Wind power generation transformer

Abstract

The invention relates to the field of wind power generation, in particular to a wind power generation transformer which comprises a body which comprises a shell and an end cover. A vertical plate is fixedly connected to the position, close to the side edge, of the side wall of the shell, a rotating hole is formed in the middle of the vertical plate, two kidney-shaped limiting holes are formed in the vertical plate, and the two limiting holes are symmetrically formed in the upper portion and the lower portion of the rotating hole. According to the invention, on the basis of the existing wind power generation transformer, a structure capable of jacking the end cover and the three-phase winding coil is designed, and the end cover and the three-phase winding coil can be jacked only by slightly processing the existing wind power generation transformer, namely welding the vertical plate or fixing the vertical plate on the side wall of the shell through a bolt, and welding the base block capable of being spherically hinged with the ejector rod at the corner position of the end cover; the wind power generation transformer can be flexibly installed without additionally designing a wind power generation transformer structure, design cost and material consumption are saved, meanwhile, the ejector rod is matched with the threaded cylinder to jack the end cover and the three-phase winding coil, the structure is simple, operation is convenient, and the maintenance efficiency and safety can be improved for high-altitude operation.

Description

Technical Field

[0001] The present invention relates to the field of wind power generation, in particular to a wind power generation transformer. Background Art

[0002] Wind turbine transformers are crucial electrical equipment in wind power systems, used to boost the low voltage output of wind turbines to a high voltage suitable for long-distance transmission, thereby reducing transmission losses. Currently, wind power generation generally falls into two categories: onshore and offshore. Whether the wind turbine transformer is installed in the nacelle atop the tower depends on the wind turbine's installation environment. For large-capacity wind turbines, the wind turbine transformer is typically installed in the nacelle atop the tower. This installation method shortens the distance between the wind turbine and the transformer, reduces the use of low-voltage cables, and thus reduces costs. For offshore wind power, due to the special offshore environment, characterized by high humidity and salt density, the transformer is also installed in the nacelle atop the tower. This design not only saves space but also avoids the difficulty of protecting the transformer when it is installed at a lower location.

[0003] The nacelle on top of the wind turbine transformer tower, specifically installed at the tail of the nacelle, requires regular maintenance after long-term operation. Sometimes, the end cover of the wind turbine transformer needs to be opened for internal maintenance. The nacelle end cover is lifted and opened. If the operation is performed on the ground, the end cover is generally lifted and raised using a gantry crane in conjunction with an electric hoist. However, the internal conditions of the nacelle are different from those on the ground. When designing the nacelle, the nacelle base must be made of high-strength materials, such as ductile iron or steel plate weldments, and must meet strength, stiffness, and fatigue life requirements. The nacelle top is generally made of relatively low-strength materials that only provide wind and rain protection while reducing costs. If an electric hoist is used as a lifting device, the nacelle top cannot withstand the weight of the end cover and the three-phase winding coils connected to the lower surface of the end cover. If a support frame is erected at the bottom of the nacelle and an electric hoist is installed on the support frame, it will take up a lot of space. At the same time, the maintenance personnel themselves will also occupy part of the space inside the nacelle, making operation very inconvenient.

[0004] Therefore, a wind power transformer is proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a wind power transformer according to the present invention includes a body, which includes a shell and an end cover; a vertical plate is fixedly connected to the side wall of the shell near the side ribs thereof, a rotation hole is provided in the middle of the vertical plate, and two waist-shaped limiting holes are provided on the vertical plate, and the two limiting holes are symmetrically arranged above and below the rotation hole;

[0007] A threaded cylinder is provided on the vertical plate, and a rotating pin is provided in the middle of the outer wall of the threaded cylinder. The rotating pin is rotatably connected to the rotating hole. Two limit pins are provided on the outer wall of the threaded cylinder. The two limit pins are symmetrically arranged above and below the rotating pin, and a sliding hole is provided at the end of each limit pin. An arc rod is slidably connected in the sliding hole. The end of the arc rod is fixed in the limiting hole, and a reset spring is sleeved on the arc rod.

[0008] The threaded barrel is internally threaded with a push rod, the upper end of which is spherically hinged at the corner of the lower surface of the end cover, and the outer ring of the push rod is also fixed with a hexagonal prism, which is arranged close to the upper end of the push rod.

