A combined vibration isolation device for transformer

Abstract

The present application belongs to the technical field related to transformer vibration isolation, and specifically relates to a combined vibration isolation device for transformers, which comprises: a mounting base and a supporting platform, wherein the upper ends of the mounting base near the four corners are hingedly connected with second vibration isolation supports for supporting the supporting platform, and the upper ends of the supporting platform near the four corners are provided with first vibration isolation supports for supporting the transformer box, and one-way valves are provided at one end of the air outlet pipe and the air intake pipe near the sliding groove, and when the cylindrical piston slides in a direction away from the bottom of the sliding groove, the hot air flow generated by the work inside the transformer box is sucked in through the short pipe and the air intake pipe, and then, when the cylindrical piston slides in a direction close to the bottom of the sliding groove, the cylindrical piston squeezes the hot air flow sucked in the sliding groove and discharges the hot air flow sucked in the sliding groove, and the cycle is repeated, which can greatly improve the air flow speed inside the transformer box.

Description

Technical Field

[0001] The present application belongs to the technical field related to transformer vibration isolation, and specifically relates to a combined vibration isolation device for a transformer. Background Art

[0002] Vibration isolators are elastic elements that connect equipment and foundations. They are used to reduce and eliminate the vibration force transmitted from the equipment to the foundation and the vibration transmitted from the foundation to the equipment. They are usually used at the bottom of buildings to add a layer between the building and the foundation. When vibrating, a small swing is generated, thereby achieving the effect of energy isolation. In recent years, with the improvement of people's living standards, the electricity consumption has increased rapidly, the number of transformers has increased, and the locations of transformers have been near residential areas. Many transformers are close to residential buildings. When these transformers vibrate, they are very likely to cause noise pollution, which will affect the normal life of residents.

[0003] As people's requirements for quality of life are getting higher and higher, the requirements for sound environment are gradually gaining people's attention. Usually, the noise of the transformer is caused by its own vibration, which continuously emits a roar. If the vibration is not offset in time, it is easy to cause the internal parts of the transformer to loosen or be damaged. In addition, after the transformer has been working for a long time, a large amount of hot air will accumulate inside the transformer box, and the existing transformer box has poor ventilation performance. The high temperature poses certain safety hazards to the operation of the transformer.

[0004] In view of this, the present application proposes a combined vibration isolation device for a transformer. Summary of the invention

[0005] The purpose of the present application is to provide a combined vibration isolation device for a transformer, so as to solve the problem of poor vibration isolation performance and heat dissipation performance of the existing transformer during operation as mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a combined vibration isolation device for a transformer, comprising: a mounting base, a support platform is arranged above the mounting base, the upper ends of the mounting base near the four corners are hingedly connected to second vibration isolation supports for supporting the support platform, the upper ends of the four second vibration isolation supports are hingedly connected to the lower end of the support platform, a transformer box is arranged above the support platform, and the upper ends of the support platform near the four corners are provided with first vibration isolation supports for supporting the transformer box;

[0007] A sliding groove for placing a first vibration isolation support is provided inside the support platform, an air intake pipe is connected between the transformer box and the support platform, the lower end of the air intake pipe passes through the upper end wall of the support platform and is fixedly connected to a short pipe, the transformer box and the bottom of the sliding groove are connected to the air intake pipe via the short pipe, an air outlet pipe is fixed on one side of the short pipe, one end of the air outlet pipe passes through the front end wall of the support platform, and the other end of the air outlet pipe is connected to the sliding groove.

[0008] Preferably, the second vibration isolation support includes an outer tube hingedly connected to the upper end of the mounting base and an inner rod hingedly connected to the bottom of the support platform, the inner rod is slidably sleeved inside the outer tube, and a connecting spring is fixedly connected between the inner rod and the outer tube.

[0009] Preferably, the first vibration isolation support includes two cylindrical pistons slidably sleeved inside the sliding groove, a support spring is fixedly connected between the bottom of the cylindrical piston and the bottom of the sliding groove, two fixed blocks are fixedly connected to the upper end of the cylindrical piston, and a disc is rotatably connected between the two fixed blocks via an axial rod.

[0010] Preferably, the first vibration isolation support also includes two connecting blocks fixedly connected to the upper end of the supporting platform, the two connecting blocks are rotatably connected to the supporting frame through an axle rod, a pendulum is fixedly connected between the two supporting frames, the lower end of the pendulum is provided with two arc grooves matching the disc, the upper end surfaces of the supporting frame and the pendulum are flush, and a support rod hingedly connected to the transformer box is fixedly connected at the center of the upper end of the junction between the pendulum and the supporting frame.

[0011] Preferably, the short tube and the intake pipe are in a T-shaped combination, the end of the short tube away from the sliding groove is in a closed state, the end of the short tube close to the sliding groove is in an open state, the short tube and the intake pipe are in a connected state, and the ends of the outlet pipe and the intake pipe close to the sliding groove are both provided with one-way valves.

[0012] Preferably, the one-way valve on the short pipe opens toward one side of the sliding groove, so that the gas inside the air intake pipe can only be transported to the inside of the sliding groove through the short pipe.

[0013] Preferably, the one-way valve on the air outlet pipe opens toward a side away from the sliding groove, so that the gas inside the sliding groove can only be transported to the outside of the supporting platform through the air outlet pipe.

[0014] Preferably, the air intake pipe is a corrugated hose.

[0015] Compared with the existing transformer vibration isolation technology, the present application provides a combined vibration isolation device for transformers, which has the following beneficial effects:

[0016] 1. The present application provides a first vibration isolation support for supporting the transformer box at the upper end of the support platform near the four corners. When the transformer box vibrates in the left and right directions and the transformer box fluctuates left and right, the support rod drives the pendulum to rotate on the disc with the support frame as the support, which drives the cylindrical piston to slide up and down inside the sliding groove, and quickly compresses the support spring. The cylindrical piston and the sliding groove play a damping role, suppressing the rapid vibration of the support spring, thereby achieving the effect of energy isolation and reducing the generation of noise;

[0017] Second, the present application has a second vibration isolation support that supports the support platform by hingedly connecting the upper ends of the mounting base near the four corners. When the transformer box vibrates up and down or forward and backward, the inner rod can fluctuate inside the outer cylinder, which plays a damping role, suppresses the problem of rapid and repeated vibration of the connecting spring, buffers and offsets the vibration force, and further reduces the generation of noise;

[0018] 3. The present application provides one-way valves at one end of the air outlet pipe and the air intake pipe close to the sliding groove. When the cylindrical piston slides in a direction away from the bottom of the sliding groove, the one-way valve on the short pipe opens, and the hot air flow generated by the work inside the transformer box is sucked into the sliding groove through the short pipe and the air intake pipe. Thereafter, when the cylindrical piston slides in a direction close to the bottom of the sliding groove, the cylindrical piston squeezes the hot air flow sucked inside the sliding groove. At this time, the one-way valve on the air outlet pipe opens to discharge the hot air flow sucked inside the sliding groove. This cycle is repeated, which can greatly increase the air flow speed inside the transformer box and dissipate the heat inside the transformer box during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a combined vibration isolation device for a transformer proposed in this application;

[0021] Figure 2 This is a schematic diagram of the internal planar structure of a combined vibration isolation device for a transformer proposed in this application from a left view;

[0022] Figure 3 This is a schematic diagram of the first vibration isolation support deflection and flip support structure proposed in this application;

[0023] Figure 4 This is a schematic diagram of the structure of the first vibration isolation support proposed in this application;

[0024] Figure 5This is a schematic diagram of the assembly structure of the first vibration isolation support and the support platform proposed in this application;

[0025] Figure 6 This is a schematic diagram of the distribution structure of the second vibration isolation support proposed in this application;

[0026] Figure 7 This is a schematic diagram of the structure of the second vibration isolation support proposed in this application;

