Middle trough and scraper conveyor

Abstract

The utility model relates to the technical field of material conveying, in particular to a middle trough and a scraper conveyor. A middle trough comprises a middle plate, first connecting structures are arranged on the two side edges of the middle plate in the material conveying direction; the at least two ledges are arranged on the two side edges of the same plate face of the middle plate correspondingly so as to form a material conveying area with the middle plate, and second connecting structures are arranged at the positions, corresponding to the first connecting structures, of the ledges; and the connecting piece is suitable for connecting the first connecting structure and the second connecting structure, so that the middle plate and the ledge are detachably connected. Compared with a traditional middle trough integrally formed by extruding ultra-high molecular weight polyethylene through a screw extruder, the middle trough provided by the utility model adopts a split type arrangement, the middle plate and the trough ledges which are most easily worn are detachably connected through the connecting pieces, and when maintenance is needed, the middle trough is more convenient to detach, and the service life of the middle trough is prolonged. The maintenance efficiency and the working efficiency of scraper conveyor equipment are greatly improved, and the production and maintenance time is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a middle trough and a scraper conveyor. Background Art

[0002] The middle trough is a key component of the scraper conveyor, including a middle plate, a bottom plate and a trough side; during the operation of the scraper conveyor, each component of the middle trough plays an important role. The middle plate mainly undertakes the tasks of transporting coal and gangue, and needs to bear the gravity of coal, gangue and the scraper chain; the trough side is a fixing device for the middle plate, the bottom plate, etc., and the trough side directly contacts the roadway bottom plate to play an overall supporting role.

[0003] Ultra-high molecular weight polyethylene is a thermoplastic engineering plastic with excellent comprehensive properties, and its advantages mainly include: strong wear resistance, low friction coefficient, high impact resistance and other advantages. In recent years, middle troughs made of ultra-high molecular weight polyethylene as the main material have appeared on the market.

[0004] However, the middle trough of the existing scraper conveyor is generally integrally formed by extruding ultra-high molecular weight polyethylene through a screw extruder. In this way, during the use process, the middle plate of the middle trough is most likely to be worn. When the middle plate of the middle trough is worn to a certain extent, it will cause the entire middle trough to be scrapped, so the entire middle trough needs to be replaced, resulting in a great cost. If it is damaged underground and there is no way to make timely repairs, only the production can be stopped to replace the new middle trough, which has a high cost, a long production stop time and a high economic loss. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the middle trough of the existing scraper conveyor is integrally formed by extruding ultra-high molecular weight polyethylene through a screw extruder, and the middle plate is easy to be damaged and inconvenient to replace during work, so as to provide a split middle trough and a scraper conveyor.

[0006] To solve the above technical problem, the utility model provides a middle trough, including:

[0007] A middle plate, on both sides of which along the material conveying direction are provided with first connection structures;

[0008] At least two trough sides, at least two of which are respectively arranged on two side edges of the same plate surface of the middle plate to form a material conveying area with the middle plate, and second connection structures are provided at positions of the trough sides corresponding to the first connection structures;

[0009] A connecting piece, which is suitable for connecting the first connection structure and the second connection structure so that the middle plate and the trough side are detachably connected.

[0010] Optionally, the first connection structure is a first connection hole arranged at intervals along the material conveying direction on the side edge of the middle plate, the second connection structure is a second connection hole arranged at intervals along the material conveying direction on the trough side, and the connecting piece is a bolt adapted to penetrate the first connection hole and the second connection hole and a nut for fastening the bolt.

[0011] Optionally, the trough side includes a connecting part and a working part which are connected, the connecting part is in contact with the middle plate, the first connection hole is arranged on the connecting part, and the working part has an opening facing the center of the middle plate.

[0012] Optionally, it further includes:

[0013] A baffle fixing piece, one end away from the trough side is provided with a clamping groove, and one side close to the trough side is provided with a third connection hole. The baffle fixing piece is detachably connected to the connecting part through the third connection hole and a fastener;

[0014] A baffle, which is perpendicular to the middle plate, and one end face along the direction perpendicular to the material conveying direction is clamped in the clamping groove, and the other end face abuts against the working part.

[0015] Optionally, the abutting surface between the working part and the baffle is higher than the abutting surface between the baffle fixing piece and the connecting part, so as to form a stepped wall between the working part and the connecting part.

[0016] Optionally, a plurality of baffle fixing pieces are arranged at intervals along the material conveying direction.

[0017] Optionally, the baffle is a ultra-high molecular weight polyethylene baffle, and the baffle fixing piece is a ultra-high molecular weight polyethylene baffle fixing piece.

[0018] Optionally, the middle plate is a ultra-high molecular weight polyethylene middle plate, and the trough side is a ultra-high molecular weight polyethylene trough side.

[0019] Optionally, there are four trough sides, which are respectively arranged on two plate surfaces of the middle plate along the material conveying direction and are arranged in pairs.

[0020] A scraper conveyor is also provided, which includes the middle trough as described above.

[0021] The technical solution of the present utility model has the following advantages:

[0022] 1. The middle trough provided by the utility model includes: a middle plate, with first connection structures provided on both sides along the material conveying direction; at least two trough sides, which are respectively arranged on two sides of the same plate surface of the middle plate to form a material conveying area with the middle plate, and second connection structures are provided at positions corresponding to the first connection structures on the trough sides; a connecting piece, which is suitable for connecting the first connection structure and the second connection structure to detachably connect the middle plate and the trough sides.

[0023] Compared with the traditional middle trough made by extruding ultra-high molecular weight polyethylene integrally by a screw extruder, the middle trough of this structure is arranged in a split type. The most easily worn middle plate and trough sides are detachably connected by connecting pieces. When maintenance is required, the disassembly is more convenient, greatly improving the maintenance efficiency and working efficiency of the scraper conveyor equipment and significantly shortening the production and maintenance time. Moreover, when large pieces of coal and gangue are stuck between the middle troughs, the stuck problem can also be solved by disassembly. By using a split type detachable connection for the middle plate and trough sides, when designing and producing the middle trough, the middle plate can be made by a molding process, retaining its original mechanical properties and enhancing the use strength and wear resistance of the middle plate.

[0024] 2. In the middle trough provided by the utility model, the first connection structure is first connection holes arranged at intervals along the material conveying direction on the side of the middle plate, the second connection structure is second connection holes arranged at intervals along the material conveying direction on the trough sides, and the connecting piece is a bolt suitable for passing through the first connection hole and the second connection hole and a nut for fastening the bolt. Connecting with bolts and nuts has the advantages of simple operation and stable connection. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of the middle trough in the embodiment of the present utility model;

[0027] Explanation of the reference numerals:

[0028] 1. Middle plate; 2. Trough side; 3. Connecting piece; 4. Baffle fixing piece; 5. Baffle. Detailed Embodiments

[0029] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] Embodiment 1

[0034] Referring to Figure 1 as shown, a middle trough provided in this embodiment includes:

[0035] A middle plate 1, and first connection structures are provided on both sides of the middle plate 1 along the material conveying direction;

[0036] At least two trough sides 2 are respectively arranged on two sides of the same plate surface of the middle plate 1 to form a material conveying area with the middle plate 1, and second connection structures are provided at positions of the trough sides 2 corresponding to the first connection structures;

[0037] A connecting member 3 is adapted to connect the first connection structure and the second connection structure so that the middle plate 1 and the trough side 2 are detachably connected.

[0038] The middle trough provided in this embodiment, compared with the traditional middle trough made of ultra-high molecular weight polyethylene extruded integrally by a screw extruder, adopts a split design. The middle plate 1 and the trough side 2 that are most prone to wear are detachably connected by a connecting piece 3. When maintenance is required, disassembly is more convenient, greatly improving the maintenance efficiency and working efficiency of the scraper conveyor equipment, and greatly shortening the production and maintenance time. Moreover, when large pieces of coal and gangue are stuck between the middle troughs, the stuck problem can also be solved by disassembly. By adopting a split and detachable connection for the middle plate 1 and the trough side 2, when designing and producing the middle trough, the middle plate 1 can be made by a molding process, retaining its original mechanical properties, and enhancing the service strength and wear resistance of the middle plate 1.

[0039] It should be noted that in the production and manufacturing of traditional steel middle troughs, the trough side 2 and the middle plate 1 are also separately produced and then fixedly connected by a welding process. However, due to the large self-weight of steel components, if only a detachable connection is used to connect the steel trough side 2 and the middle plate 1, misalignment is likely to occur at the connection between the trough side 2 and the middle plate 1 during production and transportation, resulting in the separation of the trough side 2 and the middle plate 1, making the transportation work unable to be carried out normally and affecting production. The disadvantages of the traditional middle trough made by welding the steel trough side 2 and the middle plate 1 are short service life, high manufacturing cost, heavy weight, difficult handling, high accident rate, low efficiency, large power consumption, and long installation and disassembly time, increasing the labor intensity of underground coal mine workers and often causing injury accidents.

[0040] It should be noted that in this embodiment, due to the split design, the middle plate 1 and the trough side 2 are produced separately during production. The middle plate 1 does not have a special shape and structure and is only an ordinary flat plate structure. In actual production, a molding process can be used for production. Compared with the extrusion molding process, the molding process can increase the structural density of the middle plate 1, thereby enhancing the anti-deformation strength and wear resistance coefficient of the middle plate 1, etc., and further enhancing its service life. Since the structures of the two side trough sides 2 do not need to bear weight and only limit the transported materials on the middle plate 1, they do not require too high structural strength, and thus the extrusion molding method can still be used for production. Of course, according to the actual production and transportation needs, other production methods can also be used for the production of the trough side 2.

[0041] Specifically, the middle plate 1 and the trough side 2 are arranged in a staggered manner along the material transportation direction.

[0042] In detail, in actual production and transportation, the middle troughs do not appear alone. The common form is that multiple middle troughs are arranged end to end along the material transportation direction. Here, in order to improve the connection stability of multiple middle troughs, one side trough side 2 along the material transportation direction is often connected to the two middle plates 1 before and after, so as to enhance the integrity of multiple middle troughs on the scraper conveyor. Of course, for the convenience of installation, a single trough side 2 and a single middle plate 1 can also be connected one by one.

[0043] Further, the first connection structure is a first connection hole arranged at intervals along the material conveying direction on the side edge of the middle plate 1, the second connection structure is a second connection hole arranged at intervals along the material conveying direction on the trough side 2, and the connecting member 3 is a bolt adapted to penetrate the first connection hole and the second connection hole and a nut for fastening the bolt.

[0044] It can be explained that using bolts and nuts for connection has the advantages of simple operation and stable connection.

[0045] In another alternative embodiment, the first connection structure can also be set as a clamping member protruding from the middle plate 1, and the second connection structure can be set as a connection groove that fits the clamping member, or the two can be designed in reverse. However, in actual use, to ensure the stability of the middle plate 1 and the trough side 2 during production and transportation, if the clamping member and the connection groove are designed to be more complex, it is not easy to disassemble when disassembly is required; and if the clamping member and the connection groove are designed to be simpler, it will affect the firmness of their connection. Here, the specific structures of the clamping member and the connection groove are not limited, and the specific structures can be designed according to different production and transportation requirements, and will not be elaborated here.

[0046] Further, the trough side 2 includes a connecting portion and a working portion connected together. The connecting portion is in contact with the middle plate 1, the first connection hole is arranged on the connecting portion, and the working portion has an opening facing the center of the middle plate 1 and is horizontally arranged in a U shape. The connecting portion and the working portion are integrally formed, and the longitudinal section forms a stepped shape.

[0047] Further, it further includes:

[0048] A baffle fixing member 4, which has a clamping groove at one end away from the trough side 2 and a third connection hole on the side close to the trough side 2. The baffle fixing member 4 is detachably connected to the connecting portion through the third connection hole and a fastener;

[0049] A baffle 5, which is perpendicular to the middle plate 1, and one end surface perpendicular to the material conveying direction is clamped in the clamping groove, and the other end surface abuts against the working portion.

[0050] It should be noted that the opening of the clamping groove is arranged in a certain direction, and the baffle 5 is fixed on the trough side 2 by the clamping force exerted by the clamping groove and the working portion. The upper trough above the horizontal plane formed by the middle plate 1 and the trough side 2 is used for transportation. The baffle fixing member 4 and the baffle 5 are added to improve the transportation efficiency and prevent the material from splashing. The fastener includes a bolt and a nut. The bolt penetrates the third connection hole on the baffle fixing member 4 and abuts against the connecting portion, and is fixed by tightening the nut.

[0051] Further, the abutting surface of the working portion and the baffle 5 is higher than the abutting surface of the baffle fixing member 4 and the connecting portion, so as to form a stepped wall between the working portion and the connecting portion.

[0052] It can be explained that the step wall formed between the chute side 2 and the working part and the connecting part increases the contact area between the baffle fixing member 4 and the chute side 2, and further improves the installation stability of the baffle fixing member 4.

[0053] Furthermore, a plurality of baffle fixing members 4 are arranged at intervals along the material conveying direction.

[0054] It should be noted that in this embodiment, one baffle 5 is fixed by two baffle fixing members 4. Here, the specific number of baffle fixing members 4 is not limited and can be set to 2, 3 or more than 4. The appropriate number of baffle fixing members 4 can be set according to the length ratio of the middle trough and the baffle fixing member 4 along the material transportation direction.

[0055] Furthermore, the baffle 5 is a ultra-high molecular weight polyethylene baffle, and the baffle fixing member 4 is a ultra-high molecular weight polyethylene baffle fixing member.

[0056] Specifically, the baffle 5 can be produced by extrusion molding, or according to actual production needs, when greater strength is required, it can also be produced by molding.

[0057] Furthermore, the middle plate 1 is a ultra-high molecular weight polyethylene middle plate, and the chute side 2 is a ultra-high molecular weight polyethylene chute side.

[0058] Furthermore, there are four chute sides 2, which are respectively arranged in parallel on two plate surfaces of the middle plate 1 along the material conveying direction and are arranged in pairs.

[0059] It should be noted that the lower trough below the horizontal plane formed by the middle plate 1 and the chute side 2 is used for the return of the scraper chain.

[0060] Embodiment 2

[0061] This embodiment provides a scraper conveyor, including the middle trough provided in Embodiment 1.

[0062] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A middle trough, characterized in that Comprising: A middle plate (1) having first connection structures provided on both side edges along the material conveying direction; At least two side plates (2), with at least two of the side plates (2) respectively arranged on two side edges of the same plate surface of the middle plate (1) to form a material conveying area with the middle plate (1), and second connection structures are provided at positions of the side plates (2) corresponding to the first connection structures; A connecting member (3), the connecting member (3) being adapted to connect the first connection structure and the second connection structure so that the middle plate (1) and the side plates (2) are detachably connected.

2. The middle trough according to claim 1, characterized in that, The first connection structure is first connection holes arranged at intervals along the material conveying direction on the side edge of the middle plate (1), the second connection structure is second connection holes arranged at intervals along the material conveying direction on the side plates (2), and the connecting member (3) is a bolt adapted to penetrate the first connection hole and the second connection hole and a nut for fastening the bolt.

3. The middle trough according to claim 2, characterized in that, The side plate (2) includes a connecting portion and a working portion connected together, the connecting portion is in contact with the middle plate (1), the first connection hole is provided on the connecting portion, and the working portion has an opening facing the center of the middle plate (1).

4. The middle trough according to claim 3, characterized in that, Further comprising: A baffle fixing member (4) having a clamping groove provided at one end away from the side plate (2) and a third connection hole provided on the side close to the side plate (2), and the baffle fixing member (4) is detachably connected to the connecting portion through the third connection hole and a fastener; A baffle (5), arranged perpendicular to the middle plate (1), with one end surface perpendicular to the material conveying direction clamped in the clamping groove and the other end surface abutted against the working portion.

5. The middle trough according to claim 4, characterized in that, The abutting surface of the working portion and the baffle (5) is higher than the abutting surface of the baffle fixing member (4) and the connecting portion, so that a stepped wall is formed between the working portion and the connecting portion.

6. The middle trough according to claim 4, characterized in that, A plurality of the baffle fixing members (4) are arranged at intervals along the material conveying direction.

7. The middle trough according to claim 4, characterized in that, The baffle (5) is an ultra-high molecular weight polyethylene baffle, and the baffle fixing member (4) is an ultra-high molecular weight polyethylene baffle fixing member.

8. The middle trough according to any one of claims 1-7, characterized in that, The middle plate (1) is an ultra-high molecular weight polyethylene middle plate, and the side plates (2) are ultra-high molecular weight polyethylene side plates.

9. The middle trough according to any one of claims 1-7, characterized in that, There are four side plates (2), which are respectively arranged on two plate surfaces of the middle plate (1) along the material conveying direction and are arranged in pairs correspondingly.

10. A scraper conveyor, characterized in that, Including the middle trough according to any one of claims 1-9.

Images