CN103934290A - Seamless steel tube production device and three-roller guide mechanism thereof - Google Patents
Seamless steel tube production device and three-roller guide mechanism thereof Download PDFInfo
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- CN103934290A CN103934290A CN201410140338.7A CN201410140338A CN103934290A CN 103934290 A CN103934290 A CN 103934290A CN 201410140338 A CN201410140338 A CN 201410140338A CN 103934290 A CN103934290 A CN 103934290A
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Abstract
The invention discloses a seamless steel tube production device and a three-roller guide mechanism of the seamless steel tube production device. The three-roller guide mechanism comprises a rack, a first fixed shaft, a second fixed shaft, a third fixed shaft, two parallelogram connecting rod structures, three equal length short swing arms, three rollers and a driving part, wherein the first fixed shaft, the second fixed shaft and the third fixed shaft are fixedly connected to the rack, parallel to one another and arranged to form a first equilateral triangle, one of the two parallelogram connecting rod structures is connected with the first fixed shaft and the second fixed shaft, the other parallelogram connecting rod structure is connected with the first fixed shaft and the third fixed shaft, the two parallelogram connecting rod structures are arranged on the two opposite outer sides of the first equilateral triangle, the three equal length short swing arms are connected to the three fixed shafts respectively, the three rollers are connected to the short swing arms respectively, parallel to one another and arranged to form a second equilateral triangle, the rollers are parallel to the fixed shafts, the driving part is used for driving the two parallelogram connecting rod structures to rotate at the same angle and in the same direction, and the two parallelogram connecting rod structures drive the short swing arms to rotate when rotating so that the three rollers can change into a third equilateral triangle with increased or decreased side length. According to the seamless steel tube production device and the three-roller guide mechanism of the seamless steel tube production device, concentricity and wall thickness accuracy of produced steel tubes are ensured more reliably.
Description
Technical field
The present invention relates to seamless steel pipe production, relate in particular to for a kind of three roller guide mechanisms of seamless steel pipe production and there is the seamless steel pipe production of this three roller guides mechanism.
Background technology
Improving and improving along with seamless steel pipe production and technique; the demand pipe amount of the high accuracy such as oil well pipe, sleeve pipe and high alloy steel pipe, high added value increases; and modern seamless steel tube production mass, scale, the feature that becomes more meticulous, all the precision to equipment, performance are had higher requirement.Effectively control pipe, hollow billet distortion just can make seamless steel pipe concentricity and the wall thickness accuracy produced obtain ensureing more reliably.
Punch is the First visual plant of controlling pipe distortion in seamless steel tube production technique, and its effect is that solid pipe is become to desired hollow hollow billet.Its degree of eccentricity and wall thickness tolerance that passes hollow billet plays conclusive effect to production tube, and the operations such as its follow-up tube rolling all can not be corrected the degree of eccentricity and wall thickness tolerance, can only play expansion.Therefore, high-precision production tube just to when perforation push rod and the concentricity of punch and the guiding of outlet hollow billet have high requirement, along with the raising of production technology and product demand, people also propose more and more higher requirement to the quality of hollow billet.Piercing process requires to have a kind of equipment: in the time of perforation, tightly clasp push rod, can keep the stability of push rod, after perforation, hollow billet is had to guide effect, prevent the impact of hollow billet sideslip on follow-up perforation.According to the difference of outlet capillary outer diameter, the opening degree of guiding mechanism needs to carry out rapid adjustment.
Milling train is second visual plant controlling hollow billet distortion in seamless steel tube production technique, and its effect is the hollow hollow forging that hollow hollow billet is become to certain wall thickness requirement.Milling train plays conclusive effect to the wall thickness of end product steel pipe, and bias and the wall thickness deviation of its follow-up equipment to hollow forging has certain influence.Oblique milling seamless pipe pipe-mill in milling train, its outlet hollow forging advances as spiral, and fast because of muzzle velocity, whipping is violent, needs a kind of equipment to lead to hollow forging, prevents that hollow forging from having a negative impact to waste thickness of pipe wall in whipping process.And according to outlet hollow forging external diameter difference, the opening degree of guiding mechanism needs to carry out rapid adjustment.
