SU1408079A2 - Apparatus for remote setting of wedging support - Google Patents

Abstract

The invention relates to the mining industry, in particular to devices for remote erection of wedge supports. The goal is to increase the reliability of the device during the erection of wedge lining in the conditions of work on the bed. For this, the expansion mechanism of the device has a collet holder. It is made of a housing (K) 9 with a cavity 10, a collet 11 with figured springs 12, a rod 14 with end stops 15 and 16, and with a protrusion 17. The latter has a biconical shape of the surface in the middle part. In the cavity 10 K 9 a cylindrical spring 18 is placed, with which the end stop 16. The collet holder is rigidly connected with the shoe 7 of the spacer mechanism by means of a cup 19 and a washer 20. Draw wedge support at the moment of expansion between the side rocks by the force of the stem of the hydraulic cylinder rod 14, the holder is mixed with respect to K 9 and collet And, overcoming the resistance of the shaped springs 12. 7 Il. se (L s

Description

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; The invention relates to the mining industry, in particular to devices for remote erection of wedge support, and is an improvement of the invention according to the author. St. No. 883476.

The purpose of the invention is to improve the reliability of the device during the erection of the line support in the conditions of work on a flat steep drop.

i FIG. 1 shows a device with a collet holder, top view; in fig. 2 - 1-Tsang holder, incision; in fig. 3 - Aazrez AA in FIG. 2; in fig. 4 is a diagram of the transportation of wedge lining to the place of construction; in fig. 5 shows the node I in FIG. four; in fig. 6 is a schematic of a thrust support at the time of its construction; in fig. 7 - node II in FIG. 6

The device contains a base 1, vertical walls 2, movable stops 3 with hydraulic jacks of the backwater 4, supports and an expansion mechanism with hydraulic cylinder 6, shoe 7 and collet holder 8.

I Collet holder contains body 9 | with cavity 10, collet 11 with figured sleeves 12, lamellar springs 13,

froK 14 with end stops and 16 and with a protrusion 17 having a biconical shape of the surface and a cylindrical spring 18. The holder is rigidly connected to the shoe 7 of the spacer mechanism by means of a cup 19 and a washer 20. 11 is kinematically connected to the housing 9 by means of a plate spring I. The rod 14 is kinematically connected by means of a biconical protrusion 17 to a figured spring 12 of the collet 11, and by means of an end stop 16 to a cylindrical spring 18 located in 10 of the body 9.

The device works as follows.

On the ventilation drift, in the cassette of the device for remote erection of wedge lining, formed from the sides by walls 2, from the ends, by movable lugs 3 and shoe 7, and from below by hooks 5, wedge lining is placed in the transport position (Fig. 4) and transported its lava from the top down to the place of construction. After delivery, the lining in place of its erection in the hydraulic system of the device is supplied under pressure emulsion or oil. At the same time, the rod of the hydraulic cylinder 6 is displaced, mixing the upper element of the wedge lining along the lower one up to the expansion of the wedge lining between the lateral rocks with a given initial strut, and the movable lugs 3 keep the lower element of the wedge lining from moving downwards under the force of the upper member’s friction over the lower element. After reaching a predetermined initial spreading of the wedge support between the lateral rocks, the hydraulic jacks of the backwater 4 automatically switch to a drain, with the result that when the device moves from the bottom up to the ventilation drift, the movable stops 3 freely open. The principle of the holder is to

next. When the wedge lining device is placed into the cassette of the device, the upper element 21 is placed on the holder with a certain force p. In this case, the rod 14, abut against the limiter 15

0 to the bottom of the recess 22, moves from the initial (leftmost) position from left to right by the value a and presses the biconical protrusion 17 of the collet 11 to the walls of the recess 22. More than the value of a, the rod 14 cannot move, as the figured springs 12 count in compression when the movement of the rod 14 from left to right with a force greater than the value of p. As a result, under the action of forces p create between the holder and

0 by the walls of the recess 22, the friction force is not less than the weight force of the upper element 21 of the wedge lining, which allows the latter to keep from spontaneous slipping along the lower element at the time of transporting the wedge lining to the place of its erection. Between the end of the upper element 21 and the shoe 7 of the spacer mechanism of the device, a gap is left. When erecting the wedge lining, at the time of its spread, between the lateral rocks, the force p of the rod of the hydraulic cylinder 6 of the spacer mechanism of the device, which exceeds the force r the holder moves relative to its housing 9 and the collets 11 from left to right by a value in, overcoming the resistance of the figure springs 12. At the end of the way to the figure springs 12 and the collet And returns to the original position and the holder rolls in the recess l ikvidiruets.

After the erection of the wedge support, the device returns to the ventilation shield behind the new set of wedge support. At the time of the removal of the holder from the top element, it is re-created in the recess 22 due to movement of the rod 14 from the left to the left under the action of the cylindrical spring 18, but the magnitude of this spread is insignificant and easily overcome.

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After removing the holder from the recess 22, the stem 14, under the action of the spring 18, takes the initial, leftmost position. At the same time, when the largest cross-section of the biconical protrusion 17 has the smallest gap between the figured springs 12, the collet 11 opens, the limit resistance of the leaf springs 13. After taking the rod 14 of the leftmost position, the collet 11 under the force of the plate springs 13 also

occupy their original position and the holder is ready for a new work cycle. The springs 18 count on creating such an effort to move the stem 14 from right to left in order to overcome the bending resistance force of the leaf springs 13.

Claims (1)

Invention Formula A device for remote construction of wedge lining according to ed. St. No. 883476, characterized in that, in order to increase the reliability of the operation of the device during the construction of wedge lining in the conditions of work on steep dip beds, expansion The mechanism of the device is equipped with an iai.,; l1 holder, which is made across the body with a cylindrical spring placed in its cavity, rigidly connected to the shoe of the spacer mechanism by means of a collet glass with spring springs, connected to the body by means of plate springs from the rod with a protrusion, in the middle part of the surface there are bicoidal forms, n with two end terminators, one of which is installed in the case with the possibility of multimoderation with a cylindrical spring, |; and covered curly spring collet. 4 S 2 S g 7 ff eleven // / / / / a7 I L- I I G V.T kv II .l Phi.1 ll igz 22 H FIG. five five figl 21 21