轻型遥控人工林集材索道力学分析及线路设计

通过对轻型遥控人工林集材索道沿线路各区段起重提升工序中牵引索紧边、松边的力学分析,探明索道在接近下支点线路区段,牵引索在绞盘机摩擦卷筒上打滑的机理;通过对大倾角集材索道重载顺坡或逆坡运行条件下的力学分析,阐明跑车在接近上支点及接近索道最低点时,摩擦卷筒制动失效、吊运木材落钩的机理。提出符合免滑条件、运载安全可靠的轻型遥控人工林集材索道线路设计方案。在人工林伐区生产试验基础上,对索道配重问题进行研究,优化索道技术参数,确保集材索道科学合理地安装架设,经济高效及安全可靠地营运。

Mechanics Analysis and Route Design of Light-duty Remote Control Ropeway Suitable for Plantation Skidding

A study was performed to prove up the mechanism of sliding of tow traction ropes on friction winding drum of winch near the lower fulcrum route section by analyzing the mechanics of closed side and loosed side of tow ropes in every section of hoisting working procedure along route of light-duty remote control ropeway suitable for plantation skidding.Moreover,the mechanisms of brake failure of the friction winding drum and lifting lumbers dropping in hook were clarified when a car was close to the upper pivot or the lowest point of ropeway through mechanics analysis of the skidding ropeway with high obliquity in over loading condition of running down slope or adverse slope.A design project of light-duty remote control ropeway for plantation skidding was presented,which could satisfy with exception slide condition and ensure safety and reliability during log carrying.The technical parameters for remote control car ropeway was optimized according to weight counterbalance of ropeway based on the productive test in cutting areas in plantations,in order to scientifically and reasonably set remote control car skidding ropeways;thereby to make the ropeways work economically,efficiently,safely and reliably.