Automatic measuring device for bearing reaction force of shaft system

Abstract

The utility model relates to an automatic measuring device for bearing reaction force of a shaft system. The device comprises a combined hydraulic execution system, an automatic sensor data acquisition system and a computer agile control system. The combined hydraulic execution system is composed of a hydraulic pump station driven by a servo motor, an adjustable force measuring oil cylinder and a matched displacement / force measuring sensor, and high-precision pressure and displacement synchronous measurement is achieved. The sensor data automatic acquisition system acquires data in real time through the PLC module and transmits the data to the computer; the computer agile control system is provided with customized software, a force measurement curve can be automatically generated, an adjustment scheme is simulated, and a safety threshold value is set. According to the utility model, the problems of low precision and poor efficiency of traditional manual measurement are solved, full automation, high precision and safe controllability of shafting reaction force measurement are realized, the measurement error is less than 1%, and the efficiency is improved by 300%.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, and in particular to an automated measuring device for shafting support reaction force, specifically an automated measuring device for shafting support reaction force in ship shafting installation, and especially to a technical solution for achieving rapid measurement and adjustment of shafting support reaction force through high-precision sensing technology and intelligent algorithms. Background Technology

[0002] The shipbuilding industry handles 80% of global cargo transportation, facilitating the formation of global supply chains and driving economic globalization. With the continuous advancement of world integration and the increasing volume of global trade, the shipbuilding industry has experienced rapid development. As the power source for ship propulsion, the shafting system is a crucial component, and its installation quality affects various aspects of a ship, including its service life, navigational safety, and economic efficiency. Therefore, developing a highly automated and precise shafting installation technology solution is of great significance for improving installation accuracy, reducing labor costs, and increasing production efficiency.

[0003] In existing technologies, the traditional method for measuring the reaction force of each bearing support in a ship shafting system involves installing a dial indicator 5 above the measuring point and placing a force-measuring cylinder 6 (equipped with a manual hydraulic pump and pressure gauge 9) below. During measurement, the dial indicator 5 is zeroed, and the manual hydraulic pump is manually operated to gradually increase the pressure in the force-measuring cylinder 6. The forces exerted during the lifting and lowering of the hydraulic jack (jack force = force-measuring hydraulic pressure × cylinder 6 area) and the dial indicator 5 values ​​are recorded to plot a force measurement curve. After calculating the force on the force-measuring cylinder 6, multiplying it by the lifting coefficient yields the actual load on the bearing. (See...) Figure 1 .

[0004] The existing technical solutions described above have the following drawbacks: traditional methods are entirely manual, the accuracy of force measurement is highly dependent on the skill level of the construction personnel, the instruments used are of low precision, requiring a high level of skill from the construction personnel, the measured values ​​deviate from the actual values, the resulting curves fluctuate, and data processing may introduce errors. Traditional methods are not only time-consuming and labor-intensive, but also more prone to causing deviations between the measurement results and the actual values, affecting the quality of shaft system installation. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an automated measuring device for shaft support reaction force. Through automated and intelligent technologies, this device enables rapid measurement and adjustment of shaft support reaction force, thereby significantly improving shaft installation efficiency. The device mainly consists of a combined hydraulic actuator system, an automatic sensor data acquisition system, and a computer-based agile control system, and features automation, intelligence, and high precision.

[0006] The above-mentioned utility model objective is achieved through the following technical solution:

[0007] An automated measuring device for shaft support reaction force includes a magnetic gauge frame, a hydraulic cylinder, a force measuring base, a high-pressure oil pipe, a displacement sensor, a pressure sensor, a displacement display, a pressure display, an automatic sensor data acquisition cabinet, a laptop computer, a hydraulic pump station, an electrically controlled valve group, and an electrically controlled valve.

[0008] The oil cylinder is connected to the hydraulic pump station via the high-pressure oil pipe. The oil cylinder is mounted on the force measuring base. The pressure sensor is mounted on the top of the oil cylinder. The pressure sensor is used to detect the pressure data of the shaft section of the intermediate bearing. The intermediate bearing is mounted on the intermediate bearing base. The displacement sensor is mounted on the magnetic gauge frame.

