CN221958102U - Belt pulley with damping and buffering mechanism - Google Patents

Abstract

The utility model relates to the technical field of belt pulleys and discloses a belt pulley with a damping and buffering mechanism, which comprises an outer ring hub, wherein a rubber ring layer is fixedly connected to the outer surface of the outer ring hub, belt check rings are fixedly connected to the two sides of the outer surface of the outer ring hub, a bearing port is installed and connected to the inner side of the outer surface of the outer ring hub, a damping spring is fixedly connected to the bearing port, a fixing base is fixedly connected to one end, far away from the bearing port, of the damping spring, an inner ring hub is fixedly connected to the bottom of the fixing base, a counterweight hole is formed in the inner ring hub, a silencing groove is formed in the inner ring hub, and a rotating shaft mounting hole is formed in the center of the inner ring hub. According to the utility model, the belt pulley is divided into the outer ring and the inner ring, the damping spring is arranged in the hysteresis layer, so that mutual vibration of the inner ring and the outer ring is reduced to a great extent, the balancing weight can compensate for uneven gravity center caused by the production process, and the noise generated by solid sound transmission can be weakened by filling the silencing cotton, so that the weight of the device is reduced.

Description

A belt pulley with a shock absorbing and buffering mechanism

Technical Field

The utility model relates to the technical field of pulleys, in particular to a pulley with a shock-absorbing and buffering mechanism.

Background Art

In belt transmission, belts and pulleys are the main transmission components. Once the pulley vibrates beyond the rated range, it will easily lead to problems such as shortened service life of shafts and bearings, pulley shedding, loosening of fixing screws, and mechanical damage to loads. There are many reasons for pulley vibration, such as too large a gap between the equipment shaft and the bearing, non-parallelism of the driving wheel and the driven wheel, etc. When the pulley itself has an uneven center of gravity due to production reasons, it will also vibrate strongly during high-speed rotation. This problem is not easy to solve, and the pulley is generally directly judged as a waste part and needs to be replaced directly.

According to the search, Chinese patent literature, announcement number: CN218780728U, discloses a pulley with a shock-absorbing effect. The utility model relates to the technical field of pulleys. The pulley with a shock-absorbing effect can achieve the purpose of changing the center of gravity position of the main body by adjusting each counterweight bolt through the cooperation between the main body, the slot, the rubber tube and the counterweight bolt. In this way, the problem of uneven center of gravity caused by the main body in the production process is compensated. Especially in the case of high-speed rotation, the solution effect of this problem is more positive, and it plays a protective role on the shaft, the bearing and the load machinery. There is no need to replace the pulley, which reduces the generation of waste parts. It is especially suitable for pulleys that have been partially damaged due to long-term use.

However, the above technology still has some shortcomings. Although the above prior art can achieve the purpose of changing the center of gravity position of the main body by adjusting each counterweight bolt, it cannot eliminate the vibration caused by other reasons.

Utility Model Content

1. Technical issues to be solved

In view of the deficiencies in the prior art, the utility model provides a pulley with a shock-absorbing and buffering mechanism, which has a variety of shock-absorbing and noise-reducing components, and has the advantage of solving equipment damage caused by vibration in many aspects, thereby solving the above-mentioned technical problems.

(II) Technical solution

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pulley with a shock-absorbing and buffering mechanism, comprising an outer ring hub, the outer surface of the outer ring hub is fixedly connected to a rubber ring layer, belt retaining rings are fixedly connected to both sides of the outer surface of the outer ring hub, a socket is installed and connected to the inner side of the outer surface of the outer ring hub, a shock-absorbing spring is fixedly connected in the socket, the end of the shock-absorbing spring away from the socket is fixedly connected to a fixed base, the bottom of the fixed base is fixedly connected to an inner ring hub, a counterweight hole is opened on the inner ring hub, a silencer groove is opened on the inner ring hub, and a rotating shaft mounting hole is opened in the center of the inner ring hub.

Preferably, a suspension layer is provided between the outer wheel hub and the inner wheel hub, and a protective cover is installed and connected to the inner side of the belt retaining ring.

Through the above technical solution, the entire pulley is divided into two parts, the outer ring and the inner ring. When the pulley operates as a component, a certain vibration amplitude will be generated. If the entire pulley is integrated, it will inevitably produce a vibration with a continuous increase, which will cause continuous damage to the component itself and its auxiliary components. However, when we leave a suspension layer between the inner and outer wheels and set some buffer accessories in the middle, the vibration problem will be solved to a great extent.

Preferably, the shock absorbing springs are arranged in a circular array with the shaft mounting hole as the center, and the shock absorbing springs have three circles in the circular array.

Through the above technical solution, when we leave a suspension layer between the inner and outer wheels and set some buffer accessories in the middle, that is, our shock-absorbing springs, the mutual vibration between the inner and outer rings will be reduced to a great extent. Whether the vibration is generated by the inner ring or the outer ring, it will be offset when passing through the shock-absorbing spring.

Preferably, a rubber shock absorber is installed and connected in the rotating shaft mounting hole.

Through the above technical solution, the vibration problem may be caused by the shaft. By setting a material with elastic properties at the installation position of the device and the shaft, the vibration can be weakened at the source.

Preferably, a counterweight block is threadedly connected to the counterweight hole.

Through the above technical solution, the counterweight block can compensate for the uneven center of gravity caused during the production process of the main body of the device, avoiding the problem of vibration caused by the uneven center of gravity of the main body of the device during high-speed rotation.

Preferably, the silencer groove is filled with silencer cotton.

Through the above technical solution, the filling of the sound-absorbing cotton can weaken the noise generated by solid sound transmission, and the existence of the sound-absorbing groove is also to reduce the weight of the device itself.

Compared with the prior art, the utility model provides a pulley with a shock-absorbing and buffering mechanism, which has the following beneficial effects:

1. The utility model divides the entire pulley into two parts, the outer ring and the inner ring. When the pulley operates as a component, a certain vibration amplitude will be generated. If the entire pulley is integrated, it will inevitably produce vibration with continuous amplification, which will cause continuous damage to the component itself and its auxiliary components. However, when we leave an air stagnation layer between the inner and outer wheels and set some buffer accessories in the middle, the vibration problem will be solved to a great extent. When we leave an air stagnation layer between the inner and outer wheels and set some buffer accessories in the middle, that is, our shock-absorbing spring, the mutual vibration of the inner and outer rings will be reduced to a great extent. Whether the vibration is generated by the inner ring or the outer ring, it will be offset when passing through the shock-absorbing spring.

2. The utility model recognizes that the vibration problem may be caused by the shaft. By setting an elastic material at the installation position of the device and the shaft, the vibration can be weakened at the source. The counterweight block can make up for the uneven center of gravity caused by the production process of the main body of the device, avoiding the problem of vibration caused by the uneven center of gravity of the main body of the device during high-speed rotation. The filling of silencer cotton can weaken the noise generated by solid sound transmission. The existence of the silencer groove is also to reduce the weight of the device itself.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic three-dimensional diagram of the structure of the utility model;

Figure 2 is a schematic plan view of the internal structure of the utility model;

FIG3 is a schematic cross-sectional view of the structure of the utility model.

Among them: 1. Outer wheel hub; 2. Rubber ring layer; 3. Belt retaining ring; 4. Socket interface; 5. Shock-absorbing spring; 6. Fixed base; 7. Inner wheel hub; 8. Counterweight hole; 9. Silencer groove; 10. Rotating shaft mounting hole; 11. Suspension layer; 12. Protective cover; 13. Rubber shock absorber; 14. Counterweight block; 15. Silencer cotton.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-3, a pulley with a shock-absorbing and buffering mechanism includes an outer ring hub 1, a rubber ring layer 2 is fixedly connected to the outer surface of the outer ring hub 1, belt retaining rings 3 are fixedly connected to the outer surface of the outer ring hub 1 on both sides, a socket 4 is installed and connected to the inner side of the outer surface of the outer ring hub 1, a shock-absorbing spring 5 is fixedly connected to the socket 4, the end of the shock-absorbing spring 5 away from the socket 4 is fixedly connected to a fixed base 6, the bottom of the fixed base 6 is fixedly connected to an inner ring hub 7, a counterweight hole 8 is opened on the inner ring hub 7, a silencer groove 9 is opened on the inner ring hub 7, and a rotating shaft installation hole 10 is opened in the center of the inner ring hub 7.

Specifically, an air stagnation layer 11 is provided between the outer wheel hub 1 and the inner wheel hub 7, and a protective cover 12 is installed and connected to the inner side of the belt retaining ring 3. The advantage is that the entire pulley is divided into two parts, the outer ring and the inner ring. When the pulley operates as a component, a certain vibration amplitude will be generated. If the entire pulley is integrated, it will inevitably generate a vibration with a continuous increase, which will cause continuous damage to the component itself and its auxiliary components. However, when we leave an air stagnation layer 11 between the inner and outer wheels and set some buffer accessories in the middle, the vibration problem will be solved to a great extent.

Specifically, the shock absorbing spring 5 is arranged in a circle with the rotating shaft mounting hole 10 as the center, and the shock absorbing spring 5 has three circles at the same time. The advantage is that when we leave a suspended layer 11 between the inner and outer wheels and set some buffer accessories in the middle, that is, our shock absorbing spring 5, the mutual vibration between the inner and outer wheels will be greatly reduced, and the vibration generated by the inner and outer wheels will be offset when passing through the shock absorbing spring 5.

Specifically, a rubber shock absorber 13 is installed and connected in the rotating shaft installation hole 10. The advantage is that the vibration problem may be caused by the shaft, and a material with elastic properties is provided at the installation position of the device and the shaft, so that the vibration can be weakened at the source.

Specifically, the counterweight hole 8 is internally threaded with a counterweight block 14. The advantage is that the counterweight block 14 can make up for the uneven center of gravity caused during the production process of the device body, avoiding the problem of vibration caused by the uneven center of gravity of the device body during high-speed rotation.

Specifically, the silencer groove 9 is filled with silencer cotton 15. The advantage is that the filling of the silencer cotton 15 can weaken the noise generated by solid sound transmission, and the existence of the silencer groove 9 is also to reduce the weight of the device itself.

When in use, the entire pulley is divided into two parts, the outer ring and the inner ring. When the pulley operates as a component, a certain vibration amplitude will be generated. If the entire pulley is integrated, it will inevitably generate vibration with continuous amplification, which will cause continuous damage to the component itself and its auxiliary components. However, when we leave an air stagnation layer 11 between the inner and outer wheels and set some buffer accessories in the middle, the vibration problem will be solved to a great extent. When we leave an air stagnation layer 11 between the inner and outer wheels and set some buffer accessories in the middle, that is, our shock-absorbing spring 5, the mutual vibration of the inner and outer rings will be greatly reduced. Whether it is the vibration generated by the inner ring or the outer ring, it will be offset when passing through the shock-absorbing spring 5. The vibration problem may be caused by the shaft. By setting a material with elastic properties at the installation position of the device and the shaft, the vibration can be weakened at the source. The counterweight block 14 can make up for the uneven center of gravity caused during the production process of the main body of the device, and avoid the problem of vibration caused by the uneven center of gravity of the main body of the device during high-speed rotation. The filling of the silencer cotton 15 can weaken the noise generated by solid sound transmission. The existence of the silencer groove 9 is also to reduce the weight of the device itself.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. Pulley with shock attenuation buffer gear, including outer lane wheel hub (1), its characterized in that: outer surface fixedly connected with rubber circle layer (2) of outer lane wheel hub (1), outer lane wheel hub (1) surface both sides fixedly connected with belt retaining ring (3), outer lane wheel hub (1) surface inboard installation is connected with bellmouth (4), fixedly connected with bradyseism spring (5) in bellmouth (4), one end fixedly connected with unable adjustment base (6) of bellmouth (4) are kept away from to bradyseism spring (5), unable adjustment base (6) bottom fixedly connected with inner circle wheel hub (7), counter weight hole (8) have been seted up on inner circle wheel hub (7), noise reduction groove (9) have been seted up on inner circle wheel hub (7), pivot mounting hole (10) have been seted up at inner circle wheel hub (7) central authorities.

2. A pulley with a shock absorbing buffer mechanism according to claim 1, wherein: a hysteresis layer (11) is arranged between the outer ring hub (1) and the inner ring hub (7), and a protective cover (12) is arranged and connected on the inner side of the belt retainer ring (3).

3. A pulley with a shock absorbing buffer mechanism according to claim 1, wherein: the damping springs (5) are circumferentially arrayed by taking the rotating shaft mounting holes (10) as circle centers, and the damping springs (5) are circumferentially arrayed in three circles at the same time.

4. A pulley with a shock absorbing buffer mechanism according to claim 1, wherein: and a rubber shock absorber (13) is arranged in the rotating shaft mounting hole (10).

5. A pulley with a shock absorbing buffer mechanism according to claim 1, wherein: the counter weight hole (8) is internally connected with a counter weight (14) through threads.

6. A pulley with a shock absorbing buffer mechanism according to claim 1, wherein: the silencing groove (9) is filled with silencing cotton (15).