CN215770832U

CN215770832U - Dry vacuum on-load tap-changer

Info

Publication number: CN215770832U
Application number: CN202022416381.5U
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 electrical switches and discloses a dry type vacuum on-load tap-changer which comprises a shell, wherein a mounting plate is fixedly connected inside the shell, and the top of the mounting plate is fixedly connected with a switch body extending to the lower part of the mounting plate. This dry-type vacuum on-load tap-changer, make the switch body transmit buffer spring for because the vibrations that open and shut or produce when closed through the baffle, buffer spring plays preliminary cushioning effect this moment, and vibrations transmit for the connecting rod through the baffle, the connecting rod moves under the effect of vibrations, the connecting rod drives the adjustable shelf motion, the movable rod drives the rolling disc and uses the fixed axle to rotate as the centre of a circle under the effect of adjustable shelf this moment, make the compression of torsional spring atress when the rolling disc rotates, the effect of buffering once more has been played, the device makes the switch body can play better cushioning effect when closed or open and shut through a series of mechanical structure, avoided leading to the contact to appear droing because the vibrations that the switch body produced.

Description

Dry vacuum on-load tap-changer

Technical Field

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

Background

The on-load tap-changer is used for changing the transformation ratio by selecting different winding taps of the transformer under the condition of load, so that the voltage, the effective power and the reactive power of a power grid can be adjusted in time, and the on-load tap-changer is divided into a dry vacuum on-load tap-changer and a traditional on-load tap-changer.

The dry vacuum on-load tap-changer can have opening, closing and closing actions in the using process, the dry vacuum on-load tap-changer can vibrate in the opening, contacts on the surface of the dry vacuum on-load tap-changer can be loosened in the vibration process of the dry vacuum on-load tap-changer, and the dry vacuum on-load tap-changer can be damaged in the past for a long time, so that the dry vacuum on-load tap-changer is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the dry type vacuum on-load tap-changer which has the advantages of avoiding contact looseness caused by vibration and the like, and solves the problem of contact looseness caused by vibration.

(II) technical scheme

In order to achieve the purpose of loosening the contact caused by the vibration, the utility model provides the following technical scheme: a dry vacuum on-load tap-changer comprises a shell, wherein a mounting plate is fixedly connected inside the shell, a switch body extending to the lower part of the mounting plate is fixedly connected to the top of the mounting plate, a hollow cavity is formed in the inner wall of the shell, a fixed shaft is fixedly connected inside the hollow cavity, two rotating discs are sleeved outside the fixed shaft, torsion springs connected with the fixed shaft and the rotating discs are sleeved outside the fixed shaft, two movable frames are movably connected inside the hollow cavity, a movable rod extending to the outside of the movable frame and connected with the rotating discs is movably connected inside the movable frame, limit blocks located inside the movable frame are fixedly connected to the left side wall and the right side wall of the movable rod, a connecting rod extending to the inside of the shell is hinged inside the movable frame, a baffle plate contacting with the switch body is fixedly connected to one side, close to the switch body, of the connecting rod, one side of the baffle, which is far away from the switch body, is fixedly connected with a buffer spring connected with the inner wall of the shell.

Preferably, well cavity is total four, four well cavity is annular equidistance and distributes, and the left and right sides well between the wall of both sides around and both sides around the cavity equal fixedly connected with fixed axle between the wall of the left and right sides of well cavity.

Preferably, the activity recess has been seted up to one side that the adjustable shelf is close to the rolling disc, all installs the spacing recess of seting up in the adjustable shelf inside on the left and right sides wall of activity recess, and the inside swing joint of activity recess has the movable rod that extends to the adjustable shelf outside, and the inside swing joint of spacing recess has the stopper that extends to the spacing recess outside and is connected with the movable rod.

Preferably, the movable frame consists of a C-shaped connecting frame and a rotating shaft, and the rotating shaft is movably connected inside the C-shaped connecting frame.

Preferably, the mounting panel comprises the annular plate that quantity is one and the screw thread mounting hole that quantity is eight, and the screw thread mounting hole that quantity is eight is seted up at the top of annular plate, eight the screw thread mounting hole is annular equidistance and distributes.

Preferably, the baffle is four in total, four the baffle is annular equidistance and distributes, and the baffle is the annular board.

