Assembly of shield support for underground mining and element of support surface

FIELD: mining.

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

 

The present invention relates to an Assembly shield roof support for underground mining, containing panel overlap and at least one floor beam as elements of the supporting surface are pivotally connected by a connecting mechanism and which can be pressed against the surrounding rock to maintain the camera in the open position using at least one hydraulic cylinder, which is supported in the bearing pans mounted on ceiling and floor beam, with each element supporting surface consists of a welded structure made of welded with each other components. The present invention also relates to the element support surface such as a floor beam or panel overlay, to build a shield roof support for underground mining, containing welded construction of welded with each other component and at least one reference pan to maintain the hydraulic cylinder, which can be affixed to the other element support surface.

Assembly panel supports that can be adjusted in height by means of hydraulic cylinders, used for decades in underground mining and, as a rule, contain two floor beams, the connecting mechanism goaf shield and panel overlay, consisting of one or sets the parts, which are connected with the possibility of pivoting with goaf shield. Panel overlap is pressed against the so-called overhanging wall or the roof, i.e. lying on top of the rock underground of the working surface, by extension, usually two, and sometimes four, hydraulic cylinders so that the camera, usually called excavation camera, could remain free within the underground formation for the location of excavation machines. Many height-adjustable Assembly panel supports form a moving support which can be moved forward or push forward extraction machine using the discharge of the hydraulic cylinder, and move the individual panel assemblies supports using essentially horizontally oriented promoting cylinders supported on the mining machine.

To achieve cost-effective underground mining typically requires Assembly panel supports had a large bearing surface, which must have the ability to absorb, respectively, large load, and the aim of the invention is the creation of an Assembly panel lining panel floors and/or floor beams as part of a support surface for the Assembly of the shield supports that meet these requirements.

To achieve these and other purposes in accordance with the invention, POPs is an, at least one component welded to one or both elements of the support surface, containing a hollow metal box profile, filled with solid matter. The use of hollow metal box profiles, filled with solid matter, enables the distribution of forces acting on the elements of the supporting surface rock or hydraulic cylinders, the preferred image on the corresponding surface, which need to be maintained or which provides support, i.e. the roof or floor. Part design with solid filling ensures a uniform distribution of all the forces on the lower side or the upper side of the hollow metal box profiles. Filling the cavity of the hollow metal box profile solid provides, at the same time, withstanding substantial compressive effort and also bending effort without increasing the weight of the welded structure or item support surface, since the thickness of the wall large enough for a hollow metal box profile, much less than was necessary in the case of still using elements of the hollow profile to harden the floor beams or panel overlap. Reducing the weight of metal and metal content at the same time results in the significant reduction of the cost of production for Assembly shield roof support panel floors and/or floor beams, if this can be maintained large load.

In the most preferred embodiment of the hollow metal box profile has a rectangular cross-section, the cavity of which is filled with a solid substance. Hollow metal box profiles used in accordance with the invention, can consist of a material sold by the metre, and, consequently, it is possible to save on their purchase. In accordance with one possible embodiment of a solid substance may consist of loose sand, loose granules or other loose, not glued bulk material. When using granular material, it is necessary to provide the possibility of closing the hollow metal box profile with a closing lid to prevent the formation of voids inside the hollow metal box profiles, filled with granular solids, and preferably to provide the possibility of compensation and/or disappointe. One of the possibilities of compensation may be achieved, for example, by a closing cap that can be pulled to each other, or the like.

However, the most preferred is the embodiment in which a solid is composed of concrete, ore or bulk material, which is bonded by means of binders, such as sand, gravel, became the major fiber powder material, etc. the Biggest savings achieved using a suitable concrete as solid as the concrete is economical, because the concrete provides the ability to withstand high compressive loads and because at the same time, you can ensure complete filling of the cavity of the hollow box profile concrete, essentially without air inclusions.

In principle, it is possible, as is known, the welding of only connecting units for connecting mechanism, reference pans and/or transverse beams to reinforce elements of the support surface Assembly panel supports for welded construction or hollow metal box profiles. The use of hollow metal box profiles, populated with the related solid substance, such as, in particular, the concrete, provides an additional advantage in that the connecting units for connecting mechanism, preferably the reference trough-shaped socket for hydraulic cylinders and/or transverse beams may optionally be partially bonded positive and inline with the associated solid inside of the hollow metal box profile. To achieve this mounting is possible, in particular, to provide at least one speaker pogresno the anchor on the connecting nodes and/or support pans this anchor is placed through the hole in the wall profile of the hollow metal box profile in the cavity and is embedded firmly in a solid substance that prevents it from moving. To ensure the sustainability of the connecting nodes or reference pans can be attached to a hollow metal box profile integrated way, for example, attached by spot welding to the input composition for hardening or curing solids, in this case, when a permanent job corresponding weld points are not subjected to changing loads or anyway much less changing loads than in the case of simple welded joints. Most preferably the valve includes rods, reinforcing cables, reinforcing fibers or reinforcing mesh and put in a solid substance. It simultaneously provides the possibility of mounting anchors, such as anchor pans, directly to the valve. Anchors can, if desired, be screwed into the fittings or welded to the valve or may have at least one through-hole armature.

In accordance with one embodiment of the element support surface can be performed as a floor beam, in this case, most preferably a hollow metal box profile forms the bottom oporno the surface through its lower side, which rests on the floor during desktop use. The width of the hollow metal box profile, thus preferably corresponds to the width of the floor beams and at the same time determines the overall bearing surface of each of the floor beams. In accordance with the preferred embodiment, the hollow metal box profile may, therefore, be provided at its upper side through hole for passage of the anchor, made on the bottom side of the socket, which forms the reference pan. Additionally, the preferred component Assembly having a connecting hole for connecting mechanism, in particular for lemniscatic connections, welded to the outer sides of the hollow metal box profile. Thus, the finished floor beam consists of a hollow metal box profile, filled with concrete or other solid substance, and the profile runs essentially along the entire length of the floor beams, with metal outer walls of the hollow metal box profile is also used for welding Assembly of functional components. Alternatively or additionally, at least one of the elements of the supporting surface may consist of an integral element of many parts, the soda is containing many hollow metal box profiles with solid fill. Thus, for example, a floor beam may also be formed from a variety of hollow metal box profiles, filled with concrete, which are fastened to the formation of the floor beams. The fastening can be performed by welds or other means using other connecting elements.

The use of multiple hollow metal box profiles, most preferably in the creation or production of the item support surface forming panel ceiling panel because the ceiling is supported on the overhanging rock on the surface, which, for example, six times greater than the supporting surface of the floor beams of the same Assembly shield lining. Components filled with solid matter, may, preferably, to form longitudinal beam elements supporting surface subjected to bending stresses. In particular, it is preferable that in the Assembly of the shield lining below the plate overlap was welded, at least one, and preferably two, hollow metal box profile, filled with solid matter. Cross-section of the hollow metal box profiles, forming the Central flange may be selected essentially smaller than the hollow metal box profiles, which directly form Apolonia interceptions. At least one additional hollow metal box profile, which preferably also filled with solid matter, comprising a lateral flange, properly welded bottom plates overlap with both sides of the Central flange. However, the side flanges may also be composed of other reference profiles and similar items. In panel ceilings reference pans can be strengthened in the fill material for the hollow metal box profiles using the reference pans to accommodate heads hydraulic cylinder having a lateral anchors, siteplease through apertures in the side walls of the Central flange and/or through holes in the side walls of the side flange, with the cavity of the hollow metal box profiles that form these flanges, and is embedded in the solid.

In accordance with the preferred embodiment of the Central flange is only on the rear section of the length of the panel overlap or shield plate, in this case, the reference profile may be welded under the front length of the panel overlap. In particular, preferably the reference profile is part of the stem, which is placed, if it is valid, a plot of the base of the hollow metal box profile and, preferably, close the captivity in a solid. If necessary, metal beams or similar elements can be placed as a reinforcement on the part of the stem to achieve additional support for the reference profile on the hollow metal box profile, filled with solid matter. This design provides durable support panel ceilings, acting freely on large distances from the bend.

