CN102688903B - 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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- CN102688903B CN102688903B CN201210193232.4A CN201210193232A CN102688903B CN 102688903 B CN102688903 B CN 102688903B CN 201210193232 A CN201210193232 A CN 201210193232A CN 102688903 B CN102688903 B CN 102688903B
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- trapezoidal
- bearing pedestal
- bearing block
- roll chock
- force
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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 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 the normal work of guarantee equipment and product quality.Accurately determine roll-force, reasonably formulate rolling procedure, bring into play milling train potentiality and improve product quality and yield etc. and to have important practical significance to greatest extent.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 complicated production technology; When so analytic application method is determined roll-force theoretically, not only to consider the correlative factor of various complexity, and result of calculation is often quite different with reality, so at present in actual production at home and abroad, determine that roll-force the most reliably, method is directly to obtain by on-the-spot test the most accurately.
Conventionally rolled piece being acted on roll and be called roll-force by the power that housing screw passes to frame, is the vertical component that rolled piece is added on the reaction force of roll.In traditional roll-force test, often only focus on vertical component and ignore the added influence that its horizontal component causes vertical component.Due to the existence of the static friction between bearing block and frame, and under the effect of roll-force horizontal component, between roll chock and frame, there is certain active force, in the time that the rigidity of the whole press down system of rolling mill and the rigidity of bearing block differ greatly, can think press down system and bearing block under the effect of roll-force, all distortion of bearing etc. are all created in press down system, now between roll chock and frame, produce the trend of relative displacement Δ L, see Fig. 1, be the trend of sliding friction, and by active force between the two and coefficient of friction and form frictional force.Machined surface quality, wearing and tearing, installation and lubricating condition between roll chock and frame are poorer, and its frictional force is just larger, even produce roll chock two and survey the phenomenon such as non-equivalence of frictional force.P
yfor the vertical stress component of draught pressure is roll-force, P
xfor the horizontal component of draught pressure, P
y1for the vertical support counter-force of bearing block, P
x1for the horizontal support counter-force of bearing block, P
f1with P
f2for between roll chock and frame because of P
xthe frictional force causing with static friction.So according to mechanics principle:
P
Y=?P
Y1＋P
F1＋P
F2
Its existence meeting brings larger impact to the test of power in rolling, is especially arranged between depress spiro rod and bearing block position and is arranged on screw box place sensor, method while being rolled power test utilizing.
Summary of the invention
The present invention will provide a kind of to revise and compensation rolling pressure of rolling mill testing arrangement, this device is by the structure of roll chock and the dynamometry pull bar arranging therebetween, and utilize the static friction that produces between roll chock and frame and the trend of sliding friction to test the additional drag producing between roll chock and frame, and the test value of draught pressure is revised and compensation, the strength and stiffness that this is simple in structure, reliably, not affect 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 by screwed hole respectively in trapezoidal roll chock both sides, and trapezoidal roll chock and bearing block auxiliary block connect into an entirety by dynamometer link, between dynamometer link head and trapezoidal roll chock upper surface, be provided with sphere elastic force piece and force cell, and force cell is connected with the contact of trapezoidal roll chock upper surface.
Dynamometer link lower end is provided with screw thread, and 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 trapezoidal hypotenuse slope corresponding with trapezoidal roll chock is identical.
Trapezoidal roll chock is split type bearing block or integrated bearing block.
The invention has the beneficial effects as follows:
The composite shaft bearing that the present invention adopts trapezoidal roll chock to combine with bearing block auxiliary block, dynamometer link, sphere elastic force piece and force cell are installed in composite shaft bearing utilizes the static friction that produces between trapezoidal roll chock and frame and the trend of sliding friction to test the additional drag producing between trapezoidal roll chock and frame, and the test value of draught pressure is revised and compensation, can improve greatly measuring accuracy.In addition, sphere elastic force piece can loosen again by aligning.The layout of four force cells can effectively prevent from surveying because of bearing block two test error that frictional force skewness causes.
The present invention is simple in structure, reliable, does not affect the strength and stiffness of roll chock, the effect that has desirable correction and compensation draught pressure to test.Can be used for split type bearing block also can be for integrated bearing block.
Brief description of the drawings
Fig. 1 is 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 dynamometer link structural representation;
Fig. 6 is 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 integrated bearing block;
Figure 10 is the structural front view of integrated bearing block;
Figure 11 is the left view of Figure 10;
Figure 12 is integrated bearing block auxiliary block structural front view;
Figure 13 is the left view of Figure 12.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Fig. 2 to 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.
As Fig. 2, shown in 9, four dynamometer links are installed by screwed hole respectively in trapezoidal roll chock 1 both sides, and trapezoidal roll chock and bearing block auxiliary block connect into an entirety by dynamometer link, between dynamometer link 2 heads and trapezoidal roll chock 1 upper surface, be provided with sphere elastic force piece 3 and force cell 4, and force cell 4 is connected with trapezoidal roll chock 1 upper surface contact.
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 respectively has two screwed holes on outstanding upper transverse plane.
As shown in Figure 5, dynamometer link 2 lower ends are provided with screw thread, and 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.
As Figure 10, shown in 11, trapezoidal roll chock 1 is integrated bearing block, and respectively there is a trapezoidal hypotenuse integrated bearing block both sides, and respectively has two screwed holes on outstanding upper transverse plane.
As Fig. 7,8,12, shown in 13, bearing block auxiliary block 5 structure triangular in shape, its hypotenuse slope trapezoidal hypotenuse slope corresponding with trapezoidal roll chock 1 is identical.
The effect of each parts of the present invention:
(1) trapezoidal roll chock 1: 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 capable of reducing friction resistance with the cooperation place of bearing block auxiliary block.Under the effect of draught pressure, this bearing block can form the trend along the relative motion of draught pressure direction with bearing block auxiliary block, and the relative motion of the contrary draught pressure direction in edge is because the projection cube structure of bearing block and bearing block auxiliary block bottom is obstructed.In the time that working, screw-down is synchronized with the movement 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 to thrust of bearing block auxiliary block, same bearing block auxiliary block is to counter-force of bearing block, because the effect of its inclined-plane contact will produce a thrust upwards, therefore but because the thrust of the less generation of slope on inclined-plane is minimum.Be far smaller than the effect of draught pressure vertical stress component.Respectively be provided with two round tube holes in bearing block both sides for totally four dynamometer links are installed.
(2) bearing block auxiliary block 5: triangular structure, its hypotenuse slope trapezoidal hypotenuse slope corresponding with trapezoidal roll chock 1 is identical.Adopting smooth matching surface with capable of reducing friction resistance with the cooperation place of bearing block.Effect lower trapezoid roll chock 1 at draught pressure can form along the trend of draught pressure direction relative motion 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 for totally four dynamometer links 2 are installed, trapezoidal roll chock 1 is connected as a whole with bearing block auxiliary block 5 by dynamometer link 2.Its vertical plane and frame contacts side surfaces.
(3) dynamometer link 2: circular rod member, one end is that the screw thread other end is spherical structure.Be used for connecting 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 together with sphere elastic force piece 3, ensures that dynamometer link 2 is all the time in simple tension state.
(4) force cell 4: between test chassis and bearing block auxiliary block 5 at roll-force P
xthe lower frictional force P with the factor formation such as static friction of effect
f.Because at roll-force P
xunder effect, frame of rolling mill can be subject to a horizontal applied force, at roll-force P
yeffect step has one along P
ythe trend of direction motion, therefore can produce a frictional force P between frame and bearing block
f.This frictional force P
fequal active force P
xwith the product of coefficientoffrictionμ:
P
F=P
X×μ
At roll-force P
ywith frictional force P
finteraction under, due to the special construction of trapezoidal roll chock axle 1 and bearing block auxiliary block 5, trapezoidal roll chock 1 produces relative displacement with bearing block auxiliary block 5, makes dynamometer link 2 stressed and pass to force cell 4 by sphere elastic force piece 3.Thereby force cell 4 can be measured the added influence power causing because of frictional force.The layout of four force cells 4 can effectively prevent from surveying because of 1 liang of trapezoidal roll chock the test error that frictional force skewness causes.Its test value can be for compensation and the test value of revising roll-force.Trapezoidal roll chock 1, bearing block auxiliary block 5, sphere elastic force piece 3 and force cell 4 are connected to combine by dynamometer link 2 and carry out system calibrating and can improve greatly measuring accuracy.
Sphere elastic force piece 3: be arranged on the spherical structure position of dynamometer link 2, with the effect of playing automatic aligning together with the spherical structure position of dynamometer link 2, ensure that dynamometer link 2 is all the time in simple tension state.Centre position at sphere elastic force piece 3 height processes a groove, makes it in the time being subject to dynamometer link threaded tightening force, produce elastic compression, can also play during use the effect of loosening of elastic washer etc.The lower flat of sphere elastic force piece 3 contacts with force cell 4.
Claims (4)
1. a 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), it is characterized in that: four dynamometer links (2) are installed by screwed hole respectively in described trapezoidal roll chock (1) both sides, and trapezoidal roll chock (1) connects into an entirety with bearing block auxiliary block (5) by dynamometer link (2), between dynamometer link (2) head and trapezoidal roll chock (1) upper surface, be provided with sphere elastic force piece (3) and force cell (4), and force cell (4) is connected with the contact of trapezoidal roll chock (1) upper surface, described bearing block auxiliary block (5) structure triangular in shape, its hypotenuse slope trapezoidal hypotenuse slope corresponding with trapezoidal roll chock (1) is identical.
2. correction according to claim 1 and compensation rolling pressure of rolling mill testing arrangement, is characterized in that: described dynamometer link (2) lower end is provided with screw thread, and 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, is characterized in that: described 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, is characterized in that: described trapezoidal roll chock (1) is split type bearing block or integrated bearing block.
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 CN102688903A (en) | 2012-09-26 |
| CN102688903B true CN102688903B (en) | 2014-07-30 |
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ID=46854733
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102688903B (en) |
Families Citing this family (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 |
| CN113399475B (en) * | 2021-05-31 | 2022-04-22 | 武汉钢铁有限公司 | Rolling pressure measuring method for rolling mill |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213509A (en) * | 1977-12-27 | 1980-07-22 | Pfister Gmbh | Hydrostatic setting apparatus for support of loads |
| 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 |
Family Cites Families (2)
| 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 |
| JPS59141304A (en) * | 1983-01-29 | 1984-08-14 | Nippon Steel Corp | Rolling mill |
-
2012
- 2012-06-13 CN CN201210193232.4A patent/CN102688903B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213509A (en) * | 1977-12-27 | 1980-07-22 | Pfister Gmbh | Hydrostatic setting apparatus for support of loads |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| JP昭59-141304A 1984.08.14 |
| JP特开昭52-13373A 1977.02.01 |
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| Publication number | Publication date |
|---|---|
| CN102688903A (en) | 2012-09-26 |
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Owner name: SUZHOU XIANGLOU METAL PRODUCT CO., LTD. Free format text: FORMER OWNER: SHANGHAI INSTITUTE OF TECHNOLOGY Effective date: 20150803 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
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. |