Wear-resistant roller of belt conveyor for coal mining

Abstract

The utility model relates to the technical field of conveying equipment for coal mining, and discloses a wear-resistant roller of a belt conveyor for coal mining, which comprises an inner cylinder component, a wear-resistant sleeve is sleeved on the outer side of the inner cylinder component, the wear-resistant sleeve comprises four sections of single sleeves, and each single sleeve comprises a forged steel layer, a stainless steel layer and a wear-resistant layer. The wear-resistant sleeve is arranged on the inner cylinder assembly in a sleeved mode, the wear-resistant sleeve is arranged on the inner cylinder assembly in a sleeved mode, anti-skid lines are arranged on the outer surface of the wear-resistant layer, fixing baffles are arranged at the two ends of the inner cylinder assembly, and the edge portions of the fixing baffles are overlapped with the end face portions of the wear-resistant sleeve. Meanwhile, the whole wear-resistant sleeve is composed of the four single sleeves, the single sleeve which is seriously worn can be replaced independently, the rest of the single sleeves are reserved for continuous use, and therefore the problem that waste is caused when the whole wear-resistant sleeve is replaced is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment used in coal mining, in particular to a wear-resistant roller of a belt conveyor used in coal mining. Background Art

[0002] Belt conveyors offer advantages such as high conveying capacity, simple structure, easy maintenance, and standardized components. They are widely used in industries such as mining, metallurgy, and coal mining to transport bulk materials or finished goods. Depending on the conveying process requirements, they can be used alone or as a combination of multiple units or combined with other conveying equipment to form horizontal or inclined conveying systems to meet the needs of various production line layouts. The roller is a key component of a belt conveyor and is generally classified as a driving roller, a driven roller, or a bend roller, depending on its function. The roller's wear resistance is a key factor affecting its performance and lifespan, and wear resistance is generally determined by the roller's surface material.

[0003] In the prior art with publication (announcement) number: CN218433356U and publication (announcement) date: 2023-02-03, a wear-resistant roller for a belt conveyor used in coal mining is proposed, comprising a roller frame, a roller main shaft, and a retaining ring. A fixing frame is fixedly installed in a circular array at equal intervals on the side of the roller main shaft corresponding to the internal position of the roller frame, and the other end of the fixing frame is fixedly connected to the inner wall of the roller frame. Reinforcement blocks are fixedly installed in the interior of the fixing frame at equal intervals. Mounting blocks are fixedly installed in a circular array at equal intervals on the side of the roller frame. A mounting groove is provided on the side of the mounting block away from the roller frame. In the present utility model, the buffer layer squeezes the buffer plate to deform and contact the deformation plate to produce deformation, which acts as a buffer. The reinforcement block and the fixing frame strengthen the stability of the interior of the roller frame. In this way, the side of the wear-resistant layer is tightly fitted to the belt, thereby increasing the friction coefficient, making it less likely to slip or run sideways during continuous operation, and enhancing the wear resistance and strength of the roller.

[0004] Although the above-mentioned existing technology enhances the wear resistance of the roller, the outer layer of the wear-resistant roller cannot be replaced well. During the operation of the coal mining belt conveyor, the outer layer is usually the most susceptible to wear. When the outer layer is severely worn, its internal structure can usually remain intact. If the entire layer is directly replaced, it will cause waste. Therefore, a new coal mining belt conveyor wear-resistant roller is proposed to optimize the above-mentioned existing technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a wear-resistant roller for a belt conveyor used in coal mining.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A wear-resistant roller for a belt conveyor used in coal mining comprises an inner cylinder assembly, the outer side of the inner cylinder assembly is provided with a wear-resistant sleeve, the wear-resistant sleeve comprises four sections of single sleeves, the single sleeves comprise a forged steel layer, a stainless steel layer and a wear-resistant layer, the outer surface of the wear-resistant layer is provided with anti-slip grooves, fixed baffles are provided at both ends of the inner cylinder assembly, the edge portion of the fixed baffle partially overlaps with the end face of the wear-resistant sleeve, a fixing bolt passes through the side circumference of the fixed baffle, and one end of the fixing bolt is inserted into the inner cylinder assembly and is threadedly connected to the inner cylinder assembly.

[0008] As a further solution of the present invention: the forged steel layer is fixedly connected to the outside of the inner cylinder assembly, the stainless steel layer is fixedly connected to the outside of the forged steel layer, the wear-resistant layer is fixedly connected to the outside of the stainless steel layer, and the wear-resistant layer is made of polyurethane.

[0009] As a further solution of the present invention: an axis head is fixedly provided on the side of the fixed baffle away from the inner cylinder assembly, a positioning block is fixedly provided on the side of the fixed baffle close to the inner cylinder assembly, and a square hole that matches the outer diameter of the positioning block is opened at the center of the end face of the inner cylinder assembly, and the positioning block is inserted into the square hole.

[0010] As a further solution of the present invention: the circumferential inner wall of the wear-resistant sleeve is provided with a convex key, the circumferential outer wall of the inner cylinder assembly is evenly provided with a key groove, the inner diameter of the key groove is adapted to the outer diameter of the convex key, the convex key is inserted into the key groove, and the convex key and the key groove are slidably connected.

[0011] As a further solution of the present invention: the inner barrel assembly includes a central shaft, an outer barrel body, ribs and reinforcing ribs.

[0012] As a further solution of the present invention: the outer barrel body is fixedly sleeved on the outside of the central axis, the rib plate is fixedly connected to the outside of the central axis in a circumferential manner, the side of the rib plate away from the central axis is fixedly connected to the inner wall of the outer barrel body, and a number of reinforcing ribs are fixedly connected between two adjacent rib plates.

[0013] The beneficial effects of the utility model are:

[0014] 1. In the utility model, the wear-resistant sleeve is arranged on the inner cylinder assembly and is assembled and limited by a fixed baffle, so that the wear-resistant sleeve can be easily disassembled and assembled for replacement due to wear. At the same time, the wear-resistant sleeve is composed of four single sleeves. The single sleeve with severe wear can be replaced separately, and the rest can be retained for continued use, thereby effectively avoiding the problem of wasteful overall replacement.

[0015] 2. The utility model installs the shaft heads at both ends of the inner cylinder assembly by installing the fixed baffle, so that the shaft heads are assembled and can be replaced separately when the shaft heads are severely worn.

[0016] 3. The fixed baffle of the utility model is fixedly installed with the inner cylinder assembly by means of fixing bolts, wherein the fixed baffle is limited by the cooperation of the positioning block and the square hole, thereby axially limiting the fixed baffle and the inner cylinder assembly, reducing the axial force on the fixing bolts, and avoiding deformation of the fixing bolts that makes them difficult to disassemble.

[0017] The utility model forms an axial limit on the outer side of the inner cylinder assembly by cooperating with the convex key and the keyway, thereby preventing the wear-resistant sleeve and the inner cylinder assembly from rotating and slipping, thereby preventing unnecessary wear on the outer surface of the inner cylinder assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a wear-resistant roller for a belt conveyor used in coal mining proposed by the utility model;

[0019] Figure 2 This is a front structural diagram of a wear-resistant roller of a belt conveyor for coal mining proposed by the utility model;

[0020] Figure 3 The utility model is a side structural schematic diagram of a wear-resistant roller of a belt conveyor used in coal mining.

[0021] In the figure: 1-inner cylinder assembly, 2-wear-resistant sleeve, 3-single sleeve, 4-forged steel layer, 5-stainless steel layer, 6-wear-resistant layer, 7-anti-slip groove, 8-fixed baffle, 9-fixing bolt, 10-axis head, 11-positioning block, 12-square hole, 13-convex key, 14-keyway, 15-center shaft, 16-outer barrel, 17-rib, 18-reinforcement rib. DETAILED DESCRIPTION

[0022] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0023] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] Reference Figure 1-3, a wear-resistant roller for a belt conveyor used in coal mines, comprising an inner cylinder assembly 1, the outer side of the inner cylinder assembly 1 is provided with a wear-resistant sleeve 2, the wear-resistant sleeve 2 comprises four sections of single sleeves 3, and the four sections of single sleeves 3 are close to each other and fit together, the single sleeve 3 comprises a forged steel layer 4, a stainless steel layer 5 and a wear-resistant layer 6, the outer surface of the wear-resistant layer 6 is provided with anti-slip grooves 7, and the anti-slip performance is improved by setting the anti-slip grooves 7 to avoid slipping. Both ends of the inner cylinder assembly 1 are provided with fixed baffles 8, the edge portion of the fixed baffle 8 partially overlaps with the end face of the wear-resistant sleeve 2, and the fixed baffle 8 blocks the stainless steel layer 5 and the forged steel layer 4, thereby forming a limit on the wear-resistant sleeve 2, and a fixing bolt 9 is passed through the side circumference of the fixed baffle 8, and one end of the fixing bolt 9 is inserted into the inner cylinder assembly 1 and is threadedly connected to the inner cylinder assembly 1, and a circular hole for the fixing bolt 9 to pass through is opened on the fixed baffle 8, and a threaded hole for the fixing bolt 9 to be threadedly connected is opened on the end face of the inner cylinder assembly 1

[0025] The wear-resistant sleeve 2 is mounted on the inner cylinder assembly 1 and is limited by the fixed baffle 8 so that the wear-resistant sleeve 2 can be easily disassembled and assembled for replacement due to wear. At the same time, the wear-resistant sleeve 2 is composed of four single sleeves 3. The single sleeves 3 that are severely worn can be replaced individually, and the rest can be retained for continued use, thereby effectively avoiding the problem of wasteful overall replacement.

[0026] As a preferred embodiment of the present utility model, the forged steel layer 4 is fixedly connected to the outside of the inner tube assembly 1, the stainless steel layer 5 is fixedly connected to the outside of the forged steel layer 4, and the wear-resistant layer 6 is fixedly connected to the outside of the stainless steel layer 5. The wear-resistant layer 6 is made of polyurethane, wherein the forged steel layer 4 is used to ensure the self-strength of the single sleeve 3, the stainless steel layer 5 is used to improve the corrosion resistance of the single sleeve 3 to avoid rust and corrosion, and the wear-resistant layer 6 is used to improve the wear resistance of the surface of the single sleeve 3 to avoid severe wear due to use.

[0027] As a preferred embodiment of the present invention, a shaft head 10 is fixedly provided on the side of the fixed baffle 8 away from the inner cylinder assembly 1. The shaft head 10 is assembled, so that the shaft head 10 can be replaced separately when the shaft head 10 is severely worn. A positioning block 11 is fixedly provided on the side of the fixed baffle 8 close to the inner cylinder assembly 1. A square hole 12 that matches the outer diameter of the positioning block 11 is opened at the center of the end face of the inner cylinder assembly 1, and the positioning block 11 is inserted into the square hole 12. The fixed baffle 8 is fixedly installed with the inner cylinder assembly 1 by a fixing bolt 9, wherein the fixed baffle 8 is inserted and limited by the cooperation of the positioning block 11 and the square hole 12, so that the fixed baffle 8 and the inner cylinder assembly 1 can be axially limited, reducing the axial force on the fixing bolt 9 and avoiding the deformation of the fixing bolt 9 that makes it difficult to disassemble.

[0028] As a preferred embodiment of the present utility model, the circumferential inner wall of the wear-resistant sleeve 2 is provided with a convex key 13, and the circumferential outer wall of the inner cylinder assembly 1 is evenly provided with a key groove 14. The inner diameter of the key groove 14 is adapted to the outer diameter of the convex key 13. The convex key 13 is inserted into the key groove 14, and the convex key 13 is slidably connected to the key groove 14.

[0029] The cooperation between the convex key 13 and the keyway 14 forms an axial limit on the outer side of the inner cylinder assembly 1, thereby preventing the wear-resistant sleeve 2 and the inner cylinder assembly 1 from rotating and slipping, causing unnecessary wear on the outer surface of the inner cylinder assembly 1.

[0030] As a preferred embodiment of the present invention, the inner barrel assembly 1 includes a central shaft 15 , an outer barrel body 16 , ribs 17 and reinforcing ribs 18 .

[0031] As a preferred embodiment of the present utility model, the outer barrel body 16 is fixedly sleeved on the outside of the central axis 15, the ribs 17 are fixedly connected to the outside of the central axis 15 in a circumferential manner, the side of the ribs 17 away from the central axis 15 is fixedly connected to the inner wall of the outer barrel body 16, and a number of reinforcing ribs 18 are fixedly connected between two adjacent ribs 17.

[0032] The ribs 17 and the reinforcement ribs 18 form auxiliary supports between the outer barrel 16 and the central shaft 15, thereby improving the structural strength of the entire inner barrel assembly 1 and preventing deformation.

[0033] The working principle of this utility model is:

[0034] During use, the single sleeve 3 is sleeved on the inner cylinder assembly 1 through the cooperation of the convex key 13 and the keyway 14 to form a wear-resistant sleeve 2. At this time, the fixed baffle 8 is matched with the inner cylinder assembly 1 through the square hole 12 and the positioning block 11, and is further locked and fixed by the fixing bolt 9. At this time, the overall wear-resistant roller can be installed through the shaft head 10.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wear-resistant roller for a belt conveyor used in coal mining, characterized in that: The invention comprises an inner cylinder assembly (1), wherein the outer side of the inner cylinder assembly (1) is provided with a wear-resistant sleeve (2), wherein the wear-resistant sleeve (2) comprises four sections of single sleeves (3), wherein the single sleeves (3) comprise a forged steel layer (4), a stainless steel layer (5) and a wear-resistant layer (6), wherein the outer surface of the wear-resistant layer (6) is provided with anti-slip grooves (7), and both ends of the inner cylinder assembly (1) are provided with fixed baffles (8), wherein the edge portion of the fixed baffle (8) overlaps with the end face portion of the wear-resistant sleeve (2), and a fixing bolt (9) is passed through the side circumference of the fixed baffle (8), and one end of the fixing bolt (9) is inserted into the inner cylinder assembly (1) and is threadedly connected to the inner cylinder assembly (1).

2. The wear-resistant roller of a belt conveyor for coal mining according to claim 1, characterized in that: The forged steel layer (4) is fixedly connected to the outside of the inner cylinder assembly (1), the stainless steel layer (5) is fixedly connected to the outside of the forged steel layer (4), and the wear-resistant layer (6) is fixedly connected to the outside of the stainless steel layer (5), and the wear-resistant layer (6) is made of polyurethane.

3. The wear-resistant roller of a belt conveyor for coal mining according to claim 1, characterized in that: A shaft head (10) is fixedly provided on the side of the fixed baffle (8) away from the inner cylinder assembly (1), and a positioning block (11) is fixedly provided on the side of the fixed baffle (8) close to the inner cylinder assembly (1). A square hole (12) matching the outer diameter of the positioning block (11) is provided at the center of the end face of the inner cylinder assembly (1), and the positioning block (11) is inserted into the square hole (12).

4. The wear-resistant roller of a belt conveyor for coal mining according to claim 1, characterized in that: The circumferential inner wall of the wear-resistant sleeve (2) is provided with a convex key (13), and the circumferential outer wall of the inner cylinder assembly (1) is evenly provided with a key groove (14). The inner diameter of the key groove (14) is adapted to the outer diameter of the convex key (13). The convex key (13) is inserted into the key groove (14), and the convex key (13) and the key groove (14) are slidably connected.

5. The wear-resistant roller of a belt conveyor for coal mining according to claim 1, characterized in that: The inner barrel assembly (1) comprises a central shaft (15), an outer barrel body (16), ribs (17) and reinforcing ribs (18).

6. The wear-resistant roller of a belt conveyor for coal mining according to claim 5, characterized in that: The outer barrel body (16) is fixedly sleeved on the outer side of the central axis (15), the ribs (17) are circumferentially fixedly connected to the outer side of the central axis (15), the side of the ribs (17) away from the central axis (15) is fixedly connected to the inner wall of the outer barrel body (16), and a plurality of reinforcing ribs (18) are fixedly connected between two adjacent ribs (17).

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