A vertical pulley system with easy adjustment of tightness

Abstract

This utility model discloses a vertical pulley system with convenient tension adjustment, relating to the field of speed reducer technology. It is used to install on a speed reducer body and includes a bracket, a motor, a height adjustment mechanism, a first pulley, a second pulley, and a belt. The bracket is located at the upper end of the speed reducer body, and the motor is mounted on the bracket. The first pulley is mounted on the output shaft of the motor, and the second pulley is mounted on the input shaft of the speed reducer body. The belt connects the first and second pulleys. The height adjustment mechanism is located on the bracket. By rotating the first and second nuts through the height adjustment mechanism on the bracket, the motor height can be easily adjusted, thereby tightening the belt that has become loose due to wear. This design allows the belt to maintain good transmission condition without replacing the pulleys after a period of use, simply by adjusting the height.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a vertical belt pulley system with convenient tension adjustment. Background Technology

[0002] In the field of industrial production, the speed reducer is a key device for power transmission and speed conversion, and the way it is connected to the motor has a profound impact on the performance and stability of the equipment.

[0003] Currently, the motor and reducer are arranged independently, resulting in a less compact overall structure and occupying a significant amount of floor space. In production workshops with limited space, this not only affects the rationality of equipment layout but may also limit the company's ability to further expand production scale. Secondly, the motor and reducer are connected using ordinary pulleys. During operation, the belt is exposed, posing a serious threat to operator safety if personnel accidentally get caught in it. Furthermore, with prolonged operation, the belt will loosen due to wear and tear, affecting transmission efficiency. Traditional methods often require replacing the pulleys directly to solve the belt loosening problem, which undoubtedly increases maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a vertical pulley system with easily adjustable tension to solve the aforementioned technical problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A vertical pulley system with easily adjustable tension is used to install on a reducer body. It includes a bracket, a motor, a height adjustment mechanism, a first pulley, a second pulley, and a belt. The bracket is located at the upper end of the reducer body, and the motor is mounted on the bracket. The first pulley is mounted on the output shaft of the motor, and the second pulley is mounted on the input shaft of the reducer body. The belt connects the first pulley and the second pulley. The height adjustment mechanism is mounted on the bracket.

[0007] Preferably, a protective cover is also included, wherein the protective cover is provided on the outer side of the first pulley, the second pulley, and the belt.

[0008] As a further preferred embodiment, the protective cover is connected to the bracket.

[0009] As a further preferred embodiment, the protective cover has several heat dissipation holes on its side wall.

[0010] Preferably, the bracket includes a first mounting plate, a second mounting plate, and a third mounting plate. The first mounting plate and the second mounting plate are respectively mounted on the upper end of the reducer body, and the third mounting plate is located above the first mounting plate and the second mounting plate.

[0011] As a further preferred embodiment, the height adjustment mechanism includes a first threaded post and a first nut, the first threaded post passing through the first mounting plate and the third mounting plate, and two first nuts being provided on the first threaded post, with the two first nuts located on both sides of the third mounting plate.

[0012] As a further preferred embodiment, the height adjustment mechanism further includes a second threaded post, a second nut, and a third nut. The second threaded post passes through the third mounting plate and the second mounting plate. Two second nuts and one third nut are provided on the second threaded post. The two second nuts are located on both sides of the second mounting plate, and the third nut abuts against the lower end of the third mounting plate.

[0013] As a further preferred embodiment, the first mounting plate and the second mounting plate are connected to the reducer body by bolts or welding.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] (1) In this utility model, the vertical pulley system uses a first pulley, a second pulley, and a belt to connect the motor and the reducer, which can effectively reduce the impact during motor start-up and equipment operation. When facing load start-up and stop and impact loads, the elasticity of the pulley can greatly reduce the damage to the internal parts of the reducer caused by the impact, and reduce wear and the frequency of failure.

[0016] (2) In this utility model, by mounting the motor on the bracket at the upper end of the reducer body, a compact integrated structure is formed, which significantly reduces the footprint of the equipment.

