CN112081831A - Bearing cooling structure - Google Patents
Bearing cooling structure Download PDFInfo
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- CN112081831A CN112081831A CN202010969861.6A CN202010969861A CN112081831A CN 112081831 A CN112081831 A CN 112081831A CN 202010969861 A CN202010969861 A CN 202010969861A CN 112081831 A CN112081831 A CN 112081831A
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- journal
- annular
- cooling structure
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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
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
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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
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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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
- 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
- F16C33/667—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to conditioning, e.g. cooling, filtering
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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
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The application belongs to the technical field of bearing cooling design, concretely relates to bearing cooling structure, include: the inner wall of the journal is provided with an annular journal oil collecting groove, and the outer wall of the journal is provided with a plurality of journal oil throwing holes distributed along the circumferential direction; each journal oil throwing hole is communicated with the annular journal oil collecting tank; the outer ring of the bearing is sleeved on the shaft diameter; a plurality of bearing oil inlet holes are formed in the outer ring; each bearing oil inlet is correspondingly communicated with one journal oil throwing hole; and the bearing cooling oil nozzle is arranged in the journal to spray lubricating oil into the annular journal oil collecting groove.
Description
Technical Field
The application belongs to the technical field of bearing cooling design, and particularly relates to a bearing cooling structure.
Background
The bearing is arranged on the shaft diameter, and in the working process, the components rotate at high speed, the temperature is increased sharply, and the bearing needs to be cooled during working in order to protect the bearing from being damaged.
At present, the temperature of bearing is reduced to the mode of spraying lubricating oil through setting up the fuel sprayer at bearing both ends mostly, and this kind of technical scheme has following defect:
1) in some cases, the two ends of the bearing are provided with convex structures, and oil nozzles are difficult to arrange at the two ends of the bearing;
2) the lubricating oil sprayed to the bearing is difficult to recover and easy to leak, thereby causing pollution;
3) lubricating oil sprayed to the bearing is easy to splash, is difficult to be directly sprayed between the inner ring and the outer ring of the bearing, has low cooling efficiency and is serious in waste;
4) for the cooling quality of assurance to the bearing, the fuel sprayer that sets up bearing both ends usually has a plurality ofly, distributes along circumference, corresponds with it and need arrange many oil supply pipe ways and supply oil to each fuel sprayer, causes the structure complicacy, is difficult to arrange.
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
It is an object of the present application to provide a bearing cooling arrangement to overcome or mitigate at least one of the technical disadvantages of the known prior art.
The technical scheme of the application is as follows:
a bearing cooling structure comprising:
the inner wall of the journal is provided with an annular journal oil collecting groove, and the outer wall of the journal is provided with a plurality of journal oil throwing holes distributed along the circumferential direction; each journal oil throwing hole is communicated with the annular journal oil collecting tank;
the outer ring of the bearing is sleeved on the shaft diameter; a plurality of bearing oil inlet holes are formed in the outer ring; each bearing oil inlet is correspondingly communicated with one journal oil throwing hole;
and the bearing cooling oil nozzle is arranged in the journal to spray lubricating oil into the annular journal oil collecting groove.
According to at least one embodiment of the present application, in the above-described bearing cooling structure, the bearing cooling oil jet is inclined away from the rotation direction of the journal.
According to at least one embodiment of the present application, the above bearing cooling structure further includes:
the bearing seat is sleeved on the outer ring of the bearing;
the edge of the bearing baffle is connected with the bearing seat, and an oil supply hole and an oil return hole are formed in the bearing baffle; the oil supply hole is communicated with the bearing cooling oil nozzle.
According to at least one embodiment of the present application, the above bearing cooling structure further includes:
and one end of the oil supply pipe is communicated with the oil supply hole, and the other end of the oil supply pipe is communicated with a lubricating oil source.
According to at least one embodiment of the present application, the above bearing cooling structure further includes:
and one end of the oil return pipe is communicated with the oil return hole.
According to at least one embodiment of the present application, the above bearing cooling structure further includes:
the shaft neck baffle is arranged in the shaft neck, and the edge of the shaft neck baffle is connected with the inner wall of the shaft neck; the bearing cooling oil nozzle is positioned between the journal baffle and the bearing baffle.
According to at least one embodiment of the present application, in the above-mentioned bearing cooling structure, a side of the journal baffle facing the bearing baffle has an annular connecting edge; the annular connecting edge is attached to the inner wall of the shaft neck and covers the annular shaft neck oil collecting groove; the inner wall of the annular connecting edge is provided with an annular connecting edge oil collecting groove, and the outer wall of the annular connecting edge is provided with a plurality of connecting edge oil throwing holes distributed along the circumferential direction; each connecting edge oil throwing hole is communicated with the annular connecting edge oil collecting tank and the annular journal oil collecting tank;
the bearing cooling oil nozzle can spray lubricating oil into the oil collecting groove of the annular connecting edge.
According to at least one embodiment of the present application, in the above bearing cooling structure, an annular sealing groove is formed between the journal baffle and the inner wall of the journal;
the bearing cooling structure further includes:
and the sealing ring is arranged in the annular sealing groove.
According to at least one embodiment of the present application, in the above-described bearing cooling structure, the journal inner wall has an outer annular oil sump, and the outer wall has a plurality of outer oil slingers distributed in the circumferential direction; each outer oil throwing hole is communicated with the outer annular oil collecting groove;
the annular connecting edge covers the outer annular oil collecting groove, the inner wall of the annular connecting edge is provided with an inner annular oil collecting groove, and the outer wall of the annular connecting edge is provided with a plurality of inner oil throwing holes distributed along the circumferential direction; each inner oil throwing hole is communicated with the outer annular oil collecting groove and the inner annular oil collecting groove;
the bearing cooling structure further includes:
one end of the oil injection pipe is communicated with the oil supply hole; the bearing cooling oil nozzle is arranged on the oil spraying pipe;
the graphite runway cooling oil spray nozzle is arranged on the oil spray pipe and can spray lubricating oil to the outer annular oil collecting groove;
the bearing sealing seat is sleeved on the shaft neck and is connected with the bearing seat; the bearing is positioned between the bearing sealing seat and the bearing baffle;
the graphite sealing device is arranged between the bearing sealing seat and the shaft neck; each outer oil slinger hole is positioned between the graphite sealing device and the bearing.
According to at least one embodiment of the present application, in the above bearing cooling structure, the graphite runway cooling oil nozzle is inclined away from the rotation direction of the journal.
According to at least one embodiment of the present application, the above bearing cooling structure further includes:
and the sealing ring is sleeved on the journal, one end of the sealing ring is connected with the bearing sealing seat, and the inner wall of the other end of the sealing ring is in fit connection with the honeycomb comb teeth on the outer wall of the journal.
Drawings
FIG. 1 is a schematic view of a bearing cooling structure provided by an embodiment of the present application;
FIG. 2 is a partial schematic view of a bearing cooling structure provided by an embodiment of the present application;
FIG. 3 is a partial cross-sectional view of a bearing cooling structure provided by an embodiment of the present application;
wherein:
1-a journal; 2-a bearing; 3-cooling the oil nozzle by the bearing; 4-bearing seats; 5-bearing baffle; 6-oil supply pipe; 7-an oil return pipe; 8-journal baffles; 9-annular connecting edges; 10-a sealing ring; 11-an oil spray pipe; 12-a graphite runway cooling oil nozzle; 13-bearing sealing seat; 14-a graphite sealing device; 15-sealing ring.
