CN102873111B - Feeding system of hot pilger mill - Google Patents
Feeding system of hot pilger mill Download PDFInfo
- Publication number
- CN102873111B CN102873111B CN201210367081.XA CN201210367081A CN102873111B CN 102873111 B CN102873111 B CN 102873111B CN 201210367081 A CN201210367081 A CN 201210367081A CN 102873111 B CN102873111 B CN 102873111B
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- China
- Prior art keywords
- hydraulic cylinder
- conveyer
- feed system
- piston rod
- retainer
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- Expired - Fee Related
Links
- 230000008859 change Effects 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 28
- 230000003139 buffering effect Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005242 forging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009785 tube rolling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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- Actuator (AREA)
Abstract
A feeding system of a hot pilger mill comprises a support platform, a conveyer, a feeder and a feeding hydraulic cylinder, wherein the conveyer is erected on the support platform, and the feeding hydraulic cylinder is arranged on the conveyer and drives the conveyer to slide on the support platform. The feeding system of the hot pilger mill is characterized by further comprising an adjustable stopping device and a contact buffer portion, the adjustable stopping device comprises a drive portion and a stopping portion, the stopping portion moves along the sliding direction of the conveyer under the drive action of the drive portion, the contact buffer portion is connected with the conveyer and is positioned in the rear of the stopping portion all the time, and when contacting with the stopping portion, the contact buffer portion sends signals to the feeding hydraulic cylinder to enable the feeding hydraulic cylinder to change internal pressure, so that the conveyer slows down or stops.
Description
Technical field
The present invention is relevant with hot Pilger machine, particularly the feed system of hot pilgrim rolling machine.
Background technology
The tube rolling of hot pilgrim rolling machine is sent action to and is completed by its feed system, feed system mainly comprises conveyer, feeder, feeds hydraulic cylinder, feeder and hydraulic cylinder are arranged on conveyer, drive conveyer motion by the pressure in hydraulic cylinder.Send action to and be roughly divided into three steps:
1, send to fast: when packing into after feeder with the hollow forging of plug, conveyer advances fast with feeder, until heat pipe is sent into inlet of rolling mill guide groove, wait for rolling.
2, rolling is sent to: after rolling starts, the speed that conveyer enters with work with feeder is delivered to milling train by hollow forging and is rolled
3, de-rod returns: after rolling finishes, conveyer clamps plug with feeder and retreats, and departs from pipe, is back to material level and waits for material loading, and new one takes turns action restarts.
The whole pressure-driven of process by hydraulic cylinder of feeding, send to or return, but in-cylinder pressure fluctuation, fluid contraction, pipe-line system change and make the feed of conveyer be difficult to control with the control valve of high inertia system, if the unstable meeting of feed influence of rolled quality greatly.
Summary of the invention
The object of the present invention is to provide a kind of feed system of hot pilgrim rolling machine, to control the feed of conveyer, make it need to carry out sending to of tube rolling according to rolling, improve rolling quality.
The feed system of hot pilgrim rolling machine of the present invention, comprise support stand, conveyer, feeder and feed hydraulic cylinder, described conveyer is set up on described support stand, described in being provided with, described conveyer feeds hydraulic cylinder, and on described support stand, slide under described driving of feeding hydraulic cylinder, described feed system also comprises adjustable stop device and contact buffer part, described adjustable stop device comprises driving section and retainer, described retainer glide direction along described conveyer under the gearing of described driving section moves, described contact buffer part is connected with described conveyer, described contact buffer part is positioned at the rear of described retainer all the time, in the time that described contact buffer part contacts with described retainer, described contact buffer part is to the described hydraulic cylinder transmitted signal of feeding, described in making, feed hydraulic cylinder and change internal pressure, make described conveyer slow down or stop.
Beneficial effect of the present invention is, the feed system of hot pilgrim rolling machine of the present invention can be controlled the feed of hollow billet by adjustable stop device, hollow billet is sent to by certain needs, send requirement to meet rolling, and can not fed as prior art the impact of hydraulic cylinder self, cannot accurately send influence of rolled effect to.
Brief description of the drawings
Fig. 1 is that the master of the feed system of hot pilgrim rolling machine of the present invention looks schematic diagram.
Fig. 2 is the schematic top plan view of the feed system of hot pilgrim rolling machine in Fig. 1.
Fig. 3 is A place enlarged diagram in Fig. 1.
