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Planetary speed reduction and gear shifting mechanism and automobile

A planetary deceleration and shifting mechanism technology, applied in the field of automobile transmission system, can solve the problems of the maximum speed limit of the input end of the gear train, the wear power of the planetary mechanism 2, and the loss, so as to improve the success rate of shifting, reduce the shifting force, Realize the effect of time difference

Active Publication Date: 2019-02-19
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even in the high-speed gear state, the entire planetary reduction mechanism does not realize the deceleration function, but the planetary gear train is always in operation. The high-speed operation of the gears will cause noise, wear and tear of the planetary mechanism 2 and power loss. severely restricted

Method used

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  • Planetary speed reduction and gear shifting mechanism and automobile
  • Planetary speed reduction and gear shifting mechanism and automobile
  • Planetary speed reduction and gear shifting mechanism and automobile

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0038] Such as figure 1 As shown, the present invention includes an input shaft 1 and an output shaft 11 arranged coaxially, the input shaft 1 supports the sun gear 3 of the planetary reduction mechanism, and a needle bearing 13 is arranged between the sun gear 3 and the input shaft 1; Wheel 3, planetary gear 4, ring gear 5, and planetary carrier 6 form a planetary reduction mechanism. Ring gear 5 is fixed on the housing, and it also includes a first sliding gear sleeve 7, which is used for input The shaft 1 meshes; the first sliding tooth sleeve 7 is also used to mesh or separate from the output shaft 11, or to mesh or separate from the sun gear 3;

[0039] The second sliding gear sleeve 10, the second sliding gear sleeve 10 is ...

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Abstract

The invention relates to a planetary speed reduction and gear shifting mechanism and an automobile and belongs to the technical field of automobile transmission systems. The planetary speed reductionand gear shifting mechanism comprises an input shaft and an output shaft, which are coaxially arranged, wherein the input shaft is used for supporting a sun gear of a planetary speed reduction mechanism; the planetary speed reduction and gear shifting mechanism further comprises a first sliding gear sleeve, a second sliding gear sleeve and a gear-shifting shifting fork mechanism; the first slidinggear sleeve is engaged with the input shaft; the first sliding gear sleeve is also engaged with or separated from the output shaft or is engaged with or separated from the sun gear; the second sliding gear sleeve is engaged with the output shaft; the second sliding gear sleeve is also engaged with or separated from a planetary carrier of the planetary speed reduction mechanism; the first slidinggear sleeve is connected with the second sliding gear sleeve; and the gear-shifting shifting fork mechanism is used for driving the second sliding gear sleeve. According to the planetary speed reduction and gear shifting mechanism, the input shaft and the sun gear adopt a splitting type design, so that the noise problem of a planetary gear train in an operation process under a high-gear working condition is extremely improved, the service life of the gear is prolonged and the highest input rotary speed index of the speed reduction mechanism is improved.

Description

technical field [0001] The invention relates to the technical field of automobile transmission systems, in particular to a planetary deceleration shift mechanism and an automobile. Background technique [0002] Planetary reduction mechanisms have been widely used in transmission systems in the automotive field, such as automatic transmissions, transfer cases, wheel reducers and other systems. [0003] The planetary reduction mechanism generally has three gears, namely high-speed gear, neutral gear and low-speed gear. In high-speed gear, the planetary mechanism transmits power according to the speed ratio of 1; in neutral gear, the planetary mechanism does not transmit power; in low-speed gear, the planetary mechanism realizes deceleration Torque function. In the operating conditions of the planetary reduction mechanism, most of them are in the high-speed gear state, so the noise, heat, and transmission efficiency under the high-speed gear working condition greatly affect th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H57/08F16H59/02
CPCF16H3/44F16H57/08F16H59/02
Inventor 刘志柱张鑫蔡未末
Owner DONGFENG MOTOR CORP HUBEI
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