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Composite structure of transmission shaft end cross coupling

A cross coupling and combined structure technology, applied in couplings, elastic couplings, mechanical equipment, etc., can solve problems such as large vibration and affecting vehicle comfort.

Active Publication Date: 2011-03-23
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission shaft of this combination structure often causes large vibrations during actual use, which affects the comfort of the vehicle and the service life of the components
But now there is no other simple device that can not change the angle between the two transmission shafts, and can avoid large vibrations at the same time

Method used

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  • Composite structure of transmission shaft end cross coupling
  • Composite structure of transmission shaft end cross coupling
  • Composite structure of transmission shaft end cross coupling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The inventor made use of the unequal speed characteristic of the output speed of the cross coupling, without changing the structure of the cross shaft universal joint coupling and without changing the angle between the transmission shafts, the cross at one shaft end of the transmission shaft The shaft type universal joint coupling remains different, changing the angle of the other cross shaft type universal joint coupling of the drive shaft, that is, changing the phase angle θ between the cross shaft type universal joint couplings at both ends of the drive shaft (Such as image 3 , 4 As shown), it is found that when the phase angle θ between the cross shaft universal joint couplings at both ends of the transmission shaft is between 0°<θ≤15° and 25°≤θ<90°, the working vibration amplitude of the transmission shaft decreases Maximum, the vibration reduction reaches more than three-quarters of the original scheme.

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Abstract

The invention discloses a combined structure of a transmission shaft end crossed shaft coupling. The combined structure comprises a transmission shaft, wherein both ends of the transmission shaft are connected with crossed shaft type universal joint shaft couplings; and the phase angle theta between the crossed shaft type universal joint shaft couplings is more than 0 degree and less than 90 degrees. The combined structure breaks through the connection mode of the prior crossed shaft type universal joint shaft coupling and solves the vibration problem of the transmission shaft; meanwhile, thecombined structure does not change the included angle between transmission shafts and the operating rotating speed of the transmission shafts, thereby reducing the operating vibration amplitude of the transmission shafts substantially; vibration reduction in the structure is more than three fourths of that of the prior proposal; moreover, the proposal is simple and easy to carry out and is suitable for the connection of a plurality of shafts.

Description

technical field [0001] The invention belongs to automobile parts, in particular to a new cross shaft universal joint combination structure which can effectively solve the running vibration of a transmission shaft. Background technique [0002] Because of its simple structure, reliable transmission, high efficiency, low cost, and allowing a large angle between the two transmission shafts, the cross shaft universal joint is widely used in the transmission system of various vehicles. However, due to the non-uniform velocity of the cross-shaft universal joint, that is, its output speed has the characteristics of periodic fluctuations, it is easy to cause vibration of the transmission shaft during work, and in severe cases, it will cause resonance of other parts of the vehicle. At present, the two major sources of vibration caused by the vehicle itself are the engine and the transmission shaft. The traditional cross-shaft universal joint couplings are installed and arranged in a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D3/26
Inventor 史建鹏黄松王峰
Owner DONGFENG MOTOR CORP HUBEI
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