Maintenance work of amusement equipment automatic control aircraft in the wear stage

Amusement equipment self-control aircraft maintenance work during the wear stage 305 . The plane rotates around the central rocket and gradually rises. Tourists hold the joysticks to ascend and descend at will during the flight, chasing each other, it is fun and forgetting to return. Such fun park amusement equipment children have to play when they see it, and use it for a little time There will be wear and tear in the segment. How to make it continue to be profitable? The maintenance of the wear phase cannot be ignored.

One: the running-in phase.

　　 The surface of the friction pair of the new amusement equipment self-controlled elevator has a certain roughness, and the actual contact area is very small. Therefore, when the running-in starts, the wear is very rapid. As the running-in continues, the rough surface The bulge is gradually polished, the actual contact area gradually increases, the surface becomes smoother and smoother, and the wear rate gradually decreases. When it reaches a certain level, it tends to stabilize, and the running-in phase ends at this time. The amount of wear during this period is called the initial grinding and topping.

　　 Two: Stable running-in stage.

　　This stage is the normal working stage. After running-in, the friction surface is hardened. The microscopic geometry changes, and the wear is slow and stable. In the latter part of this stage, due to metal fatigue, the wear is relatively accelerated, but the work can still be continued. When the fatigue limit of the metal is approaching, the machine must be overhauled regularly to prevent the machine from being worn out and causing electrical and mechanical accidents.

　　 three: severe wear stage.

　　 At this stage, since the metal surface layer has basically reached the fatigue limit, the friction conditions have changed significantly (such as a sharp increase in temperature, significant changes in surface metal structure, changes in microscopic geometry, and increased gaps. , Lubrication conditions deteriorate, etc.), so that the wear rate increases sharply, the mechanical efficiency is reduced, the accuracy is lost, abnormal noise and vibration are generated, and the changes in the mechanical properties of the materials cause the parts to fail and must be repaired.