[0009] The force measuring base is located below the force measuring position of the shaft section, the displacement sensor is located above the force measuring position of the shaft section, the electronically controlled valve is installed at the connection between the oil cylinder and the high-pressure oil pipe, and the electronically controlled valve assembly is installed on the high-pressure oil pipe.

[0010] The displacement display is connected to the displacement sensor, the pressure display is connected to the pressure sensor, and the automatic sensor data acquisition cabinet is connected to the displacement display, the pressure display, the electric control valve, the electric control valve group, the hydraulic pump station, and the laptop computer via data cables.

[0011] As a further technical solution of this utility model: the automatic sensor data acquisition cabinet acquires the data of the pressure sensor and the displacement sensor in real time through the 485 communication protocol, and is configured with a PLC module for data processing.

[0012] The laptop has built-in customized software that can generate force curves, set safe pressure / displacement thresholds, and output shaft system adjustment schemes through simulation algorithms. The laptop's software includes:

[0013] The data visualization module displays the pressure-displacement curves of each measuring point in real time.

[0014] The safety protection module allows setting the upper limit of pressure (50-500kN) and the upper limit of displacement (0.1-5mm);

[0015] The simulation adjustment module predicts the distribution of support reaction forces after adjustment based on the finite element algorithm.

[0016] This device supports multi-ship type adaptation, and the software has a built-in ship shafting database containing parameter templates for five standard ship types. The laptop interfaces with the shipyard's MES system via the OPC protocol, supporting automatic archiving of measurement data.

[0017] As a further technical solution of this utility model: the pressure holding valve of the oil cylinder adopts an electromagnetic proportional valve, and the descent speed of the oil cylinder is infinitely adjustable from 0.1-5mm / s through the solenoid valve.

[0018] As a further technical solution of this utility model: the displacement sensor is a laser displacement meter with a measurement accuracy of ±1μm;

[0019] The pressure sensor is a strain gauge sensor with a measurement accuracy of ±0.1%FS.

[0020] As a further technical solution of this utility model: the hydraulic pump station is equipped with dual redundant pressure sensors, and the main oil circuit is equipped with a main control relief valve with a pressure adjustment range of 0-60MPa.

[0021] As a further technical solution of this utility model: the automatic sensor data acquisition cabinet includes a distributed data acquisition unit, and each measuring point is independently configured with a 16-bit AD conversion module.

[0022] As a further technical solution of this utility model: the force measuring base adopts a modular quick-assembly structure, which includes a height adjustment screw (±20mm) and a level calibrator.

[0023] As a further technical solution of this utility model: the electronically controlled valve group includes a proportional directional valve and a pressure compensator, achieving a synchronization accuracy of ±0.5% for multiple oil cylinders.

[0024] In summary, this utility model has at least one of the following beneficial technical effects:

[0025] 1. This utility model discloses an automated measuring device for shaft support reaction force, which has the following technical effects:

[0026] High degree of automation: The entire installation process is operated by 1-2 people, which reduces labor intensity and improves production efficiency.

[0027] High measurement accuracy: The force sensor and displacement sensor have measurement accuracy division values ​​of Newton and micrometer, respectively, which are used to verify the lifting force and displacement, and the measurement accuracy is high.

[0028] Highly adaptable: By inputting bearing information from different shafting systems into the software within the laptop of the automated shafting support reaction force measurement device, shafting support reaction force can be measured for various ship types, making it suitable for all ship types.

[0029] Safe and reliable: Adopting advanced safety protection measures, the data measurement and acquisition system can be set with upper limits for safe pressure and safe displacement to avoid damage to the shaft system and ensure the safety and reliability of the entire measurement process.

[0030] High measurement efficiency: After the initial installation of the shaft support reaction force measurement equipment, there is no need to remove the device. The bearing support reaction force can be measured quickly after powering on, and the measurement speed is much higher than that of traditional methods.

