2012年(464)
分类: Delphi
2012-08-14 17:47:09
In practical mining production, we often have the problems of quick-wear
parts. It affects equipment performance and production efficiency. It is a
regularly work for mining machines maintenance. Should we really want to keep
machines good condition, we have to learn daily repair at least.
At first, as
we all know, we should protect machine from hitting or damage. Ensure clean of
them and can not make machine contact with chemical things.
Besides, bearing
is responsible for the whole operation load. It is important to prolong bearing
service life. Good lubrication does much with operation efficiency, as well as
bearing use life. Above of all, the pouring lubricating oil must be clean, and
sealing is good.
Second of all, we should reduce the temperature effect to machine. During
operation, all the parts are running in their own normal temperature ranges.
That is, general cooling water is between 80-90。C, while the temperature range
of hydraulic system is 30-60。C. Both the lower and higher temperature can cause
components wear and damage, lubricating oil becoming bad, and material
performance weak and so on. Therefore, during in use, we should guarantee low
speed normal operation at preheated stage, so as to reach the standard
temperature for normal operation. In no case should the machine operates
overloaded in lower temperature. Similarly, higher temperature operation should
also be avoided. Operators should check values on the thermograph. If fault
occurs, operator should stop the machine at once, check and solve the problems.
As for the uncertain problems, we should not let it go and make work with trouble. In daily work, the work condition of cooling
system should be checked at times. As for water cooling machines, workers pay
attention to adding cooling water. As for wind cooling machines, you had better
to clean dust as regular intervals to ensure cooling air duct
smooth.
Finally, it is equipment minor repair, medium repair and overhaul.
The checking results should be kept records in detail, while not only includes
repair and replacement records, but also includes use and daily production
records, so that we can analysis and judge
machine fault quickly and accurately. The high requirement to equipment
efficiency and performance becomes the main limitation to machine’s cost and
quality. On the other hand, the machine (such as ) as well as
operation environment is main factor affecting equipment performance. So, in
order to improve performance, it is a must to enforce equipment management and
environment management.