Analysis of existing technologies for repairing pump parts

Abstract

EN: Pumps of the НШ-К modification are widely used in the hydraulic systems constructions due to their high durability in operating conditions. In the course of operation, gear pumps of the НШ-K type wear out: bearing and pressure clamps, gears, plates, and rubber seals fail. The bearing and thrust clamps are repaired by the method of repair sizes. This method is simple and cheap, but has a number of disadvantages: the service life of the parts is reduced, which means the service life of the pump as a whole; when drilling a well, the collar and half-rings under the trunnion of the gears increase in size, which requires the installation of enlarged repair gears, this makes it impossible to use the gears that were in operation; the use of new gears significantly increases the cost of repairing the pump as a whole.