CN202016818U - Coal mining winch overload alarm adopting current transformer - Google Patents
Coal mining winch overload alarm adopting current transformer Download PDFInfo
- Publication number
- CN202016818U CN202016818U CN2011201143663U CN201120114366U CN202016818U CN 202016818 U CN202016818 U CN 202016818U CN 2011201143663 U CN2011201143663 U CN 2011201143663U CN 201120114366 U CN201120114366 U CN 201120114366U CN 202016818 U CN202016818 U CN 202016818U
- Authority
- CN
- China
- Prior art keywords
- current transformer
- winch
- alarm
- circuit
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Electric Motors In General (AREA)
Abstract
The utility model provides a coal mining winch overload alarm adopting a current transformer, which can realize non-contact measurement, comprises a three-phase supply and a winch motor, and is characterized in that: the coal mining winch overload alarm adopting the current transformer also comprises an alarm circuit which alarms when the winch motor overloads, the alarm circuit comprises the current transformer, a computing circuit and an audible and visual alarm, the current transformer and one phase of the three-phase supply form mutual inductance, the output end of the current transformer is connected with the input end of the computing circuit, and the output end of the computing circuit is connected with and drive the audible and visual alarm to alarm. The coal mining winch overload alarm detects the current of the winch motor through the current transformer, so non-contact current measurement is realized, and not only is a measuring circuit simple, but also the measuring result is more accurate; and the coal mining winch overload alarm is provided with the computing circuit, a solid-state relay, a loudspeaker and a bulb which are matched with the current transformer, so the acousto-optic alarm is effectively realized.
Description
Technical field
The utility model relates to a kind of coalmine winch overload annunciator that adopts current transformer, in particular, relates in particular to a kind of coalmine winch overload annunciator of realizing the employing current transformer of noncontact measurement.
Background technology
Winch is a requisite power plant in the production process in colliery, for the winch on the small-size coal mine, so that the warning device of winch overload is not set, generally all is to inspect the power supply load by attendant's range estimation, with the safety that guarantees to produce.Since workman person can not be constantly the operational factor that stares at winch, this just may cause the running overload of winch, and then causes unnecessary industrial accident.
The patent No. is that 02214434.X, denomination of invention are the utility model patent of " a kind of coalmine winch overload is reported to the police and adorned device ", a kind of coalmine winch overload warning dress device is disclosed, but it is the electric current variation that directly detects the winch motor of flowing through, and then realization corresponding action, the method of this direct measurement, circuit complexity not only, manufacturing cost height, and detection architecture inaccuracy also.
Summary of the invention
The utility model has overcome the shortcoming of above-mentioned technical matters, and a kind of coalmine winch overload annunciator of realizing the employing current transformer of noncontact measurement is provided.
For achieving the above object, the utility model has adopted following technical scheme:
The coalmine winch overload annunciator of employing current transformer of the present utility model, comprise the winch motor that is used to provide the three phase mains of electric energy and is used to drive winch work, its special feature is: the warning circuit of realizing warning when also being included in the winch motor overload, this warning circuit comprises current transformer, arithmetical circuit and combined aural and visual alarm, in described current transformer and the three phase mains one forms mutual inductance mutually, the mouth of current transformer is connected with the input end of arithmetical circuit, and the mouth of arithmetical circuit is connected with combined aural and visual alarm and drives it and realizes reporting to the police.
The coalmine winch overload annunciator of employing current transformer of the present utility model, described acoustic-optic alarm comprise loud speaker, bulb and first solid-state relay that all is connected with the mouth of arithmetical circuit and second solid-state relay; Described first solid-state relay and second solid-state relay are in series with the loop at loud speaker and bulb place respectively.
The coalmine winch overload annunciator of employing current transformer of the present utility model, the arithmetical circuit of described arithmetical circuit for constituting by op amp.
The beneficial effects of the utility model are: the utility model comes the size of electric current in the winch motor of flowing through is detected by current transformer, and electric current has been realized noncontact measurement, and not only metering circuit is simple, and result of a measurement also relatively accurately; The utility model has been realized the actv. sound and light alarm by arithmetical circuit, solid-state relay, loud speaker, the bulb that matches with current transformer is set.
Description of drawings
Fig. 1 is schematic circuit diagram of the present utility model.
Among the figure: 1 three phase mains, 2 winch motors, 3 AC contactor, 4 current transformers, 5 arithmetical circuits, 6 first solid-state relay, 7 second solid-state relay, 8 loud speakers, 9 bulbs.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, provided schematic circuit diagram of the present utility model, it comprises three phase mains 1, winch motor 2, AC contactor 3, current transformer 4, arithmetical circuit 5, first solid-state relay 6, second solid-state relay 7, loud speaker 8, bulb 9; Shown three phase mains 1 is used for powering to winch motor 2, and AC contactor 3 is used for the running state of winch is controlled.Current transformer 4 is used for one of three phase mains 1 is measured mutually, and a quantitative data input that records is in arithmetical circuit 5, the circuit size of 5 pairs of D.C mutual-inductor outputs of arithmetical circuit is judged, detect its numerical value and whether surpassed specified value, also just be equivalent to have realized measurement size of current in the winch motor 2 of flowing through.First solid-state relay 6 all is connected with the mouth of arithmetical circuit 5 with second solid-state relay 7, and first solid-state relay 6 and second solid-state relay 7 are in series with the loop at loud speaker 8 and bulb 9 places respectively, so that realize sound and light of alarm.
