CN113436837B

CN113436837B - Power transformer convenient to overhaul

Info

Publication number: CN113436837B
Application number: CN202110783760.4A
Authority: CN
Inventors: 张磊; 赵坚; 黎大健; 陈梁远; 饶夏锦; 余长厅; 芦宇峰; 颜海俊; 苏毅; 潘绍明; 李锐
Original assignee: Electric Power Research Institute of Guangxi Power Grid Co Ltd
Current assignee: Electric Power Research Institute of Guangxi Power Grid Co Ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-07-12
Anticipated expiration: 2041-07-12
Also published as: CN113436837A

Abstract

The invention provides a power transformer convenient to overhaul, belonging to the technical field of transformers, comprising a shell, wherein the lower inner wall of the shell is provided with a placing groove and a second sliding groove, the lower inner wall of the placing groove is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a first rotating shaft, the rear end of the first rotating shaft is rotatably connected to the rear inner wall of the shell, the rear inner wall of the shell is rotatably connected with a lead screw, the lead screw and the circumferential surface of the first rotating shaft are fixedly connected with rotating wheels, a belt is connected between the two rotating wheels in a transmission manner, a second rack is slidably connected in a second chute, a thread groove is formed in the rear end of the second rack, the lead screw is in threaded connection with the thread groove, and third chutes are formed in the left end and the right end of the second chute.

Description

Power transformer convenient to overhaul

Technical Field

The invention belongs to the technical field of transformers, and particularly relates to a power transformer convenient to overhaul.

Background

A power transformer is a stationary electrical device for converting an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values, and a transformer is a stationary electrical device for converting ac voltage and current to transmit ac power. The electric energy transmission is realized according to the principle of electromagnetic induction. Transformers can be classified into power transformers, test transformers, instrument transformers, and transformers for special purposes in terms of their use: the power transformer is necessary equipment for power transmission and distribution and power consumer distribution; the device is used for carrying out voltage withstand (boosting) test on electrical equipment by the test transformer; the instrument transformer is used for electrical measurement and relay protection (PT, CT) of a power distribution system; the transformer for special purposes comprises a furnace transformer for smelting, an electric welding transformer, a rectifier transformer for electrolysis, a small-sized regulating transformer and the like.

The power transformer is the most widely used equipment in the power grid, once the power transformer stops running due to a fault, the safe running of the whole power grid is threatened, and therefore frequent overhaul can be carried out on the power transformer, and the existing power transformer is mostly fixed at one position, so that an electrician is inconvenient to inspect and maintain the power transformer, and the overhaul time is prolonged.

Disclosure of Invention

The invention aims to provide a power transformer convenient to overhaul, and aims to solve the problem that in the prior art, an electrician cannot conveniently check and maintain the power transformer.

In order to achieve the purpose, the invention provides the following technical scheme:

a power transformer convenient to overhaul comprises a shell, wherein a placing groove and a second sliding groove are formed in the lower inner wall of the shell, a servo motor is fixedly connected to the lower inner wall of the placing groove, a first rotating shaft is fixedly connected to the output end of the servo motor, the rear end of the first rotating shaft is rotatably connected to the rear inner wall of the shell, a lead screw is rotatably connected to the rear inner wall of the shell, rotating wheels are fixedly connected to the lead screw and the circumferential surface of the first rotating shaft, a belt is connected between the two rotating wheels in a transmission manner, a second rack is slidably connected to the second sliding groove, a threaded groove is formed in the rear end of the second rack, the lead screw is in threaded connection with the threaded groove, third sliding grooves are formed in the left end and the right end of the second sliding groove, sliding blocks are fixedly connected to the left end and the right end of the second rack, and the two sliding blocks are respectively slidably connected to the two third sliding grooves, two first racks of upper end fixedly connected with of shell, two fixed blocks of upper end fixedly connected with of shell, two first spout has all been seted up to the upper end of fixed block, two equal sliding connection has two wheels in the first spout, the upside of second rack is provided with the transformer main part, the mounting groove has all been seted up, four in the lower extreme four corners department of transformer main part the wheel is installed respectively in four mounting grooves, first square groove has been seted up to the lower extreme of transformer main part, it is connected with the second pivot to rotate between the inner wall about first square groove, the three straight-teeth gear of circumference fixed surface connected with of second pivot, it is three the straight-teeth gear is connected with two first racks and second rack meshing respectively.

As a preferable scheme of the invention, four corners of the lower end of the shell are fixedly connected with supporting legs, and anti-skid grains are carved at the lower ends of the four supporting legs.

As a preferable scheme of the invention, the left end and the right end of the shell are respectively provided with three ventilation openings, and filter screens are respectively arranged in the six ventilation openings.

As a preferable scheme of the invention, the front end of the shell is provided with a square groove, and the square groove is movably hinged with a sealing door through a hinge.

As a preferable scheme of the invention, the front end of the sealing door is fixedly connected with a handle, and the circumferential surface of the handle is wrapped with an anti-skidding spongy cushion.

As a preferred scheme of the invention, the upper end of the housing is fixedly connected with a rain shield, the lower inner wall of the second chute is fixedly connected with a first limiting block and a second limiting block, and the screw rod movably penetrates through the second limiting block.

Compared with the prior art, the invention has the beneficial effects that:

1. when the scheme needs to overhaul the power transformer, the handle is held by hand to open the sealing door, the servo motor and an external power supply are electrified, the servo motor is started to enable the output end of the servo motor to rotate, the output end of the servo motor rotates to drive the first rotating shaft to rotate, the rotating electric rotating wheel of the first rotating shaft rotates, the rotating electric rotating wheel enables the screw rod to rotate, the second rack moves backwards through the rotation of the screw rod in the thread groove, the three straight gears rotate through the backward movement of the second rack, the straight gears drive the transformer main body to move forwards through the rotation of the three straight gears on the two first racks, when the second rack is in contact with the second limiting block, the motor is turned off, the transformer main body reaches the front end of the shell to stop moving, the overhaul of an electrician is convenient, and when the overhaul of the electrician is finished, the servo motor is started again, make servo motor's output carry out the reverse rotation, make the transformer main part pass through the reverse rotation of spur gear, realize moving backward, finally realize the convenient maintenance to power transformer.

2. The rain baffle is favorable to keeping out the washing away of rainwater, and the rainwater can follow the inclined plane landing of rain baffle, make the rainwater can not follow the vent and get into in the shell, first stopper and second stopper are favorable to preventing the removal of second rack excessive, the handle is favorable to snatching of user, antiskid foam-rubber cushion is favorable to increasing the frictional force with the hand and makes user more firm when snatching, the vent is favorable to the ventilation in the shell, the temperature that makes transformer body can not be too high, be favorable to keeping transformer body running state, the filter screen can prevent the entering of dust and insect, the supporting leg is favorable to placing of device, anti-skidding line is favorable to stably placing of device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic top view of the housing of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic structural diagram of a transformer body according to the present invention;

FIG. 5 is a front cross-sectional view of the present invention;

FIG. 6 is an enlarged view of the invention at B in FIG. 5.

In the figure: 1. a housing; 2. a rain shield; 3. a sealing door; 4. a handle; 5. a vent; 6. supporting legs; 7. a fixed block; 8. a first chute; 9. a first rack; 10. a second rack; 11. a first stopper; 12. a second chute; 13. a screw rod; 14. a second limiting block; 15. a placement groove; 16. a servo motor; 17. a first rotating shaft; 18. a belt; 19. a rotating wheel; 20. a transformer body; 21. a wheel; 22. mounting grooves; 23. a first square groove; 24. a second rotating shaft; 25. a spur gear; 26. a thread groove; 27. a third chute; 28. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-6, the technical solution provided in this embodiment is as follows:

a power transformer convenient to overhaul comprises a shell 1, a placing groove 15 and a second sliding groove 12 are formed in the lower inner wall of the shell 1, a servo motor 16 is fixedly connected to the lower inner wall of the placing groove 15, a first rotating shaft 17 is fixedly connected to the output end of the servo motor 16, the rear end of the first rotating shaft 17 is rotatably connected to the rear inner wall of the shell 1, a lead screw 13 is rotatably connected to the rear inner wall of the shell 1, rotating wheels 19 are fixedly connected to the circumferential surfaces of the lead screw 13 and the first rotating shaft 17, a belt 18 is connected between the two rotating wheels 19 in a transmission manner, a second rack 10 is slidably connected in the second sliding groove 12, a threaded groove 26 is formed in the rear end of the second rack 10, the lead screw 13 is in threaded connection with the threaded groove 26, third sliding grooves 27 are formed in the left end and the right end of the second sliding groove 12, sliding blocks 28 are fixedly connected to the left end and the right end of the second rack 10, the two sliding blocks 28 are respectively slidably connected in the two third sliding grooves 27, two first racks 9 of upper end fixedly connected with of shell 1, two fixed blocks 7 of upper end fixedly connected with of shell 1, first spout 8 has all been seted up to the upper end of two fixed blocks 7, equal sliding connection has two wheels 21 in two first spouts 8, the upside of second rack 10 is provided with transformer main part 20, mounting groove 22 has all been seted up to transformer main part 20's lower extreme four corners department, four wheels 21 are installed respectively in four mounting grooves 22, first square groove 23 has been seted up to transformer main part 20's lower extreme, it is connected with second pivot 24 to rotate between the inner wall about first square groove 23, the three straight-teeth gear 25 of circumference fixed surface fixedly connected with of second pivot 24, three straight-teeth gear 25 is connected with two first racks 9 and the meshing of second rack 10 respectively.

In the embodiment of the present invention, the supporting legs 6 are beneficial to protecting the transformer main body 20, the fixing block 7 is beneficial to opening the first sliding chute 8, the first sliding chute 8 is beneficial to sliding of the wheels 21, so that the movement of the transformer main body 20 is more stable, the first rack 9 is beneficial to meshing of the spur gears 25, the second rack 10 is beneficial to opening the threaded grooves 26, and the second sliding chute 12 is beneficial to opening the second rack 10. The screw 13 facilitates the second rack 10 to be placed and moved, the placing groove 15 facilitates the placing of the servo motor 16, the servo motor 16 refers to power, the servo motor 16 can select different types according to actual needs, for example, the servo motor 16 with the model of TCHV32-1500-3-10S is selected, the servo motor 16 is electrically connected with an external power supply, for those skilled in the art, the servo motor 16 is the prior art and is not described in much detail, the first rotating shaft 17 facilitates the rotation of the rotating wheel 19, the belt 18 facilitates the transmission between the two rotating wheels 19, the rotating wheel 19 facilitates the rotation of the screw 13, the transformer body 20 facilitates the placing of the mounting groove 22 and the first square groove 23, the wheel 21 facilitates the stable movement of the transformer body 20, the mounting groove 22 facilitates the mounting of the wheel 21, the first square groove 23 facilitates the placing and rotating of the second rotating shaft 24, the second rotation shaft 24 facilitates the fixing of the spur gear 25, the thread groove 26 facilitates the thread connection of the lead screw 13, the third sliding groove 27 facilitates the sliding of the sliding block 28, and the sliding block 28 facilitates the stable sliding of the second rack 10.

Specifically, referring to fig. 2, four corners of the lower end of the housing 1 are fixedly connected with supporting legs 6, and the lower ends of the four supporting legs 6 are engraved with anti-skid threads.

In the embodiment of the invention, the support legs 6 facilitate the placement of the device, and the anti-slip threads facilitate the stable placement of the device.

Specifically, referring to fig. 1, three ventilation openings 5 are formed at the left end and the right end of the housing 1, and filter screens are installed in the six ventilation openings 5.

In the embodiment of the present invention, the ventilation opening 5 facilitates ventilation in the housing 1, so that the temperature of the transformer body 20 is not too high, thereby facilitating the maintenance of the operation state of the transformer body 20, and the filter screen can prevent dust and insects from entering.

Specifically, referring to fig. 1, a square groove is formed at the front end of the housing 1, and the square groove is movably hinged with a sealing door 3 through a hinge.

In the specific embodiment of the invention, the front end of the shell 1 is provided with a square groove, the square groove is movably hinged with a sealing door 3 through a hinge, and the sealing door 3 is beneficial to sealing the device.

Specifically, referring to fig. 1, a handle 4 is fixedly connected to a front end of the sealing door 3, and an anti-slip sponge pad is wrapped on a circumferential surface of the handle 4.

In the embodiment of the invention, the handle 4 is beneficial to the grasping of the user, and the antiskid spongy cushion is beneficial to increasing the friction force with the hand so that the user can grasp the antiskid spongy cushion more firmly.

Specifically, please refer to fig. 1-3, the upper end of the housing 1 is fixedly connected with a rain baffle 2, the lower inner wall of the second chute 12 is fixedly connected with a first limiting block 11 and a second limiting block 14, and the screw rod 13 movably penetrates through the second limiting block 14.

