CN109365537B - Continuous mill housing and adjusting method of base thereof - Google Patents
Continuous mill housing and adjusting method of base thereof Download PDFInfo
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- CN109365537B CN109365537B CN201811304150.6A CN201811304150A CN109365537B CN 109365537 B CN109365537 B CN 109365537B CN 201811304150 A CN201811304150 A CN 201811304150A CN 109365537 B CN109365537 B CN 109365537B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
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Abstract
The invention relates to the field of installation of multi-frame rolling mills, in particular to a continuous rolling mill housing and a method for adjusting a base thereof; the method is characterized in that: the method comprises the steps of firstly, preparing equal-height blocks; step two, erecting equal-height blocks; step three, using the equal-height blocks to align the longitudinal center of the base of the rolling mill; step four, using the equal-height blocks to horizontally align the inlet base and the outlet base of the rolling mill base; fifthly, horizontally aligning the bases of adjacent rolling mills by using the equal-height blocks; sixthly, aligning the parallelism of the outlet bases of adjacent rolling mills by using the equal-height blocks; and step seven, adjusting the parallelism of the frame of the phase-tie rolling machine by using the equal-height blocks. Compared with the traditional continuous rolling mill housing and base adjusting method, the adjusting method has the advantages that the equal-height blocks are used for auxiliary measurement, the installation reference surface can be accurately and effectively extended, the detection precision is improved, and the installation progress of equipment is accelerated.
Description
Technical Field
The invention relates to the field of installation of multi-frame rolling mills, in particular to a continuous rolling mill housing and a base adjusting method thereof.
Background
In the process of adjusting the rolling mill base and the housing of the continuous rolling mill, the upper surface of the rolling mill base is not completely a flat high-precision machined surface, the installation position of the rolling mill base is usually a finish machined surface, and other positions are non-machined surfaces and form a certain bearing platform bulge, so that the erection of the leveling ruler is directly influenced. In the process of aligning the parallelism of adjacent rolling mill bases, in order to improve the adjustment precision of the rolling mill bases, the side faces of the rolling mill bases are usually used as detection reference points, and how to detect the distance between two parallel vertical faces, the detection faces need to be extended, and the problem cannot be effectively solved by the traditional construction technical means.
Disclosure of Invention
The invention aims to overcome the defects of the traditional construction means and provide a debugging method which can effectively solve the problems of the influence of the non-processing surface of the rolling mill base on the levelness detection of the rolling mill base and the levelness detection of the outlet bases of adjacent rolling mills.
In order to achieve the above object, the present invention is realized by:
a continuous mill housing and a base adjusting method thereof comprise
Step one, preparing equal-height blocks:
step 1.1, quenching the steel block to enable the hardness value of the steel block to reach HRC58-HRC 62;
step 1.2, performing fine grinding operation on the steel block obtained in the step 1.1 to ensure that the flatness tolerance is not more than 0.005mm and the parallelism tolerance of any two parallel surfaces is not more than 0.01 mm;
step two, erecting equal-height blocks:
2.1, directly placing the equal-height blocks for erecting the flat rule on the fine-finished surface part on the upper surface of the rolling mill base;
2.2, pressing the equal-height blocks on the side surface of the rolling mill base by using a pressing screw rod, wherein the equal-height blocks are used for being matched with the inside micrometer; wherein, the jacking screw rod is made of a 16mm screw rod, and two ends of the jacking screw rod are provided with double nuts for locking;
step three, using the equal-height blocks to align the longitudinal center of the base of the rolling mill:
3.1, erecting equal-height blocks on the side surfaces of the rolling mill base;
3.2, placing an inner micrometer bracket, measuring the distance from the equal-height block to the central line of the rolling mill by using the inner micrometer according to the measured distance, and adjusting the base of the rolling mill according to the size of a design drawing;
step four, using equal-height blocks to horizontally align the inlet and outlet bases of the rolling mill base:
step 4.1, placing equal-height blocks at diagonal positions of rolling mill bases at an inlet and an outlet of a rolling mill, placing a flat rule on the equal-height blocks, and placing a frame type level meter in the middle of the flat rule to adjust the bases of the inlet and the outlet of the rolling mill;
and step five, using the equal-height blocks to horizontally align the bases of the adjacent rolling mills:
step 5.1, erecting a leveling ruler between adjacent rolling mill bases, placing equal-height blocks at the bottom of the leveling ruler, and placing a frame type level meter in the middle of the leveling ruler to adjust the bases of the adjacent rolling mills;
step six, aligning the parallelism of the outlet bases of adjacent rolling mills by using equal-height blocks:
step 6.1, erecting equal-height blocks on the side faces of the adjacent rolling mill outlet bases, and measuring the distance between the equal-height blocks by using an inside micrometer to adjust the adjacent rack outlet side bases;
step seven, using equal-height blocks to adjust the parallelism of adjacent rolling stands:
7.1, erecting equal-height blocks on the inner sides of the windows of the adjacent frames; and (3) fixing the equal-height blocks on the inner side of the window of the rolling mill by using a jacking screw rod, and measuring the parallelism of adjacent rack housings by using an inside micrometer.
Compared with the traditional continuous rolling mill housing and base adjusting method, the adjusting method has the advantages that the equal-height blocks are used for auxiliary measurement, the installation reference surface can be accurately and effectively extended, the detection precision is improved, and the installation progress of equipment is accelerated.
Drawings
FIG. 1 is a schematic view of manufacturing and installing an equal-height block jacking screw rod.
FIG. 2 is a schematic diagram of the adjustment of the contour block for the rolling mill base.
FIG. 3 is a schematic diagram of the adjustment of the diagonal levelness of the equal-height blocks for the rolling mill base.
FIG. 4 is a schematic diagram of the leveling adjustment of equal-height blocks for adjacent rolling mill bases.
FIG. 5 is a schematic view of the alignment block used to adjust the parallelism of the outlet mounts of adjacent racks.
Fig. 6 is a schematic diagram of the alignment block for adjusting the parallelism of adjacent rack windows.
In the figure:
1 rolling mill base, 2 equal-height blocks, 3 jacking screw rods, 4 rolling mill central lines, 5 inside micrometer, 6 inside micrometer brackets, 7 leveling rulers, 8 frame type gradienter, 9 dial indicator and 10 rolling mill housing.
Detailed Description
The invention is further illustrated by the following specific examples.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
A method for adjusting the memorial archways and bases of continuous rolling mills by using equal-height blocks comprises
Step one, selecting the types of the equal-height blocks 2:
the equal-height blocks 2 are selected for erecting the flat ruler and matching with the inside micrometer. 10-20 blocks with two specifications of equal height 2 are respectively purchased and processed, so that the base of the multi-frame memorial archway can be adjusted at the same time. Before the equal-height block 2 is used, an external micrometer with the precision grade of 0.01mm is used for measuring the thickness of each part of the single equal-height block 2 and the superposition thickness of a plurality of blocks. The equal-height block 2 used for erecting the flat ruler is 20mm wide, 10mm thick and 150mm long, and the equal-height block 2 used for adjusting the parallelism by matching with the inside micrometer is 40mm wide, 10mm thick and 150mm long.
Step two, erecting the equal-height blocks 2:
the equal-height blocks 2 used for erecting the flat ruler are directly placed on the surface fine machining surface of the rolling mill base, the equal-height blocks 2 used for matching with the inside micrometer are used, and the equal-height blocks 2 need to be tightly propped on the side surface of the rolling mill base by using the propping screw rods 3. The jacking screw rod 3 is made of a 16mm screw rod, two ends of the jacking screw rod are provided with double nuts for locking, and the jacking screw rod is jacked on the side surface of the rolling mill base as shown in figure 1.
Step three, the equal-height block 2 is used for aligning the longitudinal center of the base of the rolling mill:
erecting an equal-height block 2 on the side face of a rolling mill base, firstly placing an inner diameter micrometer bracket 6, selecting an inner diameter micrometer 5 according to the measurement distance to measure the distance from the equal-height block 2 to a rolling mill central line 4 as shown in figure 2, and adjusting the rolling mill base according to the design drawing size.
Step four, the equal-height block 2 is used for horizontally aligning the inlet and outlet bases of the rolling mill base:
the equal-height blocks 2 are arranged on the diagonal positions of the rolling mill base 1 at the inlet and the outlet of the rolling mill, the flat rule 7 is arranged on the equal-height blocks 2, and the frame type level meter 8 is arranged in the middle of the flat rule 7 to adjust the rolling mill base 1 at the inlet and the outlet.
Step five, the equal-height blocks are used for horizontally aligning adjacent rolling mill bases:
a flat rule 7 is erected between adjacent rolling mill bases 1, as shown in figure 3, an equal-height block 2 is placed at the bottom of the flat rule, and a frame type level meter 8 is placed in the middle of the flat rule 7 to adjust the rolling mill bases 1 of the adjacent stands.
Step six, the equal-height block 2 is used for aligning the parallelism of the outlet bases of the adjacent rolling mills:
erecting equal-height blocks 2 on the side surfaces of the adjacent rolling mill outlet bases as shown in figure 4, and measuring the distance between the equal-height blocks 2 by using an inside micrometer 5 to adjust the adjacent rack outlet side bases.
Step seven, the equal-height block 2 is used for adjusting the parallelism of adjacent rolling stands:
erecting an equal-height block 2 at the inner side of the window of the adjacent frame, fixing the equal-height block 2 at the inner side of the window of the rolling mill by using a jacking screw rod 3 as shown in figure 5, and measuring the parallelism of the memorial archways of the adjacent frames by using an inner micrometer 5.
Claims (1)
1. A continuous mill housing and a base adjusting method thereof are characterized in that: comprises that
Step one, preparing equal-height blocks:
step 1.1, quenching the steel block to enable the hardness value of the steel block to reach HRC58-HRC 62;
step 1.2, performing fine grinding operation on the steel block obtained in the step 1.1 to ensure that the flatness tolerance is not more than 0.005mm and the parallelism tolerance of any two parallel surfaces is not more than 0.01 mm;
step two, erecting equal-height blocks:
2.1, directly placing the equal-height blocks for erecting the flat rule on the fine-finished surface part on the upper surface of the rolling mill base;
2.2, pressing the equal-height blocks on the side surface of the rolling mill base by using a pressing screw rod, wherein the equal-height blocks are used for being matched with the inside micrometer; wherein, the jacking screw rod is made of a 16mm screw rod, and two ends of the jacking screw rod are provided with double nuts for locking;
step three, using the equal-height blocks to align the longitudinal center of the base of the rolling mill:
3.1, erecting equal-height blocks on the side surfaces of the rolling mill base;
3.2, placing an inner micrometer bracket, measuring the distance from the equal-height block to the central line of the rolling mill by using the inner micrometer according to the measured distance, and adjusting the base of the rolling mill according to the size of a design drawing;
step four, using equal-height blocks to horizontally align the inlet and outlet bases of the rolling mill base:
step 4.1, placing equal-height blocks at diagonal positions of rolling mill bases at an inlet and an outlet of a rolling mill, placing a flat rule on the equal-height blocks, and placing a frame type level meter in the middle of the flat rule to adjust the bases of the inlet and the outlet of the rolling mill;
and step five, using the equal-height blocks to horizontally align the bases of the adjacent rolling mills:
step 5.1, erecting a leveling ruler between adjacent rolling mill bases, placing equal-height blocks at the bottom of the leveling ruler, and placing a frame type level meter in the middle of the leveling ruler to adjust the bases of the adjacent rolling mills;
step six, aligning the parallelism of the outlet bases of adjacent rolling mills by using equal-height blocks:
step 6.1, erecting equal-height blocks on the side faces of the adjacent rolling mill outlet bases, and measuring the distance between the equal-height blocks by using an inside micrometer to adjust the adjacent rack outlet side bases;
step seven, using equal-height blocks to adjust the parallelism of adjacent rolling stands:
7.1, erecting equal-height blocks on the inner sides of the windows of the adjacent frames; and (3) fixing the equal-height blocks on the inner side of the window of the rolling mill by using a jacking screw rod, and measuring the parallelism of adjacent rack housings by using an inside micrometer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811304150.6A CN109365537B (en) | 2018-11-03 | 2018-11-03 | Continuous mill housing and adjusting method of base thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811304150.6A CN109365537B (en) | 2018-11-03 | 2018-11-03 | Continuous mill housing and adjusting method of base thereof |
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| CN109365537A CN109365537A (en) | 2019-02-22 |
| CN109365537B true CN109365537B (en) | 2020-05-26 |
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| CN110743918B (en) * | 2019-09-20 | 2021-05-14 | 中国二十冶集团有限公司 | Method for installing main transmission device of continuous rolling mill in place |
| CN112658035A (en) * | 2020-11-30 | 2021-04-16 | 中国十九冶集团有限公司 | Positioning and aligning method for rolling mill base plate and frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101456039A (en) * | 2007-12-12 | 2009-06-17 | 中国二十冶建设有限公司 | Rolling-mill base installation measurement method |
| CN101458057A (en) * | 2007-12-12 | 2009-06-17 | 中国二十冶建设有限公司 | Housing window squareness and parallelism measurement method |
| CN101664760B (en) * | 2008-09-05 | 2011-07-20 | 中国二十冶集团有限公司 | Method for adjusting housings outside of single stand reversible rolling mill |
| CN102240680B (en) * | 2011-05-06 | 2013-05-01 | 天津二十冶建设有限公司 | Method for adjusting verticality of rolling mill |
| CN105880298A (en) * | 2015-01-26 | 2016-08-24 | 鞍钢股份有限公司 | Centering calibration method for rolling center line |
| CN104858238A (en) * | 2015-05-26 | 2015-08-26 | 中冶陕压重工设备有限公司 | Roll changing mechanism for working roll of rolling mill |
| CN105798067A (en) * | 2016-04-28 | 2016-07-27 | 中冶天工集团有限公司 | Accurate installation measuring method for rolling mill bases |
| CN107234138B (en) * | 2017-06-30 | 2018-09-18 | 攀钢集团工程技术有限公司 | Mill housing aligning method |
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