Shock absorption and noise reduction belt pulley structure

Abstract

The utility model discloses a shock-absorbing and noise-reducing belt pulley structure, and aims to provide a shock-absorbing and noise-reducing belt pulley structure capable of reducing the vibration of the matching between a transmission belt and a hub. The device comprises hubs, a transmission belt, a mounting plate, a tensioning assembly and a limiting assembly, the two hubs are arranged, the two ends of the transmission belt are meshed with the hubs on the two sides respectively, the mounting plate is arranged on one sides of the hubs, the tensioning assembly is mounted on the mounting plate, one end of the tensioning assembly makes contact with the lower side of the transmission belt, and the other end of the tensioning assembly makes contact with the limiting assembly. And the limiting assembly is mounted on the mounting plate and is matched with the lower side of the transmission belt. The lifting device has the advantages that vibration caused by cooperation between the transmission belt and the hub is reduced, swing can be reduced, the transmission belt can be better tensioned, the lifting plate can be better moved, a belt groove of the hub can be cleaned, and heat dissipation can be accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of belt pulleys, in particular to a shock-absorbing and noise-reducing belt pulley structure. Background Art

[0002] As a mainstream transmission component, belt pulleys are widely used in various mechanical transmission mechanisms. When the belt pulley and the transmission belt move in cooperation, a phenomenon of tight and loose sides will occur, resulting in large vibrations of the belt pulley, which is not conducive to torque transmission and also hinders the smoothness of movement. In response to such phenomena, a variety of shock-absorbing belt pulleys have emerged on the market. Most of the existing belt pulleys are shock-absorbingly treated on the hub, lacking shock-absorbing treatment between the hub and the transmission belt.

[0003] Chinese Patent Grant Publication No.: CN213839469U, Grant Publication Date: July 30, 2021, discloses an automotive shock-absorbing belt pulley, including a belt pulley hub, characterized in that: a shaft hole is provided in the middle of the belt pulley hub, a cavity coaxial with the shaft hole is provided on one side surface of the belt pulley hub, a first shock-absorbing component is provided on the side surface of the belt pulley hub close to the cavity, a second shock-absorbing component is provided on the inner wall of the cavity, a third shock-absorbing component is provided on the outer side surface of the belt pulley hub, two symmetrically arranged fixing screw holes are provided on the front surface of the belt pulley hub, and a fixing screw is threadedly connected to each of the fixing screw holes, and the fixing screw penetrates through the belt pulley hub. The deficiency of this utility model is that this device only performs shock-absorbing treatment on the hub, lacking shock-absorbing treatment between the conveyor belt and the hub. Summary of the Utility Model

[0004] The utility model aims to overcome the deficiency in the prior art of lacking shock-absorbing treatment between the conveyor belt and the hub, and provides a shock-absorbing and noise-reducing belt pulley structure that reduces the vibration of the cooperation between the transmission belt and the hub.

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

[0006] A shock-absorbing and noise-reducing belt pulley structure includes a hub, a transmission belt, a mounting plate, a tensioning component and a limiting component. There are two hubs. The two ends of the transmission belt are respectively meshed with the hubs on both sides. The mounting plate is placed on one side of the hub. The tensioning component is installed on the mounting plate. One end of the tensioning component contacts the lower side of the transmission belt. The limiting component is installed on the mounting plate. The limiting component matches the lower side of the transmission belt.

[0007] A pulley main body is formed by the cooperation between the hub and the transmission belt. The hub cups on both sides are connected to the transmission belt. An installation plate is installed on one side of the hub. The tensioning assembly installed on the installation plate cooperates with the lower side of the transmission belt. When the cooperation between the transmission belt and the hub becomes loose, the tensioning wheel presses against the lower side of the transmission belt to ensure the tension of the transmission belt. When the transmission belt is tensioned, the cooperation between the transmission belt and the hub will be greatly reduced. At the same time, a limiting assembly is installed on the installation plate. The limiting assembly fits against the lower side of the transmission belt to limit the swing of the transmission belt. Limiting the swing of the transmission belt can also greatly reduce vibration noise, achieving the purpose of reducing the vibration of the cooperation between the transmission belt and the hub.

[0008] Preferably, the limiting assembly includes protruding rods. Two protruding rods are installed on the installation plate. The two protruding rods are respectively close to the hubs on both sides. Two limiting plates are installed on the protruding rods. The two limiting plates are respectively placed on the left and right sides of the lower transmission belt. One end of the protruding rod on the installation plate is connected to the installation plate, and the other end is placed above the lower side of the transmission belt. Two limiting plates are installed below the protruding rod. The two limiting plates are respectively placed on both sides of the transmission belt to limit the transmission belt between the two limiting plates. The left and right swing of the transmission belt is restricted by the limiting plates, thereby reducing vibration. And two protruding rods are installed on the installation plate. The two protruding rods are respectively close to the hubs on both sides. Being close to the hubs can reduce vibration at the cooperation between the transmission belt and the hub. Such a design can reduce swing.

[0009] Preferably, the tensioning assembly includes a tensioning wheel and a lifting plate. A sliding groove is installed on the lifting plate. A sliding block is installed on the installation plate. The lifting plate is slidably connected to the installation plate through the cooperation of the sliding block and the sliding groove. A rotating rod is provided on the tensioning wheel. One end of the rotating rod is connected to the tensioning wheel, and the other end of the rotating rod is rotatably connected to the lifting plate. The lifting plate of the tensioning assembly is installed on the installation plate. The lifting plate can slide up and down on the installation plate. The lifting plate drives the tensioning wheel to lift together. One end of the tensioning wheel cooperates with the transmission belt, and the other end of the tensioning wheel is rotatably connected to the lifting plate. When the tensioning wheel cooperates with the transmission belt, the tensioning wheel can rotate to reduce friction. The transmission belt is tensioned by the movement of the tensioning wheel. Such a design can better tension the transmission belt.

[0010] Preferably, a push plate is installed at the upper end of the lifting plate. A pneumatic cylinder is installed on the installation plate. The pneumatic end of the pneumatic cylinder is connected to the push plate. A push plate is installed at the upper end of the lifting plate. The push plate is connected to the pneumatic end of the pneumatic cylinder installed on the installation plate. The push plate and the lifting plate are driven by the pneumatic cylinder. Such a design can better move the lifting plate.

[0011] Preferably, a push rod is installed on the protruding cylinder, and a cleaning block is installed on the side of the push rod facing the wheel hub, and the cleaning block is matched with the wheel hub. By installing a push rod on the protruding rod, one end of the push rod is installed on the top surface of the protruding rod, the other end corresponds to the wheel hub on one side, a cleaning block is installed at the upper end of the push rod, and the cleaning block is placed in the wheel hub groove. The wheel hub can be cleaned by the cleaning block, which can prevent impurities from existing in the wheel hub and generating vibration noise. Such a design can clean the belt groove of the wheel hub.

[0012] Preferably, a fan is installed on the mounting plate, and the fan corresponds to the upper side of the transmission belt. A fan is installed on the mounting plate, and the fan corresponds to the joint of the upper side of the transmission belt and the wheel hub, which can dissipate heat from the transmission belt in time, accelerate the dissipation of heat generated by friction, reduce thermal deformation by dissipating heat from the transmission belt, and thus reduce vibration. Such a design can accelerate heat dissipation.

[0013] The beneficial effects of the present utility model are: reducing the vibration of the cooperation between the transmission belt and the wheel hub, reducing swing, better tensioning the transmission belt, better moving the lifting plate, cleaning the belt groove of the wheel hub, and accelerating heat dissipation. Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present utility model;

[0015] Figure 2 is Figure 1 the structural schematic diagram of the mounting plate in

[0016] Figure 3 is Figure 1 the structural schematic diagram of the tensioning assembly in

[0017] In the figure: 1, wheel hub; 2, transmission belt; 3, mounting plate; 31, sliding block; 4, tensioning assembly; 41, tensioning wheel; 42, lifting plate; 43, sliding groove; 44, rotating rod; 45, push plate; 46, pneumatic cylinder; 5, limiting assembly; 51, protruding rod; 52, limiting plate; 53, push rod; 54, cleaning block; 6, fan. Detailed Embodiments

[0018] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0019] Such as Figure 1In an embodiment, a shock-absorbing and noise-reducing pulley structure includes two hubs 1, a transmission belt 2, a mounting plate 3, a tensioning assembly 4, and a limiting assembly 5. The two hubs 1 are provided. Both ends of the transmission belt 2 are respectively engaged with the hubs 1 on both sides. The mounting plate 3 is placed on one side of the hub 1. The tensioning assembly 4 is installed on the mounting plate 3. One end of the tensioning assembly 4 contacts the lower side of the transmission belt 2. The limiting assembly 5 is installed on the mounting plate 3 and matches the lower side of the transmission belt 2.

[0020] As Figure 2 shown, the limiting assembly 5 includes protruding rods 51. Two protruding rods 51 are installed on the mounting plate 3. The two protruding rods 51 are respectively close to the hubs 1 on both sides. Two limiting plates 52 are installed on the protruding rods 51. The two limiting plates 52 are respectively placed on the left and right sides of the lower transmission belt 2.

[0021] As Figure 3 shown, the tensioning assembly 4 includes a tensioning wheel 41 and a lifting plate 42. A sliding groove 43 is installed on the lifting plate 42. A sliding block 31 is installed on the mounting plate 3. The lifting plate 42 is slidably connected to the mounting plate 3 through the cooperation of the sliding block 31 and the sliding groove 43. A rotating rod 44 is provided on the tensioning wheel 41. One end of the rotating rod 44 is connected to the tensioning wheel 41, and the other end of the rotating rod 44 is rotatably connected to the lifting plate 42.

[0022] A push plate 45 is installed at the upper end of the lifting plate 42. An air cylinder 46 is installed on the mounting plate 3. The pneumatic end of the air cylinder 46 is connected to the push plate 45.

[0023] A top rod 53 is installed on the protruding rod 51. A cleaning block 54 is installed on the side of the top rod 53 facing the hub 1. The cleaning block 54 matches the hub 1. A fan 6 is installed on the mounting plate 3. The fan 6 corresponds to the upper side of the transmission belt 2.

[0024] When the hub 1 and the transmission belt 2 cooperate for transmission, if the transmission belt 2 becomes loose and does not fit tightly with the hub 1, the air cylinder 46 pushes the push plate 45 and the lifting plate 42 to descend. The tensioning wheel 41 on the lifting plate 42 presses the lower side of the transmission belt 2, pressing down the lower side of the transmission belt 2 to ensure the tension of the transmission belt 2 and prevent vibrations caused by looseness.

[0025] During the transmission process, both ends of the lower side pass between the two limiting plates 52 on the protruding rods 51. The position of the transmission belt 2 is restricted by the limiting plates 52 to prevent the left and right swing of the transmission belt 2, which also greatly reduces vibrations. At the same time, the transmission groove of the hub 1 is cleaned by the cleaning block 54 to reduce vibrations caused by impurities.

[0026] At the same time, a fan 6 is installed on the mounting plate 3. The fan 6 corresponds to the joint of the upper side of the transmission belt 2 and the hub 1, which can dissipate heat from the transmission belt 2 in a timely manner, accelerate the dissipation of heat generated by friction, reduce thermal deformation by dissipating heat from the transmission belt 2, and thus reduce vibration.

Claims

1. A shock-absorbing and noise-reducing pulley structure, characterized in that, It includes a hub (1), a transmission belt (2), a mounting plate (3), a tensioning assembly (4) and a limiting assembly (5). There are two hubs (1). Both ends of the transmission belt (2) are engaged with the hubs (1) on both sides respectively. The mounting plate (3) is placed on one side of the hub (1). The tensioning assembly (4) is installed on the mounting plate (3). One end of the tensioning assembly (4) contacts the lower side of the transmission belt (2). The limiting assembly (5) is installed on the mounting plate (3), and the limiting assembly (5) matches the lower side of the transmission belt (2).

2. The structure of a shock-absorbing and noise-reducing pulley according to claim 1, wherein, The limiting assembly (5) includes a protruding rod (51). Two protruding rods (51) are installed on the mounting plate (3). The two protruding rods (51) are respectively close to the hubs (1) on both sides. Two limiting plates (52) are installed on the protruding rod (51). The two limiting plates (52) are respectively placed on the left and right sides of the lower transmission belt (2).

3. A shock-absorbing and noise-reducing pulley structure according to claim 1, characterized in that, The tensioning assembly (4) includes a tensioning wheel (41) and a lifting plate (42). A sliding groove (43) is installed on the lifting plate (42). A sliding block (31) is installed on the mounting plate (3). The lifting plate (42) is slidably connected to the mounting plate (3) through the cooperation of the sliding block (31) and the sliding groove (43). A rotating rod (44) is provided on the tensioning wheel (41). One end of the rotating rod (44) is connected to the tensioning wheel (41), and the other end of the rotating rod (44) is rotatably connected to the lifting plate (42).

4. The structure of a shock-absorbing and noise-reducing pulley according to claim 3, characterized in that, A push plate (45) is installed at the upper end of the lifting plate (42). An air cylinder (46) is installed on the mounting plate (3). The pneumatic end of the air cylinder (46) is connected to the push plate (45).

5. The structure of a shock-absorbing and noise-reducing pulley according to claim 2, characterized in that, A push rod (53) is installed on the protruding rod (51). A cleaning block (54) is installed on the side of the push rod (53) facing the hub (1). The cleaning block (54) matches the hub (1).

6. The structure of a shock-absorbing and noise-reducing pulley according to claim 1, wherein A fan (6) is installed on the mounting plate (3). The fan (6) corresponds to the upper side of the transmission belt (2).

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