Wireless interlocking device for port machinery and belt conveying system

Abstract

The utility model relates to the technical field of port machinery equipment communication, in particular to a wireless interlocking device for a port machinery and a belt conveying system, which comprises a 2P circuit breaker, a power adapter, a wireless data radio station, a PLC (programmable logic controller) module and a wiring terminal. The 2P circuit breaker is connected with the power adapter, the power adapter is connected with the wireless data transmission radio station and the PLC module, and the PLC module is connected with the wiring terminal; according to the utility model, the port machinery is connected with the belt conveyor in a wireless communication manner, so that the problems caused by wired communication are avoided, and the problems of aging of wired lines and high maintenance difficulty are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of communication devices for port machinery equipment, and specifically relates to a wireless interlocking device for port machinery and belt conveyor systems. Background Technology

[0002] In port operations, all types of machinery used for loading, unloading, and transportation are collectively referred to as port machinery. Among these, in the daily operation of bulk cargo terminals, bridge grab unloaders, bucket wheel stacker-reclaimers, ship loaders, and conveyor belts are the main production equipment. These port machinery and conveyor belts work together to form a complete and efficient port transportation system. During the operation of this system, multiple sets of interlocking signals are established between the port machinery and the conveyor belts. These signals, connected by cables, can be exchanged in real time and efficiently. They cover various key signal categories, including allow feeding, stop feeding, allow three-way baffle switching, baffle positioning, ground conveyor belt operating status, and equipment malfunctions. Through the interaction of these interlocking signals, not only can remote commands be accurately received, but the conveyor belts can also quickly stop in the event of material blockage or malfunction, effectively reducing the further spread of the fault and strongly ensuring the stability and reliability of all equipment in the entire port transportation system, providing a solid foundation for efficient and safe port operations.

[0003] However, currently, communication between port machinery and belt conveyors mainly relies on wired transmission to achieve information exchange, specifically through various communication cables and fiber optic cables. But wired transmission has the following drawbacks:

[0004] The main disadvantages of various wired communication optical fibers and cables are:

[0005] 1. Aging cables lead to frequent malfunctions. Long-term exposure to highly corrosive and ultraviolet-rich environments like docks can easily damage cables. Furthermore, due to the nature of port machinery requiring frequent movement, cables are often laid and connected using reels, which can also cause damage from prolonged pulling.

[0006] 2. This type of fault repair is time-consuming and covers a wide range of areas. When an interlocking signal is lost, in addition to basic component checks, the focus is on troubleshooting the cables. Since the cables and the high-voltage cables of the port machinery power supply are located on the same reel mechanism, troubleshooting requires shutting down the entire machine's power supply, involving a broad scope. Moreover, for damaged cables, only spare cores can be replaced, and the number of spare cores is limited; replacing an additional cable would be too much work, thus making the repair difficult. Utility Model Content

[0007] To address the problems of aging lines and difficult maintenance in existing port conveyor systems, this invention provides a wireless interlocking device for port machinery and belt conveyor systems. This device connects the port machinery and belt conveyor via wireless communication, avoiding the problems associated with wired communication and solving the issues of aging wired lines and difficult maintenance.

[0008] The technical solution of this utility model is as follows:

[0009] A wireless interlocking device for port machinery and belt conveyor systems includes a 2P circuit breaker, a power adapter, a wireless data radio, a PLC module, and terminal blocks.

[0010] The 2P circuit breaker is connected to the power adapter, the power adapter is connected to the wireless data transmission radio and the PLC module, and the PLC module is connected to the terminal block.

[0011] The terminal block is used to connect with port machinery equipment or equipment in the control room to exchange interlocking signals.

[0012] The PLC module is connected to the wireless data transmission radio via an RS485 bus.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) This utility model effectively solves the problems of short circuit in the interlocking communication cable of port machinery, difficulty in troubleshooting the breakpoint, loss of interlocking signal, and inability to stop the equipment in time, thereby improving the reliability of the equipment and greatly reducing the failure rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an analytical diagram of the device of this utility model;

[0017] Figure 3 This is a communication diagram illustrating an example of this utility model;

[0018] In the diagram: 1-2P circuit breaker, 2-power adapter, 3-wireless data transmission radio, 4-PLC module, 5-terminal block. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0020] See Figure 2 A wireless interlocking device for port machinery and belt conveyor systems includes a 2P circuit breaker 1, a power adapter 2, a wireless data radio 3, a PLC module 4, and a terminal block 5.

