The invention relates to mining, namely, mechanized mount Stopes in underground mining. The objective of the invention is to increase reliability, reduce labor costs and loss of time in the conduct of Assembly and dismantling. The shield includes a base, a transfer mechanism, the overlap with the hinge attached consoles, the hydraulic jacks, pivotally connected with the rocker arm, through which the hinge pins are installed in the bores overlap with the opportunity to interact with consoles and secured by the axes. The ceiling is made with grooves. Axis provided with eccentrics placed with the axis rotation and fixation of the eccentric between the walls of the groove. Each rocker is made with slots to accommodate the ends of the axes. Pins are placed in the bores overlap with the possibility of their withdrawal from the past when offset by the amount of their landing in the nest of the rocker arm. 4 Il. The invention relates to mining, namely, mechanized mount Stopes in underground mining.Famous shield that includes a base, milling the data with rockers, with trunnions pivotally mounted in the bores overlap with the opportunity to interact with consoles and fixed by means of stoppers, bolts and washers (mechanized Lining CD, CD, CD. The user guide. CD.00.00.000 ER, Donetsk, 1993, 168s.).The presence of threads, with which the mounting of the rocker arm to the ceiling, complicates the Assembly-disassembly of the lining elements and reduces the reliability and durability of the fastening elements of the nodes section, especially when operating in the mine conditions, the characteristic features of which are high humidity and dust, corrosive environment.Closest to the invention by the technical nature (prototype) is a shield, comprising a base, a transfer mechanism, the overlap with the hinge attached consoles, the hydraulic jacks, pivotally connected with the rocker arm, through which the hinge pins are installed in the bores overlap with the opportunity to interact with consoles and embodied through the axes (see the patent of Ukraine 11914. Priority from 02.08.83, Bulletin 4, publ. 25.12.96, see also and.with. The USSR 1195727 A1, class E 21 D 23/04, publ. 10.06.95). These characteristics coincide with casestudy beam in the ceiling. The length of each axis should be less than the width of the beam, which hinders erection and dismantling in Stopes, because of the overlap of adjacent sections prevent installing and removing the axles. To extract the axis you want to lower the ceiling below the adjacent, with additional work, and in some cases impossible.It should be noted that the rocker is heavily loaded node and it has a slot to accommodate the head of the rod rack. The presence in the beam pass-through holes for the axis leads to a decrease in strength of this node. At the same time, experienced significant axis Flexural load (when lowering the overlapping sections do not allow it to reduce its diameter and, accordingly, the diameter of the through hole in the rocker.In addition, the design of the prototype is not provided by the non-rotation of the axes of the mounting arm from longitudinal displacement. The appearance of the longitudinal force in the axis, due to the lateral displacement of the overlapping section relative to the base and the resulting transverse inclination of the legs, can lead to the shift axis and the failure of the swivel the hydraulic jacks with rocker and overlapping.The basis of the invention of pooramise and swivel between them enhances the reliability of this connection and the rocker arm, as well as reduced labor costs and loss of time in the conduct of Assembly and dismantling.The problem is solved due to the fact that the shield includes a base, a transfer mechanism, the overlap with the hinge attached consoles, the hydraulic jacks, pivotally connected with the rocker. The rocker arm by means of trunnions pivotally mounted in the bores overlap with the opportunity to interact with consoles and secured by the axes. According to the invention the overlap is made with grooves axis provided with eccentrics placed with the axis rotation and fixation of the eccentric between the walls of the groove. Each rocker is made with slots to accommodate the ends of the axles, and the axle it is placed in the bores overlap with the possibility of their withdrawal from the past when offset by the amount of their landing in the nest of the rocker arm.Distinctive features of the prototype essential features of the invention are grooves overlap; eccentrics placed on axis with the axis rotation and fixation of the eccentric between the walls of the groove; the execution of the slots in the arm for placing the ends of the axes, and the possibility of withdrawal of the pins from the bores overlap with the offset on the magnitude and is Ino to reduce the amount of necessary offset during installation-dismantling of the connection, that provides, in particular, the possibility of carrying out these activities on a separate partition regardless of the position of its overlapping and neighboring sections. For fastening the rocker arms do not require the presence of through holes therein, and two nests of relatively shallow depth, in which are placed the ends of the axes, which increases the strength and reliability of the rocker and swivel overlap. Finally, the presence of the groove, the walls of which are poles placed on the axis of the eccentric, ensures the reliability of the connection under the action of axes in substantial longitudinal force.In Fig. 1 shows an example of execution of sections of powered roof supports (side view), and Fig.2 is a detail view a of Fig.1 in the area of the swivel overlap and the rocker arm of Fig.3 - section b-B of Fig.2; Fig.4 is a detail view In Fig.3.Shield (see Fig.1, 2) consists of the base 1, the transfer mechanism 2, an overlap of 3 with the hinge attached consoles with 4 legs 5, pivotally connected with the rocker arm 6 mounted on the ceiling 3. The overlap provided with grooves 7 (see Fig.3, 4), and each arm 6 is fixed on the ceiling 3 by means of two axes 8 with the eccentrics 9 placed between the walls of the slots 7. The ends lnany holes 11 and 12, combined axis and connected by elastic retainer 13. The trunnions 14 of the rocker arm is placed in the bores overlap 15. In the bore 16 of each rocker arm 6 (see Fig.1, 2) set the ends of the rods 17, the other ends of which are in contact with consoles 4.Shield at its disposal works as follows.Thrust force of the jacks 5 creates pressure overlap 3 on the roof of the reservoir and causes rotation of the rocker arm 6 relative to the hinge created by the pins 14 in the bores 15 overlap (in this case the axis 8 is unloaded from the perception of effort props 5). Rocker, turning, pushing the bores 16 of the rod 17, which, moving in the direction of the face, interact with consoles 4, resulting in the console turn up in the joints overlap and pressed against the roof.When the folding section of the force rod hydraulic jacks 5 through the swivel is transmitted to the rocker arm 6, which causes it to rotate relative to the hinge created by the axes 8, placed in the slots 10 of the rocker arm 6. When this force folding legs 5 through axis 8 is transmitted to the overlap of 3, leading to its isolation from the roof and lowering. The bore 16 of the rocker arm 6 is rotated in the opposite direction from the bottom side, which removes raspornye and away from the roof.In the operating condition of the shields possible longitudinal displacement of the axes 8, due to the action of the longitudinal force in the axis by a lateral displacement of the slab 3 and the legs 5, limited by the stop Cam disc 9 in the walls of the slots 7.When removing such nodes section, as the legs 5, the arm 6 or rod 17, it is necessary to remove the clamps 13 and to rotate the eccentrics 9 in the lower position. Subsequent displacement of the axis 8 by the amount of their landing in the nest 10 rocker allows the removal of the beam from the bores 15 overlap for dismantling the specified nodes. The small size of the required offset for easy dismantling without additional operations with overlapping sections.
ClaimsShield comprising a base, a transfer mechanism, the overlap with the hinge attached consoles, the hydraulic jacks, pivotally connected with the rocker arm, through which the hinge pins are installed in the bores overlap with the opportunity to interact with consoles and secured by means of axes, characterized in that the overlap is made with grooves axis provided with eccentrics placed can be rotated axis and pin it posted in the bores overlap with the possibility of their withdrawal from the past when offset by the amount of their landing in the nest of the rocker arm.
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