CN202978648U - Brushless synchronous generator with dust extraction pipe on thermovent - Google Patents
Brushless synchronous generator with dust extraction pipe on thermovent Download PDFInfo
- Publication number
- CN202978648U CN202978648U CN 201220594617 CN201220594617U CN202978648U CN 202978648 U CN202978648 U CN 202978648U CN 201220594617 CN201220594617 CN 201220594617 CN 201220594617 U CN201220594617 U CN 201220594617U CN 202978648 U CN202978648 U CN 202978648U
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- generator
- thermovent
- exciter
- casing
- rotating shaft
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- Expired - Fee Related
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Abstract
The present utility model relates to the generator field, especially to a brushless synchronous generator. The brushless synchronous generator with a dust extraction pipe on a thermovent comprises a shell, a rotating shaft, a generator stator, a generator rotor, an exciter stator, an exciter armature, a rotation rectifier and a conjunction box, the rotating shaft passes through the shell, the generator rotor, the exciter armature and the rotation rectifier are successively and fixedly arranged on the rotating shaft from the front to the rear, the generator stator and the exciter stator are fixedly arranged inside the shell, the generator stator and the generator rotor are fitted, the exciter stator and the exciter armature are fitted, the conjunction box is fixedly arranged outside the shell, the thermovent of the shell is connected with the dust extraction bending pipe, and a filter screen is arranged inside the dust extraction bending pipe. The dust extraction bending pipe is arranged on the thermovent, external dust is blocked inside the dust extraction bending pipe, cooling of a motor is guaranteed, excessive dust can be prevented, and reliability of work of the motor can be guaranteed.
Description
Technical field
The utility model relates to electrical generator fields, relates in particular to a kind of no-brush synchronous generator.
Background technology
Due to advantages such as electric energy have production and conversion ratio less expensive, and transmission and distribution ratio are easier to, and use and control ratio are more convenient, thereby become modern the most frequently used a kind of energy.And along with the development of national economy, automaticity is more and more higher, and is increasing to the demand of electricity, not only requires electricity consumption quantity, simultaneously power quality also proposed requirement, undoubtedly the performance of synchronous generator also proposed high request.And excitation mode directly has influence on performance, reliability and the specification requirement of generator, so the research of excitation mode has become an important topic of motor development.Originally adopted DC generator to come excitation always, the direct current that namely sends with DC generator, encircle the rotor system group of introducing synchronous generator with brush by the edge, but the continuous increase along with capacity motor, the commutation of direct current machine has become a great problem, and need carbon brush and along ring, have carbon brush abrasion and the carbon brush powder dirty coil insulation of letter and other parts problem.
No-brush synchronous generator is by main generator, AC exciter, and the major parts such as rotating rectifier form, main generator rotor, armature of exciter and rotating rectifier all are contained in rotation together on same axle, due to the material relation, root diameter is subject to strict restriction, generally can not be over 1.2 meters.And the length of rotor body is subject to the restriction of critical speed.When body length reach diameter more than 6 times the time, the Second Critical Speed of rotor will be close to the running speed of motor, in service larger vibration may occur.So the size of large high-speed generator amature is subject to strict restriction.Its rotor size of air cooling motor of 100,000 kilowatts of left and right has reached above-mentioned dimension limit, to increase again capacity motor, only have by the electromagnetic load that increases motor and realize, must strengthen the cooling of motor for this reason, cooling capacity has directly determined the heap(ed) capacity of high-rating generator.
A part in cooling capacity is determined by the size of fan power and thermovent, but thermovent is excessive, and dust just is easy to enter into generator from thermovent when generator is not worked, and has affected the reliability of generator.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of no-brush synchronous generator of thermovent band dust removing tube, is provided with the dedusting bend pipe on the thermovent of this generator, and the ash quantity fed of the motor that reduces has guaranteed the reliability of machine operation.
the utility model is achieved in that a kind of no-brush synchronous generator of thermovent band dust removing tube, comprise casing, rotating shaft, generator unit stator, generator amature, exciter stator, armature of exciter, rotating rectifier and terminal box, casing is passed in described rotating shaft, described generator amature, armature of exciter and rotating rectifier are fixedly mounted in rotating shaft from front to back in turn, described generator unit stator and exciter stator are fixedly mounted in casing, generator unit stator matches with generator amature, exciter stator matches with armature of exciter, described terminal box is fixedly mounted on outside casing, be connected with an end dedusting bend pipe on the thermovent of described casing, be provided with filter screen in described dedusting bend pipe.
Described filter screen has some layers, is arranged in parallel within the dedusting bend pipe.
The front end of described rotating shaft is connected with the connection steel disc by shaft coupling.
The rear and front end of described casing is respectively arranged with front end housing and rear end cap, is connected by bearing between described rotating shaft and front end housing and rear end cap.
Fan also fixedly is housed in described rotating shaft, and described fan is arranged in casing, and the blowing of fan is facing to generator unit stator and generator amature.
In described terminal box, field regulator is housed.
Described terminal box is fixedly mounted on the top of casing.
Be provided with the dedusting bend pipe on the thermovent of the no-brush synchronous generator of the utility model thermovent band dust removing tube, the dust of outside is blocked in the dedusting bend pipe, both guaranteed the cooling of motor, can avoid too much dust again, guaranteed the reliability of machine operation.
Description of drawings
Fig. 1 is the no-brush synchronous generator structural representation of the utility model thermovent band dust removing tube.
In figure: 1 casing, 2 front end housings, 3 rear end caps, 4 rotating shafts, 5 generator unit stators, 6 generator amatures, 7 exciter stators, 8 armature of exciters, 9 rotating rectifiers, 10 terminal boxes, 11 thermovents, 12 shaft couplings, 13 connect steel disc, 14 field regulators, 15 fans, 16 dedusting bend pipes, 17 filter screens.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model statement, these equivalent form of values fall within the application's appended claims limited range equally.
as shown in Figure 1, a kind of no-brush synchronous generator of thermovent band dust removing tube, comprise casing 1, rotating shaft 4, generator unit stator 5, generator amature 6, exciter stator 7, armature of exciter 8, rotating rectifier 9 and terminal box 10, casing 1 is passed in described rotating shaft 4, described generator amature 6, armature of exciter 8 and rotating rectifier 9 are fixedly mounted in rotating shaft 4 from front to back in turn, described generator unit stator 5 and exciter stator 7 are fixedly mounted in casing 1, generator unit stator 5 matches with generator amature 6, exciter stator 7 matches with armature of exciter 8, described terminal box 10 is fixedly mounted on outside casing 1, be connected with an end dedusting bend pipe 16 on the thermovent 11 of described casing 1, be provided with filter screen 17 in described dedusting bend pipe 16, adopt dedusting bend pipe 16 neither can have influence on generator needed space is installed, can stop that again outside dust enters into generator from thermovent 11, guaranteed the reliability of generator work.
In the present embodiment, in order to improve dust removing effects, described filter screen 17 has some layers, is arranged in parallel within dedusting bend pipe 16.
The utility model can further describe into, the front end of described rotating shaft 4 by shaft coupling 12 with connect steel disc 13 and be connected, by connecting steel disc 13 drive rotating shaft 4 rotary electrifications that are connected with diesel engine or steam turbine.
In the present embodiment, the rear and front end of described casing 1 is respectively arranged with front end housing 2 and rear end cap 3, is connected by bearing between described rotating shaft 4 and front end housing 2 and rear end cap 3.
In the present embodiment, in order to guarantee the radiating effect of motor internal, fan 15 is housed fixedly also in described rotating shaft 4, described fan 15 is arranged in casing 1, and the blowing of fan 15 is facing to generator unit stator 5 and generator amature 6.
In the present embodiment, in described terminal box 10, field regulator 14 is housed.
In the present embodiment, described terminal box 10 is fixedly mounted on the top of casing 1, terminal block is housed in terminal box 10 is convenient to draw alternating current.
Claims (7)
1. the no-brush synchronous generator of a thermovent band dust removing tube, comprise casing (1), rotating shaft (4), generator unit stator (5), generator amature (6), exciter stator (7), armature of exciter (8), rotating rectifier (9) and terminal box (10), casing (1) is passed in described rotating shaft (4), described generator amature (6), armature of exciter (8) and rotating rectifier (9) are fixedly mounted in rotating shaft (4) from front to back in turn, described generator unit stator (5) and exciter stator (7) are fixedly mounted in casing (1), generator unit stator (5) matches with generator amature (6), exciter stator (7) matches with armature of exciter (8), described terminal box (10) is fixedly mounted on outside casing (1), be electrically connected between generator amature (6) and armature of exciter (8), it is characterized in that: be connected with an end dedusting bend pipe (16) on the thermovent (11) of described casing (1), be provided with filter screen (17) in described dedusting bend pipe (16).
2. the no-brush synchronous generator of thermovent band dust removing tube as claimed in claim 1 is characterized in that: described filter screen (17) has some layers, is arranged in parallel within dedusting bend pipe (16).
3. the no-brush synchronous generator of thermovent band dust removing tube as claimed in claim 1 or 2 is characterized in that: the front end of described rotating shaft (4) is connected with connection steel disc (13) by shaft coupling (12).
4. the no-brush synchronous generator of thermovent band dust removing tube as claimed in claim 1 or 2, it is characterized in that: the rear and front end of described casing (1) is respectively arranged with front end housing (2) and rear end cap (3), is connected by bearing between described rotating shaft (4) and front end housing (2) and rear end cap (3).
5. the no-brush synchronous generator of thermovent band dust removing tube as claimed in claim 1 or 2, it is characterized in that: fan (15) also fixedly is housed in described rotating shaft (4), described fan (15) is arranged in casing (1), and the blowing of fan (15) is facing to generator unit stator (5) and generator amature (6).
6. the no-brush synchronous generator of thermovent band dust removing tube as claimed in claim 1 or 2, is characterized in that: field regulator (14) is housed in described terminal box (10).
7. the no-brush synchronous generator of thermovent band dust removing tube as claimed in claim 6, it is characterized in that: described terminal box (10) is fixedly mounted on the top of casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220594617 CN202978648U (en) | 2012-11-01 | 2012-11-01 | Brushless synchronous generator with dust extraction pipe on thermovent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220594617 CN202978648U (en) | 2012-11-01 | 2012-11-01 | Brushless synchronous generator with dust extraction pipe on thermovent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978648U true CN202978648U (en) | 2013-06-05 |
Family
ID=48519671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220594617 Expired - Fee Related CN202978648U (en) | 2012-11-01 | 2012-11-01 | Brushless synchronous generator with dust extraction pipe on thermovent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978648U (en) |
-
2012
- 2012-11-01 CN CN 201220594617 patent/CN202978648U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131101 |