Split Shell Shaft Coupling for Submersible Pump Assemblies

摘要

An electrical submersible pump assembly has a number modules including a pump, a motor and a pressure equalizer. Each module has a rotatable shaft with a splined end that joins a splined end of another module, and those splined ends may differ in dimensions. A coupling that joins the shafts has a first shell has a splined bore that mates with the splined end of the first shaft. A second shell has a splined bore that mates with the splined end of the second shaft. An adopter has a first splined end in mating engagement with the splined bore of the first shell and a second splined end in mating engagement with the splined bore of the second shell. Fasteners secure the adapter to the shells. An annular seal isolates fluid communication between the first shell bore and the second shell bore.

主权项

1. An electrical submersible pump assembly comprising:
a plurality of modules including a pump, a motor and a pressure equalizer; a first one of the modules having a rotatable first shaft with a splined end; a second one of the modules having a rotatable second shaft with a splined end; a first shell having a splined bore dimensioned such that it intermeshes with the splined end of the first shaft; a second shell having a splined bore dimensioned such that it intermeshes with the splined end of the second shaft; the splined bores of the first and second shells being coaxially aligned along an axis of the assembly; and a torque transfer member that secures the first and second shells together such that torque of the first shaft passes through the first shell to the second shell and from the second shell 10 the second shaft.