单轨吊起吊液压回路启动特性分析

随着采矿设备的发展，开采量的增加对近年来广泛应用的单轨吊的性能提出了更高的要求。以单轨吊起吊液压回路为研究对象，分析其液压制动缸进油路上的阻尼孔对马达启动的影响。建立系统的数学模型，并在Simulink中仿真得出结果，再通过AMESim进行仿真试验。结果表明：在制动液压缸的进油路上设置阻尼孔对马达的启动具有延时作用，可以让马达有足够大的启动转矩时迅速启动，防止因解除制动过快而马达启动转矩不足的情况出现；相对于无阻尼孔的回路，其液压冲击也会减弱，随着阻尼孔孔径的减小，延时效果会更加明显。

Analysis of Starting Characteristics of Hydraulic Circuit for Monorail Lifting

With the development of mining equipment,the increase of mining quantity puts forward higher requirements for the performance of monorail crane,which is widely used in recent years.Taking the hydraulic circuit of monorail lifting as the research object,the influence of the damping hole on the motor starting of the hydraulic brake cylinder was analyzed.The mathematical model of the system was established,and the results were simulated in Simulink,then the simulation test was carried out by AMESim.The results show that setting a damping hole in the inlet road of the brake hydraulic cylinder has a delayed effect on the start of the motor,which can make the motor start quickly when it has a large enough start torque and prevent the motor start torque from being insufficient due to the rapid release of the brake; compared with the loop with no damping hole,the hydraulic impact is weakened,and the delay effect is more obvious with the decrease of the damping hole diameter.