文档介绍：摘要
本次设计主要以2JTP-×,介绍了提升机的发展状况、作用、液压制动系统工作原理和一些元部件的结构原理,根据所掌握的参数拟定设计方案。
针对老式提升机采用的电液阀制动做了相应的对比,并对比例阀控制做出了分析。因在提升机制动系统中,安全性要求非常严、维修率大,制动系统发生了故障,将造成严重后果,因此这次设计针对提升机制动系统选配具有良好性能的保护装置。随着科学技术的发展,提升机制动系统也有了较大的变化,由块闸制动演变成闸盘制动,从以往所使用的电液阀制动转变为现代技术所采用的比例阀制动,采用比例阀控制制动有众多好处,与比例放大器配合,用电信号实现对流量、压力和流向的控制,可进行远距离控制,构成自动控制系统,既可开环控制,也可闭环控制。它的控制原理简单、控制精度高、抗污染能力强、价格适中,受到人们普遍重视,使得该技术得到飞速发展。
这次设计选用的是TP系列盘闸制动器,它能提供平稳均匀的摩擦制动力及零部件互换性好,与电控和液压系统配合,能使大型机电设备保持平稳地减速停车,这种制动器在矿山得到广泛的应用。
关键词:液压制动;电液阀;比例阀;盘形制动器
Abstract
This design focuses on 2JTP- design and analysis of hoist braking system as the primary, introduced the hoist hydraulic braking system of the status, role, principle of working principle and structure of ponents, according to the available parameters to develop design solutions. For the old hoist braking the parison is done using electro-hydraulic valve and proportional valve control to make the analysis. Because of hoist braking system, very strict security requirements, maintenance, and braking system fails, will have serious consequences, so the design for hoist braking systems matching protectors with good performance. As science and technology of development, upgrade mechanism dynamic system also has has larger of changes, by block gate brake evolution into gate disc brake, from past by using of electric liquid valve brake change for modern technology