DE102005024292A1 - Shaft hardening, especially for raw crankshafts, uses at least one support to hold the shaft during hardening without rotation - Google Patents
Shaft hardening, especially for raw crankshafts, uses at least one support to hold the shaft during hardening without rotation Download PDFInfo
- Publication number
- DE102005024292A1 DE102005024292A1 DE200510024292 DE102005024292A DE102005024292A1 DE 102005024292 A1 DE102005024292 A1 DE 102005024292A1 DE 200510024292 DE200510024292 DE 200510024292 DE 102005024292 A DE102005024292 A DE 102005024292A DE 102005024292 A1 DE102005024292 A1 DE 102005024292A1
- Authority
- DE
- Germany
- Prior art keywords
- shaft
- crankshaft
- hardening
- elements
- 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.)
- Ceased
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/30—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for crankshafts; for camshafts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Erhöhung der Bauteilfestigkeit einer Welle durch Härten unter Einfluss von Wärme, wobei mindestens ein Stützelement verwendet wird zur Abstützung der Welle während des Härtungsvorgangs.The The present invention relates to a method for increasing the Component strength of a shaft by hardening under the influence of heat, wherein at least one support element is used for support the wave during the curing process.
Die
Bei diesem und anderen bekannten Verfahren wird die Kurbelwelle gehärtet, während sie sich dreht. Die Stützeinrichtung, die in Bezug auf die zu härtende Lagerfläche der Kurbelwelle verstellbar ist, umfasst zwei Stützrollen auf einer Platte, auf denen Lagerflächen der Kurbelwelle aufliegen.at This and other known methods, the crankshaft is cured while they turns. The support device, the in relation to the to be hardened storage area the crankshaft is adjustable, comprises two support rollers on a plate, on which storage areas resting on the crankshaft.
In
der
Bei den zuvor geschilderten und anderen aus dem Stand der Technik bekannten Verfahren erfolgt der Härteprozess nach einer mechanischen Vorbearbeitung der Welle.at the previously described and others known from the prior art Procedure, the hardening process takes place after mechanical pre-machining of the shaft.
Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zur Erhöhung der Bauteilfestigkeit einer Welle durch Härten der eingangs genannten Gattung zur Verfügung zu stellen, bei dem eine solche Vorbearbeitung der Welle nicht notwendig ist und welches insgesamt einfacher und kostengünstiger durchführbar ist.task The present invention is a method for increasing the Component strength of a shaft by hardening the aforementioned Genus available to make in which such a pre-machining of the shaft is not necessary is and which is generally easier and cheaper to carry out.
Die Lösung dieser Aufgabe liefert ein erfindungsgemäßes Verfahren zur Erhöhung der Bauteilfestigkeit einer Welle durch Härten der eingangs genannten Gattung mit den kennzeichnenden Merkmalen des Hauptanspruchs.The solution This object is achieved by a method according to the invention for increasing the Component strength of a shaft by hardening the aforementioned Genus with the characterizing features of the main claim.
Das Härten der Welle erfolgt erfindungsgemäß an der stehenden Welle, das heißt, dass diese sich während der Bearbeitung nicht dreht. Gemäß einer bevorzugten Weiterbildung der Erfindung wird die Welle im Rohzustand gehärtet. Es ist also keine Vorbearbeitung notwendig und es kann preiswerteres Rohmaterial eingesetzt werden. Beispielsweise Gusseisen anstelle von Stahl.The hardening The shaft is according to the invention at the standing wave, that is, that these are during the processing does not turn. According to one preferred embodiment of the invention, the shaft is in the raw state hardened. So there is no pre-processing necessary and it can be cheaper raw material be used. For example, cast iron instead of steel.
Vorzugsweise erfolgt das Härten einer stehenden Welle mit Abstützungen, um Verzüge zu vermeiden. Dabei werden insbesondere Abstützelemente verwendet, die entweder parallel zur Achse der Welle verfahrbar sind oder aber radial, das heißt quer zur Achse der Welle verfahrbar sind.Preferably the hardening takes place a standing wave with supports, for delays to avoid. In particular, support elements are used, either parallel to the axis of the shaft are movable or radially, the is called Can be moved transversely to the axis of the shaft.
Gegenstand der vorliegenden Erfindung ist insbesondere ein Verfahren zur Erhöhung der Bauteilfestigkeit von Kurbelwellen. Zur Abstützung können in diesem Fall insbesondere Abstützelemente zur Anwendung kommen, die seitlich an eine Kurbelwellenwange anlegbar sind und/oder Abstützelemente, die an die Durchmesser der Kurbelwelle heranfahrbar sind. Das erfindungsgemäße Verfahren erlaubt eine kostengünstige Fertigung von Kurbelwellen und zwar auch solcher, die für hohe Leistungen und Drehmomente ausgelegt sind. Der Härteprozess kann beispielsweise eine Induktivhärtung umfassen, wobei aber die Welle anders als bei den bisherigen Verfahren bei der Härtung nicht gedreht wird.object The present invention is particularly a method for increasing the Component strength of crankshafts. To support in this case, in particular Support elements for Application can be applied to the side of a crankshaft cheek are and / or support elements, which are approachable to the diameter of the crankshaft. The inventive method allows a cost-effective Manufacture of crankshafts and even those that are designed for high performance and Torques are designed. The hardening process can, for example an inductive hardening but the wave is different than the previous methods during curing not turned.
Gemäß einer Weiterbildung der Erfindung wird für den Härtevorgang eine Vorrichtung verwendet mit Induktorelementen, die mindestens teilweise verfahrbar sind. Beispielsweise kann man eine Vorrichtung mit einem Gestell verwenden, in welches die Rohteil-Kurbelwelle eingelegt wird, wobei vorzugsweise gestellfeste Induktorelemente vorgesehen sind. Weiterhin können oberhalb der Kurbelwelle über eine entsprechende Einrichtung verfahrbare, das heißt absenkbare und anhebbare Induktorelemente verwendet werden. Wird eine solche Vorrichtung für den Härtevorgang geschlossen, erhält man quasi eine Art Form, die die zu härtende Kurbelwelle mindestens abschnittsweise umgibt.According to one Further development of the invention becomes a device for the hardening process used with inductor elements that are at least partially movable are. For example, you can use a device with a rack use, in which the blank crankshaft is inserted, wherein preferably frame-fixed inductor elements are provided. Farther can above the crankshaft above a corresponding device movable, that is lowerable and liftable inductor elements are used. Will one Device for the hardening process closed, receives you're sort of a shape that the crankshaft to be hardened at least surrounds in sections.
Gemäß einer möglichen bevorzugten Variante betrifft die Erfindung ein Verfahren zur Erhöhung der Bauteilfestigkeit einer Kurbelwelle durch Härten unter Einfluss von Wärme mit den nachfolgenden Verfahrensschritten:
- – Einlegen der Kurbelwelle als Rohteil in gestellfeste Induktorelemente;
- – Verfahren von quer zur Achse der Welle verfahrbaren Induktorelementen in Richtung auf die Welle;
- – Anlegen von Abstützelementen stirnseitig an die Kurbelwellenwangen und/oder radial verfahrbaren Abstützelementen an die Durchmesser;
- – Zuführung von Energie für den Härtungsvorgang, insbesondere Induktivhärtung der Welle, wobei diese Welle nicht gedreht wird;
- – Abkühlen der Welle;
- – Zurückziehen der Abstützelemente, Öffnen der Vorrichtung und Entnahme der Welle.
- - Inserting the crankshaft as a blank in frame-fixed inductor elements;
- - Movement from transversely to the axis of the shaft Baren inductor elements in the direction of the shaft;
- - Applying support elements frontally to the crankshaft cheeks and / or radially movable support elements to the diameter;
- - Supplying energy for the curing process, in particular inductive hardening of the shaft, said shaft is not rotated;
- - cooling the shaft;
- - Retracting the support elements, opening the device and removal of the shaft.
Die in den Unteransprüchen genannten Merkmale betreffen bevorzugte Weiterbildungen der erfindungsgemäßen Aufgabenlösung. Weitere Vorteile der Erfindung ergeben sich aus der nachfolgenden Detailbeschreibung.The in the subclaims mentioned features relate to preferred developments of the task solution according to the invention. Further Advantages of the invention will become apparent from the following detailed description.
Nachfolgend wird die vorliegende Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen näher beschrieben. Dabei zeigenfollowing The present invention will be described with reference to exemplary embodiments to the accompanying drawings. Show
Zunächst wird
auf
Dieser
Schlitten
Die
Einrichtung umfasst außerdem
sowohl im Bereich des oberen verfahrbaren Schlittens
Nach
dem Anlegen der Abstützelemente
- 1010
- Rohteil-KurbelwelleBlank crankshaft
- 10'10 '
- Kurbelwellecrankshaft
- 1111
- Schlittencarriage
- 1212
- Gestellframe
- 1313
- Induktorelementinductor
- 1414
- Induktorelementinductor
- 1515
- Abstützelementsupporting
- 1616
- Kurbelwellenwangencrankshaft webs
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510024292 DE102005024292A1 (en) | 2005-05-27 | 2005-05-27 | Shaft hardening, especially for raw crankshafts, uses at least one support to hold the shaft during hardening without rotation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510024292 DE102005024292A1 (en) | 2005-05-27 | 2005-05-27 | Shaft hardening, especially for raw crankshafts, uses at least one support to hold the shaft during hardening without rotation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005024292A1 true DE102005024292A1 (en) | 2006-11-30 |
Family
ID=37387691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510024292 Ceased DE102005024292A1 (en) | 2005-05-27 | 2005-05-27 | Shaft hardening, especially for raw crankshafts, uses at least one support to hold the shaft during hardening without rotation |
Country Status (1)
Country | Link |
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DE (1) | DE102005024292A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE673369C (en) * | 1935-12-31 | 1939-03-21 | Ohio Crankschaft Company | Method and inductor for surface hardening of crankshaft journals o. |
DE1950087A1 (en) * | 1968-10-07 | 1970-04-16 | Elphiac Sa | Partial induction heating of crankshafts etc |
GB1190951A (en) * | 1966-05-26 | 1970-05-06 | Caterpillar Tractor Co | Multi-Throw Die-Quenched Crankshaft and method of Heat Treatment therefor |
DE4001887C2 (en) * | 1990-01-23 | 1992-01-30 | Maschinenfabrik Alfing Kessler Gmbh, 7080 Aalen, De | |
DE4228093C1 (en) * | 1992-08-24 | 1993-04-08 | Aeg-Elotherm Gmbh, 5630 Remscheid, De | Hardening of bearing surfaces of different size crankshaft - comprises two inductor sets, each inductor is adapted for a specific crankshaft having associated transformers, connecting lead, cooling and quenching pipes, etc. |
EP0520220B1 (en) * | 1991-06-13 | 1995-11-15 | Mercedes-Benz Ag | Method and device for inductive surface hardening of crankshaft journals and pins |
DE19934534C1 (en) * | 1999-07-22 | 2000-10-12 | Elotherm Gmbh | Bearing face hardening process, especially for minimal distortion crankshaft or camshaft induction hardening, uses a previous bearing face distortion value to regulate a support device during subsequent bearing face hardening |
-
2005
- 2005-05-27 DE DE200510024292 patent/DE102005024292A1/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE673369C (en) * | 1935-12-31 | 1939-03-21 | Ohio Crankschaft Company | Method and inductor for surface hardening of crankshaft journals o. |
GB1190951A (en) * | 1966-05-26 | 1970-05-06 | Caterpillar Tractor Co | Multi-Throw Die-Quenched Crankshaft and method of Heat Treatment therefor |
DE1950087A1 (en) * | 1968-10-07 | 1970-04-16 | Elphiac Sa | Partial induction heating of crankshafts etc |
DE4001887C2 (en) * | 1990-01-23 | 1992-01-30 | Maschinenfabrik Alfing Kessler Gmbh, 7080 Aalen, De | |
EP0520220B1 (en) * | 1991-06-13 | 1995-11-15 | Mercedes-Benz Ag | Method and device for inductive surface hardening of crankshaft journals and pins |
DE4228093C1 (en) * | 1992-08-24 | 1993-04-08 | Aeg-Elotherm Gmbh, 5630 Remscheid, De | Hardening of bearing surfaces of different size crankshaft - comprises two inductor sets, each inductor is adapted for a specific crankshaft having associated transformers, connecting lead, cooling and quenching pipes, etc. |
DE19934534C1 (en) * | 1999-07-22 | 2000-10-12 | Elotherm Gmbh | Bearing face hardening process, especially for minimal distortion crankshaft or camshaft induction hardening, uses a previous bearing face distortion value to regulate a support device during subsequent bearing face hardening |
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R012 | Request for examination validly filed |
Effective date: 20120225 |
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R084 | Declaration of willingness to license |
Effective date: 20120225 |
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R003 | Refusal decision now final |
Effective date: 20150213 |