CN211282658U - Comprehensive protection device for rubber belt conveyor - Google Patents
Comprehensive protection device for rubber belt conveyor Download PDFInfo
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- CN211282658U CN211282658U CN201922337937.9U CN201922337937U CN211282658U CN 211282658 U CN211282658 U CN 211282658U CN 201922337937 U CN201922337937 U CN 201922337937U CN 211282658 U CN211282658 U CN 211282658U
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Abstract
The utility model discloses a rubber belt conveyor integrated protection device, including sensor group, programmable logic controller, display screen, motor and host computer, sensor group is including off tracking switch, speed switch, stay cord switch and sticky tape tear the switch, off tracking switch, speed switch, stay cord switch, sticky tape tear switch, display screen and host computer are connected with programmable logic controller respectively. Carry out real time monitoring to rubber belt conveyor through the sensor, can in time discover fault location and discernment trouble kind, upload the host computer with relevant signal, the staff just can know the trouble condition in the scene. The programmable logic controller also transmits signals to a motor control loop and an upper computer of the rubber belt conveyor through a switching value/analog quantity output module, so that the motor can be controlled to stop immediately, further damage of equipment, serious accidents such as casualties and the like are avoided, and corresponding economic loss is reduced.
Description
Technical Field
The utility model particularly relates to a rubber belt conveyor integrated protection device.
Background
The rubber belt conveyor has strong continuous conveying capacity and high conveying efficiency, is easy to realize automatic control, and is common mechanical equipment in a material conveying system. The belt conveyor is generally installed in remote mines, factories and other places, and the conveying line is long, and some lengths can reach several kilometers, so that more than one sensor for equipment protection, such as a deviation switch and a pull-cord switch, is arranged on one side or both sides of the belt conveyor. In the traditional protection mode, the switches of the same type are connected in series and are connected into a motor control loop and a DCS (distributed control system), when a fault occurs, the fault position cannot be effectively distinguished and timely processed, a large amount of manpower and time are wasted, and the normal production is greatly influenced; if each signal is respectively accessed into the DCS system, the fault position can be effectively judged, but a large number of control cables are needed, a large number of DCS system modules are added, and the economic cost is too high.
Along with the development of industry in recent years, the use amount of the belt conveyor is larger and larger, the application range of the belt conveyor is wider and wider, and various accidents are more and more frequent. Therefore, a comprehensive protection device with safety, reliability, simple maintenance, economy and high intelligence is needed to prevent and treat various accidents of the rubber belt conveyor.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a rubber belt conveyor integrated protection device carries out real time monitoring to rubber belt conveyor, can in time discover fault location and discernment trouble kind, safe and reliable, maintain portably, economy saves.
The utility model provides a pair of rubber belt conveyor integrated protection device, including sensor group, programmable logic controller, display screen, motor and host computer, sensor group is including the switch of running deviation, speed switch, stay cord switch and sticky tape tear the switch, off tracking switch, speed switch, stay cord switch, sticky tape tear switch, display screen and host computer are connected with programmable logic controller respectively.
Further, the programmable logic controller comprises a CPU mainboard, a UPS (uninterrupted power supply) module, an input module and a communication module, the sensor group is connected with the input module, the UPS module, the input module and the communication module are respectively connected with the CPU mainboard, the display screen is connected with the CPU mainboard, and the communication module is connected with the upper computer.
Further, the device also comprises a low-voltage electrical cabinet, the programmable logic controller also comprises an output module, the output module is respectively connected with the low-voltage electrical cabinet and the CPU mainboard, and the low-voltage electrical cabinet is connected with the motor.
Furthermore, the input module comprises a digital quantity input module and an analog quantity input module, the deviation switch, the speed switch and the pull rope switch are respectively connected with the digital quantity input module, the adhesive tape tearing switch is respectively connected with the digital quantity input module and the analog quantity input module, and the digital quantity input module and the analog quantity input module are respectively connected with the CPU mainboard.
Further, the communication module is one of an RS485 interface, an RS232 interface, and an industrial ethernet interface.
Further, the display screen adopts an HMI touch screen.
