CN108591246A - With the special-shaped ladder bearing of interface sliding - Google Patents
With the special-shaped ladder bearing of interface sliding Download PDFInfo
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- CN108591246A CN108591246A CN201711398787.1A CN201711398787A CN108591246A CN 108591246 A CN108591246 A CN 108591246A CN 201711398787 A CN201711398787 A CN 201711398787A CN 108591246 A CN108591246 A CN 108591246A
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- bearing
- plane
- lubricating oil
- inactive plate
- exercise stress
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- 239000010687 lubricating oil Substances 0.000 claims abstract description 95
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 239000003921 oil Substances 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005461 lubrication Methods 0.000 description 30
- 239000012530 fluid Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 210000004209 hair Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
Classifications
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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
- F16C17/12—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
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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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention relates to a kind of special-shaped ladder bearings with interface sliding, including one piece of inactive plate and one piece of exercise stress, inactive plate working surface is step-like surface, the protrusion working surface of exercise stress and inactive plate is mutually parallel, this two interplate gap of bearing inlets area is less than this two interplate gap of bearing outlet area, lubricating oil is full of in the gap of this two plate, the exercise stress direction of motion is to be directed toward bearing outlet area from bearing inlets area.The working surface of bearing inlets area inactive plate is the coating surface for hating oil, remaining working surface of bearing is the surface of oleophylic.Lubricating oil film slides on the working surface of bearing inlets area inactive plate, and lubricating oil film does not slide in the remaining surface of bearing.Bearing of the present invention has certain bearing capacity and lower friction coefficient, has significant antifriction and energy-saving effect, is used as bearing part under specific occasion in mechanical equipment.
Description
Technical field
The present invention relates to field of bearings, specifically a kind of special-shaped ladder bearing with interface 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%.
According to conventional fluid lubrication theory, traditional bearing shown in Fig. 1-Fig. 4 all relies on the convergence formed between two surfaces of solids
Wedge gap, under moving surface drive, lubricating oil is seen in from the big section of convergent wedge-shaped gap, is taken out of from its small bore
Come, to make lubricating oil be squeezed in convergent wedge-shaped gap and then generate oil pressure, lubricating oil film just has bearing capacity, from
And form hydrldynamic pressure lubrication bearing.According to conventional fluid lubrication theory, in the diverging wedge gap formed between two surfaces of solids
It is not likely to form hydrldynamic pressure lubrication oil film, at this moment is impossible to form bearing.Because at this time under moving surface drive,
Lubricating oil is seen in from the small bore of diverging wedge gap, and is brought out from its big section, and such lubricating oil is in diverging wedge
It would not be squeezed in shape gap, would not also generate oil pressure, not have bearing capacity, lubricating oil film cannot be formed.
Invention content
The object of the present invention is to provide a kind of special-shaped ladder bearings with interface sliding.With conventional fluid lubrication theory phase
It is contrary to, forms the gap of diverging between two contact surface of this bearing.With traditional ladder bearing shown in Fig. 4 on the contrary, this bearing inlets
The surface gap in area is less than the surface gap of its outlet area.According to conventional fluid lubrication theory, this bearing should can not be
Vertical, because lubricating oil is seen in from the small bore of diverging gap, and it is brought out from its big section, lubricating oil is such
It is not extruded in gap, cannot also form oil pressure, not have bearing capacity.But if this bearing inlets area it is quiet
Only contact surface is hates oil coating surface to make lubricating oil film in the static of bearing inlets area with weaker physical absorption ability
Sliding is generated in contact surface, lubricating oil film does not slide in the remaining surface of bearing, since lubricating oil film is in this bearing
Sliding on inlet region stationary contact surface flows into the lubricating oil of this bearing inlets area small bore under moving surface drive
Flow is more than the outflow heavy in section flow of lubrication of outlet area instead, so that lubricating oil also can in such diverging gap
It is squeezed and then generates oil pressure, lubricating oil film just has bearing capacity.Thus form the signified special-shaped multi-diameter shaft of the present invention
It holds.
The present invention only uses interface sliding technology, is achieved that with one under the gap for the diverging that traditional bearing is abstained from
Determine the special-shaped ladder bearing of bearing capacity, technically, the present invention has progress outstanding and creativeness.Bearing of the present invention has
Manufacture easy, advantage of simple structure and low cost.
Technical solution of the invention is：
A kind of special-shaped ladder bearing with interface sliding, such as Fig. 5, including one piece of inactive plate (1), inactive plate (1)
Working surface include plane A (2), plane B (3) and cascaded surface (4), plane A (2) and plane B (3) are mutually parallel, cascaded surface
(4) vertical with plane A (2) and plane B (3) respectively, height, that is, step size of cascaded surface (4) is Δ h；The physics of plane A (2)
Characterization of adsorption and the physical adsorption characteristic of plane B (3) differ, and plane A (2) is to hate oil coating surface, and plane B (3) is oleophylic
The oleophylic natural surface of coating surface or inactive plate (1).The present invention separately has one piece of exercise stress with plane C (5)
(6), plane C (5) is the oleophylic coating surface on the oleophylic natural surface or exercise stress (6) of exercise stress (6).Make movement
Tablet (6) is matched with inactive plate (1), and the plane A (2) of the plane C (5) for making exercise stress (6) and inactive plate (1) are mutually flat
Row, is full of lubricating oil (7) in the gap between inactive plate (1) and exercise stress (6), the plane C (5) of exercise stress (6) and
The distance between plane A (2) of inactive plate (1) is that bearing inlets area lubricating oil (7) film thickness is hi, the present invention claims：In this way, lubricating oil (7) film just generates sliding, here, τ on plane A (2)saIt is lubricating oil (7) peace
Interface shear strength between face A (2), u are movement velocity of the exercise stress (6) relative to inactive plate (1), and η is lubricating oil (7)
Dynamic viscosity when work, λh=ho/hi, hoIt is bearing outlet area lubricating oil (7) film thickness.The direction of motion of exercise stress (6)
To be directed toward plane B (3) one end of inactive plate (1) by plane A (2) one end of inactive plate (1).Lubricating oil (7) film is in plane A
(2) sliding is generated on, lubricating oil (7) film does not generate sliding on plane B (3) and plane C (5), and material is thus formed this hairs
The special-shaped ladder bearing of bright meaning.The optimal operating condition of bearing of the present invention is：Here, λh=ho/
hi, l1For the width in width, that is, bearing inlets area of the plane A (2) of inactive plate (1), l2For the plane B (3) of inactive plate (1)
Width, that is, bearing outlet area width；With this condition, this bearing has maximum load-carrying capacity.
Further, the plane A (2) of inactive plate (1) is fluororine-carbon coating surface, and the plane B (3) of inactive plate (1) is
The plane C (5) on coating of titanium dioxide surface, exercise stress (6) is coating of titanium dioxide surface.
The beneficial effects of the invention are as follows：
The present invention uses interface sliding technology, and a kind of special-shaped ladder bearing is designed using surface coating method.The present invention
Bearing is suitable for the occasion that bearing inlets area surface gap is less than bearing outlet area surface gap, this is traditional ladder bearing up to not
It arrives.Bearing of the present invention have certain bearing capacity and lower friction coefficient, have good lubricating oil film, can play compared with
Good antifriction energy-saving effect, is used as bearing part on mechanical equipment.
The present invention has the following advantages：
(1) bearing of the present invention is suitable for the occasion that bearing inlets area surface gap is less than bearing outlet area surface gap.
(2) bearing of the present invention contains good lubricating oil film, has good antifriction energy-saving performance, has certain carrying energy
Power.
(3) 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 structural schematic diagram of the embodiment of the present invention with the special-shaped ladder bearing of interface sliding；
Fig. 6 is lubricating oil (7) film pressure distribution schematic diagram in bearing of the present invention in embodiment；
Fig. 7 is dimensionless lubricating oil (7) film pressure distribution map under different Δ H in bearing of the present invention in embodiment；
Fig. 8 is the dimensionless bearing capacity W figures of bearing of the present invention under difference U values and Δ H values in embodiment；
Fig. 9 is the dimensionless bearing capacity W of bearing of the present invention under different Δ H in embodiment with the change curve of ψ；
Figure 10 is the friction coefficient f at the inactive plate (1) of the bearing in the embodiment of the present invention under different U values and Δ H valuesa
Value figure；
Figure 11 is the friction coefficient f at the exercise stress (6) of the bearing in the embodiment of the present invention under different U values and Δ H valuesb
Value figure.
Wherein, u is movement velocity of the exercise stress relative to inactive plate, and w is the bearing of unit contact length upper bearing (metal)
Load, l1For the width in width, that is, bearing inlets area of the plane A (2) of inactive plate (1), l2For the plane B of inactive plate (1)
(3) width in width, that is, bearing outlet area, Δ h are the step size of height, that is, bearing of cascaded surface (4), hiFor bearing inlets
Area's lubricating oil (7) film thickness, hoFor bearing outlet area lubricating oil (7) film thickness；Lubricating oil is full of in gap between two plates,
Lubricating oil (7) film generates sliding on plane A (2), and lubricating oil (7) film does not generate cunning on plane B (3) and plane C (5)
It moves.
In Fig. 5：1- inactive plates, 2- planes A, 3- plane B, 4- cascaded surface, 5- planes C, 6- exercise stress, 7- lubricating 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 special-shaped ladder bearing with interface sliding, such as Fig. 5, including one piece of inactive plate (1), inactive plate (1)
Working surface include plane A (2), plane B (3) and cascaded surface (4), plane A (2) and plane B (3) are mutually parallel, cascaded surface
(4) vertical with plane A (2) and plane B (3) respectively, height, that is, step size of cascaded surface (4) is Δ h；The physics of plane A (2)
Characterization of adsorption and the physical adsorption characteristic of plane B (3) differ, and plane A (2) is to hate oil coating surface, and plane B (3) is oleophylic
The oleophylic natural surface of coating surface or inactive plate (1).The present invention separately has one piece of exercise stress with plane C (5)
(6), plane C (5) is the oleophylic coating surface on the oleophylic natural surface or exercise stress (6) of exercise stress (6).Make movement
Tablet (6) is matched with inactive plate (1), and the plane A (2) of the plane C (5) for making exercise stress (6) and inactive plate (1) are mutually flat
Row, is full of lubricating oil (7) in the gap between inactive plate (1) and exercise stress (6), the plane C (5) of exercise stress (6) and
The distance between plane A (2) of inactive plate (1) is that bearing inlets area lubricating oil (7) film thickness is hi, the present invention claims：In this way, lubricating oil (7) film just generates sliding, here, τ on plane A (2)saIt is lubricating oil (7) peace
Interface shear strength between face A (2), u are movement velocity of the exercise stress (6) relative to inactive plate (1), and η is lubricating oil (7)
Dynamic viscosity when work, λh=ho/hi, hoIt is bearing outlet area lubricating oil (7) film thickness.The direction of motion of exercise stress (6)
To be directed toward plane B (3) one end of inactive plate (1) by plane A (2) one end of inactive plate (1).Lubricating oil (7) film is in plane A
(2) sliding is generated on, lubricating oil (7) film does not generate sliding on plane B (3) and plane C (5), and material is thus formed this hairs
The special-shaped ladder bearing of bright meaning.The optimal operating condition of bearing of the present invention is：Here, λh=ho/
hi, l1For the width in width, that is, bearing inlets area of the plane A (2) of inactive plate (1), l2For the plane B (3) of inactive plate (1)
Width, that is, bearing outlet area width；With this condition, this bearing has maximum load-carrying capacity.
Bearing of the present invention is suitable for the occasion that bearing inlets area surface gap is less than bearing outlet area surface gap, this is to pass
System ladder bearing is not achieved.Bearing of the present invention has certain bearing capacity and lower friction coefficient, has good profit
Lubricating oil film can play preferable antifriction energy-saving effect, be used as bearing part on mechanical equipment.
In embodiment, this kind uses the special-shaped ladder bearing of interface sliding, by inactive plate (1) and exercise stress (6) group
Cost bearing, two boards block is made of various trade mark steel, but is not excluded for being made using other materials.This kind uses interface sliding
Special-shaped ladder bearing, the distance between the plane C (5) of exercise stress (6) and the plane A (2) of inactive plate (1) be bearing enter
Mouth region lubricating oil (7) film thickness hiIt must satisfy：In this way, lubricating oil (7) film on plane A (2) just
Generate sliding, here, τsaIt is the interface shear strength between lubricating oil (7) and plane A (2), u is exercise stress (6) relative to quiet
The only movement velocity of plate (1), dynamic viscosity when η is lubricating oil (7) work, λh=ho/hi, hoIt is bearing outlet area lubrication
Oily (7) film thickness.Exercise stress (6) is slided with speed u relative to inactive plate (1), and the direction of speed u is by inactive plate
(1) plane B (3) one end of inactive plate (1), such as Fig. 5 are directed toward in plane A (2) one end.Lubricating oil (7) film is on plane A (2)
Sliding is generated, lubricating oil (7) film does not generate sliding on plane B (3) and plane C (5), and plane A (2) is to hate oil coating table
Face, plane B (3) are the oleophylic natural surfaces of oleophylic coating surface or inactive plate (1), and plane C (5) is exercise stress (6)
Oleophylic natural surface or exercise stress (6) on oleophylic coating surface.
Fig. 5 provides the structural schematic diagram of embodiment bearing.In Fig. 5, u is exercise stress (6) relative to inactive plate (1)
Movement velocity, w are the load of unit contact length upper bearing (metal) bearing, l1For width, that is, axis of the plane A (2) of inactive plate (1)
Hold the width of inlet region, l2For the width in width, that is, bearing outlet area of the plane B (3) of inactive plate (1), Δ h is cascaded surface
(4) step size of height, that is, bearing, hiFor bearing inlets area lubricating oil (7) film thickness, hoFor bearing outlet area lubricating oil
(7) film thickness；Lubricating oil (7) film generates sliding on plane A (2), and lubricating oil (7) film is equal on plane B (3) and plane C (5)
Sliding is not generated；Lubricating oil (7) is full of in gap between two plates, plane A (2) is to hate oil coating surface, and plane B (3) is
The oleophylic natural surface of oleophylic coating surface or inactive plate (1), plane C (5) are the oleophylic natural surfaces of exercise stress (6)
Or the oleophylic coating surface on exercise stress (6).
Conventional fluid hydrodynamic lubrication ladder bearing as shown in fig. 4 is compared, and bearing of the present invention has substantial variations in structure,
It breaches the forbidden zone of conventional lubrication technology using the gap dissipated between bearing surface, realizes lubricating oil film lubrication, has one
Fixed bearing capacity and lower friction coefficient.Bearing mnanufacture of the present invention is easy, of low cost, has good lubrication, antifriction, section
Energy performance, is suitable for specific occasion.Therefore, the technical advantage and application value of bearing of the present invention are fairly obvious.
In embodiment, exercise stress (6) and inactive plate (1) are steel manufacture, and the plane A (2) of inactive plate (1) is
The plane B (3) on (hating oil) fluororine-carbon coating surface, inactive plate (1) is (oleophylic) coating of titanium dioxide surface, exercise stress
(6) plane C (5) is (oleophylic) coating of titanium dioxide surface, and lubricating oil (7) is domestic No. 30 machine oil, lubricating oil when work
(7) the interface shear strength τ between plane A (2)saFor 0.01MPa, dynamic viscosity is η=0.01Pa when lubricating oil (7) works
The movement velocity of s, exercise stress (6) are u=10m/s, bearing inlets area lubricating oil (7) film thickness hiIt is 2 μm；Bearing working
When, lubricating oil (7) film slides on plane A (2), and lubricating oil (7) film does not slide on plane B (3) and plane C (5)：
(1) work as l1=5mm, l2=3mm, when the height of cascaded surface (4) is h=0.2 μm of Δ, obtained bearing list of the present invention
Bit length dimension bearing capacity is w=1.53 × 106N/m, the friction coefficient on inactive plate (1) are 0.0008, exercise stress (6)
On friction coefficient be 0.0005.
(2) work as l1=5mm, l2=3mm, when the height of cascaded surface (4) is h=0.4 μm of Δ, obtained bearing list of the present invention
Bit length dimension bearing capacity is w=1.15 × 106N/m, the friction coefficient on inactive plate (1) are 0.001, exercise stress (6)
On friction coefficient be 0.0006.
(3) work as l1=5mm, l2=3mm, when the height of cascaded surface (4) is h=0.6 μm of Δ, obtained bearing list of the present invention
Bit length dimension bearing capacity is w=8.94 × 105N/m, the friction coefficient on inactive plate (1) are 0.0011, exercise stress (6)
On friction coefficient be 0.0007.
(4) work as l1=5mm, l2=3mm, when the height of cascaded surface (4) is h=0.8 μm of Δ, obtained bearing list of the present invention
Bit length dimension bearing capacity is w=6.39 × 105N/m, the friction coefficient on inactive plate (1) are 0.0014, exercise stress (6)
On friction coefficient be 0.0009.
(5) work as l1=5mm, l2=3mm, when the height of cascaded surface (4) is h=1.0 μm of Δ, obtained bearing list of the present invention
Bit length dimension bearing capacity is w=4.48 × 105N/m, the friction coefficient on inactive plate (1) are 0.002, exercise stress (6)
On friction coefficient be 0.0013.
(6) work as l1=5mm, l2=3mm, when the height of cascaded surface (4) is h=1.2 μm of Δ, obtained bearing list of the present invention
Bit length dimension bearing capacity is w=2.56 × 105N/m, the friction coefficient on inactive plate (1) are 0.0026, exercise stress (6)
On friction coefficient be 0.0026.
(7) work as l1=5mm, l2=3mm, when the height of cascaded surface (4) is h=1.4 μm of Δ, obtained bearing list of the present invention
Bit length dimension bearing capacity is w=6.4 × 104N/m, the friction coefficient on inactive plate (1) are 0.0035, exercise stress (6)
On friction coefficient be 0.0035.
Find out from embodiment, bearing of the present invention belongs to a kind of special-shaped ladder bearing, and the bearing surface gap of its inlet region is low
In the bearing surface gap of its outlet area；Bearing of the present invention has certain bearing capacity and lower friction coefficient, has
Good antifriction, energy-efficient performance are applied on mechanical equipment, are competent at specific workplace, solving traditional bearing cannot solve
Certainly the technical issues of.
The principle of the invention is described as follows：
It is theoretical according to the interface sliding established before, in the bearing that the present invention designs, since lubricating oil (7) film is static
It slides and is not slid on plane B (3) and plane C (5) on the plane A (2) of plate (1), such as Fig. 5, even if in bearing inlets
Area's surface gap is less than in the case of bearing outlet area surface gap, in the case where the movement of exercise stress (6) drives, flows into bearing
Lubricating oil (7) flow is more than lubricating oil (7) flow of outflow bearing.In this way, the flow equilibrium condition of the fluid flowing in bearing
It is just broken, constantly accumulation is squeezed to form oil pressure lubricating oil (7) within the bearing.The lubricating oil (7) formed in bearing
Film pressure makes to generate pressure gradient flow (i.e. Poiseuille flowings) in bearing inlets area and outlet area respectively, inlet region and goes out
The pressure gradient flow generated in mouth region respectively reduces lubricating oil (7) flow of inflow bearing, makes the lubricating oil of outflow bearing
(7) flow increases, and lubricating oil (7) total flow of inflow bearing is finally made to be equal to lubricating oil (7) total flow of outflow bearing, to
Maintain the flowing continuity of lubricating oil (7) within the bearing.This is to say, since lubricating oil (7) film is in the flat of inactive plate (1)
Face A slides and is not slid on plane B (3) and plane C (5) on (2), at suitable bearing step size Δ h, the present invention
Lubricating oil (7) film pressure can be necessarily formed in bearing, lubricating oil (7) film pressure of formation makes bearing of the present invention have bearing load
Ability.Since the interface shear strength between the presence and lubricating oil (7) and plane A (2) of lubricating oil (7) film is relatively low, the present invention
Bearing has lower friction coefficient, and bearing surface abrasion is extremely slight even to ignore.Here it is the principles of bearing of the present invention.
Fig. 6 is lubricating oil (7) film pressure distribution schematic diagram in bearing of the present invention in embodiment, and ordinate is lubricating oil
(7) film pressure.
Fig. 7 is provided when α=2.5 × 10-4, in U=10 and different Δ H lower bearings when ψ=0.6 in the embodiment of the present invention
Dimensionless lubricating oil (7) film pressure is distributed.In Fig. 7, α=hi/(l1+l2), ψ=l2/l1, U=u η/(τsahi), Δ H=Δs h/
hi, X=x/ (l1+l2), P=phi/[τsa(l1+l2)], p is lubricating oil (7) film pressure.As can be seen from Figure 7, as Δ H reduces, this
Lubricating oil (7) film pressure in invention bearing constantly increases.
Fig. 8 is provided when α=2.5 × 10-4Bearing under U values different with when ψ=0.6 and Δ H values in the embodiment of the present invention
Dimensionless bearing capacity W.In Fig. 8, identical as in Fig. 7 respectively, the W=wh of definition of α, ψ, U and Δ Hi/[τsa(l1+l2)2].From figure
8 find out, as Δ H reduces, the bearing capacity (W) of bearing of the present invention constantly increases；For given U, excessive Δ H can make this hair
Bright bearing loses bearing capacity, this is reflected well to form the condition of bearing of the present invention and be：(this formula
Rewriting form be：).From Fig. 8 it is also seen that for given Δ H, as U increases, bearing of the present invention is held
Carrying capacity (W) constantly increases, it means that：Interface shear strength τ between lubricating oil (7) and plane A (2)saSmaller (U is bigger),
Sliding of lubricating oil (7) film on plane A (2) is more serious, and bearing of the present invention more can form lubricating oil (7) film pressure, this
Invention bearing just has bigger bearing capacity.This fully shows the special-shaped multi-diameter shaft that meaning of the invention is formed with interface sliding
It holds.
Fig. 9 is provided when α=2.5 × 10-4The dimensionless of bearing under Δ H different with when U=10 in the embodiment of the present invention is held
Carrying capacity W with ψ change curve.In Fig. 9, definition identical as in Fig. 7 respectively, the definition of W and the phase in Fig. 8 of α, ψ, U and Δ H
Together.As can be seen from Figure 9, for given U and Δ H, there are an optimal ψ (=l2/l1) value, the bearing of the present invention under the ψ values
Bearing capacity reaches maximum.
Figure 10 is provided when α=2.5 × 10-4Bearing under U values different with when ψ=0.6 and Δ H values in the embodiment of the present invention
Friction coefficient f at inactive plate (1)aValue.In Figure 10, the definition of α, ψ, U and Δ H are identical as in Fig. 7 respectively.In terms of Figure 10
Go out, the friction co-efficient value at the inactive plate (1) of bearing of the present invention is relatively low, this friction co-efficient value even compares conventional flow
The friction co-efficient value that body lubricates ladder bearing is much lower.This shows that bearing of the present invention has preferable antifriction and energy-saving effect.From figure
10 are also seen that as Δ H increases, the friction co-efficient value (f at the inactive plate (1) of bearing of the present inventiona) increase, and with U's
Increase, the friction co-efficient value (f at the inactive plate (1) of bearing of the present inventiona) reduce.
Figure 11 is provided when α=2.5 × 10-4Bearing under U values different with when ψ=0.6 and Δ H values in the embodiment of the present invention
Friction coefficient f at exercise stress (6)bValue.In Figure 11, the definition of α, ψ, U and Δ H are identical as in Fig. 7 respectively.In terms of Figure 11
Go out, the friction co-efficient value at the exercise stress (6) of bearing of the present invention is relatively low, this friction co-efficient value even compares conventional flow
The friction co-efficient value that body lubricates ladder bearing is much lower.This shows that bearing of the present invention has preferable antifriction and energy-saving effect.From figure
11 are also seen that as Δ H increases, the friction co-efficient value (f at the exercise stress (6) of bearing of the present inventionb) increase, and with U's
Increase, the friction co-efficient value (f at the exercise stress (6) of bearing of the present inventionb) reduce.
Claims (3)
1. a kind of special-shaped ladder bearing with interface sliding, including one piece of inactive plate (1), the worksheet of inactive plate (1)
Face includes plane A (2), plane B (3) and cascaded surface (4), and plane A (2) and plane B (3) are mutually parallel, cascaded surface (4) respectively with
Vertically, height, that is, step size of cascaded surface (4) is Δ h by plane A (2) and plane B (3)；It is another to there is one piece to have plane C's (5)
Exercise stress (6) makes exercise stress (6) be matched with inactive plate (1), makes the plane C (5) and inactive plate of exercise stress (6)
(1) plane A (2) is mutually parallel, and the direction of motion of exercise stress (6) is to be directed toward by plane A (2) one end of inactive plate (1)
Plane B (3) one end of inactive plate (1) is full of lubricating oil (7) in the gap between inactive plate (1) and exercise stress (6),
It is characterized in that：The physical adsorption characteristic of plane A (2) and the physical adsorption characteristic of plane B (3) differ, and plane A (2) is to hate
Oil coating surface, plane B (3) are the oleophylic natural surfaces of oleophylic coating surface or inactive plate (1), and plane C (5) is movement
The oleophylic natural surface or the oleophylic coating surface on exercise stress (6) of tablet (6), lubricating oil (7) film is on plane A (2)
Sliding is generated, lubricating oil (7) film does not generate sliding on plane B (3) and plane C (5)；The plane C (5) of exercise stress (6)
The distance between plane A (2) of inactive plate (1) is that bearing inlets area lubricating oil (7) film thickness is hi, hiMust satisfy with
Lower conditional：
In this way, lubricating oil (7) film just generates sliding, here, τ on plane A (2)saIt is the boundary between lubricating oil (7) and plane A (2)
Face shear strength, u are movement velocity of the exercise stress (6) relative to inactive plate (1), power when η is lubricating oil (7) work
Viscosity, λh=ho/hi, hoIt is bearing outlet area lubricating oil (7) film thickness.
2. using the special-shaped ladder bearing of interface sliding as described in claim 1, it is characterised in that：This optimal work of bearing
Condition is：Here, λh=ho/hi, hiFor bearing inlets area lubricating oil (7) film thickness, hoFor axis
Hold outlet area lubricating oil (7) film thickness, l1For the width in width, that is, bearing inlets area of the plane A (2) of inactive plate (1), l2For
The width in width, that is, bearing outlet area of the plane B (3) of inactive plate (1)；With this condition, this bearing has maximum carry
Ability.
3. using the special-shaped ladder bearing of interface sliding as described in claim 1, it is characterised in that：Inactive plate (1) is put down
Face A (2) is fluororine-carbon coating surface, and the plane B (3) of inactive plate (1) is coating of titanium dioxide surface, and exercise stress (6) is put down
Face C (5) is coating of titanium dioxide surface.
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| CN201711398787.1A CN108591246B (en) | 2017-12-09 | 2017-12-09 | Special-shaped stepped bearing applying interface sliding |
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| CN201711398787.1A CN108591246B (en) | 2017-12-09 | 2017-12-09 | Special-shaped stepped bearing applying interface sliding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030280A (en) * | 2019-04-03 | 2019-07-19 | 张美华 | It is a kind of to prevent the radial plain bearing that oil film slides at axis surface |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102705372A (en) * | 2012-07-05 | 2012-10-03 | 张永斌 | Method for improving line contact hydrodynamic lubrication under small slide-roll ratio |
| CN104791381A (en) * | 2015-04-27 | 2015-07-22 | 张永斌 | Concentric centripetal sliding bearing formed by using interface slippage |
| CN107061501A (en) * | 2017-06-06 | 2017-08-18 | 袁虹娣 | The miniature ladder bearing of abnormity |
| CN107228120A (en) * | 2017-06-19 | 2017-10-03 | 袁虹娣 | New energy-conservation ramp platform thrust slide bearing |
-
2017
- 2017-12-09 CN CN201711398787.1A patent/CN108591246B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102705372A (en) * | 2012-07-05 | 2012-10-03 | 张永斌 | Method for improving line contact hydrodynamic lubrication under small slide-roll ratio |
| CN104791381A (en) * | 2015-04-27 | 2015-07-22 | 张永斌 | Concentric centripetal sliding bearing formed by using interface slippage |
| CN107061501A (en) * | 2017-06-06 | 2017-08-18 | 袁虹娣 | The miniature ladder bearing of abnormity |
| 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 |
|---|---|---|---|---|
| CN110030280A (en) * | 2019-04-03 | 2019-07-19 | 张美华 | It is a kind of to prevent the radial plain bearing that oil film slides at axis surface |
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