Continuous miner

 

(57) Abstract:

The invention relates to mining and is intended for carrying out excavations combine the method with selective destruction of rocks of the tunnel face. The invention allows to reduce the intensity and complexity of the design of a turntable for swept Executive body of the digging machine. Continuous miner includes swept the Executive body of the loading mechanism in the form of an inclined table with sweeper legs and centrally located conveyor, rotation device, tracked the movement mechanism and electro-hydraulic control system. Rotation device made in the form of vertical support columns fixedly mounted on the frame of the harvester. Arrow Executive body of the harvester is attached thereto by means of a bracket and two hydraulic cylinders. The bracket and the hydraulic jacks are connected with base cardan joints with limited angular rotation of the Executive body in the vertical and horizontal planes, respectively, in synchronization and opposite movement of the hydraulic Jack. 2 Il.

Tunneling machines with the election (arrow) Executive bodies are widely used when conducting mining in both domestic and foreign mining industry. This circumstance is explained by the fact that tunneling machines of this type have high mobility, adapted to the workings of various shapes and cross sections, and have significantly less mass compared with harvesters drilling type.

However, these machines have significant disadvantages, namely, that control movement swept the Executive body in the destruction of the face, as well as design rotation device the latter is quite cumbersome, complex and difficult manageable when working.

On the basis of the foregoing, there is a need to develop a turntable for swept Executive body less difficult and heavy construction with simple and reliable control.

For carrying out excavations on the mixed coal spoil the slaughter in the domestic industry are tunneling machines PC-3P, PU, RSCC, 4PPT-2, SBC-2 and others, known for his works "M is 5, C. 47-89; Grabchak L., and other Mining and tunneling machines and systems. - M.: Nedra, 1990, S. 167 - 175; Malevich N. A. Mining and tunneling machines and systems. -M.: Nedra, 1980, S. 202-222; "Machines and equipment for coal mines". Reference book /Ed. by C. N. By. -M:. Nedra, 1987, S. 209-217, 220-226, as well as in foreign practice - combines firm "Anderson-Strathclyde (UK); company "Eickhoff", "Aurat", "Westphalia", "Demag" - West Germany and others, known by the work of Malevich N. A. Mining and tunneling machines and systems. M:. The subsoil, S. 223-227.

Known continuous miner PC-SP (SC-SM) (see "Machines and equipment for horizontal and inclined mine workings" (edited by B. F., Bratchenko. -M: . Nedra, 1975, S. 48 - 56), which is designed milking preparatory workings for coal and mixed faces with presecco rock fortress to 4.

Harvester PC-3M (PC-3) consists of a swept Executive body, the frame of the harvester, caterpillar mechanism of movement, a turntable, a loading mechanism in the form of an annular conveyor loader, hydraulic and electrical systems, etc.

Executive body, consisting of motor, gearbox, shafts and cutting crowns, a hinge mounted on the rotary device at the premises of the Executive body in the vertical plane. Rotation device consists of a fixed base, which is rigidly fastened to the frame of the harvester, and swivel with ball bearing. The rotation of the rack in a horizontal plane together with the Executive authority is exercised by two hydraulic jacks attached to the frame of the harvester.

The main disadvantage of the considered harvester should include: a fairly complex structure of a turntable, which requires two pairs of hydraulic jacks to move the Executive body in the vertical and horizontal planes; the lack of telescopic extension of the Executive body relative to the turntable.

The most similar design and layout scheme digging machine and it swept the Executive body are tunneling machines PU and 4PPT-2M,(see "Machines and equipment for horizontal and inclined mine workings" /Ed. by B. F., Bratchenko. -M:. Nedra, 1975, S. 56-59, 70-79; "Machines and equipment for coal mines". Reference book /Ed. by C. N. By. M:. Nedra, 1987. C. 211-214, 220-223).

Consider harvesters have a similar layout diagram of main usly drive on each crawler truck. Harvesters PU and 4PPT-2M vary by application.

The Executive body of the digging machine PU consists of motor, reducer, arrows with the cutting chisel crown and frame, along which the motor, gearbox and boom with the crown can telescopically be nominated by a special hydraulic jacks.

Rotation device of the Executive body mounted on the chassis of the harvester and is a rotary turret, which serves to pivotally fasten it Zapf Executive body, two hydraulic cylinder of lifting of the Executive body and two hydraulic jacks of rotation of the turret with the Executive body in the horizontal plane.

The loading device of the harvester is a tilt table with sweeper legs and a centrally located scraper conveyor.

The main disadvantage of the digging machine PU is its rotation device. This disadvantage is the complexity and bulkiness of the design, there are four hydraulic jacks for lifting and turning of the Executive body, as well as the difficulty of controlling its movement.

