Conveyor trough section

FIELD: mining industry; face and drift conveyors.

SUBSTANCE: proposed section contains lower run 2 and upper run 3 for driving chain scrapers, welded frame structure 1 with interconnected sides, transport bottom 8 and connecting appliances 60. according to invention, sides consists of mirror turned-over solid rolled sections 10 of asymmetric form constant along length of section. Sections 10 are turned outwards and they include lower and upper shelves and raised intermediate shelf connecting lower and upper shelves and provided with bend on which at least one step is made from inner side to support and weld-to at least one intermediate sheet 40A reinforcing rolled sections 10. Transport bottom 8 is welded to two rolled side sections 5 to form replaceable tray 4.

EFFECT: simplified design owing to reduction of number of components, and facilitated manufacture owing to automatic mounting and welding operations.

26 cl, 7 dwg

 

The invention relates to the section of trench for underground face and gate conveyors, containing the lower and upper branches for conducting the scrapers of the scraper chain, welded frame construction, having solidly interconnected sides, a transport plate and the connecting means.

In underground mining facilities, such as underground mines are chain conveyors large total length, composed of individual, interconnected at the ends firmly stretching sections. The connection of adjacent and contiguous to each of the sections is, for example, by means of a strap, rope, cord pockets and adjustable tap wrenches, which provide a certain angular mobility in horizontal and vertical directions of the adjacent sections, so that the chain scraper conveyor can compensate for the uneven ground lying flank and can be moved with the advancing front of the sewage treatment works. Because the partition grooves are used for downhole conveyors, they are from bookmarks and/or from the chest stope equipped with basic details for conducting, for example, a mine plow or Shearer drum Executive body and contain mounting console for simply supported on the face shield of the walking beam. By improving the performance of extraction of dobigny the machines and increase the lengths of the faces, on average, up to 450 m increases also created conveyors, performance, and modern face and gate conveyors must have a capacity of at least 2000 t/h (tons/h), and high performance transporters is also 5000 t/h With increasing bandwidth inevitably increases the wear of individual sections, and on the market there is a need to transport runners with high capacity and long service life at the lowest possible production costs and low overall weight of individual sections.

Modern underground face and gate conveyors can be divided into unit sections runners into three groups. The first group includes conveyors with a fully closed sections of gutters. The advantage of this cast structures is their high reproducibility, high nagruzhaemoi due to the homogeneous unit and low exposure installation errors. The disadvantage is the high cost of materials, low suitability for calculation of separate zones for higher loads or longer service life, and the lack of replacement of wearing parts.

The second group consists of so-called hybrid section that, on the one hand, consist of cast parts, and on the other hand, skatanic details. Similar to the hybrid section of the gutter is disclosed, for example, in EP 525926 B1. Hybrid sections cost a small number of welds, as, for example, the entire sidewall including a side profile for doing scrapers on the branches and strap, rope, cord pocket as part of the connecting means can be made in one piece, whereas the transport plate weld to the cast to the side as one of the exposed core loads of details. Next for hybrid sections known welding subsequently connecting means and other basic details for advancing conveyor or mining machine (DE 3905324 A1).

The third group of sections of gutters, of which the generic design proceeds, the invention consists entirely or almost entirely of welded construction, with at least more heavily stressed parts, such as transport the bottom and/or side profiles consist of rolled profiles and are due significantly longer service life and less susceptible to wear and tear (DE 2918007 A1, DE-PS 974612, DE 3933884 C2 or DE 4006182 C2). An important advantage of welded sections is that by choosing different materials and manufacturing methods relevant parts of the welded structure can be achieved long service life sections of gutters. Errors within sobljudeny the dimensions of the individual parts welded structure can be compensated for during Assembly, for example, when the execution of welded joints. Major drawbacks are still considered high, dependent on staff costs of production because of the many perform installation operations and welded joints, the risk of defects and cracking in the welded joints and the high costs required for rolling of specialized tools parts. Section of the third group were equally entrenched in the market, because due to the replacement of worn parts at relatively the best prices can be restored to full functional capacity of the conveyor. As replacement parts is considered, in particular, the upper branch, which may be in the form of a removable tray.

The objective of the invention is the creation of a section of the gutter, which would provide all the advantages of a welded construction and at the same time eliminate the disadvantages of the known constructions of sections and which, in particular, due to its meaningful implementation would be economical to manufacture with a small total weight and with a small number of Assembly operations than the generic section.

This problem is solved by the features of the invention described in claim 1 of the formula. Preferred embodiments of the given in the dependent claims.

The section of the gutter according to the invention the sidewalls consist of the location is different mirror-inverted one-piece rolled profiles constant along the length of the sections of the form, and rolled profiles, being bent outward, include upper and lower shelves, as well as connecting them, the protruding intermediate shelf, provided with a bend, where the inner side is made of at least one step for maintaining and welded to frame, at least one reinforcing rod profiles of the intermediate sheet. According to the invention, the sidewall is formed, therefore, acting mainly along the entire height of the section of the trench, approximately U-shaped rolled profile asymmetrical shapes. Profile shape when it is due to bending for placement at least partially flush functional and attachable parts, so that a special form of rolled profile facilitates the necessary operations on the installation of the joining parts and facilitates the execution of the weld. The reinforcement frame is approximately in the middle between the lower and upper branches, but through additional, which transport the bottom of the intermediate sheet.

In the preferred intermediate shelf rolled profile is supplied with the second step to maintain the transport of the bottom, preferably the upper closing surface of the bend forms the second step. Thanks to this measure the transport plate is supported intermediate sheet, and steps inside rolled profiles, or are perceived and all efforts in the vertical direction. Further preferably, the upper section of the intermediate shelves above the curve shifted outward relative to the lower segment of the intermediate shelf under bending more than the wall thickness of the segments of the intermediate shelf, so that it may be provided with lateral support to transport the bottom over a large area. Further preferably lower part of the intermediate shelves rolled profile under the step forms its inner side directly to the side walls of the lower branches, and the upper section of the intermediate shelf above step and/or the bending limits of their inner side of the receiving space to be made in the form of a removable tray top branches. If the side walls of the lower branches integrated into the rolled profile, the total weight of the section of the gutter is significantly reduced. Because the lower branches are usually not transported material or coal, this measure will not have a negative impact on the overall service life of the section of the gutter. As is in itself known, a removable tray for the upper branch may consist then of the two rolled, essentially L-shaped, angular or T-shaped and mainly correspond to the shape of the profile scrapers side profiles and welded them transport bottoms.

