During regular operation, a robot planetary gearbox achieves a maximum efficiency of 98%, with 2% of the input energy being lost as heat. This loss mainly comes from the friction between the sealing coil and the bearings, leading to an increase in the gearbox's internal temperature. Sometimes, the external operating temperature can also raise the internal temperature of the gearbox. The internal temperature directly limits the output torque and speed.
So, how can we reduce the internal pressure of the planetary gearbox?
A planetary gearbox is a commonly used transmission device that achieves reduction through internal gear transmission. The internal pressure of the planetary gearbox is one of the important factors that affect its normal operation. Next, we will introduce the reasons that affect the internal pressure of the planetary gearbox.
First, the internal pressure of the planetary gearbox is affected by external loads. In practical work, the planetary gearbox usually needs to bear loads from external equipment, such as robotic arms and conveyor belts. These loads directly act on the internal components of the planetary gearbox, causing an increase in internal pressure. Therefore, external loads are one of the important reasons that affect the internal pressure of the planetary gearbox.
Second, the quality and quantity of the internal lubricating oil of the planetary gearbox also affect its internal pressure. Lubricating oil plays a very important role inside the planetary gearbox. It can reduce friction between components, lower the temperature, and protect components from wear.
If the quality and quantity of the lubricating oil are insufficient, it will cause an increase in the internal pressure of the planetary gearbox, and even lead to malfunctions. Therefore, the reasonable selection and maintenance of lubricating oil are crucial to maintaining the internal pressure stability of the planetary gearbox.
Additionally, the internal temperature of the planetary reducer also affects its internal pressure. In high-temperature environments, the internal components of the planetary gearbox are prone to expansion, leading to an increase in internal pressure.
In low-temperature environments, the viscosity of the lubricating oil increases, which also affects the balance of internal pressure. Therefore, controlling the internal temperature of the planetary gearbox is an important means of maintaining its internal pressure stability.
Finally, the sealing of the internal components of the planetary gearbox also affects its internal pressure. If the seals inside the planetary gearbox are damaged or aged, it will cause internal pressure leakage, thereby affecting its normal operation. Therefore, regular inspection and replacement of the seals of the planetary gearbox are necessary measures to maintain its internal pressure stability.
It is important to note that the temperature and pressure changes inside the gearbox during high-speed operation directly affect its output, long-term rotational speed, and service life. IP ball bearings and sealing rings are used for the input end and output shaft of the 65-level planetary gearbox, but they also affect the temperature and pressure changes inside the gearbox.