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本文介绍了为延长牙轮钻头轴承的使用寿命,提供一个从储油器装置到轴承,然后又回到储油器装置的循环润滑系统。图1是与本发明结构相一致的三牙轮密封轴承牙轮钻头图。图2是图1所示钻头的一个牙爪的润滑循环系统剖面图。图3是本发明的润滑循环系统的示意图。详细参阅附图1,图1中序号10是通常称为三牙轮密封轴承钻头。如图所示,钻头10包括钻头体11和上部螺纹12。螺纹12使钻头体10接到旋转钻杆的下端(未表示),钻
This article describes a circulating lubrication system that extends the life of a roller bit bearing by providing a return from the reservoir unit to the bearing and back to the reservoir unit. Figure 1 is a tri-cone seal bearing roller cone bit that is consistent with the structure of the present invention. Figure 2 is a cross-sectional view of the lubrication cycle of a claw of the bit shown in Figure 1. Figure 3 is a schematic view of the lubrication circulation system of the present invention. Referring to Figure 1 in detail, the numeral 10 in Figure 1 is commonly referred to as a tricot seal bearing bit. As shown, drill bit 10 includes a bit body 11 and an upper thread 12. The threads 12 allow the bit body 10 to be attached to the lower end (not shown) of the rotating drill rod, to be drilled