SU983335A1 - Hydraulic percussion-action apparatus - Google Patents

Description

(54) HYDRAVLICHEKOK SHOCK ACTION DEVICE

one

The invention is related to the coal, mining, and mining industries and can be used to create tunneling and cleaning machines, drilling rigs for breaker mops, trays and hammers.

The hydraulic device of the percussion device is known, which includes a housing with a drummer installed with the formation of a platoon neck and a worker’s chamber, and a working tool, an accumulator with a gas and liquid cavity, and a drain. , and the delivery line and the control unit: a hammer, a main spool valve, an additional 15-way spool valve, knnema-1 is tally connected to the drummer, and a valve valve, which communicates the striker chambers from the drain main flow valve via an adjustable ijpoccenb jjl} 20

 A disadvantage of the known device is that it does not provide for blocking from striking the striker against the drummer’s body in the absence of an obstacle (for example, rock) in front of the tool. There is no adjustment for the frequency at a constant impact energy, throughput and pressure of the fluid in the oil line and in the accumulator gas.

The aim of the invention is to increase the efficiency of the TETV control system.

The delivered pell is achieved by the fact that the device is equipped with an end flow interrupter kinematically connected with the working tool and installed. lenny in the discharge line and an additional adjustable choke installed in the main pipeline of the secondary spool valve ..

The drawing shows the proposed device.

Claims (1)

Hydraulic device; The shock action includes a housing 1, a drummer 2, in: a junction chamber 3, a working stroke chamber 4, a working tool 5, a CU battery with a gas cavity 7 and a liquid cavity 8, a control unit 9 including a main spool valve 1O, an additional spool valve 11 lever 12, valve distributor 13 with cavities 14 and 15 and channel 16, adjustable throttle 17, slave. The main line 18, the discharge line 19, the conderer breaker 20, the lever 21, an additional adjustable throttle 22. The hydraulic percussion device works as follows. In the initial (right-most) position of the valves: Yu, 11, and 13, fluid is supplied along discharge line 18 at the same time into cavities 8, 14 and J.5, charging chamber 3 and to the end separator 2O. Due to the difference of forces acting on the end pads of the valve distributor 13 in the cavities 14 and 15, it is closed, connecting the chamber 4 by means of the channel 16 and the throttle 17 to the drain line 18, the accumulator 6 starts to charge, and the striker 2, the speed of which It is regulated by the choke 17 and the larger it is, the less potential energy accumulates in the battery 6, for example, by compressing the gas, so the knocker 2 of the drummer 2 doesn’t have battery 6. having time to charge completely, i.e. choke 17, it is possible to vary the frequency and energy of impacts in inverse proportion. As the first characteristic increases, the second will automatically decrease and. vice versa. At the end of the platoon, the striker 2 by the lever 12 switches the additional spool valve 11 and holds it in this position until the working tool 5 when the body 1 is supplied with a static force P switches the end breaker 2O by the lever 21. the main spool valve 10, which, when switched, provides the connection of the chamber 3 and the cavity 15 to the drain line 18.. When the battery 6 is discharged, the energy of the compressed gas opens the distributor 11 and the liquid from the discharge line 19 and the cavities 8 and 14 is poured into the chamber 4, the accelerator is accelerated. The distributor 11 is held by the switch due to pressure on the drain, returning to its original position after the drummer 2 strikes the tool 5, since the pressure in the drain line 18 drops, and the end cavity of the main spool valve 10 through the throttle 22 and the drain line 18 is connected at the same time. The throttle 22 is intended to regulate the speed of movement of the distributor 10 to the initial position, which influences the cycle time | which during the subsequent charging of the striker 2 switches and connects to the discharge line 19 the end cavity of the distributor 1O. He srabshatsya, and drummer 2, acceleration camping, deals - another blow according to the described scheme. The use of the proposed device allows you to adjust the frequency of shocks at a constant energy, expanding the scope of application of the device, eliminates the impact of blows to the body, increasing the reliability of the structure as a whole. Claims of the invention A hydraulic hammering device comprising a housing with a hammer installed to form a cocking chamber and a working stroke chamber, a working tool, an accumulator with a gas one. a vacuum cavity, a drain and discharge line, and a drum control unit, including a main spool valve, an additional spool valve, kinematically connected with a drummer, and a valve valve, which communicates the striker's working stroke chambers with a drain line, through for the purpose of controlling the operating efficiency, it is equipped with an end flow breaker, kinematically connected with the working tool and installed in the injection magi They are also fitted with an additional adjustable choke installed in the drain line of the additional spool valve. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 613О93, cocl. F 15 B 15 / GS, 1974.