CN113541385B - Wind driven generator set shaft electric control centering adjusting device and method - Google Patents
Wind driven generator set shaft electric control centering adjusting device and method Download PDFInfo
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- CN113541385B CN113541385B CN202110959445.2A CN202110959445A CN113541385B CN 113541385 B CN113541385 B CN 113541385B CN 202110959445 A CN202110959445 A CN 202110959445A CN 113541385 B CN113541385 B CN 113541385B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses an electric control centering adjusting device and method for a shaft of a wind driven generator set, and the device comprises a supporting base, a first adjusting part and a second adjusting part, wherein the first adjusting part and the second adjusting part are arranged on the left side and the right side of the supporting base, telescopic supporting pieces for supporting a generator are respectively arranged on the left side and the right side of the supporting base, the first adjusting part and the second adjusting part respectively comprise a frame, a sliding block which is driven by a horizontal hydraulic cylinder and slides along the frame is arranged in the frame, a vertical hydraulic cylinder is arranged on the sliding block, during adjustment, the vertical hydraulic cylinders of the first adjusting part and the second adjusting part drive the two sides of the generator to lift and adjust the height, and the horizontal hydraulic cylinders of the first adjusting part and the second adjusting part drive the sliding block to slide so as to drive the two sides of the generator to move back and forth to adjust the front and back position. The hydraulic cylinder of each adjusting part is driven by the hydraulic system to carry out automatic adjustment, so that the position deviation is avoided, the automatic adjustment efficiency is high, and the stability is good.
Description
Technical Field
The invention relates to a wind driven generator, in particular to an electric control centering adjusting device and method for a shaft of a wind driven generator set.
Background
The wind driven generator technology is applied in a large scale in the global scope and is used as a new energy technology which is fastest in development and most widely applied. The wind turbine generator system has a large influence on the stable operation of the wind turbine generator system due to the shaft centering state of the wind turbine generator system, and the wind turbine generator system is vibrated or damaged due to the poor shaft centering state of the wind turbine generator system. The shaft centering adjustment is timely and fast, so that the mechanical abrasion of the generator set is reduced, the service life is prolonged, and the economic benefit is improved.
Chinese patent 201210307388.0 discloses a centering adjusting device for a generator of a megawatt wind generating set, which utilizes an adjusting device composed of a base, a supporting plate and a jack with a piston to perform shaft centering adjustment on the generator, wherein the jack is used for adjusting the vertical position of the generator, adjusting a screw rod connected with a sliding block is used for adjusting the left and right positions of the generator, and the whole centering adjusting process is manually operated by technicians, so that the adjusting time is long. Chinese patent 201220453653.1 discloses a portable wind generating set's generator centering adjusting device, with adjusting device pedestal mounting in the frame, the screw hole that utilizes the backup pad to set up adjusts with it complex bolt ejector pin, needs the technical staff to carry out manual regulation, and pedestal mounting needs to punch in the generator frame moreover and passes through the bolt fastening, has certain destruction to the generator frame.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an electric control centering adjusting device for a shaft of a wind driven generator set, and solves the problems that manual operation is needed in the existing centering adjustment, the efficiency is low, and the stability is poor.
The technical scheme is as follows: the invention relates to an electric control centering adjusting device for a shaft of a wind driven generator set, which comprises a supporting base, a first adjusting part and a second adjusting part, wherein the first adjusting part and the second adjusting part are arranged on the left side and the right side of the supporting base, telescopic supporting pieces for supporting a generator are respectively arranged on the left side and the right side of the supporting base, the first adjusting part and the second adjusting part respectively comprise a frame, a sliding block driven by a horizontal hydraulic cylinder and sliding along the frame is arranged in the frame, a vertical hydraulic cylinder is arranged on the sliding block, the vertical hydraulic cylinders of the first adjusting part and the second adjusting part drive the two sides of the generator to lift and lower for height adjustment, and the horizontal hydraulic cylinders of the first adjusting part and the second adjusting part drive the sliding block to slide so as to drive the two sides of the generator to move back and forth for front and back position adjustment.
