CN102744550A - Roll repairing method - Google Patents
Roll repairing method Download PDFInfo
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- CN102744550A CN102744550A CN2012100019827A CN201210001982A CN102744550A CN 102744550 A CN102744550 A CN 102744550A CN 2012100019827 A CN2012100019827 A CN 2012100019827A CN 201210001982 A CN201210001982 A CN 201210001982A CN 102744550 A CN102744550 A CN 102744550A
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- roll
- bearing block
- lathe
- repair method
- labyrinth
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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 the 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 of decision milling train efficient and mill bar quality.Roll is the strength member on steel rolling mill's rolling mill, and the pressure that produces when utilizing a pair of or one group of roll rolling rolls the stone roller steel.It mainly bears sound load, wearing and tearing and influence of temperature variation when rolling.Because roll is to the squeezing action of metal, the surface of roll can produce damage or deformation inevitably in use for some time, therefore in the roll life cycle, need repeatedly reprocess.
The turning renovation technique is adopted in the repair of breaker roll more in the prior art, and the turning reparation mainly is with lathe tool the roll in the rotation to be carried out turning processing, and turning renovation technique concrete steps do; At first, roll is disassembled from bearing block; Then, roll is installed on the roll lathe; After the Roller Machining centering, open roll lathe breaker roll and cut reparation, after the breaker roll reparation, also need roll be put in back to bearing block.
In steel rolling production-line, roughing unit mill speed is slower, and generally all below 1.5m/s, the bearing specification that is sheathed on the roll is big, and under a rolling cycle, although roll working surface experience wear, bearing and grease seal spare etc. do not damage.For the turning body of roll again, in repeatedly dismantling the bearing block process,, make bearing block complicated operation dismounting difficulty because the roll volume is big, Heavy Weight, careless slightly, will damage seal, break bearing, enlargement loss.
In sum, how to solve in the prior art in the process that breaker roll is repaired, need roll be pulled down and the roll that brings removes and installs complicacy from bearing block, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The technical problem that the present invention will solve is for providing a kind of roll repair method, and this method can realize solving prior art in the process that breaker roll is repaired, and need roll be pulled down and roll dismounting that brings and the purpose that complicacy is installed from bearing block.
For solving the problems of the technologies described above, the invention provides a kind of roll repair method, be used for the reprocessing of middle-size and small-size excellent wire rod roughing mill roll, comprise roll and be installed on the bearing block on the roll, comprise step:
1) said roll and said bearing block are lifted simultaneously and clamping to roll lathe on, and fixing said bearing block;
2) starting the roll lathe breaker roll repairs.
Preferably, before reprocessing roll first, adjust the moving labyrinth of installing on the said roll and the concentricity of said roll and be consistent.
Preferably, before reprocessing roll first, the hanger that lifts usefulness is set in the force side of bearing block.
Preferably, specifically comprise step in the said step 1):
11) said roll and said bearing block are lifted simultaneously to the roll lathe;
12) said hanger is connected on the lifting crossbeam of said roll lathe;
13) use the chuck of roll lathe to fix the transmission side of said roll, and be basis of reference, the axiality of adjustment roll and said chuck with said moving labyrinth;
14) thimble of said roll lathe is withstood the relative end of transmission side of said roll.
Preferably, in the said step 13), be the centering datum level with the cylindrical in said moving labyrinth, through dial gauge beating of said moving labyrinth detected, beat as reference the axiality of adjustment roll and said chuck with this.
Preferably, said moving labyrinth is the moving labyrinths of 304 stainless steels, and the inside and outside circle fineness in said moving labyrinth is not less than 7 grades.
Preferably, said step 2) specifically comprise step:
21), and make the bite of said roll lathe be moved to the left the left margin of said roll from the center-right position feed of said roll;
22) adjustment secondary feed position, the bite that makes said roll lathe is in said step 21) the feed of feed position, and carry out the edge, the right that the roll reparation is worked into said roll to the right;
23) order repeating said steps 21) and said step 22).
Preferably, said step 2) also comprise step 24) lubricating grease of said bearing block is changed said step 24) with said step 21), said step 22) and said step 23) carry out synchronously.
Preferably, said step 24) specifically comprise step:
241) open changing oil mouthful and oil drain out of said bearing block;
242) in the process that said roll rolls, from the said mouthful filling new oil fat of changing oil.
Preferably, comprise that also step 3) smears the high temperature lithium saponify in the outside in said moving labyrinth.
Roll repair method provided by the present invention is a kind of method that middle-size and small-size excellent wire rod roughing mill roll is repaired of being used for, and comprises roll and is installed on the bearing block on the roll.Roll repair method provided by the present invention comprises: step 1) lifts said roll and said bearing block to the roll lathe simultaneously, and fixing said bearing block; Step 2) starting the roll lathe breaker roll repairs.In roll repair method step 1) provided by the present invention; Simultaneously roll and bearing block being lifted to the roll lathe breaker roll processes; Do not need to carry out again the dismantlement work of bearing block; Can realize solving prior art in the process that breaker roll is repaired, need roll be pulled down and roll dismounting that brings and the purpose that complicacy is installed from bearing block.
Description of drawings
Structural representation when Fig. 1 repairs for roll lathe breaker roll in an embodiment of the present invention;
Fig. 2 is the flow chart of roll repair method in an embodiment of the present invention;
The corresponding relation of component names and Reference numeral is among Fig. 1:
Roll 1;
Bearing block 2; Hanger 21;
Moving labyrinth 3;
Roll lathe 4; Chuck 41; Thimble 42.
The specific embodiment
Core of the present invention is for providing a kind of roll repair method, and this method can realize solving prior art in the process that breaker roll is repaired, and need roll be pulled down and roll dismounting that brings and the purpose that complicacy is installed from bearing block.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 1 and Fig. 2, the structural representation when Fig. 1 repairs for roll lathe breaker roll 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 that middle-size and small-size excellent wire rod roughing mill roll is repaired of being used for, and comprises roll 1 and is installed on the bearing block 2 on the roll 1.Roll repair method provided by the present invention comprises: step 1) lifts roll 1 and bearing block 2 to roll lathe 4 simultaneously, and fixed bearing block 2; Step 2) starting roll lathe 4 breaker rolls 1 repairs.In roll repair method step 1) provided by the present invention, earlier roll 1 is winched to roll lathe 4 places together with bearing block 2, realize the installation of roll 1 on roll lathe 4 through fixed bearing block 2 then.In the present invention; Simultaneously roll 1 and bearing block 2 being lifted to the roll lathe 4 breaker roll 1 processes; Do not need to carry out again the dismantlement work of bearing block 2; Can realize solving prior art in the process that breaker roll 1 is repaired, need roll 1 be pulled down and roll 1 dismounting that brings and the purpose that complicacy is installed from bearing block 2.
The surface that is used for breaker roll 1 when breaker roll 1 is repaired on the roll lathe 4 is repaired the bite that uses and is moved as straight line, 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 guarantees not have eccentric throw in rotating process as far as possible, so when roll 1 is loaded on roll 1 lathe, at first carry out the axis of roll 1 and the concentricity between the attachment means.Roll repair method provided by the invention is simultaneously with roll 1 and be installed on bearing block 2 on the roll 1 and lift simultaneously to roll lathe 4 and repair; Because bearing block 2 is the ends that are installed on roll 1; Breaker roll 1 was directly measured comparatively complicated when the concentricity between axis that carries out roll 1 and attachment means was measured; And the influence of bearing block 2 is arranged, also will increase the error of measuring.The measurement of the axis of roll 1 and the concentricity between the attachment means for ease, the present invention has carried out the benchmark conversion to measurement.This benchmark conversion realizes through moving labyrinth 3, specifically is provided with as follows: will move labyrinth 3 and be set to be consistent with the concentricity of roll 1.Through the said structure design, can move the concentricity between labyrinth 3 and the attachment means through detection, thereby confirm the concentricity between roll 1 and the attachment means.
Need to prove at this: will move labyrinth 3 and be set to be consistent, and be appreciated that to be the center line in moving labyrinth 3 under perfect condition and the axis coaxle (coincidence) of roll 1 with the concentricity of roll 1.In the middle of reality, there is deviation in the center line in moving labyrinth 3 with the axis of roll 1, if this deviation within the range of permission, then also can think the center line that moves labyrinth 3 and the axis coaxle of roll 1.In addition, the concentricity between above-mentioned moving labyrinth 3 and the attachment means be appreciated that into, on roll 1 lathe two are relative is used for the virtual axis that anchor clamps had that breaker roll 1 installs additional, the center line in moving labyrinth 3 and the concentricity of this virtual axis.
Based on the foregoing description; When roll 1 is clipped on 4 last times of roll lathe; Influence rotationally for fear of bearing block 2 breaker rolls 1, need bearing block 2 be fixedly installed, this bearing block 2 fixedly install for: cut when rotation at roll 1; Bearing block 2 keeps fixing, and bearing block 2 can also unload from roll lathe 4 after roll 1 is accomplished reparation.For the ease of the lifting of bearing block 2 and to the fixedly installing 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 the roll lathe 4 through hanger 21.Bearing block 2 is a kind of support component; When bearing block 2 is positioned on frame or the ground; Breaker roll 1 is had supporting role, and the gravity of roll 1 will impose on the bottom of bearing block 2, so the force side of bearing block 2 also is appreciated that the bottom into bearing block 2 in one embodiment.
Particularly, step comprises the steps:
11) roll 1 and bearing block 2 are lifted simultaneously to roll lathe 4;
12) hanger 21 is connected on the lifting crossbeam of roll lathe 4;
13) use the chuck 41 of roll lathe 4 fixing the transmission side of roll 1, and be basis of reference, the axiality of adjustment roll 1 and chuck 41 with moving labyrinth 3;
14) thimble 42 with roll lathe 4 withstands an end relative with transmission side on the roll 1.
Wherein, step 12) is a kind of concrete fixed form of the present invention to bearing block 2.Roll lathe 4 has the lifting crossbeam, can lift crossbeam be provided with bearing block 2 on the installation portion that matches of set hanger 21 (like hook or latch), realize the fixed installation of bearing block 2 through installation portion.Adopt the transmission side of chuck 41 breaker rolls 1 to fix in the step 13), this operation is identical with prior art, therefore here repeats no more.Need the transmission side of breaker roll 1 to make an explanation: roll 1 is when being rolled operation to metal; Roll 1 is realized rotating through outside drive apparatus; Outside generally speaking drive apparatus is realized transmission through gear train; The input of gear train is connected with the power efferent of outside drive apparatus, and the output of gear train is connected with an end of roll 1, and roll 1 is used for realizing that with the output of gear train an end that is connected is the transmission side of roll 1.
In step 13): with moving labyrinth 3 is basis of reference, the axiality of adjustment roll 1 and chuck 41.Its concrete operations are: the cylindrical with moving labyrinth 3 is the centering datum level, through dial gauge moving beating of labyrinth 3 is detected, and beats as reference the axiality of adjustment roll 1 and chuck 41 with this.
Particularly, in one embodiment of the invention, moving labyrinth 3 adopts 304 stainless steels to process, and the inside and outside circle fineness in moving labyrinth 3 is 8 grades.Adopt stainless steel can make labyrinth 3 have higher working strength, improve its service life as the manufacturing materials in moving labyrinth 3.
The cutter cutting way of going into 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) adjustment secondary feed position, the bite that makes roll lathe 4 is in step 21) the feed of feed position, and carry out roll 1 to the right and repair the edge, the right that is worked into said roll 1; Step 23) order repeating said steps 21) and step 22).The cutter point of going into of above-mentioned bite is the incision of the body of roll 1, the swaging clamp phenomenon that can avoid bite to cause from the side incision of roll 1.
In order to realize the cut of left and right directions, breaker roll lathe 4 of the present invention has been made partly and having been improved, and the bite that roll lathe 4 is used to carry out cutting operation is installed on the plate of movably sauntering on the roll lathe 4, and is provided with a bite.For the moving bite of the strip that realizes sauntering can cut by left and right sides breaker roll 1, on the plate of sauntering, be provided with two bites, the direction of its blade is set to be used for left side processing and right processing respectively.Those skilled in the art can know, if realize the cut of bite breaker roll 1, realize cutwork thereby the blade on its cutter need have certain angular deflection.
When adopting breaker roll 1 of the present invention to repair; Roll 1 rotates; 2 of bearing blocks are fixed with respect to roll 1; Above-mentioned operating state is identical with bearing block 2 replacing lubricating grease operating states, therefore in the reparation of carrying out 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) carry out synchronously.
Step 24) specifically comprise: step 241) open changing oil mouthful and oil drain out of bearing block 2; Step 242) in the process that roll 1 rolls, from mouthful filling new oil fat of changing oil.When new filling lubricant grease constantly was full of bearing block 2, waste and old lubricating grease was then discharged from oil drain out, thereby realized 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) and has smeared the high temperature lithium saponify in the outside in moving labyrinth 3; Lithium base grease also has the lubricating grease of lubricated usefulness more by force under exceedingly odious operating condition, therefore smear the lubricity that the high temperature lithium saponify can increase moving labyrinth 3 in the outside in moving labyrinth 3; Make it have higher wearability in the course of the work, improve the service life in moving labyrinth 3.
More than a kind of roll repair method provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle 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 claim of the present invention.
Claims (10)
1. roll repair method is used for the reprocessing of middle-size and small-size excellent wire rod roughing mill roll comprised roll (1) and be installed on the bearing block (2) on the roll (1), it is characterized in that, comprises step:
1) said roll (1) and said bearing block (2) are lifted simultaneously and clamping to roll lathe (4) on, and fixing said bearing block (2);
2) starting the roll lathe repairs said roll (1).
2. according to the said roll repair method of claim 1, it is characterized in that roll (1) is preceding reprocessing first, adjust said roll (1) and go up the concentricity of the moving labyrinth (3) of installing and said roll (1) and be consistent.
3. according to the said roll repair method of claim 2, it is characterized in that roll (1) is preceding reprocessing first, the hanger (21) that lifts usefulness is set in the force side of bearing block (2).
4. according to the said roll repair method of claim 3, it is characterized in that, specifically comprise step in the said step 1):
11) said roll (1) and said bearing block (2) are lifted simultaneously to roll lathe (4);
12) said hanger (21) is connected on the lifting crossbeam of said roll lathe (4);
13) use the chuck (41) of roll lathe (4) fixing the transmission side of said roll (1), and be basis of reference, the axiality of adjustment roll (1) and said chuck (41) with said moving labyrinth (3);
14) thimble (42) of said roll lathe (4) is withstood the relative end of transmission side of said roll (1).
5. according to the said roll repair method of claim 4; It is characterized in that; In the said step 13), be the centering datum level, beating of said moving labyrinth (3) detected through dial gauge with the cylindrical in said moving labyrinth (3); Beat as reference the axiality of adjustment roll (1) and said chuck (41) with this.
6. according to the said roll repair method of claim 2, it is characterized in that said moving labyrinth (3) is the moving labyrinths of 304 stainless steels, the inside and outside circle fineness in said moving labyrinth (3) is not less than 7 grades.
7. according to the said roll repair method of claim 1, it is characterized in that said step 2) specifically comprise step:
21), and make the bite of said roll lathe (4) be moved to the left the left margin of said roll (1) from the center-right position feed of said roll (1);
22) adjustment secondary feed position, the bite that makes said roll lathe (4) is in said step 21) the feed of feed position, and carry out the edge, the right that roll (1) reparation is worked into said roll (1) to the right;
23) order repeating said steps 21) and said step 22).
8. according to the said roll repair method of claim 1, it is characterized in that said step 2) also comprise step 24) lubricating grease of said bearing block (2) is changed said step 24) and with said step 21), said step 22) and said step 23) carry out synchronously.
9. said according to Claim 8 roll repair method is characterized in that said step 24) specifically comprise step:
241) open changing oil mouthful and oil drain out of said bearing block (2);
242) in the process that said roll (1) rolls, from the said mouthful filling new oil fat of changing oil.
10. according to each said roll repair method of claim 2 to 6, it is characterized in that, comprise that also step 3) smears the high temperature lithium saponify in the outside in said 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 true CN102744550A (en) | 2012-10-24 |
| CN102744550B 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114345942A (en) * | 2022-01-24 | 2022-04-15 | 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 |
| CN114714042A (en) * | 2022-04-08 | 2022-07-08 | 邢台金隅冀东水泥有限公司 | Method for repairing rubber coating abrasion of head wheel roller of kiln entering lifter |
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| 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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| 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 |
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| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114345942A (en) * | 2022-01-24 | 2022-04-15 | 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 |
| 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 |
| CN114714042A (en) * | 2022-04-08 | 2022-07-08 | 邢台金隅冀东水泥有限公司 | Method for repairing rubber coating abrasion of head wheel roller of kiln entering lifter |
| 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 |
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|---|---|
| CN102744550B (en) | 2014-07-09 |
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Granted publication date: 20140709 Termination date: 20180105 |