CN102172632B - Rolling mill capable of rapidly replacing roller and roller replacing method thereof - Google Patents
Rolling mill capable of rapidly replacing roller and roller replacing method thereof Download PDFInfo
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- CN102172632B CN102172632B CN201110025614A CN201110025614A CN102172632B CN 102172632 B CN102172632 B CN 102172632B CN 201110025614 A CN201110025614 A CN 201110025614A CN 201110025614 A CN201110025614 A CN 201110025614A CN 102172632 B CN102172632 B CN 102172632B
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Abstract
The invention discloses a rolling mill capable of rapidly replacing a roller and a roller replacing method thereof. The rolling mill comprises a frame assembly, a roller assembly and a roller replacing device, wherein an operating side frame of the frame assembly is provided with a window through which an entire roller group can be moved out; an operating side frame end cover is fixedly arranged on a shift-out trolley of the roller replacing device and is attached to the operating side frame; the operating side frame end cover or the shift-out trolley is provided with a hook; and the hook and the roller group or the roller group trolley are fixed with each other along the direction of the shift-out trolley, and are in sliding fit with each other along the direction of a traversing guide rail. During roller replacement with the rolling replacing method disclosed by the invention, the entire operating side frame end cover and the entire roller group are moved out/in and are positioned quickly and accurately without detaching or moving the operating side frame, so that frequent repeated positioning of the frame is avoided. Compared with the prior art, the rolling mill has the advantages that: the equipment running stability is enhanced, the production and manufacturing requirements on the rolling mill are lowered, the equipment maintainability is enhanced, the dimensional accuracy of a rolled product is more stable, the roller replacing time is shorter, and the production efficiency is higher.
Description
Technical field
The present invention relates to shaped steel production equipment field, the roll-changing method of particularly a kind of milling train and milling train.
Background technology
At present; The universal rolling method has generally been adopted in the production of shaped steel, and wherein universal mill is to carry out the main equipment that shaped steel is produced, in the operation of rolling of universal mill; Roll wear is very fast; Need often to change roll stacks, therefore, the time length of roll change operation has determined the production efficiency of universal mill to a great extent.
Universal mill mainly comprises roll and frame, and wherein roll is made up of an a pair of horizontal roller and an opposite roller, is characterized in roll axis in same vertical plane, and each roll can slide in frame rolled piece is rolled along reaching left and right directions up and down simultaneously.In the prior art, for realize roll pack into and taking-up reaches the roll change purpose, adopted following several method: the one, adopted left and right sides frame shown by milling train side rotation, the method that hangs out roll again realizes roll change, like UD type universal mill; The 2nd, adopted the mode that left and right sides frame has been become vertical pull bar and middle memorial archway, during roll change, at first these pull bars are accessed, progressively change horizontal roller and edger roll again, like CU type universal mill; The 3rd, adopted left frame is pulled away from out, make with right frame and separate, again roll is put into, realize roll change, like the CCS universal mill.More than these methods all be found in the introduction of UD type, CU type and CCS universal mill in " the modern beam-and-rail production technology " that metallurgical industry publishing house publishes.
Above-mentioned roll-changing method all needs dismounting or moving frame to reach the purpose that roll is packed into or taken out in practical application, like the disclosed a kind of milling train of patent " CN201140198Y "; Just need the move operation side frame during roll change, therefore, adopt above-mentioned roll-changing method must cause the higher repetitive positioning accuracy of frame needs; The manufacturing and the installation requirement of frame are high, thereby have increased the cost of the roll changing time and the manufacturing, in addition; Often dismantle moving frame; Make the poor stability of equipment, maintainable low etc., these combined factors are got up precision that has a strong impact on rolled products and production efficiency.
Therefore, need to explore the roll-changing method of a kind of milling train and milling train, do not dismantle or moving frame can be realized fast roll changing, cause stabilization of equipment performance poor, maintainable low, simultaneously, also reduce roll changing time, reduce the manufacturing cost of milling train in order to avoid the frequent dismounting of frame is moved.
Summary of the invention
In view of this; But the present invention provides a kind of milling train and roll-changing method thereof of fast roll changing, and this milling train mid frame is fixed, and only the mobile realization roll stacks through end cap moves in and out; And accurate positioning reaches and does not dismantle or moving frame can be realized the purpose of fast roll changing.
But the milling train of fast roll changing of the present invention; Comprise housing assembly, roller assembly and changing rig; Said housing assembly comprises rack rail, is fixedly set in transmission side frame and fore side frame on the rack rail; Fore side frame arranged outside has fore side frame end cap; Said roller assembly comprises the roll stacks guide rail that is parallel to rack rail, can and be arranged at the roll stacks on the roll stacks dolly at the roll stacks dolly that moves back and forth on the roll stacks guide rail; Roll stacks is between transmission side frame and fore side frame, and said changing rig comprises and is parallel to shifting out guide rail, can shifting out shifting out dolly, being horizontally disposed with and perpendicular to the traversing guide rail that shifts out guide rail and the traversing dolly that can on traversing guide rail, move back and forth, traversing guide rail is arranged at the interlude that shifts out guide rail of moving back and forth on the guide rail of rack rail; Traversing dolly be provided with two groups can be respectively with shift out guide rail and roll stacks guide rail and dock the guide rail section that forms continuous guide rail; The window can let roll stacks integral body shift out is set on the said fore side frame, and fore side frame end cap is fixedly set in and shifts out on the dolly and be fitted on the fore side frame, fore side frame end cap or shift out hook is set on the dolly; Fix along shifting out the guide rail direction between hook and roll stacks or the roll stacks dolly, be slidingly matched along traversing guide rail direction.
Further; Also comprise the frame take-up device; Said frame take-up device comprises the tension cylinder that is arranged on the transmission side frame, be connected in the tension cylinder the motion output tie rod and be arranged at the latch cylinder that the fore side stander end covers; Tie rod passes transmission side frame, fore side frame and fore side frame end cap successively, and tie rod stretches out one section pin-and-hole that is provided with the latch insertion that is used for the latch cylinder of fore side frame end cap;
Further, a plurality of mounting holes of said pin-and-hole for axially being set up in parallel along tie rod;
Further, said fore side frame is fixedly set on the rack rail through the locking cylinder that is arranged on himself;
Further, the said dolly that shifts out is provided with clamping block, and the fore side frame is provided with and is used for the chucking cylinder that is fixedly connected with clamping block;
Further, said changing rig also comprises and shifts out hydraulic cylinder and traversing hydraulic cylinder, the said motion output that shifts out hydraulic cylinder with shift out dolly and be connected, the motion output of traversing hydraulic cylinder is connected with traversing dolly.
But the method that the present invention also provides a kind of milling train that utilizes above-mentioned fast roll changing to carry out roll change may further comprise the steps:
A) let one group of guide rail section on the traversing dolly dock and form continuous guide rail with shifting out guide rail and roll stacks guide rail, on another group guide rail section on the traversing dolly, place in advance one the roll stacks that will change is housed the roll stacks dolly;
B) control tension cylinder loosens tie rod, and the latch cylinder is extracted latch out, removes the tension of frame;
C) control is shifted out dolly to moving away from fore side frame direction, makes fore side frame end cap and roll stacks dolly and the roll stacks integral body that will change is pulled out from the window of fore side frame, moves to fully on the traversing dolly up to the roll stacks dolly;
D) the traversing dolly of control moves, and the roll stacks that change is removed, let the corresponding one group of guide rail section of the roll stacks that will change with shift out guide rail and the roll stacks guide rail docks;
E) control is shifted out the corresponding roll stacks dolly of roll stacks that dolly promotes to change and is moved to fore side frame direction, is fitted on the fore side frame up to fore side frame end cap;
F) control latch cylinder inserts latch in tie rod, and the tension of tension cylinder makes frame be in tension, accomplishes the roll change operation.
Beneficial effect of the present invention: but the milling train of fast roll changing of the present invention and roll-changing method thereof do not need frequent dismounting or moving frame when roll change, avoid the frequent resetting of frame, have the following advantages with respect to the milling train of prior art:
1) operation stability of equipment improves;
2) milling train production and manufacturing cost reduce;
3) equipment is maintainable better;
4) dimensional accuracy of rolled products is more stable;
5) roll changing time is shorter, and production efficiency is higher.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of roll change state of the present invention;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is fore side frame end cap and the structural representation that shifts out dolly.
The specific embodiment
Fig. 1 is a structural representation of the present invention; Fig. 2 is the structural representation of roll change state of the present invention; Fig. 3 is the A-A cutaway view of Fig. 2, and Fig. 4 is fore side frame end cap and the structural representation that shifts out dolly, and is as shown in the figure: but the milling train of the fast roll changing of present embodiment; Comprise housing assembly, roller assembly and changing rig; Said housing assembly comprises two rack rails that laterally arrange 1, is fixedly set in transmission side frame 2 and fore side frame 3 on the rack rail 1, and fore side frame 3 arranged outside have fore side frame end cap 4, said roller assembly comprise be parallel to rack rail 1 and at two roll stacks guide rails 5 between two rack rails, can and be arranged at the roll stacks 7 on the roll stacks dolly 6 at the roll stacks dolly 6 that moves back and forth on the roll stacks guide rail 5; During milling train work; Roll stacks 7 is between transmission side frame 2 and fore side frame 3, and through being arranged at a series of hydraulic cylinder control actions and the balance on transmission side frame and the fore side frame in the prior art, said changing rig comprises that two of being parallel to rack rail 1 shift out guide rail 8, can shift out shifting out dolly 9, being horizontally disposed with and perpendicular to the traversing guide rail 10 that shifts out guide rail 8 and the traversing dolly 11 that can on traversing guide rail 10, move back and forth of moving back and forth on the guide rail 8; Traversing guide rail 10 is arranged at the interlude that shifts out guide rail 8; Promptly shift out the part of guide rail between two traversing guide rails and break off, shift out guide rail and stretch out traversing guide rail one segment distance, this section stretches out shifts out guide rail and when the roll stacks dolly moves on the traversing dolly, is used to park and shifts out dolly; Traversing dolly 11 be provided with two groups can be respectively with shift out guide rail section 12a, the 12b that guide rail 8 and roll stacks guide rail 5 docks the continuous guide rail of formation; Guide rail section 12a is used to park the corresponding roll stacks dolly of roll stacks that need change, and guide rail section 12b is used to park the corresponding roll stacks dolly of roll stacks that need change, and the window 3a that can let roll stacks 7 integral body shift out is set on the said fore side frame 3; Promptly require the Breadth Maximum of the width of window 3a greater than roll stacks; Fore side frame end cap 4 is fixedly set in and shifts out on the dolly 9 and be fitted on the fore side frame 3, and difference with the prior art is: fore side frame end cap is to be fixedly connected on the fore side frame through securing member in the prior art, fore side frame end cap 4 or shift out hook 13 is set on the dolly 9; Hook is hooked in the groove that is arranged at the traversing guide rail direction of roll stacks or roll stacks dolly upper edge with the mode that is slidingly matched; Can realize fixing along shifting out guide rail 8 directions between hook and roll stacks 7 or the roll stacks dolly 6, be slidingly matched along traversing guide rail 10 directions, during roll change; It is whole mobile to shift out dolly drive fore side frame end cap and roller assembly; From window, pull out and push roll stacks, because vertical fixed lateral slip characteristics of hook, when traversing dolly laterally moves; Can the roll stacks of changing be pushed away away, hook roll stacks or the corresponding roll stacks dolly of this roll stacks that to change and let.The present invention compared with prior art, the fore side frame is fixed during roll change, avoids frame is carried out frequent resetting, operation stability of equipment improves, and the production of milling train and manufacturing is required low, effectively shortens roll changing time, enhances productivity.
