Follow-up parallel roller overrunning clutch

Abstract

The invention discloses a follow-up type parallel roller overrunning clutch, which comprises an outer ring, an inner ring and a rolling body, and also includes a supporting roller assembly, and the supporting roller group of the supporting roller assembly includes at least the rollers arranged in parallel in the radial direction of the overrunning clutch. The outer support roller and the inner support roller, the outer circle of the outer support roller and the outer circle of the inner support roller are all in contact with the outer circle of the adjacent roller, and the outer support roller and the inner support roller are arranged in a manner that can move in the circumferential direction of the overrunning clutch. The invention simplifies the processing and installation process, improves work efficiency, reduces processing costs, and ensures processing and assembly accuracy; more rolling elements can be set to ensure the stability, stability and load-bearing capacity of the transmission; moreover, the rolling elements have radial Appropriate constraints can avoid large wear in the overrunning structure, and ensure the service life, running accuracy and safety of use.

Description

technical field [0001] The invention relates to a clutch device for motor vehicles and mechanical transmission, in particular to an overrunning clutch. Background technique [0002] The overrunning clutch is a basic component that appears with the development of power products. It is an important component used for power transmission and separation between the prime mover and the working machine or between the driving shaft and the driven shaft inside the machine. It is mainly a device with a self-clutching function by utilizing the speed change of the main and driven parts or the transformation of the rotation direction. In practice, most of them are clutches that use the meshing of teeth, the meshing of ratchet-pawl, or the wedging action of rolling elements and wedges to transmit motion or torque in one direction. [0003] Existing overrunning clutches generally include an inner ring, rolling elements and an outer ring. The structure adopts the structure of the outer ri...

AI Technical Summary

Problems solved by technology

The structure adopts the structure of the outer ring on the inner ring, and the meshing cavity is formed between the two, and the rolling body is located in the meshing cavity to form an overrunning clutch structure; whether the rolling body adopts a ball type or a roller type structure, in the overrunning clutch If the limit seat and the elastic element are set on the inner or outer ring of the inner ring, it needs to occupy a large space in the circumferential direction, so that the number of rollers (balls) cannot be set more

Therefore, the existing overrunning clutch is not stable enough to run smoothly, and its load capacity is poor; for applications that require heavy loads, only its radial dimension must be increased, resulting in a larger size of the transmission equipment, which cannot meet the needs of modern mechanical equipment

Another is that the elastic element acts on the rolling body and restricts its reverse engagement in the circumferential direction. It acts on a point or part of the rolling body, which cannot achieve balance, making the rolling body easily deflected, resulting in jamming or poor movement. , resulting in mechanical failure

At the same time, the existing overrunning clutch needs to process the limit seat and install the elastic element, so that the processing efficiency of the overrunning clutch is low, the installation is complicated, and the cost is increased.

[0004] In order to solve the above problems, there is an auxiliary roller structure that is independent of the outer ring and the inner ring, which is used to maintain the distance between the rolling elements, cancel the elastic element and the limit seat of the prior art, and avoid the outer ring or inner ring. The limit seat is directly processed on the top, which simplifies the processing process, improves work efficiency, reduces processing costs, ensures processing and assembly accuracy, prolongs the service life and ensures the transmission effect, and the related parts are easy to replace after damage, reducing maintenance and use costs; at the same time, increasing However, the auxiliary roller generally adopts a single-roller structure, and there is no constraint on the radial direction of the rolling elements. The rolling elements are prone to abnormal wear during high-speed operation, and there is a danger of jamming when overtaking, resulting in ACCIDENT

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