Transformer iron core drying device

Abstract

The utility model provides a transformer iron core drying device which comprises a drying box, a base plate and a first motor, an opening is formed in one side of the drying box, a plurality of heating plates are arranged on the inner wall of the drying box, the base plate is rotationally arranged in the drying box, a rotating assembly for driving the base plate to rotate is further arranged in the drying box, and mounting plates are symmetrically arranged at the top of the base plate. A placing frame is rotationally arranged between the two mounting plates through rotating shafts, one ends of a plurality of telescopic mechanisms are arranged at the top of the placing frame, a fixing plate is erected at the other ends of the telescopic mechanisms, a first motor is arranged on the side wall of one mounting plate, and the output end of the first motor is fixedly connected with the corresponding rotating shaft; the problems that in the prior art, after a transformer iron core is placed on a plate, the contact face of the transformer iron core and the plate is shielded, heat generated by a heating plate is difficult to act on the face, and the drying efficiency of the transformer iron core in the area is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer cores, in particular to a transformer core drying device. Background Art

[0002] The transformer core is one of the core components of the transformer. It is generally made of silicon steel sheets with high magnetic conductivity. Its main function is to provide a magnetic flux path and efficiently convert electrical energy between windings. During the manufacture of the transformer, the core will undergo storage, transportation and paint dipping. During these processes, the core will inevitably absorb moisture and impurities. These moisture and impurities may cause partial discharge and insulation aging during the operation of the transformer. Therefore, the transformer core needs to be dried.

[0003] At present, when drying the transformer core, the transformer core is generally placed on a placement plate, and then the transformer is placed in a drying box and dried by the heating plate in the drying box. For example, Chinese patent publication number CN219531405U discloses a drying box for drying the transformer core, which places the transformer core on top of the support plate, pushes the connecting plate to fix the transformer core through a telescopic rod, and then drives the threaded rod to rotate to move the bottom plate, thereby sending the transformer into the box, and finally starts the heating plate and the fan to accelerate the air flow in the box, so that the heat generated by the heating plate quickly flows to the surface of the transformer, thereby achieving the purpose of quickly drying the transformer core and improving the drying efficiency. Then, the transformer core is placed on the support plate, and its bottom is always in contact with the support plate. The surface in contact with the support plate is difficult to receive the heat generated by the heating plate, resulting in slower drying of the contact surface of the core and the support plate. Utility Model Content

[0004] In response to the shortcomings of the prior art, the utility model provides a transformer core drying device, which solves the problem in the prior art that after the transformer core is placed on the plate, the contact surface with the plate is blocked, making it difficult for the heat generated by the heating plate to act on this surface, resulting in slow drying efficiency of the transformer core in this area.

[0005] According to an embodiment of the utility model, a transformer core drying device includes a drying box, a chassis and a first motor. An opening is provided on one side of the drying box, and a closed door for opening or closing the opening is hingedly provided at the opening. A plurality of heating plates are provided on the inner wall of the drying box. The chassis is rotatably arranged in the drying box. A rotating assembly for driving the chassis to rotate is also provided in the drying box. Mounting plates are symmetrically provided on the top of the chassis. A placement frame is rotatably provided between the two installations via a rotating shaft. One end of a plurality of telescopic mechanisms is provided on the top of the placement frame, and a fixed plate is mounted on the other end of the plurality of telescopic mechanisms. The telescopic mechanism is used to drive the fixed plate close to or away from the placement frame. The first motor is provided on the side wall of one of the mounting plates, and the output end of the first motor is fixedly connected to the corresponding rotating shaft.

[0006] Compared with the existing technology, the utility model has the following beneficial effects: by placing the iron core on the top of the placement frame, the rotating assembly drives the chassis and the placement frame and other components to rotate as a whole, so that each surface of the iron core can be evenly heated by the heating plate. After the iron core is dried for a period of time, the telescopic mechanism is started to allow the fixed plate to press the iron core onto the placement frame, and then the first motor drives the placement frame to rotate 180 degrees, so that the surface of the iron core that was originally in contact with the top of the placement frame is transferred to the top, so that the heating plate can quickly dry the area on this side, thereby avoiding the problem of slow drying caused by partial area of ​​the iron core being blocked.

[0007] Furthermore, the rotating assembly includes: a second motor, the second motor is fixedly arranged at the bottom of the inner wall of the drying box, and the output end of the second motor is fixedly connected to the bottom of the chassis.

[0008] Furthermore, a plurality of interlaced dividing strips are provided on one side of the fixing plate facing the placement frame.

[0009] Furthermore, a plurality of through holes are provided on the placement frame and the fixing plate.

[0010] Furthermore, it also includes a slide bar, and mounting grooves are opened on the two opposite inner walls of the placement frame. Both ends of the slide bar are slidably connected to the corresponding mounting grooves. A cleaning cloth is provided at the bottom of the slide bar, and the cleaning cloth abuts against the top surface of the placement frame. The placement frame is also provided with a driving component that drives the slide bar to move along the top surface of the placement frame.

[0011] Furthermore, the driving assembly includes: a screw rod, which is horizontally and rotatably arranged in one of the mounting grooves, the screw rod is threadedly connected to the slide bar, and a third motor is fixedly provided on the placement frame, and the output end of the third motor extends into the mounting groove and is fixedly connected to one end of the screw rod.

[0012] Furthermore, it also includes a receiving groove, which is opened on one side of the inner wall of the placement frame and is connected to the installation groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a front view of an embodiment of the utility model with the closed door opened.

[0015] Figure 3 This is a diagram of the internal structure of a drying oven according to an embodiment of the present utility model.

[0016] Figure 4 This is a schematic diagram of the installation of the separator bar according to an embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of the screw rod installation embodiment of the present utility model.

[0018] In the above drawings: 1. Drying box; 2. Closed door; 3. Heating plate; 4. Chassis; 5. Mounting plate; 6. Placement frame; 7. Telescopic mechanism; 8. Fixed plate; 9. First motor; 10. Second motor; 11. Dividing bar; 12. Through hole; 13. Sliding bar; 14. Cleaning cloth; 15. Screw rod; 16. Third motor; 17. Receiving slot. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1As shown in FIG3 , an embodiment of the utility model proposes a transformer core drying device, comprising a drying box 1, a chassis 4 and a first motor 9. An opening is provided on one side of the drying box 1, and a closed door 2 for opening or closing the opening is hingedly provided at the opening. A plurality of heating plates 3 are provided on the inner wall of the drying box 1. The chassis 4 is rotatably arranged in the drying box 1. A rotating assembly for driving the chassis 4 to rotate is also provided in the drying box 1. A mounting plate 5 is symmetrically provided on the top of the chassis 4. A placement frame 6 is rotatably provided between the two installations through a rotating shaft. One end of a plurality of telescopic mechanisms 7 is provided on the top of the placement frame 6, and a fixed plate 8 is mounted on the other end of the plurality of telescopic mechanisms 7. The telescopic mechanism 7 is used to drive the fixed plate 8 close to or away from the placement frame 6. The first motor 9 is provided on the side wall of one of the mounting plates 5, and the output end of the first motor 9 is fixedly connected to the corresponding rotating shaft. When drying the transformer core, open the closed door 2, place the core to be dried on the top of the placement frame 6, then close the closed door 2, start the heating plate 3, in this embodiment, the inner wall and the top of the drying box 1 are provided with a heating plate 3, the heating plate 3 generates heat to dry the core on the placement frame 6, the heating plate 3 is a prior art, and the specific working principle is not described in detail here. After the core is dried for a period of time, start the telescopic mechanism 7, which can be any one of a telescopic rod, a cylinder, a hydraulic cylinder, an electric push rod, etc. The telescopic mechanism 7 drives the fixed plate 8 to move toward the placement frame 6, so that the fixed plate 8 presses the core on the placement frame 6 into the placement frame. The iron core is restricted from moving on the placement frame 6, and then the first motor 9 is started. The first motor 9 drives the placement frame 6 to rotate, so that the placement frame 6 rotates 180 degrees. At this time, the fixed plate 8 is located directly below the placement frame 6, and the telescopic mechanism 7 is started again. The telescopic mechanism 7 pushes the fixed plate 8 away from the placement frame 6. At this time, the iron core is located on the top of the fixed plate 8, that is, the bottom surface of the iron core that originally contacted the top of the placement frame 6 becomes the top surface, so that it is no longer blocked, so that the heat emitted by the electric heating plate can dry the surface. By converting the top and bottom surfaces of the iron core through this device, the heat generated by the electric heating plate can act on all surfaces of the iron core, avoiding the problem of slow drying due to partial areas of the iron core being blocked.

[0021] like Figure 2 As shown in FIG. 3 , the rotating assembly further includes a second motor 10, which is fixedly mounted on the bottom of the inner wall of the drying box 1, and the output end of the second motor 10 is fixedly connected to the bottom of the chassis 4. During the drying process of the iron core, the second motor 10 is started, and the second motor 10 drives the chassis 4 to rotate, so that the iron core in the placement frame 6 also rotates circumferentially with the chassis 4, so that different surfaces of the iron core can be evenly baked by the electric heating plate, while avoiding the problem of partial areas of the iron core being exposed to direct heating from the electric heating plate for a long time, resulting in excessive temperature in that area and causing local overheating.

[0022] like Figure 4As shown, further, a plurality of interlaced dividing strips 11 are provided on the side of the fixed plate 8 facing the placement frame 6. A plurality of iron cores are placed in the placement frame 6. In order to prevent the iron cores from sliding and colliding with each other during the flipping of the iron cores, the iron cores are separated by providing dividing strips 11 on the fixed plate 8. When the fixed plate 8 presses the iron cores onto the placement frame 6, the displacement of the iron cores is blocked by the dividing strips 11, thereby avoiding collisions between the iron cores and protecting the iron cores. Preferably, the dividing strips 11 are provided according to the number of iron cores on the placement frame 6, so that the areas separated by the interlaced dividing strips 11 correspond to the iron cores.

[0023] like Figure 3 As shown, further, a plurality of through holes 12 are provided on the placement frame 6 and the fixing plate 8. Providing the through holes 12 on the placement frame 6 and the fixing plate 8 can facilitate the timely and rapid transfer of heat generated by the electric heating plate to the surface of the iron core, and the blocking of the heat generated by the electric heating plate on the top of the drying box 1 by the fixing plate 8 or the placement frame 6 is greatly reduced.

[0024] like Figure 5 As shown, further, it also includes a slide 13, and mounting grooves are provided on the two opposite inner walls of the placement frame 6. Both ends of the slide 13 are slidably connected to the corresponding mounting grooves. A cleaning cloth 14 is provided at the bottom of the slide 13, and the cleaning cloth 14 abuts against the top surface of the placement frame 6. The placement frame 6 is also provided with a driving component that drives the slide 13 to move along the top surface of the placement frame 6. During the drying process of the iron core, moisture or other impurities on the iron core may accumulate on the top of the placement frame 6. If these residues are not cleaned in time, they will affect the drying effect of the iron core or impurities will adhere to the iron core and affect the quality of the transformer. Before each drying of the iron core, the driving component is started, and the driving component drives the slide 13 to move horizontally along the top surface of the placement frame 6. During the movement of the slide 13, the cleaning cloth 14 at the bottom of the slide 13 cleans the top surface of the placement frame 6, so that the residues from the previous drying of the iron core will not affect the subsequently placed iron core.

[0025] like Figure 5 As shown, the drive assembly further includes a screw rod 15, which is horizontally and rotatably disposed in one of the mounting slots and is threadedly connected to the slide bar 13. A third motor 16 is fixedly mounted on the placement frame 6, and the output end of the third motor 16 extends into the mounting slot and is fixedly connected to one end of the screw rod 15. When cleaning the top of the placement frame 6, the third motor 16 is started, which drives the screw rod 15 to rotate. The rotation of the screw rod 15 drives the slide bar 13, which is threadedly connected thereto, to move horizontally along the slot. As the slide bar 13 moves horizontally, the cleaning cloth 14 at the bottom of the slide bar 13 cleans any residue on the top of the placement frame 6.

[0026] like Figure 3As shown, the frame 6 further includes a receiving groove 17, which is formed on one side of the inner wall of the frame 6 and communicates with the mounting groove. Specifically, the receiving groove 17 is perpendicular to the mounting groove and accommodates the slide 13. When the slide 13 is not in use, the slide 13 can be stored in the receiving groove 17 so that it does not occupy the space at the top of the frame 6, making it easier to place more iron cores on the top of the frame 6.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A transformer core drying device, characterized in that: include: A drying box (1) is provided with an opening on one side of the drying box (1), a closed door (2) is hingedly provided at the opening for opening or closing the opening, and a plurality of heating plates (3) are provided on the inner wall of the drying box (1); A chassis (4) is rotatably arranged in a drying box (1). A rotating assembly for driving the chassis (4) to rotate is also provided in the drying box (1). A mounting plate (5) is symmetrically provided on the top of the chassis (4). A placement frame (6) is rotatably provided between the two mounting plates via a rotating shaft. One end of a plurality of telescopic mechanisms (7) is provided on the top of the placement frame (6). A fixed plate (8) is mounted on the other end of the plurality of telescopic mechanisms (7). The telescopic mechanisms (7) are used to drive the fixed plate (8) to move closer to or away from the placement frame (6). A first motor (9) is provided on a side wall of one of the mounting plates (5), and an output end of the first motor (9) is fixedly connected to a corresponding rotating shaft.

2. The transformer core drying device according to claim 1, characterized in that: The rotating assembly comprises a second motor (10), the second motor (10) is fixedly arranged at the bottom of the inner wall of the drying box (1), and the output end of the second motor (10) is fixedly connected to the bottom of the chassis (4).

3. The transformer core drying device according to claim 1, characterized in that: A plurality of interlaced partition strips (11) are provided on one side of the fixing plate (8) facing the placement frame (6).

4. The transformer core drying device according to claim 1, characterized in that: A plurality of through holes (12) are provided on the placement frame (6) and the fixing plate (8).

5. The transformer core drying device according to claim 1, characterized in that: The device further comprises a slide bar (13), two opposite inner walls of the placement frame (6) are provided with mounting grooves, both ends of the slide bar (13) are slidably connected to the corresponding mounting grooves, a cleaning cloth (14) is provided at the bottom of the slide bar (13), the cleaning cloth (14) is in contact with the top surface of the placement frame (6), and a driving component for driving the slide bar (13) to move along the top surface of the placement frame (6) is also provided on the placement frame (6).

6. The transformer core drying device according to claim 5, characterized in that: The driving assembly comprises a screw rod (15), the screw rod (15) is horizontally and rotatably arranged in one of the mounting grooves, the screw rod (15) is threadedly connected to the slide bar (13), a third motor (16) is fixedly arranged on the placement frame (6), and the output end of the third motor (16) extends into the mounting groove and is fixedly connected to one end of the screw rod (15).

7. The transformer core drying device according to claim 6, characterized in that: The utility model further comprises a receiving groove (17), which is opened on one side of the inner wall of the placement frame (6), and the receiving groove (17) is communicated with the installation groove.

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