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摘要
起重机械广泛应用于工矿企业、港口码头、车站仓库、建筑工地、海洋开发、宇宙航行等各个工业部门,可以说陆地、海洋、空中、民用、军用各个方面都有起重机械在进行着有效的工作。
起重机械与运输机械发展到现在,已经成为合理组织成批大量生产和机械化流水作业的基础,是现代化生产的重要标志之一。在我、劳动生产率的提高中,起重机必将发挥更大的作用。
此次设计的起重机为50/10t双梁桥式起重机,主要用于各车间、分段生产线和钢材堆场等处。桥式起重机本身作横向移动,车架上的绞车作纵向移动,吊在绞车上的吊钩作垂向移动,三个方向的运动的合成才能使起重机起作用。为了防止桥式起重机在驾驶员看不清楚具体的吊钩运动方式,地面上一般配备有起重工进行指挥或夹、放吊钩。
本课题主要对50/10t双梁桥式起重机的主起升机构进行总体设计,设计过程中查阅了大量国内外的相关资料,所做的设计运用了大量的专业课程。首先通过确定传动方案,选择滑轮组和吊钩组,选择合适的钢丝绳,计算滑轮的主要尺寸,确定卷筒尺寸并验算其强度,计算高速浮动轴,选择合适的电动机、减速器、制动器和联轴器。要求起重设备运行平稳, 定位准确, 安全可靠, 技术性能稳定。
关键词:起重机;桥式起重机;起升机构设计
Abstract
The hoisting machinery widely applies in the industrial and mining establishment, the harbor wharf, the station warehouse, the construction site, the ocean development, the astronautics and so on each industry sector, it may say that the land, the sea, airborne, civil, the military each aspect has the hoisting machinery to carry on the effective work.
The hoisting machinery and the transport machinery develops to the present, have already became the anization in groups mass productions and the mechanization streamlined production foundation, it is the one of modernized production important symbols. In our country four modernizations' development and each industry sector mechanization level, in labor productivity's enhancement, the hoist crane will certainly to play the major role.
This design of hoist crane is the 50/10t double beam bridge type hoist crane, mainly uses in various workshops, the partition production line and the steel products dump site and so on place. The bridge-type hoist crane itself makes the derailing, on frame's winch makes the longitudinal shift, hangs makes the vertical migration on winch's lift hook, three direction's movement's synthesis can cause the hoist crane to have an effect. In order to prevent the bridge-type hoist crane to look at not the clear concrete lift hook mode of motion in the pilot, as soon as in the ground is a match has the heavy industry to carry on t