Multi-groove belt pulley capable of increasing number of grooves conveniently

Abstract

The utility model discloses a multi-groove belt pulley convenient for increasing the number of grooves, which belongs to the technical field of belt pulleys and comprises a first belt pulley and a second belt pulley, a third belt pulley is arranged between the first belt pulley and the second belt pulley, and a second clamping plate and a first clamping plate are respectively fixed at the end parts of two sides of the third belt pulley. A first clamping plate is fixed to the side, attached to each other, of the first belt wheel and the third belt wheel, and a second clamping plate is fixed to the side, attached to each other, of the second belt wheel and the third belt wheel. When an operator adds a belt, the operator does not need to dismount the belt pulley and mount the belt pulley with a large number of grooves on the rotating shaft, so that the usability of the operator is improved, and meanwhile, the stability of mounting the third belt pulley on the first belt pulley is improved; the strength of the third belt pulley between the first belt pulley and the second belt pulley is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulley structures, and particularly relates to a multi-groove pulley that is convenient for increasing the number of grooves. Background Technique

[0002] A pulley is an indispensable component in a mechanical transmission system, mainly used for transmitting power and adjusting the rotational speed. Through its cooperation with a belt, it can transmit power from one rotating shaft to another rotating shaft, thereby realizing the power transmission between different mechanical components. Therefore, it can be seen that existing pulleys basically meet people's usage requirements, but there are still the following problems.

[0003] When an operator uses a pulley, the operator first installs the pulley on the rotating shaft, and then the operator sleeves the belt on the pulley. When the pulley rotates, the pulley drives another pulley to rotate through the belt. Since the number of grooves on a general pulley is fixed, when the operator needs to adjust the number of belts, the operator may need to disassemble the pulley and replace it with a pulley with more grooves. For this reason, we propose a multi-groove pulley that is convenient for increasing the number of grooves. Content of the Utility Model

[0004] The utility model provides a multi-groove pulley that is convenient for increasing the number of grooves. By the operator installing the third pulley between the second pulley and the first pulley, the number of grooves of the pulley is increased. When the operator adds a belt, it is no longer necessary for the operator to disassemble the pulley and then install a pulley with more grooves on the rotating shaft, improving the usability of the operator.

[0005] To achieve the above object, the utility model provides the following technical solution: A multi-groove pulley that is convenient for increasing the number of grooves, including a first pulley and a second pulley. A third pulley is arranged between the first pulley and the second pulley. Second clamping plates and first clamping plates are respectively fixed at both end portions of the third pulley. A first clamping plate is fixed at one side of the first pulley that is mutually attached to the third pulley. A second clamping plate is fixed at one side of the second pulley that is mutually attached to the third pulley. Clamping blocks are fixed around the second clamping plate, and a clamping groove opened on the first clamping plate is sleeved on the surface of the clamping block.

[0006] Further, spring grooves are opened around the second clamping plate, and pull rods are embedded in the spring grooves. Springs are wound around the surfaces of the pull rods, and both end portions of the springs abut between the surface of the pull rod and the inner wall of the spring groove. Clamping sleeves are fixed at the end portions of the pull rods, and positioning grooves opened on the outer side wall of the first clamping plate are sleeved at the end portions of the clamping sleeves.

[0007] Further, a threaded rod penetrates through the middle of the clamping sleeve, and a threaded groove opened on the first clamping plate is sleeved at the end portion of the threaded rod.

[0008] Furthermore, the ferrule is set to be "L"-shaped, and the positioning groove is set to be an "L"-shaped groove that matches the ferrule.

[0009] Furthermore, fixing blocks are fixed around the clamping block, and fixing grooves opened on the inner wall of the clamping groove are sleeved on the surfaces of the fixing blocks.

[0010] Furthermore, the clamping blocks are set to be rectangular blocks, the clamping grooves are set to be rectangular grooves, and the rectangular grooves set in the clamping grooves match the rectangular blocks set in the clamping blocks.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. The multi-groove pulley facilitating the increase of groove numbers is provided with a clamping block and a clamping groove. By the operator holding the third pulley, the third pulley drives the clamping block to move through the second clamping plate, so that the clamping block is inserted into the clamping groove, and the third pulley is installed on the first pulley. Subsequently, the operator holds the second pulley, and the second pulley drives the clamping block to move through the second clamping plate installed on the second pulley, and inserts the clamping block into the clamping block opened in the first clamping plate fixed on the third pulley, and installs the third pulley between the first pulley and the second pulley, thereby increasing the groove numbers of the pulley. When the operator adds a belt, it is no longer necessary for the operator to disassemble the pulley and then install the pulley with more groove numbers on the rotating shaft, improving the usability of the operator.

[0013] 2. The multi-groove pulley facilitating the increase of groove numbers is provided with a ferrule and a positioning groove. After the operator installs the third pulley on the first pulley, the operator inserts the ferrule into the positioning groove opened in the first clamping plate to fix the first clamping plate and the second clamping plate, increasing the stability of the third pulley installed on the first pulley and improving the strength of the third pulley installed between the first pulley and the second pulley. Description of the Drawings

[0014] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0015] Figure 2 It is a side view sectional structure schematic diagram of the present utility model;

[0016] Figure 3 It is a top view sectional structure schematic diagram of the spring groove and the pull rod of the present utility model;

[0017] Figure 4 It is a top view sectional structure schematic diagram of the clamping groove and the clamping block of the present utility model;

[0018] Figure 5 It is of the present utility model Figure 1 The enlarged structure schematic diagram of part A;

[0019] Figure 6 The enlarged structural schematic diagram of part B in Figure 3 the present utility model;

[0020] Figure 7 The enlarged structural schematic diagram of part C in Figure 4 the present utility model.

[0021] In the figure:

[0022] 1. First pulley; 2. Second pulley; 3. Third pulley; 4. First clamping plate; 5. Second clamping plate; 6. Card slot; 7. Card block; 8. Positioning slot; 9. Threaded rod; 10. Threaded groove; 11. Card sleeve; 12. Spring; 13. Pull rod; 14. Spring groove; 15. Fixed groove; 16. Fixed block. Specific embodiments

[0023] In order to further understand the content, characteristics and effects of the present utility model, the following embodiments are hereby cited and described in detail in conjunction with the accompanying drawings.

[0024] Embodiment:

[0025] Please refer to Figure 1 - Figure 7, A multi-groove pulley facilitating the increase of groove numbers, comprising a first pulley 1 and a second pulley 2. A third pulley 3 is arranged between the first pulley 1 and the second pulley 2. A second clamping plate 5 and a first clamping plate 4 are respectively welded to both end portions of the third pulley 3. The first clamping plate 4 is welded to the side where the first pulley 1 and the third pulley 3 are mutually attached. The second clamping plate 5 is welded to the side where the second pulley 2 and the third pulley 3 are mutually attached. Clamping blocks 7 are welded to the periphery of the second clamping plate 5, and a clamping groove 6 opened on the first clamping plate 4 is sleeved on the surface of the clamping blocks 7. When the operator needs to add the third pulley 3, the operator first pulls the first pulley 1. The first pulley 1 drives the first clamping plate 4 to move, and the first clamping plate 4 drives the clamping groove 6 to move, so that the clamping groove 6 moves out from the surface of the clamping blocks 7 arranged on the second pulley 2, separating the first pulley 1 and the second pulley 2. Subsequently, the operator holds the third pulley 3, and the third pulley 3 drives the second clamping plate 5 fixed on the third pulley 3 to move, aligning the second clamping plate 5 with the clamping groove 6 arranged on the first pulley 1. Then the operator pushes the third pulley 3, and the third pulley 3 drives the clamping blocks 7 to move, inserting the clamping blocks 7 into the clamping groove 6 opened on the first pulley 1, installing the third pulley 3 on the first pulley 1. Subsequently, the operator holds the second pulley 2, and the second pulley 2 drives the clamping blocks 7 arranged on the second pulley 2 to move, aligning the clamping blocks 7 with the clamping groove 6 arranged on the third pulley 3. Then the operator holds the second pulley 2, and the second pulley 2 drives the clamping blocks 7 to move, inserting the clamping blocks 7 into the clamping groove 6 opened on the third pulley 3, thereby installing the second pulley 2 on the third pulley 3, and installing the first pulley 1, the second pulley 2 and the third pulley 3 together, thus increasing the groove numbers of the pulley. When the operator adds a belt, it is no longer necessary for the operator to disassemble the pulley and then install a pulley with more groove numbers on the rotating shaft, improving the practicality of the operator.

[0026] In other embodiments, spring grooves 14 are provided on all sides of the second clamping plate 5, and pull rods 13 are embedded in the spring grooves 14. Springs 12 are wound on the surfaces of the pull rods 13, and the ends of the springs 12 are abutted between the surfaces of the pull rods 13 and the inner walls of the spring grooves 14. Sleeves 11 are welded on the ends of the pull rods 13, and the ends of the sleeves 11 are sleeved on the positioning grooves 8 provided on the outer wall of the first clamping plate 4. The sleeves 11 are all set to be "L"-shaped, and the positioning grooves 8 are all set to be "L"-shaped grooves that match the sleeves 11. When the operator installs the third pulley 3 on the first pulley 1, the operator first pulls the sleeve 11, and the sleeve 11 drives the pull rod 13 to slide in the spring groove 14, and the pull rod 13 slides in the spring groove 14. When the third pulley 3 is installed on the first pulley 1, the operator releases the sleeve 11. After the sleeve 11 no longer squeezes the spring 12 through the pull rod 13, the elastic deformation of the spring 12 is restored, and the spring 12 pushes the pull rod 13 to move, and the pull rod 13 drives the sleeve 11 to move, so that the sleeve 11 is inserted into the positioning groove 8, thereby limiting the connection between the first pulley 1 and the third pulley 3, and preventing the third pulley 3 from sliding on the surface of the first pulley 1 and falling off.

[0027] In other embodiments, a threaded rod 9 passes through the middle of the sleeve 11, and the end of the threaded rod 9 is sleeved with a threaded groove 10 opened on the first clamping plate 4. When the sleeve 11 is inserted into the positioning groove 8 and the sleeve 11 is sleeved on the surfaces of the first clamping plate 4 and the second clamping plate 5, the operator takes the threaded rod 9, and after the threaded rod 9 passes through the sleeve 11, the end of the threaded rod 9 is threadedly matched with the threaded groove 10, so that the threaded rod 9 fixes the sleeve 11 on the first clamping plate 4 and the second clamping plate 5, to prevent the sleeve 11 from falling off from the positioning groove 8 due to the action of inertia when the first pulley 1, the second pulley 2 and the third pulley 3 drive the second clamping plate 5 to rotate.

[0028] In other embodiments, fixing blocks 16 are welded around the card block 7, and the surface of the fixing block 16 is sleeved with fixing grooves 15 opened on the inner wall of the card slot 6. When the card block 7 is inserted into the card slot 6, the card block 7 drives the fixing block 16 to move. After the fixing block 16 moves to the inner wall of the card slot 6, the inner wall of the card slot 6 abuts on the surface of the fixing block 16. After the fixing block 16 abuts on the inner wall of the card slot 6, the inner wall of the card slot 6 squeezes the fixing block 16, so that the fixing block 16 is elastically deformed. After the fixing block 16 is elastically deformed, the fixing block 16 avoids the card slot 6. When the card block 7 drives the fixing block 16 to move to the front end of the fixing groove 15, the fixing block 16 is no longer squeezed by the inner wall of the card slot 6, and the elastic deformation of the fixing block 16 is restored. The fixing block 16 is inserted into the fixing groove 15. By inserting the fixing block 16 into the fixing groove 15, the fixing block 16 and the fixing groove 15 increase the friction of the card block 7 inserted into the card slot 6, thereby improving the stability of the card block 7 installed in the card slot 6.

[0029] In other embodiments, the card blocks 7 are all configured as rectangular blocks, the card slots 6 are all configured as rectangular grooves, and the rectangular grooves configured in the card slots 6 match the rectangular blocks configured in the card blocks 7, so that the surface of the card blocks 7 and the inner walls of the card slots 6 fit each other, thereby increasing the stability of the card blocks 7 when inserted into the card slots 6.

[0030] Although the 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

1. A multi-groove pulley for increasing the number of grooves, comprising a first pulley (1) and a second pulley (2), characterized in that: A third pulley (3) is arranged between the first pulley (1) and the second pulley (2); a second clamping plate (5) and a first clamping plate (4) are respectively fixed to the two side ends of the third pulley (3); the first clamping plate (4) is fixed to one side where the first pulley (1) and the third pulley (3) are in contact with each other; the second clamping plate (5) is fixed to one side where the second pulley (2) and the third pulley (3) are in contact with each other; clamping blocks (7) are fixed around the second clamping plate (5); and the surface of the clamping block (7) is sleeved with a clamping groove (6) opened on the first clamping plate (4).

2. A multi-groove pulley for increasing the number of grooves according to claim 1, characterized in that: The second clamping plate (5) is provided with spring grooves (14) on all sides, and the spring grooves (14) are embedded with pull rods (13). The surfaces of the pull rods (13) are wound with springs (12), and the ends of the springs (12) are abutted between the surfaces of the pull rods (13) and the inner walls of the spring grooves (14). The ends of the pull rods (13) are fixed with clamping sleeves (11), and the ends of the clamping sleeves (11) are sleeved on the positioning grooves (8) provided on the outer wall of the first clamping plate (4).

3. A multi-groove pulley for increasing the number of grooves according to claim 2, characterized in that: A threaded rod (9) passes through the middle of the clamping sleeve (11), and the end of the threaded rod (9) is sleeved with a threaded groove (10) opened on the first clamping plate (4).

4. A multi-groove pulley for increasing the number of grooves according to claim 2, characterized in that: The ferrules (11) are all configured to be in an "L" shape, and the positioning grooves (8) are all configured to be "L"-shaped grooves that match the ferrules (11).

5. A multi-groove pulley for increasing the number of grooves according to claim 1, characterized in that: The clamping block (7) is fixed with fixing blocks (16) on all four sides, and the surface of the fixing blocks (16) is sleeved with fixing grooves (15) arranged on the inner wall of the clamping groove (6).

6. A multi-groove pulley for increasing the number of grooves according to claim 1, characterized in that: The clamping blocks (7) are all configured as rectangular blocks, the clamping slots (6) are all configured as rectangular grooves, and the rectangular grooves of the clamping slots (6) match the rectangular blocks of the clamping blocks (7).

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