A box-type transformer installation structure for wind power

Abstract

This invention belongs to the field of intelligent transformer installation technology, and specifically relates to an installation structure for a wind power box-type transformer. It includes a pre-embedded concrete foundation and a mounting plate located at the bottom of the box-type transformer. Multiple pre-embedded anchor bolts are pre-embedded in a rectangular arrangement at the top of the pre-embedded concrete foundation. The edge of the mounting plate is inserted into the shaft wall of the pre-embedded anchor bolts through multiple mounting holes. The shaft wall of the pre-embedded anchor bolts is provided with a first nut to fix the mounting plate. This invention provides reliable protection for the pre-embedded anchor bolts and the first nut, preventing corrosion of components by outdoor rainwater, moisture, salt spray, etc., and extending the service life of the components. Simultaneously, it enables real-time monitoring of the tightness of the first nut, providing accurate information for timely maintenance. Furthermore, it can automatically activate emergency protection when increased loosening is detected, effectively curbing the loosening trend and preventing safety accidents such as displacement, tilting, or even overturning of the box-type transformer.

Description

Technical Field

[0001] This invention belongs to the field of intelligent transformer installation technology, and in particular relates to a box-type transformer installation structure for wind power. Background Technology

[0002] In wind power generation systems, the box-type transformer serves as the core equipment for power conversion and transmission, and its installation stability directly determines the safe and efficient operation of wind power projects. Currently, the mainstream installation method for wind turbine box-type transformers is through-bolt connection. This method achieves rigid fixation between the box-type transformer and the pre-embedded anchor bolts on the pre-constructed concrete foundation by precisely aligning the mounting plate at the bottom of the transformer with the pre-embedded anchor bolts on the pre-constructed concrete foundation and tightening them with nuts, as exemplified by the box-type transformer installation structure disclosed in announcement number CN210896886U.

[0003] However, wind farm sites are mostly outdoor environments, and some scenarios involve harsh conditions such as high altitude and coastal salt spray. If the exposed parts of the bolts and nuts are not effectively protected against corrosion during installation, rainwater, moisture, salt spray and other media will quickly corrode the bolts and nuts, not only weakening the structural strength of the bolts, but also causing great inconvenience for subsequent maintenance and disassembly. In addition, the wind turbine box-type transformer itself will generate continuous vibration during operation. Combined with the frequent strong wind loads and gust impacts of the wind farm site, the anchor bolts will be under alternating stress for a long time, which will gradually lead to the decrease of the bolt preload and cause the nuts to loosen. If it is not detected and dealt with in time, it may cause the transformer to shift, tilt, or even cause major safety accidents such as equipment overturning.

[0004] Therefore, a box-type transformer installation structure for wind power is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a box-type transformer installation structure for wind power.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wind power box-type transformer installation structure, comprising a pre-set concrete foundation and an installation plate disposed at the bottom of the box-type transformer, wherein a plurality of pre-embedded anchor bolts are pre-embedded in a rectangular arrangement at the top of the pre-set concrete foundation, and the edge of the surface of the installation plate is respectively inserted into the rod wall of the pre-embedded anchor bolts through a plurality of installation holes, and the rod wall of the pre-embedded anchor bolts is provided with a first nut for fixing the installation plate, further comprising:

[0007] A protective cover is provided at the upper surface edge of the mounting plate, and the protective cover covers multiple pre-embedded anchor bolts and multiple first nuts. A fixing mechanism is provided between the two sides of the protective cover and the top two sides of the preset concrete foundation.

[0008] Multiple loosening detection mechanisms are all set on the top inner wall of the protective cover, and the positions of the multiple loosening detection mechanisms correspond to the positions of the multiple first nuts. The detection ends of the multiple loosening detection mechanisms are in contact with the tops of the multiple first nuts.

[0009] Multiple loosening suppression mechanisms are all installed on the top inner wall of the protective cover, and the positions of the multiple loosening suppression mechanisms correspond to the positions of the multiple pre-embedded anchor bolts;

[0010] The controller is fixedly installed inside the box-type transformer on the surface of the mounting plate, and both the loosening detection mechanism and the loosening suppression mechanism are electrically connected to the controller.

[0011] Preferably, the fixing mechanism includes a U-shaped fixing seat fixedly installed on the top of the preset concrete foundation, an L-shaped fixing plate fixedly installed on the side wall of the protective cover, and the lower end of the vertical part of the L-shaped fixing plate extends into the interior of the U-shaped fixing seat. The U-shaped fixing seat and the L-shaped fixing plate are provided with mutually cooperating anti-loosening bolts and a second nut.

[0012] Preferably, a sealing rubber gasket that contacts the upper surface of the mounting plate is fixedly provided at the bottom opening of the protective cover.

[0013] Preferably, the loosening detection mechanism includes four sliding rods fixedly mounted in a rectangle on the inner wall of the top of the protective cover. The lower ends of the four sliding rods are fixedly provided with the same fixed plate. The walls of the four sliding rods are vertically slidably provided with the same movable plate. The top of the movable plate is fixedly provided with a first spring between it and the inner wall of the top of the protective cover. A detection rod is vertically slidably provided in the middle of the fixed plate. A pressure sensor is fixedly provided at the bottom center of the movable plate. The upper end of the detection rod is fixedly connected to the detection end of the pressure sensor.

[0014] Preferably, the upper end of the detection rod is welded to the detection end of the pressure sensor, and a hemispherical sliding head is fixedly provided at the lower end of the detection rod.

[0015] Preferably, the loosening suppression mechanism includes a fixed sleeve fixedly disposed on the inner wall of the top of the protective cover, an electromagnetic block fixedly disposed on the inner wall of the top of the fixed sleeve, a permanent magnet block vertically slidably disposed inside the fixed sleeve, a second spring fixedly disposed between the electromagnetic block and the permanent magnet block, a suppression rod fixedly disposed at the bottom of the permanent magnet block, and a suppression ring fixedly disposed at the lower end of the suppression rod.

[0016] Preferably, the fixing sleeve is a square tube, the permanent magnet is a square block, and the four side walls of the permanent magnet are in sliding contact with the inner wall of the fixing sleeve.

[0017] Preferably, a rubber gasket is provided between the pre-set concrete foundation and the mounting plate, and the size of the rubber gasket is the same as the size of the mounting plate.

[0018] Compared with existing technologies, the advantages of this invention are as follows:

[0019] 1. Through the protective cover and fixing mechanism, the protective cover can completely cover and isolate the pre-embedded anchor bolts and the first nut, effectively blocking the corrosion of rainwater, moisture, salt spray and impurities in the outdoor environment, avoiding rust and thread jamming caused by exposed bolts and nuts, and extending the service life of the components; at the same time, with the cooperation of U-shaped fixing seat, L-shaped fixing plate and anti-loosening bolt and second nut, the protective cover can be firmly installed on the edge of the mounting plate, which not only ensures the protective reliability of the protective cover, but also further strengthens the stability of the overall installation structure and improves the load-bearing capacity of the installation structure.

[0020] 2. Through the loosening detection mechanism, when the protective cover covers the pre-embedded anchor bolt and the first nut, the lower end of the detection rod can automatically contact the top of the first nut at the corresponding position without additional positioning adjustment, realizing the synchronous completion of detection and protective assembly, simplifying the installation process. During the operation of the box-type transformer, the tightness of the first nut can be monitored in real time. The pressure sensor captures the thrust change generated when the first nut loosens and converts it into an electrical signal to be fed back to the controller, which can quickly identify early signs of loosening. This solves the problem that traditional installation structures cannot detect the loosening of the first bolt in real time, providing accurate basis for timely maintenance.

[0021] 3. With the loosening suppression mechanism in place, when the pressure value detected by the loosening detection mechanism exceeds the preset safety threshold, indicating that the first nut is becoming increasingly loose, the controller will immediately trigger the loosening suppression mechanism to start. The magnetic repulsive force generated after the electromagnetic block is energized will drive the permanent magnet block, the suppression rod and the suppression ring to move downward. The suppression ring will apply a stable downward pressure to the loose first nut, effectively curbing the continuous upward movement of the first nut and preventing it from seriously detaching from the pre-embedded anchor bolts. This will prevent safety accidents such as displacement, tilting or even overturning of the box-type transformer, and provide double safety protection for the long-term stable operation of the box-type transformer. Attached Figure Description

[0022] Figure 1 This is a perspective view of the installation of the box-type transformer, mounting plate, and pre-set concrete foundation provided by the present invention;

[0023] Figure 2 This is a perspective view of a box-type transformer installation structure for wind power provided by the present invention;

[0024] Figure 3 This is a three-dimensional view of the pre-set concrete foundation in the installation structure of a box-type transformer for wind power provided by the present invention;

[0025] Figure 4 This is a perspective view of the connection between the pre-set concrete foundation and the mounting plate in a box-type transformer installation structure for wind power provided by the present invention.

[0026] Figure 5 This is a cross-sectional perspective view of a box-type transformer installation structure for wind power provided by the present invention;

[0027] Figure 6 This is a perspective view of a loosening detection mechanism in a box-type transformer installation structure for wind power provided by the present invention;

[0028] Figure 7 This is a perspective view of a loosening suppression mechanism in a box-type transformer installation structure for wind power provided by the present invention.

[0029] In the diagram: 1. Pre-set concrete foundation; 2. Mounting plate; 3. Pre-embedded anchor bolt; 4. First nut; 5. Protective cover; 6. Fixing mechanism; 61. U-shaped fixing seat; 62. L-shaped fixing plate; 63. Anti-loosening bolt; 64. Second nut; 7. Loosening detection mechanism; 71. Sliding rod; 72. Fixing plate; 73. Moving plate; 74. First spring; 75. Detection rod; 76. Pressure sensor; 8. Loosening suppression mechanism; 81. Fixing sleeve; 82. Electromagnetic block; 83. Permanent magnet; 84. Second spring; 85. Suppression rod; 86. Suppression ring; 9. Controller; 10. Sealing rubber gasket; 11. Filling rubber gasket. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] like Figures 1-7 As shown, a wind power box-type transformer installation structure includes a pre-embedded concrete foundation 1 and an installation plate 2 set at the bottom of the box-type transformer. Multiple pre-embedded anchor bolts 3 are pre-embedded in a rectangular arrangement on the top of the pre-embedded concrete foundation 1. The edges of the surface of the installation plate 2 are respectively inserted into the rod walls of the pre-embedded anchor bolts 3 through multiple mounting holes. The rod walls of the pre-embedded anchor bolts 3 are provided with first nuts 4 to fix the installation plate 2. The cooperation between the pre-embedded anchor bolts 3 and the first nuts 4 can tightly fit and firmly connect the installation plate 2 to the pre-embedded concrete foundation 1, completing the main body installation of the box-type transformer. A rubber gasket 11 is provided between the pre-embedded concrete foundation 1 and the installation plate 2, and the size of the rubber gasket 11 is the same as the size of the installation plate 2. The rubber gasket 11 not only fills the minor unevenness on the surface of the pre-embedded concrete foundation 1, making the installation plate 2 bear force evenly, but also plays a role in buffering vibration and reducing mechanical impact during equipment operation. The structure also includes:

[0032] A protective cover 5 is installed at the upper edge of the mounting plate 2, covering multiple pre-embedded anchor bolts 3 and multiple first nuts 4. The protective cover 5 is made of stainless steel, with high structural strength and corrosion resistance. A sealing rubber gasket 10 is fixed at the bottom opening of the protective cover 5, which contacts the upper surface of the mounting plate 2, increasing the contact seal between the protective cover 5 and the mounting plate 2 and preventing rainwater from entering the interior of the protective cover 5 through gaps. Fixing mechanisms 6 are provided between the two sides of the protective cover 5 and the top two sides of the pre-set concrete foundation 1. The fixing mechanism 6 includes a U-shaped fixing seat 61 fixedly installed on the top of the pre-set concrete foundation 1, and L-shaped fixing seats are fixedly installed on the side walls of the protective cover 5. The L-shaped fixing plate 62 has its vertical lower end extending into the interior of the U-shaped fixing seat 61. A mutually cooperating anti-loosening bolt 63 and a second nut 64 are provided between the U-shaped fixing seat 61 and the L-shaped fixing plate 62. A spring clip for limiting the second nut 64 is inserted into the end of the anti-loosening bolt 63. Even if the second nut 64 becomes loose, it will not fall off the anti-loosening bolt 63. Furthermore, the anti-loosening bolt 63 and the second nut 64 are horizontally positioned, so loosening will not affect the stability of the connection between the U-shaped fixing seat 61 and the L-shaped fixing plate 62, ensuring a tight fit between the protective cover 5 and the mounting plate 2.

[0033] Multiple loosening detection mechanisms 7 are all installed on the top inner wall of the protective cover 5, and the positions of the multiple loosening detection mechanisms 7 correspond to the positions of the multiple first nuts 4. The detection ends of the multiple loosening detection mechanisms 7 are in contact with the tops of the multiple first nuts 4. The loosening detection mechanism 7 includes four sliding rods 71 ​​that are rectangularly fixed on the top inner wall of the protective cover 5. The lower ends of the four sliding rods 71 ​​are fixedly provided with the same fixed plate 72. The walls of the four sliding rods 71 ​​are vertically slidably connected to the same movable plate 73. The top of the movable plate 73 is fixedly connected to the top inner wall of the protective cover 5. The middle of the fixed plate 72 is vertically slidably provided with a detection rod 75 (the length of the detection rod 75 is pre-designed and is determined after the protective cover 5 is installed). The lower end of the detection rod 75 is positioned so that it contacts the top of the first nut 4. A pressure sensor 76 is fixedly installed at the bottom center of the movable disk 73. The upper end of the detection rod 75 is fixedly connected to the detection end of the pressure sensor 76. The upper end of the detection rod 75 and the detection end of the pressure sensor 76 are fixedly welded together. A hemispherical sliding head is fixedly installed at the lower end of the detection rod 75. The hemispherical sliding head can reduce the contact friction between the lower end of the detection rod 75 and the first nut 4, thereby reducing the wear of the detection rod 75. When the lower end of the detection rod 75 contacts the top of the first nut 4 at the corresponding position, the first nut 4 will apply an upward pushing force to the detection rod 75. This pushing force is transmitted to the upper end of the detection rod 75, causing it to press against the detection end of the pressure sensor 76.

[0034] Multiple loosening suppression mechanisms 8 are all installed on the top inner wall of the protective cover 5, and the positions of the multiple loosening suppression mechanisms 8 correspond to the positions of multiple pre-embedded anchor bolts 3. The loosening suppression mechanism 8 includes a fixing sleeve 81 fixedly installed on the top inner wall of the protective cover 5. A solenoid block 82 is fixedly installed on the top inner wall of the fixing sleeve 81. A permanent magnet block 83 is vertically slidably installed inside the fixing sleeve 81. A second spring 84 is fixed between the solenoid block 82 and the permanent magnet block 83. An suppression rod 85 is fixedly installed at the bottom of the permanent magnet block 83. An suppression ring 86 is fixedly installed at the lower end of the suppression rod 85. A notch is provided on one side of the suppression ring 86 to prevent the suppression ring 86 from colliding with the detection rod 75. When the power supply to the solenoid block 82 is turned on, the solenoid block 82 generates a magnetic field that matches the corresponding permanent magnet block 83. Under the repulsive force, the permanent magnet block 83 overcomes the elastic force of the second spring 84 and moves downward smoothly. At the same time, it drives the connected suppressing rod 85 and its lower suppressing ring 86 to move downward synchronously. When the power supply to the solenoid block 82 is disconnected, the second spring 84 applies an elastic force to the permanent magnet block 83, causing the suppressing rod 85 and the suppressing ring 86 to move upward synchronously, ensuring that the suppressing ring 86 is completely separated from the first nut 4. The fixed sleeve 81 is a square cylinder, and the permanent magnet block 83 is a square block. The four sides of the permanent magnet block 83 are in sliding contact with the inner wall of the fixed sleeve 81. The square structure design can increase the smoothness of the permanent magnet block 83 sliding inside the fixed sleeve 81, avoid the phenomenon of the permanent magnet block 83 rotating inside the fixed sleeve 81, and at the same time ensure that the suppressing ring 86 is in precise contact with the first nut 4.

[0035] The controller 9 is fixedly installed inside the box-type transformer on the surface of the mounting plate 2. The loosening detection mechanism 7 and the loosening suppression mechanism 8 are both electrically connected to the controller 9.

[0036] The operating principle of the present invention is described as follows: First, according to the installation plan of the wind power generation system and the layout requirements of the box-type transformer, the staff first pours the pre-set concrete foundation 1 at the designated location to ensure that the foundation structure is stable and compatible with the layout of the surrounding equipment. During the concrete foundation pouring process, the pre-embedded anchor bolts 3 are simultaneously embedded. Before pre-embedding, the bolt installation position must be accurately positioned to ensure that it corresponds completely with the position of the reserved installation hole on the mounting plate 2 at the bottom of the box-type transformer, laying the foundation for the precise coordination of subsequent installation.

[0037] During the installation phase, the staff first cleaned the top of the pre-constructed concrete foundation 1, removing surface impurities and protrusions. Then, the rubber pads 11 were laid flat on the top of the pre-constructed concrete foundation 1. These rubber pads 11 not only filled the minor unevenness on the surface of the pre-constructed concrete foundation 1, making the mounting plate 2 bear the force evenly, but also buffered vibration and reduced the mechanical impact during equipment operation. After the pads were laid, the box-type transformer along with the bottom mounting plate 2 was lifted steadily using hoisting equipment and slowly lowered with precise alignment with the position of the pre-embedded anchor bolts 3, so that the multiple mounting holes on the mounting plate 2 could be fitted one by one with the corresponding pre-embedded anchor bolts 3. Afterward, the staff put flat washers and spring washers on each pre-embedded anchor bolt 3 in sequence, and then tightened the first nut 4 to ensure that the mounting plate 2 and the pre-constructed concrete foundation 1 were tightly fitted and firmly connected, thus completing the main body installation of the box-type transformer.

[0038] After the box-type transformer is installed, the staff begins the protective assembly work. The protective cover 5 (a ring-shaped structure that fits around the box-type transformer and is integrated with the transformer shell) is moved from top to bottom and placed over the rectangularly distributed pre-embedded anchor bolts 3 and the first nut 4. When the protective cover 5 is lowered to the surface of the mounting plate 2, the lower ends of the L-shaped fixing plates 62 on both sides are inserted into the corresponding U-shaped fixing seats 61. Finally, the staff uses the anti-loosening bolts 63 to pass through the reserved holes of the U-shaped fixing seats 61 and the L-shaped fixing plates 62, and then tightens them with the second nut 64 to achieve a stable connection between the U-shaped fixing seats 61 and the L-shaped fixing plates 62. Thus, the protective cover 5 is reliably installed on the upper edge of the mounting plate 2. After the protective cover 5 is installed, it can completely isolate the pre-embedded anchor bolts 3 and the first nut 4, effectively blocking rainwater, moisture, salt spray and impurities in the outdoor environment from corroding the parts, and avoiding problems such as rust and thread jamming caused by the exposed pre-embedded anchor bolts 3 and the first nut 4.

