CN213505638U - Bridge crane monitoring system - Google Patents
Bridge crane monitoring system Download PDFInfo
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- CN213505638U CN213505638U CN202021041218.9U CN202021041218U CN213505638U CN 213505638 U CN213505638 U CN 213505638U CN 202021041218 U CN202021041218 U CN 202021041218U CN 213505638 U CN213505638 U CN 213505638U
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Abstract
The utility model discloses a bridge crane monitoring system. Comprises a cart moving mechanism for realizing longitudinal movement, a trolley moving mechanism for realizing transverse movement and a lifting mechanism for realizing lifting; the system comprises a PLC central processing unit, a sensor, an input module, a remote communication module and an upper computer. The utility model discloses divide into remote signaling module and receiving module with the telecommunication module, PLC handles the information of input module through the procedure of having compiled, simultaneously with information display to the host computer, the host computer updates current picture information every second, stores historical information, the running state of a plurality of bridge crane of visual reflection makes each bridge crane concentrate on showing on a picture, can directly know the running state of each bridge crane, long-term in operation, total operating duration etc. and carry out data acquisition at the remote end; the monitoring system is attached with an automatic alarm function, and the position data of the bridge crane is corrected in time through the proximity switch of the sensor, so that long-time movement error accumulation is prevented.
Description
Technical Field
The utility model belongs to the technical field of operation safety monitoring, a monitoring system, especially bridge crane's operation process integration is kept watch on is related to.
Background
The hoisting machine is a space transportation device and mainly used for completing the displacement of heavy objects. It can reduce labor intensity and improve labor productivity. The hoisting machinery is an indispensable component of modern production. The bridge crane is an important tool and equipment for realizing mechanization and automation of the production process in modern industrial production and hoisting transportation. Therefore, the bridge crane is widely applied to indoor and outdoor industrial and mining enterprises, steel chemical industry, railway transportation, ports and docks, logistics turnover and other departments and places.
Taking a bridge crane for logistics turnover in the building industry as an example, in the prior art, the bridge crane is mainly used for manually controlling the bridge crane to travel to a specified place and then carrying out the displacement operation of materials. The whole operation process can not be recorded, and the bridge crane needs a large space range, so the position is high, operators lack effectiveness and reliability of related information, maintenance can not be carried out according to the service time and the working condition of the equipment, and the equipment can not be fed back at the first time when the equipment breaks down.
Disclosure of Invention
The utility model discloses the purpose is not enough to provide a bridge crane monitoring system to prior art. The utility model discloses framework is simple, degree of automation is high, the good reliability, can real-time supervision factory in all tracks on bridge crane's operational position, total time of operation and operation developments. Only by opening the upper machine configuration software, the operation interface can display the positions of all the devices and the total operation time, and when the operation time exceeds the maintenance time required by the operation of the devices, a warning mark can appear.
The utility model discloses the system realizes through following technical scheme:
the bridge crane monitoring system comprises a bridge crane monitoring system, wherein the bridge crane monitoring system comprises a cart moving mechanism for realizing longitudinal motion, a trolley moving mechanism for realizing transverse motion and a lifting mechanism for realizing lifting; the method is characterized in that: the monitoring system comprises a PLC central processing unit, a sensor, an input module, a remote communication module and an upper computer;
the sensors are proximity sensors and are arranged on each track of the bridge crane, and when the bridge crane moves to the proximity sensors, the sensors respond and transmit signals to the PLC central processing unit;
the input module converts the switching value signal on the remote communication module into a low-voltage input signal for processing by the PLC central processing unit;
the remote communication module is an IO switching value signal acquisition and transmission module, is divided into a signal sending end and a signal receiving end, communicates by means of wireless remote radio, and transmits signals to the PLC central processing unit by connecting with the input end;
the PLC central processing unit receives the switching signals of the remote communication module in real time and processes the data, obtains the running distance in the time period by judging the running time of the traveling mechanism and the speed of each moving mechanism in the time period, and reflects the real-time data to the upper computer;
the upper computer displays and reminds the position, the running time, the fault alarm and the maintenance of the bridge crane; configuration is carried out by adopting configuration king 6.55 monitoring configuration software, the running environment is a PC end or any equipment compatible with a PC system, and the running environment is connected with the PLC central processing unit through PORFNET Ethernet.
Realize longitudinal movement's big car travel mechanism, realize transverse movement's dolly travel mechanism and realize the hoist mechanism's of lift bridge crane has many parallel operation, and each bridge crane carries out real-time acquisition to corresponding data through independent sensor, remote communication module separately, passes to the host computer after PLC central processing unit data processing and shows, realizes that a plurality of bridge crane operation are kept watch on.
And the PLC central processing unit corrects and sets the corresponding position data of the bridge crane according to the response of each proximity switch, so that the movement error accumulation of the bridge crane is prevented.
The PLC central processing unit is a programmable control system, a Siemens CPU314-1 AF is adopted, the on-off condition of each bridge crane displacement motor in the input module is judged by writing a program in advance, the running displacement of each traveling mechanism of the bridge crane is calculated by the on-off of an input electric signal, and the calculation formula is as follows: current position X0+ Low speed running speed V0X low speed on time t0+ high speed running speed V1X high speed on time t1(ii) a Wherein, t is determined0The time after more than 2 seconds is the high-speed on time, and t is judged1The time before < 2 seconds is the low speed on time.
The utility model discloses utilize PLC programmable control system as major control system, carry out real-time acquisition to corresponding data through each remote communication module, upload to the host computer demonstration after PLC data processing, realize a plurality of bridge crane operation supervision of factory's within range. The monitoring system also comprises a power distribution cabinet which mainly supplies power for the PLC central processing unit, the input module, the upper computer and the sensor.
The utility model discloses PLC central processing unit adopts medium-sized PLC series CPU module, receives a plurality of bridge crane's switching signal in real time and carries out data processing to reflect real-time data to the host computer. And the PLC judges the running time of the traveling mechanism and calculates the running distance in the time period by the speed of the bridge crane in the time period. Meanwhile, the PLC sets the bridge crane position data to the position of the proximity switch according to the response of the proximity switch, and long-time movement error accumulation is prevented.
The utility model discloses the remote communication module is IO switching value signal acquisition transmission module, divide into signal transmission end and signal receiving terminal, relies on wireless LORA (remote radio promptly) to communicate, through inserting to PLC transmission signal with the input.
The utility model discloses the host computer adopts configuration king 6.55 control configuration software to carry out the configuration, and the operational environment is PC end or any compatible PC system's equipment, is connected with PLC central processing unit through PORFNET ethernet, and this system can let operating personnel know the position of every bridge crane more conveniently, operating duration, malfunction alerting, functions such as bridge crane overhauls.
The utility model discloses divide into remote signal transmission module and remote signal receiving module with the remote communication module, remote signal transmission module is connected with the current transformer of motor that moves. When the bridge crane enters the running state, the remote signal sending module senses the electric signal, converts the electric signal into a digital signal and sends the digital signal to the remote signal receiving module in a radio transmission mode. Meanwhile, the remote signal receiving module is installed on the PLC input module in a centralized mode, converts received digital signals and transmits the digital signals to the PLC input module in a low-voltage electric signal on-off mode. The PLC processes the information of the input module through a programmed program, simultaneously displays the information on the upper computer, and the upper computer updates the current picture information every second, stores historical information and visually reflects the running states of the bridge cranes.
Compared with the prior art, the utility model discloses the beneficial effect who has is: the system has the advantages that convenience is realized, the upper computer processes information transmitted by the PLC and integrates and displays the information into an overall operation interface, all bridge cranes in the whole plant area are intensively displayed on one picture, the operation state, the working time, the total operation time and the like of each bridge crane can be directly known, and data collection is carried out at a remote end; the safety and monitoring system has an automatic alarm function, and when the equipment reaches a set value required to be maintained, an alarm signal is sent out to inform a maintainer to check.
Drawings
FIG. 1 is a schematic diagram of a bridge crane monitoring system module;
FIG. 2 is a schematic block diagram of a bridge crane monitoring system;
FIG. 3 is a flow chart of the operation of the bridge crane monitoring system;
FIG. 4 is a view of a bridge crane;
fig. 5 is a general operation picture of the bridge crane.
In the figure, 1 is a small vehicle moving mechanism, 2 is a large vehicle moving mechanism, and 3 is a lifting mechanism.
Detailed Description
The present invention will be further described with reference to the following embodiments, which are intended to illustrate the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the scope of the present invention.
With reference to the attached drawings.
The utility model discloses bridge crane monitoring system main control object is bridge crane cart travel mechanism 2, dolly travel mechanism 1, hoist mechanism 3. The utility model discloses control system can realize the monitoring to many parallel operation's bridge crane simultaneously.
The cart moving mechanism 2 is composed of a cart motor, a transmission shaft, a speed reducer, wheels, a brake and the like, and controls the bridge crane to move longitudinally within the range of a trolley line.
The trolley moving mechanism 1 is composed of a trolley motor, a brake, a coupling, a reducer, wheels and the like. The trolley motor drives the trolley driving wheel through the speed reducer to drag the trolley to move along the transverse width direction of the workshop.
The lifting mechanism 3 is composed of a lifting motor, a reducer, a winding drum, a brake and the like. The hoisting motor is connected with the reducer through the coupler and the brake wheel, the output shaft of the reducer is connected with the winding drum for winding the steel wire rope, the other end of the steel wire rope is provided with the lifting hook, and when the winding drum rotates, the lifting hook ascends or descends along with the winding or the unwinding of the steel wire rope on the winding drum.
And a plurality of groups of fixed proximity sensors are also arranged on the running tracks of the cart moving mechanism 2, the trolley moving mechanism 1 and the lifting mechanism 3 of the bridge crane.
In a specific embodiment, the bridge crane monitoring system comprises: switch board, PLC central processing unit, sensor, input module, remote communication module, host computer.
The upper computer is connected with the lower computer through PORFNET Ethernet by adopting a configuration king 6.55 and is used for receiving signals of a PLC control system of the lower computer and reflecting various parameters in the running process of the bridge crane. Any other system capable of reading and configuring the data signals of the lower computer can be used, and the data signals can be displayed on a PC or equipment compatible with the PC system according to different actual requirements as long as the same technical effect can be achieved.
The input module is a digital input module, the digital input module adopts Siemens 6ES7321-1BL00-0AA0 series, and mainly converts a switching signal detected by the sensor and a switching signal of the remote transmission module into a low-voltage input signal for processing by the PLC central processing unit.
The power distribution cabinet supplies power to the PLC central processing unit, the input module, the sensor, the remote transmission module, the upper computer and the like.
Adopt proximity sensor response bridge crane position, mainly used bridge crane is at the compulsory reset of host computer, because long-time the use can lead to displacement and the actual displacement on the host computer to produce the error, so place this sensor and be used for correcting.
The remote communication module adopts an IO switch connected with a signal acquisition and transmission module, communication is carried out by means of LORA (remote radio), a sub machine end is connected with current transformers of each traveling mechanism of the bridge crane to sense whether the sub machine end is connected or not, signals are sent, and a main machine end receives the signals and then transmits the signals to the PLC for data processing. The purpose of using the IO switching value signal acquisition and transmission module is to calculate the traveling distance of the bridge crane through the on-off time of the motor running signal. In order to achieve the purpose, a wireless wifi communication module, a GPS positioning module and the like can be used for directly or indirectly obtaining a remote communication module of the position of the bridge crane.
The PLC central processing unit is a Siemens CPU314-1 AF, judges the on-off condition of each bridge crane displacement motor in the input module through a pre-written program, and calculates the running displacement of each traveling mechanism of the bridge crane through the on-off of an input electric signal, wherein the calculation formula is as follows: current position X0+ Low speed running speed V0X low speed on time t0+ high speed running speed V1X high speed on time t1. Wherein, t is determined0The time after more than 2 seconds is the high-speed on time, and t is judged1The time before < 2 seconds is the low speed on time.
The utility model discloses monitoring system control operation includes following step:
clicking an interface icon of an operating system, and entering a configuration king project manager interface.
And clicking the engineering project of the bridge crane operation monitoring system corresponding to the engineering manager interface, and then clicking an 'operation' button to enter a main picture of the bridge crane monitoring system.
Clicking on the total running picture in the home picture is shown in fig. 5. The upper right corner displays the current running date and time of the system; the system displays the positions and the running states of the multiple bridge cranes in the factory building in a system picture, has the functions of fault alarm and overhaul alarm, and realizes the real-time monitoring of the running state of the production line.