Additionally, the preferred hollow metal box elements located in front of and/or behind the reference pans. Reference profiles can be entered by using the part of the stem, in particular, hollow metal box items ahead from connecting pans, while also possibly fill these box sections with concrete. All reference profiles can contain one or more profiled flanges, for example, T-shaped profile, to achieve a high bending strength for panel overlap, while using less material. Preferred fasteners or support bracket having a connecting hole for connecting mechanism that can be attached to the rear ends of the rear hollow metal box elements. Fasteners, preferably, have a piece of the leg, which can BB is occurring in the cavity of the respective hollow metal box-shaped element and a positive foothold in it.

Additional advantages and improvements of the shield Assembly fasteners in accordance with the invention, containing panel ceiling and floor beam having at least one concrete-filled component, evident from the description of the preferred embodiments given below, which is schematically represented in the drawings, which shows the following:

figure 1 depicts a schematic side view with a partial cutaway Assembly shield roof support in accordance with the invention;

figure 2 depicts a perspective view of the lower part of the shield Assembly lining with figure 1 with two floor beams in accordance with the invention as elements of the supporting surface;

figure 3 depicts a perspective view of the lower structure 2 is a partially exploded view;

figure 4 depicts a perspective view of the supporting pan with anchor to floor beams;

figure 5 depicts a perspective view of the panel overlap Assembly shield lining with 1 on the form from the bottom side;

6 depicts an eccentric longitudinal section of the panel overlap with figure 5;

7 depicts a vertical section of the rear parcel panel overlap with figure 5;

Fig depicts a front view of the panel overlap with figure 5.

Figure 1 depicts a moving support or Assembly 10 shield roof support for underground mining. The Assembly 10 shield lining soda is separated panel overlay 1, goaf shield 3, which is connected with the possibility of pivoting with a shield overlap 1 connection 2 floors, lemniscate mechanism 4, containing many compounds 5, 6, and two floor beams 20, with the telescopically retractable hydraulic cylinder 7 is located between each floor beam 20 and a shield overlap 1. An underground chamber for the extraction of rocks, such as coal, ore or the like, can be maintained open by pressing panel overlay 1 and goaf shield 3 to the surrounding rock. The Assembly 10 shield lining installed in a known manner on the so-called bottom wall or floor, i.e. at the bottom of the underground chamber in which are being developed, using two floor beams 20, one of which is shown in figure 1. The hinged connection between the floor beams 20 and shield overlap 1 via a connecting mechanism 4 and the dam sheet 3 provides support for changing the height of the underground chamber, open at one and the same Assembly 10 shield lining. Panel overlay 1 has a front panel section 11A, the speaker is relatively far behind the top 21 of the floor beams 20, so that the mining machine for mining minerals could be located in a secure area under the shield overlap 1 and ahead of the floor beams 20. For underground use ispolzuetsyaprintsip Assembly 10 shield supports of identical construction, all of which can be used next to each other, and that through the promotion, carried out alternately, can be moved or to move independently along the progressive path of advance in the direction of excavation A. Because the entire load of the breed presses on the upper side panel overlap 1, the upper side of which is formed by a plate 12 floors, consisting of one member, the hydraulic cylinder 7 is supported at its two ends by means of corresponding reference pans 8 in the form of a slot in the floor beams 20 and reference pans 9 on the bottom side panel overlap 1. The width of the panel overlap 1 essentially determines the underlying surface, which can be kept open using the Assembly 10 shield lining, and in the case of presently known assemblies panel supports this width, as a rule, is between 1.50 and 2.50 meters with a total length of panel overlap approximately from 3.50 to 5.00 meters. As floor beams rest on the bottom (floor) of the breed, and panel overlay 1 is pressed to the top (the roof), as floor beams 20 and panel overlay 1 form elements support surface in the context of the present invention, and in the following text first will be explained the structure in accordance with the invention, the floor beams, with additional reference to figure 2-4, asetem structure panel overlap with additional reference to figure 5-8.

2 and 3 depict the bottom structure 40 of the Assembly 10 shield lining with 1 having two spaced floor beams 20 that are located one behind the other. The figures clearly shows that the two floor beams 20 have as a Central component of the hollow metal box profile 22, in this case with a rectangular cross-section and a dimensional ratio of the width to the height H approximately/N=5/3. The cavity 23 of both hollow metal box profiles 22 filled the entire length of the floor beams 20 that are associated with concrete 24 as solids, while the valve 25, consisting in this case of multiple rows of iron bars located eccentrically offset back, additionally located in a concrete block 24, which fills the cavity 23. By filling in the cavity 23 of the hollow metal box profiles 22 concrete 24 the resistance to compression of the hollow box section 22 increases significantly compared to the non-filled hollow box-shaped profile, even if the side walls of the hollow metal box profile 22 has a small wall thickness, and therefore, despite the small thickness of the walls of the hollow metal box profile 22, the two floor beams 20 can absorb all the bending stresses that occur during operation, for example, the development is s or ridges on the floor or lying around the fragments of rock.

Hollow metal box profile 22 of the two floor beams 22 at the same time forms with their outer sides of the base and part weldment 30, each of which has an outer side wall 31 and the inner side wall 32, which are welded to the transverse sides of the hollow metal box profile 22 and which contain the supporting holes 33 and 34 in order to provide the possibility of setting the lower ends of compounds 5, 6 (figure 1) lemniscate mechanism 4 (Fig 1) on the support walls 31, 32 weldment 30. On the exploded view, figure 3, one can clearly see that before welding to a hollow metal box profile 22 of the floor beams 20 of the inner and outer support walls 31, 32 are connected by means of a connecting plate 35 to form the Assembly component 36 to one of the floor beams 20 and for forming Assembly 37 component mirror-reverse designs for other outdoor beams 20. Assemblies 36, 37 components can, thus, be made in advance before they are welded to the hollow metal box profiles 22 of the floor beams 20. To obtain the most preferred of the welded connection between the transverse sides of the hollow metal box profiles 22 and the side walls 31, 32 have longitudinal grooves 39, the belt edge is which can be completed welds. Two assemblies 36, 37 components can, thus, in the prescribed condition to be connected to each other by means of additional intermediate plates 41, which can also be attached to the adjusting cylinder or pushing the cylinder, in order if necessary to push forward extraction machine or to promote Assembly shield lining. In the shown illustrative embodiment, two floor beams 20 is additionally connected to each other through the bridge crossbar 42 located on the front side of the two assemblies 36, 37 components, which are welded to the upper side of the hollow metal box profiles 22.

Each floor beam 22 pivotally attached to the connecting trough 8 in the form of a slot to maintain the lower end of the hydraulic cylinder 7 (Fig 1) so that, depending on the distance between the floor beam and a shield overlap, the hydraulic cylinder 7 can change its angular position. Each connecting pan 8 has a through recess 8A at its upper side for receiving the lower end of the hydraulic cylinder. Connecting the pan 8 in the form of a slot are presented in detail in figure 4 and is equipped on its lower side 45 durable, cast him as one of the anchor 46, having an anchor plate 47 with a diameter greater than the diameter soedinitelnoj the ledge 48 between the anchor plate 47 and the lower side 45 of the connecting trough 8. Different diameters of the anchor plate 47 and the connecting protrusion 48 cause the anchor 46 having an undercut, which is in the established state can be filled with the filling material for the hollow metal box profiles 22, in this case concrete, for attaching the connecting trough 8, preferably in addition to the welded joint to the floor beams 20.

For insertion of the anchor 46 in the filling material 24, which fills the cavity 23 in the hollow metal box profiles 22, the upper side of these profiles are provided with, as shown in figure 3, corresponding, in this case, round, through hole 26, through which, as schematically shown, in particular, in figure 1, is placed anchor 46 to entry of concrete into the cavity 23. To improve the accuracy of the location of the connecting trough 8 is preferably secured by spot welding to the input of concrete (fill material) and/or attached to the valve 25 located in the cavity 23 of the hollow metal box profiles 22.

