SU1691490A1 - Powered mine roof support - Google Patents

Abstract

The invention relates to the mechanization of sewage treatment works in coal mines and is intended for the development of steep coal seams along strike with roof control by caving or stowing. The goal is to increase the reliability of fastening when working with unstable roofs. The support consists of a base beam (B) 1, made of links. 8 openings B 1 are installed the bases of 8 sections 5, connected by the lower A – A gg 1 18 NX 4 SSSSX X of ini tions, which are irradiated with axial hydraulic jacks (DG) 13 of movement with the base 5 1 and through hydraulic legs 6 with the overlaps 7. The latter are pivotally connected to one end of the upper HD 12. At the other ends of the HD 12 there are protective covers 14, pivotally connected to the upper ends of the telescopic fences 9 made of links 10 of the latter are interconnected by resistance mechanisms 11. The lower ends of the mechanisms 11 are pivotally attached to the bump ends B 1 between the bump posts 6 and the lower ends of the barriers 9 attached to the bumps ends. The covers 7 are provided with guide collars 15 with holes in which the protective covers 14 are placed with the possibility of longitudinal movement. When moving the fences 9 together with B 1 relative to the overlappings 7 of the unstressed sections 5, the housings 14 GD 12 move in the holes of the clamps 15. This ensures the protection of the rods DG 12 and 13 from bending loads and possible Changes in the expansion of the fences 9 in accordance with the changes in the height of the support sections with fluctuations in the thickness of the reservoir being withdrawn 4 sludge. А-А г 5 11/1 18 (Л о Ю Ј Ю о

Description

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Claims (1)

Claim Mechanized support, including a base beam made of links, in the openings of which section bases are connected, connected by lower hydraulic jacks of movement to the base beam and through hydraulic racks - with ceilings pivotally connected to one end of the upper hydraulic jacks, telescopic barriers made of links connected to each other stability mechanisms, the lower ends of which are pivotally attached to the obstructed ends of the base along with the lower ends of the fences, which is different. what. in order to increase the reliability of fastening when working with unstable roofs, the upper hydraulic jacks are equipped with protective covers fixed at their other ends, pivotally connected to the upper ends of the fences and stability mechanisms, and the ceilings are equipped with guide clamps with holes in which protective covers are placed with the possibility of longitudinal movement. (Riga 2 Compiled by V. Aksenov Editor M. Bandura Tehred M. Morgenthal Corrector M, Pozho Order 3911 Circulation Subscription VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.