4.5 m/min 4 Roll Bending Machine For rolling circular, oval Pipe By hydraulic drive

Quick Detail:

This 4 roller plate rolling machine is introduced arc bottom adjustment technology.Upper roller and bottom roller are driving roller.The power will pass planet reducer and the tooth of upper and down roller which will provide torque of rolling plate.Bottom roller may move in vertical so that tighten plate. Two sides of bottom roller is side roller and hydraulic pressure oil cylinder will move in arc. Four rollers will use tunning core rolling bearing. The advantage is Once feeding without the aid of auxiliary device which can finish the pre-bending of two ends of plate,roll cylinder and arc.Also it can check and form the metal plate and the rest straight edge is small. It is better than domestic other quantivalent product. It is characterized by high efficiency, lower energy and easy operation.

Description:

1. Up roller device

Up device is composed of motor, planet reducer, up roller bearing seat, up roller, double rows tunning core bearing etc.

Hydraulic motor can provide the requested power of rolling plate. Work pressure is 19.5MPa.

Double rows tunning core bearing use lower speed and heavy loader tunning core rolling bearing.

Material of up roller is 42CrMo.Hardness after rough machining and annealing treatment is HB260~300.

Hydraulic pressure of up roll will brake in balance.

2,Bottom roll device

Bottom roll device is composed of hydraulic pressure motor, planet reducer, bearing seat of bottom roller,oil cylinder of bottom roller, down roller, double tuning core bearing etc.

Hydraulic pressure can provide the requested driving power of rolling plate. Work pressure is 19.5MPa.

Oil cylinder of down roller will provide the clamping which can provide the friction for rolling.

Double rows tunning core bearing will use lower speed, tuning core rolling bearing of heavy loader.

Material of down roller is alloy metal 42CrMo.Hardness after rough machining and annealing treatment is HB260~300.

3,Side roller device

Side roller device is composed of aide roller, oil cylinder of side roller, bearing seat and tunning core bearing etc.

Side adjustable structure is driven side roller bearing by piston of oil cylinder with arc rising and falling.Match to roll different diameter cylinder.

Material of side roll is 42CrMo,Hardness of annealing treatment is HB260-300.

Turnover device is composed of turnover seat, oil cylinder of turnover etc. The piston of turnover oil cylinder will be treated by Chroming. Turnover of turnover device is easy to take out the plate along the roller.

5. Fixation, turnover side machine frame and base plate

Heavy and dependable welding frame will install in the down frame to ensure the precision and dependability. Fixed turnover side machine frame is Q235B steel plate welding parts. Tempering after welding and machining.Two cylinders of down roller will work without pole stomached. Keep uniformity of the system which work pressure and matching shall be fit. The effective area of oil cylinder is big. One place is active sealing and lifting speed shall comply with the process request. It is easy to control the synchro of two oil cylinder. It is easy to repair and strengthen the maintenance.

Bottom frame is welded in the whole and machine after relief the stress. The factor of anti-twisting section is high with good strength and rigidity. It is characterized by easy installation, convenient operation,lower request for foundation and coinvent to move.

6,Hydraulic pressure system

General introduction

Hydraulic system is fabricated according to national standard,industry standard and reasonable arrangement. We have considered high efficiency and saving energy, reduce the waste and heat source. The system is separated and connection point will use special sealing glue.Prohibit leakage. It is easy to maintenance.Hydraulic pressure pump is used high pressure oil pump, hydraulic pressure valve is used Yuci Youyan accumulated valve system. Testing pressure is 25MPa without leakage. The arrangement of pipeline is simple, less leakage and easy maintenance. To guarantee oil liquid clean, it is designed oil filter in oil mouth of oil pump. Pressure oil from oil pump can enter into pressure adjustable system.Then through valve lump, via diverting valve to oil cylinder.

Hydraulic pressure system

Hydraulic pressure system is composed of oil pump, valves, flow connection and hydraulic pressure parts etc.

Hydraulic valve is used accumulated valve The arrangement of pipeline is simple and easy to maintenance and commissioning.