CN106373808B - Breaker with synchronous opening and closing and elastic adjusting device thereof - Google Patents
Breaker with synchronous opening and closing and elastic adjusting device thereof Download PDFInfo
- Publication number
- CN106373808B CN106373808B CN201610796380.3A CN201610796380A CN106373808B CN 106373808 B CN106373808 B CN 106373808B CN 201610796380 A CN201610796380 A CN 201610796380A CN 106373808 B CN106373808 B CN 106373808B
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- pull rod
- elastic
- adjusting
- base
- breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The breaker with the synchronous opening and closing and the elastic adjusting device thereof have the advantages of simple structure, reasonable design and convenience in use, and can adjust the opening and closing of the breaker at the same time. The device comprises an adjusting sleeve, a sliding pull rod, a base and an elastic element for opening and closing synchronous adjustment; one end of the base is open, and the base and an adjusting sleeve which is in threaded connection with the open end of the base form an elastic adjusting bin; one end of the sliding pull rod is arranged in the elastic adjusting bin, and an elastic element is arranged between the sliding pull rod and the adjusting sleeve; the other end of the sliding pull rod extends out of the elastic adjusting bin; the extending end of the sliding pull rod and the pull rod connected to the adjusting sleeve or the base are respectively used as two connecting ends of the elastic adjusting device. The invention discloses a circuit breaker with synchronous opening and closing, which comprises an operating mechanism, a plurality of circuit breakers, connecting pull rods and elastic adjusting devices, wherein the connecting pull rods are respectively connected between the operating mechanism and the circuit breakers.
Description
Technical Field
The invention belongs to the technical field of high-voltage circuit breakers, relates to parallel short-circuit current breaking equipment, and particularly relates to a circuit breaker with synchronous opening and closing and an elastic adjusting device thereof.
Background
With the rapid development of power systems, the short-circuit capacity of the system is larger and larger, and at the same time, the requirements on the breaking capacity of a breaker are higher and higher, including the requirements on the opening and closing synchronization of the breaker.
Mechanical linkage adopted between the poles of the existing circuit breaker can only adjust the synchronism of opening or closing generally, and cannot adjust the synchronism of opening and closing simultaneously. For example: the synchronism of the opening of the parallel arc extinguish chambers influences the uniformity of the current of each branch, and the fracture with overlarge short circuit current value is difficult to break; the synchronism of closing affects the direct current component of the loop, and the opening and the closing are difficult under the working condition of immediately opening the switch after closing. The existing structure can not meet the requirement of bidirectional adjustment, and can not adjust the opening synchronism and closing synchronism of the circuit breaker.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the breaker with the synchronous opening and closing and the elastic adjusting device thereof, which have the advantages of simple structure, reasonable design and convenient use, and can adjust the opening and closing of the breaker at the same time.
The invention is realized by the following technical scheme:
an elastic adjusting device of a circuit breaker with synchronous opening and closing comprises an adjusting sleeve, a sliding pull rod, a base and an elastic element for synchronous opening and closing adjustment; one end of the base is open, and the base and an adjusting sleeve which is in threaded connection with the open end of the base form an elastic adjusting bin; one end of the sliding pull rod is arranged in the elastic adjusting bin, and an elastic element is arranged between the sliding pull rod and the adjusting sleeve; the other end of the sliding pull rod extends out of the elastic adjusting bin; the extending end of the sliding pull rod and the pull rod connected to the adjusting sleeve or the base are respectively used as two connecting ends of the elastic adjusting device.
Preferably, when the sliding pull rod extends out of the base, the pull rod connected to the adjusting sleeve is an adjusting pull rod connected with threads in the adjusting sleeve.
Furthermore, a locking nut used for fixing the adjusting sleeve and the adjusting pull rod is arranged on the adjusting pull rod.
Preferably, when the sliding pull rod extends out of the adjusting sleeve, the pull rod connected to the base adopts a fixed pull rod arranged outside the base.
