The invention relates to an emergency operating valve group (1) comprising: a drive port (2) for hydraulically connecting the valve group (1) to an emergency drive of a mobile crane; at least two drive mechanism ports (3A, 3B, 3C) for hydraulically connecting the valve group (1) to a drive mechanism of the mobile crane; at least two shut-off valves (4A, 4B, 4C), each of which is associated with one of the drive interfaces (3A, 3B, 3C) and which are designed to selectively open or close a hydraulic connection between the drive interface (2) and the drive interface (3A, 3B, 3C) associated with each of the drive interfaces; and an actuation valve (5) designed to selectively reverse the hydraulic connection between the pressure side (2A) and the return side (2B) of the drive port (2) and the corresponding sides of the drive mechanism ports (3A, 3B, 3C). The invention also relates to a mobile crane comprising such an emergency operating valve group (1).
本发明涉及一种紧急操作阀组(1),包括:驱动端口(2),用于将所述阀组(1)液压地连接至移动式起重机的紧急驱动器;至少两个驱动机构端口(3A、3B、3C),用于将所述阀组(1)液压地连接到所述移动式起重机的一个驱动机构;至少两个截止阀(4A、4B、4C),所述截止阀分别与所述驱动装置接口(3A、3B、3C)中的一个相关联,并且所述截止阀被构造用于选择性地打开或关闭所述驱动接口(2)与分别与所述驱动接口相关联的所述驱动装置接口(3A、3B、3C)之间的液压连接;以及致动阀(5),其设计成选择性地使驱动端口(2)的压力侧(2A)和返回侧(2B)与驱动机构端口(3A、3B、3C)的对应侧之间的液压连接反向。本发明还涉及一种包括这种紧急操作阀组(1)的移动式起重机。
Emergency operating valve group for mobile crane
用于移动式起重机的紧急操作阀组
2024-01-30
Patent
Electronic Resource
Chinese
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