CN111153332A - Tower crane locking control method and system - Google Patents
Tower crane locking control method and system Download PDFInfo
- Publication number
- CN111153332A CN111153332A CN202010123037.9A CN202010123037A CN111153332A CN 111153332 A CN111153332 A CN 111153332A CN 202010123037 A CN202010123037 A CN 202010123037A CN 111153332 A CN111153332 A CN 111153332A
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- CN
- China
- Prior art keywords
- frequency converter
- plc
- tower crane
- locking
- lifting
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a tower crane locking control method and a system thereof, wherein the method comprises the following steps of inputting serial numbers of a PLC (programmable logic controller), a lifting frequency converter, a variable amplitude frequency converter and a rotary frequency converter into a display device to realize mutual binding; the Internet platform sends the locking machine signal to the GPS controller, and the GPS acquires, processes and compiles the signal and sends the compiled signal to the PLC. The PLC is logically executed according to a preset lock, and is sent to the lifting frequency converter, the amplitude-variable frequency converter and the rotary frequency converter through the CAN bus, so that the logical control of the three frequency converters is realized, and the action locking of corresponding mechanisms is controlled. The method can effectively and accurately control the tower crane.
Description
Technical Field
The invention relates to the technical field of tower cranes, in particular to a tower crane locking control method and a tower crane locking control system.
Background
Due to the particularity of the tower crane industry, partial tower cranes in China are purchased in an installments payment mode, and meanwhile, the tower cranes in China are all provided with a GPS locking function for the purposes of large data acquisition of the work of the tower cranes, safety monitoring of the work state and the like. When the conditions of overdue payment of customers, loss of GPS or GPRS signals of the tower cranes and the like occur, the tower crane control system can have the conditions of active locking or passive locking and the like. The current lock control mode in the industry is as follows: the control system directly locks the tower crane to act, so that three mechanisms of lifting, amplitude variation and rotation are simultaneously locked, and the lifting hook can only act on one side. Under general conditions, the locking machine control only aims at the PLC, and the tower crane can be restored to work again through illegal means such as dismantling and replacing the PLC due to the fact that the replacement cost of the PLC is low and the cost of part of construction sites is low. However, after the electric control system is modified in a construction site, the safety devices, the limiting devices and other protection measures are not in place, so that potential safety hazards exist, and serious safety accidents can be caused.
Disclosure of Invention
The invention aims to solve the problems of illegal unlocking and difficult monitoring after the tower crane is locked by providing a tower crane locking control method and a tower crane locking control system.
In order to achieve the above object, in one aspect, the present invention provides a tower crane locking control method, including the following steps:
(1) inputting serial numbers of the PLC, the lifting frequency converter, the variable-amplitude frequency converter and the rotary frequency converter into a display device to realize mutual binding;
(2) the Internet platform sends the locking machine signal to the GPS controller, and the GPS acquires, processes and compiles the signal and sends the compiled signal to the PLC. The PLC is logically executed according to a preset lock, and is sent to the lifting frequency converter, the amplitude-variable frequency converter and the rotary frequency converter through the CAN bus, so that the logical control of the three frequency converters is realized, and the action locking of corresponding mechanisms is controlled.
Further, in the step (2), the PLC controls the variable amplitude frequency converter to lock the variable amplitude action, then controls the rotary frequency converter to lock the rotary action, and finally controls the lifting frequency converter to lock the lifting action.
Further, the internet platform sends the dynamic password to the PLC to realize unbinding.
On the other hand, the invention also provides a tower crane locking machine control system which comprises a PLC (programmable logic controller), a lifting frequency converter, a variable-amplitude frequency converter, a rotary frequency converter, a GPS (global positioning system), a display device and an internet platform, wherein the PLC, the lifting frequency converter, the variable-amplitude frequency converter, the rotary frequency converter, the GPS and the display device are in communication connection through a CAN (controller area network) bus; the system comprises a PLC controller, a hoisting frequency converter, a luffing frequency converter, a rotary frequency converter, a display device and an Internet platform, wherein the PLC controller is used for receiving a locking instruction and sending a locking control command, the hoisting frequency converter is used for executing the hoisting control command of a hook of a tower crane, the luffing frequency converter is used for executing a jib amplitude change control command of the tower crane, the rotary frequency converter is used for executing a rotation control command of a rotary platform of the tower crane, the display device is used for parameter display and binding setting, and the Internet platform is used for collecting field information of the tower crane and sending the control command.
The invention has the beneficial effects that: the invention provides a method for locking a PLC (programmable logic controller) and three frequency converters by a CAN (controller area network) bus, wherein the PLC and the three frequency converters are locked mutually, and the PLC receives a locking instruction after an internet platform sends the locking instruction, so that the three mechanisms are controlled to be locked logically to act, and meanwhile, the frequency converters are also locked. Through the arrangement, the tower crane can be effectively locked.
Drawings
FIG. 1 is a control flow diagram of the present invention;
FIG. 2 is a sequence diagram of the related actions for controlling three frequency converters;
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in figure 1, the tower crane locking control method is characterized by comprising the following steps of (1) inputting serial numbers of a PLC (programmable logic controller), a lifting frequency converter, a variable amplitude frequency converter and a rotary frequency converter into a display device to realize mutual binding, wherein before the tower crane works, the PLC and the frequency converter can be mutually verified through the serial numbers to be consistent with preset binding information, and the tower crane can normally work. (2) The Internet platform sends the locking machine signal to the GPS controller, and the GPS acquires, processes and compiles the signal and sends the compiled signal to the PLC. The PLC is logically executed according to a preset lock, and is sent to the lifting frequency converter, the amplitude-variable frequency converter and the rotary frequency converter through the CAN bus, so that the logical control of the three frequency converters is realized, and the action locking of corresponding mechanisms is controlled. When the machine is locked, the system not only locks the PLC, but also sends a locking signal to the three frequency converters through the bus, so that the frequency converters stop outputting, and control the corresponding mechanisms to act, thereby achieving the purpose of locking the machine. The lifting mechanism is a lifting hook, the amplitude variation mechanism is a trolley, and the slewing mechanism is a lifting arm. The control method is an integral and full-coverage control mode, solves the problem that the PLC is replaced privately to unlock after the tower crane locks the machine, and is difficult to monitor, and further realizes high control precision, good stability and low cost of the tower crane lock.
As shown in fig. 2, the PLC first controls the variable-amplitude frequency converter to lock the variable-amplitude action, then controls the rotary frequency converter to lock the rotary action, and finally controls the lifting frequency converter to lock the lifting action. The set time here is one hour.
The invention also provides a tower crane locking machine control system, which comprises a PLC controller, a lifting frequency converter, a variable-amplitude frequency converter, a rotary frequency converter, a GPS, a display device and an internet platform, wherein the PLC controller, the lifting frequency converter, the variable-amplitude frequency converter, the rotary frequency converter, the GPS and the display device are in communication connection through a CAN bus; the system comprises a PLC (programmable logic controller) controller, a lifting frequency converter, a luffing frequency converter, a rotary frequency converter, a display device and an Internet platform, wherein the PLC controller is used for receiving a locking instruction and sending a locking control command, the lifting frequency converter is used for executing a lifting control command of a lifting hook of the tower crane, the luffing frequency converter is used for executing a cargo boom amplitude change control command of the tower crane, the rotary frequency converter is used for executing a rotation control command of a rotary platform of the tower crane, the display device is used for parameter display and binding setting, and the Internet platform is used.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes which can be made within the knowledge of those skilled in the art without departing from the gist of the present invention are within the scope of the claims of the present invention.
Claims (4)
1. A tower crane locking control method is characterized by comprising the following steps:
(1) inputting serial numbers of the PLC, the lifting frequency converter, the variable-amplitude frequency converter and the rotary frequency converter into a display device to realize mutual binding;
(2) if the preset binding information is inconsistent, the Internet platform sends a locking signal to the GPS controller, the GPS acquires, processes and compiles the signal and sends the compiled signal to the PLC, and the PLC executes the logic according to the preset locking logic and sends the signal to the lifting frequency converter, the amplitude-variable frequency converter and the rotary frequency converter through the CAN bus to realize the logic control of the three frequency converters so as to control the action locking of the corresponding mechanism.
2. The tower crane locking control method according to claim 1, wherein: in the step (2), the PLC controls the variable amplitude frequency converter to lock the variable amplitude action, then controls the rotary frequency converter to lock the rotary action, and finally controls the lifting frequency converter to lock the lifting action.
3. The tower crane locking control method according to claim 1, wherein: and the Internet platform sends the dynamic password to the PLC to realize unbinding.
4. A tower crane locking control system is characterized in that: the intelligent control system comprises a PLC (programmable logic controller), a lifting frequency converter, a variable-amplitude frequency converter, a rotary frequency converter, a GPS (global positioning system), a display device and an internet platform, wherein the PLC, the lifting frequency converter, the variable-amplitude frequency converter, the rotary frequency converter, the GPS and the display device are in communication connection through a CAN (controller area network) bus;
wherein the PLC is used for receiving the locking command and sending out the locking control command,
the lifting frequency converter is used for executing a lifting control command of a tower crane hook;
the amplitude-variable frequency converter is used for executing a control command of amplitude change of a cargo boom of the tower crane;
the rotary frequency converter is used for executing a rotation control command of the tower type hoisting rotary platform;
the display device is used for parameter display and binding setting;
the Internet platform is used for collecting the field information of the tower crane and sending a control command to the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123037.9A CN111153332A (en) | 2020-02-27 | 2020-02-27 | Tower crane locking control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123037.9A CN111153332A (en) | 2020-02-27 | 2020-02-27 | Tower crane locking control method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111153332A true CN111153332A (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010123037.9A Pending CN111153332A (en) | 2020-02-27 | 2020-02-27 | Tower crane locking control method and system |
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| CN (1) | CN111153332A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012056435A1 (en) * | 2010-10-27 | 2012-05-03 | Gokkule Makina Muhendislik Taahhut Arge Sanayi Ve Ticaret Limited Sirketi | Telescopic tower crane and scaffold |
| CN103588103A (en) * | 2013-11-23 | 2014-02-19 | 湖北江汉建筑工程机械有限公司 | Multipurpose tower crane with double lifting hooks |
| CN103613016A (en) * | 2013-11-29 | 2014-03-05 | 中联重科股份有限公司 | Tower crane and method, device and system for lock control of tower crane |
| CN204162307U (en) * | 2014-09-29 | 2015-02-18 | 苏州汇川技术有限公司 | Tower machine control system |
| CN106429848A (en) * | 2016-12-16 | 2017-02-22 | 湖南中联重科智能技术有限公司 | Constant-speed cruise equipment, method, system for tower crane and tower crane |
| CN205973507U (en) * | 2016-08-29 | 2017-02-22 | 成都科达光电技术有限责任公司 | Watch -dog terminal of tower crane converter |
-
2020
- 2020-02-27 CN CN202010123037.9A patent/CN111153332A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012056435A1 (en) * | 2010-10-27 | 2012-05-03 | Gokkule Makina Muhendislik Taahhut Arge Sanayi Ve Ticaret Limited Sirketi | Telescopic tower crane and scaffold |
| CN103588103A (en) * | 2013-11-23 | 2014-02-19 | 湖北江汉建筑工程机械有限公司 | Multipurpose tower crane with double lifting hooks |
| CN103613016A (en) * | 2013-11-29 | 2014-03-05 | 中联重科股份有限公司 | Tower crane and method, device and system for lock control of tower crane |
| CN204162307U (en) * | 2014-09-29 | 2015-02-18 | 苏州汇川技术有限公司 | Tower machine control system |
| CN205973507U (en) * | 2016-08-29 | 2017-02-22 | 成都科达光电技术有限责任公司 | Watch -dog terminal of tower crane converter |
| CN106429848A (en) * | 2016-12-16 | 2017-02-22 | 湖南中联重科智能技术有限公司 | Constant-speed cruise equipment, method, system for tower crane and tower crane |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200515 |
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| RJ01 | Rejection of invention patent application after publication |