HammerThe working conditions of the crusher are very complex, and sometimes the ring mirror is more extreme. In order to better ensure the normal application of the breaker and tools in the process of subsequent construction, the interference of the ring mirror to the crusher must also be considered, including temperature factors.
In the process of working, the temperature of each component is in its own normal working range. For example, the temperature of the general cooling circulating water is 80-90 degrees Celsius, and the temperature of the hydraulic transmission system software gear oil is 30-60 degrees Celsius. If the temperature In the process of being less than or exceeding this range, the damage of parts will be accelerated, resulting in mildew of the grease, resulting in changes in the characteristics of raw materials, etc. Experiments show that the main drive system gears and rolling bearings of various construction machinery and equipment are heated at 5 degrees Celsius. The damage under the action of grease is 10-12 times that under the action of grease at 3 degrees Celsius.
Due to the over-temperature expansion of the hydraulic transmission system, the original normal physical health is destroyed, and the moving parts are vacant, resulting in a continuous increase in frictional resistance, and the hydraulic solenoid valve is more likely to be blocked. The equipment is damaged and not lifted for a short period of time. As a result, the pump, valve, motor and other high-precision interaction surfaces are damaged too early, making them wrong or discarded.
In the process of repairing the sealing ring ineffectively, it will be seen that all the axial ends have cracks and micro-cracks, especially the friction auxiliary ring made of low heat transfer coefficient and ductile raw materials is more prone to thermal fracture noodle.
In general, this is all the interference of the working temperature on the breaker. Therefore, systematic preventive measures can be adopted to reasonably reduce the occurrence of mechanical failures.