CN115798891A

CN115798891A - Dry-type power transformer and working method thereof

Info

Publication number: CN115798891A
Application number: CN202211477333.4A
Authority: CN
Inventors: 鹿玲秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-14

Abstract

The invention relates to a dry power transformer, comprising: the transformer comprises a damping device, a transformer main body, a noise reduction shell, a plurality of supporting devices, a lifting device and a control system; a noise reduction layer is arranged on the inner surface of the noise reduction shell; the damping device comprises a plurality of damping springs, a sliding rod, a supporting plate and a plurality of sliding holes; the lifting device is arranged below the supporting plate; the plurality of supporting devices are dispersedly arranged on the inner side wall of the noise reduction shell; the control system is connected with the plurality of supporting devices and the lifting device. The technical problems that how to enable the dry-type transformer to have good shock-proof and noise-reducing performance and how to enable the spring to be more convenient to replace are solved by arranging the shock-absorbing device and the lifting device.

Description

Dry-type power transformer and working method thereof

Technical Field

The invention relates to the field of dry-type power transformers, in particular to a dry-type power transformer and a working method thereof.

Background

Dry power transformers are widely used in local lighting, high-rise buildings, airports, CNC machines and other places at wharfs, and simply, dry power transformers refer to transformers in which the iron core and windings are not immersed in insulating oil.

In the prior art, the shockproof noise reduction function of most transformers is not very good, and when the transformers work, great noise can be caused due to vibration, so that the normal life and rest of residents nearby the transformers are greatly influenced, and the health of the residents is harmed. Therefore, there is a need for a dry-type power transformer that is vibration and noise resistant.

Disclosure of Invention

The invention aims to solve the technical problems of how to enable a dry-type transformer to have good vibration and noise prevention performance and how to enable a spring to be more conveniently replaced, and provides a dry-type power transformer.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a dry-type power transformer comprising: the device comprises a damping device, a transformer main body, a noise reduction shell, a plurality of supporting devices, a lifting device and a control system; a noise reduction layer is arranged on the inner surface of the noise reduction shell, and is made of sound insulation materials; the damping device comprises a plurality of damping springs, a plurality of sliding rods, a supporting plate and a plurality of sliding holes; the supporting plate is transversely arranged in the noise reduction shell; the sliding holes are through holes which are communicated up and down and are dispersedly arranged on the supporting plate; the sliding rods are vertically arranged in the noise reduction shell and respectively correspond to the sliding holes, and the upper parts of the sliding rods penetrate through the corresponding sliding holes; the damping springs are respectively sleeved on the sliding rods and are positioned below the supporting plate, the upper parts of the damping springs are connected with the supporting plate, the lower parts of the damping springs are connected with the inner bottom surface of the noise reduction shell, and the damping springs are in a compressed state; the lifting device is arranged below the supporting plate and matched with the supporting plate; the plurality of supporting devices are dispersedly arranged on the inner side wall of the noise reduction shell, arranged around the transformer main body and matched with the supporting plate; the control system is connected with the plurality of supporting devices and the lifting device. A heat dissipation structure can be added on the noise reduction shell to dissipate heat of the transformer. The lifting device is matched with the supporting plate and can lift the supporting plate. The supporting devices are matched with the supporting plate and can support the supporting plate.

When the transformer generates vibration, the vibration is guided by the sliding rod to rise and fall, so that the damping spring extends and contracts, the vibration is converted into heat, and the vibration and noise are reduced. After the damping spring is used for a long time, the elasticity of the damping spring is reduced, so that the vibration and noise prevention performance of the damping spring is weakened, and the damping spring below the transformer is most easily damaged due to the maximum pressure, but the replacement of the damping spring is very troublesome. The supporting plate is upwards lifted through the lifting device, then the supporting plate is supported through the supporting device, the sliding rod is separated from the sliding hole, then the damping spring is replaced, then the supporting device is opened, then the supporting plate is made to return to the initial position through the lifting device, and the replacement of the damping spring is completed.

Further, the lifting device comprises a hydraulic cylinder, a lifting plate and a protective layer; the hydraulic cylinder is vertically arranged below the supporting plate and is connected with the bottom of the noise reduction shell; the lifting plate is transversely arranged above the hydraulic cylinder, is positioned below the supporting plate and is fixedly connected with the telescopic end of the hydraulic cylinder, and the top surface of the lifting plate is matched with the bottom surface of the supporting plate; the top end of the sliding rod is a conical end; the lower part of the sliding hole is in an inverted funnel shape and is matched with the sliding rod; the protective layer is made of rubber materials and covers the top surface of the lifting plate. The lower part of the sliding hole is in an inverted funnel shape and is matched with the sliding rod, so that the sliding rod can enter the sliding hole more easily.

When the supporting plate descends, the supporting plate needs to be aligned, and the sliding rod enters the sliding hole. The protective layer is arranged and used for protecting the lifting plate, the friction force of the surface of the lifting plate can be enhanced, and relative movement and relative rotation between the lifting plate and the supporting plate are prevented. The top end of the sliding rod is a conical end, and the lower part of the sliding hole is in an inverted funnel shape, so that the sliding rod can enter the sliding hole more easily.

Further, the lifting device comprises an installation cavity, a plurality of connecting rods and a plurality of sliding channels; the mounting cavity is arranged at the bottom of the noise reduction shell and is positioned below the inner bottom surface of the noise reduction shell; the hydraulic cylinder is positioned in the mounting cavity; the sliding channels are vertically arranged at the bottom of the noise reduction shell, extend upwards to the inner bottom surface of the noise reduction shell and are communicated with the mounting cavity downwards; the sliding rods are respectively arranged in the sliding channels, the sliding rods are matched with the sliding channels, and the lower parts of the sliding rods are fixed with the telescopic ends of the hydraulic cylinders through connecting rods.

If it is fixed with the shell of making an uproar to fall the slide bar, through the pneumatic cylinder with the layer board lifting, make slide bar and sliding hole break away from, need the longer distance of lifting. After the supporting plate is supported by the supporting device, the hydraulic cylinder is controlled to contract to drive the sliding rod to descend, so that the sliding rod is separated from the sliding hole, the damping spring is convenient to replace, the lifting height of the hydraulic cylinder to the transformer main body can be reduced, and energy is saved.

Furthermore, a collecting surface is arranged on the inner bottom surface of the noise reduction shell, and the collecting surface is a concave cambered surface; the lifting device comprises a lifting channel; the lifting channel is vertically arranged at the bottom of the noise reduction shell, extends upwards to the collecting surface and is communicated with the mounting cavity downwards; the lifting plate is positioned in the lifting channel, the upper surface of the lifting plate is a convex cambered surface, and the middle part of the lifting plate protrudes upwards; the bottom surface of the supporting plate is provided with a matching groove which is matched with the lifting plate; the upper ports of the sliding channels are positioned in the collecting surface; the bottom surface of the inner part of the installation cavity is an inclined surface, and the lowest point of the installation cavity is communicated with the outside.

When the hydraulic cylinder contracts and drives the sliding rods to completely enter the sliding channel, the damping spring rolls down to the center under the action of the collecting surface, enters the installation cavity through the lifting channel, then rolls to the outside under the action of the bottom surface of the installation cavity, and is automatically unloaded without manually unloading the damping spring. And then the hydraulic cylinder is controlled to extend, so that the upper part of the sliding rod is exposed, and a worker can install a new damping spring conveniently.

Furthermore, the supporting device comprises a supporting rod, a propping plate and a reinforcing groove; the supporting rods are transversely arranged, the middle parts of the supporting rods are connected with the noise reduction shell through rotating shafts, one ends of the supporting rods are matched with the supporting plate, the rotating shafts of the supporting rods are connected with a rotating motor, and the rotating axes of the supporting rods are vertically arranged; the reinforcing groove is a groove, is arranged on the inner side wall of the noise reduction shell, accommodates the other end of the supporting rod and is matched with the rotating path of the supporting rod, and the inner top surface of the reinforcing groove is a horizontal plane and is connected with the supporting rod; the supporting plate is arranged above the supporting rod and fixed with the supporting rod, and a rubber layer is arranged on the inner side plane of the supporting plate and matched with the supporting plate to tightly support the supporting plate.

Only support the supporting plate, stability is weak. The supporting rod is controlled to rotate through the rotating motor, the supporting rod is enabled to rotate to the lower portion of the supporting plate to support the supporting plate, and meanwhile the plurality of abutting plates abut against the edge of the supporting plate, so that the supporting plate is enabled to be stable. The reinforcing groove is arranged and is abutted against the other end of the supporting rod, so that the pressure resistance of the supporting rod can be improved, and the rotating connecting part of the supporting rod is protected.

Furthermore, the supporting device comprises a fixing groove and an anti-drop block; the fixing groove is arranged at the side part of the supporting rod; the anticreep piece is elastic rubber material, is fixed in the fixed slot, is provided with on the anticreep piece and holds the mouth, holds the mouth and holds for the opening of upper and lower intercommunication, and the slide bar that will correspond holds, and holds the inner wall of mouth and hug closely with the slide bar, is provided with the anticreep mouth on the anticreep piece side, and the anticreep mouth is the breach, is linked together with holding the mouth, and the width of anticreep mouth is less than the diameter of slide bar.

If the transformer generates a large vibration, the up-and-down movement amplitude of the supporting plate is increased, the sliding rod may be separated from the sliding hole, and the upper part of the sliding rod is not provided with a fixing structure, so that the shaking is easily generated. Rotate through rotating motor control bracing piece, hold the slide bar into holding in the mouth through the anticreep piece, it is fixed with the slide bar, make the slide bar more stable. Wherein, in order to prevent the support rod from colliding with the sliding rod when supporting the supporting plate, the rotating angle of the support rod is smaller than that when fixing the sliding rod.

Further, the device comprises a plurality of rollers, a door plate, a limiting plate and a rotating rod; the side wall of one side of the noise reduction shell is provided with a mounting opening, the mounting opening is matched with the transformer main body, and the lower part of the mounting opening is connected with the inner bottom surface of the noise reduction shell; the door plate is arranged in the mounting opening and is adaptive to the mounting opening, the bottom of the door plate is connected with the noise reduction shell through a rotating shaft, and the rotating axis of the door plate is transversely arranged; the limiting plate is arranged on the inner side of the door plate and fixed with the noise reduction shell, and a rubber layer is arranged on the outer side face of the limiting plate and is tightly attached to the inner side face of the upper part of the door plate; the rotating rod is vertically arranged on the outer side of the door panel, the upper part of the rotating rod is connected with the noise reduction shell through a rotating shaft, the rotating axis of the rotating rod is transversely arranged, and a rubber layer is arranged on the surface of the lower part of the rotating rod and is clung to the outer side surface of the upper part of the door panel; the plurality of rollers are arranged below the supporting plate and connected with the supporting plate through the supporting frame, and the moving directions of the plurality of rollers extend to the mounting opening. The door plate can make the roller move to the external ground more easily.

When the transformer main body is damaged, a new transformer main body needs to be replaced, which is troublesome for the movement of the transformer main body. The damping springs are dismounted firstly, then the sliding rods are controlled to retract into the sliding channels, then the idler wheels are connected with the inner bottom surface of the noise reduction shell, the door plate is opened, and the transformer main body is moved through the idler wheels to move to the outside through the mounting port. The door plate is fixed through the limiting plate and the rotating rod.

