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近年来,液压控制元件的发展趋势大致可以归结为高压化、大容量化、小型化、精密化、复合化,集成化、低噪声化和省能量化等。从三十年代以来,一直广泛应用以滑阀式结构为主的液压控制阀,由于受结构形式的限制,在许多方面已不能适应发展的需要。在这样的条件下,国外在七十年代初开始发展了一种新型的控制元件——二通插装阀,亦称锥阀、逻辑阀。它不仅是一种新型元件,而且还创造了一种崭新的液压控制回路技术。由于它具有一系列独特的优点,如
In recent years, the development trend of hydraulic control components can be generally attributed to high pressure, high capacity, miniaturization, precision, complex, integrated, low noise and energy saving. Since the 1930s, hydraulic control valves based on spool-type structures have been widely used. Due to the limitation of the structure, they have not been able to meet the needs of development in many aspects. Under such conditions, foreign countries started to develop a new type of control element in the early 1970s - two-way cartridge valve, also known as cone valve, logic valve. It is not only a new type of component, but it also creates a completely new hydraulic control loop technology. Because it has a series of unique advantages, such as