| 摘要 |
PROBLEM TO BE SOLVED: To prevent the damage of a pipe body for supplying grease by forming the connecting section of a power link for a construction equipment in a closed hollow shape, utilizing the connecting section as a grease passage and supplying grease through through-holes bored to the interior wall surfaces of each bearing section. SOLUTION: The connecting section 10 of the power link 1 for the construction equipment is formed in a closed hollow shape. Ports 14 communicated with a hollow section 13 are bored near idler-link side bearing sections 11, and pipe bodies 3 extended from idler links 2 are connected. Through-holes 16 communicated with the hollow section 13 from interior-wall surfaces are bored to exterior-wall surfaces oppositely faced to the hollow section 13 in each bearing section 11, 12 respectively. The hollow section 13 is filled with grease made to flow out from the pipe bodies 3 from ports 14, and grease is injected to each bearing section 11, 12 through the through-holes 16. Accordingly, the pipe bodies 3 need not be extended up to a section in the vicinity of the bucket-side bearing section 12, and the damage of the pipe bodies 3 can be prevented. Grease supply operation can be rationalized.
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