 is vertically confined in the groove 323 of the second clamp 32 through the groove wall of the groove 323 of the second clamp 32, so that the first protrusion 341 can be firmly matched with the second clamp 32.

[0057] Specifically, the slot 323 is an arc-shaped slot, and the side of the first protrusion 341 facing the slot 323 is an arc surface, so that the first protrusion 341 can occupy the entire slot 323 of the second clamp 32 and can fit with the slot wall of the slot 323 to increase the contact area between the two, thereby increasing the stability of the cooperation between the two, and ensuring that the first protrusion 341 can smoothly transfer all or most of the pulling force of the first jack 10 to the second protrusion 342.

[0058] See also Figures 1 to 12 As shown, in some embodiments of the present invention, the pin disassembly device further includes a transmission assembly 50 , and the first jack 10 is drivingly connected to the clamping assembly 30 via the transmission assembly 50 .

[0059] In this embodiment, the clamping assembly 30 is located below the first jack 10, with a fixing frame 20 therebetween. Therefore, a transmission assembly 50 is designed, which is drive-connected to the first jack 10 and connected to the clamping assembly 30 to transmit the force of the first jack 10 to the clamping assembly 30.

[0060] See also Figures 1 to 12As shown, in some embodiments of the utility model, the transmission assembly 50 includes a first connecting plate 51 and a transmission rod 52. The first connecting plate 51 is drivingly connected to the first jack 10. The first connecting plate 51 is provided with a first through hole for the transmission rod 52 to pass through. The first jack 10 is provided with a second through hole for the transmission rod 52 to pass through. The transmission rod 52 passes through the first through hole and the second through hole. The transmission rod 52 is fixed relative to the first connecting plate 51 and is connected to the clamping assembly 30.

[0061] In this embodiment, the first jack 10 transmits the force to the first connecting plate 51, the transmission rod 52 and the clamping assembly 30 in sequence, so that the clamping assembly 30 can drive the pin shaft 91 to move through the force.

[0062] Specifically, the first jack 10 is hollow inside to form a second through hole, and the transmission rod 52 is disposed inside the first jack 10. The first connecting plate 51 is fixedly connected to the inner cylinder 11 of the first jack 10, and the inner cylinder 11 of the first jack 10 moves upward, driving the first connecting plate 51 to move upward, and further driving the transmission rod 52 to move upward.

[0063] See also Figures 1 to 12 As shown, in some embodiments of the utility model, the transmission assembly 50 also includes a transmission block 53, which is connected to the transmission rod 52 and is located above the first connecting plate 51. The transmission block 53 is used to transmit the thrust of the first connecting plate 51 to the transmission rod 52 for the transmission rod 52 to move.

[0064] In this embodiment, the first connecting plate 51 first transmits the force to the transmission block 53, and the transmission block 53 then transmits the force to the transmission rod 52. When the first connecting plate 51 is driven to move upward by the first jack 10, the first connecting plate 51 pushes the transmission block 53 to move upward, and the transmission block 53 then drives the transmission rod 52 to move upward.

[0065] Specifically, a thread is formed on the upper section of the transmission rod 52, and the transmission block 53 is a nut. The transmission block 53 is threadedly connected to the transmission rod 52. The thread between the transmission block 53 and the transmission rod 52 can limit the relative position of the two in the vertical direction, avoiding relative movement of the two in the vertical direction during the force process, ensuring the stability of force transmission, and avoiding force loss.

[0066] See also Figures 1 to 12As shown, in some embodiments of the utility model, the fixing frame 20 includes a sleeve 21 and a second connecting plate 22, the bottom of the sleeve 21 can abut against the mounting component 92, the sleeve 21 is covered on the outer periphery of the clamping assembly 30, the second connecting plate 22 is fixed to the top of the sleeve 21, and a third through hole for the transmission rod 52 to pass through is opened on the second connecting plate 22, the transmission rod 52 is passed through the third through hole, and is movably arranged relative to the second connecting plate 22.

[0067] In this embodiment, during the operation of the first jack 10, the sleeve 21 is used to press against the mounting component 92, so that the first jack 10 can apply force to drive the transmission assembly 50 and the clamping assembly 30 to move upward. The interior of the sleeve 21 provides space for the clamping assembly 30 to move upward, and provides space for the pin 91 to move upward.

[0068] Specifically, the upper surface of the second connecting plate 22 is fixedly connected to the bottom surface of the outer cylinder 12 of the first jack 10. The length of the internal space of the sleeve 21 in the vertical direction can be the same as the length of the pin 91 in the vertical direction, so as to provide sufficient moving space for the pin 91, so that the pin 91 can be completely pulled out of the sleeve 21 by the first jack 10. The length of the internal space of the sleeve 21 in the vertical direction can also be less than the length of the pin 91 in the vertical direction, so that after the pin 91 is partially pulled out by the first jack 10 and the pin 91 and the mounting component 92 are loosened, the entire pin removal device is detached from the pin 91, and other tools are used to completely pull the pin 91 out of the mounting component 92.

[0069] Specifically, the transmission rod 52 passes through the transmission block 53, the first through hole of the first connecting plate 51, the second through hole of the first jack 10 and the third through hole of the second connecting plate 22 in sequence from top to bottom, and is connected to the clamping assembly 30. A fourth through hole for the transmission rod 52 to pass through is provided at the top of the first clamp 31. The fourth through hole is located at the center of the entire clamping assembly 30. The lower end of the transmission rod 52 is inserted into the fourth through hole and fixedly matched with the first clamp 31. The wall surface of the lower end of the transmission rod 52 fits with the inner wall of the fourth through hole of the first clamp 31, thereby increasing the contact area between the two, thereby increasing the stability of the connection between the two. During use, the clamping assembly 30 is first matched with the pin 91, and then the fixing frame 20 is covered on the outer periphery of the clamping assembly 30, and the transmission rod 52 is connected to the second clamp 32; conversely, after the pin 91 is detached from the mounting component 92, the transmission rod 52 is first detached from the second clamp 32, and then the fixing frame 20 is separated from the clamping assembly 30, and then the clamping assembly 30 is separated from the pin 91. The transmission rod 52 protrudes above the transmission block 53, which is convenient for operating the transmission rod 52; the transmission rod 52 and the second clamp 32 are detachably connected, such as threaded connection, which is convenient for disassembly and assembly of the transmission rod 52 and the clamping assembly 30.

[0070] It should be noted that in this application, unless otherwise stated, directional words such as "upper" and "lower" generally refer to Figures 1 to 3 Up and down in the orientation shown.

[0071] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0074] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A pin disassembly device, characterized in that: include: First jack (10); a fixing frame (20), the fixing frame (20) being connected to the first jack (10) and being configured to abut against or be connected to a mounting component (92) connected to a pin shaft (91); and A clamping assembly (30) is drivingly connected to the first jack (10) and is configured to be clamped and fixed with the pin shaft (91) so that the first jack (10) can drive the clamping assembly (30) to move relative to the fixing frame (20) to detach the pin shaft (91) from the mounting component (92).

2. The pin disassembly device according to claim 1, characterized in that: The clamping assembly (30) comprises a first clamp (31) and a second clamp (32) which are detachably connected to each other, and the first clamp (31) and the second clamp (32) can be located on the outer periphery of the pin shaft (91) and are clamped and fixed to the pin shaft (91); and / or, The first jack (10) is configured to apply a pulling force to the pin (91) above the pin (91) so as to cause the pin to move upward relative to the mounting component (92), and the pin disassembly device also includes a second jack (40), which is configured to apply a thrust force to the pin (91) below the pin (91) so as to cause the pin to move upward relative to the mounting component (92).

3. The pin disassembly device according to claim 2, characterized in that: The first clamp (31) is provided with a connection groove (311), the second clamp (32) is provided with a connection block (321), and the connection block (321) is inserted into the connection groove (311); and / or, The clamping assembly (30) further comprises a connecting rod (33); a first connecting hole (312) is formed on the first clamp (31); a second connecting hole (322) is formed on the second clamp (32); the first connecting hole (312) and the second connecting hole (322) are coaxial; the first connecting hole (312) and the second connecting hole (322) both cooperate with the connecting rod (33); and the first clamp (31) and the second clamp (32) are connected via the connecting rod (33).

4. The pin disassembly device according to claim 2, characterized in that: The clamping assembly (30) further comprises a clamping block (34), wherein the clamping block (34) is connected to the first clamping hoop (31) or the second clamping hoop (32), the clamping block (34) is located between the first clamping hoop (31) and the second clamping hoop (32), and is fixed relative to the pin shaft (91) by the first clamping hoop (31) and the second clamping hoop (32), and a portion of the clamping block (34) can be clamped into a groove of the pin shaft (91).

5. The pin removal device according to claim 4, characterized in that: The clamping block (34) comprises a first protrusion (341) and a second protrusion (342) which are connected to each other. The first protrusion (341) and the second protrusion (342) both protrude from each other along sides facing away from each other. The first protrusion (341) is clamped with the second clamp (32), and the second protrusion (342) can be clamped into the groove of the pin shaft (91).

6. The pin removal device according to claim 5, characterized in that: The second clamp (32) is provided with a clamping groove (323) for the first protrusion (341) to be clamped into.

7. The pin removal device according to any one of claims 1 to 6, characterized in that: The pin shaft disassembly device also includes a transmission assembly (50), and the first jack (10) is drivingly connected to the clamping assembly (30) via the transmission assembly (50).

8. The pin removal device according to claim 7, characterized in that: The transmission assembly (50) comprises a first connecting plate (51) and a transmission rod (52); the first connecting plate (51) is drivingly connected to the first jack (10); a first through hole for the transmission rod (52) to pass through is formed on the first connecting plate (51); a second through hole for the transmission rod (52) to pass through is formed on the first jack (10); the transmission rod (52) passes through the first through hole and the second through hole; the transmission rod (52) is fixed relative to the first connecting plate (51) and is connected to the clamping assembly (30).

9. The pin removal device according to claim 8, characterized in that: The transmission assembly (50) further comprises a transmission block (53), the transmission block (53) being connected to the transmission rod (52) and being located above the first connecting plate (51), the transmission block (53) being used for transmitting the thrust of the first connecting plate (51) to the transmission rod (52) so as to enable the transmission rod (52) to move.

10. The pin removal device according to claim 9, characterized in that: The fixing frame (20) comprises a sleeve (21) and a second connecting plate (22), the bottom of the sleeve (21) being capable of abutting against the mounting component (92), the sleeve (21) being arranged on the outer periphery of the clamping assembly (30), the second connecting plate (22) being fixed on the top of the sleeve (21), the second connecting plate (22) being provided with a third through hole for the transmission rod (52) to pass through, the transmission rod (52) being passed through the third through hole and being movably arranged relative to the second connecting plate (22).

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