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本文所介绍的油压回路,是操纵地下卷取机卷筒胀缩的一个典型实例。地下卷取机是热轧带钢卷取机的一种。通常,地下卷取机所卷取的带钢温度可达数百度(℃),其宽度甚至超过2米。带钢的最大厚度为10多毫米。在卷取带钢的同时,还给其以适当的张力,可使带钢卷卷得更紧固些。带钢卷的重量,最大可达10吨。地下卷取机是由卷筒、减速机和驱动部分所组成。驱动部分采用直流电动机,其回
The hydraulic circuit introduced in this paper is a typical example of the control of the expansion and contraction of an underground coiler drum. Underground coiler is a kind of hot strip coiler. In general, strip coilers are coiled up to several hundred degrees Celsius (° C) and have a width of more than 2 meters. The maximum thickness of the strip is more than 10 mm. In the coiling of steel at the same time, give it to the appropriate tension, the coil can be wound more tightly. The weight of the coil, up to 10 tons. Underground coiler is composed of drum, reducer and drive parts. Drive part of the DC motor, the back