CN201673843U - Bridge-type large-current isolator - Google Patents
Bridge-type large-current isolator Download PDFInfo
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- CN201673843U CN201673843U CN2010202163617U CN201020216361U CN201673843U CN 201673843 U CN201673843 U CN 201673843U CN 2010202163617 U CN2010202163617 U CN 2010202163617U CN 201020216361 U CN201020216361 U CN 201020216361U CN 201673843 U CN201673843 U CN 201673843U
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- splicing ear
- isolator
- insulation plate
- inlet wire
- outlet
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Abstract
The utility model discloses a bridge-type large-current isolator. A driving mechanism of the isolator is mounted on an upper insulating plate or a lower insulating plate; an output shaft of the driving mechanism is inserted into a large shaft of the isolator; the large shaft of the isolator is hinged together with a movable bridge arm through a connecting plate, an insulating pull rod and a U-shaped connecting rod; a pressure spring component is mounted at the central position of the movable bridge arm; one end of the movable bridge arm is connected with a wire outlet connecting terminal through a pin shaft; the other end of the movable bridge arm is connected with a wire inlet connecting terminal; a travel switch is mounted at one end of the large shaft of the isolator; the other end of the large shaft is fixedly connected onto the lower insulating plate; and the lower insulating plate is fixedly connected with mounting channel steel. The wire inlet connecting terminal and the wire outlet connecting terminal of the isolator can be made of materials in copper-copper, copper-aluminum and aluminum-aluminum combined modes; a movable bridge arm contact and a fixed contact are in lapped structures; no jamming point is reserved between the contacts; and the bridge-type large-current isolator has the advantages of simple structure, simple and convenient processing technique, low cost, safe and reliable running and the like, and is widely applied to electrolysis and chemical industry.
Description
Technical field
The utility model relates to industry isolators such as electrolysis, chemical industry, is specifically related to the big galvanic separation of a kind of bridge-type.
Background technology
The used dc isolator of current electrolysis aluminium industry is mainly based on HD29 type bridge-type isolator, and this isolator is through the operation of the scene more than 8 years, and its every technical parameter is stable, meet relevant technical standard, but there is following shortcoming in it:
1. adopt copper plate to bend into and out of line terminals and form complex manufacturing, production cost height;
2. driving mechanism is installed on the special-purpose fitting insulating panels, and this insulation board is connected with upper insulation plate by bolt, and it is many to produce parts, and assembly period is long;
3. the driving mechanism output shaft is by a pair of gear reduction rear drive isolator macro-axis, and the transmission parts are many, the production cost height;
4. connect between column and the upper and lower insulation board and be connected by bolt, its creepage distance is little, and usage safety performance is not high.
Summary of the invention
The purpose of this utility model provides that a kind of production technology is simple, cost is low, simple installation, the big galvanic separation of a kind of bridge-type that usage safety performance is high.
In order to overcome the deficiencies in the prior art, the technical solution of the utility model is to solve like this: the big galvanic separation of a kind of bridge-type, by a driving mechanism, travel switch, the inlet wire splicing ear, the outlet splicing ear, upper insulation plate, lower insulation plate, moving brachium pontis, the isolator macro-axis is formed, special character of the present utility model is that described driving mechanism is a twin-stage worm gear-endless screw reductor, this driving mechanism is installed on upper insulation plate or the lower insulation plate, the output shaft of described driving mechanism inserts in the isolator macro-axis, the isolator macro-axis is with to be connected connecting lever fixedly connected, one end of U type connecting rod one end and insulated tension pole is articulated and connected, the U type connecting rod other end be connected connecting lever and be articulated and connected, the described insulated tension pole other end links together by compression spring assembly and moving brachium pontis, one end of described moving brachium pontis is hingedly connected together by bearing pin and hinge seat, moving brachium pontis rotates around bearing pin, the two ends of described moving brachium pontis are welded with silver alloy moving contact respectively, one termination of described inlet wire splicing ear and outlet splicing ear is welded with silver alloy fixed contact respectively, described silver alloy moving contact is corresponding with the welding position of described silver alloy fixed contact, one end of described isolator macro-axis is connected with travel switch, the other end is connected on lower insulation plate or the upper insulation plate, described travel switch and described driving mechanism are installed on upper insulation plate or the lower insulation plate at the same time or separately, and described lower insulation plate is fixedlyed connected with the installation channel-section steel;
The upper end of described inlet wire splicing ear and outlet splicing ear or the upper end that is connected column are thoroughly done away with the edge pillars by 8 at least and are fixedlyed connected with upper insulation plate, and the lower end of described inlet wire splicing ear and outlet splicing ear or the lower end that is connected column are passed through 8 eradication edge pillars at least and fixedlyed connected with lower insulation plate.
