CN-121976834-A - Intelligent multifunctional portable mine pressure testing device and application method thereof

Abstract

The invention relates to the technical field of mine pressure force measurement, in particular to an intelligent multifunctional portable mine pressure testing device and a using method thereof, comprising an anchor rod, wherein a tray is arranged on the anchor rod in a threaded manner, the novel anchor rod is characterized in that a nut is arranged on the anchor rod in a threaded mode, the tray is movably abutted to the nut, a measuring block is arranged on the anchor rod in a threaded mode, and a sensor for monitoring the state of the anchor rod is arranged on the measuring block. The pressure sensor directly monitors the axial load of the anchor rod in real time, provides the most central quantitative basis for evaluating the effectiveness of support, indirectly reflects the stress state of the anchor rod and specially pre-warns the risk of mechanical failure such as loosening and sliding by accurately measuring the displacement of the nut or the relative deformation of the rod body, and forms a complete monitoring chain from stress to deformation by the distance sensor and the pressure sensor together so as to realize real-time pre-warning and accurate diagnosis.

Inventors

• KANG XIANGTAO
• DUAN YUANTAO
• Yi Hanhua
• Ni Xinwen
• Peng Yuanhao
• FENG YAFEI
• SHEN XIAOYING
• ZHANG YIMING
• LONG TU
• ZHOU YANLING
• Du Yezi

Assignees

• 贵州大学

Dates

Publication Date

20260505

Application Date

20260407

Claims (6)

