CN108591247A - Prevent the ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface - Google Patents
Prevent the ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface Download PDFInfo
- Publication number
- CN108591247A CN108591247A CN201711500708.3A CN201711500708A CN108591247A CN 108591247 A CN108591247 A CN 108591247A CN 201711500708 A CN201711500708 A CN 201711500708A CN 108591247 A CN108591247 A CN 108591247A
- Authority
- CN
- China
- Prior art keywords
- plane
- bearing
- lubricating oil
- plate
- exercise stress
- 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.)
- Granted
Links
Classifications
-
- 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
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
- F16C17/246—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to wear, e.g. sensors for measuring wear
-
- 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
-
- 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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/50—Lubricating properties
-
- 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
- F16C2204/00—Metallic materials; Alloys
- F16C2204/60—Ferrous alloys, e.g. steel alloys
-
- 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
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/30—Coating surfaces
Abstract
The ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface is prevented the present invention relates to a kind of, oleophylic coating is coated on two surface of bearing inlets area and on bearing outlet area moving surface to prevent that lubricating oil film sliding occurs at these bearing surfaces, under specific operating mode, due to preventing the lubricating oil film at these bearing surfaces to slide, bearing of the present invention has much bigger bearing capacity than traditional bearing under identical working condition.Therefore, bearing performance of the present invention is more far better than traditional bearing performance.Bearing of the present invention has the advantages that manufacture is easy, of simple structure and low cost, bearing capacity is high.Bearing of the present invention has important application in mechanical equipment.
Description
Technical field
The present invention relates to field of bearings, specifically one kind prevents at two surface of inlet region and at outlet area moving surface
The ladder bearing of oil film sliding.
Background technology
Bearing is the important mechanical part for supporting axial workpiece.Mainly it is divided to two kinds of sliding bearing and rolling bearing.It is right
There are following main performance requirements in bearing：Support accuracy, support stiffness, low-friction coefficient and wear-resistant.This requires bearings to be
A kind of very accurate mechanical part, also requires it to have sufficiently large bearing capacity.For the antifriction reached and wear-resisting property, also
Need bearing that there is preferable greasy property.It is developed so far, although bearing technology comparative maturity, establishes in traditional lubrication
In theoretical foundation.Currently, rolling bearing and sliding bearing are respectively applied to different occasions, respectively there is its advantage.Due to the present invention relates to
Be sliding bearing, now existing sliding bearing type and technology are summarized as follows：
From lubrication mechanism, sliding bearing is divided into two kinds of mixed film friction sliding bearing and fluid lubrication sliding bearing.The former
Lubrication is realized by boundary adsorbed film and hydrodynamic effect, is used for low speed, underloading and inessential occasion；The latter relies on fluid film
It realizes lubrication, is used for important events, application is more extensive.Fluid lubrication sliding bearing is the main body of sliding bearing, is divided into as stream
Two kinds of body hydrodynamic lubrication sliding bearing and hydrostatic lubrication sliding bearing.Hydrostatic lubrication sliding bearing is by extraneous hydraulic pressure
System fuel feeding leans on oil lift load, is lubricated by hydraulic oil, and the accuracy of manufacture is high, structure is more complex, cost is higher, is used for
It is required that support stiffness is big, support accuracy is high and the important events of large carrying capacity.Hydrldynamic pressure lubrication sliding bearing relies on fluid
Dynamic pressure effect realizes lubrication, has the advantages that structure compared with simple, cost is relatively low, better performances, be a kind of application it is more extensive with
Common sliding bearing.It is divided into as hydrldynamic pressure lubrication radial plain bearing and hydrldynamic pressure lubrication thrust slide bearing two
Kind.The former is for supporting radial load, and the latter is for supporting axial load.Existing main fluid hydrodynamic lubrication thrust introduced below
Sliding bearing type and its feature.
One, clinoplain segmental bearing, this bearing are as shown in Figure 1.It is by between the convergence formed between upper and lower two surface
Hydrodynamic effect is realized in relative motion between gap and the two surfaces, to realize lubrication.This bearing has larger carrying energy
Power has preferable antifriction and wear-resisting property.
This bearing is divided into two kinds, one is upper and lower surface cannot around fulcrum rotate fixed bush segment bearing,
Another kind is the tilting pad bearing that one of surface can be rotated around fulcrum.Under good design, tilting pad bearing is than solid
Determining segmental bearing has the bearing capacity of bigger.
