CN103481183B - Bearing bush of supporting roller of rotary kiln does not stop production online controlled lapping method - Google Patents
Bearing bush of supporting roller of rotary kiln does not stop production online controlled lapping method Download PDFInfo
- Publication number
- CN103481183B CN103481183B CN201310430754.6A CN201310430754A CN103481183B CN 103481183 B CN103481183 B CN 103481183B CN 201310430754 A CN201310430754 A CN 201310430754A CN 103481183 B CN103481183 B CN 103481183B
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- China
- Prior art keywords
- supporting
- bearing bush
- oil
- rotary kiln
- roller
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
Abstract
The invention discloses a kind of bearing bush of supporting roller of rotary kiln not stop production online controlled lapping method, belong to bearing bush of supporting roller method for maintaining technical field, its technical essential comprises the steps: that (1) forces water filling cooling toward heating bearing shell place; (2) inject lubricating oil forced feed lubrication after cooling, adopt 0# waterproof abrasive paper while lubrication and be stained with spunyarn cloth and alternately supporting-roller shaft heating wire drawing point is not stopped production online polishing; (3), after polishing, adopt circulating cooling oil pump to inject gear oil to impaired support roller and carry out circulating lubricating, cleaning and secondary break-in, the duration is after 36 ~ 60 hours, more renew oil, and equipment recovers normal and uses; The present invention aims to provide a kind of handling safety, reliable, when supporting-roller shaft, watt not rupture, realize not slowing down online, do not cause the bearing bush of supporting roller of rotary kiln of secondary pollution not stop production online controlled lapping method; For the online reparation of bearing bush of supporting roller of rotary kiln.
Description
Technical field
The present invention relates to a kind of method for maintaining of bearing bush of supporting roller of rotary kiln, more particularly, particularly relate to a kind of bearing bush of supporting roller of rotary kiln and not stop production online controlled lapping method.
Background technology
The problem of rotary kiln bearing shell heating is modal situation in running, and improving one of factor of the running rate most critical of rotary kiln is exactly the heating problem solving kiln bearing shell.Support roller, as the fulcrum of rotary kiln in supporter's motion, subjects thermic load, material load and kiln deadweight three large load, therefore protects bearing bush of supporting roller, makes it normal safe operation can seem particularly important.
Current bearing bush of supporting roller of rotary kiln heating, damage all must stop kiln or the underproduction cannot realize online reparation that do not stop production, general all will employing stops production or deceleration process, slow down and increased the weight of the heavy burden of injured bearing shell, increase the time of process, waste more lubricating oil, add maintenance cost not say, a large amount of oil mixing with water pollutes environment, if to deal with improperly or not thorough, will confuse by superficial phenomenon, add that profit is difficult to mixing and can not forms oil film in injured supporting-roller shaft, so easily cause axis tile, to turn over watt, bring unnecessary secondary damage to the person and equipment, running into time bearing shell generates heat more serious only takes the method for stopping kiln grinding or changing bearing shell to process, even if changing bearing shell also may not just process perfect, because the reason of journal bearing overheat is numerous, if thoroughly do not find, get rid of heating cause, the new watt of old axle of original still running-in period will be made again to cause damage.
Summary of the invention
The object of the invention is to for above-mentioned the deficiencies in the prior art, a kind of handling safety, reliable is provided, when bearing bush of supporting roller does not rupture, realize not slowing down online, do not cause the bearing bush of supporting roller of rotary kiln of secondary pollution not stop production online controlled lapping method.
Technical scheme of the present invention is achieved in that a kind of bearing bush of supporting roller of rotary kiln does not stop production online controlled lapping method, and wherein the method comprises the steps: that (1) forces water filling cooling toward heating bearing shell place; (2) inject lubricating oil forced feed lubrication after cooling, adopt 0# waterproof abrasive paper while lubrication and be stained with spunyarn cloth and alternately supporting-roller shaft heating wire drawing point is not stopped production online polishing; (3), after polishing, adopt circulating cooling oil pump to inject gear oil to impaired support roller and carry out circulating lubricating, cleaning and secondary break-in, the duration is after 36 ~ 60 hours, more renew oil, and equipment recovers normal and uses.
Above-mentioned bearing bush of supporting roller of rotary kiln does not stop production in online controlled lapping method, after the described online polishing of step (2), need repeat step (1) and step (2) several times, until the smooth and water-cooling bearing liner of supporting-roller shaft surface recovery does not generate heat.
Above-mentioned bearing bush of supporting roller of rotary kiln does not stop production in online controlled lapping method, and the water injection time described in step (1) is 8 ~ 20 minutes.
Above-mentioned bearing bush of supporting roller of rotary kiln does not stop production in online controlled lapping method, and the online polishing time described in step (2) is 5 ~ 12 minutes.
Above-mentioned bearing bush of supporting roller of rotary kiln does not stop production in online controlled lapping method, and the condition of the more renew oil described in step (3) is persistent loop oiling 36 ~ 54 hours, and axle temperature and oil temperature are stablized and be no more than 45 DEG C simultaneously.
Above-mentioned bearing bush of supporting roller of rotary kiln does not stop production in online controlled lapping method, during circulation oiling described in step (3), adopts 20 meters of ring-type copper pipes to carry out cooling Posterior circle as water cooler to oil return and uses.
After the present invention adopts said method, compared with prior art, there is following advantage:
(1) adopt and force cooling and forced feed lubrication to combine, under the effect of forced feed lubrication, make supporting-roller shaft and watt between form oil film, ensure not axis tile, not turn over watt, thus ensure the normal operating forcing to polish;
(2) adopt 0# waterproof abrasive paper and be stained with spunyarn cloth and alternately supporting-roller shaft heating wire drawing point is not stopped production online polishing, reach the refining effect that cutting output is little and fast, prevent the excessive or sand paper sand grains of cutting output from coming off and causing the secondary damage to bearing bush of supporting roller;
(3) by pressure cooling repeatedly and forced feed lubrication, polishing, both can prevent from long-time polishing from causing bearing bush of supporting roller temperature to rise too high affecting equipment normally working, the cutting end that polishing can be made again to produce is taken away rapidly, thus improve secondary grinding sympodium with watt fineness, ensure running-in effect;
(4) circulating cooling oil pump is adopted to carry out circulation fuel feeding, can supporting-roller shaft and watt between fast form stable oil film, effectively take away the heat that secondary break-in produces simultaneously, and wash away the cutting end of forcing polishing to produce, thus improve secondary grinding sympodium with watt fineness, ensure that break-in can get a desired effect.
(5) mode of the on-line maintenance that do not stop production is adopted, the reason can getting rid of journal bearing overheat for technical staff provides very effective help, technical staff can while on-line maintenance, careful investigation is carried out to each key component of whole equipment, make technical staff can find reason fast, in time, exactly, thus thoroughly solving heating problem, this maintenance that stops production cannot realize.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, but do not form any limitation of the invention.
A kind of bearing bush of supporting roller of rotary kiln of the present invention does not stop production online controlled lapping method, and the method comprises the steps:
(1) force water filling cooling toward heating bearing shell place, water injection time is 8 ~ 20 minutes, makes bearing shell place be cooled to normal temperature; Water filling is forced to be directly adopt water filling to replace lubricating oil to cool heating bearing shell, to realize the quick cooling of heating bearing shell.
(2) forced feed lubrication of 320# gear lubricant is injected after cooling, adopt 0# waterproof abrasive paper while lubrication and be stained with spunyarn cloth and alternately supporting-roller shaft heating wire drawing point is not stopped production online polishing, Reusability after 0# waterproof abrasive paper can clean with diesel oil, the polishing time is 5 ~ 12 minutes, cross polishing for a long time, the temperature at bearing shell place can be caused too high, and there will be too much cutting foot couple bearing shell and cause secondary damage; Adopt 0# waterproof abrasive paper to coordinate with the holder axle run fast under the effect of lubricating oil and grind supporting-roller shaft, the refining effect that cutting output is little and fast can be reached.If adopt other modes, the mode that the triangular scraper of such as prior art coordinates with fabric disc, then cannot realize the on-line grinding that do not stop production, because triangular scraper cuts easily produce larger cutting end, and the fabric disc chance water grains of sand easily come off, all secondary damage bearing bush of supporting roller can be caused.Further, because oil mixing with water lubricant effect is poor, supporting-roller shaft is difficult to form oil film, thus can not ensure that support roller does not turn over watt, not axis tile.Only have forced feed lubrication guarantee supporting-roller shaft and watt between the formation of oil film.Forced feed lubrication of the present invention, the phenomenon of referring to when impaired bearing bush of supporting roller normally cannot form film lubrication, causing axis tile for preventing bearing bush of supporting roller without oil, to turn over watt, injects lubricating oil and forces to lubricate to impaired bearing shell.In addition, forced feed lubrication can also assist 0# waterproof abrasive paper, makes the supporting-roller shaft after grinding have good fineness.
(3) repeat step (1) and step (2) several times, number of times is 3 ~ 25 times, and preferred number of times is 3 ~ 8 times, and when heating cause is more special, more difficult when investigating thoroughly, then number of times will correspondingly increase, until the smooth and water-cooling bearing liner of supporting-roller shaft surface recovery does not generate heat.
(4) after polishing, adopt circulating cooling oil pump to inject 320# gear oil to impaired support roller and carry out circulating lubricating, cleaning and secondary break-in, duration is 36 ~ 60 hours, the preferred time is 36 ~ 54 hours, axle temperature and oil temperature are stablized and are no more than 45 DEG C simultaneously, more renew oil, equipment recovers normal and uses.For increasing operation rate, ensureing that recycle oil can be cooled fast, during circulation oiling, adopting 20 meters of ring-type copper pipes to carry out cooling Posterior circle as water cooler to oil return and using.Circulating cooling oil pump is adopted to carry out circulation fuel feeding, can supporting-roller shaft and watt between fast form stable oil film, effectively take away the heat that secondary break-in produces simultaneously, and wash away the cutting end of forcing polishing to produce, thus improve secondary grinding sympodium with watt fineness, ensure that break-in can get a desired effect.
In the process of carrying out aforesaid operations, technical staff can investigate the heating cause of equipment, due to the work of equipment consistently online, therefore technical staff can obtain the true cause of equipment heating fast, in time, exactly, thus thoroughly solve the heating problem of bearing bush of supporting roller, ensure the normal work of equipment.
Experimental example 1
Journal bearing overheat, temperature 90 DEG C, determine non-electrical report reason cause journal bearing overheat and temperature higher than 52 DEG C time, adopt method of the present invention, concrete steps are as follows:
(1) force water filling cooling toward heating bearing shell place, water injection time is 8 minutes;
(2) inject the forced feed lubrication of 320# gear lubricant after cooling, adopt 0# waterproof abrasive paper and be stained with spunyarn cloth alternately not stop production online polishing to supporting-roller shaft heating wire drawing point while lubrication, the polishing time is 5 minutes;
(3) repeat step (1) and step (2) several times, number of times is preferably 3 times, until the smooth and water-cooling bearing liner of supporting-roller shaft surface recovery does not generate heat.
(4) after polishing, adopt circulating cooling oil pump to inject 320# gear oil to impaired support roller and carry out circulating lubricating, cleaning and secondary break-in, the duration is 36 hours, and axle temperature and oil temperature are stablized and be no more than 45 DEG C simultaneously, more renew oil, equipment recovers normal and uses.
Experimental example 2
Journal bearing overheat, temperature 80 DEG C, determine non-electrical report reason cause journal bearing overheat and temperature higher than 52 DEG C time, adopt method of the present invention, concrete steps are as follows:
(1) force water filling cooling toward heating bearing shell place, water injection time is 10 minutes;
(2) inject the forced feed lubrication of 320# gear lubricant after cooling, adopt 0# waterproof abrasive paper and be stained with spunyarn cloth alternately not stop production online polishing to supporting-roller shaft heating wire drawing point while lubrication, the polishing time is 10 minutes;
(3) repeat step (1) and step (2) several times, number of times is preferably 8 times, until the smooth and water-cooling bearing liner of supporting-roller shaft surface recovery does not generate heat.
(4) after polishing, adopt circulating cooling oil pump to inject 320# gear oil to impaired support roller and carry out circulating lubricating, cleaning and secondary break-in, the duration is 48 hours, and axle temperature and oil temperature are stablized and be no more than 45 DEG C simultaneously, more renew oil, equipment recovers normal and uses.
Experimental example 3
Journal bearing overheat, temperature 70 C, determine non-electrical report reason cause journal bearing overheat and temperature higher than 52 DEG C time, adopt method of the present invention, concrete steps are as follows:
(1) force water filling cooling toward heating bearing shell place, water injection time is 20 minutes;
(2) inject the forced feed lubrication of 320# gear lubricant after cooling, adopt 0# waterproof abrasive paper and be stained with spunyarn cloth alternately not stop production online polishing to supporting-roller shaft heating wire drawing point while lubrication, the polishing time is 12 minutes;
(3) repeat step (1) and step (2) several times, number of times is preferably 12 times, until the smooth and water-cooling bearing liner of supporting-roller shaft surface recovery does not generate heat.
(4) after polishing, adopt circulating cooling oil pump to inject 320# gear oil to impaired support roller and carry out circulating lubricating, cleaning and secondary break-in, the duration is 60 hours, and axle temperature and oil temperature are stablized and be no more than 45 DEG C simultaneously, more renew oil, equipment recovers normal and uses.
Experimental example 4
Journal bearing overheat, temperature 70 C, determine non-electrical report reason cause journal bearing overheat and temperature higher than 52 DEG C time, adopt method of the present invention, concrete steps are as follows:
(1) force water filling cooling toward heating bearing shell place, water injection time is 15 minutes;
(2) inject the forced feed lubrication of 320# gear lubricant after cooling, adopt 0# waterproof abrasive paper and be stained with spunyarn cloth alternately not stop production online polishing to supporting-roller shaft heating wire drawing point while lubrication, the polishing time is 8 minutes;
(3) repeat step (1) and step (2) several times, number of times is preferably 25 times, until the smooth and water-cooling bearing liner of supporting-roller shaft surface recovery does not generate heat.
(4) after polishing, adopt circulating cooling oil pump to inject 320# gear oil to impaired support roller and carry out circulating lubricating, cleaning and secondary break-in, the duration is 54 hours, and axle temperature and oil temperature are stablized and be no more than 45 DEG C simultaneously, more renew oil, equipment recovers normal and uses.
Since enterprise adopts " bearing bush of supporting roller of rotary kiln heating on-line system Ginding process ", carry out journal bearing overheat process prediction scheme at ordinary times, and adopt pressure cooling, controlled lapping, forced feed lubrication, never affect production because journal bearing overheat stops kiln over 11 years, also do not change one piece watt.Along with the accumulation of experience, found support roller heating cause, ahead of time process, present journal bearing overheat phenomenon also obviously reduces, and Supporting annulus temperature of generating heat is stable at present, and from then on running rate has had guarantee, produced and had guarantee, the performance of enterprises just to have guarantee.
Claims (5)
1. bearing bush of supporting roller of rotary kiln does not stop production an online controlled lapping method, it is characterized in that, the method comprises the steps: (1) forces water filling cooling toward heating bearing shell place; (2) inject lubricating oil forced feed lubrication after cooling, adopt 0# waterproof abrasive paper while lubrication and be stained with spunyarn cloth and alternately supporting-roller shaft heating wire drawing point is not stopped production online polishing; After online polishing, step (1) and step (2) several times need be repeated, until the smooth and water-cooling bearing liner of supporting-roller shaft surface recovery does not generate heat; (3), after polishing, adopt circulating cooling oil pump to inject gear oil to impaired support roller and carry out circulating lubricating, cleaning and secondary break-in, the duration is after 36 ~ 60 hours, more renew oil, and equipment recovers normal and uses.
2. bearing bush of supporting roller of rotary kiln according to claim 1 does not stop production online controlled lapping method, and it is characterized in that, the water injection time described in step (1) is 8 ~ 20 minutes.
3. bearing bush of supporting roller of rotary kiln according to claim 1 does not stop production online controlled lapping method, and it is characterized in that, the online polishing time described in step (2) is 5 ~ 12 minutes.
4. bearing bush of supporting roller of rotary kiln according to claim 1 does not stop production online controlled lapping method, it is characterized in that, the condition of the more renew oil described in step (3) is persistent loop oiling 36 ~ 54 hours, and axle temperature and oil temperature are stablized and be no more than 45 DEG C simultaneously.
5. bearing bush of supporting roller of rotary kiln according to claim 1 does not stop production online controlled lapping method, it is characterized in that, during circulation oiling described in step (3), adopts 20 meters of ring-type copper pipes to carry out cooling Posterior circle as water cooler to oil return and uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310430754.6A CN103481183B (en) | 2013-09-18 | 2013-09-18 | Bearing bush of supporting roller of rotary kiln does not stop production online controlled lapping method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310430754.6A CN103481183B (en) | 2013-09-18 | 2013-09-18 | Bearing bush of supporting roller of rotary kiln does not stop production online controlled lapping method |
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| CN103481183A CN103481183A (en) | 2014-01-01 |
| CN103481183B true CN103481183B (en) | 2016-03-23 |
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| CN201310430754.6A Expired - Fee Related CN103481183B (en) | 2013-09-18 | 2013-09-18 | Bearing bush of supporting roller of rotary kiln does not stop production online controlled lapping method |
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| CN104369066B (en) * | 2014-09-16 | 2018-11-06 | 天津凡进模具有限公司 | The wire-drawing processing method of the asymmetric cylindrical shape curved surface core surface of injection mold |
| CN107253121A (en) * | 2017-02-21 | 2017-10-17 | 北京宏科瑞达工程技术有限公司 | A kind of hot grinding apparatus of rotary kiln tyre |
| CN108058069A (en) * | 2017-12-14 | 2018-05-22 | 常德金德新材料科技股份有限公司 | A kind of polishing process of coating blade |
| CN109465678A (en) * | 2018-11-16 | 2019-03-15 | 金隅冀东水泥(唐山)有限责任公司唐山分公司 | Bearing bush of supporting roller of rotary kiln on-line grinding method |
| CN109623421A (en) * | 2018-12-07 | 2019-04-16 | 上海新建重型机械有限公司 | The restorative procedure of fixture and rotary kiln bearing of conveyor idler group |
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| JPH06328321A (en) * | 1993-05-20 | 1994-11-29 | Kuroki Kogyosho:Kk | Field tooth flank working method for kiln driving ring type gear |
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| DE10004746A1 (en) * | 2000-02-03 | 2001-10-31 | Thorsten Lueddecke | Clamping and rotating device has base bush clamped in lathe, into which fitting mandrel is pushed |
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