CN216478932U - Novel double-end-face type mechanical sealing structure - Google Patents

Abstract

The utility model relates to the technical field of mechanical sealing, in particular to a novel double-end-face mechanical sealing structure, which improves the sealing effect by matching a first sealing mechanism and a second sealing mechanism with a first sealing ring, a second sealing ring and a third sealing ring, and simultaneously clamps and fixes the right part of a spring by matching an outer tube and a clamping seat with a movable ring seat, so that the spring and the movable ring seat are conveniently integrated, the stability is higher, and the practicability is stronger; the rotating shaft is sleeved with the static ring seat, the rotating ring seat is sleeved with the right part of the rotating shaft, and the spring is arranged on the left part of the rotating ring seat; the middle part of the rotating shaft is sleeved with the connecting ring and is in contact with the left part of the spring, the first sealing ring is in sealing contact with the left part of the connecting ring, the second sealing ring is in contact with the left part of the first sealing ring, and the right part of the spring is positioned in the clamping groove.

Description

Novel double-end-face type mechanical sealing structure

Technical Field

The utility model relates to a mechanical seal technical field especially relates to a novel bi-polar face formula mechanical seal structure.

Background

The novel double-end-face mechanical sealing structure is an auxiliary device which is used for performing shaft sealing on rotating machinery in mechanical equipment in the industrial production and processing process and preventing fluid such as liquid or gas from leaking, and is widely used in the technical field of mechanical sealing; when the existing mechanical sealing structure is used, a shaft is sealed by matching a static ring seat and a movable ring seat with a spring; the existing mechanical sealing structure has a general sealing effect, and the stability of an internal spring is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a sealed effect is better, the fixed novel bi-polar face formula mechanical seal structure of the spring of being convenient for.

The utility model discloses a novel double-end-face mechanical seal structure, which comprises a rotating shaft, a static ring seat, a movable ring seat and a spring, wherein the static ring seat is sleeved at the middle part of the rotating shaft, the movable ring seat is sleeved at the right part of the rotating shaft, and the spring is arranged at the left part of the movable ring seat; the clamping seat is fixedly arranged at the right end inside the outer pipe, the inner end of the clamping seat is provided with a clamping groove, and the right part of the spring is positioned in the clamping groove; when using novel bi-polar face formula mechanical seal structure to carry out the bearing seal to rotating machinery, improve sealed effect through first sealing ring, second sealing ring and the first sealing mechanism of third sealing ring cooperation and second sealing mechanism, carry out the chucking through outer tube and cassette cooperation rotating ring seat to the right part of spring simultaneously and fix, the spring of being convenient for forms integratively with the rotating ring seat, and stability is higher, and the practicality is stronger.

Preferably, the first sealing mechanism comprises a first convex ring, a second convex ring and a third convex ring, the first convex ring is fixedly arranged at the right part of the static ring seat, the left part of the third sealing ring is provided with a first sealing groove, the first convex ring is positioned in the first sealing groove, the second convex ring is fixedly arranged at the right part of the static ring seat, the left part of the third sealing ring is provided with a second sealing groove, the second convex ring is positioned in the second sealing groove, the third convex ring is fixedly arranged at the right part of the static ring seat, the left part of the third sealing ring is provided with a third sealing groove, the third convex ring is positioned in the third sealing groove, and the first convex ring, the second convex ring and the third convex ring sequentially principle the axis of the rotating shaft; the sealing effect of the static ring seat and the third sealing ring is enhanced through the arrangement.

Preferably, the second sealing mechanism comprises a fourth convex ring and a fifth convex ring, the fourth convex ring is fixedly arranged at the left part of the third sealing ring and surrounds the outside of the third sealing groove, the right part of the stationary ring seat is provided with a fourth sealing groove, the fourth convex ring is positioned in the fourth sealing groove, the fifth convex ring is fixedly arranged at the left part of the third sealing ring, the right part of the stationary ring seat is provided with a fifth sealing groove, and the fifth convex ring is arranged in the fifth sealing groove; the sealing effect of the static ring seat and the third sealing ring is enhanced through the arrangement.

Preferably, the first sealing ring further comprises a first positioning head, the first positioning head is fixedly arranged at the left part of the third sealing ring, a first positioning groove is formed in the right part of the static ring seat, and the first positioning head is inserted into the first positioning groove leftwards; through the arrangement, the static ring seat and the third sealing ring are convenient to position and fix.

Preferably, the sealing device further comprises a second positioning head, the second positioning head is fixedly arranged at the right part of the stationary ring seat, a second positioning groove is formed in the left part of the third sealing ring, and the second positioning head is inserted into the second positioning groove rightwards; through the arrangement, the static ring seat and the third sealing ring are convenient to position and fix.

Preferably, the inner tube is fixedly arranged at the right part of the connecting ring, the guide strip is fixedly arranged outside the inner tube, the inner end of the outer tube is provided with a guide groove, and the guide strip is positioned in the guide groove and can slide left and right; through the arrangement, the connection ring and the spring are convenient to stabilize.

Preferably, the sealing device further comprises a positioning ring, the positioning ring is fixedly arranged at the right part of the first sealing ring, a ring groove is formed in the left part of the connecting ring, and the positioning ring is inserted into the ring groove rightwards; the stability of the first sealing ring and the connecting ring is kept through the arrangement.

Preferably, the second sealing ring is a rubber ring.

Compared with the prior art, the beneficial effects of the utility model are that: when using novel bi-polar face formula mechanical seal structure to carry out the bearing seal to rotating machinery, improve sealed effect through first sealing ring, second sealing ring and the first sealing mechanism of third sealing ring cooperation and second sealing mechanism, carry out the chucking through outer tube and cassette cooperation rotating ring seat to the right part of spring simultaneously and fix, the spring of being convenient for forms integratively with the rotating ring seat, and stability is higher, and the practicality is stronger.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged schematic view of A in FIG. 1;

FIG. 3 is an enlarged schematic view of B of FIG. 1;

FIG. 4 is an enlarged schematic view of C in FIG. 1;

in the drawings, the reference numbers: 1. a rotating shaft; 2. a stationary ring seat; 3. a movable ring seat; 4. a spring; 5. a connecting ring; 6. a first seal ring; 7. a second seal ring; 8. a third seal ring; 9. an outer tube; 10. a card holder; 11. a first convex ring; 12. a second convex ring; 13. a third convex ring; 14. a fourth convex ring; 15. a fifth bulge loop; 16. a first positioning head; 17. a second positioning head; 18. an inner tube; 19. a guide strip; 20. a retaining ring.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

A novel double-end-face mechanical sealing structure comprises a rotating shaft 1, a static ring seat 2, a movable ring seat 3 and a spring 4, wherein the static ring seat 2 is sleeved in the middle of the rotating shaft 1, the movable ring seat 3 is sleeved on the right part of the rotating shaft 1, and the spring 4 is arranged on the left part of the movable ring seat 3; the sealing device comprises a connecting ring 5, a first sealing ring 6, a second sealing ring 7, a third sealing ring 8, an outer tube 9, a clamping seat 10, a first sealing mechanism and a second sealing mechanism, wherein the connecting ring 5 is sleeved in the middle of a rotating shaft 1 and is in contact with the left part of a spring 4, the first sealing ring 6 is in sealing contact with the left part of the connecting ring 5, the second sealing ring 7 is in contact with the left part of the first sealing ring 6, the right part and the left part of the third sealing ring 8 are in sealing contact with the left part of the second sealing ring 7 and the right part of a static ring seat 2 respectively, the first sealing mechanism is arranged at the right part of the static ring seat 2, the second sealing mechanism is arranged at the left part of the third sealing ring 8, the outer tube 9 is fixedly arranged at the left part of a movable ring seat 3 and is sleeved in the right part of the spring 4, the clamping seat 10 is fixedly arranged at the right end inside of the outer tube 9, the inner end of the clamping seat 10 is provided with a clamping groove, the right part of the spring 4 is arranged in the clamping groove, and the first sealing mechanism comprises a first convex ring 11, a second sealing mechanism, a clamping groove and a clamping groove, A second convex ring 12 and a third convex ring 13, the first convex ring 11 is fixedly arranged at the right part of the static ring seat 2, the left part of the third sealing ring 8 is provided with a first sealing groove, the first convex ring 11 is positioned in the first sealing groove, the second convex ring 12 is fixedly arranged at the right part of the static ring seat 2, the left part of the third sealing ring 8 is provided with a second sealing groove, the second convex ring 12 is positioned in the second sealing groove, the third convex ring 13 is fixedly arranged at the right part of the static ring seat 2, the left part of the third sealing ring 8 is provided with a third sealing groove, the third convex ring 13 is positioned in the third sealing groove, the first convex ring 11, the second convex ring 12 and the third convex ring 13 sequentially principle the axis of the rotating shaft 1, the second sealing mechanism comprises a fourth convex ring 14 and a fifth convex ring 15, the fourth convex ring 14 is fixedly arranged at the left part of the third sealing ring 8 and surrounds the outside of the third sealing groove, the right part of the static ring seat 2 is provided with a fourth sealing groove, the fourth convex ring 14 is positioned in the fourth sealing groove, the fifth convex ring 15 is fixedly arranged at the left part of the third sealing ring 8, the fifth sealing groove is arranged at the right part of the static ring seat 2, and the fifth convex ring 15 is arranged in the fifth sealing groove; when using novel double-end-face mechanical seal structure to carry out the bearing seal to rotating machinery, improve sealed effect through first sealing ring 6, second sealing ring 7 and the first sealing mechanism of third sealing ring 8 cooperation and second sealing mechanism, carry out the chucking through outer tube 9 and cassette 10 cooperation rotating ring seat 3 simultaneously and fix spring 4's right part, spring 4 and rotating ring seat 3 formation of being convenient for are integrative, and stability is higher, and the practicality is stronger.

Example 2

A novel double-end-face mechanical sealing structure comprises a rotating shaft 1, a static ring seat 2, a movable ring seat 3 and a spring 4, wherein the static ring seat 2 is sleeved in the middle of the rotating shaft 1, the movable ring seat 3 is sleeved on the right part of the rotating shaft 1, and the spring 4 is arranged on the left part of the movable ring seat 3; the sealing device further comprises a connecting ring 5, a first sealing ring 6, a second sealing ring 7, a third sealing ring 8, an outer tube 9, a clamping seat 10, a first sealing mechanism and a second sealing mechanism, wherein the connecting ring 5 is sleeved in the middle of the rotating shaft 1 and is contacted with the left part of the spring 4, the first sealing ring 6 is contacted with the left part of the connecting ring 5 in a sealing manner, the second sealing ring 7 is contacted with the left part of the first sealing ring 6, the right part and the left part of the third sealing ring 8 are respectively contacted with the left part of the second sealing ring 7 and the right part of the static ring seat 2 in a sealing manner, the first sealing mechanism is arranged at the right part of the static ring seat 2, the second sealing mechanism is arranged at the left part of the third sealing ring 8, the outer tube 9 is fixedly arranged at the left part of the movable ring seat 3 and is sleeved at the right part of the spring 4, the clamping seat 10 is fixedly arranged at the right end inside of the outer tube 9, a clamping groove is arranged at the inner end of the clamping seat 10, the right part of the spring 4 is arranged in the clamping groove, a first positioning head 16 is fixedly arranged at the left part of the third sealing ring 8, the right part of the static ring seat 2 is provided with a first positioning groove, a first positioning head 16 is inserted into the first positioning groove leftwards, a second positioning head 17 is fixedly arranged at the right part of the static ring seat 2, the left part of the third sealing ring 8 is provided with a second positioning groove, the second positioning head 17 is inserted into the second positioning groove rightwards, the inner pipe 18 is fixedly arranged at the right part of the connecting ring 5, the guide strip 19 is fixedly arranged at the outer part of the inner pipe 18, the inner end of the outer pipe 9 is provided with a guide groove, the guide strip 19 is positioned in the guide groove and can slide leftwards and rightwards, the positioning ring 20 is fixedly arranged at the right part of the first sealing ring 6, the left part of the connecting ring 5 is provided with an annular groove, the positioning ring 20 is inserted into the annular groove rightwards, and the second sealing ring 7 is a rubber ring; when the rotating machinery is subjected to shaft sealing, the inner tube and the guide strip keep the stability of the connecting ring and the spring, and the first positioning head and the second positioning head are convenient for fixing the static ring seat and the third sealing ring.

As shown in fig. 1 to 4, the utility model discloses a novel bi-polar face formula mechanical seal structure, it is when using novel bi-polar face formula mechanical seal structure pairing rotation machinery to carry out the bearing seal, through first sealing ring 6, second sealing ring 7 and the first sealing mechanism of third sealing ring 8 cooperation and second sealing mechanism improvement sealed effect, it is fixed to carry out the chucking through outer tube 9 and the right part of cassette 10 cooperation rotating ring seat 3 to spring 4 simultaneously, the spring 4 of being convenient for forms an organic whole with rotating ring seat 3, and stability is higher, and the practicality is stronger.

The installation mode, the connection mode or the setting mode of the novel double-end-face mechanical sealing structure of the utility model are common mechanical modes, and the specific structures, models and coefficient indexes of all the components are self-contained technologies, so long as the beneficial effects can be achieved; the utility model discloses a novel bi-polar face formula mechanical seal structure's spring 4 is purchase on the market, this industry technical staff only need according to its subsidiary service instruction install and operate can, and need not the technical staff in this field to pay out creative work.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A novel double-end-face mechanical sealing structure comprises a rotating shaft (1), a static ring seat (2), a moving ring seat (3) and a spring (4), wherein the static ring seat (2) is sleeved in the middle of the rotating shaft (1), the moving ring seat (3) is sleeved on the right part of the rotating shaft (1), and the spring (4) is arranged on the left part of the moving ring seat (3); the sealing device is characterized by further comprising a connecting ring (5), a first sealing ring (6), a second sealing ring (7), a third sealing ring (8), an outer tube (9), a clamping seat (10), a first sealing mechanism and a second sealing mechanism, wherein the connecting ring (5) is sleeved in the middle of the rotating shaft (1) and is in contact with the left part of the spring (4), the first sealing ring (6) is in sealing contact with the left part of the connecting ring (5), the second sealing ring (7) is in contact with the left part of the first sealing ring (6), the right part and the left part of the third sealing ring (8) are in sealing contact with the left part of the second sealing ring (7) and the right part of the static ring seat (2) respectively, the first sealing mechanism is arranged at the right part of the static ring seat (2), the second sealing mechanism is arranged at the left part of the third sealing ring (8), the outer tube (9) is fixedly arranged at the left part of the movable ring seat (3) and is sleeved in the right part of the spring (4), the clamping seat (10) is fixedly arranged at the right end of the inner part of the outer tube (9), a clamping groove is formed in the inner end of the clamping seat (10), and the right part of the spring (4) is positioned in the clamping groove.

2. The novel double-end-face mechanical seal structure of claim 1, wherein the first seal mechanism comprises a first convex ring (11), a second convex ring (12) and a third convex ring (13), the first convex ring (11) is fixedly arranged at the right part of the stationary ring seat (2), the left part of the third seal ring (8) is provided with a first seal groove, the first convex ring (11) is positioned in the first seal groove, the second convex ring (12) is fixedly arranged at the right part of the stationary ring seat (2), the left part of the third seal ring (8) is provided with a second seal groove, the second convex ring (12) is positioned in the second seal groove, the third convex ring (13) is fixedly arranged at the right part of the stationary ring seat (2), the left part of the third seal ring (8) is provided with a third seal groove, the third convex ring (13) is positioned in the third seal groove, the first convex ring (11), the second convex ring (12) and the third convex ring (13) sequentially principle the axis of the rotating shaft (1).

3. A novel double-end-face mechanical seal structure, as claimed in claim 1, characterized in that the second seal mechanism includes a fourth convex ring (14) and a fifth convex ring (15), the fourth convex ring (14) is fixedly disposed at the left portion of the third seal ring (8) and surrounds the outside of the third seal groove, a fourth seal groove is disposed at the right portion of the stationary ring seat (2), the fourth convex ring (14) is disposed in the fourth seal groove, the fifth convex ring (15) is fixedly disposed at the left portion of the third seal ring (8), a fifth seal groove is disposed at the right portion of the stationary ring seat (2), and the fifth convex ring (15) is disposed in the fifth seal groove.

4. A novel double-end-face mechanical seal structure according to claim 1, further comprising a first positioning head (16), wherein the first positioning head (16) is fixedly arranged at the left part of the third seal ring (8), the right part of the stationary ring seat (2) is provided with a first positioning groove, and the first positioning head (16) is inserted into the first positioning groove leftwards.

5. A novel double-end-face mechanical seal structure as claimed in claim 1, further comprising a second positioning head (17), wherein the second positioning head (17) is fixedly arranged at the right portion of the stationary ring seat (2), the left portion of the third seal ring (8) is provided with a second positioning groove, and the second positioning head (17) is inserted into the second positioning groove rightward.

6. A novel double-end-face mechanical seal structure as claimed in claim 1, further comprising an inner tube (18) and a guide strip (19), wherein the inner tube (18) is fixedly arranged at the right part of the connecting ring (5), the guide strip (19) is fixedly arranged outside the inner tube (18), the inner end of the outer tube (9) is provided with a guide groove, and the guide strip (19) is positioned in the guide groove and can slide left and right.

7. A novel double-end-face mechanical seal structure according to claim 1, further comprising a positioning ring (20), wherein the positioning ring (20) is fixedly arranged at the right part of the first seal ring (6), the left part of the connection ring (5) is provided with a ring groove, and the positioning ring (20) is inserted into the ring groove rightwards.

8. A new double end-face mechanical seal according to claim 1, characterized in that the second sealing ring (7) is a rubber ring.

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