Two, zigzag segmental bearing, this bearing are as shown in Figure 2.Its work and lubrication mechanism is same as above a kind of bearing.
Its bearing capacity is more much lower than a kind of upper bearing under the same terms.
Three, ramp platform segmental bearing, this bearing are as shown in Figure 3.Its work and lubrication mechanism is same as above two kinds of bearings.
Its maximum bearing capacity is higher by 20% than the maximum bearing capacity of clinoplain fixed bush segment bearing under identical operating mode.
Four, Rayleigh ladder bearing, this bearing are as shown in Figure 4.Its same spherical bearing of work and lubrication mechanism.Compared to
Three kinds of front bearing, its maximum bearing capacity highest under identical operating mode, than the maximum carrying of clinoplain fixed bush segment bearing
Amount is higher by 28%.
It is steel bearings under the above-mentioned most of occasions of traditional bearing, the working surface of common steel bearings is steel components
Natural surface, this surface does not have the coating of engineer.Generator, steam turbine, large-size machine, compressor, heavy duty machine tools
The use experience of equal heavy mechanical equipments shows under high-speed overload operating mode that the bearing capacity of actually above-mentioned bearing is without tradition
Theory of fluid lubrication design-calculated is so big, these bearings often cannot remain enough because bearing capacity is inadequate in real work
Thick lubricating oil film, and then lead to the ability of losing the job.It should be noted that conventional fluid lubrication theory is not account for lubrication
This phenomenon of sliding of the oil film at bearing surface；But under high-speed overload operating mode, the shear stress at bearing surface is very big, usually
Beyond the interface shear strength between lubricating oil and bearing surface, and then lead to sliding of the lubricating oil film at bearing surface.It is this
Sliding of the lubricating oil film at bearing natural surface often makes bearing load carrying capacity drastically decline, therefore at this bearing natural surface
Lubricating oil film sliding be very harmful.
Invention content
It is prevented at two surface of inlet region and oil film slides at outlet area moving surface the object of the present invention is to provide a kind of
Ladder bearing.This be it is a kind of with surface coating method on two surface of bearing inlets area and on bearing outlet area moving surface
Coating oleophylic coating is to prevent from occurring at these bearing surfaces the ladder bearing of lubricating oil film sliding.Under specific operating mode, by
In preventing the lubricating oil film at these bearing surfaces to slide, bearing of the present invention has big than traditional bearing under identical working condition
Bearing capacity much.Therefore, bearing performance of the present invention is more far better than traditional bearing performance.
Bearing of the present invention has the advantages that manufacture is easy, of simple structure and low cost, bearing capacity is high.Bearing of the present invention
There is important application in mechanical equipment.
Technical solution of the invention is：
A kind of to prevent the ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface, such as Fig. 5, it is wrapped
One piece of inactive plate (1) is included, the working surface of inactive plate (1) includes plane A (2), plane B (3) and cascaded surface (4), plane A
(2) it is mutually parallel with plane B (3), cascaded surface (4) is vertical with plane A (2) and plane B (3) respectively, and the height of cascaded surface (4) is
Step size is Δ h；The physical adsorption characteristic of plane A (2) and the physical adsorption characteristic of plane B (3) differ, and plane B (3) is
Oleophylic coating surface on inactive plate (1).The present invention separately has one piece of exercise stress with plane C (5) (working surface)
(6), the physical adsorption characteristic of the plane C (5) of exercise stress (6) is identical everywhere, and plane C (5) is the oleophylic on exercise stress (6)
Coating surface, plane C (5) and plane B (3) are same coating surface, interface shear strengths of the plane C (5) between lubricating oil
It is identical as interface shear strengths of the plane B (3) between lubricating oil.So that exercise stress (6) is matched with inactive plate (1), makes movement
The plane C (5) of tablet (6) is mutually parallel with the plane A (2) of inactive plate (1), between inactive plate (1) and exercise stress (6)
Gap in be full of lubricating oil (7), the direction of motion of exercise stress (6) is to be directed toward by plane B (3) one end of inactive plate (1)
Plane A (2) one end of inactive plate (1).Between the plane C (5) of exercise stress (6) and the plane A (2) of inactive plate (1)
Distance i.e. bearing outlet area lubricating oil (7) film thickness is ho, l1For the width of the plane B (3) of inactive plate (1), l2For static plate
The width of the plane A (2) of block (1), definition：ψ=l2/l1, the present invention claims：1≤ψ≤5, ho/(l1+l2)≤5.0×10-5, Δ
h/ho≤ 0.1, and：
Here, τsFor the interface shear strength between plane C (5) and lubricating oil (7), u is exercise stress (6) relative to inactive plate
(1) movement velocity, η are dynamic viscosity when lubricating oil (7) works, λh=1+ Δs h/ho；In this way, lubricating oil (7) film would not be
It is slid on plane B (3) and plane C (5).
Further, plane B (3) and plane C (5) is coating of titanium dioxide surface.
The beneficial effects of the invention are as follows：
The present invention uses surface-coating technology, occurs the axis of lubricating oil film sliding in ladder bearing in certain condition range
It holds and coats oleophylic coating on surface to improve the interface shear strength between these surfaces and lubricating oil, and then prevent lubricating oil film
Sliding on these bearing surfaces.There are bearing of the present invention extremely significant advantageous effects to greatly improve loading ability of bearing
Ability, therefore bearing of the present invention has the advantages that bearing capacity is high, has very important application value.
The present invention has the following advantages：
(1) bearing of the present invention has higher bearing capacity, containing good lubricating oil film, has good antifriction performance.
(2) bearing arrangement of the present invention is simple, and manufacture is easy, of low cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing clinoplain segmental bearing；
Fig. 2 is the structural schematic diagram of existing zigzag segmental bearing；
Fig. 3 is the structural schematic diagram of existing ramp platform segmental bearing；
Fig. 4 is the structural schematic diagram of existing Rayleigh ladder bearing；
Fig. 5 is the multi-diameter shaft that the embodiment of the present invention prevents that at two surface of inlet region and oil film slides at outlet area moving surface
The structural schematic diagram held；
Fig. 6 is bearing dimensionless bearing capacity (W of the present invention under difference ψ values in embodimentconv) and outlet area lubricating oil (7) film
Thickness hoRelational graph.
In Fig. 5：1- inactive plates, 2- planes A, 3- plane B, 4- cascaded surface, 5- planes C, 6- exercise stress, 7- lubrications
Oil.
Specific implementation mode
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment
A kind of to prevent the ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface, such as Fig. 5, it is wrapped
One piece of inactive plate (1) is included, the working surface of inactive plate (1) includes plane A (2), plane B (3) and cascaded surface (4), plane A
(2) it is mutually parallel with plane B (3), cascaded surface (4) is vertical with plane A (2) and plane B (3) respectively, and the height of cascaded surface (4) is
Step size is Δ h；The physical adsorption characteristic of plane A (2) and the physical adsorption characteristic of plane B (3) differ, and plane B (3) is
Oleophylic coating surface on inactive plate (1).The present invention separately has one piece of exercise stress with plane C (5) (working surface)
(6), the physical adsorption characteristic of the plane C (5) of exercise stress (6) is identical everywhere, and plane C (5) is the oleophylic on exercise stress (6)
Coating surface, plane C (5) and plane B (3) are same coating surface, interface shear strengths of the plane C (5) between lubricating oil
It is identical as interface shear strengths of the plane B (3) between lubricating oil.So that exercise stress (6) is matched with inactive plate (1), makes movement
The plane C (5) of tablet (6) is mutually parallel with the plane A (2) of inactive plate (1), between inactive plate (1) and exercise stress (6)
Gap in be full of lubricating oil (7), the direction of motion of exercise stress (6) is to be directed toward by plane B (3) one end of inactive plate (1)
Plane A (2) one end of inactive plate (1).Between the plane C (5) of exercise stress (6) and the plane A (2) of inactive plate (1)
Distance i.e. bearing outlet area lubricating oil (7) film thickness is ho, l1For the width of the plane B (3) of inactive plate (1), l2For static plate
The width of the plane A (2) of block (1), definition：ψ=l2/l1, the present invention claims：1≤ψ≤5, ho/(l1+l2)≤5.0×10-5, Δ
h/ho≤ 0.1, and：
Here, τsFor the interface shear strength between plane C (5) and lubricating oil (7), u is exercise stress (6) relative to inactive plate
(1) movement velocity, η are dynamic viscosity when lubricating oil (7) works, λh=1+ Δs h/ho；In this way, lubricating oil (7) film would not be
It is slid on plane B (3) and plane C (5).It is prevented at two surface of inlet region and outlet area fortune material is thus formed of the invention signified
The ladder bearing of oil film sliding at dynamic surface.
