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如何解决自上料搅拌车零配件的噪音问题?

所属分类:行业资讯 发布时间:2021-03-31 来源:http://www.sqjituan.cn/ 浏览量:18

自动上料搅拌车可能出现杂音的地方有很多,比如柱塞或马达,还有溢流阀或者管路等等。首先我们来看一下柱塞或马达出现噪音是怎么回事?
There are many places where there may be noise, such as plunger or motor, relief valve or pipeline, etc. First of all, let's take a look at the noise of the plunger or motor?
吸空现象时造成液压泵噪音过高的主要原因之一。当油液中混入空气后,很容易在高压区形成气穴现象,并以压力波的形式传播,造成油液震荡,导致系统产生气蚀噪音,主要原因有两方面;液压泵内部元件过度磨损,如柱塞泵的缸体与配流盘、柱塞孔等配合件的磨损、拉伤,使液压泵内泄漏严重,当液压泵输出高压、小流量油液时将产生流量脉动,引发较高噪音。此时可适当加大先导系统变量的机构偏角,以改善内泄漏对泵输出流量的影响。液压泵的伺服阀阀芯、控制流量的活塞也会因局部磨损、拉伤,使活塞在移动的过程中脉动,造成液压泵输出流量和压力的波动,从而在泵出口产生较大振动和噪音。此时可对磨损、拉伤严重的元件进行刷镀研配或更换处理。
Suction phenomenon is one of the main reasons for high noise of hydraulic pump. When the oil is mixed with air, it is easy to form cavitation phenomenon in the high-pressure area, and propagate in the form of pressure wave, resulting in oil shock, resulting in cavitation noise in the system. The main reasons are two aspects: excessive wear of internal components of hydraulic pump, such as wear and tear of cylinder block, valve plate, plunger hole and other matching parts of piston pump, resulting in serious internal leakage of hydraulic pump High pressure, small flow of oil will produce flow pulsation, resulting in higher noise. At this time, the mechanism deflection angle of the pilot system variable can be appropriately increased to improve the influence of internal leakage on the pump output flow. The servo valve core of the hydraulic pump and the piston that controls the flow will also be worn and strained locally, which will make the piston pulsating in the process of moving, resulting in the fluctuation of the output flow and pressure of the hydraulic pump, resulting in greater vibration and noise at the pump outlet. At this time, the components with serious wear and tear can be processed by brush plating or replacement.
压泵流盘也是引发噪音的重要元件之一。配流盘在使用中因表面磨损或油泥沉积在卸荷槽开启处,都会是卸荷槽变短而改变卸荷位置,产生困油现象,继而引发较高噪音。
The pressure pump flow plate is also one of the important components causing noise. When the valve plate is in use, due to surface wear or oil sludge deposition at the opening of the unloading groove, the unloading groove will become shorter and the unloading position will be changed, resulting in oil entrapment, which will lead to higher noise.
              自动混凝土搅拌车
溢流阀也会产生噪音,其原因主要有三个方面:一是,油液中混入空气,在先导阀前腔内形成气穴现象而引发噪音。此时只要排尽空气就可解决噪音问题;二是,针阀过度磨损,致使针阀锥面与阀座不能密合,造成先导流量不稳定、产生压力波动而引发噪音,此时更换针阀或及时修理即可;三是,先导阀因弹簧疲劳变形造成其调压功能不稳定,使得压力波动过大而引发噪音,此时应更换弹簧。
Overflow valve will also produce noise, which is mainly caused by three aspects: first, the air mixed in the oil will form cavitation in the front cavity of the pilot valve, which will cause noise. At this time, as long as the air is exhausted, the problem of noise can be solved; second, the needle valve is excessively worn, resulting in the needle valve cone and seat can not be closed, resulting in the pilot flow instability, pressure fluctuations and noise, at this time, the needle valve can be replaced or repaired in time; third, the pilot valve's pressure regulating function is unstable due to spring fatigue deformation, resulting in excessive pressure fluctuations and noise The spring should be replaced when it is used.
自动上料搅拌车的管路也会产生噪音,原因多半是管路死弯过多或固定卡子松脱。所以在管路的布置上应该避免死弯,对松脱的卡子须及时拧紧。
The reason for too much clamp loosening or pipe self bending is that the pipe is too loose. Therefore, the layout of the pipeline should avoid dead bending, and the loose clamp should be tightened in time.
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