往复轴密封间隙内磁性液体流动状态的研究

Study on Flowing State of Magnetic Fluid in Seal Gap of Reciprocating Shaft

为了解决往复轴磁性液体密封中存在的问题 ,研究了往复轴以不同速度和行程运动时 ,密封间隙内磁性液体的流动状态 ,重点研究了往复轴密封间隙内磁性液体流动机理、往复轴运动所带走磁性液体的量、往复轴磁性液体密封的失效原因及往复轴磁性液体密封新结构的设计 .

In order to solve the problems that exit in the magnetic fluid sealing of reciprocating shaft, the magnetic fluid flow in the seal gap was studied when the reciprocating shaft moves with different velocities and strokes. The following were focused on the regular pattern of such flow, the loss quantity of magnetic fluid caused by the reciprocating motion shaft, the failure reasons of this magnetic fluid sealing and the design of a new structure for the magnetic fluid sealing of reciprocating shaft. The application indicates that the new structure is very effective in some occasions.