月面钻取采样回转齿轮副啮合生热试验研究

发布时间：2018-10-25 17:27

【摘要】：针对月面钻取采样装置的回转齿轮副啮合热进行理论分析,依据辐射换热定律建立了理论温升模型;模拟实际月面真空、带载工况并开展试验研究。分析了啮合热在月面高真空环境的制约条件下,向机体外传播的方式、传热途径以及散发不畅时的积聚作用对附近运动副工作特性的影响。研究结果表明:回转齿轮副作为钻具驱动单元动力传递的中间环节,在20 Nm负载转矩工况下持续运行40分钟,理论预测最大温升28.66℃,与试验测量的最大温升结果 28℃相吻合,充分验证了钻进驱动单元热设计的正确性,准确地识别出回转齿轮副啮合热积聚的潜在风险。
[Abstract]:Based on the theoretical analysis of meshing heat of rotary gear pair with lunar drilling sampling device, the theoretical temperature rise model is established according to the law of radiation heat transfer, and the actual lunar surface vacuum is simulated and the experimental study is carried out. The influence of the mode of transmission of meshing heat in the high vacuum environment on the lunar surface, the way of heat transfer and the accumulation of heat transfer on the working characteristics of the motion pair in the vicinity are analyzed. The results show that the rotary gear pair, as the intermediate link of the power transfer of the driving unit of the drilling tool, runs continuously for 40 minutes under the load torque condition of 20 Nm, and the maximum temperature rise is predicted to be 28.66 鈩，

本文编号：2294325