Floating type mud performance index intelligent detection device

By designing a floating intelligent detection device for mud performance indicators, which integrates multiple sensors for real-time online detection, the problems of low measurement accuracy and low efficiency in existing technologies are solved, enabling timely feedback of mud performance and construction data support.

CN121856513APending Publication Date: 2026-04-14BEIJING JIAOTONG UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING JIAOTONG UNIV
Filing Date
2025-11-26
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing mud testing methods suffer from low measurement accuracy, low efficiency, limited functionality, and inability to perform real-time online testing, making it difficult to meet the needs for rapid testing and timely feedback of mud performance indicators in slurry shield tunneling.

Method used

A floating intelligent detection device for mud performance indicators was designed, including a floating carrier, a data processing and transmission module, a power and control module, and a detection module. It integrates a viscosity sensor, a density sensor, a colloid rate sensor, a sand content sensor, and a filtration loss sensor, and can detect mud performance indicators online in real time. The data is then uploaded to the ground control terminal in real time via a wireless transmission module.

Benefits of technology

It enables real-time, intelligent, and precise detection of mud performance indicators, providing accurate and timely data support, ensuring construction safety and efficiency, and avoiding errors and delays caused by manual sample collection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a floating type mud performance index intelligent detection device, and relates to the technical field of mud detection equipment, the floating type mud performance index intelligent detection device comprises a floating carrier, the top end of the floating carrier is provided with a data processing and transmission module, a power and control module and a detection module, and the detection module comprises a mounting seat; a mud pumping pipe and a mud discharging pipe are fixedly connected to the two sides of the mounting base respectively, a mud pumping pump is mounted on the outer wall of the mud pumping pipe, a mud discharging pump is mounted on the outer wall of the mud discharging pipe, and the mud pumping device further comprises a detection mechanism and a pumping mechanism. The floating type mud intelligent detection device can be directly placed in a mud circulation system, real-time online detection of mud performance indexes is achieved, manual sample collection is not needed, errors and hysteresis which may occur in the sample collection process are avoided, the actual performance state of mud can be reflected timely and accurately, and the detection accuracy is improved. And real-time data support is provided for mud performance adjustment in the construction process.
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Description

Technical Field

[0001] This invention relates to the field of mud testing equipment technology, specifically to a floating intelligent testing device for mud performance indicators. Background Technology

[0002] In slurry shield tunneling, slurry plays a crucial role in balancing ground pressure, carrying and transporting excavated soil, lubricating and cooling cutting tools, and forming a stable excavation face. Key performance indicators of slurry, such as density, viscosity, filtration loss, colloid content, and sand content, directly affect the safety and efficiency of shield tunneling.

[0003] Currently, mud performance testing mainly relies on traditional manual measurement methods and some single-function testing instruments. Traditional manual measurements, such as those using mud densitometers and funnel viscometers, have many drawbacks. The measurement process is cumbersome, requiring professionally trained operators. Furthermore, the measurement process is greatly affected by the operator's skill level and objective factors, resulting in low measurement accuracy and difficulty in guaranteeing the accuracy and consistency of test results. Simultaneously, manual measurements have low automation and poor real-time performance, failing to meet the needs for rapid testing and timely feedback of mud performance indicators in slurry shield tunneling construction. Moreover, some chemical reagents used in the measurement process can corrode the operator's skin, posing certain safety hazards.

[0004] While some single-function testing instruments have improved testing efficiency and accuracy to a certain extent, they suffer from limitations such as limited functionality and inability to simultaneously test multiple parameters. Furthermore, most of these instruments require manual collection of mud samples before delivery to the testing equipment, making it impossible to perform real-time testing during mud flow. Consequently, the test results cannot reflect the actual performance status of the mud in a timely manner, making it difficult to effectively guide the adjustment and optimization of mud performance during construction.

[0005] With the continuous development of slurry shield tunneling technology, the requirements for slurry performance testing are becoming increasingly stringent, creating an urgent need for a slurry testing device that can simultaneously detect multiple parameters, perform real-time online testing, and has a high degree of automation and high testing accuracy. Summary of the Invention

[0006] The purpose of this invention is to address the problems of low measurement accuracy, low efficiency, limited functionality, and inability to perform real-time online testing in existing mud testing methods. This invention provides a floating intelligent mud performance index testing device that enables real-time, intelligent, and accurate testing of key performance indicators such as mud density, viscosity, filtration loss, colloid content, and sand content during slurry shield tunneling. This provides accurate and timely mud performance data for shield tunneling, ensuring construction safety and efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a floating intelligent detection device for mud performance indicators, comprising a floating carrier, wherein a data processing and transmission module, a power and control module, and a detection module are disposed at the top of the floating carrier; the detection module includes a mounting base, and a mud suction pipe and a mud discharge pipe are fixedly connected to both sides of the mounting base respectively; a mud suction pump is installed on the outer wall of the mud suction pipe, and a mud discharge pump is installed on the outer wall of the mud discharge pipe; the mounting base performs mud detection operations through a detection mechanism, and the mud suction pipe performs mud extraction operations through an extraction mechanism; the detection mechanism includes a sampling chamber, and the sampling... The sampling chamber is located inside the mounting base. Five detection chambers are located inside the mounting base below the sampling chamber. A connecting groove is provided inside the mounting base between the sampling chamber and the detection chambers. A viscosity sensor, a density sensor, a colloid rate sensor, a sand content sensor, and a filtration loss sensor are respectively installed in the five detection chambers. An exhaust pipe is fixedly connected to the top of the mounting base. A first motor is installed at the top of the mounting base. A first threaded rod is connected to the output end of the first motor. A movable plate is slidably connected to the outer wall of the first threaded rod. Four partitions are fixedly connected to the bottom end of the movable plate.

[0008] As a further embodiment of the present invention: the detection mechanism further includes four partition frames, which are fixedly connected to the inner wall of the sampling chamber. The partition frames are located below the partition plate. A groove is formed at the bottom end of the inner wall of the partition frame. A horizontal plate is slidably connected to the inner wall of the groove. A first spring is connected between the horizontal plate and the groove. A first toothed rod is fixedly connected to one side of the movable plate. A baffle is rotatably connected to the inner wall of the connecting groove. A first spur gear is fixedly connected to one end of the baffle. A C-shaped block is slidably connected inside the mounting base above the first spur gear. A second spring is connected between the C-shaped block and the mounting base. A locking block is fixedly connected to the bottom end of the C-shaped block.

[0009] As a further embodiment of the present invention: the extraction mechanism includes a mounting plate, which is fixedly connected between the mounting base and the mud-drawing pipe. A second motor is mounted on the top of the mounting plate, and a second threaded rod is connected to the output end of the second motor. A movable tube is slidably connected between the second threaded rod and the outer wall of the mud-drawing pipe. A filter screen is installed at the bottom end of the movable tube. A connecting shaft is rotatably connected above the mud-drawing pipe. A second spur gear and a first bevel gear are fixedly connected to both ends of the connecting shaft, respectively. A square rod is rotatably connected to one side of the mud-drawing pipe. A second bevel gear is fixedly connected to the top end of the square rod. The first bevel gear is in contact with the second bevel gear. A rotating cylinder is rotatably connected inside the movable tube to one side of the mud-drawing pipe. The square rod is slidably connected to the inner wall of the rotating cylinder. A scraper is fixedly connected to the bottom end of the rotating cylinder. A second toothed rod is fixedly connected to the outer wall of the movable plate. The second toothed rod is in contact with the second spur gear.

[0010] As a further embodiment of the present invention: the outer wall of the movable plate is provided with a first threaded hole, which matches the first threaded rod.

[0011] As a further embodiment of the present invention: the bottom end of the card block engages with the first spur gear, and the end of the C-shaped block extending out of the mounting base is provided with an inclined surface.

[0012] As a further embodiment of the present invention: the outer wall of the first gear is provided with a first tooth groove, and the first tooth groove meshes with the first spur gear.

[0013] As a further embodiment of the present invention: the inner wall of the connecting groove is in contact with the outer wall of the baffle, and the outer wall of the partition is in contact with the inner walls of the partition frame and the groove.

[0014] As a further embodiment of the present invention: the outer wall of the movable tube is provided with a second threaded hole, which matches the second threaded rod.

[0015] As a further embodiment of the present invention: the outer wall of the second gear is provided with a second tooth groove, which meshes with the second spur gear.

[0016] As a further embodiment of the present invention: the first bevel gear meshes with the second bevel gear, and a square groove is provided at the top of the rotating cylinder, the inner wall of the square groove being in contact with the outer wall of the square rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The floating mud intelligent detection device of the present invention can be directly placed into the mud circulation system to realize real-time online detection of mud performance indicators without the need for manual sample collection, thus avoiding errors and lags that may occur during sample collection. It can reflect the actual performance status of the mud in a timely and accurate manner, and provide real-time data support for mud performance adjustment during construction. 2. By setting up a detection mechanism, the mud enters the sampling chamber through the mud suction pipe. The partition moves into the inner wall of the partition frame, dividing the inner cavity of the sampling chamber into five sections. The mud is evenly divided into five parts. Then, the baffle rotates to open the connecting groove. The mud in the sampling chamber flows evenly into the detection chamber through the connecting groove. The viscosity sensor, density sensor, colloid rate sensor, sand content sensor and filtration loss sensor in the detection chamber detect the mud, which facilitates the even distribution of the mud into the five detection chambers for detection. 3. By setting up an extraction mechanism, the second motor drives the movable tube to move into the mud. The mud enters the mud extraction pipe through the movable tube. The filter screen filters the mud to prevent stones and other debris from being extracted along with the mud. When the movable plate moves, the scraper rotates and contacts the filter screen, scraping off the debris adhering to the filter screen to prevent the debris from clogging the filter screen and to facilitate the filtration of the mud. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the detection module of the present invention; Figure 3 This is a cross-sectional view of the mounting base of the present invention; Figure 4 This is a cross-sectional view of the separator frame of the present invention; Figure 5 This is a schematic diagram of the installation of the C-shaped block of the present invention; Figure 6 This is a schematic diagram of the C-shaped block of the present invention; Figure 7 This is a schematic diagram of the installation of the movable tube of the present invention; Figure 8 This is a cross-sectional view of the active tube of the present invention; Figure 9 This is a cross-sectional view of the rotating cylinder of the present invention; Figure 10 This is a schematic diagram of the power and control module of the present invention.

[0019] In the diagram: 1. Floating carrier; 2. Data processing and transmission module; 3. Power and control module; 4. Mounting base; 5. Mud suction pipe; 6. Mud suction pump; 7. Detection mechanism; 701. Sampling chamber; 702. Connecting groove; 703. Detection chamber; 704. Exhaust pipe; 705. First motor; 706. First threaded rod; 707. Movable plate; 708. Partition plate; 709. Separator frame; 710. Groove; 711. Horizontal plate; 712. First spring; 713. First rack; 714. Baffle; 715. First spur gear; 716. C-block; 717. Second spring; 718. Locking block; 8. Extraction mechanism; 801. Mounting plate; 802. Second motor; 803. Second threaded rod; 804. Movable tube; 805. Filter screen; 806. Second rack; 807. Second spur gear; 808. Connecting shaft; 809. First bevel gear; 810. Second bevel gear; 811. Square rod; 812. Rotating cylinder; 813. Scraper; 9. Sludge discharge pipe; 10. Sludge discharge pump; 11. Viscosity sensor; 12. Density sensor; 13. Colloid content sensor; 14. Sand content sensor; 15. Filtration loss sensor; 16. Battery pack; 17. Drive unit; 18. Drive circuit board; 19. Control circuit; 20. Waterproof cover. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0022] Please see Figures 1 to 10 In this embodiment of the invention, the floating mud performance index intelligent detection device includes a floating carrier 1. The top of the floating carrier 1 is provided with a data processing and transmission module 2, a power and control module 3 and a detection module. The detection module includes a mounting base 4. A mud suction pipe 5 and a mud discharge pipe 9 are fixedly connected to both sides of the mounting base 4. A mud suction pump 6 is installed on the outer wall of the mud suction pipe 5 and a mud discharge pump 10 is installed on the outer wall of the mud discharge pipe 9. The mounting base 4 performs mud detection operation through the detection mechanism 7, and the mud suction pipe 5 performs mud extraction operation through the extraction mechanism 8.

