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Combined planetary gear mechanism

A planetary shifting and combined technology, which is applied in the direction of mechanical equipment, gear transmission, belt/chain/gear, etc., can solve the problems of complex structure of the whole machine, small range of speed ratio change, and unsuitability, so as to expand the range of change , expand the scope of use, easy to manufacture the effect

Inactive Publication Date: 2012-04-04
徐至辉
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The structure of the whole machine is complicated, the manufacturing difficulty is high, and the cost is high
[0005] 2. At the same time of stepped speed change, it is impossible to achieve a large speed ratio reduction, only a small reduction ratio can be realized
And the variation range of speed ratio is small
[0006] The tandem-type small-tooth-difference transmission mechanism proposed in the patent 2009200729092 is mainly suitable for the use of large speed ratios, and is not suitable for small speed ratios.

Method used

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Embodiment 2

[0059] figure 2 It is a structure diagram of a 3-speed combined planetary transmission mechanism. It consists of 3 gear pairs with different gear ratios and a 2K-H negative planetary mechanism. It is input from the sun gear on the right and is in the left position. The shaft head output of the internal gear 14 with less tooth difference.

[0060] The structure and working principle of this embodiment are the same as that of embodiment 1, except that there is one less tooth-difference gear pair. Therefore, the output speed is also reduced by one gear, with a total of 3 gears. In addition, the left position is selected. The shaft head of the internal gear 14 is output.

Embodiment 3

[0062] image 3 It is a structural diagram of a 2-speed combined planetary transmission mechanism. It consists of two gear pairs with different gear ratios and a 2K-H negative planetary mechanism. The difference from the second embodiment is the gear pair with small teeth difference. One is missing, so the output speed is also missing by one gear, for a total of 2 gears.

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Abstract

The invention discloses a combined planetary gear mechanism, which not only can stably carry out step transmission during operation under the condition of not interrupting the power, but also can be used for simultaneously finishing the clutch of deceleration and power at greater or smaller speed ratio. In addition, the combined planetary gear mechanism has the advantages of wide change range of speed ratio, simple structure, easiness in manufacture and low cost. The combined planetary gear mechanism consists of a few of gear pairs with different tooth numbers and small tooth difference, an eccentric shaft, a few of balancing sheets, a 2K-H minus planetary transmission mechanism, a few of brakes and the like.

Description

Technical field [0001] The present invention relates to a combined planetary transmission mechanism, which is capable of smoothly step-by-step transmission in full load or no-load operation without interrupting power, and can simultaneously complete the deceleration of larger or smaller speed ratios and the clutch of power Transmission mechanism. Background technique [0002] The existing planetary transmission mechanism is composed of several 2K-H negative planetary mechanisms. Each planetary mechanism is composed of a sun gear, several planetary gears, an internal gear and a planet carrier. The structure is complex and the number of gears is complicated. many. [0003] The disadvantages are: [0004] 1. The whole machine has complex structure, high manufacturing difficulty and high cost. [0005] 2. It is impossible to achieve high speed ratio deceleration at the same time of stepwise speed change, only a small reduction ratio can be achieved. And the change range of the speed ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/62
Inventor 徐至辉
Owner 徐至辉