Firm and durable chain roller

Abstract

The utility model relates to the technical field of chain rollers, and discloses a firm and durable chain roller which comprises a roller body, a rolling shaft is connected to the inner wall of the roller body in a sliding mode, external threads are arranged at the two ends of the rolling shaft, and threaded limiting sleeves are connected to the two ends of the rolling shaft in a threaded mode through the external threads. A bearing is arranged on the outer wall, close to the inner side of the rolling shaft, of the rolling shaft, sliding rings are fixedly connected to the two sides of the inner wall of the roller body, and sliding assemblies are arranged in the sliding rings. According to the utility model, through the running fit of the roller body and the rolling shaft and the design of the balls in the sliding ring, the friction force between the sliding ring and the rolling shaft is effectively reduced, and the stability of the roller during rotation is obviously improved; meanwhile, the sliding ring can be prevented from being separated from the rolling shaft through the limiting ring, it is ensured that the roller always operates reliably in the working process, and the firmness and durability of the chain roller are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chain roller technical field especially relates to the chain roller of firm and durable. BACKGROUND

[0002] In modern industrial production, chain roller as the key component of mechanical transmission system is widely used in various mechanical equipment, such as conveying device, automatic production line, agricultural machinery etc. Its performance directly influences the stability and efficiency of equipment operation, therefore, developing firm and durable, reliable operation chain roller has been an important subject in mechanical manufacturing field.

[0003] At present, the common chain roller structure mainly consists of roller body and roller shaft, and realizes chain transmission through the rotation of roller body on roller shaft. In traditional design, the cooperation between roller body and roller shaft adopts simple sliding or rolling contact form, and relies on lubricating oil to reduce friction. In the long-term use process, this structure relies on single contact and lubrication mode to maintain operation, and it is difficult to ensure the stable rotation of roller under complex working conditions.

[0004] However, due to the lack of effective optimization mechanism to reduce the friction between roller and roller shaft in the structure design of existing chain roller, and the lack of reliable limiting structure for sliding parts in the rotation process of roller, the roller is prone to excessive friction and poor rotation stability during operation. At the same time, the risk of sliding parts separating from the roller shaft is high, which shortens the service life of chain roller, and frequent replacement not only increases the maintenance cost, but also affects the continuous operation efficiency of mechanical equipment. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a firm and durable chain roller, which aims at improving the problem that the existing chain roller lacks effective optimization mechanism to reduce the friction between roller and roller shaft in the structure design, and lacks reliable limiting structure for sliding parts in the rotation process of roller, which leads to excessive friction and poor rotation stability of roller during operation.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a firm and durable chain roller, comprising a roller body, the inner wall of the roller body is slidably connected with a roller shaft, the both ends of the roller shaft are provided with external threads, the both ends of the roller shaft are threadedly connected with threaded limiting sleeves through the external threads, the outer wall of the roller shaft is provided with a bearing close to the inner side of the roller shaft, the inner wall of the roller body is fixedly connected with sliding rings on both sides, and the sliding rings are provided with sliding assemblies inside.

[0007] The sliding assembly comprises a limiting ring and a ball, the limiting ring is fixedly connected with the inner wall of the sliding ring, the ball is rotatably connected with the inside of the sliding ring, and arc-shaped sliding grooves are formed in the both sides of the inside of the roller shaft.

[0008] Further, the inner sliding connection of the bearing is connected with the annular limiting plate, one side of the outer wall of the annular limiting plate is provided with a reset assembly, and the other side of the outer wall of the annular limiting plate is fixedly connected with a clamping block.

[0009] Further, the reset assembly comprises a sliding shaft and a spring, one end of the sliding shaft is fixedly connected to one side of the outer wall of the annular limiting plate, and the spring is sleeved on the outer wall of the sliding shaft.

[0010] Further, the outer wall of the sliding shaft is slidingly connected in the inner part of the bearing, and the sliding shaft is used for guiding the annular limiting plate and the spring.

[0011] Further, one end of the spring is fixedly connected to one side of the outer wall of the annular limiting plate, and the other end of the spring is fixedly connected to the inner part of the bearing.

[0012] Further, the outer wall of the clamping block is slidingly connected in the inner part of the threaded limiting sleeve and the bearing.

[0013] Further, the outer threads at both ends of the roller are matched with the inner threads of the two threaded limiting sleeves, respectively.

[0014] Further, the limiting ring and the ball are slidingly connected in the inner part of the arc-shaped sliding groove, and are used for limiting the sliding ring.

[0015] The utility model has the advantages of the following:

[0016] 1. In the utility model, through the rotation cooperation of the roller body and the roller, in combination with the design of the ball in the inner part of the sliding ring, the friction between the sliding ring and the roller is effectively reduced, and the stability during rotation of the roller is significantly improved. At the same time, the setting of the limiting ring can prevent the sliding ring from separating from the roller, ensure that the roller always keeps reliable operation during the working process, and greatly enhance the firmness and durability of the chain roller.