In the shown illustrative embodiments, each floor beam 20 is composed of one of the hollow metal box profile 22, which are welded, and, if necessary, also screwed all the extra parts. Alternatively, each floor beam may also consist of two or bol is e metal box section, filled with concrete and/or each floor beam consists of a multi-chamber hollow box section, only a few cavities filled with concrete, in order to achieve the optimum ratio between the total weight and the bending strength of the floor beams.

Figure 5-8 shows a preferred illustrative option panel overlap 10, which, as loaded element to absorb the bending stresses exerted on panel overlay 1, also contains at least one hollow metal box profile 13 with the cavity 14 is filled with concrete and, if necessary, reinforcement. In the illustrative embodiment, which is shown for panel overlap 1, two separate hollow metal box profile 13 are located directly on the underside of the plate 12 overlaps, symmetrically relative to the Central longitudinal axis, and filled with concrete 15 in the cavity 14, as shown in particular a fragmentary view of figure 7. Two hollow metal box profile 13 arranged symmetrically about the Central longitudinal axis of the panel overlap and in the center, form the Central flange 16 for panel overlap 1, which here extends, however, only on the rear segment 11B length panel overlay 1 or plate 12 overlap. Two additionally the x hollow metal box profile 17 is located with a corresponding offset to the outer face of panel overlap at a distance of two concrete-filled hollow metal box profiles 13, which, depending on the load, which must be compensated, can be filled with concrete or other solid material or in the form of an empty hollow profiles can be simply welded under the plate 12 overlap. Exterior hollow metal box profiles 17 are also only on the back portion of the length 11 of the plate 12 about the centre panel overlay 1, and two exterior hollow metal box profile 17 form side flanges to absorb bending stresses. Upper bearing trough 9, also in the form of a socket that is equipped as a whole on both sides of the depth of a trough holes 9A 9B to accommodate mounting bolts, in each case located between one of the hollow metal box profiles 13, forming the Central flange, and a hollow metal box profile 17, which forms a lateral flange. Reference trough 9 is also preferably composed of cast parts, which are exposed to the side scoring the anchors 56, siteplease via through holes (not shown separately) in the side walls of the hollow box section 13 and 17 and the cavity 14 and 17A for fastening it in the filling material (concrete), as shown in example 7 for hollow metal box profiles 13 with a concrete block 15.

To achieve naibors the second bending stiffness for panel overlap 1 over the entire length, even if the hollow metal box profiles 13, filled with concrete, as the Central flange, and/or 17, as the side flanges extend only to the area 11B in half the length of the plate 12 overlaps supporting profiles 60 are placed by using the part of the stem 61 in both the front end of the hollow metal box profiles 13. Each supporting profile 60 has, since part of the stem 61, protruding forward reference beam 62 with a T-shaped cross-section to accept the loads acting on the front section 11A panel overlay 1 or plate 12 overlaps, as well as for the direction of these loads on in-filled hollow metal box profiles 13. In this part of the leg 61 along the entire height of the hollow metal box profiles 13 and positively secured in the cavity 14, preferably by means of the base (not shown), profiled beam 62 of the support profile 60 has a smaller height for the location of the intermediate plate 18 under the plate 12 overlap in the anterior segment 11A panel ceilings 1. The intermediate plate 18 gives a greater degree of rigidity in bending of the front section 11A by means of a set of longitudinal and transverse beams 19. To maintain the front section 11A panel overlap 1 in the lateral direction, two additional supports what's profile 67 are located on both sides of the Central reference profiles 60 and here consist of cast parts, having two beams of the T-shaped profile 66 that are located one behind the other. As also can be seen in particular in figure 6, the two side support profile 67 also have part of the legs 64, which, speaking back, equipped with a section of the base 65, which, preferably, is the center of the panel ceilings 1. Two hollow box-like element 70 also have a cavity 71, which is preferably filled with concrete or ore to increase rigidity of the bending in the case of thin-walled hollow metal box-shaped elements 70 and achievements mounting the supporting profiles 64 inside the hollow metal box-shaped elements 70. Fill hollow metal box-shaped elements 70 also allows you to secure the connecting trough 9, if, as shown in Fig.6, he engages with the cavity 71 through paws 9c.

Between the support pans 9 and the rear edge of the panel slabs 1 are additional hollow metal box-like elements 76, which are made in the same manner as a hollow box-like elements 70. The cavity 77 of the rear hollow metal box-like elements 76 may also be filled with concrete. Like the front supporting profiles 67, the connecting bracket 90 with connection holes 91 may be attached to the rear end panel overlay 1 for accession landslide sheet 3 (Fig 1) to soedinitelny holes with fasteners 2 (figure 1) overlap. The connecting bracket 90, which preferably also consist of cast parts, equipped part of the legs 92, containing part of the base 93, the protruding back in the form of smaller rectangular cross section and whose outer diameter is positively introduced into the cavity 77 of the hollow metal box-like elements 76. If the cavity 77 is also filled with concrete, you can mount as a solid support brackets 90 and reference pans 9 to the hollow metal box-like elements 76 integrated way. However, hollow metal box-shaped elements 70, 76 may, together with the plate 12 overlap, the supporting profiles 60, 67 and hollow metal box profiles 13, 17, to form a welded construction, reinforced only partially or not reinforced, filled with concrete or any other related solid.

The above description assumes a number of modifications to the specialist in the art, which are protected within the attached claims. As described above, in the case of floor beams you can also connect multiple hollow metal box profiles with each other. In the case of panel overlap the Central flange may consist of a single metal box profile with a concrete filling. The two supporting pan can only be Pref is Reny to the hollow metal box profiles with concrete filling, and if required to other components. The ratio of the width/height of a single hollow metal box profiles may also differ from those shown in the illustrative embodiments. In the case of panel overlap hollow metal box profiles can optionally be equipped with a valve, consisting of fibers, meshes, and the like, it is possible, in particular, to valves consisted also of iron rods arranged offset relative to the neutral fiber or the plane of the hollow metal box profiles. In the case of reinforced hollow metal box profiles, the concrete can be introduced layers in the form of different materials, in order to plot the valve to achieve filling with concrete top brand which can absorb high tensile loads than concrete, the worst mark in the other layers. The reference profiles may also have other cross-sectional profile, such as a box-shaped profile, custom profile, h-profile, U-profile, and the like.

1. Assembly shield roof support for underground mining, containing panel overlay (1)at least one floor beam (20) as elements of the supporting surface are pivotally connected by a connecting mechanism(2, 3, 4, 5, 6) and able to cuddle up to breed p. and assistance at least one hydraulic cylinder (7)is supported in the bearing pans (8, 9) mounted on ceiling (1) and floor beam (20), with each element supporting surface consists of a welded structure made of welded together components, wherein at least one of the elements supporting surface contains as a component of welded structure (30), at least one hollow metal box profile (13; 22)filled with a solid substance.

2. Assembly shield roof support according to claim 1, characterized in that the hollow metal box profile (13; 22) has a rectangular cross section with a cavity (14; 23)filled with solid matter.

3. Assembly shield roof support according to claim 1, characterized in that the solid consists of loose sand, loose granules or other loose, unbound base material.

4. Assembly shield roof support according to claim 1, characterized in that the solid consists of concrete, ore or bulk material associated with the aid of binders.

5. Assembly shield roof support according to claim 4, characterized in that the connecting units for connecting mechanism, the connecting socket as the reference pan (8; 9) or cross bars partially embedded in the associated solid material inside the hollow metal box profile (13; 22).

6. Assembly the shield roof support according to claim 5, characterized in that at least one speaker, scoring anchor (46; 56) is formed on the connecting nodes or connecting sockets placed through the hole (26) in the wall of the profile of the hollow metal box profile (22) into the cavity (23) and put in a solid fixed relative to the movement.

7. Assembly shield roof support according to claim 4, characterized in that the armature (25)containing reinforcing bars, reinforcing cables, reinforcing fibers or reinforcing mesh, is located in the solid preferably eccentric.

8. Assembly shield roof support according to claim 6 or 7, characterized in that the anchor directly attached to the valve.

9. Assembly shield roof support of claim 8, wherein the anchor and fittings, screwed or welded to each other, or the anchor has at least one through-hole armature.

10. Assembly shield roof support according to claim 1, characterized in that the element reference surface as a floor beam (20), and hollow metal box profile (22) forms a bottom support surface through its lower side.

11. Assembly shield roof support of claim 10, wherein the hollow metal box profile (22) is provided on its upper side through hole (26) for the passage of the anchor (46), is performed on the bottom side of the socket forming porny the pan (8).

12. Assembly shield roof support of claim 10 or 11, characterized in that the Assembly (36, 36) of components having connecting holes (33, 34) under the connecting mechanism, in particular under lemniscate connections, welded to the outer sides of the hollow metal box profile (22).

13. Assembly shield roof support according to claim 1, characterized in that at least one of the elements supporting surface contains welded construction contains many hollow metal profiles (13)filled with solid matter.

14. Assembly shield roof support according to claim 1, characterized in that the components are filled with solid, welded construction form the longitudinal beams, which, essentially, are subjected to bending stresses.

15. Assembly shield roof support according to item 13 or 14, characterized in that the element support surface forming panel overlay (1) Assembly shield lining.

16. Assembly shield roof support according to item 15, wherein the at least one hollow metal box profile (13)filled with solid matter, comprising a Central flange that is welded below the plate (12) overlap.

17. Assembly shield roof support according to item 16, characterized in that the corresponding additional hollow metal box profile (17), preferably filled with a solid substance comprising a lateral flange, welded p is d plate (12) overlap with both sides of the Central flange.

18. Assembly shield roof support according to item 16, characterized in that the connecting trough (9) to accommodate the heads of the hydraulic cylinders have a lateral anchors (56), siteplease through apertures in the side walls of the Central flange and/or through holes in the side walls of the side flange in their cavities (14; 17A).

19. Assembly shield roof support according to item 16, characterized in that the Central flange (13) is only on the rear segment (11B) the length of the panel overlap (1), with the reference profile (60) welded under the front segment (11A) of the plate (12) overlap and is part of the leg (61), entered into a hollow metal box profile (17) and preferably attached to a solid substance.

20. Assembly panel lining on p or 19, characterized in that the hollow metal box-shaped elements (70, 76) are located in front of and behind the connecting trough (9), while supporting profiles (67) introduced by part of the stem (64) in the front ends of the front hollow metal box-shaped elements (70).

21. Assembly shield roof support according to claim 19, characterized in that the supporting profiles (60, 67) contain one or more profiled flanges (62, 66) with a T-shaped profile.

22. Assembly shield roof support according to claim 20, characterized in that the connection piece (90)having a connecting hole (92) for connecting mechanism attached to the rear end is m hollow metal box-shaped elements (76), while fittings (90) preferably have a piece of the leg (92), entered into a hollow metal box-shaped element (76).

23. The item support surface for Assembly shield roof support for underground mining, containing welded construction of welded with each other component and at least one reference pan (8; 9) to maintain the hydraulic cylinder, able to cross over to another element supporting surface, characterized in that at least one component of welded structure consists of a hollow metal box profile (13; 22)filled with a solid substance.

24. The item support surface on item 23, wherein the hollow metal box profile (13; 22) has a rectangular cross section with a cavity (14; 23)filled with solid matter.

25. The item support surface on item 23, wherein the solid material consists of loose sand, loose granules or other loose, unbound base material.

26. The item support surface on item 23, characterized in that the solid consists of concrete, ore or bulk material associated with the aid of binders.

27. The item support surface on p, characterized in that the connecting units for connecting mechanism, the connecting socket as oporn the x pan (8; 9) or cross bars partially embedded in the associated solid material inside the hollow metal box profile (13; 22).

28. The item support surface on item 27, wherein the at least one speaker, scoring anchor (46; 56) is formed on the connecting nodes or connecting sockets placed through the hole (26) in the wall of the profile of the hollow metal box profile (22) into the cavity (23) and put in a solid fixed relative to the movement.

