CN213776359U

CN213776359U - Mechanical seal structure with movable ring capable of being installed rapidly

Info

Publication number: CN213776359U
Application number: CN202022156340.7U
Authority: CN
Inventors: 刘义
Original assignee: Iger Bergman Mechanical Seal Zhangjiagang Co ltd
Current assignee: Iger Bergman Mechanical Seal Zhangjiagang Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-07-23
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a mechanical seal structure that rotating ring can carry out quick installation, include: the movable ring is provided with a sealing groove at the inner side of one end, close to the static ring, of the movable ring, a first O-shaped sealing ring is arranged in the sealing groove, a plurality of first limiting grooves are evenly formed in the inner side of the other end, far away from the static ring, of the movable ring along the axial direction, one end, close to the static ring, of each first limiting groove is sealed, the other end, far away from the static ring, of each first limiting groove is in an opening shape, a plurality of second limiting grooves matched with the first limiting grooves are evenly formed in the axial direction, far away from the inner side of the other end of the static ring, of the movable ring, a limiting driving block is arranged between the first limiting grooves and the second limiting grooves, and a limiting sleeve is arranged on the shaft, far away from one end of the static ring, of the movable ring.

Description

Mechanical seal structure with movable ring capable of being installed rapidly

Technical Field

The utility model relates to a mechanical seal technical field specifically is a mechanical seal structure that rotating ring can carry out quick installation.

Background

In mechanical seals, it is known that a rotating ring and a stationary ring are the most critical pair of components, the rotating ring rotating with a shaft and the stationary ring being connected to a stationary housing. The existing movable ring needs to be built with a shaft to follow axial deviation, the structure is complex, and the installation speed is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a mechanical seal structure that rotating ring can carry out quick installation has solved some rotating rings that have now and has built the component that can follow the axial skew between the axle, and the structure is complicated, the slow problem of installation rate.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a mechanical seal structure with a quick-install rotating ring, comprising: the sealing structure comprises a movable ring, a stationary ring, a shaft and a gland, wherein a sealing gap is limited between the movable ring and the stationary ring, a sealing groove is arranged at the inner side of one end of the movable ring close to the stationary ring, a first O-shaped sealing ring is arranged in the sealing groove, a plurality of first limiting grooves are uniformly arranged at the inner side of the other end of the movable ring far from the stationary ring along the axial direction, one end of each first limiting groove close to the stationary ring is sealed, the other end of each first limiting groove far from the stationary ring is in an open shape, a plurality of second limiting grooves matched with the first limiting grooves are uniformly arranged on the shaft at the inner side of the other end of the movable ring far from the stationary ring along the axial direction, a limiting driving block is arranged between the first limiting grooves and the second limiting grooves, a limiting sleeve is arranged on the shaft at one end of the movable ring far from the stationary ring, the stationary ring is embedded into the retaining ring through interference fit, the retaining ring is sleeved between the bearing ring and the shaft, and the bearing ring is connected with the gland through a fastening screw, the bearing ring is characterized in that a plurality of axial sliding grooves are uniformly formed in the outer side of one end, close to the moving ring, of the retaining ring along the axial direction, a plurality of axial sliding blocks matched with the axial sliding grooves are uniformly arranged on the inner side of one end, close to the moving ring, of the bearing ring, a plurality of spring grooves are uniformly formed in the bearing ring along the axial direction, springs matched with the spring grooves are arranged in the spring grooves, one ends, extending into the spring grooves, of the springs are abutted against the bearing ring, the other ends, extending out of the spring grooves, of the springs are abutted against the retaining ring, a second O-shaped sealing ring is arranged between the outer side of the other end, far away from the moving ring, of the retaining ring and the bearing ring, and a third O-shaped sealing ring is arranged between the outer side of the other end, far away from the moving ring, of the bearing ring and the gland.

Preferably, the axial length of the first limiting groove is greater than that of the second limiting groove, and one end of the first limiting groove close to the moving ring and one end of the second limiting groove close to the moving ring are located on the same radial plane.

Preferably, the limiting driving block is of a cuboid structure.

Preferably, the number of the first limiting grooves, the number of the second limiting grooves and the number of the limiting driving blocks are three respectively.

Advantageous effects

The utility model provides a mechanical seal structure that rotating ring can carry out quick installation. Compared with the prior art, the method has the following beneficial effects: the limiting driving blocks are respectively placed in the limiting grooves in the shaft, the limiting grooves in the moving ring slide to cover the limiting driving blocks, and finally the limiting sleeve is fixed on the shaft to limit the moving ring.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a schematic sectional structure view of a-a in fig. 1.

In the figure: 1. the sealing device comprises a movable ring, a fixed ring, a shaft, a gland, a sealing gap, a sealing groove, a first O-shaped sealing ring, a bearing ring, a fastening screw, a bearing ring, a bearing, and a bearing ring, a bearing ring, a bearing.

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 and fig. 2, the present invention provides a technical solution: a mechanical seal structure with a quick-install rotating ring, comprising: the sealing structure comprises a moving ring 1, a stationary ring 2, a shaft 3 and a gland 4, wherein a sealing gap 5 is limited between the moving ring 1 and the stationary ring 2, a sealing groove 6 is arranged at the inner side of one end of the moving ring 1 close to the stationary ring 2, a first O-shaped sealing ring 7 is arranged in the sealing groove 6, a plurality of first limiting grooves 8 are uniformly arranged at the inner side of the other end of the moving ring 1 far from the stationary ring 2 along the axial direction, one end of each first limiting groove 8 close to the stationary ring 2 is sealed, the other end of each first limiting groove 8 far from the stationary ring 2 is in an open shape, a plurality of second limiting grooves 9 mutually matched with the first limiting grooves 8 are uniformly arranged on the shaft 3 at the inner side of the other end of the moving ring 1 far from the stationary ring 2 along the axial direction, a limiting driving block 10 is arranged between the first limiting grooves 8 and the second limiting grooves 9, a limiting sleeve 11 is arranged on the shaft 3 at one end of the moving ring 1 far from the stationary ring 2, the stationary, the retaining ring 12 is sleeved between the bearing ring 13 and the shaft 3, the bearing ring 13 is connected with the gland 4 through a fastening screw 14, a plurality of axial sliding grooves 15 are uniformly arranged on the outer side of one end of the retaining ring 12 close to the movable ring 1 along the axial direction, a plurality of axial sliding blocks 16 which are matched with the axial sliding grooves 15 are uniformly arranged on the inner side of one end of the bearing ring 13 close to the movable ring 1, a plurality of spring grooves 17 are uniformly arranged in the bearing ring 13 along the axial direction, springs 18 which are matched with the spring grooves 17 are arranged in the spring grooves 17, one end of the spring 18 extending into the spring groove 17 is abutted against the bearing ring 13, the other end of the spring 18 extending out of the spring groove 17 is abutted against the retaining ring 12, a second O-shaped sealing ring 19 is arranged between the outer side of the other end of the retaining ring 12 far away from the movable ring 1 and the bearing ring 13, a third O-shaped sealing ring 20 is arranged between the outer side of the other end of the bearing ring 13 far away from the movable ring 1 and the gland 4.

Referring to fig. 1, in this example, the axial length of the first limiting groove 8 is greater than the axial length of the second limiting groove 9, and one end of the first limiting groove 8 close to the moving ring 1 and one end of the second limiting groove 9 close to the moving ring 1 are located on the same radial plane.

Referring to fig. 1 and 2, in this example, the limiting driving block 10 is a rectangular parallelepiped structure.

Referring to fig. 1 and 2, in this example, the number of the first limiting grooves 8, the number of the second limiting grooves 9, and the number of the limiting driving blocks 10 are three.

During installation, the static ring 2, the retaining ring 12 and the bearing ring 13 are fixed on the gland 4 firstly, the moving ring 1 is sleeved on the shaft 3 and slides right to abut against the static ring 2 and extrude the spring 18, when the moving ring 1 slides right to the first limiting groove 8 and is exposed, the limiting driving block 10 is placed in the first limiting groove 8, the moving ring 1 is loosened, the moving ring 1 is pushed to slide left under the action of the spring 18, the moving ring 1 is clamped on the limiting driving block 10 through the corresponding second limiting grooves 9 respectively, at the moment, the limiting driving block 10 is located between the first limiting groove 8 and the second limiting groove 9, the limiting sleeve 11 moves right on the shaft 3 to abut against the moving ring 1 and is fixed on the shaft 3, and the limiting sleeve 11 limits the moving ring 1 to complete installation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. A mechanical seal structure with a quick-install rotating ring, comprising: rotating ring (1), quiet ring (2), axle (3) and gland (4), inject sealed clearance (5) between rotating ring (1) and quiet ring (2), its characterized in that: a sealing groove (6) is arranged on the inner side of one end, close to the static ring (2), of the movable ring (1), a first O-shaped sealing ring (7) is arranged in the sealing groove (6), a plurality of first limiting grooves (8) are uniformly arranged on the inner side of the other end, far away from the static ring (2), of the movable ring (1) along the axial direction, one end, close to the static ring (2), of each first limiting groove (8) is sealed, the other end, far away from the static ring (2), of each first limiting groove (8) is in an open shape, a plurality of second limiting grooves (9) matched with the first limiting grooves (8) are uniformly arranged on a shaft (3) on the inner side of the other end, far away from the static ring (2), of the movable ring (1) along the axial direction, a limiting driving block (10) is arranged between the first limiting grooves (8) and the second limiting grooves (9), and a limiting sleeve (11) is arranged on a shaft (3) on one end, far away from the static ring (2), far away from the movable ring (1), the static ring (2) is embedded into a retaining ring (12) in an interference fit manner, the retaining ring (12) is sleeved between a bearing ring (13) and a shaft (3), the bearing ring (13) is connected with a gland (4) through a fastening screw (14), a plurality of axial sliding grooves (15) are uniformly arranged on the outer side of one end, close to a moving ring (1), of the retaining ring (12) along the axial direction, a plurality of axial sliding blocks (16) which are matched with the axial sliding grooves (15) are uniformly arranged on the inner side of one end, close to the moving ring (1), of the bearing ring (13), a plurality of spring grooves (17) are uniformly arranged in the bearing ring (13) along the axial direction, springs (18) which are matched with the spring grooves are arranged in the spring grooves (17), one ends, extending into the spring grooves (17), of the springs (18) are abutted against the bearing ring (13), the other ends, extending out of the spring grooves (17), of the springs (18) are abutted against the retaining ring (12), a second O-shaped sealing ring (19) is arranged between the outer side of the other end of the holding ring (12), which is far away from the moving ring (1), and the bearing ring (13), and a third O-shaped sealing ring (20) is arranged between the outer side of the other end of the bearing ring (13), which is far away from the moving ring (1), and the gland (4).

2. The mechanical seal of claim 1, wherein the rotating ring is capable of quick installation, and further comprising: the axial length of first spacing groove (8) is greater than the axial length of second spacing groove (9), the one end that first spacing groove (8) are close to rotating ring (1) and the one end that second spacing groove (9) are close to rotating ring (1) are located same radial plane.

3. The mechanical seal structure of claim 2, wherein the movable ring is capable of being quickly installed, and further comprising: the limiting driving block (10) is of a cuboid structure.

4. A mechanical seal of a quick-install rotating ring according to claim 3, wherein: the number of the first limiting grooves (8), the number of the second limiting grooves (9) and the number of the limiting driving blocks (10) are respectively three.