CN116092786A - A 10kV oil-immersed low-voltage axial double-split rectifier transformer - Google Patents

Abstract

The present invention relates to the technical field of auxiliary devices of electric power facilities, in particular to a 10kV oil-immersed low-voltage axial double-split rectifier transformer, which has a simple structure, and the tank cover is easy to disassemble and assemble, which is more convenient; it includes an oil tank and a tank cover; it also includes: Lifting ring, a number of bolts are fixed on the lifting ring, and the bolts pass through the fuel tank and the tank cover, and also include a lifting mechanism for driving the lifting ring to move; it also includes a parallelogram linkage mechanism for driving the tank cover to move ; It also includes a connection mechanism that drives the lifting mechanism and the parallelogram linkage mechanism to act successively.

Description

A 10kV oil-immersed low-voltage axial double-split rectifier transformer

technical field

The invention relates to the technical field of auxiliary devices of electric facilities, in particular to a 10kV oil-immersed low-voltage axial double-split rectifier transformer.

Background technique

Oil-immersed low-voltage axial double-split rectifier transformer is a new type of high-performance transformer with more reasonable structure and better performance. It uses oil as the main insulation method of the transformer and relies on oil as the cooling medium, such as oil-immersed self-cooling, oil-immersed Air cooling, oil immersion water cooling and forced oil circulation, etc. The main components of the transformer are iron core, winding, oil tank, oil pillow, breather, pressure relief valve, radiator, insulating bushing, tap changer, gas relay, thermometer, oil purifier, oil level gauge, etc.

In the prior art, the oil-immersed low-voltage axial double-split rectifier transformer uses dozens of bolts and nuts to fix the box cover to keep its sealing performance good. This method has the problem that the box cover is not easy to disassemble. There is room for improvement.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a 10kV oil-immersed low-voltage axial double-split rectifier transformer, which has a simple structure, and the box cover is easy to disassemble and assemble, which is more convenient.

A 10kV oil-immersed low-voltage axial double-split rectifier transformer of the present invention includes an oil tank and a tank cover; it also includes:

Lifting ring, a plurality of bolts are fixed on the lifting ring, and a plurality of bolts pass through the fuel tank and the tank cover, and also includes a lifting mechanism for driving the lifting ring to move;

It also includes a parallelogram linkage mechanism for driving the box cover to move;

It also includes a connection mechanism that drives the lifting mechanism and the parallelogram linkage mechanism to act successively.

Further, the lifting mechanism includes a fixed plate fixed on the fuel tank, and the fixed plate is provided with a through hole 1 and a through hole 2, the through hole 1 is vertical, and the through hole 2 includes a vertical section and an arc-shaped section;

One end of the lifting ring is connected with a Z-shaped connecting rod, and the connecting rod is fixed with a moving shaft 1 and a moving shaft 2, the moving shaft 1 passes through the through hole 1, and the moving shaft 2 passes through the through hole 2;

The elevating mechanism also includes a supporting shaft that is rotatably installed on the fixed plate, and a rotating arm is fixed on the supporting shaft, and a long hole is provided on the rotating arm, and the second moving shaft passes through the long hole.

Further, the parallelogram linkage mechanism includes a platform fixed on the fuel tank, and four brackets are fixed on the platform, two of which are rotatably mounted with shaft 1, and rotatably mounted with shaft 2, shaft 1 on the other two brackets. Swing arm 1 is fixed on both sides of the rotating shaft 2, and swing arm 2 is installed on both sides of the rotating shaft 2;

The other end of the swing arm one is rotatably connected with the case cover, and the other end of the swing arm two is rotatably connected with the case cover.

Further, the connection mechanism includes a main shaft rotatably installed on the oil tank, gear one is fixed on the main shaft, rack one and rack two are respectively meshed on both sides of gear one, slider one is fixed on rack one, and gear one is fixed on the rack one. The slider 2 is fixed on the bar 2, and the fuel tank is fixed with a rail that slides and cooperates with the slider 1 and the slider 2;

A special-shaped rod is fixed on the support shaft, and an L-shaped hole 1 is set on the special-shaped rod. The L-shaped hole 1 includes part 1 and part 2, and the drive shaft 1 passing through the L-shaped hole 1 is fixed on the rack 1;

An extension rod is fixed on the rotating shaft one, a drive shaft two is fixed at the other end of the extension rod, a power plate is fixed on the rack two, and an L-shaped hole two is offered on the power plate, and the drive shaft two passes through the L-shaped hole two.

Further, the connection mechanism also includes a gear 2 fixed on the main shaft, an oil cylinder fixed on the fuel tank, and a rack 3 meshing with the gear 2 is fixed at the output end of the oil cylinder.

Further, a bearing 1 is fixed on the moving shaft 1, and the inner wall of the through hole 1 of the bearing 1 is in contact with, and a bearing 2 is fixed on the moving shaft 2, and the bearing 2 is in contact with the inner wall of the through hole 2 .

Further, a bearing 3 is fixed on the moving shaft 2, and the bearing 3 is in contact with the inner wall of the elongated hole.

Further, the drive shaft 1 is fixed with a bearing 4, and the bearing 4 is in contact with the inner wall of the L-shaped hole 1, and the drive shaft 2 is fixed with a bearing 5, and the bearing 5 is in contact with the inner wall of the L-shaped hole 2.

Compared with the prior art, the beneficial effect of the present invention is: through this device, multiple bolts can be controlled simultaneously to lift and then turn over, without the need for the operator to pass through the fuel tank and the tank cover one by one, reducing the workload of the operator, and at the same time It can also control the opening and closing of the box cover, which is more convenient for maintenance.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a top perspective view of the right front side of Fig. 1;

Fig. 3 is a three-dimensional exploded view of the left front side of Fig. 1;

Marks in the attached drawings: 1. Fuel tank; 2. Tank cover; 3. Lifting ring; 4. Bolt; 5. Fixed plate; 6. Through hole one; 7. Through hole two; 8. Connecting rod; 9. Moving shaft one ;10, moving shaft two; 11, supporting shaft; 12, rotating arm; 13, bracket; 14, rotating shaft one; 15, rotating shaft two; 16, swinging arm one; 17, swinging arm two; 18, main shaft; 19, gear 1; 20. Rack 1; 21. Rack 2; 22. Shaped rod; 23. Part 1; 24. Part 2; 25. Extension rod; 26. Drive shaft 2; 27. Power plate; 28. Gear 2; 29, oil cylinder; 30, rack three; 31, bearing one; 32, drive shaft one.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in Figures 1 to 3, a 10kV oil-immersed low-voltage axial double-split rectifier transformer of the present invention includes an oil tank 1 and a tank cover 2; it also includes:

Lifting ring 3, a plurality of bolts 4 are fixed on the lifting ring 3, and the plurality of bolts 4 pass through the fuel tank 1 and the tank cover 2, and also include a lifting mechanism for driving the lifting ring 3 to operate;

It also includes a parallelogram linkage mechanism for driving the box cover 2 to move;

It also includes a connection mechanism that drives the lifting mechanism and the parallelogram linkage mechanism to act successively;

In this embodiment, when the bolt 4 and the case cover 2 need to be disassembled, the nuts on the bolt 4 are manually removed at first, and then the connecting mechanism is operated to make the lifting ring 3 rise vertically first, then turn over, and then the parallelogram linkage mechanism moves again to make Lid 2 is open.

As a preferred solution of the above-mentioned embodiment, the lifting mechanism includes a fixed plate 5 fixed on the fuel tank 1, a through hole 6 and a through hole 7 are offered on the fixed plate 5, the through hole 6 is vertical, and the through hole 7 includes The vertical segment and the arc-shaped segment, the center of the arc-shaped segment is concentric with the center of the top of the through hole 6;

One end of the lift ring 3 is connected with a Z-shaped connecting rod 8, the connecting rod 8 is fixed with a moving shaft one 9 and a moving shaft two 10, the moving shaft one 9 passes through the through hole one 6, and the moving shaft two 10 passes through the through hole two 7;

The elevating mechanism also includes a support shaft 11 that is rotatably mounted on the fixed plate 5, the support shaft 11 is fixed with a rotating arm 12, and the rotating arm 12 offers a long hole, and the moving shaft two 10 passes through the long hole;

In this embodiment, the support shaft 11 and the rotating arm 12 are rotated counterclockwise. Since the moving shaft 10 passes through the elongated hole on the rotating arm 12, the moving shaft 19 is in the through hole 6, and the moving shaft 10 On the vertical section of the through hole 2 7, the rotating arm 12 makes the moving shaft one 9, the moving shaft one 9, the connecting rod 8, the lifting ring 3 and the bolt 4 move vertically upwards, and the bolt 4 breaks away from the fuel tank 1 and the bolt 4. Case cover 2, then the moving shaft two 10 moves to the arc-shaped section of the through hole two 7, and the rotating arm 12 that continues to rotate makes the moving shaft two 10 move along the arc-shaped section, so that the connecting rod 8, the lifting ring 3 and the Bolt 4 all rotates, does not hinder case cover 2 and move up.

As a preferred solution of the above-mentioned embodiment, the parallelogram linkage mechanism includes a platform fixed on the oil tank 1, four supports 13 are fixed on the platform, and a rotating shaft 14 is installed on two supports 13 for rotation, and on the other two supports 13 Rotating shaft two 15 is installed, swing arm one 16 is fixed on both sides of rotating shaft one 14, and swing arm two 17 is installed on both sides of rotating shaft two 15;

The other end of swing arm one 16 is rotationally connected with case cover 2, and the other end of swing arm two 17 is rotationally connected with case cover 2;

In this embodiment, two swing arms one 16 and two swing arms two 17 form a parallelogram mechanism. When the rotating shaft one 14 rotates clockwise, under the drive of swing arm one 16 and swing arm two 17, the box cover 2 Move up while moving to the right to disengage tank 1 and open tank 1.

As a preferred solution of the above-mentioned embodiment, the connection mechanism includes a main shaft 18 rotatably installed on the fuel tank 1, a gear one 19 is fixed on the main shaft 18, and a rack one 20 and a rack two 21 are respectively meshed on both sides of the gear one 19. Slider 1 is fixed on the bar one 20, slider 2 is fixed on the rack 2 21, and a rail that slides and cooperates with the slider 1 and the slider 2 is fixed on the fuel tank 1;

A special-shaped rod 22 is fixed on the support shaft 11, an L-shaped hole one is offered on the special-shaped rod 22, and the L-shaped hole one includes part one 23 and part two 24, and the drive shaft one passing through the L-shaped hole one is fixed on the rack one 20 32;

An extension rod 25 is fixed on the rotating shaft one 14, and the drive shaft two 26 is fixed on the other end of the extension rod 25, and the power plate 27 is fixed on the rack two 21, and the L-shaped hole two is offered on the power plate 27, and the two drive shafts 26 pass through the L Type hole two;

In this embodiment, the operating main shaft 18 and the first gear 19 rotate, and the first gear 19 rotates so that the rack one 20 and the second rack 21 move in the opposite direction. When the rack one 20 and the drive shaft one 32 move, the drive shaft one 32 First pass through part one 23 of the L-shaped hole one, and there is an angle between the moving track of part one 23 and the driving shaft one 32, so that the special-shaped rod 22, the support shaft 11, and the rotating arm 12 all rotate counterclockwise, so that the bolt 4 etc. rise first , in the above process, the drive shaft 2 26 first passes through the horizontal part of the L-shaped hole 2 on the power plate 27, and the parallelogram linkage does not act. In summary, the bolt 4 first rises and rotates;

After the bolt 4 is overturned to a certain angle, the second part 24 is just parallel to the moving track of the first drive shaft 32, and the first drive shaft 32 that continues to move will not move the bolt 4. At the same time, the second drive shaft 26 passes through the power plate 27 The vertical part of the L-shaped hole two on the top, under the promotion of the power plate 27, makes the extension rod 25, the drive shaft two 26, the rotating shaft one 14 etc. all rotate, so that the case cover 2 is opened.

As a preferred solution of the above embodiment, the connection mechanism also includes a gear two 28 fixed on the main shaft 18, an oil cylinder 29 fixed on the oil tank 1, and a rack three 30 meshing with the gear two 28 is fixed at the output end of the oil cylinder 29;

In this embodiment, the gear rack 3 30 is controlled by controlling the oil cylinder 29 , and then the gear 2 28 and the main shaft 18 are driven to rotate, thereby driving the connection mechanism to act.

As a preferred solution of the above embodiment, the first moving shaft 9 is fixed with the first bearing 31, the first bearing 31 is in contact with the inner wall of the through hole one 6, and the second moving shaft 10 is fixed with the second bearing, and the second bearing is in contact with the inner wall of the second through hole 7;

In this embodiment, the wear on the first moving shaft 9 and the second moving shaft 10 is reduced by providing the first bearing 31 and the second bearing.

As a preferred solution of the above embodiment, a bearing three is fixed on the moving shaft two 10, and the bearing three is in contact with the inner wall of the elongated hole;

In this embodiment, the wear on the moving shaft 2 10 is reduced through the provided bearing 3 .

