A roller structure and a conveying device
By designing a detachable roller shaft and roller structure, the problem of rapid wear of the idler roller structure during heavy-load transportation is solved, enabling individual replacement of the roller, facilitating inspection and maintenance, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGYUN HONGHE TOBACCO (GRP) CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-05
AI Technical Summary
Existing idler roller structures are prone to wear during long-distance heavy-load transportation, resulting in uneven loading of the conveyor belt. Replacing long rollers is inconvenient and costly.
The design features a detachable roller and drum structure, connected by set screws and bearings. The drum can be replaced individually, and the use of nylon material and friction patterns enhances its wear resistance.
This allows for the individual replacement of the rollers, facilitating inspection and maintenance, reducing replacement costs and maintenance difficulty, and extending the service life of the equipment.
Smart Images

Figure CN224324606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveying equipment technology, and in particular to a roller structure and conveying device. Background Technology
[0002] The idler roller structure is a crucial component of belt conveyors. In existing technology, the idler roller structure consists of a single roller shaft with a long, continuous roller mounted on it. During operation, in certain long-distance, heavy-load transport scenarios, the conveyor belt is pressed down, causing close contact between the belt and the long roller, resulting in excessive wear on the roller. Furthermore, the materials transported on the conveyor belt are often irregularly stacked, leading to uneven load distribution and further accelerating the wear of the long roller, necessitating replacement after a period of use. This replacement process requires a complete overhaul of the long roller, which is inconvenient due to its size and weight, and also increases maintenance costs by replacing usable portions of the roller. Utility Model Content
[0003] The purpose of this utility model is to provide a roller structure and conveying device, which has a simple structure, is easy to disassemble and assemble, can realize the replacement of some rollers, facilitates inspection and maintenance, and reduces costs.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] A roller structure, comprising:
[0006] Roller shaft;
[0007] Multiple rollers are provided, and the multiple rollers are detachably sleeved on the roller shaft. The multiple rollers are spaced apart on the roller shaft, and the rollers are arranged axially parallel to the roller shaft.
[0008] Supports are provided at opposite ends of the roller shaft in the axial direction. The ends of the roller shaft are rotatably connected to the support at the corresponding ends, and the ends of the roller shaft and the support at the corresponding ends are detachably connected.
[0009] Preferably, the roller has a mounting hole, the roller is sleeved on the roller shaft through the mounting hole, and the roller is fixed to the roller shaft by a fixing member.
[0010] Preferably, the fixing member is a set screw, and the roller has a first threaded hole communicating with the mounting hole. The set screw is threadedly connected to the first threaded hole and abuts against the side wall of the roller shaft.
[0011] Preferably, the support is provided with a bearing, and the support is rotatably connected to the roller shaft through the bearing.
[0012] Preferably, the support has an inserting hole, the outer ring of the bearing is fixedly inserted into the inserting hole, and the end of the roller shaft passes through the inner ring of the bearing and is fixedly connected to the inner ring of the bearing.
[0013] Preferably, the roller shaft is further provided with a retaining ring, which is fixedly disposed at the end of the roller shaft after passing through the bearing, and the retaining ring is used to provide axial limiting for the roller shaft.
[0014] Preferably, the retaining ring is C-shaped.
[0015] Preferably, the roller is made of nylon.
[0016] Preferably, the sidewall of the roller is provided with friction patterns.
[0017] A conveying device, comprising:
[0018] A base frame, on which a plurality of roller structures as described in any of the above claims are provided, wherein the support of the roller structure is fixedly disposed on the base frame;
[0019] A conveyor belt, which is tensioned and fitted onto the rollers of the plurality of idler structures.
[0020] Beneficial effects:
[0021] The idler roller structure provided by this utility model is simple in structure and easy to assemble and disassemble. The roller shaft is detachable from the support, and the roller is detachable from the roller shaft. When some rollers among multiple rollers are severely worn and need to be replaced, the rollers that need to be replaced can be disassembled individually and replaced with new rollers. This allows for the individual replacement of some rollers in the idler roller structure, which is convenient for inspection and maintenance and reduces costs.
[0022] The conveying device provided by this utility model includes the above-mentioned idler roller structure. It has a simple structure and is easy to disassemble and assemble. When some rollers are severely worn and need to be replaced, the rollers that need to be replaced can be disassembled separately and replaced with new rollers, thereby realizing the individual replacement of some rollers in the idler roller structure, which facilitates inspection and maintenance and reduces costs. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the idler roller structure provided by this utility model;
[0024] Figure 2 This is a partial structural diagram of the idler roller structure provided by this utility model.
[0025] In the picture:
[0026] 1. Roller shaft;
[0027] 2. Roller; 21. Mounting hole; 22. First threaded hole;
[0028] 3. Support; 31. Bearing; 32. Insertion hole; 33. Connection hole;
[0029] 4. Set screw;
[0030] 5. Snap ring. Detailed Implementation
[0031] 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 it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction 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.
[0033] 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.
[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0035] This embodiment provides a roller structure. (Refer to...) Figures 1 to 2As shown, the idler roller structure includes a roller shaft 1, rollers 2, and supports 3. Multiple rollers 2 are provided, detachably mounted on the roller shaft 1, spaced apart, and arranged axially parallel to the roller shaft 1. Supports 3 are located at opposite ends of the roller shaft 1 in the axial direction, with the ends of the roller shaft 1 rotatably connected to the corresponding supports 3, and these connections are detachable.
[0036] The idler roller structure provided in this embodiment is simple in structure and easy to assemble and disassemble. The roller shaft 1 is detachable from the support 3, and the roller 2 is detachable from the roller shaft 1. When some rollers 2 are severely worn and need to be replaced, the rollers 2 that need to be replaced can be disassembled individually and replaced with new rollers 2. This allows for the individual replacement of some rollers 2 in the idler roller structure, which is convenient for inspection and maintenance and reduces costs.
[0037] For example, in this embodiment, the number of rollers 2 is set to six. The six rollers 2 are evenly distributed along the axial direction of the roller shaft 1 to ensure that the rollers 2 are evenly distributed and subjected to uniform force.
[0038] Specifically, in this embodiment, the roller 2 has a mounting hole 21, through which the roller 2 is fitted onto the roller shaft 1, and the roller 2 is fixed to the roller shaft 1 by a fixing member. Specifically, the diameter of the mounting hole 21 is slightly larger than the diameter of the roller shaft 1, that is, the roller 2 and the roller shaft 1 are in clearance fit, which facilitates the smooth fitting of the roller 2 onto the roller shaft 1. In addition, after the roller 2 is fitted onto the roller shaft 1, it is fixed by the fixing member to prevent the roller 2 from moving freely relative to the roller shaft 1.
[0039] In this embodiment, the fixing member is a set screw 4. The roller 2 has a first threaded hole 22 that communicates with the mounting hole 21. The set screw 4 is threadedly connected to the first threaded hole 22 and abuts against the side wall of the roller shaft 1. Specifically, after the set screw 4 is screwed into the first threaded hole 22, the head of the set screw 4 extends into the mounting hole 21 and abuts against the side wall of the roller shaft 1, pressing the roller shaft 1 against the hole wall of the mounting hole 21, ensuring reliable fixing between the roller 2 and the roller shaft 1.
[0040] In some other alternative embodiments, the roller shaft 1 is provided with a second threaded hole (not shown) corresponding to the first threaded hole 22. When the roller 2 is fitted into place relative to the roller shaft 1, the first threaded hole 22 and the corresponding second threaded hole are in a coaxial communication position. At this time, the set screw 4 is screwed into the first threaded hole 22 and the second threaded hole in sequence, which can also achieve reliable fixation between the roller 2 and the roller shaft 1.
[0041] In some other alternative implementations, the positioning between the roller 2 and the roller shaft 1 can also be achieved by means of accessories such as clamps, limiting the position of the roller 2 in the axial direction of the roller shaft 1 and preventing the roller 2 from moving back and forth.
[0042] In this embodiment, the support 3 is provided with a bearing 31, and the support 3 is rotatably connected to the roller shaft 1 through the bearing 31. Specifically, the support 3 has an inserting hole 32, the outer ring of the bearing 31 is fixedly inserted into the inserting hole 32, and the end of the roller shaft 1 passes through the inner ring of the bearing 31 and is fixedly connected to the inner ring of the bearing 31. Specifically, there is an interference fit between the outer ring of the bearing 31 and the inserting hole 32, and there is an interference fit between the end of the roller shaft 1 and the inner ring of the bearing 31.
[0043] In this embodiment, the roller structure also includes a retaining spring 5, which is fixedly disposed at the end of the roller shaft 1 after passing through the bearing 31. The retaining spring 5 is used to provide axial limiting for the roller shaft 1. By providing the retaining spring 5, the roller shaft 1 can be limited, preventing the roller shaft 1 from moving axially relative to the support 3.
[0044] For example, the retaining ring 5 is shaped like a C. This design facilitates installation, removal, and replacement.
[0045] In this embodiment, the roller 2 is made of nylon. Nylon is a highly polar polymer material, in which numerous hydrogen bonds can form between its molecules, resulting in a high melting point with a narrow melting range. This material exhibits excellent mechanical properties, hydrophilicity, lubricity, wear resistance, corrosion resistance, oil resistance, and barrier properties. It is non-toxic and odorless, and also has good processing performance, making it widely used in various industries. Furthermore, using nylon for the roller 2 reduces its own weight and lowers the overall load on the idler roller structure.
[0046] As an optional implementation, the side wall of the roller 2 is provided with friction patterns (not shown). By providing friction patterns, the friction between the roller 2 and the conveyor belt can be increased, preventing slippage between the roller and the conveyor belt and avoiding transmission failure.
[0047] This embodiment also provides a conveying device. The conveying device includes the aforementioned idler roller structure, as well as a frame and a conveyor belt. Specifically, a plurality of idler roller structures are provided on the base frame, and the supports 3 of the idler roller structures are fixedly mounted on the base frame. The conveyor belt is tensioned and sleeved on the rollers 2 of the plurality of idler roller structures.
[0048] By installing the aforementioned idler roller structure on the conveying device, the beneficial effects of the aforementioned idler roller structure can be achieved, namely, simple structure and convenient assembly and disassembly. The roller shaft 1 is detachable from the support 3, and the roller 2 is detachable from the roller shaft 1. When some rollers 2 among the multiple rollers 2 are severely worn and need to be replaced, the rollers 2 that need to be replaced can be disassembled individually and replaced with new rollers 2, thereby realizing the individual replacement of some rollers 2 in the idler roller structure, which facilitates inspection and maintenance and reduces costs.
[0049] Specifically, the support 3 has a connecting hole 33 for fixed connection with the base frame. Specifically, the support 3 and the base frame are fixedly connected by bolts. The base frame has a third threaded hole, and the bolt passes through the connecting hole 33 and is threaded into the third threaded hole.
[0050] For example, when material falls onto the surface of the conveyor belt, the material's gravity presses down on the conveyor belt, and the conveyor belt comes into contact with the roller 2. The friction between the conveyor belt and the roller 2 drives the roller 2 to rotate the roller shaft 1. When a roller 2 is excessively worn and needs to be replaced, the retaining spring 5 at one end can be removed to separate the roller shaft 1 from the corresponding side bearing 31. The set screw 4 can be loosened to remove the rollers 2 one by one, and then the severely worn rollers 2 can be replaced. Then, the disassembly sequence is reversed and the rollers are reinstalled.
[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A roller structure, characterized in that, include: Roller (1); Multiple rollers (2) are provided, and the multiple rollers (2) are detachably sleeved on the roller shaft (1). The multiple rollers (2) are spaced apart on the roller shaft (1), and the rollers (2) are arranged axially parallel to the roller shaft (1). Support (3) is provided at both ends opposite to each other in the axial direction of the roller (1). The end of the roller (1) is rotatably connected to the support (3) at the corresponding end, and the end of the roller (1) and the support (3) at the corresponding end are detachably connected.
2. The idler roller structure according to claim 1, characterized in that, The roller (2) has an installation hole (21), the roller (2) is sleeved on the roller shaft (1) through the installation hole (21), and the roller (2) is fixed on the roller shaft (1) by a fastener.
3. The idler roller structure according to claim 2, characterized in that, The fixing component is a set screw (4), and the roller (2) has a first threaded hole (22) that communicates with the mounting hole (21). The set screw (4) is threadedly connected to the first threaded hole (22) and abuts against the side wall of the roller shaft (1).
4. The idler roller structure according to claim 1, characterized in that, The support (3) is provided with a bearing (31), and the support (3) is rotatably connected to the roller (1) through the bearing (31).
5. The idler roller structure according to claim 4, characterized in that, The support (3) has an embedding hole (32), the outer ring of the bearing (31) is fixedly embedded in the embedding hole (32), and the end of the roller (1) passes through the inner ring of the bearing (31) and is fixedly connected to the inner ring of the bearing (31).
6. The idler roller structure according to claim 5, characterized in that, It also includes a retaining ring (5), which is fixedly disposed at the end of the roller shaft (1) after passing through the bearing (31), and the retaining ring (5) is used to provide axial limit for the roller shaft (1).
7. The idler roller structure according to claim 6, characterized in that, The circlip (5) is C-shaped.
8. The idler roller structure according to claim 1, characterized in that, The roller (2) is made of nylon.
9. The idler roller structure according to claim 1, characterized in that, The roller (2) has friction patterns on its side wall.
10. A conveying device, characterized in that, include: A base frame, on which a plurality of roller structures as described in any one of claims 1-9 are provided, wherein the support (3) of the roller structure is fixedly disposed on the base frame; A conveyor belt, which is tensioned and fitted onto the rollers (2) of the plurality of idler structures.