EP1013353B1 - Verfahren zum Regeln eines hydraulischen Dreh- und Vorschubantriebes für ein Kaltpilgerwalzwerk - Google Patents
Verfahren zum Regeln eines hydraulischen Dreh- und Vorschubantriebes für ein Kaltpilgerwalzwerk Download PDFInfo
- Publication number
- EP1013353B1 EP1013353B1 EP99250435A EP99250435A EP1013353B1 EP 1013353 B1 EP1013353 B1 EP 1013353B1 EP 99250435 A EP99250435 A EP 99250435A EP 99250435 A EP99250435 A EP 99250435A EP 1013353 B1 EP1013353 B1 EP 1013353B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- controlling
- feeding
- hydraulic motor
- cold pilger
- Prior art date
- 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.)
- Expired - Lifetime
Links
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
- B21B21/06—Devices for revolving work between the steps
- B21B21/065—Devices for revolving work between the steps for reciprocating stands
Definitions
- the invention relates to a method for controlling a hydraulic rotary and Feed drive for a cold pilger rolling mill for the production of tubes in one of a crank mechanism in the rolling direction reciprocable rolling stand, whose Rolling tapered calibrated rollers with alternating direction of rotation over the rolling stock and the pipe temporarily for advancement, depending on the position of the crankshaft and rotate, the rotation and advancement of the tube by means of it attacking drive members associated pressure-medium-controlled Hydromotors done.
- Such a procedure is according to the preamble of claim 1 For example, from document DE-A 19 39914 known.
- Object of the present invention is, starting from a known scheme a hydraulic turn and feed drive equipment for a Cold pilger rolling mill, with which the rotary and feed drive reliable, maintenance-friendly and cost-effective can be realized.
- the invention proposes that the Pressure medium supply of each hydraulic motor is controlled by a proportional valve, the depending on the required way of moving of this hydraulic motor Actuator is opened for a time proportional to this way interval.
- the regulation according to the invention is carried out with an easily comprehensible logic Help of simple components.
- the complicated path control is replaced by the specification of a time interval in which a control valve remains open. This will be a cost-effective solution to the pending problem found at the same time low maintenance and no exceptional requirements to the maintenance staff.
- each drive member or hydraulic motor executed movement measured and stored with a Setpoint is compared, and that on the basis of established deviations Time intervals for the valve opening are corrected.
- the proposed regulation is sufficient because of the reliability and accuracy for the operation of a generic cold pilger rolling mill; with a simple one Control loop can be the cold pilger rolling mill without demanding regulation operate. Errors of the plant can be easily located, because the previously complex Distance control of the servo valves is eliminated.
- 1 denotes a hydraulic motor, via the spur gear 2, 3, 4th a sleeve 6 encompassing the tube 5 rotatably drives, in turn, with the chuck 7 is connected.
- the chuck 7 is equipped with jaws 8, which are connected to the Surface of the tube 5 can be applied and this clamp so that at Actuation of the hydraulic motor 1, the introduced via the transmission 2 to 4 torque is transferred to the tube 5.
- FIG. 2 shows the associated control scheme according to the invention.
- the crank angle ⁇ is measured on the crankshaft.
- a start value ⁇ start is specified externally.
- a proportional valve is opened for the time T.
- the chuck 7 is moved with the rotational speed ⁇ via the hydraulic drive 1, resulting in the rotation angle ⁇ ist during the time interval T.
- Proportional to the difference of the desired rotation angle ⁇ soll and the actual rotation angle ⁇ is a correction value .DELTA.T is calculated for the time interval T, in which the valve remains open.
- the correction value ⁇ T for one computing cycle is set to one Adder switched so that the stored value T for the opening time of Proportional valve is changed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Fluid-Pressure Circuits (AREA)
- Crushing And Grinding (AREA)
Description
- Figur 1
- das Schema eines Drehantriebes für das Rohr, und
- Figur 2
- das zugehörige Regelungsschema.
Claims (2)
- Verfahren zum Regeln eines hydraulischen Dreh- und Vorschubantriebes für ein Kaltpilgerwalzwerk zur Herstellung von Rohren in einem von einem Kurbeltrieb in Walzrichtung hin- und herbewegbaren Walzgerüst, dessen verjüngend kalibrierte Walzen mit wechselndem Drehsinn über dem Walzgut abrollen und das Rohr abhängig von der Stellung der Kurbelwelle zeitweise zum Vorschieben und Drehen freigeben, wobei das Drehen und Vorschieben des Rohres mittels den daran angreifenden Antriebsorganen zugeordneter druckmittelgeregelter Hydromotoren erfolgt,
dadurch gekennzeichnet, dass die Druckmittelzufuhr jedes Hydromotors über ein Proportionalventil geregelt wird, das abhängig von dem geforderten Weg des von diesem Hydromotor bewegten Antriebsorgans für ein diesem Weg proportionales Zeitintervall geöffnet wird. - Verfahren zum Regeln eines hydraulischen Dreh- und Vorschubantriebes nach Anspruch 1,
dadurch gekennzeichnet, dass die von jedem Antriebsorgan oder Hydromotor ausgeführte Bewegung gemessen und mit einem gespeicherten Sollwert verglichen wird, und dass anhand festgestellter Abweichungen die Zeitintervalle für die Ventilöffnung korrigiert werden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19860710 | 1998-12-23 | ||
| DE19860710A DE19860710A1 (de) | 1998-12-23 | 1998-12-23 | Verfahren zum Regeln eines hydraulischen Dreh- und Vorschubantriebes für ein Kaltpilgerwalzwerk |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1013353A2 EP1013353A2 (de) | 2000-06-28 |
| EP1013353A3 EP1013353A3 (de) | 2003-10-29 |
| EP1013353B1 true EP1013353B1 (de) | 2005-02-09 |
Family
ID=7893117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99250435A Expired - Lifetime EP1013353B1 (de) | 1998-12-23 | 1999-12-13 | Verfahren zum Regeln eines hydraulischen Dreh- und Vorschubantriebes für ein Kaltpilgerwalzwerk |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6257040B1 (de) |
| EP (1) | EP1013353B1 (de) |
| JP (1) | JP2000197906A (de) |
| AT (1) | ATE288795T1 (de) |
| DE (2) | DE19860710A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8161786B2 (en) * | 2008-04-15 | 2012-04-24 | Glen Stapleton | Apparatus for feeding and turning tube products into a pilger mill machine |
| EP2258491A1 (de) | 2009-06-04 | 2010-12-08 | Siemens Aktiengesellschaft | Rotationswerkzeug für eine Walzstraße und Verfahren zum Betrieb einer Gieß-Walz-Verbundanlage |
| RU2448788C1 (ru) * | 2010-11-17 | 2012-04-27 | Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") | Стан холодной прокатки труб с наружными продольными ребрами |
| DE102011110939A1 (de) * | 2011-08-17 | 2013-02-21 | Sms Meer Gmbh | Verfahren und Vorrichtung zum Herstellen kalt gepilgerter Rohre |
| DE102012112398B4 (de) * | 2012-12-17 | 2018-05-30 | Sandvik Materials Technology Deutschland Gmbh | Pilgerwalzanlage mit einem Kurbeltrieb |
| CN107199263A (zh) * | 2017-04-27 | 2017-09-26 | 农思宇 | 薄壁钢管弯管机 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1939914C3 (de) * | 1969-08-01 | 1973-11-15 | Mannesmann-Meer Ag, 4050 Moenchengladbach | Einrichtung zum Steuern des hy drauhschen Verdreh und Vorschuban triebes fur Pilgerwalzwerke, insbesondere fur Kaltpilgerwalzwerke |
| US4037444A (en) * | 1977-01-10 | 1977-07-26 | Wean United, Inc. | Shell feed system for a cold pilger mill |
| US4562713A (en) * | 1983-12-14 | 1986-01-07 | Sumitomo Metal Industries, Ltd. | Cold pilger mill |
| DE4234394C1 (de) * | 1992-10-07 | 1993-11-04 | Mannesmann Ag | Vorschubgetriebe fuer ein kaltpilgerwalzwerk |
| US5921128A (en) * | 1996-12-17 | 1999-07-13 | Mannesmann Aktiengesellschaft | Method and apparatus for cold rolling tubes |
-
1998
- 1998-12-23 DE DE19860710A patent/DE19860710A1/de not_active Withdrawn
-
1999
- 1999-12-13 DE DE59911594T patent/DE59911594D1/de not_active Expired - Lifetime
- 1999-12-13 AT AT99250435T patent/ATE288795T1/de not_active IP Right Cessation
- 1999-12-13 EP EP99250435A patent/EP1013353B1/de not_active Expired - Lifetime
- 1999-12-22 JP JP11363651A patent/JP2000197906A/ja active Pending
- 1999-12-23 US US09/471,870 patent/US6257040B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1013353A3 (de) | 2003-10-29 |
| JP2000197906A (ja) | 2000-07-18 |
| DE19860710A1 (de) | 2000-06-29 |
| US6257040B1 (en) | 2001-07-10 |
| ATE288795T1 (de) | 2005-02-15 |
| EP1013353A2 (de) | 2000-06-28 |
| DE59911594D1 (de) | 2005-03-17 |
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