CN212615551U - Bearing wear-resisting type vehicle air conditioner fan - Google Patents
Bearing wear-resisting type vehicle air conditioner fan Download PDFInfo
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- CN212615551U CN212615551U CN202020962519.9U CN202020962519U CN212615551U CN 212615551 U CN212615551 U CN 212615551U CN 202020962519 U CN202020962519 U CN 202020962519U CN 212615551 U CN212615551 U CN 212615551U
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Abstract
The utility model discloses a wear-resisting type vehicle air conditioner fan of bearing, including the motor, have the pivot on the motor, dispose two oil bearings in the pivot, the pivot end connection has the wind wheel, and the pivot includes cylinder section and "D" shape section, "D" shape section is connected with the wind wheel, and the external diameter of "D" shape section is less than the external diameter of cylinder section. Make cylinder section can not produce wearing and tearing to the inner bore wall of oiliness bearing when the oiliness bearing hole rotates like this for the wear resistance of oiliness bearing waits to improve, and then increase of service life.
Description
Technical Field
The utility model relates to a vehicle air conditioner fan, concretely relates to wear-resisting type vehicle air conditioner fan of bearing.
Background
A general automobile air-conditioning fan comprises a motor and a wind wheel connected to the motor, the end part of a rotating shaft of the motor is arranged in a D shape, as shown in figure 1, the structure of the fan comprises a motor 20 and a wind wheel 30, the rotating shaft 20 of the motor is provided with a D-shaped shaft section 10, an oil-containing bearing 40 is arranged on the rotating shaft 20, an impeller is matched with the D-shaped shaft section 10, and a D slot matched with the D shape is arranged on the impeller to prevent the impeller from rotating in the rotating process, the conventional design diameters of the rotating shaft 20 are the same size, when the rotating shaft is produced, because the tolerance of the outer diameter of the shaft is very precise, the outer diameter can not be milled first and then milled flat, when the impeller is milled flat, the two sides of the D shape are easy to generate deformation and burrs, and the assembly can not penetrate, but when the outer diameter of the structure is milled, because of the unbalanced force at the D shape, the outer diameter of the shaft can, due to the ellipse of the shaft, the oil-containing bearing is seriously abraded, and the service life of the product is influenced.
Disclosure of Invention
In order to solve the problem, an object of the utility model is to provide a wear-resisting type vehicle air conditioner fan of bearing, mainly through the structure that changes the pivot for the pivot keeps better circularity when the excircle is ground.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a wear-resisting type vehicle air conditioner fan of bearing, includes the motor, has the pivot on the motor, disposes two oiliness bearings in the pivot, and pivot end connection has the wind wheel, the pivot includes cylinder section and "D" shape section, "D" shape section is connected with the wind wheel, the external diameter of "D" shape section is less than the external diameter of cylinder section.
One of the two oil-containing bearings is arranged at the front end in the motor, and the other oil-containing bearing is arranged at the tail end in the motor.
The oil-retaining bearing is made of powder metallurgy materials, and the peripheral wall of the oil-retaining bearing is provided with an annular arc-shaped protruding part.
The utility model discloses a structure, because the section external diameter that appears of changeing epaxial "D" is less than changeing epaxial cylinder section, make the pivot can avoid the interference of "D" shape section when grinding the excircle, make cylinder section circularity better when the correct grinding, can not produce oval state, make cylinder section can not produce wearing and tearing to the interior pore wall of oil-retaining bearing when the oil-retaining bearing hole rotates like this, make the wear resistance of oil-retaining bearing wait to improve, and then increase of service life.
The invention is further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a structural diagram of a prior art fan in a disassembled state;
FIG. 2 is a view showing an exploded view of an embodiment of the present invention;
fig. 3 is an enlarged view of a in fig. 2.
Detailed Description
The present invention is described in detail below with reference to the following examples, which are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention.
As shown in fig. 2 and fig. 3, the embodiment discloses a bearing wear-resistant type automobile air conditioning fan, which includes a motor 1, a rotating shaft 2 is provided on the motor 1, two oil-retaining bearings 4 are configured on the rotating shaft 2, a wind wheel 3 is connected to an end of the rotating shaft 2, the rotating shaft 2 includes a cylindrical section 21 and a "D" section 22, the "D" section 22 is connected to the wind wheel 3, and the "D" section 22 is formed by a milling machine and then is turned to a smaller outer circle position, so that the outer diameter of the "D" section 22 is smaller than the outer diameter of the cylindrical section 21.
One of the two oil-retaining bearings 4 is arranged at the front end in the motor 1, and the other oil-retaining bearing is arranged at the tail end in the motor 1. The oil-retaining bearing 4 acts on the rotating shaft 2 to ensure that the rotating shaft 2 rotates more stably.
The oil-retaining bearing 4 is made of powder metallurgy, the outer peripheral wall of the oil-retaining bearing 4 is provided with an annular arc-shaped protruding part 41, the wall thickness of the oil-retaining bearing 4 can be effectively increased by the arc-shaped protruding part 41, and the oil content of the oil-retaining bearing is increased to ensure the continuous lubricating effect.
Adopt above-mentioned technical scheme, because "D" shape section 22 external diameter on the pivot 2 is less than the cylinder section 21 on the pivot 2, make the pivot 2 can avoid "D" shape section 22's interference when the excircle is ground, make cylinder section 21 circularity better when the correct grinding, can not produce the ellipse state, make cylinder section 21 can not produce wearing and tearing to the inner bore wall of oil-retaining bearing 4 when the oil-retaining bearing 4 hole rotates like this, make the wear resistance of oil-retaining bearing 4 wait to improve, and then increase of service life, it is more smooth-going to make the operation of wind wheel 3 more simultaneously, the silence.
Claims (3)
1. The utility model provides a wear-resisting type vehicle air conditioner fan of bearing, includes the motor, has the pivot on the motor, disposes two oil bearings in the pivot, and pivot end connection has the wind wheel, the pivot includes cylinder section and "D" shape section, "D" shape section is connected its characterized in that with the wind wheel: the outer diameter of the D-shaped section is smaller than the outer diameter of the cylindrical section.
2. The bearing wear-resistant automobile air conditioner fan as claimed in claim 1, wherein: one of the two oil-containing bearings is arranged at the front end in the motor, and the other oil-containing bearing is arranged at the tail end in the motor.
3. The bearing wear-resistant automobile air conditioner fan according to claim 1 or 2, characterized in that: the oil-retaining bearing is made of powder metallurgy materials, and the peripheral wall of the oil-retaining bearing is provided with an annular arc-shaped protruding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020962519.9U CN212615551U (en) | 2020-06-01 | 2020-06-01 | Bearing wear-resisting type vehicle air conditioner fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020962519.9U CN212615551U (en) | 2020-06-01 | 2020-06-01 | Bearing wear-resisting type vehicle air conditioner fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212615551U true CN212615551U (en) | 2021-02-26 |
Family
ID=74750254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020962519.9U Active CN212615551U (en) | 2020-06-01 | 2020-06-01 | Bearing wear-resisting type vehicle air conditioner fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212615551U (en) |
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2020
- 2020-06-01 CN CN202020962519.9U patent/CN212615551U/en active Active
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