毕业设计（论文）-一种风电变桨轴承试验用配重臂装卸装置.docVIP

一种风电变桨轴承试验用配重臂装卸装置 学 校： 院系专业： 指导教师： 姓 名： 2010.11.20 摘 要 本设计说明书主要是关于一种风电变桨轴承试验用配重臂装卸装置及装卸方法中配重臂装卸装置的设计思路和设计过程。 目前在风力发电变桨回转轴承性能测试中，采用配重臂模拟桨叶，配重模拟作用在桨叶上的风载，通过配重臂与轮毂的连接来进行变桨回转轴承的性能测试，但配重臂与轮毂之间的装配和拆卸是依靠吊车实现的，其缺点是每次只能装配或拆卸一个配重臂，需要多人参与装配，生产效率和自动化水平低、安全性差。因此开发一种高效、安全的自动化的变桨配重臂装卸装置是亟待解决的问题。 在科技飞速发展、自动化程度高速发展的今天，提高风力发电变桨回转轴承性能测试中配重臂与轮毂之间的装配和拆卸效率显得尤为重要，本课题就如何提高这一工作效率作出了设计及论证，采用液压系统驱动控制平行四连杆机构，其进退控制阀组可实现进退缸的位置保持及浮动控制；升降控制阀组、同步马达、升降缸阀组可实现升降缸的位置保持、升降缸的二级压力切换及同步升降控制，具有自动化程度高、安全性好的优点。 关键词：风力发电变桨回转轴承 配重臂设计 液压系统 平行四连杆机构 ABSTRACT This design guide is mainly about a handing device of wind turbine pitch bearing’s weight balance system and design ideas, design process of weight balance arm system in assemble and disassemble methods. Currently in tests of wind turbine pitch bearing, using the weight balance arm to simulate blades. Weight balance arm simulate the wind load on the blade, and make performance testing by connect the weight balance arm and the hub. But the assemble and disassemble between weight balance arm depends on cranes to realize, the drawback is that you can only assemble or disassemble one counterweight arm, several people are needed to participate in assemble, the production efficiency and the automation level are low, security is also not good. Therefore to develop an efficient and secure automated turbine pitch bearing weight balance arm handling device is a problem to be solved. With the rapid development of technology and automation today, to improve assemble and disassemble efficiency between hubs in wind turbine pitch bearing system is particularly important. This issue made design and demonstrate on how to improve the work efficiency in this area, use hydraulic to drive and control a parallel four-connecting-rod organization. The advance and retreat control group can realize position keep and floating control. However, maintain of position, the secondary pressure’s control switch of lifting cylinder and synchronization lifting control can be realized