Gearbox lubrication is very important, good lubrication can play a sufficient protective effect on gears and bearings. For this reason, we must attach great importance to the lubrication of the gear box, in strict accordance with the specifications to maintain the lubrication system in the best condition for a long time. Gearboxes often use splash lubrication or forced lubrication, generally with forced lubrication is common. Therefore, it is particularly important to have a reliable lubrication system. Electric gear pump from the tank will be oil through the oil filter to the gear box lubrication pipeline, the gears and transmission parts of the lubrication, the pipeline is equipped with a variety of monitoring devices, to ensure that the gear box in operation will not be out of oil.
Start the lubricating oil pump before the gearbox operation, and wait for each lubrication point to be lubricated, and then start the gearbox after a period of time. When the ambient temperature is low, e.g. less than 10°C, the heater must be switched on to add oil to reach a predetermined temperature before putting the gearbox into operation. If the oil temperature is higher than the set temperature, e.g. 65゜C, the unit control system will cause the lubricant to enter the cooling line of the system, and then enter the gearbox after being cooled down by the cooler. The pipework is also fitted with a pressure controller and an oil level controller to monitor the normal supply of lubricant. If a malfunction occurs. The monitoring system will immediately send out an alarm signal, so that the operator can quickly determine the fault and be eliminated.
Requirements for the lubricant should be considered: 1) reduce friction and wear, with high load-bearing capacity, to prevent gluing; 2) to absorb shock and vibration; 3) to prevent fatigue pitting; 4) cooling, rust, corrosion resistance. Different types of transmission have different requirements. Wind power generation gear box belongs to the closed gear transmission type, its main form of failure is gluing and pitting, so in the selection of lubricants, the focus is to ensure that there is sufficient oil film thickness and boundary film strength. Because of the large temperature difference in the work, the requirements of the viscosity index is relatively high. In order to improve the gear's load-bearing capacity and impact resistance, it is also necessary to add some appropriate extreme pressure additives, but the additives have some side effects, in the selection must be careful. Gearbox manufacturers generally based on their own experience or experimental research to recommend a variety of different lubricants, gear oil is based on tooth contact stress and the use of environmental conditions selected.
During the operation of the gear box, it is necessary to regularly check the operating conditions to see if the operation is smooth; there is no vibration or abnormal noise; there is no leakage in all connections and pipelines, and there is no loosening of the joints; whether the oil temperature is normal. Regular replacement of lubricating oil, the first oil change should be carried out after the first 500 hours of operation, and the subsequent oil change cycle for every 5,000-10,000 hours of operation. In the process of operation should also pay attention to the changes in the oil quality in the box, regular sampling and testing, if the oil quality changes, too much oxidation products and more than a certain percentage, it should be replaced in a timely manner.
Henan Bocheng Import & Export Trading Co.
