Swing type roadway wind measuring system

Abstract

The swing type roadway wind measuring system comprises a rocker arm mechanism, a synchronizing mechanism and a driving mechanism, the rocker arm mechanism comprises a mounting base, a connecting arm and a sensor mounting seat, the mounting base is fixed to the side wall of a roadway, the first end of the connecting arm is pivotally connected with the mounting base, and the second end of the connecting arm is pivotally connected with the sensor mounting seat. The other end of the connecting arm is connected with the sensor mounting seat, the sensor mounting seat is used for mounting a sensor, the synchronizing mechanism comprises a connecting shaft, transmission rods and a sliding pipe, the two ends of the connecting shaft are connected with the transmission rods respectively, the ends, away from the connecting shaft, of the transmission rods are connected with the sliding pipe in a pivoted mode, and the sliding pipe is connected with the connecting shaft. The sliding sleeve is arranged on the connecting arm in a sleeving mode, and the driving mechanism is in transmission connection with the rocker arm mechanism and used for driving the transmission rod to rotate relative to the roadway. The swing type roadway wind measuring device provided by the invention has the advantages of guaranteeing the wind measuring precision and realizing full-section wind speed measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of underground wind measurement, and in particular to a swing-type tunnel wind measurement system. Background Art

[0002] With the increasing automation and intelligence of mine ventilation systems, the measurement of wind speed in underground tunnels relies primarily on sensors. There are two general methods for measuring average wind speed in tunnels: single-point and multi-point. The multi-point method involves deploying multiple wind speed sensors within a tunnel section and calculating the arithmetic mean of the data monitored by each wind speed sensor to obtain the average wind speed. This method has low testing efficiency, and deploying sensors at multiple points can hinder normal passage through the tunnel, making it unsuitable for long-term monitoring of tunnel wind speed. Single-point wind measurement can only monitor the wind speed at a single point, and the wind speed at each point on the tunnel section is not uniform. Therefore, using the wind speed obtained by a single-point sensor to represent the average wind speed in the tunnel will result in a large error. Summary of the Invention

[0003] The present invention aims to solve, at least to some extent, one of the technical problems in the related art. To this end, an embodiment of the present invention provides a swing-type tunnel wind measurement system, which has the advantages of ensuring wind measurement accuracy and achieving full-section wind speed measurement.

[0004] According to the swinging tunnel wind measurement system of the embodiment of the present invention, the swinging tunnel wind measurement system includes a rocker arm mechanism, a synchronization mechanism and a drive mechanism, the rocker arm mechanism includes a mounting base, a connecting arm and a sensor mounting seat, the mounting base is fixed to the side wall of the tunnel, the first end of the connecting arm is pivotally connected to the mounting base, the other end of the connecting arm is connected to the sensor mounting seat, the sensor mounting seat is used to install the sensor, the synchronization mechanism includes a connecting shaft, a transmission rod and a sliding tube, the two ends of the connecting shaft are respectively connected to one transmission rod, the end of the transmission rod away from the connecting shaft is pivotally connected to the sliding tube, the sliding sleeve is sleeved on the connecting arm, and the drive mechanism is transmission-connected to the rocker arm mechanism to drive the transmission rod to rotate relative to the tunnel.

[0005] The oscillating tunnel wind measurement system according to an embodiment of the present invention has the advantages of ensuring wind measurement accuracy and achieving wind speed measurement across the entire cross-section. This application has the following advantages: By uniformly detecting wind speed at each point in the tunnel cross-section through a pair of wind measurement sensors, it can comprehensively reflect the wind speed within the tunnel. Wind speed measurement has low error and high accuracy. The equipment does not hinder normal passage through the tunnel and can implement functions such as automatic and remote adjustment, thus resolving the drawbacks of single-point and multi-point measurement.

[0006] In some embodiments, an adjustment bracket is provided on the sensor mounting seat, and the adjustment bracket includes a first bracket and a second bracket, the first bracket is connected to the sensor mounting seat, the second bracket is pivotally connected to the first bracket through a first adjustment axis, and the sensor fixing tube is pivotally connected to the second bracket through a second adjustment axis, and the extension direction of the first adjustment axis is perpendicular to the extension direction of the second adjustment axis.

[0007] In some embodiments, an infrared ray aligner is further included, and the infrared ray aligner is arranged in the sensor fixing cylinders of the two sensor mounting bases.

