Hydrological measurement hoisting device with self-adaptive adjusting function

Abstract

The application discloses a hydrological measurement hoisting device with self-adaptive adjustment function, which comprises a front-end telescopic hoist arm, an anti-derailing device arranged at the front end of the hoist arm, a winch, a steel wire rope, a lead fish, a detection device and a controller. One end of the steel wire rope is wound around the winch, and the other end is connected with the lead fish through the anti-derailing device; the detection device on the lead fish is used for detecting the water flow speed and position. The controller is electrically connected with the detection device, the hoist arm and the winch, receives the detection signal and adjusts the length of the steel wire rope wound and unwound by the winch and the telescopic length of the hoist arm, so that the lead fish is kept at the target position. Through the integration of the detection device and the controller, real-time monitoring and dynamic adjustment of hydrological measurement are realized, and the measurement accuracy of the flow speed and position is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydrological measurement, and in particular relates to a hydrological measurement lifting device with adaptive adjustment function. Background Technology

[0002] Traditional hydrological measurement lifting devices are difficult to adaptively adjust the lifting process according to the actual situation in complex water flow environments. This makes the measurement position of the lead weight susceptible to deviation due to water flow impact, affecting the measurement accuracy. In addition, the wire rope is prone to derailment, leading to detection failure. Summary of the Invention

[0003] (a) Purpose of the utility model

[0004] To overcome the above shortcomings, the purpose of this utility model is to provide a hydrological measurement lifting device with adaptive adjustment function, so as to solve the technical problems of existing traditional hydrological measurement lifting devices that are difficult to adaptively adjust the position of the lead weight in complex water flow environments, are prone to measurement deviation due to water flow impact, and have the problem of wire rope derailment leading to detection failure.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] A hydrological measurement lifting device with adaptive adjustment function includes: a telescopic boom at the front end; an anti-derailment device rotatably mounted at the front end of the boom; a winch with the unwinding direction parallel to the length direction of the boom; a wire rope, one end of which is wound around the winch, and the other end extending downward along the length direction of the boom and past the anti-derailment device; a lead weight mounted at the other end of the wire rope; and a detection device mounted on the lead weight for detecting the water flow velocity and the position of the lead weight when it is lowered into the water. The device also includes: a controller electrically connected to the detection device, the boom, and the winch, for receiving detection signals from the detection device and adjusting the length of the winch winding and unwinding the wire rope and the telescopic length of the boom according to the detection signals to keep the lead weight in the target position.

[0008] By integrating detection devices and controllers, real-time monitoring and dynamic adjustment of the hydrological measurement process are achieved. By adjusting the extension and retraction length of the boom and coordinating with the winch's line winding and unwinding, the lead weight is adjusted and maintained in the target position, thereby significantly improving the accuracy of flow velocity and position measurements.

[0009] In some embodiments, the anti-derailment device includes: an anti-derailment roller with a soft material on its surface and a rotating shaft through which the anti-derailment roller passes and whose two ends are respectively rotatably connected to the boom, wherein the surface of the anti-derailment roller is provided with a U-shaped guide groove.

[0010] When the wire rope is subjected to changes in force, the anti-derailment roller, as an elastic component, undergoes adaptive deformation and dynamically adjusts the clamping force on the wire rope. This effectively prevents the wire rope from derailing under complex water flow impact or load fluctuation conditions, and avoids rope damage caused by rigid clamping through elastic buffering, significantly improving the safety and reliability of equipment operation.

[0011] In some embodiments, the controller is wirelessly connected to the detection device.

[0012] Wireless connectivity eliminates the risk of cable tangling, simplifies equipment layout, and enhances operational flexibility; real-time remote monitoring of water flow data and equipment status improves operational efficiency in complex water areas and solves the signal delay and installation complexity problems caused by cable length limitations in wired communication.

[0013] In some embodiments, it further includes: a communication cable, one end of which is wound around the winch, and the other end which extends downward along the length of the boom and around the anti-derailment device to be electrically connected to the detection device.

[0014] Wired transmission ensures the stability of signal transmission, guarantees real-time feedback of sensor data, and significantly improves the response speed and measurement reliability of the control system.

[0015] In some embodiments, the detection device includes a water flow velocity sensing unit and a lead fish position sensor unit.

