The invention relates to mining and can be used for drilling thick layers with the release of minerals from the roof strata at the dam pipeline. The objective of the invention is to increase reliability by eliminating cross shield flux produced coal. Shield for work in shifting layer of thick layers of minerals to release it from the roof or miduclevel thickness on the dammed conveyor includes blocking, pivotally connected to the enclosure, the hydraulic jacks, the base console, directed toward the production of a useful mineral, shield shutter release and gidrotartrat control sliding gate, one end of which is hinged to the base. The console is equipped with two levers, one ends of which are pivotally connected to the console, the other with a sliding gate. Gidrotartrat control shield bolt other end fixed in the hinge connection of one of the levers with a sliding gate. One of the levers may be D-shaped. The shutter can be mounted in the bottom of the console. 2 C.p. f-crystals, 3 ill.The invention relates to the mining industry, in particular to rascus through the gates of sections for dispensing receipt of the rock mass from the zone of release, this provides the maximum opening of the window for release at the exit of the mineral and the ceiling of the receipt of the rock mass, when it begins to enter the waste rock collapsed roof of the reservoir.Famous shield section (see and.with. The USSR №1021788 And class. E 21 D 23/04, 1983, "the shield"), including the overlap, the hinge associated fence with adjustable levers, the base and the rack in which the shield shutter pivotally suspended on the end of the fence and is driven by a Jack. While the shield shutter made of sliding, which makes it possible to block access empty breed when it appears in the window and fully open the window when entering collapsed fossil.However, this design allows the execution of the specified function only when the maximum height of the shields. With the decrease in the height of the pivot point of the shield gate with fence down and the shield shutter even when fully drawn telescopic part cannot pass over the conveyor and open access collapsed coal loading.Change the height of the suspension point of the shutter in the process leads to unstable conditions of release in the process, what prevents the OPE is ovejero, coming from the valves located upstream of the coal, the shutter when opening intersects the body of the flow, thereby confusing the traffic from the conveyor, including the side face space, which leads to loss of production and increase the cost of manual labor grinding of minerals in the workspace.Famous shield in which the shield shutter hanging from the high console base (and.with. The USSR №1070318 And class. E 21 D 23/04, 1984).The above structure of the shield shutter pivotally suspended at a constant height from the dam pipeline, but swinging in a circular motion with the Jack shield not fully closes the window at full output in the output side, as his end away from the vertical rises.In addition, the trajectory of the end of the shield is such that when opening it also crosses the traffic moving through the pipeline.The invention aims at avoiding these disadvantages.To achieve provided by the invention of the technical result in section lining the console base, directed to the output side, is equipped with two levers, one ends of which are pivotally connected to the console, others with shito the RMU. The shield is fastened to the bottom of the console.This ensures optimal trajectory of the shield, which is the maximum possible opening of the window to release eliminates the possibility of crossing the shield flow of coal on the conveyor.The invention is illustrated by drawings, where:- Fig.1 shows a General view of the section with the bolt, side view;- Fig.2 is a detailed drawing of the shutter mechanism and the trajectory of its movement;- Fig.3 - phase motion of the bolt.The shield consists of a slab 1, the hinge associated fencing 2, base 3, are installed on the hydraulic jacks 4, and the shield 5, pivotally connected levers: front 6 and rear 7. The shield 5 is actuated by hydraulic cylinder control 8, which has one end hinged to a high console 9 of the base 3 facing the issue, the other in the hinge connection of one of the levers 6 or 7 with a shield 5. The shield 5, the levers 6 and 7 and gidrotartrat management 8 form a shutter. The shutter is fixed at the bottom of the console 9. Dammed conveyor 10 can be moved using a hydraulic cylinder 11 in step "1".To ensure maximum opening of the shutter of the window 12 for release while maintaining the dimensions of the shield 5 and the levers 6 and 7, provided the AI shield shutter of the maximally closed position And a maximally open position B due to the proposed design its end passes through the trajectory AB, without crossing profile transported by the conveyor weight no matter what the position of the conveyor under the console, the bottom surface of the shield while moving it also does not apply for this profile.The release can be performed both in the process of shifting sections, and after shifting. In Fig.3 shows the position of the shutter to shield and dammed pipeline in the release process from the roof strata.The release from the roof strata as follows.In the initial position before the release of the conveyor 10 is pulled to the shields (Fig.3 "a").In the General case closures linear shields are closed, the ends of the fully extended in the dam boards are in the lower position.After shifting section of the conveyor is under the shield, and sections ready to be released (Fig.3 "b").Upon the opening of the shield minerals comes to working dammed conveyor and is transported through the lava on the gate material handler (Fig.3 "in").The rate of production and the amount received on the conveyor fossil controlled by the height of the openable shutter window in the dam. Similarly, the shutter is used to prevent excess fossil on the conveyor