DE10124899A1 - Lifting device used in a crystal pulling arrangement comprises a winding roller for winding and unwinding a support element to support a load and having a torque sensor for continuously determining the driving torque of the winding roller - Google Patents

Lifting device used in a crystal pulling arrangement comprises a winding roller for winding and unwinding a support element to support a load and having a torque sensor for continuously determining the driving torque of the winding roller

Info

Publication number
DE10124899A1
DE10124899A1 DE2001124899 DE10124899A DE10124899A1 DE 10124899 A1 DE10124899 A1 DE 10124899A1 DE 2001124899 DE2001124899 DE 2001124899 DE 10124899 A DE10124899 A DE 10124899A DE 10124899 A1 DE10124899 A1 DE 10124899A1
Authority
DE
Germany
Prior art keywords
winding roller
winding
load
lifting device
support
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.)
Granted
Application number
DE2001124899
Other languages
German (de)
Other versions
DE10124899B4 (en
Inventor
Helmut Kaiser
Winfried Schulmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crystal Growing Systems GmbH
Original Assignee
Crystal Growing Systems GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Crystal Growing Systems GmbH filed Critical Crystal Growing Systems GmbH
Priority to DE2001124899 priority Critical patent/DE10124899B4/en
Publication of DE10124899A1 publication Critical patent/DE10124899A1/en
Application granted granted Critical
Publication of DE10124899B4 publication Critical patent/DE10124899B4/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Lifting device comprises a winding roller (1) for winding and unwinding a support element (3) which is structured at one end to support a load (7) and has a torque sensor (6) for continuously determining the driving torque of the winding roller. Preferred Features: The torque sensor is integrated in a coupling (5) between the winding roller and a winding roller drive (4).

Description

Die Erfindung betrifft eine Hubeinrichtung mit einer Auf­ wickelrolle zum Aufwickeln oder Abwickeln eines Tragele­ mentes, welches an seinem freien Ende zum Tragen einer Last gestaltet ist und die eine Gewichtsmesseinrichtung zur kontinuierlichen Bestimmung des Gewichtes der Last aufweist, insbesondere für eine Kristallziehanlage, bei der der durch das Kristallwachstum sich bildende Kris­ tallblock die Last bildet.The invention relates to a lifting device with a winding roll for winding or unwinding a carrier mentes which at its free end for carrying a Load is designed and a weight measuring device for the continuous determination of the weight of the load has, especially for a crystal pulling plant, at the crystal formed by crystal growth tallblock 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 Hubein­ richtung der vorstehenden Art, mit der in einer Kristall­ ziehanlage ein Kristallblock während des Wachsens der Kristalle angehoben wird, ist beispielsweise in der EP 0 781 873 beschrieben. Zur Gewichtsmessung des Kristall­ blockes wird ein als Seil ausgebildetes Tragelement von der Aufwickelrolle über eine Umlenkrolle geführt, die an einer horizontal ausgerichteten dreieckigen Platte befes­ tigt ist. Die Platte stützt sich ihrerseits nahe ihrer Ecken jeweils über eine Gewichtsmesszelle auf einem ge­ häusefesten Bauteil ab, auf welchem auch die Aufwickel­ rolle ruht.Continuously measuring the weight of one with one Lifting device height-adjustable load is in technology for very different systems and for control different procedures required. A hubein direction of the above type, with that in a crystal pulling a crystal block while growing the Crystals is raised, for example, in the EP 0 781 873. For weight measurement of the crystal blockes is a support element designed as a rope from the take-up reel is guided over a deflecting roller a horizontally aligned triangular plate befes is done. The plate in turn supports itself close to hers Corners each over a weight measuring cell on a ge housing-fixed component, on which also the winding roll rests.

Da aufgrund der Gewichtsmessung die Ziehgeschwindigkeit solcher Kristallziehanlagen geregelt wird, ist es erfor­ derlich, das Gewicht des sich bildenden Kristallblockes möglichst genau zu bestimmen. In der Praxis hat sich je­ doch gezeigt, dass die bekannte Gewichtsmesseinrichtung nicht ausreichend genau arbeitet. Insbesondere führen bei sich drehendem Hubwerk Antriebsschwingungen und Flieh­ kräfte zu Messfehlern.Because of the weight measurement, the pulling speed such crystal pulling systems is regulated, it is required derlich, the weight of the crystal block being formed to determine as precisely as possible. In practice, ever yet shown that the known weight measuring device  does not work with sufficient accuracy. In particular, lead rotating hoist drive vibrations and fleeing forces to measurement errors.

Der Erfindung liegt das Problem zugrunde, eine Hubein­ richtung der eingangs genannten Art so auszubilden, dass sich das Gewicht der Last möglichst genau überwachen lässt.The invention is based on the problem of a hub direction of the type mentioned in such a way that monitor the weight of the load as closely as possible leaves.

Dieses Problem wird erfindungsgemäß dadurch gelöst, dass als Gewichtsmesseinrichtung ein Drehmomentsensor zur Be­ stimmung des Antriebsmomentes der Aufwickelrolle vorgese­ hen ist.This problem is solved according to the invention in that a torque sensor for loading as a weight measuring device tuning the drive torque of the take-up reel hen is.

Bei einer solchen Hubeinrichtung ist eine sehr genaue Be­ stimmung des Gewichtes der Last, beispielsweise eines Kristallblockes, möglich, weil das Messergebnis lediglich durch die Reibung der Aufwickelrolle in ihren Lagern be­ einflusst wird und diese Reibung ausreichend genau zu er­ fassen ist. Auch Antriebsschwingungen und Fliehkräfte bei laufendem Hubwerk führen bei der erfindungsgemäßen Hubeinrichtung nicht zu Messfehlern. Wenn es sich bei der Last um einen Kristallblock handelt, kann man aus dem Ge­ wicht auf den Durchmesser schließen und deshalb aufgrund der Gewichtsmessung eine Durchmesserregelung ermöglichen.With such a lifting device is a very precise loading adjustment of the weight of the load, for example one Crystal block, possible because the measurement result is only due to the friction of the take-up roll in their bearings is influenced and this friction is sufficiently precise is grasped. Also drive vibrations and centrifugal forces running hoist lead in the invention Lifting device does not lead to measuring errors. If it is the Last is a crystal block, you can from Ge important close to the diameter and therefore due allow diameter measurement for weight measurement.

Die Hubeinrichtung ist besonders einfach aufgebaut und ermöglichst eine besonders genaue Bestimmung des An­ triebsmomentes und damit zugleich des jeweiligen Gewich­ tes der Last, wenn der Drehmomentsensor in einer Kupplung zwischen der Aufwickelrolle und einem Aufwickelrol­ lenantrieb integriert ist.The lifting device is particularly simple and enables a particularly precise determination of the type driving moment and thus of the respective weight tes of the load when the torque sensor in a clutch between the take-up roll and a take-up roll lenantrieb is integrated.

Die Erfindung lässt verschiedene Ausführungsformen zu. Zur weiteren Erläuterung ihres Grundprinzips wird nach­ folgend auf die Zeichnung Bezug genommen. Diese zeigt schematisch eine Seitenansicht einer Hubvorrichtung für eine Last.The invention permits various embodiments. To further explain their basic principle, subsequently referred to the drawing. This shows  schematically shows a side view of a lifting device for a burden.

Dargestellt ist eine Aufwickelrolle 1, welche auf einer Welle 2 angeordnet ist. Auf dieser Aufwickelrolle 1 lässt sich ein beispielsweise als Seil ausgebildetes Tragele­ ment 3 mehr oder weniger weit aufwickeln. Dieses Trag­ element 3 trägt eine Last 7, bei der es sich um einen Kristallblock einer Kristallziehanlage handeln kann.A winding roll 1 is shown , which is arranged on a shaft 2 . On this take-up roll 1 , a support element 3, for example a rope, can be wound more or less far. This support element 3 carries a load 7 , which can be a crystal block of a crystal pulling system.

