CN101085662B - Construction lifter excess load controller - Google Patents
Construction lifter excess load controller Download PDFInfo
- Publication number
- CN101085662B CN101085662B CN200710023850A CN200710023850A CN101085662B CN 101085662 B CN101085662 B CN 101085662B CN 200710023850 A CN200710023850 A CN 200710023850A CN 200710023850 A CN200710023850 A CN 200710023850A CN 101085662 B CN101085662 B CN 101085662B
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- circuit
- main control
- control chip
- excess load
- signal
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Abstract
The overloading controller comprises sensors for collecting the three phase electric signal to send the one signal to the main control chip for identification, the other going through the source rectifier current to compare the magnified current, limit the control circuit to send to the main control chip for computation, analysis, main control chip connecting with the output reminding signal circuit and overloading signal and its control circuit, with an electric source providing power to the main control chip. It is reasonable in structure, simple in installation, convenient and fine in feature.
Description
Technical field:
The present invention relates to a kind of construction lifter excess load fender guard.
Background technology:
The pressure sensor that existing construction lifter excess load protector adopts mostly because there is certain degree of difficulty in its installation, makes applicable situation have certain limitation on the one hand.Because the mechanics of pressure sensor self damages easily, particularly under the situation of bad working environments, be difficult to guarantee its reliability on the other hand.
Summary of the invention:
The object of the present invention is to provide a kind of rational in infrastructure, install simple, convenient, the construction lifter excess load controller that performance is good.
Technical solution of the present invention is:
A kind of construction lifter excess load controller, it is characterized in that: comprise the sensor of gathering electrical motor three phase mains signal, the road signal that sensor will collect is sent into main control chip through the phase signal transmission circuit and is carried out phase identification, another road signal that sensor will collect is sent into main control chip and is calculated, analyzes through active rectifying circuit, comparison amplifying circuit, limiting protecting circuit, main control chip is connected with output cue circuit, and main control chip is connected with the overload control circuit of overload indication and control motor work; A power circuit provides power supply for main control chip.
Power circuit comprises by transformation, rectification, the opposite polarity signal of voltage stabilizing two-way provides the positive and negative power supply of positive and negative power supply that circuit is provided to main control chip.Positive supply provides and is connected to antijamming feature in the circuit.Positive supply provides and is connected to ups power in the circuit.Output cue circuit comprises with main control chip bonded assembly serial ports changes the parallel port, and serial ports changes the parallel port and is connected with three charactrons that show weight, and other has the one digit number sign indicating number pipe of display power supply and function conversion to be connected with main control chip.
The present invention is rational in infrastructure, and installation is simple, convenient, and performance is good.The present invention adopts advanced phase identification technology, can accurately determine the variation of phase place.Simultaneously, signal by sensor sample calculates, analyzes electric motor starting to the power between the operation, in conjunction with three-phase potential, realize in the building hoist process of rising or falling realization to the algorithms of different of loaded weight, finally judge whether the weight of carrying overloads.
Description of drawings:
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the configuration diagram of one embodiment of the invention.
Fig. 2 is physical circuit figure of the present invention.
Fig. 3 is a power circuit diagram.
Fig. 4 is sensor signal transmission circuit figure.
The specific embodiment:
A kind of construction lifter excess load controller has been described among Fig. 1, Fig. 2, comprise the sensor 2 of gathering electrical motor 1 three phase mains signal, the road signal that sensor 2 will collect is sent into main control chip 4 through phase signal transmission circuit 3 and is carried out phase identification, according to the rotating principle, V and W are only surveyed in rotating, and who arrives first, and V arrives first just to be to be changeed.W commentaries on classics earlier is counter-rotating (being that elevator rises and descends); another road signal that sensor 2 will collect is sent into main control chip 4 and is calculated, analyzes through active rectifying circuit 5, comparison amplifying circuit 6, limiting protecting circuit 7; main control chip 4 is connected with output cue circuit; output cue circuit comprises with main control chip 4 bonded assembly serial ports changes parallel port 8 (model 74H595); serial ports changes parallel port 8 and is connected with three charactrons 9 that show weight, and other has the one digit number sign indicating number pipe 10 of display power supply and function conversion to be connected with main control chip 4.Main control chip 4 is connected with the overload control circuit 11 of overload indication and control motor work; A power circuit 12 provides power supply for main control chip 4.Main control chip 4 also with indicating circuit 13 up, down indicating circuit 14, voice warning circuit 15, memory device 16, dosage circuit 17, decrement circuit 18 etc.
Specifically comprise resistance R 1～R35, capacitor C 1～C18, diode D1～D14, light idol IC5, IC13, crystal oscillator Y1, function selector button SW1～SW3, aerotron Q1, main control chip PIC16F913, ic chip 6, IC7, IC12, charactron IC9～IC11, IC14 etc.
Power circuit comprises by transformation, rectification, the opposite polarity signal of voltage stabilizing two-way provides the positive and negative power supply of positive and negative power supply that circuit is provided to main control chip.Only power supply provides and is connected to antijamming feature in the circuit.Positive supply provides and is connected to ups power in the circuit.Specifically comprise resistance R 36, capacitor C 19～C28, diode D15～D24, regulator block 7812,7805,7912 and antijamming feature (DC-isolation module) DC, inductance L 1, L2 etc.
Comprise R37～R56, capacitor C 29～C32, diode D25～D36, active rectification LM324, amplifier 1C2C etc. among Fig. 4.
Claims (5)
1. construction lifter excess load controller, it is characterized in that: comprise the sensor of gathering electrical motor three phase mains signal, the road signal that sensor will collect is sent into main control chip through the phase signal transmission circuit and is carried out phase identification, another road signal that sensor will collect is sent into main control chip and is calculated, analyzes through active rectifying circuit, comparison amplifying circuit, limiting protecting circuit, main control chip is connected with output cue circuit, and main control chip is connected with the overload control circuit of overload indication and control motor work; A power circuit provides power supply for main control chip.
2. construction lifter excess load controller according to claim 1 is characterized in that: power circuit comprises by transformation, rectification, the opposite polarity signal of voltage stabilizing two-way provides the positive and negative power supply of positive and negative power supply that circuit is provided to main control chip.
3. construction lifter excess load controller according to claim 2 is characterized in that: positive supply provides and is connected to antijamming feature in the circuit.
4. construction lifter excess load controller according to claim 2 is characterized in that: positive supply provides and is connected to ups power in the circuit.
5. according to claim 1,2,3 or 4 described construction lifter excess load controllers, it is characterized in that: output cue circuit comprises with main control chip bonded assembly serial ports changes the parallel port, serial ports changes the parallel port and is connected with three charactrons that show weight, and other has the one digit number sign indicating number pipe of display power supply and function conversion to be connected with main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710023850A CN101085662B (en) | 2007-06-21 | 2007-06-21 | Construction lifter excess load controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710023850A CN101085662B (en) | 2007-06-21 | 2007-06-21 | Construction lifter excess load controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101085662A CN101085662A (en) | 2007-12-12 |
| CN101085662B true CN101085662B (en) | 2010-05-19 |
Family
ID=38936871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710023850A Expired - Fee Related CN101085662B (en) | 2007-06-21 | 2007-06-21 | Construction lifter excess load controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101085662B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774720B (en) * | 2012-08-16 | 2016-09-14 | 哈尔滨市机电类特种设备监督检验研究院 | Elevator overload protection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3714903A1 (en) * | 1987-05-05 | 1988-11-24 | Skt Podem | Overload limiter for lifting (hoisting) machines |
| CN2402654Y (en) * | 2000-01-04 | 2000-10-25 | 刘俊成 | Cradle overload protector |
| CN2409194Y (en) * | 1999-10-19 | 2000-12-06 | 湘潭江麓起重设备厂 | Construction elevator overload alarm |
| CN1676455A (en) * | 2004-03-30 | 2005-10-05 | 三菱电机株式会社 | Elevator control device |
-
2007
- 2007-06-21 CN CN200710023850A patent/CN101085662B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3714903A1 (en) * | 1987-05-05 | 1988-11-24 | Skt Podem | Overload limiter for lifting (hoisting) machines |
| CN2409194Y (en) * | 1999-10-19 | 2000-12-06 | 湘潭江麓起重设备厂 | Construction elevator overload alarm |
| CN2402654Y (en) * | 2000-01-04 | 2000-10-25 | 刘俊成 | Cradle overload protector |
| CN1676455A (en) * | 2004-03-30 | 2005-10-05 | 三菱电机株式会社 | Elevator control device |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2006-321640A 2006.11.30 |
| JP特开平10-167595A 1998.06.23 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101085662A (en) | 2007-12-12 |
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Granted publication date: 20100519 Termination date: 20160621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |