Variable speed ratio v-belt pulley

Abstract

The utility model relates to V type belt pulley technical field, concretely relates to a kind of V type belt pulley of fine tuning speed ratio, including mounting bracket, connecting seat, the outer surface of mounting bracket is fixedly connected with fixed block, the inside fixed connection of fixed block has first motor, the output of first motor is fixedly connected with first gear, the inside rotationally connected of mounting bracket has connecting shaft, the outer surface of connecting shaft is fixedly connected with second gear, second gear is engagedly connected with first gear, the inside of second gear is equipped with multiple limit slots, the inside slidingly connected of mounting bracket has sliding block, the outer surface of sliding block is fixedly connected with slide bar, slide bar is slidingly connected in the inside of limit slot, the upper surface of sliding block is also fixedly connected with connecting rod, and the top of connecting rod is fixedly connected with belt adjusting frame.The utility model is provided with two gears, under the cooperation of two gears, belt adjusting frame can be adjusted size according to circumstances, and its size determines the tension degree of belt.

Description

Technical Field

[0001] This utility model relates to the field of V-belt pulley technology, specifically a V-belt pulley with adjustable speed ratio. Background Technology

[0002] V-belt pulleys are common mechanical transmission components, typically used to transmit power and torque via belts. Their design feature is their ability to work effectively with V-belts, providing stable transmission. When used together, the belt's sides contact the V-grooves of the pulley, achieving high transmission efficiency and load-bearing capacity. V-belt pulleys are widely used in various mechanical equipment, such as automotive engines, home appliances, agricultural machinery, and industrial equipment.

[0003] The existing V-type pulleys are not convenient for automatically adjusting the belt tension according to the usage conditions, and require manual adjustment, which is quite troublesome. At the same time, it is not convenient to change the distance between the two pulleys according to the adjustment of the tension, and cannot be used flexibly.

[0004] Therefore, a V-belt pulley with adjustable speed ratio is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a V-type pulley with adjustable speed ratio, which solves the problems of inconvenience in automatically adjusting belt tension according to usage conditions, requiring manual adjustment which is cumbersome, and the inconvenience in changing the distance between the two pulleys according to tension adjustment, thus limiting its flexible use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: including a mounting frame and a connecting seat, a fixing block is fixedly connected to the outer surface of the mounting frame, a first motor is fixedly connected to the inside of the fixing block, a first gear is fixedly connected to the output end of the first motor, a connecting shaft is rotatably connected to the inside of the mounting frame, a second gear is fixedly connected to the outer surface of the connecting shaft, the second gear meshes with the first gear, and multiple limiting grooves are opened inside the second gear;

[0007] The mounting bracket has a slider internally slidably connected to it, and a slide rod is fixedly connected to the outer surface of the slider. The slide rod is slidably connected inside the limiting groove. A connecting rod is also fixedly connected to the upper surface of the slider, and a belt adjustment frame is fixedly connected to the top of the connecting rod.

[0008] Preferably, a second motor is fixedly connected to the outer surface of the connecting seat, a threaded rod is fixedly connected to the output end of the second motor, a movable block is threadedly connected to the outer surface of the threaded rod, a support block is fixedly connected to the upper surface of the movable block, and a support plate is fixedly connected to the upper surface of the support block.

[0009] Preferably, a support frame is fixedly connected to the upper surface of the support plate, a rotating shaft is rotatably connected inside the support frame, a pulley body is fixedly connected to the outer surface of the rotating shaft, and a belt body is provided between the pulley body and the belt adjustment frame.

[0010] Preferably, a limiting ring is fixedly connected to the other end of the slide rod, and the outer surface of the limiting ring is slidably connected to the outer surface of the second gear.

[0011] Preferably, a limiting rod is fixedly connected inside the connecting seat, and the outer surface of the limiting rod is slidably connected to the inside of the movable block.

[0012] Preferably, the outer surface of each connecting rod is slidably connected to the inside of the mounting frame, maintaining the movement trajectory of the belt adjustment frame.

[0013] Preferably, the outer surface of the movable block is slidably connected to the inside of the connecting seat.

[0014] Compared with the prior art, this utility model provides a V-belt pulley with a finely adjustable speed ratio, which has the following advantages:

[0015] 1. This V-type pulley with adjustable speed ratio has two gears. With the cooperation of the two gears, the size of the belt adjustment frame can be adjusted according to the situation, and its size determines the tension of the belt.

[0016] 2. This V-type pulley with adjustable speed ratio is equipped with a second motor. The output end of the second motor drives the threaded rod to move the support frame, which in turn moves the pulley, allowing the distance between the two pulleys to be adjusted according to the belt tension. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the belt adjustment frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal disassembled structure of the mounting bracket of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the connector of this utility model.

[0021] In the diagram: 1. Mounting bracket; 2. Fixing block; 3. First motor; 4. First gear; 5. Connecting shaft; 6. Second gear; 7. Limiting groove; 8. Sliding block; 9. Sliding rod; 10. Connecting rod; 11. Belt adjusting frame; 12. Connecting seat; 13. Second motor; 14. Threaded rod; 15. Movable block; 16. Support block; 17. Support plate; 18. Support frame; 19. Rotating shaft; 20. Pulley body; 21. Belt body; 22. Limiting ring; 23. Limiting rod. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figure 1 - Figure 4 In this embodiment, a V-belt pulley with adjustable speed ratio includes a mounting frame 1 and a connecting seat 12. A fixing block 2 is fixedly connected to the outer surface of the mounting frame 1. A first motor 3 is fixedly connected inside the fixing block 2. A first gear 4 is fixedly connected to the output end of the first motor 3. A connecting shaft 5 is rotatably connected inside the mounting frame 1. A second gear 6 is fixedly connected to the outer surface of the connecting shaft 5. The second gear 6 meshes with the first gear 4. Multiple limiting grooves 7 are opened inside the second gear 6.

[0026] The mounting bracket 1 has a slider 8 internally slidably connected to it. A slide rod 9 is fixedly connected to the outer surface of the slider 8, and the slide rod 9 is slidably connected inside the limiting groove 7. A connecting rod 10 is also fixedly connected to the upper surface of the slider 8. A belt adjusting frame 11 is fixedly connected to the top end of the connecting rod 10. A limiting ring 22 is fixedly connected to the other end of the slide rod 9. The outer surface of the limiting ring 22 is slidably connected to the outer surface of the second gear 6. The outer surface of each connecting rod 10 is slidably connected inside the mounting bracket 1, maintaining the movement trajectory of the belt adjusting frame 11. The outer surface of the movable block 15 is slidably connected inside the connecting seat 12.

[0027] The first motor 3 inside the starting fixed block 2 drives the first gear 4 to rotate through the output end of the first motor 3. Since the first gear 4 is meshed with the second gear 6, the first gear 4 can drive the second gear 6 to rotate together. When the second gear 6 rotates, multiple sliding rods 9 will slide inside the limiting groove 7 and slide along the direction of the limiting groove 7. The sliding rods 9 drive the slider 8 to slide inside the mounting frame 1. The slider 8 drives the connecting rod 10 and the belt adjustment frame 11 to move. Sliding along the inside of the mounting frame 1 will change the size of the belt adjustment frame 11. The size of the belt adjustment frame 11 determines the tension of the belt body 21.

[0028] A second motor 13 is fixedly connected to the outer surface of the connecting seat 12. A threaded rod 14 is fixedly connected to the output end of the second motor 13. A movable block 15 is threadedly connected to the outer surface of the threaded rod 14. A support block 16 is fixedly connected to the upper surface of the movable block 15. A support plate 17 is fixedly connected to the upper surface of the support block 16.

[0029] A support frame 18 is fixedly connected to the upper surface of the support plate 17. A rotating shaft 19 is rotatably connected inside the support frame 18. A pulley body 20 is fixedly connected to the outer surface of the rotating shaft 19. A belt body 21 is provided between the pulley body 20 and the belt adjusting frame 11. A limit rod 23 is fixedly connected inside the connecting seat 12. The outer surface of the limit rod 23 is slidably connected to the inside of the movable block 15.

[0030] The output end of the second motor 13 drives the threaded rod 14 to rotate inside the connecting seat 12. The rotation of the threaded rod 14 causes the movable block 15 to move. The movable block 15 drives the support block 16 and the support plate 17 to move together. The support plate 17 drives the support frame 18 to move, which in turn drives the rotating shaft 19 and the pulley body 20 to move. This changes the distance between the belt adjustment frame 11 and the pulley body 20. The belt body 21 drives the pulley body 20 and the rotating shaft 19 to rotate. The limiting ring 22 limits the sliding rod 9, and the limiting rod 23 prevents the movable block 15 from shaking when it moves.

[0031] The working principle of the above embodiment is as follows: When it is necessary to adjust the tension of the belt body 21, the first motor 3 inside the fixing block 2 is started. The output end of the first motor 3 drives the first gear 4 to rotate. Since the first gear 4 is meshed with the second gear 6, the first gear 4 can drive the second gear 6 to rotate together. When the second gear 6 rotates, multiple sliding rods 9 will slide inside the limiting groove 7 and slide along the direction of the limiting groove 7. The sliding rods 9 drive the slider 8 to slide inside the mounting frame 1. The slider 8 drives the connecting rod 10 and the belt adjusting frame 11 to move. Sliding along the inside of the mounting frame 1 will change the size of the belt adjusting frame 11. The tension of the belt body 21 is determined. At the same time, the output end of the second motor 13 drives the threaded rod 14 to rotate inside the connecting seat 12. The rotation of the threaded rod 14 will drive the movable block 15 to move. The movable block 15 will drive the support block 16 and the support plate 17 to move together. The support plate 17 will drive the support frame 18 to move, which will drive the rotating shaft 19 and the pulley body 20 to move. This will change the distance between the belt adjusting frame 11 and the pulley body 20. The belt body 21 can drive the pulley body 20 and the rotating shaft 19 to rotate. The limit ring 22 limits the slide rod 9, and the limit rod 23 prevents the movable block 15 from shaking when it moves.

[0032] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A V-belt pulley with adjustable speed ratio, characterized in that: The device includes a mounting bracket (1) and a connecting seat (12). A fixing block (2) is fixedly connected to the outer surface of the mounting bracket (1). A first motor (3) is fixedly connected inside the fixing block (2). A first gear (4) is fixedly connected to the output end of the first motor (3). A connecting shaft (5) is rotatably connected inside the mounting bracket (1). A second gear (6) is fixedly connected to the outer surface of the connecting shaft (5). The second gear (6) meshes with the first gear (4). Multiple limiting grooves (7) are opened inside the second gear (6). The mounting bracket (1) has a slider (8) slidably connected inside, and a slide rod (9) is fixedly connected to the outer surface of the slider (8). The slide rod (9) is slidably connected inside the limiting groove (7). A connecting rod (10) is also fixedly connected to the upper surface of the slider (8). A belt adjustment frame (11) is fixedly connected to the top of the connecting rod (10).

2. The V-belt pulley with adjustable speed ratio according to claim 1, characterized in that: The outer surface of the connecting seat (12) is fixedly connected to a second motor (13), the output end of the second motor (13) is fixedly connected to a threaded rod (14), the outer surface of the threaded rod (14) is threadedly connected to a movable block (15), the upper surface of the movable block (15) is fixedly connected to a support block (16), and the upper surface of the support block (16) is fixedly connected to a support plate (17).

3. The V-belt pulley with adjustable speed ratio according to claim 2, characterized in that: A support frame (18) is fixedly connected to the upper surface of the support plate (17). A rotating shaft (19) is rotatably connected inside the support frame (18). A pulley body (20) is fixedly connected to the outer surface of the rotating shaft (19). A belt body (21) is provided between the pulley body (20) and the belt adjustment frame (11).

4. The V-belt pulley with adjustable speed ratio according to claim 1, characterized in that: The other end of the slide rod (9) is fixedly connected to a limiting ring (22), and the outer surface of the limiting ring (22) is slidably connected to the outer surface of the second gear (6).

5. A V-belt pulley with adjustable speed ratio according to claim 2, characterized in that: The connecting seat (12) is fixedly connected to a limiting rod (23), and the outer surface of the limiting rod (23) is slidably connected to the inside of the movable block (15).

6. The V-belt pulley with adjustable speed ratio according to claim 1, characterized in that: The outer surface of each connecting rod (10) is slidably connected to the interior of the mounting bracket (1), maintaining the movement trajectory of the belt adjustment frame (11).

7. A V-belt pulley with adjustable speed ratio according to claim 2, characterized in that: The outer surface of the movable block (15) is slidably connected to the inside of the connecting seat (12).

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