Small rotary drilling rig is an important machine for building foundation construction, and plays an irreplaceable role in housing construction, bridges, tunnels, slope protection and other projects. During the use of rotary drilling rigs, various problems will occur over time. The problem of high temperature is a failure phenomenon that we often encounter in maintenance. Because it has a great impact on the performance and life of the machine, it is often difficult to eliminate it. The problem of high temperature in summer has brought great trouble to the users of rotary drilling rigs.
The high temperature of rotary drilling rig is generally divided into gearbox (splitter box) temperature is too high; Excessive temperature of hydraulic oil; Engine engine coolant temperature is too high (commonly known as high water temperature). The reason for the high temperature of the gearbox is relatively simple, the main reasons are the size and shape of the bearing or gear and shell are not standard, the lubricating oil is not qualified or the oil level is not appropriate, etc.
High engine water temperature: improper ignition timing, insufficient engine power, heat dissipation system failure will cause engine water temperature is too high. In the excavator before the common rail injection diesel engine, because the hydraulic oil radiator is installed in the upstream of the water tank cooling wind, the overheating of the hydraulic oil will also cause the water temperature to be too high.
The oil radiator failure makes the oil temperature rise rapidly, resulting in a significant decline in lubrication performance, which makes the engine internal parts running resistance greatly increased and consumed a lot of power; In addition, because the oil temperature is too high, the cooling effect of the oil itself almost disappears, which further increases the engine temperature.
Engine crankshaft deformation, crankshaft clearance is too small will also cause high temperature because of the engine itself power consumption is too large. Failure of hydraulic variable control system can also cause engine water temperature to be too high.
Gookma Technology Industry Company Limited is a hi-tech enterprise and a leading manufacturer of rotary drilling rig, concrete mixer and concrete pump in China. You are welcome to contact Gookma for further inquiry!
Post time: Jun-17-2022
