CN201326420Y - Separate coaxial loading device of turbocharger - Google Patents
Separate coaxial loading device of turbocharger Download PDFInfo
- Publication number
- CN201326420Y CN201326420Y CNU2008202275352U CN200820227535U CN201326420Y CN 201326420 Y CN201326420 Y CN 201326420Y CN U2008202275352 U CNU2008202275352 U CN U2008202275352U CN 200820227535 U CN200820227535 U CN 200820227535U CN 201326420 Y CN201326420 Y CN 201326420Y
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- bearing
- split
- oil
- oil film
- turbosupercharger
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Abstract
The utility model discloses a separate coaxial loading device of turbocharger, which comprises a main separate loading bearing arranged in the bearing body of the turbocharger and a separate fitted bearing; the oil wedge surface of the main separate loading bearing and the oil wedge surface of the separate fitted bearing are oppositely arranged; a relatively closed supporting oil cavity is formed between the oil wedge surface of the main separate loading bearing and the oil wedge surface of the separate fitted bearing. The separate coaxial loading device of turbocharger effectively changes the loading mode of the thrust bearing of a normal supercharger, adjusts the loading structure of the thrust bearing into a relatively sealed environment to carry out, and solves the problems of invalidation and pool sealing performance of the sealing device of the existing supercharger; the main separate loading bearing sufficiently ensures the building of a supporting oil film and the reflowing of lubricating oil, thus fundamentally solving the sealing problem of the gas compressor end of the turbocharger and reducing the sealing requirement of the anaphase structure of the gas compressor end; the lubricating oil entering the sealing system of the gas compressor end is only 10 to 20 percent of the that of the original structure, and an ideal sealing effect can be realized only by employing a seal ring.
Description
Technical field
The utility model relates to the bearing support structure of a kind of motor with turbosupercharger, relate to the gas compressor sealability that can effectively promote turbosupercharger, a kind of turbosupercharger split axial carrying device that reduces oil leak specifically, belong to the supercharging of internal combustion engine field.
Background technique
The engine turbine supercharging technology has obtained popularizing rapidly in field of internal combustion engine through in recent years fast development, and increasing motor has improved power performance by supercharging technology, has improved economic indicator, has reduced exhaust emissions, has reduced the noise of motor.Along with the development of supercharging technology, turbosupercharger has realized 100% popularize in medium and heavy engine art, and the miniature high-speed motor also progressively adopts supercharging technology under the demand of national Abgasgesetz and lifting HP, hp/litre at present.
Turbosupercharger is in use utilized the energy in the high-temp waste gas of several Baidu that motor discharges, and changes, tens0000 changes even rotating speed high speed rotating that hundreds of thousands changes with per minute several ten thousand, to satisfy response fast and to improve the purpose of suction pressure.Pressurized machine has adopted the dicyclo floating bearing in order to satisfy maintainability under the high temperature and high speed, and bearing is inside and outside to provide clean extreme pressure lubricant by special oil supply system, forms the pressure lubrication oil film, plays the purpose that supports turbine rotor.Simultaneously, taken away a large amount of heat of rotor shaft, improved reliability of products from the low-temperature lubrication machine oil that the turbosupercharger filler opening enters.High-tension lubrication machine oil needs in time get back in the engine crankcase by oil returning tube after having finished above-mentioned oil film support and refrigerating function.In this process, because the characteristics of the rigid seal structure similar that pressurized machine adopts, certainly will there be the lubricating oil leakage problem of pressurized machine to engine piston.Serious day by day along with the congestion in road situation, the phenomenon that the turbocharger air compressor end short time leaks also appears in the engine long time easily under idling operation.
After the lubricant oil of turbosupercharger enters bearing support, enter axial thrust bearing and radial floating bearing by special oil leab, the build-up pressure lubricant film guarantees that pressurized machine reliably turns round.Concrete structure as shown in Figure 1, pressure lubrication machine oil enters turbosupercharger inside from filler opening 13, enters in the thrust-bearing 1 by horizontal oil duct 14 parts then, another part enters in the floating bearing 10 by oblique oil duct 12.The lubricant oil that enters in the thrust-bearing 1 has formed pressure side support oil film 3, whirlpool end support oil film 9 in the both sides of thrust-bearing 1 with a fitting surface of envelope 5 by the horizontal oilhole 2 of thrust-bearing, realizes that the axially locating of pressurized machine turns round with reliable.Enter the lubricant oil of floating bearing 10, form the radial support oil film in the inside and outside both sides of floating bearing 10 by floating bearing radial direction oil hole 11.Thrust-bearing 1 reduces lubricating oil pressures by a series of labyrinth structures on the axle envelope 5 after the pressure side support oil film 3 that forms is finished lubricated supporting effect, finish finally sealed by 6 drainages of draining hole and seal ring 4, prevents to leak to the gas compressor end.Lubricant oil finish support and cooling about after, collect then by bearing support oil back chamber 8 and to get back in the lubricating oil tank through bearing support spill port 7.
