CN112013023A - Bearing lubricating oil sealing structure - Google Patents
Bearing lubricating oil sealing structure Download PDFInfo
- Publication number
- CN112013023A CN112013023A CN202010885955.5A CN202010885955A CN112013023A CN 112013023 A CN112013023 A CN 112013023A CN 202010885955 A CN202010885955 A CN 202010885955A CN 112013023 A CN112013023 A CN 112013023A
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- CN
- China
- Prior art keywords
- sealing
- ring
- bearing
- wall
- shaft sleeve
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- 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.)
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Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The application belongs to the technical field of bearing lubricating oil seal design, in particular to bearing lubricating oil seal structure, include: a rotating shaft; the shaft sleeve is sleeved on the periphery of the rotating shaft; the inner ring of the bearing is sleeved on the rotating shaft, and the outer ring of the bearing is connected with the shaft sleeve; the baffle ring is sleeved on the rotating shaft, the outer wall of the baffle ring is provided with a sealing groove, the sealing groove is in clearance fit with the inner wall of the shaft sleeve, and lubricating oil is filled between the baffle ring and the bearing; and the sealing rings are arranged in the sealing groove at intervals and are in clearance fit with the sealing groove, and the outer wall of each sealing ring is connected with the inner wall of the shaft sleeve. In the bearing lubricating oil sealing structure, the sealing of the lubricating oil between the baffle ring and the bearing is realized by the throttling effect generated between the baffle ring and each sealing ring, the structure is simple, the requirement on the manufacturing precision is not high, the processing and the assembly are easy, the production efficiency is high, and the cost is low.
Description
Technical Field
The application belongs to the technical field of bearing lubricating oil seal design, and particularly relates to a bearing lubricating oil seal structure.
Background
In the aviation motor, bearing lubrication is an open structure, a labyrinth structure is designed at present, so that bearing lubricating oil loss is avoided, a good dynamic sealing effect is achieved, the bearing lubricating oil loss can be well prevented, the structure is complex, the requirement on manufacturing precision is high, the production and processing efficiency is low, and the manufacturing cost is high.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present patent application.
Disclosure of Invention
In order to solve the technical problem, the application provides a bearing lubricating oil sealing structure.
The technical scheme of the application is as follows:
a bearing lubrication seal structure comprising:
a rotating shaft;
the shaft sleeve is sleeved on the periphery of the rotating shaft;
the inner ring of the bearing is sleeved on the rotating shaft, and the outer ring of the bearing is connected with the shaft sleeve;
the baffle ring is sleeved on the rotating shaft, the outer wall of the baffle ring is provided with a sealing groove, the sealing groove is in clearance fit with the inner wall of the shaft sleeve, and lubricating oil is filled between the baffle ring and the bearing;
and the sealing rings are arranged in the sealing groove at intervals and are in clearance fit with the sealing groove, and the outer wall of each sealing ring is connected with the inner wall of the shaft sleeve.
Preferably, each sealing ring has a notch.
Preferably, the indentations are staggered.
Preferably, the bottom wall of the sealing groove is provided with an annular bulge; the annular protrusions are distributed at intervals with the sealing rings.
Preferably, the method further comprises the following steps:
and each distance piece is correspondingly arranged between two adjacent sealing rings, one end of each distance piece is connected with one sealing ring in the corresponding two adjacent sealing rings, and the other end of each distance piece points to the other sealing ring in the corresponding two adjacent sealing rings.
Preferably, the sleeve is formed by butt-jointing two axially symmetrical parts.
Preferably, each sealing ring is formed by butting two half rings which are symmetrical along the axial direction, wherein the outer wall of one half ring is connected with the inner wall of one part of the shaft sleeve, and the other half ring is connected with the inner wall of the other part of the shaft sleeve.