1. 1. The utility model provides an intelligent multi-functional portable mine pressure testing arrangement, includes stock 1, install tray 2 on the stock 1 screw thread, nut 3 is installed to the screw thread on the stock 1, tray 2 offsets with the nut 3 activity, its characterized in that, install measuring block 4 on the stock 1 screw thread, install the sensor that is used for monitoring the state of stock 1 on the measuring block 4.
2. 2. An intelligent multifunctional portable mine pressure testing device according to claim 1, wherein the sensor comprises a pressure sensor 5 arranged on one side of the measuring block 4 close to the nut 3, the pressure sensor 5 is used for monitoring the installation pretightening force, a distance measuring sensor 6 is arranged on one side of the measuring block 4 far from the nut 3, and the distance measuring sensor 6 is used for measuring the elongation of the anchor rod 1.
3. 3. An intelligent multifunctional portable mine pressure testing device according to claim 2, wherein the measuring block 4 supplies power to the pressure sensor 5 and the ranging sensor 6 through a passive wireless sensing mode and matching with a button cell.
4. 4. The intelligent multifunctional portable mine pressure testing device according to claim 2, wherein the measuring block 4 provides stable power supply and data transmission for the pressure sensor 5 and the ranging sensor 6 through a thin cable, and the measuring block 4 is provided with a mine intrinsic safety type cable connector interface 7 for connecting the thin cable.
5. 5. A method of using an intelligent multifunctional portable mine pressure testing device according to claim 3, comprising the steps of: Step 1, installing mining intrinsic safety type data acquisition gateways in a tunnel key section and a monitoring key area, as a sensing hub of network terminals, integrating multiple types of interfaces, synchronously connecting wired sensors in the area, receiving wireless sensor data, integrating readers to acquire passive wireless sensing tag information, connecting the data acquisition gateways distributed everywhere through industrial Ethernet switches, ensuring that any single-point line fault does not cause regional network paralysis, guaranteeing the reliability of data transmission of an access layer, using the mining flame-retardant optical cable to enable the industrial Ethernet switches of the access layer to be converged upwards and connected to an industrial grade gigabit/ten thousand megafiber backbone looped network which is laid in advance in a mine as an underground information expressway, bearing the high-speed and stable uploading task of all monitoring data, enabling all the monitoring data to be transmitted to a data server of a ground machine room through underground backbone, and finally accessing a comprehensive monitoring platform to store, analyze, visualize and early warn, and finish full-flow conversion from physical perception to decision information; Drilling anchor rod holes at a designed position according to a preset angle and depth, thoroughly clearing the holes, filling resin anchoring agent into the holes, quickly inserting a rod body of the anchor rod 1 into the hole bottom, rotating the rod body of the anchor rod 1 through a special stirring device to fully mix the anchoring agent and complete anchoring, sequentially installing a tray 2 and a nut 3 after the anchoring agent is fully solidified to reach initial setting strength, and applying design pretightening force to the nut 3 by using a torque wrench or hydraulic tensioning equipment to enable the tray 2 to be tightly attached to a rock surface, so that active supporting installation of the whole anchor rod 1 is completed; step 3, an independent passive wireless pressure sensor 5 is firmly installed on one side, close to a nut 3, of a measuring block 4 through a special base, a passive wireless ranging sensor 6 is firmly installed on one side, far away from the nut 3, of the measuring block 4 through the special base, the measuring block 4 is screwed into a rod body of an anchor rod 1 and is enabled to be in movable contact with the nut 3, at the moment, the passive wireless pressure sensor 5 is in contact with the nut 3, an initial pressure value generated by the passive wireless pressure sensor 5 is recorded immediately and is used as a benchmark for monitoring the axial force of the anchor rod 1, the initial distance value between the passive wireless pressure sensor 5 and a corresponding reference surface is measured and recorded through the passive wireless ranging sensor 6, a matched mining intrinsic safety type wireless reader-writer is installed in the range of 0.5-2 m of a roadway roof side reliable position and distance sensing labels, the antenna direction of the mining intrinsic safety type wireless reader-writer is guaranteed to effectively cover all sensing labels, after the anchor rod 1 is tensioned, each sensing label is wakened through a portable activator, and stability and accuracy of data reading are verified through the reader-writer, and system deployment is completed; And 4, transmitting all underground anchor rod sensor data to a data server of a ground central machine room in real time through an industrial looped network for centralized storage, analysis and visualization, enabling monitoring center personnel to globally master stress states, historical trends and abnormal alarms of all anchor rods 1 through a large professional screen or workstation software, realizing security situation perception and decision support of all ore dimensions, and enabling site inspection or maintenance personnel to automatically load and check real-time data and state information of anchor rods 1 near a roadway where the anchor rods are located based on position services through an authorized special mobile phone APP, so as to quickly locate suspected fault points, verify alarm information and guide site maintenance operation.
6. 6. An intelligent multifunctional portable mine pressure testing device using method based on the intelligent multifunctional portable mine pressure testing device disclosed in claim 4 is characterized by comprising the following steps: Step 1, installing mining intrinsic safety type data acquisition gateways in a tunnel key section and a monitoring key area, as a sensing hub of network terminals, integrating multiple types of interfaces, synchronously connecting wired sensors in the area, receiving wireless sensor data, integrating readers to acquire passive wireless sensing tag information, connecting the data acquisition gateways distributed everywhere through industrial Ethernet switches, ensuring that any single-point line fault does not cause regional network paralysis, guaranteeing the reliability of data transmission of an access layer, using the mining flame-retardant optical cable to enable the industrial Ethernet switches of the access layer to be converged upwards and connected to an industrial grade gigabit/ten thousand megafiber backbone looped network which is laid in advance in a mine as an underground information expressway, bearing the high-speed and stable uploading task of all monitoring data, enabling all the monitoring data to be transmitted to a data server of a ground machine room through underground backbone, and finally accessing a comprehensive monitoring platform to store, analyze, visualize and early warn, and finish full-flow conversion from physical perception to decision information; Drilling anchor rod holes at a designed position according to a preset angle and depth, thoroughly clearing the holes, filling resin anchoring agent into the holes, quickly inserting a rod body of the anchor rod 1 into the hole bottom, rotating the rod body of the anchor rod 1 through a special stirring device to fully mix the anchoring agent and complete anchoring, sequentially installing a tray 2 and a nut 3 after the anchoring agent is fully solidified to reach initial setting strength, and applying design pretightening force to the nut 3 by using a torque wrench or hydraulic tensioning equipment to enable the tray 2 to be tightly attached to a rock surface, so that active supporting installation of the whole anchor rod 1 is completed; And 3, firmly installing a pressure sensor 5 on one side of a measuring block 4 close to a nut 3 through a special base, firmly installing a ranging sensor 6 on one side of the measuring block 4 far away from the nut 3 through the special base, screwing the measuring block 4 into a rod body of an anchor rod 1, enabling the measuring block to be movably abutted against the nut 3, enabling the pressure sensor 5 to be in contact with the nut 3, immediately recording an initial pressure value generated by the pressure sensor, measuring and recording an initial distance value between the pressure sensor 5 and a corresponding reference surface through the ranging sensor 6, pre-installing a special mining intrinsic safety type cable connector interface 7 at an outlet end of the pressure sensor 5 and the ranging sensor 6, selecting a mining intrinsic safety type multi-core universal bus cable with proper length, crimping matched connector male heads at two ends of the mining intrinsic safety type multi-core universal bus cable, defining the power cable according to line sequence, reliably connecting a power line and a signal line in the cable to a corresponding male head contact, accurately aligning and screwing the male heads on the sensor connectors on the bus cable, realizing firm connection between the electric cable and a machine, ensuring that an internal rubber sealing ring is compressed in place in the process, and then carrying out secondary protection on a connection position through anti-explosion cement or insulating tape, completing the intrinsic safety protection on the connection position, completing the intrinsic safety protection function, protecting and protecting a cable, protecting the connection position by adopting a cable groove, protecting a cable, or a cable-protecting cable, and a cable-protecting area, or a cable-protecting area. And the other end of the cable is pulled to a mining intrinsic safety type data acquisition gateway installed nearby, and the mining intrinsic safety type data acquisition gateway is connected to a corresponding communication interface. The intrinsic safety power supply is connected to the gateway terminal, the communication protocol and the sensor address are configured through software, and finally, full line debugging is carried out, so that the power supply stability of all sensors is confirmed, and data can be transmitted to the gateway in real time and reliably; And 4, transmitting all underground anchor rod sensor data to a data server of a ground central machine room in real time through an industrial looped network for centralized storage, analysis and visualization, enabling monitoring center personnel to globally master stress states, historical trends and abnormal alarms of all anchor rods 1 through a large professional screen or workstation software, realizing security situation perception and decision support of all ore dimensions, and enabling site inspection or maintenance personnel to automatically load and check real-time data and state information of anchor rods 1 near a roadway where the anchor rods are located based on position services through an authorized special mobile phone APP, so as to quickly locate suspected fault points, verify alarm information and guide site maintenance operation.

