A Design Method of Connecting Rod Small End Bushing Installation Tool
A connecting rod small end and design method technology, applied in the direction of manufacturing tools, hand-held tools, etc., can solve the problems of inaccurate axial positioning of bushings, failure to meet placement requirements, and affect assembly efficiency, so as to save hoisting operations, Lightweight, cost- and time-saving effects
Active Publication Date: 2015-10-21
中国船舶集团有限公司第七一一研究所
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Problems solved by technology
[0007] The problems of this method are: (1) the axial positioning of the bushing is inaccurate and the positioning accuracy is low; (2) the hoisting, padding and other operations of the connecting rod parts are required, and the process is complicated and time-consuming. For large connecting rods , ordinary workbenches cannot meet the placement requirements
[0010] The problems of this method are: (1) The tool is repeatedly disassembled and cooled, and the operation is cumbersome and the cooling time is long; (2) When installing multiple connecting rod parts, if the number of tools is small, the tool needs to be cooled repeatedly, which will affect the assembly efficiency
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Embodiment Construction
[0042] The design idea of the installation tool of the present invention is to utilize the characteristics of the difference in thickness between the narrow side and the wide side of the small end of the connecting rod, and consider using a small splint with a simple structure and convenient processing and manufacturing as a tool for installing and positioning the bushing, mainly based on three aspects:
[0043] 1. Use two splints to fix the small end of the connecting rod by fastening, so that the small end of the connecting rod is fixed and kept between the two splints;
[0044] 2. Use one of the two splints to limit or position the bushing installed in the seat hole;
[0045] 3. When the distance between a pair of first end faces is greater than the distance between a pair of second end faces, and the small end of the connecting rod is fixedly held between the two splints, the installation tool does not intersect the plane where the first end faces are located.
[0046] S...
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The invention discloses a design method of a mounting tool for a lining at the small end of a connecting rod. The design method is mainly used for the small end of the connecting rod, wherein the small end of the connecting rod is of a stepped structure. According to the design concept, the small end of the connecting rod is fixedly clamped through two small clamping plates, and the lining in a hole base is positioned or limited through one clamping plate. The mounting tool based on the design method has the advantages of being high in mounting environment adaptability, simple and convenient to operate, accurate in axial positioning, efficient in use and the like.
Description
technical field [0001] The invention relates to a connecting rod assembly tool for a diesel engine, in particular to a design method for a connecting rod bushing installation tool with a stepped structure installed by a cooling method. Background technique [0002] The connecting rod is one of the main transmission parts of the diesel engine. In the diesel engine, it transmits the expansion pressure acting on the top surface of the piston to the crankshaft, and is driven by the crankshaft to drive the piston to compress the gas in the cylinder. The small end (small end) of the connecting rod is connected to the piston through the piston pin, and a metal bushing is assembled (pressed) in the small end seat hole to reduce the wear of the piston or piston pin on the small end seat hole, and at the same time, after the bush is worn It is also easier to repair and replace. [0003] The bushing and the small end seat hole are interference fit. The general installation method is t...
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IPC IPC(8): B25B27/02
CPCB25B27/02
Inventor 贺晓亮巫立民梁刚王宇业徐聪聪李淑静杨志祥
Owner 中国船舶集团有限公司第七一一研究所