[0031] 2. This invention integrates high-precision sensing technology (laser displacement gauge ±1μm, strain gauge pressure sensor ±0.1%FS) with intelligent algorithms (improved particle swarm optimization algorithm) to achieve fully automated and high-precision measurement of ship shafting support reactions, reducing the overall error of traditional manual measurement from over 5% to less than 1%. The system adopts a combined hydraulic actuation architecture (servo motor drive, multi-cylinder synchronous accuracy ±0.5%) and a dynamic safety protection model (50ms-level fast response), reducing the time for a single full-ship shafting measurement from 72 hours to 8 hours, and the major accident rate from 0.3% to 0.02%. It also supports rapid adaptation to five standard ship types, with an equipment reuse rate of 95%.

[0032] 3. This utility model significantly improves the engineering efficiency and economy of shipbuilding, reducing manpower requirements from 3-4 people to 1-2 people working together, and lowering labor costs by 80%. Through a computer-aided agile control system (including data visualization, safety threshold early warning, and simulation adjustment modules), the number of adjustments is reduced by 60%, and the shaft alignment accuracy is improved to ±0.1mm, avoiding rework losses caused by accumulated errors in traditional methods (saving approximately 500,000 RMB in maintenance costs per ship). Its modular design (quick-installation base, multi-ship type database) and MES system integration capabilities further promote the intelligent upgrading of the shipbuilding industry. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the traditional method for measuring shaft support reaction force in the background technology of this utility model.

[0034] Figure 2 This is a schematic diagram of the installation for measuring shaft support reaction force using the device of this utility model.

[0035] Figure 3 This is a physical diagram of the device for measuring shaft support reaction force of this utility model.

[0036] Figure 4 This is a computer interface diagram for measuring shaft support reaction force using the device of this utility model.

[0037] Reference numerals in the attached diagram: 1. Intermediate bearing; 2. Shaft section; 3. Intermediate bearing base; 4. Magnet indicator holder; 5. Dial indicator; 6. Hydraulic cylinder; 7. Force measuring base; 8. High-pressure oil pipe; 9. Pressure gauge; 10. Manual oil pump; 11. Displacement sensor; 12. Pressure sensor; 13. Displacement display; 14. Pressure display; 15. Automatic sensor data acquisition cabinet; 16. Laptop computer; 17. Hydraulic pump station; 18. Electrically controlled valve assembly; 19. Electrically controlled valve. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] Example 1:

[0042] Reference Figure 2 This utility model discloses an automated measuring device for shaft support reaction force, comprising a magnetic gauge frame 4, a hydraulic cylinder 6, a force measuring base 7, a high-pressure oil pipe 8, a displacement sensor 11, a pressure sensor 12, a displacement display 13, a pressure display 14, an automatic sensor data acquisition cabinet 15, a laptop computer 16, a hydraulic pump station 17, an electrically controlled valve group 18, and an electrically controlled valve 19. The hydraulic cylinder 6 is connected to the hydraulic pump station 17 via the high-pressure oil pipe 8. The hydraulic cylinder 6 is mounted on the force measuring base 7. The pressure sensor 12 is mounted on the top of the hydraulic cylinder 6 and is used to detect the pressure data of the shaft segment 2 of the intermediate bearing 1. The intermediate bearing 1 is mounted on the intermediate bearing base 3. The displacement sensor 11 is mounted on the magnetic gauge frame 4.

[0043] The force measuring base 7 is set below the force measuring position of the shaft segment 2, the displacement sensor 11 is set above the force measuring position of the shaft segment 2, the solenoid valve 19 is installed at the connection between the oil cylinder 6 and the high-pressure oil pipe 8, and the solenoid valve assembly 18 is installed on the high-pressure oil pipe 8; the displacement display 13 is connected to the displacement sensor 11, the pressure display 14 is connected to the pressure sensor 12, and the sensor data automatic acquisition cabinet 15 is connected to the displacement display 13, the pressure display 14, the solenoid valve 19, the solenoid valve assembly 18, the hydraulic pump station 17, and the laptop computer 16 via data cables.

[0044] The automatic sensor data acquisition cabinet 15 acquires data from the pressure sensor 12 and displacement sensor 11 in real time via the 485 communication protocol and is configured with a PLC module for data processing. The laptop computer 16 has built-in customized software that can generate force curves, set safe pressure / displacement thresholds, and output shaft adjustment schemes through simulation algorithms. The software on the laptop computer 16 includes:

[0045] The data visualization module displays the pressure-displacement curves of each measuring point in real time.

[0046] The safety protection module allows setting the upper limit of pressure (50-500kN) and the upper limit of displacement (0.1-5mm);

[0047] The simulation adjustment module predicts the distribution of support reaction forces after adjustment based on the finite element algorithm.

[0048] This device supports multi-ship type adaptation, and the software has a built-in ship shafting database containing parameter templates for five standard ship types. The laptop 16 interfaces with the shipyard's MES system via the OPC protocol, supporting automatic archiving of measurement data.

[0049] The pressure-holding valve of cylinder 6 is an electromagnetic proportional valve, and the descent speed of cylinder 6 is infinitely adjustable from 0.1-5 mm / s via the electrically controlled valve 19. Displacement sensor 11 is a laser displacement gauge with a measurement accuracy of ±1 μm; pressure sensor 12 is a strain gauge with a measurement accuracy of ±0.1% FS. Hydraulic pump station 17 is equipped with dual redundant pressure sensors 12, and the main oil circuit has a master control relief valve with a pressure adjustment range of 0-60 MPa. The automatic sensor data acquisition cabinet 15 includes a distributed data acquisition unit, with each measuring point independently configured with a 16-bit AD conversion module. The force-measuring base 7 adopts a modular quick-release structure, which includes a height adjustment screw (±20 mm) and a level calibrator. The electrically controlled valve group 18 includes a proportional directional valve and a pressure compensator, achieving a synchronous accuracy of ±0.5% for multiple cylinders 6.

[0050] (1) Overview of the technical solution:

[0051] This technical solution aims to design an automated measurement device for shaft support reaction force. Through automated and intelligent technologies, it achieves rapid measurement and adjustment of shaft support reaction force, thereby significantly improving shaft installation efficiency. The device mainly consists of a combined hydraulic actuator system, an automatic sensor data acquisition system, and a computer-based agile control system, and features automation, intelligence, and high precision.

[0052] The force sensor (including the hydraulic cylinder 6) is placed on the force base 7, and the displacement sensor 11 is installed on the table frame. The number of force sensors and displacement sensors 11 should be installed according to the number of bearing stress points to be measured. The force sensor and displacement sensor 11 are connected to the sensor data automatic acquisition cabinet 15 through the data cable. The hydraulic hose connects the hydraulic cylinder 6 to the hydraulic station.

[0053] Data acquisition commands are issued via a laptop computer 16 or an automatic sensor data acquisition cabinet 15, and bearing support reactions are measured sequentially according to the command order. Computer software analyzes the acquired data and generates shaft system force calculation results and image curves. A demonstration of shaft system support reaction force measurement is attached. Figure 2 .

[0054] (2) System composition and functions

[0055] Combined hydraulic actuator system: Equipped with the required number and specifications of force-measuring cylinders 6, and a corresponding number of displacement sensors 11 and force sensors to measure the displacement and load changes of cylinders 6; a hydraulic station consisting of a servo motor and an ultra-high pressure pump, with its own oil tank; pressure-holding valves are installed at the inlet and outlet of cylinders 6 to maintain pressure when cylinders 6 are not working, and a one-way throttle valve is also installed at the outlet of cylinders 6 to control the descent speed of cylinders 6 without affecting the ascent; the main oil circuit of the system is equipped with a main control relief valve and a pressure gauge 9, which facilitates the operator to observe and adjust the system pressure.

