CN102355106A - Novel starting damping structure of synchronous motor - Google Patents
Novel starting damping structure of synchronous motor Download PDFInfo
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- CN102355106A CN102355106A CN2011102782654A CN201110278265A CN102355106A CN 102355106 A CN102355106 A CN 102355106A CN 2011102782654 A CN2011102782654 A CN 2011102782654A CN 201110278265 A CN201110278265 A CN 201110278265A CN 102355106 A CN102355106 A CN 102355106A
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- damping
- ring
- rotor slot
- slot wedge
- damping ring
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Abstract
The invention discloses a novel starting damping structure of a synchronous motor. The novel starting damping structure comprises rotor slot wedges, a damping ring and a shroud ring, and is characterized in that: damping teeth at one end of the damping ring contact the inner surfaces of the rotor slot wedges; the other end of the damping ring contacts the inner circle surface of the shroud ring; the end, contacting the inner surfaces of the rotor slot wedges, of the damping ring is provided with an elastic device which contacts the outer surfaces of insulated filler strips; the inner circle surface of the shroud ring is a conical surface; the rotor slot wedges adopt integrated slot wedges, and are made from copper-nickel alloys; the damping ring adopts a copper-silver alloy; and the surface of the damping ring is provided with a silver coating. The novel starting damping structure has the advantages of high contact performance and electrical conductivity, strong strength and high-speed running safety and reliability.
Description
Technical field
The present invention relates to the synchronous motor technical field, relate in particular to a kind of novel starting damping structure of synchronous motor.
Background technology
Damping structure mainly is divided into two kinds of structures at present: the one, be used for generator, and damping structure is made up of the damping tooth and the end damping ring that insert the rotor slot wedge bottom, to improve the dynamic stability of generator operation; The damping structure of generator mainly is during in normal operation, by centrifugal force rotor slot wedge closely to be contacted with the damping tooth, the formation damping circuit at generator; Improve the dynamic stability of generator operation; And under static and low speed state, the damping tooth contacts defective tightness with rotor slot wedge, thereby makes loose contact between rotor slot wedge and the amortisseur bar; The electric conductivity of whole damping structure weakens, and this structure can't satisfy the motor starting needs.The 2nd, synchronous motor, damping structure by insert in the main pole pole shoe damper rod be connected damping ring with it and form the formation cage-shaped structure; Normally operation under the slow-speed of revolution of synchronous motor, amortisseur bar and damping ring receive very big centrifugal action when running up, thereby cause amortisseur bar and damping ring to deform, and influence the operate as normal of motor.Therefore prior art exists: loose contact between rotor slot wedge and the amortisseur bar, and cause amortisseur bar and damping ring with the defective that deforms.
Summary of the invention
The object of the invention is exactly in order to solve the damping structure poor electric conductivity that generator damping structure rotor slot wedge and amortisseur bar loose contact when the slow-speed of revolution cause, and the problem of motor amortisseur bar and damping ring easy deformation when running up: the novel starting damping structure that a kind of synchronous motor is provided; Have contact performance and electric conductivity is good, intensity is high, safe and reliable advantage runs up.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
The novel starting damping structure of synchronous motor comprises rotor slot wedge, damping ring; Retaining ring; The insulation filler strip, the damping tooth on said damping ring one end contacts with the rotor slot wedge inner surface, and the other end of said damping ring contacts with the inner headed face of retaining ring; The end that said damping ring contacts with the rotor slot wedge inner surface is provided with elastic device, and said elastic device contacts with the outer surface of insulation filler strip; The inner headed face of said retaining ring is a taper seat.
Said rotor slot wedge adopts whole slot wedge, and the material of said slot wedge adopts corronil.
Said damping ring adopts Kufil, and said damping ring surface is provided with silver coating.
Beneficial effect of the present invention: because the novel starting damping structure of synchronous motor of the present invention comprises rotor slot wedge, damping ring; Retaining ring; Damping tooth on said damping ring one end contacts with the rotor slot wedge inner surface, and the other end of said damping ring contacts with the inner headed face of retaining ring, and the end that said damping ring contacts with the rotor slot wedge inner surface is provided with elastic device; Said elastic device contacts with the outer surface of insulation filler strip, and the interior circle of retaining ring is the conical surface.During assembling, the rotor tip of synchronous motor is placed damping ring, and the outside, end of damping ring is compressed by retaining ring, and the interior circle of retaining ring is the conical surface, can prevent effectively that damping ring from moving; Damping ring is connected with rotor slot wedge through the damping tooth above it, and rotor slot wedge adopts the material of whole slot wedge, slot wedge to adopt corronil, and electric conductivity is good, mechanical strength is high, and normal operation guarantees to run up; The material of damping ring adopts Kufil; The damping ring surface is carried out silver-plated processing, is formed silver coating; Material has the advantages that creep-resistant property is good, electric conductivity is good, has reduced the contact resistance between rotor slot wedge and the damping ring, can satisfy the requirement of the frequent start-stop of motor.Damping tooth inboard on the damping ring is provided with spring assembly, and the elastic force of spring assembly has increased the contact force between the damping tooth of rotor slot wedge and damping ring, thus make two contact-making surfaces more closely, contact well reduced resistance, strengthened electric conductivity.Therefore have following beneficial effect:
1) conduct electricity very well, mechanical strength is high;
2) reliability is high during the high rotation speed operation of motor.
