The Failure Forms of the Crane (Ⅰ)



 
 
The mechanical rotating of the crane is composed of different mechanical parts and components. In the long, frequent work, the mechanical parts often occur with varying degrees of damage or failure. The technician from Zhengzhou Huazhong Construction Machinery Co., Ltd will summarize several forms of part failure:

1.     The deformation of mechanical parts
The deforming phenomena of mechanical parts under operating stress or stress are ubiquitous nature, but excessive deformation will cause the failure of the parts. As a result, it fails to be subjected to a specified load, and it can not play the predetermined role with the operation interference with other parts and so on.

2.     A mechanical parts to wear
    The main types of wear are: mechanical friction wear, abrasive wear, adhesive wear, fatigue wear, fretting wear and corrosion. The most common ones are the mechanical friction or wear, due to the uneven surface microstructure, and rolled out engagement Calibrating valley or peak plastic deformation. They are expressed as the change of the size, shape as well as the volume.
The main measures to reduce this wear are that the friction wear surface should have a suitable roughness surface and reasonable gap, and the surface should be reasonably lubricated.