The total operation picture displays a plan view of the positions of all bridge cranes in the plant area, the position of a single bridge crane is represented by a horizontal coordinate and a vertical coordinate at the actual position of each span, the lifting mechanism is in an operation state when the trolley is displayed in green, and the lifting mechanism is in a stop state when the trolley is displayed in red. The running time of the traveling systems is positioned right below, and the running time of each traveling system of the bridge crane from the last overhaul to the present is displayed, and the unit is time. The maintenance time reset button is positioned at the lower right side, the operation time exceeds 100 hours, the maintenance indication is displayed in red, the machine needs to be stopped for maintenance, and the machine is reset and counted again after the reset button is pressed.
The utility model discloses the control principle is seen in figure 2: the remote communication module is divided into a remote signal sending module and a remote signal receiving module, and the remote signal sending module is connected with a current transformer of the traveling motor. When the bridge crane enters the running state, the remote signal sending module senses the electric signal, converts the electric signal into a digital signal and sends the digital signal to the remote signal receiving module in a radio transmission mode. Meanwhile, the remote signal receiving module is installed on the PLC input module in a centralized mode, converts received digital signals and transmits the digital signals to the PLC input module in a low-voltage electric signal on-off mode. The PLC processes the information of the input module through a programmed program, simultaneously displays the information on the upper computer, and the upper computer updates the current picture information every second, stores historical information and visually reflects the running states of the bridge cranes.
The monitoring setting and the flow of the utility model are shown in figure 3; the following describes an example of a flow when the equipment is repaired or when the equipment is out of order.
Step 1: and starting the system, and automatically acquiring the running time of the bridge crane in running.
Step 2: and setting the maintenance interval time of the bridge crane, and giving an alarm by the system after the service time of the bridge crane reaches a set value.
And step 3: during the system starting, every action of each structure of the bridge crane is recorded by the system, the set time is compared every second, and whether the running time exceeds the maintenance time or not is compared.
And 4, step 4: if the running time does not exceed the maintenance time, the system continues to record the time, and if the running time exceeds the maintenance time, the system gives an alarm and waits for the running time to be reset after an operator overhauls the equipment.
And 5: and repeating the steps 3-4.
Claims (4)
1. A bridge crane monitoring system, the said bridge crane includes realizing the longitudinal movement cart travel mechanism, realizing the lateral movement dolly travel mechanism and realizing the lifting mechanism of the lift; the method is characterized in that: the monitoring system comprises a PLC central processing unit, a sensor, an input module, a remote communication module and an upper computer;
the sensors are proximity sensors and are arranged on each track of the bridge crane, and when the bridge crane moves to the proximity sensors, the sensors respond and transmit signals to the PLC central processing unit;
the input module converts the switching value signal on the remote communication module into a low-voltage input signal for processing by the PLC central processing unit;
the remote communication module is an IO switching value signal acquisition and transmission module, is divided into a signal sending end and a signal receiving end, communicates by means of wireless remote radio, and transmits signals to the PLC central processing unit by connecting with the input end;
the PLC central processing unit receives a switching signal of the remote communication module in real time, obtains a running distance in the time period by judging the running time of the traveling mechanism and the speed of each moving mechanism in the time period, and reflects real-time data to the upper computer;
and the upper computer displays and reminds the position, the running time, the fault alarm and the maintenance of the bridge crane.
2. The bridge crane monitoring system of claim 1, wherein: the bridge cranes of the cart traveling mechanism for realizing longitudinal movement, the trolley traveling mechanism for realizing transverse movement and the lifting mechanism for realizing lifting have a plurality of parallel running, each bridge crane acquires corresponding data in real time through a sensor and a remote communication module which are independent of each other, and the data are processed by a PLC central processing unit and then are uploaded to an upper computer to be displayed for monitoring the running of the bridge cranes.
3. The bridge crane monitoring system of claim 1, wherein: and the PLC central processing unit corrects and sets the corresponding position data of the bridge crane according to the response of each proximity switch, so that the movement error accumulation of the bridge crane is prevented.
4. The bridge crane monitoring system of claim 1, wherein: the PLC central processing unit is a Siemens CPU314-1 AF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021041218.9U CN213505638U (en) | 2020-06-09 | 2020-06-09 | Bridge crane monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021041218.9U CN213505638U (en) | 2020-06-09 | 2020-06-09 | Bridge crane monitoring system |
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| Publication Number | Publication Date |
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| CN213505638U true CN213505638U (en) | 2021-06-22 |
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| CN202021041218.9U Active CN213505638U (en) | 2020-06-09 | 2020-06-09 | Bridge crane monitoring system |
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| CN (1) | CN213505638U (en) |
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