CN202690715U - Motor shaft - Google Patents
Motor shaft Download PDFInfo
- Publication number
- CN202690715U CN202690715U CN 201220364474 CN201220364474U CN202690715U CN 202690715 U CN202690715 U CN 202690715U CN 201220364474 CN201220364474 CN 201220364474 CN 201220364474 U CN201220364474 U CN 201220364474U CN 202690715 U CN202690715 U CN 202690715U
- Authority
- CN
- China
- Prior art keywords
- shaft
- axle
- motor
- motor shaft
- utility
- 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 motor shaft, comprising a rear shaft and a front shaft which is coaxially welded at the front end of the rear shaft, wherein a shaft ring extends outwards at the middle part of the rear shaft along a radial direction; the shaft ring is coaxial with the rear shaft; the shaft ring and a motor rotor are in interference fit, and grooves are arranged inwards at two ends of the shaft ring. The concentricity when the motor shaft disclosed by the utility model and the motor rotor are installed is good; the stability of a drilling machine is maintained; the front shaft adopts a stainless steel material, and the rear shaft adopts a carbon steel material. Therefore, normal use of the motor is ensured, and the motor shaft also can be applied to a device working in a corrosion environment.
Description
Technical field
The utility model relates to a kind of mechanical power source, is specifically related to a kind of motor shaft.
Background technique
The Placement of existing motor shaft and rotor often in the following way, one-body molded on the motor shaft have an end cap, this motor shaft passes rotor, and end cap and rotor be bolted to connection, by the internal diameter of the rotor diameter of axle partly less than rotor, this mode easily causes the situation of decentraction, and bolt looseness also can affect the normal use of motor.And existing motor shaft all adopts the carbon steel of magnetic conduction to make, and carbon steel corrosion resistance extreme difference is therefore can not directly be applied on the equipment of corrosive environment work.
The model utility content
The technical problem that (one) will solve
The technical problems to be solved in the utility model provides a kind of motor shaft that can keep motor stabilizing and can adapt to corrosive environment.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of motor shaft, it comprises that rear axle and coaxial welding are at the front axle of rear axle front end, the rear axle middle part has extended radially outward the axle collar, this axle collar is coaxial with rear axle, this axle collar and rotor interference fit, the two ends of the axle collar all inwardly offer groove.
Wherein, the material of rear axle is carbon steel, and the material of front axle is stainless steel.
(3) beneficial effect
Compared with prior art, the good concentricity when motor shaft of the present utility model and rotor are installed has been kept the stability of rig; And front axle employing stainless steel material, rear axle adopts carbon steel material, has both guaranteed the normal use of motor, can be applied to again on the equipment in the corrosive environment work.
Description of drawings
Fig. 1 is the structural representation of the utility model motor shaft.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but can not be used for limiting scope of the present utility model.
As shown in Figure 1, this motor shaft comprises rear axle 1 and coaxial welding at the front axle 2 of rear axle 1 front end, and rear axle 1 middle part has extended radially outward the axle collar 11, and this axle collar 11 is coaxial with rear axle 1, the axle collar 11 and rotor interference fit.The two ends of the axle collar 11 all inwardly offer groove 12, when making motor shaft guarantee enough intensity, have alleviated whole weight.
The material of rear axle 1 is carbon steel, and the material of front axle 2 is stainless steel.
Good concentricity when motor shaft of the present utility model and rotor are installed has been kept the stability of rig; And front axle employing stainless steel material, rear axle adopts carbon steel material, has both guaranteed the normal use of motor, can be applied to again on the equipment in the corrosive environment work.
It below only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. motor shaft, it is characterized in that: this main shaft comprises that rear axle (1) and coaxial welding are at the front axle (2) of described rear axle (1) front end, described rear axle (1) middle part has extended radially outward the axle collar (11), the described axle collar (11) is coaxial with described rear axle (1), the described axle collar (11) and rotor interference fit, the two ends of the described axle collar (11) all inwardly offer groove (12).
2. motor shaft according to claim 1, it is characterized in that: the material of described rear axle (1) is carbon steel, the material of described front axle (2) is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364474 CN202690715U (en) | 2012-07-25 | 2012-07-25 | Motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364474 CN202690715U (en) | 2012-07-25 | 2012-07-25 | Motor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690715U true CN202690715U (en) | 2013-01-23 |
Family
ID=47546341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220364474 Expired - Fee Related CN202690715U (en) | 2012-07-25 | 2012-07-25 | Motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595211A (en) * | 2013-11-19 | 2014-02-19 | 江苏航天动力机电有限公司 | High-speed permanent magnet synchronous motor three-section rotary shaft structure |
-
2012
- 2012-07-25 CN CN 201220364474 patent/CN202690715U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595211A (en) * | 2013-11-19 | 2014-02-19 | 江苏航天动力机电有限公司 | High-speed permanent magnet synchronous motor three-section rotary shaft structure |
| CN103595211B (en) * | 2013-11-19 | 2016-08-17 | 江苏航天动力机电有限公司 | Three sections of pivot structures of high-speed permanent magnetic synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130725 |