起重运输机械
起重運輸機械
기중운수궤계
HOISTING AND CONVEYING MACHINERY
2014年
1期
58-62
,共5页
程强%李必文%周炬%金坤文
程彊%李必文%週炬%金坤文
정강%리필문%주거%금곤문
升降平台%偏载%闷车%同步控制%消隙式刚性同步机构
升降平檯%偏載%悶車%同步控製%消隙式剛性同步機構
승강평태%편재%민차%동보공제%소극식강성동보궤구
lift platform%unbalance loading%stuffy cart%synchronous control%anti-backlash rigid synchronous struc-ture
针对地下车库自行式升降平台因偏载而产生的闷车现象,设计制造出一种齿轮齿条消隙式刚性同步机构,其具有结构简单、同步响应速度快、稳定可靠等特点。进行了升降平台偏载条件下的力学分析,指出桁架变形量对传动装置的影响不足以引发负载运行过程中的闷车现象,液压马达在偏载条件下的启动阻力过大、输出功率超出液压马达出厂设置值是导致发生闷车现象的根本原因。阐述了齿轮齿条消隙式刚性同步机构的结构和工作原理,对同步机构进行了有限元优化设计,提升了该机构的性能质量比。
針對地下車庫自行式升降平檯因偏載而產生的悶車現象,設計製造齣一種齒輪齒條消隙式剛性同步機構,其具有結構簡單、同步響應速度快、穩定可靠等特點。進行瞭升降平檯偏載條件下的力學分析,指齣桁架變形量對傳動裝置的影響不足以引髮負載運行過程中的悶車現象,液壓馬達在偏載條件下的啟動阻力過大、輸齣功率超齣液壓馬達齣廠設置值是導緻髮生悶車現象的根本原因。闡述瞭齒輪齒條消隙式剛性同步機構的結構和工作原理,對同步機構進行瞭有限元優化設計,提升瞭該機構的性能質量比。
침대지하차고자행식승강평태인편재이산생적민차현상,설계제조출일충치륜치조소극식강성동보궤구,기구유결구간단、동보향응속도쾌、은정가고등특점。진행료승강평태편재조건하적역학분석,지출항가변형량대전동장치적영향불족이인발부재운행과정중적민차현상,액압마체재편재조건하적계동조력과대、수출공솔초출액압마체출엄설치치시도치발생민차현상적근본원인。천술료치륜치조소극식강성동보궤구적결구화공작원리,대동보궤구진행료유한원우화설계,제승료해궤구적성능질량비。
In view of the stuffy cart problem caused by unbalance loading of the self-propelled lift platform of under-ground garage,a pinion-rack anti-backlash rigid synchronous structure is designed and produced,with characteristics of simple structure,fast and reliable synchronous response speed,etc. The mechanical analysis is performed under the condi-tion of unbalance loading of the lift platform,to indicate that the impact of truss deformation on the transmission device will not cause stuffy cart during loading operation,while the root cause of stuffy cart is too large starting resistance of the hy-draulic motor under the unbalance loading condition and the output power exceeding the factory setting values of the hydrau-lic motor. The paper also describes the structure and working theory of pinion-rack anti-backlash rigid synchronous struc-ture,with finite element optimal design performed for the synchronous structure,which has improved the performance-qual-ity ratio of such structure.