Harmonic intermediate shaft transmission for bicycle

A harmonic reducer and transmission technology, which is applied in vehicle gearboxes, vehicle parts, transportation and packaging, etc., can solve the problems of large volume, heavy weight, slow response, etc., achieve multiple choices, reduce its own weight and volume, and smooth The effect of shifting speed

Inactive Publication Date: 2016-07-20

丁琪彬

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AI-Extracted Technical Summary

Problems solved by technology

[0002] At present, the central shaft transmission mechanism of bicycles is large in size and heavy in we...

Abstract

The invention provides a harmonic intermediate shaft transmission for a bicycle and relates to an intermediate shaft speed change mechanism for the bicycle. The harmonic intermediate shaft transmission is composed of an input crank, an output chain wheel, a harmonic reducer and a control mechanism. The input crank is in linkage with the harmonic reducer, a transmission route is selected through the control mechanism, and finally the output chain wheel is engaged with a chain, so that the bicycle is driven to move. By the adoption of the harmonic intermediate shaft transmission, people can change the speed faster, more reliably and more smoothly in the riding process, and compared with a traditional intermediate shaft transmission, the harmonic intermediate shaft transmission has the beneficial effects that the dead weight and the size are greatly reduced, and more choices and greater convenience are brought for design and transformation of the bicycle.

Application Domain

Vehicle transmission

Technology Topic

VariatorSprocket +3

Image

Examples

Experimental program(1)

Example Embodiment

[0008] In the figure, the crank 1 is connected with the harmonic reducer 2, and the harmonic reducer 2 is connected with the sprocket 4 through a one-way clutch. The control mechanism 3 can be directly connected to the sprocket 4 through the expansion and contraction of the ratchet. When the ratchet wheel in the control mechanism 3 contracts, the sprocket 4 can only be driven by the harmonic reducer 2 to make the bicycle run at a low speed. When the ratchet wheel in the control mechanism 3 extends, the crank 1 directly drives the chain The wheel 4 rotates so that the bicycle is running at high speed. The expansion and contraction of the ratchet wheel in the control mechanism 3 can be controlled by manual dialing, so that the bicycle can change speed quickly, reliably and smoothly.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

smooth shifting