An oil-immersed transformer protective shell

Abstract

The utility model relates to power equipment protection technical field, specifically is a kind of oil-immersed transformer protective shell, including shell, the bottom end of shell is rotatably connected with four moving wheels, the bottom end of shell is installed with the abutment plate by driving structure, the screw rod is rotatably connected on shell, the thread of screw rod both ends is opposite, two sliding blocks are threadedly connected on screw rod, sliding block is rotatably connected with connecting rod, the bottom end of connecting rod is rotatably connected with abutment plate, two lugs are fixedly connected on abutment plate, lug is rotatably connected with gyro wheel, two sliding slots are set up on shell, gyro wheel is rotatably connected with sliding slot, shell is installed between two mounting rods. By installing moving wheel in transformer protective shell bottom end, make transformer when loading car adjustment position, it is convenient to move, loading car efficiency is high, reduce the damage of secondary movement to shell simultaneously, further drive abutment plate and ground abutment by driving structure, to ensure that transformer is stably fixed after loading car is completed.

Description

Technical Field

[0001] This utility model relates to a transformer protective enclosure, specifically an oil-immersed transformer protective enclosure, and belongs to the field of power equipment protection technology. Background Technology

[0002] The protective enclosure of an oil-immersed transformer is a sealed box made of metal plates or composite materials. It is a key component to ensure the safe and stable operation of the transformer. It not only provides physical protection for the internal iron core, windings and insulating oil, isolating them from external moisture, dust, mechanical impact and corrosive media, but also assists the insulating oil in circulating heat dissipation through reasonable structural design (such as heat sinks and corrugated oil tanks), improving the equipment cooling efficiency. At the same time, the protective enclosure has high strength and sealing performance, and can withstand the pressure surge during internal faults. With the help of pressure relief valves, gas relays and other devices, it effectively prevents safety accidents such as explosions and fires, ensuring the long-term reliable operation of the transformer under complex working conditions.

[0003] However, when transporting and loading traditional transformers and their protective casings, forklifts and cranes are often used to complete the operation. However, due to the limited operating space of the handling equipment, it is difficult to accurately place the transformers in the truck bed. As a result, the transformers are arranged in a messy manner and are mostly concentrated on the outside of the truck bed. When the position needs to be adjusted, it is difficult to push the heavy transformers by manpower. It requires multiple steps such as lifting equipment, installing pushing components, and making multiple fine adjustments. Moreover, the displacement is limited at one time, and repeated adjustments are time-consuming. This results in low efficiency and poor convenience. Furthermore, applying force at a single point can easily cause local deformation of the transformer's protective casing or cracking of the welds. Utility Model Content

[0004] The purpose of this utility model is to provide an oil-immersed transformer protective shell to solve the above problems. By installing movable wheels at the bottom of the transformer protective shell, the placement position of the transformer can be adjusted directly by rolling the movable wheels during transportation and loading, making the transformer movement more convenient and the loading efficiency higher. At the same time, it reduces the damage to the transformer shell caused by secondary movement. Furthermore, the drive structure drives the abutment plate to contact the ground, thereby ensuring that the transformer is stably fixed after loading and avoiding the transformer shaking due to the rolling of the movable wheels during transportation.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an oil-immersed transformer protective shell, comprising a shell, four movable wheels rotatably connected to the bottom end of the shell, a stop plate mounted on the bottom end of the shell via a drive structure, the drive structure including a lead screw, the lead screw rotatably connected to the shell, the threads at both ends of the lead screw being opposite, two sliders threadedly connected to the lead screw, a connecting rod rotatably connected to the sliders, the bottom end of the connecting rod rotatably connected to the stop plate, two protrusions fixedly connected to the stop plate, rollers rotatably connected to the protrusions, two sliding grooves formed on the shell, the rollers rollingly connected to the sliding grooves, and the shell mounted between two mounting rods.

[0006] Preferably, the two sliders are symmetrically distributed about the middle of the lead screw, and the two rollers are symmetrically distributed about the middle of the abutment.

[0007] Preferably, a handwheel is installed at the end of the lead screw, a plug rod is fixedly connected to the handwheel, and a plug hole is opened on the lead screw, and the plug rod is inserted into the plug hole.

[0008] Preferably, the cross-section of the insertion rod is hexagonal, and the cross-section of the insertion hole is hexagonal.

[0009] Preferably, a rubber pad is fixedly connected to the bottom end of the abutment, and the bottom end of the rubber pad is provided with a plurality of grooves at equal intervals.

[0010] Preferably, two fixing blocks are fixedly connected to both sides of the housing, a positioning post is fixedly connected to the bottom end of the fixing block, and two connecting blocks are fixedly connected to the mounting rod, with the positioning post and the connecting block being inserted into each other.

[0011] Preferably, the bottom end of the positioning post has a frustum-shaped structure, and heat dissipation fins are installed on the outer wall of the housing.

[0012] Preferably, a first crossbar is welded to the bottom end of the housing, the first crossbar abuts against the mounting rod, and a second crossbar is installed at the bottom end of the mounting rod, the second crossbar being located directly below the first crossbar.

[0013] The beneficial effects of this utility model are as follows: Four movable wheels are rotatably connected to the bottom of the housing; a stop plate is mounted on the bottom of the housing via a drive structure; a lead screw is rotatably connected to the housing, with opposite threads at both ends; two sliders are threaded onto the lead screw; a connecting rod is rotatably connected to the sliders; the bottom end of the connecting rod is rotatably connected to the stop plate; two protrusions are fixedly connected to the stop plate; rollers are rotatably connected to the protrusions; and two sliding grooves are formed on the housing, with the rollers rolling in connection with the sliding grooves. By installing movable wheels at the bottom of the transformer protective housing, the transformer's placement position can be adjusted secondaryly during transport and loading, making transformer movement more convenient and loading efficiency higher. This also reduces damage to the transformer housing from secondary movement. Furthermore, the drive structure drives the stop plate to contact the ground, ensuring the transformer is stably fixed after loading and preventing transformer shaking during transport due to the rolling of the movable wheels. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the shell and the heat dissipation fins of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the housing and the lead screw of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection structure between the lead screw and the slider of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the lead screw and the insertion rod of this utility model;

[0019] Figure 6 This is a schematic diagram of the connection structure between the roller and the protrusion of this utility model.

[0020] In the diagram: 1. Housing; 2. Moving wheel; 3. Drive structure; 301. Lead screw; 302. Slider; 303. Connecting rod; 304. Protrusion; 305. Roller; 306. Slide groove; 307. Handwheel; 308. Insert rod; 309. Insertion hole; 4. Support plate; 5. Rubber pad; 6. Fixing block; 7. Positioning post; 8. Connecting block; 9. First crossbar; 10. Mounting rod; 11. Second crossbar; 12. Heat dissipation fins. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6 As shown, an oil-immersed transformer protective housing includes a housing 1. Four movable wheels 2 are rotatably connected to the bottom end of the housing 1. A stop plate 4 is mounted on the bottom end of the housing 1 via a drive structure 3. The drive structure 3 includes a lead screw 301, which is rotatably connected to the housing 1. The threads at both ends of the lead screw 301 are opposite. Two sliders 302 are threadedly connected to the lead screw 301. A connecting rod 303 is rotatably connected to the sliders 302. The bottom end of the connecting rod 303 is rotatably connected to the stop plate 4. Two protrusions 304 are fixedly connected to the stop plate 4. Rollers 305 are rotatably connected to the protrusions 304. Two sliding grooves 306 are formed on the housing 1. The rollers 305 are in rolling connection with the sliding grooves 306. The two sliders 302 are symmetrically distributed about the middle of the lead screw 301, and the two rollers 305 are symmetrically distributed about the middle of the stop plate 4. The housing 1 is mounted between two mounting rods 10.

[0023] As a technical optimization of this utility model, a handwheel 307 is installed at the end of the lead screw 301. Rotating the lead screw 301 by the handwheel 307 makes operation more convenient. A plug rod 308 is fixedly connected to the handwheel 307. The lead screw 301 has a plug hole 309. The plug rod 308 is plugged into the plug hole 309. The cross-section of the plug rod 308 is hexagonal, and the cross-section of the plug hole 309 is hexagonal. By plugging the hexagonal plug rod 308 and the hexagonal plug hole 309, the connection between the handwheel 307 and the lead screw 301 is quickly realized, while preventing the plug rod 308 from rotating when the handwheel 307 is rotated.

[0024] As a technical optimization of this utility model, a rubber pad 5 is fixedly connected to the bottom end of the abutment plate 4. The bottom end of the rubber pad 5 is provided with multiple grooves at equal intervals, which can increase the friction between the abutment plate 4 and the carriage floor or ground, so that the transformer is parked stably and prevents the transformer from moving and colliding with other objects, causing damage to the shell 1 and heat dissipation fins 12.

[0025] As a technical optimization of this utility model, two fixing blocks 6 are fixedly connected to both sides of the housing 1. A positioning post 7 is fixedly connected to the bottom end of the fixing block 6. Two connecting blocks 8 are fixedly connected to the mounting rod 10. The positioning post 7 is inserted into the connecting block 8. The initial positioning of the transformer during installation is quickly achieved by inserting the positioning post 7 into the positioning hole on the connecting block 8, making the installation more convenient and flexible. The bottom end of the positioning post 7 has a frustum-shaped structure, which guides the positioning post 7 and facilitates the quick insertion of the positioning post 7 into the positioning hole on the connecting block 8. A first crossbar 9 is welded to the bottom end of the housing 1. The first crossbar 9 abuts against the mounting rod 10. A second crossbar 11 is installed at the bottom end of the mounting rod 10. The second crossbar 11 is located directly below the first crossbar 9. The stable installation of the transformer is completed by the cooperation of the first crossbar 9, the mounting rod 10 and the second crossbar 11.

[0026] As a technical optimization of this utility model, heat dissipation fins 12 are installed on the outer wall of the housing 1. The arrangement of heat dissipation fins 12 can assist the insulating oil inside the housing 1 to circulate and dissipate heat, thereby improving the cooling efficiency of the equipment.

[0027] In use, this invention first moves the transformer onto the truck bed during transport and loading using forklifts or other handling equipment. Due to limited operating space, it is difficult for the handling equipment to accurately place the transformer in the designated position. Therefore, a secondary movement of the transformer is required to adjust its position. During operation, the housing 1 is pushed, causing the four wheels 2 at its bottom to roll within the truck bed, thereby achieving fine-tuning of the transformer's position (such as moving it laterally to the inside of the truck bed or aligning it with fixed anchor points). This solves the problem of difficulty in manually moving the transformer in traditional handling, making the operation simple, time-saving, and labor-saving. Furthermore, moving the transformer via the wheels 2 eliminates the need for auxiliary equipment such as hydraulic pushers, reducing damage to the housing 1 during operation. After the transformer is adjusted to the appropriate position, the hexagonal insert 308 on the handwheel 307 is inserted into the hexagonal insert 309 at the end of the lead screw 301, thus installing the handwheel 307 onto the end of the lead screw 301. Then, the handwheel 307 is rotated, causing the lead screw 301 to rotate. Simultaneously, the lead screw 301 rotates. The screw 301 is driven by two sliders 302. Since the threads at both ends of the screw 301 are opposite, the two sliders 302 move towards each other along the screw 301. Simultaneously, the sliders 302 move, driving the abutment 4 downwards via the connecting rod 303. As the abutment 4 moves, the protrusions 304 on the abutment 4 drive the rollers 305 to roll within the grooves 306 of the housing 1, ensuring the abutment 4 falls vertically until the rubber pad 5 at the bottom of the abutment 4 is in close contact with the carriage floor. This increases the friction between the rubber pad 5 and the carriage floor through the rubber pad 5 and its grooves. To increase the stability of the device during transportation and prevent the device from shaking and colliding due to the movement of the moving wheels 2 during the transportation process, thereby avoiding damage to the housing 1 and the heat dissipation fins 12; when it is necessary to install the device on the mounting rod 10, the positioning post 7 installed on the housing 1 by the fixing block 6 is inserted into the connecting block 8 on the mounting rod 10, thereby quickly and accurately positioning the housing 1. Then, the first crossbar 9 and the second crossbar 11 are connected by bolts to further fix the housing 1, thereby making the device installation stable.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective enclosure for an oil-immersed transformer, comprising a housing (1), characterized in that: The bottom end of the housing (1) is rotatably connected to four moving wheels (2). The bottom end of the housing (1) is mounted with a stop plate (4) through a drive structure (3). The drive structure (3) includes a lead screw (301). The lead screw (301) is rotatably connected to the housing (1). The threads at both ends of the lead screw (301) are opposite. Two sliders (302) are threadedly connected to the lead screw (301). A connecting rod (303) is rotatably connected to the sliders (302). The bottom end of the connecting rod (303) is rotatably connected to the stop plate (4). Two protrusions (304) are fixedly connected to the stop plate (4). Rollers (305) are rotatably connected to the protrusions (304). Two sliding grooves (306) are opened on the housing (1). The rollers (305) are rolledly connected to the sliding grooves (306). The housing (1) is installed between two mounting rods (10). The bottom end of the abutment (4) is fixedly connected to a rubber pad (5), and the bottom end of the rubber pad (5) is provided with multiple grooves at equal intervals. Two fixing blocks (6) are fixedly connected to both sides of the housing (1). A positioning post (7) is fixedly connected to the bottom end of the fixing block (6). Two connecting blocks (8) are fixedly connected to the mounting rod (10). The positioning post (7) is inserted into the connecting block (8). The bottom end of the housing (1) is welded with a first crossbar (9), which abuts against the mounting rod (10). The bottom end of the mounting rod (10) is fitted with a second crossbar (11), which is located directly below the first crossbar (9).

2. The protective enclosure for an oil-immersed transformer according to claim 1, characterized in that: The two sliders (302) are symmetrically distributed about the middle of the lead screw (301), and the two rollers (305) are symmetrically distributed about the middle of the abutment (4).

3. The protective enclosure for an oil-immersed transformer according to claim 2, characterized in that: A handwheel (307) is installed at the end of the lead screw (301), and a plug rod (308) is fixedly connected to the handwheel (307). A plug hole (309) is opened on the lead screw (301), and the plug rod (308) is inserted into the plug hole (309).

4. The protective enclosure for an oil-immersed transformer according to claim 3, characterized in that: The cross-section of the insertion rod (308) is hexagonal, and the cross-section of the insertion hole (309) is hexagonal.

5. The protective enclosure for an oil-immersed transformer according to claim 1, characterized in that: The bottom end of the positioning post (7) is a frustum-shaped structure, and heat dissipation fins (12) are installed on the outer wall of the housing (1).

Images