Pin gear cycloid gear driving device and speed reducer thereof

A technology of gear reducer and cycloid gear, applied in the direction of gear transmission, transmission, belt/chain/gear, etc., can solve the problems of short life of the arm bearing, difficult to increase the size, and the transmission ratio cannot be less than 9, etc. To achieve the effect of improving position accuracy, improving stability and efficiency

Inactive Publication Date: 2004-11-03
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Cycloidal pinwheel planetary reducer is suitable for situations where the transmission ratio is greater than 9. Due to structural limitations, its transmission ratio cannot be less than 9; the W output mechanism (20) makes it difficult to increase the size of the arm bearing (6), which limits The load capacity of the arm bearing (6) is limited, and the short life of the arm bearing (6) is the weak link of this transmission; due to the influence of the tooth surface glued damage, the power transmitted by the cycloid planetary reducer generally does not exceed 100kW

Method used

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  • Pin gear cycloid gear driving device and speed reducer thereof
  • Pin gear cycloid gear driving device and speed reducer thereof
  • Pin gear cycloid gear driving device and speed reducer thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A needle-toothed cycloid gear reducer, its structure schematic diagram is as follows figure 2shown. The reducer is mainly composed of an input shaft (1), a rotating arm bearing (6), a balance weight (7), a circular wheel (2), pin teeth (3), a pin tooth bearing (8), and a hypocycloid wheel (4) 1. Output mechanism is composed of parts such as output shaft (5) and housing (10). The round wheel (2) is sleeved on the eccentric shaft of the input shaft (1) through the rotating arm bearing (6). The input shaft (1) is equipped with a balance weight (7) to balance the eccentric shaft. The pin teeth (3) pass through the pin teeth The bearing (8) is fixed on the casing (10), and the hypocycloidal wheel (4) is fixedly connected with the output shaft (5) into one body, and is supported on the casing (10) through the bearing. Input shaft (1) outer end is contained on the casing (10) by bearing I (15), and inner end is contained in output shaft (5) li by bearing II (16). When the ...

Embodiment 2

[0031] A two-stage pin-toothed cycloid gear reducer, its structure schematic diagram is as follows image 3 shown. The reducer is equipped with two series-connected pin-toothed cycloid translational gear transmission mechanisms. The epicycloid wheel (2) of the first-stage transmission mechanism is sleeved on the eccentric shaft of the input shaft (1) through the arm bearing (6). Above, the input shaft (1) is equipped with a balance block (7) to balance the eccentric shaft, the pin teeth (3) are fixed on the housing (10) through the pin gear bearings (8), and the hypocycloid wheel (4) and the middle The shaft (13) is fixedly connected, and the intermediate shaft (13) is supported on the housing (10) through bearings. The intermediate shaft (13) and its eccentric sleeve (9) constitute the input shaft of the second-stage transmission mechanism, and the second-stage swings outward The wire wheel (2) is set on the eccentric sleeve (9) of the intermediate shaft (13) through the rot...

Embodiment 3

[0033] A pin tooth cycloidal gear reducer with sprocket output, its structure diagram is as follows Figure 4 shown. The reducer is mainly composed of an input shaft (1), a bearing (14), a rotating arm bearing (6), a circular wheel (2), a pin tooth (3), a pin tooth bearing (8), a hypocycloid wheel (4), The output mechanism is composed of parts such as sprocket wheel (12), sprocket wheel bearing (11) and housing (10). The input shaft (1) is supported on the casing (10) through the bearing (14), the round wheel (2) is sleeved on the eccentric shaft of the input shaft (1) through the rotating arm bearing (6), and the pin teeth (3) pass through the pin The toothed bearing (8) is fixed on the casing (10), and the hypocycloidal wheel (4) is fixedly connected with the sprocket (12) into one body, and is supported on the casing (10) through the sprocket bearing (11). When the input shaft (1) rotates, the rotating arm bearing (6) drives the circular wheel (2) to move, and due to the ...

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Abstract

The transmission mechanism consists of inner gear, pin gear and hypocycloidal gear. The inner gear is set eccentrically to the hypocycloidal gear and meshed with the pin gear, and the pin gear is meshed with the hypocycloidal gear. The present invention features that the eccentric pin gear has fixed rotation shaft and its rotation axes are distributed in the cylindrical surface with the rotating axis of the hypocycloidal gear as center. The advantages of the pin gear-hypocycloidal gear mechanism includes raised position precision, raised transmission smoothness and efficiency, raised transmission bearing capacity, compact structure, low cost, etc.

Description

Technical field: [0001] The invention relates to a gear transmission mechanism and a reducer. Background technique: [0002] In the existing movable tooth double cycloid planetary reducer (such as Figure 7 As shown), two epicycloidal planetary gears (inner wheels) (2) with different numbers of teeth are connected together by a set of bolts, and each set of movable tooth rollers (needle teeth) (3) and its cage Combined into a movable planetary gear; one hypocycloidal wheel (4) is fixedly connected with the machine base and is fixed, and the other hypocycloidal wheel (ring gear) (4) is fixedly connected with the output mechanism and together with the output mechanism turn. The speed reducer can be regarded as an NN type planetary transmission, and the inner wheel (2), the roller set (3) and the hypocycloidal wheel (4) constitute a one-stage speed change, and a total of two-stage speed change. When the input eccentric shaft (1) rotates, the inner wheel (2) and movable tooth ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/28F16H25/04
CPCF16H1/32
Inventor 林菁
Owner SHANGHAI NORMAL UNIVERSITY
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