Railway power transformer aging test platform

Abstract

The utility model relates to a kind of railway power transformer aging test platform. Including frame, bottom plate is installed in the bottom of frame, front portion is equipped with the front side plate with multiple heat dissipation ports, support crossbeam is equipped in the inside front portion of frame, installation beam is equipped in inside rear portion, multiple H type protection frame are installed on support crossbeam and heat dissipation fan is installed in the front portion of protection frame, product wiring assembly is installed in the inside of protection frame, multiple fixed wiring terminals are installed on installation beam, mobile wiring terminal is equipped with using shift component to move forward and backward in the front of each fixed wiring terminal, each product wiring assembly is connected with each mobile wiring terminal by wiring harness;Power distribution box is also installed in the side of frame, each fixed wiring terminal is connected with power distribution box electricity.

Description

Technical Field

[0001] This utility model belongs to the field of product testing technology, and in particular relates to an aging test platform for railway power transformers. Background Technology

[0002] A railway power transformer is a transformer product used in railway power systems to transform and supply power. For railway power systems, there are stringent requirements for the stability and reliability of transformer operation; the quality of the transformer's operating characteristics determines the stability and reliability of the railway power system itself. Before leaving the factory, batches of power transformers undergo random inspection and aging tests to determine whether the product quality meets the requirements.

[0003] Existing aging test platforms typically consist of a support frame and multiple sets of terminals mounted on the frame. During testing, multiple transformer products are loaded onto each set of terminals. This presents the following problem: the transformer generates a large amount of heat during testing, and the inability to dissipate heat effectively leads to a significant increase in temperature within the aging test area. Therefore, a novel aging test platform for railway power transformers needs to be developed to address these technical issues. Summary of the Invention

[0004] The purpose of this invention is to provide an aging test platform for railway power transformers, which has good heat dissipation capabilities and avoids a significant increase in temperature in the aging test area during the aging test process.

[0005] The technical solution adopted by this utility model is as follows: an aging test platform for railway power transformers, including a frame, a base plate installed at the bottom of the frame, a front side plate with multiple heat dissipation vents installed at the front, a supporting crossbeam at the front of the frame, and an installation beam at the rear of the frame. Multiple H-shaped protective frames are installed on the supporting crossbeams, and a cooling fan is installed at the front of the protective frames. Product wiring assemblies for simultaneously loading multiple power transformers are installed inside the protective frames. Multiple fixed terminals are installed on the installation beams. A movable terminal that moves back and forth using a shifting component is provided in front of each fixed terminal. The movable terminal is plugged into or disconnected from the fixed terminal. Each product wiring assembly is connected to each movable terminal through a wire harness. A distribution box is also installed on the side of the frame, and each fixed terminal is electrically connected to the distribution box.

[0006] Preferably, the product wiring assembly includes a long strip-shaped support base that is fixedly connected to the support beam in the middle. Multiple sets of plug-in terminals are arranged on the support base along the length direction, and each power transformer is plugged into and connected to a set of plug-in terminals.

[0007] Preferably, the displacement assembly includes a base installed between the mounting beam and the rear edge of the frame, a cylinder mounted on the base, a movable seat mounted at the front end of the piston rod of the cylinder, and a movable terminal block mounted and fixed on the movable seat.

[0008] Preferably, a wiring board is installed on the mounting beam, and a main terminal block is installed at the end of the wiring board near the distribution box and connected to the distribution box; each fixed terminal block is connected to the main terminal block through a lead wire, and each set of lead wires extends along the wiring board and is fixedly connected to the wiring board using wire clips.

[0009] Preferably, it also includes a cover plate that can be closed on top of the frame, the front of which is hinged to the front side plate by multiple hinges.

[0010] The advantages and positive effects of this utility model are: This invention provides an aging test platform for railway power transformers. Compared with existing aging test platforms, this platform features a frame with supporting beams installed inside. Multiple H-shaped protective frames and product wiring assemblies are mounted on these beams, allowing multiple power transformers to be simultaneously mounted on their respective wiring assemblies. Therefore, this aging test platform can perform aging tests on multiple products concurrently. By installing cooling fans at the front of the H-shaped protective frames and providing heat dissipation vents on the front side panels, during the aging test, the cooling fans create an airflow from rear to front within the frame, which is then exhausted through the vents. This continuously transfers the heat generated during the aging test to the outside of the testing area, effectively preventing a significant temperature increase and ensuring the safety of the aging test.

[0011] By placing the product wiring assembly inside the H-shaped protective frame, a certain degree of lateral protection can be provided for the product wiring assembly and the loaded power transformer, preventing contact between power transformers at adjacent workstations during loading and unloading. In this transformer aging test platform, the product wiring assembly connects to the movable terminal block, and the fixed terminal block connects to the distribution box. The movable and fixed terminal blocks are connected and disconnected using a shifting component, which reduces the operational burden on aging test personnel. Attached Figure Description

[0012] Figure 1 This is a top view of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the main body of this utility model; Figure 3 yes Figure 1 A three-dimensional structural diagram of the central support beam, protective frame, and product wiring components; Figure 4 yes Figure 1 A top view of the fixed terminal, the movable terminal, and their shifting components.

[0013] In the picture: 1. Protective frame; 2. Support beam; 3. Frame; 4. Base plate; 5. Front side plate; 6. Cooling fan; 7. Support base; 8. Hinge; 9. Cylinder; 10. Moving terminal block; 11. Fixed terminal block; 12. Plug-in terminal block; 13. Base; 14. Moving base; 15. Wiring board; 16. Mounting beam; 17. Power transformer; 18. Main terminal block; 19. Distribution box; 20. Wiring harness; 21. Heat dissipation vent. Detailed Implementation

[0014] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0015] Please see Figure 1 and Figure 2 The railway power transformer aging test platform of this utility model includes a frame 3, a base plate 4 installed at the bottom of the frame 3, and a front side plate 5 with multiple heat dissipation vents 21 installed at the front. As shown in the figure, the frame 3 is a flat cuboid shape and is constructed of metal profiles. The four edges of the base plate 4 are fixedly connected to the bottom of the frame 3 with bolts, and the edges of the front side plate 5 are fixedly connected to the front of the frame 3 with bolts.

[0016] In this embodiment, a cover plate (not shown in the figure) that can be closed on the top of the frame 3 is also included. The front part of the cover plate is hinged to the front side plate 5 by multiple hinges 8. Before the aging test, the cover plate is lifted up to expose the interior of the frame 3. The power transformer 17 to be tested is loaded and then the cover plate is closed, the top of the frame 3 is closed, and then the power is connected for the aging test.

[0017] This aging test platform can be placed on a stable tabletop. Alternatively, four legs can be installed at the four corners of the bottom of frame 3 to stably support it on the ground.

[0018] A supporting crossbeam 2 is located at the front of the interior of frame 3, and an installation beam 16 is located at the rear of the interior. (See also...) Figure 2 and Figure 3 As can be seen, the two ends of the supporting beam 2 are provided with connecting plates. These two connecting plates are fixedly connected to the left and right sides of the frame 3 by bolts. The mounting beam 16 is made of the same metal profile as the frame 3. The left and right ends of the mounting beam 16 are fixedly connected to the left and right sides of the frame 3, respectively.

[0019] Multiple H-shaped protective frames 1 are installed on the supporting beam 2, and a cooling fan 6 is installed at the front of the protective frame 1. Inside the protective frame 1, a product wiring assembly for simultaneously loading multiple power transformers 17 is installed. As shown in the figure, the horizontal plate in the middle of the protective frame 1 is fixedly connected to the supporting beam 2 with bolts. The product wiring assembly is long and narrow and is installed in the middle of the protective frame 1. The protective frame 1 has side baffles that bend upwards on both sides. The product wiring assembly is located between these two side baffles, thus providing a certain degree of lateral protection for the product wiring assembly. During the operation of loading or unloading power transformers 17 onto or from the product wiring assembly, the product wiring assembly and its power transformers 17 are protected by the protective frame 1, preventing accidental contact with products at the next workstation during operation at the current workstation, which could lead to problems such as falling off or shifting.