To sum up, existing seamless steel pipe production, needs the adjustable guiding mechanism of a kind of opening, so that steel pipe concentricity and the wall thickness accuracy produced obtain ensureing more reliably.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of three roller guide mechanisms for seamless steel pipe production, with according to the difference of outlet capillary outer diameter, opening degree is carried out to rapid adjustment, so that steel pipe concentricity and the wall thickness accuracy produced obtain ensureing more reliably.
Another object of the present invention is to provide a kind of the present invention of having seamless steel pipe production of three roller guide mechanisms.
The present invention is achieved through the following technical solutions:
A kind of three roller guide mechanisms, for seamless steel pipe production, this three roller guides mechanism comprises, frame, be fixedly connected on described frame, be parallel to each other and be the first fixed axis, the second fixed axis and the 3rd fixed axis that the first equilateral triangle is arranged, connect the first parallelogram connection-rod structure of described the first fixed axis and described the second fixed axis, connect the second parallelogram connection-rod structure of described the first fixed axis and described the 3rd fixed axis, described in two, parallelogram connection-rod structure is positioned at two relative outsides of described the first equilateral triangle, be connected to described the first fixed axis, described the second fixed axis, the first isometric short swing arm of described the 3rd fixed axis, the second short swing arm, the 3rd short swing arm, be connected to being parallel to each other and being the first roller, the second roller and the 3rd roller that the second equilateral triangle is arranged of described the first short swing arm, the second short swing arm, the 3rd short swing arm, described the first roller is parallel to described the first fixed axis, in same cross section, described the second equilateral triangle overlaps with the geometric center of described the first equilateral triangle, and the actuator that drives described the first parallelogram connection-rod structure and described the second parallelogram connection-rod structure to rotate with same angle equidirectional, described the first parallelogram connection-rod structure and described the second parallelogram connection-rod structure drive described the first short swing arm while rotation, the second short swing arm, the 3rd short swing arm is rotated so that described the first roller, the second roller and the 3rd roller are changed to and are C grade limit triangular arrangement, the leg-of-mutton length of side in described C grade limit is greater than or less than the length of side of described the second equilateral triangle, described C grade limit triangle overlaps with the geometric center of described the first equilateral triangle.
Seamless steel pipe production of the present invention, has three roller guide mechanisms of the present invention.
Beneficial effect of the present invention, be, three roller guide mechanisms of the present invention, that one can ensure that center is constant, the mechanism that opening can regulate rapidly, be applied to perforator background and oblique tube mill backstage, when perforation, roller closure, three roller close together (become the length of side of equilateral triangle shorter), three roller guide mechanisms tightly clasp push rod, stability while strengthening push rod perforation, when hollow billet passes, guiding mechanism is opened to rapidly guiding position, roller is opened, the spacing of three rollers increases (length of side that is also equilateral triangle that roller becomes increases), hollow billet is led, the violent whipping of restriction hollow billet.During for oblique tube mill tube rolling, guiding mechanism is opened to guiding position (state that roller is opened) hollow forging is led, the violent whipping of restriction hollow forging.
Three roller guide mechanisms of the present invention, after installation is adjusted, the equal parallelogram multi-connecting-rod mechanism of the first two of Driven by Hydraulic Cylinder, two quadrilateral connecting rod rotational angles are identical, drive three rollers to do to move with width in the same way, realize closed clamping and open guide function, by the adjustment of adjusting pad thickness, can control the adjustment of three roller guiding aperture sizes; The second hydraulic cylinder is retracted and can be realized, and the opening action that upper roller is independent, can be for discharging.When the second hydraulic cylinder stretches out, clasp motionlessly, can realize three rollers on a concentrically ringed position.Clamp and open in the course of action of guiding three rollers closures, three rollers are all the time on the circle in same center, ensure the uniformity of three roller guide mechanisms and punch, pipe mill center line, can improve bias and the wall thickness accuracy of steel pipe, meet the technological action requirement of equipment after punch, oblique tube mill.
Brief description of the drawings
Fig. 1 is three roller guide mechanism front views of the embodiment of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is that many connecting rods of three roller guide mechanisms of the embodiment of the present invention equate quadrangle schematic diagram;
Fig. 4 is the part drawing of the depression bar 3 of example of the present invention;
Fig. 5 is the partial sectional view of the pull bar 6 of example of the present invention.
Detailed description of the invention
The exemplary embodiments that embodies feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various variations on different embodiment, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing be when the use that explain in itself, but not in order to limit the present invention.
