Novel pneumatic valve positioning device
A technology for positioning devices and pneumatic valves, applied in valve devices, valve operation/release devices, valve details, etc., can solve the problems of cumbersome selection, troublesome manufacturing, troublesome installation, etc., and achieve simple connection, long service life and excellent structure simple effect
Inactive Publication Date: 2019-10-11
李青青
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Problems solved by technology
In recent years, the classification of quarter-turn and straight-stroke valves is determined according to the movement trajectory of the valve core. Different valves must use the corresponding positioner of the actuator, which is cumbersome and troublesome to choose.
In manual operation, additional equipment and power supply must be added, which is troublesome to install
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Embodiment Construction
[0008] A new type of pneumatic valve positioning device, the positioning device includes a stroke adjustment part 1, a connecting part 2, an adjustment knob 3, a torque motor 4, a junction box 5, an upper cover 6, an indicator 7, a cam 8, a feedback shaft 9, Pilot valve 10, positioning device main body 11, exhaust hole cover 12 and feedback rod 13, the stroke adjustment member 1 is arranged in the positioning device main body 11, and the four corners of the upper cover 6 and the positioning device main body 11 are provided with screw holes The adjustment knob 3 is connected with the torque motor 4 through screw fixing, the junction box 5 is arranged on the main body 11 of the positioning device, the connecting piece 2 is arranged in the main body 11 of the positioning device, and the stroke adjustment part 1 is connected to the pilot valve 10, the indicator 7 is connected to the cam 8, the cam 8 is connected to the feedback shaft 9, the main body 11 of the positioning device is...
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The invention relates to a novel pneumatic valve positioning device. The novel pneumatic valve positioning device comprises a stroke adjusting piece, a connecting piece, an adjusting knob, a torque motor, a junction box, an upper cover, an indicator, a cam, a feedback shaft, a pilot valve, a positioning device main body, an exhaust hole cover and a feedback rod, wherein the stroke adjusting pieceis arranged in the positioning device main body, the upper cover and four corners of the positioning device main body are provided with screw holes and are fixed through screws, the adjusting knob isconnected with the torque motor, the junction box is arranged on the positioning device main body, the connecting piece is arranged in the positioning device main body and is used for connecting the stroke adjusting piece with the pilot valve, the indicator is connected to the cam, the cam is connected to the feedback shaft, the positioning device main body is provided with an exhaust hole and theexhaust hole cover, and the feedback rod is arranged in the positioning device main body. The novel pneumatic valve positioning device has the advantages of simple structure, convenience in operation, simplicity in connection of the feedback rod, high reaction speed, accuracy in reaction, low production cost and long service life.
Description
technical field [0001] The invention relates to a valve auxiliary device, in particular to a novel pneumatic valve positioning device. Background technique [0002] As one of the main accessories of the pneumatic control valve, the valve positioner can improve the valve characteristics, improve the control accuracy, speed and increase the control flexibility. The digitization, communication, intelligence, and field bus support characteristics of intelligent valve positioners have brought profound changes to industrial automation production and represent the development direction of pneumatic actuator technology. In recent years, the classification of quarter-turn valves and straight-stroke valves is determined according to the movement trajectory of the valve core. Different valves must use the corresponding positioner of the actuator, which is cumbersome and troublesome to choose. In manual operation, additional equipment and power supply must be added, which is troublesom...
Claims
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IPC IPC(8): F16K37/00F16K31/12
CPCF16K31/12F16K37/00
Inventor 李青青
Owner 李青青