CN202067688U - High-voltage circuit breaker - Google Patents
High-voltage circuit breaker Download PDFInfo
- Publication number
- CN202067688U CN202067688U CN 201120065594 CN201120065594U CN202067688U CN 202067688 U CN202067688 U CN 202067688U CN 201120065594 CN201120065594 CN 201120065594 CN 201120065594 U CN201120065594 U CN 201120065594U CN 202067688 U CN202067688 U CN 202067688U
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- CN
- China
- Prior art keywords
- rotating shaft
- auxiliary switch
- fork
- connecting rod
- transmission
- 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.)
- Expired - Lifetime
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a high-voltage circuit breaker, which comprises a support. An auxiliary switch and a crank arm for driving make and break actions of the high-voltage circuit breaker are disposed on the support, the crank arm is in transmission connection with a rotary shaft of the an auxiliary switch through a transmission connecting mechanism, the transmission connecting mechanism comprises a connecting rod, one end of the connecting rod is hinged with the crank arm, a swing rod is hinged to the other end of the connecting rod, a rotation shaft coaxial to a swing center is mounted at one end, with the swing center, of the swing rod, the rotation shaft rotates around the swing center of the swing rod along with action of the swing rod, and the rotation shaft is in transmission connection with the rotary shaft of the auxiliary switch. The high-voltage circuit breaker is simple in structure, failure rate of transmission parts and the overall transmission structure are lower, and the auxiliary switch is effectively guaranteed to correctly display make and break statuses of the circuit breaker.
Description
Technical field
The utility model relates to a kind of primary cut-out.
Background technology
Be with the auxiliary switch running part of the primary cut-out of connecting lever transmission mechanism at present, transmission link is more, its complex structure, the problem that causes auxiliary switch not change because of mechanical breakdown easily in the course of action.The auxiliary switch of some primary cut-out is directly driven by the signal cylinder fully, mainly there is the problem of two aspects in this structure, on the one hand, be subjected to the restriction of installation site, can not satisfy user's demand by the direct auxiliary switch number of contacts that drives of signal cylinder usually; On the other hand, auxiliary switch is all driven by the signal cylinder, if when primary cut-out action and situation that being failure to actuate appears in the signal cylinder, auxiliary switch just can not be changed, thus the opening and closing state of feedback circuit breaker that can't be correct.
Closing that a kind of primary cut-out uses in being the Chinese utility model patent specification of ZL200420086463.6, the patent No. disclosed, divide position indicator, when the on/off switch motion of primary cut-out, the piston rod of breaker operation mechanism drives position limiting slide block and moves up and down, in this process, the spacer pin that is slidedly assemblied in the position limiting slide block horizontally slips, be connected with connecting rod on the spacer pin, connecting rod is in transmission connection with the rotating shaft that can drive the auxiliary switch rotation, when spacer pin slides in position limiting slide block, the rotation of connecting rod driven rotary axle, thereby realize the switching motion of auxiliary switch, close thereby be implemented in, the opening and closing state that divides demonstration circuit breaker correct on the indicating device.
But the rotating shaft that the transmission mechanism in the above-mentioned utility model adopts connecting rod, slide block to drive auxiliary switch rotates, whole transmission mechanism complexity, and failure rate of machinery is higher, influences the normal use of auxiliary switch and primary cut-out.
The utility model content
The purpose of this utility model is to provide a kind of primary cut-out, with the auxiliary switch transmission mechanism complex structure that solves prior art mesohigh circuit breaker, the technical problem that failure rate of machinery is high.
For achieving the above object, the utility model adopts following technical scheme: a kind of primary cut-out, comprise bearing, bearing is provided with auxiliary switch and is used to drive the connecting lever of high-voltage circuit-breaker switching on-off action, be in transmission connection by transmission connecting mechanism between the rotating shaft of described connecting lever and auxiliary switch, transmission connecting mechanism comprises connecting rod, one end and the connecting lever of connecting rod are hinged, its other end is hinged with a fork, be equipped with the rotating shaft coaxial on one end at the oscillation center place of fork with oscillation center, around the oscillation center rotation of fork, the rotating shaft of described rotating shaft and auxiliary switch is in transmission connection along with the action of fork in rotating shaft.
Described rotating shaft is a square shaft, and the end at the oscillation center place of fork is provided with and the coaxial square hole that only revolves inserting of square shaft.
The hinged end that described connecting rod is connected with connecting lever is plugged with rotational pin, and the hinged end that is connected with fork at connecting rod is plugged with rotational pin.
Described bearing is provided with the support that is used for supporting revolving shaft and is rotatably assorted with rotating shaft.
