High-speed floating ring bearing and rotor system support manner

Abstract

The invention discloses a high-speed floating ring bearing sleeving a rotor. The high-speed floating ring bearing comprises a bearing block and a floating ring. The bearing block is of a hollow cylinder structure. The floating ring is arranged in the hollow cylinder structure. When the rotor runs, the floating ring and the rotor relatively rotate, and the bearing block is provided with a bearing block oil passing hole and a bearing block oil passing groove. The floating ring is provided with a floating ring oil passing hole and a floating ring oil groove. Lubricating media enter the bearing block oil passing groove through the bearing block oil passing hole and enter the floating ring oil groove through the floating ring oil passing hole, and when the rotor rotates, a dynamic pressure oilfilm is formed to support the rotor. A high-speed floating ring bearing-rotor supporting system comprises the above high-speed floating ring bearing, and further comprises a floating ring and thrust combined bearing, a rotor system and an oil supply system.

Description

technical field [0001] The invention relates to a high-speed floating ring bearing, in particular to a high-speed floating ring bearing-rotor system support method. Background technique [0002] With the development of rotating machinery in the direction of high speed and high stability, higher requirements are put forward for support methods with large DN value, long life, impact resistance, and good high-speed stability. At present, high-precision rolling bearings, sliding bearings, magnetic levitation bearings and air bearings are mainly used in the support scheme of the rotor of the high-speed light-load transmission system. [0003] The DN value of the high-precision rolling bearing is 2×10 6 Below, once the limit speed of the bearing is exceeded, the bearing rollers will run abnormally under the action of centrifugal force, the life of the bearing will be greatly shortened, and the rotor will generate greater vibration. In severe cases, the bearing will be locked and ...

AI Technical Summary

Problems solved by technology

Because the viscosity of air is much lower than that of lubricating oil, its bearing capacity is small, and it is not suitable for working conditions under complex loads, especially in gear transmission systems. The fluctuation of gear meshing force will affect the high-speed stability of air bearings

The air bearing support scheme cannot bear complex loads, so there are not a large number of engineering applications at present, and its operation and maintenance costs are high, and the environmental requirements are also very strict

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