CN114700370A - Rapid installation method of universal coupling of heavy and medium plate mill - Google Patents
Rapid installation method of universal coupling of heavy and medium plate mill Download PDFInfo
- Publication number
- CN114700370A CN114700370A CN202210318120.0A CN202210318120A CN114700370A CN 114700370 A CN114700370 A CN 114700370A CN 202210318120 A CN202210318120 A CN 202210318120A CN 114700370 A CN114700370 A CN 114700370A
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- China
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- universal coupling
- end part
- roller
- tool
- supporting block
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- 230000008878 coupling Effects 0.000 title claims abstract description 70
- 238000010168 coupling process Methods 0.000 title claims abstract description 70
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 title claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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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
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
Abstract
The invention discloses a quick installation method of a universal coupling of a heavy and medium plate mill, which comprises the steps of finishing quick installation of the universal coupling of the heavy and medium plate mill by using an installation tool; the end part of a universal coupling roller is sleeved on a main driving roller, a nut at the bottom of a supporting block of an adjusting tool and the bottom of an adjusting screw is abutted against an inclined plane of a shaft neck at the end part of the universal coupling roller, the height of a pre-tightening ring of the adjusting tool is adjusted, the pre-tightening ring is abutted against the end surface of the universal joint so as to fix the roller end part, the universal joint and the shaft end part of the universal coupling, and the main driving roller and the universal coupling are positioned by hydraulically driving a roller changing trolley to move; the flange at the end part of the universal coupling shaft and the flange at one end of the main shaft are connected by a positioning tool so as to realize concentric positioning, buckling and tensioning of the two flanges with larger concentricity deviation. The universal coupling of the heavy and medium plate mill can solve the problems of high replacement difficulty, high danger and low replacement speed of the universal coupling of the existing heavy and medium plate mill.
Description
Technical Field
The invention relates to the technical field of steel manufacturing and equipment thereof, in particular to a quick mounting method for a universal coupling at the main transmission roller end of each medium-large rolling mill in plate strip production.
Background
In the process of producing the medium-thickness plate strip, the universal coupling at the main transmission roller end of the rolling mill comprises a roller end part with one end connected with the main transmission roller and a shaft end part with the other end connected with the main shaft, the two sections are movably hinged through a universal joint, the roller end part is inclined with two sides of a shaft neck adjacent to the universal joint, the shaft end part and the universal joint are fixed and do not move relatively, and the shaft end part is buckled and connected with a flange at one end of the main shaft through a flange at the end. The universal coupling needs to be replaced regularly or replaced after a fault occurs, namely the old universal coupling is disassembled, and then a new universal coupling is installed again. When a new universal coupling is installed, a crane and a corresponding special lifting appliance are used for lifting, and after the universal coupling is lifted in place, the universal coupling is manually positioned and tensioned by using connecting bolts. Because the main transmission universal coupling of the rolling mill belongs to a special-shaped piece, and the two parts of the universal coupling can swing relatively, particularly, one end of the universal coupling is fixed and the other end of the universal coupling can drop after the universal coupling rotates, the universal coupling is difficult to fix and bind when a crane is used for hoisting; after the universal coupling is in place, the shaft end part of the universal coupling and the central line of the flange at one end of the main shaft are not overlapped, so that manual positioning and tensioning are needed, and great danger potential hazards exist; in addition, the bolt is used for positioning and tensioning, the efficiency is low, and the labor intensity of workers is high.
Disclosure of Invention
The invention aims to solve the problem of providing a quick mounting method of a universal coupling of a heavy and medium plate mill, and aims to solve the problems of high replacement difficulty, high danger and low replacement speed of the universal coupling of the heavy and medium plate mill in the prior art.
In order to solve the problems, the technical scheme of the invention is as follows: the quick installation method of the universal coupling of the heavy and medium plate mill comprises the steps of finishing quick installation of the universal coupling of the heavy and medium plate mill by using an installation tool;
the mounting tool comprises an adjusting tool clamped between the inclined plane of the shaft neck at the end part of the universal coupling roller and the universal joint, and a positioning tool penetrating through the flange at the end part of the universal coupling roller and the flange at one end of the main shaft;
the adjusting tool comprises an inverted U-shaped supporting block with a horizontally raised middle part, two ends of the bottom of the supporting block are long and short, a short side of the bottom of the supporting block inclines and is consistent with the inclination of an inclined plane of a journal at the end part of the universal coupling roller, an adjusting screw vertically penetrates through the horizontally raised middle part of the supporting block, a pre-tightening ring with internal threads is arranged at the top of the adjusting screw above the supporting block, the adjusting screw inclines at the bottom of a nut at the bottom end below the supporting block and is consistent with the inclination of the inclined plane of the journal at the end part of the universal coupling roller, and a hole through which the adjusting screw penetrates is a long hole and extends to one side of the supporting block;
the positioning tool comprises a taper screw rod connected with the positioning tool;
the installation method comprises the following steps:
sleeving the end part of the universal coupling roller on a main driving roller, abutting the bottom of a supporting block of an adjusting tool and a nut at the bottom of an adjusting screw on an inclined plane of a shaft neck at the end part of the universal coupling roller, adjusting the height of a pre-tightening ring of the adjusting tool, abutting the pre-tightening ring on the end surface of the universal joint so as to fix the roller end part of the universal coupling, the universal joint and the shaft end part, and driving a roller changing trolley to move through hydraulic pressure to position the main driving roller and the universal coupling in place; the flange at the end part of the universal coupling shaft and the flange at one end of the main shaft are connected by a positioning tool so as to realize concentric positioning, buckling and tensioning of the two flanges with larger concentricity deviation.
In the above technical solution, a more specific solution may be: an adjusting nut is arranged below a pre-tightening ring at the top end of an adjusting screw of the adjusting tool.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
according to the rapid mounting method of the universal coupling of the heavy and medium plate mill, the screw penetrating through the supporting block is propped between the inclined surface of the shaft neck at the end part of the universal coupling roller and the universal joint, so that the roller end part of the universal coupling is fixedly sleeved with the main transmission roller, and when the shaft end part is loosened, the roller end part cannot move relative to the universal joint to fall down, and the risk and the operation difficulty are greatly reduced; the positioning tool penetrating through the flange at the end part of the universal coupling shaft and the flange at one end of the main shaft can solve the problem that the central lines of the end part of the universal coupling shaft and the main shaft at the initial stage are not completely superposed and can not be completely centered by using the taper screw rod, two holes with large concentricity deviation are connected through the taper screw rod, the positioning and tensioning functions of the spindle and the spindle are realized, the operation difficulty is reduced, and the roll changing speed is improved.
Drawings
FIG. 1 is an isometric view of an embodiment of the invention and a universal joint;
FIG. 2 is a front view of an adjustment tool according to an embodiment of the present invention;
FIG. 3 is a top view of an adjustment tool according to an embodiment of the present invention;
FIG. 4 is a left side view of an adjustment tool of an embodiment of the present invention;
FIG. 5 is an isometric view of a positioning tool according to an embodiment of the invention;
fig. 6 is a mounting state diagram of the embodiment of the present invention.
Detailed Description
The embodiments of the invention will be described in further detail with reference to the accompanying drawings:
the quick mounting method of the universal coupling of the heavy and medium plate mill comprises the step of quickly mounting the universal coupling of the heavy and medium plate mill by using a mounting tool.
The mounting tool shown in figure 1 comprises an adjusting tool 5 clamped between a shaft neck inclined plane at the roller end part 4-1 of the universal coupling 4 and a universal joint 4-2, and a positioning tool 6 penetrating through a flange 4-3 at the shaft end part 4-3 of the universal coupling 4 and a flange 8-1 at one end of a main shaft 8.
The adjusting tool shown in figures 2 to 4 comprises an inverted U-shaped supporting block 5-1 with a middle horizontal bulge, wherein two ends of the bottom of the supporting block 5-1 are long and short, the short edge of the bottom of the supporting block 5-1 is inclined and is consistent with the inclination of the inclined plane of the end journal 4-1 of the universal coupling roller, an adjusting screw 5-2 is vertically arranged in the middle horizontal bulge of the supporting block 5-1 in a penetrating manner, a pre-tightening ring 5-3 with internal threads is arranged at the top of the adjusting screw 5-2 above the supporting block 4, an adjusting nut 5-4 is arranged below the pre-tightening ring 5-3 at the top end of the adjusting screw 5-2 of the adjusting tool, the bottom of the nut 5-5 at the bottom end of the adjusting screw 5-2 below the supporting block 5-1 is inclined and is consistent with the inclination of the inclined plane of the end journal 4-1 of the universal coupling roller, the hole through which the adjusting screw 5-1 passes is a long hole 5-6 and extends to one side of the supporting block 5-1.
The positioning tool shown in fig. 5 is for connecting a tapered screw 6.
The installation method comprises the following steps:
as shown in figure 6, a universal coupling roller end part 4-1 is sleeved on a main driving roller 3, a support block 5-1 bottom of an adjusting tool 5 and a nut 5-5 at the bottom of an adjusting screw are abutted on an inclined plane of a shaft neck of the universal coupling roller end part 4-1, the height of a pre-tightening ring 5-3 of the adjusting tool 5 is adjusted, the pre-tightening ring 5-3 is abutted on the end face of a universal joint 4-2, so as to fix a roller end part 4-1, a universal joint 4-2 and a shaft end part 4-3 of the universal coupling, so that the roller end part and the shaft end part of the universal coupling do not move relatively, the shaft end part 4-3 does not fall down during rotation, safety accidents are avoided, the main driving roller 3 and the universal coupling 4 are pushed in by moving a hydraulic drive roller changing trolley 2, here, a connecting arm with a clamping groove at the tail end is connected by a hydraulic power cylinder 1, the clamping hook of the roll changing trolley 2 is clamped in the clamping groove of the connecting arm, and the hydraulic power cylinder 1 stretches and retracts to drive the connecting arm to move so as to drive the roll changing trolley 2 to move; in the process, the start and stop of the hydraulically driven roll changing trolley 2 are controlled until the universal coupling 4 is in place; if the adjusting tool 5 is jammed during assembly, the position of the main shaft 8 can be adjusted by operating the swing device 7, so that the adjusting tool 5 can be installed as required. And then, a positioning tool 6 is used for connecting a flange 4-4 at the shaft end part of the universal coupling 4 and a flange 8-1 at one end of the main shaft 8, namely, two conical screws are used for connecting holes on the two flanges, the left side and the right side of each conical screw are connected with one conical screw, so that the two flanges with larger concentricity deviation are concentrically positioned, fastened and tensioned.
Compared with the original installation method, the rapid installation method is safer and more efficient, and completely meets the production requirements.
Claims (2)
1. A quick installation method of a universal coupling of a heavy and medium plate mill is characterized in that: the method comprises the steps of finishing the rapid installation of the universal coupling of the heavy and medium plate mill by using an installation tool;
the mounting tool comprises an adjusting tool clamped between the inclined plane of the shaft neck at the end part of the universal coupling roller and the universal joint and a positioning tool penetrating through the flange at the end part of the universal coupling roller and the flange at one end of the main shaft;
the adjusting tool comprises an inverted U-shaped supporting block with a horizontally raised middle part, two ends of the bottom of the supporting block are long and short, a short side of the bottom of the supporting block inclines and is consistent with the inclination of an inclined plane of a journal at the end part of the universal coupling roller, an adjusting screw vertically penetrates through the horizontally raised middle part of the supporting block, a pre-tightening ring with internal threads is arranged at the top of the adjusting screw above the supporting block, the adjusting screw inclines at the bottom of a nut at the bottom end below the supporting block and is consistent with the inclination of the inclined plane of the journal at the end part of the universal coupling roller, and a hole through which the adjusting screw penetrates is a long hole and extends to one side of the supporting block;
the positioning tool comprises a taper screw rod connected with the positioning tool;
the installation method comprises the following steps:
the end part of a universal coupling roller is sleeved on a main driving roller, a nut at the bottom of a supporting block of an adjusting tool and the bottom of an adjusting screw is abutted against an inclined plane of a shaft neck at the end part of the universal coupling roller, the height of a pre-tightening ring of the adjusting tool is adjusted, the pre-tightening ring is abutted against the end surface of the universal joint so as to fix the roller end part, the universal joint and the shaft end part of the universal coupling, and the main driving roller and the universal coupling are positioned by hydraulically driving a roller changing trolley to move; the flange at the end part of the universal coupling shaft and the flange at one end of the main shaft are connected by a positioning tool so as to realize concentric positioning, buckling and tensioning of the two flanges with larger concentricity deviation.
2. The method for rapidly installing the universal coupling of the heavy and medium plate mill according to claim 1, wherein: an adjusting nut is arranged below a pre-tightening ring at the top end of an adjusting screw of the adjusting tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318120.0A CN114700370B (en) | 2022-03-29 | Rapid installation method of universal coupling of heavy and medium plate mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318120.0A CN114700370B (en) | 2022-03-29 | Rapid installation method of universal coupling of heavy and medium plate mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114700370A true CN114700370A (en) | 2022-07-05 |
| CN114700370B CN114700370B (en) | 2024-05-10 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333319A (en) * | 1979-07-03 | 1982-06-08 | Gelenkwellenbau Gmbh | Universal joint assembly |
| CN201711351U (en) * | 2010-06-18 | 2011-01-19 | 宝山钢铁股份有限公司 | Cross universal joint of main transmission shaft of heavy plate mill |
| CN202943080U (en) * | 2012-05-30 | 2013-05-22 | 武汉钢铁(集团)公司 | Position adjusting device for rolling mill transmission shaft cross bag connecting flange |
| CN203432750U (en) * | 2013-07-05 | 2014-02-12 | 资阳南车传动有限公司 | Dynamic balance unit for cross universal coupling |
| CN203578369U (en) * | 2013-11-11 | 2014-05-07 | 内蒙古包钢钢联股份有限公司 | Axial positioning device for horizontal rolling mill coupler |
| TWM521694U (en) * | 2015-11-19 | 2016-05-11 | China Steel Corp | Adjusting holder |
| CN105689401A (en) * | 2016-04-08 | 2016-06-22 | 宁波大学 | Integrated cross wedge rolling mill driven by hydraulic motor |
| CN205518991U (en) * | 2016-04-21 | 2016-08-31 | 新兴铸管股份有限公司 | Universal joint and stock reinforcing bar mill |
| CN206051276U (en) * | 2016-08-29 | 2017-03-29 | 宝山钢铁股份有限公司 | A kind of universal shaft moving device of vertical roll of rolling main transmission |
| CN211967352U (en) * | 2019-12-26 | 2020-11-20 | 山东朝阳轴承有限公司 | Main bearing detacher |
| CN112024609A (en) * | 2019-06-04 | 2020-12-04 | 上海梅山钢铁股份有限公司 | Method for rapidly replacing transmission shaft of cold rolling mill |
| CN215318448U (en) * | 2021-08-03 | 2021-12-28 | 淄柴机器有限公司 | Automatically controlled pump shaft end flange dismounting device |
| CN217222968U (en) * | 2022-03-29 | 2022-08-19 | 柳州钢铁股份有限公司 | Quick mounting tool for universal coupling of heavy and medium plate mill |
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333319A (en) * | 1979-07-03 | 1982-06-08 | Gelenkwellenbau Gmbh | Universal joint assembly |
| CN201711351U (en) * | 2010-06-18 | 2011-01-19 | 宝山钢铁股份有限公司 | Cross universal joint of main transmission shaft of heavy plate mill |
| CN202943080U (en) * | 2012-05-30 | 2013-05-22 | 武汉钢铁(集团)公司 | Position adjusting device for rolling mill transmission shaft cross bag connecting flange |
| CN203432750U (en) * | 2013-07-05 | 2014-02-12 | 资阳南车传动有限公司 | Dynamic balance unit for cross universal coupling |
| CN203578369U (en) * | 2013-11-11 | 2014-05-07 | 内蒙古包钢钢联股份有限公司 | Axial positioning device for horizontal rolling mill coupler |
| TWM521694U (en) * | 2015-11-19 | 2016-05-11 | China Steel Corp | Adjusting holder |
| CN105689401A (en) * | 2016-04-08 | 2016-06-22 | 宁波大学 | Integrated cross wedge rolling mill driven by hydraulic motor |
| CN205518991U (en) * | 2016-04-21 | 2016-08-31 | 新兴铸管股份有限公司 | Universal joint and stock reinforcing bar mill |
| CN206051276U (en) * | 2016-08-29 | 2017-03-29 | 宝山钢铁股份有限公司 | A kind of universal shaft moving device of vertical roll of rolling main transmission |
| CN112024609A (en) * | 2019-06-04 | 2020-12-04 | 上海梅山钢铁股份有限公司 | Method for rapidly replacing transmission shaft of cold rolling mill |
| CN211967352U (en) * | 2019-12-26 | 2020-11-20 | 山东朝阳轴承有限公司 | Main bearing detacher |
| CN215318448U (en) * | 2021-08-03 | 2021-12-28 | 淄柴机器有限公司 | Automatically controlled pump shaft end flange dismounting device |
| CN217222968U (en) * | 2022-03-29 | 2022-08-19 | 柳州钢铁股份有限公司 | Quick mounting tool for universal coupling of heavy and medium plate mill |
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