Internal star wheel overrun clutch

Abstract

The invention discloses an internal star wheel overrun clutch. The internal star wheel overrun clutch comprises an outer ring, an inner ring and rolling columns, wherein wedge grooves are arranged on an outer circle of the inner ring, and meshing spaces used for meshing or separating the rolling columns are jointly formed by the wedge grooves and the inner circle of the outer ring. The internal star wheel overrun clutch further comprises supporting shafts, and the supporting shafts are arranged correspondingly to the rolling columns one by one in the circumferential direction, are detachably fixed relative to the inner ring and at least in the circumferential direction and provided with elastic pieces used for applying pretightening force towards to the meshing direction to the rolling columns. Since the supporting shafts which are detachably fixed relative to the inner ring and at least in the circumferential direction are utilized to apply the pretightening force to the rolling columns, and the wedge grooves used for forming the meshing spaces are arranged on an internal star wheel, the internal star wheel overrun clutch is directly shaped from forging, processing process is simplified, working efficiency is improved, and processing cost is lowered; adjustment to the rolling columns in the circumferential direction during processing is possible, processing and assembling accuracy is guaranteed, service life is prolonged, and transmission effect is guaranteed; and radial size of the internal star wheel overrun clutch in above structure is not limited, and bearing capability is improved.

Description

technical field [0001] The invention relates to a clutch device for motor vehicle 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 ratchets and pawls, or the wedging action of rollers and wedges to transmit motion or torque in one direction. [0003] The roller overrunning clutch is widely used in higher speed occasions because of its uniform and stable transmission and large load capacity; the roller overrunning clu...

AI Technical Summary

Problems solved by technology

For the inner star wheel overrunning clutch, the limit seat is generally located on the inner ring and formed in one piece, the processing process is more complicated, which not only reduces the work efficiency, but also makes the processing cost higher

Due to the limitation of processing conditions, the axial length of overrunning clutch is generally narrow, and it is impossible to arrange more rolling elements in the axial direction, while the roller is a more important bearing part than the clutch. The limitation of the number seriously affects the performance of overrunning clutch. Carrying capacity; makes the use of overrunning clutches limited

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