A flexible large-diameter gear transmission device

Abstract

The present invention relates to a flexible large-diameter gear transmission device, comprising a small gear and a large-diameter gear meshing with the small gear and a flexible force-applying mechanism. The small gear is installed in a gear seat. The force-applying mechanism consists of a force-applying component, a force-applying end and a force-applying terminal. The force-applying terminal contacts the outer shell pressure surface of the gear seat, and one force-applying end is connected with its force-applying point. The force-applying direction of the force-applying terminal coincides with the common normal line of the contact points of the tooth profiles of the two gears, and is always directed toward the large-diameter gear. The gear seat is placed in a guide rail that enables it to move linearly, and the gear seat reciprocates along the common normal line of the contact points of the tooth profiles of the two gears. The force-applying component always gives the gear seat a suitable pre-tightening force, so that the force-applying terminal forms a close contact with the outer shell pressure surface of the gear seat, so that the small gear makes a radial "follow-up" movement with the large-diameter gear, so that the force applied to the gear seat can always maintain a good and stable contact spot between the small gear and the large-diameter gear, so as to improve the load-bearing capacity and service life.

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