CN201825661U - Electrical control system of gantry crane - Google Patents
Electrical control system of gantry crane Download PDFInfo
- Publication number
- CN201825661U CN201825661U CN2010205725851U CN201020572585U CN201825661U CN 201825661 U CN201825661 U CN 201825661U CN 2010205725851 U CN2010205725851 U CN 2010205725851U CN 201020572585 U CN201020572585 U CN 201020572585U CN 201825661 U CN201825661 U CN 201825661U
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- CN
- China
- Prior art keywords
- control system
- gantry crane
- frequency converter
- plc
- operating unit
- Prior art date
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Abstract
The utility model discloses an electrical control system of a gantry crane, which comprises an operating part, a control part, a frequency converter, a plurality of power contactors and a plurality of operating mechanism motors, wherein a PLC( programmable logic controller) is adopted by the control part and connected with the operating part, the frequency converter and the power contactors, and the power contactors are respectively connected between the frequency converter and the operating mechanism motors. The PLC is adopted as the control part of the electrical control system, therefore, a plurality of operating mechanisms of the gantry crane can be controlled to act by one set of control system, thus better greatly simplifying the structure of the electrical control system of the gantry crane, and saving a great amount of cost.
Description
Technical field
The utility model relates to a kind of electric control system of gantry crane.
Background technology
Gantry crane is a kind of in mining, metallurgical, the a large amount of hoisting cranes that use of a plurality of occasions such as harbour, yet present gantry crane adopts the form of operating unit configuration one a cover control system mostly, and in real-world operation, all operating units of a large amount of gantry cranes can not move simultaneously, and this has just caused the idle of a part of control system, thereby produce waste.
The utility model content
The purpose of this utility model is to provide a kind of electric control system that can simplify the electric control system structure and save the gantry crane of great amount of cost.
The electric control system of this gantry crane that the utility model provides, comprise operating unit, function unit, frequency converter, some power contactors and some operating unit motors, described function unit adopts PLC, described PLC is connected with described operating unit, described frequency converter and each power contactor, and described each power contactor is connected between described frequency converter and each the operating unit motor.The utility model is owing to adopt the function unit of PLC as its electric control system, realized the action of a plurality of operating units in the cover control system control gantry crane, simplify the gantry crane electric control system significantly, thereby saved great amount of cost.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Fig. 2 is the functional block diagram of the large and small car operation of the utility model control.
The specific embodiment
Fig. 1 is a schematic block circuit diagram of the present utility model, comprise operating unit, PLC, frequency converter, some power contactors, some operating unit motors and some operating units, wherein PLC is the core of gantry crane electric control system, frequency converter is the driving governor of each operating unit, according to actual condition of service, confirm not can with the time operation several operating units, selecting wherein, the operating unit of running power maximum disposes its electric control system, when operation during one of them operating unit, PLC judges adhesive and disconnection with the power contactor of controlling corresponding operating unit motor to the run signal of the corresponding operating unit of operating unit output, simultaneously, PLC gives converter parameter switching signal and run signal, the frequency converter intrinsic parameter is chosen as cooresponding controlled variable of corresponding operating unit and operation, and frequency converter is exported the control signal of corresponding operating unit and is given corresponding operating unit motor, thereby controls the action of corresponding operating unit.Switch and the power supply of corresponding operating unit motor when switching at the operational factor of each operating unit, in the PLC program, be provided with the time-delay switching and the interlocking of each operating unit control, prevent two phenomenons that operating unit moves simultaneously, thereby ensured the stability of a whole set of electric system.
Fig. 2 is that the utility model is big, the functional block diagram of trolley travelling control, comprise operating control handle, PLC, greatly, vehicle motor and big, dolly, the shared cover electric control system of the traveling mechanism of the larger traveller of gantry crane and wheeling mechanism, PLC is the core of its electric control system, when the driver in driver's cab during operating control handle, if get to the cart operational taps, then control handle is defeated by PLC with the cart run signal, and PLC resolves it after receiving this signal, the power contactor adhesive of cargo motor, the not adhesive of power contactor of dolly, simultaneously, PLC gives converter parameter switching signal and run signal, the frequency converter intrinsic parameter is chosen as cart moves cooresponding controlled variable and operation, frequency converter output cart moves cooresponding control signal and gives cargo motor, thus the action of control cart; If get to the trolley travelling gear, then control handle is defeated by PLC with the trolley travelling signal, PLC resolves it after receiving this signal, the power contactor adhesive of vehicle motor, the not adhesive of power contactor of cart, simultaneously, PLC gives converter parameter switching signal and run signal, the frequency converter intrinsic parameter is chosen as cooresponding controlled variable of wheeling mechanism and operation, and the cooresponding control signal of frequency converter output trolley travelling is given vehicle motor, thus the action of control dolly.When the power supply of large and small car operational factor and large and small vehicle motor switches, be provided with the time-delay switching and the interlocking of the control of cart and trolley travelling in the PLC program, prevented the phenomenon that large and small car moves simultaneously, ensured the stability of its electric system.
Claims (1)
1. the electric control system of a gantry crane, comprise operating unit, function unit, frequency converter, some power contactors and some operating unit motors, it is characterized in that described function unit adopts PLC, described PLC is connected with described operating unit, described frequency converter and each power contactor, and described each power contactor is connected between described frequency converter and each the operating unit motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205725851U CN201825661U (en) | 2010-10-22 | 2010-10-22 | Electrical control system of gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205725851U CN201825661U (en) | 2010-10-22 | 2010-10-22 | Electrical control system of gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201825661U true CN201825661U (en) | 2011-05-11 |
Family
ID=43964211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205725851U Expired - Lifetime CN201825661U (en) | 2010-10-22 | 2010-10-22 | Electrical control system of gantry crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201825661U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502411A (en) * | 2011-08-19 | 2012-06-20 | 河南卫华重型机械股份有限公司 | Accurate automatic positioning control system of crane and method thereof |
| CN105438991A (en) * | 2015-12-10 | 2016-03-30 | 中国船舶重工集团公司第七一三研究所 | Automatic addressing and positioning control system and method for static-pressure traveling cranes |
| CN105523479A (en) * | 2016-01-12 | 2016-04-27 | 南开大学 | Bridge crane electrical control system based on PLC (Programmable Logic Controller) and variable frequency motor |
| CN109867206A (en) * | 2019-03-05 | 2019-06-11 | 邯郸钢铁集团有限责任公司 | Overhead traveling crane translation mechanism redundancy control apparatus and method |
| CN111362144A (en) * | 2019-12-24 | 2020-07-03 | 华德起重机（天津）股份有限公司 | Method and device for controlling three mechanisms of crane |
| CN111362140A (en) * | 2019-12-24 | 2020-07-03 | 华德起重机（天津）股份有限公司 | Crane |
-
2010
- 2010-10-22 CN CN2010205725851U patent/CN201825661U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502411A (en) * | 2011-08-19 | 2012-06-20 | 河南卫华重型机械股份有限公司 | Accurate automatic positioning control system of crane and method thereof |
| CN102502411B (en) * | 2011-08-19 | 2015-07-01 | 河南卫华重型机械股份有限公司 | Accurate automatic positioning control system of crane and method thereof |
| CN105438991A (en) * | 2015-12-10 | 2016-03-30 | 中国船舶重工集团公司第七一三研究所 | Automatic addressing and positioning control system and method for static-pressure traveling cranes |
| CN105523479A (en) * | 2016-01-12 | 2016-04-27 | 南开大学 | Bridge crane electrical control system based on PLC (Programmable Logic Controller) and variable frequency motor |
| CN105523479B (en) * | 2016-01-12 | 2017-07-18 | 南开大学 | Overhead crane electric control system based on PLC and variable-frequency motor |
| CN109867206A (en) * | 2019-03-05 | 2019-06-11 | 邯郸钢铁集团有限责任公司 | Overhead traveling crane translation mechanism redundancy control apparatus and method |
| CN109867206B (en) * | 2019-03-05 | 2024-06-11 | 邯郸钢铁集团有限责任公司 | Crown block translation mechanism redundancy control device and method |
| CN111362144A (en) * | 2019-12-24 | 2020-07-03 | 华德起重机（天津）股份有限公司 | Method and device for controlling three mechanisms of crane |
| CN111362140A (en) * | 2019-12-24 | 2020-07-03 | 华德起重机（天津）股份有限公司 | Crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |