CN104512804A - Method for preventing upright hoisting of super-huge rolling mill from swinging - Google Patents
Method for preventing upright hoisting of super-huge rolling mill from swinging Download PDFInfo
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- CN104512804A CN104512804A CN201310448340.6A CN201310448340A CN104512804A CN 104512804 A CN104512804 A CN 104512804A CN 201310448340 A CN201310448340 A CN 201310448340A CN 104512804 A CN104512804 A CN 104512804A
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- China
- Prior art keywords
- mill housing
- mill
- sliding trolley
- rolling mill
- pivot point
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to a hoisting method for a huge rolling mill. Disclosed is a method for preventing upright hoisting of a super-huge rolling mill from swinging, which comprises two steps: step 1, calculating a critical distance A between a bottom of a mill housing of a rolling mill and a sliding trolley; and step 2, completing the upright hoisting of the mill housing of the rolling mill. The step 2 comprises the following steps: firstly, laying a row of sleepers on the sliding trolley; secondly, welding a U-steel at the tail of the sliding trolley to prevent the sleepers from moving; thirdly, rotating the mill housing of the rolling mill at an initial rotation point and forming a final rotation point when the mill housing of the rolling mill contacts with the sleepers; and finally, when the mill housing of the rolling mill is hoisted, rotating the mill housing of the rolling mill at the final rotation point, and hoisting the mill housing of the rolling mill till upright at the final rotation point. The mill housing of the rolling mill is hoisted at the final rotation point; when the mill housing of the rolling mill is at a vertical position, the hoisting point of the mill housing of the rolling mill, the gravity center of the mill housing of the rolling mill and the final rotation point locate on a same vertical plane and gravity moment is zero; and the upright hoisting of the mill housing of the rolling mill is stably completed. The method in the invention is low in construction cost and has high security and good stability.
Description
Technical field
The present invention relates to large-sized rolling mills, particularly relate to a kind of large-sized rolling mills hanging method.
Background technology
Along with the progress and development of science and technology, large-scale steel rolling equipment technique is constantly updated, and milling equipment maximizes more.As the mill housing Heavy Weight of Wide and Thick Slab engineering, oad is large, belongs to super-huge milling train.See Fig. 1, lifting for super-huge milling train usually adopts and lifts with the method carrying out rotating for pivot point with the contact point of sliding trolley 1 bottom mill housing 2, and before mill housing enters plumb position, when the contact point of mill housing and sliding trolley and lifting point are on same vertical guide, just depart from sliding trolley bottom mill housing, now sliding trolley is zero to the support reaction of mill housing, mill housing is by under the effect of gravity torque, to freely swing around lifting point, freely swinging of mill housing can have a strong impact on the stability of hydraulic jacking device, thus reduce the safety of super-huge milling train lifting.Do not freely swing when how to avoid super-huge hoisting mill housing upright, hoisting mill housing technical merit is had higher requirement.
Summary of the invention
The present invention is intended to the defect overcoming prior art, provide a kind of prevent super-huge milling train lift upright time occur swing method.The present invention solve the lifting of super-huge milling train upright time there is the difficult problem that swings, improve Hoisting Security.
In order to solve the problems of the technologies described above, of the present invention a kind of prevent super-huge milling train lift upright time occur swing method, it comprises:
First stage calculates the critical range A bottom mill housing and between sliding trolley, namely when mill housing rotates with initial pivot point, just depart from sliding trolley bottom mill housing, the distance now bottom mill housing and between sliding trolley is then the critical range A bottom mill housing and between sliding trolley;
Subordinate phase has been that the lifting of mill housing is upright;
First on sliding trolley, lay row's sleeper; Secondly, at sliding trolley afterbody welding channel-section steel, the play of sleeper is prevented; Hoisting rolling mill housings rotates with initial pivot point, forms final pivot point when mill housing contacts with sleeper;
Subsequently during hoisting rolling mill housings, then mill housing will rotate with final pivot point, and carry out mill housing rotary hoisting with final pivot point until upright, namely mill housing is with final pivot point rotary hoisting, when mill housing enters plumb position, the lifting point of mill housing, mill housing center of gravity and final pivot point are on same vertical guide, and gravity torque is zero, and it is upright that mill housing steadily completes lifting.
The described method occurring to swing when preventing super-huge milling train from lifting upright, the specific practice of described first stage is by the scale sliding trolley of 1:1, mill housing, lifting point, mill housing center of gravity, initial pivot point, and with initial pivot point rotary rolling mill memorial archway, initial pivot point and lifting point is made to be on same vertical guide, measure the distance bottom milling train centerline mill housing and between sliding trolley, be the critical range A bottom mill housing and between sliding trolley.
The described method occurring to swing when preventing super-huge milling train from lifting upright, the length L of the sleeper in described subordinate phase is the distance of milling train distance between center line sliding trolley afterbody, the height B 50 ~ 100mm larger than the critical range A bottom mill housing and between sliding trolley of sleeper.
The invention solves the lifting of super-huge milling train upright time there is the difficult problem that swings.Construction cost is low, high safety, good stability.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is operating mode schematic diagram described in background technology part of the present invention;
Fig. 2 is first stage schematic diagram of the present invention;
Fig. 3-Fig. 7 is invention subordinate phase process schematic.
Detailed description of the invention
The present invention divides two stages to implement, and lifts super-huge milling train be described for hydraulic jacking device:
The groundwork of first stage calculates the critical range A bottom mill housing 2 and between sliding trolley 1, namely when mill housing 2 rotates with initial pivot point 8, just depart from sliding trolley 1 bottom mill housing 2, the distance now bottom mill housing 2 and between sliding trolley 1 is then the critical range A bottom mill housing 2 and between sliding trolley 1;
Specific practice is utilize CAD computer software by the scale sliding trolley 1 of 1:1, mill housing 2, lifting point 6, mill housing center of gravity 7, initial pivot point 8, and with initial pivot point 8 rotary rolling mill memorial archway 2, initial pivot point 8 is made to be on same vertical guide with lifting point 6, measure the distance bottom milling train centerline mill housing 2 and between sliding trolley 1, be the critical range A bottom mill housing 2 and between sliding trolley 1, as shown in Figure 2.
The groundwork of subordinate phase has been that the lifting of mill housing is upright.
First on sliding trolley 1, lay row's sleeper 4.Wherein, the length L of sleeper is the distance of milling train distance between center line sliding trolley 1 afterbody, the height B of sleeper should than at least 50 ~ 100mm greatly of the critical range A bottom mill housing 2 and between sliding trolley 1, be convenient to mill housing 2 in upright process, can complete smoothly by the transition of initial pivot point 8 to final pivot point 9, not freely swing when guaranteeing that super-huge hoisting mill housing is upright.Secondly, at the afterbody welding channel-section steel 5 of sliding trolley 1, the play of sleeper is prevented, as shown in Figure 3.Hoisting rolling mill housings 2 rotates with initial pivot point 8, mill housing 2 is contacted, as shown in Figure 4 with sleeper 4.Form final pivot point 9 when mill housing 2 contacts with sleeper 4, subsequently during hoisting rolling mill housings 2, then mill housing 2 will rotate with final pivot point 9, as shown in Figure 5.Again, mill housing 2 rotary hoisting is carried out with final pivot point 9 until upright, as shown in Figure 6.Mill housing 2 is with final pivot point 9 rotary hoisting, when mill housing 2 enters plumb position, the lifting point 9 of mill housing 2, mill housing center of gravity 7 and final pivot point 9 are on same vertical guide, gravity torque is zero, it is upright that mill housing 2 steadily completes lifting, ensure that the safety of hoisting mill housing, as shown in Figure 7.
Claims (3)
1. the method swung occurs when preventing super-huge milling train from lifting upright, and it is characterized in that, it comprises:
First stage calculates the critical range A bottom mill housing and between sliding trolley, namely when mill housing rotates with initial pivot point, just depart from sliding trolley bottom mill housing, the distance now bottom mill housing and between sliding trolley is then the critical range A bottom mill housing and between sliding trolley;
Subordinate phase has been that the lifting of mill housing is upright;
First on sliding trolley, lay row's sleeper; Secondly, at sliding trolley afterbody welding channel-section steel, the play of sleeper is prevented; Hoisting rolling mill housings rotates with initial pivot point, forms final pivot point when mill housing contacts with sleeper;
Subsequently during hoisting rolling mill housings, then mill housing will rotate with final pivot point, and carry out mill housing rotary hoisting with final pivot point until upright, namely mill housing is with final pivot point rotary hoisting, when mill housing enters plumb position, the lifting point of mill housing, mill housing center of gravity and final pivot point are on same vertical guide, and gravity torque is zero, and it is upright that mill housing steadily completes lifting.
2. according to claim 1 prevent super-huge milling train lift upright time occur swing method, it is characterized in that, the specific practice of described first stage is by the scale sliding trolley of 1:1, mill housing, lifting point, mill housing center of gravity, initial pivot point, and with initial pivot point rotary rolling mill memorial archway, initial pivot point and lifting point is made to be on same vertical guide, measure the distance bottom milling train centerline mill housing and between sliding trolley, be the critical range A bottom mill housing and between sliding trolley.
3. according to claim 1 prevent super-huge milling train lift upright time occur swing method, it is characterized in that, wherein, the length L of the sleeper in described subordinate phase is the distance of milling train distance between center line sliding trolley afterbody, the height B 50 ~ 100mm larger than the critical range A bottom mill housing and between sliding trolley of sleeper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310448340.6A CN104512804A (en) | 2013-09-27 | 2013-09-27 | Method for preventing upright hoisting of super-huge rolling mill from swinging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310448340.6A CN104512804A (en) | 2013-09-27 | 2013-09-27 | Method for preventing upright hoisting of super-huge rolling mill from swinging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104512804A true CN104512804A (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310448340.6A Pending CN104512804A (en) | 2013-09-27 | 2013-09-27 | Method for preventing upright hoisting of super-huge rolling mill from swinging |
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| Country | Link |
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| CN (1) | CN104512804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369512A (en) * | 2019-06-27 | 2019-10-25 | 中国二十冶集团有限公司 | A method of it is swung when preventing rolling-mill housing from uprightly separating |
Citations (5)
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|---|---|---|---|---|
| JP2003146578A (en) * | 2001-11-12 | 2003-05-21 | Daifuku Co Ltd | Erecting method for framework body |
| CN101337640A (en) * | 2008-06-19 | 2009-01-07 | 中国石油化工集团公司 | Lifting and hoisting method of vertical equipment |
| CN101381054A (en) * | 2008-09-12 | 2009-03-11 | 中国石油化工集团公司 | Hinge support for hanging vertical type equipment by crane push method |
| CN101537973A (en) * | 2009-04-21 | 2009-09-23 | 武汉冶建安装工程有限责任公司 | Method for continuously hoisting rolling mill housings by hydraulic pushing and lifting |
| CN102756975A (en) * | 2012-07-20 | 2012-10-31 | 天津二十冶建设有限公司 | Method for hoisting rolling mill housing |
-
2013
- 2013-09-27 CN CN201310448340.6A patent/CN104512804A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003146578A (en) * | 2001-11-12 | 2003-05-21 | Daifuku Co Ltd | Erecting method for framework body |
| CN101337640A (en) * | 2008-06-19 | 2009-01-07 | 中国石油化工集团公司 | Lifting and hoisting method of vertical equipment |
| CN101381054A (en) * | 2008-09-12 | 2009-03-11 | 中国石油化工集团公司 | Hinge support for hanging vertical type equipment by crane push method |
| CN101537973A (en) * | 2009-04-21 | 2009-09-23 | 武汉冶建安装工程有限责任公司 | Method for continuously hoisting rolling mill housings by hydraulic pushing and lifting |
| CN102756975A (en) * | 2012-07-20 | 2012-10-31 | 天津二十冶建设有限公司 | Method for hoisting rolling mill housing |
Non-Patent Citations (2)
| Title |
|---|
| 王志远: "滚排滑移法吊装重型反应器", 《第3届全国工程建设行业吊装市场研讨暨技术交流会论文集》, 29 September 2010 (2010-09-29), pages 45 - 48 * |
| 胡忠华 等: "浅谈轧机牌坊的吊装方法", 《硅谷》, no. 11, 31 December 2010 (2010-12-31), pages 144 - 146 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369512A (en) * | 2019-06-27 | 2019-10-25 | 中国二十冶集团有限公司 | A method of it is swung when preventing rolling-mill housing from uprightly separating |
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Application publication date: 20150415 |