EXPANDING CLUTCH Russian patent published in 2006 - IPC F16D43/14 F16D11/16 F16D13/16 

FIELD: mechanical engineering.

SUBSTANCE: expanding clutch can be used in drives of machine installations for transmitting torque. Clutch has external driven half-clutch, internal driving half-clutch, shoes made in form of sectors with profiled protrusion at sides being fit to adjacent shoes and having cross-lateral profile of friction working part in form of arc. Support base on driving half-clutch is tightly fixed onto bushing which has ring-shaped protrusion and it forms radial gap with driven half-clutch. Shoes are disposed around bushing among support base, ring-shaped protrusion of bushing and rest members tightly fixed to support base and made with protrusions which form sustaining and guiding grooves for shoes, and with deepening for fixing elastic members. Springs have one end mounted at support member in deepening and the other end rests against profiled protrusions of adjacent shoes. Springs press shoes out of internal part of surface of driven half-clutch. Useful space for space is rationally used and influence of technological spread of parameters of elastic members onto characteristics of clutch is reduced.

EFFECT: simplified design; improved efficiency of operation.

8 cl, 3 dwg