SU1270238A1 - Rock-breaking device - Google Patents

Abstract

The invention relates to the mining industry and makes it possible to increase the efficiency of rock destruction by activating the side teeth 7 of the device. To do this, in the lower part of the housing (K) 2 of the percussion mechanism 1 of the device, a spherical support 5 is mounted. Support 5 has a sleeve (B) 6c with teeth 7. A magnetostrictive vibrators are located on the upper end B 6 around its circumference; .iCB) 8 with springs 9. The springs 9 abut against the support flange 10 fixed to K 2. When the device is pressed against the object to be destroyed, B 6 is located on the surface of the object, copies the profile of its topography and comes into contact with it. In operation, the mechanism transmits the impact energy through the central wedge 4 to the object. In this case, the MCB 8 is activated and locally weakens the physical and mechanical properties of the object. At the same time, for greater efficiency of destruction and in order to avoid impact on K 2, eccentric loads of MCB 8 are connected with the possibility of oscillations in antiphase. The distance between the MWS is 8 times (L but the length of the half-wave of their longitudinal vibrations. 1 Cp f-crystals. 2 Il. About th with 00

Description

The invention relates to devices for carrying out a directional impact vibration when loosening durable soils, destroying rocks, and can be used in the road construction industry, mining, metallurgy and other industries.

The purpose of the invention is to increase the efficiency of destruction due to the activation of the side teeth.

FIG. 1 shows a device for breaking rocks; in fig. 2-section A-A in FIG. one.

The device includes a percussion mechanism 1 with a housing 2 and a working tool 3 made from a central wedge 4 and from a sleeve 6 mounted on the spherical support 5 in the lower part of the housing 2 with side teeth 7. At the upper end of which magnetostrictive vibrators 8 are arranged rigidly and symmetrically with the springs 9 abutting against the support flange 10 fixed to the body 2 of the impact mechanism I.

The device works as follows.

When the device is pressed against the destructible object, the sleeve 6, 1 is mounted on the spherical support 5, is located on the surface of the destructible object, its relief profile, and the side teeth 7 enters a reliable grip, allowing the wedge 4 to apply energy paspyni.

After the shock mechanism 1 is put into operation, the impact energy is transferred

through the central wedge 4, magnetostriction vibrators 8 are also put into operation, which locally weaken the physicomechanical properties of strong soils or rocks in the area of destruction. With

This for greater efficiency of destruction and to avoid the impact on the body 2 of eccentric loads of diameter, the installed magnetostriction vibrators are connected with possibility of oscillations

in antiphase and located at a distance from each other, multiple of the half-wave length of their longitudinal vibrations.

Claims (2)

1. Device for the destruction of mountain rocks, including a percussion mechanism with a body and a working tool made of a central wedge and mounted on a spring-loaded wltlke lateral teeth, characterized by the fact that, for the first time, the new efficiency of destruction due to the activation of lateral teeth, the lower part of the body is equipped with a spherical support, on which the sleeve with lateral teeth is mounted, and the latter with magnetostrictive vibrators installed symmetrically circumferentially on its upper the end, the body being provided with a support flange for the springs associated with the sleeve. 2. The device according to claim 1, characterized in that the diametrically located vibrators are connected with the possibility of oscillations in antiphase and are set apart from each other at a distance that is a multiple of the half-wave length of their longitudinal vibrations.