CASE OF SPEED REDUCER, SPEED REDUCER, AND INDUSTRIAL ROBOT

• Main Authors: KAMAGATA SHUICHI, MASUDA DAIKI
• Format: Patent
• Language: English; Japanese
• Published: 30.04.2021
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a case of a speed reducer, the speed reducer, and an industrial robot that can shorten machining work time of pin grooves and can enhance machining accuracy of the pin grooves.SOLUTION: A case 11 of a speed reducer comprises a case body 11a and a flange 11b. The case body 11a is formed in a cylindrical shape, and comprises a plurality of pin grooves 18 along an axial direction in an inner peripheral surface. The flange 11b comprises a high region at a predetermined distance from an outer peripheral surface of the case body 11a, and a low region 11b-L at a shorter distance from the outer peripheral surface than that of the high area. The flange 11b is arranged in a range in which the low region 11b-L covers a region equal to or larger than 80% of an axial region of the pin grooves 18.SELECTED DRAWING: Figure 4 【課題】ピン溝の加工作業時間を短縮し、かつ、ピン溝の加工精度を高めることができる減速機のケース、減速機、及び、産業用ロボットを提供する。【解決手段】減速機のケース１１は、ケース本体１１ａと、フランジ１１ｂと、を備えている。ケース本体１１ａは、円筒形状に形成され、内周面に軸方向に沿う複数のピン溝１８を有する。フランジ１１ｂは、ケース本体１１ａの外周面からの距離が所定の高位領域、及び、外周面からの距離が高位領域よりも短い低位領域１１ｂ−Ｌを有する。フランジ１１ｂは、低位領域１１ｂ−Ｌがピン溝１８の軸方向領域の８０％以上の領域を覆う範囲に配置されている。【選択図】図４