Vibration relieving structure of dry-type transformer

Abstract

The invention discloses a vibration relieving structure of a dry-type transformer, which relates to the technical field of transformers and comprises a transformer body and a bottom plate. The two ends of the steel cable are fixed and then arranged on the surfaces of the connecting bolts on the inner sides of the longitudinal beams in a sleeving mode, the middle of the steel cable penetrates through a hollow cavity of a bottom frame on the top of the transformer body, the transformer body is hoisted, part of weight is shared, and the burden of a lower buffering mechanism is relieved. In the whole process, the steel cable changes the path, the downward pressure is reduced, the first spring and the first damper stretch out and draw back to achieve a good vibration relieving effect, and the vibration relieving effect is achieved. And the service life of the lower damping mechanism and the use performance and service life of the dry-type transformer are improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular to a vibration relief structure for a dry-type transformer. Background Art

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment and other places. Simply put, a dry-type transformer refers to a transformer whose core and winding are not immersed in insulating oil.

[0003] In the prior art, such as the Chinese patent publication number: CN112397275A, a dry-type transformer is disclosed, including a box body, a duct side plate, a cover plate, a plastic ball, an upper steel plate, a winding group, a lower steel bar, a support column, a support foot, and an exhaust fan; the upper steel plate is arranged at the upper end of the winding group, and the lower steel bar is arranged at the lower end of the winding group; the exhaust fan cooperates with the circular perforation at the lower end of the box body cavity; the upper steel plate is welded and sealed to the inner side of the upper end of the box body cavity, the lower steel bar is arranged at the lower end of the box body cavity, connecting the left and right side plates, and the two sides of the lower steel bar are through grooves; the support column is welded to connect the lower steel bar and the lower plane inside the box body cavity; a plastic ball is arranged in the box body cavity at the upper end of the upper steel plate; the left and right sides of the box body are correspondingly slotted, and the cover plate is arranged at the upper end of the slot; the duct side plate is provided with slots on the left and right sides of the box body; the support feet are arranged at the four corners of the lower end of the box body. The transformer of the invention is provided with a cavity at the upper end of the shell to collect rainwater for heat dissipation. At the same time, the plastic balls are exposed to radiation for evaporation, and the two sides are convenient for air convection, thereby improving the heat dissipation effect of the dry-type transformer.

[0004] Although the above patent has the function of facilitating the collection of rainwater for heat dissipation and improving the heat dissipation effect of dry-type transformers, dry-type transformers will generate vibrations during operation. Vibration is not only the source of noise, but also poses a major challenge to the performance, service life and safety of dry-type transformers when they are operated for a long time under a vibrating state. Traditional dry-type transformers often use simple buffer shock-absorbing structures such as shrapnel shock-absorbing structures at the lower supporting parts. During the long-term use of heavy dry-type transformers, the buffer shock-absorbing mechanism is subjected to greater pressure, which can easily cause the elasticity of the rebound spring to gradually decrease or even be lost, causing the performance and service life of the dry-type transformer to decrease exponentially.

[0005] Therefore, we propose a dry-type transformer vibration mitigation structure to solve the problems raised in the above background technology. Summary of the invention

[0006] The object of the present invention is to provide a dry-type transformer vibration relief structure to solve the problem proposed in the above background technology that during long-term use of a heavy dry-type transformer, the buffer shock absorbing mechanism is subjected to great pressure, which easily causes the elasticity of the rebound spring to gradually decrease or even be lost, causing the performance and service life of the dry-type transformer to decrease exponentially.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dry-type transformer vibration relief structure, comprising a transformer body and a base plate, wherein the bottom of the base plate is provided with support assemblies near both sides, and the top of the base plate is provided with a lower buffer mechanism and an oblique push assembly that cooperate with each other to relieve the vibration generated during the operation of the transformer body, a lateral buffer mechanism is arranged outside the lower buffer mechanism to provide lateral buffering for the transformer body, an upper buffer mechanism is symmetrically arranged on the top of the transformer body, and an upper pull mechanism is arranged between the upper buffer mechanism and the support assembly, and the upper pull mechanism cooperates with the upper buffer mechanism to play a role in lifting the transformer The compressor body offsets the downward pressure, the pulling mechanism includes a steel cable, both ends of the steel cable are provided with annular fastening heads, the inner ends of the fastening heads are provided with fasteners for fastening, the upper buffer mechanism includes a base frame, the top of the base frame is symmetrically mounted with a first damper, the outer ends of the two first dampers are fixedly connected to a mounting frame, the outer surface of the mounting frame is fixedly connected to an extension plate extending outward, the outer surface of one of the extension plates is fixedly connected to a first sliding rod and one end of the first sliding rod slides through the outer surface of the other extension plate, and a first spring is sleeved on the outside of the first sliding rod at a position between the two extension plates.

