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在某一台Z3040摇臂钻床的主轴变速中有8级速度档不能正常运转,见图1(圆圈所标即为故障档)。我们采用转速图逆向追踪的方法,迅速查明了故障的原因。在此作一简要介绍。一、故障分析 Z3040摇臂钻床的液压预选变速机构是用来控制主轴变速的。变速油缸均布置在滑移齿轮轴的上端,见图2。Z3040摇臂钻床主传动系统见图3。活塞在传动轴的中心孔内,通过拨销推动滑移齿轮移动。各滑移齿轮要实现不同的变速,则决定于各油缸油路的接通情况,又决定于预选阀所选定的主轴转速。预选变
In a Z3040 radial drilling machine spindle speed change in eight-speed gear can not be normal operation, shown in Figure 1 (marked by the circle is the fault file). We used reverse rotation speed graph method, quickly identified the cause of the malfunction. Make a brief introduction here. First, the failure analysis Z3040 radial drilling machine hydraulic preselected speed change mechanism is used to control the spindle speed. Variable speed fuel tanks are arranged in the upper end of the slip gear shaft, shown in Figure 2. Z3040 radial drilling main drive system shown in Figure 3. Piston in the center hole of the transmission shaft, sliding gear by pushing the pin to move. Each sliding gear to achieve different speed, then decided on the oil tank connected to the situation, but also decided by the preselected valve selected spindle speed. Pre-selection change