On the basis of vycheslay for the Executive body of the digging machine.

The aim of the present invention to provide an Assembly scheme digging machine, having in its composition bearing slewing mechanism, precluding the presence of the swivel unit - turrets and reducing the number of hydraulic jacks lifting and turning of the Executive body.

According to the invention this objective is achieved in that a continuous miner for mining excavation, including swept Executive body, the loading device in the form of an inclined table with sweeper legs and centrally located AFC rotation device, tracked the movement mechanism and electro-hydraulic control system, wherein the rotation device is made in the form of vertical support columns fixedly mounted on the frame of the harvester. To support the rack attached swept Executive body, consisting of motor, gearbox, shafts with pneumatic crown and frame. The Executive body is connected with a rack support-rotating mechanism using a bracket rigidly mounted on its frame, and two hydraulic jacks equipped with kardannymi hinges that are mounted on the supporting-p the enforcement authority. They provide angular displacement of the Executive body: when synchronous movement in a vertical plane, and with a head - horizontal.

The proposed design scheme of a turntable for swept Executive body of the digging machine leads to a significant decrease of metal, reducing the number of hydraulic jacks, designed to move the Executive body in space in the process of slaughtering, simplifies and improves the hydraulic control system increases the reliability of the connecting nodes between the Executive body and the rotary support and reduces the cost of the digging machine.

Significant differences.

Continuous miner for mining excavation, including swept Executive body, the loading mechanism in the form of an inclined table with sweeper legs and centrally located AFC rotation device, tracked the movement mechanism and electro-hydraulic control system has a supporting device to which the hinge is attached swept the Executive body. The support device is made in the form of vertin its frame by means of bracket and Karandawala hinge, and two jacks. The hydraulic jacks their upper ends pivotally connected to the frame of the Executive body, and the lower through Kaganovich hinge with base. Rotation device provides angular displacement of the Executive body; in the vertical plane when the synchronous movement of the hydraulic Jack, and a horizontal - if there is oncoming traffic.

The invention is illustrated by drawings, where

in Fig. 1 is a General structural diagram of the proposed digging machine (side view);

in Fig. 1 - structural diagram of the digging machine in the plan.

Continuous miner for mining excavation consists of arrow-shaped Executive body 1, the loading mechanism 2, a turntable 3, the track of the mechanism of movement 4, the housing 5 and the electro-hydraulic control system 6. The Executive body 1 consists of an electric motor 7, gearbox, shafts chisel crown 8 and the frame 9. On the frame 9 is rigidly mounted bracket 10, which by means of a cardan joint 11 is connected with a rack turntable 3. For the angular displacement of the Executive body 1 are two hydraulic cylinder 12, which swov 13. Rotation device 3 made in the form of vertical support columns rigidly mounted on the frame 14 of the harvester. The loading device 2 consists of an inclined table with sweeper legs 15 and centrally located scraper conveyor 16. Crawler transfer mechanism 4 consists of caterpillar trucks with drive 17.

In Fig. 2 shows the structural diagram of the harvester in the plan. Rotation device 3 consists of vertical posts on which is rigidly mounted on base plate 18. The plate 18 is fixed cardan joints 11 and 13 respectively to the bracket 10 of the frame 9 of the Executive body 1 and the hydraulic jacks 12, servants to the angular displacement of the Executive body 1.

The principle of the proposed harvester next.

Depending on the physico-mechanical properties of rocks of the tunnel face is chosen the most rational scheme of its processing. Continuous miner creeper movement mechanism 4 for rotating the bumper of the crown 8 is fed to the bottom and makes a cut at a certain depth and then using a hydraulic Jack 12 is a sequential processing (resolution) of the entire area of the face. However verlorene Executive body I and III of Fig. 1), and the horizontal when the opposite movement of the pistons (cylinders) hydraulic Jack 12 (the position of the actuator I and II of Fig. 2). The second cycle of processing of slaughter is carried out without moving the harvester. In this case, the introduction of the Executive body 1 in the tunneling slaughter is done through a telescopic extension fender crowns 8 together with the shaft, the gearbox and the motor 7 with respect to the frame 9 by means of hydraulic jacks divergence (constructive circuits not shown) that are fastened to the frame 9 (the position of the actuator I and II of Fig. 1).

Further work harvester consists of repeating the first and second cycles. Simultaneously with the destruction of the slaughter of the Executive body 1 is loading rock mass loading mechanism 1.

