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Bicycle stepless speed changer

A continuously variable transmission, bicycle technology, applied in the direction of vehicle gearbox, vehicle parts, wheel transmission device, etc., can solve the problems of increasing the friction of the shifting mechanism and the chain, shortening the service life of the related components, and difficult to realize the speed change, so as to reduce the The effect of less card chain, auxiliary and servo system and low loss

Inactive Publication Date: 2013-09-25
胡泓海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it also has a disadvantage: it is difficult to change the speed when necessary
This kind of speed regulating mechanism has such problems: the driving and driven gears are often not on the same plane, which is prone to phenomena such as chain jamming and chain dropping. At the same time, it will increase the friction between the gear shifting mechanism and the chain, and shorten the service life of related components; In addition, this kind of speed change is a stepped speed change, which requires multiple operations to complete the leapfrog speed change, and the operation is complicated

Method used

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  • Bicycle stepless speed changer
  • Bicycle stepless speed changer
  • Bicycle stepless speed changer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] (i) Embodiment one (rear axle type bicycle continuously variable transmission) (such as figure 1 ):

[0017] (1) System composition and mechanism connection: The bicycle CVT in this embodiment is mainly located on the rear axle of the bicycle, and is mainly composed of a CVT (box) 299 , a bevel gear differential 199 and so on. In the bevel gear differential 199: the differential housing 198 is externally connected to the housing total sprocket 197, and the housing total sprocket 197 receives the torque transmitted from the chain to drive the differential housing 198 to rotate; planetary gear shaft one 110 is externally connected to the differential The transmission housing 198 is internally connected to the first planetary gear 111; the second planetary gear shaft 120 is externally connected to the differential case 198, and is internally connected to the second planetary gear 121; the axial centerline of the first planetary gear shaft 110 and the second planetary gear ...

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Abstract

A bicycle stepless speed changer is mainly composed of a miniature differential system and a miniature friction variable-diameter stepless speed changing system. Two output half shafts of the differential system and two variable-diameter wheel sets of the friction variable-diameter stepless speed changing system are connected through two pairs of mutually-meshed bevel gears, and one of the half shafts is taken as a torque output mechanism to be directly connected to a bicycle flywheel. The bicycle stepless speed changer is simple in structure, wide in speed changing range and small in comprehensive cost, and can be mounted in a bicycle of an existing form after the bicycle is modified slightly.

Description

Technical field [0001] The present invention involves a type of bicycle -free transmission. Specifically, a friction variable diameter -free transmission is used to adjust the speed of the two -axis gear in the gear differential.To realize the transmission of torque and the scaleless change of speed output. Background technique [0002] Bicycles are widely used in real life, which is a common travel tool for people.But there is also a disadvantage: it is difficult to achieve changes when necessary.The existing technologies are generally implemented in this way: there are one or more radius tooth tooth tray installed on the middle shaft, and there are two or more rear rears of the radius at the flywheel of the rear axis.The axis dental dish, the middle shaft toothplate and the rear axis toothplate are connected by a chain; its gear shifting is achieved by the different wheel disks of the central axis dental dish and the rear axis dental disk by the gear shifting mechanism.There ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/10B62M11/18
Inventor 胡泓海
Owner 胡泓海