高速同步带间歇传送装置的动态性能研究

Dynamic Performance of the High-speed Synchronous Belt Intermittent Transmission Device

目的为了解决间歇运动引起的振动和噪音问题,提高同步带传送的精度和可靠性,研究间歇运动对高速同步带传动装置的影响。方法通过研究一对带齿与轮齿的啮合接触问题,建立周期性载荷激励下带上相邻夹具间的振动平衡方程,在理论模型的指导下,利用Recurdyn软件建立高速同步带间歇传送系统动态仿真模型,分析系统位置精度和动态性能的影响因素。结果得到的数据表明,带元的粘弹性会造成同步带的横向及纵向振动,且带中段的定位精度较低。结论根据得到的间歇运动对高速同步带间歇传送装置动态性能的影响可以得出,采用带中段增设涨紧轮或者采用中间加钢丝的无拼接同步可提高同步带传送的可靠性。

The work aims to solve the problem of vibration and noise caused by intermittent motion, improve the accuracy and reliability of synchronous belt transmission and study the effect of intermittent motion on the high-speed synchronous belt transmission device. By studying a pair of meshing contact problems between belt teeth and gear teeth, the vibration balance equation between adjacent fixtures on the lower belt of periodic load excitation was established. Then, under the guidance of theoretical model, Recurdyn software was used to establish the dynamic simulation model of high-speed synchronous belt intermittent transfer system. The factors affecting the system position accuracy and dynamic performance were analyzed. The data obtained indicated that the lateral and longitudinal vibrations of the synchronous belt were caused by the viscoelasticity of the tape elements, and the positioning accuracy in the middle of the tape was low. According to the effect of intermittent motion on the dynamic performance of high-speed synchronous belt intermittent transmission device, it is possible to increase the reliability of the synchronous belt transmission by an additional tensioner with a mid-section or a stitch-free synchronous belt with steel wire in the middle.