Rack and pinion gear and process of fabrication
    3.
    发明授权
    Rack and pinion gear and process of fabrication 失效
    机架和小齿轮及制造工艺

    公开(公告)号:US4588336A

    公开(公告)日:1986-05-13

    申请号:US724797

    申请日:1985-04-19

    IPC分类号: B23F1/06 B23F21/18 F16H19/00

    摘要: A rack and pinion gear having helical teeth. A conical hob is employed for cutting recessed rack teeth in the work piece by continuously engaging the hob and work piece as the work piece moves longitudinally beneath (or with respect to) the rotating hob. To mate with the helical teeth in the rack, a helical gear having rounded or arcuate teeth is provided.

    摘要翻译: 具有螺旋齿的齿条和小齿轮。 当工件纵向移动(或相对于)旋转的滚刀时,通过连续地接合滚刀和工件来采用锥形滚刀来切割工件中的凹槽齿。 为了配合齿条中的螺旋齿,提供了具有圆形或弓形齿的斜齿轮。

    Rotating machine tool and process for cutting gearwheels with asymmetrical teeth

    公开(公告)号:US11338380B2

    公开(公告)日:2022-05-24

    申请号:US15767776

    申请日:2016-10-11

    摘要: A rotating cutting tool to cut asymmetrical teeth in a gearwheel in which each tooth (21) has an active flank (A) with a convex profile meshing with the profile of a tooth of an opposing gearwheel meshing with the gearwheel and a secondary concave flank (S), provided with teeth (11) on a generally helical path which extends from one side to the other with respect to a median cross-section (M-M) of the tool which is intended to be intersected by the radius Rp of the gearwheel which is at right angles to the axis of rotation of the tool working on the gearwheel to cut its teeth. The helical teeth have a first flank (CA) which is intended to cut the said active flank (A) of the gearwheel teeth and a second flank (CS) intended to cut the secondary flank (S), the pitch (P1) between the first flank (CA) of the helical teeth being constant and the pitch (P2) of the second flank of the teeth being smaller than the pitch (P1).