Magnetic liquid sealing structure capable of directly observing liquid surface shape
A technology of magnetic liquid and sealing structure, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc.
Pending Publication Date: 2022-04-12
WENZHOU UNIVERSITY
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Problems solved by technology
In the literature "Research on Magnetic Liquid Seal under High-speed Working Conditions", scholars proposed a magnetic liquid static seal structure for observing the shape of the liquid film, but this device can only be regarded as an analog structure of the magnetic liquid static seal. The seal is still different, so the device that can detect the liquid surface shape and surface temperature of the magnetic liquid is of great significance for the in-depth study of the magnetic liquid seal
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Embodiment
[0022] Embodiment: a magnetic liquid sealing structure that can directly observe the shape of the liquid surface, as attached figure 1 And attached Figure 4 As shown, it includes a shell 1, and the top of the shell 1 is provided with a sealing cavity cover 2; the shell 1 has an installation cavity 3, as shown in the attached figure 2 As shown, the upper end and the lower end of the installation cavity 3 are respectively provided with an upper bearing 4 and a lower bearing 5 arranged on the corresponding side shoulders, and the upper bearing 4 and the lower bearing 5 are jointly provided with a stepped shaft 6 which is axially arranged and connected in rotation , by setting the bearings in the upper bearing 4 and the lower bearing 5 to realize rotation, the bottom of the upper bearing 4 is provided with an upper spacer 7, and the top of the lower bearing 5 is provided with a C-shaped lower spacer 8 that is rotationally connected, and the upper spacer 7 and There is a gap bet...
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The invention discloses a magnetic liquid sealing structure capable of directly observing the shape of a liquid level, which comprises a shell (1), and a sealing cavity cover (2) is arranged at the top of the shell (1); a mounting cavity (3) is formed in the shell (1), an upper bearing (4) and a lower bearing (5) are arranged at the upper end and the lower end of the mounting cavity (3) respectively, a stepped shaft (6) which is axially arranged and rotatably connected is arranged in the upper bearing (4) and the lower bearing (5) jointly, an upper spacer bush (7) is arranged at the bottom of the upper bearing (4), and a C-shaped lower spacer bush (8) which is rotatably connected is arranged at the top of the lower bearing (5). Gaps are reserved between the upper spacer bush (7) and the stepped shaft (6) and between the lower spacer bush (8) and the stepped shaft (6); the change process of the magnetic liquid film in the pressure loading process can be directly observed, and research on a magnetic liquid sealing pressure transmission mechanism and a failure mechanism is effectively helped.
Description
technical field [0001] The invention relates to the field of sealing structures, in particular to a magnetic liquid sealing structure capable of directly observing the shape of a liquid surface. Background technique [0002] As a young and vigorous technology, magnetic liquid seal has the irreplaceable advantages of other traditional seals such as zero leakage, long life and high reliability. It is very suitable for the development of high-speed sealing conditions in some special fields. Under high-speed working conditions, in order to form a closed magnetic circuit and increase the magnetic induction in the gap, the pole piece and the rotating shaft must be processed with materials with good magnetic permeability, but there is no transparent magnetic conductive material at present, and the magnetic liquid in the sealing gap will Blocked by the pole piece, the shape change of the liquid film of the magnetic liquid cannot be directly observed. The sealing gap is too small, a...
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IPC IPC(8): F16J15/43F16J15/16
Inventor 陈一镖尧遥魏乂兼倪陈义李德才
Owner WENZHOU UNIVERSITY