CN110970214B - Large transformer coil demolding device and method - Google Patents

Large transformer coil demolding device and method Download PDF

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Publication number
CN110970214B
CN110970214B CN201911341623.4A CN201911341623A CN110970214B CN 110970214 B CN110970214 B CN 110970214B CN 201911341623 A CN201911341623 A CN 201911341623A CN 110970214 B CN110970214 B CN 110970214B
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cross
adjustable movable
main
rotary
gear
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CN110970214A (en
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郭亚平
苗昆
张红文
秦超
申旭
何晓
李勇
储志强
宋增旺
任志勇
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Baoding Tianwei Baobian Electric Co Ltd
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Baoding Tianwei Baobian Electric Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus 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
    • H01F41/02Apparatus 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
    • H01F41/04Apparatus 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)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The invention relates to a large transformer coil demoulding device and method, and belongs to the technical field of transformer manufacturing. The technical proposal is as follows: the hanging shaft (1) is arranged at the top end of the main beam (2); the main beam and the rotary beam (4) are arranged in a staggered manner to form a cross combined beam, and the rotary shaft (3) is arranged at the center of the cross combined beam; the cross beam rotation adjusting device (5) is arranged on the cross combined beam; two adjustable movable upright posts are arranged on a main beam of the cross combined beam in a sliding way through rollers, and the other two adjustable movable upright posts are arranged on a rotary beam of the cross combined beam in a sliding way through rollers; the adjustable movable upright post (6) is connected with the cross combination beam through an upright post synchronous adjusting device (7); the dovetail supporting plate (8) is arranged at the bottom of the adjustable movable upright post and is provided with a radial telescopic structure. The invention realizes stepless adjustment of the demoulding diameter, can carry out demoulding treatment on coils with various sizes and specifications in a certain range, and has convenient operation, strong practicability, safety and reliability.

Description

Large transformer coil demolding device and method
Technical Field
The invention relates to a large transformer coil demoulding device and method, and belongs to the technical field of transformer manufacturing.
Background
The large transformer coil is wound on a die through a special winding machine, and then the coil is taken down through a demoulding device. Traditional step combined type demoulding device needs manual adjustment hanging beam and lifting hook's relative position, and when lifting hook position and coil diameter difference were great, need bind lifting hook and coil into an organic whole with the suspender, and the process is loaded down with trivial details and the security is relatively poor, has serious potential safety hazard. Along with the continuous rise of the voltage level of the transformer, the diameter, radial direction, dead weight and volume of the coil are increased, and the specification is more and more, so that a large-tonnage coil demoulding device with stepless adjustable diameter and radial direction is needed.
Disclosure of Invention
The invention aims to provide a large transformer coil demoulding device and method, a cross combined beam and an adjustable movable upright post for hoisting coils are arranged, and the angle and the moving position of the cross combined beam and the adjustable movable upright post are adjusted by applying a cross beam rotation adjusting device and an upright post synchronous adjusting device, so that the stepless adjustment of the demoulding diameter is realized, the coils with various dimensions can be demoulded in a certain range, the operation is convenient, the practicability is strong, the safety and the reliability are realized, and the problems in the background technology are effectively solved.
The technical scheme of the invention is as follows: the large transformer coil demoulding device comprises a hanging shaft, a main beam, a rotating shaft, a rotating beam, a beam rotating adjusting device, an adjustable movable upright post, an upright post synchronous adjusting device and a dovetail supporting plate, wherein the hanging shaft is arranged at the top end of the main beam; the main beam and the rotary beam are arranged in a staggered manner to form a cross combined beam, and the rotary shaft is arranged at the center of the cross combined beam; the cross beam rotation adjusting device is arranged on the cross combination beam to realize the adjustment of the cross combination Liang Gajiao; the four adjustable movable upright posts are arranged at the upper end, the two adjustable movable upright posts are arranged on the main cross beam of the cross combined beam in a sliding way through the rollers, and the other two adjustable movable upright posts are arranged on the rotary cross beam of the cross combined beam in a sliding way through the rollers; the adjustable movable upright posts are connected with the cross combined beam through upright post synchronous adjusting devices, and the upright post synchronous adjusting devices realize that four adjustable movable upright posts synchronously move on the cross combined beam, so that the stepless adjustable demoulding diameter is realized; the dovetail supporting plate is arranged at the bottom of the adjustable movable upright post and is provided with a radial telescopic structure.
The rotating shaft comprises a main shaft and a bearing assembly, and the main shaft is fixed on the main beam; the rotating cross beam is mounted on the rotating shaft and rotates around the rotating shaft, so that the main cross beam and the rotating cross beam form a cross combined beam taking the rotating shaft as a center.
The beam rotation adjusting device comprises a gear ring, a gear, a first speed reducer and a motor, wherein the gear ring is arranged on a main beam, the first speed reducer and the gear are arranged on a rotating beam after being combined, the gear and the gear ring are meshed with each other, the gear rotates along the gear ring under the action of a motor driving gear, and the rotating beam is driven to rotate by taking a rotating shaft as the center, so that the adjustment of a cross assembly Liang Gajiao is realized, and the adjustment range of the cross assembly Liang Gajiao is 50-90 degrees.
The upright post synchronous adjusting device is an electric adjusting device, and the stepless adjustable range of the demoulding diameter is phi 1000-phi 3600; the upright post synchronous adjusting device comprises four groups of screw nuts, a big bevel gear, four small bevel gears and a second speed reducer, wherein the screw nuts are arranged on each adjustable movable upright post, the screw nuts and the small bevel gears are correspondingly arranged on the cross combined beam after being combined, the screw nuts are connected with the screw nuts in a matching manner, the big bevel gears are arranged at the center of the cross combined beam, the four small bevel gears are meshed with the big bevel gears, and the second speed reducer is arranged at one end of the main beam and is connected with the four screw nuts.
The two adjustable movable stand columns arranged on the main beam in a sliding manner are symmetrical about the center of the rotating shaft, and the two adjustable movable stand columns arranged on the rotating beam in a sliding manner are symmetrical about the center of the rotating shaft.
The radial telescopic structure of the dovetail supporting plate is adjusted in the range of 0mm-700mm in radial direction of the coil. Dovetail pallets are commonly known in the art as pallets for insertion into the bottom of a transformer coil to hold the coil.
A large transformer coil demoulding method comprises the following steps: ① The hanging shaft is fixed with the main beam, the rotating shaft consists of a main shaft and a bearing assembly, and the main shaft is fixed on the main beam; the rotary cross beam is arranged on the rotary shaft and rotates around the rotary shaft to form a main cross beam and a cross combined beam taking the rotary shaft as the center; ② The beam rotation adjusting device consists of a gear ring, a gear, a first speed reducer and a motor, wherein the gear ring is arranged on the main beam, the first speed reducer and the gear are arranged on the rotary beam after being combined, the gear and the gear ring are meshed with each other, and the gear rotates along the gear ring under the action of the motor, so that the rotary beam is driven to rotate by taking a rotary shaft as a center, the included angle of the cross combined beam is adjusted, and the included angle adjusting range is 50-90 degrees; ③ Four adjustable movable stand columns are arranged on the cross combined beam, two adjustable movable stand columns which are arranged on the main beam in a sliding manner are symmetrical about the center of a rotating shaft, two adjustable movable stand columns which are arranged on the rotating beam in a sliding manner are symmetrical about the center of the rotating shaft, idler wheels are arranged at the top ends of the adjustable movable stand columns, and the whole adjustable movable stand column horizontally moves on the cross combined beam through the idler wheels; ④ The stepless adjustment of the demoulding diameter is realized through a column synchronous adjusting device, the column synchronous adjusting device comprises four groups of screw nuts, a big bevel gear, four small bevel gears and a second speed reducer, the screw nuts are arranged on each adjustable movable column, the screw nuts and the small bevel gears are arranged on a main beam and a rotary beam of the cross combined beam after being combined, the big bevel gears are arranged at the center of the cross combined beam, the four small bevel gears are meshed with the large bevel gear, the second speed reducer is arranged at one end of the main beam and connected with the screw rod, the adjustable movable upright posts are simultaneously opened and closed inwards or outwards under the action of the upright post synchronous adjusting device, and the distance from each adjustable movable upright post to the center of the cross combined beam is ensured to be consistent for synchronous realization, so that the diameter of the demolding device is consistent with the diameter of the coil, and the demolding safety of the coil is ensured; ⑤ The dovetail supporting plate is arranged at the bottom of the adjustable movable upright post, can be radially and telescopically adjusted (coil is radially 0-700 mm), ensures that the coil is lifted by abutting against the inner side of the adjustable movable upright post, and is safe and reliable.
The beneficial effects of the invention are as follows: the cross combination beam and the adjustable movable stand column for hoisting coils are arranged, and the angle and the moving position of the cross combination beam and the adjustable movable stand column are adjusted by the application of the cross beam rotation adjusting device and the stand column synchronous adjusting device, so that the stepless adjustment of the demolding diameter is realized, the demolding treatment of coils with various sizes can be performed in a certain range, and the device is convenient to operate, high in practicability, safe and reliable.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cross beam and cross beam rotation adjustment device of the present invention;
FIG. 3 is a schematic view of the structure of the rotary shaft of the present invention;
in the figure: the lifting device comprises a lifting shaft 1, a main beam 2, a rotating shaft 3, a rotating beam 4, a beam rotation adjusting device 5, an adjustable movable upright post 6, an upright post synchronous adjusting device 7, a dovetail supporting plate 8, a roller 9, a screw rod 10, a screw nut 11, a large bevel gear 12 and a small bevel gear 13.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and the examples.
The large transformer coil demoulding device comprises a hanging shaft 1, a main beam 2, a rotating shaft 3, a rotating beam 4, a beam rotating adjusting device 5, an adjustable movable upright post 6, an upright post synchronous adjusting device 7 and a dovetail supporting plate 8, wherein the hanging shaft 1 is arranged at the top end of the main beam 2; the main beam 2 and the rotary beam 4 are arranged in a staggered way to form a cross combined beam, and the rotary shaft 3 is arranged at the center of the cross combined beam; the cross beam rotation adjusting device 5 is arranged on the cross combination beam to realize the adjustment of the cross combination Liang Gajiao; four adjustable movable upright posts 6 are arranged, the upper ends of the four adjustable movable upright posts are provided with idler wheels, two adjustable movable upright posts are arranged on the main cross beam 2 of the cross combined beam in a sliding way through the idler wheels, and the other two adjustable movable upright posts are arranged on the rotary cross beam 4 of the cross combined beam in a sliding way through the idler wheels; the adjustable movable upright posts 6 are connected with the cross combined beam through upright post synchronous adjusting devices 7, and the upright post synchronous adjusting devices 7 realize that four adjustable movable upright posts 6 synchronously move on the cross combined beam, so that the stepless adjustment of the demoulding diameter is realized; the dovetail supporting plate 8 is arranged at the bottom of the adjustable movable upright post 6 and is provided with a radial telescopic structure.
The rotating shaft 3 comprises a main shaft and a bearing assembly, and the main shaft is fixed on the main beam 2; the rotating cross member 4 is mounted on the rotating shaft 3 to rotate around the rotating shaft, so that the main cross member 2 and the rotating cross member 4 form a cross composite beam centering on the rotating shaft 3. The bearing assembly includes bearings, bearing blocks, and the like.
The beam rotation adjusting device 5 comprises a gear ring, a gear, a first speed reducer and a motor, wherein the gear ring is arranged on the main beam 2, the first speed reducer and the gear are arranged on the rotary beam 4 after being combined, the gear and the gear ring are meshed with each other, the gear rotates along the gear ring under the action of the motor driving gear, and the rotary beam 4 is driven to rotate by taking the rotary shaft 3 as the center, so that the adjustment of the cross assembly Liang Gajiao is realized, and the adjustment range of the cross assembly Liang Gajiao is 50-90 degrees.
The upright post synchronous adjusting device 7 is an electric adjusting device, and the stepless adjustable range of the demoulding diameter is phi 1000-phi 3600; the upright synchronous adjusting device 7 comprises four groups of screw nuts, a big bevel gear, four small bevel gears and a second speed reducer, wherein the screw nuts 11 are arranged on each adjustable movable upright 6, the screw nuts 10 and the small bevel gears 13 are correspondingly arranged on the cross combined beam after being combined, the screw nuts are connected with the screw nuts in a matched mode, the big bevel gears 12 are arranged at the center of the cross combined beam, the four small bevel gears are meshed with the big bevel gears, and the second speed reducer is arranged at one end of the main beam 2 and is connected with the four screw nuts.
The radial telescopic structure of the dovetail supporting plate 8 is adjusted in the range of 0mm-700mm in radial direction of the coil.
A large transformer coil demoulding method comprises the following steps: ① The hanging shaft is fixed with the main beam, the rotating shaft consists of a main shaft and a bearing assembly, and the main shaft is fixed on the main beam 2; the rotary cross beam 4 is arranged on the rotary shaft 3 and rotates around the rotary shaft to form a cross combined beam with the main cross beam and the rotary cross beam taking the rotary shaft as the center; ② The beam rotation adjusting device consists of a gear ring, a gear, a first speed reducer and a motor, wherein the gear ring is arranged on the main beam, the first speed reducer and the gear are arranged on the rotary beam after being combined, the gear and the gear ring are meshed with each other, and the gear rotates along the gear ring under the action of the motor, so that the rotary beam is driven to rotate by taking a rotary shaft as a center, the included angle of the cross combined beam is adjusted, and the included angle adjusting range is 50-90 degrees; ③ Four adjustable movable stand columns are arranged on the cross combined beam, two adjustable movable stand columns which are arranged on the main beam in a sliding manner are symmetrical about the center of a rotating shaft, two adjustable movable stand columns which are arranged on the rotating beam in a sliding manner are symmetrical about the center of the rotating shaft, idler wheels are arranged at the top ends of the adjustable movable stand columns, and the whole adjustable movable stand column horizontally moves on the cross combined beam through the idler wheels; ④ The stepless adjustment of the demoulding diameter is realized through a column synchronous adjusting device, the column synchronous adjusting device comprises four groups of screw nuts, a big bevel gear, four small bevel gears and a second speed reducer, the screw nuts are arranged on each adjustable movable column, the screw nuts and the small bevel gears are arranged on a main beam and a rotary beam of the cross combined beam after being combined, the big bevel gears are arranged at the center of the cross combined beam, the four small bevel gears are meshed with the large bevel gear, the second speed reducer is arranged at one end of the main beam and connected with the screw rod, the adjustable movable upright posts are simultaneously opened and closed inwards or outwards under the action of the upright post synchronous adjusting device, and the distance from each adjustable movable upright post to the center of the cross combined beam is ensured to be consistent for synchronous realization, so that the diameter of the demolding device is consistent with the diameter of the coil, and the demolding safety of the coil is ensured; ⑤ The dovetail supporting plate is arranged at the bottom of the adjustable movable upright post, so that the coil can be radially and telescopically adjusted by 0-700mm, the coil can be lifted close to the inner side of the adjustable movable upright post, and the safety and reliability are ensured.
In practical application, the main beam 2, the rotating shaft 3 and the rotating beam 4 form a cross combined beam, the included angle of the cross combined beam can be adjusted within the range of 50-90 degrees, and the angle adjusting function is realized through the beam rotating adjusting device 5. The beam rotation adjusting device 5 consists of a gear ring, a gear, a first speed reducer, a motor and the like, wherein the gear ring is arranged on the main beam 2, the first speed reducer and the gear are arranged on the rotary beam 4 after being combined, the gear and the gear ring are meshed with each other, and the gear rotates along the gear ring under the action of the motor, so that the rotary beam 4 is driven to rotate by taking the rotary shaft 3 as the center, and the included angle between the beams is adjusted.
Four adjustable movable stand columns 6 are arranged on the cross combined beam, the two adjustable movable stand columns are arranged on the main cross beam 2 of the cross combined beam in a sliding mode through rollers, the two adjustable movable stand columns arranged on the main cross beam in a sliding mode are symmetrical about the center of a rotating shaft, the other two adjustable movable stand columns are arranged on the rotating cross beam 4 of the cross combined beam in a sliding mode through rollers, the two adjustable movable stand columns arranged on the rotating cross beam in a sliding mode are symmetrical about the center of the rotating shaft, the rollers are arranged at the top ends of the adjustable movable stand columns 6, the adjustable movable stand columns 6 integrally can horizontally move on the cross combined beam through the rollers, and stepless adjustment of demoulding diameters is achieved through the stand column synchronous adjusting device 7. The second speed reducer of the upright post synchronous adjusting device 7 arranged at one end of the main beam 2 provides power to drive the screw rods to rotate, the screw rods rotate to drive the corresponding bevel gears to rotate, the bevel gears drive the large bevel gears to rotate to drive the other three groups of bevel gears to rotate, then four groups of screw rods simultaneously rotate, as nuts are arranged on the adjustable movable upright posts 6, the screw rods drive the adjustable movable upright posts 6 to horizontally move, because two groups of screw rods on the same beam of the cross combined beam are opposite in screw direction, the four groups of adjustable movable upright posts 6 can simultaneously and inwards or outwards open and close, and for synchronous realization, the distance from each adjustable movable upright post 6 to the center of the cross combined beam is ensured to be consistent, so that the diameter of the demoulding device is consistent with that of a coil, and the demoulding safety of the coil is ensured.
The dovetail supporting plate 8 is arranged at the bottom of the adjustable movable upright post 6, can be radially and telescopically adjusted (coil radial direction is 0-700 mm), ensures that the coil is lifted close to the inner side of the adjustable movable upright post 6, and is safe and reliable.
When the lifting device is used in combination with a crown block, the crown block is directly hung on the lifting shaft 1, the adjustable movable upright post 6 is inserted into a coil, and the coil is adjusted, matched and fixed with the lifting device through the beam rotation adjusting device 5, the upright post synchronous adjusting device 7 and the dovetail supporting plate 8, so that demolding can be realized, the production efficiency of a coil workshop can be effectively improved, and the safety of production operation is increased.

Claims (3)

1. A large-scale transformer coil shedder, its characterized in that: the lifting device comprises a lifting shaft (1), a main beam (2), a rotating shaft (3), a rotating beam (4), a beam rotating adjusting device (5), an adjustable movable upright post (6), an upright post synchronous adjusting device (7) and a dovetail supporting plate (8), wherein the lifting shaft (1) is arranged at the top end of the main beam (2); the main beam (2) and the rotary beam (4) are arranged in a staggered manner to form a cross combined beam, and the rotary shaft (3) is arranged at the center of the cross combined beam; the cross beam rotation adjusting device (5) is arranged on the cross combination beam to realize the adjustment of the cross combination Liang Gajiao; four adjustable movable upright posts (6) are arranged, the upper ends of the four adjustable movable upright posts are provided with idler wheels (9), two adjustable movable upright posts are arranged on a main cross beam (2) of the cross combined beam in a sliding manner through the idler wheels, and the other two adjustable movable upright posts are arranged on a rotary cross beam (4) of the cross combined beam in a sliding manner through the idler wheels; the adjustable movable upright posts (6) are connected with the cross combined beam through upright post synchronous adjusting devices (7), and the upright post synchronous adjusting devices (7) realize that four adjustable movable upright posts (6) synchronously move on the cross combined beam, so that the stepless adjustable demoulding diameter is realized; the dovetail supporting plate (8) is arranged at the bottom of the adjustable movable upright post (6) and is provided with a radial telescopic structure;
The rotating shaft (3) comprises a main shaft and a bearing assembly, and the main shaft is fixed on the main beam (2); the rotary cross beam (4) is arranged on the rotary shaft (3) and rotates around the rotary shaft, so that the main cross beam (2) and the rotary cross beam (4) form a cross combined beam taking the rotary shaft (3) as a center;
the beam rotation adjusting device (5) comprises a gear ring, a gear, a first speed reducer and a motor, wherein the gear ring is arranged on the main beam (2), the first speed reducer and the gear are arranged on the rotary beam (4) after being combined, the gear and the gear ring are meshed with each other, the gear is driven by the motor to rotate along the gear ring under the action of the motor driving gear, and the rotary beam (4) is driven to rotate around the rotary shaft (3), so that the adjustment of a cross assembly Liang Gajiao is realized, and the adjustment range of the cross assembly Liang Gajiao is 50-90 degrees;
The upright post synchronous adjusting device (7) is an electric adjusting device, and the stepless adjustable range of the demoulding diameter is phi 1000-phi 3600; the upright post synchronous adjusting device (7) comprises four groups of screw nuts, a big bevel gear, four small bevel gears and a second speed reducer, wherein the screw nuts (11) are arranged on each adjustable movable upright post (6), the screw nuts (10) and the small bevel gears (13) are correspondingly arranged on the cross combination beam after being combined, the screw nuts are connected with the screw nuts in a matching mode, the big bevel gears (12) are arranged at the center of the cross combination beam, the four small bevel gears are meshed with the big bevel gears, and the second speed reducer is arranged at one end of the main cross beam (2) and connected with the four screw nuts.
2. The large transformer coil demolding device according to claim 1, wherein: the radial telescopic structure of the dovetail supporting plate (8) is adjusted in the range of 0mm-700mm in the radial direction of the coil.
3. The large transformer coil demolding method is characterized by comprising the following steps of: ① The hanging shaft is fixed with the main beam, the rotating shaft consists of a main shaft and a bearing assembly, and the main shaft is fixed on the main beam (2); the rotary cross beam (4) is arranged on the rotary shaft (3) and rotates around the rotary shaft to form a main cross beam and a cross combined beam taking the rotary shaft as the center; ② The beam rotation adjusting device consists of a gear ring, a gear, a first speed reducer and a motor, wherein the gear ring is arranged on the main beam, the first speed reducer and the gear are arranged on the rotary beam after being combined, the gear and the gear ring are meshed with each other, and the gear rotates along the gear ring under the action of the motor, so that the rotary beam is driven to rotate by taking a rotary shaft as a center, the included angle of the cross combined beam is adjusted, and the included angle adjusting range is 50-90 degrees; ③ Four adjustable movable stand columns are arranged on the cross combined beam, two adjustable movable stand columns which are arranged on the main beam in a sliding manner are symmetrical about the center of a rotating shaft, two adjustable movable stand columns which are arranged on the rotating beam in a sliding manner are symmetrical about the center of the rotating shaft, idler wheels are arranged at the top ends of the adjustable movable stand columns, and the whole adjustable movable stand column horizontally moves on the cross combined beam through the idler wheels; ④ The stepless adjustment of the demoulding diameter is realized through a column synchronous adjusting device, the column synchronous adjusting device comprises four groups of screw nuts, a big bevel gear, four small bevel gears and a second speed reducer, the screw nuts are arranged on each adjustable movable column, the screw nuts and the small bevel gears are arranged on a main beam and a rotary beam of the cross combined beam after being combined, the big bevel gears are arranged at the center of the cross combined beam, the four small bevel gears are meshed with the large bevel gear, the second speed reducer is arranged at one end of the main beam and connected with the screw rod, the adjustable movable upright posts are simultaneously opened and closed inwards or outwards under the action of the upright post synchronous adjusting device, and the distance from each adjustable movable upright post to the center of the cross combined beam is ensured to be consistent for synchronous realization, so that the diameter of the demolding device is consistent with the diameter of the coil, and the demolding safety of the coil is ensured; ⑤ The dovetail supporting plate is arranged at the bottom of the adjustable movable upright post, so that the coil can be radially and telescopically adjusted by 0-700mm, the coil can be lifted close to the inner side of the adjustable movable upright post, and the safety and reliability are ensured.
CN201911341623.4A 2019-12-24 2019-12-24 Large transformer coil demolding device and method Active CN110970214B (en)

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Publication number Priority date Publication date Assignee Title
CN118004870B (en) * 2024-03-26 2024-10-15 武汉市华源达科技有限公司 Lifting and feeding device of stamping die
CN119132825B (en) * 2024-11-13 2025-02-18 汉中新环干式变压器有限责任公司 Large transformer coil demolding device and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210865906U (en) * 2019-12-24 2020-06-26 保定天威保变电气股份有限公司 Large-scale transformer coil shedder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210865906U (en) * 2019-12-24 2020-06-26 保定天威保变电气股份有限公司 Large-scale transformer coil shedder

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