[0056] Automatic sensor data acquisition system: Equipped with a PLC module, it acquires and processes data from displacement sensor 11 and force sensor in real time via 485 communication, and transmits the data to the host computer. Each hydraulic cylinder 6 has a display for the corresponding force and displacement measurements, with graduations in kilonewtons and micrometers, used to verify the accuracy of lifting force and displacement measurements. The data measurement and acquisition system allows setting pressure, as well as setting a safety pressure and safety displacement upper limit to avoid damage to the shaft system.

[0057] Computer-Agile Control System: Equipped with a 16-inch laptop and customized software for data processing and analysis; various parameters can be monitored in real time through the computer system UI, centrally monitoring system operation; the software can analyze the collected data and generate shaft system force calculation results and image curves; the software and monitoring interface have multiple prompt screens to reduce operational risks; when the data is out of tolerance, the software can simulate and adjust the measured results, simulating shaft system adjustment schemes for shaft system adjustment reference, thus accelerating the shaft system adjustment speed.

[0058] (3) Installation process:

[0059] ①Preparation: Install the force measuring base 7 below the force measuring position of shaft segment 2, and install the displacement sensor 11 stand above the force measuring position of shaft segment 2; input the shaft bearing information into the software inside the laptop computer 16 of the shaft support reaction force automated measurement device.

[0060] ② Equipment installation: Place the force sensor (including the hydraulic cylinder 6) on the force base 7, and install the displacement sensor 11 on the gauge. Install the corresponding number of force sensors and displacement sensors 11 for each bearing force point that needs to be measured. The force sensor and displacement sensor 11 are connected to the sensor data automatic acquisition cabinet 15 via data cables. The hydraulic hose connects the hydraulic cylinder 6 to the hydraulic station.

[0061] ③ Shaft support reaction force measurement: Data acquisition commands are issued via the laptop computer 16 or the automatic sensor data acquisition cabinet 15, and the bearing support reaction forces are measured sequentially according to the command sequence. The computer software can analyze the acquired data and generate shaft force calculation results and image curves.

[0062] ④ Simulation Adjustment: When the data is out of tolerance, the software can simulate the adjustment of the measured results and simulate the shaft system adjustment scheme for shaft system adjustment reference, thereby speeding up the shaft system adjustment.

[0063] ⑤ Shaft support reaction force retest: After the initial shaft support reaction force measurement equipment is installed, this device does not need to be removed. After powering on, the shaft support reaction force can be measured again. For subsequent retests, only the laptop 16 or the sensor data automatic acquisition cabinet 15 needs to issue a data acquisition command to quickly measure the bearing support reaction force.

[0064] The key technical points or points to be protected in this utility model are:

[0065] (1) Key technological innovation:

[0066] Precision control technology:

[0067] Traditional methods calculate the pressure of cylinder 6 by multiplying the pressure gauge reading (9) by the area of ​​cylinder 6, and then use a dial indicator (5) above shaft segment 2 to read its displacement. The accuracy of these instruments and human error directly affect the measurement accuracy. This automated shaft support reaction force measurement device uses high-precision force and displacement sensors (11) to directly measure the pressure of cylinder 6 and the displacement of shaft segment 2. The measured data is directly transmitted to a computer software system for analysis, improving measurement accuracy.

[0068] Intelligent computing and control technology:

[0069] Each parameter can be monitored in real time through the computer system UI, and the system operation can be centrally monitored; the software can analyze the collected data and generate shafting force calculation results and image curves; the software and monitoring interface have multiple prompt screens to reduce operational risks; the software can simulate and adjust the measured results to simulate shafting adjustment schemes for shafting adjustment reference; by inputting the bearing information of different shafting systems into the software within the laptop of the automated shafting support reaction force measurement device, shafting support reaction force can be measured for various ship types, making it suitable for various ship types.

[0070] Safety protection technology:

[0071] With advanced safety protection measures, the data measurement and acquisition system can be set with upper limits for safe pressure and safe displacement to avoid damage to the shaft system and ensure the safety and reliability of the entire measurement process.

[0072] (2) Technical points to be protected:

[0073] Design of a combined hydraulic actuator system:

[0074] The combined hydraulic actuator system is a key component in realizing the various functions of the automated shaft support reaction force measurement device. It is equipped with the required number and specifications of force-measuring cylinders 6, along with a corresponding number of displacement sensors 11 and force sensors, to measure the displacement and load changes of the cylinders 6. The combined hydraulic actuator system significantly improves the measurement accuracy of shaft support reaction forces.

[0075] Design of an automatic sensor data acquisition system:

[0076] The automatic sensor data acquisition system is equipped with a PLC module, which collects and processes data from displacement sensor 11 and force sensor 11 in real time via RS-485 communication, and transmits the data to the host computer. The application of this automatic sensor data acquisition system automates the measurement of shaft support reactions, improving the safety of shaft reaction force measurement.

[0077] Computer-Agile Control System Design:

[0078] The computer-aided agile control system is equipped with a 16-inch laptop and customized software for data processing and analysis, generating shaft system force calculation results and image curves. When data exceeds tolerances, the software can simulate adjustments to the measured results, generating shaft system adjustment schemes for reference and accelerating the adjustment process. The computer-aided agile control system intelligently processes and analyzes data, making shaft system installation and adjustment more convenient and efficient.

[0079] Measurement and adjustment of bearing support reactions in ship shafting. Includes automatic measurement of bearing support reactions; data processing and analysis to generate shafting force calculation results and image curves; and simulation of shafting adjustment schemes for reference.

[0080] This utility model has the following technical effects:

[0081] Improving production efficiency: Traditional methods for measuring bearing support reaction forces rely entirely on manual operation. The accuracy of the measurement is highly dependent on the skill level of the construction personnel, which is not only time-consuming and labor-intensive but also prone to causing deviations between the measured results and the actual situation, affecting the quality of shaft installation. The utility model of the automated shaft support reaction force measurement device aims to achieve rapid measurement and adjustment of shaft support reaction forces through automated and intelligent technologies, thereby significantly improving shaft installation efficiency.

[0082] Reduce production costs: Using an automated shaft support reaction force measurement device to measure bearing support reaction force can reduce reliance on a large number of workers and lower labor costs.

[0083] Improving installation accuracy and stability: An automated shaft support reaction force measurement device is used to measure bearing support reaction forces. Data from high-precision displacement sensors 11 and force sensors is directly transmitted to a computer. The software analyzes the collected data, generating shaft force calculation results and image curves. This ensures the accuracy of shaft support reaction force measurement, providing stable and reliable results and avoiding quality problems caused by human error.

[0084] Ensuring operational safety: The data measurement and acquisition system within the automated shaft support reaction force measurement device can be set with upper limits for safe pressure and safe displacement to prevent damage to the shaft system due to human error.

[0085] Promoting Industrial Automation Upgrades: The research and application of automated shaft support reaction force measurement devices will help drive the upgrading and development of industrial automation. This intelligent production method will lead the manufacturing industry towards a more efficient, environmentally friendly, and sustainable direction.

[0086] The implementation principle of this utility model is as follows: The steps for measuring the shaft support reaction force using this automated shaft support reaction force measuring device are as follows:

[0087] Step 1: Install the force measuring base 7 below the force measuring position of shaft segment 2, and install the displacement sensor 11 frame above the force measuring position of shaft segment 2; input the shaft bearing information into the software inside the laptop computer 16 of the shaft support reaction force automated measurement device.

[0088] Step 2: Place the force sensor (including the hydraulic cylinder 6) on the force base 7, and install the displacement sensor 11 on the gauge. Install the corresponding number of force sensors and displacement sensors 11 for each bearing force point that needs to be measured. Connect the force sensor and displacement sensor 11 to the sensor data automatic acquisition cabinet 15 via a data cable. Connect the hydraulic cylinder 6 to the hydraulic station via a hydraulic hose.

[0089] Step 3: Send data acquisition commands via laptop 16 or automatic sensor data acquisition cabinet 15, and measure the bearing support reaction force sequentially according to the command sequence. The computer software can analyze the acquired data and generate shaft system force calculation results and image curves.

[0090] Step 4: When the data is out of tolerance, the software can simulate and adjust the measured results to generate a shaft system adjustment scheme for reference and speed up the shaft system adjustment.

[0091] Step 5: After the initial installation of the shaft support reaction force measurement equipment, there is no need to remove the device. After powering on, the shaft support reaction force can be measured again. For subsequent re-measurements, only the laptop 16 or the sensor data automatic acquisition cabinet 15 needs to issue a data acquisition command to quickly measure the bearing support reaction force.

[0092] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A shafting support reaction force automatic measuring device, characterized by, The device comprises an iron table frame (4), an oil cylinder (6), a force measuring base (7), a high-pressure oil pipe (8), a displacement sensor (11), a pressure sensor (12), a displacement display (13), a pressure display (14), a sensor data automatic acquisition cabinet (15), a notebook computer (16), a hydraulic pump station (17), an electric control valve group (18), and an electric control valve (19); The oil cylinder (6) is connected with the hydraulic pump station (17) through the high-pressure oil pipe (8), the oil cylinder (6) is installed on the force measuring base (7), the pressure sensor (12) is installed on the top of the oil cylinder (6), the pressure sensor (12) is used for detecting the pressure data of the shaft section (2) of the intermediate bearing (1), the intermediate bearing (1) is installed on the intermediate bearing base (3), and the displacement sensor (11) is installed on the iron table frame (4). The force measuring base (7) is arranged below the force measuring position of the shaft section (2), the displacement sensor (11) is arranged above the force measuring position of the shaft section (2), the electric control valve (19) is installed at the connection between the oil cylinder (6) and the high-pressure oil pipe (8), and the electric control valve group (18) is installed on the high-pressure oil pipe (8). The displacement display (13) is connected with the displacement sensor (11), the pressure display (14) is connected with the pressure sensor (12), and the sensor data automatic acquisition cabinet (15) is connected with the displacement display (13), the pressure display (14), the electric control valve (19), the electric control valve group (18), the hydraulic pump station (17), and the notebook computer (16) through data lines.

2. The shafting reaction force automatic measuring device according to claim 1, characterized in that, The sensor data automatic acquisition cabinet (15) collects the data of the pressure sensor (12) and the displacement sensor (11) in real time through a 485 communication protocol, and configures a PLC module to process the data.

3. The shafting reaction force automatic measuring device according to claim 1, characterized in that, The pressure maintaining valve of the oil cylinder (6) is an electromagnetic proportional valve, and the descending speed of the oil cylinder (6) is steplessly adjusted to 0.1-5 mm / s through the electric control valve (19).

4. The shafting reaction force automatic measuring device according to claim 1, characterized in that, The displacement sensor (11) is a laser displacement meter, and the measurement accuracy is ±1 μm. The pressure sensor (12) is a strain sensor, and the measurement accuracy is ±0.1% FS.

5. The shafting reaction force automatic measuring device according to claim 1, characterized in that, The hydraulic pump station (17) is provided with double-redundancy pressure sensors (12), a main oil way is provided with a total control overflow valve, and the pressure regulation range is 0-60 MPa.

6. The shafting reaction force automatic measuring device according to claim 1, characterized in that, The sensor data automatic acquisition cabinet (15) comprises a distributed data acquisition unit, and each measuring point is independently configured with a 16-bit AD conversion module.

7. The shafting reaction force automatic measuring device according to claim 1, characterized in that, The force measuring base (7) adopts a modular quick-mounting structure, and the modular quick-mounting structure comprises a height adjusting screw rod and a horizontal calibrator.

8. The shafting reaction force automatic measuring device according to claim 1, characterized in that, The electric control valve group (18) comprises a proportional directional valve and a pressure compensator, and realizes the synchronization accuracy of ±0.5% of multiple oil cylinders (6).

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