In order to guide the sliding, guide grooves are respectively formed in the left side and the right side of the frame, and the sliding blocks slide along the guide grooves through installed guide bolts.
Make things convenient for the slider installation, the slider includes front panel, rear panel, side board and bottom surface board, all through bolted connection between front panel, rear panel and side board, the bottom surface board respectively.
And the horizontal hydraulic cylinder and the vertical hydraulic cylinder are communicated with a hydraulic station, and the hydraulic station controls oil supply through an electromagnetic directional valve.
The horizontal hydraulic cylinders of the first adjusting component and the second adjusting component are fixed in the frame through fixing devices respectively.
The invention relates to an adjusting method of an electric control centering adjusting device of a wind driven generator set shaft, which comprises the following steps:
(1) Detecting a generator set shaft by using a centering instrument to obtain centering data information;
(2) The vertical hydraulic cylinder of the first adjusting component works to lift the left side of the generator, and the left side of the generator is separated from the telescopic support piece;
(3) The horizontal hydraulic cylinder of the first adjusting part works to drive the sliding block to slide, so that the left side of the generator is driven to slide to a horizontal plane shaft centering position, the telescopic supporting piece on the left side of the generator extends to a shaft centering height, the vertical hydraulic cylinder of the first adjusting part resets, and the left side of the generator is in contact with the telescopic supporting piece on the left side;
(4) The vertical hydraulic cylinder of the second adjusting component works to lift the right side of the generator, and the right side of the generator is separated from the telescopic support;
(5) The horizontal hydraulic cylinder of the second adjusting part works to drive the sliding block to slide so as to drive the right side of the generator to slide to a horizontal plane shaft centering position, the telescopic supporting piece on the right side of the generator extends to a shaft centering height, the vertical hydraulic cylinder of the second adjusting part resets, and the right side of the generator is contacted with the telescopic supporting piece on the right side;
(6) And judging the shaft centering state of the generator set according to the data information of the centering instrument, finishing the shaft centering adjustment if the shaft centering position of the generator is reached, and repeating the steps if the shaft centering position of the generator is not reached.
Has the advantages that: the hydraulic cylinders of the adjusting parts are driven by the hydraulic system to carry out automatic adjustment, the adjusting parts can be disassembled, the horizontal hydraulic cylinders are fixed by the fixing device and cannot generate position deviation, the arranged guide grooves and the guide bolts ensure that the sliding blocks cannot generate vertical direction deviation, the sliding blocks can be ensured to horizontally slide, and in the centering adjustment process, only one side adjusting module is controlled each time to adjust one side generator, so that the side turning of the generator in the adjustment process is prevented.
Drawings
FIG. 1 is a schematic view of the present invention during adjustment;
FIG. 2 is a schematic view of the first and second adjustment members;
FIG. 3 is a view of the first adjustment member of FIG. 2 in the direction of direction A;
FIG. 4 is a view of the first adjustment member of FIG. 2 in the direction of B;
FIG. 5 is a schematic sectional view of the first adjustment member taken along line C-C and line D-D;
FIG. 6 is a schematic cross-sectional view of the first adjustment member slider taken along the direction E-E and F-F;
FIG. 7 is a schematic illustration of the hydraulic control of the present invention;
FIG. 8 is a schematic diagram of the process of the conditioning method of the present invention;
FIG. 9 is a front view of the first adjustment assembly lifting the left side of the generator;
FIG. 10 is a schematic diagram of a side view of the first adjustment element lifting the left side of the generator;
FIG. 11 is a schematic view of a first adjustment member in a vertical hydraulic cylinder return configuration;
FIG. 12 is a front view of the second adjustment member lifting the left side of the generator;
FIG. 13 is a schematic diagram of a side view of the second adjustment member lifting the left side of the generator;
fig. 14 is a schematic view of the second adjusting part vertical hydraulic cylinder resetting structure.
Detailed Description
As shown in figure 1, the invention relates to an electric control centering adjusting device for a shaft of a wind driven generator set, which mainly comprises a generator 1, a first adjusting part 2, a second adjusting part 3, a generator supporting base 4, a hydraulic station 5, an electric control system 6 and the like. The adjusting system is composed of a first adjusting component 2, a second adjusting component 3 and a hydraulic station 5, wherein the first adjusting component 2 and the second adjusting component 3 are installed below the generator, the first adjusting component 2 is installed on the left side of the generator, the second adjusting component 3 is installed on the right side of the generator, and an electric control system 6 controls the flow and the speed of the hydraulic station 5 to achieve the purpose of controlling the strokes of hydraulic cylinders such as the first adjusting component 2 and the second adjusting module 3.
As shown in fig. 2, the first adjusting member 2 is composed of a first horizontal hydraulic cylinder 7, a first vertical hydraulic cylinder 8, a second horizontal hydraulic cylinder 9, a first slider 10, a first fixing device 18, and a second fixing device 17, the first horizontal hydraulic cylinder 7 is fixed by the first fixing device 18, and the second horizontal hydraulic cylinder 9 is fixed by the second fixing device 17. The second adjusting part 3 is composed of a third horizontal hydraulic cylinder 11, a second vertical hydraulic cylinder 12, a fourth horizontal hydraulic cylinder 13, a second slider 14, a third fixing device 16 and a fourth fixing device 15, wherein the third horizontal hydraulic cylinder 11 is fixed by the third fixing device 16, and the fourth horizontal hydraulic cylinder 13 is fixed by the fourth fixing device 15.
As shown in fig. 3 to 4, the first guide bolt 21 and the second guide bolt 22 are connected with the slider 10, and the first guide bolt 21 and the second guide bolt 22 slide in the first guide groove 23; the third guide bolt 24 and the fourth guide bolt 25 are connected with the slider 10, and the third guide bolt 24 and the fourth guide bolt 25 slide in the second guide groove 26. The cooperation between the first guide bolt 21, the second guide bolt 22, the third guide bolt 24, the fourth guide bolt 25, the first guide groove 23 and the second guide groove 26 ensures that the slide 10 does not shift vertically when sliding in the first adjustment member 2.
As shown in fig. 5, the first adjusting member frame has a front panel 27 and a rear panel 29 connected to the side panels 28 by bolts, and the front panel 27 and the rear panel 29 are connected to the bottom panel 30 by bolts. The first guide bolt 21, the second guide bolt 22, the third guide bolt 24, and the fourth guide bolt 25 are fastened to the threads provided on the first slider 10.
As shown in fig. 6, the front plate 31 and the rear plate 33 of the first slider 10 are connected to the side plate 32 by bolts, the front plate 31 and the rear plate 33 of the slider 10 are connected to the bottom plate 34 by bolts, and the first guide bolt 21, the second guide bolt 22, and the third guide bolt 24 are fastened to the screw thread provided on the first slider 10.
As shown in fig. 7, when the electromagnetic directional valve 40 is in the right position, the hydraulic station supplies oil to the first horizontal hydraulic cylinder 7, the first vertical hydraulic cylinder 8, the third horizontal hydraulic cylinder 11, and the second vertical hydraulic cylinder 12; when the electromagnetic directional valve 40 is in the left position, the hydraulic station 5 supplies oil to the second horizontal hydraulic cylinder 9 and the fourth horizontal hydraulic cylinder 13; when the electromagnetic directional valve 40 is in the neutral position, the hydraulic oil is returned to the tank through the relief valve 47. And whether oil is supplied to the first horizontal hydraulic cylinder 7, the first vertical hydraulic cylinder 8, the second horizontal hydraulic cylinder 9, the third horizontal hydraulic cylinder 11, the second vertical hydraulic cylinder 12 and the fourth horizontal hydraulic cylinder 13 is determined by respectively controlling the two-position two-way electromagnetic directional valve I41, the two-position two-way electromagnetic directional valve II 42, the two-position two-way electromagnetic directional valve III 43, the two-position two-way electromagnetic directional valve IV 44, the two-position two-way electromagnetic directional valve V45 and the two-position two-way electromagnetic directional valve VI 46. The speed control valve I51 controls the speed of the piston rod of the first horizontal hydraulic cylinder 7 and the piston rod of the first vertical hydraulic cylinder 8, the speed control valve II 52 controls the speed of the piston rod of the second horizontal hydraulic cylinder 9, the speed control valve III53 controls the speed of the piston rod of the third horizontal hydraulic cylinder 11 and the piston rod of the second vertical hydraulic cylinder 12, and the speed control valve IV 54 controls the speed of the piston rod of the fourth horizontal hydraulic cylinder 13.
As shown in fig. 8-14, the centering adjustment method of the present invention comprises the following steps:
(1) And detecting the generator set shaft by using the centering instrument to obtain centering data.
(2) The first adjusting component 2 arranged on the left side of the generator 1 is utilized to control the first vertical hydraulic cylinder 8 to lift the left side of the generator 1, namely, as shown in fig. 7, the electromagnetic directional valve 40 is located at the right position, the two-position two-way electromagnetic directional valve III 42 is located at the left position, the hydraulic pump 50 supplies oil to the first vertical hydraulic cylinder 8, at the moment, the speed of the piston rod of the first vertical hydraulic cylinder 8 is controlled by the speed regulating valve I51, so that the generator 1 is separated from the left telescopic flexible support 48, and finally, the two-way electromagnetic directional valve III 42 is located at the right position to ensure that the vertical hydraulic cylinder I8 does not return oil.
(3) The first horizontal hydraulic cylinder 7 and the second horizontal hydraulic cylinder 9 arranged on the first adjusting component 2 are controlled to adjust the left-side horizontal direction shaft centering state of the generator 1, namely, as shown in fig. 7, when the electromagnetic directional valve 40 is in the right position, the two-position two-way electromagnetic directional valve II 41 and the two-position two-way electromagnetic directional valve IV 43 are in the left position, the first horizontal hydraulic cylinder 7 supplies oil, and the second horizontal hydraulic cylinder 9 returns oil, at this time, the piston rod speed of the first horizontal hydraulic cylinder 7 is controlled by the speed regulating valve I51, and the piston rod speed of the second horizontal hydraulic cylinder 9 is controlled by the speed regulating valve II 52; when the electromagnetic directional valve 40 is in the left position, the two-position two-way electromagnetic directional valve II 41 and the two-position two-way electromagnetic directional valve IV 43 are in the left position, the second horizontal hydraulic cylinder 9 supplies oil, the first horizontal hydraulic cylinder 7 returns oil, at this time, the speed of the piston rod of the first horizontal hydraulic cylinder 7 is controlled by the speed regulating valve I51, and the speed of the piston rod of the second horizontal hydraulic cylinder 9 is controlled by the speed regulating valve II 52.
(4) The telescopic flexible support 48 at the left side of the generator 1 is adjusted, so that the axial centering state of the vertical direction at the left side of the generator is adjusted.
(5) The first vertical hydraulic cylinder 8 of the first adjusting component 2 is controlled to move downwards, that is, as shown in fig. 7, the electromagnetic directional valve 40 is in the left position, the two-position two-way electromagnetic directional valve III 42 is in the left position, the weight of the generator enables the first vertical hydraulic cylinder 8 to return oil, at this time, the speed of the piston rod of the first vertical hydraulic cylinder 8 is controlled by the speed regulating valve I51, the first vertical hydraulic cylinder 8 is restored to the initial state, and the left side of the generator 1 is in contact with the flexible support 48.
