Mud row car sensor fixing mechanism

Abstract

The utility model relates to the technical fields of mud removal travelling crane, especially to a kind of mud removal travelling crane sensor fixing mechanism, and it is automatically adjusted angle in real time;Including: first fixed frame, is connected with travelling crane support by fixing piece, its inside is equipped with first control chamber, first control chamber is equipped with first angular acceleration sensor, first control mainboard, first drive motor and first transmission gear set in it;Second fixed frame, is connected with first fixed frame by first pivot, its inside is provided with second control chamber, second control chamber is equipped with second angular acceleration sensor, second control mainboard, second drive motor and second transmission gear set in it;Sensor base, is connected with second fixed frame by second pivot;Sensor main body, with sensor base fixed connection, including mainboard and optical system.

Description

Technical Field

[0001] This utility model relates to the technical field of mud-draining vehicles, and in particular to a sensor fixing mechanism for mud-draining vehicles. Background Technology

[0002] During operation, the uneven distribution of sludge at the bottom of the water can easily lead to excessive operating power of the trolley, resulting in energy waste. Furthermore, constant power operation can easily cause rail wear. To solve this problem, the new generation of intelligent trolleys needs to use variable frequency operation. Therefore, a precise speed sensor is needed to monitor the trolley's operating speed in real time. As a high-precision speed measuring device, the laser Doppler velocimeter can meet this requirement.

[0003] Laser Doppler velocimeters utilize the differential laser Doppler principle, and their mounting angle significantly impacts measurement accuracy. The sensor's longitudinal axis must be perpendicular to the surface of the object being measured in two directions, and the plane of the laser beam must be parallel to the object's direction of travel. However, the sludge removal trolley generates significant vibrations during operation, and due to the resistance from the bottom sludge removal system, the truss is prone to skew, causing changes in the sensor's mounting angle and affecting measurement accuracy. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a fixing mechanism for a mud discharge vehicle sensor that automatically adjusts the angle in real time.

[0005] The mud-discharging vehicle sensor fixing mechanism of this utility model includes:

[0006] The first fixed frame is connected to the vehicle support through a fixing component. It has a first control chamber inside, in which a first angular acceleration sensor, a first control main board, a first drive motor, and a first transmission gear set are installed.

[0007] The second fixed frame is connected to the first fixed frame via the first rotating shaft. It has a second control chamber inside, and a second angular acceleration sensor, a second control main board, a second drive motor, and a second transmission gear set are installed in the second control chamber.

[0008] The sensor base is connected to the second mounting bracket via a second rotating shaft;

[0009] The sensor body, which is fixedly connected to the sensor base, includes the motherboard and the optical system;

[0010] The first control motherboard is electrically connected to the first angular acceleration sensor and the first drive motor. The output end of the first drive motor is connected to the second fixed frame through the first transmission gear set. The second control motherboard is electrically connected to the second angular acceleration sensor and the second drive motor. The output end of the second drive motor is connected to the sensor base through the second transmission gear set.

[0011] Furthermore, the first control motherboard and the second control motherboard are connected in communication.

[0012] Furthermore, the sensor base has a mounting slot, in which a battery is installed. The battery is electrically connected to the first angular acceleration sensor, the first control motherboard, the first drive motor, the second angular acceleration sensor, the second control motherboard, the second drive motor, and the sensor body.

[0013] Furthermore, wire grooves are provided in the first control chamber, the second control chamber, and the mounting slot, and each connecting wire is confined within the wire groove.

[0014] Furthermore, the inner side of the mounting groove is provided with several reinforcing ribs distributed at circumferential intervals.

[0015] Furthermore, the optical system includes two sets of lenses, and a sealing cover is provided on the outer side of the sensor body. The sealing cover is fixedly connected to the sensor base, and a window corresponding to the lens is opened on the sealing cover.

[0016] Furthermore, grooves are provided on the connection surface between the sealing cover and the sensor base, and on the contact surface between the window and the lens, with protruding sealing rings inside the grooves.

[0017] Furthermore, a pressure balancing valve is provided on the sealing cap.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The vibration and skew of the sludge discharge trolley are monitored in real time by a first angular acceleration sensor and a second angular acceleration sensor. Combined with the control of the first and second control motherboards, the first and second drive motors are driven. Through the transmission gear set, the angle of the second fixed frame and the sensor base is automatically adjusted, thereby adjusting the angle of the sensor body - the laser Doppler velocimeter. This ensures that the longitudinal axis of the laser Doppler velocimeter is perpendicular to the surface of the measured object, and that the laser beam plane is parallel to the direction of travel, thereby improving the measurement accuracy. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of a laser Doppler velocimeter.

[0022] Figure 2 Structural diagram of this utility model Figure 1 ;

[0023] Figure 3 Structural diagram of this utility model Figure 2 ;

[0024] Figure 4 Schematic diagram of the internal structure of the first fixing frame of this utility model;

[0025] Figure 5 A schematic diagram of the internal structure of the second fixing frame of this utility model;

[0026] The attached diagram shows the following markings: 1. First mounting bracket; 11. Mounting hole; 12. First control chamber; 13. First angular acceleration sensor; 14. First control main board; 15. First drive motor; 16. First transmission gear set; 2. Second mounting bracket; 21. Second control chamber; 22. Second angular acceleration sensor; 23. Second control main board; 24. Second drive motor; 25. Second transmission gear set; 3. Sensor base; 31. Mounting slot; 32. Battery; 33. Reinforcing rib; 4. Sensor body; 41. Main board; 42. Optical system; 421. Lens; 5. Sealing cover; 51. Window; 6. Wire groove. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] like Figures 1-5 As shown, the mud-discharging vehicle sensor fixing mechanism of this utility model includes:

[0029] The first fixed frame 1 is connected to the vehicle support through a fixing component. It has a first control chamber 12 inside, and a first angular acceleration sensor 13, a first control main board 14, a first drive motor 15 and a first transmission gear set 16 are installed in the first control chamber 12.

[0030] The second fixed frame 2 is connected to the first fixed frame 1 through the first rotating shaft. It has a second control chamber 21 inside, and a second angular acceleration sensor 22, a second control main board 23, a second drive motor 24 and a second transmission gear set 25 are installed in the second control chamber 21.

[0031] The sensor base 3 is connected to the second mounting bracket 2 via a second rotating shaft;

[0032] The sensor body 4 is fixedly connected to the sensor base 3, and includes a motherboard 41 and an optical system 42.

[0033] The first control motherboard 14 is electrically connected to the first angular acceleration sensor 13 and the first drive motor 15. The output end of the first drive motor 15 is connected to the second fixed frame 2 through the first transmission gear set 16. The second control motherboard 23 is electrically connected to the second angular acceleration sensor 22 and the second drive motor 24. The output end of the second drive motor 24 is connected to the sensor base 3 through the second transmission gear set 25.

[0034] The sensor body 4—the laser Doppler velocimeter—contains a DFB laser. The light emitted by the DFB laser is split into two beams and then converges again on the surface of the object being measured. The detector receives the reflected light. When the lateral velocity of the object is zero, the reflected light and the detector light have the same frequency. When the lateral velocity is not zero, the reflected light will have a frequency shift relative to the detector light. The velocimeter calculates the magnitude of the frequency shift using a fast Fourier transform to determine the lateral velocity of the object. For accurate measurement, the following installation angles between the sensor and the measuring surface must be observed:

[0035]

[0036] During operation, the first fixed frame 1 is stably connected to the sludge discharge trolley support. The first and second rotating shafts allow the sensor body 4 to flexibly adjust its angle in two degrees of freedom. The first angular acceleration sensor 13 and the second angular acceleration sensor 22 monitor the vibration and skew of the sludge discharge trolley in real time. The first control motherboard 14 and the second control motherboard 23 calculate the angle to be adjusted based on the collected data and control the first drive motor 15 and the second drive motor 24 to work. The first drive motor 15 drives the second fixed frame 2 to rotate around the first rotating shaft through the first transmission gear set 16, ensuring that the θy of the speed measuring instrument is kept within the range of 90°±1.3°. The second drive motor 24 drives the sensor base 3 to rotate around the second rotating shaft through the second transmission gear set 25, ensuring that the θx of the speed measuring instrument is kept within the range of 90°±3°. This real-time adjustment function effectively counteracts the influence of the vibration and skew of the sludge discharge trolley on the sensor, avoids measurement errors caused by angle deviation, reduces manual intervention, and improves work efficiency.

[0037] The first control motherboard 14 and the second control motherboard 23 are connected in communication. Through this design, the first control motherboard 14 and the second control motherboard 23 share sensor data and adjustment commands in real time to achieve collaborative control. This collaborative working mode can adjust the posture of the sensor body 4 more accurately and avoid errors that may occur when adjusting with a single control motherboard. At the same time, the working status of the other party is monitored in real time. If one of the control motherboards or sensors fails, the other control motherboard can detect the abnormality and take corresponding fault-tolerant measures, such as taking over some functions of the faulty motherboard or issuing an alarm.

[0038] The sensor base 3 has a mounting slot 31, in which a battery 32 is installed. The battery 32 is electrically connected to the first angular acceleration sensor 13, the first control motherboard 14, the first drive motor 15, the second angular acceleration sensor 22, the second control motherboard 23, the second drive motor 24, and the sensor body 4. The battery 32 provides an independent and stable power supply to each electrical component. Since it is directly installed on the sensor base 3 and is close to each electrical component, the wiring requirements are reduced, the installation process is simplified, and the installation difficulty and maintenance cost are reduced. In the working environment of the sludge removal vehicle, the external power supply may be unstable or difficult to connect. The design of the battery 32 enables the system to work normally without an external power supply and adapts to various complex environments.

[0039] Preferably, the first control chamber 12, the second control chamber 21, and the mounting slot 31 are all equipped with wire grooves 6, and each connecting wire is confined within the wire groove 6. The shape and size of the wire groove 6 are designed according to the number and direction of the connecting wires to avoid messy wiring, reduce mutual interference between wires, and improve the stability of signal transmission. The connecting wires are fixed by the limiting structure (such as clips, clamps, etc.) in the groove to prevent the connecting wires from shifting or loosening during equipment operation. The inner wall of the wire groove 6 is lined with a low-friction material to reduce friction on the connecting wires, thereby extending the service life of the connecting wires. The design of the wire groove 6 makes the direction of the connecting wires clearly visible, which facilitates maintenance personnel to quickly locate and repair line problems, reducing maintenance time and costs.

[0040] The inner side of the mounting groove 31 is preferably provided with a number of circumferentially spaced reinforcing ribs 33; any reinforcing rib 33 is in the shape of a triangle with good strength. The triangular structure has excellent mechanical stability and can withstand large compression, tension and bending loads. Its distribution density is designed according to the stress condition of the mounting groove 31 to ensure uniform reinforcement of structural strength.

[0041] The preferred optical system 42 includes two lenses 421. A sealing cover 5 is provided on the outside of the sensor body 4. The sealing cover 5 is fixedly connected to the sensor base 3. A window 51 corresponding to the lens 421 is opened on the sealing cover 5. The sealing cover 5 and the sensor base 3 form a sealed structure. The window 51 ensures that the lens 421 can receive and transmit light signals normally. This design can effectively protect the optical system 42 from the intrusion of external contaminants such as dust, water vapor, and oil, and ensure the cleanliness and optical performance of the lens 421.

[0042] The preferred sealing cover 5 and the sensor base 3 have grooves on their connecting surfaces, and the window 51 and the lens 421 have grooves on their contact surfaces. The grooves contain protruding sealing rings. The sealing rings are usually made of elastic materials (such as rubber, silicone or polyurethane), which have a certain degree of compressibility and resilience. They can fit tightly against the gap between the connecting surface and the contact surface to form an effective seal. The grooves can accurately position the sealing rings to ensure that they are installed in the correct position.

[0043] The sealing cover 5 is preferably equipped with a pressure balancing valve. The pressure balancing valve is usually composed of a breathable membrane or a micro valve, which allows air to pass through slowly but prevents liquid water and dust from entering. When there is a pressure difference between the inside and outside of the sealing cover 5, the pressure balancing valve will automatically adjust to make the internal and external pressures tend to be balanced, avoid pressure differences caused by temperature changes or altitude changes, and prevent the sealing cover from deforming or the sealing ring from failing.

