PU belt transmission device

Abstract

The utility model relates to the technical field of transmission devices, in particular to a PU belt transmission device. The belt wheel comprises a belt wheel body, a circular ring is fixedly connected to the front face of the belt wheel body, a threaded hole is formed in the arc face of the circular ring, a disassembling assembly is arranged on the front face of the belt wheel body, a limiting assembly is arranged on one side of the belt wheel body, a stepped hole is formed in the back of the belt wheel body, and a rubber gasket is arranged on the inner wall of the stepped hole. The dismounting assembly comprises dismounting holes formed in the front faces of the belt wheels, dismounting blocks are arranged on the inner walls of the dismounting holes, sliding holes are formed in the arc faces of the dismounting blocks, and positioning blocks are slidably connected to the two sides of the inner walls of the sliding holes. The problems that a crowbar needs to be inserted into an installation groove in the belt wheel, then the PU belt is pried up for disassembly, and the whole disassembly process is very inconvenient due to the fact that the PU belt is tightened on the belt wheel are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission devices, in particular to a PU belt transmission device. Background Art

[0002] The transmission device is used to transmit the PU belt. The transmission device consists of a pulley, a step hole, a rubber gasket, a ring, and a threaded hole. When installing the PU belt to the transmission device, install the PU belt into the installation groove on the pulley, squeeze it onto the rotating shaft through the rubber gasket in the step hole for positioning, and then tighten the pulley and the rotating shaft to prevent sliding by screwing the bolts into the threaded hole and the rotating shaft.

[0003] The inventor found in his daily work that when the transmission device is in use, since the PU belt is installed on two pulleys, when replacing the PU belt on the pulley, it is necessary to insert a crowbar into the installation groove on the pulley and then pry up the PU belt for removal. Since the PU belt is tightened on the pulley, the entire disassembly process is very inconvenient. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that in actual use, since the PU belt is installed on two pulleys, when replacing the PU belt on the pulley, it is necessary to insert a crowbar into the installation groove on the pulley and then pry up the PU belt for removal. Since the PU belt is tightened on the pulley, the entire removal process is very inconvenient. Therefore, a PU belt transmission device is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a PU belt transmission device comprises a pulley, a circular ring is fixedly connected to the front side of the pulley, a threaded hole is provided on the arc surface of the circular ring, a disassembly assembly is provided on the front side of the pulley, a limiting assembly is provided on one side of the pulley, a step hole is provided on the back of the pulley, a rubber gasket is provided on the inner wall of the step hole, the disassembly assembly comprises a disassembly hole provided on the front side of the pulley, a disassembly block is provided on the inner wall of the disassembly hole, a sliding hole is provided on the arc surface of the disassembly block, positioning blocks are slidably connected to the inner wall of the sliding hole on both sides, and positioning grooves are provided on both sides of the inner wall of the disassembly hole.

[0006] The effect achieved by the above components is: by setting up a disassembly assembly, when removing the PU belt from the pulley, the positioning blocks on both sides are dragged from the sliding hole to separate them from the positioning grooves, and then the disassembly blocks are used to separate them from the disassembly holes, and then the PU belt is pushed to separate it from the disassembly holes, thereby facilitating the removal of the PU belt from the pulley.

[0007] Preferably, a spring 1 is fixedly connected between the two positioning blocks, and the spring 1 is located in the sliding hole.

[0008] The effect achieved by the above components is: by setting spring 1, the positioning block is reset.

[0009] Preferably, a first magnetic piece is fixedly connected to one side of the inner wall of the positioning groove, and a second magnetic piece is fixedly connected to the left end of the positioning block.

[0010] The effect achieved by the above components is: by arranging the magnetic sheet 1 and the magnetic sheet 2 close to each other, they attract each other, thereby assisting in limiting the positioning block.

[0011] Preferably, a sliding surface is provided on one side of the disassembly hole, and the magnetic sheet 1 and the magnetic sheet 2 attract each other when they are close to each other.

[0012] The effect achieved by the above components is that the auxiliary disassembly block is inserted into the disassembly hole by setting the sliding surface.

[0013] Preferably, the limiting assembly includes a hole groove 1 opened on the inner wall of the step hole, and the inner wall of the hole groove 1 is slidably connected with a support rod.

[0014] The effect achieved by the above components is: when it is necessary to assist the rubber gasket and the rotating shaft to limit their positions, the support rod in the hole moves downward to squeeze the rubber gasket, thereby increasing the resistance between the rubber gasket and the rotating shaft, thereby assisting the rubber gasket and the rotating shaft to limit their positions.

[0015] Preferably, a piston is fixedly connected to the upper end of the push rod, an air inlet hole is opened inside the pulley, and an air nozzle is installed on the left side of the pulley.

