CN213419890U

CN213419890U - Holding type mechanical sealing device

Info

Publication number: CN213419890U
Application number: CN202022518294.0U
Authority: CN
Inventors: 陈金叶
Original assignee: Tianchang Jinzhu Mechanical Seal Co ltd
Current assignee: Tianchang Jinzhu Mechanical Seal Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-11
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a holding type mechanical sealing device, which comprises a snap ring arranged in the center of a shaft sleeve, wherein the snap ring is connected with the center of the shaft sleeve integrally; the right end of the shaft sleeve is provided with a movable ring seat, and the movable ring seat is clamped with the right side of the clamping ring; the right end of the movable ring seat is provided with a static ring, and the left end of the static ring is clamped with the right end of the movable ring seat; a front pressing shell and a rear pressing shell are respectively arranged outside the movable ring seat and the static ring, the left end of the inner wall of the front pressing shell is clamped with the left side of the clamping ring, and the right end of the inner wall of the rear pressing shell is clamped with the right end of the static ring; this mechanical seal is for consolidating the formula of holding tightly, and the inner seal compresses tightly through stationary blade and inner spring, has seted up outer groove and movable ring seat outer wall fixture block in the preceding pressure shell and has constituteed outer spring groove, and including the outer spring mounting, play further compressing tightly effect, the outer back pressure shell of seal assembly passes through bolt fixed connection with preceding pressure shell to further compress tightly inside spring, with movable ring seat and inside and outside movable ring, sealing washer and quiet ring zonulae occludens, fully improves sealing performance.

Description

Holding type mechanical sealing device

Technical Field

The utility model belongs to the technical field of mechanical equipment part, especially, relate to a formula mechanical seal device clasps.

Background

The mechanical sealing part belongs to one of precise mechanical basic elements with complex structures and is a key part of equipment such as various pumps, reaction synthesis kettles, turbine compressors, submersible motors and the like. The sealing performance and service life of a mechanical seal depends on many factors, such as the type of selection, the precision of the machine, proper installation and use, etc. The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, keeping fit and relatively sliding under the action of fluid pressure and elastic force or magnetic force of a compensation mechanism and the matching of an auxiliary seal. The auxiliary seal of the compensating ring is a mechanical seal of the metal bellows called bellows. There are mainly the following four types of components. a. Main sealing member: a dynamic ring and a static ring. b. Auxiliary sealing element: and (5) sealing rings. c. A pressing piece: a spring and a push ring. d. A transmission part: a spring seat and a key or a fixing screw.

Common sealing forms are gasket seals, packing seals, mechanical seals, non-contact seals, and shot-type pressure containment are common sealing forms. Wherein the packing seal should be considered most common, it also includes soft packing seals, hard packing seals and form packing seals. Molded packing seals include our common O-rings, Y-rings, oil seals, and the like. Non-contact seals include gap seals, labyrinth seals, floating seals, dynamic seals, magnetic fluid seals, and fully enclosed seals.

The mechanical seal has high temperature and low temperature resistant mechanical seal, high pressure and corrosion resistant mechanical seal, particle-resistant mechanical seal, light hydrocarbon medium mechanical seal suitable for easy vaporization and the like according to different working conditions and different medium properties, and different structural types and materials of the mechanical seal are selected according to different purposes. Mechanical seals are widely used in various enterprises. Such as water pump plants, printing and dyeing machinery plants, paper mills, power plants, chemical plants, pharmaceutical shipyards, and sewage treatment plants, and are widely used in hospitals, agriculture, equipment cooling, leather industry, heavy machinery, and the like. The main parameters for the type selection are: the pressure of the sealed cavity, the temperature of the fluid, the working speed, the characteristics of the fluid, the effective space for installing the seal and the like.

Most of the existing sealing assemblies on the market are single-layer mechanical sealing elements, and the tightly-held sealing devices are rare, so that a tightly-held mechanical sealing device is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a holding type mechanical sealing device, which comprises a snap ring arranged in the center of a shaft sleeve, wherein the snap ring is connected with the center of the shaft sleeve integrally; the right end of the shaft sleeve is provided with a movable ring seat, and the movable ring seat is clamped with the right side of the clamping ring; the right end of the movable ring seat is provided with a static ring, and the left end of the static ring is clamped with the right end of the movable ring seat; a front pressing shell and a rear pressing shell are respectively arranged outside the movable ring seat and the static ring, the left end of the inner wall of the front pressing shell is clamped with the left side of the clamping ring, and the right end of the inner wall of the rear pressing shell is clamped with the right end of the static ring; the front end edge of the front pressing shell is provided with a front reinforcing ring, and the front reinforcing ring is integrally connected with the right end edge of the front pressing shell; the rear pressing shell is characterized in that a rear reinforcing ring is arranged at the edge of the left end of the rear pressing shell, and the rear reinforcing ring is integrally connected with the edge of the left end of the rear pressing shell.

