CN102185282A - Overload protection device for electric capstan - Google Patents
Overload protection device for electric capstan Download PDFInfo
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- CN102185282A CN102185282A CN2011101319909A CN201110131990A CN102185282A CN 102185282 A CN102185282 A CN 102185282A CN 2011101319909 A CN2011101319909 A CN 2011101319909A CN 201110131990 A CN201110131990 A CN 201110131990A CN 102185282 A CN102185282 A CN 102185282A
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Abstract
The invention discloses an overload protection device for an electric capstan. The overload protection device has an alarming function, is safe, highly reliable, long in service life and favorable for protecting the electric capstan, and ensures short time consumed for recovery from overload. The overload protection device comprises a signal acquisition module, a signal processing module and an execution module, wherein the signal acquisition module comprises a shunting resistor; one end of the shunting resistor is electrically connected with the input end of a motor of the electric capstan and the input end of the signal processing module respectively, and the other end of the shunting resistor is grounded; the execution module comprises a sound warning unit and a contactor control unit; the contactor control unit is used for controlling the on/off of a contactor connected in series to an input circuit of the motor; and the output end of the signal processing module is electrically connected with the input end of the sound warning unit and the input end of the contactor control unit respectively.
Description
Technical field
The present invention relates to the electric capstan technical field, specifically is a kind of overload protection arrangement of electric capstan.
Background technology
The overload protection arrangement of present electric capstan is when electric capstan transships; motor generally can be rotated further; power can not in time disconnect; and disconnect the back and could recover use because overload protection arrangement itself needs requirement such as heat radiation can expend long time; the reliability of overload protection arrangement and the useful life of overload protection arrangement have been reduced; and be unfavorable for protection to electric capstan; owing to there is not real-time reminding user's device during overload; transship often after a period of time; the user just knows transships and handles, and like this, steel wire rope is broken easily; it is dangerous to hurt sb.'s feelings etc.; motor also burns out easily, is unfavorable for the protection to electric capstan.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of and both can report to the police, and security reliability is not only good, useful life but also length, recovers after the overload to use institute's elapsed time short again, and helps overload protection arrangement to the electric capstan of the protection of electric capstan.
Technical scheme of the present invention is, the overload protection arrangement of electric capstan of the present invention, it comprises signal acquisition module, signal processing module and Executive Module, described signal acquisition module comprises shunt resistance, one end of shunt resistance is electrically connected the other end ground connection of shunt resistance with the input of the motor of electric capstan and the input of signal processing module respectively; Executive Module comprises sound caution unit and contactor control unit, the contactor control unit is used to control the break-make that is serially connected in the contactor on the motor input circuit, and the output of described signal processing module is electrically connected with the input of sound caution unit and the input of contactor control unit respectively.
After adopting said structure; the present invention compared with prior art; have the following advantages: the present invention samples by shunt resistance and judges the operating condition of motor; during when motor overload or near overload; signal processing module can be dealt with rapidly and command execution module is carried out corresponding actions; be that sound caution unit carries out audible alarm real-time reminding user; contactor control unit control contactor disconnects the motor outage is stopped; thereby finish overload protection to electric capstan; when the overload phenomenon is eliminated; electric capstan can be reused again at once; overload protection arrangement resets only needs 5 seconds; basically need not to wait for and just can recover to use; this shows; the present invention can make the quick stall of motor; when having overcome prior art electric capstan overload; motor can be rotated further; power can not in time disconnect; cause that steel wire rope breaks or other fault; cause the defective of hidden danger; and it is sensitive to have the shunt resistance sampling; the advantage that precision is high; and have sound caution unit can real-time reminding; so both having, the present invention can report to the police; security reliability is good again; useful life is long again; recover again after the overload to use institute's elapsed time short, and help advantage the protection of electric capstan.