[0020] In this embodiment, the product wiring assembly includes a long strip-shaped support base 7 that is fixedly connected to the support beam 2 in the middle. Multiple sets of plug terminals 12 are arranged on the support base 7 along the length direction. Each power transformer 17 is plugged into a set of plug terminals 12. During aging test, the power transformer 17 to be tested is loaded onto a set of plug terminals 12, and the wiring position on the power transformer 17 is plugged into the exposed end of the plug terminal 12.

[0021] Multiple fixed terminals 11 are installed on the mounting beam 16. A movable terminal 10, which moves back and forth using a shifting assembly, is located in front of each fixed terminal 11. When the movable terminal 10 moves forward, it disconnects from the fixed terminal 11; when it moves backward, it connects to the fixed terminal 11. Each product wiring assembly is connected to each movable terminal 10 via a wiring harness 20. Each wiring harness 20 includes multiple sets of cables, and each set of cables connects to one set of plug-in terminals 12 at its respective workstation. When the movable terminal 10 is plugged into the corresponding fixed terminal 11, the wiring between each set of plug-in terminals 12 and the fixed terminal 11 is completed.

[0022] In this embodiment, the displacement assembly includes a base 13 installed between the mounting beam 16 and the rear side frame of the frame 3, a cylinder 9 installed on the base 13, a movable seat 14 installed at the front end of the piston rod of the cylinder 9, and a movable terminal block 10 installed and fixed on the movable seat 14.

[0023] When the piston rod of cylinder 9 extends forward, the movable seat 14 and its movable terminal 10 move forward, disconnecting the movable terminal 10 from the fixed terminal 11. Conversely, when the piston rod of cylinder 9 retracts backward, the movable seat 14 and its movable terminal 10 move backward, connecting the movable terminal 10 to the fixed terminal 11. The shifting assembly uses a pneumatically operated cylinder 9 to connect and disconnect the terminals, which reduces the workload of aging test personnel.

[0024] A distribution box 19 is also installed on the side of the frame 3, and each fixed terminal block 11 is electrically connected to the distribution box 9. As mentioned above, when the movable terminal block 10 is combined with the fixed terminal block 11, each set of plug terminals 12 of each product wiring assembly is connected to the fixed terminal block 11, and the fixed terminal block 11 is electrically connected to the distribution box 9. Therefore, at this time, each set of plug terminals 12 of each product wiring assembly is electrically connected to the distribution box 19, and each installed power transformer 17 is energized.

[0025] In this embodiment, a wiring board 15 is installed on the mounting beam 16. A main terminal block 18 is installed at the end of the wiring board 15 near the distribution box 19 and is connected to the distribution box 19. The distribution box 19 is connected to the mains power via a power cord. Each fixed terminal block 11 is connected to the main terminal block 18 via a connecting wire. Each set of connecting wires extends along the wiring board 15 and is fixedly connected to the wiring board 15 using wire clips. The function of the distribution box 19 is to transform the mains power to provide multiple power supplies for aging tests. As shown in the figure, four sets of product wiring components, movable terminal blocks 10, fixed terminal blocks 11, and shifting components are arranged side by side. Therefore, the distribution box steps down the mains power supply to provide four power supplies.

[0026] Specifically, the power supply line leading from the distribution box 19 is equipped with a distribution terminal at its end. The distribution terminal is plugged into the main terminal 18, thus energizing each fixed terminal 11 connected to the main terminal 18, and consequently each set of plug-in terminals 12. The wiring board 15 serves to support and fix the main terminal 18 and to secure the wiring of each set of leads. By using wire clips to fix the leads to the wiring board 15, the neatness of the wiring can be improved.

[0027] How to use: Initially, the main terminal block 18 is not connected to the power distribution terminal of the distribution box 19, and each set of movable terminal blocks 10 and its fixed terminal blocks 11 are not connected. This can improve the safety of subsequent operations. Lift the cover upwards and install the multiple power transformers 17 one by one on each set of plug-in terminals 12 of each product wiring assembly. After the product loading is completed, plug the main terminal block 18 into the power distribution terminal of the distribution box 19 to achieve power connection, and then close the cover.

[0028] Start each cooling fan 6; then control each cylinder 9 to actuate, the piston rod of each cylinder 9 retracts, and each set of movable terminal blocks 10 and its fixed terminal blocks 11 are plugged in and connected, thus energizing each set of plug-in terminals 12 of each product wiring assembly, and energizing each power transformer 17. After the aging test continues for the specified time, control each cylinder 9 to actuate, the piston rod of each cylinder 9 extends, and each set of movable terminal blocks 10 and its fixed terminal blocks 11 disconnects, thus de-energizing each set of plug-in terminals 12 of each product wiring assembly. Then control each cooling fan 6 to stop operating, then open the cover and unload each power transformer 17, disconnect the main terminal block 18 from the power distribution terminal of the distribution box 19, and prepare for the next aging test operation. The unloaded power transformer 17 undergoes subsequent quality inspection to determine the aging test results and evaluate product quality.

Claims

1. An aging test platform for railway power transformers, characterized in that: The system includes a frame (3), a base plate (4) installed at the bottom of the frame (3), a front side plate (5) with multiple heat dissipation vents (21) installed at the front, a supporting crossbeam (2) at the front of the frame (3), and a mounting beam (16) at the rear of the frame (3). Multiple H-shaped protective frames (1) are installed on the supporting crossbeam (2), and a cooling fan (6) is installed at the front of the protective frame (1). A product wiring assembly for simultaneously loading multiple power transformers (17) is installed inside the protective frame (1). Multiple fixed terminals (11) are installed on the mounting beam (16). A movable terminal (10) is provided in front of each fixed terminal (11) and can be moved back and forth using a shifting component. The movable terminal (10) is connected to or disconnected from the fixed terminal (11). Each product wiring component is connected to each movable terminal (10) through a wire harness (20). A distribution box (19) is also installed on the side of the frame (3). Each fixed terminal (11) is connected to the distribution box (19).

2. The railway power transformer aging test platform as described in claim 1, characterized in that: The product wiring assembly includes a long strip support base (7) that is fixedly connected to the support beam (2) in the middle. Multiple sets of plug terminals (12) are provided on the support base (7) along the length direction. Each power transformer (17) is plugged into a set of plug terminals (12).

3. The railway power transformer aging test platform as described in claim 2, characterized in that: The displacement assembly includes a base (13) installed between the mounting beam (16) and the rear frame of the frame (3), a cylinder (9) is mounted on the base (13), a movable seat (14) is mounted at the front end of the piston rod of the cylinder (9), and a movable terminal block (10) is mounted and fixed on the movable seat (14).

4. The railway power transformer aging test platform as described in claim 3, characterized in that: A wiring board (15) is installed on the mounting beam (16). A main terminal block (18) is installed at the end of the wiring board (15) near the distribution box (19) and the main terminal block (18) is connected to the distribution box (19). Each fixed terminal block (11) is connected to the main terminal block (18) through a lead wire. Each set of lead wires extends along the wiring board (15) and is fixedly connected to the wiring board (15) with a wire clip.

5. The railway power transformer aging test platform as described in claim 4, characterized in that: It also includes a cover plate that can be closed on top of the frame (3), the front of which is hinged to the front side plate (5) by multiple hinges (8).

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