CN102688903A - Tester for correcting and compensating rolling pressure of steel rolling machine - Google Patents
Tester for correcting and compensating rolling pressure of steel rolling machine Download PDFInfo
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- CN102688903A CN102688903A CN2012101932324A CN201210193232A CN102688903A CN 102688903 A CN102688903 A CN 102688903A CN 2012101932324 A CN2012101932324 A CN 2012101932324A CN 201210193232 A CN201210193232 A CN 201210193232A CN 102688903 A CN102688903 A CN 102688903A
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- trapezoidal
- bearing pedestal
- roll chock
- bearing block
- force measuring
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Abstract
The invention relates to a tester for correcting and compensating the rolling pressure of a steel rolling machine, wherein two sides of a trapezoidal rolling bearing pedestal are respectively provided with four force measuring rods by threaded holes, the trapezoidal rolling bearing pedestal and a bearing pedestal auxiliary block are connected into a whole by the force measuring rods, spherical elastic blocks and force measuring sensors are arranged between the heads of the force measuring rods and the upper end face of the trapezoidal rolling bearing pedestal, and the force measuring sensors are contacted and connected with the upper end face of the trapezoidal rolling bearing pedestal. The tester adopts the composite bearing pedestal that the trapezoidal rolling bearing pedestal is combined with the bearing pedestal auxiliary block, the force measuring rods, the spherical elastic blocks and the force measuring sensors are arranged on the bearing pedestal, and the tendency of the static friction and the sliding friction generated between the trapezoidal rolling bearing pedestal and a rack can be used for testing the additional resistance generated between the trapezoidal rolling bearing pedestal and the rack, and correcting and compensating the test valve of the rolling pressure, so that the test precision can be greatly improved. Furthermore, due to the distribution of the four force measuring sensors, the test error caused by the uneven distribution of the frictional force at two sides of the bearing pedestal can be effectively avoided.
Description
Technical field
The present invention relates to a kind of pressure test device, especially a kind of testing arrangement that is used for rolling pressure of rolling mill correction and compensation.
Background technology
As one of topmost technical parameter of rolling mill, roll-force is the important parameter of assurance equipment operate as normal and product quality.Accurately confirm roll-force, reasonably formulate rolling procedure, bring into play milling train potentiality and improve product quality and yield etc. to greatest extent and have important practical significance.Theoretically, roll-force is not only with to be rolled the engineering properties of metal when the plastic deformation relevant, but also relevant with various mechanical condition with the production technology of complicacy; When so the analytic application method is confirmed roll-force theoretically; Not only to consider the correlative factor of various complicacies; And result of calculation is often quite different with reality; So at present in the actual production at home and abroad, confirm that roll-force the most reliably, method is directly to obtain through on-the-spot test the most accurately.
Usually acting on rolled piece on the roll and be called roll-force through the power that housing screw passes to frame, promptly is the vertical component that rolled piece is added on the reaction force of roll.In traditional roll-force test, often only pay attention to vertical component and ignore the added influence that its horizontal component causes vertical component.Because the existence of the static friction between bearing block and the frame; And under the effect of roll-force horizontal component; There is certain function power between roll chock and the frame, when the rigidity of the rigidity of the whole press down system of rolling mill and bearing block differs greatly, can thinks that all distortion of the system that under the effect of roll-force, depresses and bearing block, bearing etc. all are created in the press down system; Produce the trend of relative displacement Δ L this moment between roll chock and the frame; See Fig. 1, i.e. the trend of sliding friction, and by between the two active force and coefficient of friction and form frictional force.Machined surface quality, wearing and tearing, installation and lubricating condition between roll chock and the frame are poor more, and its frictional force is just big more, even produce the phenomenons such as non-equivalence that roll chock two is surveyed frictional force.P
YFor the vertical stress component of draught pressure is a roll-force, P
XBe the horizontal component of draught pressure, P
Y1Be the vertical support counter-force of bearing block, P
X1Be the horizontal support counter-force of bearing block, P
F1With P
F2For between roll chock and the frame because of P
XThe frictional force that causes with static friction.So according to mechanics principle:
P
Y=?P
Y1＋P
F1＋P
F2
Its existence meeting brings bigger influence to the test of power in rolling, when especially utilization being installed between depress spiro rod and the bearing block position and being installed in screw box place sensor, method and being rolled the power test.
Summary of the invention
The present invention will provide a kind of correction and compensation rolling pressure of rolling mill testing arrangement; This device is through the structure of roll chock and the dynamometry pull bar that is provided with therebetween; And utilize the static friction that produces between roll chock and the frame and the trend of sliding friction to test the additional drag that produces between roll chock and the frame; And the test value of draught pressure revised and compensate; Intensity and rigidity that this is simple in structure, as reliably, not influence roll chock, the effect that has desirable correction and compensation draught pressure to test.
Technical scheme of the present invention is; A kind of correction and compensation rolling pressure of rolling mill testing arrangement; Comprise trapezoidal roll chock, dynamometer link, sphere elastic force piece, force cell, bearing block auxiliary block; Be characterized in: four dynamometer links are installed through screwed hole respectively in trapezoidal roll chock both sides; And trapezoidal roll chock and bearing block auxiliary block connect into an integral body through dynamometer link; Be provided with sphere elastic force piece and force cell between dynamometer link head and the trapezoidal roll chock upper surface, and force cell is connected with the contact of trapezoidal roll chock upper surface.
The dynamometer link lower end is provided with screw thread, and the upper end is provided with spherical head, and spherical head contacts with sphere elastic force piece.
Sphere elastic force piece centre position has a groove, and the lower flat of sphere elastic force piece contacts with force cell.
Bearing block auxiliary block structure triangular in shape, its hypotenuse slope is identical with the corresponding trapezoidal hypotenuse slope of trapezoidal roll chock.
Trapezoidal roll chock is split type bearing block or integrated shaft bearing.
The invention has the beneficial effects as follows:
The composite shaft bearing that the present invention adopts trapezoidal roll chock to combine with the bearing block auxiliary block; Dynamometer link, sphere elastic force piece and force cell are installed on the composite shaft bearing utilizes the static friction that produces between trapezoidal roll chock and the frame and the trend of sliding friction to test the additional drag that produces between trapezoidal roll chock and the frame; And the test value of draught pressure revised and compensate, can improve measuring accuracy greatly.In addition, sphere elastic force piece can loosen again by aligning.The layout of four force cells can effectively prevent to survey the uneven test error that causes of friction distribution because of bearing block two.
The present invention is simple in structure, reliable, does not influence the intensity and the rigidity of roll chock, the effect that has desirable correction and compensation draught pressure to test.Promptly can be used for split type bearing block and also can be used for the integrated shaft bearing.
Description of drawings
Fig. 1 is the roll chock force diagram;
Fig. 2 is the testing arrangement structural representation that adopts split type bearing block;
Fig. 3 is the structural front view of split type bearing block;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the dynamometer link structural representation;
Fig. 6 is a sphere elastic force block structure cutaway view;
Fig. 7 is split type bearing block auxiliary block structural front view;
Fig. 8 is Fig. 7 left view;
Fig. 9 is the testing arrangement structural representation that adopts the integrated shaft bearing;
Figure 10 is the structural front view of integrated shaft bearing;
Figure 11 is the left view of Figure 10;
Figure 12 is an integrated shaft bearing auxiliary block structural front view;
Figure 13 is the left view of Figure 12.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
To shown in Figure 13, correction of the present invention and compensation rolling pressure of rolling mill testing arrangement comprise trapezoidal roll chock 1, dynamometer link 2, sphere elastic force piece 3, force cell 4, bearing block auxiliary block 5 etc. like Fig. 2.
