CN102553911A - Full-hydraulic roll gap adjusting short-stress-path rolling mill - Google Patents
Full-hydraulic roll gap adjusting short-stress-path rolling mill Download PDFInfo
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- CN102553911A CN102553911A CN201210027212XA CN201210027212A CN102553911A CN 102553911 A CN102553911 A CN 102553911A CN 201210027212X A CN201210027212X A CN 201210027212XA CN 201210027212 A CN201210027212 A CN 201210027212A CN 102553911 A CN102553911 A CN 102553911A
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Abstract
The invention discloses a full-hydraulic roll gap adjusting short-stress-path rolling mill, which comprises a frame, a roll system, a roll gap adjusting device and bearing blocks mounted on the frame. Two ends of the roll system are sleeved in the bearing blocks, the roll system comprises an upper roll and a lower roll, the bearing blocks include an upper bearing block and a lower bearing block which correspond to the upper roll and the lower roll respectively, the roll gap adjusting device comprises cylinders and pull rods fixedly supported in the frame, the upper bearing block and the lower bearing block are sleeved on the pull rods and are axially in movable fit with the pull rods, the cylinders are fixedly connected with the bearing blocks, pistons matched with the cylinders are arranged on the pull rods, and the cylinders and the pistons form a hydraulic cylinder structure. The full-hydraulic roll gap adjusting short-stress-path rolling mill uses hydraulic pressure for adjusting roll gaps, is higher in roll gap adjusting precision, rapider in response, capable of providing higher rolling pressure and easy in implementing automation.
Description
Technical field
The present invention relates to a kind of milling train, concrete is that a kind of all-hydraulic roll gap is regulated short stress path rolling mill.
Background technology
It is shorter that short stress path rolling mill is compared its line of tension of memorial archway milling train of same specification, thereby its strain is little, mill stiffness is high, has obtained extensive use in the production of online bar.But also there is following defective in existing short stress path rolling mill:
1) adopt the mode of nut screw mandrel transmission to regulate roll gap, degree of regulation is poor, and the rolled products precision is low;
2) adopt the manual adjustment roll gap, efficient is low;
3) when steel rolling, be difficult to regulate automatically according to the quick response of rolling operating mode realization roll gap, automaticity is low;
4) existing roll gap adjusting nut also is difficult to bear big draught pressure, and the life-span is short, and often specification is less to make existing short stress path rolling mill, in big products rolling, can't substitute large-scale memorial archway formula milling train.
Like application number is that the Chinese patent of CN 201110178169.2 discloses a kind of short stress path rolling mill; The roll-separating mechanism of this short stress path rolling mill still adopts the mode of threaded screw rod to adjust roll gap, does not overcome roll gap adjustment low precision, efficient is low and automaticity is low defective.
Given this; The present invention is intended to explore a kind of all-hydraulic roll gap and regulates short stress path rolling mill; This all-hydraulic roll gap is regulated short stress path rolling mill and roll gap is regulated with downward hydraulic coupling through adopting upwards; The roll gap degree of regulation is higher, speed responsive is faster, and bigger draught pressure can be provided and easily be automated.
Summary of the invention
The technical problem that the present invention will solve is to propose a kind of all-hydraulic roll gap to regulate short stress path rolling mill; It is not only simple in structure that this all-hydraulic roll gap is regulated short stress path rolling mill, and have that the roll gap degree of regulation is high, speed responsive is fast, easily be automated control and the advantage of bigger draught pressure can be provided.
Realize above-mentioned technical purpose; All-hydraulic roll gap of the present invention is regulated short stress path rolling mill, comprises frame, roller system, roll gap adjusting device and is installed in the bearing block on the said frame, and the two ends that said roller is all are sleeved in the said bearing block; Said roller is to comprise topping roll and bottom roll; Said bearing block comprises top chock and the step with said topping roll and the corresponding setting of bottom roll, and said roll gap adjusting device comprises cylinder body and the pull bar that is fixedly supported in the said frame, and said top chock and step are sleeved on the said pull bar; And said top chock and step and said pull bar movable cooperation on axial direction; Said cylinder body is sleeved on the said pull bar, and said pull bar is provided with the piston that cooperates with said cylinder body, said cylinder body and piston composition hydraulic cylinder structure.
