CN204529065U - The controller for electromagnetic crane of accurate lifting single steel plate - Google Patents
The controller for electromagnetic crane of accurate lifting single steel plate Download PDFInfo
- Publication number
- CN204529065U CN204529065U CN201520244278.3U CN201520244278U CN204529065U CN 204529065 U CN204529065 U CN 204529065U CN 201520244278 U CN201520244278 U CN 201520244278U CN 204529065 U CN204529065 U CN 204529065U
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- China
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- lifting
- steel plate
- operation control
- control circuit
- logic operation
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Abstract
The utility model belongs to a kind of controller for electromagnetic crane of accurate lifting single steel plate, comprises rectifier transformer (1), three-phase full-bridge controlled rectifier (2), voltage transformer (3), lifting electromagnet (4), current transformer (5), analog-to-digital conversion module (6), energizing signal driving circuit (10), adjustable magnetic switch (8), logic operation control circuit (9) and individual lifting master cock (7); It is characterized in that connecting a logic operation control circuit (9) between energizing signal driving circuit (10) and analog-to-digital conversion module (6), logic operation control circuit (9) is connected with individual lifting master cock (7), adjustable magnetic switch (8); This utility model can accurate lifting single steel plate and simple to operate.
Description
Technical field
The utility model belongs to weight-lifting equipment, particularly a kind of controller for electromagnetic crane of accurate lifting single steel plate.
Background technology
When with electromagnet handling steel plate, sometimes accurate lifting steel plate in a pile steel plate is required, current domestic electromagnet control device is all the method adopting field switch and a potential device coupling, after opening the field switch of electromagnet, regulate the size of magnetic force to carry out accurately individual lifting to steel plate by regulator potentiometer again, this method Problems existing is: degree of regulation is low, complicated operation, efficiency is low, sometimes even cannot complete the lifting of accurate single steel plate; Also there is the problem that potential device is easy to wear, fault rate is high.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, provide a kind of and control accurately, the controller for electromagnetic crane of accurate lifting single steel plate simple to operate.
The technical scheme that the utility model technical solution problem adopts is: a kind of controller for electromagnetic crane of accurate lifting single steel plate, comprises rectifier transformer (1), three-phase full-bridge controlled rectifier (2), voltage transformer (3), lifting electromagnet (4), current transformer (5), analog-to-digital conversion module (6), energizing signal driving circuit (10), adjustable magnetic switch (8), logic operation control circuit (9) and individual lifting master cock (7); It is characterized in that connecting a logic operation control circuit (9) between energizing signal driving circuit (10) and analog-to-digital conversion module (6), logic operation control circuit (9) is connected with individual lifting master cock (7), adjustable magnetic switch (8).
The beneficial effects of the utility model are: accurately lifting single steel plate, control accurately, simple to operate, practicality and high efficiency.
Accompanying drawing explanation
Illustrate with embodiment below in conjunction with accompanying drawing.
Accompanying drawing is the controller for electromagnetic crane electrical principle diagram of block of accurate lifting single steel plate.
In accompanying drawing: 1-rectifier transformer; 2-three-phase full-bridge controlled rectifier; 3-voltage transformer; 4-lifting electromagnet; 5-current transformer; 6-analog-to-digital conversion module; Individual lifting master cock of 7-; 8-adjustable magnetic switch; 9-logic operation control circuit; 10-energizing signal driving circuit.
Detailed description of the invention
Embodiment, with reference to accompanying drawing, a controller for electromagnetic crane for accurate lifting single steel plate, comprises rectifier transformer (1), three-phase full-bridge controlled rectifier (2), voltage transformer (3), lifting electromagnet (4), current transformer (5), analog-to-digital conversion module (6), energizing signal driving circuit (10), adjustable magnetic switch (8), logic operation control circuit (9) and individual lifting master cock (7); It is characterized in that connecting a logic operation control circuit (9) between energizing signal driving circuit (10) and analog-to-digital conversion module (6), logic operation control circuit (9) is connected with individual lifting master cock (7), adjustable magnetic switch (8); Rectifier transformer (1) connects three-phase 380V power supply and three-phase full-bridge controlled rectifier (2); Three-phase full-bridge controlled rectifier (2) is connected with lifting electromagnet (4), a middle voltage transformer (3) in parallel, a current transformer (5) of connecting, and current transformer (5) is connected with analog-to-digital conversion module (6) with voltage transformer (3); Energizing signal driving circuit (10) is connected with three-phase full-bridge controlled rectifier (2) and logic operation control circuit (9); Individual lifting master cock (7), adjustable magnetic switch (8) are connected with logic operation control circuit (9).
The principle of work of this utility model is: during common lifting, individual lifting master cock (7) is placed in " common " position, regulate adjustable magnetic switch (8), logic operation control circuit (9) exports excitation trigging pulse, control three-phase full-bridge controlled rectifier (2) by energizing signal driving circuit (10) and export field voltage, to lifting electromagnet (4) power supply also multiple steel plates of lifting, the field voltage of three-phase full-bridge controlled rectifier (2) is DC 0-DC 220V; During accurate lifting single steel plate, stir individual lifting master cock to " individual " position, this control signal is delivered to logic operation control circuit (9) and is performed individual lifting pattern, the output voltage of three-phase full-bridge controlled rectifier (2) becomes lifting single steel plate required voltage DC 20V-DC 42V along with the change of master mode, thus the lifting single steel plate of fast accurate; In addition, adjustable magnetic of the present invention is controlled by incremental encoder, incremental encoder is a component part of adjustable magnetic switch (8), the angle of cw adjustment adjustable magnetic switch, the output field voltage of three-phase full-bridge controlled rectifier (2) increases, the angle of inhour adjustment adjustable magnetic switch, the output field voltage of three-phase full-bridge controlled rectifier (2) reduces; The adjustment angle of adjustable magnetic switch (8) is 0-110 degree, and when common lifting steel plate, the output field voltage of corresponding three-phase full-bridge controlled rectifier (2) is DC 0-DC 220V, and the field voltage average rate of change is 220/110=2V/ degree; When individual lifting pattern, 0-110 degree adjustment angles of corresponding adjustable magnetic switch (8), the output field voltage of three-phase full-bridge controlled rectifier (2) is DC 20V-DC 42V, and the field voltage average rate of change is 22/110=0.2V/ degree, and adjustable magnetic precision improves 10 times; In individual lifting pattern and after opening adjustable magnetic switch, within the scope of the angular adjustment of 110 degree of adjustable magnetic switch, the output of its field voltage changes between DC 20V-DC 42V, when voltage exports as a thinnest steel plate of lifting corresponding during DC 20V, operating personal can realize individual lifting requirement of lifting different-thickness steel plate by the angle of adjustment adjustable magnetic switch.
Claims (1)
1. a controller for electromagnetic crane for accurate lifting single steel plate, comprises rectifier transformer (1), three-phase full-bridge controlled rectifier (2), voltage transformer (3), lifting electromagnet (4), current transformer (5), analog-to-digital conversion module (6), energizing signal driving circuit (10), adjustable magnetic switch (8), logic operation control circuit (9) and individual lifting master cock (7); It is characterized in that connecting a logic operation control circuit (9) between energizing signal driving circuit (10) and analog-to-digital conversion module (6), logic operation control circuit (9) is connected with individual lifting master cock (7), adjustable magnetic switch (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520244278.3U CN204529065U (en) | 2015-04-22 | 2015-04-22 | The controller for electromagnetic crane of accurate lifting single steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520244278.3U CN204529065U (en) | 2015-04-22 | 2015-04-22 | The controller for electromagnetic crane of accurate lifting single steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204529065U true CN204529065U (en) | 2015-08-05 |
Family
ID=53743082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520244278.3U Expired - Fee Related CN204529065U (en) | 2015-04-22 | 2015-04-22 | The controller for electromagnetic crane of accurate lifting single steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204529065U (en) |
-
2015
- 2015-04-22 CN CN201520244278.3U patent/CN204529065U/en not_active Expired - Fee Related
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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: 20150805 Termination date: 20210422 |