CN212297841U - Straight-stroke electric actuating mechanism with adjustable control signal and output stroke - Google Patents
Straight-stroke electric actuating mechanism with adjustable control signal and output stroke Download PDFInfo
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- CN212297841U CN212297841U CN202020100791.6U CN202020100791U CN212297841U CN 212297841 U CN212297841 U CN 212297841U CN 202020100791 U CN202020100791 U CN 202020100791U CN 212297841 U CN212297841 U CN 212297841U
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Abstract
The utility model provides a control signal and straight stroke electric actuator of output stroke adjustable, which comprises a circuit board, stroke feedback device, including a motor, an end cap, a controller, and a cover plate, reduction gear group, limit switch, torque spring, the output shaft etc, the characterized by circuit board can be connected with the computer, write in and save at the circuit board with the relation of control signal and output stroke by the computer, when electric actuator receives control signal, convert control signal to output signal by the circuit board, and control motor begins work, the extension that the motor passes through reduction gear group control output shaft and shortens, stroke feedback device feeds back the position of output shaft to the circuit board, when feedback device's signal and output signal are unanimous, circuit board control motor stop work, the executor reachs the required position. The utility model provides an electric actuator can be accurate adjusting valve's aperture (the one of output stroke promptly), and same control signal can correspond different valve apertures (the one of output stroke promptly), carries out the accurate regulation according to the demand, reaches the result of anticipated needs.
Description
Technical Field
The utility model relates to valve switching controlling means, a control signal and output stroke adjustable straight stroke electric actuator specifically say so.
Background
The executing mechanism is also called as an executor, is a common electromechanical integrated device in the field of automatic control, and is mainly used for automatically operating a valve device, controlling the opening and closing and adjusting of the valve device, and replacing manual operation, thereby reducing the personnel cost and the danger coefficient of operation.
The control signals and the output stroke of the conventional straight stroke actuators are fixed and nonadjustable, that is, each control signal only corresponds to a fixed output value (as shown in fig. 1) singly, and if the opening degree of a valve (i.e., one type of the output stroke) needs to be accurately adjusted, such an actuator cannot meet the production requirement.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a control signal and output stroke adjustable straight stroke electric actuator.
The utility model discloses a following technical scheme solve the problem, a control signal and output stroke adjustable straight stroke electric actuator, which comprises a circuit board, stroke feedback device, including a motor, an end cap, a controller, and a cover plate, speed reduction gear group, limit switch, torque spring, output shaft etc, characterized by circuit board can be connected with the computer, write in the relation of control signal and output stroke and preserve at the circuit board by the computer, when electric actuator received control signal, convert control signal to output signal by the circuit board, and control motor begins work, the motor passes through the extension of reduction gear group control output shaft and shortens, stroke feedback device feeds back the position of output shaft to the circuit board, when feedback device's signal and output signal are unanimous, circuit board control motor stop work, the executor reachs the required position.
Preferably, several set points are taken from the continuous control signal, each set point can be arbitrarily corresponding to an output stroke, the set points are connected by a straight line or a smooth curve, that is, the control signal written and stored in the circuit board is corresponding to the output stroke, as shown in fig. 2.
Compare in current electric actuator, the utility model provides an electric actuator can be accurate adjusting valve's aperture (the one of output stroke promptly), and the same control signal can correspond different valve apertures (the one of output stroke promptly), carries out the accurate regulation according to the demand, reaches the result of anticipated needs.
Drawings
Fig. 1 shows the relationship between control signals and output strokes of a conventional linear electric actuator, where one control signal corresponds to one valve opening (i.e., one type of output stroke).
Fig. 2 is the relationship between the control signal and the output stroke of the linear electric actuator of the present invention, a control signal can correspond to any one of the valve openings (i.e. one of the output strokes), curve 1 is the present invention, and curve 2 is another example of the present invention, which can be the command sent by the same actuator, and are independent of each other.
Fig. 3 is a schematic structural view of the linear electric actuator of the present invention.
Part names in fig. 3: 1. the circuit board 2, the stroke feedback device 3, the motor 4, the reduction gear set 5, the limit switch 6, the torque spring 7 and the output shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 3, a straight-stroke electric actuator with adjustable control signal and output stroke comprises a circuit board 1, a stroke feedback device 2, a motor 3, a reduction gear set 4, a limit switch 5, a torque spring 6, an output shaft 7 and the like, wherein the circuit board 1 is connected with the stroke feedback device 2, the stroke feedback device 2 is connected with the output shaft 7, the circuit board 1 is connected with a computer, the computer writes and stores the relation between the control signal and the output stroke in the circuit board 1, when the electric actuator receives the control signal, the circuit board 1 converts the control signal into the output signal and controls the motor 3 to start working, the motor 3 controls the extension and the shortening of the output shaft 7 through the reduction gear set 4, the stroke feedback device 2 feeds back the position of the output shaft 7 to the circuit board 1, when the signal of the stroke feedback device 2 is consistent with the output signal, the circuit board 1 controls the motor 3 to stop, the actuator reaches the desired position. Several setting points are taken from the continuous control signal, each setting point can be arbitrarily corresponded to an output stroke, the setting points are connected by straight lines or smooth curves, namely the corresponding relation between the control signal and the output stroke written and stored in the circuit board.
Finally, it is noted that the above examples are only intended to illustrate the technical solutions of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (1)
1. A straight-stroke electric actuator with adjustable control signal and output stroke is composed of circuit board, stroke feedback unit, motor, speed-reducing gear set, limit switch, torque spring and output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020100791.6U CN212297841U (en) | 2020-01-14 | 2020-01-14 | Straight-stroke electric actuating mechanism with adjustable control signal and output stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020100791.6U CN212297841U (en) | 2020-01-14 | 2020-01-14 | Straight-stroke electric actuating mechanism with adjustable control signal and output stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212297841U true CN212297841U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020100791.6U Active CN212297841U (en) | 2020-01-14 | 2020-01-14 | Straight-stroke electric actuating mechanism with adjustable control signal and output stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212297841U (en) |
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2020
- 2020-01-14 CN CN202020100791.6U patent/CN212297841U/en active Active
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