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叉车用双梯形机构,在主销有安装角时,如有内倾角,应属于空间机构;而在主销垂直于地面时,则可能属于平面机构.但在过去却不管主销有无安装角,都将它作为平面机构来计算,且不经任何修正即将计算结果用来构造真实机构,这样对主销有安装角的双梯形转向机构势必带来设计误差.但是要按空间机构来进行设计,在过去是比较困难的,现今由于计算技术和工具的发展已为按空间机构来设计它提供了必要条件,本文论述的中心是按空间机构来计算双梯形转向机构的方法.其特点是简便实用.
Forklift with double trapezoidal mechanism, with the installation of the main pin angle, if any inclination, should belong to the space agency; and in the kingpin perpendicular to the ground, it may belong to the plane body, but in the past despite the king pin with or without mounting angle , It will be calculated as a planar mechanism, and without any modification of the calculation results will be used to construct the real body, so that the kingpin has a double corner steering angle steering mechanism is bound to bring design errors, but according to space agencies to design , Which has been difficult in the past, has now provided the necessary conditions for the design of it by space agencies, and the focus of this article is a method of calculating double trapezoidal steering mechanisms by space agencies, which is characterized by its simplicity practical.