Like Fig. 2; Shown in 9; Four dynamometer links are installed through screwed hole respectively in trapezoidal roll chock 1 both sides; And trapezoidal roll chock and bearing block auxiliary block connect into an integral body through dynamometer link, are provided with sphere elastic force piece 3 and force cell 4 between dynamometer link 2 heads and trapezoidal roll chock 1 upper surface, and force cell 4 is connected with the contact of trapezoidal roll chock 1 upper surface.
Shown in 3,4, trapezoidal roll chock 1 is split type bearing block, and respectively there is a trapezoidal hypotenuse split type bearing block both sides, and outstanding going up on the transverse plane respectively has two screwed holes.
As shown in Figure 5, dynamometer link 2 lower ends are provided with screw thread, and the upper end is provided with spherical head, and spherical head contacts with sphere elastic force piece.
As shown in Figure 6, sphere elastic force piece 3 centre positions have a groove, and the lower flat of sphere elastic force piece contacts with force cell 4.
Like Figure 10, shown in 11, trapezoidal roll chock 1 is the integrated shaft bearing, and respectively there is a trapezoidal hypotenuse integrated shaft bearing both sides, and outstanding going up on the transverse plane respectively has two screwed holes.
Like Fig. 7,8,12, shown in 13, bearing block auxiliary block 5 structures triangular in shape, its hypotenuse slope is identical with trapezoidal roll chock 1 corresponding trapezoidal hypotenuse slope.
The effect of each parts of the present invention:
(1) trapezoidal roll chock 1: the back-up roll bearing with bear and transmit draught pressure.It is along the big up and small down trapezium structure of draught pressure vertical direction.Adopting smooth matching surface with the resistance of reducing friction with the cooperation place of bearing block auxiliary block.This bearing block can form along draught pressure direction relative movement trend with the bearing block auxiliary block under the effect of draught pressure, and is obstructed along the relative motion of the contrary draught pressure direction projection cube structure owing to bearing block and bearing block auxiliary block bottom., screw-down then is synchronized with the movement when working because of the projection cube structure of bearing block and bearing block auxiliary block bottom.At the horizontal component P that is draught pressure
XEffect under, bearing block is given thrust of bearing block auxiliary block, same bearing block auxiliary block is given counter-force of bearing block because the effect of its inclined-plane contact will produce a thrust that makes progress, but the thrust that produces is minimum because the slope on inclined-plane is less.Be far smaller than the effect of draught pressure vertical stress component.Respectively be provided with two round tube holes in the bearing block both sides and be used for installing totally four dynamometer links.
(2) the bearing block auxiliary block 5: triangular structure, its hypotenuse slope is identical with trapezoidal roll chock 1 corresponding trapezoidal hypotenuse slope.Adopting smooth matching surface with the resistance of reducing friction with the cooperation place of bearing block.Effect lower trapezoid roll chock 1 at draught pressure can form along draught pressure direction relative movement trend with this bearing block auxiliary block 5, and is obstructed along the relative motion of contrary draught pressure direction.Respectively be provided with two screwed holes in trapezoidal roll chock both sides and be used for totally four dynamometer links 2 are installed, trapezoidal roll chock 1 is connected as a whole with bearing block auxiliary block 5 through dynamometer link 2.Its vertical plane and frame contacts side surfaces.
(3) dynamometer link 2: circular rod member, an end is a spherical structure for the screw thread other end.Be used to connect trapezoidal roll chock 1 and bearing block auxiliary block 5.Spherical head contacts with sphere elastic force piece 3, plays the effect of automatic aligning with sphere elastic force piece 3, guarantees that dynamometer link 2 is in the simple tension state all the time.
(4) force cell 4: be used between test chassis and the bearing block auxiliary block 5 at roll-force P
XEffect down with the frictional force P of factor formation such as static friction
FBecause at roll-force P
XUnder the effect, the rolling mill frame can receive a horizontal applied force, at roll-force P
YThe effect step has one along P
YThe trend of direction motion, so can produce a frictional force P between frame and the bearing block
FThis frictional force P
FEqual active force P
XWith the product of coefficientoffriction promptly:
P
F=P
X×μ
At roll-force P
YWith frictional force P
FInteraction under because the special construction of trapezoidal roll chock axle 1 and bearing block auxiliary block 5, trapezoidal roll chock 1 produces relative displacements with bearing block auxiliary block 5, makes that dynamometer link 2 is stressed and pass to force cell 4 through sphere elastic force piece 3.Thereby force cell 4 can be measured the added influence power that causes because of frictional force.The layout of four force cells 4 can effectively prevent to survey the uneven test error that causes of friction distribution because of 1 liang of trapezoidal roll chock.Its test value can be used to compensate and revise the test value of roll-force.Trapezoidal roll chock 1, bearing block auxiliary block 5, sphere elastic force piece 3 and force cell 4 be connected to combine through dynamometer link 2 carry out system calibrating and can improve measuring accuracy greatly.
Sphere elastic force piece 3: be installed in the spherical structure position of dynamometer link 2, play the effect of automatic aligning, guarantee that dynamometer link 2 is in the simple tension state all the time with the spherical structure position of dynamometer link 2.Centre position at sphere elastic force piece 3 height processes a groove, makes it when receiving dynamometer link screwed power, produce elastic compression, can also play the effect of loosening of elastic washer etc. during use.The lower flat of sphere elastic force piece 3 contacts with force cell 4.
Claims (5)
1. correction and compensation rolling pressure of rolling mill testing arrangement; Comprise trapezoidal roll chock (1), dynamometer link (2), sphere elastic force piece (3), force cell (4), bearing block auxiliary block (5); Its characteristics are levied and are: four dynamometer links (2) are installed through screwed hole respectively in said trapezoidal roll chock (1) both sides; And trapezoidal roll chock (1) connects into an integral body with bearing block auxiliary block (5) through dynamometer link (2); Be provided with sphere elastic force piece (3) and force cell (4) between dynamometer link (2) head and trapezoidal roll chock (1) upper surface, and force cell (4) is connected with the contact of trapezoidal roll chock (1) upper surface.
2. correction according to claim 1 and compensation rolling pressure of rolling mill testing arrangement, it is characterized in that: said dynamometer link (2) lower end is provided with screw thread, and the upper end is provided with spherical head, and spherical head contacts with sphere elastic force piece (3).
3. correction according to claim 1 and compensation rolling pressure of rolling mill testing arrangement, it is characterized in that: said sphere elastic force piece (3) centre position has a groove, and sphere elastic force piece (3) lower flat contacts with force cell (4).
4. correction according to claim 1 and compensation rolling pressure of rolling mill testing arrangement; It is characterized in that: said bearing block auxiliary block (5) structure triangular in shape, its hypotenuse slope is identical with the corresponding trapezoidal hypotenuse slope of trapezoidal roll chock (1).
5. correction according to claim 1 and compensation rolling pressure of rolling mill testing arrangement, it is characterized in that: said trapezoidal roll chock (1) is split type bearing block or integrated shaft bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193232.4A CN102688903B (en) | 2012-06-13 | 2012-06-13 | Tester for correcting and compensating rolling pressure of steel rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193232.4A CN102688903B (en) | 2012-06-13 | 2012-06-13 | Tester for correcting and compensating rolling pressure of steel rolling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102688903A true CN102688903A (en) | 2012-09-26 |
| CN102688903B CN102688903B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210193232.4A Active CN102688903B (en) | 2012-06-13 | 2012-06-13 | Tester for correcting and compensating rolling pressure of steel rolling machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644197A (en) * | 2016-10-28 | 2017-05-10 | 莆田市力天量控有限公司 | Rolling force sensor of Chinese character wang-shaped structure |
| CN113399475A (en) * | 2021-05-31 | 2021-09-17 | 武汉钢铁有限公司 | Rolling pressure measuring method for rolling mill |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213373A (en) * | 1975-07-23 | 1977-02-01 | Nippon Steel Corp | Method of weighing, rolling power, rolling toruqe and maximum rolling burdon |
| US4213509A (en) * | 1977-12-27 | 1980-07-22 | Pfister Gmbh | Hydrostatic setting apparatus for support of loads |
| JPS59141304A (en) * | 1983-01-29 | 1984-08-14 | Nippon Steel Corp | Rolling mill |
| US4945772A (en) * | 1988-11-30 | 1990-08-07 | Westvaco Corporation | Method of roll nip load measurement |
| CN101448587A (en) * | 2006-05-23 | 2009-06-03 | Sms迪马格股份公司 | Roll stand and method for rolling a rolled strip |
| CN201702176U (en) * | 2010-04-30 | 2011-01-12 | 河北宝生工程科技有限公司 | Lower roller box side locating device of split type twenty high rolling mill |
| CN102327902A (en) * | 2011-10-17 | 2012-01-25 | 北京中冶设备研究设计总院有限公司 | Device and method for measuring axial force of working roll of slab strip hot rolling mill |
| CN202741436U (en) * | 2012-06-13 | 2013-02-20 | 上海应用技术学院 | Test device for amending and compensating roll pressure of steel rolling machine |
-
2012
- 2012-06-13 CN CN201210193232.4A patent/CN102688903B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213373A (en) * | 1975-07-23 | 1977-02-01 | Nippon Steel Corp | Method of weighing, rolling power, rolling toruqe and maximum rolling burdon |
| US4213509A (en) * | 1977-12-27 | 1980-07-22 | Pfister Gmbh | Hydrostatic setting apparatus for support of loads |
| JPS59141304A (en) * | 1983-01-29 | 1984-08-14 | Nippon Steel Corp | Rolling mill |
| US4945772A (en) * | 1988-11-30 | 1990-08-07 | Westvaco Corporation | Method of roll nip load measurement |
| CN101448587A (en) * | 2006-05-23 | 2009-06-03 | Sms迪马格股份公司 | Roll stand and method for rolling a rolled strip |
| CN201702176U (en) * | 2010-04-30 | 2011-01-12 | 河北宝生工程科技有限公司 | Lower roller box side locating device of split type twenty high rolling mill |
| CN102327902A (en) * | 2011-10-17 | 2012-01-25 | 北京中冶设备研究设计总院有限公司 | Device and method for measuring axial force of working roll of slab strip hot rolling mill |
| CN202741436U (en) * | 2012-06-13 | 2013-02-20 | 上海应用技术学院 | Test device for amending and compensating roll pressure of steel rolling machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644197A (en) * | 2016-10-28 | 2017-05-10 | 莆田市力天量控有限公司 | Rolling force sensor of Chinese character wang-shaped structure |
| CN113399475A (en) * | 2021-05-31 | 2021-09-17 | 武汉钢铁有限公司 | Rolling pressure measuring method for rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102688903B (en) | 2014-07-30 |
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Owner name: SUZHOU XIANGLOU METAL PRODUCT CO., LTD. Free format text: FORMER OWNER: SHANGHAI INSTITUTE OF TECHNOLOGY Effective date: 20150803 |
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Effective date of registration: 20150803 Address after: Friendship Industrial Zone Songling town of Wujiang District of Suzhou City, Jiangsu province 215000 Patentee after: SUZHOU XIANGLOU METAL PRODUCTS CO., LTD. Address before: 200235 Xuhui District, Caobao Road, No. 120, Patentee before: Shanghai Institute of Technology |
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Address after: Friendship Industrial Zone Songling town of Wujiang District of Suzhou City, Jiangsu province 215000 Patentee after: Suzhou Xianglou New Material Co., Ltd. Address before: Friendship Industrial Zone Songling town of Wujiang District of Suzhou City, Jiangsu province 215000 Patentee before: SUZHOU XIANGLOU METAL PRODUCTS CO., LTD. |