Belt pulley convenient to disassemble and replace

Abstract

The utility model relates to the field of belt pulleys, in particular to a belt pulley convenient to disassemble and replace, which comprises a connecting shaft, two mounting blocks and a belt pulley main body, sliding grooves are formed in the surfaces, close to each other, of the mounting blocks, a clamping block is slidably connected to the inner wall of each sliding groove, and two clamping grooves are formed in the outer surface of the connecting shaft. The inner wall of each clamping groove is slidably connected with the outer surface of the corresponding clamping block, when the connecting cylinder is moved, the clamping blocks make contact with the connecting shaft, the clamping blocks move through the slopes on the surfaces of the clamping blocks, the guide rods are driven to move, the springs are compressed through the guide rods, and when the clamping blocks are matched with the corresponding clamping grooves, the springs are reset through springback of the springs, so that the clamping blocks are clamped in the clamping grooves. And on the contrary, the connection between the clamping block and the clamping groove can be relieved by pulling the guide rod, and then the effect that the belt pulley can be conveniently installed and detached through the device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a pulley which is easy to disassemble and replace. Background Art

[0002] Pulleys are hub-type parts, which are generally relatively large in size. The manufacturing process is generally based on casting and forging. Generally, larger sizes are designed by casting, and the material is generally cast iron, and cast steel is rarely used; generally, smaller sizes can be designed by forging, and the material is steel.

[0003] Pulleys are mainly used in situations where power is transmitted over long distances, such as the output of power from small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathes, forging machines, the transmission of power from some small horsepower motorcycles, the transmission of power from agricultural machinery, air compressors, reducers, speed reducers, generators, cotton gins, etc.

[0004] However, in the existing pulley, after long-term use, the pulley will appear wear, rust and the like, and it is necessary to promptly maintain and replace it. However, the existing pulley mounting structure cannot quickly disassemble and replace the pulley, which affects the use of the pulley.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0006] In view of the above background technology, the prior art has the disadvantages that the pulley cannot be quickly disassembled and replaced in the pulley installation structure, which affects the use of the pulley.

[0007] The utility model discloses a pulley that is easy to disassemble and replace, comprising a connecting shaft, two mounting blocks and a pulley body, each of the mounting blocks having a side close to each other is provided with a sliding groove, the inner wall of each sliding groove is slidably connected to a clamping block, the outer surface of the connecting shaft is provided with two clamping grooves, the inner wall of each clamping groove is slidably connected to the outer surface of the corresponding clamping block, each of the clamping blocks has a side away from each other fixedly connected to a guide rod, the outer surface of each guide rod is fixedly connected to a spring, and the other end of each spring is fixedly connected to a fixed block.

[0008] Furthermore, the outer surface of each fixed block is fixedly connected to the inner wall of the corresponding sliding groove, the outer surface of each clamping block is fixedly connected to the sliding block, and the outer surface of each sliding block is slidably connected to the inner wall of the corresponding sliding groove.

[0009] Furthermore, the outer surface of each guide rod is slidably connected to the inner wall of the corresponding mounting block, and the front surface of each mounting block is fixedly connected to the shell.

[0010] Furthermore, the inner wall of each housing is rotatably connected to a worm, the outer surface of each worm is meshed with two worm wheels, and the inner wall of each worm wheel is fixedly connected to a bidirectional threaded rod.

[0011] Furthermore, two connecting blocks are provided inside each of the sliding grooves, the outer surface of each of the bidirectional threaded rods is threadedly connected to the inner wall of the corresponding connecting block, and the inner wall of each of the connecting blocks is fixedly connected to a clamping block.

[0012] Furthermore, the outer surface of the connecting shaft is slidably connected to a connecting tube, the outer surface of the connecting shaft is fixedly connected to a limiting ring, the outer surface of the connecting tube is fixedly connected to reinforcing ribs arranged at equal distances, and the other end of each reinforcing rib is fixedly connected to the inner wall of the pulley body.

[0013] Furthermore, the front sides of the two reinforcing ribs are fixedly connected to a support frame, and the front side of each support frame is fixedly connected to the back side of the corresponding mounting block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model provides components such as a card block, a spring, and a fixed block. When the connecting cylinder is moved, the card block contacts the connecting shaft. The inclined surface on the surface of the card block causes the card block to move, and drives the guide rod to move. The guide rod compresses the spring. When the card block is adapted to the corresponding card slot, the spring rebounds and resets the card block, thereby achieving a connection between the card block and the card slot. Conversely, the guide rod is pulled to release the connection between the card block and the card slot, thereby achieving the effect that the device can easily install and replace the pulley.

