A coal mine conveyor belt idler and conveyor belt support assembly

Abstract

This utility model discloses a coal mine conveyor belt idler and belt support assembly, including an idler roller disposed below the rotating section of the conveyor belt and used to support the conveyor belt, with the belt bearing surface of the rotating section facing downwards; a protrusion is provided on the outer periphery of the idler roller; the height of the protrusion is less than the radius of the idler roller; the protrusion is located on both sides of the centerline of the conveyor belt; wherein, the centerline is the centerline in the length direction of the conveyor belt; this utility model, by providing a protrusion on the outer periphery of the idler roller, when the conveyor belt is running, the protrusion can interfere with the groove of the conveyor belt, causing the conveyor belt to vibrate up and down when passing through the idler roller, thereby causing the coal powder and mud adhering in the groove to fall off, achieving the purpose of cleaning the conveyor belt.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mine transportation equipment, and in particular relates to a coal mine belt idler and belt support assembly. Background Technology

[0002] In the process of transporting gangue in coal mines, belt conveyors are a very important piece of equipment. The belt is the core component of the belt conveyor, used to carry the gangue, and is usually made of various materials such as rubber, canvas, and steel wire rope. In daily production, due to the need to transport gangue, human-shaped grooves are usually designed on the surface of the belt to improve the belt's anti-slip ability and prevent gangue from sliding down the belt.

[0003] In addition, due to the presence of the human-shaped groove, a small amount of coal dust and mud will be mixed in during the transportation of gangue. When these coal dust and mud are wet, they will stick to the human-shaped groove of the belt, thus affecting the anti-slip ability of the belt. Workers need to use shovels, wooden poles and other long poles to knock the belt to make the coal dust and mud in the human-shaped groove fall off. Utility Model Content

[0004] The purpose of this utility model is to provide a coal mine belt idler roller and belt support assembly to clean coal powder and sludge in the human-shaped groove during belt operation.

[0005] The present invention adopts the following technical solution: a coal mine belt idler, including an idler disposed below the rotating section of the belt and used to support the belt, wherein the belt bearing surface of the rotating section faces downward;

[0006] The outer periphery of the idler roller is provided with protrusions;

[0007] The height of the protrusion is less than the radius of the idler roller;

[0008] The protrusions are located on both sides of the centerline of the belt; where the centerline is the centerline along the length of the belt.

[0009] Furthermore, the protruding part is a raised portion;

[0010] When the number of protrusions is even, the protrusions on both sides of the center line are symmetrically arranged.

[0011] Furthermore, when the number of protrusions is odd, the protrusions on both sides of the center line are symmetrically arranged, and the protrusion in the middle position is symmetrical with respect to the center line.

[0012] Furthermore, the height of each protrusion along the radial direction of the idler roller is equal.

[0013] Furthermore, the protrusion is a protruding ring disposed on the outer periphery of the idler roller, and the number of protruding rings is at least two, and they are symmetrically arranged with respect to the center line.

[0014] Furthermore, all the raised rings have the same height along the radial direction of the idler roller.

[0015] Furthermore, the protrusion is a protruding spiral rod spirally arranged along the outer circumference of the idler roller. The protruding spiral rod extends from one end of the idler roller to the other end, and the height of each part of the protruding spiral rod along the radial direction of the idler roller is equal.

[0016] Another technical solution of the present invention: a coal mine belt support assembly, comprising a coal mine belt idler roller according to any one of the above claims.

[0017] Furthermore, this includes several idlers positioned below the rotary section.

[0018] The beneficial effects of this utility model are: by setting protrusions on the outer periphery of the idler roller, when the belt is running, the protrusions can interfere with the grooves of the belt, causing the belt to vibrate up and down when it passes through the idler roller, thereby causing the coal powder and mud stuck in the grooves to fall off, thus achieving the purpose of cleaning the belt. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a coal mine belt idler according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a coal mine belt idler according to another embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a coal mine belt idler according to another embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of a coal mine belt idler according to another embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the working state of an embodiment of the present utility model;

[0024] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0025] Among them: 10. Idler roller; 20. Protrusion; 30. Protrusion ring; 40. Protrusion spiral rod; 50. Belt; 51. Groove. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] This utility model discloses a coal mine belt idler, including an idler 10 disposed below the rotating section of the belt 50 and used to support the belt 50, with the belt bearing surface of the rotating section facing downward; a protrusion is provided on the outer periphery of the idler 10; the height of the protrusion is less than the radius of the idler 10; the protrusion is located on both sides of the centerline of the belt 50; wherein, the centerline is the centerline in the length direction of the belt 50.

[0028] This invention features a protrusion on the outer periphery of the idler roller. When the belt is running, the protrusion interferes with the groove of the belt, causing the belt to vibrate up and down as it passes over the idler roller. This causes the coal dust and mud adhering to the groove to fall off, thus achieving the purpose of cleaning the belt.

[0029] In this embodiment, the rotating section refers to the stage after the gangue transported on the belt 50 is unloaded, and the belt moves in the opposite direction after passing through the rollers. In the rotating section, the bearing surface of the belt faces downward, and the groove 51 of the belt 5 also faces downward. Therefore, the belt can be vibrated by the cooperation between the idler roller 10 and the groove 51.

[0030] The height of the protrusion is less than the radius of the idler roller 10, which ensures that the belt 50 does not vibrate too violently at the idler roller 10, thus avoiding other safety accidents. In addition, by positioning the protrusion on both sides of the centerline of the belt 50, the belt can be subjected to force on both sides simultaneously, preventing the belt 50 from deviating when passing the idler roller 10.

[0031] In one embodiment, the protrusion is a protrusion 20, such as a hemispherical shape, an arch shape, etc. Specifically, such as... Figure 1 As shown, when the number of protrusions 20 is even, the protrusions on both sides of the center line are symmetrically arranged. This ensures that the force on both sides of the belt is the same, preventing belt deviation. In this embodiment, the protrusions 20 are only in the same direction on the circumference of the idler roller 10, also for the purpose of uniform force distribution.

[0032] In another embodiment, such as Figure 2 As shown, when the number of protrusions 20 is odd, the protrusions on both sides of the center line are symmetrically arranged, and the protrusion 20 in the middle position is symmetrical with respect to the center line. This arrangement is also to ensure that the force on both sides of the belt center line is consistent, and to prevent the belt from running off-center.

[0033] In this field, the length of belt 50 is usually several hundred meters and its weight is particularly large. If belt misalignment occurs, it is very difficult to adjust belt 50 and it will affect the continuity of production. Therefore, special attention needs to be paid to the problem of belt misalignment.

[0034] In this embodiment, the height of each protrusion 20 along the radial direction of the idler roller 10 is equal. Equal height means that the belt is subjected to equal force. Therefore, the force on the belt can be controlled by the height to ensure the belt is subjected to balanced force.

[0035] like Figure 5 The diagram shows the usage state of the idler roller in this embodiment. The idler roller 10 has three sets of protrusions 20, with three protrusions 20 in each set. The three protrusions 20 are evenly arranged along the left, center, and right sides of the idler roller. Figure 6 As shown, when the groove 51 on the belt 50 passes over the protrusion 20, the belt will not run on a single plane due to the presence of the protrusion 20 and the groove 51. For example, when a portion of the protrusion 20 extends into the groove 51, that part of the belt will tilt downwards slightly. Then, as the idler roller rotates and the belt moves, the belt will rise slightly, causing it to undulate up and down, creating a vibration. Under this vibration, the coal dust and sludge in the groove 51 will fall directly down. Moreover, since the protrusion 20 and the groove 51 are symmetrically arranged with respect to the centerline of the belt 50, the undulation amplitude on both sides of the belt is the same, so the belt will not deviate from its side.

[0036] In another embodiment, such as Figure 3 As shown, the protrusions are raised rings 30 disposed on the outer periphery of the idler roller 10. There are at least two raised rings 30, symmetrically arranged with respect to the centerline. The raised rings 30 can be made of steel plates welded to the surface of the idler roller 10, or they can be made of reinforcing bars welded to the surface of the idler roller; their cross-sectional shape is not required. Their motion principle is the same as in the previous embodiment and will not be repeated here. It should be noted that all the raised rings 30 have the same radial height along the idler roller 10.

[0037] In another embodiment, such as Figure 4 As shown, the protrusion is a spiral rod 40 spirally arranged along the outer circumference of the idler roller 10. The spiral rod 40 extends from one end of the idler roller 10 to the other end, and the height of each part of the spiral rod 40 along the radial direction of the idler roller 10 is equal. The working principle of this embodiment is the same as that of the previous embodiment, and will not be repeated here.

[0038] This utility model also discloses a coal mine conveyor belt support assembly, including the aforementioned coal mine conveyor belt idler. The support assembly includes a plurality of idler rollers 10 disposed below the rotating section. Among the plurality of idler rollers 10, the idler rollers of the previous embodiment can be selectively installed; the aforementioned idler rollers can be installed only at locations where belt cleaning is required (e.g., near the head of the conveyor belt), while commercially available, unmodified idler rollers can be installed at other locations.

Claims

1. A coal mine belt idler, characterized in that, Includes an idler roller (10) disposed below the rotating section of the belt (50) and used to support the belt (50), wherein the belt bearing surface of the rotating section faces downward; The outer periphery of the idler roller (10) is provided with protrusions; The height of the protrusion is less than the radius of the idler roller (10); The protrusions are located on both sides of the centerline of the belt (50); wherein the centerline is the centerline along the length of the belt (50).

2. A coal mine belt idler as claimed in claim 1 wherein, The protrusion is a protrusion (20); When the number of protrusions (20) is even, the protrusions on both sides of the center line are symmetrically arranged.

3. A coal mine belt idler as claimed in claim 2 wherein, When the number of protrusions (20) is odd, the protrusions on both sides of the center line are symmetrically arranged, and the protrusions (20) in the middle position are symmetrical with respect to the center line.

4. A coal mine belt idler as claimed in claim 2 or 3 wherein, Each of the protrusions (20) has the same height along the radial direction of the idler roller (10).

5. A coal mine belt idler as claimed in claim 1 wherein, The protrusion is a protruding ring (30) disposed on the outer periphery of the idler roller (10), and the number of the protruding rings (30) is at least two, and they are symmetrically arranged with respect to the center line.

6. A coal mine belt idler as claimed in claim 5 wherein, All of the raised rings (30) have the same height along the radial direction of the idler roller (10).

7. A coal mine belt idler as claimed in claim 1 wherein, The protrusion is a protruding spiral rod (40) spirally arranged along the outer periphery of the idler roller (10). The protruding spiral rod (40) extends from one end of the idler roller (10) to the other end, and the height of each part of the protruding spiral rod (40) along the radial direction of the idler roller (10) is equal.

8. A coal mine belt support assembly, characterised in that, Includes a coal mine belt idler as described in any one of claims 1-7.

9. A coal mine belt support assembly as claimed in claim 8, characterised in that, Includes several idlers (10) disposed below the rotary section.

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