Further, link to each other through two pull bars that are parallel to each other between said top chock and the step;
Further, be provided with the cushion block that is positioned on the said bearing block between said cylinder body and the said bearing block;
Further, the contact-making surface of said cushion block and said cylinder body is a sphere.
Beneficial effect of the present invention is:
All-hydraulic roll gap of the present invention is regulated short stress path rolling mill and is connected top chock and step through pull bar is set, and through cylinder body and the piston that cooperatively interacts is set on bearing block and pull bar, can realize adopting hydraulic coupling to top chock to pressing down and to step pressure upwards; Can realize adopting hydraulic coupling to regulate roll gap; Degree of regulation is higher, speed responsive is faster, and bigger draught pressure can be provided and easily be automated, in addition; Also can be easily through changing piston stroke and cylinder body size; Be easy to realize big draught pressure, wide roll gap adjustable range realizes the rolling of wideer range of product size;
The stressing conditions that all-hydraulic roll gap of the present invention is regulated short stress path rolling mill is following: the hydraulic coupling that is positioned at the hydraulic cylinder generation on the top chock acts on top chock and the pull bar simultaneously; The hydraulic coupling that is positioned at the hydraulic cylinder generation on the step acts on step and the pull bar simultaneously; Making that pull bar is stressed reaches balanced, and top chock and step receive also that simultaneously the reaction force of workpiece reaches stress equalization, and all-hydraulic roll gap adjusting short stress path rolling mill promptly of the present invention has been realized the transfer mode of the power of short-stress path; Its stressed internal force that finally becomes between bearing block and the pull bar; Make frame not bear big draught pressure, the physical dimension of frame can correspondingly reduce, weight saving; The characteristics that line of tension through utilizing the short-stress path principle is short, rigidity is high; Make rolling mill structure compact, alleviate milling train weight, reduce cost.
Description of drawings
Fig. 1 regulates the structural representation of short stress path rolling mill embodiment for the all-hydraulic roll gap of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the stereogram that the all-hydraulic roll gap of present embodiment is regulated short stress path rolling mill.
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 all-hydraulic roll gap adjusting of the present invention short stress path rolling mill embodiment; Fig. 2 is the vertical view of Fig. 1; Fig. 3 is the A-A cutaway view of Fig. 1; Fig. 4 is the stereogram that the all-hydraulic roll gap of present embodiment is regulated short stress path rolling mill.
The all-hydraulic roll gap of present embodiment is regulated short stress path rolling mill; Comprise frame 1, roller system, roll gap adjusting device and be installed in the bearing block on the said frame, the two ends that said roller is all are sleeved in the said bearing block, and said roller is to comprise topping roll 2 and bottom roll 3; Said bearing block comprises the top chock 4 and step 5 with said topping roll 2 and bottom roll 3 corresponding settings; Said roll gap adjusting device comprises cylinder body 6 and the pull bar 7 that is fixedly supported in the said frame 1, and said top chock 4 all is sleeved on the said pull bar 7 with step 5, and said top chock 4 and step 5 and said pull bar 7 movable cooperation on axial direction; Said cylinder body 6 is positioned on the described bearing block; And be sleeved on the pull bar 7, said pull bar 7 is provided with the piston 8 that cooperates with said cylinder body 6, and cylinder body 6 is formed hydraulic cylinder structure with piston 8.
As shown in the figure; Topping roll 2 is supported on the frame 1 by two top chocks 3 and step 4 respectively with bottom roll 3; And top chock 3 can slide up and down on frame 1 with step 4, and the two ends of each bearing block are respectively equipped with the through hole that is used to install pull bar 7, and two pull bars 7 extend through the through hole that is positioned on top chock 4 and the step 5 respectively top chock 4 and step 5 are coupled together; Promptly; Link to each other through two pull bars that are parallel to each other 7 between said top chock 4 and the step 5, adopt two pull bars to connect top chock 4 and can make top chock 4 and step 5 stress equalizations with step 5, motion steadily.
The all-hydraulic roll gap of present embodiment is regulated short stress path rolling mill and is connected top chock 4 and step 5 through pull bar 7 is set; And through the cylinder body 6 and piston 8 that cooperatively interacts is set on bearing block and pull bar 7; Can realize adopting hydraulic coupling to top chock 4 to pressing down and step 5 upwards being pressed, can realize adopting hydraulic coupling to regulate roll gap.
The stressing conditions of the all-hydraulic roll gap adjusting short stress path rolling mill of present embodiment is following: the hydraulic coupling that is positioned at the hydraulic cylinder generation on the top chock 4 acts on top chock 4 and the pull bar 7 simultaneously; The hydraulic coupling that is positioned at the hydraulic cylinder generation on the step 5 acts on step 5 and the pull bar 7 simultaneously; Making that pull bar 7 is stressed reaches balanced, and top chock 4 also receives simultaneously that with step 5 reaction force of workpiece reaches stress equalization, and promptly the all-hydraulic roll gap of present embodiment is regulated the transfer mode that short stress path rolling mill has been realized the power of short-stress path; Its stressed internal force that finally becomes between bearing block and the pull bar 7; Make frame 1 not bear big draught pressure, the physical dimension of frame 1 can correspondingly reduce, weight saving; The characteristics that line of tension through utilizing the short-stress path principle is short, rigidity is high; Make rolling mill structure compact, alleviate milling train weight, reduce cost.
The all-hydraulic roll gap of present embodiment regulate short stress path rolling mill simple in structure, reliable, in light weight, be easy to make, adopt hydraulic pressure to depress and press to exert pressure and realize that roll gap regulates, compare existing nut screw mandrel mode; Degree of regulation is high, and response is fast, cooperates sensors such as corresponding displacement, pressure again; And AGC control system etc.; Can realize the dynamic adjustments of roll gap, automatic control etc., be easy to improve the automaticity of milling train, alleviate workman's the amount of labour; And the milling train steel-fastening in the minimizing operation of rolling, improve rolling efficiency; Also can pass through to change cylinder diameter and pull bar diameter, and the stroke of piston etc., being easy to realize big draught pressure, wide roll gap adjustable range realizes the rolling of wideer range of product size.
Further, be provided with cushion block 9 between said cylinder body 6 and the said bearing block, prevent rigid collision between cylinder body 6 and top chock 4 and the step 5.Preferably, said cushion block 9 is a sphere with the contact-making surface of said cylinder body 6, so that under draught pressure, alleviate or avoid the damage to hydraulic cylinder 6 or bearing block.
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 (4)
1. an all-hydraulic roll gap is regulated short stress path rolling mill; Comprise frame, roller system, roll gap adjusting device and be installed in the bearing block on the said frame; It is characterized in that: the two ends of said roller system all are sleeved in the said bearing block, and said roller system comprises that topping roll and bottom roll, said bearing block comprise top chock and the step with said topping roll and the corresponding setting of bottom roll; Said roll gap adjusting device comprises cylinder body and the pull bar that is fixedly supported in the said frame; Said top chock and step are sleeved on the said pull bar, and said top chock and step and said pull bar movable cooperation on axial direction, and said cylinder body is sleeved on the said pull bar; And said pull bar is provided with the piston that cooperates with said cylinder body, and said cylinder body and piston are formed hydraulic cylinder structure.
2. all-hydraulic roll gap according to claim 1 is regulated short stress path rolling mill, it is characterized in that: link to each other through two pull bars that are parallel to each other between said top chock and the step.
3. all-hydraulic roll gap according to claim 1 is regulated short stress path rolling mill, it is characterized in that: be provided with the cushion block that is positioned on the said bearing block between said cylinder body and the said bearing block.
4. all-hydraulic roll gap according to claim 3 is regulated short stress path rolling mill, and it is characterized in that: the contact-making surface of said cushion block and said cylinder body is a sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210027212XA CN102553911A (en) | 2012-02-08 | 2012-02-08 | Full-hydraulic roll gap adjusting short-stress-path rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210027212XA CN102553911A (en) | 2012-02-08 | 2012-02-08 | Full-hydraulic roll gap adjusting short-stress-path rolling mill |
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| CN102553911A true CN102553911A (en) | 2012-07-11 |
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| CN201210027212XA Pending CN102553911A (en) | 2012-02-08 | 2012-02-08 | Full-hydraulic roll gap adjusting short-stress-path rolling mill |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764767A (en) * | 2012-08-21 | 2012-11-07 | 中冶赛迪工程技术股份有限公司 | Roller bearing block structure for rolling mill |
| CN104043656A (en) * | 2013-03-14 | 2014-09-17 | 宝山钢铁股份有限公司 | Method for testing hydraulic state of dynamic roll gaps through static pressure maintaining |
| CN105032934A (en) * | 2015-07-24 | 2015-11-11 | 东北大学 | Irregular pipe cold-rolling forming device |
| CN105436207A (en) * | 2015-11-24 | 2016-03-30 | 上海力炯金属科技有限公司 | Direct drive inner-cooling rolling mill |
| CN109013707A (en) * | 2018-09-29 | 2018-12-18 | 天津天重中直科技工程有限公司 | Bar jointing structure in short stress path rolling mill |
| CN109926449A (en) * | 2019-03-25 | 2019-06-25 | 浙江泽广泰精密科技有限公司 | A kind of two roller rolling device of hydraulic servo horizontal |
| CN114669604A (en) * | 2022-03-30 | 2022-06-28 | 中冶华天工程技术有限公司 | Pull rod device of short stress path rolling mill |
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| US20040237620A1 (en) * | 2001-09-04 | 2004-12-02 | Giorgio Lavaroni | Universal rolling stand with roll gap control |
| CN201231245Y (en) * | 2008-08-03 | 2009-05-06 | 邢台市粮食机械有限责任公司 | Battery pole-piece rolling mill |
| CN201470676U (en) * | 2009-08-04 | 2010-05-19 | 西安威科多机电设备有限公司 | Short stress line bar mill |
| CN202411088U (en) * | 2012-02-08 | 2012-09-05 | 中冶赛迪工程技术股份有限公司 | All-hydraulic roll gap adjustment short stress path rolling mill |
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2012
- 2012-02-08 CN CN201210027212XA patent/CN102553911A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040237620A1 (en) * | 2001-09-04 | 2004-12-02 | Giorgio Lavaroni | Universal rolling stand with roll gap control |
| CN201231245Y (en) * | 2008-08-03 | 2009-05-06 | 邢台市粮食机械有限责任公司 | Battery pole-piece rolling mill |
| CN201470676U (en) * | 2009-08-04 | 2010-05-19 | 西安威科多机电设备有限公司 | Short stress line bar mill |
| CN202411088U (en) * | 2012-02-08 | 2012-09-05 | 中冶赛迪工程技术股份有限公司 | All-hydraulic roll gap adjustment short stress path rolling mill |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764767A (en) * | 2012-08-21 | 2012-11-07 | 中冶赛迪工程技术股份有限公司 | Roller bearing block structure for rolling mill |
| CN104043656A (en) * | 2013-03-14 | 2014-09-17 | 宝山钢铁股份有限公司 | Method for testing hydraulic state of dynamic roll gaps through static pressure maintaining |
| CN104043656B (en) * | 2013-03-14 | 2016-04-27 | 宝山钢铁股份有限公司 | Static pressurize is utilized to test the method for dynamical roll gap hydraulic state |
| CN105032934A (en) * | 2015-07-24 | 2015-11-11 | 东北大学 | Irregular pipe cold-rolling forming device |
| CN105032934B (en) * | 2015-07-24 | 2017-01-18 | 东北大学 | Irregular pipe cold-rolling forming device |
| CN105436207A (en) * | 2015-11-24 | 2016-03-30 | 上海力炯金属科技有限公司 | Direct drive inner-cooling rolling mill |
| CN105436207B (en) * | 2015-11-24 | 2018-07-20 | 上海力炯金属科技有限公司 | A kind of straight drive inner-cooled milling train |
| CN109013707A (en) * | 2018-09-29 | 2018-12-18 | 天津天重中直科技工程有限公司 | Bar jointing structure in short stress path rolling mill |
| CN109013707B (en) * | 2018-09-29 | 2024-03-19 | 中重科技(天津)股份有限公司 | Pull rod connecting structure in short stress line rolling mill |
| CN109926449A (en) * | 2019-03-25 | 2019-06-25 | 浙江泽广泰精密科技有限公司 | A kind of two roller rolling device of hydraulic servo horizontal |
| CN114669604A (en) * | 2022-03-30 | 2022-06-28 | 中冶华天工程技术有限公司 | Pull rod device of short stress path rolling mill |
| CN114669604B (en) * | 2022-03-30 | 2024-03-01 | 中冶华天工程技术有限公司 | Pull rod device of short stress line rolling mill |
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Application publication date: 20120711 |