[0017] (3) In this utility model, the motor and the reducer are integrated into one unit, making the equipment more regular and compact in shape, and improving the overall aesthetics of the equipment.

[0018] (4) In this utility model, the protective cover set on the outside of the pulley and belt can effectively prevent personnel from contacting the running pulley, greatly reducing the risk of production accidents caused by personnel accidentally touching the belt.

[0019] (5) In this utility model, the height adjustment mechanism set on the bracket can easily adjust the height of the motor by rotating the first nut and the second nut, thereby tightening the belt that has become loose due to wear; this design allows the belt to continue to maintain good transmission status by simply adjusting the height after the equipment has been used for a period of time without replacing the pulley. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the vertical pulley system for easy tension adjustment in this utility model.

[0021] In the diagram: 1. Reducer body; 2. Motor; 3. First pulley; 4. Second pulley; 5. Belt; 6. Protective cover; 7. First mounting plate; 8. Second mounting plate; 9. Third mounting plate; 10. First threaded post; 11. First nut; 12. Second threaded post; 13. Second nut; 14. Third nut. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Figure 1This is a structural diagram of the vertical pulley system for easy tension adjustment in this utility model. Please refer to... Figure 1 The diagram illustrates a preferred embodiment of a vertical pulley system with adjustable tension, mounted on a reducer body 1. The system includes a bracket, a motor 2, a height adjustment mechanism, a first pulley 3, a second pulley 4, and a belt 5. The bracket is located at the upper end of the reducer body 1, and the motor 2 is mounted on it. The first pulley 3 is mounted on the output shaft of the motor 2, and the second pulley 4 is mounted on the input shaft of the reducer body 1. The belt 5 connects the first pulley 3 and the second pulley 4. The height adjustment mechanism is located on the bracket. In this embodiment, the motor 2 and the reducer are connected via the first pulley 3, the second pulley 4, and the belt 5. The belt 5 provides excellent elasticity, effectively buffering the impact during motor 2 startup and equipment operation, preventing direct impact on the reducer, and significantly improving the equipment's service life. Under conditions of frequent start-stop under load, this flexible connection method can significantly reduce the wear rate of internal components of the reducer, decrease the frequency of equipment failures, and extend the overall service life of the equipment.

[0026] In this embodiment, the motor 2 is mounted on the upper part of the reducer body 1 by means of a bracket, forming a relatively compact integrated structure between the motor 2 and the reducer. Compared with the existing distributed layout, this layout greatly reduces the floor space occupied by the equipment and effectively solves the problem of insufficient installation space. In some production sites with limited space, it can make more rational use of space, facilitate the layout and installation of equipment, and improve the space utilization rate of the production site.

[0027] In this embodiment, by integrating the motor 2 and the reducer into a single unit, the equipment becomes more regular and compact in appearance, improving its overall aesthetics. This design can enhance the product's market competitiveness to a certain extent.

[0028] In this embodiment, the height of the motor 2 can be adjusted by setting a height adjustment mechanism, thereby tightening the belt 5 and solving the problem of loosening caused by wear of the belt 5.

[0029] Furthermore, as a preferred embodiment, a protective cover 6 is also included. The protective cover 6 is provided on the outer side of the first pulley 3, the second pulley 4, and the belt 5. The protective cover 6 is connected to the motor 2 and the bracket. The protective cover 6 is bolted to the third mounting plate 9 in the bracket, and the protective cover 6 is welded to the second mounting plate 8 in the bracket or bolted to it. The protective cover 6 effectively prevents personnel from contacting the operating belt 5, reducing the risk of production accidents caused by accidental contact with the belt 5, providing reliable safety for operators, and improving the safety of the production process.

