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导向壳体是掘进机的重要部件,其强度和刚度将关系到整机性能。由于受力状态、边界条件及构造均较复杂,过去一直沿用结构力学的笔算方法。所以,运算繁复,计算结果误差很大。掘进机导向壳体前方安装了一个大轴承(见图1),轴承外圈套在刀盘内,内圈与壳体相连,行星齿轮箱套人壳体内并与壳体前后端面连接。齿轮箱与电机组成驱动装置,使刀盘旋转,产生扭矩。壳体两侧与顶部分别装有侧
Guide shell is an important part of roadheader, its strength and stiffness will be related to the overall performance. Due to the state of stress, the boundary conditions and the structure are more complicated. In the past, structural mechanics has been used in the calculation method. Therefore, complicated calculation, the calculation error is large. A large bearing (see FIG. 1) is mounted on the front of the roadheader guiding casing. The bearing outer ring is sheathed in the cutter disc and the inner ring is connected with the casing. The planetary gear casing is sheathed inside the casing and connected with the front and back faces of the casing. The gear box and the motor form a driving device to rotate the cutter head to generate torque. The sides and the top of the case are each fitted with a side