The purpose and scope of application of machinery

This machine is a three roll symmetrical mechanical plate rolling equipment, mainly used for bending metal plates into cylindrical tubes of various diameters during cold working processes. It is widely used in mechanical industries such as boilers, chemicals, steel structures, mining, construction, shipbuilding, etc.

Technical parameters

Roll thickness 12mm

Roll width 2000mm

Steel plate yield limit 245MPa

Upper roller diameter Φ 220mm, wall thickness 35mm

The diameter of the lower roller is 194mm, and the wall thickness is 30mm

Main motor 5.5kW Level 6

Secondary motor 2.2kw, four stages

Main reducer JZQ-350

Secondary reducer JZQ-250

Electrical box accessories from Chint Electric

Turbine material copper

Material of shaft sleeve: copper

Gear material 45 steel, heat treated

Lift transmission alloy nut

Main structure and working principle:

1. This machine is a mechanically symmetrical plate rolling machine, which completes the rolling of cylindrical workpieces through the downward pressure of the upper roller and the rolling of the upper and lower rollers.

2. This machine consists of two main parts: the working part and the transmission part, which are to be welded onto the overall chassis. The working part consists of left and right roller bearing seats, one upper roller, two lower rollers, lifting screw worm gear, and some auxiliary parts. The lower roller is the main transmission roller, and the upper roller is the passive roller. The upper roller can be adjusted up and down along the height direction. The transmission part consists of a main motor, a main reducer, and other auxiliary components.

3. The transmission of the lower rollers is achieved by the main motor through the main reducer. The output shaft of the main reducer is transmitted to the two lower rollers through a set of gears, and the change in the direction of rotation of the roller shaft is obtained by reversing the direction of the main motor.

4. The implementation of the up and down movement of the upper roller is achieved by the auxiliary motor driving the worm and worm gear mechanism under the bearing seats at both ends of the roller through the auxiliary reducer, so as to rotate the screw fixed on the worm gear and move the lifting screw up and down.

5. The unloading device is designed to remove the workpiece after the cylindrical part is rolled. Before unloading, the upper roller is first raised to the position, and a balancing device is used to press the upper roller at the end of the upper roller. Then, the pin shaft on the tilting bearing seat is pulled out, the tilting bearing seat is overturned, and the rolled workpiece can be released from one end of the upper roller.

Equipment acceptance:

1. The acceptance of this plate rolling machine shall be carried out in accordance with this Technical Document, the current national standards for plate rolling machines, and the supplier's enterprise standards.

⑴ JB/T8796-1998 "Precision of Plate Rolling Machine";

⑵ JB/T8797-1998 "Types and Basic Parameters of Small and Medium sized Three roll Plate Rolling Machines";

JB/T9971-1999 "Noise Limits for Pipe Bending Machines and Three Roll Plate Rolling Machines";

2. Acceptance stage: The supplier's manufacturing plant conducts acceptance inspection, and the goods are shipped after passing the inspection.