[0030] Furthermore, as a preferred embodiment, the protective cover 6 has several heat dissipation holes on its side wall. This design does not affect the protective function of the protective cover 6, while effectively promoting heat dissipation during equipment operation. The first pulley 3, the second pulley 4, and the belt 5 generate heat through friction during operation. The heat dissipation holes accelerate airflow, promptly removing this heat and preventing overheating from affecting the equipment's performance or shortening its lifespan, thus ensuring stable equipment operation.

[0031] Furthermore, as a preferred embodiment, the bracket includes a first mounting plate 7, a second mounting plate 8, and a third mounting plate 9. The first mounting plate 7 and the second mounting plate 8 are respectively mounted on the upper end of the reducer body 1, and the third mounting plate 9 is located above the first mounting plate 7 and the second mounting plate 8. In this embodiment, the first mounting plate 7, the second mounting plate 8, and the third mounting plate 9 are all L-shaped. The first mounting plate 7 and the second mounting plate 8 are connected to the reducer body 1 by bolts or welding. Specifically, the first mounting plate 7 is bolted to one side of the upper end of the reducer body 1, and the second mounting plate 8 is welded to the other side of the upper end of the reducer body 1, or it can be bolted. The motor 2 can be bolted to the third mounting plate 9. The third mounting plate 9 serves to support the motor 2 and the mounting height adjustment mechanism. When installing the third mounting plate 9, it must be ensured that it is parallel to the first and second mounting plates 8 and that its position is accurate to ensure the installation accuracy of subsequent components.

[0032] Furthermore, as a preferred embodiment, the height adjustment mechanism includes a first threaded post 10 and a first nut 11. The first threaded post 10 passes through the first mounting plate 7 and the third mounting plate 9, and two first nuts 11 are provided on the first threaded post 10, located on both sides of the third mounting plate 9. In this embodiment, the first mounting plate 7 and the third mounting plate 9 have through holes that mate with the first threaded post 10. By passing the first threaded post 10 through the first mounting plate 7 and the third mounting plate 9, and rotating the first nuts 11, the height of the third mounting plate 9 relative to the first mounting plate 7 can be adjusted, thereby achieving fine-tuning of the height of the motor 2 and adjusting the tension of the belt 5. For example, when it is necessary to raise the height of the third mounting plate 9, the first nut 11 on the upper side of the third mounting plate 9 can be loosened first, and then the first nut 11 on the lower side of the third mounting plate 9 can be rotated, causing the first nut 11 to push the third mounting plate 9 upward, thereby adjusting the height of the motor 2. When it is necessary to lower the height of motor 2, the first nut 11 located on the lower side of the third mounting plate 9 can be rotated directly. The third mounting plate 9 will automatically follow the first nut 11 and descend under the action of gravity, thereby lowering the height of motor 2. Then, the first nut 11 on the upper side of the third mounting plate 9 can be tightened.

[0033] In this embodiment, the lower end of the first threaded post 10 can directly abut against the upper end of the reducer body 1. A baffle can be provided at the upper end of the reducer body 1 directly opposite the first threaded post 10 to prevent the lower end of the first threaded post 10 from damaging the reducer body 1. In other embodiments, the lower end of the first threaded post 10 can be welded and fixed to the through hole on the first mounting plate 7.

[0034] Furthermore, as a preferred embodiment, the height adjustment mechanism further includes a second threaded post 12, a second nut 13, and a third nut 14. The second threaded post 12 penetrates the third mounting plate 9 and the second mounting plate 8. Two second nuts 13 and one third nut 14 are disposed on the second threaded post 12. The two second nuts 13 are located on both sides of the second mounting plate 8, and the third nut 14 abuts against the lower end of the third mounting plate 9. In this embodiment, see... Figure 1 As shown, two second nuts 13 are located on the upper and lower sides of the second mounting plate 8, and a third nut 14 is used to lock the second threaded post 12 onto the third mounting plate 9. The upper ends of the first threaded post 10 and the second threaded post 12 are provided with limit caps to abut against the upper surface of the third mounting plate 9, or to prevent the third mounting plate 9 from disengaging from the first threaded post 10 and the second threaded post 12.

