Hydrostatic drive system different sound judgment and common cause analysis

Hydrostatic drive system different sound judgment and common cause analysis
1 Introduction In order to ensure the best diesel engine oil, water temperature ranges, DF4 locomotive designed for high temperature hydrostatic transmission, two systems in addition to the temperature control valve operating temperature different from the temperature sensing element, the other constituent elements structural principle is the same, by the hydrostatic pumps, temperature control valves, safety valves, tanks, heat exchangers, hydrostatic motors and other pipe components (Figure 1). For various reasons, static hydrostatic drive 1 1 - Tank China; - hydrostatic pumps; 3 - exchanger; 4 - safety valve; 5 - temperature control valve; 6 - hydrostatic motor; 7 - cooling fan; 8 - blinds cylinder.  Hydraulic tube fittings system often appear different sound. If this phenomenon, the light has damaged parts, and in severe system failure, endangering the locomotive driving safety, resulting machine broken. Two different sound judgment and common analysis of 21 different sound Dongfeng 4 tank locomotive hydrostatic transmission oil tank is made of welded steel plate special box (Figure 2), it is installed at the bottom of the lower chamber a pair of diffuser effect nozzle, the nozzle bore has a taper. In the hydrostatic drive system when working with a certain pressure from the oil return line back into the oil chamber first, after flowing through the magnetic filter from the nozzle height