CN213655735U

CN213655735U - Prevent mechanical seal subassembly of leakage

Info

Publication number: CN213655735U
Application number: CN202022653505.1U
Authority: CN
Inventors: 刘香
Original assignee: John Borman Industrial Equipment Zhangjiagang Co ltd
Current assignee: John Borman Industrial Equipment Zhangjiagang Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-09
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a leakage-proof mechanical seal assembly, which relates to the field of mechanical seal assemblies and comprises a shaft sleeve, wherein the left side and the right side of the shaft sleeve are both provided with a fixed cylinder, the outer wall of the fixed cylinder and the outer wall of the shaft sleeve are both provided with corresponding threaded holes, and the threaded holes are internally connected with bolts; the top of a fixed cylinder is provided with a positioning plate, the center of the positioning plate is provided with a first opening corresponding to the shaft sleeve, the bottom of the positioning plate is abutted to the top of the fixed cylinder, the inner wall of the positioning plate is provided with a static ring, the bottom of the static ring is abutted to the top of the positioning plate, the upper surface of the positioning plate is provided with a movable ring, and the bottom of the movable ring is fixedly connected with a U-shaped clamping frame corresponding to the positioning plate. The utility model discloses can conveniently directly install rotating ring and quiet ring, improve mechanical seal assembly's packaging efficiency, and can conveniently compress tightly rotating ring and quiet ring each other when rotating ring and quiet ring rotation.

Description

Prevent mechanical seal subassembly of leakage

Technical Field

The utility model relates to a mechanical seal subassembly field, in particular to prevent mechanical seal subassembly of leakage.

Background

The mechanical seal is a universal shaft seal device, is commonly used for rotary fluid machinery such as pumps, compressors, reaction stirring kettles and the like, is also used for sealing gear boxes, valves, rotary joints, ship tail shafts and the like, and is a device for solving the problem of sealing between a rotary shaft and a machine body.

And when needs are installed quiet ring and rotating ring on the mechanical seal subassembly, separately install because of quiet ring and rotating ring, need find the clearance between quiet ring and the rotating ring when the installation, the installation accuracy is great, can't effectual directness install it to cause the influence to mechanical seal's packaging efficiency.

Therefore, it is desirable to provide a leak-proof mechanical seal assembly that solves the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent mechanical seal subassembly of leakage to what provide in solving above-mentioned background art separately installs because of quiet ring and rotating ring, need find the clearance between quiet ring and the rotating ring when the installation, and the installation accuracy is great, and unable effectual directness is installed it, thereby causes the problem of influence to mechanical seal's packaging efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: a leakage-proof mechanical seal assembly comprises a shaft sleeve, wherein the left side and the right side of the shaft sleeve are respectively provided with a fixed cylinder, the outer wall of each fixed cylinder and the outer wall of the shaft sleeve are respectively provided with a corresponding threaded hole, and a bolt is connected with the inner threads of the threaded holes;

the top of a fixed cylinder is provided with a positioning plate, the center of the positioning plate is provided with a first opening corresponding to the shaft sleeve, the bottom of the positioning plate is abutted to the top of the fixed cylinder, the inner wall of the positioning plate is provided with a static ring, the bottom of the static ring is abutted to the top of the positioning plate, the upper surface of the positioning plate is provided with a movable ring, and the bottom of the movable ring is fixedly connected with a U-shaped clamping frame corresponding to the positioning plate.

Preferably, a sealing ring is arranged in the shaft sleeve, and the outer wall of the sealing ring is fixedly connected with the inner wall of the shaft sleeve.

Preferably, the outer wall of the shaft sleeve is provided with a first annular clamping block, the outer wall of the first annular clamping block is provided with a second annular clamping block, and the first annular clamping block is clamped with the second annular clamping block.

Preferably, the top of the rotating ring is fixedly connected with two outer cylinders which are symmetrically distributed, an inner rod is connected in each outer cylinder in a sliding mode, the top of the inner rod is fixedly connected with a connecting plate, and a second opening corresponding to the shaft sleeve is formed in the center of the connecting plate.

Preferably, the top of the outer barrel is provided with a spring, one end of the spring, which is far away from the outer barrel, is abutted against the bottom of the connecting plate, and the spring is positioned on the outer wall of the inner rod.

Preferably, the cross section of the positioning plate is T-shaped.

The utility model discloses a technological effect and advantage:

1. through being provided with the solid fixed cylinder at the outer wall of axle sleeve, earlier through using the bolt to be connected solid fixed cylinder and axle sleeve each other to support the locating plate through using solid fixed cylinder, will overlap on the axle sleeve between the quiet ring, and carry on spacingly to quiet ring through the locating plate, spacing back that finishes, with the U type card frame card on the rotating ring on the locating plate, thereby make quiet ring and rotating ring in contact with each other, can conveniently directly install rotating ring and quiet ring, improved mechanical seal assembly's packaging efficiency.

2. Be provided with the urceolus through the top at the rotating ring to be provided with the spring at the top of urceolus, when rotating each other at rotating ring and quiet ring, the rotating ring extrudees the urceolus, and the urceolus slides on the inner rod, thereby the epaxial spring in the extrusion makes the spring inwards contract, can conveniently compress tightly rotating ring and quiet ring each other when rotating ring and quiet ring.

3. Through being provided with the sealing washer in the axle sleeve, improve the leakproofness around the axle sleeve through using the sealing washer to effectually avoid liquid to reveal from the axle sleeve.

Drawings

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

Fig. 2 is a schematic cross-sectional view of fig. 1 according to the present invention.

Fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention.

In the figure: 1. a shaft sleeve; 2. a fixed cylinder; 3. a bolt; 4. positioning a plate; 5. a stationary ring; 6. a moving ring; 7. a U-shaped clamping frame; 8. a seal ring; 9. a first annular fixture block; 10. a second annular fixture block; 11. an outer cylinder; 12. an inner rod; 13. a connecting plate; 14. a spring.

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.

The utility model provides a leakage-proof mechanical sealing assembly as shown in figures 1-3, which comprises a shaft sleeve 1, wherein the left side and the right side of the shaft sleeve 1 are both provided with a fixed cylinder 2, the outer wall of the fixed cylinder 2 and the outer wall of the shaft sleeve 1 are both provided with corresponding threaded holes, and the inner threads of the threaded holes are connected with bolts 3;

the top of a fixed cylinder 2 is provided with a positioning plate 4, the center of the positioning plate 4 is provided with a first opening corresponding to the shaft sleeve 1, the bottom of the positioning plate 4 is abutted to the top of the fixed cylinder 2, the inner wall of the positioning plate 4 is provided with a static ring 5, the bottom of the static ring 5 is abutted to the top of the positioning plate 4, the upper surface of the positioning plate 4 is provided with a movable ring 6, and the bottom of the movable ring 6 is fixedly connected with a U-shaped clamping frame 7 corresponding to the positioning plate 4.

Meanwhile, a sealing ring 8 is arranged in the shaft sleeve 1, and the outer wall of the sealing ring 8 is fixedly connected with the inner wall of the shaft sleeve 1.

In addition, the outer wall of the shaft sleeve 1 is provided with a first annular clamping block 9, the outer wall of the first annular clamping block 9 is provided with a second annular clamping block 10, and the first annular clamping block 9 is clamped with the second annular clamping block 10, so that the sealing performance of the shaft sleeve 1 can be further improved.

More specifically, the cross-section of locating plate 4 is the T type, can conveniently make U type card frame 7 and the mutual joint of locating plate 4 of rotating ring 6 bottom.

As shown in fig. 1 and 2, the top of the movable ring 6 is fixedly connected with two outer cylinders 11 which are symmetrically distributed, an inner rod 12 is slidably connected in each of the two outer cylinders 11, the top of the inner rod 12 is fixedly connected with a connecting plate 13, and a second opening corresponding to the shaft sleeve 1 is formed in the center of the connecting plate 13.

It should be further noted that a spring 14 is arranged at the top of the outer cylinder 11, one end of the spring 14, which is far away from the outer cylinder 11, abuts against the bottom of the connecting plate 13, and the spring 14 is located on the outer wall of the inner rod 12, so that the movable ring 6 and the stationary ring 5 can be conveniently pressed by using the spring 14 when the movable ring 6 and the stationary ring 5 are separated from each other.

The utility model discloses the theory of operation: at first through using bolt 3 to be connected a fixed cylinder 2 and axle sleeve 1 each other, and support locating plate 4 through using a fixed cylinder 2, overlap between quiet ring 5 on axle sleeve 1, and it is spacing to quiet ring 5 through locating plate 4, spacing back that finishes, block U type card frame 7 on the rotating ring 6 on locating plate 4, thereby make quiet ring 5 and rotating ring 6 contact each other, can conveniently directly install rotating ring 6 and quiet ring 5, the packaging efficiency of mechanical seal subassembly has been improved, when rotating ring 6 and quiet ring 5 rotate each other, rotating ring 6 extrudes urceolus 11, urceolus 11 slides on interior pole 12, thereby extrude spring 14 on interior pole 12, make spring 14 inwards shrink, can conveniently compress tightly rotating ring 6 and quiet ring 5 each other when rotating movable ring 6 and quiet ring 5.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A mechanical seal assembly against leakage, comprising a shaft sleeve (1), characterized in that: the left side and the right side of the shaft sleeve (1) are respectively provided with a fixed cylinder (2), the outer wall of each fixed cylinder (2) and the outer wall of the shaft sleeve (1) are respectively provided with a corresponding threaded hole, and the threaded holes are internally connected with bolts (3);

the top of a fixed cylinder (2) is provided with a positioning plate (4), the center of the positioning plate (4) is provided with a first opening corresponding to the shaft sleeve (1), the bottom of the positioning plate (4) is abutted to the top of the fixed cylinder (2), the inner wall of the positioning plate (4) is provided with a static ring (5), the bottom of the static ring (5) is abutted to the top of the positioning plate (4), the upper surface of the positioning plate (4) is provided with a movable ring (6), and the bottom of the movable ring (6) is fixedly connected with a U-shaped clamping frame (7) corresponding to the positioning plate (4).

2. A leak resistant mechanical seal assembly according to claim 1, wherein: a sealing ring (8) is arranged in the shaft sleeve (1), and the outer wall of the sealing ring (8) is fixedly connected with the inner wall of the shaft sleeve (1).

3. A leak resistant mechanical seal assembly according to claim 1, wherein: the outer wall of the shaft sleeve (1) is provided with a first annular clamping block (9), the outer wall of the first annular clamping block (9) is provided with a second annular clamping block (10), and the first annular clamping block (9) is clamped with the second annular clamping block (10).

4. A leak resistant mechanical seal assembly according to claim 1, wherein: the top fixedly connected with of rotating ring (6) two outer tubes (11) of symmetric distribution, two equal sliding connection has interior pole (12) in outer tube (11), the top fixedly connected with connecting plate (13) of interior pole (12), the central point of connecting plate (13) puts and offers the second opening corresponding with axle sleeve (1).

5. A leak resistant mechanical seal assembly according to claim 4, wherein: the spring (14) is arranged at the top of the outer barrel (11), one end, far away from the outer barrel (11), of the spring (14) is abutted to the bottom of the connecting plate (13), and the spring (14) is located on the outer wall of the inner rod (12).

6. A leak resistant mechanical seal assembly according to claim 1, wherein: the cross section of the positioning plate (4) is T-shaped.