本文關(guān)鍵詞： 數(shù)字調(diào)速閥 先導(dǎo)控制 數(shù)字仿真　出處：《機(jī)床與液壓》2016年06期 　論文類型：期刊論文

【摘要】：調(diào)速閥一般由定差減壓閥和節(jié)流閥串聯(lián)組成。當(dāng)其工作在大壓差、大流量場(chǎng)合下,布置在主回路上的減壓閥壓力損失大,會(huì)帶來(lái)油液溫升等問(wèn)題。提出一種先導(dǎo)數(shù)字調(diào)速閥,主閥為流量放大原理插裝閥,先導(dǎo)閥為由高速開(kāi)關(guān)閥與定差減壓閥串聯(lián)組成的數(shù)字調(diào)速閥。高速開(kāi)關(guān)閥為PWM控制數(shù)字閥,節(jié)流損失小、重復(fù)性好、抗干擾能力強(qiáng)。將定差減壓閥應(yīng)用在先導(dǎo)回路,由于控制流量小,可有效解決壓力損失大、發(fā)熱大問(wèn)題。通過(guò)理論推導(dǎo)和仿真研究,驗(yàn)證了該閥可行性,并得出該閥性能與結(jié)構(gòu)參數(shù)之間的關(guān)系,為其設(shè)計(jì)提供了理論基礎(chǔ)。
[Abstract]:The speed regulating valve is usually composed of a constant differential pressure reducing valve and a throttle valve in series. When the valve operates under the condition of large pressure difference and large flow rate, the pressure loss of the pressure reducing valve arranged on the main circuit is large, which will bring about the oil temperature rise and so on. This paper presents a pilot digital speed regulating valve. The main valve is the cartridge valve of flow amplification principle, the pilot valve is a digital speed regulating valve composed of high speed switch valve and fixed differential pressure reducing valve in series. The high speed switch valve is a digital valve controlled by PWM, with small throttle loss and good repeatability. The pressure reducing valve with fixed difference is used in the pilot circuit. Because of the small flow control, it can effectively solve the problems of large pressure loss and large heat. The feasibility of the valve is verified by theoretical derivation and simulation research. The relationship between the performance and structure parameters of the valve is obtained, which provides a theoretical basis for its design.
【作者單位】： 太原理工大學(xué)新型傳感器與智能控制教育部與山西省重點(diǎn)實(shí)驗(yàn)室;太重榆次液壓工業(yè)有限公司技術(shù)中心;
【基金】：supported by National Natural Science Foundation of China ( No. 51205271) Specialized Research Fund for the Doctoral Program of Higher Education ( No. 20121402120002)
【分類號(hào)】：TH134

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