CN102312923A - Sliding bearing member, sliding bearing and be used to make the method for sliding bearing member - Google Patents
Sliding bearing member, sliding bearing and be used to make the method for sliding bearing member Download PDFInfo
- Publication number
- CN102312923A CN102312923A CN2011101581018A CN201110158101A CN102312923A CN 102312923 A CN102312923 A CN 102312923A CN 2011101581018 A CN2011101581018 A CN 2011101581018A CN 201110158101 A CN201110158101 A CN 201110158101A CN 102312923 A CN102312923 A CN 102312923A
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- China
- Prior art keywords
- sliding
- sliding bearing
- bearing member
- mats
- supporting structure
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- 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.)
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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
- 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
- F16C33/20—Sliding surface consisting mainly of plastics
- F16C33/201—Composition of the plastic
Abstract
The present invention relates to a kind of sliding bearing member with slip surface (5) of processing by sliding material.Said sliding material has the matrix of being made up of polyphthalamide, the high hardness graphite fiber of at least 10% weight content and the teflon of at least 10% weight content.
Description
Technical field
The present invention relates to a kind of sliding bearing member.In addition, the invention still further relates to a kind of sliding bearing and a kind of method that is used to make this sliding bearing member with this sliding bearing member.
Background technique
More known sliding bearing member and sliding bearings in multiple form of implementation.These sliding bearing members especially can have the slip surface that is made up of the sliding material based on plastics.Sliding material can also contain lamination coating except containing plastics, for example glass fibre, mineral fibre or graphite fiber, and to improve the mechanical property of sliding material, for example its crushing resistance, deformation resistance or the like and the temperature characteristic of improving sliding material.Cheap glass fibre uses extensively especially.Yet, when using glass fibre, exist glass fibre especially the fiber end through its cusped edge cause the danger of the fitting surface that heavy wear and damage and sliding material contact slidably.In addition, in the time of outside glass fibre is exposed to, the plastics of this sliding material also can be impaired.This two aspect in addition when making with lubricator, also can cause wear rate to raise and therefore cause sliding bearing especially when higher pressure loading and/or higher speed operational efficiency reduce.
In addition, known these contain additive, like the sliding material of teflon, graphite, molybdenum sulfonium etc., to improve this sliding capability.
For example by the known a kind of bearing sleeve that is used for the rotatably support axle journal of DE 202004006818U1, this bearing sleeve has the block plate of processing by based on the plastics of polyhenylene sulfonium and polyphthalamide.Add graphite fiber or another kind of lamination coating and teflon or other additive can for these plastics.
Summary of the invention
Technical problem to be solved by this invention is to constitute a kind of sliding bearing member or sliding bearing like this, even make it in one period long service time, have good sliding properties and at high temperature also have enough bearing values.
This technical problem is through a kind of sliding bearing member, a kind of sliding bearing and a kind of method solution that is used to make this sliding bearing member.Has the slip surface of processing by sliding material by sliding bearing member of the present invention.This sliding material has the matrix of being made up of polyphthalamide, the high hardness graphite fiber of at least 10% weight content and the teflon of at least 10% weight content.
By viewpoint of the present invention, notion " high hardness graphite fiber " comprises high-modulus (high modulus, HM) graphite fiber and be also referred to as ultra high modulus (ultra high modulus, the UHM) graphite fiber of the graphite fiber of ultrahigh hardness sometimes.The graphite fiber of high hardness can have the Young's modulus of 300GPa at least by the present invention.Fracture elongation can especially be positioned at 0.5% scope for below 1%.Intensity can be 2GPa at least.
Mode with surprising shows, can realize obviously the graphite fiber than other kind through the high hardness graphite fiber, for example high-strength carbon fiber (high tenacity, HT) higher life-span.The graphite fiber of high hardness more is prone to cracked than high-strength carbon fiber and has another kind of wear-resisting property.This cause the sliding bearing member in the introducing stage with the fitting surface zone of sliding bearing member sliding contact in form one deck and fixedly adhere to and transmission film stable, that form by teflon, that be embedded with some graphite layer with favourable frictional behavior.This transmission film makes the slip surface wearing and tearing still less and therefore cause the sliding bearing life of components to improve.Therefore, the invention has the advantages that this sliding bearing has long working life.
Another advantage of the present invention is that the sliding bearing member has good sliding properties.This especially also is applicable in the work that does not have under the situation of oiling agent.In addition, advantageously, the sliding bearing member also has enough bearing values when higher temperature.Sliding material especially can be designed for the operating temperature less than at least 90 degrees centigrade.
Preferred sliding material has the high hardness graphite fiber of at least 20% weight content.Sliding material contains the high hardness graphite fiber of 60% weight content at most.Sliding material contains the teflon of 30% weight content at most.In addition, sliding material can contain the carbon black of at least 1% weight content.
Slide member can have at least one sliding mats and a supporting structure of being made up of sliding material, the mutual mechanical connection of this sliding mats and supporting structure.Can higher mechanical stability be combined with good sliding properties thus.Supporting structure for example can be by a kind of steel, rolling bearing steel especially, and for example 100Cr6 processes.But supporting structure also can be made of plastics.
Sliding mats can be designed to an independent member that is fixed on the supporting structure.Sliding mats especially removably is fixed on the supporting structure.This allows for example when these sliding mats wearing and tearing or damage, to have no to change sliding mats difficultly.
Likewise sliding mats also can be designed to one deck and be coated in the coating on the supporting structure.Can in the whole surface range of sliding mats, between sliding mats and bearing support, form very closely by this way and connect.
In addition, sliding mats and supporting structure can be made up of sliding material integratedly.This makes the sliding bearing member especially effectively with at an easy rate to make.
In addition, the invention still further relates to a kind of sliding bearing that has by sliding bearing member of the present invention.This sliding bearing has the fitting surface with the slip surface sliding contact of sliding bearing member.
This fitting surface can be processed by the another kind of material that is different from sliding material.Especially fitting surface can be formed from steel.Rolling bearing steel, especially 100Cr6 steel can be used as this steel.This steel can harden in the zone of fitting surface at least.Favourable sliding properties and long life-span can realized and have to the sliding bearing of design at an easy rate like this.Except steel, can also use a kind of composition to be different from the plastics of sliding material composition.
Sliding bearing can be designed to the dry type bearing without lubricant oil work.This advantageously need not consider to be used for the providing of oiling agent, dosage and renewal expends again.Another advantage is, it can not make the lubricant contamination that the surrounding environment of sliding bearing is flowed out.This is for example significant when in food industry, using this sliding bearing.
By in the sliding bearing of the present invention, in the working state of sliding bearing, accumulate on the fitting surface at least a component portion of sliding material.This composition can be a carbon.Especially can gather the carbon of graphite form.
Can be designed to radial bearing, especially slide bushing by sliding bearing of the present invention.Same sliding bearing can be designed to thrust bearing.In addition, sliding axle is to being designed to joint shaft bearing, especially radially joint shaft bearing.
The invention still further relates to a kind of method that is used to make the sliding bearing member in addition.In pressing method of the present invention, slip surface is made up of sliding material, and this sliding material has the matrix that is made up of polyphthalamide, the high hardness graphite fiber of at least 10% weight content and the teflon of at least 10% weight content.This slip surface can form in injection moulding.At this, slip surface can be ejected on the supporting structure of sliding bearing member through sliding material and form.Equally also can in Shooting Technique, constitute one deck as the sliding mats and the sliding mats of member are fixed on the supporting structure of sliding bearing member subsequently separately by sliding material.
Description of drawings
Followingly further set forth the present invention according to embodiment shown in the drawings.In the accompanying drawings:
Fig. 1 is the schematic cross sectional view by an embodiment of the sliding bearing of the present invention's design; And
Fig. 2 is the schematic cross sectional view by another embodiment of sliding bearing of the present invention.
Embodiment
Fig. 1 illustrates the schematic cross sectional view by an embodiment of the sliding bearing of the present invention's design.This sliding bearing is designed to radial bearing and has design cylindrical outer ring 1 and inner ring 2 respectively.This outer ring 1 has a columniform sliding mats 3, and this sliding mats 3 is connected with columniform supporting structure 4 regularly.In an illustrated embodiment, sliding mats 3 is designed to one deck and for example in pressure injection-moulded technology, is coated to the coating on the supporting structure 4.But sliding mats 3 equally also possibly be designed to an independent member and stick together or be threaded or otherwise be fixed on the supporting structure 4 with supporting structure 4.In addition, have this possibility, that is, sliding mats 3 constitutes with supporting structure 4 integral types and is processed by same material.The inner peripheral surface of sliding mats 3 is designed to a slip surface 5.
Sliding bearing shown in Fig. 1 also can be modified to, and does not have inner ring 2.In this case, the slip surface 5 of sliding mats 3 for example with the axle sliding contact.
In the working state of sliding bearing shown in Figure 1, that in this form of implementation, be also referred to as slide bushing, inner ring 1 is implemented relative rotary motion and/or straight line motion with outer ring 2.In a kind of suitable material was selected, sliding bearing can be without working lubricant.Sliding bearing especially has following material:
The supporting structure 4 of outer ring 1 especially is made of metal by the material of dimensionally stable.Supporting structure 4 for example can be formed from steel.At this, especially can the steel of the above-mentioned type be used for inner ring 2.But also can use a kind of plastics with enough mechanical stabilities.
Sliding mats 3 has a good sliding properties by a kind of, and the sliding material of especially less friction factor is processed.Sliding material especially is made up of plastic composite, and this plastic composite has matrix, the high hardness graphite fiber of 10% to 60% weight content and the polytetrafluoroethylene (PTFE) of 10% to 30% weight content that is made up of polyphthalamide (PPA).The reference variable of graphite fiber and teflon weight content is respectively polyphthalamide-matrix.Selectively, sliding material can contain the carbon black of at least 1% weight content.
By viewpoint of the present invention, notion " graphite fiber of high hardness " be included into high-modulus (high modulus, HM) graphite fiber and ultra high modulus (ultra high modulus, UHM), be also referred to as the graphite fiber of ultrahigh hardness sometimes.The graphite fiber of high hardness can have the Young's modulus of 300GPa at least by viewpoint of the present invention.Fracture elongation can be for below 1% and especially in 0.5% scope.Intensity can be 2GPa at least.
Polyphthalamide has about 120 degrees centigrade glass transition temperature.In view of the above, the sliding mats 3 that is made up of this a kind of sliding material especially uses in less than at least 90 degrees centigrade operating temperature being higher than 70 degrees centigrade.In addition, the sliding mats 3 that is made up of this a kind of sliding material has high compression strength, and therefore, the sliding bearing with this sliding mats 3 can bear the dynamic pressure load of 100MPa at least.Through this sliding material, do not having to realize friction factor under the situation of oiling agent less than 0.02.In addition, can know, can realize than the obvious longer life-span of the similar material that passes through similar component through sliding material by table 1.
Table 1
Table 1 illustrates a series of tests, wherein, calculates the wear extent of sliding mats 3 respectively for different sliding materials.In dry-running, promptly do not having under the situation of oiling agent, when the load of unit area is 100N/mm
2And when being 0.02m/s, the relative velocity between slip surface 5 and the fitting surface 6 carries out all tests through the kinds of bearings shown in Fig. 2.In case these tests stopped respectively when the wear extent of sliding mats 3 reached 0.30mm.Stopping respectively the sliding stroke of process up to test all lists in this table.
In test 1a and 1b, use respectively by sliding material of the present invention, that have identical component, wherein, the content of high hardness graphite fiber is 30% weight content, the content of teflon is 20% weight content.As sliding stroke up to wear limit, in test 1a, obtain 34.5km, in test 1b, be 32.3km.
In test 2a and 2b, the sliding material of teflon that contains high-strength carbon fiber and 15% weight content of 30% weight content uses on polyphthalamide-matrix respectively.Therefore, the content that has been to use another kind of graphite fiber and teflon with the difference of test 1a and 1b still less.Sliding stroke up to wear limit is 2.1km in test 2a, in test 2b, is 1.9km.Therefore, under two kinds of situation, realize than obvious shorter sliding stroke in test 1a and 1b.In view of the above, the wearing and tearing of sliding mats 3 in test 1a and 1b than testing among 2a and the 2b obviously still less.
In test 3, the sliding material of teflon that contains glass fibre and 20% weight content of 35% weight content uses on polyphthalamide-matrix.Therefore, the difference with test 1a and 1b is that fibre content is slightly high and replace graphite fiber to use glass fibre.Sliding stroke up to wear limit is 9km in test 3.This value is starkly lower than the value of test 1a and 1b, and therefore, the wearing and tearing of sliding mats 3 are significantly less than the wearing and tearing of sliding mats 3 in test 3 in test 1a and 1b.
The different polishing machine of the sliding material of listing in the table 1 can be explained by following mode:
In test 1a and 1b, in the introducing stage, that is, be right after the wearing and tearing of graphite fiber on fitting surface 6 of after on-test, passing through sliding mats 3 and combine to form a transmission film with teflon.This transmission film has very favorable frictional behavior, so that reduce the wearing and tearing of sliding mats.In addition, transmit film very well attached in the substrate and quite stable.In test 2a and 2b, though in sliding mats 3, have graphite fiber equally.But it is more not easily broken and have a high-strength carbon fiber of the another kind of antiwear characteristic that is different from the high hardness graphite fiber in test 1a and 1b.Cause like this, in test 2a and 2b, do not form and transmit film or form one deck frictional behavior than transmission film poorer and/or stable in test 1a and 1b or that stickiness is littler.In view of the above, the sliding mats 3 in test 2a and 2b is faster than 3 wearing and tearing of the sliding mats in test 1a and 1b.
In test 3, in sliding mats 3, do not have graphite fiber, can on fitting surface 6, not form stable transmission film thus.Plastic substrate itself can help to form the transmission film with teflon at most.This equally also is not enough to form the transmission film of one deck similar in appearance to test 1a and 1b.The result is that the wearing and tearing in this test 3 are greater than the wearing and tearing in test 1a and 1b.Because the wearability of glass fibre own is stronger relatively, so the wear extent of testing in 3 is littler than the wear extent among test 2a and the 2b.
Aforesaid project organization also is applicable to other embodiment by sliding bearing of the present invention in an identical manner.
Fig. 2 illustrates another embodiment by sliding bearing of the present invention.In this embodiment, sliding bearing is designed to radially joint shaft bearing.With the embodiment of Fig. 1 similarly, the sliding bearing shown in Fig. 2 has the outer ring 1 and inner ring 2 that have sliding mats 3 and supporting structure 4.But these parts of sliding bearing have the geometrical shape that is different from the embodiment in figure 1.The slip surface 5 of outer ring 1 and the fitting surface 6 of inner ring 2 all are designed to the circular segments of sphere.This sliding mats 3 is designed to the circular segments of spherical shell.
The material of each parts of sliding bearing shown in Fig. 2 is similar with the material of each parts of sliding bearing described in Fig. 1.
By the sphere decision of slip surface 5 and fitting surface 6, outer ring 1 is turned round around any axis with inner ring 2 each other, so that realize the joint effect.
Except aforesaid embodiment, fitting surface 6 also can be arranged on the outer ring 1.In this case, inner ring 2 has a sliding mats 3 and supporting structure 4 that has slip surface 5.
In addition, sliding bearing for example also is designed to thrust bearing or other sliding bearing structure, wherein, has the sliding mats 3 that at least one is made up of said sliding material.
There is this possibility in addition, gives fitting surface coating, especially chromium plating.
The advantage of sliding bearing of the present invention is especially brought into play in running dry fully.But also be applicable to operation by sliding bearing of the present invention with oiling agent.
Attaches the circle list
1 outer ring
2 inner rings
3 sliding mats
4 supporting structures
5 slip surfaces
6 fitting surfaces
Claims (10)
1. sliding bearing member with slip surface (5) of processing by sliding material; Wherein, said sliding material has the matrix of being made up of polyphthalamide, the high hardness graphite fiber of at least 10% weight content and the teflon of at least 10% weight content.
2. by the described sliding bearing member of claim 1, it is characterized in that this sliding bearing member has at least one sliding mats that is made up of said sliding material (3) and a supporting structure (4), this sliding mats (3) and supporting structure (4) be mechanical connection each other.
3. by the described sliding bearing member of claim 2, it is characterized in that said sliding mats (3) is designed to an independent member that is fixed on the said supporting structure (4).
4. by the described sliding bearing member of claim 2, it is characterized in that said sliding mats (3) is designed to one deck and is coated to the coating on the said supporting structure (4).
5. by the described sliding bearing member of claim 2, it is characterized in that said sliding mats (3) and said supporting structure (4) integrally are made up of said sliding material.
6. sliding bearing, it has the fitting surface (6) with said slip surface (5) sliding contact of said sliding bearing member (1) by the described sliding bearing member of one of claim 1 to 5 (1) and.
7. by the described sliding bearing of claim 6, it is characterized in that said fitting surface (6) is processed by the another kind of material that is different from said sliding material.
8. by claim 6 or 7 described sliding bearings, it is characterized in that said sliding bearing is designed to a kind of at the dry type bearing that does not have to work under the situation of oiling agent.
9. by one of claim 6 to 8 described sliding bearing, it is characterized in that at least a composition of said sliding material part in the working state of said sliding bearing accumulates on the said fitting surface (6).
10. method that is used to make sliding bearing member (1); Wherein, Slip surface (5) is made up of a kind of sliding material, and this sliding material has the matrix that is made up of polyphthalamide, the high hardness graphite fiber of at least 10% weight content and the teflon of at least 10% weight content.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010023647.0 | 2010-06-14 | ||
| DE102010023647A DE102010023647A1 (en) | 2010-06-14 | 2010-06-14 | Slide bearing component e.g. radial universal joint bearing, has sliding surface and sliding coating formed of sliding material, where sliding coating and support structure are mechanically connected with each other |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102312923A true CN102312923A (en) | 2012-01-11 |
Family
ID=45019948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101581018A Pending CN102312923A (en) | 2010-06-14 | 2011-06-14 | Sliding bearing member, sliding bearing and be used to make the method for sliding bearing member |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20110136709A (en) |
| CN (1) | CN102312923A (en) |
| DE (1) | DE102010023647A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479352A (en) * | 2014-12-18 | 2015-04-01 | 安徽科聚新材料有限公司 | Polyphthalamide (PPA) composite material with high temperature resistance and abrasion resistance and preparation method of PPA composite material |
| CN108980201A (en) * | 2018-09-17 | 2018-12-11 | 常州大学 | A kind of flexible bearing can be used for microrobot |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014218322A1 (en) * | 2014-09-12 | 2015-12-17 | Schaeffler Technologies AG & Co. KG | Sliding bearing component and bearing arrangement with this |
| DE102014218319A1 (en) * | 2014-09-12 | 2015-09-24 | Schaeffler Technologies AG & Co. KG | Sliding bearing component and bearing arrangement with this |
| CN108591268A (en) * | 2018-04-28 | 2018-09-28 | 天津大学 | A kind of lightweight low-friction coefficient high abrasion sliding bearing and preparation method thereof |
| CN108644233A (en) * | 2018-04-28 | 2018-10-12 | 天津大学 | A kind of full working scope high abrasion sliding bearing and preparation method thereof |
| DE102019129271B3 (en) | 2019-10-30 | 2020-06-04 | Schaeffler Technologies AG & Co. KG | Device and method for assembling a plain bearing |
| DE102020116588A1 (en) * | 2020-06-24 | 2021-12-30 | Schaeffler Technologies AG & Co. KG | Angular contact sliding bearing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3781205A (en) * | 1970-02-02 | 1973-12-25 | Garlock Inc | Composite bearings |
| US3932008A (en) * | 1974-02-11 | 1976-01-13 | Rockwell International Corporation | Bearing having a self-lubricating liner and method of making |
| DE4430474C1 (en) * | 1994-08-27 | 1996-03-28 | Glyco Metall Werke | Plain bearing material and its use for the production of a composite layer material |
| WO1999020912A1 (en) * | 1997-10-21 | 1999-04-29 | Thomson Industries, Inc. | A plane bearing assembly |
| DE10114844B4 (en) * | 2001-03-24 | 2013-02-28 | Schaeffler Technologies AG & Co. KG | Self-adjusting clutch release bearing |
| DE202004006818U1 (en) | 2004-04-28 | 2005-09-08 | Ab Skf | Bearing unit for mounting of a journal comprises an axial stop disk which consists of a plastic material based on polyphenyl sulphide or polyphthalamide |
| DE102004062586A1 (en) * | 2004-10-18 | 2006-06-14 | Schaeffler Kg | Release device for a shift disconnect clutch on motor vehicles |
-
2010
- 2010-06-14 DE DE102010023647A patent/DE102010023647A1/en not_active Ceased
-
2011
- 2011-06-08 KR KR1020110054968A patent/KR20110136709A/en not_active Application Discontinuation
- 2011-06-14 CN CN2011101581018A patent/CN102312923A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479352A (en) * | 2014-12-18 | 2015-04-01 | 安徽科聚新材料有限公司 | Polyphthalamide (PPA) composite material with high temperature resistance and abrasion resistance and preparation method of PPA composite material |
| CN108980201A (en) * | 2018-09-17 | 2018-12-11 | 常州大学 | A kind of flexible bearing can be used for microrobot |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110136709A (en) | 2011-12-21 |
| DE102010023647A1 (en) | 2011-12-15 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120111 |