CN210164892U

CN210164892U - Coal pulverizer main shaft sealing device

Info

Publication number: CN210164892U
Application number: CN201921013567.7U
Authority: CN
Inventors: 张琳程
Original assignee: Yantai Guoan Electric Mechanical Equipment Co Ltd
Current assignee: Yantai Guoan Electric Mechanical Equipment Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-03-20
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a coal pulverizer main shaft sealing device comprises dynamic seal subassembly and static seal subassembly, dynamic seal subassembly and static seal subassembly all are located the axle in the frame and serve, be equipped with the hollow shaft on the frame, be equipped with in the frame and spout oil pipe, black gold tile and return oil pipe, dynamic seal subassembly is fixed in on the main shaft in the frame through the clamp and tightly is connected with the upper cover of frame and frame, be equipped with the flange on the static seal subassembly, the flange outside is equipped with Y type fender ash and seals, be equipped with the inner ring between flange and the static seal subassembly, flange and Y type keep off ash and seal and run through and lock on the frame jointly through the bolt. Through the design of dynamic seal assembly and static seal assembly, the shaft end sealing performance of the coal mill is effectively improved, the problem that lubricating oil leaks from the shaft end is solved, and the service life of the large-tile oil seal is prolonged.

Description

Coal pulverizer main shaft sealing device

Technical Field

The utility model relates to a coal pulverizer axle head sealing equipment technical field specifically is a coal pulverizer main shaft sealing device.

Background

The large tile oil seal of the double-inlet and double-outlet coal mill is sealed by an external wool felt. In the running process of the coal mill, the rotation, the axial movement and the vertical jumping are simultaneously generated. The felt seal wears. Wear results in lubricant leakage. This drawback is a ubiquitous problem in the industry. Although it is modified to some extent, it is difficult to completely eliminate the oil leakage.

The leakage of oil from the shaft end of the coal mill not only wastes lubricating oil, but also seriously affects civilized production and pollutes the environment. The enterprise is influenced to create a first-class standard acceptance.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a coal pulverizer main shaft sealing device has solved the sealed wearing and tearing of wool felt of traditional coal pulverizer axle head seriously, causes the problem of lubricating oil leakage.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a coal pulverizer main shaft sealing device comprises dynamic seal subassembly and static seal subassembly, dynamic seal subassembly and static seal subassembly all are located the axle in the frame and serve, be equipped with the hollow shaft on the frame, be equipped with in the frame and spout oil pipe, black gold tile and return oil pipe, dynamic seal subassembly is fixed in on the main shaft in the frame through the clamp and tightly is connected with the upper cover of frame and frame, be equipped with the flange on the static seal subassembly, the flange outside is equipped with Y type and keeps off grey and seal, be equipped with the inner ring between flange and the static seal subassembly, flange and Y type keep off grey and seal and run through and lock on the frame jointly through the bolt.

Preferably, the dynamic sealing assembly is a special-shaped sealing block, and the static sealing assembly is a rectangular sealing block.

Preferably, a rubber gasket is arranged on the connection end face of the Y-shaped dust blocking seal and the flange.

Preferably, the Y-shaped dust blocking seal is provided with an anticorrosive coating.

Preferably, the flange and the bolts are both made of stainless steel materials, and the bolts are hexagon bolts.

(III) advantageous effects

The utility model provides a coal pulverizer main shaft sealing device. The method has the following beneficial effects:

through the design of dynamic seal assembly and static seal assembly, the shaft end sealing performance of the coal mill is effectively improved, the problem that lubricating oil leaks from the shaft end is solved, and the service life of the large-tile oil seal is prolonged.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present invention;

fig. 2 is a schematic view of the local appearance structure of the present invention.

In the figure, a dynamic sealing component-1, a static sealing component-2, a hollow shaft-3, an oil injection pipe-4, a machine base-5, a black golden tile-6, a hoop-7, a flange-8, a bolt-9, an oil return pipe-10, a Y-shaped dust blocking seal-11 and an inner ring-12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, an embodiment of the present invention provides a technical solution: the utility model provides a coal pulverizer main shaft sealing device, comprises dynamic seal subassembly 1 and static seal subassembly 2, dynamic seal subassembly 1 and static seal subassembly 2 all are located the axle end in frame 5, be equipped with hollow shaft 3 on the frame 5, be equipped with in the frame 5 and spout oil pipe 4, black golden tile 6 and return oil pipe 10, dynamic seal subassembly 1 is fixed in on the main shaft in frame 5 through clamp 7 and is closely connected with the upper cover of frame 5 and frame 5, be equipped with flange 8 on the static seal subassembly 2, the flange 8 outside is equipped with Y type fender ash seal 11, be equipped with inner ring 12 between flange 8 and the static seal subassembly 2, flange 8 and Y type keep off ash seal 11 and run through and lock on frame 5 through bolt 9 jointly.