The beneficial effects of the utility model are: between the rotating shaft of set connecting lever and auxiliary switch transmission connecting mechanism is set in primary cut-out provided by the utility model, this transmission connecting mechanism comprises connecting rod, fork and rotating shaft, when connecting lever rotates, connecting lever rotates by the rotating shaft that connecting rod, fork, rotating shaft drive auxiliary switch, thereby realizes that the auxiliary switch conversion comes the opening and closing state of correct demonstration primary cut-out.The utility model is simple in structure, and each driving member and whole drive mechanism failure rate are lower, has guaranteed that effectively auxiliary switch correctly shows the opening and closing state of circuit breaker.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the left side view of Fig. 1.
Embodiment
As Fig. 1, shown in Figure 2, a kind of primary cut-out, comprise bearing 8, be provided with base plate 5 in the side of bearing 8, the auxiliary switch 2 that is used to feed back the circuit-breaker switching on-off state is installed on base plate 5, connecting lever 7 is installed in bearing 8, between the rotating shaft of connecting lever 7 and auxiliary switch 2, be in transmission connection by transmission connecting mechanism, this transmission connecting mechanism comprises connecting rod 6, one end and the connecting lever 7 of connecting rod 6 are hinged, its other end is hinged with fork 1, be equipped with the rotating shaft 3 coaxial with oscillation center on one end at the oscillation center place of fork 1, rotating shaft 3 is rotated around the oscillation center of fork along with the fork action, is in transmission connection between the rotating shaft of rotating shaft 3 and auxiliary switch 2.
In the present embodiment, rotating shaft and rotating shaft coaxle are in transmission connection, and rotating shaft is designed to square shaft, and at this moment, the end at the oscillation center place of fork is provided with and the coaxial square hole that only revolves inserting of square shaft.
Adopt square shaft in the present embodiment, can also adopt the axle of other structures when specifically implementing, as splined shaft etc.
As shown in Figure 1, also be provided with support 4 on base plate 5, this support is used for supporting revolving shaft, and the correspondence position of rotating shaft and support is rotatably assorted.
During concrete enforcement, the power intake of the rotating shaft of auxiliary switch can also be designed to square shaft or splined shaft etc. and cooperate with fork.
As shown in Figure 1, connecting rod 6 is plugged with rotational pin with the hinged end that connecting lever 7 is connected, and the hinged end that is connected with fork 1 at connecting rod 6 is plugged with rotational pin equally.
During the utility model work, when circuit-breaker switching on-off moves, connecting lever 7 is the left-right symmetric swing in 60 ° scope, drive fork 1 left-right symmetric swing in 90 ° scope by connecting rod 6, fork 1 drives auxiliary switch 2 by square shaft and carries out 90 ° conversion, thus the opening and closing state of feedback circuit breaker.
Claims (4)
1. primary cut-out, comprise bearing, bearing is provided with auxiliary switch and is used to drive the connecting lever of high-voltage circuit-breaker switching on-off action, it is characterized in that: be in transmission connection by transmission connecting mechanism between the rotating shaft of described connecting lever and auxiliary switch, transmission connecting mechanism comprises connecting rod, one end and the connecting lever of connecting rod are hinged, its other end is hinged with a fork, be equipped with the rotating shaft coaxial on one end at the oscillation center place of fork with oscillation center, around the oscillation center rotation of fork, the rotating shaft of described rotating shaft and auxiliary switch is in transmission connection along with the action of fork in rotating shaft.
2. primary cut-out according to claim 1 is characterized in that: described rotating shaft is a square shaft, and the end at the oscillation center place of fork is provided with and the coaxial square hole that only revolves inserting of square shaft.
3. primary cut-out according to claim 1 and 2 is characterized in that: the hinged end that described connecting rod is connected with connecting lever is plugged with rotational pin, and the hinged end that is connected with fork at connecting rod is plugged with rotational pin.
4. primary cut-out according to claim 1 and 2 is characterized in that: described bearing is provided with the support that is used for supporting revolving shaft and is rotatably assorted with rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120065594 CN202067688U (en) | 2011-03-14 | 2011-03-14 | High-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120065594 CN202067688U (en) | 2011-03-14 | 2011-03-14 | High-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202067688U true CN202067688U (en) | 2011-12-07 |
Family
ID=45061545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120065594 Expired - Lifetime CN202067688U (en) | 2011-03-14 | 2011-03-14 | High-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202067688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560033A (en) * | 2013-10-31 | 2014-02-05 | 北京双杰电气股份有限公司 | Linked switch |
-
2011
- 2011-03-14 CN CN 201120065594 patent/CN202067688U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560033A (en) * | 2013-10-31 | 2014-02-05 | 北京双杰电气股份有限公司 | Linked switch |
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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 |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |