CN113909842B - Assembly method of wind turbine generator gearbox - Google Patents
Assembly method of wind turbine generator gearbox Download PDFInfo
- Publication number
- CN113909842B CN113909842B CN202111264654.1A CN202111264654A CN113909842B CN 113909842 B CN113909842 B CN 113909842B CN 202111264654 A CN202111264654 A CN 202111264654A CN 113909842 B CN113909842 B CN 113909842B
- Authority
- CN
- China
- Prior art keywords
- gearbox
- assembling
- input shaft
- input
- driving wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 14
- 230000001360 synchronised effect Effects 0.000 description 13
- 238000013461 design Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
Abstract
The invention discloses an assembling method of a wind turbine gearbox, which comprises the steps of assembling a front shaft sleeve of an input shaft, assembling an input stage driven wheel sleeve, assembling a rear shaft sleeve of the input shaft, assembling a secondary gear pair, synchronously adjusting the secondary gear pair, installing a tertiary gear pair, synchronously adjusting the tertiary gear pair, disassembling all tools and finishing the final assembly of the gearbox. The assembling method of the wind turbine generator gearbox can be used for the novel gearbox with a multi-split parallel transmission structure, is also suitable for assembling similar structures, and solves the problem that the novel wind turbine gearbox is not suitable for a ready-made assembling method due to a brand-new structure.
Description
Technical Field
The invention relates to the technical field of assembly of transmission chain components in a wind generating set, in particular to an assembly method of a wind generating set gear box.
Background
The wind turbine generator is mainly installed in severe environments such as desert, Gobi, high mountains or ocean, the engine room is located at the top end of the tower, installation and maintenance are difficult, and the engine room of the wind turbine generator is required to be light in weight and high in reliability in order to reduce installation difficulty and simplify maintenance work and development cost. Wherein the unit driving chain plays decisive role to cabin weight and reliability, and the driving chain includes main shaft, main shaft bearing, bearing frame, gear box, shaft coupling etc. and the gear box is wherein the most critical part.
In the traditional wind turbine generator transmission chain at present, the requirements of compact structure, light weight and high power density are realized by combining planetary transmission and parallel transmission of a gear box, wherein the planetary transmission is a main structure. As the power of the generator set is increased more and more, the existing planetary plus parallel stage and multistage planetary speed-increasing gear box structural design is difficult to meet the requirements of further reducing the weight cost and improving the reliability of a transmission chain of the wind turbine generator set. Therefore, the multi-split parallel transmission gear box with the fused main shaft design is used for the high-power wind turbine generator, and due to the fact that the multi-split parallel transmission gear box with the fused main shaft design is used, a transmission chain does not comprise a main shaft, a main shaft bearing, a bearing seat, a coupling and other parts, the weight of the generator can be greatly reduced, the cost of the generator can be reduced, the installation and debugging difficulty can be simplified, and the reliability can be improved.
The assembly requirement of the novel gearbox is completely different from that of the traditional gearbox mainly adopting a planetary structure, the original mature assembly method cannot be used for assembling the novel gearbox, a synchronous adjustment structure is designed for realizing the load balancing requirement of the novel gearbox in the power splitting and converging processes, and the load balancing requirement is realized by adopting the assembly adjustment synchronous structure.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an assembling method of a wind turbine gearbox, which can be suitable for a novel gearbox of a multi-split parallel transmission main shaft fusion design.
In order to achieve the purpose, the invention is realized by the following technical scheme: an assembling method of a wind turbine gearbox comprises the following steps:
s1: assembling an input shaft front shaft sleeve, wherein the input shaft front shaft sleeve comprises an input shaft and an input stage driving wheel, sleeving a box body of the gearbox into the input shaft, connecting the box body with the front end of the input shaft, sleeving the input stage driving wheel on the input shaft, and fixedly connecting the input stage driving wheel with the input shaft;
s2: assembling an input stage driven wheel part sleeve, wherein the input stage driven wheel part sleeve comprises a plurality of input stage driven wheels, the input stage driven wheels are sequentially arranged in a gear box, are arranged around the input stage driving wheel in the circumferential direction and are meshed with the input stage driving wheel;
s3: assembling an input shaft rear shaft part sleeve, wherein the input shaft rear shaft part sleeve comprises an input shaft rear support bearing and a rear bearing support frame, and the rear end of the input shaft is connected with a gearbox body;
s4: assembling a secondary gear pair, wherein the secondary gear pair comprises a plurality of secondary driving wheels and secondary driven wheels, the plurality of secondary driving wheels and the plurality of secondary driven wheels are respectively arranged in the gear box, the secondary driving wheels are correspondingly connected with the input stage driven wheels one by one, and every two adjacent secondary driving wheels are meshed with one secondary driven wheel to form a gear meshing pair;
s5: the input shaft is fixed relative to a gearbox body by using a first tool, the secondary driven wheel is fixed relative to the gearbox body by using a second tool, a third tool and a fourth tool are respectively fixed on the input stage driven wheel and the secondary driving wheel, acting force is applied to the input stage driven wheel and the secondary driving wheel in the gear meshing pair, and the force application direction is consistent with the force application direction of the gearbox in the working state;
s6: installing a three-level gear pair, wherein the three-level gear pair comprises a three-level driving wheel, a three-level driven wheel and an output shaft, the three-level driving wheels are respectively installed in the gear box and are in one-to-one correspondence connection with the two-level driven wheel, and the three-level driven wheel and the output shaft are assembled into an output assembly and are installed among the three-level driving wheels and are meshed with each other;
s7: the third-stage gear pair is synchronously adjusted, the input shaft is fixed relative to the gearbox body by using a first tool, the output shaft is fixed relative to the gearbox body by using a fifth tool, the third tool and a seventh tool are respectively fixed on hubs of the third-stage driving wheel and the third-stage driving wheel, acting force is applied to the hubs of the third-stage driving wheel and the third-stage driving wheel, and the force application direction is consistent with the force application direction of the gearbox in a working state;
s8: and (5) dismantling all the tools and finishing the final assembly of the gearbox.
