CONNECTING ROD-AND-ECCENTRIC DRIVE OF MULTI-PLUNGER PUMP Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: connecting-rod-and-eccentric drive of multi-plunger pump has bed, main shaft with eccentrics mounted on bearings, main journals and gear wheels with hubs and transmission shaft with gears which are so located that form toothed pairs with wheels of main shaft. Gears and gear wheels are located on the bed outside; gear wheels are secured on end surfaces of main journals by means of dowel pins and bolted joints; hubs of gear wheels are provided with shoulders whose lateral surfaces are located in such position that form common supporting surface for bearings together with lateral surfaces of and shoulders are located inside bearings. EFFECT: enhanced reliability. 3 cl, 1 dwg