Input suite of cycloidal reducer and machining method of input suite

Abstract

The invention belongs to the field of reduction gears, provides an input suite of a cycloidal reducer and a machining method of the input suite and aims to solve the problems that an existing input suite is of a split structure, easy to damage and high in production and manufacturing cost. The input suite comprises an input shaft, the periphery of the input shaft is integrally provided with two annular protrusions in the circumferential direction, and the circle centers of the annular protrusions are arranged to be eccentric with the axis of the input shaft; the eccentric directions of the two annular protrusions are opposite to each other. According to the input suite of the cycloidal reducer and the machining method of the input suite, the input shaft, an eccentric sleeve and a bearing inner ring (equivalent to the eccentric sleeve of the input suite) are integrated, the structure is simplified, cumulative tolerance is shortened, and precision is greatly improved; due to the fact that the input suite is shrunk into a whole, an inner hole of the input suite can be enlarged, a motor shaft can directly stretch into the eccentric inner hole, the length is shortened, the size of an input end cover is further shortened, rigidity of workpieces is greatly increased, and the phenomenon of shaft breakage cannot occur anymore; nearly 30% of raw materials are saved, so that machining time is saved by 50%, cost is greatly lowered, and the blank in China is filled up.

Description

technical field [0001] The invention belongs to the field of reducers, and in particular relates to an input kit of a cycloid reducer and a processing method thereof. Background technique [0002] The input part of the traditional cycloid reducer is composed of an input shaft, an eccentric sleeve, and a bearing inner ring. Using the principle of eccentricity to drive the operation of the cycloidal wheel, its defects are as follows: [0003] 1. Because it is a combination of three parts, the cumulative tolerance is large, which affects the eccentricity accuracy, and causes problems such as temperature rise, noise, and short service life, which affect the quality of the cycloidal positive machine. [0004] 2. Due to the three-piece combination, the eccentric sleeve and the inner ring of the bearing must have a certain thickness (to prevent breakage), so that the inner hole is limited in size, and the input shaft is forced to be thinner, resulting in excessive load on the inpu...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the combination of three parts, the cumulative tolerance is large, which affects the eccentricity accuracy, and the temperature rise, noise, short service life and other problems affect the quality of the cycloidal positive machine

[0004] 2. Due to the three-piece combination, the eccentric sleeve and the inner ring of the bearing must have a certain thickness (to prevent breakage), so that the size of the inner hole is limited, and the input shaft is forced to be thinner, resulting in excessive load on the input shaft and frequent shaft breakage accidents. Either the overall size of the input part is enlarged, which wastes more materials and increases the quality and volume of the entire product

[0005] 3. Both material cost and processing cost are too high

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