CN219954228U

CN219954228U - Dry-abrasion-resistant mechanical sealing element

Info

Publication number: CN219954228U
Application number: CN202321352498.9U
Authority: CN
Inventors: 李江
Original assignee: Suzhou Boyman Fluid Technology Co ltd
Current assignee: Suzhou Boyman Fluid Technology Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-11-03
Anticipated expiration: 2033-05-31

Abstract

The utility model relates to the technical field of mechanical sealing elements and discloses a dry-abrasion-resistant mechanical sealing element which comprises a rotating shaft main body, a static ring and a moving ring, wherein the static ring and the moving ring are respectively arranged on an outer cylinder of the rotating shaft main body, one end of the static ring, which is close to the moving ring, is provided with an annular limiting ring groove, one end of the moving ring, which is close to the static ring, is provided with a wear-resistant steel ring which is in sliding connection with the inside of the limiting ring groove, and the inner installation bottom surface of the limiting ring groove is provided with a ring of elastic ring.

Description

Dry-abrasion-resistant mechanical sealing element

Technical Field

The utility model relates to the technical field of mechanical sealing elements, in particular to a dry-grinding-resistant mechanical sealing element.

Background

The sealing of the mechanical seal mainly comprises sealing between a rotating shaft and a sealing element, between a moving ring and a static ring of the sealing element and between the sealing element and a mounting hole site. When the working surface of the moving ring and the working surface of the stationary ring are operated at a relatively high speed, since the power of the rotating ring is generally from the main shaft of the motor, vibration during rotation is unavoidable and the frequency of vibration is generally high.

The contact area between the static ring and the moving ring of the existing mechanical sealing device is larger, the friction coefficient is larger, the contact surface between the moving ring and the static ring is easy to wear, the moving ring and the static ring are required to be replaced when overhauling, and the wear resistance is poor.

To this end we propose a dry-wear resistant mechanical seal.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a dry-grinding-resistant mechanical sealing element, which solves the problems.

Technical proposal

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a wear-resisting mechanical seal spare that grinds futilely, includes pivot main part, quiet ring and moving ring set up respectively on the outer cylinder of pivot main part, quiet ring is close to the one end of moving ring and has seted up and be annular spacing annular, and the moving ring is close to the one end of quiet ring and installs the wear-resisting steel ring with spacing annular inside sliding connection, and the internally mounted bottom surface of spacing annular installs round elastic ring.

Preferably, the outer side of the elastic ring is provided with anti-skid patterns.

Preferably, the outside of pivot main part is the annular and has seted up the butt joint recess that corresponds with the inboard surface of rotating ring, and the spacing groove that corresponds inside and outside round and the butt joint recess is seted up to the outside of rotating ring, and the inside of every spacing groove all threaded connection has the gim peg, and the front end of gim peg extends to the inside fixed rotating ring in the pivot main part of corresponding butt joint recess.

Preferably, the inner side of the limit groove is sleeved with a sealing ring, and the opening of the limit groove is sealed through the sealing ring.

Preferably, the clamping grooves are formed in the annular mode on the two end wall surfaces of the inner side of the limiting groove, and a circle of protrusions for clamping the corresponding clamping grooves are symmetrically arranged on the two sides of the sealing ring.

Advantageous effects

Compared with the prior art, the utility model provides a dry-grinding-resistant mechanical sealing element, which has the following beneficial effects:

(1) The anti-slip elastic ring is arranged on the inner surface of the limiting ring groove, the anti-slip elastic ring is firstly in elastic contact with the elastic ring when the inner part of the limiting ring groove slides, the abrasion-resistant effect between the static ring and the moving ring is improved, and the abrasion resistance between the static ring and the moving ring can be continued by replacing the elastic ring in the limiting ring groove when equipment is overhauled and maintained.

(2) The sealing ring is arranged in the limiting groove, so that the outer side of the fixing bolt fixed in the limiting groove is shielded and sealed through the sealing ring, the solution in the limiting groove is prevented from being infiltrated into the equipment to contact the head of the fixing bolt, the fixing bolt is prevented from rusting, and meanwhile, the fixing bolt is prevented from falling off from the inner side wall surface of the limiting groove due to vibration and is prevented from scraping and colliding with the inner side wall surface of the equipment.

(3) The draw-in groove has been seted up through the inboard of spacing groove, when the sealing washer was sealed the open-top of spacing groove, in order to prevent that the rotating ring from receiving vibrations and leading to outside protruding and the equipment inner chamber surface of spacing inslot sealing washer to take place sliding friction, install the protruding with corresponding spacing inslot internal fixation usefulness in the both sides of sealing washer, can be with the sealing washer stable installation at the inside seal of spacing groove.

Drawings

FIG. 1 is a front view of a mechanical seal of the present utility model;

FIG. 2 is a rear exploded view of the mechanical seal of the present utility model;

FIG. 3 is a side cross-sectional view of the mechanical seal of the present utility model;

FIG. 4 is a front exploded view of the mechanical seal of the present utility model;

fig. 5 is a schematic side cross-sectional view of a second embodiment of the present utility model.

In the figure: 1. a rotating shaft main body; 2. a stationary ring; 3. a moving ring; 4. a limit groove; 5. a fixing bolt; 6. a seal ring; 7. a butt joint groove; 8. a limit ring groove; 9. a wear-resistant steel ring; 10. an elastic ring; 11. a clamping groove; 12. a protrusion.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one: the utility model provides a dry-grinding resistant mechanical seal, as shown in fig. 1-4, a dry-grinding resistant mechanical seal, includes pivot main part 1, quiet ring 2 and moving ring 3 set up respectively on the outer cylinder of pivot main part 1.

An annular limiting ring groove 8 is formed in one end, close to the moving ring 3, of the stationary ring 2, a wear-resistant steel ring 9 in sliding connection with the inner portion of the limiting ring groove 8 is arranged in one end, close to the moving ring 2, of the moving ring 3, a circle of elastic ring 10 is arranged on the inner installation bottom surface of the limiting ring groove 8, and anti-slip patterns are formed in the outer side of the elastic ring 10 in order to improve the anti-slip effect between the elastic ring 10 and the wear-resistant steel ring 9.

The outside of pivot main part 1 is annular offered and is docked recess 7 that corresponds with moving ring 3 inboard surface, and the spacing groove 4 that corresponds inside and outside round and docking recess 7 are offered in moving ring 3's outside, and the inside equal threaded connection of every spacing groove 4 has dead bolt 5, and the front end of dead bolt 5 extends to the inside fixed moving ring 3 on pivot main part 1 of corresponding docking recess 7.

The inner side of the limit groove 4 is sleeved with a sealing ring 6, and the opening of the limit groove 4 is sealed through the sealing ring 6; through being provided with sealing washer 6 in the inside of spacing groove 4, can shelter from the sealing washer 6 with fixing in the inside dead bolt 5 outsides of spacing groove 4 and seal, avoid the inside solution contact dead bolt 5's of infiltration in the spacing groove 4 of equipment head, lead to the dead bolt 5 to take place rusty condition to take place, also avoid the dead bolt 5 to receive vibrations to drop from spacing groove 4 inside and take place to scrape the colored collision with equipment inside wall face simultaneously.

In the second embodiment, as shown in fig. 5, on the basis of the first embodiment, clamping grooves 11 are formed in annular shape on both end wall surfaces of the inner side of the limiting groove 4, and a circle of protrusions 12 for clamping the corresponding clamping grooves 11 are symmetrically arranged on both sides of the sealing ring 6; the clamping groove 11 is formed in the inner side of the limiting groove 4, when the top opening of the limiting groove 4 is sealed by the sealing ring 6, in order to prevent sliding friction between the outwards protruding part of the sealing ring 6 in the limiting groove 4 and the surface of the inner cavity of the device caused by vibration of the movable ring 3, the protrusions 12 for fixing the corresponding limiting groove 4 are arranged on the two sides of the sealing ring 6, and the sealing ring 6 can be stably arranged in the limiting groove 4.

The working principle of the utility model is as follows: through being provided with the wearing steel ring 9 in the junction of quiet ring 2 and moving ring 3 and sliding in corresponding spacing annular 8 inside, even receive the rotation of pivot main part 1 to take place vibrations between quiet ring 2 and the moving ring 3, moving ring 3 is spacing in spacing annular 8's inside through wearing steel ring 9, reduce quiet ring 2 and moving ring 3 contact terminal surface wearing and tearing, the elastic ring 10 of anti-skidding line has been seted up to spacing annular 8's inside setting surface simultaneously, wearing steel ring 9 carries out elastic contact with elastic ring 10 at first when spacing annular 8 is inside to slide, improve the wear-resisting effect between quiet ring 2 and the moving ring 3, when equipment overhauls and maintains, the inside elastic ring 10 of accessible replacement spacing annular 8 continues the wearability between quiet ring 2 and the moving ring 3.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wear-resisting mechanical seal spare futilely, includes pivot main part (1), quiet ring (2) and rotating ring (3) set up respectively on the outer cylinder of pivot main part (1), its characterized in that: an annular limiting ring groove (8) is formed in one end, close to the moving ring (3), of the stationary ring (2), a wear-resistant steel ring (9) in sliding connection with the inside of the limiting ring groove (8) is arranged at one end, close to the stationary ring (2), of the moving ring (3), and a circle of elastic ring (10) is arranged on the bottom surface of the inner installation of the limiting ring groove (8).

2. A dry wear resistant mechanical seal as set forth in claim 1, wherein: the outer side of the elastic ring (10) is provided with anti-skid patterns.

3. A dry wear resistant mechanical seal as set forth in claim 1, wherein: the utility model discloses a rotating shaft, including pivot main part (1), fixed bolt (5) front end extends to corresponding butt joint recess (7) inside with rotating ring (3) fixed on pivot main part (1), butt joint recess (7) that corresponds with rotating ring (3) inside surface are offered in the outside of pivot main part (1), and round and butt joint recess (7) inside corresponding spacing groove (4) have been offered in the outside of rotating ring (3).

4. A dry wear resistant mechanical seal as set forth in claim 3 wherein: the inner side of the limit groove (4) is sleeved with a sealing ring (6), and the opening of the limit groove (4) is sealed through the sealing ring (6).

5. A dry wear resistant mechanical seal as set forth in claim 4 wherein: clamping grooves (11) are formed in the two end wall surfaces of the inner side of the limiting groove (4), and a circle of protrusions (12) for clamping the corresponding clamping grooves (11) are symmetrically arranged on the two sides of the sealing ring (6).