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当前位置:首页 »中科搅拌机新闻 » 常见问题 » 自动上料搅拌车油压低的因素是什么?

自动上料搅拌车油压低的因素是什么?

来源:https://www.jfjiaobanche.com 浏览:发表时间:2020-04-11
  工作过程的中科聚峰自动上料搅拌车、油压是否低于0.2 mpa(或发动机转速的变化和高、低),它应该立即停止寻找原因,故障排除后能继续工作,否则将会导致烧瓦、汽缸等重大机械事故。低油压的主要原因如下。
  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)机油不足
  (1) Insufficient oil
  如果油量不足,就会减少油泵内的油量,导致油压下降,加重曲轴和轴承、缸套和活塞的磨损。
  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.
中科聚峰
  (2)发动机温度过高
  (2) Engine temperature too high
  如果发动机温度过高,不仅加速机油老化、变质,而且还容易使机油变薄,导致机油压力下降。
  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
  固定销的传动齿轮和传动轴油泵减免或交配键脱落,油泵吸入异物和油泵齿轮卡住,这将导致油泵停止运行和油压降至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.
  泵轴和衬套之间的差距时,齿轮端面之间的差距和泵盖,齿侧间隙、径向间隙超过允许值由于磨损,它将导致泵油体积的减少,导致机油压力下降的结果。
  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)曲轴与连杆轴承间隙过大
  (4) Excessive clearance between crankshaft and connecting rod bearing
  发动机长期使用后,曲轴与连杆轴承的配合间隙会逐渐增大,油压也会降低。
  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)油滤器堵塞
  (5) Clogged oil filter
  当滤油器堵塞,油液无法流动时,将滤油器底座上的安全阀推开,油液不经过滤进入主油道。如果安全阀的开启压力调节过高,当过滤器被堵塞时,安全阀不能及时开启,导致油泵压力增大,内部泄漏增加,主油通道供油减少,导致油压下降。
  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)止回阀损坏或失效
  (6) Damage or failure of check valve
  如果回油阀弹簧疲劳软化或调整不当,阀座与钢球表面磨损或被污垢粘住或松合,回油量将显著增加,主油通道的油压也将下降。
  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)油水散热器或管路漏油
  (7) Oil radiator or pipeline leaks oil
  油水散热器和管道泄漏,会使油水压力下降。如果管道被污垢堵塞,也会增加阻力,减少油流和油压。
  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)油压传感器故障或油管堵塞
  (8) Oil pressure sensor failure or oil pipe blockage
  如果油压传感器出现故障,或者从主油路到油压传感器的油管由于污垢的积聚而不能顺畅流动,油压计将显示油压下降。
  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)吸油盘堵塞
  (9) Oil suction cup blocked
  如果油太脏,太粘,很容易堵塞油盘。当发动机小油门低速运转时,油泵吸油量不大,主油通道仍能建立一定的压力,油压将正常;但是,当加速器高速运行时,由于吸盘阻力大,油泵吸油量会显著降低,从而导致油压计显示值下降。
  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)油品等级错误或者质量不合格的
  (10) Products with wrong grade or unqualified quality
  不同类型的发动机必须添加不同的机油,同一类型的发动机在不同的季节也应使用不同品牌的机油。如果机油牌号错误,由于机油粘度过低,增加了泄漏量,发动机就会运转,从而降低了机油压力。
  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)调压阀设定压力过低
  (11) Set pressure of pressure regulating valve is too low
  如果将调节阀设置在油压较低的位置,则无法有效地将油输送到润滑部位,导致机械故障。如果油压过高,会增加燃油消耗,给油泵和润滑部件增加负荷,损坏油封,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.
  以上是中科聚峰厂家为大家介绍的相关内容,想要了解更多内容,欢迎访问网站:https://www.jfjiaobanche.com
  The above is the relevant content introduced by Zhongke Jufeng factory. To learn more, please visit the website: https://www.jfjiaobanche.com