Hydraulic system of double-working-platform overhead working truck for road-railway dual purposes

The invention relates to the technical field of the hydraulic system and in particular to a hydraulic system of a double-working-platform overhead working truck for road-railway dual purposes. The double-working-platform overhead working truck for the road-railway dual purposes comprises a large tru...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG PENGFEI, HU XUANGE, LI YONGHUI, WU ZHANWEI, XU LIANG, ZHENG FENGCHUAN, GAO LIANG, DU JIANGUO, REN JIANFENG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to the technical field of the hydraulic system and in particular to a hydraulic system of a double-working-platform overhead working truck for road-railway dual purposes. The double-working-platform overhead working truck for the road-railway dual purposes comprises a large truck chassis, a small truck chassis, a first working platform and a second working platform. The hydraulic system comprises a hydraulic oil tank, a hydraulic pump system, a road-railway travel switching valve, a vehicle chassis switching control valve, a first working platform operating valve, a second working platform operating valve, a road drive motor for driving bull wheels to be rotated, a railway drive motor for driving railway wheels to be rotated, a road-railway switching oil cylinder and a double-working-platform actuator. The actuator comprises a first telescopic oil cylinder for controlling the first working platform, a first swing arm oil cylinder, a first rotation drive motor, a second telescopic oil cyl