Zum Antrieb der Welle 2 und damit der Aufwickelrolle 1 dient ein Aufwickelrollenantrieb 4, der über eine Kupp­ lung 5 mit der Welle 2 verbunden ist. Wichtig ist hierbei ein Drehmomentsensor 6, der in die Kupplung 5 integriert ist und das jeweilige Drehmoment des Aufwickelrollenan­ triebs 4 zu überwachen vermag. To drive the shaft 2 and thus the take-up reel 1 , a take-up reel drive 4 is used , which is connected to the shaft 2 via a coupling 5 . What is important here is a torque sensor 6 , which is integrated into the clutch 5 and can monitor the respective torque of the winding roller drive 4 .

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11

Aufwickelrolle
up roll

22

Welle
wave

33

Tragelement
supporting member

44

Aufwickelrollenantrieb
Aufwickelrollenantrieb

55

Kupplung
clutch

66

Drehmomentsensor
torque sensor

77

Last
load

Claims (2)

1. Hubeinrichtung mit einer Aufwickelrolle (1) zum Auf­ wickeln oder Abwickeln eines Tragelementes (3), welches an seinem freien Ende zum Tragen einer Last (7) gestaltet ist und die eine Gewichtsmesseinrichtung zur kontinuier­ lichen Bestimmung des Gewichtes der Last (7) aufweist, insbesondere für eine Kristallziehanlage, bei der der durch das Kristallwachstum sich bildende Kristallblock die Last (7) bildet, dadurch gekennzeichnet, dass als Gewichtsmesseinrichtung ein Drehmomentsensor (6) zur Be­ stimmung des Antriebsmomentes der Aufwickelrolle (1) vor­ gesehen ist.1. Lifting device with a winding roller ( 1 ) for winding or unwinding a support element ( 3 ) which is designed at its free end for carrying a load ( 7 ) and which has a weight measuring device for continuously determining the weight of the load ( 7 ) , in particular for a crystal pulling system in which the crystal block formed by the crystal growth forms the load ( 7 ), characterized in that a torque sensor ( 6 ) for determining the drive torque of the winding roller ( 1 ) is seen as a weight measuring device. 2. Hubeinrichtung nach Anspruch 1, dadurch gekennzeich­ net, dass der Drehmomentsensor (6) in einer Kupplung (5) zwischen der Aufwickelrolle (1) und einem Aufwickelrol­ lenantrieb (4) integriert ist.2. Lifting device according to claim 1, characterized in that the torque sensor ( 6 ) in a clutch ( 5 ) between the take-up roll ( 1 ) and a Aufwickelrol lenantrieb ( 4 ) is integrated.
DE2001124899 2001-05-22 2001-05-22 Crystal pulling machine with a lifting device Expired - Lifetime DE10124899B4 (en)

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 true DE10124899A1 (en) 2002-11-28
DE10124899B4 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1602617A1 (en) * 2004-06-03 2005-12-07 Demag Cranes & Components GmbH LIfting apparatus with load measuring device and method to determine the load on a lifting apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512103C2 (en) * 1995-04-03 1997-06-05 Rotzler Gmbh Co Cable winch with operating data acquisition
EP0841298A2 (en) * 1996-11-07 1998-05-13 R. Stahl Fördertechnik GmbH Control arrangement with detection of the weight of the load

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3109564B2 (en) * 1995-03-27 2000-11-20 大倉電気株式会社 Weight measuring device for grown crystal
JP3615291B2 (en) * 1995-12-25 2005-02-02 信越半導体株式会社 Pulled crystal weight measuring device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512103C2 (en) * 1995-04-03 1997-06-05 Rotzler Gmbh Co Cable winch with operating data acquisition
EP0841298A2 (en) * 1996-11-07 1998-05-13 R. Stahl Fördertechnik GmbH Control arrangement with detection of the weight of the load

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1602617A1 (en) * 2004-06-03 2005-12-07 Demag Cranes & Components GmbH LIfting apparatus with load measuring device and method to determine the load on a lifting apparatus
US7234684B2 (en) 2004-06-03 2007-06-26 Demag Cranes & Components Gmbh Hoisting device with load measuring mechanism and method for determining the load of hoisting devices

Also Published As

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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