Chain wheel
By using a buffer spring in the sprocket to stabilize the secondary sprocket, the loosening and wear problems caused by shaking the right part of the sprocket is solved, and the stability and service life of the sprocket are improved.
Patent Information
- Application Number
- CN202421797176.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The right part of the sprocket may sway, causing looseness, and the width of the left part of the sprocket and the right part of the sprocket becomes larger, thereby aggravating wear between the right part of the sprocket and the chain.
A sprocket is designed, including a hollow shaft, a main sprocket, a secondary sprocket, a buffer spring and a nut. The buffer spring is arranged on the hollow shaft, and the two ends are in contact with the main sprocket and a secondary sprocket respectively. The buffer spring prevents the secondary sprocket from moving due to shaking.
The sprocket is pushed against the secondary sprocket by a buffer spring to avoid shaking and loosening, preventing the sprocket width from increasing, and reducing wear between the sprocket and the chain.
Smart Images
Figure CN222823686U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sprocket wheels, in particular to a sprocket wheel. Background Art
[0002] A sprocket is a mechanical component with cog-type sprocket teeth. Its principle is to use the characteristics of sprockets and gears to transfer energy from one drive device to another. It is widely used in mechanical transmission in wood processing, agricultural machinery, food processing and other industries.
[0003] The sprocket is mainly composed of a left sprocket part, a right sprocket part, a thread, an axial hole and a keyway. The left sprocket part and the right sprocket part are connected by threads, the left sprocket part is sleeved on the rotating shaft through the axial hole, and the left sprocket part is connected to the rotating shaft through the keyway, and the chain is wound around the left sprocket part and the right sprocket part for chain transmission.
[0004] The left part of the sprocket and the right part of the sprocket are connected by threads. During the chain transmission process, the right part of the sprocket may shake, causing the right part of the sprocket to loosen, thereby causing the width of the left part of the sprocket and the right part of the sprocket to increase, and aggravating the wear between the right part of the sprocket and the chain. Utility Model Content
[0005] In order to overcome the disadvantage that the right part of the sprocket may shake, causing the right part of the sprocket to loosen, thereby causing the width of the left part and the right part of the sprocket to increase, and causing the wear between the right part of the sprocket and the chain to increase, the utility model provides a sprocket.
[0006] The technical implementation scheme of the utility model is: a sprocket, comprising: a hollow shaft and a main sprocket, the main sprocket is connected to the right end of the hollow shaft; a secondary sprocket, the secondary sprocket is slidably connected to the hollow shaft; a buffer spring, the buffer spring is sleeved on the hollow shaft, and the two ends of the buffer spring are respectively in contact with the main sprocket and the secondary sprocket; a nut, the nut is connected to the hollow shaft through a thread.
[0007] More preferably, it further comprises: screws, there are three screws, all of which are connected to the main sprocket through threads, and the screws are slidably connected to the auxiliary sprocket.
[0008] More preferably, the annular groove is formed on the secondary sprocket, and the buffer spring is located in the annular groove.
[0009] More preferably, the keyway is opened in the hollow shaft.
[0010] More preferably, it further comprises: an annular slide rail connected to the nut; a sliding ring slidably connected to the annular slide rail, and the sliding ring is connected to the secondary sprocket.
[0011] More preferably, it further comprises: a shift block, the number of the shift blocks is six, and the six shift blocks are all connected to the nut.
[0012] More preferably, the annular slide rail and the slide ring are connected by ball sliding.
[0013] More preferably, the left end of the screw is provided with a chamfer.
[0014] The beneficial effect of the utility model is that the utility model can support the secondary sprocket through the buffer spring to prevent the secondary sprocket from moving due to shaking, thereby preventing the width of the secondary sprocket and the main sprocket from increasing, and further preventing the wear between the secondary sprocket and the chain from increasing. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0016] Figure 2 It is the front view of the utility model.
[0017] Figure 3 It is the right view of the utility model.
[0018] Figure 4 This is an explosion diagram of the utility model.
[0019] Figure 5 It is a three-dimensional structural schematic diagram of the buffer spring and the annular groove of the utility model.
[0020] The markings of the components in the accompanying drawings are as follows: 1: hollow shaft, 2: main sprocket, 3: secondary sprocket, 4: buffer spring, 5: nut, 6: screw, 7: annular groove, 8: keyway, 9: annular slide rail, 10: sliding ring, 11: shift block. DETAILED DESCRIPTION
[0021] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.
