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在垅播垅管或平播垅管的垅作制条件下,若是首次作业(播种、起垅)时造成垅距不均等,会给下一步机械化衔接作业带来很多麻烦和困难(如伤苗、断垅等),甚至无法进行作业。造成垅距不均等原因主要归纳为以下两种:一种是在作业幅内形成的幅内垅距不均等。这与机具的零部件的变形、安装不当等有关,与开车技术无关,叫做结构原因或静因素。可通过恢复机具正常技术状态来克服。另一种是在相邻两工作幅衔接处形成的接幅垅距
In the case of broadcast pipelines or flat-screen broadcasting pipelines, if the first operation (sowing, slapping) results in unequal span, it will bring a lot of troubles and difficulties to the next mechanized bridging operation , Broken 垅, etc.), or even unable to operate. The causes of unequal span are mainly summarized as the following two kinds: One is the unequal span of the web formed in the working web. This is related to the deformation of the machine parts, improper installation, etc., has nothing to do with the car technology, called the structural causes or static factors. Can be overcome by restoring the normal technical condition of the implement. The other is the width of the joint between two adjacent work pieces formed at the distance