CN215644003U - Oil tank cover connecting structure of oil-immersed transformer - Google Patents
Oil tank cover connecting structure of oil-immersed transformer Download PDFInfo
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- CN215644003U CN215644003U CN202120576972.0U CN202120576972U CN215644003U CN 215644003 U CN215644003 U CN 215644003U CN 202120576972 U CN202120576972 U CN 202120576972U CN 215644003 U CN215644003 U CN 215644003U
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Abstract
The utility model relates to an oil tank cover connecting structure of an oil-immersed transformer, which comprises the oil-immersed transformer, wherein the oil-immersed transformer comprises a transformer and an oil tank, and is characterized in that: the transformer body of the transformer is provided with two clamping pieces, the outer sides of the clamping pieces are connected with connecting pieces, the connecting pieces are provided with four holes, and two middle long waist holes are used as body connecting holes and are connected with body screws; two round holes at two ends are connecting holes of the oil tank cover plate and are used for being connected with an oil tank screw; the connecting piece extends outwards from the edge of the transformer body so that the maximum projection size of the connecting piece is larger than that of the transformer body, and therefore the connecting piece is prevented from colliding with the transformer body during installation. The device has the substantial characteristics of large operation surface, convenience in installation, high installation efficiency, long service life and the like, and has remarkable technical progress.
Description
Technical Field
The utility model relates to an oil tank cover connecting structure of an oil-immersed transformer. Belongs to the technical field of power transmission and distribution equipment of a power system.
Background
Transformers are an indispensable part of the power system; the types of the oil-immersed transformers are various, and the oil-immersed transformers are more in daily application. The oil immersed transformer mainly comprises an oil tank, transformer oil and a transformer body (the transformer body comprises an iron core, a coil, an insulating part and a clamping part); in the prior art, a transformer body is arranged in an inner cavity of an oil tank, an oil tank cover is connected with a transformer body clamping piece (see fig. 3 and 4) through a screw rod, and is connected and fixed with a limiting nail hung in the oil tank to fix the oil tank cover; this assembly is relatively simple, but also has the following problems:
(1) the oil tank cover is connected with the clamping piece of the transformer body through the screw rod, and the position and the size of the mounting hole of the connecting screw rod are limited due to the fact that the mounting surface of the clamping piece is small, so that tools are inconvenient to put into the oil tank cover for operation, the oil tank cover is difficult to mount and the mounting efficiency is low;
(2) after the tank cover is fixedly connected with the transformer body, when the tank cover is hoisted into the oil tank, the body can swing and rock, the coil is easy to rub or collide with the oil tank, so that the coil is easy to damage, and the service life is influenced;
(3) because the oil tank is made of metal materials, the condition of the transformer body in the oil tank cannot be directly observed, the gap between the transformer body and the oil tank is large, the swing range is large, the transformer body is difficult to fall into the positioning nail, the transformer body needs to be adjusted and installed up and down for many times, and the installation efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that in the assembly of an oil-immersed transformer in the prior art, the connecting operation surface of a box cover and a transformer body is small, tools are inconvenient to put in and operate, the installation is difficult, the installation efficiency is low, coils are easy to damage, the service life of the transformer is influenced, and the cost is high.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides an oil tank cap connection structure of oil-immersed transformer, includes oil-immersed transformer, and oil-immersed transformer includes transformer ware body and oil tank, and its structural feature lies in: the transformer body of the transformer is provided with two clamping pieces, the outer sides of the clamping pieces are connected with connecting pieces, the connecting pieces are provided with four holes, and two middle long waist holes are used as body connecting holes and are connected with body screws; two round holes at two ends are connecting holes of the oil tank cover plate and are used for being connected with an oil tank screw; the connecting piece extends outwards from the edge of the transformer body so that the maximum projection size of the connecting piece is larger than that of the transformer body, and therefore the connecting piece is prevented from colliding with the transformer body during installation.
In practical application, the oil tank can be designed to be in the minimum size, and the cost of the oil tank and the cost of transformer oil are reduced.
The purpose of the utility model can be achieved by adopting the following technical scheme:
furthermore, the connecting piece is an L-shaped connecting plate or a connecting pipe, the long side of the connecting piece is fixed with the device body through a screw of the device body in a threaded manner, and the short side of the connecting piece is a free end to form a side mounting structure.
Further, the length of the connecting piece and the clamping piece is larger than the maximum size of the coil of the transformer body, so that the coil is prevented from being damaged in the assembling process; the length of the connecting piece is smaller than the inner diameter of the oil tank so as to avoid contacting with the inner wall of the oil tank.
