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挖掘机发动机转速失控分析!

日期:2019-06-25   来源:http://www.dyqicheng.com/
  挖掘机的维护、常见的错,问题是发动机转速失控,俗称“速度”现象是当前挖掘机维修、越来越多的高速失控,将导致杵柴油发动机汽缸和破碎轴等重大事故,柴油发动机通常是在启动或工作负载突然消失或减少故障发生时车辆,和工作负载速度下不会发生故障,让我们对挖掘机维修速度失控的问题进行分析。
  The maintenance and common faults of excavators are engine speed out of control, commonly known as "speed" phenomenon, which is the current excavator maintenance, more and more high-speed out of control, will lead to major accidents such as diesel engine cylinder and broken shaft. Diesel engine usually fails when starting or working load suddenly disappears or reduces the failure occurs, so that vehicles and working load speed will not fail. The problem of out-of-control maintenance speed of excavator is analyzed.
  1、惯性油浴式空气滤清器油太多,被吸入气缸内燃烧相当于增加了供油量,也会加快汽车的速度。
  1. Inertial oil-bath air filter has too much oil, which is sucked into the cylinder to burn, which is equivalent to increasing the fuel supply and accelerating the speed of the car.
  2、喷油泵柱塞部件由于安装歪斜或油封,还可以旋转让调速齿条失去小艇,尤其是多缸油泵会出现负荷减少、供油不能改变而造成转速下降的情况。
  2. The piston parts of fuel injection pump can also rotate to make the speed control rack lose the boat because of the installation of skew or oil seal. Especially, the multi-cylinder oil pump will reduce the load and the fuel supply can not be changed, which will cause the speed decline.
  3、单缸柴油机燃油泵调速器驱动滑套卡住,导致调速失灵,导致调速失灵。
  3. The sliding sleeve of fuel pump governor of single cylinder diesel engine is stuck, which leads to speed regulation failure and speed regulation failure.
  4,一些喷射泵柱塞套筒饲料和回油孔在同一平面位置,如果柱塞套筒定位螺丝太长块回油孔,它将导致返回石油不是的,导致石油供应也将激增导致速度。
  4. The feed and oil return holes of some jet pump plunger sleeves are in the same plane position. If the positioning screw of the plunger sleeve is too long, the oil return holes will not be free, and the oil supply will also increase sharply, which will lead to the speed.

  5、燃油喷射泵的调油齿在大的供油位置卡住或齿条与调速器拉杆失去控制,会造成调速情况。
  5. The adjusting teeth of fuel injection pump are stuck in the greatest position of fuel supply or the rack and Governor Rod lose control, which will cause speed regulation.
  6日,州长外壳的内部润滑)太多的速度将快甩,影响速度,滑动摩擦离合器的速度出现,高行长限速螺钉和松动,快速崛起或绑定,速度和推力轴承或破碎的弹簧州长轴承损坏,会导致调速器故障。
  On the 6th, the inner lubrication of the governor's housing) too much speed will swing quickly, affecting the speed, the speed of sliding friction clutch, the high-row length speed limit screw and safety loosening, rapid rise or binding, speed and thrust bearings or broken spring governor bearings damage, will lead to governor failure.
  柴油机在高速运行时,如不能立即停车和熄火,将会造成严重后果。因此,当它快速运行时,柴油发动机必须立即停止和失速。紧急措施如下:
  If the diesel engine can not stop and extinguish at high speed, it will cause serious consequences. Therefore, when it runs fast, the diesel engine must stop and stall immediately. Emergency measures are as follows:
  1、堵塞进气管,然后柴油机无法吸入空气就会熄火。
  1. Block the intake pipe, and then the diesel engine will stall if it can't inhale air.
  2、在行驶状态下可采用***重载,即制动器降低发动机转速后再熄火。
  2. High-grade heavy load can be used in the running state, that is, the brake reduces the engine speed and then extinguishes.
  3.将节流阀手柄置于无供油位置,打开泄压装置,使气缸无压缩力熄灭。
  3. Put the throttle valve handle in the position without oil supply and open the pressure relief device to extinguish the cylinder without compressive force.
  4、用扳手松开高压油管接头螺母,使柴油机不供油,也可将柴油机放出来。
  4. Use a wrench to loosen the high-pressure tubing joint nut, so that the diesel engine does not supply oil, but also can release the diesel engine.

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