Further, the device comprises a plurality of guide rails and baffles; the surface of the roller is provided with a guide groove which is an annular groove, and the axis of the guide groove is superposed with the axis of the roller; the guide rails are strip-shaped, are fixed on the inner bottom surface of the noise reduction shell and correspond to the rollers, and are arranged along the moving direction of the rollers and are matched with the guide grooves; the baffle is fixed in the inside bottom surface of making an uproar shell of falling, is in layer board side, and the height of baffle suits with the distance between layer board and the gyro wheel, and the baffle cooperatees with the layer board.

When a new transformer body is installed, alignment with the sliding rod is required. The guide rail, the guide groove and the baffle are arranged, and when the supporting plate is connected with the baffle, the sliding hole is aligned with the sliding rod. The height of the baffle is matched with the distance between the supporting plate and the roller, and the baffle is matched with the supporting plate, so that the supporting plate is positioned above the baffle when in a damping state, the supporting plate and the baffle are prevented from generating friction, the abrasion of the baffle is prevented, and the alignment precision during subsequent replacement of the transformer main body is reduced.

A working method of a dry-type power transformer is characterized in that when a spring needs to be replaced, the following steps are carried out: a1: the rotating motor is started through the control system, the supporting rod is rotated, the sliding rod is separated from the anti-falling block, then the hydraulic cylinder is controlled to extend, the lifting plate is enabled to move upwards to enter the matching groove, and the supporting plate and the transformer main body are driven to move upwards until the supporting plate is higher than the supporting rod; a2: then starting a rotating motor to enable the supporting rod to rotate to the lower part of the supporting plate, and the supporting rod is connected with the bottom surface of the supporting plate and drives the abutting plate to abut against the supporting plate; a3: then controlling the hydraulic cylinder to contract, driving the sliding rod to move downwards through the connecting rod until the sliding rod enters the sliding channel, enabling the lifting plate to enter the installation cavity, enabling the damping spring to roll down under the action of the collecting surface, enabling the damping spring to enter the installation cavity through the lifting channel, and then rolling to the outside under the action of the inner bottom surface of the installation cavity; a4: then, the hydraulic cylinder is controlled by a control system to extend, so that the sliding rods move upwards until the upper parts of the sliding rods are exposed out of the sliding channel, and then a worker opens the door plate and sleeves a plurality of new damping springs on the sliding rods respectively; a5: then through control system control pneumatic cylinder extension, drive the slide bar and rise and enter into the sliding hole, make the lifting board get into the cooperation inslot, then start the rotation motor, make bracing piece antiport, break away from with the layer board, then the initial position is got back to in the shrink of control pneumatic cylinder, and the motor rotation is rotated in the control at last, makes the bracing piece rotate, holds the slide bar through the anticreep piece.

The damping spring can be automatically unloaded, and the damping spring can be more conveniently installed.

Further, when the transformer main body is disassembled, the following steps are carried out: b1: the steps A1, A2 and A3 are sequentially carried out, then the hydraulic cylinder is controlled by the control system to extend, the lifting plate is made to ascend into the matching groove, then the rotating motor is started, the supporting rod is made to rotate and is separated from the supporting plate, and then the hydraulic cylinder is controlled to contract until the roller is connected with the inner bottom surface of the noise reduction shell; b2: and then, the door plate is opened by the staff, one side of the door plate is connected with the ground, and then the transformer main body is moved to the outside ground through the door plate.

Can put the gyro wheel automatically and fall the inside bottom surface of making an uproar shell on, conveniently remove.

The invention has the beneficial effects that:

1. the lifting device and the supporting device are arranged, so that the damping spring can be replaced more conveniently.

2. The sliding rod is connected with the hydraulic cylinder, and the damping spring can be automatically dismounted and taken out.

3. The sliding rod is fixed and limited through the supporting rod and the anti-falling block, so that the sliding rod is more stable, and the sliding rod is prevented from being separated from the sliding hole.

Drawings

FIG. 1 is a schematic cross-sectional view of a front view of a dry power transformer;

FIG. 2 is a schematic cross-sectional view of a side view of a dry-type power transformer;

FIG. 3 is a schematic top view of a support bar of the present dry power transformer;

description of reference numerals:

1. a noise reducing housing;

2. a hydraulic cylinder; 21. lifting the plate; 22. a connecting rod; 23. collecting the noodles;

3. a slide bar; 31. a damping spring;

4. a pallet; 41. a roller; 42. a mating groove; 43. a transformer main body; 44. a guide rail; 45. a baffle plate;

5. rotating the motor; 51. a support bar; 52. a propping plate; 53. an anti-drop block; 54. a reinforcing groove;

6. a door panel; 61. a limiting plate; 62. rotating the rod.

Detailed Description

The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention.

Example 1:

as shown in fig. 1 and 2, a dry-type power transformer includes: the device comprises a damping device, a transformer main body 43, a noise reduction shell 1, a plurality of supporting devices, a lifting device and a control system; a noise reduction layer is arranged on the inner surface of the noise reduction shell 1 and is made of sound insulation materials; the damping device comprises a plurality of damping springs 31, a plurality of sliding rods 3, a supporting plate 4 and a plurality of sliding holes; the supporting plate 4 is transversely arranged in the noise reduction shell 1; the sliding holes are through holes which are communicated up and down and are dispersedly arranged on the supporting plate 4; the sliding rods 3 are vertically arranged in the noise reduction shell 1 and respectively correspond to the sliding holes, and the upper parts of the sliding rods 3 penetrate through the corresponding sliding holes; the damping springs 31 are respectively sleeved on the sliding rods 3 and positioned below the supporting plate 4, the upper parts of the damping springs 31 are connected with the supporting plate 4, the lower parts of the damping springs 31 are connected with the inner bottom surface of the noise reduction shell 1, and the damping springs 31 are in a compressed state; the lifting device is arranged below the supporting plate 4 and matched with the supporting plate 4; the plurality of supporting devices are dispersedly arranged on the inner side wall of the noise reduction shell 1, arranged around the transformer main body 43 and matched with the supporting plate 4; the control system is connected with the plurality of supporting devices and the lifting device. A heat dissipation structure can be added on the noise reduction shell 1 to dissipate heat of the transformer. The lifting device is matched with the supporting plate 4 and can lift the supporting plate 4. The supporting devices are matched with the supporting plate 4 and can support the supporting plate 4. The number of the supporting devices is four; the number of the sliding holes is four; four damping springs 31.

When the transformer generates vibration, the vibration is guided by the sliding rod 3 to rise and fall, so that the damping spring 31 extends and contracts, the vibration is converted into heat, and the vibration and noise are reduced. After long-term use, the elasticity of the damping spring 31 is reduced, so that the damping and noise-reducing performance is weakened, and the damping spring 31 below the transformer is most easily damaged due to the maximum pressure, but the replacement is very troublesome. The supporting plate 4 is lifted upwards through the lifting device, then the supporting plate 4 is supported through the supporting device, the sliding rod 3 is separated from the sliding hole, then the damping spring 31 is replaced, then the supporting device is opened, then the supporting plate 4 is returned to the initial position through the lifting device, and the replacement of the damping spring 31 is completed.

The lifting device comprises a hydraulic cylinder 2, a lifting plate 21 and a protective layer; the hydraulic cylinder 2 is vertically arranged below the supporting plate 4 and is connected with the bottom of the noise reduction shell 1; the lifting plate 21 is transversely arranged above the hydraulic cylinder 2, is positioned below the supporting plate 4 and is fixedly connected with the telescopic end of the hydraulic cylinder 2, and the top surface of the lifting plate 21 is matched with the bottom surface of the supporting plate 4; the top end of the sliding rod 3 is a conical end; the lower part of the sliding hole is in an inverted funnel shape and is matched with the sliding rod 3; the protective layer is made of rubber material and covers the top surface of the lifting plate 21. The lower part of the sliding hole is in an inverted funnel shape and is matched with the sliding rod 3, so that the sliding rod 3 can enter the sliding hole more easily.

When the pallet 4 is lowered, it needs to be aligned so that the slide bar 3 enters the slide hole. The protective layer is provided to protect the lifting plate 21, and to enhance the friction force on the surface of the lifting plate 21, thereby preventing relative movement and relative rotation between the lifting plate 21 and the pallet 4. The top end of the sliding rod 3 is a conical end, and the lower part of the sliding hole is in an inverted funnel shape, so that the sliding rod 3 can enter the sliding hole more easily.

The lifting device comprises an installation cavity, a plurality of connecting rods 22 and a plurality of sliding channels; the mounting cavity is arranged at the bottom of the noise reduction shell 1 and is positioned below the inner bottom surface of the noise reduction shell 1; the hydraulic cylinder 2 is positioned in the mounting cavity; the sliding channels are vertically arranged at the bottom of the noise reduction shell 1, extend upwards to the inner bottom surface of the noise reduction shell 1, and are communicated with the mounting cavity downwards; the sliding rods 3 are respectively arranged in the sliding channels, the sliding rods 3 are matched with the sliding channels, and the lower parts of the sliding rods 3 are fixed with the telescopic ends of the hydraulic cylinders 2 through connecting rods 22. Four connecting rods 22; the slide passage is four.

If the sliding rod 3 is fixed with the noise reduction shell 1, the supporting plate 4 is lifted through the hydraulic cylinder 2, so that the sliding rod 3 is separated from the sliding hole, and the lifting is needed for a long distance. After the supporting plate 4 is supported by the supporting device, the hydraulic cylinder 2 is controlled to contract to drive the sliding rod 3 to descend, so that the sliding rod 3 is separated from the sliding hole, the damping spring 31 is convenient to replace, the lifting height of the hydraulic cylinder 2 to the transformer main body 43 can be reduced, and energy is saved.

A collecting surface 23 is arranged on the inner bottom surface of the noise reduction shell 1, and the collecting surface 23 is a concave cambered surface; the lifting device comprises a lifting channel; the lifting channel is vertically arranged at the bottom of the noise reduction shell 1, extends upwards to the collecting surface 23 and is communicated with the mounting cavity downwards; the lifting plate 21 is positioned in the lifting channel, the upper surface of the lifting plate 21 is a convex cambered surface, and the middle part of the lifting plate 21 protrudes upwards; the bottom surface of the supporting plate 4 is provided with a matching groove 42, and the matching groove 42 is matched with the lifting plate 21; the upper ports of the sliding channels are positioned in the collecting surface 23; the bottom surface of the inner part of the mounting cavity is an inclined surface, and the lowest point of the mounting cavity is communicated with the outside.

When the hydraulic cylinder 2 contracts and drives the sliding rod 3 to completely enter the sliding channel, the damping spring 31 rolls down to the center under the action of the collecting surface 23, enters the installation cavity through the lifting channel, then rolls to the outside under the action of the bottom surface of the installation cavity, the damping spring 31 is automatically unloaded, and the damping spring 31 does not need to be unloaded manually. And then the hydraulic cylinder 2 is controlled to extend, so that the upper part of the sliding rod 3 is exposed, and a worker can install a new damping spring 31 conveniently.

