| 摘要 |
PROBLEM TO BE SOLVED: To provide a grease feeder for construction machines capable of reliably detecting lack of a section to be fed with grease. SOLUTION: A grease pump 24 intermittently supplies grease for right and left bearing devices 21 and 20 through a grease feeding pipe 28. Flow sensors 29 having gears 31 and 32 rotating according to the amount of supply of grease are mounted to the bearing devices 20 and 21. A controller 35 detects the rotational positions P1 and P2 of the gears 31 and 32 of the flow sensors 29 for each supply of grease. The controller 35 determines whether the supply condition of grease for each of the bearing devices 20 and 21 is normal or not on the basis of the rotation of the gears 31 and 32 by a prescribed angle by one supply of grease. COPYRIGHT: (C)2011,JPO&INPIT
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