车钩上锁销连接装置改进建议张子忠，谷凤林，魏国有铁路货车所使用的上作用式车钩，其钩提杆与锁销链、锁销链与上锁销的连接装置称为上锁销连接装置，现均采用马蹄环连接。此种连接方法使用已经有几十年历史，其运用中的弊病已逐渐暴露出来，现略述如下：（１）由于采用... Improvements on the Coupling of the Locking Pin on the Coupler ZHANG Zi-zhong, GU Feng-lin, WEI Guo-you The upper-type coupler used in railway wagons is characterized in that the connecting device of the hook strut and the lock pin chain, the lock pin chain and the locking pin is called a locking pin connecting device , Are now used horseshoe ring connection. This connection method has been used for several decades of history, the shortcomings of its use has gradually exposed, are summarized as follows: (1) As a result of ...