DE8626272U1 - Built camshaft from a shaft tube and pushed elements - Google Patents

Built camshaft from a shaft tube and pushed elements

Info

Publication number
DE8626272U1
DE8626272U1 DE19868626272 DE8626272U DE8626272U1 DE 8626272 U1 DE8626272 U1 DE 8626272U1 DE 19868626272 DE19868626272 DE 19868626272 DE 8626272 U DE8626272 U DE 8626272U DE 8626272 U1 DE8626272 U1 DE 8626272U1
Authority
DE
Germany
Prior art keywords
elements
shaft according
tube
shaft
opening
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
Application number
DE19868626272
Other languages
German (de)
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.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
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 Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Priority to DE19868626272 priority Critical patent/DE8626272U1/en
Anticipated expiration legal-status Critical
Publication of DE8626272U1 publication Critical patent/DE8626272U1/en
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/84Making other particular articles other parts for engines, e.g. connecting-rods
    • B21D53/845Making camshafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H53/00Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
    • F16H53/02Single-track cams for single-revolution cycles; Camshafts with such cams
    • F16H53/025Single-track cams for single-revolution cycles; Camshafts with such cams characterised by their construction, e.g. assembling or manufacturing features
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/02Camshafts

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (9)

1. Gebaute Nockenwelle oder dergleichen aus einem Wellenrohr und aufgeschobenen Elementen wie Steuernocken, Lagerringen, Zahn- oder Kegelrädern, hergestellt mittels einer Aufweitung des Wellenrohres im Bereich der Elemente, dadurch gekennzeichnet, daß das Material des einem Element zugeordneten Längsabschnittes des Wellenrohres insgesamt plastisch umgeformt ist, während das Material des jeweiligen Elements in der Randschicht überwiegend elastisch verformt ist.1. Built camshaft or the like from a shaft tube and pushed-on elements such as control cams, bearing rings, toothed or bevel gears, produced by widening the shaft tube in the area of the elements, characterized in that the material of the longitudinal section of the shaft tube associated with an element is plastically deformed overall , while the material of the respective element in the edge layer is predominantly elastically deformed. 2. Welle nach Anspruch 1, dadurch gekennzeichnet, daß das Material des Wellenrohres eine um 25 bis 35% geringere Zugfestigkeit Rm gegenüber dem Material der Elemente aufweist.2. Shaft according to claim 1, characterized in that the material of the shaft tube has a 25 to 35% lower tensile strength R m compared to the material of the elements. 3. Welle nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß als Wellenrohr ein gezogenes - in der Oberfläche vorzugsweise unbearbeitetes - Präzisionsrohr verwendet wird, insbesondere aus einem Werkstoff wie St 35 bis St 52.3. shaft according to one of claims 1 or 2, characterized, that as a wave tube - preferably in the surface Unprocessed - precision tube is used, especially from a Material like St 35 to St 52. 4. Welle nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß als Nocken Guß-, Stahl- oder Sinterelemente von großer Härte - bevorzugt vor dem Fügen fertig bearbeitet - verwendet werden, z. B. Nocken aus Kugellagerstahl.4. Shaft according to one of claims 1 to 3, characterized,  that as cams cast, steel or sintered elements of great hardness - preferably finished before joining - used, e.g. B. cams made of ball bearing steel. 5. Welle nach einem der Ansprüche 1 bis 4; dadurch gekennzeichnet, daß in der Durchgangsöffnung der Elemente eine - besondere mittels metallischer Paste gebundene - Hartpartikelbeschichtung und/oder vor dem Fügen ausgebildete Umfangsriefen vorgesehen sind.5. Shaft according to one of claims 1 to 4; characterized, that in the passage opening of the elements - a special means metallic paste bound - hard particle coating and / or before Join trained circumferential grooves are provided. 6. Welle nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß in der Durchgangsöffnung der Elemente axial verlaufende Ausnehmungen vorgesehen sind, deren Tiefe Ti vom Grundkreis des Querschnitts gemessen 0,2-1% der Wanddicke Lrad R des Rohres entspricht.6. Shaft according to one of claims 1 to 5, characterized, that axially extending recesses in the through opening of the elements are provided, the depth Ti of which is measured from the base circle of the cross section Corresponds to 0.2-1% of the wall thickness Lrad R of the pipe. 7. Welle nach Anspruch 6, dadurch gekennzeichnet, daß in der Durchgangsöffnung der Elemente vorzugsweise drei axial verlaufende Ausnehmungen umfangsverteilt angeordnet sind, die in der Summe etwa 1/3 des Gesamtumfangs einnehmen.7. shaft according to claim 6, characterized, that in the through opening of the elements preferably three axially extending recesses are arranged circumferentially distributed in the Take up about 1/3 of the total amount. 8. Welle nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Durchgangsöffnung der Elemente sich aus einem querschnittskonstanten Mittelabschnitt und zumindest bezüglich des Grundkreisbereichs sich zu den Stirnflächen hin konisch verjüngenden Endbereichen besteht.8. Shaft according to one of claims 1 to 7, characterized,  that the through opening of the elements consists of a cross-section constant central section and at least with respect to the Base circle area tapering towards the end faces End areas. 9. Welle nach Anspruch 8, dadurch gekennzeichnet, daß die Differenz Umin zwischen dem Rohr-Außendurchmesser da und dem Elementen-Innendurchmesser Di an den Stirnflächen vor dem Aufweiten größer oder gleich null ist.9. Shaft according to claim 8, characterized in that the difference U min between the tube outer diameter d a and the element inner diameter D i at the end faces before expansion is greater than or equal to zero.
DE19868626272 1986-10-01 1986-10-01 Built camshaft from a shaft tube and pushed elements Expired - Lifetime DE8626272U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19868626272 DE8626272U1 (en) 1986-10-01 1986-10-01 Built camshaft from a shaft tube and pushed elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19868626272 DE8626272U1 (en) 1986-10-01 1986-10-01 Built camshaft from a shaft tube and pushed elements

Publications (1)

Publication Number Publication Date
DE8626272U1 true DE8626272U1 (en) 2000-08-17

Family

ID=6798837

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19868626272 Expired - Lifetime DE8626272U1 (en) 1986-10-01 1986-10-01 Built camshaft from a shaft tube and pushed elements

Country Status (1)

Country Link
DE (1) DE8626272U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003027446A1 (en) * 2001-09-27 2003-04-03 Thyssenkrupp Presta Ag Camshaft and method for making same
EP1440745A1 (en) * 2003-01-24 2004-07-28 Muhr und Bender KG Composite camshaft and method and apparatus for manufacturing the same
DE102006044735A1 (en) * 2006-09-20 2008-04-30 Muhr Und Bender Kg Built-up camshaft with dents under the deferred components
DE102013210403A1 (en) * 2013-06-05 2014-12-11 Mahle International Gmbh Method for producing a camshaft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003027446A1 (en) * 2001-09-27 2003-04-03 Thyssenkrupp Presta Ag Camshaft and method for making same
EP1440745A1 (en) * 2003-01-24 2004-07-28 Muhr und Bender KG Composite camshaft and method and apparatus for manufacturing the same
DE102006044735A1 (en) * 2006-09-20 2008-04-30 Muhr Und Bender Kg Built-up camshaft with dents under the deferred components
DE102013210403A1 (en) * 2013-06-05 2014-12-11 Mahle International Gmbh Method for producing a camshaft

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