One is the preferred form of rolled profile differs the wall thickness of the lower segment of the intermediate shelf, generally equal to the wall thickness of the upper segment of the intermediate shelves and smaller wall thickness, which is connected in one piece with the intermediate shelf bottom and/or top shelf. Particularly preferably, if the rolled profile in the bending area is equipped with an amplifying step/steps influx of material and/or directly above the curve has the smallest wall thickness, so that every effort can be reliably introduced from a removable tray in the rolled profile. In addition, the transport plate can then be slightly overhang the sides of the upper branches, so that there is enough space to accommodate a weld between the transport plate removable tray and side profiles. Top shelf rolled profile can be deflected, in particular, at right angles to the upper segment of the intermediate shelf, and/or on the inner side of the upper segment of the intermediate shelves at the height of the top shelf made the rib, which in assembled condition, forms the only contact surface and the lateral fixation for removable tray.

Especially preferred if the lower part of the intermediate shelf and the bottom shelf form and restrict dredging to maintain and accommodate flush respective tabs on the connection among the communities section of the gutter and/or connecting the console to the walking beam. Accommodation and fit flush connecting means section of the gutter and mounting consoles has not only a technological advantage, but after mounting and welding the rolled profile is additionally supported above the bend, so that it can be seen the greatest efforts and pressures directed at a section of the gutter mining machine. Preferably the intermediate shelf provided on the outer side in the bending area of the bevel at 45about, 60aboutor with an intermediate value.

To simplify and facilitate the installation section of the gutter rolled profile can have on the inner side of the lower segment of the intermediate shelf, preferably at the height of the bottom shelf, the spout to maintain and welding of the sheet forming the bottom of the lower branches. Both spout on facing each other, the inner sides of the rolled profiles simultaneously form a positioning device for sheet, plate and can serve as protection of the weld pool for a solid weld connecting the end the ends of the bottom sheet with rolled profiles. If the lower branches separate the side profiles are missing, and the lateral orientation of the scraper is provided by the lower segments of the intermediate shelves rolled profile, sheet the bottom of the lower branches should be bent at Saint is their boundary bars in accordance with profiling scrapers scraper chain and/or under the bottom sheet, and rolled profile welded wedge-shaped leaves stiffness for a single or additional maintenance of the bottom of the lower branches. Further preferably, the bottom shelf is bent relative to the lower segment of the intermediate shelves more than 90aboutif necessary approximately 94±2about. One run-rolled profile, according to the invention, the bottom shelf can be given out for the top shelf and move in one piece, mainly through a stepped offset, cut strips of the bottom. One alternative forms of execution of the lower and upper shelves can end approximately on the same vertical line. As cut strips of the bottom may then be welded additional rolled profiled rod, etc. Composite design cut bottoms facilitates rolling forming sidewall rolled profile and provides the greatest minimization and optimization of the weight of the rolled profile. The latter form of execution is particularly favorable, if the lower shelf rolled profile ends approximately L-shaped thickening, forming a support on the footwall. Thickening shelf provides that in the application section of the gutter as a hole Transporter from the chest stope and side tabs can be welded at different heights trims the bottom, leaves the other

In the preferred implementation of two spaced parallel to each other and leaving between them a free hole sheet strip forming the intermediate sheet and weld them to the bottom step of bending rolled profiles. The hole between the two sheet strips reduces the overall weight of the section of the gutter and provides at the same time, after the dismantling of the removable tray or removable tray, made in the quality inspection of the tray, the inspection hole for the lower branches. The form complete with removable tray is particularly preferred if the lateral profiles are horizontal shelves, welded with upper shelves rolled profile predominantly single continuous longitudinal weld seam as a means of fixing a removable tray. It is clear that the top shelf is issued mainly farther outward than the horizontal shelf lateral profiles removable tray. Alternatively, the side profile may be L-shaped and preferably a single continuous longitudinal weld seam on the gap between the side profile and the top shelf can be welded to the latter. Further preferably inward horizontal shelf on the upper side of the can end is then flush with the top shelf, rolled profile. To dismount a removable tray longitudinal the Varna seam mechanically cut, for example wireservice. Due to the strong welding removable tray top shelf, rolled profile eliminates all the disadvantages of detachable fastening means for removable trays. Due to constant along the length of the section of chute design as rolled profiles and side profiles removable trays not only automated mechanical welding and manufacture of individual sections of the gutters, but the cutting of welds to replace the removable tray can occur by mechanical means. Forming an intermediate sheet sheet strip and/or the transport plate can be provided at the ends of manufactured gas cutting curved edges, and a convex profile one edge made in accordance with the convex profile of the other edge. In a preferred implementation, a removable tray as the inspection tray it is made of three identical segments with one segment of the transport bottom and two, mainly T-shaped segments of the side profile, and the outer edges of the horizontal shelves of the segments of the side profiles are welded to the upper face of the upper shelves welded longitudinal seams, and the middle section of the tray is fixed detachable fastening means on both other sections of the tray and/or forming a sidewall rolled profiles. Mainly about the cutting transport bottoms of all segments of the tray is provided by the ends of the tray are made mostly of gas sharp convex edges, moreover, the convex profile of one edge is made in accordance with the convex profile of the other edge.

It is advisable one sheet strips on the end section of the chute is at the end for both rolled profile, and the other sheet strip is offset backwards from the end of the section. Thanks to these measures, the overlap occurs at the junction of the sections of the chute, so that the fine material may fall from the top branches on the bottom. For welded sections of the gutter its connecting means comprise preferably forged and welded to the rolled profile strap, rope, cord pockets, which invest in a head tap wrenches. As already mentioned, strap, rope, cord pockets have tabs that fit in the grooves under the curve and between the lower segment of the intermediate shelf and the bottom shelf rolled profile and can enter into the recess flush. Welding strap, rope, cord pockets for rolled profiles is preferably such that the strap, rope, cord pockets on one end section of the chute stand for rolled profiles and are located at the other end section of the gutter with offset back so that due to the overlapping strap, rope, cord pockets at the junction of two adjacent sections of the trench prevents fatigue wear or chipping on the front ends of rolled sections and/or transport of the bottom.

Preferably a pair of the press to offset the lower segment of the intermediate shelf relative to the upper must be for example, at 35±2 mm larger than the thickness of the vertical wall shelves side profiles removable tray, and the thickness of their walls should be considered sufficient thickness wear a few millimeters, for example 15 mm Size of opening of rolled profiles between the top and bottom shelves can be reduced to an intermediate shelf, if the upper and lower shelves of the expanding section is transferred into the segment intermediate shelves.

Other advantages and improvements section of chute according to the invention, the following description of several examples of how to perform schematically depicted in the drawings, which represent:

figure 1 is a perspective view of a section of the gutter according to the invention in the first exemplary embodiment with a raised removable tray;

figure 2 is a vertical section of the section of the trench in the first form of execution of figure 1 when mounted on removable tray;

figure 3 - the shape of the rolled profile according to the invention, used in a section of the gutter of Fig 1 and 2;

4 is a vertical section view of a section of gutter with a rolled profile in an alternative form of implementation;

5 is a vertical section view of a section of gutter with a rolled profile in the third form of implementation;

6 is a perspective view of the inspection tray formed by three identical segments;

7 is a top view of the inspection tray.

Hereafter the Chennai figures 1 and 2 in General POS section of the gutter includes a frame structure 1 with the lower branch 2 and forming the upper branch 3, made removable and based on the frame structure 1 tray 4. Removable tray 4 consists of a welded structure with two spaced mirror-inverted, approximately T-shaped and consisting of a rolled profile side profile 5, each of which has a horizontal shelf 6 and the vertical rack 7, which is welded seam (not shown) at its sole welded with consisting of a rolled sheet transport plate 8. Transport plate 8 is in hand for vertical shelf 7 lateral profiles 5 for a short distance, so that the mechanical path between the vertical shelf 7 and the transport plate 8 can perform the weld. Converted to upper branches 3 or to transport the bottom 8 of the inner side 9 of the side profiles 5 are supplied malaysiacialis profile contour which matches the external profile moving in the bottom 2 and top 3 branches of the scrapers of the scraper chain (not shown).

Frame construction 1 section 50 of the gutter includes as essential to the invention, the two parts are made identical to each other, asymmetric and arranged mirror-inverted, manufactured by profile rolling of the rolled profile 10 is approximately U-shaped form, which form a sidewall section 50 of the gutter. The design of the rolled profile 10 is explained first with reference to figure 3.

Whole rolled profile 10 includes a bottom shelf 11, the upper shelf 12 and connecting them together intermediate shelf 13 having approximately in the middle of the bend 14 which divides the intermediate shelf 13 on the bottom 15 and top 16 segments. Due to the bend 14 of the upper section 16 of the intermediate shelf is displaced outward relative to the lower segment 15 parallel to the thickness W of the wall of the lower segment 15 of the intermediate shelf, and here the term "outward" refers to the offset or the lamina to the outer side of the mounted section of the gutter, while the concept of "within" or "inside" means addressed to both branches 2,3 side. The bottom 11 and top 12 shelves are angled outwards relative to, respectively, the bottom 15 and top 16 segments intermediate shelves. The bend 14 of the intermediate shelf 13 is provided on its inner bottom 17 and top 18 steps, and the top rung 18 is aligned with the horizontal upper side 19 of the bend 14 and has a substantially greater width than the horizontal support surface 33 of the step 17. Both steps 17,18 supported at the bottom by the influx of 20 material in the bending area 14 and are vertically aligned above the lower segment 15 of the intermediate shelf, so passed on the steps 17,18 efforts and loads can be absorbed without power points lower segment 15 of the intermediate p is the CTL. Covering the surface 19 of the upper ledge 18 ends with a fillet 21, which are relatively inner side 22 of the upper segment 16 of the intermediate shelf is outside the recess, so that the rolled profile 10 in the area of the fillet 21 has a minimum thickness of W1wall. The inner side 22 of the upper segment 16 of the intermediate shelf is at the height of the upper shelf 12 rib 23, the end surface 24 of the inner side of which is vertically aligned with the outer side 25 of the lower segment 15 of the intermediate shelf and approximately 5 mm stands for the inner side 22 of the upper segment 16 of the intermediate shelves. The end surface 24 of the ribs 23 through the intermediate bevel 25 enters oriented horizontally and at right angles to the inner side 22 of the upper side 26 of the convex upper shelf 12. The upper shelf 12 is extended at the same time, proceeding from its outer end surface 28 to the intermediate shelf 13, so that the lower side 27 of the upper shelf 12 concludes with the outer side 29 of the upper segment 16 of the intermediate shelf angle α about 94about. In the curvature between the upper shelf 12 and the upper segment 16 of the intermediate shelves rolled profile 10 forms a stabilizing and supporting the upper shelf 12 thickening. The outer side 29 of the upper segment 16 of the intermediate shelves through located at an angle of approximately 45about the bevel 30 enters the outer side 25 of the lower segment 15 of the intermediate shelf, and the bevel 30 forms the outer wall of the bend 14 or the influx of 20 material. Due to the bend 14 and the offset between the bottom 15 and top 16 segments intermediate shelves in the rolled profile 10 is formed a recess 31, which extends below the upper segment 16 of the intermediate shelves and limited to the bevel 30, the outer wall 25 of the lower segment 15 of the intermediate shelf and the top wall 32 of the lower shelf 11. The top wall 32 bent at relatively outer wall 25 at an angle βthat, as the angle α, 94about. In General, the rolled profile 10 made this so that the horizontal support surface 33 of the step 17 is located exactly in the middle between the top wall 32 of the lower shelf 11 and the bottom side 27 of the upper shelf 12 and is separated from them both at a maximum distance of about 125 mm bottom shelf 11 terminates at its outer end 34 of approximately L-shaped thickening or crimping 35, which rolled profile 10 section 50 of the chute (figure 1) may rely on the footwall, which encapsulates the lower side 39 of the lower shelf 12 from lying flank and becomes S-shaped bulge at the bottom side 39 of the lower shelf 11. To the underside 39 of the lower shelf 11 is adjacent the intermediate bevel 38, directly above the spout 37, which is about the will formed bottom closure of the inner wall 36 of the lower segment 15 of the intermediate shelf and which can build sheet the bottom as the bottom of the lower branches, as explained below. The rolled profile 10 preferably has an overall height between the side of the sole thickening of the shelves 35 and the upper side 26 of the upper shelf 12 of about 340 mm at a thickness of W2walls of the bottom shelf 11 of about 35 mm, the thickness W of the bottom wall 15 and top 16 segments intermediate shelves, respectively, about 31 mm and 30 mm and minimum thickness of W1wall in the area of the fillet 21 directly above the bend 14 of about 25 mm, All transitions rolled profile 10, as determined by the manufacturing technology, rounded.

