问:液压系统中的压力表使用不久就发生故障不能用,请问有无避免此种现象的好办法? 答:如果影响压力表的是外界机械振动,那么在装设部位垫上防振橡胶或者把压力表装设在远离振动源就可以解决了。下面谈一谈压力波动引起的故障及排除方法。压力表原来是为测量静压而研制的,因此把一般压力表直接用于压力常变的液压回路中,则将发生以下问题,致使过早地报废,如: 1.指针摆动频繁,无法正确地读数。 2.指针精度降低。 3.波尔洞弹簧管损坏。 4.表内小齿轮、扇形齿等活动部分出现严重磨损。 Q: hydraulic pressure gauge used in the near future failure can not be used, is there any good way to avoid this phenomenon? A: If the impact of the pressure gauge is the external mechanical vibration, then place the installation pad anti-vibration rubber or put Pressure gauge installed away from the vibration source can be solved. Here to talk about the pressure fluctuations caused by the failure and troubleshooting. Pressure gauge was originally developed for the measurement of static pressure, so the general pressure gauge directly used in the constant pressure of the hydraulic circuit, the following problems will occur, resulting in premature scrap, such as: 1. Pointer swing frequently, can not be correct Readings. 2 pointer accuracy is reduced. 3. Boer hole spring tube damage. 4. Table pinion, fan-shaped teeth and other parts of the event of serious wear and tear.