The executive body of the coal combine
(57) Abstract:Usage: in the mining industry for mining, such as coal, oil shale, potash and other inventive rotor with buckets made in the form of a cylindrical drum, the end surface of which is provided with an additional buckets arranged in a spiral from the center to the periphery, and on the cylindrical surface of the rotor buckets are arranged along a helical line coincident with the direction of the spiral screw loaders, augers which are located on the inner surface of the rotor can move smitten rock mass from each bucket in the discharge zone through a window located at the exit of each of the screw. The drive shaft is rigidly connected to the rotor, is made hollow and communicated with the cavity of the rotor for collecting dust. To prevent the rock mass in the cavity of the shaft of the rotor flange mounted bumpers. The hollow shaft is connected by a duct with hidroelektra with irrigation zone of destruction of a rock, sucking dust-Laden air from the rotor of the Executive body and utilization of moistened dust in the rock mass. For separating dust from the mountain mass of the hollow shaft can be Soane in the mine when the Shearer cutting and improving the efficiency of dust suppression. 2 C.p. f-crystals, 4 Il. The invention relates to the mining industry, namely the working bodies of mining machines, and is intended for the extraction of minerals, such as coal, oil shale, potash salts, and others.Known Executive body of the coal combine, comprising a casing, cutting disc and screw, loading the blades of which are equipped with disc cutters, located on brackets along a helical line, the direction of which is opposite to the direction of the spiral auger (ed.St. USSR N 1195002, E 21 C 25/04, 1985).The disadvantage of the Executive body is that work items (cutting disc, disk milling cutter and screw) located outside the housing and the process of destruction, transportation and loading of minerals is accompanied by a significant release of dust (such as coal), the suppression of which requires the use of energy-intensive humidification systems or spray and the cutting zone, or the use of dust collecting systems.Closest to the proposed invention is the Executive body of the coal combine, consisting of a rotor with buckets, equipped with cutting tools, gear, screw loader and razdelitel been planetary gear, installed between the auger and rotor.The disadvantage of the Executive body of the coal Shearer is the presence, in addition to the gearbox, special planetary gear, which greatly complicates the design, and the Executive body time-consuming to manufacture, which in turn reduces its reliability. In addition, the Executive body is also a source of dust in the mine, and for dust suppression must use energy-intensive humidification system and irrigation or aspiration of dusty air.The task to be solved by the invention is to simplify the design and reduce airborne dust in the mine when the Shearer cutting.The technical result that can be obtained by using the invention, is that repulsed the rock mass along with dust gets inside the valve body, where the dust is sucked through the hollow shaft, and the created negative pressure in the enclosure provides dust and from the cutting zone and recycling it in the smitten rock mass. In addition, preliminary localization of the source of dust sposoben CLASS="ptx2">The essence of the invention lies in the fact that the Executive authority of the coal combine harvester, comprising a rotor with buckets, equipped with cutting tools, screw loader and gearbox, the rotor is constructed in the form of a cylindrical drum, the end surface of which is provided with an additional buckets arranged in a spiral from the center to the periphery, and on the cylindrical surface of the rotor buckets are arranged along a helical line coincident with the direction of the spiral screw loaders, augers which are located on the inner surface of the rotor can move smitten rock mass from each bucket in the discharge zone through a window located at the exit of each of the screw, this drive shaft is rigidly connected to the rotor, is made hollow and communicated with the cavity of the rotor for collecting dust, and the rotor cavity is separated from the cavity of the shaft support. In addition, the hollow shaft may be connected by a duct with hidroelektra with irrigation of the cutting zone (fracture) of the massif and sucking dust-Laden air from the rotor of the Executive body or is connected with the suction device.In Fig. 1 shows the Executive body of the coal harvester; Fig. 2 is a cross section along a-nologo harvester includes a rotor 1, made in the form of a cylindrical drum rigidly connected therewith the hollow shaft 2 and the gear 3 (Fig. 1).The rotor 1 on the cylindrical surface has buckets 4, located along a helical line, and the end surface of the rotor is provided with an additional 5 buckets arranged in a spiral from the center to the periphery. Buckets 4 and 5 provided with cutting teeth 6 (Fig. 2).On the inner cylindrical surface of the rotor 1 set screw loader 7, the direction of the screw coincides with the helical arrangement of the bucket 4. The output of each of the screw 7 in the flange 8 has a discharge box 9 for issuing mineral on the conveyor 10. The internal cavity of the rotor 1 is in communication with the hollow shaft 2 of the Central hole 11 in the flange 