Under specific operating mode, due to preventing the lubricating oil film at bearing surface to slide, this hair under identical working condition
Bright bearing has much bigger bearing capacity than traditional bearing.Therefore, bearing performance of the present invention is good than traditional bearing performance obtains
It is more.Bearing of the present invention has the advantages that manufacture is easy, of simple structure and low cost, bearing capacity is high.
In embodiment, this kind prevents the ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface,
It is made of inactive plate (1) and exercise stress (6), two boards block is made of various trade mark steel, but is not excluded for using other materials
Material is made.This kind prevents the ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface, exercise stress (6)
Relative to movement such as Fig. 5 of inactive plate (1), the plane B (3) of inactive plate (1) and the plane C (5) of exercise stress (6) are
Oleophylic coating surface.
Fig. 5 provides the structural schematic diagram of embodiment bearing.In Fig. 5, u：Exercise stress (6) is relative to inactive plate (1)
Movement velocity, wconv：The load that bearing contact unit length of the present invention is born, l1：The width of the plane B (3) of inactive plate (1),
l2：The width of the plane A (2) of inactive plate (1), Δ h：The step size of height, that is, bearing of cascaded surface (4), hi：Bearing inlets
Area's lubricating oil (7) film thickness, ho：Bearing outlet area lubricating oil (7) film thickness, 1≤ψ≤5, ho/(l1+l2)≤5.0×10-5, Δ
h/ho≤ 0.1, plane B (3) and plane C (5) are oleophylic coating surface, and lubricating oil (7) film is in plane B (3) and plane C (5)
On do not slide.
This kind prevents the ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface, inactive plate
(1) (3) one end plane B is as this bearing inlets end, and (2) one end plane A of inactive plate (1) is as this bearing outlet end.
The plane A (2) of the plane C (5) for making exercise stress (6) and inactive plate (1) are mutually parallel.Exercise stress (6) is opposite with speed u
It is slided in inactive plate (1), the direction of speed u is the outlet end that bearing is directed toward by the arrival end of bearing, such as Fig. 5.In two boards
Lubricating oil (7) is full of in gap between block.
In embodiment, exercise stress (6) and inactive plate (1) are steel manufacture, the plane B (3) of inactive plate (1) and
The plane C (5) of exercise stress (6) is (oleophylic) coating of titanium dioxide surface, and the plane A (2) of inactive plate (1) is static
The natural surface of plate (1), lubricating oil (7) are domestic No. 30 machine oil, and lubricating oil power at an atmospheric pressure and 40 DEG C is viscous
Degree is η=0.03Pas.The movement velocity of exercise stress (6) is u=33.3m/s, and bearing overall width is：l1+l2=35mm, axis
It is 40 DEG C to hold operating temperature, h=0.1 μm of step size Δ, lubricating oil (7) film when bearing of the present invention works at 40 DEG C in embodiment
Do not slid on plane B (3) and plane C (5), and traditional bearing under identical operating condition lubricating oil (7) film in plane B
(3) and on plane C (5) it slides：
(1) work as l1=5.9mm, l2=29.1mm, hoAt=1.0 μm, obtained bearing Load Per Unit Length of the present invention is
wconv=1.15 × 105N/m, traditional bearing Load Per Unit Length is w=5.0 × 10 at this time3N/m。
(2) work as l1=5.9mm, l2=29.1mm, hoAt=1.5 μm, obtained bearing Load Per Unit Length of the present invention is
wconv=4.0 × 104N/m, traditional bearing Load Per Unit Length is w=4.5 × 10 at this time3N/m。
(3) work as l1=5.9mm, l2=29.1mm, hoAt=2.0 μm, obtained bearing Load Per Unit Length of the present invention is
wconv=2.25 × 104N/m, traditional bearing Load Per Unit Length is w=4.0 × 10 at this time3N/m。
(4) work as l1=10mm, l2=25mm, hoAt=1.0 μm, obtained bearing Load Per Unit Length of the present invention is
wconv=1.75 × 105N/m, traditional bearing Load Per Unit Length is w=9.5 × 10 at this time3N/m。
(5) work as l1=10mm, l2=25mm, hoAt=1.5 μm, obtained bearing Load Per Unit Length of the present invention is
wconv=5.8 × 104N/m, traditional bearing Load Per Unit Length is w=8.0 × 10 at this time3N/m。
(6) work as l1=10mm, l2=25mm, hoAt=2.0 μm, obtained bearing Load Per Unit Length of the present invention is
wconv=3.0 × 104N/m, traditional bearing Load Per Unit Length is w=6.5 × 10 at this time3N/m。
Find out from embodiment, under given operating mode, the bearing capacity of bearing of the present invention is held than traditional bearing under the same terms
Carrying capacity is much bigger, and this demonstrate the plane B (3) of bearing of the present invention and plane C (5) are designed as oleophylic coating surface to prevent
The extremely significant beneficial technique effect that lubricating oil (7) film is brought in these surface slidings.
