Camshaft damping belt wheel for vehicle
By designing a structure and reinforcement strip for easy disassembly in the automotive camshaft shock absorber, the problem of reduced effect and inconvenient replacement of existing shock absorber wheels in high temperature environments is solved, achieving more efficient replacement and longer service life.
Patent Information
- Application Number
- CN202421727661.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In the high temperature and frequent use environment, the shock absorbing rubber effect is reduced, and the pulley structure is not easy to disassemble, resulting in inconvenient replacement of shock absorbing rubber.
A vehicle camshaft shock absorbing pulley is designed. By setting up positioning blocks, limit blocks, mounting shells, stop blocks, clamps and other structures, the shock absorbing pulleys are easy to disassemble, and the overall strength is improved through arc-shaped reinforcement strips and reinforcement blocks.
The rapid disassembly and replacement of shock absorbing pulleys is achieved, the replacement efficiency is improved, and the overall strength and service life of shock absorbing pulleys are improved through the reinforcement structure.
Smart Images
Figure CN222836207U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock-absorbing pulleys, in particular to a shock-absorbing pulley for a camshaft of a vehicle. Background Art
[0002] The camshaft is a component in a piston engine, and its function is to control the opening and closing of the valves. Although the speed of the camshaft in a four-stroke engine is half that of the crankshaft (in a two-stroke engine, the speed of the camshaft is the same as the crankshaft), its speed is usually still very high and it needs to withstand a large torque. Therefore, the design has very high requirements for the strength and support of the camshaft, and its material is generally high-quality alloy steel or alloy steel. Since the movement of the valves is related to the power and operating characteristics of an engine, the camshaft design occupies a very important position in the design process of the engine. The camshaft needs to rotate with the crankshaft during use, so that the crankshaft provides power to the camshaft and the camshaft controls the valves to cooperate with the cylinders on the crankshaft. Therefore, pulleys and belts are needed to connect the crankshaft and the camshaft together, and transmit the power of the crankshaft to the camshaft.
[0003] Since the engine has a large torque during movement, especially when starting and stopping, the pulley on the camshaft is subjected to high torque and vibration forces. In order to increase the service life of the pulley, the pulley is usually divided into an inner and outer part, and rubber is filled between the two parts. When the pulley rotates, power is transmitted between the outer and inner wheels through the rubber, and the rubber is used for buffering to achieve a shock-absorbing effect.
[0004] Shock-absorbing pulleys usually use shock-absorbing rubber for shock absorption, but the rubber is easily reduced in high temperature and frequent use environment, while the rest of the shock-absorbing pulley structure is still within its service life and the pulley is not easy to disassemble, which makes it inconvenient to replace the shock-absorbing rubber in the shock-absorbing pulley. Therefore, we propose a camshaft shock-absorbing pulley for a vehicle to solve the above problem. Utility Model Content
[0005] The purpose of the utility model is to solve the disadvantages in the prior art that the shock-absorbing pulley usually uses shock-absorbing rubber for shock absorption, but the rubber is easily reduced in effect under high temperature and frequent use environment, while the remaining structure of the shock-absorbing pulley is still within its service life and the pulley is not easy to disassemble, resulting in inconvenience when the shock-absorbing rubber in the shock-absorbing pulley needs to be replaced, and a vehicle camshaft shock-absorbing pulley is proposed.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A vehicle camshaft shock-absorbing pulley is designed, comprising an outer wheel and a mounting wheel. A connecting ring is provided on the outer side of the mounting wheel, a plurality of connecting rods are fixed on the outer side of the connecting ring, and the connecting rods are fixedly connected to the inner side of the outer wheel. A plurality of limit strips A are fixed on the inner side of the connecting ring, and a plurality of limit strips B are fixed on the inner side of the mounting wheel. A shock-absorbing rubber is provided on the outer side of the limit strip A, and the shock-absorbing rubber is fixedly connected to the limit strip B and the outer side of the mounting wheel. A stop ring is provided on the rear side of the mounting wheel, and a limit ring is fixed on the front side of the mounting wheel. The stop ring is fixedly connected to the inner side of the connecting ring and the rear side of the limit strip A, and the limit ring is fixedly connected to the front side of the limit strip B. A fixing structure is provided between the outer side of the connecting ring and the limit ring.
[0008] Preferably, the limiting strips A and B are of equal length and are positioned in an alternating manner.
[0009] Preferably, a plurality of arc-shaped reinforcement strips A are fixed on the inner side of the outer wheel, a plurality of arc-shaped reinforcement strips B are fixed on the outer side of the connecting ring, reinforcement blocks are fixed at both ends of the inner side of the arc-shaped reinforcement strip A and both ends of the outer side of the arc-shaped reinforcement strip B, and the reinforcement blocks, the arc-shaped reinforcement strips A and the arc-shaped reinforcement strips B are all fixedly connected to the connecting rod.
[0010] Preferably, a groove is provided on the outer side of the outer wheel, and a plurality of teeth are evenly fixed in the groove.
[0011] Preferably, the fixing structure includes four positioning blocks A, four through holes are provided at the front end of the outer side of the connecting ring, four positioning grooves are provided at the outer side of the limiting ring, the positioning block A can slide inside the through holes and the positioning grooves, a through hole A is provided on the front side of the positioning block A, and a limiting block is provided on the rear side, a mounting shell is fixed on the rear side of the limiting block, and a through hole B is provided on the front side, the limiting block and the mounting shell are fixedly connected to the outer side of the connecting ring, a stop block is sliding on the inner side of the mounting shell, a positioning block B is fixed on the front side of the stop block, the positioning block B slides inside the through holes A and the through holes B, a limiting groove A is provided on the side of the mounting shell away from the connecting ring, a limiting groove B is provided on the side of the stop block away from the connecting ring, a clamp is provided on the outer side of the connecting ring, and the clamp can rotate inside the limiting grooves A and B.
[0012] Preferably, a slide groove is provided on the side of the mounting shell away from the connecting ring, and the slide groove intersects with the limit groove A vertically. Four auxiliary blocks are provided on the front side of the clamp, and the auxiliary blocks are fixedly connected to the stop blocks and can slide inside the slide groove.
[0013] Preferably, the front side of the positioning block B is provided with a chamfer.
[0014] The utility model provides a vehicle camshaft damping pulley, which has the following beneficial effects:
[0015] 1. By setting the positioning block A, the limit block, the mounting shell, the stop block, the positioning block B, the clamp and the auxiliary block, the shock-absorbing pulley can be easily disassembled, and the shock-absorbing rubber in the shock-absorbing pulley can be quickly replaced, thereby improving the replacement efficiency.
[0016] 2. By arranging arc-shaped reinforcement strips A, arc-shaped reinforcement strips B and reinforcement blocks, the strength of the shock-absorbing pulley after internal and external connections is increased, thereby improving the overall strength and service life of the shock-absorbing pulley. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a top-down perspective structural diagram of a vehicle camshaft damping pulley proposed by the utility model;
[0018] Figure 2 The utility model proposed Figure 1 A partial enlarged schematic diagram of the three-dimensional structure of the middle A area;
[0019] Figure 3 It is a right side cutaway three-dimensional structural schematic diagram of a camshaft damping pulley for a vehicle proposed by the utility model;
[0020] Figure 4 The utility model proposed Figure 3 A schematic diagram of the partially enlarged three-dimensional structure of the middle B area;
[0021] Figure 5 The utility model is a front side cutaway stereoscopic structural schematic diagram of a vehicle camshaft damping pulley.
[0022] In the figure: 1. outer wheel; 2. mounting wheel; 3. connecting ring; 4. connecting rod; 5. limit strip A; 6. limit strip B; 7. shock-absorbing rubber; 8. stop ring; 9. arc-shaped reinforcement strip A; 10. arc-shaped reinforcement strip B; 11. reinforcement block; 12. teeth; 13. positioning block A; 14. limit block; 15. mounting shell; 16. stop block; 17. positioning block B; 18. clamp; 19. auxiliary block; 20. limit ring. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0024] Reference Figure 1-5A camshaft damping pulley for a vehicle comprises an outer wheel 1 and a mounting wheel 2. A groove is arranged on the outer side of the outer wheel 1, and a plurality of teeth 12 are evenly fixed in the groove. A connecting ring 3 is arranged on the outer side of the mounting wheel 2. A plurality of connecting rods 4 are fixed on the outer side of the connecting ring 3. The connecting rods 4 are fixedly connected to the inner side of the outer wheel 1. A plurality of arc-shaped reinforcing strips A9 are fixed on the inner side of the outer wheel 1. A plurality of arc-shaped reinforcing strips B10 are fixed on the outer side of the connecting ring 3. Reinforcement strips A9 are fixed on both ends of the inner side of the arc-shaped reinforcing strip A9 and both ends of the outer side of the arc-shaped reinforcing strip B10. Block 11, reinforcement block 11, arc-shaped reinforcement strip A9 and arc-shaped reinforcement strip B10 are all fixedly connected with the connecting rod 4, and teeth 12 are arranged on the outer side of the outer wheel 1, so that the shock-absorbing pulley has teeth, and needs to be used in conjunction with a belt with teeth, so that the overall transmission is more stable, and the arc-shaped reinforcement strip A9, arc-shaped reinforcement strip B10 and reinforcement block 11 can improve the strength between the connecting rod 4 and the outer wheel 1 and the connecting ring 3, so that the overall strength of the shock-absorbing pulley is higher, and the bearing capacity and service life of the shock-absorbing pulley are improved.
[0025] A plurality of limit strips A5 are fixed to the inner side of the connecting ring 3, and a plurality of limit strips B6 are fixed to the inner side of the mounting wheel 2. The limit strips A5 and the limit strips B6 are of equal length and are staggered and replaced with each other. A shock-absorbing rubber 7 is provided on the outer side of the limit strip A5. The shock-absorbing rubber 7 is fixedly connected to the limit strip B6 and the outer side of the mounting wheel 2. A stop ring 8 is provided on the rear side of the mounting wheel 2, and a limit ring 20 is fixed to the front side of the mounting wheel 2. The stop ring 8 is fixed to the inner side of the connecting ring 3 and the rear side of the limit strip A5. The limiting ring 20 is fixedly connected to the front side of the limiting strip B6, and the mounting wheel 2 is fixed by the limiting strip B6 against the inside of the connecting ring 3, and then the mounting wheel 2 uses the limiting strip B6 to contact the limiting strip A5 to rotate with the connecting ring 3, and the limiting strip A5 and the limiting strip B6 transmit power through the shock-absorbing rubber 7 to achieve a shock-absorbing effect, and the stop ring 8 is connected to the limiting strip A5, and the limiting ring 20 is connected to the limiting strip B6, which improves the strength of the connection between the stop ring 8 and the limiting ring 20.
[0026] A fixed structure is provided between the outer side of the connecting ring 3 and the limiting ring 20, and the fixed structure includes four positioning blocks A13. Four through holes are provided at the front end of the outer side of the connecting ring 3, and four positioning grooves are provided on the outer side of the limiting ring 20. The positioning block A13 can slide inside the through holes and the positioning grooves to contact the limiting strip B6 with the stop ring 8, and then make the through hole and the positioning groove communicate. At this time, the positioning block A13 is inserted into the through hole and the positioning groove to position the limiting ring 20 in the connecting ring 3, and the limiting ring 20, the stop ring 8 and the mounting wheel 2 form an inner ring surface, which is installed on the outside of the camshaft.
[0027] The front side of the positioning block A13 is provided with a through hole A, the rear side is provided with a limit block 14, the rear side of the limit block 14 is fixed with a mounting shell 15, and the front side is provided with a through hole B. The limit block 14 and the mounting shell 15 are fixedly connected to the outer side of the connecting ring 3, and a stop block 16 is slidably provided on the inner side of the mounting shell 15. A positioning block B17 is fixed on the front side of the stop block 16. The positioning block B17 slides on the inner sides of the through holes A and B. A chamfer is provided on the front side of the positioning block B17. A limit groove A is provided on the side of the mounting shell 15 away from the connecting ring 3, and a limit groove B is provided on the side of the stop block 16 away from the connecting ring 3. A clamp 18 is provided on the outer side of the connecting ring 3. The clamp 18 can be rotated inside the limit grooves A and B. The mounting shell 15 is away from the connecting ring 3. A slide groove is provided on one side of the connecting ring 3, and the slide groove intersects with the limit groove A vertically. Four auxiliary blocks 19 are provided on the front side of the clamp 18. The auxiliary blocks 19 are fixedly connected to the stop blocks 16 and the auxiliary blocks 19 can slide on the inside of the slide groove. After the positioning block A13 is inserted into the through hole and the positioning groove, the stop block 16 is pushed toward the limit block 14, and the positioning block B17 is allowed to pass through the through hole A and the through hole B to fix the positioning block A13, and the limit grooves A and B on the mounting shell 15 and the stop block 16 are overlapped, and the clamp 18 is installed in the limit grooves A and B to avoid the movement of the positioning block B17, so that the disassembly of the shock-absorbing pulley is more convenient, and the rubber in the shock-absorbing pulley can be quickly replaced.
[0028] In the description of this patent, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.
[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A camshaft damping pulley for a vehicle, comprising an outer wheel (1) and a mounting wheel (2), characterized in that: A connecting ring (3) is provided on the outer side of the mounting wheel (2), a plurality of connecting rods (4) are fixed on the outer side of the connecting ring (3), the connecting rods (4) are fixedly connected to the inner side of the outer wheel (1), a plurality of limiting strips A (5) are fixed on the inner side of the connecting ring (3), a plurality of limiting strips B (6) are fixed on the inner side of the mounting wheel (2), a shock absorbing rubber (7) is provided on the outer side of the limiting strip A (5), the shock absorbing rubber (7) is fixedly connected to the limiting strip B (6) and the outer side of the mounting wheel (2), a stop ring (8) is provided on the rear side of the mounting wheel (2), a limit ring (20) is fixedly connected to the front side of the mounting wheel (2), the stop ring (8) is fixedly connected to the inner side of the connecting ring (3) and the rear side of the limiting strip A (5), the limit ring (20) is fixedly connected to the front side of the limiting strip B (6), and a fixing structure is provided between the outer side of the connecting ring (3) and the limit ring (20).
2. A vehicle camshaft damping pulley according to claim 1, characterized in that: The limiting strips A (5) and the limiting strips B (6) are of equal length and are positioned in an alternating manner.
3. The vehicle camshaft damping pulley according to claim 1, characterized in that: A plurality of arc-shaped reinforcement strips A (9) are fixed on the inner side of the outer wheel (1), and a plurality of arc-shaped reinforcement strips B (10) are fixed on the outer side of the connecting ring (3). Reinforcement blocks (11) are fixed to both ends of the inner side of the arc-shaped reinforcement strip A (9) and both ends of the outer side of the arc-shaped reinforcement strip B (10), and the reinforcement blocks (11), the arc-shaped reinforcement strip A (9) and the arc-shaped reinforcement strip B (10) are fixedly connected to the connecting rod (4).
4. The vehicle camshaft damping pulley according to claim 1, characterized in that: The outer side of the outer wheel (1) is provided with a groove, and a plurality of teeth (12) are evenly fixed in the groove.
5. The vehicle camshaft damping pulley according to claim 1, characterized in that: The fixing structure comprises four positioning blocks A (13), the front end of the outer side of the connecting ring (3) is provided with four through holes, the outer side of the limiting ring (20) is provided with four positioning grooves, the positioning block A (13) can slide inside the through holes and the positioning grooves, the front side of the positioning block A (13) is provided with a through hole A, the rear side is provided with a limiting block (14), the rear side of the limiting block (14) is fixed with a mounting shell (15), the front side is provided with a through hole B, the limiting block (14), the mounting shell (15) and the outer side of the connecting ring (3) are connected to each other. The mounting shell (15) is fixedly connected, a stop block (16) is slidably provided on the inner side of the mounting shell (15), a positioning block B (17) is fixedly provided on the front side of the stop block (16), the positioning block B (17) slides on the inner sides of the through holes A and B, a limiting groove A is provided on the side of the mounting shell (15) away from the connecting ring (3), a limiting groove B is provided on the side of the stop block (16) away from the connecting ring (3), a clamp (18) is provided on the outer side of the connecting ring (3), and the clamp (18) can rotate on the inner sides of the limiting groove A and the limiting groove B.
6. The vehicle camshaft damping pulley according to claim 5, characterized in that: A slide groove is provided on the side of the mounting shell (15) away from the connecting ring (3), and the slide groove intersects with the limit groove A vertically. Four auxiliary blocks (19) are provided on the front side of the clamp (18), and the auxiliary blocks (19) are fixedly connected to the stop blocks (16) and the auxiliary blocks (19) can slide inside the slide groove.
7. The vehicle camshaft damping pulley according to claim 5, characterized in that: The front side of the positioning block B (17) is provided with a chamfer.