CN201969863U - Dummy shaft system used for pressure die casting for copper rotor - Google Patents
Dummy shaft system used for pressure die casting for copper rotor Download PDFInfo
- Publication number
- CN201969863U CN201969863U CN201020649685XU CN201020649685U CN201969863U CN 201969863 U CN201969863 U CN 201969863U CN 201020649685X U CN201020649685X U CN 201020649685XU CN 201020649685 U CN201020649685 U CN 201020649685U CN 201969863 U CN201969863 U CN 201969863U
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- dummy shaft
- rotor
- die casting
- axle
- shaft system
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Abstract
The utility model relates to a dummy shaft system used for pressure die casting for a copper rotor, belonging to the technical field of pressure die casting equipment. The dummy shaft system consists of a mandrel (1), an adjusting washer (2), a dummy shaft expansion sleeve (3) and a shaft center sleeve (5), steel sheets (7) of a to-be-processed rotor, compressing sleeves (4) and compressing nuts (6), wherein the adjusting washer (2), the dummy shaft expansion sleeve (3) and the shaft center sleeve (5) are sleeved on the mandrel (1) in sequence; the steel sheets (7) of the to-be-processed rotor are arranged on the dummy shaft expansion sleeve (3), and the compressing sleeves (4) and the compressing nuts (6) are matched with the steel sheets (7) of the to-be-processed rotor. In the utility model, the parts of the dummy shaft system are bought on the market or are manufactured according to a conventional method. Compared with the prior art, the dummy shaft system has the advantages that the structure is simple, the operation is convenient, no damage is caused to castings, the application range is wide, one set of mandrel can be used for the product with different inside diameters of steel sheets or the product with the same inside diameter and different iron core lengths.
Description
Technical field:
The utility model relates to a kind of copper rotor die casting dummy shaft system, belongs to the die-casting technique field.
Background technology:
Compression casting motor cage rotor technology, be to be put in the mould after adopting dummy shaft that the steel disc closed assembly is become iron core, by the moulding in the mold cavity of injection after aluminium or the copper melting being cast out the method for cast-aluminum rotor and copper casting rotor, in traditional handicraft, the rotor steel disc all adopts dummy shaft and key to come closed assembly, China overwhelming majority motor producer, in the aluminium motor rotor die-casting, come the closed assembly steel disc with traditional dummy shaft and key, because aluminium motor rotor die-casting temperature is lower than 700 ℃, temperature of rotor has only 200～300 ℃ after the die casting, adopts the dummy shaft of conventional carbon steel processing and the production requirement that key just can satisfy cast-aluminum rotor.
Yet use copper bar soldering copper rotor to occur in five sixties of 20th century, and so far through the development of decades, realized utilizing the technology of compression casting fine copper rotor, and through long-term development verified compression casting fine copper rotor can not only improve the efficient of motor, and improved production efficiency greatly, but, fine copper die casting uses copper potting syrup temperature up to more than 1200 ℃, make the mould temperature comprise that the rotor core temperature rises to rapidly more than 700 ℃ behind the die cast, adopt traditional dummy shaft system die casting fine copper rotor to cause casting back rotor to move back the axle difficulty.In addition, in moving back a process, easily produce distortion such as rotor core steel disc drum sheet, fin, cause rotor later stage sleeve assembling difficulty, serious situation can pull dummy shaft or rotor core and cause dummy shaft and foundry goods to be scrapped.
Summary of the invention:
The purpose of this utility model is the shortcoming or the deficiency that overcome or avoid above-mentioned conventional art to exist in fine copper cage rotor die-casting technique, and a kind of copper rotor die casting dummy shaft system is provided.
Copper rotor die casting described in the utility model dummy shaft system, by axle, order is enclosed within adjustment packing ring, dummy shaft expansion set and the axes sleeve on the axle, places to treat the rotor steel disc on the dummy shaft expansion set, with clamping sleeve and the clamp nut composition for the treatment of that the rotor steel disc cooperates.Wherein: axle is the boss shape structure, and the middle part axle is that the cone profile matches with the inner cone of dummy shaft expansion set, and the other end is provided with the external screw thread that matches with axes sleeve.The dummy shaft expansion set is that the inner cone structure matches with the axle Outer Taper, and the dummy shaft expansion set is provided with axial pass trough.Axes sleeve is the internal and external threads structure, and its internal thread cooperates with axle, plays the tension axle and makes the adequately expanded effect of dummy shaft expansion set, and external screw thread matches with clamp nut, is used to lock clamping sleeve fixed rotor steel disc.Adjusting the quantity of packing ring and decide according to product and axle, dummy shaft expansion set, can be 1,2 or a plurality of.Axle, dummy shaft expansion set, clamping sleeve, axes sleeve need use high temperature resistant spring steel manufacturing.