The principle of the invention is described as follows：
Such as Fig. 5, for bearing arrangement form shown in the present invention, if using traditional bearing, the static plate of bearing
The working surface of block and exercise stress is natural surface, for the natural surface of steel components, plain oil such as machine oil with
Interface shear strength between this natural surface is no more than 0.01MPa at an atmospheric pressure and 40 DEG C.In higher motion tablet
As under the exercise stress speed u and bearing load in embodiment under speed u and larger bearing load, for plain oil such as machine
Oil, in the traditional bearing of Fig. 5 structure types, lubricating oil film shear stress absolute value can exercise stress entire working surface (i.e.
Plane C (5)) on and inlet region inactive plate working surface (i.e. plane B (3)) on be all higher than between this two surface and lubricating oil
Interface shear strength, slid on these surfaces so as to cause lubricating oil film.Inlet region lubricating oil film works in exercise stress
Surface (i.e. plane C (5)) and the sliding on inactive plate working surface (i.e. plane B (3)) prevent exercise stress from will moisten
Lubricating oil is fully brought into bearing, is reduced so as to cause the flow for the lubricating oil for entering bearing, and lubricating oil film exists in outlet area
Sliding on exercise stress working surface (i.e. plane C (5)) is so that the flow of lubrication of outflow bearing increases, to maintain lubricating oil
Flowing in bearing is continuous so that the flow of lubrication for flowing into bearing is equal to the flow of lubrication of outflow bearing, in bearing
Lubricating oil film pressure must be reduced accordingly, to respectively reduce the pressure gradient flow of the lubricating oil in bearing inlets area and outlet area
(i.e. Poiseuille flowings), to increase the flow of lubrication for flowing into bearing and the lubrication oil stream for reducing outflow bearing respectively
Amount, finally maintains flow equilibrium of the lubricating oil in bearing.This is to say, the traditional bearing of Fig. 5 structure types is compared with Gao Yun
It is happened at the entire working surface of exercise stress (i.e. plane C (5)) under dynamic tablet speed u and larger bearing load and inlet region is static
Lubricating oil film sliding on plate working surface (i.e. plane B (3)) can be such that the bearing capacity of bearing significantly reduces；Conversely, such as this
Shown in invention, if sliding of the lubricating oil film on plane B (3) and plane C (5) can be prevented using surface-coating technology, that
The bearing capacity of the bearing of Fig. 5 structure types will greatly improve.Here it is the principle of the present invention.
When exercise stress (6) and inactive plate (1) are that steel manufacture, the plane B (3) of inactive plate (1) is (oleophylic
) coating of titanium dioxide surface, inactive plate (1) plane A (2) be inactive plate (1) natural surface, exercise stress (6)
Plane C (5) be (oleophylic) coating of titanium dioxide surface, lubricating oil (7) be domestic No. 30 machine oil, exercise stress (6) fortune
Dynamic speed is u=33.3m/s, bearing overall width is：l1+l2=35mm, bearing operating temperatures are 40 DEG C, step size is Δ h=
At 0.1 μm, Fig. 6 gives under different ψ values bearing dimensionless bearing capacity (W of the present invention in embodimentconv) and outlet area lubricating oil
(7) film thickness hoRelationship, bearing load carrying capacity of the present invention also contrasts with the bearing capacity of traditional bearing under the same terms (W).
In Fig. 6, Wconv=wconv/ (u η), W=w/ (u η), ψ=l2/l1；Here, η is lubricating oil (7) at an atmospheric pressure and 40 DEG C
Dynamic viscosity, η=0.03Pas, l1For the width of the plane B (3) of inactive plate (1), l2For the plane A of inactive plate (1)
(2) width, wconvIt is respectively (dimension) load that bearing and traditional bearing contact unit length of the present invention is born with w.From Fig. 6
Find out, under the same terms, the bearing capacity of bearing of the present invention is more much bigger than the bearing capacity of traditional bearing, and this demonstrate applied using surface
Layer technology prevents the bearing capacity that slides the bearing that makes Fig. 5 structure type of the lubricating oil film on plane B (3) and plane C (5)
It greatly improves, it is shown that the technique effect of highly significant of the present invention.
Claims (2)
1. a kind of ladder bearing prevented at two surface of inlet region and oil film slides at outlet area moving surface, including one piece static
Plate (1), the working surface of inactive plate (1) include plane A (2), plane B (3) and cascaded surface (4), plane A (2) and plane B
(3) it is mutually parallel, cascaded surface (4) is vertical with plane A (2) and plane B (3) respectively, and height, that is, step size of cascaded surface (4) is
Δ h separately has one piece of exercise stress (6) with plane C (5), and exercise stress (6) is made to be matched with inactive plate (1), keeps movement flat
The plane C (5) of plate (6) is mutually parallel with the plane A (2) of inactive plate (1), between inactive plate (1) and exercise stress (6)
Lubricating oil (7) is full of in gap, the direction of motion of exercise stress (6) is quiet by plane B (3) one end direction of inactive plate (1)
Only plane A (2) one end of plate (1), between the plane C (5) of exercise stress (6) and the plane A (2) of inactive plate (1) away from
It is h from i.e. bearing outlet area lubricating oil (7) film thicknesso, l1For the width of the plane B (3) of inactive plate (1), l2For inactive plate
(1) width of plane A (2), definition：ψ=l2/l1, it is characterised in that：1≤ψ≤5, ho/(l1+l2)≤5.0×10-5, Δ h/
hoThe physical adsorption characteristic of the physical adsorption characteristic and plane B (3) of≤0.1, plane A (2) differs, and plane B (3) is static plate
The physical adsorption characteristic of oleophylic coating surface on block (1), the plane C (5) of exercise stress (6) is identical everywhere, and plane C (5) is
Oleophylic coating surface on exercise stress (6), plane C (5) and plane B (3) are same coating surface, plane C (5) and lubrication
Interface shear strength between oily (7) is identical as the interface shear strength between plane B (3) and lubricating oil (7), plane C (5) and lubrication
Interface shear strength τ between oily (7)sIt must satisfy the following conditions formula：
Here, u is movement velocity of the exercise stress (6) relative to inactive plate (1), and η is that power is viscous when lubricating oil (7) works
Degree, λh=1+ Δs h/ho；In this way, lubricating oil (7) film would not slide on plane B (3) and plane C (5).
2. as described in claim 1 prevent the multi-diameter shaft that at two surface of inlet region and oil film slides at outlet area moving surface
It holds, it is characterised in that：Plane B (3) and plane C (5) is coating of titanium dioxide surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500708.3A CN108591247B (en) | 2017-12-28 | 2017-12-28 | Stepped bearing for preventing oil films at two surfaces of inlet area and at moving surface of outlet area from sliding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500708.3A CN108591247B (en) | 2017-12-28 | 2017-12-28 | Stepped bearing for preventing oil films at two surfaces of inlet area and at moving surface of outlet area from sliding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108591247A true CN108591247A (en) | 2018-09-28 |
| CN108591247B CN108591247B (en) | 2020-12-22 |
Family
ID=63633312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711500708.3A Active CN108591247B (en) | 2017-12-28 | 2017-12-28 | Stepped bearing for preventing oil films at two surfaces of inlet area and at moving surface of outlet area from sliding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591247B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883166A (en) * | 2021-09-30 | 2022-01-04 | 浙江工业大学 | Method for improving distribution uniformity of oil film pressure field of hydrostatic bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216068A (en) * | 2008-01-18 | 2008-07-09 | 张永斌 | Thrust bearing applying interface adsorption technology |
| CN101265942A (en) * | 2008-04-21 | 2008-09-17 | 淮海工学院 | Thrust bearing applying interface sliding technology |
| CN101398030A (en) * | 2008-11-14 | 2009-04-01 | 淮海工学院 | Anti friction high bearing capacity micro precision bearing |
| CN104863971A (en) * | 2015-04-27 | 2015-08-26 | 张永斌 | Concentric micro centering slide bearing formed by physical absorption |
| CN107228120A (en) * | 2017-06-19 | 2017-10-03 | 袁虹娣 | New energy-conservation ramp platform thrust slide bearing |
-
2017
- 2017-12-28 CN CN201711500708.3A patent/CN108591247B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216068A (en) * | 2008-01-18 | 2008-07-09 | 张永斌 | Thrust bearing applying interface adsorption technology |
| CN101265942A (en) * | 2008-04-21 | 2008-09-17 | 淮海工学院 | Thrust bearing applying interface sliding technology |
| CN101398030A (en) * | 2008-11-14 | 2009-04-01 | 淮海工学院 | Anti friction high bearing capacity micro precision bearing |
| CN104863971A (en) * | 2015-04-27 | 2015-08-26 | 张永斌 | Concentric micro centering slide bearing formed by physical absorption |
| CN107228120A (en) * | 2017-06-19 | 2017-10-03 | 袁虹娣 | New energy-conservation ramp platform thrust slide bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883166A (en) * | 2021-09-30 | 2022-01-04 | 浙江工业大学 | Method for improving distribution uniformity of oil film pressure field of hydrostatic bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108591247B (en) | 2020-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102606618B (en) | Novel energy-saving tilting-pad thrust slide bearing | |
| CN100549446C (en) | A kind of thrust-bearing that uses interface adsorption technology | |
| CN107228120A (en) | New energy-conservation ramp platform thrust slide bearing | |
| Fillon et al. | Thermohydrodynamic analysis of a worn plain journal bearing | |
| CN107061501A (en) | The miniature ladder bearing of abnormity | |
| CN104791381B (en) | The concentric radial plain bearing formed with interface sliding | |
| Srinivasan | Analysis of static and dynamic load on hydrostatic bearing with variable viscosity and pressure | |
| CN104863971B (en) | Concentric micro centering slide bearing formed by physical absorption | |
| CN104454980B (en) | Energy-saving radial sliding bearing | |
| CN108194498A (en) | With the special-shaped clinoplain fixed bush segment thrust slide bearing of interface sliding | |
| CN108194499A (en) | With the special-shaped ramp platform thrust slide bearing of interface sliding | |
| CN108488222B (en) | Irregular inclined plane fixed tile thrust sliding bearing with interface slippage on whole moving surface and entrance area static surface | |
| CN107989897A (en) | The miniature ladder bearing of the non-homogeneous small ladder of bearing surface | |
| CN108591247A (en) | Prevent the ladder bearing that at two surface of inlet region and oil film slides at outlet area moving surface | |
| CN107956791B (en) | Small-inclination-angle micro inclined plane platform thrust sliding bearing with uniform bearing surface | |
| CN107869514A (en) | With the special-shaped fixed bush segment thrust slide bearing of physical absorption | |
| CN108194500A (en) | Prevent the ladder bearing that at inlet region moving surface and oil film slides at outlet area static surface | |
| Chaudhari et al. | A study of bearing and its types | |
| CN108286566A (en) | Prevent the ladder bearing that at two surface of outlet area and oil film slides at inlet region moving surface | |
| CN108223578A (en) | Prevent the ladder bearing that oil film slides at outlet area static surface | |
| CN108223579A (en) | Prevent the ladder bearing that oil film slides at inlet region moving surface | |
| CN108591246A (en) | With the special-shaped ladder bearing of interface sliding | |
| CN110043568A (en) | The antifriction energy-saving radial plain bearing of oil film sliding at a kind of bearing hole surface | |
| CN109139700A (en) | All there is the special-shaped ramp platform thrust slide bearing of interface sliding at entire static surface | |
| CN109139699A (en) | All there is the special-shaped ramp platform thrust slide bearing of interface sliding at entire moving surface and at inlet region static surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200826 Address after: No. 2-2-1-61, No. 319, Haier Road, Jiangbei District, Chongqing Applicant after: Chongqing Steady Technology Co.,Ltd. Address before: 438000 Huanggang power supply company, Huanggang power supply company, No. 80 Huanggang power supply company, Huangzhou District, Huangzhou District, Hubei Applicant before: Yuan Hongdi |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201126 Address after: 315455 Fangqiao Industrial Park, Yangming street, Yuyao City, Ningbo City, Zhejiang Province Applicant after: Yuyao Shuguang Stainless Steel Bearing Co.,Ltd. Address before: No. 2-2-1-61, No. 319, Haier Road, Jiangbei District, Chongqing Applicant before: Chongqing Steady Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |