CN211082837U

CN211082837U - Stirrer mechanical seal suitable for water-free lubrication

Info

Publication number: CN211082837U
Application number: CN201921719337.2U
Authority: CN
Inventors: 徐卫煌; 李光伍; 杜烨
Original assignee: Zhangjiagang Seth Mechanical Seal Co ltd
Current assignee: Zhangjiagang Seth Mechanical Seal Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-07-24
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses an agitator mechanical seal suitable for no water lubrication, which relates to the technical field of mechanical seal, and comprises a movable ring, a static ring and a sealing washer, wherein the static ring is movably arranged at the top of the movable ring, the sealing washer is fixedly arranged in the inner ring of the static ring, a circulating water channel is arranged on the outer wall of the static ring, the circulating water channel is an arc-shaped channel, a first water storage cavity is arranged in the static ring, an extrusion spring is fixedly arranged in the first water storage cavity, one end of the extrusion spring is fixedly provided with a plunger, a second water storage cavity is arranged in the sealing washer, and the first water storage cavity is communicated with the second water storage cavity. The radiating effect does not rely on the material to realize, can further promote the radiating effect, and the practicality is stronger.

Description

Stirrer mechanical seal suitable for water-free lubrication

Technical Field

The utility model relates to a mechanical seal technical field, in particular to agitator mechanical seal suitable for anhydrous lubrication.

Background

The mechanical seal is used for a mechanical sealing device, generally used for shaft parts of various pumps, compressors, motors and other equipment to achieve a sealing effect, belongs to one of mechanical basic elements with precise and complex structures, the sealing performance and the service life of the mechanical seal depend on a plurality of factors, such as use conditions, type selection, machine precision, correct installation and use and the like, and the mechanical seal is also used in a stirrer for water-free lubrication;

however, the existing mechanical sealing structure of the stirrer for the waterless lubrication is still too simple, the overall practicability is not enough, and the following two defects still exist in the actual use process, and need to be improved:

on one hand, most of existing stirrer mechanical seals for water-free lubrication adopt springs to extrude the innermost ring of a seal ring when in use, so that the seal ring can keep a sealing effect, but in the mode, more springs are needed, and pressure difference exists between the extrusion point and a non-extrusion point of the springs, so that the seal ring is damaged unevenly, the sealing effect is influenced, and the service life is prolonged;

on the other hand, the existing mechanical seal for the agitator without water lubrication generates a large amount of heat due to a large amount of friction when in use, and in order to ensure a good heat dissipation effect, the mechanical seal is generally improved by a material, but the heat dissipation effect is not good enough only by increasing the heat dissipation effect by the material.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an agitator mechanical seal suitable for anhydrous lubrication to the uneven sealed effect of influence of the sealing washer wearing and tearing that proposes in solving above-mentioned background art and the not good problem of radiating effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an agitator mechanical seal suitable for anhydrous lubrication, includes rotating ring, quiet ring sum seal ring, quiet ring activity sets up the rotating ring top, seal ring is fixed to be set up in the inner circle of quiet ring, circulating water passageway has been seted up on the outer wall of quiet ring, circulating water passageway is the arc passageway.

Preferably, a first water storage cavity is formed in the static ring, and an extrusion spring is fixedly arranged in the first water storage cavity.

Preferably, one end of the extrusion spring is fixedly provided with a plunger.

Preferably, a second water storage cavity is formed in the sealing washer, and the first water storage cavity is communicated with the second water storage cavity.

Preferably, an anti-dropping block is fixedly arranged in the first water storage cavity.

Preferably, the number of the pressing springs is eight.

Preferably, the stationary ring is made of silicon carbide.

Preferably, the sealing washer is made of corrosion-resistant rubber.

Preferably, the moving ring is made of a ceramic material.

The utility model discloses a technological effect and advantage:

1. the utility model realizes the basic sealing effect through the sealing washer, utilizes the extrusion spring to press the water in the first water storage cavity and the second water storage cavity, can uniformly keep the sealing washer tightly attached to the shaft part of the stirrer all the time, ensures that each part of the sealing washer can be uniformly worn, and can still keep good sealing even if the sealing washer is slightly worn;

2. simultaneously, the setting of circulating water passageway makes the utility model discloses usable water flow in circulating water passageway dispels the heat to it when using, and the radiating effect does not rely on the material to realize, can further promote the radiating effect, and the practicality is stronger.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a partial enlarged view of the first water storage chamber portion of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a schematic view of the connection mode between the middle plunger and the spring according to the present invention.

In the figure: 1. a moving ring; 2. a stationary ring; 3. a sealing gasket; 4. a circulating water channel; 5. a first water storage cavity; 6. a compression spring; 7. a plunger; 8. an anti-drop block; 9. a second water storage 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.

The utility model provides a stirrer mechanical seal suitable for water-free lubrication as shown in figures 1-4, which comprises a moving ring 1, a static ring 2 and a sealing washer 3;

combine fig. 1 and fig. 3 to show, the activity of quiet ring 2 sets up at the 1 top of rotating ring, and seal ring 3 is fixed to be set up in the inner circle of quiet ring 2, has seted up circulation water channel 4 on the outer wall of quiet ring 2, and circulation water channel 4 is the arc passageway the utility model discloses in, rotating ring 1 when using with the motor shaft fixed connection of agitator, and quiet ring 2 then can keep static, seal ring 3 plays basic sealing function, and circulation water channel 4's setting makes the utility model discloses the water that the usable agitator during operation stirred when using dispels the heat to it in circulation water channel 4's flow, and the radiating effect does not rely on the material to realize, can further promote the radiating effect, increases the utility model discloses a practicality.

Referring to fig. 1 and 2, a first water storage cavity 5 is arranged in the stationary ring 2, an extrusion spring 6 is fixedly arranged in the first water storage cavity 5, one end of the extrusion spring 6 is fixedly provided with a plunger 7, the number of the extrusion springs 6 is eight, a second water storage cavity 9 is arranged in the sealing washer 3, the first water storage cavity 5 is communicated with the second water storage cavity 9, an anti-falling block 8 is fixedly arranged in the first water storage cavity 5, in actual use, a proper amount of water needs to be added into the first water storage cavity 5 and the second water storage cavity 9 during production, then utilize extrusion spring 6 to extrude water to the pressure of plunger 7, extrude seal ring 3 through water, can evenly keep seal ring 3 can be all the time the shaft part of close laminating agitator, guaranteed that each part of seal ring 3 can even wearing and tearing, even seal ring 3 has a little wearing and tearing, still can keep good sealed.

Simultaneously, rotating ring 1 is made by ceramic material, and quiet ring 2 is made by carborundum, and seal ring 3 is made by corrosion resistant rubber material, and stability obtains certain improvement, has ensured the utility model discloses can adapt to various environment.

This practical theory of operation: when the utility model is used, only need to use the utility model discloses direct mount on the motor shaft of agitator alright, fixed rotating ring 1 and motor shaft, quiet ring 2 then need keep the activity (the connected mode of rotating ring 1 and quiet ring 2 is the same with traditional mechanical seal, all is connected through the cooperation of annular groove with annular bulge, the utility model discloses no longer describe again), when using, rotating ring 1 can rotate along with the motor shaft together, and quiet ring 2 and seal ring 3 can keep static, and seal ring 3 can rub with the motor shaft, produces the heat, but simultaneously, the work of agitator can make the liquid around the environment that quiet ring 2 is located take place to remove, utilizes the flow of flowing liquid in circulating water passageway 4 to go on the heat that the utility model produced, and the radiating effect does not rely on the material to realize, can effectively promote the radiating effect;

and simultaneously, the utility model discloses well seal ring 3's pressure keeps extrudeing water through the pressure of extrusion spring 6 to plunger 7, recycles water pressure and extrudees seal ring 3, and is comparatively speaking with traditional mechanical seal extrusion mode, the utility model discloses can evenly exert pressure to seal ring 3, ensure the motor shaft part of the laminating agitator that each part of seal ring 3 can both be tight, ensure that each part of seal ring 3 can even wearing and tearing, and seal ring 3 has a little wearing and tearing back, because hydraulic existence, still can keep good sealed.

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 stirrer mechanical seal suitable for no-water lubrication comprises a moving ring (1), a static ring (2) and a sealing gasket (3), and is characterized in that: the movable seal ring is characterized in that the static ring (2) is movably arranged at the top of the movable ring (1), the seal washer (3) is fixedly arranged in the inner ring of the static ring (2), a circulating water channel (4) is formed in the outer wall of the static ring (2), and the circulating water channel (4) is an arc-shaped channel.

2. The mechanical seal for a dry lubricated agitator according to claim 1, wherein: a first water storage cavity (5) is formed in the static ring (2), and an extrusion spring (6) is fixedly arranged in the first water storage cavity (5).

3. A mechanical seal for an agitator suitable for dry lubrication according to claim 2, wherein: and one end of the extrusion spring (6) is fixedly provided with a plunger (7).

4. A mechanical seal for an agitator suitable for dry lubrication according to claim 2, wherein: a second water storage cavity (9) is formed in the sealing washer (3), and the first water storage cavity (5) is communicated with the second water storage cavity (9).

5. A mechanical seal for an agitator suitable for dry lubrication according to claim 2, wherein: an anti-falling block (8) is fixedly arranged in the first water storage cavity (5).

6. A mechanical seal for an agitator suitable for dry lubrication according to claim 2, wherein: the number of the extrusion springs (6) is eight.

7. The mechanical seal for a dry lubricated agitator according to claim 1, wherein: the stationary ring (2) is made of silicon carbide.

8. The mechanical seal for a dry lubricated agitator according to claim 1, wherein: the sealing washer (3) is made of corrosion-resistant rubber.

9. The mechanical seal for a dry lubricated agitator according to claim 1, wherein: the moving ring (1) is made of ceramic materials.