CN101691966A - Method for repairing rotary-kiln supporting-wheel bearing packs - Google Patents
Method for repairing rotary-kiln supporting-wheel bearing packs Download PDFInfo
- Publication number
- CN101691966A CN101691966A CN200910236340A CN200910236340A CN101691966A CN 101691966 A CN101691966 A CN 101691966A CN 200910236340 A CN200910236340 A CN 200910236340A CN 200910236340 A CN200910236340 A CN 200910236340A CN 101691966 A CN101691966 A CN 101691966A
- Authority
- CN
- China
- Prior art keywords
- supporting
- wheel bearing
- kiln
- rotary
- bearing
- 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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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000010720 hydraulic oil Substances 0.000 description 7
- 230000008439 repair process Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 238000007790 scraping Methods 0.000 description 5
- 241000630329 Scomberesox saurus saurus Species 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 241001275902 Parabramis pekinensis Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention provides a method for repairing rotary-kiln supporting-wheel bearing packs, and relates to a rotary-kiln maintenance method used in metallurgical chemical industry and building material production, particularly in alumina production. The method is characterized in that a maintenance process comprises the following steps: (1) integrally assembling a rotary-kiln supporting-wheel bearing pack used for replacement; (2) performing positioning measurement on original position data of a damaged supporting-wheel bearing pack of a rotary kiln; (3) detaching the damaged supporting-wheel bearing pack from the rotary kiln and integrally hoisting the supporting-wheel bearing pack off; (4) hoisting the supporting-wheel bearing pack assembled for replacement to the original installation position of the damaged supporting-wheel bearing pack; and (5) fixedly connecting the supporting-wheel bearing pack integrally assembled for replacement with the rotary kiln. By assembling the rotary-kiln supporting-wheel bearing pack consisting of a plurality of components into one component in advance before maintenance, the method has the advantages of short time of on-site integral installation, high precision, improved working environment of construction workers, reduction in labor intensity and good economic benefit.
Description
Technical field
A kind of method for repairing rotary-kiln supporting-wheel bearing packs relates to a kind of method for maintaining that is used for the rotary kiln of chemical metallurgy, building materials production process, particularly aluminum oxide production process.
Background technology
Rotary kiln is widely used in industries such as chemical metallurgy, building materials, its supporting arrangement mainly adopts the bearing of conveyor idler group, each supporting gear is provided with two groups of support rollers, under the drive of wheel band, rotate, supporting simultaneously and going up kiloton kiln body weight, wearing and tearing, eat away faults such as piece, tile kilning, fatigue fracture and happen occasionally, modal fault is the bearing shell heating, need carry out scraping and repair.
At present, method for repairing rotary-kiln supporting-wheel bearing packs is local replacing parts or bearing shell scraping reparation at the scene.The support roller group mainly is made up of support roller, supporting-roller shaft, two bearing block three parts, be provided with spherical bush, bearing shell in the bearing block, other has auxiliary equipments such as thrust ring, snap ring, pressing plate, briquetting, food tray, oil skipper, oil wiper, sealing ring, also is furnished with cooling system, lubricating system, heat insulation facility etc.It is to open bearing cap that master operation is repaired in bearing shell heating, the food tray oil skipper of dismantling, and the supporting-roller shaft of slinging is taken out brasses and sphere, changes or repair need carry out scraping, scrape the back assembling and grind, and assembles the bearing of conveyor idler group after reaching assembly technical requirement.Site operation needs 72 hours at least, not only the repairing time long, influence is produced, and environment is abominable, quality is difficult for assurance.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, provides a kind of and can effectively shorten the spot repair time, reduces influence to production process, improves operating environment, guarantees the method for repairing rotary-kiln supporting-wheel bearing packs of repair quality.
The objective of the invention is to be achieved through the following technical solutions.
A kind of method for repairing rotary-kiln supporting-wheel bearing packs is characterized in that its maintenance process comprises the following steps:
(1) the overall package rotary-kiln supporting bearing of conveyor idler group that is used to change;
(2) rotary kiln is damaged bearing of conveyor idler group raw position data and position measurement;
(3) the bearing of conveyor idler group of damaging is dismantled from rotary kiln, the bearing of conveyor idler group integral body of damaging is hung;
(4) will assemble be used to change the former installation site of bearing of conveyor idler group that the bearing of conveyor idler group winches to damage;
(5) good bearing of conveyor idler group is fixedlyed connected with rotary kiln will to be used to change overall package.
Method of the present invention adopts the on-the-spot integral replacing of standby bearing of conveyor idler group.In advance can be in a standby cover same model bearing of conveyor idler group in the workshop.When on-the-spot bearing of conveyor idler group damage needed to repair, overall pulling down was the integral hoisting of replacement bearing group.Operations such as reparations such as the replacing of food tray oil skipper, seal box, axial plane and parts inspection, cleaning, bearing shell scraping assembling are all carried out in advance in the workshop, have shortened production scene maintenance time greatly, and are effective.Because in shop assembled and reparation, environment is good, the time abundance, bearing shell scraping and parts assembling quality can guarantee.The rotary-kiln supporting bearing of conveyor idler group that is made from multiple components is repaired and is assembled into parts in advance, and the on-the-spot integral installation time is short, and the precision height, improves workmen's operating environment simultaneously and reduces labor intensity, and it is considerable to create economic benefit.
Description of drawings
Fig. 1 is a rotary-kiln supporting bearing of conveyor idler group of the present invention structural representation when repairing.
The specific embodiment
A kind of method for repairing rotary-kiln supporting-wheel bearing packs, its maintenance process comprise the following steps: the rotary-kiln supporting bearing of conveyor idler group that (1) overall package is used to change; (2) rotary kiln is damaged bearing of conveyor idler group raw position data and position measurement; (3) the bearing of conveyor idler group of damaging is dismantled from rotary kiln, the bearing of conveyor idler group integral body of damaging is hung; (4) will assemble be used to change the former installation site of bearing of conveyor idler group that the bearing of conveyor idler group winches to damage; (5) good bearing of conveyor idler group is fixedlyed connected with rotary kiln will to be used to change overall package.
Specific operation process is as follows:
1. under wheel is with 1, set hydraulic oil top 3, and certain fixing point pushes up certain fixing point vertical range H to oil under the meter wheel band
1
2. find out the support roller face and wheel band contact point that need to repair bearing of conveyor idler group 2, and perform sign, go up picture bar line segment at the force direction (wheel band center and contact point line) that is subjected to of contact point at wheel band edge face.
3. take suitable height to top, hydraulic oil top wheel, fixing point is to oily top fixing point vertical range H under the meter wheel band
2
4. the gap L that meter wheel band and support roller face leave on wheel band edge face sign line segment direction.
5. after measuring end, remove jackscrew and barrier, hang away damage bearing of conveyor idler group with boom hoisting.
6. the relative position of fixing standby bearing of conveyor idler group bearing block and supporting-roller shaft according to damaging the position of bearing of conveyor idler group 2 on bearing of conveyor idler base 4, lifts standby bearing of conveyor idler group and puts in place substantially.
7. fixing point sees whether equal H to hydraulic oil top fixing point vertical range under the repetition measurement wheel band
2, prevent that the hydraulic oil top from descending automatically.As descending, work being raised to original height.
8. utilize jack, jack to cooperate and make the wheel band equal L in the spacing that is subjected to force direction with the support roller face.
9. recovery jackscrew, the hydraulic oil that falls top, and fixing point sees whether equal H to hydraulic oil top fixing point vertical range under the repetition measurement wheel band
1, prevent hydraulic oil top sinking (general deflection is very little, and is little to the axis influence).
10. check whether parts are intact in the bearing, open the bearing upper cover reparation in case of necessity.Recover facilities such as cooling water pipe, lubricating oil pipe, heat shield.Finish the reparation of bearing of conveyor idler group integral replacing.
Claims (1)
1. a method for repairing rotary-kiln supporting-wheel bearing packs is characterized in that its maintenance process comprises the following steps:
(1) the overall package rotary-kiln supporting bearing of conveyor idler group that is used to change;
(2) rotary kiln is damaged bearing of conveyor idler group raw position data and position measurement;
(3) the bearing of conveyor idler group of damaging is dismantled from rotary kiln, the bearing of conveyor idler group integral body of damaging is hung;
(4) will assemble be used to change the former installation site of bearing of conveyor idler group that the bearing of conveyor idler group winches to damage;
(5) good bearing of conveyor idler group is fixedlyed connected with rotary kiln will to be used to change overall package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910236340A CN101691966A (en) | 2009-10-16 | 2009-10-16 | Method for repairing rotary-kiln supporting-wheel bearing packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910236340A CN101691966A (en) | 2009-10-16 | 2009-10-16 | Method for repairing rotary-kiln supporting-wheel bearing packs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101691966A true CN101691966A (en) | 2010-04-07 |
Family
ID=42080676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910236340A Pending CN101691966A (en) | 2009-10-16 | 2009-10-16 | Method for repairing rotary-kiln supporting-wheel bearing packs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101691966A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852547A (en) * | 2010-06-10 | 2010-10-06 | 中国铝业股份有限公司 | Rotary kiln heavy gear ring repairing method |
| CN103264256A (en) * | 2013-05-31 | 2013-08-28 | 上海宝冶集团有限公司 | Replacement method of lower bearing of powder concentrator of vertical mill |
| CN103322046A (en) * | 2012-03-22 | 2013-09-25 | 沈阳铝镁设计研究院有限公司 | Supporting roller bearing set for rotary equipment |
| CN103569919A (en) * | 2012-07-23 | 2014-02-12 | 金东纸业（江苏）股份有限公司 | Hoisting device |
-
2009
- 2009-10-16 CN CN200910236340A patent/CN101691966A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852547A (en) * | 2010-06-10 | 2010-10-06 | 中国铝业股份有限公司 | Rotary kiln heavy gear ring repairing method |
| CN103322046A (en) * | 2012-03-22 | 2013-09-25 | 沈阳铝镁设计研究院有限公司 | Supporting roller bearing set for rotary equipment |
| CN103322046B (en) * | 2012-03-22 | 2016-04-27 | 沈阳铝镁设计研究院有限公司 | A kind of bearing of conveyor idler group on turning round equipment |
| CN103569919A (en) * | 2012-07-23 | 2014-02-12 | 金东纸业（江苏）股份有限公司 | Hoisting device |
| CN103569919B (en) * | 2012-07-23 | 2016-12-21 | 金东纸业（江苏）股份有限公司 | Hoisting apparatus |
| CN103264256A (en) * | 2013-05-31 | 2013-08-28 | 上海宝冶集团有限公司 | Replacement method of lower bearing of powder concentrator of vertical mill |
| CN103264256B (en) * | 2013-05-31 | 2015-09-30 | 上海宝冶集团有限公司 | The replacing options of vertical grinder powder concentrator lower bearing |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100407 |