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Gear-adjustable planetary gear train transmission

A technology of planetary gear train and planetary gear, which is applied in vehicle gearboxes, gear transmissions, components with teeth, etc., can solve the problems of small transmission ratio selectivity, large volume, small transmission ratio, etc., and achieve reliable The effects of selectivity, high transmission efficiency, and small power loss

Inactive Publication Date: 2014-04-30
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the commonly used industrial planetary gear train transmission has only one stage of speed change, and its volume is large, the selectivity of the transmission ratio is small, and it does not have the function of shifting gears.
On the other hand, current transmissions capable of shifting gears all adopt a parallel-shaft gear transmission structure. The transmission ratio is small, the output shaft and the input shaft rotate in the same direction, and there are multiple gear pairs meshing with each other on the two shafts. The gears are arranged into a gear, and a clutch is set between the gears
In this way, in industrial production, it is impossible to meet the conditions of large transmission ratio, gear change, and reverse rotation of the input shaft and output shaft.

Method used

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  • Gear-adjustable planetary gear train transmission
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  • Gear-adjustable planetary gear train transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: as Figure 1-6 As shown, a planetary gear train transmission with adjustable gears includes planetary gear system I, planetary gear system II, planetary gear system III, output shaft system, planet carrier fixed front end cover 1, planet carrier fixed rear end cover 21, Ring gear end cover 8, stepped ring gear 14; the output shaft system includes output shaft 3, sleeve 4, slidable sleeve 19, slidable spline 20, spring 23, deep groove ball bearing I2, deep groove Ball bearing Ⅱ7, deep groove ball bearing Ⅲ15, the outside of the output shaft 3 is stepped, and the largest part of the middle diameter of the output shaft 3 adopts the outer rectangular spline structure and the inner rectangular spline structure of the slidable spline 20, which can slide The outside of the spline 20 also adopts a rectangular spline structure and the rectangular splines inside the No. 1 sun gear 5, No. 2 sun gear 22, and No. 3 sun gear 18 in the planetary gear system I, planetary ...

Embodiment 2

[0023] Embodiment 2: as Figure 1-6 As shown, a planetary gear train transmission with adjustable gears includes planetary gear system I, planetary gear system II, planetary gear system III, output shaft system, planet carrier fixed front end cover 1, planet carrier fixed rear end cover 21, Ring gear end cover 8, stepped ring gear 14; the output shaft system includes output shaft 3, sleeve 4, slidable sleeve 19, slidable spline 20, spring 23, deep groove ball bearing I2, deep groove Ball bearing Ⅱ7, deep groove ball bearing Ⅲ15, the outside of the output shaft 3 is stepped, and the largest part of the middle diameter of the output shaft 3 adopts the outer rectangular spline structure and the inner rectangular spline structure of the slidable spline 20, which can slide The outside of the spline 20 also adopts a rectangular spline structure and the rectangular splines inside the No. 1 sun gear 5, No. 2 sun gear 22, and No. 3 sun gear 18 in the planetary gear system I, planetary ...

Embodiment 3

[0025] Embodiment 3: as Figure 1-6 As shown, a planetary gear train transmission with adjustable gears includes planetary gear system I, planetary gear system II, planetary gear system III, output shaft system, planet carrier fixed front end cover 1, planet carrier fixed rear end cover 21, Ring gear end cover 8, stepped ring gear 14; the output shaft system includes output shaft 3, sleeve 4, slidable sleeve 19, slidable spline 20, spring 23, deep groove ball bearing I2, deep groove Ball bearing Ⅱ7, deep groove ball bearing Ⅲ15, the outside of the output shaft 3 is stepped, and the largest part of the middle diameter of the output shaft 3 adopts the outer rectangular spline structure and the inner rectangular spline structure of the slidable spline 20, which can slide The outside of the spline 20 also adopts a rectangular spline structure and the rectangular splines inside the No. 1 sun gear 5, No. 2 sun gear 22, and No. 3 sun gear 18 in the planetary gear system I, planetary ...

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Abstract

The invention relates to a gear-adjustable planetary gear train transmission and belongs to the technical field of mechanical transmissions. The gear-adjustable planetary gear train transmission comprises a first planetary gear train, a second planetary gear train, a third planetary gear train, an output shafting, a planetary carrier fixed front end cover, a planetary carrier fixed rear end cover, a gear ring end cover and a laddered gear ring. Corresponding planetary gears are driven to rotate through rotation of the laddered gear ring, so that sun gears rotate in a transmitted manner, each sun gear is of an inner rectangular spline structure and can be matched with a slidable spline to transmit rotation to an output shaft, and the position of the slidable spline on the output shaft is changed through a spring sleeve so that the slidable spline can be matched with different sun gears to realized change of gears and transmission is input to the output shaft with different transmission ratios. A planetary gear train structure is adopted instead of a parallel-shaft type gear transmission structure, so that the gear-adjustable planetary gear train transmission is large in transmission ratio, high in transmission efficiency, small in power loss during gear changing, freeness of clutches and applicable to machinery small in load bearing.

Description

technical field [0001] The invention relates to a planetary gear train transmission with adjustable gear positions, belonging to the technical field of mechanical transmissions. Background technique [0002] With the development of science and technology, the transmission has been widely used and is an important part of the mechanical power system. At present, there are many kinds of transmissions, and their performances are also different. In the prior art, the commonly used industrial planetary gear train transmission has only one stage of speed change, and has a large volume, and the selectivity of the transmission ratio is small and does not have the function of shifting gears. On the other hand, current transmissions capable of shifting gears all adopt a parallel-shaft gear transmission structure. The transmission ratio is small, the output shaft and the input shaft rotate in the same direction, and there are multiple gear pairs meshing with each other on the two shaft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H3/62F16H57/023
CPCF16H3/66F16H2200/201
Inventor 郑加平吴涛
Owner KUNMING UNIV OF SCI & TECH
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