阅读说明：本技术 一种干式变压器除噪设备 (Dry-type transformer equipment of making an uproar that removes ) 是由 汤文健 于 2021-09-26 设计创作，主要内容包括：本发明属于变压器领域,具体的说是一种干式变压器除噪设备,包括机体；所述机体的外表面固定连接有散热片,所述散热片的顶部设置有盖板,所述盖板的下表面与机体的上表面固定连接。该干式变压器除噪设备通过设置支撑机构,声波震动从毛毡板传递至支撑机构,毛毡板相对机体发生轻微位移,弯杆弯曲弧度减小,弹片伸长,滚轮沿着机体的内表面和毛毡板的下表面滚动,从而带动支撑机构做出相应的调整,由于支撑机构由两个弯杆镜像交错组成,且一组弯杆的接触面固定安装有橡胶管,在支撑机构运动的过程中,橡胶管配合弯杆一起吸收噪声震动,同时又保证设备整体不会发生太大的形变,解决了传统降噪设备结构固定,吸收噪音的能力有限的问题。(The invention belongs to the field of transformers, and particularly relates to noise removing equipment for a dry-type transformer, which comprises a machine body; the outer surface of the machine body is fixedly connected with a radiating fin, the top of the radiating fin is provided with a cover plate, and the lower surface of the cover plate is fixedly connected with the upper surface of the machine body. This dry-type transformer equipment of making an uproar is through setting up supporting mechanism, sound wave vibrations are transmitted to supporting mechanism from the felt board, slight displacement takes place for the body for the felt board, the crooked radian of knee reduces, the shell fragment extension, the gyro wheel rolls along the internal surface of organism and the lower surface of felt board, thereby it makes corresponding adjustment to drive supporting mechanism, because supporting mechanism comprises two knee mirror images are crisscross, and the contact surface fixed mounting of a set of knee has the rubber tube, at the in-process of supporting mechanism motion, rubber tube cooperation knee absorbs the noise vibrations together, guarantee again simultaneously that the whole too big deformation of equipment can not take place, the equipment structure of making an uproar is fixed to the tradition of having solved, the limited problem of the ability of noise absorption.)

1. A noise eliminating device for a dry type transformer comprises a machine body (1); the method is characterized in that: the outer surface of the machine body (1) is fixedly connected with a radiating fin (2), the top of the radiating fin (2) is provided with a cover plate (3), the lower surface of the cover plate (3) is fixedly connected with the upper surface of the machine body (1), the bottom of the cover plate (3) is provided with a soft plate (4), the outer surface of the soft plate (4) is fixedly connected with the inner surface of the machine body (1), and the lower surface of the soft plate (4) is fixedly connected with a felt plate (5);

the internal surface sliding connection of felt board (5) has bottom plate (6), the surface sliding connection of felt board (5) has fly leaf (7), the last fixed surface of fly leaf (7) is connected with air inlet mechanism (8), air inlet mechanism (8) are including baffle (24), baffle (24) are along the surface linear arrangement of dead lever (23), the bottom of baffle (24) is provided with bellows (25), the bottom of bellows (25) is provided with commentaries on classics piece (26), the surface rotation of dead lever (23) bottom is connected with fixed block (27).

2. A dry-type transformer de-noising apparatus as claimed in claim 1, wherein: the outer surface of the left side of the movable plate (7) is in sliding connection with the outer surface of the felt plate (5), and the outer surface of the right side of the movable plate (7) is in sliding connection with the inner surface of the machine body (1).

3. A dry-type transformer de-noising apparatus as claimed in claim 1, wherein: the both sides of air inlet mechanism (8) are provided with air inlet duct (9), air inlet duct (9) are seted up respectively in the wall of organism (1) and felt board (5), the inside of felt board (5) is provided with oil pocket (10), oil pocket (10) are located the bottom of bottom plate, the bottom of oil pocket (10) is provided with through-hole (11), set up in the wall of felt board (5) lower surface through-hole (11), the lower surface swing joint of felt board (5) has supporting mechanism (12), the both sides of supporting mechanism (12) are provided with buffer gear (13).

4. A dry-type transformer de-noising apparatus as claimed in claim 2, wherein: the air inlet mechanism (8) comprises a filter pipe (20), the inner surface of the filter pipe (20) is fixedly connected with a sponge block (21), the lower surface of the sponge block (21) is fixedly connected with a slide rod (22), the outer surface of the bottom end of the slide rod (22) is slidably connected with a fixing rod (23), and the outer surface of the fixing rod (23) is fixedly connected with a baffle (24).

5. A dry-type transformer de-noising apparatus as claimed in claim 4, wherein: the top end of bellows (25) and the surface fixed connection of dead lever (23), the bottom of bellows (25) and the internal surface fixed connection of filter tube (20), the internal surface of commentaries on classics piece (26) and the surface fixed connection of dead lever (23), the lower surface of fixed block (27) and the internal surface fixed connection of filter tube (20).

6. A dry-type transformer de-noising apparatus as claimed in claim 3, wherein: buffer gear (13) include arc (30), the lower surface of arc (30) is connected with the internal surface fixed connection of organism (1), the internal surface swing joint of arc (30) has pendulum rod (31), the surface swing joint of pendulum rod (31) has bent plate (32), the last fixed surface of bent plate (32) is connected with compression spring (33), the top fixedly connected with plectrum (34) of compression spring (33).

7. A dry-type transformer de-noising apparatus as claimed in claim 6, wherein: the internal surface of plectrum (34) and the surface sliding connection of pendulum rod (31), plectrum (34) are the annular and arrange, the bottom of pendulum rod (31) and the internal surface swing joint of organism (1), the surface of pendulum rod (31) bottom and the internal surface sliding connection of bent plate (32), the surface of bent plate (32) both sides contacts with the internal surface of arc (30).

8. A dry-type transformer de-noising apparatus as claimed in claim 3, wherein: supporting mechanism (12) include knee (35), the internal surface of knee (35) rotates and is connected with gyro wheel (36), the surface swing joint of knee (35) has shell fragment (37), the external fixed surface of knee (35) is connected with rubber tube (38), supporting mechanism (12) are crisscross by two knee (35) mirror images and are constituteed, and the contact surface fixed mounting of a set of knee (35) has rubber tube (38).

Technical Field

The invention belongs to the field of transformers, and particularly relates to a noise removing device for a dry-type transformer.

Background

Dry-type transformers are widely used in local lighting, high-rise buildings, airports, wharf CNC machines and other places, and simply, dry-type transformers refer to transformers in which iron cores and windings are not immersed in insulating oil. The cooling method is classified into natural air cooling (AN) and forced air cooling (AF).

Because the transformer is at the during operation, the interior unit can produce the noise under electric current and mechanical motion, and the outside coupling assembling of transformer also can receive resonance influence, outwards releases high frequency noise, and noise pollution can influence resident's normal life production.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides noise removing equipment for a dry type transformer, which solves the problem that noise generated inside and outside the equipment can disturb people because the noise cannot be removed when the traditional dry type transformer is used.

(II) technical scheme

The technical scheme adopted by the invention for solving the technical problems is as follows: the noise removing equipment for the dry-type transformer comprises a machine body, wherein the outer surface of the machine body is fixedly connected with a radiating fin, the top of the radiating fin is provided with a cover plate, the lower surface of the cover plate is fixedly connected with the upper surface of the machine body, the bottom of the cover plate is provided with a soft plate, the outer surface of the soft plate is fixedly connected with the inner surface of the machine body, and the lower surface of the soft plate is fixedly connected with a felt plate;

the internal surface sliding connection of felt board has the bottom plate, the surface sliding connection of felt board has the fly leaf, the last fixed surface of fly leaf is connected with air inlet mechanism, air inlet mechanism includes the baffle, the baffle is along the surface linear arrangement of dead lever, the bottom of baffle is provided with the bellows, the bottom of bellows is provided with the commentaries on classics piece, the surface rotation of dead lever bottom is connected with the fixed block.

The outer surface of the left side of the movable plate is connected with the outer surface of the felt plate in a sliding mode, and the outer surface of the right side of the movable plate is connected with the inner surface of the machine body in a sliding mode.

The two sides of the air inlet mechanism are provided with air inlet grooves which are respectively arranged in the walls of the machine body and the felt plate, an oil cavity is arranged in the felt plate and is located at the bottom of the bottom plate, a through hole is formed in the bottom of the oil cavity and is arranged in the wall of the lower surface of the felt plate, the lower surface of the felt plate is movably connected with a supporting mechanism, and the two sides of the supporting mechanism are provided with buffer mechanisms.

The air inlet mechanism comprises a filter pipe, a sponge block is fixedly connected to the inner surface of the filter pipe, a sliding rod is fixedly connected to the lower surface of the sponge block, a fixed rod is slidably connected to the outer surface of the bottom end of the sliding rod, and a baffle is fixedly connected to the outer surface of the fixed rod.

The top end of the corrugated pipe is fixedly connected with the outer surface of the fixed rod, the bottom end of the corrugated pipe is fixedly connected with the inner surface of the filter pipe, the inner surface of the rotating block is fixedly connected with the outer surface of the fixed rod, and the lower surface of the fixed block is fixedly connected with the inner surface of the filter pipe.

Buffer gear includes the arc, the lower surface of arc and the internal surface fixed connection of organism, the internal surface swing joint of arc has the pendulum rod, the surface swing joint of pendulum rod has the bent plate, the last fixed surface of bent plate is connected with compression spring, compression spring's top fixedly connected with plectrum.

The inner surface of the shifting piece is in sliding connection with the outer surface of the swing rod, the shifting piece is arranged in an annular shape, the bottom end of the swing rod is movably connected with the inner surface of the machine body, the outer surface of the bottom of the swing rod is in sliding connection with the inner surface of the bent plate, and the outer surfaces of the two sides of the bent plate are in contact with the inner surface of the bent plate.

The supporting mechanism comprises a bent rod, the inner surface of the bent rod is rotatably connected with a roller, the outer surface of the bent rod is movably connected with an elastic sheet, the outer surface of the bent rod is fixedly connected with a rubber tube, the supporting mechanism is formed by two bent rods in a mirror image staggered mode, and the rubber tube is fixedly mounted on the contact surface of a group of bent rods.

The invention has the following beneficial effects:

1. according to the invention, through arranging the machine body, when the device is used, the dry-type transformer is placed in the machine body, the cover plate is covered, the transformer is isolated from the outside, and the transformer is isolated and sealed from the outside, at the moment, in order to meet the normal heat dissipation requirement of the transformer, outside cold air enters the machine body from the air inlet groove, and after being filtered and regulated by the air inlet mechanism, the cold air intervenes, no matter natural air cooling or forced air cooling is carried out, the gas flow required by the transformer cannot be reduced due to the limitation of the machine body, the air cooling effect cannot be reduced, and the problem that the normal air cooling of the transformer is influenced by the isolated noise reduction is solved.

2. According to the invention, the oil cavity is arranged, after the transformer is placed in the machine body, the lower surface of the transformer is in contact with and extruded with the upper surface of the bottom plate, the volume of the oil cavity is reduced under the influence of the dead weight of the transformer, the movable plate moves upwards along the inner surface of the felt plate, redundant hydraulic oil is extruded out of the through hole to a gap between the machine body and the felt plate, and finally the movable plate is jacked to the bottom of the air inlet mechanism.

3. By arranging the felt plate, when the device is used, the internal mechanism of the transformer works to generate noise, the noise is diffused and transmitted to the outer surface of the felt plate, the outer surface of the felt plate is soft and loose, the noise moves irregularly between internal fibers, the time for transmitting the noise outwards is prolonged, meanwhile, a part of energy in the noise is consumed, the noise energy and decibel which penetrate through the felt plate are reduced, the noise which is subjected to noise reduction by the felt plate enters a gap between the machine body and the felt plate, the gap is filled with hydraulic oil, the noise can reach the outside after penetrating through the hydraulic oil and the machine body, the speed for transmitting the sound by liquid is far less than that of solid transmission, the viscosity of the hydraulic oil is high, a large amount of energy is consumed when the sound wave moves inside, and under the auxiliary isolation of the cover plate and the machine body, the energy contained in the noise sound wave is greatly consumed and reduced, the decibel of the noise transmitted to the outside is reduced due to energy loss, and the problem that the traditional noise reduction equipment cannot absorb and convert the sound wave energy, and the noise reduction capability is limited is solved.

4. By arranging the air inlet mechanism, when an internal transformer needs to dissipate heat, external air flow enters the interior of the filter pipe, as the air inlet mechanism destroys the sealing effect of the equipment and reduces the influence of the air flow on noise reduction, when the air flow enters, the fixed rod drives the rotating block to rotate, as the lower surface of the rotating block and the upper surface of the fixed block are provided with the bevel connection, the rotating block moves downwards while rotating along with the relative rotation of the rotating block and the fixed block, the sliding rod extends out of the interior of the fixed rod, the corrugated pipe contracts, the air flow enters the interior of the equipment through the crack of the baffle plate, otherwise, the fixed rod rotates reversely, the sliding rod retracts into the interior of the fixed rod, the corrugated pipe extends, the space into which the air flow can enter is reduced, the filter pipe is closed, the noise transmitted from the interior of the equipment to the outside is influenced by the filter pipe and the baffle plate, the penetrating power is reduced, the sound wave vibration is transmitted to the interior of the sponge block through the sliding rod, and as the interior of the sponge is loose and porous, the energy absorption effect is better, has solved the strict problem of leakproofness requirement of making an uproar falls in traditional isolated.

5. According to the invention, by arranging the supporting mechanism, when the transformer generates noise, sound wave vibration is transmitted to the supporting mechanism from the felt plate, the felt plate slightly displaces relative to the machine body, the bent rods are influenced by the pressure of the upper and lower outer surfaces, the bending radian is reduced, the elastic pieces stretch, and the rollers roll along the inner surface of the machine body and the lower surface of the felt plate, so that the supporting mechanism is driven to make corresponding adjustment.

6. By arranging the buffer mechanism, when the noise absorbed by the support mechanism passes through the hydraulic oil and is transmitted to the buffer mechanism, the sound wave is transmitted downwards to the upper surface of the curved plate through the section of the curved plate and then is reflected upwards from the upper surface of the curved plate to the lower surface of the curved plate, the reflected sound wave is offset with the sound wave transmitted by the lower surface of the curved plate, in the area between the arc-shaped plate and the bent plate, shock waves are formed under the action of sound wave refraction, the energy of the shock waves pushes the poking sheet to slide up and down along the outer surface of the swing rod, meanwhile, the plectrum vibrates in high frequency, redundant sound waves act on the outer surface of the bent plate, the swing rod swings left and right, through the kinetic energy of turning into the pendulum rod with the noise sound wave and the gravitational potential energy of plectrum, the energy of noise is consumed, and the inside multiple reflection of buffer gear offsets, has further reduced the penetrating power of noise, has solved the relatively poor problem of traditional noise reduction equipment noise reduction effect.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of the intake mechanism of the present invention;

FIG. 4 is a schematic view of the structure of the cushioning mechanism of the present invention;

FIG. 5 is a schematic structural view of the support mechanism of the present invention;

in the figure: the air inlet structure comprises a machine body 1, cooling fins 2, a cover plate 3, a soft plate 4, a felt plate 5, a bottom plate 6, a movable plate 7, an air inlet mechanism 8, an air inlet groove 9, an oil cavity 10, a through hole 11, a supporting mechanism 12, a buffering mechanism 13, a filter pipe 20, a sponge block 21, a sliding rod 22, a fixed rod 23, a baffle 24, a corrugated pipe 25, a rotating block 26, a fixed block 27, an arc-shaped plate 30, a swinging rod 31, a bent plate 32, a compression spring 33, a shifting sheet 34, a bent rod 35, a roller 36, an elastic sheet 37 and a rubber pipe 38.