[0009] Preferably, a plurality of fixing holes are provided on the side wall of the end cover edge; a plurality of fixing holes are also provided on the outer side wall of the upper port of the housing;

[0010] There are multiple support plates between the end cover and the outer shell. Fixing pins that fit into the fixing holes are provided at the corners of the support plates. The upper and lower ends of the support plates are respectively attached to the edge side wall of the end cover and the outer side wall of the upper port of the outer shell. The fixing holes are respectively embedded in the fixing holes on the end cover and the fixing holes on the outer shell.

[0011] Preferably, two upper and lower anti-slip components are provided between the top rod and the support plate on the same side of the shell. The anti-slip components are used to stabilize the support plate, and the two anti-slip components include a cross bar, which is squeezed on the outer wall of the support plate. The two ends of the cross bar are symmetrically bent, and the two ends of the cross bar are connected to a U-shaped buckle plate through a torsion spring rotation, and the buckle plate is buckled on the top rod.

[0012] Preferably, a U-shaped clamping plate is fixedly connected to the lower end of the rotational connection shaft between the upper buckle plate and the crossbar, and the clamping plate half wraps around the outer surface of the hexagonal prism.

[0013] Preferably, a window is formed on the plate body of each support plate, and the shape of the window is an inverted isosceles trapezoid;

[0014] Multiple groups of extrusion plates are provided on the inner side wall of each crossbar. The two extrusion plates in each group are arranged in an inverted "eight" shape, and the inner side wall of the crossbar is squeezed on the support plate. The extrusion plates in each group are attached to the inclined side wall inside the window.

[0015] Preferably, an anti-slip groove is provided on the inclined side wall inside the window;

[0016] An anti-slip protrusion is provided on the surface of each support plate opposite to the inclined side wall in the window. The extrusion plate is attached to the inclined side wall in the window, and the anti-slip protrusion is embedded in the anti-slip groove.

[0017] Preferably, a strip-shaped hole is provided on each crossbar, the strip-shaped hole is provided along the length direction of the crossbar, and a plurality of sliders are slidably connected in the strip-shaped hole, and a group of extrusion plates are symmetrically fixed to each slider.

[0018] Preferably, a movable assembly is provided at the bottom of the housing, and the movable assembly is used to adjust the position of the body in the wind turbine cabin, and the movable assembly includes a bottom plate symmetrically fixed to the bottom of the housing, and a plurality of rotation grooves are provided on the lower surface of the bottom plate, and a ball is rotatably connected in the rotation groove;

[0019] Each base plate is slidably connected to a slide rail provided at the bottom of the cabin, and a screw rod is rotatably connected in the slide rail, and the screw rod thread passes through the interior of the base plate.

[0020] Preferably, a plurality of card slots are provided on both sides of the bottom plate; a plurality of fixing slots are provided on both sides of the inner side of the slide rail, and fixing plates are embedded between the fixing slots and the card slots.

[0021] Preferably, an oil filling hole is provided on the upper end surface of the end cover, and the oil filling hole is connected to the ball hinge connection between the push rod and the end cover.

[0022] The benefits of the invention are:

[0023] 1. In the present invention, based on the existing wind power transformer, a structure capable of lifting the end cover and the three-phase winding coil is designed. Only a slight processing is required on the existing wind power transformer, that is, the vertical plate is welded or fixed to the side wall of the shell by bolts, and a base block for ball-hinged ejector rod is welded at the corner position of the end cover, so that it can be flexibly installed without the need to additionally design the wind power transformer structure, saving design cost and material consumption. At the same time, the ejector rod cooperates with the threaded cylinder to lift the end cover and the three-phase winding coil. The structure is simple and the operation is convenient. It is targeted at high-altitude operations and helps to improve maintenance efficiency and safety.

[0024] 2. Insert the fixing pins on the support plate into the fixing holes on the end cover and the outer shell respectively. At this time, the end cover and the outer shell are supported by the support plate, which improves the safety during the maintenance process. At the same time, the support plate cooperates with the anti-slip component so that the upper and lower sides of the support plate can be tightly attached to the end cover and the outer shell respectively, ensuring that the fixing pins can be firmly embedded in the fixing holes, continuously and effectively supporting the end cover and the three-phase winding coil, further improving the stability of the three-phase winding coil and the end cover after jacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the main body of the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of the main body in the present invention in an open state;

[0027] Figure 3 This is a schematic side view of the body in the open state of the present invention;

[0028] Figure 4 This is a schematic diagram of the main body in the open state of the present invention;

[0029] Figure 5Schematic diagram of the bottom structure of the body in the present invention;

[0030] Figure 6 A perspective view of a threaded barrel according to the present invention;

[0031] Figure 7 A perspective view of a vertical plate in the present invention;

[0032] Figure 8 Schematic diagram of the cooperation between the threaded cylinder and the vertical plate in the present invention;

[0033] Figure 9 A perspective view of the anti-slip assembly of the present invention;

[0034] Figure 10 A three-dimensional diagram of the cooperation between the support plate and the crossbar in the present invention;

[0035] Figure 11 A three-dimensional diagram of the support plate of the present invention;

[0036] Figure 12 This is a three-dimensional diagram of the matching of the gusset plate and the clamping plate in the present invention;

[0037] Figure 13 A three-dimensional diagram of the cooperation between the slider and the crossbar in the present invention;

[0038] Figure 14 Schematic diagram of the cooperation between the slider and the crossbar in the present invention.

[0039] In the figure: 1. Main body; 2. Shell; 3. End cover; 4. Vertical plate; 5. Rotary hole; 6. Limiting hole; 7. Threaded cylinder; 8. Rotary pin; 9. Limiting pin; 10. Oil filling hole; 11. Arc rod; 12. Return spring; 13. Push rod; 14. Hexagonal prism; 15. Fixing hole; 16. Support plate; 17. Fixing pin; 18. Cross bar; 19. Buckle plate; 20. Card plate; 21. Window; 22. Extrusion plate; 23. Anti-slip groove; 24. Anti-slip protrusion; 25. Strip hole; 26. Slider; 27. Bottom plate; 28. Sphere; 29. ​​Slide rail; 30. Screw; 31. Card slot; 32. Fixing slot; 33. Fixing piece. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0041] Reference Figure 1 - Figure 8A wind power transformer includes a body 1, which includes a shell 2 and an end cover 3; a vertical plate 4 is fixedly connected to the side wall of the shell 2 near its side rib position, a rotation hole 5 is opened in the middle of the vertical plate 4, and two waist-shaped limiting holes 6 are opened on the vertical plate 4, and the two limiting holes 6 are symmetrically arranged above and below the rotation hole 5; a threaded cylinder 7 is provided on the vertical plate 4, and a rotating pin 8 is provided in the middle of the outer wall of the threaded cylinder 7. The rotating pin 8 is rotatably connected to the rotating hole 5, and two limiting pins 9 are provided on the outer wall of the threaded cylinder 7. The two limiting pins 9 are symmetrically arranged above and below the rotating pin 8, and the end of each limiting pin 9 is opened. The sliding hole is provided with a sliding connection of an arc rod 11, the end of the arc rod 11 is fixed in the limiting hole 6, and a return spring 12 is sleeved on the arc rod 11; the threaded tube 7 is internally threaded with a push rod 13, the upper end of the push rod 13 is ball-hinged at the corner position of the lower surface of the end cover 3, and a hexagonal prism 14 is also fixed on the outer ring of the push rod 13, and the hexagonal prism 14 is arranged close to the upper end position of the push rod 13; in this embodiment, an optimized design is performed on the existing wind power transformer, and a structure that can lift the end cover 3 and the three-phase winding coil is provided on the wind power transformer, and there is no need to set up an electric After entering the cabin, the maintenance personnel use a wrench to buckle on the hexagonal prism 14 and rotate the top rod 13. The top rod 13 is threadedly connected to the threaded barrel 7. Therefore, when the top rod 13 is rotated, the top rod 13 will move up along the axis of the threaded barrel 7 and gradually move up the top cover 3, and open the end cover 3, so that the inside of the shell 2 can be repaired. Taking into account the limited space inside the cabin and in accordance with relevant safety regulations and wind power industry standards, maintenance work inside the wind turbine cabin usually requires at least two maintenance personnel to enter at the same time and operate and repair in coordination. At this time, the two people each perform maintenance according to their own On one side of the body 1, two people use a wrench to rotate the push rod 13, but it is difficult for the two people to operate synchronously. For this reason, the upper end of the push rod 13 is ball-hinged on the end cover 3, and the lower end of the push rod 13 is deflected and connected to the vertical plate 4 through the threaded tube 7. At this time, even if the push rods 13 on one side of the two people rotate upward inconsistently, the top cover 3 can be smoothly put on through the deflection between the push rod 13 and the end cover 3, and the deflection and displacement between the threaded tube 7 and the vertical plate 4. When the end cover 3 is about to be put on, a slight adjustment is made to one or more push rods 13 so that the upper surface of the end cover 3 tends to be horizontal;

[0042] The specific details of the deflection and displacement between the threaded barrel 7 and the vertical plate 4 are as follows: the rotating pin 8 deflects in the rotating hole 5, and at the same time, the limiting pin 9 moves in the limiting hole 6 of the desired shape, and the limiting pin 9 squeezes the return spring 12. When the upper surface of the end cover 3 tends to be horizontal, the reaction force of the two adjacent return springs 12 squeezes the limiting pin 9, so that the limiting pin 9 is stabilized in the middle position of the limiting hole 6, reducing the swing of the push rod 13 and the swing amplitude of the end cover 3;

[0043] In this embodiment, based on the existing wind power transformer, a structure capable of lifting the end cover 3 and the three-phase winding coil is designed. Only a slight processing is required on the existing wind power transformer, that is, the vertical plate 4 is welded or fixed to the side wall of the shell 2 by bolts, and a base block for the ball-hinged top rod 13 is welded at the corner position of the end cover 3, so that it can be flexibly installed without the need to additionally design the wind power transformer structure, saving design cost and material consumption. At the same time, the top rod 13 cooperates with the threaded cylinder 7 to lift the end cover 3 and the three-phase winding coil. The structure is simple and the operation is convenient. It is targeted at high-altitude operations and helps to improve maintenance efficiency and safety.

[0044] Reference Figure 1 - Figure 8 , a plurality of fixing holes 15 are provided on the edge side wall of the end cover 3; a plurality of fixing holes 15 are also provided on the outer side wall of the upper port of the housing 2;

[0045] A plurality of support plates 16 are provided between the end cover 3 and the housing 2. Fixing pins 17 adapted to the fixing holes 15 are provided at the corners of the support plates 16. The upper and lower ends of the support plates 16 are respectively attached to the edge side wall of the end cover 3 and the outer wall of the upper port of the housing 2. The fixing holes 15 are respectively embedded in the fixing holes 15 on the end cover 3 and the fixing holes 15 on the housing 2;

[0046] Considering that the lower surface of the end cover 3 is connected to a heavy three-phase winding coil, the three-phase winding coil and the end cover 3 are heavy. When operating inside the housing 2, in order to improve safety and prevent the push rod 13 from bending and causing the three-phase winding coil and the end cover 3 to fall, a plurality of support plates 16 are provided between the end cover 3 and the housing 2. The support plates 16 are used to assist the push rod 13 to support the three-phase winding coil and the end cover 3 together, thereby improving safety.

[0047] When the end cover 3 is lifted and moved upward, the fixing pins 17 on the support plate 16 are respectively embedded in the fixing holes 15 on the end cover 3 and the housing 2. At this time, the end cover 3 and the housing 2 are supported by the support plate 16, which improves the safety during the maintenance process.

[0048] The support plate 16 is in a plate shape. After the maintenance is completed, the support plate 16 can be placed flat in the cabin, and the space occupied can be ignored.

[0049] Reference Figure 1 - Figure 12 , two upper and lower anti-slip components are provided between the top rod 13 and the support plate 16 on the same side of the housing 2. The anti-slip components are used to stabilize the support plate 16, and the two anti-slip components include a cross bar 18, the cross bar 18 is squeezed on the outer wall of the support plate 16, the two ends of the cross bar 18 are symmetrically bent, and the two ends of the cross bar 18 are rotatably connected to a U-shaped gusset plate 19 through a torsion spring, and the gusset plate 19 is buckled on the top rod 13;

[0050] After the support plate 16 is installed between the end cover 3 and the shell 2, the anti-slip assembly is installed, the cross bar 18 is attached to the outer wall of the support plate 16, and the buckle plate 19 is buckled on the outer circle of the top rod 13. At this time, the tendency of the support plate 16 to tilt toward both sides of the body 1 is constrained by the cross bar 18, so that the upper and lower sides of the support plate 16 can be tightly attached to the end cover 3 and the shell 2 respectively, ensuring that the fixing pin 17 can be firmly embedded in the fixing hole 15, continuously and effectively supporting the end cover 3 and the three-phase winding coil, further improving the stability of the three-phase winding coil and the end cover 3 after jacking.

[0051] Reference Figure 1 - Figure 12 The upper buckle plate 19 and the lower end of the crossbar 18 are fixedly connected to the shaft of the rotation connection with a U-shaped card plate 20, and the card plate 20 half wraps the outer surface of the hexagonal prism 14;

[0052] The gravity of the three-phase winding coil and the end cover 3 is squeezed on the top rod 13, and the cabin vibrates as a whole under the impact of external wind on the cabin. At the same time, the vibration is for the top rod 13. The gravity of the three-phase winding coil and the end cover 3 will prompt the top rod 13 to rotate by itself, and the top rod 13 rotates and moves downward, causing huge pressure on the support plate 16. For this reason, a card plate 20 that can restrain the top rod 13 from rotating by itself is provided under the buckle plate 19. The buckle plate 19 is placed above the hexagonal prism 14, and the card plate 20 wraps the hexagonal prism 14 to restrain the rotation of the hexagonal prism 14, which naturally restrains the self-rotation of the top rod 13, so that the top rod 13 can always be in the state of serving as the main upper top cover 3 and the three-phase winding coil, further improving the safety of maintenance.

[0053] Reference Figure 1 - Figure 12 , each support plate 16 has a window 21 formed on its plate body, and the window 21 is in the shape of an inverted isosceles trapezoid;

[0054] Multiple groups of extrusion plates 22 are provided on the inner side wall of each crossbar 18. The two extrusion plates 22 in each group are arranged in an inverted "eight" shape. The inner side wall of the crossbar 18 is pressed against the support plate 16. The extrusion plates 22 in each group are attached to the inner inclined side wall of the window 21.

[0055] For the cross bar 18 below, its two ends are buckled on the top bar 13 through the buckle plates 19, and the cross bar 18 has no support. The cross bar 18 is likely to slide down on its own, causing the cross bar 18 to detach from the support plate 16 and unable to restrain the support plate 16. For this reason, an extrusion plate 22 is provided on the cross bar 18, and two adjacent extrusion plates 22 are squeezed on the side walls of the window 21. The inner side walls of the window 21 will generate an oblique upward extrusion force on the extrusion plate 22, which restrains the downward trend of the cross bar 18, so that the cross bar 18 can always be effectively squeezed on the support plate 16, ensuring the stability between the lower side of the support plate 16 and the shell 2.

[0056] Reference Figure 1 - Figure 12 , an anti-slip groove 23 is provided on the inclined side wall of the window 21;

[0057] Each support plate 16 has an anti-slip protrusion 24 on its surface opposite to the inner inclined side wall of the window 21. The extrusion plate 22 is attached to the inner inclined side wall of the window 21, and the anti-slip protrusion 24 is embedded in the anti-slip groove 23.

[0058] After the extrusion plate 22 is embedded in the window 21, the anti-slip protrusion 24 on the extrusion plate 22 will be embedded in the anti-slip groove 23, further improving the firmness between the extrusion plate 22 and the inner wall of the window 21, while also limiting the movable direction of the cross bar 18. The cross bar 18 cannot move toward the sides of the main body 1, nor can it move downward. The cross bar 18 can only move upward and detach from the support plate 16.

[0059] Reference Figure 1 - Figure 14 Each crossbar 18 is provided with a strip hole 25, which is provided along the length direction of the crossbar 18, and a plurality of sliders 26 are slidably connected in the strip hole 25, and a group of extrusion plates 22 are symmetrically fixed to each slider 26;

[0060] When repairing the main body 1, considering that the support plate 16 may cover the maintenance operation area, the position of the support plate 16 can be adjusted. After the position of the support plate 16 is adjusted, the slider 26 is pushed to move along the strip hole 25 to adjust the position of the extrusion plate 22 so that the two adjacent extrusion plates 22 can be opposite to the window 21 of the support plate 16, that is, the extrusion plate 22 can be flexibly embedded in the inner wall of the window 21 to effectively support the support plate 16.

[0061] Reference Figure 1 - Figure 5 A movable assembly is provided at the bottom of the housing 2, and the movable assembly is used to adjust the position of the body 1 in the wind turbine cabin. The movable assembly includes a bottom plate 27 symmetrically fixed to the bottom of the housing 2, and a plurality of rotation grooves are provided on the lower surface of the bottom plate 27, and a ball 28 is rotatably connected in the rotation groove;

[0062] Each base plate 27 is slidably connected to a slide rail 29 provided at the bottom of the cabin, and a screw rod 30 is rotatably connected to the slide rail 29, and the screw rod 30 is threadedly passed through the interior of the base plate 27;

[0063] When repairing the main body 1, the operating space in a certain direction of the main body 1 is limited. At this time, the position of the main body 1 inside the cabin can be adjusted by moving the components to free up maintenance operation space, and the screw rod 30 is rotated. The screw rod 30 will pull or push the base plate 27 to move along the slide rail 29, and the bottom of the base plate 27 is slidably connected to the slide rail 29 set at the bottom of the cabin through multiple balls 28, making the rotation of the screw rod 30 and the position adjustment of the main body 1 easier and more convenient.

[0064] Reference Figure 1 - Figure 5 , a plurality of card slots 31 are provided on both sides of the bottom plate 27; a plurality of fixing slots 32 are provided on both sides of the slide rail 29, and a fixing piece 33 is embedded between the fixing slot 32 and the card slot 31;

[0065] The cabin is at a high altitude, and the wind keeps hitting the cabin, causing the cabin to vibrate continuously. This vibration has an adverse effect on the stability of the main body 1 in the cabin, and will cause the main body 1 to move on its own. For this reason, it is necessary to stabilize the main body 1. In this embodiment, a fixing plate 33 is designed. The fixing plate 33 is embedded between the relative fixing groove 32 and the card groove 31, so that the relative movement between the bottom plate 27 and the slide rail 29 can be constrained, thereby stabilizing the main body 1. In addition, this stabilization method has a simple structure and is easy to operate.

[0066] Reference Figure 1 , an oil filling hole 10 is provided on the upper end surface of the end cover 3, and the oil filling hole 10 is connected to the ball hinge connection between the ejector rod 13 and the end cover 3;

[0067] Before rotating the push rod 13, first inject lubricating oil into the oil filling hole 10, and the lubricating oil flows into the ball hinge connection between the push rod 13 and the end cover 3, and then rotate the push rod 13. At this time, the push rod 13 can be rotated more easily, and the wear of the ball hinge connection can be reduced, thereby extending the service life.

[0068] Working principle:

[0069] After entering the cabin, the maintenance personnel first inject lubricating oil into the oil filling hole 10, and the lubricating oil flows into the ball hinge connection between the push rod 13 and the end cover 3. Then, the push rod 13 is rotated, and a wrench is buckled on the hexagonal prism 14, and the push rod 13 is rotated. The push rod 13 gradually moves up the top cover 3 and opens the end cover 3. When the end cover 3 is about to be pushed up, a slight adjustment is made to one or more push rods 13 so that the upper surface of the end cover 3 tends to be horizontal. Then, the support plate 16 is installed, and the fixing pins 17 on the support plate 16 are respectively embedded in the fixing holes 15 on the end cover 3 and the outer shell 2. At this time, the end cover 3 and the shell 2 are supported by the support plate 16, and then the anti-slip assembly is installed. The cross bar 18 is attached to the outer wall of the support plate 16, and the buckle plate 19 is buckled on the outer circle of the top rod 13. At this time, the tendency of the support plate 16 to tilt toward both sides of the body 1 is constrained by the cross bar 18, so that the upper and lower sides of the support plate 16 can be tightly attached to the end cover 3 and the shell 2 respectively, ensuring that the fixing pin 17 can be firmly embedded in the fixing hole 15, continuously and effectively supporting the end cover 3 and the three-phase winding coil, further improving the stability of the three-phase winding coil and the end cover 3 after jacking.

[0070] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind power transformer, comprising a body, the body comprising a housing and an end cover; characterized in that: A vertical plate is fixedly connected to the side wall of the shell near its side ribs, a rotation hole is provided in the middle of the vertical plate, and two waist-shaped limiting holes are provided on the vertical plate, and the two limiting holes are symmetrically arranged above and below the rotation hole; A threaded cylinder is provided on the vertical plate, and a rotating pin is provided in the middle of the outer wall of the threaded cylinder. The rotating pin is rotatably connected to the rotating hole. Two limit pins are provided on the outer wall of the threaded cylinder. The two limit pins are symmetrically arranged above and below the rotating pin, and a sliding hole is provided at the end of each limit pin. An arc rod is slidably connected in the sliding hole. The end of the arc rod is fixed in the limiting hole, and a reset spring is sleeved on the arc rod. The threaded barrel is internally threaded with a push rod, the upper end of which is spherically hinged at the corner of the lower surface of the end cover, and the outer ring of the push rod is also fixed with a hexagonal prism, which is arranged close to the upper end of the push rod.

2. A wind power transformer according to claim 1, characterized in that: A plurality of fixing holes are provided on the side wall of the end cover; a plurality of fixing holes are also provided on the outer side wall of the upper port of the shell; There are multiple support plates between the end cover and the outer shell. Fixing pins that fit into the fixing holes are provided at the corners of the support plates. The upper and lower ends of the support plates are respectively attached to the edge side wall of the end cover and the outer side wall of the upper port of the outer shell. The fixing holes are respectively embedded in the fixing holes on the end cover and the fixing holes on the outer shell.

3. A wind power transformer according to claim 2, characterized in that: Two upper and lower anti-slip components are provided between the top rod and the support plate on the same side of the shell. The anti-slip components are used to stabilize the support plate, and the two anti-slip components include a cross bar, which is squeezed on the outer wall of the support plate. The two ends of the cross bar are symmetrically bent, and the two ends of the cross bar are connected to a U-shaped buckle plate through a torsion spring, and the buckle plate is buckled on the top rod.

4. A wind power transformer according to claim 3, characterized in that: A U-shaped clamping plate is fixedly connected to the lower end of the rotation connection shaft between the upper buckle plate and the crossbar, and the clamping plate half wraps the outer surface of the hexagonal prism.

5. A wind power transformer according to claim 3, characterized in that: Each support plate has a window formed on its body, and the window is in the shape of an inverted isosceles trapezoid; Multiple groups of extrusion plates are provided on the inner side wall of each cross bar. The two extrusion plates in each group are arranged in an inverted "eight" shape, and the inner side wall of the cross bar is squeezed on the support plate. The extrusion plates in each group are attached to the inclined side wall inside the window.

6. A wind power transformer according to claim 5, characterized in that: Anti-slip grooves are provided on the inclined side walls inside the window; An anti-slip protrusion is provided on the surface of each support plate opposite to the inclined side wall in the window. The extrusion plate is attached to the inclined side wall in the window, and the anti-slip protrusion is embedded in the anti-slip groove.

7. The wind power transformer according to claim 5, characterized in that: A strip hole is provided on each cross bar, and the strip hole is provided along the length direction of the cross bar. A plurality of sliders are slidably connected in the strip hole, and a group of extrusion plates are symmetrically fixed on each slider.

8. The wind power transformer according to claim 2, characterized in that: A moving assembly is provided at the bottom of the shell, and the moving assembly is used to adjust the position of the body in the cabin. The moving assembly includes a bottom plate symmetrically fixed to the bottom of the shell, and a plurality of rotation grooves are provided on the lower surface of the bottom plate, and a ball is rotatably connected in the rotation groove; Each base plate is slidably connected to a slide rail provided at the bottom of the cabin, and a screw rod is rotatably connected in the slide rail, and the screw rod thread passes through the interior of the base plate.

9. A wind power transformer according to claim 8, characterized in that: A plurality of card slots are provided on both sides of the bottom plate; a plurality of fixing slots are provided on both sides of the slide rail, and fixing plates are embedded between the fixing slots and the card slots.

10. The wind power transformer according to claim 1, characterized in that: An oil filling hole is provided on the upper end surface of the end cover, and the oil filling hole is connected to the ejector rod and the ball hinge connection of the end cover.

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