Improved structure of belt wheel

Abstract

The utility model belongs to the field of transmission belt wheels, particularly relates to an improved structure of a belt wheel, and aims to solve the problems that an existing belt wheel is fixed in structure, can only be integrally replaced when wheel teeth are seriously abraded, cannot independently replace the wheel teeth and is poor in applicability. A plurality of replacement grooves are formed in the inner walls of the gear teeth, a plurality of control grooves are formed in the wheel disc, replacement rods are slidably installed in the control grooves correspondingly, the replacement rods are installed in the corresponding replacement grooves, threaded grooves are formed in one ends of the replacement rods correspondingly, a plurality of connecting grooves are formed in one side of the wheel disc, and rotating holes are formed in the inner walls of one sides of the connecting grooves correspondingly. And lead screws are rotationally installed in the multiple rotating holes correspondingly, and one ends of the lead screws are installed in the corresponding threaded grooves in a threaded mode. The belt wheel is reasonable in structure, convenient to operate, flexible in structure and good in applicability, and the wheel teeth can be replaced independently.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission pulleys, in particular to an improved structure of a pulley. Background Art

[0002] Synchronous pulleys are generally made of steel, aluminum alloy, cast iron, brass, and other materials. They are widely used in automobiles, textiles, printing and packaging equipment, financial machinery, stage lighting, communications, food machinery, various precision machine tools, and other fields. Synchronous pulley transmission consists of a closed ring belt with equally spaced teeth on the inner surface and a corresponding pulley. When in motion, the belt teeth mesh with the tooth grooves of the pulley to transmit motion and power. It is a meshing transmission, and thus has various characteristics of gear transmission, chain transmission, and flat belt transmission.

[0003] However, the existing pulley structure is fixed, and when the gear teeth are severely worn, they can only be replaced as a whole, and the gear teeth cannot be replaced individually, so the applicability is poor. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an improved structure of a pulley.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An improved structure of a pulley comprises a wheel disc, wherein gear teeth are installed on the wheel disc, a plurality of replacement grooves are provided on the inner wall of the gear teeth, a plurality of control grooves are provided on the wheel disc, replacement rods are slidably installed in the plurality of control grooves, the replacement rods are installed in the corresponding replacement grooves, a threaded groove is provided at one end of the plurality of replacement rods, a plurality of connecting grooves are provided on one side of the wheel disc, a rotating hole is provided on the inner wall of one side of the plurality of connecting grooves, a screw rod is rotatably installed in the plurality of rotating holes, one end of the screw rod is threadedly installed in the corresponding threaded groove, a rotating wheel is installed in the plurality of connecting grooves, and a plurality of A compression spring groove is provided on one side of the rotating wheel, and the other end of the screw rod is slidably installed in the corresponding compression spring groove, a compression spring is fixedly connected to the inner wall of the compression spring groove, one end of the compression spring is fixedly connected to the screw rod, a plurality of limit grooves are provided on the inner wall of one side of the connecting groove, two limit blocks are fixedly installed on one side of the rotating wheel, the limit blocks are installed in the corresponding limit grooves, a rotating groove is provided on the inner wall of one side of the connecting groove, a turntable is rotatably installed in the rotating groove, two auxiliary rods are fixedly installed on one side of the turntable, an auxiliary groove is provided on one side of the rotating wheel, and the auxiliary rod is slidably installed in the corresponding auxiliary groove.

[0007] Preferably, an auxiliary groove is provided on the inner wall of the compression spring groove, an auxiliary block is fixedly mounted on the screw rod, and the auxiliary block is slidably connected in the auxiliary groove.

[0008] Preferably, movable grooves are provided on the inner walls on both sides of the control groove, and movable blocks are fixedly installed on both sides of the replacement rod, and the movable blocks are slidably installed in the corresponding movable grooves.

[0009] Preferably, a spring groove is provided on one side of the two moving blocks, and a card block is slidably installed in the two spring grooves. A spring is fixedly installed on one end of the two card blocks, and one end of the spring is fixedly connected to the inner wall of the corresponding spring groove. Two card slots are provided on the inner wall of one side of the two moving grooves, and the card block is installed in the corresponding card slots.

[0010] Preferably, a rotating groove is opened on the inner wall of one side of the rotating groove, and a fixed block is fixedly installed on one side of the turntable. The fixed block is rotatably installed in the rotating groove. When the turntable rotates, it drives the fixed block to rotate in the rotating groove, which can stabilize the position of the turntable when it rotates.

[0011] Preferably, the cross section of the replacement groove is square, and the cross section of the replacement rod is square.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The present invention moves the rotating wheel, and the rotating wheel slides on the corresponding screw rod, so that the screw rod pulls the compression spring, and the rotating wheel drives the limit block to slide out of the limit groove, so that the fixed restriction of the rotating wheel can be cancelled, and at the same time, the auxiliary rod slides in the auxiliary groove, and the rotating wheel is rotated, and the screw rod can control the movement of the replacement rod. After the replacement rod slides out of the replacement groove, the position of the gear teeth and the wheel disc can be cancelled. At the same time, the replacement rod drives the moving block to move, and the clamping block slides to the position of the clamping groove. The elastic action of the spring can drive the clamping block to be inserted into the clamping groove, which can temporarily fix the position of the replacement rod, so as to facilitate the replacement of the gear teeth.

[0014] The utility model has reasonable structure and convenient operation; the pulley structure is flexible, the gear teeth can be replaced individually, and the applicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of part A proposed by the utility model;

[0017] Figure 3 This is a schematic structural diagram of part B proposed in the utility model.

[0018] In the figure: 1. wheel disc; 2. gear teeth; 3. replacement groove; 4. replacement rod; 5. screw rod; 6. rotating wheel; 7. limit block; 8. compression spring; 9. turntable; 10. auxiliary rod; 11. limit groove; 12. moving block; 13. slot; 14. block; 15. spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the utility model patent specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate the existence of at least one.

[0021] Reference Figure 1-3 An improved structure of a pulley comprises a wheel disc 1, a gear 2 is installed on the wheel disc 1, a plurality of replacement grooves 3 are provided on the inner wall of the gear 2, a plurality of control grooves are provided on the wheel disc 1, a replacement rod 4 is slidably installed in the plurality of control grooves, the replacement rod 4 is installed in the corresponding replacement groove 3, a thread groove is provided at one end of the plurality of replacement rods 4, a plurality of connection grooves are provided on one side of the wheel disc 1, a rotating hole is provided on the inner wall of one side of the plurality of connection grooves, a screw rod 5 is rotatably installed in the plurality of rotating holes, one end of the screw rod 5 is threadedly installed in the corresponding thread groove, a rotating wheel 6 is installed in the plurality of connection grooves, and a plurality of rotating wheels 6 are provided. A compression spring groove is provided on one side of the connecting groove, and the other end of the screw rod 5 is slidably installed in the corresponding compression spring groove. A compression spring 8 is fixedly connected to the inner wall of the compression spring groove, and one end of the compression spring 8 is fixedly connected to the screw rod 5. A plurality of limit grooves 11 are provided on the inner wall of one side of the connecting groove, and two limit blocks 7 are fixedly installed on one side of the rotating wheel 6. The limit blocks 7 are installed in the corresponding limit grooves 11. A rotating groove is provided on the inner wall of one side of the connecting groove, and a turntable 9 is rotatably installed in the rotating groove. Two auxiliary rods 10 are fixedly installed on one side of the turntable 9. An auxiliary groove is provided on one side of the rotating wheel 6, and the auxiliary rod 10 is slidably installed in the corresponding auxiliary groove.

[0022] In this embodiment, an auxiliary groove is provided on the inner wall of the compression spring groove, and an auxiliary block is fixedly mounted on the screw rod 5, and the auxiliary block is slidably connected in the auxiliary groove.

[0023] In this embodiment, moving grooves are provided on both inner walls of the control groove, and moving blocks 12 are fixedly installed on both sides of the changing rod 4, and the moving blocks 12 are slidably installed in the corresponding moving grooves.

[0024] In this embodiment, a spring groove is provided on one side of the two moving blocks 12, and a clamping block 14 is slidably installed in the two spring grooves. A spring 15 is fixedly installed at one end of the two clamping blocks 14, and one end of the spring 15 is fixedly connected to the inner wall of the corresponding spring groove. Two clamping grooves 13 are provided on the inner wall of one side of the two moving grooves, and the clamping block 14 is installed in the corresponding clamping groove 13.

[0025] In this embodiment, a rotating groove is opened on the inner wall of one side of the rotating groove, and a fixed block is fixedly installed on one side of the turntable 9. The fixed block is rotatably installed in the rotating groove. When the turntable 9 rotates, it drives the fixed block to rotate in the rotating groove, which can stabilize the position of the turntable 9 when it rotates.

