One-way overrunning belt pulley with buffering and damping functions

Abstract

The utility model belongs to the technical field of belt pulleys, and particularly relates to a one-way overrunning belt pulley with buffering and damping functions, which comprises a belt pulley body, a damping device is arranged in the belt pulley body, and the damping device comprises a damping ball, a damper, a damping spring and a shaking block. According to the one-way overrunning belt pulley with the buffering and vibration reduction functions, a belt is clamped in the belt groove of the belt pulley body for transmission, vibration transmitted by the belt is transmitted to the vibration reduction balls, after the vibration reduction balls are vibrated, a shaking block shakes, then the vibration is transmitted to the vibration reduction springs, the vibration reduction springs stretch out and draw back, and the vibration is converted into elastic potential energy of the springs; the elasticity of the damping springs can be reduced due to long-time stretching and retracting, replacement is needed, when replacement is needed, the screw rings are taken down from the limiting screw rods, then the limiting screw rods are taken out from the fixing transverse plate, the damping balls can be separated, and the mechanism in the balls can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a one-way overrunning pulley with a buffering and vibration reduction function. Background Art

[0002] For example, in a one-way overrunning pulley and manufacturing method with buffering and vibration reduction function (application number: 202311535212.5) disclosed on the Chinese Patent Network, when the pulley is vibrated, a buffering and vibration reduction ring is provided to buffer the vibration driven by the outside world. However, the buffering and vibration reduction ring is directly fixed on the pulley, which is inconvenient to disassemble and assemble. After the buffering and vibration reduction ring is used for a long time, the vibration reduction effect will be reduced and needs to be replaced. This is not convenient to use and affects the vibration reduction effect of the pulley. Utility Model Content

[0003] Based on the technical problem that the existing pulley vibration reduction mechanism is inconvenient to replace, the utility model proposes a one-way overrunning pulley with buffering and vibration reduction function.

[0004] The utility model proposes a one-way overrunning pulley with buffering and vibration reduction function, comprising a pulley body, a vibration reduction device arranged inside the pulley body, the vibration reduction device comprising a vibration reduction ball, a shock absorber, a vibration reduction spring and a shaking block. When the vibration reduction ball is vibrated, the shaking block will shake inside the vibration reduction ball, and when the shaking block shakes, the vibration reduction spring will be driven to expand and contract, and when the vibration reduction spring expands and contracts, the shock absorber will be squeezed.

[0005] Preferably, a belt groove is provided on the outer surface of the pulley body, a buffer pad is fixedly connected to the inside of the belt groove, a circular groove is provided inside the pulley body, a fixed round rod is fixedly installed inside the circular groove, and a plurality of the fixed round rods are distributed in a circular array with the axis of the pulley body as the array center.

[0006] Through the above technical solution, a buffer pad is arranged in the belt groove, so that the impact force on the belt can be buffered when the belt is stuck in the belt groove for transmission.

[0007] Preferably, a mounting plate is fixedly mounted on the outer surface of each fixed round rod, and the vibration-damping ball is fixedly mounted on the outer surface of the mounting plate. The vibration-damping ball includes an upper hemisphere and a lower hemisphere, and the outer surface of the upper hemisphere is fixedly connected to the outer surface of the mounting plate.

[0008] Through the above technical solution, the mounting plate is installed outside the fixed round rod, and the vibration-damping ball is installed on the mounting plate, so that the vibration-damping ball is stably maintained inside the pulley.

[0009] Preferably, fixed transverse plates are fixedly installed on the outer surfaces of the upper hemisphere and the lower hemisphere, and the two fixed transverse plates are in close contact up and down. The internal threads of the fixed transverse plates are connected to limit screws, and the outer surfaces of the limit screws are threadedly connected to screw rings.

[0010] Through the above technical solution, the limiting screw passes through the inside of the two fixed horizontal plates and is then fixed with a screw ring, so that the two fixed horizontal plates can fit tightly together, thereby allowing the upper hemisphere and the lower hemisphere to fit tightly.

[0011] Preferably, the two shock absorbers are fixedly mounted inside the damping ball, the two shock absorbers are horizontally symmetrically distributed with the axis of the damping ball as the symmetry center, and the two damping springs are respectively fixedly mounted on the outer surfaces of the two shock absorbers.

[0012] Through the above technical solution, when the vibration-damping ball is vibrated, the vibration-damping spring will expand and contract, so that the vibration is converted into elastic potential energy of the spring, which is then eliminated by the shock absorber to achieve a vibration reduction effect.

[0013] Preferably, the shaking block is fixedly installed between two shock-absorbing springs, a tooth groove is opened inside the belt groove, the outer surface of the shock absorber is fixedly connected to the inner wall of the upper hemisphere, and the outer surface of the shock absorber is slidably connected to the inner wall of the lower hemisphere.

[0014] Through the above technical solution, when the vibration-damping ball is vibrated, the shaking block will shake, and then the vibration will be transmitted to the vibration-damping spring, causing the vibration-damping spring to expand and contract.

[0015] The beneficial effects of the present invention are:

[0016] By setting up a vibration damping device, the belt is stuck in the belt groove of the pulley body for transmission. The pulley body is subjected to vibration transmitted by the belt, which is first partially buffered by the buffer pad and then transmitted to the vibration damping ball. After the vibration damping ball is vibrated, the shaking block shakes and then the vibration is transmitted to the vibration damping spring, causing the vibration damping spring to expand and contract, and the vibration is converted into elastic potential energy of the spring, which is then eliminated by the shock absorber to achieve the vibration damping effect. Long-term expansion and contraction of the vibration damping spring will reduce its elasticity and it needs to be replaced. When replacing, remove the screw ring from the limit screw, and then remove the limit screw from the fixed horizontal plate to separate the vibration damping ball, making it convenient to replace the mechanism inside the ball, thereby achieving the effect of facilitating the replacement of the vibration damping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a one-way overrunning pulley with a buffering and vibration reduction function proposed by the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the pulley body structure of a one-way overrunning pulley with a buffering and vibration reduction function proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of a pulley body of a one-way overrunning pulley with a buffering and vibration reduction function proposed by the utility model;

[0020] Figure 4 A three-dimensional diagram of a vibration-damping ball structure of a one-way overrunning pulley with a buffering and vibration-damping function proposed by the utility model;

[0021] Figure 5 The utility model provides a cross-sectional view of a vibration-damping ball structure of a one-way overrunning pulley with a buffering and vibration-damping function.

[0022] In the figure: 1. Pulley body; 11. Belt groove; 12. Buffer pad; 13. Circular ring groove; 14. Fixed round rod; 15. Mounting plate; 16. Tooth groove; 2. Vibration-damping ball; 21. Upper hemisphere; 22. Lower hemisphere; 23. Fixed cross plate; 24. Limit screw; 25. Screw ring; 3. Shock absorber; 4. Vibration-damping spring; 5. Shaking block. 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-Figure 5 A one-way overrunning pulley with a buffering and vibration reduction function comprises a pulley body 1. In order to facilitate buffering of the vibration received by the pulley body 1, a vibration reduction device is arranged inside the pulley body 1. The vibration reduction device comprises a vibration reduction ball 2, a shock absorber 3, a vibration reduction spring 4 and a shaking block 5. When the vibration reduction ball 2 is vibrated, the shaking block 5 will shake inside the vibration reduction ball 2. When the shaking block 5 shakes, it drives the vibration reduction spring 4 to expand and contract. When the vibration reduction spring 4 expands and contracts, the shock absorber 3 is squeezed.

[0025] In order to facilitate buffering of the impact force on the belt, a belt groove 11 is provided on the outer surface of the pulley body 1, and a buffer pad 12 is fixedly connected to the inside of the belt groove 11. An annular groove 13 is provided inside the pulley body 1, and a fixed round rod 14 is fixedly installed inside the annular groove 13. Several fixed round rods 14 are distributed in a circular array with the axis of the pulley body 1 as the array center. A buffer pad 12 is arranged in the belt groove 11, so that the impact force on the belt can be buffered when the belt is stuck in the belt groove 11 for transmission.

[0026] In order to ensure that the vibration-damping ball 2 is stably maintained inside the pulley, a mounting plate 15 is fixedly installed on the outer surface of each fixed round rod 14, and the vibration-damping ball 2 is fixedly installed on the outer surface of the mounting plate 15. The vibration-damping ball 2 includes an upper hemisphere 21 and a lower hemisphere 22. The outer surface of the upper hemisphere 21 is fixedly connected to the outer surface of the mounting plate 15. The mounting plate 15 is installed outside the fixed round rod 14, and the vibration-damping ball 2 is installed on the mounting plate 15, so that the vibration-damping ball 2 is stably maintained inside the pulley.

[0027] In order to facilitate the close fitting of the upper hemisphere 21 and the lower hemisphere 22, a fixed horizontal plate 23 is fixedly installed on the outer surface of the upper hemisphere 21 and the lower hemisphere 22. The two fixed horizontal plates 23 are in close contact up and down. The internal thread connection of the fixed horizontal plate 23 is connected with a limiting screw 24. The outer surface of the limiting screw 24 is threaded with a screw ring 25. The limiting screw 24 passes through the inside of the two fixed horizontal plates 23 and is then fixed with the screw ring 25, so that the two fixed horizontal plates 23 can fit closely together, thereby allowing the upper hemisphere 21 and the lower hemisphere 22 to fit closely.

[0028] In order to facilitate the use of the vibration-damping ball 2 to buffer the vibration, the two shock absorbers 3 are fixedly installed inside the vibration-damping ball 2. The two shock absorbers 3 are horizontally symmetrically distributed with the axis of the vibration-damping ball 2 as the center of symmetry. The two vibration-damping springs 4 are respectively fixedly installed on the outer surfaces of the two shock absorbers 3. When the vibration-damping ball 2 is vibrated, the vibration-damping springs 4 will expand and contract, and the vibration will be converted into elastic potential energy of the spring, which will then be eliminated by the shock absorber 3 to achieve a vibration reduction effect.

[0029] In order to facilitate the use of shock-absorbing springs 4 to buffer vibrations, the shaking block 5 is fixedly installed between the two shock-absorbing springs 4, a tooth groove 16 is opened inside the belt groove 11, the outer surface of the shock absorber 3 is fixedly connected to the inner wall of the upper hemisphere 21, and the outer surface of the shock absorber 3 is slidingly connected to the inner wall of the lower hemisphere 22. When the shock-absorbing ball 2 is vibrated, the shaking block 5 will shake, and then the vibration will be transmitted to the shock-absorbing spring 4, causing the shock-absorbing spring 4 to expand and contract.

[0030] By setting up a vibration damping device, the belt is stuck in the belt groove 11 of the pulley body 1 for transmission. The pulley body 1 is subjected to the vibration transmitted by the belt, and a part of it is first buffered by the buffer pad 12, and then transmitted to the vibration damping ball 2. After the vibration damping ball 2 is vibrated, the shaking block 5 is shaken, and then the vibration is transmitted to the vibration damping spring 4, so that the vibration damping spring 4 is expanded and contracted, and the vibration is converted into elastic potential energy of the spring, which is then eliminated by the shock absorber 3 to achieve the vibration damping effect. The long-term expansion and contraction of the vibration damping spring 4 will reduce its elasticity and needs to be replaced. When replacing, the screw ring 25 is removed from the limit screw 24, and then the limit screw 24 is removed from the fixed cross plate 23 to separate the vibration damping ball 2, so that the mechanism inside the ball can be replaced conveniently, thereby achieving the effect of facilitating the replacement of the vibration damping mechanism.

[0031] Working principle: the belt is stuck in the belt groove 11 of the pulley body 1 for transmission. The pulley body 1 is subjected to the vibration transmitted by the belt, which is first buffered by the buffer pad 12 and then transmitted to the vibration-damping ball 2. After the vibration-damping ball 2 is vibrated, the shaking block 5 is shaken, and then the vibration is transmitted to the vibration-damping spring 4, causing the vibration-damping spring 4 to expand and contract, and the vibration is converted into elastic potential energy of the spring, which is then eliminated by the shock absorber 3 to achieve the vibration reduction effect. The long-term expansion and contraction of the vibration-damping spring 4 will reduce its elasticity and needs to be replaced. When replacing, remove the screw ring 25 from the limit screw 24, and then remove the limit screw 24 from the fixed cross plate 23 to separate the vibration-damping ball 2, so as to facilitate the replacement of the mechanism inside the ball.

[0032] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A one-way overrunning pulley with a buffering and vibration reduction function, comprising a pulley body (1), characterized in that: A vibration-damping device is arranged inside the pulley body (1), and the vibration-damping device comprises a vibration-damping ball (2), a shock absorber (3), a vibration-damping spring (4) and a shaking block (5). When the vibration-damping ball (2) is vibrated, the shaking block (5) will shake inside the vibration-damping ball (2). When the shaking block (5) shakes, it drives the vibration-damping spring (4) to expand and contract. When the vibration-damping spring (4) expands and contracts, it squeezes the shock absorber (3).

2. The one-way overrunning pulley with buffering and vibration reduction function according to claim 1, characterized in that: The outer surface of the pulley body (1) is provided with a belt groove (11), a buffer pad (12) is fixedly connected inside the belt groove (11), a circular groove (13) is provided inside the pulley body (1), a fixed round rod (14) is fixedly installed inside the circular groove (13), and a plurality of the fixed round rods (14) are distributed in a circular array with the axis of the pulley body (1) as the array center.

3. The one-way overrunning pulley with buffering and vibration reduction function according to claim 2, characterized in that: A mounting plate (15) is fixedly mounted on the outer surface of each fixed round rod (14); the vibration-damping ball (2) is fixedly mounted on the outer surface of the mounting plate (15); the vibration-damping ball (2) comprises an upper hemisphere (21) and a lower hemisphere (22); and the outer surface of the upper hemisphere (21) is fixedly connected to the outer surface of the mounting plate (15).

4. The one-way overrunning pulley with buffering and vibration reduction function according to claim 3 is characterized in that: The outer surfaces of the upper hemisphere (21) and the lower hemisphere (22) are fixedly mounted with fixed transverse plates (23), the two fixed transverse plates (23) are in close contact with each other, the inner threads of the fixed transverse plates (23) are connected to the limiting screw rod (24), and the outer surface of the limiting screw rod (24) is connected to the screw ring (25) through threads.

5. The one-way overrunning pulley with buffering and vibration reduction function according to claim 1, characterized in that: The two shock absorbers (3) are both fixedly mounted inside the vibration-damping ball (2); the two shock absorbers (3) are horizontally symmetrically distributed with the axis of the vibration-damping ball (2) as the symmetry center; and the two vibration-damping springs (4) are respectively fixedly mounted on the outer surfaces of the two shock absorbers (3).

6. The one-way overrunning pulley with buffering and vibration reduction function according to claim 3, characterized in that: The shaking block (5) is fixedly installed between the two damping springs (4), a tooth groove (16) is provided inside the belt groove (11), the outer surface of the shock absorber (3) is fixedly connected to the inner wall of the upper hemisphere (21), and the outer surface of the shock absorber (3) is slidably connected to the inner wall of the lower hemisphere (22).

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