Belt pulley with noise reduction structure

Abstract

The utility model relates to the technical field of belt pulleys with noise reduction, and discloses a belt pulley with a noise reduction structure, which comprises a motor and a connecting belt, the output end of the motor is fixedly connected with a first rotating rod, the front end of the first rotating rod is fixedly connected with a first rotating wheel, and the rear side of the first rotating wheel is provided with a circular groove. A plurality of fixing rods are fixedly connected to the front side of the motor, moving rods are slidably connected to the front ends of the fixing rods, the same limiting ring is fixedly connected to the front ends of the moving rods, the limiting ring is rotatably connected with the interior of the circular groove, and a second rotating wheel is arranged on the right side of the first rotating wheel. And the first rotating wheel is connected with a second rotating wheel through a connecting belt. According to the device, the motor and the first rotating wheel are fixed through the limiting rings at the front ends of the fixed rod and the movable rod to reduce shaking, fixing is conducted through the telescopic plate, the influence of noise on the surrounding working environment is reduced, and the working efficiency and the concentration degree of workers are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt pulleys with noise reduction, in particular to a belt pulley with a noise reduction structure. Background Art

[0002] Pulleys play an important role in mechanical transmission systems. Pulleys transmit power from one driving component to another by transmitting force and torque. This transmission method is suitable for scenarios that require flexible adjustment of speed ratio and transmission of power.

[0003] Compared with direct gear drive or chain drive, the belt drive system has better shock absorption and buffering performance, which can reduce the impact and vibration during the transmission process, thereby extending the service life of mechanical equipment. The belt drive system is usually lower in cost. It does not require precise gear processing or high-pressure oil lubrication system, so it is more economical and practical.

[0004] Most of the pulleys on the market are connected through a rotating wheel, which will produce noise due to shaking during operation. The noise will disturb the surrounding working environment, affect the work efficiency and concentration of employees, and have a negative impact on the health and quality of life of workers. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a pulley with a noise reduction structure, aiming to improve the problem in the prior art that noise is generated due to shaking during work, the noise interferes with the surrounding working environment, affects the work efficiency and concentration of employees, and has a negative impact on the health and quality of life of workers.

[0006] The transmission gear of the present invention is a gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a

[0007] As a further description of the above technical solution:

[0008] The clamping mechanism includes a working box, which is arranged at the bottom of the motor, and a second groove is opened on the top of the working box. A rotating shaft is fixedly connected to the front side of the working box, and the rear end of the rotating shaft passes through the working box and is fixedly connected to a driving bevel gear. The left and right sides of the second groove are rotatably connected with threaded rods, and the adjacent sides of the two threaded rods are fixedly connected with driven bevel gears. The two driven bevel gears are respectively meshed and connected with the left and right sides of the corresponding driving bevel gears, and the outer walls of the two threaded rods are threadedly connected with moving blocks, and the top of the moving block is fixedly connected with a limiting column.

[0009] As a further description of the above technical solution:

[0010] A limiting hole is provided on the front end side of the plurality of fixed rods, a first groove is provided on the rear end side of the plurality of movable rods, a spring is fixedly connected inside the plurality of first grooves, one end of the spring is fixedly connected to a limiter, and the plurality of limiters are slidably connected to the corresponding limiting holes respectively.

[0011] As a further description of the above technical solution:

[0012] Slide grooves are provided on the front and rear sides of the second groove, and sliders are fixedly connected to the front and rear sides of the two moving blocks. The multiple sliders are slidably connected in the corresponding slide grooves.

[0013] As a further description of the above technical solution:

[0014] The tops of the two moving blocks are fixedly connected with limiting columns, and the adjacent sides of the two limiting columns are fixedly connected with rubber pads.

[0015] As a further description of the above technical solution:

[0016] Soft cushions are fixedly connected inside the first rotating wheel and the second rotating wheel.

[0017] As a further description of the above technical solution:

[0018] Front ends of the first rotating wheel and the second rotating wheel are both rotatably connected to a limiting cover.

[0019] As a further description of the above technical solution:

[0020] The size of the limiting circular ring matches the size of the circular groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the motor and the first rotating wheel are fixed by the limiting rings at the front end of the fixed rod and the movable rod to reduce shaking, and the first rotating wheel and the second rotating wheel are fixed by the telescopic plate to reduce the noise generated by shaking, reduce the impact of noise on the surrounding working environment, and improve the work efficiency and concentration of employees.

[0023] 2. In the utility model, the active bevel gear is driven to rotate by rotating the rotating shaft, so that the driven bevel gear rotates and drives the threaded rod to rotate, so that the moving block moves with the limit column, and motors of different sizes can be clamped to reduce shaking, which is convenient for staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a pulley with a noise reduction structure proposed by the utility model;

[0025] Figure 2 This is a vertical view of a pulley with a noise reduction structure proposed by the utility model;

[0026] Figure 3 This is a partial structural cross-sectional view of a pulley with a noise reduction structure proposed by the utility model;

[0027] Figure 4 This is the enlarged view of point A;

[0028] Figure 5 The present invention is a schematic diagram of the local structure of a pulley with a noise reduction structure.

[0029] Legend:

[0030] 1. Motor; 2. Clamping mechanism; 201. Working box; 202. Second groove; 203. Rotating shaft; 204. Active bevel gear; 205. Threaded rod; 206. Driven bevel gear; 207. Moving block; 208. Limiting column; 3. First rotating rod; 4. First rotating wheel; 5. Circular groove; 6. Fixed rod; 7. Moving rod; 8. Limiting ring; 9. Second rotating wheel; 10. Connecting belt; 11. Second rotating rod; 12. Limiting plate; 13. Telescopic plate; 14. Limiting cover; 15. Limiting hole; 16. First groove; 17. Spring; 18. Stopper; 19. Soft pad; 20. Rubber pad; 21. Sliding block; 22. Sliding groove. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 5 , the utility model provides an embodiment: a pulley with a noise reduction structure, including a motor 1 and a connecting belt 10, the output end of the motor 1 is fixedly connected to a first rotating rod 3, the front end of the first rotating rod 3 is fixedly connected to a first rotating wheel 4, a circular groove 5 is opened on the rear side of the first rotating wheel 4, a plurality of fixed rods 6 are fixedly connected to the front side of the motor 1, the front ends of the plurality of fixed rods 6 are slidably connected to moving rods 7, the front ends of the plurality of moving rods 7 are fixedly connected to the same limiting ring 8, the limiting ring 8 is rotatably connected to the inside of the circular groove 5, a second rotating wheel 9 is arranged on the right side of the first rotating wheel 4, the first rotating wheel 4 is connected to the second rotating wheel 9 through a connecting belt 10, the front side of the second rotating wheel 9 is fixedly connected to a second rotating rod 11, the rear end of the second rotating rod 11 passes through the second rotating wheel 9, the front sides of the outer walls of the first rotating rod 3 and the second rotating rod 11 are fixedly connected to a limiting plate 12, the front ends of the first rotating rod 3 and the second rotating rod 11 are rotatably connected to the same telescopic plate 13, and a clamping mechanism 2 is arranged at the bottom of the motor 1;

[0033] Specifically, the rotation of the first rotating rod 3 drives the first rotating wheel 4 to rotate. At this time, the fixed rod 6 and the movable rod 7 are pushed forward, so that the limiting ring 8 enters the circular groove 5 to limit the first rotating wheel 4. At this time, the connecting belt 10 drives the second rotating wheel 9 to rotate, and the telescopic plate 13 limits the first rotating wheel 4 and the second rotating wheel 9. Through the fixed limitation between each other, the shaking generated during rotation is reduced, the impact of noise on the surrounding working environment is reduced, and the work efficiency and concentration of employees are improved.

