Anti-falling belt wheel assembly of clutch

Abstract

The utility model relates to the field of clutch belt wheels, and discloses an anti-falling belt wheel assembly of a clutch, which comprises a belt wheel and a bearing column, the belt wheel is sleeved outside the bearing column, the left side of the belt wheel is provided with an installation mechanism, the circumferential surface of the belt wheel is fixedly connected with a fixing block, the surface of the fixing block is fixedly connected with a limiting ring, and the limiting ring is fixedly connected with the belt wheel. A convex block is fixedly connected to the surface of the belt wheel, a connecting mechanism is arranged outside the belt wheel, the mounting mechanism comprises a mounting disc, the mounting disc is fixedly mounted on the left side of the bearing column, and the mounting disc is fixedly connected with the belt wheel through a fastening bolt. According to the clutch, the belt is assembled on the surface of the belt wheel and located between the two sets of limiting rings, the situation that the belt deviates and then falls off from the surface of the belt wheel in the belt transmission process of the belt wheel and the belt is avoided through the action of the inclined faces and the limiting grooves, and the working stability and reliability of the clutch are improved.

Description

Technical Field

[0001] The utility model relates to the field of clutch pulleys, in particular to an anti-falling pulley assembly of a clutch. Background Art

[0002] The automobile air-conditioning electromagnetic clutch is a power transmission device between the automobile engine and the automobile air-conditioning compressor. The automobile air-conditioning compressor is driven by the automobile engine through the electromagnetic clutch. The automobile air-conditioning electromagnetic clutch is a typical mechatronics product.

[0003] The electromagnetic clutch of an automobile air conditioner is generally composed of three parts: a pulley assembly, a coil assembly, and a drive plate assembly. During transmission, the existing pulley assembly has a belt that is directly mounted on the pulley surface. When the pulley rotates rapidly, the belt will be displaced on the pulley surface, and then the belt will fall off. This requires staff to inspect and repair it, thereby increasing the maintenance frequency of the automobile clutch. Therefore, a clutch anti-fall-off pulley assembly is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an anti-fall-off pulley assembly for a clutch, aiming to improve the problem in the prior art that "when the pulley rotates rapidly, the belt will be displaced on the surface of the pulley, and the belt will fall off."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a clutch anti-fall pulley assembly, comprising a pulley and a bearing column, the pulley sleeve being arranged on the outside of the bearing column, a mounting mechanism being provided on the left side of the pulley, a fixed block being fixedly connected to the circumferential surface of the pulley, a limiting ring being fixedly connected to the surface of the fixed block, a protrusion being fixedly connected to the surface of the pulley, and a connecting mechanism being provided on the outside of the pulley.

[0006] As a further description of the above technical solution:

[0007] The mounting mechanism includes a mounting plate, and the mounting plate is fixedly mounted on the left side of the bearing column.

[0008] As a further description of the above technical solution:

[0009] The mounting plate is fixedly connected to the pulley via fastening bolts.

[0010] As a further description of the above technical solution:

[0011] The number of the fixing blocks is set to two groups, and the two groups of fixing blocks are symmetrically arranged on the left and right sides of the pulley, and a slope is provided on the side where the two groups of fixing blocks are close to each other.

[0012] As a further description of the above technical solution:

[0013] The protrusion is made of rubber material, the number of the protrusion is set to be multiple, and the multiple protrusions are arranged in a ring shape with equal intervals on the outer wall of the pulley, and the protrusion is arranged between two groups of fixing blocks.

[0014] As a further description of the above technical solution:

[0015] The number of the limiting rings is set to two groups, and limiting grooves are set on the sides where the two groups of limiting rings are close to each other.

[0016] As a further description of the above technical solution:

[0017] The pulley, the fixing block and the limiting ring are an integrated structure.

[0018] As a further description of the above technical solution:

[0019] The connecting mechanism includes a spline, which is fixedly mounted on the outer wall of the bearing column, and a keyway is provided on the inner wall of the pulley.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by assembling the belt on the surface of the pulley and placing the belt between two sets of limiting rings, the inclined surface and the limiting groove are used to prevent the belt from deviating during the transmission process between the pulley and the belt, and then from falling off the pulley surface, thereby improving the stability and reliability of the clutch operation.

[0022] 2. In the present invention, by arranging a plurality of protrusions on the surface of the pulley, when the belt is assembled on the surface of the pulley, the friction between the belt and the pulley is increased, thereby avoiding the slipping phenomenon during the transmission of the pulley and the belt, and improving the stability of the transmission of the belt and the pulley. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a schematic cross-sectional view of the overall three-dimensional structure of the present invention;

[0025] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the pulley, fixed block and protrusion in the utility model.

[0026] Legend:

[0027] 1. Pulley; 2. Bearing column; 3. Mounting plate; 4. Fastening bolt; 5. Fixing block; 6. Inclined surface; 7. Limiting ring; 8. Limiting groove; 9. Protrusion; 10. Spline; 11. Keyway. DETAILED DESCRIPTION

[0028] 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.

[0029] Reference Figure 1 、 Figure 2 The utility model provides an embodiment: an anti-falling pulley assembly of a clutch, comprising a pulley 1 and a bearing column 2, the central axis of the pulley 1 and the central axis of the bearing column 2 are on the same straight line, the pulley 1 is sleeved on the outside of the bearing column 2, a mounting mechanism is provided on the left side of the pulley 1, and a fixing block 5 with a triangular cross-section is fixedly connected to the circumferential surface of the pulley 1.

[0030] Reference Figure 2 、 Figure 3 The number of fixed blocks 5 is set to two groups, and the two groups of fixed blocks 5 are symmetrically arranged on the left and right sides of the pulley 1. The side where the two groups of fixed blocks 5 are close to each other is provided with an inclined surface 6 to prevent the belt from falling off the surface of the pulley 1 during transmission. The surface of the fixed block 5 is fixedly connected to the limiting ring 7. The pulley 1, the fixed block 5 and the limiting ring 7 are an integrated structure. The number of limiting rings 7 is set to two groups, and the side where the two groups of limiting rings 7 are close to each other is provided with a limiting groove 8. The limiting groove 8 has the effect of limiting and preventing the belt assembled on the surface of the pulley 1 from falling off, thereby improving the stability and reliability of the clutch.

[0031] Reference Figure 2 、 Figure 3 The surface of the pulley 1 is fixedly connected with a protrusion 9 with a triangular cross-section. The protrusion 9 is made of rubber. When the belt is assembled on the surface of the pulley 1, the friction between the belt and the pulley 1 is improved through the setting of the protrusion 9. The number of protrusions 9 is set to multiple, and multiple protrusions 9 are arranged in a ring shape with equal intervals on the outer wall of the pulley 1. The protrusion 9 is arranged between the two groups of fixed blocks 5 to prevent the belt from slipping and improve the stability of the belt and pulley 1 during transmission. A connecting mechanism is provided on the outside of the pulley 1.

[0032] Reference Figure 1 、 Figure 2 The mounting mechanism includes a mounting plate 3, which is fixedly mounted on the left side of the bearing column 2. The mounting plate 3 and the bearing column 2 are integrally formed to improve the connection strength. The mounting plate 3 is fixedly connected to the pulley 1 by a fastening bolt 4, which is convenient for maintenance and disassembly of the pulley 1, and is easy to install and simple to maintain.

[0033] Reference Figure 2 、 Figure 3 The connecting mechanism includes a spline 10, and there are multiple splines 10. The spline 10 is fixedly mounted on the outer wall of the bearing column 2. A keyway 11 that cooperates with the spline 10 is opened on the inner wall of the pulley 1. By installing the spline 10 inside the keyway 11, the stability of the pulley 1 and the bearing column 2 when they rotate together is improved.

[0034] Working principle: When in use, the belt is assembled on the surface of the pulley 1 and placed between two sets of limiting rings 7. The friction between the belt and the pulley 1 is increased by multiple protrusions 9 to avoid slipping during the transmission of the pulley 1 and the belt. The inclined surface 6 and the limiting groove 8 can prevent the belt from deviating during the transmission of the pulley 1 and the belt, and then from falling off the surface of the pulley 1, thereby improving the stability and reliability of the clutch operation.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A clutch anti-drop pulley assembly, comprising a pulley (1) and a bearing column (2), characterized in that: The pulley (1) is sleeved on the outside of the bearing column (2); a mounting mechanism is provided on the left side of the pulley (1); a fixing block (5) is fixedly connected to the circumferential surface of the pulley (1); a limiting ring (7) is fixedly connected to the surface of the fixing block (5); a convex block (9) is fixedly connected to the surface of the pulley (1); and a connecting mechanism is provided on the outside of the pulley (1).

2. The clutch anti-drop pulley assembly according to claim 1, characterized in that: The mounting mechanism comprises a mounting plate (3), and the mounting plate (3) is fixedly mounted on the left side of the bearing column (2).

3. The anti-drop pulley assembly of a clutch according to claim 2, characterized in that: The mounting plate (3) is fixedly connected to the pulley (1) via fastening bolts (4).

4. The clutch anti-drop pulley assembly according to claim 1, characterized in that: The number of the fixing blocks (5) is set to two groups, and the two groups of fixing blocks (5) are symmetrically arranged on the left and right sides of the pulley (1), and a slope (6) is provided on the side where the two groups of fixing blocks (5) are close to each other.

5. The clutch anti-falling pulley assembly according to claim 1, characterized in that: The protrusion (9) is made of rubber, the number of the protrusions (9) is set to be multiple, the multiple protrusions (9) are arranged in a ring shape at equal intervals on the outer wall of the pulley (1), and the protrusion (9) is arranged between two groups of fixed blocks (5).

6. The clutch anti-drop pulley assembly according to claim 1, characterized in that: The number of the limiting rings (7) is set to two groups, and limiting grooves (8) are provided on the sides where the two groups of limiting rings (7) are close to each other.

7. The clutch anti-drop pulley assembly according to claim 1, characterized in that: The pulley (1), the fixing block (5) and the limiting ring (7) are an integrated structure.

8. The clutch anti-drop pulley assembly according to claim 1, characterized in that: The connecting mechanism comprises a spline (10), the spline (10) is fixedly mounted on the outer wall of the bearing column (2), and a keyway (11) is provided on the inner wall of the pulley (1).

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