[0027] In the figure: 1. transformer box; 2. first vibration isolation support; 201. support rod; 202. ornament; 203. fixed block; 204. connecting block; 205. support frame; 206. cylindrical piston; 207. disc; 208. arc groove; 3. support platform; 301. sliding groove; 4. mounting base; 5. suction pipe; 6. exhaust pipe; 7. second vibration isolation support; 701. inner rod; 702. outer cylinder; 703. connecting spring; 8. supporting spring; 9. one-way valve; 10. short pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] See also Figure 1-7 The present application provides a technical solution: a combined vibration isolation device for a transformer, comprising: a mounting base 4, a supporting platform 3 is arranged above the mounting base 4, the upper ends of the mounting base 4 near the four corners are hingedly connected to second vibration isolation supports 7 for supporting the supporting platform 3, the upper ends of the four second vibration isolation supports 7 are hingedly connected to the lower end of the supporting platform 3, under the action of the second vibration isolation supports 7, the supporting platform 3 can slightly fluctuate up and down and front and back, providing vertical and longitudinal vibration isolation effects, a transformer box 1 is arranged above the supporting platform 3, and the upper ends of the supporting platform 3 near the four corners are provided with first vibration isolation supports 2 for supporting the transformer box 1, and a lateral vibration isolation effect is provided through the first vibration isolation supports 2.

[0030] Furthermore, a sliding groove 301 is opened inside the support platform 3 for placing the first vibration isolation support 2, and an air intake pipe 5 is connected between the transformer box 1 and the support platform 3. The air intake pipe 5 is a corrugated hose that can be deformed as the transformer box 1 shakes. The lower end of the air intake pipe 5 passes through the upper end wall of the support platform 3 and is fixedly connected to a short tube 10. The transformer box 1 is connected to the bottom of the sliding groove 301 through the short tube 10, and an air outlet pipe 6 is fixed on one side of the short tube 10. One end of the air outlet pipe 6 passes through the front end wall of the support platform 3, and the other end of the air outlet pipe 6 is connected to the sliding groove 301.

[0031] Furthermore, the second vibration isolation support 7 includes an outer cylinder 702 hingedly connected to the upper end of the mounting base 4 and an inner rod 701 hingedly connected to the bottom of the support platform 3. The inner rod 701 is slidably sleeved inside the outer cylinder 702. A connecting spring 703 is fixedly connected between the inner rod 701 and the outer cylinder 702. The connecting spring 703 is used to provide support for the support platform 3 at the upper end of the inner rod 701. When the transformer box 1 vibrates up and down or forward and backward, the inner rod 701 can fluctuate inside the outer cylinder 702, which plays a damping role, suppressing the problem of rapid and repeated oscillation of the connecting spring 703, and buffering and offsetting the vibration force.

[0032] It is worth noting that the first vibration isolation support 2 includes two cylindrical pistons 206 slidably sleeved inside the sliding groove 301, a support spring 8 is fixedly connected between the bottom of the cylindrical piston 206 and the bottom of the sliding groove 301, and two fixed blocks 203 are fixedly connected to the upper end of the cylindrical piston 206, and a disc 207 is rotatably connected between the two fixed blocks 203 via an axial rod. The first vibration isolation support 2 also includes two connecting blocks 204 fixedly connected to the upper end of the supporting platform 3, and the two connecting blocks 204 are rotatably connected to a support frame 205 via an axial rod, and a pendulum 202 is fixedly connected between the two support frames 205. The lower end of the pendulum 202 is provided with two arc grooves 208 that match the disc 207. The pendulum 202 is mounted on the upper end of the disc 207 through the arc grooves 208, and the pendulum 202 is supported by the disc 207. The upper end surface of the support frame 205 and the pendulum 202 are flush, and the pendulum 202 A support rod 201 hingedly connected to the transformer box 1 is fixedly connected at the center of the upper end of the junction with the support frame 205. When the transformer box 1 vibrates in the left and right directions and the transformer box 1 fluctuates left and right, the support rod 201 drives the pendulum 202 to rotate on the disc 207 with the support frame 205 as the support, which drives the cylindrical piston 206 to slide up and down inside the sliding groove 301, quickly compressing the support spring 8. The cylindrical piston 206 and the sliding groove 301 play a damping role, thereby achieving the effect of energy isolation.

