<section class="_135editor" data-role="paragraph" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp; &nbsp; 片梭织机的引纬机构是投梭机构,如图4-17所示,它是以无撞击的形式将夹持纬纱的片梭加速投向投梭点。<br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp;&nbsp;</p><p style="max-inline-size: 100%; clear: both; min-height: 1em; cursor: text; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/wszj10444.png" _src="http://dayaotex-img.gz.bcebos.com/article/fffspic/wszj10444.png" data-ratio="1.0603674540682415" data-w="381" 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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 片梭织机的投梭机构投梭所需要的能量是通过扭力杆4产生的,当凸轮5回转时,推动三臂杆8上的转子7,并使三臂杆摆动。三臂杆摆动时,推动方形连杆6,拉动短臂3,并使投梭套管9回转。由于投梭套管的前端与扭轴是固定的,使扭轴发生扭转,在扭轴内部就产生了弹性应力,积蓄了弹性能量,在扭轴加扭过程中,投梭臂杆2随同投梭套管同时摆动,使投梭滑块1回退到最左侧的投梭起始位置。直到三臂杆8与方形连杆6处于死心位置时即三臂杆8的摆动中心,三臂杆8与方形连杆6的联结点和方形连杆6与短臂3的联结点三点连成一条直线时,扭轴的加扭过程结束。当凸轮5继续回转时,位于凸轮两侧面的两只转子与三臂杆8的曲面接触,并使三臂杆转动,破坏了三臂杆摆动中心,三臂杆与方形连杆联结点和方形连杆与短臂联结点的三点死心位置,扭轴就开始释放出贮存的弹性能量。扭轴在放出能量时,使投梭套管急速顺时针方向转动,通过投梭杆2和投梭滑块1把片梭加速投出,为了吸收投梭过程中投梭机构的残余惯性力,在片梭织机上装有液压缓冲器。</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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 片梭织机不同幅宽,扭轴直径不同,其扭轴扭转范围也不同,下面是片梭织机的扭轴扭转范围,见表4-4。</p><p style="max-inline-size: 100%; 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%; clear: both; min-height: 1em; cursor: text; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><img src="http://dayaotex-img.gz.bcebos.com/article/fffspic/wszj10445.png" _src="http://dayaotex-img.gz.bcebos.com/article/fffspic/wszj10445.png" data-ratio="0.27569331158238175" data-w="613" style="margin: 0px; padding: 0px; width: 384.4px; max-inline-size: 100%; max-width: 100%; overflow-wrap: break-word !important; outline: none 0px !important; height: auto !important;"></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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; 随着片梭织机引纬速度的提高,片梭经初始飞行速度也必须相应地提高,这就要求进行改进片梭的加速机构。P7300型织机在以下方面进行改进:</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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (1)优化加速机构,提高机构效率增大加速装置的投梭角度。</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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (2)优化投梭凸轮曲线,投梭运动和谐平稳。</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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (3)采用新钢质的投梭杆<span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; caret-color: red; overflow-wrap: break-word !important; outline: none 0px !important;">。</span></p><p style="max-inline-size: 100%; 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; caret-color: red; 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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (4)进一步加长了扭轴。</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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;">&nbsp;&nbsp;&nbsp; (5)重新设计了投梭箱的润滑的润滑冷却系统,对受载荷大的零件和投梭机构底部的零件进行专门直接润滑等。</p><p style="max-inline-size: 100%; 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%; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; 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></section><section class="_135editor" data-role="paragraph" id="autoparagraph" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; 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; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); overflow-wrap: break-word !important; outline: none 0px !important;"></p></section>