Balance disc, balance drum, drum-disc assembly structure

The principle of balancing axial force is basically the same as that of using a sealing ring with a balance hole to balance axial force, and their calculation formulas are also essentially identical. The magnitude of the balancing force is determined by the diameter of the balancing drum, and therefore is fixed. The effect of the balance drum in balancing axial forces is the same as that of the balance tube; it is also used to reduce axial forces, but it cannot completely balance them. Unlike the balance drum, the balance disc can automatically balance axial forces, and this is due to the complementary nature of the two gaps in the balance disc (the radial gap and the axial gap). The balance disc relies on pressure differences generated by leakage to change the balancing force; without leakage, a complete balance of axial forces cannot be achieved. The working process of the balance disk is a process of motion balance.

Is it possible to have both a balance drum and a drum head structure at the same time? What are the differences between a balance drum, a balance disc, and a drum-disc structure? What is the formula for calculating the balancing force? Could you provide it?

The drum disk structure is a combination of a balance disk and a balance drum! The three will definitely not appear at the same time!