The application has at least the following beneficial technical effects:
the bearing lubricating oil sealing structure realizes the sealing of the lubricating oil between the baffle ring and the bearing by means of the throttling effect generated between the baffle ring and each sealing ring, has simple structure, low requirement on manufacturing precision, easy processing and assembly, higher production efficiency and low cost.
Drawings
FIG. 1 is a schematic view of a bearing lubrication seal arrangement provided herein;
FIG. 2 is a schematic structural view of a seal ring provided in accordance with an embodiment of the present application;
wherein the content of the first and second substances,
1-a rotating shaft; 2-shaft sleeve; 3-a bearing; 4-a baffle ring; 5-a sealing ring; 6-distance piece; 7-annular projection.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1-2.
A bearing lubrication seal structure comprising:
a rotating shaft 1;
the shaft sleeve 2 is sleeved on the periphery of the rotating shaft 1;
the bearing 3 is sleeved on the rotating shaft 1, and the outer ring is connected with the shaft sleeve 2;
the baffle ring 4 is sleeved on the rotating shaft 1, the outer wall of the baffle ring is provided with a sealing groove, the baffle ring is in clearance fit with the inner wall of the shaft sleeve 2, and lubricating oil is filled between the baffle ring and the bearing 3;
and the sealing rings 5 are arranged in the sealing grooves at intervals and are in clearance fit with the sealing grooves, and the outer walls of the sealing rings are connected with the inner walls of the shaft sleeves 2.
For the bearing lubricating oil sealing structure disclosed in the above embodiment, those skilled in the art can understand that the retaining ring 4 is designed to be in clearance fit with the inner wall of the shaft sleeve 2, that is, a clearance is left between the outer wall of the retaining ring 4 and the inner wall of the shaft sleeve 2, and the sealing rings 5 connected with the inner wall of the shaft sleeve 2 are designed to be in clearance fit with the sealing grooves on the outer wall of the retaining ring 4, that is, clearances are left between the sealing rings 5 and the bottom wall and the side wall of the sealing groove, based on which, the retaining ring 4 can rotate relative to the shaft sleeve 2 and the sealing rings 5 under the driving of the rotating shaft 1, and when the retaining ring 4 rotates under the driving of the rotating shaft 1, a throttling effect is generated between the retaining ring 4 and the sealing rings 5, so that the lubricating oil.
For the bearing lubricating oil sealing structure disclosed in the above embodiment, it can be further understood by those skilled in the art that the sealing of the lubricating oil between the retainer ring 4 and the bearing 3 is realized by the throttling effect generated between the retainer ring 4 and each sealing ring 5, and the bearing lubricating oil sealing structure has the advantages of simple structure, low requirement on manufacturing precision, easiness in processing and assembling, higher production efficiency and low cost.
In some alternative embodiments, each sealing ring 5 has a notch, as shown in fig. 2.
For the bearing lubricating oil sealing structure disclosed in the above embodiment, those skilled in the art can understand that the sealing ring 5 is designed to have a notch, based on which the sealing ring 5 can be broken by force to enlarge the sealing ring 5, and the sealing ring 5 is loosened after being aligned with the sealing groove and contracted into the sealing groove, so that the sealing ring 5 can be assembled in the sealing groove conveniently and quickly.
For the bearing lubricating oil sealing structure disclosed in the above embodiment, a person skilled in the art can assemble the bearing lubricating oil sealing structure according to the following steps:
sleeving a bearing 3 and a baffle ring 4 on a rotating shaft 1 in an interference fit manner, and filling lubricating grease between the bearing 3 and the baffle ring 4;
assembling each sealing ring 5 into a sealing groove;
the shaft sleeve 2 is sleeved on the periphery of the rotating shaft 1, and the inner wall of the shaft sleeve 2 is connected with the bearing 3 and each sealing ring 5 in an interference fit manner.
In some alternative embodiments, the indentations are staggered.
For the bearing lubricating oil sealing structure disclosed in the above embodiment, it can be understood by those skilled in the art that the gaps on each sealing ring 5 are designed to be distributed in a staggered manner, so as to enhance the sealing effect on the lubricating oil between the bearing 3 and the baffle ring 4, and in some more specific embodiments, the gaps on two adjacent sealing rings 4 are designed to be distributed at 180 °.
In some alternative embodiments, the bottom wall of the sealing groove has an annular projection 7; the annular bulges 7 are distributed at intervals with the sealing rings 5 to enhance the sealing effect on lubricating oil between the bearing 3 and the baffle ring 4.
In some optional embodiments, further comprising:
and each distance piece 6 is correspondingly arranged between two adjacent sealing rings 5, one end of each distance piece 6 is connected with one sealing ring 5 corresponding to two adjacent sealing rings 5, and the other end of each distance piece 6 points to the other sealing ring 5 corresponding to two adjacent sealing rings 5.
With regard to the sealing structure for the lubricating oil of the bearing disclosed in the above embodiment, it can be understood by those skilled in the art that the distance piece 6 is arranged between two adjacent sealing rings 5 to control the distance between the adjacent sealing rings 5, so as to avoid the adjacent sealing rings 5 from being attached together, thereby ensuring the sealing effect on the lubricating oil between the bearing 3 and the baffle ring 4.
In some alternative embodiments, the sleeve 2 is formed by two axially symmetrical parts that are butted together.
For the bearing lubricating oil sealing structure disclosed in the above embodiment, a person skilled in the art can assemble the bearing lubricating oil sealing structure according to the following steps:
sleeving a bearing 3 and a baffle ring 4 on a rotating shaft 1 in an interference fit manner, and filling lubricating grease between the bearing 3 and the baffle ring 4;
assembling each sealing ring 5 into a sealing groove;
the two parts forming the shaft sleeve 2 are butted, so that the inner wall of the shaft sleeve 2 is connected with the bearing 3 and each sealing ring 5 in an interference fit manner.
In some alternative embodiments, each sealing ring 5 is formed by two half rings that are axially symmetrical and butted, wherein the outer wall of one half ring is connected with the inner wall of one part of the shaft sleeve 2, and the other half ring is connected with the inner wall of the other part of the shaft sleeve 2.
For the bearing lubricating oil sealing structure disclosed in the above embodiment, a person skilled in the art can assemble the bearing lubricating oil sealing structure according to the following steps:
sleeving a bearing 3 and a baffle ring 4 on a rotating shaft 1 in an interference fit manner, and filling lubricating grease between the bearing 3 and the baffle ring 4;
the two parts forming the shaft sleeve 2 are butted, so that the inner wall of the shaft sleeve 2 is connected with the bearing 3 in a manner of interference fit, and the semi-rings forming each sealing ring 5 are butted in the sealing groove.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (7)
1. A bearing lubricating oil seal structure, characterized by comprising:
a rotating shaft (1);
the shaft sleeve (2) is sleeved on the periphery of the rotating shaft (1);
the bearing (3) is sleeved on the rotating shaft (1) in an inner ring, and an outer ring is connected with the shaft sleeve (2);
the baffle ring (4) is sleeved on the rotating shaft (1), the outer wall of the baffle ring is provided with a sealing groove, the baffle ring is in clearance fit with the inner wall of the shaft sleeve (2), and lubricating oil is filled between the baffle ring and the bearing (3);
and the sealing grooves are arranged at intervals and are in clearance fit with the sealing grooves, and the outer walls of the sealing grooves are connected with the inner wall of the shaft sleeve (2).
2. The bearing lubrication oil sealing structure according to claim 1,
each sealing ring (5) is provided with a notch.
3. The bearing lubrication oil sealing structure according to claim 2,
the notches are distributed in a staggered mode.
4. The bearing lubrication oil sealing structure according to claim 1,
the bottom wall of the sealing groove is provided with an annular bulge (7); the annular bulges (7) are distributed at intervals with the sealing rings (5).
