CN107387553A - The Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction - Google Patents
The Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction Download PDFInfo
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- CN107387553A CN107387553A CN201710621387.6A CN201710621387A CN107387553A CN 107387553 A CN107387553 A CN 107387553A CN 201710621387 A CN201710621387 A CN 201710621387A CN 107387553 A CN107387553 A CN 107387553A
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- self
- friction
- surface texture
- bearing
- lubricating
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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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
- F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
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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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1095—Construction relative to lubrication with solids as lubricant, e.g. dry coatings, powder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2202/00—Solid materials defined by their properties
- F16C2202/50—Lubricating properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/30—Fluoropolymers
- F16C2208/32—Polytetrafluorethylene [PTFE]
-
- 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
- F16C2326/00—Articles relating to transporting
- F16C2326/43—Aeroplanes; Helicopters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention discloses a kind of Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction.The bearing includes inner ring and outer ring, and the convex spheroid machining of bearing inner race (3) has Surface Texture, and the Surface Texture carries out the pre-filled technical finesse of self-lubricating material friction, forms the pre-filled type Surface Texture structure of self-lubricating material friction；Bearing outer ring (1) the Internal Spherical Surface surface is bonded with one layer of fabric self-lubricating material pad.The present invention compensate for the abrasion that the edge of Surface Texture pads at friction initial stage to textile type to a certain extent, and self-lubricating material is filled under friction mode and is easier to be full of Surface Texture, and technique is simple.The pre-filled self-lubricating material of textured surfaces optimizes the configuration of frictional interface material, so that friction surface transfer membrane easily generates, and texture edge cutting effect is weakened to a certain extent, so that frictional interface has relatively low confficient of static friction and the relatively low coefficient of kinetic friction, so as to increase substantially the service life of self-lubricating knuckle bearing.
Description
Technical field
The present invention relates to a kind of Field of Aviation Manufacturing, and in particular to a kind of textile type Surface Texture friction is Prefilled from profit
Sliding oscillating bearing.
Background technology
Self-lubricating knuckle bearing is because with compact-sized, large carrying capacity, wide, safe and reliable, the resistance to punching of use temperature range
Hit and many advantages, such as good self-lubricating property, in large-scale army/civil transport, new fighter plane, armed helicopter etc.
Type significant points are generally used.It is such as auspicious but domestic self-lubricating knuckle bearing still has larger gap with Foreign Advanced Lerel
Allusion quotation SKF bearings are higher about 1.5-2 than domestic bearing service life (using the said firm X1 type friction pair technologies or XL friction pairs technology)
Times or so.AIAE American institute of automobile engineers standard the SAE AS81820 and AS81819 of renewal in 2014 improve life of product
It is required that wherein AS81820 proposes the pad of resistance to 100,000 wear-out lifes, its life-span is set to improve 4 from existing 2.5 ten thousand times
Times；AS81819-2 proposes clear and definite index request, i.e., after carrying out 600h experiments under 15Mpa, 4m/min experiment condition,
Maximum average abrasion amount is not more than 1.2 × 10-4Mm/h, wear extent are not more than 0.127mm.As aircraft equipment develops, self-lubricating
The military service operating mode of oscillating bearing is more and more harsher, to self-lubricating knuckle bearing performance requirement more and more higher.
The root for restricting self-lubricating knuckle bearing development is friction pair solid and the friction problem of solid interface, is improved from profit
Sliding oscillating bearing performance-critical is to reduce interface friction resistance.Classify by self-lubricating material, aviation self-lubricating knuckle bearing master
Two kinds of textile type and non-woven type can be divided into.At present, aviation self-lubricating knuckle bearing is largely using textile type pad as certainly
Lubricating layer.The life-span of textile type self-lubricating knuckle bearing depends on the fretting wear life-span of pad.
Surface Texture is a kind of very effective means for improving part tribological property, in the Surface Machining of phase mutual friction
Texture can play a part of storing and accommodating abrasive dust, reduce the direct contact of the surface of solids, reach reduction friction, reduce abrasion
Purpose.Surface Texture technology is applied to self-lubricating knuckle bearing by part research.For example, Chinese patent《A kind of solid profit
Sliding The Spherical Plain Bearing and its manufacture method》(CN 105864284A) disclose a kind of solid lubrication The Spherical Plain Bearing and its
Manufacture method.The oscillating bearing inner ring outer surface and inner surface are machined with one layer of reinforcing for strengthening to obtain through ultrasonic burnishing
Layer, and strengthening layer surface layout has micro- texture, while ultrasonic surface is strengthened, adds molybdenum disulfide, tungsten disulfide, dialkyl group two
Any one or a few kollag in thiocarbamic acid molybdenum, flake graphite, graphene, fluorographite, so that close
All there is one layer of solid lubrication lipid layer in bearings inner ring outer surface and inner surface and micro- texture, greatly improve joint shaft
The bearing capacity held, improve friction lubricating performance, improve abrasion resistance properties, greatly improve the service life of oscillating bearing.Should
During item invention work, there is free kollag between Internal and external cycle, be not belonging to textile type self-lubricating knuckle bearing.
Because the edge of Surface Texture has accelerated wear test effect at friction initial stage to textile type pad, limit surface and knit
Application of the structure technology in textile type self-lubricating knuckle bearing product.
The present invention is to improve the military service performance of textile type self-lubricating knuckle bearing, there is provided a kind of Surface Texture friction is pre-filled
Technique, by bearing inner race outer surface finished surface texture, the method using the pre-filled self-lubricating material that rubs, reaching reduction
The fretting wear at pad initial stage, reduce staring torque and simultaneously extend wear-out life, improving aviation textile type self-lubricating knuckle bearing makes
With the purpose of performance.
The content of the invention
It is Prefilled certainly it is an object of the invention to provide a kind of friction of textile type Surface Texture according to above-mentioned design philosophy
Lubricating joint bearing, to meet the duty requirements to be become increasingly complex in the high-new equipment Development of current aviation.
The technical solution adopted for the present invention to solve the technical problems is：A kind of textile type Surface Texture friction is Prefilled
Self-lubricating knuckle bearing, the oscillating bearing include bearing outer ring and bearing inner race, and the bearing inner race outer wall is sphere, bearing
The convex spheroid machining of inner ring has Surface Texture, and the width of Surface Texture is the 30%-80% of bearing inner race outer surface width；It is described
It is pre-filled that Surface Texture carries out self-lubricating material friction；The bearing outer ring inwall is the interior ball being engaged with the bearing inner race
Face, the bearing outer ring Internal Spherical Surface surface are bonded with one layer of fabric self-lubricating material pad.
The bearing inner race of the self-lubricating knuckle bearing has the pre-filled Surface Texture of self-lubricating material friction, the table
Plane texture can use Laser Processing or machining its metal surface is locally removed and formed have definite shape and
Regularly arranged indenture.
The dimple shape of the Surface Texture is circle, square or rhombus, a diameter of 30-200 μ of the circular indentations
m；The length of side of the square indenture is 30-200 μm；The length of side of the rhombus indenture is 30-200 μm；Above-mentioned circular, square
Or the depth of rhombus indenture is 5-20 μm, surface density 10%-60%.
The Surface Texture carries out the pre-filled technical finesse of self-lubricating material friction, and the friction is pre-filled by self-lubricating material
Material is pre-populated into Surface Texture by inner ring and self-lubricating material friction mode, forms the pre-filled type table of self-lubricating material friction
Plane texture structure.
The self-lubricating material is polytetrafluoroethylene (PTFE) (PTFE) based composites.
The beneficial effects of the invention are as follows：For textile type self-lubricating knuckle bearing, in metal surface, finished surface texture is simultaneously
Do the pre-filled processing of friction, self-lubricating material fill under friction mode to be easier to be full of Surface Texture and technique is simple, is knitted
The pre-filled self-lubricating material in structure surface optimizes the configuration of frictional interface material so that and friction surface transfer membrane easily generates,
And texture edge cutting effect is weakened to a certain extent so that frictional interface has relatively low confficient of static friction (low startup power
Square) and the relatively low coefficient of kinetic friction be possibly realized, so as to increase substantially the service life of self-lubricating knuckle bearing.
Brief description of the drawings
Fig. 1 is the sectional view of the Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction；
Fig. 2 is the inner ring texture schematic three dimensional views of the Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction；
Fig. 3 is the pre-filled schematic diagram of bearing inner race spherical outside surface Surface Texture friction；
Fig. 4 is the Prefilled self-lubricating knuckle bearing schematic three dimensional views of textile type Surface Texture friction；
Fig. 5 be whether there is Surface Texture friction it is pre-filled on self-lubricating knuckle bearing friction and wear behavior influence；
Fig. 6 is to whether there is the pre-filled influence to selflubricating liner wear morphology of Surface Texture friction.
In above-mentioned accompanying drawing, 1- bearing outer rings, 2- selflubricating liners, 3- bearing inner races, 4- dimple shapes, 5- knits on surface
Structure, h：Surface Texture width, H:Bearing inner race outer surface width.
Embodiment
Embodiment 1
Fig. 1~Fig. 4 is a kind of Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction disclosed by the invention, its
In, 1 is bearing outer ring, and 3 be bearing inner race, and the outer wall of bearing inner race 3 is sphere, and the convex spheroid machining of bearing inner race 3 has table
Plane texture 5, the width of Surface Texture 5 are the 40% of the outer surface width of bearing inner race 3, and the Surface Texture 5 carries out self-lubricating material
Material friction is pre-filled；The inwall of bearing outer ring 1 is the Internal Spherical Surface that is engaged with the bearing inner race 3, the Internal Spherical Surface of bearing outer ring 1
Surface is bonded with one layer of fabric selflubricating liner 2.The bearing inner race 3 of the self-lubricating knuckle bearing has self-lubricating material pre-fill
The Surface Texture 5 filled, the Surface Texture 5 have a setting using what Laser Processing metal surface was locally removed and formed
Shape and regularly arranged indenture.
In the present invention, Surface Texture 5 is shaped as circular indentations 4, a diameter of 100 μm of the circular indentations 4；It is circular recessed
The depth of trace 4 is 10 μm, surface density 14.3%.
The Surface Texture 5 is rubbed pre-filled technological means by self-lubricating material, and polytetrafluoroethylene (PTFE) (PTFE) base is multiple
Condensation material is pre-populated into Surface Texture, forms the pre-filled type Surface Texture structure of self-lubricating material friction.
The rub principle of Prefilled self-lubricating knuckle bearing of textile type Surface Texture of the present invention is：In self-lubricating joint shaft
Inner ring convex spheroid machining Surface Texture is held, the self-lubricating material filled in friction process, which can be full of and be stored in surface, to be knitted
Structure, while transfer membrane is preliminarily formed in the metal base surface of self-lubricating knuckle bearing inner ring spherical outside surface, the pre-fill that rubs will be completed
Fill the bearing inner race of self-lubricating material and the outer ring with pad be assembled together, the product of formation will preliminary work have compared with
Low confficient of static friction (low staring torque), with the progress of wear process, self-lubricating material loss-filling process will ensure certainly
The coefficient of kinetic friction of lubricating joint bearing is maintained at relatively low and stable state, and bearing military service performance, extension are improved so as to realize
The purpose of service life.
The Prefilled self-lubricating knuckle bearing performance comparison test of textile type Surface Texture friction：
Surface Texture parameter：A diameter of 100 μm；Depth is 10 μm, surface density 14.3%.Utilize aviation self-lubricating joint
Bearing military service benchmark test machine has carried out military service benchmark test to two kinds of self-lubricating knuckle bearings.Test parameters is：
Normal temperature, load：25kN, hunting frequency：2.5Hz.Experimental result is as shown in figs. 5 and 6.From fig. 5, it can be seen that there is Surface Texture
There is lower friction torque (coefficient of friction) and smaller during pre-filled self-lubricating knuckle bearing rub under arms
Wear extent；From fig. 6, it can be seen that have Surface Texture rub pre-filled (A) self-lubricating knuckle bearing in selflubricating liner volume
Knit structure and still keep complete, surface plastic deformation very little, and self-lubricating knuckle bearing of the Surface Texture without friction pre-filled (B)
Its selflubricating liner plastic deformation is serious, and polytetrafluoroethylene fibre and aramid fiber have a certain degree of Plastic Flow,
Weaving textile structure can not be identified.These Prefilled self-lubricating joint shafts test result indicates that textile type Surface Texture rubs
The military service performance held has obtained effective lifting.
