CN216562747U - Turning device of transformer core - Google Patents
Turning device of transformer core Download PDFInfo
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- CN216562747U CN216562747U CN202122671854.0U CN202122671854U CN216562747U CN 216562747 U CN216562747 U CN 216562747U CN 202122671854 U CN202122671854 U CN 202122671854U CN 216562747 U CN216562747 U CN 216562747U
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Abstract
The utility model relates to a turnover device of a transformer iron core, which comprises a supporting bottom plate, wherein an L-shaped turnover table is arranged above the supporting bottom plate, the transformer iron core is placed at the top of the L-shaped turnover table, two supporting rods which are symmetrically arranged front and back are fixed at the top of the supporting bottom plate, the supporting rods are vertically and upwards arranged, a turnover shaft is fixed between the tops of the two supporting rods, two hinged supports which are symmetrically arranged front and back are fixed at the outer side of the lower part of the vertical section of the L-shaped turnover table, the hinged supports are sleeved outside the turnover shaft and are rotatably connected with the turnover shaft, a turnover oil cylinder is arranged between the bottom of the horizontal section of the L-shaped turnover table and the top of the supporting bottom plate, and two ends of the turnover oil cylinder are respectively hinged with the L-shaped turnover table and the supporting bottom plate; and a pressing mechanism for pressing the top of the transformer iron core is arranged on the inner side of the upper part of the vertical section of the L-shaped overturning platform. The turnover efficiency is high, uses manpower sparingly, and can compress tightly fixedly transformer core at the upset in-process, prevents that the transformer core from taking place to empty the facilitate use when overturning.
Description
Technical Field
The utility model belongs to the technical field of transformer production, and particularly relates to a turnover device for a transformer iron core.
Background
The transformer iron core mostly adopts a stacked core type assembly mode, when the transformer iron core is assembled, silicon steel sheets with the thickness of 0.23-0.5mm are stacked on a stacking table, after the silicon steel sheets are all stacked, the whole transformer iron core is turned over for 90 degrees, an upper yoke is removed, and components such as a coil and the like are installed. When overturning the transformer wire core, the mode of manual overturning or overturning through a crane is mostly adopted in the prior art. The problems of high labor intensity and low working efficiency exist in manual turnover; when the crane is used for overturning, a spacious operation space is needed, the crane is not suitable for a narrow and small work place, and in the overturning process, the transformer iron core is easy to incline, the stability is poor, and certain potential safety hazards exist. The two turning modes can not well meet the use requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a turnover device of a transformer iron core, which is used for solving the technical problems of high labor intensity, small application range and poor stability of a turnover mode of the transformer iron core in the prior art.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the turnover device comprises a horizontally arranged supporting base plate, wherein an L-shaped turnover table is arranged above the supporting base plate, a transformer core is placed at the top of the L-shaped turnover table, two supporting rods which are symmetrically arranged front and back are fixed at the top of the supporting base plate, the supporting rods are vertically upwards arranged, a turnover shaft is fixedly connected between the tops of the two supporting rods, two hinged supports which are symmetrically arranged front and back are fixed at the outer side of the lower part of the vertical section of the L-shaped turnover table, the hinged supports are sleeved outside the turnover shaft and are rotatably connected with the turnover shaft, a turnover oil cylinder is arranged between the bottom of the horizontal section of the L-shaped turnover table and the top of the supporting base plate, and two ends of the turnover oil cylinder are respectively hinged with the L-shaped turnover table and the supporting base plate; and a pressing mechanism for pressing the top of the transformer iron core is arranged on the inner side of the upper part of the vertical section of the L-shaped overturning platform.
Preferably, a first supporting column and a second supporting column for supporting the L-shaped overturning platform are respectively fixed at two ends of the top of the supporting base plate, and the first supporting column and the second supporting column are both vertically arranged upwards; when the L-shaped overturning platform is in a horizontal state, the bottom of the horizontal section of the L-shaped overturning platform is attached to the top of the second supporting column; when the L-shaped overturning platform is overturned to a vertical state, the bottom of the vertical section of the L-shaped overturning platform is attached to the top of the first supporting column.
Preferably, the pressing mechanism comprises a horizontally arranged mounting plate fixed on the inner side of the upper part of the vertical section of the L-shaped overturning platform, a rotating sleeve penetrating through the mounting plate is rotatably connected onto the mounting plate, the outer part of the rotating sleeve is rotatably connected with the mounting plate through a bearing, the top end of the rotating sleeve extends to the upper part of the mounting plate and is fixedly connected with a limiting ring, the bottom end of the rotating sleeve extends to the lower part of the mounting plate and is fixedly connected with a first driven bevel gear, a threaded hole is formed in the first driven bevel gear, a vertically arranged first threaded rod is in threaded connection with the inner part of the rotating sleeve, the top end of the first threaded rod extends upwards to the upper part of the mounting plate, the bottom end of the first threaded rod penetrates through the first driven bevel gear and is in threaded connection with the first driven bevel gear, and the bottom end of the first threaded rod extends to the lower part of the first driven bevel gear and is fixedly provided with a horizontally arranged first pressing plate; the bottom of mounting panel is fixed with the mounting disc, the mounting disc is sealed all around, the box structure that inside cavity set up, the inside of mounting disc is connected with the first transmission shaft that runs through the mounting disc through the bearing rotation, the one end of first transmission shaft extends and the first initiative bevel gear of fixedly connected with to the direction that is close to first threaded rod, first initiative bevel gear meshes with first driven bevel gear mutually, the other end of first transmission shaft extends the first crank of fixedly connected with to the direction that deviates from first threaded rod.
Preferably, a first rubber pad is fixed on one side of the first pressing plate close to the transformer core.
Preferably, the top of the horizontal section of the L-shaped overturning platform is fixed with a vertical positioning plate which is arranged upwards at one end deviating from the vertical section of the L-shaped overturning platform, and an auxiliary pressing mechanism for pressing and positioning the side surface of the transformer iron core is arranged on the inner side of the positioning plate.
Preferably, the auxiliary pressing mechanism comprises a mounting box fixed on the inner side of the positioning plate, the mounting box is of a box body structure with the periphery sealed and the inside hollow, a horizontally arranged guide sleeve is fixed on one side of the mounting box close to the transformer core, the end part of the guide sleeve is open, the inner part of the guide sleeve is hollow, a second threaded rod is arranged in the guide sleeve, one end of the second threaded rod is rotatably connected to the inner wall of the mounting box through a bearing, the other end of the second threaded rod penetrates through the mounting box and extends to the outer part of the guide sleeve, a movable sleeve is arranged between the inner part of the guide sleeve and the outer part of the second threaded rod, the second threaded rod is in threaded connection with the inner wall of the movable sleeve, two sides of the outer part of the movable sleeve are fixedly provided with symmetrically arranged limit blocks, a limit groove is formed in the inner wall of the guide sleeve along the length direction of the guide sleeve, the limit blocks are slidably connected in the limit groove, and one end of the movable sleeve, which deviates from the mounting box, is fixedly connected with a second compression plate; one side of the inside of mounting box rotates through the bearing and is connected with the second transmission shaft that runs through the mounting box, and the one end of second transmission shaft extends to the mounting box outside and is fixed with the second crank, and the other end of second transmission shaft extends to the mounting box inside and is fixed with second initiative bevel gear, is located the cover and is equipped with the driven bevel gear of second on the inside second threaded rod of mounting box, and the driven bevel gear of second meshes with second initiative bevel gear mutually.
Preferably, a second rubber pad is fixed on one side of the second pressing plate close to the transformer core.
The utility model has the beneficial effects that: simple structure, the cost of manufacture is low, through setting up the supporting baseplate, L type roll-over table, the trip shaft, upset hydro-cylinder and hold-down mechanism, thereby the output extension of upset hydro-cylinder drives L type roll-over table along trip shaft upset 90 degrees, make L type roll-over table change vertical state into by the horizontality, and then realize the upset to transformer core, realize the upset operation through hydraulic control system, need not artifical manual upset, use manpower sparingly, improve production efficiency, whole device occupation space is little, it is wide to be suitable for the occasion, and because hold-down mechanism's existence, can compress tightly fixedly transformer core, avoid it to take place to empty after upset to vertical state, improve stability and security, and convenient to use, can be fine satisfy the user demand.
Drawings
FIG. 1 is a schematic structural diagram of the present invention with the transformer core in a horizontal state;
FIG. 2 is a schematic structural view of the present invention with the transformer core in a vertical position;
fig. 3 is a schematic structural diagram of the auxiliary pressing mechanism.
Reference numerals: 1-supporting base plate, 2-L type roll-over table, 3-transformer core, 4-supporting rod, 5-roll-over shaft, 6-hinged support, 7-roll-over oil cylinder, 8-first supporting column, 9-second supporting column, 10-mounting plate, 11-rotating sleeve, 12-spacing ring, 13-first driven bevel gear, 14-first threaded rod, 15-first pressing plate, 16-first rubber pad, 17-mounting disc, 18-first transmission shaft, 19-first driving bevel gear, 20-first crank, 21-positioning plate, 22-mounting box, 23-guide sleeve, 24-second threaded rod, 25-movable sleeve, 26-spacing block, 27-spacing groove, 28-second pressing plate, 29-second rubber pad, 30-second transmission shaft, 31-second crank, 32-second driving bevel gear, 33-second driven bevel gear.
Detailed Description
As shown in fig. 1 and 2, the transformer core overturning device comprises a horizontally arranged supporting base plate 1, an L-shaped overturning platform 2 is arranged above the supporting base plate 1, a transformer core 3 is placed at the top of the L-shaped overturning platform 2, when the L-shaped overturning platform 2 is located in a horizontal state in fig. 1, a section of the L-shaped overturning platform 2 parallel to the supporting base plate 1 is set as a horizontal section of the L-shaped overturning platform, a section of the L-shaped overturning platform perpendicular to the supporting base plate 1 is set as a vertical section of the L-shaped overturning platform, and after the L-shaped overturning platform 2 is overturned for 90 degrees, the vertical section of the L-shaped overturning platform is overturned to be parallel to the supporting base plate 1. The top of supporting baseplate 1 is fixed with two bracing pieces 4 that the front and back symmetry set up, bracing piece 4 is vertical upwards to be set up, fixedly connected with trip shaft 5 between the top of two bracing pieces 4, the outside of 2 vertical section lower parts of L type roll-over table is fixed with two free bearings 6 that the front and back symmetry set up, the free bearing 6 cover is established outside roll-over shaft 5 and is connected with roll-over shaft 5 rotation, be provided with upset hydro-cylinder 7 between the bottom of 2 horizontal segments of L type roll-over table and the top of supporting baseplate 1, the both ends of upset hydro-cylinder 7 respectively with L type roll-over table 2, supporting baseplate 1 is articulated. The inner side of the upper part of the vertical section of the L-shaped overturning platform 2 is provided with a pressing mechanism for pressing the top of the transformer iron core 3. When the output end of the overturning oil cylinder 7 contracts, the L-shaped overturning platform 2 is kept in a horizontal state under the common support of the support rod 4 and the overturning oil cylinder 7; when the output end of the turnover oil cylinder 7 extends, the output end of the turnover oil cylinder 7 pushes the L-shaped turnover table 2 to turn over for 90 degrees along the turnover shaft 5, so that the L-shaped turnover table 2 is changed from a horizontal state to a vertical state, and the L-shaped turnover table 2 is kept in the vertical state under the common support of the support rod 4 and the turnover oil cylinder 7. The two ends at the top of the supporting base plate 1 are respectively fixed with a first supporting column 8 and a second supporting column 9 which are used for supporting the L-shaped overturning platform 2, the first supporting column 8 and the second supporting column 9 are vertically arranged upwards, and the height of the first supporting column 8 is larger than that of the second supporting column 9. When the L-shaped overturning platform 2 is in a horizontal state, the bottom of the horizontal section of the L-shaped overturning platform 2 is attached to the top of the second supporting column 9; when the L-shaped overturning platform 2 is overturned to a vertical state, the bottom of the vertical section of the L-shaped overturning platform 2 is attached to the top of the first supporting column 8. Through setting up first support column 8 and second support column 9, carry out the auxiliary stay to L type roll-over table 2, guarantee the stability of this device structure.
As shown in fig. 1 and 2, the hold-down mechanism includes a mounting plate 10 fixed on the inner side of the upper portion of the vertical section of the L-shaped turning table 2, a rotating sleeve 11 penetrating through the mounting plate 10 is rotatably connected on the mounting plate 10, the outer portion of the rotating sleeve 11 is rotatably connected with the mounting plate 10 through a bearing, the top end of the rotating sleeve 11 extends to the upper portion of the mounting plate 10 and is fixedly connected with a limiting ring 12, the firmness of connection between the rotating sleeve 11 and the mounting plate 10 is increased, and the rotating sleeve 11 and the bearing are prevented from falling down after being loosened. The bottom of rotating sleeve 11 extends to the below of mounting panel 10 and the first driven bevel gear 13 of fixedly connected with, the inside threaded hole that has seted up of first driven bevel gear 13, the inside threaded connection of rotating sleeve 11 has the first threaded rod 14 of vertical setting, the top of first threaded rod 14 upwards extends to the top of mounting panel 10, the bottom of first threaded rod 14 run through first driven bevel gear 13 and with first driven bevel gear 13 threaded connection, the bottom of first threaded rod 14 extends to the below of first driven bevel gear 13 and is fixed with the first pressure strip 15 that the level set up, one side that first pressure strip 15 is close to transformer core 3 is fixed with first rubber pad 16, prevent to cause the damage to transformer core 3. The bottom of mounting panel 10 is fixed with mounting disc 17, mounting disc 17 is sealed all around, the box structure that inside cavity set up, the inside of mounting disc 17 is connected with the first transmission shaft 18 that runs through mounting disc 17 through the bearing rotation, the one end of first transmission shaft 18 extends and the first initiative bevel gear 19 of fixedly connected with to the direction that is close to first threaded rod 14, first initiative bevel gear 19 meshes with first driven bevel gear 13 mutually, the other end of first transmission shaft 18 extends the first crank 20 of fixedly connected with to the direction that deviates from first threaded rod 14. When the device is used, the first crank handle 20 is rotated to sequentially drive the first transmission shaft 18, the first driving bevel gear 19 and the first driven bevel gear 13 to rotate, the rotating sleeve 11 is rotatably connected with the mounting plate 10 through a bearing, and the rotating sleeve 11 and the first driven bevel gear 13 are both in threaded connection with the first threaded rod 14, so that the first driven bevel gear 13 rotates to drive the first threaded rod 14 to move up and down along the rotating sleeve 11, the first threaded rod 14 drives the first pressing plate 15 to move up and down, and finally, the transformer iron core 3 is pressed or loosened. Convenient operation and labor saving.
As shown in fig. 1 and 2, a positioning plate 21 which is vertically and upwardly arranged is fixed at one end of the top of the horizontal section of the L-shaped overturning platform 2, which is away from the vertical section of the L-shaped overturning platform, and an auxiliary pressing mechanism for pressing and positioning the side surface of the transformer core 3 is arranged on the inner side of the positioning plate 21. As shown in fig. 3, the auxiliary pressing mechanism includes a mounting box 22 fixed on the inner side of the positioning plate 21, the mounting box 22 is a box structure with sealed periphery and hollow interior, a horizontally arranged guide sleeve 23 is fixed on one side of the mounting box 22 close to the transformer core 3, the end of the guide sleeve 23 is open, the interior is hollow, a second threaded rod 24 is arranged inside the guide sleeve 23, one end of the second threaded rod 24 is rotatably connected to the inner wall of the mounting box 22 through a bearing, the other end of the second threaded rod 24 penetrates through the mounting box 22 and extends to the exterior of the guide sleeve 23, a movable sleeve 25 is arranged between the interior of the guide sleeve 23 and the exterior of the second threaded rod 24, the second threaded rod 24 is in threaded connection with the inner wall of the movable sleeve 25, symmetrically arranged limiting blocks 26 are fixed on two sides of the exterior of the movable sleeve 25, a limiting groove 27 is formed on the inner wall of the guide sleeve 23 along the length direction thereof, the limiting blocks 26 are slidably connected inside the limiting groove 27, preventing relative rotation between the movable sleeve 25 and the guide sleeve 23. One end of the movable sleeve 25 departing from the mounting box 22 is fixedly connected with a second pressing plate 28, and one side of the second pressing plate 28 close to the transformer core 3 is fixed with a second rubber pad 29 to prevent abrasion to the surface of the transformer core 3. The inside one side of mounting box 22 is connected with the second transmission shaft 30 that runs through mounting box 22 through the bearing rotation, and the one end of second transmission shaft 30 extends to the mounting box 22 outside and is fixed with second crank 31, and the other end of second transmission shaft 30 extends to the mounting box 22 inside and is fixed with second drive bevel gear 32, is located the cover and is equipped with second driven bevel gear 33 on the inside second threaded rod 24 of mounting box 22, and second driven bevel gear 33 meshes with second drive bevel gear 32 mutually. Through rotating second crank 31, drive second transmission shaft 30 in proper order, second drive bevel gear 32, second driven bevel gear 33 rotates, thereby it rotates to drive second threaded rod 24, because the inner wall threaded connection of second threaded rod 24 and movable sleeve 25, and because stopper 26's limiting displacement, thereby second threaded rod 24 rotates and drives movable sleeve 25 and move along the length direction of second threaded rod 24, and then drive second pressure strip 28 to the direction motion that is close to or deviates from transformer core 3, thereby the realization compresses tightly or loosens the side of transformer core 3.
The working principle and the working process of the utility model are as follows: when the transformer iron core 3 needs to be turned over, the first crank handle 20 is rotated in the forward direction to sequentially drive the first transmission shaft 18, the first driving bevel gear 19 and the first driven bevel gear 13 to rotate, the first driven bevel gear 13 rotates to drive the first threaded rod 14 to move downwards along the rotating sleeve 11, and the first threaded rod 14 drives the first pressing plate 15 to move downwards to press the top of the transformer iron core 3; forward rotation second crank 31, drive second transmission shaft 30 in proper order, second drive bevel gear 32, second driven bevel gear 33 rotates, thereby it rotates to drive second threaded rod 24, thereby second threaded rod 24 rotates and drives the direction motion of movable sleeve 25 to being close to transformer core 3, thereby realize compressing tightly fixedly to transformer core 3's side, it finishes to fix, start upset hydro-cylinder 7, the output of upset hydro-cylinder 7 extends gradually, the output of upset hydro-cylinder 7 promotes L type roll-over table 2 along 5 upsets 90 degrees of trip shaft, make L type roll-over table 2 change vertical state into by the horizontality, the bottom of the vertical section of L type roll-over table 2 is laminated with the top of first support column 8 mutually, finally realize the upset to transformer core 3.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a turning device of transformer core which characterized in that: the transformer core overturning device comprises a horizontally arranged supporting base plate, wherein an L-shaped overturning platform is arranged above the supporting base plate, a transformer core is placed at the top of the L-shaped overturning platform, two supporting rods which are symmetrically arranged front and back are fixed at the top of the supporting base plate, the supporting rods are vertically and upwards arranged, an overturning shaft is fixedly connected between the tops of the two supporting rods, two hinged supports which are symmetrically arranged front and back are fixed at the outer side of the lower part of the vertical section of the L-shaped overturning platform, the hinged supports are sleeved outside the overturning shaft and are rotatably connected with the overturning shaft, an overturning oil cylinder is arranged between the bottom of the horizontal section of the L-shaped overturning platform and the top of the supporting base plate, and two ends of the overturning oil cylinder are respectively hinged with the L-shaped overturning platform and the supporting base plate; and a pressing mechanism for pressing the top of the transformer iron core is arranged on the inner side of the upper part of the vertical section of the L-shaped overturning platform.
2. The transformer core overturning device according to claim 1, wherein: a first supporting column and a second supporting column which are used for supporting the L-shaped overturning platform are respectively fixed at two ends of the top of the supporting base plate, and the first supporting column and the second supporting column are both vertically and upwards arranged; when the L-shaped overturning platform is in a horizontal state, the bottom of the horizontal section of the L-shaped overturning platform is attached to the top of the second supporting column; when the L-shaped overturning platform is overturned to a vertical state, the bottom of the vertical section of the L-shaped overturning platform is attached to the top of the first supporting column.
3. The transformer core overturning device according to claim 2, wherein: the pressing mechanism comprises a horizontally arranged mounting plate fixed on the inner side of the upper part of a vertical section of the L-shaped overturning platform, a rotating sleeve penetrating through the mounting plate is rotatably connected onto the mounting plate, the outer part of the rotating sleeve is rotatably connected with the mounting plate through a bearing, the top end of the rotating sleeve extends to the upper part of the mounting plate and is fixedly connected with a limiting ring, the bottom end of the rotating sleeve extends to the lower part of the mounting plate and is fixedly connected with a first driven bevel gear, a threaded hole is formed in the first driven bevel gear, a vertically arranged first threaded rod is in threaded connection with the inner part of the rotating sleeve, the top end of the first threaded rod extends upwards to the upper part of the mounting plate, the bottom end of the first threaded rod penetrates through the first driven bevel gear and is in threaded connection with the first driven bevel gear, and the bottom end of the first threaded rod extends to the lower part of the first driven bevel gear and is fixedly provided with a horizontally arranged first pressing plate; the bottom of mounting panel is fixed with the mounting disc, the mounting disc is sealed all around, the box structure that inside cavity set up, the inside of mounting disc is connected with the first transmission shaft that runs through the mounting disc through the bearing rotation, the one end of first transmission shaft extends and the first initiative bevel gear of fixedly connected with to the direction that is close to first threaded rod, first initiative bevel gear meshes with first driven bevel gear mutually, the other end of first transmission shaft extends the first crank of fixedly connected with to the direction that deviates from first threaded rod.
4. The transformer core overturning device according to claim 3, wherein: one side of the first pressing plate close to the transformer iron core is fixed with a first rubber pad.
5. The transformer core overturning device according to claim 2, wherein: one end of the top of the horizontal section of the L-shaped overturning platform, which deviates from the vertical section of the horizontal section of the L-shaped overturning platform, is fixed with a vertical positioning plate which is arranged upwards, and the inner side of the positioning plate is provided with an auxiliary pressing mechanism which is used for pressing and positioning the side surface of the transformer iron core.
6. The transformer core overturning device according to claim 5, wherein: the auxiliary pressing mechanism comprises a mounting box fixed on the inner side of the positioning plate, the mounting box is of a box body structure with sealed periphery and hollow interior, a horizontally arranged guide sleeve is fixed on one side of the mounting box close to the transformer core, the end part of the guide sleeve is open, the inner part of the guide sleeve is hollow, a second threaded rod is arranged in the guide sleeve, one end of the second threaded rod is rotatably connected to the inner wall of the mounting box through a bearing, the other end of the second threaded rod penetrates through the mounting box and extends to the outer part of the guide sleeve, a movable sleeve is arranged between the inner part of the guide sleeve and the outer part of the second threaded rod, the second threaded rod is in threaded connection with the inner wall of the movable sleeve, two sides of the outer part of the movable sleeve are fixedly provided with symmetrically arranged limit blocks, a limit groove is formed in the inner wall of the guide sleeve along the length direction of the guide sleeve, the limit blocks are slidably connected in the limit groove, and one end of the movable sleeve, which deviates from the mounting box, is fixedly connected with a second compression plate; one side of the inside of mounting box rotates through the bearing and is connected with the second transmission shaft that runs through the mounting box, and the one end of second transmission shaft extends to the mounting box outside and is fixed with the second crank, and the other end of second transmission shaft extends to the mounting box inside and is fixed with second initiative bevel gear, is located the cover and is equipped with the driven bevel gear of second on the inside second threaded rod of mounting box, and the driven bevel gear of second meshes with second initiative bevel gear mutually.
7. The transformer core overturning device according to claim 6, wherein: and a second rubber pad is fixed on one side of the second pressing plate, which is close to the transformer iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122671854.0U CN216562747U (en) | 2021-11-03 | 2021-11-03 | Turning device of transformer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122671854.0U CN216562747U (en) | 2021-11-03 | 2021-11-03 | Turning device of transformer core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216562747U true CN216562747U (en) | 2022-05-17 |
Family
ID=81570006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122671854.0U Active CN216562747U (en) | 2021-11-03 | 2021-11-03 | Turning device of transformer core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216562747U (en) |
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2021
- 2021-11-03 CN CN202122671854.0U patent/CN216562747U/en active Active
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