带式输送机全自动液压张紧装置摘要目录.doc

毕业设计(论文)网: QQ:306826066摘 要本设计主要是带式输送机全自动液压张紧装置的设计。它是在吸收国、内外输送机张紧技术的基础上，根据国内带式输送机的运行特点及要求研制的。它采用比例控制技术及可靠性较高的可编程控制技术，可以对张紧力进行多点控制，根据不同工作情况随时调节张紧力的大小。能最大程度的延长皮带的寿命，大大节约了成本。在设计中，用一个动滑轮使液压缸的行程减少了一半，避免使用行程较长的液压缸，减少了制造液压缸的难度。同时，系统中增加了若干个蓄能器，可以最大限度的吸收液压冲击，减小对皮带的冲击力提高胶带的使用寿命。关键词：带式输送机; 全自动液压张紧装置; 比例控制; 可编程控制AbstractThis design is mainly about full automatic hydraulic tension station for belt conveyer. It is designed on the foundation of opening technology in and outside, according to the domestic operation characteristic of belt conveyer and requirement. The equipment is also made on domestic belt-type conveyer movement characteristic and requestment. It uses the proportional control technology and the reliable higher programmable control technology, It may carry on the multi-spots control to strict the strength, adjusts pressing the strength size as necessary according to the different working condition.It can be the greatest degree lengthen the leather belt the life, greatly saved the cost. In the design, It causes the hydraulic cylinder with a movable pulley the stroke to reduce one half, and avoides using a stroke longer hydraulic cylinder.In this way,it reduces difficulty of the hydraulic cylinders produce. At the same time, it increases certain accumulators in the system, and limits absorption hydraulic pressure impact,which reduces the leather belt impulse and enhances the adhesive tapes life.Key words: Belt-type conveyer, full automatic hydraulic tension station , proportional control, programmable control目 录1概述11.1 张紧装置综述11.1.1 张紧装置作用11.1.2张紧装置类型11.2 新型液压张紧装置21.3 液压传动的特点21.3.1优点21.3.2缺点22 主要设计参数及方案确定42.1 主要设计要求42.2 方案确定42.2.1参考方案一42.2.2参考方案二42.2.3参考方案三62.2.4方案对比62.3 确定系统主要参数72.3.1 主要设计参数72.3.2 液压缸的主要参数73 确定液压泵及配套电机103.1 液压泵的选用103.2电动机的选用134 确定液压系统元件、辅件154.1 选择液压控制阀型号154.2 确定液压辅件154.2.1蓄能器的选用154.2.2过滤器的选用194.2.3 液压管路的设计205 液压缸设计235.1液压缸的类型和安装形式235.2 液压缸主要零部件结构、材料和技术要求235.2.1 缸筒与缸盖235.2.2活塞265.3 活塞杆的导向套、密封和防尘285.4 排气阀295.5 油口305.6密封圈、防尘圈的选用315.7 销轴的安装315.8液压缸的主要性能参数316 液压油路板的结构366.1 液压油路板的设计367 油箱及其附件407.1油箱的用途和分类407.2油箱的构造和尺寸407.3液压油箱的结构设计418 液压系统的安装、使用和维护508.1 液压系统的安装、试压和调试508.1.1 液压元件的安装508.1.2 管路的安装与清洗518.2 试压518.3 液压系统的