CN107956791A - The miniature ramp platform thrust slide bearing of uniform bearing surface small inclination - Google Patents
The miniature ramp platform thrust slide bearing of uniform bearing surface small inclination Download PDFInfo
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- CN107956791A CN107956791A CN201711179772.6A CN201711179772A CN107956791A CN 107956791 A CN107956791 A CN 107956791A CN 201711179772 A CN201711179772 A CN 201711179772A CN 107956791 A CN107956791 A CN 107956791A
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- 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
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- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention relates to a kind of uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination, including inactive plate and exercise stress；Inactive plate includes flat surface and inclined-plane, and the value range of angle theta is between inactive plate inclined-plane and inactive plate flat surface：10‑5°0.01 ° of≤θ ＜.Bearing lubrication oil film thickness of the present invention is in 1nm magnitudes, so that the physical absorption between lubricating oil film and bearing surface plays a role, in bearing of the present invention, physical absorption between static surface and moving surface and lubricating oil film is strong absorption, the physical adsorption characteristic of inlet region static surface is identical with the physical adsorption characteristic of outlet area static surface, and the physical adsorption characteristic of inlet region moving surface is identical with the physical adsorption characteristic of outlet area moving surface.The bearing capacity of the bearing load carrying capacity bearing more counted than conventional fluid lubrication theory of the present invention is much bigger, and bearing of the present invention has important application in micromachine and precision optical machinery.
Description
Technical field
The present invention relates to field of bearings, a kind of specifically miniature ramp platform thrust of uniformly bearing surface small inclination is slided
Dynamic bearing.
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 bearing is
A kind of very accurate mechanical part, also requires it to have sufficiently large bearing capacity.For the antifriction reached and wear-resisting property, go back
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.At present, 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 border adsorbed film and hydrodynamic effect, for low speed, underloading and inessential occasion；The latter relies on fluid film
Realize lubrication, it is more extensive for important events, application.Fluid lubrication sliding bearing is the main body of sliding bearing, and is divided into 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, by oil lift load, is lubricated by hydraulic oil, and the accuracy of manufacture is high, structure is more complicated, 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, have the advantages that structure compared with it is simple, cost is relatively low, better performances, be a kind of application it is more extensive with
Common sliding bearing.It is divided into hydrldynamic pressure lubrication radial plain bearing and hydrldynamic pressure lubrication thrust slide bearing two again
Kind.The former is used to support radial load, and the latter is used to support axial load.Existing main fluid hydrodynamic lubrication thrust introduced below
Sliding bearing type and its feature.
First, clinoplain segmental bearing, this bearing are as shown in Figure 1.It is relied between the convergence formed between upper and lower two surface
Hydrodynamic effect is realized in relative motion between gap and the two surfaces, so as to fulfill lubrication.This bearing has larger carrying energy
Power, there is preferable antifriction and wear-resisting property.
This bearing is divided into two kinds, and a kind of is the fixed bush segment bearing that upper and lower surface cannot be rotated around fulcrum,
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.
2nd, 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.
3rd, 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.
4th, Rayleigh ladder bearing, this bearing are as shown in Figure 4.Its same spherical bearing of work and lubrication mechanism.Compared to
Above three kinds of bearings, its maximum bearing capacity highest under identical operating mode, than the maximum carrying of clinoplain fixed bush segment bearing
Amount is higher by 28%.
According to conventional fluid lubrication theory [1], traditional bearing shown in Fig. 1-Fig. 4 all relies on the receipts formed between two surfaces of solids
Wedge gap is held back, under moving surface drive, lubricating oil is seen in from the heavy in section of convergent wedge-shaped gap, from its small bore band
Out, so that lubricating oil is squeezed in convergent wedge-shaped gap and then produces oil pressure, lubricating oil film just possesses bearing capacity,
So as to form hydrldynamic pressure lubrication bearing.According to conventional fluid lubrication theory [1], between the diverging wedge shape formed between two surfaces of solids
Hydrldynamic pressure lubrication oil film is not likely to form in gap, at this moment is impossible to form bearing.Because at this time in moving surface band
Under dynamic, the small bore of lubricating oil from diverging wedge gap is seen in, and is brought out from its heavy in section, and such lubricating oil is being sent out
Dissipating would not be squeezed in wedge gap, would not also produce oil pressure, not possess bearing capacity, it is impossible to form lubricating oil film.
The content of the invention
Put down the object of the present invention is to provide a kind of with the uniform miniature inclined-plane of bearing surface small inclination of physical adsorption techniques
Platform thrust slide bearing.The angle of inclination on inclined-plane is more than 0.01 ° in traditional ramp platform thrust slide bearing, and axis of the present invention
The scope for holding the inclination angle theta on middle inclined-plane is 10-5°≤0.01 ° of θ ＜.For inclination angle of inclined plane so small in bearing of the present invention, according to biography
To unite theory of fluid lubrication, the bearing capacity of this bearing is very low, or even close to zero.To overcome this shortcoming, the present invention
Bearing lubrication oil film thickness is in 1nm magnitudes, so that the physical absorption between lubricating oil film and bearing surface plays a role, so that aobvious
Writing increases the bearing capacity of bearing of the present invention；To further improve bearing load carrying capacity of the present invention, in bearing of the present invention, static table
Physical absorption between face and moving surface and lubricating oil film is strong absorption, and the physical adsorption characteristic of inlet region static surface is with going out
The physical adsorption characteristic of mouth region static surface is identical, physical adsorption characteristic and the outlet area moving surface of inlet region moving surface
Physical adsorption characteristic is identical.The large carrying capacity of the bearing load carrying capacity bearing more counted than conventional fluid lubrication theory of the present invention
Much.
The present invention, only with physical adsorption techniques, is achieved that under the conditions of primitive axis bearing structure and geometry is not changed
The miniature ramp platform thrust slide bearing of small inclination with larger bearing capacity, technically, the present invention have it is prominent into
Step and creativeness.Bearing of the present invention has the advantages that easy to manufacture, of simple structure and low cost, bearing capacity is higher.
The present invention technical solution be：
A kind of uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination, such as Fig. 5, including one piece of inactive plate
(1), the working surface of inactive plate (1) includes flat surface (2) and inclined-plane (3), the inclined-plane (3) and static plate of inactive plate (1)
Angle between the flat surface (2) of block (1) is θ, and the value range of θ is：10-5°≤0.01 ° of θ ＜.
The physical adsorption characteristic of flat surface (2) is identical with the physical adsorption characteristic of inclined-plane (3), flat surface (2) and inclined-plane (3)
It is the natural surface of coating surface on inactive plate (1) or inactive plate (1).The present invention separately has one piece to have plane C (6)
Exercise stress (4), the physical adsorption characteristic of the plane C (6) of exercise stress (4) is identical everywhere, and plane C (6) is exercise stress
(4) natural surface of coating surface or exercise stress (4) on.Exercise stress (4) is matched with inactive plate (1), make fortune
The plane C (6) and the flat surface (2) of inactive plate (1) of dynamic tablet (4) are parallel to each other, inactive plate (1) and exercise stress (4)
Between gap in be full of lubricating oil (5), between the plane C (6) of exercise stress (4) and the flat surface (2) of inactive plate (1)
I.e. bearing outlet area lubricating oil (5) film thickness of distance is ho, hoIn 1nm magnitudes.The direction of motion of exercise stress (4) is by quiet
Only flat surface (2) one end of inactive plate (1) is directed toward in inclined-plane (3) one end of plate (1).Lubricating oil (5) and flat surface (2), tiltedly
Physical absorption between face (3) and plane C (6) is strong absorption, and strong absorption here instigates lubricating oil (5) membrane flow to become continuous
Lubricating oil (5) of critical lubricating oil (5) film thickness of media flow not less than 30nm and flat surface (2), inclined-plane (3) and plane C
(6) physical absorption between.Material is thus formed signified a kind of uniformly miniature ramp platform of bearing surface small inclination of the invention to push away
Power sliding bearing.
Further, the flat surface (2) of inactive plate (1) and inclined-plane (3) are coating of titanium dioxide surface, exercise stress
(4) plane C (6) is coating of titanium dioxide surface.
The beneficial effects of the invention are as follows：
The present invention uses physical adsorption techniques, designs a kind of miniature ramp platform thrust slide bearing of small inclination.At this
The inlet region of invention bearing, present invention does not require the inactive plate working surface of bearing and the exercise stress working surface of bearing are tight
Lattice are parallel, but allow have a small tiltangleθ (10 between the two-5°≤0.01 ° of θ ＜)；The presence of tiltangleθ makes this hair
The manufacture of bright bearing becomes to be more prone to, and is unlikely to propose pole to the working surface machining accuracy of the inactive plate of bearing of the present invention
Its harsh requirement, and certain tiltangleθ on the contrary increases the bearing capacity of bearing of the present invention.
Bearing of the present invention is suitable for specific microminiature machinery or precision optical machinery occasion, static using the bearing of uniform properties
Plate working surface, has extremely considerable bearing capacity.This is that traditional bearing cannot be than.Bearing of the present invention has good
Lubricating oil film, can play preferable anti-friction wear-resistant effect, be used as support member on precision optical machinery or microminiature mechanical equipment.
The present invention has the following advantages：
(1) bearing of the present invention is suitable for specifically using small inclination θ (10-5°≤0.01 ° of θ ＜) occasion.
(2) bearing of the present invention has larger bearing capacity, containing good lubricating oil film, has good anti-friction wear-resistant
Energy.
(3) bearing arrangement of the present invention is simple, easy to manufacture, of low cost.
Brief description of the drawings
Fig. 1 is the structure diagram of existing clinoplain segmental bearing；
Fig. 2 is the structure diagram of existing zigzag segmental bearing；
Fig. 3 is the structure diagram of existing ramp platform segmental bearing；
Fig. 4 is the structure diagram of existing Rayleigh ladder bearing；
Fig. 5 is the structural representation of the miniature ramp platform thrust slide bearing of the uniform bearing surface small inclination of the embodiment of the present invention
Figure；
Fig. 6 be the dimensionless pressure (P) in embodiment in bearing of the present invention distribution and its with conventional flow under the same terms
Dimensionless pressure (P in the counted bearing of body lubrication theoryconv) distribution comparison figure；
Fig. 7 is the dimensionless bearing capacity of bearing of the present invention under bearing inclined-plane (3) inclination angle thetas of the present invention different in embodiment
(W) and its dimensionless bearing capacity (W with the counted bearing of conventional fluid lubrication theory under the same termsconv) comparison figure.
Fig. 8 is difference bearing outlet area lubricating oil (5) film thickness h in embodimentoThe dimensionless carrying of lower bearing of the present invention
Measure (W) and its dimensionless bearing capacity (W with the counted bearing of conventional fluid lubrication theory under the same termsconv) comparison
Figure.
Wherein：u：Exercise stress is relative to the movement velocity of inactive plate, w：The load of contact unit length upper bearing (metal) supporting
Lotus, l1：The entrance sector width of the width, that is, bearing on the inclined-plane (3) of inactive plate (1), l2：The flat surface (2) of inactive plate (1)
The outlet sector width of width, that is, bearing, θ：The inclination angle on the inclined-plane (3) of inactive plate (1), hi：Two is interplate at bearing inlets
Gap, ho：The interplate gap in bearing outlet area two, that is, bearing outlet area lubricating oil (5) film thickness.Gap between two plates
In be full of lubricating oil, the plane C (6) of the flat surface (2) of inactive plate (1), inclined-plane (3) and exercise stress (4) is strong oil-wet
The coating surface of (being strong absorption i.e. with the physical absorption of lubricating oil (5)).