[0039] When the protective cover 5 moves down and fits tightly against the surface of the mounting plate 2, the lower ends of the multiple detection rods 75 pre-set on its inner wall will simultaneously contact the top of the first nut 4 at the corresponding position. During the contact process, the first nut 4 will apply an upward thrust to the detection rod 75. This thrust is transmitted to the upper end of the detection rod 75, causing it to squeeze the detection end of the pressure sensor 76. When the first nut 4 is kept tight, its thrust on the detection rod 75 is within a stable and small range. Therefore, the external force on the pressure sensor 76 is small, and the output pressure signal remains constant. At the same time, the pressure sensor 76 will move slightly upward along with the moving disk 73 and compress the first spring 74 at the top of the moving disk 73. This gives the pressure sensor 76 good buffering performance, which can effectively offset possible instantaneous impact forces and prevent the detection rod 75 from causing excessive external force on the pressure sensor 76 and causing damage, thus ensuring the stable operation of the detection component.

[0040] If the first nut 4 shows signs of loosening under the action of equipment vibration, strong wind load, etc., it will shift upward along the pre-embedded anchor bolt 3. As the first nut 4 moves upward, the upward thrust it exerts on the detection rod 75 will gradually increase, which in turn will cause the pressure of the detection rod 75 on the pressure sensor 76 to increase synchronously. The pressure value detected by the pressure sensor 76 will continue to rise. When the controller 9 receives this continuously increasing pressure signal, it will quickly identify the abnormal state of the loosening of the first nut 4 and trigger the internal alarm module. It will remind the staff to pay attention in time through preset warning methods (such as audible and visual alarm, remote signal push) so that the loose first nut 4 can be repaired and tightened as soon as possible to prevent the potential danger from expanding.

[0041] If the first nut 4 becomes looser due to continuous vibration and continues to move upward along the pre-embedded anchor bolt 3, the thrust on the detection rod 75 will further increase. When the pressure value detected by the pressure sensor 76 exceeds the preset safety threshold of the controller 9, the controller 9 will immediately activate the loosening suppression mechanism 8 and connect the power supply to the solenoid block 82. After the solenoid block 82 is energized, it will generate a magnetic repulsive force with the corresponding permanent magnet block 83. Under the action of this repulsive force, the permanent magnet block 83 overcomes the elastic force of the second spring 84 and moves downward smoothly. At the same time, it drives the connected suppression rod 85 and its lower end suppression ring 86 to move downward synchronously. During the downward movement, the suppression ring 86 will contact the top of the loosened first nut 4 and suppress the first nut 4 from continuing to move upward by applying a stable downward pressure, thereby effectively curbing the continuous loosening trend of the first nut 4 and preventing it from seriously separating from the pre-embedded anchor bolt 3, thus providing a reliable guarantee for the operational safety of the box-type transformer.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wind power box-type transformer installation structure, comprising a pre-set concrete foundation (1) and an installation plate (2) disposed at the bottom of the box-type transformer, wherein a plurality of pre-embedded anchor bolts (3) are pre-embedded in a rectangular arrangement on the top of the pre-set concrete foundation (1), and the edge of the surface of the installation plate (2) is respectively inserted into the rod wall of the pre-embedded anchor bolts (3) through a plurality of installation holes, and the rod wall of the pre-embedded anchor bolts (3) is provided with a first nut (4) for fixing the installation plate (2), characterized in that, Also includes: A protective cover (5) is provided at the edge of the upper surface of the mounting plate (2), and the protective cover (5) covers a plurality of the pre-embedded anchor bolts (3) and a plurality of the first nuts (4). A fixing mechanism (6) is provided between the two sides of the protective cover (5) and the top two sides of the pre-embedded concrete foundation (1). Multiple loosening detection mechanisms (7) are all set on the top inner wall of the protective cover (5), and the positions of the multiple loosening detection mechanisms (7) correspond to the positions of the multiple first nuts (4). The detection ends of the multiple loosening detection mechanisms (7) are in contact with the top of the multiple first nuts (4). Multiple loosening suppression mechanisms (8) are all set on the top inner wall of the protective cover (5), and the positions of the multiple loosening suppression mechanisms (8) correspond to the positions of the multiple pre-embedded anchor bolts (3); The controller (9) is fixedly installed inside the box-type transformer on the surface of the mounting plate (2). The loosening detection mechanism (7) and the loosening suppression mechanism (8) are both electrically connected to the controller (9).

2. The installation structure of a box-type transformer for wind power according to claim 1, characterized in that, The fixing mechanism (6) includes a U-shaped fixing seat (61) fixedly installed on the top of the preset concrete foundation (1), an L-shaped fixing plate (62) fixedly installed on the side wall of the protective cover (5), and the lower end of the vertical part of the L-shaped fixing plate (62) extends into the interior of the U-shaped fixing seat (61). The U-shaped fixing seat (61) and the L-shaped fixing plate (62) are provided with mutually cooperating anti-loosening bolts (63) and second nuts (64).

3. The installation structure of a box-type transformer for wind power according to claim 1, characterized in that, The bottom opening of the protective cover (5) is fixedly provided with a sealing rubber pad (10) that contacts the upper surface of the mounting plate (2).

4. The installation structure of a box-type transformer for wind power according to claim 1, characterized in that, The loosening detection mechanism (7) includes four sliding rods (71) fixedly mounted in a rectangular shape on the inner wall of the top of the protective cover (5). The lower ends of the four sliding rods (71) are fixedly provided with the same fixed plate (72). The same moving plate (73) is vertically slidably mounted between the rod walls of the four sliding rods (71). A first spring (74) is fixedly mounted between the top of the moving plate (73) and the inner wall of the top of the protective cover (5). A detection rod (75) is vertically slidably mounted in the middle of the fixed plate (72). A pressure sensor (76) is fixedly mounted at the bottom center of the moving plate (73). The upper end of the detection rod (75) is fixedly connected to the detection end of the pressure sensor (76).

5. The installation structure of a box-type transformer for wind power according to claim 4, characterized in that, The upper end of the detection rod (75) is fixed to the detection end of the pressure sensor (76) by welding, and the lower end of the detection rod (75) is fixed with a hemispherical sliding head.

6. The installation structure of a box-type transformer for wind power according to claim 1, characterized in that, The loosening suppression mechanism (8) includes a fixed sleeve (81) fixedly installed on the inner wall of the top of the protective cover (5). A magnetic block (82) is fixedly installed on the inner wall of the top of the fixed sleeve (81). A permanent magnet block (83) is vertically slidably installed inside the fixed sleeve (81). A second spring (84) is fixedly installed between the magnetic block (82) and the permanent magnet block (83). A suppression rod (85) is fixedly installed at the bottom of the permanent magnet block (83). A suppression ring (86) is fixedly installed at the lower end of the suppression rod (85).

7. The installation structure of a box-type transformer for wind power according to claim 6, characterized in that, The fixed sleeve (81) is a square tube, the permanent magnet block (83) is a square block, and the four sides of the permanent magnet block (83) are in sliding contact with the inner wall of the fixed sleeve (81).

8. The installation structure of a box-type transformer for wind power according to claim 1, characterized in that, A rubber pad (11) is provided between the pre-set concrete foundation (1) and the mounting plate (2), and the size of the rubber pad (11) is the same as that of the mounting plate (2).

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