Analysis of the Manufacturability of the Design of the Crankshaft of the Plunger Pump NTP-175, Produced at PJSC “Izhneftemash”

Abstract

Currently, mining and processing of minerals plays an important role in the economy of the country. In conditions of creating artificial economic problems for the supply of high-quality equipment, there is a high demand for inexpensive plunger pumps with suitable output characteristics and a sufficiently high resource. High-pressure pumps, which create high productivity, are urgently needed in mining, chemical, processing and other industries. Domestic enterprises have long been producing this type of product in the required quantity in mass production. But even a well-established and mastered structure in production must be constantly improved to improve operational performance. In all areas of application of high-performance pumps, an increase in specific characteristics is required, and of course, everyone expects an increase in the life of this equipment. An important factor in the choice of such equipment by the operating organization is the price. Production costs consist not only of initial capital investments for the purchase of pumping equipment, but also the cost of operation and repairs. In the mining industry, transportation costs associated with long distances to remote mining sites and repair or operating bases account for most of the increase in production costs. In this case, the less obvious specific characteristics of power and performance in relation to weight and dimensions provide huge advantages when transporting such equipment to the place of operation. Thus, the improvement of such a product as a pumping unit should follow all the laws of the development of technical systems with an increase in specific characteristics, and finally, a reduction in cost, which can be obtained only by improving the manufacturability of this design in the conditions of existing production. Only by improving the design can an increase in technology and an increase in specific characteristics be achieved simultaneously. This study describes the stages of design testing for the manufacturability of one of the key elements of a plunger pump mass-produced at the PJSC “Izhneftemash”.