[0035] In this embodiment, through holes that mate with the second threaded post 12 are provided on the second mounting plate 8 and the third mounting plate 9. Two second nuts 13 are used to lock the second threaded post 12 onto the second mounting plate 8. When the position of the third mounting plate 9 needs to be adjusted, for example, when the height of the third mounting plate 9 needs to be increased, the second nut 13 on the lower side of the second mounting plate 8 can be loosened first, and then the second nut 13 on the upper side of the second mounting plate 8 can be tightened. This causes the second nut 13 to push the second threaded post 12 upward, thereby adjusting the position of the third mounting plate 9 and adjusting the height of the motor 2. Then, the second nut 13 on the lower side of the second mounting plate 8 can be tightened. When the height of the third mounting plate 9 needs to be decreased, the second nut 13 on the upper side of the second mounting plate 8 can be loosened first. At this time, the third mounting plate 9 can push the second threaded post 12 downward under its own weight. Then, the second nut 13 on the lower side of the second mounting plate 8 can be tightened. In this embodiment, when adjusting the height of the third mounting plate 9, the first nut 11 and the second nut 13 need to be operated simultaneously to ensure that the third mounting plate 9 can be raised and lowered smoothly.

[0036] During operation, after the motor 2 starts, it drives the first pulley 3 to rotate. The first pulley 3 drives the second pulley 4 to rotate via the belt 5, thereby driving the input shaft of the reducer body 1 to rotate. During this process, the heat generated by the friction between the first pulley 3, the second pulley 4, and the belt 5 is discharged through the heat dissipation holes on the protective cover 6. When the equipment runs for a long time, the belt 5 may wear and loosen. At this time, the height of the third mounting plate 9 can be adjusted by rotating the corresponding first nut 11 and second nut 13, thereby adjusting the height of the motor 2 and tightening the belt 5.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vertical pulley system with easily adjustable tension, for mounting on a reducer body, characterized in that, The device includes a bracket, a motor, a height adjustment mechanism, a first pulley, a second pulley, and a belt. The bracket is located at the upper end of the reducer body, the motor is mounted on the bracket, the first pulley is mounted on the output shaft of the motor, the second pulley is mounted on the input shaft of the reducer body, and the belt connects the first pulley and the second pulley. The height adjustment mechanism is mounted on the bracket.

2. The vertical pulley system with convenient tension adjustment as described in claim 1, characterized in that, It also includes protective covers, which are provided on the outer side of the first pulley, the second pulley, and the belt.

3. The vertical pulley system with convenient tension adjustment as described in claim 2, characterized in that, The protective cover is connected to the bracket.

4. The vertical pulley system with convenient tension adjustment as described in claim 2, characterized in that, The protective cover has several heat dissipation holes on its side wall.

5. The vertical pulley system with convenient tension adjustment as described in claim 1, characterized in that, The bracket includes a first mounting plate, a second mounting plate, and a third mounting plate. The first mounting plate and the second mounting plate are respectively mounted on the upper end of the reducer body, and the third mounting plate is located above the first mounting plate and the second mounting plate.

6. The vertical pulley system with easily adjustable tension as described in claim 5, characterized in that, The height adjustment mechanism includes a first threaded post and a first nut. The first threaded post passes through the first mounting plate and the third mounting plate. Two first nuts are provided on the first threaded post and are located on both sides of the third mounting plate.

7. The vertical pulley system with easily adjustable tension as described in claim 5, characterized in that, The height adjustment mechanism further includes a second threaded post, a second nut, and a third nut. The second threaded post passes through the third mounting plate and the second mounting plate. Two second nuts and one third nut are provided on the second threaded post. The two second nuts are located on both sides of the second mounting plate, and the third nut abuts against the lower end of the third mounting plate.

8. The vertical pulley system with easily adjustable tension as described in claim 5, characterized in that, The first mounting plate and the second mounting plate are connected to the reducer body by bolts or welding.

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