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Planet gear speed reducer

A planetary gear reduction, planetary gear set technology, applied in the direction of gear transmission, gear lubrication/cooling, belt/chain/gear, etc., can solve the problems of complicated manufacturing process of planetary gear reducer, avoid processing technology, improve characteristics, the effect of reducing the manufacturing cost

Inactive Publication Date: 2012-07-18
赵强 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the analysis of the manufacturing principle of the planetary gear, in order to achieve the operation accuracy of the planetary gear reducer, the accuracy of the planetary gear must be made to a very high precision level, which complicates the manufacturing process of the planetary gear reducer

Method used

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Embodiment Construction

[0013] Now in conjunction with accompanying drawing, the present invention will be further described:

[0014] Such as figure 1 , figure 2 As shown, the present invention includes a gear transmission portion and a housing portion. Wherein: the shell part includes the tail end housing 16 and the planetary internal gear housing 23; the gear transmission part includes the sun gear shaft 21, the planetary gear support shaft body 22 and three planetary gear sets, and the planetary gear sets are connected with the sun gear simultaneously. The gear shaft 21 meshes with the internal gear on the planetary internal gear housing 23 to drive the planetary gear bracket shaft body 22 to rotate.

[0015] Such as figure 1 As shown, each planetary gear set is a left planetary gear 5 and a right planetary gear 10 installed in parallel at both ends of the planetary gear shaft 7, and the opposite end faces of the left planetary gear 5 and the right planetary gear 10 are respectively equipped ...

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Abstract

The invention provides a novel planet gear speed reducer, which can maintain that the plant gear speed reducer operates at high precision under the lower processing precision of the planet gear and is compact in structure. The novel planet gear speed reducer comprises a gear transmission part and a shell part; wherein the shell part comprises a tail end shell and a planet internal-gear shell; the gear transmission part comprises a plurality of planet gear sets, a sun gear shaft and a planet wheel bracket shaft body; each planet gear set is two planet gears arranged at both ends of the planet gear shaft in parallel; the planet gear shaft is arranged on the planet wheel bracket shaft body; and a needle roller bearing is arranged between the planet gear shaft and the planet wheel bracket shaft body, so that the planet wheel shaft can rotate relatively between the planet gear bracket shaft bodies. According to the novel planet gear speed reducer, the manufacturing cost of the planet gear speed reducer is effectively reduced, and the high precision is realized.

Description

technical field [0001] The invention relates to a reducer, in particular to a planetary gear reducer installed in a stepping motor or a servo motor. Background technique [0002] Due to the structure of the planetary reducer, the minimum single-stage reduction is 3, and the maximum generally does not exceed 10. The common reduction ratio is: 3.4.5.6.8.10, and the number of stages of the reducer generally does not exceed 3. Compared with other reducers, the planetary reducer has high rigidity, high precision (within 1 point for a single stage), high transmission efficiency (97%-98% for a single stage), high torque / volume ratio, and maintenance-free for life, etc. features. Because of these characteristics, most planetary reducers are installed on stepper motors and servo motors to reduce speed, increase torque, and match inertia. Among them, the precision planetary reducer is equipped with a servo motor, so the backlash level (arc minutes) is very important. [0003] US729...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H57/023F16H57/04F16H57/08
CPCF16H2001/289
Inventor 赵强
Owner 赵强
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