Cam lobe material, camshaft using the same and method for producing cam lobe member
    3.
    发明申请
    Cam lobe material, camshaft using the same and method for producing cam lobe member 审中-公开
    凸轮轴材料,凸轮轴采用相同的方法制造凸轮凸缘部件

    公开(公告)号:US20070006828A1

    公开(公告)日:2007-01-11

    申请号:US10558624

    申请日:2004-07-28

    IPC分类号: F01L1/04

    摘要: The present invention provides a cam lobe material that is excellent in sliding characteristics, such as wear resistance, scuffing resistance and pitting resistance, and can be advantageously used in engines to which high loads are applied, and a method of manufacturing the cam lobe material. The above-described task is fulfilled by providing a cam lobe material that is formed from an iron-based sintered alloy that contains 0.3 to 5.0 mass % Ni, 0.5 to 1.2 mass % C, 0.02 to 0.3 mass % of at least either of B and P, and incidental impurities as the balance, and has a hardness of a peripheral surface of not less than HRC 50 and a density of not less than 7.5 g/cm3. The iron-based sintered alloy can further contain not more than 2.5 mass % Mo. The above-described task can also be fulfilled by a method of manufacturing the cam lobe material, that a compression molding step and a sintering step are repeated at least twice, the compression molding step involving compression molding iron-based alloy powders prepared so as to provide the composition of the ferrous sintered alloy in a prescribed cam lobe shape, and the sintering step involving sintering the compression molded compact body, and that the sintered body is subjected to quench and tempering treatment.

    摘要翻译: 本发明提供一种滑动特性优异的凸轮凸起材料,例如耐磨性,抗磨损性和耐点蚀性,并且可以有利地用于施加高负荷的发动机中,以及制造凸轮凸角材料的方法。 通过提供一种由铁基烧结合金形成的凸轮凸缘材料来实现上述任务,该铁基烧结合金含有0.3〜5.0质量%的Ni,0.5〜1.2质量%的C,0.02〜0.3质量%的B 和P,作为余量的偶然杂质,并且具有不小于HRC 50的周边表面的硬度和不小于7.5g / cm 3的密度。 铁基烧结合金还可以含有不超过2.5质量%的Mo。上述任务也可以通过制造凸轮凸起材料的方法来实现,压缩模制步骤和烧结步骤重复至少两次 所述压缩成形工序涉及将所述铁基合金粉末压缩成型,以提供规定的凸轮形状的所述铁质烧结合金的组成,所述烧结工序包括烧结所述压缩成型体,并且所述烧结体为 进行淬火和回火处理。

    Camshaft
    4.
    发明授权
    Camshaft 失效
    凸轮轴

    公开(公告)号:US5009123A

    公开(公告)日:1991-04-23

    申请号:US347224

    申请日:1989-05-04

    摘要: A camshaft comprising a steel shaft and a plurality of cam pieces fitted on the shaft. The cam piece is made from a sintering alloy material and bonded to the shaft by sintering. The shaft has pin-receiving holes perpendicular to the axis of the shaft. The cam piece is formed on its side surface with a pin-receiving groove. A positioning pin has a lower portion tightly fitted in the hole of the shaft and an upper portion fitted in the groove to position the cam piece with respect to the shaft during sintering.

    摘要翻译: 凸轮轴,包括钢轴和安装在所述轴上的多个凸轮件。 凸轮件由烧结合金材料制成,并通过烧结结合到轴上。 轴具有垂直于轴的轴线的销接收孔。 凸轮片在其侧表面上形成有销接收槽。 定位销具有紧密地装配在轴的孔中的下部和装配在凹槽中的上部,以在烧结期间相对于轴定位凸轮件。

    Composite camshaft and method of making the same
    5.
    发明授权
    Composite camshaft and method of making the same 失效
    复合凸轮轴及其制作方法

    公开(公告)号:US4732310A

    公开(公告)日:1988-03-22

    申请号:US740845

    申请日:1985-05-17

    摘要: A composite camshaft is formed by brazing a journal to a shaft. After a brazing material is fitted into an annular groove formed on the center of the inner peripheral surface of a shaft-receiving bore in the journal, the journal is fitted onto the shaft and the brazing material is heated until it melts. The molten brazing material consequently completely fills a clearance between the inner peripheral of the shaft-receiving bore in the journal and the outer peripheral surface of the shaft, ensuring that the journal and the shaft are firmly connected.

    摘要翻译: PCT No.PCT / JP84 / 00127 Sec。 371日期1985年5月17日 102(e)日期1985年5月17日PCT提交1984年3月23日PCT公布。 第WO85 / 01556号公报 日期:1985年04月11日。复合凸轮轴通过将轴颈钎焊到轴上而形成。 在钎焊材料装配到形成在轴颈中的轴接收孔的内周表面的中心的环形槽中之后,将轴颈安装到轴上,并且钎焊材料被加热直到其熔化。 因此,熔融钎焊材料完全填充轴颈中的轴接收孔的内周和轴的外周表面之间的间隙,确保轴颈和轴牢固地连接。

    Hollow cam shaft
    7.
    发明授权
    Hollow cam shaft 失效
    中空凸轮轴

    公开(公告)号:US06295893B1

    公开(公告)日:2001-10-02

    申请号:US09492129

    申请日:2000-01-27

    IPC分类号: B21D5384

    摘要: A hollow cam shaft is composed of a hollow shaft having an inner hollow portion and an end piece which is pressure-welded to at least one end of the hollow shaft. The end piece comprises an end member which is pressure-welded to the one end of the hollow shaft and an enclosure member extending from the end member in an axial direction thereof so as to be inserted into the inner hollow portion of the hollow shaft at a time of pressure welding to define an enclosure space in the inner hollow portion of the hollow shaft. The enclosure member comprises a sealing portion having an outer shape substantially the same as an inner shape of the hollow shaft and a connection portion connecting an end surface of the end member of the end piece and the sealing portion so as to define said enclosure space between the enclosure member and the hollow shaft into which a burr generated at the pressure welding time is enclosed.