The seamless steel pipe production of the embodiment of the present invention, has three roller guide mechanisms of the embodiment of the present invention, and three roller guide mechanisms of the embodiment of the present invention can be used in seamless steel pipe production.The seamless steel pipe production of the embodiment of the present invention, such as punch and oblique tube mill etc.Three roller guide mechanisms of the embodiment of the present invention, are specifically applied to (discharge end) after punch and oblique tube mill, be that punching machine post rod is fixed, and hollow billet and hollow forging are played to guide-localization effect.
Below specifically introduce three roller guide mechanisms of the embodiment of the present invention.
As Figure 1-Figure 5, the three roller guide mechanisms for seamless steel pipe production of the embodiment of the present invention, are many connecting rods three roller guide mechanisms that a kind of center is constant, opening is adjustable, it comprises: frame 1, the first bracket 2, depression bar 3, the second brackets 4, connecting rod 5, pull bar 6, roller 7, the first hydraulic cylinders 8, the second hydraulic cylinder 9, adjusts cushion block 10 and fixed axis (or claiming connecting axle) O, P, Q.
Frame 1 is the framework with the assembled welding of steel plate, it is the support of above-mentioned each parts, fixed axis O, P, Q are fixedly connected in frame 1, each fixed axis is to be parallel to each other and to be equilateral triangle to arrange, the second bracket 4, the first bracket 2 and depression bar 3 are arranged on respectively on fixed axis O, P, Q, can rotate around fixed axis O, P, Q, and the rotation of the second bracket 4, the first bracket 2 and depression bar 3 can drive the rotation of other the short swing arms on fixed axis O, P, Q, is also that the short swing arm on same fixed axis always links; Connecting rod 5 upper ends are articulated with the second bracket 4 by jointed shaft A, and connecting rod 5 lower ends are by hinged the first bracket 2 of jointed shaft B; The first bracket 2 drives the second bracket 4 to rotate by connecting rod 5; The lower end of pull bar 6 is articulated with the first bracket 2 by jointed shaft C, and the upper end of pull bar 6 is articulated with depression bar 3, and pull bar 6 can slide in the connecting shaft hole of depression bar 3; Roller 7 quantity are 3, be arranged in parallel and be parallel to fixed axis O, P, Q, being respectively roller X, roller Y and roller Z, being also equilateral triangle and arranging, that is to say on a concentrically ringed circumference, the geometric center of two equilateral triangles overlaps in other words conj.or perhaps.Roller X, roller Y and roller Z are connected in the first bracket 2 by fixed axis P, fixed axis Q and fixed axis O respectively, depression bar 3 and the second bracket 4, can by connecting rod 5 and pull bar 6 by the first hydraulic cylinder 8 drive simultaneously to center (geometric center of the above-mentioned concentrically ringed center of circle, equilateral triangle) draw close or away from; The first hydraulic cylinder 8 is fixed in frame 1, directly drive the first bracket 2, drive roller 7 to move together by the transmission of depression bar 3, the second bracket 4, connecting rod 5, pull bar 6, can adjust three roller X, Y, Z simultaneously and surround the size of opening (the common inscribed circles of three rollers); The second hydraulic cylinder 9 is fixed in frame 1, drives separately depression bar 3, and the jointed shaft D of depression bar 3, along pull bar 6 down slidings, drives superposed roller Z in roller 7 to open separately, to carry out discharging operation.
Why the jointed shaft D of depression bar 3 can be along pull bar 6 down sliding, and as shown in Figure 4 and Figure 5, jointed shaft D is fixed on depression bar 3 by support 31, and jointed shaft D is set on pull bar 6, and why jointed shaft D can be along pull bar 6 down sliding.
Adjust cushion block 10 and be arranged in frame 1, carry out mechanical position limitation by the arc surface 20 to the first bracket 2, realize the adjustment of pair of rollers 7 opening degree sizes.
As depicted in figs. 1 and 2, the first bracket 2 is made up of 3 short swing arm PB=PC=PY and a long arm swing PS angled centered by fixed axis P, three short swing arms are isometric, be PB=PC=PY, 3 isometric short swing arm PY, PB, PC connect respectively the lower end of roller Y, connecting rod 5, the lower end of pull bar 6, long arm swing PS connects the first hydraulic cylinder 8, the first hydraulic cylinders 8 and drives the first bracket 2 to rotate around fixed axis P.Long arm swing PS wherein and short swing arm PB are preferably one-body molded.
As shown in figures 1 and 3, depression bar 3 is made up of three swing arm QD, QE, QZ angled centered by fixed axis Q, and three swing arms isometric be QD=QE=QZ, three isometric swing arm QZ, QD, QE connect respectively upper end, second hydraulic cylinder 9 of roller Z, pull bar 6, depression bar 3 is driven around fixed axis Q and is rotated by pull bar 6 by the first bracket 2, pull bar 6 can slide in the connecting shaft hole of depression bar 3, and the second hydraulic cylinder 9 can drive separately depression bar 3 to drive roller 7 upwards to open.
The second bracket 4 is made up of two short swing arm OX, OA angled centered by fixed axis O, and two short swing arms isometric be OX=OA, two isometric short swing arm OX, OA connect respectively the upper end of roller X, connecting rod 5, and connecting rod 5 drives the second bracket 4 to rotate around fixed axis O.
As shown in Figure 1, adjusting cushion block 10 is round plates that one group of following table is worn boss 12, boss 12 can snap on the locating piece 11 in frame 1, prevent from adjusting cushion block 10 plaies, by the first hydraulic cylinder 8 being driven to the arc surface 20 contact location of long arm swing PS of the first bracket 2, realize the control that three rollers are opened amplitude, according to the requirement of piercing process, can change the adjustment cushion block 10 of different-thickness and realize the guiding to different-diameter hollow billet or hollow forging.
This patent is realized constant with one heart, and the principle of simultaneously opening adjustment is: the installation site of roller X, Y, Z, forms an equilateral triangle, and three rollers 7 are on a concentric circles, and three spacings are equal, i.e. XY=YZ=ZX.Fixed rotating shaft P, Q, the O of the first bracket 2, depression bar 3, the second bracket 4, also form an equilateral triangle, and on a concentric circles, and and the concentric circles center of circle that forms of roller 7 overlap, that is to say that the geometric center of the equilateral triangle that both become overlaps.Can find out from the equal quadrangle schematic diagram of the many connecting rods of Fig. 3, by the short swing arm PB of the first bracket 2, the short swing arm OA of the second bracket 4, connecting rod 5 forms a parallelogram ABPO, by the short swing arm PC of the first bracket 2, the swing arm QD of depression bar 3, pull bar 6 forms a parallelogram CDQP, according to the equilateral triangle of OPQ composition, can draw AB=OP=PQ=CD, according to the first bracket 2, depression bar 3, the short swing arm of the second bracket 4 is isometric, can draw OA=BP=PC=DQ, two parallelogram ABPO are equal with CDQP corresponding sides, BP and PC are two short swing arms on the first bracket 2, it rotates an angle, example 15 degree as shown in Figure 3, drive the short swing arm OA on short swing arm DQ and the second bracket 4 on depression bar 3 to rotate identical angle, drive roller X, Y, Z also rotates identical angle, realizing roller 7 opens, the opening that is roller 7 changes, but the home position of roller 7 is constant.
Introduce again the course of action of the three-roller guiding devices of the embodiment of the present invention below:
Roller 7 is opened: the free end S of the first hydraulic cylinder 8 stretches out, promote the first bracket 2 long arm swing PS above, drive the short swing arm PB of the first bracket 2, PC, on PY and short swing arm PY roller Y rotation, short swing arm PB drives the second bracket 4 galianconism OA above by connecting rod 5, roller X rotation on OX and OX, simultaneously, swing arm PC on the first bracket 2 drives depression bar 3 swing arm QD above by pull bar 6, QE, roller Z rotation on QZ and QZ, arc end 20 under long arm swing PS on the first bracket 2 is realized the control of roller 7 opening degrees by touching adjustment cushion block 10, the control of the length of side size of the equilateral triangle that namely roller forms, when the second hydraulic cylinder 9 is retracted, drive swing arm QZ and roller 7 to realize separately open by swing arm QE, while opening separately roller Z, the spacing between three rollers is no longer equal.
