Chain wheel convenient to disassemble, assemble and maintain

Abstract

The utility model discloses a chain wheel convenient to disassemble, assemble and maintain, which belongs to the field of chain wheels and comprises a first chain wheel main body and a second chain wheel main body, and transmission wheel teeth are arranged on the first chain wheel main body and the second chain wheel main body. The assembly positioning grooves are formed in the first chain wheel body and the second chain wheel body and used in cooperation with the positioning assembly, positioning is conducted in an inserting connection mode, the positioning accuracy can be guaranteed, the positions of transmission wheel teeth can be effectively aligned, and subsequent accurate connection of a chain and the chain wheel is guaranteed; a detachable rubber column, an abutting spring and an abutting block are arranged in the positioning assembly, when the positioning assembly is used for positioning connection, the abutting spring and the abutting block can exert the abutting effect, and when the positioning assembly is used in cooperation with a connecting bolt and a locking nut, the chain is prevented from being abraded greatly. The stability of the chain wheel bodies after assembly can be improved, and meanwhile, after the connecting bolts are disassembled, the two chain wheel bodies can be quickly opened under the action of the abutting springs.

Description

Technical Field

[0001] This utility model relates to the field of sprockets, and in particular to a sprocket that is easy to disassemble and maintain. Background Technology

[0002] Chain drive is a widely used mechanical transmission and one of the main forms of power transmission. It consists of a chain and driving and driven sprockets. The sprockets have specially shaped transmission teeth, and power is transmitted through the cooperation of the sprocket teeth and chain links. Chain drives have many advantages: compared to belt drives, there is no elastic slippage or slippage; the average transmission ratio is accurate; operation is reliable; and efficiency is high. They can transmit large amounts of power, have strong overload capacity, and have smaller transmission dimensions under the same working conditions. They require less tension and exert less pressure on the shaft. They can operate in harsh environments such as high temperature, humidity, dust, and pollution. To facilitate disassembly and maintenance, split-type sprockets are used, allowing for quick and easy installation and removal.

[0003] Existing patent CN215596350U discloses a "Sprocket for Easy Disassembly and Maintenance." This patent utilizes an assembly positioning groove and a positioning block to quickly align the transmission gear teeth, resulting in high positioning efficiency. However, in this patent, the assembly positioning groove and positioning block use a sliding snap-fit ​​method for positioning and alignment. When bolting is applied after alignment, sliding displacement can easily occur, causing misalignment of the transmission gear teeth. This affects the normal connection and transmission between the chain and the sprocket, and after prolonged use, it can lead to excessive chain wear and rapid damage, increasing operating costs to some extent. Utility Model Content

[0004] The main purpose of this invention is to provide a sprocket that is easy to disassemble and maintain, 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 sprocket that is easy to disassemble and maintain includes a first sprocket body and a second sprocket body. The first sprocket body and the second sprocket body are provided with transmission gear teeth. The first sprocket body is provided with a first mounting sleeve, and the second sprocket body is provided with a second mounting sleeve. The first sprocket body and the second sprocket body are provided with assembly positioning grooves, and positioning components are provided in the assembly positioning grooves.

[0007] Preferably, the positioning component includes a positioning block, a circular hole, a snap-fit ​​hole, and a rubber post. The circular hole is formed on the positioning block, the snap-fit ​​hole is disposed in the circular hole on the positioning block, and the rubber post is snapped into the inside of the snap-fit ​​hole.

[0008] Preferably, the positioning component further includes a clamping spring, a clamping block, and a through hole. The clamping spring is fixedly connected to the clamping block, and the end of the clamping spring is fixedly connected to the rubber post. The through hole is formed on the clamping block.

[0009] Preferably, the first mounting sleeve and the second mounting sleeve are connected to a mounting connecting block, and the mounting connecting block is provided with a mounting through hole. A connecting bolt is provided in the mounting through hole of the mounting connecting block, and a locking nut is provided at the end of the connecting bolt.

[0010] Preferably, the second sprocket body and the second mounting sleeve are provided with connecting keyways.

[0011] Compared with the prior art, this utility model has the following beneficial effects: This sprocket, which is easy to disassemble and maintain, has assembly and positioning grooves on the first and second sprocket bodies. Used in conjunction with a positioning component, it employs a plug-in positioning method to ensure positioning accuracy, prevent displacement during subsequent tightening, effectively align the position of the transmission gear teeth, ensure precise connection between the chain and sprocket, eliminate excessive chain wear caused by uneven transmission gear teeth, extend chain life, and reduce operating costs. The positioning component includes detachable rubber pillars, clamping springs, and clamping blocks. When using the positioning component for positioning and connection, the clamping springs and clamping blocks apply a clamping action. Used in conjunction with connecting bolts and locking nuts, this increases the stability of the sprocket body after assembly. Furthermore, after removing the connecting bolts, the clamping springs allow for quick opening of the two sprocket bodies, facilitating disassembly. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the disassembled sprocket of this utility model;

[0014] Figure 3 This is a schematic diagram of the positioning component of this utility model.

[0015] In the diagram: 1. First sprocket body; 2. Second sprocket body; 3. Transmission gear teeth; 4. First mounting sleeve; 5. Second mounting sleeve; 6. Mounting connecting block; 7. Mounting through hole; 8. Assembly positioning groove; 9. Positioning assembly; 901. Positioning block; 902. Round hole; 903. Snap-fit ​​hole; 904. Rubber post; 905. Clamping spring; 906. Clamping block; 907. Through hole; 10. Connecting bolt; 11. Locking nut; 12. Connecting keyway. Detailed Implementation

[0016] 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.

[0017] like Figures 1-3 As shown, a sprocket that is easy to disassemble and maintain includes a first sprocket body 1 and a second sprocket body 2. Both the first sprocket body 1 and the second sprocket body 2 are provided with transmission gear teeth 3. The first sprocket body 1 is provided with a first mounting sleeve 4, and the second sprocket body 2 is provided with a second mounting sleeve 5. Both the first sprocket body 1 and the second sprocket body 2 are provided with assembly positioning grooves 8, and positioning components 9 are provided within the assembly positioning grooves 8. Mounting connecting blocks 6 are connected to the first mounting sleeve 4 and the second mounting sleeve 5, and mounting connecting blocks 6 are provided with mounting through holes 7. Connecting bolts 10 are provided in the mounting through holes 7 on the mounting connecting blocks 6, and locking nuts 11 are provided at the ends of the connecting bolts 10. Connecting keyways 12 are formed on the second sprocket body 2 and the second mounting sleeve 5.

[0018] The transmission gear teeth 3 are arranged in a circular array on the first sprocket body 1 and the second sprocket body 2, ensuring smooth transmission. Using the first mounting sleeve 4 and the second mounting sleeve 5, along with the mounting connecting block 6, connecting bolt 10, and locking nut 11, they facilitate easy disassembly and maintenance, offering high operational convenience. Two locking nuts 11 are provided at the end of the connecting bolt 10, providing a locking and anti-loosening effect, preventing the locking nuts 11 from loosening due to sprocket rotation, ensuring connection stability, and resulting in a well-performing spliced ​​sprocket. The connecting keyway 12 ensures a stable connection between the entire sprocket and the rotating shaft, guaranteeing transmission stability.

[0019] When installing the sprocket, the second sprocket body 2 is set onto the rotating shaft through the second mounting sleeve 5, ensuring that the spline in the keyway on the drive shaft is aligned with the connecting keyway 12 on the second sprocket body 2. A positioning component 9 is set in the assembly positioning groove 8 on the second sprocket body 2. Then, the first sprocket body 1 is set onto the drive shaft through the first mounting sleeve 4. During this process, ensure that the first mounting sleeve 4 and the second mounting sleeve 5 are aligned and joined together. The other half of the positioning component 9 is connected to the assembly positioning groove 8 on the first sprocket body 1. At the same time, the mounting connecting blocks 6 on the first mounting sleeve 4 and the second mounting sleeve 5 correspond, and the mounting through holes 7 are aligned. The connecting bolt 10 is passed through the mounting through hole 7 on the mounting connecting block 6. A lock nut 11 is set at the end of the connecting bolt 10, thereby completing the sprocket installation.

[0020] During sprocket operation, the sprocket rotates with the drive shaft. The first sprocket body 1 and the second sprocket body 2 rotate with the transmission gear teeth 3, which drive the chain to move, achieving chain drive. During sprocket rotation, the locking effect of the positioning component 9, in conjunction with the connecting bolt 10, increases the sprocket's installation stability. When sprocket disassembly and maintenance are required, remove the locking nut 11 at the end of the connecting bolt 10, separate the first sprocket body 1 and the second sprocket body 2, and remove them from the drive shaft for inspection. After maintenance, reinstall the sprocket as described above for continued use.

[0021] According to the above implementation scheme, the positioning component 9 includes a positioning block 901, a circular hole 902, a snap-fit ​​hole 903, and a rubber post 904. The circular hole 902 is formed on the positioning block 901, the snap-fit ​​hole 903 is disposed in the circular hole 902 on the positioning block 901, and the rubber post 904 is snapped into the inside of the snap-fit ​​hole 903. The positioning component 9 also includes a clamping spring 905, a clamping block 906, and a through hole 907. The clamping spring 905 is fixedly connected to the clamping block 906, and the end of the clamping spring 905 is fixedly connected to the rubber post 904. The through hole 907 is formed on the clamping block 906.

[0022] Before installing the sprocket, the positioning component 9 is assembled first. The rubber post 904 is placed in the round hole 902 on the positioning block 901. The push rod passes through the through hole 907 on the clamping block 906 and contacts the rubber post 904, applying a pushing force to the rubber post 904 so that the rubber post 904 moves to the snap-fit ​​hole 903 for snap-fit. At this time, the clamping spring 905 is located in the round hole 902, and the clamping block 906 is fixed at the end of the clamping spring 905. When installing the sprockets, after the second sprocket body 2 is placed on the drive shaft, the positioning block 901 is inserted into the assembly positioning groove 8 on the second sprocket body 2. When merging the two sprocket bodies, the other half of the positioning block 901 is inserted into the assembly positioning groove 8 on the first sprocket body 1. After the sprocket bodies are merged, the clamping block 906 moves into the round hole 902, and the clamping spring 905 is in a compressed state. Under the action of the clamping spring 905, the clamping block 906 applies a clamping force to the inner wall of the assembly positioning groove 8, which, in conjunction with the connecting bolt 10, ensures a stable connection of the sprocket bodies. When disassembling the sprocket bodies, the two sprocket bodies can be quickly opened under the action of the clamping spring 905, facilitating the disassembly process.

[0023] It should be noted that by creating mounting and positioning grooves 8 on the first sprocket body 1 and the second sprocket body 2, and using the positioning component 9, positioning can be achieved through a plug-in method. This ensures positioning accuracy, prevents displacement during subsequent tightening, effectively aligns the position of the transmission gear teeth 3, ensures precise connection between the chain and sprocket, and eliminates excessive chain wear caused by uneven transmission gear teeth 3, thus extending the chain's service life and reducing operating costs. The positioning component 9 includes detachable rubber posts 904, clamping springs 905, and clamping blocks 906. When using the positioning component 9 for positioning and connection, the clamping springs 905 and clamping blocks 906 apply a clamping action. Combined with the connecting bolts 10 and locking nuts 11, this increases the stability of the sprocket bodies after assembly. Furthermore, after removing the connecting bolts 10, the clamping springs 905 allow for quick opening of the two sprocket bodies, facilitating disassembly. The rubber posts 904 allow for quick disassembly and installation, and facilitate the replacement of the clamping springs 905.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sprocket facilitating easy disassembly and repair, comprising a first sprocket body (1) and a second sprocket body (2), said first sprocket body (1) and second sprocket body (2) being provided with drive teeth (3), characterized in that: The first sprocket body (1) is provided with a first mounting sleeve (4), the second sprocket body (2) is provided with a second mounting sleeve (5), the first sprocket body (1) and the second sprocket body (2) are provided with an assembly positioning groove (8), and the assembly positioning groove (8) is provided with a positioning assembly (9); the positioning assembly (9) comprises a positioning block (901), a circular hole (902), a clamping hole (903) and a rubber column (904); the circular hole (902) is formed in the positioning block (901); the clamping hole (903) is arranged in the circular hole (902) of the positioning block (901); the rubber column (904) is clamped in the clamping hole (903); the positioning assembly (9) further comprises a pressing spring (905), a pressing block (906) and a through hole (907); the pressing spring (905) is fixedly connected with the pressing block (906); the end of the pressing spring (905) is fixedly connected with the rubber column (904); and the through hole (907) is formed in the pressing block (906).

2. The sprocket of claim 1, wherein: The first mounting sleeve (4) and the second mounting sleeve (5) are connected with a mounting connecting block (6), and the mounting connecting block (6) is provided with a mounting through hole (7); the mounting through hole (7) of the mounting connecting block (6) is provided with a connecting bolt (10), and the end of the connecting bolt (10) is provided with a locking nut (11).

3. The sprocket of claim 2, wherein: The second sprocket body (2) and the second mounting sleeve (5) are provided with a connecting key groove (12).

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