PROBLEM TO BE SOLVED: To decrease fitting places for a grease nipple and working holes while enabling greasing even when inner and outer boom slide plates do not overlap with each other.SOLUTION: A multistage telescopic boom 10 comprises a plurality of greasing devices 20 which divide grease supplied from a grease nipple 60 to grease slide plates 30 at two places of booms adjoining each other inside and outside. Each greasing device 20 has a fitting hole for one grease nipple 60, a lateral feed oil passage communicating therewith, and two grease discharge holes 55 for supplying grease simultaneously to between booms 2, 4 communicating with the lateral feed oil passage and fitted with the greasing device 20 and booms 3, 5 which are one stage inside the booms 2, 4, and to between the booms 2, 4 fitted with the greasing device 20 and booms 1, 3 which are one stage inside the booms 2, 4.SELECTED DRAWING: Figure 2
【課題】内外のブーム摺動板同士が重なり合わなくとも給脂可能としつつ、グリスニップルの取り付け箇所および作業用穴を減らす。【解決手段】この多段伸縮ブーム10は、グリスニップル60から給脂されたグリスを分割して内外で隣接するブームの2箇所の摺動板30に給脂する給脂装置20を複数備える。各給脂装置20は、1つのグリスニップル60の取付孔と、それに連通する横送り油路と、横送り油路に連通して給脂装置20を取り付けたブーム2,4と当該ブーム2,4の1段内側のブーム3,5との間と、給脂装置20を取り付けたブーム2,4と当該ブーム2,4の1段外側のブーム1,3との間に、同時にグリスを給脂する二つのグリス吐出孔55とを有する。【選択図】図2
GREASING DEVICE FOR MULTISTAGE TELESCOPIC BOOM, AND MULTISTAGE TELESCOPIC BOOM WITH THE SAME
多段伸縮ブーム用給脂装置およびこれを備える多段伸縮ブーム
2016-12-22
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |