CN216849758U

CN216849758U - Buffer structure of high-voltage circuit breaker and high-voltage circuit breaker

Info

Publication number: CN216849758U
Application number: CN202220238178.XU
Authority: CN
Inventors: 谭志华; 李伟余
Original assignee: Guangzhou Toshiba Baiyun Electrical Equipment Co Ltd
Current assignee: Guangzhou Toshiba Baiyun Electrical Equipment Co Ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-06-28
Anticipated expiration: 2032-01-28

Abstract

The utility model relates to a high voltage circuit breaker technical field especially relates to a buffer structure and high voltage circuit breaker of high voltage circuit breaker, wherein the buffer structure of high voltage circuit breaker includes the casing and sets up main shaft, separating brake spring and buffer in the casing; the main shaft is arranged in the shell and is sleeved with a crank arm; one end of the opening spring is connected with the shell, and the other end of the opening spring is connected with the crank arm; the buffer and the opening spring are arranged just opposite to each other, the buffer and the opening spring are arranged on two sides of the main shaft, the buffer can be matched with the crank arm to slow down rotation of the main shaft, and the distance between the buffer and the main shaft is adjustable. The utility model discloses a set up the buffer, when separating brake spring release energy, can drive the main shaft and rotate, and the buffer can cooperate the rotation in order to slow down the main shaft with the turning arm. The distance between the buffer and the main shaft is adjustable, namely the distance between the buffer and the crank arm is conveniently adjusted, and the buffering effect is guaranteed.

Description

Buffer structure of high-voltage circuit breaker and high-voltage circuit breaker

Technical Field

The utility model relates to a high voltage circuit breaker technical field especially relates to a buffer structure and high voltage circuit breaker of high voltage circuit breaker.

Background

Be equipped with buffer structure among the high voltage circuit breaker, can absorb the remaining energy after the work of separating brake spring when the separating brake of high voltage circuit breaker ends, protection mechanism avoids receiving too big impact, reduces the separating brake bounce, prevents to damage high voltage circuit breaker's spare part because of the huge impact force of separating brake spring release energy production, can make the separating brake curve process comparatively mild simultaneously. The existing buffer structure has a complex structure and is not easy to adjust the installation position.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high voltage circuit breaker's buffer structure, simple structure, mounted position is adjustable.

To achieve the purpose, the utility model adopts the following technical proposal:

a buffer structure of a high voltage circuit breaker, comprising:

a housing;

the main shaft is arranged in the shell, and a crank arm is sleeved on the main shaft;

one end of the opening spring is connected to the shell, and the other end of the opening spring is connected to the crank arm;

the buffer, the buffer with the separating brake spring is just to setting up, just the buffer with the separating brake spring set up in the both sides of main shaft, the buffer can with the turning arm cooperation is in order to slow down the rotation of main shaft, the buffer with distance between the main shaft is adjustable.

Preferably, the buffer is connected to the housing through a mounting plate, and a connection position of the mounting plate and the housing is adjustable.

Preferably, a strip-shaped hole is formed in the shell, the long axis direction of the strip-shaped hole is the extending direction of the opening spring, one end of a connecting piece penetrates through the strip-shaped hole to be connected to the mounting plate, and the connecting piece can move along the long axis direction to adjust the relative position of the buffer and the shell.

Preferably, the buffer is connected to the housing through a mounting plate, and a connection position of the buffer and the mounting plate is adjustable.

Preferably, the mounting plate is provided with a mounting through hole, the inner wall of the mounting through hole is provided with an internal thread, the outer wall of the buffer is provided with an external thread matched with the internal thread, and the length of the external thread is greater than that of the internal thread.

Preferably, the mounting plate and the buffer can be locked by a locking member.

Preferably, the crank arm comprises a fixed end and a movable end, the fixed end is sleeved on the main shaft, and the movable end is connected to the opening spring.

Preferably, the damper includes a piston rod that is contactable with the movable end of the crank arm.

Preferably, the piston rod is provided with a cushion pad.

Another object of the present invention is to provide a high voltage circuit breaker, including the above buffer structure of the high voltage circuit breaker.

The utility model has the advantages that: the utility model discloses be provided with the buffer, when separating brake spring release energy, can drive the main shaft and rotate, and the buffer can cooperate the rotation in order to slow down the main shaft with the turning arm. The distance between the buffer and the main shaft is adjustable, namely the distance between the buffer and the crank arm is conveniently adjusted, and the buffering effect is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of a buffering structure of a high-voltage circuit breaker provided by the present invention.

In the figure:

1. a housing;

2. a main shaft; 21. a crank arm;

3. a brake separating spring;

4. a buffer; 41. a piston rod;

5. and (7) mounting the plate.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment is as follows:

as shown in fig. 1, this embodiment provides a buffer structure of high voltage circuit breaker, including casing 1 with set up main shaft 2 in casing 1, separating brake spring 3 and buffer 4, wherein the cover is equipped with turning arm 21 on main shaft 2, separating brake spring 3's one end is connected in casing 1, the other end is connected in turning arm 21, buffer 4 is just to setting up with separating brake spring 3, and buffer 4 sets up in the both sides of main shaft 2 with separating brake spring 3, buffer 4 can cooperate in order to slow down the rotation of main shaft 2 with turning arm 21, the distance between buffer 4 and the main shaft 2 is adjustable. When the opening spring 3 releases energy, the main shaft 2 can be driven to rotate, and the buffer 4 can be matched with the crank arm 21 to slow down the rotation of the main shaft 2. Wherein the distance between the buffer 4 and the main shaft 2 is adjustable, namely the distance between the buffer 4 and the crank arm 21 is adjusted, and the buffering effect is ensured.

Further, the crank arm 21 includes a fixed end and a movable end, the fixed end is sleeved on the main shaft 2 and can rotate along with the main shaft 2, specifically, in the embodiment, the fixed end is welded with the main shaft 2, and the connecting strength is high and the transmission performance is strong. The movable end of the crank arm 21 is connected to the opening spring 3, and the movable end can impact the buffer 4 to play a role in opening buffer. Specifically, the buffer 4 includes a piston rod 41, and the movable end contacts with the piston rod 41 of the buffer 4 to perform a buffering function, and further, a buffer pad is disposed on the piston rod 41 and disposed on an end surface of the piston rod 41 contacting with the movable end to further perform a buffering effect.

In this embodiment, the buffer 4 is connected to the housing 1 through the mounting plate 5, and the connection position of the buffer 4 and the mounting plate 5 is adjustable. Specifically, the mounting plate 5 is provided with a mounting through hole, the inner wall of the mounting through hole is provided with an internal thread, the outer wall of the buffer 4 is provided with an external thread matched with the internal thread, the length of the external thread is larger than that of the internal thread, and the distance between the piston rod 41 of the buffer 4 and the spindle 2 can be adjusted by adjusting the positions of the buffer 4 and the mounting plate 5. After the distance adjustment is completed, the mounting plate 5 and the buffer 4 can be locked by the locking member.

The embodiment also provides a high-voltage circuit breaker, which comprises the buffer structure of the high-voltage circuit breaker and has a good buffer effect.

Example two:

the present embodiment is substantially the same as the buffering structure of the high voltage circuit breaker provided in the first embodiment, except that the buffer 4 is connected to the housing 1 through the mounting plate 5, and the connection position of the mounting plate 5 and the housing 1 is adjustable. Specifically, seted up the bar hole on the casing 1, the major axis direction in bar hole is the extending direction of separating brake spring 3, and the one end of connecting piece passes the bar hole and connects in mounting panel 5, and the connecting piece can move in order to adjust the distance between buffer 4 and the main shaft 2 along the major axis direction.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A buffer structure of a high voltage circuit breaker, comprising:

a housing (1);

the main shaft (2) is arranged in the shell (1), and a crank arm (21) is sleeved on the main shaft (2);

one end of the opening spring (3) is connected to the shell (1), and the other end of the opening spring (3) is connected to the crank arm (21);

buffer (4), buffer (4) with separating brake spring (3) just to setting up, just buffer (4) with separating brake spring (3) set up in the both sides of main shaft (2), buffer (4) can with turning arm (21) cooperation is in order to slow down the rotation of main shaft (2), buffer (4) with distance between main shaft (2) is adjustable.

2. The damping structure of a high voltage circuit breaker according to claim 1, characterized in that the damper (4) is connected to the housing (1) by means of a mounting plate (5), the connection position of the mounting plate (5) to the housing (1) being adjustable.

3. The buffer structure of a high-voltage circuit breaker according to claim 2, wherein a strip-shaped hole is formed in the housing (1), a long axis direction of the strip-shaped hole is an extending direction of the opening spring (3), one end of a connecting member passes through the strip-shaped hole and is connected to the mounting plate (5), and the connecting member can move along the long axis direction to adjust a distance between the buffer (4) and the main shaft (2).

4. The damping structure of a high voltage circuit breaker according to claim 1, characterized in that the damper (4) is connected to the housing (1) by means of a mounting plate (5), the connection position of the damper (4) to the mounting plate (5) being adjustable.

5. The buffer structure of the high-voltage circuit breaker according to claim 4, wherein the mounting plate (5) is provided with a mounting through hole, the inner wall of the mounting through hole is provided with an internal thread, the outer wall of the buffer (4) is provided with an external thread matched with the internal thread, and the length of the external thread is greater than that of the internal thread.

6. A damping structure for a high voltage circuit breaker according to claim 4 characterized in that the mounting plate (5) and the damper (4) can be locked by means of locking members.

7. The buffer structure of high-voltage circuit breaker according to claim 1, wherein said crank arm (21) comprises a fixed end and a movable end, said fixed end is sleeved on said main shaft (2), and said movable end is connected to said opening spring (3).

8. Cushioning structure of a high voltage circuit breaker according to claim 7, characterized in that said bumper (4) comprises a piston rod (41), said piston rod (41) being contactable with said movable end of said crank arm (21).

9. Damping structure for a high voltage circuit breaker according to claim 8 characterized in that a damping pad is arranged on the piston rod (41).

10. A high voltage circuit breaker, characterized in that it comprises a damping structure of a high voltage circuit breaker according to any of claims 1-9.