Detailed Description

A noise removing apparatus for a dry type transformer according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.

As shown in fig. 1-5, the noise removing device for the dry-type transformer according to the present invention includes a body 1; the outer surface of the machine body 1 is fixedly connected with a radiating fin 2, the top of the radiating fin 2 is provided with a cover plate 3, the lower surface of the cover plate 3 is fixedly connected with the upper surface of the machine body 1, the bottom of the cover plate 3 is provided with a soft plate 4, the outer surface of the soft plate 4 is fixedly connected with the inner surface of the machine body 1, and the lower surface of the soft plate 4 is fixedly connected with a felt plate 5;

the internal surface sliding connection of felt board 5 has bottom plate 6, and the surface sliding connection of felt board 5 has fly leaf 7, and the last fixed surface of fly leaf 7 is connected with air inlet mechanism 8, and air inlet mechanism 8 includes baffle 24, and baffle 24 is along the surface linear arrangement of dead lever 23, and the bottom of baffle 24 is provided with bellows 25, and the bottom of bellows 25 is provided with commentaries on classics piece 26, and the surface rotation of dead lever 23 bottom is connected with fixed block 27.

Through setting up organism 1, when equipment uses, put into organism 1's inside with dry-type transformer, cover apron 3, the transformer is kept apart with the external world, because the transformer is kept apart sealedly with the external world, at this moment, in order to satisfy the normal heat dissipation demand of transformer, external cold air gets into inside the organism from air inlet tank 9, through the filtration and the regulation back of air intake mechanism 8, cold air intervenes, no matter be natural air cooling or forced air cooling, the required gas flow of transformer can not receive organism 1's restriction and reduce, the air cooling effect can not descend, the isolated noise reduction of having solved, can influence the normal air cooling's of transformer problem.

The outer surface of the left side of the movable plate 7 is connected with the outer surface of the felt plate 5 in a sliding manner, and the outer surface of the right side of the movable plate 7 is connected with the inner surface of the machine body 1 in a sliding manner.

By arranging the felt plate 5, when the device is used, the internal mechanism of the transformer works to generate noise, the noise is diffused and transmitted to the outer surface of the felt plate 5, the outer surface of the felt plate 5 is soft and loose, the noise randomly moves among internal fibers, the time for transmitting the noise outwards is prolonged, and meanwhile, a part of energy inside the noise is consumed, so that the noise energy and decibel of the noise passing through the felt plate 5 are reduced, the noise after being reduced by the felt plate 5 enters a gap between the machine body 1 and the felt plate 5, the gap is filled with hydraulic oil, the noise can reach the outside after passing through the hydraulic oil and the machine body 1, the speed for transmitting the sound by liquid is far less than that of solid transmission, the viscosity of the hydraulic oil is high, a large amount of energy is consumed when the sound wave moves inside, and under the auxiliary isolation of the cover plate 3 and the machine body 1, the energy contained in the noise sound wave is greatly consumed and reduced, the decibel of the noise transmitted to the outside is reduced due to energy loss, and the problem that the traditional noise reduction equipment cannot absorb and convert the sound wave energy, and the noise reduction capability is limited is solved.

Air inlet grooves 9 are formed in two sides of the air inlet mechanism 8, the air inlet grooves 9 are respectively formed in the walls of the machine body 1 and the felt plate 5, an oil cavity 10 is formed in the felt plate 5, the oil cavity 10 is located at the bottom of the bottom plate, a through hole 11 is formed in the bottom of the oil cavity 10, the through hole 11 is formed in the wall of the lower surface of the felt plate 5, a supporting mechanism 12 is movably connected to the lower surface of the felt plate 5, and buffering mechanisms 13 are arranged on two sides of the supporting mechanism 12.

Through setting up the oil pocket 10, after the transformer was put into the inside of organism 1, the lower surface of transformer and the upper surface contact extrusion of bottom plate 6, receive the transformer dead weight influence, the volume of oil pocket 10 reduces, fly leaf 7 is along the internal surface upward movement of felt board 5, unnecessary hydraulic oil is extruded to the crack between organism 1 and the felt board 5 from through-hole 11, finally push up fly leaf 7 to the bottom of air inlet mechanism 8, at this in-process, hydraulic oil can cushion the vibrations that the noise produced, can pass through the surface of hydraulic oil transmission to fin 2 with partly transformer heat that leaks again, the external environment is finally discharged, traditional mechanical connection has been solved, the relatively poor problem of noise elimination effect.

The air inlet mechanism 8 comprises a filter pipe 20, a sponge block 21 is fixedly connected to the inner surface of the filter pipe 20, a sliding rod 22 is fixedly connected to the lower surface of the sponge block 21, a fixing rod 23 is slidably connected to the outer surface of the bottom end of the sliding rod 22, and a baffle 24 is fixedly connected to the outer surface of the fixing rod 23.

By arranging the air inlet mechanism 8, when the internal transformer needs to dissipate heat, external air flow enters the inside of the filter pipe 20, as the air inlet mechanism destroys the sealing effect of the equipment, and in order to reduce the influence of the air flow on noise reduction, when the air flow enters, the fixed rod 23 drives the rotating block 26 to rotate, as the lower surface of the rotating block 26 and the upper surface of the fixed block 27 are provided with inclined openings, the rotating block 26 moves downwards while rotating along with the relative rotation of the two, the sliding rod 22 extends out of the inside of the fixed rod 23, the corrugated pipe 25 contracts, the air flow enters the inside of the equipment through the gap of the baffle plate 24, otherwise, the fixed rod 23 rotates reversely, the sliding rod 22 retracts into the inside of the fixed rod 23, the corrugated pipe 25 extends, the space where the air flow can enter is reduced, the filter pipe 20 is closed, the noise transmitted outwards from the inside of the equipment is influenced by the filter pipe 20 and the baffle plate 24, the penetrating power is reduced, and the sound wave vibration is transmitted to the inside of the sponge block 21 through the sliding rod 23, because sponge is loose and porous inside, the energy-absorbing effect is better, has solved the problem that the leakproofness of making an uproar strictly required is fallen to traditional isolated.

The baffle 24 is linearly arranged along the outer surface of the fixed rod 23, the corrugated pipe 25 is arranged at the bottom of the baffle 24, the top end of the corrugated pipe 25 is fixedly connected with the outer surface of the fixed rod 23, the bottom end of the corrugated pipe 25 is fixedly connected with the inner surface of the filter tube 20, the rotating block 26 is arranged at the bottom of the corrugated pipe 25, the inner surface of the rotating block 26 is fixedly connected with the outer surface of the fixed rod 23, the outer surface of the bottom end of the fixed rod 23 is rotatably connected with the fixed block 27, and the lower surface of the fixed block 27 is fixedly connected with the inner surface of the filter tube 20.

The buffer mechanism 13 comprises an arc-shaped plate 30, the lower surface of the arc-shaped plate 30 is fixedly connected with the inner surface of the machine body 1, the inner surface of the arc-shaped plate 30 is movably connected with a swing rod 31, the outer surface of the swing rod 31 is movably connected with a bent plate 32, the upper surface of the bent plate 32 is fixedly connected with a compression spring 33, and the top end of the compression spring 33 is fixedly connected with a shifting piece 34.

The inner surface of the shifting sheet 34 is connected with the outer surface of the swing rod 31 in a sliding manner, the shifting sheets 34 are arranged in a ring shape, the bottom end of the swing rod 31 is movably connected with the inner surface of the machine body 1, the outer surface of the bottom of the swing rod 31 is connected with the inner surface of the bent plate 32 in a sliding manner, and the outer surfaces of two sides of the bent plate 32 are contacted with the inner surface of the bent plate 30.

By arranging the buffer mechanism 13, when noise absorbed by the support mechanism 12 passes through hydraulic oil and is transmitted to the buffer mechanism 13, sound waves are transmitted to the upper surface of the bent plate 32 through the cross section of the bent plate 30 and then are reflected to the lower surface of the bent plate 30 from the upper surface of the bent plate 32 upwards, the reflected sound waves are offset with the sound waves transmitted by the lower surface of the bent plate 30, in the area between the bent plate 30 and the bent plate 32, the sound waves are refracted to form shock waves, the energy of the shock waves pushes the poking piece 34 to slide up and down along the outer surface of the swing rod 31, meanwhile, the poking piece 34 vibrates in high frequency, redundant sound waves are acted on the outer surface of the bent plate 32, the swing rod 31 swings left and right, the energy of the noise is consumed through converting the noise sound waves into the kinetic energy of the swing rod 31 and the gravitational potential energy of the poking piece 34, multiple reflections in the buffer mechanism 13 are offset, and the penetrating power of the noise is further reduced, the problem of traditional equipment of making an uproar relatively poor in noise reduction effect is solved.

The supporting mechanism 12 comprises a bent rod 35, the inner surface of the bent rod 35 is rotatably connected with a roller 36, the outer surface of the bent rod 35 is movably connected with an elastic sheet 37, the outer surface of the bent rod 35 is fixedly connected with a rubber tube 38, the supporting mechanism 12 is formed by two bent rods 35 in a mirror-image staggered mode, and the rubber tube 38 is fixedly mounted on the contact surface of one group of bent rods 35.

Through setting up supporting mechanism 12, when the transformer produces the noise, sound wave vibrations are transmitted to supporting mechanism 12 from felt board 5, the relative organism 1 of felt board 5 takes place slight displacement, knee 35 receives the influence of surface pressure from top to bottom, the crooked radian reduces, shell fragment 37 extension, gyro wheel 36 rolls along the internal surface of organism 1 and the lower surface of felt board 5, thereby drive supporting mechanism 12 and make corresponding adjustment, because supporting mechanism 12 comprises two knee 35 mirror images are crisscross, and the contact surface fixed mounting of a set of knee 35 has rubber tube 38, at the in-process of supporting mechanism 12 motion, rubber tube 38 cooperation knee 35 absorbs the noise vibrations together, guarantee again simultaneously that the whole too big deformation can not take place for equipment, the fixed structure of traditional equipment of making an uproar has been solved, the limited problem of ability of absorbed noise.

The specific working process is as follows:

during operation, put into organism 1's inside with dry-type transformer, cover apron 3, the transformer is kept apart with the external world, because the transformer is kept apart sealedly with the external world, at this moment, in order to satisfy the normal heat dissipation demand of transformer, inside external cold air got into the organism from air inlet duct 9, through the filtration and the regulation back of air intake mechanism 8, the cold air intervenes, no matter be natural air cooling or forced air cooling, the required gas flow of transformer can not receive organism 1's restriction and reduce, the air cooling effect can not descend.

After the transformer is placed in the machine body 1, the lower surface of the transformer is in contact with and extruded with the upper surface of the bottom plate 6 and is influenced by the dead weight of the transformer, the volume of the oil cavity 10 is reduced, the movable plate 7 moves upwards along the inner surface of the felt plate 5, redundant hydraulic oil is extruded out of the through hole 11 to a gap between the machine body 1 and the felt plate 5, and finally the movable plate 7 is jacked to the bottom of the air inlet mechanism 8.

