液压与机电的完美集成

电动伺服泵控单元(EPU)的诞生为设备制造商和终端用户在传统的液压和电动运动控制解决方案之外, 又多了一种紧凑型泵设备的选择。

穆格EPU是电动静压驱动系统的核心单元, 它将液压与电动两种技术的所有优势融合到一个独立的产品包内, 更加环保节能。设备总拥有成本(TCO)的分析一般都是从最初的设备购买成本和电动伺服泵控系统的运行成本两方面与传统液压设备做比较。

该产品设计紧凑, 无需复杂的液压配置,可直接安装到液压缸上。从而减少工作量和成本,同时缩短安装时间,大大简化维护工作。

穆格电动伺服泵控单元 (EPU)

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Electrohydrostatic Pump Unit

Higher Productivity

The trend in the industrial machinery market is a shift toward machine electrification for energy saving, lower cost of maintenance, and dynamic performance improvements. Electro-mechanical (EM) solutions cannot compete with the high forces available in hydraulic systems. To achieve the same forces it becomes impractical to use a servo motor combined with the addition of gearboxes and rotary to linear conversion. Electrohydrostatic actuation systems (EAS), however, have a wider range of force available in a relatively compact form factor while also eliminating the need for mechanical gearing. The elimination of mechanical gearing is an important factor when considering the relative advantages of EAS over electro-mechanical solutions. The lack of ball screws or gearing is compelling to machine builders seeking to improve the simplicity in a machine design.
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Higher Energy Efficiency

Moog worked with Dresden University to incorporate the EAS on a Die Cushion Press so it could be objectively compared to a traditional servo control system using servo valves. Die cushion presses normally have a capacity of 24 to 4,000 tons and perform a wide range of stamping operations in automotive plants including handling new materials and complex shapes such as external and internal body panels for doors, fenders, roofs and hoods.According to Professor Weber at Dresden University, energy savings during a complete machine cycle of approximately 30% could be achieved during tests while maintaining comparable dynamics and pressure control functionality. A 30% energy efficiency experienced by the elctrohydrostatic solution is a dramatic improvement especially when you consider the large amount of energy used by these kinds of machines in a single year. A future advantage is the substantial reduction or even substitution of oil cooling due to elimination of throttle losses.
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