[0016] The dual-sensor collaborative mechanism accurately quantifies the dynamic impact of water flow on the lead fish, making the controller compensation strategy more in line with actual working conditions and improving the position control accuracy to the centimeter level, thus solving the technical bottleneck that a single sensor cannot cope with complex fluid interference.

[0017] In some embodiments, the boom includes: a rear boom, a front boom that slides with the rear boom, and a telescopic cylinder disposed on the rear boom and whose drive end is connected to the front boom. Attached Figure Description

[0018] Figure 1 This is a diagram showing the state of the hydrological measurement lifting device with adaptive adjustment function when the boom is not extended.

[0019] Figure 2 This is a diagram showing the state of the boom of the hydrological measurement lifting device with adaptive adjustment function of this utility model when it is extended.

[0020] Figure 3 This is a state diagram of the hydrological measurement lifting device with adaptive adjustment function of this utility model during dynamic adjustment.

[0021] Figure label:

[0022] 1. Winch; 2. Boom; 201. Rear boom; 202. Front boom; 3. Anti-derailment device; 4. Wire rope; 5. Communication cable; 6. Lead weight; 7. Detection device; 8. Lifting limit switch; 9. Telescopic cylinder. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0024] A hydrological measurement lifting device with adaptive adjustment function includes a telescopic boom 2, with an anti-derailment device 3 rotatably mounted at its front end via a bearing. A winch 1 is fixed to the base of the boom 2, with its unwinding direction parallel to the length direction of the boom 2. One end of a wire rope 4 is wound around the drum of the winch 1, and the other end extends along the boom 2, passes over the anti-derailment device 3, and hangs downwards, with the end connected to a lead weight 6. The lead weight 6 integrates a detection device 7 (including water flow velocity and position sensors), and a controller is connected to the detection device 7, the motor of the winch 1, and the telescopic drive of the boom 2. During operation, the controller receives real-time signals of water flow velocity and the position of the lead weight 6, and adjusts the winding and unwinding length of the winch 1 (controlling the descent depth of the wire rope 4) and the telescopic amount of the boom 2 (horizontal displacement compensation) to dynamically stabilize the lead weight 6 at a preset target position, with the error range controlled within ±10 cm.

[0025] Furthermore, the anti-derailment device 3 specifically includes: a rotating shaft with a silicone anti-derailment roller fitted on its surface. Both ends of the rotating shaft are hinged to the boom 2 via ball bearings, and a U-shaped guide groove is formed on the side of the roller to create an elastic constraint channel. When the wire rope 4 deviates, the entire silicone material, including the groove wall, undergoes elastic deformation under pressure to adaptively tighten the gap, providing an adaptive clamping force of approximately 5 to 20 Newtons to prevent derailment while avoiding rigid friction damage to the rope. The roller can rotate freely with the rope's swing.

[0026] Building upon this, the controller and detection device 7 communicate wirelessly. Specifically, data is transmitted via a built-in 2.4GHz radio frequency module (effective distance 50 meters), replacing traditional wired connections. This eliminates the risk of cable tangling and allows the remote monitoring terminal to receive water flow parameters in real time.

[0027] As an alternative to wired transmission, a communication cable 5 is added. This cable runs parallel to the steel wire rope 4: one end is wound around a dedicated reel in the winch 1, and the other end is laid along the boom 2 and passes through the cable groove on the side wall of the anti-derailment device 3, finally connecting to the detection device 7 inside the lead weight 6. The outer layer of the cable and the connection point with the detection device 7 are covered with a wear-resistant rubber sheath approximately 3 mm thick to ensure stable underwater signal transmission.

[0028] The water flow velocity sensing unit preferably employs a miniature electromagnetic current meter (such as the Krohne 3070C), which measures velocity without moving parts based on Faraday's principle (accuracy ±0.5% FS), or an acoustic Doppler module (such as the Nortek Vector, 45mm in diameter) to achieve three-dimensional flow velocity monitoring. The lead weight positioning unit preferably uses a combination of a miniature IMU and a pressure sensor (such as the TDK ICM-20948 + TEMS5837), which achieves ±10cm positioning through attitude fusion and water depth calibration, or uses an ultra-short baseline acoustic beacon (such as the Sonardyne Scout) in conjunction with a surface base station to achieve ±5cm accuracy. All modules meet the lead weight installation size restrictions (diameter <10cm), and the housing is made of 316 stainless steel or titanium alloy for corrosion resistance, supporting wireless / wired integration into the control system.

[0029] Specifically, the dynamic adjustment process of the hydrological measurement lifting device is as follows:

[0030] When the lead weight 6 is immersed in water and shifts forward due to the thrust of the water flow, the detection device 7 captures its positional change in real time and transmits error data to the controller. The controller then initiates a linkage adjustment: first, it synchronously controls the telescopic cylinder 9 to drive the boom 2 to retract (preferably with a retraction stroke of 30-50 cm), while simultaneously instructing the winch 1 to reel in the line at a rate of 0.2-0.4 m / s; then, after the boom 2 has retracted to its final position, it controls the winch 1 to release the line at a rate of 0.1-0.3 m / s, allowing the lead weight 6 to gradually return to its original position under the force of the water flow. Finally, the lead weight 6 stabilizes at the target measurement point through multiple rounds of closed-loop adjustment, i.e., from the original state (A) to state (B) and then to state (C), with the error range controlled within ±10 cm. This dynamic adjustment cycle can be optimized to 3-5 seconds per cycle to ensure effective measurement even in turbulent environments. Preferably, when encountering continuous rapid current impact, the system can automatically increase the adjustment frequency to 12-15 times per minute to match the dynamic characteristics of the water flow.

[0031] Preferably, boom 2 adopts a nested hydraulic telescopic structure. The rear boom 201 is a rectangular hollow steel beam (section size 200mm×100mm), and the front boom 202 is slidably sleeved on its internal slide rail. The base of the telescopic cylinder 9 is fixed to the end of the rear boom 201, and its piston rod end is connected to the front boom 202 through a flange, providing a maximum thrust of 1.5 tons. Alternatively, an electric actuator can be used to achieve the same telescopic function.

[0032] Preferably, a rise limit switch 8 is provided on the wire rope 4 near the lead weight 6 to limit the winding length of the wire rope 4.

[0033] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A hydrological measurement lifting device with adaptive adjustment function, characterized in that, include: The system includes a telescopic boom (2), an anti-derailment device (3) rotatably mounted at the front end of the boom (2), a winch (1) with the unwinding direction parallel to the length of the boom (2), a wire rope (4) with one end wound around the winch (1) and the other end extending downward along the length of the boom (2) and around the anti-derailment device (3), a lead weight (6) mounted at the other end of the wire rope (4), and a detection device (7) mounted on the lead weight (6) for detecting the water flow speed and the position of the lead weight (6) when it is placed in the water. The system also includes a controller electrically connected to the detection device (7), the boom (2), and the winch (1) for receiving the detection signal from the detection device (7) and adjusting the length of the winch (1) winding and unwinding the wire rope (4) and the telescopic length of the boom (2) according to the detection signal so that the lead weight (6) is kept in the target position.

2. The hydrological measurement lifting device with adaptive adjustment function according to claim 1, characterized in that, The anti-derailment device (3) includes: an anti-derailment roller with a soft material on its surface and a rotating shaft that passes through the anti-derailment roller and is rotatably connected to the boom (2) at both ends, wherein the surface of the anti-derailment roller is provided with a U-shaped guide groove.

3. The hydrological measurement lifting device with adaptive adjustment function according to claim 1, characterized in that, The controller is wirelessly connected to the detection device (7).

4. The hydrological measurement lifting device with adaptive adjustment function according to claim 1, characterized in that, Also includes: The communication cable (5) has one end wound around the winch (1) and the other end extending downward along the length of the boom (2) and around the anti-derailment device (3) to be electrically connected to the detection device (7).

5. The hydrological measurement lifting device with adaptive adjustment function according to claim 1, characterized in that, The detection device (7) includes: a water flow velocity sensing unit and a lead fish (6) position sensor unit.

6. The hydrological measurement lifting device with adaptive adjustment function according to claim 1, characterized in that, The boom (2) includes: a rear boom (201), a front boom (202) that slides with the rear boom (201), and a telescopic cylinder (9) that is mounted on the rear boom (201) and whose drive end is connected to the front boom (202).

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