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Advantages and development prospect of energy-saving gear oil pump

Advantages and development prospect of energy-saving gear oil pump
  With the continuous enhancement of human awareness of environmental protection and the continuous progress of society, people are attaching more and more importance to environmental protection. Therefore, energy conservation and emission reduction are imperative.Early gear pumps were hydraulic.Now, due to the need of environmental protection and energy saving, the mature use of servo motor and the substantial price reduction, in recent years, the full electric precision gear pump gradually increased, and subdivided into the development trend.It has the following characteristics:
  1. Electric-hydraulic gear pump is a new gear pump that integrates hydraulic and electrical transmission.It combines the full hydraulic "gear pump" of high performance, has the advantage of environmental protection and energy saving.This kind of electrohydraulic compound "gear pump" has become the development trend of "gear pump" technology.

  2. Full hydraulic gear pump has many unique advantages in the form of precision forming and complex products.It has evolved from the traditional single - cylinder liquid - filled and multi - cylinder liquid - filled type to the existing double - plate straight flow.Double plate direct pressure is symbolic, but its control technology system is difficult, high processing efficiency, hydraulic technology is difficult to master.

  3. Fully electric gear pump has a series of advantages, especially in environmental protection and energy saving.It is reported that the current excellent gear pump can save up to 70% energy.In addition, the servo motor injection control precision is high, the speed is stable, can be adjusted multistage.But the service life of all electric gear pump is not as good as that of all hydraulic gear pump.In order to ensure the accuracy of full hydraulic gear pump, servo valve must be used for closed-loop control.Servo valves are expensive and add to the cost.

  In the composition of the total cost of injection molding products, electricity accounts for a relative proportion.According to the requirements of "gear pump" and equipment processing technology, "gear pump" oil pump motor and all machinery and equipment consumption ratio of 50% to 65%, so it has the potential of environmental protection and energy saving.All electric injection molding machine in environmental protection and energy saving practical effect is an inherent advantage.However, as noted above, the overall cost of such production is high, leading to significant limitations in its application;At this stage, the industry was largely dominated by Japanese companies.Although domestic haitai 'an, Donghua and other plastic machinery companies have all released self-developed and designed electric injection molding machines, but the technical reliability of their products is still to be tested in the market.I think: in the short term, the country's all-electric plastic machinery and Japanese machinery and equipment will be difficult to match.
 The introduction of energy saving and environmental protection on injection molding machines and the development and design of environmental protection and energy saving injection molding machines are also the key trends of the professional technology and technology development of injection molding machines at home and abroad.This kind of technology mainly includes frequency conversion environmental protection and energy saving, frequency conversion pump environmental protection and energy saving, servo control environmental protection and energy saving.The actual effect of environmental protection and energy conservation can also reach 30 to 70 percent.

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