Constant velocity universal joint and cage thereof

• Main Authors: NISHIKAWA TSUBASA, KOBAYASHI TOMOSHIGE, FUJIO TERUAKI, FUNAHASHI MASASHI
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2020
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

According to the present invention, a cage (9) of a constant velocity universal joint A has a window section (8) accommodating a ball (7) and is disposed between an outer spherical surface (2) of an inner ring (3) and an inner spherical surface (5) of an outer ring (6). Localized heat treatment is performed on the window section (8) excluding the contact surface with the ball (7), or on the area around the window section (8), a soft part (10) having a lower hardness than the contact surface with the ball (7) is provided, and the ductility of the soft part (10) increases toughness, thereby suppressing the occurrence or propagation of cracks caused by dynamic loading. 等速万向联轴器A的隔圈(9)夹设在内圈(3)的外球面(2)与外圈(6)的内球面(5)之间，具有收容滚珠(7)的窗部(8)，在除与滚珠(7)接触的接触面以外的窗部(8)或其周围实施局部热处理，设置硬度比与滚珠(7)接触的接触面的硬度低的软质部(10)，利用其延展性提高韧性来抑制针对动态载荷的裂纹的产生及裂纹的发展。