SU1229334A1 - Drilling/cutting working member of entry-driving machine - Google Patents

Description

The invention relates to the mining industry, in particular, to the design of the executive body of a roadheader.

The purpose of the invention is to increase the efficiency of destruction of strong rocks by reducing the hydraulic losses in the hollow drill rod during the moment of water pressure pulse.

12293342

The crown 11 for reciprocating movement has a hydraulic cylinder 16 ..

All of the above parts and assemblies mounted on the frame 17 of the executive body of the ,, -otor which can be moved with the help of a hydraulic system (not shown) relative to the body of the combine,

White Cleaving Executive

The drawing shows a harvester, the organ of the combine; works as follows

the executive body of the combine.

A drill rod 1 with a drill bit 2 and apertures 3 at the front end is connected at its opposite end to a hydraulic impulse system 4. A low-pressure pipe 5 supplying water to the hydraulic impulse system 4 and into the bore hole through the rod 1 to flush the hole; it is protected at the moment of pressure impulse by a check valve 6. For rotation of the drill rod there is a hydraulic motor 7 displaced from the axis of the drill rod and for reciprocating.

With the help of the undercarriage, the combine moves to the bottom, and the performer (5th body using hydraulic cylinders (not shown) moves to the place of the alleged destruction of the rock, then the drilling of the drill hole with flushing and feeding of the drill bit 8, with the rotation of the drill rod is provided by the engine 7. After being driven to a depth of about 0.8 - 1.0 m by a hydraulic cylinder 10, the

moving it together with the hydraulic 25 pipe 9 is pushed into the hole in the deep-hydraulic impulse installation - hydraulic jack 8.

On the drill rod there is a sealing pipe 9, the outer diameter of this pipe is equal to the diameter of the drill bit 2. The sealing pipe 9 is connected to the hydraulic cylinder 10, with which it can reciprocally move along the drill rod. The sealing pipe 9, the drill rod 1 is installed in the central hole of the crowning crown 11. To rotate the crown 11, there is an engine 12 that is offset from the axis of the crown 11, the gear 13 has bearings 14 of the cutting crown 11, which are fixed in the crown rotation gear 15. Boroskaly Compiler V.Strakhov Editor G.Volkov Tekhred I.Popovich Proofreader M.Samborska

Order 2427/27 Circulation 470 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

in a way.

With the help of the undercarriage, the combine moves to the bottom, and the executive body moves with the help of hydraulic cylinders (not shown) to the place of the alleged destruction of the rock. Then, the drilling of the bore-hole with flushing and the supply of the drill rod 1 with the help of a hydraulic jack 8 is turned on, while the rotation of the drill rod is provided by the engine 7. After being drilled to a depth of about 0.8 - 1.0 m by a hydraulic cylinder 10

well, about 0.30–0.40 m. Then, pulse set 4 is turned on, which feeds several pulses of water pressure through the tubular drill rod 1 into the borehole 1, which moisten, weaken and partially beat the rock away from the massif. The final destruction of the rock is carried out by a boring stone crown 11, which has serial cutters, for example PKC-1, which during cutting moves along the axis of the drill machine by a hydraulic cylinder 16. It is also possible to simultaneously operate the brown stone crown 11, continuously drill core and feed pressure pulses into the hole. from hydraulic impulse installation 4.

Claims (1)

MILLING DRILLING EXECUTIVE BODY OF THE COMBINING COMBINE, including a drill bit mounted on a hollow drill rod mounted on the axis of rotation of the actuator, with the possibility of rotation, characterized in that, in order to increase efficiency. destruction of hard rocks by reducing hydraulic losses at the time of the water pressure pulse, the actuator is equipped with a hydraulic pulse installation mounted on the opposite end of the hollow drill rod, mounted with the possibility of reciprocating movement simultaneously with the pulse installation by means of a hydraulic jack, and a sealing shaft is installed on the drill rod pipe with the possibility of reciprocating movement, by means of an additional hydraulic jack, while the drives rotate Ia actuator body and the drill rod are offset relative to the rotational axis of the actuator body. yu si cx? Sae 4 ^