[0021] The 2P circuit breaker 1 is connected to the power adapter 2, the power adapter 2 is connected to the wireless data transmission radio 3 and the PLC module 4, and the PLC module 4 is connected to the terminal block 5.

[0022] The terminal block 5 is used to connect with port machinery equipment or equipment in the control room to exchange interlocking signals.

[0023] A set of signals was connected in parallel to the feedback components of the original multiple interlocking signals and sent to the newly added PLC master station and PLC slave station. Through simple program editing, the PLC input or output signals were simultaneously transmitted and received via wireless data transmission radio. After the modification was completed, the port machinery and belt control system had an additional stable wireless communication device, which was redundant with the original wired transmission.

[0024] See Figure 2 The 2P circuit breaker 1 has overcurrent and instantaneous trip protection functions.

[0025] Power adapter 2 converts the 220V AC power connected to the control box into 24V DC power for PLC modules, radios, and other components, thus providing stable power and voltage conversion.

[0026] The wireless data radio 3 features wireless transmission capabilities, enabling wireless communication on specific frequency bands and overcoming the limitations of limited transmission. It can also communicate with data processing and interaction modules such as PLCs via RS485.

[0027] The PLC module 4 is editable, and through simple program editing, it can accurately send out the received data. When paired with the wireless data radio 3, it can complete the wireless transmission of signals, which must be digital and analog.

[0028] Terminal 5 can be hardwired to connect various signals that need to be transmitted.

[0029] Two sets of wireless communication devices are required to function. One set is installed on each of the two remote devices that need to communicate, and communication can be established between the two devices.

[0030] Please see Figure 1 In a specific embodiment of this utility model, the interaction method of this device is as follows:

[0031] Set up a first wireless interlocking device for connecting port machinery equipment and a second wireless interlocking device for connecting equipment in the control room.

[0032] The first wireless interlocking device has a first wireless data transmission radio and a PLC slave station, and the second wireless interlocking device has a second wireless data transmission radio and a PLC master station. The PLC master station is connected to the signal of the belt conveyor system in the program control room through a terminal block.

[0033] The PLC slave station is connected to the port machinery equipment and can receive the interlocking signals of the port machinery equipment. The PLC slave station is connected to the second wireless data transmission radio station, and the first wireless data transmission radio station and the second wireless data transmission radio station exchange signals through wireless communication.

[0034] The PLC master station is connected to the first wireless data transmission radio via an RS485 bus, and the PLC slave station is connected to the second wireless data transmission radio via an RS485 bus.

[0035] The present invention will be further illustrated by a specific implementation example below:

[0036] As shown in Figure 3, the interlocking signals of the port machinery include three-way damper positioning, port machinery malfunction, and port machinery interlock establishment. These are communicated via hardwiring in the low-voltage room of the port machinery. Figure 2 The wireless communication device shown is connected to terminal 5, thereby connecting to the PLC module (slave station) to achieve signal exchange. This PLC slave station communicates with the wireless data radio 3 via an RS485 interface.

[0037] A wireless communication device is installed in an open area outside the port machinery room. The wireless data transmission radio in the device transmits wireless signals to the radio in another wireless communication device installed outside the program control room through an antenna. The signal is stable.

[0038] The signals received by the wireless data transmission radio are transmitted back to the PLC master station in the device. The PLC master station feeds the signals back to the PLC in the control room of the belt conveyor system through hard wiring. The signals are then aggregated by the PLC in the control room through the central switch, collected to the data server for processing, and then displayed on the flowchart of the host computer to inform the operators in the dispatch room of the various statuses of the port machinery equipment.

[0039] Conversely, a real-time communication process also exists. Operators can use the host computer to send interlocking signals such as allow feeding, stop feeding, allow switching of the three-way damper, and ground belt operation back to the port machinery operator through this communication method, realizing real-time interaction of interlocking signals between the port machinery and the belt conveyor.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wireless interlocking device for port machinery and belt conveyor systems, characterized in that, Includes a 2P circuit breaker, power adapter, wireless data radio, PLC module and terminal blocks; The 2P circuit breaker is connected to the power adapter, the power adapter is connected to the wireless data transmission radio and the PLC module, and the PLC module is connected to the terminal block. The terminal block is used to connect with port machinery equipment or equipment in the control room to exchange interlocking signals.

2. The wireless interlocking device for port machinery and belt conveyor systems according to claim 1, characterized in that, The PLC module is connected to the wireless data transmission radio via an RS485 bus.

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