CN117146203A - A self-powered vibration control and monitoring device surrounding steel ropes - Google Patents

Abstract

The invention relates to a self-powered vibration control and monitoring device surrounding a steel rope for hydraulic pipelines. The device includes a steel rope, a pulley bearing, a steel rope fixing and adjusting device, a mounting frame, a vibrator, a coil, a magnet, an energy management and Controller and vibration sensor, the steel rope is wound around the pulley bearing and wound on the mounting frame, the vibrator is constrained within the mounting frame, the coil is wound on the vibrator, and the magnets are nested at both ends of the mounting frame; when the hydraulic pipeline vibrates, the vibrator suppresses it , the coil generates electricity, and the electricity is used by the vibration sensor. The data collected by the vibration sensor is processed by the energy management and controller and then transmitted to the processing end for analysis. Compared with the existing technology, the present invention not only reduces the radial vibration amplitude of the hydraulic pipeline, but also converts the vibration into electrical energy to power the sensor; realizes self-powered real-time monitoring of the vibration state of the hydraulic pipeline; adopts an electromagnetic induction generator mechanism to improve advantages such as energy harvesting efficiency.

Description

A self-powered vibration control and monitoring device surrounding steel ropes

Technical field

The present invention relates to vibration control, and in particular to a self-powered vibration control and monitoring device surrounding a steel rope.

Background technique

Hydraulic pipelines are a very important component of hydraulic transmission systems and are widely used in aerospace, petroleum transportation, nuclear reactor components and other engineering fields. However, the hydraulic system will be affected by internal fluid-solid coupling and external environmental factors to produce vibrations, resulting in problems such as damage and leakage. In order to improve the service life of hydraulic pipelines and save manpower and material resources, it is necessary to reduce the vibration amplitude of hydraulic pipelines and conduct real-time vibration monitoring. Real-time monitoring of pipelines can detect pipeline failures and leaks in a timely manner, thereby avoiding unexpected situations. Traditional sensors are mainly powered by cables and batteries. However, the working environment of hydraulic pipelines is harsh, making it inconvenient to lay cables. The battery power is limited, which is unsustainable and pollutes the environment.

After searching, application publication number CN114659739A discloses a self-powered structure based on magnetic force and triboelectric effect, specifically disclosed: including an external unit, an upper unit and a lower unit. The outer unit consists of an upper magnetic plate and a ring-shaped protective shell. The upper unit includes a large-diameter hollow cylinder, a small-diameter hollow cylinder and a movable magnetic cylinder, and their surfaces are coated with a triboelectric material layer A. The lower unit includes a ring plate unit and a base unit. The annular plate unit includes a small-diameter annular plate, a medium-diameter annular plate, and a large-diameter annular plate, and their surfaces are coated with a triboelectric material layer B. The upper unit and the lower unit are embedded in each other through independent gaps. When the upper unit is subjected to axial vibration, they maintain a long-term regular sliding up and down under the mutual repulsion of magnets with the same polarity, causing the triboelectric material layer A to interact with the triboelectric material layer A. Material layers B rub against each other to generate charge and voltage signals, achieving the purpose of generating electrical energy and vibration sensing.

However, this device is suitable for environmental monitoring in remote and complex environments, such as bridges, dams, offshore wind turbines, oceans, etc. It is not suitable for hydraulic pipelines, and the device only has a monitoring function and cannot control the vibration of the pipeline. . Therefore, how to simultaneously control the vibration of hydraulic pipelines and monitor their operating status in real time is of great significance to practical engineering.

Contents of the invention

The purpose of the present invention is to provide a self-powered vibration control and monitoring device that surrounds a steel rope to overcome the above-mentioned shortcomings of the prior art.

The object of the present invention can be achieved through the following technical solutions:

According to one aspect of the present invention, a self-powered vibration control and monitoring device surrounding a steel rope is provided for hydraulic pipelines. The device includes a steel rope, a pulley bearing, a steel rope fixing and adjusting device, a mounting frame, a vibrator, and a coil. , magnets, energy management and controllers and vibration sensors, the steel rope goes around the pulley bearing and is wound on the installation frame through the steel rope fixing and adjustment device, the vibrator is constrained in the installation frame by the steel rope, the The coil is wrapped around the vibrator, and the magnets are nested at both ends of the installation frame; when the energy management and controller are installed on the hydraulic pipeline, the electricity is stored and used by the vibration sensor connected to it, and the vibration sensor collects The data is processed by the energy management and controller and then transmitted to the processing end for analysis.

As a preferred technical solution, at least one of the devices is installed on the hydraulic pipeline.

As a preferred technical solution, the installation frame includes an upper installation frame and a lower installation frame. The upper installation frame is provided with a frame quick installation slot, and the lower installation frame is provided with a frame quick installation hook. The quick installation slot and the quick installation hook of the frame are interlocked to fix the installation frame on the hydraulic pipeline.

As a preferred technical solution, the pulley bearings are located at both ends of the installation frame, and protrusions are provided on both sides of the installation frame. The protrusions are located on the inside of the pulley bearing, and steel rope through holes are evenly distributed on them.

As a preferred technical solution, there are at least 4 pulley bearings. The steel rope passes through the steel rope through hole and bypasses the pulley bearing. It is divided into several sections of equal length by the pulley bearing, and the tension of each section is the same. .

As a preferred technical solution, the steel rope fixing and adjusting device includes a steel rope fixing piece, a steel rope fixing support, a steel rope fixing bolt and a steel rope adjusting bolt. The steel rope fixing piece and the steel rope fixing support pass through The steel rope fixing bolts clamp the two ends of the steel rope, and the tension of each section of the steel rope is controlled to be the same by rotating the steel rope adjusting bolt to adapt to the different vibration frequencies of the hydraulic pipeline.

As a preferred technical solution, the steel rope limits the axial movement of the vibrator along the hydraulic pipeline.

As a preferred technical solution, the vibrator and coil move in the y direction and z direction under the restoring force of the steel rope, and move to cut the magnetic field lines in the magnetic field generated by the magnet, causing current to be generated in the closed circuit; at the same time, online When the coil moves in the magnetic field, the induced current will cause the conductor to be subject to Ampere force and hinder the movement of the coil, that is, electromagnetic damping, thereby reducing the vibration threshold of the hydraulic pipeline in the y and z directions under different excitation frequencies.

As a preferred technical solution, the energy management and controller converts the bidirectional irregular alternating current generated by the coil into unidirectional pulsating direct current and stores it in the battery.

As a preferred technical solution, the energy management and controller stores and processes the data collected by the vibration sensor and transmits it to the processing end. By analyzing and processing the data, the type and location of pipeline faults are identified, thereby realizing the operation status of the pipeline. diagnosis and prediction.

Compared with the prior art, the present invention has the following advantages:

1) The present invention is a dual-purpose device, which can not only dampen the vibration of the hydraulic pipeline, but also monitor the vibration of the hydraulic pipeline in real time;

2) The present invention is both a vibration-absorbing unit and a power-generating unit. The steel rope drives the vibrator to reciprocate between the magnets, which not only reduces the radial vibration amplitude of the hydraulic pipeline, achieves broadband vibration reduction, but also converts harmful vibration energy of the hydraulic pipeline. Powers the electric energy sensor, collects the vibration energy and status information of the hydraulic pipeline, and improves the flexibility of electric power use and device performance;

3) The structure of the invention is simple and exquisite and independent of the hydraulic pipeline; it has a high degree of integration, and the device can perform energy processing, vibration monitoring and wireless transmission to realize self-powered real-time monitoring of the vibration status of the hydraulic pipeline;

4) The present invention adopts electromagnetic induction generator mechanism to improve energy collection efficiency.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of a self-powered vibration control and monitoring device surrounding a steel rope according to the present invention;

Figure 2 is an exploded view of a self-powered vibration control and monitoring device surrounding a steel rope according to the present invention;

Figure 3 is a schematic diagram of the arrangement of magnets and vibrators of the present invention;

Figure 4 is a schematic diagram of the steel rope fixing and adjusting device of the present invention;

Figure 5 is a schematic diagram of the installation of a self-powered vibration control and monitoring device surrounding a steel rope according to the present invention;

The numbers in Figure 1 indicate:

1. Hydraulic pipeline, 2. Steel rope, 3. Pulley bearing, 4. Steel rope fixing and adjusting device, 5. Installation frame, 7. Coil, 8. Magnet, 9. Energy management and controller, 10. Vibration sensor;

The numbers in Figure 2 indicate:

50. Upper mounting frame, 500. Frame quick mounting slot, 51. Lower mounting frame, 510. Frame quick mounting hook, 52. Steel rope through hole, 6. Vibrator;

The numbers in Figure 4 indicate:

40. Steel rope fixing piece, 41. Steel rope fixing support, 42. Steel rope fixing bolt, 43. Steel rope adjusting bolt.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present invention.

The invention provides a self-powered vibration control and monitoring device that surrounds a steel rope, which can reduce the vibration threshold of a hydraulic pipeline under complex excitation, convert the energy generated when the hydraulic pipeline vibrates into electrical energy and use it to drive a sensor, thereby realizing the control of the pipeline. Real-time monitoring to improve its safety and reliability in harsh environments. The present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figure 1, the present invention is mainly used on hydraulic pipeline 1, including steel rope 2, pulley bearing 3, steel rope fixing and adjusting device 4, mounting frame 5, vibrator 6, coil 7, magnet 8, energy management and control 9 and vibration sensor 10.

As shown in Figures 2 and 3, the mounting frame 5 includes an upper mounting frame 50 and a lower mounting frame 51. Pulley bearings 3 are installed at both ends of the mounting frame 5. At least four pulley bearings 3 are installed, respectively located on the upper mounting frame 50 and the lower mounting frame 51. At both ends of the lower mounting frame 51, the mounting frame 5 inside the pulley bearing 3 is provided with protrusions, and steel rope through holes 52 are evenly distributed on the circumference of the protrusions; the upper mounting frame 50 is provided with a frame quick installation slot 500, and the lower part is provided with a frame quick installation slot 500. The installation frame 51 is provided with a frame quick installation hook 510. The frame quick installation slot 500 and the frame quick installation hook 510 fix the installation frame 5 on the hydraulic pipe 1 in an interlocking manner. The steel rope 2 passes through the steel rope through hole 52. And bypassing the pulley bearing 3, the steel rope fixing and adjusting device 4 is tightened and fixed between the upper mounting frame 50 and the lower mounting frame 51. The steel rope 2 is divided into several sections of equal length by the pulley bearing 3, and the tension of each section is The tightening force is the same; there are steel rope through holes 52 evenly distributed on the circumference of the vibrator 6, and the steel rope 2 passes through the steel rope through holes 52 evenly distributed on the circumference of the vibrator 6 to fix the vibrator 6 between the upper mounting frame 50 and the lower mounting frame 51. ; The coil 7 is wound around the vibrator 6, and there are two magnets 8, which are respectively nested at both ends of the installation frame 5, and the magnetic poles of different names are installed opposite each other.

As shown in Figure 4, the steel rope fixing and adjusting device 4 includes a steel rope fixing piece 40, a steel rope fixing support 41, a steel rope fixing bolt 42 and a steel rope adjusting bolt 43. The two ends of the steel rope 2 are fixed by the steel rope. The piece 40 is clamped with the steel rope fixed support 41, and the steel rope fixed bolts 42 fix the steel rope 2. The steel rope 2 is evenly arranged along the circumferential direction of the upper mounting frame 50 and the lower mounting frame 51, and is adjusted by twisting the steel rope. The bolts 43 can make the tension of each section the same to adapt to the different vibration frequencies of the hydraulic pipeline 1 .

As shown in Figure 5, at least one of the self-powered vibration control and monitoring devices surrounding the steel rope provided by the present invention is installed on the hydraulic pipeline 1, and three are installed in the figure; when installed, multiple devices are installed along the axis of the hydraulic pipeline 1 Arrange to array.

When a self-powered vibration control and monitoring device surrounding a steel rope is working, when the hydraulic pipe 1 vibrates due to external excitation, the vibrator 6 and the coil 7 move along the y and z directions under the restoring force of the steel rope 2, and the vibrator 6 jumps back and forth between magnets 8, cutting the magnetic field lines in the magnetic field generated by magnet 8, causing the magnetic flux of coil 7 to change, coil 7 generates electricity due to electromagnetic induction, and generates current in the closed circuit; the bidirectional flow generated by coil 7 The irregular alternating current is converted into unidirectional pulsating direct current through the energy management and controller 9 and stored in the battery. The stored power is transmitted to the vibration sensor 10 for use; at the same time, when the coil 7 moves in the magnetic field, the induced current causes the conductor to It is subjected to Ampere force and hinders the movement of the coil 7, that is, electromagnetic damping. In this way, the vibration threshold of the hydraulic pipeline 1 in the y direction and z direction under different excitation frequencies is reduced, and the vibration reduction effect is achieved. When the hydraulic pipeline 1 vibrates, the vibrator 6 moves in the y direction and z direction. The vibration sensor 10 transmits the vibration data to the energy management and controller 9. The energy management and controller 9 stores and processes the data and transmits it to the processing end. , such as the computer terminal, by analyzing and processing data, identifying the type and location of pipeline faults, thereby realizing diagnosis and prediction of pipeline operating status, thereby completing self-powered real-time vibration monitoring.

The present invention can utilize the energy generated when the hydraulic pipeline 1 vibrates at 360° in the yOz plane, and responds at different excitation frequencies, thus improving the energy collection efficiency; moreover, the present invention drives the vibrator 6 between the magnet 8 through the steel rope 2 The reciprocating motion causes the coil 7 to generate electricity due to electromagnetic induction, and continuously supplies power to the vibration sensor 10 through the energy management and controller 9, which facilitates rapid processing and collection of signals, thereby realizing self-powered vibration monitoring; in addition, the present invention uses the vibrator 6 in the yOz plane The internal movement reduces the lateral vibration amplitude of the hydraulic pipeline 1 and achieves broadband vibration absorption under different excitation frequencies.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalent methods within the technical scope disclosed in the present invention. Modifications or substitutions shall be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. A self-powered vibration control and monitoring device surrounding a steel rope for hydraulic pipelines (1), characterized in that the device includes a steel rope (2), a pulley bearing (3), and a steel rope fixing and adjusting device ( 4), installation frame (5), vibrator (6), coil (7), magnet (8), energy management and controller (9) and vibration sensor (10), the steel rope (2) bypasses the pulley bearing (3) and is wound around the installation frame (5) through the steel rope fixing and adjusting device (4). The vibrator (6) is constrained in the installation frame (5) by the steel rope (2), and the coil (6) 7) Wrap around the vibrator (6), and the magnet (8) is nested at both ends of the installation frame (5); when the energy management and controller (9) is installed on the hydraulic pipeline (1), the electricity is transferred It is stored and used by the vibration sensor (10) connected to it. The data collected by the vibration sensor (10) is processed by the energy management and controller (9) and then transmitted to the processing end for analysis. 2. A self-powered vibration control and monitoring device surrounding a steel rope according to claim 1, characterized in that at least one of the devices is installed on the hydraulic pipeline (1). 3. A surrounding steel rope type self-powered vibration control and monitoring device according to claim 1, characterized in that the installation frame (5) includes an upper installation frame (50) and a lower installation frame (51), The upper mounting frame (50) is provided with a frame quick installation slot (500), the lower mounting frame (51) is provided with a frame quick installation hook (510), the frame quick installation slot (500) and The frame quick installation hooks (510) are interlocked to fix the installation frame (5) on the hydraulic pipe (1). 4. A surrounding steel rope type self-powered vibration control and monitoring device according to claim 1, characterized in that the pulley bearings (3) are located at both ends of the installation frame (5), and the installation frame (5 ) are provided with protrusions on both sides, the protrusions are located inside the pulley bearing (3), and steel rope through holes (52) are evenly distributed on them. 5. A self-powered vibration control and monitoring device surrounding a steel rope according to claim 4, characterized in that there are at least four pulley bearings (3), and the steel rope (2) passes through the steel rope. The rope passes through the hole (52) and goes around the pulley bearing (3), and is divided into several sections of equal length by the pulley bearing (3), and the tension of each section is the same. 6. A self-powered vibration control and monitoring device surrounding a steel rope according to claim 5, characterized in that the steel rope fixing and adjusting device (4) includes a steel rope fixing piece (40), a steel rope Fixed support (41), steel rope fixing bolt (42) and steel rope adjusting bolt (43). The steel rope fixing piece (40) and the steel rope fixing support (41) are connected through the steel rope fixing bolt (42). The two ends of the steel rope (2) are clamped, and the tension force of each section of the steel rope (2) is controlled to be the same by rotating the steel rope adjusting bolt (43) to adapt to different vibration frequencies of the hydraulic pipeline (1). 7. A self-powered vibration control and monitoring device surrounding a steel rope according to claim 1, characterized in that the steel rope (2) limits the axial movement of the vibrator (6) along the hydraulic pipeline (1) . 8. A self-powered vibration control and monitoring device surrounding a steel rope according to claim 1, characterized in that the vibrator (6) and coil (7) are under the restoring force of the steel rope (2). Move along the y direction and z direction, cutting the magnetic field lines in the magnetic field generated by the magnet (8), causing a current to be generated in the closed circuit; at the same time, when the coil (7) moves in the magnetic field, the induced current will cause the conductor to be affected by ampere force and hinders the movement of the coil (7), that is, electromagnetic damping, in this way reducing the vibration threshold of the hydraulic pipeline (1) in the y direction and z direction under different excitation frequencies. 9. A surrounding steel rope type self-powered vibration control and monitoring device according to claim 8, characterized in that the energy management and controller (9) converts the bidirectional irregular alternating current generated by the coil (7) into unidirectional pulsating direct current and stored in the battery. 10. A self-powered vibration control and monitoring device surrounding a steel rope according to claim 1, characterized in that the energy management and controller (9) stores the data collected by the vibration sensor (10) And process and transmit it to the processing end. By analyzing and processing the data, the type and location of pipeline faults are identified, so as to realize the diagnosis and prediction of pipeline operating status.