Hyperbolic-curve speed reducer

Abstract

The invention discloses a hyperbolic-curve speed reducer, and belongs to the field of reduction equipment. The hyperbolic-curve speed reducer comprises an inner tooth ring, an input shaft, an input mechanism, a hyperbolic-curve speed-reducing mechanism and an output mechanism, wherein the inner tooth ring, in a peripheral direction, is provided with a plurality of inner tooth ring projecting teeth at an equal interval; the hyperbolic-curve speed-reducing mechanism comprises a first cycloidal gear and a second cycloidal gear; the first cycloidal gear and the second cycloidal gear are symmetrically and rotatably arranged in the inner tooth ring at an angle of 180 degrees; side edges of the two cycloidal gears are provided with a plurality of short-amplitude curved teeth at an equal interval in the peripheral direction; and the short-amplitude curved teeth on the two cycloidal gears are engaged with the inner tooth ring projecting teeth on the inner tooth ring. The input shaft drives the first cycloidal gear and the second cycloidal gear to rotate by virtue of the input mechanism; and the first cycloidal gear and the second cycloidal gear drive the output mechanism to rotate. The hyperbolic-curve speed reducer is in engaged transmission by virtue of the inner tooth ring projecting teeth of the inner tooth ring, and the short-amplitude curved teeth of the first cycloidal gear and the second cycloidal gear, is compact in structure, small in transmission stable vibration, high in transmission efficiency and great in reduction ratio.

Description

technical field [0001] The invention relates to the technical field of reduction equipment, in particular to a hyperbolic reducer. Background technique [0002] At present, common oscillating reduction devices on the market, such as cycloidal pin gear reduction, are based on a planetary transmission structure with a small tooth difference. The center wheel tooth profile curve is the same as the involute planetary transmission mode with small tooth difference, and the Z-X-F type N-type planetary gear transmission is retained. This structure can obtain a large reduction ratio, small size, relatively low noise, and high transmission efficiency. Compared with general involute gears, there will be no addendum interference phenomenon, so the cycloidal hyperbolic reducer is widely used. However, these cycloidal pin gear reducers have complex processing technology for the inner ring gear. As a circular arc sliding pair, the inner ring gear surface is easily worn. The initial wear ...

AI Technical Summary

Problems solved by technology

However, these cycloidal pin gear reducers have complex processing technology for the inner ring gear. As a circular arc sliding pair, the inner ring gear surface is easily worn. The initial wear will cause the internal noise of the deceleration to increase. If the wear is serious, the backlash clearance will increase. Big

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