Scraper conveyor with automatic cleaning function

Abstract

The utility model discloses a scraper conveyor with an automatic cleaning function. The scraper conveyor comprises a conveying device, wherein the conveying device comprises a conveying chute and a scraper chain assembly which is movably arranged in the conveying chute and is used for conveying materials excavated by a heading machine; the driving device is in transmission connection with the scraper chain assembly and used for driving the scraper chain assembly to move relative to the conveying chute. The cleaning device is arranged on the scraper chain assembly and used for cleaning the inner wall of the conveying chute when the scraper chain assembly moves relative to the conveying chute. According to the scraper conveyor with the automatic cleaning function, mudstone attached to the side walls of the upper chain way and the lower chain way is scraped away, a conveying chute is kept clean all the time, the situation that the mudstone is dried and blocked, and the operation of a transmission chain is blocked to cause chain clamping is avoided, and the scraper conveyor is simple in structure and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper conveyors, in particular to a scraper conveyor with an automatic cleaning function. Background Art

[0002] The cantilevered roadheader is a multifunctional roadheader that integrates cutting, walking, loading, spray dust suppression, and operation. The cantilevered roadheader is composed of front and rear chutes, a drive device, a scraper chain assembly, and other structures. When the transport mechanism is working, the sprocket is driven to rotate by a power motor, and the sprocket drives the scraper chain assembly to operate, wherein the scraper drives the movement of the materials accumulated on the bottom plate of the chute. Since there is a gap between the two sides of the scraper chain assembly and the side plates of the chute, during the transportation of the materials, the materials in the gap are easily retained and accumulated in the gap between the scraper chain assembly and the side plates of the chute. The existing cantilevered roadheader cannot clean the mudstone attached to the chain path. When the mudstone meets water, it is blocked under the pressure chain plate of the scraper conveyor, and the edges are condensed into solid mud blocks, which will cause the scraper chain of the scraper conveyor to get stuck or jump.

[0003] The utility model proposes a solution to the above problems. Utility Model Content

[0004] The utility model aims to provide a scraper conveyor with an automatic cleaning function, which is provided with a scraper chain cleaning device to scrape away mudstone attached to the side walls of the upper and lower chain paths, so as to keep the transport chute clean at all times, prevent the mudstone from drying and agglomerating, and avoid blocking the operation of the transmission chain and causing the chain to get stuck.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A scraper conveyor with automatic cleaning function, comprising:

[0007] A conveying device, the conveying device comprising a transport chute and a scraper chain assembly movably mounted in the transport chute for conveying materials;

[0008] A driving device, the driving device is drivingly connected to the scraper chain assembly and is used to drive the scraper chain assembly to move relative to the transport chute;

[0009] A cleaning device is installed on the scraper chain assembly and is used to clean the inner side of the transport chute when the scraper chain assembly moves relative to the transport chute.

[0010] In one embodiment, the scraper chain assembly includes a scraper for conveying materials in a transport chute, two transmission chains connected to the driving device, the scraper is connected between the two transmission chains, a gap is formed between the transmission chain and the side wall of the transport chute, and the cleaning device includes a fixed part and a cleaning part, the cleaning part is connected to the fixed part, the fixed part is fixedly connected to the scraper chain assembly, and the cleaning part is located in the gap between the transmission chain and the side wall of the transport chute.

[0011] In one embodiment, the fixing part includes a positioning ring and a connecting part fixed on the scraper chain assembly, the connecting part is fixedly connected to the positioning ring, the two positioning rings are respectively connected to corresponding positions of the two transmission chains, the two ends of the connecting part are respectively fixedly connected to two corresponding positioning rings on the two transmission chains, and a cleaning part is respectively provided at both ends of the connecting part.

[0012] In one embodiment, the cleaning device comprises a steel wire rope, the middle portion of the steel wire rope is kept in its original state to form the connecting portion, and the ends of the steel wire rope are pried apart to form the brush-shaped cleaning portion.

[0013] In one embodiment, the cleaning portion is elastic.

[0014] In one embodiment, the transmission chain includes a plurality of connecting rings and a plurality of closed rings, a plurality of closed rings are arranged between two adjacent connecting rings, the two ends of the scraper are respectively fixedly connected to the two corresponding connecting rings of the two transmission chains, the closed ring includes a flat ring and a vertical ring, a link unit is formed by alternately connecting a plurality of the flat rings and a plurality of the vertical rings, the connecting ring is connected to the flat ring on the link unit; the positioning ring of the fixed part is fixedly connected to the flat ring of the transmission chain.