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 use of the terms "comprising" or "including" and the like in the description of the present application is intended to indicate that the element or item preceding the term covers the element or item listed after the term and its equivalents, without excluding 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 cooling structure comprising:
the inner wall of the journal 1 is provided with an annular journal oil collecting groove, and the outer wall of the journal 1 is provided with a plurality of journal oil throwing holes distributed along the circumferential direction; each journal oil throwing hole is communicated with the annular journal oil collecting tank;
the bearing 2 is sleeved on the shaft diameter 1; a plurality of bearing oil inlet holes are formed in the outer ring; each bearing oil inlet is correspondingly communicated with one journal oil throwing hole;
a bearing cooling oil jet 3 is provided in the journal 1 to be able to spray oil into the annular journal sump.
For the bearing cooling structure disclosed in the above embodiment, those skilled in the art can understand that lubricating oil is sprayed from the bearing cooling oil nozzle 3 into the annular journal oil collecting tank, and under the action of the rotation centrifugal force of the journal 1, the lubricating oil can enter between the outer ring and the inner ring of the bearing 2 through each journal oil throwing hole and bearing oil inlet hole, so as to realize efficient cooling of the bearing and lubricate the bearing 2.
For the bearing cooling structure disclosed in the above embodiment, it can be understood by those skilled in the art that, in order to make the lubricating oil sprayed from the bearing cooling oil nozzle 3 easily spray into the annular journal oil collecting tank, the annular journal oil collecting tank may be designed to have a larger width, and meanwhile, in order to make the lubricating oil in the annular journal oil collecting tank enter between the outer ring and the inner ring of the bearing 2 through each journal oil throwing hole and the bearing oil inlet hole under the action of the rotation centrifugal force of the journal 1, the inner wall of the annular journal oil collecting tank may be set to recess around each journal oil throwing hole.
For the bearing cooling structure disclosed in the above embodiment, it can be further understood by those skilled in the art that the journal 1 has a relatively large space therein, and the bearing cooling oil nozzle 3 is disposed therein, so that interference with other components is not easy to occur, and the installation is convenient.
With respect to the bearing cooling structure disclosed in the above embodiments, it will be understood by those skilled in the art that, on the premise of having a large space in the journal 1, the outlet of the bearing cooling oil jet 3 may be arranged at a distance from the annular journal oil sump so as to influence the lubricating oil jetted from the bearing cooling oil jet 3 on the rotor member.
In some alternative embodiments, in the above-mentioned bearing cooling structure, the bearing cooling oil nozzle 3 is inclined away from the rotation direction of the journal 1, so that the direction of the lubricating oil sprayed from the bearing cooling oil nozzle 3 entering the annular journal oil collecting groove is consistent with the rotation direction of the journal 1, and the influence on the rotor component is reduced, and the size of the inclination angle β is determined by a person skilled in the relevant art based on calculation or experiment when applying the technical solution disclosed in this application.
In some optional embodiments, the above bearing cooling structure further includes:
the bearing block 4 is sleeved on the outer ring of the bearing 2;
the edge of the bearing baffle plate 5 is connected with the bearing seat 4, and an oil supply hole and an oil return hole are formed in the bearing baffle plate; the oil supply hole communicates with the bearing-cooling oil jet 3 to be able to supply the lubricating oil to the bearing-cooling oil jet 3.
For the bearing cooling structure disclosed in the above embodiment, it can be further understood by those skilled in the art that the edge of the baffle plate of the bearing 5 is connected to the bearing seat 4, so as to seal the journal 1, prevent the lubricating oil sprayed by the bearing cooling oil nozzle 3 from splashing out of the bearing cooling oil nozzle, accumulate the lubricating oil, and enable the accumulated lubricating oil to flow out of the oil return hole for recycling.
In some optional embodiments, the above bearing cooling structure further includes:
and an oil supply pipe 6 having one end communicating with the oil supply hole and the other end communicating with a lubricant source.
In some optional embodiments, the above bearing cooling structure further includes:
and one end of the oil return pipe 7 is communicated with the oil return hole so as to recover and recycle the accumulated lubricating oil.
In some optional embodiments, the above bearing cooling structure further includes:
a journal baffle 8 arranged in the journal 1, the edge of which is connected with the inner wall of the journal 1; the bearing cooling oil nozzle 3 is positioned between the journal baffle 8 and the bearing baffle 5 to prevent lubricating oil injected by the bearing cooling oil nozzle 3 from splashing to the inside of the journal, and the lubricating oil is accumulated between the journal baffle 8 and the bearing baffle 5.
In some alternative embodiments, in the above-mentioned bearing cooling structure, the side of the journal baffle 8 facing the bearing baffle 5 has an annular connecting edge 9; the annular connecting edge 9 is attached to the inner wall of the journal 1 and covers the annular journal oil collecting groove; the inner wall of the annular connecting edge 9 is provided with an annular connecting edge oil collecting groove, and the outer wall of the annular connecting edge 9 is provided with a plurality of connecting edge oil throwing holes distributed along the circumferential direction; each connecting edge oil throwing hole is communicated with the annular connecting edge oil collecting tank and the annular journal oil collecting tank;
the bearing cooling oil nozzle 3 can spray lubricating oil into the annular connecting edge oil collecting groove, the lubricating oil entering the annular connecting edge oil collecting groove can get into the annular journal oil collecting groove through each connecting edge oil throwing hole under the action of the rotating centrifugal force of the journal 1, and then can get into the space between the outer ring and the inner ring of the bearing 2 through each journal oil throwing hole and the bearing oil inlet hole, so that the bearing is efficiently cooled, and the bearing 2 is lubricated.
For the bearing cooling structure disclosed in the above embodiment, it can be understood by those skilled in the art that, in order to make the lubricating oil sprayed from the bearing cooling oil nozzle 3 easily spray into the annular connecting edge oil collecting groove, the annular connecting edge oil collecting groove can be designed to have a larger width, and meanwhile, in order to make the lubricating oil in the annular connecting edge oil collecting groove enter the annular journal oil collecting groove through each connecting edge oil throwing hole easily under the action of the rotation centrifugal force of the journal 1, the inner wall of the annular connecting edge oil collecting groove can be set to surround each connecting edge oil throwing hole and be recessed.
In some alternative embodiments, in the above bearing cooling structure, an annular sealing groove is formed between the journal baffle 8 and the inner wall of the journal 1;
the bearing cooling structure further includes:
the seal ring 10 is provided in an annular seal groove to prevent leakage of oil therefrom.
In some alternative embodiments, in the above bearing cooling structure, the journal inner wall has an outer annular oil sump, and the outer wall has a plurality of circumferentially distributed outer oil slingers; each outer oil throwing hole is communicated with the outer annular oil collecting groove;
the annular connecting edge 9 covers the outer annular oil collecting groove, the inner wall of the annular connecting edge is provided with an inner annular oil collecting groove, and the outer wall of the annular connecting edge is provided with a plurality of inner oil throwing holes distributed along the circumferential direction; each inner oil throwing hole is communicated with the outer annular oil collecting groove and the inner annular oil collecting groove;
the bearing cooling structure further includes:
one end of the oil injection pipe 11 is communicated with the oil supply hole; the bearing cooling oil nozzle 3 is arranged on the oil spraying pipe 11;
the graphite runway cooling oil nozzle 12 is arranged on the oil injection pipe 11 and can inject lubricating oil into the outer annular oil collecting groove;
the bearing sealing seat 13 is sleeved on the journal 1 and is connected with the bearing seat 4; the bearing 2 is positioned between the bearing sealing seat 13 and the bearing baffle 5;
a graphite sealing device 14 arranged between the bearing sealing seat 13 and the shaft neck 1; each outer oil slinger hole is positioned between the graphite sealing device 14 and the bearing 2.
For the bearing cooling structure disclosed in the above embodiment, it can be understood by those skilled in the art that the graphite sealing device 14 includes structures such as a graphite sealing runway and sealing graphite, and the specific structural form and installation manner thereof can be selected by those skilled in the art according to the specific practice when applying the technical solution disclosed in the application itself.
For the bearing cooling structure disclosed in the above embodiment, it can be further understood by those skilled in the art that the design of the relevant structures such as the graphite runway cooling oil nozzle 12, the inner annular oil collecting tank, the inner oil slinger hole, the outer annular oil collecting tank, and the outer oil slinger hole is to cool the graphite sealing runway in the graphite sealing device 14, and the function of each structure can be understood with reference to the function of the bearing cooling oil nozzle 3, the annular connecting edge oil collecting tank, the connecting edge oil slinger hole, the annular journal oil collecting tank, and the journal oil slinger hole, and will not be described in further detail herein.
In some optional embodiments, in the above-described bearing cooling structure, the graphite runway cooling oil injector 12 is inclined away from the rotation direction of the journal 1, so that the direction of the lubricating oil sprayed from the graphite runway cooling oil injector 12 entering the inner annular oil collecting groove is consistent with the rotation direction of the journal 1, and the influence on the rotor component is reduced, and the size of the inclination angle is determined by a person skilled in the relevant art based on calculation or experiment when applying the technical solution disclosed in the present application.
In some optional embodiments, the above bearing cooling structure further includes:
and the sealing ring 15 is sleeved on the journal 1, one end of the sealing ring is connected with the bearing sealing seat 13, and the inner wall of the other end of the sealing ring is in fit connection with the honeycomb grid on the outer wall of the journal 1.
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 cooling structure, comprising:
the inner wall of the journal (1) is provided with an annular journal oil collecting groove, and the outer wall of the journal is provided with a plurality of journal oil throwing holes distributed along the circumferential direction; each journal oil throwing hole is communicated with the annular journal oil collecting tank;
the bearing (2) is sleeved on the shaft diameter (1); the outer ring is provided with a plurality of bearing oil inlet holes; each bearing oil inlet is correspondingly communicated with one journal oil throwing hole;
a bearing cooling oil spray nozzle (3) is arranged in the journal (1) so as to spray lubricating oil into the annular journal oil collecting groove.
2. The bearing cooling structure according to claim 1,
the bearing cooling oil nozzle (3) is inclined in a direction opposite to the rotation direction of the journal (1).
3. The bearing cooling structure according to claim 1,
further comprising:
the bearing seat (4) is sleeved on the outer ring of the bearing (2);
the edge of the bearing baffle plate (5) is connected with the bearing seat (4), and an oil supply hole and an oil return hole are formed in the bearing baffle plate; the oil supply hole is communicated with the bearing cooling oil nozzle (3).
4. The bearing cooling structure according to claim 3,
further comprising:
and an oil supply pipe (6) having one end communicating with the oil supply hole and the other end communicating with a lubricating oil source.
5. The bearing cooling structure according to claim 3,
further comprising:
and one end of the oil return pipe (7) is communicated with the oil return hole.
6. The bearing cooling structure according to claim 3,
further comprising:
a journal baffle (8) arranged in the journal (1), the edge of the journal baffle is connected with the inner wall of the journal (1); the bearing cooling oil nozzle (3) is positioned between the journal baffle (8) and the bearing baffle (5).
7. The bearing cooling structure according to claim 6,
the side of the journal baffle (8) facing the bearing baffle (5) is provided with an annular connecting edge (9); the annular connecting edge (9) is attached to the inner wall of the journal (1) and covers the annular journal oil collecting groove; the inner wall of the annular connecting edge (9) is provided with an annular connecting edge oil collecting groove, and the outer wall of the annular connecting edge (9) is provided with a plurality of connecting edge oil throwing holes distributed along the circumferential direction; each connecting edge oil throwing hole is communicated with the annular connecting edge oil collecting tank and the annular journal oil collecting tank;
and the bearing cooling oil nozzle (3) can spray lubricating oil into the oil collecting groove of the annular connecting edge.
8. The bearing cooling structure according to claim 7,
an annular sealing groove is formed between the journal baffle (8) and the inner wall of the journal (1);
the bearing cooling structure further includes:
and a seal ring (10) disposed in the annular seal groove.
9. The bearing cooling structure according to claim 7,
the inner wall of the journal is provided with an outer annular oil collecting groove, and the outer wall of the journal is provided with a plurality of outer oil slinger holes distributed along the circumferential direction; each outer oil throwing hole is communicated with the outer annular oil collecting groove;
the annular connecting edge (9) covers the outer annular oil collecting groove, the inner wall of the annular connecting edge is provided with an inner annular oil collecting groove, and the outer wall of the annular connecting edge is provided with a plurality of inner oil throwing holes distributed along the circumferential direction; each inner oil throwing hole is communicated with the outer annular oil collecting groove and the inner annular oil collecting groove;
the bearing cooling structure further includes:
one end of the oil injection pipe (11) is communicated with the oil supply hole; the bearing cooling oil nozzle (3) is arranged on the oil injection pipe (11);
the graphite runway cooling oil spray nozzle (12) is arranged on the oil spray pipe (11) and can spray lubricating oil into the outer annular oil collecting groove;
the bearing sealing seat (13) is sleeved on the journal (1) and is connected with the bearing seat (4); the bearing (2) is positioned between the bearing sealing seat (13) and the bearing baffle plate (5);
the graphite sealing device (14) is arranged between the bearing sealing seat (13) and the journal (1); each outer oil slinger hole is positioned between the graphite sealing device (14) and the bearing (2).
10. The bearing cooling structure according to claim 7,
the graphite runway cooling oil nozzle (12) inclines away from the rotation direction of the shaft neck (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969861.6A CN112081831A (en) | 2020-09-15 | 2020-09-15 | Bearing cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969861.6A CN112081831A (en) | 2020-09-15 | 2020-09-15 | Bearing cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112081831A true CN112081831A (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010969861.6A Pending CN112081831A (en) | 2020-09-15 | 2020-09-15 | Bearing cooling structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797078A (en) * | 2021-02-05 | 2021-05-14 | 中国航发沈阳发动机研究所 | Bearing seal supporting structure |
| CN113236677A (en) * | 2021-05-28 | 2021-08-10 | 重庆水泵厂有限责任公司 | Bearing cooling and lubricating system and method |
| CN113790216A (en) * | 2021-09-22 | 2021-12-14 | 中国航发沈阳发动机研究所 | Rotating shaft double-bearing supporting structure |
| CN113803374A (en) * | 2021-09-22 | 2021-12-17 | 中国航发沈阳发动机研究所 | Rotating shaft supporting structure |
| CN113969807A (en) * | 2021-10-13 | 2022-01-25 | 中国航发沈阳发动机研究所 | Oil distribution sleeve structure capable of balancing rotor in complete machine state |
| CN116658304A (en) * | 2023-08-01 | 2023-08-29 | 成都中科翼能科技有限公司 | Bearing casing assembly of gas turbine shaft |
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| CN113790216A (en) * | 2021-09-22 | 2021-12-14 | 中国航发沈阳发动机研究所 | Rotating shaft double-bearing supporting structure |
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| CN113969807B (en) * | 2021-10-13 | 2024-07-05 | 中国航发沈阳发动机研究所 | Oil distributing sleeve structure capable of balancing rotor in complete machine state |
| CN116658304A (en) * | 2023-08-01 | 2023-08-29 | 成都中科翼能科技有限公司 | Bearing casing assembly of gas turbine shaft |
| CN116658304B (en) * | 2023-08-01 | 2023-10-20 | 成都中科翼能科技有限公司 | Bearing casing assembly of gas turbine shaft |
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