Belt pulley of automobile air conditioner clutch

Abstract

The utility model discloses a belt pulley of an automobile air conditioner clutch. The belt pulley comprises a belt pulley body and a mounting hole, an inner wheel is arranged on the inner side of the belt wheel body, and a belt groove is formed between the belt wheel body and the inner wheel. The mounting hole is formed in the belt wheel body, a sleeve is arranged in the inner wheel, and a sealing cover is arranged on the inner bottom wall of the sleeve; after the belt completely enters the surface of the belt groove, the spring B pushes the lifting plate and the limiting plate to the initial position through the elasticity of the spring B, the limiting plate moves to be higher than the belt wheel body and the inner wheel, and therefore the belt can be prevented from being separated from the surface of the belt groove during working through the arrangement of the limiting plate; a limiting and anti-falling condition is formed; the belt wax has viscidity, large resistance exists between the belt wax and the inner wall of the sleeve, in the rotating process of the belt wheel body, under the action of centrifugal force, the belt wax automatically slides out outwards and adheres to the bottom of a belt, and the friction force in a belt groove is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning clutch pulleys, and particularly relates to a pulley of an automobile air-conditioning clutch. Background Art

[0002] An automobile air-conditioning clutch is an electromagnetic clutch. Its static torque is generated when the coil in the coil groove of the pulley is energized to generate a magnetic field, which makes the suction cup contact the contact surface of the pulley. The higher the generated frictional force, the better the effect.

[0003] In the prior art, when installing a belt on the pulley of an automobile air-conditioning clutch, since there are raised ring plates on both sides, the belt needs to be very loose to be put on. And because of the looseness, the belt put on is likely to fall off before being tightened, resulting in the problem of repeatedly putting on the belt, and thus it is easy to frequently cause the situation of the belt falling off. In view of this, we introduce a pulley of an automobile air-conditioning clutch. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pulley of an automobile air-conditioning clutch to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pulley of an automobile air-conditioning clutch, comprising: a pulley body and a mounting hole;

[0006] An inner wheel is arranged inside the pulley body. The inner wheel and the pulley body are integrally formed. A belt groove is formed between the pulley body and the inner wheel. The setting of the belt groove facilitates the installation of the belt;

[0007] The mounting hole is arranged inside the pulley body. The mounting hole and the pulley body are integrally formed. A sleeve is arranged inside the inner wheel. A sealing cover is arranged on the inner bottom wall of the sleeve. A spring A is arranged on the top of the sealing cover. A limiting mechanism is arranged inside the pulley body and the inner wheel. The spring B of the limiting mechanism drives the lifting plate and the limiting plate to move, so that the limiting plate limits the belt.

[0008] Preferably, the limiting mechanism comprises a positioning cavity formed inside the pulley body. The positioning cavity and the pulley body are integrally formed. The spring B is connected inside the positioning cavity. The lifting plate is connected inside the spring B and is located at the top of the spring B. After the lifting plate moves down, the lifting plate will squeeze the spring B, and the spring B can also use its own elastic force to move the spring B to the initial position. The limiting plate is connected to the top of the lifting plate. The limiting plate and the lifting plate are fixedly arranged.

[0009] Preferably, the top of the spring A is connected to a push plate, and the top of the push plate is connected to a belt wax, and the belt wax is in contact with the push plate.

[0010] Preferably, one end of the belt wax extends to the surface of the belt groove. During the rotation of the pulley body, under the action of centrifugal force, the belt wax automatically slides outward and adheres to the bottom of the belt, increasing the friction inside the belt groove.

[0011] Preferably, the sealing cover and the sleeve are threadedly connected, and the sealing cover can be rotated inside the sleeve to seal the sleeve.

[0012] Compared with the prior art, the beneficial effect of the present invention is that after the belt completely enters the surface of the belt groove, the spring B will use its own elastic force to push the lifting plate and the limit plate to the initial position, so that the limit plate moves higher than the pulley body and the inner wheel, and then the setting of the limit plate can prevent the belt from leaving the surface of the belt groove during operation, forming a limit and anti-falling condition;

[0013] When the belt wax is inserted into the interior of the sleeve, the belt wax has viscosity and there is a large resistance between it and the inner wall of the sleeve. During the rotation of the pulley body, under the action of centrifugal force, the belt wax automatically slides outward and sticks to the bottom of the belt, increasing the friction inside the belt groove, making it easier to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the push plate, inner wheel and belt wax connection of the utility model;

[0016] Figure 3 This is a structural diagram of the pulley body and the limiting plate when connected to each other in the utility model.