[0023] In this embodiment: the floating carrier 1 adopts a streamlined appearance optimization design to reduce the resistance of mud flow. Its internal cavity structure and buoyancy adjustment system enable the device to float stably on the mud surface, ensuring the consistency of the immersion depth of the detection module; the detection module, as the core functional unit, completes the real-time acquisition of multiple parameters such as viscosity, density, and sand content; the data processing and transmission module 2 integrates signal amplification, analog-to-digital conversion, and data encoding functions, converting the acquired analog signals into digital signals and uploading them to the ground control terminal in real time through wireless transmission technology, thus constructing a closed-loop data flow of "acquisition-processing-transmission"; the power and control module 3, as the execution unit, receives terminal commands and precisely regulates the drive system to realize the movement, hovering, and detection attitude adjustment of the device, ensuring the automation and intelligence of multi-module collaborative operation; The data processing and transmission module 2 adopts a circular integrated design. Through the built-in signal processing chip and antenna array, it realizes high-speed data processing and long-distance transmission in a limited space. Its layout is close to the detection module to shorten the signal transmission path and reduce interference. The power and control module 3 adopts a rectangular package and is mechanically connected to the drive system to realize direct response of power output and attitude control. The electromagnetic shielding structure between the modules reduces signal crosstalk and ensures the stability of the device in complex electromagnetic environments. This reflects the dual consideration of functional coordination and anti-interference performance in the layout design. The power and control module 3 is designed with an integrated approach. The battery pack 16 serves as the energy supply unit, with parameters specified as 12V / 20Ah, meeting the device's requirement for stable operation for more than 24 hours continuously, providing basic power assurance for power output and signal acquisition. The drive unit 17 drives the casters via mechanical connection, enabling flexible movement and position adjustment of the device in the mud environment, adapting to the spatial requirements of different detection points. The drive circuit board 18 is responsible for signal conversion and command transmission, converting control commands into drive signals to ensure the timely response of the power system. The control circuit 19, as the logic control core, integrates signal processing, command parsing, and feedback adjustment functions, and can dynamically adjust the power output according to the mud environment parameters. The waterproof cover 20 adopts an IP68 protection rating design, blocking the intrusion of mud and water through a sealed structure, ensuring the electrical insulation and mechanical stability of the module in harsh and humid environments, meeting the stringent protection requirements of mud detection scenarios.

[0024] Please refer to this carefully. Figures 2 to 6The testing mechanism 7 includes a sampling chamber 701, which is located inside the mounting base 4. Five testing chambers 703 are located below the sampling chamber 701 inside the mounting base 4. A connecting groove 702 is located between the sampling chamber 701 and the testing chambers 703 inside the mounting base 4. A viscosity sensor 11, a density sensor 12, a colloid content sensor 13, a sand content sensor 14, and a filtration loss sensor 15 are respectively installed in the five testing chambers 703. An exhaust pipe 704 is fixedly connected to the top of the mounting base 4. A first motor 705 is mounted on the top of the mounting base 4. A first threaded rod 706 is connected to the output end of the first motor 705. A movable plate 707 is slidably connected to the outer wall of the first threaded rod 706. Four partitions 708 are fixedly connected to the bottom end of the movable plate 707. The testing mechanism 7 also includes four partition frames 709. The partition frames 709 are fixedly connected to the inner wall of the sampling chamber 701. The partition frames 709 are located below the partition plate 708. The bottom of the inner wall of the partition frame 709 is provided with a groove 710. A horizontal plate 711 is slidably connected to the inner wall of the groove 710. A first spring 712 is connected between the horizontal plate 711 and the groove 710. A first toothed rod 713 is fixedly connected to one side of the movable plate 707. A baffle 714 is rotatably connected to the inner wall of the connecting groove 702. A first spur gear 715 is fixedly connected to one end of the baffle 714. A C-shaped block 716 is slidably connected to the inside of the mounting base 4 above the first spur gear 715. A second spring 717 is connected between the C-shaped block 716 and the mounting base 4. A locking block 718 is fixedly connected to the bottom of the C-shaped block 716.

[0025] In this embodiment: the mud pump 6 operates, driving mud through the mud pumping pipe 5 into the sampling chamber 701. At this time, the baffle 714 closes the connecting groove 702, and the locking block 718 engages with the first spur gear 715, fixing the first spur gear 715. Then, the first motor 705 is started, driving the first threaded rod 706 to rotate. The rotation of the first threaded rod 706 causes the movable plate 707 to move. The movement of the movable plate 707 causes the partition 708 and the first toothed rod 713 to move. The partition 708 moves into the inner wall of the partition frame 709 and then into the groove 710, thereby dividing the inner cavity of the sampling chamber 701 into five sections, dividing the mud into five equal parts. Then, the first toothed rod 713 continues to move and contacts the C-shaped block 716, pushing the C-shaped block 716 to move, thus affecting the second spring. Spring 717 causes compression, C-shaped block 716 displaces and drives locking block 718 to displace, locking block 718 separates from first spur gear 715, releasing the fixation of first spur gear 715; first toothed rod 713 contacts first spur gear 715, first toothed rod 713 displaces and drives first spur gear 715 to rotate, first spur gear 715 rotates and drives baffle 714 to rotate, baffle 714 rotates and opens connecting groove 702, mud in sampling chamber 701 flows evenly into detection chamber 703 through connecting groove 702, viscosity sensor 11, density sensor 12, colloid rate sensor 13, sand content sensor 14 and filtration loss sensor 15 in detection chamber 703 perform mud detection operation; after detection, mud discharge pump 10 is started, mud in detection chamber 703 is discharged through mud discharge pipe 9.

[0026] Please refer to this carefully. Figures 7 to 9 The extraction mechanism 8 includes a mounting plate 801, which is fixedly connected between the mounting base 4 and the mud extraction pipe 5. A second motor 802 is mounted on the top of the mounting plate 801. A second threaded rod 803 is connected to the output end of the second motor 802. A movable tube 804 is slidably connected between the second threaded rod 803 and the outer wall of the mud extraction pipe 5. A filter screen 805 is mounted on the bottom end of the movable tube 804. A connecting shaft 808 is rotatably connected above the mud extraction pipe 5. A second spur gear 807 and a first bevel gear 808 are fixedly connected to the two ends of the connecting shaft 808, respectively. 09. A square rod 811 is rotatably connected to one side of the mud suction pipe 5. A second bevel gear 810 is fixedly connected to the top of the square rod 811. A first bevel gear 809 is in contact with the second bevel gear 810. A rotating cylinder 812 is rotatably connected to the inside of the movable pipe 804 located on one side of the mud suction pipe 5. The square rod 811 is slidably connected to the inner wall of the rotating cylinder 812. A scraper 813 is fixedly connected to the bottom of the rotating cylinder 812. A second toothed rod 806 is fixedly connected to the outer wall of the movable plate 707. The second toothed rod 806 is in contact with the second spur gear 807.