As a preferred solution of the above embodiment, the drive shaft 1 32 is fixed with bearing 4, which is in contact with the inner wall of L-shaped hole 1, and the drive shaft 2 26 is fixed with bearing 5, which is in contact with the inner wall of L-shaped hole 2;

In this embodiment, the wear of the drive shaft 1 32 and the drive shaft 2 26 is reduced through the arrangement of the fourth bearing and the fifth bearing.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (8)

1. A10 kV oil immersed low-voltage axial double-split rectifier transformer comprises an oil tank (1) and a tank cover (2); characterized by further comprising:

the lifting device comprises a lifting ring (3), wherein a plurality of bolts (4) are fixed on the lifting ring (3), the bolts (4) penetrate through an oil tank (1) and a tank cover (2), and the lifting device further comprises a lifting mechanism for driving the lifting ring (3) to act;

the box cover also comprises a parallelogram link mechanism for driving the box cover (2) to act;

the device also comprises a connecting mechanism for driving the lifting mechanism and the parallelogram link mechanism to act successively.

2. The 10kV oil immersed low-voltage axial double-split rectifier transformer according to claim 1, wherein the lifting mechanism comprises a fixed plate (5) fixed on an oil tank (1), a first through hole (6) and a second through hole (7) are formed in the fixed plate (5), the first through hole (6) is vertical, and the second through hole (7) comprises a vertical section and a circular arc section;

one end of the lifting ring (3) is connected with a Z-shaped connecting rod (8), a first movable shaft (9) and a second movable shaft (10) are fixed on the connecting rod (8), the first movable shaft (9) penetrates through the first through hole (6), and the second movable shaft (10) penetrates through the second through hole (7);

the lifting mechanism further comprises a supporting shaft (11) rotatably arranged on the fixed plate (5), a rotating arm (12) is fixed on the supporting shaft (11), a strip hole is formed in the rotating arm (12), and the moving shaft II (10) penetrates through the strip hole.

3. The 10kV oil immersed low-voltage axial double-split rectifier transformer according to claim 2, wherein the parallelogram linkage mechanism comprises a platform fixed on an oil tank (1), four brackets (13) are fixed on the platform, a first rotating shaft (14) is rotatably installed on two brackets (13), a second rotating shaft (15) is rotatably installed on the other two brackets (13), swing arms (16) are fixed on two sides of the first rotating shaft (14), and swing arms (17) are rotatably installed on two sides of the second rotating shaft (15);

the other end of the swing arm I (16) is rotationally connected with the box cover (2), and the other end of the swing arm II (17) is rotationally connected with the box cover (2).

4. A 10kV oil immersed low-voltage axial double split rectifier transformer according to claim 3, characterized in that the connection mechanism comprises a main shaft (18) rotatably mounted on the oil tank (1), a first gear (19) is fixed on the main shaft (18), two sides of the first gear (19) are respectively meshed with a first rack (20) and a second rack (21), a first slide block is fixed on the first rack (20), a second slide block is fixed on the second rack (21), and a track in sliding fit with the first slide block and the second slide block is fixed on the oil tank (1);

a special-shaped rod (22) is fixed on the support shaft (11), an L-shaped hole I is formed in the special-shaped rod (22), the L-shaped hole I comprises a part I (23) and a part II (24), and a driving shaft I (32) penetrating through the L-shaped hole I is fixed on the rack I (20);

an extension rod (25) is fixed on the first rotating shaft (14), a second driving shaft (26) is fixed at the other end of the extension rod (25), a power plate (27) is fixed on the second rack (21), an L-shaped hole II is formed in the power plate (27), and the second driving shaft (26) penetrates through the L-shaped hole II.

5. A 10kV oil immersed low-voltage axial double split rectifier transformer according to claim 4, characterized in that the connection mechanism further comprises a gear two (28) fixed on the main shaft (18), an oil cylinder (29) fixed on the oil tank (1), and a rack three (30) meshed with the gear two (28) is fixed at the output end of the oil cylinder (29).

6. The 10kV oil immersed low-voltage axial double-split rectifier transformer according to claim 5, wherein a first bearing (31) is fixed on the first movable shaft (9), the inner wall of a first through hole (6) of the first bearing (31) is contacted, a second bearing is fixed on the second movable shaft (10), and the second bearing is contacted with the inner wall of a second through hole (7).

7. A 10kV oil immersed low voltage axial double split rectifier transformer according to claim 6, characterized in that a bearing three is fixed on the moving shaft two (10), and the bearing three is in contact with the inner wall of the long-bar hole.

8. The 10kV oil immersed low-voltage axial double-split rectifier transformer according to claim 7, wherein a bearing four is fixed on the first driving shaft (32), the bearing four is in contact with the inner wall of the first L-shaped hole, and a bearing five is fixed on the second driving shaft (26), and the bearing five is in contact with the inner wall of the second L-shaped hole.

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