The invention discloses a design method of a telescopic arm of a high-altitude operation machine. The telescopic arm comprises a basic arm, a plurality of overhanging arms sequentially connected to the front end of the basic arm and a sliding block assembly. The design method comprises the following steps that design parameters of the overhanging arms are determined; the dangerous working condition of the telescopic arm is determined, and the maximum normal stress of each overhanging arm under the dangerous working condition is obtained according to the design parameters; obtaining a first maximum contact stress of an extrusion dangerous area of each overhanging arm according to the maximum normal stress of each overhanging arm, wherein the extrusion dangerous area comprises an area where the overhanging arm is extruded with the first sliding block due to bending deformation; and judging whether the maximum normal stress and the first maximum contact stress of each overhanging arm meet the requirements or not, and if not, re-determining the design parameters of one or more overhanging arms until all the design parameters meet the requirements. The method is suitable for design of telescopic arms of high-altitude operation machines of different types of products, and the arm body designed through the method is more reliable.
本申请公开了一种高空作业机械的伸缩臂的设计方法。伸缩臂包括基本臂、依次连接于基本臂的前端的多个外伸臂和滑块组件,设计方法包括如下步骤:确定外伸臂的设计参数;确定伸缩臂的危险工况,根据设计参数获取在危险工况下每个外伸臂的最大正应力;根据每个外伸臂的最大正应力获取每个外伸臂的挤压危险区域的第一最大接触应力,挤压危险区域包括此外伸臂由于弯曲变形与第一滑块发生挤压的区域;以及判断每个外伸臂的最大正应力和第一最大接触应力是否均满足要求,如果否,重新确定某个/多个外伸臂的设计参数,直至均满足要求。该方法对不同型号产品的高空作业机械的的伸缩臂的设计均适用,而且采用该方法设计的臂体更具可靠性。
Design method of telescopic arm of high-altitude operation machine
高空作业机械的伸缩臂的设计方法
2022-08-09
Patent
Electronic Resource
Chinese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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