SU768959A1 - Percussion-action hydraulic apparatus - Google Patents

Description

 - one

I The invention relates to the field of the mining industry, namely to hydraulic devices of percussive action, and can be applied in brown percussion-rotary machines.

Known percussion devices are known, including a housing, a striker, a piston, a spool, working and reversing chambers.

The closest in technical essence and the achieved result to the present invention is a hydraulic device of percussive action, with a double housing, in which with the possibility of reciprocating. A piston-side and an inertial piston are installed, which has a common working stroke chamber and a return stroke chamber 2.

The disadvantage of this device is the relatively large number of constituent elements, which complicates its design.

The aim of the invention is to simplify the design of the device.

The goal is achieved as a result of the fact that the areas of the piston and the inertial piston are the same on the side of the working stroke chamber, and on the side of the backward chamber the inertial piston is larger than the piston area parts of the body, and the camera reverse - in its tail.

The invention is further illustrated by an example of a specific reference with reference to 1c to the accompanying drawing, in which

Presented by ScheShed || Ъ: 8 personal impact device.

The device contains a tool I, the axle 2, the piston head 3, the inertial 20 piston 4, the housing 5, the spool 6 in the housing 7.

Between the bounce piston 3 and the inertial piston 4 in housing 5, a common cam is installed in the front part of the device, and in its tail a common reversing chamber 9 is formed. and the inertial piston 4 from the side of the working stroke chamber 8 are the same, and from the side of the reverse gear chamber 9, the area of the inertial piston 4 is larger than the Area; . Camera backstop 9 through channel 12 It communicates with the pressure cavity 13 of the spool 6. Overflow cavity 1I prstrno with, communicates with channel 14 and with drain 15. In the case 7 of the adapter 7, the control is formed (and the cavity 16 communicates with the chamber formed by the housing 5 of the device, groove 17, made on the piston hammer 3, through channel 18.. Channel 19 is completed in case 5. The device works as follows.,;:: - -; .- When the hydraulic actuator is turned on, the working fluid from the pump enters the pressure chamber 13 of the spool and further along channel 12 - to the backstop chamber 9: As a result of this rshengboek 3 rie; moves to the right, and the inertial pore | , shen 4 - left until as long as: shen-bok 3 with its annular groove 17 does not communicate channels 18 and 19. The liquid under pressure will flow into the control cavity 16 and the spool 6 will move to the right / according to the drawing / under the action of the force difference, operating from the side of the cavities 13 and 16, informing the very pressure chamber 13 with the working chamber 8.; Under the action of the force acting from the side of the working stroke chamber 8, which is greater than the force acting from the side of the reverse gear chamber 9, the piston-piston inertial piston 4 begins to slow down and then move in the opposite direction until itopop-off. tool 1. At this moment, the annular tube T of the piston –bike 3 connects the channels 14 and t 18 and, accordingly, cavities 16 and 11. Under the action of a force, the rifle 6 is constantly acting from the side of the cavity 13 and moves to the left / char | tezhu / connection Amer 8 and cavity II through channel 10 with discharge 15. From this moment the piston head 3 begins to move to the right / according to the drawing /, and the inertia piston 4 is already decelerated too right to the right to stop, and then the inertial piston 4 begins to move towards the ram 3 / t. from the bottom of the working chamber 8 through the channel 10 will be forced out of the chamber of the reverse stroke. X The movement of the piston-3 and the inertial 4 towards each other will continue to as long as the annular groove .1 7 connects Kanesh 18 and 19.. Once this cycle is repeated. About p and u and 3 about b. t. e and gvdra influential device shock N action, comprising a housing in which with the possibility of reciprocating movement installed piston-striker and inertial piston having a common chamber of the working stroke and the camera reverse, distinguished e c. the fact that, in order to simplify the design of the device, the area of the piston-cushion and inertial piston with; The sides of the working stroke chamber are the same, but from the side of the reverse chute, and the area of the inertial piston is larger than the area of the piston, the working stroke chamber is located in the front part of the body, and the return direction chamber i - in its tail part. Sources of information received attention in the examination. 1. USSR author's certificate number 361866, cl. E 21 C 3/22, 16.11.70. 2. USSR author's certificate number 557178, cl. E 21 C 3/20, 09/08/75 / prototype /.

Claims (1)

Claim 30 Hydraulic shock device • containing a housing in which, with the possibility of reciprocating movement, a striking piston and an inertial piston are installed, having a common working chamber and a reverse chamber, characterized in that, in order to simplify ; design of the device, the area of the piston-striker and the inertial piston with 40 sides of the working chamber are the same, you, and on the side of the reversing chamber the area of the inertial piston is larger than the area of the striking piston, while the chamber. working stroke located in front 45 parts of the body, and the reverse chamber - in its rear part.