The Importance of Lubrication in Plate Rolling Machines
This section discusses the importance of lubrication in plate rolling machines. Plate rolling machines are shaping machine tools used for continuous point bending of sheet metal, capable of rolling O-shaped, U-shaped, and multi-segment R-shaped sheets. Plate rolling machines vary in type depending on their application.
Based on the number of rollers, they are divided into three-roll and four-roll plate rolling machines. Three-roll machines are further divided into symmetrical three-roll plate rolling machines, horizontally adjustable three-roll plate rolling machines, curved downward adjustable three-roll plate rolling machines, universal three-roll plate rolling machines with an upper roller, and hydraulic CNC plate rolling machines. Based on the transmission system, they are divided into mechanical and hydraulic systems.
Below, we will discuss the importance of lubrication in plate rolling machines. Proper lubrication of the various transmission parts and sliding surfaces of the plate rolling machine is an effective measure to reduce power consumption and extend machine life. Therefore, plate rolling machines must select appropriate lubricating oils and greases and establish a necessary lubrication system.
I. Lubrication Methods---
Depending on the operating conditions of the plate rolling machine, box-type lubrication and periodic oiling lubrication are used respectively. The work roller bearings and sliding guide surfaces are lubricated using a manual pressure lubrication gun. The hydraulic transmission device uses a box-type lubrication system.
II. Lubricating Oil Selection ---
1. Lithium-based grease is used at all roller bearings and sliding guide plates.
2. The hydraulic transmission device uses the same type of hydraulic oil as the hydraulic system.
III. Lubrication System and Precautions ---
1. The sliding guide surfaces of the frame can be lubricated once per shift using a pressure lubrication gun.
2. Before each shift, lubricate all lubrication points and check that the hydraulic oil in the tank is at the specified level.
The hydraulic system oil should be changed after 150 hours of operation, and thereafter every 1500 hours of operation or once a year. The entire lubrication system should be cleaned after 150 hours of machine operation. If the machine is under continuous full load for extended periods, it should be cleaned every six months.