Here we must return once again to figures 1 and 2. Both educated rolled profile 10 on 3 sides of the section 50 profile amplified two sheet strips 40A, 40B that are adjacent their lateral edges 43 to the supporting surface 33 of the lower rungs 17 (3) rolled profile 10 and are welded there passing horizontally welded seam, which perform welding machine and/or a welding robot. The height of the intermediate sheets 40A, 40B is equal to or slightly less than the distance between the support surface 33 and the end surface 19 on the curve 14, so that the transport plate 8 removable tray 4 in assembled condition may be based on the closing surface 19 of the upper step 18 in the bending area 14 rolled profiles. As seen later in figure 2, a removable tray 4 adjacent horizontal shelves 6 lateral profiles 5 in which rhna side 26 of the upper shelves 12 rolled profile 10 and is welded there with them on both sides of the longitudinal welds 41, 42, and the welded seam 42 may also be absent. Due to constant along the length of the section of the cross section of rolled profile 10 and the side profile 5 welds 41, 42 can be executed in a specific position automatically by the welding robot. To dismount a removable tray 4 welds 41, 42 can be cut, milled for example, in order to install a new removable tray 4 and weld the new welds 41, 42 forming sidewall rolled profile 10. Positioning a removable tray 4 across the direction of movement of the scraper occurs exclusively through the end surfaces 24 of the ribs 23. The offset between the bottom 15 and top 16 segments intermediate shelves in the rolled profile 10, as clearly seen in figure 2, is selected in such a way that in a state of mounting the circuit 9 vertical shelves 7 lateral profiles 5 coaxially with the inner surfaces 36 of the lower segments 15 of the intermediate shelf, so that the distance of the light between the two lower segments of 15 intermediate shelves each rolled profile 10 corresponds to the distance between the light vertical shelves 7 lateral profiles 5 and scrapers with a small surface friction going between lower educated segments of 15 intermediate shelf side constraints, lower branches 2, and between the side profiles 5 in the top 3 branches. As the bottoms of the lower branch includes a sheet 44 with a curved top and a consistent profile shape scrapers (not shown) edge slats 45, which its marginal edges 46 are based on the spouts 37 in the area of the soles of the lower segments 15 intermediate shelves and welded over the spouts 37 additional welds (not shown), which may be due to the linear orientation automatically on top of the welding robot. The spouts 37 is formed at the same time protecting the weld pool for welds.

Depicted in figure 1 and 2 of section 50 of the runner is equipped with attachable parts for use in downhole conveyor. Figure 1 is a rear and right in figure 2, the rolled profile 10 forms the face of the conveyor sidewall from bookmarks, to which is welded to the side sheet 51, in order from the side of the bookmarks by holders 52 can be mounted drive shaft (not shown) to combine with the drum by the Executive body, while the part of the breast stope welded bent guide plate 53 which, when the downhole shifting conveyor or section 50 of the gutter serves static loading platform for the bulk of the breed. The shifting section 50 of the gutter or downhole of the conveyor is supported by a support (not shown) and its member mounted side tabs connecting the console 54 of walking beams (not shown). Guide plate 53 at its upper edge 54 is welded welded seam (not shown) with the upper shelf 12 kata is on profile in particular, with its outer end surface 28, and at its lower edge 56 is formed with from rod rolled profile bottom plate 57 which is welded to the outer side 34 of the lower shelf 11.

For the compilation of the sections 50 of the grooves according to the invention downhole or gathering conveyor at both rolled profile 10 near the opposite ends of the sections of the chute preferably welded wrought-iron strap, rope, cord pockets 60, provided, as clearly seen in figure 2, the tab 60', which is flush in the recess 31 (Fig 3) rolled profile 10 and covers the bottom of the bend 14 of the rolled profile 10 in order to additionally support the upper section 16 of the intermediate shelves. On one of both ends of the section of the gutter both strap, rope, cord pocket 60, as clearly seen from figure 1 on the right end of the section, are both rolled profile 10 a few centimeters, while at the other end of the section (figure 1 left) both strap, rope, cord pocket 60 is moved forward, so that the two mounted next to each other of the sections 50 of the gutter end face 61 of the two strap, rope, cord pockets 60 directly vzaimozachety. For fastening the two sections of the chute in a strap, rope, cord pockets 60 are investing tap wrenches (not shown). Also the console 54 has a profile contour with the tab 54', which it is flush in the recess 31 (Fig 3) on the outer side is not lower segment 15 of the intermediate shelves rolled profile 10 from bookmarks and bottom covers with flush bend 14. As the strap, rope, cord pockets 60, during installation connecting the console 54 its precise positioning is also determined by the notch in the sidewall 10 and the corresponding protrusion 54' connecting the console 54.

Figure 1 shows further that the sheet strip 40A stands for the rolled profile 10 on one end section of the chute, while the sheet strip 40 In the rear end section is moved forward relative to the rolled profile 10. The end edge 47 of the sheet strips 40A and the end edge 48 of the sheet strip 40B, as well as the edges 8A, 8B of the transport plate 8 made curved by gas cutting, so that the scrapers at the junction of the sections of the trough moving in the next section relatively silently. Both sheet strips 40A, 40B are welded at a distance from each other to the step 17, so that between the inner edges of sheet strips 40A, 40B formed hole when removing removable tray 4 can serve as the inspection hole for the lower branches 2.

Figure 4 shows the second example of section 150 of the gutter, and the same parts are denoted by the same reference position. Section 150 of the gutter in figure 4 differs from section 50 of the gutter in figures 1 and 2, in particular, the shape of the rolled profile 110 in the zone of the lower shelves 111, while an intermediate shelf 113 with steps on the curve 114 is made identical to the previous exemplary embodiment, so that in beanie repetitions reference should be made to the previous description. Bottom shelf 111 is here instead of thickening a stepped ledge 170, through which it passes in one piece into the segment 171 of the lower plate. The end 134 of the lower shelf 111 is issued so outward beyond the outer end surface 128 of the top shelf 112 rolled profile 110. By performing segment 171 of the lower strap and the bottom shelf 111 for one weld seam disappears. In section 150 of the gutter forming the bottom of the lower branches 102 sheet 144 is covered below several wedge-shaped on its upper side and is flat on its bottom side, forming the edges of the bottom sheets 172 stiffness, which is welded to the lower sides 145' bent edge strips 145, to the bottom 139 of the lower shelves 111 and the lower intermediate bevel 138. By the end of the segment 134 171 lower strap cooked path 174, which combine with the drum by the Executive authority as the mining machine may draw from the chest stope before the section of the trench and before guiding sheet 153.

Figure 5 shows a third example of implementation of section 250 of the gutter. Also here, the same components are marked increased by 100 reference positions. Removable tray 204 is made identical to the first and second examples, and the rolled profile 210 has top shelf 212 and the upper segment 216 intermediate shelves the same design and the same dimensions as in the examples done is to Fig.1-4. The lower segment 215 intermediate shelves 213 is made on its inner side 236 flat and goes without spout through the fillet 280 with a relatively large radius of curvature in the bottom shelf 211, which is on the lower side of 281 along the entire length of the section of the gutter and across the width of the rolled profile is planar and ends one segment 271 lower trims. On the upper side 232 of the lower shelves 211 on the same vertical line with the outer end surface 228 of the top shelf 212 is executed ledge 282; segment 271 the lower strap has a substantially smaller wall thickness than the bottom shelf 211 on the inner side of the ledge 280, i.e. in the area of open space between the top 211 and bottom shelves 212 rolled profile 210. Forming the bottom of the lower branches 202 sheet 244 is also supported multiple distributed along the length of the section of trench sheets 272 stiffness, which on the upper side is made wedge-shaped, and the lower side is flat and which is under the rear sides 245' edge slats 245 and in the area of the fillets 280 is welded to the lower segments 215 shelves rolled profile 210. Bending 214 rolled profile 210 has at section 250 of the gutter on the outside bevel 230, with an angle of about 60aboutruns cooler than the bevel of the sections 50 and 150 figure 1-4. The influx 220 material that supports the steps on the curve 214, expressed so rolled profile 20 is stronger and rolled profile 210 may therefore due to this greater influx of material and more massive run bottom shelf 211 is especially beneficial to maintain the path to combine with the drum by the Executive body from the chest stope, fixed on the top shelf 212.

Figure 6 and 7 shows a preferred form of execution of the inspection tray, made as a removable tray 3-4. It is made of three identical segments A, 304 IN one segment 308 transport bottoms and two, mainly T-shaped segments 305 side profiles with vertical shelf 307 and horizontal shelf 306, which have the same profile as the side profiles 5, 105, 205 other removable trays. The inspection tray outer end surface 328 horizontal shelves 306 segments 305 lateral profiles of both outer segments A tray welded to the upper face of the upper shelves of the rolled profile 10, 110, 210 welded longitudinal seams that extend along the length of the corresponding segment A tray. The middle section V tray, on the contrary, fixed detachable fastening means (not shown) on both other sections A tray and/or forming a sidewall rolled profile 10, 110, 210, so he for inspection scraper chain in the lower branches can be in a short time removed through the CTE is rtie 49 (figure 1) between the intermediate leaves. Segments 308 transport bottoms of all segments A, W tray is provided by the end of the tray is preferably made by the use of gas convex cutting edges A, B, with a convex profile edge A performed corresponding convex profile edge B, as particularly well seen in Fig.7.

For professionals from the preceding description it follows a number of modifications which will fall within the scope of protection of the attached claims. In particular, in relation to profiling the bottom shelf and profiling the outside of the bend is also possible intermediate forms produced by rolling and providing a positive locking strap, rope, cord pocket and mounting consoles while maintaining the upper segment of the intermediate shelf and the top shelf rolled profile. All forms of execution according to the invention the sidewalls consist of perceiving the effort and load rolled profile with a bend, and the sections of the trough are, in General, a minimum connected for several Assembly operations number preferably optimized in weight parts. The side profiles removable tray can be made in contrast to the depicted exemplary embodiment is also L-shaped or angular. The intermediate sheet may be performed as a whole, even if the form you are the filling up of two sheet strips gives advantages both in terms of production costs, and in relation to the total weight of the section of the gutter.

1. Section of trench for underground face and gate conveyors, containing the means of connection and welded frame construction with the transport plate (8), forming the upper and lower branches for conducting the scrapers of the scraper chain, and the frame has a sidewall that includes a bottom (11; 111; 211) and upper (12; 112; 212) shelves, as well as connecting them protruding intermediate shelf (13), characterized in that the sidewalls consist of a mirror located relative to each other one-piece rolled profiles (10; 110; 210) is constant along the length of the section gutters asymmetric shape, with the bottom (11; 111; 211) and upper (12; 112; 212) shelves are angled outwards, and the connecting intermediate shelf (13) provided with a bend (14; 114; 214), where the inner side is made of at least one step (17) to maintain and welding at least one intermediate plate (40A, 40B), reinforcing rolled profiles (10; 110; 210) of the frame (1), and the upper segment (16; 216) intermediate shelves above the bend (14; 114; 214), offset outwards relative to the lower segment (15; 215) intermediate shelf located under the curve (14; 114; 214), the thickness (W) of wall sections intermediate shelves, while the transport plate (8) is welded to the two rolled, essentially L-shaped is T-shaped and preferably corresponding to the shape of the profile scrapers side profiles (5) forming a removable tray (4), forming the upper branch of the frame structure.

2. Section according to claim 1, characterized in that the intermediate shelf (13) rolled profile (10) is provided with a second step (18) to maintain the transport plate (8) removable tray (4), preferably the upper surface (19) of the bend (14) forms this second step.

3. Section according to claim 1, characterized in that the lower part of the intermediate shelves rolled profile (10; 110; 210) under the step forms its inner side (36; 236) the side walls of the lower branches (2; 102; 202), and the upper segment (16; 216) intermediate shelves above step and the bending limits of their inner side of the receiving space for removable tray (4; 104; 204) as the upper branches.

4. Section one of claims 1 to 3, characterized in that the thickness (W) of the bottom wall (15; 215) and upper (16; 216) segments intermediate shelves less than the thickness (W2) bottom wall (11; 111; 211) and/or the top (12; 112; 212) shelves.

5. Section one of claims 1 to 4, characterized in that the rolled profile (10; 110; 210) in the bending area (14; 114; 214) is provided with a reinforcing step/steps influx (20; 220) of the material and/or directly above the bend (14; 114; 214) has the smallest thickness (W1wall.

6. Section one of claims 1 to 5, characterized in that the upper shelf (12; 112; 212) rolled profile (10; 110; 210) bent at a right angle to the upper segment (16; 116; 216) ex is offered by the shelves and/or on the inner side (22) of the upper segment of the intermediate shelves at the height of the top shelf made edge (23).

7. Section one of claims 1 to 6, characterized in that the lower part (15) of the intermediate shelf and the bottom shelf (11) form and limit the notch (31) to maintain and accommodate flush respective protrusions (54'; 60') on the connecting means (60) sections and/or console mounting (54) for the walking beam.

8. Section one of claims 1 to 7, characterized in that the intermediate shelf (13; 113; 213) is provided on the outer side in the bending area (14; 114; 214) bevel, angled at 45° or 60°or this angle has an intermediate value between the specified values.

9. Section one of claims 1 to 8, characterized in that on the inner side (36) of the lower segment (15) of the intermediate shelf, preferably, at the height of the bottom shelf (11), the nose (37) to maintain and welding forming the bottom of the lower branches sheet (44).

10. Section one of claims 1 to 9, characterized in that the sheet (44; 144; 244) of the bottom of the lower branches bent at their edges (45; 145; 245) in accordance with profiling scrapers scraper chain and/or under the sheet (144; 244) of the bottom, and rolled profile (110; 210) is welded wedge-shaped leaves (172; 272) stiffness for a single or additional of the support plate (144; 244) lower branches.

11. Section one of claims 1 to 10, characterized in that the bottom shelf (11; 111; 211) bent relative to the lower section 15; 115; 215) intermediate shelves more than 90°.

12. Section one of claims 1 to 11, characterized in that the bottom shelf (111; 211) is out for the top shelf (112; 212) and passes in one piece into the segment (171; 271) lower bracket.

13. Section 12, characterized in that the bottom shelf (111; 211) ends in the interval (171; 271) lower bracket through a stepped ledge (170) or through a ledge (282).

14. Section one of claims 1 to 11, characterized in that the bottom (11) and upper (12) shelves end approximately on the same vertical line.

15. Section 14, characterized in that the bottom shelf (11) rolled profile (10) ends approximately L-shaped thickening (35)forming the support.

16. Section one of claims 1 to 15, characterized in that the intermediate plate (40A, 40B) is formed by two spaced parallel to each other and leaving between them a free hole (49) sheet strips.

17. Section one of claims 1 to 16, characterized in that the removable tray (4) has essentially T-shaped side profiles (5) horizontal shelf (6), welded with upper shelf (12) rolled profile (10) is preferably a single continuous longitudinal weld seam (41; 42) for fixing the removable tray (4).

18. Section one of claims 1 to 16, characterized in that the removable tray has a L-shaped side profiles with vertical and horizontal shelves and in the assembled condition, the removable tray is preferably a single continuous welded longitudinal seam is welded in the gap between the side profile and rolled profile for fastening a removable tray, and further preferably a horizontal shelf L-shaped side profile end flush with the corresponding top shelf, rolled profile.

19. Section one of claims 1 to 18, wherein forming the intermediate sheet (40A, 40B), a metal strip and/or transport plate (8) provided at the ends of the sections are made gas cutting curved edges (47, 48; 8A, 8B), with the convex profile of one region (47; 8A) is made in accordance with the profile of the other edge (48; 8B).

20. Section one of claims 1 to 16, characterized in that the removable tray (304) to be used as the inspection of the tray is preferably made of three identical segments (A, B) with one segment (308) transport of the bottom and two essentially L - or T-shaped segments (305) lateral profiles, the outer end edges of the horizontal shelves (306) segments (305) lateral profiles are welded to the upper face of the upper shelves of rolled profiles (10, 110, 210) longitudinal welds, and the average segment (V) bin fixed detachable fastening means on the two other sections (A) of the tray and/or forming a sidewall rolled profiles(10; 110; 210).

21. Section claim 20, characterized in that the segments (308) transport bottoms of all segments (A, V) of the tray is provided by the ends of the tray is preferably made gas cutting convex is the Rai (A, V), with a convex profile of one region (A) made in accordance with the profile of the other edge (W).

22. Section one of PP-21, characterized in that one of the sheet strips (40A) on the end of the section stands for both rolled profile (10), and the other leaf stripe (40B) is offset backwards from the end section of the chute.

23. Section one of claims 1 to 22, characterized in that the connecting means (60) in the form of a strap, rope, cord pockets at one end of section issued for rolled profiles (10), and at the other end of the section is welded offset backwards from rolled profiles (10).

24. Section one of claims 1 to 23, characterized in that when using a section of gutter in the design of the face conveyor between the end edge (34, 134) of the lower shelves or cut (171) this shelf and the bottom edge of the outer end surface (28) of the upper shelf (12) is welded angled guide plate (53; 153) for the formation of the loading dock.

25. Section one of claims 1 to 23, characterized in that the preferably parallel shift of the upper segment (16) of the intermediate shelf relative to the lower segment (15) of the intermediate shelf is also greater than the thickness of the vertical shelf lateral profiles removable tray.

26. Section one of claims 1 to 25, characterized in that the size of the throat of rolled profiles (10; 110) between the upper (12; 112) and lower (11; 111) is kami decreases in the direction towards the intermediate shelf (13; 113).



 

Same patents:

FIELD: mining industry.

SUBSTANCE: proposed member includes slats with connecting elements secured on running rollers and round-link chain. Connecting elements are made in form of two guide slats, fastening, fastening pin and yoke enclosing horizontal links of chain, and ends of vertical links are located between guide slats.

EFFECT: reduced metal usage for manufacture of connecting elements, reduced time taken for mounting and demounting, simplified design of traction-and-carrying member of slatband conveyor.

2 dwg

Scraper conveyor // 2272773

FIELD: mechanical engineering; conveyors.

SUBSTANCE: invention relates to conveyors with multichain traction member. Proposed scraper conveyor contains endless traction member consisting of parallel traction chains, two outer chains and one inner chain, closed in vertical plane on end sprockets and resting on guides of panline flight. It is provided with scrapers secured in turn by ends on outer chains, alternating with scrapers freely fitted with clearances between outer chains and attached by ends on inner chain. Scrappers secured on outer chains are provided with cavities for accommodating inner chain. Traction member is furnished with additional inner chain, both inner chains being arranged in middle part of panline flight symmetrically to each other relative to longitudinal axis of conveyor, and scrapers being secured by ends on both inner chains. Distance between outer and inner chains is set less than distance between inner chains.

EFFECT: increased length of flight owing to increased summary breaking force of traction member chains.

2 dwg

FIELD: mining industry; mine plants.

SUBSTANCE: invention is designed for selective transportation of mineral resources. Proposed conveyor contains rigidly mounted on buntons chute-like section guide conductors with curvilinear sections, articulated members with two load-carrying units freely suspended from axles and arranged symmetrically on each member and provided with gear wheels for selective transportation of load, and guide rolling supports on axles of members for engagement with said guide conductors. Rolling elements of rolling supports are made in form of balls. Conveyor is furnished also with distributed linear hydraulic drive. Guide rolling supports are provided with metal journals with rectangular seats on free places of which detachable inserts are installed accommodating said rolling elements in form of balls. Detachable inserts are installed for corrective displacement by means of pressure spring to adjust distance between guide rolling supports and inner surfaces of chute-like section guide conductors.

EFFECT: provision of reliable operation of conveyor.

7 dwg

FIELD: mining industry; transport facilities.

SUBSTANCE: invention can be used for transportation of rock under ground, particularly, for reloading of rock from one conveyor to the other arranged at one level. For this purpose loose material reloading device is used which contains inclined and horizontal sections with drive arranged on support between two conveyors. Device is installed in housing with windows from side of conveyors, and is made in form of chain with scrapers passed over rollers and installed for moving in pair of trapezoidal guides. Housing is installed on support by means of hydraulic jacks. Angle of tilting α of side of trapezium is within 35° and 45°.

EFFECT: simple design, provision of effective and safe reloading of rock from one conveyor to the other arranged at one level.

3 dwg

Vibrating feeder // 2247068

FIELD: mining industry.

SUBSTANCE: invention relates to vibrating facilities and it can be used for letting out ore or other materials and their separation. Proposed vibrating feeder has resilient supports, working member consisting of charging and discharge parts and vibrating drive consisting of two shafts with unbalance weight and motors, one per each unbalance weight. Place of arrangement of vibrating drive is determined basing on the fact that line of connection of axles of unbalance weights is located in area limited by two straight lines square to direction of vibration, one of which passed through center of mass, and the other is located at a distance from center of mass of 1/10L to side of charging part of working member. Axle of unbalance weights are located at different sides from line of direction of vibration passing through center of mass at distance equal to not less than 1/8 where L is distance between resilient supports in horizontal direction.

EFFECT: improved stability of operation of vibrating feeder at unstable supply and impact loads on working member at discharging.

1 dwg

FIELD: mining industry.

SUBSTANCE: invention can be used for transportation of rock in underground mines for reloading of rock from one conveyor to the other installed at one level. For this purpose device is used containing pair of flight conveyors, forced-draught and suction fans, air chamber with air inlet hole provided with cyclone installed over flight conveyor to be loaded. Air chamber is arranged between conveyors and is furnished with air collector made in form of screen with cells, housing and brushes from side of conveyors. Additional hole is made in bottom of air chamber to deliver air jet at angle to direction of material movement.

EFFECT: device of simple design providing effective and safe reloading of rock from one conveyor to the other installed at one level.

1 dwg

FIELD: mining industry.

SUBSTANCE: method for extraction and underground use of coal includes cleaning extraction and dumping of coal, fixing and controlling ceiling and transporting coal along face to drift. On the drift, in moveable generator, coal is pulverized for intensive burning with use of jets in water boiler firebox, where high temperature of steam is achieved (about 1400 C), enough for decomposition of water on oxygen and hydrogen. These are separated, then oxygen is fed back to jets, and hydrogen is outputted along pipes and hoses in drifts and shaft. Variants of underground generator for realization of this method are provided. Also provided is method for extraction of disturbed coal beds by short faces. It includes extraction and dumping of coal on face conveyor, fixing of ceiling behind combine, moving conveyor line and support sections in direction of cleaning face displacement, control of ceiling with destruction and partial filling. Extraction of coal is performed in short curvilinear faces by long stripes along bed, in straight drive without forwarding drifts, with preservation and reuse of ventilation and conveyor drifts, equipped with mounting manipulator robots, with fixing behind combine by automatically operating support deflectors without unloading and displacing sections in area of coal extraction. Extraction and transporting of coal is performed by fast one-drum combine and curvilinear reloading conveyor, supplying coal to drift conveyor or immediately to underground gas or energy generator placed immediately on drift. Also proposed is face scraper conveyor for realization of said method, wherein pans are made with step along front face profile, greater, than along back one, while forming common line curved towards face with constant curvature. Also proposed is a method for controlling complex for unmanned coal extraction.

EFFECT: higher efficiency, effectiveness, broader functional capabilities.

8 cl, 5 dwg

The invention relates to vehicles and can be used to move the rock mass in underground conditions, in particular when reloading ore from conveyor to conveyor, located at the same level

Transport system // 2233379
The invention relates to the field of underground mine vehicles and can be used on the surface complex of mines, quarries and mines

The invention relates to a transport device, more specifically to the transport device suitable for use in mines and other earthworks, though not exclusively for such purposes

FIELD: railway transport.

SUBSTANCE: invention relates to machines for cleaning track ballast in process of repair of track. Proposed machine contains guide chute and endless jib chain installed on guide rollers in chute and provided with combs and pins on links for gripping and transporting crushed stone of ballast, chain drive and conveyor for delivering crushed stone into cleaning system. Detachable panels with protective coating in form of hard alloy plates are secured on inner surface of guides chute inlet has front edge drop-like in cross section.

EFFECT: considerable reduction of wear of chute by crushed stone transported in process of cleaning.

2 cl, 3 dwg

FIELD: mining industry; underground face and gate conveyors.

SUBSTANCE: proposed section of trough for underground face and gate conveyors contains upper and lower runs for driving scrapers of scraper chain, transport bottom separating them, connecting devices and two sides, each including rolled U-shaped steel section with one intermediate web and two flanged webs which are interconnected by at least one shaft arranged at approximately half of height and welded to vertically projecting intermediate web of U-shaped steel section. Said U-shaped steel sections pointed outside by their horizontal flanged webs are interconnected. Upper run has two separated rolled preferably L-shaped or T-shaped side sections being welded to transport bottom by upper webs. Sheet connecting U-shaped steel sections rests, through straps forming side guides for lower run, on sheet of bottom welded with lower flanged webs.

EFFECT: increased service life of section of trough, cut down cost of manufacture, simple design of trough, possibility of use on high capacity modern conveyors.

20 cl, 5 dwg

FIELD: mining industry; underground face and gate conveyors.

SUBSTANCE: proposed section of trough for underground face and gate conveyors contains asymmetrical sides consisting of cast parts interconnecting on intermediate web by welded-to sheet, which, projecting outside from intermediate web, include upper molded-to flanged projection and lower to-to flanged web and to-to foot flange projecting inwards which partially limits from side a lower run to drive scrapers of scraper chain and to which sheet of bottom closing downwards lower run is welded. Cast part is provided at least one step on inner side of intermediate web mainly at half of height between flanged web and flanged projection. Said step is used to support and to weld-to intermediate sheet of bottom. Intermediate web and foot flange form profiled reinforcement under step. Intermediate web over step limits from side the intake space for upper run containing rolled side sections welded with transport bottom.

EFFECT: increased service life of trough section, cut down cost of manufacture.

28 cl, 6 dwg

FIELD: conveyers comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material.

SUBSTANCE: chute section of coal production rig has load-lifting shaft section and reverse stroke shaft section adapted for scraper chain conveyer guider receiving. Chute base is located between the sections. The chute base has fixing means arranged from embedding side and from face side at chute ends to receive connection member of chute sections, which connects adjacent chute sections with each other to provide tensile strength thereof. The chute also has guiding means to guide production machine, which moves along mining face plane, and deflected guiding sheet, which creates loading platform connected with chute section from mining face plane side and extending from bed to load-lifting shaft section. Degree of lower guiding sheet part folding relatively chute base exceeds that of upper guiding sheet part. The guiding sheet is provided with depressions formed at chute section ends. The depression sizes correspond to that of fixing means and/or connection means, which connect chute sections one to another. Lower part of guiding sheet defines bridge at lower edge. The bridge extends to chute section ends.

EFFECT: elimination of face conveyer lifting.

22 cl, 2 dwg

FIELD: mining industry.

SUBSTANCE: method for extraction and underground use of coal includes cleaning extraction and dumping of coal, fixing and controlling ceiling and transporting coal along face to drift. On the drift, in moveable generator, coal is pulverized for intensive burning with use of jets in water boiler firebox, where high temperature of steam is achieved (about 1400 C), enough for decomposition of water on oxygen and hydrogen. These are separated, then oxygen is fed back to jets, and hydrogen is outputted along pipes and hoses in drifts and shaft. Variants of underground generator for realization of this method are provided. Also provided is method for extraction of disturbed coal beds by short faces. It includes extraction and dumping of coal on face conveyor, fixing of ceiling behind combine, moving conveyor line and support sections in direction of cleaning face displacement, control of ceiling with destruction and partial filling. Extraction of coal is performed in short curvilinear faces by long stripes along bed, in straight drive without forwarding drifts, with preservation and reuse of ventilation and conveyor drifts, equipped with mounting manipulator robots, with fixing behind combine by automatically operating support deflectors without unloading and displacing sections in area of coal extraction. Extraction and transporting of coal is performed by fast one-drum combine and curvilinear reloading conveyor, supplying coal to drift conveyor or immediately to underground gas or energy generator placed immediately on drift. Also proposed is face scraper conveyor for realization of said method, wherein pans are made with step along front face profile, greater, than along back one, while forming common line curved towards face with constant curvature. Also proposed is a method for controlling complex for unmanned coal extraction.

EFFECT: higher efficiency, effectiveness, broader functional capabilities.

8 cl, 5 dwg

The invention relates to a conveyor transport, in particular to the adjustment of the length of the scraper conveyor stope and tension made its Central circuits of the rails with sliding end of the drive, and can be used in the head actuator or actuators of similar construction cranes

The invention relates to a scraper conveyor cleaning complexes coal faces and can be used to limit and similar structures of the head actuator or drive the scraper loader

The invention relates to konveyerostroeniya, in particular to the sections of gutters chain scraper conveyors

The invention relates to the mining industry, namely the downhole scraper conveyors mechanized complexes

The invention relates to a conveyor transport, in particular, to the scraper conveyors

FIELD: mining industry.

SUBSTANCE: method for extraction and underground use of coal includes cleaning extraction and dumping of coal, fixing and controlling ceiling and transporting coal along face to drift. On the drift, in moveable generator, coal is pulverized for intensive burning with use of jets in water boiler firebox, where high temperature of steam is achieved (about 1400 C), enough for decomposition of water on oxygen and hydrogen. These are separated, then oxygen is fed back to jets, and hydrogen is outputted along pipes and hoses in drifts and shaft. Variants of underground generator for realization of this method are provided. Also provided is method for extraction of disturbed coal beds by short faces. It includes extraction and dumping of coal on face conveyor, fixing of ceiling behind combine, moving conveyor line and support sections in direction of cleaning face displacement, control of ceiling with destruction and partial filling. Extraction of coal is performed in short curvilinear faces by long stripes along bed, in straight drive without forwarding drifts, with preservation and reuse of ventilation and conveyor drifts, equipped with mounting manipulator robots, with fixing behind combine by automatically operating support deflectors without unloading and displacing sections in area of coal extraction. Extraction and transporting of coal is performed by fast one-drum combine and curvilinear reloading conveyor, supplying coal to drift conveyor or immediately to underground gas or energy generator placed immediately on drift. Also proposed is face scraper conveyor for realization of said method, wherein pans are made with step along front face profile, greater, than along back one, while forming common line curved towards face with constant curvature. Also proposed is a method for controlling complex for unmanned coal extraction.

EFFECT: higher efficiency, effectiveness, broader functional capabilities.

8 cl, 5 dwg

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