CN214500043U

CN214500043U - Mechanical seal end face structure

Info

Publication number: CN214500043U
Application number: CN202120360424.4U
Authority: CN
Inventors: 张斌玉
Original assignee: Weihai Vocational College
Current assignee: Weihai Vocational College
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-10-26
Anticipated expiration: 2031-02-09

Abstract

The utility model discloses a mechanical seal end face structure, sealing mechanism includes fixed disk, upper ring plate, lower ring plate and rotation groove, the outer fixed surface of fixed disk is connected with the connection pad, and the spout has been seted up to the surface of connection pad, and one side that the upper ring plate is close to lower ring plate has seted up first arc wall, the utility model relates to a mechanical end face seal technical field. This mechanical seal end face structure, through the fixed disk, go up the ring plate, the lower ring plate, the rotation groove, the connection pad, the spout, first arc wall, first sealed pad, the second arc wall, the sealed cooperation that fills up and ball of second is used, utilize the rotation groove to seal up the connection pad, the cooperation that utilizes ball and spout makes things convenient for the transmission shaft to rotate, improve sealed moving stability, ring plate and lower ring plate carry out the shutoff to the through-hole on the rethread, the realization is effectively sealed the position of running through, it is not good to have solved current bearing seal effect, influence the normal use of equipment, lead to the problem that work efficiency reduces.

Description

Mechanical seal end face structure

Technical Field

The utility model relates to a mechanical end face seal technical field specifically is a mechanical seal end face structure.

Background

The mechanical seal is a shaft seal device of a rotating machine. Such as centrifugal pumps, centrifuges, reaction kettles, compressors, and the like. Since the drive shaft extends through the inside and outside of the apparatus, there is a circumferential gap between the shaft and the apparatus through which the medium in the apparatus leaks out, and if the pressure in the apparatus is lower than atmospheric pressure, air leaks into the apparatus, so that a shaft seal device must be provided to prevent leakage. The shaft seal has many kinds, and the mechanical seal has the advantages of small leakage amount, long service life and the like, so the mechanical seal is the most important shaft sealing mode in the devices in the world. Mechanical seals, also called face seals, are defined in the relevant national standards as follows: "means for preventing fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, and which are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal. "

Just, anti-two-way rotation often appears in the transmission shaft in the engineering, leads to running through the position easily and wearing and tearing appear, leads to sealed effect not good, and current bearing seal effect is not good, influences the normal use of equipment, leads to work efficiency to reduce, consequently, the utility model provides a mechanical seal end face structure to solve the above-mentioned problem of mentioning.

Disclosure of Invention

Not enough to prior art, the utility model provides a mechanical seal end face structure has solved current bearing seal effect not good, influences the normal use of equipment, leads to the problem that work efficiency reduces.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a mechanical seal end face structure, includes terminal surface portion and transmission shaft, the through-hole has been seted up in one side run-through of terminal surface portion, be provided with sealing mechanism in the terminal surface portion.

Sealing mechanism includes fixed disk, upper ring plate, lower ring plate and rotation groove, the outer fixed surface of fixed disk is connected with the connection pad, the spout has been seted up to the surface of connection pad, the upper ring plate has been close to one side of lower ring plate and has been seted up first arc wall, the first sealed pad of inside fixedly connected with of first arc wall, the lower ring plate is close to upper ring plate one side and has been seted up the second arc wall, the sealed pad of inside fixedly connected with second of second arc wall, the inside of rotation groove is provided with the ball.

Preferably, the outer surface of the upper ring plate is fixedly connected with a first supporting spring, the outer surface of the lower ring plate is fixedly connected with a second supporting spring, and the fixed disc is fixedly connected to the outer surface of the transmission shaft.

Preferably, the fixed inside of terminal surface portion has seted up the connection chamber, the rotation groove is seted up in the inside of terminal surface portion, the connection chamber respectively with rotate and communicate between groove and the through-hole.

Preferably, one end of the first support spring, which is far away from the upper ring plate, is fixedly connected with the inside of the connecting cavity, and one end of the second support spring, which is far away from the lower ring plate, is fixedly connected with the inside of the connecting cavity.

Preferably, first sealed pad and the sealed pad of second all set up and are the arc, the arcwall face of the sealed relative one side of pad and the sealed pad of second of first sealed all laminates with the surface of transmission shaft.

Preferably, the outer surface of the ball is matched with the inside of the sliding groove, the outer surface of the connecting disc is matched with the inside of the rotating groove, and one side, close to each other, of the upper ring plate and one side, close to each other, of the lower ring plate are in a contact state.

Advantageous effects

The utility model provides a mechanical seal end face structure. Compared with the prior art, the method has the following beneficial effects:

(1) the mechanical sealing end face structure comprises a fixed disc, an upper ring plate, a lower ring plate and a rotating groove on a sealing mechanism, wherein the outer surface of the fixed disc is fixedly connected with a connecting disc, the outer surface of the connecting disc is provided with a sliding groove, one side of the upper ring plate, which is close to the lower ring plate, is provided with a first arc-shaped groove, the inside of the first arc-shaped groove is fixedly connected with a first sealing gasket, one side of the lower ring plate, which is close to the upper ring plate, is provided with a second arc-shaped groove, the inside of the rotating groove is provided with balls, the first sealing gasket, the second arc-shaped groove, the second sealing gasket and the balls are matched for use, the connecting disc is sealed by the rotating groove, the rotating shaft is convenient to rotate by utilizing the matching of the balls and the sliding groove, and the stability of sealing operation is improved, the through hole is plugged by the upper ring plate and the lower ring plate, so that the penetrating part is effectively sealed, and the problems that the conventional shaft seal is poor in effect, normal use of equipment is influenced, and the working efficiency is reduced are solved.

(2) This mechanical seal end face structure, be connected with first supporting spring through the surface fixed connection at last crown plate, the surface fixed connection of lower crown plate has the second supporting spring, the one end of last crown plate and the inside fixed connection who is connected the chamber are kept away from to first supporting spring, the one end of lower crown plate and the inside fixed connection who is connected the chamber are kept away from to the second supporting spring, use through the cooperation of first supporting spring and second supporting spring, utilize first supporting spring to apply elasticity to last crown plate, utilize the second supporting spring to apply elasticity to lower crown plate, the effectual first sealed pad of feasible and the laminating of the sealed pad of second are at the surface of transmission shaft, improve sealed effect.

Drawings

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

FIG. 2 is a front view of the internal structure of the end surface of the present invention;

fig. 3 is an exploded view of the upper ring plate and the lower ring plate of the present invention;

fig. 4 is a perspective view of the external structure of the fixing plate of the present invention.

In the figure: 1-end surface part, 2-transmission shaft, 3-through hole, 4-sealing mechanism, 401-fixed disk, 402-upper annular plate, 403-lower annular plate, 404-rotating groove, 405-connecting disk, 406-sliding groove, 407-first arc groove, 408-first sealing gasket, 409-second arc groove, 410-second sealing gasket, 411-ball, 5-first supporting spring, 6-second supporting spring and 7-connecting cavity.

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. 1-4, the present invention provides a technical solution: a mechanical seal end face structure comprises an end face part 1 and a transmission shaft 2, wherein a connecting cavity 7 is formed in the fixed inner part of the end face part 1, a rotating groove 404 is formed in the inner part of the end face part 1, the connecting cavity 7 is respectively communicated with the rotating groove 404 and a through hole 3, the through hole 3 is formed in one side of the end face part in a penetrating mode, and a sealing mechanism 4 is arranged on the end face part 1; the sealing mechanism 4 comprises a fixed disc 401, an upper ring plate 402, a lower ring plate 403 and a rotating groove 404, wherein the outer surface of the upper ring plate 402 is fixedly connected with a first supporting spring 5, one end of the first supporting spring 5 far away from the upper ring plate 402 is fixedly connected with the inside of the connecting cavity 7, one end of the second supporting spring 6 far away from the lower ring plate 403 is fixedly connected with the inside of the connecting cavity 7, the outer surface of the lower ring plate 403 is fixedly connected with a second supporting spring 6, the first supporting spring 5 is used for applying elastic force to the upper ring plate 402 and the second supporting spring 6 is used for applying elastic force to the lower ring plate 403 through the matching of the first supporting spring 5 and the second supporting spring 6, so that the first sealing gasket 408 and the second sealing gasket 410 are effectively attached to the outer surface of the transmission shaft 2, the sealing effect is improved, the fixed disc 401 is fixedly connected to the outer surface of the transmission shaft 2, the outer surface of the fixed disc 401 is fixedly connected with the connecting disc 405, the outer surface of the connecting disc 405 is provided with a sliding groove 406, one side of the upper ring plate 402 close to the lower ring plate 403 is provided with a first arc-shaped groove 407, the inside of the first arc-shaped groove 407 is fixedly connected with a first sealing gasket 408, the first sealing gasket 408 and a second sealing gasket 410 are both arranged in an arc shape, the arc-shaped surfaces of the opposite sides of the first sealing gasket 408 and the second sealing gasket 410 are both attached to the outer surface of the transmission shaft 2, one side of the lower ring plate 403 close to the upper ring plate 402 is provided with a second arc-shaped groove 409, the inside of the second arc-shaped groove 409 is fixedly connected with a second sealing gasket 410, the inside of the rotating groove 404 is provided with a ball 411, the connecting disc 403, the upper ring plate 402, the lower ring plate 404, the rotating groove 404, the connecting disc 405, the sliding groove 406, the first arc-shaped groove 407, the first sealing gasket 408, the second arc-shaped groove 409, the second sealing gasket 410 and the ball 411 are matched for use, the connecting disc 405 is sealed by the rotating groove 404, the rotating of the connecting disc 405 is convenient for the rotation of the transmission shaft 2 by the matching of the ball 411 and the sliding groove 406, improve sealed moving stability, ring plate 402 and lower ring plate 403 carry out the shutoff to through-hole 3 in the rethread, realize effectively sealing the position that runs through, it is not good to have solved current bearing seal effect, influence the normal use of equipment, lead to the problem that work efficiency reduces, the inside looks adaptation of ball 411's surface and spout 406, the surface of connection pad 405 and the inside looks adaptation of rotating groove 404, one side that upper ring plate 402 and lower ring plate 403 are close to each other is in the contact state.

And those not described in detail in this specification are well within the skill of those in the art.

When the sealing device works, when the transmission shaft 2 rotates, the fixed disc 401 is driven to rotate, the connecting disc 405 outside the fixed disc is driven to rotate in the rotating groove 404, the ball 411 and the sliding groove 406 are matched for use, the transmission shaft 2 is convenient to rotate, the stability of sealing operation is improved, in the rotating process of the connecting disc 405, the connecting disc 405 is convenient to seal by using the rotating groove 404, when the transmission shaft 2 rotates, the outside of the transmission shaft 2 is supported by the upper ring plate 402 and the lower ring plate 403, the upper ring plate 402 is applied with elastic force by using the first supporting spring 5, the lower ring plate 403 is applied with elastic force by using the second supporting spring 6, the outside of the transmission shaft 2 is wrapped by the first sealing gasket 408 and the second sealing gasket 410, the first sealing gasket 408 and the second sealing gasket 410 are effectively attached to the outer surface of the transmission shaft 2, and the sealing effect is improved, the fluid is effectively prevented from flowing out, and the penetrating part is effectively sealed.

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. The utility model provides a mechanical seal end face structure, includes terminal surface portion (1) and transmission shaft (2), its characterized in that: a through hole (3) is formed in one side of the end face part in a penetrating mode, and a sealing mechanism (4) is arranged on the end face part (1);

sealing mechanism (4) are including fixed disk (401), last ring plate (402), lower ring plate (403) and rotation groove (404), the outer fixed surface of fixed disk (401) is connected with connection pad (405), spout (406) have been seted up to the surface of connection pad (405), go up ring plate (402) and seted up first arc wall (407) near one side of lower ring plate (403), the first sealed pad (408) of inside fixedly connected with of first arc wall (407), second arc wall (409) have been seted up near last ring plate (402) one side to lower ring plate (403), the inside fixedly connected with second of second arc wall (409) seals up the pad (410), the inside of rotation groove (404) is provided with ball (411).

2. A mechanical seal face structure according to claim 1, wherein: go up the fixed surface of crown plate (402) and be connected with first supporting spring (5), the fixed surface of lower crown plate (403) is connected with second supporting spring (6), fixed disk (401) fixed connection is in the surface of transmission shaft (2).

3. A mechanical seal face structure according to claim 1, wherein: the fixed inside of terminal surface portion (1) has seted up connection chamber (7), the inside of locating terminal surface portion (1) is seted up in rotation groove (404), connection chamber (7) respectively with rotate and communicate between groove (404) and through-hole (3).

4. A mechanical seal face structure according to claim 2, wherein: one end, far away from the upper ring plate (402), of the first supporting spring (5) is fixedly connected with the inside of the connecting cavity (7), and one end, far away from the lower ring plate (403), of the second supporting spring (6) is fixedly connected with the inside of the connecting cavity (7).

5. A mechanical seal face structure according to claim 1, wherein: first sealed pad (408) and second sealed pad (410) all set up and are the arc, the arcwall face of the relative one side of first sealed pad (408) and second sealed pad (410) all laminates with the surface of transmission shaft (2).

6. A mechanical seal face structure according to claim 1, wherein: the outer surface of the ball (411) is matched with the interior of the sliding groove (406), the outer surface of the connecting disc (405) is matched with the interior of the rotating groove (404), and one sides, close to each other, of the upper ring plate (402) and the lower ring plate (403) are in a contact state.