CN100557744C - A kind of mechanical interlocks of automatic change-over - Google Patents
A kind of mechanical interlocks of automatic change-over Download PDFInfo
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- CN100557744C CN100557744C CNB2007100702220A CN200710070222A CN100557744C CN 100557744 C CN100557744 C CN 100557744C CN B2007100702220 A CNB2007100702220 A CN B2007100702220A CN 200710070222 A CN200710070222 A CN 200710070222A CN 100557744 C CN100557744 C CN 100557744C
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Abstract
The invention discloses a kind of mechanical interlocks of automatic change-over, comprise two rotating shafts and two drive units, described each drive unit drives corresponding rotating shaft by a connecting rod respectively, it is characterized in that also being provided with in the described every rotating shaft cantilever, described each cantilever is provided with a retainer and a stop surface, and relative configuration of stop surface on the retainer on one of them cantilever and another cantilever.The present invention adopts the single mechanism structure to finish mechanical interlocking, thereby simple in structure, security reliability, and continuity is good.And, because it is spacing to adopt the conflict of retainer and stop surface, need not release, make to control and reset also to become more simple.
Description
Technical field
The present invention relates to low-voltage electrical apparatus, relate in particular to automatic change-over, specifically a kind of mechanical interlocks at automatic change-over.
Background technology
In distribution system, the two-way power-supply system can only be selected one and be supplied with same electrical work power supply, otherwise very big circulation will occur, and controller switching equipment and circuit are caused great infringement.Usually, adopt the automatic change-over of band mechanical interlocking to finish above-mentioned switching.Specifically, driving two groups of moving contact systems corresponding to the two-way power-supply system respectively by two rotating shafts of automatic change-over rotates to produce and closes a floodgate or the separating brake action, thereby carrying out power supply switches, prerequisite can not drive two groups of moving contact system closures when being these two rotating shafts rotations simultaneously, perhaps drive one group of moving contact system when closed when rotating shaft wherein, another root rotating shaft just must not drive another and organize moving contact system closure.That is to say that two rotating shafts can not be rotated simultaneously, after perhaps a rotating shaft forwarded the position to, another root rotating shaft just must not be rotated.
The mechanical interlocks of existing automatic change-over adopts electromagnetic trip mechanism and mechanical interlocked mechanism interlock mode to realize interlocking and release usually, thereby structure is comparatively complicated, thereby and because the more reliability and stability that cause of link of interlock are not high.
Summary of the invention
What the present invention will solve is the problems referred to above that prior art exists, and aims to provide a kind of novelty, not only easy but also reliable mechanical interlocks, thereby can guarantee fail safe, reliability and the continuity of electrical equipment in electric power system.
The technical scheme that addresses the above problem employing is: a kind of mechanical interlocks of automatic change-over, comprise two rotating shafts and two drive units, described each drive unit drives corresponding rotating shaft by a connecting rod respectively, it is characterized in that also being provided with in the described every rotating shaft cantilever, described each cantilever is provided with a retainer and a stop surface, and relative configuration of stop surface on the retainer on one of them cantilever and another cantilever.
Operation principle of the present invention is: when two groups of moving contact systems of automatic change-over all are in gate-dividing state, after drive unit acts on wherein connecting rod in the rotating shaft, rotating shaft just rotates, when the one group of moving contact system that turns to automatic change-over is closed, the stop surface of the cantilever in the retainer of the cantilever in this root rotating shaft and another root rotating shaft is conflicted, thereby has effectively stoped the rotation of another root rotating shaft.
In like manner, when two groups of moving contact systems of automatic change-over all are in gate-dividing state, when two drive units act on two connecting rods in the rotating shaft simultaneously, diaxon takes place to rotate simultaneously, when rotating shaft turn to wherein the stop surface of retainer in the rotating shaft and the cantilever in another root rotating shaft inconsistent after, rotating shaft just can't be rotated further again.
From last surface analysis as can be known, the present invention adopts the single mechanism structure to finish mechanical interlocking, thereby simple in structure, security reliability, and continuity is good.And, because it is spacing to adopt the conflict of retainer and stop surface, need not release, make to control and reset also to become more simple.
According to the difference of the combined floodgate rotation direction of two groups of moving contact systems of automatic change-over, the setting of described cantilever and the retainer on it also has multiple mode.For the automatic change-over that the combined floodgate rotation direction of two groups of moving contact systems is provided with in opposite directions, described two cantilevers also are provided with in opposite directions, and are axially staggering, and the retainer on described each cantilever is arranged on the side of another cantilever.This structure is simple relatively, and can control the stop angle well.Described stop surface can be the surface of plane, cambered surface or other form, preferred inclined-plane.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is that mechanical interlocks of the present invention uses the axonometric drawing on automatic transfer switching electric appliance;
Fig. 2 is a structural representation of the present invention.
Fig. 3 be Fig. 2 C-C to cutaway view Amplified image, two rotating shafts of the present invention all are in gate-dividing state;
Fig. 4 is that a rotating shaft of the present invention is in gate-dividing state, the structure chart when another root is in "on" position;
Fig. 5 is that a rotating shaft of the present invention is in "on" position, the structure chart when another root is in gate-dividing state;
Fig. 6 is the structure charts of two rotating shafts of the present invention when turning to interlocking simultaneously;
Fig. 7, Fig. 8 are the structure charts of cantilever of the present invention.
Embodiment
With reference to Fig. 1,2,7,8, use automatic change-over of the present invention to comprise base plate 4, support 3 and support 10 are housed at the base plate two ends, the installed inside of support 3 has drive unit 1 and drive unit 2, and support 3,5 is provided with rotating shaft 5 and rotating shaft 11.Described rotating shaft 5 is provided with connecting rod 6, cantilever 7 and moving contact system 9, and rotating shaft 11 is provided with connecting rod 12, cantilever 13 and moving contact system 15.Described cantilever 7 is provided with retainer 8, and cantilever 13 is provided with retainer 14.Connecting rod 6 in the described rotating shaft 5 is connected with drive unit 1, and the connecting rod 12 in the rotating shaft 11 is connected with drive unit 2.Described two cantilevers 7,13 are provided with in opposite directions, and are axially staggering, and are provided with retainer 8 towards the side (right side) of cantilever 13 on the cantilever 7, are provided with retainer 14 towards the side (left side) of cantilever 7 on the cantilever 13.Cantilever 7 is provided with the stop surface A with retainer 14 relative configurations, and cantilever 13 is provided with the stop surface B with retainer 8 relative configurations, and described stop surface A, B are the inclined-plane.
When the masterpiece of drive unit 1 was used on the connecting rod 6, rotating shaft 5 will rotate, and rotating shaft 5 drives moving contact systems 9 and rotates, thus finish a power end of automatic change-over closure, open.Cantilever 7 in rotating shaft 5 also and then rotates simultaneously.
When the masterpiece of drive unit 2 was used on the connecting rod 12, rotating shaft 11 will rotate, and rotating shaft 11 drives moving contact systems 15 and rotates, thus finish another power end of automatic change-over closure, open.Cantilever 13 in rotating shaft 11 also and then rotates simultaneously.
With reference to Fig. 3, two groups of moving contact systems of automatic change-over all are in gate-dividing state, the cantilever 7 in the rotating shaft 5, and the cantilever 13 in the rotating shaft 11 is in position as shown, and mutually noninterfere is the rotation of next step rotating shaft 5 or rotating shaft 11 work of getting ready.
When drive unit 2 acts on the connecting rod 12 effectively, will drive rotating shaft 11 and clockwise rotate, when rotating shaft 11 turned to as shown in Figure 4 position, moving contact system 15 closed a floodgate, the stop surface A on the cantilever 7 that will conflict of the retainer 14 on the cantilever 13.If at this moment act on effectively on the connecting rod 6, rotating shaft 5 also can't be rotated.
Get back to Fig. 3, two groups of moving contact systems of automatic change-over all are in the state of separating brake, when drive unit 1 acts on the connecting rod 6 effectively, will drive rotating shaft 5 rotates, when rotating shaft 5 rotates counterclockwise as shown in Figure 5 position, moving contact system 9 closes a floodgate, the stop surface B on the cantilever 13 that will conflict of the retainer 8 on the cantilever 7.If at this moment act on effectively on the connecting rod 12, rotating shaft 11 also can't be rotated.
