SU1388554A1 - Impact device for breaking large lumps of coal and rock - Google Patents

Abstract

The invention relates to the extraction of minerals by the underground method and makes it possible to increase the efficiency of crushing by increasing the impact energy and increasing reliability. The device includes a housing, a hinge cylinder associated with it (HZ) 10, spring-loaded swivel grips (PZ) 17, 18 with inclined planes, a striker 22 with a head 21, and movement stops of the striker 22. In the case there is a frame associated with the HZ rod 10, columns (c) and guides 24 on which the head 22 22 is movably mounted, spring-loaded with elastic elements. They are placed on each of the guides 24. On the HZ 10, openers 23 with spherical surfaces are rigidly fixed, and on the frame there are hinges PZ 17, 18. An actuator 28 is movably mounted on K, having shock absorbers 30 and travel stops 31. When fed into the rod cavity HZ 10 of the working fluid PZ 17, 18 moves upwards. The dimple 22 compresses the elastic elements prior to the beginning of the contact of the inclined planes PZ 17, 18 with the openers 23. As a result, the head 21 is released and the hammer 22 22 hits the organ 28. At the same time, K hits the rock. 5 silt, with (L

Description

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The invention relates to the extraction of minerals by the underground method, namely with the help of combines.

The purpose of the invention is to increase the efficiency of crushing by increasing the impact energy and reliability.

FIG. 1 shows the device, a general view; in fig. 2 - the same cross section; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows section B-B in FIG. 2; in fig. 5 is a section bb In figure 3.

The device consists of a harvester 1, on which the stop 2 is rigidly mounted, one is pivotally connected with a finger 3 one End of a regulating hydraulic cylinder 4, the other end is pivotally connected by a finger 5 with an eye 6 of the bracket 7 on the last case 8. The hydraulic cylinder is hingedly attached 10 using the finger 11 in the lugs 12, the other end of the hydraulic cylinder 10 is attached by the finger 13 to the movable frame 14, to which also the clamps 17 and 18 are spring hingedly attached by means of the fingers 15 and 16 and spring-loaded with elastic plates 19 and 20. There are grips 17 and 18 with a head 21 of a striker 22 and a disclosure unit 23. Mounted on a hydraulic cylinder 10.

The head 22 is movably mounted on guides 24 with shoulders 25 entering the cups 26 mounted on the lid 9. Elastic elements 27 are mounted on the guides 24 with the possibility of their charging by a hydraulic cylinder 10 and making an impact on the actuating member 28 with a mass 23 -

It is mounted on columns 29 and provided with shock absorbers 30 and travel stops 31c with fastening 32.

The operation of the percussion device on the combine for crushing large pieces of rock and coal is carried out as follows.

Combine 1, moving along a conveyor (not shown), produces coal mining. When a slab or roof collapses, large pieces of rock or coal are moved with a conveyor to combine 1 or the combine itself approaches a large piece of rock or coal. The pump of the combine 1 or the support is switched on. The regulating hydraulic cylinder 4.casing B is fed down to contact of the executive body 28 with large pieces of rock. Working fluid

is given in the piston cavity of the hydraulic cylinder 10, the stock of which is together with the movable frame 14 and with the grippers 17 and 18 ,. spring-loaded elastic plates 19 and 20 are fed forward. Grips 17 and 18, slipping on the head 21 of the striker 22, overcoming the forces of the elastic plates 19 and 20, in the final movement

the rod of the hydraulic cylinder 10 is opened, and, bypassing the head 21 of the striker 22, are closed. The working fluid is fed into the rod end of the hydraulic cylinder 10. The grippers 17 and 18, capturing the head 21

the striker 22, start moving upwards, while the striker 22, movably mounted on the guides 24, begins to compress the elastic elements 27 until the inclined planes of the grippers 17 and 18 come into contact with the openers 23 mounted on the hydraulic cylinder 10 .

The openers 23 simultaneously open the grippers 17 and 18 and release the head 21 of the striker 22. Under the action of the energy of the charged elastic elements 27, the striker 22, with its mass, strikes the actuator 28, which slides over the columns 29. a piece of rock or ang. If the impact of the striker 22 and the executive body 28 is idle, then the impact energy is extinguished by the shock absorbers 30. By switching the working fluid (switching device not shown), the described operations are repeated until the pieces of rock or coal are destroyed.

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Claims (1)

Invention Formula The impactor for crushing large pieces of rock and coal, including a body, a hydraulic cylinder connected with it, spreaders, spring-loaded swivel grips with inclined planes, elastic elements, a head with a head, stroke stops and an actuator with shock absorbers and movement limiters differing the fact that, in order to increase the efficiency of crushing by increasing the impact energy and increasing reliability, it is provided with frames in the housing associated with the hydraulic cylinder rod, columns and guides tori -. with the possibility of axial movement, the firing pin is mounted, spring-loaded with elastic elements placed on each of the guides, while the openers are rigidly fixed on the hydraulic cylinder and have spherical surfaces for interaction with inclined gripping planes that are hinged on the frame, the hydraulic cylinder being hinged to the case, and the actuator mounted on the columns c. possibility of axial movement. 24 srig.Z r 13 W eleven 12 Phie. 5-5   I  I I I. I 30 31 fi & .5