Generator maintenance shifting device

Abstract

The utility model relates to the technical field of generator maintenance, and particularly discloses a generator maintenance shifting device which comprises a base, a rail car is arranged on the inner wall of the base through a driving mechanism, and a supporting plate is arranged on the upper side of the rail car through a jacking mechanism. The jacking mechanism comprises four sliding rods which are fixedly connected to the upper end face of the rail car and the lower end face of the supporting plate through lug plates, sliding plates are slidably connected to the outer walls of the two sliding rods located at the same height, and two scissor type telescopic frames are movably connected to the outer walls of the two sliding plates, the rail car and the supporting plate through hinged supports. A hydraulic cylinder is installed on the upper end face of the rail car, the output end of the hydraulic cylinder is fixedly connected with a sliding plate on the lower side, through the jacking and driving mechanism, stable and accurate movement of the generator between a maintenance position and an original position is achieved, dependence on cooperation of a crane is thoroughly eliminated, the alignment problem caused by swinging of a lifting rope and non-precise control is solved, and the production efficiency is improved. The maintenance period is greatly shortened, and the overall installation progress of a power plant is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of generator maintenance technology, and specifically discloses a generator maintenance relocation device. Background Technology

[0002] For example, a twin-shaft generator, being a large generator, requires on-site overhaul because it has rotors connected to both ends. This makes it impossible to remove the rotors from their original location during overhaul, necessitating the entire generator being lifted off its original position. This requires the power plant to equip itself with heavy-duty overhead cranes, increasing construction costs. After the generator overhaul is completed, it needs to be moved back to its original position. Once in place, the generator requires alignment. If alignment is time-consuming and inefficient, it will delay the overall installation progress of the power plant. Therefore, the rationality of the generator adjustment device design directly affects the overall construction of the power plant.

[0003] The existing twin-shaft extension generator requires the use of a crane for fine-tuning and alignment after maintenance. Due to factors such as excessively long lifting ropes and difficulty in controlling the crane motor, the adjustment accuracy is often not high. This increases the difficulty of adjustment and the workload of construction personnel during on-site operation, delays the construction progress, and affects the normal progress of installation work. Therefore, a generator maintenance and relocation device is needed to solve this problem. Utility Model Content

[0004] This invention proposes a generator maintenance and relocation device, which, through integrated lifting and precise drive design, replaces a heavy-duty trolley to achieve safe generator relocation and millimeter-level alignment, significantly reducing power plant construction costs and improving maintenance efficiency.

[0005] This utility model is implemented as follows: a generator maintenance and relocation device includes a base. A railcar is mounted on the inner wall of the base via a drive mechanism. A support plate is mounted on the upper side of the railcar via a lifting mechanism. The lifting mechanism includes four sliding rods fixedly connected to the upper end face of the railcar and the lower end face of the support plate via ear plates. Slide plates are slidably connected to the outer walls of two sliding rods at the same height. Two symmetrically distributed scissor-type telescopic frames are movably connected to the outer walls of the two slide plates, the railcar, and the support plate via hinges. A hydraulic cylinder is installed on the upper end face of the railcar, and the output end of the hydraulic cylinder is fixedly connected to the lower slide plate.

[0006] As a preferred embodiment of the generator maintenance and relocation device of this utility model, the drive mechanism includes two rotating shafts rotatably connected to the inner wall of the base, sprockets fixedly connected to the outer walls of the two rotating shafts, chains meshing with the outer walls of the two sprockets, the track car fixedly connected to the chain, and a servo motor with its output end fixedly connected to one of the rotating shafts installed on the outer wall of the base.

[0007] As a preferred embodiment of the generator maintenance and relocation device of this utility model, the inner wall of the base is provided with two slide rails arranged along its length, and the rollers of the track vehicle are slidably connected to the slide rails.

[0008] As a preferred embodiment of the generator maintenance and relocation device of this utility model, the base is pre-embedded in the civil engineering platform of the generator, and the generator is detachably connected to the upper end face of the base by bolts.

[0009] As a preferred embodiment of the generator maintenance and relocation device of this utility model, a rubber pad is provided on the upper end surface of the tray.

[0010] As a preferred embodiment of the generator maintenance and relocation device of this utility model, a controller is provided on the outer wall of the base, and the servo motor and hydraulic cylinder are both electrically connected to the controller.

[0011] The beneficial effects of this utility model are:

[0012] 1. Through the lifting and drive mechanism, the generator can be moved smoothly and accurately between the maintenance position and the original position, completely eliminating the dependence on the crane, solving the alignment problem caused by the swing of the hoisting rope and the lack of precise control, greatly shortening the maintenance period and ensuring the overall installation progress of the power plant.

[0013] 2. This device provides an alternative to large-tonnage overhead cranes, avoiding the need to purchase, install, and maintain expensive large-scale lifting equipment for a single maintenance task, and directly reducing the initial construction investment and long-term operation and maintenance costs of the power plant. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is an overall structural diagram of a generator maintenance and relocation device according to the present invention.

[0016] Figure 2 This is a structural diagram of the base of this utility model.

[0017] Figure 3 This is a structural diagram of the lifting mechanism of this utility model.

[0018] The markings in the diagram are: 1. Base; 2. Railcar; 3. Pallet; 4. Slide rail; 5. Shaft; 6. Sprocket; 7. Chain; 8. Servo motor; 9. Slide rod; 10. Slide plate; 11. Scissor-type telescopic frame; 12. Hydraulic cylinder. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0020] Please see Figure 1-3 A generator maintenance and relocation device includes a base 1. A railcar 2 is mounted on the inner wall of the base 1 via a drive mechanism. A support plate 3 is mounted on the upper side of the railcar 2 via a lifting mechanism. The lifting mechanism includes four sliding rods 9 fixedly connected to the upper end face of the railcar 2 and the lower end face of the support plate 3 via ear plates. Slide plates 10 are slidably connected to the outer walls of two sliding rods 9 at the same height. Two symmetrically distributed scissor-type telescopic frames 11 are movably connected to the two slide plates 10 and the outer walls of the railcar 2 and the support plate 3 via hinges. A hydraulic cylinder 12 is installed on the upper end face of the railcar 2, and the output end of the hydraulic cylinder 12 is fixedly connected to the lower slide plate 10.

[0021] In this embodiment: The hydraulic cylinder 12 is activated, causing the lower sliding plate 10 to move to the left. This, in turn, causes the scissor-type telescopic frame 11 to move the pallet 3 upward, thereby lifting the generator upward. Then, the drive mechanism drives the railcar 2 to move to the left, moving the generator to a position convenient for maintenance. After maintenance, the operation is reversed. The drive mechanism returns the generator to its original position, and the hydraulic cylinder 12 lowers the pallet 3, placing the generator back on the base 1. Finally, the bolts between the generator and the base 1 are tightened. This invention, through the drive mechanism and the lifting mechanism, achieves automated, precise, and safe generator relocation, significantly improving maintenance efficiency and reducing operational risks.

[0022] As a technical optimization of this utility model, the drive mechanism includes two rotating shafts 5 rotatably connected to the inner wall of the base 1, sprockets 6 are fixedly connected to the outer walls of the two rotating shafts 5, chains 7 are meshed with the outer walls of the two sprockets 6, the track car 2 is fixedly connected to the chain 7, and a servo motor 8 with its output end fixedly connected to one of the rotating shafts 5 is installed on the outer wall of the base 1.

[0023] In this embodiment: the servo motor 8 is started, which drives one of the rotating shafts 5 to rotate, and then drives the chain 7 to rotate through the sprocket 6. The chain 7 further drives the railcar 2 to move, providing the railcar 2 with a stable, controllable and powerful traction force, and realizing the precise and smooth relocation of the generator.

[0024] As a technical optimization of this utility model, the inner wall of the base 1 is provided with two slide rails 4 arranged along its length, and the rollers of the track car 2 are slidably connected to the slide rails 4.

[0025] In this embodiment, the slide rail 4 facilitates the limiting of the railcar 2, thereby stabilizing the movement of the railcar 2.

[0026] As a technical optimization of this utility model, the base 1 is pre-embedded in the civil engineering platform of the generator, and the generator is detachably connected to the upper end face of the base 1 by bolts.

[0027] In this embodiment, the base 1 is pre-embedded and directly connected to the generator, realizing the integrated integration of the maintenance and relocation device and the generator foundation, ensuring ultimate stability and structural strength during operation.

[0028] As a technical optimization of this utility model, a rubber pad is provided on the upper surface of the tray 3.

[0029] In this embodiment, the rubber pad increases the coefficient of friction and provides cushioning, effectively preventing the generator from sliding on the pallet 3 or being scratched, ensuring the safety of the relocation process and the integrity of the equipment.

[0030] As a technical optimization of this utility model, a controller is provided on the outer wall of the base 1, and the servo motor 8 and the hydraulic cylinder 12 are both electrically connected to the controller.

[0031] In this embodiment, the controller centrally controls the servo motor 8 and the hydraulic cylinder 12, thereby achieving automated, synchronized, and precise control of the device's lifting and shifting operations, which greatly improves the ease of operation and safety.

[0032] The working principle and usage process of this utility model are as follows: When moving the generator, first remove the bolts connecting the generator to the base 1, then start the hydraulic cylinder 12. The hydraulic cylinder 12 drives the lower sliding plate 10 to move to the left, and then drives the pallet 3 to move upward through the scissor-type telescopic frame 11, thereby driving the generator to move upward and lifting the generator. Then start the servo motor 8, which drives one of the rotating shafts 5 to rotate, and then drives the chain 7 to rotate through the sprocket 6. The chain 7 further drives the railcar 2 to move, thus moving the generator to a position that is easy to maintain. After maintenance is completed, reverse the operation, send the generator back to its original position through the drive mechanism, and drive the pallet 3 to descend through the hydraulic cylinder 12 to place the generator back on the base 1. Finally, tighten the bolts between the generator and the base 1. This utility model realizes the automation, precision and safety of generator relocation by using the drive mechanism and the lifting mechanism, which greatly improves maintenance efficiency and reduces operational risks.

[0033] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A generator maintenance and relocation device, comprising a base (1), characterized in that: The inner wall of the base (1) is provided with a railcar (2) via a drive mechanism. The upper side of the railcar (2) is provided with a support plate (3) via a lifting mechanism. The lifting mechanism includes four sliding rods (9) fixedly connected to the upper end face of the railcar (2) and the lower end face of the support plate (3) via ear plates. The outer walls of two sliding rods (9) at the same height are slidably connected with sliding plates (10). The two sliding plates (10) and the outer walls of the railcar (2) and the support plate (3) are movably connected by two symmetrically distributed scissor-type telescopic frames (11) via hinges. The upper end face of the railcar (2) is equipped with a hydraulic cylinder (12). The output end of the hydraulic cylinder (12) is fixedly connected to the lower sliding plate (10).

2. The generator maintenance and relocation device according to claim 1, characterized in that: The drive mechanism includes two rotating shafts (5) rotatably connected to the inner wall of the base (1). The outer walls of the two rotating shafts (5) are fixedly connected to sprockets (6). The outer walls of the two sprockets (6) are meshed with chains (7). The track car (2) is fixedly connected to the chain (7). The outer wall of the base (1) is equipped with a servo motor (8) whose output end is fixedly connected to one of the rotating shafts (5).

3. The generator maintenance and relocation device according to claim 1, characterized in that: The inner wall of the base (1) has two slide rails (4) arranged along its length, and the rollers of the track car (2) are slidably connected to the slide rails (4).

4. The generator maintenance and relocation device according to claim 1, characterized in that: The base (1) is embedded in the civil engineering platform of the generator, and the generator is detachably connected to the upper end face of the base (1) by bolts.

5. The generator maintenance and relocation device according to claim 1, characterized in that: A rubber pad is provided on the upper surface of the tray (3).

6. The generator maintenance and relocation device according to claim 2, characterized in that: The outer wall of the base (1) is equipped with a controller, and the servo motor (8) and the hydraulic cylinder (12) are both electrically connected to the controller.

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