A belt conveyor tensioning device for coal mine

Abstract

The utility model relates to tensioner technical field, the utility model provides a coal mine is with belt conveyor tensioner, including front track, belt storage bin, back column winch, tension trolley, front push subassembly, belt laying subassembly and fixed component, two front tracks are fixedly installed in the side of conveyer, and the belt storage bin is installed at the bottom end of conveyer, and the back column winch is installed at the bottom end of conveyer, and the tension trolley is slidably installed on two front tracks, and the front push subassembly is arranged in the side of conveyer, and the belt laying subassembly is arranged on the front track, and the fixed component is arranged on the front track. The utility model provides a coal mine is with belt conveyor tensioner, and through the help of front track, belt storage bin, back column winch, tension trolley, front push subassembly, belt laying subassembly and fixed component, the technical problem that the length of the belt of the existing conveyer is fixed, is difficult to be tensioned and relaxed to adjust the length of the belt is solved.

Description

Technical Field

[0001] This utility model relates to the field of tensioning device technology, specifically to a tensioning device for a belt conveyor in a coal mine. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas. They are generally divided into underground coal mines and open-pit coal mines, with underground coal mines being the more common type. Since the coal seams in underground coal mines are far from the surface, workers dig tunnels underground to extract the coal. After the coal is extracted in the tunnels, it is transported to the rear using conveyor belts.

[0003] The belt length of existing conveyors is relatively fixed. After it has been fully extended, if it is necessary to mine coal in front, it is difficult to extend the belt further. As a result, it is difficult to transport coal in front conveniently, and it is also difficult to tension or loosen the belt on the conveyor, thus stretching the belt length and causing low efficiency in coal mining and transportation. Utility Model Content

[0004] To overcome the above-mentioned defects, the present invention provides a tensioning device for a coal mine belt conveyor, which solves the technical problem in the prior art that the belt length of existing conveyors is fixed, making it difficult to tension and relax to adjust the belt length.

[0005] According to one aspect, at least one embodiment of the present invention provides a tensioning device for a coal mine belt conveyor, installed on a conveyor, comprising a forward track, a belt storage bin, a return winch, a tensioning trolley, a forward pushing assembly, a belt laying assembly, and a fixing assembly. Two forward tracks are provided, both fixedly installed on the side of the conveyor. The belt storage bin is installed at the bottom end of the conveyor. The return winch is installed at the bottom end of the conveyor. The tensioning trolley is slidably installed on the two forward tracks. The return winch and the tensioning trolley are connected by a steel wire rope, which passes through the belt storage bin. The forward pushing assembly is located on the side of the conveyor and is used to push the tensioning trolley, thereby pulling the conveyor belt out of the belt storage bin. The belt laying assembly is located on the forward track and is used to lay the conveyor belt after it has been removed. The fixing assembly is located on the forward track and is used to fix the belt laying assembly.

[0006] Furthermore, the forward push assembly includes cylinders and forward push frames. There are two cylinders, both of which are mounted on the side of the conveyor. There are also two forward push frames, each fixedly connected to the output end of one of the two cylinders, and the side of the forward push frame is fixedly connected to the side of the tensioning trolley.

[0007] Furthermore, the tape laying assembly includes a moving frame and a laying roller. Two moving frames are provided, and the two moving frames are slidably mounted on the sides of the two forward tracks respectively. The laying roller is rotatably mounted between the two moving frames.

[0008] Furthermore, the fixing component includes a blocking plate, a fixing plate, a fixing rod, and a limiting component. The blocking plate is fixedly installed on the side of both forward tracks, and the fixing plate is fixedly installed on the side of both movable frames. The top of the fixing plate and the blocking plate are respectively provided with a fixing hole and a fixing groove, and the fixing rod is detachably installed in the fixing hole and the fixing groove. The limiting component is disposed on the forward track.

[0009] Furthermore, the limiting component includes a top plate and a limiting frame. The top plate is fixedly installed between the two forward tracks. Two limiting grooves are formed at the top of the top plate, and the limiting frame, the limiting grooves, and the fixing holes of the fixing plate are compatible.

[0010] Furthermore, the storage bin, the tensioning pulley, and the return winch are located at the same horizontal position.

[0011] Furthermore, the side of the movable frame is provided with a slot that is compatible with the side of the front push frame.

[0012] Furthermore, when the side of the movable frame is in contact with the slot of the front push frame, the fixing hole of the fixing plate and the fixing groove of the blocking plate are located in the same vertical position.

[0013] The beneficial effects of this utility model are as follows: In this invention, when conveying coal in a mine and needing to stretch the conveyor belt, the wire rope is first loosened by a return winch. Then, the tensioning pulley is moved forward on the forward track by the forward pushing component, thereby pulling out the conveyor belt from the storage bin. Simultaneously, the belt laying component is pushed forward on the forward track to the outermost end of the track. Finally, it is fixed with a fixing component. Then, the workers install the pulled-out conveyor belt on the belt laying component and move it to a horizontal position with the conveyor belt of the conveyor. At this point, by splicing the old and new conveyor belts, the conveying distance can be extended. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the structure of the forward track, tensioning trolley, tape laying assembly, and forward pushing assembly of this utility model. Figure 3 This is a schematic diagram of the structure of the mobile frame, the forward track, and the fixed components of this utility model. Figure 4 This utility model Figure 3 A magnified view of a portion of point A in the middle; Figure 5 This is a schematic diagram of the structure of the conveyor, belt storage bin, return winch, and tensioning pulley of this utility model.

[0016] In the diagram: 1. Conveyor; 2. Forward track; 3. Belt storage bin; 4. Return winch; 5. Tensioning pulley; 6. Cylinder; 7. Front pusher frame; 8. Moving frame; 9. Laying roller; 10. Baffle plate; 11. Fixed plate; 12. Fixed rod; 13. Top plate; 14. Limiting frame. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0018] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-5 As shown, this invention illustrates a tensioning device for a coal mine belt conveyor in one embodiment. Installed on a conveyor 1, it includes a forward track 2, a belt storage bin 3, a return winch 4, a tensioning trolley 5, a forward pushing assembly, a belt laying assembly, and a fixing assembly. Two forward tracks 2 are provided, both fixedly installed on the side of the conveyor 1. The belt storage bin 3 is installed at the bottom of the conveyor 1. The return winch 4 is installed at the bottom of the conveyor 1. The tensioning trolley 5 is slidably installed on the two forward tracks 2. The return winch 4 and the tensioning trolley 5 are connected by a steel wire rope, which passes through the belt storage bin 3. The forward pushing assembly is located on the side of the conveyor 1 and is used to push the tensioning trolley 5, thereby pulling the conveyor belt out of the belt storage bin 3. The belt laying assembly is located on the forward track 2 and is used to lay the conveyor belt after it has been removed. The fixing assembly is located on the forward track 2 and is used to fix the belt laying assembly.

[0024] like Figure 2 , Figure 3 and Figure 4As shown, when transporting coal in the roadway, the conveyor 1 is first placed into the roadway. At this time, the laying assembly can be fixed to the forward track 2 by the fixing assembly. The laying assembly includes a moving frame 8 and a laying roller 9. There are two moving frames 8, which are slidably installed on the sides of the two forward tracks 2 respectively. The laying roller 9 is rotatably installed between the two moving frames 8. The fixing assembly includes a blocking plate 10, a fixing plate 11, a fixing rod 12 and a limiting assembly. The blocking plate 10 is fixedly installed on the sides of the two forward tracks 2, and the fixing plate 11 is fixedly installed on the sides of the two moving frames 8. The top of the fixing plate 11 and the blocking plate 10 are respectively provided with fixing holes and fixing grooves, and the fixing rod 12 is detachably installed in the fixing holes and fixing grooves. The limiting assembly is set on the forward track 2. The limiting assembly includes a top plate 13 and a limiting frame 14. The top plate 13 is fixedly installed between the two forward tracks 2. The top of the top plate 13 is provided with two limiting grooves, and the limiting frame 14 and the limiting grooves and the fixing holes of the fixing plate 11 are compatible.

[0025] Specifically, because the side of the movable frame 8 is provided with a slot that matches the side of the front push frame 7, and when the side of the movable frame 8 is in contact with the slot of the front push frame 7, the fixing hole of the fixing plate 11 and the fixing groove of the blocking plate 10 are located in the same vertical position, the movable frame 8 is slid to fit its side into the slot of the front push frame 7, and then the fixing rod 12 is inserted into the fixing hole of the fixing plate 11 and the fixing groove of the blocking plate 10, thereby fixing the movable frame 8 on the forward track 2, which makes it convenient for the workers to place the conveyor 1 into the roadway, and after placement, the mined coal is transported.

[0026] like Figure 2 As shown, if the conveying distance needs to be extended, the tension trolley 5 can be moved forward by the front push assembly, thereby pulling the conveyor belt out of the storage bin 3. The front push assembly includes cylinders 6 and front push frames 7. There are two cylinders 6, both of which are installed on the side of the conveyor 1. There are also two front push frames 7, which are fixedly connected to the output ends of the two cylinders 6 respectively, and the side of the front push frame 7 is fixedly connected to the side of the tension trolley 5. Specifically, starting cylinder 6... The output end of cylinder 6 drives the two front pushers 7 to move forward, and the two front pushers 7 in turn drive the tensioning trolley 5 to move forward on the forward track 2. At this time, the fixing rod 12 is pulled out, and the front pushers 7 can synchronously push the moving frame 8 and the laying roller 9 to move forward. When the moving frame 8 moves forward to the top plate 13, it stops moving forward. At this time, the moving frame 8 moves to the sidemost end of the forward track 2. Then the limiting frame 14 is inserted into the limiting groove of the top plate 13 and the fixing hole of the fixing plate 11 to fix the moving frame 8.

[0027] like Figure 5As shown, since the storage bin 3, tension trolley 5, and return winch 4 are located at the same horizontal position, it should be noted that the storage bin 3 is fixedly equipped with a fixed roller assembly and a moving roller assembly. The conveyor belt is laid out in a back-and-forth folding state within the storage bin 3 through the fixed roller assembly, generally in four or six layers. After the conveyor belt enters from the entrance of the storage bin 3, it first passes around the first roller of the fixed roller assembly, then turns and passes around the roller of the moving roller assembly, and so on, finally laying out in a Z-shape within the storage bin 3. Then, one end of the conveyor belt is alternately wound and connected with the moving roller inside the tension trolley 5. Therefore, when the tension trolley 5 moves forward, it can pull the conveyor belt out.

[0028] Furthermore, the return winch 4 and the tensioning trolley 5 are linked by a steel wire rope and pulley block. The steel wire rope is wound to form a stable tension transmission path, and with the help of the redirecting pulley, the tensioning trolley 5 can move smoothly, ultimately providing adjustable tension to the conveyor belt. Since the tension of the conveyor belt is determined by its effective length, the shorter the length, the greater the tension. The tension of the steel wire rope is related to the position of the tensioning trolley 5, which in turn can change the effective length of the conveyor belt. The return winch 4 is equipped with a drum. When the drum rotates forward, it winds up the rope and tightens the steel wire rope. When it rotates in reverse, it unwinds the rope and the drum locks, thus fixing the steel wire rope. When the tensioning trolley 5 is pushed forward, the steel wire rope can be loosened. After the tensioning trolley 5 has moved completely, the steel wire rope is fixed again.

[0029] After the conveyor belt is pulled out, the pulled-out end is passed around the laying roller 9. Since the conveyor 1 is equipped with a trough roller group, the conveyor belt can be laid on the roller, so that it is in a horizontal position with the conveyor belt of the conveyor 1, which can extend the conveying distance.

[0030] Working principle: When conveying coal in the mine, the operator first slides the movable frame 8 so that its side fits into the slot of the front push frame 7. Then, the fixing rod 12 is inserted into the fixing hole of the fixing plate 11 and the fixing groove of the blocking plate 10, thereby fixing the movable frame 8 on the forward track 2. This makes it convenient for the operator to place the conveyor 1 into the roadway. After placement, the mined coal is conveyed.

[0031] If the conveying distance needs to be extended, cylinder 6 is activated. The output end of cylinder 6 drives the two front pushers 7 to move forward. The two front pushers 7 then drive the tensioning trolley 5 to move forward on the forward track 2. At this time, the fixing rod 12 is pulled out, and the front pushers 7 can synchronously push the moving frame 8 and the laying roller 9 forward. When the moving frame 8 moves forward to the top plate 13, it stops moving forward. At this time, the moving frame 8 moves to the sidemost end of the forward track 2. Then, the limiting frame 14 is inserted into the limiting groove of the top plate 13 and the fixing hole of the fixing plate 11 to fix the moving frame 8.

[0032] At the same time, the conveyor belt in the storage bin 3 is pulled out, then it is bypassed by the laying roller 9 at the far end of the forward track 2, and finally the pulled-out conveyor belt is laid flat and horizontal by the idler roller group on the conveyor 1, and then extended for conveying.

[0033] It should be added that the side of the tensioning pulley 5 and the side of the front push frame 7 can be detachably installed by bolts, and the return winch 4 and the belt storage bin 3 can also be detachably installed at the bottom of the conveyor 1 by bolts or clips. Furthermore, the tensioning pulley 5 can be moved away from the slide rail of the forward track 2, and the cylinder 6 can be supplied with air by the screw air compressor configured in the tunnel.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tensioning device for a coal mine belt conveyor, installed on a conveyor (1), characterized in that, include: Two forward tracks (2) are provided, and both forward tracks (2) are fixedly installed on the side of the conveyor (1); A storage bin (3) is installed at the bottom end of the conveyor (1); A return winch (4) is installed at the bottom end of the conveyor (1); The tensioning pulley (5) is slidably mounted on the two forward rails (2). The return winch (4) is connected to the tensioning pulley (5) by a steel wire rope, and the steel wire rope passes through the storage bin (3). A push assembly, which is disposed on the side of the conveyor (1), is used to push the tension trolley (5) to pull out the conveyor belt in the storage bin (3); A belt laying assembly is disposed on the forward track (2) for laying the conveyor belt after it has been removed; A fixing component is disposed on the forward track (2) for fixing the tape laying component.

2. The tensioning device for a coal mine belt conveyor according to claim 1, characterized in that, The forward push component includes: Two cylinders (6) are provided, and both cylinders (6) are installed on the side of the conveyor (1); Two front pushers (7) are provided. The two front pushers (7) are fixedly connected to the output ends of the two cylinders (6) respectively, and the side of the front pusher (7) is detachably connected to the side of the tensioning trolley (5).

3. The tensioning device for a coal mine belt conveyor according to claim 2, characterized in that, The tape laying assembly includes: Two movable frames (8) are provided, and the two movable frames (8) are slidably installed on the sides of the two forward tracks (2); A laying roller (9) is rotatably mounted between two movable frames (8).

4. The tensioning device for a coal mine belt conveyor according to claim 3, characterized in that, The fixing component includes: The blocking plate (10) is fixedly installed on the sides of both of the forward tracks (2). Fixed plate (11) is fixedly installed on the sides of both of the two movable frames (8). The top ends of the fixing rod (12), the fixing plate (11) and the blocking plate (10) are respectively provided with fixing holes and fixing grooves, and the fixing rod (12) can be detachably installed in the fixing holes and fixing grooves; A limiting component is disposed on the forward track (2).

5. A tensioning device for a coal mine belt conveyor according to claim 4, characterized in that, The limiting component includes: Top plate (13), which is fixedly installed between the two forward tracks (2); The limiting frame (14) has two limiting grooves at the top of the top plate (13), and the limiting frame (14) is compatible with the limiting grooves and the fixing holes of the fixing plate (11).

6. A tensioning device for a coal mine belt conveyor according to claim 1, characterized in that, The storage bin (3), the tensioning pulley (5), and the return winch (4) are located at the same horizontal position.

7. A tensioning device for a coal mine belt conveyor according to claim 4, characterized in that, The side of the movable frame (8) is provided with a slot that is compatible with the side of the front push frame (7).

8. A tensioning device for a coal mine belt conveyor according to claim 7, characterized in that, When the side of the movable frame (8) is in contact with the slot of the front push frame (7), the fixing hole of the fixing plate (11) and the fixing groove of the blocking plate (10) are located in the same vertical position.

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