CN219975335U - Shaft seal mechanism with self-circulation lubricating liquid - Google Patents
Shaft seal mechanism with self-circulation lubricating liquid Download PDFInfo
- Publication number
- CN219975335U CN219975335U CN202321694313.2U CN202321694313U CN219975335U CN 219975335 U CN219975335 U CN 219975335U CN 202321694313 U CN202321694313 U CN 202321694313U CN 219975335 U CN219975335 U CN 219975335U
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- China
- Prior art keywords
- lubricating
- sealing seat
- ring
- movable ring
- shaft
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 44
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 238000005461 lubrication Methods 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 230000003068 static effect Effects 0.000 claims abstract description 10
- 238000005457 optimization Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The shaft seal mechanism with the self-circulation of the lubricating liquid comprises a rotating shaft (1), wherein a shaft sleeve (2) is sleeved on the rotating shaft (1), and a first movable ring (6) and a rubber rotating wheel (11) are respectively sleeved on the shaft sleeve (2); the sealing device is characterized by further comprising a sealing seat (10), wherein the sealing seat (10) is covered on the rotating shaft (1), the first movable ring (6) and the rubber rotating wheel (11) are positioned in a lubrication cavity (12) of the sealing seat (10), a first static ring (7) is arranged on the inner side of the sealing seat (10), and the first static ring (7) is matched with the first movable ring (6); a lubricating fluid inlet and a lubricating fluid outlet are formed in the shell of the sealing seat (10), and the lubricating fluid inlet and the lubricating fluid outlet are communicated with the lubricating cavity (12).
Description
Technical Field
The utility model relates to the technical field of shaft sealing, in particular to a shaft seal mechanism with self-circulation lubricating liquid.
Background
The rotating shaft is used as a power transmission mechanism, under the working condition of working in different media, such as a shaft in a screw pump, one side is a transmission medium, and the other side is an atmosphere side, in order to prevent the medium from leaking to the atmosphere side, a sealing mechanism is required to be arranged, because the shaft in the screw pump is in a rotating state, a sealing ring in the sealing mechanism is used for processing the continuous friction state and generating heat, lubricating liquid is required to be adopted for cooling, and no failure is ensured.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a shaft seal mechanism which utilizes the self power of a rotating shaft to embed a rubber wheel into a sealed shell and realize the self circulation of lubricating liquid for lubricating and radiating a sealing surface.
2. Specific technical scheme
The shaft seal mechanism with the self-circulation of the lubricating liquid comprises a rotating shaft (1), wherein a shaft sleeve (2) is sleeved on the rotating shaft (1), and a first movable ring (6) and a rubber rotating wheel (11) are respectively sleeved on the shaft sleeve (2);
the sealing device is characterized by further comprising a sealing seat (10), wherein the sealing seat (10) is covered on the rotating shaft (1), the first movable ring (6) and the rubber rotating wheel (11) are positioned in a lubrication cavity (12) of the sealing seat (10), a first static ring (7) is arranged on the inner side of the sealing seat (10), and the first static ring (7) is matched with the first movable ring (6); a lubricating fluid inlet and a lubricating fluid outlet are formed in the shell of the sealing seat (10), and the lubricating fluid inlet and the lubricating fluid outlet are communicated with the lubricating cavity (12).
In the use, connect to the liquid storage jar of outside respectively with lubricated liquid entry and lubricated liquid export, first quiet ring (7) with first rotating ring (6) friction fit realizes sealed axis of rotation (1), make the liquid of its axis of rotation (1) medium side can not leak, in axis of rotation (1) rotation in-process, drive rubber runner (11) and rotate, in the rotation in-process of rubber runner (11), stir the liquid in lubricated cavity (12), make its lubricated liquid flow, play the even effect of heat dissipation, discharge the cavity with lubricated cavity (12) through lubricated liquid outlet simultaneously, with external lubricated liquid exchange, further dispel the heat.
As an optimization: the rubber rotating wheel (11) is provided with a fixed sleeve (1101), the fixed sleeve (1101) is sleeved on the rotating shaft (1), blades (1102) are uniformly distributed on the outer surface of the fixed sleeve (1101), and the cross section of the free end of each blade (1102) is of a circular structure;
the lubrication cavity (12) is of an eccentric annular structure, and the blades (1102) are in friction contact with the inner wall of the lubrication cavity (12).
As an optimization: the shaft sleeve (2) is further sleeved with a second movable ring (3), the sealing seat (10) is further provided with a second stationary ring (4), the second stationary ring (4) is in friction fit with the second movable ring (3), the second stationary ring (4) and the second movable ring (3) are located on the medium side of the rotating shaft (1), and the first stationary ring (7) and the first movable ring (6) are located on the atmosphere side of the rotating shaft (1). Adopt two sets of seal structure, guaranteed sealed inseparable formula, under the condition that one set of seal became invalid simultaneously, guarantee equipment can normally work, wherein be located medium side seal mechanism, because with medium intensive contact, need not take into account the heat dissipation problem excessively, and be located the seal mechanism of air side, adopt the lubricating liquid to dispel the heat, guarantee that the seal can not the thermal failure.
As an optimization: the included angle between the lubricating liquid inlet and the lubricating liquid outlet of the sealing seat (10) is 90 degrees, and the radius from the inner wall corresponding to the included angle between the lubricating cavity (12) and the lubricating liquid inlet and the lubricating liquid outlet, which is 90 degrees, to the center of a circle is smaller than the radius from the inner wall of the area outside the included angle between the lubricating liquid inlet and the lubricating liquid outlet, which is 90 degrees, to the center of a circle.
The beneficial effects of the utility model are as follows: the medium side of axis of rotation sets up one set of sealing mechanism, sets up another set of sealing mechanism in the air side, and two sets of sealing mechanism configuration settings have guaranteed the sealing of axis of rotation, especially in the service scenario of screw pump, and the pressure of medium side is great, and two sets of sealing are very important, simultaneously at the sealing mechanism of air side, through setting up built-in rubber runner, this rubber runner forms pump body structure with the seal seat inner wall, utilizes the power rotation of axis of rotation self, makes the lubricating liquid flow, lubricates and dispels the heat to the sealed face, need not external power and control, and overall structure is simple compact, energy-concerving and environment-protective.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic view of a rubber wheel according to the present utility model.
Reference numerals illustrate:
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1: a self-circulation shaft seal mechanism of lubricating liquid comprises a rotating shaft 1, wherein a shaft sleeve 2 is sleeved on the rotating shaft 1 through a sealing ring, and a first movable ring 6 and a rubber rotating wheel 11 are respectively sleeved on the shaft sleeve 2;
the sealing device is characterized by further comprising a circular sealing seat 10, wherein the sealing seat 10 is covered on the rotating shaft 1, a first movable ring 6 and a rubber rotating wheel 11 are positioned in a lubrication cavity 12 of the sealing seat 10, a first stationary ring 7 is arranged on the inner side of the sealing seat 10, and the first stationary ring 7 is in friction fit with the first movable ring 6 to realize sealing;
a lubrication fluid inlet and a lubrication fluid outlet are formed in the shell of the sealing seat 10, and the lubrication fluid inlet and the lubrication fluid outlet are communicated with the lubrication cavity 12.
The shaft sleeve 2 is further sleeved with a second movable ring 3, the sealing seat 10 is further provided with a second static ring 4, the second static ring 4 is in friction fit with the second movable ring 3, the second static ring 4 and the second movable ring 3 are located on the medium side of the rotating shaft 1, and the first static ring 7 and the first movable ring 6 are located on the atmosphere side of the rotating shaft 1.
As shown in fig. 2: the rubber runner 11 is provided with a fixed sleeve 1101, the fixed sleeve 1101 is sleeved on the rotating shaft 1, the rubber runner 11 is fixed on the rotating shaft 1 through elasticity of rubber, blades 1102 are uniformly distributed on the outer surface of the fixed sleeve 1101, and the cross section of the free ends of the blades 1102 is of a circular structure; the lubrication cavity 12 is of an eccentric annular structure, the blades 1102 are in frictional contact with the inner wall of the lubrication cavity 12, specifically, an included angle between a lubrication fluid inlet and a lubrication fluid outlet of the sealing seat 10 is 90 degrees, and a radius from the inner wall corresponding to the included angle between the lubrication cavity 12 and the lubrication fluid inlet and the lubrication fluid outlet, which is 90 degrees, to the center of a circle is smaller than a radius from the inner wall of an area outside the included angle between the lubrication fluid inlet and the lubrication fluid outlet, which is 90 degrees, to the center of a circle.
Because the lubrication cavity 12 is of an eccentric annular structure, at the lubrication liquid inlet, because the rubber blades 1102 have elasticity, when the volume is increased, partial vacuum is formed between the rubber blades 1102, the generated suction sucks external lubrication liquid into the lubrication cavity 12, the rotating rubber blades 1102 send the lubrication liquid between the rubber blades 1102 into the lubrication liquid outlet, and the circulation rotation is realized, so that the circulation between the lubrication liquid external storage tank and the lubrication cavity 12 is realized, and the first stationary ring 7 and the first movable ring 6 are lubricated and cooled.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (4)
1. The utility model provides a lubricating liquid self-loopa's bearing seal mechanism, includes axis of rotation (1), its characterized in that: a shaft sleeve (2) is sleeved on the rotating shaft (1), and a first movable ring (6) and a rubber rotating wheel (11) are respectively sleeved on the shaft sleeve (2);
the sealing device is characterized by further comprising a sealing seat (10), wherein the sealing seat (10) is covered on the rotating shaft (1), the first movable ring (6) and the rubber rotating wheel (11) are positioned in a lubrication cavity (12) of the sealing seat (10), a first static ring (7) is arranged on the inner side of the sealing seat (10), and the first static ring (7) is matched with the first movable ring (6);
a lubricating fluid inlet and a lubricating fluid outlet are formed in the shell of the sealing seat (10), and the lubricating fluid inlet and the lubricating fluid outlet are communicated with the lubricating cavity (12).
2. The lubricating fluid self-circulating shaft seal mechanism according to claim 1, wherein: the rubber rotating wheel (11) is provided with a fixed sleeve (1101), the fixed sleeve (1101) is sleeved on the rotating shaft (1), blades (1102) are uniformly distributed on the outer surface of the fixed sleeve (1101), and the cross section of the free end of each blade (1102) is of a circular structure;
the lubrication cavity (12) is of an eccentric annular structure, and the blades (1102) are in friction contact with the inner wall of the lubrication cavity (12).
3. The lubricating fluid self-circulating shaft seal mechanism according to claim 1, wherein: the shaft sleeve (2) is further sleeved with a second movable ring (3), the sealing seat (10) is further provided with a second stationary ring (4), the second stationary ring (4) is in friction fit with the second movable ring (3), the second stationary ring (4) and the second movable ring (3) are located on the medium side of the rotating shaft (1), and the first stationary ring (7) and the first movable ring (6) are located on the atmosphere side of the rotating shaft (1).
4. The lubricating fluid self-circulating shaft seal mechanism according to claim 2, wherein: the included angle between the lubricating liquid inlet and the lubricating liquid outlet of the sealing seat (10) is 90 degrees, and the included angle between the lubricating cavity (12) and the lubricating liquid inlet and the lubricating liquid outlet is that the radius from the inner wall corresponding to the 90 degrees to the center of a circle is smaller than the radius from the inner wall of the area outside the included angle of 90 degrees between the lubricating liquid inlet and the lubricating liquid outlet to the center of the circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321694313.2U CN219975335U (en) | 2023-06-30 | 2023-06-30 | Shaft seal mechanism with self-circulation lubricating liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321694313.2U CN219975335U (en) | 2023-06-30 | 2023-06-30 | Shaft seal mechanism with self-circulation lubricating liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219975335U true CN219975335U (en) | 2023-11-07 |
Family
ID=88583964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321694313.2U Active CN219975335U (en) | 2023-06-30 | 2023-06-30 | Shaft seal mechanism with self-circulation lubricating liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219975335U (en) |
-
2023
- 2023-06-30 CN CN202321694313.2U patent/CN219975335U/en active Active
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