Double-scotch-yoke double-acting pneumatic actuator
A pneumatic actuator, double-acting technology, used in engine components, valve operation/release devices, valve details, etc., can solve the problems of high space requirements for installing actuators and high cost of purchasing actuators, achieving simple structure and reducing parts. , the effect of increasing the output torque
Pending Publication Date: 2017-12-08
无锡福斯拓科科技有限公司
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Problems solved by technology
[0002] The traditional fork-type pneumatic actuator has only one fork, and the valve opening and closing torque output by the actuator is relatively small. When selecting a pneumatic actuator, only an actuator with a larger volume and a larger output torque can be selected to match. Valves, which require more space to install the actuator and cost more to purchase the actuator
Method used
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[0019] The following describes specific embodiments of the present invention.
[0020] Such as Figure 1 to Figure 3 As shown, the double-acting double-acting pneumatic actuator includes a cylinder 1, which is sealed and connected to an end cover 5 at both ends of the cylinder 1. The shift fork 3 is arranged inside the cylinder 1, and the shaft center of the shift fork 3 is connected to drive through a spring pin 7. The shaft 2 defines a pair of opening grooves 301 along the outer circumference of the shift fork 3, and the pair of opening grooves 301 are symmetrically opened with the shaft center of the shift fork 3 as the center. In the opening groove 301, one end of the piston 6 protruding into the cylinder 1 abuts through the drive pin 4, the other end of the piston 6 abuts against one end of the limit bolt 8, the other end of the limit bolt 8 extends out of the end cover 5 and Nut thread connection. The pistons 6 are arranged symmetrically with the fork 3 as the center. Th...
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The invention relates to a double-scotch-yoke double-acting pneumatic actuator. The double-scotch-yoke double-acting pneumatic actuator comprises an air cylinder, wherein end covers are in sealed connection with two ends of the air cylinder, a scotch yoke is arranged in the air cylinder, a drive shaft is connected to the axis of the scotch yoke through a spring pin, a pair of open grooves are formed in the periphery of the scotch yoke, inside of each open groove is abutted with one end, extending into the air cylinder, of a piston through a drive pin, the other end of each piston is abutted with one end of a limit bolt, and the other end of each limit bolt extends out of the corresponding end cover and is in threaded connection with a nut. The double-scotch-yoke double-acting pneumatic actuator is simple in structure and convenient to use, reciprocation of the two pistons can be driven simultaneously by one scotch yoke, output torque is increased, the scotch yoke is connected with the pistons through the drive pins, so that the problem that slider structures are required to be added to connect the scotch yoke and the drive pins at present is solved, most parts can be omitted, drive efficiency is increased, and production cost and assembly cost are saved.
Description
Technical field [0001] The invention relates to the field of pneumatic actuators, in particular to a double-shift double-acting pneumatic actuator. Background technique [0002] The traditional fork-type pneumatic actuator has only one fork, and the torque of opening and closing the valve output by the actuator is relatively small. When selecting a pneumatic actuator, only a larger volume and larger output torque can be selected to match Valves require higher space requirements for the installation of actuators and higher costs for purchasing actuators. Summary of the invention [0003] In view of the above-mentioned existing problems, the applicant has conducted research and improvement, and provided a double-shift double-acting pneumatic actuator, which can increase the output and opening torque and closing torque of the actuator, which is closer to the torque of the rotary valve. Advantages of saving installation space. [0004] The technical scheme adopted by the present inven...
Claims
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Login to View More IPC IPC(8): F16K31/163F16K31/528
CPCF16K31/1635F16K31/528
Inventor 蔡佳
Owner 无锡福斯拓科科技有限公司