Guided jaw overrunning clutch

Abstract

The invention relates to a guided jaw overrunning clutch, which is characterized in that: the guided jaw overrunning clutch is provided with a rotating lead-in mechanism, a rotating lead-out mechanismand a fixed-point actuating mechanism controlling accurate motions of the lead-in mechanism; lead-out and lead-in motions of a shifting ring relative to a fixed ring are carried out along a fixed spiral track, are accurate in the axial direction and the circumferential direction, are not influenced by the rotate speed and the abrasion, have no need of assistance of enforcing power, and are spontaneously completed in the relative rotation; moreover, the working direction of the clutch can be changed and the special fixed-point actuating mechanism loses effectiveness by simply changing and locking a relative position of a guiding ring, so that the jaw overrunning clutch becomes a one-way or bidirectional overrunning clutch, a sliding device, a coupling or a simple clutch. The guided jaw overrunning clutch has the advantages of large transitive torque, high rotate speed, high reliability, no collision, impact resistance, small or zero no-load torque, long service life, low cost and smallvolume. Compared with all prior art and products comprising an SSS synchronizing clutch, the guided jaw overrunning clutch has the quality advantage except the field of scale division.

Description

technical field [0001] The present invention relates to a clutch device in the field of mechanical transmission, and other transmission devices such as jaw differentials including such a clutch device, especially but not only to a clutch device with the functions of transmitting torque and rotating overrun Jag type overrunning clutch. Background technique [0002] As the main / flow type in the prior art, the friction type overrunning clutch has the disadvantages of low carrying capacity, poor reliability, low transmission efficiency, difficult processing and assembly, high cost, easy wear, and small application range ("Development Status of Overrunning Clutch and Trends", Zhang Jizheng et al., The Third International Conference on the History of Mechanical Technology between China and Japan, Kunming, 2002, 398~403). The embedded, although has considerable potential to overcome the above shortcomings, but because of collisions, collision noises and inherent knowledge in the i...

AI Technical Summary

Problems solved by technology

Therefore, its inherent disadvantages have not been overcome

For example, the precision and process requirements of manufacturing and assembly are too high, the coaxiality requirements are too strict, the cost is too high, the axial movement of the moving ring is relatively large, the axial and radial dimensions of the core structure and the exclusive space are large, which is not easy Miniaturization, resulting in too narrow application range (mainly used in a small number of transmission shafts such as ships and large generator sets), and poor versatility

Moreover, the helix angle characteristics of the spline teeth lead to excessively high friction strength of the spline tooth surface, and at the same time, the effective utilization rate of the mechanical / mechanical potential of the material is significantly lower than 100%, which reduces its load-carrying capacity

In addition, due to the structure and working principle, its load-bearing capacity is not large enough, and it is impossible to realize two-way load-bearing and artificial control of working conditions, and the reliability of joint / fitting or separation in practice is not high enough.

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