CN108071675A - Oscillating bearing and its surface modifying treatment - Google Patents
Oscillating bearing and its surface modifying treatment Download PDFInfo
- Publication number
- CN108071675A CN108071675A CN201610979296.5A CN201610979296A CN108071675A CN 108071675 A CN108071675 A CN 108071675A CN 201610979296 A CN201610979296 A CN 201610979296A CN 108071675 A CN108071675 A CN 108071675A
- Authority
- CN
- China
- Prior art keywords
- bearing
- inner race
- processing method
- facet joint
- sprayed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- 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
- F16C33/14—Special methods of manufacture; Running-in
-
- 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
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
- F16C2220/70—Shaping by removing material, e.g. machining by grinding
-
- 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
- F16C2223/02—Mechanical treatment, e.g. finishing
-
- 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
- F16C2223/42—Coating surfaces by spraying the coating material, e.g. plasma spraying
Abstract
It is an object of the invention to provide a kind of oscillating bearing and its surface modifying treatment, to improve the wear-resisting property of oscillating bearing.Wherein, facet joint bearing surface modification processing method according to the present invention includes:Step 1: bearing inner race to be sprayed is positioned and secured in spraying box；Step 2: spray treatment is carried out using high speed flame spraying technique to the spherical surface of the bearing inner race with sprayed on material；Step 3: after completing the spraying, end flat and top gem of a girdle-pendant endoporus process are ground to the bearing inner race；Step 4: processing is ground to the spherical surface of the bearing inner race with abrasive media.
Description
Technical field
The present invention relates to a kind of metal surface modification method, at a kind of facet joint bearing surface modification
Reason method.
Background technology
The main failure mode of self-lubricating knuckle bearing is the wear out failure of self-lubricating material, abrasion can increase in bearing,
Outer ring gap makes pad lose due lubricating ability.In use, effect of attrition the normal operation of bearing, simultaneously
Also reduce the service life and reliability of self-lubricating knuckle bearing.As it is the extensive use in Aeronautics and Astronautics field, from
The problems such as inordinate wear of lubricating joint bearing, contact surface are modified also constantly is taken seriously.
The content of the invention
It is an object of the invention to provide a kind of oscillating bearing and its surface modifying treatment, to improve oscillating bearing
Wear-resisting property.
Facet joint bearing surface modification processing method according to the present invention includes：
Step 1: bearing inner race to be sprayed is positioned and secured in spraying box；
Step 2: spray treatment is carried out using high speed flame spraying technique to the spherical surface of the bearing inner race with sprayed on material；
Step 3: after completing the spraying, end flat and top gem of a girdle-pendant endoporus process are ground to the bearing inner race；
Step 4: processing is ground to the spherical surface of the bearing inner race with abrasive media.
The further feature of the facet joint bearing surface modification processing method is that the bearing inner race string to be sprayed is one
It on the plug of root TBE (threaded both ends), is separated with spacer ring, is tightened after stringing with nut, is placed in the spraying box.
The further feature of the facet joint bearing surface modification processing method is that the sprayed on material is WC-Co-Cr.
The further feature of the facet joint bearing surface modification processing method is that the spray time of the spraying process is
0.5h to 6h.
The further feature of the facet joint bearing surface modification processing method is that the spraying temperature of the spraying process is
70 degrees Celsius to 130 degrees Celsius.
The further feature of the facet joint bearing surface modification processing method is that the abrasive media is that abrasive size is
The diamond of 240 mesh.
The further feature of the facet joint bearing surface modification processing method is that the sprayed on material is in the bearing
The coating thickness of the spherical surface of circle is 0.35mm to 0.25mm.
The further feature of the facet joint bearing surface modification processing method is the sprayed coating that the sprayed on material is formed
Hardness is 1000~1400HV.
A kind of oscillating bearing includes bearing outer ring, bearing inner race and rod end body, which closes
Bearings surface modifying treatment obtains.
The beneficial effects of the invention are as follows：
Hot-spraying technique is combined with oscillating bearing structure and handling characteristics, using high speed flame spraying technique, inside
Spherical surface coated with hard alloy coat is enclosed, this causes piece surface hardness to be improved, and the wear-resisting property of bearing is improved.
Specific embodiment
With reference to specific embodiment, the invention will be further described, elaborates more details in the following description
To facilitate a thorough understanding of the present invention, still the present invention obviously can be implemented with a variety of other manners different from this description, this
Field technology personnel can make similar popularization according to practical situations without violating the connotation of the present invention, deduce, because
This should not be limited the scope of the invention with the content of this specific embodiment.
Facet joint bearing surface modification processing method according to the present invention, will primarily directed to the bearing inner race of oscillating bearing
Hot-spraying technique is combined with oscillating bearing structure and handling characteristics, using high speed flame spraying technique, is sprayed in inner ring spherical surface
Hard alloy coating includes the following steps：
Step 1: bearing inner race string to be sprayed is opened on the plug of a TBE (threaded both ends) with spacer ring cadmium, spiral shell is used after stringing
Mother tightens, and is placed in spraying box；
Step 2: carrying out spray treatment to the spherical surface of bearing inner race using corresponding spray equipment, sprayed on material can be WC-
Co-Cr, spray time 0.5h, spraying temperature are 130 DEG C；
Step 3: bearing inner race after spraying, is ground end flat and top gem of a girdle-pendant endoporus process；
Step 4: being ground spherical surface process to bearing, abrasive media can be the diamond that abrasive size is 240 mesh.
Grinding terminates, that is, completes the overall process of inner ring spherical surface coated with hard alloy.
Previous embodiment uses self-lubricating knuckle bearing carbide-faced technique, is closed in inner ring spherical surface through coated with hard
After gold plating spherical plain bearing rod end is assembled into outer ring trap.
In an experiment, carried out using treated the inner ring exemplar of the oscillating bearing to Ф 16 using previous embodiment public
Difference detection, situation are as shown in table 1.
1 self-lubricating knuckle bearing inner ring spherical surface tolerance average value of table
After thermal spraying, oscillating bearing inner ring spherical surface coating is uniform, and appearance detection zero defect, each tolerance value is satisfied by drawing
It is required that.
In addition, it is assembled into spherical plain bearing rod end by the inside and outside circle trap of oscillating bearing, and with rod end body.Wear-out life tries
It is as shown in table 2 to test operating mode, test load spectrum is as shown in table 3.
2 wear test operating mode of table
3 test load of table is composed
| Experimental stage | Percentage of time/% | Load/N vertically | Bearing rotary angle/° |
| 1 | 45 | 3500 | ±2 |
| 2 | 55 | 5000 | ±5 |
Wear-out life on high speed swinging testing machine, completes 1000 to simulate the condition of actual helicopter applying working condition
The wear test of hour.Test frequency is 12Hz, and test load is with wearing- in period phasic Chang.
After bearing completes the swing wear test of 1000h, unloading, after dismounting, it is observed that bearing internal external coil structures are good
It is good, the breakoff phenomenons such as no fracture.Rolling bearing inner ring, range estimation pad surfaces are without worn out phenomenon.Clearance value detection is carried out, measures axis
It is 0.165mm to clearance value, less than specified value 0.25mm.And hard chrome plating processing is carried out to the bearing inner race of same size, in phase
With 1000h wear tests are completed under operating condition of test, end-play value is 0.195mm after experiment, more than inner ring plating hard alloy
The end-play value of spherical plain bearing rod end.The above results show, through plating hard alloy treated spherical plain bearing rod end, be on active service
Tribological property under operating mode is improved, and wear-out life is improved.It can be seen that inner ring plates hard alloy in self-lubricating
Application in oscillating bearing series of products is feasible.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this field skill
Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification.Therefore, it is every without departing from
The content of technical solution of the present invention, any modification that technical spirit according to the invention makees above example, equivalent variations
And modification, it each falls within the protection domain that the claims in the present invention are defined.
Claims (9)
1. facet joint bearing surface modification processing method, which is characterized in that including:
Step 1: bearing inner race to be sprayed is positioned and secured in spraying box；
Step 2: spray treatment is carried out using high speed flame spraying technique to the spherical surface of the bearing inner race with sprayed on material；
Step 3: after completing the spraying, end flat and top gem of a girdle-pendant endoporus process are ground to the bearing inner race；
Step 4: processing is ground to the spherical surface of the bearing inner race with abrasive media.
2. facet joint bearing surface modification processing method as described in claim 1, which is characterized in that the bearing inner race to be sprayed
String is separated with spacer ring, tightened after stringing with nut, is placed in the spraying box on the plug of a TBE (threaded both ends).
