CN2507121Y - Large current bridge type isolator - Google Patents
Large current bridge type isolator Download PDFInfo
- Publication number
- CN2507121Y CN2507121Y CN 01247059 CN01247059U CN2507121Y CN 2507121 Y CN2507121 Y CN 2507121Y CN 01247059 CN01247059 CN 01247059 CN 01247059 U CN01247059 U CN 01247059U CN 2507121 Y CN2507121 Y CN 2507121Y
- Authority
- CN
- China
- Prior art keywords
- brachium pontis
- contact
- isolator
- bridge arm
- pull bar
- 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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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The utility model discloses a heavy current bridged insulator, and a connecting board (18) fixed with a principal shaft (8) is connected with a pulling rod (19). The other end of the pulling rod (19) is connected with a bridge arm (11) through an insulated block (17), and one end of the bridge arm (11) is flexibly connected on a fixing frame (21). The two ends of the pulling rod (19) are separately connected with the connecting board (18) and the insulated block (17) with flexible shaft. The bridge arm (11) is provided with a moving contact (20) in the corresponding position with a static contact (14). The corresponding positions of the bridge arm (11) and the fixing frame (21) are provided with slots, and the middle portion forms a gemel (15) by the pin shaft connection. The interspace between the two contacts employs the tightly contacting form, which ensures a better contact between the contacts without abrasion among the contacting heads, prolongs the life span of the insulator and satisfies the technical requirement of heavy current electro-equipments.
Description
Technical field
The utility model relates to a kind of bridge-type isolator of single-phase big electric current AC/DC.
Background technology
Usually used interchange high and low pressure isolator is isolation and the connection that is used for three-phase high and low pressure ac circuit in industrial and mining enterprises.The dynamic and static contact of this type of isolation device mostly is naked copper or silver-plated processing, and adopts the spring compression structure.In or the action that disconnects often closed repeatedly at dynamic and static contact, because the frictional force between two contacts is bigger, not only operation effort, member also easy deformation is impaired.And the silver coating of contact is easy to be worn, and then has influence on electric conductivity.
In addition, usually the big electric current knife-shaped isolator of employed dc bus formula is a bus-type arranged side by side in the D.C. high-current loop, the blade that is combined into of two contacts rotates insert structure, contact pressure between the contact is that the ecto-entad transmission compresses, so the contact pressure of each contact can not arbitrarily be adjusted separately.Because it is connected in series with in the biside plate for bus arranged side by side and in addition fastening structure, thus the repairing of each conductive plate and each contact with change comparatively inconvenience.Such isolator is limit owing to structure, only for the workplace that is used in D.C. high-current.
The content of utility model
The technical problems to be solved in the utility model is: in order to overcome the deficiencies in the prior art, and provide a kind of dynamic and static contact to adopt direct compressing structure, there are not friction, long service life, contact hardness height, the big electric current bridge-type of AC/DC heat-resisting and that conduct electricity very well isolator during work.
Improvement of the present utility model is: the connecting plate fixing with main shaft is connected with pull bar, and the other end of pull bar is connected with brachium pontis by collets, and an end of brachium pontis is movably connected on the fixed mount.
Further improvement of the utility model is: the two ends of pull bar are connected with the collets live axle with connecting plate respectively.On brachium pontis, be provided with and the corresponding moving contact in fixed contact position.The corresponding position of brachium pontis and fixed mount is equipped with slotted hole, and the centre constitutes a hinge by the bearing pin cross-under.Moving contact and fixed contact are made by silver-nickel, and are embedded in respectively in brachium pontis and the fixed contact.
The beneficial effects of the utility model are: owing to adopted many brachium pontis to make up the structure of synchronization action side by side, dynamic and static contact is the butt joint compacted form, and brachium pontis and holddown spring can make enough operating pressures between two contacts, guarantee the good contact between two contacts.Used long hole forms in the hinge, both having made does not have the wearing and tearing existence between contact, prolonged the useful life of contact again.And two the contact used the silver-nickel material, remove and to have higher hardness and heat resistance, also have good conductivity, improved the through-current capability of two contacts, be fit to very much the use of AC and DC high-current equipment in the industrial and mining enterprises.
Description of drawings
Fig. 1: structural representation of the present utility model.
The end view of Fig. 2: Fig. 1.
The A-A view ("on" position) of Fig. 3: Fig. 1.
The A-A view (gate-dividing state) of Fig. 4: Fig. 1.
Fig. 5: hinge arrangement schematic diagram.
Embodiment
As shown in Figure 1 and Figure 2, this isolator has a main shaft 8, and the two ends of main shaft 8 penetrate upper and lower support plate 6 respectively.Main shaft 8 upper ends of passing through upper supporting plate 6 are connected with eccentric collision block 10, and this collision block 10 clashes into the travel switch 9 that is fixed on support plate 6 respectively in rotation process.And the lower end of main shaft 8 is connected with gear 3, gear 3 and gear 4 engaged transmission, and gear 4 links to each other with motor 1 with decelerator 2 again.Be embedded with the vertically vertical parallel arrangement successively of brachium pontis 11 with the main shaft 8 of moving contact 20.
As shown in Figure 3, Figure 4, be fixed with on main shaft 8 and the corresponding connecting plate 18 of brachium pontis 11 quantity, the two ends live axle of each connecting plate 18 is connected with arc pull bar 19, the termination of pull bar 19 again be fixed on brachium pontis 11 on collets 17 live axles be connected.These collets 17 are fixed on the brachium pontis 11 by bolt 16, spring 13 and nut 12.Be embedded with fixed contact 14 in the termination of fixed contact 7, and corresponding with moving contact 20 positions on the brachium pontis 11.One end of brachium pontis 11 is connected (referring to Fig. 5) on the fixed mount 21 by the hinge 15 that is made of slotted hole and bearing pin.
Combined floodgate of this isolator and separating brake all are to be driven decelerator 2 and come driving main shaft 8 to rotate by gear 3,4 by motor 1, are turned left by connecting plate 18 or transfer inwardly or outwards pulling or promote the action of brachium pontis 11 of realization to the right.When main shaft 8 clockwise rotates, 18 while of the connecting plate clockwise direction of fixing with main shaft 8 rotates, connecting plate 18 drives pull bar 19 and inwardly encircles, pull bar 19 pulling collets 17 and brachium pontis 11 are inwardly to move in the center of circle with hinge 15, and the moving contact 20 that is embedded in the brachium pontis 11 is pressed on the fixed contact 14, finish combined floodgate work (referring to Fig. 3).When brachium pontis 11 arrives closing position and makes spring 13 reach authorized pressure, the collision block 10 impact stroke switches 9 that are connected with main shaft 8, cut off the power supply of motor 1 by the control loop of travel switch 9 control, decelerator 2 stalls, thus make isolator remain on reliable combined floodgate operating state.
When decelerator 2 drive main shafts 8 counterclockwise rotate, connecting plate 18 on the main shaft 8 also rotates simultaneously, promoting pull bar 19 outwards opens, and pass through collets 17 promotion brachium pontis 11 and outwards move around hinge 15, moving contact 20 on the brachium pontis 11 is broken away from fixed contact 14, finish separating brake work (referring to Fig. 4).When brachium pontis 11 arrived gate-dividing states, the collision block 10 that is connected with main shaft 8 collided another travel switch 9 again, and by the power supply of the control loop cut-out motor 1 of travel switch 9 controls, decelerator 2 stalls then can make isolator remain on reliable gate-dividing state.
This isolator all is an independent working cell because of every group of brachium pontis 11, contact pressure when all guaranteeing that by separately spring 13 dynamic and static contact 20,14 closes a floodgate, so, can adjust nut 12 if find easily when pressure is not enough between certain group contact, reach its specification requirement by pressuring spring 13, guarantee excellent contact and work reliably.
Claims (5)
1, a kind of big electric current bridge-type isolator, it is characterized in that the connecting plate of fixing with main shaft (8) (18) is connected with pull bar (19), and the other end of pull bar (19) is connected with brachium pontis (11) by collets (17), and an end of brachium pontis (11) is movably connected on the fixed mount (21).
2, isolator as claimed in claim 1 is characterized in that the two ends of pull bar (19) are connected with collets (17) live axle with connecting plate (18) respectively.
3, isolator as claimed in claim 1 is characterized in that being provided with on brachium pontis (11) and the corresponding moving contact in fixed contact (14) position (20).
4, isolator as claimed in claim 1 is characterized in that the corresponding position of brachium pontis (11) and fixed mount (21) is equipped with slotted hole, and the centre constitutes a hinge (15) by the bearing pin cross-under.
5, as claim 1 or 3 described isolators, it is characterized in that moving contact (20) and fixed contact (14) make by silver-nickel, and in be embedded in brachium pontis respectively (11) and the fixed contact (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247059 CN2507121Y (en) | 2001-09-19 | 2001-09-19 | Large current bridge type isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247059 CN2507121Y (en) | 2001-09-19 | 2001-09-19 | Large current bridge type isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2507121Y true CN2507121Y (en) | 2002-08-21 |
Family
ID=33657967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247059 Expired - Lifetime CN2507121Y (en) | 2001-09-19 | 2001-09-19 | Large current bridge type isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2507121Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103155077A (en) * | 2010-10-08 | 2013-06-12 | 施耐德电气美国股份有限公司 | Dual breaking point electrical joint |
| CN102484014B (en) * | 2009-08-20 | 2015-10-14 | 西门子公司 | For the isolating switch of switchgear |
-
2001
- 2001-09-19 CN CN 01247059 patent/CN2507121Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102484014B (en) * | 2009-08-20 | 2015-10-14 | 西门子公司 | For the isolating switch of switchgear |
| CN103155077A (en) * | 2010-10-08 | 2013-06-12 | 施耐德电气美国股份有限公司 | Dual breaking point electrical joint |
| CN103155077B (en) * | 2010-10-08 | 2016-09-07 | 施耐德电气美国股份有限公司 | Double breaking points electrical connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110919 Granted publication date: 20020821 |
|
| DD01 | Delivery of document by public notice |
Addressee: Shaanxi Zhongdian Electric Appliances Mfg. Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |