CN102543549A - Isolating switch body of railway traffic - Google Patents
Isolating switch body of railway traffic Download PDFInfo
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- CN102543549A CN102543549A CN2012100298308A CN201210029830A CN102543549A CN 102543549 A CN102543549 A CN 102543549A CN 2012100298308 A CN2012100298308 A CN 2012100298308A CN 201210029830 A CN201210029830 A CN 201210029830A CN 102543549 A CN102543549 A CN 102543549A
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- isolating switch
- contact
- switch body
- knife
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Abstract
The invention discloses an isolating switch body of railway traffic, wherein in a moving contact component structure, a moving contact knife is welded on a conduction plate and mounted on a rotation shaft; a soft connection is formed by respectively fixing two ends which are overlapped by a plurality layers of strip-shaped copper sheets and bended to be U-shaped on a connecting plate; two soft connections are in bilateral symmetry and are fixed between the conduction plate and a T-shaped connecting plate. A static contact component structure is as follows: two locking rods are fixed on a contact knife splint; a plurality of unit clamp-shaped components are hung on the two locking rods; an I-shaped plate is arranged between two adjacent unit clamp-shaped components; the unit clamp-shaped component structure is as follows: two left contact fingers are overlapped and hung on a locking rod, two right contact fingers are overlapped and hung on the other locking rod, pits at external sides of the left and right contact fingers are respectively provided with a cylindrical pin, and a tension spring is hung on an annular groove of two cylindrical pins. The isolating switch body disclosed by the invention has the advantages of good heat dissipation, strong flowing capacity and long service life; and the isolating switch body is suitable for the occasions at which the rated voltage DC is 1800 V and the rated current is 4000 A.
Description
Technical field
The present invention relates to isolating switch, especially for the subway power supply circuit, rated voltage DC1800V, the isolating switch of rated current 4000A.
Background technology
The Chinese patent document discloses a kind of " big dc-isolation switch is with the two guidance contacts devices of major diameter ", and (201110221952.2) its moving contact is the good loop configuration of a major diameter conductivity, and fixed contact is made up of inside and outside two circle fingertips.Electrically contact more reliably behind the combined floodgate, through-current capability is bigger.Its shortcoming is, one of which, the combined floodgate of moving contact and fixed contact can only be translation mode rather than moving contact rotating manner, and as far as motor power, power drive mechanism is complicated, energy consumption is bigger.Its two, fixed contact relies on the spring force of inside and outside fingertip to form the crimp force to moving contact, this crimp force is owing to the loop configuration reason, still exists to electrically contact a problem of reliability shortcoming.And the movable touch knife of existing isolating switch (as 201020617511.5) all is contained in the rotating shaft.Hinged or directly be hinged on the free bearing between rotating shaft and the terminal block, thereby under event of overload, this structure is little at the electric interface of the hinged place of movable touch knife and rotating shaft junction surface and rotating shaft and terminal block, through-current capability is less.
Summary of the invention
The purpose of this invention is to provide a kind of fixed contact component chimeric power balanced, be convenient to regulate length to adapt to load variations, big, the good heat dissipation of contact area between movable touch knife and the terminal block in the moving contact component, track traffic isolating switch body that through-current capability is big simultaneously.
The objective of the invention is to realize like this: a kind of track traffic isolating switch body; Form by moving contact component and fixed contact assembly; Said moving contact component structure is: movable touch knife is installed in the rotating shaft; Be welded with conductive plate on the movable touch knife, the two ends superimposed by multilayer bar shaped copper sheet and that be bent into " U " font that are flexible coupling are separately fixed on the gusset piece and constitute; Two left and right being symmetrical set that are flexible coupling: the gusset piece at each two ends that are flexible coupling is respectively between the terminal block of the conductive plate that is bolted to the movable touch knife assembly and " T " font;
Said fixed contact modular construction is: be fixed with two locking bars on two cant boards of the contact knife clamping plate of channel steel shape, hang with the pincerlike member in a plurality of unit on these two locking bars successively, hang with worker's shape plate on two locking bars between the pincerlike member in adjacent two unit; The pincerlike element structure of said units is: two left fingertips are overlapping and hang on the locking bar; Overlapping and hang on another root locking bar with two right fingertips of left fingertip symmetry; In the pit in the outside, two left fingertip middle and upper parts a straight pin is arranged; In the pit in the outside, two right fingertip middle and upper parts another straight pin is arranged, an extension spring hangs on the annular groove at above-mentioned two straight pins middle part.
The above-mentioned copper sheet that is flexible coupling is 100 layers, and every layer of copper sheet thickness is 0.1mm, and the length of every layer of copper sheet * wide is 120mm * 60mm.
On the above-mentioned copper sheet that is flexible coupling silver coating is arranged, silver coating is arranged on the movable touch knife.
Above-mentioned movable touch knife is installed in the insulation rotating shaft.
Above-mentioned two locking bars are erected at respectively on the hole of two cant boards of contact knife clamping plate, and the outer end of two locking bars is fixed through back-up ring.
Through screw external contact arm is arranged between two cant boards of above-mentioned contact knife clamping plate, external contact arm is provided with wiring hole.
When movable touch knife inserts pincerlike contact, electric current through pincerlike contact, movable touch knife and double loop be flexible coupling, terminal block forms path.The employing double loop is flexible coupling, and is the needs that satisfied heat radiation, electric life and the mechanical endurance of movable position conductor when movable touch knife rotates.This isolating switch body detects institute in July, 2011 in the Zunyi product quality inspection and has passed through type approval test as on the GGN-15/4000 track traffic isolating switch.
Compared with prior art, the present invention has following characteristics:
1, the movable touch knife that is directed against existing isolating switch is in the little shortcoming of poor electric contact, the through-current capability of its hinged place; Be connected through bolt crimping mode by soft multilayer build-up copper sheet between movable touch knife of the present invention and the terminal block; Thereby it is big to have contact area, and contact site pressure is big; Contact resistance is littler, the characteristics that through-current capability is bigger.Simultaneously, the double loop of multilayer build-up copper sheet is flexible coupling for existing articulated structure, has that heat-sinking capability is strong, the advantage of longer service life.
2, for convenience detach, assembling, adaptability is strong
When current capacity is big, can suitably increase the number of the pincerlike assembly in unit;
When current capacity hour, can suitably reduce the number of the pincerlike assembly in unit.
Contact pressure is big when 3, matching with external contact knife, contact resistance is little
When external contact knife moves upward the pincerlike contact of insertion, two row's fingertips will open to both sides along the curved arrow direction.The pressure of extension spring compresses the contact-making surface of external contact arm and external contact knife the two ends of fingertip simultaneously.
During work, electric current passes through external contact knife, pincerlike contact, and external contact arm forms path.
When external contact knife withdrawed from pincerlike contact, power supply was disconnected.
Description of drawings
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are respectively front view, left view, vertical view and the rearviews of moving contact component.
Fig. 5, Fig. 6, Fig. 7 are respectively front view, left view and the vertical views of movable touch knife shown in Figure 1.
Fig. 8, Fig. 9 are respectively the front view and the left views of soft connection component shown in Figure 1.
Figure 10, Figure 11 are respectively the front view and the vertical views of first kind of insulator shown in Figure 2.
Figure 12, Figure 13 are respectively the front view and the vertical views of second kind of insulator shown in Figure 2.
Figure 14 is the front view of insulation rotating shaft shown in Figure 3.
Figure 15, Figure 16, Figure 17 are respectively front view, left view and the vertical views of terminal block shown in Figure 1.
Figure 18, Figure 19 are respectively the front view and the left views of conductive plate shown in Figure 1.
Figure 20, Figure 21, Figure 22 are respectively front view, left view and the vertical views of fixed contact assembly (being pincerlike contact).
Figure 23, Figure 24 are respectively the front view and the left views of right fingertip shown in Figure 21 (with left fingertip symmetry).
Figure 25, Figure 26 are respectively the front view and the vertical views of copper sheathing shown in Figure 22.
Figure 27, Figure 28, Figure 29 are respectively front view, the Left elevation and bottom views of contact knife clamping plate shown in Figure 21.
Figure 30 is the front view of locking bar shown in Figure 22.
Figure 31 is the front view of I-shaped plate shown in Figure 20.
Figure 32 is the front view of straight pin shown in Figure 20.
Figure 33, Figure 34 are respectively the front view and the vertical views of external contact arm shown in Figure 21.
Figure 35 is the front view of this isolating switch body.
Embodiment
Among Fig. 1～Fig. 4,103, bolt; 104, packing ring; 105, spring washer; 107, pin; 109, pin; 110, copper sheathing; 111, packing ring; 112, back-up ring; 113, bolt; 114, packing ring; 115, spring washer; 116, insulator; 117, bolt; 118, insulator; 119, back-up ring; 120, insulator.
The present invention is useful in rated voltage DC1800V, rated current 4000A.
The present invention by movable touch knife, be flexible coupling, parts such as terminal block, insulation rotating shaft and insulator form.Fig. 1～Fig. 4 illustrates this isolating switch movable touch knife mechanism: be installed in the movable touch knife 101 in the rotating shaft, terminal block 106 is " T " font; Movable touch knife 101 is welded on forms the movable touch knife parts on the conductive plate 121; 102 two ends superimposed by multilayer bar shaped copper sheet and that be bent into " U " font that are flexible coupling are separately fixed on the gusset piece and constitute; Two left and right being symmetrical set that are flexible coupling: the gusset piece at each two ends that are flexible coupling is respectively between the conductive plate and terminal block that are bolted to the movable touch knife assembly.Being flexible coupling has silver coating on 102 the copper sheet, on the movable touch knife 101 silver coating is arranged.102 the copper sheet of being flexible coupling is 100 layers, every layer of copper sheet thickness 0.1mm, and the length of every layer of copper sheet * wide is 120mm * 60mm (referring to Fig. 8, Fig. 9).Movable touch knife 101 is installed in the insulation rotating shaft 108.
Figure 20, Figure 21, Figure 22 illustrate the pincerlike contact of this isolating switch: be fixed with two locking bars on two cant boards of the contact knife clamping plate 201 of channel steel shape; Hang with the pincerlike assembly in a plurality of unit on these two locking bars successively rotationally, hang with worker's shape plate 203 on two locking bars between the pincerlike assembly in adjacent two unit; The pincerlike modular construction of said units is: two left fingertips 209 are overlapping and hang on the locking bar; Overlapping and hang on another root locking bar with the right fingertip of two of left fingertip symmetry 210; In the pit in the outside, two left fingertip middle and upper parts a straight pin 202 is arranged; In the pit in the outside, two right fingertip middle and upper parts another straight pin is arranged, an extension spring 206 hangs over (referring to Figure 32, there is an annular groove at the straight pin middle part) on the annular groove in the middle part of above-mentioned two straight pins.Referring to Figure 30, two locking bars are erected at respectively on the hole of two cant boards of contact knife clamping plate 201, and the outer end of two locking bars is fixing through back-up ring 207.Referring to Figure 33, Figure 34, through screw external contact arm 208 is arranged between two cant boards of contact knife clamping plate 201, external contact arm is provided with wiring hole.The end of every locking bar 204 all is with a copper sheathing 205 (referring to Figure 25, Figure 26) in the contact knife clamping plate.During use, external contact arm is screwed on the contact knife clamping plate.Rated voltage DC1800V of the present invention, rated current 4000A.
Also can adopt following technical proposals: two rotatable being arranged on two cant boards of contact knife clamping plate of locking bar, simultaneously, the pincerlike assembly in unit then is fixed on the locking bar.
Figure 35 illustrates, and the isolating switch body is made up of parts such as moving contact component, fixed contact assembly, dihedral insulator and external contact arms.The fixed contact assembly is fixed by bolts on the external contact arm, and external contact arm is fixed on the mounting panel (not drawing in the sketch map) through insulator and dihedral insulator.
When isolating switch closes a floodgate, the terminal block of electric current through the movable touch knife assembly, be flexible coupling, movable touch knife and fixed contact assembly, external contact arm form path.When the isolating switch separating brake, the movable touch knife of moving contact component breaks off, and current path is cut off.
Claims (6)
1. track traffic isolating switch body; Form by moving contact component and fixed contact assembly; It is characterized in that; Said moving contact component structure is: movable touch knife (101) is installed in the rotating shaft, is welded with conductive plate (121) on the movable touch knife, and be flexible coupling (102) two ends superimposed by multilayer bar shaped copper sheet and that be bent into " U " font are separately fixed on the gusset piece and constitute; Two left and right being symmetrical set that are flexible coupling: the gusset piece at each two ends that are flexible coupling is respectively between the terminal block (106) of the conductive plate (121) that is bolted to the movable touch knife assembly and " T " font;
Said fixed contact modular construction is: be fixed with two locking bars on two cant boards of the contact knife clamping plate (201) of channel steel shape; Hang with the pincerlike member in a plurality of unit on these two locking bars successively, hang with worker's shape plate (203) on two locking bars between the pincerlike member in adjacent two unit; The pincerlike element structure of said units is: two left fingertips (209) are overlapping and hang on the locking bar; Overlapping and hang on another root locking bar with two right fingertips (210) of left fingertip symmetry; In the pit in the outside, two left fingertip middle and upper parts a straight pin (202) is arranged; In the pit in the outside, two right fingertip middle and upper parts another straight pin is arranged, an extension spring (206) hangs on the annular groove at above-mentioned two straight pins middle part.
