An oil-immersed transformer with convenient disassembly and assembly

Abstract

The present invention provides an oil-immersed transformer which is easy to assemble and disassemble, comprising a box device, a sliding rod device and a supporting device. The box device comprises a box body and a box cover. A limiting groove is provided on the box body. The sliding rod device comprises a main shaft arm and a secondary shaft arm rotatably mounted on the main shaft arm. The end of the main shaft arm corresponding to the secondary shaft arm presents a quarter arc structure. The secondary shaft arm can form a straight plate structure after rotating around the main shaft arm. The supporting device comprises a supporting rod installed in the main shaft arm. The end of the supporting rod extends out of the main shaft arm and then rotates to abut against the limiting groove. The main shaft arm, the supporting rod and the box body form a triangular structure for supporting the box cover to slide. The main shaft arm and the secondary shaft arm which can rotate relatively are installed on the box body of the transformer. The main shaft arm and the supporting rod on the main shaft arm can limit the removal process of the supporting box cover, thereby ensuring that the removal process of the box cover is carried out smoothly and avoiding damage to the components on the box cover.

Description

Technical Field

[0001] The invention relates to the technical field of power grid equipment, and in particular to an oil-immersed transformer which is easy to assemble and disassemble. Background Art

[0002] As an important component in the power transportation process of the power grid, the transformer is deployed at various stations of the power grid. In order to ensure the smooth operation of the power grid, the transformer needs to be inspected and maintained. When the internal parts of the transformer, such as the core and winding, are damaged, the internal parts of the transformer must be replaced. However, due to the large laying area of ​​the power grid and the complex operating environment of the transformer, when the internal parts of the transformer are replaced, the equipment for replacing the transformer cover often cannot be transported to the production site of the transformer, resulting in difficulties in the disassembly and transportation of the transformer cover. Specifically, the cover is not easy to be removed from the chassis after removal. At the same time, when the cover is forcibly moved to the bottom surface, the parts on the cover are easily damaged, that is, the process of removing the cover will affect the inspection and maintenance of the transformer. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the machine cover on the transformer is not easy to be removed and transported, and the parts on the machine cover will be damaged.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an oil-immersed transformer with easy disassembly and assembly, comprising a box device, a sliding rod device installed on the box device and a supporting device arranged on the sliding rod device, the box device comprising a box body and a box cover, a limiting groove is opened on the box body, the sliding rod device comprises a main shaft arm rotatably arranged on the box body and a secondary shaft arm rotatably mounted on the main shaft arm, the end of the main shaft arm corresponding to the secondary shaft arm is a quarter arc structure, and the secondary shaft arm can form a straight plate structure after rotating around the main shaft arm, the supporting device comprises a supporting rod rotatably installed in the main shaft arm, the supporting rod is arranged corresponding to the limiting groove, the end of the supporting rod extends out from the main shaft arm and then rotates to abut against the limiting groove, and the main shaft arm, the supporting rod and the box body constitute a triangular structure that supports the sliding of the box cover.

[0005] Furthermore, a receiving groove is formed on the main shaft arm, and the supporting device includes a supporting shaft installed in the receiving groove, and the supporting rod is rotatably sleeved on the supporting shaft.

[0006] Furthermore, the slide rod device also includes a rotating base installed on the box body, a rotating shaft is fixedly installed on the rotating base, the rotating shaft is arranged toward the limiting groove, and the main shaft arm is rotatably sleeved on the rotating shaft.

[0007] Furthermore, a positioning shaft is inserted into the end of the main shaft arm, and the end of the main shaft arm close to the positioning shaft is in a quarter arc structure, and the secondary shaft arm is rotatably mounted on the positioning shaft.

[0008] Furthermore, a mounting groove is provided on the main shaft arm, the positioning shaft is arranged in the mounting groove, and a tongue plate is provided on the secondary shaft arm. The tongue plate has an arc-shaped structure and can be rotatably accommodated in the mounting groove.

[0009] Furthermore, the slide rod device also includes a mounting seat installed on the side wall of the box body, and a positioning bolt is detachably inserted into the end of the secondary shaft arm, and the positioning bolt passes through the mounting seat.

[0010] Furthermore, a positioning groove is formed on the end of the secondary shaft arm corresponding to the positioning bolt, the positioning groove corresponds to the positioning bolt, and the positioning bolt penetrates the mounting seat and then is inserted into the positioning groove.

[0011] Furthermore, the mounting seat is a right-angle bent plate structure, a side of the mounting seat is mounted on the box body, and the other side of the mounting seat is arranged corresponding to the secondary shaft arm.

[0012] Furthermore, the end of the main shaft arm away from the secondary shaft arm is in a semicircular arc structure, and the semicircular arc surface of the main shaft arm can be supported on the box body.

[0013] The beneficial effect of the present invention is that a rotatable main shaft arm and a secondary shaft arm are installed on the box body, and the main shaft arm and the secondary shaft arm can be stored in the box body when not in use, thereby reducing the space occupied by the transformer; when the main shaft arm and the secondary shaft arm need to be used, the main shaft arm and the secondary shaft arm can be rotated to form a straight plate structure by means of rotation and abutment, and then the main shaft arm is rotated on the box body, and the support rod is abutted against the groove wall of the limiting groove after rotating relative to the main shaft arm, and the support rod, the box body and the main shaft arm form a triangular structure, and after the box cover is removed from the box body, it can be slid out through the triangular structure until the box cover moves to the specified position, and due to the limiting support of the main shaft arm, the box cover can slide slowly along the triangular structure, thereby ensuring the safe removal process of the box cover from the box body, and at the same time, it can also prevent the parts on the box cover from being damaged during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a three-dimensional diagram of the oil-immersed transformer that is easy to assemble and disassemble according to the present invention;

[0016] Figure 2 yes Figure 1 Another stereoscopic view of the oil-immersed transformer that is easy to assemble and disassemble;

[0017] Figure 3 yes Figure 1 and Figure 2 The side view of the oil-immersed transformer which is easy to assemble and disassemble is shown;

[0018] Figure 4 is along Figure 3 Sectional view of AA in the middle;

[0019] In the figure: oil-immersed transformer 100, box device 10, slide rod device 20, support device 30, box 110, box cover 120, heat exchanger exhaust pipe 111, limit groove 112, rotating base 210, main shaft arm 220, secondary shaft arm 230, rotating shaft 211, installation groove 222, positioning shaft 221, tongue plate 231, mounting seat 240, positioning bolt 232, positioning groove 233, support rotating shaft 310, support rod 320, and receiving groove 223. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limitations of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0021] like Figures 1 to 4 As shown, the present invention provides an oil-immersed transformer 100 that is easy to assemble and disassemble, including a box device 10, a slide bar device 20 installed on the box device 10, and a support device 30 arranged on the slide bar device 20.

[0022] like Figure 1 and Figure 2 As shown, the box device 10 includes a box 110 and a box cover 120 installed on the box 110. The box 110 is a box structure with an open top. A plurality of heat exchange exhaust pipes 111 are installed on the box 110. The heat exchange exhaust pipes 111 are arranged in parallel on the side of the box 110, and the heat exchange exhaust pipes 111 are connected to the box 110. The side wall of the box 110 is also provided with a limiting groove 112, which is arranged on the side of the box 110. The box cover 120 is covered on the opening of the box 110, and the area of ​​the box cover 120 is larger than the opening area of ​​the box 110. The box cover 120 can be covered and installed on the box 110 to seal the cavity in the box 110.

[0023] like Figure 2 , Figure 3 and Figure 4As shown, the slide bar device 20 includes a rotating base 210 installed on the box body 110, a main shaft arm 220 hinged on the rotating base 210, and a secondary shaft arm 230 hinged on the main shaft arm 220. The rotating base 210 is fixedly installed on the side of the box body 110, and the rotating base 210 is arranged corresponding to the box cover 120. The rotating base 210 is arranged below the box cover 120. A rotating shaft 211 is fixedly installed on the rotating base 210. The rotating shaft 211 is arranged toward the notch of the limiting groove 112. The rotating base 210 is arranged close to the box cover 120. The main shaft arm 220 is rotatably sleeved on the rotating shaft 211. The end of the main shaft arm 220 corresponding to the rotating shaft 211 is a semi-circular arc structure. The main shaft arm 220 can be supported on the box body 110 through the semi-circular arc surface for rotation. The end of the main shaft arm 220 away from the rotating shaft 211 is provided with a mounting groove 222. The mounting groove 222 is along The main shaft arm 220 is opened in the length direction, and a positioning shaft 221 is inserted into the main shaft arm 220. The positioning shaft 221 is arranged in the mounting groove 222. The end of the main shaft arm 220 corresponding to the positioning shaft 221 is in a quarter arc structure. The secondary shaft arm 230 can be rotatably mounted on the positioning shaft 221. A tongue plate 231 is arranged at the end of the secondary shaft arm 230 corresponding to the positioning shaft 221. The tongue plate 231 is arranged corresponding to the mounting groove 222, that is, the tongue plate 231 is in an arc structure. The tongue plate 231 can be rotatably accommodated in the mounting groove 222. The tongue plate 231 can be rotatably mounted on the positioning shaft 221, and the arc side surface of the tongue plate 231 is pressed against the side wall of the mounting groove 222.

[0024] like Figure 1 As shown, the slide rod device 20 also includes a mounting seat 240 fixedly mounted on the side wall of the box body 110. The secondary shaft arm 230 can be supported against the mounting seat 240 after rotating around the main shaft arm 220. A positioning bolt 232 is detachably inserted into the end of the secondary shaft arm 230. The positioning bolt 232 is detachably inserted into the mounting seat 240. Under the limiting action of the positioning bolt 232, the secondary shaft arm 230 can be prevented from rotating relative to the main shaft arm 220.

[0025] After the positioning bolt 232 is pulled out from the secondary arm 230 and the mounting seat 240, the secondary arm 230 can rotate around the main arm 220. Specifically, the secondary arm 230 rotates along the quarter arc side of the end of the main arm 220. Finally, the secondary arm 230 can be supported against the end of the main arm 220. A straight plate structure is formed between the main arm 220 and the secondary arm 230. The straight plate structure formed by the main arm 220 and the secondary arm 230 can rotate around the rotating shaft 211 until the box cover 120 can slide to the specified position along the main arm 220 and the secondary arm 230.

[0026] Preferably, the mounting seat 240 is a right-angle bent plate structure, the side of the mounting seat 240 is fixedly mounted on the box body 110, the other side of the mounting seat 240 is arranged corresponding to the secondary shaft arm 230, and the positioning bolt 232 passes through the side of the mounting seat 240 corresponding to the secondary shaft arm 230.

[0027] Preferably, a positioning groove 233 is opened on the end of the secondary shaft arm 230 corresponding to the positioning bolt 232, and the positioning groove 233 corresponds to the positioning bolt 232. The positioning bolt 232 can be inserted into the positioning groove 233. Under the cooperation restriction of the positioning bolt 232 and the positioning groove 233, the position between the secondary shaft arm 230 and the mounting seat 240 can be fixed, thereby preventing the secondary shaft arm 230 from rotating relative to the mounting seat 240.

[0028] like Figure 3 and Figure 4 As shown, the support device 30 includes a support shaft 310 fixedly installed in the main shaft arm 220 and a support rod 320 rotatably sleeved on the support shaft 310. The main shaft arm 220 is provided with a receiving groove 223, and the receiving groove 223 is arranged corresponding to the limiting groove 112. The support shaft 310 is fixedly installed in the receiving groove 223, and the support rod 320 is movably received in the receiving groove 223. The support rod 320 is rotatably sleeved on the support shaft 310. The end of the support rod 320 away from the support shaft 310 is in an arc-shaped structure. The end of the support rod 320 in an arc-shaped structure can be rotated to abut against the groove wall of the limiting groove 112. When the main shaft arm 220 rotates around the shaft 211 When the support rod 320 is in the state of being moved, the end of the support rod 320 can be inserted into the limiting groove 112, and the end of the support rod 320 can be clamped on the groove wall of the limiting groove 112 after sliding along the limiting groove 112. When the support rod 320 is supported between the limiting groove 112 and the receiving groove 223, a stable triangular structure is formed between the main shaft arm 220, the support rod 320 and the box body 110. The triangular structure can improve the supporting strength of the box cover 120, thereby ensuring the smooth sliding of the box cover 120 and facilitating the removal and replacement of parts in the box body 110.

[0029] When the oil-immersed transformer 100 is in use, the box body 110 and the components in the box body 110 are installed in the designated positions, and the box cover 120 is placed on the box body 110. When the box body 110 is in use, the secondary shaft arm 230 is rotated around the positioning axis 221 until a right-angle structure is formed between the secondary shaft arm 230 and the main shaft arm 220. The main shaft arm 220 and the secondary shaft arm 230 are rotated around the rotating axis 211 again until the secondary shaft arm 230 is attached to the box body 110, and the positioning groove 233 on the secondary shaft arm 230 corresponds to the mounting seat 240. Then, the positioning bolt 232 passes through the mounting seat 240 and is inserted into the positioning groove 233. Under the action of the positioning bolt 232, the secondary shaft arm 230 can be fixed on the box body 110. When the box cover 120 needs to be removed, the positioning bolt 232 is pulled out from the positioning groove 233. When the positioning bolt 232 is separated from the secondary shaft arm 230 and the mounting seat 240, the secondary shaft arm 230 can rotate relative to the main shaft arm 220, and the secondary shaft arm 230 and the main shaft arm 220 rotate to form a straight plate structure. The secondary shaft arm 230 and the main shaft arm 220 can rotate around the rotating shaft 211. When the main shaft arm 220 rotates, the support rod 320 can rotate around the supporting rotating shaft 310 until the support rod 320 rotates and abuts against the groove wall of the limiting groove 112, forming a triangular structure for the box cover 120 to be slidably transported. After the box cover 120 is removed from the box body 110, it can slide along the main shaft arm 220 and the secondary shaft arm 230 to a specified position.

[0030] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An oil-immersed transformer that is easy to assemble and disassemble, characterized in that: The invention comprises a box device, a slide rod device installed on the box device and a supporting device arranged on the slide rod device, the box device comprises a box body and a box cover, a limiting groove is provided on the box body, the slide rod device comprises a main shaft arm rotatably arranged on the box body, a secondary shaft arm rotatably installed on the main shaft arm, a mounting seat installed on the side wall of the box body and a rotating base installed on the box body, the end of the main shaft arm corresponding to the secondary shaft arm is a quarter arc structure, the secondary shaft arm can form a straight plate structure after rotating around the main shaft arm, and a rotating shaft is fixedly installed on the rotating base, and the rotating shaft faces the limiting groove. A positioning groove is provided, and the main shaft arm can be rotatably mounted on the rotating shaft. A receiving groove is opened on the main shaft arm, and a positioning bolt is detachably inserted on the end of the secondary shaft arm, and the positioning bolt passes through the mounting seat. The supporting device includes a support rod rotatably installed in the main shaft arm and a supporting rotating shaft installed in the receiving groove. The support rod is arranged corresponding to the limiting groove, and the end of the support rod extends from the main shaft arm and is rotated to abut against the limiting groove. The support rod is rotatably mounted on the supporting rotating shaft, and the main shaft arm, the support rod and the box body constitute a triangular structure that supports the sliding of the box cover.

2. The oil-immersed transformer with convenient assembly and disassembly according to claim 1, characterized in that: A positioning shaft is inserted into the end of the main shaft arm, and the end of the main shaft arm close to the positioning shaft is in a quarter arc structure, and the secondary shaft arm is rotatably sleeved on the positioning shaft.

3. The oil-immersed transformer with convenient assembly and disassembly according to claim 2, characterized in that: The main shaft arm is provided with a mounting groove, the positioning shaft is arranged in the mounting groove, the secondary shaft arm is provided with a tongue plate, the tongue plate is in an arc-shaped structure, and the tongue plate can be rotatably accommodated in the mounting groove.

4. The oil-immersed transformer with convenient assembly and disassembly according to claim 1, characterized in that: A positioning groove is formed on the end of the secondary shaft arm corresponding to the positioning bolt, and the positioning groove corresponds to the positioning bolt. The positioning bolt penetrates the mounting seat and then is inserted into the positioning groove.

5. The oil-immersed transformer with convenient assembly and disassembly according to claim 1, characterized in that: The mounting seat is a right-angle bent plate structure, a side edge of the mounting seat is mounted on the box body, and the other side edge of the mounting seat is arranged corresponding to the secondary shaft arm.

6. The oil-immersed transformer with convenient assembly and disassembly according to claim 1, characterized in that: The end of the main shaft arm away from the secondary shaft arm is in a semicircular arc structure, and the semicircular arc surface of the main shaft arm can be supported on the box body.

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