CN215770833U

CN215770833U - Bridge type vacuum on-load tap-changer

Info

Publication number: CN215770833U
Application number: CN202022416383.4U
Authority: CN
Inventors: 王继忠
Original assignee: Shuangcheng Electromechanical Technology Development Co ltd
Current assignee: Shuangcheng Electromechanical Technology Development Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2022-02-08
Anticipated expiration: 2030-10-27

Abstract

The utility model relates to the technical field of on-load tap changers and discloses a bridge-type vacuum on-load tap changer which comprises a bridge-type vacuum on-load tap changer main body, a gear transmission box and an electric controller, wherein a connector is fixedly installed at the top of the bridge-type vacuum on-load tap changer main body, an installation cavity is formed in the gear transmission box, and an output shaft of the connector is fixedly connected with a horizontal transmission shaft which penetrates through the gear transmission box and extends into the installation cavity. This bridging formula vacuum on-load tap-changer has solved and has come the transmission motion through conical gear transmission case between present bridging formula vacuum on-load tap-changer main part and the electric mechanism, but because the gear can appear wearing and tearing after long-time rotation, and the piece of wearing and tearing is piled up and can further aggravate wearing and tearing in the tooth's socket, and then the life of gear reduces when meeting, seriously influences the problem of bridging formula vacuum on-load tap-changer's normal work.

Description

Bridge type vacuum on-load tap-changer

Technical Field

The utility model relates to the technical field of on-load tap-changers, in particular to a bridge-type vacuum on-load tap-changer.

Background

The on-load tap-changer is a voltage-regulating device which is suitable for operation under the condition of transformer excitation or load and is used for changing tap-connection position of transformer winding, and its basic principle is that under the condition of ensuring that load current is not interrupted, the switching between taps in the transformer winding can be implemented so as to change the number of turns of winding, i.e. voltage ratio of transformer and finally implement the goal of regulating voltage.

The motion is transmitted between the existing bridging type vacuum on-load tap-changer main body and an electric mechanism through a bevel gear transmission box, but the abrasion can occur after the gear rotates for a long time, and abraded debris is accumulated in a tooth socket to further aggravate the abrasion, so that the service life of the gear is reduced in the meeting process, the normal work of the bridging type vacuum on-load tap-changer is seriously influenced, and therefore the bridging type vacuum on-load tap-changer is provided for solving the problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a bridging type vacuum on-load tap-changer which has the advantages of convenience in use and low maintenance frequency, and solves the problems that the conventional bridging type vacuum on-load tap-changer main body and an electric mechanism transmit motion through a bevel gear transmission box, but abrasion occurs after a gear rotates for a long time, abrasion is further aggravated when abraded debris is accumulated in a tooth socket, the service life of the gear is further shortened, and the normal work of the bridging type vacuum on-load tap-changer is seriously influenced.

(II) technical scheme

In order to realize the purposes of convenient use and low maintenance frequency, the utility model provides the following technical scheme: the utility model provides a bridging formula vacuum on-load tap-changer, includes bridging formula vacuum on-load tap-changer main part, gear transmission case and electric controller, bridging formula vacuum on-load tap-changer main part top fixed mounting has the connector, the installation cavity has been seted up in the gear transmission case, connector output shaft fixedly connected with runs through gear transmission case and extends to the horizontal drive shaft in the installation cavity, electric controller output shaft fixedly connected with runs through gear transmission case and extends to the vertical drive shaft in the installation cavity, horizontal drive shaft right side fixed mounting has the first bevel gear that is located the installation cavity, vertical drive shaft top fixed mounting has the second bevel gear that is located the installation cavity and meshes with first bevel gear mutually, installation cavity roof fixed mounting has horizontal electronic slip table, the slider bottom fixed mounting of horizontal electronic slip table has electric putter, electric putter's output shaft fixed mounting has the mounting bracket, mounting bracket bottom fixed mounting has the electro-magnet, mounting bracket top fixed mounting has the oil storage box, oil storage box left side fixed mounting has the transfer pump, the liquid outlet fixed mounting of transfer pump has the shower nozzle, mounting chamber diapire fixed mounting has the collection box that is located the second bevel gear right side.

Preferably, a protective relay is fixedly mounted at the top of the main body of the bridge-type vacuum on-load tap-changer, a maintenance hole communicated with the installation cavity is formed in the front side of the gear transmission box, and a sealing door is clamped in the maintenance hole.

Preferably, the moving direction of the transverse electric sliding table sliding block is left and right, and the bottom of the mounting frame is flush with the top of the collection box when the output shaft of the electric push rod is completely extended.

Preferably, a liquid storage cavity is formed in the oil storage box, lubricating oil is filled in the liquid storage cavity, a sealing plug screw penetrating through the oil storage box and extending into the liquid storage cavity is connected to the top of the oil storage box in a threaded mode, and a liquid level observation window is fixedly mounted on the front side of the oil storage box.

Preferably, the liquid inlet of the liquid conveying pump is communicated with the liquid storage cavity, and the top of the collecting box is provided with a slag storage groove matched with the electromagnet.