2. track traffic isolating switch body according to claim 1 is characterized in that the copper sheet of said be flexible coupling (102) is 100 layers, and every layer of copper sheet thickness is 0.1mm, and the length of every layer of copper sheet * wide is 120mm * 60mm.
3. track traffic isolating switch body according to claim 2 is characterized in that, on the copper sheet of said be flexible coupling (102) silver coating is arranged, and movable touch knife has silver coating on (101).
4. track traffic isolating switch body according to claim 3 is characterized in that, said movable touch knife (101) is installed in the insulation rotating shaft (108).
5. track traffic isolating switch body according to claim 4 is characterized in that, said two locking bars are erected at respectively on the hole of two cant boards of contact knife clamping plate (201), and the outer end of two locking bars is fixing through back-up ring (207).
6. track traffic isolating switch body according to claim 5 is characterized in that, through screw external contact arm (208) is arranged between two cant boards of said contact knife clamping plate (201), and external contact arm is provided with wiring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029830.8A CN102543549B (en) | 2012-02-10 | 2012-02-10 | Isolating switch body of railway traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029830.8A CN102543549B (en) | 2012-02-10 | 2012-02-10 | Isolating switch body of railway traffic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102543549A true CN102543549A (en) | 2012-07-04 |
| CN102543549B CN102543549B (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210029830.8A Active CN102543549B (en) | 2012-02-10 | 2012-02-10 | Isolating switch body of railway traffic |
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| Country | Link |
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| CN (1) | CN102543549B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390305A (en) * | 2015-12-28 | 2016-03-09 | 北京合纵科技股份有限公司 | Electrical connection structure of moving contact of disconnector |
| CN109564831A (en) * | 2016-08-03 | 2019-04-02 | 西门子股份公司 | Contact arm and its application for open side type disconnecting switch |
| WO2019196026A1 (en) * | 2018-04-11 | 2019-10-17 | Abb Schweiz Ag | Flexible conductor for disconnector and the disconnector thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209217A (en) * | 1983-05-12 | 1984-11-27 | 日新電機株式会社 | Contactor unit |
| JPS63141217A (en) * | 1986-12-03 | 1988-06-13 | 川崎電気株式会社 | Contact apparatus for electric appliance |
| CN102231335A (en) * | 2011-06-03 | 2011-11-02 | 闫淼江 | Positive contactor of disconnecting switch and fracture component |
| CN202473706U (en) * | 2012-02-10 | 2012-10-03 | 成都中工电气工程有限公司 | A disconnector body of rail transit |
-
2012
- 2012-02-10 CN CN201210029830.8A patent/CN102543549B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209217A (en) * | 1983-05-12 | 1984-11-27 | 日新電機株式会社 | Contactor unit |
| JPS63141217A (en) * | 1986-12-03 | 1988-06-13 | 川崎電気株式会社 | Contact apparatus for electric appliance |
| CN102231335A (en) * | 2011-06-03 | 2011-11-02 | 闫淼江 | Positive contactor of disconnecting switch and fracture component |
| CN202473706U (en) * | 2012-02-10 | 2012-10-03 | 成都中工电气工程有限公司 | A disconnector body of rail transit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390305A (en) * | 2015-12-28 | 2016-03-09 | 北京合纵科技股份有限公司 | Electrical connection structure of moving contact of disconnector |
| CN109564831A (en) * | 2016-08-03 | 2019-04-02 | 西门子股份公司 | Contact arm and its application for open side type disconnecting switch |
| WO2019196026A1 (en) * | 2018-04-11 | 2019-10-17 | Abb Schweiz Ag | Flexible conductor for disconnector and the disconnector thereof |
| CN111971772A (en) * | 2018-04-11 | 2020-11-20 | Abb电网瑞士股份公司 | Flexible conductor for isolating switch and isolating switch |
| US10991519B2 (en) | 2018-04-11 | 2021-04-27 | Abb Power Grids Switzerland Ag | Flexible conductor for disconnector and the disconnector thereof |
| CN111971772B (en) * | 2018-04-11 | 2023-04-11 | 日立能源瑞士股份公司 | Flexible conductor for isolating switch and isolating switch |
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| Publication number | Publication date |
|---|---|
| CN102543549B (en) | 2014-01-29 |
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