CN202197198U - Novel start-up damping structure of synchronous motor - Google Patents
Novel start-up damping structure of synchronous motor Download PDFInfo
- Publication number
- CN202197198U CN202197198U CN2011203508262U CN201120350826U CN202197198U CN 202197198 U CN202197198 U CN 202197198U CN 2011203508262 U CN2011203508262 U CN 2011203508262U CN 201120350826 U CN201120350826 U CN 201120350826U CN 202197198 U CN202197198 U CN 202197198U
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- damping
- slot wedge
- ring
- damping ring
- rotor slot
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Abstract
The utility model discloses a novel start-up damping structure of a synchronous motor, which comprises a rotor slot wedge, a damping ring and a protective ring, and is characterized in that a damping tooth at one end of the damping ring is contacted with the inner surface of the rotor slot wedge, and the other end of the damping ring is contacted with an inner circle face of the protective ring. An elastic device is arranged at one end of the damping ring contacted with the inner surface of the rotor slot wedge, the elastic device is contacted with the outer surface of an insulating pad strip, and the inner circle face of the protective ring is a conical face. The rotor slot wedge adopts an integral slot wedge, the slot wedge is made of copper-nickel alloys, the damping ring is made of copper-sliver alloys, and a sliver plated layer is arranged on the surface of the damping ring. The novel start-up damping structure of the synchronous motor has the advantages of being good in contact performance and conductivity property, high in strength and safe and reliable in high speed operation.
Description
Technical field
The utility model relates to the synchronous motor technical field, relates 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 purpose of the utility model 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 utility model 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.
The beneficial effect of the utility model: because the novel starting damping structure of the synchronous motor of the utility model 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 the utility model synchronous motor;
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 utility model 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 the utility model; But be not restriction to the utility model protection range; One of ordinary skill in the art should be understood that; On the basis of the technical scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection range of the utility model.
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 |
|---|---|---|---|
| CN2011203508262U CN202197198U (en) | 2011-09-19 | 2011-09-19 | Novel start-up damping structure of synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203508262U CN202197198U (en) | 2011-09-19 | 2011-09-19 | Novel start-up damping structure of synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202197198U true CN202197198U (en) | 2012-04-18 |
Family
ID=45952097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203508262U Expired - Lifetime CN202197198U (en) | 2011-09-19 | 2011-09-19 | Novel start-up damping structure of synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202197198U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355106A (en) * | 2011-09-19 | 2012-02-15 | 山东齐鲁电机制造有限公司 | Novel starting damping structure of synchronous motor |
| CN103501083A (en) * | 2013-10-15 | 2014-01-08 | 湘潭电机股份有限公司 | Connecting structure of damping ring and pole piece for solid magnetic pole salient pole synchronous motor |
| CN111835113A (en) * | 2020-07-07 | 2020-10-27 | 山东齐鲁电机制造有限公司 | Heavy gas turbine generator rotor coil structure suitable for variable frequency starting |
-
2011
- 2011-09-19 CN CN2011203508262U patent/CN202197198U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355106A (en) * | 2011-09-19 | 2012-02-15 | 山东齐鲁电机制造有限公司 | Novel starting damping structure of synchronous motor |
| CN103501083A (en) * | 2013-10-15 | 2014-01-08 | 湘潭电机股份有限公司 | Connecting structure of damping ring and pole piece for solid magnetic pole salient pole synchronous motor |
| CN103501083B (en) * | 2013-10-15 | 2015-12-23 | 湘潭电机股份有限公司 | The syndeton of a kind of solid magnetic pole salient-pole synchronous motor damping ring and pole shoe |
| CN111835113A (en) * | 2020-07-07 | 2020-10-27 | 山东齐鲁电机制造有限公司 | Heavy gas turbine generator rotor coil structure suitable for variable frequency starting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |
|
| CX01 | Expiry of patent term |