Electric linear motion valve actuator

Abstract

The invention discloses an electric linear motion valve actuator, and relates to the field of linear motion valve control. The electric linear motion valve actuator comprises a valve body connecting seat, a guide mechanism, a valve element connecting piece, a motor and an actuating mechanism, wherein the guide mechanism, the valve body connecting seat and a valve body are fixedly connected into awhole in sequence, a support top plate is fixedly arranged on the top of the guide mechanism, a movable sliding plate which can move up and down along the guide mechanism penetrates through the top ofthe guide mechanism, the movable sliding plate is fixedly connected with a valve element of the valve body by virtue of the valve element connecting piece, the upper end of the actuating mechanism ismovably connected with the support top plate, the bottom end of the actuating mechanism is movably connected with the movable sliding plate, and the actuating mechanism is connected with the motor and is driven to horizontally move from left to right by the motor so as to drive the movable sliding plate to vertically move up and down, so that the opening and closing operation of the valve body isrealized. The electric linear motion valve actuator has the advantages of high feeding speed, high stability and low maintenance cost, and the control over the opening and closing of a linear motionvalve and the multipoint control are realized by adopting an electric signal.

Description

technical field [0001] The invention relates to the control field of straight-stroke valves, in particular to an electric straight-stroke valve actuator. Background technique [0002] At present, in the use of various pipelines in our country, there are three types of actuators, namely air pressure, hydraulic pressure and electric type. With the continuous improvement of flexibility requirements in automation equipment, actuators need to be controlled by multi-point positioning The precise control or synchronous tracking of the operating speed of the actuator is impossible to achieve with pneumatic or hydraulic control, and electric actuators can easily achieve such control. However, the existing electric actuators have complex structures, high failure rate, slow execution speed, and high manufacturing and maintenance costs. Contents of the invention [0003] In order to solve the above existing technical problems, the present invention provides an electric straight-strok...

AI Technical Summary

Problems solved by technology

[0002] At present, in the use of various pipelines in our country, there are three types of actuators, namely air pressure, hydraulic pressure and electric type. With the continuous improvement of flexibility requirements in automation equipment, actuators need to be controlled by multi-point positioning Accurate control or synchronous tracking of the operating speed of the actuator, which cannot be achieved with pneumatic or hydraulic control, and electric actuators can easily achieve such control

However, the existing electric actuator has complex structure, high failure rate, slow execution speed, high cost and high maintenance cost

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