A shock absorber spring removal and installation device suitable for various specifications

Abstract

This utility model discloses a shock absorber spring disassembly and assembly device applicable to various specifications, belonging to the technical field of shock absorber spring disassembly and assembly tools. The device includes a base frame, a first driving component, a guide rod assembly, a first slider plate, a first lower support plate, and an upper clamping assembly. The first lower support plate has a notch, and a first shoulder and a second shoulder are formed on both sides of the notch. The horizontal height of the first lower support plate spirals down from the first shoulder to the second shoulder. The area of ​​the notch is A, and the surface area of ​​the first lower support plate is B, where A ≤ 0.6B. This utility model can adapt to shock absorber springs of different outer diameters; it does not require ensuring that the shock absorber spring and shock absorber cylinder are in a completely vertical state, making disassembly and assembly convenient; the second hook is adaptable to shock absorber springs with different outer diameters, different spiral directions, and different spiral angles; in workplaces where power or air supply is unavailable, the downward-moving hook is used to complete the disassembly and assembly of the shock absorber spring.

Description

Technical Field

[0001] This utility model belongs to the technical field of shock absorber spring disassembly and assembly tools, specifically relating to a shock absorber spring disassembly and assembly device suitable for various specifications. Background Technology

[0002] Automotive shock absorbers are devices used to mitigate impacts and reduce vibrations in automobiles. They mainly consist of a shock absorber cylinder and a shock absorber spring. The shock absorber spring is sleeved on the outside of the shock absorber cylinder. The shock absorber cylinder generally uses a hydraulic shock absorber. Its working principle is that when the frame (or body) and the axle are subjected to vibration and relative movement occurs, the piston inside the shock absorber moves up and down. The oil in the shock absorber chamber repeatedly flows from one chamber to another through different orifices. The fluid converts the elastic energy of the spring into heat energy, making the vehicle's movement converge to the most reasonable level, thereby eliminating vibrations from the road surface, improving driving stability, and giving the driver a sense of comfort and stability. Shock absorber housings are wear-prone parts in automotive applications, and the internal hydraulic oil gradually leaks over time. Shock absorber springs, as supporting components, typically have a lifetime of use. Currently, replacing shock absorbers requires removing the springs from the housing. Existing shock absorber spring removal and installation tools generally use a jaw disc to compress the spring from the top or bottom. For example, Chinese utility model patent CN222290052U discloses a tool for removing and installing automotive shock absorber springs that uses a clamping assembly to hold the shock absorber housing, then uses the jaws of a compression assembly to press the spring down, and finally uses a lead screw in a drive assembly... The slider and compression assembly move downwards, and the jaws of the compression assembly press down on the spring. After compressing the spring, the nut at the top rubber of the shock absorber is removed. Then, the screw is rotated in the opposite direction to move the slider and compression assembly upwards. After the jaws release the spring, the clamping assembly that fixes the shock absorber cylinder is released. The new shock absorber cylinder is clamped using the clamping assembly, and the original shock absorber spring is then fitted onto the new shock absorber cylinder. The jaws of the compression assembly then press down on the shock absorber spring again, compressing it to the predetermined stroke. After that, the nut at the top rubber is connected to the upper end of the shock absorber cylinder, and the jaws of the compression assembly rise again to release the shock absorber spring, completing the replacement of the shock absorber cylinder. This type of shock absorber spring disassembly and assembly tool is inconvenient. Multiple sets of jaw discs are required for shock absorber springs of different outer diameters. When replacing the shock absorber cylinder, the spring needs to be compressed twice, which is quite cumbersome. In addition, the spring is prone to popping out during the compression and release process, which affects the safety of the operators. When replacing the new shock absorber cylinder, the clamping component needs to be used to ensure that the new shock absorber cylinder is placed vertically, and then the jaws of the compression component are used to compress the shock absorber spring onto the new shock absorber cylinder, which is very inconvenient. Utility Model Content

[0003] In view of the above-mentioned problems in the prior art, the technical problem to be solved by this utility model is to provide a shock absorber spring disassembly and assembly device applicable to various specifications to improve the efficiency of shock absorber spring disassembly and assembly.

[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A shock absorber spring disassembly and assembly device applicable to various specifications includes a base frame, a first driving member connected to the base frame, a guide rod assembly disposed on the base frame, a first slider plate connected to the first driving member and sliding on the guide rod assembly, a first lower support plate connected to the first slider plate, and an upper clamping assembly for pressing the shock absorber spring against the upper part of the shock absorber spring. The first lower support plate has a notch corresponding to the shock absorber cylinder. The first lower support plate forms a first shoulder and a second shoulder on both sides of the notch. The horizontal height of the first lower support plate spirals down from the first shoulder to the second shoulder. The area of ​​the notch is A, and the surface area of ​​the first lower support plate is B, where A≤0.6B.

[0006] Preferably, the first slider plate has a first inner hole on one side, and the first lower support plate is connected to a first hole rod corresponding to the first inner hole. The first lower support plate is rotatably connected to the first slider plate through the first hole rod.

[0007] Preferably, the first lower support plate is movably connected to a first hook for hooking onto the shock absorber spring.

[0008] Preferably, the guide rod assembly includes two or more guide rods, and the upper clamping assembly includes a second driving member and a first working member connected to the second driving member. The first working member includes a sliding sleeve sleeved on the guide rod, a first cantilever connected to the sliding sleeve, and a second hook connected to the first cantilever. The second hook is used to hook onto the shock absorber spring.

[0009] Preferably, the top end of the guide rod assembly is connected to an upper top plate, and the second driving component includes a second slider plate that slides on the guide rod assembly, a second lead screw that is movably connected to the second slider plate, and a first handwheel that is connected to the second lead screw. The second lead screw passes through the upper top plate and is threadedly connected to the upper top plate. The outer wall of the sliding sleeve is provided with a first external thread and a second external thread. The first cantilever is movably connected to the sliding sleeve through the second external thread, and the sliding sleeve is movably connected to the second slider plate.

[0010] Preferably, the second hook includes a hook portion and an extension post connected to the hook portion. The first cantilever is provided with a first through groove, and a first displacement block is provided in the first through groove. The first displacement block is provided with a first through hole corresponding to the extension post. A first locking screw for restricting the movement of the extension post is threaded onto the first displacement block. The first cantilever is provided with a second through groove communicating with the first through groove. The first locking screw passes through the second through groove, and a first locking nut is connected to the first locking screw.

[0011] Preferably, the upper clamping assembly further includes a second working component, which includes a second cantilever and a third suspension block movably connected to the second driving component. Both the second cantilever and the third suspension block are provided with a third hook claw, and the second cantilever is sleeved on the guide rod.

[0012] Preferably, the second working piece includes two second cantilever arms, a second sliding member is sleeved on the guide rod, the second sliding member is movably connected to the second driving member through a seventh screw, when the seventh screw rotates, it drives the second sliding member to move up and down along the guide rod, and when the second sliding member moves up and down, it drives the second cantilever arms to move up and down, and the third suspension block is movably connected to the second slider plate through an eighth screw, when the eighth screw rotates, it drives the third suspension block to move up and down.

[0013] Preferably, the first driving component is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. The first driving component includes a piston rod, the bottom frame includes a top plate, the piston rod passes through the top plate, and the first slider plate is connected to the top of the piston rod.

[0014] Preferably, a second lower support plate is detachably connected to the first slider plate, the second lower support plate being mirror-symmetrical to the first lower support plate, and a first clamping assembly for clamping the shock absorber cylinder is also connected to the first slider plate, and a support plate for supporting the shock absorber cylinder from below is connected to the bottom frame.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0016] 1. This application sets up a first driving member, a first lower support plate and an upper clamping assembly. The first driving member drives the first lower support plate to compress the shock absorber spring upward. The length of the first shoulder and the second shoulder of the first lower support plate is greater than the notch radius. Compared with the existing fixed-size chuck, the first lower support plate can adapt to shock absorber springs with different outer diameters.

[0017] 2. A rotatable first lower support plate is provided. After the first lower support plate is inserted into the shock absorber spring, the second locking screw that restricts the rotation of the first lower support plate is loosened. When the shock absorber spring is not kept vertical but is offset at a certain angle, the first lower support plate can offset at a certain angle with the shock absorber spring, ensuring that the upper surface of the first lower support plate can better fit close to the shock absorber spring. When the shock absorber spring is offset, the spring can continue to be compressed and the shock absorber spring can be disassembled. It is not necessary to ensure that the shock absorber spring and the shock absorber cylinder are in a completely vertical state, making disassembly and assembly convenient.

[0018] 3. A first hook pawl that hooks onto the shock absorber spring is movably connected to the first lower support plate. A first positioning block is set at the radial position of the notch on the first lower support plate. Corresponding serrations are set on the first positioning block and the first hook pawl. The position of the first hook pawl can be adjusted back and forth relative to the notch and the displacement is limited by the meshing serrations. The first hook pawl can limit the horizontal sliding of the spring when it is compressed, thus improving safety. There is no need to set a groove on the first lower support plate. The first lower support plate can be used for shock absorber springs with different outer diameters.

[0019] 4. The upper clamping assembly includes a second driving component and a first working component. The second slider plate of the second driving component drives the sliding sleeve, first cantilever and second hook of the first working component to move up and down as a whole. The second hook located on the same side is used to hook the shock absorber spring. The height of the two second hooks can be adjusted as a whole by the first handwheel. The sliding sleeve is threaded to the second slider plate and the first cantilever respectively. The sliding sleeve is sleeved on the guide rod, with low sliding resistance and small space occupation. The height of each first cantilever and the corresponding second hook can be adjusted individually by rotating the sliding sleeve by the first handwheel. The threads at both ends of the sliding sleeve are opposite, and the height of the first cantilever is adjusted quickly when the sliding sleeve is rotated.

[0020] 5. During operation, the height of the two first cantilever arms can be adjusted independently. The first cantilever arms can rotate relative to the guide rod, thereby quickly adjusting the left and right positions of the first cantilever arms. The second hook pawl is slidably connected to the first cantilever arms through the first displacement block, thereby adjusting the front and back positions. The angle of the first displacement block within the first cantilever arms can be adjusted, thereby adjusting the angle of the second hook pawl. The second hook pawl can move back and forth relative to the first displacement block, thereby fine-tuning the left and right positions of the second hook pawl. The second hook pawl can rotate relative to the first displacement block, thereby adjusting the orientation of the second hook groove on the second hook pawl. The two second hook pawls can be adjusted independently for height, left and right positions, front and back positions, angle, and left and right positions, and the orientation of the second hook groove on the second hook pawl. The six degrees of freedom of adjustment allow the second hook pawls to adapt to damper springs with different spring outer diameters, different helical directions, and helical angles, and the adjustment speed is fast while ensuring that the two second hook pawls maintain a 180° angle for use.

[0021] 6. The guide rod assembly includes four guide rods. A second lower support plate with the opposite spiral direction to the first lower support plate is set on the other side of the first slider plate. It cooperates with the first cantilever on the other side guide rod to complete the assembly and disassembly of springs with different spiral directions.

[0022] 7. When replacing the shock absorber cylinder, the shock absorber cylinder does not need to be fixed when compressing the shock absorber spring using the first lower support plate and the second hook claw. When replacing the new shock absorber cylinder, it is not necessary to ensure that the shock absorber cylinder is in a vertical position to complete the connection between the new shock absorber cylinder and the shock absorber spring. Moreover, the shock absorber spring only needs to be compressed once during the entire process of replacing the new shock absorber cylinder, which improves safety and work efficiency.

[0023] 8. Set up a first clamping assembly and a support plate, and cooperate with a second hook that can be reversed. In workplaces where power or air supply cannot be provided, the shock absorber spring can be disassembled and assembled by manual operation using the downward-moving hook without adding any additional parts.

[0024] 9. The upper clamping assembly also includes a second working part. The third suspension block and two second cantilever arms of the second working part are movably connected to the second slider plate. The three third hooks press down on the damper spring, resulting in more even force distribution during use, making the device more stable and safer. The height of the three third hooks can be adjusted up and down simultaneously, and the height of each of the three third hooks can be adjusted individually. When the third hooks are not under force, they can be manually adjusted via the second handwheel block. When the third hooks are under force, the height of each hook can be adjusted individually via the sleeve rod to adjust the concentricity of the damper spring, the center of the damper cylinder, and the top rubber. When replacing the top rubber individually, the top of the damper spring can be leveled at any time, making assembly faster.

[0025] 10. The first clamping assembly and the support plate can also cooperate with the third hook of the second working piece to complete the installation and removal of the shock absorber spring by using the downward-moving third hook in workplaces where power or air supply is unavailable.

[0026] 11. A third slider plate is movably connected to the second slider plate. A safety block is movably connected to the third slider plate. The safety block is used to place the limit block. The limit block can fix the first batch head, replacing the personnel holding the first batch head, improving the convenience of shock absorber spring disassembly and assembly operations. The safety block can also prevent the shock absorber spring from jumping out, improving operational safety. Attached Figure Description

[0027] Figure 1 This is an overall structural diagram of the device according to Embodiment 1 of this utility model;

[0028] Figure 2 This is a top view of the first lower support plate in Embodiment 1;

[0029] Figure 3This is a schematic diagram showing the dimensions of the first lower support plate in Embodiment 1;

[0030] Figure 4 This is a three-dimensional structural diagram of the first lower support plate in Embodiment 1;

[0031] Figure 5 This is a schematic diagram of the cross-sectional structure of the first positioning block in Embodiment 1;

[0032] Figure 6 This is a schematic diagram of the cross-sectional structure of the first hook in Embodiment 1;

[0033] Figure 7 This is a side view of the first hook structure in Embodiment 1;

[0034] Figure 8 This is a schematic diagram of the bottom frame structure of Example 1;

[0035] Figure 9 This is a top view of the first slider plate structure in Embodiment 1;

[0036] Figure 10 This is a top view of the second slider plate structure in Embodiment 1;

[0037] Figure 11 This is a schematic diagram of the cross-sectional structure of the second slider plate in Embodiment 1;

[0038] Figure 12 This is a schematic diagram of the cross-sectional structure at the connection between the second lead screw and the second slider plate in Embodiment 1;

[0039] Figure 13 This is a schematic diagram of the connection between the second slider plate and the sliding sleeve in Embodiment 1;

[0040] Figure 14 This is a schematic diagram of the sliding sleeve structure in Example 1;

[0041] Figure 15 This is a three-dimensional structural diagram of the first cantilever and the second hook in Embodiment 1;

[0042] Figure 16 This is a schematic diagram of the first cantilever structure in Embodiment 1;

[0043] Figure 17 This is a schematic diagram of the first displacement block structure in Embodiment 1;

[0044] Figure 18 This is a schematic diagram of the structure of the first locking screw and the first locking nut in Embodiment 1;

[0045] Figure 19 This is a schematic diagram of the safety buckle structure in Embodiment 1;

[0046] Figure 20This is a schematic diagram of the working state of the second hook in Embodiment 1.

[0047] Figure 21 This is a schematic diagram of the second lower support plate structure in Embodiment 1;

[0048] Figure 22 This is a schematic diagram of the first and second clamping components and the support plate structure of Embodiment 1;

[0049] Figure 23 This is a schematic diagram of the first clamping component structure in Embodiment 1;

[0050] Figure 24 This is a schematic diagram of the second clamping assembly and support plate structure in Embodiment 1;

[0051] Figure 25 This is a schematic diagram of the overall structure of Example 2;

[0052] Figure 26 This is a schematic diagram of the structure at the second cantilever in Embodiment 2;

[0053] Figure 27 This is a schematic diagram of the third hook structure in Example 2;

[0054] Figure 28 This is a schematic diagram of the first hook structure in Embodiment 2;

[0055] Figure 29 This is a schematic diagram of the first positioning block structure in Embodiment 2;

[0056] Figure 30 This is a schematic diagram of the overall structure of Example 3;

[0057] Figure 31 This is a schematic diagram of the structure at the safety block in Example 3;

[0058] Figure 32 This is a schematic diagram of the ninth lead screw structure in Example 3;

[0059] Figure 33 This is a schematic diagram of the limiting block structure in Embodiment 3;

[0060] Figure 34 This is a schematic diagram of the first batch of head structures in Example 3;

[0061] Figure 35 This is a schematic diagram of the shock absorber cylinder structure;

[0062] Figure 36 This is a schematic diagram of the working state structure of Example 3;

[0063] Figure 37 This is a schematic diagram of the safety block and limit block structure in Example 4;

[0064] Figure 38 This is a schematic diagram of the safety block structure in Example 4;

[0065] Figure 39 This is a schematic diagram of the limiting block structure in Example 4;

[0066] Figure 40 This is a schematic diagram of the device structure in Example 5;

[0067] Figure 41 This is a schematic diagram of the first lower support plate structure in Embodiment 6. Detailed Implementation

[0068] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0069] Example 1

[0070] like Figure 1 and Figure 8 As shown, a shock absorber spring disassembly and assembly device suitable for various specifications includes a base frame 1, a first driving component 2, a guide rod assembly 3, a first slider plate 4, a first lower support plate 5, and an upper clamping assembly. The base frame 1 is mounted on a base 15, which is a rectangular base used to stabilize the entire device. Two casters 151 are provided on one side of the base 15. When the device and the base 15 are tilted as a whole, the two casters 151 contact the ground, making it easy to push the base 15 and the entire device to a designated position.

[0071] like Figure 1 and Figure 8As shown, the bottom frame 1 includes a top plate 11, a bottom plate 12, and four support rods 13. Both the top plate 11 and the bottom plate 12 are rectangular plates. The four support rods 13 are arranged between the top plate 11 and the bottom plate 12 and connect the two. The bottom plate 12 is connected to the base 15 by bolts. The lower ends of the four support rods 13 are respectively connected to the four corners of the bottom plate 12, and the upper ends of the four support rods 13 are connected to the top plate 11. The first driving component 2 is connected to the bottom frame 1. The first driving component 2 is a cylinder, hydraulic cylinder, or electric cylinder. In this embodiment, the first driving component 2 adopts an existing cylinder including a pneumatic control valve assembly. The first driving component 2 includes a piston rod 21, a cylinder barrel 22, and a valve assembly 23. The cylinder barrel 22 is located inside the bottom frame 1, and the lower end of the cylinder barrel 22 is connected to the bottom plate 12 of the frame. The piston rod 21 passes through the top plate 11 of the frame, and the top end of the piston rod 21 is located above the top plate 11 of the frame. The valve assembly 23 is connected to the cylinder barrel 22 to control the extension and retraction of the piston rod 21. The valve assembly 23 adopts an existing pneumatic control valve assembly including a pressure regulating filter 231, a three-position five-way pneumatic control valve (not shown in the internal diagram), a pilot valve (not shown in the internal diagram), and two foot switches. An external air supply pipe is connected to the pressure regulating filter 231. The pressure regulating filter 231 is connected to the three-position five-way pneumatic control valve. The three-position five-way pneumatic control valve is connected to the cylinder barrel 21. 2. The pilot valve and the two foot switches are all connected by air circuits. The pilot valve is connected to the air circuit of the cylinder 22. The two foot switches are the first switch 241 and the second switch 242. Both the first switch 241 and the second switch 242 are connected to the air circuit of the three-position five-way pneumatic control valve. Pressing the first switch 241 is used to control the rise of the piston rod 21, and pressing the second switch 242 is used to control the fall of the piston rod 21. In this embodiment, the pressure regulating filter 231 is an Airtac BFR4000, the three-position five-way pneumatic control valve is an Airtac 4A430C-15 three-position five-way pneumatic control valve, the pilot valve is a Hazzar ASP630F04-12S pneumatic pilot-operated speed control valve, the first switch 241 and the second switch 242 are both AUTOMAN FV320 pneumatic switch foot valves, and the cylinder 22 is an Airtac SC200*450 high-thrust standard cylinder. The first driving component 2 can also be an existing electric cylinder. By connecting to an external circuit, the extension and retraction of the electric cylinder piston rod can be controlled by two jog buttons to achieve the purpose of lifting and lowering.

[0072] like Figure 1 and Figure 9As shown, the top end of the piston rod 21 is connected to the center of the lower end face of the first slider plate 4. The first slider plate 4 is a rectangular plate. When the piston rod 21 moves up and down, it drives the first slider plate 4 to move up and down. The guide rod group 3 is set on the bottom frame 1. The guide rod group 3 includes two or more guide rods 31. In this embodiment, the guide rod group 3 includes four guide rods 31. The guide rods 31 are cylindrical rods. The lower ends of the four guide rods 31 are connected to the four corners of the top plate 11. The four guide rods 31 are arranged in a circular array on the top plate 11. The first slider plate 4 is provided with four second through holes 401 corresponding to the guide rods 31. The four guide rods 31 play a guiding role when the first slider plate 4 moves up and down. The second through holes 401 of the first slider plate 4 are provided with oil-impregnated bearings corresponding to the outer diameter of the guide rods 31. By setting the oil-impregnated bearings, the first slider plate 4 slides more smoothly relative to the guide rods 31. By setting four guide rods 31, the device as a whole is rectangular.

[0073] like Figure 1 , Figure 2 and Figure 9 As shown, the first lower support plate 5 is connected to the first slider plate 4. The first slider plate 4 has a first inner hole 41 on one side. The first lower support plate 5 has a first hole rod 53 corresponding to the first inner hole 41 connected to the middle position of the inner side of the first lower support plate 5. The first inner hole 41 is a circular hole, and the first hole rod 53 is a cylindrical rod. The first hole rod 53 and the first inner hole 41 are clearance-fitted. The first lower support plate 5 is inserted into the first inner hole 41 through the first hole rod 53, thereby rotatably connecting with the first slider plate 4. The first lower support plate 5 is rotatable relative to the first slider plate 4. The first slider plate 4 has a second locking screw 411 corresponding to the first inner hole 41. The second locking screw 411 enters the first inner hole 41 downward. When the second locking screw 411 is tightened, the lower end of the second locking screw 411 abuts against the first hole rod 53, thereby restricting the rotation of the first lower support plate 5.

[0074] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the first lower support plate 5 in this embodiment is a rectangular plate. A notch 501 is provided in the middle of the outer side of the first lower support plate 5. A first shoulder 51 and a second shoulder 52 are formed on both sides of the notch 501. The first shoulder 51 and the second shoulder 52 have different horizontal heights. The horizontal height of the first lower support plate 5 gradually decreases spirally from the first shoulder 51 to the second shoulder 52. In use, the side of the first lower support plate 5 with the notch 501 is used to insert the shock absorber spring through the side gap of the shock absorber spring. The notch 501 corresponds to the outer diameter of the shock absorber cylinder and is used to accommodate the shock absorber cylinder. The first shoulder 51, the second shoulder 52 and the plate surface next to the notch 501 are used to support the shock absorber spring. The area of ​​the notch 501 is A, and the surface area of ​​the first lower support plate 5 is B, where A ≤ 0.6B. The notch 501 includes a semicircular portion 5011 and a rectangular portion 5012. The radius of the semicircular portion 5011 is R, where 20mm ≤ R ≤ 70mm. In this embodiment, R = 38mm. The lengths of the first shoulder 51 and the second shoulder 52 are both W1, where W1 ≥ R. In this embodiment, W1 = 60mm. The length of the notch 501 is D, where D = 2R, and 2W1 > ​​D. The depth of 1 is S, the length of the rectangular part 5012 is the length of the notch 501, the depth of the rectangular part 5012 is W2, W2 < R, in this embodiment W2 = 25mm, S = R + W2 = 63mm, the width of the first lower support plate 5 is W3, S < 0.7W3, that is, the depth of the notch 501 is less than 70% of the width of the first lower support plate 5, in this embodiment W3 = 130mm, the depth of the notch 501 is less than half the width of the first lower support plate 5. In this embodiment, A < 0.3B. The plate surface next to the notch 501 on the first lower support plate 5 can support most of the shock absorber springs. Since the diameter of the existing automotive shock absorber cylinder is basically less than 76mm (the length of the notch 501), the length and depth of the notch 501 in this embodiment can accommodate most of the automotive shock absorber cylinder. The remaining part of the first lower support plate 5 in the width direction after removing the notch 501 can accommodate the shock absorber springs. The length of the first shoulder 51 plus the length of the second shoulder 52 plus the length of the rectangular part 5012 equals the length of the first lower support plate 5. In this embodiment, the length of the first lower support plate 5 = 196mm. The working width of the support plate 5 that can accommodate the shock absorber spring is X, which is measured from the center of the semicircle 5011. The working width of the first lower support plate 5 is the radius of the semicircle 5011 plus the distance from the deepest part of the notch 501 to the welded part at the root of the first hole rod 53. In this embodiment, X = 38mm + 45mm = 83mm, which corresponds to an outer diameter of 166mm (2X) for the shock absorber spring that can be accommodated. However, the outer diameter of the lower end of most automotive shock absorber springs on the market is less than 166mm. Therefore, the first lower support plate 5 in this embodiment is suitable for most automotive shock absorber springs on the market (for a very small number of shock absorber springs with larger outer diameters, a larger first lower support plate 5 is used).

[0075] When the first lower support plate 5 is in use, after the first lower support plate 5 is inserted into the shock absorber spring, the second locking screw 411, which restricts the rotation of the first lower support plate 5, is loosened (the second locking screw 411 can also be left untightened before the first lower support plate 5 is inserted into the shock absorber spring, so there is no need to loosen it). When the cylinder of the first drive component 2 is working, it pushes the first slider plate 4 upward through the piston rod 21. The first lower support plate 5 moves upward under the drive of the first slider plate 4 to compress the shock absorber spring. When the shock absorber spring does not remain vertical but is offset by a certain angle (due to uneven force on the chuck or hook used to press the shock absorber spring, causing the shock absorber spring to offset), the first lower support plate 5 can offset by a certain angle with the shock absorber spring to ensure that the upper surface of the first lower support plate 5 can better contact the shock absorber spring. Even when the shock absorber spring is offset, the spring can continue to be compressed. Disassembly of the shock absorber spring is also possible. For damper springs, it is not necessary to ensure that the damper spring and damper cylinder are in a completely vertical state (existing technologies using chucks to compress springs require that the damper spring and damper cylinder be kept in a vertical state). For example, existing damper spring removal and installation tools, such as the hydraulic spring remover disclosed in patent announcement number CN213859083U, use a chuck at the bottom and a chuck at the top (some tools use hooks). When the damper spring is compressed by the chuck rising, the lower chuck is in a horizontal state, while the upper chuck (or hook) causes the damper spring and damper cylinder to shift due to differences in height and force. Since the lower chuck is horizontal and cannot rotate, it is easy for the lower chuck to be subjected to force on one side. Continued compression of the spring can easily lead to uneven force on the damper spring, causing slippage. After removing the top rubber nut, the damper spring is prone to popping out, causing an accident. In this embodiment, the first lower support plate 5 can shift with the damper spring at a certain angle to ensure that the damper spring is subjected to uniform force under shifting conditions, thus improving safety.

[0076] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, two first hooks 55 are movably connected to the first lower support plate 5. The first hooks 55 are used to hook onto the shock absorber spring from top to bottom. In this embodiment, the first lower support plate 5 is provided with two first positioning blocks 54, which are arranged radially along the semicircular portion 5011. The first positioning blocks 54 are provided with first serrated portions 541, and the distance between the tips of adjacent teeth in the first serrated portions 541 is 2mm. The first hooks 55 are provided with second serrated portions 552 and sidewalls on both sides of the second serrated portions 552. The height of the sidewalls is higher than the height of the second serrated portions 552. The second serrated portions 552 correspond to the first serrated portions 541. The first hooks 55 can be adjusted by inserting the second serrated portions 552 into different positions of the first serrated portions 541. The position of the first hook 55 relative to the notch 501 is adjusted to accommodate shock absorber springs of different diameters. The two side walls of the first hook 55 cover the first positioning block 54. When the first hook 55 is placed on the first positioning block 54, the front, back, left and right positions of the first hook 55 are fixed. The front end of the first hook 55 is provided with a first hook groove 551. The first hook groove 551 is arc-shaped and downward-facing. The first hook groove 551 is used to accommodate the spring wire of the shock absorber spring. In use, the first lower support plate 5 removes part of the notch 501 to support the spring wire of the shock absorber spring. The first hook groove 551 of the first hook 55 hooks onto the spring wire of the shock absorber spring. The first hook 55 restricts the displacement of the shock absorber spring in the plane and prevents the shock absorber spring from sliding when pressed upward, thereby improving safety during operation.

[0077] like Figure 1 , Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the upper clamping assembly is used to clamp the shock absorber spring from the upper part of the shock absorber spring. The upper clamping assembly includes a second driving member 61 and a first working member. The top of the guide rod group 3 is connected to an upper top plate 32. The upper top plate 32 is a rectangular plate corresponding to the frame top plate 11. The second driving member 61 includes a second slider plate 611, a second lead screw 612 and a first handwheel 613. In this embodiment, the second slider plate 611 is an X-shaped plate. The second slider plate 611 is provided with four third through holes 6111 corresponding to the four guide rods 31. The lower end surface of the second slider plate 611 is provided with a second internal thread hole 6112 at the position corresponding to the third through hole 6111. The second internal thread hole 6112 is coaxially arranged with the corresponding third through hole 6111 and the inner diameter of the second internal thread hole 6112 is larger than the inner diameter of the third through hole 6111. The upper top plate 32 is provided with a third internal threaded hole corresponding to the second lead screw 612. The second lead screw 612 is threadedly connected to the upper top plate 32, and its upper end extends above the upper top plate 32. A first handwheel 613 is connected to the top of the second lead screw 612. When the first handwheel 613 is rotated, the second lead screw 612 rotates relative to the upper top plate 32, thereby moving upward or downward. The upward or downward movement of the second lead screw 612 can be changed by adjusting the rotation direction of the first handwheel 613. The upper and lower end faces of the center part of the second slider plate 611 are provided with first bearing seat holes 6113. The two first bearing seat holes 6113 are connected by a central hole. The lower end of the second lead screw 612 is connected to a through rod 61 corresponding to the central hole. 21. Each of the two first bearing seat holes 6113 is provided with a first bearing 6114. The upper end face of the first bearing 6114 rotates relative to the lower end face. The through rod 6121 of the second lead screw 612 passes through the central hole and the two first bearings 6114. The lower end of the through rod 6121 is connected to a central bolt 6112. The central bolt 6112 presses the central washer 6123 against the lower end face of the first bearing 6114 on the lower end face of the second slider plate 611, thereby completing the movable connection between the second lead screw 612 and the second slider plate 611. When the second lead screw 612 rotates relative to the upper top plate 32, it can move up or down. When the second lead screw 612 moves up or down, it drives the second slider plate 611 to move up or down.

[0078] like Figure 1 , Figure 13 , Figure 14 and Figure 15As shown, the first working part is connected to the second slider plate 611 of the second driving part 61. The first working part includes a sliding sleeve 62, a first cantilever 63, and a second hook 7. The sliding sleeve 62 is sleeved on the guide rod 31, and the inner diameter of the sliding sleeve 62 corresponds to the outer diameter of the guide rod 31. In this embodiment, one sliding sleeve 62 is sleeved on each of the four guide rods 31. The outer wall of the upper half of the sliding sleeve 62 is provided with a first external thread 621, which corresponds to the second internal thread hole 6112 of the second slider plate 611, so that the sliding sleeve 62 is threadedly connected to the second slider plate 611. When the second slider plate 611 moves up and down, it drives the four sliding sleeves 62 to move as a whole. The first cantilever 63 is connected to the sliding sleeve 62. The first cantilever 63 is a rectangular block. One end of the first cantilever 63 is provided with a fourth through hole 632, which corresponds to the guide rod 31. Thus, the four first cantilever 63 are sleeved on the corresponding guide rod 31 through the fourth through hole 632. The upper surface of one end of the first cantilever 63 is provided with a fourth internal thread hole 6321. The fourth internal thread hole 6321 and the fourth through hole 632 are in a coaxial position, and the inner diameter of the fourth internal thread hole 6321 is larger than the inner diameter of the fourth through hole 632. The outer wall of the lower half of the sliding sleeve 62 is provided with a second external thread 622, which corresponds to the fourth internal thread hole 6321. Thus, the first cantilever 63 and the sliding sleeve 62 are threadedly connected. When the four sliding sleeves 62 are driven up and down as a whole by the second sliding block 611, the four first cantilever 63 are driven up and down as a whole by the corresponding sliding sleeve 62. The middle part of the sliding sleeve 62 is connected to a first handwheel block 623, which is an annular block. Since the sliding sleeve 62 is threadedly connected to the upper second sliding block 611 and the lower first cantilever 63, rotating the first handwheel block 623 by hand can drive the sliding sleeve 62 to rotate. The first external thread 621 and the second external thread 622 rotate in opposite directions. Since the second sliding block 611 is fixed at this time, rotating the sliding sleeve 62 can convert the rotational motion of the sliding sleeve 62 into the vertical displacement of the first cantilever 63, thus rotating the first handwheel block 623... The first cantilever 63 can be gradually moved closer to or further away from the second slider plate 611. The vertical position of the first cantilever 63 can be finely adjusted by the first handwheel block 623, and the position of each first cantilever 63 can be individually finely adjusted by the corresponding first handwheel block 623. The upper and lower teeth design of the sliding sleeve 62 doubles the adjustment speed. If it is necessary to adjust the height of all four first cantilever 63 at the same time, the first handwheel 613 is rotated to drive the second slider plate 611 to move up and down, thereby driving the four first cantilever 63 to move as a whole. In this embodiment, the sliding sleeve 62 is made of self-lubricating graphite brass oil-impregnated bearing. The inner diameter of the oil-impregnated bearing corresponds to the outer diameter of the guide rod 31, so that it slides smoothly when the guide rod 31 moves up and down. The outer surface of the oil-impregnated bearing is machined with a first external thread 621 and a second external thread 622 with opposite helical directions. The first handwheel block 623 is fixed in the middle position of the sliding sleeve 62 by the set screw on the side wall.

[0079] like Figure 14 , Figure 15 , Figure 16 , Figure 17 and Figure 18 As shown, the second hook 7 is connected to the first cantilever 63. The second hook 7 is used to hook onto the shock absorber spring. The second hook 7 includes a hook portion 71 and an extension post 72. The hook portion 71 is provided with a second hook groove 711. The second hook groove 711 is arc-shaped and the opening faces downward. The second hook groove 711 is used to accommodate the spring wire of the shock absorber spring. The extension post 72 is connected to the back of the hook portion 71. The extension post 72 is cylindrical. The first cantilever 63 is provided with a first through groove 631, which is a rectangular through groove. The first through groove 631 extends along the length direction of the first cantilever 63 and passes through from the front to the back of the first cantilever 63. A first displacement block 65 is placed in the first through groove 631. The first displacement block 65 can move along the length direction of the first through groove 631 and rotate within the first through groove 631 to adjust its orientation. The first displacement block 65 is a cube and is provided with a first through hole 651 corresponding to the extension post 72. The first through hole 651 is a round hole. The extension post 72 is clearance-fitted with the first through hole 651, so that the extension post 72 can move back and forth or rotate at a certain angle relative to the first displacement block 65. The upper surface of the first cantilever 63 is provided with a second through groove 633 corresponding to the first through groove 631. The lower end of the second through groove 633 communicates with the first through groove 631. A first locking screw 634 is inserted through the second through groove 633. The head of the first locking screw 634 is located above the second through groove 633, and the rod of the first locking screw 634 is located in the second through groove 633 and can move back and forth along the second through groove 633. The first locking screw 634 is threadedly connected to the first displacement block 65, and the lower end of the first locking screw 634 abuts against the extension post 72. A first locking nut 635 is threadedly connected to the first locking screw 634. When the first displacement block... After the extension post 72 slides to a predetermined position and angle within the first through groove 631, and after the extension post 72 moves back and forth and rotates to a predetermined position within the first displacement block 65, the first locking screw 634 is tightened so that the lower end of the first locking screw 634 abuts against the extension post 72, thereby restricting the position of the extension post 72. Then, the first locking nut 635 is tightened. Since the first locking nut 635 is threadedly connected to the first locking screw 634, tightening the first locking nut 635 can cause the first locking screw 634 to move upward, thereby driving the first displacement block 65 to move upward, thus fixing the position of the first displacement block 65 within the first through groove 631.

[0080] like Figure 15 , Figure 19 and Figure 20As shown, the second hook 7 is also equipped with a safety buckle, which includes a buckle plate 73, a buckle rod 74, a locking spring 75, and an end block 76. The buckle plate 73 is parallel to the hook portion 71 and has a first protrusion 77. The hook portion 71 has a first groove 712 corresponding to the first protrusion 77. The buckle rod 74 is a cylindrical rod, and the buckle plate 73 and the buckle rod 74 are connected to form an L-shape. The second hook 7 has a fifth through hole 721 corresponding to the buckle rod 74. The buckle rod 74 passes through the fifth through hole 721 from front to back through the second hook 7. The end block 76 is connected to the tail end of the buckle rod 74. The locking spring 75 is sleeved on the buckle rod 74 and is located between the end block 76 and the second hook 7. On one side, when the safety buckle is in use, when the hook 71 hooks onto the spring wire of the shock absorber spring, the end block 76 pushes it outward toward the buckle rod 74. The buckle rod 74 and the buckle piece 73 pass under the spring wire hooked by the hook 71. Rotating the buckle rod 74 moves the buckle piece 73 to the position corresponding to the hook 71. The first protruding block 77 enters the first groove 712, restricting the rotation of the buckle piece 73. At this time, the buckle piece 73 is pressed onto the hook 71 by the elastic force of the locking spring 75. The buckle piece 73 and the buckle rod 74 surround the area under the spring wire hooked by the hook 71, preventing the shock absorber spring from sliding and popping out directly when compressed, thus improving the safety of the device during use.

[0081] In this embodiment, when using the device, manually operate the car shock absorber assembly and push the lower end of the shock absorber spring onto the first lower support plate 5. The shock absorber cylinder is located within the notch 501. The portion of the first lower support plate 5, excluding the notch, supports a section of the spring wire of the shock absorber spring. Move the first hook 55 along the extension direction of the first positioning block 54 above the shock absorber spring and lower it. The first hook 55 hooks onto the shock absorber spring, and the first hook 55 is entirely restricted by the first positioning block 54. Rotate the first handwheel 613, causing the second slider plate 611 to move downward, thereby causing the four first cantilever arms 63 to move downward as a whole. The two first cantilever arms 63 located on the side where the shock absorber is located move to the side of the upper end of the shock absorber spring (in this embodiment, the first working part has four cantilever arms, generally used with the first lower support plate 5). (Two cantilever arms on the same side) Due to the spiral shape of the shock absorber spring, the heights of the corresponding points of the two first cantilever arms 63 are different. By rotating the first handwheel block 623 corresponding to each first cantilever arm 63, the two first cantilever arms 63 are adjusted to the height corresponding to the corresponding shock absorber spring. Relative to the guide rod 31, rotating the first cantilever arm 63 causes the corresponding two second hooks 7 to move towards the shock absorber spring. The front-back position of the first displacement block 65 in the first through groove 631 is adjusted to regulate the front-back position of the second hooks 7. The angle of the second hooks 7 is adjusted by adjusting the angle of the first displacement block 65 in the first through groove 631. The angle of the second hooks 7 is adjusted by adjusting the left-right position of the extension column 72 in the first displacement block 65 and by rotating the angle of the extension column 72 in the first displacement block 65. The position of the hook 7 and the orientation of the second hook groove 711 allow the second hook 7 to hook onto the shock absorber spring. Since the vertical height, front-to-back position, left-to-right position, angle, and orientation of the two second hooks 7 can be adjusted independently, they can accommodate shock absorber springs of different heights, diameters, pitches, and helix angles. After the two second hooks 7 are hooked onto the shock absorber spring, tighten the first locking nut and the first locking screw 634 to fix the positions of the second hooks 7 and the first displacement block 65. Stepping on the foot switch to control the upward movement activates the cylinder, causing the piston rod 21 to push the first slider plate 4 upward. The first slider plate 4 synchronously drives the first lower support plate 5, which lifts the lower end of the shock absorber spring upward. Since there are two second hooks 7 at the upper end of the shock absorber spring... The upper part is pressed against the shock absorber spring, thus compressing the shock absorber spring. After the shock absorber spring is compressed to the predetermined stroke, the shock absorber cylinder can be separated from the shock absorber spring by removing the top rubber nut at the top of the shock absorber. The shock absorber cylinder is then moved downwards out of the shock absorber spring, and a new shock absorber cylinder is inserted into the shock absorber spring from below (at this time, the spring is still in a compressed state). Then, the top rubber nut at the top of the shock absorber cylinder is threaded to the top of the shock absorber cylinder, completing the replacement of the shock absorber cylinder. After replacement, the foot pedal switch controlling the descent is pressed, the cylinder operates, and the piston rod 21 retracts, driving the first slider plate 4 and the first lower support plate 5 to move downwards synchronously until the first lower support plate 5 no longer exerts an upward lifting force on the shock absorber spring. Then, the first locking nut and the first locking screw 634 are loosened.Remove the two second hooks 7, then remove the two first hooks 55, and remove the shock absorber after replacing the shock absorber cylinder. The work is now complete.

[0082] like Figure 9 and Figure 21 As shown, a second lower support plate 56 is detachably connected to the first slider plate 4. The second lower support plate 56 is mirror-symmetrical to the first lower support plate 5. The second lower support plate 56 is connected to the other side of the first slider plate 4 opposite to the first lower support plate 5. The first slider plate 4 has a fifth inner hole 42 on this side. A second hole rod 563 corresponding to the fifth inner hole 42 is connected to the second lower support plate 56. The fifth inner hole 42 is a circular hole, and the second hole rod 563 is a cylindrical rod. The second lower support plate 56 is rotatably connected to the first slider plate 4 through the second hole rod 563. The first slider plate 4 has a third locking screw 421 corresponding to the fifth inner hole 42. When the third locking screw 421 is tightened, the lower end of the third locking screw 421 abuts against the second hole rod 563, thereby restricting the rotation of the second lower support plate 56. The second lower support plate 56 is provided with a third shoulder 57 corresponding to the first shoulder 51 and a fourth shoulder 58 corresponding to the second shoulder 52. The horizontal height of the second lower support plate 56 spirals from the third shoulder 57 to the fourth shoulder 58. The spiral direction of the second lower support plate 56 is opposite to that of the first lower support plate 5. The shock absorber spring has left-hand and right-hand helical. When the first lower support plate 5 cannot fit against the support of the shock absorber spring, it means that the spiral direction is opposite. At this time, the shock absorber is placed on the second lower support plate 56 on the other side, and the two first cantilever arms 63 and two second hooks 7 on the other side of the first working part are used to complete the installation and removal of the shock absorber spring. Alternatively, the first lower support plate 5 can be removed and the second lower support plate 56 can be replaced on the same side.

[0083] like Figure 22 , Figure 23 and Figure 24As shown, a first clamping assembly 81 is connected to the first slider plate 4. The first clamping assembly 81 includes a first plate base 811, a third lead screw 812, two first jaws 813, and a first crank 814. The first plate base 811 is connected to the side adjacent to the first slider plate 4 and the first lower support plate 5. The third lead screw 812 is rotatably connected to the first plate base 811. The third lead screw 812 is a positive and negative thread screw. The third lead screw 812 is provided with two external threads with opposite helical directions. The two first jaws 813 are movably connected to the third lead screw 812 through a section of external thread. The first crank 814 is detachably connected to one end of the third lead screw 812. When the first crank 814 is rotated, it drives the third lead screw 812 to rotate. The two first jaws 813 move towards each other or away from each other. When the two first jaws 813 move towards each other, they are used to clamp the shock absorber cylinder. A support plate 82 is connected to the bottom frame 1. The support plate 82 is located on the same side as the first clamping assembly 81, facilitating the lifting of the shock absorber cylinder from below (some automotive shock absorber cylinders have a fork at the bottom). The support plate 82 is rotatably connected to the fourth lead screw 821, which is vertically positioned. Below the support plate 82 is a third plate seat 83 connected to the fourth lead screw 821. The third plate seat 83 is connected to the two support rods 13 of the bottom frame 1. The lower end of the fourth lead screw 821 is rotatably connected to the third plate seat 83, and the upper end of the fourth lead screw 821 is rotatably connected to the first plate seat 811. A first adjusting rod 831 is movably connected to the third plate seat 83 via a bearing. The first adjusting rod 831 is perpendicular to the fourth lead screw 821, and the innermost end of the first adjusting rod 831 is equipped with a first bevel gear. The lower end is provided with a second bevel gear that meshes with the first bevel gear. Through the 90° engagement of the first bevel gear and the second bevel gear (the two bevel gears are inside the third plate seat 83, not shown in the figure, and the existing bevel gears can be used), the rotation of the first adjusting rod 831 is converted into the rotation of the fourth lead screw 821. The first adjusting rod 831 is provided with a first crank hole 8311 corresponding to the first crank 814. The first crank 814 drives the first adjusting rod 831 to rotate, thereby driving the fourth lead screw 821 to rotate and drive the support plate 82 to move up and down, which can adapt to the shock absorber cylinder of different heights.To improve stability when clamping the damper cylinder, a second clamping assembly 84 is also provided. The second clamping assembly 84 includes a second plate base 841, a fifth lead screw 842, two second jaws 843, and a second crank 845. A sixth lead screw 844 is also provided between the first plate base 811 and the third plate base 83. The upper end of the sixth lead screw 844 is rotatably connected to the first plate base 811, and the lower end of the sixth lead screw 844 is rotatably connected to the third plate base 83. A second adjusting rod 832 is movably connected to the third plate base 83 via a bearing. The second adjusting rod 832 is perpendicular to the sixth lead screw 844, and the innermost end of the second adjusting rod 832 is provided with... There is a third bevel gear, and the lower end of the sixth lead screw 844 is provided with a fourth bevel gear that meshes with the third bevel gear. Through the 90° engagement of the third and fourth bevel gears (the two bevel gears are inside the third plate seat 83, not shown in the figure; existing bevel gears can be used), the rotation of the second adjusting rod 832 is converted into the rotation of the sixth lead screw 844. The second adjusting rod 832 is provided with a second crank hole 8321 corresponding to the first crank 814. After the first crank 814 is inserted into the second crank hole 8321, turning the crank 814 can drive the second adjusting rod 832 to rotate, thereby driving the sixth lead screw 844 to rotate. The second plate base 841 is rotatably connected to the sixth lead screw 844. The height of the second plate base 841 is adjusted by rotating the sixth lead screw 844. The sixth lead screw 844 is parallel to the fourth lead screw 821. The support plate 82 has a through hole corresponding to the sixth lead screw 844 to facilitate its passage (the vertical movement of the support plate 82 does not affect the rotation of the sixth lead screw 844). The second plate base 841 has a through hole corresponding to the fourth lead screw 821 to facilitate its passage (the vertical movement of the second plate base 841 does not affect the rotation of the fourth lead screw 821). The fifth lead screw 842 is located on the second plate base 841. The second plate seat 841 is rotatably connected to the second plate seat 841. The fifth lead screw 842 also adopts a positive and negative tooth screw. The two second jaws 843 are rotatably connected to the fifth lead screw 842. One end of the fifth lead screw 842 is detachably connected to the second crank handle 845. When the second crank handle 845 is rotated, it can drive the fifth lead screw 842 to rotate. When the fifth lead screw 842 rotates, it drives the two second jaws 843 to move towards each other or away from each other. When the two second jaws 843 move towards each other, they are used to clamp the shock absorber cylinder and improve the stability of the shock absorber cylinder. The height of the second plate seat 841 is adjustable, so the height of the two second jaws 843 is adjustable.

[0084] This embodiment utilizes the first clamping assembly 81, the second clamping assembly 84, the support plate 82, and the upper first cantilever 63 and second hook 7 to complete the assembly and disassembly of the shock absorber. First, adjust the position of the support plate 82 according to the height of the shock absorber cylinder, and place the shock absorber cylinder on the support plate 82. Use the two first claws 813 of the first clamping assembly 81 to clamp the shock absorber cylinder to keep it vertical. Then, adjust the second clamping assembly 84 to a suitable height, and use the two second claws 843 to clamp the shock absorber cylinder. Change the direction of the second hook 7 on the two first cantilever 63 above the side where the first clamping assembly 81 is located (originally, one of the two first cantilever 63 was used with the first lower support plate 5, and the other first cantilever 63 was used with the second lower support plate 56, so the second hook 7 was facing the other side). That is, the extension column 72 of the second hook 7 is moved from the first displacement... Pull out of block 65, then insert extension post 72 into first displacement block 65 from the other side, so that the hook portion 71 of the two second hooks 7 is above the side where the first clamping assembly 81 is located. Rotate the first handwheel 613 to make the second slider plate 611 drive the two second hooks 7 to move down. By fine-tuning the position and angle of the first displacement block 65 and the position of extension post 72 in the first displacement block 65, and by rotating the sliding sleeve 62 to fine-tune the height of the two second hooks 7, so that the two second hooks 7 hook onto the shock absorber spring. Tighten the first locking nut and the first locking screw 634. Continue to rotate the first handwheel 613, and the two second hooks 7 compress the shock absorber spring downward. After the shock absorber spring is compressed to the predetermined position, the top rubber nut at the top rubber of the shock absorber can be removed. Rotate the first handwheel 613 in the opposite direction, and the two second hooks 7 gradually move upward and no longer compress the shock absorber spring, thus completing the removal of the shock absorber spring. After disassembly, loosen the two first clamps 813 and the two second clamps 843, remove the old shock absorber cylinder, and replace it with a new shock absorber cylinder. The new shock absorber cylinder is fixed by the two first clamps 813 and the two second clamps 843. Then, attach the shock absorber spring to the new shock absorber cylinder. Next, use the two second hooks 7 to compress the shock absorber spring downwards. After compressing the shock absorber spring to the predetermined position, tighten the top rubber nut at the top rubber of the shock absorber. Then, turn the first handwheel 613 in the opposite direction. The two second hooks 7 gradually move upwards and no longer compress the shock absorber spring, completing the replacement of the shock absorber cylinder. Two clamping components and a support plate are set on one side adjacent to the first lower support plate 5. In places without an air source, the shock absorber spring can be removed and installed by manually moving the second hooks 7 downwards.

[0085] Example 2

[0086] like Figure 25 , Figure 26 and Figure 27As shown, the difference from Embodiment 1 is that the first clamping component 81, the second clamping component 84 and the support plate 82 in this embodiment are disposed on the opposite side of the first lower support plate 5, and the first clamping component 81 is connected to the side of the first slider plate 4 opposite to the first lower support plate 5. The upper clamping assembly also includes a second working component, which is located on the same side of the first clamping assembly 81 in this embodiment. The second working component includes two second cantilever arms 66 and a third suspension block 67. The two second cantilever arms 66 and the third suspension block 67 are all movably connected to the second slider plate 611. In this embodiment, the second slider plate 611 of the second driving component 61 is a rectangular plate. A second sliding member 614 is sleeved on the guide rod 31 below the second slider plate 611. The second sliding member 614 is a strip-shaped block. The two ends of the second sliding member 614 are respectively sleeved on the guide rods 31 on both sides. The second sliding member 614 is movably connected to the second slider plate 611 through a seventh screw 615. The second sliding member 614 is located between the two guide rods 31 and slides up and down along the guide rods 31. The seventh screw 615 is provided with positive and negative threads. The upper half of the thread is a right-hand thread, and the lower half of the thread is a left-hand thread. The upper half of the seventh screw 615... The seventh screw 615 is threadedly connected to the second slider plate 611, and the lower half of the seventh screw 615 is threadedly connected to the second slider 614. The upper end of the seventh screw 615 is connected to the first sleeve 617. By rotating the first sleeve 617, the seventh screw 615 can be driven to rotate. Since the second slider plate 611 is in a fixed state at this time, the rotation of the seventh screw 615 drives the second slider 614 to move up and down. Thus, the second slider 614 is movably connected to the second slider plate 611 through the seventh screw 615. The height of the two second sliders 614 can be changed by adjusting the corresponding first sleeve 617. In this embodiment, the first working part includes two sliding sleeves 62. The upper half of the sliding sleeve 62 is threadedly connected to the second slider 614. The height of the first cantilever 63 can be adjusted by rotating the sliding sleeve 62. In this embodiment, two sliding sleeves 62 and two first cantilever 63 are provided. The two first cantilever 63 are located on the side where the first lower support plate 5 is located.In this embodiment, a second cantilever 66 is movably connected to two guide rods 31 on the side where the second working part is located. The second cantilever 66 is sleeved on the guide rods 31 and can slide up and down along the guide rods 31. The second cantilever 66 is provided with a groove corresponding to the second slider 614. One end of the second slider 614 is located in the groove of the second cantilever 66. When the second slider 614 slides up and down along the guide rods 31, it drives the second cantilever 66 to slide up and down. The outermost end of the second cantilever 66 is arc-shaped. The second cantilever 66 is detachably connected to... A third hook 78 is attached. The third hook 78 is cylindrical and has a third hook groove 781. The third hook groove 781 is arc-shaped and has its opening facing downward. The third hook groove 781 is used to accommodate the spring wire of the shock absorber spring. The second cantilever 66 has a sixth through hole 661 corresponding to the third hook 78. The sixth through hole 661 is a circular hole. Each second cantilever 66 has two sixth through holes 661. The two sixth through holes 661 are arranged vertically to facilitate quick adjustment of the position of the third hook 78.

[0087] In this embodiment, an eighth lead screw 616 is also connected to the second slider plate 611. The eighth lead screw 616 also has a reverse thread design, with the upper half being a right-hand thread and the lower half being a left-hand thread. The upper half of the eighth lead screw 616 is threaded to the second slider plate 611, and the lower half is threaded to the third suspension block 67. Thus, the third suspension block 67 is movably connected to the second slider plate 611 through the eighth lead screw 616. The lower end of the second slider plate 611 is also connected to a guide rod 671 corresponding to the third suspension block 67. The third suspension block 67 is provided with a guide rod 671. The first sleeve 617 is also connected to the upper end of the eighth lead screw 616 corresponding to the through hole 1. By rotating the first sleeve 617, the eighth lead screw 616 can be driven to rotate. When the eighth lead screw 616 rotates, it drives the third suspension block 67 to move up and down along the guide rod 671. The third suspension block 67 is also provided with a sixth through hole 661 corresponding to the third hook 78, so that the third hook 78 can be detachably connected to the third suspension block 67. The third hook 78 on the third suspension block 67 cooperates with the third hook 78 on the two second cantilever 66. The three third hooks 78 hook the shock absorber spring from three directions. In use, rotating the first handwheel 613 drives the second slider plate 611 to move up and down via the second lead screw 612. The movement of the second slider plate 611 causes the two second sliding members 614 to move up and down, which in turn causes the two first cantilever arms 63 and the two second cantilever arms 66 to move up and down as a whole, facilitating quick and easy adjustment of the cantilever height. Regardless of which side of the cantilever is in operation, the first handwheel 613 can quickly adjust its height. When it is necessary to adjust the height of either of the two working cantilever arms, for example, adjusting the leftmost second cantilever arm 66, a sleeve rod is inserted into the corresponding first sleeve 617 (the upper top plate 32 has a through hole corresponding to the first sleeve 617, allowing the sleeve rod to pass through from top to bottom; after passing through, the lower end of the sleeve rod is inserted into the first sleeve 617). This causes the first sleeve 617 to rotate, fine-tuning the height of the corresponding second sliding member 614, thereby causing the corresponding second cantilever arm 66 to move up and down.In this embodiment, three third hooks 78 are provided on the two second cantilever arms 66 and the third suspension block 67 to hook the shock absorber spring. The first clamping assembly 81 and the second clamping assembly 84 below are used to fix the shock absorber cylinder. The support plate 82 is used to support the shock absorber cylinder. Then, by rotating the first handwheel 613, the second slider plate 611 can be driven downward. The second slider plate 611 drives the three third hooks 78 downward, pressing the shock absorber spring downward. When the shock absorber spring shifts left and right, the sleeve rod is inserted into the first sleeve 617 on the shifted side (all three first sleeves 617 are adjustable), thereby adjusting the shock absorber spring. The height of the third hook 78 is adjusted to ensure the concentricity of the shock absorber spring and the shock absorber cylinder. Continuing to rotate the first handwheel 613, the second slider 611 is driven downwards. After the shock absorber spring is compressed to the predetermined stroke, the shock absorber cylinder and spring can be separated by removing the bolt at the top rubber of the shock absorber. After removing the spring, the old shock absorber cylinder can be lowered for replacement. The new shock absorber cylinder is then secured using the two clamping components. The old shock absorber spring is then placed on the new shock absorber cylinder, and the old spring is compressed to the predetermined stroke. The bolt at the top rubber of the shock absorber is then tightened, completing the disassembly and assembly operation. No external air source or other power is required during this process; the disassembly and assembly of the shock absorber spring can be completed manually by rotating the first handwheel 613, making it suitable for use in environments without an external air source.

[0088] The difference from Embodiment 1 is that the second lead screw 612 in this embodiment has a forward and reverse thread design. The upper half of the thread of the second lead screw 612 is a right-hand thread, which is connected to the upper top plate 32. The lower half of the thread is a left-hand thread, which is connected to the second slider plate 611. Rotating the first handwheel 613 can also drive the second slider plate 611 to move up and down.

[0089] like Figure 28 and Figure 29As shown, the difference from Embodiment 1 is that in this embodiment, a tensioning rod 553 is also connected to the first hook 55. The tensioning rod 553 extends downward from the upper end of the first hook 55. A first slot 542 corresponding to the tensioning rod 553 is provided at the middle of the upper part of the first positioning block 54. A second slot 502 corresponding to the first slot 542 is provided on the first lower support plate 5. The tensioning rod 553 passes downward through the first slot 542 and the second slot 502. A pull rod nut 555 is threaded to the lower end of the tensioning rod 553. A tension spring 554 is sleeved on the tensioning rod 553. The lower end of the tension spring 554 is blocked by the pull rod nut 555. When the first hook 55 of this embodiment is used, the first hook 55 is placed on the first positioning block 54. The outer wall of the hook 55 is fitted onto the first positioning block 54 to restrict the left and right displacement of the first hook 55. Two corresponding serrated parts restrict the front and back displacement of the first hook 55. The tension rod 553 passes through the first positioning block 54 and the first lower support plate 5. The tension spring 554 is located between the first lower support plate 5 and the pull rod nut 555. Under the elastic force of the tension spring 554, the first hook 55 is pressed onto the first positioning block 54. When it is necessary to adjust the front and back position of the first hook 55, the first hook 55 is pulled upward. The first hook 55 overcomes the elastic force of the tension spring 554 and moves upward. After the two serrated parts separate, the first hook 55 can move back and forth. After moving to the predetermined position, the first hook 55 is put down. At this time, the first hook 55 is pressed onto the first positioning block 54 by the tension spring 554.

[0090] Example 3

[0091] like Figure 30 , Figure 31 , Figure 32 , Figure 33 , Figure 34 , Figure 35 and Figure 36The difference from Embodiment 2 is that the second driving component 61 in this embodiment further includes a third slider plate 618. The third slider plate 618 is a rectangular plate located between the second slider plate 611 and the upper top plate 32. The third slider plate 618 has four through holes corresponding to the four guide rods 31. The third slider plate 618 slides up and down along the guide rods 31. A ninth lead screw 672 is threaded onto the third slider plate 618. The ninth lead screw 672 includes a first working section 6721, a second working section 6722, and a third working section 6723 connected sequentially. The outer wall of the first working section 6721 has a right-hand thread, and the outer wall of the second working section 6722 has a left-hand thread. The first working section 6721 of the ninth lead screw 672 is threaded to the third slider plate 618, and the second working section 6722 of the ninth lead screw 672 is threaded to the second slider plate 618. The 611 threaded connection has a smooth outer wall for the third working section 6723, which penetrates the third suspension block 67. The third working section 6723 of the ninth screw 672 replaces the guide rod 671 in embodiment 2 to guide the third suspension block 67 to move up and down. The top end of the ninth screw 672 is also connected to the first sleeve 617. The sleeve rod is inserted into the first sleeve 617 at the top end of the ninth screw 672 (a through hole is provided on the upper top plate 32 at the position corresponding to the first sleeve 617 at the top end of the ninth screw 672, so that the sleeve rod can pass through from top to bottom. After passing through, the lower end of the sleeve rod is inserted into the first sleeve 617), which drives the first sleeve 617 at the top end of the ninth screw 672 to rotate, thereby driving the ninth screw 672 to rotate. Since the second slider plate 611 is in a fixed state at this time, the rotation of the ninth screw 672 drives the third slider plate 618 to move up and down, thereby adjusting the height of the third slider plate 618. In this embodiment, the third slider plate 618 and the three lower first sleeves 617 are provided with through holes to facilitate the sleeve rods to pass through and drive the lower first sleeves 617 to rotate. The middle of the seventh lead screw 615 is also connected to a second handwheel block 6151. The second handwheel block 6151 is detachably fixed to the seventh lead screw 615 by a set screw. The height of the corresponding second slider 614 can be finely adjusted by manually rotating the second handwheel block 6151. In this embodiment, the third slider plate 618 is also connected to the side of the first cantilever 63 and the second cantilever 66. Two pull rods 681 are connected to one side of the safety block 68. The side of the third slider plate 618 is provided with receiving grooves corresponding to the two pull rods 681. The safety block 68 switches between the working position and the storage position. In the storage position, the two pull rods 681 are located in the receiving grooves and the safety block 68 is close to the side of the third slider plate 618. In the working position, the safety block 68 is located directly above the shock absorber spring.The safety block 68 is provided with a first limiting through hole 680, which extends vertically through the safety block 68. The first limiting through hole 680 is a rectangular through hole used to place a limiting block 69. The limiting block 69 is a rectangular strip, and its shape corresponds to the first limiting through hole 680. The limiting block 69 can move freely up and down in the first limiting through hole 680 but cannot rotate on its own. The lower end of the limiting block 69 is provided with a limiting hole 691 corresponding to the first batch head 91. The first batch head 91 is a special hexagonal screwdriver bit for vibration dampers, such as... Figure 32 As shown, the top of the damper cylinder 92 is connected to a top rod 921. The outer wall of the top rod 921 has external threads for threaded connection and fixing of the top rubber nut 93. The top of the top rod 921 has a top rod slot 9211, which is an internal hexagonal hole. The size of the top rod slot 9211 varies depending on the damper, so the first batch head 91 has multiple models. The first batch head 91 includes a handle 911, a connecting part 912, and a bit 913. The handle 911 is located at the upper end and is hexagonal. The connecting part 912 connects the handle 911 to the bit 913. The bit 913 is pentagonal, hexagonal, or quincunx-shaped. The handle 911 of the same set of first batch heads 91 is hexagonal. The screwdriver bits 913 have the same diameter for easy connection to external wrenches, while the screwdriver bits 913 have different diameters to accommodate different diameter push rod slots 9211. In the prior art, when disassembling the top rubber nut 93, the appropriate first screwdriver bit 913 is placed into the push rod slot 9211. One hand of the operator holds the first screwdriver bit 91 in place with an Allen wrench, while the other hand uses a socket wrench to disassemble the top rubber nut 93 (the socket wrench is placed on the top rubber nut 93, and the handle of the socket wrench extends outward perpendicular to the socket for easy application of force. At this time, the first screwdriver bit 91 penetrates the socket of the socket wrench and enters the push rod slot 9211). This process is cumbersome and unsafe. The device in this embodiment is equipped with a safety block 68 and a limiting block 69. The limiting block 69 is connected to the handle 911 of the first batch head 91, which can connect to different models of first batch heads 91. In use, after disassembling the sleeve of the top rubber nut 93 and connecting it to the top rubber nut 93, the first batch head 91 passes through the sleeve and the bit 913 below the first batch head 91 enters the top rod hole groove 9211. Since the limiting block 69 is connected to the handle 911 on the first batch head 91, the limiting block 69 restricts the rotation of the first batch head 91, thus replacing the need for personnel to hold the Allen wrench. Furthermore, since the safety block 68 is located above the vibration damper when in the working position, and the first batch head 91 is located at the center hole of the top rubber, even if the top rubber pops out after the top rubber nut 93 is disassembled, it will be blocked by the safety block 68, preventing it from popping out and injuring people, thus improving work safety.

