To provide a seal chain for a bucket type continuous unloader capable of restricting sliding abrasion between an outer peripheral surface of a connection pin and an inner peripheral surface of a bush by preventing leakage of lubricating oil and intrusion of external dust in operation of the chain, and capable of avoiding a sliding contact between an end surface of a bush and an inside surface of an outer plate.
This seal chain 100 for a bucket type continuous unloader is formed by arranging a seal mechanism 160 for preventing leakage of lubricating oil or intrusion of external dust between an inside surface 152 of an outer plate 150 and an outside surface 112 of an inner plate 110, and a connection pin 140 comprises oil passages 141 and 142 for supplying lubricating oil from a pin end part 145 to the inside of the pin and a recessed oil groove 144 for supplying lubricating oil from the oil passages 141 and 142 to the pin peripheral surface 143.
FUJIWARA MAKOTO
| JP2001090790A | 2001-04-03 |
Nobuo Fujimoto
Masayuki Miyake