CN104121294B - A kind of oscillating bearing spherical surface selflubricating liner curing process method - Google Patents
A kind of oscillating bearing spherical surface selflubricating liner curing process method Download PDFInfo
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- CN104121294B CN104121294B CN201410275350.9A CN201410275350A CN104121294B CN 104121294 B CN104121294 B CN 104121294B CN 201410275350 A CN201410275350 A CN 201410275350A CN 104121294 B CN104121294 B CN 104121294B
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- inner ring
- temperature
- selflubricating liner
- outer ring
- selflubricating
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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
- F16C43/00—Assembling bearings
- F16C43/02—Assembling sliding-contact 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
- 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
- F16C23/045—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings for radial load mainly, e.g. radial 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
- F16C33/20—Sliding surface consisting mainly of plastics
- F16C33/208—Methods of manufacture, e.g. shaping, applying coatings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a kind of oscillating bearing spherical surface selflubricating liner curing process method, curing process method is: only inner ring is heated, control inner ring temperature reaches the solidification temperature of the sqtructural adhesive of selflubricating liner and keeps this temperature a period of time, temperature transfer route is made to be transferred to selflubricating liner successively from inner ring, outer ring and the solidification collar, inner ring temperature is higher than outer ring temperature, outer ring temperature is higher than solidifying collar temperature, what solidify the collar expands the expansion less than outer ring, the expansion of outer ring is less than the expansion of inner ring, realize inner ring spherical outside surface and outer ring Internal Spherical Surface in solidification process and create the solidifying pressure that selflubricating liner is lasting.The present invention utilizes the expansion characteristics of metal material, oscillating bearing inner ring is made to expand in the curing process, make outer ring not expand or few expansion simultaneously, utilizing sphere size expansion difference between inner ring and outer ring to the lasting circumferential solidifying pressure of selflubricating liner, the intensity of selflubricating liner and anti-wear performance improve.
Description
Technical field
The present invention relates to a kind of oscillating bearing spherical surface selflubricating liner curing process method.
Background technology
Generally, in order to PTFE self lubricating fabric liner sqtructural adhesive is pasted in flat panel workpieces, generally need to press a pressing plate on liner in advance and rely on pressing plate deadweight or apply certain power thereon, and it is simultaneously placed in baking oven to make up to solidification temperature, realize being applied with certain solidifying pressure in the curing process all the time, so that PTFE self lubricating fabric liner is reliably bonded in flat panel workpieces, liner intensity and anti-wear performance after so solidifying could meet prescription.
nullBut for oscillating bearing，Owing to outer ring and inner ring are all spherical structures，When the Internal Spherical Surface of outer ring pasting PTFE self lubricating fabric，Also a circumferential pressure must be applied in the curing process all the time，And the method that above-mentioned flat board is pasted can only provide the pressure of single direction，And oscillating bearing outer ring gluing of surfaces shape is an Internal Spherical Surface，Need a circumferential pressure being evenly distributed on sphere，Common practice is oscillating bearing interference to be encased in a solidification collar，The difference in size between the internal diameter and the external diameter of outer ring that solidify the collar is utilized to produce interference power，Utilize this interference masterpiece for the circumferential solidifying pressure in solidification process，But in actual application，Sqtructural adhesive is when reaching the solidification temperature initial stage，Adhesive presents soft state，Therefore interference power now will weaken and even disappear，Solidifying pressure cannot sustainable supply，The liner intensity causing oscillating bearing can not meet expection requirement with anti-wear performance.
