钢丝绳计算常用系数

钢丝绳计算中常用的数据另一方面，钢丝绳的最大允许用拉力计算(1)张力计算公式： F sp*A/K式中 F 钢丝绳允许拉伸力(KN )sp钢丝绳断裂张力(KN )K钢丝绳的安全系数A折扣系数(2)钢丝绳安全系数：用途安全系数用途安全系数乘缆车3.5绳子没有弯曲时67手动起重机用4.5绑绳子810机械起重机用56载人升降机用14(3)钢丝绳负载时施加在各钢丝绳上的力不均匀，钢丝芯或钢丝绳弯曲，考虑到压迫引起的应力的影响，其理论断裂张力为，Sp=sp*A式中，sp是断裂张力总和，a是考虑了各种附加要素和力的不均匀的减少系数钢丝绳6*196*376*618*1918*19a.a0.850.820.80.850.82(4)钢丝绳断裂张力1，619钢丝断裂张力直径钢丝总截面积参考重量钢丝绳抗拉强度(Mpa )钢丝绳/mm铁丝/mm14001550170018502000Mm2千克/100米钢丝绳断裂张力的总和/KN6.20.414.3213.5320.0022.1024.3026.428.607.70.522.3721.1431.3034.6038.0041.3044.709.30.632.2230.4545.1049.6054.7059.6064.4011.00.743.8541.4461.3067.9074.5081.1087.7012.50.857.2754.1280.1088.7097.30105.50114.5014.00.972.4968.50101.00112.00123.00134.00144.5015.51.089.4984.57125.00138.50152.00165.50178.5017.01.1108.28102.3151.50167.50184.00200.00216.5018.51.2128.87121.8180.00199.50219.00238.00257.5020.01.3151.24142.9211.50234.00257.00279.50302.0021.51.4175.40165.8245.50271.50298.00324.00350.5023.01.5201.35190.3281.50312.00342.00372.00402.5024.51.6229.09216.5320.50355.00389.00423.50458.0026.01.7258.63244.4362.00400.50439.50478.00517.0028.01.8289.95274.0405.50499.00492.50536.00579.5031.02.0357.96338.3501.00554.50608.50662.00715.5034.02.2433.13409.3606.00671.00736.00801.00-是37.02.4515.46487.1721.50798.50876.00953.50-是40.02.6604.95571.7846.50937.501025.001115.00-是2，637钢丝绳断裂张力直径钢丝总截面积参考重量钢丝绳抗拉强度(Mpa )钢丝绳/mm铁丝/mm14001550170018502000Mm2千克/100米钢丝绳断裂张力的总和/KN8.70.427.8826.2139.0043.2047.3051.5055.7011.00.543.5740.9660.9067.5074.0080.6087.1013.00.662.7458.9887.8097.20106.50116.00125.0015.00.785.3980.27119.50132.00145.00157.50170.5017.50.8111.53104.8156.00172.50189.50206.00223.0019.50.9141.16132.7197.50218.50239.50261.00282.0021.51.0174.27163.8243.50270.00296.00322.00348.5024.01.1210.87198.2295.00326.50358.00390.00421.5026.01.2250.95235.9351.00388.50426.50464.00501.5028.01.3294.52276.8412.00456.50500.50544.50589.0030.01.4341.57321.1478.00529.00580.50631.50683.0032.51.5392.11368.6548.50607.50666.50725.00784.0034.51.6446.13419.4624.50691.50758.00825.00892.0036.51.7503.64473.4705.00780.50856.00931.501005.0039.01.8564.63530.8790.00875.00959.501040.001125.0043.02.0697.08655.3975.501080.001185.001285.001390.0047.02.2843.07792.91180.001305.001430.001560.00-是52.02.41003.80943.61405.001555.001705.001855.00-是56.02.61178.071107.41645.001825.002000.002175.00-是3，661钢丝绳断裂张力直径钢丝总截面积参考重量钢丝绳抗拉强度(Mpa )钢丝绳/mm铁丝/mm14001550170018502000Mm2千克/100米钢丝绳断裂张力的总和/KN11.00.445.9743.2164.3071.2078.1085.0091.9014.00.571.8367.52100.50111.00122.00132.50143.5016.50.6103.4397.22144.50160.00175.50191.00206.5019.50.7140.78132.3197.00218.00239.00260.00281.5022.00.8183.88172.8257.00285.00312.50340.00367.5025.00.9232.72218.8325.00360.00395.50430.50465.0027.51.0287.31270.1402.00445.00488.00531.50574.5030.51.1347.65326.8486.50538.00591.00643.00695.0033.01.2413.73388.9579.00641.00703.00765.00827.0036.01.3485.55456.4679.00752.50825.00898.00971.0038.51.4563.13529.3788.00872.50957.001040.001125.0041.51.5646.45607.7905.001000.001095.001195.001290.0044.01.6735.51691.71025.001140.001250.001360.001470.0047.01.7830.33780.51160.001285.001410.001535.001660.0050.01.8930.88875.01300.001400.001580.001720.001860.0055.52.01149.241080.31605.001780.001950.002125.002295.0061.02.21390.581307.11945.002155.002360.002570.00-是66.52.41654.911555.62315.002565.002810.003060.00-是72.02.61942.221825.72715.003010.003300.003590.00-是二、钢丝绳报废标准(1)钢丝直径减小，直径磨损不超过30%时，允许降低拉伸力使用，超过30%时，进行废弃处理。(2)、钢丝绳长期使用后，由于自然条件和化学腐蚀，钢丝绳整个外表面腐蚀的麻面经外观检查明确时，该钢丝绳不能使用。 另一方面，钢丝绳的纤维芯整体被挤出，即使钢丝绳结构被破坏，也不能再使用。(3)、断线后的报废标准见下表钢丝绳最初的安全系数钢丝绳结