QDZM6/9气动挡车门

二、用途

QDZM系列气动挡车门主要应用于煤矿轨道运输路线中，有QDZM6型和QDZM9型，QDZM6型适用于600㎜轨距，QDZM9型适用于900㎜轨距。我公司也可根据用户要求加工制造专用气动挡车门。

三、主要特点及参数

1.结构简单，成本低，安装、维修方便

2.气体动力，抗干扰，安全可靠

3.灵敏度高，协调性好，操作省力  

4.气缸规格：125x600

5.气控压力：0.1—0.8MPa                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

四、结构特征、工作原理

QDZM系列气动挡车门主要由挡车门、气缸固定架、挡车固定架、气缸、气控箱等零部件组成。

QDZM系列气动挡车门依靠气控阀的不同换向，实现阻挡或放行矿车。搬动气控箱的控制阀，气缸活塞杆在压缩空气的作用下伸出，同时带动挡车门的臂杆、挡车门绕气缸固定架的转轴进行转动，打开挡车门，放行矿车；当矿车通过后，搬下气控箱的控制阀，气缸活塞杆在压缩空气的作用下收缩，挡车门绕气缸固定架的转轴进行转动，关闭挡车门。

五、安装、调试、维护保养

1.安装

安装前应全面检查各零部件在运输、保管过程中是否造成缺损,不得使用有缺损的零部件。

将气缸固定支架通过地脚螺栓连接，调整并紧固牢靠，挡车门的转轴装入气缸固定支架的销孔内，注意销孔内预先放入一直径40的钢球，手动来回运转一下，看是否灵活，完哔后用地脚螺栓固定挡车固定架。连接好气缸前后的鱼口与尾座，再把气控箱固定在指定位置，连接好高压进气管及气缸进气管，准备调试。