A vibration relief structure for dry-type transformers

Abstract

The present invention discloses a dry-type transformer vibration relief structure, which relates to the technical field of transformers and comprises a transformer body and a base plate; after the two ends of the steel cable are fixed, they are sleeved on the surface of the connecting bolt on the inner side of the longitudinal beam, and the middle part passes through the hollow cavity of the base 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 base frame drops, and the insufficient length of the steel cable causes the first damper to contract, and the extension plate applies pressure to the first spring, moves horizontally, and 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, and the expansion and contraction of the first spring and the first damper exert a good vibration relief effect, thereby improving the service life of the shock absorbing mechanism below and the performance and service life of the dry-type transformer.

Description

Technical Field

[0001] The present 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 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 panel, a cover panel, a plastic ball, an upper steel plate, a winding group, a lower steel bar, a support column, a support leg, 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 through-hole 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 panels, and the two sides of the lower steel bar are grooved; the support column is welded to connect the lower steel bar and the lower plane inside the box body cavity; a plastic ball is provided 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 grooved, and the cover panel is arranged at the upper end of the groove; the duct side panel is provided with grooves on the left and right sides of the box body; the support legs are provided at the four corners of the lower end of the box body. The transformer of this 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 facilitate 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 vibration 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 operate in a vibrating state for a long time. Traditional dry-type transformers often use simple buffering and shock-absorbing structures such as shrapnel-type shock-absorbing structures at the lower support parts. During long-term use of heavy dry-type transformers, the buffering and shock-absorbing mechanisms are 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 art 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, resulting in a geometric reduction in the performance and service life of the dry-type transformer.

[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 bracket 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 provided on the outside of the lower buffer mechanism to provide lateral buffering for the transformer body, an upper buffer mechanism is symmetrically provided on the top of the transformer body, and an upper pull mechanism is provided between the upper buffer mechanism and the bracket 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 generated, and the pulling mechanism includes a steel cable, an annular fastening head is provided at both ends of the steel cable, and a fastener is provided at the inner end of the fastening head for fastening. The upper buffer mechanism includes a base frame, and a first damper is symmetrically installed on the top of the base frame. The outer ends of the two first dampers are fixedly connected to the mounting frame, and the outer surface of the mounting frame is fixedly connected to an extension plate extending outward, and 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 the two mounting 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, and 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, and each group of lower buffer mechanisms 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 upwardly extending connecting plates, and an upper rod is sleeved between the outer surfaces of the two connecting plates near the top, multiple connecting plates are of the same length and are arranged in parallel, the outer surfaces of the two upper rods are movably connected to the second rotating seat 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 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 to 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 conflict 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 fixing seats, the two fixing 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 fixing 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 fixedly connected to the opposite surfaces of the two support plates respectively, 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 the two adjacent upper rods, and a fourth spring is sleeved on the outside of the second sliding rod, and both ends of the fourth spring respectively conflict with the outer surfaces of the connecting beam and the mounting plate, and a fourth damper is fixedly installed between one of the mounting plates and the outer surface of 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 part passes through the hollow cavity of the chassis 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 chassis drops. The insufficient length of the steel cable causes the first damper to contract. The extension plate puts pressure on 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 alleviating effect, thereby improving the service life of the shock absorbing mechanism below and the performance and life of the dry-type transformer.

[0019] 2. When the present invention is in use, 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 of the circle. 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, it pushes the third damper to reset, supports the connecting plate and absorbs vibration energy. When the connecting plate tilts, the distance between adjacent connecting plates changes, and the mounting rod drives the second damper and the second spring to expand and contract, 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 alleviate vibration. The inclined buffer structure disperses stress evenly, adapts to multi-angle vibration, has excellent vibration alleviation effect, and ensures the reliability and service life of the transformer body during long-term use.

[0020] 3. When the present invention is in use, when the transformer body generates vibration and rocks back and forth during operation, the two support plates and the connecting beam will rock back and forth. When the connecting beam rocks back and forth, the fourth spring and the fourth damper between the connecting beam and the mounting plate will buffer and absorb energy by expansion and contraction, thereby effectively offsetting the vibration energy of the back and forth rocking of the transformer body during vibration, thereby alleviating the vibration in the front and rear directions. In conjunction with the lower buffer mechanism and the oblique push assembly below, it can alleviate the multi-directional vibration of the transformer body, thereby greatly improving the shock absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a vibration mitigation structure for a dry-type transformer according to 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 3This is a schematic structural diagram of a bracket assembly of a dry-type transformer vibration relief structure according to the present invention;

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

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

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

[0027] Figure 7 This is a schematic structural diagram of a transverse buffer mechanism of a dry-type transformer vibration relief structure according to the present invention;

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

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

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

[0031] Figure 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. Pressing 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, transverse 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 clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1-11As 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, wherein bracket assemblies 2 are installed at the bottom of the base plate 11 near both sides, and a lower buffer mechanism 5 and an oblique push assembly 6 are installed on the top of the base plate 11 to relieve the vibration generated during the operation of the transformer body 1, a lateral buffer mechanism 7 is provided on the outside of the lower buffer mechanism 5 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, and an upper pull mechanism 4 is provided between the upper buffer mechanism 3 and the bracket assembly 2, and the upper pull 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 pulling mechanism 4 includes a steel cable 401, and an annular fastening head 402 is provided at both ends of the steel cable 401. The inner end of the fastening head 402 is provided with a fastener 403 for fastening. The upper buffer mechanism 3 includes a base frame 301, and the top of the base frame 301 is symmetrically mounted with a first damper 305. The outer ends of the two first dampers 305 are fixedly connected to the mounting frame 306. The outer surface of the mounting frame 306 is fixedly connected to an outwardly extending extension plate 308, and the outer surface of one of the extension plates 308 is fixedly connected to a first slide rod 309, and one end of the first slide rod 309 slides through the outer surface of the other extension plate 308. , the first slide bar 309 is externally provided with a first spring 310 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, the top of the lower beam 201 is symmetrically welded and fixed with longitudinal beams 202 near the two ends, 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 an X-shaped fastening frame 205, and the inner surface walls of the two longitudinal beams 202 are installed near the top position. 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, 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 the two mounting frames 306. The outer surface of the base frame 301 is 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 interior of the mounting frame 306 is symmetrically connected to 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-changing transformer, which is wrapped with a protective shell on the outside, and the outside of the protective shell is provided with heat dissipation fins, with ventilation on both sides, and the heat dissipation method is natural air cooling and forced air cooling. The main weight of the entire device is borne by the bottom plate 11, the lower buffer mechanism 5 and the inclined push assembly 6 below, and the two longitudinal beams 202 are mainly used to install the steel cable 401. After the two ends of the steel cable 401 are wound back and fixed by fasteners 403, a ring-shaped fastening head 402 is formed and 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 base frame 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 and fall. At this time, the path length of the steel cable 401 is insufficient, so the mounting frame 306 will squeeze the first damper 305 to make it shrink. In the process, the two extension plates 308 will put pressure on 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 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 buffering and shock-absorbing mechanism has a good auxiliary effect, greatly improving the service life of the shock-absorbing mechanism below the dry-type transformer body 1, and laterally improving 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, and plays a role in guiding the steel cable 401, and converts 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 play an effect of converting the sliding friction between the steel cable 401 and the inner wall of the installation frame 306 into rolling friction. The mutual cooperation 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] Example 2: Figures 1-11As 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 seat 501, and both ends of the lower rod 502 are sleeved with a connecting plate 503 extending upward, and an upper rod 504 is sleeved between the outer surfaces of the two connecting plates 503 near the top. The multiple 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 to a second rotating seat 512 near the middle position, and the tops of the two second rotating seats 512 are fixed between them. The 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. 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. 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. The surfaces are respectively connected to the first rotating head 508 and the second rotating head 509, and the 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 sheathed with a second spring 511 on the outer side of the second damper 510, 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 tilted 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. 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. 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. 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 first rotating seat 501 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 sets of connecting plates 503 with symmetrical front and rear positions. The number of each set of connecting plates 503 is two, and the lengths and inclination angles of all connecting plates 503 are the same. Therefore, the four rotation points of any two adjacent connecting plates 503 on the same side will form a parallelogram, thereby making the support plate 513 for installing and supporting the transformer body 1 above always in a horizontal state. When in use, when the transformer body 1 vibrates up and down during operation, the support plate 513 will swing up and down. During this process, the connecting plate 503 will rotate left and right as the center of the circle of the lower rod 502, and the parallelogram structure formed by the cooperation of multiple sets 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 contract and compress the third spring 605. After the compressed third spring 605 is released, it pushes the third damper 604 to return to its original position, 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. During 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 energy absorption. 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 expanding and contracting. This inclined buffer structure disperses stress more evenly and adapts to multi-angle vibration. It has an excellent vibration alleviation effect, thereby ensuring the reliability and service life of the transformer body 1 during long-term use.

