CN103410683B - A kind of high low speed reel car device of high-power wind turbine unit and using method thereof - Google Patents

A kind of high low speed reel car device of high-power wind turbine unit and using method thereof Download PDF

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Publication number
CN103410683B
CN103410683B CN201310368886.0A CN201310368886A CN103410683B CN 103410683 B CN103410683 B CN 103410683B CN 201310368886 A CN201310368886 A CN 201310368886A CN 103410683 B CN103410683 B CN 103410683B
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gear
intergrade
power
high speed
gearshift
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CN201310368886.0A
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CN103410683A (en
Inventor
熊维军
祝洪波
梁宪峰
杨胜
刘高辉
吕杏梅
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CRRC Zhuzhou Institute Co Ltd
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CSR Zhuzou Institute Co Ltd
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Abstract

The invention discloses a kind of high low speed reel car device and using method thereof of high-power wind turbine unit.The high low speed reel car device of described high-power wind turbine unit comprises main-gear box, external hydraulic power, oil hydraulic motor, motor-axis gear, intergrade gear, wind wheel, slow speed turbine stage gear, high speed level gear, brake disc, intergrade power shift gear, gearshift, gearshift controller.The present invention drives oil hydraulic motor and gearshift by hydraulic system, realizes the respective jiggering function of lower velocity shaft and high speed shaft, realizes the locking of wind wheel; When high speed shaft needs centering, realize the independent jiggering of high speed shaft, solve the acquisition precision problem of the centering data of the high speed shaft brought because of the lower velocity shaft start and stop of jiggering together with high speed shaft, by the impact that the wind regime reducing wind field operates high speed shaft jiggering, improve efficiency and the Security of high speed shaft jiggering operation.The invention solves in the many problems of the difficult and artificial demand of the jiggering of wind energy turbine set, efficiently, safety, laborsaving.

Description

A kind of high low speed reel car device of high-power wind turbine unit and using method thereof
Technical field
The present invention relates to Wind turbines field, particularly a kind of high low speed reel car device of high-power wind turbine unit and using method thereof.
Background technique
On blower fan, what need to use jiggering operation has two situations, and one is need to enter wind wheel, when lock wind wheel lock, in order to pin wind wheel, needs, the hole of wind wheel lock collar and wind wheel lock alignment, at this moment to need jiggering; Two be generator shaft and gearbox shaft alignment degree adjustment time, the high speed shaft of gearbox that needs dish moves Wind turbines rotates together with generator shaft, by the measurement of laser alignment instrument in rotary course, draw the coaxiality error of high speed shaft of gearbox and generator shaft, and adjust the stone bolt of generator, the high speed shaft of the gear-box that the assembling eliminating wind wheel causes and the alignment degree change of generator shaft.Large people from department has obscured the jiggering demand of both of these case at present, the object of the first jiggering is the rotation in order to lower velocity shaft, and the jiggering of the second is the rotation in order to high speed shaft, so the functional decomposition of the jiggering of both of these case, the precision of the jiggering of the second situation can be improved greatly.
Because the object of Wind turbines major part high speed shaft jiggering is in order to laser alignment instrument can measure coaxality data, but after laser alignment instrument often rotates about 60 degree, need to wait and time, until laser alignment instrument just can provide coaxiality error after measuring the data of three angles, as common barring gear does not disconnect the high speed shaft of Wind turbines and lower velocity shaft, because of huge wind wheel quality, each pause will bring the data capture of the influence of vibration laser alignment instrument of high speed shaft, finally affects the coaxial accuracy of high speed shaft of gearbox and generator shaft.
The power of Wind turbines is in the past less, manually can coil the brake disc on moving gear case high speed axis, so major part is to operate the rotation of high speed shaft by the dynamic brake disc of artificial directly dish, along with the increasing of Wind turbines power, it is depended merely on and manually substantially directly can not coil brake disc, the device of existing patent makes a gear into brake disc, engage brake disc gear by extra manual operating device and carry out jiggering, as patent CN201120006645.8 and CN201120006811.4, because its device is the makeshift device increased in the later stage, and be manually-operated, do laborsaving like this, but the bad angle controlling to rotate, also have and improve manually-operated drawback by increasing a motor, as patent CN201120411253.X and CN201110328131.9, its driving mechanism is exposed, easily causes the shortcomings such as personal safety, also the barring gear of useful structure of friction wheel, as patent CN200810220717.1, carries out jiggering by rubber tire and brake disc, if but the pretightening force of its rubber tire is inadequate or excessive, and jiggering can be brought smooth or damage the risk of rubber tire, also have stability when improving jiggering by the braking effort device of hydraulic constant pressure, as the device of patent 201110140499.2, its device can alleviate unstability during jiggering, but how its specification does not realize the description of jiggering.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of high low speed reel car device of high-power wind turbine unit, and it can solve in the jiggering difficulty of wind energy turbine set and the many problem of artificial demand, provides a kind of efficient, safe, labour-saving barring gear.
Technological scheme of the present invention is: the high low speed reel car device of described high-power wind turbine unit comprises main-gear box, external hydraulic power, oil hydraulic motor, motor-axis gear, intergrade gear, wind wheel, slow speed turbine stage gear, high speed level gear, brake disc, intergrade power shift gear, gearshift, gearshift controller; Described oil hydraulic motor is arranged on main-gear box, described external hydraulic power is connected by hydraulic tube with oil hydraulic motor, and described oil hydraulic motor is coaxially connected with motor-axis gear, motor-axis gear and intergrade gears meshing, intergrade gear and speed stage gear mesh, slow speed turbine stage gear connects wind wheel; Described intergrade gear is connected by rotatingshaft with intergrade power shift gear, and intergrade power shift gear connects gearshift, and gearshift is provided with gearshift controller; Described intergrade power shift gear has meshing relation with high speed level gear and can realize engaging and the conversion be separated under gearshift controls, and high speed level gear connects brake disc.
Described intergrade gear and intergrade power shift gear to be arranged on same rotatingshaft and together can to move under gearshift controls, and make intergrade power shift gear and high speed level gear realize engaging and the conversion be separated.
Described intergrade gear and intergrade power shift gear are also flexibly connected by two rotatingshafts, and described intergrade power shift gear can move under gearshift controls, and makes intergrade power shift gear and high speed level gear realize engaging and the conversion be separated.
The using method of the high low speed reel car device of described a kind of high-power wind turbine unit, specific as follows:
When Wind turbines normally works, the fluid of external hydraulic power does not access oil hydraulic motor, and gearshift control device controls gearshift and moves intergrade power shift gear, makes intergrade power shift gear and high speed level gear be in engaging position; Wind wheel drives slow speed turbine stage gear to rotate, and slow speed turbine stage gear drive intergrade gear rotates, and intergrade gear driven intergrade power shift gear rotates, and intergrade power shift gear drives high speed level gear to rotate, and drives brake disc to rotate, and final drive electrical generators rotates; Now because the fluid of external hydraulic power does not access oil hydraulic motor, so intergrade gear driven motor-axis gear rotates, and oil hydraulic motor is driven to dally;
When needs lock wind wheel, the fluid of external hydraulic power is linked in oil hydraulic motor, driving oil hydraulic motor rotates, drive motor-axis gear rotates, and motor-axis gear drives intergrade gear to rotate, and intergrade gear drive slow speed turbine stage gear rotates, and drive wind wheel slow circumvolve, until when the hole of the wind wheel lock collar of wind wheel and wind wheel lock alignment, external hydraulic power stops the driving to oil hydraulic motor, realizes parking during jiggering;
When generator shaft and high speed shaft of gearbox need centering, control gear shifting structure by controller and move intergrade power shift gear, allow intergrade power shift gear not with high speed level gears meshing, intergrade power shift gear and high speed level gear are in separated state, this hour indicator moves brake disc and intergrade power shift gear can not be driven to rotate, and wind wheel also would not be driven to rotate, the dynamic brake disc of dish, carry out the data capture of laser alignment instrument, complete the centering operation of generator shaft and high speed shaft of gearbox.
A kind of high-power wind turbine unit, this high-power wind turbine unit is provided with the high low speed reel car device of above-mentioned high-power wind turbine unit.
The present invention drives oil hydraulic motor and gearshift by hydraulic system, realize the respective jiggering function of lower velocity shaft and high speed shaft, its oil hydraulic motor is arranged on the main-gear box of Wind turbines, coaxial gear is driven to rotate by oil hydraulic motor, the intergrade gear of main-gear box is driven to rotate, final driving lower velocity shaft rotates, the hole of wind wheel lock collar and wind wheel lock is allowed to align, realize the locking of wind wheel, because the gear-box body of Wind turbines carries hydraulic system, so only need increase oil hydraulic motor to realize; Gearshift is arranged on the high speed shaft of gearbox of Wind turbines, when high speed shaft needs centering, intergrade power shift gear and high speed level gear is separated by gearshift, thus realize being separated of high speed shaft and lower velocity shaft, realize the independent jiggering of high speed shaft, solve the acquisition precision problem of the centering data of the high speed shaft brought because of the lower velocity shaft start and stop of jiggering together with high speed shaft, and because the disengaging of lower velocity shaft and high speed shaft, by the impact that the wind regime reducing wind field operates high speed shaft jiggering, improve efficiency and the Security of high speed shaft jiggering operation.
The present invention because of the specific power of its oil hydraulic motor large, installing space is less, can reduce the demand to gear-box installing space, less to the space hold of gear-box, and the connection of external hydraulic power and oil hydraulic motor is a hydraulic tube, so more convenient and more have flexibility; Because of the intergrade band engaging and disengaging gear of its barring gear, achieve the separation of the high slow speed turbine stage jiggering of Wind turbines.The invention solves in the many problems of the difficult and artificial demand of the jiggering of wind energy turbine set, efficiently, safety, laborsaving.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high low speed reel car device of high-power wind turbine unit of the present invention.
In figure: 1, external hydraulic power; 2, oil hydraulic motor; 3, motor-axis gear; 4, intergrade gear; 5, wind wheel; 6, slow speed turbine stage gear; 7 high speed level gears; 8, brake disc; 9, intergrade power shift gear; 10; Gearshift; 11, gearshift controller.
Embodiment
As shown in Figure 1, the high low speed reel car device of the high low speed reel car device high-power wind turbine unit of described high-power wind turbine unit comprises main-gear box, external hydraulic power 1, oil hydraulic motor 2, motor-axis gear 3, intergrade gear 4, wind wheel 5, slow speed turbine stage gear 6, high speed level gear 7, brake disc 8, intergrade power shift gear 9, gearshift 10, gearshift controller 11; Described oil hydraulic motor 2 is arranged on main-gear box, described external hydraulic power 1 is connected by hydraulic tube with oil hydraulic motor 2, described oil hydraulic motor 2 is coaxially connected with motor-axis gear 3, motor-axis gear 3 engages with intergrade gear 4, intergrade gear 4 engages with slow speed turbine stage gear 6, and slow speed turbine stage gear 6 connects wind wheel 5; Described intergrade gear 4 is flexibly connected by two rotatingshafts with intergrade power shift gear 9, and intergrade power shift gear 9 connects gearshift 10, and gearshift 10 is provided with gearshift controller 11; Described intergrade power shift gear 9 has meshing relation with high speed level gear 7 and can realize engaging and the conversion be separated under gearshift 10 controls, and high speed level gear 7 connects brake disc 8.
When blower fan normally works, the fluid of external hydraulic power 1 does not access oil hydraulic motor 2, and gearshift control device device 11 controls
Gearshift 10 moves intergrade power shift gear 9, allows intergrade power shift gear 9 and high speed level gear 7 in engaging position; Wind wheel 5 drives slow speed turbine stage gear 6 to rotate, slow speed turbine stage gear 6 drives intergrade gear 4 to rotate, and intergrade gear 4 drives intergrade power shift gear 9 to rotate, and intergrade power shift gear 9 drives high speed level gear 7 to rotate, and driving brake disc 8 to rotate, final drive electrical generators rotates; Now because the fluid of external hydraulic power 1 does not access oil hydraulic motor 2, so intergrade gear 4 drives motor-axis gear 3 to rotate, and oil hydraulic motor 2 is driven to dally.
When needs lock wind wheel, the fluid of external hydraulic power 1 is linked in oil hydraulic motor 2, realize the rotation of hydraulic actuating fluid pressure motor 2, thus realizing the rotation of motor-axis gear 3, motor-axis gear 3 drives intergrade gear 4 to rotate, and intergrade gear 4 drives slow speed turbine stage gear 6 to rotate, and drive wind wheel 5 slow circumvolve, until when the hole of the wind wheel lock collar of wind wheel and wind wheel lock alignment, external hydraulic power 1 stops the driving to oil hydraulic motor 2, realizes parking during jiggering.
When needing centering because of generator shaft and high speed shaft of gearbox, control gear shifting structure 10 by slide piece controller 11 and move intergrade power shift gear 9, intergrade power shift gear 9 is allowed not engage with high speed level gear 7, this hour indicator moves brake disc 8 can not allow intergrade power shift gear 9 realize rotating, also wind wheel 5 would not be allowed to rotate, also the independent rotation of high speed level is just achieved, now can coil brake disc 8 easily, realize the data capture of laser alignment instrument, complete the centering operation of generator shaft and high speed shaft of gearbox.Doing so avoids the drawback that old-fashioned any barring gear all can allow the wind wheel 5 of slow speed turbine stage rotate when coiling the brake disc of dynamic Wind turbines; The impact being reduced in lower velocity shaft when jiggering stops, on the impact of the data capture of the laser alignment instrument of high speed level, improves the coaxial accuracy of high speed shaft of gearbox and generator shaft.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., be all included within protection scope of the present invention.

Claims (5)

1. the high low speed reel car device of a high-power wind turbine unit, comprise main-gear box, it is characterized in that, also comprise external hydraulic power (1), oil hydraulic motor (2), motor-axis gear (3), intergrade gear (4), wind wheel (5), slow speed turbine stage gear (6), high speed level gear (7), brake disc (8), intergrade power shift gear (9), gearshift (10) and gearshift controller (11); Described oil hydraulic motor (2) is arranged on main-gear box, described external hydraulic power (1) is connected by hydraulic tube with oil hydraulic motor (2), described oil hydraulic motor (2) is coaxially connected with motor-axis gear (3), motor-axis gear (3) engages with intergrade gear (4), intergrade gear (4) engages with slow speed turbine stage gear (6), and slow speed turbine stage gear (6) connects wind wheel (5); Described intergrade gear (4) is connected by rotatingshaft with intergrade power shift gear (9), and intergrade power shift gear (9) connects gearshift (10), and gearshift (10) is provided with gearshift controller (11); Described intergrade power shift gear (9) has meshing relation with high speed level gear (7) and can realize engaging and the conversion be separated under gearshift (10) control, and high speed level gear (7) connects brake disc (8).
2. the high low speed reel car device of high-power wind turbine unit according to claim 1, it is characterized in that, described intergrade gear (4) and intergrade power shift gear (9) to be arranged on same rotatingshaft and together can to move under gearshift (10) control, and make intergrade power shift gear (9) and high speed level gear (7) realize engaging and the conversion be separated.
3. the high low speed reel car device of high-power wind turbine unit according to claim 1, it is characterized in that, described intergrade gear (4) is flexibly connected by two rotatingshafts with intergrade power shift gear (9), described intergrade power shift gear (9) can be mobile under gearshift (10) controls, and makes intergrade power shift gear (9) and high speed level gear (7) realize engaging and the conversion be separated.
4. a using method for the high low speed reel car device of high-power wind turbine unit, is characterized in that,
The high low speed reel car device of described high-power wind turbine unit comprises main-gear box, external hydraulic power, oil hydraulic motor, motor-axis gear, intergrade gear, wind wheel, slow speed turbine stage gear, high speed level gear, brake disc, intergrade power shift gear, gearshift, gearshift controller; Described oil hydraulic motor is arranged on main-gear box, described external hydraulic power is connected by hydraulic tube with oil hydraulic motor, and described oil hydraulic motor is coaxially connected with motor-axis gear, motor-axis gear and intergrade gears meshing, intergrade gear and speed stage gear mesh, slow speed turbine stage gear connects wind wheel; Described intergrade gear is flexibly connected by two rotatingshafts with intergrade power shift gear, and intergrade power shift gear connects gearshift, and gearshift is provided with gearshift controller; Described intergrade power shift gear has meshing relation with high speed level gear and can realize engaging and the conversion be separated under gearshift controls, and high speed level gear connects brake disc;
When Wind turbines normally works, the fluid of external hydraulic power does not access oil hydraulic motor, and gearshift control device controls gearshift and moves intergrade power shift gear, makes intergrade power shift gear and high speed level gear be in engaging position; Wind wheel drives slow speed turbine stage gear to rotate, and slow speed turbine stage gear drive intergrade gear rotates, and intergrade gear driven intergrade power shift gear rotates, and intergrade power shift gear drives high speed level gear to rotate, and drives brake disc to rotate, and final drive electrical generators rotates; Now because the fluid of external hydraulic power does not access oil hydraulic motor, so intergrade gear driven motor-axis gear rotates, and oil hydraulic motor is driven to dally;
When needs lock wind wheel, the fluid of external hydraulic power is linked in oil hydraulic motor, driving oil hydraulic motor rotates, drive motor-axis gear rotates, and motor-axis gear drives intergrade gear to rotate, and intergrade gear drive slow speed turbine stage gear rotates, and drive wind wheel slow circumvolve, until when the hole of the wind wheel lock collar of wind wheel and wind wheel lock alignment, external hydraulic power stops the driving to oil hydraulic motor, realizes parking during jiggering;
When generator shaft and high speed shaft of gearbox need centering, control gear shifting structure by controller and move intergrade power shift gear, allow intergrade power shift gear not with high speed level gears meshing, this hour indicator moves brake disc and intergrade power shift gear can not be driven to rotate, and wind wheel also would not be driven to rotate; The dynamic brake disc of dish, carries out the data capture of laser alignment instrument, completes the centering operation of generator shaft and high speed shaft of gearbox.
5. a high-power wind turbine unit, is characterized in that, described high-power wind turbine unit is provided with the high low speed reel car device of the high-power wind turbine unit according to any one of claims 1 to 3.
CN201310368886.0A 2013-08-22 2013-08-22 A kind of high low speed reel car device of high-power wind turbine unit and using method thereof Expired - Fee Related CN103410683B (en)