29. The item support surface on p, characterized in that the armature (25)containing reinforcing bars, reinforcing cables, reinforcing fibers or reinforcing mesh, is located in the solid preferably eccentric.

30. The item support surface on p or 29, characterized in that the anchor directly attached to the valve.

31. The item support surface on item 30, wherein the anchor and fittings, screwed or welded to each other, or the anchor has at least one through-hole armature.

32. The item support surface on item 23, wherein the item support surface is made as a floor beam (20), and hollow metal box profile (22) forms a bottom support surface through its lower side.

33. The item support surface on p different is the present, that hollow metal box profile (22) is provided on its upper side through hole (26) for the passage of the anchor (46), is performed on the bottom side of the socket forming the reference pan (8).

34. The item support surface on p or 33, characterized in that the Assembly (36, 36) of components having connecting holes (33, 34) under the connecting mechanism, in particular under lemniscate connections, welded to the outer sides of the hollow metal box profile (22).

35. The item support surface on item 23, wherein at least one of the elements supporting surface contains welded construction contains many hollow metal profiles (13)filled with solid matter.

36. The item support surface on item 23, characterized in that the components are filled with solid, welded construction form the longitudinal beams, which, essentially, are subjected to bending stresses.

37. The item support surface on p or 36, characterized in that the element support surface forming panel overlay (1) Assembly shield lining.

38. The item support surface on clause 37, wherein the at least one hollow metal box profile (13)filled with solid matter, comprising a Central flange welded is about below the plate (12) overlap.

39. The item support surface on 38, characterized in that the corresponding additional hollow metal box profile (17), preferably filled with a solid substance comprising a lateral flange, welded under the plate (12) overlap with both sides of the Central flange.

40. The item support surface on 38, characterized in that the connecting trough (9) to accommodate the heads of the hydraulic cylinders have a lateral anchors (56), siteplease through apertures in the side walls of the Central flange and/or through holes in the side walls of the side flange in their cavities (14; 17).

41. The item support surface on 38, characterized in that the Central flange (13) is only on the rear segment (11B) the length of the panel overlap (1), with the reference profile (60) welded under the front segment (11A) of the plate (12) overlap and is part of the leg (61), entered into a hollow metal box profile (17) and preferably attached to a solid substance.

42. The item support surface on p or 41, characterized in that the hollow metal box-shaped elements (70, 76) are located in front of and behind the connecting trough (9), while supporting profiles (67) introduced by part of the stem (64) in the front ends of the front hollow metal box-shaped elements (70).

43. The element of the a priori surface according to paragraph 41, characterized in that the supporting profiles (60, 67) contain one or more profiled flanges (62, 66) with a T-shaped profile.

44. The item support surface by 42, characterized in that the connection piece (90)having a connecting hole (92) for connecting mechanism attached to the rear ends of the hollow metal box-shaped elements (76), with fittings (90) preferably have a piece of the leg (92), entered into a hollow metal box-shaped element (76).



 

Same patents:

FIELD: mining.

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.

1 dwg

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

FIELD: mining.

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.

4 dwg

Mining module // 2459076

FIELD: mining.

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.

3 dwg

FIELD: mining.

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

FIELD: mining.

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.

5 dwg

The invention relates to mining, and in particular to means mehanizirovannogo mounting faces when developing a powerful sloping coal seams

The invention relates to mining and is aimed at improving the safety and efficiency of works by softening the underlay or the interlayer thickness and coal production, as well as increasing the reliability of a design lining

Shield // 2235209
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 invention relates to mining and can be used in the extraction of coal and other minerals from steeply inclined seams

FIELD: mining.

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.

5 dwg

FIELD: mining.

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

Mining module // 2459076

FIELD: mining.

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.

3 dwg

FIELD: mining.

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.

4 dwg

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

FIELD: mining.

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.

1 dwg

FIELD: mining.

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

FIELD: mining.

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.

3 dwg

FIELD: mining.

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

FIELD: mining.

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

Up!