CN1601864A - Rotating axle of induction motor - Google Patents
Rotating axle of induction motor Download PDFInfo
- Publication number
- CN1601864A CN1601864A CN 03144342 CN03144342A CN1601864A CN 1601864 A CN1601864 A CN 1601864A CN 03144342 CN03144342 CN 03144342 CN 03144342 A CN03144342 A CN 03144342A CN 1601864 A CN1601864 A CN 1601864A
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- China
- Prior art keywords
- rotation axis
- bearing
- rotor core
- rotating shaft
- axis ontology
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Abstract
Rotation axis includes following parts: body of rotation axis in round bar shape, the body of rotation axis together with axes of rotor iron core as a integral part is connected to rotor iron core; bearing blocking device is extruded out body of rotation axis along radius direction, forming a integrated body with the body of rotation axis in order to prevent bearings from closing each other; bearings along length direction of the body of rotation axis are combined on two sides of the iron core of rotor. Advantages are: brake ring not utilized for fixing position of bearings so as to reduce quantity of parts and preventing bearings from not suitable position.
Description
Technical field
The present invention relates to a kind of rotating shaft of induction motor.
Background technology
Fig. 1 is the schematic diagram of existing induction electric machine rotor, and Fig. 2 is the exploded perspective schematic diagram of bearing portions shown in Figure 1.As shown in the figure, the rotor of induction motor comprises rotor core (rotor core) (11) and rotating shaft (21).Do not have the internal interval certain space of the stator of demonstration that above-mentioned rotor core (11) is set in the drawings, and rotor core (11) can rotate; Axle center along rotor core (11) is combined with rotating shaft (21), and rotating shaft (21) rotates with rotor core (11).
Rotor core (11) comprises axis hole (13a), silicon steel plate (12), stub (15), binding ring (end ring) (17).Above-mentioned axis hole (13a) connects in the central authorities of rotor core (11) and forms, in rotating shaft (21) is housed; Form several flutings (slot) around (13b), insulation and stacked several silicon steel plates (12); Inner several stubs (15) that form of silicon steel plate (12) fluting (13b); The two ends of stacked silicon steel plate (12) have binding ring (17), and binding ring (17) is integrally formed with stub (15).Each outer surface of binding ring (17) is outstanding along axis direction, and along circumferencial direction several blades (blade) (18) that are provided with spaced a certain distance.
In addition, along the length direction of rotating shaft (21), the both sides of rotor core (11) are combined with pair of bearings (19), bearing (19) supporting rotating shaft.Be combined with braking ring (23) between rotor core (11) and the bearing (19), braking ring (23) makes bearing (19) keep certain spacing.
Braking ring (23) is made by elastomeric material, and a side opening.Rotating shaft (21) is gone up and is formed link slot (22), can insert in conjunction with braking ring (23).
But there is following shortcoming in the rotor of aforesaid existing induction motor: in order to keep the spacing between the bearing, rotating shaft (21) is gone up the link slot (22) that forms depression along radial direction, and this link slot (22) is gone up and connected braking ring (23).Thus, increase amount of parts, made the assembling procedure complexity, caused cost to improve.Sometimes,, easily make braking ring (23) break away from rotating shaft (21), make the position of bearing (19) not good owing to fully do not insert braking ring (23).
Summary of the invention
In order to overcome the above-mentioned shortcoming that existing induction electric machine rotor exists, the invention provides a kind of rotating shaft of induction motor, the braking ring that it does not use the rigid bearing position has reduced amount of parts, and prevents that the position of bearing is not good.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of rotating shaft of induction motor comprises rotation axis ontology; It is characterized in that described rotation axis ontology is the pole shape, be connected on the rotor core with the axle center one of rotor core; Being provided with the bearing locking device, is outstanding at the radial direction of rotation axis ontology, integrally formed with rotation axis ontology, prevents that bearing is approaching mutually, and described bearing is combined in the both sides of rotor core respectively along the length direction of rotation axis ontology.
The rotating shaft of aforesaid induction motor, its middle (center) bearing locking device is handled the rotation axis ontology calking and form.
The rotating shaft of aforesaid induction motor, a side of its middle (center) bearing locking device are formed with the radial direction depression along rotation axis ontology, around the groove of whole circumference direction.
The present invention does not use the braking ring of rigid bearing position, has reduced amount of parts, and prevents that the position of bearing is not good.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram of existing induction electric machine rotor.
Fig. 2 is the exploded perspective schematic diagram of bearing portions shown in Figure 1.
Fig. 3 is the user mode schematic diagram of rotating shaft of the induction motor of one embodiment of the invention.
Fig. 4 is the schematic diagram of the bearing brake (bearing stopper) of rotating shaft shown in Figure 3.
Fig. 5 is the floor map of bearing brake shown in Figure 4.
Fig. 6 is the cutaway view along the VI-VI line shown in Figure 5.
Fig. 7 is the schematic diagram of bearing brake shown in Figure 3.
The number in the figure explanation:
11: rotor core 12: silicon steel plate
15: stub 17: binding ring (end ring)
32: rotation axis ontology 34: bearing locking device (bearing stopper)
36: groove (groove)
Embodiment
As Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, induction motor of the present invention comprises rotor core (11), stub (15), locking (end ring) (17), rotating shaft (31).Above-mentioned rotor core (11) is by several silicon steel plates (12) stacked formation of insulating, and silicon steel plate (12) has axis hole (13a) and several flutings (13b), the inner stub (15) that forms of each fluting (13b) of rotor core (11); The two ends of rotor core (11) have binding ring (17) respectively, and the axle center of rotor core (11) is combined with the rotating shaft (31) of induction motor of the present invention.
The rotating shaft of induction motor of the present invention (31) comprises rotation axis ontology (32) and bearing locking device (stopper) (34), and above-mentioned rotation axis ontology (32) inserts rotor core (11) along the axle center and rotor core (11) one of rotor core (11); Bearing locking device (34) is integrally formed with rotation axis ontology (32), and bearing locking device (34) makes bearing (19) keep a determining deviation, and described bearing (19) is arranged on the both sides of rotor core (11) along the axis direction of rotation axis ontology (32).
Rotation axis ontology (32) forms has the pole shape of certain diameter; The both sides of rotor core (11) form bearing locking device (34) respectively, and bearing locking device (34) makes bearing (19) keep a determining deviation.
Bearing locking device (34) forms along radial direction is outstanding in the periphery of rotation axis ontology (32), and two bearing locking devices (34) form corresponding a pair of along diametric(al).Each bearing locking device (34) inboard forms respectively along the radial direction of rotation axis ontology (32) depression, and the groove (36) that prolongs along peripheral direction.Groove (36) makes the section of bearing locking device (34) form on the position of determining relatively.
As shown in Figure 7, above-mentioned bearing locking device (34) by having " recessed " font top stamping machine (punch) (41) and (45) calking (calking) device of lower mould (die) form.The diameter that top stamping machine (41) has a relative rotation axi body (32) apart from one another by the pair of straight angle sections add pressure surface (42,46).
By said structure, form groove (36) respectively in the both sides of rotation axis ontology (32), make rotation axis ontology (32) to insert and to be combined on the axle center of rotor core (11).Then, the rotation axis ontology that combines rotor core (11) (32) is placed on the lower mould (45), move down top stamping machine (41), make top stamping machine (41) near lower mould (45), a part is outstanding laterally along radial direction respectively between top stamping machine (41) and lower mould (45) in rotation axis ontology (32) peripheral surface, forms bearing locking device (34) after the plastic deformation.After bearing locking device (34) formed, the both sides of rotation axis ontology (32) were inserted bearing (19) and are got final product.
The effect of invention
The rotating shaft of aforesaid induction conductivity of the present invention has following structure: at rotor core Insert and be combined with the rotation axis ontology of pole shape on the axle center, and rotation axis ontology can with rotor iron The rotation of core one; Length direction along rotation axis ontology keeps at a certain distance away outside rotation axis ontology The face that encloses is along the outstanding bearing blocking device that forms of radial direction. The bearing blocking device becomes one with rotation axis ontology Body. The rotating shaft of induction conductivity of the present invention is compared with the rotating shaft of existing induction conductivity, have as Lower characteristics, the rotating shaft of existing induction conductivity are used independent in order to make bearing keep certain spacing Brake hoop. Because the present invention does not use independently brake hoop, amount of parts and simplification group have been reduced The dress operation, thus make cost, and prevent because brake hoop that the assembling of the mistake of brake hoop causes The not good situation of disengaging and position of bearings.
Claims (3)
1, a kind of rotating shaft of induction motor comprises rotation axis ontology; It is characterized in that,
Described rotation axis ontology is the pole shape, is connected on the rotor core with the axle center one of rotor core;
Being provided with the bearing locking device, is outstanding at the radial direction of rotation axis ontology, integrally formed with rotation axis ontology, prevents that bearing is approaching mutually, and described bearing is combined in the both sides of rotor core respectively along the length direction of rotation axis ontology.
2, the rotating shaft of induction motor according to claim 1 is characterized in that described bearing locking device handles the rotation axis ontology calking and form.
3, the rotating shaft of induction motor according to claim 1 and 2, a side that it is characterized in that described bearing locking device are formed with the radial direction depression along rotation axis ontology, around the groove of whole circumference direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144342 CN1601864A (en) | 2003-09-25 | 2003-09-25 | Rotating axle of induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144342 CN1601864A (en) | 2003-09-25 | 2003-09-25 | Rotating axle of induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1601864A true CN1601864A (en) | 2005-03-30 |
Family
ID=34659504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03144342 Pending CN1601864A (en) | 2003-09-25 | 2003-09-25 | Rotating axle of induction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1601864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016505A (en) * | 2012-11-27 | 2013-04-03 | 大连天元电机股份有限公司 | Large doubly-fed asynchronous generator rotary shaft with overlong shaft distance |
-
2003
- 2003-09-25 CN CN 03144342 patent/CN1601864A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016505A (en) * | 2012-11-27 | 2013-04-03 | 大连天元电机股份有限公司 | Large doubly-fed asynchronous generator rotary shaft with overlong shaft distance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |