CN114613639B - Transmission system of switch - Google Patents
Transmission system of switch Download PDFInfo
- Publication number
- CN114613639B CN114613639B CN202210297049.2A CN202210297049A CN114613639B CN 114613639 B CN114613639 B CN 114613639B CN 202210297049 A CN202210297049 A CN 202210297049A CN 114613639 B CN114613639 B CN 114613639B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- fixed shaft
- slideway
- contact
- constraint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/50—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
Abstract
The invention relates to the field of high-voltage switches, in particular to a transmission system of a switch, which comprises a first transmission unit, a second transmission unit, a third transmission unit, a first slideway constraint and a second slideway constraint, wherein the second transmission unit comprises a second fixed shaft, a third connecting rod, a fourth connecting rod and a fifth connecting rod, the second fixed shaft is fixedly arranged, the first connecting rod drives the third connecting rod to rotate, and the fifth connecting rod drives a movable rated current contact to move along the slideway under the action of the first slideway constraint; the third transmission unit comprises a third fixed shaft and an eighth connecting rod, the fourth connecting rod is rotationally connected with the eighth connecting rod, and the eighth connecting rod drives the movable arc contact to move along the slideway under the constraint action of the second slideway. The invention solves the problem of optimizing the moving quality and speed of the moving rated current contact and the moving arc contact, designs a mechanical transmission structure, and moves the arc moving contact, the rated current flowing contact and other auxiliary systems according to different set movement strokes and speeds respectively so as to meet the requirements.
Description
Technical Field
The invention relates to the field of high-voltage switches, in particular to a transmission system of a switch.
Background
The high capacity switchgear is provided with an arc contact system and a rated current contact system, respectively. The arc contact system has special materials and structures which meet the requirements of arc ablation and arc extinction. The rated current moving contact system has special materials and structures which meet the requirement of long-term through flow.
At present, most of switch equipment has no relative motion between a movable rated current contact and a movable arc contact, and the current is met by lengthening the movable arc contact or the movable rated current contact, wherein in the closing process, the electric arc movable contact and the electric arc fixed contact are conducted firstly, and then the two kinds of the movable rated current contact and the fixed rated current contact are conducted. In the switching-off process, the electric arc moving contact and the electric arc static contact are separated firstly, and the rated current flowing contact and the rated current static contact are separated later.
The defects of the prior art are that the movable rated current contact and the movable arc contact move together, and the travel and the speed of the movable rated current contact and the movable arc contact are the same. For high-capacity switch equipment, the mass of a movable rated current contact is much larger than that of a movable arc contact, and the required movement speed of the movable rated current contact is far smaller than that of the movable arc contact.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a transmission system of a switch, which solves the problems of optimization of moving quality and speed of a movable rated current contact and a movable arc contact, designs a mechanical transmission structure, and moves the movable arc contact, the rated current contact and other auxiliary systems according to different set movement strokes and speeds respectively so as to meet the requirements.
The invention is realized by the following technical scheme:
the transmission system of the switch comprises a first transmission unit, a second transmission unit, a third transmission unit, a first slideway constraint and a second slideway constraint, wherein the first transmission unit comprises a first fixed shaft and a first connecting rod, the first fixed shaft is fixedly arranged on a bracket, the first fixed shaft is a power input shaft, and the first connecting rod is fixedly connected with the first fixed shaft; the second transmission unit comprises a second fixed shaft, a third connecting rod, a fourth connecting rod and a fifth connecting rod, wherein the second fixed shaft is fixedly arranged on the support, the lengths of the fourth connecting rod and the fifth connecting rod are different, the third connecting rod, the fourth connecting rod and the fifth connecting rod are fixedly connected with the second fixed shaft, the first connecting rod drives the third connecting rod to rotate around the center of the second fixed shaft, one end of the fifth connecting rod, which is far away from the second fixed shaft, is connected with a movable rated current contact, the movable rated current contact is slidably arranged in a first slideway constraint, and the fifth connecting rod drives the movable rated current contact to move along the first slideway constraint under the action of the first slideway constraint; the third transmission unit comprises a third fixed shaft and an eighth connecting rod, the third fixed shaft is fixedly arranged on the support, the eighth connecting rod is rotationally connected with the third fixed shaft, the fourth connecting rod is rotationally connected with the eighth connecting rod, one end, far away from the third fixed shaft, of the eighth connecting rod is connected with the moving arc contact, the moving arc contact is slidably arranged in the second slideway constraint, and the eighth connecting rod drives the moving arc contact to move along the second slideway constraint under the action of the second slideway constraint.
Preferably, a second connecting rod in rotary connection is arranged between the first connecting rod and the third connecting rod.
Preferably, a sixth connecting rod in rotary connection is arranged between the fifth connecting rod and the movable rated current contact.
Preferably, a seventh connecting rod in rotary connection is arranged between the fourth connecting rod and the eighth connecting rod.
Preferably, the connection point of the seventh connecting rod and the eighth connecting rod is positioned in the middle of the eighth connecting rod.
Preferably, the rotation angle of the eighth link is less than or equal to 90 °.
Preferably, one end of the eighth connecting rod far away from the third fixed shaft is connected with the movable arc contact.
Preferably, a ninth connecting rod in rotary connection is arranged between one end of the eighth connecting rod far away from the third fixed shaft and the movable arc contact.
Preferably, the first slide way constraint and the second slide way constraint are both horizontal constraints.
Compared with the prior art, the invention has the following beneficial effects:
the transmission system of the switch is characterized in that power input from a first fixed shaft is transmitted to a third connecting rod through a first connecting rod, and the third connecting rod, a fourth connecting rod and a fifth connecting rod form a common movement unit through a second fixed shaft, and the third connecting rod can synchronously drive the fourth connecting rod and the fifth connecting rod to rotate around the second fixed shaft, so that a fifth connecting rod drives a movable rated current contact to move along a slideway under the constraint action of a first slideway; meanwhile, the fourth connecting rod drives the eighth connecting rod to rotate around the third fixed shaft, and the eighth connecting rod drives the movable arc contact to move along the slideway under the constraint of the second slideway, so that the movement of the movable rated current contact and the movable arc contact is realized.
The length of the fourth connecting rod is different from that of the fifth connecting rod, so that the horizontal linear speeds of the movable arc contact connected with the fourth connecting rod and the movable rated current contact connected with the fifth connecting rod are different, and the strokes and speeds of the movable rated current contact and the movable arc contact can be adjusted by changing the lengths of the connecting rods and the angles of the connecting rods, so that the movable arc contact and the movable arc contact can be adapted to different circuit breakers.
Furthermore, the seventh connecting rod realizes the connection of the fourth connecting rod and the eighth connecting rod, and the rotation angle of the eighth connecting rod can be limited under the cooperation of the seventh connecting rod and the fourth connecting rod, so that the eighth connecting rod can only rotate around the third fixed shaft by a certain angle.
Drawings
FIG. 1 is a schematic view of a first movement position of a drive system of a switch according to the present invention;
fig. 2 is a schematic diagram of a second movement position of the transmission system of a switch according to the present invention.
In the figure, 1, a first connecting rod; 2. a second link; 3. a third link; 4. a fourth link; 5. a fifth link; 6. a sixth link; 7. a seventh link; 8. an eighth link; 9. a ninth link; 10. a moving arc contact; 11. a movable rated current contact; 12. fixing a rated current contact; 13. fixing the arc contact; a. a first fixed shaft; b. a second fixed shaft; c. and thirdly, fixing the shaft.
Detailed Description
The invention will now be described in further detail with reference to specific examples, which are intended to illustrate, but not to limit, the invention.
The invention discloses a transmission system of a switch, referring to fig. 1 and 2, comprising a first transmission unit, a second transmission unit, a third transmission unit, a first slideway constraint and a second slideway constraint, wherein the transmission system drives a moving arc contact 10 to be close to or far from a fixed arc contact 13, and simultaneously drives a moving rated current contact 11 to be close to or far from a fixed rated current contact 12.
The first transmission unit comprises a first fixed shaft a and a first connecting rod 1, wherein the first fixed shaft a is fixedly arranged on the bracket, the first fixed shaft a is a power input shaft, and the first connecting rod 1 is fixedly connected with the first fixed shaft a.
The second transmission unit comprises a second fixed shaft b, a third connecting rod 3, a fourth connecting rod 4 and a fifth connecting rod 5, the second fixed shaft b is fixedly arranged on the support, the third connecting rod 3, the fourth connecting rod 4 and the fifth connecting rod 5 are fixedly connected with the second fixed shaft b, a second connecting rod 2 in rotary connection is arranged between the first connecting rod 1 and the third connecting rod 3, a sixth connecting rod 6 in rotary connection is arranged between the fifth connecting rod 5 and the movable rated current contact 11, the fifth connecting rod 5 drives the sixth connecting rod 6 to rotate, and the sixth connecting rod 6 drives the movable rated current contact 11 to move along the first slideway in a constraint mode under the constraint of the first slideway.
The third transmission unit comprises a third fixed shaft c and an eighth connecting rod 8, the third fixed shaft c is fixedly arranged on the support, the eighth connecting rod 8 is rotationally connected with the third fixed shaft c, a seventh connecting rod 7 which is rotationally connected is arranged between the fourth connecting rod 4 and the eighth connecting rod 8, the connecting point of the seventh connecting rod 7 and the eighth connecting rod 8 is not positioned at the end part of the eighth connecting rod 8, one end of the eighth connecting rod 8 far away from the third fixed shaft c is connected with a movable arc contact 10, and a ninth connecting rod 9 is arranged between one end of the eighth connecting rod 8 far away from the third fixed shaft c and the movable arc contact 10. When the movable arc contact device works, the fourth connecting rod 4 drives the eighth connecting rod 8 to rotate around the third fixed axis c, the eighth connecting rod 8 drives the ninth connecting rod 9 to rotate, and the ninth connecting rod 9 drives the movable arc contact 10 to move along the second slide way in a constraint mode under the constraint action of the second slide way.
The fourth link 4 and the fifth link 5 have different lengths, so that the horizontal linear speeds of the seventh link 7 and the sixth link 6 connected to the fourth link 4 and the fifth link are different, and thus the synchronous differential speed movement of the movable rated current contact 11 and the movable arcing contact 10 can be realized.
In this embodiment, the length of the fourth link 4 is greater than that of the fifth link 5, the connection point of the seventh link 7 and the eighth link 8 is located in the middle of the eighth link 8, and meanwhile, the first slide constraint and the second slide constraint are both horizontal constraints, and in the process of converting the transmission system from the first motion position to the second motion, the power principle is as follows:
the first fixed shaft a and the first transmission unit formed by the first connecting rod 1, the second fixed shaft b, the third connecting rod 3, the fourth connecting rod 4 and the second transmission unit formed by the fifth connecting rod 5 form a four-connecting-rod movement mechanism together on a space plane.
The first fixed shaft a rotates by a certain angle around the shaft center of the first fixed shaft a under the drive of external force, so that a second transmission unit consisting of a second fixed shaft b, a third connecting rod 3, a fourth connecting rod 4 and a fifth connecting rod 5 is driven to rotate by a certain angle around the shaft center of the second fixed shaft b. Further, since the length of the fourth link 4 is longer than that of the fifth link 5, the horizontal linear speeds of the seventh link 7 and the sixth link 6 connected thereto are different from each other.
The fifth connecting rod 5, the sixth connecting rod 6, the movable rated current contact 11 and the first slideway are constrained to form a crank slide block mechanism together, so that the movable rated current contact 11 is driven to move.
The motion system of the movable arc contact 10 is a complex multi-stage transmission, power is transmitted to the fourth connecting rod 4 through the first transmission unit, the swing of the fourth connecting rod 4 drives the seventh connecting rod 7 to move, one end of the eighth connecting rod 8 is rotationally connected with the third fixed shaft c due to the fact that the seventh connecting rod 7 is connected to the middle of the eighth connecting rod 8, but only a certain angle can be rotated around the center of the third fixed shaft c, one end of the eighth connecting rod 8 far away from the third fixed shaft c is connected with the ninth connecting rod 9, and the ninth connecting rod 9 drives the movable arc contact 10 to move in the horizontal direction in the second sliding constraint.
When the moving rated current contact 11 and the moving arcing contact 10 move from the first position (shown in fig. 1) to the second position (shown in fig. 2), the moving rated current contact 11 and the fixed rated current contact 12 are separated at a timing earlier than the moving arcing contact 10 and the fixed arcing contact 13.
