CN203769866U - Supercharger bearing structure - Google Patents
Supercharger bearing structure Download PDFInfo
- Publication number
- CN203769866U CN203769866U CN201420016226.6U CN201420016226U CN203769866U CN 203769866 U CN203769866 U CN 203769866U CN 201420016226 U CN201420016226 U CN 201420016226U CN 203769866 U CN203769866 U CN 203769866U
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- bearing
- face
- thrust
- thrust plate
- oil
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Abstract
The utility model provides a supercharger bearing structure. The supercharger bearing structure comprises two floating bearings, a thrust bearing, a pressing end thrust plate and a turbine end thrust plate, wherein the two floating bearings, the thrust bearing, the pressing end thrust plate and the turbine end thrust plate are all annularly arranged on the outer side of a rotor shaft of a supercharger; one floating bearing, the turbine end thrust plate, the thrust bearing, the pressing end thrust plate and the other floating bearing are arranged in sequence along the direction from the turbine end of the supercharger to the pressing end of the supercharger. According to the supercharger bearing structure, the two floating bearings, the thrust bearing, the pressing end thrust plate and the turbine end thrust plate are organically combined together; compared with the structure in the prior art, the service life of the supercharger bearing structure is more than 25000 hours, the mechanical efficiency of the bearing is not less than 96%, the filter fineness for lubricating oil is not more than 59 microns (the requirement for the lubricating oil is low), and a better lubricating effect can also be achieved even if the lubricating oil is used.
Description
Technical field
The utility model relates to a kind of improvement of pressurized machine, relates in particular to a kind of pressurized machine bearing structure.
Background technique
At present, turbosupercharger is quite extensive in the use of society, the increasingly stringent of the development of engine technology and the regulation relevant with environmental protection, it is popularized rapidly turbocharger of motor technology on the one hand, also makes the requirement of turbocharger of motor on the other hand more strict.
Turbosupercharger is actually a kind of air compressor and forms with the turbine being coaxially connected therewith, increases air inflow by pressurized air.It is to utilize the energy of the waste gas of motor discharge to promote turbine, and turbine drives again coaxial compressor impeller, and the air that compressor impeller force feed is sent here by air-strainer pipeline makes it supercharging and enters cylinder.When engine speed speeds, the waste gas velocity of discharge is also synchronizeed and is speeded with secondary speed, impeller just compresses more air and enters cylinder, the pressure of air and density increase the more fuel that can burn, the rotating speed of corresponding increase fuel quantity and adjustment motor, just can increase the output power of motor.
In prior art, need mechanical efficiency and all good pressurized machine bearing structures of lubrication effect of a kind of working life, bearing badly.
Model utility content
The technical problems to be solved in the utility model is to provide mechanical efficiency and all good pressurized machine bearing structures of lubrication effect of a kind of working life, bearing.
The utility model provides a kind of pressurized machine bearing structure, comprise two floating bearings, a thrust bearing, a pressure side thrust plate and a whirlpool end thrust plate, described two floating bearings, thrust bearing, pressure side thrust plate and whirlpool end thrust plate are all located on the outside of the rotor shaft of pressurized machine, described floating bearing, whirlpool end thrust plate, thrust bearing, pressure side thrust plate and described in another floating bearing arrange successively to the direction of pressure side along the whirlpool end of automatic pressure intensifier.
One side end face of described floating bearing is provided with some lug bosses.
On described floating bearing, be also provided with inwall oil film wedge face, annular oil groove and oil inlet hole, described inwall oil film wedge face is positioned on the inwall of described floating bearing, described annular oil groove is located at the outer wall of described floating bearing, and described oil inlet hole is communicated with described inwall oil film wedge face and described annular oil groove.
Described whirlpool end thrust plate comprises internal ring portion and the outer portion that is fixed at described internal ring portion outside, and described thrust bearing is located on described inner loop outside, and is positioned at a side of the close pressurized machine pressure side of described external rings.
Described thrust bearing both ends of the surface are equipped with end face oil film wedge face, and described end face oil film wedge face is provided with oil groove.
Described end face oil film wedge face is that circular slanting is domatic, and the center-side of described end face oil film wedge face is communicated to the bearing hole of described thrust bearing, and the center-side of described end face oil film wedge face is lower than outer circumference end, and described oil groove is along the radially setting of described thrust bearing.
The outer circumference end outside of described end face oil film wedge face is provided with end face circular groove.
In described thrust bearing, be provided with oil duct, on described thrust bearing, be also provided with and run through two end faces of described thrust bearing, and be communicated to the through hole of described oil duct.
The utility model is taking into full account under the situation of the factors such as the mechanical efficiency of working life, bearing, requirement to lubricant oil, cooling, lubrication effect, design this pressurized machine bearing structure, together with two floating bearings, a thrust bearing, a pressure side thrust plate have organically been combined in a whirlpool end thrust plate, compared with the structure of prior art, working life of the present utility model is more than 25000 hours; Bearing mechanical efficiency is not less than 96%, to the filter precision of lubricant oil not higher than 50 microns (less demanding to lubricant oil), even that is with this class lubricating oil, still can play preferably lubrication effect.
Brief description of the drawings
Fig. 1 is the structural representation of the pressurized machine bearing structure that provides of the utility model one embodiment;
Fig. 2 is the structural representation of floating bearing in the utility model one embodiment;
Fig. 3 is A-A ' sectional drawing in Fig. 2;
Fig. 4 is B-B ' sectional drawing in Fig. 3;
Fig. 5 is the sectional drawing of whirlpool end thrust plate in the utility model one embodiment;
Fig. 6 is the structural representation of thrust bearing one end face in the utility model one embodiment;
Fig. 7 is C-C ' sectional drawing in Fig. 6;
Fig. 8 is the structural representation of thrust bearing other end in the utility model one embodiment;
Fig. 9 is the sectional drawing of the utility model one embodiment's intermediate voltage terminal thrust plate;
In figure, 1,5-floating bearing; 11-lug boss; 12-inwall oil film wedge face; 13-annular oil groove; 14-oil inlet hole; 2-whirlpool end thrust plate; 21-internal ring portion; 22-outer portion; 3-thrust bearing; 31-end face oil film wedge face; 32-oil groove; 33-end face circular groove; 34-oil duct; 35-through hole; 4-pressure side thrust plate.
Embodiment
Pressurized machine bearing structure the utility model being provided below with reference to Fig. 1 to Fig. 9 is described in detail, it is the utility model one optional embodiment, can think that those skilled in the art can modify and polish it in the scope that does not change the utility model spirit and content.
Please refer to Fig. 1, the present embodiment provides a kind of pressurized machine bearing structure, comprise two floating bearings 1 and 5, thrust bearing 3, pressure side thrust plate 4 and a whirlpool end thrust plate 2, described two floating bearings 1 and 5, thrust bearing 3, pressure side thrust plate 4 and whirlpool end thrust plate 2 are all located on the outside of the rotor shaft 6 of pressurized machine, described floating bearing 1, whirlpool end thrust plate 2, thrust bearing 3, pressure side thrust plate 4 and described in another floating bearing 5 arrange successively to the direction of pressure side along the whirlpool end of automatic pressure intensifier, in Fig. 1, arrange from right to left.
Please refer to Fig. 2 to Fig. 4, be described as an example of floating bearing 1 example, the structure of floating bearing 5 is identical with floating bearing 1.One side end face of described floating bearing 1 is provided with some lug bosses 11, does not rotate with rotor shaft 6 to fix floating bearing 1, and the quantity of lug boss 11 is 3 in the present embodiment.The main supporting rotor axle 6 of this two floating bearing 1 and 5, i.e. the weight of supercharger rotor.On described floating bearing 1, be also provided with inwall oil film wedge face 12, annular oil groove 13 and oil inlet hole 14, described inwall oil film wedge face 12 is positioned on the inwall of described floating bearing 1, described annular oil groove 13 is located at the outer wall of described floating bearing 1, described oil inlet hole 14 is communicated with described inwall oil film wedge face 12 and described annular oil groove 13, and lubricant oil is by described oil inlet hole 14 inlet and outlets.
Please refer to Fig. 5, and in conjunction with Fig. 1, described whirlpool end thrust plate 2 comprises internal ring portion 21 and the outer portion 22 that is fixed at described internal ring portion 21 outsides, internal ring portion 21 and outer portion 22 are one-body molded, described thrust bearing 3 is located on described inner loop 21 outsides, and is positioned at a side of the close pressurized machine pressure side of described external rings 22.
Please refer to Fig. 6 to Fig. 8, described thrust bearing 3 both ends of the surface are equipped with end face oil film wedge face 31, and described end face oil film wedge face 31 is provided with oil groove 32.Further, described end face oil film wedge face 31 is that circular slanting is domatic, the center-side of described end face oil film wedge face 31 is communicated to the bearing hole 36 of described thrust bearing 3, and the center-side of described end face oil film wedge face 31 is lower than outer circumference end, and described oil groove 32 is along the radially setting of described thrust bearing 3.The outer circumference end outside of described end face oil film wedge face 31 is provided with end face circular groove 33.
In the present embodiment, in described thrust bearing 3, be provided with oil duct 34, on described thrust bearing 3, be also provided with and run through two end faces of described thrust bearing, and be communicated to the through hole 35 of described oil duct 34.
When turbocharger operation, due to the existence of axial clearance, along with rotatablely moving of rotor shaft 6, this gap must have enough lubricant oil to form the contact between oil film support force prevention part, between some part and rotor shaft 12, also must have enough lubricant oil to form oil film and support, thrust bearing 3 can utilize its oil duct 34 to realize the transmission of lubricant oil.
In the present embodiment, thrust bearing 3 has the equal face of oil film wedge face on thrust surface, produces opposite force play thrust function by the oil film on extruding oil film wedge face.Also predeterminable on the thrust surface of thrust bearing 3 have a signs of wear line, is convenient in use can determine whether need to change bearing by naked-eye observation.
In other optional embodiments of the utility model; between two floating bearings 1 and 5, thrust bearing 3, a pressure side thrust plate 4 and a whirlpool end thrust plate 2, also can be provided with the parts such as thrust ring; as long as order meets requirement of the present utility model but it is arranged, because people is for it is for departing from protection domain of the present utility model.
In sum, the utility model is taking into full account under the situation of the factors such as the mechanical efficiency of working life, bearing, requirement to lubricant oil, cooling, lubrication effect, design this pressurized machine bearing structure, together with two floating bearings, a thrust bearing, a pressure side thrust plate have organically been combined in a whirlpool end thrust plate, compared with the structure of prior art, working life of the present utility model is more than 25000 hours; Bearing mechanical efficiency is not less than 96%, to the filter precision of lubricant oil not higher than 50 microns (less demanding to lubricant oil), even that is with this class lubricating oil, still can play preferably lubrication effect.In addition, the present embodiment also can be easily by control oil pressure, oil flow, measure oil grasp its behaviour in service into and out of temperature.
Claims (8)
1. a pressurized machine bearing structure, it is characterized in that: comprise two floating bearings, a thrust bearing, a pressure side thrust plate and a whirlpool end thrust plate, described two floating bearings, thrust bearing, pressure side thrust plate and whirlpool end thrust plate are all located on the outside of the rotor shaft of pressurized machine, described floating bearing, whirlpool end thrust plate, thrust bearing, pressure side thrust plate and described in another floating bearing arrange successively to the direction of pressure side along the whirlpool end of automatic pressure intensifier.
2. pressurized machine bearing structure as claimed in claim 1, is characterized in that: a side end face of described floating bearing is provided with some lug bosses.
3. pressurized machine bearing structure as claimed in claim 1, it is characterized in that: on described floating bearing, be also provided with inwall oil film wedge face, annular oil groove and oil inlet hole, described inwall oil film wedge face is positioned on the inwall of described floating bearing, described annular oil groove is located at the outer wall of described floating bearing, and described oil inlet hole is communicated with described inwall oil film wedge face and described annular oil groove.
4. pressurized machine bearing structure as claimed in claim 1, it is characterized in that: described whirlpool end thrust plate comprises internal ring portion and the outer portion that is fixed at described internal ring portion outside, described thrust bearing is located on described internal ring portion outside, and is positioned at a side of the close pressurized machine pressure side of described outer portion.
5. pressurized machine bearing structure as claimed in claim 1, is characterized in that: described thrust bearing both ends of the surface are equipped with end face oil film wedge face, and described end face oil film wedge face is provided with oil groove.
6. pressurized machine bearing structure as claimed in claim 5, it is characterized in that: described end face oil film wedge face is that circular slanting is domatic, the center-side of described end face oil film wedge face is communicated to the bearing hole of described thrust bearing, and the center-side of described end face oil film wedge face is lower than outer circumference end, and described oil groove is along the radially setting of described thrust bearing.
7. pressurized machine bearing structure as claimed in claim 5, is characterized in that: the outer circumference end outside of described end face oil film wedge face is provided with end face circular groove.
8. pressurized machine bearing structure as claimed in claim 1, is characterized in that: in described thrust bearing, be provided with oil duct, be also provided with and run through two end faces of described thrust bearing on described thrust bearing, and be communicated to the through hole of described oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016226.6U CN203769866U (en) | 2014-01-10 | 2014-01-10 | Supercharger bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016226.6U CN203769866U (en) | 2014-01-10 | 2014-01-10 | Supercharger bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769866U true CN203769866U (en) | 2014-08-13 |
Family
ID=51287066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016226.6U Expired - Fee Related CN203769866U (en) | 2014-01-10 | 2014-01-10 | Supercharger bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847785A (en) * | 2015-05-20 | 2015-08-19 | 湖南天雁机械有限责任公司 | Novel floating bearing for turbocharger |
-
2014
- 2014-01-10 CN CN201420016226.6U patent/CN203769866U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847785A (en) * | 2015-05-20 | 2015-08-19 | 湖南天雁机械有限责任公司 | Novel floating bearing for turbocharger |
| CN104847785B (en) * | 2015-05-20 | 2017-12-26 | 湖南天雁机械有限责任公司 | A kind of floating bearing of turbo-charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |