| 摘要 |
PROBLEM TO BE SOLVED: To provide a slab drilling device capable of reducing an environmental load to the surrounding area, and reducing costs and labor of disposal.SOLUTION: A base 11 is laid across two rails 1a, 1b, and has a main wheel 25 for traveling on one rail 1a, and a sub wheel 26 for traveling on the other rail 1b. A height-adjustable auxiliary wheel 27 for traveling in parallel with the rails on a track slab 2 is provided between the main wheel 25 and the sub wheel 26. In the base 11, a sub wheel side can be bent upward with respect to an auxiliary wheel side at a position between the sub wheel 26 and the auxiliary wheel 27 so as to separate the sub wheel 26 from the rail. A support 12 is extended upward with respect to the base 11. A drilling means 13 is provided such that it can vertically move along the support 12, and it has a cylindrical bit 38 in a lower end, rotated by power and capable of drilling the track slab 2. A suction means 15 can suck chips generated when drilling the track slab 2 by the bit 38. |