[0034] Reference Figure 2 and Figure 3 The clamping mechanism 2 includes a working box 201, which is arranged at the bottom of the motor 1. A second groove 202 is opened on the top of the working box 201. A rotating shaft 203 is fixedly connected to the front side of the working box 201. The rear end of the rotating shaft 203 passes through the working box 201 and is fixedly connected to a driving bevel gear 204. The left and right sides of the second groove 202 are rotatably connected with threaded rods 205. The adjacent sides of the two threaded rods 205 are fixedly connected with driven bevel gears 206. The two driven bevel gears 206 are respectively meshed with the left and right sides of the corresponding driving bevel gear 204. The outer walls of the two threaded rods 205 are threadedly connected with moving blocks 207. The top of the moving block 207 is fixedly connected with a limiting column 208.

[0035] Specifically, the clamping mechanism 2 can clamp the motor 1 stably, and the driving bevel gear 204 is driven to rotate by rotating the rotating shaft 203, so that the driven bevel gear 206 rotates and drives the threaded rod 205 to rotate, so that the moving block 207 moves with the limiting column 208, and the motors 1 of different sizes can be clamped to reduce shaking, which is convenient for the staff to use.

[0036] Reference Figure 2 and Figure 4 , a limiting hole 15 is provided on one side of the front end of the plurality of fixed rods 6, a first groove 16 is provided on one side of the rear end of the plurality of moving rods 7, a spring 17 is fixedly connected inside the plurality of first grooves 16, one end of the spring 17 is fixedly connected to a limiter 18, and the plurality of limiters 18 are slidably connected to the corresponding limiting holes 15, the tops of the two moving blocks 207 are fixedly connected to the limiting columns 208, the adjacent sides of the two limiting columns 208 are fixedly connected to the rubber pads 20, and the insides of the first rotating wheel 4 and the second rotating wheel 9 are fixedly connected to the soft pads 19;

[0037] Specifically, the limiter 18 and the limit hole 15 can prevent the fixed rod 6 and the movable rod 7 from separating and falling off, the rubber pad 20 can increase the friction force to facilitate clamping, and the soft pad 19 can reduce the shaking of the connecting belt 10 and the first rotating wheel 4 and the second rotating wheel 9.

[0038] Reference Figure 1 , Figure 3 and Figure 5 The front and rear sides of the second groove 202 are both provided with slide grooves 22, and the front and rear sides of the two moving blocks 207 are both fixedly connected with sliders 21, and the multiple sliders 21 are respectively slidably connected in the corresponding slide grooves 22, and the front ends of the first rotating wheel 4 and the second rotating wheel 9 are both rotatably connected to the limit cover 14, and the size of the limit ring 8 matches the size of the circular groove 5;

[0039] Specifically, the slider 21 and the slide groove 22 can allow the moving block 207 to move more stably, the limiting cover 14 can prevent the telescopic plate 13 from falling off, and the matching sizes of the limiting ring 8 and the circular groove 5 can better fix the first rotating wheel 4 and the motor 1.

