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WO2011160240A1 - Corps d'arbre comprenant un segment à contour externe moleté longitudinalement - Google Patents

Corps d'arbre comprenant un segment à contour externe moleté longitudinalement Download PDF

Info

Publication number
WO2011160240A1
WO2011160240A1 PCT/CH2010/000161 CH2010000161W WO2011160240A1 WO 2011160240 A1 WO2011160240 A1 WO 2011160240A1 CH 2010000161 W CH2010000161 W CH 2010000161W WO 2011160240 A1 WO2011160240 A1 WO 2011160240A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer contour
shaft body
hub
longitudinally
section
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
Application number
PCT/CH2010/000161
Other languages
German (de)
English (en)
Inventor
Peter Meusburger
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.)
Jansen AG
Original Assignee
Jansen AG
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 Jansen AG filed Critical Jansen AG
Priority to PCT/CH2010/000161 priority Critical patent/WO2011160240A1/fr
Publication of WO2011160240A1 publication Critical patent/WO2011160240A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
    • F16D1/072—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
    • F16D1/0858—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to the elasticity of the hub (including shrink fits)

Definitions

  • the present invention relates to a Wel ⁇ len redesign having a portion with a longitudinally knurled outer contour and a shaft assembly comprising such a shaft body according to the preambles of the independent claims.
  • the receiving bore of the hub body is enlarged and, accordingly, the required minimum external dimensions of the same.
  • hub connections are known in which a hub body is pressed with a cylindrical receiving bore on a longitudinally knurled portion of a shaft body.
  • the longitudinal knurls furrow in the smooth receiving bore of the hub body, so that a positive and positive hub connection between the hub body and shaft body is created.
  • this technique for producing a hub connection there is a risk that it may come to a pre-damage of the hub body during assembly and to increased risk of cracking due to abrupt, jerky force fluctuations or impact effects in the hub body, so this process does not without restrictions for very thin or hardened hub body.
  • a first aspect of the invention relates to a shaft body, preferably of metal, having a portion with a longitudinally-knurled outer contour, for forming a hub connection between the shaft body and a hub body by pressing the hub body in the axial direction onto the longitudinally-knurled outer contour.
  • the longitudinally knurled outer contour of the shaft body, starting from one end of the section, is progressively more or less progressively circumferentially formed over at least a portion of the section.
  • the shaft body according to the invention leads to a gentle, material-sparing increase in the pressing force during joining and thus effectively reduces the danger that during the production of the hub connection pre-damage of the hub body and increased risk of cracking due to abrupt, impact-like force fluctuations or from impact effects in the hub body comes. Accordingly, the shaft body according to the invention is also particularly suitable for very thin or hardened hub bodies, in particular for the formation of built-up camshafts and gear shafts.
  • the subregion in which the longitudinally contoured outer contour is progressively formed extends at least over one sixth, in particular over one quarter and in particular over one third of the longitudinally interlaced section.
  • the remaining areas of the section advantageously have a circumferentially constant, cylindrical longitudinally-knurled outer contour.
  • the hub material and the desired torque transmission capability of the hub connection to be produced one or the other variant may be more advantageous.
  • the shaft body is the longitudinally knurled outer contour over the entire section continuously or gradually formed in the scope increasingly. This results in the joining with a hub body with a cylindrical receiving bore over the entire joining process, an increase in the pressing force.
  • the longitudinally-knurled outer contour of the section is polygonal or essentially circular.
  • Such outer contour shapes are particularly suitable for the production of hub connections according to the invention.
  • the longitudinally-knurled outer contour in the region in which it is increasingly formed in the circumference is preferably uniform with a pitch angle with respect to the longitudinal axis of the shaft body of less than 10 ° and more preferably with a pitch angle with respect to the longitudinal axis of the shaft body of less than 5 ° increasing in scope.
  • pitch angle have been found to be particularly suitable in combination with hub bodies with cylindrical mounting holes.
  • the longitudinally contoured outer contour is formed by longitudinal knurls uniformly distributed over the circumference of the outer contour. This facilitates the production of the longitudinal knurl and also provides the advantage that, viewed over the circumference, a uniform torque transmission capability of the hub connection results.
  • the longitudinal knurls of the longitudinally-knurled outer contour in the region in which this outer contour is increasingly formed in the circumference increase in width as the length of the longitudinally-knurled outer contour increases, decreasing in width or uniform in width.
  • the choice of material with respect to the shaft body and / or the hub body and the desired quality of the hub connection one or the other embodiment may be particularly advantageous.
  • the joining movement for producing a hub connection with the shaft body is a pure translational movement, which can be carried out with simple presses.
  • the positive fit of the hub connection produced in the axial direction is neutral, i. that no axial force component occurs when loaded in the circumferential direction of the joint connection.
  • the shaft body is a hollow body, in particular of a thin-walled metal tube.
  • Such shaft bodies are particularly material-saving and, compared with solid shaft bodies, have only a minor weight and a lower rotational moment of inertia. moderately reduced rotational (torsion) and axial (bending) moment of resistance.
  • the longitudinal knurls of the longitudinally-knurled outer contour are produced by cold deformation, which is preferred, in particular by a rolling process, they have an increased strength compared to the base material.
  • the longitudinal knurls of the longitudinally-knurled outer contour are hardened.
  • Such longitudinal knurls furrow particularly well into the receiving openings of a hub body and are particularly suitable for thin-walled hardened hub body.
  • the shaft body is integrally formed, in particular without cohesive joints, whereby a particularly cost-effective and stable shaft body results.
  • a second aspect of the invention relates to a shaft assembly with a shaft body according to the first aspect of the invention.
  • the shaft body has one or more sections with a longitudinally-knurled outer contour, on which one or more hub bodies are correspondingly fastened by pressing in the axial direction on the longitudinally knurled outer contours.
