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金沙国际登陆 > 技术文章 > 电动实行器的内部结构与功能

电动实行器的内部结构与功能

2018-11-07

电动实行器的内部结构与功能

The function of electric actuator internal structure

电动实行器红外线设定
Infrared setting of electric actuator
通过密封的指示窗,可对实行器进行全部设定和诊断。无需在现场打开电气箱盖而暴露内部的控制电路。设定器与窗口的有效对话距离为0.75米。
The actuator can be set and diagnosed completely through the sealed indicator window. It is not necessary to open the electrical box cover in the field to expose the internal control circuit. The effective dialogue distance between the setter and the window is 0.75 meters.

 

电动实行器手动操作
Manual operation of electric actuator
在电源故障时可通过低速锁扣式手动/自动离合器直接驱动手轮(或较大型号上使用独立齿轮传动手轮),对实行器进行开关操作。
When a power failure occurs, the hand wheel can be driven directly via a slow-locking manual/automatic clutch (or a separate gear-driven hand wheel on larger models) to switch actuators.
如果切换杆在自动位置,电动驱动为有效驱动,而在手动位置时,则手动驱动为有效,如有紧急情况可将切换杆压下“手动”位置,避免故障发生。
If the switching lever is in the automatic position, the electric drive is effective, while in the manual position, the manual drive is effective, and if there is an emergency, the switch lever can be put down by "manual" position to avoid the failure.
手动操作具有空程“锤击”效果,有利于轻松地操作阀门。
The manual operation has an empty "hammer" effect, which is easy to operate the valve.

 

电动实行器电机及驱动
Electric actuator motor and drive
电机轴与蜗杆是相互独立的,以便于快速更换。蜗轮、蜗杆单独浸泡在润滑油中运行,适合了大的环境温差。低惯性、高力矩电机使得电机启动后可迅速达到峰值力矩,而非励磁时几乎没有超限运动。线圈内有的温度传感器,它不受周围环境温度的影响,可以使电机处于合适的热容量中。
 The motor shaft and worm are independent of each other for quick replacement. The worm gear and worm are immersed in the lubricating oil and is suitable for the maximum ambient temperature difference. Low-inertia, high-torque motor allows the peak torque to be reached quickly after the motor is startup, and there is almost no overrun motion when it is not excited. The coil has an accurate temperature sensor, which is not affected by the ambient temperature and can keep the motor in optimum heat capacity.

 

电动实行器电机及驱动
Electric actuator motor and drive
 电机轴与蜗杆是相互独立的,以便于快速更换。蜗轮、蜗杆单独浸泡在润滑油中运行,适合了大的环境温差。低惯性、高力矩电机使得电机启动后可迅速达到峰值力矩,而非励磁时几乎没有超限运动。线圈内有的温度传感器,它不受周围环境温度的影响,可以使电机处于合适的热容量中。
 The motor shaft and worm are independent of each other for quick replacement. The worm gear and worm are immersed in the lubricating oil and is suitable for the maximum ambient temperature difference. Low-inertia, high-torque motor allows the peak torque to be reached quickly after the motor is startup, and there is almost no overrun motion when it is not excited. The coil has an accurate temperature sensor, which is not affected by the ambient temperature and can keep the motor in optimum heat capacity.

 

推力座
Thrust seat
IQ35以下型号装有‘A’型轴套、可润滑及可拆卸式推力型底座,可在不改变阀位的情况卸下实行器。IQ40以上实行器的推力型底座与外壳为一体化组装。
The models below IQ35 are equipped with 'A' bushing, lubricable and detachable thrust type base, and the actuator can be removed without changing the valve position. The thrust type base and shell of the model above IQ40 actuators are integrally assembled.
简单的、可拆卸的驱动轴套可按照阀杆进行加工,以便与阀门连接。
Simple, removable drive bushings can be machined to the valve stem for easier connection to the valve.

 

阀位控制
Valve position control
霍尔效应脉冲计数编码系统可地测量和控制实行器的行程,而不采用开关和齿轮计数定位,提高了位置精度(可选配光电位置编码器)。
 Hall effect pulse count coding system can accurately measure and control the stroke of the actuator instead of use switch and gear count positioning, which improves the position accuracy ( optional optoelectronic absolute position encoder).

 

电动实行器就地控制
Local control of electric actuator
 现场控制开关和锁扣式现场/停止/远程选择器为无贯通轴的磁性开关,通过作用实行器的内部磁簧进行控制,保证了实行器的密封防潮要求。
The on-site control switch and lock-type field/stop/remote selector are magnetic switches without through-shafts. They are controlled by acting on the internal magnetic reeds of the actuator to ensure that the actuator is sealed against moisture.

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