(III) advantageous effects

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

this dry-type vacuum on-load tap-changer, make the switch body transmit buffer spring because the vibrations that open and shut or produce when closed through the baffle, buffer spring plays preliminary cushioning effect this moment, and vibrations transmit for the connecting rod through the baffle, the connecting rod moves under the effect of vibrations, the connecting rod drives the adjustable shelf motion, the movable rod drives the rolling disc and uses the fixed axle to rotate as the centre of a circle under the effect of adjustable shelf this moment, make the compression of torsional spring atress when the rolling disc rotates, thereby the effect of buffering once more has been played, the device makes the switch body can play better cushioning effect when closed or open and shut through a series of mechanical structure, avoided because the closed or vibrations that open and shut the production of switch body lead to the contact to appear droing.

Drawings

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

FIG. 2 is a schematic view of the structure of the present invention showing the connection between the rotating disc and the movable rod;

FIG. 3 is an enlarged view of the point A in the structure of FIG. 2.

In the figure: the device comprises a shell 1, a mounting plate 2, a switch body 3, a hollow cavity 4, a fixed shaft 5, a rotating disc 6, a movable frame 7, a movable groove 8, a limiting groove 9, a movable rod 10, a limiting block 11, a torsion spring 12, a connecting rod 13, a baffle 14 and a buffer spring 15.

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 dry type vacuum on-load tap changer includes a housing 1, a mounting plate 2 is fixedly connected to the inside of the housing 1, the mounting plate 2 is composed of one annular plate and eight threaded mounting holes, the eight threaded mounting holes are formed at the top of the annular plate, the eight threaded mounting holes are distributed in an annular equidistant manner, the top of the mounting plate 2 is fixedly connected with a switch body 3 extending to the lower side of the mounting plate 2, hollow cavities 4 are formed in the inner wall of the housing 1, four hollow cavities 4 are provided, the four hollow cavities 4 are distributed in an annular equidistant manner, a fixed shaft 5 is fixedly connected between the front and rear side walls of the hollow cavities 4 at the left and right sides and between the left and right side walls of the hollow cavities 4 at the front and rear sides, a fixed shaft 5 is fixedly connected to the inside of the hollow cavities 4, and two rotating discs 6 are sleeved on the outside of the fixed shaft 5, the outer part of the fixed shaft 5 is sleeved with a torsion spring 12 which is simultaneously connected with the fixed shaft 5 and the rotating disc 6, the inner part of the hollow cavity 4 is movably connected with two movable frames 7, one side of the movable frame 7, which is close to the rotating disc 6, is provided with a movable groove 8, the left side wall and the right side wall of the movable groove 8 are respectively provided with a limiting groove 9 which is arranged in the movable frame 7, the inner part of the movable groove 8 is movably connected with a movable rod 10 which extends to the outer part of the movable frame 7, the inner part of the limiting groove 9 is movably connected with a limiting block 11 which extends to the outer part of the limiting groove 9 and is connected with the movable rod 10, the movable frame 7 consists of a C-shaped connecting frame and a rotating shaft, the inner part of the C-shaped connecting frame is movably connected with the rotating shaft, the inner part of the movable frame 7 is movably connected with a movable rod 10 which extends to the outer part of the movable frame 7 and is connected with the rotating disc 6, the limiting blocks 11 which are respectively and are fixedly connected with the left side wall and the right side wall of the movable rod 10, the inside of the movable frame 7 is hinged with a connecting rod 13 extending to the inside of the shell 1, one side of the connecting rod 13 close to the switch body 3 is fixedly connected with four baffle plates 14 contacting with the switch body 3, the four baffle plates 14 are distributed in an annular equal distance, the baffle plates 14 are annular plates, one side of the baffle plates 14 far away from the switch body 3 is fixedly connected with a buffer spring 15 connected with the inner wall of the shell 1, the baffle plates 14 enable the switch body 3 to transmit the vibration generated by opening and closing to the buffer spring 15, at the moment, the buffer spring 15 plays a primary buffering role, the vibration is transmitted to the connecting rod 13 through the baffle plates 14, the connecting rod 13 moves under the vibration effect, the connecting rod 13 drives the movable frame 7 to move, at the moment, the movable rod 10 drives the rotating disc 6 to rotate by taking the fixed shaft 5 as a circle center under the effect of the movable frame 7, and the torsion spring 12 is compressed under the force when the rotating disc 6 rotates, thereby the effect of buffering once more has been played, and the device makes switch body 3 can play better cushioning effect when the closure or open and shut through a series of mechanical structure, has avoided leading to the contact to appear droing because the vibrations that switch body 3 closure or open and shut the production.

In summary, the dry vacuum on-load tap changer, through the baffle 14, makes the switch body 3 transmit the vibration generated by opening or closing to the buffer spring 15, at this time, the buffer spring 15 plays a primary buffer role, and the vibration is transmitted to the connecting rod 13 through the baffle 14, the connecting rod 13 moves under the action of the vibration, the connecting rod 13 drives the movable frame 7 to move, at the moment, the movable rod 10 drives the rotating disc 6 to rotate around the fixed shaft 5 under the action of the movable frame 7, the torsion spring 12 is compressed under the stress when the rotating disc 6 rotates, so that the function of buffering again is achieved, the device makes switch body 3 can play better cushioning effect when closed or open and shut through a series of mechanical structure, has avoided leading to the contact to appear droing because the vibrations that switch body 3 closed or open and shut the production, has solved vibrations and has leaded to the not hard up problem of contact.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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. A dry vacuum on-load tap changer comprising a housing (1), characterized in that: the switch comprises a shell (1), a mounting plate (2) is fixedly connected to the inside of the shell (1), a switch body (3) extending to the lower portion of the mounting plate (2) is fixedly connected to the top of the mounting plate (2), a hollow cavity (4) is formed in the inner wall of the shell (1), a fixed shaft (5) is fixedly connected to the inside of the hollow cavity (4), two rotating discs (6) are sleeved on the outside of the fixed shaft (5), a torsion spring (12) connected with the fixed shaft (5) and the rotating discs (6) simultaneously is sleeved on the outside of the fixed shaft (5), two movable frames (7) are movably connected to the inside of the hollow cavity (4), a movable rod (10) extending to the outside of the movable frame (7) and connected with the rotating discs (6) is movably connected to the inside of the movable frame (7), and limit blocks (11) located inside the movable frame (7) are fixedly connected to the left side wall and the right side wall of the movable rod (10), the inside of adjustable shelf (7) articulates there is connecting rod (13) that extends to shell (1) inside, and one side fixedly connected with that connecting rod (13) is close to switch body (3) has baffle (14) that contact with switch body (3), and one side fixedly connected with that switch body (3) are kept away from to baffle (14) is connected with buffer spring (15) that are connected with shell (1) inner wall.

2. A dry vacuum on-load tap changer according to claim 1, characterized in that: well cavity (4) is total four, four well cavity (4) are annular equidistance and distribute, and the left and right sides well between the wall of the front and back both sides of cavity (4) and both sides around it equal fixedly connected with fixed axle (5) between the wall of the left and right sides of cavity (4).

3. A dry vacuum on-load tap changer according to claim 1, characterized in that: activity recess (8) have been seted up to one side that adjustable shelf (7) are close to rolling disc (6), all install on the left and right sides wall of activity recess (8) and set up spacing recess (9) inside adjustable shelf (7), the inside swing joint of activity recess (8) has movable rod (10) that extend to adjustable shelf (7) outside, and the inside swing joint of spacing recess (9) has stopper (11) that extend to spacing recess (9) outside and be connected with movable rod (10).

4. A dry vacuum on-load tap changer according to claim 1, characterized in that: the movable frame (7) is composed of a C-shaped connecting frame and a rotating shaft, and the rotating shaft is movably connected inside the C-shaped connecting frame.

5. A dry vacuum on-load tap changer according to claim 1, characterized in that: the mounting panel (2) comprises the annular plate that quantity is one and the screw thread mounting hole that quantity is eight, and the screw thread mounting hole that quantity is eight is seted up at the top of annular plate, eight the screw thread mounting hole is annular equidistance and distributes.

6. A dry vacuum on-load tap changer according to claim 1, characterized in that: baffle (14) are four in total, four baffle (14) are annular equidistance and distribute, and baffle (14) are the annular board.