In the embodiment of the present invention, the rain shield 2 is favorable for resisting the erosion of the rain, the rain can slide off the inclined surface of the rain shield 2, so that the rain cannot enter the housing 1 from the ventilation opening 5, and the first stopper 11 and the second stopper 14 are favorable for preventing the second rack 10 from moving excessively.

The working principle or working process of the power transformer convenient to overhaul provided by the invention is as follows: the handle 4 is held by hand to open the sealing door 3, the servo motor 16 is electrified with an external power supply, the servo motor 16 is started to enable the output end of the servo motor 16 to rotate, the output end of the servo motor 16 rotates to drive the first rotating shaft 17 to rotate, the rotating electric rotating wheel 19 of the first rotating shaft 17 rotates, the rotating wheel 19 rotates to enable the screw rod 13 to rotate, the second rack 10 moves backwards through the rotation of the screw rod 13 in the thread groove 26, the three straight gears 25 rotate through the backward movement of the second rack 10, the straight gears 25 drive the transformer main body 20 to move forwards through the rotation of the three straight gears 25 on the two first racks 9, when the second rack 10 is contacted with the second limiting block 14, the motor is closed, the transformer main body 20 reaches the front end of the shell 1 to stop moving, the maintenance of an electrician is convenient, when the maintenance of the electrician is finished, the servo motor 16 is started again, the output end of the servo motor 16 is rotated in the reverse direction, and the transformer main body 20 is moved backward by the reverse rotation of the spur gear 25.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A power transformer convenient to overhaul, includes shell (1), its characterized in that: a placing groove (15) and a second sliding groove (12) are formed in the lower inner wall of the shell (1), a servo motor (16) is fixedly connected to the lower inner wall of the placing groove (15), a first rotating shaft (17) is fixedly connected to the output end of the servo motor (16), the rear end of the first rotating shaft (17) is rotatably connected to the rear inner wall of the shell (1), a lead screw (13) is rotatably connected to the rear inner wall of the shell (1), rotating wheels (19) are fixedly connected to the circumferential surfaces of the lead screw (13) and the first rotating shaft (17), a belt (18) is connected between the two rotating wheels (19) in a transmission mode, a second rack (10) is slidably connected to the second sliding groove (12), a thread groove (26) is formed in the rear end of the second rack (10), the lead screw (13) is in threaded connection with the thread groove (26), third sliding grooves (27) are formed in the left end and the right end of the second sliding groove (12), the left end and the right end of the second rack (10) are fixedly connected with sliding blocks (28), the two sliding blocks (28) are respectively connected into two third sliding grooves (27) in a sliding manner, the upper end of the shell (1) is fixedly connected with two first racks (9), the upper end of the shell (1) is fixedly connected with two fixed blocks (7), the upper ends of the two fixed blocks (7) are respectively provided with a first sliding groove (8), the two first sliding grooves (8) are respectively connected with two wheels (21) in a sliding manner, the upper side of the second rack (10) is provided with a transformer main body (20), the four corners of the lower end of the transformer main body (20) are respectively provided with a mounting groove (22), the four wheels (21) are respectively mounted in the four mounting grooves (22), the lower end of the transformer main body (20) is provided with a first square groove (23), a second rotating shaft (24) is rotatably connected between the left inner wall and the right inner wall of the first square groove (23), the circumference surface of the second rotating shaft (24) is fixedly connected with three straight gears (25), and the three straight gears (25) are respectively meshed with the two first racks (9) and the second rack (10).

2. An easy-to-service power transformer as claimed in claim 1, in which: the equal fixedly connected with supporting leg (6) of lower extreme four corners department of shell (1), four the lower extreme of supporting leg (6) is all carved with anti-skidding line.

3. An easy-to-service power transformer as claimed in claim 2, in which: three vents (5) are arranged at the left end and the right end of the shell (1), and filter screens are arranged in the six vents (5).

4. An easy-to-service power transformer as claimed in claim 3, in which: the front end of the shell (1) is provided with a square groove, and the square groove is movably hinged with a sealing door (3) through a hinge.

5. An easy-to-service power transformer according to claim 4, characterised in that: the front end fixedly connected with handle (4) of sealing door (3), the circumference surface of handle (4) all wraps up anti-skidding foam-rubber cushion.

6. An easy-to-service power transformer according to claim 5, characterised in that: the upper end fixedly connected with weather shield (2) of shell (1), the first stopper of lower inner wall fixedly connected with (11) and second stopper (14) of second spout (12), second stopper (14) is run through in lead screw (13) activity.