[0017] 2. In the utility model, after the threaded limiting sleeve is installed, the spring rebounds to push the clamping block to embed in the groove, and the double protection mechanism effectively prevents the chain roller from separating from the chain and the threaded limiting sleeve from falling off during use, further improves the stability and reliability of the overall structure of the chain roller, and meets the long-term high-strength use requirement. ACCURATE DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the firm and durable chain roller put forward in the utility model;

[0019] Figure 2 It is a roller body side structure schematic view of the firm and durable chain roller put forward in the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the roller body of the robust and durable chain roller proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0023] Legend:

[0024] 1. Roller body; 2. Roller shaft; 3. External thread; 4. Threaded limiting sleeve; 5. Bearing; 6. Sliding ring; 7. Limiting ring; 8. Ball bearing; 9. Arc-shaped groove; 10. Sliding shaft; 11. Locking block; 12. Annular limiting plate; 13. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-4 This utility model provides an embodiment of a robust and durable chain roller, comprising a roller body 1 that rotates around the outer wall of a roller shaft 2 to realize the transmission function of the chain. The inner wall of the roller body 1 is slidably connected to the roller shaft 2, providing rotational support for the roller body 1. At the same time, the inside serves as a sliding track for a sliding ring 6. Both ends of the roller shaft 2 are provided with external threads 3, and both ends of the roller shaft 2 are threadedly connected to threaded limit sleeves 4 through the external threads 3. These limit sleeves 4 are installed at both ends of the roller shaft 2 through threaded connections to firmly fix the chain roller and prevent it from falling off the chain. During installation, a pressure block 11 is applied in conjunction with other structures to achieve self-limitation and prevent it from falling off during use. A bearing 5 is provided on the outer wall of the roller shaft 2 near the inner side of the roller shaft 2. Both sides of the inner wall of the roller body 1 are fixedly connected to the sliding rings 6, which are connected to the internal structure of the roller body 1. When the roller body 1 rotates, the rings slide inside the roller shaft 2, playing a role in transmission and assisting the movement of the roller. The sliding ring 6 is provided with a sliding component inside.

[0027] The sliding assembly includes a limiting ring 7 and balls 8. The limiting ring 7 is fixedly connected to the inner wall of the sliding ring 6, and the balls 8 are rotatably connected inside the sliding ring 6. Distributed inside the sliding ring 6, the sliding friction between the sliding ring 6 and the roller 2 is converted into rolling friction, which greatly reduces friction and improves the running stability of the chain roller. The roller 2 has arc-shaped grooves 9 on both sides inside. The external threads 3 at both ends of the roller 2 are respectively matched with the internal threads of the two threaded limiting sleeves 4. The limiting ring 7 and the balls 8 are slidably connected inside the arc-shaped grooves 9 to limit the sliding ring 6. The limiting ring 7 is located inside the roller 2 and prevents the sliding ring 6 from moving to the end of the roller 2, preventing the sliding ring 6 from detaching from the roller 2 and enhancing the durability of the chain roller.

[0028] Specifically, when the roller body 1 rotates, the structure connected to the sliding ring 6 inside it causes the sliding ring 6 to slide back and forth inside the roller 2. To reduce the frictional resistance during the sliding process, multiple balls 8 are evenly distributed inside the sliding ring 6, forming rolling friction between the sliding ring 6 and the roller 2. Compared with traditional sliding friction, this greatly reduces friction and significantly improves the stability of the chain roller. At the same time, the limiting ring 7 fits tightly inside the roller 2, and its annular structure can effectively prevent the sliding ring 6 from moving to the end of the roller 2, thereby preventing the sliding ring 6 from leaving the internal space of the roller 2 and further enhancing the robustness and durability of the chain roller. At both ends of the roller 2, threaded limiting sleeves 4 are installed by threaded connection, which can firmly fix the chain roller and effectively prevent the chain roller from accidentally falling off the chain, ensuring the reliable operation of the chain drive system.

[0029] Reference Figures 1-5 The bearing 5 is internally slidably connected to the annular limiting plate 12. A reset assembly is provided on one side of the outer wall of the annular limiting plate 12, and a locking block 11 is fixedly connected to the other side of the outer wall of the annular limiting plate 12. The annular limiting plate 12, the locking block 11, and the sliding shaft 10 are linked. When the threaded limiting sleeve 4 is installed, the spring 13 is compressed. When the spring 13 rebounds, the locking block 11 completes the limiting action of the threaded limiting sleeve 4. The reset assembly includes the sliding shaft 10 and the spring 13. One end of the sliding shaft 10 is fixedly connected to one side of the outer wall of the annular limiting plate 12, connecting the annular limiting plate 12 and the locking block 11 to transmit motion. The spring 13 is sleeved on the sliding shaft 10. The outer wall of the sliding shaft 10 is slidably connected to the inside of the bearing 5. The sliding shaft 10 is used to guide the annular limiting plate 12 and the spring 13. One end of the spring 13 is fixedly connected to one side of the outer wall of the annular limiting plate 12. When the threaded limiting sleeve 4 is installed, it is compressed and stores elastic potential energy. After installation, it releases energy and pushes the locking block 11 to move, thereby limiting and fixing the threaded limiting sleeve 4. The other end of the spring 13 is fixedly connected to the inside of the bearing 5. The outer wall of the locking block 11 is slidably connected to the inside of the threaded limiting sleeve 4 and the bearing 5. Under the action of the spring 13, it is embedded in the groove of the threaded limiting sleeve 4, thereby limiting the threaded limiting sleeve 4.

[0030] Specifically, when installing the threaded limiting sleeve 4, the threaded limiting sleeve 4 is screwed inward along the thread of the roller 2. As the threaded limiting sleeve 4 moves, its inner end face will generate axial pressure on the locking block 11, forcing the locking block 11 to move into the bearing 5. The locking block 11 is connected to the annular limiting plate 12 and the sliding shaft 10 through a linkage structure. Therefore, the movement of the locking block 11 will drive the annular limiting plate 12 and the sliding shaft 10 to move synchronously. During this process, the annular limiting plate 12 compresses the spring 13, causing it to undergo elastic deformation and store elastic potential energy. When the threaded limiting sleeve 4 is screwed in place and the installation is completed, the spring 13 begins to release the stored elastic potential energy, pushing the locking block 11 outward through the annular limiting plate 12 and the sliding shaft 10 until one end of the locking block 11 is embedded in the preset groove inside the threaded limiting sleeve 4. This effectively prevents the threaded limiting sleeve 4 from falling off due to vibration and other factors during the operation of the chain roller, ensuring the integrity and stability of the chain roller structure.

[0031] Working principle: When the chain roller is needed, the roller body 1 will rotate on the outer wall of the roller 2. At this time, the rotation of the roller body 1 will drive the sliding ring 6 to slide inside the roller 2. Since there are multiple balls 8 inside the sliding ring 6, the friction between the sliding ring 6 and the roller 2 can be further reduced, improving stability. The limiting ring 7 can also prevent the sliding ring 6 from falling out of the roller 2, improving its sturdiness and durability. Finally, the threaded limiting sleeves 4 connected by threads at both ends of the roller 2 can further prevent the chain roller from falling out of the chain.

[0032] Furthermore, during the installation of the threaded limiting sleeve 4, the movement of the threaded limiting sleeve 4 will apply pressure to the locking block 11, causing the locking block 11 to move into the interior of the bearing 5. At the same time, the movement of the locking block 11 will also drive the annular limiting plate 12 and the sliding shaft 10 to move together. Thus, the movement of the annular limiting plate 12 will cause the spring 13 to contract. After the threaded limiting sleeve 4 is installed, the spring 13 will rebound, pushing one end of the locking block 11 back into the preset groove inside the threaded limiting sleeve 4, thus limiting the threaded limiting sleeve 4 and preventing it from falling off during use.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 robust and durable chain roller, comprising a roller body (1), characterized in that: The inner wall of the roller body (1) is slidably connected to a roller (2), both ends of the roller (2) are provided with external threads (3), both ends of the roller (2) are threadedly connected to threaded limiting sleeves (4) through external threads (3), a bearing (5) is provided on the outer wall of the roller (2) near the inner side of the roller (2), and sliding rings (6) are fixedly connected on both sides of the inner wall of the roller body (1), and a sliding component is provided inside the sliding ring (6); The sliding assembly includes a limiting ring (7) and a ball (8). The limiting ring (7) is fixedly connected to the inner wall of the sliding ring (6), and the ball (8) is rotatably connected to the inside of the sliding ring (6). Arc-shaped grooves (9) are provided on both sides of the inside of the roller (2).

2. The robust and durable chain roller according to claim 1, characterized in that: The bearing (5) is internally slidably connected to an annular limiting plate (12), and a reset component is provided on one side of the outer wall of the annular limiting plate (12). A locking block (11) is fixedly connected to the other side of the outer wall of the annular limiting plate (12).

3. The robust and durable chain roller according to claim 2, characterized in that: The reset assembly includes a slide shaft (10) and a spring (13). One end of the slide shaft (10) is fixedly connected to one side of the outer wall of the annular limiting plate (12), and the spring (13) is sleeved on the outer wall of the slide shaft (10).

4. The robust and durable chain roller according to claim 3, characterized in that: The outer wall of the sliding shaft (10) is slidably connected to the inside of the bearing (5), and the sliding shaft (10) is used to guide the annular limiting plate (12) and the spring (13).

5. The robust and durable chain roller according to claim 3, characterized in that: One end of the spring (13) is fixedly connected to one side of the outer wall of the annular limiting plate (12), and the other end of the spring (13) is fixedly connected to the inside of the bearing (5).

6. The robust and durable chain roller according to claim 2, characterized in that: The outer wall of the card block (11) is slidably connected to the inside of the threaded limiting sleeve (4) and the bearing (5).

7. The robust and durable chain roller according to claim 1, characterized in that: The external threads (3) at both ends of the roller (2) respectively match the internal threads of the two threaded limiting sleeves (4).

8. The robust and durable chain roller according to claim 1, characterized in that: The limiting ring (7) and the ball (8) are both slidably connected inside the arc-shaped groove (9) to limit the sliding ring (6).

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