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发明公开
CN1582358A 挖掘方法和挖掘设备 失效 - 权利终止

挖掘方法和挖掘设备
摘要：
一种挖掘设备，它包括一个切挖装置(23)，该切挖装置优选为一种连续链式切碎器，该切挖装置安装在一个原动机上以将切挖装置定位在壕沟中，而原动机可在壕沟水平之上的地面(22)上移动。在切挖装置是一个链式切碎器的情况下，悬臂相对于壕沟切挖方向向前且向下凸伸，该挖掘设备中布置有驱动装置以在一个方向上驱动所述链，从而带动围绕悬臂的远端向上输送切挖元件，并沿着连续链式切碎器(23)的上行路径(30)向后输送切挖元件。在运行过程中，链式切碎器(23)的远端被定位在壕沟(18)底部的壕沟的端面上；原动机(21)使链式切碎器在壕沟中向前移动，同时操纵链式切碎器，从而在壕沟的端面(54)中产生一个底切部(55)；提升装置(25)将切挖装置(23)经过端面处的材料而从底切部向上提升，从而将材料从壕沟的端面处切挖下来。
摘要（英）：

Trenching apparatus comprises a cutting device (23), preferably an endless chain cutter, mounted on a prime mover (21) for positioning the cutting device in a trench (18) with the prime mover movable on the ground surface (22) above the level of trench. Where the cutting device is a chain cutter, the boom projects forwardly and downwardly relative to the direction of cutting the trench, and drive means are arranged to drive the chain in a direction to carry the cutting elements upwardly around the distal end of the boom and rearwardly along the upper run (30) of the endless chain cutter (23). In operation the distal end of the chain cutter (23) is positioned against the end face of the trench at the bottom of the trench (18); the prime mover (21) moves the chain cutter forwardly in the trench while operating the chain cutter, so as to produce an undercut (55) in the end face (54) of the trench; and the lifting means (25) lifts the cutting device (23) upwardly from the undercut through the material of the end so as to cut material from the end face of the end face of the trench.

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