CN201588879U - Thrust bearing for a pressurizing device - Google Patents
Thrust bearing for a pressurizing device Download PDFInfo
- Publication number
- CN201588879U CN201588879U CN2010201056228U CN201020105622U CN201588879U CN 201588879 U CN201588879 U CN 201588879U CN 2010201056228 U CN2010201056228 U CN 2010201056228U CN 201020105622 U CN201020105622 U CN 201020105622U CN 201588879 U CN201588879 U CN 201588879U
- Authority
- CN
- China
- Prior art keywords
- oil
- thrust bearing
- thrust
- oil clearance
- central axis
- 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.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/047—Sliding-contact bearings for exclusively rotary movement for axial load only with fixed wedges to generate hydrodynamic pressure
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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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1075—Wedges, e.g. ramps or lobes, for generating pressure
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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
- F16C2360/00—Engines or pumps
- F16C2360/23—Gas turbine engines
- F16C2360/24—Turbochargers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model relates to a thrust bearing for a pressurizing device in simple structure capable of effectively reduce the wear. The thrust bearing is sleeved in a rotor of the pressurizing device by a central axle hole and thrust slices are arranged at the two sides; a plurality of oil holes are arranged on one side surface of the thrust bearing and radially perforate through the inner wall of the thrust bearing to the inner ring of the central axle hole; a plurality of oil grooves suitable for being covered by the thrust slices are distributed on at least one side surface of the thrust bearing along the central axle hole and the edge of the thrust bearing is provided with an oil return gap. The oil grooves are uniformly distributed along the radial direction of the central axle hole and an oil clearance inclined plane is arranged on a sector between the oil grooves. The oil clearance angle of the oil clearance inclined plane is 0.3-0.6degree and the depth of the oil groove is 0.4-0.9mm. The thrust bearing uses a new oil inlet structure and the oil clearance distance to increase the oil film reverse thrust to be suitable for the serious use condition of the pressurizing device and the life service is prolonged to above one year.
Description
Technical field
The utility model relates to the auxiliary component of the turbosupercharger that a kind of internal-combustion engine uses, and is specifically related to thrust bearing used for booster.
Background technique
The pressurized machine product is used widely in boosting internal combustion engine.Because of its special high-speed and high-temperature service condition, its rate of fault is high, as Honeywell company six months production assurance phases (seeing appendix); Other only three months homemade pressurized machine warrantys.The user only will change 2-4 in 1 year spreadable life.Both influence the normal operation of boosting internal combustion engine, improved user cost again, thereby greatly limited promoting the use of of pressurized machine.20% the product quick-wearing of crossing because of thrust bearing is arranged according to statistics approximately, cause impeller to wipe the generation of shell, oil leakage fault.
The model utility content
Technical problem to be solved in the utility model provide a kind of simple in structure, can effectively slow down the thrust bearing used for booster of wearing and tearing.
For solving the problems of the technologies described above, the utility model provides a kind of thrust bearing used for booster, and it is located on the rotor of pressurized machine by the central axis borehole jack, and the both sides of thrust bearing are provided with thrust plate; Be characterized in: a side of thrust bearing is provided with a plurality of oilholes, and this oilhole radially is through to the inner ring of described central axis hole through the inwall of thrust bearing; Have on the side of thrust bearing, along described central axis pore size distribution to be suitable for by the whole a plurality of oil grooves that cover of described thrust plate, the edge of thrust bearing is provided with the oil return breach.
Further, described oil groove radially evenly distributes along described central axis hole, and the covering of the fan between two oil grooves is provided with oil clearance bevel.
Further, the high and low point of each oil clearance bevel is same hour hands (that is: be all clockwise or be all counterclockwise) distribution.
Further, the oil clearance angle of described oil clearance bevel is the 0.3-0.6 degree.
Further, the degree of depth of described oil groove is 0.4-0.9mm.
The utlity model has positive effect: (1) thrust bearing used for booster of the present utility model adopts a plurality of oil inlet hole structures, blocks oil inlet hole to prevent dirtier lubricant oil; Oil clearance is apart from 0.02-0.04mm, and promptly the oil clearance angle is the 0.3-0.6 degree, makes the reaction thrust of the oil film between thrust plate and the thrust bearing can reach maximum value; The oil groove degree of depth is more shallow, can improve the charge oil pressure of bearing; (2) thrust bearing and thrust plate between fitting surface on non-notch, can guarantee that holding of thrust bearing pushes away area, thus can further reduce wearing and tearing; (3) this thrust bearing adopts new oil-feed structure and oil clearance distance, and to increase the harsh service condition that oil film reaction thrust adapts to pressurized machine, the life-span can extend to more than 1 year.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the front schematic view of the thrust bearing used for booster among the embodiment;
Fig. 2 is the A-A sectional structure chart of the thrust bearing used for booster among Fig. 1;
Fig. 3 is the B-B sectional structure chart of the thrust bearing used for booster among Fig. 1;
Fig. 4 is the partial enlarged drawing of the oil clearance bevel of the thrust bearing used for booster among Fig. 3;
Fig. 5 is the oil film reaction thrust among the embodiment and the graph of a relation of thrust bearing oil clearance distance.
Embodiment
See Fig. 1-3, the thrust bearing used for booster 1 of present embodiment is sheathed on the rotor of pressurized machine by central axis hole 3, and its both sides are provided with thrust plate; A side of thrust bearing 1 is provided with 3 oilholes 2, and this oilhole 2 radially is through to the inner ring of described central axis hole 3 through the inwall of thrust bearing 1; Be distributed with on each side of thrust bearing 1, along described central axis hole 3 and be suitable for by whole 5 oil grooves 4 that cover of the described thrust plate of respective side, the edge of thrust bearing 1 is provided with oil return breach 5.
Described oil groove 4 radially evenly distributes along described central axis hole 3, and the covering of the fan between two oil grooves 4 is provided with oil clearance bevel 6; During work, 0.4MPa extreme pressure lubricant flow into the inner ring of described central axis hole 3 through each oilhole 2, enter each oil groove 4 then, between thrust plate and thrust bearing 1, form the pressure-bearing oil film by oil clearance bevel 6 then, directly contact with thrust bearing 1 and wear and tear to prevent thrust plate.Oil in the oil film refluxes by oil return breach 5, thereby constitutes circulation.
The high and low point of each oil clearance bevel 6 is with hour hands and distributes.
The oil clearance angle of described oil clearance bevel 6 is the 0.3-0.6 degree.
The degree of depth of described oil groove 4 is 0.4-0.9mm.Described oil groove 4 and oil clearance bevel 6 are symmetrically distributed on two sides of thrust bearing 1.
The pressurized machine Axial Thrust Calculation:
The thrust of supercharger rotor is from the pressure difference of turbine and pinch roller.When pressurized machine during in the slow-speed of revolution, the turbine counterpressure surpasses the pinch roller back of the body, and its thrust direction is towards turbine, especially when pressurized machine is made whole machine balancing, reaches maximum value towards the thrust of turbine, and after supercharger speed was above 50%, end thrust was towards pinch roller.As calculated and actual measurement, its maximum axial thrust reaches 20N, and this moment, bearing pressure-bearing surface upward pressure intensity was:
When bearing rotor thrust plate positive pressure, can produce reaction thrust with the thrust shaft of film lubrication.When the reaction thrust on the oil film during less than positive pressure, thrust plate can direct contact bearing thrust surface on the rotor, the wearing and tearing of can generating heat very soon.When bearing thrust surface wear amount surpass a certain amount of after, pinch roller is promptly wiped destructive malfunctions such as shell, bearing heating burn, seal wears leakage of oil and is occurred immediately.
Therefore must there be one deck oil film isolated between bearing thrust face and thrust plate.The oil clearance of this oil lamella and thrust bearing has substantial connection.(seeing Fig. 4-5) by experiment showed, oil clearance angle α=0.3 °-0.6 ° be oil clearance apart from t=B * tg α=0.02-0.04mm, the reaction thrust of oil film can reach 30N.Oil clearance is apart from t<0.02 or t>0.05, and oil film reaction thrust all descends.
The foregoing description only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (6)
1. thrust bearing used for booster, it is sheathed on the rotor of pressurized machine by central axis hole (3), and the both sides of thrust bearing (1) are provided with thrust plate; It is characterized in that: a side of thrust bearing (1) is provided with a plurality of oilholes (2), and this oilhole (2) radially is through to the inner ring of described central axis hole (3) through the inwall of thrust bearing (1); Be distributed with on the side of thrust bearing (1), along described central axis hole (3) and be suitable for by the whole a plurality of oil grooves (4) that cover of the described thrust plate of respective side, the edge of thrust bearing (1) is provided with oil return breach (5).
2. a kind of thrust bearing used for booster according to claim 1 is characterized in that: described oil groove (4) radially evenly distributes along described central axis hole (3), and the covering of the fan between two oil grooves (4) is provided with oil clearance bevel (6).
3. a kind of thrust bearing used for booster according to claim 2 is characterized in that: the high and low point of each oil clearance bevel (6) is with hour hands and distributes.
4. a kind of thrust bearing used for booster according to claim 2 is characterized in that: the oil clearance angle (α) of described oil clearance bevel (6) is the 0.3-0.6 degree, or oil clearance is 0.02-0.04mm apart from (t).
5. a kind of thrust bearing used for booster according to claim 1 is characterized in that: the degree of depth of described oil groove (4) is 0.4-0.9mm.
6. a kind of thrust bearing used for booster according to claim 2 is characterized in that: described oil groove (4) and oil clearance bevel (6) are symmetrically distributed on two sides of thrust bearing (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010201056228U CN201588879U (en) | 2010-02-02 | 2010-02-02 | Thrust bearing for a pressurizing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010201056228U CN201588879U (en) | 2010-02-02 | 2010-02-02 | Thrust bearing for a pressurizing device |
Publications (1)
Publication Number | Publication Date |
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CN201588879U true CN201588879U (en) | 2010-09-22 |
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ID=42748659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2010201056228U Expired - Fee Related CN201588879U (en) | 2010-02-02 | 2010-02-02 | Thrust bearing for a pressurizing device |
Country Status (1)
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CN (1) | CN201588879U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103398095A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Thrust bearing and engine supercharger having the same |
CN107327475A (en) * | 2017-07-13 | 2017-11-07 | 北京航空航天大学 | A kind of floating type thrust bearing of damping greatly of anti-high pulsation |
WO2019217265A1 (en) * | 2018-05-07 | 2019-11-14 | Borgwarner Inc. | Turbocharger for an internal combustion engine |
-
2010
- 2010-02-02 CN CN2010201056228U patent/CN201588879U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103398095A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Thrust bearing and engine supercharger having the same |
CN107327475A (en) * | 2017-07-13 | 2017-11-07 | 北京航空航天大学 | A kind of floating type thrust bearing of damping greatly of anti-high pulsation |
CN107327475B (en) * | 2017-07-13 | 2019-08-09 | 北京航空航天大学 | A kind of floating type thrust bearing of damping greatly of anti-high pulsation |
WO2019217265A1 (en) * | 2018-05-07 | 2019-11-14 | Borgwarner Inc. | Turbocharger for an internal combustion engine |
CN110454430A (en) * | 2018-05-07 | 2019-11-15 | 博格华纳公司 | Internal combustion engine turbocharger |
US11473447B2 (en) | 2018-05-07 | 2022-10-18 | Borgwarner Inc. | Turbocharger for an internal combustion engine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20120202 |