Described inlet wire splicing ear and outlet splicing ear are the section bar binding post.
Described moving brachium pontis is formed moving brachium pontis heap by the individual module stacking splicing.
Described inlet wire splicing ear and outlet splicing ear are aluminium-aluminium section bar binding post, and wherein inlet wire splicing ear and outlet splicing ear are aluminium section bar board.
Described inlet wire splicing ear and outlet splicing ear are copper-copper section bar binding post, and wherein the inlet wire splicing ear is individually fixed in the outlet splicing ear and is connected on the column.
Described inlet wire splicing ear and outlet splicing ear are copper-aluminium section bar binding post, and wherein the inlet wire splicing ear is fixed in and connects on the column, and the outlet splicing ear is an aluminium section bar board.
Compared with prior art, the utlity model has simple in structurely, processing technology is easy, and production cost is low, good looking appearance, and advantage such as safe and reliable to operation, and have following characteristics:
1, moving brachium pontis and fixed contact are bridging arrangement, no stuck point between contact, and isolator under any circumstance can carry out divide-shut brake.
2, the bridge-type knife switch structurally adopts U type connecting rod-spring compression mechanism, make the pressure of each contact relatively independent, can adjust contact pressure between dynamic and static contact by spring-adjusting nut, and can detect by pressure-measuring instrument, guarantee that the pressure between each contact is even.
3, the branch of the dynamic and static contact of bridge-type isolator is combined into the overlap joint compressing structure, and dynamic and static contact does not have slide relative, do not have wearing and tearing during breaking-closing operating, has improved its useful life.Be 5 times of bus-type isolator the mechanical endurance of bridge-type isolator.
4, bridge-type isolator maintainability is good, and is separate between dynamic/static contact, modularized design, by hinges fixing separately on quiet plate.When certain module broke down, the module dismounting and change that can will break down immediately under charged situation had guaranteed normally carrying out of production.
5, dynamic and static contact all forms through machining.Its size, accuracy of form and position height through the contact indentation test, guarantees that contact is good between contact when dispatching from the factory, and has guaranteed every electric property of isolator.
6, the installation of isolator is more simple, and the set-up time approximately is 1/3 of a bus-type isolator.
7, the design of travel switch and driving mechanism is convenient to the wiring and the management of equipment at the homonymy of isolator.
8, driving mechanism adopts twin-stage worm gear-endless screw reductor, and operation is more steadily reliable, and noise is lower, and has disposed 6 and often driven 6 normally closed travel switches, satisfies user's operation and control requirement.
9, contact adopts the silver alloy more than 90%, the discharge capacity height of contact not only, and also mechanical strength is good.
Technical parameter is as follows: rated operational voltage DC2000V
Industrial frequency withstand voltage 10000V/min
Mechanical endurance 〉=10000h
Control power supply AC220
Environment for use and condition: height above sea level is no more than 2000 meters; Relative humidity is not more than 90%; Ambient air temperature is no more than 40 ℃, is not less than-25 ℃;
Be widely used in electrolysis, industries such as chemical industry.
Description of drawings
Fig. 1 adopts the structural representation of copper-copper section bar wiring splicing ear for the utility model;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the utility model isolator open mode structural representation;
Fig. 4 adopts the structural representation of aluminium-aluminium section bar wiring splicing ear for the utility model;
Fig. 5 is the profile of Fig. 4;
Fig. 6 adopts the structural representation of copper-aluminium section bar wiring splicing ear for the utility model;
Fig. 7 is the A-A profile of Fig. 6.
Embodiment
Accompanying drawing is embodiment of the present utility model.
Below in conjunction with accompanying drawing summary of the invention is described further:
Referring to figs. 1 through shown in Figure 7, the big galvanic separation of a kind of bridge-type, by a driving mechanism 7, travel switch 6, inlet wire splicing ear 3, outlet splicing ear 13, upper insulation plate 5, lower insulation plate 2, moving brachium pontis 9, isolator macro-axis 15 is formed, described driving mechanism 7 is a twin-stage worm gear-endless screw reductor, this driving mechanism 7 is installed on upper insulation plate 5 or the lower insulation plate 2, the output shaft of described driving mechanism 7 inserts in the isolator macro-axis 15, isolator macro-axis 15 is with to be connected connecting lever 19 fixedly connected, one end of U type connecting rod 12 1 ends and insulated tension pole 11 is articulated and connected, U type connecting rod 12 other ends be connected connecting lever 19 and be articulated and connected, described insulated tension pole 11 other ends link together by compression spring assembly 10 and moving brachium pontis 9, one end of described moving brachium pontis 9 is hingedly connected together by bearing pin 14 and hinge seat 16, moving brachium pontis 9 rotates around bearing pin 14, the two ends of described moving brachium pontis 9 are welded with silver alloy moving contact 17 respectively, described inlet wire splicing ear 3 is welded with silver alloy fixed contact 18 respectively with a termination of outlet splicing ear 13, described silver alloy moving contact 17 is corresponding with the welding position of described silver alloy fixed contact 18, one end of described isolator macro-axis 15 is connected with travel switch 6, the other end is connected on lower insulation plate 2 or the upper insulation plate 5, described travel switch 6 and described driving mechanism 7 are installed on upper insulation plate 5 or the lower insulation plate 2 at the same time or separately, and described lower insulation plate 2 is fixedlyed connected with installation channel-section steel 1;
The upper end of described inlet wire splicing ear 3 and outlet splicing ear 13 or the upper end that is connected column 8 are thoroughly done away with edge pillars 4 by 8 at least and are fixedlyed connected with upper insulation plate 5, and the lower end of described inlet wire splicing ear 3 and outlet splicing ear 13 or the lower end that is connected column 8 are passed through 8 eradication edge pillars 4 at least and fixedlyed connected with lower insulation plate 2.
Described inlet wire splicing ear and outlet splicing ear are the section bar binding post.
Described moving brachium pontis is formed moving brachium pontis heap by the individual module stacking splicing.
Described inlet wire splicing ear 3 and outlet splicing ear 13 are aluminium-aluminium section bar binding post, and wherein inlet wire splicing ear 3 and outlet splicing ear 13 are aluminium section bar board.
Described inlet wire splicing ear 3 and outlet splicing ear 13 are copper-copper section bar binding post, and wherein inlet wire splicing ear 3 is individually fixed in outlet splicing ear 13 and is connected on the column 8.
Described inlet wire splicing ear 3 and outlet splicing ear 13 are copper-aluminium section bar binding post, and wherein inlet wire splicing ear 3 is fixed in and connects on the column 8, and outlet splicing ear 13 is an aluminium section bar board.
When driving mechanism 7 drove 15 rotations of isolator macro-axis, isolator macro-axis 15 drove moving brachium pontis 9 by U type connecting rod 12, insulated tension pole 11 and rotates around bearing pin 14, and constituted the separating brake or the combined floodgate of isolator.
In sum, when isolator macro-axis 15 is rotated counterclockwise, rotate by the moving brachium pontis 9 of connection connecting lever 19, U type connecting rod 12 and insulated tension pole 11 pullings, moving brachium pontis 9 rotations drop to horizontal level and contact and stop motion with outlet splicing ear 13 when (as shown in Figure 2); This moment, motor still drove 15 rotations of isolator macro-axis, so, isolator macro-axis 15 begins by connecting connecting lever 19 and U type connecting rod 12, insulated tension pole 11, compression pressure spring assembly 10, the silver alloy moving contact 17 of moving brachium pontis 9 compresses gradually with the silver alloy fixed contact 18 of outlet splicing ear 13, stroke cam up to isolator macro-axis 15 1 ends triggers travel switch, and motor stops operating, and combined floodgate puts in place.Pressure between the final dynamic/static contact remains on 38～45kgf.