At present, enter the lubricant oil of turbosupercharger floating bearing,, can be good at being collected and entering in the crankcase of motor because far away apart from the seal ring at pressurized machine two ends.Yet, enter the lubricant oil of thrust-bearing system by horizontal oil duct, formed two at the two ends of thrust-bearing and supported pastas, realize support function after, lubricant oil near compressor impeller waits parts very fast near gas compressor end seal ring by the axle envelope, causes oil leak.Therefore, need a kind of turbosupercharger split axial carrying device of design, replace original two-sided bearing structure, form a lubricated supporting structure, avoid lubricant oil to leak from the gas compressor end in one side away from compressor impeller.
The model utility content
Problem to be solved in the utility model is to overcome the gas compressor end sealing problem that the two-sided thrust-bearing of monomer causes, simple in structure, the reliable a kind of turbosupercharger split axial carrying device that has also promoted the sealability of pressurized machine significantly is provided.
In order to address the above problem, the utility model by the following technical solutions:
A kind of turbosupercharger split axial carrying device, comprise the split master carrier bearing and the split fitted bearing that are arranged in the turbo-charger bearing body, the oil film wedge face of described split master carrier bearing and the oil film wedge face of split fitted bearing are oppositely arranged, and form the support oil pocket of a relative closure between the two.
Below be the utility model patent further improvement of these options:
Be provided with the oil film wedge face supporting sleeve that rotates synchronously with turbosupercharger in the support oil pocket between split master carrier bearing and the split fitted bearing, form main carrying in the cavity that lubricant oil cooperates and support oil film between oil film wedge face supporting sleeve and split main bearing, form in the cavity that between oil film wedge face supporting sleeve and split fitted bearing, cooperates and cooperate the support oil film.
Be provided with split bearing spacer sleeve between split master carrier bearing and the split fitted bearing, make and form fixing axial space between split master carrier bearing and the split fitted bearing.
Described split master carrier bearing is provided with the main carrying fuel feeding road of blind hole shape away from a side of gas compressor, and it is lubricated to provide single face to support.
Described split master carrier bearing is provided with main bearing oil film wedge face away from a side of gas compressor, and main carrying is supported oil film and is arranged between main bearing oil film wedge face and the oil film wedge face supporting sleeve and cooperates in the cavity of formation.
Described split master carrier bearing is that main bearing does not have oily end face near a side end face of gas compressor end, and this main bearing does not have oily end face and is provided with axial retaining oil groove.
Described axial retaining oil groove cooperates the gap that forms 0.15-0.4mm with the axle envelope.
Described main bearing oil film wedge face is provided with main carrying main bearing oil guide slot, and the bearing oil guide slot becomes diverging shape along the pressurized machine sense of rotation.
The utility model has effectively changed the thrust-bearing bearing mode of conventional pressurized machine, the thrust-bearing bearing structure has been adjusted in the environment that seals relatively carried out, and has solved problems such as present pressurized machine seal arrangement inefficacy, sealability difference.Turbosupercharger split axial carrying device in the utility model has fully taken into account the applying working condition of turbosupercharger, be provided with split master carrier bearing in the bigger one side of axial bearing capacity, fully guarantee to support the foundation of oil film and the backflow of lubricant oil, in the little one side of bearing capacity, adopted the split fitted bearing to carry out supplemental support.Change by above structure, fundamentally solved the gas compressor end sealing problem of turbosupercharger, reduced gas compressor end later stage sealing structure demand, the lubricant oil that enters gas compressor end sealing system only is the 10-20% of original structure, the sealing effect that only adopts seal ring just can realize ideal.This model utility can be under the constant situation of the original bearing support compact structure of pressurized machine, solves the thrust-bearing that we are concerned about and supports and sealing problem simple possible, safety coefficient height.
To sum up, at present handing over congestion obviously to reach plateau section boost demand urgent day by day crucial moment gradually, novel turbosupercharger split axial carrying device has been taken all factors into consideration structure function and sealing effect,, can be widely used in various types of turbosupercharger as required.
Below in conjunction with drawings and Examples the utility model patent is further described:
Description of drawings
Accompanying drawing 1 is the two-sided thrust-bearing system architecture of a turbosupercharger monomer schematic representation in the background technique;
Accompanying drawing 2 is turbosupercharger split axial carrying device structural representations among the utility model embodiment;
Accompanying drawing 3 is split master carrier bearing structural representations among the utility model embodiment;
Accompanying drawing 4 is split master carrier bearing right elevations among the utility model embodiment;
Accompanying drawing 5 is split fitted bearing structural representations among the utility model embodiment.
The title of each several part among the figure: the 1-thrust-bearing, the horizontal oilhole of 2-thrust-bearing, the 3-pressure side supports oil film, the 4-seal ring, 5-axle envelope, 6-draining hole, 7-bearing support spill port, 8-bearing support oil back chamber, 9-whirlpool end supports oil film, the 10-floating bearing, 11-floating bearing radial direction oil hole, the oblique oil duct of 12-, the 13-filler opening, the horizontal oil duct of 14-, 15-split master carrier bearing, 16-master is carried the fuel feeding road, 17-master is carried the support oil film, 18-oil film wedge face carrying cover, 19-split fitted bearing, 20-split bearing spacer sleeve, 21-cooperates support oil film, 22-fitted bearing oilhole, 23-fitted bearing oil supply, 24-fitted bearing fuel feeding road, 25-axially keeps off oil groove, and the 26-main bearing does not have oily end face, 27-main bearing drain pan, 28-main bearing oil film wedge face, 29-main bearing spacing hole, 30-main bearing oil guide slot, 31-fitted bearing spacing hole, 32-fitted bearing oil film wedge face, 33-turbo-charger bearing body.
Embodiment
Embodiment, as shown in Figure 2, a kind of turbosupercharger split axial carrying device, comprise the split master carrier bearing 15 and the split fitted bearing 19 that are arranged in the turbo-charger bearing body 33, the oil film wedge face of described split master carrier bearing 15 and the oil film wedge face of split fitted bearing 19 are oppositely arranged, form the support oil pocket of a relative closure between the two, the oil film wedge face supporting sleeve 18 that is provided with split bearing spacer sleeve 20 between split main bearing 15 and the split fitted bearing 19 and rotates synchronously with turbosupercharger, form main carrying in the cavity that lubricant oil cooperates and support oil film 17 between oil film wedge face supporting sleeve 18 and split main bearing 15, form in the cavity that between oil film wedge face supporting sleeve 18 and split fitted bearing 19, cooperates to cooperate and support oil film 21, described pressurized machine lubricant oil is by pressurized machine filler opening 13, laterally oil duct 14 enters split master carrier bearing 15, form main carrying in a side and support oil film 17 near oil film wedge face supporting sleeve 18, finished surface is to the axial main carrying of gas compressor end, pressurized machine lubricant oil enters fitted bearing oil groove 23 by fitted bearing oilhole 24, form to cooperate in a side by the fitted bearing oilhole 22 on the split fitted bearing 19 then and support oil film 21 near oil film wedge face supporting sleeve 18, finished surface is to the axial cooperation carrying of turbine end, after lubricant oil finishes the oil film supporting effect, collect the back by bearing support oil back chamber 8 and be back in the engine lubrication fuel tank by bearing support spill port 7.
As shown in Figure 3, described split master carrier bearing 15 is provided with the main carrying fuel feeding road 16 of blind hole shape away from a side of gas compressor, the lubricating oil that enters can only flow to the end of split master carrier bearing 15 away from gas compressor, described split master carrier bearing 15 is provided with main bearing oil film wedge face 28 away from a side of gas compressor, main carrying is supported oil film 17 and is arranged between main bearing oil film wedge face 28 and the oil film wedge face supporting sleeve 18 and cooperates in the cavity of formation, the lubricant oil that main carrying support oil film 17 flows out is collected through main bearing drain pan 27 and is refluxed, split master carrier bearing 15 is that main bearing does not have oily end face 26 near the end face of gas compressor end, the end is provided with axial retaining oil groove 25, can seal 5 with axle and cooperate the Spielpassung seal ring 4 that forms 0.15-0.4mm to carry out axial oil sealing.
As shown in Figure 4, described main bearing oil film wedge face 28 is provided with main bearing oil guide slot 30, described split master carrier bearing is provided with the main bearing spacing hole 29 that can join together by clamping bolt and split bearing spacer sleeve 20, lubricant oil is finished to support and is laggardly gone into main bearing oil guide slot 30 and enter main bearing drain pan 27 and carry out oil return, main bearing oil guide slot 30 becomes diverging shape along the pressurized machine sense of rotation, improves the Oil Guide ability.
As shown in Figure 5, the split fitted bearing is provided with and can joins fitted bearing spacing hole 31 together by clamping bolt and split bearing spacer sleeve 20, and described split fitted bearing is a fitted bearing oil film wedge face 32 near an end face of gas compressor.
The utility model patent is for the sealing demand of turbocharger, and the turbocharger split of research and development is axial Bogey has effectively been controlled foundation and the guiding of lubricating oil Oil Film Supporting, with pressure lubrication oil subregion sealed tube Reason, an industry sealing difficult problem that efficiently solves. The type Split axial carrying device of turbo-charger be On original thrust bearing basis, by adjusting the structure acquisition of arranging, cost is low, and inheritance is good.
Claims (8)
1, a kind of turbosupercharger split axial carrying device, comprise the split master carrier bearing (15) and the split fitted bearing (19) that are arranged in the turbo-charger bearing body (33), it is characterized in that: the oil film wedge face of the oil film wedge face of described split master carrier bearing (15) and split fitted bearing (19) is oppositely arranged, and forms the support oil pocket of a relative closure between the two.
2, a kind of turbosupercharger split axial carrying device according to claim 1, it is characterized in that: be provided with the oil film wedge face supporting sleeve (18) that rotates synchronously with turbosupercharger in the described support oil pocket, form main carrying in the cavity that lubricant oil cooperates and support oil film (17) between oil film wedge face supporting sleeve (18) and split main bearing (15), formation cooperation support oil film (21) in the cavity that between oil film wedge face supporting sleeve (18) and split fitted bearing (19), cooperates.
3, a kind of turbosupercharger split axial carrying device according to claim 1 is characterized in that: be provided with split bearing spacer sleeve (20) between split master carrier bearing (15) and the split fitted bearing (19).
4, according to claim 1,2,3 one of them described a kind of turbosupercharger split axial carrying device, it is characterized in that: described split master carrier bearing (15) is provided with the main carrying fuel feeding road (16) of blind hole shape away from a side of gas compressor.
5, a kind of turbosupercharger split axial carrying device according to claim 4, it is characterized in that: described split master carrier bearing (15) is provided with main bearing oil film wedge face (28) away from a side of gas compressor, and main carrying is supported oil film (17) and is arranged between main bearing oil film wedge face (28) and the oil film wedge face supporting sleeve (18) and cooperates in the cavity of formation.
6, a kind of turbosupercharger split axial carrying device according to claim 5, it is characterized in that: described split master carrier bearing (15) is that main bearing does not have oily end face (26) near a side end face of gas compressor end, and this main bearing does not have oily end face (26) and is provided with axial retaining oil groove (25).
7, a kind of turbosupercharger split axial carrying device according to claim 6 is characterized in that: described axial retaining oil groove (25) cooperates the gap that forms 0.15-0.4mm with axle envelope (5).
8, a kind of according to claim 1 or 5 turbosupercharger split axial carrying device, it is characterized in that: described main bearing oil film wedge face (28) is provided with main bearing oil guide slot (30), and main bearing oil guide slot (30) becomes diverging shape along the pressurized machine sense of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202275352U CN201326420Y (en) | 2008-12-18 | 2008-12-18 | Separate coaxial loading device of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202275352U CN201326420Y (en) | 2008-12-18 | 2008-12-18 | Separate coaxial loading device of turbocharger |
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| Publication Number | Publication Date |
|---|---|
| CN201326420Y true CN201326420Y (en) | 2009-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202275352U Expired - Lifetime CN201326420Y (en) | 2008-12-18 | 2008-12-18 | Separate coaxial loading device of turbocharger |
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| Country | Link |
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| CN (1) | CN201326420Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509399B (en) * | 2008-12-18 | 2011-03-09 | 康跃科技股份有限公司 | Split axial carrying device of turbo-charger |
| CN102667199A (en) * | 2009-11-13 | 2012-09-12 | 欧陆汽车有限责任公司 | Axial bearing arrangement for a shaft of a turbocharger |
| CN105965206A (en) * | 2016-05-10 | 2016-09-28 | 重庆江增船舶重工有限公司 | Processing method for collar thrust bearing of turbocharger and grinding tool therefor |
-
2008
- 2008-12-18 CN CNU2008202275352U patent/CN201326420Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509399B (en) * | 2008-12-18 | 2011-03-09 | 康跃科技股份有限公司 | Split axial carrying device of turbo-charger |
| CN102667199A (en) * | 2009-11-13 | 2012-09-12 | 欧陆汽车有限责任公司 | Axial bearing arrangement for a shaft of a turbocharger |
| US20120269624A1 (en) * | 2009-11-13 | 2012-10-25 | Continental Automotive Gmbh | Axial bearing arrangement for a shaft of a turbocharger |
| CN102667199B (en) * | 2009-11-13 | 2015-04-01 | 大陆汽车有限公司 | Turbocharger with a case |
| CN105965206A (en) * | 2016-05-10 | 2016-09-28 | 重庆江增船舶重工有限公司 | Processing method for collar thrust bearing of turbocharger and grinding tool therefor |
| CN105965206B (en) * | 2016-05-10 | 2017-11-07 | 重庆江增船舶重工有限公司 | The processing method and its mill instrument of turbocharger collar thrust bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091014 Effective date of abandoning: 20081218 |