CN217951569U

CN217951569U - Double-end mechanical seal spare

Info

Publication number: CN217951569U
Application number: CN202221704516.0U
Authority: CN
Inventors: 郄旭东; 张晓斌
Original assignee: Shijiazhuang Beike Sealing Technology Co ltd
Current assignee: Shijiazhuang Beike Sealing Technology Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-12-02
Anticipated expiration: 2032-07-04

Abstract

The utility model relates to a mechanical seal spare technical field, concretely relates to double-end mechanical seal spare, including sealing cylinder mechanism, sealing cylinder mechanism is including sealing cylinder one and sealing cylinder two, still include two protruding type pipes, be provided with the mechanism of changing the pad in the sealing cylinder mechanism, the inside of sealing cylinder mechanism is provided with supplementary sealing mechanism, two protruding type pipes are partial sliding connection respectively in the inside of sealing cylinder one and sealing cylinder two, the other end of two protruding type pipes all extends to the outside and the fixedly connected with ring flange one of sealing cylinder mechanism, two ring flange one all with be provided with two between the sealing cylinder mechanism and stabilize the subassembly of changing, a single stable subassembly of changing includes this double-end mechanical seal spare of two screw rods, after installing on the pipeline, after sealing part spare inside sealing cylinder mechanism damages, it also is convenient for dismantle it and change to need not to move the pipeline, and this double-end mechanical seal spare has good sealed effect, the practicality is higher.

Description

Double-end mechanical seal spare

Technical Field

The utility model relates to a mechanical seal technical field, concretely relates to double-end mechanical seal spare.

Background

As is well known, a mechanical seal belongs to one of precise mechanical basic elements with complex structures, and is a key component of various pumps, reaction synthesis kettles, turbo compressors, submersible motors and other devices, the mechanical seal refers to a device for preventing fluid leakage, which is formed by keeping at least one pair of end faces perpendicular to a rotation axis in contact and sliding relatively under the action of fluid pressure and elastic force (or magnetic force) of a compensation mechanism and the cooperation of auxiliary seals, and when some pipelines are in contact joint, a double-end mechanical seal is usually used for realizing a sealing effect.

Through the retrieval, chinese patent application No. CN 202020483466.2's utility model discloses a double-end mechanical seal spare, foretell prior art scheme, all be equipped with the sealing member in through first pedestal and the second pedestal, the upper end of sealing member is equipped with the extension piece, be convenient for with the mounting block, the firmness of connection has been improved, the sealing member respectively with first pedestal and second pedestal fixed connection, the sealing member can pass through sticky fixed connection with the pedestal subassembly, further improve the firmness of connection, the upper end of pedestal subassembly is equipped with the fixture block and the mounting of circumference arrangement, the fixture block is the arc, mounting and pedestal subassembly sliding assembly, the setting of fixture block can prevent the rotation of mounting, the effect of preventing changeing has been improved greatly, therefore not only be convenient for the use of sealing member, improve the leakproofness, the assembly of sealing member of being convenient for simultaneously, the device has good leakproofness, and be convenient for the assembly, but in the in-service use, because first pedestal and the second pedestal separation of this sealing member, both of fixed mounting respectively need be installed at the both ends of pipeline earlier, make it install the seal up and seal, but after the pipeline is damaged, it need not move the pipeline, and the pipeline is convenient for the change, and the pipeline is not convenient for the double-end sealing member, and the pipeline, the pipeline is not convenient for the change, the double-end sealing member, the pipeline is not convenient for the double-end sealing member, the pipeline is not convenient for the change condition, and the double-used for the pipeline, and the pipeline, and the pipeline is not only, the pipeline is not convenient for the double-used for the pipeline, the pipeline is not need not to be convenient for.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model provides a double-end mechanical seal spare to solve the prior art that proposes in the background art because the first pedestal and the second pedestal separation of this sealing member, need earlier with both respectively fixed mounting at the both ends of pipeline, install sealedly making it, nevertheless accomplish the back at pipeline and sealing member installation, when the sealing member damaged, need remove the pipeline and just can dismantle its sealing member, under the not convenient for removal condition of pipeline, be not convenient for carry out the problem changed to it.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a double-end mechanical seal spare, includes sealed cylinder mechanism, sealed cylinder mechanism is including sealed cylinder one and sealed cylinder two, still includes two protruding type pipes, sealed cylinder mechanism is last to be provided with and to trade a pad mechanism, and sealed cylinder mechanism's inside is provided with supplementary sealing mechanism, two protruding type pipe is partial sliding connection respectively in sealed cylinder one and sealed cylinder two's inside, and the other end of two protruding type pipes all extends to the outside and the fixedly connected with ring flange one of sealed cylinder mechanism, two be provided with two between the ring flange one all and the sealed cylinder mechanism and stabilize a subassembly of changing, singly it includes two screw rods to stabilize a subassembly of changing the one end of screw rod fixed connection respectively in the one end of ring flange one and sealed cylinder one, two threaded connection has an internal thread section of thick bamboo between the screw rod.

Preferably, the pad replacing mechanism comprises two flange plates II, the two flange plates II are respectively attached to one ends of the sealing cylinder I and the sealing cylinder II, and the two flange plates II are detachably connected through a plurality of bolts I and nuts I.

Furthermore, supplementary sealing mechanism includes supplementary spring, supplementary spring is located the inside of sealing barrel mechanism, the equal fixedly connected with annular plate in both ends of supplementary spring, two the annular face of annular plate slides the laminating with the inner wall of sealing barrel one and sealing barrel two respectively, and the equal fixed mounting of the other end of two annular plates has sealed pad one, two the other end of sealed pad one is laminated with the one end of two protruding type pipes respectively.

And furthermore, the inner walls of the first sealing cylinder and the second sealing cylinder are fixedly provided with second sealing gaskets, and the other ends of the second sealing gaskets are respectively attached to the parts of the first sealing cylinder and the second sealing cylinder.

As a further scheme of the scheme, four adjusting through holes are formed in the internal thread cylinder, and four adjusting rods are connected inside the adjusting through holes in a sliding mode.

As a further scheme of the scheme, two hexagonal blocks are fixedly mounted on the four internal thread cylinders.

On the basis of the scheme, a third sealing gasket is arranged between the two second flange plates.

On the basis of the scheme, a fourth sealing gasket is arranged at the other end of each of the two first flange plates.

(III) advantageous effects

Compared with the prior art, the utility model provides a double-end mechanical seal spare possesses following beneficial effect:

the utility model discloses in, cooperation through two ring flanges one, be convenient for with this sealing member fixed mounting on the pipeline that will seal, through the cooperation of screw rod and interior thread section of thick bamboo between ring flange one and the sealing cylinder mechanism, rotate interior thread section of thick bamboo, make two screw rods carry out relative motion, drive the motion of protruding type pipe through the screw rod, be convenient for closely laminate between the part of two protruding type pipes and sealing cylinder one and the sealing cylinder two, promote the leakproofness of this sealing member, and after the inside sealed parts spare of sealing cylinder mechanism damages, need not to remove the pipeline, through dismantling the position of flange plate one and adjusting protruding type pipe, dismantle and change it, cooperation through supplementary sealing mechanism, be convenient for carry out secondary seal between protruding type pipe and sealing cylinder one and the sealing cylinder two, further improve the sealed effect of this sealing member, cooperation through the pad changing mechanism on the sealing cylinder mechanism, be convenient for change the inside sealed parts of sealing cylinder mechanism, therefore, this double-end mechanical seal spare, after installing on the pipeline, after the inside sealed parts spare of sealing cylinder mechanism damages, it also is convenient for dismantle and change it need not to remove the pipeline, and this double-end mechanical seal has good sealed effect, the practicality is higher.

