HOSE CONNECTING DEVICE Russian patent published in 2002 - IPC

FIELD: materials handling facilities. SUBSTANCE: invention elates to crane and manipulator plants with reciprocating extensible sections of telescopic booms furnished with hydraulically operated mounted working members, namely, to devices of said plants for connection of hoses from fixed to movable end sections of telescopic boom. Device has tension drum with spiral pull-back spring for winding the hoses installed on cantilever shaft secured on fixed section of boom and two manifolds with threaded adapters for butt-joining stationary pipelines and hoses connected through two- channel rotary connector. Design of tension drum, cantilever shaft, manifolds with threaded adapters, two-channel rotary connector and spring are optimized as well as layout and scheme of fastening of device and spontaneous slipping off of hoses from drum in process of operation is prevented. Simplified design, reduced axial dimensions and improved weight characteristics and other performance properties of applied device are proved by calculations and experimental checking of main decisions aimed at optimization of design. EFFECT: improved reliability in operation. 9 cl, 44 dwg