【摘要】：針對(duì)采煤機(jī)平滑靴、導(dǎo)向滑靴、刮板輸送機(jī)銷排之間壽命不匹配、可靠性低的問(wèn)題,采用虛擬樣機(jī)技術(shù)建立了包含刮板輸送機(jī)中部槽線路形態(tài)特征、搖臂柔性變形特征、平滑靴與中部槽接觸摩擦特征、導(dǎo)向滑靴與銷排含間隙接觸碰撞特征、驅(qū)動(dòng)輪與銷排的接觸嚙合特征的采煤機(jī)剛?cè)狁詈蟿?dòng)力學(xué)模型,再以滾筒實(shí)驗(yàn)載荷為激勵(lì)對(duì)模型進(jìn)行仿真研究,結(jié)果表明:在實(shí)驗(yàn)載荷激勵(lì)下,致使左平滑靴在y向的載荷大于右平滑靴,兩者載荷仿真均值約為198.2,78.2 k N,在z向載荷相接近,仿真均值約為-20.0,-16.5 k N;左、右導(dǎo)向滑靴在y向的載荷仿真均值約為42.0,45.2 k N,在z向載荷均值約為289.9,270.1 k N;通過(guò)實(shí)驗(yàn)驗(yàn)證了仿真結(jié)果,并利用仿真模型分析了不同俯仰角、側(cè)傾角情況下滑靴受力變化規(guī)律,為研究不同工況下采煤機(jī)整機(jī)力學(xué)特性提供依據(jù)。
[Abstract]:Aiming at the problems of poor reliability and mismatch between pin and row of shearer smooth boots, guide slippers and scraper conveyors, virtual prototyping technology is used to establish the characteristics of line shape in the middle slot of scraper conveyor and flexible deformation characteristics of rocker arm. The dynamic model of rigid and flexible coupling of shearer with smooth shoe and middle groove contact friction characteristic, guide slide shoe and pin row with clearance contact collision characteristic, driving wheel and pin row contact meshing characteristic, The simulation results show that the load of the left smooth boot in y direction is larger than that of the right smooth boot under the excitation of the experimental load. The simulation mean value of the two loads is about 198.2n and 78.2kN, which is similar to the load in the z direction, and the simulation results show that the load of the left smooth boot is larger in the y direction than that in the right one. The average value of simulation is about -20.0 ~ 16.5 KN, the average value of load simulation of left and right guide skates is about 42.0 ~ 45.2 KN in y direction and 289.9270.1 KN in z direction, the simulation results are verified by experiments, and different pitch angles are analyzed by simulation model. The mechanical characteristics of shearer under different working conditions can be studied according to the changing law of sliding boots under the condition of side inclination.
【作者單位】： 遼寧工程技術(shù)大學(xué)機(jī)械工程學(xué)院;煤炭工業(yè)協(xié)會(huì)高端綜采成套裝備動(dòng)力學(xué)測(cè)試與大數(shù)據(jù)分析中心;中國(guó)煤礦裝備有限責(zé)任公司;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51774162,51404132)
【分類號(hào)】：TD421.6

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