CN202978661U

CN202978661U - Brushless Synchronous Generator with Adjustable Cooling Vent

Info

Publication number: CN202978661U
Application number: CN 201220594597
Authority: CN
Inventors: 尾扎拿加彭错
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-01
Filing date: 2012-11-01
Publication date: 2013-06-05
Anticipated expiration: 2022-11-01

Abstract

The utility model relates to a generator field especially relates to a brushless synchronous generator. The utility model provides a thermovent adjustable brushless synchronous generator, includes casing, pivot, generator stator, generator rotor, exciter stator, exciter armature, rotary rectifier and terminal box, the casing is passed in the pivot, generator rotor, exciter armature and rotary rectifier fixed mounting in order backward in the past are in the pivot, generator stator and exciter stator fixed mounting are in the casing, and generator stator and generator rotor cooperate, and exciter stator and exciter armature cooperate, terminal box fixed mounting is outside the casing, and the electricity is connected between generator rotor and the exciter armature, be provided with adjustable fender on the thermovent of casing. The utility model discloses be provided with adjustable fender on the thermovent, can both guarantee the cooling of motor according to the actual behavior of generator and the aperture of giving out heat and adjusting the thermovent, can avoid too much dust again, guarantee the reliability of motor work.

Description

The no-brush synchronous generator that thermovent is adjustable

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.

Summary of the invention

Technical problem to be solved in the utility model is to provide the adjustable no-brush synchronous generator of a kind of thermovent, is provided with sideboard 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 the no-brush synchronous generator that a kind of thermovent is adjustable, 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 provided with sideboard on the thermovent of described casing.

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 sideboard on the thermovent of the no-brush synchronous generator that the utility model thermovent is adjustable, can be according to the aperture of generator real work situation and caloric value adjusting thermovent, both guarantee the cooling of motor, and can avoid too much dust again, guaranteed the reliability of machine operation.

Description of drawings

Fig. 1 is the adjustable no-brush synchronous generator structural representation of the utility model thermovent.

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 sideboards, 12 shaft couplings, 13 connect steel disc, 14 field regulators, 15 fans.

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.

Embodiment 1

as shown in Figure 1, the no-brush synchronous generator that a kind of thermovent is adjustable, 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, usually be provided with thermovent on casing 1, the too small meeting of thermovent has influence on the cooling of motor, and the excessive dust that makes of thermovent is easy to enter into motor internal, affect the reliability of machine operation, in the utility model, be provided with sideboard 11 on the thermovent of described casing 1.

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

1. A brushless synchronous generator with adjustable cooling outlet, comprising a casing (1), a rotating shaft (4), a generator stator (5), a generator rotor (6), an exciter stator (7), an exciter motor pivot (8), rotary rectifier (9) and junction box (10), the shaft (4) passes through the casing (1), the generator rotor (6), exciter armature (8) and rotary rectifier ( 9) Fixedly installed on the rotating shaft (4) from front to back, the generator stator (5) and the exciter stator (7) are fixedly installed in the casing (1), the generator stator (5) and the generator The rotor (6) is matched, the exciter stator (7) is matched with the exciter armature (8), and the junction box (10) is fixedly installed outside the casing (1). It is characterized in that: the casing (1 ) is provided with a movable baffle (11) on the cooling port.

2. The brushless synchronous generator with adjustable cooling vents according to claim 1, characterized in that: the front end of the rotating shaft (4) is connected to the connecting steel sheet (13) through a coupling (12).

3. The brushless synchronous generator with adjustable cooling vents according to claim 1, characterized in that: the front and rear ends of the casing (1) are respectively provided with a front end cover (2) and a rear end cover (3) , the rotating shaft (4) is connected with the front end cover (2) and the rear end cover (3) through bearings.

4. The brushless synchronous generator with adjustable cooling vents as claimed in claim 1, characterized in that: a fan (15) is fixedly mounted on the rotating shaft (4), and the fan (15) is arranged on the casing (1), the blowing face of the fan (15) faces the generator stator (5) and the generator rotor (6).

5. The brushless synchronous generator with adjustable cooling openings according to claim 1, characterized in that: said junction box (10) is equipped with an excitation regulator (14).

6. The brushless synchronous generator with adjustable cooling openings according to claim 5, characterized in that: the junction box (10) is fixedly installed on the top of the casing (1).