| 液压式启闭机 |
| 添加时间：2020/6/1 15:02:51 浏览次数： |
| 液压式启闭机 Hydraulic hoist 电动机、油泵、液压控制阀和液压缸可装在同一轴线上，也可控需要装置在不同轴线上，只需接通电动机的控制电源，即可使活塞杆往复运动。液压控制阀组合是由溢流阀、调速阀、液压单向阀等阀组组成，可根据启闭机的工作待点设计不同油路形成的组合阀满足其工况要求。活塞杆的伸缩由电动机正反旋转控制，具有动作灵活，行程控制准确，过载保护等性能。当运行受阻时，油路中压力增高到调定的限额，溢流阀迅速而准确地溢流，实行过载保护，电动运转在额定值内不会烧毁。启闭机油路集成块中设计了自锁机构，当启闭机运行到调定行程终端时，电机自动停止转动，活塞杆则锁定在此位置上，处于保压状态。 The motor, oil pump, hydraulic control valve and hydraulic cylinder can be installed on the same axis, and they can also be controlled on different axes. The piston rod can move back and forth only by connecting the control power supply of the motor. The combination of hydraulic control valve is composed of relief valve, speed control valve, hydraulic check valve and other valve groups. The combination valve formed by different oil circuits can be designed according to the working waiting point of the hoist to meet its working conditions. The expansion and contraction of the piston rod are controlled by the positive and negative rotation of the motor, which has the features of flexible action, accurate stroke control, overload protection, etc. When the operation is blocked, the pressure in the oil circuit increases to the set limit, the overflow valve overflows quickly and accurately, and the overload protection is implemented. The electric operation will not burn down within the rated value. The self-locking mechanism is designed in the integrated block of the hoist oil circuit. When the hoist runs to the end of the set stroke, the motor automatically stops rotating, and the piston rod is locked in this position, in a pressure maintaining state. |
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