CN220570389U - Fixing structure of aviation micro-special motor shell and end cover - Google Patents
Fixing structure of aviation micro-special motor shell and end cover Download PDFInfo
- Publication number
- CN220570389U CN220570389U CN202322318324.7U CN202322318324U CN220570389U CN 220570389 U CN220570389 U CN 220570389U CN 202322318324 U CN202322318324 U CN 202322318324U CN 220570389 U CN220570389 U CN 220570389U
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- special
- end cover
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- motor
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Abstract
The utility model belongs to the technical field of aviation motor design, and relates to a novel fixing structure of an aviation micro-special motor shell and an end cover. The motor comprises a motor shell (1), an end cover (2), a special-shaped gasket (3), a spring washer (4) and a screw (5); according to the utility model, a flat gasket for radially fixing an aviation micro-special motor shell and an end cover is changed into a special-shaped gasket, and the surface, which is attached to the motor end cover, of the special-shaped gasket is a cambered surface with the same diameter and size as the outer surface of the motor; the other surface is contacted with the spring washer to be a plane, so that the cambered surface of the special-shaped gasket is completely contacted with the outer circle of the end cover, the pretightening force of screw fixation is ensured, and the fixing reliability of the screw is improved.
Description
Technical Field
The utility model belongs to the technical field of aviation motor design, and relates to a fixing structure of an aviation micro-special motor shell and an end cover.
Technical Field
Because of the small size of the aviation micro-special motor, the fixing reliability of the shell and the end cover is a difficult problem. The conventional micro-special motor stator is fixed with the end cover through the tooth mouth of the shell body and the end cover, and then is fixed through axial or radial fixation by using a screw, a flat washer and a spring washer, when the screw can not be fixed in an axial mode due to size limitation, if the radial fixation still adopts the flat washer mode, the contact surface between the flat washer and the outer surface of the motor is less due to the circular structure of the outer surface of the motor, so that the reliability of the screw fixation is reduced.
Disclosure of Invention
The purpose of the utility model is that: in order to solve the technical problems, a novel fixing structure of an aviation micro-special motor shell and an end cover is designed.
The technical scheme of the utility model is as follows: the novel fixing structure of the aviation micro-special motor shell and the end cover is characterized by comprising a motor shell 1, the end cover 2, a special-shaped gasket 3, a spring washer 4 and a screw 5; the end cover 2, the special-shaped gasket 3 and the spring washer 4 are sequentially arranged on the motor shell 1, and the spring washer 4, the special-shaped gasket 3 and the end cover 2 are fixed on the motor shell 1 through screws 5.
The joint surface of the special-shaped gasket 3 and the motor end cover 2 is an arc surface consistent with the outer surface of the motor.
The contact surface of the special-shaped gasket 3 and the spring washer 4 is a plane.
The special-shaped gasket 3 is made of 1Cr18Ni9Ti.
The motor shell 1 is matched with the end cover 2 through a tooth mouth.
Screw holes are formed in the tooth openings of the motor shell 1, screw through holes are formed in the tooth openings of the end cover 2, screw through holes are formed in the centers of the special-shaped gaskets 3, cambered surfaces of the special-shaped gaskets 3 are tightly attached to the outer circle of the end cover, and screws 5 penetrate through the spring washers 4, the special-shaped gaskets 3 and the screw through holes of the end cover 2 to be screwed in the screw holes of the shell 1.
The utility model has the technical effects that: according to the utility model, a flat gasket for radially fixing an aviation micro-special motor shell and an end cover is changed into a special-shaped gasket, and the surface, which is attached to the motor end cover, of the special-shaped gasket is a cambered surface with the same diameter and size as the outer surface of the motor; the other surface is contacted with the spring washer to be a plane, so that the cambered surface of the special-shaped gasket is completely contacted with the outer circle of the end cover, the pretightening force of screw fixation is ensured, and the fixing reliability of the screw is improved. This improves the reliability of the screw fixation.
Drawings
FIG. 1 is a schematic view of a fixing structure of a shell and an end cover;
FIG. 2 is a cross-sectional view of a profiled shim;
FIG. 3 is a schematic view of a profiled shim.
Wherein: 1-motor shell, 2-end cover, 3-special-shaped gasket, 4-spring washer and 5-screw
The specific embodiment is as follows:
the utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1, the novel fixing structure of the aviation micro-special motor shell and the end cover comprises a motor shell 1, the end cover 2, a special-shaped gasket 3, a spring washer 4 and a screw 5; the end cover 2, the special-shaped gasket 3 and the spring washer 4 are sequentially arranged on the motor shell 1, and the spring washer 4, the special-shaped gasket 3 and the end cover 2 are fixed on the motor shell 1 through screws 5.
The shell 1 is matched with the end cover 2 through a tooth opening, a threaded hole is processed at the tooth opening of the shell, and a screw through hole is processed at the tooth opening of the end cover 2.
The schematic diagram of the special-shaped gasket 3 is shown in fig. 2-3, and the material is class 1Cr18Ni9Ti. The center of the special-shaped gasket 3 is provided with a screw through hole, and the joint surface of the special-shaped gasket 3 and the motor end cover 2 is an arc surface consistent with the diameter size of the outer surface of the motor.
The cambered surface of the special-shaped gasket 3 is tightly attached to the outer circle of the end cover 2, and the screw 5 penetrates through the spring washer 4, the special-shaped gasket 3 and the through hole of the end cover 2 to be screwed in the threaded hole of the shell 1, so that the shell 1 and the end cover 2 are reliably fixed.
Claims (6)
1. The fixing structure of the aviation micro-special motor shell and the end cover is characterized by comprising a motor shell (1), the end cover (2), a special-shaped gasket (3), a spring washer (4) and a screw (5); the end cover (2), the special-shaped gasket (3) and the spring washer (4) are sequentially arranged on the motor shell (1), and the spring washer (4), the special-shaped gasket (3) and the end cover (2) are fixed on the motor shell (1) through screws (5).
2. The fixing structure of the aviation micro-special motor shell and the end cover according to claim 1, wherein the joint surface of the special-shaped gasket (3) and the motor end cover (2) is an arc surface consistent with the outer surface of the motor.
3. The fixing structure of the aviation micro-special motor shell and the end cover according to claim 1, wherein the contact surface of the special-shaped gasket (3) and the spring washer (4) is a plane.
4. The fixing structure of the aviation micro-special motor shell and the end cover according to claim 1, wherein the special-shaped gasket (3) is made of 1Cr18Ni9Ti.
5. The fixation structure of aviation micro-special motor shell and end cover according to claim 1, wherein the motor shell (1) and the end cover (2) are matched through tooth openings.
6. The fixing structure of the aviation micro-special motor shell and the end cover according to claim 1, wherein threaded holes are formed in the tooth openings of the motor shell (1), screw through holes are formed in the tooth openings of the end cover (2), screw through holes are formed in the centers of the special-shaped gaskets (3), cambered surfaces of the special-shaped gaskets (3) are tightly attached to the outer circle of the end cover, and screws (5) penetrate through the spring washers (4), the special-shaped gaskets (3) and the through holes of the end cover (2) to be screwed in the threaded holes of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322318324.7U CN220570389U (en) | 2023-08-28 | 2023-08-28 | Fixing structure of aviation micro-special motor shell and end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322318324.7U CN220570389U (en) | 2023-08-28 | 2023-08-28 | Fixing structure of aviation micro-special motor shell and end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220570389U true CN220570389U (en) | 2024-03-08 |
Family
ID=90093296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322318324.7U Active CN220570389U (en) | 2023-08-28 | 2023-08-28 | Fixing structure of aviation micro-special motor shell and end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220570389U (en) |
-
2023
- 2023-08-28 CN CN202322318324.7U patent/CN220570389U/en active Active
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