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CN107201992A (en) * 2017-07-19 2017-09-26 国电联合动力技术有限公司 Packaged type wind power generating set barring gear and the Wind turbines including the device
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CN113187566B (en) * 2021-05-11 2022-10-21 中国船舶重工集团公司第七0三研究所 Gear box barring gear

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8105638A (en) * 1981-12-15 1983-07-01 Polenko B V Wind turbine with rotor braking flaps - has rods actuating flaps coupled to common brake disc on shaft
CN201334993Y (en) * 2008-12-31 2009-10-28 广东东兴风盈风电设备制造有限公司 Barring gear of high speed plate of gearbox of wind generator
CN201925108U (en) * 2011-01-11 2011-08-10 龙源(北京)风电工程技术有限公司 Special centring and turning tool of wind driver generator
CN201925109U (en) * 2011-01-11 2011-08-10 龙源(北京)风电工程技术有限公司 Turning gear for high-speed shaft of wind generating set
CN102297100A (en) * 2011-09-09 2011-12-28 重庆齿轮箱有限责任公司 Wind power speed-up gear box
CN202300872U (en) * 2011-10-25 2012-07-04 上海电气风电设备有限公司 Turning gear
CN202451374U (en) * 2012-02-15 2012-09-26 三一电气有限责任公司 Turning gear and fan

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8105638A (en) * 1981-12-15 1983-07-01 Polenko B V Wind turbine with rotor braking flaps - has rods actuating flaps coupled to common brake disc on shaft
CN201334993Y (en) * 2008-12-31 2009-10-28 广东东兴风盈风电设备制造有限公司 Barring gear of high speed plate of gearbox of wind generator
CN201925108U (en) * 2011-01-11 2011-08-10 龙源(北京)风电工程技术有限公司 Special centring and turning tool of wind driver generator
CN201925109U (en) * 2011-01-11 2011-08-10 龙源(北京)风电工程技术有限公司 Turning gear for high-speed shaft of wind generating set
CN102297100A (en) * 2011-09-09 2011-12-28 重庆齿轮箱有限责任公司 Wind power speed-up gear box
CN202300872U (en) * 2011-10-25 2012-07-04 上海电气风电设备有限公司 Turning gear
CN202451374U (en) * 2012-02-15 2012-09-26 三一电气有限责任公司 Turning gear and fan

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