Pantograph structure

Abstract

The invention discloses a pantograph structure, and belongs to the technical field of electrified railway pantograph-contact network systems. The upper end of an upper arm rod is of a T-shaped structure, two ends of the T-shaped cross piece are respectively provided with an L-shaped sliding plate bracket respectively, the vertical arm of each L-shaped sliding plate bracket is hinged with the upperarm rod, the front end of the cross arm is provided with a vertical socket matched with a bottom mounting seat of the outer cylinder of a spring cylinder, and the vertical socket is fixed with the bottom mounting seat of the outer cylinder of the spring cylinder through bolts; the bottom mounting seat is provided with a central guide rod, and the upper end of the central guide rod is provided with a double-lug support seat fixed at the bottom; the bottom end of a secondary suspension spring is in contact with the bottom mounting seat, the upper end of the secondary suspension spring is fixedwith the lower end face of a matched mass block, the lower end face of a primary suspension spring is fixed with the upper end face of the matched mass block, coaxial through holes are formed in double lugs of the double-lug support seat, and the inner cylinder of the spring cylinder is fixed with the lower part of the double-lug support seat. The pantograph structure is mainly used for receivingcurrent of an electric drive train.

Description

technical field [0001] The invention belongs to the technical field of electrified railway pantograph-catenary systems. Background technique [0002] In high-speed electrified railways, the pantograph installed on the roof of the train and the catenary erected next to the track line realize the transmission of electric energy through sliding contact. The degree of vibration and shock of the system and the life of the pantograph frame structure have become the focus of attention in the pantograph-catenary field. The trunk line railway adopts flexible catenary, and its pantograph-catenary interaction performance is good, but as the train running speed increases, the vibration and impact of the pantograph-catenary system will intensify; the urban rail transit runs at a relatively low speed, and due to the characteristics of low voltage and high current, rigid catenary system is often used. The catenary has a relatively large impact during the dynamic operation of the pantograp...

AI Technical Summary

Problems solved by technology

However, the above-mentioned technologies are mostly limited to the original pantograph structure itself, and its optimization degree is small, and the boundary restriction conditions are gradually clear and even reach the bottleneck, which cannot fundamentally solve the problem of severe pantograph-catenary vibration

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