POWERED SUPPORT UNIT Russian patent published in 2003 - IPC

FIELD: mining, particularly, powered support of breakage faces in underground mineral mining. SUBSTANCE: POWERED SUPPORT UNIT INCLUDES BASE, MOVABLE MECHANISM, ROOFING HINGED WITH CANTILEVERS, HYDRAULIC PROPS HINGED WITH ROCKERS WHICH ARE HINGED BY MEANS OF PINS IN BORES OF ROOFING FOR ENGAGEMENT WITH CANTILEVERS AND SECURED WITH HELP OF AXLES. Roofing is made with recesses. Axles have eccentrics located for turning of axle and locking of eccentric between recess walls. Each rocker has sockets accommodating axle ends. Pins are located in roofing bores for their withdrawal from roofing bores with axle displacement through value of their entering the rock sockets. EFFECT: higher reliability, reduced labor input and lost time in mounting- dismantling operations. 4 dwg