When the device is used, the internal mechanism of the transformer works to generate noise, the noise is diffused and transmitted to the outer surface of the felt plate 5, the outer surface of the felt plate 5 is soft and loose, the noise moves irregularly between internal fibers, the time for transmitting the noise outwards is prolonged, and meanwhile, a part of energy in the noise is consumed, so that the noise energy and decibel of the noise passing through the felt plate 5 are reduced, the noise after being denoised by the felt plate 5 enters a gap between the machine body 1 and the felt plate 5, the noise can reach the outside only after passing through the hydraulic oil and the machine body 1 because the gap is filled with the hydraulic oil, the speed for transmitting the sound by the liquid is far less than that of solid transmission, the viscosity of the hydraulic oil is high, a large amount of energy is consumed when the sound wave moves inside, and under the auxiliary isolation of the cover plate 3 and the machine body 1, the energy contained in the sound wave of the noise is greatly consumed, noise transmitted to the outside is also reduced in decibels due to energy loss.

When the internal transformer needs to dissipate heat, external air flow enters the inside of the filter tube 20, and as the air inlet mechanism destroys the sealing effect of the equipment, in order to reduce the influence of the air flow on noise reduction, when the air flow enters, the fixed rod 23 drives the rotating block 26 to rotate, as the lower surface of the rotating block 26 and the upper surface of the fixed block 27 are provided with the bevel mouths, the rotating block 26 moves downwards while rotating along with the relative rotation of the two, the sliding rod 22 extends out of the fixed rod 23, the corrugated tube 25 contracts, the air flow enters the inside of the equipment through the crack of the baffle plate 24, otherwise, the fixed rod 23 rotates reversely, the sliding rod 22 retracts into the inside of the fixed rod 23, the corrugated tube 25 extends, the space where the air flow can enter is reduced, the filter tube 20 is closed, the noise transmitted outwards from the inside of the equipment is influenced by the filter tube 20 and the baffle plate 24, the penetrating force is reduced, and the sound wave vibration is transmitted to the inside of the sponge block 21 through the sliding rod 23, the sponge is loose and porous inside, so that the energy absorption effect is better.

When the transformer produces the noise, sound wave vibrations are transmitted to supporting mechanism 12 from felt board 5, slight displacement takes place for felt board 5 relative organism 1, knee 35 receives the influence of surface pressure from top to bottom, the crooked radian reduces, shell fragment 37 extension, gyro wheel 36 rolls along the internal surface of organism 1 and the lower surface of felt board 5, thereby drive supporting mechanism 12 and make corresponding adjustment, because supporting mechanism 12 comprises two knee 35 mirror images are crisscross, and the contact surface fixed mounting of a set of knee 35 has rubber tube 38, at the in-process of supporting mechanism 12 motion, rubber tube 38 cooperates knee 35 and absorbs the noise vibrations together, guarantee again simultaneously that the whole too big deformation of equipment can not take place.

When noise absorbed by the supporting mechanism 12 passes through hydraulic oil and is transmitted to the buffering mechanism 13, sound waves penetrate through the cross section of the arc-shaped plate 30 and are transmitted to the upper surface of the bent plate 32 downwards, then the sound waves are reflected from the upper surface of the bent plate 32 to the lower surface of the arc-shaped plate 30 upwards, the reflected sound waves and the sound waves transmitted by the lower surface of the arc-shaped plate 30 are offset, in the area between the arc-shaped plate 30 and the bent plate 32, a shock wave is formed under the action of sound wave refraction, the energy of the shock wave pushes the poking piece 34 to slide up and down along the outer surface of the swing rod 31, meanwhile, the poking piece 34 vibrates at high frequency, redundant sound waves act on the outer surface of the bent plate 32, the swing rod 31 swings left and right, the energy of the noise is consumed through converting the noise sound waves into the kinetic energy of the swing rod 31 and the gravity of the poking piece 34, multiple times of reflection and offset inside the buffering mechanism 13, and the penetrating power of the noise is further reduced.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.