[0016] 2. The utility model is provided with components such as a worm, a worm wheel, a bidirectional threaded rod, a connecting block, and a clamping block. When the clamping block is connected to the corresponding clamping slot, the worm wheel is driven to rotate by rotating the corresponding worm, and the corresponding bidirectional threaded rod is driven to rotate by the worm wheel. The threaded connection between the bidirectional threaded rod and the corresponding connecting block is realized, so that the connecting block drives the clamping block to move, and then the clamping block realizes the clamping and limiting effect of the guide rod, so that the device can achieve the stabilization effect of the pulley after installation, and prevent the clamping block from falling off from the clamping slot when the pulley rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the connection relationship between the limit ring and the connecting shaft of the utility model;

[0021] Figure 4 This is a structural diagram of the connection relationship between the clamping block and the sliding slot of the utility model.

[0022] In the figure: 1. Connecting shaft; 2. Slot; 3. Mounting block; 4. Sliding slot; 5. Sliding block; 6. Slot; 7. Guide rod; 8. Spring; 9. Fixed block; 10. Housing; 11. Worm; 12. Worm wheel; 13. Bidirectional threaded rod; 14. Connecting block; 15. Clamping block; 16. Support frame; 17. Connecting cylinder; 18. Reinforcing rib; 19. Pulley body; 20. Limiting ring. DETAILED DESCRIPTION

[0023] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0024] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The utility model is a pulley that is easy to disassemble and replace, including a connecting shaft 1, two mounting blocks 3 and a pulley body 19. A sliding groove 4 is opened on the side of each mounting block 3 that is close to each other. The positioning effect of the sliding groove 4 is achieved by the side of the mounting blocks 3 that are close to each other. The inner wall of each sliding groove 4 is slidably connected with a card block 6, and the card block 6 is placed inside the corresponding sliding groove 4, and the card block 6 and the corresponding sliding groove 4 are set to be in sliding connection, and the limiting effect of the card block 6 is achieved by the contour of the sliding groove 4.

[0025] like Figure 3 As shown, two slots 2 are provided on the outer surface of the connecting shaft 1, and the positioning effect of the slots 2 is achieved through the outer surface of the connecting shaft 1. The inner wall of each slot 2 is slidably connected to the outer surface of the corresponding block 6, and the block 6 is adapted to the corresponding slot 2, thereby achieving the limiting effect of the connecting shaft 1.

[0026] In a preferred embodiment, each side of the block 6 away from each other is fixedly connected to a guide rod 7, and the guide rod 7 is installed on the side of the block 6 away from each other to achieve a positioning and installation effect of the guide rod 7, and the outer surface of each guide rod 7 is fixedly connected to a spring 8, and the spring 8 is installed on the outer surface of the guide rod 7 to achieve a positioning and installation effect of the spring 8, and the other end of each spring 8 is fixedly connected to a fixed block 9, and the fixed block 9 is placed on the other end of the spring 8, and the positioning and installation effect of the fixed block 9 is achieved through the other end of the spring 8, and the inclined surface of the surface of the block 6, when the block 6 contacts the connecting shaft 1, the effect of moving the block 6 is achieved, and the compression spring 8 is accumulated and reset by the rebound of the spring 8, which can achieve the reset effect of the block 6 and the effect of connecting the block 6 to the card slot 2.

[0027] In this embodiment, the outer surface of each fixed block 9 is fixedly connected to the inner wall of the corresponding sliding groove 4, and the fixed block 9 is connected to the inner wall of the corresponding sliding groove 4, and a fixed connection is set between them, thereby achieving a limiting effect on the fixed block 9, and then achieving a limiting effect on the spring 8, and the outer surface of each clamping block 6 is fixedly connected with a sliding block 5, and the sliding block 5 is installed on the surface of the corresponding clamping block 6, and a fixed connection is set between them, and the outer surface of each sliding block 5 is slidingly connected to the inner wall of the corresponding sliding groove 4, and the sliding block 5 is set to a sliding connection with the inner wall of the corresponding sliding groove 4, and the limiting effect of the sliding block 5 can be achieved by the contour of the sliding groove 4.

[0028] like Figure 4 As shown, the outer surface of each guide rod 7 is slidably connected to the inner wall of the corresponding mounting block 3, and the guide rod 7 is slidably connected to the inner wall of the corresponding mounting block 3, and the limiting effect of the guide rod 7 is achieved through the mounting block 3. The front of each mounting block 3 is fixedly connected to the shell 10, and the shell 10 is installed on the front of the mounting block 3 to achieve the positioning and installation effect of the shell 10.

[0029] In a preferred embodiment, the inner wall of each shell 10 is rotatably connected to a worm 11, and the worm 11 is placed on the inner wall of the shell 10, and a rotatable connection is set between them to achieve a limiting effect on the worm 11. The outer surface of each worm 11 is meshed with two worm wheels 12, and the worm wheels 12 are placed on the side of the worm 11 and meshed with each other. The synchronous rotation effect of the worm wheels 12 can be achieved by rotating the corresponding worm 11. The inner wall of each worm wheel 12 is fixedly connected to a bidirectional threaded rod 13, and the bidirectional threaded rod 13 is installed on the inner wall of the corresponding worm wheel 12. Through the fixed connection between them, the rotation effect of the bidirectional threaded rod 13 can be achieved by rotating the worm wheel 12.

[0030] In this embodiment, two connecting blocks 14 are provided inside each sliding groove 4, and the connecting blocks 14 are placed inside the sliding groove 4. The outer surface of each bidirectional threaded rod 13 is threadedly connected to the inner wall of the corresponding connecting block 14, and the bidirectional threaded rod 13 is connected to the corresponding connecting block 14. The relative movement effect of the connecting block 14 can be achieved by rotating the bidirectional threaded rod 13. The inner wall of each connecting block 14 is fixedly connected with a clamping block 15, and the clamping block 15 is installed on the inner wall of the connecting block 14 to achieve the positioning effect of the clamping block 15. The clamping effect of the guide rod 7 is achieved by the relative clamping of the clamping block 15.

[0031] In a preferred embodiment, the outer surface of the connecting shaft 1 is slidably connected to a connecting cylinder 17, the connecting cylinder 17 is placed on the surface of the connecting shaft 1, and a sliding connection is set between them to achieve the limitation of the connecting cylinder 17, the outer surface of the connecting shaft 1 is fixedly connected to a limiting ring 20, the limiting ring 20 is installed on the surface of the connecting shaft 1, and the limiting effect of the connecting cylinder 17 is achieved through the limiting ring 20, the outer surface of the connecting cylinder 17 is fixedly connected to equidistantly arranged reinforcing ribs 18, the other end of each reinforcing rib 18 is fixedly connected to the inner wall of the pulley body 19, the reinforcing ribs 18 are installed and the pulley body 19 is connected to the corresponding reinforcing ribs 18, and a complete pulley is formed by the pulley body 19, the reinforcing ribs 18 and the connecting cylinder 17.

[0032] In this embodiment, the front sides of two reinforcing ribs 18 are fixedly connected to support frames 16, and the support frames 16 are installed on the front sides of the corresponding reinforcing ribs 18 to achieve a positioning and installation effect of the support frames 16. The front sides of each support frame 16 are fixedly connected to the back sides of the corresponding mounting blocks 3, and the corresponding mounting blocks 3 are connected to the corresponding support frames 16, so that the supporting effect of the mounting blocks 3 is achieved through the support frames 16.

[0033] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A pulley that is easy to disassemble and replace, comprising a connecting shaft (1), two mounting blocks (3) and a pulley body (19), characterized in that: Each of the mounting blocks (3) is provided with a sliding groove (4) on a side close to each other, and the inner wall of each sliding groove (4) is slidably connected to a clamping block (6). The outer surface of the connecting shaft (1) is provided with two clamping grooves (2), and the inner wall of each clamping groove (2) is slidably connected to the outer surface of the corresponding clamping block (6). Each of the clamping blocks (6) is fixedly connected to a guide rod (7) on a side away from each other, and the outer surface of each guide rod (7) is fixedly connected to a spring (8), and the other end of each spring (8) is fixedly connected to a fixed block (9).

2. The pulley that is easy to disassemble and replace according to claim 1, characterized in that: The outer surface of each fixed block (9) is fixedly connected to the inner wall of the corresponding sliding groove (4), the outer surface of each clamping block (6) is fixedly connected to the sliding block (5), and the outer surface of each sliding block (5) is slidably connected to the inner wall of the corresponding sliding groove (4).

3. The pulley that is easy to disassemble and replace according to claim 1, characterized in that: The outer surface of each guide rod (7) is slidably connected to the inner wall of the corresponding mounting block (3), and the front surface of each mounting block (3) is fixedly connected to a housing (10).

4. The pulley that is easy to disassemble and replace according to claim 3, characterized in that: The inner wall of each housing (10) is rotatably connected to a worm (11), the outer surface of each worm (11) is meshed with two worm wheels (12), and the inner wall of each worm wheel (12) is fixedly connected to a bidirectional threaded rod (13).

5. The pulley that is easy to disassemble and replace according to claim 4, characterized in that: Two connecting blocks (14) are provided inside each of the sliding grooves (4), the outer surface of each of the bidirectional threaded rods (13) is threadedly connected to the inner wall of the corresponding connecting block (14), and the inner wall of each of the connecting blocks (14) is fixedly connected to a clamping block (15).

6. The pulley that is easy to disassemble and replace according to claim 1, characterized in that: The outer surface of the connecting shaft (1) is slidably connected to a connecting cylinder (17), the outer surface of the connecting shaft (1) is fixedly connected to a limiting ring (20), the outer surface of the connecting cylinder (17) is fixedly connected to reinforcing ribs (18) arranged at equal distances, and the other end of each reinforcing rib (18) is fixedly connected to the inner wall of the pulley body (19).

7. The easily removable pulley according to claim 6, characterized in that: The front sides of the two reinforcing ribs (18) are fixedly connected to the support frame (16), and the front side of each support frame (16) is fixedly connected to the back side of the corresponding mounting block (3).

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