• 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:
    Drive elements, particularly cams (2), are affixed on a hollow shaft (1) in such a manner that specific sections of the same (11) are expanded, i.e. plastically deformed. In this case, the opposite regions of the cams are elastically deformed. If these regions include brittle, e.g. hardened, material, there is a risk of crack formation. It is thus proposed that the cams be split into a first section (21), consisting of a material with a low expansion capability, and into a second section (22), consisting of a material with a high expansion capability, and that only the latter be subjected to deformation by the expansion process. …<IMAGE>…
    公开号:SU1688793A3
    申请号:SU884355764
    申请日:1988-05-24
    公开日:1991-10-30
    发明作者:Сварс Хельмут
    申请人:Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, namely to llamas with gears, cams, etc. rigidly mounted on them.
    The purpose of the invention is to prevent damage during fastening of the elements and increase the service life.
    The drawing shows a cam shaft, an axial longitudinal section.
    On the hollow shaft 1, the cams 2 are fastened due to the expansion of its certain sections. If viewed in the axial direction, the cams consist of the first sections (zones) 3 of the low-stretch material and the second sections 4 of the high-stretch material. A separate cam consists of a steel bushing 5 and a part 6 of a metal-ceramic alloy or nodular cast iron attached to it by casting. The wear surface 7 is hardened, for example, by means of induction heating, due to which a solid edge layer is produced. The connection of both parts is ensured by the geometrical closure of the longitudinal teeth 8 which enter one another. The steel sleeve 5 may have a surface with properties that make it possible to use it as a reference point. Only that portion of the hollow shaft that is opposite to portion 4 is plastically deformed, and only this zone is elastically deformed during the expansion process. Dangerous in terms of the occurrence of cracks, the surface 7 is not subjected to any loads.
    A steel bushing 5 can be inserted between the cam portion 6 and the hollow shaft along the entire length. This bushing, where it is opposite the first zone 3, is provided with a ground part 9, so that the zone 3 is not subjected to any deformations during expansion.
    A double cam can be made of a homogeneous material, such as, for example, malleable cast iron, hardened (i.e., brittle) only locally due to appropriate processing.
    权利要求:
    Claims (7)
    [1]
    1. A hollow shaft with drive elements attached to the extended sections of the shaft and consisting partly of a brittle material, characterized in that
    in order to prevent damage during fixing of the elements and increase the service life, the drive elements in the direction along the shaft axis consist of two sections, one of which is made of brittle material, the other is made of elastic, while the sections of drive elements of brittle material are made with an inner diameter, greater than the inner diameter of the second sections by the amount of broadening
    corresponding sections of the shaft.
    [2]
    2. A shaft according to claim 1, characterized in that the extended shaft sections are opposed only to the second portions of the drive elements.
    [3]
    3. Val according to claim 1. about tl and h and y i and so,
    that the drive elements are made of a homogeneous material locally embrittled by quenching.
    [4]
    4. The shaft according to claim 1, in accordance with the fact that the drive elements are made of geometrically closed, rigidly connected to one another parts of different materials.
    [5]
    5. Shaft according to claims 1 and 4, characterized in that the drive elements are rigidly interconnected by welding.
    [6]
    6. The shaft according to claims 1-5, characterized in that the plastic portions of the drive elements are made of steel, and the fragile ones are made of
    metal-ceramic alloy.
    [7]
    7.Val on PP. 1-5, that is, with the fact that the plastic parts of the drive elements are made of steel, and the brittle parts are made of gray cast iron.
    类似技术:
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    SU1688793A3|1991-10-30|Hollow shaft with drive members
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    EP0305371B1|1992-03-04|Fracture splitting of light metal components
    US4917509A|1990-04-17|Flanged bearing and process for producing same
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    US4886023A|1989-12-12|Crankshaft drive of an internal-combustion engine of V-type
    US1581083A|1926-04-13|Connectng-rod bearing
    EP0083927A1|1983-07-20|Engine camshaft
    JP2565374B2|1996-12-18|Ductile cast iron crankshaft
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    US3857297A|1974-12-31|Metallurgy of chains
    JPH03271343A|1991-12-03|Rolling member
    SU1731567A1|1992-05-07|Method of fabricating connecting rods
    RU2675868C1|2018-12-25|Method of repairing the strengthened by induction hardening crankshafts of internal combustion engines
    US2071193A|1937-02-16|Connecting rod construction for radial type internal combustion engines
    同族专利:
    公开号 | 公开日
    KR880014290A|1988-12-23|
    CN1015305B|1992-01-15|
    BR8802532A|1988-12-20|
    ES2024585B3|1992-03-01|
    JPH0470508B2|1992-11-11|
    EP0292795B1|1991-07-24|
    CN88103053A|1988-12-14|
    DE3717534C2|1991-01-03|
    JPS63318363A|1988-12-27|
    DE3717534A1|1988-12-15|
    CA1287227C|1991-08-06|
    KR960015247B1|1996-11-04|
    EP0292795A1|1988-11-30|
    MX169048B|1993-06-18|
    DE3863843D1|1991-08-29|
    US5004370A|1991-04-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2540344C1|2011-02-19|2015-02-10|Фольксваген Акциенгезельшафт|Ice timing valve control module|DE2336241A1|1973-07-17|1975-02-06|Volkswagenwerk Ag|Compound camshaft assembly for combustion engine - consists of shaft carrying separate bearings cams gearwheels etc fixed in correct positions|
    JPS5837902U|1981-09-04|1983-03-11|
    DE3227693C2|1982-07-24|1985-06-13|Mahle Gmbh, 7000 Stuttgart|Method for manufacturing a camshaft for internal combustion engines|
    JPS5941281U|1982-09-07|1984-03-16|
    JPS59155660A|1983-02-22|1984-09-04|Nissan Motor Co Ltd|Hollow cam shaft and manufacture thereof|
    JPH0418929B2|1984-09-11|1992-03-30|Nippon Piston Ring Co Ltd|
    US4674312A|1985-01-18|1987-06-23|Westinghouse Electric Corp.|Pilgering apparatus|
    US4597365A|1985-02-07|1986-07-01|General Motors Corporation|Camshaft assembly and method|
    JPH037451B2|1985-05-21|1991-02-01|Musashi Seimitsu Kogyo Kk|
    US4683004A|1985-08-20|1987-07-28|Union Carbide Corporation|Foamable compositions and processes for use thereof|
    DE3530600A1|1985-08-27|1987-03-05|Interatom|METHOD FOR FIXING DRIVE ELEMENTS ON A HOLLOW SHAFT|
    DE3704092C1|1987-02-10|1988-05-26|Schneider Gesenkschmiede|Hollow shaft and process for its manufacture|
    DE8713285U1|1987-10-02|1987-12-23|Interatom|Drive shaft with drive elements attached in groups.|DE8713285U1|1987-10-02|1987-12-23|Interatom|Drive shaft with drive elements attached in groups.|
    US5287615A|1987-12-15|1994-02-22|Emitech Gesellschaft Fur Emissionstechnologie Mbh|Process for joining a hollow shaft and elements slid thereon|
    DE3842593A1|1988-12-17|1990-06-21|Emitec Emissionstechnologie|PRE-TREATMENT METHOD|
    DE3842590C1|1988-12-17|1990-06-07|Emitec Emissionstechnologie|
    DE4420092C3|1994-06-09|2001-08-09|Daimler Chrysler Ag|Process for manufacturing a built camshaft with induction hardened cams|
    US6006429A|1994-06-09|1999-12-28|Daimlerchrysler Ag|Method of inductively hardening the cams of a camshaft|
    DE19606732C2|1995-02-27|2001-11-08|Emitec Emissionstechnologie|Joined multilayer waves|
    WO1998026161A2|1996-12-11|1998-06-18|Stefan Battlogg|Camshaft and valve actuating mechanism with said camshaft|
    EP0866216B1|1997-03-21|2003-05-07|Stefan Battlogg|Camshaft|
    DE19909184C2|1999-03-03|2001-08-30|Saechsische Elektronenstrahl G|Method of manufacturing a camshaft and camshaft produced thereafter|
    CH697202A5|2000-04-14|2008-06-25|Karl Merz|Camshaft and method and apparatus for their manufacture.|
    US6442835B1|2000-12-19|2002-09-03|Caterpillar Inc.|Camshaft for decreased weight and added wear resistance of lobe area|
    US6484396B1|2001-06-29|2002-11-26|Caterpillar Inc|Method for manufacturing a camshaft having added wear resistance of the lobe|
    KR100976110B1|2002-08-19|2010-08-16|가부시키가이샤 다이야멧트|Rotation transmission member, rotation transmission assembly, and gear mechanism|
    DE102007012756A1|2007-03-16|2008-09-18|Muhr Und Bender Kg|Method for producing built-up camshafts|
    DE102008053723A1|2008-10-29|2010-05-06|Neumayer Tekfor Holding Gmbh|Camshaft and manufacturing process this|
    DE102009025023A1|2009-06-10|2010-12-16|Neumayer Tekfor Holding Gmbh|Method for producing a camshaft and corresponding camshaft|
    EP2273322B1|2009-07-10|2012-05-23|Chopard Technologies SA|Method for mounting a part on a pivoting element|
    JP2011220266A|2010-04-12|2011-11-04|Toyota Motor Corp|Camshaft|
    DE102011087049A1|2011-11-24|2013-05-29|Mahle International Gmbh|Method for joining components on a shaft|
    DE102013012384A1|2013-07-25|2015-01-29|Man Truck & Bus Ag|Method for manufacturing a built-up camshaft|
    EP2860592A1|2013-10-09|2015-04-15|Nivarox-FAR S.A.|Assembly system using a planar resilient locking member|
    DE102015101004B4|2015-01-23|2017-05-18|Linamar Gmbh|Method for joining a function module and function module|
    CN105149863A|2015-07-01|2015-12-16|上海振华重工集团传动机械有限公司|Installation process of large end gear|
    CN105387061A|2015-11-30|2016-03-09|苏州安特实业有限公司|Stepped hollow shaft|
    CN105921630A|2016-06-29|2016-09-07|长沙天和钻具机械有限公司|Assembling process of concentric drilling tool hole reaming sleeve assembly|
    CN106337703B|2016-11-02|2018-07-20|成都西菱动力科技股份有限公司|A kind of thermal coupling camshaft and thermal coupling methods|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3717534A|DE3717534C2|1987-05-25|1987-05-25|
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