Copper rotor die casting of the present utility model is bought by market with the parts of dummy shaft system or is prepared according to conventional method.
The utility model compared with prior art has simple in structure, easy to operate, can not produce foundry goods and damage, applied range has been avoided the generation of casting back waste product, can realize that same set of axle is used for different steel disc internal diameter size products, or the advantage of the product of the different core lengths of same internal diameter size.
Description of drawings:
Fig. 1 is a copper rotor die casting dummy shaft system generalized section.
Fig. 2 is the structural representation of dummy shaft expansion set 3 shown in Figure 1.
The specific embodiment:
A kind of copper rotor die casting described in the utility model dummy shaft system, by axle 1, order is enclosed within adjustment packing ring 2, dummy shaft expansion set 3 and axes sleeve 5 on the axle 1, places to treat rotor steel disc 7 on the dummy shaft expansion set 3, with clamping sleeve 4 and clamp nut 6 compositions for the treatment of that rotor steel disc 7 cooperates.Wherein: axle 1 is the boss shape structure, and the middle part axle is that the cone profile matches with the inner cone of dummy shaft expansion set 3, and the other end is provided with the external screw thread that matches with axes sleeve 5.Dummy shaft expansion set 3 matches with axle 1 Outer Taper for the inner cone structure, and dummy shaft expansion set 3 is provided with axial pass trough 8.Axes sleeve 5 is the internal and external threads structure, and its internal thread cooperates with axle 1, plays tension axle 1 and makes the 3 adequately expanded effects of dummy shaft expansion set, and external screw thread matches with clamp nut 6, is used to lock clamping sleeve 4 fixed rotor steel discs 7.Adjusting the quantity of packing ring 2 and decide according to product and axle 1, dummy shaft expansion set 3, can be 1,2 or a plurality of.Axes sleeve 5 adopts the high temperature resistant spring steel manufacturing of 65Mn, and axle 1, dummy shaft expansion set 3, clamping sleeve 4 adopt the 45# steel to make.
Copper rotor die casting of the present utility model is bought by market with the parts of dummy shaft system or is prepared according to conventional method.
Copper rotor die casting of the present utility model is conventional method with the method for operating of dummy shaft system.
Claims (4)
1. copper rotor die casting dummy shaft system, it is characterized in that the dummy shaft system is by axle (1), order is enclosed within adjustment packing ring (2), dummy shaft expansion set (3) and the axes sleeve (5) on the axle (1), place and treat rotor steel disc (7) on the dummy shaft expansion set (3), form with treating clamping sleeve (4) and clamp nut (6) that rotor steel disc (7) cooperates.
2. by the described a kind of copper rotor die casting of claim 1 dummy shaft system, it is characterized in that described axle (1) is the boss shape structure, the middle part axle matches with the inner cone of dummy shaft expansion set (3) for the cone profile, and the other end is provided with the external screw thread that matches with axes sleeve (5).
3. by the described a kind of copper rotor die casting of claim 1 dummy shaft system, it is characterized in that described dummy shaft expansion set (3) matches with axle (1) Outer Taper for the inner cone structure, expansion set is provided with axial pass trough (8).
4. by the described a kind of copper rotor die casting of claim 1 dummy shaft system, it is characterized in that described axes sleeve (5) is the internal and external threads structure, its internal thread cooperates with axle (1), and external screw thread matches with clamp nut (6), is used to lock clamping sleeve (4) fixed rotor steel disc (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020649685XU CN201969863U (en) | 2010-12-09 | 2010-12-09 | Dummy shaft system used for pressure die casting for copper rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020649685XU CN201969863U (en) | 2010-12-09 | 2010-12-09 | Dummy shaft system used for pressure die casting for copper rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201969863U true CN201969863U (en) | 2011-09-14 |
Family
ID=44574969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020649685XU Expired - Lifetime CN201969863U (en) | 2010-12-09 | 2010-12-09 | Dummy shaft system used for pressure die casting for copper rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201969863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780026A (en) * | 2014-01-06 | 2014-05-07 | 广东美芝精密制造有限公司 | Motor rotor die casting tooling and method and inner diameter protection device |
| CN114026767A (en) * | 2019-07-04 | 2022-02-08 | 舍弗勒技术股份两合公司 | Electric machine |
-
2010
- 2010-12-09 CN CN201020649685XU patent/CN201969863U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780026A (en) * | 2014-01-06 | 2014-05-07 | 广东美芝精密制造有限公司 | Motor rotor die casting tooling and method and inner diameter protection device |
| CN103780026B (en) * | 2014-01-06 | 2017-01-18 | 广东美芝精密制造有限公司 | Motor rotor die casting tooling and method and inner diameter protection device |
| CN114026767A (en) * | 2019-07-04 | 2022-02-08 | 舍弗勒技术股份两合公司 | Electric machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |