SU386135A1 - 1 LIBRARY Krivoy Rog Mining Institute - Google Patents

Description

one

The invention relates to Tunneling shields with a notch of mass and can be used in the mining and coal industries to: carry out development workings.

Known additional organs of tunneling shields include a housing within which a pivoting telescopic rod with a milling disc is located.

The proposed actuator differs from those known in that handles are installed along the perimeter of the shield housing in the form of double hydraulic cylinders, one of which is shircued, hinged on the core of another hydraulic cylinder, equipped with a rock-breaking tool.

This embodiment improves the incision of the milling disc in the soda.

On fig. 1 shows a shield with the proposed executive body, side view; pas figs. 2 - a view of the PA “solitary body from the side of the bottom.

The executive body 1 includes a lifting and swiveling telescopic rod 1 with a milling disc 2 equipped with incisors and intended to cut into the rock and detach it from the mass vessel. Lifting and rotating Ntanga placed inside the body of the shield; for example, on a light sinking combine

4. Along the perimeter of the housing, the arms 5 are installed in the form of twin hydraulic cylinders. The rod of the hydraulic cylinder 6 is connected with the rod 7, fastened to the body of another hydraulic cylinder 8, equipped with rock-breaking tools 9. Hydraulic cylinders 8 serve to feed the rock-breaking tool to the bottom, and their hydraulic cylinders 6 - for radial movement across the face, as well as 10 these pressure unstable | CroO | Vli. All hydraulic cylinders are connected to the frame 10 attached to the body of the shaft.

The console is used to control the operation of the handles.

15 Executive oipran works as follows.

The cycle of work of the executive body of the tunnel shield includes the sequential operation of the system of handles 5, and the telesconic 0 staple / with a milling disc 2.

The handle system maintains an unstable roof, simplifies the insertion of the milling type 1 into the rock and together with it forms a round form of excavation. When on. 5 supplying oil to the hydraulic cylinder 8, the rock-destroying tool is fed to the bottom, and the oil is supplied to the hydraulic cylinder 6 by moving the tool radially from the periphery to the center of the bottom, removing the P0 | genera chips. Then handles with hydraulic cylinders.

I rotate to the periphery of the slab and perform the functions of supporting an unstable roof. All p} of ki 5 work, as described above, one after another or according to a certain scheme. It continues the processing cycle of the tele-boom rod 1 with the milling disc 2. With the help of the rod, the disk is placed in the advance notch formed by the arms and cut into the rock, its division due to separation.

After the treatment cycle has been smoothed, the grating shield moves one step of the movement and the cycle repeats.

Ire dme et. h o b ete n i

The actuator of the headboard, including the body, has a pivoting teleoconic bar with a milling disc inside KOTOiporo, characterized in that, in order to improve the incision of the milling disc into the rock, along the perimeter of the body u. which are pivotally connected to a bar fixed on the body of another hydraulic cylinder, equipped with a rock-breaking tool.