A transfer device of a power scene voltage transformer

Abstract

This invention relates to the field of auxiliary tooling for high-voltage power distribution equipment, and discloses a transfer device for voltage transformers in power scenarios, comprising: a transfer vehicle body; front moving wheels and a rear moving assembly, respectively disposed on the front and rear sides of the transfer vehicle body; a cabinet docking mechanism, the cabinet docking mechanism including two handling docking rods, used to realize the disassembly, assembly, handling, docking, and positioning of the voltage transformer trolley; and a lifting and adjusting mechanism disposed on the transfer vehicle body, used to adjust the height of the cabinet docking mechanism. This invention, by setting up a transfer vehicle body, front moving wheels, rear moving assembly, cabinet docking mechanism, lifting and adjusting mechanism, front and rear leveling mechanism, and left and right leveling mechanism, utilizes the docking rods of the cabinet docking mechanism to achieve precise alignment between the transfer trolley and the high-voltage switchgear, completing the disassembly, assembly, handling, docking, and positioning of the voltage transformer. The front and rear leveling mechanism and the left and right leveling mechanism adaptively adjust the attitude of the transfer vehicle body to ensure that the vehicle body remains horizontally balanced throughout the transfer process.

Description

Technical Field

[0001] This invention relates to the field of auxiliary tooling for high-voltage power distribution equipment, specifically a transfer device for voltage transformers in power scenarios. Background Technology

[0002] The voltage transformer trolley inside the high-voltage switchgear is an important core component of the power distribution equipment in the power system. During equipment inspection, maintenance and replacement, special transfer tools are needed to complete the removal, transfer and reinstallation of the voltage transformer trolley. At present, the existing voltage transformer trolley transfer carts that are matched with the switchgear have relatively simple structure and function, and most of them only have basic load-bearing and handling functions, which have many practical defects.

[0003] Traditional transport trolleys are only suitable for use on flat indoor surfaces. When transporting goods in complex environments such as uneven surfaces in factory areas, they lack adaptive leveling and center of gravity adjustment mechanisms. When the ground is uneven or the load is uneven, the trolley is prone to tilting. It cannot adjust the counterweight independently to keep the trolley level, resulting in insufficient transport stability. Voltage transformers contain precision electrical components. Long-term transport in a non-horizontal state may generate cumulative stress, causing uneven force on internal components, misalignment, and shaking. Over time, this can easily lead to poor contact or even component damage. At the same time, the trolley has a high center of gravity, and even a small tilt can be amplified, leading to inaccurate docking, jamming, or even tipping over in severe cases, posing a safety hazard. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a transfer device for voltage transformers in power scenarios, solving the problem that traditional transfer trolleys are only suitable for indoor flat surfaces and lack adaptive leveling and center of gravity adjustment mechanisms when transferring transformers in complex scenarios such as uneven roads in factory areas.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a transfer device for voltage transformers in power scenarios, comprising: Transfer vehicle body; The front moving wheels and the rear moving components are respectively located on the front and rear sides of the transfer vehicle body; The cabinet docking mechanism includes two transport docking rods, which are used to realize the disassembly, assembly, transport docking and positioning of the voltage transformer trolley; The lifting and adjusting mechanism is installed on the transfer vehicle body and is used to adjust the height of the cabinet docking mechanism; The front and rear leveling mechanism, connected to the front moving wheels and the rear moving assembly, is used to maintain the front and rear balance of the transfer vehicle body; The left and right leveling mechanism is connected to the front moving wheels on both sides and is used to level the transfer vehicle from left to right.

[0006] By adopting the above technical solution, a transfer vehicle body, front moving wheels, rear moving components, cabinet docking mechanism, lifting and adjusting mechanism, front and rear leveling mechanism, and left and right leveling mechanism are set up. The docking rod of the cabinet docking mechanism is used to achieve precise alignment between the transfer vehicle and the high-voltage switch cabinet, and complete the disassembly, assembly, transportation, docking and positioning of the voltage transformer. The front and rear leveling mechanism and the left and right leveling mechanism are used to adaptively adjust the attitude of the transfer vehicle body to ensure that the vehicle body is always horizontally balanced during the transfer process, effectively preventing the vehicle body from tilting and deviating, and maintaining the stable transfer of the voltage transformer. Meanwhile, the lifting mechanism can adjust the height of the docking mechanism to adapt to handling and docking work at different heights. The ends of both docking rods are provided with inclined guide surfaces to help guide and limit the movement of the voltage transformer.

[0007] Preferably, the cabinet docking mechanism includes a movable bracket, on which a bidirectional lead screw is rotatably mounted, and an adjusting wheel is fixed at the end of the bidirectional lead screw. The two docking rods are respectively threaded onto the two threads of the bidirectional lead screw.

[0008] Preferably, the lifting adjustment mechanism includes a support frame fixed to the surface of the transfer vehicle body, a drive screw rotatably mounted on the support frame, a drive motor fixed on the support frame, an end of the drive screw fixedly connected to the output shaft of the drive motor, and a sliding block fixed to the side of the movable bracket, the sliding block being threaded onto the outer surface of the drive screw.

[0009] Preferably, two guide sliders are fixedly installed on the side of the mobile bracket, and the support frame is provided with a sliding groove, in which the guide sliders are slidably disposed.

[0010] Preferably, the rear moving assembly includes an adjusting bracket, in which a bidirectional threaded rod is rotatably mounted and a handle is fixed to the end of the bidirectional threaded rod. Support rods are threaded onto the outer surfaces of both threads of the bidirectional threaded rod, and support wheels are mounted at the ends of the support rods. The outer wall of the support rods is in contact with the inner wall of the adjusting bracket.

[0011] Preferably, a damper is fixedly installed on the top of the adjusting bracket, a limit guide rod is connected to the top of the damper, the limit guide rod is slidably mounted on the transfer vehicle body, an elastic element is sleeved on the outer surface of the damper, and the top end of the elastic element is connected to the transfer vehicle body, an adjusting plate is slidably installed on the outer surface of the damper, the bottom end of the elastic element is connected to the adjusting plate, an adjusting screw is rotatably installed on the top plate of the adjusting bracket, and the adjusting plate is threaded onto the outer surface of the adjusting screw.

[0012] Preferably, the front and rear leveling mechanism includes a rotating rod rotatably mounted on the transport vehicle body. Both ends of the rotating rod are fixed with adaptive adjustment frames. Connecting blocks are fixed above the front moving wheel on the same side and at the top of the limiting guide rod. Push rods are installed on both connecting blocks. Two sliding grooves are opened on the adaptive adjustment frame, and the push rods are slidably disposed in the corresponding sliding grooves.

[0013] Preferably, a pull rod is rotatably mounted on the bottom of the adaptive adjustment frame, and a counterweight is rotatably mounted on the bottom end of the pull rod. Limiting frames are fixed on both sides of the counterweight above the transport vehicle body. The limiting frames have protruding limiting ridges inside, and limiting grooves are opened on both sides of the counterweight opposite to the limiting ridges.

[0014] Preferably, a mounting frame is fixedly installed at the bottom of the transfer vehicle body, a clamping block is slidably installed inside the mounting frame, and a movement channel is provided on the transfer vehicle body directly opposite the clamping block. The clamping block has locking teeth on its upper part, and the counterweight has a toothed groove at its bottom that mates with the teeth. A groove is provided inside the mounting frame, and an adjusting ball is placed within the groove. The bottom of the clamping block has an inclined surface that aligns with the adjusting ball. Several elastic elements are fixedly installed inside the mounting frame, with both ends of each elastic element fixedly installed on the inner wall of the mounting frame and on the clamping block, respectively. Preferably, the left and right leveling mechanism includes a connecting cylinder slidably mounted on the transport vehicle body. The top end of the connecting cylinder is fixedly connected to a connecting block. A piston rod is slidably mounted inside the connecting cylinder. A push plate that fits against the inner wall of the connecting cylinder is fixed to the top end of the piston rod. The bottom end of the piston rod is connected to the front moving wheel through a spring shock absorber. The connecting cylinder is provided with a liquid inlet and a liquid return outlet on the upper and lower sides of the push plate, respectively. The liquid inlet and liquid return outlet of the connecting cylinder on both sides are connected to each other through a liquid inlet pipe and a liquid return pipe, respectively.

[0015] Working principle: The transfer vehicle is moved to the working position. The drive motor drives the drive screw to rotate, and the rotation of the drive screw drives the moving support to move up and down. The height of the support frame is adjusted to correspond to the position of the voltage transformer. The double-threaded rod is driven to rotate by the handle. The rotation of the double-threaded rod drives the support base rods to move away from each other or move closer to each other. The distance between the two support base rods is adjusted to the sides of the voltage transformer. The voltage transformer is then moved and placed on the docking rod and fixed by means of straps, etc. The mobile transport vehicle moves and transports voltage transformers. During the transport process, when encountering ground bumps or depressions, the front moving wheels or support wheels will move up and down. The connecting block drives the push rod to slide inside the adaptive adjustment frame. At the same time, the adaptive adjustment frame adjusts the corresponding positions of the front moving wheels or support wheels so that the transport vehicle can be in a balanced state. When the adaptive adjustment frame rotates and tilts, the adaptive adjustment frame pulls the connecting rod to drive the counterweight to move accordingly, thereby changing the center of gravity distribution of the transfer vehicle, realizing automatic leveling of the vehicle body, keeping the vehicle body in a balanced state and avoiding tilting. When the center of gravity of the transfer vehicle tilts, the adjusting ball rolls and deflects under the action of gravity and presses against the inclined surface of the clamping block. The clamping block moves downward under the action of the elastic element II, releasing the lock on the counterweight. When the center of gravity of the transfer vehicle returns to a balanced state, the adjusting ball rolls in the opposite direction, pushing the clamping block upward, so that the clamping block engages with the counterweight, thereby achieving automatic locking of the counterweight. When the transfer vehicle tilts to the left or right, the hydraulic oil automatically compensates for the displacement of the push plate. Combined with the buffering effect of the spring shock absorber, it automatically adjusts the support height of the wheels on both sides to achieve adaptive leveling of the transfer vehicle, avoids tilting of the vehicle body on one side, and ensures a smooth and safe transfer process of the voltage transformer.

[0016] This invention provides a transfer device for voltage transformers in power applications. It offers the following advantages: 1. This invention, by setting up a rotating rod, an adaptive adjustment frame, a connecting block, and a pushing rod, allows the front moving wheel or support wheel to move up and down when encountering ground protrusions or depressions during transport. The connecting block drives the pushing rod to slide inside the adaptive adjustment frame, while the adaptive adjustment frame adjusts the corresponding positions of the front moving wheel or support wheel, so that the transport vehicle can be in a balanced state, avoiding tilting at the offset angle, which could cause damage to the inside of the voltage transformer.

[0017] 2. This invention sets up a pulling link, a counterweight, and a limiting frame. The limiting frame limits and guides the counterweight. When the adaptive adjustment frame rotates and tilts, the adaptive adjustment frame moves the counterweight accordingly by pulling the link, thereby changing the center of gravity distribution of the transfer vehicle, realizing automatic leveling of the vehicle body, keeping the vehicle body in a balanced state and avoiding tilting.

[0018] 3. This invention, by setting a locking block, an adjusting ball, and an elastic element two, drives the locking block to reset downwards, thus separating and unlocking the locking block from the counterweight. When the center of gravity of the transport vehicle tilts, the adjusting ball rolls and shifts under the action of gravity, pressing against the tilted surface of the locking block. The locking block moves downwards under the action of the elastic element two, releasing the lock on the counterweight. When the center of gravity of the transport vehicle returns to a balanced state, the adjusting ball rolls in the opposite direction, pushing the locking block upwards, so that the locking block engages with the counterweight, achieving automatic locking of the counterweight, which can further ensure the balance of the transport vehicle.

[0019] 4. This invention, by setting up connecting cylinders, piston rods, spring dampers, push plates, inlet pipes, and return pipes, allows hydraulic oil inside the connecting cylinders on both sides to circulate between them through the inlet and return pipes. When the transport vehicle body tilts to the left or right, the hydraulic oil automatically compensates for the displacement of the push plate. Combined with the buffering effect of the spring dampers, it automatically adjusts the support height of the wheels on both sides, achieving adaptive leveling of the transport vehicle to the left and right, avoiding unilateral tilting of the vehicle body, and ensuring a smooth and safe transport process for the voltage transformer.

[0020] 5. This invention, by setting up a bidirectional threaded rod, a support base rod, and a support wheel, drives the bidirectional threaded rod to rotate via a handle. The rotation of the bidirectional threaded rod causes the support base rods to move away from or closer to each other, thus adjusting the distance between the two support base rods. The movement of the support base rods drives the support wheel to move synchronously. The support range can be changed and adjusted according to work requirements, further improving the stability of transportation. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention from another angle; Figure 3 This is a schematic diagram of the lifting adjustment mechanism and cabinet docking mechanism of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the transfer vehicle body of the present invention; Figure 5 This is a schematic diagram of the rear moving component structure of the present invention; Figure 6 This is another cross-sectional structural diagram of the transfer vehicle body of the present invention; Figure 7 This is a schematic cross-sectional view of the mounting bracket of the present invention; Figure 8 This is another cross-sectional view of the mounting bracket of the present invention; Figure 9 This is a schematic cross-sectional view of the connecting cylinder structure of the present invention.

[0022] 1. Transfer vehicle body; 2. Front moving wheels; 3. Rear moving assembly; 301. Support base rod; 302. Support wheel; 303. Adjusting bracket; 304. Two-way threaded rod; 305. Limiting guide rod; 306. Damper; 307. Elastic element one; 308. Adjusting screw; 309. Adjusting plate; 4. Lifting and adjusting mechanism; 401. Support frame; 402. Drive screw; 403. Sliding block; 404. Drive motor; 5. Cabinet docking mechanism; 501. Moving bracket; 502. Two-way lead screw 503. Connecting rod; 6. Front and rear leveling mechanism; 601. Adaptive adjustment frame; 602. Connecting block; 603. Rotating rod; 604. Push rod; 605. Pulling connecting rod; 606. Counterweight block; 607. Limiting frame; 608. Adjusting ball; 609. Elastic component II; 610. Mounting frame; 611. Clamping block; 7. Left and right leveling mechanism; 701. Connecting cylinder; 702. Piston rod; 703. Spring shock absorber; 704. Push plate; 705. Liquid inlet pipe; 706. Liquid return pipe. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a transfer device for voltage transformers in a power scenario, comprising: Transport vehicle body 1; The front moving wheels 2 and the rear moving components 3 are respectively set on the front and rear sides of the transfer vehicle body 1; Cabinet docking mechanism 5 includes two transport docking rods 503, which are used to realize the disassembly, assembly, transport docking and positioning of voltage transformer trolley; The lifting and adjusting mechanism 4 is installed on the transfer vehicle body 1 and is used to adjust the height of the cabinet docking mechanism 5; The front and rear leveling mechanism 6 is connected to the front moving wheel 2 and the rear moving assembly 3 to maintain the front and rear balance of the transfer vehicle body 1; The left and right leveling mechanism 7 is connected to the two front moving wheels 2 on both sides and is used for left and right leveling of the transfer vehicle.

[0025] By setting up a transfer trolley body 1, front moving wheels 2, rear moving components 3, cabinet docking mechanism 5, lifting and adjusting mechanism 4, front and rear leveling mechanism 6, and left and right leveling mechanism 7, the docking rod 503 of the cabinet docking mechanism 5 is used to achieve precise alignment between the transfer trolley and the high-voltage switch cabinet, and complete the disassembly, assembly, transportation, docking and positioning of the voltage transformer. The front and rear leveling mechanism 6 and the left and right leveling mechanism 7 are used to adaptively adjust the attitude of the transfer trolley body 1 to ensure that the trolley body is always horizontally balanced during the transfer process, effectively preventing the trolley body from tilting and deviating, and maintaining the stable transfer of the voltage transformer. Meanwhile, the lifting mechanism can adjust the height of the docking mechanism to adapt to different heights of handling and docking work. The ends of the two docking rods 503 are provided with inclined guide surfaces to help guide and limit the movement of the voltage transformer.

[0026] For details, please refer to the appendix. Figure 3 The cabinet docking mechanism 5 includes a movable bracket 501, on which a bidirectional lead screw 502 is rotatably mounted, and an adjusting wheel is fixed at the end of the bidirectional lead screw 502. Two docking rods 503 are respectively threaded onto the two threads of the bidirectional lead screw 502.

[0027] By setting up a bidirectional lead screw 502, rotating the adjusting wheel drives the bidirectional lead screw 502 to rotate. The rotation of the bidirectional lead screw 502 drives the two docking rods 503 to move closer or further apart, thereby adjusting the distance between the two docking rods 503 to suit the handling and docking work of voltage transformers of different specifications, thus improving the applicability range.

[0028] For details, please refer to the appendix. Figure 3 The lifting and adjusting mechanism 4 includes a support frame 401 fixed to the surface of the transfer vehicle body 1. A drive screw 402 is rotatably mounted on the support frame 401. A drive motor 404 is fixed on the support frame 401. The end of the drive screw 402 is fixedly connected to the output shaft of the drive motor 404. A sliding block 403 is fixed on the side of the movable bracket 501. The sliding block 403 is threaded onto the outer surface of the drive screw 402. Two guide sliders are fixedly mounted on the side of the movable bracket 501. A groove is provided on the support frame 401, and the guide sliders are slidably disposed in the groove.

[0029] By setting up a drive motor 404, a drive screw 402, and a sliding block 403, the drive motor 404 drives the drive screw 402 to rotate, while the guide slider provides further support and guidance for the moving bracket 501, improving the stability of the moving bracket 501. The rotation of the drive screw 402 drives the moving bracket 501 to move up and down, adjusting the height of the support frame to adapt to different working environments and to be used for operation on equipment of different heights.

[0030] For details, please refer to the appendix. Figure 5The rear moving component 3 includes an adjusting bracket 303. A bidirectional threaded rod 304 is rotatably mounted inside the adjusting bracket 303, and a handle is fixed to the end of the bidirectional threaded rod 304. A support base rod 301 is threadedly mounted on the outer surface of both threads of the bidirectional threaded rod 304. A support wheel 302 is mounted on the end of the support base rod 301. The outer wall of the support base rod 301 is in contact with the inner wall of the adjusting bracket 303.

[0031] By setting up a bidirectional threaded rod 304, a support base rod 301, and a support wheel 302, the bidirectional threaded rod 304 is driven to rotate by a handle. The rotation of the bidirectional threaded rod 304 drives the support base rods 301 to move away from or closer to each other, thereby adjusting the distance between the two support base rods 301. The movement of the support base rods 301 drives the support wheel 302 to move synchronously. The support range can be changed and adjusted according to work requirements to further improve the stability of transportation.

[0032] For details, please refer to the appendix. Figure 5 A damper 306 is fixedly installed on the top of the adjusting bracket 303. A limit guide rod 305 is connected to the top of the damper 306. The limit guide rod 305 is slidably mounted on the transfer vehicle body 1. An elastic element 307 is sleeved on the outer surface of the damper 306. The top end of the elastic element 307 is connected to the transfer vehicle body 1. An adjusting plate 309 is slidably installed on the outer surface of the damper 306. The bottom end of the elastic element 307 is connected to the adjusting plate 309. An adjusting screw 308 is rotatably installed on the top plate of the adjusting bracket 303. The adjusting plate 309 is threaded onto the outer surface of the adjusting screw 308.

[0033] By setting up a damper 306, a limiting guide rod 305, an elastic element 307, an adjusting plate 309, and an adjusting screw 308, the limiting guide rod 305 achieves vertical limiting guidance. Rotating the adjusting screw 308 can drive the adjusting plate 309 to slide up and down along the outer wall of the damper 306 to adjust the preload of the elastic element 307. The damper 306 and the elastic element 307 cooperate to buffer and reduce vibration of the moving wheel, while suppressing the rebound and shaking of the elastic element 307, thus improving the stability of the transfer process.

[0034] For details, please refer to the appendix. Figure 4 Appendix Figure 6 Appendix Figure 7 and attached Figure 8 The front and rear leveling mechanism 6 includes a rotating rod 603 rotatably mounted on the transfer vehicle body 1. Both ends of the rotating rod 603 are fixed with adaptive adjustment frames 601. Connecting blocks 602 are fixed above the front moving wheel 2 on the same side and at the top of the limiting guide rod 305. Push rods 604 are installed on both connecting blocks 602. Two sliding grooves are opened on the adaptive adjustment frame 601, and the push rods 604 are slidably set in the corresponding sliding grooves.

[0035] By setting up a rotating rod 603, an adaptive adjustment frame 601, a connecting block 602, and a pushing rod 604, when encountering ground protrusions or depressions during the transfer process, the front moving wheel 2 or the support wheel 302 will shift up and down. The connecting block 602 drives the pushing rod 604 to slide inside the adaptive adjustment frame 601. At the same time, the adaptive adjustment frame 601 adjusts the corresponding positions of the front moving wheel 2 or the support wheel 302, so that the transfer vehicle body 1 can be in a balanced state, avoiding tilting at the offset angle, which could cause damage to the inside of the voltage transformer.

[0036] For details, please refer to the appendix. Figure 7 and attached Figure 8 The bottom of the adaptive adjustment frame 601 is rotatably mounted with a pull link 605, and the bottom end of the pull link 605 is rotatably mounted with a counterweight 606. The upper part of the transfer vehicle body 1 is fixed with limit frames 607 on both sides of the counterweight 606. The inside of the limit frame 607 is provided with a protruding limit ridge, and the two sides of the counterweight 606 are provided with limit grooves at the positions opposite to the limit ridge.

[0037] By setting up a pull link 605, a counterweight 606, and a limiting frame 607, the limiting frame 607 limits and guides the counterweight 606. When the adaptive adjustment frame 601 rotates and tilts, the adaptive adjustment frame 601 drives the counterweight 606 to move accordingly by pulling the pull link 605, thereby changing the center of gravity distribution of the transfer vehicle, realizing automatic leveling of the vehicle body, keeping the vehicle body in a balanced state, and avoiding tilting.

[0038] For details, please refer to the appendix. Figure 7 and attached Figure 8 A mounting bracket 610 is fixedly installed at the bottom of the transfer vehicle body 1. A clamping block 611 is slidably installed inside the mounting bracket 610. A movement channel is provided on the transfer vehicle body 1 directly opposite the clamping block 611. A locking tooth is provided above the clamping block 611. A tooth groove is provided at the bottom of the counterweight block 606 to cooperate with the tooth. A groove is provided inside the mounting bracket 610 and an adjusting ball 608 is placed in the groove. An inclined surface is provided at the bottom of the clamping block 611 to cooperate with the adjusting ball 608. Several elastic elements 609 are fixedly installed inside the mounting bracket 610. The two ends of the elastic elements 609 are fixedly installed on the inner wall of the mounting bracket 610 and the clamping block 611, respectively.

[0039] By setting a clamping block 611, an adjusting ball 608, and an elastic element 609, the elastic element 609 drives the clamping block 611 to reset downwards, so that the clamping block 611 separates and unlocks from the counterweight 606. When the center of gravity of the transfer vehicle 1 tilts, the adjusting ball 608 rolls and shifts under the action of gravity and presses against the inclined surface of the clamping block 611. The clamping block 611 moves downwards under the action of the elastic element 609, releasing the lock on the counterweight 606. When the center of gravity of the transfer vehicle 1 returns to a balanced state, the adjusting ball 608 rolls in the opposite direction, pushing the clamping block 611 to move upwards, so that the clamping block 611 engages with the counterweight 606, realizing the automatic locking of the counterweight 606, which can further ensure the balance of the transfer vehicle 1. The mounting bracket 610 is provided with an arc-shaped groove that matches the adjusting ball 608.

[0040] For details, please refer to the appendix. Figure 9 The left and right leveling mechanism 7 includes a connecting cylinder 701 slidably mounted on the transfer vehicle body 1. The top end of the connecting cylinder 701 is fixedly connected to the connecting block 602. A piston rod 702 is slidably mounted inside the connecting cylinder 701. A push plate 704 that fits against the inner wall of the connecting cylinder 701 is fixed to the top end of the piston rod 702. The bottom end of the piston rod 702 is connected to the front moving wheel 2 through a spring shock absorber 703. The connecting cylinder 701 is provided with a liquid inlet and a liquid return on the upper and lower sides of the push plate 704, respectively. The liquid inlet and liquid return on both sides of the connecting cylinder 701 are connected to each other through a liquid inlet pipe 705 and a liquid return pipe 706, respectively.

[0041] By setting up a connecting cylinder 701, piston rod 702, spring damper 703, push plate 704, inlet pipe 705, and return pipe 706, the connecting cylinder 701 is equipped with an oil inlet and an exhaust valve. The hydraulic oil inside the connecting cylinders 701 on both sides can circulate with each other through the inlet pipe 705 and the return pipe 706. When the transfer vehicle body 1 tilts to the left or right, the hydraulic oil automatically compensates for the displacement of the push plate 704. With the buffering effect of the spring damper 703, the support height of the wheels on both sides is automatically adjusted to achieve adaptive leveling of the transfer vehicle, avoid unilateral tilting of the vehicle body, and ensure the smooth and safe transfer of the voltage transformer. It can also cope with the instantaneous attitude changes caused by starting, braking, or road bumps, and absorb shocks and suppress vibrations.

[0042] Working principle: The transfer vehicle 1 is moved to the working position. The drive motor 404 drives the drive screw 402 to rotate. The rotation of the drive screw 402 drives the moving bracket 501 to move up and down, and adjusts the height of the support frame to correspond to the position of the voltage transformer. The double-threaded rod 304 is rotated by the handle. The rotation of the double-threaded rod 304 causes the support base rods 301 to move away from or closer to each other. The distance between the two support base rods 301 is adjusted to the sides of the voltage transformer. The voltage transformer is then moved and placed on the docking rod 503 and fixed by means of straps or other means. The mobile transport vehicle 1 transports voltage transformers. During the transport process, when encountering ground bumps or depressions, the front moving wheel 2 or the support wheel 302 will move up and down. The connecting block 602 drives the push rod 604 to slide inside the adaptive adjustment frame 601. At the same time, the adaptive adjustment frame 601 adjusts the corresponding positions of the front moving wheel 2 or the support wheel 302 so that the transport vehicle 1 can be in a balanced state. When the adaptive adjustment frame 601 rotates and tilts, the adaptive adjustment frame 601 pulls the connecting rod 605 to drive the counterweight 606 to move accordingly, thereby changing the center of gravity distribution of the transfer vehicle, realizing automatic leveling of the vehicle body, keeping the vehicle body in a balanced state and avoiding tilting. When the center of gravity of the transfer vehicle body 1 tilts, the adjusting ball 608 rolls and deflects under the action of gravity and presses against the inclined surface of the clamping block 611. The clamping block 611 moves downward under the action of the elastic element 609, releasing the lock on the counterweight 606. When the center of gravity of the transfer vehicle body 1 returns to a balanced state, the adjusting ball 608 rolls in the opposite direction, pushing the clamping block 611 to move upward, so that the clamping block 611 engages with the counterweight 606, realizing the automatic locking of the counterweight 606. When the transfer vehicle 1 tilts to the left or right, the hydraulic oil automatically compensates for the displacement of the push plate 704. Combined with the buffering effect of the spring shock absorber 703, the support height of the wheels on both sides is automatically adjusted to achieve adaptive leveling of the transfer vehicle, avoid tilting of the vehicle body on one side, and ensure a smooth and safe transfer process of the voltage transformer.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transfer device for voltage transformers in a power application scenario, characterized in that, include: Transfer vehicle body (1); The front moving wheels (2) and the rear moving components (3) are respectively set on the front and rear sides of the transfer vehicle body (1); Cabinet docking mechanism (5), the cabinet docking mechanism (5) includes two transport docking rods (503), which are used to realize the disassembly, assembly, transport docking and positioning of the voltage transformer trolley; The lifting adjustment mechanism (4) is installed on the transfer vehicle body (1) and is used to adjust the height of the cabinet docking mechanism (5); The front and rear leveling mechanism (6) is connected to the front moving wheel (2) and the rear moving assembly (3) to maintain the front and rear balance of the transfer vehicle body (1); The left and right leveling mechanism (7) is connected to the two front moving wheels (2) on both sides and is used for left and right leveling of the transfer vehicle.

2. The transport device for power scenario voltage transformers according to claim 1, characterized in that: The cabinet docking mechanism (5) includes a movable bracket (501), on which a bidirectional lead screw (502) is rotatably mounted, and an adjusting wheel is fixed at the end of the bidirectional lead screw (502). The two docking rods (503) are respectively threaded onto the two threads of the bidirectional lead screw (502).

3. The transport device for power scenario voltage transformers according to claim 2, characterized in that: The lifting adjustment mechanism (4) includes a support frame (401) fixed on the surface of the transfer vehicle body (1), a drive screw (402) is rotatably mounted on the support frame (401), a drive motor is fixed on the support frame (401), the end of the drive screw (402) is fixedly connected to the output shaft of the drive motor, and a sliding block (403) is fixed on the side of the movable bracket (501), and the sliding block (403) is threaded onto the outer surface of the drive screw (402).

4. The transport device for power scenario voltage transformers according to claim 3, characterized in that: Two guide sliders are fixedly installed on the side of the movable bracket (501), and the support frame (401) is provided with a sliding groove, in which the guide sliders are slidably disposed.

5. The transport device for power scenario voltage transformers according to claim 1, characterized in that: The rear moving assembly (3) includes an adjusting bracket (303), in which a bidirectional threaded rod (304) is rotatably mounted and a handle is fixed at the end of the bidirectional threaded rod (304). Support rods (301) are threadedly mounted on the outer surfaces of the two threads of the bidirectional threaded rod (304). Support wheels (302) are mounted at the end of the support rods (301). The outer wall of the support rods (301) is in contact with the inner wall of the adjusting bracket (303).

6. The transport device for power scenario voltage transformers according to claim 5, characterized in that: A damper (306) is fixedly installed on the top of the adjusting bracket (303). A limit guide rod (305) is connected to the top of the damper (306). The limit guide rod (305) is slidably mounted on the transfer vehicle body (1). An elastic element (307) is sleeved on the outer surface of the damper (306). The top end of the elastic element (307) is connected to the transfer vehicle body (1). An adjusting plate (309) is slidably installed on the outer surface of the damper (306). The bottom end of the elastic element (307) is connected to the adjusting plate (309). An adjusting screw (308) is rotatably installed on the top plate of the adjusting bracket (303). The adjusting plate (309) is threaded onto the outer surface of the adjusting screw (308).

7. The transport device for power scenario voltage transformers according to claim 1, characterized in that: The front and rear leveling mechanism (6) includes a rotating rod (603) rotatably mounted on the transport vehicle body (1). Both ends of the rotating rod (603) are fixed with adaptive adjustment frames (601). Connecting blocks (602) are fixed above the front moving wheel (2) on the same side and at the top of the limiting guide rod (305). Push rods (604) are installed on both connecting blocks (602). Two sliding grooves are opened on the adaptive adjustment frame (601), and the push rods (604) are slidably arranged in the corresponding sliding grooves.

8. The transport device for power scenario voltage transformers according to claim 7, characterized in that: The bottom of the adaptive adjustment frame (601) is rotatably mounted with a pull link (605), and the bottom end of the pull link (605) is rotatably mounted with a counterweight (606). The upper part of the transfer vehicle body (1) is fixed with limit frames (607) on both sides of the counterweight (606). The inside of the limit frame (607) is provided with a protruding limit ridge, and the two sides of the counterweight (606) are provided with limit grooves at the positions opposite to the limit ridge.

9. The transport device for power scenario voltage transformers according to claim 8, characterized in that: The bottom of the transfer vehicle body (1) is fixedly installed with a mounting frame (610). A clamping block (611) is slidably installed inside the mounting frame (610). A movement channel is provided on the transfer vehicle body (1) directly opposite the clamping block (611). A locking tooth is provided above the clamping block (611). A tooth groove is provided at the bottom of the counterweight block (606) to cooperate with the tooth. A groove is provided inside the mounting frame (610) and an adjusting ball (608) is placed in the groove. An inclined surface is provided at the bottom of the clamping block (611) to cooperate with the adjusting ball (608). Several elastic elements (609) are fixedly installed inside the mounting frame (610). The two ends of the elastic elements (609) are fixedly installed on the inner wall of the mounting frame (610) and the clamping block (611) respectively.

10. The transport device for power scenario voltage transformers according to claim 1, characterized in that: The left and right leveling mechanism (7) includes a connecting cylinder (701) slidably mounted on the transport vehicle body (1). The top end of the connecting cylinder (701) is fixedly connected to the connecting block (602). A piston rod (702) is slidably mounted inside the connecting cylinder (701). A push plate (704) that fits against the inner wall of the connecting cylinder (701) is fixed at the top end of the piston rod (702). The bottom end of the piston rod (702) is connected to the front moving wheel (2) through a spring shock absorber (703). The connecting cylinder (701) is provided with an inlet and a return port on the upper and lower sides of the push plate (704). The inlet and return ports of the connecting cylinder (701) on both sides are connected to each other through an inlet pipe (705) and a return pipe (706).

Images