CN116545186B

CN116545186B - An annular slide car working vehicle used for generator stator maintenance

Info

Publication number: CN116545186B
Application number: CN202310455941.3A
Authority: CN
Inventors: 韩越; 耿乾坤; 董晓英; 朱君; 褚建华; 敖帮杰; 邓海刚; 洪云鹏; 何册; 甘泉; 匡润; 成佳; 王飞龙
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2024-03-29
Anticipated expiration: 2043-04-25
Also published as: CN116545186A

Abstract

The utility model provides an annular slide rail car operation car for generator stator overhauls, includes evenly distributed in the generator stator base buttress in the generator stator outside, has erect annular track on motor stator base buttress, is equipped with the coaster on annular track, and the fixed vestibule that is equipped with on the coaster, the outside end of vestibule is connected with the cat ladder, and the cat ladder is used for connecting vestibule and ground, and the inboard end of vestibule is connected with stator overhauls the device. The invention provides an annular sliding rail car working vehicle for overhauling a generator stator, which simplifies an overhauling structure, improves overhauling efficiency and reduces overhauling risks.

Description

Annular sliding rail car operation vehicle for overhauling generator stator

Technical Field

The invention relates to the technical field of overhauling of large-sized hydraulic generator stators, in particular to an annular sliding rail car working vehicle for overhauling of generator stators.

Background

As shown in FIG. 1, the large-scale hydraulic generator is installed in a foundation pit below the ground of a factory building, and as the large-scale hydraulic generator sets are all arranged in a specific space, stator maintenance needs to be carried out in the foundation pit, a relevant annular operation bent frame or platform is erected, and in the past, the stator maintenance platform is generally a fixed annular platform formed by building metal rods, fasteners, buckle plates and the like. The bent frame not only can not be freely adjusted in height, but also has overlarge occupied space, and can lead to complex operation environment, meanwhile, the assembly and disassembly difficulty and the engineering quantity are extremely large due to the fact that the assembly and disassembly are numerous, the time for assembling and disassembling a large-sized generator stator bent frame is generally about two weeks, the overhaul period of equipment is often influenced, and meanwhile, due to the lack of universality, different overhaul platforms are generally required for units with different sizes, so that the tooling is complicated. Therefore, the movable operation vehicle which is convenient to erect, small in occupied space, capable of freely adjusting the height and the position and with certain universality is required to be designed, so that the requirement of maintenance operation of the unit stator is fully met, and the technical problem of construction operation of specific environments such as a generator stator is effectively solved.

Disclosure of Invention

The invention aims to solve the technical problem of providing the annular sliding rail car working vehicle for overhauling the stator of the generator, which simplifies the overhauling structure, improves the overhauling efficiency and reduces the overhauling risk.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an annular slide rail car operation car for generator stator overhauls, includes evenly distributed in the generator stator base buttress in the generator stator outside, has erect annular track on motor stator base buttress, is equipped with the coaster on annular track, and the fixed vestibule that is equipped with on the coaster, the outside end of vestibule is connected with the cat ladder, and the cat ladder is used for connecting vestibule and ground, and the inboard end of vestibule is connected with stator overhauls the device.

Preferably, the stator overhauling device comprises an overhauling frame which extends downwards to the bottom of the inner side of the stator of the generator, a lift car is arranged in the overhauling frame, and a hoisting device for driving the lift car to move up and down is arranged at the top of the overhauling frame.

Preferably, a buffer block for preventing the car from falling is arranged at the bottom of the inner side of the overhaul frame.

Preferably, a protective fence is further arranged in the overhaul frame.

Preferably, the bottom of vestibule outside end is equipped with the balancing weight that is used for balanced maintenance device.

Preferably, the bottom of the pulley is provided with a driving wheel which is horizontally arranged and is contacted with the upper surface of the annular track, and the pulley further comprises a motor for driving the driving wheel to rotate.

