The utility model relates to a double fan cavity static pressure turntable oil cushion, belonging to the technical field of heavy duty machine tools. The main body of the double fan-shaped cavity hydrostatic rotary table oil pad is a fan-shaped oil pad, the middle fan oil pad as a sector groove, the fan-shaped grooves for the oil chamber, the oil inlet is arranged in the center into the oil chamber; the oil chamber is the fan-shaped convex body a and fan-shaped convex body B. The fan-shaped oil cavity not only increase bearing area, and double fan-shaped convex body structure to reduce the oil cavity volume of hydraulic oil, can make high-speed operation of the heat generated by the turntable can quickly release out; at the same time the oil seal edge effect without losing the action of the oil seal, ensure the oil cavity internal pressure to ensure the bearing performance. Then the work efficiency and machining accuracy of machine tools are improved, which provides support for the study of static pressure theory.
【技术实现步骤摘要】
一种双扇形腔静压回转台油垫
本专利技术涉及一种带圆角的扇形腔静压回转台油垫,属于重载类机床
技术介绍
静压转台因其承载性能好、摩擦力小、刚度高和转速高等有点广泛应用于我国的重载类高档数控机床中。在转台高速重载运转状态下,油腔压力增大,温升引起的油膜厚度变小,承载能力变小。进而造成转台运转效率减小,加工精度下降,严重影响零件加工精度,为重型零部件的制造造成了严重的影响。
技术实现思路
本专利技术重点解决静压转台在高速长时工况下润滑油温升过大问题,提高油垫的承载性能,从而提出一种更为合理的,结构不复杂的双扇形腔静压油垫来攻克这一技术难题。为了解决这一难题本专利技术采用的技术方案如下:一种双扇形腔静压回转台油垫,其特征在于:该双扇形腔静压回转台油垫的主体是扇形油垫1,扇形油垫1的中间为扇形凹槽,该扇形凹槽为油腔1.2,进油口1.1设置在送入油腔1.2的中心;油腔1.2内设有扇形凸体a1.3和扇形凸体b1.4,扇形凸体a(1.3)和扇形凸体b(1.4)并列布置。各个扇形油垫1均匀的布置在底座2上,转台台面安装在各个扇形油垫1的正上方。油腔1.2的边与扇形油垫1对应的 ...
【技术保护点】
一种双扇形腔静压回转台油垫,其特征在于:该双扇形腔静压回转台油垫的主体是扇形油垫(1),扇形油垫(1)的中间为扇形凹槽,该扇形凹槽为油腔(1.2),进油口(1.1)设置在送入油腔(1.2)的中心;油腔(1.2)内设有扇形凸体a(1.3)和扇形凸体b(1.4),扇形凸体a(1.3)和扇形凸体b(1.4)并列布置。
【技术特征摘要】
1.一种双扇形腔静压回转台油垫,其特征在于:该双扇形腔静压回转台油垫的主体是扇形油垫(1),扇形油垫(1)的中间为扇形凹槽,该扇形凹槽为油腔(1.2),进油口(1.1)设置在送入油腔(1.2)的中心;油腔(1.2)内设有扇形凸体a(1.3)和扇形凸体b(1.4),扇形凸体a(1.3)和扇形凸体b(1.4)并...
【专利技术属性】
技术研发人员:赵永胜,赵开瑞,余维哲,鹿慧丰,
申请(专利权)人:北京工业大学,
类型:发明
国别省市:北京,11
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