CN206386395U - Combination bearing is slided in thrust - Google Patents
Combination bearing is slided in thrust Download PDFInfo
- Publication number
- CN206386395U CN206386395U CN201621342928.9U CN201621342928U CN206386395U CN 206386395 U CN206386395 U CN 206386395U CN 201621342928 U CN201621342928 U CN 201621342928U CN 206386395 U CN206386395 U CN 206386395U
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- thrust
- plane
- oil
- bearing
- radial direction
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- Sliding-Contact Bearings (AREA)
Abstract
Combination bearing is slided in thrust, plain bearing housing bore and positioning hole are provided with thrust bearing body, it is respectively equipped with an end face of thrust bearing body with the main oil storage ditch of main radial direction fuel feed hole, the secondary oil storage ditch of the secondary radial direction fuel feed hole first of band, the secondary oil storage ditch of the secondary radial direction fuel feed hole second of band, the the first arc oil circuit communicated with main oil storage ditch and the first secondary oil storage ditch, the second arc oil circuit is communicated with main oil storage ditch and the second secondary oil storage ditch, first annular oil-recovery tank and four thrust inclined-planes, four the first radial direction oil-recovery tanks are respectively equipped between four thrust inclined-planes being separated by, first radial direction oil-recovery tank is higher than first annular oil-recovery tank, less than thrust inclined-plane.Correspondence is respectively equipped with the second annular oil-recovery tank, four the second radial direction oil-recovery tanks and four thrust inclined-planes on another end face of thrust bearing body, and axial oilhole is respectively equipped with two corresponding thrust inclined-planes, and axial oilhole is communicated with secondary radial direction fuel feed hole.
Description
Technical field
The utility model is related in turbocharger of motor technical field, particularly turbocharger rotor bearing arrangement
Thrust bearing.
Background technology
At present, essentially all diesel engine all employs supercharging technology, the ratio of gasoline engine application supercharging technology
More and more higher, turbocharger becomes the critical component of engine with supercharger pressure charging system.And the rotor bearing of turbocharger
System is its core component, and it determines the reliability and shafting mechanical efficiency of turbocharger.
The rotor-bearing system of turbocharger has three types：Full floating bearing, semifloating bearing and ball bearing.Entirely
Floating bearing efficiency is placed in the middle, good reliability；Semifloating efficiency is minimum；Ball bearing stability is best, efficiency highest, but reliability
Have to be hoisted and finished product is very high.
At present, in the rotor-bearing system of turbocharger, full floating bearing and semifloating bearing are most widely used.
In the rotor-bearing system using full floating bearing, as shown in Figure 5, thrust bearing 17 is typically located at pressure side floating bearing
On the turbine rotor axostylus axostyle 19 of 18 pressure side sides, certain axial length is occupied on turbine rotor axostylus axostyle 19 so that turbine turns
Sub- axostylus axostyle 19, which increases, to be increased, so as to cause whole shafting to become large-sized.And semifloating bearing arrangement is used, it is usually by semifloating
Bearing both ends of the surface are designed to thrust bearing, can suitably reduce the spindle length of turbine rotor so that whole shafting size diminishes,
But semifloating efficiency of bearing is lower than full floating bearing efficiency.
The content of the invention
The purpose of this utility model is to overcome the above-mentioned not enough of prior art and provide a kind of thrust and slide combination bearing.
The technical solution of the utility model is：Combination bearing, including thrust bearing body are slided in thrust, in thrust bearing sheet
Body is provided with the plain bearing housing bore for being used for installing pressure side floating bearing and three are used for thrust slip combination bearing being fixed on
Positioning hole on turbocharger bearing body.
Be respectively equipped with an end face of thrust bearing body main oil storage ditch, the first secondary oil storage ditch, the second secondary oil storage ditch,
First arc oil circuit, the second arc oil circuit, first annular oil-recovery tank, the first thrust inclined-plane, the second thrust inclined-plane, the 3rd thrust are oblique
Face and the 4th thrust inclined-plane, one end of the first arc oil circuit are communicated with main oil storage ditch, the other end and first of the first arc oil circuit
Secondary oil storage ditch is communicated, and one end of the second arc oil circuit is communicated with main oil storage ditch, the other end of the second arc oil circuit and the second secondary storage
Oil duct is communicated.
Provided with the main radial direction fuel feed hole communicated with plain bearing housing bore in main oil storage ditch, it is provided with and cunning in the first secondary oil storage ditch
It is secondary provided with second communicated with plain bearing housing bore in the first secondary radial direction fuel feed hole that moving axis bearing hole is communicated, the second secondary oil storage ditch
Radial direction fuel feed hole.
First thrust inclined-plane, the second thrust inclined-plane, the 3rd thrust inclined-plane and the 4th thrust inclined-plane are around plain bearing housing
Hole is uniformly distributed, and four the first radial direction oil-recovery tanks, the first radial direction oil-recovery tank are respectively equipped between four thrust inclined-planes being separated by
Higher than first annular oil-recovery tank, less than thrust inclined-plane.
Correspondence is respectively equipped with the second annular oil-recovery tank, four the second radial directions and returned on another end face of thrust bearing body
Oil groove and the 5th thrust inclined-plane, the 6th thrust inclined-plane, the 7th thrust inclined-plane, the 8th thrust inclined-plane, on the first thrust inclined-plane and
Seven thrust inclined-planes are provided with the second axial oilhole, and the second axial oilhole is communicated with the second secondary radial direction fuel feed hole, oblique in the 3rd thrust
Face is with the 5th thrust inclined-plane provided with the first axial oilhole, and the first axial oilhole is communicated with the first secondary radial direction fuel feed hole.
Pacify timing, the inner ring of pressure side floating bearing is arranged on turbine rotor axostylus axostyle in turbocharger rotor bearing arrangement
On, thrust is slided combination bearing and is fixed on by positioning hole thereon on turbocharger bearing body, is used as pressure side floating bearing
Bearing block, the outer ring of pressure side floating bearing is arranged in plain bearing housing bore.
During work, lubricating oil enters main oil storage ditch from the fuel feed hole on bearing body, then is entered from main oil storage ditch by main radial direction
Oilhole, the first secondary radial direction fuel feed hole and the second secondary radial direction fuel feed hole are lubricated to pressure side floating bearing, into the first axial oil
The lubricating oil of hole and the second axial oilhole is lubricated to the thrust inclined-plane on two end faces, by thrust bearing by dynamic pressure thrust shaft
Hold and become static pressure thrust bearing.To ensure the pressure side floating bearing in plain bearing housing bore and the thrust on two end faces
Inclined-plane can obtain sufficient lubrication, prevent oil temperature from rising too high.Besides, into the profit of the first axial oilhole and the second axial oilhole
Thrust bearing is also become sound thrust bearing by lubricating oil by hydrodynamic thrust bearing, improves turbocharger rotor bearing arrangement
Mechanical efficiency.
The utility model has following features compared with prior art：
1st, combination bearing is slided in the thrust that the utility model is provided and pressure side floating bearing is combined, and shortens turbine
The axial length of rotor shaft so that turbocharger rotor bearing arrangement parts are compacter, reduces shafting size, drop
The low friction loss of shafting, improves shafting mechanical efficiency.
2nd, thrust slides combination bearing and plays a part of axially and radially bearing simultaneously, and fuel feeding is in same direction, and thrust
Pressure side floating bearing lubrication can be entered by sliding the lubricating oil of combination bearing outlet, while pressure side floating bearing outlet lubricating oil can
To be lubricated into thrust surface, so both need total flow of lubrication to reduce, and reduce loss, further increase axle
The efficiency of system.
Detailed construction of the present utility model is further described below in conjunction with the drawings and specific embodiments.
Brief description of the drawings
Accompanying drawing 1 slides combined bearing structure schematic diagram for the thrust that the utility model is provided；
Accompanying drawing 2 is the rearview of accompanying drawing 1；
Accompanying drawing 3 is the A-A sectional views of accompanying drawing 1；
Accompanying drawing 4 is the B-B sectional views of accompanying drawing 1；
Accompanying drawing 5 is existing thrust bearing installation diagram in rotor-bearing system；
Accompanying drawing 6 slides combination bearing installation diagram in rotor-bearing system for the thrust that the utility model is provided.
Embodiment
Combination bearing, including thrust bearing body 1 are slided in thrust, are provided with thrust bearing body 1 and are used for installing pressure side
The plain bearing housing bore 3 of floating bearing and three are used for thrust slip combination bearing being fixed on turbocharger bearing body 20
Positioning hole 9.
The secondary storage of the secondary oil storage ditch 12, second of main oil storage ditch 5, first is respectively equipped with an end face of thrust bearing body 1
Oil duct 13, the first arc oil circuit 4, the second arc oil circuit 16, first annular oil-recovery tank 6-1, the first thrust inclined-plane 7-1, second are stopped
Push away inclined-plane 7-2, the 3rd thrust inclined-plane 7-3 and the 4th thrust inclined-plane 7-4, one end of the first arc oil circuit 4 and the main phase of oil storage ditch 5
Logical, the other end of the first arc oil circuit 4 is communicated with the first secondary oil storage ditch 12, one end of the second arc oil circuit 16 and main oil storage ditch 5
Communicate, the other end of the second arc oil circuit 16 is communicated with the second secondary oil storage ditch 13.
Provided with the main radial direction fuel feed hole 2 communicated with plain bearing housing bore 3 in main oil storage ditch 5, set in the first secondary oil storage ditch 12
Have in the secondary radial direction fuel feed hole 15 of first communicated with plain bearing housing bore 3, the second secondary oil storage ditch 13 and be provided with and plain bearing housing bore 3
The the second secondary radial direction fuel feed hole 11 communicated.
First thrust inclined-plane 7-1, the second thrust inclined-plane 7-2, the 3rd thrust inclined-plane 7-3 and the 4th thrust inclined-plane 7-4 are surrounded
Plain bearing housing bore 3 to be uniformly distributed, four the first radial direction oil-recovery tank 8- are respectively equipped between four thrust inclined-planes being separated by
1, the first radial direction oil-recovery tank 8-1 are higher than first annular oil-recovery tank 6-1, less than thrust inclined-plane.
Correspondence is respectively equipped with the second annular oil-recovery tank 6-2, four the second footpaths on another end face of thrust bearing body 1
To oil-recovery tank 8-2 and the 5th thrust inclined-plane 7-5, the 6th thrust inclined-plane 7-6, the 7th thrust inclined-plane 7-7, the 8th thrust inclined-plane 7-8,
Provided with the second axial oilhole 10 on the first thrust inclined-plane 7-1 and the 7th thrust inclined-plane 7-7, the second axial oilhole 10 and second is secondary
Radial direction fuel feed hole 11 is communicated, provided with the first axial oilhole 14, first on the 3rd thrust inclined-plane 7-3 and the 5th thrust inclined-plane 7-5
Axial oilhole 14 is communicated with the first secondary radial direction fuel feed hole 15.
Pacify timing, the inner ring of pressure side floating bearing 18 is arranged on turbine rotor axostylus axostyle in turbocharger rotor bearing arrangement
On 19, thrust is slided combination bearing 21 and is fixed on by positioning hole 9 thereon on turbocharger bearing body 20, floating as pressure side
The bearing block of dynamic bearing 18, the outer ring of pressure side floating bearing 18 is arranged in plain bearing housing bore 3.
During work, lubricating oil enters main oil storage ditch 5 from the fuel feed hole 20-1 on bearing body 20, then passes through from main oil storage ditch 5
The secondary radial direction fuel feed hole 11 of the main secondary radial direction fuel feed hole 15 and second of radial direction fuel feed hole 2, first is lubricated to pressure side floating bearing 18,
Lubricating oil into the first axial axial oilhole 10 of oilhole 14 and second is lubricated to the thrust inclined-plane on two end faces, by only
Thrust bearing becomes static pressure thrust bearing by hydrodynamic thrust bearing.To ensure the pressure side floating axle being arranged in plain bearing housing bore 3
The thrust inclined-plane held on 18 and two end faces can obtain sufficient lubrication, prevent oil temperature from rising too high.Besides, into first axially
Thrust bearing is also become sound thrust bearing by the lubricating oil of the axial oilhole 10 of oilhole 14 and second by hydrodynamic thrust bearing, is improved
The mechanical efficiency of turbocharger rotor bearing arrangement.
Claims (1)
1. combination bearing is slided in thrust, it is characterized in that：Including thrust bearing body, it is provided with thrust bearing body and is used for installing
The plain bearing housing bore of pressure side floating bearing and three are used for thrust slip combination bearing being fixed on turbocharger bearing body
On positioning hole；
Main oil storage ditch, the first secondary oil storage ditch, the second secondary oil storage ditch, first are respectively equipped with an end face of thrust bearing body
Arc oil circuit, the second arc oil circuit, first annular oil-recovery tank, the first thrust inclined-plane, the second thrust inclined-plane, the 3rd thrust inclined-plane and
4th thrust inclined-plane, one end of the first arc oil circuit is communicated with main oil storage ditch, the other end of the first arc oil circuit and the first secondary storage
Oil duct is communicated, and one end of the second arc oil circuit is communicated with main oil storage ditch, the other end of the second arc oil circuit and the second secondary oil storage ditch
Communicate；
Provided with the main radial direction fuel feed hole communicated with plain bearing housing bore in main oil storage ditch, it is provided with and sliding axle in the first secondary oil storage ditch
It is secondary radially provided with second communicated with plain bearing housing bore in the first secondary radial direction fuel feed hole that bearing hole is communicated, the second secondary oil storage ditch
Fuel feed hole；
First thrust inclined-plane, the second thrust inclined-plane, the 3rd thrust inclined-plane and the 4th thrust inclined-plane are equal around plain bearing housing bore
Even distribution, is respectively equipped with four the first radial direction oil-recovery tanks between four thrust inclined-planes being separated by, and the first radial direction oil-recovery tank is higher than
First annular oil-recovery tank, less than thrust inclined-plane；
Correspondence is respectively equipped with the second annular oil-recovery tank, four the second radial direction oil-recovery tanks on another end face of thrust bearing body
And the 5th thrust inclined-plane, the 6th thrust inclined-plane, the 7th thrust inclined-plane, the 8th thrust inclined-plane, stop on the first thrust inclined-plane with the 7th
Inclined-plane is pushed away provided with the second axial oilhole, the second axial oilhole is communicated with the second secondary radial direction fuel feed hole, on the 3rd thrust inclined-plane and
5th thrust inclined-plane is communicated provided with the first axial oilhole, the first axial oilhole with the first secondary radial direction fuel feed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342928.9U CN206386395U (en) | 2016-12-08 | 2016-12-08 | Combination bearing is slided in thrust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342928.9U CN206386395U (en) | 2016-12-08 | 2016-12-08 | Combination bearing is slided in thrust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386395U true CN206386395U (en) | 2017-08-08 |
Family
ID=59489379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621342928.9U Active CN206386395U (en) | 2016-12-08 | 2016-12-08 | Combination bearing is slided in thrust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386395U (en) |
-
2016
- 2016-12-08 CN CN201621342928.9U patent/CN206386395U/en active Active
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