Cycloidal pin gear speed reducer

Abstract

The invention provides a cycloidal pin gear speed reducer. The cycloidal pin gear speed reducer comprises a shell, a cycloidal shaft, a first cycloidal gear, a second cycloidal gear and an output flange. Wherein the shell comprises a pinwheel outer shell, a cavity used for installing the first cycloidal gear and the second cycloidal gear is formed in the pinwheel outer shell, the inner circumferential surface of the pinwheel outer shell is of an inner tooth structure, and the inner tooth structure and the pinwheel outer shell are of an integrated structure; the middle part of the cycloid shaft is provided with a first eccentric shaft section and a second eccentric shaft section which are arranged in a non-coaxial manner and staggered with each other; outer tooth structures are arranged on the peripheral surfaces of the first cycloidal gear and the second cycloidal gear, a plurality of pin holes are formed in the gear surfaces of the first cycloidal gear and the second cycloidal gear, the first cycloidal gear is mounted on the first eccentric shaft section through a bearing, and the second cycloidal gear is mounted on the second eccentric shaft section through a bearing; the output flange comprises a cylindrical section and a pin shaft section which are integrally formed, the pin shaft section comprises a plurality of pin shafts, the pin shafts are designed to be assembled to be inserted into pin holes of the first cycloidal gear and the second cycloidal gear, and the cylindrical section is used for being connected with an output structure.

Description

technical field [0001] The invention relates to the field of reducers for mechanical equipment, in particular to a cycloidal pinwheel reducer. Background technique [0002] Cycloidal pin gear reducer is a novel transmission device that applies the principle of planetary transmission and adopts cycloid pin-tooth meshing. Its unique stable structure can replace ordinary cylindrical gear reducer and worm gear reducer in many cases. The pin wheel reducer has the advantages of large transmission ratio, high transmission efficiency, convenient maintenance, small size, light weight, smooth operation, low noise, reliable use, few failures, and long life. The cycloid reducer can achieve a high reduction ratio of 1:87 and a high-efficiency single-stage transmission of more than 90%. If multi-stage transmission is used, the reduction ratio will be larger. The reduction ratio of the first-stage transmission is 9-87, the reduction ratio of the two-stage transmission is 121-5133, and the...

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Problems solved by technology

[0003] The entire transmission device of the cycloidal pinwheel reducer can be divided into three parts: the input part, the deceleration part, and the output part. However, the combined structure of the cycloidal pinwheel reducer in the prior art is relatively complicated. and the pin gear sleeve are installed on the pin gear housing, and the input shaft also needs to be installed with an eccentric sleeve and a bearing and assembled with the cycloidal wheel. Its structure is relatively complicated, and the assembly process is also relatively complicated.

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