CN110102958A - A kind of optimization method that waste and old bearing recycles - Google Patents
A kind of optimization method that waste and old bearing recycles Download PDFInfo
- Publication number
- CN110102958A CN110102958A CN201910368807.3A CN201910368807A CN110102958A CN 110102958 A CN110102958 A CN 110102958A CN 201910368807 A CN201910368807 A CN 201910368807A CN 110102958 A CN110102958 A CN 110102958A
- Authority
- CN
- China
- Prior art keywords
- bearing
- waste
- recycles
- old
- optimization method
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to technical field of bearings, more specifically, a kind of optimization method that waste and old bearing recycles is provided, including cleaning, bearing clearance detection, disintegration, the detection of bearing internal external circle size detection, bearing roller and sealing and etc..The present invention is by being processed the waste and old bearing after machine under original thermal straightening machine, it is able to extend bearing service life, waste and old bearing after enabling lower machine recycles, reduce production cost, it can also solve straightener and oil leakage phenomenon and straightening roll replacement cycle shorter defect occur in straightening process, while improve plate surface quality.
Description
Technical field
The present invention relates to technical field of bearings, more specifically, providing a kind of optimization method that waste and old bearing recycles.
Background technique
Slab steel billet is after roughing, finish rolling, and each section temperature is uneven when rapid cooling thicker due to slab, and deformation is uneven,
The defects of easily causing side wave and bent wooden dipper, thermal straightening machine are exactly to be plastically deformed steel plate by the depressing force of straightening roll, are subtracted
The curvature of few surface of steel plate, so as to improve the defect of slab after finish rolling.Sealing is all used without before thermal straightening machine roller system
Open bearing, since its surface temperature is close to 900 DEG C in straightening process for steel plate, external radiation temperature is also close to 200 DEG C.And axis
The size for holding clearance decides load distribution and the Max.contact stress of bearing, and decides the fatigue life of bearing.Meanwhile
Bearing fatigue life is also by many factors such as material property, heat treatment, lubricating condition, operating temperature, load-up condition, set sizes
Influence.Wherein, influence of the clearance to bearing fatigue life is significant.Lubricating grease used in open bearing originally is common
Lithium saponify easily liquefies under high temperature environment, drops on steel plate after grease liquefaction, influences strip surface quality.Existing solution
Certainly method is periodically lower machine replacement grease and bearing, but does not prevent grease drippage problem completely, and bearing life well below
Its rated life time causes bearing replacing fast, increases cost.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide the optimization method that a kind of waste and old bearing recycles,
By being processed to the waste and old bearing after machine under original thermal straightening machine, it is able to extend bearing service life, after making lower machine
Waste and old bearing can recycle, reduce production cost, additionally it is possible to solve straightener straightening process occur oil leakage phenomenon with
And the defect that the straightening roll replacement cycle is shorter, while improving plate surface quality.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of optimization method that waste and old bearing recycles is provided, comprising the following steps:
S1. bearing cleaning；
S2. after step S1, bearing clearance is measured, if clearance is greater than 220 μm, processing is scrapped, if clearance is less than
Or be equal to 220 μm, then bearing is disintegrated, and execute step S3；
S3. upon step s 2, the bearing internal external circle size after measurement is disintegrated, and use internal grinder and cylindrical grinder pair
Fatigue layer on bearing internal external circle roller surface is ground；
S4. upon step s 2, bearing element external surface and measurement rolling element size after detection is disintegrated, if rolling
Body is cracked or spot corrosion, then replaces rolling element；
S5. the bearing roller of the bearing inner race of step S3, outer ring and step S4 is ressembled；
S6. the clearance for the bearing that measuring process S5 is obtained, if bearing clearance within 160-190 μm, thens follow the steps S7,
It is no to then follow the steps S3 and S4；
S7. high temperature-resistant grease is filled to Bearing inner, the grease-filled amount of Bearing inner is the 65~90% of whole spaces；
S8. after step s 7, the oil inlet and outlet of bearing block is blocked using sealing device.