[0016] The effect achieved by the above components is: the air nozzle is connected to the air pump, so that the gas is filled into the air inlet hole and the hole groove 1, so that the piston moves downward, thereby causing the push rod to move downward.

[0017] Preferably, the upper end of the piston is fixedly connected to a second spring, and the other end of the second spring is fixed to the pulley.

[0018] The effect achieved by the above components is: by setting the second spring, the push rod is reset.

[0019] Preferably, the air inlet hole is communicated with the hole groove, and the air nozzle is used for connecting to an external air pump.

[0020] The effect achieved by the above components is: by setting the air nozzle, it is connected to an external air pump, so that air is filled into the air inlet.

[0021] In summary, the beneficial effects of the utility model are:

[0022] The utility model discloses a disassembly assembly, when disassembling the PU belt from the pulley, the positioning blocks on both sides are dragged from the sliding hole to separate from the positioning grooves, and then the disassembly blocks are used to separate the belt from the disassembly holes, and then the PU belt is pushed to separate from the disassembly holes, thereby facilitating the disassembly of the PU belt on the pulley. The utility model solves the problem that, because the PU belt is installed on two pulleys, when replacing the PU belt on the pulley, a crowbar needs to be inserted into the installation groove on the pulley, and then the PU belt is pried up for disassembly, and the whole disassembly process is very inconvenient because the PU belt is tightened on the pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the cross section of the disassembly component of the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the cross section of the limit assembly of the utility model;

[0026] Figure 4 For this utility model Figure 3 A is an enlarged schematic diagram of the three-dimensional structure.

[0027] Legend: 1. Pulley; 2. Disassembly assembly; 3. Limit assembly; 4. Ring; 5. Threaded hole; 6. Step hole; 7. Rubber gasket; 21. Disassembly hole; 22. Disassembly block; 23. Sliding hole; 24. Positioning block; 25. Positioning groove; 26. Spring 1; 27. Magnetic sheet 1; 28. Magnetic sheet 2; 29. ​​Sliding surface; 31. Hole groove 1; 32. Push rod; 33. Air inlet hole; 34. Air nozzle; 35. Piston; 36. Spring 2. DETAILED DESCRIPTION

[0028] Reference Figure 1 and Figure 3 As shown, the utility model provides a technical solution: a PU belt transmission device includes a pulley 1, a circular ring 4 is fixedly connected to the front of the pulley 1, a threaded hole 5 is provided on the arc surface of the circular ring 4, a disassembly component 2 is provided on the front of the pulley 1, a limiting component 3 is provided on one side of the pulley 1, a step hole 6 is provided on the back of the pulley 1, and a rubber gasket 7 is provided on the inner wall of the step hole 6.

[0029] The specific settings and functions of the disassembly component 2 and the limiting component 3 are described in detail below.

[0030] Reference Figure 2As shown, in this embodiment: the disassembly component 2 includes a disassembly hole 21 opened on the front side of the pulley 1, a disassembly block 22 is provided on the inner wall of the disassembly hole 21, a sliding hole 23 is provided on the arc surface of the disassembly block 22, and positioning blocks 24 are slidably connected to the inner wall of the sliding hole 23 on both sides, and positioning grooves 25 are provided on both sides of the inner wall of the disassembly hole 21. By setting the disassembly component 2, when the PU belt is disassembled from the pulley 1, the positioning blocks 24 on both sides are dragged from the sliding hole 23 to separate from the positioning grooves 25, and then the disassembly block 22 is used to separate it from the disassembly hole 21, and then the PU belt is pushed to separate it from the disassembly hole 21, thereby achieving In order to facilitate the removal of the PU belt on the pulley 1, a spring 26 is fixedly connected between the two positioning blocks 24, and the spring 26 is located in the slide hole 23. By setting the spring 26, the positioning block 24 is reset, and a magnetic piece 27 is fixedly connected to one side of the inner wall of the positioning groove 25, and a magnetic piece 28 is fixedly connected to the left end of the positioning block 24. By setting the magnetic piece 27 and the magnetic piece 28 close to each other, they attract each other, which assists in limiting the positioning block 24. A sliding surface 29 is provided on one side of the disassembly hole 21. When the magnetic piece 27 and the magnetic piece 28 are close to each other, they attract each other. By setting the sliding surface 29, the disassembly block 22 is assisted to be inserted into the disassembly hole 21.

[0031] Reference Figure 3 and Figure 4 As shown, in this embodiment: the limiting component 3 includes a hole groove 31 opened on the inner wall of the step hole 6, and the inner wall of the hole groove 31 is slidably connected with a push rod 32. When it is necessary to assist the rubber gasket 7 and the rotating shaft to limit, the push rod 32 in the hole groove 1 moves downward to squeeze the rubber gasket 7, thereby increasing the resistance between the rubber gasket 7 and the rotating shaft, thereby assisting the rubber gasket 7 and the rotating shaft to limit, and the upper end of the push rod 32 is fixedly connected with a piston 35, and the interior of the pulley 1 is provided with an air inlet hole 33, and the left side of the pulley 1 is provided with a push rod 32. An air nozzle 34 is provided, and the air nozzle 34 is connected to an air pump so that gas is filled into the air inlet hole 33 and the hole groove 1 31, so that the piston 35 moves downward, thereby causing the push rod 32 to move downward. The upper end of the piston 35 is fixedly connected to a spring 2 36, and the other end of the spring 2 36 is fixed to the pulley 1. By setting the spring 2 36, the push rod 32 is reset, and the air inlet hole 33 is connected to the hole groove 1 31. The air nozzle 34 is used for an external air pump. By setting the air nozzle 34 and connecting it to an external air pump, air is filled into the air inlet hole 33.

[0032] Working principle:

[0033] When installing the PU belt to the transmission device, install the PU belt into the installation groove on the pulley 1, squeeze it onto the rotating shaft through the rubber gasket 7 in the step hole 6 to limit it, and then screw the bolts into the threaded hole 5 on the ring 4 and the rotating shaft to fasten the pulley 1 to the rotating shaft to prevent sliding. When removing the PU belt from the pulley 1, drag the positioning blocks 24 on both sides from the sliding hole 23 to separate them from the positioning groove 25, and then use the disassembly block 22 to separate it from the disassembly hole 21, and then push the PU belt to separate it from the disassembly hole 21, so as to facilitate the removal of the PU belt on the pulley 1. By setting a spring 26, the positioning The positioning block 24 is reset by setting the magnetic piece 1 27 and the magnetic piece 2 28 close to each other so that they attract each other, thereby assisting in limiting the positioning block 24. By setting the sliding surface 29, the auxiliary disassembly block 22 is inserted into the disassembly hole 21. When it is necessary to assist the rubber gasket 7 and the rotating shaft to limit the position, the air nozzle 34 is connected to the air pump to allow gas to be filled into the air inlet hole 33 and the hole groove 1 31, so that the piston 35 moves downward, thereby causing the push rod 32 in the hole groove 1 to move downward, squeezing the rubber gasket 7, thereby increasing the resistance between the rubber gasket 7 and the rotating shaft, and then assisting the rubber gasket 7 and the rotating shaft to limit the position. By setting the spring 2 36, the push rod 32 is reset.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A PU belt transmission device, comprising a pulley (1), characterized in that: The front face of the pulley (1) is fixedly connected to a circular ring (4), the circular arc surface of the circular ring (4) is provided with a threaded hole (5), the front face of the pulley (1) is provided with a disassembly assembly (2), one side of the pulley (1) is provided with a limit assembly (3), the back of the pulley (1) is provided with a step hole (6), the inner wall of the step hole (6) is provided with a rubber gasket (7), the disassembly assembly (2) comprises a disassembly hole (21) provided on the front face of the pulley (1), the inner wall of the disassembly hole (21) is provided with a disassembly block (22), the circular arc surface of the disassembly block (22) is provided with a sliding hole (23), the inner wall of the sliding hole (23) is slidably connected with positioning blocks (24), and the inner wall of the disassembly hole (21) is provided with positioning grooves (25) on both sides.

2. The PU belt transmission device according to claim 1, characterized in that: A spring 1 (26) is fixedly connected between the two positioning blocks (24), and the spring 1 (26) is located in the sliding hole (23).

3. The PU belt transmission device according to claim 2, characterized in that: A first magnetic piece (27) is fixedly connected to one side of the inner wall of the positioning groove (25), and a second magnetic piece (28) is fixedly connected to the left end of the positioning block (24).

4. The PU belt transmission device according to claim 3, characterized in that: A sliding surface (29) is provided on one side of the disassembly hole (21), and the first magnetic sheet (27) and the second magnetic sheet (28) attract each other when they are close to each other.

5. The PU belt transmission device according to claim 4, characterized in that: The limiting assembly (3) comprises a hole groove (31) formed on the inner wall of the step hole (6), and a stop rod (32) is slidably connected to the inner wall of the hole groove (31).

6. The PU belt transmission device according to claim 5, characterized in that: The upper end of the push rod (32) is fixedly connected to a piston (35), an air inlet hole (33) is provided inside the pulley (1), and an air nozzle (34) is installed on the left side of the pulley (1).

7. The PU belt transmission device according to claim 6, characterized in that: The upper end of the piston (35) is fixedly connected to a second spring (36), and the other end of the second spring (36) is fixed to the pulley (1).

8. The PU belt transmission device according to claim 7, characterized in that: The air inlet hole (33) is in communication with the hole groove 1 (31), and the air nozzle (34) is used for connecting to an external air pump.

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