• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A dimensioning rule is specified, with the aid of which material pairs can be selected between a hollow shaft to be widened from the inside in the plastic region and drive elements, e.g. cams for internal-combustion engines, to be affixed thereon by springing back from the elastic deformation. As well as the internal and external diameter of the shaft, the governing role is played by the flow limits and moduli of elasticity of the two materials. <IMAGE>
    公开号:SU1627093A3
    申请号:SU884355747
    申请日:1988-05-24
    公开日:1991-02-07
    发明作者:Шульце Рудольф-Йохен；Маус Вольфганг；Сварс Хельмут
    申请人:Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering and is supposed to be used in other branches of the national economy, where hollow shafts are used with drive elements attached to them, such as cams, gears, supporting tribes, and the like.
    The aim of the invention is to increase the reliability of fastening the drive elements.
    FIG. 1 shows a hollow shaft with a drive element attached thereto; in fig. 2 - drive element.
    The device comprises a hollow shaft 1 with a drive element 2 fixed thereto, for example a cam. The fastening is effected by expanding, for example, hydraulically, the shaft sections corresponding to the seating positions of the driving elements. The invention defines a rule of dimensioning, allowing material to be selected for a hollow shaft as a material with a small (much smaller) modulus of elasticity compared to the modulus of steel and at the same time determining the desired (suitable) material for the drive elements, ultimately getting satisfactory results.
    Optimal conditions for securing the drive elements to the hollow shaft are satisfied if the materials of the shaft and the drive elements satisfy the following conditions.
    627093 F
    ten
    15
    formula of invention
    A hollow shaft with drive elements made of a material with a modulus of elasticity less than 150,000 N / mm2, and the drive elements are fixed on said shaft by means of extended shaft sections at the location of the drive elements, characterized in that, material characteristics of the shaft and the drive elements are interconnected by the following ratio
    V °.
    and G,
    - () t
    r. - r
     I at
    A
     w
    Wa
    de HOS material yield strength of the drive elements; E is the modulus of elasticity of the material of the drive elements; . R | material yield strength
    E - the modulus of elasticity of the material
    shaft;
    y y - outer radius of the shaft; Goo - the inner radius of the shaft; - the inner radius of the drive element.
    77Ъ

    1m
    hch
    / 2
    so bb
    Fw
    EA / E
    .G, guuvch2 L W LW H
    0
    five
    0
    Where
    G
      rwq
    (%)
     W
    )
    FA
    K A
    PCW1 WA
    rw;
    yield strength of the material of the drive elements;
    the modulus of elasticity of the material of the drive elements, the yield strength of the material of the shaft1;
    the modulus of elasticity of the material of the shaft, the outer radius of the shaft; inner radius of the shaft;
    go - the inner radius of the drive element.
    1
    权利要求:
    Claims (1)
    [1]
    Claim
    A hollow shaft with drive elements made of a material with an elastic modulus of less than 150,000 N / mm g , and drive elements are fixed on the specified shaft by means of extended sections of the shaft at the place of installation of the drive elements, distinguish 1θ by the fact that, in order to increase reliability fixing drive elements on the shaft, the characteristics' material shaft and the drive elements are interconnected conductive sleduyu15 ratio rk e 20 d == 0Λ (^ · ε Λ / Ε ,, · [( ») 2 yield strength of the material of the drive elements;
    the elastic modulus of the material of the drive elements; yield strength of shaft material;
    - the modulus of elasticity of the material of the shaft;
    r W1 γ α:
    - outer radius of the shaft; -internal radius of the shaft;
    - the inner radius of the drive element.
    and where is the yield strength of the material of the drive elements;
    E d E W the modulus of elasticity of the material of the drive elements', the yield strength of the shaft material;
    the elastic modulus of the shaft material, ’g ^ d is the outer radius of the shaft; g is the inner radius of the shaft;
    gd · - the inner radius of the drive element. ;
    Compiled by B. Baranov _ Editor A. Motyl Tehred L. Oliinyk Proofreader A. Osaulenko
    Order 291 Circulation 417 Subscription
    VNIIIPI of the State Committee for Inventions and Discoveries at the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5
    Production and Publishing Plant Patent, Uzhhorod, st. Gagarina, 101
    类似技术:
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    同族专利:
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    CN88103203A|1988-12-07|
    JPS63318362A|1988-12-27|
    KR880014289A|1988-12-23|
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    JP2554607B2|1996-11-13|
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    引用文献:
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    DE2922509A1|1979-05-31|1980-12-04|Mannesmann Ag|METHOD AND DEVICE FOR PRODUCING CAMSHAFT|
    EP0089379B1|1982-03-17|1988-06-08|Kawasaki Jukogyo Kabushiki Kaisha|Method of producing multiple-wall, composite tubular structures|
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    DE3633435A1|1986-10-01|1988-04-14|Uni Cardan Ag|METHOD FOR PRODUCING A BUILT-IN CAMSHAFT, AND BUILT-IN CAMSHAFT FROM A SHAFT TUBE AND SLIDE-ON ELEMENTS|DE3738809C2|1987-11-15|1991-09-19|Emitec Emissionstechnologie|
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    DE102011087049A1|2011-11-24|2013-05-29|Mahle International Gmbh|Method for joining components on a shaft|
    DE102013202657A1|2012-12-20|2014-07-10|Mahle International Gmbh|Method for thermal joining of non-circular functional components on a shaft|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19873717516|DE3717516A1|1987-05-25|1987-05-25|HOLLOW SHAFT MADE OF A MATERIAL WITH A LOW ELASTICITY MODULE WITH EXTENSIVE DRIVE ELEMENTS FASTENED ON IT|
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