Transformer shell paint dipping device

Abstract

The invention discloses a transformer shell paint dipping device which comprises an equipment frame composed of a vertical beam and a cross beam connected with the vertical beam; the sliding rail piece and the linear module are installed on the application cross beam, the application linear module comprises a driving motor, a lead screw shaft seat, a rotating lead screw and a threaded sliding block in threaded connection with the application rotating lead screw, and the application threaded sliding block is in sliding fit with the application sliding rail piece; a supporting beam of the application sliding rail piece is fixedly connected with a threaded sliding block of the application linear module, a descending device is installed on the application supporting beam, and a transformer frame is hung on the descending device. A paint dipping pool and a paint dipping liquid tank are arranged below the application equipment frame, and a connecting pipeline is arranged between the application paint dipping pool and the paint dipping liquid tank. According to the paint dipping device for the transformer shell, the efficiency of paint dipping operation is improved, the manual intervention link is reduced through cooperative action of all the parts, the processes of feeding, positioning, paint dipping, resetting and the like are smoothly linked, and the single-batch operation time is shortened.

Description

Technical Field

[0001] This application relates to the technical field of transformer manufacturing, and more particularly to a transformer casing impregnation apparatus. Background Technology

[0002] In the existing technology, although simple lifting equipment has been used to assist in the impregnation of transformer shells, there are still obvious limitations: during the operation, the shell needs to be moved to the vicinity of the impregnation tank by a crane or forklift, and then the lifting device needs to be manually operated to adjust the height and horizontal position of the shell. During the process, the equipment needs to be repeatedly started and stopped to calibrate the alignment. The positioning process alone requires 2-3 people to work together, which takes a long time.

[0003] Furthermore, the various processes lack a linkage mechanism. The lifting equipment, paint dipping tank, and fixing devices operate independently. After the material is loaded, the equipment switches need to be switched manually. After the paint dipping is completed, the lifting device needs to be manually operated to remove the shell. There are pauses in the process connection. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this application is to propose a transformer shell impregnation device, which improves the efficiency of impregnation operation. Through the coordinated action of each part, the manual intervention links are reduced, and the processes of feeding, positioning, impregnation and resetting are smoothly connected, thus shortening the operation time of a single batch.

[0006] To achieve the above objectives, this application proposes a transformer casing impregnation apparatus, comprising: The equipment frame consists of vertical beams and horizontal beams connecting the vertical beams; The slide rail and linear module are mounted on the crossbeam. The linear module includes a drive motor, a lead screw shaft seat, a rotating lead screw, and a threaded slider threadedly connected to the rotating lead screw. The threaded slider is in sliding engagement with the slide rail. The support beam of the slide rail component is fixedly connected to the threaded slider of the linear module. A lowering device is installed on the support beam, and a transformer frame is suspended by the lowering device. Below the equipment frame are a paint immersion tank and a paint immersion liquid tank, and a connecting pipe is provided between the paint immersion tank and the paint immersion liquid tank.

[0007] The transformer casing impregnation device of this application improves the efficiency of impregnation operations. Through the coordinated action of each part, it reduces manual intervention and makes the processes of feeding, positioning, impregnation, and resetting smooth, thus shortening the operation time of a single batch.

[0008] In addition, the transformer casing impregnation apparatus proposed in this application may also have the following additional technical features: Specifically, the slide rail component includes: Parallel sliding rails; A slider that slides in conjunction with the slide rail; A support beam connecting the slider; The support beam is fixedly connected to the threaded slider of the linear module.

[0009] Specifically, in the linear module: The output end of the drive motor is connected to the rotating lead screw, and the rotating lead screw is mounted on the lead screw shaft seat; The threaded slider is screwed to the rotating lead screw and slides along the slide rail as the rotating lead screw rotates.

[0010] Specifically, the descent device includes: The descending track is installed on the support beam; A descent cylinder that slides along the descent track, the telescopic end of the descent cylinder being connected to the transformer frame.

[0011] Specifically, the transformer frame includes: Base frame; The connecting frame is provided on the base frame; The upper frame opposite to the connecting frame; The connecting rod that connects the upper frame and the base frame; The upper frame is connected to the lowering cylinder of the lowering device.

[0012] Specifically, the impregnation tank is equipped with fasteners for fixing the transformer housing, the fasteners including: Screw seat; A fixing screw that is threaded into the screw seat; A hexagonal screw head is provided at one end of the fixing screw; A fixing head is connected to the other end of the fixing screw via a bearing.

[0013] Specifically, the connecting pipe is used to connect the impregnation tank and the impregnation liquid tank to realize the transfer of the impregnation liquid.

[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a transformer housing impregnation apparatus according to an embodiment of this application; Figure 2This is a schematic diagram of the structure of the equipment frame and its connecting components in a transformer housing impregnation apparatus according to an embodiment of this application; Figure 3 This is a schematic diagram of the slide rail and its connecting components in a transformer housing impregnation apparatus according to an embodiment of this application; Figure 4 This is a schematic diagram of the lowering device in a transformer housing impregnation apparatus according to an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the transformer frame and its connecting components in a transformer housing impregnation apparatus according to an embodiment of this application; Figure 6 This is a schematic diagram of the impregnation tank assembly in a transformer housing impregnation apparatus according to an embodiment of this application; Figure 7 This is a schematic diagram of the impregnation tank assembly in a transformer housing impregnation apparatus according to an embodiment of this application.

[0016] As shown in the figure: 1. Equipment frame; 2. Slide rail; 3. Linear module; 4. Lowering device; 5. Transformer frame; 6. Fixing component; 101. Vertical beam; 102. Horizontal beam; 201. Slide rail; 202. Slider; 203. Support beam; 301. Drive motor; 302. Lead screw bearing; 303. Rotating lead screw; 401. Lowering track; 402. Lowering cylinder; 501. Base frame; 502. Connecting frame; 503. Upper frame; 504. Connecting rod; 601. Screw seat; 602. Fixing screw; 603. Hexagonal screw head; 604. Bearing; 605. Fixing head; 701. Impregnation tank; 702. Impregnation liquid tank. Detailed Implementation

[0017] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Rather, embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0018] The transformer housing impregnation apparatus of this application embodiment will now be described with reference to the accompanying drawings.

[0019] like Figure 1-7 As shown in the embodiment of this application, the transformer housing impregnation apparatus is characterized by comprising: The equipment frame 1 consists of a vertical beam 101 and a horizontal beam 102 connecting the vertical beam 101.

[0020] The slide rail component 2 and the linear module 3 are mounted on the crossbeam 102. The linear module 3 includes a drive motor 301, a lead screw bearing 302, a rotating lead screw 303, and a threaded slider that is threadedly connected to the rotating lead screw 303. The threaded slider slides in cooperation with the slide rail component 2.

[0021] The support beam 203 of the slide rail component 2 is fixedly connected to the threaded slider of the linear module 3. The lowering device 4 is installed on the support beam 203, and the transformer frame 5 is suspended from the lowering device 4.

[0022] Below the equipment frame 1 is a paint immersion tank 701 and a paint immersion liquid tank 702, and a connecting pipe is provided between the paint immersion tank 701 and the paint immersion liquid tank 702.

[0023] like Figure 1-7 As shown, the equipment frame 1 is constructed as a three-dimensional frame using multiple vertical beams 101 and horizontal beams 102. Slide rail components 2 and linear modules 3 are installed in parallel on the horizontal beams 102. After the drive motor 301 of the linear module 3 starts, it drives the rotating lead screw 303 to rotate around the lead screw bearing 302. The threaded slider, due to its screw connection to the rotating lead screw 303 and its sliding engagement with the slide rail component 2, moves horizontally along the slide rail direction, thereby causing the fixed support beam 203 to move synchronously. The lowering device 4 below the support beam 203 suspends the transformer frame 5. The impregnation tank 701 at the bottom of the equipment frame 1 is connected to the impregnation liquid tank 702 via a corrosion-resistant connecting pipe. During operation, after the transformer frame 5 carries the transformer shell, the linear module 3 moves it horizontally to directly above the impregnation tank 701. The lowering device 4 drives the transformer frame 5 to descend, immersing the shell in the impregnation liquid within the impregnation tank 701, completing the impregnation operation. The impregnation liquid can be replenished by circulating between the impregnation tank 701 and the liquid tank 702 through the connecting pipe.

[0024] In one embodiment of this application, the slide rail component 2 includes: a slide rail 201 arranged in parallel.

[0025] A slider 202 that slides in conjunction with the slide rail 201. A support beam 203 that connects to the slider 202. The support beam 203 is fixedly connected to the threaded slider of the linear module 3.

[0026] like Figure 3 As shown, the slide rail 201 of the slide rail component 2 consists of two parallel rectangular guide rails, which are fixed to the crossbeam 102 by bolts. The slider 202 is a sliding block nested on the slide rail 201, and its bottom is welded to both ends of the support beam 203. The middle part of the support beam 203 is fixed to the threaded slider of the linear module 3 through a flange. When the rotating screw 303 of the linear module 3 rotates, the threaded slider drives the support beam 203 to slide smoothly along the slide rail 201. With the guiding effect of the slider 202, the horizontal displacement accuracy of the transformer frame 5 is ensured, and the shell displacement is avoided during varnishing.

[0027] In one embodiment of this application, in the linear module 3: The output end of the drive motor 301 is connected to the rotating lead screw 303, which is mounted on the lead screw bearing 302.

[0028] The threaded slider is screwed to the rotating lead screw 303 and slides along the slide rail 2 as the rotating lead screw 303 rotates.

[0029] like Figure 3 As shown, the drive motor 301 of the linear module 3 is a servo motor, and its output shaft is rigidly connected to one end of the rotating lead screw 303 via a coupling. Both ends of the rotating lead screw 303 are mounted on the lead screw bearing 302 via bearings. The threaded slider has a trapezoidal threaded hole inside that matches the rotating lead screw 303. When the drive motor 301 rotates forward / reverse, the rotating lead screw 303 rotates synchronously, and the threaded slider moves along the lead screw axis. Simultaneously, through cooperation with the slider 202 of the slide rail component 2, it achieves a straight reciprocating motion without deflection, driving the support beam 203 and the lowering device 4 to precise displacement.

[0030] In one embodiment of this application, the lowering device 4 includes: The descending track 401 is installed on the support beam 203.

[0031] The lowering cylinder 402 slides along the lowering track 401, and the telescopic end of the lowering cylinder 402 is connected to the transformer frame 5.

[0032] like Figure 4 As shown, the lowering track 401 of the lowering device 4 is a vertically arranged dovetail guide rail, fixed to the bottom surface of the support beam 203 by bolts. The lowering cylinder 402 is a hydraulic cylinder, its cylinder body is fixed to the slider on the lowering track 401 by bolts, and the extension end of the piston rod is hinged to the upper frame 503 of the transformer frame 5. When the lowering cylinder 402 is filled with oil / returns with oil, the cylinder body slides up and down along the lowering track 401, driving the transformer frame 5 to precisely lift and lower by 0.5-2m with a positioning accuracy of ±0.2mm, realizing the action of immersing or removing the transformer shell from the impregnation tank 701.

[0033] In one embodiment of this application, the transformer frame 5 includes: Base frame 501.

[0034] A connecting bracket 502 is mounted on the base frame 501.

[0035] The upper frame 503 is opposite to the connecting frame 502.

[0036] Connecting rod 504 connecting upper frame 503 and base frame 501.

[0037] The upper frame 503 is connected to the lowering cylinder 402 of the lowering device 4.

[0038] like Figure 5As shown, the base frame 501 of the transformer frame 5 is a rectangular frame used to support the transformer shell. The connecting frame 502 consists of two vertical channel steels, welded and fixed to both sides of the base frame 501. The upper frame 503 is a rectangular plate parallel to the base frame 501, connected to the base frame 501 by four connecting rods 504 and high-strength bolts, forming a stable cubic frame. The top of the upper frame 503 is hinged to the piston rod of the lowering cylinder 402 of the lowering device 4, facilitating fine-tuning of the angle during hoisting. When the lowering cylinder 402 extends or retracts, the entire transformer frame 5 moves up and down accordingly, ensuring that the transformer shell is smoothly immersed in the impregnation tank 701 and avoiding collisions.

[0039] In one embodiment of this application, the impregnation tank 701 is provided with a fixing member for fixing the transformer housing, the fixing member including: Screw seat 601.

[0040] A fixing screw 602 that is threaded into the screw seat 601.

[0041] A hexagonal screw head 603 is provided at one end of the fixed screw 602.

[0042] The fixing head 605 is connected to the other end of the fixing screw 602 via the bearing 604.

[0043] like Figure 6 As shown, among the fixing components in the impregnation tank 701, the screw seat 601 is a steel sleeve with internal threads, welded to the inner wall support of the impregnation tank 701. The fixing screw 602 is a trapezoidal screw, screwed into the internal thread hole of the screw seat 601. The hexagonal screw head 603 is a regular hexagonal prism, integrally formed with one end of the fixing screw 602, facilitating wrench operation. The fixing head 605 is an arc-shaped clamp, connected to the other end of the fixing screw 602 via a deep groove ball bearing 604. When the hexagonal screw head 603 is turned, the fixing screw 602 moves axially along the screw seat 601, while the fixing head 605 only moves translationally due to the constraint of the bearing 604, thereby clamping the bottom or side of the transformer housing and preventing the housing from shaking during impregnation.

[0044] In one embodiment of this application, a connecting pipe is used to connect the impregnation tank 701 and the impregnation liquid tank 702 to realize the transfer of impregnation liquid.

[0045] like Figure 7 As shown, the connecting pipe is a solvent-resistant fluororubber tube or a stainless steel metal tube, with flange joints at both ends connecting to the outlet / inlet of the impregnation tank 701 and the impregnation solution tank 702, respectively. When the impregnation solution in the impregnation tank 701 is insufficient, the impregnation solution tank 702 supplies liquid to the impregnation tank 701 through the connecting pipe. After the impregnation operation is completed, the liquid in the impregnation tank 701 can be pumped back to the solution tank 702 through the pipe, realizing the recycling of the impregnation solution.

[0046] 1. During the material preparation stage, the operator places the transformer casing to be impregnated onto the base frame 501 of the transformer frame 5. The casing is initially positioned using the connecting frame 502 and connecting rod 504. The bottom of the casing fits snugly against the base frame 501, while the sides are left with a fine-tuning gap from the connecting frame 502. At this time, the impregnation liquid tank 702 delivers impregnation liquid to the impregnation pool 701 through the connecting pipe until the liquid level in the impregnation pool 701 reaches the preset height.

[0047] 2. During the horizontal movement and positioning stage, the drive motor 301 of the linear module 3 is activated, and the motor output drives the rotating lead screw 303 to rotate around the lead screw bearing 302. Since the threaded slider is screwed to the rotating lead screw 303 and fixedly connected to the slider 202 of the slide rail component 2, the threaded slider translates axially along the rotating lead screw 303, while simultaneously driving the support beam 203 to slide smoothly along the slide rail 201. The lowering device 4 below the support beam 203 and the suspended transformer frame 5 move together until the transformer housing is precisely positioned directly above the impregnation tank 701.

[0048] 3. During the descent and impregnation stage, the descent cylinder 402 of the descent device 4 is activated, and the cylinder body slides vertically downward along the descent track 401. Its telescopic end drives the transformer frame 5 to descend synchronously. As the descent process progresses, the transformer shell is gradually immersed in the impregnation liquid in the impregnation tank 701 until the part of the shell to be impregnated is completely submerged. The descent stroke is controlled by a preset program and can be adjusted according to the shell size.

[0049] 4. During the fixing stage of impregnation, after the casing is immersed in the impregnation solution, the operator uses a wrench to turn the hexagonal screw head 603 of the fixing component inside the impregnation tank 701, causing the fixing screw 602 to move axially along the screw seat 601. Since the fixing head 605 is connected to the fixing screw 602 through the bearing 604, the fixing head 605 only moves horizontally and does not rotate, eventually fitting and clamping against the side or bottom of the transformer casing. The clamping force is controlled at 300-800N to avoid casing deformation or shaking and to ensure uniform impregnation.

