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为了提高电磁阀的可靠性,我们对电磁阀进行了三项修改。第一,支架尺寸由原来的58毫米缩短到55毫米,把牵引电磁铁的行程由原来的25毫米降至22毫米而增加了牵引电磁铁的拉力。但因此而缩短了通气孔径,故将阀套侧孔扩成如图所示的形状而予补救。第二,阀套里孔由原来的φ30毫米扩成31毫米,减少阀芯与阀套在组装好以后因积累误差产生的抗劲。第三,拉杆外径光洁度拋成▽8以上,以减少摩擦力,提高灵敏度。拉杆头部变细,避免在组装时将小碗形圈里孔划
In order to improve the reliability of the solenoid valve, we made three changes to the solenoid valve. First, the stand size is shortened from 58 millimeters to 55 millimeters, reducing the stroke of the traction electromagnet from 25 millimeters to 22 millimeters to increase the pulling force of the traction electromagnet. However, the vent hole diameter is shortened, so the hole on the valve sleeve side is expanded to the shape as shown in the figure to remedy the problem. Second, the hole in the sleeve expands from the original φ30 mm to 31 mm to reduce the resistance caused by the accumulated error when the valve core and the valve sleeve are assembled. Third, the rod diameter finish cast ▽ 8 above, in order to reduce friction and improve sensitivity. Tie rod head thinning, to avoid small bowl-shaped circle hole in the assembly process