CN107282640B - Hydraulic lining plate assembly of rolling mill support roller and application method thereof - Google Patents
Hydraulic lining plate assembly of rolling mill support roller and application method thereof Download PDFInfo
- Publication number
- CN107282640B CN107282640B CN201710582225.6A CN201710582225A CN107282640B CN 107282640 B CN107282640 B CN 107282640B CN 201710582225 A CN201710582225 A CN 201710582225A CN 107282640 B CN107282640 B CN 107282640B
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- lining plate
- piston
- rolling mill
- plate body
- piston rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
-
- 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
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a hydraulic lining plate assembly of a rolling mill support roller, which comprises a lining plate body, wherein two pistons are arranged in the center of the lining plate body, a compression ring is coaxially sleeved outside each piston, screws are respectively arranged at four vertexes of the lining plate body, and a disc spring is arranged between screw heads of the screws and the compression ring. The invention also discloses a using method of the lining plate assembly, and the hydraulic lining plate assembly for the rolling mill support roller solves the problem that the accuracy of the rolling mill is reduced due to serious abrasion of a copper sliding plate of a bearing seat of the rolling mill support roller.
Description
Technical Field
The invention belongs to the technical field of metallurgical equipment, relates to a hydraulic lining plate assembly of a rolling mill support roller, and also relates to a use method of the lining plate assembly.
Background
The rolling mill is a main machine of metallurgical equipment, wherein the roll assembly is the most critical part of the rolling mill, and because the backup roll device needs to be replaced frequently and the gap between the backup roll device and a lining plate which is assembled on a rolling mill frame is reduced as much as possible, in the practical case, copper sliding plates are arranged on two sides of a backup roll bearing seat, and a fitter is enabled to grind the copper sliding plates before the copper sliding plates are arranged. Although the clearance between the copper sliding plate and the lining plate of the rolling mill is smaller at the initial stage of the mating and the precision of the whole rolling mill is better, the copper sliding plate is worn after the rollers are replaced for several times, the clearance is increased, and the precision of the rolling mill is reduced. At this time, the copper slide plate needs to be replaced, and the copper slide plate is subjected to mating grinding by a fitter again. The auxiliary grinding belongs to bench work, the labor intensity of workers is high, the production efficiency is low, and the degree of dependence on the labor skill level of the workers is high, so that the number of standby rollers is required to be increased, and the cost is increased.
Disclosure of Invention
The invention aims to provide a hydraulic lining plate assembly for a rolling mill support roller, which solves the problem that the accuracy of a rolling mill is reduced due to serious abrasion of a copper sliding plate of a bearing seat of a rolling mill support roller.
Another object of the invention is to provide a method of using a hydraulic backing plate for a backup roll of a rolling mill.
The technical scheme includes that the hydraulic lining plate assembly of the rolling mill support roller comprises a lining plate body, two pistons are arranged in the center of the lining plate body, a compression ring is coaxially sleeved outside each piston, screws are respectively arranged at four vertexes of the lining plate body, and a disc spring is arranged between screw heads of the screws and the compression ring.
The first technical solution of the invention is also characterized in that,
wherein the welt body is the cuboid structure, and two circular grooves have been seted up to the center department of welt body, and two circular grooves set up along the length direction of welt body, and two pistons are correspondingly installed in two circular grooves.
Wherein a piston rod of the piston is sleeved with a piston sealing ring.
The compression ring and the piston are coaxially arranged in the circular groove, and the compression ring is sleeved outside the piston.
The contact part of the side wall of the compression ring and the circular groove is provided with a sealing ring A, and the contact part of the bottom of the compression ring and the circular groove is provided with a sealing ring B.
The other technical scheme adopted by the invention is that the application method of the hydraulic lining plate component of the backup roll of the rolling mill specifically comprises the following steps:
step 1, mounting a lining plate assembly on a rolling stand;
step 2, a piston rod of a piston on the lining plate component stretches out, the disc spring is compressed, and when the pressure oil pressure in the piston reaches a set value, a gap between the lining plate body and the copper sliding plate is eliminated;
and 3, reducing the pressure in a hydraulic oil loop of the piston, retracting a piston rod of the piston, recovering a disc spring, separating the side B of the lining plate body from a copper sliding plate on a supporting roller bearing seat, and replacing the supporting roller.
The other technical proposal of the invention is also characterized in that,
the specific process of the step 1 is as follows:
a pair of lining plate components are respectively arranged at two ends of a rolling mill support roller, each pair of lining plate components is respectively arranged at two opposite sides of one end of the rolling mill support roller, the A side surface of a lining plate body is attached to the surface of a rolling mill stand, the end surface of a piston rod of a piston is positioned on the A side surface of the lining plate body, and four screws on the lining plate body are fixed on the rolling mill stand, so that the installation of the lining plate components is completed.
The specific process of the step 2 is as follows:
the hydraulic oil loop of the piston is provided with a pressure sensor, when the rolling mill works, the piston is pressurized, the piston rod of the piston extends out, the piston rod of the piston is blocked by the rolling mill frame, the cylinder body of the piston moves relative to the piston rod of the piston, the butterfly spring is compressed, when the pressure value of the pressure sensor is between 5 and 10MPa, the side B of the lining plate body is contacted with the copper sliding plate on the bearing seat of the supporting roller, so that the gap between the lining plate body and the copper sliding plate is eliminated, and the side B of the lining plate body and the side A of the lining plate body are opposite sides of the lining plate body.
The hydraulic lining plate assembly for the support roller of the rolling mill has the beneficial effects that the lining plate body is connected to the rolling mill frame, the clearance between the lining plate body and the copper sliding plate on the support roller bearing seat can be effectively adjusted through the action of the piston rod of the piston and the compression recovery of the disc spring, and the copper sliding plate on the support roller bearing seat is prevented from being worn when the support roller is replaced, so that the problem that the accuracy of the rolling mill is reduced due to serious wear of the copper sliding plate of the support roller bearing seat of the rolling mill at present is solved.
Drawings
FIG. 1 is a schematic view of a hydraulic backing plate assembly for a backup roll of a rolling mill in accordance with the present invention;
FIG. 2 is a front cross-sectional view of a rolling mill backup roll hydraulic liner assembly of the present invention;
FIG. 3 is a schematic view of the connection between the screw and the liner body in a hydraulic liner assembly for a backup roll of a rolling mill according to the present invention;
fig. 4 is a side view of a rolling mill backup roll hydraulic liner assembly of the present invention mounted on a roll stand.
In the figure, a lining plate body, a piston, a compression ring, a screw, a disc spring, a circular groove, a piston sealing ring, a sealing ring A, a sealing ring B, a rolling mill frame, a supporting roller bearing seat, and a copper sliding plate.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description.
The invention relates to a hydraulic lining plate component of a rolling mill support roller, which has a structure shown in figures 1-3, and comprises a lining plate body 1, wherein two pistons 2 are arranged in the center of the lining plate body 1, a compression ring 3 is coaxially sleeved outside each piston 2, four vertexes of the lining plate body 1 are respectively provided with a screw 4, and a disc spring 5 is arranged between a screw head of the screw 4 and the compression ring 3.
Wherein, the lining board body 1 is a cuboid structure, two circular grooves 6 are formed in the center of the lining board body 1, the two circular grooves 6 are arranged along the length direction of the lining board body 1, and the two pistons 2 are correspondingly arranged in the two circular grooves 6.
Wherein a piston sealing ring 7 is sleeved on a piston rod of the piston 2.
Wherein the compression ring 3 and the piston 2 are coaxially arranged in the circular groove 6, and the compression ring 3 is sleeved outside the piston 2.
Wherein the contact position of the side wall of the compression ring 3 and the circular groove 6 is provided with a sealing ring A8, and the contact position of the bottom of the compression ring and the circular groove is provided with a sealing ring B9.
The invention also provides a using method of the hydraulic lining plate component of the rolling mill support roller, which comprises the following steps:
step 1, mounting a lining plate assembly on a rolling mill stand 10;
the specific process of the step 1 is as follows:
a pair of lining plate components are respectively arranged at two ends of a rolling mill support roller, each pair of lining plate components is respectively arranged at two opposite sides of one end of the rolling mill support roller (see fig. 4), the side A of the lining plate body 1 is attached to the surface of the rolling mill stand 10, the end face of a piston rod of the piston 2 is positioned on the side A of the lining plate body 1, and four screws 4 on the lining plate body 1 are fixed on the rolling mill stand 10, so that the installation of the lining plate components is completed.
Step 2, the piston rod of the piston 2 on the lining plate component stretches out, the disc spring 5 is compressed, and when the pressure oil pressure in the piston 2 reaches a set value, the gap between the lining plate body 1 and the copper sliding plate 12 is eliminated;
the specific process of the step 2 is as follows:
the hydraulic oil circuit of the piston 2 is provided with a pressure sensor, when the rolling mill works, the piston 2 is pressurized, the piston rod of the piston 2 extends out, the piston rod of the piston 2 is blocked by the rolling mill frame 10, the cylinder body of the piston 2 moves relative to the piston rod of the piston 2, the butterfly spring 5 is compressed, when the pressure value of the pressure sensor is between 5 and 10MPa (5 and 10MPa is set as the set piston oil pressure), the B side surface of the lining plate body 1 is contacted with the copper sliding plate 12 on the supporting roller bearing seat 11, the gap between the lining plate body 1 and the copper sliding plate 12 is eliminated, and the B side surface of the lining plate body 1 and the A side surface of the lining plate body 1 are opposite two side surfaces of the lining plate body 1.
And 3, reducing the pressure in the hydraulic oil loop of the piston 2, retracting a piston rod of the piston 2, recovering the disc spring 5, separating the side B of the lining plate body 1 from the copper sliding plate 12 on the supporting roller bearing seat 11, and then carrying out the replacement operation of the supporting roller.
The hydraulic lining plate assembly for the rolling mill support roller is mainly used for facilitating the replacement of the support roller of the rolling mill, so that the hydraulic lining plate assembly for the rolling mill support roller is convenient for the replacement of the support roller by adjusting the clearance between the lining plate body and the copper sliding plate on the bearing seat of the support roller in the use process, and the final step of the use process of the hydraulic lining plate assembly for the rolling mill support roller is the replacement of the support roller.
Claims (2)
1. A rolling mill backing roll hydraulic pressure welt subassembly, its characterized in that: the novel lining plate comprises a lining plate body (1), wherein two pistons (2) are arranged in the center of the lining plate body (1), a compression ring (3) is coaxially sleeved outside each piston (2), four vertexes of the lining plate body (1) are respectively provided with a screw (4), and a disc spring (5) is arranged between a screw head of the screw (4) and the compression ring (3);
the lining plate body (1) is of a cuboid structure, two circular grooves (6) are formed in the center of the lining plate body (1), the two circular grooves (6) are formed in the length direction of the lining plate body (1), and the two pistons (2) are correspondingly arranged in the two circular grooves (6);
the side A of the lining plate body (1) is attached to the surface of the rolling mill stand (10), the end face of a piston rod of the piston (2) is positioned on the side A of the lining plate body (1), and four screws (4) on the lining plate body (1) are fixed on the rolling mill stand (10);
the side B of the lining plate body (1) is contacted with a copper sliding plate (12) on a supporting roller bearing seat (11), so that a gap between the lining plate body (1) and the copper sliding plate (12) is eliminated;
a piston sealing ring (7) is sleeved on a piston rod of the piston (2);
the compression ring (3) and the piston (2) are coaxially arranged in the circular groove (6), and the compression ring (3) is sleeved outside the piston (2);
a sealing ring A (8) is arranged at the contact position of the side wall of the pressing ring (3) and the circular groove (6), and a sealing ring B (9) is arranged at the contact position of the bottom of the pressing ring (3) and the circular groove (6).
2. The method of using a hydraulic backing plate assembly for a backup roll of a rolling mill of claim 1, wherein: the method specifically comprises the following steps:
step 1, mounting a lining plate assembly on a rolling mill stand (10);
the specific process of the step 1 is as follows:
a pair of lining plate components are respectively arranged at two ends of a rolling mill support roller, each pair of lining plate components is respectively arranged at two opposite sides of one end of the rolling mill support roller, the side A of a lining plate body (1) is attached to the surface of a rolling mill stand (10), the end face of a piston rod of a piston (2) is positioned on the side A of the lining plate body (1), and four screws (4) on the lining plate body (1) are fixed on the rolling mill stand (10), so that the installation of the lining plate components is completed;
step 2, a piston rod of a piston (2) on the lining plate component extends out, a disc spring (5) is compressed, and when the pressure oil pressure in the piston (2) reaches a set value, a gap between the lining plate body (1) and a copper sliding plate (12) is eliminated;
the specific process of the step 2 is as follows:
a pressure sensor is arranged in a hydraulic oil loop of the piston (2), when the rolling mill works, the piston (2) is pressurized, a piston rod of the piston (2) stretches out, the piston rod of the piston (2) is blocked by a rolling mill stand (10), a cylinder body of the piston (2) moves relative to the piston rod of the piston (2), a disc spring (5) is compressed, and when the pressure value of the pressure sensor is between 5 and 10MPa, the side B of the lining plate body (1) is contacted with a copper sliding plate (12) on a supporting roller bearing seat (11), so that a gap between the lining plate body (1) and the copper sliding plate (12) is eliminated;
and 3, reducing the pressure in the hydraulic oil loop of the piston (2), retracting a piston rod of the piston (2), recovering the disc spring (5), and separating the side B of the lining plate body (1) from the copper sliding plate (12) on the supporting roller bearing seat (11) to perform the replacement operation of the supporting roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710582225.6A CN107282640B (en) | 2017-07-17 | 2017-07-17 | Hydraulic lining plate assembly of rolling mill support roller and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710582225.6A CN107282640B (en) | 2017-07-17 | 2017-07-17 | Hydraulic lining plate assembly of rolling mill support roller and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107282640A CN107282640A (en) | 2017-10-24 |
| CN107282640B true CN107282640B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710582225.6A Active CN107282640B (en) | 2017-07-17 | 2017-07-17 | Hydraulic lining plate assembly of rolling mill support roller and application method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110227720A (en) * | 2019-07-19 | 2019-09-13 | 太原理工大学 | A kind of bulging liner plate, clearance control method and system |
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| JP2001340907A (en) * | 2000-05-30 | 2001-12-11 | Nkk Corp | Roll chock clamping device |
| JP2002096107A (en) * | 2000-09-14 | 2002-04-02 | Mitsubishi Heavy Ind Ltd | Rolling mill |
| JP2002102911A (en) * | 2000-09-25 | 2002-04-09 | Kobe Steel Ltd | Apparatus for adjusting height of pass line in rolling mill |
| CN201217014Y (en) * | 2008-05-23 | 2009-04-08 | 宝山钢铁股份有限公司 | Aligning vertical roll for hot-rolled edger mill |
| CN201437124U (en) * | 2009-07-22 | 2010-04-14 | 宝钢集团新疆八一钢铁有限公司 | Same inclination plate wedge type device for reducing space between rolling mill bearing block and housing frame lining plate |
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| CN102847717A (en) * | 2012-09-08 | 2013-01-02 | 中色科技股份有限公司 | Device and method for improving steady operation of roll system of rolling mill |
| CN207026116U (en) * | 2017-07-17 | 2018-02-23 | 中冶陕压重工设备有限公司 | A kind of rolling mill hydraulic pressure liner plate component |
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2017
- 2017-07-17 CN CN201710582225.6A patent/CN107282640B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001340907A (en) * | 2000-05-30 | 2001-12-11 | Nkk Corp | Roll chock clamping device |
| JP2002096107A (en) * | 2000-09-14 | 2002-04-02 | Mitsubishi Heavy Ind Ltd | Rolling mill |
| JP2002102911A (en) * | 2000-09-25 | 2002-04-09 | Kobe Steel Ltd | Apparatus for adjusting height of pass line in rolling mill |
| CN201217014Y (en) * | 2008-05-23 | 2009-04-08 | 宝山钢铁股份有限公司 | Aligning vertical roll for hot-rolled edger mill |
| CN201437124U (en) * | 2009-07-22 | 2010-04-14 | 宝钢集团新疆八一钢铁有限公司 | Same inclination plate wedge type device for reducing space between rolling mill bearing block and housing frame lining plate |
| CN201644505U (en) * | 2010-03-26 | 2010-11-24 | 涿神有色金属加工专用设备有限公司 | Roll correcting device of aluminium casting and rolling machine |
| CN102847717A (en) * | 2012-09-08 | 2013-01-02 | 中色科技股份有限公司 | Device and method for improving steady operation of roll system of rolling mill |
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Non-Patent Citations (1)
| Title |
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| CN107282640A (en) | 2017-10-24 |
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