卷筒智能計(jì)算

起重小車智能計(jì)算制作:包義良,,,,,,,,

"已知數(shù)據(jù):起重量Q=10t,起升高度H=15m,起升速度V=7.5m/min,小車運(yùn)行速度V0=45m/min,",,,,,,,,

"工作級(jí)別M5級(jí),機(jī)構(gòu)接點(diǎn)持續(xù)率JC=25%,小車質(zhì)量估計(jì)Gx0=4t",,,,,,,,

,注意:綠色為需要輸入的數(shù)據(jù),,,金色為輸出數(shù)據(jù),,,,

Q=,10000,牛起重量,等于10噸,,v=,7.5,m/min起升速度,

H=,15,米起升高度,,,V0=,45,m/min小車運(yùn)行速度,

,,,,,,,,,

"一.確定起升機(jī)構(gòu)傳動(dòng)方案,選擇滑輪組和吊鉤組",,,,,,,,

1.起升機(jī)構(gòu)計(jì)算,,,,,,,,

"確定起升機(jī)構(gòu)的方案,本例題按10t,查表取滑輪組倍率如下",,,,,,,,

ih=,3,查表取滑輪組倍率,,,,,,

,,Z=2ih=,6,承載繩分支數(shù),,,,

"查附表8得吊鉤組重量G0和兩動(dòng)滑輪間距l(xiāng)0也就是A,如下",,,,,,,,

G0=,219,kg吊鉤組重量,,,l0=A=,185,mm兩動(dòng)滑輪間距,

,,,,,,,,,

2.選擇鋼絲繩,,,,,,,,

"若滑輪組采用滾動(dòng)軸承,已知滑輪倍率ih,查表得滑輪組效率:n如下",,,,,,,,

鋼絲繩所受最大拉力:,,,,,n=,0.985,滑輪組效率,

Smax=(Q+G0)/(2ihn)=,,,1729.103215,kg=,17.29,KN,,

"查表中級(jí)工作類型(M5)時(shí),安全系數(shù)n值等于",,,,,n=,5.5,,

鋼絲繩計(jì)算破斷拉力:,,,,,,,,

Sb=,n*Smax=,95.10067682,KN,,,,,

查表選擇鋼絲繩型號(hào)為:,,,14NAT6X19W+FC1770ZS108GB8918-88,,,,,

鋼絲繩公稱抗拉強(qiáng)度,,,1670,MPa,,直徑d=,14,mm

,,,,,,,,,

3.確定滑輪主要尺寸,,,,,,,,

滑輪的許用最小直徑:,,,,,,,,

D>=d(e-1)=,,336,mm,,,,,

式中系數(shù)e查表得,,,e=,25,,,,

查表得選用滑輪直徑D=,,,355,mm,根據(jù)D值查的,,,

平衡滑輪直徑Dp=,,0.6D=,213,mm,,,,

查表得選用平衡滑輪直徑D=,,,225,mm,,,,

查表得滑輪軸直徑D5=,,,90,mm,,,,

"4.確定卷筒尺寸,并驗(yàn)算強(qiáng)度.",,,,,,,,

卷筒直徑:,,D>=d(e-1)=,336,mm,,,,

查表確定卷筒直徑D=,,400,mm,,槽底半徑,r=,8,mm

查表得槽距t=,,16,mm,,,,,

,,,,,,,,,

卷筒尺寸:,,,,,,,,

L=,2*((H*ih)/(3.14*D0)+Z0+4)*t+L1=,,,1484.726392,mm,,,

,L1=L0=A吊鉤組動(dòng)滑輪間距,,,,,,,

卷筒計(jì)算直徑,,D0=,D+d=,414,mm,,,

附加安全系數(shù):,,Z0=,2,,,,,

卷筒壁厚:,,￡