冯永可, 张延恒, 孙汉旭, 贾庆轩, 艾晨光. 带有均压槽的气体静压推力轴承设计[J]. 机器人, 2012, 34(2): 204-210. DOI: 10.3724/SP.J.1218.2012.00204
引用本文: 冯永可, 张延恒, 孙汉旭, 贾庆轩, 艾晨光. 带有均压槽的气体静压推力轴承设计[J]. 机器人, 2012, 34(2): 204-210. DOI: 10.3724/SP.J.1218.2012.00204
FENG Yongke, ZHANG Yanheng, SUN Hanxu, JIA Qingxuan, AI Chenguang. Design of an Aerostatic Thrust Bearing with Pressure-equalizing Grooves[J]. ROBOT, 2012, 34(2): 204-210. DOI: 10.3724/SP.J.1218.2012.00204
Citation: FENG Yongke, ZHANG Yanheng, SUN Hanxu, JIA Qingxuan, AI Chenguang. Design of an Aerostatic Thrust Bearing with Pressure-equalizing Grooves[J]. ROBOT, 2012, 34(2): 204-210. DOI: 10.3724/SP.J.1218.2012.00204

带有均压槽的气体静压推力轴承设计

Design of an Aerostatic Thrust Bearing with Pressure-equalizing Grooves

  • 摘要: 针对空间机器人地面微重力模拟实验中存在侧向干扰力/力矩,工作台面不平整等特殊情况,设计了具有周向和径向均压槽的高承载力、高刚度圆盘气体静压推力轴承,并采用变形雷诺方程对轴承的承载特性进行了建模和数值分析.为了验证理论计算结果的正确性, 使用Fluent对轴承的承载力特性进行仿真分析,并且分析了高压气体产生的冲击力对承载性能的影响. 最后,在标准测试平台上对该轴承的承载力特性进行了实验, 并与不带有均压槽的轴承进行对比分析,证明了结构设计和理论分析的正确性.

     

    Abstract: To solve the problem in the space robot's microgravity simulation experiment that lateral interference force/moment exists and the workbench is uneven, a high load capacity, high stiffness round aerostatic thrust bearing with circumferential and radial pressure-equalizing grooves is designed and manufactured, and its load capacity is modeled and numerically analyzed using deformational Reynolds equation. In order to validate the theoretical calculation results, simulation analysis using Fluent is carried out to get the load capacity characteristics, and the influence of the impact created by the high pressure gas on the load capacity is analyzed. Finally, an experiment about the bearing's load capacity characteristics is performed on the standard test platform, and the result is compared with the data of bearing without grooves. It turns out that the structure design and theoretical analysis are correct.

     

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