CN113653804B - Oil seal structure and generator set - Google Patents
Oil seal structure and generator set Download PDFInfo
- Publication number
- CN113653804B CN113653804B CN202110899181.6A CN202110899181A CN113653804B CN 113653804 B CN113653804 B CN 113653804B CN 202110899181 A CN202110899181 A CN 202110899181A CN 113653804 B CN113653804 B CN 113653804B
- Authority
- CN
- China
- Prior art keywords
- ring body
- rotating shaft
- preset
- sealing ring
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 53
- 239000010687 lubricating oil Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 6
- 238000005461 lubrication Methods 0.000 claims description 5
- 239000007779 soft material Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012466 permeate Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to the technical field of generator sets, and discloses an oil seal structure and a generator set, wherein the oil seal structure comprises: a rotation shaft extending along a predetermined axis; the seat body is provided with a mounting hole; the rotating shaft is arranged in the mounting hole in a penetrating way; the sealing ring body is arranged on the seat body and sleeved on the rotating shaft; the dustproof ring body surrounds the outer side of the rotating shaft; a preset gap is formed between the dustproof ring body and the rotating shaft; a preset space communicated with a preset gap is formed among the sealing ring body, the dustproof ring body and the rotating shaft; and a plurality of first blades disposed on the rotating shaft within the predetermined space and for generating an air flow along an axial direction of the rotating shaft and blowing toward the predetermined gap; the plurality of first blades are disposed on an outer side surface of the rotary shaft at intervals around the predetermined axis. The air in the preset space is guided by the plurality of first blades, so that the air pressure of the preset space near the gap is increased, the external air is prevented from entering, and the dustproof effect is good.
Description
Technical Field
The invention relates to the technical field of generator sets, in particular to an oil seal structure and a generator set.
Background
The oil seal is a structure for sealing lubricating oil.
In the generator set, when the rotating shaft and the oil seal relatively rotate, a layer of stable oil film is generated between the sealing ring body of the oil seal and the rotating shaft, and lubricating oil on the inner side of the sealing ring body is sealed.
In the prior art, the dust-proof ring body is generally arranged to block the air at the external air side, so that the external air with fine particles is prevented from entering an oil film, and abrasion between the sealing ring body and the rotating shaft is accelerated.
However, a certain gap is formed between the dustproof ring body and the rotating shaft, and external air cannot be well prevented from entering the oil film only by arranging the dustproof ring body.
Disclosure of Invention
The purpose of the invention is that: the oil seal structure and the application thereof can effectively prevent external air from entering an oil film.
In order to achieve the above object, a first aspect of the present invention provides an oil seal structure, comprising: a rotation shaft extending along a predetermined axis; the seat body is provided with a mounting hole; the rotating shaft is arranged in the mounting hole in a penetrating way; the sealing ring body is arranged on the seat body and sleeved on the rotating shaft; the dustproof ring body surrounds the outer side of the rotating shaft; a preset gap is formed between the dustproof ring body and the rotating shaft; the sealing ring body and the dustproof ring body are arranged at intervals in the extending direction of the rotating shaft; a preset space communicated with the preset gap is formed among the sealing ring body, the dustproof ring body and the rotating shaft; and a plurality of first blades disposed on the rotating shaft within the predetermined space and for generating an air flow along an axial direction of the rotating shaft and blowing toward the predetermined gap; the plurality of first blades are disposed on an outer side surface of the rotating shaft at intervals around the predetermined axis.
Further, the section of the dustproof ring body is triangular; the dustproof ring body is provided with a first tip facing the outer side surface of the rotating shaft, one side of the first tip forms a first inclined surface inclined to the sealing ring body, and the other side of the first tip forms a second inclined surface;
Setting a plane perpendicular to the rotation axis as a predetermined plane; the included angle between the first inclined plane and the preset plane is smaller than the included angle between the second inclined plane and the preset plane.
Further, the device also comprises a first elastic ring; the first elastic ring is arranged around the preset axis, the base body is provided with a first annular groove which is arranged around the preset axis and is positioned outside the dustproof ring body, and the first elastic ring is clamped in the first annular groove.
Further, a plurality of second blades; a plurality of second blades respectively provided on the rotating shaft in the predetermined space and for generating an air flow in an axial direction of the rotating shaft and blowing toward the predetermined gap; the plurality of second blades are arranged on the outer side face of the rotating shaft at intervals around the preset axis, and the first blades and the second blades are arranged at intervals in the extending direction of the preset axis.
Further, the cross section of the sealing ring body is triangular; the sealing ring body is provided with a second tip towards the outer side face of the rotating shaft, one side of the second tip forms a third inclined plane inclined towards the dustproof ring body, and the other side of the second tip forms a fourth inclined plane; setting a plane perpendicular to the rotation axis as a predetermined plane; the included angle between the third inclined plane and the preset plane is smaller than the included angle between the fourth inclined plane and the preset plane.
Further, a second elastic ring is also included; the second elastic ring is arranged around the preset axis, the seat body is provided with a second annular groove which is arranged around the preset axis and is positioned outside the sealing ring body, and the second elastic ring is clamped in the second annular groove.
Further, a gas source for storing gas is arranged in the seat body; the air source is communicated to the preset space through a pipeline.
Further, the sealing ring body comprises a wear-resistant pad clamped between the sealing ring body and the outer side face of the rotating shaft.
Further, the seat body is a soft material integrated piece, and a framework of the hard material integrated piece is embedded in the seat body.
Compared with the prior art, the oil seal structure has the beneficial effects that:
According to the oil seal structure provided by the embodiment of the invention, the plurality of first blades are arranged to guide the gas in the preset space, so that the air pressure of the preset space near the gap is increased, the entry of external air is blocked, the dust prevention effect is good, and the serious abrasion of the sealing ring body and the rotating shaft caused by the entry of particles carried by the external air into the oil film is avoided.
A second aspect of the embodiment of the present invention provides a generator set, including the lubricating oil and the oil seal structure provided in the first aspect; one side of the sealing ring body, which is away from the dustproof ring body, forms a lubrication chamber for accommodating lubricating oil.
Drawings
Fig. 1 is a schematic view of an oil seal structure according to an embodiment of the present invention.
Fig. 2 is an enlarged view at a in fig. 1 of an embodiment of the present invention.
In the drawing the view of the figure,
1. A rotation shaft; 11. a wear pad; 2. a base; 21. a skeleton; 3. a dust-proof ring body; 31. a first tip; 32. a first inclined surface; 33. a second inclined surface; 4. a seal ring body; 41. a second tip; 42. a third inclined surface; 43. a fourth inclined surface; 5. a first blade; 6. a first elastic ring; 7. a second blade; 8. a second elastic ring; 9. a predetermined space; 91. a gap.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
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 one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, 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; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Referring to fig. 1 and 2, a first aspect of the preferred embodiment of the present invention provides an oil seal structure, which includes a base 2, a seal ring 4, a dust ring 3, and a plurality of first blades 5; a rotation shaft 1 extending along a predetermined axis; the seat body 2 is provided with a mounting hole; the rotating shaft 1 is arranged in the mounting hole in a penetrating way; the sealing ring body 4 is arranged on the seat body 2 and sleeved on the rotating shaft 1; the dustproof ring body 3 surrounds the outer side of the rotating shaft 1; a predetermined gap 91 is formed between the dust-proof ring body 3 and the rotary shaft 1; the sealing ring body 4 and the dustproof ring body 3 are arranged at intervals in the extending direction of the rotating shaft 1; a predetermined space 9 communicating with the predetermined gap 91 is formed among the seal ring body 4, the dust-proof ring body 3, and the rotation shaft 1; a plurality of first blades 7 are provided on the rotating shaft 1 in the predetermined space 9 and serve to generate an air flow along the axial direction of the rotating shaft 1 and blowing toward the predetermined gap 91; a plurality of the first blades 7 are provided on the outer side surface of the rotary shaft 1 at intervals around the predetermined axis.
In this embodiment, in use, the seal ring 4 abuts against the outer side surface of the rotary shaft 1, one side of the seal ring 4 forms an oil side accommodating lubricating oil, and the other side of the seal ring 4 forms an outside air side accommodating the dust-proof ring 3.
When the rotating shaft 1 rotates, a stable oil film is formed between the sealing ring body 4 and the outer side surface of the rotating shaft 1, so that the outside air side and the oil side are isolated; at the same time, the first vane 5 rotates with the rotation shaft 1, the gas in the predetermined space 9 between the inner side surface of the housing 2 and the outer side surface of the rotation shaft 1 is disturbed, and flows to the gap 91 between the dust-proof ring 3 and the outer side surface of the rotation shaft 1 via the first vane 5, so that the external air ready to flow into the space between the dust-proof ring 3 and the seal ring 4 via the gap 91 is impacted by the gas in the predetermined space 9, and cannot enter between the dust-proof ring 3 and the seal ring 4, thereby achieving the dust-proof effect.
In this embodiment, through setting up a plurality of first blades 5, carry out the water conservancy diversion to the gas in the predetermined space 9 for the atmospheric pressure of predetermined space 9 near clearance 91 department rises, blocks external air and gets into, and dustproof effect is good, avoids external air to carry particles to get into oil film department and leads to seal ring body 4 and rotation axis 1 wearing and tearing seriously.
Further, in one embodiment, referring to fig. 1 and 2, the dust-proof ring 3 has a triangular cross section; the dust-proof ring body 3 has a first tip 31 facing the outer side surface of the rotary shaft 1, one side of the first tip 31 forms a first inclined surface 32 inclined toward the seal ring body 4, and the other side of the first tip 31 forms a second inclined surface 33; setting a plane perpendicular to the rotation axis 1 as a predetermined plane; the angle between the first inclined surface 32 and the predetermined plane is smaller than the angle between the second inclined surface 33 and the predetermined plane.
In this embodiment, the dust-proof ring 3 is further limited, and since the slope of the first inclined surface 32 is smaller, the distance between the first inclined surface 32 and the outer side surface of the rotating shaft 1 is smaller in the direction toward the first tip 31; when the driving gas flows toward the gap 91, the pressure and the flow rate of the first vane 5 are increased by the first inclined surface 32, so that a large pressure difference is formed between the predetermined space 9 on one side of the gap 91 and the outside air on the other side of the gap 91 to further block the outside air from entering the predetermined space 9 through the gap 91.
Further, in one embodiment, referring to fig. 1 and 2, the elastic ring further includes a first elastic ring 6; the first elastic ring 6 is arranged around the preset axis, the base 2 is provided with a first annular groove which is arranged around the preset axis and is positioned outside the dustproof ring body, and the first elastic ring 6 is clamped in the first annular groove.
In this embodiment, the first elastic ring 6 is clamped in the first annular groove, so that the pressure distribution on two sides of the dust-proof ring body 3 is uneven. In the process of rotating the rotating shaft 1 at a high speed, under the action of uneven pressure distribution, the dustproof ring body 3 reciprocates in the axial direction of the rotating shaft 1 on a microscopic level to form an axial flow pump on the microscopic level, air in the gap 91 is conveyed to the side deviating from the sealing ring body 4, and two axial acting forces are applied to the air in the gap 91 by matching with the arrangement of the plurality of first blades 5, so that the air in the gap 91 can flow out of the gap 91 more smoothly, and the dustproof effect is better realized.
Further, in one embodiment, referring to fig. 1 and 2, a plurality of second blades 7 are further included; a plurality of the second blades 7 are respectively provided on the rotating shaft 1 in the predetermined space 9 and serve to generate an air flow along the axial direction of the rotating shaft 1 and blowing toward the predetermined gap 91; a plurality of the second blades 7 are provided on the outer side surface of the rotary shaft 1 at intervals around the predetermined axis, and the first blades 7 and the second blades 8 are provided at intervals in the extending direction of the predetermined axis.
In this embodiment, the same as the first blade 5, when the rotation shaft 1 rotates, the second blade 7 rotates along with the rotation shaft 1, and because the oil film is relatively stable and belongs to a micro-level structure, the gas between the dust-proof ring 3 and the seal ring 4 cannot dissolve into and permeate the oil film when being driven to the oil film, but gathers in the oil film to form a region with higher pressure near the oil film. And if lubricating oil is to permeate from the oil side to the air side through the oil film, the lubricating oil is difficult to permeate to the air side under the action of the pressure difference on both sides of the seal ring body 4. Thus, the present invention achieves a good permeation prevention function for lubricating oil by providing the second vane 7.
Further, in one embodiment, referring to fig. 1 and 2, the cross section of the seal ring body 4 is triangular; the sealing ring body 4 has a second tip 41 facing the outer side surface of the rotary shaft 1, one side of the second tip 41 forms a third inclined surface 42 inclined toward the dust-proof ring body 3, the other side of the second tip 41 forms a fourth inclined surface 43, and a plane perpendicular to the rotary shaft 1 is set as a predetermined plane; the angle between the third inclined surface 43 and the predetermined plane is smaller than the angle between the fourth inclined surface 44 and the predetermined plane.
In the present embodiment, the third inclined surface 42 and the fourth inclined surface 43 are provided in the same manner as the first inclined surface 32 and the second inclined surface 33, so that the pressure difference across the oil film can be increased, thereby more effectively ensuring that the lubricating oil does not ooze.
Further, in one embodiment, referring to fig. 1 and 2, a second elastic ring 8 is further included; the second elastic ring 8 is arranged around the preset axis, the seat body 2 is provided with a second annular groove which is arranged around the preset axis and is positioned outside the sealing ring body, and the second elastic ring 8 is clamped in the second annular groove.
In this embodiment, the seal ring body 4 reciprocates in the axial direction of the rotary shaft 1 on the microscopic level in the same manner as the arrangement of the first elastic ring 6 and the first annular groove, so that an axial flow pump on the microscopic level is formed, and lubricating oil oozing from the oil film can reflow to the oil side again under the action of the pressure difference on both sides of the oil film and the reciprocation of the seal ring body 4.
Further, in one embodiment, referring to fig. 1 and 2, a gas source for storing gas is disposed in the seat 2; the air source is communicated to the preset space 9 through a pipeline.
In this embodiment, an air source is provided to supply air to the first blade 5 to supply air exhausted through the gap 91, so as to avoid forming a partial vacuum between the dust-proof ring 3 and the seal ring 4, and further avoid the lubrication oil on the lubrication oil side from flowing into between the dust-proof ring 3 and the seal ring 4.
In combination with the provision of the second vane 7, the air source also makes the pressure on the air side close to the oil film constant, firmly blocking the oil film.
Further, in an embodiment, referring to fig. 1 and 2, the wear-resistant pad 11 is further included for being clamped between the seal ring 4 and the outer side surface of the rotating shaft 1, so that the entire rotating shaft 1 needs to be replaced after the rotating shaft 1 is worn.
Further, in an embodiment, referring to fig. 1 and 2, the base 2 is an integral piece of soft material, and the frame 21 of the integral piece of hard material is embedded in the base 2. Wherein, the soft material can be rubber, and the hard material can be stainless steel.
A second aspect of the embodiment of the present invention provides a generator set, including the lubricating oil and the oil seal structure provided in the first aspect; the side of the sealing ring body 4 facing away from the dust-proof ring body 3 forms a lubrication chamber for accommodating the lubricating oil.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An oil seal structure, characterized by comprising:
a rotation shaft extending along a predetermined axis;
the seat body is provided with a mounting hole; the rotating shaft is arranged in the mounting hole in a penetrating way;
the sealing ring body is arranged on the seat body and sleeved on the rotating shaft;
the dustproof ring body surrounds the outer side of the rotating shaft; a preset gap is formed between the dustproof ring body and the rotating shaft; the sealing ring body and the dustproof ring body are arranged at intervals in the extending direction of the rotating shaft; a preset space communicated with the preset gap is formed among the sealing ring body, the dustproof ring body and the rotating shaft; and
A plurality of first blades provided on the rotating shaft in the predetermined space and for generating an air flow along an axial direction of the rotating shaft and blowing toward the predetermined gap; a plurality of the first blades are arranged on the outer side surface of the rotating shaft at intervals around the preset axis;
When the rotating shaft rotates, a stable oil film is formed between the sealing ring body and the outer side surface of the rotating shaft; the first blades guide the gas in the preset space, so that the air pressure of the preset space close to the gap is increased, and the outside air is prevented from carrying particles into the oil film;
During the rotation of the rotating shaft, the dustproof ring body can do reciprocating motion in the axial direction of the rotating shaft, and air in the gap is conveyed to one side deviating from the sealing ring body; the sealing ring body can do reciprocating motion in the axial direction of the rotating shaft, so that lubricating oil oozing from an oil film can flow back to the oil side again under the action of pressure difference on two sides of the oil film and the reciprocating action of the sealing ring body;
An air source for storing air is arranged in the seat body; the air source is communicated to the preset space through a pipeline; the air source is arranged to supply air to the first blade, and the air exhausted through the gap is supplied, so that partial vacuum is prevented from being formed between the dustproof ring body and the sealing ring body, and lubricating oil on the lubricating oil side is prevented from flowing into the space between the dustproof ring body and the sealing ring body; the air source can also enable the pressure of the air side close to the oil film to be constant, and the oil film can be firmly blocked.
2. The oil seal structure according to claim 1, wherein the dust-proof ring body has a triangular cross section;
the dustproof ring body is provided with a first tip facing the outer side surface of the rotating shaft, one side of the first tip forms a first inclined surface inclined to the sealing ring body, and the other side of the first tip forms a second inclined surface;
Setting a plane perpendicular to the rotation axis as a predetermined plane; the included angle between the first inclined plane and the preset plane is smaller than the included angle between the second inclined plane and the preset plane.
3. The oil seal structure according to claim 1, further comprising a first elastic ring;
The first elastic ring is arranged around the preset axis, the base body is provided with a first annular groove which is arranged around the preset axis and is positioned outside the dustproof ring body, and the first elastic ring is clamped in the first annular groove.
4. The oil seal structure according to claim 1, further comprising a plurality of second vanes; a plurality of second blades respectively provided on the rotating shaft in the predetermined space and for generating an air flow in an axial direction of the rotating shaft and blowing toward the predetermined gap; the plurality of second blades are arranged on the outer side face of the rotating shaft at intervals around the preset axis, and the first blades and the second blades are arranged at intervals in the extending direction of the preset axis.
5. The oil seal structure according to claim 4, wherein the seal ring body has a triangular cross section;
The sealing ring body is provided with a second tip towards the outer side face of the rotating shaft, one side of the second tip forms a third inclined plane inclined towards the dustproof ring body, and the other side of the second tip forms a fourth inclined plane;
Setting a plane perpendicular to the rotation axis as a predetermined plane; the included angle between the third inclined plane and the preset plane is smaller than the included angle between the fourth inclined plane and the preset plane.
6. The oil seal structure according to claim 4, further comprising a second elastic ring;
The second elastic ring is arranged around the preset axis, the seat body is provided with a second annular groove which is arranged around the preset axis and is positioned outside the sealing ring body, and the second elastic ring is clamped in the second annular groove.
7. The oil seal structure according to claim 1, further comprising a wear pad sandwiched between the seal ring body and an outer side surface of the rotary shaft.
8. The oil seal structure according to claim 1, wherein the base is a soft material integrated piece, and a skeleton of a hard material integrated piece is embedded in the base.
9. A generator set comprising lubricating oil and an oil seal according to any one of claims 1 to 8;
One side of the sealing ring body, which is away from the dustproof ring body, forms a lubrication chamber for accommodating lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110899181.6A CN113653804B (en) | 2021-08-05 | 2021-08-05 | Oil seal structure and generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110899181.6A CN113653804B (en) | 2021-08-05 | 2021-08-05 | Oil seal structure and generator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113653804A CN113653804A (en) | 2021-11-16 |
| CN113653804B true CN113653804B (en) | 2024-06-04 |
Family
ID=78490439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110899181.6A Active CN113653804B (en) | 2021-08-05 | 2021-08-05 | Oil seal structure and generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113653804B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403721A (en) * | 2001-08-31 | 2003-03-19 | Lg电子株式会社 | Fan with dustproof device |
| JP2007064459A (en) * | 2005-09-02 | 2007-03-15 | Nok Corp | Sealing device |
| WO2013143315A1 (en) * | 2012-03-26 | 2013-10-03 | 吴江天龙电子机械设备有限公司 | Rotating shaft dynamic seal structure of submersible motor |
| CN104175434A (en) * | 2014-07-25 | 2014-12-03 | 宁国中辰密封件有限公司 | Small-size annular sealing part trimming device |
| CN104226594A (en) * | 2013-06-08 | 2014-12-24 | 昆山市密友装备制造有限责任公司 | Dust seal structure of grading wheel of jet mill |
| CN108397309A (en) * | 2018-04-19 | 2018-08-14 | 浙江吉利控股集团有限公司 | crankshaft oil seal device and automobile engine |
| CN108678877A (en) * | 2018-03-26 | 2018-10-19 | 潍柴动力股份有限公司 | Air prefilter and air filtration system for engine |
| CN108757543A (en) * | 2018-05-24 | 2018-11-06 | 王永 | A kind of dust-proof mechanism of fan bearing |
| CN208107161U (en) * | 2018-03-28 | 2018-11-16 | 童春国 | A kind of wind driven generator principal shaft Split oil seal |
| CN210585108U (en) * | 2019-06-20 | 2020-05-22 | 南昌矿山机械有限公司 | Dustproof device of single-cylinder hydraulic cone crusher |
| JP2020079611A (en) * | 2018-11-12 | 2020-05-28 | Nok株式会社 | Airflow generation structure and sealing construction |
| CN111492162A (en) * | 2018-04-02 | 2020-08-04 | Nok株式会社 | Airflow generation structure and seal structure |
| CN211778973U (en) * | 2020-01-21 | 2020-10-27 | 武汉新置密封科技有限公司 | Unidirectional pre-tightening sealing device for variable pitch bearing |
| CN211778975U (en) * | 2020-01-21 | 2020-10-27 | 武汉新置密封科技有限公司 | Bidirectional pre-tightening sealing device for variable-pitch bearing |
| CN212775567U (en) * | 2020-05-07 | 2021-03-23 | 武汉新置密封科技有限公司 | Bearing sealing device for wind turbine generator |
| CN213361038U (en) * | 2020-08-24 | 2021-06-04 | 宁波东力传动设备有限公司 | Speed reducer sealing structure |
| CN213711871U (en) * | 2020-10-29 | 2021-07-16 | 陕西航空电气有限责任公司 | Dynamic sealing device with outward structure |
-
2021
- 2021-08-05 CN CN202110899181.6A patent/CN113653804B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403721A (en) * | 2001-08-31 | 2003-03-19 | Lg电子株式会社 | Fan with dustproof device |
| JP2007064459A (en) * | 2005-09-02 | 2007-03-15 | Nok Corp | Sealing device |
| WO2013143315A1 (en) * | 2012-03-26 | 2013-10-03 | 吴江天龙电子机械设备有限公司 | Rotating shaft dynamic seal structure of submersible motor |
| CN104226594A (en) * | 2013-06-08 | 2014-12-24 | 昆山市密友装备制造有限责任公司 | Dust seal structure of grading wheel of jet mill |
| CN104175434A (en) * | 2014-07-25 | 2014-12-03 | 宁国中辰密封件有限公司 | Small-size annular sealing part trimming device |
| CN108678877A (en) * | 2018-03-26 | 2018-10-19 | 潍柴动力股份有限公司 | Air prefilter and air filtration system for engine |
| CN208107161U (en) * | 2018-03-28 | 2018-11-16 | 童春国 | A kind of wind driven generator principal shaft Split oil seal |
| CN111492162A (en) * | 2018-04-02 | 2020-08-04 | Nok株式会社 | Airflow generation structure and seal structure |
| CN108397309A (en) * | 2018-04-19 | 2018-08-14 | 浙江吉利控股集团有限公司 | crankshaft oil seal device and automobile engine |
| CN108757543A (en) * | 2018-05-24 | 2018-11-06 | 王永 | A kind of dust-proof mechanism of fan bearing |
| JP2020079611A (en) * | 2018-11-12 | 2020-05-28 | Nok株式会社 | Airflow generation structure and sealing construction |
| CN210585108U (en) * | 2019-06-20 | 2020-05-22 | 南昌矿山机械有限公司 | Dustproof device of single-cylinder hydraulic cone crusher |
| CN211778973U (en) * | 2020-01-21 | 2020-10-27 | 武汉新置密封科技有限公司 | Unidirectional pre-tightening sealing device for variable pitch bearing |
| CN211778975U (en) * | 2020-01-21 | 2020-10-27 | 武汉新置密封科技有限公司 | Bidirectional pre-tightening sealing device for variable-pitch bearing |
| CN212775567U (en) * | 2020-05-07 | 2021-03-23 | 武汉新置密封科技有限公司 | Bearing sealing device for wind turbine generator |
| CN213361038U (en) * | 2020-08-24 | 2021-06-04 | 宁波东力传动设备有限公司 | Speed reducer sealing structure |
| CN213711871U (en) * | 2020-10-29 | 2021-07-16 | 陕西航空电气有限责任公司 | Dynamic sealing device with outward structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113653804A (en) | 2021-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5051860B2 (en) | Mechanical seal device | |
| CN113653804B (en) | Oil seal structure and generator set | |
| EP2870359B1 (en) | Scroll pump | |
| CN201428643Y (en) | Sealed cycle structure of medium self-flushing machine | |
| CN110541830B (en) | Self-suction sewage pump with double-opening ring seal | |
| CN111360694A (en) | Air seal mechanism for front end of main shaft | |
| KR20180103146A (en) | Journal Bearing & Rotating Machinery | |
| CN211599031U (en) | Centrifugal air compressor | |
| CN214698845U (en) | Integrated sealing oil seal for bearing seat of steam turbine | |
| CN111022343B (en) | Centrifugal air compressor | |
| JP2016023581A (en) | Gear pump and motor | |
| CN210769125U (en) | Miniature hydroelectric generator | |
| JP6578515B2 (en) | Vortex pump | |
| CN206290474U (en) | Bearing in pump case non-contact type end cap | |
| CN210623101U (en) | Novel shielding multistage pump | |
| CN212273040U (en) | Combined type fluid shaft end sealing device | |
| CN213743964U (en) | Mechanical seal for single screw pump | |
| CN113653803B (en) | Shaft seal structure and gas turbine with same | |
| CN219139344U (en) | Swing rotor pump capable of improving wear resistance | |
| CN220193217U (en) | Tooth-flushing device | |
| CN218510176U (en) | Mechanical sealing device and centrifugal pump | |
| CN211230687U (en) | Miniature hydroelectric generator with waterproof function | |
| CN218509781U (en) | Double-sided impeller of sewage pump | |
| CN213511343U (en) | Novel submerged centrifugal pump shaft seal form | |
| CN201190696Y (en) | Cooling and sealing device for bearing of water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |