Bushing disassembly tool

Abstract

The present invention discloses a bushing disassembly and assembly tool, comprising a push-pull power part arranged on one side of the bushing, a screw rod used to sequentially penetrate the bushing and the push-pull power part, and the push-pull power part drives the screw rod to realize the disassembly or assembly of the bushing in the cross arm. The bushing disassembly and assembly tool has the characteristics of simple structure, easy to carry, convenient to use and wide application range.

Description

Technical Field

[0001] The invention relates to the technical field of assembly and separation of automobile parts, in particular to a bushing disassembly and assembly tool. Background Art

[0002] When disassembling and assembling a vehicle's independent suspension system, the repair and disassembly of the wishbone bushing has always been a difficult problem, requiring the use of a special gantry and special bushing disassembly tools. Although the jack can remove some bushings, when the rubber layer of the bushing is damaged, it is difficult to remove it due to uneven force application.

[0003] When disassembling, fix the cross arm on the disassembly centering column on the gantry, the centering column is against the bottom of the bushing, and fixed with the bushing disassembly tool. A jack with a mass of 8 tons is installed on the upper end of the gantry, and the top of the jack is a through-column. When using the jack, the top is against the outer ring of the bushing but does not touch it (that is, the top of the jack is against the cross arm). When using the jack, the bushing is pushed out, the cross arm is removed, and the bushing is taken out from the through-column at the top of the jack. Follow the above steps to take out the bushing at the other end. When installing, first place the bushing on the installation centering column of the gantry, align the three arms with the bushing and fix them, use the jack to slowly press it in, and use the same method to install the bushing on the other side. The following defects exist: the disassembly and assembly volume is large and cannot be carried; due to the narrow space between the cross arms, when the rubber layer of the bushing is damaged, a jack of sufficient tonnage cannot be placed in it; a special bushing disassembly and assembly tool can only disassemble and assemble specific or similar bushings, and its use has limitations; although the existing bushing disassembly and assembly tools are integrated on the gantry for assembly and disassembly, they are still inconvenient to use.

[0004] Therefore, how to provide a bushing disassembly and assembly tool that is simple in structure, easy to carry, convenient to use, and has a wide range of applications is a concern in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a bushing disassembling and assembling tool, which has the characteristics of simple structure, easy to carry, convenient to use and wide application range.

[0006] To achieve the above-mentioned purpose, the present invention provides a bushing disassembly and assembly tool, including a push-pull power unit arranged on one side of the bushing, a screw rod being used to sequentially penetrate the bushing and the push-pull power unit, and the push-pull power unit driving the screw rod to realize the disassembly or assembly of the bushing in the cross arm.

[0007] Preferably, it includes a third tooling piece arranged on the other side of the bushing, one end of the screw rod passes through the third tooling piece and is connected to the second nut, and the outer diameter of the third tooling piece is used to be less than or equal to the outer diameter of the bushing, so that when the screw rod is pulled, the third tooling piece can be pulled out of the bushing for disassembly.

[0008] Preferably, the outer diameter of the third tooling piece is equal to the outer diameter of the bushing, and the third tooling piece is used to contact and completely abut against the metal layer of the bushing.

[0009] Preferably, it comprises a second tooling piece arranged on one side of the bushing, the screw rod is used to sequentially penetrate the bushing, the second tooling piece and the push-pull power part, and the interior of the second tooling piece is provided with a cavity for accommodating the disassembled bushing.

[0010] Preferably, the second tooling piece is embedded and fixed to the push-pull power unit.

[0011] Preferably, it includes a fourth tooling piece arranged on one side of the bushing, the screw rod is used to sequentially pass through the bushing, the fourth tooling piece and the push-pull power unit, and the outer diameter of the fourth tooling piece is used to be larger than the outer diameter of the bushing, so that when the screw rod is pushed, the fourth tooling piece is pushed into the bushing for assembly.

[0012] Preferably, a fifth tooling piece is included for being arranged on the other side of the bushing, one end of the screw rod passes through the fifth tooling piece and is connected to the third nut, and a cavity is provided inside the fifth tooling piece for accommodating the remaining space of the assembled bushing.

