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Power transmission device capable of reducing bicycle sliding resistance

A technology of power transmission device and sliding resistance, applied in the direction of wheel transmission, elastic element transmission, vehicle parts, etc., can solve the problems of large sliding resistance and noise, reduce clutch impact, reduce rotational noise, and reduce the structure of the device. compact effect

Inactive Publication Date: 2014-08-27
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a power transmission device that reduces the sliding resistance of bicycles, which can solve the problems of high sliding resistance and high noise in existing bicycle power transmission devices

Method used

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  • Power transmission device capable of reducing bicycle sliding resistance
  • Power transmission device capable of reducing bicycle sliding resistance
  • Power transmission device capable of reducing bicycle sliding resistance

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0023] Figure 1 to Figure 4 The shown power transmission device for reducing the sliding resistance of bicycles is used for sprocket 1 to transmit power to the hub 6 of the rear wheel, and it mainly includes coaxially rotating sprocket 1, rear axle, tower base 2, jaw clutch and Wheel hub 6, the rear shaft passes through freewheel body 2, jaw clutch and wheel hub 6 in turn, one end of freewheel body 2 is connected to sprocket 1 through a spline, and the spline connecting freewheel 2 and sprocket 1 is the same as the common products on the market Consistent, ball bearing 3 is installed inside the freewheel base 2 to realize reliable rotation on the rear axle. The other end of freewheel base 2 is connected to hub 6 through jaw clutch, and two ball bearings 8 and 9 are installed inside hub 6 . The jaw clutch includes a driving gear sleeve 3 and a driven g...

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Abstract

The invention discloses a power transmission device capable of reducing bicycle sliding resistance. The device comprises a chain wheel, a column foot, a hub and a clutch which are in coaxial rotation. One end of the column foot is connected with the chain wheel, and the other end is connected with the hub through the jaw clutch. The jaw clutch comprises a driven gear sleeve and an axial sliding drive gear sleeve, and embedded end teeth are arranged at the opposite ends of the drive gear sleeve and the driven gear sleeve respectively. A spiral spline movably connected with the drive gear sleeve is fixed on the column foot, and a spline groove is sleeved on the drive gear sleeve. The driven gear sleeve is a step shaft sleeve, a ratchet is arranged at the small diameter section of the driven gear sleeve, and a snapping groove for the ratchet to be snapped in is formed in the inner hole wall of the hub. A synchronizer is mounted between the drive gear sleeve and the driven gear sleeve. Compared with the prior art, bicycle power can be transmitted effectively, power transmission can be stopped at the over-speed, free rotation of the hub is achieved, the wheel rotation resistance during sliding of the bicycle is reduced, and rotation noise is reduced.

Description

technical field [0001] The invention relates to the technical field of bicycles, in particular to a transmission mechanism of a bicycle. Background technique [0002] Bicycles are a means of transportation for people to travel green and exercise, and they are developing in the direction of portability and comfort. Bicycles have two outstanding requirements for the power transmission system: 1. Effective transmission of power; 2. The speed of the wheel can exceed the speed of the sprocket. In order to realize this function, bicycles generally use an overrunning clutch to realize the power transmission between the body of the bicycle and the wheel hub. There is an existing overrunning clutch ratchet and a ratchet plate provided with a pawl and its return spring. The ratchet and the pawl plate are supported by bearings to ensure coaxial rotation. When the chain drives the outer ring of the sprocket of the flywheel, the outer ring The pawl of the rear wheel transmits torque to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M11/02B62M21/00
Inventor 叶燕帅李春青姜峰王镇江刘泽仙韦畅萍
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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