Decelerator for control motor

Abstract

The invention relates to a speed reducer used for controlling a motor, which comprises an input shaft, a step planetary gear, an internal gear, an output shaft, a right housing, a left housing and a plurality of support bearings. The invention has the advantages that: a high rotational speed meshing is arranged for the gear of the speed reducer, so the processing of the gear is simple with low noise and little heat generating, which is especially obvious with the reducing speed ratio increasing; rolling bearing matching is adopted for the gear and the bearing with high efficiency and convenient installation of the output and the input shafts; 4 to 7 gears participate in meshing work when the gear is meshed with good equal load property, little heat generating, low noise and long service life due to low speed meshing of the gear; four gears can form a speed reducer with less than 100 of drive ratio, thereby adapting to requirement of each sequence reduction ratio and facilitating serial production; reasonable addendum coefficient, modification coefficient and serrated angle of pressure are adopted, thereby achieving a higher transmission efficiency.

Description

technical field [0001] The invention relates to a precision reducer suitable for controlling a motor, which belongs to the technical field of mechanical transmission. Background technique [0002] In the prior art, the most common control motor reducers are mainly PX and PL series planetary reducers. The center gears of these reducers are complicated to process, with a large number of gears and high cost. The working time is long, and it is involved in the meshing work with three planetary wheels at the same time, the wear is fast, and the processing requirements of the planetary carrier are high. Moreover, the reduction ratio of the reducer in the serialized products cannot be increased in numerical order, but can only be increased in multiples of the base number, such as 5, 8, 12, 15, 20, etc., to increase the reduction ratio, the number of gears needs to be increased, and at the same time Increasing the number of stages will also reduce the efficiency of the gear. Since...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the most common control motor reducers are mainly PX and PL series planetary reducers. The center gears of these reducers are complicated to process, with a large number of gears and high cost. The working time is long, and the three planetary gears are involved in the meshing work at the same time, the wear is fast, and the processing requirements of the planetary carrier are high

Moreover, the reduction ratio of the reducer in the serialized products cannot be increased in numerical order, but can only be increased in multiples of the base number, such as 5, 8, 12, 15, 20, etc., to increase the reduction ratio, the number of gears needs to be increased, and at the same time As the number of stages increases, the efficiency of the gear will also decrease

Since the gears of this series of reducers are planetary arranged according to the radial structure, in the case of a certain radial size, the gear and the gear shaft are limited by the radial size, and bearings cannot be installed, which will cause sliding friction and increase energy consumption. increase, and it is not easy to increase the modulus in structure to improve the gear strength. In the reduction ratio of the same level, the torsional strength of the reducer does not match the reduction ratio of the reducer

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