CN114724844A - Epoxy resin pouring system for transformer coil - Google Patents
Epoxy resin pouring system for transformer coil Download PDFInfo
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- CN114724844A CN114724844A CN202210314100.6A CN202210314100A CN114724844A CN 114724844 A CN114724844 A CN 114724844A CN 202210314100 A CN202210314100 A CN 202210314100A CN 114724844 A CN114724844 A CN 114724844A
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- 239000003822 epoxy resin Substances 0.000 title claims abstract description 51
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 238000005266 casting Methods 0.000 claims abstract description 33
- 239000002002 slurry Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000010125 resin casting Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 210000003734 kidney Anatomy 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a transformer coil epoxy resin pouring system, which comprises an epoxy resin pouring mold and a vacuum pouring tank, wherein the epoxy resin pouring mold comprises a pouring head and a pouring head; the epoxy resin pouring mold comprises an inner mold main body with adjustable size, an inner sealing sleeve assembly, a wiring post template and an outer sealing sleeve assembly; the inner mold main body comprises a left waist-shaped plate, a right waist-shaped plate, a first rotating shaft, a second rotating shaft, a bottom plate, an adjusting slide block and a waist-shaped cylinder; the vacuum pouring tank comprises a tank body, a horizontal supporting platform, a universal ball seat, a mold seat plate, a guide seat and a horizontal guide rod, wherein the end part of the mold seat plate is fixedly connected with the end part of the horizontal guide rod through a connecting plate. The die holder plate can horizontally extend out of the tank body, so that the epoxy resin pouring die can be assembled and disassembled by adopting a travelling crane, the assembling and disassembling efficiency of the epoxy resin pouring die can be greatly improved, and the labor intensity of an operator is reduced; and the inner mold main body of the casting mold can be suitable for transformer coils with different sizes, so that the mold cost can be greatly saved, and the demolding efficiency of the coils can be improved.
Description
Technical Field
The invention relates to the technical field of transformer production equipment, in particular to equipment for pouring epoxy resin into a transformer coil.
Background
In the prior art, epoxy resin is wrapped outside a coil of the dry-type transformer, the epoxy resin can play a role in moisture resistance, flame retardance and the like, and the epoxy resin is poured outside the transformer coil through a mold.
In the epoxy resin pouring system for the transformer coil in the prior art, a pouring mold needs to be manually moved into a vacuum pouring container, so that the pulling strength of an operator is high, and the operation efficiency is low.
And the size of the epoxy resin casting mold of the existing transformer coil is fixed and can not be adjusted, and the universality is poor, so that enterprises need to prepare a large number of coil casting molds according to product specifications, and the production cost is increased.
And the existing epoxy resin casting mould for the transformer coil also has the technical problem of difficult demoulding.
Disclosure of Invention
In view of the above, the invention aims to provide a transformer coil epoxy resin casting system, which is used for solving the technical problems of high labor intensity and low operation efficiency caused by the fact that the existing transformer coil epoxy resin casting system mainly finishes the loading and unloading of casting molds manually; the technical problems that the size of a casting mold is not adjustable and the universality is poor are solved; and the technical problem of difficult demoulding of the epoxy resin pouring system of the transformer coil is solved.
