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Reversible Drive Reduction Mechanisms for Precision Power Transmission Systems

A transmission system and deceleration mechanism technology, applied in mechanical equipment, transmission devices, belts/chains/gears, etc., can solve the problems of high frequency of torque fluctuations, low efficiency of harmonic reducers, difficult reverse drive, etc., to reduce The weight of the mechanism, the effect of improving the quality and efficiency of force transmission, and high flexibility

Active Publication Date: 2016-05-25
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the planetary gear reduction method, the harmonic reducer has the disadvantages of low efficiency and large inertia
The main disadvantages of the gear reduction mechanism using the gear chain are the torque ripple caused by the meshing of the gear teeth and the difficulty of reverse driving due to the high friction
Especially when the drive shaft rotates at high speed, the frequency of torque fluctuation is high, and its influence is difficult to eliminate by force feedback control method
Therefore, the gear reduction method essentially has the disadvantages of backlash, large inertia, and difficulty in reverse driving, making this method generally used in precise motion transmission systems, but less used in precise force transmission systems

Method used

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  • Reversible Drive Reduction Mechanisms for Precision Power Transmission Systems
  • Reversible Drive Reduction Mechanisms for Precision Power Transmission Systems

Examples

Experimental program
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Effect test

Embodiment

[0022] Such as figure 1 As shown, a reversible driving reduction mechanism for a precision power transmission system is characterized in that it includes a first driving hub 2a, a second driving hub 2b, a first driving wheel 5, a second driving wheel 12 and an end effector Joint 8, the first driving hub 2a is connected to the second driving hub 2b through the first driving wheel 5, the second driving hub 2b is connected to the first driving hub 2a through the second driving wheel 12, and the first driving hub 2a is connected to the first driving hub 2a through the second driving wheel 12. The central axis of the first driving wheel 5, the end effector joint 8 and the central axis of the second driving wheel 12 are sequentially connected.

[0023] Between the first driving hub 2a and the first driving wheel 5, between the first driving wheel 5 and the second driving hub 2b, between the second driving hub 2b and the second driving wheel 12, between the second driving wheel 12 R...

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Abstract

The invention relates to a reversible driving speed reduction mechanism for a precision power transmission system. The reversible driving speed reduction mechanism for the precision power transmission system comprises a first driving hub (2a), a second driving hub (2b), a first driving wheel (5), a second driving wheel (12) and an end actuator joint (8), wherein the first driving hub (2a) is connected with the second driving hub (2b) through the first driving wheel (5), the second driving hub (2b) is connected with the first driving hub (2a) through the second driving wheel (12), and a center shaft of the first driving wheel (5), the end actuator joint (8) and a center shaft of the second driving wheel (12) are connected in sequence. Compared with the prior art, the reversible driving speed reduction mechanism for the precision power transmission system has the advantages of being free of back clearances, free of torque ripple, capable of carrying out reversible driving and the like.

Description

technical field [0001] The invention relates to a speed regulating mechanism, in particular to a reversible drive reduction mechanism for a precision power transmission system. Background technique [0002] Speed ​​governing mechanisms are widely used in mechanical power transmission systems. Common power transmission systems mainly include: gear transmission, tendon transmission, chain transmission, belt transmission and connecting rod transmission. In order to achieve functions such as speed regulation and increased driving force, gear transmission represents the most delicate way of reducing speed among all the above-mentioned power transmission systems. In gear transmission, there are two most classic reduction methods, namely planetary gear reducer and harmonic reducer. Standard planetary reducers have the disadvantage of backlash. Although this shortcoming can be solved by applying a preload, the existence of the preload will also increase the friction of the transm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H7/04
CPCF16H7/04
Inventor 李红兵
Owner SHANGHAI JIAOTONG UNIV