When the movable rated current contact 11 and the movable arcing contact 10 move from the second position to the first position, the contact time of the movable arcing contact 10 and the fixed arcing contact 13 is earlier than the contact time of the movable rated current contact 11 and the fixed rated current contact 12.
Claims (3)
1. The transmission system of the switch is characterized by comprising a first transmission unit, a second transmission unit, a third transmission unit, a first slideway constraint and a second slideway constraint, wherein the first transmission unit comprises a first fixed shaft (a) and a first connecting rod (1), the first fixed shaft (a) is fixedly arranged on a bracket, the first fixed shaft (a) is a power input shaft, and the first connecting rod (1) is fixedly connected with the first fixed shaft (a); the second transmission unit comprises a second fixed shaft (b), a third connecting rod (3), a fourth connecting rod (4) and a fifth connecting rod (5), wherein the second fixed shaft (b) is fixedly arranged on the support, the lengths of the fourth connecting rod (4) and the fifth connecting rod (5) are different, the third connecting rod (3), the fourth connecting rod (4) and the fifth connecting rod (5) are fixedly connected with the second fixed shaft (b), the first connecting rod (1) drives the third connecting rod (3) to rotate around the center of the second fixed shaft (b), one end, far away from the second fixed shaft (b), of the fifth connecting rod (5) is connected with a movable rated current contact (11), the movable rated current contact (11) is slidably arranged in the first slideway constraint, and the fifth connecting rod (5) drives the movable rated current contact (11) to move along the first slideway constraint under the action of the first slideway constraint; the third transmission unit comprises a third fixed shaft (c) and an eighth connecting rod (8), the third fixed shaft (c) is fixedly arranged on the support, the eighth connecting rod (8) is rotationally connected with the third fixed shaft (c), the fourth connecting rod (4) is rotationally connected with the eighth connecting rod (8), one end, far away from the third fixed shaft (c), of the eighth connecting rod (8) is connected with a moving arc contact (10), the moving arc contact (10) is slidably arranged in a second slideway constraint, and the eighth connecting rod (8) drives the moving arc contact (10) to move along the second slideway constraint under the action of the second slideway constraint;
a second connecting rod (2) which is rotationally connected is arranged between the first connecting rod (1) and the third connecting rod (3);
a sixth connecting rod (6) in rotary connection is arranged between the fifth connecting rod (5) and the movable rated current contact (11);
a seventh connecting rod (7) which is rotationally connected is arranged between the fourth connecting rod (4) and the eighth connecting rod (8);
the connecting point of the seventh connecting rod (7) and the eighth connecting rod (8) is positioned in the middle of the eighth connecting rod (8);
one end of the eighth connecting rod (8) far away from the third fixed shaft (c) is connected with the movable arc contact (10);
a ninth connecting rod (9) in rotary connection is arranged between one end, far away from the third fixed shaft (c), of the eighth connecting rod (8) and the moving arc contact (10).
2. A transmission system of a switch according to claim 1, characterized in that the rotation angle of the eighth link (8) is less than or equal to 90 °.
3. The transmission system of a switch of claim 1, wherein the first and second slide constraints are both horizontal constraints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210297049.2A CN114613639B (en) | 2022-03-24 | 2022-03-24 | Transmission system of switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210297049.2A CN114613639B (en) | 2022-03-24 | 2022-03-24 | Transmission system of switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114613639A CN114613639A (en) | 2022-06-10 |
| CN114613639B true CN114613639B (en) | 2023-08-15 |
Family
ID=81864312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210297049.2A Active CN114613639B (en) | 2022-03-24 | 2022-03-24 | Transmission system of switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114613639B (en) |
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| DE3440857A1 (en) * | 1984-11-08 | 1986-05-15 | Siemens AG, 1000 Berlin und 8000 München | Compressed-gas circuit breaker |
| EP0822565A3 (en) * | 1996-08-01 | 1999-03-17 | AEG Energietechnik GmbH | Gas-blast switch |
| EP0913845A1 (en) * | 1997-10-30 | 1999-05-06 | Gec Alsthom T & D Sa | Generator circuit breaker with a single mechanical control |
| CN1310460A (en) * | 2000-02-11 | 2001-08-29 | Abb高压技术股份公司 | Power switch |
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| EP1983538A1 (en) * | 2007-04-17 | 2008-10-22 | Areva T&D Sa | Circuit breaker with rupture chamber having double movement and inverted structure |
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| CN102881477A (en) * | 2012-09-24 | 2013-01-16 | 中国西电电气股份有限公司 | Double glide transmission mechanism |
| WO2013087669A1 (en) * | 2011-12-14 | 2013-06-20 | Alstom Technology Ltd | Mobile conducting unit for a breaker, including a spring for accelerating the separation of arc contacts |
| CN104871280A (en) * | 2012-12-20 | 2015-08-26 | Abb技术有限公司 | Electrical switching device with a triple motion contact arrangement |
| CN104981887A (en) * | 2013-01-24 | 2015-10-14 | 阿尔斯通技术有限公司 | Electrical apparatus with dual movement of contacts comprising a return device with two levers |
| CN205582750U (en) * | 2016-02-15 | 2016-09-14 | 天津林立感应加热电炉制造有限公司 | Trade stove switch |
| CN112614730A (en) * | 2020-12-09 | 2021-04-06 | 平高集团有限公司 | Double-acting arc extinguish chamber transmission structure |
| WO2021105259A1 (en) * | 2019-11-29 | 2021-06-03 | General Electric Technology Gmbh | Circuit breaker with simplified non-linear double motion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2906929B1 (en) * | 2006-10-09 | 2009-01-30 | Areva T & D Sa | ACTUATION BY CONTACTS OF A DOUBLE MOVEMENT CUT CHAMBER BY AN INSULATING TUBE |
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2022
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Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54169746U (en) * | 1978-05-22 | 1979-11-30 | ||
| DE3440857A1 (en) * | 1984-11-08 | 1986-05-15 | Siemens AG, 1000 Berlin und 8000 München | Compressed-gas circuit breaker |
| EP0822565A3 (en) * | 1996-08-01 | 1999-03-17 | AEG Energietechnik GmbH | Gas-blast switch |
| EP0913845A1 (en) * | 1997-10-30 | 1999-05-06 | Gec Alsthom T & D Sa | Generator circuit breaker with a single mechanical control |
| US6013888A (en) * | 1997-10-30 | 2000-01-11 | Gec Alsthom T & D Sa | Generator circuit breaker having a single mechanical control mechanism |
| CN1310460A (en) * | 2000-02-11 | 2001-08-29 | Abb高压技术股份公司 | Power switch |
| JP2003217408A (en) * | 2002-01-21 | 2003-07-31 | Mitsubishi Electric Corp | Breaker |
| CN101097808A (en) * | 2006-06-23 | 2008-01-02 | 阿雷瓦T&D股份公司 | Cylindrical slot guide activation of an alternator load-break switch |
| EP1983538A1 (en) * | 2007-04-17 | 2008-10-22 | Areva T&D Sa | Circuit breaker with rupture chamber having double movement and inverted structure |
| CN101587783A (en) * | 2009-06-24 | 2009-11-25 | 河南平高电气股份有限公司 | Double-action type linkage mechanism for extra-high voltage circuit breaker |
| WO2013087669A1 (en) * | 2011-12-14 | 2013-06-20 | Alstom Technology Ltd | Mobile conducting unit for a breaker, including a spring for accelerating the separation of arc contacts |
| CN102881477A (en) * | 2012-09-24 | 2013-01-16 | 中国西电电气股份有限公司 | Double glide transmission mechanism |
| CN104871280A (en) * | 2012-12-20 | 2015-08-26 | Abb技术有限公司 | Electrical switching device with a triple motion contact arrangement |
| CN104981887A (en) * | 2013-01-24 | 2015-10-14 | 阿尔斯通技术有限公司 | Electrical apparatus with dual movement of contacts comprising a return device with two levers |
| CN205582750U (en) * | 2016-02-15 | 2016-09-14 | 天津林立感应加热电炉制造有限公司 | Trade stove switch |
| WO2021105259A1 (en) * | 2019-11-29 | 2021-06-03 | General Electric Technology Gmbh | Circuit breaker with simplified non-linear double motion |
| CN112614730A (en) * | 2020-12-09 | 2021-04-06 | 平高集团有限公司 | Double-acting arc extinguish chamber transmission structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114613639A (en) | 2022-06-10 |
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