CN111874810A - Anti-swing system of bridge crane - Google Patents

Anti-swing system of bridge crane Download PDF

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Publication number
CN111874810A
CN111874810A CN202010868250.2A CN202010868250A CN111874810A CN 111874810 A CN111874810 A CN 111874810A CN 202010868250 A CN202010868250 A CN 202010868250A CN 111874810 A CN111874810 A CN 111874810A
Authority
CN
China
Prior art keywords
crane
hook
lifting
collector
lifting hook
Prior art date
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.)
Pending
Application number
CN202010868250.2A
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Chinese (zh)
Inventor
沈策
项建荣
丁晓平
夏乐
李军
施永昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Huaxin Mechanical & Electrical Engineering Co ltd
Original Assignee
Hangzhou Huaxin Mechanical & Electrical Engineering Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou Huaxin Mechanical & Electrical Engineering Co ltd filed Critical Hangzhou Huaxin Mechanical & Electrical Engineering Co ltd
Priority to CN202010868250.2A priority Critical patent/CN111874810A/en
Publication of CN111874810A publication Critical patent/CN111874810A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B66C13/16—Applications of indicating, registering, or weighing devices
    • 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
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • B66C13/063—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads electrical
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works

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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 an anti-swing system of a bridge crane, which comprises: the lifting hook position collector is used for detecting the position information of the lifting hook; the crane position collector is used for detecting the position information of the crane; and the processor is connected with the lifting hook position collector and the crane position collector. During specific work, the hook position collector and the crane position collector can send respective position information to the processor, and when the position of the hook exceeds a preset position range, the crane is controlled to adjust the position of the hook. When the lifting hook is lifted, when the lifting point of the lifting hook and the lifting rope are not on the same vertical line, the processor can automatically control the crane to move the position of the lifting hook, so that the problem that the lifting hook swings during lifting is avoided; in the hoisting process, the hook position collector and the crane position collector can also send position information of the hook position collector and the crane position collector to the processor in real time, and when the swing amplitude of the hook exceeds a preset swing range threshold value, the swing amplitude can be reduced by controlling the running speed of the crane.

Description

Anti-swing system of bridge crane
Technical Field
The invention relates to the technical field of bridge cranes, in particular to an anti-swing system of a bridge crane.
Background
The bridge crane mainly plays a role in hoisting and transporting, is key equipment for industrial production mechanization and automation, and is widely applied to places such as ports, warehouses, large-scale production workshops and the like.
When the bridge crane loads and unloads and lifts cargos, the flexible steel rope is adopted, so that the bridge crane is easy to swing due to inertia or external factors, the production operation efficiency is influenced, and potential safety hazards exist.
At present bridge crane prevents that the pendulum mainly has the manual work to prevent the pendulum and prevents the pendulum dual mode with machinery, wherein the manual work is prevented that the pendulum mainly relies on experience and the skill of controlling personnel, and it is great to receive the subjective influence of controlling personnel, has certain potential safety hazard, and the manual work is prevented that the pendulum is usually consuming time longer moreover, influences handling efficiency. In addition, the mechanical anti-swing is mainly controlled by increasing the resistance of the lifting hook, so that the mechanical anti-swing device only has a good anti-swing effect when running at low speed, is easy to wear equipment and increases the maintenance cost.
Therefore, how to provide a swing-proof system for a bridge crane to accurately and efficiently realize swing-proof is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
In view of this, the present invention provides an anti-swing system for a bridge crane, which can accurately and efficiently achieve anti-swing.
In order to achieve the purpose, the invention provides the following technical scheme:
a bridge crane anti-sway system comprising:
the lifting hook position collector is used for detecting the position information of the lifting hook;
the crane position collector is used for detecting the position information of the crane;
and the processor is connected with the lifting hook position collector and the crane position collector and used for controlling the crane to adjust the position of the lifting hook when the position of the lifting hook exceeds the range of the preset position.
Preferably, the processor comprises a central processing unit and a PLC, the central processing unit is connected with the PLC through a wireless communication transceiving module, and the PLC is connected with the lifting hook position collector and the crane position collector.
Preferably, the crane position collector comprises a bar code locator and a laser range finder, the bar code locator comprises a laser bar code reading head and a bar code strip, the bar code strip is arranged on a crane track of the cart, and the laser bar code reading head is arranged on the cart; the laser range finder is installed on the trolley, and the reflecting plate is installed on the cart travelling track.
Preferably, the hook position collector is an absolute value encoder, and the absolute value encoder is mounted on the hook drum.
Preferably, the wireless communication transceiver module is a 5G wireless communication module.
Preferably, a trolley motor for controlling the trolley to run is connected with the PLC through a trolley frequency converter, a cart motor for controlling the cart to run is connected with the PLC through a cart frequency converter, and a main lifting motor and an auxiliary lifting motor for controlling the lifting of the lifting hook are connected with the PLC through main lifting frequency converters and auxiliary lifting frequency converters.
Compared with the prior art, the technical scheme has the following advantages:
the invention provides a bridge crane anti-swing system, which comprises: the lifting hook position collector is used for detecting the position information of the lifting hook; the crane position collector is used for detecting the position information of the crane; and the processor is connected with the lifting hook position collector and the crane position collector. During specific work, the hook position collector and the crane position collector can send respective position information to the processor, and when the position of the hook exceeds a preset position range, the crane is controlled to adjust the position of the hook. When the lifting hook is lifted, when the lifting point of the lifting hook and the lifting rope are not on the same vertical line, the processor can automatically control the crane to move the position of the lifting hook, so that the problem that the lifting hook swings during lifting is avoided; in the hoisting process, the hook position collector and the crane position collector can also send position information of the hook position collector and the crane position collector to the processor in real time, and when the swing amplitude of the hook exceeds a preset swing range threshold value, the swing amplitude can be reduced by controlling the running speed of the crane. In addition, the data transmission speed can be improved through the 5G wireless communication technology, so that timely and accurate control is facilitated, and the problem of lag control caused by low data transmission speed is solved. In addition, remote anti-swing control can be realized through the three-level control system, and the safety of operation is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic block diagram of an anti-swing system of a bridge crane according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a positioning system of an anti-swing system of a bridge crane according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bridge crane according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic block diagram of an anti-swing system of a bridge crane according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a positioning system of an anti-swing system of a bridge crane according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a bridge crane according to an embodiment of the present invention.
The anti-swing system of the bridge crane provided by the embodiment of the invention comprises a positioning system and a processor, wherein the positioning system comprises a hook position collector for detecting the position information of a hook 4 and a crane position collector for detecting the position information of a crane; the processor is connected with the hook position collector and the crane position collector. During specific work, the hook position collector and the crane position collector can send respective position information to the processor, and when the position of the hook 4 exceeds a preset position range, the crane is controlled to adjust the position of the hook 4. Specifically, when the lifting point of the lifting hook 4 is not on the same vertical line with the lifting rope during lifting, the processor can automatically control the crane to move the position of the lifting hook 4, so that the problem that the lifting hook 4 swings during lifting is avoided; in the hoisting process, the hook position collector and the crane position collector can also send position information of the hook position collector and the crane position collector to the processor in real time, and when the swing amplitude of the hook exceeds a preset swing range threshold value, the swing amplitude can be reduced by controlling the running speed of the crane.
Specifically, the processor comprises a central processing unit and a PLC, the central processing unit is connected with the PLC through a wireless communication transceiving module, the wireless communication transceiving module is preferably a 5G wireless communication module, the information transmission rate and accuracy are improved, and the problem of hysteresis control caused by low data transmission speed is solved. PLC is connected with lifting hook position collector and crane position collector, and accessible Profibus bus connects. The central processing unit is a primary control system, can display the field condition and store historical data, can receive data sent by a secondary control system PLC, and can send a control instruction to the PLC through the wireless communication transceiving module. In addition, a bridge crane driver can control the bridge crane to operate through the central processing unit, so that remote control is realized, cab operation is replaced, the control safety and accuracy of the driver are improved, and the labor intensity is reduced.
Specifically, the crane comprises a main hoist and an auxiliary hoist, a cart 6 and a trolley 8, wherein the trolley 6 is used for controlling the lifting hook 4 to move along the Y direction, the cart 8 is used for controlling the trolley 6 to move along the X direction, the main hoist and the auxiliary hoist are used for controlling the lifting hook 4 to lift along the Z direction, the mark 1 in the attached figure 2 is the moving direction of the trolley, the mark 2 is the moving direction of the cart, the moving directions of the trolley and the trolley are mutually perpendicular, and the lifting hook 4 can move at any position in a plane through the cart 6 and the trolley 8. The crane position collector comprises a bar code locator and a laser range finder 7, the bar code locator comprises a laser bar code reading head 9 and a bar code strip 10, the bar code strip 10 is installed on a cart running track, the laser bar code reading head 9 is installed on a cart 6, when the cart 6 moves on the cart running track, the laser bar code reading head 9 scans the bar code strip 10 in real time, and further the position information of the cart 6 is determined, and is transmitted to the PLC through a Profibus bus by a built-in encoder in an analog quantity signal; laser range finder 7 installs on dolly 8, installs reflecting plate 5 on the cart driving track, and laser range finder 7 passes through the little car 8 positional information of real-time collection in analog signal transmission to PLC with the Profibus bus.
In addition, the lifting hook position collector is absolute value encoder 11, and absolute value encoder 11 installs on lifting hook reel 3, passes through the Profibus bus with the position information of lifting hook 4 in analog quantity signal transmission to PLC. The bar code locator, the laser distance measuring device 7 and the absolute value encoder 11 are high-precision and rapid sensors, can meet the requirement of real-time acquisition, and cannot generate errors caused by inertia and other problems.
In addition, a trolley motor for controlling the operation of the trolley 8 is connected with the PLC through a trolley frequency converter, a cart motor for controlling the operation of the cart 6 is connected with the PLC through a cart frequency converter, and a main lifting motor and an auxiliary lifting motor for controlling the lifting of the lifting hook 4 are connected with the PLC through a main lifting frequency converter and an auxiliary lifting frequency converter. The trolley frequency converter, the cart frequency converter and the main and auxiliary lifting frequency converters are three-level control systems and are mainly used for controlling the operation of corresponding motors, namely adjusting the position of the lifting hook 4. Therefore, remote anti-swing control can be realized through the three-level control system, and the safety of operation is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The anti-swing system of the bridge crane provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (6)

1. An anti-swing system for a bridge crane, comprising:
the lifting hook position collector is used for detecting the position information of the lifting hook;
the crane position collector is used for detecting the position information of the crane;
and the processor is connected with the lifting hook position collector and the crane position collector and used for controlling the crane to adjust the position of the lifting hook when the position of the lifting hook exceeds the range of the preset position.
2. The anti-swing system of a bridge crane according to claim 1, wherein the processor comprises a central processing unit and a PLC, the central processing unit is connected with the PLC through a wireless communication transceiver module, and the PLC is connected with the hook position collector and the crane position collector.
3. The anti-swing system of a bridge crane according to claim 2, wherein the crane position collector comprises a bar code locator and a laser range finder, the bar code locator comprises a laser bar code reading head and a bar code strip, the bar code strip is mounted on a crane track, and the laser bar code reading head is mounted on a crane; the laser range finder is installed on the trolley, and the reflecting plate is installed on the cart travelling track.
4. The anti-swing system of bridge crane according to claim 3, wherein the hook position collector is an absolute value encoder mounted on a hook drum.
5. The anti-swing system of bridge crane according to claim 2, wherein the wireless communication transceiver module is a 5G wireless communication module.
6. The anti-swing system of a bridge crane according to claim 3, wherein a trolley motor for controlling the trolley to run is connected to the PLC through a trolley frequency converter, a cart motor for controlling the cart to run is connected to the PLC through a cart frequency converter, and a main lifting motor and an auxiliary lifting motor for controlling the lifting hook to lift are connected to the PLC through a main lifting frequency converter and an auxiliary lifting frequency converter.
CN202010868250.2A 2020-08-26 2020-08-26 Anti-swing system of bridge crane Pending CN111874810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010868250.2A CN111874810A (en) 2020-08-26 2020-08-26 Anti-swing system of bridge crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010868250.2A CN111874810A (en) 2020-08-26 2020-08-26 Anti-swing system of bridge crane

Publications (1)

Publication Number Publication Date
CN111874810A true CN111874810A (en) 2020-11-03

Family

ID=73199724

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010868250.2A Pending CN111874810A (en) 2020-08-26 2020-08-26 Anti-swing system of bridge crane

Country Status (1)

Country Link
CN (1) CN111874810A (en)

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