and rolling it over the side of the conveyor in a slave"g"), for a complete cessation of receipt of the breed of the dam the conveyor is lifted to the grounds of the lining (Fig.3 "d"), even when the shutter is open fossil angle of repose on the conveyor is not received (Fig.3 "e").The adopted design of the closures provides the path of the shield, precluding its intersection with the flow of the fossil on the line that provides the most efficient operation of your system.Under favorable conditions of release for a more efficient operation of the valves pre-installed on the window height required for graduation (Fig.3 "in"). In this case, the release occurs upon movement of the shields to the slaughter.For a complete cessation of production is bringing up the conveyor to the grounds of shields (Fig.3 "e").The issue is in the order of movement of the sections in the lava, i.e. from the conveyor to the vent passage. Operators producing open several gates in a row or on specific groups of sections. The specific order of doing work on the issue is set empirically as experience is gained.The discharge from the dam is to produce at each shifting of the liner.Belt speed sections on the front of the lava determine the emnd roof with sliding sun visors, articulated consoles ceilings shields.The release cycle ends with the release of the last shields the ventilation drift, but by the duration it should not take longer than the notch harvester shifting layer, because when returning the harvester to the conveyor drift all of the shields and the AFC should be moved to a new face.This shield with the release of minerals from the roof strata at the dam conveyor ensures the reliable operation of lining, excluding the intersection shield of traffic on the conveyor.
Claims1. Shield for work in shifting layer of thick layers of minerals to release it from the roof or miduclevel thickness on the dam pipeline, including the overlap, pivotally connected to the enclosure, the hydraulic jacks, the base console, directed toward the production of a useful mineral, shield shutter release and gidrotartrat control sliding gate, one end of which is hinged to the base, wherein the console is equipped with two levers, one ends of which are pivotally connected to the console, the other is the CSO of the levers with a sliding gate.2. Shield under item 1, characterized in that one of the levers has a G-shaped.3. Shield under item 1, characterized in that the shutter is fixed at the bottom of the console.
SUBSTANCE: facility for connecting sections of support with conveyor consists of bracket rigidly secured on linear section of conveyor and connected with support by means of vertical hinge; support in its turn is connected with vertical ribs of beam of powered roof support section by means of horizontal hinge; hydro-cartridge for control over linear section of conveyor in vertical plane is secured on face surface of support; plunger of hydro-cartridge interacts with beam of section of powered support; also run of hydro-cartridge for control over linear section of powered support in vertical plane exceeds value of support set-off relative to beam of section of support in vertical plane; facility also consists of share located on mining side of conveyor section. The horizontal hinge is connected with vertical ribs of the beam of the section of powered support by means of two coaxial slots made in vertical ribs; also each of slots in vertical plane on ends has rounding with chamfers, the top of the angle between which in each vertical slot is directed to support.
EFFECT: increased functionality of facility under conditions of dirtying due to less dirt ingress and due to self-cleaning capacity of slots during main process operations of facility.
SUBSTANCE: powered support for steep formations of average thickness consists of similar linear sections each of which has roof timber, hydraulic prop of stay brace, shoe, hardware compartment capsule, cave-in and bottom-hole enclosure, as well movement and correction mechanism. Stabilisation and correction mechanism is located on both sides of the hardware compartment capsule and consists of supporting screens and air pads inflating against side surfaces of capsules of neighbouring compartments.
EFFECT: improving serviceability of powered support and its stability and movement method.
2 cl, 3 dwg
SUBSTANCE: mining module includes section of powered support that consists of foundation, hydraulic support and a canopy. The canopy is attached to mining device on the goaf side of which there are swaying hydraulic cylinders. Note that mining device is done in the form of manipulator with strikers assembly with shearing elements from bottom-hole side that is equipped by hydraulic cylinder of strikers assembly rotation and hydraulic cylinder of manipulator rotation. Note that rotation hydraulic cylinder is pin-jointed by goaf side with platform capable of movement along the canopy of powered support section with the aid of feeding hydraulic cylinder.
EFFECT: mining module provides the possibility to perform coal drawing regarding coal mass cross stratification and allows coal getting by large shear that reduces the required cutting force, decreases specific energy consumption, increases productivity and excludes coal overmilling.
SUBSTANCE: section of powered support of supporting-enclosing type includes bottom, four-link chain, hydraulic props and enclosing element and supporting element, which are connected to each other. Besides, support section includes mechanical spacers located between stock of hydraulic props and supporting element, active cap with supporting element and angular telescope-type adjusting jack. Active cap has the possibility of being moved upwards by means of hydraulic cartridges, and angular adjusting jack serves for lifting of supporting element with active cap, thus providing transformation of supporting element with a cap and enclosing element to a single enclosing element.
EFFECT: higher labour efficiency due to reducing the time costs on the support installation during change-over to development of thicker or thinner formation.
FIELD: machine building.
SUBSTANCE: device for connection of covering with enclosure of powered support section includes coaxially located eye-lugs of retractable sides of the covering and enclosure, which are hinged with pins, the diameters of holes of which are larger than the pin diameter. Two coaxial cylindrical bushings with projections and cavities are installed in eye-lugs of retractable sides of covering and enclosure. At that, bushings are provided with possibility of being attached to each other by turning the external bushing, the projections of which are engaged with projections of internal bushing, thus preventing their axial displacement relative to each other, with further fixation of that position by means of fixing pin. Besides, pin is installed into mutually coaxial holes made in bushings and radially offset relative to their rotation axis.
EFFECT: reduction of metal consumption, as well as labour intensity with regard to assembly of connection of covering and enclosure in case of repair or erection, and removal of the support section.
4 cl, 4 dwg
SUBSTANCE: device for making recesses in fully-mechanised working face involves an actuating element, drilling rod rotation and supply mechanisms, load-carrying frame, drilling cartridge, screw stems and fastening mechanism. The latter is made in the form of suspension mechanism consisting of hydraulic jacks, the cylinders of which are hinged on the covering of the support section, and their stocks are attached to the load-carrying frame, and a detachable support.
EFFECT: improving the operating efficiency.
SUBSTANCE: invention is related to assembly of a shield support for underground mining, comprising a shield canopy and at least one floor beam as elements of the support surface, which are hingedly connected and may be pressed to the rock with the help of at least one hydraulic cylinder, which is maintained in support troughs on the shield canopy and the floor beam. At the same time each element of the support surface comprises a welded structure from components welded to each other. At least one element of the support surface comprises at least one hollow metal boxy profile filled with a solid substance as a component of the support structure. The invention also relates to a configuration of the floor beam and/or the shield canopy with at least one hollow metal boxy profile filled with a solid substance, preferably, concrete.
EFFECT: provision of high load maintenance without increasing total weight.
44 cl, 8 dwg
SUBSTANCE: powered roof comprises basic and linear sections. Note here that manipulator with grippers is mounted at basic section base to displace said linear section after face advance and for installation and dismantling works. Besides, basic section goaf guard is composed of sliding pneumatic blade with the set of air cushions makes a thrust element that cuts off rock structures hung above the stull. Linear section incorporates air post as a thrust composed by a polymer film sleeve reinforced by polymer rings to rest on hardware compartment capsule. Linear section beam is coated with resilient polymer ply to facilitate the contact between lining and roof block structures.
EFFECT: higher stability, ease of installation and dismantling.
SUBSTANCE: proposed complex is equipped with powered roof support section displacement jack attachment drives, rood support being displaced to pans of face conveyor with hydraulic cylinders of adjustment at different inclinations of cleanup face line. It allows a permanent location of face conveyor relative to the point of rock transfer to face loading station. It incorporates spacing-sliding transfer mechanism, guard board elongated part and support section shelter turn drive. Note here that support sections with pans are articulated to make triple units with single control unit. Said powered roof support section displacement jack attachment drive is composed of articulated rabbet joint including perforated grooved guide secured to the pan and moving bracket with fixed rabbet-thrust interconnected by adjustment cylinder for mutual displacement. Overlap shelter is equipped on face chest with shutter extension drive to vary cleanup face line position. It is composed of a set of plate articulated by extending rabbet frame to be extended by hydraulic cylinders articulated with rabbet frame and shelter. Rabbets are articulated with said plates.
EFFECT: higher efficiency.
10 cl, 7 dwg
SUBSTANCE: present invention relates to a collapsible prop of mine timber. The proposed collapsible prop comprises a first metal pipe extending from the base of mine opening, having a first part with a smooth first outer diameter and a second part with a second outer diameter. And the second part comprises at least one metal roller welded to the first part, and a metal ring welded to the first part. The height of the second part from the first is greater than inner diameter of the second pipe by at least 0.15 inches (4 mm). The yield limit of the first pipe is greater than the yield limit of the second pipe. The second metal pipe is located near the first part and extends to the roof of the mine opening, and when the second pipe receives a load from the roof of mine opening, the second part deforms the second pipe and expands the second pipe, creating resistance to the load from the roof of mine opening.
EFFECT: method of creation of timber of the roof of mine opening and construction method of collapsible mine prop is proposed.
18 cl, 15 dwg