液压缸头尾联结销轴的结构设计是个很常见的问题,但往往不被工程师重视,导致出现一些结构不合理的现象。如图1(a)所示结构,用一个带卡板槽的光滑圆柱销轴1连接液压缸活塞杆头6和机架7,销轴上装配有关节轴承5,销轴的轴向和周向定位用卡板3固定。由于结构设计不合理,在装配 Structural design of the cylinder head and tail coupling pin is a common problem, but often not paid attention to by engineers, resulting in some irrational structure. As shown in Fig.1 (a), a smooth cylinder pin 1 with a card slot is used to connect the hydraulic cylinder piston rod head 6 and the frame 7. The pin shaft is provided with a joint bearing 5, the axial direction and the periphery of the pin To the positioning card 3 is fixed. Due to unreasonable structural design, assembly