CN102632077A - Full pre-stress high-rigidity universal mill - Google Patents
Full pre-stress high-rigidity universal mill Download PDFInfo
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- CN102632077A CN102632077A CN2012101356141A CN201210135614A CN102632077A CN 102632077 A CN102632077 A CN 102632077A CN 2012101356141 A CN2012101356141 A CN 2012101356141A CN 201210135614 A CN201210135614 A CN 201210135614A CN 102632077 A CN102632077 A CN 102632077A
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Abstract
The invention discloses a full pre-stress high-rigidity universal mill, which comprises a rack assembly, a roller assembly and a roller gap adjusting hydraulic cylinder assembly, wherein the rack assembly comprises two racks arranged side by side; each rack comprises a vertical draw bar, an upper beam, a vertical roller rack and a lower beam; each vertical draw bar is provided with a vertical pre-stress mechanism used for applying vertical pre-stress; a horizontal draw bar used for connecting the two racks is arranged between the two racks; the horizontal draw bar is sheathed with a spacing beam used for limiting the distance between the two racks; one end of the horizontal draw bar is provided with a bolt hole and a bolt; the other end of the horizontal draw bar is provided with a horizontal pre-stress mechanism; the roller assembly comprises two horizontal rollers and two vertical rollers, wherein the two horizontal rollers are arranged between the upper beam and the lower beam and can move up and down, and the two vertical rollers are arranged between the two vertical roller racks and can move left and right; and the roller gap adjusting hydraulic cylinder assembly comprises a horizontal roller gap adjusting cylinder and a vertical roller gap adjusting cylinder; the horizontal roller gap adjusting cylinder is arranged on the upper beam and the lower beam; and the vertical roller gap adjusting cylinder is arranged on the vertical roller racks.
Description
Technical field
The present invention relates to a kind of milling train, concrete is the high rigidity universal mill of a kind of full prestressing.
Background technology
Universal mill is the main equipment that carries out shaped steel and Rail Production; Universal mill mainly comprises frame and roll stacks; Wherein roll stacks is made up of an a pair of horizontal roller and an opposite roller; Be characterized in: in same vertical plane, each roll can slide in frame, along up and down and left and right directions simultaneously rolled piece is rolled.The frame of universal mill needs high rigidity requirement, and is guaranteeing the rolling accuracy of product, during especially for rolling high speed heavy rail, strict more to the requirement of housing rigidity.In addition, in the operation of rolling of universal mill, roll wear is very fast, needs often to change roll stacks, and the time length of roll change operation has determined the production efficiency of universal mill to a great extent.
In the prior art, in order to reach the roll change purpose, several kinds of modes below the frame of milling train has adopted:
The one, UD type universal mill, this milling train is divided into upper, middle, and lower part with whole frame, is connected by four vertical pull bars, and advantage is that the rigidity of frame vertical direction is high; But, make that the rigidity of frame horizontal direction is lower, and cause when roll change because mid portion is a closed frame; At first need vertical pull bar be accessed or show, from top to bottom the upper, middle, and lower part frame hung away gradually through crane again, ability roll change at last; Roll changing time is long, operating difficulties, and can not realize automatic roll change;
The 2nd, the CCS universal mill, the mode that has adopted fore side to separate with the transmission side frame, the two-chip computer frame is connected by four girts; Frame horizontal direction rigidity is higher, realize roll change through opening the two-chip computer frame, but the two-chip computer frame is closed type integrated frame; The rigidity of frame vertical direction is lower, and heavy section steel universal rolling mill size is bigger, makes the frame casting processing difficult; Manufacturing cost is high, and is difficult to transportation.
More than two types universal mill all on the books in " modern beam-and-rail production technology " that metallurgical industry publishing house publishes.
In view of this; The present invention is intended to explore the high rigidity universal mill of a kind of full prestressing; The high rigidity universal mill of this full prestressing; Not only can realize changing fast roll, and can also guarantee in the horizontal direction with on the vertical direction enough rigidity is arranged, and also have the convenient and advantage of low manufacturing cost of processing casting.
Summary of the invention
The technical problem that the present invention will solve is to propose the high rigidity universal mill of a kind of full prestressing; The high rigidity universal mill of this full prestressing not only has the convenient and advantage of low manufacturing cost of processing casting; And can also realize changing fast roll, and guarantee in the horizontal direction with on the vertical direction enough rigidity is arranged all.