[0027] In this embodiment: when the mud is being extracted, the second motor 802 is started. The operation of the second motor 802 drives the second threaded rod 803 to rotate. The rotation of the second threaded rod 803 drives the movable tube 804 to move. The movable tube 804 slides along the mud extraction tube 5 into the mud. The mud enters the mud extraction tube 5 through the movable tube 804. The filter screen 805 filters the mud to prevent stones and other debris from being extracted along with the mud. When the movable plate 707 moves, it causes the second gear 806 to move as well. The movement of the second gear 806 causes the second spur gear 807 to rotate. The rotation of the second spur gear 807 causes the connecting shaft 808 to rotate. The rotation of the connecting shaft 808 causes the first bevel gear 809 to rotate. The rotation of the first bevel gear 809 causes the second bevel gear 810 to rotate. The rotation of the second bevel gear 810 causes the square rod 811 to rotate. The rotation of the square rod 811 causes the rotating cylinder 812 to rotate. The rotation of the rotating cylinder 812 causes the scraper 813 to rotate. The scraper 813 rotates and comes into contact with the filter screen 805, scraping off the debris adhering to the filter screen 805 and preventing the debris from clogging the filter screen 805.

[0028] Please refer to this carefully. Figures 2 to 6 The outer wall of the movable plate 707 is provided with a first threaded hole, which matches the first threaded rod 706.

[0029] In this embodiment: the first motor 705 drives the first threaded rod 706 to rotate, the rotation of the first threaded rod 706 drives the movable plate 707 to move, and the movement of the movable plate 707 drives the partition plate 708 and the first toothed rod 713 to move.

[0030] Please refer to this carefully. Figures 2 to 6 The bottom end of the locking block 718 engages with the first spur gear 715, and the C-shaped block 716 extends out of the mounting base 4 and has a bevel.

[0031] In this embodiment: the locking block 718 engages with the first spur gear 715, fixing the first spur gear 715; the first toothed rod 713 continues to move and contacts the C-shaped block 716, pushing the C-shaped block 716 to move, causing compression on the second spring 717; the displacement of the C-shaped block 716 drives the locking block 718 to move, and the locking block 718 separates from the first spur gear 715, thus canceling the fixing of the first spur gear 715.

[0032] Please refer to this carefully. Figures 2 to 6 The outer wall of the first toothed rod 713 is provided with a first tooth groove, which meshes with the first spur gear 715.

[0033] In this embodiment: the first rack 713 contacts the first spur gear 715, and the displacement of the first rack 713 drives the first spur gear 715 to rotate.

[0034] Please refer to this carefully. Figures 2 to 6 The inner wall of the connecting groove 702 is in contact with the outer wall of the baffle 714, and the outer wall of the partition 708 is in contact with the inner walls of the partition frame 709 and the groove 710.

[0035] In this embodiment: after the partition 708 moves into the inner wall of the partition frame 709, it enters the groove 710, thereby dividing the inner cavity of the sampling chamber 701 into five parts, and the mud is divided into five equal parts; the first spur gear 715 rotates to drive the baffle 714 to rotate, and the rotation of the baffle 714 opens the connecting groove 702.

[0036] Please refer to this carefully. Figures 7 to 9 The outer wall of the movable tube 804 is provided with a second threaded hole, which matches the second threaded rod 803.

[0037] In this embodiment: the second motor 802 drives the second threaded rod 803 to rotate, the rotation of the second threaded rod 803 drives the movable tube 804 to move, and the movable tube 804 slides into the mud along the mud suction pipe 5.

[0038] Please refer to this carefully. Figures 7 to 9 The outer wall of the second gear 806 is provided with a second tooth groove, which meshes with the second spur gear 807.

[0039] In this embodiment: when the movable plate 707 is displaced, the displacement of the movable plate 707 causes the second rack 806 to be displaced, the displacement of the second rack 806 causes the second spur gear 807 to rotate, and the rotation of the second spur gear 807 causes the connecting shaft 808 to rotate.

[0040] Please refer to this carefully. Figures 7 to 9 The first bevel gear 809 meshes with the second bevel gear 810. The top of the rotating cylinder 812 is provided with a square groove, and the inner wall of the square groove is in contact with the outer wall of the square rod 811.

[0041] In this embodiment: the rotation of the connecting shaft 808 drives the first bevel gear 809 to rotate, the rotation of the first bevel gear 809 drives the second bevel gear 810 to rotate, the rotation of the second bevel gear 810 drives the square rod 811 to rotate, the rotation of the square rod 811 drives the rotating cylinder 812 to rotate, and the rotation of the rotating cylinder 812 drives the scraper 813 to rotate; when the movable pipe 804 slides along the mud suction pipe 5, the square rod 811 slides in the square groove.

[0042] Working principle: When this floating intelligent mud detection device is placed in the mud circulation system of a mud-water shield tunneling project, the floating carrier 1 floats on the surface of the mud by relying on the buoyancy adjustment chamber and its own buoyancy characteristics. The power and control module 3 drives the casters to move the detection device to a suitable detection position in the mud according to the preset program or the instructions of the ground control center.

[0043] The sensors in the detection module begin to operate, performing real-time monitoring of performance indicators of the mud, such as density, viscosity, filtration loss, colloid content, and sand content. Density sensor 12 calculates mud density by measuring the buoyancy difference; viscosity sensor 11 calculates mud viscosity by measuring rotor torque; filtration loss sensor 15 calculates filtration loss by monitoring pressure changes and filter paper permeation; colloid content sensor 13 calculates colloid content by analyzing differences in optical properties; and sand content sensor 14 calculates sand content by analyzing ultrasonic signals.

[0044] The data collected by the detection module is transmitted to the data processing and transmission module 2 in real time. The data processing unit processes and analyzes the data, converts it into accurate mud performance index values, and performs filtering, calibration and other processing. The processed data is then sent to the ground control center in real time through the wireless transmission unit.

[0045] Based on the received mud performance data, the staff at the ground control center determine whether the mud performance meets the construction requirements. If it does not meet the requirements, they can send instructions to the power and control module of the detection device through the ground control center to adjust the detection position of the detection device or control the mud circulation system to make corresponding adjustments, such as adding additives to adjust the mud performance. At the same time, the staff can also analyze and predict the trend of mud performance changes based on historical and real-time data, and take measures in advance to prevent construction risks. The floating intelligent mud detection device of the present invention can be directly placed into the mud circulation system to realize real-time online detection of mud performance indicators without the need for manual sample collection, thus avoiding errors and lags that may occur during sample collection. It can reflect the actual performance status of the mud in a timely and accurate manner, providing real-time data support for mud performance adjustment during construction.

[0046] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A floating mud performance index intelligent detection device, characterized in that, The system includes a floating carrier (1), with a data processing and transmission module (2), a power and control module (3), and a detection module at its top. The detection module includes a mounting base (4), with a mud suction pipe (5) and a mud discharge pipe (9) fixedly connected to its two sides. A mud suction pump (6) is installed on the outer wall of the mud suction pipe (5), and a mud discharge pump (10) is installed on the outer wall of the mud discharge pipe (9). The mounting base (4) performs mud detection operations through a detection mechanism (7), and the mud suction pipe (5) performs mud extraction operations through an extraction mechanism (8). The detection mechanism (7) includes a sampling chamber (701), which is located inside the mounting base (4). The interior of the mounting base (4) is located within the sampling chamber (701). Five detection chambers (703) are provided below the mounting base (4). A connecting groove (702) is provided inside the mounting base (4) between the sampling chamber (701) and the detection chamber (703). A viscosity sensor (11), a density sensor (12), a colloid rate sensor (13), a sand content sensor (14), and a filtration loss sensor (15) are respectively installed in the five detection chambers (703). An exhaust pipe (704) is fixedly connected to the top of the mounting base (4). A first motor (705) is installed at the top of the mounting base (4). A first threaded rod (706) is connected to the output end of the first motor (705). A movable plate (707) is slidably connected to the outer wall of the first threaded rod (706). Four partitions (708) are fixedly connected to the bottom end of the movable plate (707).

2. The intelligent detection device for floating mud performance indicators according to claim 1, characterized in that, The detection mechanism (7) further includes four partition frames (709), which are fixedly connected to the inner wall of the sampling chamber (701). The partition frames (709) are located below the partition plate (708). A groove (710) is provided at the bottom of the inner wall of the partition frame (709). A horizontal plate (711) is slidably connected to the inner wall of the groove (710). A first spring (712) is connected between the horizontal plate (711) and the groove (710). The movable plate (707) A first toothed rod (713) is fixedly connected to one side of the connecting groove (702). A baffle (714) is rotatably connected to the inner wall of the connecting groove (702). A first spur gear (715) is fixedly connected to one end of the baffle (714). A C-shaped block (716) is slidably connected to the inside of the mounting base (4) above the first spur gear (715). A second spring (717) is connected between the C-shaped block (716) and the mounting base (4). A locking block (718) is fixedly connected to the bottom end of the C-shaped block (716).

3. The intelligent detection device for floating mud performance indicators according to claim 2, characterized in that, The extraction mechanism (8) includes a mounting plate (801), which is fixedly connected between the mounting base (4) and the mud extraction pipe (5). A second motor (802) is mounted on the top of the mounting plate (801). A second threaded rod (803) is connected to the output end of the second motor (802). A movable tube (804) is slidably connected between the second threaded rod (803) and the outer wall of the mud extraction pipe (5). A filter screen (805) is mounted on the bottom end of the movable tube (804). A connecting shaft (808) is rotatably connected above the mud extraction pipe (5). A second spur gear (807) and a first bevel gear (809) are fixedly connected to both ends of the connecting shaft (808). A square rod (811) is rotatably connected to one side of the mud-drawing pipe (5). A second bevel gear (810) is fixedly connected to the top of the square rod (811). The first bevel gear (809) is in contact with the second bevel gear (810). A rotating cylinder (812) is rotatably connected to the inside of the movable pipe (804) located on one side of the mud-drawing pipe (5). The square rod (811) is slidably connected to the inner wall of the rotating cylinder (812). A scraper (813) is fixedly connected to the bottom end of the rotating cylinder (812). A second toothed rod (806) is fixedly connected to the outer wall of the movable plate (707). The second toothed rod (806) is in contact with the second spur gear (807).

4. The intelligent detection device for floating mud performance indicators according to claim 2, characterized in that, The outer wall of the movable plate (707) is provided with a first threaded hole, which matches the first threaded rod (706).

5. The intelligent detection device for floating mud performance indicators according to claim 2, characterized in that, The bottom end of the locking block (718) engages with the first spur gear (715), and the C-shaped block (716) extends out of the mounting base (4) and is provided with an inclined surface.

6. The intelligent detection device for floating mud performance indicators according to claim 2, characterized in that, The outer wall of the first gear (713) is provided with a first tooth groove, which meshes with the first spur gear (715).

7. The intelligent detection device for floating mud performance indicators according to claim 2, characterized in that, The inner wall of the connecting groove (702) is in contact with the outer wall of the baffle (714), and the outer wall of the partition (708) is in contact with the inner walls of the partition frame (709) and the groove (710).

8. The intelligent detection device for floating mud performance indicators according to claim 3, characterized in that, The outer wall of the movable tube (804) is provided with a second threaded hole, which matches the second threaded rod (803).

9. The intelligent detection device for floating mud performance indicators according to claim 3, characterized in that, The outer wall of the second gear (806) is provided with a second tooth groove, which meshes with the second spur gear (807).

10. The intelligent detection device for floating mud performance indicators according to claim 3, characterized in that, The first bevel gear (809) meshes with the second bevel gear (810), and the top of the rotating cylinder (812) is provided with a square groove, the inner wall of the square groove is in contact with the outer wall of the square rod (811).