In Fig. 5：1- inactive plates, 2- flat surfaces, 3- inclined-planes, 4- exercise stresses, 5- lubricating oil, 6- planes C
Embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment
A kind of uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination, such as Fig. 5, including one piece of inactive plate
(1), the working surface of inactive plate (1) includes flat surface (2) and inclined-plane (3), the inclined-plane (3) and static plate of inactive plate (1)
Angle between the flat surface (2) of block (1) is θ, and the value range of θ is：10-5°≤0.01 ° of θ ＜.The physics of flat surface (2) is inhaled
Attached characteristic is identical with the physical adsorption characteristic of inclined-plane (3), and flat surface (2) and inclined-plane (3) are the coating surfaces on inactive plate (1)
Or the natural surface of inactive plate (1).It is of the invention separately to have one piece of exercise stress (4) with plane C (6), exercise stress (4)
Plane C (6) physical adsorption characteristic it is identical everywhere, plane C (6) is that coating surface on exercise stress (4) or movement are flat
The natural surface of plate (4).Match exercise stress (4) and inactive plate (1), make the plane C (6) of exercise stress (4) with it is static
The flat surface (2) of plate (1) is parallel to each other, and lubricating oil (5) is full of in the gap between inactive plate (1) and exercise stress (4),
The distance between the plane C (6) of exercise stress (4) and the flat surface (2) of inactive plate (1) are bearing outlet area lubricating oil (5)
Film thickness is ho, hoIn 1nm magnitudes.The direction of motion of exercise stress (4) is to be directed toward by inclined-plane (3) one end of inactive plate (1)
Flat surface (2) one end of inactive plate (1).Physical absorption between lubricating oil (5) and flat surface (2), inclined-plane (3) and plane C (6)
It is strong absorption, strong absorption here instigates lubricating oil (5) membrane flow to become critical lubricating oil (5) thickness that continuous media flows
Physical absorption between lubricating oil (5) and flat surface (2), inclined-plane (3) and plane C (6) of the degree not less than 30nm.Material is thus formed
Signified a kind of uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination of the invention.
The bearing capacity of bearing of the present invention is more much bigger than the bearing capacity that conventional fluid lubrication theory calculates.Bearing of the present invention
Suitable for specifically using small inclination θ (10-5°≤0.01 ° of θ ＜) occasion, containing good lubricating oil film, there is good subtract
Rub wear-resisting property.
In embodiment, this kind of uniform miniature ramp platform thrust slide bearing of bearing surface small inclination, by exercise stress (4)
The inactive plate (1) with another piece with inclined-plane (3) and flat surface (2) forms this bearing, and two boards block is by various trade mark steel
It is made, but is not excluded for being made using other materials.This kind of uniform miniature ramp platform thrust slide bearing of bearing surface small inclination,
Exercise stress (4) is relative to movement such as Fig. 5 of inactive plate (1), and inclined-plane (3) one end of inactive plate (1) is as bearing inlets
End, flat surface (2) one end of inactive plate (1) as bearing outlet end, the inclined-plane (3) of inactive plate (1), flat surface (2) and
The plane C (6) of exercise stress (4) is the coating surface of strong oil-wet (being strong absorption i.e. with the physical absorption of lubricating oil (5)).
Fig. 5 provides the structure diagram of embodiment bearing.In Fig. 5, u：Exercise stress (4) is relative to inactive plate (1)
Movement velocity, w：The load of contact unit length upper bearing (metal) supporting, l1：Width, that is, the bearing on the inclined-plane (3) of inactive plate (1)
Entrance sector width, l2：The outlet sector width of width, that is, bearing of the flat surface (2) of inactive plate (1), θ：Inactive plate (1)
The inclination angle on inclined-plane (3), hi：Two interplate gaps, h at bearing inletso：Interplate gap, that is, the bearing in bearing outlet area two
Outlet area lubricating oil (5) film thickness.It is full of lubricating oil (5) in gap between two plates, the flat surface (2) of inactive plate (1),
The plane C (6) of inclined-plane (3) and exercise stress (4) is the painting of strong oil-wet (being strong absorption i.e. with the physical absorption of lubricating oil (5))
Layer surface.
This kind of uniform miniature ramp platform thrust slide bearing of bearing surface small inclination, makes the plane C of exercise stress (4)
(6) flat surface (2) with inactive plate (1) is parallel to each other.Exercise stress (4) is slided with speed u relative to inactive plate (1),
The direction of speed u is by the port of export of the arrival end direction bearing of bearing, such as Fig. 5.
Compared with conventional fluid hydrodynamic lubrication ramp platform thrust slide bearing, the bearing lubrication mechanism that the present invention designs has
Further essential improvement, and use the inclination angle theta (10 of very little-5°≤0.01 ° of θ ＜).It greatly improved with physical adsorption techniques
Bearing load carrying capacity, it is easy to manufacture, it is of low cost, there is good lubrication, antifriction, wear-resisting property, suitable for small inclination θ (10-5°
0.01 ° of≤θ ＜) specific occasion.Therefore, the technical advantage of bearing of the present invention and application value are fairly obvious.
In embodiment, exercise stress (4) and inactive plate (1) they are that steel manufacture, the flat surface (2) of inactive plate (1),
The plane C (6) of inclined-plane (3) and exercise stress (4) is coating surface, and the material of these coating surfaces is (oleophylic) titanium dioxide
Titanium, lubricating oil (5) are domestic No. 30 machine oil, and dynamic viscosity is η=0.01Pas when which works.Lubricating oil (5) and two
There is strong physical absorption between titanium oxide (coating material), the movement velocity of exercise stress (4) is u=0.0001m/s：
(1) when the inclination angle theta on the inclined-plane (3) of bearing is：θ=0.005 °, l1=l2=0.005mm, hoDuring=2.5nm, obtain
Bearing Load Per Unit Length of the present invention be w=2000N/m, counted bearing load carrying capacity of conventional fluid lubrication theory at this time
For wconv=1.4N/m.
(2) when the inclination angle theta on the inclined-plane (3) of bearing is：θ=0.005 °, l1=l2=0.01mm, hoDuring=5.0nm, obtain
Bearing Load Per Unit Length of the present invention be w=200N/m, counted bearing load carrying capacity of conventional fluid lubrication theory at this time
For wconv=1.0N/m.
(3) when the inclination angle theta on the inclined-plane (3) of bearing is：θ=0.005 °, l1=l2=0.015mm, hoDuring=7.5nm, obtain
Bearing Load Per Unit Length of the present invention be w=25N/m, the counted bearing load carrying capacity of conventional fluid lubrication theory is at this time
wconv=0.96N/m.
(4) when the inclination angle theta on the inclined-plane (3) of bearing is：θ=0.001 °, l1=l2=0.004mm, hoDuring=2.0nm, obtain
Bearing Load Per Unit Length of the present invention be w=600N/m, counted bearing load carrying capacity of conventional fluid lubrication theory at this time
For wconv=0.2N/m.
(5) when the inclination angle theta on the inclined-plane (3) of bearing is：θ=1 × 10-4°, l1=l2=0.004mm, hoDuring=2.0nm, obtain
The bearing Load Per Unit Length of the present invention arrived is w=50N/m, at this time the counted bearing load carrying capacity of conventional fluid lubrication theory
For wconv=0.02N/m.
(6) when the inclination angle theta on the inclined-plane (3) of bearing is：θ=1 × 10-50, l1=l2=0.004mm, hoDuring=2.0nm, obtain
The bearing Load Per Unit Length of the present invention arrived is w=6N/m, at this time the counted bearing load carrying capacity of conventional fluid lubrication theory
For wconv=0.003N/m.
Find out from embodiment, bearing capacity axis more counted than conventional fluid lubrication theory under the same terms of bearing of the present invention
It is much larger to hold bearing capacity, particularly when θ values are minimum.This brightly indicate bearing of the present invention outstanding advantages, significantly
Technique effect and significant application value.
The principle of the invention is described as follows：
It is theoretical according to the Interfacial Adsorption established in the past such as Fig. 5, due to bearing surface of the present invention (flat surface (2), inclined-plane (3)
And plane C (6)) physical absorption between lubricating oil (5) is strong absorption, the viscosity of lubricating oil (5) is in bearing (inlet region of the present invention
And outlet area) the more significant increase of middle appearance, the increase of lubricating oil (5) viscosity is very beneficial for the lubrication of bearing of the present invention, aobvious
Increase the bearing capacity of bearing of the present invention with writing.On the other hand, due to bearing outlet area of the present invention lubricating oil (5) film thickness ho
In 1nm magnitudes and 10-5°≤0.01 ° of θ ＜ and bearing surface of the present invention (flat surface (2), inclined-plane (3) and plane C (6)) and profit
Physical absorption between lubricating oil (5) is strong absorption, and lubricating oil (5) is shown strongly in bearing of the present invention (inlet region and outlet area)
Discontinuous transmission effect, this Discontinuous transmission effect makes the lubricating oil (5) in bearing inlets area of the present invention and outlet area
Poiseuille flowings (i.e. pressure gradient flow) are obviously reduced, lubricating oil (5) in bearing inlets area of the present invention
The flow for being obviously reduced the lubricating oil (5) made in inflow bearing of Poiseui11e flowings dramatically increases, and bearing of the present invention goes out
The flow for being obviously reduced the lubricating oil (5) for making outflow bearing of the Poiseui11e flowings of lubricating oil (5) substantially reduces in mouth region,
In such a situa-tion, if lubricating oil (5) film pressure remains unchanged in bearing of the present invention, lubricating oil (5) is in axis of the present invention
The flowing condition of continuity in holding cannot be met, so that lubricating oil (5) is constantly gathered and is subject in bearing of the present invention
Extruding, and then further raise the pressure of lubricating oil (5) film in bearing of the present invention.This is just necessarily required to moisten in bearing of the present invention
The pressure of lubricating oil (5) film further increases, so that the Poiseuille of bearing inlets area of the present invention and outlet area lubricating oil (5)
Flowing (i.e. pressure gradient flow) increases respectively, and then is maintained flowing continuity of the lubricating oil (5) in bearing of the present invention.
That is the strong Discontinuous transmission effect due to lubricating oil (5) in bearing of the present invention, the bearing capacity of bearing of the present invention
Further it is significantly improved.The long and is, due to the strong physical absorption band between bearing surface of the present invention and lubricating oil (5)
The strong Discontinuous transmission effect significantly increased with lubricating oil (5) in bearing of the present invention of the viscosity of the lubricating oil (5) come,
Compared to conventional fluid lubrication theory result of calculation, the bearing capacity of bearing of the present invention is greatly improved.Due to being formed
Lubricating oil film, the friction coefficient of bearing of the present invention is low, abrasion is slight even ignores.Here it is the original of bearing of the present invention
Reason.
When exercise stress (4) and inactive plate (1) be steel manufacture, the flat surface (2) of inactive plate (1), inclined-plane (3)
Plane C (6) with exercise stress (4) is coating surface, and the material of these coating surfaces is the titanium dioxide of oleophylic, lubricating oil
(5) it is domestic No. 30 machine oil, the inclination angle theta on the inclined-plane (3) of bearing is：θ=0.005 °, l1=l2=0.004mm, ho=2.0nm
When, Fig. 6 provides the distribution of the dimensionless pressure (P) in bearing of the present invention and its is calculated with conventional fluid lubrication theory under the same terms
Dimensionless pressure (the P in the bearing obtainedconv) distribution comparison.Herein, P=pho/ (u η), p are the (amount in bearing of the present invention
Guiding principle) (unit is lubricating oil (5) film pressure：Pa), u is the exercise stress (4) of bearing of the present invention relative to the fortune of inactive plate (1)
Dynamic speed, dynamic viscosity when η is lubricating oil (5) work, hoFor bearing outlet area of the present invention lubricating oil (5) film thickness；Pconv=
Pconvho/ (u η), PconvFor by lubricating oil (5) film pressure in the counted embodiment of conventional fluid lubrication theory (Fig. 5) bearing
(unit is：Pa).
As can be seen from Figure 6, the lubricating oil in bearing of the present invention (5) film pressure (P) is somebody's turn to do for conventional fluid lubrication theory is counted
Lubricating oil (5) film pressure (P in bearingconv) more than 1000 times, this illustrates that lubricating oil (5) film pressure obtains in bearing of the present invention
It is greatly improved, the bearing capacity for indicating bearing of the present invention has been correspondingly made available and is greatly improved.
When exercise stress (4) and inactive plate (1) be steel manufacture, the flat surface (2) of inactive plate (1), inclined-plane (3)
Plane C (6) with exercise stress (4) is coating surface, and the material of these coating surfaces is the titanium dioxide of oleophylic, lubricating oil
(5) it is domestic No. 30 machine oil, l1=l2=0.004mm, hoDuring=2.0nm, Fig. 7 provides different bearing inclined-planes (3) of the present invention and inclines
Under the θ of angle the dimensionless bearing capacity (W) of bearing of the present invention and its with the counted bearing of conventional fluid lubrication theory under the same terms
Dimensionless bearing capacity (Wconv) comparison.Herein, W=w/ (u η), w are the load born in bearing contact unit length of the present invention
(the load line density of bearing i.e. of the present invention, unit are lotus：N/m), u is the exercise stress (4) of bearing of the present invention relative to static
The movement velocity of plate (1), η are dynamic viscosity when lubricating oil (5) works；Wconv=wconv/ (u η), wconvFor by conventional flow
(unit is the load born in the contact unit length of the counted embodiment of body lubrication theory (Fig. 5) bearing：N/m).
As can be seen from Figure 7, when 10-5°≤0.01 ° of θ ＜ when, the bearing capacity (W) of bearing of the present invention is conventional flow under the same terms
Bearing capacity (the W of the counted bearing of body lubrication theoryconv) more than 1000 times, this demonstrate obtained compared to conventional lubrication technology
Bearing capacity (Wconv), the bearing capacity of bearing of the present invention is greatly improved.
When exercise stress (4) and inactive plate (1) be steel manufacture, the flat surface (2) of inactive plate (1), inclined-plane (3)
Plane C (6) with exercise stress (4) is coating surface, and the material of these coating surfaces is the titanium dioxide of oleophylic, lubricating oil
(5) it is domestic No. 30 machine oil, l1=l2, ho/(l1+l2)=2 × 10-4, during θ=0.005 °, Fig. 8 provides different bearing outlet areas
Lubricating oil (5) film thickness hoThe dimensionless bearing capacity (W) of lower bearing of the present invention and its with the same terms conventional fluid lubrication manage
By the dimensionless bearing capacity (W of the counted bearingconv) comparison.Herein, W and WconvDefinition respectively with the W in Fig. 7 and
WconvDefinition it is identical.
As can be seen from Figure 8, as bearing outlet area of the present invention lubricating oil (5) film thickness hoDuring in 1nm magnitudes, bearing of the present invention
Bearing capacity (W) than the counted bearing of conventional fluid lubrication theory under the same terms bearing capacity (Wconv) much larger.This table
Understand the extremely significant technique effect of bearing of the present invention and prominent application value.