[0008] Preferably, the number of the bracket assemblies is set to two, each including a lower beam, the lower beam is symmetrically fixedly connected to the bottom of the base plate near the edges on both sides, the top of the lower beam is symmetrically welded and fixed with longitudinal beams near the two ends, the outer surfaces of the two longitudinal beams are fixedly connected with two fastening bolts, an X-shaped fastening frame is fixedly connected between the outer surfaces of the four fastening bolts, and connecting bolts are installed on the inner walls of the two longitudinal beams near the top.

[0009] Preferably, the fastening head sleeve is arranged on the outside of the connecting bolt, the outer surface of the steel cable passes through the outer surface of the longitudinal beam, a hollow cavity is opened inside the base frame, the outer surface of the steel cable passes through the inside of the hollow cavity and passes through the inside of two installation frames, and the outer surface of the base frame near the front and rear side edges is penetrated and connected with a connecting shaft.

[0010] Preferably, the connecting shaft is located inside the hollow cavity and is rotatably sleeved with a pressure roller, the outer surface of the pressure roller is in contact with the outer surface of the steel cable near the bottom, and the interior of the mounting frame is symmetrically rotatably connected to a guide wheel, the groove wall on the surface of the guide wheel is in contact with the outer surface of the steel cable.

[0011] Preferably, the lower buffer mechanism is provided with two groups, each group of the lower buffer mechanism includes two first rotating seats, a lower rod is rotatably connected between the inner surface walls of the first rotating seats, both ends of the lower rod are sleeved with connecting plates extending upward, and an upper rod is sleeved between the outer surfaces of the two connecting plates near the top, the multiple connecting plates are of the same length and are arranged in parallel, the outer surfaces of the two upper rods are movably connected with second rotating seats near the middle position, and a support plate is fixedly connected between the tops of the two second rotating seats.

[0012] Preferably, both ends of the lower rod and the upper rod are threadedly connected with a first nut, and the outer surface of the first nut is tightly fitted with the outer surface of the connecting plate, wherein a mounting rod is rotatably inserted at a position near the bottom between the outer surfaces of the two connecting plates and at a position near the top between the outer surfaces of the other two connecting plates, and both ends of the two mounting rods are threadedly connected with a second nut, and the outer surface of the second nut is tightly fitted with the outer surface of the connecting plate.

[0013] Preferably, the outer surfaces of the two mounting rods are rotatably connected with the first rotating head and the second rotating head respectively, a second damper is fixedly installed between the outer surfaces of the opposite sides of the first rotating head and the second rotating head, a second spring is sleeved on the outside of the second damper body, and the two ends of the second spring are respectively in contact with the outer surfaces of the first rotating head and the second rotating head, and the inclination directions of the second damper and the connecting plate are opposite.

[0014] Preferably, the oblique thrust assembly includes two fixed seats, the two fixed seats are fixedly connected to the top of the base plate and are located away from the lower buffer mechanism, a fixing rod is installed between the outer surfaces of the two fixed seats by bolts, the outer surface of the fixing rod is rotatably connected to two third rotating heads, a third damper is installed on the top of the third rotating head, a fourth rotating head is installed on the top of the third damper, the fourth rotating head is rotatably connected to the outer surface of one of the upper rods, and a third spring is fixedly connected between the outer surfaces of the fourth rotating head and the third rotating head.

[0015] Preferably, the lateral buffer mechanism includes a connecting beam, both ends of which are welded with connecting plates, the two connecting plates are respectively fixedly connected to the opposite surfaces of the two support plates, the front and rear outer surfaces of the connecting beam are fixedly connected to second sliding rods near the top, and the outer surfaces of the two second sliding rods are movably connected to mounting plates.