Realize above-mentioned technical purpose, the high rigidity universal mill of full prestressing of the present invention comprises housing assembly, roller assembly and roll gap adjusting hydraulic pressure cylinder assembly;
Said housing assembly comprises two frames that are arranged side by side; Every frame includes vertical pull bar and the entablature, edger roll frame and the sill that adopt vertical pull bar to be connected; Said edger roll chord position is between entablature and sill, and said vertical pull bar is provided with the vertical pretightning force mechanism that is used to apply vertical pretightning force; Also be provided with the girt that is used to connect two frames between the said two-chip computer frame; Said girt extends through the through hole that is arranged on the vertical pull bar; One end of said girt is provided with pin hole and latch, and the other end is provided with the horizontal pretightning force mechanism that is used to apply horizontal pretightning force;
But said roller assembly comprises and being installed between entablature and the sill and two horizontal roller moving up and down and be installed between the two edger roll framves and two edger rolls of move left and right;
Said roll gap regulator solution cylinder pressure comprises the horizontal roll gap adjusting cylinder and the edger roll roll gap adjusting cylinder that is used to regulate two edger roll roll gap that is used to regulate two horizontal roller roll gap; Said horizontal roll gap is regulated cylinder and is installed on said entablature and the sill, and said edger roll roll gap is regulated cylinder and is installed on the said edger roll frame.
Further, the end that said girt is provided with pin hole is flat, and the said through hole that is arranged on the vertical pull bar is an elliptical aperture;
Further, be set with adjustable length on the said girt and be used to limit the spacing beam of two-chip computer frame distance;
Further, said girt is provided with at least 1 pin hole;
Further, said vertical pretightning force mechanism is the hydraulic nut that is arranged on the said vertical pull bar;
Further, said horizontal pretightning force mechanism is the pretension hydraulic cylinder that is arranged on the said girt;
Further, the bottom of said edger roll frame is provided with the support level that is used for the frames assembly.
Beneficial effect of the present invention is:
The high rigidity universal mill of full prestressing of the present invention is set to two-chip computer frame side by side through housing assembly, and in use, the frame that is positioned at girt pin hole one side is the fore side frame, and the frame that is positioned at pretension hydraulic cylinder one side is the transmission side frame; Adopt girt to connect between the two-chip computer frame, when milling train was in rolling duty, latch inserted in the pin hole, and the pretension hydraulic cylinder is strained girt fast, with fore side and transmission side rack locking, and applied the prestressing force of horizontal direction; When being in the roll change state, the quick relaxation level pull bar of pretension hydraulic cylinder, latch can be extracted out from pin hole fast; At this moment, fore side can be separated through modes such as oil cylinder draw back with the transmission side frame fast, and with traversing pulling out of roller assembly while; The roll of being convenient to more renew; Realize the quick replacing of roller assembly,, also easily be automated owing to there is not crane to participate in roll change;
Be set to adopt three parts of entablature, edger roll frame and sill that vertical pull bar connects through frame, can effectively reduce the casting difficulty and casting cost of each part frame, manufacturing cost is cheaper;
Adopt girt to apply pretightning force respectively in the horizontal direction with on the vertical direction, can effectively increase horizontal rigidity and vertical stiffness, guarantee that milling train all has enough rigidity in the horizontal direction with on the vertical direction with vertical pull bar.
Description of drawings
Fig. 1 is the structural representation of the high rigidity universal mill of full prestressing of the present invention embodiment;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the housing assembly structural representation;
Fig. 4 is the B-B cutaway view of Fig. 3;
Fig. 5 is the girt structural representation;
Fig. 6 is the stereogram of the high rigidity universal mill of present embodiment full prestressing.
Description of reference numerals:
The vertical pull bar of 1-; The 2-entablature; 3-edger roll frame; The 4-sill; The 5-hydraulic nut; The 6-girt; The 7-through hole; 8-spacing beam; The 9-pin hole; The 10-latch; 11-pretension hydraulic cylinder; The 12-horizontal roller; The 13-edger roll; The horizontal roll gap of 14-is regulated cylinder; 15-edger roll roll gap is regulated cylinder; The 16-support level.
The specific embodiment
Elaborate below in conjunction with the accompanying drawing specific embodiments of the invention.
