The need for good lubrication in photovoltaic pile drivers is essential for several reasons, or it offers various benefits. Let's analyze them together:

1. Reducing friction: This is the primary function of lubricant, applicable to equipment like photovoltaic pile drivers. The presence of a lubricating oil film can reduce friction resistance, decrease wear and tear, and prevent direct contact between the metal surfaces of transmission components.

2. Cooling and heat dissipation: In high-speed rotating parts, friction generates a significant amount of heat. If the excess heat is not dissipated, the temperature will continue to rise, leading to the burning of parts.

3. For the sealing and plugging of photovoltaic pile drivers, felt seals are installed on the sealed bearing caps because oil immersion can effectively seal.

4. Moreover, maintaining a good lubrication state in photovoltaic pile drivers plays a role in preventing rust. Open-air pile drivers are often exposed to the elements, and metal surfaces are prone to rusting.