[0038] Example 3: Figures 1-11 As shown, the lateral buffer mechanism 7 includes a connecting beam 701, and connecting plates 702 are welded and fixed at both ends of the connecting beam 701. The two connecting plates 702 are fixedly connected to the opposite surfaces of the two support plates 513 respectively. 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 the two adjacent upper rods 504. The outside of the second slide bar 705 is sleeved with a fourth spring 706. The two ends of the fourth spring 706 respectively conflict with the outer surfaces of the connecting beam 701 and the mounting plate 703. A fourth damper 704 is fixedly installed between one of the mounting plates 703 and the outer surface of 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 back and forth. When the transformer body 1 generates vibration 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 buffer and absorb energy by expansion and contraction, 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. Cooperating with the lower buffer mechanism 5 and the oblique push 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-changing transformer, which is wrapped with a protective shell on the outside, and the outside of the protective shell is provided with heat dissipation fins, with ventilation on both sides, and the heat dissipation method is natural air cooling and forced air cooling. The main weight of the entire device is borne by the bottom plate 11, the lower buffer mechanism 5 and the inclined push assembly 6 below, and the two longitudinal beams 202 are mainly used to install the steel cable 401. After the two ends of the steel cable 401 are wound back and fixed by fasteners 403, a ring-shaped fastening head 402 is formed and 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 base frame 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 two first dampers 305 ends on the base frame 301 to extend, thereby extending the overall lifting path of the steel cable 401. When the transformer body 1 moves downward during vibration, the base frame 301 will follow and fall. At this time, the path length of the steel cable 401 is insufficient, so the mounting 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. 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 a The third damper 605 is compressed and compressed, and the compressed third spring 605 is released and pushes the third damper 604 to return to its original position, 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 will alleviate vibration by expanding and contracting. This inclined buffer structure disperses stress more evenly and adapts to multi-angle vibrations, having an excellent vibration alleviation effect, thereby ensuring the reliability and service life of the transformer body 1 during long-term use. When the transformer body 1 vibrates and sways back and forth during operation, the two support plates 513 and the connecting beam 701 will sway back and forth. When the connecting beam 701 sways 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 expanding and contracting, thereby effectively offsetting the vibration energy of the transformer body 1 swaying back and forth during vibration, thereby alleviating the vibration in the front-to-back direction. In conjunction with the lower buffer mechanism 5 and the oblique push assembly 6 below, it alleviates 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 scope of protection of the present invention.

Claims

1. A dry-type transformer vibration mitigation structure, comprising a transformer body (1) and a base plate (11), characterized in that: The bottom of the base plate (11) is provided with support assemblies (2) near both sides, and the top of the base plate (11) is provided with a lower buffer mechanism (5) and an oblique push assembly (6) that cooperate with each other to relieve vibration generated during the operation of the transformer body (1). A transverse buffer mechanism (7) is provided outside the lower buffer mechanism (5) to provide transverse buffering for the transformer body (1). An upper buffer mechanism (3) is symmetrically provided on the top of the transformer body (1), and an upper pull mechanism (4) is provided between the upper buffer mechanism (3) and the support assembly (2). The upper pull mechanism (4) cooperates with the upper buffer mechanism (3) to play a role in hoisting the transformer body (1) and offsetting the downward pressure. 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); The upper buffer mechanism (3) includes a base frame (301), a first damper (305) is symmetrically mounted on the top of the base frame (301), the outer ends of the two first dampers (305) are fixedly connected to a mounting frame (306), the outer surface of the mounting frame (306) is fixedly connected to an outwardly extending extension plate (308), the outer surface of one extension plate (308) is fixedly connected to 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 outer portion of the first slide bar (309) at a position between the two extension plates (308); A hollow cavity (302) is provided inside the base frame (301), and the outer surface of the steel cable (401) passes through the inside of the hollow cavity (302) and the inside of the two mounting frames (306). Connecting shafts (303) are connected to the outer surface of the base frame (301) near the front and rear side edges.

2. The dry-type transformer vibration mitigation structure according to claim 1, characterized in that: The number of the bracket assemblies (2) is set to two, each including 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 to two fastening bolts (203), the outer surfaces of the four fastening bolts (203) being fixedly connected to 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, characterized in that: The fastening head (402) is sleeved on the outside of the connecting bolt (204), and the outer surface of the steel cable (401) passes through the outer surface of the longitudinal beam (202).

4. The dry-type transformer vibration mitigation structure according to claim 3, characterized in that: 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) at a position close to the bottom. The interior of the mounting frame (306) is symmetrically rotatably connected to a guide wheel (307). The groove wall 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, characterized in that: 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), 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 a connecting plate (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, 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 to 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). A mounting rod (506) is rotatably inserted at a position near the bottom between the outer surfaces of two connecting plates (503) and a position near the top between the outer surfaces of the other two connecting plates (503). Both ends of the two mounting rods (506) are threadedly connected to 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 outer side of the body of the second damper (510), and both ends of the second spring (511) are in contact with the outer surfaces of the first rotating head (508) and the second rotating head (509), respectively; and 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 fixing seats (601), the two fixing seats (601) being fixedly connected to the top of the base plate (11) and being located away from the lower buffer mechanism (5), a fixing rod (602) being installed between the outer surfaces of the two fixing seats (601) via bolts, the outer surfaces of the fixing rods (602) being rotatably connected to two third rotating heads (603), the tops of the third rotating heads (603) being installed with third dampers (604), the tops of the third dampers (604) being installed with fourth rotating heads (606), the fourth rotating heads (606) being rotatably connected to the outer surface of one of the upper rods (504), and a third spring (605) being fixedly connected between the outer surfaces of the fourth rotating heads (606) and the third rotating heads (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) being fixedly connected to the opposite surfaces of the two support plates (513), the front and rear outer surfaces of the connecting beam (701) being fixedly connected to second slide bars (705) near the top, and the outer surfaces of the two second slide bars (705) being 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) respectively contact the outer surfaces of the connecting beam (701) and the mounting plates (703), and a fourth damper (704) is fixedly installed between one of the mounting plates (703) and the outer surface of the connecting beam (701).

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