CN217544329U - A 35kV on-load voltage regulating oil-immersed low-voltage double-split power transformer - Google Patents

Abstract

The utility model relates to the technical field of auxiliary devices of electric power facilities, in particular to a 35kV on-load voltage regulation oil immersed low-voltage double-split power transformer which has simple structure, simplifies the reinforcing mode of a high-voltage terminal and is more convenient to disassemble and assemble; the oil immersed transformer comprises an oil immersed transformer main body, and a high voltage terminal and a low voltage terminal which are fixed on the oil immersed transformer main body; the reinforcing mechanism comprises a first bearing fixed on the transformer main body, the first bearing and the high-voltage terminal are coaxially arranged, a driving disc is fixed on the outer ring of the first bearing, and a plurality of driving holes which are not coaxial with the driving disc are formed in the driving disc; the reinforcing mechanism further comprises a plurality of fixing rods fixed on the main body of the oil immersed transformer, the fixing rods are distributed around the high-voltage terminal in a circumferential array mode, a pressing plate is installed on the fixing rods in a rotating mode, one end of the pressing plate is provided with a clamp, the other end of the pressing plate is provided with a driving rod in a rotating mode, a sliding block is installed on the fixing rods in a sliding mode, a driving shaft is fixed on the sliding block and penetrates through a driving hole.

Description

A 35kV on-load voltage regulating oil-immersed low-voltage double-split power transformer

technical field

The utility model relates to the technical field of auxiliary devices of power facilities, in particular to a 35kV on-load voltage regulating oil-immersed low-voltage double-split power transformer.

Background technique

35kV on-load voltage regulating oil-immersed low-voltage double-split power transformer is a kind of oil-immersed transformer. Oil-immersed transformer is a new type of high-performance transformer with more reasonable structure and better performance. And rely on oil as the cooling medium. The main components of the transformer are iron core, winding, oil tank, oil pillow, respirator, explosion-proof pipe (pressure release valve), radiator, insulating sleeve, tap changer, gas relay, thermometer, oil purifier, etc. Between the silicon steel sheets of the oil-immersed transformer, due to the long-term immersion in the transformer, the oil can penetrate into it, and the transformer oil has an elastic buffering effect, so the noise of the oil-immersed transformer is small.

In the prior art, in order to reinforce the high-voltage terminal, a method of tightening and locking multiple bolts is adopted. In this way, when disassembling and assembling the high-voltage terminal, multiple bolts need to be disassembled and assembled, which brings certain inconvenience and needs to be improved.

Utility model content

In order to solve the above technical problems, the utility model provides a 35kV on-load voltage regulating oil-immersed low-voltage double-split power transformer, which has a simple structure, simplifies the reinforcement method of the high-voltage terminals, and is more convenient for disassembly and assembly.

A 35kV on-load voltage regulating oil-immersed low-voltage double-split power transformer of the utility model comprises an oil-immersed transformer main body, a high-voltage terminal and a low-voltage terminal fixed on the oil-immersed transformer; and also includes a reinforcement mechanism for reinforcement of the high-voltage terminals, and the reinforcement mechanism The first bearing is fixed on the main body of the transformer, the first bearing is arranged coaxially with the high-voltage terminal, the outer ring of the first bearing is fixed with a driving disk, and the driving disk is provided with a plurality of driving holes which are not coaxial with the driving disk;

The reinforcement mechanism also includes a number of fixing rods fixed on the main body of the oil-immersed transformer. The several fixing rods are distributed around the high-voltage terminals in a circular array. A pressure plate is rotatably installed on the fixed rod. A sliding block is slidably installed on the rod, a driving shaft is fixed on the sliding block, the driving shaft passes through the driving hole, and the other end of the driving rod is rotatably connected with the sliding block.

Further, the reinforcement mechanism further includes an extension arm fixed on the drive plate, a fixed shaft is fixed on the extension arm, and an operation ring is sleeved on the fixed shaft.

Further, the reinforcement mechanism further includes a bolt threadedly connected with the extension arm, the reinforcement mechanism further includes a positioning plate fixed on the main body of the oil-immersed transformer, and the positioning plate is provided with a groove with threads.

Further, the clamp includes two rotating shafts rotatably mounted on the end of the pressing plate, a screw sleeve is fixed on the rotating shaft, a screw rod is threadedly connected to the screw sleeve, and a fixing plate is fixed at one end of the screw rod.

Further, the clamp further includes two nuts threadedly connected with the screw rod, and the two nuts are respectively located on both sides of the screw sleeve.

Further, the second bearing is fixed on the drive shaft, and the second bearing is in contact with the inner wall of the driving hole.

Further, the other end of the screw rod is provided with a hexagonal groove.

Further, the pressing plate has an obtuse angle, and a reinforcing rod is fixed on the pressing plate.