[0022] like Figure 1-Figure 5 As shown, a sprocket includes a hollow shaft 1, a main sprocket 2, a secondary sprocket 3, a buffer spring 4 and a nut 5. A key groove 8 is opened on the inner rear side of the hollow shaft 1, the main sprocket 2 is connected to the right end of the hollow shaft 1, and the secondary sprocket 3 is slidably connected to the hollow shaft 1. A buffer spring 4 is sleeved on the hollow shaft 1, and the two ends of the buffer spring 4 are in contact with the main sprocket 2 and the secondary sprocket 3 respectively. An annular groove 7 is opened on the right side of the secondary sprocket 3, and the buffer spring 4 is located in the annular groove 7. The nut 5 is connected to the hollow shaft 1 through a thread.
[0023] like Figure 2 and Figure 4As shown, screws 6 are also included. Screws 6 are evenly spaced circumferentially connected to the main sprocket 2 through threads. The screws 6 are slidably connected to the secondary sprocket 3. The left end of the screw 6 is chamfered so that the screw 6 can be better inserted into the secondary sprocket 3.
[0024] like Figure 2 and Figure 4 As shown, an annular slide rail 9 and a sliding ring 10 are also included. The annular slide rail 9 is connected to the right side of the nut 5. The sliding ring 10 is slidably connected to the right side of the annular slide rail 9. The right side of the sliding ring 10 is connected to the left side of the secondary sprocket 3. The annular slide rail 9 and the sliding ring 10 are connected by ball sliding, which has smaller friction and makes the nut 5 rotate more smoothly.
[0025] like Figure 1 and Figure 2 As shown, a shift block 11 is also included, and six shift blocks 11 are connected to the nut 5 at even intervals in the circumferential direction.
[0026] The hollow shaft 1 is mounted on the rotating shaft through the keyway 8, and then the nut 5 is rotated to move rightward through the shifting block 11. The nut 5 drives the annular slide rail 9 and the sliding ring 10 to move rightward, thereby driving the secondary sprocket 3 to move rightward, reducing the distance between the secondary sprocket 3 and the main sprocket 2. The buffer spring 4 is compressed, and the annular groove 7 can accommodate the buffer spring 4, thereby minimizing the distance between the secondary sprocket 3 and the main sprocket 2 to the maximum extent. The nut 5 pushes the secondary sprocket 3 to move rightward through the annular slide rail 9 and the sliding ring 10, which can avoid friction between the nut 5 and the secondary sprocket 3, thereby avoiding wear of the nut 5 and the secondary sprocket 3. The nut is rotated by the shifting block 11 5 moves to the left, the nut 5 drives the annular slide rail 9 and the sliding ring 10 to move to the left, thereby driving the secondary sprocket 3 to move to the left, increasing the distance between the secondary sprocket 3 and the main sprocket 2, and the buffer spring 4 returns to its original state. The distance between the secondary sprocket 3 and the main sprocket 2 can be adjusted according to actual conditions to adapt to chains of different specifications. The screw 6 is inserted into the secondary sprocket 3 to align the main sprocket 2 with the secondary sprocket 3. During the chain transmission process, the buffer spring 4 can support the secondary sprocket 3 to prevent the secondary sprocket 3 from moving due to shaking, thereby preventing the width of the secondary sprocket 3 and the main sprocket 2 from becoming larger, and further preventing the wear between the secondary sprocket 3 and the chain from increasing.
[0027] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.
Claims
1. A sprocket, characterized in that it comprises: A hollow shaft (1) and a main sprocket (2), wherein the main sprocket (2) is connected to the right end of the hollow shaft (1); A secondary sprocket (3), the secondary sprocket (3) is slidably connected to the hollow shaft (1); A buffer spring (4), wherein the buffer spring (4) is sleeved on the hollow shaft (1), and two ends of the buffer spring (4) are respectively in contact with the main sprocket (2) and the auxiliary sprocket (3); The nut (5) is connected to the hollow shaft (1) through threads.
2. A sprocket as claimed in claim 1, characterized in that include: The screws (6) are three in number, and the three screws (6) are all connected to the main sprocket (2) through threads, and the screws (6) and the secondary sprocket (3) are slidably connected.
3. A sprocket as claimed in claim 2, characterized in that: An annular groove (7) is formed on the secondary sprocket (3), and the buffer spring (4) is located in the annular groove (7).
4. A sprocket as claimed in claim 3, characterized in that: A keyway (8) is provided in the hollow shaft (1).
5. A sprocket as claimed in claim 4, characterized in that include: An annular slide rail (9), the annular slide rail (9) is connected to the nut (5); A sliding ring (10) is slidably connected to the annular slide rail (9), and the sliding ring (10) is connected to the secondary sprocket (3).
6. A sprocket as claimed in claim 5, characterized in that include: The shifting blocks (11) are six in number and all of the six shifting blocks (11) are connected to the nut (5).
7. A sprocket according to claim 6, characterized in that: The annular slide rail (9) and the slide ring (10) are connected by ball sliding.
8. A sprocket according to claim 7, characterized in that: The left end of the screw (6) is provided with a chamfer.