(6) By utilizing the second adjusting component 3 arranged on the right side of the generator 1, the second vertical hydraulic cylinder 12 is controlled to lift the right side of the generator 1, namely, as shown in fig. 7, the electromagnetic directional valve 40 is positioned on the right, the two-position two-way electromagnetic directional valve VI 45 is positioned on the left, the hydraulic pump 50 supplies oil to the second vertical hydraulic cylinder 12, at this time, the speed of the piston rod of the second vertical hydraulic cylinder 12 is controlled by the speed regulating valve III53, so that the generator 1 is separated from the right telescopic flexible support 49, and finally, the two-position two-way electromagnetic directional valve VI 45 is positioned on the right to ensure that the second vertical hydraulic cylinder 12 does not return oil.
(7) The third horizontal hydraulic cylinder 11 and the fourth horizontal hydraulic cylinder 13 arranged on the second adjusting component 3 are controlled and adjusted to adjust the shaft centering state of the right side of the generator 1 in the horizontal direction. That is, as shown in fig. 7, when the electromagnetic directional valve 40 is in the right position, and the two-position two-way electromagnetic directional valve IV 44 and the two-position two-way electromagnetic directional valve VI 46 are in the left position, the third horizontal hydraulic cylinder 11 supplies oil, and the fourth horizontal hydraulic cylinder 13 returns oil, at this time, the speed of the piston rod of the third horizontal hydraulic cylinder 11 is controlled by the speed regulating valve III53, and the speed of the piston rod of the fourth horizontal hydraulic cylinder 13 is controlled by the speed regulating valve IV 54; when the electromagnetic directional valve 40 is in the left position, the two-position two-way electromagnetic directional valve IV 44 and the two-position two-way electromagnetic directional valve VI 46 are in the left position, the third horizontal hydraulic cylinder 11 returns oil, and the fourth horizontal hydraulic cylinder 13 supplies oil, at this time, the speed of the piston rod of the third horizontal hydraulic cylinder 11 is controlled by the speed regulating valve III53, and the speed of the piston rod of the fourth horizontal hydraulic cylinder 13 is controlled by the speed regulating valve IV 54.
(8) The right flexible support 49 of the generator 1 is adjusted, so that the right vertical axis centering state of the generator is adjusted.
(9) The second vertical hydraulic cylinder 12 of the second adjusting component 3 is controlled to move downwards, that is, as shown in fig. 7, the electromagnetic directional valve 40 is in the right position, the two-position two-way electromagnetic directional valve VI 45 is in the left position, and the weight of the generator returns oil to the second vertical hydraulic cylinder 12, at this time, the speed of the piston rod of the second vertical hydraulic cylinder 12 is controlled by the speed regulating valve III53, the second vertical hydraulic cylinder 12 is restored to the initial state, and the right side of the generator 1 is in contact with the flexible support 49.
(10) Checking the centering instrument, judging the shaft centering state of the generator set, finishing the shaft centering adjustment if the shaft centering state of the generator set is good, and returning to the second step to continue the adjustment if the shaft centering state of the generator set is poor.
