DE10124899B4 - Crystal pulling machine with a lifting device - Google Patents
Crystal pulling machine with a lifting device Download PDFInfo
- Publication number
- DE10124899B4 DE10124899B4 DE2001124899 DE10124899A DE10124899B4 DE 10124899 B4 DE10124899 B4 DE 10124899B4 DE 2001124899 DE2001124899 DE 2001124899 DE 10124899 A DE10124899 A DE 10124899A DE 10124899 B4 DE10124899 B4 DE 10124899B4
- Authority
- DE
- Germany
- Prior art keywords
- load
- take
- crystal
- roll
- lifting device
- 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
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
- B66D1/505—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control electrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
- B66D1/46—Control devices non-automatic electric
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/30—Mechanisms for rotating or moving either the melt or the crystal
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B35/00—Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
Abstract
Kristallziehanlage mit einer Hubeinrichtung mit einer Aufwickelrolle (1) zum Aufwickeln oder Abwickeln eines Tragelementes (3), welches an seinem freien Ende zum Tragen einer Last (7) gestaltet ist und die eine Gewichtsmesseinrichtung zur kontinuierlichen Bestimmung des Gewichtes der Last (7) aufweist, wobei ein durch das Kristallwachstum sich bildender Kristallblock die Last (7) bildet, dadurch gekennzeichnet, dass als Gewichtsmesseinrichtung ein Drehmomentsensor (6) zur Bestimmung des Antriebsmomentes der Aufwickelrolle (1) vorgesehen ist.A crystal puller comprising a lifting device having a take-up roll (1) for winding or unwinding a support member (3) formed at its free end for supporting a load (7) and having a weight measuring device for continuously determining the weight of the load (7), wherein a crystal block forming by the crystal growth forms the load (7), characterized in that a torque sensor (6) for determining the drive torque of the take-up roll (1) is provided as weight measuring means.
Description
Die Erfindung betrifft eine Kristallziehanlage mit einer Hubeinrichtung mit einer Aufwickelrolle zum Aufwickeln oder Abwickeln eines Tragelementes, welches an seinem freien Ende zum Tragen einer Last gestaltet ist und die eine Gewichtsmesseinrichtung zur kontinuierlichen Bestimmung des Gewichtes der Last aufweist, wobei ein durch das Kristallwachstum sich bildender Kristallblock die Last bildet.The invention relates to a crystal pulling system with a lifting device with a take-up reel for winding or unwinding of a support element, which is designed at its free end for carrying a load and having a weight measuring device for continuously determining the weight of the load, wherein a crystal block forming by the crystal growth forms the load.
Das kontinuierliche Messen des Gewichtes einer mit einer Hubeinrichtung höhenverfahrbaren Last ist in der Technik bei sehr unterschiedlichen Anlagen und für die Steuerung unterschiedlicher Verfahren erforderlich. Eine Kristallziehanlage mit einer Hubeinrichtung der vorstehenden Art, mit der ein Kristallblock während des Wachsens der Kristalle angehoben wird, ist beispielsweise in der
Da aufgrund der Gewichtsmessung die Ziehgeschwindigkeit solcher Kristallziehanlagen geregelt wird, ist es erforderlich, das Gewicht des sich bildenden Kristallblockes möglichst genau zu bestimmen. In der Praxis hat sich jedoch gezeigt, dass die bekannte Gewichtsmesseinrichtung nicht ausreichend genau arbeitet. Insbesondere führen bei sich drehendem Hubwerk Antriebsschwingungen und Fliehkräfte zu Messfehlern.Since, due to the weight measurement, the pulling rate of such crystal pullers is controlled, it is necessary to determine the weight of the forming crystal block as accurately as possible. In practice, however, it has been shown that the known weight measuring device does not operate with sufficient accuracy. In particular, when the hoist rotates, drive vibrations and centrifugal forces lead to measurement errors.
Die
Der Erfindung liegt die Aufgabe zugrunde, für eine Kristallziehanlage eine Hubeinrichtung der eingangs genannten Art so auszubilden, dass sich das Gewicht der Last zur Regelung der Ziehgeschwindigkeit möglichst genau überwachen lässt.The invention is based on the object for a crystal pulling a lifting device of the type mentioned in such a way that the weight of the load to control the pulling speed can be monitored as accurately as possible.
Diese Aufgabe wird bei einer gattungsgemäßen Kristallziehanlage dadurch gelöst, dass als Gewichtsmesseinrichtung ein Drehmomentsensor zur Bestimmung des Antriebsmomentes der Aufwickelrolle vorgesehen ist.This object is achieved in a generic crystal pulling system in that a torque sensor for determining the drive torque of the take-up roller is provided as a weight measuring device.
Bei einer solchen Hubeinrichtung ist eine sehr genaue Bestimmung des Gewichtes des Kristallblockes möglich, weil das Messergebnis lediglich durch die Reibung der Aufwickelrolle in ihren Lagern beeinflusst wird und diese Reibung ausreichend genau zu erfassen ist. Auch Antriebsschwingungen und Fliehkräfte bei laufendem Hubwerk führen bei der erfindungsgemäßen Hubeinrichtung nicht zu Messfehlern. Da es sich bei der Last um einen Kristallblock handelt, kann man aus dem Gewicht auf den Durchmesser schließen und deshalb aufgrund der Gewichtsmessung eine Durchmesserregelung ermöglichen.In such a lifting device, a very accurate determination of the weight of the crystal block is possible because the measurement result is only influenced by the friction of the take-up reel in their camps and this friction is sufficiently accurate to detect. Also drive vibrations and centrifugal forces in running hoist do not lead to measurement errors in the lifting device according to the invention. Since the load is a crystal block, one can conclude from the weight on the diameter and therefore allow diameter control due to the weight measurement.
Die Hubeinrichtung ist besonders einfach aufgebaut und ermöglicht eine besonders genaue Bestimmung des Antriebsmomentes und damit zugleich des jeweiligen Gewichtes der Last, wenn der Drehmomentsensor in einer Kupplung zwischen der Aufwickelrolle und einem Aufwickelrollenantrieb integriert ist.The lifting device is particularly simple and allows a particularly accurate determination of the drive torque and thus at the same time the respective weight of the load when the torque sensor is integrated in a coupling between the take-up reel and a take-up reel drive.
Die Erfindung lässt verschiedene Ausführungsformen zu. Zur weiteren Erläuterung ihres Grundprinzips wird nachfolgend auf die Zeichnung Bezug genommen. Diese zeigt schematisch eine Seitenansicht einer Hubvorrichtung für eine Last.The invention allows for various embodiments. To further explain its basic principle, reference is made below to the drawing. This shows schematically a side view of a lifting device for a load.
Dargestellt ist eine Aufwickelrolle
Zum Antrieb der Welle
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Aufwickelrolleup roll
- 22
- Wellewave
- 33
- Tragelementsupporting member
- 44
- AufwickelrollenantriebAufwickelrollenantrieb
- 55
- Kupplungclutch
- 66
- Drehmomentsensortorque sensor
- 77
- Lastload
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001124899 DE10124899B4 (en) | 2001-05-22 | 2001-05-22 | Crystal pulling machine with a lifting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001124899 DE10124899B4 (en) | 2001-05-22 | 2001-05-22 | Crystal pulling machine with a lifting device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10124899A1 DE10124899A1 (en) | 2002-11-28 |
DE10124899B4 true DE10124899B4 (en) | 2013-09-05 |
Family
ID=7685708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2001124899 Expired - Lifetime DE10124899B4 (en) | 2001-05-22 | 2001-05-22 | Crystal pulling machine with a lifting device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10124899B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004027106A1 (en) * | 2004-06-03 | 2005-12-29 | Demag Cranes & Components Gmbh | Hoist with lifting load measuring device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996030729A1 (en) * | 1995-03-27 | 1996-10-03 | Ohkura Electric Co., Ltd. | Apparatus for weighing a grown crystal |
DE19512103C2 (en) * | 1995-04-03 | 1997-06-05 | Rotzler Gmbh Co | Cable winch with operating data acquisition |
EP0781873A2 (en) * | 1995-12-25 | 1997-07-02 | Shin-Etsu Handotai Company Limited | Apparatus for measuring weight of crystal being pulled |
EP0841298A2 (en) * | 1996-11-07 | 1998-05-13 | R. Stahl Fördertechnik GmbH | Control arrangement with detection of the weight of the load |
-
2001
- 2001-05-22 DE DE2001124899 patent/DE10124899B4/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996030729A1 (en) * | 1995-03-27 | 1996-10-03 | Ohkura Electric Co., Ltd. | Apparatus for weighing a grown crystal |
DE19512103C2 (en) * | 1995-04-03 | 1997-06-05 | Rotzler Gmbh Co | Cable winch with operating data acquisition |
EP0781873A2 (en) * | 1995-12-25 | 1997-07-02 | Shin-Etsu Handotai Company Limited | Apparatus for measuring weight of crystal being pulled |
EP0841298A2 (en) * | 1996-11-07 | 1998-05-13 | R. Stahl Fördertechnik GmbH | Control arrangement with detection of the weight of the load |
Also Published As
Publication number | Publication date |
---|---|
DE10124899A1 (en) | 2002-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: CRYSTAL GROWING SYSTEMS GMBH, 35614 ASSLAR, DE |
|
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |
Effective date: 20131206 |
|
R071 | Expiry of right |