CN212208006U - Device for monitoring and controlling valve opening and closing by adopting current - Google Patents
Device for monitoring and controlling valve opening and closing by adopting current Download PDFInfo
- Publication number
- CN212208006U CN212208006U CN202021067124.9U CN202021067124U CN212208006U CN 212208006 U CN212208006 U CN 212208006U CN 202021067124 U CN202021067124 U CN 202021067124U CN 212208006 U CN212208006 U CN 212208006U
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- motor
- stopper
- valve
- control circuit
- main shaft
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Abstract
The utility model discloses an adopt device of current monitoring control flap switch, pay, main shaft gear, first stopper, second stopper, control circuit including motor, input gear, drive gear, motor, input gear, drive gear pay and main shaft gear drives the rotation in proper order, there is bellied dog the main shaft gear outside, first stopper and second stopper distribute on the movement track of dog, the dog is located between first stopper, the second stopper and can be touched by first stopper and second stopper and block, the motor is connected with control circuit, and whether control circuit can monitor the electric current size of motor and control motor work. The utility model discloses a set up the electric current scope of motor normal operating and the electric current overrun scope that the motor was locked up commentaries on classics in control circuit, through the state alright know valve of monitoring the motor on whether open or close, solved the problem that the travel switch component became invalid and arouse.
Description
Technical Field
The utility model belongs to the technical field of the valve, in particular to adopt device of current monitoring control valve switch.
Background
At present, the electric valve is mainly switched by a travel switch. The travel switch utilizes the collision of a mechanical motion part to enable a contact of the travel switch to act to realize the connection or disconnection of a control circuit, thereby achieving the aim of controlling the opening and closing of the valve. The stroke switch is used for limiting the position or stroke of the mechanical movement, and is used for automatically stopping or reversely moving the moving machine according to a certain position or stroke, reciprocating the moving machine and the like. However, when the valve is controlled by the travel switch, once the travel switch element fails, the valve cannot work normally.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that travel switch became invalid and lead to the valve can not normally work, the utility model provides an adopt device of current monitoring control valve switch.
The technical scheme of the utility model, as follows:
the utility model provides an adopt device of current monitoring control valve switch, includes that motor, input gear, drive gear pay, main shaft gear, first stopper, second stopper, control circuit, motor, input gear, drive gear pay and main shaft gear drive the rotation in proper order, there is bellied dog in the main shaft gear outside, first stopper and second stopper distribute on the movement track of dog, the dog is located between first stopper, the second stopper and can be touched by first stopper and second stopper and block, the motor is connected with control circuit, and control circuit can monitor the electric current size of motor and control whether the motor works.
As a further scheme, the control circuit is a single chip microcomputer.
As a further scheme, the position of the spindle gear stop block at the first limit block is a valve opening, and the position of the spindle gear stop block at the second limit block is a valve closing; or the position of the main shaft gear stop block at the first limiting block is a valve switch, and the position of the second limiting block is a valve switch.
As a further scheme, the current range of the normal operation of the motor is 20-35 milliamperes, and the current range of the motor during the locked-rotor is 135-150 milliamperes.
The utility model has the advantages that: the utility model discloses a set up the electric current scope of motor normal operating and the electric current overrun scope that the motor was locked up commentaries on classics in control circuit, through the state alright know valve of monitoring the motor on whether open or close, solved the problem that the travel switch component became invalid and arouse. Even if the control circuit breaks down, the control circuit part of the valve only needs to be replaced, and the whole valve does not need to be replaced.
Drawings
Fig. 1 is the schematic diagram of the device for controlling the valve switch by current monitoring.
Fig. 2 is the circuit connection schematic diagram of the utility model using the current monitoring control valve switch.
FIG. 3 is a flow chart of a method for controlling the opening and closing of a valve by current monitoring according to the present invention.
Detailed Description
The invention is described below with reference to the accompanying drawings, and the examples are only for explaining the invention, but not for limiting the scope of the invention.
Example 1:
as shown in fig. 1 and fig. 2, a device for controlling a valve switch by current monitoring comprises a motor 1, an input gear 2, a transmission gear pair 3, a main shaft gear 4, a first limiting block 5, a second limiting block 6 and a control circuit 7, wherein the motor 1 drives the input gear 2 to rotate, the input gear 2 sequentially drives the transmission gear pair 3 and the main shaft gear 4 to rotate, a raised stop block 8 is arranged on the outer side of the main shaft gear 4, the first limiting block 5 and the second limiting block 6 are distributed on the motion track of the stop block, and the stop block 8 is arranged between the first limiting block 5 and the second limiting block 6 and can touch the first limiting block 5 and the second limiting block 6. When the stop block 8 rotates to the first limit block 5, the valve is opened, and when the stop block rotates to the second limit block 6, the valve is closed; or the valve is closed when the stop block 8 rotates to the first limit block 5, and the valve is opened when the stop block rotates to the second limit block 6. The motor 1 is connected with the control circuit 7, and the control circuit 7 can monitor the current of the motor 1 and control whether the motor 1 works or not.
The valve is opened when the stop block 8 rotates to the first limiting block 5, and the valve is closed when the stop block rotates to the second limiting block 6, for example, the motor 1 drives the main shaft gear 4 through the gear pair 3 to rotate to a certain angle, and the first limiting block 5 can be touched, and the motor 1 can be locked when the main shaft gear 4 can not push the limiting block 5. At the moment, the current of the motor 1 is increased sharply due to the rotation blockage, the control circuit 7 monitors the overrun current of the motor 1, namely, the transmission is judged to rotate to a specified angle, the valve is opened, at the moment, the control circuit 7 stops driving the motor 1, and the valve is in an opening state. When closing the valve, dog 8 can touch second stopper 6, and control circuit 7 monitors the transfinite current of motor 1, judges promptly that the transmission has turned to appointed angle, and the valve is closed, and control circuit 7 stops driving motor 1 this moment, and the valve is in the closed condition.
Example 2:
as shown in fig. 1 and fig. 2, a device for controlling a valve switch by current monitoring comprises a motor 1, an input gear 2, a transmission gear pair 3, a main shaft gear 4, a first limiting block 5, a second limiting block 6 and a single chip microcomputer 7, wherein the motor 1 drives the input gear 2 to rotate, the input gear 2 sequentially drives the transmission gear pair 3 and the main shaft gear 4 to rotate, a raised stop block 8 is arranged on the outer side of the main shaft gear 4, the first limiting block 5 and the second limiting block 6 are distributed on the motion track of the stop block 8, and the stop block 8 is arranged between the first limiting block 5 and the second limiting block 6 and can touch the first limiting block 5 and the second limiting block 6. When the stop block 8 rotates to the first limiting block 5, the valve is opened, and when the stop block rotates to the second limiting block 6, the valve is closed; or the valve is closed when the stop block 8 rotates to the first limit block 5, and the valve is opened when the stop block rotates to the second limit block 6. The motor 1 is connected with the singlechip 7, and the singlechip 7 monitors the current of the motor and controls whether the motor works.
The valve is opened when the stop block 8 rotates to the first limiting block 5, and the valve is closed when the stop block rotates to the second limiting block 6, for example, the motor 1 drives the main shaft gear 4 through the gear pair 3 to rotate to a certain angle, and the first limiting block 5 can be touched, and the motor 1 can be locked when the main shaft gear 4 can not push the limiting block 5. At the moment, the current of the motor 1 is increased sharply due to the rotation blockage, the singlechip 7 monitors the overrun current of the motor 1, namely, the transmission is judged to rotate to a specified angle, the valve is opened, the singlechip 7 stops driving the motor 1, and the valve is in an opening state. When closing the valve, dog 8 can touch second stopper 6, and singlechip 7 monitors the transfinite electric current of motor 1, judges promptly that the transmission has turned to appointed angle, and the valve is closed, and singlechip 7 stops driving motor 1 this moment, and the valve is in the closed condition.
The utility model discloses an among the device of current monitoring control valve switch, the electric current scope of motor 1 normal operating is 135 when 20-35 milliamperes, motor 1 stalling is 135 and gives other 150 milliamperes.
The utility model discloses a device of current monitoring control valve switch carries out valve on-off control's method, including following step:
step 1: according to the working environment of the valve, the current range of normal operation of the motor and the overrun range of current surge when the motor is locked-up are input into the control circuit. The current range of the normal operation of the motor is 20-35 milliamperes, and the overrun range of the current surge during the motor stalling is 135-150 milliamperes.
Step 2: when the valve is opened, the control circuit drives the motor to rotate, the motor drives the input gear, the transmission gear pair and the main shaft gear to rotate in sequence, the main shaft gear moves clockwise, when the main shaft gear rotates to a certain angle, the stop block touches the first limiting block, the motor continues to rotate and cannot push the first limiting block, the motor is locked to rotate to cause current surge, the control circuit monitors that the current exceeds the limit, the control circuit stops driving the motor to rotate, and the valve is in an open state at the moment.
And step 3: when the valve is closed, the control circuit drives the motor to rotate, the motor drives the input gear, the transmission gear pair and the main shaft gear to rotate in sequence, the main shaft gear moves anticlockwise, when the main shaft gear rotates to a certain angle, the stop block touches the second limiting block, the motor continues to rotate and cannot push the second limiting block, the motor is locked to rotate to cause current surge, the control circuit monitors that the current exceeds the limit, the control circuit stops driving the motor to rotate, and the valve is in a closed state at the moment.
The present invention relates to a preferred mode of using current monitoring control valve switch device, and for those skilled in the art, the present invention does not depart from the present invention, and the improvement and decoration should be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides an adopt device of current monitoring control valve switch, includes that motor, input gear, drive gear pay, main shaft gear, first stopper, second stopper, control circuit, its characterized in that motor, input gear, drive gear pay and main shaft gear drive the rotation in proper order, there is bellied dog in the main shaft gear outside, first stopper and second stopper distribute on the movement track of dog, the dog is located between first stopper, the second stopper and can be touched by first stopper and second stopper and block, the motor is connected with control circuit, and whether control circuit can monitor the electric current size of motor and control motor work.
2. The apparatus of claim 1, wherein the control circuit is a single-chip microcomputer.
3. The device for controlling the opening and closing of the valve by monitoring the current according to claim 2, wherein the position of the spindle gear stop at the first limit block is the valve opening, and the position of the second limit block is the valve closing; or the position of the main shaft gear stop block at the first limiting block is a valve switch, and the position of the second limiting block is a valve switch.
4. The apparatus as claimed in claim 1, wherein the current range for normal operation of the motor is 20-35 ma, and the current range for motor stalling is 135-150 ma.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021067124.9U CN212208006U (en) | 2020-06-11 | 2020-06-11 | Device for monitoring and controlling valve opening and closing by adopting current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021067124.9U CN212208006U (en) | 2020-06-11 | 2020-06-11 | Device for monitoring and controlling valve opening and closing by adopting current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212208006U true CN212208006U (en) | 2020-12-22 |
Family
ID=73809076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021067124.9U Active CN212208006U (en) | 2020-06-11 | 2020-06-11 | Device for monitoring and controlling valve opening and closing by adopting current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212208006U (en) |
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2020
- 2020-06-11 CN CN202021067124.9U patent/CN212208006U/en active Active
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