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十一、调速回路 1.进油节流调速回路(之一):图11-1所示回路利用装在进油路上的节流阀来进行节流调速。油泵压力由溢流阀调定。改变节流阀的开口,便可改变通过节流阀的流量,实现油缸(油马达)速度的改变。图11-1(a)是由于油缸一个方向的运动采用进油节流调速的回路,而图11-1(b)、11-1(c)则是油缸两个方向的运动都采用进油节流调速的回路,图11-1(c)两个方向的速度可分别调节。图11-1所示进油节流调速回路不能用于负性载荷的场合。
11, the speed control loop 1 into the throttling speed control circuit (1): Figure 11-1 shows the circuit installed in the throttle into the throttle to throttle speed. Pump pressure set by the relief valve. Changing the throttle opening can change the flow through the throttle to achieve a change in the cylinder (oil motor) speed. Figure 11-1 (a) shows the circuit in which oil-in-place throttling is performed due to the movement of the cylinder in one direction, and the movement in both directions of the cylinder is used in Figure 11-1 (b) and 11-1 (c) Oil throttling speed control circuit, Figure 11-1 (c) the speed of the two directions can be adjusted separately. Figure 11-1 shows the throttle into the throttle circuit can not be used for negative load situations.