The present invention is a kind of optimization method that waste and old bearing recycles, including bearing cleaning, measurement bearing clearance, bearing solution
Body, measurement Internal and external cycle, measurement rolling element, reassemble, measure assembly after bearing clearance, seal and etc..Bearing cleaning be for
The impurity of waste and old bearing surface washed away, prevents surface impurity from causing error to subsequent measurement；Waste and old bearing is measured for the first time
Clearance is if can not repair, directly to scrap processing, reduction to judge whether waste and old bearing can continue to repair and use
The unnecessary workload of worker personnel；It is to be able to bearing disintegration more accurately to measure bearing internal external circle size and inspection
It surveys and rolls external surface；Fatigue layer on grinding Internal and external cycle roller surface can reduce the friction valve of race way, improve bearing
Upper limit (UL) revolving speed；Detecting rolling element is to replace the rolling element that can not be reused；Measure the bearing after ressembling
Clearance is to judge whether improved bearing can operate normally；The grease-filled of Bearing inner does not fill out whole spaces
Full setting is the running temperature in order to reduce bearing；The oil inlet and outlet that bearing block is blocked using sealing device is to leak in order to prevent
The generation of oily phenomenon.
Excessive skiving causes bearing to be scrapped in order to prevent, and in step s3, the grinding thichness for being ground fatigue layer is no more than 100
μm。
Excessive skiving causes bearing to be scrapped in order to prevent, and in step s3, polishing width is less than the roller surface width 2 of bearing
~5mm.
Grease liquefaction in order to prevent drops on steel plate, and in the step s 7, the high temperature-resistant grease is SKF LGHB2
(GEM9) grease.
In order to guarantee the lubrication operating of bearing while reaching reduces bearing running temperature effect, in step S7
In, the grease-filled amount of Bearing inner is the 70% of whole spaces.
The generation of oil leakage phenomenon in order to prevent, in step s 8, the sealing device are rubber stopper.
In order to enable sealing device effectively to block the oil inlet and outlet of bearing block, the sealing device is the stick with chuck
Shape structure, the chuck are set to the top of the club shaped structure.
Grease overflows at high temperature in order to prevent, and the rubber stopper is fluorubber.
Compared with prior art, the beneficial effects of the present invention are:
(1) setting of measurement bearing clearance before disintegrating is used for judging whether waste and old bearing can continue to repair, is reduced
The unnecessary workload of worker personnel.
(2) bearing clearance ressembled is arranged between 160-190 μm, can be good at guaranteeing that waste and old bearing is changing
It can be operated normally after making.
(3) the grease-filled amount of Bearing inner is 70% setting in whole spaces, can be effectively reduced the operation temperature of bearing
Degree.
(4) operating temperature range of the setting of SKF LGHB2 (GEM9) grease is -20 DEG C to+260 DEG C, can prevent oil
Rouge liquefies under high temperature environment and drops on steel plate.
(5) structure setting of sealing device is capable of the oil inlet and outlet of effective sealed bearing.
Detailed description of the invention
Fig. 1 is a kind of flow chart for the optimization method that waste and old bearing recycles of the present invention.
Fig. 2 is the structural schematic diagram of sealing device.
It is as follows to illustrate description of symbols:
1- sealing device, 11- chuck, 12- notch, 13- club shaped structure.
Specific embodiment
The present invention is further illustrated With reference to embodiment.Wherein, attached drawing only for illustration,
What is indicated is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore positional relationship is described in attached drawing
Term only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
Embodiment 1
It is as shown in Figure 1 to Figure 2 a kind of first embodiment for the optimization method that waste and old bearing recycles of the present invention, including with
Lower step:
S1. bearing cleaning；
S2. after step S1, bearing clearance is measured, if clearance is greater than 220 μm, processing is scrapped, if clearance is less than
Or be equal to 220 μm, then bearing is disintegrated, and execute step S3；
S3. upon step s 2, the bearing internal external circle size after measurement is disintegrated, and use internal grinder and cylindrical grinder pair
Fatigue layer on bearing internal external circle roller surface is ground；
S4. upon step s 2, bearing element external surface and measurement rolling element size after detection is disintegrated, if rolling
Body is cracked or spot corrosion, then replaces rolling element；
S5. the bearing roller of the bearing inner race of step S3, outer ring and step S4 is ressembled；
S6. the clearance for the bearing that measuring process S5 is obtained, if bearing clearance within 160-190 μm, thens follow the steps S7,
It is no to then follow the steps S3 and S4；
S7. high temperature-resistant grease is filled to Bearing inner, the grease-filled amount of Bearing inner is the 65~90% of whole spaces；
S8. after step s 7, the oil inlet and outlet of bearing block is blocked using sealing device 1.
Bearing cleaning is to prevent surface impurity from causing to miss to subsequent measurement to wash away the impurity of waste and old bearing surface
Difference；It measures waste and old bearing clearance for the first time and is to judge whether waste and old bearing can continue to repair and use, if can not repair,
Processing is then directly scrapped, the unnecessary workload of worker personnel is reduced；Bearing disintegration is to be able to more accurately survey
It measures bearing internal external circle size and detection rolls external surface；Fatigue layer on grinding Internal and external cycle roller surface can reduce bearing rolling
The friction valve in road face improves the upper limit (UL) revolving speed of bearing；Detecting rolling element is to replace the rolling element that can not be reused；
The bearing clearance after ressembling is measured, is to judge whether improved bearing can operate normally；The oil of Bearing inner
The setting that whole spaces are filled up is not the running temperature in order to reduce bearing by rouge filling；Bearing block is blocked using sealing device 1
Oil inlet and outlet be oil leakage phenomenon in order to prevent generation.
In addition, in step s3, the grinding thichness for being ground fatigue layer is no more than 100 μm.The setting of grinding thichness can be prevented
Only excessive skiving causes bearing to be scrapped.As shown in Figure 1, in second and the above number implementation steps S3 to fatigue in the present embodiment
When layer is ground, stock removal should control the assembly clearance for guaranteeing bearing at 5~10 μm.
Wherein, in step s3, polishing width is less than 2~5mm of roller surface width of bearing.The setting of polishing width can
Prevent excessive skiving from bearing being caused to be scrapped.
In addition, in the step s 7, high temperature-resistant grease is SKF LGHB2 (GEM9) grease.SKF LGHB2 (GEM9) grease
Setting can prevent grease liquefaction from dropping on steel plate.The operating temperature range of SKF LGHB2 (GEM9) grease be -20 DEG C to+
It 260 DEG C, can be in 260 DEG C or less long-term works.
In addition, in the step s 7, the grease-filled amount of Bearing inner is the 70% of whole spaces.Energy is arranged in 70% loading
Enough running temperatures by bearing reduce by 15~20 DEG C, while can also guarantee the lubrication operating of bearing.
In addition, in step s 8, sealing device 1 is rubber stopper.The setting of rubber stopper can prevent the generation of oil leakage phenomenon.
Wherein, sealing device 1 is the club shaped structure 13 with chuck 11, and chuck 11 is set to the top of club shaped structure 13.It is close
The structure setting of seal apparatus 1 can effectively block the oil inlet and outlet of bearing block.As shown in Fig. 2, chuck 11 in the present embodiment
It is equipped with notch 12, the setting of notch 12 can be convenient for the dismounting of sealing device 1.
