SPRING DRIVE OF THE DEEP WELL PUMP Russian patent published in 2022 - IPC F04B47/02 

FIELD: mining industry.

SUBSTANCE: invention relates to the field of hydraulic volumetric displacement machines, namely to the spring drive of a deep well pump. The drive contains an engine 14, a rod 1 movably mounted in guides 2, spring motors 3 mounted symmetrically on both sides of the rod 1 and connected to it by a cable-block system. The motors 3 with the possibility of regulating the pre-spring force are equipped with tensioning mechanisms 10 connecting the motor 3 housings with fixed supports. The engine 14 is designed to ensure the accumulation of potential energy in the springs of the motors 3. The invention is aimed at increasing the specific performance of the drive, which is achieved by obtaining a nonlinear oscillatory cable-block system in which the stroke of the rod 1 is larger than the base, which provides reducing the weight and dimensions of the drive or increasing the stroke of the rod 1, and consisting of single and double movable and fixed blocks, inserted with a flexible element 8, during the operation of which preliminary deformation of the springs of the motors 3 is provided, equal to the minimum distance between the pivot axis of the double block 6 and the rod 1.

EFFECT: it is possible to adjust the specified distance with the help of movable elements 5, on which blocks 6 are mounted.

7 cl, 6 dwg