The multifunction Busbar Processing Machine is the patented product developed by our company. Comparing with the traditional busbar processing machine, this product has the following advantages and features:
1. The punching unit adopts column structure, with novel and unique design rendering reasonable force bearing, and thus effectively guarantees the long-term use without deformation;
2. The shearing unit adopts round integral structure, with novel and unique design rendering reasonable force bearing, and thus effectively guarantees the long-term use without deformation;
3. The bending unit uses integral structure and CNC angle control mode, allowing easy operation and high accuracy;
4. This machine adopts the design approach of double-layer work bench, truly realizing the simultaneous working of three stations without mutual interference;
5. The machine is provided with an automatic oil charge and discharge system, easy to operate, with the hydraulic oil charged into the oil tank via a filter so as to protect the entire hydraulic system from contamination;
6. This machine is provided with stainless steel oil tank to protect the hydraulic oil from corrosive deterioration, and extend the service life of hydraulic oil and the seals;
7. Swappable dies offering extreme convenience;
8. PLC control that is stable and reliable.
Busbar Processing Machine Cnc Punching Machine,Busbar Processing Machine,Steel Angle Punching Machine,High Speed Punching Machine JINAN EURO-ASIA MACHINERY CO., LTD , https://www.eaelectricmachine.com
From the perspective of domestic and international development, the energy-saving control of hydraulic excavators has the following development trends:
1) Electro-hydraulic proportional control intelligent
Electro-hydraulic proportional control began to be applied to construction machinery in the early 1980s and has been widely used in hydraulic excavators. The electro-hydraulic proportional technology is used in construction machinery, which can eliminate complicated and huge hydraulic signal transmission pipelines, and transmit hydraulic parameters by electric signals, which not only can accelerate the system response, but also make the control of the entire excavator power system more convenient and flexible. After entering the 1990s, with the development of computer technology, electro-hydraulic proportional control has become more "intelligent", and the application of electro-hydraulic proportional pumps and proportional valves has increased, resulting in the emergence of "smart hydraulic excavators."
This kind of intelligence is mainly reflected in the following aspects. First, the computer can automatically monitor the operating parameters of the hydraulic system and the diesel engine, such as pressure, diesel engine speed, etc., and can automatically control the entire excavator power system to operate in an energy-efficient state based on these parameters. Secondly, it can complete some semi-automatic operations, such as leveling, slope trimming, etc., the driver's proficiency requirements are reduced, but the quality of work can be greatly improved. Third, it is possible to perform fault diagnosis based on the monitored operating parameters to facilitate the maintenance of the excavator. The emergence of these functions has greatly improved the performance of the excavator.
2) Diesel electromechanical spray control
In the traditional mechanical speed control diesel engine, the circulating oil supply amount and the fuel injection advance angle of the fuel injection pump are all affected by the rotational speed, which makes it difficult to further improve the performance of the diesel engine. After the application of the EFI control on the diesel engine, the circulating fuel supply and the fuel injection advance angle of the pump can no longer be affected by the rotational speed, so that the excavator can always work at an optimum state and accelerate the response speed. The development of diesel electromechanical spray controller is an important part of improving the energy saving of excavators.
3) Load sensing control will continue to develop
Load sensing control began in the 1970s, and various engineering machinery hydraulic parts manufacturers have launched a series of related products. This system has good energy efficiency and maneuverability, and even unskilled drivers can adapt quickly. The emergence of proportional flow distribution valves further promoted the application of load sensing technology on excavators, further improving the maneuverability of excavators and solving the problems caused by the lack of skilled drivers in Western countries. Therefore, the demand for load sensing control excavators in developed countries will further increase.
4) Six-way multi-way valve continues to exist
Although load sensing systems with four-way valves provide precise operation, not all operations require precise operation, and skilled drivers can perform precise operations with non-load sensing system excavators. More importantly, the higher price of the load sensing system limits its application in developing countries. At present, many famous excavator manufacturers in the world include load-sensing excavators using four-way valves and excavators using six-way valve hydraulic systems such as positive flow and negative flow control. Proven manufacturing technology and low prices will continue to make the six-way multi-way valve work.
5) Further improve valve control and energy saving control
In the hydraulic system using the six-way multi-way valve, there are still many areas that can be improved, such as maneuverability, energy saving, etc., and various excavator production plants are still under study.
6) Multi-functional combination
In order to improve the performance of excavators, the combination of various energy-saving measures will be more extensive. In the past systems, a variety of functions have been integrated on the hydraulic pump, but due to various conditions, generally no more than three. For example, in hydraulic pumps, pressure cut-off, positive flow control and power limiting functions are integrated. Currently, various hydraulic pump schematics on the market are integrated with various functions. With the development of hydraulic technology, it is possible to integrate more functions on the pump.
7) Variable parameter control
In order to make the excavator better adapt to the load requirements under various working conditions, the setting parameters of some control components inside the power system will no longer be fixed values, but can change with the specific working conditions of the excavator. For example, on the EX series excavators produced by Hitachi Construction Machinery, the pressure difference of the pressure compensator on the load sensing valve can be changed with the working conditions, which enhances the adaptability of the excavator during operation. It can be predicted that in the future excavator power system, more control parameters will be adjusted, which makes the excavator work more efficiently and easier to operate.
8) Pump-engine matching control will be further "intelligent"
With the help of computer control technology, the matching control between the pump and the engine will further realize “intelligenceâ€, and the combination between the two will be closer and achieve integrated control. In this kind of control, the controller can automatically adjust the hydraulic pump and the engine according to the change of the working condition, and the fuel consumption is minimized while ensuring that the output power meets the working needs.
9) Fieldbus technology and embedded systems will be widely used
As the degree of "intelligence" of hydraulic excavators increases, various sensors and controllers will spread throughout the excavator, which will cause the interior of the excavator to be filled with various wires and joints, which complicates the control system and reduces reliability. The solution to this problem is to use a fieldbus to connect all the sensors, controllers and actuators with a single serial line, while ensuring the system's powerful features, while having a simple structure and high reliability. At present, in the field of mobile machinery, there is such a field bus, called CAN bus, but it has not been widely used on excavators. The development of electronic technology makes the control chip smaller and more powerful. It has almost no space on the excavator and can be completely embedded in various parts. This is also the development direction of the excavator control system in the future.
In the field of hydraulic excavators, the purpose of energy-saving control is not only to improve fuel efficiency, but more importantly, to achieve a series of effects of reducing the cost of use. According to the data, nearly 40% of the faults in construction machinery come from the hydraulic system, and about 15% of the faults come from the engine. The use of energy-saving technology can improve the utilization of engine power, reduce the power loss of the hydraulic system, better match the power system and the power required by the load, reduce the working strength of the engine and hydraulic components, and improve the reliability of the equipment in use. Sex.