CN216078297U

CN216078297U - Novel structure of mechanical sealing element

Info

Publication number: CN216078297U
Application number: CN202122100123.0U
Authority: CN
Inventors: 童慧; 童英琦; 王海荣; 赵佳佳; 李海阳
Original assignee: JIANGSU GOLDEN EAGLE FLUID MACHINERY CO Ltd
Current assignee: JIANGSU GOLDEN EAGLE FLUID MACHINERY CO Ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-03-18
Anticipated expiration: 2031-09-02

Abstract

The utility model relates to the technical field of mechanical sealing elements and discloses a novel structure of a mechanical sealing element, which comprises an axis body, wherein an axis sleeve ring is sleeved on the axis body, the left side wall surface and the right side wall surface of the axis sleeve ring are fixedly connected with fixing rings, one side wall surface, away from each other, of each fixing ring is provided with a power assisting ring, sealing gaskets are fixedly arranged inside the two fixing rings, one side wall surface, away from each other, of each sealing gasket is provided with a stress groove, and a connecting ring is fixedly arranged inside each power assisting ring. When the sealing device is used, when the fixing ring is connected with the power assisting ring, the first extrusion block on the power assisting ring enters the inner part of the stress groove on the corresponding sealing gasket, and the maximum thickness of the first extrusion block is larger than that of the inner part of the stress groove, so that the sealing gasket is extruded by the first extrusion block to deform after the first extrusion block completely enters the inner part of the stress groove, and further the contact surface of the sealing gasket and the outer wall surface of the shaft body forms an interference state, and the sealing performance of the device is greatly improved.

Description

Novel structure of mechanical sealing element

Technical Field

The utility model relates to the technical field of mechanical sealing elements, in particular to a novel structure of a mechanical sealing element.

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. Its sealing performance and service life depend on many factors such as the type of selection, the accuracy of the machine, proper installation and use, etc.

Through retrieval application number CN202020838258.X discloses a mechanical seal novel structure, in this mechanical seal novel structure, through the setting of fixed frame and linking frame, but convenient to use person is to the dismouting between solid fixed ring and the axle sleeve ring, two group's fixed rings have fixed effect to the axle sleeve ring of cover setting installation at the axis body outer wall, and under the effect of mutually supporting between mounting hole and screw, stability ability after being connected between multiplicable solid fixed ring and the axle sleeve ring, simultaneously expanding spring has the fixed efficiency of clamp to the axis body of installing in the axle sleeve ring is inside, and the laminating degree after the connection between multiplicable axis body of grip strip and the axle sleeve ring, the firm in utilization performance is splendid.

However, in this solution, because there is an overlapping portion between the two elastic members, the sealing performance of the device is greatly affected during use. Therefore, a novel structure of the mechanical sealing element is provided.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

Aiming at the defects of the prior art, the utility model provides a novel structure of a mechanical sealing element, and solves the problems.

Technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel structure of mechanical seal, includes the axis body, the cover is equipped with the axle sleeve ring on the axis body, the solid fixed ring of the equal fixedly connected with of the left and right sides lateral wall face of the axle sleeve ring, two a lateral wall face that solid fixed ring kept away from each other all sets up the helping hand ring, two the equal fixed mounting in inside of solid fixed ring has sealed the pad, two the atress groove has all been seted up to a lateral wall face that sealed pad kept away from each other, two the equal fixed mounting in inside of helping hand ring has the go-between, two the equal fixed mounting in inside of go-between has the extrusion piece one that the cooperation atress groove used.

Preferably, the first extrusion block is a circular ring block with a triangular cross section, the first extrusion block corresponds to the position of the stress groove on the corresponding sealing gasket, and the maximum thickness of the first extrusion block is larger than the maximum thickness of the interior of the stress groove.

Preferably, two the fixed ring side wall face of keeping away from each other has all seted up the spread groove, the inside of spread groove is close to one side wall face of axis body and has seted up the internal thread.

Preferably, a connecting block is fixedly mounted on one side wall face of each of the two assisting rings, the side wall face of each of the two assisting rings is close to each other, external threads matched with the internal threads of the connecting grooves are formed in the inner wall face of each connecting block, and the assisting rings are in threaded connection with the fixing rings through the connecting blocks.

Preferably, two extrusion blocks are fixedly mounted on the inner wall surface of the shaft sleeve ring, a joint pipe is arranged inside the shaft sleeve ring, and the outer wall surface of the joint pipe is fixedly connected with the outer wall surface of the extrusion block II.

Preferably, the second extrusion block is a circular ring block with a semicircular cross section, and the interior of the second extrusion block is hollow.

Advantageous effects

Compared with the prior art, the utility model provides a novel structure of a mechanical sealing element, which has the following beneficial effects:

1. this novel structure of mechanical seal spare, through setting up extrusion piece one, when solid fixed ring links together with helping hand ring when using, the inside that receives the forced groove on the corresponding seal gasket is gone into to extrusion piece one on the helping hand ring, because the inside maximum thickness that receives the forced groove is greater than to extrusion piece one, consequently, after extrusion piece one gets into the inside in forced groove completely, sealed the extrusion that receives extrusion piece one takes place deformation, and then make sealed the contact surface of filling up with the outer wall of axis body form the interference state, thereby the leakproofness of equipment has been improved greatly.

2. This novel structure of mechanical seal spare, through setting up the connecting block, because solid fixed ring is in the same place with connecting block threaded connection with the spread groove when helping hand ring passes through, threaded connection has convenient to detach's effect, consequently is convenient for separate solid fixed ring and helping hand ring when using, overhauls and maintains solid sealed pad on the fixed ring to improve equipment's life.

3. This novel structure of mechanical seal spare through setting up extrusion piece two, and the inside laminating pipe of the axle sleeve ring is receiving under the influence of two elasticity of extrusion piece when using, can be in the same place with the outer wall close-fitting of axis body to stability when having improved this equipment use.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a half-sectional, three-dimensional exploded view of the retaining ring of the present invention;

fig. 3 is a perspective view of the shaft collar of the present invention.

In the figure: 1. a shaft body; 2. a shaft collar; 3. a fixing ring; 4. a booster ring; 5. a gasket; 6. a stress groove; 7. a connecting ring; 8. extruding a first block; 9. connecting grooves; 10. connecting blocks; 11. a second extrusion block; 12. and (7) fitting the pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-x, a novel structure of a mechanical sealing element comprises an axis body 1, an axis sleeve ring 2 is sleeved on the axis body 1, fixing rings 3 are fixedly connected to left and right side wall surfaces of the axis sleeve ring 2, both the fixing rings 3 are circular ring-shaped blocks, a booster ring 4 is arranged on one side wall surface of each fixing ring 3 away from each other, both the booster rings 4 are circular ring-shaped blocks, sealing gaskets 5 are fixedly arranged inside both the fixing rings 3, both the sealing gaskets 5 are circular ring-shaped elastic blocks, and the internal face of two sealed pads 5 contacts with the outer wall of axis body 1, and stress groove 6 has all been seted up to one side wall that two sealed pads 5 kept away from each other, and stress groove 6 is the annular groove of circle, and the equal fixed mounting in inside of two helping hand rings 4 has go-between 7, and go-between 7 is the annular piece of circle, and the equal fixed mounting in inside of two go-between 7 has the extrusion piece 8 that cooperation stress groove 6 used.

The cross section of the extrusion block 8 is a triangular annular block, the position of the first extrusion block 8 corresponds to that of the stress groove 6 on the corresponding sealing gasket 5, and the maximum thickness of the first extrusion block 8 is larger than that of the interior of the stress groove 6.

When using, when solid fixed ring 3 links together with helping hand ring 4, 8 extrusion pieces on the helping hand ring 4 get into the inside that corresponds stress groove 6 on sealed pad 5, because the inside maximum thickness that maximum thickness is greater than stress groove 6 on extrusion pieces 8, consequently, after extrusion pieces 8 got into stress groove 6's inside completely, sealed pad 5 received extrusion piece 8's extrusion and takes place deformation, and then make the contact surface of sealed pad 5 and the 1 outer wall of axis body form the interference state, thereby the leakproofness of equipment has been improved greatly.

The spread groove 9 has all been seted up to the mutual lateral wall face of keeping away from of two solid fixed rings 3, and spread groove 9 is the annular groove of circle, and the internal thread has been seted up to the inside lateral wall face that is close to axis body 1 of spread groove 9.

The equal fixed mounting of a lateral wall face that two helping hand rings 4 are close to each other has connecting block 10, and connecting block 10 is the annular piece of circle, and the internal face of connecting block 10 offers the external screw thread with the internal thread looks adaptation of spread groove 9, and helping hand ring 4 passes through connecting

block

10 and 3 threaded connection of solid fixed ring.

Because fixed ring 3 and helping hand ring 4 are in the same place with connecting block 10 threaded connection connecting groove 9 when passing through, threaded connection has convenient to detach's effect, is convenient for when using with fixed ring 3 and helping hand ring 4 separation, overhauls and maintains sealed pad 5 on the fixed ring 3 to improve equipment's life.

The inner wall surface of the shaft sleeve ring 2 is fixedly provided with two extrusion blocks 11, the number of the two extrusion blocks 11 is arranged according to the actual size of the shaft sleeve ring 2, the inner part of the shaft sleeve ring 2 is provided with a joint pipe 12, and the outer wall surface of the joint pipe 12 is fixedly connected with the outer wall surface of the two extrusion blocks 11.

The second extrusion block 11 is a circular ring block with a semicircular cross section, the interior of the second extrusion block 11 is hollow, and the second extrusion block 11 has elasticity.

When in use, the joint pipe 12 in the shaft sleeve ring 2 is closely jointed with the outer wall surface of the shaft body 1 under the influence of the elasticity of the second extrusion block 11, so that the stability of the device in use is improved.

Principle of operation

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel structure of mechanical seal, includes axis body (1), the cover is equipped with axle sleeve ring (2) on axis body (1), the equal fixedly connected with of the left and right sides wall surface of axle sleeve ring (2) is solid fixed ring (3), its characterized in that: two a lateral wall face that solid fixed ring (3) kept away from each other all sets up helping hand ring (4), two the equal fixed mounting in inside of solid fixed ring (3) has sealed pad (5), two atress groove (6), two have all been seted up to a lateral wall face that sealed pad (5) kept away from each other the equal fixed mounting in inside of helping hand ring (4) has go-between (7), two the equal fixed mounting in inside of go-between (7) has extrusion piece (8) that cooperation atress groove (6) used.

2. The novel structure of a mechanical seal according to claim 1, characterized in that: the first extrusion block (8) is a circular ring block with a triangular cross section, the first extrusion block (8) corresponds to the stress groove (6) in the corresponding sealing gasket (5), and the maximum thickness of the first extrusion block (8) is larger than the maximum thickness of the interior of the stress groove (6).

3. The novel structure of a mechanical seal according to claim 1, characterized in that: two fixed ring (3) one side wall face of keeping away from each other has all seted up spread groove (9), the inside of spread groove (9) is close to one side wall face of axis body (1) and has seted up the internal thread.

4. A novel structure of a mechanical seal according to claim 3, characterized in that: two equal fixed mounting in a side wall that helping hand ring (4) are close to each other has connecting block (10), the internal wall of connecting block (10) is seted up with the external screw thread of spread groove (9) internal thread looks adaptation, helping hand ring (4) pass through connecting block (10) and solid fixed ring (3) threaded connection.

5. The novel structure of a mechanical seal according to claim 1, characterized in that: the inner wall surface of the shaft sleeve ring (2) is fixedly provided with a second extrusion block (11), the inner part of the shaft sleeve ring (2) is provided with a joint pipe (12), and the outer wall surface of the joint pipe (12) is fixedly connected with the outer wall surface of the second extrusion block (11).

6. The novel structure of a mechanical seal according to claim 5, characterized in that: the second extrusion block (11) is a circular ring block with a semicircular cross section, and the interior of the second extrusion block (11) is hollow.