CN219822631U - Middle groove and scraper conveyor - Google Patents
Middle groove and scraper conveyor Download PDFInfo
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- CN219822631U CN219822631U CN202320743099.9U CN202320743099U CN219822631U CN 219822631 U CN219822631 U CN 219822631U CN 202320743099 U CN202320743099 U CN 202320743099U CN 219822631 U CN219822631 U CN 219822631U
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- 239000000463 material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 12
- 238000007790 scraping Methods 0.000 description 27
- 239000003245 coal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000005065 mining Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The utility model provides a middle groove and a scraper conveyor, which comprises a shovel plate ledge, a baffle ledge, a sealing bottom plate and a middle plate structure, wherein the shovel plate ledge and the baffle ledge are oppositely arranged, the middle plate structure is positioned above the sealing bottom plate, and a scraper matched with the middle groove is parallel to the width direction of the middle plate structure. The medium plate structure includes medium plate main part and lapping plate, and the both sides of medium plate main part shovel board ledge respectively, baffle ledge fixed connection, and the one end in the medium plate main part is fixed to the lapping plate, and the upper surface of lapping plate and the upper surface parallel and level of medium plate main part, the thickness of lapping plate are less than the thickness of medium plate main part, and the other end of medium plate main part has the lapping groove, and the shape in lapping groove matches with the shape of lapping plate, and the lapping plate in one middle part groove is arranged in with the lapping groove inner wall overlap joint in another middle part groove, has straight seam between lapping plate and the lapping groove, and straight seam slope in the width direction of medium plate structure. The problem that the scraper blade produced impact and wearing and tearing middle part groove in the seam crossing of middle part groove has been solved to this scheme.
Description
Technical Field
The utility model relates to the technical field of scraper conveyors, in particular to a middle groove and a scraper conveyor.
Background
The scraper conveyor is main conveying equipment of the coal mine comprehensive coal mining complete equipment, and consists of scraper chains, a middle groove, a head part, a tail part and other parts, wherein the middle groove is a structural part with the largest number of the scraper conveyors. The middle grooves are connected by dumbbell pins, and the middle plates are lapped together. The middle groove mainly plays a role in guiding the scraping plate and the scraping plate chain, and the travelling rail of the coal mining machine plays a role. In the coal transporting process, the scraping plate and the scraping plate chain slide on the middle grooves, so that on one hand, the traction force of the coal mining machine, the cutting counter force and the thrust force of the hydraulic frame are born, and on the other hand, the working face bottom plate is not very flat, a dislocation phenomenon exists between the two middle grooves, when the scraping plate moves to a joint, the resistance is increased, and meanwhile, the scraping plate vibrates up and down. Therefore, the coal mining machine is subjected to the action forces of impact, pressure, friction, bending and the like in the coal mining process, the stress condition is complex, the joint of the middle groove is misplaced and not tight, the vertical vibration amplitude of the scraping plate at the joint is increased, and the ledge and the joint are subjected to the impact to be seriously worn firstly.
Disclosure of Invention
The utility model provides a middle groove and a scraper conveyor, which are used for solving the problem that a scraper impacts at a joint of the middle groove to abrade the middle groove.
In order to solve the above problems, according to one aspect of the present utility model, there is provided a middle tank including a shovel ledge, a baffle ledge, a sealing bottom plate and a middle plate structure, the shovel ledge and the baffle ledge being disposed opposite to each other, both sides of the sealing bottom plate being fixedly connected to the bottom of the shovel ledge and the bottom of the baffle ledge, respectively, the middle plate structure being located above the sealing bottom plate, a scraper engaged with the middle tank being parallel to a width direction of the middle plate structure, the middle plate structure including a middle plate body and a lapping plate, both sides of the middle plate body being fixedly connected to the shovel ledge and the baffle ledge, respectively, the lapping plate being fixed to one end of the middle plate body, an upper surface of the lapping plate being flush with an upper surface of the middle plate body, a thickness of the lapping plate being smaller than a thickness of the middle plate body, the other end of the middle plate body having a lapping groove, a shape of the lapping plate being matched with a shape of the lapping plate, a lapping plate in one middle plate groove being used for being in lap joint with an inner wall of the lapping groove in the other middle plate, a straight seam being provided between the lapping plate and the lapping groove, and being directly inclined to a width direction of the middle plate structure.
Further, the angle between the direct slit and the width direction of the middle plate structure is 2 DEG to 5 deg.
Further, in the width direction along the middle plate structure, two ends of the lapping plate are respectively provided with a large cambered surface and a small cambered surface, and the arc radius of the large cambered surface is larger than that of the small cambered surface; and the two ends of the lap joint groove are respectively provided with cambered surfaces matched with the large cambered surface and the small cambered surface along the width direction of the middle plate structure.
Further, the radius of the arc of the large arc surface is 40mm to 50mm, and the radius of the arc of the small arc surface is 20mm to 25mm.
Further, the middle plate structure is an integral structure; or the middle plate structure is a split structure, and the middle plate main body and the lapping plate are connected through welding.
Further, the material of the middle plate structure is wear-resistant steel plate.
Further, the thickness of the middle plate body is 30mm to 40mm.
Further, the thickness of the splice plate is greater than 18mm.
Further, the middle groove also comprises a toothed rail seat, the toothed rail seat is fixed on the upper side of the baffle ledge, and the two sides of the middle plate main body are respectively welded with the shovel ledge and the baffle ledge.
According to another aspect of the present utility model, there is provided a scraper conveyor including a head portion, a tail portion, a drive chain, a plurality of intermediate grooves, and a plurality of scrapers, the intermediate grooves being the intermediate grooves described above, the plurality of intermediate grooves being connected end to end between the head portion and the tail portion, the drive chain driving the plurality of scrapers to slide along the plurality of intermediate grooves.
By applying the technical scheme of the utility model, the middle groove comprises a shovel plate ledge, a baffle ledge, a sealing bottom plate and a middle plate structure, wherein the shovel plate ledge and the baffle ledge are oppositely arranged, two sides of the sealing bottom plate are respectively and fixedly connected with the bottom of the shovel plate ledge and the bottom of the baffle ledge, the middle plate structure is positioned above the sealing bottom plate, and a scraping plate matched with the middle plate structure is parallel to the width direction of the middle plate structure. The medium plate structure includes medium plate main part and lapping plate, and the both sides of medium plate main part shovel board ledge respectively, baffle ledge fixed connection, and the one end in the medium plate main part is fixed to the lapping plate, and the upper surface of lapping plate and the upper surface parallel and level of medium plate main part, the thickness of lapping plate are less than the thickness of medium plate main part, and the other end of medium plate main part has the lapping groove, and the shape in lapping groove matches with the shape of lapping plate, and the lapping plate in one middle part groove is arranged in with the lapping groove inner wall overlap joint in another middle part groove, has straight seam between lapping plate and the lapping groove, and straight seam slope in the width direction of medium plate structure. The middle plate structure of middle part groove overlap joint is in the same place, and the scraper blade promotes the material to slide in the middle plate top, and shovel board ledge and baffle ledge set up relatively, will follow scraper blade and the material that the middle plate top passed through spacing in middle part inslot portion. The middle plate structure is overlapped with the middle plate structure through the shape fit of the overlap groove and the overlap plate. The straight joint is inclined to the width direction of the middle plate structure, and the width direction of the middle plate structure is parallel to the scraping plate, so that the straight joint is not parallel to the scraping plate, and the scraping plate can not be in direct contact with the straight joint in the moving process, but gradually contacts with different positions of the straight joint, so that the resistance to the scraping plate is reduced at the position of the straight joint, the vertical vibration of the scraping plate is reduced, namely the impact of the scraping plate on the straight joint is weakened, and the abrasion of the middle groove is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 shows a schematic diagram of a structure in which two middle grooves overlap with each other according to an embodiment of the present utility model;
FIG. 2 shows a schematic structural view of a midplane provided by an embodiment of the utility model;
fig. 3 shows a front view of a central trough provided by an embodiment of the utility model.
Wherein the above figures include the following reference numerals:
10. a middle plate structure; 11. a middle plate body; 12. a lapping plate; 121. a large cambered surface; 122. a small cambered surface; 13. a lap joint groove;
20. a straight seam;
31. a shovel plate ledge; 32. baffle ledge; 33. a bottom sealing plate; 34. and a tooth rail seat.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 3, the embodiment of the present utility model provides a middle tank, which comprises a shovel ledge 31, a baffle ledge 32, a sealing bottom plate 33 and a middle plate structure 10, wherein the shovel ledge 31 and the baffle ledge 32 are oppositely arranged, two sides of the sealing bottom plate 33 are fixedly connected with the bottom of the shovel ledge 31 and the bottom of the baffle ledge 32 respectively, the middle plate structure 10 is positioned above the sealing bottom plate 33, a scraper matched with the middle tank is parallel to the width direction of the middle plate structure 10, the middle plate structure 10 comprises a middle plate main body 11 and a lapping plate 12, two sides of the middle plate main body 11 are fixedly connected with the shovel ledge 31 and the baffle ledge 32 respectively, the lapping plate 12 is fixed at one end of the middle plate main body 11, the upper surface of the lapping plate 12 is flush with the upper surface of the middle plate main body 11, the thickness of the lapping plate 12 is smaller than the thickness of the middle plate main body 11, the other end of the middle plate main body 11 is provided with a lapping groove 13, the shape of the lapping groove 13 is matched with the shape of the lapping plate 12, the lapping plate 12 in one middle part groove is used for lapping the inner wall of the lapping groove 13 in the other middle groove is in the middle groove, and the lapping joint seam 20 is provided with a straight joint seam 20, and the straight joint 20 is inclined to the width direction of the middle plate structure 10 is provided.
In this scheme, the medium plate structure 10 overlap joint of middle part groove is in the same place, and the scraper blade promotes the material and slides in medium plate structure 10 top, and shovel board ledge 31 and baffle ledge 32 set up relatively, and the scraper blade and the material that will pass through from medium plate structure 10 top are spacing at the middle part inslot portion. The middle plate structure 10 and the middle plate structure 10 are overlapped together through the shape fit of the overlap groove 13 and the overlap plate 12. The straight joint 20 is inclined to the width direction of the middle plate structure 10, and the width direction of the middle plate structure 10 is parallel to the scraping plate, so that the straight joint 20 is not parallel to the scraping plate, and the scraping plate is not in direct contact with the straight joint 20 in the moving process, but is gradually contacted with different positions of the straight joint 20, so that the resistance to the scraping plate is reduced at the position of the straight joint 20, the vertical vibration of the scraping plate is reduced, namely the impact of the scraping plate to the straight joint 20 is weakened, and the abrasion of a middle groove is reduced.
As shown in fig. 2, the angle between the direct slit 20 and the width direction of the middle plate structure 10 is 2 ° to 5 °, for example 3 °. If the included angle between the straight joint 20 and the width direction of the middle plate structure 10 is too small, the non-parallelism between the straight joint 20 and the scraping plate is not obvious enough, and the scraping plate can still be in direct contact with the straight joint 20 in the moving process, so that the impact of the scraping plate on the straight joint 20 is not weakened. If the angle between the straight joint 20 and the widthwise direction of the midplane structure 10 is too large, it can result in the splice plate 12 being too long, affecting machining and installation. Further, the length of the bridging plate 12 increases, and the depth of the bridging groove 13 in the direction of blade movement increases, which results in a decrease in the strength of the middle plate body 11. Therefore, the angle between the direct slit 20 and the widthwise direction of the middle plate structure 10 is most suitably in the range of 2 ° to 5 °.
As shown in fig. 2, in the width direction along the middle plate structure 10, both ends of the lap plate 12 have a large arc surface 121 and a small arc surface 122, respectively, and the arc radius of the large arc surface 121 is larger than that of the small arc surface 122; in the width direction along the middle plate structure 10, both ends of the overlapping groove 13 have arc surfaces that match the large arc surface 121 and the small arc surface 122, respectively.
The radius of the large arc surface 121 is larger than that of the small arc surface 121, so that the widths of the two ends of the lapping plate 12 are different, and an included angle is formed between one side of the lapping plate 12 far away from the middle plate main body 11 and the width direction of the middle plate structure 10. Because the side of the splice plate 12 remote from the middle plate body 11 is angled with respect to the width of the middle plate structure 10, the direct slot 20 between the splice plate 12 and the splice groove 13 is also angled with respect to the width of the middle plate structure 10.
And, because the middle part groove still receives the thrust effect of hydraulic support, there is about 1 swing angle between two adjacent middle part grooves, when hydraulic support promotes forward, the centre of a circle of little cambered surface 122 is used as the centre of a circle swing in middle plate structure 10 overlap joint position, does not have stress concentration phenomenon, and the atress is even, non-deformable.
Wherein, the arc radius of the large arc surface 121 is 40mm to 50mm, and the arc radius of the small arc surface 122 is 20mm to 25mm. So configured, the included angle formed between the side of the strap 12 away from the midplane body 11 and the width direction of the midplane structure 10 is within the angular range of the included angle between the direct slit 20 and the width direction of the midplane structure 10. And, the large arc surface 121 and the small arc surface 122 within this radius range are optimal in structural strength.
Further, the middle plate structure 10 is an integral structure; or the middle plate structure 10 is a split structure, and the middle plate main body 11 and the lap plate 12 are connected by welding. In the actual production process, the middle plate structure 10 can be an integrated structure, the middle plate main body 11 and the lapping plate 12 are integrally formed, connection is not needed, and processing steps are saved. The middle plate main body 11 and the lapping plate 12 can also be connected through welding, when the lapping position of the middle plate structure 10 of the middle groove is worn seriously, the lapping plate 12 is generally worn by more than 1/2 of the original thickness, the lapping plate 12 can be directly cut off by gas, a new lapping plate 12 is welded by blanking again, and the repairing process is efficient and quick. The lap joint groove 13 is a groove structure integrally formed with the middle plate body 11.
In this embodiment, the material of the midplane structure 10 is a wear resistant steel plate. The wear-resistant steel plate has high hardness, and the strength and the service life of the middle plate structure 10 can be improved by the arrangement.
Further, the thickness of the middle plate body 11 is 30mm to 40mm. The strength of the middle plate main body 11 can be ensured by the arrangement, and damage can not be caused in the use process.
Wherein the thickness of the splice plate 12 is greater than 18mm. The thickness of the splice plate 12 is set so as to ensure the strength of the splice plate 12 and prolong the service life of the splice plate 12.
As shown in fig. 3, the middle groove further includes a rack seat 34, the rack seat 34 is fixed on the upper side of the baffle ledge 32, and the two sides of the middle plate main body 11 are welded with the shovel ledge 31 and the baffle ledge 32 respectively. The middle groove mainly plays a role in guiding the scraping plate and the scraping plate chain, and the travelling rail of the coal mining machine plays a role. The shovel ledge 31 and the baffle ledge 32 are respectively welded with the two sides of the middle plate main body 11, and the scraping plate and the materials are limited in the middle groove.
Another aspect of the present utility model provides a scraper conveyor, including a head portion, a tail portion, a driving chain, a plurality of middle grooves and a plurality of scrapers, wherein the middle grooves are the middle grooves, the plurality of middle grooves are connected between the head portion and the tail portion end to end, and the driving chain drives the plurality of scrapers to slide along the plurality of middle grooves. The scraper conveyor utilizes the scrapers fixed on the transmission chain to push the conveyed materials from each scraper to each other in a small pile along the middle grooves which are overlapped with each other so as to realize continuous feeding.
The utility model has the beneficial effects that:
1. the scheme can effectively reduce the abrasion degree of the middle groove middle plate structure lap joint part and reduce the impact force of the scraping plate when passing through the lap joint gap.
2. Compared with the traditional middle plate structure, the middle plate structure lap joint part of the scheme has low processing difficulty during processing, stress concentration and cracks cannot be generated at the edge position, and the manufacturing cost is low.
3. Compared with the traditional medium plate structure, the scheme has the advantages of simple maintenance process, high efficiency, rapidness and low maintenance cost during maintenance.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a middle part groove, includes shovel plate ledge (31), baffle ledge (32), back cover board (33) and medium plate structure (10), shovel plate ledge (31) with baffle ledge (32) set up relatively, the both sides of back cover board (33) respectively with the bottom of shovel plate ledge (31) the bottom fixed connection of baffle ledge (32), medium plate structure (10) are located the top of back cover board (33), with medium plate groove complex scraper blade is parallel to medium plate structure (10) width direction, characterized in that, medium plate structure (10) includes medium plate main part (11) and lapping plate (12), medium plate main part (11) both sides respectively shovel plate ledge (31) baffle ledge (32) fixed connection, lapping plate (12) are fixed in one end of medium plate main part (11), the upper surface of lapping plate (12) and the upper surface of medium plate main part (11), thickness (12) parallel and level with medium plate groove (13) have the overlap joint shape of medium plate (13) in the middle part groove (13) of another one of lapping plate (13), a straight seam (20) is arranged between the bridging plate (12) and the bridging groove (13), and the straight seam (20) is inclined to the width direction of the middle plate structure (10).
2. The middle trough according to claim 1, characterized in that the angle between the direct slit (20) and the width direction of the middle plate structure (10) is 2 ° to 5 °.
3. The middle groove according to claim 1, characterized in that both ends of the lapping plate (12) have a large arc surface (121) and a small arc surface (122) respectively in a width direction along the middle plate structure (10), and an arc radius of the large arc surface (121) is larger than an arc radius of the small arc surface (122); and in the width direction along the middle plate structure (10), two ends of the lap joint groove (13) are respectively provided with cambered surfaces matched with the large cambered surface (121) and the small cambered surface (122).
4. A middle tank according to claim 3, characterized in that the arc radius of the large arc surface (121) is 40-50 mm and the arc radius of the small arc surface (122) is 20-25 mm.
5. The middle trough according to claim 1, characterized in that the middle plate structure (10) is a unitary structure; or the middle plate structure (10) is a split structure, and the middle plate main body (11) and the lapping plate (12) are connected through welding.
6. The middle trough according to claim 1, characterized in that the material of the middle plate structure (10) is a wear resistant steel plate.
7. A middle trough according to claim 1, characterized in that the middle plate body (11) has a thickness of 30-40 mm.
8. The medial trough of claim 1, wherein the thickness of the strap (12) is greater than 18mm.
9. The middle tank according to claim 1, further comprising a rack seat (34), wherein the rack seat (34) is fixed on the upper side of the baffle ledge (32), and the two sides of the middle plate main body (11) are welded with the shovel ledge (31) and the baffle ledge (32) respectively.
10. A scraper conveyor, characterized in that, the scraper conveyor includes head, tail, drive chain, a plurality of middle grooves and a plurality of scraper blade, the middle groove is the middle groove of any one of claims 1 to 9, a plurality of middle groove end to end connect in between the head with the tail, the drive chain drives a plurality of the scraper blade is followed a plurality of the middle groove slides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320743099.9U CN219822631U (en) | 2023-04-06 | 2023-04-06 | Middle groove and scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320743099.9U CN219822631U (en) | 2023-04-06 | 2023-04-06 | Middle groove and scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219822631U true CN219822631U (en) | 2023-10-13 |
Family
ID=88276805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320743099.9U Active CN219822631U (en) | 2023-04-06 | 2023-04-06 | Middle groove and scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219822631U (en) |
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2023
- 2023-04-06 CN CN202320743099.9U patent/CN219822631U/en active Active
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