Methods for shaping the teeth of spherical gears
    121.
    发明授权
    Methods for shaping the teeth of spherical gears 失效
    球形齿轮成形方法

    公开(公告)号:US5878492A

    公开(公告)日:1999-03-09

    申请号:US810650

    申请日:1997-03-03

    CPC classification number: F16D3/185 F16H1/006 Y10T29/49467

    Abstract: The disclosed gear system provides distinctive forms of gearing for directly transmitting substantially constant velocity between two shafts, while allowing the angle between the shafts to vary (e.g., by even more than 80.degree.) in any plane during operation. Several forms of gear teeth appropriate for the system are specifically detailed and applied in the design of constant-velocity joints.

    Abstract translation: 所公开的齿轮系统提供用于在两个轴之间直接传递基本恒定速度的传动装置的特殊形式,同时在操作期间允许轴之间的角度在任何平面中变化(例如甚至超过80°)。 适用于该系统的几种形式的齿轮齿特别详细并应用于等速度接头的设计中。

    Differential apparatus
    122.
    发明授权
    Differential apparatus 失效
    差分仪

    公开(公告)号:US5868643A

    公开(公告)日:1999-02-09

    申请号:US542934

    申请日:1995-10-13

    CPC classification number: F16H48/285 F16H55/0806

    Abstract: A differential apparatus includes a differential casing, a pair of side gears and plural pairs of pinion gears. The pinion gears are accommodated in bores formed in the differential casing, respectively. Each pinion gear has an outer diameter smaller than that of a standard gear to be determined corresponding to predetermined gear specifications. With such a forming of the pinion gears, the tip circular thickness of each pinion gear is increased, so that surface pressure at respective tips of the pinion gears is reduced to improve the seizure resistant capability.

    Abstract translation: 差速装置包括差速器壳体,一对侧齿轮和多对小齿轮。 小齿轮分别容纳在差速器壳体中形成的孔中。 每个小齿轮的外径小于相应于预定齿轮规格确定的标准齿轮的外径。 通过小齿轮的这种形成,每个小齿轮的尖端圆形厚度增加,从而减小了小齿轮的各个尖端处的表面压力,以提高抗咬合能力。

    Flexible meshing type gear device with negative deflection passing tooth
profile
    124.
    发明授权
    Flexible meshing type gear device with negative deflection passing tooth profile 失效
    具有负偏转通过齿廓的挠性啮合式齿轮装置

    公开(公告)号:US5782143A

    公开(公告)日:1998-07-21

    申请号:US687485

    申请日:1996-10-03

    Inventor: Shoichi Ishikawa

    CPC classification number: F16H55/0833 F16H2049/006 Y10T74/19

    Abstract: The amount of radial flexing (w) in a basic section defined perpendicular to the axis of the flexible external gear (3) at a prescribed point on the tooth trace of the flexible external gear (3) is defined to be an amount of negative deviation flexing smaller than the normal amount of flexing (W.sub.0) The rigid internal gear (2) and the flexible external gear (3) are both spur gears and the number of teeth of the flexible external gear (3) is 2n (n being a positive integer) fewer than that of the rigid internal gear (2). The working tooth profile of one of the gears (2, 3) is defined to be a convex curve whose shape is or approximates a convex curve (L2(O,B)) obtained by similarity transformation of a peak portion (L1(O,A) of the rack-approximated moving path (L1) of a tooth of the gear with respect to the other gear in the basic section of the tooth trace perpendicular to the axis, the portion being convex relative to the other gear, at an enlargement ratio (.lambda.) using the apex of the moving path as the origin. The working tooth profile of the other gear is defined to be a concave curve whose shape is a concave curve (L3(O,C)) obtained by similarity transformation of the same portion of the moving path at an enlargement ratio (.lambda.+1) using the apex of the moving path as the origin. The meshing of the two tooth profiles is pass messing enabling continuous contact and the ability to retain a lubricating oil film between the tooth surfaces is enhanced.

    Abstract translation: PCT No.PCT / JP94 / 02141 Sec。 371日期:1996年10月3日 102(e)日期1996年10月3日PCT 1994年12月19日PCT PCT。 公开号WO96 / 19683 日期1996年6月27日在柔性外齿轮(3)的齿迹上的规定点处垂直于柔性外齿轮(3)的轴线限定的基本部分中的径向弯曲(w)的量被定义为 一定量的负偏差弯曲小于正常弯曲量(W0)刚性内齿轮(2)和柔性外齿轮(3)均为正齿轮,柔性外齿轮(3)的齿数为2n (n为正整数)小于刚性内齿轮(2)的齿数。 齿轮(2,3)中的一个的工作齿廓被定义为凸曲线,其形状是或近似于通过峰部分(L1(O,B))的相似变换获得的凸曲线(L2(O,B) A)齿轮相对于垂直于轴线的齿迹的基本部分中的另一个齿轮的齿的齿条近似移动路径(L1),该部分相对于另一个齿轮凸起,放大 比例(lambda),其中齿轮的工作齿廓定义为凹形曲线,其形状是通过相似变换获得的凹曲线(L3(O,C)) 使用移动路径的顶点作为原点,以增大比(lambda +1)的移动路径的相同部分。两个齿廓的啮合通过混合,使得能够连续接触并且能够将润滑油膜保持在 齿面增强。

    Differential apparatus
    125.
    发明授权
    Differential apparatus 失效
    差分仪

    公开(公告)号:US5728025A

    公开(公告)日:1998-03-17

    申请号:US627351

    申请日:1996-04-05

    CPC classification number: F16H48/285

    Abstract: A differential apparatus includes a differential casing, a pair of helical side gears and a pair of helical pinion gears. The helical pinion gears are accommodated in bores formed in the differential casing, respectively. The long and short helical pinion gears have respective first gear portions meshing with the side gears, respectively, and second gear portions meshing with each other. Each gear tooth of the long pinion gear is so tapered that tip thickness of the gear tooth is gradually decreased from an axial end of the gear portion toward the other gear portion. Even if the long pinion gear is inclined by meshing reactive forces, it is possible to ensure sufficient tooth bearing areas at respective tooth faces of the pinion gears.

    Abstract translation: 差速装置包括差速器壳体,一对螺旋侧齿轮和一对螺旋小齿轮。 螺旋小齿轮分别容纳在形成在差速器壳体中的孔中。 长短的螺旋小齿轮分别具有与侧齿轮啮合的相应的第一齿轮部分和彼此啮合的第二齿轮部分。 长齿轮的每个齿轮齿是锥形的,齿轮齿的尖端厚度从齿轮部分的轴向端向另一个齿轮部分逐渐减小。 即使长小齿轮通过啮合反作用力而倾斜,也可以确保小齿轮的相应齿面处的足够的齿承载区域。

    Gear structure for reduction gears
    126.
    发明授权
    Gear structure for reduction gears 失效
    减速机齿轮结构

    公开(公告)号:US5615579A

    公开(公告)日:1997-04-01

    申请号:US460682

    申请日:1995-06-02

    Inventor: Perng Shiow-Miin

    CPC classification number: F16H55/08 F16H2055/0893 Y10T74/19949 Y10T74/19972

    Abstract: A gear structure including an internal gear and an external gear meshed together and moved relative to each other through a rotary motion, the radius of the root arcs of the teeth of the external gear being M, which is the ratio between the diameter of the crest and the number of teeth, and being the line of arc in tangent with the crest arcs of each two adjacent teeth, the tooth form curve of the internal gear being obtained by connecting all engaging points at the crest arcs and root arcs of the external gear.

    Abstract translation: 包括内齿轮和外齿轮的齿轮结构通过旋转运动啮合并相对于彼此移动,外齿轮的齿根的半径为M,其是峰的直径之比 和齿数,并且是与每两个相邻齿的波峰相切的弧线,内齿轮的齿形曲线通过将外齿轮的弧形弧和根弧处的所有接合点连接而获得 。

    Method of making a modified elliptical gear
    127.
    发明授权
    Method of making a modified elliptical gear 失效
    修改椭圆齿轮的方法