[0008] In some embodiments, the adjustment bracket further includes an adjustment motor, which is arranged on the second bracket and is transmission-connected to the second adjustment shaft to drive the second adjustment shaft to rotate.

[0009] In some embodiments, a locking mechanism is also included, which includes a locking housing, an electromagnet, a brake pad and a brake spring. The electromagnet and the brake pad are arranged in the locking housing. The brake pad is connected to the locking housing through the brake spring. The brake pad is in contact with the first adjusting shaft. The electromagnet is used to energize and attract the brake pad away from the first adjusting shaft.

[0010] In some embodiments, the locking mechanism further includes a pressure sensor, which is arranged on the brake pad to detect the pressure between the brake pad and the first adjustment shaft.

[0011] In some embodiments, a shock-absorbing pad is provided between the mounting base and the side wall of the tunnel, and the shock-absorbing pad is used to reduce the impact of tunnel vibration on the mounting base.

[0012] In some embodiments, the driving mechanism includes a cylinder, a telescopic end of the cylinder is slidably connected to the transmission rod to drive the transmission rod to rotate relative to the tunnel, and the other end of the cylinder is pivotally connected to the side wall of the tunnel.

[0013] In some embodiments, the driving mechanism includes a servo motor and a transmission member. The servo motor is arranged on the side wall of the tunnel. The servo motor is connected to the connecting shaft through the transmission member to drive the connecting shaft to rotate.

[0014] In some embodiments, the connecting axis extends in a direction perpendicular to the wind flow in the tunnel, and the connecting arm is parallel to the side wall of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 2 is a schematic structural diagram of a swing-type tunnel wind measurement system according to an embodiment of the present invention.

[0016] Figure 2 2 is a schematic structural diagram of a rocker arm mechanism of a swing-type tunnel wind measurement system according to an embodiment of the present invention.

[0017] Figure 3 2 is a schematic structural diagram of an adjustment bracket of a swing-type tunnel wind measurement system according to an embodiment of the present invention.

[0018] Figure 4 Schematic diagram of the use status of the swing-type tunnel wind measurement system in a tunnel according to an embodiment of the present invention.

[0019] Figure numerals: 1. Mounting base; 2. Connecting arm; 3. Sensor mounting base; 4. Connecting shaft; 5. Transmission rod; 6. First bracket; 7. Second bracket; 8. First adjusting shaft; 9. Second adjusting shaft; 10. Sensor fixing cylinder; 11. Sliding tube. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] According to the swinging tunnel wind measurement system of the embodiment of the present invention, the swinging tunnel wind measurement system includes a rocker mechanism, a synchronization mechanism and a driving mechanism. The rocker mechanism includes a mounting base 1, a connecting arm 2 and a sensor mounting base 3. The mounting base 1 is fixed to the side wall of the tunnel. The first end of the connecting arm 2 is pivotally connected to the mounting base 1, and the other end of the connecting arm 2 is connected to the sensor mounting base 3. The sensor mounting base 3 is used to install the sensor. The synchronization mechanism includes a connecting shaft 4, a transmission rod 5 and a sliding tube. The two ends of the connecting shaft 4 are respectively connected to a transmission rod 5. The end of the transmission rod 5 away from the connecting shaft 4 is pivotally connected to the sliding tube. The sliding sleeve is sleeved on the connecting arm 2. The driving mechanism is connected to the rocker mechanism for driving the transmission rod 5 to rotate relative to the tunnel.

[0022] The mounting base 1 secures the rocker mechanism to the sidewall of the tunnel, and the connecting arm 2 drives the sensor mounting base 3 to move relative to the tunnel with the mounting base 1 as the axis. This enables a pair of wind sensors to scan and measure the complete cross-section of the tunnel, avoiding the need for multiple sets of wind sensors to occupy space in the tunnel while ensuring comprehensive and highly accurate wind measurement data. The synchronization mechanism drives the rocker mechanisms on both sides of the tunnel through the connecting shaft 4 and the transmission rod 5, ensuring synchronous rotation of the connecting arms 2 of the two rocker mechanisms, facilitating alignment of the wind sensors and ensuring measurement accuracy. The driving mechanism drives the synchronization mechanism to rotate the rocker mechanism, thereby enabling the wind sensor to collect comprehensive data on the complete cross-section of the tunnel.

[0023] In some embodiments, an adjustment bracket is provided on the sensor mounting base 3, and the adjustment bracket includes a first bracket 6 and a second bracket 7. The first bracket 6 is connected to the sensor mounting base 3, and the second bracket 7 is pivotally connected to the first bracket 6 through a first adjustment shaft 8. The sensor fixing tube 10 is pivotally connected to the second bracket 7 through a second adjustment shaft 9, and the extension direction of the first adjustment shaft 8 and the extension direction of the second adjustment shaft 9 are perpendicular to each other.

[0024] Specifically, the first bracket 6 is perpendicular to the tunnel sidewall, and the first adjustment shaft 8 is arranged along the vertical direction within the tunnel. Rotation of the first adjustment shaft 8 changes the angle between the second bracket 7 and the tunnel sidewall. The second bracket 7 has two clamping plates, and the second adjustment shaft 9 passes through the sensor fixing cylinder 10. The two ends of the second adjustment shaft 9 are rotatably connected to the two clamping plates. As a result, the sensor fixing cylinder 10, arranged between the two clamping plates, can rotate relative to the second bracket 7 to adjust the angle between the wind sensor and the tunnel sidewall. The coordination of the first adjustment shaft 8 and the second adjustment shaft 9 enables adjustment in two degrees of freedom, allowing for more flexible and rapid adjustment and alignment of the wind sensor.

[0025] In some embodiments, an infrared aligner is further included and arranged in the sensor fixing cylinders 10 of the two sensor mounting seats 3 .

[0026] Specifically, to ensure clear infrared visibility in the relatively dark and potentially dusty environment of a roadway, a high-brightness infrared emitting element can be used. A narrow beam design improves the infrared's directivity, concentrating the light and facilitating precise alignment. An infrared alignment tool, located within the sensor mounting barrel 10, allows for flexible adjustment of the infrared emission angle, facilitating identification and alignment.

[0027] Optionally, a fixing slot is provided in the sensor fixing tube 10 so that the infrared aligner can be accurately inserted therein to ensure the stability and accuracy of the installation of the infrared aligner and prevent the infrared aligner from being vibrated and shifted during the swinging process.

[0028] Optionally, an infrared aligner is electrically connected to the drive mechanism. Under the control of the drive mechanism, the infrared aligner automatically adjusts the sensor's angle as it swings, eliminating the need for frequent manual intervention and improving operational convenience. Infrared light helps operators quickly and accurately adjust the sensor to the optimal measurement position, thereby improving the accuracy of measurement data.

[0029] In some embodiments, the adjustment bracket further includes an adjustment motor, which is disposed on the second bracket 7 and is transmission-connected to the second adjustment shaft 9 to drive the second adjustment shaft 9 to rotate.

[0030] Specifically, the adjustment motor is arranged on the second bracket 7 to drive the second adjustment shaft 9 to rotate, thereby controlling and adjusting the rotation angle of the sensor fixing cylinder 10. The adjustment motor can be driven by a gear meshing with a gear mounted on the second adjustment shaft 9, or it can be driven by a belt to rotate the second adjustment shaft 9. The adjustment motor can achieve precise control of the rotation angle of the second adjustment shaft 9. This allows the sensor fixing cylinder 10 to adjust its angle more accurately, allowing the sensor to accurately align with the direction of the wind flow, thereby improving the accuracy of wind flow measurement. The angle of the sensor can be adjusted dynamically in real time according to the actual measurement situation, and the system can promptly control the adjustment motor to adjust the sensor angle to ensure the accuracy of the measurement data.

[0031] In some embodiments, a locking mechanism is also included, which includes a locking housing, an electromagnet, a brake pad and a brake spring. The electromagnet and the brake pad are arranged in the locking housing. The brake pad is connected to the locking housing through the brake spring. The brake pad is in contact with the first adjusting shaft 8. The electromagnet is used to energize and attract the brake pad away from the first adjusting shaft 8.

[0032] Specifically, the locking mechanism is sleeved on the first adjustment shaft 8, the locking shell is fixedly connected to the first bracket 6, and the brake pad in the locking shell is tightly abutted against the first adjustment shaft 8 under the squeezing and pushing of the brake spring, thereby achieving braking of the first adjustment shaft 8. When the electromagnet is energized, the electromagnet is magnetic, and the electromagnet magnetically attracts the brake pad. At this time, the brake spring is compressed and the elastic potential energy increases. After the electromagnet is powered off, the electromagnet loses its magnetism, and the brake pad is pushed by the brake spring to fit the first adjustment shaft 8, thereby increasing the friction force of the rotation of the first adjustment shaft 8 and achieving locking of the first adjustment shaft 8. When the angle of the first adjustment shaft 8 does not need to be adjusted, the locking mechanism can firmly lock the first adjustment shaft 8 by tightly abutting the brake pad against the first adjustment shaft 8. This can prevent the first adjustment shaft 8 from accidentally rotating due to external vibrations, wind flow impact and other factors during system operation, ensure the stability of the sensor installation position, and thus improve the accuracy and reliability of wind measurement data.

[0033] In some embodiments, the locking mechanism further includes a pressure sensor, which is arranged on the brake pad to detect the pressure between the brake pad and the first adjustment shaft 8 .

[0034] Specifically, the pressure sensor monitors the pressure between the brake pad and the first adjustment shaft 8 in real time. Any abnormal pressure fluctuations, such as a sudden drop in pressure that could indicate severe brake pad wear or brake spring failure, triggers a prompt alarm, prompting the operator to perform inspections and repairs. This prevents accidental rotation of the first adjustment shaft 8 due to locking failure, thereby ensuring the safe operation of the swing-type tunnel wind measurement system. Pressure data fed back by the pressure sensor precisely controls the operating state of the electromagnet, ensuring unlocking and locking operations under appropriate pressure conditions. This prevents safety hazards caused by excessive unlocking or loose locking, improving the reliability and safety of the locking mechanism.

[0035] Optionally, an audible and visual alarm device can be installed on the locking mechanism. When the pressure sensor detects a pressure anomaly, such as excessively high or low pressure, the device immediately issues an alarm signal, alerting the operator to take prompt action. The alarm signal can be set to different levels and frequencies to distinguish between different levels of abnormality.

[0036] In some embodiments, a shock-absorbing pad is provided between the mounting base 1 and the side wall of the tunnel, and the shock-absorbing pad is used to reduce the impact of tunnel vibration on the mounting base 1.

[0037] Specifically, the vibrations in the tunnel may come from various factors such as the movement of mine cars and blasting. The shock-absorbing pads can reduce the impact of these vibrations on the mounting base 1, thereby reducing the risk of damage to the swing tunnel wind measurement system due to vibration, reducing the displacement or damage of the sensor due to vibration, and ensuring the measurement accuracy and stability of the sensor. Vibration can cause the sensor to shake, resulting in deviations in the measurement data. The shock-absorbing pads can provide a relatively stable support environment for the mounting base 1, reduce the shaking of the sensor, and thus improve the precision and accuracy of the wind flow measurement. The shock-absorbing pads can be made of materials such as rubber and polyurethane foam, which have good vibration absorption and weather resistance.

[0038] In some embodiments, the drive mechanism includes a cylinder, a telescopic end of the cylinder is slidably connected to the transmission rod 5 to drive the transmission rod 5 to rotate relative to the tunnel, and the other end of the cylinder is pivotally connected to the side wall of the tunnel.

[0039] Specifically, the cylinder's telescopic motion precisely controls the rotation angle and speed of the transmission rod 5, thereby enabling flexible swinging of the rocker mechanism. By adjusting the cylinder's stroke and telescopic speed, the sensor mount 3 can be used for measurements at various locations within the tunnel, expanding the measurement range and improving measurement accuracy. Controlling the cylinder's telescopic speed also keeps the sensor's movement speed within a stable range, facilitating data collection. The cylinder's air pressure source is connected to the downhole air supply system, facilitating automated control at reduced costs.

[0040] In some embodiments, the driving mechanism includes a servo motor and a transmission member. The servo motor is arranged on the side wall of the tunnel. The servo motor is connected to the connecting shaft 4 through the transmission member to drive the connecting shaft 4 to rotate.

[0041] Specifically, the servo motor offers high-precision position and speed control capabilities, enabling precise control of the rotation angle and speed of connecting shaft 4, enabling the rocker mechanism to swing along a preset trajectory and speed, thereby improving the measurement accuracy of the swing-type tunnel wind measurement system. The transmission element can be a belt, chain, or gear. Gear transmission offers high efficiency and precise transmission ratios, while belt transmission provides cushioning and vibration reduction, resulting in low noise and reduced vibration and impact during transmission.

[0042] In some embodiments, the connecting shaft 4 extends in a direction perpendicular to the wind flow in the tunnel, and the connecting arm 2 is parallel to the side wall of the tunnel.

[0043] Specifically, the connecting shaft 4 extends perpendicular to the direction of the wind flow in the tunnel, so that the sensor mounting base 3 can fully cover different positions of the tunnel cross section during the swinging process, thereby measuring more representative wind flow data. The connecting arm 2 swings parallel to the tunnel side wall, ensuring that the sensor is relatively stable with respect to the wind flow direction during the measurement process, reducing the measurement error caused by the change in the angle between the sensor and the wind flow, and improving the accuracy of the measurement. In addition, the layout in which the connecting shaft 4 is perpendicular to the direction of the wind flow in the tunnel and the connecting arm 2 is parallel to the tunnel side wall makes the system more reasonable in terms of force. The connecting shaft 4 mainly bears torque, and the connecting arm 2 mainly bears tension and pressure during the swinging process. The forces on each component are clear, which reduces component damage and system failures caused by uneven force and enhances the stability of the system.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0048] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Any changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are within the scope of protection of the present invention.

Claims

1. A swing-type tunnel wind measurement system, characterized in that: include: A rocker mechanism, the rocker mechanism comprising a mounting base, a connecting arm, and a sensor mounting base, the mounting base being fixed to the side wall of the roadway, a first end of the connecting arm being pivotally connected to the mounting base, and the other end of the connecting arm being connected to the sensor mounting base, the sensor mounting base being used to mount a sensor; A synchronization mechanism, comprising a connecting shaft, a transmission rod, and a sliding tube, wherein each end of the connecting shaft is connected to one of the transmission rods, an end of the transmission rod away from the connecting shaft is pivotally connected to the sliding tube, and the sliding tube is sleeved on the connecting arm; A driving mechanism is connected to the rocker mechanism for driving the driving rod to rotate relative to the lane.

2. The swing-type tunnel wind measurement system according to claim 1, characterized in that: An adjustment bracket is provided on the sensor mounting seat, and the adjustment bracket includes a first bracket and a second bracket. The first bracket is connected to the sensor mounting seat, and the second bracket is pivotally connected to the first bracket through a first adjustment shaft. The sensor fixing tube is pivotally connected to the second bracket through a second adjustment shaft, and the extension direction of the first adjustment shaft and the extension direction of the second adjustment shaft are perpendicular to each other.

3. The swing-type tunnel wind measurement system according to claim 2, characterized in that: It also includes an infrared ray aligner, which is arranged in the sensor fixing cylinders of the two sensor mounting seats.

4. The swing-type tunnel wind measurement system according to claim 2, characterized in that: It also includes an adjusting motor, which is arranged on the second bracket and is transmission-connected to the second adjusting shaft to drive the second adjusting shaft to rotate.

5. The swing-type tunnel wind measurement system according to claim 2, characterized in that: It also includes a locking mechanism, which includes a locking shell, an electromagnet, a brake pad and a brake spring. The electromagnet and the brake pad are arranged in the locking shell. The brake pad is connected to the locking shell through the brake spring. The brake pad is in contact with the first adjusting shaft. The electromagnet is used to energize and attract the brake pad away from the first adjusting shaft.

6. The swing-type tunnel wind measurement system according to claim 5, characterized in that: A pressure sensor is also included. The pressure sensor is arranged on the brake pad and is used to detect the pressure between the brake pad and the first adjustment shaft.

7. The swing-type tunnel wind measurement system according to claim 1, characterized in that: A shock-absorbing pad is provided between the mounting base and the side wall of the tunnel, and the shock-absorbing pad is used to reduce the influence of tunnel vibration on the mounting base.

8. The swing-type tunnel wind measurement system according to claim 1, characterized in that: The driving mechanism includes a cylinder, a telescopic end of the cylinder is slidably connected to the transmission rod to drive the transmission rod to rotate relative to the lane, and the other end of the cylinder is pivotally connected to the side wall of the lane.

9. The swing-type tunnel wind measurement system according to claim 1, characterized in that: The driving mechanism includes a servo motor and a transmission member. The servo motor is arranged on the side wall of the lane. The servo motor is connected to the connecting shaft through the transmission member to drive the connecting shaft to rotate.

10. The swing-type tunnel wind measurement system according to claim 1, characterized in that: The connecting shaft extends in a direction perpendicular to the air flow in the tunnel, and the connecting arm is parallel to the side wall of the tunnel.

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