  • the formation of such a shaft arrangement corresponds to the intended use of the shaft body according to the first aspect of the invention.
  • the hub body or bodies have a receiving bore which is cylindrical at least over the major part of its axial extension and in which the respective section is received with a longitudinally contoured outer contour.
  • Such shaft assemblies are inexpensive to manufacture, since the receiving bores of the hub body can be produced by simple manufacturing methods.
  • the hub body or at least one of the hub body has a ratio of the mean diameter of the receiving bore of the hub body to the smallest wall thickness in the radial direction of the hub body of greater than 10, preferably greater than 15. In shaft assemblies with such "thin-walled" hub bodies The advantage of the invention come particularly clearly to bear.
  • the hub body or at least one of the hub body has a receiving bore with a curved Eindusfase which merges substantially seamlessly into the inner surface of the receiving bore. This further reduces the risk of abrupt Aufpresskraftstössen when joining and thus the risk of pre-damage of the hub body. Also, such an introduction phase of the
  • introduction bevels have proven to be particularly suitable, which extend starting from the inner surface of the receiving bore according to the following function:
  • Y is the radial extension of the insertion chamfer
  • X is the axial extent starting from the receiving bore
  • FL is the total length of the introduction chamfer
  • ⁇ is the chamfer angle at the end face of the hub body.
  • the hub body or at least one of the hub body has a receiving bore, which has prefabricated inner knurls, which in the longitudinal knurl of the longitudinal outer contour of the knurled therein intervene in the recorded section.
  • Fig. 2 shows the shaft of Figure lb body when pressed on ⁇ a hub body on its longitudinal knurls to form an inventive shaft assembly
  • FIG. 3 shows detail X from FIG. 2 in a second hub body for forming a shaft arrangement according to the invention
  • FIG. 4 shows a third hub body for forming an inventive shaft arrangement in section.
  • the shaft bodies 1 are each formed in one piece and each have a portion 2 with a longitudinally knurled outer contour and on the right and left thereof each have a section 9 with a smooth outer contour. While the last-mentioned sections 9 are designed throughout as circular cylinders, the sections 2 with the longitudinally-knurled outer contour are formed differently in the three embodiments.
  • the longitudinally-knurled outer contour is starting from one end of the section 2 over a first partial region a of the longitudinal extent L in the periphery steplessly and steadily increasing, such that the section 2 in this first portion a has a truncated cone shape with lekssgerändelter outer contour.
  • the pitch angle with respect to the longitudinal axis of the shaft body 1 is here about 10 °.
  • second portion b of the section 2 is formed as a circular cylinder with a longitudinally knurled outer contour.
  • the truncated conical portion a of the section 2 has a smallest outer diameter equal to the outer diameter d of the left section 9 with the smooth outer contour and a largest outer diameter equal to the outer diameter Dl of the second section b of the longitudinally interleaved section 2.
  • the first partial region a extends approximately over one third of the longitudinal extension L of the slow-twisted section 2.
  • the longitudinally-knurled outer contour starting from one end of section 2 over its entire longitudinal extension L, increases in circumference continuously and steadily, such that the entire longitudinally-knurled section 2 has a truncated cone shape.
  • the section 2 here has a smallest outer diameter equal to the outer diameter d of the left section 9 with the smooth outer contour and a largest outer diameter Dl.
  • the pitch angle with respect to the longitudinal axis of the shaft body 1 is here about 3 °.
  • the longitudinally-knurled outer contour gradually increases in circumference, starting from one end of section 2 over its longitudinal extent L, such that section 2 in a first section a is larger than circular cylinder with longitudinally contoured outer contour with outer diameter D3 the outside diameter d of the left portion 9 is formed with the smooth outer contour and in a second portion b, which adjoins directly to the first portion a, as a circular cylinder with longitudinally knurled outer contour with an outer diameter Dl, which is greater than the outer diameter D3 of the first portion of the section 2.
  • the two sections a, b each extend over one half of the longitudinal extent L of the slow-twisted section 2.
  • the longitudinal extent L of the longitudinally interleaved portion 2 is greater than two-thirds of the largest diameter Dl of the respective section 2, that the longitudinally knurled outer contour is formed by uniformly distributed over the circumference of the outer contour longitudinal knurl 4 and that the L jossrändel 4 each seen in the longitudinal direction parallel to the longitudinal axis of the respective shaft body 1 extend.
  • FIG. 2 shows the shaft body 1 from FIG. 1b when a hub body 1 is pressed onto its longitudinally twisted section 2 to form a shaft arrangement according to the invention.
  • the hub body 3 is shown in section. The difference between the outer diameter d of the left cylindrical section 9 with a smooth outer contour and the inner diameter D2 of the receiving bore 6 of the hub body 3 is exaggerated.
  • the receiving bore 6 of the hub body 3 is designed as a cylindrical bore over the major part of the axial extension of the hub body 3, which merges with an insertion bevel 7 in the end face 8 of the hub body 3 on the bore side pointing in the pressing-on direction P.
  • Inner diameter D2 of the receiving bore 6 of the hub body 3 to the smallest wall thickness W in the radial direction of the hub body 3 is about 2, so it is a relatively thick-walled hub body third
  • Fig. 3 shows the detail X of Fig. 2 at a second hub body, which is also for formation a shaft assembly according to the invention with one of the shaft body 1 of the figures la-lc is suitable.
  • This hub body 3 has a cylindrical receiving bore 6 with an inner diameter D2 with a curved introduction chamfer 7, which merges into the cylindrical inner surface 5 of the receiving bore 6 substantially without transition.
  • Fig. 4 shows a third hub body 3, which is also suitable for forming a shaft assembly according to the invention with one of the shaft body of the figures la-lc.
  • the receiving bore 6 of the hub body 3 has prefabricated inner rim 10 for engaging in the longitudinal knurl 4 of the longitudinally-knurled portion 2 of one of the shaft bodies 3 of FIGS. 1 a-lc when pressed onto such a shaft body 3 form in the present case a circular cylindrical knurled inside contour over a large part of its axial extent of the hub body 3, to which a section c with a circular cylindrical smooth inner contour and then an introduction chamfer 7 adjoins on the bore side pointing in the pressing direction P.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

L'invention concerne un corps d'arbre (1) comportant un segment (2) qui présente un contour externe moleté longitudinalement, destiné à former une liaison avec un moyeu, entre le corps d'arbre (1) et un corps de moyeu (3), par engagement par pression du corps de moyeu (3) dans la direction axiale (P) sur le contour moleté longitudinalement. Le contour externe moleté longitudinalement est formé de manière à présenter un diamètre croissant à partir d'une extrémité du segment (2) sur au moins une partie (a, L) du segment (2). Cette configuration du corps d'arbre (1) provoque un accroissement progressif de la pression d'engagement, qui ménage les matériaux lors du montage, et réduit ainsi de manière efficace l'apparition d'amorces de dégradations lors du montage du corps de moyeu (3) et le risque accru de fissurations, sous l'effet de fluctuations brusques, par à-coups, des forces appliquées, ou chocs appliqués au corps de moyeu (3). Ce corps d'arbre (1) est par conséquent particulièrement adapté à des corps de moyeu (3) très minces ou trempés.
PCT/CH2010/000161 2010-06-22 2010-06-22 Corps d'arbre comprenant un segment à contour externe moleté longitudinalement Ceased WO2011160240A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CH2010/000161 WO2011160240A1 (fr) 2010-06-22 2010-06-22 Corps d'arbre comprenant un segment à contour externe moleté longitudinalement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2010/000161 WO2011160240A1 (fr) 2010-06-22 2010-06-22 Corps d'arbre comprenant un segment à contour externe moleté longitudinalement

Publications (1)

Publication Number Publication Date
WO2011160240A1 true WO2011160240A1 (fr) 2011-12-29

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Country Status (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014101991A3 (fr) * 2012-12-21 2014-10-30 Thyssenkrupp Presta Teccenter Ag Procédé d'assemblage d'un arbre à cames
WO2017125259A1 (fr) * 2016-01-22 2017-07-27 GETRAG B.V. & Co. KG Arbre de transmission, appariement de pièces et procédé pour faire fonctionner un arbre de transmission
CN115461170A (zh) * 2020-04-29 2022-12-09 法雷奥新能源汽车德国有限责任公司 轴、成形工具、制造方法和用于电机的转子
EP4461982A1 (fr) * 2023-04-28 2024-11-13 Dr. Fritz Faulhaber GmbH & Co. KG Unité d'entraînement et arbre de liaison pour une unité d'entraînement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257613B (de) * 1959-11-03 1967-12-28 Raleigh Cycle Co Ltd Tretkurbelanordnung fuer Fahrraeder
DE4415033C1 (de) * 1994-04-29 1995-08-10 Loehr & Bromkamp Gmbh Verbindung zur harmonischen Übertragung von Drehmoment
FR2802255A1 (fr) * 1999-12-14 2001-06-15 Peugeot Citroen Automobiles Sa Procede de fabrication d'un arbre cannele et arbre obtenu par ledit procede
US20020041790A1 (en) * 2000-10-10 2002-04-11 Koya Suzuki Joining structure for two members, and propeller shaft
US20060075838A1 (en) * 2002-05-24 2006-04-13 Uwe Hacker Series of shafts and method for manufacturing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257613B (de) * 1959-11-03 1967-12-28 Raleigh Cycle Co Ltd Tretkurbelanordnung fuer Fahrraeder
DE4415033C1 (de) * 1994-04-29 1995-08-10 Loehr & Bromkamp Gmbh Verbindung zur harmonischen Übertragung von Drehmoment
FR2802255A1 (fr) * 1999-12-14 2001-06-15 Peugeot Citroen Automobiles Sa Procede de fabrication d'un arbre cannele et arbre obtenu par ledit procede
US20020041790A1 (en) * 2000-10-10 2002-04-11 Koya Suzuki Joining structure for two members, and propeller shaft
US20060075838A1 (en) * 2002-05-24 2006-04-13 Uwe Hacker Series of shafts and method for manufacturing the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014101991A3 (fr) * 2012-12-21 2014-10-30 Thyssenkrupp Presta Teccenter Ag Procédé d'assemblage d'un arbre à cames
JP2016506471A (ja) * 2012-12-21 2016-03-03 ティッセンクルップ プレスタ テックセンター アクチエンゲゼルシャフトＴｈｙｓｓｅｎＫｒｕｐｐ Ｐｒｅｓｔａ ＴｅｃＣｅｎｔｅｒ ＡＧ カムシャフトの組立方法
US9757822B2 (en) 2012-12-21 2017-09-12 Thyssenkrupp Presta Teccenter Ag Method for assembling a camshaft
CN105026101B (zh) * 2012-12-21 2018-04-27 蒂森克虏伯普利斯坦技术中心股份公司 用于组装凸轮轴的方法
WO2017125259A1 (fr) * 2016-01-22 2017-07-27 GETRAG B.V. & Co. KG Arbre de transmission, appariement de pièces et procédé pour faire fonctionner un arbre de transmission
CN108474418A (zh) * 2016-01-22 2018-08-31 格特拉格有限两合公司 传动轴、构件配对和用于运行传动轴的方法
CN108474418B (zh) * 2016-01-22 2021-04-30 格特拉格有限两合公司 传动轴、构件配对和用于运行传动轴的方法
CN115461170A (zh) * 2020-04-29 2022-12-09 法雷奥新能源汽车德国有限责任公司 轴、成形工具、制造方法和用于电机的转子
EP4461982A1 (fr) * 2023-04-28 2024-11-13 Dr. Fritz Faulhaber GmbH & Co. KG Unité d'entraînement et arbre de liaison pour une unité d'entraînement

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