CN203500276U - Thrust bearing and engine supercharger having same - Google Patents
Thrust bearing and engine supercharger having same Download PDFInfo
- Publication number
- CN203500276U CN203500276U CN201320389972.5U CN201320389972U CN203500276U CN 203500276 U CN203500276 U CN 203500276U CN 201320389972 U CN201320389972 U CN 201320389972U CN 203500276 U CN203500276 U CN 203500276U
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- oil
- thrust bearing
- wedge face
- bearing
- rotor shaft
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Abstract
The utility model discloses a thrust bearing and an engine supercharger having the same. The thrust bearing is a single oil wedge surface thrust bearing. The thrust bearing specifically comprises a connecting bearing body oil duct side surface and a compressor and pressure end sealing ring-facing side surface which is a smooth surface, wherein oil wedge surfaces and arc oil ducts are arranged on the inner ring of the connecting bearing body oil duct side surface at intervals and single-side oil holes are respectively formed in each oil wedge surface. The structure of the thrust bearing is simple and reasonable; an oil wedge surface near a compressor and oil holes formed in the oil wedge surface are omitted, and an oil-returning slot is additionally arranged between the thrust bearing of the supercharger and an oil-returning baffle, thereby preventing oil from directly flowing into an oil-returning cavity via a sealing ring and preventing the engine supercharger having the thrust bearing from generating oil pumping. Moreover, another single oil wedge surface thrust bearing and oil ducts thereof are arranged at proper positions of a bearing body and a rotor shaft to play an axial location role so that the transmission stability of the rotor shaft is increased.
Description
Technical field
The utility model relates to engine art, particularly a kind of thrust bearing and have its engine supercharger.
Background technique
Thrust bearing and the engine supercharger with it, by compressed air, improve the density of the induced air of motor, thereby can improve the power per liter of motor.Mixed combustion adjusting due to motor is simultaneously improved, and has improved combustion efficiency, can also play the effect of saving fuel oil and reducing discharge.
As shown in Figure 1, available engine pressurized machine mainly comprises: the gas compressor 12 of exhaust-driven turbo machine 11, compression fresh air and the middle bearing support 13 that plays bearings effect, thrust bearing 14 is located on the rotor shaft 15 that is positioned at bearing support 13.
Existing pressurized machine only uses a thrust bearing 14, as shown in Figures 2 and 3, it has two-sided oil film wedge face, it is connection bearing body oil duct side 141 and towards gas compressor and pressure side seal ring side 142, connection bearing body oil duct side 141 and there is respectively the two-sided oilhole 144 being opened on oil film wedge face 143 towards gas compressor and pressure side seal ring side 142, on connection bearing body oil duct side 141, also offer arc oil duct 145, two-sided oilhole 144 is connected with the oil duct on arc oil duct 145 and pressurized machine bearing support, during pressurized machine work, lubricant oil enters 143 pairs of thrust bearings of oil film wedge face through arc oil duct 145 and is lubricated with cooling.
The booster thrust bearing produced gas compressor end that is positioned at, near gas compressor end seal ring 146, when impeller shaft is worked, thrust bearing two ends oil film wedge face needs oil lubrication, being close to pressurized machine oil return baffle 147 towards gas compressor and pressure side seal ring side 142 of thrust bearing 14, make lubricant oil be easy to effect current downflow at oil film wedge face 143 in seal ring 146 and annular groove, when gas compressor working speed and pressure are when low, be easy to alter oil.
Model utility content
The utility model is in order to overcome defect in above-mentioned prior art, provides a kind of simple and reasonable, can avoid pressurized machine to alter oily thrust bearing and have its engine supercharger.
For achieving the above object, according to an aspect of the present utility model, provide a kind of thrust bearing, it is simgle oil wedge face thrust bearing, specifically comprises:
Connection bearing body oil duct side, in it, central spacer is laid with oil film wedge face and arc oil duct, and each oil film wedge face offers respectively one side oilhole;
Towards gas compressor and pressure side seal ring side, it is light face structure.
In technique scheme, oil film wedge face is three, and interval is laid in ring in connection bearing body oil duct side.
In technique scheme, on each oil film wedge face, offer one side oilhole.
In technique scheme, one end of each oil film wedge face offers respectively an one side oilhole.
According to another aspect of the present utility model, a kind of engine supercharger is provided, comprise: the gas compressor of exhaust-driven turbo machine, compression fresh air and the middle bearing support that plays bearings effect, above-mentioned thrust bearing is located on the rotor shaft that is positioned at bearing support, between thrust bearing and pressurized machine oil return baffle, has oil-return groove.
In technique scheme, on the rotor shaft in bearing support, be also equipped with another simgle oil wedge face thrust bearing.
In technique scheme, another simgle oil wedge face thrust bearing is located on rotor shaft by thrust housing.
Compared with prior art, the utlity model has following beneficial effect: this thrust bearing structure advantages of simple, cancel the oil film wedge face of pressured mechanism of qi end and the oilhole of this oil film wedge face, and between booster thrust bearing produced and oil return baffle, increase an oil-return groove, to stop oil to the flowing and allow oil flow directly into bearing support oil back chamber of seal ring, can avoid the pressurized machine with this thrust bearing to alter oil.In addition, at bearing support and rotor shaft correct position, increase thrust bearing and the oil duct thereof of another simgle oil wedge face, play axially locating effect, increased the transmission stability of rotor shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of available engine pressurized machine;
Fig. 2 is the structural representation of existing thrust bearing connection bearing body oil duct side;
Fig. 3 is that existing thrust bearing is towards the structural representation of gas compressor and pressure side seal ring side;
Fig. 4 is the structural representation of engine supercharger of the present utility model;
Fig. 5 is the structural representation of thrust bearing connection bearing body oil duct of the present utility model side;
Fig. 6 is that thrust bearing of the present utility model is towards the structural representation of gas compressor and pressure side seal ring side.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.It will be appreciated that, mentioned in following mode of execution of the present utility model " on ", D score, " left side ", " right side ", " front " and " reverse side " all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only used to be convenient to explanation, do not represent the restriction to the concrete technological scheme of the utility model.
Thrust bearing structure advantages of simple of the present utility model, cancel the oil film wedge face of pressured mechanism of qi end and the oilhole of this oil film wedge face, and between thrust bearing and pressurized machine oil return baffle, increase an oil-return groove, to stop oil to the flowing and allow oil flow directly into bearing support oil back chamber of seal ring, can avoid pressurized machine to alter oil; And at bearing support and rotor shaft correct position (comprising the position between two impellers), increase thrust bearing and the oil duct thereof of another simgle oil wedge face, to increase the transmission stability of rotor shaft.
As shown in Figures 4 to 6, this thrust bearing has one side oil film wedge face, only retains the oil film wedge face structure of connection bearing body oil duct side, and towards gas compressor and pressure side seal ring side, cancels the oilhole of crude oil wedge surface and this oil film wedge face; Its concrete structure comprises: connection bearing body oil duct side 21 and towards gas compressor and pressure side seal ring side 22, and be opened in oil film wedge face 211, one side oilhole 212 and the arc oil duct 213 on connection bearing body oil duct side 21.One side oilhole 212 is connected with the oil duct on arc oil duct 213 and pressurized machine bearing support, and during pressurized machine work, lubricant oil enters 211 pairs of thrust bearings of oil film wedge face through arc oil duct 213 and is lubricated with cooling.
As shown in Figure 5 and Figure 6, this thrust bearing body is disc-shaped structure, open lower side, and in the card of connection bearing body oil duct side 21, central spacer is laid with three oil film wedge faces 211, and one end of each oil film wedge face 211 offers respectively an one side oilhole 212; Arc oil duct 213 is positioned at the outer shroud of three oil film wedge faces 211.Towards gas compressor and pressure side seal ring side 22, having cancelled existing thrust bearing towards gas compressor and the oil film wedge face of pressure side seal ring side and the oilhole of this oil film wedge face, is light face structure.
As shown in Figure 6, the engine supercharger with this thrust bearing mainly comprises: the gas compressor 32 of exhaust-driven turbo machine 31, compression fresh air and the middle bearing support 33 that plays bearings effect, thrust bearing 2 is located on the rotor shaft 34 that is positioned at bearing support 33, its towards gas compressor and pressure side seal ring side 22 towards pressurized machine oil return baffle 35 sides.Between gas compressor 32 and bearing support 33, be provided with gas compressor backboard 36, pressured mechanism of qi backboard 36 compression fit of this thrust bearing 2, its oil film wedge faces oil duct side, opposite side oil film wedge face is cancelled, and between thrust bearing 2 and oil return baffle 35, increase an oil-return groove 37, during pressurized machine work, lubricant oil enters 211 pairs of thrust bearings of oil film wedge face through arc oil duct 213 and is lubricated with cooling, oil-return groove 37 can stop oil to the flowing and allow oil flow directly into bearing support oil back chamber of seal ring, has avoided pressurized machine to alter oil.
The thrust bearing 4 that increases another simgle oil wedge face at bearing support 33 and rotor shaft 34 correct positions (comprising the position between two impellers), its oil film wedge faces the pusher side of calming the anger, and plays axially locating (towards turbo-side) effect, to increase the transmission stability of rotor shaft.This simgle oil wedge face thrust bearing packs into from bearing support oil back chamber, will increase a thrust housing 41 on rotor shaft for this reason, and this thrust housing assembles and be fixed on rotor shaft when rotor shaft is assembled on bearing support; For the simgle oil wedge face thrust bearing this increase packs into from bearing support oil back chamber, the oil back chamber of bearing support is designed to split formula structure, but still substantially retaining all the other basic structures of original bearing support, this bearing body structure still can be continued to use original critical process and equipment and processes like this.
To sum up, this thrust bearing structure advantages of simple, cancel the oil film wedge face of pressured mechanism of qi end and the oilhole of this oil film wedge face, and between booster thrust bearing produced and oil return baffle, increase an oil-return groove, to stop oil to the flowing and allow oil flow directly into bearing support oil back chamber of seal ring, can avoid the pressurized machine with this thrust bearing to alter oil.In addition, at bearing support and rotor shaft correct position, increase thrust bearing and the oil duct thereof of another simgle oil wedge face, play axially locating effect, increased the transmission stability of rotor shaft.
Disclosed is above only several specific embodiment of the present utility model, and still, the utility model is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (7)
1. a thrust bearing, is characterized in that, it is simgle oil wedge face thrust bearing, specifically comprises:
Connection bearing body oil duct side, in it, central spacer is laid with oil film wedge face and arc oil duct, and described in each, oil film wedge face offers respectively one side oilhole;
Towards gas compressor and pressure side seal ring side, it is light face structure.
2. thrust bearing according to claim 1, is characterized in that: described oil film wedge face is three, and interval is laid in ring in connection bearing body oil duct side.
3. thrust bearing according to claim 2, is characterized in that: described in each, on oil film wedge face, offer one side oilhole.
4. thrust bearing according to claim 3, is characterized in that: described in each, one end of oil film wedge face offers respectively an one side oilhole.
5. an engine supercharger, it is characterized in that: comprising: the gas compressor of exhaust-driven turbo machine, compression fresh air and the middle bearing support that plays bearings effect, thrust bearing as described in claim 1 to 4 any one be located in be positioned at as described on the rotor shaft of bearing support, between described thrust bearing and pressurized machine oil return baffle, there is oil-return groove.
6. engine supercharger according to claim 5, is characterized in that: on the rotor shaft in described bearing support, be also equipped with another simgle oil wedge face thrust bearing.
7. engine supercharger according to claim 6, is characterized in that: described another simgle oil wedge face thrust bearing is located on described rotor shaft by thrust housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320389972.5U CN203500276U (en) | 2013-07-02 | 2013-07-02 | Thrust bearing and engine supercharger having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320389972.5U CN203500276U (en) | 2013-07-02 | 2013-07-02 | Thrust bearing and engine supercharger having same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500276U true CN203500276U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320389972.5U Expired - Lifetime CN203500276U (en) | 2013-07-02 | 2013-07-02 | Thrust bearing and engine supercharger having same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500276U (en) |
Cited By (2)
| 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 |
| CN110081069A (en) * | 2014-12-18 | 2019-08-02 | 三菱重工发动机和增压器株式会社 | The discharge equipment of thrust bearing and turbocharger including it |
-
2013
- 2013-07-02 CN CN201320389972.5U patent/CN203500276U/en not_active Expired - Lifetime
Cited By (2)
| 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 |
| CN110081069A (en) * | 2014-12-18 | 2019-08-02 | 三菱重工发动机和增压器株式会社 | The discharge equipment of thrust bearing and turbocharger including it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
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| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: Expiration and Termination of 39 Volume 2901 Patent on July 18, 2023 Number: 29-01 Volume: 39 |