CN114289519B - Quick dismounting method for working roller - Google Patents
Quick dismounting method for working roller Download PDFInfo
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- CN114289519B CN114289519B CN202111608608.9A CN202111608608A CN114289519B CN 114289519 B CN114289519 B CN 114289519B CN 202111608608 A CN202111608608 A CN 202111608608A CN 114289519 B CN114289519 B CN 114289519B
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- bearing seat
- ring
- work roll
- distance ring
- distance
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Abstract
The invention provides a method for quickly disassembling and assembling a working roller, which comprises the following steps: during the old working roll dismantling process: dismantling a sealing ring, an end cover, a pressing plate, a supporting ring and a positioning key arranged on the distance ring and used for positioning the supporting ring; the distance ring is locked and fixed on the bearing seat to separate the working roller from the bearing seat; during the new working roll assembly process: the working roller is arranged on a bearing seat; releasing the locking and fixing between the distance ring and the bearing seat; and installing a positioning key, a supporting ring, a pressing plate, a sealing ring and an end cover. Compared with the disassembly and assembly process when the existing working roller is replaced, the working roller in the scheme does not need to detach the distance ring from the bearing seat, the distance ring is not required to be assembled during subsequent assembly, the travelling crane and the impact head are not required, and the assembly efficiency of the working roller can be effectively improved.
Description
Technical Field
The invention belongs to the field of work roll disassembly and assembly, and particularly relates to a method for quickly disassembling and assembling a work roll.
Background
In the use process of the rolling mill, the working rolls on the rolling mill need to be replaced frequently so as to ensure the rolling quality of the steel plate. In the existing working roll replacement process, the sealing ring, the end cover, the pressing plate, the supporting ring, the distance ring and the bearing seat are required to be removed in sequence, and the bearing seat, the distance ring, the supporting ring, the pressing plate, the end cover and the sealing ring are assembled in sequence during assembly. The distance ring is assembled and disassembled most time consuming, the traveling crane is needed to be used for matching, when the distance ring is assembled, the traveling crane is needed to lift the impact head to impact the distance ring, the distance ring can be arranged in the bearing seat, and when the impact head impacts the distance ring, the operation such as positioning calibration is needed, so that the whole disassembly and assembly of the working roller are time-consuming and labor-consuming.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a method for quickly assembling and disassembling a work roll, which is used for improving the disassembling and assembling efficiency of the work roll.
To achieve the above and other related objects, the present invention provides a method for quickly assembling and disassembling a work roll, comprising:
during the old working roll dismantling process:
dismantling a sealing ring, an end cover, a pressing plate, a supporting ring and a positioning key arranged on the distance ring and used for positioning the supporting ring;
the distance ring is locked and fixed on the bearing seat;
separating the work roll from the bearing block;
during the new working roll assembly process:
the working roller is arranged on a bearing seat;
releasing the locking and fixing between the distance ring and the bearing seat;
and installing a positioning key, a supporting ring, a pressing plate, a sealing ring and an end cover.
Further, when the distance ring is locked and fixed on the bearing seat, a locking tool is installed, and the locking tool is connected with the distance ring and the bearing seat.
Further, when the locking tool is installed, the locking tool is uniformly arranged around the distance ring.
Further, the bearing seat is provided with a mounting hole for a locking tool, and the locking tool is in threaded connection with the bearing seat.
Further, the locking tool comprises a body, a connecting hole for being connected with the bearing seat is formed in the middle of the body, a first protruding portion for abutting against the bearing seat is protruding from the first end of the body, and a second protruding portion for limiting the distance ring is arranged at a position, close to the second end, of the body.
Further, a right angle for locking the distance ring is formed between the second protruding part and the second end of the body.
Further, the bearing is replenished with oil before a new work roll is installed.
Further, before the old working roll is removed, the guard plates on two sides of the old working roll are removed, and after the new working roll is installed, the guard plates are installed on two sides of the working roll.
As described above, the method for quickly dismounting the working roller has the following beneficial effects:
compared with the disassembly and assembly process when the existing working roller is replaced, the working roller in the scheme does not need to detach the distance ring from the bearing seat, the distance ring is not required to be assembled during subsequent assembly, the travelling crane and the impact head are not required, and the assembly efficiency of the working roller can be effectively improved.
Drawings
Fig. 1 is a schematic view showing a mounting structure between a work roll and a bearing housing in an embodiment of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is a schematic diagram showing the cooperation between the locking tool and the bearing housing and the distance ring in the embodiment of the invention.
Fig. 4 is a side view of a locking tool in an embodiment of the invention.
Fig. 5 is a front view of a locking tool according to an embodiment of the present invention.
Detailed Description
Reference numerals in the drawings of the specification include: work roll 1, sealing ring 2, end shield 3, pressure plate 4, support ring 5, distance ring 6, positioning key 7, bearing block 8, locking tool 9, screw 10, body 901, first protrusion 902, second protrusion 903, connecting hole 904.
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Examples
As shown in fig. 1 to 5, the present embodiment provides a method for quickly assembling and disassembling a work roll, including:
s1, in the process of dismantling the old working roll 1:
the sealing ring 2, the end cover 3, the pressing plate 4, the supporting ring 5 and the positioning key 7 which is arranged on the distance ring 6 and used for positioning the supporting ring 5 are removed in sequence;
the distance ring 6 is locked and fixed on the bearing seat 8. When the distance ring 6 is locked and fixed on the bearing seat 8, a locking tool 9 is arranged between the distance ring 6 and the bearing seat 8, and the distance ring 6 and the bearing seat 8 are locked through the locking tool 9. The locking tool 9 evenly sets up around the distance ring 6, and locking tool 9 includes body 901, and body 901 middle part has offered the connecting hole 904 that is used for connecting bearing frame 8, and body 901's first end protrusion is provided with the first bulge 902 that is used for supporting bearing frame 8, and the second end position protrusion that is close to body 901 is provided with the second bulge that is used for spacing to the distance ring 6, forms between second bulge and the distance ring 6 and is used for with distance ring 6 complex right angle to compress tightly spacing distance ring 6 on bearing frame 8. The bearing seat 8 is provided with a mounting hole corresponding to the connecting hole 904, the connecting hole 904 and the mounting hole are threaded holes, and the fixing between the distance ring 6 and the bearing seat 8 is realized after the screws 10 sequentially penetrate through the connecting hole 904 and the mounting hole. The protruding length of the first protruding portion 902 is set according to the distance of the body 901 from the bearing housing 8, and the protruding length of the second protruding portion is set according to the distance of the body 901 from the distance ring 6.
The work roll 1 is separated from the bearing housing 8.
S2, in the assembly process of the new working roller 1:
the work roll 1 is mounted on a bearing housing 8. Before the new work roll 1 is installed, it is necessary to make up the bearing block 8.
Releasing the locking and fixing between the distance ring 6 and the bearing seat 8; the locking means 9 between the distance ring 6 and the bearing housing 8 are removed so that the distance ring 6 is separated from the bearing housing 8. When the locking tool 9 between the distance ring 6 and the bearing seat 8 is removed, the screw 10 is only required to be removed, and the use is convenient.
The positioning key 7, the supporting ring 5, the pressing plate 4, the end cover 3 and the sealing ring 2 are sequentially installed.
In addition, in this embodiment, guard plates are disposed on two sides of the working roll 1 to protect personal safety, before the old working roll 1 is removed, the guard plates on two sides of the working roll 1 need to be removed, and after the new working roll 1 is installed, the guard plates need to be installed on two sides of the working roll 1.
Compared with the disassembly and assembly process when the existing working roller 1 is replaced, in the scheme, when the working roller 1 is replaced, the distance ring 6 is not required to be disassembled from the bearing seat 8, the distance ring 6 is not required to be assembled during subsequent assembly, a travelling crane and an impact head are not required, and the assembly efficiency of the working roller 1 can be effectively improved. Practice proves that the working roll 1 is disassembled and assembled by the method in the embodiment, the disassembly and assembly time of the working roll 1 can be shortened by half, and the working efficiency is effectively improved.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (5)
1. A method for quickly disassembling a work roll, comprising:
during the old working roll dismantling process:
dismantling a sealing ring, an end cover, a pressing plate, a supporting ring and a positioning key arranged on the distance ring and used for positioning the supporting ring;
the distance ring is locked and fixed on the bearing seat;
separating the work roll from the bearing block;
during the new working roll assembly process:
the working roller is arranged on a bearing seat;
releasing the locking and fixing between the distance ring and the bearing seat;
installing a positioning key, a supporting ring, a pressing plate, an end cover and a sealing ring;
when the distance ring is locked and fixed on the bearing seat, a locking tool is arranged, and the locking tool is connected with the distance ring and the bearing seat; the locking tool comprises a body, wherein a first protruding part for abutting against the bearing seat is protruding from the first end of the body, and a second protruding part for limiting the distance ring is arranged at a position, close to the second end, of the body;
the bearing seat is provided with a mounting hole for a locking tool, and the locking tool is in threaded connection with the bearing seat;
and a right angle for locking the distance ring is formed between the second protruding part and the second end of the body.
2. The method of quick assembly disassembly for a work roll according to claim 1, wherein the locking means are evenly disposed around the distance ring when installed.
3. The method for quickly assembling and disassembling the work roll according to claim 2, wherein the middle part of the body is provided with a connecting hole for connecting with the bearing seat.
4. The method of quick assembly disassembly for a work roll according to claim 1 wherein oil is replenished to the bearing prior to installation of a new work roll.
5. The method for quickly assembling and disassembling a work roll according to claim 1, wherein the guard plates on both sides of the old work roll are removed before the old work roll is removed, and the guard plates are installed on both sides of the work roll after the new work roll is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111608608.9A CN114289519B (en) | 2021-12-24 | 2021-12-24 | Quick dismounting method for working roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111608608.9A CN114289519B (en) | 2021-12-24 | 2021-12-24 | Quick dismounting method for working roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114289519A CN114289519A (en) | 2022-04-08 |
| CN114289519B true CN114289519B (en) | 2023-07-25 |
Family
ID=80969733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111608608.9A Active CN114289519B (en) | 2021-12-24 | 2021-12-24 | Quick dismounting method for working roller |
Country Status (1)
| Country | Link |
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| CN (1) | CN114289519B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0760319A (en) * | 1993-08-31 | 1995-03-07 | Nisshin Steel Co Ltd | Device for attaching and detaching chocks in rolling mill |
| CN201940423U (en) * | 2011-03-31 | 2011-08-24 | 十堰益民铜材有限公司 | Roll bearing seat assembly |
| CN208261529U (en) * | 2018-04-27 | 2018-12-21 | 中冶南方工程技术有限公司 | The roll shaft end construction of energy fast roll changing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0661302U (en) * | 1993-02-03 | 1994-08-30 | 株式会社神戸製鋼所 | Rolling roll fixing device |
| ITMI20011859A1 (en) * | 2001-09-04 | 2003-03-04 | Danieli Off Mecc | HYDRAULIC ASSEMBLY AND QUICK DISASSEMBLY OF LAMINATION CYLINDER BEARINGS AND RELATED METHOD OF USE |
| CN201055867Y (en) * | 2007-06-11 | 2008-05-07 | 湖南华菱涟钢薄板有限公司 | Axial direction locating fast package external member of pinch pass mill work roller bearing base |
| CN203599202U (en) * | 2013-11-15 | 2014-05-21 | 二重集团（德阳）重型装备股份有限公司 | Roller axial adjustment mechanism |
-
2021
- 2021-12-24 CN CN202111608608.9A patent/CN114289519B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0760319A (en) * | 1993-08-31 | 1995-03-07 | Nisshin Steel Co Ltd | Device for attaching and detaching chocks in rolling mill |
| CN201940423U (en) * | 2011-03-31 | 2011-08-24 | 十堰益民铜材有限公司 | Roll bearing seat assembly |
| CN208261529U (en) * | 2018-04-27 | 2018-12-21 | 中冶南方工程技术有限公司 | The roll shaft end construction of energy fast roll changing |
Non-Patent Citations (1)
| Title |
|---|
| 万能轧机轧辊轴承烧损故障探究;刘弋;;四川冶金(第06期);第32-35页 * |
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| CN114289519A (en) | 2022-04-08 |
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