CN103481898B - A kind of electric locomotive top insulating materials top cover and preparation method thereof - Google Patents
A kind of electric locomotive top insulating materials top cover and preparation method thereof Download PDFInfo
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- CN103481898B CN103481898B CN201310477733.XA CN201310477733A CN103481898B CN 103481898 B CN103481898 B CN 103481898B CN 201310477733 A CN201310477733 A CN 201310477733A CN 103481898 B CN103481898 B CN 103481898B
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Abstract
The invention discloses one and state electric locomotive top insulating materials top cover, it comprises being arranged on installs pantograph region and insulating materials composite bed around thereof, and pantograph mount pad is embedded in insulation material layer; Described insulating materials composite bed periphery is inlaid with pad; Test voltage U2=94 ± the 5kV of the resistance to lightning impulse test voltage U of described insulating materials composite bed 1=243 ± 10kV, power frequency withstand test; Described insulating materials composite bed comprises insulating materials composite bed upper strata and the insulating materials composite bed lower floor of vacuum global formation. Good looking appearance of the present invention, total tune is good, conducts electricity very well with electric locomotive top metal top cover contact-making surface. Be fixed on electric locomotive top metal top cover, while making pantograph energising, eliminate static or the corona of insulating top cover below.
Description
Technical field
The invention belongs to technical field of vehicle manufacture, be specifically related to a kind of electric locomotive top insulating materials top cover and preparation method thereof.
Background technology
At present, be loaded on the top cover at electric locomotive top, in running, often there is the flashover phenomenon of roof, particularly, near pantograph support insulator, due to the restriction of height, and the top cover wedge angle of installation pantograph is more, often there is the phenomenon of roof high pressure to the electric discharge of top cover wedge angle, cause top cover by high-voltage electric injury, even punched, repair very difficult. The height of China's pantograph support insulator is 315mm and 400mm at present, is mainly the height that has limited contact net due to reasons such as tunnels, and the height of locomotive is restricted, and locomotive flashover fault often occurs. Once there is the accidents such as flashover, will directly cause contact net power failure, locomotive rescue, upset railway transportation order, cause tremendous economic loss. In highlands, because height above sea level is higher, according to the requirement of height above sea level correction, electric insulation is multiplied by corresponding height above sea level correction factor, the safe operation of guarantee locomotive apart from needs in addition. The top cover being mainly welded by skeleton and equipment mount pad under normal circumstances. The shortcoming of the cap structure being made by welding procedure is: casting coping insulating properties are not high, the easy climate impact in commissure easily produces oxidation, the phenomenon of getting rusty, cause top cover to occur drainage in the rainy day, when electric locomotive is on plateau, when the operation of the region that rainy, haze weather is common, insulating properties can obviously reduce. Thereby design a kind of electric locomotive top insulating materials top cover, and research and develop a kind of technique of preparing this kind of insulating top cover and seem of far-reaching significance.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, and a kind of electric locomotive top insulating materials top cover and preparation method thereof is provided.
In order to achieve the above object, technical scheme provided by the invention is:
Described electric locomotive top insulating materials top cover comprises being arranged on installs pantograph region and insulating materials composite bed around thereof, and pantograph mount pad is embedded in insulation material layer; Described insulating materials composite bed periphery is inlaid with pad; Test voltage U2=94 ± the 5kV of the resistance to lightning impulse test voltage U of described insulating materials composite bed 1=243 ± 10kV, power frequency withstand test; Described insulating materials composite bed comprises insulating materials composite bed upper strata and the insulating materials composite bed lower floor of vacuum global formation.
Preferably, the test voltage U2=94kV of the resistance to lightning impulse test voltage U of described insulating materials composite bed 1=243kV, power frequency withstand test.
Described pantograph mount pad upper surface, higher than insulating materials composite bed upper surface 10 ± 0.5mm, is preferably 10mm.
Described insulating materials composite bed (insulating effect) thickness is 15+0.5mm, is preferably 15mm.
On described insulating materials composite bed, the diameter of the position corresponding with pantograph mount pad profile is 418+0.5mm, is preferably 418mm.
The mount pad of described pantograph is No. 45 steel.
The method of above-mentioned insulating materials top cover comprises the steps:
(1) by insulating materials-0.1+Under the vacuum technology condition of 0.05MPa, carry out global formation, form insulating materials composite bed upper strata;
(2) pantograph mount pad and pad are bonded to the bottom surface on insulating materials composite bed upper strata by bonding agent;
(3) adhere to insulating materials in the bottom surface on the insulating materials composite bed upper strata of processing through step (2), and-0.1+Under the vacuum technology condition of 0.05MPa, carry out global formation for the second time, form and there is upper and lower two-layer insulating materials composite bed.
Below in conjunction with design principle, the invention will be further described:
First, go out to meet by computer Simulation calculation the insulation material layer that insulating properties require; Carry out the checking of laying thickness and dielectric test checking by test again; Then insulating materials is carried out to global formation by vacuum technology, form insulation material layer upper strata; Mount pad and pad that pantograph is installed are bonded to insulating materials composite bed upper layer undersurface by bonding agent, ensure that binding agent smears evenly and the gap of mount pad and pad and insulating materials interlayer is filled up, this is most critical, the effect of pad is the insulating materials intensity of top cap of strengthening installing hole place, insulating materials top cover cracking while avoiding installing; Insulating materials is attached to through the bottom surface on the insulating materials composite bed upper strata of aforementioned step process, and carries out global formation by vacuum technology, form and there is upper and lower two-layer insulating materials composite bed. After processing finally by paint, can reach product technology requirement completely. That is, insulating materials top cover of the present invention is that insulation material layer is carried out to global formation at twice, by bonding agent is bonding, mount pad and pad that pantograph is installed is embedded in to the composite construction forming between two layers of insulation material layer. Insulating materials composite bed is vacuum global formation, and its overall position is corresponding with the casting coping position at electric locomotive top. Test voltage U2=94 ± the 5kV of the resistance to lightning impulse test voltage U of insulating materials composite bed 1=243 ± 10kV, power frequency withstand test. This performance has met electric locomotive on plateau, when the operation of rainy, haze weather is common region, ensures the safe operation of locomotive.
In the present invention, pantograph mount pad upper surface, higher than insulating materials composite bed upper surface 10 ± 0.5mm, is the flatness in order to ensure pantograph installed surface.
Described insulating materials composite bed (insulating effect) thickness is 15+0.5mm is the performance of the test voltage in order to ensure the voltage of resistance to lightning impulse test, power frequency withstand test.
On described insulating materials composite bed, the diameter of the position corresponding with pantograph mount pad profile is 418+0.5mm is not interfere phenomenon when ensureing that insulating materials top cover is installed on casting coping.
Critical technological point of the present invention is global formation and insulation material layer and the mount pad of installation pantograph and the composite molding of pad of insulation material layer, should ensure insulating properties and the intensity of insulation material layer, prevent from again installing the mount pad of pantograph and peeling off and sealing of pad and insulation material layer, the present invention adopts vacuum technology+adhesive technology just, has ensured insulating properties and the intensity of insulation material layer and the mount pad of pantograph and combined strength bination and the sealing of pad and insulation material layer are installed. Product of the present invention meets design and actual performance requirement, can realize processing without dropping into large-scale tooling device, easily operates moulding, reach insulating effect completely, meanwhile, good looking appearance after paint is processed, total tune is good, conducts electricity very well with electric locomotive top metal top cover contact-making surface. Be fixed on electric locomotive top metal top cover, while making pantograph energising, eliminate static or the corona (this performance is to meet by brushing conduction enamelled coating on the contact-making surface at insulating top cover and casting coping) of insulating top cover below.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2, Fig. 3 are structural representations when in the present invention prepared by insulating materials top cover;
Fig. 4 is the structural representation that in the present invention prepared by insulating materials top cover, is also the A-A profile of Fig. 1.
In figure: 1, insulating materials composite bed; 2, pantograph mount pad; 3, pad; 4, insulating materials composite bed upper strata; 5, insulating materials composite bed lower floor.
Detailed description of the invention
Embodiment 1
Referring to Fig. 1,4, described electric locomotive top insulating materials top cover comprises being arranged on installs pantograph region and insulating materials composite bed 1 around thereof, and pantograph mount pad 2 is embedded in insulation material layer; Described insulating materials composite bed 1 periphery is inlaid with pad 3; The test voltage U2=94kV of the resistance to lightning impulse test voltage U of described insulating materials composite bed 1 1=243kV, power frequency withstand test; Described insulating materials composite bed 1 comprises insulating materials composite bed upper strata 4 and the insulating materials composite bed lower floor 5 of vacuum global formation.
Wherein, described pantograph mount pad 2 upper surfaces are higher than insulating materials composite bed 1 upper surface 10mm.
Described insulating materials composite bed 1 thickness is 15mm.
On described insulating materials composite bed 1, the diameter of the position corresponding with pantograph mount pad 2 profiles is 418mm.
The mount pad of described pantograph is No. 45 steel.
Embodiment 2
Referring to Fig. 2, Fig. 3 and Fig. 4, the method for insulating materials top cover, is characterized in that described in embodiment 1, and described method comprises the steps:
(1) by insulating materials-0.1+Under the vacuum technology condition of 0.05MPa, carry out global formation, form insulating materials composite bed upper strata;
(2) pantograph mount pad and pad are bonded to the bottom surface on insulating materials composite bed upper strata by bonding agent;
(3) adhere to insulating materials in the bottom surface on the insulating materials composite bed upper strata of processing through step (2), and-0.1+Under the vacuum technology condition of 0.05MPa, carry out global formation for the second time, form and there is upper and lower two-layer insulating materials composite bed.
Claims (9)
1. an electric locomotive top insulating materials top cover, it comprises being arranged on installs pantograph region and insulating materials composite bed (1) around thereof, pantograph mount pad (2) is embedded in insulating materials composite bed, it is characterized in that, described insulating materials composite bed (1) periphery is inlaid with pad (3); Test voltage U2=94 ± the 5kV of the resistance to lightning impulse test voltage U of described insulating materials composite bed (1) 1=243 ± 10kV, power frequency withstand test; Described insulating materials composite bed (1) comprises insulating materials composite bed upper strata (4) and the insulating materials composite bed lower floor (5) of vacuum global formation; Described insulating materials top cover makes as follows:
(1) by insulating materials-0.1+Under the vacuum technology condition of 0.05MPa, carry out global formation, form insulating materials composite bed upper strata (4);
(2) pantograph mount pad (2) and pad (3) are bonded to the bottom surface on insulating materials composite bed upper strata (4) by bonding agent;
(3) adhere to insulating materials in the bottom surface on the insulating materials composite bed upper strata (4) of processing through step (2), and-0.1+Under the vacuum technology condition of 0.05MPa, carry out global formation for the second time, form and there is upper and lower two-layer insulating materials composite bed (1).
2. insulating materials top cover as claimed in claim 1, is characterized in that, the test voltage U2=94kV of the resistance to lightning impulse test voltage U of described insulating materials composite bed (1) 1=243kV, power frequency withstand test.
3. insulating materials top cover as claimed in claim 1, is characterized in that, described pantograph mount pad (2) upper surface is higher than insulating materials composite bed (1) upper surface 10 ± 0.5mm.
4. insulating materials top cover as claimed in claim 3, is characterized in that, described pantograph mount pad (2) upper surface is higher than insulating materials composite bed (1) upper surface 10mm.
5. insulating materials top cover as claimed in claim 1, is characterized in that, described insulating materials composite bed (1) thickness is 15+0.5mm。
6. insulating materials top cover as claimed in claim 5, is characterized in that, described insulating materials composite bed (1) thickness is 15mm.
7. insulating materials top cover as claimed in claim 1, is characterized in that, the diameter of the upper position corresponding with pantograph mount pad (2) profile of described insulating materials composite bed (1) is 418+0.5mm。
8. insulating materials top cover as claimed in claim 7, is characterized in that, the diameter of the upper position corresponding with pantograph mount pad (2) profile of described insulating materials composite bed (1) is 418mm.
9. insulating materials top cover as claimed in claim 1, is characterized in that, described pantograph mount pad is No. 45 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310477733.XA CN103481898B (en) | 2013-10-14 | 2013-10-14 | A kind of electric locomotive top insulating materials top cover and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310477733.XA CN103481898B (en) | 2013-10-14 | 2013-10-14 | A kind of electric locomotive top insulating materials top cover and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103481898A CN103481898A (en) | 2014-01-01 |
| CN103481898B true CN103481898B (en) | 2016-05-25 |
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| CN201310477733.XA Active CN103481898B (en) | 2013-10-14 | 2013-10-14 | A kind of electric locomotive top insulating materials top cover and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110435431B (en) * | 2019-09-10 | 2021-06-04 | 中车株洲电力机车有限公司 | Rail transit vehicle and connecting assembly for connecting pantograph and vehicle roof thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2142222Y (en) * | 1992-11-07 | 1993-09-15 | 中山市和泰机电厂 | Resin former using for high-voltage mutual-inductor |
| FR2880604B1 (en) * | 2005-01-11 | 2007-04-20 | Alstom Transport Sa | RAILWAY VEHICLE WITH HIGH ROOF ROOFING EQUIPMENT |
| DE102011003637A1 (en) * | 2011-02-04 | 2012-08-09 | Siemens Aktiengesellschaft | Rail vehicle with pantograph fairing |
| CN102107663B (en) * | 2011-02-16 | 2012-10-31 | 南车株洲电力机车有限公司 | Top cover of electric locomotive |
| CN203496906U (en) * | 2013-10-14 | 2014-03-26 | 株洲电力机车广缘科技有限责任公司 | Insulation material top cover on top of electric locomotive |
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