Belt pulley for preventing belt from loosening for automobile air conditioner clutch

Abstract

The belt pulley for the automobile air conditioner clutch capable of preventing the belt from loosening comprises a hollow belt pulley body and a hollow ring cover, one end of the hollow belt pulley body is fixedly provided with a coaxial anti-disengaging ring, and the hollow belt pulley body and the anti-disengaging ring are rotationally installed in the hollow ring cover. By means of the overall arrangement, in the running process, the looseness of the belt can be limited, the belt is prevented from loosening and falling off, so that the belt is safer and more reliable in the running process, normal disassembly and assembly of the belt cannot be affected, meanwhile, after abrasion occurs in the later period, all parts can be replaced independently, and the labor intensity of workers is reduced. The operation is more convenient and flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pulley, especially involves a prevent loose belt from automobile air conditioner clutch pulley. BACKGROUND

[0002] The automobile air conditioner clutch pulley, usually simply referred to as air conditioner pulley, is an important component installed on the crankshaft of automobile engine or air conditioner compressor. It transmits the power of engine to air conditioner compressor through the close cooperation with engine belt (or transmission belt), thereby driving the compressor to run and realizing the refrigeration or heating function of automobile air conditioner system.

[0003] However, the existing automobile air conditioner clutch pulley cannot control the looseness of the belt, and the belt is prone to falling off when loose, thereby existing certain safety hazards. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model provides a prevent loose belt from automobile air conditioner clutch pulley, including hollow pulley and hollow ring cover, one end of the hollow pulley is fixedly installed with coaxial anti-drop ring, and the hollow pulley and the anti-drop ring are rotatably installed in the hollow ring cover;The diameter of the anti-drop ring is greater than the diameter of the hollow pulley, and the diameter of the anti-drop ring is less than the inner diameter of the hollow ring cover;

[0005] Preferably, one end of the hollow ring cover is open, and the other end of the hollow ring cover is provided with an axial hole, and a notch is formed on one side of the hollow ring cover, and an upper anti-drop block and a lower anti-drop block are fixedly installed on both ends of the outside of the notch;The other end of the hollow pulley is rotatably extended from the axial hole;The outer surface of the anti-drop ring is flush with the open end of the hollow ring cover, and the thickness of the anti-drop ring is the same as the thickness of the upper anti-drop block and the lower anti-drop block, and the anti-drop ring does not contact the upper anti-drop block and the lower anti-drop block;

[0006] Preferably, the upper hollow limiting roller and the lower hollow limiting roller are rotatably installed on the hollow ring cover, and the upper hollow limiting roller is rotatably arranged between the upper anti-drop block and the notch, and the lower hollow limiting roller is rotatably arranged between the lower anti-drop block and the notch.

[0007] Preferably, the inside of the hollow pulley is fixedly installed with spiral fins, and a plurality of heat dissipation holes are uniformly and penetratively formed on the surface of the hollow pulley.

[0008] Preferably, a plurality of ventilation holes are uniformly and penetratively formed on the surface of the spiral fin.

[0009] Preferably, a through hole is formed on the upper anti-drop block and the lower anti-drop block.

[0010] Preferably, the surface of the upper hollow limiting roller and the lower hollow limiting roller is provided with a plurality of heat dissipation holes, and the heat dissipation holes on the upper hollow limiting roller are coaxially communicated with the through holes on the upper anti-falling block, and the heat dissipation holes on the lower hollow limiting roller are coaxially communicated with the through holes on the lower anti-falling block.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The whole setting can limit the looseness of the belt, prevent the belt from loosening and falling off, and make the belt more safe and reliable during operation.

[0013] Meanwhile, the normal disassembly and assembly of the belt are not affected, and each component can be replaced individually when worn out, which is more convenient and flexible. ACCURACY OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model.

[0015] Figure 2 It is an explosion structure schematic view of the utility model.

[0016] Figure 3 It is an upper hollow limiting roller structure schematic view of the utility model.

[0017] In the drawing:

[0018] Hollow pulley 1, anti-falling ring 2, heat dissipation hole 3, spiral fin 4, ventilation hole 5, hollow ring cover 6, shaft hole 7, notch 8, upper anti-falling block 9, lower anti-falling block 10, upper hollow limiting roller 11, lower hollow limiting roller 12, through hole 13, heat dissipation hole 14. DETAILED DESCRIPTION

[0019] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be described clearly and completely below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0020] The utility model will be further described below in combination with the drawings:

[0021] EMBODIMENT:

[0022] As shown in the accompanying Figure 1 to the accompanying Figure 3 As shown:

[0023] The utility model provides a prevent loose belt car air conditioner clutch with belt pulley, including hollow pulley 1 and hollow ring cover 6, one end fixed mounting of hollow pulley 1 is coaxial with anti -drop ring 2, through the setting of anti -drop ring 2, can guarantee the stability of belt in the process of rotating on hollow pulley 1, and hollow pulley 1 and anti -drop ring 2 are rotatably installed in hollow ring cover 6, through the setting of hollow ring cover 6, can protect hollow pulley 1, and the looseness of belt is limited simultaneously, the diameter of anti -drop ring 2 is greater than the diameter of hollow pulley 1, and the diameter of anti -drop ring 2 is less than the inside diameter of hollow ring cover 6,

[0024] One end of hollow ring cover 6 is open, and the other end of hollow ring cover 6 is provided with shaft hole 7, through the setting of shaft hole 7, the stability between hollow pulley 1 and hollow ring cover 6 and the smoothness in the process of rotating can be guaranteed, and the side of hollow ring cover 6 is provided with notch 8, through the setting of notch 8, the belt is convenient to pass out of hollow ring cover 6, the both ends of the outside of the notch 8 are fixedly installed with upper anti -drop block 9 and lower anti -drop block 10 respectively, through the setting of upper anti -drop block 9 and lower anti -drop block 10, the belt can be limited, so that the belt always runs between upper anti -drop block 9 and lower anti -drop block 10, to prevent the belt from falling off, the other end of hollow pulley 1 rotatably extends from shaft hole 7, so that hollow pulley 1 is fixedly connected with the output end of car air conditioner clutch, the outer surface of anti -drop ring 2 is flush with the open one end surface of hollow ring cover 6, and the thickness of anti -drop ring 2 is same with the thickness of upper anti -drop block 9 and lower anti -drop block 10, the anti -drop ring 2 does not contact with upper anti -drop block 9 and lower anti -drop block 10, so as to disassemble and assemble the belt,

[0025] Upper hollow limiting roller 11 and lower hollow limiting roller 12 are rotatably installed on hollow ring cover 6, so that the belt contacts with upper hollow limiting roller 11 and lower hollow limiting roller 12 after extending out of notch 8, and rotates with the belt, to prevent the belt from rubbing with hollow ring cover 6, guarantee the smoothness in the process of belt running, and limit the looseness of belt, and upper hollow limiting roller 11 rotates between upper anti -drop block 9 and notch 8, and lower hollow limiting roller 12 rotates between lower anti -drop block 10 and notch 8.

[0026] Spiral fin 4 is fixedly installed in the inside of hollow pulley 1, through the setting of spiral fin 4, to absorb the heat on hollow pulley 1, heat dissipation of hollow pulley 1, prevent hollow pulley 1 from overheating, and a plurality of heat dissipation holes 3 are uniformly and penetratively provided on the surface of hollow pulley 1, through the setting of heat dissipation hole 3, to make air circulation in the process of hollow pulley 1 rotating, heat dissipation.

[0027] A plurality of ventilation holes 5 are uniformly provided on the surface of spiral fin 4, through the setting of ventilation hole 5, to make air circulation in the process of hollow pulley 1 rotating, heat dissipation of spiral fin 4.

[0028] The upper anti-falling block 9 and the lower anti-falling block 10 are each provided with a through hole 13; the surfaces of the upper hollow limiting roller 11 and the lower hollow limiting roller 12 are each provided with a plurality of heat dissipation holes 14, and the heat dissipation holes 14 on the upper hollow limiting roller 11 are coaxially communicated with the through hole 13 on the upper anti-falling block 9, and the heat dissipation holes 14 on the lower hollow limiting roller 12 are coaxially communicated with the through hole 13 on the lower anti-falling block 10; through the arrangement of the through hole 13 and the heat dissipation hole 14, when the upper hollow limiting roller 11 and the lower hollow limiting roller 12 rotate with the belt, air circulation is facilitated, so that the upper hollow limiting roller 11 and the lower hollow limiting roller 12 are cooled.

[0029] In the embodiment, one end of the hollow pulley 1 extending out of the hollow ring cover 6 is fixedly connected with the output end of the automobile air conditioner clutch, and the hollow ring cover 6 is fixedly connected with the automobile body or the shell of the automobile air conditioner clutch.

[0030] Then, the belt is sleeved on the hollow pulley 1 through the gap between the anti-falling ring 2 and the open end of the hollow ring cover 6, and the belt is passed out of the notch 8, so that the belt is located between the upper anti-falling block 9 and the lower anti-falling block 10 and the upper hollow limiting roller 11 and the lower hollow limiting roller 12.

[0031] In this way, when the belt rotates, the upper hollow limiting roller 11 can limit the looseness of the upper part of the belt, and the lower hollow limiting roller 12 can limit the looseness of the lower part of the belt.

[0032] Meanwhile, the upper anti-falling block 9 and the lower anti-falling block 10 can prevent the belt from falling off the hollow pulley 1.

[0033] If a similar technical scheme is designed by using the technical scheme or inspired by the technical scheme of the utility model, and the above technical effects are achieved, it is also within the protection scope of the utility model.

Claims

1. A belt slack preventing pulley for an automobile air conditioner clutch, characterized by: Including hollow pulley (1) and hollow ring cover (6), one end of hollow pulley (1) is fixedly installed with coaxial anti-off ring (2), and hollow pulley (1) and anti-off ring (2) are rotatably installed in hollow ring cover (6); One end of the hollow ring cover (6) is open, and the other end of the hollow ring cover (6) is provided with an axial hole (7), and one side of the hollow ring cover (6) is provided with a notch (8), both ends of the outer side of the notch (8) are fixedly installed with upper anti-off block (9) and lower anti-off block (10); the other end of the hollow pulley (1) is rotatably extended from the axial hole (7); the outer surface of the anti-off ring (2) is flush with the open end of the hollow ring cover (6), and the anti-off ring (2) is not in contact with the upper anti-off block (9) and the lower anti-off block (10); The hollow ring cover (6) is rotatably installed with upper hollow limiting roller (11) and lower hollow limiting roller (12), and the upper hollow limiting roller (11) is rotatably arranged between the upper anti-off block (9) and the notch (8), and the lower hollow limiting roller (12) is rotatably arranged between the lower anti-off block (10) and the notch (8).

2. The belt slack preventing pulley for an automobile air conditioner clutch as recited in claim 1, characterized by: The inside of the hollow pulley (1) is fixedly installed with spiral fin (4), and the surface of the hollow pulley (1) is uniformly provided with a plurality of heat dissipation holes (3).

3. The belt slack preventing pulley for an automobile air conditioner clutch as recited in claim 2, characterized by: The surface of the spiral fin (4) is uniformly provided with a plurality of ventilation holes (5).

4. The belt slack preventing pulley for an automobile air conditioner clutch as recited in claim 1, characterized by: The upper anti-off block (9) and the lower anti-off block (10) are each provided with a through hole (13).

5. The belt slack preventing pulley for an automobile air conditioner clutch as recited in claim 4, characterized by: The surface of the upper hollow limiting roller (11) and the lower hollow limiting roller (12) is each provided with a plurality of heat dissipation holes (14), and the heat dissipation holes (14) on the upper hollow limiting roller (11) are coaxially communicated with the through holes (13) on the upper anti-off block (9), and the heat dissipation holes (14) on the lower hollow limiting roller (12) are coaxially communicated with the through holes (13) on the lower anti-off block (10).

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