The invention discloses a variable-lap-joint-length supporting leg structure and a wheeled crane, the variable-lap-joint-length supporting leg structure comprises a frame, a fixed supporting leg, a movable supporting leg, a vertical oil cylinder, a supporting foot disc, a horizontal oil cylinder, a telescopic supporting piece and a pin shaft, the movable supporting leg is sleeved in the fixed supporting leg, and the fixed supporting leg is fixed on the frame; one end of the horizontal oil cylinder is fixed on the fixed supporting leg, and the other end is fixed on the movable supporting leg; the outer sides of the movable supporting legs are connected with vertical oil cylinders; the lower end parts of the vertical oil cylinders are connected with supporting foot plates; one end of the telescopic supporting piece is connected with the fixed supporting leg/the frame through a pin shaft and can freely rotate around the pin shaft, the other end of the telescopic supporting piece is a free end and is of a stress structure, and the movable supporting leg is provided with a fixing structure matched with the free end of the telescopic supporting piece. The problem that in the prior art, the strength of the lap joint cannot be enhanced by increasing the lap joint length is solved.
本发明公开了一种变搭接长度支腿结构及轮式起重机,变搭接长度支腿结构包括车架、固定支腿、活动支腿、垂直油缸、支脚盘、水平油缸,可伸缩支撑件、销轴,活动支腿套设在固定支腿内,固定支腿固定在车架上;水平油缸一端固定在固定支腿上,另一端固定在活动支腿上;活动支腿外侧连接垂直油缸,垂直油缸下端部连接支脚盘;可伸缩支撑件一端通过销轴连接固定支腿/车架,并可绕销轴自由转动,另一端为自由端且为可受力结构,活动支腿上设有与可伸缩支撑件自由端配合的固定结构。本发明解决了现有技术中无法通过增加搭接长度,加强搭接处强度的问题。
Landing leg structure with variable lap joint length and wheeled crane
一种变搭接长度支腿结构及轮式起重机
2022-06-28
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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