SU1506102A1 - Hydraulic percussive mechanism - Google Patents

Abstract

The invention relates to the mining industry and is intended for the destruction of rocks. The goal is to increase the frequency of strokes by ensuring that the strike begins to strike before it comes into contact with the valve. The hydraulic percussion mechanism includes a housing (K) 1, a step head (B) 2, having a control channel 8 in the larger stage 7, and a valve 4 forming a storage chamber 3 with K 1. The valve 4 is made in the form of a piston 5 with a rod and a channel 6 controls The piston 5 and the striker stage 7 are made equal in diameter and form with K 1 a cocking 9, a working 10 and a return 11 chamber. In K 1, the drain channel 13 and the first 15 and second 16 additional pressure channels are additionally made. Channels 13 and 15 are arranged to periodically communicate with the camera 10. Channel 16 is located with the possibility of periodic communication with the control channel 8. Chamber 11 is permanently in communication with the pressure line. Stage 7 B 2 from the side of the chamber 9 is made with a working area of the larger working area of the piston 5 valve 4 from the side of the chamber 11. When the valve 4 closes, moving towards B 2, channel 16 B 2 starts to platoon without waiting for contact with valve 4. 1 Il.

Description

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31506102

control, and valve 4, which forms a storage chamber with K I. Kapang 4 is made in the form of a piston 5 with a rod and a control channel 6. The piston 5 and the striker stage 7 are made equal in diameter and form with K 1 a cocking 9 working 10 and a return 11 chamber. In K 1, there are additionally drain kangi 13 and first 15 chu 15 and second 16 yards. Additional pressure channels. Channels 13 and 15 are arranged with the possibility of periodic communication with camera 10,

Channel 16 is intermittently connected to control channel 8. Chamber P is permanently in communication with the pressure line. Stage 7 B 2 from the side of the chamber 9 are made with a working area of the larger working area of the piston 5 valve 4 from the side of the chamber 11. When closed by valve 4, moving towards B 2, the 16 B 2 channel channel begins a platoon without waiting contact with valve 4. 1 Il.

The invention relates to the mining industry, namely to impact devices for breaking rocks.

The purpose of the invention is to increase the frequency of strokes by ensuring that the strike begins to strike before it comes into contact with the valve.

The drawing shows the proposed mechanism.

The hydraulic mechanism of the percussion includes a housing 1, in the cavity of which a stepped firing pin 2 is placed, forming with the housing 1 an accumulating chamber 3 and a valve 4.

The valve 4 is made in the form of a piston 5

with the SECOND and control channel 6, and the head 2 has a stepped form, in the larger stage 7 of which control channel 8 is made. The piston 5 and stage 7 are equal in diameter and form a squad 9, a working 10 and a return 11 chamber with the body 1. Case 1 is made with a drain channel

12, additional drain channel

13, the pressure channel 14, the first 15 and the second I6 additional pressure channels. The drain channel 12 is in communication with the drain line, and the pressure channel 14 - with a pressure line. The additional drain channel 13 and the first additional pressure channel 15 are arranged to periodically communicate with the working chamber.

10, and the second additional pressure channel 16 is disposed to periodically communicate with the control channel 8. The return chamber 11 is continuously communicated via channel 17 to the pressure main. A large stage 7 of the striker 2 is made with a working area on the side of the charging chamber 9 greater

largest working area of the piston 5 valve 4 from the return chamber 11.

The mechanism works as follows.

Claims (1)

To activate the percussion mechanism, the striker 2 is pressed, for example, with a working tool upwards, closing channel 8. At the same time, in the pressure channel 14 connected to the delivery line, the pressure of the fluid that acts on the striker 2 increases and moves it upwards. When the channels 8 and 15 intersect, the fluid pressure from the pressure line is transferred to the tapping chamber 10 and opens the firing pin 2 from the valve 4, which continues to move upwards, and the fluid pressure from the pressure line through the channel 16 is transferred to the working chamber 10 and, at a greater stage 7 , acceleration em hammer 2 down before hitting the working tool. When this is the striker 2 opens the channel 13 and in the working chamber 10 the pressure of the fluid drops. Under the action of the accumulating chamber 3, the valve 4 begins to move downward and, when the piston 5 closes the channel 16, the fluid pressure in the pressure line increases. In this case, the striker 2 begins to move upward, without waiting for contact with the end surface of the piston 5, and the valve 4 moves downward under the action of the pressure of the fluid in the return chamber 1 1. Invention Formula The hydraulic mechanism of percussion, including the body, in the cavity of which there is a stepped firing pin and a valve, ob1) aupdi11 with a body accumulating and returning chambers. 51506; pressure and discharge lines, characterized in that, in order to increase the frequency of shocks by ensuring that the striker begins to strike before it comes into contact with the valve, the firing pin is made with a control channel in a larger stage, while the large striker stage and valve piston are equal in diameter and form coaxing, working and returning chambers with a pipe, the casing being made with an additional drain channel, the first and second additional pressure 02 channels, while the additional drain channel and the first additional pressure channel are arranged to periodically communicate with the working chamber, and the second additional pressure channel is located with the possibility of periodic communication with the control channel of the striker and the return chamber is permanently connected to the pressure line, while the area of the striker stage from the side of the platoon of the first chamber, there is more valve working area from the return chamber chamber sturon.