CN102744550B - Roll repairing method - Google Patents
Roll repairing method Download PDFInfo
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- CN102744550B CN102744550B CN201210001982.7A CN201210001982A CN102744550B CN 102744550 B CN102744550 B CN 102744550B CN 201210001982 A CN201210001982 A CN 201210001982A CN 102744550 B CN102744550 B CN 102744550B
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- roll
- bearing block
- lathe
- labyrinth
- repair method
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Abstract
The invention discloses a roll repairing method which is used for repairing a medium-and-small sized bar and wire roughing mill roll. A device for implementing the method comprises a roll and a bearing seat which is installed on the roll. The roll repairing method includes that step one, the roll and the bearing seat are simultaneously lifted on a roll machine tool, and the bearing seat is fixed; and step two, a roll lathe is started to repair the roll. During the step one, the roll and the bearing seat are simultaneously lifted on the roll machine tool to process the roll, the disassembly operation for the bearing seat is not required, and the problem that assembly and disassembly of the roll are complicated caused by the fact that the roll is required to be disassembled from the bearing seat during the repairing process for the roll in prior art can be solved.
Description
Technical field
The present invention relates to Roller Machining technical field, particularly a kind of roll repair method.
Background technology
Roll is to make (stocking) metal produce the instrument of plastic deformation, is the important consumable part that determines milling train efficiency and mill bar quality.Roll is the strength member on steel rolling mill's rolling mill, and the pressure producing while utilizing a pair of or one group of roll rolling rolls stone roller steel.The impact of Dynamic And Static Loads, wearing and tearing and variations in temperature when it mainly bears rolling.Due to the squeezing action of roll to metal, the surface of roll can inevitably produce damage or deformation in use for some time, therefore, in roll life cycle, need to repeatedly reprocess.
In prior art, the repair of breaker roll adopts turning repair technique more, and turning repair is mainly, with lathe tool, the roll in rotation is carried out to turning processing, and turning repair technique concrete steps are; First, roll is disassembled from bearing block; Then, roll is installed on roll lathe; After Roller Machining centering, open roll lathe breaker roll and cut reparation, after breaker roll reparation, also need roll to put in back to bearing block.
In steel rolling production-line, roughing unit mill speed is slower, generally all below 1.5m/s, is sheathed on bearing specification on roll large, and under a rolling cycle, although roll working surface experience wear, bearing and grease seal part etc. do not damage.For the turning body of roll again, repeatedly dismantling in bearing block process, because roll volume is large, Heavy Weight, make bearing block complicated operation dismounting difficulty, careless slightly, will damage seal, break bearing, enlargement loss.
In sum, how to solve in the process of repairing at breaker roll in prior art, roll need to be pulled down and the roll that brings removes and installs complexity from bearing block, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is for a kind of roll repair method is provided, and the method can realize and solving in the process that prior art repairs at breaker roll, roll need to be pulled down and the roll dismounting that brings and complicated object is installed from bearing block.
For solving the problems of the technologies described above, the invention provides a kind of roll repair method, for to the reprocessing of middle-size and small-size excellent wire rod roughing roll, comprise roll and be installed on the bearing block on roll, comprise step:
1) described roll and described bearing block are lifted simultaneously and clamping to roll lathe, and fixing described bearing block;
2) starting roll lathe breaker roll repairs.
Preferably, reprocessing before roll first, adjust the moving labyrinth of installing on described roll and the concentricity of described roll and be consistent.
Preferably, reprocessing before roll first, in the force side of bearing block, the hanger that lifts use is set.
Preferably, described step 1) in specifically comprise step:
11) described roll and described bearing block are lifted to roll lathe simultaneously;
12) described hanger is connected on the lifting cross beam of described roll lathe;
13) use the chuck of roll lathe to fix the transmission side of described roll, and taking described moving labyrinth as basis of reference, adjust the axiality of roll and described chuck;
14) thimble of described roll lathe is withstood to relative one end of transmission side of described roll.
Preferably, described step 13) in, taking the cylindrical in described moving labyrinth as centering datum level, by dial gauge, beating of described moving labyrinth detected, beat as reference using this, adjust the axiality of roll and described chuck.