[0016] Preferably, both ends of the two mounting plates are sleeved on the outer surfaces of two adjacent upper rods, a fourth spring is sleeved on the outside of the second sliding rod, and both ends of the fourth spring respectively contact the outer surfaces of the connecting beam and the mounting plates, and a fourth damper is fixedly installed between the outer surfaces of one of the mounting plates and the connecting beam.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is used, the two ends of the steel cable are fixed and sleeved on the surface of the connecting bolt on the inner side of the longitudinal beam, and the middle passes through the hollow cavity of the bottom frame at the top of the transformer body, which plays the role of hoisting the transformer body, sharing part of the weight, and alleviating the burden of the buffer mechanism below. When the transformer body vibrates, it moves upward, and the first spring pushes the first damper to extend, extending the hoisting path of the steel cable. It moves downward, and the bottom frame drops. The insufficient length of the steel cable causes the first damper to contract, and the extension plate applies pressure to the first spring and moves horizontally. The first damper expands and contracts irregularly, and the shaking of the steel cable offsets the position change. During the whole process, the steel cable changes its path and reduces the downward pressure. The expansion and contraction of the first spring and the first damper play a good vibration relief effect, thereby improving the service life of the damping mechanism below and the performance and life of the dry-type transformer.

[0019] 2. When the present invention is used, when the transformer body vibrates up and down during operation, the support plate swings up and down, and the connecting plate rotates with the lower rod as the center. The parallelogram structure formed by multiple groups of connecting plates enables the support plate to always horizontally support the transformer body to ensure its stability. The third damper on the outermost side opposite to the inclination direction of the connecting plate is compressed and contracts and squeezes the third spring. After release, the third damper is pushed to reset, supports the connecting plate and absorbs vibration energy. When the connecting plate is tilted, the distance between adjacent connecting plates changes, and the mounting rod drives the second damper and the second spring to expand and contract, thereby playing a buffering and energy-absorbing role. When the transformer body swings left and right, the second damper, the second spring, the third damper and the third spring expand and contract to relieve vibration. The inclined buffer structure disperses stress evenly, adapts to multi-angle vibrations, has excellent vibration relief effect, and ensures the reliability and service life of the transformer body during long-term use.

[0020] 3. When the present invention is used, when the transformer body generates vibration and shakes back and forth during operation, the two support plates and the connecting beam will shake back and forth. When the connecting beam shakes back and forth, the fourth spring and the fourth damper between the connecting beam and the mounting plate will absorb energy by buffering through expansion and contraction, thereby effectively offsetting the vibration energy of the transformer body shaking back and forth during vibration, thereby alleviating the vibration in the front and rear directions. In combination with the lower buffer mechanism and the oblique thrust assembly below, the multi-directional vibration of the transformer body is alleviated, thereby greatly improving the shock absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a dry-type transformer vibration mitigation structure of the present invention;

[0022] Figure 2 A three-dimensional diagram of a dry-type transformer vibration mitigation structure according to the present invention from another angle;

[0023] Figure 3A schematic diagram of the structure of a bracket assembly of a dry-type transformer vibration mitigation structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of an upper buffer mechanism of a dry-type transformer vibration relief structure of the present invention;

[0025] Figure 5 A schematic diagram of the bottom plate structure of a dry-type transformer vibration relief structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the lower buffer mechanism of a dry-type transformer vibration relief structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of a lateral buffer mechanism of a dry-type transformer vibration relief structure of the present invention;

[0028] Figure 8 for Figure 4 Enlarged view of point A in the middle;

[0029] Fig. 9 for Figure 4 Enlarged view of point B in the middle;

[0030] Fig.10 for Figure 4 Enlarged view of point C in the middle;

[0031] Fig.11 for Figure 5 Enlarged view of point D in the middle.

[0032] In the figure: 1. transformer body; 11. bottom plate; 2. bracket assembly; 201. lower beam; 202. longitudinal beam; 203. fastening bolt; 204. connecting bolt; 205. fastening frame; 3. upper buffer mechanism; 301. bottom frame; 302. hollow cavity; 303. connecting shaft; 304. pressure roller; 305. first damper; 306. mounting frame; 307. guide wheel; 308. extension plate; 309. first slide bar; 310. first spring; 4. pull-up mechanism; 401. steel cable; 402. fastening head; 403. fastener; 5. lower buffer mechanism; 501. first rotating seat; 502. lower rod; 503. connecting plate ;504, upper rod;505, first nut;506, mounting rod;507, second nut;508, first rotating head;509, second rotating head;510, second damper;511, second spring;512, second rotating seat;513, support plate;6, oblique thrust assembly;601, fixed seat;602, fixed rod;603, third rotating head;604, third damper;605, third spring;606, fourth rotating head;7, lateral buffer mechanism;701, connecting beam;702, connecting plate;703, mounting plate;704, fourth damper;705, second sliding rod;706, fourth spring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-Figure 11As shown, the present invention provides a technical solution: a dry-type transformer vibration relief structure, comprising a transformer body 1 and a base plate 11, the bottom of the base plate 11 is installed with a bracket assembly 2 near both sides, the top of the base plate 11 is installed with a lower buffer mechanism 5 and an oblique push assembly 6 that cooperate with each other to relieve the vibration generated during the operation of the transformer body 1, the outer side of the lower buffer mechanism 5 is provided with a lateral buffer mechanism 7 to provide lateral buffering for the transformer body 1, the top of the transformer body 1 is symmetrically provided with an upper buffer mechanism 3, and a pull-up mechanism 4 is provided between the upper buffer mechanism 3 and the bracket assembly 2, and the pull-up mechanism 4 cooperates with the upper buffer mechanism 3 to play a role in lifting the transformer The device body 1 offsets the downward pressure, the pull-up mechanism 4 includes a steel cable 401, both ends of the steel cable 401 are provided with annular fastening heads 402, the inner ends of the fastening heads 402 are provided with fastening fasteners 403, the upper buffer mechanism 3 includes a base frame 301, the top of the base frame 301 is symmetrically mounted with first dampers 305, the outer ends of the two first dampers 305 are fixedly connected with mounting frames 306, the outer surface of the mounting frame 306 is fixedly connected with an extension plate 308 extending outward, the outer surface of one of the extension plates 308 is fixedly connected with a first slide bar 309, and one end of the first slide bar 309 slides through the outer surface of the other extension plate 308 , a first spring 310 is sleeved on the outside of the first slide bar 309 at a position between the two extension plates 308, the number of the bracket assembly 2 is set to two, each including a lower beam 201, the lower beam 201 is symmetrically fixedly connected to the bottom of the bottom plate 11 near the edges on both sides, and the top of the lower beam 201 is symmetrically welded and fixed with longitudinal beams 202 near the two ends, and the outer surfaces of the two longitudinal beams 202 are fixedly connected with two fastening bolts 203, and the outer surfaces of the four fastening bolts 203 are fixedly connected with X-shaped fastening frames 205, and the inner surface walls of the two longitudinal beams 202 are installed near the top. The fastening heads 402 are sleeved on the outside of the connecting bolts 204. The outer surface of the steel cable 401 passes through the outer surface of the longitudinal beam 202, and a hollow cavity 302 is opened inside the base frame 301. The outer surface of the steel cable 401 passes through the inside of the hollow cavity 302 and passes through the inside of two installation frames 306. The outer surface of the base frame 301 is penetrated and connected with a connecting shaft 303 near the front and rear side edges. The connecting shaft 303 is located inside the hollow cavity 302 and is rotatably sleeved with a pressure roller 304. The outer surface of the pressure roller 304 is in contact with the outer surface of the steel cable 401 near the bottom. The inside of the installation frame 306 is symmetrically rotatably connected with a guide wheel 307, and the groove wall on the surface of the guide wheel 307 is in contact with the outer surface of the steel cable 401.

[0035] In this embodiment, the transformer body 1 in the device is a dry-type phase-change transformer, which is wrapped with a protective shell on the outside, and the protective shell is provided with heat dissipation fins on the outside, with ventilation on both sides, and the heat dissipation method is natural air cooling and forced air cooling. The main weight of the device as a whole is borne by the bottom plate 11, the lower buffer mechanism 5 and the inclined thrust assembly 6 below, and the two longitudinal beams 202 are mainly used to install the steel cable 401. The two ends of the steel cable 401 are wound back and fixed by fasteners 403 to form a ring-shaped fastening head 402, which is sleeved on the surface of the connecting bolt 204 on the inner side of the longitudinal beam 202, and the middle part of the steel cable 401 passes through the hollow cavity 302 inside the top chassis 301 of the transformer body 1, thereby playing the role of hoisting the transformer body. 1, shares part of the weight of the transformer body 1, can effectively alleviate the burden of the buffer mechanism of the dry-type transformer body 1, and when the transformer body 1 moves upward during vibration, the rebound of the first spring 310 between the two extension plates 308 brackets will push the two first dampers 305 ends on the base frame 301 to extend, thereby extending the overall lifting path of the steel cable 401, and when the transformer body 1 moves downward during vibration, the base frame 301 will follow the decline, at this time the path length of the steel cable 401 is insufficient, so the installation frame 306 will squeeze the first damper 305 to make it shrink, and the two extension plates 308 will press the first spring 310 during the process, and When the transformer body 1 moves horizontally during vibration, the two first dampers 305 will expand and contract irregularly, and the steel cable 401 will swing back and forth and left and right, thereby offsetting the position change of the transformer body 1. During the entire vibration process, it not only changes the path of the steel cable 401 and reduces the downward pressure of the transformer body 1, but also the first spring 310 and the first damper 305 also have a good vibration relief effect through expansion and contraction. The buffer shock-absorbing mechanism has a good auxiliary effect, greatly improves the service life of the shock-absorbing mechanism below the dry-type transformer body 1, and improves the performance and service life of the dry-type transformer. In addition, the pressure roller 304 rotates through the connecting shaft 303 It is arranged inside the hollow cavity 302 of the base frame 301 to guide the steel cable 401 and convert the sliding friction between the steel cable 401 and the inner wall of the hollow cavity 302 into rolling friction. While the lifting path of the steel cable 401 is changed by setting the installation frame 306, the two guide wheels 307 inside the installation frame 306 convert the sliding friction between the steel cable 401 and the inner wall of the installation frame 306 into rolling friction, which effectively reduces the friction damage of the steel cable 401 and increases the service life of the steel cable 401. At the same time, it also makes the relative movement of the steel cable 401 during the lifting of the transformer body 1 smoother, thereby improving the vibration relief effect.

[0036] Embodiment 2: Figure 1-Figure 11As shown, the lower buffer mechanism 5 is provided with two groups, and each group of the lower buffer mechanism 5 includes two first rotating seats 501, and a lower rod 502 is rotatably connected between the inner surface walls of the first rotating seats 501, and both ends of the lower rod 502 are sleeved with connecting plates 503 extending upward, and an upper rod 504 is sleeved between the outer surfaces of the two connecting plates 503 near the top, and the multiple connecting plates 503 are of the same length and are arranged in parallel, and the outer surfaces of the two upper rods 504 are movably connected to the second rotating seats 512 near the middle position, and the tops of the two second rotating seats 512 are fixed between them. A support plate 513 is connected, and both ends of the lower rod 502 and the upper rod 504 are threadedly connected with a first nut 505, and the outer surface of the first nut 505 is tightly fitted with the outer surface of the connecting plate 503, wherein a mounting rod 506 is rotatably inserted between the outer surfaces of the two connecting plates 503 near the bottom and between the outer surfaces of the other two connecting plates 503 near the top, and both ends of the two mounting rods 506 are threadedly connected with a second nut 507, and the outer surface of the second nut 507 is tightly fitted with the outer surface of the connecting plate 503, and the outer surfaces of the two mounting rods 506 are The first rotating head 508 and the second rotating head 509 are respectively rotatably connected to the surface, and a second damper 510 is fixedly installed between the outer surfaces of the opposite sides of the first rotating head 508 and the second rotating head 509. The second damper 510 is sleeved with a second spring 511 on the outer side of the body, and the two ends of the second spring 511 are respectively in conflict with the outer surfaces of the first rotating head 508 and the second rotating head 509. The second damper 510 and the connecting plate 503 are inclined in opposite directions. The oblique thrust assembly 6 includes two fixed seats 601, and the two fixed seats 601 are fixedly connected to the bottom The top of the plate 11 is located away from the lower buffer mechanism 5, and a fixing rod 602 is installed between the outer surfaces of the two fixing seats 601 by bolts. The outer surface of the fixing rod 602 is rotatably connected to two third rotating heads 603, and a third damper 604 is installed on the top of the third rotating head 603. A fourth rotating head 606 is installed on the top of the third damper 604. The fourth rotating head 606 is rotatably connected to the outer surface of one of the upper rods 504, and a third spring 605 is fixedly connected between the outer surfaces of the fourth rotating head 606 and the third rotating head 603.

