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公开(公告)号：US08851869B2
公开(公告)日：2014-10-07
申请号：US13705596
申请日：2012-12-05
申请人： JTEKT Corporation
CPC分类号： F04C2/103 , F04C2/084 , F04C2/102 , F04C2250/20
摘要： In an internal gear pump that includes an inner gear having outer teeth and an outer gear having inner teeth, either the inner or outer teeth have a shape based on a tooth shape that is respectively formed by a generating curve of the outer or inner teeth. The inner teeth are arc-shaped, the outer teeth are curved-shaped, and both end sections of the curved shape are arc-shaped. If a radius of the arc shape of the inner teeth is set as ro, a radius of the arc shape of each of the corner sections is set as ri, a diameter of a pitch circle of the inner teeth is set as dp, and the number of the inner teeth is set as z, the inner gear and the outer gear each has a shape that satisfies a relationship established by following equations: 1.6>ro/(dp/z)>1.0; and ro/(dp/z)>ri/(dp/z)≧0.13. Each of the inner teeth is provided so that an intersecting point between one of arcs that follow the first arc shapes of the adjacent inner teeth and the pitch circle of the inner teeth and in proximity to the other arc is located outside of the other arc.
摘要翻译： 在包括具有外齿的内齿轮和具有内齿的外齿轮的内齿轮泵中，内齿或外齿都具有基于由外齿或内齿的产生曲线分别形成的齿形的形状。 内齿是弧形的，外齿是弧形的，弯曲形状的两个端部都是弧形的。 如果将内齿的圆弧的半径设为ro，则将各角部的圆弧形状的半径设为ri，将内齿的节圆的直径设定为dp， 内齿数被设定为z，内齿轮和外齿轮各自具有满足以下等式建立的关系的形状：1.6> ro /（dp / z）> 1.0; （dp / z）> ri /（dp / z）≥0.13。 每个内齿被设置成使得跟随相邻内齿的第一弧形的弧之一和内齿的节圆之间并且接近另一个弧的弧之间的交叉点位于另一弧的外侧。
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公开(公告)号：US11059115B2
公开(公告)日：2021-07-13
申请号：US16340729
申请日：2017-10-11
申请人： JTEKT CORPORATION
发明人： Daichi Kanda , Takaaki Hashimoto , Yuji Sasaki , Yoshihiko Yamada , Hisashi Otani , Yoshitaro Ohsaki
摘要： A gear machining apparatus creates a gear on a workpiece W by moving a gear cutting tool relatively with respect to the workpiece along the direction of the rotation axis of the workpiece W while synchronously rotating the gear cutting tool and the workpiece. One of a workpiece rotation speed controlling portion and a tool rotation speed controlling portion varies the rotation speed of one of the workpiece and the gear cutting tool and the other one of the workpiece rotation speed controlling portion and the tool rotation speed controlling portion synchronizes the rotation speed of the other one of the workpiece and the gear cutting tool with one of the rotation speed of the workpiece and the gear cutting tool.
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公开(公告)号：US20130149180A1
公开(公告)日：2013-06-13
申请号：US13705596
申请日：2012-12-05
申请人： JTEKT Corporation
IPC分类号： F04C2/10
CPC分类号： F04C2/103 , F04C2/084 , F04C2/102 , F04C2250/20
摘要： In an internal gear pump that includes an inner gear having outer teeth and an outer gear having inner teeth, either the inner or outer teeth have a shape based on a tooth shape that is respectively formed by a generating curve of the outer or inner teeth. The inner teeth are arc-shaped, the outer teeth are curved-shaped, and both end sections of the curved shape are arc-shaped. If a radius of the arc shape of the inner teeth is set as ro, a radius of the arc shape of each of the corner sections is set as ri, a diameter of a pitch circle of the inner teeth is set as dp, and the number of the inner teeth is set as z, the inner gear and the outer gear each has a shape that satisfies a relationship established by following equations: 1.6>ro/(dp/z)>1.0; and ro/(dp/z)>ri/(dp/z)≧0.13. Each of the inner teeth is provided so that an intersecting point between one of arcs that follow the first arc shapes of the adjacent inner teeth and the pitch circle of the inner teeth and in proximity to the other arc is located outside of the other arc.
摘要翻译： 在包括具有外齿的内齿轮和具有内齿的外齿轮的内齿轮泵中，内齿或外齿都具有基于由外齿或内齿的产生曲线分别形成的齿形的形状。 内齿是弧形的，外齿是弧形的，弯曲形状的两个端部都是弧形的。 如果将内齿的圆弧的半径设为ro，则将各角部的圆弧形状的半径设为ri，将内齿的节圆的直径设定为dp， 内齿数被设定为z，内齿轮和外齿轮各自具有满足以下等式建立的关系的形状：1.6> ro /（dp / z）> 1.0; 和/（dp / z）> ri /（dp / z）> = 0.13。 每个内齿被设置成使得跟随相邻内齿的第一弧形的弧之一和内齿的节圆之间并且接近另一个弧的弧之间的交叉点位于另一弧的外侧。
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