[0040] Working principle: When using the pulley, the motor 1 must first be operated to drive the first rotating rod 3 to rotate. At this time, the fixed rod 6 and the movable rod 7 are pushed forward, so that the limiting ring 8 enters the circular groove 5. At the same time, the circular groove 5 rotates the limiting ring 8 to limit the first rotating wheel 4 inside. At this time, the connecting belt 10 drives the second rotating wheel 9 to rotate, and the telescopic plate 13 limits the first rotating wheel 4 and the second rotating wheel 9. At the same time, there is a soft pad 19 between the connecting belt 10 and the first rotating wheel 4 and the second rotating wheel 9 to reduce the shaking during rotation, reduce the impact of noise on the surrounding working environment, and improve the work efficiency and concentration of employees. When using different motors 1, the rotating shaft 203 is rotated to make the active bevel gear 204 rotate, and the two driven bevel gears 206 rotate at any time. At this time, the threaded rod 205 rotates, so that the two moving blocks 207 move in adjacent directions. At the same time, the limiting column 208 also moves to the middle to clamp the motor 1. Motors 1 of different sizes can be clamped to reduce shaking, which is convenient for staff to use.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulley with a noise reduction structure, comprising a motor (1) and a connecting belt (10), characterized in that: The output end of the motor (1) is fixedly connected to a first rotating rod (3), the front end of the first rotating rod (3) is fixedly connected to a first rotating wheel (4), a circular groove (5) is provided on the rear side of the first rotating wheel (4), a plurality of fixed rods (6) are fixedly connected to the front side of the motor (1), the front ends of the plurality of fixed rods (6) are slidably connected to a moving rod (7), the front ends of the plurality of moving rods (7) are fixedly connected to the same limiting circular ring (8), the limiting circular ring (8) is rotatably connected to the inside of the circular groove (5), and a right side of the first rotating wheel (4) is provided with a A second rotating wheel (9) is arranged, the first rotating wheel (4) is connected to the second rotating wheel (9) via a connecting belt (10), a second rotating rod (11) is fixedly connected to the front side of the second rotating wheel (9), a rear end of the second rotating rod (11) passes through the second rotating wheel (9), the front sides of the outer walls of the first rotating rod (3) and the second rotating rod (11) are fixedly connected to a limiting plate (12), the front ends of the first rotating rod (3) and the second rotating rod (11) are rotatably connected to the same telescopic plate (13), and a clamping mechanism (2) is arranged at the bottom of the motor (1).

2. A pulley with a noise reduction structure according to claim 1, characterized in that: The clamping mechanism (2) comprises a working box (201), the working box (201) being arranged at the bottom of the motor (1), the top of the working box (201) being provided with a second groove (202), the front side of the working box (201) being fixedly connected with a rotating shaft (203), the rear end of the rotating shaft (203) passing through the working box (201) and being fixedly connected with a driving bevel gear (204), the left and right sides of the second groove (202) being rotatably connected with threaded rods (205), the adjacent sides of the two threaded rods (205) being fixedly connected with driven bevel gears (206), the two driven bevel gears (206) being meshedly connected with the left and right sides of the corresponding driving bevel gear (204), the outer walls of the two threaded rods (205) being threadedly connected with moving blocks (207), the tops of the moving blocks (207) being fixedly connected with limiting pillars (208).

3. The pulley with a noise reduction structure according to claim 1, characterized in that: A limiting hole (15) is provided on the front end side of the plurality of fixed rods (6), a first groove (16) is provided on the rear end side of the plurality of movable rods (7), a spring (17) is fixedly connected inside the plurality of first grooves (16), one end of the spring (17) is fixedly connected to a limiter (18), and the plurality of limiters (18) are slidably connected to the corresponding limiting holes (15) respectively.

4. The pulley with a noise reduction structure according to claim 2, characterized in that: The front and rear sides of the second groove (202) are both provided with sliding grooves (22), the front and rear sides of the two moving blocks (207) are both fixedly connected with sliding blocks (21), and the plurality of sliding blocks (21) are respectively slidably connected inside the corresponding sliding grooves (22).

5. The pulley with a noise reduction structure according to claim 2, characterized in that: The tops of the two moving blocks (207) are both fixedly connected to a limiting column (208), and the adjacent sides of the two limiting columns (208) are both fixedly connected to a rubber pad (20).

6. The pulley with a noise reduction structure according to claim 1, characterized in that: A soft pad (19) is fixedly connected inside the first rotating wheel (4) and the second rotating wheel (9).

7. The pulley with a noise reduction structure according to claim 1, characterized in that: The front ends of the first rotating wheel (4) and the second rotating wheel (9) are both rotatably connected to a limiting cover (14).

8. The pulley with a noise reduction structure according to claim 1, characterized in that: The size of the limiting circular ring (8) matches the size of the circular groove (5).

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