Preferably, described moving labyrinth is the moving labyrinths of 304 stainless steels, and the inside and outside circle fineness in described moving labyrinth is not less than 7 grades.
Preferably, described step 2) specifically comprise step:
21) from the center-right position feed of described roll, and make the bite of described roll lathe be moved to the left the left margin of described roll;
22) adjust secondary feed position, make the bite of described roll lathe in described step 21) the feed of feed position, and carry out roll reparation to the right and be worked into the edge, the right of described roll;
23) order repeating said steps 21) and described step 22).
Preferably, described step 2) also comprise step 24) lubricating grease of described bearing block is changed to described step 24) and with described step 21), described step 22) and described step 23) synchronize and carry out.
Preferably, described step 24) specifically comprise step:
241) open changing oil mouthful and oil drain out of described bearing block;
242) in the process of rolling at described roll, from the described mouthful filling new oil fat of changing oil.
Preferably, also comprise step 3) smear high temperature lithium saponify in the outside in described moving labyrinth.
Roll repair method provided by the present invention, is a kind of method for middle-size and small-size excellent wire rod roughing roll is repaired, and comprises roll and is installed on the bearing block on roll.Roll repair method provided by the present invention comprises: step 1) described roll and described bearing block are lifted to roll lathe simultaneously, and fixing described bearing block; Step 2) start roll lathe breaker roll and repair.In roll repair method step 1 provided by the present invention) in, roll and bearing block are lifted to breaker roll on roll lathe simultaneously and process, do not need to carry out again the dismantlement work of bearing block, can realize and solving in the prior art process of repairing at breaker roll, roll need to be pulled down and the roll dismounting that brings and complicated object is installed from bearing block.
Brief description of the drawings
Fig. 1 is structural representation when roll lathe breaker roll is repaired in an embodiment of the present invention;
Fig. 2 is the flow chart of roll repair method in an embodiment of the present invention;
In Fig. 1, the corresponding relation of component names and Reference numeral is:
Roll 1;
Bearing block 2; Hanger 21;
Moving labyrinth 3;
Roll lathe 4; Chuck 41; Thimble 42.
Detailed description of the invention
Core of the present invention is for a kind of roll repair method is provided, and the method can realize and solving in the process that prior art repairs at breaker roll, roll need to be pulled down and the roll dismounting that brings and complicated object is installed from bearing block.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is structural representation when roll lathe breaker roll is repaired in an embodiment of the present invention; Fig. 2 is the flow chart of roll repair method in an embodiment of the present invention.
Roll repair method provided by the present invention, is a kind of method for middle-size and small-size excellent wire rod roughing roll is repaired, and comprises roll 1 and is installed on the bearing block 2 on roll 1.Roll repair method provided by the present invention comprises: step 1) roll 1 and bearing block 2 are lifted to roll lathe 4 simultaneously, and fixed bearing block 2; Step 2) start roll lathe 4 breaker rolls 1 and repair.In roll repair method step 1 provided by the present invention) in, first roll 1 is winched to roll lathe 4 places together with bearing block 2, then realize the installation of roll 1 on roll lathe 4 by fixed bearing block 2.In the present invention, roll 1 and bearing block 2 are lifted to breaker roll 1 on roll lathe 4 simultaneously and process, do not need to carry out again the dismantlement work of bearing block 2, can realize and solving in the prior art process of repairing at breaker roll 1, roll 1 need to be pulled down and complicated object is dismantled and installed to the roll 1 that brings from bearing block 2.
The bite of repairing use for the surface of breaker roll 1 on roll lathe 4 when breaker roll 1 is repaired is rectilinear movement, therefore needs roll 1 to rotate the circumferential cutting that realizes roll 1.In order to realize the even cutting of bite on roll 1, roll 1 ensures not have eccentric throw in the process of rotating as far as possible, so first carry out the concentricity between axis and the attachment means of roll 1 in the time that roll 1 is loaded on roll 1 lathe.Roll repair method provided by the invention is simultaneously by roll 1 and be installed on bearing block 2 on roll 1 and lift to roll lathe 4 and repair simultaneously, because bearing block 2 is the ends that are installed on roll 1, when concentricity between axis and the attachment means of carrying out roll 1 is measured, breaker roll 1 is directly measured comparatively complicated, and there is the impact of bearing block 2, also will increase the error of measuring.In order to facilitate the measurement of the concentricity between axis and the attachment means of roll 1, the present invention has carried out benchmark conversion to measuring.This benchmark conversion realizes by moving labyrinth 3, specifically arranges as follows: moving labyrinth 3 is set to be consistent with the concentricity of roll 1.Design by said structure, can move the concentricity between labyrinth 3 and attachment means by detection, thereby determine the concentricity between roll 1 and attachment means.
It should be noted that at this: moving labyrinth 3 is set to be consistent with the concentricity of roll 1, can be understood as the moving center line in labyrinth 3 and the axis coaxle (coincidence) of roll 1 in the ideal situation.In the middle of reality, there is deviation in the moving center line in labyrinth 3 and the axis of roll 1, if this deviation within the range of permission, also can think and move the center line in labyrinth 3 and the axis coaxle of roll 1.In addition, the concentricity between above-mentioned moving labyrinth 3 and attachment means can be understood as, two virtual axis that the relative fixture installing additional for breaker roll 1 has on roll 1 lathe, the moving center line in labyrinth 3 and the concentricity of this virtual axis.
Based on above-described embodiment, in the time that roll 1 is clipped on roll lathe 4, affect rotationally for fear of bearing block 2 breaker rolls 1, bearing block 2 need to be fixed to setting, this bearing block 2 be fixedly installed for: cut when rotation at roll 1, bearing block 2 keeps fixing, and after roll 1 completes reparation, bearing block 2 can also unload from roll lathe 4.For the ease of the lifting of bearing block 2 and to being fixedly installed of bearing block 2, the present invention is provided with hanger 21 in the force side of bearing block 2, and hanger 21 can be used in the lifting of bearing block 2, can also be arranged on roll lathe 4 by hanger 21.Bearing block 2 is a kind of support component, in the time that bearing block 2 is positioned on frame or ground, breaker roll 1 is had to supporting role, and the gravity of roll 1 will impose on the bottom of bearing block 2, and therefore the force side of bearing block 2 also can be understood as the bottom of bearing block 2 in one embodiment.
Particularly, step comprises the steps:
11) roll 1 and bearing block 2 are lifted to roll lathe 4 simultaneously;
12) hanger 21 is connected on the lifting cross beam of roll lathe 4;
13) transmission side of roll 1 is used the chuck 41 of roll lathe 4 fixing, and to move labyrinth 3 as basis of reference, adjust the axiality of roll 1 and chuck 41;
14) thimble of roll lathe 4 42 is withstood to one end relative with transmission side on roll 1.
Wherein, step 12) for the present invention is to the concrete fixed form of the one of bearing block 2.Roll lathe 4 has lifting cross beam, can on lifting cross beam, be provided with the installation portion (as hook or latch) matching with hanger 21 set on bearing block 2, realizes the fixed installation of bearing block 2 by installation portion.Step 13) in adopt the transmission side of chuck 41 breaker rolls 1 to be fixed, this operation is same as the prior art, therefore here repeats no more.Need the transmission side of breaker roll 1 to make an explanation: roll 1 is in the time being rolled operation to metal, roll 1 is realized and being rotated by outside drive apparatus, generally outside drive apparatus is realized transmission by gear train, the input of gear train is connected with the power efferent of outside drive apparatus, the output of gear train is connected with one end of roll 1, and roll 1 is the transmission side of roll 1 for realizing with the output of gear train the one end being connected.
In step 13) in: to move labyrinth 3 as basis of reference, adjust the axiality of roll 1 and chuck 41.Its concrete operations are: taking the cylindrical that moves labyrinth 3 as centering datum level, by dial gauge, moving beating of labyrinth 3 detected, beated as reference using this, adjust the axiality of roll 1 and chuck 41.
Particularly, in one embodiment of the invention, moving labyrinth 3 adopts 304 stainless steels to make, and the inside and outside circle fineness in moving labyrinth 3 is 8 grades.Adopt stainless steel can make labyrinth 3 there is higher working strength as the making material in moving labyrinth 3, improve its service life.
The cutter cutting way that enters of breaker roll 1 of the present invention has also been made following adjustment: step 2) specifically comprise step 21) from the center-right position feed of roll 1, and make the bite of roll lathe 4 be moved to the left the left margin of roll 1; Step 22) adjust secondary feed position, make the bite of roll lathe 4 in step 21) the feed of feed position, and carry out roll 1 reparation to the right and be worked into the edge, the right of described roll 1; Step 23) order repeating said steps 21) and step 22).The body that cutter point is roll 1 that enters of above-mentioned bite is cut, the swaging clamp phenomenon that can avoid bite to cause from the side incision of roll 1.
In order to realize the machining of left and right directions, breaker roll lathe 4 of the present invention has been made part and has been improved, and roll lathe 4 is installed on the plate of movably sauntering on roll lathe 4 for carrying out the bite of cutting operation, and is provided with a bite.Can cut by left and right breaker roll 1 in order to realize the moving bite of the strip of sauntering, be provided with two bites on the plate of sauntering, the direction of its blade is set to respectively for left processing and right processing.Those skilled in the art are known, if realize the machining of bite breaker roll 1, realize cutwork thereby the blade on its cutter need to have certain angular deflection.
In the time adopting breaker roll 1 of the present invention to repair, roll 1 rotates, 2 of bearing blocks maintain static with respect to roll 1, it is identical that above-mentioned operating state and bearing block 2 are changed lubricating grease operating state, therefore in carrying out the reparation of roll 1, can also realize more changing jobs of bearing block 2 lubricating grease.Therefore, in one embodiment of the invention, step 2) also comprise step 24) lubricating grease of bearing block 2 is changed.Particularly, step 24) with step 21), step 22) and step 23) synchronize and carry out.
Step 24) specifically comprise: step 241) open changing oil mouthful and oil drain out of bearing block 2; Step 242) in the process of rolling at roll 1, from mouthful filling new oil fat of changing oil.In the time that new charging-up lubricant oil fat is constantly full of bearing block 2, waste and old lubricating grease is discharged from oil drain out, thereby realizes the replacing of bearing block 2 lubricating grease.
In order to improve the service behaviour in moving labyrinth 3, the present invention has also increased step 3) smear high temperature lithium saponify in the outside in moving labyrinth 3, lithium base grease is under exceedingly odious operating condition, also there is the lubricating grease of lubricated usefulness more by force, therefore smear high temperature lithium saponify in the outside in moving labyrinth 3 and can increase the lubricity in moving labyrinth 3, make it there is in the course of the work higher wearability, improve the service life in moving labyrinth 3.
Above a kind of roll repair method provided by the present invention is described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (6)
1. a roll repair method, for to the reprocessing of middle-size and small-size excellent wire rod roughing roll, comprises roll (1) and is installed on the bearing block (2) on roll (1), it is characterized in that, comprises step:
1) described roll (1) and described bearing block (2) are lifted simultaneously and clamping upper to roll lathe (4), and fixing described bearing block (2);
2) starting roll lathe repairs described roll (1);
Reprocessing first, roll (1) is front, adjusts the upper moving labyrinth (3) of installing of described roll (1) and is consistent with the concentricity of described roll (1);
Reprocessing first, roll (1) is front, in the force side of bearing block (2), the hanger (21) that lifts use is set;
In described step 1), specifically comprise step:
11) described roll (1) and described bearing block (2) are lifted to roll lathe (4) simultaneously;
12) described hanger (21) is connected on the lifting cross beam of described roll lathe (4);
13) transmission side of described roll (1) is used the chuck (41) of roll lathe (4) fixing, and taking described moving labyrinth (3) as basis of reference, adjust the axiality of roll (1) and described chuck (41);
14) thimble (42) of described roll lathe (4) is withstood to relative one end of transmission side of described roll (1);
In described step 13), taking the cylindrical in described moving labyrinth (3) as centering datum level, by dial gauge, beating of described moving labyrinth (3) detected, beated as reference using this, adjust the axiality of roll (1) and described chuck (41).
2. roll repair method according to claim 1, is characterized in that, described moving labyrinth (3) is the moving labyrinths of 304 stainless steels, and the inside and outside circle fineness in described moving labyrinth (3) is not less than 7 grades.
3. roll repair method according to claim 1, is characterized in that described step 2) specifically comprise step:
21) from the center-right position feed of described roll (1), and make the bite of described roll lathe (4) be moved to the left the left margin of described roll (1);
22) adjust secondary feed position, make the bite of described roll lathe (4) in described step 21) the feed of feed position, and carry out roll (1) reparation to the right and be worked into the edge, the right of described roll (1);
23) order repeating said steps 21) and described step 22).
4. roll repair method according to claim 3, it is characterized in that, described step 2) also comprise step 24) lubricating grease of described bearing block (2) is changed to described step 24) and with described step 21), described step 22) and described step 23) synchronize and carry out.
5. roll repair method according to claim 4, is characterized in that described step 24) specifically comprise step:
241) open changing oil mouthful and oil drain out of described bearing block (2);
242) in the process of rolling at described roll (1), from the described mouthful filling new oil fat of changing oil.
6. according to roll repair method described in claim 1 to 2 any one, it is characterized in that, also comprise that step 3) smears high temperature lithium saponify in the outside in described moving labyrinth (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210001982.7A CN102744550B (en) | 2012-01-05 | 2012-01-05 | Roll repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210001982.7A CN102744550B (en) | 2012-01-05 | 2012-01-05 | Roll repairing method |
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| Publication Number | Publication Date |
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| CN102744550A CN102744550A (en) | 2012-10-24 |
| CN102744550B true CN102744550B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210001982.7A Expired - Fee Related CN102744550B (en) | 2012-01-05 | 2012-01-05 | Roll repairing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103394706A (en) * | 2013-07-15 | 2013-11-20 | 庆阳市前进机械制造有限公司 | Removal-free repair turning machine for double rolls |
| CN105478918A (en) * | 2016-01-25 | 2016-04-13 | 南京宝泰特种材料股份有限公司 | Roller tooth profile processing method |
| CN108709061A (en) * | 2018-05-04 | 2018-10-26 | 中冶东方工程技术有限公司 | The open underwater support of one kind and application |
| CN113028995A (en) * | 2021-04-23 | 2021-06-25 | 慧诚自动化技术(宁波)有限公司 | Automatic detection device for detecting surface run-out degree of medium-large workpiece |
| CN114345942B (en) * | 2022-01-24 | 2024-05-07 | 上海鼎艺冶金科技有限公司 | Method for repairing bearing seat lining plate mounting surface on line based on laser tracker |
| CN114714042B (en) * | 2022-04-08 | 2023-12-19 | 邢台金隅冀东水泥有限公司 | Rubber coating abrasion repairing method for head wheel roller of kiln-entering elevator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1016765B (en) * | 1987-07-24 | 1992-05-27 | 大同特殊钢株式会社 | Method of repairing rolls of rolling mill and roll cutting apparatus |
| CN1089895A (en) * | 1993-01-19 | 1994-07-27 | 中国人民解放军运输工程学院 | The surface-defect repairing method of white cast iron roller |
| US6380514B1 (en) * | 1999-05-12 | 2002-04-30 | Samyoung Machinery Co., Ltd. | Automatic welding system for cylinder block recycling |
| CN101758359A (en) * | 2008-10-14 | 2010-06-30 | 上海和欣金属制品有限公司 | Backup roll reparation technique |
| CN101829879A (en) * | 2010-04-15 | 2010-09-15 | 张子益 | Method for restoring roll body of steel casting roll of twin-roll strip casting |
-
2012
- 2012-01-05 CN CN201210001982.7A patent/CN102744550B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1016765B (en) * | 1987-07-24 | 1992-05-27 | 大同特殊钢株式会社 | Method of repairing rolls of rolling mill and roll cutting apparatus |
| CN1089895A (en) * | 1993-01-19 | 1994-07-27 | 中国人民解放军运输工程学院 | The surface-defect repairing method of white cast iron roller |
| US6380514B1 (en) * | 1999-05-12 | 2002-04-30 | Samyoung Machinery Co., Ltd. | Automatic welding system for cylinder block recycling |
| CN101758359A (en) * | 2008-10-14 | 2010-06-30 | 上海和欣金属制品有限公司 | Backup roll reparation technique |
| CN101829879A (en) * | 2010-04-15 | 2010-09-15 | 张子益 | Method for restoring roll body of steel casting roll of twin-roll strip casting |
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| CN102744550A (en) | 2012-10-24 |
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