CN209743235U - Fan blade device of automobile generator rotor - Google Patents
Fan blade device of automobile generator rotor Download PDFInfo
- Publication number
- CN209743235U CN209743235U CN201920515789.2U CN201920515789U CN209743235U CN 209743235 U CN209743235 U CN 209743235U CN 201920515789 U CN201920515789 U CN 201920515789U CN 209743235 U CN209743235 U CN 209743235U
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- Prior art keywords
- fan blade
- positioning hole
- connecting ring
- positioning
- fan
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Abstract
The utility model discloses a fan blade device of an automobile generator rotor, which comprises a fan blade, a connecting ring and a positioning column; the connecting ring is annularly provided with two rows of slots; the fan blades are inserted into the slots, and each row of the fan blades are arranged in the same direction and two rows of the fan blades are arranged in the opposite direction; the fan blade is provided with a first positioning hole, the connecting ring is provided with a second positioning hole, and the positioning column penetrates through the first positioning hole and the second positioning hole to connect the fan blade and the connecting ring. The utility model discloses beneficial effect does: the fan blades arranged in the two directions accelerate the discharge of high-temperature gas in the motor, radiate the polar claws, improve the radiating effect and effectively prevent the influence caused by the temperature rise of the motor.
Description
Technical Field
the utility model relates to an automobile power generation machine field specifically is a fan blade device of automobile power generation machine rotor.
Background
The existing generator rotor is internally provided with a cooling fan to cool the inside of the generator. The performance of the generator can be affected by overhigh temperature, and the heat dissipation effect of the heat dissipation fan on the existing rotor is general, so that heat cannot be timely discharged when the generator works at full load, and the service life of the generator is greatly shortened, so that a fan blade device with better heat dissipation effect is needed to be designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, provide a fan blade device of automobile power generation machine rotor.
In order to solve the above problem, the utility model provides a following technical scheme:
a fan blade device of an automobile generator rotor is characterized by comprising a fan blade, a connecting ring and a positioning column; the connecting ring is annularly provided with two rows of slots; the fan blades are inserted into the slots, and each row of the fan blades are arranged in the same direction and two rows of the fan blades are arranged in the opposite direction; the fan blade is provided with a first positioning hole, the connecting ring is provided with a second positioning hole, and the positioning column penetrates through the first positioning hole and the second positioning hole to connect the fan blade and the connecting ring.
Furthermore, each row of the slots is uniformly distributed in a circumferential array, and the two rows are arranged in a staggered manner.
Furthermore, the fan blade drives the air flow part to be a bent square fan blade.
Furthermore, the positioning column is in interference fit with the first positioning hole and the second positioning hole, and the length of the positioning column is larger than that of the second positioning hole.
Further, the inner ring of the connecting ring is provided with knurls.
The utility model discloses there is following beneficial effect:
The fan blades are arranged in two rows along the circumferential direction, each row is arranged in the same direction, and the two rows are arranged in the opposite direction. When the motor rotates, the fan blades facing the end covers accelerate the discharge of high-temperature gas in the motor, and the fan blades facing the polar claws radiate the polar claws, so that the radiating effect is improved, and the influence caused by the temperature rise of the motor is effectively prevented.
The circumferential positioning is carried out through the interference fit of the slot and the fan blade and the interference fit of the positioning column, the first positioning hole and the second positioning hole, the reliability of the positioning of the fan blade is ensured, and the fan blade cannot fall off during high-speed rotation;
The length of the positioning column is larger than the depth of the second positioning hole, when the positioning column is disassembled, the part of the positioning column extending out of the annular surface of the connecting ring can be clamped, and the disassembly is more convenient and quicker.
The connecting ring is fixedly connected with the rotor shaft of the automobile generator through the knurls arranged on the inner ring, and the axial positioning of the fan blades is carried out, so that the fan blades can synchronously rotate along with the rotating shaft. And the knurl uses interference fit with the cooperation of rotor shaft, has guaranteed the reliability of location.
drawings
Fig. 1 is an overall schematic view of a fan blade device;
FIG. 2 is a schematic view of a part of a fan blade device;
FIG. 3 is a schematic view of a fan blade;
FIG. 4 is a schematic view of a connection ring;
Fig. 5 is a schematic view of the fan blade device mounted on the rotor.
Wherein, 1: a fan blade; 11: a first positioning hole; 2: a connecting ring; 21: a slot; 22: a second positioning hole; 23: knurling; 3: a positioning column; 4: a rotor shaft; 5: a polar claw.
Detailed Description
A fan blade device of an automobile generator rotor comprises a fan blade 1, a connecting ring 2 and a positioning column 3; two rows of slots 21 are circumferentially arranged on the connecting ring 2, six slots are arranged in each row, the slots are uniformly distributed in a circumferential array, and the slots are arranged in two rows in a staggered manner. The fan blades 1 are inserted into the slots 21, each exhaust blade is arranged in the same direction, and the two rows of fan blades are arranged in opposite directions. The fan blade 1 and the slot 21 are in interference fit.
The shape of the slot 21 may be straight or curved arc. The air flow part driven by the fan blade 1 can be a bent square fan blade or a larger fan-shaped fan blade.
The fan blade 1 is provided with a first positioning hole 11, the connecting ring 2 is provided with a second positioning hole 22, and the positioning column 3 penetrates through the first positioning hole 11 and the second positioning hole 22 to fix the fan blade 1 on the connecting ring 2. In order to prevent the fan blade 1 from loosening, the positioning column 3 is in interference fit with the first positioning hole 11 and the second positioning hole 22. Meanwhile, for convenience of assembly and disassembly, the length of the positioning column 3 is greater than that of the second positioning hole 22.
And the inner ring of the connecting ring is provided with a knurl 23 which is sleeved on the rotor shaft 4 of the automobile generator. In order to prevent the connecting ring 2 from loosening when the rotor shaft 4 runs at a high speed, the connecting ring 2 is in interference fit with the rotating shaft 4.
After the installation, when rotor shaft 4 rotated, a set of fan blade faced the generator outside, had accelerated the discharge of the high temperature gas in the motor, and another set of fan blade faced utmost point claw 5, dispels the heat to utmost point claw 5.
Claims (5)
1. a fan blade device of an automobile generator rotor is characterized by comprising a fan blade (1), a connecting ring (2) and a positioning column (3); two rows of slots (21) are annularly arranged on the connecting ring (2); the fan blades (1) are inserted into the slots (21), and each row is arranged in the same direction and two rows are arranged in opposite directions; the fan blade (1) is provided with a first positioning hole (11), the connecting ring (2) is provided with a second positioning hole (22), and the positioning column (3) penetrates through the first positioning hole (11) and the second positioning hole (22) to connect the fan blade (1) and the connecting ring (2).
2. The fan blade device of the automobile generator rotor as claimed in claim 1, wherein each row of the slots (21) is uniformly distributed in a circumferential array, and two rows are staggered.
3. The fan blade device of the automobile generator rotor as claimed in claim 1, wherein the fan blade (1) drives the air flow portion to be a curved square fan blade.
4. the fan blade device of the automobile generator rotor as claimed in claim 1, wherein the positioning post (3) is in interference fit with the first positioning hole (11) and the second positioning hole (22), and the length of the positioning post is greater than that of the second positioning hole (22).
5. The fan blade device of the automobile generator rotor as claimed in claim 1, wherein the inner ring of the connecting ring (2) is provided with knurls (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920515789.2U CN209743235U (en) | 2019-04-17 | 2019-04-17 | Fan blade device of automobile generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920515789.2U CN209743235U (en) | 2019-04-17 | 2019-04-17 | Fan blade device of automobile generator rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743235U true CN209743235U (en) | 2019-12-06 |
Family
ID=68721038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920515789.2U Active CN209743235U (en) | 2019-04-17 | 2019-04-17 | Fan blade device of automobile generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743235U (en) |
-
2019
- 2019-04-17 CN CN201920515789.2U patent/CN209743235U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |