CN221006211U - Output position detection mechanism of straight-travel electric actuator - Google Patents
Output position detection mechanism of straight-travel electric actuator Download PDFInfo
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- CN221006211U CN221006211U CN202323177011.0U CN202323177011U CN221006211U CN 221006211 U CN221006211 U CN 221006211U CN 202323177011 U CN202323177011 U CN 202323177011U CN 221006211 U CN221006211 U CN 221006211U
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- electric actuator
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The application relates to the technical field of electric actuators, and particularly discloses an output position detection mechanism of a straight-travel electric actuator. When the valve is used, the coil is electrified to generate a magnetic field, the signal piece absorbs or disperses the magnetic field when the signal piece moves along with the output shaft, so that the parameter of the coil is influenced, the position of the signal piece can be accurately judged by monitoring the parameter of the coil, the opening position of the valve can be calculated, and the valve is higher in detection precision and convenient to use.
Description
Technical Field
The application relates to the technical field of electric actuators, in particular to an output position detection mechanism of a straight-travel electric actuator.
Background
The electric actuator is generally divided into an angular travel electric actuator, a straight travel electric actuator, a multi-rotation electric actuator and the like, and is widely applied to the valve industry and used for controlling the opening and closing of a valve.
In the related art, chinese patent with the patent number of CN201656675U discloses an intelligent straight-travel electric actuator, which comprises a motor, a screw sleeve, a screw rod and an output shaft, wherein the motor drives the screw sleeve to rotate so as to drive the screw rod to reciprocate, and the screw rod drives the output shaft to reciprocate; the output shaft is connected with the lead screw through the connector, the connector is provided with a pointer, the connecting bracket is provided with an opening indication board, and the pointer indicates the opening of the current valve at the position on the opening indication board in real time.
In practical use, when the actuator is opened or closed, the opening or closing condition of the valve can be judged only by observing the position of the pointer on the opening indication board, and then the actuator is controlled to open the valve to a proper position, so that the operation is inconvenient.
Disclosure of Invention
In order to facilitate accurate control of the opening amount of a valve by an actuator, the application provides an output position detection mechanism of a straight-travel electric actuator, which can detect the displacement amount of an output shaft in real time.
The application provides a detection mechanism for the output position of a straight-travel electric actuator, which adopts the following technical scheme:
The utility model provides a straight stroke electric actuator output position detection mechanism, includes the signal spare that follows the output shaft and is used for detecting the detection component of signal spare displacement, detection component is right signal spare real time monitoring and with signal feedback to control system.
Through adopting above-mentioned technical scheme, set up the signal spare on the output shaft, at the normal during operation of executor, the signal spare can follow the output shaft and remove, and detection assembly monitors signal spare real time to can accurately judge the output of executor, thereby calculate the opening amount of valve, can reach the purpose of accurate control.
Optionally, the signal piece is set as a movable iron core, and the signal piece is fixed on the output shaft; the detection assembly comprises coils, the positions of the coils corresponding to the signal pieces are arranged on a shell of the actuator, and a plurality of groups of coils are distributed on a moving path of the signal pieces.
Through adopting above-mentioned technical scheme, set up the signal piece into movable iron core to set up the coil in one side of signal piece, when using, the signal piece follows the output shaft and removes, and the coil can be circular telegram when using produces the magnetic field, can absorb or disperse the magnetic field when the signal piece removes, thereby produces the influence to the voltage of coil, through the voltage condition that detects multiunit coil, alright judge the place of signal piece, and then calculate the opening condition of valve.
Optionally, the detection assembly comprises a detection plate fixed on the actuator housing, and the coil is injection molded in the detection plate.
By adopting the technical scheme, the coil is injection molded in the detection plate, so that the coil can be protected, and the coil is prevented from being damaged by external force; and, the detection plate can support and fix the coil.
Optionally, a chip for detecting the current change in the coil is arranged on the detection board.
By adopting the technical scheme, the chip is utilized to monitor the induction current in the coil in real time, so that the detection precision can be effectively improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The signal piece is arranged on the output shaft, and can move along with the output shaft when the actuator works normally, and the detection assembly monitors the signal piece in real time, so that the output quantity of the actuator can be accurately judged, the opening quantity of the valve is calculated, and the aim of accurate control can be achieved;
2. Through setting up the signal part into movable iron core to set up the coil in one side of signal part, when using, the signal part follows the output shaft and removes, and the coil can be circular telegram when using produces the magnetic field, can absorb or disperse the magnetic field when the signal part removes, thereby produces the influence to the voltage of coil, through the voltage condition that detects multiunit coil, alright judge the place of signal part, and then calculate the open condition of valve.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
Fig. 2 is a schematic diagram of an embodiment of the present application.
