CN102543549B - Isolating switch body of railway traffic - Google Patents
Isolating switch body of railway traffic Download PDFInfo
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- CN102543549B CN102543549B CN201210029830.8A CN201210029830A CN102543549B CN 102543549 B CN102543549 B CN 102543549B CN 201210029830 A CN201210029830 A CN 201210029830A CN 102543549 B CN102543549 B CN 102543549B
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- isolating switch
- switch body
- contact
- knife
- railway traffic
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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 subway power supply circuit, rated voltage DC1800V, the isolating switch of rated current 4000A.
Background technology
Chinese patent literature discloses a kind of " the two guidance contacts devices of major diameter for large direct-current isolating switch ", and (201110221952.2) its moving contact is the good loop configuration of a major diameter conductivity, and fixed contact is comprised of inside and outside two circle fingertips.After combined floodgate, electrically contact more reliably, through-current capability is larger.Its shortcoming is, one, and the combined floodgate of moving contact and fixed contact can only be translation mode rather than moving contact rotating manner, for motor power, power drive mechanism is more complicated, energy consumption is larger.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 due to loop configuration reason, still exists and electrically contacts a problem for reliability shortcoming.And the movable touch knife of existing isolating switch (as 201020617511.5) is all contained in rotating shaft.Hinged or be directly hinged on free bearing between rotating shaft and 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 object of this invention is to provide a kind of static contact component inlay resultant force balanced, be convenient to regulate length to adapt to load variations, large, the good heat dissipation of contact area between movable touch knife and terminal block in moving contact component, isolating switch body of railway traffic that through-current capability is large simultaneously.
The object of the present invention is achieved like this: a kind of isolating switch body of railway traffic, by moving contact component and static contact component, formed, described moving contact component structure is: movable touch knife is arranged in rotating shaft, on movable touch knife, be welded with conductive plate, 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 a gusset piece and form; Two left and right being symmetrical arranged that are flexible coupling: the gusset piece at each two ends that are flexible coupling is respectively on the conductive plate through being bolted to movable touch knife assembly and on the terminal block of " T " font;
Described static contact component structure is: on two cant boards of the contact knife clamping plate of channel steel shape, be fixed with two locking bars, hang with successively the pincerlike member in a plurality of unit on these two locking bars, on two locking bars between the pincerlike member in adjacent two unit, hang with a work shape plate; The pincerlike element structure of said units is: two left fingertips are overlapping and hang on a locking bar, overlapping and hang on another root locking bar with two right fingertips of left fingertip symmetry, in the pit in outside, two left fingertip middle and upper parts, there is a straight pin, in the pit in outside, two right fingertip middle and upper parts, have another straight pin, an extension spring hangs on the annular groove at above-mentioned two straight pins middle part.
The above-mentioned copper sheet being 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 being flexible coupling, there is silver coating, on movable touch knife, have silver coating.
Above-mentioned movable touch knife is arranged in 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.
Between two cant boards of above-mentioned contact knife clamping plate, through screw, be fixed with external contact arm, on external contact arm, be provided with wiring hole.
When movable touch knife inserts pincerlike contact, electric current by pincerlike contact, movable touch knife and double loop be flexible coupling, terminal block forms path.Employing double loop is flexible coupling, and is the needs that met heat radiation, electric life and the mechanical endurance of moving part conductor when movable touch knife rotates.This isolating switch body, as on GGN-15/4000 track traffic isolating switch, detects institute in July, 2011 in Zunyi product quality inspection and has passed through type approval test.
Compared with prior art, the present invention has following characteristics:
1, for the movable touch knife of existing isolating switch in the little shortcoming of poor electric contact, the through-current capability of its hinged place, between movable touch knife of the present invention and terminal block, by soft multilayer build-up copper sheet, by bolt crimping mode, be connected, thereby, there is contact area large, contact site pressure is large, contact resistance is less, the feature that through-current capability is larger.Meanwhile, the double loop of multilayer build-up copper sheet is flexible coupling for existing articulated structure, has advantages of that heat-sinking capability is strong, longer service life.
2, for convenience detach, assembling, strong adaptability
When current capacity is large, 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.
While 3, matching with external contact knife, contact is large, 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 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 exits pincerlike contact, power supply is disconnected.
Accompanying drawing explanation
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 Fig. 1.
Fig. 8, Fig. 9 are respectively front view and the left views of soft connection component shown in Fig. 1.
Figure 10, Figure 11 are respectively front view and the vertical views of the insulator of the first shown in Fig. 2.
Figure 12, Figure 13 are respectively front view and the vertical views of the insulator of the second shown in Fig. 2.
Figure 14 is the front view of rotating shaft of insulating shown in Fig. 3.
Figure 15, Figure 16, Figure 17 are respectively front view, left view and the vertical views of terminal block shown in Fig. 1.
Figure 18, Figure 19 are respectively front view and the left views of conductive plate shown in Fig. 1.
Figure 20, Figure 21, Figure 22 are respectively front view, left view and the vertical views of static contact component (being pincerlike contact).
Figure 23, Figure 24 are respectively front view and the left views of right fingertip shown in Figure 21 (symmetrical with left fingertip).
Figure 25, Figure 26 are respectively 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 the clamping plate of contact knife shown in Figure 21.
Figure 30 is the front view of locking bar shown in Figure 22.
Figure 31 is the front view of the plate of I-shaped shown in Figure 20.
Figure 32 is the front view of straight pin shown in Figure 20.
Figure 33, Figure 34 are respectively 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
In 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, the parts such as terminal block, insulation rotating shaft and insulator form.Fig. 1～Fig. 4 illustrates this isolating switch movable touch knife mechanism: be arranged on the movable touch knife 101 in rotating shaft, terminal block 106 is " T " font; Movable touch knife 101 is welded on and on conductive plate 121, forms movable touch knife parts; 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 a gusset piece and form; Two left and right being symmetrical arranged that are flexible coupling: the gusset piece at each two ends that are flexible coupling is respectively through being bolted between the conductive plate and terminal block of movable touch knife assembly.Be flexible coupling on 102 copper sheet and have silver coating, on movable touch knife 101, have silver coating.102 the copper sheet of being flexible coupling is 100 layers, every layer of copper sheet thickness 0.1mm, the length of every layer of copper sheet * wide is that 120mm * 60mm(is referring to Fig. 8, Fig. 9).Movable touch knife 101 is arranged in insulation rotating shaft 108.
Figure 20, Figure 21, Figure 22 illustrate the pincerlike contact of this isolating switch: on two cant boards of the contact knife clamping plate 201 of channel steel shape, be fixed with two locking bars, on these two locking bars, hang with rotationally successively the pincerlike assembly in a plurality of unit, on two locking bars between the pincerlike assembly in adjacent two unit, hang with a work shape plate 203; The pincerlike modular construction of said units is: two left fingertips 209 are overlapping and hang on a locking bar, overlapping and hang on another root locking bar with two right fingertips 210 of left fingertip symmetry, in the pit in outside, two left fingertip middle and upper parts, there is a straight pin 202, in the pit in outside, two right fingertip middle and upper parts, there is another straight pin, an extension spring 206 hangs over (referring to Figure 32, there is an annular groove at 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, between two cant boards of contact knife clamping plate 201, through screw, be fixed with external contact arm 208, on external contact arm, be provided with wiring hole.In contact knife clamping plate, the end of every locking bar 204 is all overlapped and is had a copper sheathing 205(referring to Figure 25, Figure 26).During use, external contact arm is screwed on contact knife clamping plate.Rated voltage DC1800V of the present invention, rated current 4000A.
Also can adopt following technical proposals: two locking bars are rotatably arranged on two cant boards of contact knife clamping plate, meanwhile, the pincerlike assembly in unit is fixed on locking bar.
Figure 35 illustrates, and isolating switch body is comprised of parts such as moving contact component, static contact component, dihedral insulator and external contact arms.Static contact component is fixed by bolts on external contact arm, and external contact arm is fixed on mounting panel (illustrating not shown in FIG.) by insulator and dihedral insulator.
When isolating switch closes a floodgate, the terminal block of electric current by movable touch knife assembly, be flexible coupling, movable touch knife and static contact component, external contact arm form path.When isolating switch separating brake, the movable touch knife of moving contact component disconnects, and current path is cut off.
Claims (6)
1. an isolating switch body of railway traffic, by moving contact component and static contact component, formed, it is characterized in that, described moving contact component structure is: movable touch knife (101) is arranged in rotating shaft, on movable touch knife, be welded with conductive plate (121), be flexible coupling (102) two ends superimposed by multilayer bar shaped copper sheet and that be bent into " U " font are separately fixed on a gusset piece and form; Two left and right being symmetrical arranged that are flexible coupling: the gusset piece at each two ends that are flexible coupling is respectively through being bolted on the terminal block (106) of upper and " T " font of the conductive plate (121) of movable touch knife assembly;
Described static contact component structure is: on two cant boards of the contact knife clamping plate (201) of channel steel shape, be fixed with two locking bars, on these two locking bars, hang with successively the pincerlike member in a plurality of unit, on two locking bars between the pincerlike member in adjacent two unit, hang with a work shape plate (203); The pincerlike element structure of said units is: two left fingertips (209) are overlapping and hang on a locking bar, overlapping and hang on another root locking bar with two right fingertips (210) of left fingertip symmetry, in the pit in outside, two left fingertip middle and upper parts, there is a straight pin (202), in the pit in outside, two right fingertip middle and upper parts, have another straight pin, an extension spring (206) hangs on the annular groove at above-mentioned two straight pins middle part.
2. isolating switch body of railway traffic according to claim 1, is characterized in that, described in the be flexible coupling copper sheet of (102) be 100 layers, every layer of copper sheet thickness is 0.1mm, the length of every layer of copper sheet * wide is 120mm * 60mm.
3. isolating switch body of railway traffic according to claim 2, is characterized in that, described in be flexible coupling on the copper sheet of (102) and have silver coating, movable touch knife has silver coating on (101).
4. isolating switch body of railway traffic according to claim 3, is characterized in that, described movable touch knife (101) is arranged in insulation rotating shaft (108).
5. isolating switch body of railway traffic according to claim 4, is characterized in that, described 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. isolating switch body of railway traffic according to claim 5, is characterized in that, between two cant boards of described contact knife clamping plate (201), through screw, is fixed with external contact arm (208), on 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 |
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| Publication Number | Publication Date |
|---|---|
| CN102543549A CN102543549A (en) | 2012-07-04 |
| CN102543549B true CN102543549B (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210029830.8A Active CN102543549B (en) | 2012-02-10 | 2012-02-10 | Isolating switch body of railway traffic |
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Families Citing this family (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 |
| DE102016214372B4 (en) * | 2016-08-03 | 2020-01-09 | Siemens Aktiengesellschaft | Contact arm for single column disconnector and its use |
| EP3776619B1 (en) * | 2018-04-11 | 2022-07-27 | Hitachi Energy Switzerland AG | Flexible conductor for disconnector and the disconnector thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (2)
| 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 |
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2012
- 2012-02-10 CN CN201210029830.8A patent/CN102543549B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| JP昭59-209217A 1984.11.27 |
| JP昭63-141217A 1988.06.13 |
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| CN102543549A (en) | 2012-07-04 |
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