Claims (3)
- The Prefilled self-lubricating knuckle bearing 1. a kind of textile type Surface Texture rubs, the oscillating bearing include bearing outer ring And bearing inner race (3) (1), it is characterised in that：Bearing inner race (3) outer wall is sphere, the convex spheroid machining of bearing inner race (3) There is Surface Texture (5), the width of Surface Texture (5) is the 30%-80% of bearing inner race (3) outer surface width；Knit on the surface It is pre-filled that structure (5) carries out self-lubricating material；Bearing outer ring (1) inwall is the interior ball being engaged with the bearing inner race (3) Face, bearing outer ring (1) the Internal Spherical Surface surface are bonded with one layer of fabric self-lubricating material pad (2).
- The Prefilled self-lubricating knuckle bearing 2. textile type Surface Texture according to claim 1 rubs, it is characterised in that： The Surface Texture (5) carries out the pre-filled processing of self-lubricating material friction, and the pre-filled friction is to pass through self-lubricating material Bearing inner race (3) is pre-populated into Surface Texture (5) with self-lubricating material friction mode, and it is pre-filled to form self-lubricating material friction Type Surface Texture structure.
- The Prefilled self-lubricating knuckle bearing 3. textile type Surface Texture according to claim 2 rubs, it is characterised in that： The self-lubricating material is PTFE-based composites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621387.6A CN107387553B (en) | 2017-07-27 | 2017-07-27 | The Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621387.6A CN107387553B (en) | 2017-07-27 | 2017-07-27 | The Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction |
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| Publication Number | Publication Date |
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| CN107387553A true CN107387553A (en) | 2017-11-24 |
| CN107387553B CN107387553B (en) | 2019-02-19 |
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| CN201710621387.6A Active CN107387553B (en) | 2017-07-27 | 2017-07-27 | The Prefilled self-lubricating knuckle bearing of textile type Surface Texture friction |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006071A (en) * | 2018-01-02 | 2018-05-08 | 昆明理工大学 | A kind of gas bush(ing) bearing |
| FR3091734A1 (en) * | 2019-01-11 | 2020-07-17 | Skf | Smooth bearing with improved wear resistance |
| CN112112888A (en) * | 2020-09-23 | 2020-12-22 | 杭州电子科技大学 | Micro-texture self-driven oil drop grease lubrication ball bearing and micro-texture processing method thereof |
| CN112112889A (en) * | 2020-09-23 | 2020-12-22 | 杭州电子科技大学 | Micro-texture deep groove ball bearing with auxiliary contact area lubrication function and inner and outer ring machining method thereof |
| CN112483549A (en) * | 2020-11-30 | 2021-03-12 | 江苏希西维轴承有限公司 | Light self-lubricating wear-resistant joint bearing and preparation method thereof |
| CN114060404A (en) * | 2021-10-29 | 2022-02-18 | 福建龙溪轴承(集团)股份有限公司 | PTFE fabric liner and dry film combined friction pair, application and self-lubricating joint bearing |
| CN114251365A (en) * | 2021-12-30 | 2022-03-29 | 西南交通大学 | Method for improving bearing wear resistance of friction surface of bionic water-lubricated bearing |
| CN114838054A (en) * | 2022-04-15 | 2022-08-02 | 武汉理工大学 | Self-lubricating bearing based on bionic micro-texture and self-lubricating composite material filling method |
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| CN201802762U (en) * | 2010-08-13 | 2011-04-20 | 大连三环复合材料技术开发有限公司 | Self-lubricating oscillating bearing with two half-outer ring integrated structure |
| US20140199113A1 (en) * | 2005-07-19 | 2014-07-17 | Zf Friedrichshafen Ag | Process for manufacturing a ball and socket joint and ball and socket joint manufactured according to the process |
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| CN105782243A (en) * | 2016-03-15 | 2016-07-20 | 江苏大学 | Solid lubrication treatment method for friction pair laser micro-texture surface |
| CN105864285A (en) * | 2016-06-30 | 2016-08-17 | 沈阳工业大学 | Microtextured aero joint bearing and manufacture method thereof |
| CN105864284A (en) * | 2016-06-29 | 2016-08-17 | 沈阳工业大学 | Solid lubrication type aircraft spherical plain bearing and manufacturing method thereof |
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2017
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| US4196249A (en) * | 1978-01-09 | 1980-04-01 | Networks Electronic Corp. | Self lubricating ball joint liner characterized by a surface comprising hard metal particles |
| US20140199113A1 (en) * | 2005-07-19 | 2014-07-17 | Zf Friedrichshafen Ag | Process for manufacturing a ball and socket joint and ball and socket joint manufactured according to the process |
| CN201802762U (en) * | 2010-08-13 | 2011-04-20 | 大连三环复合材料技术开发有限公司 | Self-lubricating oscillating bearing with two half-outer ring integrated structure |
| US20160169272A1 (en) * | 2012-10-22 | 2016-06-16 | H.E.F. | Self-lubricating hinge assembly made from composite material and operating under high dynamic loads |
| CN104149364A (en) * | 2014-06-19 | 2014-11-19 | 福建龙溪轴承(集团)股份有限公司 | Manufacturing method of PTFE (polytetrafluoroethylene) fabric self-lubricating spherical plain bearing |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006071A (en) * | 2018-01-02 | 2018-05-08 | 昆明理工大学 | A kind of gas bush(ing) bearing |
| US10941809B2 (en) | 2019-01-11 | 2021-03-09 | Aktiebolaget Skf | Plain bearing with improved resistance to wear |
| CN111434938A (en) * | 2019-01-11 | 2020-07-21 | 斯凯孚公司 | Sliding bearing with improved wear resistance |
| GB2580499A (en) * | 2019-01-11 | 2020-07-22 | Skf Ab | Plain bearing with improved resistance to wear |
| FR3091734A1 (en) * | 2019-01-11 | 2020-07-17 | Skf | Smooth bearing with improved wear resistance |
| GB2580499B (en) * | 2019-01-11 | 2023-01-25 | Skf Ab | Plain bearing with improved resistance to wear |
| CN111434938B (en) * | 2019-01-11 | 2023-09-19 | 斯凯孚公司 | Sliding bearing with improved wear resistance |
| CN112112888A (en) * | 2020-09-23 | 2020-12-22 | 杭州电子科技大学 | Micro-texture self-driven oil drop grease lubrication ball bearing and micro-texture processing method thereof |
| CN112112889A (en) * | 2020-09-23 | 2020-12-22 | 杭州电子科技大学 | Micro-texture deep groove ball bearing with auxiliary contact area lubrication function and inner and outer ring machining method thereof |
| CN112483549A (en) * | 2020-11-30 | 2021-03-12 | 江苏希西维轴承有限公司 | Light self-lubricating wear-resistant joint bearing and preparation method thereof |
| CN114060404A (en) * | 2021-10-29 | 2022-02-18 | 福建龙溪轴承(集团)股份有限公司 | PTFE fabric liner and dry film combined friction pair, application and self-lubricating joint bearing |
| CN114251365A (en) * | 2021-12-30 | 2022-03-29 | 西南交通大学 | Method for improving bearing wear resistance of friction surface of bionic water-lubricated bearing |
| CN114838054A (en) * | 2022-04-15 | 2022-08-02 | 武汉理工大学 | Self-lubricating bearing based on bionic micro-texture and self-lubricating composite material filling method |
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| Publication number | Publication date |
|---|---|
| CN107387553B (en) | 2019-02-19 |
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