As shown in Figure 1, be the structural representation of the high rigidity universal mill of full prestressing of the present invention embodiment; Fig. 2 is the A-A cutaway view of Fig. 1.The high rigidity universal mill of the full prestressing of present embodiment comprises housing assembly, roller assembly and roll gap adjusting hydraulic pressure cylinder assembly.
Like Fig. 3 and shown in Figure 4; Housing assembly comprises two frames that are arranged side by side; Entablature 2, edger roll frame 3 and sill 4 that every frame includes vertical pull bar 1 and adopts vertical pull bar 1 to be connected, edger roll frame 3 are between entablature 2 and sill 4, and vertically pull bar 1 is provided with the vertical pretightning force mechanism that is used to apply vertical pretightning force; Every frame of present embodiment is provided with the enough vertical stiffness of two ends assurance that two vertical pull bar 1, two vertical pull bars 1 lay respectively at frame.Preferably, the vertical pretightning force mechanism of present embodiment is the hydraulic nut 5 that is arranged on the vertical pull bar 1, and certainly vertical pretightning force mechanism also can adopt other versions to realize frame is applied vertical pretightning force, as adopting hydraulic cylinder etc., no longer tired stating.The vertical pull bar 1 of present embodiment at one end is provided with hydraulic nut 5; The other end is fixed through clamp nut; Concrete, the hydraulic nut 5 of present embodiment is set in place on the vertical pull bar 1 of entablature 2 one sides, adopts hydraulic nut 5 can apply bigger vertical pretightning force.
Also be provided with the girt 6 that is used to connect two frames between the two-chip computer frame; Girt 6 extends through the through hole 7 that is arranged on the vertical pull bar; Be set with adjustable length on the girt 6 and be used to limit the spacing beam 8 of two-chip computer frame distance; One end of girt 6 is provided with pin hole 9 and latch 10, and the other end is provided with the horizontal pretightning force mechanism that is used to apply horizontal pretightning force.Present embodiment is provided with four girts 6 altogether, and per two girts 6 are one group and are installed on the corresponding vertical pull bar 1 of two frames, through girt 6 is set, can guarantee horizontal rigidity enough between two frames.Preferably; The horizontal pretightning force mechanism of present embodiment is the pretension hydraulic cylinder 11 that is arranged on the girt 6; One end of girt 6 is provided with and is used for the external screw thread that links to each other with the piston rod of pretension hydraulic cylinder 11, and certainly, horizontal pretightning force mechanism also can adopt other structures that milling train is applied horizontal pretightning force; Like hydraulic nut etc., no longer tired stating.
But roller assembly comprises and being installed between entablature 2 and the sill 4 and two horizontal roller 12 moving up and down and be installed between the two edger roll framves 3 and two edger rolls 13 of move left and right; Two horizontal roller 12 are and are installed in parallel in up and down between entablature 2 and the sill 4; The roll gap between the scalable horizontal roller 12 that moves up and down through horizontal roller 12; Two edger rolls 13 are installed between the edger roll frame 3 abreast, can adjust the roll gap between the edger roll 13 through the move left and right of edger roll.
Roll gap regulator solution cylinder pressure comprises the horizontal roll gap adjusting cylinder 14 and the edger roll roll gap adjusting cylinder 15 that is used to regulate two edger rolls, 13 roll gap that is used to regulate two horizontal roller, 12 roll gap; Horizontal roll gap is regulated cylinder 14 and is installed on entablature 2 and the sill 4; The horizontal roll gap of present embodiment is regulated cylinder 14 and is provided with four; And be installed in respectively on entablature 2 and the sill 4, the piston rod that horizontal roll gap is regulated cylinder 14 links to each other with corresponding horizontal roller 12, is used to drive horizontal roller 12 and moves up and down.The edger roll roll gap is regulated cylinder 15 and is installed on the edger roll frame 3, and the edger roll roll gap of present embodiment is regulated cylinder 15 and is set to two, and the piston rod that the edger roll roll gap is regulated cylinder 15 links to each other with corresponding edger roll 13, is used to drive edger roll 13 move left and right.In addition, horizontal roll gap is regulated cylinder 14 and edger roll roll gap adjusting cylinder 15 also can be used for pretension horizontal roller 12 and edger roll 13.
The high rigidity universal mill of the full prestressing of present embodiment; Be set to two-chip computer frame side by side through housing assembly; In use, the frame that is positioned at girt 6 pin holes 9 one sides is the fore side frame, and the frame that is positioned at pretension hydraulic cylinder 11 1 sides is the transmission side frame; Adopt girt 6 to connect between the two-chip computer frame, when milling train was in rolling duty, latch 10 inserted in the pin holes 9, and pretension hydraulic cylinder 11 is tension girts 6 fast, with fore side and transmission side rack locking, and applied the prestressing force of horizontal direction; When being in the roll change state, pretension hydraulic cylinder 11 quick relaxation level pull bars, latch 10 can be extracted out from pin hole 9 fast; At this moment, fore side can be separated through modes such as oil cylinder draw back with the transmission side frame fast, and with traversing pulling out of roller assembly while; The roll of being convenient to more renew; Realize the quick replacing of roller assembly,, also easily be automated owing to there is not crane to participate in roll change.
Be set to adopt three parts of entablature 2, edger roll frame 3 and sill 4 that vertical pull bar 1 connects through frame, can effectively reduce the casting difficulty and casting cost of each part frame, reduce manufacturing cost.
Adopt girt 6 to apply pretightning force respectively in the horizontal direction with on the vertical direction, can effectively increase horizontal rigidity and vertical stiffness, guarantee that milling train all has enough rigidity in the horizontal direction with on the vertical direction with vertical pull bar 1.
Further, the end that girt 6 is provided with pin hole 9 is flat, and the through hole 7 that is arranged on the vertical pull bar 1 is elliptical aperture.Adopt the girt 6 of this structure can prevent that girt 6 from rolling in through hole 7, and when roll change, extraction that can the handled easily side frame.
Further, said girt 6 is provided with at least 1 pin hole 9, and the girt 6 of present embodiment is provided with 2 pin holes 9, and under different spacing beam 8 length, latch 10 can cooperate with corresponding pin hole 9.
Further, the bottom of edger roll frame 3 is provided with the support level 16 that is used for the frames assembly, through support level 16 is set, not only is convenient to support milling train, and can reduces the milling train center, improves rolling stability.
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. the high rigidity universal mill of full prestressing comprises housing assembly, roller assembly and roll gap adjusting hydraulic pressure cylinder assembly, it is characterized in that:
Said housing assembly comprises two frames that are arranged side by side; Every frame includes vertical pull bar and the entablature, edger roll frame, the sill that adopt vertical pull bar to be connected; Said edger roll chord position is between entablature and sill, and said vertical pull bar is provided with the vertical pretightning force mechanism that is used to apply vertical pretightning force; Also be provided with the girt that is used to connect two frames between the said two-chip computer frame; Said girt extends through the through hole that is arranged on the vertical pull bar; One end of said girt is provided with pin hole and latch, and the other end is provided with the horizontal pretightning force mechanism that is used to apply horizontal pretightning force;
But said roller assembly comprises and being installed between entablature and the sill and two horizontal roller moving up and down and be installed between the two edger roll framves and two edger rolls of move left and right;
Said roll gap regulator solution cylinder pressure comprises the horizontal roll gap adjusting cylinder and the edger roll roll gap adjusting cylinder that is used to regulate two edger roll roll gap that is used to regulate two horizontal roller roll gap; Said horizontal roll gap is regulated cylinder and is installed on said entablature and the sill, and said edger roll roll gap is regulated cylinder and is installed on the said edger roll frame.
2. the high rigidity universal mill of full prestressing according to claim 1 is characterized in that: the end that said girt is provided with pin hole is flat, and the said through hole that is arranged on the vertical pull bar is an elliptical aperture.
3. the high rigidity universal mill of full prestressing according to claim 2 is characterized in that: be set with adjustable length on the said girt and be used to limit the spacing beam of two-chip computer frame distance.
4. according to the high rigidity universal mill of each described full prestressing of claim 1-3, it is characterized in that: said girt is provided with at least 1 pin hole.
5. according to the high rigidity universal mill of each described full prestressing of claim 1-3, it is characterized in that: said vertical pretightning force mechanism is the hydraulic nut that is arranged on the said vertical pull bar.
6. according to the high rigidity universal mill of each described full prestressing of claim 1-3, it is characterized in that: said horizontal pretightning force mechanism is the pretension hydraulic cylinder that is arranged on the said girt.
7. according to the high rigidity universal mill of each described full prestressing of claim 1-3, it is characterized in that: the bottom of said edger roll frame is provided with the support level that is used for the frames assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101356141A CN102632077A (en) | 2012-05-04 | 2012-05-04 | Full pre-stress high-rigidity universal mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101356141A CN102632077A (en) | 2012-05-04 | 2012-05-04 | Full pre-stress high-rigidity universal mill |
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| CN102632077A true CN102632077A (en) | 2012-08-15 |
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| CN2012101356141A Pending CN102632077A (en) | 2012-05-04 | 2012-05-04 | Full pre-stress high-rigidity universal mill |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769420A (en) * | 2014-02-18 | 2014-05-07 | 江苏鸿业重工有限公司 | Vertical roll mounting bracket for two-high universal rolling mill |
| CN105598174A (en) * | 2016-03-23 | 2016-05-25 | 上海攀枝花机械制造有限公司 | Cold pilger mill with prestressed screw |
| CN109158425A (en) * | 2018-09-27 | 2019-01-08 | 天津市中重科技工程有限公司 | Universal mill transmission side vertical roll entablature lifting device |
| CN106734219B (en) * | 2016-12-30 | 2019-04-05 | 天津市中重科技工程有限公司 | A kind of rack packaged type milling train draw lever locking device |
| CN113270022A (en) * | 2021-05-24 | 2021-08-17 | 攀钢集团攀枝花钢钒有限公司 | Steel rail all-purpose rolling metal flow plane demonstration control method |
| CN113327502A (en) * | 2021-05-24 | 2021-08-31 | 攀钢集团攀枝花钢钒有限公司 | Adjusting mechanism of metal flow demonstration die of steel rail edging mill |
| CN113362693A (en) * | 2021-05-24 | 2021-09-07 | 攀钢集团攀枝花钢钒有限公司 | Demonstration control method for metal flow plane of steel rail edging mill |
| CN114289517A (en) * | 2022-01-05 | 2022-04-08 | 山东钢铁股份有限公司 | Rotary mounting assembly and prestressed rod with same |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769420A (en) * | 2014-02-18 | 2014-05-07 | 江苏鸿业重工有限公司 | Vertical roll mounting bracket for two-high universal rolling mill |
| CN105598174A (en) * | 2016-03-23 | 2016-05-25 | 上海攀枝花机械制造有限公司 | Cold pilger mill with prestressed screw |
| CN106734219B (en) * | 2016-12-30 | 2019-04-05 | 天津市中重科技工程有限公司 | A kind of rack packaged type milling train draw lever locking device |
| CN109158425A (en) * | 2018-09-27 | 2019-01-08 | 天津市中重科技工程有限公司 | Universal mill transmission side vertical roll entablature lifting device |
| CN109158425B (en) * | 2018-09-27 | 2024-04-05 | 中重科技(天津)股份有限公司 | Lifting device for cross beam of vertical roller at transmission side of universal mill |
| CN113270022A (en) * | 2021-05-24 | 2021-08-17 | 攀钢集团攀枝花钢钒有限公司 | Steel rail all-purpose rolling metal flow plane demonstration control method |
| CN113327502A (en) * | 2021-05-24 | 2021-08-31 | 攀钢集团攀枝花钢钒有限公司 | Adjusting mechanism of metal flow demonstration die of steel rail edging mill |
| CN113362693A (en) * | 2021-05-24 | 2021-09-07 | 攀钢集团攀枝花钢钒有限公司 | Demonstration control method for metal flow plane of steel rail edging mill |
| CN113362693B (en) * | 2021-05-24 | 2022-03-22 | 攀钢集团攀枝花钢钒有限公司 | Demonstration control method for metal flow plane of steel rail edging mill |
| CN113270022B (en) * | 2021-05-24 | 2022-03-22 | 攀钢集团攀枝花钢钒有限公司 | Steel rail all-purpose rolling metal flow plane demonstration control method |
| CN113327502B (en) * | 2021-05-24 | 2022-07-19 | 攀钢集团攀枝花钢钒有限公司 | Adjusting mechanism of metal flow demonstration die of steel rail edging mill |
| CN114289517A (en) * | 2022-01-05 | 2022-04-08 | 山东钢铁股份有限公司 | Rotary mounting assembly and prestressed rod with same |
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Application publication date: 20120815 |