Further, the input shaft front shaft sleeve further includes an input shaft front support bearing, and step S1 specifically includes: the method comprises the steps of hot-assembling an inner ring of an input shaft front support bearing at the front end of an input shaft, press-assembling an outer ring of the input shaft front support bearing into a corresponding shaft hole of a gearbox box body, sleeving the gearbox box body into the input shaft, enabling the outer ring of the input shaft front support bearing to be in contact with the inner ring, sleeving the input stage driving wheel on the input shaft, and fixing the input stage driving wheel through bolts.
Further, step S1 is specifically: the input shaft is vertically placed, the gearbox body is vertically hoisted, an opening of an outer ring of a support bearing provided with the input shaft is downward, the input shaft is sleeved, and the input stage driving wheel is horizontally hoisted and sleeved into the input shaft.
Further, step S2 is specifically: the input stage driven wheel is vertically placed, a front bearing of the input stage driven wheel is hot-mounted, the input stage driven wheel is vertically hoisted and sequentially installed in the gear box, and a rear bearing of the input stage driven wheel is sequentially installed.
Further, step S3 is specifically: and the outer ring of the rear support bearing of the input shaft is pressed into a corresponding shaft hole of the rear bearing support frame, the rear bearing support frame is arranged in the gearbox body and fixed through bolts, and the inner ring of the rear support bearing of the input shaft is hot-arranged at the rear end of the input shaft and fixed through bolts.
Further, step S4 is specifically: and hot-assembling the bearing inner ring assemblies of the secondary driving wheel and the secondary driven wheel to the shaft diameters at two sides, press-assembling the outer ring assemblies into corresponding bearing holes of the gearbox body, and vertically assembling the secondary driving wheel and the secondary driven wheel into the gearbox body respectively.
Further, step S5 is specifically: two adjacent second-stage driving wheels are meshed with one second-stage driven wheel to form a group of gear meshing pairs, a third tool is fixed on the input-stage driven wheel, a hydraulic cylinder is used for applying acting force to the three tools in the gear meshing pairs, a fourth tool is fixed on the input-stage driven wheel, and the hydraulic cylinder is used for applying acting force to the fourth tool of the two adjacent gear meshing pairs.
Further, step S6 is specifically: and hot-assembling the bearing inner ring of the third-stage driving wheel, assembling the outer ring of the third-stage driving wheel into the gearbox body, sequentially and vertically assembling the plurality of third-stage driving wheels into the gearbox body, and vertically assembling the output assembly between the plurality of third-stage driving wheels.
Further, step S7 is specifically: fixing a tool six on the third-stage driving wheel, fixing a tool seven on a hub of the third-stage driving wheel, and applying acting force to the tool six and the tool seven by using a hydraulic cylinder.
Further, step S8 is specifically: and after all the tools are disassembled, fixing the three-stage driving wheel and the hub thereof through a connecting bolt, assembling a gearbox body, and installing the bearing of the output shaft.
The assembling method of the wind turbine gearbox has the beneficial effects that:
(1) the novel gear box with the multi-split parallel transmission structure can be used for assembling similar structures, and the problem that the novel wind power gear box is not suitable for a ready-made assembling method due to a brand-new structure is solved.
(2) The method of assembling and adjusting during final assembly is adopted, errors influencing the uniform load of the gear pair are concentrated on the synchronous adjusting structure to be eliminated, the design precision requirement of related parts in the novel wind power gearbox can be relaxed, and the difficulty in part processing is reduced; and because the precision requirement is reduced, the selection range of the machine tool can be expanded, and the processing cost is reduced.
(3) The synchronous adjustment method of the secondary gear pair is simple and easy to operate, can quickly eliminate errors, adopts grouping sequence operation, has simple corresponding tool structure and light weight, is clear and concise in operation process, easy to master, good in adjustment effect and short in operation time, can completely eliminate accumulated errors, enables the secondary gear pair to be in a good contact state, and improves reliability.
(4) The synchronous adjustment method of the three-level gear pair simplifies the structural design of the rear box body and eliminates the damage of bearing disassembly and assembly, the adjustment is completed by fixing the gear pair with the tool bearing by the box body and the tool after the tool is adopted, the tool is disassembled after the adjustment is completed to complete cleaning and bolt fastening, and the rear box body and the bearing assembly are installed, so that the structural design of the rear box body can be simplified, the strength of the rear box body is improved, the damage risk of repeated disassembly and assembly of the bearing is also avoided, the hidden danger is eliminated, and the reliability is improved.
(5) The whole process adopts vertical assembly, the assembly component body does not need to move, turn over in the middle, turn around and the like, the operation is simplified, the assembly difficulty is reduced, and the assembly efficiency and the assembly safety are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a block diagram of a gearbox of a method of assembling a wind turbine gearbox according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a gearbox of the method of assembling a wind turbine gearbox of FIG. 1;
FIG. 3 is a block diagram of an input stage gear of the gearbox of the method of assembling a wind turbine generator gearbox of FIG. 1;
FIG. 4 is a block diagram of a secondary gear pair of the gearbox of the method of assembling a wind turbine generator gearbox illustrated in FIG. 1;
FIG. 5 is a schematic view of parallel axes of a secondary driving wheel and an input stage driven wheel of the gearbox of the method of assembling a wind turbine gearbox shown in FIG. 1;
FIG. 6 is a schematic view of the synchronous adjustment of the secondary gear pair of the gearbox of the method of assembling a wind turbine gearbox as illustrated in FIG. 4;
FIG. 7 is a schematic view of a second tooling of the assembling method of the wind turbine gearbox shown in FIG. 6;
FIG. 8 is a schematic view of a third tooling of the assembling method of the gearbox of the wind turbine generator set shown in FIG. 6;
FIG. 9 is a schematic view of a fourth tooling for the method of assembling the gearbox of the wind turbine generator shown in FIG. 6;
FIG. 10 is a block diagram of a tertiary gear pair of the gearbox of the method of assembling a wind turbine generator gearbox illustrated in FIG. 1;
FIG. 11 is a schematic view of a tertiary drive wheel and hub of the gearbox of the method of assembling a wind turbine generator gearbox of FIG. 1;
FIG. 12 is a schematic view of the synchronous adjustment of the tertiary gear pair of the gearbox for the method of assembling the wind turbine gearbox illustrated in FIG. 10;
FIG. 13 is a schematic view of a tool V of the assembling method of the gearbox of the wind turbine generator set shown in FIG. 12;
FIG. 14 is a schematic diagram of a rear tooling box body of a tooling V of the assembling method of the wind turbine gearbox shown in FIG. 12;
FIG. 15 is a schematic view of a tool VI of the method of assembling the gearbox of the wind turbine generator shown in FIG. 12;
FIG. 16 is a schematic diagram of a tooling seven for the method of assembling the gearbox of the wind turbine generator shown in FIG. 12;
reference numerals:
10-a front box body, 11-a first middle box body, 12-a second middle box body, 13-a third middle box body and 14-a rear box body;
20-input shaft, 201-input shaft front support bearing, 202-input shaft rear support bearing, 203-rear bearing support frame, 21-input stage driving wheel, 22-input stage driven wheel, 221-input stage driven wheel front bearing, 222-input stage driven wheel rear bearing and 223-input stage driven wheel parallel shaft;
30-secondary gear pair, 31-secondary driving wheel, 32-secondary driven wheel and 321-secondary driven wheel parallel shaft;
40-three-stage gear pair, 41-three-stage driving wheel, 411-wheel hub, 42-three-stage driven wheel, 43-output shaft and 44-bearing seat.
51-first tool, 52-second tool, 521-connecting ring, 522-fan-shaped plate, 53-third tool, 531-third vertical plate, 532-third bottom plate, 54-fourth tool, 541-fourth vertical plate, 542-fourth base, 55-fifth tool, 551-cylinder, 552-top plate, 553-fifth bottom plate, 554-rear tool box, 555-baffle, 556-output shaft bearing seat, 557-hub bearing seat, 558-fifth base, 56-sixth tool, 561-sixth vertical plate, 562-sixth base, 57-seventh tool, 571-seventh vertical plate, 572-seventh base and 58-hydraulic cylinder.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1 to 16, the present invention provides an assembling method of a wind turbine gearbox, which is used for assembling a multi-split parallel transmission novel gearbox, and comprises the steps of assembling an input shaft front shaft sleeve, assembling an input stage driven wheel sleeve, assembling an input shaft rear shaft sleeve, assembling a secondary gear pair 30, synchronously adjusting a secondary gear pair 30, installing a tertiary gear pair 40, synchronously adjusting a tertiary gear pair 40, disassembling all tools, and completing the final assembly of the gearbox.
Specifically, the structure of the gearbox is shown in fig. 1 and 2, and the assembling steps of the gearbox specifically include:
s1, assembling the front shaft sleeve of the input 20. As shown in fig. 1 and 3, the input shaft portion front bushing includes an input shaft 20, an input stage driving pulley 21, and an input shaft front support bearing 201, the input shaft 20 is vertically placed, an inner ring assembly of the input shaft front support bearing 201 is thermally mounted on a front end of the input shaft 20, and an outer ring assembly thereof is pressed into a corresponding shaft hole of the front case 10. The front box body 10 is turned over, and the outer ring assembly of the input stage driven wheel front bearing 221 is pressed into the corresponding bearing hole of the front box body 10, wherein the position is totally 8 in the embodiment and corresponds to 8 input stage driven wheels 22. The front box body 10 is vertically hoisted, an opening of the outer ring of the front support bearing 201 provided with the input shaft faces downwards, the front support bearing 201 is slowly sleeved on the input shaft 20 until the outer ring of the front support bearing 201 of the input shaft contacts with the inner ring assembly, then the input stage driving wheel 21 is horizontally hoisted, sleeved on the middle positioning step of the input shaft 20 and fixed through bolts.
