Segmented wear-resistant carrier roller structure for belt conveyors

Abstract

The utility model relates to a segmented type wear -resisting carrier roller structure of belt conveyor, including carrier roller group, the carrier roller group includes the multiple first roller of horizontal arrangement, the first roller is all provided with the connecting area in the end face near another first roller, the structure still includes the connecting piece, the connecting piece is worn in adjacent connecting area to realize the connection of adjacent first roller. The utility model structure inserts the orifice in the bearing seat of adjacent first roller with two ends cooperation by adopting the connecting rod as the connecting piece, links up into a stable load bearing whole with multiple independent first roller, when the wear and tear of a certain section occurs, maintenance personnel need not replace the whole carrier roller group or discard the undamaged part, only need to unload the connecting rod of corresponding first roller, can separate and replace the damaged first roller from the sequence quickly, simplifies the maintenance operation and significantly shortens the downtime, effectively reduces the spare part cost, material waste and artificial workload.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to a segmented wear-resistant idler structure for belt conveyors. Background Technology

[0002] Belt conveyors are commonly used material handling equipment in modern industry. Their core components include the conveyor belt, idlers, and drive system. In conventional configurations, to stabilize the conveyor belt and control belt misalignment, a three-idler group consisting of two inclined idlers on both sides and a horizontal idler in the middle is installed along the conveying direction. The middle idler bears the main weight and is a critical component experiencing concentrated stress and frequent wear. Traditional idlers, in an effort to reduce costs, often have reduced support for the middle idler on the support frame, resulting in an integral design for the middle idler in the three-idler group, consisting of a single roller body fixedly connected to bearing seats at both ends. While this design is structurally simple, it still presents problems in practical use: (i) Inconvenient maintenance and replacement: Partial damage to the idler roller requires complete disassembly and replacement, especially for the intermediate idler roller. In some scenarios, the intermediate idler roller is quite long, and replacing it as a whole means that the undamaged parts are also discarded, which not only increases maintenance costs and downtime, but also wastes materials and increases workload.

[0003] (ii) Insufficient wear resistance. During long-term friction with materials, wear and dents and surface roughness are likely to occur, which will increase the running resistance of the conveyor belt and even cause a chain of failures such as material conveying deviation and abnormal wear of the conveyor belt, reducing the service life of the idler roller and the running stability of the conveyor. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a segmented wear-resistant idler structure for belt conveyors to solve one or more problems in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A segmented wear-resistant idler structure for a belt conveyor includes an idler group, wherein the idler group includes a plurality of horizontally arranged first rollers, and each first roller has a connecting area on its end face near another first roller; the structure also includes a connector, which passes through adjacent connecting areas to connect adjacent first rollers.

[0006] Furthermore, the connecting area is provided with a bearing seat on the end face of the first roller, and a bearing is also connected inside the bearing seat.

[0007] Furthermore, the bearing housing surface is provided with evenly spaced openings, and the two ends of the connector are respectively fitted into the openings.

[0008] Furthermore, the first roller also includes a first shaft that passes through and engages with the bearing, the first shaft protruding from both end faces of the first roller.

[0009] Furthermore, the first roller also includes a positioning element that engages with the first shaft, and the positioning element is also positioned against the bearing.

[0010] Furthermore, the first roller also includes a roller tube, and the bearing housing is fitted onto the roller tube at both ends.

[0011] Furthermore, the first roller also includes a wear-resistant layer sleeved on the outside of the roller tube.

[0012] Furthermore, the structure also includes a fixing frame, with first support members provided on both sides of the fixing frame, and the first shaft of the first roller near the first support member is fixed to the first support member.

[0013] Furthermore, the fixed frame is provided with second support members at both ends, and the roller group also includes a second roller, which includes a second shaft, with both ends of the second shaft fixed to the first support member and the second support member, respectively.

[0014] Furthermore, a third support member is symmetrically arranged on the fixed frame.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows: This novel structure uses connecting rods as connectors, with both ends inserted into holes on the bearing seats of adjacent first rollers, connecting multiple independent first rollers into a stable load-bearing unit. When a section wears out, maintenance personnel do not need to replace the entire idler roller assembly or discard undamaged parts; they only need to remove the connecting rod of the corresponding first roller to quickly separate and replace the damaged first roller from the sequence. This simplifies maintenance operations, significantly reduces downtime, and effectively reduces spare parts costs, material waste, and labor workload. In addition, the idler roller assembly is covered with a wear-resistant layer to reduce wear and increase the service life of individual rollers, reducing replacement frequency and improving the overall economy and operational stability of the conveyor system. Attached Figure Description

[0016] Figure 1 This invention illustrates a structural schematic of a segmented wear-resistant idler roller structure for a belt conveyor according to an embodiment of the present invention. Figure I .

[0017] Figure 2 This invention illustrates a structural schematic of a segmented wear-resistant idler roller structure for a belt conveyor according to an embodiment of the present invention. Figure II .

[0018] Figure 3This invention provides a cross-sectional view of the first roller of a segmented wear-resistant idler structure for a belt conveyor according to an embodiment of the present invention.

[0019] Figure 4 This illustration shows a partial enlarged view of the connection between the first rollers of a segmented wear-resistant idler structure for a belt conveyor according to an embodiment of the present invention.

[0020] The following labels are used in the attached diagram: 1. Idler roller assembly; 11. First roller; 111. First shaft; 112. Positioning component; 113. Roller tube; 114. Wear-resistant layer; 12. Second roller; 121. Second shaft; 2. Connecting component; 3. Bearing seat; 31. Orifice; 4. Bearing; 5. Fixing frame; 51. First support component; 52. Second support component; 53. Third support component. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a segmented wear-resistant idler structure for a belt conveyor, in conjunction with the accompanying drawings and specific embodiments, provides further clarity. The advantages and features of this utility model will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Please see Figures 1 to 4 The segmented wear-resistant idler structure of the belt conveyor in this embodiment includes a fixed frame 5 and an idler group 1. The idler group 1 includes a plurality of horizontally arranged first rollers 11. In this embodiment, three first rollers 11 are provided. The idler group 1 also includes second rollers 12. The second rollers 12 are obliquely arranged on both sides of the fixed frame 5 relative to the first rollers 11. The coordinated arrangement of the first rollers 11 and the second rollers 12 forms a stable conveyor belt support structure.

[0023] Specifically, each of the first rollers 11 has a connecting area on its end face near the other first roller 11. The connecting area has a bearing seat 3 on the end face of the first roller 11, and a bearing 4 is also internally connected to the bearing seat 3. That is, the bearing seat 3 and the outer ring of the bearing 4 form an interference fit, ensuring that the bearing 4 is securely installed inside the bearing seat 3 and preventing relative displacement during the rotation of the first roller 11. The first roller 11 also includes a first shaft 111 that passes through and engages with the bearing 4, and the first shaft 111 protrudes from both end faces of the first roller 11.

[0024] The first roller 11 also includes a positioning member 112 that is engaged with the first shaft 111. The positioning member 112 also abuts against the bearing 4. Through the limiting effect of the positioning member 112, axial movement of the bearing 4 on the first shaft 111 can be effectively prevented, ensuring the stable rotation of the first roller 11. Preferably, the positioning member 112 can be an elastic retaining ring, which is snapped into an annular groove opened on the outer circumferential surface of the first shaft 111, which is convenient for installation and disassembly and has a reliable positioning effect. The first roller 11 also includes a roller tube 113. The bearing seat 3 transitionally fits into the roller tube 113 at both ends of the roller tube 113. The transitional fit achieves a tight connection between the bearing seat 3 and the roller tube 113, which not only ensures the connection strength between the two, but also facilitates the positioning and installation of the bearing seat 3 during assembly.

[0025] Furthermore, the bearing seat 3 has evenly spaced openings 31 on its surface. The structure also includes a connector 2, with both ends of the connector 2 transitionally fitted into the openings 31. By passing the connector 2 through the openings 31 of adjacent connecting areas of the bearing seat 3, adjacent first rollers 11 are connected, thereby combining multiple independent first rollers 11 into a unified intermediate support structure. In this embodiment, the connector 2 is a high-strength alloy connecting rod, with both ends inserted into the openings 31 of adjacent bearing seats 3 to form a transition fit. This ensures the stability of the connection and allows for quick separation by disassembling the connector 2 when a single first roller 11 needs to be replaced, without disassembling the entire roller assembly 1.

[0026] Furthermore, the first roller 11 also includes a wear-resistant layer 114 sleeved on the outside of the roller tube 113. The wear-resistant layer 114 significantly improves the frictional durability of the first roller 11 with the material and the conveyor belt. Preferably, the wear-resistant layer 114 is made of polyurethane elastomer material, and its surface is treated with silicon carbide particle spraying to form a micron-level wear-resistant particle layer, which retains the elastic cushioning performance of polyurethane and enhances the surface hardness through hard particles. The wear-resistant layer 114 and the roller tube 113 are integrally connected through a hot vulcanization process, which can effectively prevent failure phenomena such as bulging and delamination during long-term dynamic friction.

[0027] First support members 51 are provided on both sides of the fixed frame 5. In this embodiment, two first support members 51 are provided. The first shaft 111 of the first roller 11 near the first support member 51 is fixed to the first support member 51. That is, when the structure moves, the conveyor belt drives the roller tube 113 to move relative to the first shaft 111 under the action of the bearing seat 3 and the bearing 4. Second support members 52 are also provided at both ends of the fixed frame 5. In this embodiment, two second support members 52 are provided. The second roller 12 includes a second shaft 121. The two ends of the second shaft 121 are fixed to the first support member 51 and the second support member 52, respectively. The structure of the second roller 12 is similar to that of the first roller 11, the only difference being the size and the fact that it does not need to be connected by the connecting member 2. It is independently and obliquely arranged on both sides of the fixed frame 5, working in conjunction with the first roller 11 to effectively limit the lateral displacement of the conveyor belt during the conveying process. When multiple obliquely arranged second rollers 12 are required, the connection is set with the connecting member 2 as between the first rollers 11. A third support member 53 is symmetrically arranged on the fixed frame 5. In this embodiment, two third support members 53 are also provided. The third support members 53 improve the overall structural stability of the fixed frame 5 and prevent the fixed frame 5 from bending and deforming under long-term heavy load.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A segmented wear-resistant idler structure for a belt conveyor, characterized in that: The structure includes a roller group (1), which includes a plurality of horizontally arranged first rollers (11), each of which has a connecting area on its end face near another first roller (11); the structure also includes a connector (2), which passes through the adjacent connecting areas to connect adjacent first rollers (11). The connecting area is provided with a bearing seat (3) on the end face of the first roller (11), and a bearing (4) is also connected inside the bearing seat (3). The bearing housing (3) has holes (31) evenly provided on its surface, and the two ends of the connector (2) are respectively fitted into the holes (31). The first roller (11) further includes a first shaft (111) that passes through and cooperates with the bearing (4), and the first shaft (111) protrudes from both end faces of the first roller (11); The first roller (11) also includes a positioning member (112) that is snapped onto the first shaft (111), and the positioning member (112) is also disposed against the bearing (4); The first roller (11) further includes a roller tube (113), and the bearing housing (3) is fitted to the roller tube (113) at both ends. The first roller (11) also includes a wear-resistant layer (114) sleeved on the outside of the roller tube (113).

2. The segmented wear-resistant idler structure for a belt conveyor as described in claim 1, characterized in that: The structure also includes a fixing frame (5), and first support members (51) are provided on both sides of the fixing frame (5). The first shaft (111) of the first roller (11) near the first support member (51) is fixed to the first support member (51).

3. The segmented wear-resistant idler structure for a belt conveyor as described in claim 2, characterized in that: The fixed frame (5) is also provided with a second support member (52) at both ends. The roller group (1) also includes a second roller (12). The second roller (12) includes a second shaft (121). The two ends of the second shaft (121) are respectively fixed to the first support member (51) and the second support member (52).

4. The segmented wear-resistant idler structure for a belt conveyor as described in claim 3, characterized in that: A third support member (53) is symmetrically arranged on the fixed frame (5).

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