新型運輸絞車(chē)的動(dòng)力學(xué)仿真

第33卷第09期煤礦機械Vol. 33No 092012年09月Coal Mine Machinery新型運輸絞車(chē)的動(dòng)力學(xué)仿真孫生中煤科工集團重慶研究院,重慶400039)摘要;新型運輸絞車(chē)與過(guò)往絞車(chē)相比,克服了它的不足和缺陷,另外還具有結構呈長(cháng)條形、牽引力大、軟啟動(dòng)等優(yōu)點(diǎn),比較適合井下狹窄的作業(yè)空間,而且操作方便、安全。以』Y-1型新型運輸絞車(chē)為例,建立三維實(shí)體模型,利用 ADAMS軟件對其進(jìn)行了運動(dòng)學(xué)及動(dòng)力學(xué)的仿真分析,分析各個(gè)零部件之間的運動(dòng)關(guān)系和受力情況,為今后該類(lèi)絞車(chē)的進(jìn)一步研究提供必要的參考和理論指導關(guān)鍵詞:運輸絞車(chē); ADAMS;動(dòng)力學(xué)仿真中圖分類(lèi)號:TD526;TP391文獻標志碼:A文章編號:1003-0794(2012)09-0089-03Dynamics Simulation of New Transport WinchSUN ShengChina Coal Science and Industry Group Chongqing Research Institute, Chongqing 400039, China)Abstract: Compared with traditional transport winch, the new transport winch not only has overcomeinsufficiency and shortcoming, but also has advantage of soft start, long and narrow structure as well aslarge traction force and so on, which can adapt to narrow space of underground coal mine very well,and also, it is safe and convenient. Taking the JY-1 new transport winch as an object of studying, theolid model and assembly design were done by software and then it was carried on kinematics anddynamics simulation by use of ADAMS software after obtaining virtual prototype, and movementrelationships and force conditions between parts were analyzed after that. It is provided a reference fora further study on new transport winchKey words: transport winch; ADAMS; dynamic simulation1新型運輸絞車(chē)JY-1型新型絞車(chē)整體采用了“圓錐齒輪傳動(dòng)行星齒輪軟傳動(dòng)-圓柱過(guò)橋齒輪傳動(dòng)-圓柱過(guò)橋齒輪傳動(dòng)”的閉環(huán)傳動(dòng)系統,如圖1所示。它克服了以往絞車(chē)如慢速絞車(chē)、回柱絞車(chē)等存在的不足和缺陷。圖2JY-1型新型運輸絞車(chē)的虛擬樣機模型3新型運輸絞車(chē)的動(dòng)力學(xué)仿真3.1運輸絞車(chē)的仿真條件(1)仿真前提條件在仿真過(guò)程中,忽略齒輪和軸的變形,將所有零部件均視為剛體,為了簡(jiǎn)化模型,對運輸絞車(chē)的剛體模型做如下假設:①忽略制造誤差及安裝誤圖1JY-1型新型運輸絞車(chē)傳動(dòng)系統圖1.過(guò)橋輪2小齒輪3.左箱體4制動(dòng)輪5.大錐齒輪6.小錐齒差;②不考慮齒輪嚙合過(guò)程中的摩擦熱及嚙合變輪7中間箱體8內齒圈9太陽(yáng)輪10行星輪1行星架1右形;③忽略軸承及軸之間的徑向竄動(dòng),且它們之間箱體的相對轉動(dòng)為理想約束。2新型運輸絞車(chē)虛擬樣機的建立(2)定義約束及施加載荷圖2為JY-1型新型運輸絞車(chē)的虛擬樣機,由虛擬樣機建好后,其重點(diǎn)內容就是定義各個(gè)構減速箱、卷筒制動(dòng)閘、電機及底座等幾個(gè)主要部件件之間的聯(lián)接關(guān)系和定義載荷。 ADAMS軟件提供組成。要完成虛擬樣機的建立,需要在Po/E軟件中了基本約束、常用運動(dòng)副約束高副約束和驅動(dòng);4先對各個(gè)零部件進(jìn)行三維實(shí)體建模,然后在對其進(jìn)種類(lèi)型的力:①作用行裝配,裝配好后在P0E中定義各個(gè)運動(dòng)件間的柔性連接力;③特中國煤化工載荷:②CNMHG④接觸自由度,然后才能在 ADAMS軟件中對虛擬樣機進(jìn)力。這些力不會(huì )改變水玩的自出度。行運動(dòng)學(xué)和動(dòng)力學(xué)的仿真。(3)碰撞函數的選取Vol 33 No 09新型運輸紋車(chē)的動(dòng)力學(xué)傷真—孫生第33卷第09期在 ADAMS軟件中,碰撞力定義為傳動(dòng)的小齒輪及卷筒的轉速與行星輪和過(guò)橋輪的≥q0轉速方向相反,各個(gè)轉速方向滿(mǎn)足內、外嚙合的關(guān)F=K(qoq)-C(dg/dt)系ep(, qo,1, 9o, 09