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我厂于1971年8月至1972年2月,对4L-20/8空压机进行了强化试验,共运转了800小时,机器运转正常,经拆检各运动部件磨损正常,在排气压力8公斤/厘米~2的情况下,排气量为32米~3/分,各级排气压力和温度也正常。在试验过程也产生过一些问题,经采取措施后,先后得到解决。试验是由皮带传动的,现将采取的措施简介如下: 因转数由400转/分增至600转/分,惯性力也相应增大,为了減小机器的振动,将一级活塞改成铝活塞,使其重量接近原机二级活塞重量,同时对原机铸铁配重改成由钢板焊灌铅配重,其配重螺钉的材质由35号钢改成40Cr(尺寸未变)。采取措施后,曾发生拉缸
I plant in August 1971 to February 1972, the 4L-20/8 air compressor conducted an intensive test, a total of 800 hours operation, the machine is operating normally, the removal of all moving parts worn normal, under the exhaust pressure 8 kg / cm ~ 2 case, the displacement of 32 m ~ 3 / min, all levels of exhaust pressure and temperature are also normal. In the course of the trial, some problems have also arisen. After measures have been taken, they have been resolved one after another. Test is driven by the belt, the measures to be taken are briefly described as follows: Because the number of revolutions from 400 rev / min to 600 rev / min, the inertial force also increased accordingly, in order to reduce the machine vibration, the piston will be changed to aluminum Pistons, the weight of the piston near the original machine, at the same time the original weight of cast iron into the steel by welding lead weight, the weight of the screw material from 35 to 40Cr (unchanged size). After taking measures, there have been pull cylinder