SU1364712A1 - Rotary-percussive device - Google Patents

Abstract

The invention relates to the mining industry and allows to increase the efficiency of the device by reducing the length of the hydraulic channels. The device includes a stationary body (K) of a rotational drive with an output shaft 1 and an eccentric ring 2, a percussion mechanism. In the cavity of eHo K 4 placed

Description

IS

(L

with about 1

HS

spring-loaded inertial mass 6 with a central channel and drive with two movable spring-loaded pistons (P) 8j 9, forming a pressure chamber with K 4 13. Moreover, K 4 is connected with the shaft 1 and is made with a guide rod 10 and a plunger 11 forming with weighing 6 cavity 12 platoon, and a compensator 14 volume. These P 8, 9 are made with channels 15, and the total area of P 8, 9 is greater than the working area of the cavity 12, At the shaft 1, K 4

1364712

and P 8, 9 last run around ring 2 and move towards each other

ejecting the volume of the driving medium (PS) from the cavity 13 into the cavity 12. The mass 6 rises and when the pressure drops in the cavity 12 moves downwards, a blow to the bottom K 4. The volume of the PS spreads P 8 and 9. At their open position, the channels 15 connect the cavities 3 and 13, Cavity 13 receives a part of the PS. 3 hp f-ly, 2 ill.

ejecting the volume of the driving medium (PS) from the cavity 13 into the cavity 12. The mass 6 rises and when the pressure drops in the cavity 12 moves downwards, a blow to the bottom K 4. The volume of the PS spreads P 8 and 9. At their open position, the channels 15 connect the cavities 3 and 13, Cavity 13 receives a part of the PS. 3 hp f-ly, 2 ill.

one

The invention relates to mining, in particular to impact-rotating devices for breaking rocks and man-made materials.

The purpose of the invention is to increase the efficiency of the device by reducing the length of the hydraulic channels.

FIG. 1 given device, general view-; in fig. 2 shows section A-A in FIG. one.

The percussion-rotational device contains a rotational drive with an output shaft 1 and a stationary body equipped with an eccentric ring 2, a shock mechanism having an inertial mass 6 spring-loaded with a spring 5 with an inertial mass 6 with a central stepped channel, and a two-spring loaded shock mechanism a spring 7 pistons 8 and 9 mounted in the housing 4 with the possibility of axial movement and the possibility of interaction with the eccentric ring 2. The housing 4 of the percussion mechanism is designed with a polar direction guide rod 10 and the plunger 11, with the generators; -. inertial mass 6 cavity 12 platoon. Pistons 8 and 9 form. With housing 4 a pressure chamber 13, communicated through starzhn 10 cavity with cavity 12 of the platoon. The housing 4 of the percussion mechanism is made with a compensator 14 vol. It is rigidly connected to the output drive shaft 1 of the rotation drive, and its cavities are filled with a driving medium. The pistons B and 9 are made with channels 15 for periodically communicating the cavity 3 of the housing 4c with the pressure cavity 13. The total area of the pistons 8 and 9 is larger than the ps of the barrel area of the platoon 12.

5 Pistons 8 and 9 are sealed with rubber diaphragms 16 and 17. On the inner surface of the eccentric ring, the ledges 18 are complete. Pistons 8 and 9 have bearings 19 and 20.

10 Devices o works as follows. :

With the rotation of the shaft 1 drive body 4; with pistons 8 and 9 rotate. Moreover: bearings 19 and 20 about 5: roll the stationary eccentric ring 2. When the steps 18 are rolled, the pistons 8 and 9 receive axial movement and move towards each other, pushing the volume of the driving medium

20 from the cavity 13 into the cavity 12, while compressing the spring 5. The inertial mass 6 moves upward (Fig. 1), compressing the spring 5. When the bearings 19 and 20 descend from the ledges 18, the pressure in the po;

25 of the cavity 12 drops sharply, the inertial mass 6 moves down under the force of the compressed spring 5 and strikes the lower part of the housing 4, while removing the driving medium from the cavity 12

30 returns to the cavity 13 and disengages the pistons 8 and 9 with the help of the spring 7. As the pistons 8 and 9 oscillate, the volume 3 of the housing 4 also periodically changes. For compensation

35 of these changes is intended sylphon 14.

At the fully extended position of the pistons 8 and 9 (Fig. 1) hole 15

connects the cavity 3 of the housing 4 with the cavity 13, while the cavity 13 receives a portion of the volume of the driving medium, which is lost in the form of leaks during the cycle. Then the cycle repeats.

Claims (4)

1. A percussion-rotary device comprising a stationary drive of rotation with an output shaft, a percussion mechanism having a spring-loaded inertial mass installed in the cavity of its casing with a central channel, and a drive of the percussion mechanism with two spring-loaded pistons installed with axial displacement , from the fact that, in order to increase the efficiency of the device by reducing the length of the hydraulic channels, the rotational drive casing is provided with an eccentric ring, and the percussion casing formed with the guide rod and the plunger, obrazufu8. g Inertial mass with a platoon cavity. Moreover, the pistons are mounted in the housing of the percussion mechanism with the ability to interact with the eccentric ring and form a pressure cavity with the percussion mechanism housing communicating with the platoon cavity, and the percussion housing is connected to the output drive shaft the cavity is filled with a driving medium. 2. The device according to claim 1, wherein the piston has a channel for intermittently communicating the cavity of the body of the percussion mechanism with the pressure cavity. 3. The device according to claim 1, characterized in that the total area of the pistons is larger in magnitude than the working area of the platoon cavity. 4. The device according to claim 1, which is designed so that the body of the percussion mechanism is made with a volume compensator. fS