❶ 回轉支承嚙合力如何計算
回轉支承的造型計算 回轉支承結構型式type of slewing ring bearing;01、單排球式sinagle-rowball;02、雙排異徑球式double-rowball;11、單排交叉滾柱式crossed rollers;13、三排滾柱式3-row roller.齒輪傳動形式0--無齒式no teeth1--漸開線圓柱齒輪外齒嚙合小模數outer teeth&smaller mole;2--外齒嚙合大模數oter teeth&bigger mole;3--內齒嚙合小模數inner teeth&smaller mole;4--內齒嚙合大模數inner teeth&bigger mole.安裝配合型式fitting circle;0--標准型無止口no fitting circle;1--標准型有止口with fitting circle;2--特殊型special;安裝連接孔型式 installation hole type;0--內外圈安裝孔均為通孔both rings with installation bolt holes;1--內外圈安裝孔均為螺紋孔both rings with screw holes;2--內圈安裝孔為螺紋孔inner ring with screw holes,外圈安裝孔為通孔outer ring with installation bolt holes;3--外圈安裝孔為螺紋孔outer ring with screw holes,內圈安裝孔為通孔inner ring with installation bolt holes。單排球式回轉支承的造型計算Calculation for single-row ball slewing ring bearing:1、計算回轉支承的額定靜容量capacity of slewing ring bearing Co=f·D·d 式中:Co額定靜容量,N(capacity of bearing) f靜容量系數,110N/mm2(capacity factor) D滾道中心直徑,mm(diameter of track center)d鋼球公稱直徑,mm(diameter of ball)。 2、根據組合後的外載荷,計算當量軸向載荷loading calculation Cp=P+0.00437M/D+3.44Fr 式中:Cp-當量軸向載荷,NM-總傾覆力矩,N·m(total toppling movement) P-總軸向力,N(total axial force) Fr-總徑向車,N(total radial force)。3、計算安全系數(safety factor calculation) fs=Co/Cp fs值可按下表選取(see the following table)。三排柱式回轉支承的造型計算Calculation for 3-row-roller slewing ring bearing:1、計算額定靜容量capacity of slewing ring bearing Co=f·D·d 式中:Co-額定靜容量,N(capacity of bearing) f-靜容量系數,147N/mm2(capacity factor) D-滾道中心直徑,mm(diameter of track center) d-上排滾柱直徑,mm(upper row roller diameter)2、根據組合後的外載荷,計算當量軸向載荷loading calculationCp=p+0.0045M/D式中:Cp-當量軸向載荷, N M-總傾覆力,N·m(total toppling movement)P總軸承向力,N(total axial force)3、計算安全系數(safety factor calculation)fs=Cp/Cpfs值可按下表選取(see the following table);
❷ 回轉支承的軸向力徑向力是怎麼區分的
回轉支承平放在地上,從上到下的力為軸向力。直徑方向的是徑向力