In the present embodiment; Also comprise the frame take-up device; Said frame take-up device comprises the tension cylinder 14 that is arranged on the transmission side frame 2, be connected in tension cylinder 14 the motion output tie rod 15 and be arranged at the latch cylinder 16 on the fore side frame end cap 4, tension cylinder, tie rod and latch cylinder all are provided with 4, strain at four angles that are uniformly distributed in frame; Tie rod 15 passes transmission side frame 2, fore side frame 3 and fore side frame end cap 4 successively; Tie rod 15 stretches out one section pin-and-hole 15a that is provided with the latch insertion that is used for latch cylinder 16 of fore side frame end cap 4, and pin-and-hole 15a is a mounting hole, and is provided with a plurality of along tie rod 15; So that the latch of latch cylinder inserts easily; And the spacing between transmission side frame and fore side frame can not realize tension simultaneously yet, and frame tension back rigidity improves greatly, helps improving stabilization of equipment performance and rolling accuracy.
In the present embodiment, said fore side frame 3 is fixedly set on the rack rail 1 through the locking cylinder 17 that is arranged on himself, can make the release of fore side frame easily.
In the present embodiment; The said dolly 9 that shifts out is provided with clamping block 9a, and fore side frame 3 is provided with and is used for the chucking cylinder 18 that is fixedly connected with clamping block 9a so that when the roll length variations through shifting out the spacing between dolly adjustment fore side frame and the transmission side frame; After disposable the adjusting; Be fixed on the rack rail by the rack locking cylinder again, under the constant situation of roll length, during roll change, do not need moving frame more later on.
In the present embodiment, said changing rig also comprises and shifts out hydraulic cylinder 19 and traversing hydraulic cylinder 20, the said motion output that shifts out hydraulic cylinder 19 with shift out dolly 9 and be connected; The motion output of traversing hydraulic cylinder 20 is connected with traversing dolly 11, adopts hydraulic cylinder to drive, and is simple in structure; Be easy to realize that cost is lower, certainly; Adopt other power sources such as electronic cylinder, all can realize the object of the invention.
But the method that the milling train that utilizes the fast roll changing of present embodiment carries out roll change may further comprise the steps:
A lets one group of guide rail section 12a on the traversing dolly 11 dock with roll stacks guide rail 5 and form continuous guide rail with shifting out guide rail 8, on the traversing dolly 11 another organize place in advance on guide rail section 12b one the roll stacks that will change is housed the roll stacks dolly;
B control tension cylinder 14 loosens tie rod 15, and latch cylinder 16 is extracted latch out, removes the tension of frame;
C control is shifted out dolly 9 to moving away from fore side frame 3 directions, makes fore side frame end cap 4 and roll stacks dolly 6 and roll stacks 7 integral body that will change are pulled out from the window 3a of fore side frame 3, moves to fully on the traversing dolly 11 up to roll stacks dolly 6;
D controls traversing dolly 11 and moves, and the roll stacks 7 that change is removed, let the corresponding one group of guide rail section 12b of the roll stacks that will change with shift out guide rail 8 and roll stacks guide rail 5 and dock;
E control is shifted out the corresponding roll stacks dolly of roll stacks that dolly 9 promotes to change and is moved to fore side frame 3 directions, is fitted on the fore side frame 3 up to fore side frame end cap 4;
F control latch cylinder 16 inserts latch in the pin-and-hole 15a of tie rod 15,14 tensions of tension cylinder make frame be in tension, accomplish the roll change operation.
This roll-changing method is done fore side frame end cap and roll stacks as a wholely to pull out or push, and does not need moving frame, and fast and accurate for positioning when pushing; In addition, through this method roll change, be easy to realize PLC control; Realize automatic roll change, can shorten roll changing time greatly, enhance productivity.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (7)
1. but the milling train of a fast roll changing; Comprise housing assembly, roller assembly and changing rig; Said housing assembly comprises rack rail (1), is fixedly set in transmission side frame (2) and fore side frame (3) on the rack rail (1); Fore side frame (3) arranged outside has fore side frame end cap (4); Said roller assembly comprises the roll stacks guide rail (5) that is parallel to rack rail (1), can and be arranged at the roll stacks (7) on the roll stacks dolly (6) at the roll stacks dolly (6) that moves back and forth on the roll stacks guide rail (5); Roll stacks (7) is positioned between transmission side frame (2) and the fore side frame (3); Said changing rig comprises and is parallel to shifting out guide rail (8), can shifting out shifting out dolly (9), being horizontally disposed with and perpendicular to the traversing guide rail (10) that shifts out guide rail (8) and the traversing dolly (11) that can on traversing guide rail (10), move back and forth of moving back and forth on the guide rail (8) of rack rail (1); Traversing guide rail (10) is arranged at the interlude that shifts out guide rail (8); Traversing dolly (11) be provided with two groups can be respectively with shift out guide rail (8) and roll stacks guide rail (5) and dock the guide rail section (12a that forms continuous guide rail; 12b); It is characterized in that: said fore side frame (3) goes up the window (3a) that setting can let roll stacks (7) integral body shift out, and fore side frame end cap (4) is fixedly set in and shifts out dolly (9) and go up and be fitted on the fore side frame (3), fore side frame end cap (4) or shift out hook (13) is set on the dolly (9); Fix along shifting out guide rail (8) direction between hook (13) and roll stacks (7) or the roll stacks dolly (6), be slidingly matched along traversing guide rail (10) direction.
2. but the milling train of fast roll changing according to claim 1; It is characterized in that: also comprise the frame take-up device; Said frame take-up device comprises the tension cylinder (14) that is arranged on the transmission side frame (2), be connected in tension cylinder (14) the motion output tie rod (15) and be arranged at the latch cylinder (16) on the fore side frame end cap (4); Tie rod (15) passes transmission side frame (2), fore side frame (3) and fore side frame end cap (4) successively, and tie rod (15) stretches out one section pin-and-hole (15a) that is provided with the latch insertion that is used for latch cylinder (16) of fore side frame end cap (4).
3. but the milling train of fast roll changing according to claim 2 is characterized in that: a plurality of mounting holes of said pin-and-hole (15a) for axially being set up in parallel along tie rod (15).
4. but the milling train of fast roll changing according to claim 3, it is characterized in that: said fore side frame (3) is fixedly set on the rack rail (1) through the locking cylinder (17) that is arranged on himself.
But 5. the milling train of fast roll changing according to claim 4, it is characterized in that: the said dolly (9) that shifts out is provided with clamping block (9a), and fore side frame (3) is provided with and is used for the chucking cylinder (18) that is fixedly connected with clamping block (9a).
6. but according to the milling train of any described fast roll changing of claim 1-5; It is characterized in that: said changing rig also comprises and shifts out hydraulic cylinder (19) and traversing hydraulic cylinder (20); The said motion output that shifts out hydraulic cylinder (19) with shift out dolly (9) and be connected, the motion output of traversing hydraulic cylinder (20) is connected with traversing dolly (11).
7. but the method that the milling train that utilizes any described fast roll changing of claim 1-6 carries out roll change is characterized in that: may further comprise the steps:
A) let the one group of guide rail section (12a) on the traversing dolly (11) dock and form continuous guide rail with shifting out guide rail (8) and roll stacks guide rail (5), on another group guide rail section (12b) on the traversing dolly (11), place in advance one the roll stacks that will change is housed the roll stacks dolly;
B) control tension cylinder (14) loosens tie rod (15), and latch cylinder (16) is extracted latch out, removes the tension of frame;
C) control is shifted out dolly (9) to moving away from fore side frame (3) direction; The roll stacks (7) that makes fore side frame end cap (4) and roll stacks dolly (6) and will change is whole pulls out from the window (3a) of fore side frame (3), moves to fully on the traversing dolly (11) up to roll stacks dolly (6);
D) control traversing dolly (11) and move, the roll stacks (7) that change is removed, let the corresponding one group of guide rail section (12b) of the roll stacks that will change with shift out guide rail (8) and roll stacks guide rail (5) docks;
E) control is shifted out the corresponding roll stacks dolly of roll stacks that dolly (9) promotes to change and is moved to fore side frame (3) direction, is fitted on the fore side frame (3) up to fore side frame end cap (4);
F) control latch cylinder (16) inserts latch in the pin-and-hole (15a) of tie rod (15), and tension cylinder (14) tension makes frame be in tension, accomplishes the roll change operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110025614A CN102172632B (en) | 2011-01-24 | 2011-01-24 | Rolling mill capable of rapidly replacing roller and roller replacing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110025614A CN102172632B (en) | 2011-01-24 | 2011-01-24 | Rolling mill capable of rapidly replacing roller and roller replacing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102172632A CN102172632A (en) | 2011-09-07 |
| CN102172632B true CN102172632B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110025614A Active CN102172632B (en) | 2011-01-24 | 2011-01-24 | Rolling mill capable of rapidly replacing roller and roller replacing method thereof |
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| CN (1) | CN102172632B (en) |
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| CN102363156A (en) * | 2011-09-21 | 2012-02-29 | 天津市中重科技工程有限公司 | Compact chuck type universal mill |
| CN102581009B (en) * | 2012-02-29 | 2014-03-12 | 扬州冶金机械有限公司 | Cold rolling mill |
| CN102814334B (en) * | 2012-08-30 | 2014-08-06 | 太原重工股份有限公司 | Roll change system of sizing mill |
| CN103272892B (en) * | 2013-06-03 | 2015-06-17 | 中冶赛迪工程技术股份有限公司 | Straightener capable of changing rolls quickly |
| CN103698143B (en) * | 2013-12-02 | 2016-01-20 | 上海卫星装备研究所 | Vacuum tank guide rail and tank dolly interface arrangement and method of operating thereof outward |
| CN103736738A (en) * | 2014-01-22 | 2014-04-23 | 江苏亨特宏业重工有限公司 | Roll changing device for cold rolling mill working rolls |
| CN104646429B (en) * | 2015-01-23 | 2016-09-28 | 合肥市百胜科技发展股份有限公司 | Changing rig |
| DE102015002887B4 (en) * | 2015-03-09 | 2017-05-11 | Sms Group Gmbh | Straightening machine and method for changing straightening roller elements |
| CN104907361A (en) * | 2015-06-17 | 2015-09-16 | 太原重工股份有限公司 | Straightening machine and roller replacing device thereof |
| CN106555039B (en) * | 2015-09-30 | 2018-07-27 | 上海梅山钢铁股份有限公司 | A kind of suspension type roller installation more changing device |
| CN108246806B (en) * | 2017-12-29 | 2023-10-03 | 浙江久立特材科技股份有限公司 | Quick die changing device for hydraulic power stainless steel pipe continuous production line |
| CN108501453B (en) * | 2018-04-09 | 2020-10-02 | 广东肇庆西江机械制造有限公司 | Roll changing method |
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| CN111633056B (en) * | 2019-05-08 | 2024-05-07 | 襄阳振本传动设备有限公司 | Straightener capable of automatically changing various roller boxes |
| CN110722005B (en) * | 2019-09-26 | 2021-04-30 | 首钢京唐钢铁联合有限责任公司 | Finishing mill roll changing method |
| CN112296092A (en) * | 2020-10-19 | 2021-02-02 | 广东恒华重工有限公司 | Novel quick change device of short stress rolling mill |
| CN112404137B (en) * | 2020-11-18 | 2024-06-04 | 中冶赛迪工程技术股份有限公司 | Automatic roll changing device and method for continuous tube mill |
| CN112756429B (en) * | 2020-11-30 | 2024-06-25 | 中冶华天工程技术有限公司 | Combined rack of movable straightener with operation side rack |
| CN113458147B (en) * | 2021-07-28 | 2023-03-14 | 重庆钢铁股份有限公司 | Semi-automatic roll changing control method and device |
| CN115847353B (en) * | 2022-11-09 | 2023-06-09 | 东莞海裕百特智能装备有限公司 | Quick roll changing device and method for roll squeezer |
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| CN102172632A (en) | 2011-09-07 |
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