[0017] In the figure: 1. Pulley body; 2. Inner wheel; 3. Mounting hole; 4. Belt groove; 5. Sleeve; 6. Belt wax; 7. Sealing cover; 8. Spring A; 9. Push plate; 10. Positioning cavity; 11. Spring B; 12. Lifting plate; 13. Limiting plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Please refer to Figures 1-3 ,the present utility model provides a technical solution: a pulley of an automotive air-conditioning clutch, comprising: a pulley body 1, an inner wheel 2 is arranged inside the pulley body 1, and the inner wheel 2 and the pulley body 1 are integrally formed. A belt groove 4 is formed between the pulley body 1 and the inner wheel 2;

[0020] An installation hole 3 is arranged inside the pulley body 1. A sleeve 5 is arranged inside the inner wheel 2. A sealing cover 7 is arranged on the inner bottom wall of the sleeve 5. A spring A8 is arranged on the top of the sealing cover 7. A limiting mechanism is arranged inside the pulley body 1 and the inner wheel 2. The spring B11 of the limiting mechanism drives the lifting plate 12 and the limiting plate 13 to move, so that the limiting plate 13 limits the belt.

[0021] The limiting mechanism includes a positioning cavity 10 formed inside the pulley body 1, and the positioning cavity 10 and the pulley body 1 are integrally formed. The spring B11 is connected inside the positioning cavity 10. The lifting plate 12 is connected inside the spring B11 and is located at the top of the spring B11. After the lifting plate 12 moves downward, the lifting plate 12 will squeeze the spring B11, and the spring B11 can also use its own elastic force to move the spring B11 to the initial position. The limiting plate 13 is connected to the top of the lifting plate 12, and the limiting plate 13 and the lifting plate 12 are fixedly arranged.

[0022] The top of the spring A8 is connected with a push plate 9, and the top of the push plate 9 is connected with a belt wax 6, and the belt wax 6 is in contact with the push plate 9.

[0023] One end of the belt wax 6 extends to the surface of the belt groove 4. During the rotation of the pulley body 1, under the action of centrifugal force, the belt wax 6 automatically slides outwards and adheres to the bottom of the belt, increasing the friction inside the belt groove 4.

[0024] The sealing cover 7 is threadedly connected with the sleeve 5, and the sealing cover 7 can rotate inside the sleeve 5 to seal the sleeve 5.

[0025] Specifically, when in use, the belt is inserted into the surface of the belt groove 4 through the top of the limit plate 13 and the top of the pulley body 1, and the belt will squeeze the limit plate 13. After the limit plate 13 moves down, the limit plate 13 will drive the lifting plate 12 to move down, and the lifting plate 12 will squeeze the spring B11 inside the positioning cavity 10, and the limit plate 13 is more convenient to enter the interior of the positioning cavity 10. At the same time, after the belt completely enters the surface of the belt groove 4, the spring B11 will use its own elastic force to push the lifting plate 12 and the limit plate 13 to the initial position, so that the limit plate 13 moves higher than the pulley body 1 and the inner wheel 2, and then the setting of the limit plate 13 can prevent the belt from separating from the surface of the belt groove 4 during work, forming a limit and anti-falling condition;

[0026] The belt wax 6 is inserted into the interior of the sleeve 5. The belt wax 6 is sticky and has a large resistance against the inner wall of the sleeve 5. During the rotation of the pulley body 1, under the action of centrifugal force, the belt wax 6 automatically slides outward and sticks to the bottom of the belt, increasing the friction inside the belt groove 4, making it easier to use.

[0027] Although 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 pulley of an automotive air-conditioning clutch, characterized in that, Including: A pulley body (1), an inner wheel (2) is arranged inside the pulley body (1), and a belt groove (4) is formed between the pulley body (1) and the inner wheel (2); A mounting hole (3), the mounting hole (3) is arranged inside the pulley body (1), a sleeve (5) is arranged inside the inner wheel (2), a sealing cover (7) is arranged on the inner bottom wall of the sleeve (5), a spring A (8) is arranged on the top of the sealing cover (7), and a limiting mechanism is arranged inside the pulley body (1) and the inner wheel (2). The spring B (11) of the limiting mechanism drives the lifting plate (12) and the limiting plate (13) to move, so that the limiting plate (13) limits the belt.

2. The pulley of an automotive air-conditioning clutch according to claim 1, characterized in that, The limiting mechanism includes a positioning cavity (10) formed inside the pulley body (1), the spring B (11) is connected inside the positioning cavity (10), the lifting plate (12) is connected inside the spring B (11) and is located at the top of the spring B (11), and the limiting plate (13) is connected to the top of the lifting plate (12).

3. The pulley of an automotive air conditioning clutch according to claim 1, characterized in that, The top of the spring A (8) is connected with a push plate (9), and the top of the push plate (9) is connected with a belt wax (6).

4. The pulley of an automotive air-conditioning clutch according to claim 3, wherein, One end of the belt wax (6) extends to the surface of the belt groove (4).

5. The pulley of an automotive air-conditioning clutch according to claim 1, wherein The sealing cover (7) is in threaded connection with the sleeve (5).

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