EMERGENCY OPERATING VALVE BLOCK FOR MOBILE CRANES

To provide an emergency operating valve block.SOLUTION: An emergency operating valve block (1) comprises a drive port (2) for hydraulically connecting a valve block to an emergency drive of a mobile crane, at least two drive mechanism ports (3A, 3B, and 3C) each hydraulically connecting the valve bl...

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Bibliographische Detailangaben
Hauptverfasser:	VERENA POHMANN, HARALD WIESNER, JOHANNES SCHUERMANN, THOMAS SCHMITHUESEN
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING CRANES DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HAULING HEATING HOISTING HYDRAULICS OR PNEUMATICS IN GENERAL LIFTING LIGHTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES MECHANICAL ENGINEERING PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	To provide an emergency operating valve block.SOLUTION: An emergency operating valve block (1) comprises a drive port (2) for hydraulically connecting a valve block to an emergency drive of a mobile crane, at least two drive mechanism ports (3A, 3B, and 3C) each hydraulically connecting the valve block to one drive of the mobile crane, at least two closure valves (4A, 4B, and 4C) assigned to one of the drive mechanism ports, respectively, and designed to selectively open or close the hydraulic connection between the drive ports and the drive mechanism port respectively assigned to the drive ports, and an actuation valve (5) designed to selectively reverse the hydraulic connection between a pressure side (2A) and a return side (2B) of the drive ports and the corresponding side of the drive mechanism ports. The present invention relates to a mobile crane equipped with the emergency operating valve block.SELECTED DRAWING: Figure 1 【課題】非常動作バルブブロックを提供する。【解決手段】非常動作バルブブロック（１）は、バルブブロックを移動式クレーンの非常駆動部に液圧接続する駆動ポート（２）と、バルブブロックを移動式クレーンの１つの駆動機構にそれぞれ液圧接続する少なくとも２つの駆動機構ポート（３Ａ，３Ｂ，３Ｃ）と、駆動機構ポートの１つにそれぞれ割り当てられ、前記駆動ポートと当該駆動ポートにそれぞれ割り当てられた前記駆動機構ポートとの間の液圧接続を選択的に開放又は閉鎖するように設計された少なくとも２つの閉鎖バルブ（４Ａ，４Ｂ，４Ｃ）と、駆動ポートの圧力側（２Ａ）及び戻り側（２Ｂ）と、駆動機構ポートの対応する側との間の液圧接続を選択的に逆転させるように設計された作動バルブ（５）とを備える。また、本発明は、当該非常動作バルブブロックを備える移動式クレーンに関する。【選択図】図１