图片名称

Ring chain knowledge

RELEASE TIME :

2018-04-07

Ring lifting chain in the wide use of there will be a variety of small problems, today we will take you to understand the ring lifting chain fatigue failure details.

　　

Ring lifting chain in the wide use of there will be a variety of small problems, today we will take you to understand the ring lifting chain fatigue failure details.
In the process of using the ring lifting chain, due to the two forces (tensile stress and shear stress) at the flat part at the same time, it is extremely easy to appear plastic deformation in this part, and the degree of deformation is the largest, which leads to the initiation of micro cracks in the foot of the lifting chain, and the surface scars of the ring lifting chain aggravate the surface stress concentration. The shoulder fracture of the ring chain has the characteristics of good shear fracture, while the inner part of the foot produces microcracks under the action of shear force, and the microcracks expand and lead to fracture. The fracture has obvious crack source, radiation zone and shear lip. This is where the fatigue failure of the ring chain comes from.


　　

As a result of the heavy workload of the mining ring chain, it may not be able to guarantee the perfect working state after a period of use, but we can improve the shortcomings of every small step, and strive to make our chain a comfortable experience of "physical and mental relaxation".

Many people do not pay much attention to the mining ring chain after use cleaning work, this is not desirable. The cleaning of the ring lifting chain after use is also extremely important. The neglect of the cleaning process shortens the service life of the ring lifting chain, and sometimes there will be faults and cause safety risks.
The cleaning process of the ring lifting chain must be "gentle", remember not to damage the chain, pay attention to the cleaning time do not use corrosive liquid, which will damage the chain, do not let the temperature of the chain is too high, so as to avoid deformation. When inspecting the ring chain, we must ensure that every stage is not ignored, and focus on observing whether the chain has deformation, corrosion, internal wear and so on. Once the chain is found to be severely worn, measurements should be made and recorded with relevant tools. An unused chain was selected to measure and record the data relative to the worn chain, and the proportion of the increase of the average pitch of the worn chain was calculated.
Lifting chain, mining ring chain and so on, pay attention to maintenance in the daily indispensable, as long as do frequent inspection, maintenance, in order to extend the service life of the chain, the chain to give full play to its role. (Provided by Shandong Deyao Electromechanical Technology Co., LTD.)

 

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