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YZ-55B型牙轮钻机原机扶梯采用立式结构,如图1所示。使用过程中,发现这种扶梯存在以下缺陷:移动扶梯时,需要使用千斤顶进行操作;人员上、下机器到达机上平台时,需做一个向左或向右的转身动作,由此容易造成滑倒跌伤事故。为实现人员安全、便捷地上、下机器,特对该扶梯结构进行改进。
YZ-55B-type cone drill original escalator using vertical structure, shown in Figure 1. During use, it was found that the escalator has the following defects: When moving the escalator, a jack is required for operation; when the upper and lower people reach the airplane platform, a turning left or right action needs to be performed, which may easily cause slipping Fell accident. In order to realize the safety of personnel, it is easy to improve the structure of the escalator.