HB8291-2002压缩弹簧.pdf 20页

'中华人民共和国航空行业标准FL5325HB8291一2002压缩弹簧Compressedspring2003一02一24发布2003一02一24实施国防科学技术工业委员会发布 HB8291一2002前言本标准由中国航空工业第一集团公司提出。本标准由中国航空综合技术研究所归口。本标准起草单位:中国航空综合技术研究所。本标准主要起草人:朱绍荷。www.17jzw.cowww.17bzw.cnwww.17jzw.netwww.3x888.co HB8291一2002压缩弹簧1范围本标准规定了压缩弹簧的结构、尺寸和技术要求。本标准适用于一601:-250℃的圆柱螺旋压缩弹簧。2规范性引用文件下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单(不包含勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。GB/T5218一1999合金弹簧钢丝H135013一1974热处理零件检验类别HB5800一1999一般公差HB8292一2002压缩弹簧和拉伸弹簧规范3压缩弹簧的结构、尺寸和要求3.1压缩弹簧的结构见图1，尺寸按表I.其余了注:图中玩,H=从,F=F=,F。由设计确定。图1 HB8291一2002表1单位为毫米一轴向工作力尸2弹簧最高单圈轴向变形童单圈长度单圈重童Nd应用温度D(P:作用下)a1H(25+l0)℃℃了2弹簧应用温度(检验弹簧用)50.401.712.7()0857.6360.672.0巧.80.1049.3971.012.31900.1243.0681.422.822.20.1438.1291.913.325.30.1634.16102.463.928.5()1830.94113.084.731.80.2028.27123.775.535.00.2226.0160134.536_338.20.2424.09145.377.341.50.2622.43156.278.344.80.2820.98167.259.448.10.3019.71178.2910.651.40.3218.5818夕4工11.954.70.3417.581910.5913.358.10.3616.672011.8514.761.50.3815.86www.17jzw.co50.351.712.70.0848.0350.5560.581.915.80.1041.1543.3270.882.219.00.1235.8837.7781.232.622.10.1431.7633.4391.653.025.3()1628.4729.971()102.123.628.50.1825.7827.14II2.664.231.70.2023.5624.79123.264，34.90.2221.6822.82180133.925.638.10.2320.0721.13144.646.54L40.2518.6919.67155427.444.60.2717.4918.41166268.347.8()3016.4217.29www.17bzw.cn177.169.45LI0.3215.4816.30188.1354.4()3414.6515.42I991557.70.3613.8914.632010.24一!)6LI0.3813.2113.9150.301.612.70.0841.1744.2660.51工815.80.1035.2837.937〔)772.11900.1230.7633.0781.082.422.1()1427.2329.2791.442.825.30.1624.4026.24250101.863.328.50.1822.1023.76112.333.831.60.2020.1921.71122.8_54.434.80.2118.5819.9813一5.138〔)0.2317.2118.50www.17jzw.net一14一:.;:5.841.30.2516.0217.23www.3x888.co HB8291一2002表1(续)单位为毫米轴向工作力尸:弹簧最高单圈轴向变形址单圈长度单圈重量N〔l应用温度D(P:作用下)tlg(25+1())飞二℃J2弹簧应用温度(检验弹簧用)3一l1547466445().2714991612165487.447702914081514l76278.3509031132714.27l0250l87129.354203312.5513.501980110.357503511.9112.812089611.46080.3711.33121860.482.015.201482.9970.752.31840167288S1072.62150.19647991.453024.70225824l01.893527.902552.856Ol12.39413110.2845.3612295473430.304455l33565437.50.3341.30144.24624070.3638.48l54.977.043.903936.02l65.777947204233.8560421.91520.13691670652218401660.73一黑80922.521.501953.9991.252824.702248531O1633.22780.254404l2180ll2.073.73100.284030l22.554334.20.3037.13l33084.937.40333442l4366554060363207154306343803930.02164.987147.00.42282160.361.9巧201359.2863.747057211830165206559780812.32150.194628497691.102624.6(〕.22416044731()1433.0278025377540592501l1513.431.002734.543714l22.233934203031823422l32.704.43730.3329.5()3172143215.040503627492956l53765743703925732767l64.366346.904224182600S0.642720.3()3214754166(〕90.902.923403713368101203126604212198 