Preferably, the elastic element is one or more of a spiral spring, a disc spring or other axial elastic deformation device.
The invention discloses a circuit breaker with synchronous opening and closing, which comprises an operating mechanism, a plurality of circuit breakers, connecting pull rods and elastic adjusting devices, wherein the connecting pull rods are respectively connected between the operating mechanism and the circuit breakers.
Preferably, the two connecting ends of the elastic adjusting device are respectively and fixedly connected with the connecting pull rod or the output crank arm of the operating mechanism or the output end of the circuit breaker through joints.
Furthermore, in the elastic adjusting device corresponding to at least two circuit breakers, the extending end of the sliding pull rod and the pull rod connected to the adjusting sleeve or the base are opposite in connecting end between the operating mechanism and the corresponding circuit breaker.
Compared with the prior art, the invention has the following beneficial technical effects:
the elastic adjusting bin is formed to accommodate the elastic element, so that accurate positioning is guaranteed when the elastic element is pushed or pulled between the sliding pull rod and the base, synchronism of operation can be guaranteed through the elastic element when the elastic element moves reversely, the requirement of high opening and closing synchronism operation can be met, the problem that the circuit breaker cannot meet the adjusting requirements of opening synchronism and closing synchronism simultaneously in the opening and closing process is solved, and the non-synchronism of opening and closing is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of an elastic adjustment device for setting an adjustment rod according to example 1 of the present invention.
Fig. 3 is a schematic structural diagram of an elastic adjustment device provided with a fixed pull rod in example 2 of the present invention.
In the figure: the device comprises an elastic adjusting device 1, a connector 2, a connecting pull rod 3, an operating mechanism 4, a circuit breaker 5, an adjusting sleeve 11, a sliding pull rod 12, an elastic element 13, a base 14, an adjusting pull rod 15 and a locking nut 16.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention relates to an elastic adjusting device of a circuit breaker with synchronous opening and closing, which comprises an adjusting sleeve 11, a sliding pull rod 12, a base 14 and an elastic element 13 for synchronous opening and closing adjustment; one end of the base 14 is opened, and the base 14 and the adjusting sleeve 11 which is in threaded connection with the opening end form an elastic adjusting bin; one end of the sliding pull rod 12 is arranged in the elastic adjusting bin; the other end of the sliding pull rod 12 extends out of the elastic adjusting bin; the elastic element 13 is located between the adjustment sleeve 11 and the sliding pull rod 12. The preferred sliding rod 12 is disposed in the flexible adjustment chamber at one end in the form of a piston that slides within a base 14. The protruding end of the sliding pull rod 12 and the pull rod connected to the adjusting sleeve 11 or the base 14 serve as two connecting ends of the elastic adjusting device. Two connecting ends of the elastic adjusting device 1 are respectively connected to a phase column of the circuit breaker 5 or a connecting rod between the phase column and the operating mechanism 4. Wherein, the elastic element 13 adopts one or more combination of spiral spring, disc spring or other axial elastic deformation devices. In particular, the invention is used as exemplified below.
Example 1
As shown in fig. 2, when the slide rod 12 is extended from the base 14, the rod connected to the adjustment sleeve 11 employs an adjustment rod 15 threaded into the adjustment sleeve 11. The adjusting pull rod 15 is provided with a locking nut 16 for fixing the adjusting sleeve 11 and the adjusting pull rod 15.
The adjusting sleeve 11 is in threaded connection with the base 14 and the adjusting pull rod 15, the adjusting sleeve 11 can drive the adjusting pull rod 15 to adjust the relative distance between the adjusting pull rod 15 and the base 14 along the axial direction of the adjusting pull rod, and the locking nut 16 is used for fixing the adjusting pull rod 15 and the adjusting sleeve 11.
