Wedge type over running clutch

Abstract

The present invention discloses a wedge type overrunning clutch, comprising an eccentric wheel and a disk shaped driven sleeve which are coaxially arranged and a middle ring which is mounted on the eccentric wheel. A gap is formed between the middle ring and the driven sleeve, and the inside of the gap is provided with at least one wedge which is arranged on the eccentric wheel by a bracket and alimiting device and has certain moving stroke towards the eccentric wheel at the eccentric wheel rotation direction. The overrunning clutch with large bearing capacity is more applicable to a high-power machine; the overrunning clutch has the advantages of less components, simple structure and easy processing. The overrunning clutch can be used not only for a lathe, but also for an engine or other machines requiring the overrunning clutch.

Description

technical field [0001] The invention relates to a clutch, in particular to an overrunning clutch, which realizes combination and separation between a driven sleeve and an eccentric wheel by means of a wedge. Background technique [0002] Overrunning clutches or one-way clutches are widely used in various machine tools. It can be used to convert the reciprocating swing of the rocker of the pulse generating mechanism into an output mechanism of unidirectional pulsating rotary motion. Its working ability determines the efficiency of the whole machine, the size of the output torque and the length of the durable life. [0003] In the currently applied pulsating continuously variable transmission, the roller type overrunning clutch has a sensitive response, the roller rotates freely in the raceway, wears evenly, and can still maintain a cylindrical shape after wear, and the short-term overload roller slip will not damage the clutch. It has been widely used for its features such ...

AI Technical Summary

Problems solved by technology

[0003] In the currently applied pulsating continuously variable transmission, the roller type overrunning clutch has a sensitive response, the roller rotates freely in the raceway, wears evenly, and can still maintain a cylindrical shape after wear, and the short-term overload roller slip will not damage the clutch. It has been widely used for the characteristics of torque reduction and still can work normally; but its high contact stress and low load-carrying capacity are not suitable for high-power transmissions

Another CK series wedge type overrunning clutch on the market, its structure and performance are in the stage of perfection, its main principle still comes from the roller type overrunning clutch, which consists of outer ring, inner ring, roller, wedge, spring, retaining ring and other components, the inner ring needs to be processed into a number of concave circular groove shapes, and the wedge shape is mostly a special shape, such as fist shape, peach shape, shoe shape and other complex shapes, its bearing capacity and wear resistance are better than rolling Column type overrunning clutch, but its processing complexity is relatively high

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