8.In turn, the hollow shaft 2 is connected by a duct 12 with hidroelektra 13, the nozzle 14 is directed to the rotor 1 with 4 buckets and in the cutting zone for irrigation smitten rock. Thus hydroureter 13 is suitable for sucking dust-Laden air from the cavity of the rotor 1, where in the process of conveying screw 7 loader rock mass releases a significant amount of dust. Against the buckets 4 and 5 are window 15 (Fig. 2) designed for prog is generated by hidroelektra 13.To prevent smitten rock mass in the hollow shaft 2 through the window 11 on the flange 3 is fixed baffles 16.For suction and dust from the rotor 1 hollow shaft 2 can be connected to the duct 12 with a suction device (not shown).The Executive body of the coal combine works as follows.The torque from the gear 3 is transmitted to the hollow shaft 2 and the rotor 1 which rotates the bucket 4 and 5 produces the destruction of the array of minerals, capture smitten rock mass and feed it to the inside of the rotor 1 through the Windows 15. Then repulsed the rock mass screws loader 7 is transported to the unloading boxes 9 and fed to a conveyor 10.In the process of work of the Executive body of the coal miner in the area of destruction of a rock through the nozzle 14 hidroelektra 13 is liquid for suppressing dust generated. This sprayed liquid jet ejective dusty air from the cutting zone and the rotor 1 through the window 11, the hollow shaft 2, the duct 12 and wets the particles of coal dust. Coal dust soaked in the form enters the cutting zone and recycled back into the rock mass.In the case of the connection of the hollow shaft the use of the invention allows comparison with the prototype to simplify the structure of the Executive body, previously to localize the source of the dust generation due to the supply of chipped rock mass inside of the rotor, screw loader, and by creating a vacuum within the rotor, and in the cutting zone using hydroureter or suction devices, and significantly reduce energy consumption for dust in the mine when the Shearer cutting and improve the effectiveness of dust suppression. 1. The Executive body of the coal combine, comprising a rotor with buckets, equipped with cutting tools, screw loader and gearbox, characterized in that the rotor is constructed in the form of a cylindrical drum, the end surface of which is provided with an additional buckets arranged in a spiral from the center to the periphery, and on the cylindrical surface of the rotor buckets are arranged along a helical line coincident with the direction of the spiral screw loaders, augers which are located on the inner surface of the rotor can move smitten rock mass from each bucket in the discharge zone through a window located at the exit of each of the screw, while the drive shaft is rigidly connected to the rotor, made hollow and communicated with the cavity of the rotor for collecting dust, and the rotor cavity part of the al is connected by a duct with hidroelektra with irrigation zone of destruction of a rock and sucking dust-Laden air from the rotor of the Executive body.3. Executive authority under item 1, characterized in that the hollow shaft is connected with the suction device.
FIELD: mining industry.
SUBSTANCE: combine has main body, drive, feeding mechanism and executive tool, which is made in form of drum with horizontal rotation axis. It is placed at non-straight angle to longitudinal conveyor axis and is turned in horizontal plane in direction providing for displacement of trajectory of coal output towards conveyor. Drum has cylinder, on outer surface of which in certain order cams with cutters are fixed. Inside the cylinder three or five electric engines are placed. These are inserted in parallel in recesses of fixed body with inner teeth of sun ring of planetary gear, which interact with three satellites. Output shafts of three or five electric engines interact with one common cog-wheel. It is placed coaxially with planetary gear and engaged with it by torsion shaft having two cog tail pieces. One of tail pieces interacts with inner slits of wheel hub, and another interacts with teeth of three satellites of planetary gear. Mechanism for hoisting drum mechanism along bed massive has handle raising jack and handle with horizontal rotation axis placed in horizontal plane at non-straight angle to conveyor axis and turned to direct displacement of executive tool towards pit-face. Shoes of stability mechanism for combine are provided with reverse clamps for shelves on front pit-face and back dump sides of conveyor. Back support of conveyor on soil is placed on dump end of inter-section beams. Combine feeding mechanism has drive for chainless feeding system and leading sprocket. Sprocket interacts with fingers of conveyor rack. Drive is placed beyond handle of executive tool and is made in form of separate electric engine with reducer of self-braking worm type. Engagement of sprocket with fingers is guaranteed by reverse clamp of reducer engaging back planes of conveyor rack carrying these fingers. In method for loading coal on conveyor, drum rotation axis in plane around vertical axis is turned in certain direction to turn trajectory of coal towards conveyor. Movement of mining drum along conveyor is performed first along ceiling, and then along soil along coal output direction while providing for cleaning of soil in direction of frontal movement of conveyor to pit-face.
EFFECT: lesser dimensions, lesser mass, higher quality of operation.
FIELD: mining equipment, particularly auger cutting tools of narrow-cut mining machines used in production faces for underground mineral excavation.
SUBSTANCE: auger cutting tool has cylindrical body and loading blade with screw surface on which cutter holders with cutters are installed. Generator of the screw surface is curvilinear and has concave surface arranged from working blade surface side. Radius of curvature provides 40-50° angle defined between lines tangent to outer circle of screw blade and to blade generator in point of their intersection.
EFFECT: increased efficiency of auger cutting tool.
FIELD: mining, particularly cutter-loader drums, for instance pick lacing thereof.
SUBSTANCE: cutter-loader drum comprises cylindrical body with outer cylindrical surface, guiding members extending from cylindrical surface. Each guiding member is inclined relatively longitudinal drum axis. Each guiding member has a number of cutters having front surface, rear surface and side surfaces arranged so that front and rear surfaces are located between side ones. As drum rotates the cutters pass along cutting paths. Cutters moving along adjacent paths are spaced 30-100 mm apart in longitudinal direction. Said distance is measured between neighboring side surfaces of cutters moving along adjacent paths.
EFFECT: elimination or reduction of cutter wear and dust generation.
6 cl, 5 dwg
SUBSTANCE: invention relates to the mining and can be used in mining machines for coal cutting and breaking the soft ores, e.g. kimberlite. The movable operating element of the mining machines contains the screw conveyer with the inclined spiral cutting strip consisting of the separate sections projecting above the screw conveyer's blade. The section of the spiral cutting strip are placed alternately to each other at the distance L equal to 0.3D of the angle diameter D of the loosened fragment, have the width B equal to D - the angle diameter D of the loosened fragment. The angle of inclination to the contour line of the upper side of the breaking segment is taken as 7°, and the angle of inclination to the contour line of the inner side of the breaking segment is taken as 47°.
EFFECT: area of application of machines for coal cutting and soft ore breaking is broadened.
SUBSTANCE: facility for milling and/or drilling rock or similar materials consists of spindle drum assembled on support and intended to rotate around axis; several rotating cutter spindles are installed in drum eccentric to axis of drum. On their ends projecting out of the spindle drum the cutter spindles bear working tools. At least two of cutter spindles are actuated from a common reducing drive, which has driven tooth gears stationary arranged on the cutter spindles and a common drive element interacting with driven tooth gears. Also the drive element and the spindle drum are assembled so as to provide their rotation relative to each other.
EFFECT: processing hard materials at high efficiency of milling, increased operation life of tools, high operational reliability and compactness.
55 cl, 22 dwg
SUBSTANCE: in order to enlarge the range of simultaneous processing and versions of control of a cutting force in the processing zone, formation of destruction zones is performed considering strength characteristics of rock as to width of the processed surface at variation of functional and technological parameters and their rational combination under conditions of selective development of deposits with complex structures. Strength characteristics of rock are fixed by mine rock strength recording sensors connected through a system block to a control system of operation of hydraulic cylinders, and drum balance is provided by distributed offset of hydraulic cylinders. Pressure of working liquid in piston cavities of the hydraulic cylinders is designed for a force required for rotation of turning levers.
EFFECT: increasing productivity, improving reliability and enlarging technological efficiency of destruction of rocks of different strength and coherence degree by controlling a cutting force in a zone of processing and formation in a surface layer of the processed massif of destruction zones considering strength characteristics of rock at selective development of deposits with complex structures by means of open-pit surface miners.
2 cl, 6 dwg
FIELD: disintegrators and devices for crushing.
SUBSTANCE: invention relates to device for drilling with rock, minerals and other materials crushing. Device for drilling with rock crushing comprises drum support, first and second drum tool magazines installed on support device of drum side by side in double layout, with possibility of rotation around axis of drums. At that, drum tool magazines include multiple tool supports, which carry cutting tools and are arranged so that they are distributed along periphery of drum tool magazines. Multiple tool supports of drum tool magazine have axes, installed transversely in relation to drum axis. At that, axes of tool supports shafts of first drum tool magazine describe first around drum axis, and axes of tool supports shafts of second drum tool magazine describe second conical surface around axis of drum, where two conical surfaces are open on opposite sides. Rotation direction of tool supports of first drum tool magazine is opposite to rotation direction of tool supports of second drum tool magazine.
EFFECT: providing equally good performance regardless of direction of movement of drum tool magazine; invention relates to device for drilling with rock, minerals and other materials crushing; providing equally good performance regardless of direction of movement of drum tool magazine.
14 cl, 3 dwg
SUBSTANCE: invention relates to an apparatus for the milling cutting of rock, minerals or other materials in particular of hard materials. Apparatus for the milling cutting has a tool drum working member, which is mounted on a drum carrier rotatably about a drum axis and on the peripheral shell surface of which are disposed, in distributed arrangement, a plurality of tool carriers which carry cutting tools. Tool carriers can be rotatingly driven, wherein their shaft axes run transversely to the drum axis. It is proposed with the invention that a first group of tool carriers and a second group of tool carriers are provided, wherein the rotational direction of the first group is counter to the rotational direction of the second group.
EFFECT: technical result is good milling cutting results for cutting tools in both rotational directions of a tool drum working member.
18 cl, 7 dwg
SUBSTANCE: group of inventions relates to a mobile mining machine, in particular, for driving and advancing tunnels. Method for driving tunnels, drifts and mines with the help of the mining machine, with a movable machine base frame, with (at least) one tool drum, which comprises a bearing frame with at least one drum tool magazine, which can be rotated about a drum axis and has stripping tools, arranged on the circumference of the tool drum, with a rotary drive for the tool drum, with a boom device, with a swinging device for the tool drum with a rotating device for rotating the boom device relatively to a movable machine base, and with a rotary device for tilting of the arrow-shaped device. Boom device has a supporting arm, on which the tool drum 50 is mounted, and a separate swinging base arranged to turn relative to movable machine base, by means of Rotating device. Supporting arm and the swinging base being connected to one another by means of a system of guide bars, providing adjustment of the setting angle of the drum axis in relation to the swing axis. System of guide bars, preferably formed as a trapezoidal four-bar linkage mechanism and has the first bracket on the side of the supporting arm and the second bracket on the side of the swinging base, which are connected by means of levers.
EFFECT: technical result is ability to bring about the driving and advancing of tunnels, roadways and shafts as well in hard rock with a high extraction rate and low tool wear.
33 cl, 24 dwg
FIELD: mining industry.
SUBSTANCE: invention is related to mining plant for extraction of mineral materials, lying in the form of formations or mass of the deposit containing conveyor device to make material and also containing tunneling combine. Combine production unit contains at least one pair of drums, equipped with tools for development of material and coaxially installed on rotary arm and adjusted in height relative to bed machine with the help of rotary hand. Axis of the indicated pair of drums, in fact, is parallel to direction of movement of heading machine. Tools for development of material are arranged in groups on tool supports, arranged along circumference of every drum of the above pair of drums with possibility of rotation around axes located across the axis of the above pair of drums. Rotation axes of tool supports on the first of the above pair of drums are arranged at an angle of 90°-γ relative to the axis of the first drum, and the rotation axes of tool supports on the second of the above pair of drums are arranged at an angle of 90°+γ relative to axis of the second drum.
EFFECT: technical result is high efficiency of extraction of material and reduced wear at the same time.
19 cl, 6 dwg