CN112797078A - Bearing seal supporting structure - Google Patents
Bearing seal supporting structure Download PDFInfo
- Publication number
- CN112797078A CN112797078A CN202110170152.6A CN202110170152A CN112797078A CN 112797078 A CN112797078 A CN 112797078A CN 202110170152 A CN202110170152 A CN 202110170152A CN 112797078 A CN112797078 A CN 112797078A
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- CN
- China
- Prior art keywords
- bearing
- sealing device
- graphite sealing
- hole
- communicated
- 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.)
- Pending
Links
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 73
- 239000010439 graphite Substances 0.000 claims abstract description 73
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 68
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 56
- 239000010687 lubricating oil Substances 0.000 description 13
- 238000005259 measurement Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
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
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
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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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/08—Rigid support of bearing units; Housings, e.g. caps, covers for spindles
- F16C35/12—Rigid support of bearing units; Housings, e.g. caps, covers for spindles with ball or roller bearings
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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
- F16C37/00—Cooling of bearings
- F16C37/007—Cooling of bearings of rolling bearings
-
- 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
Abstract
The application belongs to the technical field of bearing seal support design, concretely relates to bearing seal supporting structure, include: the supporting seat is provided with a mounting hole and an oil return hole; a bearing installed in the installation hole; the graphite sealing device is installed in the installation hole; the oil return hole is communicated with the space between the bearing and the graphite sealing device; the rotating shaft is sleeved with the bearing and the graphite sealing device, is provided with a bearing oil supply hole and a graphite sealing device oil supply hole, and is internally provided with an oil supply channel; one end of the oil supply channel extends to the outer surface of the rotating shaft; the bearing oil supply hole is communicated with the oil supply channel and the part where the bearing is located; the graphite sealing device oil supply hole is communicated with the oil supply channel and communicated to the position of the graphite sealing device.
Description
Technical Field
The application belongs to the technical field of bearing seal support design, and particularly relates to a bearing seal support structure.
Background
The bearing cup joints in the pivot, is the important biography power part among the aeroengine, installs on bearing structure more, supports by bearing structure, under some circumstances, needs installation sealing device to seal, and under this situation, current bearing structure function singleness only has the supporting role, lacks functions such as bleed, oil extraction, temperature measurement, can not effectively guarantee bearing, sealing device's performance.
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 application.
Disclosure of Invention
It is an object of the present application to provide a bearing seal support structure that overcomes or mitigates at least one aspect of the technical disadvantages known to exist.
The technical scheme of the application is as follows:
a bearing seal support structure comprising:
the supporting seat is provided with a mounting hole and an oil return hole;
a bearing installed in the installation hole;
the graphite sealing device is installed in the installation hole; the oil return hole is communicated with the space between the bearing and the graphite sealing device;
the rotating shaft is sleeved with the bearing and the graphite sealing device, is provided with a bearing oil supply hole and a graphite sealing device oil supply hole, and is internally provided with an oil supply channel; wherein the content of the first and second substances,
one end of the oil supply channel extends to the outer surface of the rotating shaft;
the bearing oil supply hole is communicated with the oil supply channel and the part where the bearing is located;
the graphite sealing device oil supply hole is communicated with the oil supply channel and communicated to the position of the graphite sealing device.
According to at least one embodiment of the present application, in the bearing seal support structure, the oil return holes are distributed along a circumferential direction.
According to at least one embodiment of the present application, the bearing seal support structure further includes:
an arc-shaped oil collecting groove extending along the circumferential direction is formed in the mounting hole; the arc oil collecting groove is positioned at the bottom of the space between the bearing and the graphite sealing device and is communicated with the oil return hole.
According to at least one embodiment of the present application, in the bearing seal support structure, a distance between the end side walls of the arc-shaped oil sump is gradually increased toward the bottom wall.
According to at least one embodiment of the present application, in the bearing seal support structure, the support seat has an oil drain hole; the oil drain hole is communicated with the position of the graphite sealing device.
According to at least one embodiment of the present application, in the bearing seal supporting structure, the supporting seat has an air guiding hole; the air vent is communicated with the position of the graphite sealing device.
