<p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-family: &quot;Helvetica Neue&quot;, Helvetica, &quot;PingFang SC&quot;, Tahoma, Arial, sans-serif; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp; &nbsp; 打纬机构的主要作用是将引入梭口的纬纱推向织口,使之与经纱紧密交织形成织物。</span></p><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-family: &quot;Helvetica Neue&quot;, Helvetica, &quot;PingFang SC&quot;, Tahoma, Arial, sans-serif; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 二、打纬机构的类型</span></p><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-family: &quot;Helvetica Neue&quot;, Helvetica, &quot;PingFang SC&quot;, Tahoma, Arial, sans-serif; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 目前喷水织机主要采用连杆打纬。</span></p><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-family: &quot;Helvetica Neue&quot;, Helvetica, &quot;PingFang SC&quot;, Tahoma, Arial, sans-serif; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 连杆打纬机构是利用杆件把织机主轴的回转运动转变为钢筘的摆动运动。应用最多的是四连杆打纬机构,也有在四连杆基础上发展的六连杆打纬机构。此外为了适应某些织物品种,还有一些特殊的多连杆打纬机构。这里主要介绍四连杆打纬机构。四连杆打纬机构结构简单、制造方便、适于高速运转,在无梭织机上应用广泛。</span><br style="max-inline-size: 100%; margin: 0px; padding: 0px; font-family: &quot;Helvetica Neue&quot;, Helvetica, &quot;PingFang SC&quot;, Tahoma, Arial, sans-serif; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-family: &quot;Helvetica Neue&quot;, Helvetica, &quot;PingFang SC&quot;, Tahoma, Arial, sans-serif; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/wszj10340.png" _src="http://dayaotex-img.gz.bcebos.com/article/fffspic/wszj10340.png" data-ratio="1.4124513618677044" data-w="257" style="margin: 0px; padding: 0px; max-inline-size: 100%; max-width: 100%; overflow-wrap: break-word !important; outline: none 0px !important; height: auto !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 图3-15为某喷水织机的四连杆打纬机构的运动简图。A为主轴,AB为曲柄,BC为连杆(牵手),D为摇轴,它们共同构成一曲柄摇杆机构。四连杆打纬机构的运动特性可用C点的运动来表示。如果连杆BC两极端位置连线</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">C</span><sub style="max-inline-size: 100%; margin: 0px; padding: 0px; font-size: 12px; overflow-wrap: break-word !important; outline: none 0px !important;">1</sub><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;C</span><sub style="max-inline-size: 100%; margin: 0px; padding: 0px; font-size: 12px; overflow-wrap: break-word !important; outline: none 0px !important;">2</sub><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;的延长线通过主轴中心,则称为轴向打纬机构;否则称为非轴向打纬机构。主轴中心偏离C</span><sub style="max-inline-size: 100%; margin: 0px; padding: 0px; font-size: 12px; overflow-wrap: break-word !important; outline: none 0px !important;">1</sub><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;C</span><sub style="max-inline-size: 100%; margin: 0px; padding: 0px; font-size: 12px; overflow-wrap: break-word !important; outline: none 0px !important;">2</sub><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;线的程度e,称为非轴向偏度。主轴中心A若位于C</span><sub style="max-inline-size: 100%; margin: 0px; padding: 0px; font-size: 12px; overflow-wrap: break-word !important; outline: none 0px !important;">1</sub><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;C</span><sub style="max-inline-size: 100%; margin: 0px; padding: 0px; font-size: 12px; overflow-wrap: break-word !important; outline: none 0px !important;">2</sub><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;线的上方,则e为正值,后止点位置小于180°;反之,为负值,后止点位置大于180°。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 连杆BC长度L与曲柄AB长度R的比值L/R和非轴向偏度e的大小,都影响C点的运动,也就是影响钢筘的运动。其中以比值L/R的影响为主。按照比值L/R的大小,打纬机构可分为长牵手打纬机构、中牵手打纬机构和短牵手打纬机构。一般来说,L/R&gt;6,称为长牵手打纬机构;L/R=3～6,称为中牵手打纬机构;L/R&lt;3称为短牵手打纬机构。按照连杆机构运动分析方法,可得出C点的运动规律。连杆BC越短,当曲柄处于前死心(0°)时,钢筘的运动加速度最大,有利于打纬,所以短牵手打纬机构适宜于宽幅、厚重织物的织造,如喷水织机上,L/R&lt;3,牵手相当短。但是,牵手越短,钢筘运动的加速度变化就越大,加剧了织机的振动,不利于高速,一般配以轻筘座加以弥补,以适应高速,减少振动。中、长牵手打纬机构则多用于轻型、窄幅的织机上。</span></p><section class="_135editor" data-role="paragraph" id="autoparagraph" style="max-inline-size: 100%; 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