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如何自上料攪拌車(chē)零配件的噪音問(wèn)題？

所屬分類(lèi)：行業(yè)資訊發(fā)布時(shí)間：2021-03-31 來(lái)源：http://www.akware.net/ 瀏覽量：0

自動(dòng)上料攪拌車(chē)可能出現雜音的地方有很多，比如柱塞或馬達，還有溢流閥或者管路等等。我們來(lái)看一下柱塞或馬達出現噪音是怎么回事?

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?

吸空現象時(shí)造成液壓泵噪音過(guò)高的主要原因之一。當油液中混入空氣后，很容易在高壓區形成氣穴現象，并以壓力波的形式傳播，造成油液震蕩，導致系統產(chǎn)生氣蝕噪音，主要原因有兩方面；液壓泵內部元件過(guò)度磨損，如柱塞泵的缸體與配流盤(pán)、柱塞孔等配合件的磨損、拉傷，使液壓泵內泄漏嚴重，當液壓泵輸出高壓、小流量油液時(shí)將產(chǎn)生流量脈動(dòng)，引發(fā)較高噪音。此時(shí)可適當加大先導系統變量的機構偏角，以改善內泄漏對泵輸出流量的影響。液壓泵的伺服閥閥芯、控制流量的活塞也會(huì )因局部磨損、拉傷，使活塞在移動(dòng)的過(guò)程中脈動(dòng)，造成液壓泵輸出流量和壓力的波動(dòng)，從而在泵出口產(chǎn)生較大振動(dòng)和噪音。此時(shí)可對磨損、拉傷嚴重的元件進(jìn)行刷鍍研配或更換處理。

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.

壓泵流盤(pán)也是引發(fā)噪音的重要元件之一。配流盤(pán)在使用中因表面磨損或油泥沉積在卸荷槽開(kāi)啟處，都會(huì )是卸荷槽變短而改變卸荷位置，產(chǎn)生困油現象，繼而引發(fā)較高噪音。

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.
自動(dòng)混凝土攪拌車(chē)

溢流閥也會(huì )產(chǎn)生噪音，其原因主要有三個(gè)方面：一是，油液中混入空氣，在先導閥前腔內形成氣穴現象而引發(fā)噪音。此時(shí)只要排盡空氣就可噪音問(wèn)題；二是，針閥過(guò)度磨損，致使針閥錐面與閥座不能密合，造成先導流量不穩定、產(chǎn)生壓力波動(dòng)而引發(fā)噪音，此時(shí)更換針閥或及時(shí)修理即可；三是，先導閥因彈簧疲勞變形造成其調壓功能不穩定，使得壓力波動(dòng)過(guò)大而引發(fā)噪音，此時(shí)應更換彈簧。

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.

自動(dòng)上料攪拌車(chē)的管路也會(huì )產(chǎn)生噪音，原因多半是管路死彎過(guò)多或固定卡子松脫。所以在管路的布置上應該避免死彎，對松脫的卡子須及時(shí)擰緊。

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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