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Disassembly-assembly tool of connecting rod bushing and disassembly-assembly craft thereof

A connecting rod bushing and connecting rod technology, which is applied in the field of disassembly tool and disassembly process of connecting rod bushing, can solve the problems of irregular appearance, large difference in expansion coefficient, large diameter, etc., and achieve cost saving Effect

Active Publication Date: 2015-04-29
湖南省力宇燃气动力有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the connecting rod is not placed and fixed smoothly, it is easy to cause deformation of the connecting rod and damage the inner hole of the small end of the connecting rod under the impact of gravity
In addition, because the wall of the connecting rod bushing is thin, the outer surface of the connecting rod bushing and the inner hole of the small end of the connecting rod are fitted by interference, and the amount of interference is large, and the connecting rod and the connecting rod bushing The material of the connecting rod is different, so that the expansion coefficient of the two is quite different. After the connecting rod and the connecting rod bushing are repeatedly heated and cooled in use, the deformation of the two is also different. Therefore, it is difficult to use ordinary tools to displace the connecting rod Remove the bushing from the small end bore of the connecting rod or fit a new connecting rod bushing
For the connecting rod bushing of some large engines, its diameter is generally larger and its shape is often irregular, so it is more difficult to remove the connecting rod bushing from the inner hole of the small end of the connecting rod or install a new bushing

Method used

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  • Disassembly-assembly tool of connecting rod bushing and disassembly-assembly craft thereof
  • Disassembly-assembly tool of connecting rod bushing and disassembly-assembly craft thereof
  • Disassembly-assembly tool of connecting rod bushing and disassembly-assembly craft thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] See Figure 1 to Figure 6. A dismounting tool for a connecting rod bushing in this embodiment includes a dismounting tool main body 101 and a connecting rod support frame 102. The dismounting tool main body 101 and the connecting rod supporting frame 102 are independent of each other. When the tool is disassembling the connecting rod bushing 34, the connecting rod small end 32 is connected to the dismounting tool main body 101, and the connecting rod large end 33 is connected to the connecting rod support frame 102. The bushing 34 mainly plays the role of supporting the big end 33 of the connecting rod, so that the whole connecting rod 201 is in a balanced state.

[0053] In this embodiment, the inner diameter of the connecting rod bushing 34 is φ85 mm, the outer diameter of the connecting rod bushing 34 is φ95 mm, the inner hole size of the small end 32 of the connecting rod is φ95 mm, the interference between the inner hole of the small end 32 of the connectin...

Embodiment 2

[0065] See Figure 1 to Figure 8 . A disassembly and assembly process of a disassembly and assembly tool for a connecting rod bushing of the present embodiment comprises the following steps:

[0066] The first step, installation steps:

[0067] a. Place the support base 1 on a flat workbench or ground;

[0068] b. Put the connecting rod small end 32 with the bushing 34 of the connecting rod 201 on the edge of the base hole 8 of the support base 1, and the connecting rod big end 33 of the connecting rod 201 on the connecting rod support plate 102;

[0069] c. Put the small end 11 of the pressure head 2 into the connecting rod bushing 34, so that the force-bearing surface is in good contact;

[0070] d. Fix two fixing screws 5 on the supporting base 1;

[0071] e. Set the first supporting platen 3 on the two fixing screws 5 through the round holes at both ends, and place the first supporting platen 3 on the pressure head 2;

[0072] f. Put the hydraulic jack 4 on the first ...

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Abstract

The invention relates to the technical field of bushing disassembly and assembly, in particular to a disassembly-assembly tool of a connecting rod bushing and a disassembly-assembly craft thereof. The disassembly-assembly tool of the connecting rod bushing comprises a disassembly-assembly tool body and a connecting rod support plate, wherein the disassembly-assembly tool body comprises a support base, a pressure head, a first support pressure plate, an oil pressure lifting jack, fixing screws and a second support pressure plate. The two fixing screws are respectively fixed at the two ends of the support base. The first support pressure plate and the second support pressure plate are arranged on the fixing screws in a sleeve mode. The oil pressure lifting jack is placed on the first support pressure plate. The disassembly-assembly craft of the disassembly-assembly tool of the connecting rod bushing comprises installation steps, disassembly steps of damaged bushing and installation of a new connecting rod bushing. The disassembly-assembly tool of the connecting rod bushing and the disassembly-assembly craft thereof can disassemble a connecting rod bushing and assemble a new connecting rod bushing from an inner hole of the little end of the connecting rod easily. During the disassembly and assembly of the connecting rod bushing, the connecting rod can be well protected from damaging. The connecting rod can be used repeatedly, so that cost is saved. Labor is saved and operation is easy during the disassembly and assembly of the connecting rod bushing.

Description

technical field [0001] The invention relates to the technical field of bush disassembly and assembly, in particular to a disassembly tool for a connecting rod bush and a disassembly process thereof. Background technique [0002] The connecting rod and connecting rod bushing are the most important parts in the engine. The surface of the inner hole of the connecting rod bushing is a layer of soft metal material. The connecting rod bushing is easy to wear during work, and the worn connecting rod bushing needs to be disassembled , and a new connecting rod bushing needs to be installed. In the prior art, when disassembling the connecting rod bushing, generally one end of the connecting rod is placed in the air, and the bushing is disassembled by a knocking method. Since the connecting rod is not stably placed and fixed, it is easy to cause deformation of the connecting rod and damage the inner hole of the small end of the connecting rod under the knocking of gravity. In additio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B27/06
Inventor 谢勇儒刘建旷海中
Owner 湖南省力宇燃气动力有限公司