With the rapid development of the precision rolling mill and turk head rolling machineindustry, people’s attention has also increased. Small wire and strip rolling mills are currently widely used in accuracy rolling mills and metal processing industries. High efficiency is its advantage, and the wire rolling mill can be customized according to user requirements, so it is very popular with users.
Rolls are the key components of small 2 hi rolling mills. If the quality of the rolls does not meet the requirements, the production efficiency of the 4 hi rolling mills will naturally not keep up. The use of the roll is not only related to its own quality, but also has a lot to do with the billet of the rolled product. If the user rolls a billet with high hardness for a long time, the service life of the roll will also be reduced.
The choice of lubrication form for typical parts of small strip rolling mills is critical. For example, thin oil circulating lubrication is used between the working and the cooling system; the working and supporting bearings are generally lubricated with dry oil, and oil film bearings and oil mist and oil-air lubrication are used at high speeds. ; Gear frame, motor bearing, reducer in electric pressure device are lubricated with thin oil circulation; kunway, coupling, universal joint shaft and its balance mechanism, rolling mill window plane guide friction pair are lubricated with dry oil.
The rolling process of the precision rolling mill and profile drawing machine is mainly driven by the motor drive to drive the reducer and the main shaft of the gearbox for distribution support. The spindle also bears the impact force generated during the rolling process of the billet and the weight of the roll itself, so the quality and material of the roll should also be reasonably selected, generally based on the rolling speed and rolling product specifications.
The friction between the reducer or the gearbox and the bearing during high-speed operation is prone to oil leakage, so oil seals are used where they are in contact with the shaft. The design of the strip rolling machine guide is mainly for the quick and smooth entry of the rolling stock into the wire rolling mill. In industrial operations, in order to improve the operating efficiency of small wire rolling mills, it is necessary to carry out corresponding improvement measures.
