Compared with mechanical pipe bending machine, electro-hydraulic driven pipe bending machine has the following significant advantages. Based on technical characteristics and practical application scenarios, the analysis is as follows:
1.Stronger power performance, suitable for high intensity work.
Continuous and stable output: electro-hydraulic drive driven by an electric motor hydraulic pump. power transmission uniform, no quenching phenomenon. Electric hydraulic rebar benders, for example, can bend steel bars more than 32mm in diameter, while mechanical benders are prone to power loss when processing steel bars of the same size, resulting in bending angle bias or equipment overload.
Large-tonnage capability: Hydraulic system through high pressure oil transmission power, can easily meet the largetonnage bending requirements.
2.Higher bending accuracy to meet strict standards
Precise angle control: An angle error of less than ± 0.5 ° can be achieved by combining electrohydraulic drive, high precision hydraulic valve and electronic positioning system. It supports precise processing of standard and complex shapes. For example, an electrohydraulic numerical control bending machine uses a closed-loop control system. Accuracy of bending angle and dimensions is ensured by real-time feedback of the sensor to the position of the slider. On the contrary, mechanical bending machine, due transmission inertia, will still rotate 1-3 degrees after the power supply is cut off, resulting in angle deviation.
Consistency guarantee: hydraulic system pressure stability, not affected by changes in oil temperature and viscosity, to ensure consistent bending results throughout the day. On the contrary, the precision of mechanical bending machine may be reduced by gear wear or increasing transmission clearance after long operation.
3.It greatly improves the convenience and security of operation.
1. High-efficiency operation for single person: The electric hydraulic bending machine is equipped with user-friendly handle and pedal switch, which can be started by connecting with the regular power supply. Flexible layout. For example, a hand-held electric hydraulic steel bar bending machine with an integrated design allows two people to the straightening and bend steel bars more than 10 times more efficiently than manual bending. However, mechanical benders require multiple operators, and adjusting the bends requires parking and manual adjustment.
Integrated safety protection: Hydraulic system is equipped with safety guards, emergency braking and overload protection devices. Automatic shutdown when encountering resistance to equipment damage and safety accidents. For example, in the bending process of an electric hydraulic steel bar bending machine, if the bar is jammed, the hydraulic valve group immediately releases pressure to prevent the motor from burning out or the transmission components from breaking. However, when mechanical bending machine is overloaded, it is easy to damage gear or worm wheels because of inertia.
4.Low maintenance cost and long service life;
3. Optimization of lubrication and abrasion resistance: Hydraulic oil, as a transmission medium, can lubricate relatively moving surfaces on its own to reduce wear and tear of components. For example, key components of a hydraulic bending machine, such as cylinders and sliders, are made of high-strength materials that are highly abrasive through precise machining and heat treatment. Conversely, transmission components of mechanical bending machines, such as gears and chains, require regular lubrication and are prone to iron filings due to friction and accelerated wear.
Low failure rate: The electrohydraulic two-phase flow system has simple structure and few components, so the failure rate is much lower than mechanical bending machine. For example, pure electric servo bending machines do not use hydraulic fluid, do not require to replace hydraulic components or deal with leakage issues. Maintenance costs can be reduced by more than 50%, while gearboxes and chains in mechanical flexors require regular maintenance and can easily become clogged due to iron filings.
V. Energy conservation and environmental protection, meet the requirements of green buildings;
High energy efficiency: Electro-hydraulic transmission consumes electricity only during bending cycle. The motor stops idling and energy consumption is reduced by 20% to30% compared to mechanical bending machines.
Noise and vibration control: Hydraulic system operating smoothly, noise below 70 dB. On the contrary, the gear meshing and chain transmission of mechanical bending machine will produce great noise and vibration, which will affect the operator's health.
