SU1273576A1 - Arrangement for withdrawing a mine support - Google Patents

Description

UNION OF SOVIET

SOCIALIST

REPUBLIC.,. SIL, 1273576 A1 ί5ϋ 4 E 21 D 13/04 __________________________

USSR STATE NOMINATION FOR CASES OF THE INVENTIONS AND OPEN

DESCRIPTION OF THE INVENTION

TO AUTHOR'S CERTIFICATE

(21) 3873150 / 22-03 (22) 02.01.85 (46) 11/30/86. Bull. No. 44 (71) All-Union Research and Design Institute of Mining Engineering (72) M.F.Kochura and M.S. Shupletsov (53) 622.289.04 (088.8) (56) Support and equipment for attaching mine workings. M., Central Scientific Research Institute of Engineering and Coal Engineering, 1976, pp. 75-78.

USSR copyright certificate No. 853112, cl. E 21 D 13/04, 1979.

(54) DEVICE FOR REMOVING FASTENERS (57) The invention relates to the mining industry and allows to increase the productivity of removing lining (K) by reducing the preparatory and final operations. For this, the device, including the chassis 1 with the platform, is equipped with a sleeve 3, in which a hydraulic stand (HS) is coaxially placed 5. Length. the sleeve 3 is selected equal to or greater than the length of the HS 5 in a compressed state. The sleeve 3 is pivotally connected by means of a swivel bracket 2 and a hydraulic cylinder of rotation 4 with the chassis

I. When you turn on the hydraulic cylinder 4, the sleeve 3 with GS 5 occupies a vertical position. Turn on the GS 5 and move the sleeve of the HS 5 relative to the sleeve 3 until the stop of the heel 11 in the soil of the mine and traverse (T) 6 in the Upper C. The spacer force is created between the soil and the roof of the mine and the upper frame of the extracted frame is held. Flexible elements 9 with grippers 10 are fixed on the racks of the frame to be removed and, using the hydraulic cylinder 7, they are removed along the guide rollers 8. When the GS 5 is turned on for reduction, the upper shaft K is lowered by T 6. After stopping T 6, the heel is lifted into the sleeve 3

II. The device is moved towards the fixed space, the elements K are removed and the cycle of work is repeated. This excludes operations to transfer the device to the transport position and vice versa. 3 ill.

The invention relates to a device for extracting lining from redeemable underground mine workings.

The aim of the invention is to increase the productivity of works on the extraction of lining by reducing the preparatory-final operations.

Figure 1 schematically shows the device in its original position, General view; figure 2 is the same, in the working, t position; in Fig.Z - the same in the transport position.

The device for extracting the lining consists of a running gear 1, on which a swivel bracket 2 with a sleeve 3 is pivotally fixed, the rotation of which in the vertical plane is made by a turning hydraulic cylinder 4 pivotally attached to it. The hydraulic stand 5 is coaxially placed in the sleeve 3 and pivotally connected with the upper end to the traverse 6, on which the hydraulic cylinder 7 is installed to extract the supports, the guide rollers 8 and the flexible elements 9 with grippers 10. The lower end of the hydraulic stand is pivotally connected to the fifth 11. The length of the sleeve 3 is selected equal to or slightly greater than the length of the hydraulic stand 5 in a compressed state.

A device for extracting lining works as follows.

When the hydraulic cylinder 4 is turned on for extension, the sleeve 3 with a hydraulic stand 5 is rotated relative to the horizontal axis to a vertical position and with a fully reduced hydraulic stand, the device takes its initial position. When the hydraulic stand 5 is turned on for extension, the sleeve of the hydraulic stand 5 is moved relative to the sleeve 3 until the heel 11 abuts against the working soil, and then the traverse 5 is moved all the way to the roof supports, which creates a spacer force between the soil and the working roof and retaining the upper frames. Thus, the device occupies a working position. The flexible elements 9 are secured by captures 10 to the racks of the removed mounting frame 1273576 * and they are removed by means of the hydraulic cylinder 7. When the hydraulic stand 5 is turned on, the upper roof support is lowered to reduce, which is supported by the traverse 6. After the traverse 6 rests against the upper end sleeve 3 is the rise of the heel 11, and the device acquires its original position.

I® In the initial position, the device is moved towards the fixed space, the elements of the removed lining are removed and the cycle of work is repeated.

If necessary, the device from the initial position is transferred to the transport position by turning on the hydraulic cylinder 4 and, under its own power, is moved to a new generation.

2® The use of the proposed device for the extraction of lining allows you to exclude operations on the preparation of sections of soil under the supporting surface of the heel at levels that do not coincide with the level of the caterpillars, as well as operations on transferring the device to the transport position and back to working when moving to removing each of the following mounting frames .

Claims (1)

The invention relates to devices for extracting lining from redeemable underground mine workings. The aim of the invention is to increase the productivity of the work on the extraction of lining by reducing the preparatory and final operations. Fig, schematically shows the device in the initial position, a general view; figure 2 - the same, in the working position; fig.Z - the same in the transport position. The support removal device consists of a chassis 1, on which a pivot arm 2 is hinged with a hub 3, which is rotated in a vertical plane by a pivot cylinder pivotally attached to it. The hydraulic column 5 is coaxially placed in the sleeve 3 and pivotally connected by the upper end to the cross-bar 6, on which the hydraulic cylinder 7 is installed to remove the support struts, the guide rollers 8 and the flexible elements 9 with the grips 10. The lower end of the hydraulic column is pivotally connected to the fifth I1. The length of the sleeve 3 is chosen to be equal to or slightly longer than the length of the hydraulic column 5 in the compressed state. The support fixture operates as follows. When the hydraulic cylinder 4 is turned on, the sleeve 3 and the hydraulic column 5 rotate relative to the horizontal axis to the vertical position and the device takes the initial position with a fully reduced hydraulic column. When the hydraulic post 5 is turned on, the hydraulic post 5 moves relative to the sleeve 3 until the stop 11 of it stops into the working soil, and then the traverse 5 moves all the way to the top of the support, which creates an expansion force between the soil and the roof of the excavation and holds the top removable frame. Thus, the device occupies a working position. The flexible elements 9 are gripped by the grips 10 on the posts of the removable fastening frame and, by means of the hydraulic cylinder 7, are removed. When the hydraulic column 5 is turned on, the top support is lowered to reduce, which is supported by the cross bar 6. sleeve 3 is lifting pin 11, and the device acquires its original position. In the initial position, the device is moved in the direction of the fixed space, elements of the extracted support are removed, and the work cycle is repeated. If necessary, the device is transferred from the initial position to the transport position by switching on the hydraulic cylinder 4 and under its own power moves to a new development. The use of the proposed lining removal device allows to exclude operations for preparing the soil plots for the supporting surface of the spot when the levels of these sections do not coincide with the level of the tracks, as well as the operation to transfer the device to the transport position and back to the working one when going to the next mounting frame . Claims An apparatus for removing lining, including a running gear with a platform, a hydraulic rack with a cross-arm, a turn cylinder, a swivel arm of a hydraulic post, guide rollers, flexible elements with grippers and a support cylinder mounted on the crossbar, which is designed so that, in order to improve performance works on the extraction of lining by reducing the preparatory and final operations, the device is equipped with a sleeve in which the hydrocall is placed coaxially, and the sleeve is made It is not less than the minimum length of the hydraulic post and is hinged by means of a swing arm and a turn hydraulic cylinder with a chassis.