Fig. 4 is the cutaway view along B-B line in Fig. 1.
Fig. 5 is that the master of the adjustable stop device of feed system of the present invention looks schematic diagram.
Fig. 6 is the schematic top plan view of the adjustable stop device of feed system of the present invention.
Fig. 7 is the schematic diagram of the driving section of feed system of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the present invention, is not limited to the present invention.
As shown in Fig. 1,2,4, the feed system of the hot pilgrim rolling machine of the present embodiment mainly comprises support stand 10, conveyer 20, feeder 30, feeds hydraulic cylinder 40, buffering hydraulic cylinder 50 and adjustable stop device 60.Support stand 10 is fixed on a working foundation or ground (not shown), conveyer 20 is set up on support stand 10, and can on support stand 10, slide via the first slide plate 11, second slide plate 12 of the longitudinal setting along support stand 10, between the below of conveyer 20 and support stand 10, there is an activity space S.The both sides of conveyer 20 are respectively provided with one and feed hydraulic cylinder 40, for by internal piston bar (not shown), the telescopic drive conveyer 20 in cylinder body slides.Feeder 30 is arranged on conveyer 20, and its front end is supported the hollow billet (not shown) being positioned on support stand 10, and in the time that conveyer 20 slides, hollow billet is promoted by feeder 30.Due to conveyer, feeder, feed hydraulic cylinder and be existing apparatus, therefore at this, it is not described in detail.
In the present embodiment, be welded with fixed head 13 in the below of conveyer 20, fixed head 13 is positioned at activity space S, and two second perforation 15 of offering of the first perforation 14, the first perforation 14 both sides symmetries are offered at the middle part of fixed head 13.Buffering hydraulic cylinder 50 is for example existing single-action hydraulic cylinder, comprises piston rod 51 and cylinder body 52.The external diameter of piston rod 51 is slightly less than the aperture of the second perforation 15.One end of cylinder body 52 has flange face 53, and cylinder body 52 is fixed on a side of fixed head 13 via flange face 53, and piston rod 51 stretches in the second perforation 15.
Adjustable stop device 60 comprises driving section and retainer 61.As shown in Figure 7, driving section comprises motor 62, reductor 63 and screw rod 64.Motor 62 is fixed on working foundation or ground (not shown), and reductor 63 is fixed on support stand 10, motor 62 and reductor 63 by Hooks coupling universal coupling 65 be suitable angle, position is connected, and the two can be arranged relatively flexibly.Reductor 63 is for example existing worm-gear speed reducer, and it comprises worm screw 631 and worm gear 632.Worm screw 631 is connected with the output of motor 62 via Hooks coupling universal coupling 65, and produces Worm Wheel System with worm gear 632.Worm gear 632 has internal thread through hole 633, screw rod 64 is through in internal thread through hole 633, its external screw thread 641 engages with the internal thread of internal thread through hole 633, prevent that by a rotation-preventing mechanism screw rod 64 from rotating with respect to worm gear 632, therefore,, in the time that worm gear 632 rotates, screw rod 64 axially carries out rectilinear motion along worm gear 632,, rotatablely moving of worm gear 632 changed into screw rod 64 seesawing along rolling direction by reductor.Screw rod 64 is through the first perforation 14, the front portion of screw rod 64 can be provided with the first support wheel 66, support stand 10 is provided with the second support wheel 67 in the position at corresponding screw rod 64 rear portions, makes screw rod 64 stable operation under the supporting role of the first support wheel 66 and the second support wheel 67.Preferably, also screw rod 64 can be divided into many, and be connected with shaft coupling 68, so that install.As shown in Figure 5,6, the front end of screw rod 64 is fixed with retainer 61, and it has stop surface 611.Retainer 61 seesaws with screw rod 64.
Below the course of work of feed system of the present invention is elaborated.
As shown in Figure 1, D1 is initial position, and conveyer 20 is prepared to enter the stage of sending to fast in this position.Now, buffering hydraulic cylinder 50 is in D1 position, and before retainer 61 is positioned at buffering hydraulic cylinder 50, for example, is positioned at the position to be rolled of D2.
