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Engine bearing bush mounting and dismounting tool

An engine shaft and disassembly tooling technology, applied in metal processing, manufacturing tools, metal processing equipment and other directions, can solve the problems of difficult to guarantee assembly accuracy, high manufacturing cost, complex bearing bush structure, etc., and achieve low manufacturing cost, simple structure, and assembly. The effect of easy to ensure accuracy

Active Publication Date: 2021-06-18
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing bearing bush installation and disassembly tooling structure is relatively complicated, the manufacturing cost is high, and the assembly accuracy is difficult to guarantee

Method used

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  • Engine bearing bush mounting and dismounting tool
  • Engine bearing bush mounting and dismounting tool
  • Engine bearing bush mounting and dismounting tool

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Embodiment Construction

[0040] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection;...

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Abstract

The invention discloses an engine bearing bush mounting and dismounting tool, and belongs to the field of engine assembly. The engine bearing bush mounting and dismounting tool comprises a tool body. The two ends of the tool body are a dismounting end and a mounting end respectively, and the mounting end sequentially comprises a guide journal and a bearing bush matching journal in the direction away from the dismounting end. The diameter of the guide journal is larger than that of the bearing bush matching journal, the bearing bush matching journal is used for sleeving two half bushes of a bearing bush, and a step surface between the guide journal and the bearing bush matching journal is a bearing bush thrust surface. A guide ring can be hooped on the peripheries of the two half bushes and can provide radial limiting for the bearing bush in the mounting process, so that the two half bushes are prevented from radial deformation or radial displacement. In addition, the guide ring can axially move along the guide journal in the press-fitting process so as to play an axial limiting role in mounting of the bearing bush and determine the press-in amount of the bearing bush pressed into a bearing seat. The engine bearing bush mounting and dismounting tool is simple in structure and low in manufacturing cost, and the assembly precision is easy to guarantee.

Description

technical field [0001] The invention relates to the technical field of engine assembly, in particular to a tool for installing and disassembling engine bearing bushes. Background technique [0002] In modern high-speed multi-cylinder engines, most of the connecting rod big end and the main bearing seat hole are split structures, that is, the bearing cap can be disassembled. This structure does not require tooling when installing the bearing bush, and the bearing cap can be directly tightened with bolts. However, in special-purpose engines such as single-cylinder testing machines, the main bearing hole or other bearing holes are integrated without a main bearing cap, and the bearing bush is not a circular bush, but is divided into two and a half bushes. When installing the bearing pad, it is necessary to cool the bearing pad or use tooling to press the bearing pad into the bearing hole. The specific process selection should be determined according to the material of the beari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/02
CPCB23P19/02
Inventor 董效彬张春丰冒维健郑冰樊嘉天耿文娟鱼春燕
Owner FAW JIEFANG AUTOMOTIVE CO
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