CN201041219Y

CN201041219Y - Cycloidal planetary gear speed reducer possessing input axis system unloading structure

Info

Publication number: CN201041219Y
Application number: CNU2007200701350U
Authority: CN
Inventors: 李国亮
Original assignee: SHANGHAI REDUCER MACHINERY CO Ltd
Current assignee: SHANGHAI REDUCER MACHINERY CO Ltd
Priority date: 2007-05-23
Filing date: 2007-05-23
Publication date: 2008-03-26
Anticipated expiration: 2017-05-23

Abstract

The utility model relates to a cycloid pin wheel speed reducer with an input axle system unloading structure. The utility model comprises a machine body, an input axle, an input end cover, a cycloid gear, a pin gear casing, a pin gear, an output pin axle, an output axle, an output bearing, and an eccentric bearing, the input axle is arranged at the middle of the machine body through an eccentric sleeve and the eccentric bearing, the cycloid gear is meshed with the eccentric bearing, the pin gear in the pin gear casing is arranged outside the cycloid gear, the output pin axle is arranged outside the pin gear casing, the input end cover is arranged at the front end of the input axle through the input axle seal and the input bearing, the output axle is connected with the input axle through an auxiliary bearing, two output bearings are arranged on the output axle. The utility model is characterized in that an input belt wheel is arranged at the end head of the input axle through an unloading bearing, and a spline plate is arranged at the top end of the input axle. The utility model has the advantages that the stressing state of the input end is improved, and the utility model can be used under various working conditions.

Description

A kind ofly have a cycloidal planetary gear speed reducer that input shaft is the off-load structure

Technical field

The utility model relates to a kind of cycloidal planetary gear speed reducer that input shaft is the off-load structure that has, and makes the input shaft of cycloidal planetary gear speed reducer can bear bigger radial load, belongs to the speed reducer technical field.

Background technique

Usually the general employing of cycloid speed reducer is as the structural type of Fig. 1, form by body 1, input shaft 2, input end cap 3, cycloidal gear 4, pin wheel housing 5, pin tooth 6, output bearing pin 7, output shaft 8, two output bearings 9, capacity eccentric bearings 10, its shortcoming is that input shaft is a cantilever structure, can not bear radial load, when importing as input end with belt, gear, sprocket wheel etc., because radial load is bigger, cycloid speed reducer can not use generally speaking, and the using scope of cycloid speed reducer is restricted.

Summary of the invention

The purpose of this utility model provide that a kind of input shaft that makes cycloidal planetary gear speed reducer can bear bigger radial load and unlikely inefficacy have a cycloidal planetary gear speed reducer that input shaft is the off-load structure.

For realizing above purpose, the technical solution of the utility model provides a kind of cycloidal planetary gear speed reducer that input shaft is the off-load structure that has, comprise body, input shaft, the input end cap, cycloidal gear, pin wheel housing, the pin tooth, the output bearing pin, output shaft, the output bearing, capacity eccentric bearing, input shaft is located at the centre of body by eccentric bushing and capacity eccentric bearing, cycloidal gear and capacity eccentric bearing engagement, pin tooth in the pin wheel housing is located at outside the cycloidal gear, pin wheel housing is provided with the output pin axle outward, the input end cap is located at the front end of input shaft by input shaft envelope and input bearing, output shaft is connected with input shaft by the input auxiliary bearing, on output shaft, be provided with two output bearings, it is characterized in that, termination at input shaft is provided with the input belt wheel by the off-load bearing, is provided with flower keyboard on the input shaft top.

The utility model will be imported end cap, input shaft connects transmission with flower keyboard, when the input of cycloid speed reducer has radial force, the input shaft of speed reducer only bears moment of torsion, do not bear radial load, improved the stress of input shaft, thereby reach the purpose of removal radial load, prolonged the working life and the use occasion of cycloid speed reducer.

The stress that the utility model has the advantages that input end improves, and can both use under various operating modes.

Description of drawings

Fig. 1 is former cycloidal planetary gear speed reducer structural representation;

Fig. 2 is a kind of cycloidal planetary gear speed reducer structural representation that input shaft is the off-load structure that has.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment

As shown in Figure 2, have a cycloidal planetary gear speed reducer structural representation that input shaft is the off-load structure for a kind of, a kind of have input shaft be the off-load structure cycloidal planetary gear speed reducer by body 1, input shaft 2, input end cap 3, cycloidal gear 4, pin wheel housing 5, pin tooth 6, output bearing pin 7, output shaft 8, output bearing 9, capacity eccentric bearing 10,

Input shaft 2 is installed in the centre of body 1 by eccentric bushing and capacity eccentric bearing 10, cycloidal gear 4 and capacity eccentric bearing 10 engagements, pin tooth 6 in the pin wheel housing 5 is installed in outside the cycloidal gear 4, the pin wheel housing 5 outer output bearing pins 7 of installing, input end cap 3 is installed in the front end of input shaft 2 by input shaft envelope and input bearing, output shaft 8 is connected with input shaft 2 by the input auxiliary bearing, on output shaft 8, be provided with two output bearings 9, input belt wheel 13 is installed by off-load bearing 12 in termination at input shaft 2, and flower keyboard 11 is installed on input shaft 2 tops.

During work, motor power reaches input belt wheel 13 by belt, input belt wheel 13 reaches input shaft 2 with moment of torsion by flower keyboard 11, by off-load bearing 12 and input end cap 3 radial force is reached pin wheel housing 5 and body 1 simultaneously, the input shaft of speed reducer only bears moment of torsion and bearing radial force not, thereby reaches the purpose of removal radial load.

Claims

1. one kind has the cycloidal planetary gear speed reducer that input shaft is the off-load structure, comprise body (1), input shaft (2), input end cap (3), cycloidal gear (4), pin wheel housing (5), pin tooth (6), output bearing pin (7), output shaft (8), output bearing (9), capacity eccentric bearing (10), input shaft (2) is located at the centre of body (1) by eccentric bushing and capacity eccentric bearing (10), cycloidal gear (4) and capacity eccentric bearing (10) engagement, pin tooth (6) in the pin wheel housing (5) is located at outside the cycloidal gear (4), the outer output pin axle (7) that is provided with of pin wheel housing (5), input end cap (3) is located at the front end of input shaft (2) by input shaft envelope and input bearing, output shaft (8) is connected with input shaft (2) by the input auxiliary bearing, on output shaft (8), be provided with two output bearings (9), it is characterized in that, termination at input shaft (2) is provided with input belt wheel (13) by off-load bearing (12), is provided with flower keyboard (11) on input shaft (2) top.