Combined type fan clutch

Abstract

The utility model discloses a combined type fan clutch, which belongs to the technical field of fan clutches, and comprises a fan clutch body, oil injection holes are arranged on the outer side of the fan clutch body, the oil injection holes are distributed in a columnar shape with wide inside and narrow outside, and a fixing frame with holes is fixed on the inner side of an inner cavity of each oil injection hole. The threaded column is supported through the fixing frame, then the piston block can be moved by rotating the threaded column, the piston column and the oil injection hole can be conveniently used for opening and closing through the characteristic that the oil injection hole is wide inside and narrow outside, the mechanism is simple, faults are not prone to occurring, and the oil injection hole can be conveniently opened and closed. Meanwhile, the added silicone oil has the lubricating and protecting effects, the threaded column is located in the oil injection hole and is not prone to being interfered by external parts, the fan clutch body does not need to be separated from the fan ring, oil injection operation is directly carried out through the fan ring, and the oil injection procedure is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of fan clutches, in particular to a composite fan clutch. Background Art

[0002] The fan clutch can make the fan driven by the crankshaft or not driven according to the temperature of the radiator coolant. It is divided into mechanical, electromagnetic and silicone oil types. The fan clutch can make the fan driven by the crankshaft or not driven according to the temperature of the radiator coolant. It is divided into mechanical, electromagnetic and silicone oil types.

[0003] In the prior art, the Chinese utility model with publication number: CN216554516U discloses a composite fan clutch, including a fan clutch body, an oil filling groove is provided on the fan clutch body, an oil filling mechanism is provided on the oil filling groove, the oil filling mechanism includes a rotating shaft, the rotating shaft rotates through the fan clutch body and is fixedly connected to a first bevel gear, and one end of the rotating shaft is fixedly connected to a rotating handle. In this utility model, silicone oil is injected from the upper end of the oil filling cylinder, and the silicone oil flows into the fan clutch from the oil filling hole. After the oil is added, the rotating handle is reversed to retract the oil filling cylinder, thereby avoiding the silicone oil from flowing back from the oil filling cylinder and simplifying the process of injecting silicone oil into the fan clutch body. After tightening the nut and rotating the six rotating columns, the clamping rod clamps the mounting block, so that the fan and the fan clutch body are tightly connected together, ensuring the stability during the later operation.

[0004] In the above technical solution, an overly complicated structure is used to drive the oil filling cylinder from the outside to telescope and move in the oil filling groove, adjust the position of the oil filling hole, and then rotate the bolt plug to connect the oil filling cylinder with the inner cavity of the fan clutch body to facilitate oil filling. First, the structure of the oil filling mechanism is complicated, which increases the probability of failure. At the same time, the structure requires the fan clutch body to be removed from the fan ring before oil filling can be carried out, which invisibly increases the workload of oil filling. At the same time, the clamping rod on the outside of the rotating column rotates, and a tool needs to be used to extend to the inside of the fan ring for operation, which also increases the difficulty of disassembly and assembly, resulting in the composite fan clutch being not as convenient as claimed when injecting silicone oil. Utility Model Content

[0005] The purpose of the utility model is to provide a compound fan clutch, which can move the piston block in the oil filling hole by rotating the threaded column. At the same time, the outer structure of the oil filling hole and the piston block is limited to ensure the change of the position of the piston block and realize the opening and closing of the oil filling hole. At the same time, a through hole is opened on the outside of the fan ring, so that silicone oil can be added to the inside of the box fan clutch body without separating the fan ring and the fan clutch body. At the same time, the operation of adding silicone oil is very convenient, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a composite fan clutch, including a fan clutch body, an oil injection hole is opened on the outer side of the fan clutch body, the oil injection hole is distributed in a columnar shape with a wider inner part and a narrower outer part, a fixing frame with holes is fixed inside the inner cavity of the oil injection hole, a threaded column is rotatably connected to the center of the fixing frame through a bearing, a piston block is threadedly connected to the outer side of the threaded column, the piston block includes a limiting base and a piston column, and the piston column is attached to the outer side of the inner cavity of the oil injection hole;

[0007] It further includes a fan ring, a plurality of fan blades are fixed on the outer side of the fan ring, the fan clutch body is installed inside the fan ring, and a through hole aligned with the oil injection hole is opened on the outer side of the fan ring.

[0008] Preferably, a limiting groove is opened in the inner cavity of the oil injection hole, a limiting block is slidably connected to the inner cavity of the limiting groove, the limiting block penetrates through the limiting groove and is fixed on the outer side of the limiting base. The limiting groove is opened in the inner cavity of the oil injection hole, a limiting block is slidably connected to the inner cavity of the limiting groove, and the limiting block penetrates through the limiting groove and is fixed on the outer side of the limiting base.

[0009] Preferably, three installation holes are opened on the surface of the fan ring, three pins are fixed on the outer side of the fan clutch body, an internal thread cylinder is fixed on the outer side of the pins, one end of the internal thread cylinder far from the fan clutch body penetrates through the installation hole and extends outwards, an installation screw is arranged on the outer side of the fan ring, and the installation screw penetrates into the installation hole and is threadedly connected with the internal thread cylinder.

[0010] Preferably, three limiting seats are fixed on the inner side of the fan ring, and the pins are slidably arranged in the inner cavities of the limiting seats.

[0011] Preferably, a support block is arranged on the outer side of the fan clutch body, and one side of the support block far from the fan clutch body is attached to the inner wall of the fan ring.

[0012] Preferably, counterbores are opened around the inner side of the installation hole, a support spring is fixed in the inner cavity of the counterbore, a limiting steel ball is fixed at the movable end of the support spring, a groove is annularly opened on the outer side of the internal thread cylinder, and the limiting steel ball extends into the inner cavity of the groove.

[0013] Preferably, a notch is opened at the end of the threaded column, and a sealing ring is embedded on the outer side of the piston column.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model supports the threaded column by using a fixing frame, and then the piston block can be moved by rotating the threaded column. The oil filling hole is wide inside and narrow outside, so it is convenient to open and close the piston column and the oil filling hole. The structure is simple and not prone to failure. At the same time, the added silicone oil also plays a lubricating and protective role. The threaded column is located in the oil filling hole and is not easily disturbed by external parts. At the same time, there is no need to separate the fan clutch body from the fan ring, and the oil filling operation can be performed directly across the fan ring, simplifying the oil filling process.

[0016] 2. The utility model supports the limiting steel ball through the support spring, so that the limiting steel ball is directly clamped in the groove outside the internal threaded tube, and the fan clutch body and the fan ring are preliminarily positioned, which is convenient for fixing the fan clutch body and the fan ring with the installation screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a disassembled three-dimensional structural schematic diagram of the fan clutch body and the fan ring of the utility model;

[0019] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the fan clutch body of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the piston block of the utility model;

[0021] Figure 5 It is a rear cross-sectional three-dimensional structural schematic diagram of the fan ring of the utility model.

[0022] Numbers in the figure: 1. Fan clutch body; 2. Oil filling hole; 3. Fixing bracket; 4. Threaded column; 5. Piston block; 51. Limit base; 52. Piston column; 6. Fan ring; 7. Fan blade; 8. Through hole; 9. Limit groove; 10. Limit block; 11. Mounting hole; 12. Pin; 13. Internal threaded cylinder; 14. Mounting screw; 15. Limit seat; 16. Support block; 17. Support spring; 18. Limit steel ball; 19. Groove; 20. Incision; 21. Sealing ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model providesFigures 1 to 5 The composite fan clutch shown in the figure comprises a fan clutch body 1, an oil filling hole 2 is opened on the outer side of the fan clutch body 1, the oil filling hole 2 is distributed in a columnar shape with a wide inside and a narrow outside, a fixing frame 3 with a hole is fixed on the inner side of the inner cavity of the oil filling hole 2, a threaded column 4 is rotatably connected to the center of the fixing frame 3 through a bearing, a piston block 5 is threadedly connected to the outer side of the threaded column 4, the piston block 5 comprises a limiting base 51 and a piston column 52, and the piston column 52 is attached to the outer side of the inner cavity of the oil filling hole 2;

[0025] It also includes a fan ring 6, a plurality of fan blades 7 are fixed to the outside of the fan ring 6, a fan clutch body 1 is mounted on the inside of the fan ring 6, and a through hole 8 aligned with the oil injection hole 2 is opened on the outside of the fan ring 6;

[0026] The threaded column 4 is supported by the fixing frame 3, and then the piston block 5 can be moved by rotating the threaded column 4. The oil filling hole 2 is wide inside and narrow outside, so it is convenient to open and close the piston column 52 and the oil filling hole 2. The structure is simple and not prone to failure. At the same time, the added silicone oil also has the effect of lubrication and protection. The threaded column 4 is located in the oil filling hole 2 and is not easily interfered by external parts. At the same time, there is no need to separate the fan clutch body 1 from the fan ring 6. The oil filling operation can be performed directly through the fan ring 6, which simplifies the oil filling process.

[0027] A limiting groove 9 is provided in the inner cavity of the oil filling hole 2, and the inner cavity of the limiting groove 9 is slidably connected to a limiting block 10, which penetrates the limiting groove 9 and is fixed on the outer side of the limiting base 51. The inner cavity of the oil filling hole 2 is provided with a limiting groove 9, and the inner cavity of the limiting groove 9 is slidably connected to a limiting block 10, which penetrates the limiting groove 9 and is fixed on the outer side of the limiting base 51. The limiting block 10 slides in the limiting groove 9, which facilitates the limiting base 51 to be limited, preventing the piston block 5 from rotating along with the threaded column 4 in the oil filling hole 2, resulting in the piston block 5 being unable to generate displacement.

[0028] Three groups of mounting holes 11 are provided on the surface of the fan ring 6, three groups of pins 12 are fixed on the outside of the fan clutch body 1, an internal threaded tube 13 is fixed on the outside of the pins 12, the end of the internal threaded tube 13 away from the fan clutch body 1 passes through the mounting hole 11 and extends outward, and mounting screws 14 are provided on the outside of the fan ring 6, the mounting screws 14 pass through the mounting hole 11 and are threadedly connected with the internal threaded tube 13, the internal threaded tube 13 is installed through the pins 12, and then the internal threaded tube 13 is inserted into the mounting hole 11 to position the fan clutch body 1 and the fan ring 6, ensuring that the mounting screws 14 and the internal threaded tube 13 are accurately threadedly connected.

[0029] Three groups of limit seats 15 are fixed to the inner side of the fan ring 6. The pins 12 are slidably arranged in the inner cavity of the limit seats 15. Through the cooperation of the limit seats 15 and the pins 12, when the fan clutch body 1 is installed into the fan ring 6, it is convenient to ensure that the oil injection hole 2 is aligned with the through hole 8, facilitating the oil injection work from the outside of the fan ring 6.

[0030] Support blocks 16 are arranged on the outer side of the fan clutch body 1. One side of the support blocks 16 away from the fan clutch body 1 is attached to the inner wall of the fan ring 6. Through the cooperation of the support blocks 16, the fan clutch body 1 can be supported to prevent the fan clutch body 1 from colliding with the fan ring 6.

[0031] Counterbores are provided around the inner side of the mounting holes 11, and a support spring 17 is fixed in the inner cavity of the counterbores. The movable end of the support spring 17 is fixed with a limit steel ball 18. A groove 19 is annularly provided on the outer side of the inner threaded cylinder 13. The limit steel ball 18 extends into the inner cavity of the groove 19. Through the support of the support spring 17 on the limit steel ball 18, the limit steel ball 18 is directly clamped in the groove 19 on the outer side of the inner threaded cylinder 13, preliminarily positioning the fan clutch body 1 and the fan ring 6, facilitating the fixation of the fan clutch body 1 and the fan ring 6 by using the mounting screws 14.

[0032] A notch 20 is provided at the end of the threaded post 4, and a sealing ring 21 is embedded on the outer side of the piston post 52. Through the setting of the notch 20, it is convenient for the operator to rotate the threaded post 4 by using a tool. At the same time, a sealing ring 21 is embedded on the outer side of the piston post 52 to ensure the sealing between the oil injection hole 2 and the piston block 5.

[0033] During specific use, a tool is used to penetrate the through hole 8 on the outer side of the fan ring 6 and then inserted into the oil injection hole 2. The threaded post 4 is rotated through the cooperation of the notch 20. Subsequently, the threaded post 4 rotates to drive the piston block 5 to move inward in the oil injection hole 2. When the piston post 52 separates from the narrower area outside the oil injection hole 2, the oil injection hole 2 is opened. Then, silicone oil is injected into the fan clutch body 1 through the oil injection hole 2. Then, the threaded post 4 is rotated in the reverse direction to make the piston post 52 fit with the inner wall of the oil injection hole 2 through the sealing ring 21, closing the oil injection hole 2 again. At the same time, when assembling the fan clutch body 1 and the fan ring 6, the pins 12 on the outer side of the fan clutch body 1 are moved along the limit seats 15 towards the inner side of the fan ring 6. Subsequently, the inner threaded cylinder 13 on the outer side of the fan clutch body 1 is inserted into the mounting hole 11. At the same time, the support spring 17 drives the limit steel ball 18 to be clamped with the groove 19 on the outer side of the inner threaded cylinder 13, which can preliminarily limit the fan clutch body 1 and the fan ring 6. Then, the fan clutch body 1 is installed in the fan ring 6 by using the mounting screws 14 to be threadedly connected with the inner threaded cylinder 13.

[0034] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Compound fan clutch, including a fan clutch body (1), characterized in that: An oil injection hole (2) is provided on the outer side of the fan clutch body (1). The oil injection hole (2) is distributed in a columnar shape with a wider inner part and a narrower outer part. A fixing frame (3) with holes is fixed on the inner side of the inner cavity of the oil injection hole (2). A threaded column (4) is rotatably connected to the center of the fixing frame (3) through a bearing. A piston block (5) is threadedly connected to the outer side of the threaded column (4). The piston block (5) includes a limit base (51) and a piston column (52). The piston column (52) fits against the outer side of the inner cavity of the oil injection hole (2). It further includes a fan ring (6). Multiple groups of fan blades (7) are fixed on the outer side of the fan ring (6). The fan clutch body (1) is installed inside the fan ring (6). A through hole (8) aligned with the oil injection hole (2) is provided on the outer side of the fan ring (6).

2. The composite fan clutch according to claim 1, wherein: A limit groove (9) is provided in the inner cavity of the oil injection hole (2). A limit block (10) is slidably connected in the inner cavity of the limit groove (9). The limit block (10) penetrates through the limit groove (9) and is fixed on the outer side of the limit base (51).

3. The compound fan clutch according to claim 1, characterized in that: Three mounting holes (11) are provided on the surface of the fan ring (6). Three pins (12) are fixed on the outer side of the fan clutch body (1). An internal threaded cylinder (13) is fixed on the outer side of the pin (12). One end of the internal threaded cylinder (13) away from the fan clutch body (1) penetrates through the mounting hole (11) and extends outward. A mounting screw (14) is provided on the outer side of the fan ring (6). The mounting screw (14) penetrates into the mounting hole (11) and is threadedly connected to the internal threaded cylinder (13).

4. The compound fan clutch according to claim 3, characterized in that: Three limit seats (15) are fixed on the inner side of the fan ring (6). The pins (12) are slidably arranged in the inner cavities of the limit seats (15).

5. The composite fan clutch according to claim 1, wherein: A support block (16) is provided on the outer side of the fan clutch body (1). One side of the support block (16) away from the fan clutch body (1) fits against the inner wall of the fan ring (6).

6. The compound fan clutch according to claim 3, wherein: Counterbores are provided around the inner side of the mounting hole (11), and a support spring (17) is fixed in the inner cavity of the counterbore. A limit steel ball (18) is fixed at the movable end of the support spring (17). A groove (19) is annularly provided on the outer side of the internal threaded cylinder (13). The limit steel ball (18) extends into the inner cavity of the groove (19).

7. The compound fan clutch according to claim 1, wherein: A notch (20) is provided at the end of the threaded column (4). A sealing ring (21) is embedded on the outer side of the piston column (52).

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