Common problems of excavator rollover accident and how to do it after rollover
In the normal operation of the excavator, small to several tons, to reach hundreds of tons or even larger machinery, for a variety of reasons, there will always be the possibility of a tilting accident or even happen occasionally;
After the tilting accident, the best solution is to restore the excavator to the normal position as soon as possible; however, because of the site, the lifting equipment, the experience, the organization of the rescue measures and so on, the excavator can not be recovered in time, even for a few days.
As we all know, the excavator in the tilting accident, in addition to the visible bending, breakage, deformation and other problems, there are some hidden problems that can not be seen, leaving a hidden danger to the excavator, if not eliminated in time, there will be secondary failure, resulting in greater loss;
Common problems of excavator rollover accident:
1 structural parts are deformed, damaged and cracked.
2 pipe parts are bent, damaged, and hydraulic oil, fuel and lubricating oil are lost.
3 do not invert the failure caused by changes in the position of the side components, such as batteries or coolers.
4 deformation and distortion of cab, sheet metal panel and bracket.
5 the force of the parts of the box type is damaged.
6 damaged parts of cooler.
The impact failure of the 7 revolving support parts.
8 the damage caused by the short time operation of the engine which has not stopped in time.
9 damage to other external accessories, such as filter parts.
These problems, remove seventh, eighth items, can be visual inspection, only these two items can not be directly checked and judged, and, often these two problems if not timely treatment, will bring serious losses to the normal operation of the future excavator.
In today's internal combustion engine design, in order to maximize the performance of the excavator, the properties of the materials used to make the excavators are in the extreme, and there is no more than the 4146 engine, 100 horsepower engine, and the self weight 1400KG excavator.
In this case, there are great hidden dangers in the tipping accident of some excavators due to their strength problems.
More than one time to deal with the tilting accident of the excavator, in the case of more than one hour more than one hour, no matter how troublesome, it is necessary to deal with the fuel and lubricating oil which is excluded into the engine cylinder according to the direction of the excavator tilting, so as to avoid the incompressible liquid pads that cause the engine plug movement. The damage of the crank and connecting rod mechanism of the motive;
In some type of engine connecting rod, it has experienced not only a few times because the liquid pad causes the connecting rod to cause the compression force of the cylinder to be insufficient, and even the bending damage of the connecting rod breaks the cylinder body. It is more that the connecting rod is not bending seriously, but it affects the internal temperature of the engine in the end of the compression stroke, causing the engine to start cold start. If the smoke is strong enough, the cylinder will not output enough, so that the cylinder can be identified, but the failure of the fuel system parts is replaced.
There is also a more old type of engine crank and connecting rod mechanism, which will not occur because of the upper liquid pad of the piston, which causes the connecting rod to bend fault, but it will not start after the tilting excavator is restored. In dealing with the rollover accident of excavators, we must carefully analyze the characteristics of the accident and possible hidden dangers.
