SU470626A1 - Driving machine to form unloading slots - Google Patents

Description

one

The invention relates to the mining industry.

Tunneling machines are known for forming relief cages, including a running gear, an actuator with submersible hammers, an actuator drive and a feed mechanism.

The proposed machine is characterized in that the actuator is made in the form of a closed multi-bar hinged folding bar, in whose creeks drive chains with two rows of submersible hammers mounted on them are placed, with the internal and external rows of hammers moving in opposite directions. This makes it possible to obtain a closed discharge slot of a predetermined shape.

FIG. 1 shows the proposed maschine, side view; in fig. 2 - view along arrow A; in fig. 3 is a section along BB in FIG. 2

The machine includes a chassis 1, on a crawler track, pivotally folding actuator 2, made in the form of a bar, actuator 3 actuator, a strut 4, feed cylinders 5, fixed steady 6. The bar is attached to hollow pressure rod 8 by means of composite brackets 7 ; when moving brackets bar

folded into the transport position. Submersible hammers 9 with rigid pipes 10 are fastened with brackets 11 to chains 12 moving in a stream of bars. The air-water mixture is supplied to the hammers from the main pipeline through the coupling 13, the pressure bar 8, the hollow drive shaft 14, the collectors 15 and 16, the flexible sleeves 17 and the pipelines 10. From the actuator drive through the hollow drive shaft 14, the rotation is transmitted by an asterisk 18, and from it through the chain transmission 19 and the asterisk 20 - the asterisk 21, which tell the chain of 12 bar a forward movement.

Due to the movement of the chains of the inner and outer rows in opposite directions, the executive body of the machine is unloaded from the reactive moment.

The destructive products obtained when the hammers 9 are operated are captured by scrapers 22 fixed on chains 12 and carried to a receiving tray 23, from where they are transported using a pneumatic transport system (on

drawings not shown) are removed to the mine wagons.

Before starting work, the machine is installed in the development before slaughter at a predetermined rate and, using the spacer stand 4, spreads into the roof and the soil of the excavation. By activating drive 3 through a chain drive system, an impact hammer 9 is transmitted to the output circuit. When pressure is applied to the piston cavities of the cylinders 5, the actuator is driven along the guides to the side of the bottom and through the pressure bar 8, sliding in the fixed support 6, the head of the actuator is driven to the bottom.

As a result of the operation of the pneumatic impactors and their movement along a closed loop, corresponding to the output contour, an unloading gap is created.

Subject invention

A driving machine to form unloading slots, including a running gear,

an executive body, submersible pneumatic hammers, an actuator actuator and a feed mechanism, characterized in that, in order to obtain a closed discharge gap of a predetermined shape, the executive

The organ is designed as a closed, multi-rippled, folding bar in which creeks drive chains with two rows of submersible hammers mounted on them, with internal and

the outer rows of air hammers are moved in opposite directions.

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