Tunneling unit

 

The invention relates to mining and can be used in the mine working. The objective of the invention is to increase the efficiency of the mine workings by increasing the speed of operations by reducing energy consumption, increasing bezopasnosti and comfortable working conditions in the mine. The drilling unit includes a crawler course, sweeper loader rock mass, excavator, electric and hydraulic actuators, control system. To perform brabolocoli method of destruction of the coal or mixed with presecco weak rocks array slaughter during the preparatory workings impact on the bottom simultaneously in three parts of the breast it is equipped with two hydraulic manipulators with Ironman bars mounted on both sides of the longitudinal axis of the Assembly, and hydraulic manipulator with wedge device along the longitudinal axis of the unit, each of which has the possibility of simultaneous and independent movement in the horizontal and vertical planes. 3 Il.

The invention relates to mining, in particular to mechanical destruction method of the array in the face when conducting mountain virobot the ore industry.

The known device for the destruction of the array in the faces of preparatory workings mechanically under the General name of tunneling machines. According to the method of processing of slaughter by the Executive bodies distinguish combines selective sequential processing area of the face and combines drilling steps, simultaneously machining the entire surface of the face.

Tunneling machines with the Executive of the electoral actions consist of swept Executive body with the cutting crown sweeper loader rock mass, the loader, crawler, electric and hydraulic drives and control systems. For the workings for coal or coal with presecco weak rocks are currently harvesters of this type is: PC-WR, PU and RSCC.

A. I. Petrov, Gg Shtumpf, P. C. Smith, G. P. Arkhipov. Mechanization of preparatory workings. M.: Nedra. 1988. -S. 38-4B, L., Grabchak and other Mining and tunneling machines and systems.- M.: Nedra. 1990. -S. 167-175, B. F., Bratchenko, M. I. Ustinov, L. N. Gapanovich and other Ways of opening, training and development systems mine fields. -M.: Nedra, 1985. -S. 298-301. Equipment for mining and preparation work. The branch directory.-/sup>) workings for coal or mixed faces with presecco up to 50% of the rocks with the hardness of f<4, the harvester RSCC to conduct similar workings for coal and mixed faces with presecco rocks with the hardness of f<6% to 75%.

Drilling harvesters are designed for the workings on rocks with high speed, but their cost in comparison with harvesters selective action with arrow-shaped body is about 8 times higher.

Combines selective action with swept Executive body have two significant drawbacks: - the destruction of the array in the slaughter is made simultaneously at one point sequential processing area of the breast of the face; despite the existence of numerous solution structures of cutting crowns, line cutting, types of cutting inserts and the increased capacity of the cutter body the energy intensity of destruction is practically not reduced (PC-3P-0.85; PU-0.8; PC-9R-0,6; RSCC-0.7 kWh/t), and the fines content in the fragmented mass of coal with size lumps class 0-25 mm reaches 85% at high dust content in the air in the pit.

The shortcomings significantly reduce the mechanical efficiency of the method of the workings - n who s working conditions in the mine.

The aim of the invention is to eliminate these disadvantages by applying a substantially new brabolocoli method of destruction of coal (soft rock) mountain massif simultaneously in three parts of the breast slaughter.

The objective is achieved by performing two main processes when conducting elaborate mechanically - destruction array slaughter and removal of the destroyed mass array of slaughter through the use of the tunnel unit. To perform brabolocoli destruction array of bottom hole Assembly has two Ironman bar on both sides of its longitudinal axis on the hydraulic manipulators and hydraulic wedge device similar to the manipulator, which is located in the region of the longitudinal axis of the unit, which is a significant feature of the proposed design.

All three behaviors are installed in special machines on top of the unit and using hydraulic jacks are moved in horizontal and vertical planes. Independent and simultaneous movement of all three behaviors is an essential feature of the design. Bearing rods manipulators can rotate around its axis, which allows placing the Ironman the TV device can be moved in vertical and horizontal planes at the ends of the bearing rods manipulators regardless of their position. Ironman bars are cutting the chains with his fists, having a socket for mounting cutting inserts. After splitting the breast slaughter using cuts on the number of blocks, the latter are separated from the array by enforcement in shear wedge having a ball joint with the rod of the device. Ironman detail and obramlennye blocks using the sweeper loader is removed from the bottom to the material handler. The left arm (with respect to the longitudinal axis of the unit) provides the production of roots in the left half of the chest bottom, while the right one in the right half. Simultaneously with the production of cuts with some delay is introduced in the work of the wedge body and then the processes of the formation and breaking of blocks are manufactured in three different parts of the breast slaughter at the same time, which is a significant feature of the proposed design of the unit.

The depth of cuts and dimensions of the blocks are determined depending on the physical-mechanical properties of coal and rock mass of the face.

Distinctive features of the proposed facility compared to the existing structures of roadheaders with mechanical destruction of the coal and rock bottom cutting authority electoral actions that can be taken for prototypes, providing and pricemax rocks f<4, that allows you to increase the speed of the workings for coal or proseccos breeds these fortresses at least two times by reducing the intensity of the destruction of the mass of the face due to changing the method of destruction of the cutting teeth on the destruction of the blocks with a significant increase in the safety and comfort of doing work by reducing dust.

The control unit of the proposed design provides for three drivers.

Thus, the foregoing features and advantages of the declared facility satisfy the criterion of "substantial differences".

In Fig.1A shows a view of the unit from above, and Fig.1B is a side view, Fig. 2A is a side view of the left electric machine of the bar, Fig.2B is a top view of the left electric machine of the bar, Fig.2B is a rear view of the left electric machine of the bar, Fig.2G - gear drives the left Ironman bar, Fig.3A is a side view of the wedge device of Fig.3b is a top view of a collar of the device of Fig.3b is a diagram of the locations of cuts in the formation of blocks of height h and width b with a trapezoidal cross-section generation.

Heading the unit consists of two Ironman bars 1,2, wedge device 3, sweeper loader rock mass 4, eey part of the body of the unit there are three machine 9 manipulators working bodies of the Assembly. On the left (with respect to the longitudinal axis of the Assembly) and the right machines mounted actuators of the handles 10 and 11, the bearing Ironman bars, consisting of hydraulic actuators move the arms in a vertical plane 12 and 13, and the hydraulic jacks 14 and 15 move in the horizontal plane and respectively hydrologically their 16, 17 and 18, 19. Jacks manipulators Ironman bars for rotation of the rod 20. 21 have a splined connection with the core, rotating the worm hydraulic actuators 22, 23. Longitudinal movement of the rods is performed by feeding a liquid through line 24 and 25. At the ends of the rods manipulators are drive electric bars 26 and 27, driven through the line 28, 29, 30 and 31, the electric Drive bars consist of actuators horizontal movement 32, 33 and drives the vertical movement 34, 35. On the Central machine 36 are the actuators of the manipulator wedge device 37 in the horizontal and 38 in vertical planes with the corresponding hydrologically 39. The wedge manipulator device has the same manipulators Ironman bars of the device, the Wedge device has a motor for rotation in a horizontal plane 40 and 41 vertical with the appropriate power ball socket rod manipulator 43.

The cutting chain bars 44, bearing fists 45 with the teeth 46, is driven by the hydraulic motor 47. The rod 48 V manipulator is moved by the hydraulic cylinder 49.

The operation of the unit (for example, the trapezoidal shape of the face of coal - width of the roof 3800 mm and a height of 3000 mm) as follows: the left bar is the first vertical undercut 50 and then the second, third, and the other towards the left side of the chest to the bottom output. In the production of the second vertical shear left bar right bar produces between vertical shear 1 right horizontal upper undercut by the excavation contour to the right side, then the second vertical shear to the right to the left and then the third, the fourth and the other to the extreme right side of the excavation contour. After conducting both bars all vertical cuts they are hollow horizontal cuts, starting from the bottom of the soil excavation. During the transition to the fourth notch below both horizontal bars, begins wedge device breaking blocks between the second and third horizontal wruble, next, between the first and second, third and fourth and then another in the upward direction. After the start of work on the separation of the blocks from m the parts of the breast bottom. After completion of the excavation bars horizontal cuts in the upper part of the breast slaughter begins their hollow vertical cuts in the new section at the bottom.

Thus, the proposed design of the tunnel unit allows to increase the speed of the workings for coal or proseccos rock fortress f<4 to 50% more than two times, while reducing the energy intensity of the destruction of the mass of the face with a significant increase in safety and comfort work against tunneling method combines with the bodies of selective action.

Claims

The drilling unit includes a crawler course, sweeper loader rock mass, excavator, electric and hydraulic actuators, control system, characterized in that to perform brabolocoli method of destruction of the coal or mixed with presecco weak rocks array slaughter during the preparatory workings impact on the bottom simultaneously in three parts of the breast, it is equipped with two hydraulic manipulators with Ironman bars mounted on both sides of the longitudinal axis of the Assembly, and hydraulic manipulator with wedge device along the longitudinal axis articales planes.

 

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