Motor backward rotation, isolator macro-axis 15 drive U type connecting rod 12 and at first loosen compression spring, promote moving brachium pontis 9 by insulated tension pole 11 then and open, and promptly open isolator, have realized sub-switching operation.
Claims (6)
1. big galvanic separation of bridge-type, by a driving mechanism (7), travel switch (6), inlet wire splicing ear (3), outlet splicing ear (13), upper insulation plate (5), lower insulation plate (2), moving brachium pontis (9), isolator macro-axis (15) is formed, it is characterized in that: described driving mechanism (7) is a twin-stage worm gear-endless screw reductor, this driving mechanism (7) is installed on upper insulation plate (5) or the lower insulation plate (2), the output shaft of described driving mechanism (7) inserts in the isolator macro-axis (15), isolator macro-axis (15) is with to be connected connecting lever (19) fixedly connected, one end of U type connecting rod (12) one ends and insulated tension pole (11) is articulated and connected, U type connecting rod (12) other end be connected connecting lever (19) and be articulated and connected, described insulated tension pole (11) other end links together by compression spring assembly (10) and moving brachium pontis (9), one end of described moving brachium pontis (9) is hingedly connected together by bearing pin (14) and hinge seat (16), moving brachium pontis (9) rotates around bearing pin (14), the two ends of described moving brachium pontis (9) are welded with silver alloy moving contact (17) respectively, described inlet wire splicing ear (3) is welded with silver alloy fixed contact (18) respectively with a termination of outlet splicing ear (13), described silver alloy moving contact (17) is corresponding with the welding position of described silver alloy fixed contact (18), one end of described isolator macro-axis (15) is connected with travel switch (6), the other end is connected on lower insulation plate (2) or the upper insulation plate (5), described travel switch (6) and described driving mechanism (7) are installed on upper insulation plate (5) or the lower insulation plate (2) at the same time or separately, and described lower insulation plate (2) is fixedlyed connected with installation channel-section steel (1);
The upper end of described inlet wire splicing ear (3) and outlet splicing ear (13) or the upper end that is connected column (8) are thoroughly done away with edge pillars (4) by 8 at least and are fixedlyed connected with upper insulation plate (5), and the lower end of described inlet wire splicing ear (3) and outlet splicing ear (13) or the lower end that is connected column (8) are passed through 8 eradication edge pillars (4) at least and fixedlyed connected with lower insulation plate (2).
2. the big galvanic separation of a kind of bridge-type according to claim 1 is characterized in that: described inlet wire splicing ear and outlet splicing ear are the section bar binding post.
3. the big galvanic separation of a kind of bridge-type according to claim 1 is characterized in that: described moving brachium pontis is formed moving brachium pontis heap by the individual module stacking splicing.
4. the big galvanic separation of a kind of bridge-type according to claim 2, it is characterized in that: described inlet wire splicing ear (3) and outlet splicing ear (13) are aluminium-aluminium section bar binding post, and wherein inlet wire splicing ear (3) and outlet splicing ear (13) are aluminium section bar board.
5. the big galvanic separation of a kind of bridge-type according to claim 2, it is characterized in that: described inlet wire splicing ear (3) and outlet splicing ear (13) are copper-copper section bar binding post, and wherein inlet wire splicing ear (3) is individually fixed in outlet splicing ear (13) and is connected on the column (8).
6. the big galvanic separation of a kind of bridge-type according to claim 2, it is characterized in that: described inlet wire splicing ear (3) and outlet splicing ear (13) are copper-aluminium section bar binding post, wherein inlet wire splicing ear (3) is fixed in and connects on the column (8), and outlet splicing ear (13) is an aluminium section bar board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202163617U CN201673843U (en) | 2010-06-04 | 2010-06-04 | Bridge-type large-current isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202163617U CN201673843U (en) | 2010-06-04 | 2010-06-04 | Bridge-type large-current isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673843U true CN201673843U (en) | 2010-12-15 |
Family
ID=43331251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202163617U Expired - Fee Related CN201673843U (en) | 2010-06-04 | 2010-06-04 | Bridge-type large-current isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673843U (en) |
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2010
- 2010-06-04 CN CN2010202163617U patent/CN201673843U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20160604 |