英文名crawler crane。一般履带吊根据操作结构可划分为履带行走(travel)，回转盘(slewing),提升(hoist),变幅(luffing)几个功能，履带吊场地作业性能好，超出汽车吊，影响其主要安全的危险因素是地基的稳定性,是否超载或突发阵风等，其安全装置要求具备力矩限制器,重量限制器，吊钩高度或深度限制器等Crawler crane. General crawler crane operation based on the structure can be divided into crawler walking (travel), back wheel (slewing), promotion (hoist), amplitude (luffing) a few functions, the work in crawler crane performance is good, beyond the mobile crane, affecting the safety of the main risk factor is the stability of the foundation, whether or sudden gust overload, etc., its safety device requires a torque limiter, weight limiter, hook height or depth limiter, etc
Crawler crane advantages: good stability, large load capacity, good anti-skid performance, low requirements on the road surface. Disadvantages of crawler crane: poor flexibility, slow speed, high fuel consumption
Crawler crane can be used for material lifting, transportation, loading and unloading, installation and other operations. Crawler crane has the advantages of strong lifting capacity, small ground pressure ratio, small turning radius, large climbing capacity, no need to support legs, driving with load, good operation stability and truss combination height can be freely replaced, etc. It is widely used in power, municipal, bridge, petrochemical, water conservancy and hydropower and other construction industries.
Crawler crane is a kind of crane used for lifting and hoisting. It is a kind of crane most widely used in monolayer industrial workshop. It is composed of power device (engine), transmission device (main clutch, reducer, reversing mechanism, etc.), slewing mechanism, driving mechanism (crawler, walking support), hoisting mechanism (lifting mechanism of hook and derrick), operating system, working device (hanger, hoisting pulley set, etc.) and electrical equipment.
Flexible, easy to use, can turn 360 °, can load, low requirements for roads. But, its stability is small, unfavorable overload is used, walk slowly, and have certain level to destroy action to the road surface, unfavorable long distance walks, make long distance carriage with flatbed trailer commonly.
Problems to pay attention to when doing homework
履带吊优点： 稳定性好、载重能力大、防滑性能好、对路面要求低。 履带吊缺点： 灵活性差、行驶速度慢、耗油高
履带起重机可以进行物料起重、运输、装卸和安装等作业。履带起重机具有起重能力强、接地比压小、转弯半径小、爬坡能力大、不需支腿、带载行驶、作业稳定性好以及桁架组合高度可自由更换等优点，在电力、市政、桥梁、石油化工、水利水电等建设行业应用广泛。
。是单层工业厂房吊装应用最多的一种起重机。它由动力装置(发动机)、传动装置(主离合器、减速器、换向机构等)、回转机构、行驶机构(履带、行走支架)、卷扬机构(吊钩和吊杆升降机构)、操作系统、工作装置(吊杆、起重滑轮组等)和电器设备等组成。
机动灵活，使用方便，能回转360°，可载荷行驶，对道路的要求较低。但是，它稳定性小，不宜超负荷使用，行走慢，且对路面有一定程度的破坏作用，不宜长距离行走，一般用平板拖车作长距离运输。
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