CN101947726B - Method and device for disassembling gear box of wind driven generator - Google Patents
Method and device for disassembling gear box of wind driven generator Download PDFInfo
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- CN101947726B CN101947726B CN201010505534A CN201010505534A CN101947726B CN 101947726 B CN101947726 B CN 101947726B CN 201010505534 A CN201010505534 A CN 201010505534A CN 201010505534 A CN201010505534 A CN 201010505534A CN 101947726 B CN101947726 B CN 101947726B
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- forward engine
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Abstract
The invention relates to a method for disassembling a gear box of a wind driven generator, which comprises the following steps of: a, suspending the gear box on a crane arm through a rope; b, loosening an expansion sleeve and a nut on an elastic supporting seat to ensure that the gear box is detachably connected with an underframe of a forward engine room; and c, respectively arranging a hydraulic jack on two sides of an output shaft of a wind wheel, wherein the bottom end of each hydraulic jack is fixed with the underframe of the forward engine room, and the top end is in contact with the gear box. A device for disassembling the gear box of the wind driven generator comprises two hydraulic jacks connected with a hydraulic pump station and is characterized in that the hydraulic jacks are fixedly arranged on a supporting device, top ends of piston rods of the hydraulic jacks are fixedly provided with fixed blocks, and the supporting device comprises a first supporting block, a second supporting block and a connecting shaft. The method and the device can realize the independent disassembly of the gear box during the user period without disassembling the engine room, thereby shortening the maintenance time and lowering the maintenance cost.
Description
Technical field
The present invention relates to a kind of wind-driven generator wheel-box method for dismounting and device, in particular, relate in particular to a kind of hydraulic jack of utilizing and realize wind-driven generator wheel-box method for dismounting and the device of dismantling.
Background technology
Gear-box in the wind power generating set is an important mechanical part, and its major function is that the transmission of power that wind wheel is produced under the wind-force effect is given generator and made it obtain corresponding rotating speeds.The rotating speed of wind wheel is very low, does not far reach the requirement of generator for electricity generation, must be used for by the speedup of gear-box gear pair realizing.Because wind power generating set is installed in places, air port such as high mountain, wilderness, seabeach, island usually, gear-box is subjected to the wind-force effect of irregular break-in varying load and the load impacting of strong gusts of wind, stand the influence of heat, severe cold and the extreme temperature difference throughout the year, the probability that gear-box breaks down during 20 years service life is very big, natural environment of living in is in addition had inconvenient traffic, gear-box is installed in the small space of cat head, in case break down, repairs very difficulty.After gear-box breaks down at present, complete machine producer generally takes the get off mode of depot repair of engine rooms of wind power generators integral hoisting, lifting and freight are very high, therefore be necessary to provide a kind of disassembly equipment to realize the independence dismounting of gear-box at engine room inside, realize the independent lifting and the replacing of gear-box afterwards by hanging device, and do not need the cabin integral hoisting is got off, reduce maintenance cost largely.
Summary of the invention
The present invention provides a kind of hydraulic jack of utilizing to realize the wind-driven generator wheel-box method for dismounting of dismantling in order to overcome the shortcoming of above-mentioned technical problem.
Wind-driven generator wheel-box method for dismounting of the present invention, described gear-box are provided with two gear-box torque arms, and two gear-box torque arms all are fixed on the forward engine room underframe by elastic supporting seat; Described wind wheel output shaft is connected by the swelling cover with gearbox input shaft, and its special feature is that described method for dismounting may further comprise the steps:
A) at first gear-box is suspended on the arm of crane by rope;
B) unclamp nut on swelling cover and the elastic supporting seat, gear-box is disconnected with the forward engine room underframe be connected;
C) in the both sides of wind wheel output shaft a hydraulic jack is set respectively, the direction of motion of hydraulic jack piston rod is identical with the direction of wind wheel output shaft; The bottom of hydraulic jack and forward engine room underframe fix, and the top of hydraulic jack contacts with gear-box;
D) simultaneously two hydraulic jack are suppressed, gear-box is moved to the direction away from the forward engine room underframe;
E) after gear-box and forward engine room underframe are separated, gear-box is left under order separately with crane.
In the step a), after rope was fixed gear-box, not only available crane unloaded gear-box, can also prevent that gear-box from falling accidental fall; Step b) has disconnected being connected of gear-box and forward engine room underframe, and step c) provided the installation method of two hydraulic jack, so that realize outwards moving of gear-box; Can realize that by step d) gear-box moves to the direction away from the forward engine room underframe, can be sling by crane until gear-box.
Wind-driven generator wheel-box method for dismounting of the present invention, the hydraulic jack described in the step c) is by being bolted on the forward engine room underframe.The bottom of hydraulic jack is fixedly installed on the forward engine room underframe, could guarantee like this that hydraulic jack withstands in the process of work to maintain static, and then realize that the stable of gear-box moves.
The present invention provides a kind of hydraulic jack of utilizing to realize the wind-driven generator wheel-box provision for disengagement of dismantling in order to overcome the shortcoming of above-mentioned technical problem.
Wind-driven generator wheel-box provision for disengagement of the present invention, comprise two hydraulic jack that are connected with hydraulic power unit, its special feature is: described hydraulic jack is fixedly installed on the bracing or strutting arrangement, and the top of the piston rod of described hydraulic jack is set with fixed block; Described bracing or strutting arrangement comprises first back-up block, second back-up block and is used to be connected the connecting axle of first back-up block and second back-up block, the bottom surface of described first back-up block is the plane, offers the through hole that matches with the outer surface of hydraulic jack on described second back-up block.Two hydraulic jack are used to realize separating of forward engine room underframe and gear-box; Bracing or strutting arrangement is used to realize being connected of forward engine room underframe and hydraulic jack.The effect of first back-up block on the bracing or strutting arrangement is the support hydraulic pressure jack, and hydraulic jack is through second back-up block.The fixed block that is arranged on the piston rod top can realize to the cooperating of gear-box, increased the contact area of hydraulic jack and gear-box, help reducing the active force between jack and the gear-box.
Wind-driven generator wheel-box provision for disengagement of the present invention also comprises bolt, is provided with the bolt hole that matches with bolt on described first back-up block and second back-up block; In the process of using, by cooperating of bolt and bolt hole, the realization bracing or strutting arrangement is fixed on the forward engine room underframe.By bolt bracing or strutting arrangement is fixed on the forward engine room underframe, has also just realized fixing between hydraulic jack and the forward engine room underframe.
Wind-driven generator wheel-box provision for disengagement of the present invention, the outer face of described fixed block are the plane.The plane is arranged in the outer face of fixed block, not only can realizes good fit with gear-box also can reducing the pressure between fixed block and the gear-box, the service life of useful increase jack.
Wind-driven generator wheel-box provision for disengagement of the present invention, the quantity of described connecting axle are four.By four connecting axles, realize that first back-up block is connected with the firm of second back-up block.
The invention has the beneficial effects as follows: in the wind-driven generator wheel-box method for dismounting of the present invention, at first utilize rope that gear-box and arm of crane are fixed, and then gear-box is connected with the disconnection of forward engine room underframe, protected the security of gear-box effectively; In process to gear-box dismounting, utilize two hydraulic jack to realize separating of gear-box and forward engine room underframe, promptly guaranteed to have enough big power that gear-box is moved, also avoided because the falling of the mobile too fast gear-box that causes; In the wind-driven generator wheel-box provision for disengagement of the present invention, be provided with the bracing or strutting arrangement that matches with hydraulic jack, realized the good fit of hydraulic jack and gear-box and forward engine room underframe; Bracing or strutting arrangement not only can match with hydraulic jack, also is provided with the bolt hole and the bolt that can be fixed on the forward engine room underframe, has realized the fastness of provision for disengagement.Gear-box method for dismounting of the present invention and provision for disengagement can realize between the operating period independence of gear-box is dismantled at wind-driven generator, and not need to dismantle the integral body in generator cabin, have not only shortened maintenance time, but also have reduced maintenance cost.
Description of drawings
Fig. 1 is the structural representation of forward engine room underframe and gear-box;
Fig. 2 is a provision for disengagement of the present invention schematic diagram in use;
Fig. 3 also is a provision for disengagement of the present invention schematic diagram in use;
Fig. 4 is a provision for disengagement of the present invention schematic diagram in use;
Among the figure: 1 forward engine room underframe, 2 bracing or strutting arrangements, 3 hydraulic jack, 4 bolts, 5 swelling covers, 6 elastic supporting seats, 7 gear-box torque arms, 8 first back-up blocks, 9 second back-up blocks, 10 connecting axles, 11 bolts hole, 12 piston rods, 13 fixed blocks, 14 gear-boxes, 15 wind wheel output shafts.
The specific embodiment
Wind-driven generator wheel-box method for dismounting of the present invention, described gear-box are provided with two gear-box torque arms, and two gear-box torque arms all are fixed on the forward engine room underframe by elastic supporting seat; Described wind wheel output shaft is connected by the swelling cover with gearbox input shaft, and its special feature is that described method for dismounting may further comprise the steps: a) at first by rope gear-box is suspended on the arm of crane; B) unclamp nut on swelling cover and the elastic supporting seat, gear-box is disconnected with the forward engine room underframe be connected; C) in the both sides of wind wheel output shaft a hydraulic jack is set respectively, the direction of motion of hydraulic jack piston rod is identical with the direction of wind wheel output shaft; The bottom of hydraulic jack and forward engine room underframe fix, and the top of hydraulic jack contacts with gear-box; D) simultaneously two hydraulic jack are suppressed, gear-box is moved to the direction away from the forward engine room underframe; E) after gear-box and forward engine room underframe are separated, gear-box is left under order separately with crane.
As shown in Figure 1, provided the structure chart of forward engine room underframe and gear-box, method for dismounting of the present invention has been described below in conjunction with Fig. 1.At first gear-box 14 is fixed on the car wall of crane, to guarantee the safety of gear-box by rope; The nut Panasonic on the swelling cover 5 that connects wind wheel output shaft 15 and gearbox input shaft,, like this, just there has not been mechanical connection between gear-box 14 and the forward engine room underframe 1 then connecting the nut Panasonic of gear-box torque arm 7 with elastic supporting seat 6; Then two hydraulic jack 3 are separately positioned on the both sides of wind wheel output shaft, the bottom of hydraulic jack is fixedly installed on the forward engine room underframe by bracing or strutting arrangement 2, the direction of motion that should guarantee the hydraulic jack piston rod is identical with the axis direction of wind wheel output shaft 15, by suppressing hydraulic jack its piston rod is contacted with gear-box; By Hydraulic Station two hydraulic jack are suppressed, ordered about gear-box and move to direction away from the wind wheel output shaft; When gear-box moves to the position that can be sling by crane, with crane it is hung down separately and to get final product.
Fig. 2 and Fig. 3 have provided the user mode figure of handler of the present invention, and Fig. 4 has provided the structure chart of wind-driven generator wheel-box provision for disengagement of the present invention.Provision for disengagement of the present invention comprises that first back-up block 8, second back-up block 9, connecting axle 10, hydraulic jack 3, fixed block 13, the first back-up blocks 8 and second back-up block 9 are two hexahedrons that are parallel to each other, and they are connected by four connecting axles 10.The bottom surface of first back-up block 8 is the plane, so that match with the plane on being arranged on forward engine room underframe 1.Hydraulic jack 3 contacts through second back-up block 9 and with first back-up block 8.The top of the piston rod of hydraulic jack 3 is set with fixed block 13, and the outer surface of fixed block 13 is the plane, so that have larger area to contact with gear-box 14, reduces the pressure between hydraulic jack 3 and the gear-box.On first back-up block 8 and second back-up block 9, offer bolt hole 11, by cooperating of bolt 4 and bolt hole 11, can be fixed on the bracing or strutting arrangement of forming by first back-up block 8, second back-up block 9 and connecting axle 10 2 on the forward engine room underframe 1, also just be equivalent to hydraulic jack 3 has been fixed on the forward engine room underframe 1.
Provision for disengagement of the present invention is in the process of using, should guarantee that forward engine room underframe 1 is provided with the supporting plane that matches with first back-up block 8, the normal of this supporting plane parallels with the axis of wind wheel output shaft 15, the direction of motion of piston rod that so just can guarantee two hydraulic jack 3 is identical with the axial direction of wind wheel output shaft 15, makes gear-box 14 shift out accurately.In the process of using, should guarantee that also the fixed block 13 on the hydraulic jack 3 contacts with gear-box, so that safety shifts out gear-box.
Claims (2)
1. wind-driven generator wheel-box method for dismounting, described gear-box is provided with two gear-box torque arms, and two gear-box torque arms all are fixed on the forward engine room underframe by elastic supporting seat; Described wind wheel output shaft is connected by the swelling cover with gearbox input shaft, it is characterized in that, described method for dismounting may further comprise the steps:
A) at first gear-box is suspended on the arm of crane by rope;
B) unclamp nut on swelling cover and the elastic supporting seat, gear-box is disconnected with the forward engine room underframe be connected;
C) in the both sides of wind wheel output shaft a hydraulic jack is set respectively, the direction of motion of hydraulic jack piston rod is identical with the direction of wind wheel output shaft; The bottom of hydraulic jack and forward engine room underframe fix, and the top of hydraulic jack contacts with gear-box;
D) simultaneously two hydraulic jack are suppressed, gear-box is moved to the direction away from the forward engine room underframe;
E) after gear-box and forward engine room underframe are separated, gear-box is left under order separately with crane.
2. wind-driven generator wheel-box method for dismounting according to claim 1 is characterized in that: the hydraulic jack described in the step c) is by being bolted on the forward engine room underframe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010505534A CN101947726B (en) | 2010-10-13 | 2010-10-13 | Method and device for disassembling gear box of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010505534A CN101947726B (en) | 2010-10-13 | 2010-10-13 | Method and device for disassembling gear box of wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101947726A CN101947726A (en) | 2011-01-19 |
| CN101947726B true CN101947726B (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010505534A Expired - Fee Related CN101947726B (en) | 2010-10-13 | 2010-10-13 | Method and device for disassembling gear box of wind driven generator |
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| Country | Link |
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| CN (1) | CN101947726B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092637B (en) * | 2011-03-07 | 2013-03-27 | 南车株洲电力机车研究所有限公司 | Method for lifting gear boxes of wind generating set |
| CN102357789B (en) * | 2011-10-18 | 2014-07-30 | 中冶京诚工程技术有限公司 | Overhead mounting-dismounting device and method for gearbox of wind driven generator |
| CN102729022B (en) * | 2012-06-15 | 2015-05-06 | 国电联合动力技术(连云港)有限公司 | Device and method for assembling transmission system of large-scale wind generating set |
| CN102689174B (en) * | 2012-06-21 | 2014-05-07 | 济南轨道交通装备有限责任公司 | Device for replacing high-speed shaft of wind turbine gearbox |
| CN105840432B (en) * | 2016-06-03 | 2019-04-09 | 南京安维士传动技术股份有限公司 | A kind of aerial method for replacing the parallel middling speed grade gear of wind turbine gearbox |
| CN107553114B (en) * | 2017-09-05 | 2024-02-20 | 沈阳工业大学 | Online detection and fastening device for bolts of wind generating set |
| CN114571209B (en) * | 2022-04-02 | 2023-08-18 | 博众精工科技股份有限公司 | Automatic assembly module |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7721434B2 (en) * | 2005-07-27 | 2010-05-25 | General Electric Company | Methods and apparatus for replacing objects on horizontal shafts in elevated locations |
| CN201109022Y (en) * | 2007-11-28 | 2008-09-03 | 灵宝市金源矿业有限责任公司 | Device for detaching gears |
| CN101463804B (en) * | 2007-12-21 | 2011-07-06 | 广东明阳风电技术有限公司 | Assembly method for principal shaft and gearbox of large aerogenerator |
| US8298115B2 (en) * | 2008-07-10 | 2012-10-30 | General Electric Company | Wind turbine transmission assembly |
| CN101456126B (en) * | 2008-12-31 | 2010-07-14 | 广东东兴风盈风电设备制造有限公司 | Wind-driven generator wheel-box elastic bearing-axis mounting device |
| CN201483449U (en) * | 2009-09-22 | 2010-05-26 | 北京中能联创风电技术有限公司 | Device for dismounting and mounting elastic support of wind turbine gearbox |
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2010
- 2010-10-13 CN CN201010505534A patent/CN101947726B/en not_active Expired - Fee Related
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| CN101947726A (en) | 2011-01-19 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CNR WIND POWER CO., LTD. Free format text: FORMER OWNER: JINAN RAIL TRAFFIC EQUIPMENT CO., LTD. Effective date: 20140804 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 250022 JINAN, SHANDONG PROVINCE TO: 250101 JINAN, SHANDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140804 Address after: 250101 Century Avenue, Ji'nan high tech Zone, Shandong, No. 3666 Patentee after: CNR Wind Power Co., Ltd. Address before: Huai Village Street Huaiyin District of Ji'nan city of Shandong Province, No. 73 250022 Patentee before: Jinan Rail Traffic Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20191013 |
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| CF01 | Termination of patent right due to non-payment of annual fee |