SU519540A1 - Hydrohammer for the destruction of rocks - Google Patents

Description

one

The invention relates to mining engineering, namely to hydraulic hammers for the destruction of rocks.

givesten hydro hammer to destroy rocks, including a receiver formed of tubular elements that make up the housing of the hydrologist, a power cylinder, a piston with a rod, a hammer, elastic directions, and a hydraulic line.

However, the well-known hydraulic hammer has a low durability.

The purpose of the invention is to increase the durability of the hydraulic hammer by increasing the elasticity of the guides.

The cJTO is achieved by the fact that the cavity of each hydraulic hammer damper is connected to the hydraulic line through a check valve and has a safety valve.

FIG. 1 is a structural diagram of a hydraulic hammer and the connection of the guides to the hydraulic main; in fig. 2 shows a cross section A-A of the hammer-hammer and its rails at the moment of operation of the damper.

1 hydraulic hammer for breaking strong rocks has a piston 2 power cylinder 2, a rod 3, a receiver 4, a bolt 5, a hammer-hammer 6 and hydraulic dampers 7 with safety valves 8 mounted on them. The receiver is formed by several pipes interconnected and forming the body 9 hydraulic hammer Hydraulic dampers are fixed on the receiver tubes and act as elastic rammers of the hammer. The powering of the hydraulic dampers is conducted from the water line 10 through the check valve I, which ensures the constant high pressure in the cavity 12 of the hydraulic damper.

The hydraulic damper includes a housing 13 with a cover 14, a disk-shaped piston 15, a cuff 16 and a locking sleeve 17. From the penetration inside the casing of the gland, a cuff wagon 18 is provided. The hydraulic hammer has windows 19 and a control valve 20.

Hydraulic hammer works as follows. When supplying pressurized fluid to the chamber 21 of the cylinder 1, the piston 2 with the rod 3 and the hammer hammer 6 moves, displacing the compressed air from the chamber 22 of the cylinder 1 to the receiver 4. The windows 19 are closed at this time by the shutter 5. Go to the end of the cylinder 1, piston 2 presses the command valve 20, which controls the shutter 5, which opens the windows 19 to discharge the liquid from the chamber 22 to the atmosphere. Under the action of compressed air, the piston 2-rod 3-hammer-hammer system 6 moves at high speed, striking a destroyed object. If the bottom surface has irregularities and

located not at a right angle to the hydraulic hammer axis, then under the action of the bottom-hole reaction forces, the hammer-hammer 6 acquires a translational and rotational motion around its transverse axis. In this case, the piston 15, moving inside the cylinders of the hydraulic dampers, displaces water from them, which is discharged through the safety valve 8 to the atmosphere. Since, during rebound of the hammer-hammer 6, a single group of dampers works, their autonomy, i.e. the installation of a separate safety valve on each damper, is obligatory. Then the cycle repeats.

Claims (1)

Invention Formula A hydraulic hammer for breaking rocks, including a receiver formed from tubular elements constituting the hydraulic hammer body, a power cylinder, a piston rod, a hammer, elastic guides made in the form of a damper, and a hydraulic main, characterized in that, in order to increase durability due to an increase in the elasticity of the guides, the cavity of each damper is connected with the main line by means of a check valve and has a safety valve. gp 17 If 15 13