A lifting and moving device for transformers

Abstract

This utility model relates to the field of hoisting and transportation, and discloses a hoisting and moving device for transformers, including a cantilever beam. A moving adjustment mechanism is provided on the upper surface of the cantilever beam. The moving adjustment mechanism includes a support arm, side plates, a lead screw, a servo motor, a movable slider, and a connecting slide rail. The number of side plates is set to two. In this utility model, through the moving adjustment mechanism, during the daily use and maintenance of the cantilever beam in conjunction with a cantilever hoisting machine, the lead screw is driven to rotate by the servo motor. After the lead screw rotates, the movable slider connected to the outer thread of the lead screw moves in the front-back direction of the cantilever beam. During the movement of the movable slider, the crack detection mechanism connected to it moves accordingly to perform comprehensive and detailed crack detection on the cantilever beam. In this way, the area to be detected can be quickly located, and continuous movement is possible, thereby greatly improving the efficiency of crack detection on the cantilever beam.

Description

Technical Field

[0001] This utility model relates to the field of hoisting and transportation, and in particular to a hoisting and moving device for transformers. Background Technology

[0002] Transformers, as important equipment in power systems, are widely used in power transmission and distribution. Due to their typically large size, heavy weight, and complex structure, the hoisting and relocation of transformers has always been a critical aspect of power engineering construction, and also a highly technical and safety-risk task.

[0003] According to Chinese Patent Publication No. CN119191111A, a pole-mounted transformer transportation and hoisting device is disclosed, belonging to the field of transformer installation. It includes a mobile vehicle, a scissor lift platform, and a handling mechanism. The mobile vehicle includes a frame; a carrying platform is provided at the upper end of the scissor lift, and a gantry guide rail is provided on the upper part of the carrying platform; the handling mechanism includes a gantry, a gantry slider is provided at the bottom of the gantry, a fork carriage is provided on one side of the gantry, and at least one set of fork arms is provided on one side of the fork carriage; a hoisting cylinder is installed on the gantry, and a sprocket is rotatably connected to the top of the piston rod of the hoisting cylinder. A chain is installed on the sprocket, one end of which is connected to the hoisting cylinder seat, and the other end is connected to the fork carriage. This invention utilizes a mobile vehicle for transformer transportation, equipped with a scissor lift platform and handling mechanism. During transformer hoisting, it avoids tilting and oblique lifting, ensuring stability and safety, and reducing the workload of workers. However, this device has shortcomings. Some transformers are quite heavy, and during long-term hoisting and transportation, the repeated load may cause fatigue damage to the cantilever beams, leading to cracks. If cracks in the cantilever beams are not detected and addressed in time, they may cause structural fracture during hoisting, resulting in serious safety accidents. Furthermore, since cantilever beams are typically long, manual inspection is time-consuming and prone to overlooking critical areas, reducing inspection efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lifting and moving device for transformers. It solves the problem that during long-term use of cantilever beams in conjunction with cantilever cranes, repeated loads can cause fatigue damage and cracks. If cracks in the cantilever beam are not detected and addressed in time, they may lead to structural fracture during lifting, resulting in serious safety accidents. Since cantilever beams are usually long, manual inspection takes a long time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a transformer hoisting and moving device, comprising a cantilever beam, wherein a moving adjustment mechanism is provided on the upper surface of the cantilever beam, the moving adjustment mechanism comprising a support arm, a side plate, a lead screw, a servo motor, a movable slider, and a connecting slide rail, wherein two side plates are provided, and multiple support arms are fixedly connected to the left and right sides of the lower surfaces of the two side plates, the lower ends of the multiple support arms are fixedly connected to the upper surface of the cantilever beam, and fixed plates are fixedly connected to the front and rear ends of the outer sides of the side plates, a lead screw is rotatably connected between the front and rear fixed plates, a movable slider is threadedly connected to the outer side of the lead screw, the inner side of the movable slider is slidably connected to the outer side of the connecting slide rail, the inner side of the connecting slide rail is fixedly connected to the outer side of the side plate, and a crack detection mechanism is provided on the outer side of the movable slider;

[0006] The crack detection mechanism includes an L-shaped support arm, a detection plate, and an ultrasonic detector. The L-shaped support arm is fixedly connected to the outside of the movable slider. The end of the L-shaped support arm away from the movable slider is located on the outside of the cantilever beam. The end of the L-shaped support arm close to the cantilever beam is fixedly connected to the detection plate. An ultrasonic detector is located in the middle of the detection plate.

[0007] Preferably, a servo motor is provided on the outer side of the fixed plate, and the output end of the servo motor is connected by a lead screw drive.

[0008] Preferably, a reinforcing inclined beam is fixedly connected to the front side of the upper surface of the cantilever beam, and the end of the reinforcing inclined beam away from the cantilever beam is fixedly connected to the outside of the column, and the column is fixedly connected to the rear end of the cantilever beam.

[0009] Preferably, a threaded mounting cylinder is provided on the lower rear side of the column, and the threaded mounting cylinder is rotatably connected to the column.

[0010] Preferably, a sliding plate is slidably connected to the lower surface of the cantilever beam, and an electrically driven pulley is provided on the inner side of the sliding plate.

[0011] Preferably, a lifting device is provided below the sliding plate, and the lifting device is connected to the transformer body via a rope.

[0012] Preferably, an audible and visual alarm is provided on the front side of the column, and the audible and visual alarm is electrically connected to an ultrasonic detector.

[0013] Preferably, a transfer frame is fixedly connected to the lower end of the cantilever beam.

[0014] Beneficial effects

[0015] This utility model provides a lifting and moving device for transformers. Compared with the prior art, it has the following advantages:

[0016] 1. In this utility model, through the set movable adjustment mechanism, during the daily use and maintenance of the cantilever beam and the cantilever hoist, the lead screw is driven to rotate by the servo motor. After the lead screw rotates, the movable slider connected to the outer thread of the lead screw moves in the front and back direction of the cantilever beam. During the movement of the movable slider, the crack detection mechanism connected to it moves accordingly, so as to perform a comprehensive and detailed crack detection on the cantilever beam. In this way, the area to be detected can be quickly located and can be moved continuously, thereby greatly improving the crack detection efficiency of the cantilever beam.

[0017] 2. In this utility model, through the crack detection mechanism, as the crack detection mechanism moves with the movable slider, the detection plate located outside the movable slider and connected by the L-shaped support arm moves outside the cantilever beam. At this time, the ultrasonic detector inside the detection plate detects the cracks in the cantilever beam. If cracks occur in the cantilever beam during long-term use with the cantilever crane, the crack situation can be detected in time in this way. After the cracks in the cantilever beam are detected, an audible and visual alarm is issued to remind nearby personnel that there are cracks in the cantilever beam, so as to avoid potential safety accidents. Attached Figure Description

[0018] Figure 1 This is a front three-dimensional structural diagram of a transformer hoisting and moving device proposed in this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the upper rear part of a transformer hoisting and moving device proposed in this utility model;

[0020] Figure 3 This is a structural schematic diagram of the upper part of a transformer hoisting and moving device proposed in this utility model, viewed from an oblique upper angle.

[0021] Figure 4 This utility model proposes a lifting and moving device for transformers. Figure 3 A magnified view of A in the middle.

[0022] Legend:

[0023] 1. Cantilever beam; 2. Audible and visual alarm; 3. Moving and adjusting mechanism; 301. Support arm; 302. Side plate; 303. Fixed plate; 304. Lead screw; 305. Servo motor; 306. Movable slider; 307. Connecting slide rail; 4. Column; 5. Threaded mounting cylinder; 6. Reinforcing inclined beam; 7. Sliding plate; 8. Electric drive pulley; 9. Crack detection mechanism; 901. L-shaped support arm; 902. Detection plate; 903. Ultrasonic detector; 10. Lifter; 11. Transfer frame; 12. Transformer body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides two technical solutions, specifically including the following embodiments:

[0026] Example 1:

[0027] A transformer hoisting and moving device includes a cantilever beam 1. A moving adjustment mechanism 3 is provided on the upper surface of the cantilever beam 1. The moving adjustment mechanism 3 includes support arms 301, side plates 302, lead screws 304, servo motors 305, movable sliders 306, and connecting slide rails 307. Two side plates 302 are provided. Multiple support arms 301 are fixedly connected to the left and right sides of the lower surface of each side plate 302. The lower ends of the multiple support arms 301 are fixedly connected to the upper surface of the cantilever beam 1. The outer surfaces of the side plates 302... Fixed plates 303 are fixedly connected to both the front and rear ends of the side plate. A lead screw 304 is rotatably connected between the two fixed plates 303. A movable slider 306 is threadedly connected to the outside of the lead screw 304. The inside of the movable slider 306 is slidably connected to the outside of the connecting slide rail 307. The inside of the connecting slide rail 307 is fixedly connected to the outside of the side plate 302. A crack detection mechanism 9 is provided on the outside of the movable slider 306. A servo motor 305 is provided on the outside of the fixed plate 303. The output end of the servo motor 305 is driven by the lead screw 304.

[0028] During operation, in the daily use and maintenance of the cantilever beam and the cantilever crane, the servo motor 305 drives the lead screw 304 to rotate. After the lead screw 304 rotates, the movable slider 306 connected to the outer thread of the lead screw 304 moves in the front and back direction of the cantilever beam 1. During the movement of the movable slider 306, the crack detection mechanism 9 connected to it moves accordingly to perform a comprehensive and detailed crack detection on the cantilever beam 1. In this way, the area to be detected can be quickly located and can be moved continuously, thereby greatly improving the crack detection efficiency of the cantilever beam 1.

[0029] Example 2:

[0030] Based on Embodiment 1, the crack detection mechanism 9 includes an L-shaped support arm 901, a detection plate 902, and an ultrasonic detector 903. The L-shaped support arm 901 is fixedly connected to the outside of the movable slider 306. The end of the L-shaped support arm 901 away from the movable slider 306 is located on the outside of the cantilever beam 1. The end of the L-shaped support arm 901 near the cantilever beam 1 is fixedly connected to the detection plate 902. The ultrasonic detector 903 is located in the middle of the detection plate 902. A reinforcing inclined beam 6 is fixedly connected to the front side of the upper surface of the cantilever beam 1. The end of the reinforcing inclined beam 6 away from the cantilever beam 1 is fixedly connected to the outside of the column 4. The column 4 is fixedly connected to the rear end of the cantilever beam 1. A threaded mounting cylinder 5 is located below the rear side of the column 4. The threaded mounting cylinder 5 is rotatably connected to the column 4. A sliding plate 7 is slidably connected to the lower surface of the cantilever beam 1. An electric drive is located inside the sliding plate 7. The pulley 8 is electrically driven and has an internal electric drive structure to rotate it, thereby adjusting the position of the sliding plate 7 and the hoist 10. This method is a mature sliding adjustment method in cantilever beams, so it is not described in detail. The hoist 10 is located below the sliding plate 7. The hoist 10 is connected to the transformer body 12 via ropes. The front of the column 4 is equipped with an audible and visual alarm 2, specifically model QT-100B-U, which is specially designed to work with the ultrasonic detector 903. It can receive the alarm signal from the detector and trigger the alarm. The audible and visual alarm 2 is electrically connected to the ultrasonic detector 903. The lower end of the cantilever beam 1 is fixedly connected to the transfer frame 11. The transfer frame 11 is equipped with an electric pulley, which can transfer the hoisting and moving device to the area where the transformer needs to be placed.

[0031] As the crack detection mechanism 9 moves with the movable slider 306, the detection plate 902, located outside the movable slider 306 and connected by the L-shaped support arm 901, moves outside the cantilever beam 1. At this time, the ultrasonic detector 903 inside the detection plate 902 detects the cracks in the cantilever beam 1. If the cantilever beam 1 develops cracks during long-term use with the cantilever crane, this method can detect the cracks in a timely manner. After detecting a crack in the cantilever beam 1, an audible and visual alarm is triggered to alert nearby personnel that the cantilever beam 1 is cracked, thus avoiding potential safety accidents.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lifting and moving device for a transformer, comprising a cantilever beam (1), characterized in that: The upper surface of the cantilever beam (1) is provided with a moving adjustment mechanism (3). The moving adjustment mechanism (3) includes a support arm (301), a side plate (302), a lead screw (304), a servo motor (305), a movable slider (306), and a connecting slide rail (307). The number of side plates (302) is set to two. Multiple support arms (301) are fixedly connected to the left and right sides of the lower surface of the two side plates (302). The lower ends of the multiple support arms (301) are fixedly connected to the cantilever beam (1). On the surface, the side plate (302) is fixedly connected to both the front and rear ends of the outer side plate (302), and a lead screw (304) is rotatably connected between the two fixed plates (303). A movable slider (306) is threadedly connected to the outside of the lead screw (304). The movable slider (306) is slidably connected to the outside of the connecting slide rail (307) on the inside. The connecting slide rail (307) is fixedly connected to the outside of the side plate (302) on the inside. A crack detection mechanism (9) is provided on the outside of the movable slider (306). The crack detection mechanism (9) includes an L-shaped support arm (901), a detection plate (902), and an ultrasonic detector (903). The L-shaped support arm (901) is fixedly connected to the outside of the movable slider (306). The end of the L-shaped support arm (901) away from the movable slider (306) is located on the outside of the cantilever beam (1). The end of the L-shaped support arm (901) close to the cantilever beam (1) is fixedly connected to the detection plate (902). The ultrasonic detector (903) is located in the middle of the detection plate (902).

2. The transformer hoisting and moving device according to claim 1, characterized in that: A servo motor (305) is provided on the outside of the fixed plate (303), and the output end of the servo motor (305) is connected to the lead screw (304) for transmission.

3. The lifting and moving device for a transformer according to claim 1, characterized in that: A reinforcing inclined beam (6) is fixedly connected to the front side of the upper surface of the cantilever beam (1). The end of the reinforcing inclined beam (6) away from the cantilever beam (1) is fixedly connected to the outside of the column (4). The column (4) is fixedly connected to the rear end of the cantilever beam (1).

4. The transformer hoisting and moving device according to claim 3, characterized in that: A threaded mounting cylinder (5) is provided on the lower rear side of the column (4), and the threaded mounting cylinder (5) is rotatably connected to the column (4).

5. A lifting and moving device for a transformer according to claim 1, characterized in that: The lower surface of the cantilever beam (1) is slidably connected to a sliding plate (7), and an electric drive pulley (8) is provided on the inner side of the sliding plate (7).

6. A lifting and moving device for a transformer according to claim 5, characterized in that: A lifting device (10) is provided below the sliding plate (7), and the lifting device (10) is connected to the transformer body (12) by a rope.

7. A lifting and moving device for a transformer according to claim 3, characterized in that: An audible and visual alarm (2) is installed on the front side of the column (4), and the audible and visual alarm (2) is electrically connected to the ultrasonic detector (903).

8. A lifting and moving device for a transformer according to claim 1, characterized in that: The lower end of the cantilever beam (1) is fixedly connected to a transfer frame (11).

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