Claims (5)
1. The adjusting method of the wind power generation set shaft electric control centering adjusting device comprises a supporting base (4), a first adjusting part (2) and a second adjusting part (3), wherein the first adjusting part (2) and the second adjusting part (3) are arranged on the left side and the right side of the supporting base (4), telescopic supporting parts for supporting a generator are further arranged on the left side and the right side of the supporting base (4) respectively, the first adjusting part (2) and the second adjusting part (3) both comprise frames, guide grooves are formed in the left side and the right side of each frame respectively, sliding blocks driven by horizontal hydraulic cylinders and sliding along the frames are arranged in the frames, the sliding blocks slide along the guide grooves through installed guide bolts, vertical hydraulic cylinders are arranged on the sliding blocks, wherein the vertical hydraulic cylinders of the first adjusting part (2) and the second adjusting part (3) drive the two sides of the generator to ascend and descend to adjust the height, the horizontal hydraulic cylinders of the first adjusting part (2) and the second adjusting part (3) drive the sliding blocks to slide to drive the two sides of the generator (1) to move back and forth, and back position adjustment is characterized by comprising the following steps:
(1) Detecting a generator set shaft by using a centering instrument to obtain centering data information;
(2) The vertical hydraulic cylinder of the first adjusting component (2) works to lift the left side of the generator (1), and the left side of the generator (1) is separated from the telescopic supporting piece;
(3) The horizontal hydraulic cylinder of the first adjusting part (2) works to drive the sliding block to slide, so that the left side of the generator (1) is driven to slide to a horizontal plane shaft centering position, the telescopic supporting piece at the left side of the generator (1) extends to a shaft centering height, the vertical hydraulic cylinder of the first adjusting part (2) resets, and the left side of the generator (1) is in contact with the telescopic supporting piece at the left side;
(4) The vertical hydraulic cylinder of the second adjusting component (3) works to lift the right side of the generator (1), and the right side of the generator (1) is separated from the telescopic support;
(5) The horizontal hydraulic cylinder of the second adjusting part (3) works to drive the sliding block to slide, so that the right side of the generator (1) is driven to slide to a horizontal plane shaft centering position, the telescopic supporting piece at the right side of the generator (1) extends to a shaft centering height, the vertical hydraulic cylinder of the second adjusting part (3) resets, and the right side of the generator is in contact with the telescopic supporting piece at the right side;
(6) And judging the shaft centering state of the generator set according to the data information of the centering instrument, finishing the shaft centering adjustment if the shaft centering position of the generator is reached, and repeating the steps if the shaft centering position of the generator is not reached.
2. The adjusting method of the wind turbine generator set shaft electric control centering adjusting device according to claim 1, wherein the sliding block comprises a front panel, a rear panel, a side panel and a bottom panel, and the front panel, the rear panel, the side panel and the bottom panel are respectively connected through bolts.
3. Method for adjusting an electrically controlled centering adjusting device of a wind generating set shaft according to claim 1, characterized in that the horizontal hydraulic cylinder and the vertical hydraulic cylinder are communicated with a hydraulic station (5), and the hydraulic station (5) controls oil supply through an electromagnetic directional valve.
4. The method for adjusting an electrically controlled centering adjustment device for a wind turbine generator set shaft according to claim 1, wherein said retractable support is a flexible support.
5. Method for adjusting an electrically controlled centering adjustment device for a wind turbine generator shaft according to claim 1, characterized in that the horizontal hydraulic cylinders of the first adjustment member (2) and the second adjustment member (3) are fixed in the frame by fixing means, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110959445.2A CN113541385B (en) | 2021-08-20 | 2021-08-20 | Wind driven generator set shaft electric control centering adjusting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110959445.2A CN113541385B (en) | 2021-08-20 | 2021-08-20 | Wind driven generator set shaft electric control centering adjusting device and method |
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| Publication Number | Publication Date |
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| CN113541385A CN113541385A (en) | 2021-10-22 |
| CN113541385B true CN113541385B (en) | 2022-12-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114109741B (en) * | 2021-11-22 | 2023-12-22 | 江苏科技大学 | Centering monitoring system and method for wind power generator shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005269756A (en) * | 2004-03-18 | 2005-09-29 | Denso Corp | Rotating electric machine |
| CN206578554U (en) * | 2017-02-17 | 2017-10-24 | 上海诺倬力机电科技有限公司 | A kind of adjustable numerical tool operation platform |
| CN207166284U (en) * | 2017-08-15 | 2018-03-30 | 天津创远亿德科技发展有限公司 | A kind of motor for facilitating centering |
| CN207353975U (en) * | 2017-11-09 | 2018-05-11 | 株洲中车时代电气股份有限公司 | A kind of motor center support system |
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