5 results about "Pantograph" patented technology

The invention discloses a subway train voltage fluctuation prevention device. The voltage fluctuation prevention device comprises a voltage transformer 1, a voltage detection module 2, a memristor control module 3, a memristor driving module 4 and a memristor Rm. When the voltage of the pantograph passes through the main transformer, the input voltage is changed, the voltage transformer 1 convertsa voltage signal into a numerical signal through the voltage detection module 2 and sends the numerical signal to the memristor control module 3, and the memristor control module 3 changes the memristor value of the memristor Rm through the memristor driving module 4, so that the stability of the input voltage is realized. The subway train voltage fluctuation prevention device provided can effectively solve the problem of voltage fluctuation existing in contact network power supply, improve the running stability of the subway train and improve the riding comfort of a subway.

The invention relates to the application field of a graphene material, particularly relates to a graphene reinforcing glass fiber, and especially relates to a graphene reinforcing glass fiber for a pantograph slide plate and a preparation method of the graphene reinforcing glass. The graphene reinforcing glass is characterized in that graphene is embedded in a surface micro-crack of a glass fiber in radial direction; metal powder is melted at top speed through high-energy laser beam or electronic beam scanning, so that graphene is firmly welded with a releasing glass fiber; thus the graphene is not easy to isolate from the glass fiber, and the reinforcing effect of the graphene can be displayed for a long time. The graphene reinforcing glass fiber is an ideal pantograph slide plate material for its high strength, high flexibility, high modulus, high-wearing feature, high conductivity, antiwear property, acid-base resistance property, light weight, and other properties.

The invention discloses a pantograph carbon contact strip main carbon strip structure preparation method. The method includes the steps that carbon powder is mixed with a bituminous material evenly and pressed, so that a main carbon strip is obtained; and the main carbon strip is fixedly arranged on an aluminum carrier in an adhesive mode. The method is characterized in that after being formed, the main carbon strip is placed in engine oil, and after the engine oil is boiled, the main carbon strip stays in the engine oil for 48 to 72 hours with the temperature kept between 65 DEG C and 85 DEGC. The method has the beneficial effects that the work friction resistance of the main carbon strip can be reduced, the anti-cracking capacity is improved, the electric conductive performance of the main carbon strip can be improved, the process is simple, machining is convenient, quick and safe, and the product quality is stable and reliable.

The invention relates to an abrasion detection method and system for a track inspection rigid contact network, and the method comprises the steps: S1, obtaining an image of a contact line in the rigid contact network and first related data corresponding to the image, and obtaining a corresponding first rigid contact network abrasion index based on the first related data; the first relevant data corresponding to the image comprises the existing times of the contact line passing through the pantograph at the moment of shooting the image, the temperature of the contact line, the current between the pantograph and the contact line, the running speed of the subway, the contact pressure between the contact line and the pantograph and the longitudinal jerk of running of the subway; lateral acceleration in the subway car; and S2, judging whether the first rigid contact network abrasion index is higher than a preset second rigid contact network abrasion index B or not, and if so, performing abrasion detection on an image of the contact line corresponding to the first rigid contact network abrasion index to obtain the abrasion loss of the contact line in the image.