The dynamic sealing component 1 is a special-shaped sealing block, and the static sealing component 2 is a rectangular sealing block. The special-shaped sealing block can simultaneously realize the effect of sealing the base and the upper cover, and the rectangular sealing block can seal two sides of the shaft end.

And a rubber gasket is arranged on the joint end face of the Y-shaped dust blocking seal 11 and the flange 8. The rubber gasket improves the sealing performance of the Y-shaped dust blocking seal and the flange connection.

And the Y-shaped dust blocking seal 11 is provided with an anticorrosive paint. The corrosion resistance of the Y-shaped dust blocking seal is improved.

The flange 8 and the bolts 9 are both made of stainless steel, and the bolts 9 are hexagon bolts. The stainless steel material has good stability and is not easy to be oxidized and rusted.

The working principle is as follows: this axle head is sealed to adopt sound seal assembly, and dynamic seal assembly 1 rotates along with the main shaft, and with frame 5 and upper cover in close contact with, blocks the lubricating oil seepage, at the rotation in-process, has a little lubricating oil that spills to spill over, and the lubricating oil that spills over can be sealed by static seal assembly 2, and static seal assembly 2 is held by flange 8 pressure, and Y type ash blocking seal 11 is installed in the flange 8 outside, provides the protection for flange 8.

The utility model discloses a dynamic seal subassembly 1, static seal subassembly 2, hollow shaft 3, spout oil pipe 4, frame 5, black gold tile 6, clamp 7, flange 8, bolt 9, return oil pipe 10, Y type ash blocking seals 11, inner ring 12, the part that the part was universal standard spare or technical personnel in the field knows, and its structure and principle all are this technical staff and all can learn through the technical manual or learn through conventional experimental method, the utility model provides a problem be the sealed wearing and tearing of wool felt of traditional coal pulverizer axle head, cause the problem of lubricating oil leakage, the utility model discloses a design of dynamic seal subassembly and static seal subassembly, the effectual coal pulverizer axle head leakproofness that has improved has solved lubricating oil from the problem of axle head seepage, has also improved the life of big tile oil blanket simultaneously.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a coal pulverizer main shaft sealing device which characterized in that: the sealing device is composed of a dynamic sealing component (1) and a static sealing component (2), wherein the dynamic sealing component (1) and the static sealing component (2) are both positioned on the shaft end in a machine base (5), a hollow shaft (3) is arranged on the machine base (5), an oil spraying pipe (4), a black golden tile (6) and an oil return pipe (10) are arranged in the machine base (5), the dynamic sealing component (1) is fixed on a main shaft in the machine base (5) through a hoop (7) and is tightly connected with the machine base (5) and an upper cover of the machine base (5), a flange (8) is arranged on the static sealing component (2), a Y-shaped dust blocking seal (11) is arranged on the outer side of the flange (8), an inner ring (12) is arranged between the flange (8) and the static sealing component (2), the static sealing component (2), the flange (8) and the Y-shaped dust blocking seal (11) are penetrated through and locked on the machine base (5) through bolts (9).

2. The coal mill main shaft sealing device of claim 1, characterized in that: the dynamic sealing assembly (1) is a special-shaped sealing block, and the static sealing assembly (2) is a rectangular sealing block.

3. The coal mill main shaft sealing device of claim 1, characterized in that: and a rubber gasket is arranged on the joint end surface of the Y-shaped dust blocking seal (11) and the flange (8).

4. The coal mill main shaft sealing device of claim 1, characterized in that: and the Y-shaped dust blocking seal (11) is provided with an anticorrosive coating.

5. The coal mill main shaft sealing device of claim 1, characterized in that: the flange (8) and the bolts (9) are both made of stainless steel materials, and the bolts (9) are hexagon bolts.