Why is it that the excavator only needs half the gear oil for walking in one minute?
Why need gear oil?
This is because there are many sets of planetary gears in the walking reducer. When the excavator is walking, the gears inside are rotating at high speed, so it is necessary to add gear oil for lubrication.
Why only half the position?
The walking reducer is a closed space. When the reducer is filled with gear oil, the volume of gear oil will increase due to the "long heat and cold shrinkage" and the compressibility of gear oil itself is very small, so it is easy to break the oil seal.
In addition, when all the gears are immersed in gear oil, the resistance to operation will be greatly increased, friction will increase, and more heat will be generated.
When half gear oil is filled, because the air in the other half of the reducer has better compressibility, even if the temperature of the gear oil increases and the volume expands, the oil seal will not be extruded too much, and the closed state of the reducer can be maintained.