RU2587391C1 - Device for determining power consumption of destruction of rocks - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: invention relates to investigation of mechanical properties of rocks. Device for determining power consumption of destruction of rocks comprises bed, perforated barrel to accommodate testing rock samples, punch and loading hydraulic cylinder. At that, perforated barrel is installed relative to bed through thrust and radial bearings, and through spline joint is connected with handle for rotation of barrel.

EFFECT: technical result consists in simplifying the process of measurement of power consumption due to possibility of removal of fractions of broken rock by means of rotation of perforated barrel.

1 cl, 1 dwg

Description

The utility model relates to devices designed to study the mechanical properties of rocks of different strengths, and can also be used to determine the energy intensity of their destruction.

There are various devices for determining the energy intensity of rock destruction, one of which is (SU 964165, class E21C 39/00, 10/07/1982), consisting of a bed, a cup for placing test rock samples, a punch and a piston of a loading cylinder. In this case, the punch and piston of the loading cylinder are made with the possibility of their relative axial displacement.

The disadvantage of the device (SU 964165, class E21C 39/00, 10/07/1982) is the inaccuracy of the signals recorded by the equipment due to shock processes arising during the operation of the device. Impacts arise due to the fact that during partial destruction of rock samples, the elastic energy released by the stock of the press during exposure to the samples is released. This energy is not recorded by measuring equipment and therefore is not taken into account when determining the energy intensity of destruction.

Closest to the claimed is a device (RU 2148170, class E21C 39/00, 04/27/2000), which contains a frame, a perforated glass for placing test rock samples in it, a punch, a loading hydraulic cylinder, a tightening bolt, a conical and cylindrical spring.

The disadvantage of this device (RU 2148170, class E21C 39/00, 04/27/2000) is the inability to rotate the perforated glass to remove fractions of the destroyed rock, which greatly complicates the process of measuring energy intensity.

The objective of the proposed utility model is to facilitate the process of measuring energy intensity by achieving the ability to remove fractions of destroyed rock by rotating a perforated glass.

The solution to the problem is achieved by using in the device persistent and radial bearings, a handle for rotating the cup, as well as a spline connection for its interaction with the perforated cup.

The technical result of the claimed utility model is expressed in facilitating the process of measuring energy intensity by achieving the ability to remove fractions of the destroyed rock by rotating a perforated glass.

The specified technical result is achieved by the fact that in the device for determining the energy intensity of rock destruction, including a bed, a perforated glass for placing test rock samples therein, a punch, a loading hydraulic cylinder, according to the claimed utility model, the perforated glass is mounted relative to the bed through thrust and radial bearings, and through a spline connection connected to the handle for rotation of the glass.

The proposed device for determining the energy intensity of rock destruction is shown in the drawing.

The inventive device consists of a frame 1, a clamping lock 2, which serves to hold the perforated cup 3, in which the test samples of rock 4, thrust 5 and radial 6 bearings are mounted on the frame 1 and providing rotation of the perforated cup 3 around its axis by means of a handle for rotation of the glass 7, connected to it through a spline connection 8, the punch 9, acting on the test samples of rock 4, the elastic element 10, which is a conical spring and located about between the punch 9 and the piston of the load cylinder 11.

The proposed device operates as follows.

Liquid is supplied to the loading cylinder 11 under pressure, and the piston begins to move towards the test rock samples 4, until the punch 9 comes into contact with them. Next, the action of the punch 9 on the tested rock samples 4 begins, while the elastic element 10 begins to compress, taking on the same load as the tested rock samples 4. At the time of cleavage of the rock, the punch 9, due to the elastic energy of the elastic element, remains pressed to the samples and no impact on them occurs. The impact on the handle for rotation of the Cup 7 through the spline connection 8 is the rotation of the perforated Cup 3 around its axis in the thrust 5 and radial 6 bearings, thereby achieving the removal of fractions of the destroyed rock samples 4.

By measuring the linear displacement of the punch 9 and the pressure in the load cylinder 11, it becomes possible to construct a deformation and fracture diagram of the tested rock samples 4, the area of which is the work spent on fracture. By dividing the work spent by the volume of the destroyed rock, it becomes possible to determine the energy intensity of the destruction of this rock.

Thus, the inventive device for determining the energy intensity of rock destruction using thrust and radial bearings, as well as a spline connection of the handle to rotate the glass with a perforated glass, facilitates the process of measuring energy intensity by achieving the possibility of removing fractions of the destroyed rock by rotating the perforated glass.

Claims (1)

A device for determining the energy intensity of rock destruction, including a bed, a perforated glass for placing test rock samples in it, a punch, a loading hydraulic cylinder, characterized in that the perforated glass is mounted relative to the bed through thrust and radial bearings, and connected via a spline connection to the handle for glass rotation.

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