偏心滾針軸承技術(shù)交流

1、偏心滾針軸承產(chǎn)品分析Eccentric Needle Roller Bearing Product Analysis技術(shù)開發(fā)部CHANGZHOU DONGFENG BEARING CO.,LTDTECHNICAL DEVELOPMENT2009，1，71Eccentric Bearing Technical InfoIntroduction2Eccentric Bearing Technical InfoLoadingTemperatures range: -40 to 125CBearing drives a pump generating 350 bar maximum pressureM

2、ax piston diameter is 9 mmPressure * p * (/2)2 = 501 lbf3偏心滾針軸承設(shè)計主要尺寸The Major Size of Eccentric needle roller bearing design4The Calculation of Eccentric bearing Rated load and rating lift the greatest load of Bearing actually bear Pr=501 Ibf=2.23KN Rated load calculation：Cr=fc*Lwe7/9 *Z3/4 *Dwe29/

3、27 (ISO281:1990) one fc：Factor Lwe：the length of Needle Z：the Amount of Needle Dwe：dia.of Needle F-232214.11 Cr=85.41*9.87/9 *283/4 *1.50529/27 =9.52 KN F-232214.12 Cr=85.927*9.87/9 *273/4 *1.50529/27 =9.32K N F-550207.01 Cr=85.135*7.87/9 *293/4 *1.5129/27 =8.19K N The Calculation of bearing rating

4、lift ：L10=（Cr/Pr）10/3 (ISO281:1990) F-232214.11 L10=（Cr/Pr）10/3 =126.2 Mrpm F-232214.12 L10=（Cr/Pr）10/3 =117.6 Mrpm F-550207.01 L10=（Cr/Pr）10/3 =76.43 Mrpm5The Data analysis of Eccentric bearing Rated load and rating lift F-232214.11 Pr/Cr=23.4%50% Bearing security force，Sustainability in the 501lbf

5、 largest load of the operating environment, 126 200 000rpm F-232214.12 Pr/Cr=23.9%50% Bearing security force，Sustainability in the 501lbf largest load of the operating environment, 117 600 000rpmF-550207.01 Pr/Cr=27.2%50% Bearing security force，Sustainability in the 501lbf largest load of the operat

6、ing environment, 76 430 000rpm6原材料說明Material Explanation沖壓外圈 Stamped external ring 20#冷軋鋼板（AISI 1020） 20# cold rolling steel plate 材料供應(yīng)商：中國 鞍鋼集團(tuán) material supplier: ANGANG STEEL CO.,LTD CHINA滾針 NEEDLE GCr15冷拔鋼絲（AISI 52100） GCr15 cold drawing steel silk 材料供應(yīng)商：中國 寶鋼集團(tuán)上鋼五廠 material supplier: The 5 facto

7、ry of BAO STEEL CO.,LTD CHINA7原材料說明Material Explanation墊圈 WASHER 65Mn冷軋鋼板（AISI 1050） 65Mn cold rolling steel plate 材料供應(yīng)商：中國 新余鋼廠 material supplier: XINYU STEEL COMPANY CHINA偏心輪 ECCENTRIC GEAR 20#冷拔鋼絲 (AISI 1020) 20# cold drawing steel silk 材料供應(yīng)商：中國 首鋼集團(tuán) material supplier: SHOU STEEL CO.,LTD CHINA8零件

8、熱處理要求HEAT TRETMENT REQUIREMENTS OF PARTS沖壓外圈 Stamped external ring 表面滲碳淬火，表面硬度680840HV，硬化深度0.30.35 Surface carburization and quenching, Surface hardness 680840HV,Harden depth 0.30.35滾針 NEEDLE 整體淬火，硬度HRC6165 Whole quenching, hardness HRC61659零件熱處理要求HEAT TRETMENT REQUIREMENTS OF PARTS墊片 WASHER 整體淬火，硬度

9、664840HV Whole quenching, hardness 664840HV偏心輪 ECCENTRIC GEAR 表面滲碳淬火，圓柱表面硬度680840HV，硬化深度0.40.50 Surface carburization and quenching, cylindrical surface hardness 680840HV,harden depth 0.400.5010零件制造工藝流程Process flow chart of part producing沖壓外圈 Stamped external ring 剪料 成型 拉伸 壓底 打標(biāo)記Blanking forming dra

10、wing press bottom marking 切底 cut bottom 車邊 chamfer 竄光表面 局部退火 除油 熱處理 Surface finishing Part annealing degrease Heat treatment11零件制造工藝流程Process flow chart of part producing滾針NEEDLE切斷 除油 軟磨外徑 竄倒角 熱處理 cutting degrease soft grinding o. d chamfer heat treatment 除油 degrease 粗磨外徑 kibble o. d 終磨外徑 精磨外徑 細(xì)磨外徑

11、final grinding o. d soft grinding o. d soft grinding o. d 12零件制造工藝流程Process flow chart of part producing墊片 WASHER切料 成型 去除毛刺 熱處理 cutting forming deburring heat treatment 除油 degrease 表面氧化處理 surface oxidation treatment13零件制造工藝流程Process flow chart of part producing偏心輪 ECCENTRIC GEAR 切料 倒角 軟磨外徑 滲碳淬火 除油 c

12、utting chamfer soft grinding o. d carburization and quenching degrease 磨兩端面 grinding two sides 終磨外徑 鉸孔 倒角 鉆孔 final grinding o. d Reaming chamfer solid boring14產(chǎn)品裝配工藝流程The process flow chart of product assembling零件清洗 裝配滾針 內(nèi)徑檢驗 parts cleaning assembling needle I.D inspection 裝配偏心輪 assembling eccentric

13、 gear 裝配墊片 assembling washer產(chǎn)品交付 包裝 清洗 檢驗 彎邊 delivery packing cleaning inspection beading15產(chǎn)品開發(fā)進(jìn)度表Product development plan16問 題PROBLEM將軸承壓入電機軸的壓力？Whats the pressure of pressing the bearing into electrical machine?偏心輪的內(nèi)徑尺寸？The I,D size of eccentric gear?INA樣品偏心輪的最小厚度1.198，TRW要求的最小厚度為1.5The min thickn

14、ess of INA sample eccentric gear is 1.198,TRW is 1.5 17DFB與INA不同點Differences between DFB and INA INA偏心輪采用GCr15(AISI 52100)材料，表面高頻淬火，圓柱表面硬度662HV，硬化深度0.42，端面硬度236HV0.2INA s eccentric gear AISI 52100 ,surface quenching often ,cylindrical surface hardness is 662HV , harden depth 0.42,head face hardness 236HV0.2DFB偏心輪采用20#鋼（AISI 1020）材料，表面滲碳淬火，圓柱表面硬度680840HV，硬化深度0.400.50，滲碳淬火后采用磨兩端面的方法將端面的硬化層去除。DFB s eccentric gear AIS