High-stability heavy-load plate-and-bucket elevator chain wheel
By setting an anti-rotation block on the head of the fixing bolt and an anti-rotation component on the sprocket body, combined with a blocking component, the problem of loose fixing bolts is solved, the stability and reliability of the sprocket are improved, and the risk of equipment failure is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANXI KEYUAN CONVEYING MASCH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, fixing bolts are prone to loosening under heavy load and high vibration conditions, leading to sprocket connection failure and affecting the stability and lifespan of the hoist.
An anti-rotation stop is installed on the head of the fixing bolt, and an anti-rotation component and a blocking component are installed on the sprocket body. Through the cooperation of the anti-rotation stop and the anti-rotation baffle, friction is used to prevent the bolt from loosening and enhance stability.
It effectively prevents the fixing bolts from loosening due to vibration, improves the stability and reliability of the sprocket, reduces the risk of equipment failure, and extends the service life.
Smart Images

Figure CN224336400U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sprockets, and in particular to a high-stability heavy-duty plate chain bucket elevator sprocket. Background Technology
[0002] A bucket elevator is a continuous conveying device primarily used for vertically or inclinedly lifting bulk materials (such as ore, coal, cement, and grain). Its core structure includes a traction chain, buckets, drive sprockets, tension sprockets, and a casing. The sprocket is a key transmission component of the bucket elevator, responsible for driving the chain; its performance directly affects the stability, lifespan, and efficiency of the equipment. A sprocket typically consists of a sprocket body and sprocket teeth, which are mounted on the sprocket body with bolts to achieve power transmission and material lifting. However, in actual use, due to continuous vibration during operation, load variations, and environmental factors, the bolts can easily loosen or even fall off, leading to connection failure between the sprocket teeth and the sprocket body. This not only affects the normal operation of the elevator but may also cause equipment malfunctions, increasing maintenance costs and safety risks.
[0003] In existing technologies, although attempts have been made to address this problem by increasing bolt preload or using anti-loosening washers, these methods have limited effectiveness under heavy-load, high-vibration conditions. The bolt loosening problem remains unresolved, severely limiting the stability and service life of chain bucket elevators. Therefore, there is an urgent need for a highly stable, heavy-duty plate chain bucket elevator sprocket to prevent the fixing bolts from loosening due to vibration, thereby improving the reliability and durability of the equipment. Utility Model Content
[0004] The main objective of this invention is to provide a highly stable heavy-duty plate chain bucket elevator sprocket, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A high-stability heavy-duty plate chain bucket elevator sprocket includes a sprocket body. Sprocket teeth are fixedly installed on the sprocket body by fixing bolts. Several anti-rotation blocks are symmetrically fixedly installed at one end of the head of the fixing bolts. An anti-rotation assembly is fixedly installed at one end of the sprocket body. The anti-rotation assembly consists of a base block, a base plate, a fixed shaft, a rotating drum, and an anti-rotation baffle. There are two base plates, which are symmetrically fixedly installed at both ends of the base block. The fixed shaft is fixedly installed inside the base block. The rotating drum is rotatably installed on the fixed shaft. The anti-rotation baffle is fixedly installed on the outer wall of the rotating drum. The anti-rotation baffle is also embedded between adjacent anti-rotation blocks. A blocking assembly is movably installed on the anti-rotation baffle. The blocking assembly consists of a connecting rod, a stop post, and a handle. The stop post and the handle are respectively fixedly installed at both ends of the connecting rod.
[0007] Preferably, the base plate on the anti-rotation component is fixedly mounted on one end of the sprocket body by screws, and a connecting groove is provided on one end of the base block, and the fixed shaft is fixedly mounted in the connecting groove.
[0008] Preferably, the rotating drum is rotatably mounted in a connecting groove opened at one end of the base block.
[0009] Preferably, the inner end of the anti-rotation baffle on the anti-rotation component is provided with a storage groove, and the outer end of the anti-rotation baffle is provided with a through hole, and the storage groove and the through hole are interconnected.
