SU883425A1 - Hydraulic wedge - Google Patents

Description

(54) GIDYUKLIN

one

The invention relates to the field of mining, namely to hydraulic mechanisms for the destruction of oversize and the separation of blocks from the array along the line of holes.

A hydraulic mechanism is known for breaking rocks using an element acting on the rock, which is pulled out of the body by plungers under the pressure of a liquid 1.

It is also known hydrocline device for the destruction of rocks, including hydraulic cylinder, piston, wedge n cheeks 2.

A disadvantage of the known device is the comparative duration of the chipping cycle and the necessity of supplying the working fluid (oil) to the PFHIPP under high pressure (5001000 kg / cm).

At the same time, the supply hoses are an emblematic link in the structure (especially at low temperatures), and it takes considerable time to fill the hydraulic fluid with the working fluid.

The purpose of the invention is to design the structure.

The goal is achieved by the fact that the additional hydraulic spline is placed in the piston rod of the main hydraulic piston, with this wedge attached to the piston titanium of the additional hydraulic spindle.

An additional hydraulic cylinder is connected to the main line by a flexible coil.

The drawing shows the structural scheme of the device.

Claims (2)

A hydroclinic device for rock destruction consists of a body (a hydraulic cylinder) 1 with a cover 2, a piston 3, which is integrally filled with a rod 4. In the rod 4 of the main piston 3 an auxiliary cylinder with a piston 5, a rod 6 and a return spring 7 is placed, supported on the sleeve 8, reinforced in the stem 4. At the free end of the stem 6, a wedge 9 is sharpened and enters between the cheeks 10 and 11. The cheek is strengthened with a nut nut 12n of the transitional cup 13 on the housing 1. butter through the pipeline (line) 14 and the shut-off valve 15, and the lower cavity - channel 16. The auxiliary hydraulic cylinder cavity with the piston 5 is connected to the external oil drain through, pipe 14, the shut-off valve 17 and the coil 18. The hydro-wedge device for rock destruction works as follows . The tool body (wedge 9 and cheeks 10 and 11) is inserted into the hole drilled in the rock. Oil is supplied from the external oil tank i through the pipeline 14, the burned valve 17 and the elastic coil 18 into the cavity of the auxiliary wedge 9 with it, which is pre-implanted. At the same time, oil is pumped into the main hydraulic cylinder 1 through the valve 15. Since the diameter of the auxiliary piston 5 is relatively small, its movement at a constant flow rate of the pumped oil occurs much faster than the main piston 3. As soon as the preliminary introduction of the wedge ends, the gaps are chosen between the surface and the hole and the movement of the wedge due to insufficient force developed by the auxiliary joint 5, and the valve 17 is closed. In this case, the force from the main piston 3 is transferred to the wedge. Since KUK its area is significant, the force appearing on the cheeks is sufficient to split the rock. Since the preliminary introduction of the wedge has already been carried out, the required stroke of the main piston 3 is not large. The latter circumstance allows, with a small weight of the device, to achieve large separation forces. Separate injection of oil is possible at first into the cavity of the auxiliary hydraulic cylinder with valve 15 closed and 17 open, then into the main hydraulic cylinder 1 cavity with valve 17 closed and open 15. At the end of the decal, oil is returned to the tank from the cavity of the auxiliary hydraulic cylinder with spring 7 17, and from the cavity of the main hydra of indra through the open valve 15 by pumping oil through the opening 16. The greatest positive effect can be obtained by using the proposed ivy device as an attachment to the machine with hydraulic drive, for example Belorus tractor. At the same time, the base station's oil station with a relatively low pressure (150 kg / cm) will drive the hydrolinlin device without installing a special high pressure unit. Claim 1. Hydroclin, including a body with main and additional hydraulic cylinders with a piston and a rod, a wedge and sliding cheeks, characterized in that, in order to simplify construction, an additional hydraulic cylinder is placed in the piston of the main hydraulic cylinder, while the wedge is fixed on the rod additional cylinder piston 2. Hydrocline according to claim 1, characterized in that the additional hydraulic cylinder is connected to the main by a flexible serpentine. Sources of molds taken into account during the examination 1. USSR author's certificate No. 144805, cl. E 21 C 37/02, 1961. 2, USSR Author's Certificate No. 662712, class, E 21 C 37/02, 1976 (prototype).