CN103133274A - Gearbox of generator of wind tower power station - Google Patents
Gearbox of generator of wind tower power station Download PDFInfo
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- CN103133274A CN103133274A CN2011103978830A CN201110397883A CN103133274A CN 103133274 A CN103133274 A CN 103133274A CN 2011103978830 A CN2011103978830 A CN 2011103978830A CN 201110397883 A CN201110397883 A CN 201110397883A CN 103133274 A CN103133274 A CN 103133274A
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- gearbox
- cone pulley
- power station
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- turbofan
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
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Abstract
A gearbox of a generator of a wind tower power station comprises a first cone pulley group and a second cone pulley group. The first cone pulley group comprises an input cone pulley and a driving cone pulley, the input cone pulley is fixed on an input shaft of the gearbox, and the driving cone pulley can move on the input shaft of the gearbox under the effect of a hydraulic cylinder. The second cone pulley group comprises an output cone pulley and a driven cone pulley, the output cone pulley is fixed on an output shaft of the gearbox, and the driven cone pulley can move on the output shaft of the gearbox under the effect of a return spring. An endless belt surrounds the two cone pulley groups. The gearbox of the generator of the wind tower power station applied to the inside of the buildings has the advantages of being little in noise, small in vibration, and capable of stabilizing output rotating speed and improving generating efficiency.
Description
Technical field
The present invention relates to a kind of wind-driven generator gear box system, particularly about a kind of generator transmission system that is applied in the Feng Ta power station.
Background technique
Along with socioeconomic continuous development, people are also increasing to the demand of the energy, and the coal that the mankind rely on, oil are all the non-renewable energy, and the refinement of coal, oil and use are very large to the pollution of environment, therefore, new reproducible clean energy resource is the target that the mankind constantly pursue, and wind energy is one of tool business potential, most active renewable and clean energy resource, have the cleaning of use, cost lower, use and wait not to the utmost plurality of advantages.The outstanding characteristics of wind-powered electricity generation be environmental benefit good, do not discharge any harmful matter and waste.
The shortcomings such as wind energy of the prior art is subjected to geographical environment and climatic impact very large, and floor space is very large.The invention provides a kind of wind energy of using in building, the wind energy of particularly using in the wind tower, its basic principle are, by the solar energy heating air of building outside, with hot air by perpendicular to rising on the air channel, ground, drive the turbine turbofan, drive the generator set generating, solved the restriction that is subjected to geographical environment and weather, and be applied in building, in the function that does not affect building, produce wind energy power, effectively solved the shortcomings such as floor space is large.
Chinese patent literature notification number: CN2581631Y discloses a kind of solar energy, wind energy power tour tower, and wind-force, air flow electric generator are set in tour tower, and outer surface arranges dome skylight, can generate electricity and can sightseeing tour.
Chinese patent literature publication number: CN1975075A discloses a kind of fair wind power generating demonstration sight-seeing tower, and the tower body top has gentle breeze-driven generator, wind energy power and the set of going sightseeing can be integrated.
Chinese patent literature notification number: CN201225235Y discloses a kind of building eminence and laneway wind energy power generation system, in building eminence and tunnel with wind-driven generator and fan setting, solves the problem of taking up an area the space.
These patent documentations in prior art, only simply with wind-power electricity generation and building combination, utilize the efficient of building not high, do not have effectively to configure wind-power electricity generation and solar electrical energy generation in the position of building yet, and all there is no the problem of the gearbox of open and solution generator, solve the technological scheme of controlling the stable output of gearbox.
As everyone knows, the speed-change gear box in wind power generating set is important mechanical part in a generator, and its main function is the rotating power that the turbine turbofan produces under the wind-force effect is passed to generator and make it obtain corresponding rotating speed.Usually the rotating speed of turbine turbofan is very low, far do not reach the desired rotating speed of generator generating, must realize by the accelerating function of gear-box gear pair, and the turbine turbofan is subjected to the impact that wind speed constantly changes sometimes, the rotating speed that produces is very unstable, has a strong impact on the generating efficiency of generator set.
Chinese patent literature notification number: CN201250763Y, a kind of generator speed wind power plant is stably disclosed, by an inertial flywheel is set, come the stored energy stabilized (steady-state) speed, but such structure, good stabilized (steady-state) speed, wind-force change violent in, the flywheel stabilization speed capability is limited, and the size of flywheel also too takes up room.
Chinese patent literature notification number: CN201288636Y discloses a kind of small-sized wind power generator rotating speed Detection ﹠ Controling device, by shaping circuit is set, current/voltage to generator is controlled, but still exist circuit easily to burn out, the problem that stability and reliability is not high, Applicable scope is narrow.
also have, the general generator set gearbox that uses on a large scale is gear structure, more generally, what use is planetary gear construction, although have reliable transmission, the advantage such as easy to maintenance, but, still there are a lot of unsatisfactory places, planetary gear construction is complicated, physical dimension is larger, noise vibration is large, and velocity ratio is fixed, uncontrollable, caused such cluster engine gearbox can not export constant rotating speed, the velocity ratio of gearbox can not be controlled, transmission efficiency is very unstable, especially be restricted in some specific use occasions.
The present invention is directed to that in prior art, there are some defectives in the generator set gearbox, provide to have the generator set gearbox of works fine performance more.
Summary of the invention
The purpose of this invention is to provide a kind of Feng Ta power station generator gearbox, can promote the rotating speed of input generator, further, effectively the rotating speed of stable output, obtain stable generating efficiency.
Further, provide a kind of gearbox that is applied to the interior of building wind-driven generator, have a noise low, vibrate little advantage.
A kind of gearbox that is applied to wind-driven generator, comprise gearbox input shaft and output shaft of gear-box, also comprise first and second groups of cone pulleys, first group of cone pulley comprises input cone pulley and active cone pulley, the input cone pulley is fixed on the gearbox input shaft, initiatively cone pulley can under the oil hydraulic cylinder effect, move on the gearbox input shaft; Second group of cone pulley comprises output cone pulley and driven cone pulley, the output cone pulley is fixed on output shaft of gear-box, and driven cone pulley can under the effect of return spring, move on output shaft of gear-box, endless band is centered around on two groups of cone pulleys, and described two groups of cone pulleys vertex of a cone of smaller diameter end respectively are oppositely arranged; The wind-force fan is connected to the gearbox input shaft by coupling, and output shaft of gear-box connects the generator input shaft by another coupling.
As further preferred, described coupling is elastic coupling flexible coupling.
As further preferred, described band is endless metal belt or endless strap.
As further preferred, the outer side surface of described band is sphenoid surface, and the inclined-plane with two groups of described cone pulleys coordinates respectively.
As further preferred, stepper motor is replaced oil hydraulic cylinder, and stepper motor is connected with the active cone pulley.
As further preferred, described gearbox is arranged on be used to the building roof with air channel, in described air channel, turbofan is set.
As further preferred, building has the air channel, in described air channel, turbofan is set, and described gearbox is arranged on turbofan.
As further preferred, the air in described air channel is heated, and the outer surface of described building has solar setup, is used for the air in heating air duct.
As further preferred, the air in described air channel is forced to suction comes in, and forms the larger air-flow of wind speed.
As further preferred, the turbofan in described air channel has coaxial configuration, and by the wind-drive turbofan, turbofan drives a turbofan axle jointly, and described turbofan axle is delivered to rotating power the input shaft of gearbox.
As further preferred, the turbofan in described air channel has common axis, and each turbofan has gearbox separately.
As further preferred, the air channel of described building is collected by four paths that are positioned at the building bottom and is formed.
As further preferred, arrange in described four paths and force air intake device and heating equipment.
Useful effect: when wind-force is too small, improve the rotating speed of input generator, improve generating efficiency; Excessive or change when violent at wind-force, the rotating speed of stable input generator avoids load and generator relevant device to damage, the working life of having improved generator and relevant device; It is low that gearbox of the present invention also has a noise, vibrates little advantage, especially is suitable in building.
Description of drawings
Fig. 1 is the gearbox designs schematic diagram of one embodiment of the invention;
Fig. 2 is the control flow chart that the present invention controls the gearbox velocity ratio;
Embodiment
As shown in Figure 1, gearbox comprises two groups of cone pulleys, first group of cone pulley is input cone pulley 3 and active cone pulley 4, what input cone pulley 3 was relative is active cone pulley 4, input cone pulley 3 is relative with the vertex of a cone (namely smaller diameter end) of active cone pulley 4, input cone pulley 3 is fixed on input shaft 13, and is irremovable, and initiatively cone pulley 4 can move along input shaft 13; Second group of cone pulley is output cone pulley 5 and driven cone pulley 6, and output cone pulley 5 is relative with the vertex of a cone of driven cone pulley 6, and output cone pulley 5 is fixed on output shaft, and irremovable, driven cone pulley 6 can move along output shaft; Gearbox comprises that also one is with 12, preferably,, is centered around on two groups of cone pulleys for there is no ring-type endless metal belt or the belt of end points with 12.
The axle 1 of turbofan is connected with input shaft 13 by coupling 2, and input shaft 13 is fixed on gearbox and inputs on cone pulley 3, and input shaft 13 is as the input end of gearbox, and as preferably, coupling 2 can be elastic coupling flexible coupling, can play the effect of certain buffer shock-absorbing; The active cone pulley 4 relative with input cone pulley 3, initiatively the other end of cone pulley 4 is connected with oil hydraulic cylinder 10; Output cone pulley 5 is relative with driven cone pulley 6, the other end of driven cone pulley 6 connects return spring 9, and an end of return spring 9 is supported on driven cone pulley 6, and the other end is supported on fixed parts, coaxial fixedly output shaft on output cone pulley 5, this output shaft is connected with generator 8 by coupling 7; Being with 12 to be centered around on two groups of cone pulleys, is non-telescoping with 12, has the endless band of fixed circumference, two groups of cone pulleys respectively under the effect of oil hydraulic cylinder and spring force, with suitable power clamping band 12, the sphenoid surface of the side with 12 for being fit to coordinate with the cone pulley inclined-plane.
Under the effect at wind-force, turbofan rotarily drives input shaft 13 rotations, thereby make initiatively cone pulley 3 rotations, due to first group of cone pulley clamping band 12 under the effect of cylinder pressure, first group of cone pulley rotation, by being with 12 will rotatablely move and be delivered to second group of cone pulley, drive second group of cone pulley rotation, will rotatablely move by output cone pulley 5 outputs to generator 8.
When wind-force was smaller, the rotating ratio of input was lower, needed gearbox to promote the rotating speed of input generator 8.At this moment, oil hydraulic cylinder 4 promotes initiatively, and cone pulley 4 moves to input cone pulley 3, compressive zone 12, be with 12 to move to periphery along the cone pulley inclined-plane, namely, with 12 around the diameter of first group of cone pulley become large, because the girth with 12 is certain, be with 12 extruding output cone pulley 5 and driven cone pulleys 6, be with 12 to move to the cone pulley inside circumference at second group of cone pulley, namely, diminished with 12 diameters around second group of cone pulley place, by like this, the velocity ratio of gearbox reduces, improved the rotating speed of output shaft, the rotating speed of input generator is improved.
When the violent conversion of wind-force, suddenly big or suddenly small, when very unstable, gearbox can carry out output speed to be regulated, and makes the rotating speed kept stable of output shaft, constantly changes in a smaller scope.Smaller when wind-force, when needing to improve output speed, the working procedure of gearbox is as described above.When wind-force is larger, when need reducing output speed, oil hydraulic cylinder 4 hydraulic unloadings, reduce hydraulic coupling, this moment, return spring 9 promoted driven cone pulleys 6 near output cone pulleys 5, compressive zone 12, with 12 around second group of cone pulley diameter become large, because the girth with 12 is changeless, be with 12 extruding input cone pulleys 3 and cone pulleys 4 initiatively, with 12 around first group of cone pulley diameter diminish, by like this, the velocity ratio of gearbox increases, and has reduced the rotating speed of output shaft.
As another embodiment, the difference of this embodiment and above-described embodiment is, uses stepper motor to replace oil hydraulic cylinder, because the motor shaft pitch of stepper motor is very little, possess very high kinematic accuracy, use step motor control can obtain better control effect.In the present embodiment, use the working procedure of stepper motor to be similar to oil hydraulic cylinder, when needing to regulate velocity ratio, stepper motor promotes forward or pulls back initiatively cone pulley 4, constantly adapts to the variation of wind-force, the rotating speed of stable output.
As shown in Figure 2, control the control gear of hydraulic cylinder, comprise controller 11 and speed probe 13, speed probe is arranged near output shaft, measures the rotating speed of output shaft, and preferably, speed probe adopts Hall transducer; Speed probe is passed to controller with the tach signal of output shaft, and controller is controlled the motion of oil hydraulic cylinder according to tach signal.
The TMS320LF240x dsp chip that controller 11 can adopt TIX to produce, output PWM duty cycle signals is controlled hydraulic cylinder or output current control step motor.Major control step principle is as follows:
Step 1: beginning, controller initiation parameter; The target setting rotating speed;
Step 2: gather the output shaft rotating speed;
Step 3: the output shaft rotating speed deducts rotating speed of target and obtains difference;
Step 4: less than a special value and greater than zero the time, preferably this character numerical value is 100 rev/mins, thinks output speed in suitable scope when difference, and oil hydraulic cylinder keeps present pressure, does not need action; During greater than a special value, think that the rotating speed of output shaft is too fast when difference, need to regulate gearbox and improve velocity ratio, discharge the oil hydraulic cylinder partial pressure; Less than zero the time, think that the rotating speed of output shaft is excessively slow when difference, need to regulate gearbox and reduce velocity ratio, increase the pressure of oil hydraulic cylinder.
Step 5: after any one situation action, return to step 2 in step 4;
By above-mentioned control step, complete increasing the output shaft rotating speed or reducing the purpose of output shaft rotating speed, make the rotating speed of input generator remain on one among a small circle in, the generating efficiency of stable generator.Avoid wind-force excessive, the electric current of generation damages load; When wind-force is too small, promote rotating speed, improve generating efficiency, avoided the loss of generator and relevant device thereof excessive, increase the working life of equipment.
As another preferred embodiment, the controlling method of stepper motor and above-mentioned controlling method are similar, it is only distinguished in step 4: when difference less than a special value and greater than zero the time, preferred this character numerical value is 100 rev/mins, think that output speed is in suitable scope, the stepper motor output shaft does not rotate, and does not need action; During greater than a special value, think that the rotating speed of output shaft is too fast when difference, need to regulate gearbox and improve velocity ratio, the positive hour hands rotation of stepper motor output shaft; Less than zero the time, think that the rotating speed of output shaft is excessively slow when difference, need to regulate gearbox and reduce velocity ratio, the output shaft of stepper motor is rotated counterclockwise.
The generator gearbox can be arranged on the wind top of tower, and generator also is arranged on the wind top of tower and is positioned at the top of gearbox.The generator gearbox can also be separately positioned on separately on a plurality of turbofans.
Described herein is exemplary preferred embodiment of the present invention; and the preferred embodiments of the present invention of having used concrete term description; but this description only is used for the example purpose; those skilled in the art should be noted that disclosed by the invention is only example; and be to be understood that; can make various changes and variation, and not break away from the protection domain of claim of the present invention.
It will be apparent to those skilled in the art that the combination in any that riveting formula spring brake chamber structure comprises each several part in this specification of revolving of the present invention.As space is limited and in order to be to make specification simple and clear, these combinations not to be introduced one by one in detail at this, but after having seen this specification, the scope of the present invention that the combination in any of the each several part that is made of this specification consists of is self-evident.
Claims (10)
1. Feng Ta power station generator gearbox, comprise gearbox input shaft and output shaft of gear-box, it is characterized in that: also comprise first and second groups of cone pulleys, first group of cone pulley comprises input cone pulley and active cone pulley, the input cone pulley is fixed on the gearbox input shaft, initiatively cone pulley can under the oil hydraulic cylinder effect, move on the gearbox input shaft; Second group of cone pulley comprises output cone pulley and driven cone pulley, the output cone pulley is fixed on output shaft of gear-box, and driven cone pulley can under the effect of return spring, move on output shaft of gear-box, endless band is centered around on two groups of cone pulleys, and described two groups of cone pulleys vertex of a cone of smaller diameter end respectively are oppositely arranged; The wind-force fan is connected to the gearbox input shaft by coupling, and output shaft of gear-box connects the generator input shaft by another coupling.