HB8291一2002表1(续)单位为毫米轴向工作力尸2弹簧最高单圈轴向变形量单圈长度单圈重量Nd应用温度D(尸:作用下)t1K(25+10)C℃几弓单簧应用温度(检验弹簧用)111.553.529.70.47112.04121.943.932.90.52103.53132.374.336.10.5796.19142.855.039.30.6289.79153.375.742.50.6784.1760163.936.345.70.7279.21174.546.748.80.7774.79185.197.752.10.8270.83195.898.555.30.8767.26206.639.358.50.9264.0480.562.620.30.32122.95129.4290.782.723.40.37111.40117.27l01.043.026.60.42101.65107.00111.343.329.70.4793.3798.28121.673.732.90.5286.2890.82132.054.136.00.5780.1684.38www.17jzw.co180142.464.639.20.6274.8378.76152.915.142.40.6770.1473.841.6163.405.745.60.7266.0169.48173.926.348.80.7762.3265.60184.496.952.00.8259.0262.13195.097.655.20.8756.0559.00205.738.358.40.9253.3656.1780.492.520.30.32105.38113.3190.682.623.40.3795.49102.67100.912.826.50.4287.1393.69111.173.129.70.4780.0386.05121.463.432.80.5273.9579.52www.17bzw.cn131.793.936.00.5768.7173.88250142.154.239.20.6264.1468.96152.554.742.40.6760.1264.65162.975.245.50.7256.5860.84173.435.848.70.7753.4257.44183.936.351.90.8250.5954.40194.466.955.10.8748.0551.66205.027.758.30.9245.7449.18100.803.125.30.62230.53111.063.428.50.70212.92121.343.731.60.78197.542.060131.674.134.80.86184.08www.17jzw.net142.034.538.00.94172.24152.425.041.11.01161.77www.3x888.co HB8291一2002表1(续)单位为毫米轴向工作力尸2弹簧最高}单圈轴向变形量单圈长度单圈重量N应用温度l只(25+10)`C℃D」‘”’fz弹簧应用温度16〔检验弹簧用)172.855.444.31.09152.46183.315.947.51.17144.14193.816.450.71.25136.6560204.347.153.91.33129.8924.917.857.11.41123.76256.169.263.51.57113.06-108.2911.673.21.80100.06二0.693.025.30.62192.10202.21120.913.228.50.70177.43186.77131.163.531.60.78164.62173.28141.443.834.80.86153.40161.47巧1.754.237.90.94143.53巧1.09162.094.541.11.01134.81141.91(80172.465.044.31.09127.05133.74招2.865.447.41.17120.11126.44l93.295.950.61.25113.88119.872.02()3.756.553.81.33108.25113.9424.257(〕57.01.41103.14108.56255.328.363.41.5694.2299.18一1()7.1610.473.01.8083.3887.77二0.612.925.30.62164.66177.05120.803.128.40.70152.09163.53131.023.431.60.78141.10151.72141.263.634.70.86131.49141.38巧1.533.937.90.93123.03132.29161.834.341.11.01115.55124.25250172.154.644.21.09108.90117.10182.515.047.41.17102.95110.70192.885.450.61.2597.61104.96劝3.295.953.71.3392.7899.7723.726.456.91.4088.4095.06254.667.563.31.5680.7686.84一136.279.372.91.8071.4776.85141.134.033.21.28348.74巧1.394.236.41.40327.62161.684.639.51.52308.66172.004.942.71.65291.622.56OJ82.355.345.91.77276.25192.725.849.01.89262.35203.136.252.22.01249.7223.566.755.42.13238.224.517.861.82.38218.05 HB8291一2002表1(续)单位为毫米轴向工作力Pi弹簧最高单圈轴向变形量单圈长度单圈重量Nd应用温度D(P2作用下)t1B(25+10X℃几弹簧应用温度(检验弹簧用)256.149.771.32.75193.38288.0311.881.03.12173.6660309.4313.487.43.37162.583210.9415.293.93.62152.82130.973.833.21.28290.62305.92141.204.036.31.40273.02287.38151.454.339.51.52257.22270.75161.734.742.71.64243.01255.80172.035.045.81.77230.21242.32182.355.349.01.89218.62230.13180192.705.752.12.01208.10219.06203.086.255.32.13198.52208.97223.907.161.72.38181.71191.27255.318771.22.74161.15169.63286.9410.680.83.11144.71152.332.5308.1512.087.23.36135.48142.61www.17jzw.co329.4513.593.73.61127.35134.05130.853.733.21.28249.10267.85141.053.936.31.40234.01251.63151.274.139.51.52220.47237.07161.514.442.61.64208.30223.98171.784.745.81.76197.32212.17182.065.049.01.89187.39201.50250192.375.352.12.01178.37191.80202.695.755.32.13170.16182.97223.416.661.62.37155.75167.47254.658.071.12.74138.13148.52286.089.680.73.11124.04133.38www.17bzw.cn307.1310.987.13.36116.13124.87328.2812.193.53.60109.16117.37161.454.841.12.28491.68171.725.244.32.46467.01182.025.547.42.63444.47192.335.850.62.81423.84202.686.253.82.98404.93223.437.160.13.34371.533{]60254.738.669.63.86330.33286.2410.379.24.40297.16307.3711.685.64.75278.46328.5912.091.95.10261.95www.17jzw.net3510.6015.3101.75.64240.513812.8217.9111.46.18222.29www.3x888.co 】m8291一2002表1(续)单位为毫米轴向工作力尸:弹簧最高单圈轴向变形量单圈长度单圈重量N应用温度D(Pz作用下)C(25+10)*C℃八弹簧应用温度(检验弹簧用)161.264.641.12.28409.73431.30”1.494.944.32.46389.18409.6618191.745.247.42.63370.39389.89202.025.550.62.81353.20371.792.315.853.72.98337.44355.2021802.966.560.03.33309.61325.90254.097.869.63.86275.27289.7628305.409.379.14.39247.64260.676.3710.585.54.74232.05244.2732357.4211.791.95.10218.29229.789.1613.7101.55.63200.42210.97些-11.0515.9111.16.16185.24194.993.016价1.104.441.12.28351.20377.64工t304.644.22.45333.58358.69181.534.947.42.63317.48341.3819201.775.250.52.80302.74325.5322.025.553.72.98289.2331.002502.586.160.03.33265.38285.35253.587369.53.86235.95253.71284.728.679.04.38212.26228.2430325.589.685.44.74198.90213.876.5010.691.75.09187.11201.19358.0212.4101.35.62171.79184.72兰9.7014.3110.96.15158.78170.7318或即U均1.535.445.93.4683Z59C201.785.749.03.703363122.066.052.23.9410只80252.676.658.54.4276283.747.968.05.14517.93304.989.477.55.86466.91605.9210.483.96.34437.99犯356.9311.690.36.82412.378.6013.599.97.54379.023.5384010.4515.6109.58.27350.594211.7917.1115.98.76333.8713.2018.8122.49.24318.66竺15.4721.4132.19.98298.251819工t325.245.83.46574.86605.11201.545.449.03.70549.44578.36I801.785.752.13.04525.92553.602252.316.358.54.42483.97509.443.237.467.95.13461.61454.33 HB8291一2002表1(续)单位为毫米轴向工作力Pz弹簧最高单圈轴向变形量单圈长度单圈重量N应用温度D(Pi作用下)l只(25+10)℃℃f2弹簧应用温度(检验弹簧用)4.318.677.45.85389.09409.575.119.583.86.33365.00384.215.9910.590.16.81343.65361.731807.4312.299.77.53315.85332.489.0314.0109.38.25292.16307.5410.1815.4115.78.74278.23292.8711.4116.8122.19.22265.55279.52-13.3719.1131.89.95248.54261.621.155.045.83.46492.73529.821.355.249.03.70470.95506.403.51.565.552.13.94450.79484.722.026.058.44.41414.83446.052.836.967.95.13369.95397.803.778.077.45.84333.51358.612504.488.883.76.32312.85336.405.249790.16.80294.55316.72气，073www.17jzw.co6.5111.199.67.52︸291.112气0427.9112.7109.18.24︸269.272内R48J8.9213.9115.58.72256.43门气7619.99‘15.1121.99.21244.74伪1凡04﹂11.7117.1131.59.93︸1229.071.616.050.64.99922.102.116.656.95.62851.683.007.666.46.55762.374.058.875.97.49688.974.849.782.38.11647.095.7010.788.68.74609.857.1112.398.29.68561.1960www.17bzw.cn8.6914.1107.710.63519.589.8315.4114.111.26495.0511.0416.8120.611.89472.704.012.9819.0130.212.84442.6815.0921.4139.913.80416.2116.5823.1146.314.44400.2318.1425.0152.915.08385.431.395.750.64.99768.42808.861.836.356.95.61709.73747.092.607.166.46.55635.31668.741803.508.275.87.48574.14604.364.188.982.28.11539.24567.62www.17jzw.net4.929.888.58.73508.20534.956.1511.2980967467.66492.27www.3x888.co HB8291一2002表1(续】单位为毫米轴向工作力P,弹簧最高单圈轴向变形量单圈长度单圈重量Nd应用温度D(Pz作用下)t19(25+10)>r℃几弹簧应用温度(检验弹簧用)387.5112.8107.610.61432.98455.77408.4913.9113.911.24412.54434.25429.5415.1120.311.87393.92414.651804511.2217.0129.912.82368.90388.314813.0419.1139.513.77346.84365.095014.3220.6146.014.40333.53351.085215.6722.2152.415.04321.19338.10201.225.650.64.99658.64708.22221.606.056.95.61608.34654.13252.276.866.36.54544.55585.544.0283.077.775.87.48492.12529.16303.668.382.18.10462.21497.00324.319.188.48.72435.60468.39355.3810.397.99.66400.85431.02250386.5711.7107.510.60371.13399.06407.4412.7113.811.23353.61380.22428.3513.7120.211.85337.64363.06459.8215.4129.712.80316.20340.004811.4117.3139.313.74297.29319.675012.5418.5145.714.37285.88307.405213.7219.9152.115.00275.31296.03252.457.464.88.091068.73283.348.574.39.28968.67304.019.280.610.07911.093247510.187.010.86859.64355.9711.596.512.05792.12387.3313.0106.013.24734.1560408.3214.2112.414.04699.89429.3715.4118.814.83668.624511.0617.3128.416.03626.554812.8919.4138.017.23589.384.55014.1920.9144.518.04566.945215.5522.5150.918.84546.125517.7125.0160.620.05517.58252.117.164.88.09890.61937.48282.898.074.39.27807.22849.71303.478.680.610.06759.24799.20324.109.486.910.85716.36754.07180355.1610.696.412.04660.10694.84386.3411.9105.913.22611.79643.99407.1912.9112.314.02583.24613.94428.0914.0118.614.81557.18586.51 HB8291一2002表1(续)单位为毫米轴向工作力尸2弹簧最高单圈轴向变形量单圈长度单圈重量Nd应用温度D(尸2作用下)tlK(25+10)1r℃f弹簧应用温度(检验弹簧用)459.5515.6128.216.00522.12549.604811.1417.4137.817.20491.15517.001805012.2618.7144.218.00472.45497.315213.4320.1巧0.618.80455.10479.055515.3022.2160.220.00431.32454.02251.856.864.88.09763.38820.83282.537.574.29.26691.90743.98303.048.180.510.05650.78699.76323.598.886.810.84614.03660.244.5354.529.893.612.03565.80608.39385.5511.0105.813.214524.39563.86250406.2911.9112.214.00499.92537.55427.0912.8118.514.79477.59513.53458.3614.3128.015.99447.53481.22489.7515.8137.617.18420.99452.685010.7316.9143.917.97404.95435.43www.17jzw.co5211.7618.2150.318.77390.08419.455513.4020.1159.919.97369.70397.53252.017.563.39.751440.78282.788.372.711.211310.47303.369.079.112.181234.64324.009.785.413.161166.47355.0710.994.914.621076.51386.2612.3104.416.09998.90407.1213.3110.817.07952.88428.0414.4117.118.05910.81604595316.1126.719.53854.084811.1417.9136.321.00803.88www.17bzw.cn5012.2919.2142.721.99773.515213.4920.6149.122.98745.335,05515.4022.7158.724.46706.655817.4325.2168.425.96671.756018.8626.8174.926.95650.326220.3428.5181.327.95630.206522.6731.1191.029.45602.24251.747.263.29.751200.651263.84282.407.972.711.201092.061149.54302.918.579.012.181028.871083.02180323.469.185.313.15972.061023.22354.3810.294.814.61897.09944.31www.17jzw.net385.4111.3104.316.07832.41876.22406.1512.2110.617.05794.07835.8610www.3x888.co I-IB8291一2002表1(续)单位为毫米轴向工作力尸2{弹簧最高一单圈轴向变形ItNd}应用温度(25+10)"c{℃“一‘尸’fW2F)单.ak度}单瞥9M弹簧应用温度(检验弹簧用)426.9513.117.018.03759.01798.96458.2314.6126.519.50711.74749.19489.6316.2136.120.97669.90705.165010.6217.3142.421.95644.59678.525218011.6518.6148.822.94621.11653.80513.3020.4158.424.41588.88619.875815.0622.5168.025.90559.79589.266016.2923.9174.426.89541.93570.466217.5825.4180.927.88525.17552.8165-一19.5927.7190.529.37501.87528.28251.526.963.29.741029.131106.59282.107.672.711.20936.051006.51302.548.179.012.17881.89948.27325.03.038.685.313.14833.19895.91353.839.594.714.60768.94826.81384.7310.6104.216.06713.50767.20405.3911.3110.517.04680.63731.86妮6.0812.1116.918.01650.58699.55250457.2113.4126.419.48610.06655.98488.4314.8135.920.95574.20617.42509.2915.8142.321.93552.51594.105210.2016.9148.622.91532.38572.45511.6518.5158.224.38504.75542.745813.1920.3167.725.85479.82515.946014.2721.6174.126.84464.51499.486215.3922.8180.527.82450.14484.03“-17.1524.9190.129.31430.17462.55322.919.582.218.25196673353.7410.491.720.35182196384.6711.5101.222.46169537405.3512.3107.523.80161971426.0813.1113.925.27155018457.2614.5123.427.38145595488.5615.9132.929.50137215506.0609.4617.0139.330.911321305210.4218.1145.632.33127399511.9619.8155.234.451208925813.5921.7164.836.581150076014.7423.1171.238.001113.866215.9424.4177.639.421079.836517.8226.6187.341.561032.47能19.81289196.94171989.0411 HB8291一2002表1《续)单位为毫米轴向工作力尸2之苗图鹅丢哥1些二单圈轴向变形量J州尸J气声‘‘.。习单圈长度单圈重量Nd应用温度n(1":作用下)r1H(25+10)C℃了2弹簧应用温度(检验弹簧用)322.519.082.218.241638.941725.20353.239.891.620.34巧18.301598.21384.0310.7101.122.441412.811487.17404.6211.4107.423.841349.761420.80425.2512.2113.825.251291.811359.80456.2713.4123.327.361213.291277.15487.3814.6132.829.461143.461203.64180508.1715.5139.130.871101.081159.04529.0116.5145.532281061.661117.545510.3318.0155.034.401007.441060.465811.7419.7164.536.52958.391008.836012.7420.8170.937.94928.22977.076213.7722.0177.339.35899.86947.226515.4023.8186.941.48860.39905.676817.1225.8196.543.61824.20867.586.0322.208.782.118.231404.811510.54www.17jzw.co352.839.491.620.331301.401399.35383.5310.2101.022.431210.981302.13404.0510.8107-423.831156弘1244.02424.6011.4113.725.231107.271190.61455.4912.5123.227.341039.96118.24486.4613.6132.629.44980.111053.88250507.1614.4139.030.85943.791014.82527.8915.2145.332.25909.99978.49559.0416.6154.834.37863.52928.515810.2818.0164.436.48821.48883.316011.1519.0170737.89795.61855.506212.0620.0177.139.30771.31829.36www.17bzw.cn6513.4821.6186.641.42737.48792.996814.9923.4196.243.54706.46759.633.2材料、表面处理和工作圈数要求如下:材料:65Si2MnWA按G13(T5218-19990表面处理:镀福外m，磷酸盐氧化，憎水处理;允许采用镀锅9tim，铬酸钝化。每端非工作(压并)圈数为1圈。不采用工作圈数少于3圈的弹簧。www.17jzw.net3.3弹簧热处理按表2aI2www.3x888.co HS8291一2002表2淬火回火机械性能温度Mgt悴火介质冷却介质HR(二℃afhfal赢850士10油430-5201空气45.5-49.51519-1764淬火在用木碳脱氧的盐槽内或在中性(吸热的)气体介质中加劣}NoHRC45.5-49.5的弹簧按HB5013974的N类检验，a6=1519MPa-1764MPa的弹簧按HB5013一1974的II类检验。3.4弹簧预加强处理按表3.表3稳定要求弹簧应用温度温度加热时弹簧高度℃阶段℃afhlr97nmi第1次预加强处理110士102Hxmj%=执一1.巧凡镇60第2次预加强处理110土101一1.5月，加盗=Ho一1.巧F_第1次预加强处理200土102Hmcus=场一1.15几>60一180第2次预加强处理200士101一1.5Hmnu,m=Ho一1.15F2第1次预加强处理260士103Hmp.%=瑞一1.巧几>180-250第2次预加强处理260士101.5Hmmo=Ho一1.15F,对于精密弹簧，为避免发生反弹现象，在存放时，允许将弹簧高度预压至H:一0.5凡。允许进行弹簧自发破坏检验，检验方法是将弹簧压缩至从，在室温下使其保持压缩状态72ho在第2次预加强处理之前，进行表面处理与稳定性回火(脱氧)。稳定性回火在(190土10)℃保持2h。加热时弹簧高度应为Ho。3.5符号与计算公式按表40表4参数和符号计算公式单位预压缩轴向力尸P,>O.1P,N_可d3工作轴向力(最大应用载荷)Pz厂，=万气分.下;-;了r争N己1少z八弓单簧外径DD=D2+dmm弹簧中径DiD，二D一dnlnl8P,川F,在载荷尸:作用下单圈轴向变形量f,mmJ,=下丁二不，=二丁〔‘t“、T在载荷尸:作用下单圈轴向变形量几、一7SFUK,T一nFmm HB8291一2002表4(续】参数和符号计算公式单位在载荷p.作用下弹簧轴向变形量凡F:=J”nln飞在载荷尸2作用下弹簧轴向变形量凡凡=九”nlnl弹簧单圈刚度22=尸2/fzN/rnmh=几一只工作行程丙从零点开始工作时丙=FZnlll工作扭转应力见表5M氏HO=tn+(，一，了一0.5)d弹簧自由高度瑞rll】11当。2=2时，场=扭十15d在载荷尸:作用下弹簧高度HH=瑞一凡nl们在载荷尸:作用下弹簧高度从H:=H。一几nU】1弹簧压并高度凡几=(?2一0.5)dnlnl弹簧节距t:_丛~二1坐卫二业】1111有效圈数www.17jzw.co总圈数尹21=)了+刀2支承圈数，产2=220℃温度下剪切模量“(;二74480MPa与弹簧圈截面形状和曲度有关的系数K二一料+毕考虑加热时剪切模量变化和线性膨胀的系数KT见表5弹簧指数CC=DZ/d钢丝直径dn飞nl单圈长度1L，=丫(初2)2+产nlll弹簧展开长度1-L=均构Inlnlwww.17bzw.cn单圈重量。