CN213425900U - Powder metallurgy motor cover - Google Patents
Powder metallurgy motor cover Download PDFInfo
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- CN213425900U CN213425900U CN202022757587.4U CN202022757587U CN213425900U CN 213425900 U CN213425900 U CN 213425900U CN 202022757587 U CN202022757587 U CN 202022757587U CN 213425900 U CN213425900 U CN 213425900U
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- cavity
- powder metallurgy
- wall
- motor cover
- arcuation
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Abstract
The utility model discloses a powder metallurgy motor cover, including the downward tubbiness cavity of opening, the cavity includes upper chamber and lower chamber of intercommunication, the upper chamber aperture is less than the lower chamber aperture, in the lower chamber, the lower chamber inner wall is provided with the screw thread, the screw thread sets up in the middle part of lower chamber inner wall; at the cavity outer wall, the cavity top is provided with cyclic annular step, the cavity middle part is provided with a plurality of arcuation recesses, the arcuation recess all sets up along the cavity axial, the arcuation recess extends to cyclic annular step, be provided with the slope between arcuation recess and the cavity bottom. The utility model discloses inside screw thread adopts powder metallurgy technique one shot forming, need not further precision finishing, not only improves product strength and machining efficiency, also can reduce the processing cost.
Description
Technical Field
The utility model relates to a powder metallurgy motor shroud belongs to powder metallurgy manufacturing technical field.
Background
Powder metallurgy is a process technology for manufacturing metal materials, composites and various types of products by taking metal powder (or a mixture of metal powder and nonmetal powder) as a raw material, forming and sintering.
The essence of die casting is a method in which a liquid or semi-liquid metal is filled into a die cavity of a die casting mold (die casting die) at a high speed under the action of high pressure, and is formed and solidified under pressure to obtain a casting. The motor cover manufactured by the method has poor precision and low strength. And the precision casting precision is poor, the efficiency is low and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adopt powder metallurgy, can improve machining efficiency, increase strength, reduce cost's motor shroud.
In order to achieve the technical purpose, the technical scheme of the utility model is that:
the powder metallurgy motor cover comprises a barrel-shaped cavity with a downward opening, wherein the cavity comprises an upper cavity and a lower cavity which are communicated with each other, the aperture of the upper cavity is smaller than that of the lower cavity, and the inner wall of the lower cavity is provided with threads in the lower cavity, and the threads are arranged in the middle of the inner wall of the lower cavity; at the cavity outer wall, the cavity top is provided with cyclic annular step, the cavity middle part is provided with a plurality of arcuation recesses, the arcuation recess all sets up along the cavity axial, the arcuation recess extends to cyclic annular step, be provided with the slope between arcuation recess and the cavity bottom.
The included angle of the two walls of the arc-shaped groove is 60 degrees.
A plurality of arc-shaped grooves are sequentially and circumferentially and uniformly arranged on the outer wall of the cavity.
Eight arc-shaped grooves are formed in the middle of the cavity.
The included angle between the slope and the outer surface of the cavity is 150 degrees.
And the top end of the outer wall of the cavity is provided with an arc chamfer.
The utility model provides a powder metallurgy motor shroud, its inside screw thread adopts powder metallurgy technique one shot forming, need not further precision finishing, not only improves product strength and machining efficiency, also can reduce the processing cost. Meanwhile, the arc-shaped groove on the outer wall of the cover cap can increase the rotation resistance of the cover cap.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the cross-sectional structure of the present invention.
Fig. 2 is a schematic view of the top view structure of the present invention.
Detailed Description
As shown in fig. 1-2, the powder metallurgy motor cover comprises a barrel-shaped cavity 1 with a downward opening, the cavity 1 comprises an upper cavity 11 and a lower cavity 12 which are communicated with each other, the aperture of the upper cavity 11 is smaller than that of the lower cavity 12, in the lower cavity 12, the inner wall of the lower cavity 12 is provided with a thread 13, and the thread 13 is arranged in the middle of the inner wall of the lower cavity 12.
At cavity 1 outer wall, cavity 1 top is provided with cyclic annular step 21, cavity 1 middle part is provided with eight (also can set up to a plurality of) arcuation recesses 22, and eight arcuation recesses 22 all set up along 1 axial of cavity, and eight arcuation recesses 22 circumference evenly set up on cavity 1's outer wall in proper order, arcuation recesses 22 extend to cyclic annular step 21, and cyclic annular step 21 intercommunication, the contained angle of two walls of arcuation recess 22 is 60.
A slope 23 is arranged between the arc-shaped groove 22 and the bottom of the cavity 1, and the included angle between the slope 23 and the bottom of the arc-shaped groove 22 is 150 degrees.
And the top end of the outer wall of the cavity 1 is provided with an arc chamfer 25.
The utility model provides a powder metallurgy motor shroud, its inside screw thread adopts powder metallurgy technique one shot forming, need not further precision finishing, not only improves product strength and machining efficiency, also can reduce the processing cost. Meanwhile, the arc-shaped groove on the outer wall of the cover cap can increase the rotation resistance of the cover cap.
The above-mentioned embodiment does not limit the utility model in any way, and all the technical solutions that adopt the mode of equivalent replacement or equivalent transform to obtain all fall within the protection scope of the utility model.
Claims (6)
1. The powder metallurgy motor cover is characterized by comprising a barrel-shaped cavity (1) with a downward opening, wherein the cavity (1) comprises an upper cavity (11) and a lower cavity (12) which are communicated with each other, the aperture of the upper cavity (11) is smaller than that of the lower cavity (12), threads (13) are arranged on the inner wall of the lower cavity (12) in the lower cavity (12), and the threads (13) are arranged in the middle of the inner wall of the lower cavity (12); at cavity (1) outer wall, cavity (1) top is provided with cyclic annular step (21), cavity (1) middle part is provided with a plurality of arcuation recesses (22), arcuation recess (22) all set up along cavity (1) axial, arcuation recess (22) extend to cyclic annular step (21), be provided with slope (23) between arcuation recess (22) and cavity (1) bottom.
2. The powder metallurgy motor cover according to claim 1, wherein: the included angle between the two walls of the arc-shaped groove (22) is 60 degrees.
3. The powder metallurgy motor cover according to claim 1, wherein: the arc-shaped grooves (22) are sequentially and uniformly arranged on the outer wall of the cavity (1) in the circumferential direction.
4. The powder metallurgy motor cover according to claim 1, wherein: eight arc-shaped grooves (22) are arranged in the middle of the cavity (1).
5. The powder metallurgy motor cover according to claim 1, wherein: the included angle between the slope (23) and the bottom of the arc-shaped groove (22) is 150 degrees.
6. The powder metallurgy motor cover according to claim 1, wherein: and an arc chamfer (25) is arranged at the top end of the outer wall of the cavity (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022757587.4U CN213425900U (en) | 2020-11-25 | 2020-11-25 | Powder metallurgy motor cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022757587.4U CN213425900U (en) | 2020-11-25 | 2020-11-25 | Powder metallurgy motor cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213425900U true CN213425900U (en) | 2021-06-11 |
Family
ID=76252404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022757587.4U Active CN213425900U (en) | 2020-11-25 | 2020-11-25 | Powder metallurgy motor cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213425900U (en) |
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2020
- 2020-11-25 CN CN202022757587.4U patent/CN213425900U/en active Active
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