Claims (5)
1. a kind of uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination, including one piece of inactive plate (1), static
The working surface of plate (1) includes flat surface (2), inclined-plane (3), the inclined-plane (3) of inactive plate (1) and putting down for inactive plate (1)
Angle between table top (2) is θ, separately has one piece of exercise stress (4) with plane C (6), makes exercise stress (4) and static plate
Block (1) matches, and the plane C (6) of exercise stress (4) is parallel to each other with the flat surface (2) of inactive plate (1), inactive plate (1)
Lubricating oil (5), the plane C (6) of exercise stress (4) and putting down for inactive plate (1) are full of in gap between exercise stress (4)
The distance between table top (2) is that bearing outlet area lubricating oil (5) film thickness is h0, the direction of motion of exercise stress (4) is by quiet
Only flat surface (2) one end of inactive plate (1) is directed toward in inclined-plane (3) one end of plate (1), it is characterised in that：The value range of θ
For：10-5°≤0.01 ° of θ ＜, h0In 1nm magnitudes, the physical adsorption characteristic and static plate of the flat surface (2) of inactive plate (1)
The physical adsorption characteristic on the inclined-plane (3) of block (1) is identical, and the physical adsorption characteristic of the plane C (6) of exercise stress (4) is identical everywhere,
Physical absorption between lubricating oil (5) and flat surface (2), inclined-plane (3) and plane C (6) is strong absorption, and strong absorption here is instigated
Lubricating oil (5) membrane flow becomes lubricating oil (5) of critical lubricating oil (5) film thickness of continuous media flowing not less than 30nm with putting down
Physical absorption between table top (2), inclined-plane (3) and plane C (6).
2. the uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination as claimed in claim 1, it is characterised in that：
Flat surface (2) and inclined-plane (3) are the natural surfaces of the coating surface or inactive plate (1) on inactive plate (1).
3. the uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination as claimed in claim 1, it is characterised in that：
Plane C (6) is the natural surface of the coating surface or exercise stress (4) on exercise stress (4).
4. the uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination as claimed in claim 2, it is characterised in that：
The flat surface (2) of inactive plate (1) and inclined-plane (3) are coating of titanium dioxide surface.
5. the uniformly miniature ramp platform thrust slide bearing of bearing surface small inclination as claimed in claim 3, it is characterised in that：
The plane C (6) of exercise stress (4) is coating of titanium dioxide surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711179772.6A CN107956791B (en) | 2017-11-10 | 2017-11-10 | Small-inclination-angle micro inclined plane platform thrust sliding bearing with uniform bearing surface |
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| CN201711179772.6A CN107956791B (en) | 2017-11-10 | 2017-11-10 | Small-inclination-angle micro inclined plane platform thrust sliding bearing with uniform bearing surface |
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| CN107956791B CN107956791B (en) | 2020-07-24 |
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| CN108916213A (en) * | 2018-06-29 | 2018-11-30 | 张美华 | All there is the special-shaped clinoplain fixed bush segment thrust slide bearing of interface sliding at entire static surface |
| CN109139700A (en) * | 2018-09-20 | 2019-01-04 | 张美华 | All there is the special-shaped ramp platform thrust slide bearing of interface sliding at entire static surface |
| CN109139683A (en) * | 2018-09-05 | 2019-01-04 | 张美华 | With the special-shaped ramp platform thrust slide bearing of physical absorption |
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Effective date of registration: 20200528 Address after: 200331 room 45, zone K, 2f, building 1, No. 3424, Zhufeng Road, Liantang Town, Qingpu District, Shanghai Applicant after: SHANGHAI OUBO AUTOMATIC CONTROL TECHNOLOGY EQUIPMENT 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 |
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