[0050] 5. During the rising and resetting phase, the varnishing is completed. The varnishing time is set according to process requirements, typically 5-15 minutes. After this, the hexagonal screwdriver 603 is turned in the reverse direction, and the fixing head 605 loosens the housing. The lowering cylinder 402 reverses its movement, causing the transformer frame 5 and the housing to rise along the lowering track 401 until the housing is completely removed from the varnish surface of the varnish-draining tank 701, leaving a gap for varnish removal. Subsequently, the drive motor 301 of the linear module 3 reverses its direction, and the threaded slider drives the support beam 203 and the housing to move back to the initial loading position along the slide rail 201.

[0051] 6. During the paint impregnation solution circulation stage, if the paint level in the impregnation tank 701 drops due to evaporation or loss, the paint impregnation solution tank 702 will automatically replenish the impregnation tank 701 through a connecting pipe. If the impregnation solution needs to be replaced, the waste liquid in the impregnation tank 701 can be pumped back to the liquid tank 702 for centralized treatment through a connecting pipe, realizing the recycling and environmental protection of the impregnation solution.

[0052] The entire working process achieves automation, high precision, and high efficiency in transformer shell impregnation through the stable support of the equipment frame 1, the precise translation of the linear module 3, the controllable lifting and lowering of the descent device 4, the reliable clamping of the fixing parts, and the circulation system of the impregnation liquid.

[0053] In summary, the transformer casing impregnation device of this application improves the efficiency of impregnation operations. Through the coordinated action of each part, it reduces manual intervention and makes the processes of feeding, positioning, impregnation, and resetting smooth, thus shortening the operation time of a single batch.

[0054] It improves the stability of the impregnation process, effectively reduces the shaking of the transformer shell during movement and impregnation, helps ensure the uniformity of impregnation, and reduces the problem of insufficient or excessive impregnation in some areas due to shell displacement.

[0055] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A transformer casing impregnation device, characterized in that, include: The equipment frame (1) consists of a vertical beam (101) and a horizontal beam (102) connecting the vertical beam (101); The slide rail (2) and the linear module (3) are mounted on the crossbeam (102). The linear module (3) includes a drive motor (301), a lead screw bearing (302), a rotating lead screw (303), and a threaded slider that is threadedly connected to the rotating lead screw (303). The threaded slider is in sliding engagement with the slide rail (2). The support beam (203) of the slide rail component (2) is fixedly connected to the threaded slider of the linear module (3), and a lowering device (4) is installed on the support beam (203), and a transformer frame (5) is suspended by the lowering device (4). Below the equipment frame (1) is a paint immersion tank (701) and a paint immersion liquid tank (702), and a connecting pipe is provided between the paint immersion tank (701) and the paint immersion liquid tank (702).

2. The transformer casing impregnation apparatus according to claim 1, characterized in that, The slide rail component (2) includes: Parallel sliding rails (201); A slider (202) that slides in cooperation with the slide rail (201); Support beam (203) connecting the slider (202); The support beam (203) is fixedly connected to the threaded slider of the linear module (3).

3. The transformer casing impregnation apparatus according to claim 1, characterized in that, In the linear module (3): The output end of the drive motor (301) is connected to the rotating lead screw (303), and the rotating lead screw (303) is mounted on the lead screw bearing (302). The threaded slider is screwed to the rotating lead screw (303) and slides along the slide rail (2) as the rotating lead screw (303) rotates.

4. The transformer casing impregnation apparatus according to claim 1, characterized in that, The lowering device (4) includes: The descending track (401) is installed on the support beam (203); A descending cylinder (402) slides along the descending track (401), and the telescopic end of the descending cylinder (402) is connected to the transformer frame (5).

5. The transformer casing impregnation apparatus according to claim 1, characterized in that, The transformer frame (5) includes: Base frame (501); A connecting frame (502) is provided on the base frame (501); The upper frame (503) is opposite to the connecting frame (502); A connecting rod (504) connecting the upper frame (503) and the base frame (501); The upper frame (503) is connected to the lowering cylinder (402) of the lowering device (4).

6. The transformer casing impregnation apparatus according to claim 1, characterized in that, The impregnation tank (701) is provided with a fixing component for fixing the transformer housing, the fixing component including: Screw seat (601); A fixing screw (602) that is threadedly engaged with the screw seat (601); A hexagonal screw head (603) is provided at one end of the fixing screw (602); The fixing head (605) is connected to the other end of the fixing screw (602) via a bearing (604).

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