Drawings

FIG. 1 is a partially cut-away perspective view of a preferred embodiment of the present application;

FIG. 2 is a schematic overall perspective view of a preferred embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A according to a preferred embodiment of the present application;

fig. 4 is a partially enlarged structural view of a portion B in fig. 1 according to a preferred embodiment of the present application.

In the figure: 1. a first sealing cylinder; 2. a second sealing cylinder; 3. a convex pipe; 4. a first flange plate; 5. a screw; 6. an internal threaded barrel; 7. a second flange plate; 8. a first bolt; 9. an auxiliary spring; 10. an annular plate; 11. a first sealing gasket; 12. a second sealing gasket; 13. Adjusting a rod; 14. six square blocks; 15. a third sealing gasket; 16. and a fourth sealing gasket.

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.

Examples

Referring to fig. 1 to 4, a double-end mechanical sealing element includes a sealing cylinder mechanism, the sealing cylinder mechanism includes a first sealing cylinder 1 and a second sealing cylinder 2, and further includes two convex tubes 3, a gasket replacing mechanism is disposed on the sealing cylinder mechanism, the gasket replacing mechanism includes two flange plates 7, the two flange plates 7 are respectively attached to one ends of the first sealing cylinder 1 and the second sealing cylinder 2, the two flange plates 7 are detachably connected through a plurality of bolts 8 and nuts, so as to facilitate replacement of sealing parts inside the sealing cylinder mechanism, a third sealing gasket 15 is disposed between the two flange plates 7, the third sealing gasket 15 is squeezed by the two flange plates 7, so as to facilitate sealing between the two flange plates, an auxiliary sealing mechanism is disposed inside the sealing cylinder mechanism, the auxiliary sealing mechanism includes an auxiliary spring 9, the auxiliary spring 9 is disposed inside the sealing cylinder mechanism, two ends of the auxiliary spring 9 are fixedly connected with annular plates 10, annular surfaces of the two annular plates 10 are respectively slidably attached to inner walls of the first sealing cylinder 1 and the second sealing cylinder 2, the other ends of the two sealing gaskets 11 are fixedly mounted with one end of the two sealing gasket 11, and the sealing cylinder 3 is further convenient for improving sealing effect of the sealing cylinder.

Still further, it should be further noted that, two protruding type pipes 3 are respectively partly sliding connected inside a first sealing cylinder 1 and a second sealing cylinder 2, the other ends of the two protruding type pipes 3 all extend to the outside of a first sealing cylinder mechanism and are fixedly connected with a first flange 4, the other ends of the two first flange 4 are respectively provided with a fourth sealing gasket 16, it is convenient to install the double-ended sealing element on the pipeline, seal between the double-ended sealing element and the pipeline, two stable parts changing assemblies are arranged between the two first flange 4 and the sealing cylinder mechanism, each stable part changing assembly comprises two screws 5, one end of each of the two screws 5 is respectively fixedly connected at one end of the first flange 4 and one end of the first sealing cylinder 1, a second internal thread cylinder 6 is connected between the two screws 5, adjusting through holes are all provided on the four internal thread cylinders 6, all sliding connected with adjusting rods 13 inside the four adjusting through holes, all fixedly provided with two hexagonal blocks 14 on the four internal thread cylinders 6, it is convenient for the manual work to manually rotate the internal thread cylinders 6 through a hexagonal wrench, all fixedly provided with two blocks 12 on the inner walls of the first sealing cylinder 1 and the second sealing cylinder 2, it is convenient to closely extrude the protruding type pipes through the first sealing cylinder 3 and the second sealing cylinder 2, it is convenient to closely to install the protruding type pipes when the protruding type pipes 3 and the protruding type pipes.

In summary, when the double-ended mechanical seal element is installed, firstly, according to the type of a pipeline, a double-ended mechanical seal element corresponding to the pipeline is selected, a flange plate corresponding to a first flange plate 4 is fixedly installed on the pipeline, then the position of the pipeline is adjusted, an internal thread cylinder 6 is rotated through an adjusting rod 13 or a hexagonal block 14, the internal thread cylinder 6 drives screw rods 5 on two sides to move in opposite directions, the screw rods 5 drive the first flange plate 4 to move, the first flange plate 4 drives a convex pipe 3 to move, the convex pipe 3 slides inside a first sealing cylinder 1 and a second sealing cylinder 2, a second sealing gasket 12 is extruded and deformed through the movement of the convex pipe 3, the convex pipe 3 is sealed between the first sealing cylinder 1 and the second sealing cylinder 2, then the first flange plate 4 and the flange plate on the pipeline are installed in a sealing mode through bolts and nuts matched with the first flange plate 4, meanwhile, the first sealing gasket 11 on the annular plate 10 drives the first sealing gasket to attach and extrude the convex pipe 3 through resilience of an auxiliary spring 9, the annular plate 10 and the annular plate 10 are attached to the inner wall of the sealing cylinder mechanism, therefore, the internal sealing cylinder mechanism can replace the convex pipe 3 and the internal sealing cylinder 2 only need to replace the first sealing cylinder 2, and the internal sealing mechanism to replace the two sealing cylinder 2, and the sealing mechanism.

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 double-end mechanical sealing element comprises a sealing cylinder mechanism, wherein the sealing cylinder mechanism comprises a first sealing cylinder (1) and a second sealing cylinder (2), and is characterized by further comprising two convex tubes (3), a gasket replacing mechanism is arranged on the sealing cylinder mechanism, an auxiliary sealing mechanism is arranged inside the sealing cylinder mechanism, part of each of the two convex tubes (3) is connected inside the first sealing cylinder (1) and the second sealing cylinder (2) in a sliding mode, the other ends of the two convex tubes (3) extend to the outside of the sealing cylinder mechanism and are fixedly connected with a first flange plate (4), and two stable element replacing assemblies are arranged between the two first flange plates (4) and the sealing cylinder mechanism;

the single stable element changing assembly comprises two screw rods (5), one ends of the two screw rods (5) are respectively and fixedly connected to one ends of the first flange plate (4) and the first sealing cylinder (1), and an internal thread cylinder (6) is in threaded connection between the two screw rods (5).

2. The double-ended mechanical seal element according to claim 1, wherein the gasket changing mechanism comprises two second flanges (7), the two second flanges (7) are respectively attached to one ends of the first sealing cylinder (1) and the second sealing cylinder (2), and the two second flanges (7) are detachably connected through a plurality of first bolts (8) and first nuts.

3. The double-end mechanical sealing element according to claim 2, wherein the auxiliary sealing mechanism comprises an auxiliary spring (9), the auxiliary spring (9) is located inside the sealing cylinder mechanism, two ends of the auxiliary spring (9) are fixedly connected with annular plates (10), annular surfaces of the two annular plates (10) are respectively in sliding fit with inner walls of the first sealing cylinder (1) and the second sealing cylinder (2), the other ends of the two annular plates (10) are respectively fixedly provided with a first sealing gasket (11), and the other ends of the two first sealing gaskets (11) are respectively in fit with one ends of the two convex tubes (3).

4. The double-ended mechanical seal according to claim 3, wherein the inner walls of the first sealing cylinder (1) and the second sealing cylinder (2) are fixedly provided with second sealing gaskets (12), and the other ends of the two second sealing gaskets (12) are respectively attached to the parts of the first sealing cylinder (1) and the second sealing cylinder (2).

5. The double-ended mechanical sealing element according to claim 4, wherein adjusting through holes are formed in each of the four internally threaded cylinders (6), and adjusting rods (13) are slidably connected inside each of the four adjusting through holes.

6. A double-ended mechanical seal according to claim 5, wherein two hexagonal blocks (14) are fixedly mounted on each of four of said internally threaded cylinders (6).

7. A double-ended mechanical seal according to claim 6, wherein a third gasket (15) is arranged between the two second flanges (7).

8. Double-ended mechanical seal according to claim 7, characterised in that the other end of both flanges one (4) is provided with a gasket four (16).