公开(公告)号：WO1989012760A1

公开(公告)日：1989-12-28

申请号：PCT/JP1989000604

申请日：1989-06-16

Applicant: KOYO SEIKO CO., LTD. ,  MIYAWAKI, Nobuyuki ,  KITAUCHI, Fukumitsu

Inventor： KOYO SEIKO CO., LTD.

IPC: F16C09/04

CPC classification number: F16C33/34 ,  F02B2075/025 ,  F16C9/04 ,  F16C2240/50 ,  Y10S384/913 ,  Y10T74/2142 ,  Y10T74/2162 ,  Y10T74/2173

Abstract: A structure for connecting together a crankshaft (1) rotating in a crank case in an engine and a connecting rod (5) connected at its one end (6) to the crankshaft (1) via a bearing (7) and at the other end to a piston (13) moving reciprocatingly in a cylinder (12) in the engine. The bearing (7) is provided between the outer circumferential surface of a crank pin (4) forming apart of the crankshaft (1) and the inner circumferential surface of a bore formed in a larger end portion (6) of the connecting rod (5) so as to pass the crank pin (4) therethrough, and consists of a plurality of needle rollers (8) and a retainer (9) positioning and retaining the needle rollers (8) at circumferentially regular intervals, the bearing (7) being lubricated with a lubricating oil contained in the mixture gas in the engine. In order to improve the seizure life, the needle rollers (8) are formed out of a ceramic material containing silicon nitride as a main component.

Abstract translation: 一种用于将在发动机中的曲轴箱中旋转的曲轴（1）和通过轴承（7）在其一端（6）连接到曲轴（1）的连杆（5）连接在一起的结构，并且在另一端 涉及在发动机中的气缸（12）中往复运动的活塞（13）。 轴承（7）设置在形成在曲轴（1）的曲柄销（4）的外周面与形成在连杆（5）的较大端部（6）中的孔的内周面之间 ），以使曲柄销（4）穿过其中，由多个滚针（8）和保持器（9）组成，定位和保持滚针（8）的周向规则间隔，轴承（7）为 用包含在发动机中的混合气体中的润滑油进行润滑。 为了提高咬住寿命，滚针（8）由含有氮化硅作为主要成分的陶瓷材料形成。