Feeding under the driving of hydraulic cylinder 40, conveyer 20 is shifted to D2 from D1, sends fast process to.In the time that buffering hydraulic cylinder 50 moves to D2, piston rod 51 collides with the stop surface 611 of the retainer 61 in front, and drawn back a little, making its retraction cylinder body 52 parts, cylinder body 52 internal liquids are exerted pressure to the part piston rod of retraction immediately, by its ejection outside cylinder body, avoid piston rod 51 to continue in retraction cylinder body, provide buffering to the retraction action of piston rod 51, thereby prevent due in the complete retraction cylinder body 52 of piston rod 51, cause fixed head 13 and stop surface 611 direct collisions, avoid causing damage.Be preferably, piston rod 51 is 50mm from fixed head 13 extent of the protrusion, guarantees in the complete retraction cylinder body of piston rod 51 meeting.Thus, make conveyer 20 stop at exactly the position to be rolled of D2, now, hollow billet is waited for rolling.
Buffering hydraulic cylinder 50 is also connected with pressure sensor device (not shown), when part piston rod 51 is pushed in cylinder body, while causing pressure in buffering hydraulic cylinder 50 to change, this pressure sensor device can sense the variation of pressure, and simultaneously to feeding hydraulic cylinder 40 transmitted signals, make Hydraulic Station change the pressure of feeding hydraulic cylinder 40, so that conveyer 20 slows down or stops.
Then Pilger rolling mill practice starts, and conveyer 20 need be shifted to from D2 the rolling end position of D3, and make hollow billet be transported device 20 and advance, and by rolling piecemeal.In this process, make retainer 61 with required speed or displacement reach, according to above-mentioned principle, piston rod 51 is followed the paces reach of retainer 61 all the time, the leading of conveyer 20 is controlled, can transports hollow billet according to required feed, make hollow billet by rolling piecemeal.Finally, retainer 61 is along with buffering hydraulic cylinder 50 stops at D3 place, and rolling mill practice finishes.
In addition, plug is extracted technique startup out.When plug is drawn out after hollow billet, conveyer 20 is retracted D1, and retainer 61 is retracted D2, and above-mentioned cyclic process starts again.
Thus, adjustable stop device 60 can be controlled the feed of hollow billet, and hollow billet is sent to by certain needs, sends requirement to, and can not fed as prior art the impact of hydraulic cylinder self to meet rolling, cannot accurately send influence of rolled effect to.
Preferably, motor 62 can built-in speed encoder (not shown), external position coder (not shown), can accurately control thus rotary speed and the rotating cycle of buffer deceleration machine 63, thereby for retainer 61 provide evenly, accurately, the feed that needs, improve and send precision to, the sending to of more accurate, stable control hollow billet, ensure the accurate feeding increment of each rolling cycle, improve rolling quality.
Certainly, the present invention only describes taking buffering hydraulic cylinder as preferred embodiment, and projection that also can be common substitutes buffering hydraulic cylinder, in the time of the retainer collision in itself and front, to feeding hydraulic cylinder transmitted signal, make conveyer slow down or stop, controlling the feed of conveyer.
Between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (8)
1. the feed system of a hot pilgrim rolling machine, comprise support stand, conveyer, feeder and feed hydraulic cylinder, described conveyer is set up on described support stand, described in being provided with, described conveyer feeds hydraulic cylinder, and on described support stand, slide under described driving of feeding hydraulic cylinder, it is characterized in that, described feed system also comprises adjustable stop device and contact buffer part, described adjustable stop device comprises driving section and retainer, described retainer glide direction along described conveyer under the gearing of described driving section moves, described contact buffer part is connected with described conveyer, described contact buffer part is positioned at the rear of described retainer all the time, in the time that described contact buffer part contacts with described retainer, described contact buffer part is to the described hydraulic cylinder transmitted signal of feeding, described in making, feed hydraulic cylinder and change internal pressure, make described conveyer slow down or stop.
2. feed system according to claim 1, is characterized in that, described contact buffer part comprises buffering hydraulic cylinder and pressure sensor device, and described buffering hydraulic cylinder is single-action hydraulic cylinder, and it comprises piston rod and cylinder body.
3. feed system according to claim 2, it is characterized in that, the below of described conveyer is provided with fixed head, the first perforation is offered at the middle part of described fixed head, described the first perforation both sides symmetry offer two second perforation, the external diameter of described piston rod is less than described biperforate aperture, one end of described cylinder body has flange face, described cylinder body is fixed on a side of described fixed head via described flange face, and described piston rod stretches in described the second perforation.
4. feed system according to claim 3, it is characterized in that, described driving section comprises motor, worm-gear speed reducer and screw rod, described worm-gear speed reducer is fixed on described support stand, described worm-gear speed reducer comprises worm and worm wheel, described worm screw is connected with the output of described motor via Hooks coupling universal coupling, and produce Worm Wheel System with described worm gear, described worm gear has internal thread through hole, described screw rod is through internal thread through hole, the external screw thread of described screw rod engages with the internal thread of described internal thread through hole, described screw rod is through described the first perforation, the front end of described screw rod connects described retainer.
5. feed system according to claim 4, it is characterized in that, in the time that the end of the piston rod of described buffering hydraulic cylinder contacts with described retainer, described in the retraction of described piston rod part in cylinder body, described cylinder interior liquid is exerted pressure to the part piston rod of retraction, by its ejection outside described cylinder body, described cylinder body is not contacted with described retainer.
6. feed system according to claim 5, is characterized in that, when in cylinder body described in the retraction of described piston rod part, described piston rod internal pressure changes, and described pressure sensor device changes for pressure sensor, and to the described hydraulic cylinder transmitted signal of feeding.
7. feed system according to claim 4, is characterized in that, described screw rod is provided with the first support wheel, and described support stand is provided with the second support wheel in the described screw rod of correspondence.
8. feed system according to claim 4, is characterized in that, described electric machine built-in speed encoder, external position coder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367081.XA CN102873111B (en) | 2012-09-27 | 2012-09-27 | Feeding system of hot pilger mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367081.XA CN102873111B (en) | 2012-09-27 | 2012-09-27 | Feeding system of hot pilger mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102873111A CN102873111A (en) | 2013-01-16 |
| CN102873111B true CN102873111B (en) | 2014-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210367081.XA Expired - Fee Related CN102873111B (en) | 2012-09-27 | 2012-09-27 | Feeding system of hot pilger mill |
Country Status (1)
| Country | Link |
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| CN (1) | CN102873111B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433299A (en) * | 2013-08-07 | 2013-12-11 | 常熟市梅李机械制造有限公司 | Automatic tube blank pushing device for tube rolling mill |
| CN106140834B (en) * | 2016-08-18 | 2018-01-05 | 广东科莱博科技有限公司 | A kind of feeding device for milling train |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638466A (en) * | 1968-06-20 | 1972-02-01 | Calmes Jean Paul | Recoil device for a rotary forging mill |
| GB1275820A (en) * | 1969-01-08 | 1972-05-24 | Innocenti Soc Generale | Feed device for pilger rolling mill |
| US4100786A (en) * | 1976-04-22 | 1978-07-18 | Mannesmann Aktiengesellschaft | Feed mechanism for pilger rolling mills |
| CN201511040U (en) * | 2009-09-27 | 2010-06-23 | 太原重工股份有限公司 | Feeder of pilgrim rolling unit |
| CN101862759A (en) * | 2010-05-28 | 2010-10-20 | 扬州诚德钢管有限公司 | Tube blank feeding system of multiroll large-caliber cold pilgering mill |
-
2012
- 2012-09-27 CN CN201210367081.XA patent/CN102873111B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638466A (en) * | 1968-06-20 | 1972-02-01 | Calmes Jean Paul | Recoil device for a rotary forging mill |
| GB1275820A (en) * | 1969-01-08 | 1972-05-24 | Innocenti Soc Generale | Feed device for pilger rolling mill |
| US4100786A (en) * | 1976-04-22 | 1978-07-18 | Mannesmann Aktiengesellschaft | Feed mechanism for pilger rolling mills |
| CN201511040U (en) * | 2009-09-27 | 2010-06-23 | 太原重工股份有限公司 | Feeder of pilgrim rolling unit |
| CN101862759A (en) * | 2010-05-28 | 2010-10-20 | 扬州诚德钢管有限公司 | Tube blank feeding system of multiroll large-caliber cold pilgering mill |
Non-Patent Citations (2)
| Title |
|---|
| "周期轧管机喂料装置的设计";任雁梅等;《中国重型装备》;20111231(第4期);全文 * |
| 任雁梅等."周期轧管机喂料装置的设计".《中国重型装备》.2011,(第4期),第1-4页. |
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| Publication number | Publication date |
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| CN102873111A (en) | 2013-01-16 |
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Granted publication date: 20140903 |