提升机构-25M塔式起重机总体和起升变幅机构设计-说明书.docVIP

摘 要 随着建筑的迅猛发展，塔式起重机25TM塔式起重机的总体结构及其组成，完成塔机总体设计和布置及变幅机构设计，掌握零部件设计、控制系统设计，零件设计。25TM塔式起重机的总体结构及其组成可分为金属结构、工作机构和驱动控制系统三部分。金属结构部分由塔身、起重臂架、回转平台、底架、台车架等主要部件组成。工作机构由起升机构、变幅机构、回转机构、行走机构组成。控制系统对工作机构的驱动装置和制动装置实行控制，完成机构的起动、制动、改向、调速等。 首先进行受力分析包括抗倾覆稳定性计算、安装架设稳定性计算等等,接着根据计算的结果选配变幅机构，首先通过计算选取合适的钢丝绳，接着设计卷筒，选取电动机、制动器、联轴器、减速箱等设计。 电气控制系统部分的设计：首先根据塔机的工作性能要求，设计本塔机的电气控制线路，选取相应的电控系统机构部件、电气保护和安全及信号装置等，用电缆将其连接成一个完整的系统，来控制塔机正常工作。 关键词：塔式起重机，变幅机构，钢丝绳 ABSTRACT With the rapid growth of building trades and hoisting machinery, hammer-head crane gradually gains the various services which is the high working efficiency, the widespread using, the large radius of gyration, the high depth of camber, the ease of operation as well as the ease of installment and the disassembling and so on. Having become the main construction machinery in the work site, hammer-head crane appeared earliest in the west urban construction during the Industrial Revolution, and had become the early type of lashing wire rope to hang the evolution, and along with the building structure system and the evolution of job practice, the tower machine also evolves all kinds of patterns and specifications and it is extremely important in the hoisting machinery. This design content determines the 25TM hammer-head crane overall structure and its composition, completes the tower machine system design and arrangement and the amplitude organization design, grasps the spare part design, the control system design, the components design. The 25TM hammer-head crane overall structure and its composition may divide into three parts, the metal structure、the operating mechanism and the actuation control system . The major component of metal structure is partially composed by the tower body, erector beam, rotates the platform, the chassis, and a frame and so on. The operating mechanism is composed by the hold organization, running mechanism. The control system controls the operating mechanism’s drive and the arresting gear implemen