Description

Intelligent multifunctional portable mine pressure testing device and application method thereof Technical Field The invention relates to the technical field of mine pressure force measurement, in particular to an intelligent multifunctional portable mine pressure testing device and a using method thereof. Background The anchor rod tray is used as an important part in an anchor rod supporting system, the performance of the anchor rod tray directly influences the supporting effect of an anchor rod, the tray has the function of transmitting thrust generated by a nut locking moment to the top wall to generate initial anchoring force, and meanwhile, the pressure of the top wall of a roadway is transmitted to the anchor rod to generate working resistance so as to jointly strengthen surrounding rock and prevent the top wall of the roadway from displacing. The current anchor bolt support state monitoring mainly depends on post or intermittent means such as manual inspection, drawing sampling inspection and the like, the core of the anchor bolt support is axial prestress and working load in the anchor bolt support, the data cannot be obtained in the whole life cycle of the support by the traditional method, a support system is made into a black box, the manual drawing and the like point inspection mode belongs to static, sampling and destructive detection, dynamic load cannot be reflected, and a safety blind area exists in the detection interval period. Disclosure of Invention The invention aims to solve the problems that in the prior art, manual drawing and the like point detection mode belongs to static, sampling and destructive detection, dynamic load cannot be reflected, and a safety blind area exists in a detection interval period, and provides an intelligent multifunctional portable mine pressure testing device and a using method thereof. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides an intelligent multi-functional portable mine pressure testing arrangement and application method thereof, includes the stock, the screw thread is installed on the stock has the tray, the screw thread is installed on the stock has the nut, the tray offsets with the nut activity, its characterized in that, the screw thread is installed on the stock and is surveyed the piece, install the sensor that is used for monitoring the state of stock on the piece. Based on the same device, the invention provides two different using methods, namely, a first method focuses on coverage breadth and deployment convenience, and a second method focuses on data quality and reliability. The two methods share the device, but adapt to different application scenarios through different control logic and parameter settings. The intelligent multifunctional portable mine pressure testing device provided in the first use method comprises the following steps: preferably, the sensor comprises a pressure sensor arranged on one side of the measuring block close to the nut, the pressure sensor is used for monitoring the installation pretightening force, and a distance measuring sensor is arranged on one side of the measuring block far away from the nut and is used for measuring the elongation of the anchor rod. Preferably, the measuring block supplies power for the pressure sensor and the ranging sensor through a passive wireless sensing mode and a button battery. The use method of the intelligent multifunctional portable mine pressure testing device is provided, and the method comprises the following steps of: Step 1, installing mining intrinsic safety type data acquisition gateways in a tunnel key section and a monitoring key area, as a sensing hub of network terminals, integrating multiple types of interfaces, synchronously connecting wired sensors in the area, receiving wireless sensor data, integrating readers to acquire passive wireless sensing tag information, connecting the data acquisition gateways distributed everywhere through industrial Ethernet switches, ensuring that any single-point line fault does not cause regional network paralysis, guaranteeing the reliability of data transmission of an access layer, using the mining flame-retardant optical cable to enable the industrial Ethernet switches of the access layer to be converged upwards and connected to an industrial grade gigabit/ten thousand megafiber backbone looped network which is laid in advance in a mine as an underground information expressway, bearing the high-speed and stable uploading task of all monitoring data, enabling all the monitoring data to be transmitted to a data server of a ground machine room through underground backbone, and finally accessing a comprehensive monitoring platform to store, analyze, visualize and early warn, and finish full-flow conversion from physical perception to decision information; Drilling an anchor rod hole according to a preset angle and depth at a designed position, thoro