Continuous miner for mining excavation, including swept Executive body, the loading mechanism in the form of an inclined table with sweeper legs and centrally located AFC rotation device, tracked the movement mechanism and electro-hydraulic control system, wherein the rotation device is made in the form oswoa frame attached thereto by means of a bracket and two hydraulic cylinders, when this bracket and the hydraulic jacks are connected with base mardanovym hinges with limited angular rotation of the Executive body in the vertical and horizontal planes, respectively, with simultaneous and opposite movement of the hydraulic Jack.

 

Same patents:

The invention relates to mining machines

Tunneling unit // 2046190
The invention relates to the field of mining and can be used in the mine working

Electric machine // 2046186

Continuous miner // 2039284
The invention relates to the mining industry, namely to the actuating combines continuous action, used when drilling openings in the cells

Continuous miner // 2029092
The invention relates to mining and tunneling equipment, namely, drilling machines, intended for carrying out horizontal and inclined workings

The invention relates to a loading device for loading the broken ore at a head end of the conveyor, in particular, is installed to the head end of the conveyor loading ramp designed for the mining industry heading machine, above the loading ramp at the side of the head end of the conveyor is made triangular in cross section of the loading beams that have turned to the conveyor side one steeply rising, and on the other side of the hollow rising side surface and which perform a reciprocating movement in the direction of the conveyor and each loading beam for pointing away from the conveyor side at the end of the motion path in the reverse direction is made with one of similar cross-section of the reference beam or the one supporting wall

Tunnel complex // 2006584

The invention relates to the mining industry and can be used to develop a reservoir of mineral chamber systems, the development of off-balance-sheet reserves, including dangerous dynamic phenomena

The invention relates to mining and can be used effectively for the development of diamond deposits, steeply dipping coal seams lying in difficult mining and geological conditions

The invention relates to a tunnel-mining machine that contains the tracked chassis with the drive connected to the tracked chassis and arrow with cross-cutting head located ahead of the loading device loading skirt and adjacent to the loading device, the discharge device

The invention relates to the rock bodies of mining and road-building machines for different purposes

Mountain harvester // 2005177

Cleaning combine // 2248445

FIELD: mining industry.

SUBSTANCE: device has body with ski and electric engine with hydraulic pump on it, actuating hydraulic engine for moving combine along face through cog and hydraulic engine for raising rotating reducer with screw, drive of which is integrated in rotating reducer. Combine is provided with carriage with shaft and stopping devices. Carriage is mounted with possible longitudinal displacement relatively to combine body via chain contour with drive from sprocket. On carriage shaft additional sprocket is freely mounted, engaged with chain contour and cam sleeve, and braking device for fixing rotating reducer, made of two shoulders, interconnected jointly.

EFFECT: higher efficiency, simplified construction.

4 dwg

FIELD: mining.

SUBSTANCE: device for processing of materials with milling comprises a drum holder, a tool drum, where a group of tool shafts is installed with the possibility of being put into rotary motion. At the ends protruding from the tool drum there are processing tools installed. At least two of the tool shafts are made with the possibility of being put in motion by one common drive of transmission. Axes of tool shafts are arranged across the drum axis. Tool shafts are evenly distributed in the tool drum along its perimetre. The invention also relates to the method of materials milling and application of such device or method.

EFFECT: operational reliability of the device, high efficiency of removing material of high strength.

35 cl, 12 dwg

FIELD: mining.

SUBSTANCE: method involves separate extraction of coal and rocks of interlayer with combined cutter-loader with cutting actuating element of selective action. Extraction of coal benches and rock interlayers is performed in the extracted strip per one pass of cutter-loader in ascending order - from soil to roof. Width of the extracted strip is accepted equal to length of two-sided loading element of cutter-loader. Separation of flows of broken coal and rocks of interlayer is performed in the mining face by means of two-sided loading element with shovelling blades and belt reloader equipped with diagonal plough. Separate transportation of broken coal and rocks of interlayer in mining face is performed with cantilever drag conveyor. Combined cutter-loader includes the housing installed on frame with blades; two cutting actuating elements of selective action; two-sided loading element made in the form of chute with shoveling blades installed symmetrically on both sides from longitudinal axis of chute, and belt reloader equipped with diagonal plough.

EFFECT: increasing efficiency of underground development of coal beds owing to selective extraction of coal and interlayers of more precious mineral resources and their separate transportation to the surface via transport chains of the mine.

2 cl, 3 dwg

FIELD: mining.

SUBSTANCE: proposed plant comprises machine to drill pilot well arranged in drilling room, rock cutting tool, screw to displace sludge, winch with rope and mounting trolley. Besides, it comprises equipment to reception and transfer of sludge. Note here that said winch is arranged at said mounting trolley and located in transport-sorting face. Note also that screw and cable are secured to expander on the side opposite the pilot well mouth.

EFFECT: expanded operating performances and higher efficiency.

5 dwg

Up!