Crank pulley assembly method and guiding tool

A crankshaft pulley and assembly method technology, applied in metal processing, manufacturing tools, metal processing equipment, etc., can solve the problems of increased strength and difficulty of the crankshaft, increased assembly of the crankshaft pulley, position deviation between the crankshaft pulley and the small end of the crankshaft, etc. Achieve the effect of overcoming the change of mutual angle, ensuring assembly accuracy and improving production efficiency

Active Publication Date: 2009-06-17
GUANGXI YUCHAI MASCH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

In this way, the difficulty of assembling the crankshaft pulley is increased. During assembly, it is difficult to determine the relative angle between the crankshaft pulley and the small end of the crankshaft. Due to the increased interference between the crankshaft pulley and the small end of the crankshaft, th...

Method used

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  • Crank pulley assembly method and guiding tool
  • Crank pulley assembly method and guiding tool

Examples

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Embodiment Construction

[0014] The assembly method of the crankshaft pulley and the guide tooling of the present invention can realize the press-fitting of the crankshaft belt with an interference fit, determine the relative position between the crankshaft pulley and the crankshaft, and keep the mutual angle between the crankshaft pulley and the crankshaft constant during the press-fitting process. Change, to ensure the stability of quality.

[0015] The crankshaft pulley assembly guide tooling is designed according to the small end of the crankshaft and the pulley of the crankshaft, that is, according to the structural size of the small end of the crankshaft, the size of the positioning groove of the small end of the crankshaft, the structural size of the pulley, the size of the positioning groove of the pulley, and the assembly requirements of the pulley. The belt pulley assembly guide tooling is divided into two main parts, the inner sleeve and the outer sleeve. The inner sleeve and the outer sleev...

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Abstract

The invention relates to an assembly method for a crankshaft pulley and a guide tool of the method. The crankshaft pulley is arranged on a crankshaft through interference fit. A small end of the crankshaft and the crankshaft pulley are provided with positioning grooves respectively. A pulley assembly guide tool is arranged on the crankshaft pulley. The crankshaft wheel and the pulley assembly guide tool are arranged on the small end of the crankshaft together and are pressed. The pulley assembly guide tool comprises an internal circular sleeve and an external circular sleeve, wherein an axial long slide way is arranged between the internal circular sleeve and the external circular sleeve. The internal circular sleeve is provided with a positioning key which is matched with the positioning groove of the small end of the crankshaft. The external circular sleeve is provided with a positioning key which is matched with the positioning groove of the crankshaft pulley. The method and the guide tool of the method are used for assembling crankshaft pulleys of diesel engines, solves the problem of difficult alignment of positioning groove of the crankshaft pulley and the positioning groove of the small end of the crankshaft, avoids phase angle change of the crankshaft pulley relative to the small end of the crankshaft during the pressing process of the crankshaft pulley and ensures the assembly accuracy of the crankshaft pulley and the stability of the assembly quality.

Description

technical field [0001] The invention relates to an assembly method of a crankshaft pulley and a guide tool used in the assembly method, in particular to a crankshaft and a pulley with a keyless connection, and an interference amount is used between the crankshaft small end and the crankshaft pulley to transmit torque to the crankshaft pulley The assembly method and the guide tooling used. Background technique [0002] Usually, the assembly requirement between the small crankshaft end of a diesel engine and the crankshaft pulley is a transition fit, relying on the keyway on the crankshaft small end and the keyway on the crankshaft pulley to transmit torque through the key. The disadvantage of this structure is that processing a keyway on the relatively small crankshaft head will cause serious damage to the strength of the crankshaft head, so that the crankshaft head often breaks. [0003] The method to solve the above problems is to adopt the structure of interference fit be...

Claims

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Application Information

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IPC IPC(8): B23P11/02B23P19/02
Inventor 何江华朱岩农永新黎祖赵刘时国韩光
Owner GUANGXI YUCHAI MASCH CO LTD
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