CN207251415U - A kind of excitation mechanism for generator - Google Patents
A kind of excitation mechanism for generator Download PDFInfo
- Publication number
- CN207251415U CN207251415U CN201721011272.7U CN201721011272U CN207251415U CN 207251415 U CN207251415 U CN 207251415U CN 201721011272 U CN201721011272 U CN 201721011272U CN 207251415 U CN207251415 U CN 207251415U
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- CN
- China
- Prior art keywords
- generator
- rotor
- excitation
- shaft
- shaft coupling
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- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Synchronous Machinery (AREA)
Abstract
It the utility model is related to a kind of excitation mechanism for generator,Including generator's cover,The generator's cover side is connected with generator shaft,Magnet exciting coil is from left to right equipped with the generator shaft successively,Bearing,Rotor coil,Blast fan,The generator shaft other end is fixedly connected with shaft coupling,The shaft coupling is installed in shaft coupling mounting disc,Described shaft coupling one end is fixedly connected with connecting shaft,It is provided with the magnet exciting coil on excitation rotor,Main rotor is installed on the rotor coil,And fixed excitation rotor is provided with generator casing,The groove of main rotor,The new excitation structure of hanging ring is additionally provided with the top of generator casing,Change the layout structure of the parts of rotor,This structure excitation rotor takes fabricated construction,Small―gap suture coordinates,It is easily installed dismounting,Effectively shorten the axial distance between fulcrum,Easy to safeguard,It is convenient for changing internal bearings,Carbon brush etc..
Description
Technical field
A kind of excitation mechanism for generator is the utility model is related to, belongs to gen-set technical field.
Background technology
Excitation is exactly to provide stator power to generator or stator of synchronous motor, and (electromagnetism sense is utilized for generator etc.
The electrical equipment for answering principle to work) operating fields are provided, the device for providing rotor power supply to generator amature sometimes is also excitation,
According to the difference of excitation of direct current generator mode, the modes such as his excitation, and excitation, series excitation magnetic, compound excitation magnetic can be divided into, direct current generator
In rotation process, excitation is exactly the changes of magnetic field for controlling the voltage of stator to produce it, changes the rotating speed of direct current generator, and change is encouraged
Magnetic equally plays the role of changing rotating speed, and for the excitation system of synchronous alternating-current generator due to there is electronic component, Rig up error is high
Speed rotation abrasion, the reasons such as working environment is severe cause excitation system failure rate higher, and assembly technology is complicated, distance between the fulcrum compared with
Greatly, each county requirement thus to parts is more demanding.So generator manufacturer takes various methods to make great efforts to improve, such as scheme
Shown in 2, the assemble sequence of the parts of present generator excited system is shaft coupling mounting disc, and (bearing), be pressed wind wheel, master
Rotor, excitation rotor, bearing set, this structure just have the high requirement of comparison in the generator fabrication stage, and parallel plug rotor will
Ask the larger technological equipment efficiency that puts into production low, and concentricity cannot be controlled well by vertically filling in, and easily lead to the damage of winding
Wound.Operation phase is when the electronic component rectification module of excitation system needs to repair, it is necessary to generator is separated with unit, is taken out
Go out main rotor, some will even pull out excitation rotor, maintenance period length, waste of time, it is necessary to machine equipment it is more complicated.
Utility model content
The technical problems to be solved in the utility model overcomes the defects of existing, there is provided a kind of exciter for generator
Structure, is easily installed dismounting, effectively shortens the axial distance between fulcrum, easy to safeguard, can effectively solve asking in background technology
Topic.
In order to solve the above-mentioned technical problem, the utility model provides following technical solution：
A kind of excitation mechanism for generator, including generator's cover, the generator's cover side are connected with power generation
Owner's axis, magnet exciting coil, bearing, rotor coil, blast fan, the hair are from left to right equipped with the generator shaft successively
The electric machine main shaft other end is fixedly connected with shaft coupling, and the shaft coupling is installed in shaft coupling mounting disc, described shaft coupling one end
Connecting shaft is fixedly connected with, is provided with the magnet exciting coil on excitation rotor, main rotor is installed on the rotor coil, and
The groove of fixed excitation rotor, main rotor is provided with generator casing, hanging ring is additionally provided with the top of generator casing.
Furthermore, the bearing is rolling bearing.
Furthermore, the blast fan is fixedly connected on generator shaft by flat key, the blast fan
Number is at least three.
Furthermore, the generator's cover is bolted to connection on generator casing.
Furthermore, the main rotor periphery is additionally provided with stator winding.
Furthermore, the excitation rotor is assembled excitation rotor.
The utility model beneficial effect：A kind of excitation mechanism for generator, excitation rotor takes fabricated construction, small
Clearance fit, therefore can vertically fill in main rotor beneficial to assembly and disassembly, after sealing bearing suit can estimate not easy damaged main stator
Rotor windings, technological equipment are simple, it is thus only necessary to which two hanging rings of standard component, reassemble excitation rotor, to employee afterwards in place
Operative skill require also not high, effectively shorten axial distance between fulcrum, the on the one hand required precision to parts reduces,
The length of main rotor can be appropriately extended at the same time, beneficial to reducing the cost, beneficial to maintenance, especially for there is brush configuration, improve
Conducting ring and carbon brush working environment, avoid dust particles, increase the abrasion of carbon brush conducting ring, even if replacement conducting ring, carbon brush
It is very simple, it is not necessary to which that professional can complete, and operating space is unrestricted, operate and completed in range estimation, brushless excitation
Excitation rotor need to only be pulled out, easy to replace the bearing for reaching the service life in time, not increase dismounting difficulty.
Brief description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form the limitation to the utility model.
Fig. 1 is a kind of excitation mechanism cut-away view for generator of the utility model.
Fig. 2 is the excitation mechanism cut-away view of common generator.
Figure label：1st, generator's cover；2nd, generator shaft；3rd, magnet exciting coil；4th, excitation rotor；5th, bearing；6th, turn
Subcoil；7th, main rotor；8th, blast fan；9th, shaft coupling；10th, connecting shaft.
Embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it will be appreciated that described herein excellent
Select embodiment to be only used for describing and explaining the present invention, be not used to limit the utility model.
As shown in Figs. 1-2, a kind of excitation mechanism for generator, including generator's cover 1, for excitation mechanism into
Row sealing, 1 side of generator's cover is connected with generator shaft 2, is from left to right set successively on the generator shaft 2
There are magnet exciting coil 3, bearing 5, rotor coil 6, blast fan 8, blast fan 8 is used for the heat dissipation of generator, passes through main rotor 7
Rotation in magnet exciting coil 3 produces magnetic field, and 2 other end of generator shaft is fixedly connected with shaft coupling 9, is sent out for connecting
Electric machine main shaft 2 and connecting shaft, the shaft coupling 9 are installed in shaft coupling mounting disc, and described 9 one end of shaft coupling is fixedly connected with company
Spindle 10, is provided with excitation rotor 4 on the magnet exciting coil 3, main rotor 7, and generator is provided with the rotor coil 6
Fixed excitation rotor 4, the groove of main rotor 7 are provided with shell, hanging ring is additionally provided with the top of generator casing.
More specifically, the bearing 5 is rolling bearing, and rotation is more steady, and loss is less, and the blast fan 8 is logical
Cross flat key to be fixedly connected on generator shaft 2, the number of the blast fan 8 is at least three, effectively by generator amature
The heat loss produced in rotation process is gone out, and the generator's cover 1 is bolted to connection on generator casing, institute
State 7 periphery of main rotor and be additionally provided with stator winding, the excitation rotor 4 is assembled excitation rotor, and small―gap suture coordinates, is beneficial to
Assembly and disassembly, sealing bearing can vertically fill in main rotor 7 after being set with, therefore can estimate not easy damaged main stator rotor windings, work
Skill equipment is simple.
The utility model improve in：A kind of excitation mechanism for generator, excitation rotor 4 takes fabricated construction, small
Clearance fit, beneficial to assembly and disassembly, can vertically fill in main rotor 7, therefore can estimate not easy damaged master and determine after sealing bearing suit
Sub- rotor windings, technological equipment are simple, it is thus only necessary to which two hanging rings of standard component, reassemble excitation rotor 4, to member afterwards in place
The operative skill of work requires also not high, effectively shortens axial distance between fulcrum, on the one hand the required precision drop to parts
It is low, while the length of main rotor 7 can be appropriately extended, beneficial to reducing the cost, beneficial to maintenance, especially for there is brush configuration, change
Conducting ring and carbon brush working environment have been apt to it, have avoided dust particles, increased the abrasion of carbon brush conducting ring, even if replaces conducting ring, carbon
Brush is also very simple, it is not necessary to which professional can complete, and operating space is unrestricted, operate and completed in range estimation, brushless
Excitation need to only pull out excitation rotor 4, easy to replace the bearing for reaching the service life in time, not increase dismounting difficulty.
It is above the preferable embodiment of the utility model, the utility model those skilled in the art can also be to upper
Embodiment make a change and modification are stated, therefore, the utility model is not limited to above-mentioned embodiment, every ability
Any conspicuously improved, replacement or modification that field technique personnel are made on the basis of the utility model belong to this practicality
New protection domain.
Claims (6)
1. a kind of excitation mechanism for generator, including generator's cover (1), it is characterised in that：The generator's cover (1)
Side is connected with generator shaft (2), and magnet exciting coil (3), bearing are from left to right equipped with successively on the generator shaft (2)
(5), rotor coil (6), blast fan (8), generator shaft (2) other end is fixedly connected with shaft coupling (9), described
Axis device (9) is installed in shaft coupling mounting disc, and described shaft coupling (9) one end is fixedly connected with connecting shaft (10), the excitation wire
It is provided with circle (3) on excitation rotor (4), main rotor (7) is installed on the rotor coil (6), and set on generator casing
Fixed excitation rotor (4), the groove of main rotor (7) are equipped with, hanging ring is additionally provided with the top of generator casing.
A kind of 2. excitation mechanism for generator according to claim 1, it is characterised in that：The bearing (5) is rolling
Bearing.
A kind of 3. excitation mechanism for generator according to claim 1, it is characterised in that：The blast fan (8) is logical
Cross flat key to be fixedly connected on generator shaft (2), the number of the blast fan (8) is at least three.
A kind of 4. excitation mechanism for generator according to claim 1, it is characterised in that：The generator's cover (1)
It is bolted to connection on generator casing.
A kind of 5. excitation mechanism for generator according to claim 1, it is characterised in that：Main rotor (7) periphery
It is additionally provided with stator winding.
A kind of 6. excitation mechanism for generator according to claim 1, it is characterised in that：The excitation rotor (4) is
Assembled excitation rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721011272.7U CN207251415U (en) | 2017-08-14 | 2017-08-14 | A kind of excitation mechanism for generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721011272.7U CN207251415U (en) | 2017-08-14 | 2017-08-14 | A kind of excitation mechanism for generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251415U true CN207251415U (en) | 2018-04-17 |
Family
ID=61881451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721011272.7U Expired - Fee Related CN207251415U (en) | 2017-08-14 | 2017-08-14 | A kind of excitation mechanism for generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207251415U (en) |
-
2017
- 2017-08-14 CN CN201721011272.7U patent/CN207251415U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20200814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |