A marine transformer with an impact-resistant structure

Abstract

The present invention relates to the technical field of transformers, and specifically to a marine transformer with an anti-impact structure, which includes a transformer main body, a base, and a buffer box. It is characterized in that: the transformer main body is horizontally and limitedly installed on the base through a movable frame, and a buffer spring is provided between the two to absorb the fine vibrations during ship navigation; the buffer box is softly connected to the top of the transformer main body through a support spring to adjust the oil volume of the transformer main body; a dynamic locking mechanism composed of a floating frame and a movable ball is provided inside the base, and the movable ball supports the floating frame so that the transformer main body can freely buffer vibrations. When the ship tilts significantly, the movable ball shifts and the floating frame moves downward; an oil liquid fluctuation protection structure composed of an arc-shaped panel and a movable rod is provided on the inner wall of the buffer box. When the oil liquid shakes violently, it pushes the movable rod to move outward, and the linkage lever-type support rod makes the bottom rubber wheel abut against the ground to form a lateral support; the purpose of improving the anti-impact ability of the oil-immersed transformer for marine use is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and specifically to a marine transformer with an anti-shock structure. Background Technique

[0002] In a ship's power system, as a key power equipment, the transformer faces the severe challenges unique to the marine environment. The ship has limited space, requiring the power equipment to be structurally compact and efficiently installed; at the same time, the marine environment has high humidity and large salt content, demanding extremely high protection performance for the equipment. In addition, during the ship's navigation, various complex sea conditions will be encountered, resulting in violent swaying, vibration, and even impact of the hull, and these mechanical stresses pose a serious threat to the reliability of electrical equipment such as transformers.

[0003] Currently, marine transformers are mainly divided into two categories: dry-type and oil-immersed. Dry-type transformers have good fire prevention performance and are more commonly used on ships, but their heat dissipation ability is limited and their performance is poor; while traditional oil-immersed transformers have excellent heat dissipation performance and strong performance, but their anti-shock ability is poor, so they are prone to cause safety hazards during the ship's navigation.

[0004] Currently, the anti-shock structures of transformers mostly use buffer components to absorb shock energy, and pay more attention to resisting the fine vibrations generated during the ship's navigation. However, when dealing with the severe inclination of the ship, due to the installation of the buffer components, the stability of the transformer is poor, and it is more likely to cause deformation of the transformer structure. At the same time, for oil-immersed transformers, the risks brought by the impact are more complex. Since it is necessary to control the amount of oil inside the transformer according to environmental changes, a semi-full fuel tank structure is usually set on the transformer. When the ship inclines, the transformer oil in the fuel tank structure shakes violently, which will impact the inner wall of the fuel tank and cause it to deform and damage, forming a fire hazard. Summary of the Invention

[0005] The purpose of the present invention is to provide a marine transformer with an anti-shock structure to achieve the purpose of improving the anti-shock ability of oil-immersed transformers for marine use, and to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A marine transformer with an anti-shock structure, including a transformer main body, a base, and a buffer tank, characterized in that: the transformer main body is horizontally limited and installed on the base through a movable frame, and a buffer spring is provided between the two to absorb the fine vibrations during the ship's navigation;

[0007] The buffer tank is softly connected to the top of the transformer main body through a support spring to adjust the oil amount of the transformer main body, and the buffer tank can be restricted by the transformer main body after moving downward;

[0008] A dynamic locking mechanism consisting of a floating frame and a movable ball is provided inside the base. The movable ball supports the floating frame so that the transformer body can freely buffer vibration. When the ship tilts significantly, the movable ball deflects and causes the floating frame to move downward, and the conical clamping column on it limits the movement of the movable frame.

[0009] The inner wall of the buffer box is provided with an oil fluctuation protection structure composed of an arc panel and a movable rod. When the oil shakes violently, the movable rod is pushed outward, and the lever-type support rod is linked to make the bottom rubber wheel contact the ground to form lateral support, and at the same time, the alignment rod on the transformer body is compressed to form a triangular stable structure;

[0010] An inclined panel is provided at the bottom of the buffer box. When the transformer is tilted, the pressure block at the top of the alignment rod acts on the inclined panel to push the buffer box downward.

[0011] Preferably, the floating frame adopts a cross-shaped structure, with conical clamping columns arranged around it and a conical bottom bracket arranged in the middle;

[0012] The movable ball is suspended by an elastic rubber rope. When the ship vibrates slightly, the floating frame is kept high so that the transformer body can buffer freely. When the ship tilts sharply, the movable ball slides so that the conical clamping column limits the movement of the movable frame.

[0013] Preferably, the buffer box forms an adjustable limit structure through a conical plug rod and a limit seat;

[0014] The elasticity of the support spring enables the buffer box to float and buffer vibration during normal operation, while the conical plug rod penetrates into the through hole of the limit seat to achieve rigid locking during severe impact.

[0015] Preferably, the oil surge protection structure includes four symmetrically arranged arc panels, whose arc surfaces face inward to disperse the impact force of the oil, and the outer end of the movable rod is connected to the return spring and the ball head.

[0016] Preferably, the support rod adopts a lever structure to amplify the impact force of the oil fluctuation in the buffer box. When the movable rod moves outward, the ball head can push the top of the support rod so that the rubber wheel at the bottom of the support rod contacts the ground to form auxiliary support, thereby improving the anti-dumping ability.

[0017] Preferably, the alignment rod is adjustably installed through a telescopic rod, and can be compressed to form a triangular support structure when the rubber wheel moves, and the pressure block on the top of the alignment rod cooperates with the inclined panel at the bottom of the buffer box to automatically level the relative position of the buffer box and the transformer body in a tilted state.

[0018] Preferably, a lower stopper is installed on the transformer body, and an upper stopper is installed on the buffer box;

[0019] The upper block and the lower block are aligned in the normal state. When the transformer is tilted, the compression of the alignment rod keeps the two coplanar, so that the buffer box is consistent with the transformer body.

[0020] Preferably, the buffer box is used to replenish and recover the oil in the transformer body and control the oil pressure therein, and the weight balance of the buffer box is arranged to be located directly above the transformer body;

[0021] An oil pipe is provided on the transformer body, and the oil pipe is connected to the buffer box through a corrugated joint at the top.

[0022] Preferably, the buffer box is arranged on a support on the top surface of the transformer body, and a limit seat is arranged on the top of the support, and the through hole is a circular hole, the conical plug rod is arranged through the through hole, and an end block is arranged at the bottom end of the conical plug rod to prevent it from falling off.

[0023] Preferably, an axle seat is fixedly installed at the bottom of the transformer body, a lever-type support rod is rotatably installed through the axle seat, and the top of the support rod is located on the side of the ball head, the axle seat is installed on the mounting seat on the side of the transformer body, and a telescopic rod is movably installed in the mounting seat, and a vertical alignment rod is installed through the telescopic rod, and the alignment rod is an L-shaped structure, which is located on the side of the support rod.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. While maintaining the efficient heat dissipation performance of the wet transformer, the present invention significantly improves its anti-impact, anti-tilt and self-stabilization capabilities under complex ship working conditions. It is suitable for various ship power systems, and its anti-impact and anti-tilt capabilities are enhanced. Through the dynamic locking mechanism of the floating frame and the movable ball, the transformer maintains its buffering capacity when the ship vibrates slightly, and automatically locks when it tilts significantly to prevent structural dislocation or tipping.

[0026] 2. Optimized for oil impact, an oil fluctuation protection structure consisting of a curved panel and a movable rod is set in the buffer box to effectively disperse the impact force of oil shaking and avoid damage to the inner wall of the oil tank. At the same time, the support rod is linked to form an active stabilization system to improve the anti-dumping ability.

[0027] 3. The present invention has the ability of dynamic limiting and automatic leveling. Through the cooperation of the conical plug rod, the limit seat and the alignment rod, the overall rigidity is enhanced in the event of severe impact. At the same time, the inclined plate and the pressure block are used to automatically adjust the position of the buffer box to maintain the stable alignment of the transformer body and the buffer box. The overall design takes into account both buffering and rigid locking functions, and is suitable for the narrow space of ships. While ensuring the impact resistance, it avoids the oil leakage or structural deformation of traditional oil-immersed transformers caused by impact. The support rod and the alignment rod form a triangular stable structure, which automatically triggers the lateral support when severe shaking of the oil is detected to prevent the transformer from tipping over as a whole, thereby improving navigation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the transformer main body and buffer tank structure of the present invention.

[0030] Figure 3 This is a schematic diagram of the transformer main body structure of the present invention.

[0031] Figure 4 This is a schematic diagram of the base structure of the present invention.

[0032] Figure 5 This is a schematic diagram of the floating frame and rolling ball structure of the present invention.

[0033] Figure 6 This is a schematic diagram of the buffer tank structure of the present invention.

[0034] Figure 7 This is a schematic diagram of the internal structure of the buffer tank of the present invention.

[0035] Figure 8 This is a schematic diagram of the support rod and alignment rod structure of the present invention.

[0036] Figure 9 This is a schematic diagram of the support rod structure of the present invention.

[0037] Figure 10 This is a schematic diagram of the alignment rod structure of the present invention.

[0038] In the figure: 1. Transformer main body; 2. Base; 3. Fixed feet; 4. Movable frame; 5. Buffer spring; 6. Inner frame; 7. Rubber cord; 8. Movable ball; 9. Floating frame; 10. Conical bottom support; 11. Conical clamping column; 12. Support; 13. Limit seat; 14. Through hole; 15. Buffer tank; 16. Conical insertion rod; 17. End block; 18. Support spring; 19. Oil pipe; 20. Corrugated joint; 21. Movable rod; 22. Arc-shaped panel; 23. Ball head; 24. Return spring; 25. Axle seat; 26. Support rod; 27. Rubber wheel; 28. Mounting seat; 29. Telescopic rod; 30. Alignment rod; 31. Lower stop block; 32. Upper stop block; 33. Pressing block; 34. Inclined panel. Specific embodiments

[0039] Next, in combination with the accompanying drawings and specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments. It should be known that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0040] Please refer to Figures 1 to 10, the present invention provides a technical solution: a marine transformer with an impact-resistant structure. This marine transformer adopts an oil-immersed transformer, and its transformer main body 1 is installed on a base 2. The bottom of the base 2 is provided with fixing feet 3, which are made of metal profiles and can be fixed on the ship's floor to install the transformer.

[0041] As Figures 1 - 5 shown, a movable frame 4 is provided at the bottom of the transformer main body 1. The transformer main body 1 is installed in the base 2 in a limited and movable manner through the movable frame 4, having the ability to move horizontally. A buffer spring 5 is connected between the movable frame 4 and the base 2 to limit the movement through the buffer spring 5 and absorb fine vibrations, preventing the vibrations of the ship from affecting the stability of the internal circuits of the transformer main body 1. At the same time, an inner frame 6 is also provided in the middle of the base 2, and an adjustable limiting mechanism is provided thereon to limit the movable range of the movable frame 4. This limiting mechanism includes a floating frame 9 installed in the base 2 in a lifting manner. The floating frame 9 is in a cross-shaped structure, with four conical clamping columns 11 installed around it and a conical bottom support 10 provided in the middle. The limiting mechanism also includes a movable ball 8 provided in the inner frame 6. The movable ball 8 is restricted in the middle of the inner frame 6 through the rubber ropes 7 around it, located below the conical bottom support 10, and can jack it up. At this time, the floating frame 9 is in a high position, and the conical clamping columns 11 will not affect the movement of the movable frame 4, enabling it to more effectively resist fine vibrations. If the ship tilts greatly, causing the base 2 to tilt, the movable ball 8 can move under the action of its own gravity, overcoming the elastic force of the rubber ropes 7 and moving away from below the conical bottom support 10. The floating frame 9 can move downward. An elastic member is connected to the floating frame 9. After it moves downward, the thicker part of the conical clamping columns 11 enters between the movable frame 4 and the inner frame 6 to limit the movable frame 4 from all around, making it difficult to move. In the case of severe tilting of the transformer, it is ensured that the transformer main body 1 and the base 2 will not be misaligned, avoiding structural deformation and overall tipping.

[0042] As Figure 6 shown, the transformer main body 1 of the present invention is filled with transformer oil. At the same time, a buffer tank 15 is provided at the top for storing the oil. The buffer tank 15 can supplement and recycle the oil in the transformer main body 1 and control the oil pressure inside it. The buffer tank 15 is set with weight balance and is located directly above the transformer main body 1 to avoid tilting to one side. The buffer tank 15 is provided on the support 12 on the top surface of the transformer main body 1.

[0043] Further, a limit seat 13 is provided at the top of the support 12, and a circular through hole 14 is provided in the middle of the limit seat 13. A conical insertion rod 16 is provided at the bottom of the buffer box 15. The conical insertion rod 16 passes through the through hole 14. A end block 17 is also provided at the bottom end of the conical insertion rod 16 for anti-disengagement restriction. A support spring 18 is connected between the buffer box 15 and the limit seat 13. The elastic coefficient of the support spring 18 is designed according to the expected impact level of the ship. Therefore, the buffer box 15 is also installed on the transformer main body 1 by soft support. It can also filter out fine vibrations through the support spring 18. And as the depth of the conical insertion rod 16 entering the through hole 14 increases, the moving range of the buffer box 15 becomes smaller until it is completely restricted by the limit seat 13 and will not generate relative displacement with the transformer main body 1. An oil pipe 19 is provided on the transformer main body 1. The oil pipe 19 is connected to the buffer box 15 through a corrugated joint 20 at the top, which can meet the movement needs of the buffer box 15.

[0044] As Figure 7 shown, the transformer oil in the buffer box 15 is in a semi-full state, and a structure for protecting against oil fluid fluctuations is also provided therein. This structure includes a movable rod 21 that is hermetically installed through the inner wall of the buffer box 15. An arc-shaped panel 22 is fixedly installed at the inner end of the movable rod 21, and a ball head 23 is provided at the outer end. A return spring 24 is connected to the ball head 23. Four arc-shaped panels 22 are provided around the buffer box 15, and their arc surfaces face inward. When the transformer tilts at a large angle along with the ship, the oil fluid in the buffer box 15 sloshes, and the generated impact will not directly act on the inner wall of the buffer box 15, avoiding damage to the buffer box 15. Instead, the impact acts on the arc-shaped panel 22, enabling the movable rod 21 to move against the elastic force of the return spring 24.

[0045] As Figure 8 、 Figure 9As shown, further, the bottom of the transformer body 1 of the present invention is fixedly installed with an axle seat 25, and a lever-type support rod 26 is rotatably installed through the axle seat 25. The top of the support rod 26 is located on the side of the ball head 23, and the bottom of the support rod 26 is installed with a rubber wheel 27. When the buffer box 15 tilts to one side, the impact of the oil causes the movable rod 21 on this side to move outward, and the ball head 23 can push the top of the support rod 26, and the thrust is amplified by the lever-type support rod 26. The rubber wheel 27 at the bottom of the support rod 26 contacts the ground, which can be used to change the transformer. The side of the transformer generates corresponding support, which effectively prevents the transformer from tipping over as a whole. At the same time, the shaft seat 25 is installed on the mounting seat 28 on the side of the transformer body 1. A telescopic rod 29 is movably installed in the mounting seat 28, and a vertical alignment rod 30 is installed through the telescopic rod 29. The alignment rod 30 is an L-shaped structure, which is located on the side of the support rod 26. When the rubber wheel 27 moves, the rubber wheel 27 can compress the alignment rod 30. The support rod 26 and the alignment rod 30 form a triangular support frame structure, which further improves the stability of the transformer and ensures its safety.

[0046] like Figure 10 As shown, a lower stopper 31 is installed on the transformer body 1, and an upper stopper 32 is installed on the buffer box 15. Under normal circumstances, the surfaces of the lower stopper 31 and the upper stopper 32 are in the same vertical plane. When the alignment rod 30 is compressed toward the transformer body 1, the alignment rod 30 can compress the lower stopper 31 and the upper stopper 32 to keep them in the same plane, thereby aligning and leveling the buffer box 15 and the transformer body 1 to keep them consistent when tilted, thereby avoiding distortion between the installation structures. At the same time, a top of the alignment rod 30 is also installed There is a pressure block 33, and inclined panels 34 are arranged around the bottom surface of the buffer box 15. When the buffer box 15 tilts to one side, the shaking of the oil causes the alignment rod 30 on that side to move inward, and the pressure block 33 can act on the inclined panel 34 to generate downward pressure on the buffer box 15, so that the buffer box 15 moves toward the direction of the transformer body 1, and the depth of the tapered plug 16 entering the through hole 14 increases. The buffer box 15 is limited by the limit seat 13. In this state, the transformer body 1 and the buffer box 15 are both in a state of being restricted and unable to move, which can effectively resist impact and avoid tipping.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine transformer with an impact-resistant structure, comprising a transformer main body, a base and a buffer box, characterized in that: The transformer body is installed on the base through the horizontal limit of the movable frame, and a buffer spring is provided between the two to absorb the fine vibrations during the ship's voyage; The buffer box is softly connected to the top of the transformer body through a supporting spring to adjust the oil volume of the transformer body, and the buffer box can be restricted by the transformer body after moving downward; A dynamic locking mechanism consisting of a floating frame and a movable ball is provided inside the base. The movable ball supports the floating frame so that the transformer body can freely buffer vibration. When the ship tilts significantly, the movable ball deflects and causes the floating frame to move downward, and the conical clamping column on it limits the movement of the movable frame. The inner wall of the buffer box is provided with an oil fluctuation protection structure composed of an arc panel and a movable rod. When the oil shakes violently, the movable rod is pushed outward, and the lever-type support rod is linked to make the bottom rubber wheel contact the ground to form lateral support, and at the same time, the alignment rod on the transformer body is compressed to form a triangular stable structure; There is an inclined panel at the bottom of the buffer box. When the transformer is tilted, the pressure block at the top of the alignment rod acts on the inclined panel to push the buffer box downward; The floating frame adopts a cross-shaped structure, with conical clamping columns arranged around it and a conical bottom bracket arranged in the middle; The movable ball is suspended by an elastic rubber rope, and when the ship vibrates slightly, the floating frame is kept high so that the transformer body can be freely buffered. When the ship tilts greatly, the movable ball slides so that the conical clamping column restricts the movement of the movable frame. The buffer box forms an adjustable limit structure through a conical plug rod and a limit seat; The elasticity of the support spring enables the buffer box to float and buffer vibration during normal operation, while the conical plug rod penetrates into the through hole of the limit seat to achieve rigid locking during severe impact; The oil surge protection structure comprises four symmetrically arranged arc panels, whose arc surfaces face inwards to disperse the impact force of the oil, and the outer end of the movable rod is connected to the return spring and the ball head; The support rod adopts a lever structure to amplify the impact force of the oil fluctuation in the buffer box. When the movable rod moves outward, the ball head can push the top of the support rod, so that the rubber wheel at the bottom of the support rod contacts the ground to form auxiliary support, thereby improving the anti-dumping ability.

2. The marine transformer with an impact-resistant structure according to claim 1, characterized in that: The alignment rod is adjustably installed through a telescopic rod, and can be compressed to form a triangular support structure when the rubber wheel moves. The pressure block on the top of the alignment rod cooperates with the inclined panel at the bottom of the buffer box to automatically level the relative position of the buffer box and the transformer body in a tilted state.

3. A marine transformer with an impact-resistant structure according to claim 1, characterized in that: A lower stopper is installed on the transformer body, and an upper stopper is installed on the buffer box; The upper stopper is aligned with the lower stopper in a normal state. When the transformer is tilted, the compression of the alignment rod keeps the two in the same plane, so that the buffer box is consistent with the transformer body.

4. A marine transformer with an impact-resistant structure according to claim 1, characterized in that: The buffer box is used to replenish and recycle the oil in the transformer body and control the oil pressure therein, and the weight balance of the buffer box is arranged to be located directly above the transformer body; An oil pipe is arranged on the transformer body, and the oil pipe is connected to the buffer box through a corrugated joint at the top.

5. A marine transformer with an impact-resistant structure according to claim 1, characterized in that: The buffer box is arranged on a support on the top surface of the transformer body, and a limit seat is arranged on the top of the support, and the through hole is a circular hole. The conical plug rod is arranged through the through hole, and an end block is arranged at the bottom end of the conical plug rod for anti-dropping restriction.

6. The marine transformer with an impact-resistant structure according to claim 2, wherein: A shaft seat is fixedly installed at the bottom of the transformer body. A lever-type support rod is rotatably installed through the shaft seat, and the top of the support rod is located on the side of the ball head. The shaft seat is installed on the mounting seat on the side of the transformer body, and a telescopic rod is movably installed in the mounting seat. A vertical alignment rod is installed through the telescopic rod. The alignment rod is of an L-shaped structure and is located on the side of the support rod.

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