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正如部分断面掘进机这一名称所表述的一样,这种掘进机只能截割掘进工作面的一部分。为了达到截割整个巷道断面的目的,截割头得在掘进工作面上上下左右地移动。人们把纵向截割头和横向截割头的掘进机,按照截割头的转向细分成径向掘进机和轴向掘进机。纵向截割头与截割臂做同轴旋转(图1,左),截割臂的回转方向与截割头转动轴线垂直。在横向截割头情况下,横向截割头的转动轴线与截割臂成90°角,即与掘进工作面平行(图1,右),截割臂的回转方向与截割头的转动轴线一致。西德煤矿中主要使用的部分断面掘进机的主要数据见表1。目前使用的掘进机大约80台,其中约65％以纵向截割头工作,35％以横向截割头工作。
As part of the name of TBM, the TBM can only cut part of the heading. In order to achieve the purpose of cutting the entire tunnel section, the cutting head to move up and down in the heading face. People cut the longitudinal cutting head and transverse cutting head boring machine, according to the cutting head steering subdivided into radial boring machine and axial boring machine. The longitudinal cutting head and the cutting arm make coaxial rotation (Figure 1, left), and the direction of rotation of the cutting arm is perpendicular to the rotation axis of the cutting head. In the case of a transverse cutting head, the axis of rotation of the transverse cutting head is at an angle of 90 ° to the cutting arm, ie parallel to the heading face (Figure 1, right), the direction of rotation of the cutting arm and the axis of rotation of the cutting head Consistent. The main data of some section boring machines mainly used in West Germany coal mine are shown in Table 1. Approximately 80 tunnel boring machines are currently used, of which about 65% work in longitudinal cutting heads and 35% in horizontal cutting heads.