CN114704554B - Bearing mounting seat with self-lubricating oil injection function - Google Patents
Bearing mounting seat with self-lubricating oil injection function Download PDFInfo
- Publication number
- CN114704554B CN114704554B CN202210309253.1A CN202210309253A CN114704554B CN 114704554 B CN114704554 B CN 114704554B CN 202210309253 A CN202210309253 A CN 202210309253A CN 114704554 B CN114704554 B CN 114704554B
- Authority
- CN
- China
- Prior art keywords
- oil
- groove
- mounting seat
- bearing
- bearing mounting
- 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
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 16
- 238000002347 injection Methods 0.000 title claims abstract description 11
- 239000007924 injection Substances 0.000 title claims abstract description 11
- 239000003921 oil Substances 0.000 claims abstract description 104
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 2
- 238000005461 lubrication Methods 0.000 description 8
- 238000003801 milling Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004260 weight control Methods 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
- B23C3/34—Milling grooves of other forms, e.g. circumferential
-
- 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
- F16N—LUBRICATING
- F16N21/00—Conduits; Junctions; Fittings for lubrication apertures
- F16N21/04—Nozzles for connection of lubricating equipment to nipples
-
- 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
- F16N—LUBRICATING
- F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
- F16N31/02—Oil catchers; Oil wipers
-
- 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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention belongs to the technical field of aircraft engine accessory system design, and provides a bearing mounting seat with a lubricating oil injection function. The bearing mounting seat is in a ring shape; an oil groove is formed in the inner end surface of the bearing mounting seat along the axial direction; an oil inlet hole is formed in the outer end face of the bearing mounting seat along the radial direction and is communicated with the oil groove; the bearing mounting seat is provided with an annular through groove, and the annular through groove is communicated with the bottom of the oil groove. The bearing mounting seat is also provided with an oil return through groove along the axial direction, the oil return through groove is communicated with the annular through groove, the length of the oil return through groove is equal to the height of the bearing mounting seat, and the length of the oil groove is smaller than the height of the bearing mounting seat. The bearing pedestal is redesigned on the basis of the original aviation common bearing pedestal, so that the positioning requirement is provided for the installed bearing, the functions of lubricating oil supply and oil return for the installed bearing are simultaneously realized, the product structure of an aircraft engine accessory transmission system can be simplified to a certain extent according to specific use conditions, and the requirements of oil spray nozzles, oil spray nozzle fixed installation, sealing and the like in the past are reduced.
Description
Technical Field
The invention belongs to the technical field of aircraft engine accessory system design, and provides a bearing mounting seat with a lubricating oil injection function.
Background
The transmission system in the accessory transmission casing of the aeroengine is provided with a plurality of gears, and the integral accessory transmission system is driven to work after input by introducing an input shaft from the engine. According to the overall weight control requirement of the aeroengine, under the condition that strength allows, the accessory casing is made of magnesium aluminum alloy generally, each gear and each gear shaft are provided with two bearings so as to meet the rotation requirement of the gears or the gear shafts, the inner ring and the outer ring of the bearings are in interference fit or clearance fit, and the outer ring is in transition fit or interference fit. The inner ring and the bearing are made of steel materials, and the matching is free of problems. If the outer ring is directly mounted on the accessory shell, the outer ring is made of steel, and the outer ring is dragged to rotate together when the bearing rotates during working. The bearing mounting seat for processing steel at the bearing mounting position is generally contacted with the bearing outer ring, so that the problem of scratch can be solved, the processing is convenient, and the bearing can be well positioned.
The bearing mounting seat is used for positioning the bearing, guiding the lubricating oil into the oil way from the position of the casing nearby, mounting the oil nozzle and other devices, lubricating the bearing, and because of space constraint of the aeroengine, the mounting position of the oil nozzle is smaller and the shape is complex when the oil nozzle is mounted, and meanwhile, the mounting fixing and sealing requirements of the contact position of the oil nozzle and the oil way are required to be considered, and more parts are required to realize bearing lubrication.
Disclosure of Invention
The invention aims to: in order to optimize the situation, the invention designs the bearing mounting seat with the lubricating oil injection, which can effectively solve the problem of bearing lubrication.
The technical scheme of the invention is as follows:
the bearing mounting seat is in a circular ring shape;
an oil groove is formed in the inner end surface of the bearing mounting seat along the axial direction;
an oil inlet hole is formed in the outer end face of the bearing mounting seat along the radial direction and is communicated with the oil groove;
the bearing mounting seat is provided with an annular through groove, and the annular through groove is communicated with the bottom of the oil groove.
Further, the bearing mounting seat is also provided with an oil return through groove along the axial direction, and the oil return through groove is communicated with the annular through groove.
Further, the length of the oil return through groove is equal to the height of the bearing installation seat, and the length of the oil groove is smaller than the height of the bearing installation seat.
Further, the cross section of the oil groove is in a fan shape, the fan angle is 120-150 degrees, the diameter is 15-50 mm, and the depth is 1.5-3 mm.
Further, the number of the oil grooves and the oil inlet holes is the same and is one to three.
Further, the diameter of the oil inlet hole is in the range of 0.5 mm-2 mm.
Further, the cross-sectional area of the oil return through groove is 2-3 times of the cross-sectional area of the oil groove.
Further, the height of the annular oil groove is 0.8 mm-2 mm.
The beneficial effects of the invention are as follows:
1. the newly designed bearing mounting seat can lubricate the bearing;
2. the invention can adjust the corresponding size of the mounting seat according to the oil demand of the integral bearing so as to meet the requirement.
3. The newly designed bearing mounting seat can reduce the number of bearing lubrication parts of the aero-engine and simplify the structure of the whole engine lubrication system.
Drawings
FIG. 1 is a schematic view of a bearing mount according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of A-A side of a bearing mount according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an oil inlet and return example according to an embodiment of the present invention;
in the figure, 1-oil inlet holes, 2-oil grooves, 3-annular through grooves and 4-oil return through grooves; 5-bearing pedestal, 6-bearing, 7-gear shaft, 8-accessory case shell.
Detailed Description
This section is an embodiment of the present invention for explaining and explaining the technical solution of the present invention.
A bearing mounting seat with a self-lubricating oil injection function is newly designed, so that the bearing mounting seat can meet the bearing mounting and positioning requirements and can provide lubrication for a bearing.
The bearing mounting seat is shown in fig. 1 and 2, an oil inlet 1 is processed on the outer end surface of the bearing mounting seat and is communicated with the inner end surface of the bearing mounting seat, the size of the oil inlet is selected according to the lubrication calculation result and the pressure, the size of the oil inlet is selected to be phi 0.5mm through calculation, the oil supply quantity of bearing lubrication can be met, the oil demand is small in the scheme, and the oil inlet with phi 0.5mm can be met. If the oil demand in other designs is more than 3 times of the scheme, 2 oil inlet holes can be processed, the maximum quantity is not more than 3, the hole size can be adjusted between phi 0.5 and phi 2mm, and the requirements of other schemes can be met.
The cylindrical oil groove 2 is processed by the milling cutter at the inner end face of the oil inlet hole of the bearing mounting seat, the oil groove is controlled in size and depth in consideration of the oil supply amount and the overall strength, so that enough space is reserved after the bearing is mounted to enable the lubricating oil to enter the bearing retainer and the rolling body, the oil supply position is affected by the fan-shaped area and the processing depth, the margin of oil requirement is calculated, the diameter phi 15 (R7.5) mm of the milling cutter is selected according to the scheme, the fan-shaped angle is about 130 degrees, and the depth is about 1.5mm for the inner end face of the bearing mounting seat to face the outside processing, so that oil supply can be satisfied. If the oil quantity required by other schemes is large, the diameter of the milling cutter can be enlarged to be between phi 20 and phi 50mm, the fan-shaped angle of the processing part is increased to 150 degrees, and the depth can be properly increased to 3mm.
The annular oil groove 3 is processed at the bottom of the bearing seat mounting bearing, so that a gap is not formed between the annular oil groove 3 and the bottom surface of the bearing mounting seat when the bearing is conveniently mounted, auxiliary oil supply can be carried out on the bearing, and the discharge of redundant lubricating oil can be assisted, wherein the size of the annular oil groove in the scheme is phi 0.8mm, and the maximum adjustment can be carried out if the discharge amount is larger in other schemes, so that the maximum adjustment is not more than phi 2mm.
The milling cutter is used for processing the whole oil return through groove 4 opposite to the oil inlet hole and the oil groove, after the bearing is installed, the oil return condition and the required space are fully considered, the oil return through groove is at least 2 times of the area of the oil inlet groove under the general condition for oil return to meet the oil return requirement, 3 times of the oil return requirement can be achieved under the allowable condition, the milling cutter diameter phi 10 is selected through the scheme, the milling cutter is processed into the annular through groove with the angle of 30 degrees, the area is approximately 2.2 times of the area of the oil inlet groove, the oil return requirement is met through the processing conveniently, and the oil return requirement is larger if the oil return requirement of other schemes is met, and the design can be carried out according to 3 times.
The working principle of the present invention is explained below by means of fig. 3.
After oil is pressurized by an oil pump from an oil tank, the oil with pressure enters an oil supply pipeline inside an accessory case shell through an external oil circuit, enters an annular groove outside a hole for installing a bearing installation seat along the oil supply pipeline route inside the accessory case shell or directly reaches the outer diameter of the bearing installation seat, enters the bearing installation seat through an oil inlet hole 1 on the outer diameter of the bearing installation seat, and after the space of a cylindrical oil groove 2 and an outer ring of the bearing is filled instantly with the oil under pressure, the oil is sprayed into the positions of a rolling body and a retainer of the bearing through the gap between the cylindrical oil groove 2 and the outer ring of the bearing, the whole moving bearing is lubricated and cooled along with the rotation of the bearing, the lubricated oil mostly flows out by gravity, and the redundant oil flows out to the positions of an annular oil groove 3 at the bottom end of the bearing installation seat and the upper end face of the bearing to be discharged to the oil return groove 4 of the bearing installation seat, so that the oil inlet, the oil return and the lubrication of the bearing are completed.
Claims (6)
1. The bearing mounting seat with the lubricating oil injection function is characterized by being ring-shaped;
an oil groove is formed in the inner end surface of the bearing mounting seat along the axial direction;
an oil inlet hole is formed in the outer end face of the bearing mounting seat along the radial direction and is communicated with the oil groove;
the bearing mounting seat is provided with an annular through groove which is communicated with the bottom of the oil groove;
the bearing mounting seat is also provided with an oil return through groove along the axial direction, and the oil return through groove is communicated with the annular through groove;
the length of the oil return through groove is equal to the height of the bearing installation seat, and the length of the oil groove is smaller than the height of the bearing installation seat.
2. The bearing mounting seat with self-lubricating oil injection function according to claim 1, wherein the cross section of the oil groove is in a fan shape, the fan angle is 120-150 degrees, the diameter is 15-50 mm, and the depth is 1.5-3 mm.
3. The bearing mounting seat with self-lubricating oil injection according to claim 2, wherein the number of the oil grooves and the oil inlet holes is the same, and the number of the oil grooves and the oil inlet holes is one to three.
4. The bearing mounting seat with self-lubricating oil injection according to claim 1, wherein the diameter of the oil inlet hole is in the range of 0.5mm to 2mm.
5. The self-lubricating oil injected bearing mount of claim 1, wherein the cross-sectional area of the scavenge air through groove is 2-3 times the cross-sectional area of the oil groove.
6. The bearing mounting seat with self-lubricating oil injection according to claim 1, wherein the height of the annular oil groove is 0.8-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210309253.1A CN114704554B (en) | 2022-03-25 | 2022-03-25 | Bearing mounting seat with self-lubricating oil injection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210309253.1A CN114704554B (en) | 2022-03-25 | 2022-03-25 | Bearing mounting seat with self-lubricating oil injection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114704554A CN114704554A (en) | 2022-07-05 |
| CN114704554B true CN114704554B (en) | 2023-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210309253.1A Active CN114704554B (en) | 2022-03-25 | 2022-03-25 | Bearing mounting seat with self-lubricating oil injection function |
Country Status (1)
| Country | Link |
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Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA432460A (en) * | 1946-01-08 | Clare Sprankling Le Clair Camille | Shaft or spindle lubrication system | |
| GB864061A (en) * | 1958-08-29 | 1961-03-29 | Timken Roller Bearing Co | Improvements relating to axle-boxes and other bearing housings |
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| CN207049198U (en) * | 2017-06-02 | 2018-02-27 | 吴国呈 | Bearing holder (housing, cover) with oil storage cooling protection |
| CN209324879U (en) * | 2018-12-31 | 2019-08-30 | 兰州兰泵有限公司 | A kind of bearing lubricating oil circuit |
| CN210189449U (en) * | 2019-07-11 | 2020-03-27 | 安阳工学院 | Horizontal permanent magnet synchronous dynamic and static piezoelectric main shaft |
| CN210732135U (en) * | 2019-08-20 | 2020-06-12 | 安阳莱工科技有限公司 | Pressure measurement double-grinding-wheel permanent magnet synchronous dynamic and static piezoelectric main shaft |
| CN210799760U (en) * | 2019-08-13 | 2020-06-19 | 江苏丰尚智能科技有限公司 | Bearing seat lubricating and sealing mechanism and single-screw extrusion puffing machine |
| CN213540823U (en) * | 2020-11-04 | 2021-06-25 | 吉林省中暖节能科技有限公司 | Sealing device of turbine shaft |
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| CA432460A (en) * | 1946-01-08 | Clare Sprankling Le Clair Camille | Shaft or spindle lubrication system | |
| GB864061A (en) * | 1958-08-29 | 1961-03-29 | Timken Roller Bearing Co | Improvements relating to axle-boxes and other bearing housings |
| DE6942822U (en) * | 1969-07-31 | 1971-08-05 | Bbc Brown Boveri & Cie | DEVICE FOR MANUFACTURING UNDERCUT CIRCULAR GROOVES. |
| IT1006463B (en) * | 1973-04-16 | 1976-09-30 | Miller G | PROVISION TO LIMIT OIL LOSSES IN BEARINGS OF SWITCHING OFF TRACTION MOTORS |
| CA1020435A (en) * | 1974-02-14 | 1977-11-08 | Barry D. Selfe | Routing apparatus |
| GB1556760A (en) * | 1975-11-20 | 1979-11-28 | Kuehnle M R | Method and apparatus for making helical bearing races |
| CA1253441A (en) * | 1986-09-23 | 1989-05-02 | Gerald Narbut | Bearing lubrication for spindles in vehicles |
| JP2005273715A (en) * | 2004-03-23 | 2005-10-06 | Mitsubishi Fuso Truck & Bus Corp | Bearing device for engine |
| CN101053874A (en) * | 2007-05-23 | 2007-10-17 | 福达合金材料股份有限公司 | Method for preparing double side mosaic type hot-rolling composite silver copper strip |
| CN101314186A (en) * | 2007-05-29 | 2008-12-03 | 上海电气集团上海电机厂有限公司 | Method for processing 8 shaped oil groove with numerical control boring mill |
| CN101070879A (en) * | 2007-06-15 | 2007-11-14 | 辽宁科技大学 | Static-pressure supporting spherical self-aligning bearing seat |
| CN101618467A (en) * | 2009-07-21 | 2010-01-06 | 康脉精机科技（嘉兴）有限公司 | Processing machine |
| CN102808856A (en) * | 2011-09-15 | 2012-12-05 | 王福贵 | Novel gearbox type bearing box and manufacturing method thereof |
| CN102352951A (en) * | 2011-10-19 | 2012-02-15 | 重庆建设·雅马哈摩托车有限公司 | Lubricating grease uniform coating system and method of oil seal lip mouth |
| CN103161830A (en) * | 2013-04-07 | 2013-06-19 | 四川皇龙智能破碎技术股份有限公司 | High-temperature-resistance bearing base |
| CN103195819A (en) * | 2013-04-26 | 2013-07-10 | 如皋市非标轴承有限公司 | Large-scale high-rotation-speed oil filling bearing |
| CN103423315A (en) * | 2013-08-12 | 2013-12-04 | 苏州市合昌电器有限公司 | Bearing pedestal |
| CN203770601U (en) * | 2014-03-12 | 2014-08-13 | 贵州航空发动机研究所 | Transmission lubrication device |
| CN104493647A (en) * | 2014-12-25 | 2015-04-08 | 安徽嘉龙锋钢刀具有限公司 | Special-purpose grinding machine for cutting tool edge and use method of special-purpose grinding machine |
| CN104848020A (en) * | 2015-05-18 | 2015-08-19 | 江苏一机机械科技有限公司 | Guide post for hydraulic press |
| CN105927839A (en) * | 2016-07-12 | 2016-09-07 | 合肥新沪屏蔽泵有限公司 | Special bearing oiler for shielding pump |
| CN207049198U (en) * | 2017-06-02 | 2018-02-27 | 吴国呈 | Bearing holder (housing, cover) with oil storage cooling protection |
| CN209324879U (en) * | 2018-12-31 | 2019-08-30 | 兰州兰泵有限公司 | A kind of bearing lubricating oil circuit |
| CN210189449U (en) * | 2019-07-11 | 2020-03-27 | 安阳工学院 | Horizontal permanent magnet synchronous dynamic and static piezoelectric main shaft |
| CN210799760U (en) * | 2019-08-13 | 2020-06-19 | 江苏丰尚智能科技有限公司 | Bearing seat lubricating and sealing mechanism and single-screw extrusion puffing machine |
| CN210732135U (en) * | 2019-08-20 | 2020-06-12 | 安阳莱工科技有限公司 | Pressure measurement double-grinding-wheel permanent magnet synchronous dynamic and static piezoelectric main shaft |
| CN213540823U (en) * | 2020-11-04 | 2021-06-25 | 吉林省中暖节能科技有限公司 | Sealing device of turbine shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114704554A (en) | 2022-07-05 |
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