CN101428296B - Pre-rotation apparatus for large-scale punching machine post rod - Google Patents
Pre-rotation apparatus for large-scale punching machine post rod Download PDFInfo
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- CN101428296B CN101428296B CN2008102314296A CN200810231429A CN101428296B CN 101428296 B CN101428296 B CN 101428296B CN 2008102314296 A CN2008102314296 A CN 2008102314296A CN 200810231429 A CN200810231429 A CN 200810231429A CN 101428296 B CN101428296 B CN 101428296B
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Abstract
A pre-rotation device for a knockout pin of a large-sized punching machine mainly comprises a frame (1), an upper press roller assembly (2) (comprising a lead screw nut (2.1), a stepped lead screw (2.2), a press plate (2.3), a belleville spring (2.4) a rectangular slider (2.5), a driven press roller (2.6) and a driven shaft (2.7)), and two sets of driving roller assemblies (3) with the same structure (comprising a reducing motor (3.1), a chain wheel (3.2), a chain (3.3), an oil cylinder bracket (3,4), a slider (3.5), an oil cylinder (3.6), a driving press roller (3.7) and a sliding plate (3.8)), wherein, the upper press roller assembly is arranged in the middle position above the frame; the two sets of driving roller assemblies are inclinedly, reversely and symmetrically arranged on the two sides of the frame; and the central axial line of the upper press roller assembly form an included angle of 120 DEG with the central axial line of each inclinedly arranged driving roller assembly. The device can supply certain start torque to the knockout pin at an instant of a tube blank engaging with a rolling pass and contacting the knockout pin, and reduce capillary tube breakage and hole-punching difficulty due to oversized moment of inertia of the knockout pin during the hole-punching process.
Description
Technical field
The invention belongs to piercing mill of seamless steel tube auxiliary equipment technical field, refer more particularly to a kind of pre-rotation apparatus that is used for large-scale punching machine post rod.
Background technology
Punch is the main former of seamless steel tube production, it is to utilize two rolls, go up bottom guide and come directly towards formed closed type, at high temperature the steel pipe blank is carried out backing and makes it pass closed type, make solid bar pierce into seamless steel pipe, the basic functional principle of Here it is punch.
Major impetus source in the perforation procedure is two rolls, and under huge roll-force and frictional force effect, complicated plastic deformation takes place rolled piece, and rotates and move along the roll line direction around roll line.Meanwhile, push rod under the effect of frictional force also along with hollow billet rotates together.
In middle-size and small-size perforation unit, usually the diameter and the length of push rod are generally little, rotary inertia is less relatively, and push rod rotates required rotating torque and provided by the frictional force of rolled piece to the top, generally can not cause hollow billet to be torn in the perforation procedure or accident such as the difficulty of boring a hole.
But for large-scale punching machine, along with the increase of push rod diameter and length, the also corresponding increase of push rod rotary inertia, this explanation want to make push rod to rotate with rolled piece in perforation procedure must obtain bigger rotating torque.Fact proved, because the push rod rotary inertia is increased to a certain degree, it is very difficult only depending on rolled piece to the frictional force that comes directly towards it to be rotated in the operation of rolling, cause overlapping defective of hollow billet inner surface or roll-force to increase perforation procedure easily and be difficult to carry out smoothly, serious meeting generation hollow billet such as is torn at accident.
Summary of the invention
For addressing the above problem, the present invention has designed a kind of pre-rotation apparatus that is used for large-scale punching machine post rod, this pre-rotation apparatus provides auxiliary rotating torque for large-scale punching machine super-big and overweight push rod, can offer the certain detent torque of push rod in the moment that pipe is nipped rolling groove and touched the top, reduce in the perforation procedure difficulty because the excessive hollow billet that causes of push rod rotary inertia is torn and bored a hole.
For achieving the above object, the present invention has adopted following technical scheme:
The described pre-rotation apparatus that is used for large-scale punching machine post rod mainly is to be made of frame, last pressure roller assembly and the two driven roller assemblies that overlap same structures, wherein go up the pressure roller assembly and be configured in center, frame top, two cover driven roller assemblies are the both sides that the inclination reverse symmetry is configured in frame, and last pressure roller assembly central axis respectively becomes 120 ° of angles with the driven roller assembly central axis of every suit tilted configuration.
The described pre-rotation apparatus that is used for large-scale punching machine post rod, pressure roller assembly is by feed screw nut, step leading screw, pressing plate, butterfly spring, rectangle slide, formed by dynamic pressure roller and driven axle on it, in the horizontal support plate of frame upside, connect two identical feed screw nuts that are step-like respectively by bolt, be connected with the step leading screw in each feed screw nut, the step place of each step leading screw all is fixed in the circular hole of rectangle slide by pressing plate, and the lower end, step place by the step leading screw in the circular hole disposes butterfly spring; The rectangle slide is limited in micro-up and down the moving of the interior work of guide plate of frame both sides, by bearing driven axle is installed in the installing hole of both sides, rectangle slide lower end protrusion, the passive pressure roller of connection on the driven axle.
