CN104362028A - Two-arm pull rod transmission mechanism for isolating switches - Google Patents
Two-arm pull rod transmission mechanism for isolating switches Download PDFInfo
- Publication number
- CN104362028A CN104362028A CN201410688640.6A CN201410688640A CN104362028A CN 104362028 A CN104362028 A CN 104362028A CN 201410688640 A CN201410688640 A CN 201410688640A CN 104362028 A CN104362028 A CN 104362028A
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- CN
- China
- Prior art keywords
- pole
- arm
- arms
- transmission arm
- pull rod
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a two-arm pull rod transmission mechanism for isolating switches. Double-arm plates are fixed to insulator bases of the three-pole isolating switches (A, B and C) respectively and can rotate together with the insulator bases. Inter-pole pull rods are arranged between every two adjacent double-arm plates on the same side. The two ends of each inter-pole pull rod are connected with the ends of the corresponding double-arm plates through pin shafts. A three-pole linkage closing operation transmission arm and an opening operation transmission arm which are composed of the inter-pole pull rods and the double-arm plates are arranged on the two sides of the three-pole isolating switches respectively. The two-arm pull rod transmission mechanism has the advantages that the structure is simple, adjustment is convenient, performance is reliable, the closing operation and the opening operation can be conducted through the two transmission mechanisms respectively, the force borne by the inter-pole pull rods is small, the two-arm pull rod transmission mechanism is not prone to deformation, the positions of the inter-pole pull rods are adjusted through pull rod adjustment mechanisms, it is ensured that no idle stroke happens to the main transmission of the three-pole isolating switches, and the synchronous error caused while three-pole linkage contacts of the isolating switches make contact is small.
Description
Technical field
The present invention relates to a kind of interpolar link transmission structure, particularly isolating switch both arms drag link transmission mechanism of high-voltage switch gear, be applicable to horizontally openable formula outdoor high-voltage isolating switch three pole associating transmission operation.
Background technology
Isolating switch is three pole associating transmission operation normally, the structure realizing three pole combined operations is: be connected with each other by interpolar connecting rod by three single-pole isolators, be separately fixed on the transmission arm of two adjacent single-stage isolated switches by the two ends of interpolar connecting rod, actuating single-stage isolated switch drives other two single-stage isolated switches, forms the entirety of a tri-level sync action.The deficiency that this structure exists is: the separating brake of isolating switch is all completed by the single bar link of interpolar with closing a floodgate.Under "on" position, interpolar connecting rod is in tension, and the side of axis hole is close to by the pivot pin of each interpolar connecting rod, and keeps "on" position; When carrying out sub-switching operation, main transmission arm promotes interpolar connecting rod and moves round about, and interpolar connecting rod promotes other the two poles of the earth separating brake simultaneously.Due to the error that processing aspect exists, certain gap is there is between the axis hole of each connecting portion and pivot pin, the pivot pin of each connecting portion needs to run to opposite side from the side of axis hole could promote isolating switch action, causes main transmission arm to run certain idle running.Simultaneously, certain flexural deformation can be there is in interpolar connecting rod in the process promoting each one pole transmission arm, cause isolating switch three pole link point, close a floodgate time, each pole driving angle error is very large, when causing the interlock of isolating switch three pole to close a floodgate, the error of the not same period poor (tri-level sync) of contact increases, and is difficult to be adjusted to Complete Synchronization.The anode-cathode distance of isolating switch is larger, and this phenomenon is more serious.
Summary of the invention
The object of the present invention is to provide that a kind of structure is simple, efficiency of transmission is high, and can ensure three-pole isolator synchronization action, contact contemporaneous errors reaches minimum isolating switch both arms drag link transmission mechanism.
Technical solution of the present invention is: a kind of isolating switch both arms drag link transmission mechanism, comprise three-pole isolator, interpolar pull bar, it is characterized in that at three-pole isolator A, B, the insulator foot of C is fixed with both arms plate respectively, both arms plate can rotate with insulator foot, interpolar pull bar is provided with between the both arms plate that homonymy is adjacent, interpolar pull bar two ends and both arms plate end pinned connection, closing operation transmission arm and the sub-switching operation transmission arm of the three poles interlocks connected and composed by interpolar pull bar and both arms plate is formed respectively in three-pole isolator both sides, sub-switching operation transmission arm and closing operation transmission arm independently complete the separating brake to isolating switch, shutting-brake control.
Described closing operation transmission arm and sub-switching operation transmission arm, the interpolar pull bar of its end is provided with pulling rod adjusting mechanism.
Described pulling rod adjusting mechanism forms by being connected adjusting bolt with interpolar pull rod screw, and the end of adjusting bolt is against on bearing pin.
The present invention is by arranging closing operation transmission arm and sub-switching operation transmission arm respectively in the both sides of three-pole isolator, corresponding separating brake and the combined floodgate controlling isolating switch, separating brake and closing operation are not interfere with each other, and the pulling force that interpolar pull bar bears is little, not easily deform, ensure the synchronism of transmission.Simultaneously by pulling rod adjusting mechanism, the gap regulating the link between interpolar pull bar and both arms plate to exist, makes to be formed between the axis hole of link and pivot pin to closely cooperate, the error of the contact same period reducing further to link isolating switch three pole.
Feature of the present invention is: structure is simple, easy to adjust, dependable performance, and adopt two cover operating mechanisms to control dividing, closing a floodgate respectively, interpolar pull bar only bears pulling force and do not need to bear the effect of thrust, and interpolar pull bar is stressed little, not easily deforms.Pulling rod adjusting mechanism simultaneously by arranging adjusts interpolar draw rod positions, convert point, closing operation time, there is not gap between the pivot pin of link and axis hole to move, the main transmission of three-pole isolator does not walk idle running, therefore, the error of contact same period of isolating switch three pole interlock is little.
Accompanying drawing explanation
Fig. 1 is the structural representation of gate-dividing state of the present invention;
Fig. 2 is the structural representation of "on" position of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, isolating switch both arms drag link transmission mechanism is on the insulator foot 7 of three-pole isolator A, B, C, be fixed with the both arms plate 1 extended outside the base respectively, both arms plate can be plate always, and also can be symmetrically arranged two short slabs respectively, both arms plate can rotate with insulator foot.Interpolar pull bar 2 is provided with between the adjacent both arms plate of three-pole isolator the same side, the junction of interpolar tie rod end and both arms plate end has axis hole, interpolar pull bar is connected with both arms plate through axis hole by pivot pin 3, by the connection of interpolar pull bar and both arms plate, form closing operation transmission arm 4 and the sub-switching operation transmission arm 5 of interlock in three-pole isolator both sides.The interpolar pull bar of closing operation transmission arm and sub-switching operation transmission arm end is provided with pulling rod adjusting mechanism, the end of the bolt 6 of pulling rod adjusting mechanism is against on pivot pin 3, by adjusting bolt, the axis hole on pivot pin and interpolar pull bar is closely cooperated, there is not gap between the two.
When carrying out closing operation, actuating force is applied on closing operation transmission arm 4, and closing operation transmission arm Integral synchronous is moved to the left, and completes closing operation, and Fig. 2 is combined floodgate completion status.When carrying out sub-switching operation, actuating force is applied on sub-switching operation transmission arm 5, and sub-switching operation transmission arm Integral synchronous moves right, and completes sub-switching operation, and Fig. 1 is separating brake completion status.
Claims (3)
1. an isolating switch both arms drag link transmission mechanism, comprise three-pole isolator, interpolar pull bar, it is characterized in that at three-pole isolator A, B, the insulator foot of C is fixed with both arms plate respectively, both arms plate can rotate with insulator foot, interpolar pull bar is provided with between the both arms plate that homonymy is adjacent, interpolar pull bar two ends and both arms plate end pinned connection, closing operation transmission arm and the sub-switching operation transmission arm of the three poles interlocks connected and composed by interpolar pull bar and both arms plate is formed respectively in three-pole isolator both sides, sub-switching operation transmission arm and closing operation transmission arm independently complete the separating brake to isolating switch, shutting-brake control.
2. isolating switch both arms drag link transmission mechanism according to claim 1, is characterized in that described closing operation transmission arm and sub-switching operation transmission arm, and the interpolar pull bar of its end is provided with pulling rod adjusting mechanism.
3. isolating switch both arms drag link transmission mechanism according to claim 1, it is characterized in that described pulling rod adjusting mechanism forms by being connected adjusting bolt with interpolar pull rod screw, the end of adjusting bolt is against on bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688640.6A CN104362028A (en) | 2014-11-26 | 2014-11-26 | Two-arm pull rod transmission mechanism for isolating switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688640.6A CN104362028A (en) | 2014-11-26 | 2014-11-26 | Two-arm pull rod transmission mechanism for isolating switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104362028A true CN104362028A (en) | 2015-02-18 |
Family
ID=52529283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410688640.6A Pending CN104362028A (en) | 2014-11-26 | 2014-11-26 | Two-arm pull rod transmission mechanism for isolating switches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104362028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446700A (en) * | 2021-12-22 | 2022-05-06 | 平高集团有限公司 | Double-break isolating switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4166938A (en) * | 1977-09-28 | 1979-09-04 | Peek Henry L | Drive for high speed disconnect switch |
| CN201725700U (en) * | 2010-07-09 | 2011-01-26 | 平高集团有限公司 | High-voltage circuit-breaker |
| CN103050300A (en) * | 2012-12-26 | 2013-04-17 | 北京双杰电气股份有限公司 | Solid insulation switch drive system |
| CN203225199U (en) * | 2013-04-17 | 2013-10-02 | 中国西电电气股份有限公司 | Transmission insulating connecting rod mechanism used for disconnector equipment |
| CN204189690U (en) * | 2014-11-26 | 2015-03-04 | 大连高压开关电器有限公司 | Isolating switch both arms drag link transmission mechanism |
-
2014
- 2014-11-26 CN CN201410688640.6A patent/CN104362028A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4166938A (en) * | 1977-09-28 | 1979-09-04 | Peek Henry L | Drive for high speed disconnect switch |
| CN201725700U (en) * | 2010-07-09 | 2011-01-26 | 平高集团有限公司 | High-voltage circuit-breaker |
| CN103050300A (en) * | 2012-12-26 | 2013-04-17 | 北京双杰电气股份有限公司 | Solid insulation switch drive system |
| CN203225199U (en) * | 2013-04-17 | 2013-10-02 | 中国西电电气股份有限公司 | Transmission insulating connecting rod mechanism used for disconnector equipment |
| CN204189690U (en) * | 2014-11-26 | 2015-03-04 | 大连高压开关电器有限公司 | Isolating switch both arms drag link transmission mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446700A (en) * | 2021-12-22 | 2022-05-06 | 平高集团有限公司 | Double-break isolating switch |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |