Butt joint device of transformer oil tank magnetic shielding cylinder

Abstract

The utility model relates to a butt joint device of a transformer oil tank magnetic shielding cylinder, and belongs to the technical field of electric power equipment installation. Comprising a base fixing plate, side plates are symmetrically arranged at the two ends of the base fixing plate, a lower supporting transverse unit is arranged on the top face of the base fixing plate, a magnetic shielding cylinder is supported by the lower supporting transverse unit, and lower supporting lateral units are symmetrically arranged on the two sides of the lower supporting transverse unit; rotating arms are hinged to the top ends of the side plates respectively; the rotating arms are respectively provided with telescopic pieces which are obliquely arranged, the end parts of the telescopic pieces are respectively provided with upper support lateral units, and the rotating arms rotate around hinge points to drive the telescopic pieces and the upper support lateral rollers to synchronously rotate; and the telescopic piece drives the upper support lateral unit to be obliquely close to or far away from the top of the magnetic shielding cylinder. Accurate butt joint of the adjacent magnetic shielding cylinders is facilitated, and it is guaranteed that the width of the abutted seam is within the specified range.

Description

Technical Field

[0001] The utility model relates to a docking device for a transformer oil tank magnetic shielding cylinder, belonging to the technical field of power equipment installation. Background Art

[0002] During the operation of the transformer, the main magnetic leakage of the coil will generate iron loss in the oil tank wall, which will not only increase the additional loss of the transformer, but also cause the oil tank wall to overheat. Large-capacity transformers often add magnetic shielding along the leakage direction on the inner wall of the oil tank to conduct the main leakage magnetic flux. The magnetic shielding material is electrical steel strip. By utilizing its excellent magnetic conductivity, the leakage magnetic flux can pass through the magnetic shielding instead of the oil tank wall, thereby reducing the loss in the oil tank wall and avoiding local overheating. At the same time, it also has a very obvious effect on reducing the additional loss of the transformer. There are also integrated magnetic shielding cylinders. This type of magnetic shielding cylinder has better shielding performance, but it is heavy and difficult to install.

[0003] During the hoisting process of the magnetic shielding cylinder, adjacent magnetic shielding cylinders need to be accurately docked to ensure that the ends of adjacent magnetic shielding cylinders are completely aligned, and the width of the joints of the magnetic shielding cylinders should be within the specified range. It is difficult to ensure the accuracy of the alignment only by cooperating with the gantry crane and the construction vehicle, and it is even more impossible to ensure that the width of the joints is within the specified range. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a docking device for the magnetic shielding cylinder of a transformer oil tank in view of the above-mentioned prior art, which has a simple structure and is easy to operate, and can achieve accurate docking of adjacent magnetic shielding cylinders and ensure that the joint width is within a specified range.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problems is: a docking device for the magnetic shielding cylinder of a transformer oil tank, comprising a base fixing plate, vertically arranged side plates are symmetrically arranged at the left and right ends of the base fixing plate, a lower supporting transverse unit is arranged on the top surface of the base fixing plate, the magnetic shielding cylinder is supported by the lower supporting transverse unit, and lower supporting lateral units are symmetrically arranged on both sides of the lower supporting transverse unit; the top ends of the side plates are respectively hinged to rotating arms, and the two rotating arms are symmetrically arranged; obliquely arranged telescopic parts are respectively arranged on the rotating arms, and upper supporting lateral units are respectively arranged at the ends of the telescopic parts, and the rotating arms rotate around the hinge points to drive the telescopic parts and the upper supporting lateral rollers to rotate synchronously; the telescopic parts drive the upper supporting lateral units to be obliquely close to the top of the magnetic shielding cylinder, so that the magnetic shielding cylinder slides on the lower supporting transverse units and is close to one of the lower supporting lateral units; or the telescopic parts drive the upper supporting lateral units to be obliquely away from the top of the magnetic shielding cylinder.

[0006] The lower support transverse unit comprises two lower support bearing mounting seats which are arranged at intervals, and a lower support transverse roller is arranged between the two lower support bearing mounting seats.

[0007] The lower support lateral unit includes a lower support lateral bearing mounting seat, the lower support lateral bearing mounting seat is fixed to the inner side of the side plate, and a lower support lateral roller is provided between the lower support lateral bearing mounting seat and the lower support bearing mounting seat on the corresponding side.

[0008] The upper supporting lateral unit comprises an upper supporting lateral mounting frame, and the upper supporting lateral mounting frame is provided with an upper supporting lateral roller.

[0009] The outer side surfaces of the tops of the side plates are respectively provided with arc-shaped extension plates, the arc-shaped extension plates are provided with arc-shaped guide grooves, the end of the sliding shaft is arranged in the arc-shaped guide grooves, and the sliding shaft is fixedly connected to the other end of the rotating arm.

[0010] The two arc-shaped extension plates are fixedly connected by a connecting beam, a guide seat is arranged at the bottom of the connecting beam, and slope surfaces are symmetrically arranged at the bottom of the guide seat. Slide rails are respectively arranged on the slope surfaces, and sliding blocks are respectively arranged on the outer sides of the upper support lateral mounting frames, and the sliding blocks are arranged in the sliding rails.

[0011] A supporting rib plate is also arranged between the base fixing plate and the side plate.

[0012] Compared with the prior art, the utility model has the advantages of: a docking device for the magnetic shielding cylinder of a transformer oil tank, wherein the lower supporting transverse roller realizes the bottom support of the magnetic shielding cylinder, and the lower supporting lateral roller realizes the lateral support of the bottom of the magnetic shielding cylinder. Since the magnetic shielding cylinder can only contact one lower supporting lateral roller in most cases, a linear push is generated by an electric push rod, so that the upper supporting lateral roller contacts the magnetic shielding cylinder obliquely from top to bottom, so that the magnetic shielding cylinder can slide and contact a certain lower supporting lateral roller, thereby avoiding the displacement of the magnetic shielding cylinder during advancement, realizing the rolling limit and support of most magnetic shielding cylinders, facilitating the accurate docking of adjacent magnetic shielding cylinders, and ensuring that the joint width is within the specified range. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a working schematic diagram of a docking device for a transformer oil tank magnetic shielding cylinder according to an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of a docking device for a transformer oil tank magnetic shielding cylinder according to an embodiment of the utility model;

[0015] Figure 3 for Figure 2 A side view of the middle guide seat;

[0016] Figure 4is a schematic diagram of the structure of the upper support lateral unit;

[0017] In the figure, 1 is a base fixing plate, 2 is a side plate, 3 is a lower support bearing mounting seat, 4 is a lower support transverse roller, 5 is a lower support lateral roller, 6 is a support rib plate, 7 is an arc-shaped extension plate, 8 is a connecting beam, 9 is a rotating shaft mounting seat, 10 is a rotating arm, 11 is a sliding shaft, 12 is an electric push rod, 13 is an upper support lateral mounting frame, 14 is an upper support lateral roller, 15 is a guide seat, 16 is an arc-shaped guide groove, 17 is a slope surface, 18 is a slide rail, 19 is a slider, and 20 is a magnetic shielding cylinder. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] like Figure 1 , 2 As shown, a docking device for a transformer oil tank magnetic shielding cylinder in this embodiment requires the coordinated use of multiple docking devices during actual use, and multiple docking devices are linearly spaced to achieve the support of a longer magnetic shielding cylinder and subsequent docking operations. The docking device includes a base fixing plate 1, and vertically arranged side plates 2 are symmetrically arranged at the left and right ends of the base fixing plate 1. A supporting rib plate 6 is arranged between the base fixing plate 1 and the side plate 2 to strengthen the structural strength of the base fixing plate 1 and the side plate 2. A lower support transverse unit is arranged on the top surface of the base fixing plate 1, and the lower support transverse unit is used to support the horizontally arranged magnetic shielding cylinder 20. Lower support lateral units are symmetrically arranged on both sides of the lower support transverse unit, and the lower support lateral units are arranged on both sides of the magnetic shielding cylinder 20. A rotating shaft mounting seat 9 is respectively arranged at the top of the side plate 2, a horizontally arranged rotating shaft is passed through the rotating shaft mounting seat 9, a rotating arm 10 is sleeved on the rotating shaft, and the two rotating arms 10 are symmetrically arranged; an inclined electric push rod 12 is respectively arranged on the rotating arm 10, and an upper supporting lateral unit is respectively arranged at the end of the electric push rod 12. The rotating arm 10 rotates in a circle around the rotating shaft mounting seat 9 driven by the rotating shaft, driving the electric push rod 12 and the upper supporting lateral unit to rotate synchronously. The electric push rod 12 drives the upper supporting lateral unit to obliquely approach the top of the magnetic shielding cylinder, so that the upper supporting lateral unit obliquely contacts the magnetic shielding cylinder and pushes the magnetic shielding cylinder to slide on the lower supporting transverse unit, so that the magnetic shielding cylinder is pressed against one of the lower supporting lateral units, thereby limiting the magnetic shielding cylinder; or the electric push rod drives the upper supporting lateral unit away from the magnetic shielding cylinder, so as to facilitate the removal of the magnetic shielding cylinder.

[0020] The lower support transverse unit includes two lower support bearing mounting seats 3 arranged at intervals, and a lower support transverse roller 4 is arranged between the two lower support bearing mounting seats 3, so that the lower support transverse roller 4 can rotate in the two lower support bearing mounting seats 3. The lower support lateral unit includes a lower support lateral bearing mounting seat, which is fixed to the inner side of the side plate 2, and an inclined lower support lateral roller 5 is arranged between the lower support lateral bearing mounting seat and the lower support bearing mounting seat on the corresponding side, so that the lower support lateral roller 5 can rotate in the lower support bearing mounting seat and the lower support lateral bearing mounting seat. Figure 4 As shown, the upper supporting lateral unit comprises a U-shaped upper supporting lateral mounting frame 13, and an upper supporting lateral roller 14 is rotatably mounted at the opening of the upper supporting lateral mounting frame 13 through a pin shaft.

[0021] The outer side surfaces of the top of the side panels 2 are respectively provided with arc-shaped extension plates 7, and arc-shaped guide grooves 16 are provided on the sides of the arc-shaped extension plates 7. The end of the sliding shaft 11 is arranged in the arc-shaped guide grooves 16. The sliding shaft 11 is fixedly connected to the other end of the rotating arm 10. When the rotating arm 10 rotates, the arc-shaped extension plates 7 cooperate with the arc-shaped guide grooves 16 to improve the stability of the circular rotation of the sliding shaft 11, and then improve the stability of the electric push rod 12 during the rotation process. A horizontally arranged connecting beam 8 is provided between the two arc-shaped extension plates 7. The two ends of the connecting beam 8 are fixedly connected to the arc-shaped extension plates 7 by welding. The connecting beam 8 increases the structural strength of the two arc-shaped extension plates 7. Figure 3 As shown, a guide seat 15 is provided at the bottom of the connecting beam 8, and a slope surface 17 is symmetrically provided at the bottom of the guide seat 15, and a slide rail 18 is respectively provided on the slope surface 17. Slide blocks 19 are respectively provided on the outer side surfaces of the upper support lateral mounting frame 13, and the slide blocks 19 are arranged in the corresponding slide rails 18. When the electric push rod pushes the upper support lateral mounting frame to move obliquely, the slide block moves along the slide rail, and the lateral deflection stress of the electric push rod is reduced by the cooperation between the slide block and the slide rail, so that the magnetic shielding cylinder avoids excessive wear on the electric push rod during the advancement process.

[0022] The lower supporting transverse roller realizes the bottom support of the magnetic shielding cylinder, and the lower supporting lateral roller realizes the lateral support of the bottom of the magnetic shielding cylinder. Since the magnetic shielding cylinder can only contact one lower supporting lateral roller in most cases, the electric push rod generates a linear push, so that the upper supporting lateral roller contacts the magnetic shielding cylinder obliquely from top to bottom, so that the magnetic shielding cylinder can slide and contact a certain lower supporting lateral roller, thereby avoiding the magnetic shielding cylinder from deflecting during advancement, realizing the rolling limit and support of most magnetic shielding cylinders, facilitating the accurate docking of adjacent magnetic shielding cylinders, and ensuring that the joint width is within the specified range.

[0023] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A docking device for a transformer oil tank magnetic shielding cylinder, characterized in that: It includes a base fixing plate, vertically arranged side plates are symmetrically arranged at the left and right ends of the base fixing plate, a lower support transverse unit is arranged on the top surface of the base fixing plate, the magnetic shielding cylinder is supported on the lower support transverse unit, and lower support lateral units are symmetrically arranged on both sides of the lower support transverse unit; the top ends of the side plates are respectively hinged to rotating arms, and the two rotating arms are symmetrically arranged; obliquely arranged telescopic parts are respectively arranged on the rotating arms, and upper support lateral units are respectively arranged at the ends of the telescopic parts, and the rotating arms rotate around the hinge points to drive the telescopic parts and the upper support lateral rollers to rotate synchronously; the telescopic parts drive the upper support lateral units to obliquely approach the top of the magnetic shielding cylinder, so that the magnetic shielding cylinder slides on the lower support transverse unit and sticks to one of the lower support lateral units; or the telescopic parts drive the upper support lateral units to obliquely move away from the top of the magnetic shielding cylinder.

2. The docking device for a transformer oil tank magnetic shielding cylinder according to claim 1, characterized in that: The lower support transverse unit comprises two lower support bearing mounting seats which are arranged at intervals, and a lower support transverse roller is arranged between the two lower support bearing mounting seats.

3. The docking device for the magnetic shielding cylinder of a transformer oil tank according to claim 2, characterized in that: The lower support lateral unit includes a lower support lateral bearing mounting seat, the lower support lateral bearing mounting seat is fixed to the inner side of the side plate, and a lower support lateral roller is provided between the lower support lateral bearing mounting seat and the lower support bearing mounting seat on the corresponding side.

4. The docking device for a transformer oil tank magnetic shielding cylinder according to claim 1, characterized in that: The upper supporting lateral unit comprises an upper supporting lateral mounting frame, and the upper supporting lateral mounting frame is provided with an upper supporting lateral roller.

5. The docking device for the magnetic shielding cylinder of a transformer oil tank according to claim 4, characterized in that: The outer side surfaces of the tops of the side plates are respectively provided with arc-shaped extension plates, the arc-shaped extension plates are provided with arc-shaped guide grooves, the end of the sliding shaft is arranged in the arc-shaped guide grooves, and the sliding shaft is fixedly connected to the other end of the rotating arm.

6. The docking device for the magnetic shielding cylinder of a transformer oil tank according to claim 5, characterized in that: The two arc-shaped extension plates are fixedly connected by a connecting beam, a guide seat is arranged at the bottom of the connecting beam, and slope surfaces are symmetrically arranged at the bottom of the guide seat. Slide rails are respectively arranged on the slope surfaces, and sliding blocks are respectively arranged on the outer sides of the upper support lateral mounting frames, and the sliding blocks are arranged in the sliding rails.

7. The docking device for a transformer oil tank magnetic shielding cylinder according to claim 1, characterized in that: A supporting rib plate is also arranged between the base fixing plate and the side plate.

Images