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Low-noise automobile trunk reducer

A reducer and low-noise technology, applied in the direction of gear vibration/noise attenuation, transmission parts, gear transmission, etc., can solve the complex structure of the combined helical gear inner gear housing, high noise of the planetary reducer, high assembly accuracy requirements, etc. Problems, to achieve the effect of improving the running accuracy and sealing performance, running smoothly, and small size

Active Publication Date: 2015-11-11
SHENZHEN ZHAOWEI MACHINERY&ELECTRONICS CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a low-noise automobile tail box reducer, which aims to solve the problems of high noise, poor running balance, complex structure of the combined helical gear inner gear housing, high assembly precision requirements and difficult manufacturing in the prior art. Large and poor sealing performance

Method used

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0036] It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiti...

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Abstract

The invention relates to the technical field of reducers, and provides a low-noise automobile trunk reducer which comprises an inner gear shell, an input mechanism and at least two stages of planetary gear transmission mechanisms. The inner gear shell comprises an inner gear shell body and first helical teeth integrally formed on the inner wall of the inner gear shell body. A first-stage planet holder in the first-stage planetary gear transmission mechanism is integrally formed. The input mechanism comprises a first-stage sun gear. The first-stage sun gear, first-stage planetary gears, a second-stage sun gear and second-stage planetary gears are in helical tooth transmission with the inner gear shell body. In the low-noise automobile trunk reducer, the helical tooth structure and the inner gear shell body are integrally formed, and manufacturing errors caused by respective machining of the helical teeth are avoided; meanwhile, the first-stage planet holder is of an integral structure, so that the overall running precision and sealing performance of the reducer are improved, and assembling errors caused by combined assembling are avoided; all transmission gears are in helical tooth transmission, so that the overlap ratio is high, running is stable, and carrying capacity is large; and the reducer is more compact in structure and smaller in size.

Description

technical field [0001] The invention relates to the technical field of speed reducers, and more specifically relates to a low-noise automobile tail box speed reducer. Background technique [0002] The existing automobile tail box reducer mainly adopts a multi-stage spur gear planetary reduction mechanism. Although the processing of spur gears is convenient, its coincidence degree is low and the running balance is poor, which leads to the noise of the planetary reducer. In order to improve the noise problem, some automobile tail box reducers adopt a combined structure of straight teeth and helical teeth, helical teeth and helical teeth, but because the inner gear housing adopts a combined structure, the straight teeth and helical teeth or all levels of helical teeth The tooth part needs to be processed separately, resulting in a complex overall structure of the reducer, high assembly precision requirements, difficult manufacturing, high cost, and poor sealing performance of ...

Claims

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Application Information

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IPC IPC(8): F16H1/46F16H1/32F16H57/08F16H57/023
CPCF16H1/32F16H1/46F16H57/0006F16H57/023F16H57/082F16H2001/325
Inventor 李平徐尚祥任庆良
Owner SHENZHEN ZHAOWEI MACHINERY&ELECTRONICS CO LTD
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