НЕКОТОРЫЕ ЗАКОНОМЕРНОСТИ ИЗНОСА СОПРЯГАЕМЫХ ПОВЕРХНОСТЕЙ, ОСНОВАНИЙ И СРЕДНИХ ПЕРЕМЫЧЕК ДЕТАЛЕЙ КОНИЧЕСКИХ ТРИБОСИСТЕМ

Abstract

The basics and average jumpers of the rotor and the body are studied, which perform the following functions: provide autonomous work of two sections; carry out autonomous operation of circulation of high and low pressure alkaline; is a frame in which other parts are held to support all functions of the high pressure feeder; support the difference in pressure between the sections. Thus, indicative drawings of the wear of the working surfaces of the rotor and the shell between the windows are formed by the action of alkali in the gap, and its value (at a constant gap) depends on the length of the gap. hus, indicative drawings of the wear of the working surfaces of the rotor and the shell between the windows are formed by the action of alkali in the gap, and its value (at a constant gap) depends on the length of the gap. With a minimum clearance gap between the rotor sections and the feeder housing, the flow rate and the flow rate of the alkali are maximal, and at the maximum length of the gap the flow rate and the flow rate of the alkali are minimal and, consequently, the wear is small. Due to the sinusoidal gap change law, the uneven wear of the working surfaces of the rotor and the body along the length of the circle can be explained. It has been established that on the two working surfaces of the rotor and the body there is a hydro-abrasive wear due to leakage of alkali in the mobile gap and shock hydraulic abrasive wear as a result of the formation of hydraulic shocks in the rotor pocket. The values of these types of wear depend on the time of compensation gap. Compensation for wear on these polling stations is higher than at other polling stations. The nature of the wear and tear of the bases and middle jumpers of the rotor and the body is revealed. The value of this wear is linear in time and its size is comparable to wear on other sections with compulsory micro-impulse gap compensation and not comparable (much less) when compensating for the critical gap. Wear on the bases and mid-joints of the rotor and the body occurs under the influence of hydraulic wear with the forced transfer of solid particles to the friction zone. With an uneven height of 8-10 microns and a minimum clearance of 50-100 microns, abrasive particles are constantly and coercive at these gaps due to cyclic hydraulic shocks. The presence of abrasive particles in the friction zone results in the destruction of both the particles itself and intercontact friction pairs of the surfaces of the bases and middle jumpers of the rotor and the case. As a result, there is a new kind of abrasive wear – hydro-abrasive deterioration in a narrow slit with the forced passage of solid particles into the friction zone.