The invention discloses a novel boom crane. The novel boom crane comprises a crane chassis and a telescopic boom, wherein the end of the telescopic boom is connected with a turntable on the crane chassis, the other end of the telescopic boom is connected with a variable amplitude secondary arm, and the variable amplitude secondary arm is connected with a truss arm; the variable amplitude secondaryarm is provided with a lifting steel wire rope for adjusting the height, and the truss arm is provided with a variable amplitude mechanism for adjusting the amplitude; and the telescopic boom is provided with a super-lifting device, and the super-lifting device is provided with a super-lifting steel wire rope. At the front end of the variable amplitude secondary arm, the structural form of a fixed secondary arm with variable angle is integrated, and for working condition operation with high lifting height and large amplitude, but low lifting weight requirement, the angle of the secondary armat the front end can be changed to expand the working range; and meanwhile, the boom form can effectively avoid the anti-rod problem during hoisting operation.
本发明公开了一种新型臂架起重机,包括起重机底盘和伸缩式臂架,所述伸缩式臂架的一端与起重机底盘上的转台连接,另一端连接有变幅副臂,所述变幅副臂上连接有桁架臂;所述变幅副臂设有调节高度的起升钢丝绳,所述桁架臂设有调节幅度的变幅机构;所述伸缩式臂架设有超起装置,所述超起装置设有超起钢丝绳;在变幅副臂前端,融入了固定副臂可变角度的结构形式,对于起升高度高、幅度较大,但起重量要求不高的工况作业,可通过改变前端副臂角度,以拓展工作范围,同时,该臂架形式可有效的避免吊重作业时的抗杆问题。
Novel boom crane
一种新型臂架起重机
2020-05-12
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
CRANE BOOM, CRANE WITH THE CRANE BOOM, AND METHOD FOR MOUNTING GUY SUPPORT ON CRANE BOOM
European Patent Office | 2018
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