The invention relates to a transformer coil epoxy resin pouring system, which comprises an epoxy resin pouring mold and a vacuum pouring tank;
the epoxy resin pouring mold comprises an inner mold main body with adjustable size, an inner sealing sleeve assembly, a wiring post template and an outer sealing sleeve assembly;
the inner mold main body comprises a left waist-shaped plate, a right waist-shaped plate parallel to the left waist-shaped plate, a parallel rod group connecting the left waist-shaped plate and the right waist-shaped plate, a first rotating shaft, a second rotating shaft parallel to the first rotating shaft and a bottom plate, wherein two ends of the first rotating shaft and two ends of the second rotating shaft respectively vertically penetrate through the left waist-shaped plate and the right waist-shaped plate, the first rotating shaft and the second rotating shaft are respectively in rotating fit with the left waist-shaped plate and the right waist-shaped plate, and through holes which are coaxial with each other are formed in the middle parts of the left waist-shaped plate and the right waist-shaped plate;
the right end of the first rotating shaft is fixedly connected with a first rotating wheel, the left end of the first rotating shaft is fixedly connected with a second rotating wheel, the right end of the second rotating shaft is fixedly connected with a third rotating wheel, and the left end of the second rotating shaft is fixedly connected with a fourth rotating wheel; end face thread teeth are arranged on the end faces of the first rotating wheel, the second rotating wheel, the third rotating wheel and the fourth rotating wheel;
the two side semi-circular surfaces of the left waist-shaped plate are uniformly provided with guide straight grooves, the two side semi-circular surfaces of the right waist-shaped plate are also uniformly provided with guide straight grooves, the guide straight grooves are internally provided with adjusting slide blocks in sliding fit with the guide straight grooves, and the adjusting slide blocks are provided with end surface thread grooves; end face thread teeth on the first rotating wheel, the second rotating wheel, the third rotating wheel and the fourth rotating wheel are respectively matched with end face thread grooves on corresponding adjusting sliding blocks;
the first rotating wheel and the third rotating wheel are provided with synchronous tooth grooves, the first gear and the third rotating wheel are connected through a synchronous tooth belt arranged in the synchronous tooth grooves, and the end faces of the first rotating wheel or/and the third rotating wheel are/is provided with a first handle;
the inner mold main body also comprises a waist-shaped cylinder, the arc parts at two sides of the waist-shaped cylinder are composed of a plurality of arc-shaped strips, and two ends of each arc-shaped strip are respectively and correspondingly fixed on the end part of one adjusting slide block; the two side plane parts of the waist-shaped cylinder are composed of two flat plates, and four corner parts of each flat plate are respectively and correspondingly fixed on the end part of one adjusting slide block;
the inner mold main body further comprises a locking mechanism for locking the second rotating wheel and the fourth rotating wheel;
one end of the parallel rod group penetrates through the left waist-shaped plate and then is vertically connected with the bottom plate, and the bottom plate is provided with a window for operating the locking mechanism;
the inner sealing sleeve assembly comprises an inner sealing sleeve and two sealing clamping plates, a longitudinal opening is formed in the inner sealing sleeve, the edge parts of the inner sealing sleeve on two sides of the longitudinal opening are bent inwards to form a rectangular groove for accommodating the sealing clamping plates, and the two sealing clamping plates are connected through screws; the inner sealing sleeve is sleeved on the waist-shaped cylinder, a groove for accommodating the sealing splint part is formed in the middle of one flat plate of the waist-shaped cylinder, and the end face of the inner sealing sleeve is attached to the bottom plate;
the wiring column template is provided with a wiring column accommodating cavity and a plugging bolt for plugging a wiring column screw hole, the lower end of the wiring column template is provided with two parallel U-shaped adjusting grooves, and the wiring column template is vertically fixed on the bottom plate through screws arranged in the U-shaped adjusting grooves;
the outer sealing sleeve assembly comprises an outer sealing sleeve and a clamper, the outer sealing sleeve is provided with an opening sideboard stuck on two side faces of a wiring column template, the clamper is clamped on the opening sideboard, and the upper side edge of the outer sealing sleeve is also provided with an overflow port and an overflow collecting tank;
the vacuum casting tank comprises a tank body, a vacuum pump, a vacuum sensor, a casting material storage bin, a casting pipeline, a slurry pump, a flowmeter, an electric heater, a temperature sensor and a controller, wherein the tank body is horizontally arranged, the vacuum pump is used for vacuumizing the tank body, the vacuum sensor is used for detecting the vacuum degree in the tank body, the casting material storage bin is arranged at the top of the tank body, the casting pipeline is arranged in the tank body, the slurry pump is arranged at the top of the tank body and is used for pumping casting material into the casting pipeline, the flowmeter is arranged on a pipeline on the outlet side of the slurry pump, the electric heater is arranged in the tank body, the temperature sensor is used for detecting the temperature in the tank body, and the controller is used for controlling the vacuum pump, the slurry pump and the electric heater;
the vacuum casting tank also comprises a horizontal support platform arranged in the tank body, a universal ball seat arranged on the horizontal support platform, a die holder plate supported by the universal ball seat, a guide seat arranged at the bottom of the horizontal support platform and a horizontal guide rod in sliding fit with the guide seat, wherein the end part of the die holder plate is fixedly connected with the end part of the horizontal guide rod through a connecting plate; and a positioning groove matched with the bottom plate of the inner die main body is arranged on the top surface of the die seat plate.
Furthermore, the locking mechanism comprises a bolt fixed on the left waist-shaped plate, a pressing plate penetrating through the bolt, two ends of the pressing plate respectively pressing the second rotating wheel and the fourth rotating wheel, and a nut matched with the bolt and applying pressure to the pressing plate, wherein a through hole opposite to the through hole in the middle of the left waist-shaped plate is formed in the middle of the pressing plate.
Further, the clamp holder comprises an arc body, a left clamp fixed at the left end of the arc body and a second handle in threaded fit with the right end of the arc body, and the end of the second handle is provided with a right clamp.
The invention has the beneficial effects that:
1. according to the transformer coil epoxy resin pouring system, the die holder plate can horizontally extend out of the tank body, and the positioning groove matched with the bottom plate of the inner mold main body is formed in the top surface of the die holder plate, so that an epoxy resin pouring mold can be hung on the die holder plate through a travelling crane arranged in a workshop, and then the die holder plate and the epoxy resin pouring mold thereon are integrally conveyed into the tank body, the loading and unloading efficiency of the epoxy resin pouring mold can be greatly improved, and the labor intensity of an operator is reduced.
2. According to the transformer coil epoxy resin pouring system, the size of the waist-shaped cylinder of the inner mold main body on the epoxy resin pouring mold can be adjusted to be enlarged or reduced by rotating the first rotating wheel or the third rotating wheel through the handle, so that the inner mold main body can be matched with the inner sealing sleeve assemblies with different sizes, and therefore the transformer coil pouring system can be suitable for transformer coils with different sizes.
3. According to the transformer coil epoxy resin pouring system, after pouring is completed and drying is conducted, the locking mechanism of the epoxy resin pouring mold is loosened, the first rotating wheel or the third rotating wheel is rotated to reduce the size of the waist-shaped cylinder, the inner mold main body can be detached, the inner sealing sleeve assembly can be conveniently and easily detached after the inner mold main body is detached, and the coil demoulding time is short and the efficiency is high.
4. According to the epoxy resin casting system for the transformer coil, the inner sealing sleeve assembly of the epoxy resin casting mold is arranged on the inner mold main body and then can be directly used for winding the coil on the winding machine, and the wound coil is combined with the wiring column template and the outer sealing sleeve assembly for epoxy resin casting, so that the production efficiency of the transformer coil can be improved.
Drawings
FIG. 1 is a schematic perspective view of a transformer coil epoxy resin casting system;
FIG. 2 is a schematic perspective view of an epoxy resin casting mold;
FIG. 3 is a schematic perspective view of the outer boot assembly of FIG. 2 with the outer boot removed;
FIG. 4 is a perspective view of FIG. 3 with the inner boot assembly removed;
FIG. 5 is a schematic perspective view of the inner mold body with the kidney barrel removed;
FIG. 6 is a schematic view of the inner mold body from another perspective with the kidney cylinder removed;
FIG. 7 is a schematic structural view of the inner mold body with the bottom plate and kidney cylinder removed;
fig. 8 is a control schematic block diagram of a transformer coil epoxy resin casting system.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in the figure, the transformer coil epoxy casting system of the embodiment includes an epoxy casting mold and a vacuum casting tank.
The epoxy resin pouring mold comprises an inner mold main body with adjustable size, an inner sealing sleeve assembly, a wiring post template and an outer sealing sleeve assembly.
Centre form main part includes left waist shaped plate 1, with the parallel right waist shaped plate 2 of left waist shaped plate, connect the parallel rod group 3 of left waist shaped plate and right waist shaped plate, first pivot 4, with first pivot parallel second pivot 5 and bottom plate 6, the both ends of first pivot and second pivot are passed left waist shaped plate and right waist shaped plate respectively perpendicularly, and first pivot and second pivot respectively with left waist shaped plate and right waist shaped plate normal running fit, the middle part of left waist shaped plate and right waist shaped plate is provided with mutual coaxial through-hole 7.
The right end of the first rotating shaft is fixedly connected with a first rotating wheel 8, the left end of the first rotating shaft is fixedly connected with a second rotating wheel 9, the right end of the second rotating shaft is fixedly connected with a third rotating wheel 10, and the left end of the second rotating shaft is fixedly connected with a fourth rotating wheel 11; end face thread teeth are arranged on the end faces of the first rotating wheel, the second rotating wheel, the third rotating wheel and the fourth rotating wheel.
The two sides of the left waist-shaped plate are uniformly provided with guide straight grooves, the two sides of the right waist-shaped plate are also uniformly provided with guide straight grooves, the guide straight grooves are internally provided with adjusting slide blocks 12 which are in sliding fit with the guide straight grooves, and the adjusting slide blocks are provided with end face thread grooves; and end face thread teeth on the first rotating wheel, the second rotating wheel, the third rotating wheel and the fourth rotating wheel are respectively matched with end face thread grooves on the corresponding adjusting sliding blocks.
The first rotating wheel and the third rotating wheel are provided with synchronous tooth grooves, the first gear and the third rotating wheel are connected through a synchronous toothed belt 13 arranged in the synchronous tooth grooves, and the end faces of the first rotating wheel and the third rotating wheel are provided with first handles 14.
The inner mold main body further comprises a waist-shaped cylinder, arc parts on two sides of the waist-shaped cylinder are composed of a plurality of arc-shaped strips 15, and two ends of each arc-shaped strip are respectively and correspondingly fixed on the end part of one adjusting slide block; the two side plane parts of the waist-shaped cylinder are composed of two flat plates 16, and four corner parts of each flat plate are respectively and correspondingly fixed on the end part of one adjusting slide block.
The inner mold main body further comprises a locking mechanism for locking the second rotating wheel and the fourth rotating wheel. In this embodiment, the locking mechanism includes a bolt 17 fixed on the left waist-shaped plate, a pressure plate 18 threaded on the bolt and having two ends respectively pressing on the second rotating wheel and the fourth rotating wheel, and a nut 19 engaged with the bolt and applying pressure to the pressure plate; the nut is loosened, and the size of the waist-shaped cylinder can be adjusted by rotating the first handle; and locking nuts are used for enabling the pressure plate to be tightly pressed on the second rotating wheel and the fourth rotating wheel, and the size of the waist-shaped cylinder is kept unchanged. The middle part of the pressure plate is provided with a via hole 20 which is just opposite to the through hole 7 in the middle part of the left waist-shaped plate. When winding the coil, the shaft of the winding machine passes through the through hole 7 and the through hole 20 to be connected with the die.
One end of the parallel rod group penetrates through the left waist-shaped plate and then is vertically connected with the bottom plate, and the bottom plate is provided with a window 21 for operating the locking mechanism.
The inner sealing sleeve assembly comprises an inner sealing sleeve 22 and two sealing clamping plates 23, a longitudinal opening is formed in the inner sealing sleeve, the edge parts of the inner sealing sleeve on two sides of the longitudinal opening are bent inwards to form a rectangular groove for accommodating the sealing clamping plates, and the two sealing clamping plates are connected through screws 24; the inner sealing sleeve is sleeved on the waist-shaped tube, a groove 161 for accommodating the sealing clamping plate part is arranged in the middle of one flat plate of the waist-shaped tube, and the end face of the inner sealing sleeve is attached to the bottom plate.
The wiring column template 25 is provided with a wiring column accommodating cavity 26 and a plugging bolt 27 for plugging a wiring column screw hole, the lower end of the wiring column template is provided with two parallel U-shaped adjusting grooves 28, and the wiring column template is vertically fixed on the bottom plate through a screw arranged in the U-shaped adjusting grooves. The installation position of the wiring post template can be adjusted back and forth along the length direction of the U-shaped adjusting groove.
The outer sealing sleeve assembly comprises an outer sealing sleeve 29 and a clamper, the outer sealing sleeve is provided with opening side plates clamped and attached to two side faces of the wiring column template, and the clamper is clamped on the opening side plates. In this embodiment, the gripper comprises a bow 30, a left grip 31 fixed to the left end of the bow, and a second handle 32 screwed to the right end of the bow, the end of the second handle being provided with a right grip 33. The upper side edge part of the outer sealing sleeve is also provided with an overflow port 34 and an overflow collecting groove 35, and redundant materials flow into the overflow collecting groove from the overflow port during pouring, so that the pouring consistency of each transformer coil can be ensured.
The vacuum casting tank comprises a tank body 36 arranged horizontally, a vacuum pump 37 for vacuumizing the tank body, a vacuum sensor 38 for detecting the vacuum degree in the tank body, a casting material storage bin 39 arranged at the top of the tank body, a casting pipeline 40 arranged in the tank body, a slurry pump 41 arranged at the top of the tank body and used for pumping casting material into the casting pipeline, a flow meter 42 arranged on a pipeline at the outlet side of the slurry pump, an electric heater 43 arranged in the tank body, a temperature sensor 44 for detecting the temperature in the tank body and a controller 45 for controlling the vacuum pump, the slurry pump and the electric heater, wherein the vacuum degree sensor, the flow meter and the temperature sensor are respectively connected with the signal input end of the controller, and the signal output end of the controller 45 is respectively connected with the control signal input end of a relay arranged on the working circuit of the vacuum pump, the slurry pump and the electric heater.
The vacuum casting tank further comprises a horizontal support platform 46 arranged in the tank body, a universal ball seat 47 arranged on the horizontal support platform, a die holder plate 48 supported by the universal ball seat, a guide seat 49 arranged at the bottom of the horizontal support platform and a horizontal guide rod 50 in sliding fit with the guide seat, wherein the end part of the die holder plate is fixedly connected with the end part of the horizontal guide rod through a connecting plate 51; the top surface of the die base plate is provided with a positioning groove 52 matched with the bottom plate of the inner die main body.
In the transformer coil epoxy resin pouring system in the embodiment, the die holder plate can horizontally stretch out of the tank body, and the top surface of the die holder plate is provided with the positioning groove matched with the bottom plate of the inner die main body, so that the epoxy resin pouring die can be hoisted on the die holder plate by a travelling crane arranged in a workshop, and then the die holder plate and the epoxy resin pouring die thereon are integrally sent into the tank body, thereby greatly improving the loading and unloading efficiency of the epoxy resin pouring die and reducing the labor intensity of an operator.
After the epoxy resin pouring mold is sent into the tank body, vacuumizing the tank body through a vacuum pump, and when the vacuum degree reaches a set value, controlling the vacuum pump to stop by a controller; then the controller controls the slurry pump to work, the slurry pump pumps the casting material into the pouring pipeline, the casting material flows into the epoxy resin pouring mold below from a nozzle on the pouring pipeline, and the controller controls the slurry pump to stop when the metering value of the flowmeter reaches a set value; and then the controller controls the electric heater to work, and the epoxy resin in the die is dried and shaped. When unloading, the die holder plate is pulled out, and the epoxy resin pouring die is unloaded from the die holder plate by adopting a travelling crane.
In the epoxy resin pouring mold in the embodiment, after the inner sealing sleeve assembly is arranged on the inner mold main body, the inner sealing sleeve assembly can be directly used for winding a coil on a winding machine, the coil is wound and then combined with the wiring column template and the outer sealing sleeve assembly to perform epoxy resin pouring, epoxy resin is injected from an opening between the upper end of the inner mold sealing sleeve and the upper end of the outer mold sealing sleeve, and the production efficiency of a transformer coil can be improved. After epoxy resin is poured and is accomplished the stoving, loosen locking mechanical system's nut, rotate first runner or third runner again and reduce the size of waist shape section of thick bamboo, can pull down the centre form main part, the centre form main part can be convenient, easy pull down the interior sealing sleeve subassembly after pulling down, the coil drawing of patterns is consuming time weak point, efficient.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (3)
1. The transformer coil epoxy resin pouring system comprises an epoxy resin pouring mold and a vacuum pouring tank; the method is characterized in that:
the epoxy resin pouring mold comprises an inner mold main body with adjustable size, an inner sealing sleeve assembly, a wiring post template and an outer sealing sleeve assembly;
the inner mold main body comprises a left waist-shaped plate, a right waist-shaped plate parallel to the left waist-shaped plate, a parallel rod group connecting the left waist-shaped plate and the right waist-shaped plate, a first rotating shaft, a second rotating shaft parallel to the first rotating shaft and a bottom plate, wherein two ends of the first rotating shaft and two ends of the second rotating shaft respectively vertically penetrate through the left waist-shaped plate and the right waist-shaped plate, the first rotating shaft and the second rotating shaft are respectively in rotating fit with the left waist-shaped plate and the right waist-shaped plate, and through holes which are coaxial with each other are formed in the middle parts of the left waist-shaped plate and the right waist-shaped plate;
the right end of the first rotating shaft is fixedly connected with a first rotating wheel, the left end of the first rotating shaft is fixedly connected with a second rotating wheel, the right end of the second rotating shaft is fixedly connected with a third rotating wheel, and the left end of the second rotating shaft is fixedly connected with a fourth rotating wheel; end face thread teeth are arranged on the end faces of the first rotating wheel, the second rotating wheel, the third rotating wheel and the fourth rotating wheel;
the two side semi-circular surfaces of the left waist-shaped plate are uniformly provided with guide straight grooves, the two side semi-circular surfaces of the right waist-shaped plate are also uniformly provided with guide straight grooves, the guide straight grooves are internally provided with adjusting slide blocks in sliding fit with the guide straight grooves, and the adjusting slide blocks are provided with end surface thread grooves; the end face thread teeth on the first rotating wheel, the second rotating wheel, the third rotating wheel and the fourth rotating wheel are respectively matched with the end face thread grooves on the corresponding adjusting sliding blocks;
the first rotating wheel and the third rotating wheel are provided with synchronous tooth grooves, the first gear and the third rotating wheel are connected through a synchronous tooth belt arranged in the synchronous tooth grooves, and the end faces of the first rotating wheel or/and the third rotating wheel are/is provided with a first handle;
the inner mold main body also comprises a waist-shaped cylinder, the arc parts at two sides of the waist-shaped cylinder are composed of a plurality of arc-shaped strips, and two ends of each arc-shaped strip are respectively and correspondingly fixed on the end part of one adjusting slide block; the two side plane parts of the waist-shaped cylinder are composed of two flat plates, and four corner parts of each flat plate are respectively and correspondingly fixed on the end part of one adjusting slide block;
the inner mold main body further comprises a locking mechanism for locking the second rotating wheel and the fourth rotating wheel;
one end of the parallel rod group penetrates through the left waist-shaped plate and then is vertically connected with the bottom plate, and the bottom plate is provided with a window for operating the locking mechanism;
the inner sealing sleeve assembly comprises an inner sealing sleeve and two sealing clamping plates, a longitudinal opening is formed in the inner sealing sleeve, the edge parts of the inner sealing sleeve on two sides of the longitudinal opening are bent inwards to form a rectangular groove for accommodating the sealing clamping plates, and the two sealing clamping plates are connected through screws; the inner sealing sleeve is sleeved on the waist-shaped cylinder, a groove for accommodating the sealing splint part is formed in the middle of one flat plate of the waist-shaped cylinder, and the end face of the inner sealing sleeve is attached to the bottom plate;
the wiring column template is provided with a wiring column accommodating cavity and a plugging bolt for plugging a wiring column screw hole, the lower end of the wiring column template is provided with two parallel U-shaped adjusting grooves, and the wiring column template is vertically fixed on the bottom plate through screws arranged in the U-shaped adjusting grooves;
the outer sealing sleeve assembly comprises an outer sealing sleeve and a clamper, the outer sealing sleeve is provided with an opening sideboard clamped and attached to two side faces of the wiring column template, the clamper is clamped on the opening sideboard, and the upper side edge of the outer sealing sleeve is also provided with an overflow port and an overflow collecting tank;
the vacuum casting tank comprises a tank body, a vacuum pump, a vacuum sensor, a casting material storage bin, a casting pipeline, a slurry pump, a flowmeter, an electric heater, a temperature sensor and a controller, wherein the tank body is horizontally arranged, the vacuum pump is used for vacuumizing the tank body, the vacuum sensor is used for detecting the vacuum degree in the tank body, the casting material storage bin is arranged at the top of the tank body, the casting pipeline is arranged in the tank body, the slurry pump is arranged at the top of the tank body and is used for pumping casting material into the casting pipeline, the flowmeter is arranged on a pipeline on the outlet side of the slurry pump, the electric heater is arranged in the tank body, the temperature sensor is used for detecting the temperature in the tank body, and the controller is used for controlling the vacuum pump, the slurry pump and the electric heater;
the vacuum casting tank also comprises a horizontal support platform arranged in the tank body, a universal ball seat arranged on the horizontal support platform, a die holder plate supported by the universal ball seat, a guide seat arranged at the bottom of the horizontal support platform and a horizontal guide rod in sliding fit with the guide seat, wherein the end part of the die holder plate is fixedly connected with the end part of the horizontal guide rod through a connecting plate; and a positioning groove matched with the bottom plate of the inner die main body is arranged on the top surface of the die seat plate.
2. The transformer coil epoxy casting system of claim 1, wherein: the locking mechanism comprises a bolt fixed on the left waist-shaped plate, a pressing plate which penetrates through the bolt and is provided with two ends respectively pressing the second rotating wheel and the fourth rotating wheel, and a nut which is matched with the bolt and applies pressure to the pressing plate, wherein a through hole which is right opposite to the through hole in the middle of the left waist-shaped plate is formed in the middle of the pressing plate.
3. The transformer coil epoxy casting system of claim 1, wherein: the clamp holder comprises an arc body, a left clamp fixed at the left end of the arc body and a second handle in threaded fit with the right end of the arc body, and the end part of the second handle is provided with a right clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314100.6A CN114724844B (en) | 2022-03-28 | 2022-03-28 | Transformer coil epoxy resin casting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314100.6A CN114724844B (en) | 2022-03-28 | 2022-03-28 | Transformer coil epoxy resin casting system |
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| Publication Number | Publication Date |
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| CN114724844A true CN114724844A (en) | 2022-07-08 |
| CN114724844B CN114724844B (en) | 2024-06-25 |
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| CN214672211U (en) * | 2021-05-26 | 2021-11-09 | 重庆九能控股有限公司 | Transformer coil winding mould |
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2022
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|---|---|---|---|---|
| US7023312B1 (en) * | 2001-12-21 | 2006-04-04 | Abb Technology Ag | Integrated cooling duct for resin-encapsulated distribution transformer coils |
| CN201259837Y (en) * | 2009-01-22 | 2009-06-17 | 广东海鸿变压器有限公司 | Wire winding and casting mold for tridimensional rolling magnetic core resin insulation dry transformer |
| CN204067032U (en) * | 2013-05-20 | 2014-12-31 | 国家电网公司 | A kind of reactor winding casting mold and inner mold, internal mold sealing device |
| JP2017013260A (en) * | 2015-06-29 | 2017-01-19 | 東レ株式会社 | Resin injection molding die, resin injection molding device, and method for producing fiber-reinforced resin using the same |
| CN105345975A (en) * | 2015-11-15 | 2016-02-24 | 艾柯电器（苏州）有限公司 | Epoxy casting mold with adjustable casting height and easy-to-disengage inner mold body |
| CN208601796U (en) * | 2018-08-22 | 2019-03-15 | 华翔翔能电气股份有限公司 | A kind of dry-type transformer winding casting mold |
| CN112071604A (en) * | 2020-08-07 | 2020-12-11 | 华翔翔能科技股份有限公司 | Dry-type high-pressure casting mold |
| CN214672211U (en) * | 2021-05-26 | 2021-11-09 | 重庆九能控股有限公司 | Transformer coil winding mould |
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| CN114724844B (en) | 2024-06-25 |
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