自動上料攪拌車油壓低的因素是什么？
工作過程的中科聚峰自動上料攪拌車、油壓是否低于0.2 mpa(或發(fā)動機(jī)轉(zhuǎn)速的變化和高、低),它應(yīng)該立即停止尋找原因,故障排除后能繼續(xù)工作,否則將會導(dǎo)致燒瓦、汽缸等重大機(jī)械事故。低油壓的主要原因如下。
If the oil pressure of zhongkejufeng automatic loading mixer is lower than 0.2 MPa (or the change of engine speed and the high and low speed), it should stop immediately to find the cause, and continue to work after troubleshooting, otherwise it will lead to major mechanical accidents such as tile burning and cylinder burning. The main causes of low oil pressure are as follows.
(1)機(jī)油不足
(1) Insufficient oil
如果油量不足，就會減少油泵內(nèi)的油量，導(dǎo)致油壓下降，加重曲軸和軸承、缸套和活塞的磨損。
If the oil quantity is insufficient, the oil quantity in the oil pump will be reduced, resulting in the decrease of oil pressure, which will aggravate the wear of crankshaft and bearing, cylinder liner and piston.
(2)發(fā)動機(jī)溫度過高
(2) Engine temperature too high
如果發(fā)動機(jī)溫度過高，不僅加速機(jī)油老化、變質(zhì)，而且還容易使機(jī)油變薄，導(dǎo)致機(jī)油壓力下降。
If the engine temperature is too high, it will not only accelerate the aging and deterioration of the oil, but also make the oil thin, resulting in the decrease of the oil pressure.
(3)油泵停止或泵油量不足
(3) Oil pump stops or pump oil volume is insufficient
固定銷的傳動齒輪和傳動軸油泵減免或交配鍵脫落,油泵吸入異物和油泵齒輪卡住,這將導(dǎo)致油泵停止運(yùn)行和油壓降0。
The drive gear of the fixed pin and the oil pump of the drive shaft are relieved or the mating key is off, the oil pump suction foreign matters and the oil pump gear are stuck, which will cause the oil pump to stop running and the oil pressure to drop to 0.
泵軸和襯套之間的差距時(shí),齒輪端面之間的差距和泵蓋,齒側(cè)間隙、徑向間隙超過允許值由于磨損,它將導(dǎo)致泵油體積的減少,導(dǎo)致機(jī)油壓力下降的結(jié)果。
When the gap between the pump shaft and the bushing, the gap between the end face of the gear and the gap between the tooth side and the radial clearance of the pump cover exceed the allowable value due to wear, it will lead to the reduction of the volume of the pump oil and the decrease of the oil pressure.
（4）曲軸與連桿軸承間隙過大
(4) Excessive clearance between crankshaft and connecting rod bearing
發(fā)動機(jī)長期使用后，曲軸與連桿軸承的配合間隙會逐漸增大，油壓也會降低。
After the engine is used for a long time, the fit clearance between crankshaft and connecting rod bearing will gradually increase, and the oil pressure will also decrease.
(5)油濾器堵塞
(5) Clogged oil filter
當(dāng)濾油器堵塞，油液無法流動時(shí)，將濾油器底座上的閥推開，油液不經(jīng)過濾進(jìn)入主油道。如果閥的開啟壓力調(diào)節(jié)過高，當(dāng)過濾器被堵塞時(shí)，閥不能及時(shí)開啟，導(dǎo)致油泵壓力增大，內(nèi)部泄漏增加，主油通道供油減少，導(dǎo)致油壓下降。
When the oil filter is blocked and the oil cannot flow, push the safety valve on the oil filter base open, and the oil will not be filtered into the main oil passage. If the opening pressure of the safety valve is adjusted too high, when the filter is blocked, the safety valve cannot be opened in time, resulting in the increase of the oil pump pressure, the increase of internal leakage, the decrease of oil supply in the main oil channel, and the decrease of oil pressure.
(6)止回閥損壞或失效
(6) Damage or failure of check valve
如果回油閥彈簧疲勞軟化或調(diào)整不當(dāng)，閥座與鋼球表面磨損或被污垢粘住或松合，回油量將顯著增加，主油通道的油壓也將下降。
If the spring of the oil return valve is fatigued and softened or adjusted improperly, the valve seat and the steel ball surface are worn or stuck or loosened by dirt, the oil return volume will increase significantly, and the oil pressure of the main oil passage will also decrease.
(7)油水散熱器或管路漏油
(7) Oil radiator or pipeline leaks oil
油水散熱器和管道泄漏，會使油水壓力下降。如果管道被污垢堵塞，也會增加阻力，減少油流和油壓。
Leakage of the oil-water radiator and pipes will reduce the oil-water pressure. If the pipe is blocked by dirt, it will also increase resistance and reduce oil flow and oil pressure.
(8)油壓傳感器故障或油管堵塞
(8) Oil pressure sensor failure or oil pipe blockage
如果油壓傳感器出現(xiàn)故障，或者從主油路到油壓傳感器的油管由于污垢的積聚而不能順暢流動，油壓計(jì)將顯示油壓下降。
If the oil pressure sensor fails, or the oil pipe from the main oil circuit to the oil pressure sensor fails to flow smoothly due to the accumulation of dirt, the oil pressure gauge will display the decrease of oil pressure.
(9)吸油盤堵塞
(9) Oil suction cup blocked
如果油太臟，太粘，很容易堵塞油盤。當(dāng)發(fā)動機(jī)小油門低速運(yùn)轉(zhuǎn)時(shí)，油泵吸油量不大，主油通道仍能建立一定的壓力，油壓將正常;但是，當(dāng)加速器高速運(yùn)行時(shí)，由于吸盤阻力大，油泵吸油量會顯著降低，從而導(dǎo)致油壓計(jì)顯示值下降。
If the oil is too dirty and sticky, it is easy to block the oil pan. When the engine is running at a low speed with a small throttle, the amount of oil absorbed by the oil pump is small, and a certain pressure can still be established in the main oil passage, so the oil pressure will be normal; however, when the accelerator is running at a high speed, the amount of oil absorbed by the oil pump will be significantly reduced due to the large resistance of the suction cup, resulting in the decrease of the display value of the oil pressure gauge.
(10)油品等級錯(cuò)誤或者質(zhì)量不合格的
(10) Products with wrong grade or unqualified quality
不同類型的發(fā)動機(jī)必須添加不同的機(jī)油，同一類型的發(fā)動機(jī)在不同的季節(jié)也應(yīng)使用不同企業(yè)的機(jī)油。如果機(jī)油牌號錯(cuò)誤，由于機(jī)油粘度過低，增加了泄漏量，發(fā)動機(jī)就會運(yùn)轉(zhuǎn)，從而降低了機(jī)油壓力。
Different types of engine must be added with different oil, and different brands of oil should be used for the same type of engine in different seasons. If the oil grade is wrong, because the oil viscosity is too low, the leakage is increased, the engine will run, thus reducing the oil pressure.
(11)調(diào)壓閥設(shè)定壓力過低
(11) Set pressure of pressure regulating valve is too low
如果將調(diào)節(jié)閥設(shè)置在油壓較低的位置，則無法有效地將油輸送到潤滑部位，導(dǎo)致機(jī)械故障。如果油壓過高，會增加燃油消耗，給油泵和潤滑部件增加負(fù)荷，損壞油封，造成漏油。
If the regulating valve is set at the position with low oil pressure, the oil cannot be effectively delivered to the lubricating part, resulting in mechanical failure. If the oil pressure is too high, it will increase the fuel consumption, load the oil pump and lubricating parts, damage the oil seal and cause oil leakage.
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