S2, assembling the input stage driven wheel 22 sleeve. The input stage driven wheel 22 portion includes 8 input stage driven wheels 22 that distribute evenly around input shaft 20 circumference, and all mesh with input stage action wheel 21. The inner ring of the input stage driven wheel front bearing 221 is thermally installed at the shaft end of the input stage driven wheel 22, 8 input stage driven wheels 22 are vertically hoisted in sequence, the inner ring of the input stage driven wheel front bearing 221 is installed in an outer ring component of the input stage driven wheel front bearing, a rotating gear is rotated in the installation process, and correct meshing of a gear pair is guaranteed. And vertically hoisting the first middle box body 11, aligning and combining the first middle box body with the front box body 10, and fastening the first middle box body and the front box body through bolts. And respectively installing 8 input stage driven wheel rear bearings 222 into bearing sleeves, adjusting glands, sequentially and thermally installing the bearing sleeves into corresponding bearing holes of the first middle box body 11, simultaneously ensuring that the shaft diameters of the inner rings of the bearings are tightly matched with the shaft diameters of the input stage driven wheels 22, and then fastening the bearing sleeves and the glands by bolts.
And S3, assembling the rear shaft sleeve of the input shaft. And pressing the outer ring of the rear support bearing 202 of the input shaft into a corresponding shaft hole of the rear bearing support frame 203, arranging the rear bearing support frame 203 into the first middle box body 11, fastening the rear bearing support frame through bolts, hot-mounting the inner ring assembly of the rear support bearing 202 of the input shaft to the rear end of the input shaft 20, adjusting the pre-tightening amount, pressing the inner ring assembly by using a pressing plate, and fastening the inner ring assembly by using bolts.
And S4, assembling the secondary gear pair 30. As shown in fig. 1, 4 and 5, the secondary gear pair 30 includes 8 secondary driving wheels 31 and 4 secondary driven wheels 32, an input stage driven wheel parallel shaft 223 is disposed on the input stage driven wheel 22, the secondary driving wheel 31 is sleeved on the input stage driven wheel parallel shaft 223 (as shown in fig. 5), the secondary driven wheel 32 is disposed at an inner ring of the secondary driving wheel 31 and is circumferentially disposed, a secondary driven wheel parallel shaft 321 is disposed on the secondary driven wheel 31, and every two adjacent secondary driving wheels 31 are engaged with one secondary driven wheel 32 to form a gear engagement pair.
Hot mounting bearing inner rings at two ends of the secondary driving wheel 31 on shaft necks at two sides, and respectively press mounting outer ring components in corresponding bearing mounting holes of the second middle box body 12 and the third middle box body 13; bearing inner rings at two ends of the secondary driven wheel 32 are hot-mounted on shaft necks at two ends, and outer ring components are respectively press-mounted in corresponding bearing mounting holes of the second middle box body 12 and the third middle box body 13. And (3) vertically hoisting the second middle box body 12, aligning and combining the second middle box body 12 with the first middle box body 11, fastening the second middle box body 12 through bolts, vertically installing 8 second- stage driving wheels 31 and 4 second-stage driven wheels 32 into the second middle box body 12 respectively, ensuring that the inner and outer assemblies of the bearing are correctly matched, and ensuring that the driving wheels and the driven wheels enter a meshing state by means of rotating the gears during hoisting. And vertically hoisting the third middle box body 13, aligning and combining the third middle box body with the second middle box body 12, and fastening the third middle box body with the second middle box body through bolts. During installation, the gear should be slowly descended, rotated in time and placed in a correct position. The bearing inner ring and the bearing outer ring are prevented from being damaged when combined, and the gear is timely centered during installation to correct the position deviation.
And S5, synchronously adjusting the secondary gear pair 30. The input shaft 20 is fixed to the front case 10 by means of a first tool 51 (as shown in fig. 2), the second driven wheel 32 is fixed to the middle case 13 by means of a second tool 52, and the input driven wheel 22 and the second driving wheel 31 are fixed to the input driven wheel 22 and the second driving wheel 31 by means of a third tool 53 and a fourth tool 54, respectively, and apply forces to the input driven wheel 22 and the second driving wheel 31 in the gear meshing pair, wherein the force application directions are consistent with the force application directions in the operating state of the gear box.
Specifically, the second tooling 52 includes a connecting ring 521 and a sector plate 522, the sector plate 522 is fixedly connected with the third middle box 13 through a bolt, the connecting ring 521 includes two half rings, one of the half rings is disposed on the sector plate 522 and can be assembled with the other half ring to form the connecting ring 521, which is sleeved on the parallel shaft 321 of the second-stage driven wheel, and both ends of the half rings are connected through a bolt, so that the two half rings can be fixedly held tightly on the parallel shaft 321 of the second-stage driven wheel, and the second-stage driven wheel 32 is fixed relative to the third middle box 13. Furthermore, reinforcing ribs welded with the half rings are arranged on the sector plates 522 and used for enhancing the overall rigidity and avoiding overlarge deformation of the tool in the loading process.
The third tool 53 comprises a third vertical plate 531 and a third bottom plate 532, the third bottom plate 532 is disc-shaped, a plurality of bolt holes are formed in the circumferential direction, the third bottom plate 532 is fixedly connected with the end face of the input-stage driven wheel parallel shaft 223 through bolts, and the third vertical plate 531 is vertically welded on the third bottom plate 532. The third tool 53 is installed on each input stage driven wheel parallel shaft 223, every two adjacent input stage driven wheels form a group, the second vertical plates of each group are arranged in parallel, the hydraulic cylinder 58 is arranged between the three vertical plates 531, acting force is applied to the three vertical plates 531 in an abutting mode, the input stage driven wheel 22 is loaded to achieve set torque, the direction of the applied torque is kept consistent with the stress of the working state of the gear box, and the working tooth surface of the input stage driven wheel 22 is made to cling to the corresponding working tooth surface of the input stage driving wheel 21. Furthermore, a reinforcing rib welded with the third base plate 532 is arranged on the third vertical plate 531, and is used for reinforcing the rigidity of the third vertical plate 531 and avoiding overlarge deformation of the tool in the loading process.
The fourth tool 54 comprises a fourth vertical plate 541 and a fourth base 542, the fourth base 542 is an annular base, a plurality of bolt holes are formed in the periphery of the annular base, the input-stage driven wheel parallel shaft 223 can be sleeved in the annular base, the input-stage driven wheel parallel shaft is fixedly connected with the end face of the second-stage driving wheel 31 through bolts, and the fourth vertical plate 541 is vertically welded to the fourth base 542. Each secondary driving wheel 31 is provided with a secondary driving wheel 31 loading tool, every two adjacent secondary driving wheels are in a group, four 541 of the two vertical plates in each group are arranged in parallel, the hydraulic cylinder 58 is arranged between the four 541 of the two vertical plates and applies acting force to abut against the four 541 of the two vertical plates to load the secondary driving wheels 31 so as to achieve set torque, the direction of the applied torque keeps consistent with the stress of the working state of the gear box, and the working tooth surfaces of the two secondary driving wheels 31 are tightly attached to the working tooth surfaces of the corresponding secondary driven wheels 32. Furthermore, reinforcing ribs welded with the fourth base 542 are arranged on the fourth vertical plate 541 and used for reinforcing the rigidity of the fourth vertical plate 541, and the excessive deformation of the tool in the loading process is avoided.
After loading is finished, fluctuation gaps which are generated by tolerance variation and error accumulation and affect tooth surface contact are eliminated, a perforation pin hole is drilled on the outer end surface of the connecting position of the input stage driven wheel parallel shaft 223 and the secondary driving wheel 31 along the matching surface, at least two symmetrically arranged holes are drilled, and pin mounting and positioning are carried out. And then loosening the hydraulic cylinder 58 and the tools, processing all the perforation pin holes according to the number required by the design, completing synchronous adjustment, and dismantling the second tool 52. And fastening parts such as a baffle 555, a round nut and the like are arranged to complete the synchronous adjustment of a group of power converging structures, and the synchronous structure adjustment of the parallel shafts 223 of the rest input stage driven wheels and the secondary driving wheel 31 can be completed by sequential operation.
And S6, mounting the tertiary gear pair 40. As shown in fig. 1, 10 and 11, the tertiary gear pair 40 includes four tertiary driving wheels 41, tertiary driven wheels 42 and output shafts 43, the tertiary driving wheels 41 are connected with the parallel shafts 321 of the secondary driven wheels, the tertiary driving wheels 41 and a hub 411 are assembled into an assembly, bolts are kept to be slightly pre-tightened without looseness, an outer ring of a wind wheel side bearing of the hub 411 is pressed into a bearing seat 44, an inner ring assembly of the bearing seat is thermally installed on a wind wheel side journal of the hub 411, and the bearing seat 44 is installed in a middle box body 13 in an aligned mode and fastened through the bolts. The components of the four tertiary driving wheels 41 are respectively and vertically arranged until the inner ring component and the outer ring of the lower end bearing are combined into a whole, and the rotating gears are meshed during installation. The three-stage driven wheel 42 and the output shaft 43 are assembled into an output assembly, the assembly is installed between the four three-stage driving wheels 41, connecting bolts of the hub 411 and the three-stage driving wheels 41 are loosened and the gears are rotated during installation, the gears are guaranteed to be in a primary meshing state, and then the bolts are symmetrically and slightly pre-tightened.
And S7, synchronously adjusting the three-stage gear pair 40. As shown in fig. 2, 12 to 16, the three-stage gear pair 40 is formed by engaging four driving wheels with one driven wheel, and needs to be synchronously adjusted to ensure that each driving wheel contacts with the teeth of the driven wheel at the same time to work normally. The input shaft 20 is fixed relative to the front box body 10 by using a first tool 51, the output shaft 43 is fixed relative to the rear box body 14 by using a fifth tool 55, and the first tool 56 and the seventh tool 57 are respectively fixed on the third-stage driving wheel 41 and the hub 411 of the third-stage driving wheel 41, and apply acting force to the third-stage driving wheel 41 and the hub 411 of the third-stage driving wheel 41, wherein the applying direction of the acting force is consistent with the force applying direction of the working state of the gearbox.
