CN201438426U - Mechanical linkage type high-voltage circuit breaker - Google Patents
Mechanical linkage type high-voltage circuit breaker Download PDFInfo
- Publication number
- CN201438426U CN201438426U CN2009200898620U CN200920089862U CN201438426U CN 201438426 U CN201438426 U CN 201438426U CN 2009200898620 U CN2009200898620 U CN 2009200898620U CN 200920089862 U CN200920089862 U CN 200920089862U CN 201438426 U CN201438426 U CN 201438426U
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- China
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- power transmission
- transmission shaft
- mechanical linkage
- flange
- connecting lever
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a mechanical linkage type high-voltage circuit breaker. A three-pole break switch is arranged on a crutch box. A mechanical linkage is installed in the crutch box and is connected with a driving bar on each single-pole break switch body in a driving way. The mechanical linkage consists of drive shafts arranged corresponding to the single-pole break switches. Each drive shaft is extended along the length direction of the crutch box. Two adjacent drive shafts are connected together in a driving way through a connecting device. Crutches connected with the driving bars of the single-pole switches in a driving are respectively fixed on the drive shafts in the radial direction. Compared with the prior art, the utility model has the advantages that the number of the parts of the linkage mechanism is reduced and the drive structure is simplified; since connecting pipes are adopted for coaxial connection and are rotatably matched, the noise produced by the connecting bar of the linkage mechanism is reduced; since the number of the parts of the linkage mechanism is reduced, the field installation and adjustment are facilitated and the work efficiency is improved; and since the coaxial connection and the rotatable matching are adopted, the driving torque is increased and the mechanical driving efficiency is improved.
Description
Technical field
The utility model relates to the high-voltage switch gear field, relates to a kind of primary cut-out that is used to protect transformer specifically.
Background technology
For the primary cut-out that is used to protect transformer, require circuit breaker no matter under any circumstance, all must three utmost points move i.e. three utmost points interlock simultaneously.That existing three utmost point interlock modes have is electric-linked, fluid pressure linkage and mechanical linkage etc.Because electric-linked and fluid pressure linkage mode has certain limitation, at present, the primary cut-out of domestic production great majority adopt outer connecting lever to add the mechanical linkage mode of double connecting rod form.This syndeton comprises the interior connecting lever that corresponding each one pole shackle rod is provided with, connecting lever is coaxial respectively in each is fixed with outer connecting lever, the two ends of each outer connecting lever connect by connecting rod, outer connecting lever and connecting rod form parallelogram sturcutre, also coaxially on the outer connecting lever that connects operating mechanism in the middle of the circuit breaker are fixed with main connecting lever being positioned at.During its work, being positioned at the middle main connecting lever of isolating switch by the drive unit driving rotates, main connecting lever is by distinguishing left and right moving with the double link that its coaxial outer connecting lever promotion that is connected is hinged on outer connecting lever two ends, double link drives the outer connecting lever that is positioned at two ends respectively and rotates, each outer connecting lever drives the coaxial with it interior connecting lever that is connected and rotates, promote the corresponding separately upper and lower action of one pole shackle rod, finish circuit breaker branch, making process.But this structure that is in transmission connection has the shortcoming of following several respects:
1) the used parts of this structure that is in transmission connection are many, influenced by each parts mismachining tolerance, and are relatively more difficult when regulating at the scene;
2) because the used parts of this structure that is in transmission connection are more, and double link is elongate rod, so link gear vibration easily in motion process, and noise is very big;
3) because the spacing of connecting rod is bigger, connecting rod because of upper and lower vibration causes the permanent bending distortion, causes reliability to reduce in rapid movement, the connecting rod lost of life, even the serious consequence of connecting rod cracking also can appear;
4) in this structure, because each power transmission shaft of three-phase breaker is for being arranged in parallel the output torque that this just need be bigger concerning breaker operation mechanism;
5) in this structure, the power transmission shaft of three-phase breaker is for being arranged in parallel, and connecting link is more, causes machinery driving efficiency lower.
The utility model content
The purpose of this utility model is at above-mentioned defective, and a kind of primary cut-out is provided, and the alternate linkage of this primary cut-out has characteristics such as few simple in structure, the reliable transmission of parts, transmitting torque are big.
The technical solution of the utility model is: a kind of mechanical linkage formula primary cut-out, comprise the connecting lever box, the connecting lever box is provided with three utmost point disconnects, in the connecting lever box mechanical linkage is installed, shackle rod on this linkage and each the one pole disconnect body is in transmission connection, described linkage comprises the power transmission shaft of the coaxial setting of respectively corresponding each single-pole switch, each power transmission shaft extends along connecting lever box length direction, be in transmission connection by jockey between the adjacent power transmission shaft, radially be fixed with the connecting lever that is in transmission connection with each single-pole switch shackle rod on each power transmission shaft respectively.
The coaxial setting of described each power transmission shaft, adjacent power transmission shaft is coaxial to be in transmission connection.
Described jockey comprises tube connector, the coaxial respectively adpting flange that is fixed with in the two ends of tube connector, and described power transmission shaft is coaxial to be connected on this adpting flange.
Described power transmission shaft cooperates for endwisely slipping only to revolve with adpting flange.
Described power transmission shaft adopts spline fitted to be connected with adpting flange.
Described tube connector comprises the flange connector at its two ends, is installed with hollow connection body between the two flange connectors, offers flange hole respectively on the two flange connectors, and the flange hole of one of them flange connector is a slotted hole.
Adopt said structure, primary cut-out of the present utility model is when action, each power transmission shaft of the coaxial connection of drive mechanism rotates simultaneously, the connecting lever that is provided with by corresponding each single-pole switch body on each power transmission shaft is connected with the shackle rod of each single-pole switch body, controls each single-pole switch body and carries out branch, feed motion simultaneously.The utility model has compared with prior art reduced the amount of parts of link gear, has simplified drive mechanism; Because the employing tube connector carries out coaxial connection and is to be rotatably assorted, it has reduced the noise that the link gear connecting rod produces; Owing to reduced the amount of parts of link gear, be convenient to on-the-spot the installation and adjust, improved efficiency; Owing to adopt coaxial connection to be rotatably assorted, strengthened driving torque, improved machinery driving efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of tube connector in the utility model;
Fig. 3 is the structural representation of adpting flange in the utility model.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the direction of arrow is the power transmission shaft direction of rotation among Fig. 1.
On primary cut-out, corresponding each single-pole switch body A, B, C are respectively arranged with power transmission shaft 1-1,1-2 and 1-3, adjacent two power transmission shafts are in transmission connection by jockey is coaxial, radially be installed with connecting lever 2-1,2-2 and 2-3 on each power transmission shaft respectively, each connecting lever is in transmission connection with the shackle rod of corresponding single-pole switch body respectively.Above-mentioned jockey comprises tube connector 4, tube connector 4 comprises the flange connector 21 at two ends, be fixed with hollow connection body 22 between the two flange connectors 21, offer flange hole 23 respectively on the two flange connectors 21, wherein the flange hole 23 on the flange connector 21 of an end is a slotted hole, so that adjust angle or position during the power transmission shaft connection, guarantee the accuracy of meeting each other and connecting.Two ends at tube connector 4 are fixed with adpting flange 3 by securing member respectively, and this adpting flange 3 is connected with power transmission shaft is coaxial by spline 31, offers the connecting hole 32 that is used to install securing member that cooperates with tube connector on adpting flange 3.
When primary cut-out of the present utility model is worked, by wherein power transmission shaft rotation of drive mechanism, adpting flange 3 and the tube connector 4 of this power transmission shaft by coaxial connection drives other power transmission shafts and rotates simultaneously, and each power transmission shaft is controlled branch, the feed motion of circuit breaker by the connecting lever installed it on with the shackle rod that connecting lever is in transmission connection respectively.Adopt its parts of power transmission shaft of coaxial connection few, the transmission efficiency height, driving torque is big; Simultaneously, the rotation process of power transmission shaft can not produce vibration up and down, has not only reduced the noise in the operating process, and has prolonged the useful life of link gear, has guaranteed the dependability of circuit breaker.
Claims (6)
1. mechanical linkage formula primary cut-out, comprise the connecting lever box, the connecting lever box is provided with three utmost point disconnects, in the connecting lever box mechanical linkage is installed, shackle rod on this linkage and each the one pole disconnect body is in transmission connection, it is characterized in that, described linkage comprises the power transmission shaft of the coaxial setting of respectively corresponding each single-pole switch, each power transmission shaft extends along connecting lever box length direction, be in transmission connection by jockey between the adjacent power transmission shaft, radially be fixed with the connecting lever that is in transmission connection with each single-pole switch shackle rod on each power transmission shaft respectively.
2. mechanical linkage formula primary cut-out according to claim 1 is characterized in that, the coaxial setting of described each power transmission shaft, and adjacent power transmission shaft is coaxial to be in transmission connection.
3. mechanical linkage formula primary cut-out according to claim 2 is characterized in that described jockey comprises tube connector, the coaxial respectively adpting flange that is fixed with in the two ends of tube connector, and described power transmission shaft is coaxial to be connected on this adpting flange.
4. mechanical linkage formula primary cut-out according to claim 3 is characterized in that, described power transmission shaft cooperates for endwisely slipping only to revolve with adpting flange.
5. mechanical linkage formula primary cut-out according to claim 4 is characterized in that, described power transmission shaft adopts spline fitted to be connected with adpting flange.
6. according to each described mechanical linkage formula primary cut-out of claim 3-5, it is characterized in that, described tube connector comprises the flange connector at its two ends, be installed with hollow connection body between the two flange connectors, offer flange hole respectively on the two flange connectors, the flange hole of one of them flange connector is a slotted hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200898620U CN201438426U (en) | 2009-04-27 | 2009-04-27 | Mechanical linkage type high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200898620U CN201438426U (en) | 2009-04-27 | 2009-04-27 | Mechanical linkage type high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438426U true CN201438426U (en) | 2010-04-14 |
Family
ID=42400398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200898620U Expired - Lifetime CN201438426U (en) | 2009-04-27 | 2009-04-27 | Mechanical linkage type high-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742594A (en) * | 2017-11-08 | 2018-02-27 | 河南森源电气股份有限公司 | A kind of high-voltage board matches somebody with somebody formula breaker drive mechanism and its monopole pole |
-
2009
- 2009-04-27 CN CN2009200898620U patent/CN201438426U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742594A (en) * | 2017-11-08 | 2018-02-27 | 河南森源电气股份有限公司 | A kind of high-voltage board matches somebody with somebody formula breaker drive mechanism and its monopole pole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100414 |