Compared with the prior art, the beneficial effect of the present invention is: when the high-voltage terminal needs to be reinforced, the high-voltage terminal is fixed on the inner side of the first bearing, and then the drive plate is rotated, because the drive hole is not coaxial with the drive plate, and the slider It is limited by the fixed rod, so that the rotary drive plate makes the slider and the drive shaft move relative to the fixed rod. Under the push of the driving rod, the pressure plate and the clamp are rotated. Technically speaking, the device can control the clamping and releasing actions of each clamp by rotating the drive disk, which is convenient to operate and more convenient to disassemble and assemble the high-voltage terminal.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is a partial enlarged view of part A in Fig. 1;

Fig. 3 is the structure diagram of the front side 45° angle of view of the present invention;

Fig. 4 is a partial enlarged view of part A in Fig. 3;

Figure 5 is a cross-sectional view of the first bearing, the drive plate, the drive hole, the drive shaft and the second bearing;

Symbols in the drawings: 1. Main body of oil-immersed transformer; 2. High-voltage terminal; 3. Low-voltage terminal; 4. Bearing one; 5. Driving disc; 6. Driving hole; 7. Fixing rod; ;10, slide block; 11, drive shaft; 12, extension arm; 13, fixed shaft; 14, operating ring; 15, bolt; 16, positioning plate; 17, shaft; 18, screw sleeve; 19, lead screw; 20 , Fixed plate; 21, Nut; 22, Bearing two; 23, Reinforcing rod.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below with reference to 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.

As shown in FIGS. 1 to 5 , a 35kV on-load voltage regulating oil-immersed low-voltage double-split power transformer of the present invention includes an oil-immersed transformer body 1 and a high-voltage terminal 2 and a low-voltage terminal 3 fixed on it; Including a reinforcing mechanism for reinforcing the high-voltage terminal 2, the reinforcing mechanism includes a bearing-4 fixed on the main body of the transformer, the bearing-4 is coaxially arranged with the high-voltage terminal 2, the outer ring of the bearing-4 is fixed with a driving disk 5, and the driving disk 5 A number of drive holes 6 that are not coaxial with the drive disc 5 are opened;

The reinforcement mechanism also includes a plurality of fixing rods 7 fixed on the main body 1 of the oil-immersed transformer. The plurality of fixing rods 7 are distributed around the high-voltage terminal 2 in a circular array. A pressure plate 8 is rotatably installed on the fixing rod 7. One end of the pressure plate 8 is provided with a clamp, and the other end is provided with a clamp. A driving rod 9 is rotatably installed, a sliding block 10 is slidably installed on the fixing rod 7, a driving shaft 11 is fixed on the sliding block 10, the driving shaft 11 passes through the driving hole 6, and the other end of the driving rod 9 is rotatably connected with the sliding block 10;

In this embodiment, when the high-voltage terminal 2 needs to be reinforced, the high-voltage terminal 2 is fixed on the inner side of the bearing one 4, and then the drive plate 5 is rotated. Since the drive hole 6 is not coaxial with the drive plate 5, and the slider 10 is The limit of the fixed rod 7, so that the rotary drive plate 5 makes the slider 10 and the drive shaft 11 move relative to the fixed rod 7. Under the push of the driving rod 9, the pressure plate 8 and the clamp are rotated, and each clamp connects the high voltage terminal 2. Clamping, compared with the prior art, the device can control the clamping and releasing actions of each clamp by rotating the drive disk 5, which is convenient to operate and more convenient for the disassembly and assembly of the high-voltage terminal 2.

Further, the reinforcement mechanism further includes an extension arm 12 fixed on the drive plate 5, a fixed shaft 13 is fixed on the extension arm 12, and an operation ring 14 is sleeved on the fixed shaft 13;

In this embodiment, under the action of the extension arm 12 , the operating ring 14 is held to rotate the driving disk 5 , which is more comfortable for the user, and the user can use less force to rotate the driving disk 5 .

Further, the reinforcement mechanism also includes bolts 15 threaded with the extension arm 12, the reinforcement mechanism also includes a positioning plate 16 fixed on the oil-immersed transformer main body 1, and a groove with threads is provided on the positioning plate 16;

In this embodiment, after the high voltage terminals 2 are reinforced by the clamps, the bolts 15 are screwed into the grooves of the positioning plate 16 to prevent the rotation of the drive plate 5 and affect the fixing effect of the high voltage terminals 2 .

Further, the clamp includes two rotating shafts 17 rotatably installed on the end of the pressing plate 8, the rotating shafts 17 are fixed with a screw sleeve 18, the screw sleeve 18 is threadedly connected with a screw rod 19, and one end of the screw rod 19 is fixed with a fixing plate 20;

In this embodiment, under the action of gravity, the fixing plate 20 is in a vertical state. After the splint rotates at a certain angle, the fixing plate 20 contacts the high-voltage terminal 2 to fix the high-voltage terminal 2. By rotating the screw rod 19, the screw sleeve 18 The distance between the fixing plate 20 and the high-voltage terminal 2 is changed with the cooperation of the high-voltage terminal 2 , so that the size of the high-voltage terminal 2 can be adapted more conveniently.

Further, the clamp also includes two nuts 21 threadedly connected with the screw rod 19, and the two nuts 21 are respectively located on both sides of the screw sleeve 18;

In this embodiment, after the adjustment is completed, the position of the plate 20 is fixed, and the two nuts 21 are tightened to prevent the screw rod 19 from rotating.

Further, the second bearing 22 is fixed on the drive shaft 11, and the second bearing 22 is in contact with the inner wall of the driving hole 6;

In this embodiment, the wear of the drive shaft 11 can be reduced by installing the bearing two 22 on the drive shaft 11 .

Further, the other end of the screw rod 19 is provided with a hexagonal groove;

In this embodiment, the screw rod 19 is rotated by using an Allen wrench to extend into the hexagonal groove, which is more convenient to operate.

Further, the pressing plate 8 is at an obtuse angle, and a reinforcing rod 23 is fixed on the pressing plate 8;

In this embodiment, the overall stability of the pressing plate 8 is enhanced by the provided reinforcing rods 23 .

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description in the description and the attached drawings, and the connection methods of each part are all mature bolts, rivets, welding in the prior art. and other conventional means, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here, and the content that is not described in detail in this specification. It belongs to the prior art known to those skilled in the art.

The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present utility model, several improvements and modifications can be made. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (8)

1. A35 kV on-load voltage regulation oil immersed type low-voltage double-split power transformer comprises an oil immersed transformer main body (1), and a high-voltage terminal (2) and a low-voltage terminal (3) which are fixed on the oil immersed transformer main body; the transformer is characterized by further comprising a reinforcing mechanism for reinforcing the high-voltage terminal (2), wherein the reinforcing mechanism comprises a first bearing (4) fixed on the transformer main body, the first bearing (4) and the high-voltage terminal (2) are coaxially arranged, a driving disc (5) is fixed on the outer ring of the first bearing (4), and a plurality of driving holes (6) which are not coaxial with the driving disc (5) are formed in the driving disc (5);

the reinforcing mechanism further comprises a plurality of fixing rods (7) fixed on the oil immersed transformer main body (1), the fixing rods (7) are distributed around the high-voltage terminal (2) in a circumferential array mode, pressing plates (8) are installed on the fixing rods (7) in a rotating mode, one end of each pressing plate (8) is provided with a clamp, a driving rod (9) is installed at the other end of each fixing rod in a rotating mode, a sliding block (10) is installed on each fixing rod (7) in a sliding mode, a driving shaft (11) is fixed on each sliding block (10), the driving shaft (11) penetrates through a driving hole (6), and the other end of each driving rod (9) is connected with each sliding block (10) in a rotating mode.

2. The 35kV on-load voltage regulation oil-immersed low-voltage double-split power transformer is characterized in that the reinforcing mechanism further comprises an extension arm (12) fixed on the driving plate (5), a fixed shaft (13) is fixed on the extension arm (12), and an operating ring (14) is sleeved on the fixed shaft (13).

3. The 35kV on-load voltage regulation oil-immersed low-voltage double-splitting power transformer of claim 2, wherein the reinforcing mechanism further comprises a bolt (15) in threaded connection with the extension arm (12), the reinforcing mechanism further comprises a positioning plate (16) fixed on the oil-immersed transformer body (1), and a groove with threads is formed in the positioning plate (16).

4. The 35kV on-load voltage regulation oil-immersed low-voltage double-split power transformer is characterized in that the clamp comprises two rotating shafts (17) rotatably mounted at the end parts of the pressing plates (8), threaded sleeves (18) are fixed on the rotating shafts (17), lead screws (19) are in threaded connection with the threaded sleeves (18), and a fixing plate (20) is fixed at one end of each lead screw (19).

5. The 35kV on-load tap changing oil immersed low-voltage double-split power transformer is characterized in that the clamp further comprises two nuts (21) in threaded connection with the lead screw (19), and the two nuts (21) are respectively arranged on two sides of the threaded sleeve (18).

6. The 35kV on-load voltage regulation oil-immersed low-voltage double-splitting power transformer as claimed in claim 5, wherein a second bearing (22) is fixed on the driving shaft (11), and the second bearing (22) is in contact with the inner wall of the driving hole (6).

7. The 35kV on-load voltage regulation oil-immersed low-voltage double-splitting power transformer as claimed in claim 6, wherein a hexagonal groove is formed in the other end of the screw rod (19).

8. The 35kV on-load voltage regulation oil-immersed low-voltage double-split power transformer as claimed in claim 7, wherein the pressure plate (8) is at an obtuse angle, and the reinforcing rod (23) is fixed on the pressure plate (8).

Images