Reference numerals: 11. a housing; 12. an output shaft; 2. a signal member; 3. a detection assembly; 31. a detection plate; 32. a coil; 33. and a chip.
Detailed Description
The application is described in further detail below with reference to fig. 1-2.
The embodiment of the application discloses an output position detection mechanism of a straight-travel electric actuator, which comprises a signal piece 2 fixed on an output shaft 12 of the actuator and a detection component 3 for detecting the position of the signal piece 2, and the detection component 3 is used for detecting the position of the signal piece 2 and feeding back signals to a control system in real time when the straight-travel electric actuator is used, referring to fig. 1 and 2.
The signal element 2 is provided as a moving iron core, and the signal element 2 is fixed to a side wall of the output shaft 12. The detection assembly 3 comprises a detection plate 31 and a coil 32, wherein the detection plate 31 is a rectangular plate body, the detection plate 31 is fixed on the actuator shell 11 and is positioned on one side of the output shaft 12, and the signal piece 2 is positioned between the detection plate 31 and the output shaft 12; the coils 32 are injection-molded in the detection plate 31, and a plurality of groups of coils 32 are laid in the detection plate 31 corresponding to the inside of the path along which the signal member 2 moves. When the electric actuator operates, the output shaft 12 drives the signal element 2 to move, and when the signal element 2 moves, the signal element 2 can block the magnetic field generated by the absorption coil 32, so that the voltage of the coil 32 is affected, and the position of the signal element 2 can be judged according to the parameter change in the coil 32.
A chip 33 is mounted on the detection plate 31, the current in the coil 32 is monitored by the chip 33, and a signal is fed back to the control system, which can calculate the opening of the valve at this time according to the signal.
The embodiment of the application discloses an implementation principle of an output position detection mechanism of a straight-travel electric actuator, which comprises the following steps: referring to fig. 1 and 2, during normal operation, a magnetic field is generated by energizing the coil 32, and when the signal member 2 moves up and down along with the output shaft 12, the signal member 2 absorbs or disperses the magnetic field generated by the coil 32, so that parameters of the coil 32 are changed, and the chip 33 can judge the position of the signal member 2 by monitoring the parameter change in the coil 32, so that the opening position of the valve is calculated, the detection precision is higher, and the valve is convenient to use.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (4)
1. The utility model provides a straight stroke electric actuator output position detection mechanism which characterized in that: the device comprises a signal piece (2) which moves along with an output shaft (12) and a detection component (3) which is used for detecting the displacement of the signal piece (2), wherein the detection component (3) monitors the signal piece (2) in real time and feeds back a signal to a control system.
2. The output position detection mechanism of a linear travel electric actuator of claim 1, wherein: the signal piece (2) is arranged as a movable iron core, and the signal piece (2) is fixed on the output shaft (12); the detection assembly (3) comprises coils (32), the positions of the coils (32) corresponding to the signal pieces (2) are arranged on a shell (11) of the actuator, and a plurality of groups of coils (32) are distributed on the moving path of the signal pieces (2).
3. The output position detection mechanism of a linear travel electric actuator of claim 2, wherein: the detection assembly (3) comprises a detection plate (31) fixed on the actuator shell (11), and the coil (32) is injection molded in the detection plate (31).
4. A straight travel electric actuator output position detection mechanism according to claim 3, wherein: a chip (33) for detecting the current change in the coil (32) is arranged on the detection plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323177011.0U CN221006211U (en) | 2023-11-23 | 2023-11-23 | Output position detection mechanism of straight-travel electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323177011.0U CN221006211U (en) | 2023-11-23 | 2023-11-23 | Output position detection mechanism of straight-travel electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221006211U true CN221006211U (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323177011.0U Active CN221006211U (en) | 2023-11-23 | 2023-11-23 | Output position detection mechanism of straight-travel electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221006211U (en) |
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2023
- 2023-11-23 CN CN202323177011.0U patent/CN221006211U/en active Active
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