CN217768051U

CN217768051U - 37kV photovoltaic power generation dry-type transformer for new forms of energy

Info

Publication number: CN217768051U
Application number: CN202221763323.2U
Authority: CN
Inventors: 路洪祥; 刘小利
Original assignee: Nanjing Daqo Transformer Systems Co ltd
Current assignee: Nanjing Daqo Transformer Systems Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-11-08
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to the technical field of auxiliary devices of electric power facilities, in particular to a 37kV dry-type transformer for photovoltaic power generation new energy, which has simple structure, is convenient for dismounting a cooling fan and is more convenient for overhauling and maintaining; the iron core is fixed between the upper iron yoke and the lower iron yoke, and U-shaped steel is arranged on both sides of the lower iron yoke; supporting plates are arranged on two sides of the U-shaped steel, a plurality of mounting mechanisms are arranged on the supporting plates, and the mounting mechanisms are used for mounting a cooling fan; the installation mechanism comprises four through holes arranged on the supporting plate, the four through holes are symmetrically distributed on two sides of the cooling fan, a fixed shaft is fixed in each through hole, a pressing plate in a 7 shape is rotatably arranged on each fixed shaft, a connecting ring is fixed on the cooling fan and is in contact with the supporting plate, and one end of the pressing plate is in contact with the connecting ring.

Description

37kV photovoltaic power generation dry-type transformer for new forms of energy

Technical Field

The utility model relates to a technical field of electric power facility auxiliary device especially relates to a 37kV photovoltaic power generation dry-type transformer for new forms of energy.

Background

The dry-type transformer is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply, the dry-type transformer refers to a transformer with an iron core and a winding which are not immersed in insulating oil, and in the photovoltaic power generation industry, the dry-type transformer with 37Kv is often used.

In the prior art, a dry-type transformer for 37kV photovoltaic power generation new energy is generally provided with a cooling fan for heat dissipation, and most of the cooling fans are installed through a plurality of screws, so that the problem of inconvenience in disassembly and assembly is caused, and improvement are needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a 37kV photovoltaic power generation dry-type transformer for new forms of energy, its simple structure, the convenience is carried out the dismouting to cooling blower, and it is more convenient to overhaul and maintain.

The utility model discloses a 37kV photovoltaic power generation dry-type transformer for new forms of energy, including upper yoke, lower yoke and the iron core of fixing between upper yoke and lower yoke, U shaped steel is all installed to lower yoke both sides; supporting plates are arranged on two sides of the U-shaped steel, a plurality of mounting mechanisms are arranged on the supporting plates, and the mounting mechanisms are used for mounting a cooling fan;

the mounting mechanism comprises four through holes formed in the supporting plate, the four through holes are symmetrically distributed on two sides of the cooling fan, a fixed shaft is fixed in each through hole, a 7-shaped pressing plate is rotatably mounted on each fixed shaft, a connecting ring is fixed on the cooling fan and is in contact with the supporting plate, and one end of each pressing plate is in contact with the connecting ring;

the mounting mechanism also comprises two driving shafts, and two ends of each driving shaft are respectively connected with the other ends of the two pressing plates on the same side;

the mounting mechanism further comprises a driving mechanism, the output end of the driving mechanism is provided with a lifting plate, the driving mechanism is used for driving the lifting plate to move along the vertical direction, the two sides of the lifting plate are provided with strip holes, and the driving shaft penetrates through the strip holes.

Furthermore, the driving mechanism comprises two optical axes fixed on the supporting plate, and the lifting plate slides on the two optical axes;

the driving mechanism further comprises a first rod fixed on the supporting plate, a second rod fixed on the lifting plate, a first swing arm and a second swing arm, wherein the first rod is rotatably provided with a power shaft, the power shaft is fixedly connected with the first swing arm, the first swing arm is rotatably connected with the second swing arm through a first rotating shaft, and the second swing arm is rotatably connected with the second rod through a second rotating shaft;

one end of the power shaft is fixed with a rocker arm;

when the pressure plate presses the connecting ring, the circle centers of the longitudinal sections of the power shaft, the first rotating shaft and the second rotating shaft are positioned on a straight line, and the straight line is parallel to the moving track of the lifting plate.

Furthermore, the driving mechanism also comprises a base shaft fixed on the rocker arm, a baffle is fixed at the end part of the base shaft, and an operating ring is sleeved on the base shaft.

Furthermore, a bearing is fixed on the driving shaft, and an outer ring of the bearing is in contact with the inner wall of the long hole.

Further, the installation mechanism also comprises a guide post fixed on the support plate, the guide post comprises a vertical section and a conical section, and the guide post penetrates through the connecting ring.

Furthermore, the other end of the optical axis is fixed with an anti-drop plate.

Further, a key is arranged between the rocker arm and the power shaft.

Further, a key is arranged between the first swing arm and the power shaft.

Compared with the prior art, the beneficial effects of the utility model are that: when cooling blower is fixed, each clamp plate compresses tightly the go-between, thereby play fixed cooling blower's effect, when needs are dismantled cooling blower and go-between, the operation lifter plate makes its vertical rebound, because the drive shaft passes the rectangular hole on the lifter plate, thereby make the drive shaft, the clamp plate all uses the fixed axle to rotate as the axle, the clamp plate breaks away from the go-between, then take off cooling blower again can, for prior art, cooling blower is when the dismouting, need not the dismouting bolt, the dismouting efficiency is higher, and there is not the problem that the bolt loses.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a top perspective view of the right front side of FIG. 1;

FIG. 4 is a partial enlarged view of portion B of FIG. 3;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a bottom view of FIG. 5;

in the drawings, the reference numbers: 1. a lower iron yoke; 2. an iron core; 3. u-shaped steel; 4. a support plate; 5. a cooling fan; 6. a fixed shaft; 7. pressing a plate; 8. a connecting ring; 9. a drive shaft; 10. a lifting plate; 11. an optical axis; 12. a first rod; 13. a second rod; 14. a first swing arm; 15. a second swing arm; 16. a power shaft; 17. a first rotating shaft; 18. a second rotating shaft; 19. a rocker arm; 20. an operating ring; 21. a bearing; 22. a guide post; 23. and (4) an anti-drop plate.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 6, the dry-type transformer for 37kV photovoltaic power generation new energy of the present invention comprises an upper iron yoke, a lower iron yoke 1, and an iron core 2 fixed between the upper iron yoke and the lower iron yoke 1, wherein U-shaped steel 3 is installed on both sides of the lower iron yoke 1; supporting plates 4 are arranged on two sides of the U-shaped steel 3, a plurality of installing mechanisms are arranged on the supporting plates 4, the installing mechanisms are used for installing cooling fans 5, and the air outlet directions of the cooling fans 5 face the iron core 2;

the mounting mechanism comprises four through holes arranged on the supporting plate 4, the four through holes are symmetrically distributed on two sides of the cooling fan 5, a fixing shaft 6 is fixed in each through hole, a pressing plate 7 in a 7 shape is rotatably mounted on the fixing shaft 6, a connecting ring 8 is fixed on the cooling fan 5, the connecting ring 8 is in contact with the supporting plate 4, and one end of the pressing plate 7 is in contact with the connecting ring 8;

the mounting mechanism further comprises two driving shafts 9, and two ends of each driving shaft 9 are respectively connected with the other ends of the two pressing plates 7 on the same side;

the mounting mechanism further comprises a driving mechanism, the output end of the driving mechanism is provided with a lifting plate 10, the driving mechanism is used for driving the lifting plate 10 to move along the vertical direction, two sides of the lifting plate 10 are provided with strip holes, and a driving shaft 9 penetrates through the strip holes;

in this embodiment, when the cooling fan 5 is fixed, each pressing plate 7 compresses the connecting ring 8, so as to play a role in fixing the cooling fan 5, when the cooling fan 5 and the connecting ring 8 need to be disassembled, the lifting plate 10 is operated to vertically move upwards, and the driving shaft 9 passes through the long hole in the lifting plate 10, so that the driving shaft 9 and the pressing plates 7 rotate by taking the fixed shaft 6 as a shaft, the pressing plates 7 are separated from the connecting ring 8, and then the cooling fan 5 is taken down.

Further, the driving mechanism comprises two optical axes 11 fixed on the supporting plate 4, and the lifting plate 10 slides on the two optical axes 11;

the driving mechanism further comprises a first rod 12 fixed on the supporting plate 4, a second rod 13 fixed on the lifting plate 10, a first swing arm 14 and a second swing arm 15, wherein the first rod 12 is rotatably provided with a power shaft 16, the power shaft 16 is fixedly connected with the first swing arm 14, the first swing arm 14 is rotatably connected with the second swing arm 15 through a first rotating shaft 17, and the second swing arm 15 is rotatably connected with the second rod 13 through a second rotating shaft 18;

one end of the power shaft 16 is fixed with a rocker arm 19;

when the pressure plate 7 presses the connecting ring 8 tightly, the centers of the longitudinal sections of the power shaft 16, the first rotating shaft 17 and the second rotating shaft 18 are positioned on a straight line, and the straight line is parallel to the moving track of the lifting plate 10;

in this embodiment, when the pressing plate 7 presses the connecting ring 8, the centers of the longitudinal sections of the power shaft 16, the first rotating shaft 17 and the second rotating shaft 18 are located on a straight line, and the straight line is parallel to the moving track of the lifting plate 10, that is, when the lifting plate 10 moves upward, no component force exists left or right, and the lifting plate 10 can only move by rotating the rocker arm 19 to fix or release the cooling fan 5, when the cooling fan 5 needs to be removed, the rocker arm 19 is rotated, and the lifting plate 10 moves upward along the optical axis 11 under the cooperation of the power shaft 16, the first swing arm 14, the second swing arm 15, the first rotating shaft 17, the second rotating shaft 18, and the like, so that the four pressing plates 7 rotate, the connecting ring 8 is released, when the cooling fan 5 is installed, the connecting ring 8 is placed on the supporting plate 4, and then the rocker arm is rotated, so that the centers of the longitudinal sections of the power shaft 16, the first rotating shaft 17 and the second rotating shaft 18 are located on a straight line, and the cooling fan 5 is fixed.

Furthermore, the driving mechanism also comprises a base shaft fixed on the rocker arm 19, a baffle is fixed at the end part of the base shaft, and an operating ring 20 is sleeved on the base shaft;

in the present embodiment, the operation ring 20 is held to rotate the swing arm 19, so that the hand and the operation ring 20 do not slide relatively, which is more comfortable.

Further, a bearing 21 is fixed on the driving shaft 9, and the outer ring of the bearing 21 is contacted with the inner wall of the long hole;

in this embodiment, the bearing 21 is in direct contact with the inner wall of the elongated hole, reducing wear on the drive shaft 9.

Further, the mounting mechanism further comprises a guide post 22 fixed on the support plate 4, the guide post 22 comprises a vertical section and a conical section, and the guide post 22 passes through the connecting ring 8;

in the present embodiment, when the connecting ring 8 is placed, the connecting ring 8 passes through the guide post 22, and then the rocker arm 19 is rotated to fix the connecting ring 8 by the pressing plate 7, so that the horizontal misalignment of the cooling fan 5 can be prevented.

Further, the other end of the optical axis 11 is fixed with an anti-drop plate 23;

in this embodiment, when the centers of circles of the longitudinal sections of the power shaft 16, the first rotating shaft 17 and the second rotating shaft 18 are located on a straight line, the lifting plate 10 contacts the anti-dropping plate 23, so that a user can know that the cooling fan 5 is fixed more conveniently.

Further, a key is arranged between the rocker arm 19 and the power shaft 16;

in this embodiment, the key prevents relative rotation between the swing arm and the power shaft 16.

Further, a key is arranged between the first swing arm 14 and the power shaft 16;

in this embodiment, the key prevents relative rotation between the swing arm one 14 and the power shaft 16.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the utensil connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A dry-type transformer for a 37kV photovoltaic power generation new energy comprises an upper iron yoke, a lower iron yoke (1) and an iron core (2) fixed between the upper iron yoke and the lower iron yoke (1), wherein U-shaped steel (3) is mounted on two sides of the lower iron yoke (1); the cooling device is characterized in that supporting plates (4) are arranged on two sides of the U-shaped steel (3), a plurality of mounting mechanisms are arranged on the supporting plates (4), and the mounting mechanisms are used for mounting a cooling fan (5);

the mounting mechanism comprises four through holes formed in the supporting plate (4), the four through holes are symmetrically distributed on two sides of the cooling fan (5), a fixing shaft (6) is fixed in each through hole, a pressing plate (7) in a 7 shape is rotatably mounted on each fixing shaft (6), a connecting ring (8) is fixed on the cooling fan (5), the connecting ring (8) is in contact with the supporting plate (4), and one end of the pressing plate (7) is in contact with the connecting ring (8);

the mounting mechanism further comprises two driving shafts (9), and two ends of each driving shaft (9) are respectively connected with the other ends of the two pressing plates (7) on the same side;

the mounting mechanism further comprises a driving mechanism, the output end of the driving mechanism is provided with a lifting plate (10), the driving mechanism is used for driving the lifting plate (10) to move along the vertical direction, the two sides of the lifting plate (10) are provided with strip holes, and the driving shaft (9) penetrates through the strip holes.

2. The dry-type transformer for the 37kV photovoltaic power generation new energy source as claimed in claim 1, characterized in that the driving mechanism comprises two optical axes (11) fixed on the supporting plate (4), and the lifting plate (10) slides on the two optical axes (11);

the driving mechanism further comprises a first rod (12) fixed on the supporting plate (4), a second rod (13) fixed on the lifting plate (10), a first swing arm (14) and a second swing arm (15), wherein the first rod (12) is rotatably provided with a power shaft (16), the power shaft (16) is fixedly connected with the first swing arm (14), the first swing arm (14) is rotatably connected with the second swing arm (15) through a first rotating shaft (17), and the second swing arm (15) is rotatably connected with the second rod (13) through a second rotating shaft (18);

one end of the power shaft (16) is fixed with a rocker arm (19);

when the pressure plate (7) presses the connecting ring (8), the centers of the longitudinal sections of the power shaft (16), the first rotating shaft (17) and the second rotating shaft (18) are positioned on a straight line, and the straight line is parallel to the moving track of the lifting plate (10).

3. The dry-type transformer for the 37kV photovoltaic power generation new energy according to claim 2, characterized in that the driving mechanism further comprises a base shaft fixed on the rocker arm (19), a baffle plate is fixed at the end of the base shaft, and an operating ring (20) is sleeved on the base shaft.

4. The dry-type transformer for the 37kV photovoltaic power generation new energy as claimed in claim 3, wherein a bearing (21) is fixed on the driving shaft (9), and an outer ring of the bearing (21) is in contact with an inner wall of the elongated hole.

5. The dry-type transformer for the 37kV photovoltaic power generation new energy, as claimed in claim 4, wherein the mounting mechanism further comprises a guide pillar (22) fixed on the support plate (4), the guide pillar (22) comprises a vertical section and a tapered section, and the guide pillar (22) passes through the connecting ring (8).

6. The dry-type transformer for the 37kV photovoltaic power generation new energy as claimed in claim 5, wherein the other end of the optical axis (11) is fixed with an anti-drop plate (23).

7. The dry-type transformer for the 37kV photovoltaic power generation new energy source as claimed in claim 6, characterized in that a key is arranged between the rocker arm (19) and the power shaft (16).

8. The dry-type transformer for the 37kV photovoltaic power generation new energy as claimed in claim 7, characterized in that a key is arranged between the first swing arm (14) and the power shaft (16).