Further, the programmable logic controller employed the SIMATIC S7-1200 controller.
The utility model has the advantages that:
the utility model provides a pair of rubber belt conveyor integrated protection device carries out real time monitoring to rubber belt conveyor through the sensor, can in time discover fault location and discernment trouble kind, with the host computer of uploading to relevant signal, the staff just can know the trouble condition to the scene. The programmable logic controller also transmits signals to a motor control loop and an upper computer of the rubber belt conveyor through a switching value/analog quantity output module, can control the motor to stop immediately, avoids further damage of equipment, casualties and other major accidents, reduces corresponding economic loss, and is safe, reliable, simple and convenient to maintain, economic and economical.
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 embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of a comprehensive protection device for a belt conveyor according to a first embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
Referring to fig. 1, a first embodiment of the present invention provides an integrated protection device for a belt conveyor, which includes a sensor set, a programmable logic controller, a display screen, a motor, and an upper computer (DCS system), wherein the sensor set includes a deviation switch, a speed switch, a pull switch, and a rubber belt tearing switch, and the deviation switch, the speed switch, the pull switch, the rubber belt tearing switch, the display screen, and the upper computer are respectively connected to the programmable logic controller. The programmable logic controller is a core component of the whole protection device, all remote signaling and remote control signals are transmitted and controlled by the programmable logic controller, and the programmable logic controller receives monitoring values and signals acquired by the sensor group in real time and sends the received monitoring values and signals to the upper computer. The programmable logic controller employs the Siemens SIMATIC S7-1200 controller. The programmable logic controller and the display screen can be arranged in an electric control box, and necessary circuit breakers, relays, wiring terminals and the like can be arranged in the electric control box. The display screen adopts an HMI touch screen. The running state of the rubber belt conveyor and the monitoring signals of the sensors can be displayed by matching with a programmable logic controller and programming of configuration software, and the fault type and the fault position can be displayed when a fault occurs. No additional button is needed, and no additional wiring is needed. The comprehensive protection device of the rubber belt conveyor is arranged beside the rubber belt conveyor, a large number of control cables and DCS system modules are saved, and the economic benefit is obvious.
The programmable logic controller comprises a CPU mainboard, a UPS module, an input module and a communication module, the sensor group is connected with the input module, the UPS module, the input module and the communication module are respectively connected with the CPU mainboard, the display screen is connected with the CPU mainboard, and the communication module is connected with an upper computer. The protection device further comprises a low-voltage electrical cabinet, the programmable logic controller further comprises an output module, the output module is respectively connected with the low-voltage electrical cabinet and the CPU mainboard, and the low-voltage electrical cabinet is connected with the motor. The input module comprises a Digital Input (DI) module and an Analog Input (AI) module, the deviation switch, the speed switch and the pull switch are respectively connected with the digital input module, the adhesive tape tearing switch is respectively connected with the digital input module and the analog input module, and the digital input module and the analog input module are respectively connected with the CPU mainboard.
A plurality of deviation switches are arranged on one rubber belt conveyor to monitor the rubber belt of the conveyor, and one pair is arranged every 50 m. The deviation switch can realize two-stage action, wherein the first-stage action is used for alarming, and the second-stage action is used for stopping and alarming. When the rubber belt of the conveyor deviates, the rubber belt touches the vertical roller of the switch, and when the vertical roller deflects to a first-level action angle, the first-level switch acts and outputs a signal to alarm. If the adhesive tape continues to deviate, the secondary switch sends a stop signal and simultaneously sends an alarm signal when the vertical roller of the switch reaches a secondary action angle. The first-stage action alarm signal, the second-stage action stop signal and the alarm signal are passive dry contact points and are connected to a DI module of the programmable logic controller through a physical hard wire.