Summary of the invention
The invention provides a kind of oscillating bearing spherical surface selflubricating liner curing process method, which overcome the deficiency existing for background technology.The technical solution adopted for the present invention to solve the technical problems is: a kind of oscillating bearing spherical surface selflubricating liner curing process method, oscillating bearing includes the outer ring with Internal Spherical Surface, selflubricating liner and the inner ring with spherical outside surface, selflubricating liner have front and opposing with front to the back side, before selflubricating liner solidifies: the front of selflubricating liner and the back side are respectively provided with sqtructural adhesive, it is pasted together by sqtructural adhesive between front and the Internal Spherical Surface of outer ring of selflubricating liner, inner ring is inserted in selflubricating liner and has the sealing coat that the spherical outside surface at the back side Yu inner ring for preventing selflubricating liner is bonding between spherical outside surface and the back side of selflubricating liner of inner ring, the periphery of outer ring is also arranged with the solidification collar；It is characterized in that: selflubricating liner curing process method is: only inner ring is heated, the temperature of control inner ring makes up to the solidification temperature of the sqtructural adhesive of selflubricating liner and keeps this temperature a period of time, make temperature transfer route for being transferred to selflubricating liner successively from inner ring, outer ring and the solidification collar, the temperature of inner ring is higher than the temperature of outer ring, the temperature of outer ring is higher than the temperature solidifying the collar, under the effect that size expansion amount and temperature are linear, what solidify the collar expands the expansion less than outer ring, the expansion of outer ring is less than the expansion of inner ring, form inner ring, outer ring is poor with the dilation dimension solidifying the collar, inner ring is made to produce the circumferential interference internal force around sphere with outer ring and solidification set interannular, thus realizing the spherical outside surface of inner ring and the Internal Spherical Surface of outer ring in solidification process to create the circumferential solidifying pressure that selflubricating liner is lasting.
Among one preferred embodiment: the solidification temperature of selflubricating liner is 140～170 DEG C, the time keeping this temperature is 1.5～2.5 hours.
Among one preferred embodiment: the method only inner ring being heated adopts electromagnetic induction heating or infrared heating.
Among one preferred embodiment: described sealing coat is releasing agent, and releasing agent is coated uniformly on the spherical outside surface of inner ring.
Among one preferred embodiment: described sealing coat is the multi-layer co-extruded Polyolefin Heat Shrinkable Film of tubular, this heat shrink films is enclosed within outside the spherical outside surface of inner ring before being inserted in selflubricating liner by inner ring, and the inner ring being cased with this heat shrink films is put into baking oven baking, this heat shrink films shrinks and tightly touch the spherical outside surface of inner ring, formed one layer with inner ring outside the smooth of spherical concentric thicken film.
The technical program is compared with background technology, and it has the advantage that
1. the curing of the present invention, only this part of inner ring is heated, conduction of heat formation temperature gradient is utilized to decay, utilize the expansion characteristics of metal material, oscillating bearing inner ring is made to expand in the curing process, make outer ring not expand or few expansion simultaneously, thus utilizing the sphere size differential expansion between inner ring and outer ring, inner ring is made to produce the circumferential interference internal force around sphere with outer ring and solidification set interannular, thus the liner being between inner ring and outer ring is produced a lasting circumferential solidifying pressure, the intensity and the anti-wear performance that make selflubricating liner improve, the service life of oscillating bearing is greatly promoted.
2. the time keeping the solidification temperature of selflubricating liner is 1.5～2.5 hours, and having the beneficial effect that of its generation makes the adhesive in liner fully solidify under lasting circumferential solidifying pressure, promotes intensity and the wearability of liner.
3. adopt electromagnetic induction heating or infrared heating method that inner ring is heated, make inner ring heating-up temperature increase and expand uniformly, and sustainable generation conduction of heat, inner ring, outer ring, solidification set interannular differential expansion can keep constant, the circumferential interference internal force produced is stable, and the circumferential solidifying pressure suffered by selflubricating liner is evenly, effectively.
4. heat shrink films has hot strength height; elongation percentage is big; looping ability is strong; shrink the advantage that rear surface is smooth; the technical program is not merely with its excellent shrinkage; more digging utilization its not with metal material bonding and not with the release characteristic of the adhesive bonds on liner, the effect that effectively protection inner ring spherical outside surface is not bonded together with liner can be played in the curing process.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 depicts assembling schematic diagram when selflubricating liner solidifies.
Detailed description of the invention
Refer to Fig. 1, a preferred embodiment of a kind of oscillating bearing spherical surface selflubricating liner curing process method.
As shown in Figure 1, oscillating bearing includes the outer ring 3 with Internal Spherical Surface, selflubricating liner 2 and the inner ring 1 with spherical outside surface, selflubricating liner 2 have front 7 and opposing with front 7 to the back side 6, before selflubricating liner 2 solidifies: front 7 and the back side 6 of selflubricating liner are respectively provided with sqtructural adhesive, it is pasted together by sqtructural adhesive between front 7 and the Internal Spherical Surface of outer ring 3 of selflubricating liner, the spherical outside surface of inner ring 1 is by being inserted in selflubricating liner 2 after implementing sealing coat process, outside inner ring 1, sphere is towards the back side of selflubricating liner 2, the periphery of outer ring 3 is also arranged with the solidification collar 4；
In the present embodiment, described sealing coat is releasing agent, and releasing agent is coated uniformly on the spherical outside surface of inner ring 1.
Or, as required, described sealing coat also can be adopted the multi-layer co-extruded Polyolefin Heat Shrinkable Film of tubular, it is enclosed within outside the spherical outside surface of inner ring 1 by this tubular heat shrink films, and the inner ring 1 being cased with this heat shrink films is put into baking oven baking, this heat shrink films shrinks and tightly touch the spherical outside surface of inner ring 1, formed one layer with inner ring 1 outside the smooth of spherical concentric thicken film.The thickness that can be selected for of this heat shrink films is 0.005～0.06 millimeter, and the temperature of baking oven is the shrinkage temperature 120 DEG C～180 DEG C of heat shrink films.
Selflubricating liner conduction of heat differential expansion curing process method is:
Heater 5 is adopted only inner ring 6 to be heated, the temperature of control inner ring 1 makes up to the solidification temperature of the sqtructural adhesive of selflubricating liner 2 and keeps this temperature a period of time, make temperature transfer route for be transferred to selflubricating liner 2 successively from inner ring 1, outer ring 3 and the solidification collar 4, the temperature of inner ring 1 is higher than the temperature of outer ring 3, the temperature of outer ring 3 is higher than the temperature solidifying the collar 4, under the effect that size expansion amount and temperature are linear, what solidify the collar 4 expands the expansion less than outer ring 3, the expansion of outer ring 3 is less than the expansion of inner ring 1, make inner ring 1 and outer ring 3 and solidify the circumferential interference internal force producing to surround sphere between the collar 4, thus the Internal Spherical Surface of the spherical outside surface and outer ring 3 realizing inner ring 1 in solidification process creates the circumferential solidifying pressure that the selflubricating liner 2 being between inner ring and outer ring is lasting.
In the present embodiment, the solidification temperature of selflubricating liner 2 is 140～170 DEG C, and the time keeping this temperature is 1.5～2.5 hours.
In the present embodiment, described heater 5 includes and is not limited to electromagnetic induction heating or infrared heating device etc..
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, and the equivalence namely made according to the scope of the claims of the present invention and description changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (5)
1. an oscillating bearing spherical surface selflubricating liner curing process method, oscillating bearing includes the outer ring with Internal Spherical Surface, selflubricating liner and the inner ring with spherical outside surface, selflubricating liner have front and opposing with front to the back side, before selflubricating liner solidifies: the front of selflubricating liner and the back side are respectively provided with sqtructural adhesive, it is pasted together by sqtructural adhesive between front and the Internal Spherical Surface of outer ring of selflubricating liner, inner ring is inserted in selflubricating liner and has the sealing coat that the spherical outside surface at the back side Yu inner ring for preventing selflubricating liner is bonding between spherical outside surface and the back side of selflubricating liner of inner ring, the periphery of outer ring is also arranged with the solidification collar；It is characterized in that: selflubricating liner curing process method is: only inner ring is heated, the temperature of control inner ring makes up to the solidification temperature of the sqtructural adhesive of selflubricating liner and keeps this temperature a period of time, make temperature transfer route for being transferred to selflubricating liner successively from inner ring, outer ring and the solidification collar, the temperature of inner ring is higher than the temperature of outer ring, the temperature of outer ring is higher than the temperature solidifying the collar, under the effect that size expansion amount and temperature are linear, what solidify the collar expands the expansion less than outer ring, the expansion of outer ring is less than the expansion of inner ring, thus utilizing the sphere size expansion difference between inner ring and outer ring to realize the spherical outside surface of inner ring and the Internal Spherical Surface of outer ring in solidification process create the circumferential solidifying pressure that selflubricating liner is lasting.
2. a kind of oscillating bearing spherical surface selflubricating liner curing process method according to claim 1, it is characterised in that: the solidification temperature of selflubricating liner is 140～170 DEG C, and the time keeping this temperature is 1.5～2.5 hours.
3. a kind of oscillating bearing spherical surface selflubricating liner curing process method according to claim 1, it is characterised in that: the method only inner ring being heated adopts electromagnetic induction heating or infrared heating.
4. a kind of oscillating bearing spherical surface selflubricating liner curing process method according to claim 1, it is characterised in that: described sealing coat is releasing agent, and releasing agent is coated uniformly on the spherical outside surface of inner ring.
5. a kind of oscillating bearing spherical surface selflubricating liner curing process method according to claim 1, it is characterized in that: described sealing coat is the multi-layer co-extruded Polyolefin Heat Shrinkable Film of tubular, this heat shrink films is enclosed within outside the spherical outside surface of inner ring before being inserted in selflubricating liner by inner ring, and the inner ring being cased with this heat shrink films is put into baking oven baking, this heat shrink films shrinks and tightly touch the spherical outside surface of inner ring, formed one layer with inner ring outside the smooth of spherical concentric thicken film.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275350.9A CN104121294B (en) | 2014-06-19 | 2014-06-19 | A kind of oscillating bearing spherical surface selflubricating liner curing process method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410275350.9A CN104121294B (en) | 2014-06-19 | 2014-06-19 | A kind of oscillating bearing spherical surface selflubricating liner curing process method |
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| CN104121294A CN104121294A (en) | 2014-10-29 |
| CN104121294B true CN104121294B (en) | 2016-07-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565087B (en) * | 2014-12-12 | 2017-03-29 | 燕山大学 | A kind of swelling pressing device of self-lubricating oscillating bearing liner bonding solidification |
| CN106089997A (en) * | 2016-08-22 | 2016-11-09 | 怀宁吉利来精密机械科技有限公司 | A kind of manufacturing process of PTFE material water conservancy oscillating bearing |
| CN107389346B (en) * | 2017-07-27 | 2019-04-09 | 燕山大学 | Rub pre-filled method for Surface Texture self-lubricating material |
| DE102019129271B3 (en) * | 2019-10-30 | 2020-06-04 | Schaeffler Technologies AG & Co. KG | Device and method for assembling a plain bearing |
| CN111664178A (en) * | 2020-07-01 | 2020-09-15 | 成都奇门科技有限公司 | Spherical crown bearing and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1575449B2 (en) * | 1965-08-03 | 1972-05-31 | The Fafnir Bearing Co., New Britain, Conn. (V.St.A.) | METHOD AND DEVICE FOR MANUFACTURING A BALL JOINT SLIDING BEARING |
| CN2195654Y (en) * | 1994-03-27 | 1995-04-26 | 刘正明 | Oscillating bearing |
| JPH0979261A (en) * | 1995-09-19 | 1997-03-25 | Nippon Steel Corp | Spherical slide bearing |
| CN202301488U (en) * | 2011-09-29 | 2012-07-04 | 台州科锦轴承有限公司 | Self-lubricating joint bearing moulding mould |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6068405A (en) * | 1998-05-15 | 2000-05-30 | Rexnord Corporation | Diametrically split composite spherical bearing and method of producing same |
| US20120141052A1 (en) * | 2010-12-05 | 2012-06-07 | New Hampshire Ball Bearings, Inc. | Self lubricated bearing compositions and methods of making the same |
-
2014
- 2014-06-19 CN CN201410275350.9A patent/CN104121294B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1575449B2 (en) * | 1965-08-03 | 1972-05-31 | The Fafnir Bearing Co., New Britain, Conn. (V.St.A.) | METHOD AND DEVICE FOR MANUFACTURING A BALL JOINT SLIDING BEARING |
| CN2195654Y (en) * | 1994-03-27 | 1995-04-26 | 刘正明 | Oscillating bearing |
| JPH0979261A (en) * | 1995-09-19 | 1997-03-25 | Nippon Steel Corp | Spherical slide bearing |
| CN202301488U (en) * | 2011-09-29 | 2012-07-04 | 台州科锦轴承有限公司 | Self-lubricating joint bearing moulding mould |
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| CN104121294A (en) | 2014-10-29 |
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