[0092] Example 4

[0093] like Figure 37 , Figure 38 and Figure 39As shown, the difference from Embodiment 3 is that in this embodiment, the limiting block 69 and the safety block 68 are movably connected. The front and rear ends of the safety block 68 are each provided with a second limiting through hole 683 corresponding to the first limiting through hole 680. The second limiting through hole 683 is a strip-shaped hole, and a first pin 682 is provided inside the second limiting through hole 683. The first pin 682 passes through the two second limiting through holes 683 from front to back through the safety block 68. The outer diameter of the head at both ends of the first pin 682 is larger than that of the second limiting through hole 683, thus the first pin 682 is fixed in its front-to-back position within the second limiting through hole 683 but can slide left and right. The limiting block 69 is provided with a corresponding... The third limiting through hole 692 is set along the length of the limiting block 69 and passes through the limiting block 69 from front to back. The middle part of the first pin 682 is located in the third limiting through hole 692, thereby limiting the vertical displacement distance of the limiting block 69. The limiting block 69 is movably connected to the safety block 68 through the first pin 682. When the limiting block 69 is not in use, it does not need to be removed to prevent the limiting block 69 from being lost. When the limiting block 69 is in use, it can limit the sudden upward movement of the limiting block 69, preventing the top rubber nut 93 from suddenly popping out and pushing the first batch head 91 and the limiting block 69 upward suddenly, causing injury, and improving the safety during use.

[0094] Example 5

[0095] like Figure 40 As shown, the difference from Embodiment 3 is that the device in this embodiment is also equipped with a guardrail, which includes one or more railings 89. The railings 89 surround the shock absorber spring and are U-shaped. The lower ends of the two railings 89 are detachably connected to the side of the first slider plate 4. Lifting the guardrail upwards can separate the guardrail from the first slider plate 4. When the first working part or the second working part of the device is used to disassemble or assemble the shock absorber spring, the guardrail can be installed on the side where the first working part or the second working part is located to prevent the spring from jumping out laterally and to play a protective role.

[0096] Example 6

[0097] like Figure 41As shown, the difference from Embodiment 1 is that the first lower support plate 5 in this embodiment is generally semi-circular. The shape and area of ​​the notch 501 are the same as those in Embodiment 1, and the dimensions of the semi-circular part and the rectangular part are also the same. The radius of the semi-circular part 5011 is R=38mm, the length of the notch 501 is D=2R=76mm, the depth of the rectangular part 5012 is W2=25mm, and the depth of the notch 501 is S=63mm. The length of the first shoulder 51 and the second shoulder 52 is W1, W1=41mm, the width of the first lower support plate 5 is W3=130mm, the area of ​​the notch 501 is A, and the area of ​​the upper surface of the first lower support plate 5 is B. In this embodiment, A<0.4B, and the semi-circular ring surface of the first lower support plate 5 can also support most of the shock absorber springs during use.

[0098] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A shock absorber spring disassembly and assembly device applicable to various specifications, characterized in that, The device includes a base frame (1), a first drive member (2) connected to the base frame (1), a guide rod assembly (3) disposed on the base frame (1), a first slider plate (4) connected to the first drive member (2) and sliding on the guide rod assembly (3), a first lower support plate (5) connected to the first slider plate (4), and an upper clamping assembly for clamping the shock absorber spring from the upper part of the shock absorber spring. The first lower support plate (5) is provided with a notch (501) corresponding to the shock absorber cylinder. The first lower support plate (5) forms a first shoulder (51) and a second shoulder (52) on both sides of the notch (501). The horizontal height of the first lower support plate (5) spirals down from the first shoulder (51) to the second shoulder (52). The area of ​​the notch (501) is A, and the upper surface area of ​​the first lower support plate (5) is B, where A≤0.6B.

2. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 1, characterized in that, The first slider plate (4) has a first inner hole (41) on one side, and the first lower support plate (5) is connected to a first hole rod (53) corresponding to the first inner hole (41). The first lower support plate (5) is rotatably connected to the first slider plate (4) through the first hole rod (53).

3. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 1, characterized in that, The first lower support plate (5) is movably connected to a first hook (55) for hooking onto the shock absorber spring.

4. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 3, characterized in that, The guide rod assembly (3) includes two or more guide rods (31). The upper clamping assembly includes a second drive member (61) and a first working member connected to the second drive member (61). The first working member includes a sliding sleeve (62) sleeved on the guide rod (31), a first cantilever (63) connected to the sliding sleeve (62), and a second hook (7) connected to the first cantilever (63). The second hook (7) is used to hook onto the shock absorber spring.

5. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 4, characterized in that, The top of the guide rod assembly (3) is connected to an upper top plate (32). The second driving component (61) includes a second slider plate (611) that slides on the guide rod assembly (3), a second lead screw (612) that is movably connected to the second slider plate (611), and a first handwheel (613) that is connected to the second lead screw (612). The second lead screw (612) passes through the upper top plate (32) and is threadedly connected to the upper top plate (32). The outer wall of the sliding sleeve (62) is provided with a first external thread (621) and a second external thread (622). The first cantilever (63) is movably connected to the sliding sleeve (62) through the second external thread (622). The sliding sleeve (62) is movably connected to the second slider plate (611).

6. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 5, characterized in that, The second hook (7) includes a hook portion (71) and an extension post (72) connected to the hook portion (71). The first cantilever (63) is provided with a first through groove (631). A first displacement block (65) is provided in the first through groove (631). A first through hole (651) corresponding to the extension post (72) is provided on the first displacement block (65). A first locking screw (634) for restricting the movement of the extension post (72) is threaded on the first displacement block (65). A second through groove (633) communicating with the first through groove (631) is provided on the first cantilever (63). The first locking screw (634) passes through the second through groove (633). A first locking nut (635) is connected to the first locking screw (634).

7. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 5, characterized in that, The upper clamping assembly also includes a second working component, which includes a second cantilever (66) and a third suspension block (67) movably connected to the second drive component (61). The second cantilever (66) and the third suspension block (67) are each provided with a third hook (78). The second cantilever (66) is sleeved on the guide rod (31).

8. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 7, characterized in that, The second working component includes two second cantilever arms (66). A second slide (614) is sleeved on the guide rod (31). The second slide (614) is movably connected to the second driving component (61) through a seventh screw (615). When the seventh screw (615) rotates, it drives the second slide (614) to move up and down along the guide rod (31). When the second slide (614) moves up and down, it drives the second cantilever arms (66) to move up and down. The third suspension block (67) is movably connected to the second slider plate (611) through an eighth screw (616). When the eighth screw (616) rotates, it drives the third suspension block (67) to move up and down.

9. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 1, characterized in that, The first driving component (2) is a cylinder, a hydraulic cylinder or an electric cylinder. The first driving component (2) includes a piston rod (21). The bottom frame (1) includes a frame top plate (11). The piston rod (21) passes through the frame top plate (11). The first slider plate (4) is connected to the top of the piston rod (21).

10. The shock absorber spring disassembly and assembly device applicable to various specifications according to claim 1, characterized in that, The first slider plate (4) is detachably connected to a second lower support plate (56), the second lower support plate (56) is mirror symmetrical to the first lower support plate (5), the first slider plate (4) is also connected to a first clamping assembly (81) for clamping the shock absorber cylinder, and the bottom frame (1) is connected to a support plate (82) for supporting the shock absorber cylinder from below.

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