SU112972A1 - Mobile metal lining for steeply dipping seams - Google Patents

Description

Designs of movable metal supports for steeply dipping layers, consisting of sections (frames), which move along the strike of the formation by swinging them under the action of gravity, are known.

The main disadvantage of these supports is the difficulty of their movement. The proposed support eliminates this disadvantage.

A feature of the described my support is the implementation of sections (frames) suspended one to another by means of flexible or hinged connections, forming a hinged parallelepiped. Due to this, when moving the supports from the top to the bottom, successive swings of each section are carried out under the action of gravity along the strike of the formation with a slight slipping along the dip of the formation.

FIG. Figures 1 and 2 depict the described movable metal lining.

The support consists of sections / with posts 2, installed along the strike and interconnected at the soil and the roof with rigid metal elements 3.

Racks are suspended from the sections on steel ropes (or chains) 4 attached to the support frame. Before the beginning of movement, the frame is shifted forward by one step. The support itself is moved from top to bottom sequentially from one section to another.

Pneumatic jacks with SGK locks are used as vertical struts, with the bases of the struts facing the lower side of the reservoir and are pneumatic cylinders, the pistons of which support the sliding parts of the struts. The struts are spaced between the upper and lower sides of the excavation by compressed air coming through the hoses 5. To strengthen the struts, there is a locking device similar to a wedge lock of the SGK rack.

When lowering the supports for one or two sections, the lower sections are disconnected from the ropes (or chains) and delivered to the top of the lava to build the supports.

The support is moved in sequence. For this purpose, both racks of one section are freed from thrust, after which the section, like a swing, moves under the force of gravity along the strike of the formation with a slight slipping along the dip of the formation. In the new position, the section again spreads out on the side rocks.

Subject invention

Mobile metal lining for steeply dipping seams consisting of sections (frames), which move along the strike of the formation by swinging them under the force of gravity, characterized in that, in order to facilitate their movement, the sections (frame) of the lining are made in a dim to the other by means of flexible or hinged connections, forming hinged parallelepipeds and moving from top to bottom by successive swinging of each section under the force of gravity along the strike of the formation with a slight slipping along the pad the formation.

FIG. one

FIG. 2 j