Preferably, the transverse electric sliding table, the electric push rod, the electromagnet and the infusion pump are all electrically connected with the electric controller.

(III) advantageous effects

Compared with the prior art, the utility model provides a bridge type vacuum on-load tap-changer which has the following beneficial effects:

the bridging vacuum on-load tap changer controls the transverse electric sliding table to move rightwards to the top of the tooth groove of the second bevel gear, then controls the electric push rod output shaft to extend to enable the electromagnet to be close to the tooth groove of the second bevel gear, enables magnetic debris in the tooth groove of the first bevel gear and the second bevel gear to be attracted to the electromagnet by starting the electromagnet, and simultaneously enables lubricating oil in the oil storage box to be extracted by starting the infusion pump to be sprayed to the tooth groove of the first bevel gear through the spray head, so that friction between the first bevel gear and the second bevel gear during rotation can be reduced, maintenance frequency is reduced, the magnetic debris adsorbed on the electromagnet can be collected into the collection box by arranging the collection box, the purposes of convenient use and low maintenance frequency are achieved, and the problem that the transmission motion between the existing bridging vacuum on-load tap changer main body and the electric mechanism through the bevel gear transmission box is effectively solved, but because the gear can appear wearing and tearing after long-time rotation, and the piece of wearing and tearing is piled up and can further aggravate wearing and tearing in the tooth's socket, and then the life of gear reduces, seriously influences the problem of the normal work of bridging vacuum on-load tap-changer.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the gear box of the present invention;

FIG. 3 is an enlarged view of a portion of the area A shown in FIG. 2 according to the present invention.

In the figure: the vacuum on-load tap-changer comprises a 1 bridge type vacuum on-load tap-changer main body, a 2 gear transmission box, a 3 electric controller, a 4 connector, a 5 installation cavity, a 6 horizontal transmission shaft, a 7 vertical transmission shaft, a 8 first bevel gear, a 9 second bevel gear, a 10 transverse electric sliding table, a 11 electric push rod, a 12 installation frame, a 13 electromagnet, a 14 oil storage box, a 15 infusion pump, a 16 spray head and a 17 collection box.

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.

Referring to fig. 1-3, a bridge type vacuum on-load tap-changer comprises a bridge type vacuum on-load tap-changer main body 1, a gear transmission case 2 and an electric controller 3, wherein a protective relay is fixedly installed on the top of the bridge type vacuum on-load tap-changer main body 1, a connector 4 is fixedly installed on the top of the bridge type vacuum on-load tap-changer main body 1, an installation cavity 5 is formed in the gear transmission case 2, a maintenance hole communicated with the installation cavity 5 is formed in the front side of the gear transmission case 2, a sealing door is clamped in the maintenance hole, a horizontal transmission shaft 6 penetrating through the gear transmission case 2 and extending into the installation cavity 5 is fixedly connected to an output shaft of the connector 4, a vertical transmission shaft 7 penetrating through the gear transmission case 2 and extending into the installation cavity 5 is fixedly connected to an output shaft of the electric controller 3, a first bevel gear 8 positioned in the installation cavity 5 is fixedly installed on the right side of the horizontal transmission shaft 6, a second bevel gear 9 which is positioned in the installation cavity 5 and meshed with the first bevel gear 8 is fixedly installed at the top of the vertical transmission shaft 7, a transverse electric sliding table 10 is fixedly installed on the top wall of the installation cavity 5, the moving direction of a sliding block of the transverse electric sliding table 10 is left-right movement, an electric push rod 11 is fixedly installed at the bottom of the sliding block of the transverse electric sliding table 10, an installation frame 12 is fixedly installed on an output shaft of the electric push rod 11, an electromagnet 13 is fixedly installed at the bottom of the installation frame 12, an oil storage box 14 is fixedly installed at the top of the installation frame 12, a liquid storage cavity is formed in the oil storage box 14, lubricating oil is filled in the liquid storage cavity, a sealing screw plug which penetrates through the oil storage box 14 and extends into the liquid storage cavity is in threaded connection with the top of the oil storage box 14, a liquid level observation window is fixedly installed at the front side of the oil storage box 14, an infusion pump 15 is fixedly installed at the left side of the oil storage box, an inlet of the infusion pump 15 is communicated with the liquid storage cavity, the transverse electric sliding table 10, Electric putter 11, electro-magnet 13 and transfer pump 15 all are connected with electric controller 3 electricity, and the liquid outlet fixed mounting of transfer pump 15 has

shower nozzle

16, and 5 diapire fixed mounting in installation cavity have the collection box 17 that is located second bevel gear 9 right side, and mounting bracket 12 bottom and collection box 17 top parallel and level when electric putter 11 output shaft extends completely collect the box 17 top and offer the storage slag chute with electro-magnet 13 looks adaptation.

When the device is used, the transverse electric sliding table 10 is controlled to move rightwards to the top of the tooth space of the second bevel gear 9, the electric push rod 11 is controlled to extend the output shaft to enable the electromagnet 13 to be close to the tooth space of the second bevel gear 9, the electromagnet 13 is turned on, magnetic debris in the tooth spaces of the first bevel gear 8 and the second bevel gear 9 is attracted to the electromagnet 13, lubricating oil in the oil storage box 14 is extracted by starting the infusion pump 15 and sprayed to the tooth space of the first bevel gear 8 through the spray head 16, friction when the first bevel gear 8 and the second bevel gear 9 rotate can be reduced, maintenance frequency is reduced, the collection box 17 is arranged, and the magnetic debris adsorbed on the electromagnet 13 can be collected into the collection box 17, so that the purposes of convenience in use and low maintenance frequency are achieved.

To sum up, the bridging vacuum on-load tap-changer moves to the top of the tooth space of the second bevel gear 9 by controlling the transverse electric sliding table 10 to move rightwards, then the electromagnet 13 is close to the tooth space of the second bevel gear 9 by controlling the extension of the output shaft of the electric push rod 11, the electromagnet 13 is turned on, magnetic debris in the tooth spaces of the first bevel gear 8 and the second bevel gear 9 are attracted to the electromagnet 13, meanwhile, lubricating oil in the oil storage box 14 is extracted by starting the infusion pump 15 and sprayed to the tooth space of the first bevel gear 8 through the spray head 16, so that friction between the first bevel gear 8 and the second bevel gear 9 during rotation can be reduced, maintenance frequency is reduced, the magnetic debris adsorbed on the electromagnet 13 can be collected into the collection box 17 by arranging the collection box 17, and the purposes of convenient use and low maintenance frequency are achieved, thereby effectively solving the problem that the existing bridging vacuum on-load tap-changer and the electric mechanism come from the bevel gear transmission box The transmission motion, but because the gear can appear wearing and tearing after long-time rotation, and the piece of wearing and tearing is piled up and can further aggravate the wearing and tearing in the tooth's socket, and then the life of gear reduces when meeting, seriously influences the problem of the normal work of bridging formula vacuum on-load tap-changer.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bridge connection formula vacuum on-load tap-changer, includes bridge connection formula vacuum on-load tap-changer main part (1), gear drive case (2) and electric controller (3), its characterized in that: bridge connection formula vacuum on-load tap-changer main part (1) top fixed mounting has connector (4), installation cavity (5) have been seted up in gear drive case (2), connector (4) output shaft fixedly connected with runs through gear drive case (2) and extends to horizontal drive shaft (6) in installation cavity (5), electric controller (3) output shaft fixedly connected with runs through gear drive case (2) and extends to vertical drive shaft (7) in installation cavity (5), horizontal drive shaft (6) right side fixed mounting has first bevel gear (8) that are located installation cavity (5), vertical drive shaft (7) top fixed mounting has second bevel gear (9) that are located installation cavity (5) and mesh with first bevel gear (8), installation cavity (5) roof fixed mounting has horizontal electronic slip table (10), the utility model discloses a horizontal electronic slip table (10) is characterized in that the slider bottom fixed mounting of horizontal electronic slip table (10) has electric putter (11), the output shaft fixed mounting of electric putter (11) has mounting bracket (12), mounting bracket (12) bottom fixed mounting has electro-magnet (13), mounting bracket (12) top fixed mounting has oil storage box (14), oil storage box (14) left side fixed mounting has transfer pump (15), the liquid outlet fixed mounting who transfers pump (15) has shower nozzle (16), installation cavity (5) diapire fixed mounting has collection box (17) that are located second bevel gear (9) right side.

2. A bridging vacuum on-load tap changer according to claim 1, characterized in that: the bridge type vacuum on-load tap-changer is characterized in that a protective relay is fixedly mounted at the top of the bridge type vacuum on-load tap-changer main body (1), a maintenance hole communicated with the installation cavity (5) is formed in the front side of the gear transmission box (2), and a sealing door is clamped in the maintenance hole.

3. A bridging vacuum on-load tap changer according to claim 1, characterized in that: the moving direction of the sliding block of the transverse electric sliding table (10) is left and right, and the bottom of the mounting frame (12) is flush with the top of the collecting box (17) when the output shaft of the electric push rod (11) is completely extended.

4. A bridging vacuum on-load tap changer according to claim 1, characterized in that: the oil storage box is characterized in that a liquid storage cavity is formed in the oil storage box (14), lubricating oil is filled in the liquid storage cavity, a sealing plug screw penetrating through the oil storage box (14) and extending into the liquid storage cavity is connected to the top of the oil storage box (14) in a threaded mode, and a liquid level observation window is fixedly mounted on the front side of the oil storage box (14).

5. A bridging vacuum on-load tap changer according to claim 4, characterized in that: the liquid inlet of the liquid conveying pump (15) is communicated with the liquid storage cavity, and the top of the collecting box (17) is provided with a slag storage groove matched with the electromagnet (13).

6. A bridging vacuum on-load tap changer according to claim 1, characterized in that: the transverse electric sliding table (10), the electric push rod (11), the electromagnet (13) and the infusion pump (15) are all electrically connected with the electric controller (3).