CN216450477U

CN216450477U - Oil-immersed transformer base assembly

Info

Publication number: CN216450477U
Application number: CN202123205908.0U
Authority: CN
Inventors: 明新才
Original assignee: Jiangxi People Power Transmission And Transformation Co ltd
Current assignee: Jiangxi People Power Transmission And Transformation Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-06
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to the technical field of transformers, in particular to an oil-immersed transformer base assembly which comprises two beam frames, a transformer base and a connecting beam, wherein the two beam frames are fixed on two sides of an upright post and arranged in parallel, the transformer base is fixed at the bottom of a transformer, the beam frames are in an Contraband-shaped structure, and a gap is formed between the closed ends of the two beam frames; the transformer base is placed on the beam frame, and the connecting beam is positioned below the beam frame and connected with two ends of the transformer base through connecting bolts; the transformer base is characterized in that a pre-fixing piece is fixed in the middle of the top of the connecting beam, a pre-fixing hole used for the pre-fixing piece to penetrate is formed in the middle of the bottom of the transformer base, and an automatic clamping mechanism automatically clamped with the transformer base is arranged on the pre-fixing piece. The utility model reduces the working difficulty, can improve the installation efficiency and reduces the risk of long-time high-altitude operation.

Description

Oil-immersed transformer base assembly

Technical Field

The utility model relates to the technical field of transformers, in particular to an oil-immersed transformer base assembly.

Background

The oil-immersed transformer is a novel high-performance transformer with more reasonable structure and better performance, and the three-dimensional roll iron core has no air gap in a magnetic circuit because three core columns are arranged in a three-dimensional manner in an equilateral triangle, so that the winding is tighter, the three magnetic circuits are consistent in length and shortest, and the cross sectional area of the core columns of the iron core is closer to a circle, so that the performance is further improved, the loss is reduced, the noise is reduced, the three-phase balance is realized, the third harmonic component is reduced, and the product is more suitable for urban and rural power, the transformation of power grids of industrial and mining enterprises, and is more suitable for combined transformers and transformers for pre-installed substations.

When the transformer is installed, the transformer base is required to be installed on a beam frame at a high position frequently, and due to the fact that the transformer base is located at the high position, when workers work, the operation is not convenient, the working difficulty is increased, and meanwhile unnecessary risks can be increased due to long work at the high position.

Based on the reasons, the utility model provides an oil-immersed transformer base assembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an oil-immersed transformer base assembly, which reduces the working difficulty, can improve the installation efficiency and reduces the risk of long-time high-altitude operation.

In order to realize the purpose of the utility model, the utility model adopts the technical scheme that:

the utility model discloses an oil-immersed transformer base assembly which comprises two beam frames, a transformer base and a connecting beam, wherein the two beam frames are fixed on two sides of an upright column and are arranged in parallel, the transformer base is fixed at the bottom of a transformer, the beam frames are in an Contraband-shaped structure, and a gap is formed between the closed ends of the two beam frames; the transformer base is placed on the beam frame, and the connecting beam is positioned below the beam frame and connected with two ends of the transformer base through connecting bolts; the transformer base is characterized in that a pre-fixing piece is fixed in the middle of the top of the connecting beam, a pre-fixing hole used for the pre-fixing piece to penetrate is formed in the middle of the bottom of the transformer base, and an automatic clamping mechanism automatically clamped with the transformer base is arranged on the pre-fixing piece.

The transformer base is the structure of "Contraband" shape of constituteing by last diaphragm, riser and diaphragm down, the tie-beam is the structure of "L" shape of compriseing vertical board and transverse plate, "the connecting bolt top is equipped with the toper locating part that the external diameter reduces gradually to the bottom by the top, is equipped with the external screw thread that links to each other with coupling nut on its bottom outer wall, go up be equipped with on the diaphragm the internal diameter with the through-hole that the biggest external diameter of toper locating part equals, be equipped with down on diaphragm and the transverse plate and be used for the bolt hole that connecting bolt passed.

Square notches are arranged on two sides of the conical limiting part.

The pre-fixing piece is of a square structure, and the top of the pre-fixing piece is provided with a quadrangular frustum pyramid-shaped guide part of which the width is gradually increased from the top to the bottom.

The automatic clamping mechanism comprises a limiting part, limiting grooves which are matched with the cross section shapes of the limiting part and are arranged above two side walls of the pre-fixing part, and a plurality of compression springs arranged in the limiting grooves, wherein one end of each compression spring is fixed at the bottom of the inner wall of each limiting groove, the other end of each compression spring is connected with the inner end of the limiting part, and the depth of each limiting groove is greater than the maximum width of the limiting part; the initial state length of the compression spring is smaller than the depth of the limiting groove; the outer end of the limiting part is of a right-angle trapezoidal structure, and the upper surface of the limiting part is an inclined surface which is obliquely and downwards arranged.

The lower extreme of pre-fixing piece is the screw rod, the horizontal board middle part of tie-beam is equipped with the spacing hole that is used for the screw rod to pass, the both sides of horizontal board are equipped with the spiro union in spacing nut on the screw rod.

The utility model has the beneficial effects that:

(1) according to the transformer base, the pre-fixing piece on the connecting beam penetrates through the pre-fixing hole on the transformer base and is automatically clamped through the automatic clamping mechanism to complete pre-fixing, and at the moment, a worker only needs to lock and connect the transformer base and the connecting beam through the connecting bolt and the connecting nut without holding the connecting beam, so that the working difficulty is reduced, the mounting efficiency can be improved, and the risk of long-time high-altitude operation is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic partial structural view according to the first embodiment;

FIG. 3 is a cross-sectional view of the automatic clamping mechanism of the present invention;

fig. 4 is a partial structural schematic diagram of the second embodiment.

In the figure: the transformer comprises a stand column 1, a beam frame 2, a transformer base 3, a connecting beam 4, a connecting bolt 5, a pre-fixing piece 6, a pre-fixing hole 7, an automatic clamping mechanism 8, a connecting nut 9, a transformer 10, a guide part 11, a screw rod 12, a limiting nut 13, an upper transverse plate 31, a vertical plate 32, a lower transverse plate 33, a through hole 34, a longitudinal plate 41, a transverse plate 42, a conical limiting part 51, a square notch 52, a limiting part 61, a limiting groove 62 and a compression spring 63.

Detailed Description

The utility model is further illustrated below:

referring to figures 1-4 of the drawings,

the first embodiment is as follows: the embodiment discloses an oil-immersed transformer base assembly, which comprises two beam frames 2, a transformer base 3 and a connecting beam 4, wherein the beam frames 2 are fixed on two sides of an upright post 1 and are arranged in parallel, the transformer base 3 is fixed at the bottom of a transformer 10, the beam frames 2 are in an Contraband-shaped structure, and a gap is formed between the closed ends of the two beam frames 2; the transformer base 3 is placed on the beam frame 2, and the connecting beam 4 is positioned below the beam frame 2 and connected with two ends of the transformer base 3 through connecting bolts 5; be fixed with mounting 6 in the middle of the top of tie-beam 4 in advance, be equipped with in the middle of the 3 bottoms of transformer base and be used for the pre-fixing hole 7 that mounting 6 passed in advance, be equipped with on mounting 6 in advance with the automatic latch mechanism 8 of the automatic joint of transformer base 3, when transformer base 3 placed on roof beam structure 2, the present case passes pre-fixing hole 7 on transformer base 3 through mounting 6 in advance on the tie-beam 4 to carry out automatic joint through automatic latch mechanism 8, accomplish pre-fixing, the staff only need with transformer base 3 and tie-beam 4 through connecting bolt 5 and coupling nut 9 locking connection this moment can, need not hold up tie-beam 4, thereby reduced the work degree of difficulty, and can improve the efficiency of installation, reduced the risk of long-time eminence operation.

The transformer base 3 is in an Contraband-shaped structure consisting of an upper transverse plate 31, a vertical plate 32 and a lower transverse plate 33, the connecting beam 4 is an L-shaped structure consisting of a longitudinal plate 41 and a transverse plate 42, the top of the connecting bolt 5 is provided with a conical limiting piece 51 with the outer diameter gradually reduced from the top to the bottom, the outer wall of the bottom of the upper transverse plate 31 is provided with an external thread connected with the connecting nut 9, the upper transverse plate 31 is provided with a through hole 34 with the inner diameter equal to the maximum outer diameter of the conical limiting piece 51, bolt holes for the connecting bolts 5 to pass through are arranged on the lower transverse plate 33 and the transverse plate 42, after the bottom end of the connecting bolt 5 sequentially passes through the through hole 34, the lower transverse plate 33 and the bolt holes on the transverse plate 42, the upper end of the connecting bolt 5 is limited through the conical limiting part 51, the lower end of the connecting bolt is connected in a locking mode through the connecting nut 9, the installation is quicker, and both ends of the connecting bolt do not need to be connected in a locking mode through nuts.

The both sides of toper locating part 51 are equipped with square notch 52, and the staff of being convenient for uses behind the instrument centre gripping square notch 52, and the bottom is connected locking tie-beam 4 and transformer base 3 through coupling nut 9 and connecting bolt 5 cooperation.

The pre-fixing piece 6 is of a square structure, the top of the pre-fixing piece is provided with a quadrangular frustum pyramid-shaped guide part 11 with the width gradually increasing from the top to the bottom, and the guide part 11 is arranged to enable a worker to quickly enable the outer end of the pre-fixing piece 6 to penetrate through the pre-fixing hole 7; and pre-fixing piece 6 is square structure, and when pre-fixing piece 6 passed through pre-fixing hole 7, the relative position of tie-beam 4 and transformer base 3 on the horizontal direction was fixed to make the bolt hole between the two can be coaxial, be convenient for connecting bolt 5 and coupling nut 9's being connected, further accelerated the installation rate.

The automatic clamping mechanism 8 comprises a limiting piece 61, a limiting groove 62 which is matched with the cross section of the limiting piece 61 and is arranged above two side walls of the pre-fixing piece 6, and a plurality of compression springs 63 arranged in the limiting groove 62, wherein one end of each compression spring 63 is fixed at the bottom of the inner wall of the limiting groove 62, the other end of each compression spring is connected with the inner end of the limiting piece 61, and the depth of the limiting groove 62 is greater than the maximum width of the limiting piece 61; the initial state length of the compression spring 63 is smaller than the depth of the limit groove 62; the outer end of the limiting part 61 is in a right trapezoid structure, and the upper surface of the limiting part is an inclined surface which is arranged obliquely downwards.

Example two: the lower extreme of pre-fixing piece 6 is screw rod 12, the horizontal plate 42 middle part of tie-beam 4 is equipped with the spacing hole that is used for screw rod 12 to pass, the both sides of horizontal plate 42 be equipped with the spiro union in spacing nut 13 on the screw rod 12, the length that pre-fixing piece 6 can be adjusted through two spacing nut 13 of screw rod 12 cooperation to this embodiment to adapt to different needs.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the drawings or directly or indirectly applied to the related technical fields are included in the scope of the present invention.

Claims

1. The utility model provides an oil-immersed transformer base subassembly which characterized in that: the transformer comprises two beam frames (2) which are fixed on two sides of a vertical column (1) and arranged in parallel, a transformer base (3) which is fixed at the bottom of a transformer (10) and a connecting beam (4), wherein the beam frames (2) are in an Contraband-shaped structure, and a gap is formed between the closed ends of the two beam frames (2); the transformer base (3) is placed on the beam frame (2), and the connecting beam (4) is positioned below the beam frame (2) and connected with two ends of the transformer base (3) through connecting bolts (5); be fixed with in the middle of the top of tie-beam (4) and fix piece (6) in advance, be equipped with in the middle of transformer base (3) bottom and be used for in advance fixed orifices (7) in advance that fixing piece (6) passed, be equipped with on fixing piece (6) in advance with automatic latch mechanism (8) of transformer base (3) automatic joint.

2. The oil-filled transformer base assembly of claim 1, wherein: the transformer base (3) is of an Contraband-shaped structure consisting of an upper transverse plate (31), a vertical plate (32) and a lower transverse plate (33), the connecting beam (4) is of an L-shaped structure consisting of a longitudinal plate (41) and a transverse plate (42), a conical limiting part (51) with the outer diameter gradually reduced from the top to the bottom is arranged at the top of the connecting bolt (5), an external thread connected with a connecting nut (9) is arranged on the outer wall of the bottom of the connecting bolt, a through hole (34) with the inner diameter equal to the maximum outer diameter of the conical limiting part (51) is arranged on the upper transverse plate (31), and bolt holes for the connecting bolt (5) to pass through are formed in the lower transverse plate (33) and the transverse plate (42).

3. The oil-filled transformer base assembly of claim 2, wherein: square notches (52) are arranged on two sides of the conical limiting piece (51).

4. The oil-filled transformer base assembly of claim 3, wherein: the pre-fixing piece (6) is of a square structure, and the top of the pre-fixing piece is provided with a quadrangular frustum pyramid-shaped guide part (11) with the width gradually increasing from the top to the bottom.

5. The oil-filled transformer base assembly of claim 4, wherein: the automatic clamping mechanism (8) comprises a limiting piece (61), a limiting groove (62) which is matched with the cross section of the limiting piece (61) and arranged above two side walls of the pre-fixing piece (6) and a plurality of compression springs (63) arranged in the limiting groove (62), one end of each compression spring (63) is fixed at the bottom of the inner wall of the limiting groove (62), the other end of each compression spring is connected with the inner end of the limiting piece (61), and the depth of each limiting groove (62) is larger than the maximum width of the limiting piece (61); the initial state length of the compression spring (63) is smaller than the depth of the limit groove (62); the outer end of the limiting piece (61) is of a right-angle trapezoidal structure, and the upper surface of the limiting piece is an inclined surface which is arranged obliquely downwards.

6. The oil-filled transformer base assembly of claim 5, wherein: the lower extreme of prefastening piece (6) is screw rod (12), horizontal board (42) middle part of tie-beam (4) is equipped with the spacing hole that is used for screw rod (12) to pass, the both sides of horizontal board (42) are equipped with spiro union in spacing nut (13) on screw rod (12).