US 12,247,626 B2
Well servicing pump system with driveline assembly for hydraulic fracturing system
Timothy Holiman Hunter, Duncan, OK (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jan. 5, 2023, as Appl. No. 18/150,478.
Prior Publication US 2024/0229870 A1, Jul. 11, 2024
Int. Cl. F16D 11/14 (2006.01); E21B 43/26 (2006.01); F04B 1/0404 (2020.01); F04B 9/02 (2006.01); F04B 53/00 (2006.01); F04B 53/22 (2006.01); F16D 11/00 (2006.01)
CPC F16D 11/14 (2013.01) [E21B 43/2607 (2020.05); F04B 1/0404 (2013.01); F04B 9/02 (2013.01); F04B 53/006 (2013.01); F04B 53/22 (2013.01); F16D 2011/002 (2013.01); F16D 2011/006 (2013.01); Y10T 403/7031 (2015.01); Y10T 403/7033 (2015.01)] 5 Claims
OG exemplary drawing
 
1. A well-servicing pump system, comprising:
a first pump;
a motor;
an actuator; and
a driveline assembly configured to selectively transfer rotary drive motion from the motor to the first pump, wherein the driveline assembly comprises:
a flange shaft;
a stub shaft; and
a coupling assembly actuatable by the actuator to selectively decouple the stub shaft and the flange shaft, wherein the coupling assembly comprises:
a drive-transfer cylinder movable between a drivingly-engaged position and a drivingly-disengaged position, wherein the drive-transfer cylinder transfers the rotary drive motion from the stub shaft to the flange shaft when the drive-transfer cylinder is in the drivingly-engaged position, and wherein the drive-transfer cylinder permits relative rotation between the stub shaft and the flange shaft when the drive-transfer cylinder is in the drivingly-disengaged position;
a locking sleeve movable between an unlocked position to permit movement of the drive-transfer cylinder between the drivingly-engaged position and the drivingly-disengaged position and a locked position to prevent the movement of the drive-transfer cylinder between the drivingly-engaged position and the drivingly-disengaged position; and
a ball-and-detent locking system configured to lock the coupling assembly relative to the flange shaft and the stub shaft in the drivingly-engaged position and the drivingly-disengaged position, wherein the ball-and-detent locking system comprises: a first detent defined in the stub shaft; a second detent defined in the flange shaft; and
a ball configured to be received within the first detent when the drive-transfer cylinder is in the drivingly-disengaged position, and received within the second detent when the drive-transfer cylinder is in the drivingly-engaged position.