SU1289985A1 - Hydraulic mining unit - Google Patents

Abstract

The invention relates to means of deserted coal mining by falling on steep outburst formations. The goal is to increase reliability by providing direction and automatic control. For this, the executive support is made of two half-supports (on) 8 and 9, connected by hydraulic cylinders (GC) 10 of the advancing and imeck GH-11 and 12 thrust with skis. ON 8 and 9 are located hydraulic switches and 24 and valves 33 and 37. The flanges 19 and 20 of the transition rod 7 through the rods 21 and 22 of the hydraulic switches 23 and 24 hold their spools 25 and 26 in the extreme upper position, breaking the force of the springs 31 and 32. Cavities 18 Hz 12 are communicated via hydraulic distributor 41 with discharge into the atmosphere. With the drain communicated and the cavity 13 HZ 1711 № (L

Description

10 shifts. The spreading of the semi-support 8 ensures the orientation of the drilling rod in the process of shifting software 9. When the drilling rod is supplied by the amount of new chips, the process is followed. The invention relates to the mining industry, namely to the means of deserted coal mining to fall on steep outburst formations.

Purpose and discovery - reliability.

Figure 1 shows a hydraulic installation, a general view of figure 2 is view A of figure 1; Fig. 3 is a diagram of the operation of an executive support with e shifting.

The hydraulic installation includes a feed machine 1 with a rotator, a drill having become 2 of hollow rods with intermediate supports (lanterns) 3, a hydraulic actuator 4 with drill 5 and a clearing 6 jet-forming shafts. The executive body has a transition bar 7, which rests on a support consisting of | It consists of two half-supports 8 and 9, connected by hydraulic cylinders 10 of the advances and having hydraulic cylinders 11 and 12 of thrust with skis. Advancement cylinders have piston cavities 13 and rod cavities 14, and thrust cylinders have cavities 15, 16, and 17, 18, respectively. The transition bar has flanges 19 and 20 that interact with rods 21 and 22 located on the half-switches of the hydraulic switches 23 and 24 having spools 25 and 26 with end cavities 27, 28 and 29, 30 with springs 31 and 32. On the semi-axle 8 there is a valve 33 with a spool with 34 front cavities 35 and 36. end spans 39 and 40, intermediate E 41, having a spool 42 with an end cavity 43 with a spring 44 and an end cavity 45, associated with the. valves 46 and 47 with the springs 48 and 49. Hydraulic cylinders

the software shifting of software 8 and 9 is repeated. At the same time unwrapped software 8 and 9, the destruction of new chips and the deepening of the advancing well. 3 il.

the advances have the throttle 50. The valve 46 with its spring 48 and the spring 44 of the intermediate distributor 41 is adjusted to the pressure of the working medium. The valve 47 with its spring 49 is configured to force, exceeding the force generated by the spring 44 of the distributor 41.

Hydraulic installation works

in the following way.

High-pressure water in the drilling rig 2 goes to the executive body 4 and further to the drill stems

5 and the clearing shaft 6. The outflowing borehole is blown out of the jet bore stemming at the expense of the rocking of the stand, and the clearing barrel entering the well produces hydroturbation by the amount of the chips being removed. In the process of washing the chips, both semi-supports, with their hydraulic cylinders 11 and 12, burst into the soil and roof, which prevent the movement of the stand from the reaction of the stream of the cleaning shaft. It is provided in this way. High-pressure water from the rod goes to switches 23 and 24, valves 33 and 37, to intermediate valves 41. Flanges 19 and 20 of transition rod 7 through rods 21 and 22 of switches 23 and 24 keep their spools 25 26 in the extreme upper position, overcoming effort

springs 31 and 32. When this pressure water through the channels from the switch 24 enters the front cavity 39 of the distributor 37 and moves the spool 38 down. This leads to

that the pressure water from the switch

37 enters cavity 43 of intermediary 7: distributor 41 and moves

its spool 42 is down due to the opening of the valve 47, which communicates with the atmosphere and the spring 49 of which is set only for force, exceeding -: spread the force of the spring 44 and distribute 41.

Water from the distributor 41 enters the cavities 16 of the hydraulic cylinders 12 of the asopor 9 semi-support 9. The cavities 18 of the hydraulic cylinders 12 are communicated through the distributor 41 with discharge into the atmosphere. Therefore, hydraulic cylinders 12 ra, heal the half support 9 between the soil and the roof. With the drain communicated and the cavity 13 of the hydraulic cylinders 10 advances. At the same time, the water from the switch 23 enters the cavity 35 of the distributor 33 and moves it to the downpipe 34 downwards, which allows high-pressure water to enter the cavity 15 of the hydraulic cylinders 11 of the semi-support 9 and the valve 48.

The valve 48 cannot open, since the cavity 44 of the distributor 41 is in communication with the head. The cavities 17 of the hydraulic cylinders 11 are connected by channels with discharge into the atmosphere, therefore the semi-support 8 is also distributed by the hydraulic cylinders 11 between the soil and the roof. The cavities 14 of the shifters 10 of the shifters are connected with the drain. When unpacked both poluopora occurs clearing recess.

 After washing off the chips, from the machine 1, the feed is staged 2 on the amount of new chips being removed. When this happens the following. The wellbore 6 enters the hole drilled by the trunks 5 by the amount of chips to be removed. At the same time, the flanges 19 and 20 of the transition rod retract from the rods 21 and 22 of the switches 23 and 24. Their spools 25 and 26 move downwards under the action of springs 31 and 32. In this case, the pressure water from the switch 24 enters the cavity 40 of the distributor 37 and moves it upside down 38 upwards, which is indicated by the reservoir 43 of the distributor 41 with discharge into the atmosphere, blocking its supply line.

The spool 42 of the distributor 41 under the action of the spring 44 remains in the lower position, ensuring the thrust of the half-supports 9. The pressure water from the switch 23 enters the cavity 36 of the distributor 33 and moves its spool 34 upwards. In this case, the cavities 17 of the hydraulic cylinders 11 of the thrust of the semi-supports 8 and the cavities of the 14 hydraulic cylinders 10 of the shifters communicate with the pressure

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12899854

and the cavity 15 gipotsilirzdrov

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11 - with what the semi-strut is removed

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the supports 8, and since the cavities 13 of the hydraulic cylinder in the advances remain connected to the drain, the semi-support 8 is tightened.

The thrust of one semi-support 9 prevents the drill rod from deflecting from the cleaning jet stream, which ensures its orientation during the movement of the semi-support 8. When the semi-support 8 is pulled towards the flange 19 of the transition rod, the rod 21 of the switch 23 moves its spool 25 to the upper position. Pressure water enters the cavity 35 of the distributor 33 and displaces its valve 34 down. In this case, the cavities 14 1 of the shifting cylinders 10 1 are in communication with the drain, and since their cavities 13 are still in communication with the drain, the movement of the half-support 8 stops.

Simultaneously with the discharge, the rollers 17 of the hydraulic cylinder 11 thrust are reported. Their cavities 15 communicate with the pressure and the half-pillars 8 are ground between the soil and the roof. As soon as the pressure in the cavity 15 of the hydraulic cylinders 11 reaches the working pressure, the valve 46 connected with them opens, the spring 48 of which, together with the spring 44 of the distributor 41, is adjusted to this pressure. The high-pressure water, entering the cavity 45 of the switch 41, moves its spool 42 upwards. Since the spring 49 of the valve 47 is set to a greater force than the spring 44 of the distributor 41, the valve 47 remains closed. Moving up, the spool 42 communicates with the discharge cavity 16 hydraulic cylinders 12 poluopora 9, and cavity 18 - with pressure. The thrust of the half-support 9 is relieved.

Simultaneously with the pressure, the cavities 13 of the shifter hydraulic cylinders are communicated and the semi-pole 9 is moved.

Claims (1)

Pressure water enters the cavity of the 39-distributor 37 and moves; its spool 38 down. At that, the cavity 43 of the distributor 41 communicates with the pressure and its spool 42 moves downward, opening the valve 47. The valve il communicates the cavities 13 of the shifting cylinders 10 with the drain, and since their cavities 14 are in communication with the drain, the movement of the half-supports 9 stops. Simultaneously with the discharge, the cavities 18 of the hydraulic cylinders 12 of the expansion are communicated, and their cavities 16 communicate with the pressure and the half-supports 9 are thawed. When both half-supports are unstuck, the new chips are washed and the advance well is deepened. When a drilling rig is fed by the amount of new chips, the process of sequential automatic shifting of the semi-support is repeated. Invention Formula Hydraulic drilling installation, including machine with rotator, drilling having become a lamp, a hydraulic actuator with a transition bar and support, which, in order to increase reliability by providing direction and automatic control, the support of the actuator is made of two half-supports connected by shifting cylinders and equipped with distributors and hydraulic switches with rods having pressure and discharge channels, and the transition bar is equipped with flanges that interact with the rods of hydraulic switches, and hydraulic switches and distributors Posted in General flow channel with the cavity drilling rod and with discharge - with atmo- feroy. Type A nineteen YU 12 Editor I. Casard Order 7880/30 Compiled by V. Pushkreky Tehred A. Kravchuk, Proofreader L. Patay Circulation 477 Subscription VNIIPI USSR State Committee for Inventions and Discoveries 4/5, Moscow, Zh-35, Raushsk nab. 113035 Production and printing company, Uzhgorod, Projecto st., 4 FIG. 2