    公开(公告)号:US5545871A

    公开(公告)日:1996-08-13

    申请号:US180684

    申请日:1994-01-11

    Inventor: Charles F. Carr

    CPC classification number: F16H35/02 F16H55/084 F16H2035/003

    Abstract: A modified elliptical gear defined by a modified elliptical shape having perpendicularly disposed major and minor axes, and bulged portions projecting outwardly beyond the contour of a true ellipse in peripheral regions between the major and minor axes. A computer is preferably used to rotate a simulated hobbing rack having a row of hobbing teeth around the modified elliptical shape. The outline of the hobbing rack is traced at selected positions during the rack rotation to produce a profile of a modified elliptical gear with projecting gear teeth. A topping shape is superimposed upon the gear profile to selectively top the gear teeth. The modified elliptical gear profile is transmitted to a machining device operable to produce a modified elliptical gear.

    Abstract translation: 由具有垂直设置的主轴和短轴的改进的椭圆形形状限定的修改的椭圆齿轮以及在主轴和短轴之间的周边区域中向外突出超过真椭圆轮廓的凸出部分。 优选地使用计算机来旋转具有围绕修改的椭圆形状的滚齿齿排的模拟滚齿架。 滚齿架的轮廓在机架旋转期间被跟踪在选定的位置,以产生具有突出齿轮齿的改进的椭圆齿轮的轮廓。 顶部形状叠加在齿轮轮廓上以选择性地顶部齿轮齿。 修改的椭圆齿轮轮廓被传送到可操作以产生修改的椭圆齿轮的加工装置。

    Gear tooth topological modification
    128.
    发明授权
    Gear tooth topological modification 失效
    齿轮拓扑修正

    公开(公告)号:US5315790A

    公开(公告)日:1994-05-31

    申请号:US998483

    申请日:1992-12-30

    Abstract: The topology of parallel axis gears, such as spur and helical gears is modified to produce quieter and more smoothly operating gear sets with more uniform load distribution. A finite element analysis of the gear in its operating mode is made to produce a plot of radial and tangential deflections of the pinion and gear tooth surfaces which will occur when the gears are loaded during operation. The resultant plot is then inverted to produce a plot, or set of coordinates, which will define the path of travel of the gear tooth grinding wheel, which path is a mirror image of the plot of the finite element analysis. The resulting gears, when subjected to operating loads, will thus be deflected tangentially and radially to their optimum operating, or theoretical true involute, positions so as to produce quieter, smoother, and more evenly loaded gear trains.

    Abstract translation: 平行轴齿轮(如直齿轮和斜齿轮)的拓扑结构被修改,以产生更均匀,更均匀的负载分布更加平稳的齿轮组。 在其操作模式下对齿轮进行有限元分析,以产生在操作期间装载齿轮时将发生的小齿轮和齿轮齿面的径向和切向偏转的曲线。 然后将所得到的图反转以产生绘图或坐标系,其将限定齿轮齿轮的行进路径,该路径是有限元分析图的镜像。 所产生的齿轮在经受操作载荷时将因此被切向地和径向地偏转到其最佳操作或理论真实的渐开线位置,以便产生更安静,更平滑和更均匀地装载的齿轮系。

    Non-involute gear
    129.
    发明授权
    Non-involute gear 失效
    非渐开线齿轮

    公开(公告)号:US5271289A

    公开(公告)日:1993-12-21

    申请号:US991648

    申请日:1992-12-16

    Abstract: A family of conjugate gear tooth profiles is taught in which the relative curvature is a maximum near center and decreases toward tip and flank, where sliding is greatest. In one embodiment the radii of curvature of the individual profiles are least at the pitch point and increase toward tip and flank. The permissible tooth heights are limited only by top lands and bottom lands; and any tooth-numbers can be used without resorting to unequal addendums, although unequal addendums can be used if desired.

    Abstract translation: 教授了一系列共轭齿轮齿廓,其中相对曲率在中心附近是最大值,并且朝向尖端和侧面减小,其中滑动最大。 在一个实施例中,单个轮廓的曲率半径最小在俯仰点处并且朝向尖端和侧面增加。 允许的牙齿高度仅由顶部土地和底部土地限制; 并且可以使用任何齿数而不使用不平等的附录,尽管如果需要,可以使用不等式的附录。

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