Example 2
As shown in fig. 3, when the slide rod 12 is protruded from the adjustment sleeve 11, the rod connected to the base 14 employs a fixed rod provided outside the base 14. The adjusting sleeve 11 is in threaded connection with the base 14, and the adjusting sleeve 11 can adjust the relative distance between the adjusting sleeve and the base 14 along the axial direction of the adjusting sleeve.
The circuit breaker with the synchronous opening and closing of the invention is shown in figure 1, and takes a parallel circuit breaker as an example, and an elastic adjusting device 1 can adopt two structures as shown in examples 1 and 2.
The elastic adjusting device 1 adopts the structure described in the example 1 to connect the left circuit breaker, the adjusting pull rod 15 is connected with the left circuit breaker 5 through the connector 2, and the sliding pull rod 12 is connected with the operating mechanism 4 through the connecting pull rod 3;
the elastic adjusting device 1 adopts the structure described in the example 2 to connect the circuit breaker on the right side, the fixed pull rod is connected with the operating mechanism 4 through the joint 2, and the sliding pull rod 12 is connected with the circuit breaker on the right side through the connecting pull rod 3.
When the circuit breaker 5 is operated, the synchronism of opening or closing is taken as a reference, and the non-synchronism of opening and closing caused by different transmission toughness can be effectively reduced through the elastic value of the elastic element 13.
On the basis of the above-described arrangement.
When the breaker 5 is in the opening process, the operating mechanism 4 drives the breaker 5 to open, and the breaker can simultaneously open through adjusting the adjusting sleeve 11 in the elastic adjusting device 1.
When the breaker 5 is in a closing process, the breaking synchronization is taken as a reference, the operating mechanism 4 drives the breaker 5 to close, and meanwhile, the elastic element 13 in the elastic adjusting device 1 is under the action of pressure, so that the movement displacement of the pushed object adjusting pull rod 2 is delayed, and the transmission elastic variables of the breaker 5 are consistent, thereby achieving the purposes of consistent actions and realizing the simultaneous closing operation of the breaker.
By combining the analysis of the opening and closing processes of the circuit breakers, the elastic adjusting device for the circuit breaker with the same opening and closing period can meet the requirement of the synchronism of the opening and closing of the circuit breaker 5, and the circuit breaker with the same opening and closing period is formed.
Claims (4)
1. The circuit breaker with the synchronous opening and closing is characterized by comprising an operating mechanism (4), a plurality of circuit breakers (5), a connecting pull rod (3) and an elastic adjusting device (1), wherein the connecting pull rod (3) and the elastic adjusting device are connected between the operating mechanism (4) and the circuit breakers (5);
the elastic adjusting device (1) comprises an adjusting sleeve (11), a sliding pull rod (12), a base (14) and an elastic element (13) for on-off synchronous adjustment;
one end of the base (14) is opened, and the base (14) and an adjusting sleeve (11) which is in threaded connection with the opening end of the base form an elastic adjusting bin;
one end of the sliding pull rod (12) is arranged in the elastic adjusting bin and is in a piston shape, the sliding pull rod slides in the base (14), and an elastic element (13) is arranged between the sliding pull rod and the adjusting sleeve (11); the other end of the sliding pull rod (12) extends out of the elastic adjusting bin; the elastic adjusting bin is used for accommodating the elastic element;
the extending end of the sliding pull rod (12) is used as one connecting end of the elastic adjusting device, and the pull rod connected to the adjusting sleeve (11) or the base (14) is used as the other connecting end of the elastic adjusting device; two connecting ends of the elastic adjusting device are connected between phase columns of the circuit breaker (5) or on a connecting rod between the phase columns and the operating mechanism (4);
in the elastic adjusting device (1) corresponding to at least two circuit breakers (5), the extending end of a sliding pull rod (12) and a pull rod connected to an adjusting sleeve (11) or a base (14) are opposite, and the connecting ends between an operating mechanism (4) and the corresponding circuit breakers (5) are opposite;
when the sliding pull rod (12) extends out of the base (14), the pull rod connected to the adjusting sleeve (11) adopts an adjusting pull rod (15) connected with the inner thread of the adjusting sleeve (11);
when the sliding pull rod (12) extends out of the adjusting sleeve (11), the pull rod connected to the base (14) adopts a fixed pull rod arranged outside the base (14);
when the breaker (5) is in a switching-off process, the operating mechanism (4) drives the breaker (5) to switch off, and the breaker can simultaneously perform switching-off operation by adjusting the adjusting sleeve (11) in the elastic adjusting device (1);
when the breaker (5) is switched on, the switching-off synchronization is taken as a reference, the operating mechanism (4) drives the breaker (5) to be switched on, and meanwhile, the elastic element (13) in the introduced elastic adjusting device (1) is under the action of pressure, so that the movement displacement of the pushed object is delayed, the transmission elastic variables of the breaker (5) are consistent, the action consistency is achieved, and the purpose of simultaneously switching-on operation of the breaker is achieved.
2. The circuit breaker for simultaneous opening and closing according to claim 1, characterized in that the connection end of the elastic adjustment device (1) is fixedly connected with the output connecting lever of the connecting pull rod (3) or the operating mechanism (4) or the output end of the circuit breaker (5) through the joint (2).
3. The circuit breaker for simultaneous opening and closing according to claim 1, characterized in that the adjusting pull rod (15) is provided with a locking nut (16) for fixing the adjusting sleeve (11) and the adjusting pull rod (15).
4. A circuit breaker with simultaneous opening and closing according to claim 1, characterized in that the elastic element (13) is a combination of one or more of a helical spring, a disc spring or other axially elastic deformation means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610796380.3A CN106373808B (en) | 2016-08-31 | 2016-08-31 | Breaker with synchronous opening and closing and elastic adjusting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610796380.3A CN106373808B (en) | 2016-08-31 | 2016-08-31 | Breaker with synchronous opening and closing and elastic adjusting device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106373808A CN106373808A (en) | 2017-02-01 |
| CN106373808B true CN106373808B (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610796380.3A Active CN106373808B (en) | 2016-08-31 | 2016-08-31 | Breaker with synchronous opening and closing and elastic adjusting device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN106373808B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204166Y (en) * | 2008-06-06 | 2009-03-04 | 常熟开关制造有限公司(原常熟开关厂） | Four-pole plastic case circuit breaker with auxiliary operation mechanism |
| CN103730288A (en) * | 2014-01-10 | 2014-04-16 | 常州太平洋电力设备(集团)有限公司 | Double-transmission contact spring device for vacuum circuit breaker |
| CN204230149U (en) * | 2014-12-03 | 2015-03-25 | 常熟开关制造有限公司(原常熟开关厂） | A kind of insulated tension pole assembly of vacuum circuit-breaker |
| CN104576165A (en) * | 2014-12-22 | 2015-04-29 | 苏州施源特电气有限公司 | Stroke-controllable circuit breaker |
-
2016
- 2016-08-31 CN CN201610796380.3A patent/CN106373808B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204166Y (en) * | 2008-06-06 | 2009-03-04 | 常熟开关制造有限公司(原常熟开关厂） | Four-pole plastic case circuit breaker with auxiliary operation mechanism |
| CN103730288A (en) * | 2014-01-10 | 2014-04-16 | 常州太平洋电力设备(集团)有限公司 | Double-transmission contact spring device for vacuum circuit breaker |
| CN204230149U (en) * | 2014-12-03 | 2015-03-25 | 常熟开关制造有限公司(原常熟开关厂） | A kind of insulated tension pole assembly of vacuum circuit-breaker |
| CN104576165A (en) * | 2014-12-22 | 2015-04-29 | 苏州施源特电气有限公司 | Stroke-controllable circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106373808A (en) | 2017-02-01 |
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