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针对斜巷上平车场防跑车装置存在的缺陷,设计了新型气动单向阻车器,使上平车场处于单向常闭状态,上行车时顺利通过,下行车时自动阻车。正常下行车时,必须按下气阀气动打开阻车器,车体驶过松开气阀,气缸自动复位,阻车器在回复力(重力)的作用下迅速恢复常闭状态;上行车时,车底部压下阻车臂,矿车顺利通过,车体驶过恢复常闭;发生溜车时,自动阻车。关键技术为阻车臂和气缸推杆连接形式为凸轮连接,凸轮轮廓为渐开线,凸轮轮廓对气缸的反作用力只沿气缸轴线方向,气缸只受轴向力,有效保护了气缸。系统具有防止误操作,减轻工人劳动强度,提高操作环境安全系数,安装方便成本低的优点。
In view of the defects of the anti-sports car device in Shangping parking lot in inclined lane, a new type of pneumatic one-way stopcart was designed to make Shangping depot unidirectional and normally closed. It passed smoothly while driving and stopped automatically when driving. Normal driving, you must press the pneumatic valve to open the car stop, the body passed the release valve, the cylinder automatically reset, the car stop in the recovery force (gravity) under the action of the rapid restoration of normally closed state; on the road , The bottom of the car pressed the resistance arm, the smooth passage of the car, the body through the restoration of normally closed; take the car, the automatic stop. The key technology is that the connection between the blocking arm and the cylinder push rod is a cam connection, the cam profile is involute, the reaction force of the cam profile to the cylinder is only along the cylinder axis, and the cylinder is only subjected to the axial force, effectively protecting the cylinder. The system has the advantages of preventing misoperation, reducing the labor intensity of workers, improving the safety factor of operating environment, and convenient installation and low cost.