CN201925109U - Turning gear for high-speed shaft of wind generating set - Google Patents
Turning gear for high-speed shaft of wind generating set Download PDFInfo
- Publication number
- CN201925109U CN201925109U CN2011200068114U CN201120006811U CN201925109U CN 201925109 U CN201925109 U CN 201925109U CN 2011200068114 U CN2011200068114 U CN 2011200068114U CN 201120006811 U CN201120006811 U CN 201120006811U CN 201925109 U CN201925109 U CN 201925109U
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- gear
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- speed shaft
- generation unit
- electricity generation
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Abstract
The utility model relates to a turning gear for a high-speed shaft of a wind generating set, which mainly comprises a planetary gear system, a ratchet spanner and a moment multiplier, wherein the ratchet spanner is connected by the moment multiplier and drives a driving gear of the planetary gear system. The turning gear adopts a sufficient large transmission ratio, so that the requirement on a driving moment is reduced, the operation strength is reduced, and the turning gear is more light and labor-saving to operate; the number of connecting pieces is reduced, so that the turning gear is more convenient to install and is more convenient and rapider to operate; the potential safety hazard of personnel and equipment is eliminated; a vehicle can stop at any time, so that repeated operation of a hydraulic brake is avoided and the debugging efficiency is improved; the debugging precision is improved, the positive transmission speed ratio is large sufficiently, the angular displacement of a coupling is accurate sufficiently, the turning gear has a bidirectional check function, and in the turning process, the coupling can be braked at a required position at any time; the turning gear has the sufficient driving and braking moment; and compared with the manual turning mode, the condition range of the operation wind speed of the turning gear is enlarged.
Description
Technical field
The utility model relates to the jiggering instrument in a kind of wind-powered electricity generation set generator centering process, particularly relates to a kind of barring gear of 1.5MW wind-powered electricity generation unit high speed shaft.
Background technique
In 1.5MW double feed wind power generator group, generator shaft links to each other by a flexible coupling with the gearbox high-speed axle.During the coupling assembling, require to guarantee the coaxality of two axial lines.Excessive coaxiality error will make coupling, transmission shaft and bearing thereof produce additional load, and its result can cause the vibration of machine, the too early wearing and tearing of bearing, the inefficacy of mechanical seal, even the fatigue fracture accident takes place.So the wind-powered electricity generation unit regularly will carry out centering and check work,, prolong generator and gear-box working life to eliminate the coaxiality error that causes in service.
The specific practice of generator centering work is, slowly rotates coupling, by the measurement of laser alignment instrument in rotary course, and diaxon coaxiality error before and after drawing, and by the adjustment to the generator stone bolt, coaxiality error is adjusted in the scope of permission.Existing part blower fan coupling does not design corresponding jiggering instrument, but, by multi agent cooperation, under the situation of unclamping impeller lock and high speed shaft brake, directly drives coupling with hand and rotate during less than the weather of 8m/s at wind speed.There is following defective in said method in practice:
1, the rated torque of the booster engine output shaft of wind-powered electricity generation unit is about 8000NM, even under suitable slurry situation, consider general wind speed effect, if only pressing 1/10th of rated torque calculates, also can produce the moment of torsion of 800NM, be roughly equal to 80KG.M, and because manual jiggering action radius is no more than 0.2M, just can meet the demands so produce 400KG power, though by three people's co-operate also be very the difficulty;
2, because the moment that wind energy produces may be greater than control moment, and wind speed has uncontrollability (turn to, size), the load that the manual jiggering of staff bears is uncertain, therefore when wind direction changes suddenly, personnel often have little time reaction, even reaction to some extent also has little time to lock the hydraulic braking pincers, therefore often can not in time, effectively drive or brake the rotation of coupling;
3, because rotating speed, moment and the wind direction (as becoming the effect of dragging) of flip-flop by original barrier effect, may cause staff to have little time to throw off and be brought in the middle of the rotatable parts, cause staff and other positions injured, under the state that promptly changes of the wind comes from, originally the main shaft under the state of rest also can start suddenly, causes peripheral operating personnel's injury, therefore, operator's safety can not get effective guarantee;
4, because centering instrument generating laser one end is fixed on the gearbox high-speed axle brake disc, when coupling rotates when not controlled at random, generating laser also is easy to occur the phenomenon damaged with the braking mechanism collision;
5, debugging the state that needs is: when the needs jiggering, should under operator's driving, realize required angular displacement steadily, accurately with required angular velocity, when not needing to adjust, no matter no matter how the torque direction and the size of answering load how to act on i.e. wind energy generation change, coupling all is in the lock state, and because water brake control has certain hysteresis quality, the positional accuracy of jiggering can't be guaranteed.
As mentioned above, how founding a kind of barring gear of wind-powered electricity generation unit high speed shaft of new structure of safe, simple to operate, accurate positioning, is one of important subject of current related domain.
The model utility content
The technical problems to be solved in the utility model provides a kind of barring gear of wind-powered electricity generation unit high speed shaft, makes its safe, simple to operate, accurate positioning.
For solving the problems of the technologies described above, the utility model is researched and developed a kind of barring gear of wind-powered electricity generation unit high speed shaft, mainly comprises planetary gear train, ratchet wrench and moment multiplier, and wherein: ratchet wrench connects and drive the actuation gear of planetary gear train by the moment multiplier.
As a kind of improvement of the present utility model, it also comprises two-way check free wheel device, the input end of this two-way check free wheel device and the end of ratchet wrench coupling, and output terminal is connected with the input end of moment multiplier.
Described ratchet wrench end is the square toes structure, and the input end of two-way check free wheel device leaves the square hole that is complementary with the ratchet wrench end construction.
Described planetary gear train comprises actuation gear, transition gear and the gearwheel of engagement successively.
Described planetary gear train also comprises the planet wheel arm that actuation gear, transition gear and gearwheel are installed.
Described gearwheel is provided with the constraint groove, is embedded with center ring in the constraint groove, and center ring comprises first center ring and second center ring, and first center ring and second center ring all are fixed on the planet wheel arm.
Described planet wheel arm also is fixedly connected with the countertorque supporting leg.
Described countertorque supporting leg bottom is provided with the adjustment screw rod.
Described gearwheel is that two and half gears assemble.
The arm of force of described ratchet wrench is 500-1000mm, and the modulus of actuation gear is 6, the auxiliary driving ratio is 4.4, and the velocity ratio of moment multiplier is 1: 17, rated torque 3500NM.
After adopting such structure, the utility model has following advantage at least:
1, by the cooperation of small gear and gearwheel, adopts enough big velocity ratio, reduced requirement, alleviated operation intensity, make operation light more laborsaving driving moment;
2, adopt planetary gear structure, guarantee that the accuracy of mesh of gear pair is good, reduced number of connecting pieces, install more conveniently, operate simpler;
3, the person and device security hidden danger have been eliminated;
But the multi-pass operation of hydraulic brake has been removed in 4 This vehicle stops frequently from, has improved debugging efficiency;
5, improved adjustment accuracy, the forward transmission speed ratio is enough big, and the coupling angular displacement is enough accurate, and has two-way check function, can be at any time with the position of coupling braking at needs during jiggering;
6, possess abundant driving and braking moment, compare, enlarged operation wind friction velocity scope with manual jiggering.
Description of drawings
Above-mentioned only is the general introduction of technical solutions of the utility model, and for can clearer understanding technological means of the present utility model, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the structural representation of the barring gear of the utility model wind-powered electricity generation unit high speed shaft.
Fig. 2 is the reverse geometry schematic representation of Fig. 1.
Embodiment
See also Fig. 1, shown in Figure 2, the barring gear of the utility model wind-powered electricity generation unit high speed shaft mainly comprises with the electric machine main shaft being the planetary gear train and the accessory structure of reference for assembling, for example ratchet wrench, moment multiplier 3 and two-way check free wheel device 2.
Wherein, planetary gear train comprise successively engagement actuation gear 11, transition gear 12, gearwheel 13, the planet wheel arm 14 of said gear is installed and is fixed on countertorque supporting leg 15 on the planet wheel arm.
The setting of transition gear 12 is in order to guarantee the required radius of laser rotation.
Easy for installation for the scene, the structure that gearwheel 13 can adopt two and half gears to assemble can be under the condition of not dismounting coupling, finishes connecting of gearwheel 13 and wind-powered electricity generation unit coupling flange, has alleviated installation single-piece weight simultaneously.Can under the prerequisite of proof strength rigidity, machine away unnecessary material in addition, with further weight reduction.
In addition, also the constraint groove can be set on gearwheel 13, be embedded with center ring in the constraint groove.Center ring 16 comprises first center ring and second center ring, and first center ring and second center ring are fixed and connected as one by the planet wheel arm, constitutes the constraint of planet wheel revolute pair, by the fixing planet wheel of planet wheel arm 14, the accuracy of mesh of assurance train.
Planet wheel arm 14 is fundamental parts of planetary gear train, also has the function that multiplier counter-force pawl supports installation, 15 installations of countertorque supporting leg, connects two halves center ring 16 simultaneously concurrently.
Countertorque supporting leg 15 bottoms are provided with adjusts screw rod 17, to adapt to different installation requirements, for multiplier provides effective counter-force fulcrum.
The ratchet wrench end is a square toes structure as shown in the figure.
Two-way check free wheel device 2 is in order to produce reliable braking moment, and its input end leaves the square hole that is complementary with the ratchet wrench end construction, and output terminal is connected with the input end of moment multiplier 3.When manual drives, coupling can be intended to forward or reverse by the operator; After driving force removed, this device was in the lock state automatically to guarantee the braking of coupling.
The output terminal of moment multiplier 3 is fixedlyed connected by the square toes square hole with actuation gear 11.
During assembling, can use the hexagon socket head cap screw of 6 M20 gearwheel 13 to be fixed on the generator shaft end flange mm of its unit
2The shearing stress of area is 300MPa, and single bolt area is 200mm
2The shearing force that can bear is 60000N.Actuation gear is totally 6 fixing bolts, and the shearing force of intensity verification should be 360000N, is that 0.1m calculates by acting force arm, and it is 36000Nm that the fixing bolt of 6 M20 can bear moment of torsion altogether, satisfies the torque demand of the 15000Nm of design.
During operation, operator move ratchet wrench, moment of torsion is passed to two-way check clutch 2, by the cooperation of coupling shaft, connecting sleeve square toes square hole, moment is passed to moment multiplier 3, and the moment after moment multiplier 3 will amplify is afterwards passed to actuation gear 11, actuation gear 11 is passed to transition gear 12, transition gear 12 is passed to gearwheel 13 by 4.4 no-load voltage ratio, thereby moment of torsion is passed to the main shaft of generator set the most at last, finishes the driving to motor shaft.In the time of positive direction actuation, counter-force is passed to transition gear 12, actuation gear 11, planet wheel arm 14 from gearwheel 13 successively, reaches ground by countertorque supporting leg 15 at last.
The utility model adopts ratchet wrench to drive, and considers the restriction of operating space, and the ratchet wrench arm of force is preferably 500-1000mm; System's resultant gear ratio is 75 (auxiliary driving of actuation gear is than preferred 4.4, and the velocity ratio of moment multiplier and ratchet wrench is 1: 17, rated torque 3500NM), and under Maximum Torque (8000Nm) condition, the moment that manually needs to drive is about 200N.
The modulus of actuation gear 11 is designed to 6, and derivation is as follows:
Centre distance a=294mm,
Modulus m=0.02*294=5.88mm
Get M=6mm.
Calculate according to flexural strength, the modulus of actuation gear 11 should be able to satisfy:
Wherein, T
1Rated torque 3500N.M (coupling Maximum Torque 15000Nm) for the actuation gear transmission; Loading coefficient K is taken as 1.6; φ m is a coefficient of facewidth; φ a=b/a=0.1 is pressed in the primary election of b, for weight reduction φ a gets minimum value, and b=30mm, φ m=b/m=30/6=5; Actuation gear number of teeth Z
1=18; Form factor Y
F=2.91; The bending fatigue limit stress б of Hardened And Tempered Steel
FPBe 150Mpa (hardness is made as HB150).The check modulus is M=1.341, and amplifying 20% is M '=1.2M=1.61＜6mm (less than reference value), and it is qualified to design.
The utility model adopts planetary wheeling mechanism and the design of half gear structure, and according to the structural feature of mounting point, the coupling actuation gear adopts the processes of line cutting to become two parts symmetrical.Corresponding loss of weight measure and processing are taked in the transportation and the installation of device for convenience when design, with the Weight control of equipment in 50kg.
During installation, consider the structural feature and the spatial constraints of coupling unit, the actuation gear installation position selection of the utility model jiggering instrument is located at coupling flange dish (generating pusher side), can use the original bolt hole of flange plate (M20*14) and fix.
Maximum Torque when impeller is driven oar under the specified generated output is 8000Nm, and the Maximum Torque load of jiggering drive unit design should satisfy the requirement of strength of this torque value; Under the situation of blade feathering, its wind-force torque load actual value is no more than 1/10th of rated torque.When the main shaft loading moment is 4000NM (be made as booster engine rated torque half), the manual input torque of the utility model only is 45NM, and the forward transmission speed ratio is big (being designed to 17X4.4=75) enough, can make driving moment greater than wind energy moment.
The barring gear of the utility model wind-powered electricity generation unit high speed shaft, guaranteed the relative positional accuracy of actuation gear 11 with gearwheel 13, the speed reducer that can adapt to changeable field condition, plurality of specifications and generator, different on-the-spot mounting structure etc., adopt planetary gear train and counter torque structure, guarantee the train accuracy of mesh, improved the manufacturing assembly performance.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection domain of the present utility model.
Claims (10)
1. the barring gear of a wind-powered electricity generation unit high speed shaft is characterized in that mainly comprising planetary gear train, ratchet wrench and moment multiplier, wherein:
Ratchet wrench connects and drives the actuation gear of planetary gear train by the moment multiplier.
2. the barring gear of wind-powered electricity generation unit high speed shaft according to claim 1, it is characterized in that also comprising two-way check free wheel device, the input end of this two-way check free wheel device and the end of ratchet wrench coupling, output terminal is connected with the input end of moment multiplier.
3. the barring gear of wind-powered electricity generation unit high speed shaft according to claim 2 is characterized in that described ratchet wrench end is the square toes structure, and the input end of two-way check free wheel device leaves the square hole that is complementary with the ratchet wrench end construction.
4. the barring gear of wind-powered electricity generation unit high speed shaft according to claim 1 is characterized in that described planetary gear train comprises actuation gear, transition gear and the gearwheel of engagement successively.
5. the barring gear of wind-powered electricity generation unit high speed shaft according to claim 4 is characterized in that described planetary gear train also comprises the planet wheel arm that actuation gear, transition gear and gearwheel are installed.
6. the barring gear of wind-powered electricity generation unit high speed shaft according to claim 5, it is characterized in that described gearwheel is provided with the constraint groove, be embedded with center ring in the constraint groove, center ring comprises first center ring and second center ring, and first center ring and second center ring all are fixed on the planet wheel arm.
7. the barring gear of wind-powered electricity generation unit high speed shaft according to claim 5 is characterized in that described planet wheel arm also is fixedly connected with the countertorque supporting leg.
8. the barring gear of wind-powered electricity generation unit high speed shaft according to claim 7 is characterized in that described countertorque supporting leg bottom is provided with the adjustment screw rod.
9. the barring gear of wind-powered electricity generation unit high speed shaft according to claim 1 is characterized in that described gearwheel is that two and half gears assemble.
10. according to the barring gear of each described wind-powered electricity generation unit high speed shaft among the claim 1-9, the arm of force that it is characterized in that described ratchet wrench is 500-1000mm, the modulus of actuation gear is 6, the auxiliary driving ratio is 4.4, and the velocity ratio of moment multiplier is 1: 17, rated torque 3500NM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200068114U CN201925109U (en) | 2011-01-11 | 2011-01-11 | Turning gear for high-speed shaft of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200068114U CN201925109U (en) | 2011-01-11 | 2011-01-11 | Turning gear for high-speed shaft of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925109U true CN201925109U (en) | 2011-08-10 |
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ID=44428961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200068114U Expired - Fee Related CN201925109U (en) | 2011-01-11 | 2011-01-11 | Turning gear for high-speed shaft of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925109U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410683A (en) * | 2013-08-22 | 2013-11-27 | 南车株洲电力机车研究所有限公司 | High and low speed shaft turning gear of high power wind generation set and using method thereof |
| CN105201569A (en) * | 2015-09-01 | 2015-12-30 | 保定先奇电力设备技术有限公司 | Electromechanical turning gear for steam turbine turning gear ratchet wheel |
| CN105736137A (en) * | 2016-04-08 | 2016-07-06 | 阳江核电有限公司 | Diesel engine turning tool |
| CN105729872A (en) * | 2016-03-25 | 2016-07-06 | 北京新龙立科技有限公司 | Turning gear of tablet press |
| CN108194287A (en) * | 2018-02-09 | 2018-06-22 | 国电联合动力技术有限公司 | A kind of packaged type wind power generating set cranking system and jiggering method |
| CN108869190A (en) * | 2018-05-24 | 2018-11-23 | 太原重工股份有限公司 | Electric barring equipment for wind power generating set |
| CN109973327A (en) * | 2017-12-28 | 2019-07-05 | 江苏金风科技有限公司 | The self checking method and device of generator amature hydraulic control cranking system |
| CN110360057A (en) * | 2019-07-30 | 2019-10-22 | 上海电气风电集团有限公司 | A kind of wind power generating set single blade lifting barring gear and its hanging method |
| CN111692317A (en) * | 2020-06-16 | 2020-09-22 | 广州珠江天然气发电有限公司 | Manual barring gear |
| CN113567150A (en) * | 2021-08-02 | 2021-10-29 | 陕西正一机电工程有限公司 | Novel efficient shafting jigger assembly and torsion detection platform device and use method |
| CN113803161A (en) * | 2021-10-20 | 2021-12-17 | 中广核核电运营有限公司 | Turning tool |
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2011
- 2011-01-11 CN CN2011200068114U patent/CN201925109U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410683B (en) * | 2013-08-22 | 2015-11-11 | 南车株洲电力机车研究所有限公司 | A kind of high low speed reel car device of high-power wind turbine unit and using method thereof |
| CN103410683A (en) * | 2013-08-22 | 2013-11-27 | 南车株洲电力机车研究所有限公司 | High and low speed shaft turning gear of high power wind generation set and using method thereof |
| CN105201569A (en) * | 2015-09-01 | 2015-12-30 | 保定先奇电力设备技术有限公司 | Electromechanical turning gear for steam turbine turning gear ratchet wheel |
| CN105729872A (en) * | 2016-03-25 | 2016-07-06 | 北京新龙立科技有限公司 | Turning gear of tablet press |
| CN105736137A (en) * | 2016-04-08 | 2016-07-06 | 阳江核电有限公司 | Diesel engine turning tool |
| US11698055B2 (en) | 2017-12-28 | 2023-07-11 | Jiangsu Goldwind Science & Technology Co., Ltd. | Self-inspection method and device for hydraulic control turning system of generator rotor |
| CN109973327A (en) * | 2017-12-28 | 2019-07-05 | 江苏金风科技有限公司 | The self checking method and device of generator amature hydraulic control cranking system |
| CN108194287A (en) * | 2018-02-09 | 2018-06-22 | 国电联合动力技术有限公司 | A kind of packaged type wind power generating set cranking system and jiggering method |
| CN108194287B (en) * | 2018-02-09 | 2023-12-26 | 国电联合动力技术有限公司 | Movable wind generating set turning system and turning method |
| CN108869190A (en) * | 2018-05-24 | 2018-11-23 | 太原重工股份有限公司 | Electric barring equipment for wind power generating set |
| CN108869190B (en) * | 2018-05-24 | 2020-09-04 | 太原重工股份有限公司 | Electric barring gear for wind generating set |
| CN110360057A (en) * | 2019-07-30 | 2019-10-22 | 上海电气风电集团有限公司 | A kind of wind power generating set single blade lifting barring gear and its hanging method |
| CN110360057B (en) * | 2019-07-30 | 2020-11-13 | 上海电气风电集团股份有限公司 | Single-blade hoisting barring device of wind generating set and hoisting method thereof |
| CN111692317A (en) * | 2020-06-16 | 2020-09-22 | 广州珠江天然气发电有限公司 | Manual barring gear |
| CN113567150A (en) * | 2021-08-02 | 2021-10-29 | 陕西正一机电工程有限公司 | Novel efficient shafting jigger assembly and torsion detection platform device and use method |
| CN113567150B (en) * | 2021-08-02 | 2024-04-16 | 陕西正一机电工程有限公司 | Novel efficient shafting jigger assembly and torque detection platform device and application method |
| CN113803161A (en) * | 2021-10-20 | 2021-12-17 | 中广核核电运营有限公司 | Turning tool |
| CN113803161B (en) * | 2021-10-20 | 2022-07-15 | 中广核核电运营有限公司 | Jigger tool |
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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: 20110810 Termination date: 20140111 |