BENCH FOR RUNNING-IN AND TEST OF HYDRAULIC BOTTOMHOLE MOTORS Russian patent published in 2011 - IPC G01M15/00 E21B4/02 F01C1/107 F04B51/00 

FIELD: test equipment.

SUBSTANCE: invention refers to machine building industry and is used for running-in and test performance of hydraulic bottomhole motors (BHM). Bench includes setting base 7, clamping devices for hydraulic BHM attachment, hydraulic baffle plate 15, two electromagnetic powder brakes 9 and 10, contact-free torque sensor 11 with option of measurement of rotation speed, storage capacity for power liquid 2 and pump 1. Bench is equipped at least with two bearing assemblies 12 and 13 related to base 7, between which there installed is sensor 11. Shaft bearing assembly 13 is connected to outlet shaft of hydraulic BHM. Shaft of bearing assembly 12 is connected to shaft of one of brakes by means of removable connections through the connecting rod. Brake 9 has braking torque value of not less than 45 kNm. Brake 10 is fixed on base 7 with possibility of being moved in transverse direction relative to the bench axis. Its shaft is equipped with detachable connection to be connected to shaft of bearing assembly. Bench is equipped with hydraulic collector made in the form of tube with welded ends, which is connected to base 7, and it includes clamping devices connected to base 7 and is made in the form of not less than two fixed clamps 16 and not less than two clamps-diverters 17 and equipped with levers and hydraulic cylinders for movement of levers.

EFFECT: improving accuracy of parameters of hydraulic BHM characteristics and enlarging technological capabilities of the bench.

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