Annular V-shaped groove clutch

Abstract

The invention discloses an annular V-shaped groove clutch. The annular V-shaped groove clutch is few in component and easy to control. The clutch comprises an inner clutch left end part, an annular return spring, an inner clutch middle part, a clutch middle part, an outer clutch middle part and an outer clutch right end part which are sequentially arranged; the outer diameter of the inner clutch middle part is smaller than the outer diameter of the annular return spring, the opposite friction face of the inner clutch left end part and the inner clutch middle part, the opposite friction face ofthe inner clutch middle part and the clutch middle part, the opposite friction face of the clutch middle part and the outer clutch middle part and the opposite friction face of the outer clutch middle part and the outer clutch right end part are provided with engaged annular V-shaped grooves. An axial spline is arranged on the circumference of the left end part body, the inner side of an axial hole of the outer clutch right end part is provided with a spline groove matched with the axial spline, the clutch can achieve control over two stations of locking and brake of a planetary gear mechanism only through one hydraulic execution mechanism, the structure is simple, and control is easy.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, and more specifically relates to a clutch. Background technique [0002] Clutches are common components in mechanical transmissions that can disengage or engage the transmission system at any time. With the continuous advancement of technology, the V-groove clutch has been widely used due to its advantages of large transmission torque and small belt torque. [0003] At present, J H Kerr has proposed a V-groove clutch composed of middle parts and parts at both ends. For the two working conditions of braking and locking of the planetary gear mechanism, three kinds of locking and braking are respectively controlled by the inner and outer friction couples. clutch arrangement. One is to use two independent clutches inside and outside, and the friction couples are composed of middle parts and two end parts; the other is to use a structure in which the two clutches share one end part, ...

AI Technical Summary

Problems solved by technology

[0004] In the first arrangement, each clutch needs a hydraulic actuator and a return spring, and the structure is relatively complicated; in the second arrangement, although the inner and outer clutches share a left and right end part, the inner clutch has two friction pairs, and the outer clutch has two friction pairs. The clutch has only one friction pair, and the friction torque it can provide is relatively small, and the braking torque is often greater than the locking torque, which is obviously different from the actual situation.

Although the third layout scheme can solve the problems of the second layout scheme, it requires a large number of parts, the structure is still relatively complicated, and the control is difficult

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