Roller closure: the second hydraulic cylinder 9 stretches out, drives roller 7 to rotate closed; The first hydraulic cylinder 8 is retracted, and drives the first bracket 2, depression bar 3, the second bracket 4 and roller above 7 to realize closed, and said closure is three states that the spacing between roller is less here, can comprise that spacing is 0 state.
Three roller guide mechanisms of the embodiment of the present invention, it is a kind of mechanism that can ensure that center is constant, opening can regulate rapidly, can be applicable to perforator background and oblique tube mill backstage, when punch is bored a hole, three states of roller guide mechanism in roller closure, tightly clasp push rod, stability while strengthening push rod perforation, when hollow billet passes, the free end S of the first hydraulic cylinder 8 stretches out, and three roller guide mechanisms of the embodiment of the present invention are opened to rapidly guiding position, the state that roller 7 is opened, hollow billet is led, the violent whipping of restriction hollow billet.During for oblique tube mill tube rolling, guiding mechanism is opened to guiding position hollow forging is led, the violent whipping of restriction hollow forging.
Technical scheme of the present invention is disclosed as above by preferred embodiment.Those skilled in the art should recognize change and the retouching the scope and spirit of the present invention that the appended claim of the present invention discloses, done in the case of not departing from, within all belonging to the protection domain of claim of the present invention.
Claims (10)
1. three roller guide mechanisms, for seamless steel pipe production, is characterized in that, this three roller guides mechanism comprises;
Frame;
Be fixedly connected on described frame, be parallel to each other and be the first fixed axis, the second fixed axis and the 3rd fixed axis that the first equilateral triangle is arranged;
Connect the first parallelogram connection-rod structure of described the first fixed axis and described the second fixed axis, connect the second parallelogram connection-rod structure of described the first fixed axis and described the 3rd fixed axis; Described in two, parallelogram connection-rod structure is positioned at two relative outsides of described the first equilateral triangle;
Be connected to described the first fixed axis, described the second fixed axis, the first isometric short swing arm of described the 3rd fixed axis, the second short swing arm, the 3rd short swing arm;
Be connected to being parallel to each other and being the first roller, the second roller and the 3rd roller that the second equilateral triangle is arranged of described the first short swing arm, the second short swing arm, the 3rd short swing arm, described the first roller is parallel to described the first fixed axis, in same cross section, described the second equilateral triangle overlaps with the geometric center of described the first equilateral triangle; And
Drive described the first parallelogram connection-rod structure and described the second parallelogram connection-rod structure actuator with the equidirectional rotation of same angle, described the first parallelogram connection-rod structure and described the second parallelogram connection-rod structure drive described the first short swing arm while rotation, the second short swing arm, the 3rd short swing arm is rotated so that described the first roller, the second roller and the 3rd roller are changed to and are C grade limit triangular arrangement, the leg-of-mutton length of side in described C grade limit is greater than or less than the length of side of described the second equilateral triangle, described C grade limit triangle overlaps with the geometric center of described the first equilateral triangle.
2. three roller guide mechanisms as claimed in claim 1, it is characterized in that, described actuator is the first hydraulic cylinder, also rotatingly on described the first fixed axis be connected with long arm swing and four short swing arm and the five short swing arm isometric with described the first short swing arm, described the 4th short swing arm belongs to described the first parallelogram connection-rod structure, described the 5th short swing arm belongs to described the second parallelogram connection-rod structure, and described long arm swing is connected between described the first fixed axis and the free end of described the first hydraulic cylinder.
3. three roller guide mechanisms as claimed in claim 2, it is characterized in that, also rotatingly on described the second fixed axis be connected with the six short swing arm isometric with described the second short swing arm, described the 6th short swing arm one end connects described the second fixed axis, the other end connects connecting rod, described the 4th short swing arm one end connects described connecting rod, and the other end connects described the first fixed axis, and described the first parallelogram connection-rod structure is made up of described the 4th short swing arm, described connecting rod and described the 6th short swing arm.
4. three roller guide mechanisms as claimed in claim 2, it is characterized in that, also rotatingly on described the 3rd fixed axis be connected with the seven short swing arm isometric with described the 3rd short swing arm, described the 7th short swing arm one end connects described the 3rd fixed axis, other end cylinder lever connecting rod, described the 5th short swing arm one end connects described pull bar, and the other end connects described the first fixed axis, and described the second parallelogram connection-rod structure is made up of described the 5th short swing arm, described pull bar and described the 7th short swing arm.
5. three roller guide mechanisms as claimed in claim 4, it is characterized in that, described the 3rd roller is positioned at the top of described the first roller and described the second roller, also rotatingly on described the 3rd fixed axis be connected with the eight short swing arm isometric with described the 3rd short swing arm, one end of described the 8th short swing arm connects described the 3rd fixed axis, the other end connects the free end of the second hydraulic cylinder, when the free end of described the second hydraulic cylinder is retracted, drive described the 3rd short swing arm that described the 3rd roller is realized by described the 8th short swing arm and open separately.
6. three roller guide mechanisms as claimed in claim 4, is characterized in that, described pull bar can slide in the connecting shaft hole of described the 3rd fixed axis.
7. three roller guide mechanisms as claimed in claim 2, it is characterized in that, described three roller guide mechanisms also comprise rack-mounted adjustment cushion block, described long arm swing has an arc surface, described arc surface is positioned at the below of described long arm swing and the free-ended pin joint of described the first hydraulic cylinder, by described adjustment cushion block, described arc surface is carried out to mechanical position limitation, realize the adjustment to the leg-of-mutton length of side in described C grade limit.
8. three roller guide mechanisms as claimed in claim 1, is characterized in that, one group of following table that described adjustment cushion block is variable thickness is worn the round plate of boss, and described boss snaps on the locating piece in described frame to prevent described adjustment cushion block play.
9. a seamless steel pipe production, is characterized in that, described seamless steel pipe production has the arbitrary three described roller guide mechanisms of claim 1-8.
10. three roller guide mechanisms as claimed in claim 9, is characterized in that, described seamless steel pipe production is punch or oblique tube mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410140338.7A CN103934290B (en) | 2014-04-09 | 2014-04-09 | Seamless steel pipe production and three roller guide mechanisms thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410140338.7A CN103934290B (en) | 2014-04-09 | 2014-04-09 | Seamless steel pipe production and three roller guide mechanisms thereof |
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| CN103934290A true CN103934290A (en) | 2014-07-23 |
| CN103934290B CN103934290B (en) | 2015-11-25 |
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| CN201410140338.7A Active CN103934290B (en) | 2014-04-09 | 2014-04-09 | Seamless steel pipe production and three roller guide mechanisms thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170656A (en) * | 2015-09-15 | 2015-12-23 | 鑫鹏源智能装备集团有限公司 | Slight-holding-type in-puncher roller for puncher |
| CN107520251A (en) * | 2017-09-29 | 2017-12-29 | 浙江明贺钢管有限公司 | Milling train backstage Three-roll plug steadier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2308331C2 (en) * | 2005-12-22 | 2007-10-20 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Centering roller-type apparatus of tube rolling mill |
| CN102327904A (en) * | 2011-07-26 | 2012-01-25 | 太原通泽重工有限公司 | Three-roller centering device for rolling mill |
| CN102357539A (en) * | 2011-07-26 | 2012-02-22 | 太原通泽重工有限公司 | Built-in three-roller guiding device |
| CN102500630A (en) * | 2011-10-26 | 2012-06-20 | 太原重工股份有限公司 | Three-roller guide device for accurate positioning |
-
2014
- 2014-04-09 CN CN201410140338.7A patent/CN103934290B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2308331C2 (en) * | 2005-12-22 | 2007-10-20 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Centering roller-type apparatus of tube rolling mill |
| CN102327904A (en) * | 2011-07-26 | 2012-01-25 | 太原通泽重工有限公司 | Three-roller centering device for rolling mill |
| CN102357539A (en) * | 2011-07-26 | 2012-02-22 | 太原通泽重工有限公司 | Built-in three-roller guiding device |
| CN102500630A (en) * | 2011-10-26 | 2012-06-20 | 太原重工股份有限公司 | Three-roller guide device for accurate positioning |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170656A (en) * | 2015-09-15 | 2015-12-23 | 鑫鹏源智能装备集团有限公司 | Slight-holding-type in-puncher roller for puncher |
| CN107520251A (en) * | 2017-09-29 | 2017-12-29 | 浙江明贺钢管有限公司 | Milling train backstage Three-roll plug steadier |
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| Publication number | Publication date |
|---|---|
| CN103934290B (en) | 2015-11-25 |
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