Planetary gear speed reducer

A technology of planetary gear reduction and reducer, which is applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., and can solve the problems of important parts damage, planet carrier strength enhancement, etc.

Inactive Publication Date: 2011-08-17
NINGBO XINHONG HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of transmitting large torque, the strength of the loaded parts, especially the planet carrier, cannot be incre

Method used

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  • Planetary gear speed reducer
  • Planetary gear speed reducer

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Embodiment Construction

[0013] The present invention will be further explained below in conjunction with the drawings.

[0014] See figure 1 , A planetary gear reducer, including a housing 1 as a torque output end, a bracket flange 2 assembled with the housing through a bearing, a spline sleeve 3 as a high-speed input shaft of the reducer, and a housing The input torque is transmitted to the first-stage planetary gear train 5, the second-stage planetary gear train 6 and the third-stage planetary gear train 7 of the housing through gears. The three-stage planetary carrier 74 of the third-stage planetary gear train is provided with three One-stage planet carrier side plate 70 and five cantilever beam cylinders 71 integrally cast with the planet carrier body, and the bearings at the junction of the shell and the bracket flange are two single-row tapered roller bearings 4. The spline sleeve is connected with an external power source, and passes through the three-stage planetary gear train, the two-stage pl...

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Abstract

The invention discloses a planetary gear speed reducer which comprises output torque shell, a bracket flange, a spline housing, a primary planetary gear train, a secondary planetary gear train and a tertiary planetary gear train, wherein the bracket flange and the shell are assembled together through a bearings; the spline housing is utilized as the high-speed input shaft of the speed reducer; the primary planetary gear train, the secondary planetary gear train and the tertiary planetary gear train transfer an input torque to the shell through a gear in the shell; a tertiary planetary frame of the tertiary planetary gear train is provided with a tertiary planetary frame side plate and five cantilever beam cylinders which are cast together with a planetary frame body; and the bearings at the joint of the shell and the bracket flange are two single-row tapered roller bearings. According to the invention, by utilizing one planetary side plate, the intensity of the planetary frame is increased, and the service life is improved; through the two single-row tapered roller bearings which are installed together correspondingly at an adjustable interval, the loading supporting points of the bearings can be enlarged, and the static loading of the whole planetary gear speed reducer can be improved; and through changing gear materials, a heat processing technology and a manufacturing process, the gear module can be reduced while the gear intensity is improved.

Description

Technical field [0001] The invention relates to a reducer, in particular to a planetary gear reducer. Background technique [0002] The reducer is a device that matches the speed and transfer torque between the prime mover and the working machine, and is widely used in modern machinery. At the end of the 20th century, the reducer technology has been greatly developed. Compared with the past, cylindrical gears generally adopt carburizing, quenching, and gear grinding. The carrying capacity is significantly improved, while the size is smaller, the efficiency is higher, the weight is lighter, and the noise is lower; the priority coefficient is adopted in the design, the dimensions are neat, and the parts are common. Strong interchangeability; more and more diversified structural design, more and more types of reducers, thus expanding the scope of use. [0003] The reducer has the characteristics of high efficiency during starting and working, low energy consumption, low noise, compa...

Claims

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Application Information

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IPC IPC(8): F16H57/08F16H55/06F16H57/02F16H55/17
CPCF16H1/46
Inventor 叶兵兵陈恩涯
Owner NINGBO XINHONG HYDRAULIC
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