搅拌车液压件的“致病”因素分析
混凝土搅拌车液压的“致病”因素：污染、过热和进入空气。如果懂得一些常识原理，知道导致故障的3个有害因素，就能使搅拌车长期处于良好的工作状态。
"Pathogenic" factors of hydraulic pressure of concrete mixer: pollution, overheating and entering air. If you know some common sense principles and know the three harmful factors leading to the failure, you can make the mixer in good working condition for a long time.
一，搅拌车工作油液进入杂质而变质，进入油液中的杂质的来源有灰、砂、土等：
1、 The working oil of the mixer truck deteriorates due to impurities. The sources of impurities in the oil include ash, sand, soil, etc
液压件外部不清理，不清理杂质加油被带入系统，或通过损坏密封圈进入系统
The outside of the hydraulic parts is not cleaned, impurities are not cleaned, and the refueling is brought into the system, or enters the system by damaging the sealing ring
内部清理不干净，在油箱或部件内容易留下微量的杂质
If the internal cleaning is not clean, it is easy to leave trace impurities in the oil tank or components
加油容器，用具要干净
The refueling container and utensils shall be clean
油液存方不当，在加入前油就不干净或已变质
The oil is stored improperly, and the oil is not clean or deteriorated before adding
已经变质的油会损坏零件。被损坏的金属离分子悬浮在油中。
Deteriorated oil can damage parts. The damaged metal molecules are suspended in the oil.
杂质会造成零件的损坏与腐蚀，尤其是对于精加工的部件，它们会擦伤皮管的内壁、油封圈和填料，而这些东西损坏后又会导致液压系统无法正常工作。
Impurities will cause damage and corrosion of parts, especially for finished parts, they will scratch the inner wall of leather pipe, oil seal ring and packing, and these things will cause the hydraulic system to fail to work normally after being damaged.
二，液压系统过热可能是以下一种或多种原因造成：
2、 Overheating of the hydraulic system may be caused by one or more of the following reasons:
当油中进入空气或水分，液压泵把油液转变为压力时，空气和水分就会因热量增加导致过热
When air or moisture enters the oil and the hydraulic pump changes the oil into pressure, the air and moisture will overheat due to the increase of heat
液压系统内的油平面过高，油液强烈搅动，而引起过热
The oil level in the hydraulic system is too high and the oil is stirred strongly, resulting in overheating
质量较差的油可能变稀，使外来物质漂浮或与水有亲合力，这样也会引起过热
Poor quality oil may become thinner, causing foreign substances to float or have affinity with water, which will also cause overheating
工作时超负荷工作，也会产生热量
Working overload will also produce heat
回油阀调整不当或未及时更换已损坏零件，也会产生热量。
Improper adjustment of the return valve or failure to replace damaged parts in time will also generate heat.
三，当空气进入油液中会导致下列几种情况：
3、 When air enters the oil, it will cause the following conditions:
当加油时操作不当，导致有气泡混入油内而带入油管中
Improper operation during refueling causes bubbles to mix into the oil and bring them into the oil pipe
接头松动或油封破损，工作时候空气被吸入
The joint is loose or the oil seal is damaged, and the air is sucked in during operation
油管路被磨穿、擦破或腐蚀，因而空气进入。
The oil pipeline is worn, scratched or corroded, so air enters.
当空气进入油中除引起过热外，如果被压缩的体积大约有20%是属于被溶的空气，则压力下降时便会形成泡沫。
When air enters the oil, in addition to overheating, if the volume of the compressed volume is about 20% of the dissolved air, the foam will form when the pressure drops.
而工作液压缸在减压回油时，带泡沫的油液就会形成“海绵”的性质。此外，油中含有许多泡沫会增加总体积，将造成油箱或储油器的溢油现象。
When the working hydraulic cylinder is decompressed, the foam oil will form the sponge character. In addition, many bubbles in the oil will increase the total volume, causing oil spills or oil spills.
含有空气的工作油，在传递动力时会产生急跳的痉挛现象，含有空气的工作油，还会造成液压泵发生气穴的危险，由此而产生更大的吸力，会把更多的空气连同其他杂质都吸入系统内。因油中进入空气而产生过热，空气进入的同时也会带进灰尘，这些情况会使油很快变质
The working oil containing air will produce jerk spasm when transmitting power. The working oil containing air will also cause the risk of cavitation of the hydraulic pump, resulting in greater suction, which will suck more air and other impurities into the system. Overheating is caused by air entering the oil, and dust will be brought in at the same time. These conditions will quickly deteriorate the oil
下一篇：混凝土搅拌制从未如此简单!上一篇：混凝土自上料搅拌车坠桥刹车原因就是它