According to at least one embodiment of the present application, in the bearing seal support structure, the support seat has a measurement channel; the measuring channel is communicated with the position where the graphite sealing device is located, and the other end of the measuring channel is communicated with the outer surface of the supporting seat.
According to at least one embodiment of the present application, the bearing seal support structure further includes:
and the measuring joint is arranged at one end of the measuring channel, which is back to the graphite sealing device.
According to at least one embodiment of the present application, the bearing seal support structure further includes:
and the distance sleeve is sleeved on the rotating shaft and is positioned between the bearing and the graphite sealing device.
According to at least one embodiment of the present application, in the bearing seal support structure, the outer wall of the rotating shaft has a limiting protrusion;
the bearing seal support structure further includes:
and the limiting bolt is screwed on the rotating shaft and matched with the limiting protrusion to clamp the bearing and the graphite sealing device along the axial direction.
Drawings
FIG. 1 is a schematic view of a bearing seal support structure provided by an embodiment of the present application;
FIG. 2 is a sectional view taken along line I-I of FIG. 1;
FIG. 3 is a partial schematic view of a bearing seal support structure provided by an embodiment of the present application;
wherein:
1-a support seat; 2-a bearing; 3-a graphite sealing device; 4-a rotating shaft; 5-measuring the joint; 6-distance sleeve; 7-a limit bolt;
a-oil return hole; b-bearing oil supply holes; c-graphite sealing device oil supply hole; d-an oil supply channel; e-arc oil collecting tank; f-oil drainage hole; g-gas introduction holes; h-measurement channel.
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 technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
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 to 3.
A bearing seal support structure comprising:
the supporting seat 1 is provided with a mounting hole and an oil return hole A;
a bearing 2 installed in the installation hole;
a graphite sealing device 3 installed in the installation hole; the oil return hole A is communicated with the space between the bearing 2 and the graphite sealing device 3;
the rotating shaft 4 is sleeved with the bearing 2 and the graphite sealing device 3, is provided with a bearing oil supply hole B and a graphite sealing device oil supply hole C, and is internally provided with an oil supply channel D; wherein the content of the first and second substances,
one end of the oil supply channel D extends to the outer surface of the rotating shaft 4;
the bearing oil supply hole B is communicated with the oil supply channel D and is communicated to the position of the bearing 2;
the graphite sealing device oil supply hole C is communicated with the oil supply channel D and is communicated to the position of the graphite sealing device 3.
With regard to the bearing seal support structure disclosed in the above embodiments, it will be understood by those skilled in the art that the bearing seal support structure can be used as a seal support structure for a bearing in an aircraft engine, and when the bearing seal support structure is used as a seal support structure for a bearing in an aircraft engine, lubricating oil can be injected into the oil supply passage D, the lubricating oil injected into the oil supply passage D can flow to the bearing 2 through the bearing oil supply hole B under the centrifugal force, cool and lubricate the bearing 2, and flow to the graphite seal device 3 through the graphite seal device oil supply hole C, and cool and lubricate the graphite seal device 3.
With regard to the bearing seal support structure disclosed in the above embodiment, it can be further understood by those skilled in the art that the lubricating oil after cooling and lubricating the bearing 2 and the graphite sealing device 3 flows into the space between the bearing 2 and the graphite sealing device 3 and flows out from the oil return hole a, so that the lubricating oil after cooling and lubricating the bearing 2 and the graphite sealing device 3 can be prevented from accumulating between the bearing 2 and the graphite sealing device 3 and flowing back to the bearing 2 and the graphite sealing device 3, which causes the stirring and heating of the lubricating oil, and affects the performance and the service life of the bearing 2 and the graphite sealing device 3.
In some alternative embodiments, the oil return holes a in the bearing seal support structure are distributed along the circumferential direction, and in addition, in order to facilitate the outflow of the lubricant from the space between the bearing 2 and the graphite sealing device 3, each oil return hole a may be designed to be inclined at a certain angle, and the cross section of each oil return hole a may be designed according to the actual situation, for example, the cross section of each oil return hole a may be designed to be kidney-shaped or circular.
In some optional embodiments, the bearing seal support structure further includes:
an arc-shaped oil collecting groove E extending along the circumferential direction is formed in the mounting hole; the arc oil collecting groove E is positioned at the bottom of the space between the bearing 2 and the graphite sealing device 3 and is communicated with the oil return hole A.
With respect to the bearing seal support structure disclosed in the above embodiments, it can be understood by those skilled in the art that the lubricating oil after cooling and lubricating the bearing 2 and the graphite sealing device 3 flows into the space between the bearing 2 and the graphite sealing device 3, is collected in the arc-shaped oil collecting groove E at the bottom, and then flows out through the oil return holes a communicating with the arc-shaped oil collecting groove E.
In some optional embodiments, in the bearing seal support structure, the distance between the two end side walls of the arc-shaped oil collecting groove E gradually increases towards the bottom wall thereof, so as to efficiently collect the lubricating oil flowing into the space between the bearing 2 and the graphite sealing device 3, avoid backflow of the lubricating oil, and facilitate outflow of the collected lubricating oil from each oil return hole a communicated with the oil return hole.
In some alternative embodiments, in the bearing seal support structure, the support seat 1 has an oil drain hole F; the oil drain hole F is communicated with the part where the graphite sealing device 3 is positioned.
For the bearing seal support structure disclosed in the above embodiment, it can be understood by those skilled in the art that, in the process of cooling and lubricating the bearing 2 and the graphite seal device 3 with lubricating oil, a small amount of lubricating oil which is difficult to avoid oil return splashes into the gap between the graphite seal device 3 and the mounting hole, an oil drain hole F which is communicated with the graphite seal device 3 is designed on the support base 1, and the lubricating oil splashed into the gap between the graphite seal device 3 and the mounting hole can be discharged, so that the phenomenon that the lubricating oil accumulates in the gap between the graphite seal device 3 and the mounting hole to cause the performance degradation or failure of the graphite seal device 3 can be avoided.
In some optional embodiments, in the above bearing seal support structure, the support seat 1 has an air guiding hole G; the air-bleed hole G is communicated to the position of the graphite sealing device 3 so as to bleed air to the position of the graphite sealing device 3, and the air-bleed sealing of the graphite sealing device 3 is realized.
In some alternative embodiments, in the above bearing seal supporting structure, the supporting seat 1 has a measuring channel H; the measuring channel H is communicated with the position of the graphite sealing device 3, and the other end is communicated with the outer surface of the supporting seat 1.
For the bearing seal support structure disclosed in the above embodiment, those skilled in the art can understand that the temperature and pressure in the cavity of the graphite sealing device 3 are important parameters for representing the performance thereof, and the measurement channel H communicated to the position of the graphite sealing device 3 is designed on the support base 1 to be used for leading out a measurement lead, so that the measurement of the temperature and pressure in the cavity of the graphite sealing device 3 can be conveniently realized.
In some optional embodiments, the bearing seal support structure further includes:
and the measuring joint 5 is arranged at one end of the measuring channel H, which faces away from the graphite sealing device 3.
For the bearing seal supporting structure disclosed in the above embodiment, those skilled in the art can understand that the measuring joint 5 is disposed at one end of the measuring channel H facing away from the graphite sealing device 3, and the measuring channel H can be plugged, so as to avoid internal gas leakage, when measuring the temperature and pressure in the cavity of the graphite sealing device 3, a hole can be drilled in the measuring joint 5 and communicated with the measuring channel H, so as to lead out a measuring lead, and after the measurement is completed, the hole drilled in the measuring joint 5 can be plugged, or the measuring joint can be replaced again.
In some alternative embodiments, in the bearing seal support structure, a sealing ring is disposed between the measuring joint 5 and the measuring passage H to prevent the lubricant from leaking therefrom.
In some optional embodiments, the bearing seal support structure further includes:
and the distance sleeve 6 is sleeved on the rotating shaft 4 and is positioned between the bearing 2 and the graphite sealing device 3.
In some alternative embodiments, in the above bearing seal support structure, the outer wall of the rotating shaft 4 has a limiting protrusion;
the bearing seal support structure further includes:
and the limiting bolt 7 is screwed on the rotating shaft 4 and matched with the limiting protrusion to clamp the bearing 2 and the graphite sealing device 3 along the axial direction.
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 (10)
1. A bearing seal support structure, comprising:
the supporting seat (1) is provided with a mounting hole and an oil return hole (A);
a bearing (2) mounted in the mounting hole;
a graphite sealing device (3) installed in the installation hole; the oil return hole (A) is communicated with the space between the bearing (2) and the graphite sealing device (3);
the rotating shaft (4) is sleeved with the bearing (2) and the graphite sealing device (3), is provided with a bearing oil supply hole (B) and a graphite sealing device oil supply hole (C), and is internally provided with an oil supply channel (D); wherein the content of the first and second substances,
one end of the oil supply channel (D) extends to the outer surface of the rotating shaft (4);
the bearing oil supply hole (B) is communicated with the oil supply channel (D) and is communicated to the position of the bearing (2);
and the graphite sealing device oil supply hole (C) is communicated with the oil supply channel (D) and communicated to the position of the graphite sealing device (3).
2. The bearing seal support structure of claim 1,
the oil return holes (A) are distributed along the circumferential direction.
3. The bearing seal support structure of claim 1,
further comprising:
an arc-shaped oil collecting groove (E) extending along the circumferential direction is formed in the mounting hole; the arc-shaped oil collecting groove (E) is positioned at the bottom of a space between the bearing (2) and the graphite sealing device (3) and is communicated with the oil return hole (A).
4. The bearing seal support structure of claim 1,
the distance between the side walls of the two ends of the arc oil collecting groove (E) is gradually increased towards the direction of the bottom wall of the arc oil collecting groove.
5. The bearing seal support structure of claim 1,
an oil drainage hole (F) is formed in the supporting seat (1); the oil drainage hole (F) is communicated with the position where the graphite sealing device (3) is located.
6. The bearing seal support structure of claim 1,
the supporting seat (1) is provided with an air guide hole (G); the air guide hole (G) is communicated with the position where the graphite sealing device (3) is located.
7. The bearing seal support structure of claim 1,
the supporting seat (1) is provided with a measuring channel (H); the measuring channel (H) is communicated to the position where the graphite sealing device (3) is located, and the other end of the measuring channel is communicated to the outer surface of the supporting seat (1).
8. The bearing seal support structure of claim 1,
further comprising:
and the measuring joint (5) is arranged at one end of the measuring channel (H) back to the graphite sealing device (3).
9. The bearing seal support structure of claim 1,
further comprising:
and the distance sleeve (6) is sleeved on the rotating shaft (4) and is positioned between the bearing (2) and the graphite sealing device (3).
10. The bearing seal support structure of claim 1,
the outer wall of the rotating shaft (4) is provided with a limiting protrusion;
the bearing seal support structure further comprises:
and the limiting bolt (7) is in threaded connection with the rotating shaft (4) and is matched with the limiting protrusion to clamp the bearing (2) and the graphite sealing device (3) along the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110170152.6A CN112797078A (en) | 2021-02-05 | 2021-02-05 | Bearing seal supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110170152.6A CN112797078A (en) | 2021-02-05 | 2021-02-05 | Bearing seal supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112797078A true CN112797078A (en) | 2021-05-14 |
Family
ID=75814695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110170152.6A Pending CN112797078A (en) | 2021-02-05 | 2021-02-05 | Bearing seal supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112797078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777004A (en) * | 2022-04-18 | 2022-07-22 | 中国科学院工程热物理研究所 | Oil supply structure with shaft sleeve for oil supply bearing under two end rings |
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| CN114777004A (en) * | 2022-04-18 | 2022-07-22 | 中国科学院工程热物理研究所 | Oil supply structure with shaft sleeve for oil supply bearing under two end rings |
| CN114777004B (en) * | 2022-04-18 | 2023-07-18 | 中国科学院工程热物理研究所 | Oil supply structure with shaft sleeve for lower oil supply bearing of two end rings |
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Application publication date: 20210514 |