CN1699800A

CN1699800A - Mechanical sealing device

Info

Publication number: CN1699800A
Application number: CN 200410014925
Authority: CN
Inventors: 郑小平
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-18
Filing date: 2004-05-18
Publication date: 2005-11-23

Abstract

The invention relates to a mechanical sealed-in unit. It comprises: an oil chamber end covering, a sloping oils gear ring and a grease ring. On the bottom of the oil chamber provided oil return holes, the out covering is fixed on the oil chamber covering and the inner hole forms a labyrinth seal with the sloping oil gear ring; on the outside of the sloping oil gear ring provided a grease ring and a ring oil slot is arranged on the inner hole wall of the out end covering, the ring oil slot is connected with oil return hole on the oil chamber covering.

Description

A kind of mechanical seal device

Technical field:

The present invention relates to the mechanical seal device of stress-free projecting shaft in the mechanical seal device, particularly machine oil chamber of axle of conventional machinery equipment.

Background technique:

At present, some machinery needs machine oil to come lubricating bearings, because compact structure, usually seal with skeleton oil sealing, and skeleton oil sealing is and the rotatingshaft contact seal, and after the oil sealing wearing and tearing, machine oil will leak, cause machine breakdown and befouling environment, skeleton oil sealing contacts also with rotatingshaft and can produce frictional resistance to axle simultaneously.

Summary of the invention:

The object of the present invention is to provide a kind of mechanical seal device of good sealing effect.

Solution of the present invention is: contain oil pocket end cap, inclined-plane disc and cut oil ring, the bottom of oil pocket end cap is provided with spill port, outer end cap is fixed on the oil pocket end cap, the endoporus place of outer end cap and inclined-plane disc form a labyrinth seal, the disc outside, inclined-plane is provided with cuts oil ring, the outer end cap inner hole wall is provided with an annular oil groove, and annular oil groove communicates with spill port on the oil pocket end cap.

The gap that 1 1-2mm is arranged between inclined-plane disc and the outer end cap.

The center of annular oil groove is below the outer end cap center.

Nothing is in contact with one another between the Sealing of the present invention, can be because of wearing and tearing do not cause inefficacy, and Sealing also not to the surface friction drag of axle, particularly because installation dimension is identical with skeleton oil sealing, can be used for the transformation of equipment simultaneously, with the radical cure oil leakage phenomenon.

Description of drawings:

Accompanying drawing has provided one embodiment of the present of invention:

Accompanying drawing is the structural representation of the embodiment of the invention;

Among the figure: the 1--oil pocket; 2--oil pocket end cap; The 3--outer end cap; The 4--bearing; 5--inclined-plane disc; The 6--labyrinth seal; The 7--axle; 8--pieces together cap; 9--cuts oil ring; The 10--annular oil groove; The 11--gap; The 12--spill port.

Embodiment:

Below in conjunction with accompanying drawing embodiments of the invention are described in detail:

The bottom of oil pocket end cap 2 is provided with spill port 12, outer end cap 3 is fixed on the oil pocket end cap 2, the endoporus place of outer end cap 3 and inclined-plane disc form a labyrinth seal 6, disc 5 outsides in inclined-plane are provided with cuts oil ring 9, outer end cap 3 inner hole walls are provided with an annular oil groove 10, the center of annular oil groove 10 is in the central lower of outer end cap 3, and annular oil groove 10 communicates with spill port 12 on the oil pocket end cap 2.The gap 11 that 1 1-2mm is arranged between inclined-plane disc 5 and the outer end cap 3.

During installation, the outer ring of bearing 4 is fixed in the endoporus of oil pocket end cap 2, and the inner ring of bearing 4 is fixed on the axle 7, and inclined-plane disc 5, section oil ring 9 usefulness are pieced together cap 8 and are pressed on the inner ring of bearing 4, makes inclined-plane disc 5, cuts oil ring 9 and together rotation of axle 7.When axle 7 rotations, overwhelming majority lubricant oil throws away through inclined-plane disc 5, and pushed back bearing 4 and flowed back to oil pocket 1, the gap 11 of lubricant oil between inclined-plane disc 5 and outer end cap 3 of trace, labyrinth seal 6 and reduced flow velocity, again when cutting oil ring 9, the protruding part that cuts on the oil ring 9 gets rid of annular oil groove 10 on the outer end cap 3 to remaining lubricant oil once more, and the spill port on oil pocket end cap 2 12 flows back to oil pocket 1 again.

Claims

1, a kind of mechanical seal device, the invention is characterized in and contain oil pocket end cap, inclined-plane disc and cut oil ring, the bottom of oil pocket end cap is provided with spill port, outer end cap is fixed on the oil pocket end cap, the endoporus place of outer end cap and inclined-plane disc form a labyrinth seal, the disc outside in inclined-plane is provided with cuts an oil ring, and the outer end cap inner hole wall is provided with an annular oil groove, and annular oil groove communicates with spill port on the oil pocket end cap.

2, a kind of mechanical seal device according to claim 1 the invention is characterized in the gap that 1 1-2mm is arranged between inclined-plane disc and the outer end cap.

3, a kind of mechanical seal device according to claim 1, the center that the invention is characterized in annular oil groove is below the outer end cap center.