:一。0o785丫:1g弹簧重量7，=，，(，一05)g36弹簧工作应力二:和弹簧应用温度有关的温度系数K:见表5。表5弹簧应用温度2060100150180250℃工作扭转应力rZ」834825716696589MPawww.17jzw.net温度系数KT一}1一0955一一0.96一"一。ꌹ95}一在动载荷与周期性载荷下工作的弹簧，其:、尸:丫j。的数值应降低。降低数值由设计确定。3了www.3x888.co HB8291一2002当弹簧Ho/Do>3时，应检查稳定性。检查由设计员在选择弹簧时进行。:.:与弹簧圈截面形状和曲度有关的系数K按图2曲线选取。1.6旧丙1.4匹口陌人冈冈{!.一四、、、口曰曰口}一斗一巨一。nTo图23.10在预加强处理时，用于计算尺寸的符号和计算公式应符合图3和表6的规定。一P1H}f加强图3 HB8291一2002表6计算数值名称公式单位预加强处理时弹簧轴向变形量FH凡一_1I.-15FE,_rnmFH预加强处理前弹簧高度H=H==Hmm.十FHnl们n卷绕时弹簧节距LH，、，一HH711.5dnlll预加强处理时弹簧高度HRSYImHmme=Ha一工巧Fi】1刀11预加强处理时弹簧永久变形量。预加强处理前弹簧计算中径(DZ)H(D2)H=Jo;一0.1(c2一。:)n】】13.11氏‘100%的数值见表70表7点“10096d预加强处理温度www.17jzw.conUlI℃110士10200士10260土101.017.5-23.518-2418.5-24.51.217-231.616.5-22.517.5-23.518-242.0巧-2117-2317.5-23.52.514-2016.5-22.517-233.012.5-18.516-2216.5-22.53.511.5一17.515-21巧.5-21.5www.17bzw.cn4.010-1614.5-20.515-214.59-1514-205.07.5-13.513.5-19.514-206.05.5一11.512一1812.5一18.53.12其他技术要求按HB8292一2002www.17jzw.net16www.3x888.co HB8291一2002弹簧标记弹簧标记示例见表Sa表8标记示例:d=2mm,D二15mm,凡二50mm,镀福铬酸钝化精度旋工作温度等级向℃60180250右HB8291一2x15x50一1CdHB8291一2x15x50一1Cdl80HB8291一2x15x50一1Cd2501HB8291一2x15x50一1Cd180ZHB8291一2x15x50一LCd250Z左HB8291一2x15x50一ICE一LH一LH一LH右HB8291一2x15x50一2CdHB8291一2x15x50一2Cd180HB829!一2x15x50一2Cd2502HB8291一2x15x50一2Cd180ZHB8291一2x15x50一2Cd250Z左HB8291一2x15x50一2CdZ一LH一LH一LH右HB8291一2x15x50一3CdHB8291一2x15x50一3Cdl80HB8291一2x15x50一3Cd2503HB8291一2x15x50一3Cdl80ZHB8291一2x15x50一3Cd250Z左HB8291一2x15x50一3CdZ一LH一LH一LH5弹簧的选择5.1弹簧选择示例如下:示例1:工作温度20℃的弹簧选择已知弹簧工作条件:P2=137.34N,D=18mm,F2=30mmo查表1确定:P2=136.65N,f=3.81mm,t=6.4mm,d=2mm,L,=50.7,m,=1.25go有效圈数n=F2/几=30/3.81=7.8480总圈数n一n+2二8+2二l00弹簧自由高度Ho=to+1.5d=6.4x8+1.5x2=54.2mmo弹簧重量m=m,(n，一0.5)=1.25(10一0.5)二11.87g.弹簧展开长度L=L,n,=50.7x10=507mmo预加强处理前弹簧轴向变形量1.15凡1.15x30FH=——=42.lmm1一0.18‘一FE=当“一2mm，预加强处理温度“10士’“)℃时，由表7中选取氏“100%的数值为‘5%-21%·取平均值则为”%，即氏=0.180预加强处理前弹簧高度H==Hmum+F,=(Ho一1.15F2)+F、二(54.2一1.15x30)+42.1=61.8二。预加强处理前弹簧节距 HB8291一200261.8一1.5x2t。一H=-n1.5d=7.35mo=一一8标记为:HB8291一2x18x55示例2:工作温度250℃的弹簧选择已知弹簧工作条件:尸:二98.1N,D=18mm,F,=30mmo查表1确定:P:二97.61N,f=2.88m,t=5.4m,d=2m,L,=50.6,m,=1.25g.有效圈数n=F2/九=30/2.88=10.41100总圈数n,=n+2=10+2=120弹簧自由高度Ho=to+1.5d=5.4x10+1.5x2=57mo弹簧重量m=m,(n,一0.5)=1.25(12一0.5)=14.37g.弹簧展开长度L二1,n,=50.6x12=607.2mmo预加强处理前弹簧轴向变形量1.15F21.15x30F”==43.4m1一0.205‘一FE=当“一2mm，预加强处理温度‘260士10)℃时，由表7中选取氏x100%的数值为17.506-23.5060www.17jzw.co取平均值则为20.5%,即氏一0.2050预加强处理前弹簧高度H,，二Hmbol+F==(H。一1.15F2)+FT,=(57一1.15x30)+43.4=65.9mm,预加强处理前弹簧节距一1.5d65.9一1.5x2t~;一丛=—10=6.29mm标记为:HB8291一2x18x57www.17bzw.cnwww.17jzw.net标准资料收藏家www.17bzw.cn易启标准网免费提供十万标准书籍资料下载会打字、5分钟快速自助建网站www.17jzw.com易启建站网免费提供建站平台，商业网站1年仅60www.3x888.co'