CN203174562U - Protective device for hydraulic electric gate - Google Patents
Protective device for hydraulic electric gate Download PDFInfo
- Publication number
- CN203174562U CN203174562U CN 201220576780 CN201220576780U CN203174562U CN 203174562 U CN203174562 U CN 203174562U CN 201220576780 CN201220576780 CN 201220576780 CN 201220576780 U CN201220576780 U CN 201220576780U CN 203174562 U CN203174562 U CN 203174562U
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- gate
- electric gate
- electric
- current
- detection circuit
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Abstract
The utility model relates to a protective device for a hydraulic electric gate, which belongs to the control field of water conservancy devices. The technical scheme is that the protective device for a hydraulic electric gate comprises an operation power supply, an electric gate (1) and a gate control box (2); the gate control box comprises a gate controller (3) and a current detection circuit (4); the current detection circuit detects the operation current of an electric gate motor, and provides a current signal to the gate controller, and the gate controller controls the operation of the electric gate; the gate controller conducts processing on the current signal provided by the current detection circuit; the gate controller determines whether the protection function should be started or not by detecting and determining the load current change rate and the lasting time. The protective device for a hydraulic electric gate is advantageous in that the protective device can be used for hydraulic electric gates in any sizes and any types; whether the electric gate is operated normally can be accurately determined no matter the electric gate rises or declines, and the electric gate can be protected; device can be prevented from being damaged when the electric gate operates abnormally, and thereby maintenance amount can be reduced, and operation reliability of the electric gate can be substantially increased.
Description
Technical field
The utility model relates to a kind of protective device of water conservancy electric gate valve, belongs to water conservancy equipment control field.
Background technology
At present, in the water conservancy industry, the overload of electric gate valve adopts dual mode usually, loading measurement and motor overload protection, and when the load of the electric current of electric gate valve motor or electric gate valve wire rope surpasses setting value, the protection mechanism action.Reason owing to the electric gate valve own wt; the load of electric gate valve motor is different when rising with decline; load when two kinds of protected modes all can not rise or descend electric gate valve is distinguished; thereby can't realize the accurate protection when electric gate valve transshipped; such as being blocked by slide rail in the running; or the device damage that may cause when being blocked by the object of being brought such as timber, perplex administrative department for a long time.
The utility model content
The utility model purpose provides a kind of protective device of water conservancy electric gate valve, realizes no matter how many gates conducts oneself with dignity, and no matter rises or descends, and can realize the accurate protection to gate when fault, solves the problems referred to above that exist in the background technology.
The technical solution of the utility model is:
A kind of protective device of water conservancy electric gate valve comprises operation power supply, electric gate valve and gate control cabinet; The gate control cabinet comprises gate controller and current detection circuit, the input of current detection circuit connects electric gate valve and operation power supply, the output of current detection circuit connects gate controller, current detection circuit detects the running current of electric gate valve motor, provide current signal to gate controller, the operation of gate controller control electric gate valve; Gate controller is handled the current signal that current detection circuit provides, and gate controller determines whether to start defencive function by detecting and judge size and the duration of load current rate of change.
Electric gate valve and current detection circuit are the technique known contents.
The utility model course of work:
1. electric gate valve is controlled by the gate control cabinet, and the gate control cabinet connects operation power supply and electric gate valve, includes gate controller and current detection circuit in the gate control cabinet; The operation of gate controller control electric gate valve, current detection circuit detects the running current of electric gate valve motor, provides current signal to gate controller;
2. gate controller is handled the current signal that current detection circuit provides, and gate controller determines whether to start defencive function by detecting and judge size and the duration of load current rate of change;
3. the load current rate of change when electric gate valve surpasses predetermined numerical value, and continues to surpass the scheduled time, and gate controller stops the work of electric gate valve automatically, realizes accurately protection.
Described gate controller is at first judged the current signal that current detection circuit provides, if starting current and normal running current, defencive function can not move in both cases.
Main points of the present utility model are: the size of defencive function and running current is irrelevant, only when changing, load current works, namely have only the load current rate of change to surpass predetermined value and lasting above the scheduled time, defencive function just can work, and therefore no matter gate rises still to descend can both be realized accurate protection; Because only consider the load current rate of change of electric gate valve operation, and do not consider the size of electric current itself, therefore defencive function of the present utility model is applicable to big or small arbitrarily electric gate valve.
Protection philosophy:
Electric gate valve generally adopts AC asynchronous motor, and the starting current in short-term of AC asynchronous motor about 7 times of rated current normally, and electric gate valve is when normally moving, because the own wt of electric gate valve, running current difference when electric gate valve rises and descends is very big, what therefore, the utility model gate controller detected is not the size of electric current; When electric gate valve normally moved, because load is constant, the gate hoist electric current of electric gate valve was a stationary value that rate of change is very little, and gate controller is judged starting current and normal running current, and defencive function can not move in both cases.When the electric gate valve abnormal running, as have object such as trees under floating to stop under Ka Zha, gate inclination, the single-ended disconnected rope of two suspension centre, the lock, during situation such as protection switch is malfunctioning up and down, because the unexpected variation of gate hoist load can cause the unexpected variation of electric gate valve motor current; Defencive function only works when load current changes, and namely has only the load current rate of change to surpass predetermined value and continue and surpasses the scheduled time, and defencive function just can work, and therefore can realize accurate protection.No matter electric gate valve rises still descends, and the size of running current (electric current is big when rising owing to electric gate valve deadweight reason, and electric current is little during decline) is not the factor of the utility model protection, does not therefore consider the maximum value of electric current or load.
Gate controller of the present utility model can be identified starting current automatically, avoids the defencive function misoperation, and original gate hoist operating function is had no effect.
The beneficial effects of the utility model: use the utility model can make electric gate valve move reliable more, safety; The utility model can be used for the water conservancy electric gate valve of any size, any type; no matter electric gate valve rises still to descend can be judged accurately whether the electric gate valve operation is normal; the reliably protecting electric gate valve; device damage when preventing the electric gate valve operation exception; thereby the reduction maintenance, the reliability when improving the electric gate valve operation greatly.
Description of drawings
Among the figure: electric gate valve 1, gate control cabinet 2, gate controller 3, current detection circuit 4.
The specific embodiment
Below in conjunction with accompanying drawing, be described further by the utility model of embodiment.
A kind of protective device of water conservancy electric gate valve comprises operation power supply, electric gate valve 1 and gate control cabinet 2; The gate control cabinet comprises gate controller 3 and current detection circuit 4, the input of current detection circuit connects electric gate valve and operation power supply, the output of current detection circuit connects gate controller, current detection circuit detects the running current of electric gate valve motor, provide current signal to gate controller, the operation of gate controller control electric gate valve; Gate controller is handled the current signal that current detection circuit provides, and gate controller determines whether to start defencive function by detecting and judge size and the duration of load current rate of change.
The course of work:
1. electric gate valve is controlled by the gate control cabinet, and the gate control cabinet connects the operation power supply, includes gate controller and current detection circuit in the gate control cabinet; The operation of gate controller control electric gate valve, current detection circuit detects the running current of electric gate valve motor, provides current signal to gate controller;
2. gate controller is handled the current signal that current detection circuit provides, and gate controller determines whether to start defencive function by detecting and judge size and the duration of load current rate of change;
3. the load current rate of change when electric gate valve surpasses predetermined numerical value, and continues to surpass the scheduled time, and gate controller stops the work of electric gate valve automatically, realizes accurately protection.
Described gate controller is at first judged the current signal that current detection circuit provides, if starting current and normal running current, defencive function can not move in both cases.
Claims (1)
1. the protective device of a water conservancy electric gate valve is characterized in that comprising operation power supply, electric gate valve (1) and gate control cabinet (2); The gate control cabinet comprises gate controller (3) and current detection circuit (4), and the input of current detection circuit connects electric gate valve and operation power supply, and the output of current detection circuit connects gate controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220576780 CN203174562U (en) | 2012-11-05 | 2012-11-05 | Protective device for hydraulic electric gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220576780 CN203174562U (en) | 2012-11-05 | 2012-11-05 | Protective device for hydraulic electric gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203174562U true CN203174562U (en) | 2013-09-04 |
Family
ID=49071287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220576780 Expired - Fee Related CN203174562U (en) | 2012-11-05 | 2012-11-05 | Protective device for hydraulic electric gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203174562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972963A (en) * | 2017-12-13 | 2019-07-05 | 三久建材工业股份有限公司 | Water dam door-plate clamps control device |
| CN110825012A (en) * | 2019-10-31 | 2020-02-21 | 桂子荣 | Protection method for gate control device |
-
2012
- 2012-11-05 CN CN 201220576780 patent/CN203174562U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972963A (en) * | 2017-12-13 | 2019-07-05 | 三久建材工业股份有限公司 | Water dam door-plate clamps control device |
| CN109972963B (en) * | 2017-12-13 | 2020-12-08 | 三久建材工业股份有限公司 | Waterproof gate door plant clamping control device |
| CN110825012A (en) * | 2019-10-31 | 2020-02-21 | 桂子荣 | Protection method for gate control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20161105 |