[0044] The sludge removal vehicle sensor fixing mechanism of this utility model is powered by a battery 32 during operation. A first angular acceleration sensor 13 monitors the attitude changes of the first fixing frame 1 and transmits the data to a first control mainboard 14. The first control mainboard 14 calculates the required adjustment angle based on the data from the first angular acceleration sensor 13 and controls the first drive motor 15 to operate. The first drive motor 15 receives instructions from the first control mainboard 14 and drives the second fixing frame 2 to rotate via a first transmission gear set 16, adjusting its attitude. A second angular acceleration sensor 22 monitors the attitude changes of the second fixing frame 2 and transmits the data to a second control mainboard 23. The second control mainboard 23 then adjusts the attitude based on the data from the second angular acceleration sensor 22. The data from 22 is used to calculate the angle that needs to be adjusted and control the second drive motor 24 to work. The second drive motor 24 receives instructions from the second control motherboard 23 and drives the sensor base 3 to rotate through the second transmission gear set 25, further adjusting the posture of the sensor body 4. The first control motherboard 14 and the second control motherboard 23 share sensor data and adjustment instructions in real time to achieve coordinated control. When the sensor body 4 is running, the motherboard 41 controls the two lenses 421 of the optical system 42 to emit and receive light signals. The motherboard 41 processes the data and transmits the data to the external control system. The sealing cover 5 protects the optical system 42 from the intrusion of dust, water vapor and oil. The pressure balance valve adjusts the internal and external air pressure of the sealing cover 5.

[0045] The mud-discharging vehicle sensor fixing mechanism of this utility model can be installed, connected or set in a common mechanical way, and can be implemented as long as it can achieve its beneficial effect.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sludge discharge vehicle sensor fixing mechanism, characterized in that, include: The first fixed frame (1) is connected to the vehicle support through a fixing member. It has a first control chamber (12) inside. The first control chamber (12) is equipped with a first angular acceleration sensor (13), a first control main board (14), a first drive motor (15) and a first transmission gear set (16). The second fixed frame (2) is connected to the first fixed frame (1) through the first rotating shaft. It has a second control chamber (21) inside. The second control chamber (21) is equipped with a second angular acceleration sensor (22), a second control motherboard (23), a second drive motor (24) and a second transmission gear set (25). The sensor base (3) is connected to the second fixing frame (2) via a second rotating shaft; The sensor body (4) is fixedly connected to the sensor base (3) and includes a motherboard (41) and an optical system (42); The first control motherboard (14) is electrically connected to the first angular acceleration sensor (13) and the first drive motor (15). The output end of the first drive motor (15) is connected to the second fixed frame (2) through the first transmission gear set (16). The second control motherboard (23) is electrically connected to the second angular acceleration sensor (22) and the second drive motor (24). The output end of the second drive motor (24) is connected to the sensor base (3) through the second transmission gear set (25).

2. The sludge discharge trolley sensor fixing mechanism as described in claim 1, characterized in that, The first control motherboard (14) and the second control motherboard (23) are connected in communication.

3. The sludge discharge trolley sensor fixing mechanism as described in claim 1, characterized in that, The sensor base (3) has an installation slot (31) and a storage battery (32) is installed in the installation slot (31). The storage battery (32) is electrically connected to the first angular acceleration sensor (13), the first control motherboard (14), the first drive motor (15), the second angular acceleration sensor (22), the second control motherboard (23), the second drive motor (24), and the sensor body (4).

4. The sludge discharge trolley sensor fixing mechanism as described in claim 3, characterized in that, The first control chamber (12), the second control chamber (21) and the mounting groove (31) are all provided with wire grooves (6), and each connecting wire is confined in the wire groove (6).

5. The sludge discharge trolley sensor fixing mechanism as described in claim 3, characterized in that, The mounting groove (31) is provided with a number of circumferentially spaced reinforcing ribs (33) on its inner side.

6. The sludge discharge trolley sensor fixing mechanism as described in claim 1, characterized in that, The optical system (42) includes two sets of lenses (421). A sealing cover (5) is provided on the outside of the sensor body (4). The sealing cover (5) is fixedly connected to the sensor base (3). A window (51) corresponding to the lens (421) is opened on the sealing cover (5).

7. The sludge discharge trolley sensor fixing mechanism as described in claim 6, characterized in that, The sealing cover (5) and the sensor base (3) are connected by grooves, and the window (51) and the lens (421) are in contact with each other. A protruding sealing ring is provided in the groove.

8. The sludge discharge vehicle sensor fixing mechanism as described in claim 7, characterized in that, A pressure balancing valve is provided on the sealing cover (5).

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