CN202978460U - Motor stator dove tail rib fixing structure - Google Patents
Motor stator dove tail rib fixing structure Download PDFInfo
- Publication number
- CN202978460U CN202978460U CN 201220643122 CN201220643122U CN202978460U CN 202978460 U CN202978460 U CN 202978460U CN 201220643122 CN201220643122 CN 201220643122 CN 201220643122 U CN201220643122 U CN 201220643122U CN 202978460 U CN202978460 U CN 202978460U
- Authority
- CN
- China
- Prior art keywords
- stator
- dove tail
- machine seat
- pin hole
- tail rib
- 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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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a motor stator dove tail rib fixing structure comprising a stator machine seat, stator punching sheets, a dove tail rib, a tension screw rod and a screw nut, wherein the stator punching sheets are corporately connected with the dove tail rib through a swallow tail groove, the tension screw rod is sleeved on the stator machine seat, an end of the stator machine seat is provided with a stator pressure ring in sleeving connection with the tension screw rod, the dove tail rib and the stator machine seat are correspondingly provided with a pin hole, and a cylinder pin is corporately arranged in the pin hole. The fixing structure can ensure pressure between sheets of the stator punching sheets to satisfy design requirement through the tension screw rod, the dove tail rib and the stator machine seat are provided with the pin hole, the assembling structure of transition cooperation of the pin hole and the cylinder pin is employed, so the dove tail rib and the stator machine seat become a whole body, stator received tangential force generated by sudden short circuit torque and stator received radial force generated by magnetic pulling force are transmitted to the whole stator machine seat through the cylinder pin, so the structure can satisfy intensity requirement of the whole iron core.
Description
Technical field
The utility model belongs to technical field of motors, specifically a kind of motor stator dove tail muscle fixed structure.
Background technology
The large-size machine stator core fills presses whole dove tail muscle structure being arranged and making up dove tail muscle structure of usually adopting, for the AC/AC (alternating current) variable-frequency steel-rolling motor, because torque is larger, and frequent the change fast turns to, effect when making stator bear the radial load that tangential force that the suddenly-applied short circuit torque produces and magnetic pull produce, therefore, higher to the stator core requirement of strength, and combination dove tail muscle structure is by sunk screw, dove tail muscle to be fixed on square steel, exists the defective of undercapacity.Although whole dove tail muscle structure intensity is better, higher to positioning accuracy request, the welding difficulty is large.
The utility model content
The utility model is to provide a kind of stator core requirement of strength that can satisfy for the prior art deficiency, and the little motor stator dove tail muscle fixed structure of difficulty of processing.
Realize that the technical scheme that the purpose of this utility model is taked is: this stator dove tail muscle is fixed
Structure comprises out frame, stator punching, dove tail muscle, stretching screw and nut, wherein, stator punching is connected by dovetail groove and dove tail muscle, stretching screw is installed on out frame, be provided with stretching screw at an end of out frame and install the stator pressing ring that is connected, on dove tail muscle and out frame, correspondence is provided with column pin hole, is provided with the straight pin that coordinates with it in this column pin hole.
Described straight pin and column pin hole interference fits.
The motor stator dove tail muscle fixed structure of making according to such scheme, pass through stretching screw, guaranteed that the pole sheet pressure between stator punching meets design requirement, and adopt by dove tail muscle and out frame align reaming pin-and-hole, by with the structure of steel alloy straight pin interference fits assembling, make dove tail muscle become an integral body with out frame, out frame bears the tangential force of suddenly-applied short circuit torque generation and the radial load that magnetic pull produces, can be delivered to whole out frame by straight pin, therefore, this structure can satisfy the requirement of strength of whole iron core.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cross sectional view of B-B in Fig. 1.
Embodiment
Referring to Fig. 1, Fig. 2, a kind of stator dove tail muscle fixed structure of the present utility model, formed by out frame 1, stator punching 2, stretching screw 3, dove tail muscle 4, straight pin 5, nut 6, stator pressing ring 7, wherein, stator punching 2 is connected by dovetail groove and dove tail muscle 4, stretching screw 3 is installed on out frame 1, be provided with stretching screw 3 at an end of out frame 1 and install the stator pressing ring 7 that is connected, on dove tail muscle 4 and out frame 1, correspondence is provided with column pin hole, be provided with the straight pin 5 that coordinates with it in this column pin hole, this straight pin 5 and column pin hole interference fits.In this structure, stretching screw 3 does not coordinate with stator punching 2, but by with out frame 1, stretching screw 3, nut 6 and stator pressing ring 7, stator punching 2 being compressed, can play the effect that increases the iron core axial pressing force.
In the utility model, dress unshakable in one's determination is pressed and is adopted stretching screw 3 to add the structure of combination dove tail muscle 4, wherein stretching screw 3 does not coordinate with stator punching 2, only work to increase the axial pressing force of iron core, the fixed form of dove tail muscle 4 and out frame 1 adopts by dove tail muscle 4 and out frame 1 align reaming pin-and-hole and straight pin 5 interference fits and assembles.Adopt this structure, although stator core is longer, but by stretching screw 3, the pole sheet pressure that has guaranteed stator punching 2 meets design requirement, and adopt by dove tail muscle 4 and out frame 1 align reaming pin-and-hole, by adopting the interference fits assembling with steel alloy straight pin 5, make dove tail muscle 4 with 1 one-tenth of out frame an integral body, stator bears the tangential force of suddenly-applied short circuit torque generation and the radial load that magnetic pull produces, can be delivered to whole out frame 1 by straight pin 5, therefore, can satisfy the requirement of strength of whole iron core.
Claims (2)
1. a motor stator dove tail muscle fixed structure comprises out frame, stator punching, dove tail muscle, stretching screw and nut, it is characterized in that: stator punching coordinates with dove tail muscle by dovetail groove and connects
Connect, stretching screw is installed on out frame, is provided with stretching screw at an end of out frame and installs the stator pressing ring that is connected, and on dove tail muscle and out frame, correspondence is provided with column pin hole, is provided with the straight pin that coordinates with it in this column pin hole.
2. a kind of motor stator dove tail muscle fixed structure according to claim 1, is characterized in that: described straight pin and column pin hole interference fits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220643122 CN202978460U (en) | 2012-11-29 | 2012-11-29 | Motor stator dove tail rib fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220643122 CN202978460U (en) | 2012-11-29 | 2012-11-29 | Motor stator dove tail rib fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978460U true CN202978460U (en) | 2013-06-05 |
Family
ID=48519485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220643122 Expired - Fee Related CN202978460U (en) | 2012-11-29 | 2012-11-29 | Motor stator dove tail rib fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978460U (en) |
-
2012
- 2012-11-29 CN CN 201220643122 patent/CN202978460U/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: 20151129 |