The invention discloses a supporting leg telescopic device and an engineering machinery vehicle, the supporting leg telescopic device comprises a horizontal supporting leg assembly, a telescopic rope wheel assembly, a vertical supporting leg assembly and an oil pipe folding and unfolding assembly, the horizontal supporting leg assembly comprises a fixed supporting leg, a first-stage supporting leg, a second-stage supporting leg and a horizontal oil cylinder for driving the first-stage supporting leg to stretch out and draw back; an extending rope wheel module of the telescopic rope wheel assembly drives the second-stage supporting leg to extend out when the first-stage supporting leg extends out, a retracting rope wheel module of the telescopic rope wheel assembly drives the second-stage supporting leg to retract when the first-stage supporting leg retracts, the vertical supporting leg assembly is arranged at the outer end of the second-stage supporting leg, and an oil pipe retracting and releasing wheel of the oil pipe retracting and releasing assembly is arranged in the first-stage supporting leg and located on the lower side of the horizontal oil cylinder. The fixed oil pipe is fixedly arranged in the second-stage supporting leg and guides the oil pipe retracting and releasing wheel from the vertical oil cylinder, the first end of the movable oil pipe is connected with the fixed oil pipe, and the second end of the movable oil pipe bypasses the oil pipe retracting and releasing wheel, downwards extends between the fixed supporting leg and the first-stage supporting leg and is fixedly connected with the fixed supporting leg, so that the length of the hydraulic oil pipe is shortened, and the purposes of facilitating assembly and reducing the manufacturing cost are achieved.
本发明公开了一种支腿伸缩装置及工程机械车辆,支腿伸缩装置包括水平支腿组件、伸缩绳轮组件、竖向支腿组件和油管收放组件,水平支腿组件包括固定支腿、一级支腿和二级支腿以及驱动一级支腿伸缩的水平油缸,伸缩绳轮组件的伸出绳轮模组在一级支腿伸出时带动二级支腿伸出,缩回绳轮模组在一级支腿缩回时带动二级支腿缩回,竖向支腿组件设于二级支腿的外端,油管收放组件的油管收放轮设于一级支腿内并位于水平油缸的下侧,固定油管固设于二级支腿内并自垂直油缸导向油管收放轮,活动油管的第一端与固定油管连接,第二端绕过油管收放轮向下伸入固定支腿与一级支腿之间并与固定支腿固连,由此减短液压油管长度,达到便于装配和降低制造成本的目的。
Supporting leg telescopic device and engineering machinery vehicle
支腿伸缩装置及工程机械车辆
09.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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