A new combined roller structure
The combination of roller structure with fan-ring connection and elastic snap-fit design enables quick installation and individual replacement of roller sleeves, solving the problem of traditional rollers requiring overall replacement and improving equipment maintenance efficiency and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING ZHUOYUE MASCH EQUIP MFG CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional roller structures require the entire roller to be replaced when a part of it is damaged, increasing maintenance costs and downtime. Installation and disassembly are also complex, affecting equipment efficiency.
The roller core and roller sleeve are connected by mounting grooves and protrusions of the fan ring structure. Combined with the elastic snap-fit block and the plug-in block of the end cover, quick installation and disassembly are achieved. The roller sleeve can be replaced separately.
It improves the robustness of roller connections and assembly efficiency, reduces maintenance costs, minimizes downtime, and enhances equipment maintainability.
Smart Images

Figure CN224444096U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller technology, and more specifically, to a novel combined roller structure. Background Technology
[0002] In industrial production, rollers are widely used in various equipment such as material conveying, rolling, and printing. Traditional roller structures are typically one-piece designs, which have the following problems: First, when a part of a one-piece roller is damaged, the entire roller needs to be replaced, increasing maintenance costs; second, the installation and disassembly process of traditional rollers is relatively complex, requiring a significant amount of time and manpower. These problems not only affect the operating efficiency of the equipment but also increase maintenance costs and downtime. To address these issues, this device was invented. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a novel combined roller structure to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel combined roller structure, including a roller core, a roller sleeve, and end caps, wherein an mounting core is integrally connected to the center of the roller core, and two end caps are provided, which are respectively located on both sides of the roller sleeve.
[0005] The mounting core surface has multiple mounting grooves along the axial direction, and the mounting grooves have a fan-ring structure.
[0006] The roller sleeve has a hollow structure, and its inner wall is provided with multiple mounting protrusions along the axial direction that correspond to the mounting grooves. The mounting protrusions have a fan-ring structure.
[0007] A No. 1 snap-fit hole is provided on both sides of the mounting groove, and a No. 1 mounting hole is provided on both sides of the mounting protrusion. A No. 1 spring is fixedly installed in the No. 1 mounting hole, and a No. 1 snap-fit block is fixedly installed on the outer end of the No. 1 spring. The No. 1 snap-fit block is adapted to the No. 1 snap-fit hole.
[0008] Multiple insertion holes are provided at both ends of the roller sleeve. Second snap-fit holes are provided on both sides of the insertion holes. Insertion blocks that are compatible with the insertion holes are fixedly installed on the inner side of the end cover. Second mounting holes are provided on both sides of the insertion blocks. Second springs are fixedly installed in the second mounting holes. Second snap-fit blocks are fixedly installed on the outer end of the second springs. The second snap-fit blocks are compatible with the second snap-fit holes.
[0009] Furthermore, the number of mounting grooves and mounting protrusions are equal and they are evenly distributed along the axial direction.
[0010] Furthermore, the length of the roller sleeve is consistent with the length of the mounting core, and the inner diameter of the roller sleeve is matched with the diameter of the mounting core.
[0011] Furthermore, a wear-resistant layer is provided on the outer surface of the roller sleeve.