Still get back to Fig. 3, two groups of moving contact systems of automatic change-over all are in the state of separating brake, when connecting rod 6, connecting rod 12 is subjected to drive unit 1 and 2 to do the time spent simultaneously, rotating shaft 5, rotating shaft 11 will be rotated by counterclockwise and clockwise direction respectively, if act on connecting rod 6, power size on the connecting rod 12 is identical, the time of effect is when also identical, two rotating shafts 5,11 when low-angle of uniform rotation (angle of the required rotation of rotating shaft when reaching the electrical equipment combined floodgate far away), just reach as shown in Figure 6, at this moment stop surface A on the cantilever 7 and the retainer 14 on the cantilever 13 are inconsistent, stop surface B and the retainer 8 on the cantilever 7 on the cantilever 13 is inconsistent simultaneously, thereby formed competing situation, the result causes rotating shaft 5, rotating shaft 11 all can not be rotated.
If the time that acts on power size on connecting rod 6, the connecting rod 12, effect, any one was different or not simultaneously, will appearance and the result of Fig. 4 or Fig. 5.
With reference to Fig. 7, Fig. 8, described retainer 8,14 can with corresponding cantilever 7,13 integrated designs, by the mode one-shot forming of punching press; Also can be connected on the cantilever 7,13 by the mode of riveted joint or welding.
What should be understood that is: the foregoing description is just to explanation of the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed in the connotation scope of the present invention all fall within protection scope of the present invention.
Claims (4)
1, a kind of mechanical interlocks of automatic change-over, comprise two rotating shafts (5,11) and two drive units (1,2), described each drive unit (1,2) drive corresponding rotating shaft (5,11) by a connecting rod (6,12) respectively, it is characterized in that described every rotating shaft (5,11) also be provided with a cantilever (7,13) on, described each cantilever (7,13) be provided with a retainer (8,14) and stop surface (A, B), and one of them cantilever (7,13) retainer (8 on, 14) with another cantilever (13,7) on stop surface (B, A) relatively configuration.
2, the mechanical interlocks of automatic change-over as claimed in claim 1 is characterized in that described two cantilevers (7,13) are provided with in opposite directions, and axially staggering the retainer (8 on described each cantilever (7,13), 14) be arranged on the side of another cantilever (13,7).
3, the mechanical interlocks of automatic change-over as claimed in claim 2 is characterized in that (A B) is the inclined-plane to described stop surface.
4,, it is characterized in that described two rotating shafts (5,11) are arranged on the pair of brackets (3,10) as the mechanical interlocks of any one described automatic change-over of claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100702220A CN100557744C (en) | 2007-07-27 | 2007-07-27 | A kind of mechanical interlocks of automatic change-over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100702220A CN100557744C (en) | 2007-07-27 | 2007-07-27 | A kind of mechanical interlocks of automatic change-over |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101101822A CN101101822A (en) | 2008-01-09 |
| CN100557744C true CN100557744C (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100702220A Active CN100557744C (en) | 2007-07-27 | 2007-07-27 | A kind of mechanical interlocks of automatic change-over |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231452A (en) * | 2017-12-30 | 2018-06-29 | 宋江海 | A kind of novel reciprocal power supply maker |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783284B (en) * | 2015-11-24 | 2018-12-21 | 施耐德电气工业公司 | Dual-power transfer switch |
| CN110223867B (en) * | 2019-07-01 | 2024-02-20 | 乐清东海电器有限公司 | Moving contact interlocking mechanism of automatic transfer switch wiring terminal |
-
2007
- 2007-07-27 CN CNB2007100702220A patent/CN100557744C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231452A (en) * | 2017-12-30 | 2018-06-29 | 宋江海 | A kind of novel reciprocal power supply maker |
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| Publication number | Publication date |
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| CN101101822A (en) | 2008-01-09 |
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Assignee: Zhejiang Zhengtai Electromechanical & Electric Co., Ltd. Assignor: Zhengtai Electric Appliance Co., Ltd., Zhejiang Contract record no.: 2010330001022 Denomination of invention: Mechanical interlocking device of automatic switching switch Granted publication date: 20091104 License type: Exclusive License Open date: 20080109 Record date: 20100526 |