CN212106920U

CN212106920U - Mechanical seal stationary ring

Info

Publication number: CN212106920U
Application number: CN202020080877.7U
Authority: CN
Inventors: 陈新
Original assignee: Ningbo Mix New Material Technology Co ltd
Current assignee: Ningbo Mix New Material Technology Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-12-08
Anticipated expiration: 2030-01-14

Abstract

The utility model relates to a mechanical seal quiet ring, including sealing ring and collar, the sealing ring sets up with collar is integrative, one side that the collar was kept away from to the sealing ring is provided with the seal face, be provided with lubricated recess on the seal face, lubricated recess sets up along seal face's inboard border circumference interval, it is close to lead the oil inclined plane one side of seal face has seted up a connection ring groove, all lubricated recesses of connection ring groove intercommunication. The utility model discloses the effect of wearing and tearing between quiet ring and the rotating ring has been reduced.

Description

Mechanical seal stationary ring

Technical Field

The utility model belongs to the technical field of mechanical seal's technique and specifically relates to a mechanical seal quiet ring is related to.

Background

The mechanical seal is a device for preventing fluid leakage, which is formed by keeping fit and relative sliding of at least one pair of end faces perpendicular to a rotating axis under the action of fluid pressure and elasticity of a compensating mechanism and the cooperation of an auxiliary seal. Present mechanical seal generally includes the rotating ring combination, quiet ring, sand control K type circle, the seal box, quiet ring holder, the cooling water injection well choke, spring holder and compression spring, during the installation, quiet ring compresses tightly with the rotating ring through compression spring on the spring holder, the realization is to the sealed between transmission shaft and the equipment, the joint is fixed between current quiet ring and the quiet ring holder, thereby make quiet ring keep static for quiet ring holder, but above-mentioned quiet ring is compressing tightly the back with the rotating ring, along with constantly rotating between the two, lead to taking place wearing and tearing between quiet ring and the rotating ring easily, lead to can't keep sealed between the lateral wall and the rotating ring of quiet ring.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mechanical seal quiet ring has the effect that has reduced the wearing and tearing between quiet ring and the rotating ring.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a mechanical seal quiet ring, includes sealing ring and collar, the sealing ring sets up with the collar is integrative, one side that the collar was kept away from to the sealing ring is provided with the seal face, be provided with lubricated recess on the seal face, lubricated recess sets up along seal face's inboard border circumference interval, the seal face is close to a connection annular has been seted up to one side of seal face, connect all lubricated recesses of annular intercommunication.

Through adopting above-mentioned technical scheme, during the use, the medium that is located the pump body can enter into lubricated recess through connecting the annular to permeate to realize between quiet ring and the rotating ring to the lubrication between quiet ring and the rotating ring, thereby reduced the frictional force when taking place relative rotation between rotating ring and the quiet ring, reduced the wearing and tearing of quiet ring, thereby ensured mechanical seal's sealing performance.

The utility model discloses further set up to: the inner wall of the sealing end face is provided with an oil guide inclined face, and the lubricating groove is formed in the guide inclined face.

Through adopting above-mentioned technical scheme, set up the guide inclined plane at the inner wall of seal face to after taking place wearing and tearing between rotating ring and quiet ring, the lubrication groove and the connection annular that are located on quiet ring all compress tightly with between the rotating ring, when having ensured the leakproofness, still can be to the transport lubrication between rotating ring and the quiet ring.

The utility model discloses further set up to: and a sealing element is arranged in the lubricating groove and comprises a limiting ring, the limiting ring is arranged in the lubricating groove, and the surface of the limiting ring is flush with the sealing end surface.

Through adopting above-mentioned technical scheme, set up the sealing member in lubricated recess, after taking place wearing and tearing between rotating ring and the quiet ring, the lubricated recess that is located on the quiet ring and the connection annular all compress tightly with between the rotating ring, and pressfitting between sealing member and the rotating ring that are located lubricated recess to play is to the sealing between rotating ring and the quiet ring.

