CN103427516A - Anti-loose structure for large-sized motor rotator - Google Patents
Anti-loose structure for large-sized motor rotator Download PDFInfo
- Publication number
- CN103427516A CN103427516A CN2013103195168A CN201310319516A CN103427516A CN 103427516 A CN103427516 A CN 103427516A CN 2013103195168 A CN2013103195168 A CN 2013103195168A CN 201310319516 A CN201310319516 A CN 201310319516A CN 103427516 A CN103427516 A CN 103427516A
- Authority
- CN
- China
- Prior art keywords
- ring
- rotor
- end ring
- loose structure
- conducting bar
- 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.)
- Pending
Links
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses an anti-loose structure for a large-sized high speed (more than 1500 revolutions per minute) motor rotor. According to the principle, a high intensity alloy steel protective ring which is designed is sleeved at the outer edge of a rotor end ring in a thermal mode; the outer end of the protective ring achieves axial positioning through a balanced ring which is sleeved on a shaft in a thermal mode and prevents radial displacement of the protective ring through a spigot of the balanced ring; a taper key (6) is embedded at the groove bottom to be tightly wedged after a rotor conducting bar (5) penetrating into a rotor core (8) and the rotor conducting bar is firmly welded to prevent the rotor conducting bar (5) from generating radial looseness inside a groove; certain gaps are reserved between the end ring (4) and a rotor pressing ring (7) to be used for ventilation and heat dissipation. The anti-loose structure for the large-sized high speed motor rotor has the advantages of preventing the conducting bar end portion and the end ring from performing radial deformation caused by centrifugal force, preventing the conducting bar and the end ring from performing axial displacement caused by conducting bar looseness and avoiding breakage bar, open weld and end ring deformation accidents from happening.
Description
Technical field
The present invention relates to a kind of rotor anti-loose structure, especially a kind of large high-speed machine prevents that rotor bar from becoming flexible and the new construction of the loosening distortion of end ring, belongs to mechanical design field.
Background technology
The rotor of existing large high-speed (more than 1500 rev/mins) motors (more than seat No. H710) becomes flexible the reliable structure of distortion owing to effectively not preventing that rotor bar is loosening with end ring, often occur that rotor bar becomes flexible and the situation of the loosening distortion of end ring, cause disconnected bar, snap the generation with end ring radial deformation and the axially displaced accident of end ring, the loosening of sliver can cause disconnected bar, damage and the electric machine chamber-sweeping that can cause rotor, also can cause the wearing and tearing of stator coil end and the serious accident that is difficult to extract out rotor when the end ring radial deformation is serious, cause whole motor almost to be scrapped.
Summary of the invention
Summary of the invention
The present invention designs a kind of large high-speed machine rotor anti-loose structure, not only can prevent that sliver is loosening but also can prevent end ring distortion and loosening brand-new rotor anti-loose structure, principle is to design a kind of high-strength alloy 18 N steel guard ring, hot jacket is on the outer rim of rotor end ring, and retaining ring itself is to realize axial location by the gimbal of hot jacket on axle.Rotor bar is squeezed into wedge key wedging firm welding at bottom land after penetrating rotor core, prevents that rotor bar from producing in groove radially loosening.
The invention has the beneficial effects as follows: both can prevent sliver end that centrifugal force causes and the radial deformation of end ring, also can prevent the loosening sliver caused of sliver and the axial displacement of end ring, avoid resolving bar, snap the generation with the end ring deformation accident.
The accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of large high-speed machine rotor anti-loose structure of the present invention.
Wherein: 1 rotating shaft, 2 gimbals, 3 retaining rings, 4 end ring, 5 rotor bars, 6 bottom land wedge keys, 7 rotor pressing rings, 8 rotor cores.
Accompanying drawing 2 is axial view of gimbal in the present invention.
Wherein: 4 circular arc openings are axial ventilation holes.
Embodiment
As shown in Figure 1, a kind of specific embodiment of large high-speed machine rotor anti-loose structure of the present invention, comprise rotating shaft (1), gimbal (2), retaining ring (3), end ring (4), rotor bar (5), bottom land wedge key (6), rotor pressing ring (7), rotor core (8).Wherein rotor bar (5) is squeezed into (6) wedging of bottom land wedge key firm welding at bottom land after penetrating rotor core (8), prevents that rotor bar (5) from producing in groove radially loosening.
End ring (4) welds afterwards after the end ring outer rim is worked into certain size with rotor bar (5), high-strength alloy 18 N steel guard ring (3) hot jacket is upper to end ring (4), in order to the radial deformation that prevents that the end of end ring and sliver causes due to centrifugal force when the motor High Rotation Speed.Outer end at retaining ring is upper in rotating shaft (1) by gimbal (2) hot jacket near retaining ring, prevents that end ring (4) and retaining ring (3) from producing axial play, also can prevent the loosening sliver caused of sliver and the axial displacement of end ring; Utilize seam on gimbal can also prevent the radial displacement of retaining ring.Leave certain gap in order to ventilation and heat between end ring (4) and rotor pressing ring (7).
Claims (4)
1. a large high-speed machine rotor anti-loose structure, comprise rotating shaft (1), gimbal (2), retaining ring (3), end ring (4), rotor bar (5), bottom land wedge key (6), rotor pressing ring (7), rotor core (8), it is characterized in that squeezing into (6) wedging of bottom land wedge key firm welding at bottom land after rotor bar (5) penetrates rotor core (8), prevent that rotor bar (5) from producing in groove radially loosening.
2. a kind of large high-speed machine rotor anti-loose structure according to claim 1, it is characterized in that end ring (4) and rotor bar (5) weld afterwards after the outer rim of end ring is worked into certain size, high-strength alloy 18 N steel guard ring (3) hot jacket is upper to end ring (4), in order to the radial deformation that prevents that the end of end ring and sliver causes due to centrifugal force when the motor High Rotation Speed.
3. a kind of large high-speed machine rotor anti-loose structure according to claim 1, it is characterized in that in the outer end of retaining ring near retaining ring by gimbal (2) hot jacket in rotating shaft (1), prevent that end ring (4) and retaining ring (3) from producing axial play, also can prevent the loosening sliver caused of sliver and the axial displacement of end ring, utilize seam on gimbal can also prevent the radial displacement of retaining ring.
4. a kind of large high-speed machine rotor anti-loose structure according to claim 1, is characterized in that leaving certain gap in order to ventilation and heat between end ring (4) and rotor pressing ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103195168A CN103427516A (en) | 2013-07-27 | 2013-07-27 | Anti-loose structure for large-sized motor rotator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103195168A CN103427516A (en) | 2013-07-27 | 2013-07-27 | Anti-loose structure for large-sized motor rotator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103427516A true CN103427516A (en) | 2013-12-04 |
Family
ID=49651865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103195168A Pending CN103427516A (en) | 2013-07-27 | 2013-07-27 | Anti-loose structure for large-sized motor rotator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103427516A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956840A (en) * | 2014-04-14 | 2014-07-30 | 宁波狮球通风机电有限公司 | Rotor |
| CN106505770A (en) * | 2016-12-21 | 2017-03-15 | 上海电气集团上海电机厂有限公司 | A kind of retaining ring structure of ultrahigh speed asynchronous machine |
| CN110492633A (en) * | 2019-08-24 | 2019-11-22 | 中船重工电机科技股份有限公司 | The high speed interconnected cage motor rotor structure and its assembly method of centrifugal force resistant |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723549A (en) * | 1993-06-30 | 1995-01-24 | Fanuc Ltd | Rotor structure for high speed motor |
| CN101944786A (en) * | 2010-10-15 | 2011-01-12 | 无锡哈电电机有限公司 | Rotor iron core structure of bipolar motor |
| CN202798208U (en) * | 2012-09-19 | 2013-03-13 | 西安盾安电气有限公司 | Motor rotor expansion joint structure |
-
2013
- 2013-07-27 CN CN2013103195168A patent/CN103427516A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723549A (en) * | 1993-06-30 | 1995-01-24 | Fanuc Ltd | Rotor structure for high speed motor |
| CN101944786A (en) * | 2010-10-15 | 2011-01-12 | 无锡哈电电机有限公司 | Rotor iron core structure of bipolar motor |
| CN202798208U (en) * | 2012-09-19 | 2013-03-13 | 西安盾安电气有限公司 | Motor rotor expansion joint structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956840A (en) * | 2014-04-14 | 2014-07-30 | 宁波狮球通风机电有限公司 | Rotor |
| CN103956840B (en) * | 2014-04-14 | 2016-04-20 | 宁波狮球通风机电有限公司 | Rotor |
| CN106505770A (en) * | 2016-12-21 | 2017-03-15 | 上海电气集团上海电机厂有限公司 | A kind of retaining ring structure of ultrahigh speed asynchronous machine |
| CN110492633A (en) * | 2019-08-24 | 2019-11-22 | 中船重工电机科技股份有限公司 | The high speed interconnected cage motor rotor structure and its assembly method of centrifugal force resistant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6161796B2 (en) | Vertical motor rotor and vertical motor | |
| US9729032B2 (en) | Limiting radial expansion in rotor balancing | |
| CN103427516A (en) | Anti-loose structure for large-sized motor rotator | |
| US8946969B2 (en) | Rotor of an asynchronous machine with retaining element | |
| US10651712B2 (en) | Rotor for an electrical machine | |
| JP2016032340A (en) | Rotor of dynamo-electric machine | |
| CN103414269A (en) | Anti-looseness structure of high-speed motor rotor | |
| JP2015061459A (en) | Induction motor and manufacturing method therefor | |
| US10236733B2 (en) | Magnetic mass for rotor, rotor manufacturing process and corresponding electrical machine | |
| CN202798208U (en) | Motor rotor expansion joint structure | |
| CN104047964A (en) | Water-cooled bearing seat of fine crusher | |
| JP2018516526A (en) | STATOR RING FOR GENERATOR, GENERATOR AND WIND POWER GENERATOR HAVING THE GENERATOR | |
| CN215870950U (en) | Large-scale high-speed asynchronous motor rotor | |
| CN109888969A (en) | A kind of rotor based on hollow shaft structure | |
| CN101944786A (en) | Rotor iron core structure of bipolar motor | |
| CN204030902U (en) | A kind of rotor end ring structure for double cage motor or deep slot motor | |
| RU2538759C2 (en) | Rotating electrical machine, namely asynchronous electrical machine of double-way feed in power range of 20 mv a to 500 mv a and higher | |
| CN102522838A (en) | Tangential magnetic steel permanent magnet motor rotor | |
| CN102412643A (en) | Milled groove structure for high-speed winding motor shaft | |
| JP5752569B2 (en) | Rotating electric machine | |
| CN102593986A (en) | Rotor of line-start permanent magnetic synchronous motor | |
| CN201523268U (en) | Press-loading structure of armature of direct current motor | |
| CN204835752U (en) | Motor rotor copper bar end connection structure | |
| CN109586498A (en) | Electro spindle and motor | |
| CN104167890B (en) | A kind of rotor end ring structure for double cage motor or deep slot motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131204 |
|
| RJ01 | Rejection of invention patent application after publication |