[0012] Furthermore, sealing gaskets are provided between the two ends of the roller sleeve and the end caps on both sides.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The roller core has a fan-ring structure mounting groove on its mounting core surface, and the inner wall of the roller sleeve has a corresponding mounting protrusion. This structural design allows the roller sleeve and roller core to fit tightly together, ensuring a firm connection. It also facilitates quick positioning and installation, improving assembly efficiency. Furthermore, the roller core and roller sleeve are detachably connected. When the roller sleeve is partially damaged, only the damaged part needs to be replaced, instead of replacing the entire roller, reducing maintenance costs. The connection between the roller sleeve and roller core, as well as between the end cap and roller sleeve, adopts an elastic fixing method, making disassembly and installation simple and quick. This design facilitates the replacement or maintenance of the roller sleeve, reduces downtime, and improves the maintainability of the equipment. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 A schematic diagram of the overall structure of this utility model;
[0017] Figure 2 Exploded view provided for this utility model;
[0018] Figure 3 A schematic diagram of the structure of the roller sleeve provided by this utility model;
[0019] Figure 4 A schematic diagram of the installation of the No. 1 card connector provided by this utility model;
[0020] Figure 5 This is a schematic diagram of the installation of the No. 2 snap-fit block provided by this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Roller core; 2. Roller sleeve; 3. End cap; 4. Mounting core; 5. Mounting groove; 6. Mounting protrusion; 7. No. 1 snap-fit hole; 8. No. 1 spring; 9. No. 1 snap-fit block; 10. Insertion hole; 11. No. 2 snap-fit hole; 12. Insertion block; 13. No. 2 spring; 14. No. 2 snap-fit block. Detailed Implementation
[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] See attached document Figure 1 and Figure 2 This embodiment of a novel combined roller structure includes a roller core 1, a roller sleeve 2, and end caps 3. Two end caps 3 are provided, respectively located on both sides of the roller sleeve 2. An mounting core 4 is integrally connected to the middle of the roller core 1. The roller core 1 is made of high-strength alloy steel to improve its load-bearing capacity and deformation resistance. The outer surface of the roller sleeve 2 is provided with a wear-resistant layer, which is made of ceramic material or high-hardness alloy material. Ceramic material has high hardness, high wear resistance, and good corrosion resistance, which can effectively extend the service life of the roller sleeve 2 and improve its wear resistance.
[0026] See attached document Figure 2 The roller core 1 has a cylindrical structure. The diameter of the mounting core 4 is larger than that of the roller core 1. Multiple mounting grooves 5 are provided on the surface of the mounting core 4 along its axial direction. The mounting grooves 5 have a fan-shaped structure. The inner arc of the fan-shaped structure faces the inner side of the mounting core 4, and the outer arc of the fan-shaped structure faces the outer side of the mounting core 4, so as to facilitate the installation and removal of the roller sleeve 2.
[0027] See attached document Figure 2 The roller sleeve 2 is a hollow structure. The length of the roller sleeve 2 is the same as the length of the mounting core 4, and the inner diameter of the roller sleeve 2 is the same as the diameter of the mounting core 4. Multiple mounting protrusions 6 are arranged axially along the inner wall of the roller sleeve 2. The number of mounting protrusions 6 is equal to the number of mounting grooves 5, and each mounting protrusion 6 corresponds one-to-one with a mounting groove 5. The mounting protrusions 6 are also fan-shaped ring structures, with the inner arc of the fan-shaped structure facing the inner side of the roller sleeve 2, and the outer arc of its fan-shaped structure facing the outer side of the roller sleeve 2. This fan-shaped ring structure design allows the mounting protrusions 6 of the roller sleeve 2 to fit tightly into the mounting grooves 5 of the mounting core 4, ensuring a secure connection between the roller sleeve 2 and the roller core 1, while also facilitating quick positioning and installation.
[0028] See attached document Figure 2 and Figure 4Each mounting groove 5 has a No. 1 snap-fit hole 7 on both sides, and each mounting protrusion 6 has a No. 1 mounting hole on both sides. A No. 1 spring 8 is fixedly installed in the No. 1 mounting hole, and a No. 1 snap-fit block 9 that matches the No. 1 snap-fit hole 7 is fixedly installed on the outer end of the No. 1 spring 8. When the roller sleeve 2 is installed on the roller core 1, the No. 1 snap-fit block 9 is inserted into the No. 1 snap-fit hole 7 under the action of the No. 1 spring 8, realizing elastic fixation and further enhancing the reliability of the connection.
[0029] See attached document Figures 3-5 The roller sleeve 2 has multiple insertion holes 10 at both ends, and secondary locking holes 11 on both sides of each insertion hole 10. Two end caps 3 are respectively located on both sides of the roller sleeve 2. Insertion blocks 12 adapted to the insertion holes 10 are fixedly installed inside the end caps 3. Secondary mounting holes are opened on both sides of each insertion block 12. Secondary springs 13 are fixedly installed in the secondary mounting holes, and secondary locking blocks 14 adapted to the secondary locking holes 11 are fixedly installed on the outer ends of the secondary springs 13. The secondary springs 13 and secondary locking blocks 14 on both sides of the insertion block 12 cooperate with the secondary locking holes 11 on both sides of the insertion holes 10 to achieve elastic fixation between the end caps 3 and the roller sleeve 2.
[0030] Sealing gaskets (not shown in the figure) are provided between the two ends of the roller sleeve 2 and the end caps 3 on both sides to prevent dust and impurities from entering the roller core 1 and improve the sealing performance of the roller. The end caps 3 are made of high-strength aluminum alloy, which is lightweight, high-strength and has good corrosion resistance, effectively reducing the overall weight of the roller while ensuring the structural strength of the end caps 3.
[0031] In the technical solution adopted in this embodiment, before assembly, ensure that the mounting groove 5 on the surface of the mounting core 4 of the roller core 1 and the mounting protrusion 6 on the inner wall of the roller sleeve 2 are clean and free of impurities. Align the roller sleeve 2 with the mounting core 4 of the roller core 1, so that the mounting protrusion 6 of the roller sleeve 2 is aligned with the mounting groove 5 of the roller core 1. Then insert the roller sleeve 2 axially until the mounting protrusion 6 is fully inserted into the mounting groove 5. During the insertion process, the first spring 8 will automatically push the first snap-fit block 9 into the first snap-fit hole 7 to achieve elastic fixation. At this time, the roller sleeve 2 and the roller core 1 are firmly connected. Align the insertion block 12 of one end cap 3 with the insertion hole 10 at one end of the roller sleeve 2 and insert the insertion block 12 into the insertion hole 10. At the same time, ensure that the sealing gasket between the end cap 3 and the roller sleeve 2 is correctly installed to prevent dust and impurities from entering. During the insertion process, the second spring 13 will automatically push the second snap-fit block 14 into the second snap-fit hole 11 to achieve elastic fixation. Repeat the above steps to install the other end cap 3 onto the other end of the roller sleeve 2.
[0032] The technical solution of this utility model optimizes the connection structure between the roller core 1 and the roller sleeve 2, thereby enhancing the wear resistance and sealing performance of the roller, improving the service life and operational stability of the roller, and demonstrating significant practicality and innovation.
[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel modular roller construction characterized in that, It includes a roller core (1), a roller sleeve (2) and an end cap (3). The roller core (1) is integrally connected to a mounting core (4) in the middle. There are two end caps (3), which are located on both sides of the roller sleeve (2). The mounting core (4) has a plurality of mounting grooves (5) arranged along the axial direction on its surface, and the mounting grooves (5) are fan-ring structures; The roller sleeve (2) is a hollow structure, and its inner wall is provided with a plurality of mounting protrusions (6) corresponding to the mounting groove (5) along the axial direction. The mounting protrusions (6) are fan ring structures. The mounting groove (5) has a No. 1 snap-fit hole (7) on both sides, and the mounting protrusion (6) has a No. 1 mounting hole on both sides. A No. 1 spring (8) is fixedly installed in the No. 1 mounting hole, and a No. 1 snap-fit block (9) is fixedly installed at the outer end of the No. 1 spring (8). The No. 1 snap-fit block (9) is adapted to the No. 1 snap-fit hole (7). The roller sleeve (2) has multiple insertion holes (10) at both ends. The insertion holes (10) have second snap-fit holes (11) on both sides. The end cover (3) has a fixed insertion block (12) that matches the insertion holes (10). The insertion block (12) has a second mounting hole on both sides. The second mounting hole has a second spring (13) fixedly installed in the second mounting hole. The second snap-fit block (14) is fixedly installed on the outer end of the second spring (13). The second snap-fit block (14) matches the second snap-fit hole (11).
2. A novel combination roller structure as claimed in claim 1, wherein: The number of mounting grooves (5) and mounting protrusions (6) are equal and they are evenly distributed along the axial direction.
3. A novel combination roller structure as claimed in claim 1, wherein: The length of the roller sleeve (2) is the same as the length of the mounting core (4), and the inner diameter of the roller sleeve (2) is matched with the diameter of the mounting core (4).
4. A novel combination roller structure as claimed in claim 1, wherein: The outer surface of the roller sleeve (2) is provided with a wear-resistant layer.
5. A novel combination roller structure as claimed in claim 1, wherein: Sealing gaskets are provided between the two ends of the roller sleeve (2) and the end caps (3) on both sides.