3. facet joint bearing surface modification processing method as described in claim 1, which is characterized in that the sprayed on material is WC-
Co-Cr。
4. facet joint bearing surface modification processing method as described in claim 1, which is characterized in that the spraying of the spraying process
Time is 0.5h to 6h.
5. facet joint bearing surface modification processing method as described in claim 1, which is characterized in that the spraying of the spraying process
Temperature is 70 degrees Celsius to 130 degrees Celsius.
6. facet joint bearing surface modification processing method as described in claim 1, which is characterized in that the abrasive media is abrasive material
Grain size is the diamond of 240 mesh.
7. facet joint bearing surface modification processing method as described in claim 1, which is characterized in that the sprayed on material is described
The coating thickness of the spherical surface of bearing inner race is 0.35mm to 0.25mm.
8. facet joint bearing surface modification processing method as described in claim 1, which is characterized in that the sprayed on material was formed
Sprayed coating hardness is 1000~1400HV.
9. a kind of oscillating bearing, including bearing outer ring, bearing inner race and rod end body, which is characterized in that the oscillating bearing is by weighing
Profit requires the facet joint bearing surface modification processing method any one of 1 to 8 to obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610979296.5A CN108071675A (en) | 2016-11-08 | 2016-11-08 | Oscillating bearing and its surface modifying treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610979296.5A CN108071675A (en) | 2016-11-08 | 2016-11-08 | Oscillating bearing and its surface modifying treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108071675A true CN108071675A (en) | 2018-05-25 |
Family
ID=62154126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610979296.5A Pending CN108071675A (en) | 2016-11-08 | 2016-11-08 | Oscillating bearing and its surface modifying treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071675A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726555A (en) * | 2019-11-11 | 2020-01-24 | 清华大学 | Low-temperature large-temperature-variation joint bearing test platform and joint bearing measuring method |
| CN112774898A (en) * | 2020-12-31 | 2021-05-11 | 成都布雷德科技有限公司 | Joint bearing inner ball hot spraying clamping shielding structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527612A (en) * | 2011-12-30 | 2012-07-04 | 上海市轴承技术研究所 | Surface modification processing method of knuckle bearing |
| CN203067547U (en) * | 2012-12-17 | 2013-07-17 | 吴江市金平华纺织有限公司 | Anti-abrasive bearing for textile machine |
| CN103748247A (en) * | 2011-06-10 | 2014-04-23 | 苏舍美特科沃卡有限责任公司 | Tungsten-carbide-based spray powder, and substrate with tungsten-carbide-based thermally sprayed layer |
| CN105624601A (en) * | 2014-10-27 | 2016-06-01 | 米巴精密零部件（中国）有限公司 | Method for manufacturing sliding bearing |
-
2016
- 2016-11-08 CN CN201610979296.5A patent/CN108071675A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103748247A (en) * | 2011-06-10 | 2014-04-23 | 苏舍美特科沃卡有限责任公司 | Tungsten-carbide-based spray powder, and substrate with tungsten-carbide-based thermally sprayed layer |
| US20140234609A1 (en) * | 2011-06-10 | 2014-08-21 | Sulzer Metco Woka Gmbh | Tungsten-carbide-based spray powder, and a substrate with a tungsten-carbide-based thermally sprayed layer |
| CN102527612A (en) * | 2011-12-30 | 2012-07-04 | 上海市轴承技术研究所 | Surface modification processing method of knuckle bearing |
| CN203067547U (en) * | 2012-12-17 | 2013-07-17 | 吴江市金平华纺织有限公司 | Anti-abrasive bearing for textile machine |
| CN105624601A (en) * | 2014-10-27 | 2016-06-01 | 米巴精密零部件（中国）有限公司 | Method for manufacturing sliding bearing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726555A (en) * | 2019-11-11 | 2020-01-24 | 清华大学 | Low-temperature large-temperature-variation joint bearing test platform and joint bearing measuring method |
| CN110726555B (en) * | 2019-11-11 | 2021-02-26 | 清华大学 | Low-temperature large-temperature-variation joint bearing test platform and joint bearing measuring method |
| CN112774898A (en) * | 2020-12-31 | 2021-05-11 | 成都布雷德科技有限公司 | Joint bearing inner ball hot spraying clamping shielding structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180525 |
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| RJ01 | Rejection of invention patent application after publication |