[0026] In this embodiment, the cross section of the replacement groove 3 is square, and the cross section of the replacement rod 4 is square.

[0027] In this embodiment, by moving the rotating wheel 6, the rotating wheel 6 slides on the corresponding screw rod 5, so that the screw rod 5 pulls the compression spring 8, the compression spring 8 undergoes elastic deformation, and the rotating wheel 6 drives the limit block 7 to slide out of the limit groove, and the fixed restriction of the rotating wheel 6 can be cancelled. At the same time, the auxiliary rod 10 slides in the auxiliary groove, and the rotating wheel 6 is rotated. The rotating wheel 6 drives the screw rod 5 to rotate, and the screw rod 5 can control the movement of the replacement rod 4. After the replacement rod 4 slides out of the replacement groove 3, the position of the gear 2 and the wheel disc 1 can be cancelled. At the same time, the replacement rod 4 drives the moving block 12 to move, and the moving block 12 drives the clamping block 14 to move. The clamping block 14 slides to the position of the clamping groove 13. The elastic action of the spring 15 can drive the clamping block 14 to be inserted into the clamping groove 13, which can temporarily fix the position of the replacement rod 4, making it convenient to replace the gear 2.

[0028] The technical progress achieved by the utility model compared with the prior art is: the utility model has a reasonable structure and is easy to operate. The pulley structure is flexible, the gear teeth 2 can be replaced separately, and the applicability is good.

Claims

1. An improved pulley structure, comprising a pulley disc (1), characterized in that: The wheel disc (1) is provided with gear teeth (2), the inner wall of the gear teeth (2) is provided with a plurality of replacement grooves (3), the wheel disc (1) is provided with a plurality of control grooves, replacement rods (4) are slidably installed in the plurality of control grooves, the replacement rods (4) are installed in the corresponding replacement grooves (3), one end of the plurality of replacement rods (4) is provided with a threaded groove, one side of the wheel disc (1) is provided with a plurality of connection grooves, one side inner wall of the plurality of connection grooves is provided with a rotating hole, a screw rod (5) is rotatably installed in the plurality of rotating holes, one end of the screw rod (5) is threadedly installed in the corresponding threaded groove, a rotating wheel (6) is installed in the plurality of connection grooves, and one side of the plurality of rotating wheels (6) is provided with a A compression spring groove is provided, and the other end of the screw rod (5) is slidably installed in the corresponding compression spring groove. A compression spring (8) is fixedly connected to the inner wall of the compression spring groove, and one end of the compression spring (8) is fixedly connected to the screw rod (5). A plurality of limit grooves (11) are provided on the inner wall of one side of the connecting groove. Two limit blocks (7) are fixedly installed on one side of the rotating wheel (6), and the limit blocks (7) are installed in the corresponding limit grooves (11). A rotating groove is provided on the inner wall of one side of the connecting groove, and a rotating disk (9) is rotatably installed in the rotating groove. Two auxiliary rods (10) are fixedly installed on one side of the rotating disk (9). An auxiliary groove is provided on one side of the rotating wheel (6), and the auxiliary rod (10) is slidably installed in the corresponding auxiliary groove.

2. The improved structure of a pulley according to claim 1, characterized in that: An auxiliary groove is provided on the inner wall of the compression spring groove, and an auxiliary block is fixedly mounted on the screw rod (5), and the auxiliary block is slidably connected in the auxiliary groove.

3. The improved structure of a pulley according to claim 1, characterized in that: The inner walls on both sides of the control groove are provided with movable grooves, and movable blocks (12) are fixedly installed on both sides of the replacement rod (4), and the movable blocks (12) are slidably installed in the corresponding movable grooves.

4. The improved structure of a pulley according to claim 3, characterized in that: One side of the two moving blocks (12) is provided with a spring groove, and a clamping block (14) is slidably installed in the two spring grooves. One end of the two clamping blocks (14) is fixedly installed with a spring (15), and one end of the spring (15) is fixedly connected to the inner wall of the corresponding spring groove. Two clamping grooves (13) are provided on the inner wall of one side of the two moving grooves, and the clamping block (14) is installed in the corresponding clamping groove (13).

5. The improved structure of a pulley according to claim 1, characterized in that: A rotating groove is provided on an inner wall of one side of the rotating groove, and a fixed block is fixedly installed on one side of the rotating disk (9), and the fixed block is rotatably installed in the rotating groove.

6. The improved structure of a pulley according to claim 1, characterized in that: The cross section of the replacement groove (3) is square, and the cross section of the replacement rod (4) is square.

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