Dynamic gear clearance eliminating device

A dynamic and anti-backlash technology, applied in hoisting devices, portable lifting devices, belts/chains/gears, etc., can solve the problems of inability to ensure the synchronization of helical gears, complex structural design, etc., to reduce impulse and Vibration, simple structure design, cost reduction effect
CN104048017AInactive Publication Date: 2014-09-17CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Publication Date
2014-09-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a dynamic gear clearance eliminating device, belongs to the technical field of gear transmission and solves the problems of poor synchronism and complex structural design of the existing gear clearance eliminating structure. The dynamic gear clearance eliminating device comprises a driven gear (1), large magnets (2), a driven shaft (3), a driving gear (4), small magnets (5), a driving shaft (6) and a substrate (7); the large magnets (2) are embedded in the driven gear (1); the driven gear (1) is connected with the driven shaft (3); the small magnets (5) are embedded in the driving gear (4) connected with the driving shaft (6); the driven shaft (3) and the driving shaft (6) are both arranged on the substrate (7); outer ring polarities of the large magnets (2) and the small magnets (5) are opposite. The dynamic gear clearance eliminating device can be used for eliminating gear clearances dynamically, the precision of gear transmission is improved, the impact and vibration of a tooth profile are reduced, and the dynamic gear clearance eliminating device is compact in structural design, and easy to manufacture and mount, and is reduced in manufacturing and using cost.
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Description

technical field

[0001] The invention relates to the technical field of gear transmission, in particular to a gear dynamic anti-backlash device. Background technique

[0002] Gear transmission is the most commonly used transmission method. It is a mechanical transmission that uses the teeth of two gears to mesh with each other to transmit power and motion. It has the characteristics of compact structure, high efficiency and long life. However, due to the influence of factors such as gear machining accuracy and mechanical assembly accuracy, there will be a transmission gap between the gear teeth, which will affect the transmission accuracy and bring shock vibration between the gears. For precision equipment that requires high output accuracy, it will seriously affect its performance.

[0003] At present, in terms of eliminating gear transmission gaps, there are mainly two methods through mechanical structure adjustment: one is to fix the meshing gears through eccentric cente...

Claims

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