CN220596788U - Hydroelectric set generator stator overhauls and lifts by crane anti-deformation device - Google Patents
Hydroelectric set generator stator overhauls and lifts by crane anti-deformation device Download PDFInfo
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- CN220596788U CN220596788U CN202320595498.5U CN202320595498U CN220596788U CN 220596788 U CN220596788 U CN 220596788U CN 202320595498 U CN202320595498 U CN 202320595498U CN 220596788 U CN220596788 U CN 220596788U
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- lifting
- rod
- overhauling
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- 230000003405 preventing effect Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- Y02E10/20—Hydro energy
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a maintenance, lifting and deformation preventing device for a generator stator of a hydroelectric generating set, which comprises a detachable support frame, wherein a plurality of positioning plates are arranged at the edge of the support frame and are arranged in the same circumferential direction, a connecting plate used for being connected with the generator stator of the hydroelectric generating set is arranged on each positioning plate, a plurality of rotatable bolts are embedded into the inner side of each connecting plate, and penetrate through the positioning plates and are in threaded connection with the positioning plates so as to connect the connecting plate and the support frame with each other; the support frame comprises a detachable transverse support rod, a detachable vertical support rod and a connecting piece, and the positioning plates are respectively arranged at two ends of the transverse support rod and the vertical support rod; and a diagonal bracing rod is connected between the transverse bracing rod and the vertical bracing rod. The utility model has the characteristics of high stability, high flexibility, high service efficiency and the like, can effectively realize balanced stress of the stator in the lifting process, and is suitable for fixing the stator body in the overhauling and lifting process of the stator of the generator.
Description
Technical Field
The utility model relates to the field of maintenance of a stator of a hydraulic generator, in particular to a lifting anti-deformation device for maintenance of the stator of the hydraulic generator.
Background
With the increase of the demand of the electric power market, the single-machine capacity of the current hydraulic generator is developed from thousands of kW to tens of thousands of kW, the diameter of the stator is close to 10m, and the total weight of the stator is more than 90 tons. The hydropower plant needs to hoist the stator from the wind tunnel to the installation site in the unit stator maintenance process, so that a feasible scheme is made according to factors such as the rigidity of the stator base, the diameter and the total weight of the stator when the stator is integrally hoisted. Otherwise, the stator is deformed in the lifting process due to factors such as a stress surface, single stress direction, uneven stress, long lifting time and the like, which directly leads to the destruction of the insulation of the stator coil, and the motor is short-circuited when serious.
Disclosure of Invention
The utility model aims to solve the technical problems: aiming at the problems in the prior art, the utility model provides the portable overhauling, lifting and deformation preventing device for the stator of the hydroelectric generating set, which has high flexibility, high strength and high service efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a hydroelectric set generator stator overhauls lifts by crane preapring for an unfavorable turn of events shape device, includes detachable support frame, the edge of support frame is equipped with a plurality of locating plates, a plurality of locating plates are arranged on same circumferencial direction, install the connecting plate that is used for linking to each other with hydroelectric set generator stator on the locating plate, the inboard of connecting plate is inlayed and is equipped with a plurality of rotatable bolts, the bolt runs through the locating plate and with locating plate threaded connection in order to with interconnect between connecting plate and the support frame.
Optionally, a plurality of locating plates at the edge of the support frame are uniformly arranged at equal intervals.
Optionally, the plurality of positioning plates of the support frame form a plurality of groups of positioning plates by taking every two positioning plates as a group, and the two positioning plates of each group of positioning plates are positioned on the same straight line.
Optionally, four positioning plates are arranged at the edge of the supporting frame, and connecting lines of two positioning plates of the two groups of positioning plates are mutually perpendicular.
Optionally, the support frame includes detachable horizontal bracing piece, erects bracing piece and connecting piece, the middle part of horizontal bracing piece, erects the bracing piece and passes through connecting piece interconnect, the locating plate locates the both ends of horizontal bracing piece, erects the bracing piece respectively.
