External wave type compound rolling moveable teeth speed reducer

Abstract

The invention relates to an external wave type compound rolling moveable teeth speed reducer which comprises a compound shock wave device, moveable teeth, a moveable teeth frame, waveform wheels and a frame, wherein the compound shock wave device is composed of an input shaft, a small gear, a big gear, a locking cover, an eccentric shaft, a shock wave disk I and a shock wave disk II; when the small gear is driven to rotate by the input shaft, the big gear is engaged with the exterior of the small gear and the big gear and the eccentric shaft fixedly connected with the locking cover are driven to rotate; the eccentric shaft is used for driving the shock wave disk I and the shock wave disk II to eccentrically rotate, thereby realizing the contact engaging of the shock wave disks I and II and the moveable teeth and the radial motion of a moveable teeth pin shaft along a radial slot of the fixed moveable teeth frame; and meanwhile, the moveable teeth frame is fixedly connected with the frame and the moveable teeth and keeps contact with the waveform wheels I and II all the time, so that the moveable teeth are forced to drive the waveform wheels I and II to rotate, thereby realizing the motion and power transfer between the input shaft and an output shaft. The external wave type compound rolling moveable teeth speed reducer has the characteristics of wide speed ratio scope, strong bearing capacity, excellent processing manufacturability of the waveform wheels, static balance of the force born by the whole transmission device, and the like.

Description

technical field [0001] The patent of the invention relates to an external wave compound rolling movable gear reducer, which belongs to the technical field of mechanical transmission. Background technique [0002] Movable tooth transmission is a type of transmission that uses movable gear teeth (movable teeth) as an intermediary to realize motion and power transmission between two coaxial axes. It has compact structure, wide range of transmission ratio, high transmission efficiency and strong bearing capacity, etc. advantage. A variety of structural forms of movable tooth reducers and patented technologies have been proposed so far, and most of the existing transmission structures contain an internal gear that is internally meshed with the movable tooth and has a large number of teeth. The reducer with this feature is called an internal mesh movable tooth reducer. In order to ensure the transmission performance and have a relatively compact overall structure, the structural...

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Problems solved by technology

[0005] The purpose of the patent of the present invention is to draw lessons from the advantages of the above-mentioned external wave type movable tooth reducer with good processing technology of the external wave wheel, and at the same time overcome the shortcomings of its single-stage speed ratio that is not large enough, and propose an external wave of the patent of the present invention. Wave compound rolling movable tooth reducer

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