Shaft locking couplings for submersible pump assemblies

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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F16D 1/108 (2006.01) F04D 13/10 (2006.01) F04D 29/04 (2006.01)

Patent

CA 2605887

An electrical submersible pump assembly (11) has first (23) and second (25) modular component sections, each of the sections having an outer housing and an inner shaft member. A coupling sleeve (71) having a bore is disposed between the modular component sections and receives the shaft member (37) of each of the component sections. The bore of the coupling sleeve and the shaft members have mating drive shoulders for transmitting torque. An axial tension transmitting shoulder (55) is affixed to the shaft member of the first modular component section and located in the bore of the coupling sleeve. A latch member (75) carried by the shaft member of the second modular component section engages the axial tension transmitting shoulder as the modular components are moved together to secure the shaft members to one another for transferring axial tension from one of the shaft members to the other. A retainer (63) prevents disengagement of the latch member.

L'invention concerne un ensemble pompe submersible électrique (11) présentant des première (23) et seconde (25) sections de composants modulaires, chacune des sections présentant un corps extérieur et un élément d'arbre intérieur. Un manchon d'accouplement (71) présentant un alésage est disposé entre les sections de composants modulaires et reçoit l'élément d'arbre (37) de chacune des sections de composants. L'alésage du manchon d'accouplement et les éléments d'arbres présentent des épaulements d'entraînement correspondants pour la transmission du couple. Un épaulement de transmission de tension axiale (55) est fixé sur l'élément d'arbre de la première section de composant modulaire et situé dans l'alésage du manchon d'accouplement. Un élément de verrouillage (75) porté par l'élément d'arbre de la seconde section de composant modulaire vient en prise avec l'épaulement de transmission de tension axiale lorsque les composants modulaires sont déplacés afin de fixer les éléments d'arbres l'un à l'autre pour le transfert d'une tension axiale de l'un des éléments d'arbres à l'autre. Un dispositif de retenue (63) empêche le désaccouplement de l'élément de verrouillage.

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