Preferably, the annular track adopts a C-shaped guide rail, and limit wheels are arranged on two sides below the driving wheel and are matched with grooves of the C-shaped guide rail.

Preferably, the winding device and the pulley are connected with the control system in a wired or wireless way.

The invention provides an annular sliding rail car working vehicle for overhauling a generator stator, which has the following beneficial effects:

1. the annular sliding rail operation vehicle is fixed on the horizontally symmetrical base buttresses through the bolts, so that the manufacturing cost is greatly reduced, and the installation quality and stability of the sliding rail can be fully ensured; because the maintenance of other equipment of the unit is not affected at all, only the crane is required to be disassembled and assembled once, and because the structure is simple, the whole operation vehicle is erected for only 1 day so as to fully utilize the maintenance period.

2. The annular slide rail operation vehicle is complete in function, the occupied space of the annular slide rail operation vehicle is reduced to the greatest extent, the site space can be fully utilized for construction operation, the defects of a traditional fixed operation platform are completely eliminated, and the construction operation under complex or special environments is simplified, so that the overhaul requirement is better met.

3. The counterweight frame and the C-shaped guide rail are adopted, so that the derailment and tilting of the lift car can be completely avoided, and the safety of operators and equipment is fully ensured by adopting corresponding protective measures.

4. The operation vehicle effectively solves the technical problems of erection of the maintenance platform of the generator and maintenance of the stator, ensures that related construction operation is safer, more efficient and more convenient, can be popularized and applied to the related construction operation of a power station, and has novelty, innovation and practicability.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic diagram of the structure of the present invention;

FIG. 3 is a schematic view of the maintenance device of the present invention;

FIG. 4 is a schematic view of the internal structure of the inspection apparatus of the present invention;

FIG. 5 is a schematic view of the bottom structure of the sled of the present invention;

fig. 6 is a schematic view of the structure of the present invention in use.

Detailed Description

As shown in fig. 2, an annular slide rail car operation vehicle for overhauling a generator stator comprises generator stator base support piers 1 uniformly distributed on the outer side of the generator stator, annular tracks 2 are erected on the generator stator base support piers 1, pulleys 3 are arranged on the annular tracks 2, a corridor 4 is fixedly arranged on the pulleys 3, the outer side end of the corridor 4 is connected with a ladder stand 5, the ladder stand 5 is used for connecting the corridor 4 with the ground, and the inner side end of the corridor 4 is connected with a stator overhauling device.

Preferably, as shown in fig. 3 and 4, the stator maintenance device comprises a maintenance frame 6 extending downwards to the bottom of the inner side of the stator of the generator, a car 7 is arranged in the maintenance frame 6, and a hoisting device 8 for driving the car 7 to move up and down is arranged at the top of the maintenance frame 6.

Preferably, a buffer block 13 for preventing the car 7 from falling is arranged at the bottom of the inner side of the maintenance frame 6.

Preferably, a protective fence 9 is also arranged in the overhaul frame 6.

Preferably, the bottom of the outer side end of the corridor 4 is provided with a balancing weight 10 for balancing the overhaul device.

Preferably, as shown in fig. 5, the bottom of the pulley 3 is provided with a driving wheel 11, the driving wheel 11 is horizontally arranged and contacts with the upper surface of the circular track 2, and a motor 12 for driving the driving wheel 11 to rotate is further included.

Preferably, the annular track 2 adopts a C-shaped guide rail, and limit wheels 12 are arranged on two sides below the driving wheel 11, and the limit wheels 12 are matched with grooves of the C-shaped guide rail.

Preferably, the winding device 8 and the pulley 3 are connected with a control system in a wired or wireless manner.