The speed switch is arranged beside the driven shaft, and the driven shaft is provided with a detection sheet. When the motor runs, the driven shaft is driven to rotate through the transmission device, and the detection piece on the driven shaft also rotates along with the driven shaft. The speed switch receives the uniformly spaced pulse signals of the detection piece. When the equipment has the faults of locked rotation, shaft breakage, belt slippage and falling of a transmission belt, the driven shaft rotates slowly or stops rotating, the detection sheet rotates slowly or stops rotating along with the driven shaft, and the speed switch cannot receive the pulse signals at the uniform intervals of the detection sheet. The speed switch is switched from a closed state to an open state, an alarm signal or a jump stop signal of the passive dry contact point is output and transmitted to the programmable logic device, the CPU mainboard sends the alarm signal to the upper computer and the display screen, if the alarm signal is the jump stop signal, the CPU mainboard controls the motor to stop, and feeds the stop signal back to the upper computer, so that the purpose of protecting equipment is achieved.
The pull-cord switch is arranged on the machine frame at one side or two sides of the rubber belt conveyor, and the switch is connected by a steel wire rope along two sides of the conveyor. One rubber belt conveyor is provided with a plurality of pull-cord switches, and one or a pair of pull-cord switches is/are arranged every 30-50 m. When the conveyer belt equipment has an emergency accident, the steel wire rope is pulled at any position along the line on site, the steel wire rope pulls the driving arm to rotate, the transmission shaft drives the torsion spring to enable the precision cam to displace, and the microswitch is driven to send out a signal. The output of the pull-cord switch is a passive dry contact signal and is connected to a DI module of the programmable logic controller through a physical hard wire, and the CPU mainboard transmits the signal to a display screen for display and transmits the signal to an upper computer.
The longitudinal tearing signal of the tape tearing switch is obtained by a sensor arranged below the upper adhesive tape. The system is provided with a passive dry contact alarm signal and a deformation signal of analog quantity, and is respectively connected to a DI module and an AI module of a programmable logic controller through physical hard wires. When an accident occurs, the adhesive tape tearing switch triggers the programmable logic controller to act, and the controller transmits a signal to a motor control loop of the adhesive tape conveyor through the output module, so that the adhesive tape conveyor immediately trips to stop the motor, and further damage to equipment is avoided.
The communication module is one of an RS485 interface, an RS232 interface and an industrial Ethernet interface. If the communication module adopts an RS485 interface or an RS232 interface, a communication mode of Profibus DP and Modbus is adopted; when the industrial Ethernet interface is adopted, the equipment is connected to equipment supporting the interface protocol in a Modbus TCP/IP or Profinet communication mode.
In implementation, the working principle of the comprehensive protection device of the belt conveyor is as follows: the deviation switch, the speed switch, the pull-cord switch and the adhesive tape tearing switch connect the sensing signals to an input module of the programmable logic controller in a physical hard-wired mode through a control cable. The ready and running switching value signal from the motor control of the belt conveyor of the low-voltage electrical cabinet is connected to the input module of the programmable logic controller in a physical hard-wired mode through a control cable. When any sensor of the rubber belt conveyor generates an alarm signal, the programmable logic controller uploads the signal to an upper computer (DCS) through a communication interface of the programmable logic controller in a communication mode, a central control operator can monitor the alarm signal in real time, and equipment accidents are prevented from further aggravating. When any sensor of the rubber belt conveyor sends out a jump stop signal, the rubber belt conveyor needs to be stopped immediately. At the moment, the programmable logic controller connects the tripping switching value signal to a tripping circuit of a motor control circuit in a low-voltage electrical cabinet in a physical hard wiring mode through a control cable through a signal output module of the programmable logic controller, and the motor is immediately tripped. Meanwhile, the jump stop signal is uploaded to an upper computer in a communication mode, fault information is recorded in time, and a central control operator is informed.
A plurality of sensors of the integrated protection device of the rubber belt conveyor are addressed and unique in a programmable logic controller, the sensors monitor the rubber belt conveyor in real time, the sensors transmit acquired signals to the programmable logic controller, once a fault occurs, the fault position and the fault type can be immediately identified, related signals are uploaded to a DCS system, and an operator can monitor signals fed back by the sensors in a central control room in real time. When an accident occurs, the sensor triggers the programmable logic controller to act, and the programmable logic controller transmits signals to a motor control loop and a DCS (distributed control system) of the rubber belt conveyor through the switching value/analog quantity output module, so that the rubber belt conveyor immediately trips to stop the motor and informs an operator, further damage to equipment is avoided, and corresponding economic loss is reduced. By utilizing the man-machine interaction module, a user does not need to manually check fault reasons one by one on site, the fault type and the fault position can be checked on a liquid crystal display screen of the comprehensive protection device of the rubber belt conveyor, a fault signal is transmitted to a DCS (distributed control system) in a communication mode, and an operator can judge the fault reasons and the fault positions at the first time in a central control mode.
Here, it is to be noted that the functions, algorithms, methods, etc. related to the present invention are only conventional adaptive applications of the prior art. Therefore, the present invention is an improvement of the prior art, and the substantial connection relationship between hardware is not directed to the function, algorithm, and method itself, that is, the present invention relates to a little function, algorithm, and method, but does not include the improvement of the function, algorithm, and method itself. The utility model discloses to the description of function, algorithm, method, be for better explanation the utility model discloses to better understanding the utility model discloses.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The utility model provides a comprehensive protection device of rubber belt conveyor, its characterized in that, includes sensor group, programmable logic controller, display screen, motor and host computer, sensor group is including off tracking switch, speed switch, stay cord switch and sticky tape tear switch, off tracking switch, speed switch, stay cord switch, sticky tape tear switch, display screen and host computer are connected with programmable logic controller respectively.
2. The integrated protection device of claim 1, wherein the programmable logic controller comprises a CPU board, a UPS uninterruptible power supply module, an input module, and a communication module, the sensor group is connected to the input module, the UPS uninterruptible power supply module, the input module, the communication module, and the display screen are respectively connected to the CPU board, and the communication module is connected to the upper computer.
3. The integrated protection device of claim 2, further comprising a low-voltage electrical cabinet, wherein the programmable logic controller further comprises an output module, the output module is respectively connected with the low-voltage electrical cabinet and the CPU motherboard, and the low-voltage electrical cabinet is connected with the motor.
4. The integrated protection device of claim 2, wherein the input module comprises a digital input module and an analog input module, the off tracking switch, the speed switch and the pull switch are respectively connected with the digital input module, the tape tearing switch is respectively connected with the digital input module and the analog input module, and the digital input module and the analog input module are respectively connected with the CPU main board.
5. The integrated protection device of claim 2, wherein the communication module is one of an RS485 interface, an RS232 interface and an industrial ethernet interface.
6. The integrated protection device for a belt conveyor of claim 2, wherein the display screen is an HMI touch screen.
7. The integrated protection device of a belt conveyor as claimed in claim 1, wherein the programmable logic controller is a SIMATIC S7-1200 controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922337937.9U CN211282658U (en) | 2019-12-23 | 2019-12-23 | Comprehensive protection device for rubber belt conveyor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922337937.9U CN211282658U (en) | 2019-12-23 | 2019-12-23 | Comprehensive protection device for rubber belt conveyor |
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| CN211282658U true CN211282658U (en) | 2020-08-18 |
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| CN201922337937.9U Active CN211282658U (en) | 2019-12-23 | 2019-12-23 | Comprehensive protection device for rubber belt conveyor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124899A (en) * | 2020-08-19 | 2020-12-25 | 河钢股份有限公司承德分公司 | Method and system for rapidly judging and processing shutdown fault of belt conveyor |
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2019
- 2019-12-23 CN CN201922337937.9U patent/CN211282658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124899A (en) * | 2020-08-19 | 2020-12-25 | 河钢股份有限公司承德分公司 | Method and system for rapidly judging and processing shutdown fault of belt conveyor |
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Effective date of registration: 20220523 Address after: 100000 room 1201, Ganjiakou building, No. 17, Sanlihe Road, Haidian District, Beijing Patentee after: Sinoma overseas technology development Co.,Ltd. Address before: 100044 floor 12, No.17, Sanlihe Road, Haidian District, Beijing Patentee before: SINOMA OVERSEAS DEVELOPMENT CO.,LTD. |