CN102189105A - Pearson's hot rolling machine or machine set and operation method thereof - Google Patents
Pearson's hot rolling machine or machine set and operation method thereof Download PDFInfo
- Publication number
- CN102189105A CN102189105A CN2011100312118A CN201110031211A CN102189105A CN 102189105 A CN102189105 A CN 102189105A CN 2011100312118 A CN2011100312118 A CN 2011100312118A CN 201110031211 A CN201110031211 A CN 201110031211A CN 102189105 A CN102189105 A CN 102189105A
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- CN
- China
- Prior art keywords
- roller mill
- pilger
- exerting pressure
- forcing press
- hot
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000005098 hot rolling Methods 0.000 title abstract 3
- 238000005096 rolling process Methods 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 238000003801 milling Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a Pearson's hot rolling machine or a machine set and an operation method thereof. The Pearson's hot rolling machine or the machine set comprises at least one pair of rollers (5, 6) arranged in the shell (7) of the rolling machine and also comprises a press (16) for applying pressure, wherein the press (16) for applying pressure is arranged at the inlet side of the shell (7) of the rolling machine.
Description
Technical field
The present invention relates to a kind of hot Pilger roller mill unit or hot Pilger roller mill and a kind of method of operating hot Pilger roller mill.
Background technology
Hot Pilger rolling is extensively known, and for example at DE2951264C2, introduces among DE4313648A1 and the EP0472253A2.In this case, hollow block is by the feeding equipment that cooperatively interacts and reciprocal roll and by rolling, the axle that is set at hollow block inside by feeding equipment is moved by rights, and back and forth roll comprises corresponding groove.Material utilizes reciprocal roll quilt rolling step by step in groove, back and forth the direction of rotation of roll is opposite with the rolling direction, promptly realizes rolling by moving forward and backward the also further guiding material of material by a pair of rotating roll.When the rolling process began, the Pilger axle need be set at pending hollow block inside and at least a portion hollow block is compressed against on the axle.
Summary of the invention
The objective of the invention is in hot Pilger roller mill or hot Pilger roller mill unit (hot pilger rolling mill train) in minimize temperature loss on the hollow block, hot Pilger roller mill or hot Pilger roller mill unit have the forcing press (pressing on press) of exerting pressure and are arranged at least one pair of roll in the roller mill housing.
In order to achieve this end, the present invention proposes a kind of hot Pilger roller mill or hot Pilger roller mill unit, comprises the forcing press of exerting pressure that is arranged at least one pair of roll in the roller mill housing and is arranged on the entrance side of described roller mill housing.The forcing press of exerting pressure is set directly at roller mill housing entrance side, the haulage time of hot hollow block from the forcing press of exerting pressure to the Pilger roller mill is reduced to minimum, so temperature loss can be minimized accordingly also.In this case, self-evidently be-concrete enforcement-hollow block of depending on concrete technique change and space embodiment can be accepted from the short transportation route of its position when hot Pilger rolling process begins in the position of the process of exerting pressure, and not depart from the basic invention thinking that minimizes haulage time.Especially, for example avoided, to the required extra path of hot Pilger roller mill, promptly avoided above-mentioned extra path from the forcing press of exerting pressure that separate to be provided with by suitably the forcing press of exerting pressure being arranged in the zone of ingress path that hollow block enters hot Pilger roller mill.
The invention allows for the corresponding method that is used to operate hot Pilger roller mill, it is characterized in that hollow block to be processed is placed in when initial in the corresponding roller mill housing, described then hollow block is compressed against on the Pilger axle by the forcing press of exerting pressure, and in after implement hot Pilger rolling process.
Than the process of at first exerting pressure and after the hollow block that will handle place the prior art of roller mill housing or roller mill inside, the process of exerting pressure is just enforcement in the hollow block that will handle has placed the roller mill housing.
Like this, self-evidently be-if applicable-hollow block still can be moved in the roller mill housing, thereby finally to be directed between the reciprocal roll even promptly after the process of exerting pressure.What can also understand is that hollow block needn't directly be placed in the roller mill housing, but what can expect is, can directly and apace be transported to reciprocal roll (for example by corresponding feeding equipment self) subsequently as long as after the process of exerting pressure is implemented, can guarantee hollow block, the short distance of hollow block can being setovered makes it be arranged in the outside of roller mill housing.
Depend on concrete technique change, in the time of in hollow block is set at the roller mill machine unit shell or in the working range of the forcing press of exerting pressure, the Pilger axle can be set at hollow block inside.Yet, be understandable that in the working range of the forcing press that at first hollow block is arranged on the roller mill enclosure interior or exerts pressure, thereby subsequently the Pilger axle inserted hollow block.
What pressure preferably was applied in hollow block is being the front of reference with the rolling direction.In hot Pilger rolling process, determine be-particularly be independent of other features of the present invention-compare with hot Pilger roll milling technology according to the present situation of this area, above-mentioned feature can realize much better initial rolling condition.
The latter's situation is, particularly, if the forcing press of exerting pressure is characterised in that at least one pressure jaw and has axial die mould, just making to provide corresponding profile to hollow block during the process of exerting pressure, and wherein said profile has been simplified initial rolling and also cause better roll effect in initial rolling scope.In this respect, be understandable that if corresponding axially die mould is set, the forcing press of exerting pressure of so hot Pilger roller mill unit also is favourable under the situation of other features of the present invention being independent of at least one of pressure jaw.
In this article, term " axially " refers to when hollow block is set in the forcing press of exerting pressure in the expection mode, the direction that the main shaft that is parallel to this hollow block in the forcing press of exerting pressure extends.
Correspondingly, term " entrance side " and " outlet side " refer to such direction, and it is moved by feeding equipment along above-mentioned direction during hollow block moves through hot Pilger roller mill.Although Pilger rolling process mainly shows as forward and motion backward, it also comprises the main direction of motion that is superimposed in the actual oscillating motion.
As what be provided with above, the working range of feeding equipment is interior can be reduced to minimum from the forcing press of exerting pressure to the temperature loss the delivery period of reciprocal roll at hollow block thereby the forcing press of exerting pressure can preferably be set at.
Like this, be understandable that the Pilger axle needn't be connected in feeding equipment during the process of exerting pressure.This connection can produce or follow closely the process of exerting pressure and produce after finishing during the process of for example exerting pressure.
Basically, feeding equipment is simple vertically conveyer, it has special design and is suitable for Pilger rolling process, if the forcing press of exerting pressure like this is set on the inside of leading to the roller mill housing or the outside vertical conveyer, advantage of the present invention also can be implemented to a great extent.So also guaranteed the quick transportation of hollow block, stoped temperature loss with this to actual roller mill.Be independent of other features of the present invention, be also contemplated that thus, the forcing press of exerting pressure is arranged on corresponding vertical conveyer of roller mill housing outlet side and before the Pilger rolling process of reality begins, earlier with rolling side in the opposite direction with in the hollow block draw roll milling train housing.
On the other hand, verified the forcing press of exerting pressure is arranged on entrance side, particularly be arranged on the roller mill housing from one's body, can save time and save the space.Especially, can reduce shell structure so therefore also reduce cost effectively greatly.
Be easy to learn that the hollow block after the processing need peel off from the Pilger axle after hot Pilger rolling process, wherein this needs the concrete rolling process of certain peeling force-depend on.According to prior art, this is by independently stripper realization, and hollow block need be transported to stripper after coming out from hot Pilger roller mill unit.Be independent of other features of the present invention, correspondingly also advantageously, in the zone of leading to roller mill enclosure interior or outside vertical conveyer, especially in the working range of the feeding equipment of hot Pilger roller mill, the stripper of hot Pilger roller mill is set.Especially, such stripper can be arranged on the roller mill housing from and utilize the driving of vertical conveyer on one's body, and for example the existing mobility of feeding equipment realizes stripping process.
Be independent of other features of the present invention, also advantageously, the forcing press of exerting pressure in hot Pilger roller mill or the hot Pilger roller mill unit comprises stripping system, and this stripping system absorbs the reaction force of vertical conveyer or feeding equipment to be used for stripping process.For example when by feeding equipment with the Pilger axle when hollow block is peeled off, hollow block can be pressed against stripping system.On the other hand, that can expect is, thereby when hollow block is carried by different vertical conveyers and therefore move the realization stripping process, the Pilger axle self is pressed against on the corresponding stripping system.Yet the process of describing is particularly preferably earlier, because feeding equipment has been connected to the Pilger axle and directly allow corresponding lengthwise movement to be used for stripping process.
If the forcing press of exerting pressure self comprises stripping system, so whole setting has useful especially structure design.Especially, can realize that forcing press self comprises stripping system by corresponding stripping system is set at least one pressure jaw of the forcing press of exerting pressure.Therefore respective areas of contact is preferably hardened, and wherein described at least pressure jaw is preferably hardened, and particularly is pressed against the zone of hollow block during the process of exerting pressure.Therefore, a kind of like this stripping system can directly be realized on the forcing press of exerting pressure and not need significant extra cost.
On at least one pressure jaw, stripping system is set special advantage is provided, promptly in order to implement stripping process, this stripping system can be introduced in the transportation route of hollow block, and be removed again afterwards, so that under the situation that does not need extra structural measure, do not damage further processing.
The pressure jaw preferably is supported on the forcing press of exerting pressure by axial thrust bearing, and peeling force can easily be applied in the framework of forcing press of pressure or the roller mill housing of hot Pilger roller mill absorbs like this.
Be also contemplated that especially, in cold Pilger roller mill, also can advantageously utilize forcing press and the above-mentioned setting of stripper and the above-mentioned modification of method of exerting pressure.But in this case, what need consideration is that different essential processes occur in the cold Pilger roller mill, makes and can anticipate different problems basically in this case.In this article, should be emphasized that hot Pilger rolling process implements more than the recrystallization temperature of pending material, and cold Pilger rolling process is being lower than this temperature, particularly implements with room temperature.Being also contemplated that the setting and the corresponding treatment step of above-described forcing press of exerting pressure and stripper, also is useful in other rollings are handled, and has used the axle that is arranged in the hollow block in other rolls are handled.
Next other advantage of the present invention, target and characteristic describe with reference to an embodiment, especially, and in conjunction with accompanying drawing accordingly.
Description of drawings
Fig. 1 shows the schematic side view of hot Pilger roller mill unit or hot Pilger roller mill;
Fig. 2 shows the front view of arrow II in Fig. 1 of the device of exerting pressure among Fig. 1.
The specific embodiment
Hot Pilger roller mill unit (1) shown in the figure comprises hot Pilger roller mill (2) on the one hand, comprises the device (3) and the stripper (4) of exerting pressure on the other hand.
In this under situation, hot Pilger roller mill (2) comprises traditionally by corresponding back and forth roller sliding base (8,9) be supported on two reciprocal rolls (5,6) on the roller mill housing (7), make these two rolls radially (i.e. vertical direction in the present embodiment) move.
Hot Pilger roller mill (2) also comprises feeding equipment (10), its by axle lock (11) reach to the Pilger axle (12) that is provided with and can be axially backward and forward (moving direction 23) move this Pilger axle.
The Pilger axle (12) that can be set at hollow block (14) goes up being used for hot Pilger rolling process, and correspondingly is movable in a reciprocal manner by described reciprocal roll (5,6).
In this exemplary embodiment, also being positioned at entrance side on the Pilger axle (12) between axle lock (11) and the hollow block (14) provides Pierre's lattice ring (15).
The device of exerting pressure (3) comprises the forcing press (16) of exerting pressure, and it is set at the entrance side on the roller mill housing (7).This forcing press of exerting pressure (16) comprises that being arranged on hollow block (14) passes through path (19) upside of hot Pilger roller mill (2) and two pressure jaws (17,18) of downside.Described pressure jaw is opened respectively and exerts pressure by hydraulic cylinder (20,21), wherein is arranged on the following pressure jaw (18) in path (19) and interacts by bar assembly (22) and corresponding hydraulic cylinder (21).The corresponding mobile direction of pressure jaw (17,18) is indicated by arrow (23,24).
Stripper (4) is included in outlet side and is arranged on two stripping systems (25,26) on the pressure jaw (17,18), and it can pass through thrust bearing (27,28) peeling force is incorporated in the roller mill housing (7), and feeding equipment (10).In order to implement stripping process, feeding equipment (10) is moved enough far along the direction of reciprocal roll (5,6), makes Pierre's lattice ring (15) lean against on the outlet side of stripping system (25,26).Pressure jaw (17,18) is closed (moving direction 24) fully afterwards, makes stripping system (25,26) axially be arranged on the entrance side of Pierre's lattice ring (15).Feeding equipment (10) can be moved so that Pierre's lattice ring (15) is pressed against on the stripping system (25,26) of pressure jaw (17,18) now, and therefore be pressed against described thrust bearing (27,28) thus go up and realize described stripping process.Depend on concrete enforcement, stripping process can also be implemented in the mode that stripping system (25,26) directly act on hollow block (14).
In this exemplary embodiment, pressure jaw (17,18) has die mould (29,30) respectively, therefore in the process of exerting pressure as shown in Figure 1, makes the entrance side of hollow block (14) have corresponding die mould.This can significantly improve the result of rolling than the state of the art.
Especially, owing to described device of exerting pressure (3) directly is arranged on the roller mill housing (7) at entrance side, so above-mentioned process of exerting pressure is possible.Aspect this, hollow block (14) only needs to be moved in the zone that enters the device (3) of exerting pressure, and Pilger axle (12) need be inserted into.For this purpose, hollow block (14) need not accurately be provided with the path (19) of passing through hot Pilger roller mill (2) earlier coaxially.Especially, hollow block can also be set at the position of inclination a little.
Yet the device of exerting pressure (3) is alignment by this way preferably, promptly just is implemented when hollow block (14) is placed in the process of exerting pressure when go up in path (19).In this, Pilger axle (12) can be connected to feeding equipment (10) by axle lock (11) earlier especially.
When the process of exerting pressure has been implemented and pressure jaw (17,18) when opening (moving direction 23) once more, feeding equipment (10) just begins its feeding procedure and hot Pilger rolling process just can begin.
After the rolling process, stripping process can be implemented by stripper (4) in the above described manner.
Reference numerals list
1 Re Pierge roller mill unit
2 Re Pierge roller mills
3 devices of exerting pressure
4 strippers
5 reciprocal rolls
6 reciprocal rolls
7 roller mill housings
8 reciprocal roller sliding base
9 reciprocal roller sliding base
10 feeding equipments
11 axles lock
12 Pilger axles
The moving direction of 13 Pilger axles 12 and feeding equipment 10
14 hollow blocks
15 Pierre's lattice rings
16 forcing presses of exerting pressure
17 pressure jaws
18 pressure jaws
The path of 19 hollow blocks 14
20 hydraulic cylinders
21 hydraulic cylinders
22 bar assemblies
23 open moving direction
24 moving directions of exerting pressure
25 stripping systems
26 stripping systems
27 thrust bearings
28 thrust bearings
29 die moulds
30 die moulds.
Claims (11)
1. a hot Pilger roller mill unit (1), has at least one pair of roll (5 that is arranged in the roller mill housing (7), 6) and have a forcing press (16) of exerting pressure, it is characterized in that described forcing press of exerting pressure (16) is set at the entrance side of described roller mill housing (7).
2. a hot Pilger roller mill (2), has at least one pair of roll (5 that is arranged in the roller mill housing (7), 6) and have a forcing press (16) of exerting pressure, it is characterized in that described forcing press of exerting pressure (16) is set on the described roller mill housing (7) at entrance side.
3. hot Pilger roller mill unit according to claim 1 and 2 or hot Pilger roller mill is characterized in that, described forcing press of exerting pressure (16) comprises that at least one has the pressure jaw (17,18) of axial die mould (29,30).
4. according to each described hot Pilger roller mill unit or hot Pilger roller mill among the claim 1-3, it is characterized in that described forcing press of exerting pressure (16) comprises stripping system (25,26).
5. hot Pilger roller mill unit according to claim 4 or hot Pilger roller mill is characterized in that, described stripping system (25,26) is set at least one pressure jaw (17,18) of the forcing press (16) of exerting pressure.
6. according to each described hot Pilger roller mill unit or hot Pilger roller mill among the claim 1-5, it is characterized in that described pressure jaw (17,18) is supported on the forcing press (16) of exerting pressure by axial thrust bearing (27,28).
7. according to each described hot Pilger roller mill unit or hot Pilger roller mill among the claim 1-6, it is characterized in that, feeding equipment (10) and a pair roller (5,6) cooperation and driving Pilger axle (12), wherein said forcing press of exerting pressure (16) is set in the working range of feeding equipment (10).
8. according to each described hot Pilger roller mill unit or hot Pilger roller mill among the claim 1-7, it is characterized in that, comprise vertical conveyer, this vertical conveyer leads to the inside or the outside of described roller mill housing (7), and described forcing press of exerting pressure (16) is arranged on this vertical conveyer.
9. an operation has the method for the hot Pilger roller mill (2) of roller mill housing (7), it is characterized in that, hollow block to be processed (14) is set in the roller mill housing (7), described then hollow block (14) is compressed against on the Pilger axle (12) by the forcing press (16) of exerting pressure, and in after implement hot Pilger rolling process.
10. method according to claim 9 is characterized in that, described hollow block (14) is applied in pressure in the front that with the rolling direction is reference.
11. according to claim 9 or 10 described methods, it is characterized in that, by the feeding equipment (10) of described forcing press of exerting pressure (16) and described Pilger axle (12), after Pilger rolling process, described Pilger axle (12) is peeled off from described hollow block (14).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010006373.8 | 2010-01-29 | ||
| DE102010006373 | 2010-01-29 | ||
| DE102010025028.7 | 2010-06-24 | ||
| DE102010025028A DE102010025028A1 (en) | 2010-01-29 | 2010-06-24 | Hot pilger rolling mill or hot pilger rolling mill and method for operating a hot pilger rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102189105A true CN102189105A (en) | 2011-09-21 |
Family
ID=44178371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100312118A Pending CN102189105A (en) | 2010-01-29 | 2011-01-28 | Pearson's hot rolling machine or machine set and operation method thereof |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2359946A2 (en) |
| CN (1) | CN102189105A (en) |
| BR (1) | BRPI1100625A2 (en) |
| DE (1) | DE102010025028A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406469A (en) * | 2013-08-30 | 2013-11-27 | 太原重工股份有限公司 | Ejector rod take-off device |
| CN104781020A (en) * | 2012-09-14 | 2015-07-15 | 山特维克原料技术德国公开股份有限公司 | Pilger rolling train |
| CN107377662A (en) * | 2016-04-01 | 2017-11-24 | Sms集团股份有限公司 | The manufacture method and system and centrifugally cast pipe and respective application of seamless hot-finished tube |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU155159A (en) * | 1964-10-21 | |||
| FR2110332A1 (en) * | 1970-10-09 | 1972-06-02 | Diosgyoeri Gepgyar | Seamless tube mfg. - process and appts. for rapid prodn. |
| DE2951264C2 (en) | 1979-12-17 | 1981-11-19 | Mannesmann AG, 4000 Düsseldorf | Equipment at hot pilger mills for rolling seamless tubes |
| DE4026898C1 (en) | 1990-08-23 | 1991-05-02 | Mannesmann Ag, 4000 Duesseldorf, De | |
| DE4313648C2 (en) | 1993-04-21 | 1997-10-09 | Mannesmann Ag | Method and device for producing seamless tubes by pressure rolling |
-
2010
- 2010-06-24 DE DE102010025028A patent/DE102010025028A1/en not_active Ceased
-
2011
- 2011-01-14 EP EP20110000264 patent/EP2359946A2/en not_active Withdrawn
- 2011-01-28 BR BRPI1100625 patent/BRPI1100625A2/en not_active IP Right Cessation
- 2011-01-28 CN CN2011100312118A patent/CN102189105A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781020A (en) * | 2012-09-14 | 2015-07-15 | 山特维克原料技术德国公开股份有限公司 | Pilger rolling train |
| CN104781020B (en) * | 2012-09-14 | 2017-05-10 | 山特维克原料技术德国公开股份有限公司 | Pilger rolling train |
| CN103406469A (en) * | 2013-08-30 | 2013-11-27 | 太原重工股份有限公司 | Ejector rod take-off device |
| CN103406469B (en) * | 2013-08-30 | 2015-09-30 | 太原重工股份有限公司 | Device deviate from by push rod |
| CN107377662A (en) * | 2016-04-01 | 2017-11-24 | Sms集团股份有限公司 | The manufacture method and system and centrifugally cast pipe and respective application of seamless hot-finished tube |
| CN107377662B (en) * | 2016-04-01 | 2019-10-18 | Sms集团股份有限公司 | The application of the manufacturing method and manufacture system of seamless hot-finished tube and the centrifugally cast pipe of rolling and the hollow block manufactured by centrifugal casting |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2359946A2 (en) | 2011-08-24 |
| BRPI1100625A2 (en) | 2013-04-30 |
| DE102010025028A1 (en) | 2011-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110921 |