Connector for transfer heavy load

A coupling device, heavy load technology, applied in the direction of coupling, key connection, connecting components, etc., can solve the problems of shortening the service life of the spline, increasing the pressing force, etc., achieving good reliability and eliminating gaps.

Inactive Publication Date: 2007-06-27
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Because the transmission precision of bevel gears is very high, the fit is required to be very tight. If ordinary splines are used for connection, interference fit must be used, which will increase the press-fitting force during assembly, and at the same time, the splines will be subject to compressive stress, shortening the use of splines. life

Method used

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  • Connector for transfer heavy load
  • Connector for transfer heavy load

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Embodiment Construction

[0009] The coupling device for transferring heavy loads of the present invention includes inner and outer splines 10, 20, one of which is a straight spline, and the other is a small-angle helical spline.

[0010] The internal spline 10 is a helical spline.

[0011] The helix angle of the spline is a function of the interference amount and the tooth width, that is to say, the helix angle can be determined according to the interference amount, and the calculation formula is as follows:

[0012] β = arctan X B

[0013] β: is the helix angle

[0014] X: To increase the amount of interference through the helix angle

[0015] When this method is used to connect, the spline fit mostly adopts clearance fit.

[0016] Large bevel gears are used in the transfer case and the rear axle of the car. The torque transmitted by the bevel gear to the shaft can be as high as 2000N*M. It must be connected by bolts or ...

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PUM

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Abstract

A coupler for transferring heavy load features use of internal and external splines. One of said two splines is a straight spline and another is a small-angle spiral spline. They have less interference fit between them for eliminating the gap between teeth.

Description

technical field [0001] The present invention relates to the improvement of the power transmission mechanism, in particular to the connection mode of the hole and the shaft suitable for the transmission of heavy loads. Background technique [0002] At present, the connection between the hole and the shaft used to transmit the load is connected by a straight spline. Whether the connection in this way is centered on the large diameter, centered on the small diameter or centered on the tooth side, the connection between the tooth sides There is a small gap between them. When this kind of connection is used to fix high-speed gears with large changes in transmission load, it will cause high gear noise and abnormal noise. If the interference fit of ordinary splines is used to eliminate the tooth side clearance, the press-fitting force will be too large to make the assembly difficult, and the contact surface of the splines will also be subject to a large normal pressure, which will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B3/00F16D1/06
Inventor 谢鹏董彬吴罡邓菊根
Owner CHERY AUTOMOBILE CO LTD
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