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The determination method of planetary gear system and its structural parameters

A technology for planetary gears and determination methods, applied in belts/chains/gears, electrical digital data processing, special data processing applications, etc., can solve problems such as expensive wear-resistant materials or oil-absorbing materials, poor environmental protection, and environmental pollution, and achieve Increased service life, low cost, and reduced wear

Active Publication Date: 2018-08-14
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wear-resistant materials or oil-absorbing materials used in the above methods are not only expensive but also pollute the environment. Therefore, there are problems of high cost and poor environmental protection

Method used

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  • The determination method of planetary gear system and its structural parameters
  • The determination method of planetary gear system and its structural parameters
  • The determination method of planetary gear system and its structural parameters

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Embodiment Construction

[0039] In order to solve the above-mentioned problems in the prior art, the technical solution adopted in the embodiment of the present invention is to set the shaft hole of the planetary gear and the part of the outer surface of the planetary gear shaft that can be in contact with the inner wall of the shaft hole in an arc shape. , can effectively reduce the friction between the planetary gear and the planetary gear shaft, improve the service life of the planetary gear system, low cost, environmentally friendly and durable.

[0040] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] figure 1 A schematic structural diagram of a planetary gear system in an embodiment of the present invention is shown. Such as figure 1 The planetary gear system shown can include:

[0042] The planetary g...

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Abstract

The invention discloses a planet gear system and a method for determining the structure parameter of the planet gear system. The planet gear system comprises a planet gear and a planet gear shaft, wherein a shaft hole is formed in the planet gear; the planet gear movably sleeves the planet gear shaft through the shaft hole; two ends of the planet gear shaft are mounted on one casing; both the inner wall of the shaft hole of the planet gear and the part on the outer surface of the planet gear shaft and in contact with the inner wall of the shaft hole are in the shape of a raised arc; the radius of the cross section of the shaft hole is increased progressively along the central axis of the shaft hole from the middle point to the two sides; the radius of the cross section of the part on the outer surface of the planet gear shaft and in contact with the inner wall of the shaft hole is decreased progressively along the central axis of the contact part from the middle point to the two sides. Through the scheme, the mesh unbalance loading of the planet gear and the eccentric wear of the planet gear and the planet gear shaft can be effectively avoided, the service lives of the planet gear and the planet gear shaft can be prolonged, the cost is low, and the planet gear system is environment-friendly and durable.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a planetary gear system and a method for determining its structural parameters. Background technique [0002] The basic function of the car transmission system is to transmit the power generated by the car engine to the wheels. Planetary gears and planetary gear shafts are important components in automotive drive trains. [0003] At present, the planetary gear system is an important part of the transmission system of an automobile, wherein the planetary gear used is sleeved on the planetary gear shaft through the shaft hole. Wherein, the planetary gear shaft is a standard cylindrical shape, and the shaft hole of the planetary gear is also a standard cylindrical shape, and the two ends of the planetary gear shaft are installed on a housing. When loaded, the planet gears, planet gear shafts and housing deform accordingly. Over time, the planetary gears, planetar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50F16H57/08
Inventor 方伟荣王修坤刘飞涛袁海峰乐胜年
Owner SAIC MOTOR
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