    摘要翻译: 空心凸轮轴由中空轴构成,该空心轴具有内部中空部分和端部件,其被压焊到中空轴的至少一端。 端件包括被压焊到中空轴的一端的端部构件和从端部构件在其轴向方向上延伸的外壳构件,以便在空心轴的内部中空部分中插入 压力焊接的时间来限定空心轴的内部中空部分中的封闭空间。 外壳构件包括具有与中空轴的内部形状基本相同的外部形状的密封部分和连接端部件的端部构件的端面与密封部分之间的连接部分,以便限定所述封闭空间 封闭构件和封闭在压力焊接时产生的毛刺的空心轴。

    Camshaft and method for producing the same
    8.
    发明授权
    Camshaft and method for producing the same 失效
    凸轮轴及其制造方法

    公开(公告)号:US5064608A

    公开(公告)日:1991-11-12

    申请号:US651730

    申请日:1991-02-05

    摘要: A method for producing a camshaft having a tubular steel shaft and a sintered cam piece joined to the shaft. The sintered cam piece has iron tetroxide film at its surface. The camshaft is produced by assembling a powder compact to the steel shaft to provide a camshaft assembly, sintering the assembly to provide an integral assembly, correcting bending to the assembly, annealing the assembly, grinding the cam piece and effecting vaporization treatment to the assembly at a temperature lower than the annealing temperature.

    摘要翻译: 一种用于制造凸轮轴的方法,所述凸轮轴具有连接到所述轴的管状钢轴和烧结凸轮件。 烧结凸轮件的表面具有四氧化二铁膜。 凸轮轴通过将粉末压块组装到钢轴上来产生,以提供凸轮轴组件,烧结组件以提供整体组件,校正弯曲到组件,退火组件,研磨凸轮件并对组件进行蒸发处理 温度低于退火温度。

    ROLLING BEARING AND MANUFACTURING METHOD THEREOF
    9.
    发明申请
    ROLLING BEARING AND MANUFACTURING METHOD THEREOF 审中-公开
    滚动轴承及其制造方法

    公开(公告)号:US20130148919A1

    公开(公告)日:2013-06-13

    申请号:US13699086

    申请日:2011-05-19

    摘要: The present invention provides a rolling bearing which is excellent in strength, rigidity, heat resistance, and dimensional accuracy while being able to hold rolling elements in a stable manner and reduce manufacturing cost without degrading performance as a bearing and a manufacturing method for the rolling bearing. To achieve the object, the present invention adopts a rolling bearing including a cage provided with a plurality of pockets for housing and hold the rolling elements arranged at specific intervals in a circumferential direction in a peripheral wall of a cylindrical member. The cage is formed integrally by metal powder injection molding; and the cage includes a housing space for the rolling elements and a rolling-element fall-out prevention structure is formed by applying compressive working to an outer edge of the housing space in a direction from an outer circumferential surface toward a radial center of the cage.

    摘要翻译: 本发明提供一种能够以稳定的方式保持滚动元件并且降低制造成本而不降低作为轴承的性能而具有优异的强度,刚性,耐热性和尺寸精度的滚动轴承以及用于滚动轴承的制造方法 。 为了实现该目的,本发明采用一种滚动轴承,该滚动轴承包括设置有多个凹穴的保持架,用于容纳并保持沿圆周方向以特定间隔布置的滚动元件在圆柱形构件的周壁中。 笼子通过金属粉末注射成型一体形成; 并且所述保持架包括用于所述滚动元件的容纳空间,并且通过在所述壳体的外周面朝向所述保持架的径向中心的方向上对所述容纳空间的外边缘施加压缩加工而形成滚动元件防脱结构 。

    Camshaft
    10.
    发明授权
    Camshaft 失效
    凸轮轴

    公开(公告)号:US5044224A

    公开(公告)日:1991-09-03

    申请号:US603307

    申请日:1990-10-25

    摘要: A camshaft comprising a steel shaft and a plurality of cam pieces fitted on the shaft. The cam piece is made from a sintering alloy material and bonded to the shaft by sintering. The shaft has pin-receiving holes perpendicular to the axis of the shift. The cam piece is formed on its side surface with a pin-receiving groove. A positioning pin has a lower portion tightly fitted in the hole of the shaft and an upper portion fitted in the groove to position the cam piece with respect to the shaft during sintering.

    摘要翻译: 凸轮轴,包括钢轴和安装在所述轴上的多个凸轮件。 凸轮件由烧结合金材料制成,并通过烧结结合到轴上。 轴具有垂直于移动轴的销接收孔。 凸轮片在其侧表面上形成有销接收槽。 定位销具有紧密地装配在轴的孔中的下部和装配在凹槽中的上部,以在烧结期间相对于轴定位凸轮件。