5. The bearing lubrication oil sealing structure according to claim 1,
further comprising:
a plurality of distance pieces (6), every distance piece (6) correspond two adjacent sealing ring (5) set up between, one end with correspond two adjacent one in sealing ring (5) are connected, and the other end direction corresponds two adjacent another in sealing ring (5).
6. The bearing lubrication oil sealing structure according to claim 1,
the shaft sleeve (2) is formed by butting two axially symmetrical parts.
7. The bearing lubrication oil sealing structure according to claim 6,
each sealing ring (5) is formed by butting two semi-rings which are symmetrical along the axial direction, wherein the outer wall of one semi-ring is connected with the inner wall of one part of the shaft sleeve (2), and the other semi-ring is connected with the inner wall of the other part of the shaft sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885955.5A CN112013023A (en) | 2020-08-28 | 2020-08-28 | Bearing lubricating oil sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885955.5A CN112013023A (en) | 2020-08-28 | 2020-08-28 | Bearing lubricating oil sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112013023A true CN112013023A (en) | 2020-12-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010885955.5A Pending CN112013023A (en) | 2020-08-28 | 2020-08-28 | Bearing lubricating oil sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112013023A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107896A (en) * | 2021-05-08 | 2021-07-13 | 唐山市环保机械工程有限公司 | Nondestructive efficient sealing device and method for centrifugal blower or centrifugal compressor |
| CN114354155A (en) * | 2021-12-13 | 2022-04-15 | 陕西航空电气有限责任公司 | Three-way lubricating oil parameter independent verification tool for oil injection motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB918999A (en) * | 1959-12-15 | 1963-02-20 | Dronningborg Maskinfab As | Packing for bearing in an axle hub |
| WO2003025436A1 (en) * | 2001-09-04 | 2003-03-27 | Paul Müller Gmbh & Co. Kg | Sealing arrangement, especially for sealing the shaft of a spindle |
| CN101705996A (en) * | 2009-10-12 | 2010-05-12 | 江苏牡丹离心机制造有限公司 | Sealing device for drive mechanism of horizontal centrifuge |
| CN105917095A (en) * | 2014-02-25 | 2016-08-31 | 三菱重工业株式会社 | Seal structure and supercharger provided with said seal structure |
| CN211117583U (en) * | 2019-10-30 | 2020-07-28 | 南京高精齿轮集团有限公司 | Sealing structure |
-
2020
- 2020-08-28 CN CN202010885955.5A patent/CN112013023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB918999A (en) * | 1959-12-15 | 1963-02-20 | Dronningborg Maskinfab As | Packing for bearing in an axle hub |
| WO2003025436A1 (en) * | 2001-09-04 | 2003-03-27 | Paul Müller Gmbh & Co. Kg | Sealing arrangement, especially for sealing the shaft of a spindle |
| CN101705996A (en) * | 2009-10-12 | 2010-05-12 | 江苏牡丹离心机制造有限公司 | Sealing device for drive mechanism of horizontal centrifuge |
| CN105917095A (en) * | 2014-02-25 | 2016-08-31 | 三菱重工业株式会社 | Seal structure and supercharger provided with said seal structure |
| CN211117583U (en) * | 2019-10-30 | 2020-07-28 | 南京高精齿轮集团有限公司 | Sealing structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107896A (en) * | 2021-05-08 | 2021-07-13 | 唐山市环保机械工程有限公司 | Nondestructive efficient sealing device and method for centrifugal blower or centrifugal compressor |
| CN114354155A (en) * | 2021-12-13 | 2022-04-15 | 陕西航空电气有限责任公司 | Three-way lubricating oil parameter independent verification tool for oil injection motor |
| CN114354155B (en) * | 2021-12-13 | 2024-03-19 | 陕西航空电气有限责任公司 | Independent verification tool for three-way lubricating oil parameters of oil injection motor |
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Application publication date: 20201201 |
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