When the elevator is used, as shown in fig. 6, the annular track 2 is arranged on the stator frame buttress of the generator set, so that the level and roundness of the sliding rail are fully ensured, the pulley of the horizontal support of the elevator car is sleeved on the annular sliding rail, the ladder stand is connected to the ground, the corresponding balancing weights are arranged, the buffer block, the anti-falling device and other protection devices are connected, the corresponding power supply is connected, the corridor is arranged, an operator can enter the elevator car from the corridor, the elevator car is operated on the horizontal sliding rail through the operation of the operation panel inside or outside the elevator car, the movable platform is controlled to move up and down inside the elevator car, the maintenance of the stator bar and the iron core can be carried out, and the operator can simultaneously construct and operate by means of a plurality of independent movable elevator cars according to actual needs. In addition, a bottom annular slide rail can be additionally arranged if necessary, so that the lift car can run on the upper annular slide rail and the lower annular slide rail.

In order to meet the requirement of stator overhaul, the load of a single lift car and a slide rail is not lower than 500kg, the lift car and a stator are kept at a proper distance (about 20 cm), the highest position of a platform in the lift car is lower than the upper end of a stator bar by about 1.2 m and lower than the lower end of a bar insulation box by about 20cm, so that the influence of ground objects is avoided; in order to ensure that the horizontal pull rod is effectively connected with the annular slide rail, the length of the horizontal pull rod can be adjusted through threads.

The device simplifies and tool structure by the annular slide rail lifting operation vehicle, reduces the space occupied by the tool, realizes light weight of equipment, simplifies the maintenance environment of the stator of the generator set to the greatest extent, effectively reduces the difficulty and the engineering quantity of tool assembly and disassembly, shortens the time required by tool assembly and disassembly, and simultaneously effectively reduces the risks in tool assembly and disassembly and stator maintenance; and moreover, operators can freely translate by means of the annular sliding rail and can vertically move in the car so as to fully utilize the field space to perform construction operation, and the equipment maintenance requirement is met. Meanwhile, the flexibility and the maneuverability of the operation platform are improved, the operation of a single vehicle can be performed according to the field requirements, and the simultaneous operation of multiple vehicles can be performed simultaneously, so that the tool automation is realized.

The above embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.

Claims

1. A circular slide rail car work vehicle for generator stator maintenance, comprising generator stator base piers (1) evenly distributed on the outside of the generator stator, characterized in that: a circular track (2) is mounted on the motor stator base pier (1), a pulley (3) is provided on the circular track (2), a corridor (4) is fixed on the pulley (3), the outer end of the corridor (4) is connected to a ladder (5), the ladder (5) is used to connect the corridor (4) and the ground, and the inner end of the corridor (4) is connected to a stator maintenance device;

The stator inspection device includes an inspection frame (6) extending downward to the inner bottom of the generator stator. A car (7) is provided in the inspection frame (6), and a car (7) is provided on the top of the inspection frame (6) for driving the car. The hoisting device (8) that moves the carriage (7) up and down;

The bottom of the outer end of the corridor (4) is provided with a counterweight block (10) for balancing the maintenance device.

2. The annular slide rail car work vehicle for generator stator maintenance according to claim 1, characterized in that a buffer block (13) for preventing the car (7) from falling is provided at the bottom of the inner side of the maintenance frame (6).

3. An annular slide rail car working vehicle for generator stator maintenance according to claim 1 or 2, characterized in that: the maintenance frame (6) is also equipped with a protective fence (9).

4. An annular slide car working vehicle for generator stator maintenance according to claim 1, characterized in that: the bottom of the pulley (3) is provided with a driving wheel (11), and the driving wheel (11) It is arranged horizontally, in contact with the upper surface of the circular track (2), and also includes a motor (12) for driving the driving wheel (11) to rotate.

5. An annular slide car operating vehicle for generator stator maintenance according to claim 3, characterized in that: the annular track (2) adopts a C-shaped guide rail, and the Limit wheels (12) are provided on both sides, and the limit wheels (12) match the grooves of the C-shaped guide rail.

6. An annular slide car operating vehicle for generator stator maintenance according to claim 1, characterized in that: the hoisting device (8) and the pulley (3) are connected to the control system via wired or wireless connections.