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目前,国内半移动破碎站衬板挡墙门的结构,如图1所示,是4扇由型钢、钢板焊接而成并通过旋转装置连接组成的钢结构,打开挡墙门后,维修小车可进出破旋回碎机下部,对破碎机的液压缸进行维修。门1和门4分别通过固定在型钢架上的旋转装置1前后旋转,门2和门3分别绕固定在门1和门4上的旋转装置2前后旋转。门2和门3上分别设有上下2组相同的门栓装置,实现挡墙门的开闭。
At present, the structure of the domestic semi-mobile crushing plant lining wall retaining door, as shown in Figure 1, is a 4-piece steel structure formed by welding steel sections and steel plates and connected by a rotating device. After opening the retaining wall door, Broke into the lower part of broken broken back to crusher hydraulic cylinder for maintenance. The door 1 and the door 4 are respectively rotated back and forth by the rotating device 1 fixed on the steel frame, and the door 2 and the door 3 are respectively rotated forward and backward about the rotating device 2 fixed on the door 1 and the door 4. The door 2 and the door 3 are respectively provided with two groups of upper and lower door bolt devices to achieve the opening and closing of the wall door.