CN202978472U - Near-net forming motor powder metallurgy rotor - Google Patents
Near-net forming motor powder metallurgy rotor Download PDFInfo
- Publication number
- CN202978472U CN202978472U CN 201220605716 CN201220605716U CN202978472U CN 202978472 U CN202978472 U CN 202978472U CN 201220605716 CN201220605716 CN 201220605716 CN 201220605716 U CN201220605716 U CN 201220605716U CN 202978472 U CN202978472 U CN 202978472U
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- China
- Prior art keywords
- rotor
- installation straight
- powder metallurgy
- blade installation
- straight flute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a near-net forming motor powder metallurgy rotor. The rotor comprises rotor body. The rotor body is provided with a center hole and a blade installation straight flute. The rotor body is a component which takes powder metallurgy as a main body. A bottom of the blade installation straight flute adopts fillet transition connection. A working surface of the blade installation straight flute is provided with a wear-resistant composite layer. The rotor of the utility model is manufactured by using a near-net forming powder metallurgy technology. A small amount of machining is needed. A material utilization rate is high and working hours are saved. The working surface of the blade installation straight flute is provided with the wear-resistant composite layer, which can greatly increase wear resistance performance of an eccentric ring. Heat treatment is not needed. The bottom of the blade installation straight flute adopts the fillet transition connection so that stress of the bottom of the blade installation straight flute can be greatly reduced and a service life of the motor rotor can be effectively prolonged.
Description
Technical field
The utility model relates to a kind of motor rotor, and more particularly, the utility model relates to a kind of motor rotor that adopts the preparation of near-net-shape technique.
Background technology
Motor rotor is one of part of motor key, and main body is rotor block, and rotor block is provided with the blades installation straight trough, and when motor rotor rotated, blade slided in the blades installation straight trough.The motor rotor of prior art is generally medium carbon steel or steel alloy, through processing, heat treatment forms, by heat treatment so that the blades installation straight trough has certain resistance to wear.Be that wedge angle connects bottom the blades installation straight trough of the motor rotor of prior art, easily produce stress and concentrate, after heat treatment, the stress of blades installation straight trough bottom sharp corner can be larger, in use, the easy stress of blades installation straight trough bottom sharp corner is concentrated and is produced phenomenon of rupture.For this problem, often reduce now the stress of blades installation straight trough bottom sharp corner by reducing the hardness of material after heat treatment, but can reduce like this resistance to wear of blades installation straight trough working surface, shorten the useful life of motor rotor.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of blades installation straight trough that can make to obtain higher resistance to wear, can significantly reduce again the near-net-shape motor powder metallurgy rotor of blades installation straight trough bottom stress, use this structure, but the useful life of significant prolongation motor rotor.
The utility model is achieved through the following technical solutions technical goal.
Near-net-shape motor powder metallurgy rotor comprises rotor block, and described rotor block is provided with centre bore, blades installation straight trough, and its improvements are: described rotor block is the member take powder metallurgy as main body; Described blades installation straight trough bottom adopts round-corner transition to connect; Described blades installation straight trough working surface is provided with wear-resistant composite bed.
The further technical scheme of the utility model is: the described wear-resistant composite bed rare earth compound composite bed that is.
The utility model further technical scheme is: described wear-resistant composite bed thickness is 0.2-1.8mm.
The utility model compared with prior art has following good effect:
1, adopt the powder metallurgical technique preparation, only need a small amount of machining, stock utilization is high, saves man-hour, and comparatively economy reaches machining accuracy.
2, blades installation straight trough working surface is provided with wear-resistant composite bedly, can significantly improve the resistance to wear of eccentric hoop.
3, need not to heat-treat, blades installation straight trough bottom adopts round-corner transition to connect in addition, can significantly reduce the stress of blades installation straight trough bottom.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the I part enlarged diagram in Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with embodiment.
Near-net-shape motor powder metallurgy rotor shown in the drawings comprises rotor block 1, and rotor block 1 is provided with centre bore 2, blades installation straight trough 3, and rotor block is the member take powder metallurgy as main body, and blades installation straight trough 3 bottoms employing round-corner transitions connect; It is wear-resistant composite bed 4 that blades installation straight trough 3 working surfaces are provided with, and preferred version: wear-resistant composite bed 4 is the rare earth compound composite bed, and its thickness is 0.2-1.8mm, and in the present embodiment, wear-resistant composite bed 4 thickness is 0.5mm.
The utility model adopts the powder metallurgical technique preparation, only needs a small amount of machining, and stock utilization is high, saves man-hour, and comparatively economy reaches machining accuracy; It is wear-resistant composite bed 4 that blades installation straight trough 3 working surfaces are provided with, and can significantly improve the resistance to wear of eccentric hoop; Need not to heat-treat, blades installation straight trough 3 bottoms adopt round-corner transition to connect in addition, can significantly reduce the stress of blades installation straight trough 3 bottoms, effectively extend the useful life of motor rotor.
Claims (3)
1. a near-net-shape motor powder metallurgy rotor, comprise rotor block (1), and described rotor block (1) is provided with centre bore (2), blades installation straight trough (3), it is characterized in that: described rotor block (1) is the member take powder metallurgy as main body; Described blades installation straight trough (3) bottom adopts round-corner transition to connect; Described blades installation straight trough (3) working surface is provided with wear-resistant composite bed (4).
2. near-net-shape motor powder metallurgy rotor according to claim 1 is characterized in that: described wear-resistant composite bed (4) are the rare earth compound composite bed.
3. near-net-shape motor powder metallurgy rotor according to claim 1 and 2, it is characterized in that: the thickness of described wear-resistant composite bed (4) is 0.2-1.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605716 CN202978472U (en) | 2012-11-16 | 2012-11-16 | Near-net forming motor powder metallurgy rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605716 CN202978472U (en) | 2012-11-16 | 2012-11-16 | Near-net forming motor powder metallurgy rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978472U true CN202978472U (en) | 2013-06-05 |
Family
ID=48519496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605716 Expired - Fee Related CN202978472U (en) | 2012-11-16 | 2012-11-16 | Near-net forming motor powder metallurgy rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978472U (en) |
-
2012
- 2012-11-16 CN CN 201220605716 patent/CN202978472U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20151116 |
|
| EXPY | Termination of patent right or utility model |