[0037] The second rotating seat 512 is used to rotatably install the lower rod 502 on the top of the bottom plate 11, and the second rotating seat 512 is used to rotatably connect the upper rod 504 and the support plate 513. Each lower buffer mechanism 5 includes two groups of connecting plates 503 with symmetrical front and rear positions. The number of each group of connecting plates 503 is two, and the length and inclination angle of all connecting plates 503 are consistent. Therefore, the four rotation points of any two adjacent connecting plates 503 on the same side will form a parallelogram, so that the upper support plate 513 used to install and support the transformer body 1 is always in a horizontal state. When in use, when the transformer body 1 vibrates up and down during operation, the support plate 513 will shake up and down. During this process, the connecting plate 503 will rotate left and right with the lower rod 502 as the center, and the parallelogram structure formed by the cooperation of multiple groups of connecting plates 503 will make the support plate 513 always in a horizontal state to support the transformer body 1, thereby ensuring the stability of the transformer body 1. When the third damper 604 in the opposite direction of the plate 503 is compressed, it will shrink and squeeze the third spring 605 for compression. After the compressed third spring 605 is released, it pushes the third damper 604 to reset, thereby forming a support for the connecting plate 503 and absorbing the vibration energy transmitted by the connecting plate 503. When the connecting plate 503 is tilted in the direction of the third damper 604, the distance between adjacent connecting plates 503 will be reduced, and vice versa. In this process, the mounting rod 506 between adjacent connecting plates 503 will drive the second damper 510 and the second spring 511 to expand and contract, thereby achieving the effect of buffering and absorbing energy. When the transformer body 1 vibrates and shakes left and right, the second damper 510, the second spring 511, the third damper 604 and the third spring 605 will alleviate the vibration by expansion and contraction. The inclined buffer structure disperses the stress more evenly, adapts to multi-angle vibration, and has an excellent vibration alleviation effect, thereby ensuring the reliability and service life of the transformer body 1 during long-term use.

[0038] Embodiment 3: Figure 1-Figure 11 As shown, the lateral buffer mechanism 7 includes a connecting beam 701, both ends of which are welded and fixed with connecting plates 702, the two connecting plates 702 are respectively fixedly connected to the opposite surfaces of the two support plates 513, the front and rear outer surfaces of the connecting beam 701 near the top are fixedly connected with second slide bars 705, the outer surfaces of the two second slide bars 705 are movably connected with mounting plates 703, the two ends of the two mounting plates 703 are both sleeved on the outer surfaces of two adjacent upper rods 504, the outer part of the second slide bar 705 is sleeved with a fourth spring 706, the two ends of the fourth spring 706 are respectively in conflict with the outer surfaces of the connecting beam 701 and the mounting plate 703, and a fourth damper 704 is fixedly installed between the outer surface of one mounting plate 703 and the connecting beam 701.

[0039] In this embodiment, the two support plates 513 are formed into a whole by the connecting beam 701 and the connecting plate 702, and the two second rotating seats 512 movably connected to the upper rod 504 allow the support plates 513 to move forward and backward. When the transformer body 1 generates vibration and shakes forward and backward during operation, the two support plates 513 and the connecting beam 701 will shake forward and backward. When the connecting beam 701 shakes forward and backward, the fourth spring 706 and the fourth damper 704 between the connecting beam 701 and the mounting plate 703 will buffer and absorb energy by expansion and contraction, thereby effectively offsetting the vibration energy of the transformer body 1 shaking forward and backward during vibration, and having the effect of alleviating the vibration in the forward and backward directions. In conjunction with the lower buffer mechanism 5 and the oblique thrust assembly 6 below, it has the effect of alleviating the multi-directional vibration of the transformer body 1, greatly improving the shock absorption effect.

[0040] The effect and working principle achieved by the entire mechanism are as follows: the transformer body 1 in the device is a dry-type phase-change transformer, which is wrapped with a protective shell on the outside, and the outside of the protective shell is provided with cooling fins, with ventilation on both sides, and the heat dissipation method is natural air cooling and forced air cooling. The main weight of the device as a whole is borne by the bottom plate 11, the lower buffer mechanism 5 and the inclined thrust assembly 6 below, and the two longitudinal beams 202 are mainly used to install the steel cable 401. The two ends of the steel cable 401 are wound back and fixed by fasteners 403 to form an annular fastening head 402, which is sleeved on the surface of the connecting bolt 204 on the inner side of the longitudinal beam 202, and the middle part of the steel cable 401 passes through the hollow cavity 302 inside the top chassis 301 of the transformer body 1, thereby playing the role of hoisting the transformer body 1 and sharing part of the weight of the transformer body 1. The amount can effectively alleviate the burden of the buffer mechanism for lowering the dry-type transformer body 1, and when the transformer body 1 moves upward during vibration, the rebound of the first spring 310 between the two extension plate 308 brackets will push the ends of the two first dampers 305 on the base frame 301 to extend, thereby extending the overall lifting path of the steel cable 401, and when the transformer body 1 moves downward during vibration, the base frame 301 will follow the decline. At this time, the path length of the steel cable 401 is insufficient, so the installation frame 306 will squeeze the first damper 305 to shrink it. During the process, the two extension plates 308 will apply pressure to the first spring 310, and when the transformer body 1 moves horizontally during vibration, the two first dampers 305 will expand and contract irregularly, and the steel cable 401 will swing back and forth. The first spring 310 and the first damper 305 also play a good vibration relief effect through expansion and contraction. The buffer shock absorbing mechanism has a good auxiliary effect, which greatly improves the service life of the shock absorbing mechanism below the dry-type transformer body 1, and improves the performance and service life of the dry-type transformer. When the transformer body 1 vibrates up and down during operation, the support plate 513 will shake up and down. During this process, the connecting plate 503 will rotate left and right with the lower rod 502 as the center, and the parallelogram structure formed by the cooperation of multiple groups of connecting plates 503 will make the support plate 513 always in The third damper 604 at the most side opposite to the tilting direction of the connecting plate 503 will shrink and compress the third spring 605 after being compressed. The compressed third spring 605 will push the third damper 604 to reset after being released, thereby supporting the connecting plate 503 and absorbing the vibration energy transmitted by the connecting plate 503. When the connecting plate 503 tilts toward the third damper 604, the distance between adjacent connecting plates 503 will decrease, and vice versa. In this process, the mounting rod 506 between adjacent connecting plates 503 will drive the second damper 510 and the second spring 511 to expand and contract, thereby achieving the effect of buffering and absorbing energy. When the transformer body 1 vibrates and shakes left and right,The second damper 510, the second spring 511, the third damper 604 and the third spring 605 can relieve vibration by telescoping. The inclined buffer structure disperses stress more evenly and adapts to multi-angle vibrations. It has an excellent vibration relief effect, thereby ensuring the reliability and service life of the transformer body 1 during long-term use. When the transformer body 1 vibrates and shakes back and forth during operation, the two support plates 513 and the connecting beam 701 will shake back and forth. When the connecting beam 701 shakes back and forth, the fourth spring 706 and the fourth damper 704 between the connecting beam 701 and the mounting plate 703 will absorb energy by telescoping, thereby effectively offsetting the vibration energy of the transformer body 1 shaking back and forth during vibration, and having the effect of alleviating the vibration in the front and rear directions. In combination with the lower buffer mechanism 5 and the oblique thrust assembly 6 below, it has the effect of alleviating the multi-directional vibration of the transformer body 1, greatly improving the shock absorption effect.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dry-type transformer vibration mitigation structure, comprising a transformer body (1) and a bottom plate (11), characterized in that: The bottom of the base plate (11) is provided with a support assembly (2) near both sides; the top of the base plate (11) is provided with a lower buffer mechanism (5) and an oblique thrust assembly (6) that cooperate with each other and are used to alleviate the vibration generated during the operation of the transformer body (1); a lateral buffer mechanism (7) is provided outside the lower buffer mechanism (5) and is used to provide lateral buffering for the transformer body (1); an upper buffer mechanism (3) is symmetrically provided on the top of the transformer body (1); a pull-up mechanism (4) is provided between the upper buffer mechanism (3) and the support assembly (2); the pull-up mechanism (4) cooperates with the upper buffer mechanism (3) to hoist the transformer body (1) and offset the downward pressure generated; The pulling mechanism (4) comprises a steel cable (401), both ends of the steel cable (401) are provided with annular fastening heads (402), and the inner end of the fastening head (402) is provided with a fastening member (403) for fastening; The upper buffer mechanism (3) comprises a base frame (301), the top of which is symmetrically mounted with first dampers (305), the outer ends of the two first dampers (305) are fixedly connected with a mounting frame (306), the outer surface of the mounting frame (306) is fixedly connected with an outwardly extending extension plate (308), the outer surface of one of the extension plates (308) is fixedly connected with a first slide bar (309), and one end of the first slide bar (309) slides through the outer surface of the other extension plate (308), and a first spring (310) is sleeved on the outside of the first slide bar (309) at a position between the two extension plates (308).

2. The dry-type transformer vibration mitigation structure according to claim 1 is characterized in that: The number of the support assemblies (2) is set to two, each comprising a lower beam (201), the lower beam (201) being symmetrically fixedly connected to the bottom of the base plate (11) near the edges on both sides, the top of the lower beam (201) being symmetrically welded and fixed with longitudinal beams (202) near the two ends, the outer surfaces of the two longitudinal beams (202) being fixedly connected with two fastening bolts (203), the outer surfaces of the four fastening bolts (203) being fixedly connected with an X-shaped fastening frame (205), and the inner surface walls of the two longitudinal beams (202) being near the top thereof being installed with connecting bolts (204).

3. The dry-type transformer vibration mitigation structure according to claim 2 is characterized in that: The fastening head (402) is sleeved on the outside of the connecting bolt (204); the outer surface of the steel cable (401) passes through the outer surface of the longitudinal beam (202); a hollow cavity (302) is provided inside the base frame (301); the outer surface of the steel cable (401) passes through the inside of the hollow cavity (302) and passes through the inside of two installation frames (306); and the outer surface of the base frame (301) near the front and rear side edges is penetrated and connected with a connecting shaft (303).

4. The dry-type transformer vibration mitigation structure according to claim 3 is characterized in that: The connecting shaft (303) is rotatably sleeved with a pressure roller (304) located inside the hollow cavity (302); the outer surface of the pressure roller (304) is in contact with the outer surface of the steel cable (401) near the bottom; the interior of the installation frame (306) is symmetrically rotatably connected with a guide wheel (307); the groove wall on the surface of the guide wheel (307) is in contact with the outer surface of the steel cable (401).

5. The dry-type transformer vibration mitigation structure according to claim 4 is characterized in that: The lower buffer mechanism (5) is provided with two groups, and each group of the lower buffer mechanism (5) comprises two first rotating seats (501), the inner surface walls of the first rotating seats (501) are rotatably connected with a lower rod (502), both ends of the lower rod (502) are sleeved with connecting plates (503) extending upward, and an upper rod (504) is sleeved between the outer surfaces of the two connecting plates (503) near the top, and the plurality of connecting plates (503) are of the same length and are arranged in parallel, the outer surfaces of the two upper rods (504) are movably connected with a second rotating seat (512) near the middle position, and a support plate (513) is fixedly connected between the tops of the two second rotating seats (512).

6. The dry-type transformer vibration mitigation structure according to claim 5, characterized in that: Both ends of the lower rod (502) and the upper rod (504) are threadedly connected with a first nut (505), and the outer surface of the first nut (505) is tightly fitted with the outer surface of the connecting plate (503), wherein a mounting rod (506) is rotatably inserted at a position near the bottom between the outer surfaces of the two connecting plates (503) and a position near the top between the outer surfaces of the other two connecting plates (503), and both ends of the two mounting rods (506) are threadedly connected with a second nut (507), and the outer surface of the second nut (507) is tightly fitted with the outer surface of the connecting plate (503).

7. The dry-type transformer vibration mitigation structure according to claim 6, characterized in that: The outer surfaces of the two mounting rods (506) are rotatably connected to a first rotating head (508) and a second rotating head (509), respectively; a second damper (510) is fixedly installed between the outer surfaces of the opposite sides of the first rotating head (508) and the second rotating head (509); a second spring (511) is sleeved on the outside of the body of the second damper (510), and the two ends of the second spring (511) are respectively in contact with the outer surfaces of the first rotating head (508) and the second rotating head (509); the second damper (510) and the connecting plate (503) are inclined in opposite directions.

8. The dry-type transformer vibration mitigation structure according to claim 7, characterized in that: The oblique thrust assembly (6) comprises two fixed seats (601), the two fixed seats (601) are fixedly connected to the top of the base plate (11) and are located away from the lower buffer mechanism (5), a fixed rod (602) is installed between the outer surfaces of the two fixed seats (601) by bolts, the outer surface of the fixed rod (602) is rotatably connected to two third rotating heads (603), the top of the third rotating head (603) is installed with a third damper (604), the top of the third damper (604) is installed with a fourth rotating head (606), the fourth rotating head (606) is rotatably connected to the outer surface of one of the upper rods (504), and a third spring (605) is fixedly connected between the outer surfaces of the fourth rotating head (606) and the third rotating head (603).

9. The dry-type transformer vibration mitigation structure according to claim 8, characterized in that: The transverse buffer mechanism (7) comprises a connecting beam (701), both ends of which are welded with connecting plates (702), the two connecting plates (702) are respectively fixedly connected to the opposite surfaces of the two support plates (513), the front and rear outer surfaces of the connecting beam (701) are fixedly connected to second sliding rods (705) near the top, and the outer surfaces of the two second sliding rods (705) are movably connected to the mounting plates (703).

10. The dry-type transformer vibration mitigation structure according to claim 9, characterized in that: Both ends of the two mounting plates (703) are sleeved on the outer surfaces of two adjacent upper rods (504), and a fourth spring (706) is sleeved on the outside of the second sliding rod (705). Both ends of the fourth spring (706) are in contact with the outer surfaces of the connecting beam (701) and the mounting plates (703), respectively. A fourth damper (704) is fixedly installed between the outer surfaces of one of the mounting plates (703) and the connecting beam (701).

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