Description of drawings
Fig. 1 is the structural representation of the novel starting damping structure of synchronous motor of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view;
The expanded view of Fig. 3 damping ring.
Among the figure, 1. rotor slot wedge, 2. damping ring, 3. insulation filler strip, 4. retaining ring, 5. elastic device.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
In Fig. 1, Fig. 2, Fig. 3, among the figure, 1. rotor slot wedge, 2. damping ring, 3. insulation filler strip, 4. retaining ring, 5. elastic device.The novel starting damping structure of synchronous motor; Comprise rotor slot wedge 1, damping ring 2, retaining ring 4; Damping tooth on said damping ring 2 one ends contacts with rotor slot wedge 1 inner surface; The other end of said damping ring 2 contacts with the inner headed face of retaining ring 4, and said damping ring 2 is provided with elastic device 5 with the end that rotor slot wedge 1 inner surface contacts, and said elastic device 5 contacts with the outer surface of insulation filler strip 3; The inner headed face of said retaining ring 4 is a taper seat.Said rotor slot wedge 1 adopts whole slot wedge, and the material of said slot wedge adopts corronil.Said damping ring 2 adopts Kufil, and said damping ring 2 surfaces are provided with silver coating.
Though the above-mentioned accompanying drawing that combines is described the embodiment of invention; But be not restriction to protection range of the present invention; One of ordinary skill in the art should be understood that; On the basis of technical scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (3)
1. the novel starting damping structure of a synchronous motor comprises rotor slot wedge, damping ring; Retaining ring; It is characterized in that the damping tooth on said damping ring one end contacts with the rotor slot wedge inner surface, the other end of said damping ring contacts with the inner headed face of retaining ring; The end that said damping ring contacts with the rotor slot wedge inner surface is provided with elastic device, and said elastic device contacts with the outer surface of insulation filler strip; The inner headed face of said retaining ring is a taper seat.
2. the novel starting damping structure of synchronous motor as claimed in claim 1 is characterized in that said rotor slot wedge adopts whole slot wedge, and the material of said slot wedge adopts corronil.
3. the novel starting damping structure of synchronous motor as claimed in claim 1 is characterized in that, said damping ring adopts Kufil, and said damping ring surface is provided with silver coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102782654A CN102355106A (en) | 2011-09-19 | 2011-09-19 | Novel starting damping structure of synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102782654A CN102355106A (en) | 2011-09-19 | 2011-09-19 | Novel starting damping structure of synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102355106A true CN102355106A (en) | 2012-02-15 |
Family
ID=45578627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102782654A Pending CN102355106A (en) | 2011-09-19 | 2011-09-19 | Novel starting damping structure of synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102355106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114097162A (en) * | 2019-07-16 | 2022-02-25 | 三菱电机株式会社 | Short-circuit generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6252328B1 (en) * | 1998-04-23 | 2001-06-26 | Asea Brown Boveri Ag | Electrical machine with a rotor provided with amortisseur bars |
| US20020190597A1 (en) * | 2001-04-21 | 2002-12-19 | Walter Sohner | Rotor of a turbogenerator |
| US6765322B2 (en) * | 2001-08-01 | 2004-07-20 | General Electric Canada, Inc. | Amortisseur vibration damper |
| CN102185403A (en) * | 2011-05-09 | 2011-09-14 | 镇江中船现代发电设备有限公司 | Damping winding of generator rotor |
| CN202197198U (en) * | 2011-09-19 | 2012-04-18 | 山东齐鲁电机制造有限公司 | Novel start-up damping structure of synchronous motor |
-
2011
- 2011-09-19 CN CN2011102782654A patent/CN102355106A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6252328B1 (en) * | 1998-04-23 | 2001-06-26 | Asea Brown Boveri Ag | Electrical machine with a rotor provided with amortisseur bars |
| US20020190597A1 (en) * | 2001-04-21 | 2002-12-19 | Walter Sohner | Rotor of a turbogenerator |
| US6765322B2 (en) * | 2001-08-01 | 2004-07-20 | General Electric Canada, Inc. | Amortisseur vibration damper |
| CN102185403A (en) * | 2011-05-09 | 2011-09-14 | 镇江中船现代发电设备有限公司 | Damping winding of generator rotor |
| CN202197198U (en) * | 2011-09-19 | 2012-04-18 | 山东齐鲁电机制造有限公司 | Novel start-up damping structure of synchronous motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114097162A (en) * | 2019-07-16 | 2022-02-25 | 三菱电机株式会社 | Short-circuit generator |
| CN114097162B (en) * | 2019-07-16 | 2023-11-28 | 三菱电机株式会社 | Short-circuit generator |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120215 |