[0010] Preferably, the connecting rod on the blocking assembly passes through the through hole at the outer end of the anti-rotation baffle, the handle is located on the outside of the anti-rotation baffle, and the stop post is located on the inside of the anti-rotation baffle.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] By fixing an anti-rotation block at one end of the fixed bolt head and setting an anti-rotation component on the sprocket body, the anti-rotation component and the anti-rotation block cooperate to effectively prevent the fixed bolt from rotating and loosening due to continuous vibration during the operation of the bucket elevator, thereby improving the stability of the sprocket. By setting a blocking component on the anti-rotation component, the blocking component contacts the side of the fixed bolt head away from the base block, which can block and limit the anti-rotation baffle, thereby reducing the probability of the anti-rotation baffle rotating unexpectedly and detaching from the two adjacent anti-rotation blocks. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 For the present utility model Figure 1 A magnified view of point A;
[0015] Figure 3 This is a schematic diagram showing the positional relationship between the fixing bolt, anti-rotation block, anti-rotation component, and blocking component of this utility model.
[0016] Figure 4 This is an exploded view of the anti-rotation component of this utility model;
[0017] Figure 5 This is a schematic diagram showing the positional relationship between the blocking component and the anti-rotation baffle of this utility model.
[0018] In the diagram: 1. Sprocket body; 2. Sprocket teeth; 3. Fixing bolt; 4. Anti-rotation block; 5. Anti-rotation component; 6. Blocking component; 7. Base block; 8. Base plate; 9. Connecting groove; 10. Fixing shaft; 11. Rotary cylinder; 12. Anti-rotation baffle; 13. Storage groove; 14. Through hole; 15. Connecting rod; 16. Stop post; 17. Handle. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] Please see Figures 1-5 As shown, a high-stability heavy-duty plate chain bucket elevator sprocket includes a sprocket body 1. Sprocket teeth 2 are fixedly mounted on the sprocket body 1 via fixing bolts 3. Several anti-rotation blocks 4 are symmetrically fixedly mounted on one end of the fixing bolts 3. An anti-rotation assembly 5 is fixedly mounted on one end of the sprocket body 1. The anti-rotation assembly 5 consists of a base block 7, a base plate 8, a fixed shaft 10, a rotating drum 11, and an anti-rotation baffle 12. Two base plates 8 are symmetrically fixedly mounted at both ends of the base block 7. The fixed shaft 10 is fixedly mounted inside the base block 7. The rotating drum 11 is rotatably mounted on the fixed shaft 10. The anti-rotation baffle 12 is fixedly mounted on the outer wall of the rotating drum 11, and the anti-rotation baffle 12 is simultaneously embedded between adjacent anti-rotation blocks 4. A blocking assembly 6 is movably mounted on the anti-rotation baffle 12. The blocking assembly 6 consists of a series of components... The assembly consists of a rod 15, a stop post 16, and a handle 17. The stop post 16 and the handle 17 are fixedly installed at both ends of the connecting rod 15. Each sprocket tooth 2 is fixedly installed on the sprocket body 1 by two fixing bolts 3. When assembling the sprocket tooth 2 onto the sprocket body 1, firstly, the sprocket body 1 and the sprocket tooth 2 are fixedly connected by the fixing bolts 3, while ensuring that the channels formed by the anti-rotation blocks 4 at the heads of the two adjacent fixing bolts 3 are aligned. Then, the rotating cylinder 11 is rotated around the fixed shaft 10, so that the anti-rotation baffle 12 finally contacts the heads of the two adjacent fixing bolts 3, and the anti-rotation baffle 12 is embedded in the channel formed by the two adjacent anti-rotation blocks 4. Finally, the stop post 16 is pushed by the handle 17, so that the stop post 16 is completely removed from the storage slot 13, and the stop post 16 is as shown in the picture. Figure 3 The anti-rotation baffle 12 is limited by contact between the head of one of the fixing bolts 3 and the side away from the base block 7. In use, the cooperation between the anti-rotation block 4 and the anti-rotation baffle 12 can prevent the fixing bolt 3 from loosening, and the blocking component 6 further ensures the stability of the anti-rotation baffle 12. When it is necessary to remove the fixing bolt 3, the baffle 16 can be pulled by the handle 17 first, so that the baffle 16 is completely moved into the storage slot 13. Then, the rotating cylinder 11, the anti-rotation baffle 12 and the blocking component 6 are rotated about the fixed shaft 10, so that the anti-rotation baffle 12 is moved out from between the two adjacent anti-rotation blocks 4. Then the fixing bolt 3 can be removed by tools.
[0021] Specifically, the base plate 8 on the anti-rotation component 5 is fixedly installed on one end of the sprocket body 1 by screws. A connecting groove 9 is opened at one end of the base block 7, and the fixed shaft 10 is fixedly installed in the connecting groove 9. The rotating cylinder 11 is rotatably installed in the connecting groove 9 opened at one end of the base block 7. The inner end of the anti-rotation baffle 12 on the anti-rotation component 5 is provided with a storage groove 13, and the outer end of the anti-rotation baffle 12 is provided with a through hole 14. The storage groove 13 and the through hole 14 are interconnected. When in use, the anti-rotation baffle 12 is embedded between two adjacent anti-rotation blocks 4. Its width matches the gap of the anti-rotation blocks 4 to ensure a tight fit, so that it forms a certain pressing force with the contact surface of the anti-rotation blocks 4, thereby generating friction and preventing the anti-rotation baffle 12 from accidentally falling off due to vibration.
[0022] Specifically, the connecting rod 15 on the blocking assembly 6 passes through the through hole 14 opened at the outer end of the anti-rotation baffle 12, the handle 17 is located on the outer side of the anti-rotation baffle 12, and the stop post 16 is located on the inner side of the anti-rotation baffle 12. When in use, the stop post 16 abuts against the side of the head of the fixing bolt 3, forming a certain contact pressure, thereby generating friction. This cooperation method further prevents the anti-rotation baffle 12 from accidentally disengaging from the gap of the anti-rotation block 4, ensuring the stability and reliability of the overall structure.
[0023] Finally, by fixing an anti-rotation block 4 at one end of the head of the fixing bolt 3 and setting an anti-rotation component 5 on the sprocket body 1, the anti-rotation component 5 and the anti-rotation block 4 cooperate to effectively prevent the fixing bolt 3 from rotating and loosening due to continuous vibration during the operation of the bucket elevator, thereby improving the stability of the sprocket. By setting a blocking component 6 on the anti-rotation component 5, the blocking component 6 contacts the side of the head of the fixing bolt 3 away from the base block 7, which can block and limit the anti-rotation baffle 12, thereby reducing the probability of the anti-rotation baffle 12 rotating unexpectedly and coming off between the two adjacent anti-rotation blocks 4.
[0024] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A high-stability heavy-duty plate chain bucket elevator sprocket, comprising a sprocket body (1), wherein sprocket teeth (2) are fixedly mounted on the sprocket body (1) by fixing bolts (3), characterized in that: A number of anti-rotation blocks (4) are symmetrically fixed at one end of the head of the fixing bolt (3). An anti-rotation component (5) is fixedly installed at one end of the sprocket body (1). The anti-rotation component (5) consists of a base block (7), a base plate (8), a fixed shaft (10), a rotating cylinder (11), and an anti-rotation baffle (12). There are two base plates (8) that are symmetrically fixed at both ends of the base block (7). The fixed shaft (10) is fixedly installed inside the base block (7). The rotating cylinder (11) is rotatably installed on the fixed shaft (10). The anti-rotation baffle (12) is fixedly installed on the outer wall of the rotating cylinder (11). The anti-rotation baffle (12) is simultaneously embedded between adjacent anti-rotation blocks (4). A blocking component (6) is movably installed on the anti-rotation baffle (12). The blocking component (6) consists of a connecting rod (15), a stop post (16), and a handle (17). The stop post (16) and the handle (17) are respectively fixedly installed at both ends of the connecting rod (15).
2. The high-stability heavy-duty plate chain bucket elevator sprocket according to claim 1, characterized in that: The base plate (8) on the anti-rotation component (5) is fixedly installed on one end of the sprocket body (1) by screws. A connecting groove (9) is opened on one end of the base block (7), and the fixed shaft (10) is fixedly installed in the connecting groove (9).
3. The high-stability heavy-duty plate chain bucket elevator sprocket according to claim 2, characterized in that: The rotating drum (11) is rotatably installed in the connecting groove (9) opened at one end of the base block (7).
4. The high-stability heavy-duty plate chain bucket elevator sprocket according to claim 3, characterized in that: The anti-rotation baffle (12) on the anti-rotation component (5) has a storage groove (13) at its inner end and a through hole (14) at its outer end. The storage groove (13) and the through hole (14) are connected to each other.
5. The high-stability heavy-duty plate chain bucket elevator sprocket according to claim 4, characterized in that: The connecting rod (15) on the blocking assembly (6) passes through the through hole (14) opened at the outer end of the anti-rotation baffle (12), the handle (17) is located on the outside of the anti-rotation baffle (12), and the stop post (16) is located on the inside of the anti-rotation baffle (12).