[0015] In one embodiment, each of the flat rings is connected to the cleaning device; or, only some of the flat rings are connected to the cleaning device.

[0016] In one embodiment, the cleaning portion is in contact with the transport chute.

[0017] In one embodiment, the length of the cleaning device is greater than the distance between the two transmission chains.

[0018] In one embodiment, the conveying device also includes a chain pressure plate assembly arranged on the side wall of the transport chute for preventing the scraper chain assembly from being offset. The chain pressure plate assembly includes a plurality of chain pressure plates, and the chain pressure plates are arranged on the side wall of the transport chute. One side surface of the chain pressure plate and the side wall of the transport chute form a chain path for carrying the scraper chain assembly for conveying the scraper chain assembly.

[0019] Beneficial effects of the utility model:

[0020] The scraper chain cleaning device provided by the utility model is installed on the scraper chain assembly, and is used for cleaning the inner wall of the transport chute when the scraper chain assembly moves relative to the transport chute, so as to scrape away the mudstone attached to the side walls of the upper and lower chain paths, so that the transport chute is always kept clean, and the mudstone is prevented from drying and agglomerating, blocking the operation of the transmission chain and causing the chain to be stuck. The cleaning device adopts an elastic wire rope structure, which can be bent when subjected to force, and will not be tilted and stuck in the transport chute due to uneven force on the left and right transmission chains; at the same time, the length of the wire rope is longer than the width of the transport chute, which can effectively prevent the transmission chain from jumping onto the chain pressure plate and causing chain floating and jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of a scraper chain cleaning device according to an embodiment of the utility model.

[0023] Figure 2 It is a structural schematic diagram of a scraper chain assembly of a scraper chain cleaning device according to one embodiment of the utility model.

[0024] Figure 3 This is a schematic structural diagram of a scraper chain cleaning device according to an embodiment of the utility model.

[0025] Figure 4 for Figure 3 Side view of.

[0026] Figure 5 This is a schematic diagram of an alternative structure of a scraper chain cleaning device according to an embodiment of the utility model.

[0027] In the figure: 1. transport chute; 2. driving member; 3. driving sprocket; 4. chain pressure plate assembly; 5. scraper chain assembly; 51. scraper; 52. transmission chain; 53. connecting ring; 54. closing ring; 541. flat ring; 542. vertical ring; 6. cleaning device; 61. fixing part; 611. positioning ring; 62. cleaning part. DETAILED DESCRIPTION

[0028] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0031] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0032] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0033] like Figure 1 As shown, it shows a scraper conveyor with automatic cleaning function provided in an embodiment of the utility model, comprising:

[0034] The conveying device includes a transport chute 1 and a scraper chain assembly 5 movably installed in the transport chute 1 for conveying materials excavated by a tunnel boring machine. The transport chute includes an inner side wall. Of course, the scraper chain assembly 5 can also be used to convey other materials besides materials excavated by a tunnel boring machine.

[0035] A driving device, the driving device is drivingly connected to the scraper chain assembly 5 and is used to drive the scraper chain assembly 5 to move relative to the transport chute 1;

[0036] The cleaning device 6 is installed on the scraper chain assembly 5, and is used to clean the inner side of the transport chute 1 when the scraper chain assembly 5 moves relative to the transport chute 1; the interior of the transport chute 1 here includes both the inner wall of the transport chute 1 and the area close to the inner wall of the transport chute 1.

[0037] Specifically, in this embodiment, the transport chute 1 is used to carry materials excavated by the tunnel boring machine. The scraper chain assembly 5 is arranged in the transport chute 1 and is used to move relative to the transport chute 1 under the drive of the driving device to transport the materials. The cleaning device 6 is fixedly mounted on the scraper chain assembly 5 and is used to clean the inner side of the transport chute 1.

[0038] Specifically, the transport chute 1 includes a bottom wall and two side walls that are relatively spaced apart from each other, and the two side walls are respectively connected to the upper sides of the bottom wall.

[0039] Specifically, in this embodiment, the driving device includes a driving member 2 disposed on the side of the transport chute 1 and a driving sprocket 3 connected to the driving member 2. The driving member 2 is used to transmit power to the driving sprocket 3. The driving sprocket 3 is disposed inside the transport chute 1 and starts to rotate through the transmission of the driving member 2. A card slot is disposed on the driving sprocket 3. The transmission chain 52 in the scraper chain assembly is connected to the driving sprocket 3 through the card slot. The rotation of the driving sprocket 3 causes the scraper chain assembly 5 to reciprocate relative to the transport chute 1. Specifically, in this embodiment, the driving member 2 is a hydraulic motor. Of course, the driving member 2 can also be other driving members such as a motor, which is not limited here.

[0040] Specifically, in this embodiment, the conveying device also includes a chain pressure plate assembly 4 arranged on the side wall of the transport chute 1 for preventing the scraper chain assembly 5 from being offset. The chain pressure plate assembly 4 includes a plurality of chain pressure plates, which are arranged on the side wall of the transport chute 1. One side surface of the chain pressure plate and the side wall of the transport chute 1 form a chain path for carrying the scraper chain assembly 5, which is used to convey the scraper chain assembly 5.

[0041] Specifically, in the present embodiment, the chain path is arranged inside the transport chute 1, and by driving the rotation of the sprocket wheel 3, the scraper chain assembly 5 performs a closed-loop motion on the transport chute 1 through the arrangement of the chain path.

[0042] Specifically, in the present embodiment, the scraper chain assembly 5 is disposed between two side walls of the transport chute 1 .

[0043] like Figure 2 As shown, in this embodiment, the scraper chain assembly 5 includes a scraper 51 for conveying materials in the transport chute 1, two transmission chains 52 connected to the driving device, the scraper 51 is connected between the two transmission chains 52, and a gap is formed between the transmission chain 52 and the side wall of the transport chute 1.

[0044] Specifically, in this embodiment, the transmission chain 52 includes a plurality of connecting rings 53 and a plurality of closed rings 54, and a plurality of closed rings 54 are arranged between two adjacent connecting rings 53. The two ends of the scraper 51 are respectively fixedly connected to the two corresponding connecting rings 53 of the two transmission chains 52. More specifically, the connecting ring 53 is an open-type connecting ring, and the end of the scraper 51 is inserted between the two ends of the connecting ring 53, and the two ends of the connecting ring 53 and the end of the scraper 51 are fixed together by a locking piece. The connecting ring 53 is an open-type connecting ring, which is convenient and quick when the scraper 51 needs to be replaced. The closed ring 54 includes a flat ring 541 and a vertical ring 542. A plurality of flat rings 541 and a plurality of vertical rings 542 are alternately connected to form a link unit, and the connecting ring 53 is connected to the flat ring 541 on the link unit. Specifically, the flat ring 541 and the vertical ring 542 can be made of metal.

[0045] Specifically, in this embodiment, two transmission chains 52 are respectively arranged in the chain path surrounded by the transport chute 1 and the chain pressure plate assembly 4, and the transmission chains 52 are engaged with the slots of the drive sprocket 3, and the drive transmission chains 52 drive the scraper 51 to move relative to the transport chute 1.

[0046] Specifically, a gap is formed between the transmission chain 52 and the side wall of the transport chute 1 .

[0047] like Figure 3 and Figure 4 As shown, in this embodiment, the cleaning device 6 includes a fixing portion 61 and a cleaning portion 62, the cleaning portion 62 is connected to the fixing portion 61, the fixing portion 61 is fixedly connected to the scraper chain assembly 5, and the cleaning portion 62 is located in the gap between the transmission chain 52 and the side wall of the transport chute 1.

[0048] Specifically, in the present embodiment, the fixing portion 61 includes a positioning ring 611 fixed on the scraper chain assembly 5 and a connecting portion, and the connecting portion is fixedly connected to the positioning ring 611. Specifically, the two positioning rings 611 are respectively connected to the corresponding positions of the two transmission chains 52, and the two ends of the connecting portion are respectively fixedly connected to the two corresponding positioning rings 611 on the two transmission chains 52, and a cleaning portion 62 is respectively provided at the two ends of the connecting portion. Specifically, the cleaning portion 62 can be a wire rope brush with elastic function. When the cleaning portion 62 is elastic, the cleaning portion 62 can not only ensure that it can move relative to the transport chute 1 without being stuck, but also can completely sweep the gap between the transport chute 1 and the transmission chain 52, and the cleaning effect is better.

[0049] Specifically, in this embodiment, the cleaning device 6 includes a steel wire rope, the middle steel wire rope remains in its original state to form a connecting portion, the two ends of the steel wire rope pass through two positioning rings 611 respectively, and the ends are pried apart to form a brush-like cleaning portion. The spread steel wire rope itself has a certain elasticity, and the cleaning portion contacts the inner wall of the transport chute 1, and is used to clean the inner wall of the transport chute 1. It can be understood that the positioning ring 611 can be omitted, and the connecting portion can be directly fixedly connected to the scraper chain assembly 5. Specifically, in this embodiment, the positioning ring 611 can be made by cutting a nut, or the cleaning device 6 can be bent into a curved pipe by folding round steel, or a round plate can be directly cut out and welded to the transmission chain 52.

[0050] Specifically, in the present embodiment, only one steel wire rope and a positioning ring 611 may be included. The steel wire rope is elastic and can be bent when stressed. It will not be tilted and stuck in the transport chute 1 due to uneven stress on the left and right transmission chains 52. The steel wire rope is a spiral steel wire bundle that is twisted together according to certain rules. The end of the steel wire rope is broken up to form a cleaning part 62, which is convenient, fast, time-saving and labor-saving. It is understandable that other columnar materials with elastic deformation can also be used to fasten the material of the wire brush. It can be a steel wire rope or two materials spliced ​​together. The end is a larger filamentary steel brush and the middle is an elastic cylindrical rod. It is understandable that the cleaning part 62 can also be inelastic and can also be used for cleaning.

[0051] Specifically, in this embodiment, the positioning ring 611 of the fixing portion 61 can be fixedly connected to the flat ring 541 of the transmission chain 52. It can be understood that in other embodiments, the positioning ring 611 of the fixing portion 61 can also be fixedly connected to other positions such as the vertical ring 542 of the transmission chain 52, as long as the cleaning device 6 can move with the scraper chain assembly 5.

[0052] Specifically, in this embodiment, each flat ring 541 is connected to a cleaning device 6. It can be understood that in other embodiments, the cleaning device 6 may be connected only to some of the flat rings 541.

[0053] Specifically, in the present embodiment, since there is a gap between the transmission chain 52 and the side wall of the transport chute 1, which is generally 10-15mm, if the gap is too large, rock materials may easily enter and cause obstruction; if the gap is too small, the wear of the connecting ring 53 and the side plate of the transport chute 1 may be increased, and even the chain may be stuck. Such a gap causes mudstone to adhere to the side wall of the transport chute 1, and after drying into a block, it may become blocked and cause the chain to be stuck. Now, the mudstone can be effectively scraped off through the cleaning device 6. The length of the wire rope exceeds the width of the transport chute 1 by 30-40mm, and is 15-20mm on one side. The two ends are pried apart to form a brush, which is close to the side wall of the transport chute 1 and continuously rotates to carry away the mudstone. At the same time, the wire rope is elastic and can bend and deform when the resistance is too large, and will not be stuck in the chute, thereby ensuring the smooth operation of the scraper chain assembly 5; the wire rope runs across the two transmission chains 52, which also effectively prevents the transmission chain 52 from jumping onto the pressure chain plate assembly 4, causing the chain to float and jump. The length of the cleaning device 6 is 30-40 mm wider than the width of the two transmission chains 52 , but is not limited to this length and can be lengthened or shortened according to actual conditions.

[0054] like Figure 5 Specifically, in another embodiment, the cleaning devices 6 on the two transmission chains 52 can be independent of each other and not connected together, which can also play a cleaning role.

[0055] The specific workflow of the above-mentioned scraper conveyor may include the following operations:

[0056] The material to be transported is transferred to the transport chute 1, the driving member 2 drives the driving sprocket 3 to rotate, the driving sprocket 3 drives the transmission chain 52 to move, and then drives the scraper 51 to move, and then the material in the transport chute 1 is transported along the direction of rotation of the driving sprocket 3. A chain pressing plate assembly 4 is arranged in the transport chute 1 and on the upper side wall of the transport chute 1. The chain pressing plate and the side wall of the transport chute 1 form an upper and lower chain path, and the transmission chain 52 works in the upper and lower chain paths. The cleaning device 6 moves with the movement of the transmission chain 52, thereby cleaning the mudstone attached to the side wall of the transport chute 1 to prevent the mudstone from drying and condensing when it encounters water and jamming the transmission chain 52.

[0057] The scraper conveyor provided by the utility model is connected to the cleaning part 62 of the transmission chain 52 through the fixing part 61. When working, it contacts the side wall of the transport chute 1 to scrape away the mudstone attached to the side walls of the upper and lower chain paths, so that the transport chute 1 is always kept clean, and the mudstone is prevented from drying and agglomerating, blocking the operation of the transmission chain 52 and causing the chain to get stuck. The steel wire rope is elastic and can bend when subjected to force, and will not be tilted and stuck in the transport chute 1 due to uneven force on the left and right transmission chains 52. At the same time, the length of the steel wire rope brush 7 is longer than the distance between the two transmission chains 52, which can effectively prevent the transmission chain 52 from jumping onto the chain pressure plate and causing chain floating and chain jumping.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0060] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A scraper conveyor with automatic cleaning function, characterized in that: include: A conveying device, the conveying device comprising a transport chute and a scraper chain assembly movably mounted in the transport chute for conveying materials; A driving device, the driving device is drivingly connected to the scraper chain assembly and is used to drive the scraper chain assembly to move relative to the transport chute; A cleaning device is installed on the scraper chain assembly and is used to clean the inner side of the transport chute when the scraper chain assembly moves relative to the transport chute.

2. The scraper conveyor with automatic cleaning function according to claim 1, characterized in that: The scraper chain assembly includes a scraper for conveying materials in a transport chute, two transmission chains connected to the driving device, the scraper is connected between the two transmission chains, a gap is formed between the transmission chain and the side wall of the transport chute, the cleaning device includes a fixed part and a cleaning part, the cleaning part is connected to the fixed part, the fixed part is fixedly connected to the scraper chain assembly, and the cleaning part is located in the gap between the transmission chain and the side wall of the transport chute.

3. The scraper conveyor with automatic cleaning function according to claim 2, characterized in that: The fixing part includes a positioning ring and a connecting part fixed on the scraper chain assembly, the connecting part is fixedly connected to the positioning ring, the two positioning rings are respectively connected to the corresponding positions of the two transmission chains, the two ends of the connecting part are respectively fixedly connected to the two corresponding positioning rings on the two transmission chains, and a cleaning part is respectively provided at the two ends of the connecting part.

4. The scraper conveyor with automatic cleaning function according to claim 3, characterized in that: The cleaning device comprises a steel wire rope, the middle portion of the steel wire rope is kept in its original state to form the connecting portion, and the end of the steel wire rope is pried apart to form the brush-shaped cleaning portion.

5. The scraper conveyor with automatic cleaning function according to claim 2, characterized in that: The cleaning part has elasticity.

6. The scraper conveyor with automatic cleaning function according to claim 3, characterized in that: The transmission chain includes multiple connecting rings and multiple closed rings, and multiple closed rings are arranged between two adjacent connecting rings. The two ends of the scraper are respectively fixedly connected to the two corresponding connecting rings of the two transmission chains. The closed ring includes a flat ring and a vertical ring. A link unit is formed by alternately connecting multiple flat rings and multiple vertical rings, and the connecting ring is connected to the flat ring on the link unit; the positioning ring of the fixed part is fixedly connected to the flat ring of the transmission chain.

7. The scraper conveyor with automatic cleaning function according to claim 6, characterized in that: Each of the flat rings is connected to the cleaning device; or, only some of the flat rings are connected to the cleaning device.

8. The scraper conveyor with automatic cleaning function according to claim 2, characterized in that: The cleaning portion is in contact with the transport chute.

9. The scraper conveyor with automatic cleaning function according to claim 2, characterized in that: The length of the cleaning device is greater than the distance between the two transmission chains.

10. The scraper conveyor with automatic cleaning function according to claim 1, characterized in that: The conveying device also includes a chain pressure plate assembly arranged on the side wall of the transport chute to prevent the scraper chain assembly from being offset. The chain pressure plate assembly includes a plurality of chain pressure plates, and the chain pressure plates are arranged on the side wall of the transport chute. One side surface of the chain pressure plate and the side wall of the transport chute form a chain path for carrying the scraper chain assembly for conveying the scraper chain assembly.

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