As improvement, described signal processing module comprises signal amplification unit, control unit and power supply unit of voltage regulation, and power supply unit of voltage regulation is electrically connected with signal amplification unit, control unit respectively, and the output of signal amplification unit is electrically connected with the input of control unit; One end of described shunt resistance is electrically connected an end that is meant shunt resistance and is electrically connected with the input of signal amplification unit with the input of signal processing module; The output of described signal processing module is electrically connected with the input of the input of sound caution unit and contactor control unit respectively that the output that is meant control unit is warned the input of unit with sound respectively and the input of contactor control unit is electrically connected, owing to possess power supply unit of voltage regulation, like this, more help under the situation of the subsidiary storage battery power supply of the vehicles such as automobile, ship itself, using, make reliability of the present invention can not be subjected to the battery voltage influence of fluctuations.
Description of drawings
Accompanying drawing is the circuit theory diagrams of the overload protection arrangement of electric capstan of the present invention.
Shown in the figure, 1, signal acquisition module, 2.1, signal amplification unit, 2.2, control unit, 2.3, power supply unit of voltage regulation, 3.1, sound caution unit, 3.2, the contactor control unit.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
The overload protection arrangement of electric capstan of the present invention, it comprises signal acquisition module 1, signal processing module and Executive Module, described signal acquisition module 1 comprises shunt resistance RR, the end of shunt resistance RR is electrically connected the other end ground connection of shunt resistance RR with the input of the motor of electric capstan and the input of signal processing module respectively; Executive Module comprises sound caution unit 3.1 and contactor control unit 3.2, contactor control unit 3.2 is used to control the break-make that is serially connected in the contactor on the motor input circuit, control the start and stop of motor by the break-make of contactor, the output of described signal processing module is electrically connected with the input of sound caution unit 3.1 and the input of contactor control unit 3.2 respectively.
Described signal processing module comprises signal amplification unit 2.1, control unit 2.2 and power supply unit of voltage regulation 2.3, power supply unit of voltage regulation 2.3 is electrically connected with signal amplification unit 2.1, control unit 2.2 respectively, and the output of signal amplification unit 2.1 is electrically connected with the input of control unit 2.2; The end of described shunt resistance RR is electrically connected an end that is meant shunt resistance RR and is electrically connected with the input of signal amplification unit 2.1 with the input of signal processing module; The output of described signal processing module is electrically connected with the input of the input of sound caution unit 3.1 and contactor control unit 3.2 respectively that the output that is meant control unit 2.2 is warned the input of unit 3.1 with sound respectively and the input of contactor control unit 3.2 is electrically connected.
In this example, described signal acquisition module 1 also comprises resistance R 1 and capacitor C 1, one end of resistance R 1 is electrically connected with the end of described shunt resistance RR, one end of the other end of resistance R 1 and capacitor C 1 is electrically connected with No. 3 pins of signal amplification unit 2.1 amplifier IC2A, the other end ground connection of capacitor C 1, the purpose of She Zhiing is the sampling better reliability that makes signal acquisition module 1 like this.
Described signal amplification unit 2.1, control unit 2.2 and power supply unit of voltage regulation 2.3 are prior art, and control unit 2.2 is a single-chip microcomputer, do not add and give unnecessary details.
Described sound caution unit 3.1 and contactor control unit 3.2 all adopt the form of triode control relay to realize output, triode is by described Single-chip Controlling, the break-make of the relay control buzzer in the sound caution unit 3.1 realizes voice output, and the break-make of the relay control contactor of contactor control unit 3.2 is controlled the start and stop of motor.
Claims (2)
1. the overload protection arrangement of an electric capstan, it comprises signal acquisition module, signal processing module and Executive Module, it is characterized in that, described signal acquisition module comprises shunt resistance, one end of shunt resistance is electrically connected the other end ground connection of shunt resistance with the input of the motor of electric capstan and the input of signal processing module respectively; Executive Module comprises sound caution unit and contactor control unit, the contactor control unit is used to control the break-make that is serially connected in the contactor on the motor input circuit, and the output of described signal processing module is electrically connected with the input of sound caution unit and the input of contactor control unit respectively.
2. the overload protection arrangement of a kind of electric capstan according to claim 1, it is characterized in that, described signal processing module comprises signal amplification unit, control unit and power supply unit of voltage regulation, power supply unit of voltage regulation is electrically connected with signal amplification unit, control unit respectively, and the output of signal amplification unit is electrically connected with the input of control unit; One end of described shunt resistance is electrically connected an end that is meant shunt resistance and is electrically connected with the input of signal amplification unit with the input of signal processing module; The output of described signal processing module is electrically connected with the input of the input of sound caution unit and contactor control unit respectively that the output that is meant control unit is warned the input of unit with sound respectively and the input of contactor control unit is electrically connected.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101319909A CN102185282A (en) | 2011-05-20 | 2011-05-20 | Overload protection device for electric capstan |
| US13/183,394 US20120293894A1 (en) | 2011-05-20 | 2011-07-14 | Supervision and protection for an electric capstan |
| AU2011218726A AU2011218726A1 (en) | 2011-05-20 | 2011-09-02 | A supervision and protection for an electric capstan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101319909A CN102185282A (en) | 2011-05-20 | 2011-05-20 | Overload protection device for electric capstan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102185282A true CN102185282A (en) | 2011-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101319909A Pending CN102185282A (en) | 2011-05-20 | 2011-05-20 | Overload protection device for electric capstan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102185282A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692274A (en) * | 2015-03-31 | 2015-06-10 | 浙江冠林机械有限公司 | Electric block with protector |
| CN106644192A (en) * | 2016-11-30 | 2017-05-10 | 宁波赤马绞盘有限公司 | Safety device for winch |
| CN106672837A (en) * | 2016-11-30 | 2017-05-17 | 宁波赤马绞盘有限公司 | Winch capable of displaying load |
| CN113555851A (en) * | 2020-04-26 | 2021-10-26 | 浙江阜康机械有限公司 | High-precision overcurrent protector of electric capstan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01308125A (en) * | 1988-05-31 | 1989-12-12 | Aisin Seiki Co Ltd | Abnormality detector for motor |
| CN1261651A (en) * | 1999-01-20 | 2000-08-02 | 三星光州电子株式会社 | Protector for refrigerating compressor and protecting method for refrigerating compressor |
| WO2002017459A1 (en) * | 2000-08-23 | 2002-02-28 | Hi-Key Limited | A control circuit for controlling a power supply to a motor |
| CN200941550Y (en) * | 2006-08-14 | 2007-08-29 | 上海万谱电器有限公司 | Motor protector |
| CN202121300U (en) * | 2011-05-20 | 2012-01-18 | 宁波赤马绞盘有限公司 | Overload protection device of electric winch |
-
2011
- 2011-05-20 CN CN2011101319909A patent/CN102185282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01308125A (en) * | 1988-05-31 | 1989-12-12 | Aisin Seiki Co Ltd | Abnormality detector for motor |
| CN1261651A (en) * | 1999-01-20 | 2000-08-02 | 三星光州电子株式会社 | Protector for refrigerating compressor and protecting method for refrigerating compressor |
| WO2002017459A1 (en) * | 2000-08-23 | 2002-02-28 | Hi-Key Limited | A control circuit for controlling a power supply to a motor |
| CN200941550Y (en) * | 2006-08-14 | 2007-08-29 | 上海万谱电器有限公司 | Motor protector |
| CN202121300U (en) * | 2011-05-20 | 2012-01-18 | 宁波赤马绞盘有限公司 | Overload protection device of electric winch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692274A (en) * | 2015-03-31 | 2015-06-10 | 浙江冠林机械有限公司 | Electric block with protector |
| CN106644192A (en) * | 2016-11-30 | 2017-05-10 | 宁波赤马绞盘有限公司 | Safety device for winch |
| CN106672837A (en) * | 2016-11-30 | 2017-05-17 | 宁波赤马绞盘有限公司 | Winch capable of displaying load |
| CN113555851A (en) * | 2020-04-26 | 2021-10-26 | 浙江阜康机械有限公司 | High-precision overcurrent protector of electric capstan |
| CN113555851B (en) * | 2020-04-26 | 2023-12-08 | 浙江阜康机械有限公司 | High-precision overcurrent protector of electric winch |
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Application publication date: 20110914 |