起重运输机械
起重運輸機械
기중운수궤계
HOISTING AND CONVEYING MACHINERY
2014年
8期
82-85
,共4页
升降式输送机%启动时间%制动时间%动态特性%横向载荷
升降式輸送機%啟動時間%製動時間%動態特性%橫嚮載荷
승강식수송궤%계동시간%제동시간%동태특성%횡향재하
lifting conveyor%starting time%braking time%dynamic property%horizontal load
由于升降式输送机在输送启停过程中会产生惯性作用力，其作为横向载荷作用在丝杠升降机上，使得丝杠升降机中滚珠丝杠应力极值大幅度提升，通过ADAMS软件建立升降式输送机虚拟样机模型，并对启停过程进行动态特性分析，得到启停时间对动态特性的变化规律，提出了导向支撑轮机构以减小丝杠升降机应力极值。实践表明，通过导向支撑轮增加丝杠升降机伸出端的支撑，大大改善其受力状况并降低其应力极值，对于延长升降机的工作寿命，提高其工作可靠性具有参考意义。
由于升降式輸送機在輸送啟停過程中會產生慣性作用力，其作為橫嚮載荷作用在絲槓升降機上，使得絲槓升降機中滾珠絲槓應力極值大幅度提升，通過ADAMS軟件建立升降式輸送機虛擬樣機模型，併對啟停過程進行動態特性分析，得到啟停時間對動態特性的變化規律，提齣瞭導嚮支撐輪機構以減小絲槓升降機應力極值。實踐錶明，通過導嚮支撐輪增加絲槓升降機伸齣耑的支撐，大大改善其受力狀況併降低其應力極值，對于延長升降機的工作壽命，提高其工作可靠性具有參攷意義。
유우승강식수송궤재수송계정과정중회산생관성작용력，기작위횡향재하작용재사강승강궤상，사득사강승강궤중곤주사강응력겁치대폭도제승，통과ADAMS연건건립승강식수송궤허의양궤모형，병대계정과정진행동태특성분석，득도계정시간대동태특성적변화규률，제출료도향지탱륜궤구이감소사강승강궤응력겁치。실천표명，통과도향지탱륜증가사강승강궤신출단적지탱，대대개선기수력상황병강저기응력겁치，대우연장승강궤적공작수명，제고기공작가고성구유삼고의의。
The lifting conveyor will produce the inertia force during the starting and braking process,which is applied to the lead screw lift as the horizontal load,so that the extreme value of the stress of the rolling lead screw in the lead screw lift rises by a large margin.The virtual prototype model for the lifting conveyor is built by ADAMS to perform dynamic prop-erty analysis for the starting and braking process in order to work out the change rule of start-stop time to the dynamic be-havior.The guiding support wheel mechanism is put forward to reduce the stress extreme value of the screw lift.It's indicated that the guiding support wheel can be used to facilitate to support the extending end of the screw lift,to significantly im-prove the load-carrying condition and decrease the stress extreme value,which can provide reference for extending the serv-ice life of the lift and advancing its working reliability.
