Damping device for dynamoelectric precision transmission system

Abstract

The invention discloses a damping device of an electromechanical precision drive system, comprising a fixing ring, a power output shaft and a retaining ring; the power output shaft is in running fit with the fixing ring, the retaining ring is arranged between the power output shaft and the fixing ring in a clearance fit way, a wedge groove is arranged between the power output shaft and the fixingring and is internally provided with a damping rolling element and an elastic element, the radial size of the narrow end of the wedge groove is smaller than the diameter of the damping rolling element, one end of the retaining ring is provided with an axial open slot corresponding to the wedge groove, the damping rolling element is arranged at the narrow end of the wedge groove, the pre-tightening force direction of the elastic element is opposite to the rotating direction of the power output shaft, the power output shaft and the retaining ring are driven by a power input device to do synchronous rotation; the damping device can use self locking to overcome the interference from environment and other factors, has high driving precision, and can eliminate driving return difference to the utmost extent; furthermore, the device has no interference when running, thus being suitable for an occasion requiring high driving precision; moreover, the damping device can improve driving efficiency, reduce vibration and noise and prolong the service life of the drive system.

Description

technical field [0001] The invention relates to an electromechanical precision transmission device, in particular to a damping device for an electromechanical precision transmission system. Background technique [0002] Electromechanical precision transmission is widely used in various machines and instruments. With the development of production technology and the demand for high-quality products, especially the development needs of precision testing, processing and manufacturing, national defense, aerospace, etc., the transmission accuracy and backlash, that is, the tooth side Gap control puts forward higher requirements. [0003] In order to eliminate the meshing gap and motion hysteresis of gear pairs in precision transmission, damping devices are widely used. In the prior art, there are various structures for reducing the meshing clearance of the gear pair, but these prior art still have complex structure and assembly in terms of structural design or manufacturing proce...

AI Technical Summary

Problems solved by technology

In the prior art, there are various structures for reducing the meshing clearance of the gear pair, but these prior art still have complex structure and assembly in terms of structural design or manufacturing process, and the cost is high, which cannot completely solve the hysteresis of the gear transmission. question

In particular, it cannot overcome the interference outside the system. When an external additional torque is applied to the output of the system, it will destroy the motion mode and motion accuracy of the system.

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