A synchronous stable lifting device for transformer

Abstract

The application provides a synchronous stable lifting device for a transformer, and relates to the technical field of transformer lifting devices, and comprises a moving assembly, a moving plate installed on the moving assembly, and a transfer mechanism installed below the moving plate, wherein the transfer mechanism is used for hoisting a transformer; the transfer mechanism comprises an expansion assembly, a transmission assembly, a suspension assembly and a top clamping assembly, and a first motor is fixed on the moving plate; the first motor, the expansion assembly, the suspension assembly and the top clamping assembly are cooperatively and adaptively connected, so that the linkage of three actions of lifting device width adjustment, transformer body lifting and bottom outer side top clamping stabilization is realized; after the first motor is started, the first motor can drive the expansion assembly to reciprocate, and then the transmission assembly is used to drive the rotation of the rotating shaft, so that the suspension assembly and the top clamping assembly can operate, the operation steps are simplified, the transfer efficiency is improved, the problem of asynchronous action of multiple power sources is avoided, and the cost of multiple power sources is also high.

Description

Technical Field

[0001] This invention relates to the field of transformer lifting equipment technology, specifically a synchronous and stable lifting device for transformers. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core). It has multiple functions, including voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (for magnetically saturated transformers). During the manufacturing and transportation of transformers, lifting equipment is required. Lifting equipment is a common tool used for hoisting and lifting various items.

[0003] Patent publication number CN117886203A discloses a hoisting device for installing power transformers. This invention relates to the field of power transformer hoisting technology and includes a hoisting mechanism for hoisting and clamping the power transformer, and connecting fasteners at the bottom of the hoisting mechanism; a stabilizing mechanism for providing multi-point support for the power transformer, and a plug-in at the top of the stabilizing mechanism; the hoisting mechanism is positioned above the stabilizing mechanism and is fixedly connected to the plug-in at the top of the stabilizing mechanism via connecting fasteners; wherein the hoisting mechanism includes a lifting frame, the bottom of which is fixedly connected to the plug-in at the top of the stabilizing mechanism via connecting fasteners. This hoisting device for installing power transformers uses an external drive to lift the hoisting frame, causing the entire device to move upwards along with the power transformer, thus achieving the purpose of hoisting and raising the power transformer. Patent publication number CN113200469A discloses a transformer hoisting machine, including a base and a connecting seat. The base is equipped with threaded bushings and wheels. The threaded bushings are welded to the corners of the base, and a transmission screw is threadedly connected to the bushings. The transmission screw has a handwheel and a base plate. The handwheel is fixed to the top of the transmission screw with screws, and the base plate is welded to the bottom of the transmission screw. The wheels are symmetrically connected to the front and rear ends of both sides of the base via axles. The connecting seat is fixed to the center of the top of the base with screws. This invention can easily hoist and install transformers, effectively improving installation efficiency.

[0004] Although the aforementioned patents have solved the problems of cumbersome operation and anti-swaying, the following shortcomings still exist: Existing transformers are usually irregular cuboids or near-cuboids with fixed lifting lugs at the top, while the bottom is a flat surface or a non-completely flat surface with heat sinks. The center of gravity is high, and the casing must not be bumped or excessively squeezed. In the current transformer hoisting devices, the anti-sway system and the anti-fall system are independent and functionally separated. Although there is an active anti-sway structure, it is costly and difficult to control. Traditional anti-fall designs only respond passively after breakage and cannot provide early warning. The two cannot work together, especially in the event of sudden and violent swaying, where the capacity may be insufficient and the anti-fall system cannot be activated, creating a safety blind spot. Summary of the Invention

[0005] The purpose of this invention is to provide a synchronous and stable hoisting device for transformers, which aims to solve the problem that in the prior art, anti-sway devices and anti-fall devices are mostly set up independently, which are costly and cannot work together, resulting in a high risk of transformer transportation and suspension.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: the synchronous stabilizing and hoisting device for transformers includes a movable component, a movable plate mounted on the movable component, and a transfer mechanism mounted below the movable plate, wherein the transfer mechanism hoists the transformer; The transfer mechanism includes an extension component, a transmission component, a suspension component, and a clamping component. A first motor is fixed on the moving plate, and the output shaft of the first motor is connected to the extension component. A limiting vertical cylinder extending in the vertical direction is fixed below the extension component. The transmission component is disposed inside the limiting vertical cylinder. The extension component is connected to the transmission component. The upper end of the transmission component is connected to the suspension component. The suspension component is connected to the transformer. The lower end of the transmission component is connected to the clamping component. The clamping component abuts against the lower outer end of the transformer.

[0007] Preferably, the extension component includes a main bevel gear, a secondary bevel gear, a connecting rod, a first bevel gear set, and a telescopic component. The bottom of the movable plate is fixed with a fixed frame, and the first bevel gear set and the telescopic component are both disposed within the fixed frame. The output shaft of the first motor is fixedly connected to the main bevel gear via a vertical rod. The end of the connecting rod near the main bevel gear is fixedly connected to the sub-bevel gear. The connecting rod rotates on the fixed frame. The main bevel gear meshes with the sub-bevel gear. The end of the connecting rod away from the main bevel gear is connected to the first bevel gear set for transmission. The first bevel gear set is connected to the telescopic component for transmission, and an extension plate is installed on the telescopic component.

[0008] Preferably, the telescopic component includes a short connecting rod, a long connecting rod, a fixed rack, a movable rack, and a gear set; The short connecting rod is connected to the first bevel gear set for transmission, the short connecting rod and the long connecting rod are hinged together, the long connecting rod is hinged together with the gear set, the fixed rack is fixed inside the fixed frame, the movable rack is guided and slidable inside the fixed frame, and the gear set meshes between the fixed rack and the movable rack. The end of the movable rack away from the short connecting rod is fixedly connected to the extension plate, and the bottom of the movable plate is fixed with a track plate for guiding the extension plate to slide. The limiting vertical cylinder is fixed to the bottom of the extension plate. The fixed frame has a cavity inside for the telescopic components to operate in.

[0009] Preferably, the transmission assembly includes a transmission rack, a transmission gear, a second bevel gear set, and a rotating shaft; The transmission rack is fixed on the upper surface of the track plate. The interior of the extension plate is provided with a cavity. The rotating shaft rotates in the cavity in the up-down direction. The rotating shaft is connected to a short shaft through a second bevel gear set. The transmission gear is fixed on the short shaft and is connected to the transmission rack.

[0010] Preferably, the suspension assembly includes a first sprocket set, a third bevel gear set, a second sprocket set, a main winding wheel, and a lifting winding wheel; The inner wall of the limiting vertical cylinder is fixed with an installation plate, and a fixed column is rotatably mounted on the installation plate. The rotating shaft and the fixed column are connected by a first sprocket group. The third bevel gear group is fixed on the fixed column and is connected to the second sprocket group. The second sprocket group is driven by a horizontal shaft, and the main winding wheel is fixed on the horizontal shaft. The lifting and winding wheel is installed at the lower end of the mounting plate. The lifting and winding wheel is connected to the horizontal shaft drive through an auxiliary sprocket set. The lifting and winding wheel is fixedly connected to the clamping assembly through a second rope.

[0011] Preferably, the auxiliary sprocket assembly includes an auxiliary main sprocket and an auxiliary secondary sprocket; The auxiliary main sprocket is fixedly connected to the crossbar, and the auxiliary secondary sprocket is drivenly connected to the lifting winding wheel.

[0012] Preferably, the clamping assembly includes a lifting frame and a clamping member mounted on the lifting frame; The second rope of the lifting winding wheel is fixedly connected to the top of the lifting frame, the clamping component is slidably connected to the rotating shaft, the lifting frame guide is inserted into the limiting vertical cylinder, the limiting vertical cylinder is provided with a limiting groove for the lifting frame to move up and down, and the rotating shaft passes through the lifting frame.

[0013] Preferably, the lifting frame includes four square inserts and four L-shaped inserts; The square insert is guided and inserted into the limiting vertical cylinder, and each L-shaped insert is inserted into two adjacent square inserts; The clamping member is installed on top of the square insert.

[0014] Preferably, the clamping component includes a third sprocket set, a fourth bevel gear set, a lead screw, and a clamping plate; The upper surface of the square insert has a fixed pin that rotates. The rotating shaft and the fixed pin are connected by a third sprocket set. The fourth bevel gear set is connected to the fixed pin. The lead screw rotates on the square insert and is connected to the fourth bevel gear set. The clamping top plate is threaded onto the lead screw, and the square insert has a sliding groove for guiding the clamping top plate to slide. When the rotating shaft rotates, it can also drive the lead screw to rotate. A pressure sensor is installed on the top plate, and the pressure sensor is connected to the first motor via a controller.

[0015] Preferably, the moving component includes a gantry and a position adjustment component; The bottom of the gantry is equipped with casters that roll on the ground. The position adjustment component is mounted on the gantry, and the movable plate is mounted on the position adjustment component.

[0016] The beneficial effects are: 1. By coordinating and adapting the first motor and the extension components, the suspension components and the clamping components, the three actions of adjusting the width of the lifting device, lifting the transformer body and stabilizing the bottom outer clamping are realized. When the first motor is started, the first motor can drive the extension components to reciprocate, and then drive the rotating shaft to rotate through the transmission components, so that the suspension components and the clamping components can operate. This simplifies the operation steps, improves the transfer efficiency, and avoids the problem of asynchronous actions that may occur with multiple power sources. Moreover, multiple power sources are also more expensive.

[0017] 2. This invention adopts a dual stabilization mechanism combining "upper suspension" and "lower clamping". The suspension component is responsible for bearing the main weight of the transformer, while the clamping component clamps the transformer horizontally from the outer edge of the bottom. This design forms a rigid constraint on the transformer in both vertical and horizontal directions, which can effectively suppress the swaying, shaking or rotation of the transformer due to inertia during the hoisting process, and significantly improve the stability and safety of the hoisting process.

[0018] 3. A pressure sensor is installed at the end of the clamping plate, which can be linked to the drive motor signal. When the clamping force reaches the preset safety value, the control system can automatically stop the motor to prevent damage to the transformer casing due to excessive clamping. This adds an intelligent protective layer to the hoisting process, improves the reliability of the operation, and the clamping plate can also support the bottom of the transformer, playing a role in preventing it from falling.

[0019] 4. Through the mechanical linkage design between the transmission component, suspension component and clamping component, the height of the clamping component can be automatically and synchronously adjusted with the lifting and lowering of the suspension component. This means that no matter the height of the transformer above the ground, the clamping plate can always automatically align with its bottom edge, achieving self-adaptive alignment, reducing the requirements for operator experience, and also reducing the risk of collisions to the transformer casing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the usage process of Embodiment 3 of the present invention; Figure 2 This is a structural schematic diagram of the usage process of Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the transfer mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the extended component of the present invention; Figure 5 In this invention Figure 4 A magnified structural diagram at point A; Figure 6 This is a partial cross-sectional structural schematic diagram of the fixed frame and track plate of the present invention; Figure 7 This is a structural schematic diagram of the telescopic component of the present invention; Figure 8 This is a schematic diagram of the transmission component of the present invention; Figure 9 In this invention Figure 8 A magnified structural diagram at point B; Figure 10 This is a schematic diagram of the suspension assembly of the present invention mounted on the mounting plate; Figure 11 This is a schematic diagram of the structure of the lifting and winding wheel of the present invention mounted on the mounting plate via an auxiliary sprocket assembly; Figure 12 In this invention Figure 11 A magnified structural diagram at point C; Figure 13 This is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 14 In this invention Figure 13 A magnified structural diagram at point D.

[0021] In the diagram: 1. Moving plate; 2. Transformer; 3. Transmission assembly; 301. Transmission rack; 302. Transmission gear; 303. Second bevel gear set; 304. Rotating shaft; 4. First motor; 5. Limiting vertical cylinder; 6. Main bevel gear; 7. Split bevel gear; 8. Connecting rod; 9. First bevel gear set; 10. Fixed frame; 11. Vertical rod; 12. Extension plate; 13. Telescopic component; 1301. Short connecting rod; 1302. Long connecting rod; 1303. Fixed rack; 1304. Movable rack; 1305. Gear set; 14. Track plate; 15. First chain 16. Third bevel gear set; 17. Second sprocket set; 18. Main winding wheel; 19. Lifting winding wheel; 20. Mounting plate; 21. Fixed column; 22. Auxiliary sprocket set; 2201. Auxiliary main sprocket; 2202. Auxiliary secondary sprocket; 23. Lifting frame; 2301. Square insert; 2302. L-shaped insert rod; 24. Top clamping component; 2401. Third sprocket set; 2402. Fourth bevel gear set; 2403. Lead screw; 2404. Top clamping plate; 25. Limiting groove; 26. Gantry frame; 27. Position adjustment component; 28. Moving wheel. Detailed Implementation

[0022] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0023] Example 1 A synchronous stabilizing hoisting device for a transformer includes a movable component, a movable plate 1 mounted on the movable component, and a transfer mechanism mounted below the movable plate 1. The transfer mechanism hoists a transformer 2 so that the transformer 2 is hoisted onto the movable component by the transfer mechanism, and then the transformer 2 is transferred by the movable component.

[0024] like Figure 2 and Figures 4-6 As shown, a first motor 4 is fixed on the movable plate 1. The output shaft of the first motor 4 is connected to the extension component for transmission. The transfer mechanism includes the extension component. A winding component is fixed on the extension component. The winding component is adapted to and hooked with the standard lifting lug on the transformer 2, so that when the extension component is extended, the transformer 2 can be suspended by the winding component, thereby improving the stability of the transformer 2 during suspension.

[0025] Specifically, the expansion assembly includes a main bevel gear 6, a secondary bevel gear 7, a connecting rod 8, a first bevel gear set 9, and a telescopic component 13. A fixed frame 10 is fixed to the bottom of the movable plate 1. In this embodiment, the fixed frame 10 serves as the mounting base for the first bevel gear set 9 and the telescopic component 13, improving their installation stability. Both the first bevel gear set 9 and the telescopic component 13 are housed within the fixed frame 10. The output shaft of the first motor 4 is fixedly connected to the main bevel gear 6 via a vertical rod 11. One end of the connecting rod 8 near the main bevel gear 6 is fixedly connected to the secondary bevel gear 7. The connecting rod 8 rotates on the fixed frame 10. After the first motor 4 starts, its output shaft can drive the main bevel gear 6 to rotate via the vertical rod 11. The main bevel gear 6 meshes with the secondary bevel gear 7, thus driving the secondary bevel gear 7 to rotate. In this embodiment, a main drive bevel gear is fixed on the output shaft of the first motor 4, and a secondary drive bevel gear is fixed on the vertical rod 11. The main drive bevel gear and the secondary drive bevel gear mesh, causing the first motor 4 to drive the vertical rod 11 to rotate. The end of the connecting rod 8 away from the main bevel gear 6 is connected to the first bevel gear set 9 for transmission. The first bevel gear set 9 is connected to the telescopic member 13 for transmission. An extension plate 12 is installed on the telescopic member 13. The rotation of the secondary bevel gear 7 can drive the telescopic member 13 to rotate through the first bevel gear set 9, causing the telescopic member 13 to reciprocate and extend. When the telescopic member 13 reciprocates, it can drive the extension plate 12 to move. The winding assembly is installed below the extension plate 12.

[0026] In this embodiment, the first bevel gear set 9 includes a first main bevel gear and a first auxiliary bevel gear. The first main bevel gear is fixedly connected to the connecting rod 8, and the first auxiliary bevel gear is fixedly connected to the telescopic member 13. The first main bevel gear and the first auxiliary bevel gear mesh with each other, so that the rotation of the connecting rod 8 can drive the telescopic member 13 to operate.

[0027] The telescopic component 13 includes a short connecting rod 1301, a long connecting rod 1302, a fixed rack 1303, a movable rack 1304, and a gear set 1305. The short connecting rod 1301 rotates synchronously with the first bevel gear. The short connecting rod 1301 and the long connecting rod 1302 are hinged together. The long connecting rod 1302 is hinged together with the gear set 1305. The fixed rack 1303 is fixed inside the fixed frame 10. When the short connecting rod 1301 rotates under the action of the first bevel gear, it can drive the long connecting rod 1302 to rotate. The movable rack 1304 slides within the fixed frame 10. The gear set 1305 meshes between the fixed rack 1303 and the movable rack 1304. In this embodiment, the gear set 1305 includes two rolling gears and a connecting plate. The two rolling gears rotate on the connecting plate, and the connecting plate is hinged to the long connecting rod 1302. When the long connecting rod 1302 rotates, it can push the connecting plate to move back and forth. When the connecting plate moves back and forth, the rolling gear meshes between the fixed rack 1303 and the movable rack 1304, so it can drive the movable rack 1304 to move back and forth. The end of the movable rack 1304 away from the short connecting rod 1301 is fixedly connected to the extension plate 12. The bottom of the movable plate 1 is fixed with a track plate 14 for guiding the sliding of the extension plate 12. The limiting vertical cylinder 5 is fixed to the bottom of the extension plate 12. When the movable rack 1304 moves, it can drive the extension plate 12 to move back and forth along the track plate 14, thereby driving the winding assembly to move back and forth. The fixed frame 10 has a cavity for the telescopic component 13 to run. The cavity is designed so that the short connecting rod 1301 and the long connecting rod 1302 will not get stuck when rotating.

[0028] In this embodiment, the winding assembly includes a winding motor and a winding wheel. The winding motor is fixed at the lower end of the extension plate 12, and the output shaft of the winding motor is fixedly connected to the winding wheel. When the winding motor is started, it can drive the winding wheel to wind and unwind the rope so that the standard lifting lug of the transformer 2 can be suspended.

[0029] like Figure 2 As shown, the moving component can transfer transformer 2 without the need for manual handling, which improves transfer efficiency and reduces the labor intensity of workers.

[0030] Specifically, the moving component includes a gantry frame 26 and a position adjustment component 27. In this embodiment, the structure and principle of the gantry frame 26 are existing technologies and will not be described in detail here. The bottom of the gantry frame 26 is equipped with a moving wheel 28, which rolls on the ground. The gantry frame 26 can be moved by the moving wheel 28. The position adjustment component 27 can adjust the position and height of the moving plate 1. The position adjustment component 27 is installed on the gantry frame 26, and the moving plate 1 is installed on the position adjustment component 27.

[0031] The position adjustment component 27 includes a horizontal movement component, a vertical movement component, and a height movement component. The horizontal movement component includes a horizontal motor, two horizontal limit rails, a horizontal synchronous belt assembly, and a moving horizontal plate. The structure and principle of the horizontal synchronous belt assembly are existing technologies and will not be described in detail here. The horizontal motor is fixed to the side of the gantry 26, the two horizontal limit rails are fixed to the top of the gantry 26, the horizontal synchronous belt assembly is rotatably mounted on the gantry 26, and one of the horizontal synchronous pulleys of the horizontal synchronous belt assembly is fixedly connected to the output shaft of the horizontal motor. The moving horizontal plate is guided and slidably on the two horizontal limit rails, and the moving horizontal plate is fixedly connected to the synchronous belt of the horizontal synchronous belt assembly, so that after the horizontal motor starts, it can drive the moving horizontal plate to move through the horizontal synchronous belt assembly. The vertical movement component includes a vertical motor, two vertical limit rails, a vertical synchronous belt assembly, and a moving vertical plate. The structure and principle of the vertical synchronous belt assembly are existing technologies and will not be described in detail here. The vertical motor is fixed to the moving horizontal plate, and the vertical synchronous belt assembly is mounted on the moving horizontal plate. On the moving horizontal plate, one of the vertical synchronous pulleys of the vertical synchronous belt assembly is fixedly connected to the output shaft of the vertical motor. Two vertical limit rails are fixed on the moving horizontal plate, and the moving vertical plate slides along the two vertical limit rails. The moving vertical plate is fixedly connected to the vertical synchronous belt of the vertical synchronous belt assembly, so that when the vertical synchronous belt rotates, it can drive the moving vertical plate to move along the extension direction of the vertical limit rails. The height moving assembly includes a height adjusting motor, a height adjusting gear, a height adjusting rack, a lifting rod, and a connecting chain. The height adjusting motor is fixed on the moving vertical plate, the height adjusting gear is fixedly connected to the output shaft of the height adjusting motor, the lifting rod slides along the moving vertical plate, the height adjusting rack is fixed on the lifting rod, and the height adjusting rack meshes with the height adjusting gear. One end of the connecting chain is fixedly connected to the upper end of the lifting rod, and the lower end of the connecting chain is fixedly connected to the moving vertical plate, so that when the height adjusting motor is started, it can drive the lifting rod to move up and down. The moving plate 1 is fixed on the lifting rod. The structure and principle of the position adjusting component 27 are existing technologies and will not be described in detail here.

[0032] Working principle: First, the lifting device is moved to a position above the transformer 2 to be transferred by the moving component. Then, the horizontal, vertical, and height adjustment motors in the position adjustment component are activated. Through the synchronous belt, gear rack, and other transmission mechanisms, the moving plate 1 is driven to perform three-dimensional spatial positioning, so that the winding component below is precisely aligned with the lifting point of the transformer 2. Subsequently, the first motor 4 is activated, which drives the telescopic component 13 through the main bevel gear 6, the branch bevel gear 7, and the first bevel gear set 9. This causes the movable rack 1304 to drive the extension plate 12 to extend horizontally outward along the track plate 14 until the winding component is directly above the lifting point. At this time, the winding motors below each extension plate 12 are activated, which drive the winding wheel to release the sling. After the transformer lifting lug is connected manually or by auxiliary equipment, the winding motor reverses to wind the sling, smoothly lifting the transformer 2 off the ground. Finally, the moving component is driven again to transfer the lifted transformer 2 to the target position. After unloading, the driving components reverse their actions, so that the lifting device returns to its initial compact state. The entire process achieved semi-automated operation from alignment, expansion, hoisting to transfer, significantly improving transfer efficiency and operational safety.

[0033] Example 2 Based on Example 1, the similarities between this example and Example 1 will not be repeated here. The expansion of the extension plate 12 and the winding and unwinding of the rope adopt separate structures. There is no connection between the expansion and the lifting of the transformer 2, which increases the cost.

[0034] Based on the above problems, in this embodiment, as follows: Figures 7-10 As shown, the transfer mechanism also includes a transmission component 3 and a suspension component. The lower end of the extension plate 12 is fixed with a limiting vertical cylinder 5 extending in the vertical direction. The transmission component 3 is set inside the limiting vertical cylinder 5. The extension component is connected to the transmission component 3 in a transmission manner. The upper end of the transmission component 3 is connected to the suspension component in a transmission manner. The suspension component is connected to the transformer 2 so that when the extension plate 12 is extended, it can drive the suspension component to extend synchronously, and the suspension component can suspend the transformer 2.

[0035] Specifically, the transmission assembly 3 includes a transmission rack 301, a transmission gear 302, a second bevel gear set 303, and a rotating shaft 304. The second auxiliary bevel gear is fixedly connected to the short shaft, and the second main bevel gear and the second auxiliary bevel gear mesh with each other. The transmission rack 301 is fixed on the upper surface of the track plate 14. The interior of the extension plate 12 is provided with a cavity, and the rotating shaft 304 rotates in the vertical direction within the cavity. The rotating shaft 304 is connected to the short shaft via the second bevel gear set 303. In this embodiment, the second bevel gear set 303 includes a second main bevel gear and a second auxiliary bevel gear. The second main bevel gear is fixedly connected to the rotating shaft 304, so it can drive the short shaft to rotate. The transmission gear 302 is fixed on the short shaft and is connected to the transmission rack 301, so that when the extension plate 12 moves, it can drive the transmission gear 302 to rotate via the transmission rack 301. When the transmission gear 302 rotates, it can drive the rotating shaft 304 to rotate, thereby enabling the rotating shaft 304 to drive the suspension assembly to operate.

[0036] The suspension assembly includes a first sprocket set 15, a third bevel gear set 16, a second sprocket set 17, and a main winding wheel 18. A mounting plate 20 is fixed to the inner wall of the limiting vertical cylinder 5. A fixed post 21 rotates on the mounting plate 20. The rotating shaft 304 and the fixed post 21 are connected via the first sprocket set 15. In this embodiment, the first sprocket set 15 includes a first main sprocket, a first auxiliary sprocket, and a first chain. The first main sprocket is fixed to the rotating shaft 304, the first auxiliary sprocket is fixed to the fixed post 21, and the first chain is wound around the first main sprocket and the first auxiliary sprocket. When the rotating shaft 304 rotates, it can drive the fixed post 21 to rotate. The third bevel gear set 16 is fixed to the fixed post 21 and is connected to the second sprocket set 17. In this embodiment, the third bevel gear set 16 is connected to the second sprocket set 17. The gear set 16 includes a third main bevel gear and a third auxiliary bevel gear. The third main bevel gear is fixed on the fixed column 21, and the third auxiliary bevel gear is coaxially and fixedly connected to the second sprocket set 17. The third main bevel gear and the third auxiliary bevel gear mesh with each other. When the fixed column 21 rotates, it can drive the second sprocket set 17 to rotate. The second sprocket set 17 is driven by a horizontal shaft, and the main winding wheel 18 is fixed on the horizontal shaft. In this embodiment, the second sprocket set 17 includes a second main sprocket, a second auxiliary sprocket, and a second chain. The second main sprocket is coaxially and fixedly connected to the third auxiliary bevel gear, and the second auxiliary sprocket is fixedly connected to the horizontal shaft. The second chain is wound around the second main sprocket and the second auxiliary sprocket, causing the horizontal shaft to rotate. The rotation of the horizontal shaft can drive the main winding wheel 18 to rotate, thereby winding and unwinding the first rope suspending the transformer 2.

[0037] Compared to Embodiment 1, in this embodiment, the extension plate 12 can drive the rotating shaft 304 to rotate during the reciprocating movement. The rotation of the rotating shaft 304 can drive the main winding wheel 18 to rotate, realizing the rope winding and unwinding, and completing the vertical hoisting. Only one motor is needed to complete the entire process from alignment to stable hoisting, which greatly simplifies the operation steps and improves the transfer efficiency.

[0038] Example 3 Based on Embodiments 1 and 2, the same structure as Embodiments 1 and 2 will not be described again. When the transformer 2 is suspended, it is not stable enough to rely solely on the upper end for suspension. As a result, the transformer 2 will still sway during the suspension process, which increases the risk of the transformer 2 falling.

[0039] Based on the above problems, in this embodiment, as follows: Figure 1 and Figures 3-14 As shown, the transfer mechanism also includes a clamping assembly. The lower end of the transmission assembly 3 is connected to the clamping assembly for transmission. The clamping assembly abuts against the lower outer side of the transformer 2, so that when the expansion assembly is expanding, it can also drive the clamping assembly to clamp the transformer 2, so as to avoid swaying and shaking of the transformer 2 during hoisting and transfer.

[0040] Specifically, the suspension assembly also includes a lifting winding wheel 19, which is installed at the lower end of the mounting plate 20. The lifting winding wheel 19 is connected to the horizontal shaft via an auxiliary sprocket set 22. The lifting winding wheel 19 is fixedly connected to the clamping assembly via a second rope, so that when the horizontal shaft rotates, the clamping assembly can also be moved up and down via the lifting winding wheel 19.

[0041] The auxiliary sprocket assembly 22 includes an auxiliary main sprocket 2201 and an auxiliary secondary sprocket 2202. The auxiliary main sprocket 2201 is fixedly connected to the crossbar, and the auxiliary secondary sprocket 2202 is drivenly connected to the lifting winding wheel 19. An auxiliary chain is wound on the auxiliary main sprocket 2201 and the auxiliary secondary sprocket 2202. When the horizontal shaft rotates, it can drive the lifting winding wheel 19 to rotate, thereby driving the clamping assembly to move up and down. The height of the clamping assembly can be automatically and synchronously adjusted with the lifting and lowering of the suspension assembly (through the lifting winding wheel 19 and the second rope). This means that no matter what the height of the transformer 2 is off the ground, the clamping assembly can always automatically align with its bottom edge position, achieving self-adaptive alignment, reducing the requirements for the operator's experience, and also reducing the risk of collision to the transformer 2's casing. If clamping is added before the transformer 2 is hoisted and transported, the gap between the transformer 2 and the ground is small, and forced insertion will cause squeezing damage to the transformer 2. Clamping can only be done after the transformer 2 is off the ground.

[0042] like Figure 13 and Figure 14As shown, the clamping assembly includes a lifting frame 23 and a clamping member 24 mounted on the lifting frame 23; the second rope of the lifting winding wheel 19 is fixedly connected to the top of the lifting frame 23, the clamping member 24 is slidably connected to the rotating shaft 304, the lifting frame 23 is guided and inserted into the limiting vertical cylinder 5, the limiting vertical cylinder 5 is provided with a limiting groove 25 for the lifting frame 23 to move up and down, and the rotating shaft 304 passes through the lifting frame 23, so that when the lifting frame 23 moves up and down, it can drive the clamping member 24 to move up and down synchronously, so that the height of the clamping member 24 and the transformer 2 are always consistent, which facilitates the clamping member 24 to clamp the transformer 2.

[0043] Specifically, the lifting frame 23 includes four square inserts 2301 and four L-shaped inserts 2302; the square inserts 2301 are guided and inserted into the limiting vertical tube 5, and each L-shaped insert 2302 is inserted into two adjacent square inserts 2301, so that when the expansion plate 12 expands and retracts, the lifting frame 23 expands and retracts synchronously with the expansion plate 12, avoiding the situation where the lifting frame 23 gets stuck when the expansion plate 12 expands and retracts. The clamping component 24 is installed on the top of the square inserts 2301.

[0044] The clamping component 24 includes a third sprocket set 2401, a fourth bevel gear set 2402, a lead screw 2403, and a clamping plate 2404. A fixed pin is rotatably mounted on the upper surface of the square insert 2301. The rotating shaft 304 and the fixed pin are connected via the third sprocket set 2401. The fourth bevel gear set 2402 is connected to the fixed pin. In this embodiment, the third sprocket set 2401 includes a third main sprocket, a third auxiliary sprocket, and a third chain. The spline of the third main sprocket is sleeved on the rotating shaft 304. The third main sprocket and the rotating shaft 304... The structure and principle of the spline connection are existing technologies and will not be described in detail here. The third secondary sprocket is fixed on the fixing pin, and the third chain is wound around the third main sprocket and the third secondary sprocket, so that the rotation of the rotating shaft 304 can drive the fixing pin to rotate. A support column is fixed on the square insert 2301, and the top of the support column is slidably connected to the bottom of the third main sprocket, so that when the third main sprocket rotates, it can be supported by the support column. When the square insert 2301 moves up and down, it can drive the third secondary sprocket through the support column. The three main sprockets move up and down synchronously. The bottom of the third main sprocket has a limiting annular groove for guiding the sliding of the support column. When the square insert 2301 moves up and down, it drives the third main sprocket to move up and down together. The rotation of the rotating shaft 304 also drives the fixed pin to rotate, which rotates on the square insert 2301. The lead screw 2403 is connected to the fourth bevel gear set 2402. In this embodiment, the fourth bevel gear set 2402 includes a fourth main bevel gear and a fourth auxiliary bevel gear. The fourth main bevel gear is fixed to the fixed pin, and the fourth auxiliary bevel gear... The wheel is fixed on the lead screw 2403. The fourth main bevel gear and the fourth auxiliary bevel gear mesh with each other, causing the fixing pin to rotate, which can drive the lead screw 2403 to rotate. The clamping plate 2404 is threaded on the lead screw 2403. The square insert 2301 is provided with a sliding groove for guiding the sliding of the clamping plate 2404, so that the rotating shaft 304 can rotate, which can drive the lead screw 2403 to rotate. The rotation of the lead screw 2403 can cause the clamping plate 2404 to move along the extension direction of the sliding groove. The clamping plate 2404 abuts against the bottom edge of the transformer 2.

[0045] In this embodiment, the clamping plate 2404 is an L-shaped plate that can be fitted to the bottom edge of the transformer 2. The clamping surface of the clamping plate 2404 is provided with an elastic wear-resistant pad (such as polyurethane). The pad of the clamping plate 2404 is embedded with a pressure sensor, which protects the transformer paint surface and realizes pressure monitoring.

[0046] The pressure sensor is connected to the first motor 4 via the controller. When the clamping force reaches the preset safety value, the control system can automatically stop the first motor 4 from moving further to prevent damage to the transformer 2 casing due to excessive clamping. This adds an intelligent protection layer to the hoisting process and improves the reliability of the operation.

[0047] Compared to Embodiments 1 and 2, this embodiment achieves the linkage of three core actions—"expanding the width of the lifting device," "lifting the main body of the transformer 2," and "stabilizing the bottom outer edge"—by setting a first motor 4 and an integrated extension, transmission, suspension, and clamping assembly. The suspension assembly is responsible for bearing the main weight of the transformer 2, while the clamping assembly horizontally clamps the transformer 2 from the outer edge of the bottom, forming a rigid constraint on the transformer 2 in both vertical and horizontal directions. This effectively suppresses the swaying, shaking, or rotation of the transformer 2 due to inertia during the lifting process, significantly improving the stability and safety of the lifting process.

[0048] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. The basic concept of the present invention lies in the linkage of "expanding the width of the lifting device", "lifting the main body of the transformer 2" and "stabilizing the bottom outer side clamp", which effectively solves the problems of cumbersome operation, poor stability and easy shaking in traditional lifting methods when the transformer 2 is suspended and transported. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A synchronous stabilizing hoisting device for transformers, characterized in that, It includes a movable component, a movable plate (1) mounted on the movable component, and a transfer mechanism mounted below the movable plate (1), wherein the transfer mechanism is equipped with a transformer (2). The transfer mechanism includes an extension component, a transmission component (3), a suspension component, and a clamping component. A first motor (4) is fixed on the moving plate (1). The output shaft of the first motor (4) is connected to the extension component. A limiting vertical cylinder (5) extending in the vertical direction is fixed below the extension component. The transmission component (3) is set inside the limiting vertical cylinder (5). The extension component is connected to the transmission component (3). The upper end of the transmission component (3) is connected to the suspension component. The suspension component is adapted to be hooked onto the standard lifting lug on the transformer (2). The lower end of the transmission component (3) is connected to the clamping component. The clamping component abuts against the lower outer side of the transformer (2).

2. The synchronous stabilizing and hoisting device for transformers according to claim 1, characterized in that, The extension assembly includes a main bevel gear (6), a secondary bevel gear (7), a connecting rod (8), a first bevel gear set (9), and a telescopic component (13). The bottom of the movable plate (1) is fixed with a fixed frame (10), and the first bevel gear set (9) and the telescopic component (13) are both set inside the fixed frame (10). The output shaft of the first motor (4) is fixedly connected to the main bevel gear (6) via a vertical rod (11). The end of the connecting rod (8) near the main bevel gear (6) is fixedly connected to the sub-bevel gear (7). The connecting rod (8) rotates on the fixed frame (10). The main bevel gear (6) meshes with the sub-bevel gear (7). The end of the connecting rod (8) away from the main bevel gear (6) is connected to the first bevel gear set (9) for transmission. The first bevel gear set (9) is connected to the telescopic member (13) in a transmission connection, and an extension plate (12) is installed on the telescopic member (13).

3. The synchronous stabilizing and hoisting device for transformers according to claim 2, characterized in that, The telescopic component (13) includes a short connecting rod (1301), a long connecting rod (1302), a fixed rack (1303), a movable rack (1304), and a gear set (1305). The short connecting rod (1301) is connected to the first bevel gear set (9) for transmission. The short connecting rod (1301) and the long connecting rod (1302) are hinged together. The long connecting rod (1302) is hinged together with the gear set (1305). The fixed rack (1303) is fixed inside the fixed frame (10). The movable rack (1304) is guided to slide inside the fixed frame (10). The gear set (1305) meshes between the fixed rack (1303) and the movable rack (1304). The end of the movable rack (1304) away from the short connecting rod (1301) is fixedly connected to the extension plate (12), and the bottom of the movable plate (1) is fixed with a track plate (14) for guiding the sliding of the extension plate (12), and the limiting vertical cylinder (5) is fixed at the bottom of the extension plate (12). The fixed frame (10) has a cavity inside for the telescopic component (13) to run.

4. A synchronous stabilizing and hoisting device for transformers according to any one of claims 1-3, characterized in that, The transmission assembly (3) includes a transmission rack (301), a transmission gear (302), a second bevel gear set (303), and a rotating shaft (304). The transmission rack (301) is fixed on the upper surface of the track plate (14). The interior of the extension plate (12) is provided with a cavity. The rotating shaft (304) rotates in the cavity in the up and down direction. The rotating shaft (304) is connected to a short shaft through the second bevel gear set (303). The transmission gear (302) is fixed on the short shaft. The transmission gear (302) is connected to the transmission rack (301).

5. A synchronous stabilizing and hoisting device for transformers according to claim 4, characterized in that, The suspension assembly includes a first sprocket set (15), a third bevel gear set (16), a second sprocket set (17), a main winding wheel (18), and a lifting winding wheel (19). The inner wall of the limiting vertical cylinder (5) is fixed with an installation plate (20), and a fixed column (21) is rotatably mounted on the installation plate (20). The rotating shaft (304) and the fixed column (21) are connected by a first sprocket group (15). The third bevel gear group (16) is fixed on the fixed column (21). The third bevel gear group (16) is connected by a second sprocket group (17). The second sprocket group (17) is driven by a horizontal shaft. The main winding wheel (18) is fixed on the horizontal shaft. The main winding wheel (18) is fixedly connected to the lifting lug of the transformer (2) by a first rope. The lifting and winding wheel (19) is installed at the lower end of the mounting plate (20). The lifting and winding wheel (19) is connected to the horizontal shaft drive through the auxiliary sprocket group (22). The lifting and winding wheel (19) is fixedly connected to the clamping assembly through the second rope.

6. A synchronous stabilizing and hoisting device for transformers according to claim 5, characterized in that, The auxiliary sprocket assembly (22) includes an auxiliary main sprocket (2201) and an auxiliary secondary sprocket (2202). The auxiliary main sprocket (2201) is fixedly connected to the crossbar, and the auxiliary secondary sprocket (2202) is drivenly connected to the lifting winding wheel (19).

7. A synchronous stabilizing and hoisting device for transformers according to claim 6, characterized in that, The clamping assembly includes a lifting frame (23) and a clamping member (24) mounted on the lifting frame (23). The second rope of the lifting winding wheel (19) is fixedly connected to the top of the lifting frame (23). The clamping member (24) is slidably connected to the rotating shaft (304) via a spline. The lifting frame (23) is guided to slide within the limiting vertical cylinder (5). The limiting vertical cylinder (5) is provided with a limiting groove (25) for the lifting frame (23) to move up and down. The rotating shaft (304) passes through the lifting frame (23).

8. A synchronous stabilizing and hoisting device for transformers according to claim 7, characterized in that, The lifting frame (23) includes four square inserts (2301) and four L-shaped inserts (2302). The square insert (2301) is guided and inserted into the limiting vertical tube (5), and the L-shaped insert (2302) is fixed in the corresponding square insert (2301); The clamping member (24) is installed on top of the square insert (2301).

9. A synchronous stabilizing and hoisting device for transformers according to claim 8, characterized in that, The clamping component (24) includes a third sprocket set (2401), a fourth bevel gear set (2402), a lead screw (2403), and a clamping plate (2404). The upper surface of the square insert (2301) is rotatably fixed with a pin. The rotating shaft (304) and the fixed pin are connected by a third sprocket set (2401). The fourth bevel gear set (2402) is connected to the fixed pin. The lead screw (2403) rotates on the square insert (2301). The lead screw (2403) is connected to the fourth bevel gear set (2402). The clamping top plate (2404) is threadedly connected to the lead screw (2403), and the square insert (2301) is provided with a sliding groove for guiding the clamping top plate (2404) to slide. A pressure sensor is installed on the top plate (2404), and the pressure sensor is connected to the first motor (4) via a controller.

10. A synchronous stabilizing and hoisting device for a transformer according to any one of claims 5-9, characterized in that, The moving component includes a gantry (26) and a position adjustment component (27); The bottom of the gantry (26) is equipped with a moving wheel (28) that rolls on the ground. The position adjustment component (27) is installed on the gantry (26) and the moving plate (1) is installed on the position adjustment component (27).

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