[0033] It should be noted that the short tube 10 and the intake pipe 5 are in a T-shaped combination, the end of the short tube 10 away from the sliding groove 301 is in a closed state, and the end of the short tube 10 close to the sliding groove 301 is in an open state. The short tube 10 and the intake pipe 5 are in a connected state, and the outlet pipe 6 and the intake pipe 5 are close to the sliding groove 301. Both ends are provided with a one-way valve 9, and the one-way valve 9 located on the short tube 10 opens toward one side of the sliding groove 301, so that the gas inside the intake pipe 5 can only be transported to the inside of the sliding groove 301 through the short tube 10. The one-way valve 9 located on the air outlet pipe 6 opens toward the side away from the sliding groove 301, so that the gas inside the sliding groove 301 can only be transported to the outside of the support platform 3 through the air outlet pipe 6. When the cylindrical piston 206 slides in the direction away from the bottom of the sliding groove 301, the one-way valve 9 located on the short tube 10 opens, and the hot air flow generated by the work inside the transformer box 1 is sucked into the sliding groove 301 through the short tube 10 and the air intake pipe 5. Afterwards, when the cylindrical piston 206 slides in the direction close to the bottom of the sliding groove 301, the cylindrical piston 206 squeezes the hot air flow sucked inside the sliding groove 301. At this time, the one-way valve 9 located on the air outlet pipe 6 opens to discharge the hot air flow sucked inside the sliding groove 301.

[0034] Working principle and use process of the present application: First, observe and test the transformer box 1 in operation, observe the extent of left-right fluctuation and front-back fluctuation when the transformer box 1 vibrates, and select the installation angle of the second vibration isolation support 7 and the first vibration isolation support 2. Assuming that the left-right fluctuation of the transformer box 1 is greater than (or equal to) the front-back fluctuation when it is working, the installation angle of the second vibration isolation support 7 and the first vibration isolation support 2 is as follows: Figure 1 As shown (i.e., ensuring that the swing direction of the first vibration isolation support 2 is consistent with the maximum fluctuation direction of the transformer box 1), so as to improve the ventilation efficiency of the air intake pipe 5 and the air outlet pipe 6.

[0035] During operation, when the transformer box 1 vibrates in the up and down or front and back directions, the inner rod 701 can fluctuate inside the outer tube 702, playing a damping role, suppressing the problem of rapid and repeated oscillation of the connecting spring 703, buffering and offsetting the vibration force, and effectively absorbing the vibration effect of the transformer box 1 in the up and down or front and back directions. When the transformer box 1 vibrates in the left and right directions, when the transformer box 1 fluctuates left and right, the support rod 201 drives the pendulum 202 to rotate on the disc 207 with the support frame 205 as the support, which will drive the cylindrical piston 206 to slide up and down inside the sliding groove 301, and quickly compress the support spring 8. The cylindrical piston 206 and the sliding groove 301 play a damping role, suppressing the problem of rapid and repeated oscillation of the support spring 8. One-way valves 9 are provided at one end of the air outlet pipe 6 and the air intake pipe 5 close to the sliding groove 301. When the cylindrical piston 206 slides in a direction away from the bottom of the sliding groove 301, the one-way valve 9 on the short pipe 10 opens, and the hot air flow generated by the work inside the transformer box 1 is sucked into the sliding groove 301 through the short pipe 10 and the air intake pipe 5. Thereafter, when the cylindrical piston 206 slides in a direction close to the bottom of the sliding groove 301, the cylindrical piston 206 squeezes the hot air flow sucked inside the sliding groove 301. At this time, the one-way valve 9 on the air outlet pipe 6 opens, and the hot air flow sucked inside the sliding groove 301 is discharged. This cycle can effectively isolate the transformer box 1 from vibration, greatly increase the air flow speed inside the transformer box 1, and dissipate heat inside the transformer box 1 during operation.

[0036] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A combined vibration isolation device for a transformer, characterized in that: It comprises: a mounting base (4), a supporting platform (3) being arranged above the mounting base (4), the upper ends of the mounting base (4) near four corners being hingedly connected to second vibration isolation supports (7) for supporting the supporting platform (3), the upper ends of four second vibration isolation supports (7) being hingedly connected to the lower end of the supporting platform (3), a transformer box (1) being arranged above the supporting platform (3), and first vibration isolation supports (2) for supporting the transformer box (1) being arranged at the upper ends of the supporting platform (3) near four corners; The support platform (3) is provided with a sliding groove (301) for placing the first vibration isolation support (2), an air intake pipe (5) is connected between the transformer box (1) and the support platform (3), the lower end of the air intake pipe (5) passes through the upper end wall of the support platform (3) and is fixedly connected to a short pipe (10), the transformer box (1) and the bottom of the sliding groove (301) are connected to the air intake pipe (5) via the short pipe (10), an air outlet pipe (6) is fixed on one side of the short pipe (10), one end of the air outlet pipe (6) passes through the front end wall of the support platform (3), and the other end of the air outlet pipe (6) is connected to the sliding groove (301), The second vibration isolation support (7) comprises an outer cylinder (702) hingedly connected to the upper end of the mounting base (4) and an inner rod (701) hingedly connected to the bottom of the support platform (3); the inner rod (701) is slidably sleeved inside the outer cylinder (702); a connecting spring (703) is fixedly connected between the inner rod (701) and the outer cylinder (702). The first vibration isolation support (2) comprises two columnar pistons (206) slidably sleeved inside the sliding groove (301), a support spring (8) is fixedly connected between the bottom of the columnar piston (206) and the bottom of the sliding groove (301), the upper end of the columnar piston (206) is fixedly connected to two fixed blocks (203), and a disc (207) is rotatably connected between the two fixed blocks (203) via a shaft. The first vibration isolation support (2) further comprises two connection blocks (204) fixedly connected to the upper end of the support platform (3), the two connection blocks (204) being rotatably connected to a support frame (205) via an axle rod, a pendulum (202) being fixedly connected between the two support frames (205), the lower end of the pendulum (202) being provided with two arc-shaped grooves (208) matching with the disc (207), the upper end surfaces of the support frame (205) and the pendulum (202) being flush, and a support rod (201) hingedly connected to the transformer box (1) being fixedly connected at the center of the upper end of the intersection of the pendulum (202) and the support frame (205).

2. The combined vibration isolation device for transformer according to claim 1, characterized in that: The short tube (10) and the air intake pipe (5) are combined in a T-shape; the end of the short tube (10) away from the sliding groove (301) is in a closed state, and the end of the short tube (10) close to the sliding groove (301) is in an open state; the short tube (10) and the air intake pipe (5) are in a connected state; and one end of the air outlet pipe (6) and the air intake pipe (5) close to the sliding groove (301) are both provided with a one-way valve (9).

3. The combined vibration isolation device for transformer according to claim 2, characterized in that: The one-way valve (9) located on the short tube (10) opens toward one side of the sliding groove (301), so that the gas inside the air intake pipe (5) can only be transported to the inside of the sliding groove (301) through the short tube (10).

4. The combined vibration isolation device for transformer according to claim 3, characterized in that: The one-way valve (9) located on the gas outlet pipe (6) opens toward a side away from the sliding groove (301), so that the gas inside the sliding groove (301) can only be transported to the outside of the support platform (3) through the gas outlet pipe (6).

5. The combined vibration isolation device for transformer according to claim 1, characterized in that: The air intake pipe (5) is a corrugated hose.

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