WINDING EMERGENCY LOWERING APPARATUS AND CRANE COMPRISING THE SAME

摘要

Disclosed is a winding emergency lowering apparatus, comprising a mobile pump station (1) and a lowering integrated control valve group (2). The mobile pump station (1) comprises a manual reversing valve (11), a first overflow valve (12), and a pressure gauge (13), a gear pump (14), a prime motor (15) and a hydraulic oil tank (16). The lowering integrated control valve group (2) comprises a throttle valve (21), a check valve (22), a balance valve (23) and a second overflow valve (24). The apparatus can implement winding emergency lowering control, and meanwhile implements functions of start buffering control and anti-explosion control. The apparatus is highly integrated, has a simple structure and low cost, and is easy to transport and maintain. Also disclosed is a crane comprising the winding emergency lowering apparatus.