CN219282428U - Mechanical seal mechanism that can adjust - Google Patents

Abstract

The utility model discloses an adjustable mechanical sealing mechanism, which relates to the technical field of mechanical sealing elements and comprises a shaft sleeve, wherein a kettle opening flange assembly is sleeved on the shaft sleeve, a packing is arranged between the kettle opening flange assembly and the shaft sleeve, an atmospheric side static ring seat assembly is sleeved on the shaft sleeve, an adjusting mechanism is arranged between the atmospheric side static ring seat assembly and the kettle opening flange assembly and is used for adjusting the sealing degree of the packing, and the sealing degree of the packing is adjusted by rotating a double-end stud in the adjusting mechanism.

Description

Mechanical seal mechanism that can adjust

Technical Field

The utility model relates to the technical field of mechanical sealing elements, in particular to an adjustable mechanical sealing mechanism.

Background

The seal is a material or part of a component part that prevents leakage of fluid or solid particles from between adjacent joint surfaces and prevents intrusion of foreign matter such as dust and moisture into the interior of the machine.

The existing mechanical shaft is required to be provided with a sealing element so as to prevent a stirring object or a processed object on the shaft from flowing out along a gap of the mechanical shaft, the existing sealing element is fixedly arranged, sealing is realized by means of self sealing property, the self sealing property of the sealing element is not adjustable, and the sealing element is required to be replaced after a period of use due to the non-adjustable sealing property.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model provides an adjustable mechanical sealing mechanism, which can adjust the tightness and prolong the service time of the sealing mechanism.

The utility model provides an adjustable mechanical sealing mechanism, which comprises a shaft sleeve, wherein a kettle opening flange assembly is sleeved on the shaft sleeve, a packing is arranged between the kettle opening flange assembly and the shaft sleeve, an atmosphere side static ring seat assembly is sleeved on the shaft sleeve, and an adjusting mechanism is arranged between the atmosphere side static ring seat assembly and the kettle opening flange assembly and used for adjusting the sealing degree of the packing.

Preferably, the adjusting mechanism comprises a double-end stud, and one end of the double-end stud is sleeved with a nut.

Preferably, a sealing cavity assembly is sleeved on the shaft sleeve, and a medium side static ring and a medium side dynamic ring are arranged between the sealing cavity assembly and the shaft sleeve.

Preferably, one side of the atmosphere side static ring seat assembly is sequentially provided with an atmosphere side static ring and an atmosphere side moving ring, and an elastic piece is arranged between the atmosphere side moving ring and the medium side moving ring.

Preferably, a packing gland is mounted on the packing.

According to the mechanical sealing mechanism capable of being adjusted, the double-end stud in the adjusting mechanism rotates to adjust the sealing degree of the packing, so that the sealing performance of the sealing mechanism is adjustable, and when the mechanical sealing mechanism is used, the tightness of the packing can be adjusted according to different conditions.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a front view of the structure of the present utility model;

fig. 2 is a side view of the structure of the present utility model.

In the figure, 1, packing gland; 2. an adjusting mechanism; 3. sealing the cavity assembly; 4. packing; 5. a kettle mouth flange assembly; 6. an atmospheric side stationary ring seat assembly; 7. a shaft sleeve; 8. a double-ended stud; 9. a nut; 10. a medium side stationary ring; 11. a media side ring; 12. an elastic member; 13. an atmospheric stationary ring; 14. an atmosphere-side ring.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

1-2, an adjustable mechanical sealing mechanism comprises a shaft sleeve 7, wherein a kettle opening flange assembly 5 is sleeved on the shaft sleeve 7 in a sliding manner, a packing 4 is installed between the kettle opening flange assembly 5 and the shaft sleeve 7, a packing gland 1 is installed on the packing 4, an atmosphere side static ring seat assembly 6 is fixedly sleeved on the shaft sleeve 7, an adjusting mechanism 2 is arranged between the atmosphere side static ring seat assembly 6 and the kettle opening flange assembly 5, and the adjusting mechanism 2 is used for adjusting the sealing degree of the packing 4;

the adjusting mechanism 2 comprises a stud 8, one end of the stud 8 is sleeved with a nut 9, the stud 8 penetrates through the atmospheric side static ring seat assembly 6 and the kettle mouth flange assembly 5, and the penetration positions of the atmospheric side static ring seat assembly 6 and the kettle mouth flange assembly 5 as well as the stud 8 are in threaded connection, so that the tightness of packing 4 between the kettle mouth flange assembly 5 and the shaft sleeve 7 can be adjusted by rotating the stud 8;

the adjusting mechanism 2 comprises other existing adjusting pieces which can realize the tightness adjustment of the packing 4;

the shaft sleeve 7 is sleeved with a sealing cavity assembly 3, a medium side static ring 10 and a medium side moving ring 11 are arranged between the sealing cavity assembly 3 and the shaft sleeve 7, one side of the atmosphere side static ring seat assembly 6 is sequentially provided with an atmosphere side static ring 13 and an atmosphere side moving ring 14, an elastic piece 12 is arranged between the atmosphere side moving ring 14 and the medium side moving ring 11, and the elastic piece 12 buffers the pressure brought to the atmosphere side moving ring 14 and the medium side moving ring 11 by the regulating mechanism 2;

according to the mechanical sealing mechanism capable of being adjusted, the double-end stud 8 in the adjusting mechanism 2 rotates to adjust the sealing degree of the packing 4, so that the sealing performance of the sealing mechanism is adjustable, when the mechanical sealing mechanism is used, the tightness of the packing 4 can be adjusted according to different tightness conditions, the medium side stationary ring 10, the medium side movable ring 11, the atmosphere side stationary ring 13 and the atmosphere side movable ring 14 are matched with the packing 4 to seal a rotating shaft in the shaft sleeve 7, and the sealing performance of equipment is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (5)

1. The utility model provides a mechanical seal mechanism that can adjust, includes axle sleeve (7), the cover is equipped with cauldron mouth flange subassembly (5) on axle sleeve (7), its characterized in that, install packing (4) between cauldron mouth flange subassembly (5) and axle sleeve (7), the cover is equipped with the quiet ring seat subassembly of atmosphere side (6) on axle sleeve (7), and is equipped with adjustment mechanism (2) between quiet ring seat subassembly of atmosphere side (6) and cauldron mouth flange subassembly (5), adjustment mechanism (2) are used for adjusting the degree of sealing of packing (4).

2. The adjustable mechanical seal according to claim 1, wherein the adjustment mechanism (2) comprises a stud (8), and one end of the stud (8) is sleeved with a nut (9).

3. The adjustable mechanical seal mechanism according to claim 1, wherein the shaft sleeve (7) is sleeved with a seal cavity assembly (3), and a medium side stationary ring (10) and a medium side movable ring (11) are installed between the seal cavity assembly (3) and the shaft sleeve (7).

4. An adjustable mechanical seal according to claim 3, wherein one side of the atmospheric static ring seat assembly (6) is provided with an atmospheric static ring (13) and an atmospheric dynamic ring (14) in sequence, and an elastic member (12) is provided between the atmospheric dynamic ring (14) and the medium dynamic ring (11).

5. An adjustable mechanical seal according to claim 1, characterized in that the packing (4) is fitted with a packing gland (1).

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