《紧固件 钢丝螺套 第4部分：锥端锁紧型》

1注：本文件使用的“螺纹公称直径”和“钢丝螺套规格”是指钢丝螺套旋入GB/T24425.5规定的内螺纹后，所形下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中,注日期的引用文24型式尺寸4.1钢丝螺套自由状态下的尺寸按图1和表1的规定。图1锥端锁紧型钢丝螺套钢丝螺套规格自由状态外径DZ小端尺寸DXminmaxminmaxM33.804.353.113.22M45.055.604.154.29M56.256.805.175.33M67.587.956.226.413钢丝螺套规格自由状态外径DZ小端尺寸DXminmaxminmaxM78.589.207.227.41M89.8510.358.278.48M1012.1012.8010.3210.56M1214.5015.0012.3812.654.2钢丝螺套自由状态工作圈数为自由状态总圈数减去2圈非工作圈。4.3钢丝螺套安装后长度按自由状态整圈数进行计算和选择（见表2）。以螺纹公称直径倍数表示的钢丝螺套公称长度Ln（自由状态）与自由状态工作圈数和安装后长度的对照见表A.1。4.4钢丝螺套旋入安装孔螺纹后的安装后长度L（见表2和表A.1）是从锥端平面减去两圈后至尾端平面的垂直距离。4.5M5及其以下的钢丝螺套，允许锥体端保留长度（m）小于（2/3）Dz的直柄，如图2。4图2锥体段保留长度5表2自由状态工作圈数N和安装后长度L钢丝螺套规格自由状态工作圈数N±1/4圈456789202122安装后长度L(参考）/mmM32.7013.2773.8524.4285.0035.5786.1546.7297.3047.8808.4559.0309.60610.18110.75711.33211.90712.48313.058M43.6944.4775.2616.0446.8287.6118.3959.1789.96210.74511.52812.31213.09513.87914.66215.44616.22917.01317.796M54.1995.0895.9796.8697.7598.6499.53910.42911.31812.20813.09813.98814.87815.76816.65817.54818.43719.32720.217M65.1356.2187.3028.3869.46910.55311.63712.72013.80414.88815.97117.05518.13919.22220.30621.38922.47323.55724.640M75.2176.3217.4258.5309.63410.73811.84212.94714.05115.15516.25917.36418.46819.57220.67621.78122.88523.98925.093M86.3867.7329.07910.42511.77213.11814.46515.81117.15818.50419.85121.19722.54423.89025.23726.58327.93029.27630.622M107.5089.08510.66212.23913.81615.39216.96918.54620.12321.70023.27724.85426.43128.00829.58531.16232.73934.31635.893M128.78110.62612.47114.31616.16118.00719.85221.69723.54225.38727.23229.07830.92332.76834.61336.45838.30340.14941.994