考虑橡胶弹性变形及织构直径对压裂泵柱塞密封摩擦学性能研究
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摘要
压裂泵柱塞因为磨损较多易于失效,因此有必要对其密封副摩擦学性能进行研究。根据有限元原理,建立了橡胶密封圈处轴对称模型,利用有限元分析软件和实验验证研究了橡胶弹性变形以及织构直径对柱塞摩擦学性能的影响。结果表明,织构的存在对橡胶总体变形量的影响不大,但是织构直径或载荷越大,其橡胶压入织构内的深度越大,即压入的体积越大,当橡胶与柱塞相对运动时刮擦掉的橡胶体积越多,增大了磨损量和摩擦系数,不利于摩擦学性能;选择较小直径和介质压力,以得到较好的减磨性能,优选出,圆形织构,在载荷为1 MPa、织构直径为200μm、面积比为20%、深度为80μm、均布。
The plunger wear of the fracturing pump is one of the most vulnerable parts in the fracturing pump, so it is necessary to study the tribological properties of the piston seal of the fracturing pump. Based on the finite element principle, an axisymmetric model of rubber sealing ring is established. The effect of elastic deformation and texture diameter of rubber on the erasing properties of the cylinder is studied by the finite element analysis software. The results show that the existence of texture has little effect on the total deformation of rubber, but the greater the texture diameter or load, the greater the depth of the rubber pressure into the texture, that is, the larger the pressure is, the more the rubber and the rubber and the plunger are removed, the more the rubbing volume is, the greater the wear loss and the friction coefficient, which is not conducive to friction. Study performance; select smaller diameter and medium pressure to get better wear reduction, excellent selection, round texture,the load is 1 MPa, the texture diameter is 200 μm, the area ratio is 20%, the depth is 80 μm.
The plunger wear of the fracturing pump is one of the most vulnerable parts in the fracturing pump, so it is necessary to study the tribological properties of the piston seal of the fracturing pump. Based on the finite element principle, an axisymmetric model of rubber sealing ring is established. The effect of elastic deformation and texture diameter of rubber on the erasing properties of the cylinder is studied by the finite element analysis software. The results show that the existence of texture has little effect on the total deformation of rubber, but the greater the texture diameter or load, the greater the depth of the rubber pressure into the texture, that is, the larger the pressure is, the more the rubber and the rubber and the plunger are removed, the more the rubbing volume is, the greater the wear loss and the friction coefficient, which is not conducive to friction. Study performance; select smaller diameter and medium pressure to get better wear reduction, excellent selection, round texture,the load is 1 MPa, the texture diameter is 200 μm, the area ratio is 20%, the depth is 80 μm.
引文
[1]杨昌海.压裂泵织构化柱塞密封副的摩擦学性能研究[D].成都:西南石油大学,2015.
[2]万轶,李建亮.激光织构化形貌对密封配副摩擦学性能的影响[J].激光技术,2015(4):506-509.
[3]KIM B,CHAE Y H,CHOI H S.Effects of surface texturing on the frictional behavior of cast iron surfaces[J].Tribology International,2014,70:128-135.
[4]李阳.织构化配流副摩擦磨损特性的试验研究[D].南京:南京航空航天大学,2014.
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[7]祁胜.轴向柱塞泵配流副的织构化及其摩擦学性能研究[D].南京:南京航空航天大学,2011.
[8]邵世超.基于仿生微织构的刀具减摩性能研究[D].合肥:合肥工业大学,2013.
[9]刘浩江.高分子材料表面织构润滑性能研究[D].武汉:武汉理工大学,2014.
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[11]KOSZELA W,PAWLUS P,GALDA L.The effect of oil pockets size and distribution on wear in lubricated sliding[J].Wear,2007,263(7).
[12]STEPHENS L S,SIRIPURAM R,HAYDEN M,et al.Deterministic micro asperities on bearings and seals using a modified LIGAprocess[J].Journal of Engineering for Gas Turbines and Power,2004(1):147.
[13]何霞,钟林,王国荣,等.织构化柱塞对压裂泵密封副的摩擦学性能影响[J].摩擦学学报,2014(4):364-370.
[14]李茂元,吴玉国,时礼平,等.阶梯型直线槽对轴承钢端面摩擦学性能的影响[J].机械设计与研究,2015,31(4):99-101.
[15]莫丽,王军.O形圈动密封特性的有限元分析[J].机械科学与技术,2015,34(3):386-392.
[16]韩传军,张瀚,张杰.星形橡胶密封圈的密封特性分析及截面改进[J].机械设计与研究,2015,31(4):90-94.
[17]韩传军,张杰.矩形橡胶密封圈的有限元分析及优化[J].橡胶工业,2013,60(2):98-103.
[2]万轶,李建亮.激光织构化形貌对密封配副摩擦学性能的影响[J].激光技术,2015(4):506-509.
[3]KIM B,CHAE Y H,CHOI H S.Effects of surface texturing on the frictional behavior of cast iron surfaces[J].Tribology International,2014,70:128-135.
[4]李阳.织构化配流副摩擦磨损特性的试验研究[D].南京:南京航空航天大学,2014.
[5]AMANOV A,TSUBOI R,OE H,et al.The influence of bulges produced by laser surfacetexturing on the sliding friction and wear behavior[J].Tribology International,2013,60.
[6]蒋龙.牙轮钻头轴承表面织构加工及其对摩擦学性能影响的研究[D].成都:西南石油大学,2016.
[7]祁胜.轴向柱塞泵配流副的织构化及其摩擦学性能研究[D].南京:南京航空航天大学,2011.
[8]邵世超.基于仿生微织构的刀具减摩性能研究[D].合肥:合肥工业大学,2013.
[9]刘浩江.高分子材料表面织构润滑性能研究[D].武汉:武汉理工大学,2014.
[10]WANG X,ADACHI K,OTSUKA K,et al.Optimization of the surface texture for silicon carbide sliding in water[J].Applied Surface Science,2006(3):1282-1286.
[11]KOSZELA W,PAWLUS P,GALDA L.The effect of oil pockets size and distribution on wear in lubricated sliding[J].Wear,2007,263(7).
[12]STEPHENS L S,SIRIPURAM R,HAYDEN M,et al.Deterministic micro asperities on bearings and seals using a modified LIGAprocess[J].Journal of Engineering for Gas Turbines and Power,2004(1):147.
[13]何霞,钟林,王国荣,等.织构化柱塞对压裂泵密封副的摩擦学性能影响[J].摩擦学学报,2014(4):364-370.
[14]李茂元,吴玉国,时礼平,等.阶梯型直线槽对轴承钢端面摩擦学性能的影响[J].机械设计与研究,2015,31(4):99-101.
[15]莫丽,王军.O形圈动密封特性的有限元分析[J].机械科学与技术,2015,34(3):386-392.
[16]韩传军,张瀚,张杰.星形橡胶密封圈的密封特性分析及截面改进[J].机械设计与研究,2015,31(4):90-94.
[17]韩传军,张杰.矩形橡胶密封圈的有限元分析及优化[J].橡胶工业,2013,60(2):98-103.