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Planetary gear stepless variable-speed transmission for bicycle

A planetary gear, continuously variable speed technology, applied in wheel transmission, vehicle gearbox, vehicle parts, etc., can solve the problems of unsealed transmission, unsightly appearance, easy to fall off the chain, etc., to achieve stable and reliable speed regulation, use Convenience and improved performance

Inactive Publication Date: 2006-01-11
ZHEJIANG WATER CONSERVANCY & HYDROPOWER COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure mainly has the following disadvantages: the appearance is not elegant, the transmission cannot be sealed; the wear and tear in the transmission is large; a special chain tightening device is required; the chain is easy to detach

Method used

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  • Planetary gear stepless variable-speed transmission for bicycle
  • Planetary gear stepless variable-speed transmission for bicycle
  • Planetary gear stepless variable-speed transmission for bicycle

Examples

Experimental program
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Embodiment

[0016] Such as figure 1 , figure 2 , image 3 As shown, the bicycle planetary gear continuously variable transmission device described in this embodiment mainly includes a planetary gear 4 , a cylindrical ferrule 5 , a ring gear 6 , crank throws 7 , and internal teeth 8 . Two planetary gears 4 are respectively loosely fitted on the bellcrank 7, and a cylindrical ferrule 5 is solidified on the end face of the planetary gear 4, and the planetary gear 4 meshes with the inner tooth 8 on the ring gear 6; the ferrule 5 The center of circle is on the index circle of the planetary gear 4; the central hole of the planetary gear 4 is in the inner circle of the collar 5. In order to adjust the speed conveniently, the ring gear 6 is composed of internal teeth 8 and external teeth 9. The number of teeth of the ring gear 6 is twice the number of teeth of the planetary gear 4 meshing with it. Wire rope 12 is connected with handle wheel 15. The rotary motion input to the shaft in the dou...

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PUM

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Abstract

A planetary gear driver unit with stepless speed variation for bicycle is composed of two planetary gears, cylindrical sleeve, toothed ring, crank, and internal gear. Its advantages are convenient operation, saving labour, and stable and reliable speed control.

Description

technical field [0001] The invention relates to a bicycle transmission device, in particular to a bicycle planetary gear stepless transmission device. Background technique [0002] At present, the power of bicycles is realized through the transmission of chains and sprockets, especially for variable-speed bicycles. Several sprockets with different diameters are installed on the central axis and rear axle, and the bicycle is realized by changing the engagement of the chain and the sprockets with different diameters. The stepped transmission. This structure mainly has the following disadvantages: the appearance is not elegant, the transmission cannot be sealed; the wear is large during the transmission; a special chain tightening device is required; the chain is easy to fall off. Contents of the invention [0003] The object of the present invention is to provide a bicycle planetary gear stepless speed change transmission device with simple structure, reliable speed regulat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M11/14
Inventor 陶国清刘吉来郝建华
Owner ZHEJIANG WATER CONSERVANCY & HYDROPOWER COLLEGE
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