[0013] Preferably, it comprises a first tooling piece arranged on one side of the bushing, the screw rod is used to sequentially penetrate the bushing, the push-pull power unit and the first tooling piece, and the other end of the screw rod passes through the first tooling piece and is connected to the first nut.

[0014] Preferably, the first tooling piece is embedded and fixed to the push-pull power unit.

[0015] Preferably, the push-pull power unit is specifically a hollow jack.

[0016] Compared with the above-mentioned background technology, the bushing disassembly and assembly tool provided by the present invention includes a push-pull power unit and a screw rod. The push-pull power unit is arranged on one side of the bushing. The screw rod passes through the bushing and the push-pull power unit in sequence. The power of the push-pull power unit is to provide power. The screw rod is driven by the push-pull power unit, so that the screw rod drives the connected bushing to realize the disassembly from the cross arm or the assembly into the cross arm, thereby realizing the portability of the tool and the integrated assembly and disassembly, which can protect the bushing from damage. It has the characteristics of simple structure, easy to carry, convenient to use and wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of the bushing disassembly and assembly tool provided by an embodiment of the present invention when disassembling;

[0019] Figure 2 A schematic diagram of the structure of the bushing disassembly and assembly tool provided in an embodiment of the present invention during assembly.

[0020] in:

[0021] 1-cross arm, 2-bushing, 3-hollow jack, 4-screw, 5-first tooling piece, 6-first nut, 7-second tooling piece, 8-third tooling piece, 9-second nut, 10-fourth tooling piece, 11-fifth tooling piece, 12-third nut. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Please refer to Figure 1 and Figure 2 ,in, Figure 1 A schematic diagram of the structure of the bushing disassembly and assembly tool provided in an embodiment of the present invention when disassembling. Figure 2 A schematic diagram of the structure of the bushing disassembly and assembly tool provided in an embodiment of the present invention during assembly.

[0025] In the prior art, the maintenance of the cross arm 1 is commonly known as the triangular arm. The cross arm 1 is a scientific name and is divided into an upper cross arm and a lower cross arm.

[0026] In the first specific embodiment, the bushing disassembly and assembly tool provided by the present invention includes a push-pull power unit and a screw 4. The push-pull power unit is arranged on one side of the bushing 2. The screw 4 passes through the bushing 2 and the push-pull power unit in sequence. The screw 4 is fixedly connected to the bushing 2 and the push-pull power unit. The function of the push-pull power unit is to provide power for driving the screw 4. The power forms include pulling force and thrust.

[0027] During the use of the bushing disassembly and assembly tool, the push-pull power unit drives the screw 4, causing the screw 4 to move axially, and the screw 4 then drives the bushing 2 in the cross arm 1 to move, causing the bushing 2 to move relative to the cross arm 1. Depending on the power form, that is, depending on the pulling force or thrust provided by the push-pull power unit, the bushing 2 can be disassembled from the cross arm 1 or assembled into the cross arm 1.

[0028] In this embodiment, the push-pull power unit is a small device with sufficient pulling force and pushing force; illustratively, the push-pull power unit is specifically a hollow jack 3.

[0029] Among them, it includes a first tooling piece 5 arranged on one side of the bushing 2, and the first tooling piece 5 is located outside the push-pull power part, that is, the hollow jack 3. At this time, the screw rod 4 passes through the bushing 2, the push-pull power part and the first tooling piece 5 in sequence, and the other end of the screw rod 4 passes through the first tooling piece 5 and is connected to the first nut 6. The first tooling piece 5 plays a role in fixing the screw rod 4, ensuring the axial movement of the screw rod 4 while preventing the screw rod 4 from moving around.

[0030] In order to achieve better technical effects, the first tooling piece 5 is embedded at one end close to the hollow jack 3, so that the first tooling piece 5 is embedded and fixed to the push-pull power part, further enhancing the fixing effect of the first tooling piece 5 and thereby improving the anti-slip effect of the screw 4.

[0031] It should be noted that the bushing disassembly and assembly tool in this embodiment can not only realize the disassembly of the bushing 2, but also realize the assembly of the bushing 2. By using specially processed tooling parts, the tool is made portable and the assembly and disassembly are integrated.

[0032] Specifically, in an embodiment of a bushing disassembly and assembly tool for disassembly, it includes a third tooling piece 8 arranged on the other side of the bushing 2. In layman's terms, the hollow jack 3 is located on the right side or outside of the bushing 2 away from the cross arm 1, and the third tooling piece 8 is located on the left side or inside of the bushing 2 close to the cross arm 1. One end of the screw rod 4 passes through the third tooling piece 8 and is connected to the second nut 9. The outer diameter of the third tooling piece 8 is less than or equal to the outer diameter of the bushing 2. The function of the third tooling piece 8 is to apply force to the bushing 2 so that when the screw rod 4 is pulled, the third tooling piece 8 pulls out the bushing 2 for disassembly.

[0033] In this embodiment, the inner and outer layers of the bushing 2 are metal, and the middle layer is rubber. Exemplarily, the outer diameter of the third tooling piece 8 is equal to the outer diameter of the bushing 2, and the third tooling piece 8 contacts and completely presses against the metal layer of the bushing 2. When in use, the screw 4 and the third tooling piece 8 apply force together to pull out the bushing 2. The bushing 2 passes through the cross arm 1, and the third tooling piece 8 will also pass through the cross arm 1. Therefore, the outer diameter of the third tooling piece 8 should be consistent with the outer diameter of the bushing 2, and the contact surface of the third tooling piece 8 close to the bushing 2 should completely press against the metal layer of the bushing 2. The side of the third tooling piece 8 close to the second nut 9 should be flat, and the inner diameter of the second nut 9 should be consistent with or slightly larger than the diameter of the screw 4. The second nut 9 plays the role of tightening the third tooling piece 8. After tightening the second nut 9, the hollow jack 3 is operated to pull out the bushing 2.

[0034] For better technical effect, a second tooling piece 7 is provided on one side of the bushing 2. In layman's terms, the second tooling piece 7 is located between the bushing 2 and the hollow jack 3. The screw 4 passes through the bushing 2, the second tooling piece 7 and the push-pull power unit in sequence. The second tooling piece 7 is provided with a cavity for accommodating the split bushing 2. When in use, the second tooling piece 7 is fixed relative to the cross arm 1, and the screw 4 and the third tooling piece 8 apply force together to pull the bushing 2 out of the cross arm 1 to the right. The pulled-out bushing 2 enters the cavity inside the second tooling piece 7 to play a role of accommodation.

[0035] In order to achieve better technical effects, the second tooling piece 7 is embedded and fixed in the push-pull power part, in the same fixing method as the first tooling piece 5 mentioned above. The second tooling piece 7 is made embedded on the side close to the hollow jack 3. The second tooling piece 7 is embedded in the hollow jack 3 to achieve centering fixation. The second tooling piece 7 then fixes the screw 4 so that the screw 4 does not swing up and down. The inner diameter of the second tooling piece 7 close to the bushing 2 should be larger than the outer diameter of the top end of the bushing 2. The inside of the second tooling piece 7 is made hollow, and the hollow length can accommodate a bushing 2, and the wall thickness is 6 mm.

[0036] In an embodiment of the bushing disassembly and assembly tool for assembly, a fourth tooling piece 10 is provided on one side of the bushing 2, the fourth tooling piece 10 is located between the bushing 2 and the hollow jack 3, and the screw rod 4 passes through the bushing 2, the fourth tooling piece 10 and the push-pull power part in sequence. The fourth tooling piece 10 plays a role in pushing the bushing 2, and the outer diameter of the fourth tooling piece 10 should be greater than the outer diameter of the installation surface of the bushing 2, that is, the outer diameter of the fourth tooling piece 10 is greater than the outer diameter of the bushing 2, so that when the screw rod 4 is pushed, the fourth tooling piece 10 is pushed into the bushing 2 for assembly.

[0037] In addition, the fifth tooling piece 11 is provided on the other side of the bushing 2. One end of the screw rod 4 passes through the fifth tooling piece 11 and is connected to the third nut 12. The fifth tooling piece 11 has a cavity inside to accommodate the remaining amount of the assembled bushing 2. The fifth tooling piece 11 plays a role in fixing the screw rod 4 and limiting the upward and downward movement of the screw rod 4. The fifth tooling piece 11 has a smaller cavity on the side close to the bushing 2, and the inner diameter should be the same as the inner diameter of the bushing 2 to prevent the bushing 2 from interfering with the remaining amount on the left side when the right side is assembled in place.

[0038] In this embodiment, after the first nut 6 is installed on the other end of the screw rod 4, it passes through the first tooling piece 5, the hollow jack 3, the fourth tooling piece 10, the uninstalled bushing 2 and the fifth tooling piece 11 in sequence, and is fastened with the third nut 12. When in use, the hollow jack 3 is operated, the hollow jack 3 outputs thrust, the screw rod 4 pushes, and the bushing 2 will be slowly pressed into the cross arm 1, which can protect the bushing 2 from damage when installing the bushing 2.

[0039] Compared with the existing technical solutions, the bushing disassembly and assembly tool is small in size, light in weight, and easy to carry. It is suitable for a cross arm 1 in a small space where a jack of sufficient tonnage cannot be accommodated. It can disassemble a bushing 2 with a severely damaged rubber layer. Only a small number of tooling parts need to be replaced to be suitable for disassembly and assembly of a new bushing 2, which saves costs and has good compatibility. The disassembly and installation speed is faster, and the bushing 2 can be protected from damage during installation.

[0040] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0041] The above is a detailed introduction to the bushing disassembly and assembly tool provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A bushing disassembly and assembly tool, characterized in that: A bushing for disassembling and assembling a cross arm of an independent suspension system of a vehicle, the bushing disassembling and assembling tool comprising a push-pull power unit arranged on one side of the bushing (2), a screw rod (4) being used to sequentially penetrate the bushing (2) and the push-pull power unit, the push-pull power unit driving the screw rod (4) to realize the disassembly or assembly of the bushing (2) in the cross arm (1); the push-pull power unit is specifically a hollow jack (3); the bushing disassembling and assembling tool comprises a first tooling piece (5) arranged on one side of the bushing (2), the screw rod (4) being used to sequentially penetrate the bushing (2), the push-pull power unit and the first tooling piece (5), the other end of the screw rod (4) passing through the first tooling piece (5) and being connected to a first nut (6); the first tooling piece (5) is embedded and fixed to the push-pull power unit; In the scheme of realizing the disassembly of the bushing (2) by the bushing disassembly tool, the bushing disassembly tool comprises a third tooling piece (8) arranged on the other side of the bushing (2), one end of the screw rod (4) passes through the third tooling piece (8) and is connected to the second nut (9), and the outer diameter of the third tooling piece (8) is smaller than or equal to the outer diameter of the bushing (2), so that when the screw rod (4) is pulled, the third tooling piece (8) pulls out the bushing (2) for disassembly; In the scheme of the bushing disassembly and assembly tool for assembling the bushing (2), the bushing disassembly and assembly tool includes a fourth tooling piece (10) for being arranged on one side of the bushing (2), the screw rod (4) is used to sequentially penetrate the bushing (2), the fourth tooling piece (10) and the push-pull power unit, and the outer diameter of the fourth tooling piece (10) is used to be larger than the outer diameter of the bushing (2) so that when the screw rod (4) is pushed, the fourth tooling piece (10) is pushed into the bushing (2) for assembly; the bushing disassembly and assembly tool includes a fifth tooling piece (11) for being arranged on the other side of the bushing (2), one end of the screw rod (4) penetrates the fifth tooling piece (11) and is connected to the third nut (12), and the interior of the fifth tooling piece (11) is provided with a cavity for accommodating the excess of the assembled bushing (2).

2. The bushing disassembly and assembly tool according to claim 1, characterized in that: The outer diameter of the third tooling piece (8) is equal to the outer diameter of the bushing (2), and the third tooling piece (8) is used to contact and completely abut the metal layer of the bushing (2).

3. The bushing disassembly and assembly tool according to claim 1, characterized in that: It comprises a second tooling piece (7) for being arranged on one side of the bushing (2); the screw rod (4) is used to sequentially penetrate the bushing (2), the second tooling piece (7) and the push-pull power unit; the second tooling piece (7) is provided with a cavity inside for accommodating the disassembled bushing (2).

4. The bushing disassembly and assembly tool according to claim 3, characterized in that: The second tooling piece (7) is embedded and fixed in the push-pull power unit.

Images