Wherein, rubber stopper is fluorubber.The setting of fluorubber can prevent grease spilling at high temperature.It is existing to be used for axis
The rubber plug material for holding sealing is mostly hydrogenated nitrile-butadiene rubber, and heat-resisting quantity is 130~180 DEG C, and cold resistance is -55 DEG C~-38
DEG C, although mechanicalness is good, it is only suitable for using on straightener, since its maximum operation (service) temperature only has 180 DEG C or so, so
It is not particularly suited for pre-straightening machine.And the operating temperature range of fluorubber is -20 DEG C to+260 DEG C, it can be long-term at 260 DEG C or less
Work, in 300 DEG C or so progress short-term jobs, can satisfy the use of Thick Plate Plant pre-straightening machine straightening roll.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (8)
1. a kind of optimization method that waste and old bearing recycles, which comprises the following steps:
S1. bearing cleaning；
S2. after step S1, bearing clearance is measured, if clearance is greater than 220 μm, processing is scrapped, if clearance is less than or waits
In 220 μm, then bearing is disintegrated, and executes step S3；
S3. upon step s 2, the bearing internal external circle size after measurement is disintegrated, and using internal grinder and cylindrical grinder to bearing
Fatigue layer on Internal and external cycle roller surface is ground；
S4. upon step s 2, bearing element external surface and measurement rolling element size after detection is disintegrated, if rolling element goes out
Existing crackle or spot corrosion, then replace rolling element；
S5. the bearing roller of the bearing inner race of step S3, outer ring and step S4 is ressembled；
S6. the clearance for the bearing that measuring process S5 is obtained, if bearing clearance within 160-190 μm, thens follow the steps S7, otherwise
Execute step S3 and S4；
S7. high temperature-resistant grease is filled to Bearing inner, the grease-filled amount of Bearing inner is the 65~90% of whole spaces；
S8. after step s 7, the oil inlet and outlet of bearing block is blocked using sealing device (1).
2. the optimization method that a kind of waste and old bearing according to claim 1 recycles, which is characterized in that in step s3,
The grinding thichness for being ground fatigue layer is no more than 100 μm.
3. the optimization method that a kind of waste and old bearing according to claim 2 recycles, which is characterized in that in step s3,
Polishing width is less than 2~5mm of roller surface width of bearing.
4. the optimization method that a kind of waste and old bearing according to any one of claims 1 to 3 recycles, which is characterized in that
In step S7, the high temperature-resistant grease is SKF LGHB2 grease.
5. the optimization method that a kind of waste and old bearing according to claim 1 recycles, which is characterized in that in the step s 7,
The grease-filled amount of Bearing inner is the 70% of whole spaces.
6. the optimization method that a kind of waste and old bearing according to claim 1 recycles, which is characterized in that in step s 8,
The sealing device (1) is rubber stopper.
7. the optimization method that a kind of waste and old bearing according to claim 6 recycles, which is characterized in that the sealing device
It (1) is the club shaped structure (13) with chuck (11), the chuck (11) is set to the top of the club shaped structure (13).
8. the optimization method that a kind of waste and old bearing according to claim 6 recycles, which is characterized in that the rubber stopper is
Fluorubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368807.3A CN110102958A (en) | 2019-05-05 | 2019-05-05 | A kind of optimization method that waste and old bearing recycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368807.3A CN110102958A (en) | 2019-05-05 | 2019-05-05 | A kind of optimization method that waste and old bearing recycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110102958A true CN110102958A (en) | 2019-08-09 |
Family
ID=67488148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910368807.3A Pending CN110102958A (en) | 2019-05-05 | 2019-05-05 | A kind of optimization method that waste and old bearing recycles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110102958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2818374C1 (en) * | 2023-11-20 | 2024-05-02 | Общество С Ограниченной Ответственностью "Тек-Ком Холдинг" | Repair method of axle box tapered roller case bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203223478U (en) * | 2013-05-03 | 2013-10-02 | 进发轴承有限公司 | High-temperature-resistant deep groove ball bearing |
| CN103836067A (en) * | 2014-03-27 | 2014-06-04 | 山东凯美瑞轴承科技有限公司 | Sealed self-aligning roller bearing for high-speed rail and repair method thereof |
| CN106141560A (en) * | 2016-07-01 | 2016-11-23 | 王素英 | A kind of bearing restorative procedure |
| US9951816B2 (en) * | 2012-10-17 | 2018-04-24 | Ntn Corporation | Bearing part, rolling bearing, and method for manufacturing bearing part |
| CN109454115A (en) * | 2018-11-15 | 2019-03-12 | 宝钢轧辊科技有限责任公司 | Scrap backing roll self-contained bearing inner ring reuse method |
-
2019
- 2019-05-05 CN CN201910368807.3A patent/CN110102958A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9951816B2 (en) * | 2012-10-17 | 2018-04-24 | Ntn Corporation | Bearing part, rolling bearing, and method for manufacturing bearing part |
| CN203223478U (en) * | 2013-05-03 | 2013-10-02 | 进发轴承有限公司 | High-temperature-resistant deep groove ball bearing |
| CN103836067A (en) * | 2014-03-27 | 2014-06-04 | 山东凯美瑞轴承科技有限公司 | Sealed self-aligning roller bearing for high-speed rail and repair method thereof |
| CN106141560A (en) * | 2016-07-01 | 2016-11-23 | 王素英 | A kind of bearing restorative procedure |
| CN109454115A (en) * | 2018-11-15 | 2019-03-12 | 宝钢轧辊科技有限责任公司 | Scrap backing roll self-contained bearing inner ring reuse method |
Non-Patent Citations (4)
| Title |
|---|
| 东莞市TR轴承集团有限公司编: "《滚动轴承与现代带座轴承的选用》", 28 February 1997, 机械工业出版社 * |
| 周有华等: "《中国轴承商贸指南》", 31 May 2000, 海洋出版社 * |
| 王德志: "《滚动轴承的诊断与修复》", 31 May 1994, 中国铁道出版社 * |
| 陈功彬等: "《大型轴承修复的实践》", 《南方金属》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2818374C1 (en) * | 2023-11-20 | 2024-05-02 | Общество С Ограниченной Ответственностью "Тек-Ком Холдинг" | Repair method of axle box tapered roller case bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104422693B (en) | The qualitative checking method of the small linear discontinuities of cold rolling roller surface | |
| CN109865982A (en) | It is a kind of for the large and medium-sized completely new renovation technique for scrapping backing roll | |
| CN102002707A (en) | Laser repairing method of damaged finishing roller | |
| CN103934644A (en) | Manufacturing method for vibration-proof strip assembly of nuclear power unit vapor generator | |
| CN102248224A (en) | Scraping method of main bearing shell of ball mill | |
| EP2694940A1 (en) | Method for fatigue assessment of rolling bearing | |
| CN108637600A (en) | A kind of main bearing of shield machine reproducing method | |
| CN110102958A (en) | A kind of optimization method that waste and old bearing recycles | |
| Statharas et al. | Microscopic examination of the fracture surfaces of a cold working die due to premature failure | |
| CN102152081A (en) | Manufacture method of vehicle rocker arm bearing | |
| Smolnicki et al. | Investigation into wear mechanisms of the bearing raceway used in bucket wheel excavators | |
| DK2195139T3 (en) | Method for inspection and reconditioning of machine components | |
| CN109108531B (en) | Roller surfacing repair pretreatment method | |
| CN108729963B (en) | Steam turbine set shafting fault prediction method and system | |
| CN108340123B (en) | Remanufacturing method for scrapped supporting roll of plate and strip mill | |
| CN103801903A (en) | Preparation method for anti-vibration bar assembly of steam generator of CAP1000 nuclear power unit | |
| CN102489933A (en) | Shield sealing contact surface restoring method | |
| CN104439879A (en) | Large coiling block remanufacturing method | |
| CN113020275A (en) | Aluminum foil roller repairing method | |
| CN109434754A (en) | A kind of thread-locking ring heat exchanger Bolt dismantling method | |
| KR100795742B1 (en) | Self-aligining roller bearing | |
| CN111373168B (en) | Rolling member, bearing, and method for manufacturing same | |
| CN115026511B (en) | Method for repairing gear tooth fracture of large gear ring of large and medium ball mill | |
| CN103659173A (en) | Anti-vibration strip component end cap for nuclear power unit vapor generator | |
| CN213317560U (en) | Checking tool for pinch rolls of slab continuous casting branch guide section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190809 |
|
| RJ01 | Rejection of invention patent application after publication |