The utility model is in the process of using, if winch overload, then the speed of winch motor 2 can diminish, the power reduction of output, and three phase mains 1 voltage does not have change, so electric current can increase, when arithmetical circuit 5 detects D.C mutual-inductor 4 output vagabond current values greater than rated value, will control two solid-state relay (6,7) closure, and then the circuit closed at loud speaker 8 and bulb 9 places, realized sound and light of alarm.
Claims (3)
1. coalmine winch overload annunciator that adopts current transformer, comprise three phase mains (1) that is used to provide electric energy and the winch motor (2) that is used to drive winch work, it is characterized in that: the warning circuit of realizing warning when also being included in winch motor (2) overload, this warning circuit comprises current transformer (4), arithmetical circuit (4) and combined aural and visual alarm, in described current transformer (4) and the three phase mains (1) one forms mutual inductance mutually, the mouth of current transformer is connected with the input end of arithmetical circuit, and the mouth of arithmetical circuit (4) is connected with combined aural and visual alarm and drives it and realizes reporting to the police.
2. the coalmine winch overload annunciator of employing current transformer according to claim 1 is characterized in that: described acoustic-optic alarm comprises loud speaker (8), bulb (9) and first solid-state relay (6) and second solid-state relay (7) that all are connected with the mouth of arithmetical circuit (5); Described first solid-state relay (8) and second solid-state relay (7) are in series with the loop at loud speaker (8) and bulb (9) place respectively.
3. the coalmine winch overload annunciator of employing current transformer according to claim 1 and 2 is characterized in that: the arithmetical circuit of described arithmetical circuit (5) for being made of op amp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201143663U CN202016818U (en) | 2011-04-19 | 2011-04-19 | Coal mining winch overload alarm adopting current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201143663U CN202016818U (en) | 2011-04-19 | 2011-04-19 | Coal mining winch overload alarm adopting current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202016818U true CN202016818U (en) | 2011-10-26 |
Family
ID=44810492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201143663U Expired - Fee Related CN202016818U (en) | 2011-04-19 | 2011-04-19 | Coal mining winch overload alarm adopting current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202016818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101851A (en) * | 2011-11-15 | 2013-05-15 | 淮南矿业(集团)有限责任公司 | Winch alarm device for mining |
| CN105529689A (en) * | 2015-12-09 | 2016-04-27 | 珠海格力电器股份有限公司 | Servo overload detection method, device and system |
-
2011
- 2011-04-19 CN CN2011201143663U patent/CN202016818U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101851A (en) * | 2011-11-15 | 2013-05-15 | 淮南矿业(集团)有限责任公司 | Winch alarm device for mining |
| CN103101851B (en) * | 2011-11-15 | 2015-06-17 | 淮南矿业(集团)有限责任公司 | Winch alarm device for mining |
| CN105529689A (en) * | 2015-12-09 | 2016-04-27 | 珠海格力电器股份有限公司 | Servo overload detection method, device and system |
| CN105529689B (en) * | 2015-12-09 | 2018-09-07 | 珠海格力电器股份有限公司 | Servo overload detection method, device and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202016818U (en) | Coal mining winch overload alarm adopting current transformer | |
| CN204989434U (en) | LED lamp and LED power detecting and display device | |
| CN202583333U (en) | Human body static detecting system | |
| CN111257618A (en) | Cubical switchboard contact current measurement ring with from function of getting electricity | |
| CN203982550U (en) | Multi-functional carbon monoxide detecting alarm | |
| CN203466626U (en) | Intelligent monitoring device for temporary power supply box of substation construction engineering | |
| CN102854472B (en) | Storage battery sensor based on Internet of things technology | |
| CN202149937U (en) | Electric energy meter calibrating device and calibrating system | |
| CN203929935U (en) | Operation power parameter determinator based on Internet of Things | |
| CN204515100U (en) | Ups power supervisory system | |
| CN202815644U (en) | High-power full-automatic intelligent alternative current (AC) voltage stabilized power supply | |
| CN202939760U (en) | Multifunctional electrical fire monitoring detector | |
| CN203326715U (en) | Complete-set direct-current power supply system | |
| CN204556736U (en) | Large-scale power distribution cabinet electromagnetic radiation detector | |
| CN206400045U (en) | The many situations of transformer remind control device | |
| CN202903859U (en) | AC current detection alarm circuit | |
| CN206832906U (en) | A kind of device power automatic detection device | |
| CN105301343A (en) | Power monitoring system of three phase power supply | |
| CN204679558U (en) | A kind of intelligent electric instrument | |
| CN205246157U (en) | Discharge statistics ware of statistics of can generating electricity by oneself discharge | |
| CN204439801U (en) | A kind of power supply integral test system | |
| CN202887379U (en) | Pre-winding type power line alarm device | |
| Akhil et al. | Enhanced Low Cost Smart Energy Meter with Theft Detection using IoT | |
| CN205139662U (en) | Intelligent steady voltage controller | |
| CN204758688U (en) | Alternating current transships alarm device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20120419 |