As a preferred technical scheme of the utility model, an inner spring groove is arranged in the center of the inner wall of the movable ring seat, and the inner spring groove is integrally connected with the center of the inner wall of the movable ring seat; interior industry spring is installed to interior spring inslot, interior industry spring cup joints with the axle sleeve right-hand member simultaneously with interior spring groove joint.

As a preferred technical scheme of the utility model, an inner rotating ring is installed at the right end of the inner wall of the rotating ring seat, and the inner rotating ring is sleeved with the right end of the inner wall of the rotating ring seat; interior rotating ring left side is provided with interior rotating ring sealing washer and stationary blade, interior rotating ring sealing washer right side cup joints with interior rotating ring left side, stationary blade right side and interior rotating ring sealing washer left side zonulae occludens to left side and interior industry spring right-hand member zonulae occludens.

As a preferred technical scheme of the utility model, the front reinforcing ring and the rear reinforcing ring are fixedly connected through bolts; the front pressing shell and the rear pressing shell are tightly connected through a front reinforcing ring and a rear reinforcing ring.

As a preferred technical scheme of the utility model, preceding shell inner wall right-hand member that compresses tightly is provided with outer spring groove, outer industry spring is installed to outer spring inslot, outer industry spring cup joints with the rotating ring seat outer wall.

As a preferred technical scheme of the utility model, rotating ring seat outer wall right-hand member is provided with the fixed block, fixed block and rotating ring seat outer wall right-hand member an organic whole are connected.

As a preferred technical scheme of the utility model, an outer movable ring is arranged at the joint of the movable ring seat and the stationary ring, and two sides of the outer movable ring are respectively and tightly connected with the right end of the movable ring seat and the left end of the stationary ring; and an outer moving ring sealing ring is arranged at the joint of the outer moving ring and the moving ring seat and is sleeved with the left side of the outer moving ring.

The utility model discloses following beneficial effect has:

this mechanical seal device is for consolidating the formula of holding tightly, double-deck rotating ring spring unit constitutes, the internal seal compresses tightly through stationary blade and inner spring, play the mechanical seal effect, outer spring groove is constituteed to the fixture block that has seted up outer groove and rotating ring seat outer wall surface in the preceding pressure shell, including outer spring mounting, play further to support the compacting effect, outer rotating ring can effectively improve the effect of sealed antiseep with outer rotating ring sealing washer, the outer back pressure shell of seal assembly compresses tightly the shell with preceding pressure shell respectively with the back of inner seal assembly both ends joint, through bolt fixed connection, thereby further compress tightly inside industry spring, with rotating ring seat and inside and outside rotating ring, further zonulae occludens of sealing washer and quiet ring, sealing performance has fully been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic structural view of the inner seal assembly of the present invention;

fig. 3 is a schematic sectional view of the present invention.

In the figure: 1. a front compression shell; 2. a rear compression shell; 3. a front reinforcement ring; 4. a rear reinforcement ring; 5. a shaft sleeve; 6. a snap ring; 7. a movable ring seat; 8. a stationary ring; 9. an inner spring groove; 10. an inner industrial spring; 11. a fixing sheet; 12. an inner moving ring sealing ring; 13. an inner rotating ring; 14. an outer spring groove; 15. an outer industrial spring; 16. a fixed block; 17. an outer rotating ring; 18. and an external moving ring sealing ring.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the present invention relates to a clasping type mechanical sealing device, which comprises a shaft sleeve 5, a clasp 6 arranged at the center of the shaft sleeve 5, wherein the clasp 6 is integrally connected with the center of the shaft sleeve 5; the right end of the shaft sleeve 5 is provided with a movable ring seat 7, and the movable ring seat 7 is clamped with the right side of the clamping ring 6; the right end of the movable ring seat 7 is provided with a static ring 8, and the left end of the static ring 8 is clamped with the right end of the movable ring seat 7; a front pressing shell 1 and a rear pressing shell 2 are respectively arranged outside the movable ring seat 7 and the static ring 8, the left end of the inner wall of the front pressing shell 1 is clamped with the left side of the clamping ring 6, and the right end of the inner wall of the rear pressing shell 2 is clamped with the right end of the static ring 8; the right end edge of the front pressing shell 1 is provided with a front reinforcing ring 3, and the front reinforcing ring 3 is integrally connected with the right end edge of the front pressing shell 1; the edge of the left end of the rear pressing shell 2 is provided with a rear reinforcing ring 4, and the rear reinforcing ring 4 is integrally connected with the edge of the left end of the rear pressing shell 2.

As shown in fig. 3, an inner spring groove 9 is formed in the center of the inner wall of the movable ring seat 7, and the inner spring groove 9 is integrally connected with the center of the inner wall of the movable ring seat 7; an inner industrial spring 10 is arranged in the inner spring groove 9, and the inner industrial spring 10 is clamped with the inner spring groove 9 and is sleeved with the right end of the shaft sleeve 5; an inner rotating ring 13 is arranged at the right end of the inner wall of the rotating ring seat 7, and the inner rotating ring 13 is sleeved with the right end of the inner wall of the rotating ring seat 7; an inner moving ring sealing ring 12 and a fixing plate 11 are arranged on the left side of the inner moving ring 13, the right side of the inner moving ring sealing ring 12 is sleeved with the left side of the inner moving ring 13, the right side of the fixing plate 11 is tightly connected with the left side of the inner moving ring sealing ring 12, and the left side is tightly connected with the right end of the inner industrial spring 10; the front reinforcing ring 3 is fixedly connected with the rear reinforcing ring 4 through bolts; the front pressing shell 1 and the rear pressing shell 2 are tightly connected through a front reinforcing ring 3 and a rear reinforcing ring 4; an outer spring groove 14 is formed in the right end of the inner wall of the front pressing shell 1, an outer industrial spring 15 is installed in the outer spring groove 14, and the outer industrial spring 15 is sleeved with the outer wall of the movable ring seat 7; a fixed block 16 is arranged at the right end of the outer wall of the movable ring seat 7, and the fixed block 16 is integrally connected with the right end of the outer wall of the movable ring seat 7; an outer moving ring 17 is arranged at the joint of the moving ring seat 7 and the static ring 8, and two sides of the outer moving ring 17 are respectively and tightly connected with the right end of the moving ring seat 7 and the left end of the static ring 8; an outer moving ring sealing ring 18 is arranged at the joint of the outer moving ring 17 and the moving ring seat 7, and the outer moving ring sealing ring 18 is sleeved with the left side of the outer moving ring 17.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A tightly-holding type mechanical sealing device is characterized by comprising a shaft sleeve (5), wherein a clamping ring (6) is arranged in the center of the shaft sleeve (5), and the clamping ring (6) is integrally connected with the center of the shaft sleeve (5); a movable ring seat (7) is mounted at the right end of the shaft sleeve (5), and the movable ring seat (7) is clamped with the right side of the clamping ring (6); a static ring (8) is arranged at the right end of the movable ring seat (7), and the left end of the static ring (8) is clamped with the right end of the movable ring seat (7); a front pressing shell (1) and a rear pressing shell (2) are respectively arranged outside the movable ring seat (7) and the static ring (8), the left end of the inner wall of the front pressing shell (1) is clamped with the left side of the clamping ring (6), and the right end of the inner wall of the rear pressing shell (2) is clamped with the right end of the static ring (8); the front end edge of the front pressing shell (1) is provided with a front reinforcing ring (3), and the front reinforcing ring (3) is integrally connected with the right end edge of the front pressing shell (1); the rear pressing shell (2) is characterized in that a rear reinforcing ring (4) is arranged at the left end edge of the rear pressing shell (2), and the rear reinforcing ring (4) is integrally connected with the left end edge of the rear pressing shell (2).

2. The clasping type mechanical sealing device as claimed in claim 1, wherein the movable ring seat (7) is provided with an inner spring groove (9) at the center of the inner wall, and the inner spring groove (9) is integrally connected with the center of the inner wall of the movable ring seat (7); interior industry spring (10) are installed in interior spring groove (9), interior industry spring (10) cup joint with axle sleeve (5) right-hand member simultaneously with interior spring groove (9) joint.

3. The clasping type mechanical sealing device as claimed in claim 2, wherein the inner rotating ring (13) is mounted at the right end of the inner wall of the rotating ring seat (7), and the inner rotating ring (13) is sleeved with the right end of the inner wall of the rotating ring seat (7); interior rotating ring (13) left side is provided with interior rotating ring sealing washer (12) and stationary blade (11), interior rotating ring sealing washer (12) right side cup joints with interior rotating ring (13) left side, stationary blade (11) right side and interior rotating ring sealing washer (12) left side zonulae occludens to left side and interior industrial spring (10) right-hand member zonulae occludens.

4. A clasping type mechanical seal device according to claim 1, characterized in that the front reinforcement ring (3) and the rear reinforcement ring (4) are fixedly connected by bolts; the front compaction shell (1) and the rear compaction shell (2) are tightly connected through a front reinforcing ring (3) and a rear reinforcing ring (4).

5. The clasping type mechanical sealing device as claimed in claim 1, wherein the right end of the inner wall of the front pressing shell (1) is provided with an outer spring groove (14), an outer industrial spring (15) is installed in the outer spring groove (14), and the outer industrial spring (15) is sleeved with the outer wall of the movable ring seat (7).

6. The clasping type mechanical sealing device as claimed in claim 1, wherein a fixed block (16) is arranged at the right end of the outer wall of the movable ring seat (7), and the fixed block (16) is integrally connected with the right end of the outer wall of the movable ring seat (7).

7. The clasping type mechanical sealing device as claimed in claim 1, wherein an outer rotating ring (17) is installed at the joint of the rotating ring seat (7) and the stationary ring (8), and two sides of the outer rotating ring (17) are respectively and tightly connected with the right end of the rotating ring seat (7) and the left end of the stationary ring (8); the joint of the outer moving ring (17) and the moving ring seat (7) is provided with an outer moving ring sealing ring (18), and the outer moving ring sealing ring (18) is sleeved with the left side of the outer moving ring (17).