| 摘要 |
PROBLEM TO BE SOLVED: To prevent damage of a driving pipeline in a work machine enabling spacing change of crawler frames.SOLUTION: A base carrier 3 includes: a car body 10 supporting a machine body 2; left and right crawler frames 20 which enable spacing change and are separable; left and right crawler cylinders 50 which displace the crawler frames 20; and driving pipelines 30 etc. which supply a pressure oil to hydraulic motors 22 installed at the crawler frames 20 in a circulation manner. Each driving pipeline 30 includes a relay pipeline 32 which relays a crawler side pipeline 31 to a body side pipeline 33. The relay pipeline 32 is arranged along the crawler cylinder 50. The body side pipeline 33 deflects in response to expansion and contraction of the crawler cylinder 50. |
