Method and device for removal of destroyed rock from the tunnel shield
(57) Abstract:The method and apparatus relate to the field of mining and are designed for removal of destroyed rock from the tunnel shield. The method includes transporting rock from the face set in the tunneling shield screw conveyor and continuous mixing rock with hardener. Mixing rock with hardener produce at its exit from the screw conveyor, and then lead seal formed mixture. The method is carried out using the device to remove the destroyed rocks from the tunneling shield containing a pipe attached to the wall, the conveyor placed inside the pipe, the mechanism of mixing rock with hardener. For filing breed and hardener are made in pipe holes for the supply of the hardener and the hole with a valve for release of the breed. These holes are located in the same transverse axis of the tube in the plane of the rear end, which is also two shoulders lever mechanisms seals associated with the dampers. The method and the device allow to increase the reliability of carrying out excavating operations and to expand the scope of this method. 2 S. p. f-crystals, 1 Il. The invention Rel is OYA.It is known that the most common way to remove destroyed in the pit breed when working tunneling shield is transporting it back using a plate or scraper conveyors built into the machine (see "Mountain encyclopedia", t 4, M: Publishing house "Soviet encyclopedia", 1984, S. 269). Quite often used for this purpose, the conveying screw.The prototype of the solutions proposed are a method and device for removal of destroyed rock from the tunneling shield whereby carry out the following.1. Destroyed the breed is transported back installed in the tunneling shield screw conveyor, one which is connected with an independent drive mechanism, continuously mixing the rock with hardener.2. The device includes a pipe attached to the wall that separates the pressure chamber; a conveyor placed inside the tube, mechanism, located behind the conveyor and having the shaft of the conveyor shaft with mixing paddles. Before the mechanism in the tube is the inlet of the hardener, and the bottom at the rear end of the installed valve for release of the breed. The shafts have independent drives (see Reparaturstau breed from tunneling shield", Japan). The disadvantages of the above described method and installation for removal of the breed are a limited scope and their low reliability. This is due to the fact that the mechanism with the shaft of the mixing of transported rock vanes, productive can only be used on soils. When injected into the pipe even small amounts of rock (common case in practice), the mixing mechanism will operate in emergency mode or it will be jamming and with all the ensuing consequences. For the same reason it is not possible to use this device in the tunneling shields used for excavations in rock or half-rock to the rock.The aim of the invention is to expand the scope and improve the reliability of the method and device for removal of destroyed rock from the tunnel shield.This goal is achieved by the fact that in the known method for removal of destroyed rock from the tunnel shield, including transport rocks back and continuous mixing it with the hardener, mixing rock with hardener lead at the outlet of the screw conveyor, and then produce the su, mounted on the wall, the conveyor placed inside the pipe, the mechanism of mixing rock with hardener, made in the pipe feed holes of the rocks of the hardener and the hole with a valve for release of the breed, the inlet of the curing agent and the hole with a valve for release of the breed are in the same transverse to the pipe axis plane one above the other on the rear end of the pipe, which is two shoulders lever mechanisms seals associated with the valves.The following drawing shows a General view of the proposed device, which gives an idea about the way to remove the destroyed rocks from the tunneling shield, its distinctive characteristics in comparison with the prototype.The device comprises a tube 1 with an interior screw conveyor 2. In the pipe 1 has three holes: 3 - for admission destroyed cutter body tunneling shield rocks on the gathering conveyor; 4 for the supply of hardener from the screw conveyor flow breed in form 11, which are subsequently condensed mechanisms seals, such as vibrators. Holes 4 and 5 are in the same transverse plane one above the other. On hole 5 is set two Naklua 9, mounted on the pipe 1. At the ends of the lever 9 fixed mechanisms of the seal 10 (as mentioned above, it can be vibrators of various designs). Two shoulders lever 9 is connected, moreover, with managing their mechanism, for example a hydraulic cylinder, ndwiga or pushing a rod which you can raise or lower the lever 9 (in the drawing, the control mechanism is not shown).The device operates as follows. The waste stream is transported by a screw conveyor 2 through the pipe 1 to the 5 hole. At the same time in the hole 4 is supplied hardener (possible supply of hardener under pressure, under its own weight, continuously or periodically depending on the required quality of the product obtained in the form of 11). Mixed with hardener breed comes on sloping trays 6 to the 5 hole. Depending on which of the valves 7, overlying the hole 5 is opened, the waste stream is directed to the corresponding form 11. In the opposite form 11 at this time is seal rocks seal mechanism (the latter is processed on the breed). After filling out the form breed two shoulders lever 9 is translated to a new position, the result is a previously opened valve 7 zakryvai the breed, and the cycle repeats. At the same time form 11 with compacted rock is removed from the device and in its place is set empty.Failure in the known device from the mechanism of mixing blades, a transition on the way to remove rocks, including seal treated with hardener breed in forms allow you to use this device not only the excavation excavations in soils, but also on rocky rocks. This method and device for its realization can be used in circuits with use of screw conveyors, but also other vehicles, such as scraper and plate conveyors, cranes. Additionally, using the form in which the seal rocks, of various sizes and configurations, you can end up getting various products, including for use in mine conditions. 1. The way to remove the destroyed rocks from the tunneling shield including transportation breed ago established in the tunneling shield screw conveyor and continuous mixing rock with a curing agent, characterized in that the mixing rock with hardener produce at its exit from the screw conveyor, and then lead uploadresume pipe, mounted on the wall, the conveyor placed inside the pipe, the mechanism of mixing rock with hardener, made in the pipe feed holes of the rocks and hardener and an aperture with a valve for release of the breed, characterized in that the inlet of the curing agent and the hole with a valve for release of the breed are in the same transverse axis of the tube in the plane of the rear end, which is also two shoulders lever mechanisms seals associated with the dampers.
FIELD: mining industry, possible use for mechanization of operations in underground mines, in particular for cleaning ore fines and backfill material out of inter-rail space and side zones of railways, and also for other cleaning operations at haulage ways.
SUBSTANCE: self-propelled loading machine for mining operations contains bearing frame with rail type propulsion devices, and following devices, held on the frame: operator booth, transporter with loader, equipped with toothed bucket, interacting with rods of hydro-cylinders of its engine. Transporter in loading zone is positioned asymmetrically relatively to longitudinal axis of the machine, while operator booth is displaced in opposite direction relatively to transporter. Bearing frame is provided with bent frame capable of rotation in horizontal plane, fastened to which are bodies of hydro-cylinders of loader bucket, and bucket is provided with beams, one support of which is connected to body of corresponding hydro-cylinder, and another support - to its rod. Bucket is additionally equipped with traction bars, which are jointly connected to bucket by one end, and by other end are connected to rotary bent frame, while bottom of bucket is made with side shelves of angled shape, while unloading zone of bucket is provided with lengthening piece, and transporter is equipped with collapsible inclined drops, projecting beyond its dimensions in horizontal plane. Operation booth is located in zone of connection with inclined collapsible drops.
EFFECT: increased compactness, maneuverability and universality of machine, improved quality of cleaning of inter-rail and rail-adjacent space.
3 cl, 6 dwg
FIELD: automated vehicle control means adapted to be used in underground environment and vehicle control methods.
SUBSTANCE: control method involves determining vehicle route from distances between vehicle and mine wall measured by means of vehicle sensors, angular vehicle velocity and left and right vehicle wheels or caterpillar velocities, as well as vehicle acceleration with the use of controller to direct vehicle to the nearest route point. Control system has distance and angular position measuring means to determine position of movable bridge conveyer 10 and angular position of associated face chain conveyers 30. Electronic controller receives input data from each sensor at each movable bridge conveyer 10 to calculate position and direction of bridge conveyer 10 and face chain conveyers 30. Controller plans optimal movement route and calculates speed of each independently acting caterpillar unit of bridge conveyer.
EFFECT: increased accuracy of conveyer system position determination.
16 cl, 10 dwg, 1 tbl
FIELD: mining, particularly mining machinery manufacturing.
SUBSTANCE: cutter-loader comprises conveyer, loading crane with lugs, hitch to connect loading crane with conveyer. The hitch is arranged over loading crane and includes two rings having inner diameters exceeding conveyer width. The rings are coaxial one to another and connected with each other so that the rings may perform mutual rotation. One ring is fixed to conveyer. Another ring has webs provided with vertical slots and enclosing loading crane. The webs are connected to loading crane by means of horizontal axis passing under loading crane through vertical web slots and loading crane lugs.
EFFECT: increased loading crane stability in transversal direction and improved reliability of loading crane connection with cutter-loader conveyer.
FIELD: mining machinery manufacturing, particularly mining machines.
SUBSTANCE: loading tool comprises frame, reduction gears, loading discs and rock cutters. Rock cutters are made as flat plates fixedly secured to frame and arranged under loading discs. The rock cutters are provided with fingers transversal to plate planes and rigidly connected thereto. Free ends of the fingers are arranged in loading discs and are coaxial thereto so that the loading discs may rotate about fingers.
EFFECT: increased structure workability and operational device reliability, possibility of loading disc support provision along with simultaneous cantilevered rock cutter end connection.
SUBSTANCE: invention relates to the field of mining, namely, to devices for collection of broken rock from tunneling machine in process of underground mining. Device for removal of broken rock from tunneling machine comprises pipe fixed on partition, conveyor installed inside pipe, holes arranged in pipe for supply of rock and hardener, mechanism of mixing rock and hardener in moulds and opening with gate for rock discharge, which are arranged in the same plane that is transverse to pipe axis at its back end, where a double-arm lever is also installed with compaction mechanisms, being connected to gates. Besides device is also equipped with pump for supply of binder into moulds. Moreover, in order to start and stop a mentioned pump, at each yoke of double-arm lever there are levers fixed, being installed with the possibility of closing and opening of limit switches contacts installed at the back wall of pipe.
EFFECT: increased reliability of operation in device for removal of broken rock from tunnelling machine, improved quality of finished products manufacturing.
SUBSTANCE: invention relates to mining. A complex comprises a receiving wedge part with a loading module, a hopper for exploding and loading, an unloading scraper part, a self-movement mechanism, a pump station, a control panel, a hydraulic manipulator with a drilling machine on a portal trolley moving along a loader column, a safety support made of safety shields and stands, moving along guides at hopper boards with the help of sliding carriages. At the same time safety shields have two sections, the front section is hingedly attached to the rear section, and is made as capable of turning down by means of two hydraulic cylinders, arranged under safety shields, at the same time the front section is lowered before blasting and lifted afterwards from a panel of complex control.
EFFECT: improved design of a tunnelling exploding-loading complex.
SUBSTANCE: complex comprises a receiving wedge part with a loading module, a hopper for exploding and loading, an unloading scraper part, a self-movement mechanism, a pump station, a control panel, a hydraulic manipulator with a drilling machine on a portal trolley moving along a loader column, a safety support moving along guides at hopper boards with the help of sliding carriages. At the same time the inner part of guides at boards of the hopper for exploding and loading is arranged in the form of a geared rack, and wheels of sliding carriages of the safety support - in the form of geared wheels moving along the rack, besides, movement to geared wheels is transferred from electric drives installed inside sliding carriages, and their supply is provided by electric cables wound onto drums installed in a tail part of the hopper for exploding and loading and having a mechanism of automatic winding making it possible to pull a cable from a drum as sliding carriages move along the hopper to the bottomhole, and to wind the cable back onto the drum as sliding carriages move away from the bottomhole.
EFFECT: improved design of a tunnelling exploding-loading complex, reduced labour intensiveness and higher efficiency of tunnelling works.
FIELD: machine building.
SUBSTANCE: tow hitch is made in the form of rods, eyelets and two mutually perpendicular axles of different diameters, with a smaller diameter axle that passes through a hole in the large-diameter axle for rotation and is connected through the eyelet with a thrust, and the axle of diameter is inserted with a gap into eyelets of a stretcher section of the loading elevator.
EFFECT: free movement of the machine in three directions with respect to the loading elevator, simplified design, reduction of overall size and weight of the loading elevator.
SUBSTANCE: invention relates to heading blast digger with safety lining. It comprises intake wedge part with loading module, bin for blast loading, unloading scraper part, self-propulsor, pump station, control board, hydraulic manipulator with drill rig at gantry car displacing over stage loader support. Note here that tail part of blast loading bin accommodates lining placer consisting of two props equipped with mount fork shaped in a definite way. Note here that said shape allows accommodation of fasteners composed of top and bottom sheets of metallic gauze reinforcements and top and bottom sheets of metallic strip grabs shifted relative to each other. Note also that said forks are connected by crosswise bar and arranged to be displaced relative to said props up and down by hydraulic cylinders. Said forks are lifted and lowered by control board.
EFFECT: mechanised walling system.
FIELD: mining operations.
SUBSTANCE: invention relates to the mining industry and can be used for loading of rock mass when excavating and at stoping works. The loading machine comprising a chassis with a drive, a receiving plate, paired pallet handles with straight working part and a curved tail part, drive discs, crank arms, receiving reloading scraper conveyor. At that the curved tail part of the pallet handle is made arcuated with the outer convex and with a constant radius of curvature equal to R=2L, which is removably connected with the crank arm hingedly connected on the receiving plate at a distance of X=0.2L; Y=0.7L from the centre of rotation of the drive disc, where L is the length of the straight working part of the handle, X, Y is the distance from the centre of the crank arm hinge to the centre of rotation of the drive disc, respectively, horizontally and vertically.
EFFECT: increasing the productivity of the loading machine by increasing the area of capture of bulk cargo, placed in the trajectory, covered by the front handle edge of the receiving plate.