Furthermore, a gap is formed between the connecting piece and the inner cavity wall of the oil tank, and the gap is 5-50 mm so as to control the swing range of the transformer body, so that the transformer body can be conveniently and quickly positioned in the positioning nail, and the mounting efficiency is improved.
Furthermore, the connecting piece is a square connecting plate, the middle part of the connecting piece is fixed with the transformer body through a screw of the transformer body in a threaded manner, and the two end parts of the connecting piece are connected and installed with a screw of the oil tank.
Further, the length of the square connecting plate and the clamping piece is larger than the maximum size of the coil of the transformer body, so that the coil is prevented from being damaged in the assembling process; the length of the connecting plate is smaller than the inner diameter of the oil tank so as to avoid contact with the inner wall of the oil tank.
Furthermore, a gap is formed between the square connecting plate and the inner cavity wall of the oil tank, so that the swing range is limited, the device body can be rapidly located in the positioning nail, and the installation efficiency is improved.
The utility model has the following prominent substantive characteristics and remarkable technical progress:
1. the utility model relates to a fuel tank cover connecting structure.A transformer body is provided with two clamping pieces, the outer sides of the clamping pieces are connected with a connecting piece, the connecting piece is provided with four holes, and two middle long waist holes are used as connecting holes of the transformer body and are used for being connected with screws of the transformer body; two round holes at two ends are connecting holes of the oil tank cover plate and are used for being connected with an oil tank screw; the connecting piece extends outwards from the edge of the transformer body so that the maximum projection size of the connecting piece is larger than that of the transformer body, and therefore the connecting piece is prevented from colliding with the transformer body during installation. Therefore, the problems that in the assembly of the oil-immersed transformer in the prior art, the connection operation surface of the box cover and the transformer body is small, tools are not convenient to put in for operation, the installation is difficult, the installation efficiency is low, coils are easy to damage, the service life of the transformer is influenced, and the cost is high are solved, and the oil-immersed transformer has the prominent substantive characteristics and the obvious technical progress that the operation surface is large, the installation is convenient, the installation efficiency is high, the service life is long, and the like.
2. The oil tank screw rod is not directly arranged on the clamping piece but directly arranged on the connecting plate, and the connecting piece is positioned on the outer side of the device body, so that the oil tank screw rod has the advantages of large operating surface, easiness in putting and installing tools, improvement of installation efficiency and the like.
Drawings
FIG. 1 is a front view of the structure of embodiment 1 of the present invention.
Fig. 2 is a top view of the structure of embodiment 1 of the present invention.
Fig. 3 is a front view of a prior art mounting structure.
Fig. 4 is a top view of a prior art mounting structure.
Detailed Description
Specific example 1:
referring to fig. 1 and 2, the oil tank cap connection structure of an oil-immersed transformer according to this embodiment includes an oil-immersed transformer, where the oil-immersed transformer includes a transformer body and an oil tank, two clamping pieces 4 are disposed on the transformer body 1 of the transformer, a connection piece 3 is connected to an outer side of the clamping pieces 4, the connection piece 3 is provided with four holes, and two middle long waist holes are body connection holes 3-2 for connecting with a body screw 6; two round holes at two ends are fuel tank cover plate connecting holes 3-1 for connecting with a fuel tank screw 5; the connecting member 3 extends outward from the edge of the body 1 such that the maximum projected dimension thereof is larger than the maximum projected dimension of the body 1, to avoid collision with the body 1 during installation.
In this embodiment:
the connecting piece 3 is an L-shaped connecting plate or a connecting pipe, the long side of the connecting piece is fixed with the device body through a device body screw 6 in a threaded manner, and the short side of the connecting piece is a free end to form a side mounting structure.
The length of the connecting piece 3 and the clamping piece 4 is larger than the maximum size of the coil of the transformer body 1, so that the coil is prevented from being damaged in the assembling process; the length of the connecting piece 3 is smaller than the inner diameter of the oil tank so as to avoid contact with the inner wall of the oil tank.
A gap is formed between the connecting piece 3 and the inner cavity wall of the oil tank, and the gap is 5-50 mm so as to control the swing range of the transformer body 1, so that the transformer body 1 can be conveniently and quickly positioned in the positioning nail, and the mounting efficiency is improved.
The connecting piece 3 is a square connecting plate, the middle part of the connecting piece is fixed with the transformer body through a transformer body screw 6 in a threaded manner, and the two end parts of the connecting piece are connected with an oil tank screw 5.
Further, the length of the square connecting plate and the clamping piece 4 is larger than the maximum size of the coil of the transformer body, so that the coil is prevented from being damaged in the assembling process; the length of the connecting plate is smaller than the inner diameter of the oil tank so as to avoid contact with the inner wall of the oil tank.
Furthermore, the space formed between the square connecting plate and the inner cavity wall of the oil tank limits the swing range, so that the transformer body 1 can be quickly positioned in the positioning nail, and the installation efficiency is improved.
The assembly method of the oil-immersed transformer related to the embodiment is characterized by comprising the following steps:
1) arranging an oil-immersed transformer and connecting accessories, wherein the oil-immersed transformer comprises a transformer and an oil tank, two clamping pieces 4 are arranged on a transformer body 1 of the transformer, a connecting plate 3 is connected to the outer side of each clamping piece 4, four round holes are formed in the connecting plate 3, and the two round holes in the middle are connecting holes 3-2 of the transformer body and are used for being connected with the transformer body 1 through a screw 6 of the transformer body; two round holes at two ends are oil tank cover plate connecting holes 3-1 for connecting with an oil tank cover plate 2 through an oil tank screw 5; the length of the connecting plate 3 and the clamping piece 4 is larger than the maximum size of the coil, so that the coil is prevented from being damaged in the assembling process; the length of the connecting plate 3 is smaller than the inner diameter of the oil tank so as to avoid contacting with the inner wall of the oil tank;
2) the upper end of an oil tank screw rod 5 is fixed with an oil tank cover plate 2 in a threaded manner, the lower end is a free end and is used for connecting a plate 3, a clamping piece 4 is connected to a device body 1, and the connecting plate 3 is connected to the device body 1 through the clamping piece 4;
3) assembling the oil-immersed transformer, placing the transformer body 1 in an inner cavity of an oil tank, lifting the oil tank cover plate 2 to enable the oil tank screw rod 5 to penetrate through an oil tank cover plate connecting hole 3-1, then fixing the oil tank screw rod 5 and the connecting plate 3 in a threaded connection mode through a nut, and completing the assembly of the oil tank cover plate 2 on the transformer body 1 to complete the assembly of the oil-immersed transformer.
Further, in the step 3), the oil-immersed transformer is assembled, the oil tank screw 5 is firstly placed into the tank cover plate connecting hole 3-1 of the connecting plate 3, the front, rear, left and right dimensions and positions are adjusted according to the size of the oil tank, and then nuts on the oil tank screw 5, which are positioned on the upper side and the lower side of the connecting plate 3, are tightened, so that the oil tank cover plate 2 is completely fixed on the transformer body 1.
Further, the step 1) of setting the oil-immersed transformer and the connecting fittings further comprises sleeving a coil on the iron core to form the transformer body 1.
Further, the gap formed between the connecting plate 3 and the inner cavity wall of the oil tank is small, the swing range is small, and the device body 1 can be conveniently and quickly located in the positioning nail.
The installation process of this embodiment is further described below:
the connecting plate 3 is L-shaped, the long side 3-1 is installed with a bolt of a clamp of the body, and the short side is installed on the side of a reinforcing side; the lengths of the connecting plate and the clamping piece are larger than the maximum size of the coil, so that the coil is prevented from being damaged in the assembling process; the length of the connecting plate is less than the inner diameter of the oil tank, and the connecting plate does not interfere with the inner wall of the oil tank; the gap between the connecting plate and the box wall is smaller, the swing range is small, the device body can be conveniently and quickly positioned in the positioning nail,
the coil is sleeved on the iron core, the clamping piece is installed, connecting plates are installed at the positions of the two sides of the clamping piece, the screw rod of the transformer body is tightened, the connecting plates are fixed on the transformer body, and a connecting hole of the transformer body is a circular hole and has a certain adjustable range;
installing an oil tank screw rod 5 on an oil tank cover plate 2, installing a fixing nut, hoisting the oil tank cover plate 2 to a vessel body 1, placing the oil tank screw rod 5 into an oil tank cover plate connecting hole 3-1 of a connecting plate 3, adjusting various positions and sizes according to the size of an oil tank, and tightening an upper nut and a lower nut of the oil tank screw rod 5 to completely fix the oil tank cover plate 2 on the vessel body 1; the oil tank screw rod 5 is not directly installed on the clamping piece 4, but is directly installed on the connecting plate 3, and the connecting plate is located on the outer side of the transformer body 1, so that the oil tank screw rod has the advantages of being large in operation area, easy to place tools in and install, capable of improving installation efficiency and the like.
After the connecting plate is connected with the oil tank screw 5, the lower part of the connecting plate 3 is vacant, so that the height can be adjusted up and down without any interference; the outermost size of the coil is smaller than the length sizes of the clamping piece 4 and the connecting plate 3, so that the coil cannot be contacted and collided with the wall of the tank in any direction when the tank body 1 is placed in the tank body, the coil is protected, and the installation quality of the tank body is ensured; the size of a gap between the connecting plate 3 and the box wall is small, the swing range is small, the connecting plate can quickly fall into a positioning nail of the box body, the accuracy is improved, and the mounting efficiency is improved; the oil tank can be designed to be the minimum size, so that the cost of the oil tank and the transformer is reduced; therefore, the utility model not only can solve the problem of difficult installation, improve the installation efficiency, reduce the manufacturing cost of the transformer, but also can ensure the quality of the installation of the transformer coil.
Claims (7)
1. The utility model provides an oil tank cap connection structure of oil-immersed transformer, includes oil-immersed transformer, and oil-immersed transformer includes transformer and oil tank, its characterized in that: the transformer body (1) of the transformer is provided with two clamping pieces (4), the outer sides of the clamping pieces (4) are connected with connecting pieces (3), the connecting pieces (3) are provided with four holes, and two middle long waist holes are connecting holes (3-2) of the transformer body and are used for being connected with screw rods (6) of the transformer body; two round holes at two ends are fuel tank cover plate connecting holes (3-1) for connecting with a fuel tank screw (5); the connecting piece (3) extends outwards from the edge of the transformer body (1) so that the maximum projection size of the connecting piece is larger than that of the transformer body (1) to avoid collision with the transformer body (1) during installation.
2. The oil tank cap connection structure of an oil-filled transformer according to claim 1, wherein: the connecting piece (3) is an L-shaped connecting plate or a connecting pipe, the long side of the connecting piece is fixed with the transformer body in a threaded manner through a transformer body screw rod (6), and the short side of the connecting piece is a free end to form a side mounting structure.
3. The oil tank cap connection structure of an oil-filled transformer according to claim 1, wherein: the length of the connecting piece (3) and the clamping piece (4) is larger than the maximum size of the coil of the transformer body (1) so as to avoid the coil from being damaged in the assembling process; the length of the connecting piece (3) is smaller than the inner diameter of the oil tank so as to avoid contacting with the inner wall of the oil tank.
4. The oil tank cap connection structure of an oil-filled transformer according to claim 1, wherein: a gap is formed between the connecting piece (3) and the inner cavity wall of the oil tank, and the gap is 5-50 mm so as to control the swing range of the transformer body (1), so that the transformer body (1) can be rapidly positioned in the positioning nail, and the mounting efficiency is improved.
5. The oil tank cap connection structure of an oil-filled transformer according to claim 1, wherein: the connecting piece (3) is a square connecting plate, the middle part of the connecting piece is fixed with the transformer body in a threaded manner through a transformer body screw rod (6), and the two end parts of the connecting piece are connected and installed with an oil tank screw rod (5).
6. The oil tank cap connection structure of an oil-filled transformer according to claim 5, wherein: the length of the square connecting plate and the clamping piece (4) is larger than the maximum size of the coil of the transformer body, so that the coil is prevented from being damaged in the assembling process; the length of the connecting plate is smaller than the inner diameter of the oil tank so as to avoid contact with the inner wall of the oil tank.
7. The oil tank cap connection structure of an oil-filled transformer according to claim 5, wherein: the space formed between the square connecting plate and the inner cavity wall of the oil tank limits the swing range, so that the transformer body (1) can be quickly positioned in the positioning nail, and the installation efficiency is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120576972.0U CN215644003U (en) | 2021-03-22 | 2021-03-22 | Oil tank cover connecting structure of oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120576972.0U CN215644003U (en) | 2021-03-22 | 2021-03-22 | Oil tank cover connecting structure of oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644003U true CN215644003U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120576972.0U Active CN215644003U (en) | 2021-03-22 | 2021-03-22 | Oil tank cover connecting structure of oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215644003U (en) |
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2021
- 2021-03-22 CN CN202120576972.0U patent/CN215644003U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Area A1, factory building, Taiji industrial town, Yinzhan management area, Longtang Town, Qingcheng District, Qingyuan City, Guangdong Province, 511500 Patentee after: Guangdong Baichang Energy Technology Co.,Ltd. Address before: 511540 area A1 of Taiji industrial city factory building, Yinzhan management area, Longtang Town, Qingcheng District, Qingyuan City, Guangdong Province Patentee before: GUANGDONG BAICHANG ELECTRIC POWER EQUIPMENT CO.,LTD. |
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| CP03 | Change of name, title or address |