Optionally, the horizontal support rod and the vertical support rod are of a two-section structure, and the two sections of horizontal support rods are connected through a connecting piece, and the two sections of vertical support rods are connected through a connecting piece.
Optionally, a diagonal bracing rod is connected between the transverse bracing rod and the vertical bracing rod.
Optionally, the number of the diagonal bracing rods between the transverse bracing rods and the vertical bracing rods is four, and the diagonal bracing rods are arranged in a central symmetry manner relative to the connecting piece.
Optionally, detachable connecting seats are arranged on the transverse supporting rods and the vertical supporting rods, and two ends of the inclined pulling supporting rods are connected with the connecting seats through connecting pieces.
Compared with the prior art, the utility model has the advantages that:
1. the edge of the support frame is provided with a plurality of positioning plates, the positioning plates are arranged in the same circumferential direction, the positioning plates are provided with connecting plates for connecting with the generator stator of the hydro-generator set, the inner sides of the connecting plates are embedded with a plurality of rotatable bolts, the bolts penetrate through the positioning plates and are in threaded connection with the positioning plates to connect the connecting plates and the support frame with each other, the positioning plates can be uniformly connected with the generator stator of the hydro-generator set, the bolts between the positioning plates and the connecting plates can serve as jackscrews at the same time, the connection and fixation between the generator stator of the hydro-generator set and the support frame are realized, the stability is high, and the deformation or rotation caused by the stress of one end in the overhaul and lifting process can be effectively prevented.
2. The utility model comprises a detachable support frame, the support frame adopts a detachable movable design, and each part can be independently disassembled, so that the requirement on the size of the installation space is reduced, and the detachable support frame has the advantages of high flexibility, high strength, high use efficiency, portability in use and the like.
Drawings
Fig. 1 is a schematic view of a supporting frame according to an embodiment of the utility model.
Fig. 2 is a schematic front view of a positioning plate according to an embodiment of the utility model.
Fig. 3 is a schematic side view of a positioning plate according to an embodiment of the utility model.
Fig. 4 is a schematic diagram of a state structure during operation according to an embodiment of the present utility model.
Legend description: 1. a support frame; 101. a transverse support rod; 102. a vertical support rod; 103. a connecting piece; 104. a diagonal bracing rod; 105. a connecting seat; 11. a positioning plate; 2. a connecting plate; 21. and (5) a bolt.
Detailed Description
As shown in fig. 1 to 4, the device for preventing deformation during maintenance and lifting of a stator of a hydroelectric generating set according to the embodiment includes: the detachable support frame 1, the edge of support frame 1 is equipped with a plurality of locating plates 11, a plurality of locating plates 11 are arranged on same circumferencial direction, install the connecting plate 2 that is used for linking to each other with the hydroelectric set generator stator on the locating plate 11, the inboard of connecting plate 2 is inlayed and is equipped with a plurality of rotatable bolts 21, bolt 21 runs through locating plate 11 and with locating plate 11 threaded connection in order to link to each other between connecting plate 2 and the support frame 1, fine setting to connecting plate 2 is realized through rotating bolt 21, be fixed in the stator contact surface of connecting plate 2 lower extreme in order to realize fixed and deformation prevention to the connection of hydroelectric set generator stator, this embodiment hydroelectric set generator stator overhauls and lifts by crane deformation prevention device can evenly link to each other with the hydroelectric set generator stator through a plurality of locating plates 11, realize the connection between hydroelectric set generator stator, the support frame 1 is fixed, stability is high, can effectively prevent to produce deformation or rotation because of one end atress in the maintenance lifting by crane. The support frame 1 adopts a detachable movable design, and all parts can be independently disassembled and assembled, so that the requirement on the size of the installation space is reduced, and the support frame has the advantages of high flexibility, high strength, high use efficiency, portability in use and the like. And the support frame 1 adopts detachable movable design, is convenient for install and dismantle before lifting by crane and after lifting by crane, has greatly improved stator maintenance in-process maintenance efficiency, ensures the structural safety of stator body.
In this embodiment, the support frame 1 and the connecting plate 2 adopt Q235I-steel, and the material hardness is strong, can effectively promote hydroelectric set generator stator and overhaul and hoist the effect of preapring for an unfavorable turn of events.
As shown in fig. 2, 3 and 4, a plurality of positioning plates 11 at the edge of the support frame 1 in this embodiment are uniformly arranged at equal intervals, so as to ensure that the force applied to the stator of the hydro-generator set is uniform during the lifting process, and prevent the stator of the hydro-generator set from deforming.
As shown in fig. 1, 2 and 3, in the present embodiment, the plurality of positioning plates 11 of the supporting frame 1 take every two positioning plates 11 as a group to form a plurality of groups of positioning plates 11, and the two positioning plates 11 of each group of positioning plates 11 are located on the same straight line, so that the stress of the two positioning plates 11 on the same straight line passes through the center of the supporting frame 1, and the lifting deformation preventing effect is better; in fig. 3 a is the contact surface of the inner ring of the stator.
As shown in fig. 1, in this embodiment, four positioning plates 11 are disposed at the edge of the support frame 1, and connection lines of two positioning plates 11 of two groups of positioning plates 11 are disposed vertically to each other, so that the stator is prevented from being deformed transversely or longitudinally due to uneven stress in the overhauling and lifting process by fixing four fulcrums of the stator body.
As shown in fig. 1, in this embodiment, the support frame 1 includes a detachable horizontal support rod 101, a vertical support rod 102 and a connecting piece 103, the middle parts of the horizontal support rod 101 and the vertical support rod 102 are connected with each other through the connecting piece 103, the positioning plates 11 are respectively arranged at two ends of the horizontal support rod 101 and the vertical support rod 102, the fastening force of the bolts 21 is increased by supporting the inner ring of the stator through the connecting plate 2 through the adjusting bolts 21, and the cross structure formed by the horizontal support rod 101 and the vertical support rod 102 can realize accurate positioning of the deformation preventing device after the jacking in four directions is in place, so that the structure of the stator is more stable.
As shown in fig. 1, in this embodiment, the transverse support rods 101 and the vertical support rods 102 are both of two-section structure, and the transverse support rods 101 are connected through the connecting members 103, and the two sections of vertical support rods 102 are connected through the connecting members 103, so that the requirement on the size of the installation space is reduced due to the movable disassembly design. In a specific use process, the vertical support rod 102 is firstly lifted, the diameter of a bolt at the downstream side of the stator is measured, the vertical support rod 102 is finely adjusted according to the actual size of the stator in site, the upper connecting plate 2 and the lower connecting plate 2 of the vertical support rod 102 are welded after the adjustment is finished, and screws are screwed down and then fixed by jackscrews. The two-section type transverse supporting rod 101 is fixed with the vertical supporting rod 102 through a connecting piece 103, the assembled supporting frame 1 is installed on the deformation preventing device through a connecting plate 2, after the transverse supporting rod 101 is finely adjusted through measurement, two ends of the connecting plate 2 and the transverse supporting rod 101 are welded, after welding, screws at two ends are screwed up, and two supporting points of the deformation preventing device transverse supporting rod 101 are fixed through jackscrews at the connecting positions.
As shown in fig. 1, in this embodiment, a diagonal bracing rod 104 is connected between the transverse bracing rod 101 and the vertical bracing rod 102, so that structural reinforcement of a cross structure formed by the transverse bracing rod 101 and the vertical bracing rod 102 can be realized, and stress performance is better.
As shown in fig. 1, in this embodiment, the number of the diagonal support rods 104 between the horizontal support rods 101 and the vertical support rods 102 is four, and the diagonal support rods are symmetrically arranged in the center with respect to the connecting piece 103, so that the whole device forms a design of a cross and triangle combination, and the stability is high, and the stator can be effectively prevented from being deformed or rotated due to one end being stressed in the overhaul process.
As shown in fig. 1, in this embodiment, detachable connection seats 105 are provided on the horizontal support rods 101 and the vertical support rods 102, and two ends of the diagonal support rods 104 are connected with the connection seats 105 through connection pieces, so that the overall flexibility of the device is high, and the use is convenient.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (9)
1. The utility model provides a hydroelectric set generator stator overhauls lifts by crane preapring for an unfavorable turn of events shape device, a serial communication port, including detachable support frame (1), the edge of support frame (1) is equipped with a plurality of locating plates (11), a plurality of locating plates (11) are arranged on same circumferencial direction, install on locating plate (11) and be used for connecting plate (2) that link to each other with hydroelectric set generator stator, the inboard of connecting plate (2) is inlayed and is equipped with a plurality of rotatable bolts (21), bolt (21) run through locating plate (11) and with locating plate (11) threaded connection in order to with interconnect between connecting plate (2) and the support frame (1).
2. The overhauling, lifting and deformation preventing device for the generator stator of the hydroelectric generating set according to claim 1 is characterized in that a plurality of positioning plates (11) at the edge of the supporting frame (1) are uniformly distributed at equal intervals.
3. The overhauling, lifting and deformation preventing device for the stator of the generator of the hydroelectric generating set according to claim 2, wherein a plurality of positioning plates (11) of the supporting frame (1) form a plurality of groups of positioning plates (11) by taking every two positioning plates (11) as a group, and the two positioning plates (11) of each group of positioning plates (11) are positioned on the same straight line.
4. The overhauling, lifting and deformation preventing device for the generator stator of the hydroelectric generating set according to claim 3, wherein four positioning plates (11) are arranged on the edge of the supporting frame (1), and the connecting lines of the two positioning plates (11) of the two groups of positioning plates (11) are mutually perpendicular.
5. The overhauling, lifting and deformation preventing device for the generator stator of the hydroelectric generating set according to claim 4, wherein the supporting frame (1) comprises a detachable transverse supporting rod (101), a vertical supporting rod (102) and a connecting piece (103), the middle parts of the transverse supporting rod (101) and the vertical supporting rod (102) are connected with each other through the connecting piece (103), and the positioning plates (11) are respectively arranged at two ends of the transverse supporting rod (101) and the vertical supporting rod (102).
6. The overhauling, lifting and deformation preventing device for the generator stator of the hydroelectric generating set according to claim 5, wherein the transverse supporting rods (101) and the vertical supporting rods (102) are of two-section structures, the two sections of the transverse supporting rods (101) are connected through a connecting piece (103), and the two sections of the vertical supporting rods (102) are connected through the connecting piece (103).
7. The overhauling, lifting and anti-deformation device for the generator stator of the hydroelectric generating set according to claim 6, wherein a diagonal bracing rod (104) is connected between the horizontal bracing rod (101) and the vertical bracing rod (102).
8. The overhauling, lifting and deformation preventing device for the stator of the generator of the hydroelectric generating set according to claim 7, wherein the number of the inclined supporting rods (104) between the transverse supporting rods (101) and the vertical supporting rods (102) is four, and the inclined supporting rods are arranged in a central symmetry manner relative to the connecting piece (103).
9. The overhauling, lifting and anti-deformation device for the generator stator of the hydroelectric generating set according to claim 8, wherein detachable connecting seats (105) are arranged on the transverse supporting rods (101) and the vertical supporting rods (102), and two ends of each inclined supporting rod (104) are connected with the connecting seats (105) through connecting pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320595498.5U CN220596788U (en) | 2023-03-22 | 2023-03-22 | Hydroelectric set generator stator overhauls and lifts by crane anti-deformation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320595498.5U CN220596788U (en) | 2023-03-22 | 2023-03-22 | Hydroelectric set generator stator overhauls and lifts by crane anti-deformation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220596788U true CN220596788U (en) | 2024-03-15 |
Family
ID=90181063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320595498.5U Active CN220596788U (en) | 2023-03-22 | 2023-03-22 | Hydroelectric set generator stator overhauls and lifts by crane anti-deformation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220596788U (en) |
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2023
- 2023-03-22 CN CN202320595498.5U patent/CN220596788U/en active Active
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