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1.发明公开Extension device for telescopic booms of hydraulic cranes 审中-公开Vorrichtung zur Ausschiebung des Teleskopmastes eines hydraulischen Krans
公开(公告)号：EP1270494A1
公开(公告)日：2003-01-02
申请号：EP02013063.9
申请日：2002-06-13
IPC分类号： B66C23/693 , F15B15/14 , F15B11/20
CPC分类号： F15B15/149 , B66C23/54 , B66C23/705 , F15B11/205 , F15B15/1457
摘要： The boom (7) of a truck-mounted crane comprises several telescopically slidable sections which are extended and collapsed by hydraulic jacks (13). Pressurized fluid is supplied to the jacks through extension and collapse transfer conduits (14, 15) bored or received inside the rods (18) of the jacks. The extension transfer conduits (14) are intercepted by valves (19) located on the heads of the jack pistons and mechanically operated by the bottoms of the cylinders of the jacks through tappets (21). The collapse transfer conduits (15) are provided with draining means comprising respective offtakes (17a) controlled by switches (24) that are mechanically operated by fingers (25) on the rods of the upstream-adjacent jacks, respectively.
摘要翻译： 卡车起重机的起重臂（7）包括由液压千斤顶（13）延伸和折叠的几个可伸缩滑动部分。 加压流体通过钻孔或接收在千斤顶的杆（18）内部的延伸和折叠传送管道（14,15）供应到千斤顶。 延伸传送管道（14）被位于千斤顶活塞头部上的阀（19）截取并且通过挺杆（21）由千斤顶的气缸的底部机械操作。 塌陷传送管道（15）设置有排水装置，排水装置包括分别通过开关（24）控制的相应的卸料装置（17a），所述排出装置分别由上游相邻千斤顶的杆上的手指（25）机械操作。
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2.发明公开Crane with a winch and a traction control device 有权Kran mit einer Seilwinde und mit einer Zugsteuereinrichtung
公开(公告)号：EP1491485A1
公开(公告)日：2004-12-29
申请号：EP03425403.7
申请日：2003-06-23
CPC分类号： B66D1/58 , B66C23/905
摘要： The device is applied to a crane having a tower (1) to which a main boom (1a, 1b) is connected, and one or more hydraulic extendable sections (2, 3, 4, 5) moved by hydraulic actuators (2a, 3a, 4a, 5a), and a winch (10) on which a cable (11) is wound, the cable (11) having a hook (12) connected to an end. The winch (10) is solidly constrained to a frame (13) which can make small movements with respect to the crane structure. The movements are opposed by means for detecting, of known type, which generate a signal that is proportional to stresses generated on the cable (11) and which commands activation of actuators operating movements of the boom and sections of the crane.
摘要翻译： 该装置具有与与起重机的结构轻微连接的框架（13）牢固地关联的绞盘（10）。 称重传感器检测框架与起重机结构之间的对抗运动。 称重传感器提供与电缆（11）上产生的应力成正比的命令信号。 指令信号指示液压致动器（2a，3a，4a，5a）的启动操作主动臂（1a，1b）的运动。
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