The utility model discloses further set up to: the sealing element further comprises a sealing ring, an installation ring groove is formed in the side wall of the limiting ring, and the sealing ring is installed in the installation ring groove.

Through adopting above-mentioned technical scheme, installation sealing washer in the sealing member, during the use to make between rotating ring and the quiet ring can also seal through the sealing washer, thereby further promoted the leakproofness between rotating ring and the quiet ring.

The utility model discloses further set up to: the cross-section of the installation annular groove that sets up on the spacing ring is the rectangle, the cross-section of sealing washer is circular, the installation annular groove is close to with the sealing washer one side of spacing ring bottom forms the lubrication gap, the cooling gap intussuseption is filled with cooling lubricating oil.

By adopting the technical scheme, the cooling lubricating oil is arranged in the lubricating gap, when the movable ring and the static ring generate higher heat in high-speed rotation and the heat cannot be discharged only through the cooling liquid in the mechanical seal, the cooling lubricating oil in the cooling gap expands to enable the sealing ring to bear the outward repulsive thrust, the sealing ring is enabled to reduce the pressure between the movable ring and the static ring while the sealing performance between the movable ring and the static ring is ensured, so that the contact area between the movable ring and the static ring is reduced, the heat generation of the movable ring and the static ring in the relative rotation process is reduced, and the probability of deformation of the movable ring and the static ring due to overheating in the high-speed rotation process is reduced; and when internal pressure was too big, lubricating oil flowed out through the clearance between spacing ring and the sealing washer, played the lubrication action between quiet ring and the rotating ring.

The utility model discloses further set up to: and one side of the limiting ring, which faces the side wall of the lubricating groove, is provided with a sealing bulge.

Through adopting above-mentioned technical scheme, guaranteed the leakproofness between spacing ring and the lubricated recess lateral wall.

The utility model discloses further set up to: and one side of the mounting ring, which is far away from the limiting ring, is provided with a positioning groove.

Through adopting above-mentioned technical scheme, one side of keeping away from the spacing ring at the collar sets up positioning groove to make the collar can and quiet ring seat between carry out circumference location, thereby reduced wearing and tearing between quiet ring and the quiet ring seat.

The utility model discloses further set up to: the positioning grooves are symmetrically arranged on two sides of the mounting ring.

Through adopting above-mentioned technical scheme, set up the positioning groove symmetry in the both sides of collar to make the location between collar and the quiet ring seat more stable, and reduced the interact power between quiet ring seat and the collar, promoted the life of quiet ring seat and collar to a certain extent.

To sum up, the utility model discloses a beneficial technological effect does:

1. the mechanical seal static ring has the advantages that the seal section and the lubricating groove are arranged, so that the abrasion between the static ring and the dynamic ring is reduced;

2. the utility model has the advantages that the sealing performance of the static ring is further improved by arranging the sealing element;

3. above-mentioned utility model through setting up lubricated clearance and cooling oil, have and reduced the wearing and tearing between quiet ring and the rotating ring, promoted the life's of quiet ring and rotating ring effect.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a seal ring; 11. sealing the end face; 12. an oil guide inclined plane; 13. lubricating the groove; 14. a connecting ring groove; 2. a mounting ring; 21. a positioning groove; 3. a seal member; 31. a seal ring; 311. a sealing protrusion; 312. mounting a ring groove; 313. lubricating the gap; 314. cooling the lubricating oil; 32. and (5) sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to the attached drawing 1, the mechanical seal static ring comprises a seal ring 1 and a mounting ring 2, wherein the seal ring 1 and the mounting ring 2 are integrally arranged.

Referring to fig. 1 and 2, a sealing end surface 11 is arranged on one side of the sealing ring 1 away from the mounting ring 2, an oil guide inclined surface 12 is arranged on the inner wall of the sealing end surface 11, and a lubricating groove 13 is arranged on the oil guide inclined surface 12. The lubricating grooves 13 are circumferentially arranged at intervals along the inner side edge of the sealing end surface 11, one side of the oil guide inclined surface 12 close to the sealing end surface 11 is provided with a connecting ring groove 14, and the connecting ring groove 14 is communicated with all the lubricating grooves 13.

Be provided with sealing member 3 in the lubricated recess 13, sealing member 3 includes spacing ring 31 and sealing washer 32, and spacing ring 31 is installed in lubricated recess 13, and the surface and the sealing end face 11 of spacing ring 31 flush, and one side of spacing ring 31 orientation lubricated recess 13 lateral wall is provided with sealed protruding 311, and mounting ring groove 312 has been seted up to the lateral wall of spacing ring 31, and mounting ring groove 312's cross-section is the rectangle. The seal ring 32 is mounted in the mounting ring groove 312, and the cross section of the seal ring 32 is circular.

The mounting ring groove 312 and one side of the sealing ring 32 close to the bottom of the limit ring 31 form a lubricating gap 313, the cooling gap is filled with cooling lubricating oil 314, one side of the mounting ring 2 far away from the limit ring 31 is provided with positioning grooves 21, and the positioning grooves 21 are symmetrically arranged on two sides of the mounting ring 2.

The use principle of the embodiment is as follows: during the use, the medium that is located the pump body can enter into in the lubricated recess 13 through connecting annular 14 to permeate to realize between quiet ring and the rotating ring and to the lubrication between quiet ring and the rotating ring, thereby reduced the frictional force when taking place relative rotation between rotating ring and the quiet ring, reduced the wearing and tearing of quiet ring, thereby ensured mechanical seal's sealing performance.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a mechanical seal quiet ring, includes sealing ring (1) and collar (2), sealing ring (1) sets up its characterized in that with collar (2) an organic whole: one side that installing ring (2) was kept away from in sealing ring (1) is provided with seal end face (11), be provided with lubricated recess (13) on seal end face (11), inboard border circumference interval along seal end face (11) sets up lubricated recess (13), seal end face (11) are close to one side of seal end face (11) has been seted up one and has been connected annular (14), connect all lubricated recess (13) of annular (14) intercommunication.

2. A mechanical seal stationary ring according to claim 1, wherein: the inner wall of the sealing end face (11) is provided with an oil guide inclined plane (12), and the lubricating groove (13) is arranged on the guide inclined plane.

3. A mechanical seal stationary ring according to claim 2, wherein: be provided with sealing member (3) in lubricated recess (13), sealing member (3) include spacing ring (31), spacing ring (31) install in lubricated recess (13), the surface and the sealing end face (11) of spacing ring (31) flush.

4. A mechanical seal stationary ring according to claim 3, wherein: sealing member (3) still include sealing washer (32), mounting ring groove (312) have been seted up to the lateral wall of spacing ring (31), sealing washer (32) are installed in mounting ring groove (312).

5. The mechanical seal stationary ring of claim 4, wherein: the cross-section of the mounting ring groove (312) that sets up on spacing ring (31) is the rectangle, the cross-section of sealing washer (32) is circularly, mounting ring groove (312) are close to with sealing washer (32) one side of spacing ring (31) bottom forms lubricated clearance (313), lubricated clearance (313) intussuseption is filled with cooling lubricating oil (314).

6. The mechanical seal stationary ring of claim 5, wherein: and one side of the limiting ring (31) facing the side wall of the lubricating groove (13) is provided with a sealing protrusion (311).

7. The mechanical seal stationary ring of claim 6, wherein: and one side of the mounting ring (2) far away from the limiting ring (31) is provided with a positioning groove (21).

8. The mechanical seal stationary ring of claim 7, wherein: the positioning grooves (21) are symmetrically arranged on two sides of the mounting ring (2).