The five tool 55 comprises a cylinder 551, a top plate 552, a bottom plate five 553 and a rear tool box 554, wherein the top plate 552 and the bottom plate five 553 are both annular and are respectively arranged at two ends of the cylinder 551, the bottom plate five 553 is arranged around an outer ring, the top plate 552 is arranged around an inner ring, a plurality of bolt holes are uniformly arranged around the circumference at intervals, and the top plate 552 is connected with the output shaft 43 through bolts. The rear tooling box 554 comprises a baffle 555, an output shaft bearing seat 556, a hub bearing seat 557 and five base 558, wherein the output shaft bearing seat 556, the hub bearing seat 557 and the five base 558 are all in a ring shape, the output shaft bearing seat 556 is arranged in the center of the five base 558 and used for being sleeved on the output shaft 43, the hub bearing seat 557 is uniformly arranged between the five base 558 and the output shaft bearing seat 556 at intervals in the circumferential direction and used for being sleeved on the hub 411, and two sides of the hub bearing seat 557 are respectively connected with the output shaft bearing seat 556 and the five base 558 through rib plates. Baffle 555 sets up on base five 558 around the circumference, and sets up along vertical direction. Bolt holes are formed in the five base 558 and the output shaft bearing seat 556 in the circumferential direction, the five base 558 is connected with the gearbox body through bolts, the output shaft bearing seat 556 is connected with the five bottom plate 553 through bolts, and therefore the output shaft 43 can be fixed relative to the gearbox.
The six 56 tools comprise six 561 vertical plates and six 562 bases, wherein one ends of the six 562 bases are provided with bolt holes and connected with the three-stage driving wheel 41 through bolts, and the six 561 vertical plates are vertically arranged at the other ends of the six 562 bases. Seven 57 of frock includes riser seven 571 and base seven 572, and seven 572 of base are the annular, have seted up a plurality of bolt holes around circumference, pass through bolted connection with wheel hub 411's tip, and riser seven 571 is vertical to be set up in one side of base. The hydraulic cylinders 58 are used as driving parts and are respectively arranged at the loading tool of the three-stage driving wheel 41 and the loading tool of the hub 411, one ends of the hydraulic cylinders 58 are abutted to the baffle 555, the other ends of the two hydraulic cylinders 58 are respectively abutted to the six 561 vertical plates and the seven 571 vertical plates, acting force is applied through the hydraulic cylinders 58, stress is consistent with that of the working state of the gear box, set torque is achieved, and reinforcing ribs are arranged on the six 561 vertical plates and the seven 571 vertical plates, so that rigidity can be improved. Because the adjustment allowance is reserved during pre-installation, the three-stage driving wheel 41 can be pushed to rotate, the gear pair backlash between the output stage and the hub 411 is eliminated, and the working tooth surface of the three-stage driving wheel 41 is tightly attached to the working tooth surface of the three-stage driven wheel 42. After fluctuation gaps generated by various tolerance variations and error accumulation are completely eliminated, connecting bolts of the three-stage driving wheel 41 and the hub 411 can be symmetrically screwed, positioning pin holes are drilled and hinged along the circumferential direction of the distribution of the bolts, at least two positioning pin holes are symmetrically arranged on each driving wheel assembly, and positioning pins are arranged for positioning. Finally, all the tools can be detached, the connecting bolts of the third-stage driving wheel 41 and the hub 411 are screwed again according to the designed torque, and the rear box body 14 and the middle box body 13 are assembled in a contraposition mode and fixed through the bolts. The hub 411 motor side bearing, bearing housing, gland, etc. are then assembled into an assembly and hot-fitted onto the hub 411. The output shaft 43 is bearing-mounted to the output shaft 43.
And S8, finishing the final assembly of the gearbox after the installation of other accessories of the gearbox is finished.
The assembling method of the wind turbine gearbox has the following beneficial effects:
(1) the novel gear box with the multi-split parallel transmission structure can be used for assembling similar structures, and the problem that the novel wind power gear box is not suitable for a ready-made assembling method due to a brand-new structure is solved.
(2) The method of assembling and adjusting during final assembly is adopted, errors influencing the uniform load of the gear pair are concentrated on the synchronous adjusting structure to be eliminated, the design precision requirement of related parts in the novel wind power gearbox can be relaxed, and the difficulty in part processing is reduced; and because the precision requirement is reduced, the selection range of the machine tool can be expanded, and the processing cost is reduced.
(3) The synchronous adjustment method of the secondary gear pair is simple and easy to operate, can quickly eliminate errors, adopts grouping sequence operation, has simple corresponding tool structure and light weight, is clear and concise in operation process, easy to master, good in adjustment effect and short in operation time, can completely eliminate accumulated errors, enables the secondary gear pair to be in a good contact state, and improves reliability.
(4) The synchronous adjustment method of the three-level gear pair simplifies the structural design of the rear box body and eliminates the damage of bearing disassembly and assembly, the adjustment is completed by fixing the gear pair with the tool bearing by the box body and the tool after the tool is adopted, the tool is disassembled after the adjustment is completed to complete cleaning and bolt fastening, and the rear box body and the bearing assembly are installed, so that the structural design of the rear box body can be simplified, the strength of the rear box body is improved, the damage risk of repeated disassembly and assembly of the bearing is also avoided, the hidden danger is eliminated, and the reliability is improved.
(5) Vertical assembly is adopted in the whole process, the assembly component body does not need to be moved, turned over in the middle, turned around and the like, operation is simplified, assembly difficulty is reduced, and assembly efficiency and assembly safety are improved.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. The assembling method of the wind turbine gearbox is characterized by comprising the following steps of:
s1: assembling an input shaft front shaft sleeve, wherein the input shaft front shaft sleeve comprises an input shaft and an input stage driving wheel, sleeving a box body of the gearbox into the input shaft, connecting the box body with the front end of the input shaft, sleeving the input stage driving wheel on the input shaft, and fixedly connecting the input stage driving wheel with the input shaft;
s2: assembling an input stage driven wheel sleeve, wherein the input stage driven wheel sleeve comprises a plurality of input stage driven wheels, and the input stage driven wheels are sequentially arranged in a gear box, are arranged around the input stage driving wheel in the circumferential direction and are meshed with the input stage driving wheel;
s3: assembling an input shaft rear shaft part sleeve, wherein the input shaft rear shaft part sleeve comprises an input shaft rear support bearing and a rear bearing support frame, pressing an outer ring of the input shaft rear support bearing into a corresponding shaft hole of the rear bearing support frame, mounting the rear bearing support frame into a gearbox body and fixing the rear bearing support frame through bolts, hot-mounting an inner ring of the input shaft rear support bearing to the rear end of the input shaft, fixing the inner ring of the input shaft rear support bearing through bolts, and connecting the rear end of the input shaft with the gearbox body;
s4: assembling a secondary gear pair, wherein the secondary gear pair comprises a plurality of secondary driving wheels and secondary driven wheels, the plurality of secondary driving wheels and the plurality of secondary driven wheels are respectively arranged in the gear box, the secondary driving wheels are correspondingly connected with the input stage driven wheels one by one, and every two adjacent secondary driving wheels are meshed with one secondary driven wheel to form a gear meshing pair;
s5: the input shaft is fixed relative to a gearbox body by using a first tool, the secondary driven wheel is fixed relative to the gearbox body by using a second tool, a third tool and a fourth tool are respectively fixed on the input stage driven wheel and the secondary driving wheel, acting force is applied to the input stage driven wheel and the secondary driving wheel in the gear meshing pair, and the force application direction is consistent with the force application direction of the gearbox in the working state;
s6: installing a three-level gear pair, wherein the three-level gear pair comprises a three-level driving wheel, a three-level driven wheel and an output shaft, the three-level driving wheels are respectively installed in the gear box and are in one-to-one correspondence connection with the two-level driven wheel, and the three-level driven wheel and the output shaft are assembled into an output assembly and are installed among the three-level driving wheels and are meshed with each other;
s7: the third-stage gear pair is synchronously adjusted, the input shaft is fixed relative to the gearbox body by using a first tool, the output shaft is fixed relative to the gearbox body by using a fifth tool, the third tool and a seventh tool are respectively fixed on hubs of the third-stage driving wheel and the third-stage driving wheel, acting force is applied to the hubs of the third-stage driving wheel and the third-stage driving wheel, and the force application direction is consistent with the force application direction of the gearbox in a working state;
s8: and (5) dismantling all the tools and finishing the final assembly of the gearbox.
2. The assembling method of the wind turbine gearbox according to claim 1, wherein the input shaft front shaft sleeve further comprises an input shaft front support bearing, and the step S1 specifically comprises: the method comprises the steps of hot-assembling an inner ring of an input shaft front support bearing at the front end of an input shaft, press-assembling an outer ring of the input shaft front support bearing into a corresponding shaft hole of a gearbox box body, sleeving the gearbox box body into the input shaft, enabling the outer ring of the input shaft front support bearing to be in contact with the inner ring, sleeving the input stage driving wheel on the input shaft, and fixing the input stage driving wheel through bolts.
3. The assembling method of the wind turbine gearbox according to claim 2, wherein the step S1 specifically comprises: the input shaft is vertically placed, the gearbox body is vertically hoisted, an opening of an outer ring of a support bearing provided with the input shaft is downward, the input shaft is sleeved, and the input stage driving wheel is horizontally hoisted and sleeved into the input shaft.
4. The assembling method of the wind turbine generator gearbox according to claim 3, wherein the step S2 specifically comprises: the input stage driven wheel is vertically placed, a front bearing of the input stage driven wheel is hot-mounted, the input stage driven wheel is vertically hoisted and sequentially installed in the gear box, and a rear bearing of the input stage driven wheel is sequentially installed.
5. The assembling method of the wind turbine gearbox according to claim 1, wherein the step S4 specifically comprises: and hot-assembling the bearing inner ring assemblies of the secondary driving wheel and the secondary driven wheel to the shaft diameters at two sides, press-assembling the outer ring assemblies into corresponding bearing holes of the gearbox body, and vertically assembling the secondary driving wheel and the secondary driven wheel into the gearbox body respectively.
6. The assembling method of the wind turbine generator gearbox according to claim 1, wherein step S5 specifically comprises: two adjacent second-stage driving wheels are meshed with one second-stage driven wheel to form a group of gear meshing pairs, a third tool is fixed on the input-stage driven wheel, a hydraulic cylinder is used for applying acting force to the three tools in the gear meshing pairs, a fourth tool is fixed on the input-stage driven wheel, and the hydraulic cylinder is used for applying acting force to the fourth tool of the two adjacent gear meshing pairs.
7. The assembling method of the wind turbine gearbox according to claim 1, wherein the step S6 specifically comprises: and hot-assembling the bearing inner ring of the third-stage driving wheel, assembling the outer ring of the third-stage driving wheel into the gearbox body, sequentially and vertically assembling the plurality of third-stage driving wheels into the gearbox body, and vertically assembling the output assembly between the plurality of third-stage driving wheels.
8. The assembling method of the wind turbine gearbox according to claim 1, wherein the step S7 specifically comprises: fixing a tool six on the third-stage driving wheel, fixing a tool seven on a hub of the third-stage driving wheel, and applying acting force to the tool six and the tool seven by using a hydraulic cylinder.
9. The assembling method of the wind turbine gearbox according to claim 1, wherein the step S8 specifically comprises: and after all the tools are disassembled, fixing the three-stage driving wheel and the hub thereof through a connecting bolt, assembling a gearbox body, and installing the bearing of the output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264654.1A CN113909842B (en) | 2021-10-28 | 2021-10-28 | Assembly method of wind turbine generator gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264654.1A CN113909842B (en) | 2021-10-28 | 2021-10-28 | Assembly method of wind turbine generator gearbox |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113909842A CN113909842A (en) | 2022-01-11 |
| CN113909842B true CN113909842B (en) | 2022-08-02 |
Family
ID=79243352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111264654.1A Active CN113909842B (en) | 2021-10-28 | 2021-10-28 | Assembly method of wind turbine generator gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113909842B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2525090B1 (en) * | 2011-05-18 | 2016-06-29 | ZF Wind Power Antwerpen NV | Wind turbine nacelle |
| CN103042378B (en) * | 2013-01-07 | 2015-02-04 | 国电联合动力技术有限公司 | Tool and method for assembling transmission spindle and gearbox in wind turbine generator |
| CN103522033B (en) * | 2013-10-15 | 2016-08-03 | 成都发动机（集团）有限公司 | Electromotor driving front casing and the Butt Assembling frock of rear transmission casing |
| US10935122B2 (en) * | 2019-02-11 | 2021-03-02 | American Axle & Manufacturing, Inc. | Bearing preload apparatus |
| CN110802380B (en) * | 2019-10-11 | 2021-01-26 | 明阳智慧能源集团股份公司 | Assembly method of wind power gear box planetary component |
| CN113231984A (en) * | 2021-06-30 | 2021-08-10 | 华能陈巴尔虎旗风力发电有限公司 | Wind power gear box assembling platform |
-
2021
- 2021-10-28 CN CN202111264654.1A patent/CN113909842B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113909842A (en) | 2022-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101371038B (en) | Combination type planetary supporter for wind power generation, wind power generation gear change mechanism and wind power generation plant | |
| JP6022564B2 (en) | Wind turbine drive | |
| EP2553264B1 (en) | Wind turbine | |
| CN107322468A (en) | A kind of modular array formula multi-working-head end effector | |
| CN113909842B (en) | Assembly method of wind turbine generator gearbox | |
| EP3762605B1 (en) | A method for repairing, replacing, and/or inspecting an up-tower modular gearbox assembly | |
| WO2024083254A1 (en) | Wind turbine gearbox connecting structure and gearbox | |
| CN215968512U (en) | Assembly fixture of wind turbine generator gearbox | |
| CN216111113U (en) | Wind-powered electricity generation gear box synchronization adjustment frock | |
| CN215293537U (en) | Planet carrier and gear box | |
| CN102678892B (en) | Power transmission device and wind turbine with same | |
| CN2861628Y (en) | Wind power generation used assembled planetary frame | |
| CN219119729U (en) | Wind power gear box with floating connection of gear ring and main shaft bearing seat | |
| CN114211285A (en) | On-site repair machine tool for machining generator large shaft after laser cladding | |
| CN111590309A (en) | Bolt dismounting torque increasing device | |
| CN113006812A (en) | Driving device of push bench | |
| CN111810591A (en) | Detachable compact power division main transmission system | |
| CN218913603U (en) | Wind power gear box body | |
| CN215521842U (en) | Modularized planetary reduction driving unit and robot applying same | |
| CN216519492U (en) | Wind power generation gear box body | |
| CN220015862U (en) | Gear pump driving adapter structure of diesel engine | |
| CN215861683U (en) | Detachable integrated wind power main transmission system with power division function | |
| CN216789160U (en) | Combined dismounting automobile gear | |
| CN113915319B (en) | Speed increasing gear box of wind generating set | |
| CN203067728U (en) | Automobile gear with free removal type matrix |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 30 Jinyu Avenue, Economic Development Park, Yubei District, Chongqing, 400000 Patentee after: China Shipbuilding Haizhuang Wind Power Co.,Ltd. Country or region after: Zhong Guo Address before: 401122 No. 30 Jinyu Avenue, Jingkaiyuan, North New District of Chongqing Patentee before: CSIC HAIZHUANG WINDPOWER Co.,Ltd. Country or region before: Zhong Guo |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240320 Address after: No. 30 Jinyu Avenue, Economic Development Park, Yubei District, Chongqing, 400000 Patentee after: China Shipbuilding Haizhuang Wind Power Co.,Ltd. Country or region after: Zhong Guo Patentee after: China Shipbuilding Offshore Wind Power (Shandong) Co.,Ltd. Address before: No. 30 Jinyu Avenue, Economic Development Park, Yubei District, Chongqing, 400000 Patentee before: China Shipbuilding Haizhuang Wind Power Co.,Ltd. Country or region before: Zhong Guo |
|
| TR01 | Transfer of patent right |