2. Feng Ta power station generator gearbox as claimed in claim 1, it is characterized in that: described coupling is elastic coupling flexible coupling.
3. Feng Ta as claimed in claim 1 power station generator gearbox, it is characterized in that: described band is endless metal belt or endless strap.
4. Feng Ta as claimed in claim 3 power station generator gearbox, it is characterized in that: the outer side surface of described band is sphenoid surface, and the inclined-plane with two groups of described cone pulleys coordinates respectively.
5. as described in one of claim 1-4 Feng Ta power station generator gearbox, it is characterized in that: stepper motor is replaced oil hydraulic cylinder, and stepper motor is connected with the active cone pulley.
6. Feng Ta as claimed in claim 1 power station generator gearbox, it is characterized in that: described gearbox is arranged on be used to the building roof with air channel, in described air channel, turbofan is set.
7. Feng Ta as claimed in claim 1 power station generator gearbox, it is characterized in that: building has the air channel, in described air channel, turbofan is set, and described gearbox is arranged on turbofan.
8. as described in claim 6 or 7 Feng Ta power station generator gearbox, it is characterized in that: the air in described air channel is heated, and the outer surface of described building has solar setup, is used for the air in heating air duct.
9. as described in claim 6 or 7 Feng Ta power station generator gearbox, it is characterized in that: the air in described air channel is forced to suction comes in, and forms the larger air-flow of wind speed.
10. Feng Ta as claimed in claim 6 power station generator gearbox, it is characterized in that: the turbofan in described air channel has coaxial configuration, by the wind-drive turbofan, turbofan drives a turbofan axle jointly, and described turbofan axle is delivered to rotating power the input shaft of gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103978830A CN103133274A (en) | 2011-12-05 | 2011-12-05 | Gearbox of generator of wind tower power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103978830A CN103133274A (en) | 2011-12-05 | 2011-12-05 | Gearbox of generator of wind tower power station |
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| CN103133274A true CN103133274A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103978830A Pending CN103133274A (en) | 2011-12-05 | 2011-12-05 | Gearbox of generator of wind tower power station |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2581631Y (en) * | 2002-06-27 | 2003-10-22 | 樊维亚 | Solar energy and wind energy power generation sightseeing tower |
| US20080284171A1 (en) * | 2007-05-16 | 2008-11-20 | V3 Technologies, L.L.C. | Augmented wind power generation system using an antecedent atmospheric sensor and method of operation |
| CN101392727A (en) * | 2008-11-06 | 2009-03-25 | 上海应用技术学院 | Automatic speed regulation and smooth rate apparatus for wind power generation system |
| CN201517472U (en) * | 2009-06-04 | 2010-06-30 | 浙江运达风力发电工程有限公司 | Stepless variable-speed wind-driven generator |
| CN202441553U (en) * | 2011-12-05 | 2012-09-19 | 周登荣 | Generator gearbox for wind tower power station |
-
2011
- 2011-12-05 CN CN2011103978830A patent/CN103133274A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2581631Y (en) * | 2002-06-27 | 2003-10-22 | 樊维亚 | Solar energy and wind energy power generation sightseeing tower |
| US20080284171A1 (en) * | 2007-05-16 | 2008-11-20 | V3 Technologies, L.L.C. | Augmented wind power generation system using an antecedent atmospheric sensor and method of operation |
| CN101392727A (en) * | 2008-11-06 | 2009-03-25 | 上海应用技术学院 | Automatic speed regulation and smooth rate apparatus for wind power generation system |
| CN201517472U (en) * | 2009-06-04 | 2010-06-30 | 浙江运达风力发电工程有限公司 | Stepless variable-speed wind-driven generator |
| CN202441553U (en) * | 2011-12-05 | 2012-09-19 | 周登荣 | Generator gearbox for wind tower power station |
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Application publication date: 20130605 |