SU20782A1 - Parachute for mine double or two-frame stands - Google Patents

Description

For braking a double or two-frame stand equipped with spring-loaded lever grippers, levers that drive and act on the brake pads, they are equipped with protrusions facing the outside of the Cells, on which the protrusions, in the event of a cable break, can lean on the protrusions of the beams associated with the inner frame of the Clet and increase the pivot of the levers that press the pads against the guides of the shift screw.

; The drawing shows a General view of the cage with a schematic arrangement paratsu-ha.

The mine cage consists of two frames: inner 9 and outer 8, moving relative to each other in the vertical direction. To both sides of the outer cage, brake pads 3 are hinged, swiveled by levers 1, whose free shoulders in: the lower part of the cage are connected to spring 2, which tends to press these shoulders of levers to the bottom of the cage. The upper part of each lever 1 is connected to the working cable passing under the roller at the end of the crossbeam 5, which has mobility down the cage, and in the upward direction supported by the frame 9 and thus supporting it on the cable in the pressed position to the roof of the frame 8. On the downward branches of the levers 1 there are protrusions facing the inside of the frame 9 and intended to come in contact with the beveled ends of the beams 5 when they are lowered down.

In the event of a broken cable, the springs 2 expand and rotate the levers 1 with brake pads so that the wider lower part of the pads is pressed against the shaft guides. At the same time, the action of the cable supporting the beams 5 stops and these beams, together with the inner frame 9, are lowered downwards relative to the outer frame 8, already held up by the action of the levers 1 on the pads 3. The pressure of the beveled ends of the beams 5 on the protrusion of the levers 1 increases their rotation and depression 3 to guide rails. ,

Subject Patent a.

A parasite for mine double or two-frame stands with spring lever grips, characterized in that to increase the pressure of the brake pads 3 against the walls of the barrel, the ends of the levers 1 are fitted with protrusions 4, designed to take the pressure from the oblique cut ends of the beams 5 of the inner stand or frame 9 with its relative displacement at breakage of the cargo rope.