Quintuplex mud pump

F - Mech Eng,Light,Heat,Weapons – 04 – B

Patent

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Details

F04B 1/00 (2006.01) E21B 21/01 (2006.01) F04B 15/02 (2006.01)

Patent

CA 2696683

A quintuplex mud pump has a crankshaft supported in the pump by external main bearings. The crankshaft has five eccentric sheaves, two internal main bearing sheaves, and two bull gears. Each of the main bearing sheaves supports the crankshaft by a main bearing. One main bearing sheave is disposed between second and third eccentric sheaves, while the other main bearing sheave disposed between third and fourth eccentric sheaves. One bull gear is disposed between the first and second eccentric sheaves, while the second bull gear is disposed between fourth and fifth eccentric sheaves. A pinion shaft has pinion gears interfacing with the crankshaft's bull gears. Connecting rods on the eccentric sheaves use roller bearings and transfer rotational movement of the crankshaft to pistons of the pump's fluid assembly.

La présente invention concerne une pompe à boue à cinq pistons dans laquelle un vilebrequin est maintenu par des coussinets. Le vilebrequin comporte cinq manetons excentrés, deux tourillons internes et deux grandes couronnes. Chaque tourillon soutient le vilebrequin par l'intermédiaire d'un coussinet. Un tourillon est disposé entre les deuxième et troisième manetons excentrés, l'autre tourillon étant disposé entre les troisième et quatrième tourillons excentrés. Une grande couronne est disposée entre les première et deuxième manetons excentrés, la seconde grande couronne étant disposée entre les quatrième et cinquième manetons excentrés. Un arbre à pignons comporte des pignons d'engrenage qui s'engrènent avec les grandes couronnes du vilebrequin. Des bielles situées sur les manetons excentrée utilisent des paliers à rouleaux et transmettent le mouvement de rotation du vilebrequin aux pistons de l'ensemble fluide de la pompe.

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