CN116986512A - Generator rotor traction rail car - Google Patents

Generator rotor traction rail car Download PDF

Info

Publication number
CN116986512A
CN116986512A CN202310650185.XA CN202310650185A CN116986512A CN 116986512 A CN116986512 A CN 116986512A CN 202310650185 A CN202310650185 A CN 202310650185A CN 116986512 A CN116986512 A CN 116986512A
Authority
CN
China
Prior art keywords
rotor
support
supporting
generator rotor
rail car
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.)
Pending
Application number
CN202310650185.XA
Other languages
Chinese (zh)
Inventor
林觉吉
黄修喜
陈贞良
伊朝品
刘斌
林河
刘德干
蔡琼锋
肖刚
蔡小燕
冯健生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfang Power Plant of Huaneng Hainan Power Generation Co Ltd
Original Assignee
Dongfang Power Plant of Huaneng Hainan Power Generation Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongfang Power Plant of Huaneng Hainan Power Generation Co Ltd filed Critical Dongfang Power Plant of Huaneng Hainan Power Generation Co Ltd
Priority to CN202310650185.XA priority Critical patent/CN116986512A/en
Publication of CN116986512A publication Critical patent/CN116986512A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D45/00—Means or devices for securing or supporting the cargo, including protection against shocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The invention discloses a generator rotor traction rail car which comprises a bottom plate, wherein a supporting frame is arranged at the upper end of the bottom plate, an adjusting hole is formed in the supporting frame, an adjusting rod penetrates through the adjusting hole, and a rotor supporting piece is arranged at the upper end of the adjusting rod; the lower end of the bottom plate is connected with a movable wheel. Set up two sets of support frames on the bottom plate, the support frame is used for supporting rotor support piece, rotor support piece is used for rotor direct contact and supports it, regulation pole on the support frame can adjust its height, when adjusting nut rotates from top to bottom, can drive support piece reciprocates, and be equipped with two-way jack cooperation support, can realize that generator rotor traction railcar support height can be adjusted, the bearing adjustment of generator rotor traction railcar is high convenient, the operation is simple, avoid bumping between rotor and the stator, after the altitude mixture control is suitable simultaneously, utilize traction railcar sliding function, replace driving to lift the rotor and pull, optimize the generator and take out, wear rotor operation mode, simplify the construction step, reduce the operation risk, improve work efficiency, the improvement efficiency of the generator rotor operation of taking out has been realized.

Description

Generator rotor traction rail car
Technical Field
The invention belongs to the technical field of generator overhaul, and relates to a generator rotor traction rail car.
Background
In the process of rotor pulling and penetrating operation, in order to enable a rotor lifting point to be changed from a lifting end to a gravity center (the lifting point is changed from the gravity center to the lifting end when the rotor is penetrated), the rotor needs to be lowered, a rotor steam end is stressed by a sliding block in a chamber, the lifting end is supported on a stacked sleeper, when the lifting point is shifted and then lifted again, the height of the sleeper is fixed and cannot be adjusted, when the rotor level is adjusted and the rotor lifting end supporting height is changed, the rotor needs to be lifted for many times, and a board is padded below the rotor to adjust the rotor level.
Disclosure of Invention
The invention aims to solve the problems of inconvenient adjustment of the supporting height of a rotor, high operation difficulty and the like in the lifting process of the rotor in the drawing and penetrating manner of the generator in the prior art, and provides the generator rotor traction rail car which can move while supporting, so that the supporting height of the rotor can be adjusted, the movement of the rotor can be realized while supporting, the working mode of the rotor drawing and penetrating of the generator is optimized, the crane lifting is not needed, the operation difficulty is reduced, and the safety and the efficiency of the operation are improved.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the generator rotor traction rail car comprises a bottom plate, wherein a supporting frame is arranged at the upper end of the bottom plate, an adjusting hole is formed in the supporting frame, an adjusting rod penetrates through the adjusting hole, and a rotor supporting piece is arranged at the upper end of the adjusting rod;
the lower end of the bottom plate is connected with a movable wheel.
The invention further improves that:
two groups of support frames are transversely arranged at intervals.
And a bidirectional jack is further arranged between the two supporting frames.
The support frame is welded with the bottom plate.
The adjusting rod is a screw, and a nut is sleeved on the outer side of the screw.
The support frame includes the supporting leg, the supporting leg lower extreme is connected with the bottom plate, and the backup pad is connected to the upper end, the connecting hole is seted up in the backup pad.
The support piece comprises a first support part, the first support part is connected with the upper end of the adjusting rod, and the upper end of the first support part is connected with a second support part.
The upper end of the second supporting part is provided with a groove.
The groove is of an arc-shaped structure.
And damping rubber strips are arranged in the grooves.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a generator rotor traction rail car, which is characterized in that a supporting frame is arranged on a bottom plate, the supporting frame is used for supporting a rotor supporting piece, the rotor supporting piece is used for being in direct contact with a rotor and supporting the rotor supporting piece, the height of an adjusting rod on the supporting frame can be adjusted, when the axial height of the adjusting rod is changed, the supporting piece can be driven to move up and down, the supporting piece can conveniently adjust the supporting height according to the condition of the rotor, the height is convenient to adjust, the operation is simple, the rotor is not required to be lifted, the collision between the rotor and a stator is avoided, and the safety of the operation is improved.
Furthermore, in the invention, the two groups of support frames jointly form support for the support piece, so that the stability of the bottom support is improved.
Furthermore, in the invention, the bidirectional jack is arranged between the two supporting frames, when the height of the supporting piece is required to be adjusted, the jack can assist to push the supporting piece upwards, and the supporting buffer function in one place can be realized during downward adjustment, so that the inconvenience caused by overlarge gravity and the inconvenience caused by adjustment of the adjusting rod can be avoided.
Furthermore, in the invention, the welding of the support frame and the bottom plate increases the stability of connection and improves the integral support strength.
Further, in the invention, the upper end of the second supporting part is provided with the groove, so that the rotor is prevented from being separated from the supporting part in the drawing process, rollover is prevented from occurring, the rotor is restrained, swing of the rotor is prevented, and the supporting reliability is improved.
Further, in the invention, the grooves are of arc structures, so that the collision with the surface of the rotor is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a diagram of the mating structure of the support frame, support member and jack of the present invention;
FIG. 3 is a diagram of the structure of the base plate of the present invention;
fig. 4 is a use state diagram of the present invention.
Wherein: 1-a supporting plate; 2-a bottom plate; 3-supporting frames; 4-moving wheels; 5-jack; 6-supporting frames; 7-adjusting the rod; 8-a first support; 9-a second support.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1, the embodiment of the invention discloses a generator rotor traction rail car, which comprises a bottom plate 2, wherein a support frame 6 is arranged at the upper end of the bottom plate 2, an adjusting hole is formed in the support frame 6, an adjusting rod 7 penetrates through the adjusting hole, and a rotor supporting piece 3 is arranged at the upper end of the adjusting rod 7; the lower end of the bottom plate 2 is connected with a movable wheel 4.
Referring to fig. 1 to 2, in a further embodiment of the present invention, two sets of support frames 6 are provided, the two sets of support members 6 are distributed laterally at intervals, and a jack 5 is provided between the two sets of support frames 6, and when a certain height is required, the jack 5 can cooperate to jack up the support members 3, and then the height is adjusted by adjusting the nuts of the rods 7.
Further, in the embodiment of the invention, the adjusting rod 7 is a screw, two groups of nuts are sleeved on the outer side of the screw, when the nuts are rotated clockwise or anticlockwise, the screw can be driven to move up and down, the height of the supporting piece 3 is adjusted, when the height is required to be adjusted, the supporting piece 3 is firstly jacked up through the jack 5, the jack 5 forms a supporting bracket at the moment, then the screw is adjusted to the matched height, the nuts are screwed down, the adjusting rod 7 is fixed, the adjusting rod 7 and the jack 5 are matched and supported together, the reliability of supporting the rotor is improved, and similarly, when the supporting height of the rotor is required to be reduced, the nuts are loosened, the jack is adjusted downwards, the supporting piece 3 is slowly lowered to the proper height, then the nuts are screwed down, the independent supporting adjustment of the height is realized, the matching of the jack 5 and the adjusting rod 7 is realized, the swinging amplitude of the rotor in the lifting process is smaller, the accurate supporting height of the rotor is adjusted, the phenomenon that the stator and the rotor collide with equipment is avoided, the phenomenon that the rotor is rocked in the dismantling process is also reduced, and the risk of colliding damage to the stator is reduced.
Further, in the embodiment of the invention, the supporting frame 6 comprises supporting legs at the bottom and a supporting plate 1 at the upper end, the supporting legs are provided with four supporting legs, the gaps at the lower ends of the four supporting legs are larger than the gaps at the upper end, a conical structure is integrally formed, the supporting stability is improved, and the connecting holes are formed at positions, close to the center, of the supporting plate 1.
Further, in the embodiment of the present invention, the lower ends of the supporting legs are welded to the bottom plate 2, and the upper ends are welded to the supporting plate 1.
Further, in the embodiment of the present invention, the structure of the supporting member 3 is:
the support 3 comprises a first support part 8 at the bottom, the lower end of the first support part is connected with the upper end of the adjusting rod 7, the upper end of the first support part 8 is connected with a second support part 9, and the second support part 9 is used for supporting the rotor to be disassembled.
Further, in the embodiment of the invention, the upper end of the second supporting part 9 is provided with a groove, and the groove can firmly and reliably support the rotor without shaking, so that the accident of the rotor overturning and crashing equipment caused by unstable sleeper support can be avoided.
Further, in the embodiment of the invention, the structure of the groove is in a circular arc structure, the circular arc structure is more matched with the structure of the rotor, and the rotor is prevented from being knocked by slight swing while the rotor is prevented from being laterally turned.
Furthermore, in the embodiment of the invention, the damping rubber strips are also fixed on the inner wall of the groove, so that the abrasion to the rotor is reduced.
Furthermore, in the embodiment of the invention, the groove is also provided with the matched anchor ear, when the rotor is placed in the groove, the anchor ear is sleeved outside the rotor and then is matched and connected with the groove, and the rotor is fixed between the anchor ear and the groove.
Referring to fig. 3, in a further embodiment of the present invention, a plurality of moving wheels 4 are disposed at the lower end of the bottom plate, and a connecting plate is disposed at the upper end of the moving wheel 4, and the connecting plate is connected with the bottom plate 2 through bolts.
Referring to fig. 4, the working principle of the embodiment of the present invention is:
when the rotor needs to be extracted from the generator bore:
a track set is arranged on one side of the generator set, the railway vehicle is placed on the track set, nuts on the adjusting rods 7 are loosened firstly, and then the jack 5 is adjusted upwards or downwards, so that the jack 5 can jack up the supporting piece 3 until the supporting piece 3 reaches the required height;
further, the rail car is moved to the lower part of the supporting part of the generator rotor (excitation end), the generator rotor is attached to the second supporting part 9 on the supporting piece 3, and then the anchor ear matched with the groove is assembled;
further, the jack 5 is lifted upwards, and after the supporting piece 3 is pushed to reach a proper height, the nut on the adjusting rod 7 is locked;
in the process, the jack 5, the adjusting rod 7 and the nut support the rotor together, so that the supporting rigidity is increased, and the jack 5 and the adjusting rod are matched, and the rotor is prevented from swinging due to sudden pressure relief of the jack 5 and is prevented from colliding with the stator;
further, after the rotor supports steadily, the traction device can be used for traction of the rotor to draw outwards the bore, at the moment, the rail car can move on the rail set along with the rotor until the rotor is drawn out of the lifting position outside the bore, the whole process does not need traveling crane to lift the rotor, the rotor drawing step is reduced, and the operation difficulty and risk are reduced.
When the rotor needs to be penetrated:
the rotor to be penetrated is hung to a specified penetrating position, namely, the rotor steam end falls into an inner journal sliding block (equipment prepared by the prior art) in the bore to bear force;
further placing the carrier on the track set, firstly loosening nuts on the adjusting rods 7, and then adjusting the jacks 5 upwards or downwards to enable the jacks 5 to jack up the supporting pieces 3 until the supporting pieces 3 reach the required height;
further, the rail car is moved to the position below a supporting part of a generator rotor (excitation end), the generator rotor is lowered to enable the excitation end of the rotor to be attached to a second supporting part 9 on the supporting piece 3, and then the anchor clamps matched with the grooves are assembled;
further, the jack 5 is lifted upwards, and after the supporting piece 3 is pushed to reach a proper height, the nut on the adjusting rod 7 is locked;
further, after the rotor support is stable, the railcar moves and pulls the rotor through the stator bore until the rotor reaches the designated position.
In the embodiment of the invention, the jack 5 is a 100T bidirectional hydraulic jack with a stroke of 150 mm.
In use, the device disclosed by the invention can realize the horizontal adjustment of the rotor support only by one person, realizes the one-time adjustment of the support height in place, shortens the horizontal operation time of the rotor, has a conical overall structure, concentrates stress and improves the stability of the support, and the operation time is only 8 minutes.
The device is provided with a bearing adjusting function, the height of the rotor can be adjusted randomly along with the design height range of the jack and the threaded rod by matching and adjusting the height of the jack, the threaded rod and the nut set to the required height, the rotor level of the generator can be adjusted in place rapidly and safely when the generator is pulled out and penetrated, the traction rail car sliding function is utilized to pull the rotor, the crane is replaced to lift the rotor for traction, the defect of repeated lifting adjustment when a sleeper is used for supporting is overcome, the operation mode of pulling out and penetrating the rotor of the generator is optimized, the construction steps are simplified, the operation risk is reduced, the working efficiency is improved, the operation nodes of pulling out and penetrating the rotor of the generator are guaranteed, and the development of the technology of pulling out and penetrating the rotor for overhauling the generator is promoted.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The generator rotor traction rail car is characterized by comprising a bottom plate (2), wherein a supporting frame (6) is arranged at the upper end of the bottom plate (2), an adjusting hole is formed in the supporting frame (6), an adjusting rod (7) penetrates through the adjusting hole, and a rotor supporting piece (3) is arranged at the upper end of the adjusting rod (7);
the lower end of the bottom plate (2) is connected with a movable wheel (4).
2. A generator rotor traction rail car according to claim 1, characterized in that the support frames (6) are arranged in two groups at intervals laterally.
3. A generator rotor traction rail car according to claim 2, characterized in that a bi-directional jack (5) is also arranged between the two support frames (6).
4. A generator rotor traction rail car according to claim 1, characterized in that the support frame (6) is welded to the bedplate (2).
5. The generator rotor traction rail car according to claim 4, characterized in that the adjusting rod (7) is a screw, and a nut is sleeved on the outer side of the screw.
6. A generator rotor traction rail car as claimed in claim 4, wherein the support frame (6) comprises support legs, the lower ends of the support legs are connected with the base plate (2), the upper ends of the support legs are connected with the support plate (1), and the connecting holes are formed in the support plate (1).
7. A generator rotor traction rail car according to claim 1, characterized in that the support (3) comprises a first support part (8), the first support part (8) being connected with the upper end of the adjustment rod (7), the upper end of the first support part (8) being connected with a second support part (9).
8. A generator rotor traction rail car according to claim 7, characterized in that the second support part (9) is provided with a recess at its upper end.
9. The generator rotor traction rail car of claim 8, wherein said grooves are arcuate in configuration.
10. The generator rotor traction rail car of claim 8, wherein a shock absorbing adhesive strip is disposed in the groove.
CN202310650185.XA 2023-05-31 2023-05-31 Generator rotor traction rail car Pending CN116986512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310650185.XA CN116986512A (en) 2023-05-31 2023-05-31 Generator rotor traction rail car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310650185.XA CN116986512A (en) 2023-05-31 2023-05-31 Generator rotor traction rail car

Publications (1)

Publication Number Publication Date
CN116986512A true CN116986512A (en) 2023-11-03

Family

ID=88520229

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310650185.XA Pending CN116986512A (en) 2023-05-31 2023-05-31 Generator rotor traction rail car

Country Status (1)

Country Link
CN (1) CN116986512A (en)

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