As shown in fig. 3, the supporting device includes a supporting rod 51, a tightening plate 52, and a reinforcing groove 54; the support rod 51 is transversely arranged, the middle part of the support rod is connected with the noise reduction shell 1 through a rotating shaft, one end of the support rod is matched with the supporting plate 4, the rotating shaft of the support rod 51 is connected with the rotating motor 5, and the rotating axis of the support rod 51 is vertically arranged; the reinforcing groove 54 is a groove, is arranged on the inner side wall of the noise reduction shell 1, accommodates the other end of the supporting rod 51, is matched with the rotating path of the supporting rod 51, and is connected with the supporting rod 51, and the inner top surface of the reinforcing groove 54 is a horizontal plane; the abutting plate 52 is arranged above the supporting rod 51 and fixed with the supporting rod 51, and a rubber layer is arranged on the inner side plane of the abutting plate 52 and matched with the supporting plate 4 to abut against the supporting plate 4.

Only the supporting plate 4 is supported, and the stability is weak. The supporting rod 51 is controlled to rotate by the rotating motor 5, so that the supporting rod 51 rotates to the lower part of the supporting plate 4 to support the supporting plate 4, and meanwhile, the 4 abutting plates 52 abut against the edge of the supporting plate 4, so that the supporting plate 4 is kept stable. The reinforcing groove 54 is provided to abut against the other end of the support rod 51, thereby improving the pressure resistance of the support rod 51 and protecting the rotation connection portion of the support rod 51.

The supporting device comprises a fixing groove and an anti-drop block 53; the fixing groove is arranged at the side part of the support rod 51; anticreep piece 53 is elastic rubber material, is fixed in the fixed slot, is provided with on the anticreep piece 53 and holds the mouth, holds the mouth and holds 3 holding of slide bar that correspond for the opening of intercommunication from top to bottom, and holds the inner wall of mouth and hug closely with slide bar 3, is provided with the anticreep mouth on the anticreep piece 53 side, and the anticreep mouth is the breach, is linked together with holding the mouth, and the width of anticreep mouth is less than the diameter of slide bar 3.

If the transformer generates a large vibration, the vertical movement range of the support plate 4 may be increased, and the sliding rod 3 may be separated from the sliding hole, and the upper portion of the sliding rod 3 may not have a fixed structure, which may easily cause a shake. Rotate through rotating motor 5 control support pole 51, hold into holding in the mouth with slide bar 3 through anticreep piece 53, it is fixed with slide bar 3, make slide bar 3 more stable. Here, in order to prevent the support rod 51 from colliding with the slide rod 3 when supporting the pallet 4, the rotation angle of the support rod 51 when supporting the slide rod 3 is smaller than the rotation angle of the support rod 51 when fixing the slide rod 3.

Comprises a plurality of rollers 41, a door panel 6, a limit plate 61 and a rotating rod 62; a mounting opening is formed in the side wall of one side of the noise reduction shell 1, the mounting opening is matched with the transformer main body 43, and the lower portion of the mounting opening is connected with the inner bottom surface of the noise reduction shell 1; the door plate 6 is arranged in the mounting opening and is matched with the mounting opening, the bottom of the door plate 6 is connected with the noise reduction shell 1 through a rotating shaft, and the rotating axis of the door plate 6 is transversely arranged; the limiting plate 61 is arranged on the inner side of the door plate 6 and fixed with the noise reduction shell 1, and a rubber layer is arranged on the outer side face of the limiting plate 61 and is tightly attached to the inner side face of the upper part of the door plate 6; the rotating rod 62 is vertically arranged on the outer side of the door panel 6, the upper part of the rotating rod 62 is connected with the noise reduction shell 1 through a rotating shaft, the rotating axis of the rotating rod 62 is transversely arranged, and a rubber layer is arranged on the surface of the lower part of the rotating rod 62 and is clung to the outer side surface of the upper part of the door panel 6; the rollers 41 are arranged below the supporting plate 4 and connected with the supporting plate 4 through a supporting frame, and the moving directions of the rollers 41 extend to the mounting opening. The door panel 6 may make it easier for the roller 41 to move to the outside ground. Four rollers 41.

When the transformer body 43 is damaged, it is necessary to replace the transformer body 43 with a new one, and it is troublesome to move the transformer body 43. Firstly, the damping springs 31 are dismounted, then the sliding rod 3 is controlled to retract into the sliding channel, then the roller 41 is connected with the inner bottom surface of the noise reduction shell 1, the door plate 6 is opened, and the transformer body 43 is moved through the roller 41 and is moved to the outside through the mounting port. The door panel 6 is fixed by the stopper plate 61 and the rotating lever 62.

Comprises a plurality of guide rails 44 and a baffle 45; a guide groove is arranged on the surface of the roller 41, the guide groove is an annular groove, and the axis of the guide groove is overlapped with the axis of the roller 41; the guide rails 44 are strip-shaped, are fixed on the inner bottom surface of the noise reduction shell 1, correspond to the rollers 41, and are arranged along the moving direction of the rollers 41 and are matched with the guide grooves; baffle 45 is fixed in on the inside bottom surface of making an uproar shell 1 falls, is in layer board 4 side, and the height of baffle 45 suits with the distance between layer board 4 and the gyro wheel 41, and baffle 45 cooperatees with layer board 4. The guide rails 44 are two.

When a new transformer body 43 is installed, alignment with the slide bar 3 is required. A guide rail 44, a guide groove and a stopper 45 are provided, and the slide hole is aligned with the slide bar 3 when the pallet 4 is engaged with the stopper 45. The height of the baffle 45 is matched with the distance between the supporting plate 4 and the roller 41, and the baffle 45 is matched with the supporting plate 4, so that the supporting plate 4 is positioned above the baffle 45 when in a damping state, the supporting plate 4 is prevented from rubbing the baffle 45, the baffle 45 is prevented from being worn, and the alignment precision is reduced when the transformer main body 43 is subsequently replaced.

The working process of the embodiment is as follows: when the spring needs to be replaced, the rotating motor 5 is started through the control system, the supporting rod 51 is rotated, the sliding rod 3 is separated from the anti-falling block 53, then the hydraulic cylinder 2 is controlled to extend, the lifting plate 21 moves upwards to enter the matching groove 42, and the supporting plate 4 and the transformer main body 43 are driven to move upwards until the supporting plate 4 is higher than the supporting rod 51. Then, the rotating motor 5 is started to rotate the support rod 51 to the lower part of the supporting plate 4, and the support rod is connected with the bottom surface of the supporting plate 4 and drives the abutting plate 52 to abut against the supporting plate 4. Then the hydraulic cylinder 2 is controlled to contract, the sliding rod 3 is driven to move downwards through the connecting rod 22 until the sliding rod 3 enters the sliding channel, the lifting plate 21 enters the installation cavity, then the damping spring 31 rolls under the action of the collecting surface 23, enters the installation cavity through the lifting channel, and then rolls to the outside under the action of the inner bottom surface of the installation cavity. And then the hydraulic cylinder 2 is controlled by the control system to extend, so that the sliding rod 3 moves upwards until the upper part of the sliding rod 3 is exposed out of the sliding channel, and then the worker opens the door panel 6 by rotating the rotating rod 62, and sleeves a plurality of new damping springs 31 on a plurality of sliding rods 3 respectively. Then control the extension of pneumatic cylinder 2 through control system, drive slide bar 3 and rise and enter into the slide opening, make and lift board 21 and get into cooperation groove 42 in, then start rotation motor 5, make bracing piece 51 antiport, break away from with layer board 4, then control pneumatic cylinder 2 shrink and get back to initial position, control rotation motor 5 at last and rotate, make bracing piece 51 rotate, hold slide bar 3 through anticreep piece 53.

When the transformer body 43 needs to be replaced, the control system starts the rotating motor 5 to rotate the support rod 51, so that the sliding rod 3 is separated from the anti-falling block 53. The hydraulic cylinder 2 is then controlled to extend, so that the lifting plate 21 moves upwards into the matching groove 42, and the supporting plate 4 and the transformer body 43 are driven to move upwards until the supporting plate 4 is higher than the supporting rod 51. Then, the rotating motor 5 is started to rotate the support rod 51 to the lower part of the supporting plate 4, and the support rod is connected with the bottom surface of the supporting plate 4 and drives the abutting plate 52 to abut against the supporting plate 4. Then the hydraulic cylinder 2 is controlled to contract, the sliding rod 3 is driven to move downwards through the connecting rod 22 until the sliding rod 3 enters the sliding channel, the lifting plate 21 enters the installation cavity, and then the damping spring 31 rolls down under the action of the collecting surface 23 and enters the installation cavity through the lifting channel. The control system controls the hydraulic cylinder 2 to extend, so that the lifting plate 21 rises into the matching groove 42, then the rotating motor 5 is started to rotate the supporting rod 51 to be separated from the supporting plate 4, and then the hydraulic cylinder 2 is controlled to contract until the roller 41 is connected with the inner bottom surface of the noise reduction shell 1. Then, the worker opens the door panel 6 to make one side of the door panel 6 contact the ground, and then moves the transformer body 43 so that the transformer body 43 moves to the outside ground through the door panel 6. The new transformer body 43 is then pushed through the door panel 6 into the noise reduction housing 1, engaging the guide grooves and rails 44 until the pallet 4 abuts the baffle 45. Then make the board 21 that lifts through pneumatic cylinder 2 rise, it rises to drive layer board 4 after connecing with layer board 4, then it is fixed with layer board 4 through strutting arrangement, later make slide bar 3 descend through pneumatic cylinder 2, break away from with the slide opening, later the staff overlaps a plurality of damping spring 31 on a plurality of slide bar 3, then extend through control system control pneumatic cylinder 2, it rises to enter into the slide opening to drive slide bar 3, make the board 21 that lifts get into the cooperation groove 42, then start rotation motor 5, make bracing piece 51 antiport, break away from with layer board 4, then control pneumatic cylinder 2 contracts and gets back to initial position, finally control rotation motor 5 rotates, make bracing piece 51 rotate, hold slide bar 3 through anticreep piece 53.

A working method of a dry-type power transformer is characterized in that when a spring needs to be replaced, the following steps are carried out: a1: the rotating motor 5 is started through the control system, the supporting rod 51 is rotated, the sliding rod 3 is separated from the anti-falling block 53, then the hydraulic cylinder 2 is controlled to extend, the lifting plate 21 moves upwards to enter the matching groove 42, and the supporting plate 4 and the transformer main body 43 are driven to move upwards until the supporting plate 4 is higher than the supporting rod 51; a2: then, the rotating motor 5 is started to rotate the supporting rod 51 to the lower part of the supporting plate 4, so that the supporting rod is connected with the bottom surface of the supporting plate 4 and drives the abutting plate 52 to abut against the supporting plate 4; a3: then controlling the hydraulic cylinder 2 to contract, driving the sliding rod 3 to move downwards through the connecting rod 22 until the sliding rod 3 enters the sliding channel, enabling the lifting plate 21 to enter the installation cavity, then enabling the damping spring 31 to roll down under the action of the collecting surface 23, enter the installation cavity through the lifting channel, and then roll to the outside under the action of the inner bottom surface of the installation cavity; a4: then, the hydraulic cylinder 2 is controlled by the control system to extend, so that the sliding rods 3 move upwards until the upper parts of the sliding rods 3 are exposed out of the sliding channel, and then a worker opens the door plate 6 and sleeves a plurality of new damping springs 31 on the sliding rods 3 respectively; a5: then through the extension of control system control pneumatic cylinder 2, drive slide bar 3 and rise and enter into the slide opening, make and lift board 21 and get into cooperation groove 42 in, then start rotating motor 5, make bracing piece 51 antiport, break away from with layer board 4, then control pneumatic cylinder 2 contracts and gets back to initial position, and the control is rotated motor 5 at last and is rotated, makes bracing piece 51 rotate, holds slide bar 3 through anticreep piece 53. The damper spring 31 can be automatically unloaded, and the damper spring 31 can be more conveniently mounted.

When the transformer body 43 is disassembled, the following steps are carried out: b1: the steps A1, A2 and A3 are carried out in sequence, then the hydraulic cylinder 2 is controlled by the control system to extend, the lifting plate 21 is lifted to enter the matching groove 42, then the rotating motor 5 is started, the supporting rod 51 is rotated to be separated from the supporting plate 4, and then the hydraulic cylinder 2 is controlled to contract until the roller 41 is connected with the inner bottom surface of the noise reduction shell 1; b2: then, the worker opens the door panel 6 to make one side of the door panel 6 contact the ground, and then moves the transformer main body 43 so that the transformer main body 43 moves to the external ground through the door panel 6. The roller 41 can be automatically placed on the inner bottom surface of the noise reduction housing 1, and is convenient to move.

The above-mentioned embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present invention are within the protection scope of the present invention.

Claims

1. A dry-type power transformer, comprising: the device comprises a damping device, a transformer main body (43), a noise reduction shell (1), a plurality of supporting devices, a lifting device and a control system; a noise reduction layer is arranged on the inner surface of the noise reduction shell (1), and the noise reduction layer is made of sound insulation materials; the damping device comprises a plurality of damping springs (31), a plurality of sliding rods (3), a supporting plate (4) and a plurality of sliding holes; the supporting plate (4) is transversely arranged in the noise reduction shell (1); the sliding holes are through holes which are communicated up and down and are dispersedly arranged on the supporting plate (4); the sliding rods (3) are vertically arranged in the noise reduction shell (1) and respectively correspond to the sliding holes, and the upper parts of the sliding rods (3) penetrate through the corresponding sliding holes; the damping springs (31) are respectively sleeved on the sliding rods (3) and are positioned below the supporting plate (4), the upper parts of the damping springs (31) are connected with the supporting plate (4), the lower parts of the damping springs (31) are connected with the bottom surface of the interior of the noise reduction shell (1), and the damping springs (31) are in a compressed state; the lifting device is arranged below the supporting plate (4) and matched with the supporting plate (4); the supporting devices are dispersedly arranged on the inner side wall of the noise reduction shell (1), arranged around the transformer main body (43) and matched with the supporting plate (4); the control system is connected with the plurality of supporting devices and the lifting device.

2. A dry-type power transformer as claimed in claim 1, in which: the lifting device comprises a hydraulic cylinder (2), a lifting plate (21) and a protective layer; the hydraulic cylinder (2) is vertically arranged below the supporting plate (4) and is connected with the bottom of the noise reduction shell (1); the lifting plate (21) is transversely arranged above the hydraulic cylinder (2), is positioned below the supporting plate (4) and is fixedly connected with the telescopic end of the hydraulic cylinder (2), and the top surface of the lifting plate (21) is adapted to the bottom surface of the supporting plate (4); the top end of the sliding rod (3) is a conical end; the lower part of the sliding hole is in an inverted funnel shape and is matched with the sliding rod (3); the protective layer is made of rubber materials and covers the top surface of the lifting plate (21).

3. A dry-type power transformer as claimed in claim 2, wherein: the lifting device comprises an installation cavity, a plurality of connecting rods (22) and a plurality of sliding channels; the mounting cavity is arranged at the bottom of the noise reduction shell (1) and is positioned below the inner bottom surface of the noise reduction shell (1); the hydraulic cylinder (2) is positioned in the mounting cavity; the sliding channels are vertically arranged at the bottom of the noise reduction shell (1), extend upwards to the inner bottom surface of the noise reduction shell (1), and are communicated with the mounting cavity downwards; the sliding rods (3) are respectively arranged in the sliding channels, the sliding rods (3) are matched with the sliding channels, and the lower parts of the sliding rods are fixed with the telescopic ends of the hydraulic cylinders (2) through the connecting rods (22).

4. A dry-type power transformer as claimed in claim 3, wherein: a collecting surface (23) is arranged on the inner bottom surface of the noise reduction shell (1), and the collecting surface (23) is a concave cambered surface; the lifting device comprises a lifting channel; the lifting channel is vertically arranged at the bottom of the noise reduction shell (1), extends upwards to the collecting surface (23) and is communicated with the mounting cavity downwards; the lifting plate (21) is positioned in the lifting channel, the upper surface of the lifting plate (21) is a convex cambered surface, and the middle part of the lifting plate (21) protrudes upwards; a matching groove (42) is formed in the bottom surface of the supporting plate (4), and the matching groove (42) is matched with the lifting plate (21); the upper ports of the plurality of sliding channels are positioned in the collecting surface (23); the bottom surface of the inner part of the mounting cavity is an inclined surface, and the lowest point of the mounting cavity is communicated with the outside.

5. A dry-type power transformer as claimed in claim 1, in which: the supporting device comprises a supporting rod (51), a pressing plate (52) and a reinforcing groove (54); the supporting rod (51) is transversely arranged, the middle of the supporting rod is connected with the noise reduction shell (1) through a rotating shaft, one end of the supporting rod is matched with the supporting plate (4), the rotating shaft of the supporting rod (51) is connected with a rotating motor (5), and the rotating axis of the supporting rod (51) is vertically arranged; the reinforcing groove (54) is a groove, is arranged on the inner side wall of the noise reduction shell (1), accommodates the other end of the supporting rod (51), is matched with the rotating path of the supporting rod (51), and is connected with the supporting rod (51) with the internal top surface of the reinforcing groove (54) being a horizontal plane; the abutting plate (52) is arranged above the supporting rod (51) and fixed with the supporting rod (51), and a rubber layer is arranged on the inner side plane of the abutting plate (52) and matched with the supporting plate (4).

6. A dry-type power transformer as claimed in claim 5, wherein: the supporting device comprises a fixing groove and an anti-drop block (53); the fixing grooves are arranged on the side parts of the supporting rods (51); anticreep piece (53) are elastic rubber material, are fixed in the fixed slot, be provided with on anticreep piece (53) and hold the mouth, hold the mouth and be the opening of upper and lower intercommunication, will correspond slide bar (3) hold, just the inner wall that holds the mouth with slide bar (3) are hugged closely, be provided with the anticreep mouth on anticreep piece (53) side, the anticreep mouth is the breach, with it is linked together to hold the mouth, the width of anticreep mouth is less than the diameter of slide bar (3).

7. A dry-type power transformer as claimed in claim 1, in which: comprises a plurality of rollers (41), a door plate (6), a limiting plate (61) and a rotating rod (62); a mounting opening is formed in the side wall of one side of the noise reduction shell (1), the mounting opening is matched with the transformer main body (43), and the lower portion of the mounting opening is connected with the inner bottom surface of the noise reduction shell (1); the door plate (6) is arranged in the mounting opening and is adaptive to the mounting opening, the bottom of the door plate (6) is connected with the noise reduction shell (1) through a rotating shaft, and the rotating axis of the door plate (6) is transversely arranged; the limiting plate (61) is arranged on the inner side of the door plate (6) and fixed with the noise reduction shell (1), and a rubber layer is arranged on the outer side surface of the limiting plate (61) and is tightly attached to the inner side surface of the upper part of the door plate (6); the rotating rod (62) is vertically arranged on the outer side of the door panel (6), the upper part of the rotating rod is connected with the noise reduction shell (1) through a rotating shaft, the rotating axis of the rotating rod (62) is transversely arranged, and a rubber layer is arranged on the surface of the lower part of the rotating rod (62) and is tightly attached to the outer side surface of the upper part of the door panel (6); the rollers (41) are arranged below the supporting plate (4) and connected with the supporting plate (4) through a supporting frame, and the moving directions of the rollers (41) extend to the mounting opening.

8. A dry-type power transformer as claimed in claim 7, wherein: comprises a plurality of guide rails (44) and a baffle (45); a guide groove is formed in the surface of the roller (41), the guide groove is an annular groove, and the axis of the guide groove is overlapped with the axis of the roller (41); the guide rails (44) are strip-shaped, are fixed on the inner bottom surface of the noise reduction shell (1) and correspond to the rollers (41), and the guide rails (44) are arranged along the moving direction of the rollers (41) and are adaptive to the guide grooves; baffle (45) are fixed in fall make an uproar on the inside bottom surface of shell (1) of making an uproar, be in layer board (4) side, the height of baffle (45) with layer board (4) with the distance between gyro wheel (41) suits, baffle (45) with layer board (4) cooperate.

9. The working method of the dry-type power transformer is characterized in that when a spring needs to be replaced, the following steps are carried out:

a1: the rotating motor (5) is started through the control system, the supporting rod (51) is rotated, the sliding rod (3) is separated from the anti-falling block (53), then the hydraulic cylinder (2) is controlled to extend, the lifting plate (21) moves upwards to enter the matching groove (42), and the supporting plate (4) and the transformer main body (43) are driven to move upwards until the supporting plate (4) is higher than the supporting rod (51);

a2: then, a rotating motor (5) is started to enable the supporting rod (51) to rotate to the lower side of the supporting plate (4) and be connected with the bottom surface of the supporting plate (4), and the supporting plate (4) is driven to be tightly abutted by a tight abutting plate (52);

a3: then controlling the hydraulic cylinder (2) to contract, driving the sliding rod (3) to move downwards through the connecting rod (22) until the sliding rod (3) enters the sliding channel, enabling the lifting plate (21) to enter the installation cavity, enabling the damping spring (31) to roll down under the action of the collecting surface (23), enter the installation cavity through the lifting channel, and then roll to the outside under the action of the inner bottom surface of the installation cavity;

a4: then, the hydraulic cylinder (2) is controlled by the control system to extend, so that the sliding rod (3) moves upwards until the upper part of the sliding rod (3) is exposed out of the sliding channel, and then a worker opens the door panel (6) and sleeves a plurality of new damping springs (31) on the sliding rods (3) respectively;

a5: then extend through control system control pneumatic cylinder (2), it rises and enters into the sliding hole to drive slide bar (3), make lifting plate (21) get into cooperation groove (42) in, then start rotating motor (5), make bracing piece (51) antiport, break away from with layer board (4), then control pneumatic cylinder (2) shrink is got back to initial position, last control rotates motor (5) and rotates, make bracing piece (51) rotate, hold slide bar (3) through anticreep piece (53).

10. A method of operating a dry-type power transformer according to claim 9, characterized in that when disassembling the transformer body (43), the following steps are carried out:

b1: the steps A1, A2 and A3 are sequentially carried out, then the hydraulic cylinder (2) is controlled by the control system to extend, the lifting plate (21) is lifted into the matching groove (42), then the rotating motor (5) is started, the supporting rod (51) is rotated to be separated from the supporting plate (4), and then the hydraulic cylinder (2) is controlled to contract until the roller (41) is connected with the inner bottom surface of the noise reduction shell (1);

b2: then, the worker opens the door plate (6) to make one side of the door plate (6) contact with the ground, and then moves the transformer body (43) to make the transformer body (43) move to the outside ground through the door plate (6).