The described pre-rotation apparatus that is used for large-scale punching machine post rod, its driven roller assembly is by reducing motor, sprocket wheel, chain, cylinder support, slide, oil cylinder, initiative compression roller and slide plate are formed, be welded with bearing diagonal separately simultaneously in frame both sides inclination reverse symmetry position, by screw attachment chute is up and down arranged in the bearing diagonal that has a down dip on each, respectively being fitted with one slide-plate in the chute up and down puts together on the slide respectively, the front end of slide is equipped with initiative compression roller, its other end is provided with reducing motor, reducing motor connects sprocket wheel, sprocket wheel configuration chain, chain links with initiative compression roller; By screw attachment cylinder support is arranged in slide, the center fixed of oil cylinder is at cylinder support, and the end of oil cylinder is fixed in the gusset piece of slide, and the front end earrings of oil cylinder is connected with the anterior ear seat of slide.
Because adopt aforesaid technical scheme, the present invention has following superiority:
The present invention is simple and reliable for structure, easy to operate, manufacturing and maintenance cost are lower, can be widely used in the auxiliary rotation of large-sized seamless steel pipe perforation unit push rod and axially needs assist other association area of rotating torque.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the sectional structure schematic diagram is looked on a pressure roller assembly left side in the present invention;
Fig. 3 is a driven roller assembly structure schematic diagram of the present invention;
Among the above-mentioned figure: the 1-frame; 1.1-bearing diagonal; The last pressure roller assembly of 2-; 2.1-feed screw nut; 2.2-step leading screw; 2.3-pressing plate; 2.4-butterfly spring; 2.5-rectangle slide; 2.6-by dynamic pressure roller; 2.7-driven axle; 3-driven roller assembly; 3.1-reducing motor; 3.2-sprocket wheel; 3.3-chain; 3.4-cylinder support; 3.5-slide; 3.6-oil cylinder; 3.7-initiative compression roller; 3.8-slide plate.
The specific embodiment
In conjunction with Fig. 1, the pre-rotation apparatus that is used for large-scale punching machine post rod of the present invention mainly is by frame (1), goes up driven roller assembly (3) formation that pressure roller assembly (2) and two overlaps same structures, wherein go up pressure roller assembly (2) and be configured in center, frame (1) top, two cover driven roller assemblies (3) are the both sides that the inclination reverse symmetry is configured in frame (1), and last pressure roller assembly (2) central axis respectively becomes 120 ° of angles with driven roller assembly (3) central axis of every suit tilted configuration.
In conjunction with Fig. 2, the pre-rotation apparatus that is used for large-scale punching machine post rod of the present invention, pressure roller assembly (2) is by feed screw nut (2.1) on it, step leading screw (2.2), pressing plate (2.3), butterfly spring (2.4), rectangle slide (2.5), formed by dynamic pressure roller (2.6) and driven axle (2.7), in the horizontal support plate of frame (1) upside, connect two the identical feed screw nuts (2.1) that are step-like respectively by bolt, be connected with step leading screw (2.2) in each feed screw nut (2.1), the step place of each step leading screw (2.2) all is fixed in the circular hole of rectangle slide (2.5) by pressing plate (2.3), and the lower end, step place by step leading screw (2.2) in the circular hole disposes butterfly spring (2.4); Rectangle slide (2.5) is limited in micro-up and down the moving of the interior work of guide plate of frame (1) both sides, by bearing driven axle (2.7) is installed in the installing hole that protrude rectangle slide (2.5) both sides, lower end, driven axle (2.7) is gone up and is connected passive pressure roller (2.6).
The pre-rotation apparatus that is used for large-scale punching machine post rod of the present invention, its driven roller assembly (3) is by reducing motor (3.1), sprocket wheel (3.2), chain (3.3), cylinder support (3.4), slide (3.5), oil cylinder (3.6), initiative compression roller (3.7) and slide plate (3.8) are formed, be welded with bearing diagonal (1.1) separately simultaneously in frame (1) both sides inclination reverse symmetry position, (1.1) have chute up and down by screw attachment in the bearing diagonal that has a down dip on each, respectively being fitted with one slide-plate (3.8) in the chute up and down puts together on respectively on the slide (3.5), the front end of slide (3.5) is equipped with initiative compression roller (3.7), its other end is provided with reducing motor (3.1), reducing motor (3.1) connects sprocket wheel (3.2), sprocket wheel (3.2) configuration chain (3.3), chain (3.3) links with initiative compression roller (3.7); In slide (3.5), cylinder support (3.4) is arranged by screw attachment, the center fixed of oil cylinder (3.6) is in cylinder support (3.4), the end of oil cylinder (3.6) is fixed in the gusset piece of slide (3.5), and the front end earrings of oil cylinder (3.6) is connected with the anterior ear seat of slide (3.5).
The present invention can produce characteristics with pop-off moment according to frictional force, frictional force is being aided with the assistant starting torque in as the moment transmission, by being being held tightly at one time by dynamic pressure roller (2.6) and two initiative compression rollers (3.7) and breaking away from push rod of 120 ° of configurations.All the time contacted with rolling pipe diameter by the pretightning force of dynamic pressure roller (2.6) by two butterfly springs (2.4), be snapped into pass and touch moment of top at pipe, two initiative compression rollers (3.7) are held tightly push rod by oil cylinder (3.6) and by reducing motor (3.1) and chain (3.3) transmission push rod rotated provides starting friction moment.When push rod contact pipe and moment of the effect of its moment of friction being begun to rotate at pipe, two initiative compression rollers (3.7) hightail push rod under hydraulic jack (3.6) drives, and push rod just begins to rotate under the effect of pipe to its frictional force.Like this, pre-rotation apparatus not only can provide the assistant starting torque to push rod, and can not take place owing to matched by dynamic pressure roller (2.6) and two initiative compression rollers (3.7) and push rod technology rotating speed perforation procedure not to be caused negative effect.Can be carried out location just by step leading screw (2.2) adjusting according to the push rod external diameter by dynamic pressure roller (2.6), utilize the deformation rigidity of butterfly spring (2.4) to reduce to impact.Two initiative compression rollers (3.7) are driven by reducing motor (3.1) respectively, oil cylinder (3.6) in the slide (3.5) supports initiative compression roller (3.7) and realizes that trace moves, utilize oil cylinder (3.6) to compress or break away from push rod, can prevent that push rod from departing from roll line, simultaneously the rear end that is installed in push rod by dynamic pressure roller (2.6) and two initiative compression rollers (3.7) has certain stabilization equally to raising push rod stiffness coefficient.
Claims (3)
1. pre-rotation apparatus that is used for large-scale punching machine post rod, it is characterized in that: this pre-rotation apparatus mainly is by frame (1), goes up driven roller assembly (3) formation that pressure roller assembly (2) and two overlaps same structures, wherein go up pressure roller assembly (2) and be configured in center, frame (1) top, two cover driven roller assemblies (3) are the both sides that the inclination reverse symmetry is configured in frame (1), and last pressure roller assembly (2) central axis respectively becomes 120 ° of angles with driven roller assembly (3) central axis of every suit tilted configuration.
2. the pre-rotation apparatus that is used for large-scale punching machine post rod according to claim 1, it is characterized in that: pressure roller assembly (2) is by feed screw nut (2.1) on it, step leading screw (2.2), pressing plate (2.3), butterfly spring (2.4), rectangle slide (2.5), formed by dynamic pressure roller (2.6) and driven axle (2.7), in the horizontal support plate of frame (1) upside, connect two the identical feed screw nuts (2.1) that are step-like respectively by bolt, be connected with step leading screw (2.2) in each feed screw nut (2.1), the step place of each step leading screw (2.2) all is fixed in the circular hole of rectangle slide (2.5) by pressing plate (2.3), and the lower end, step place by step leading screw (2.2) in the circular hole disposes butterfly spring (2.4); Rectangle slide (2.5) is limited in micro-up and down the moving of the interior work of guide plate of frame (1) both sides, by bearing driven axle (2.7) is installed in the installing hole that protrude rectangle slide (2.5) both sides, lower end, driven axle (2.7) is gone up and is connected passive pressure roller (2.6).
3. the pre-rotation apparatus that is used for large-scale punching machine post rod according to claim 1, it is characterized in that: its driven roller assembly (3) is by reducing motor (3.1), sprocket wheel (3.2), chain (3.3), cylinder support (3.4), slide (3.5), oil cylinder (3.6), initiative compression roller (3.7) and slide plate (3.8) are formed, be welded with bearing diagonal (1.1) separately simultaneously in frame (1) both sides inclination reverse symmetry position, (1.1) have chute up and down by screw attachment in the bearing diagonal that has a down dip on each, respectively being fitted with one slide-plate (3.8) in the chute up and down puts together on respectively on the slide (3.5), the front end of slide (3.5) is equipped with initiative compression roller (3.7), its other end is provided with reducing motor (3.1), reducing motor (3.1) connects sprocket wheel (3.2), sprocket wheel (3.2) configuration chain (3.3), chain (3.3) links with initiative compression roller (3.7); In slide (3.5), cylinder support (3.4) is arranged by screw attachment, the center fixed of oil cylinder (3.6) is in cylinder support (3.4), the end of oil cylinder (3.6) is fixed in the gusset piece of slide (3.5), and the front end earrings of oil cylinder (3.6) is connected with the anterior ear seat of slide (3.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102314296A CN101428296B (en) | 2008-12-08 | 2008-12-08 | Pre-rotation apparatus for large-scale punching machine post rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102314296A CN101428296B (en) | 2008-12-08 | 2008-12-08 | Pre-rotation apparatus for large-scale punching machine post rod |
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| Publication Number | Publication Date |
|---|---|
| CN101428296A CN101428296A (en) | 2009-05-13 |
| CN101428296B true CN101428296B (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102314296A Expired - Fee Related CN101428296B (en) | 2008-12-08 | 2008-12-08 | Pre-rotation apparatus for large-scale punching machine post rod |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941020B (en) * | 2009-07-07 | 2012-04-25 | 邵阳市通达汽车零部件制造有限公司 | Piston rod finish-rolling device and processing process thereof |
| CN102310081A (en) * | 2011-07-23 | 2012-01-11 | 烟台鲁宝钢管有限责任公司 | Ejection rod installation and removal device |
| KR101779334B1 (en) * | 2015-12-29 | 2017-09-19 | 주식회사 성우하이텍 | Roll forming device for forming variable thickness plate |
| CN108555026B (en) * | 2018-05-15 | 2023-05-23 | 浙江辛子精工机械股份有限公司 | Ejector rod pre-rotation high-precision perforating machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062311A (en) * | 1990-12-15 | 1992-07-01 | 冶金工业部重庆钢铁设计研究院 | Limiting and clamping device of mandrel for inclined rolling on tube-rolling mill |
| CN2164928Y (en) * | 1993-05-23 | 1994-05-18 | 申宗海 | Three-roll screw cold mill |
| CN2827568Y (en) * | 2005-07-16 | 2006-10-18 | 烟台鲁宝钢管有限责任公司 | Rod lifting device in limiting trolley |
| CN101077503A (en) * | 2007-07-02 | 2007-11-28 | 沈阳东方钢铁有限公司 | Method for producing large-sized seamless pipeline tube |
| CN101214500A (en) * | 2007-12-28 | 2008-07-09 | 太原重型机械集团有限公司 | Tube-rolling machine core rod hydraulic restraint device |
-
2008
- 2008-12-08 CN CN2008102314296A patent/CN101428296B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062311A (en) * | 1990-12-15 | 1992-07-01 | 冶金工业部重庆钢铁设计研究院 | Limiting and clamping device of mandrel for inclined rolling on tube-rolling mill |
| CN2164928Y (en) * | 1993-05-23 | 1994-05-18 | 申宗海 | Three-roll screw cold mill |
| CN2827568Y (en) * | 2005-07-16 | 2006-10-18 | 烟台鲁宝钢管有限责任公司 | Rod lifting device in limiting trolley |
| CN101077503A (en) * | 2007-07-02 | 2007-11-28 | 沈阳东方钢铁有限公司 | Method for producing large-sized seamless pipeline tube |
| CN101214500A (en) * | 2007-12-28 | 2008-07-09 | 太原重型机械集团有限公司 | Tube-rolling machine core rod hydraulic restraint device |
Non-Patent Citations (8)
| Title |
|---|
| 严泽生.胡缛卓.限动芯棒连轧工艺综述.天津冶金 S1.1999,(S1),1-4. * |
| 严泽生。胡缛卓.限动芯棒连轧工艺综述.天津冶金 S1.1999,(S1),1-4. |
| 徐国荣，张铮.新型大直径无缝钢管均整机设计.江苏冶金36 3.2008,36(3),67-69. |
| 徐国荣,张铮.新型大直径无缝钢管均整机设计.江苏冶金36 3.2008,36(3),67-69. * |
| 赵铁琳.一种新型的Assel轧管机前台结构.山西冶金 2.2007,(2),49-50. |
| 赵铁琳.一种新型的Assel轧管机前台结构.山西冶金 2.2007,(2),49-50. * |
| 陈峰.Φ140-Assel轧管机的新型前台装置.重型机械 3.2005,(3),11-12. |
| 陈峰.Φ140-Assel轧管机的新型前台装置.重型机械 3.2005,(3),11-12. * |
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Granted publication date: 20100609 Termination date: 20211208 |