A ship towing and measurement system applicable to the test of an arc-shaped navigation tunnel

Abstract

The present invention relates to the technical field of ship test devices, and specifically discloses a ship towing and measuring system applicable to arc-shaped navigation tunnel tests. By controlling the forward speeds of the two tractors before and after, the present invention can achieve the uniform movement of the ship model along the center line of the channel in the arc-shaped test water tank; the ship model has no constraints in the vertical direction and can freely heave, and the heave amount of the ship model can be measured in real time during the test; the traveling direction of the tractor can be converted to enable the ship model to run in both directions; the tractor and the ship model are connected by a towing rope, and the navigation resistance of the ship model is measured by the tension of the towing rope during the test; through the setting of a laser rangefinder and the separate control of the synchronous pulley, the precise positioning of the ship model is achieved, facilitating the control of the displacement and speed of the ship model. Through the innovative design of the two tractors running on the track before and after, the present invention solves the deficiencies in the measurement and control of the arc-shaped channel in the prior art, and realizes the intelligent simulation of ship towing in the arc-shaped channel and the synchronous measurement of navigation elements.

Description

Technical Field

[0001] The present invention relates to the technical field of ship test devices, and particularly to a ship towing and measuring system suitable for arc-shaped navigation tunnel tests. Background Art

[0002] Ship towing tests are an important method for measuring the resistance change law of a ship under different motion states, analyzing the flow characteristics between the ship and water, and exploring the optimization of ship performance. Ship towing tests have important application values in ship design and performance optimization. Through the tests, the resistance change law of a ship under different motion states can be explored, the flow characteristics between the ship and water can be analyzed, providing an important basis for ship design and performance optimization.

[0003] Currently, there are many ship towing basins, but they are all towing devices for straight channels, and there is no ship towing test device suitable for arc-shaped channels yet.

[0004] Therefore, there is an urgent need to provide a ship towing and measuring system suitable for arc-shaped navigation tunnel tests to solve the deficiencies in the measurement and control of arc-shaped channels in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a ship towing and measuring system suitable for arc-shaped navigation tunnel tests to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides a ship towing and measuring system suitable for arc-shaped navigation tunnel tests, including:

[0007] An arc-shaped test water tank;

[0008] Tracks, which are installed at the top ends of the side walls on both sides of the arc-shaped test water tank;

[0009] A ship model, with radar rangefinders installed at both ends of the bottom of the ship model, and the radar rangefinders are used to measure the heave of the ship model;

[0010] Two tractors, which are respectively arranged at the front and rear ends of the ship model, the tractors sail along the tracks, and two laser rangefinders are arranged on the side of the tractors away from the ship model, and the laser rangefinders are used to detect the distance from the tractors to the inner wall of the side wall in real time;

[0011] A traction assembly, which is installed on the side of the tractor close to the ship model, and the tractor drags the ship model through the traction assembly.

[0012] Preferably, the tracks are of an arc-shaped structure and are concentrically arranged with the arc-shaped test water tank.

[0013] Preferably, the track is assembled by a plurality of track bodies, and the track body includes:

[0014] A track bottom plate, and the track bottom plate is installed at the top end of the side wall;

[0015] A track vertical plate, and the track vertical plate is fixedly installed at the top end of the track bottom plate;

[0016] A track panel, and the track panel is arranged between the two track vertical plates, and the track panel is fixedly connected to the top of the track vertical plate, and a groove is formed between the track panel and the track vertical plate.

[0017] Preferably, the tractor includes:

[0018] A vehicle frame, and the laser rangefinder and the traction assembly are respectively installed on both sides of the vehicle frame; four wheels are installed on the vehicle frame, and the vehicle frame is supported in the groove on the track through the wheels and sails along the track;

[0019] Two sets of driving devices, and the two sets of driving devices are respectively installed on both sides of the vehicle frame. The driving device is in transmission connection with a synchronous pulley, and the synchronous pulley is located at the bottom of the vehicle frame; a synchronous belt is fixedly connected to one side of the track close to the ship model, and the synchronous pulley is engaged with the synchronous belt;

[0020] A controller, and the controller is installed in the middle of the top end of the vehicle frame, and the driving device is electrically connected to the controller.

[0021] Preferably, the driving device includes:

[0022] An electric motor, and the electric motor is in transmission connection with the synchronous pulley through a transmission shaft, and the electric motor is electrically connected to the controller;

[0023] A linear module, and the linear module is fixedly installed on the vehicle frame, and the linear module is used to adjust the position of the electric motor;

[0024] A battery, and the battery is used to supply power to the electric motor and the controller.

[0025] Preferably, the linear module includes a pressure adjusting plate, and the pressure adjusting plate is fixedly installed on the vehicle frame; a baffle is fixedly connected to the top end of the pressure adjusting plate, a guide rod is slidably connected to the baffle, a slider is fixedly connected to one end of the guide rod close to the electric motor, and a support plate is fixedly connected to the slider, and the electric motor is installed on the support plate; a compression spring is sleeved on the guide rod, and two ends of the compression spring are respectively abutted against the baffle and the slider.

[0026] Preferably, the traction assembly includes:

[0027] Two vertical rods, the two vertical rods are respectively fixedly connected to both ends of the vehicle frame, and ball head universal joints are installed at the bottom ends of the vertical rods;

[0028] A towing ring, the towing ring is installed on the ball head universal joint, and the towing ring is connected to the ship model through a towing rope.

[0029] Preferably, a tension sensor is arranged between the towing ring and the ball head universal joint, the tension sensor is electrically connected to the controller, and the tension sensor is used to monitor the tension of the towing rope in real time.

[0030] Preferably, the towing ring is fixedly connected to the ship model.

[0031] Preferably, the synchronous belt is a T-shaped synchronous belt.

[0032] Compared with the prior art, the present invention has the following advantages and technical effects:

[0033] The ship towing and measurement system applicable to the arc-shaped navigation tunnel test provided by the present invention can realize the uniform movement of the ship model along the center line of the waterway in the arc-shaped test water tank by controlling the forward speeds of the front and rear two tractors; the ship model has no restraint in the vertical direction and can freely heave, and the heave amount of the ship model can be measured in real time during the test; the traveling direction of the tractor can be converted, enabling the ship model to run bidirectionally; through the setting of the laser rangefinder, accurate positioning of the ship model is achieved, facilitating the control of the displacement and speed of the ship model.

[0034] Through the innovative design of the front and rear two tractors running on the track, the present invention solves the deficiencies in the measurement and control of the arc-shaped waterway in the prior art, and realizes the intelligent simulation of ship towing in the arc-shaped waterway and the synchronous measurement of navigation elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a schematic structural diagram of the ship towing and measurement system applicable to the arc-shaped navigation tunnel test of the present invention;

[0037] Figure 2 It is a schematic structural diagram of the track of the present invention;

[0038] Figure 3 It is a schematic diagram for detecting the heave amount of the ship model of the present invention;

[0039] Figure 4 Schematic structural diagram of the tractor of the present invention;

[0040] Figure 5 Schematic structural diagram of the traction assembly of the present invention;

[0041] In the figure: 1, arc test water tank; 2, track; 3, tractor; 4, ship model; 11, side wall; 12, track bottom plate; 13, track vertical plate; 14, track panel; 15, synchronous belt; 21, towing rope; 22, radar rangefinder; 31, laser rangefinder; 32, vehicle frame; 33, support plate; 34, compression spring; 35, linear module; 36, electric motor; 37, pressure regulating plate; 38, battery; 39, controller; 41, towing eyebolt; 42, tension sensor; 43, ball head universal joint; 44, vertical rod; 45, wheel; 46, synchronous pulley. Specific embodiments

[0042] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0043] As Figures 1 to 5 shown, the present invention provides a ship towing and measuring system applicable to arc navigation tunnel tests, including:

[0044] Arc test water tank 1;

[0045] Track 2, and the track 2 is installed at the top ends of the side walls 11 on both sides of the arc test water tank 1;

[0046] Ship model 4, and radar rangefinders 22 are installed at both ends of the bottom of the ship model 4, and the radar rangefinders 22 are used to measure the heave of the ship model 4;

[0047] Two tractors 3, the tractors 3 are respectively arranged at the front and rear ends of the ship model 4, the tractors 3 sail along the track 2, and two laser rangefinders 31 are arranged on the side of the tractor 3 away from the ship model 4, and the laser rangefinders 31 are used to detect the distance from the tractor 3 to the inner wall of the side wall 11 in real time;

[0048] Traction assembly, the traction assembly is installed on the side of the tractor 3 close to the ship model 4, and the tractor 3 drags the ship model 4 through the traction assembly.

[0049] By controlling the forward speed of the front and rear tractors 3, the present invention can enable the ship model 4 to travel at a uniform speed along the center line of the channel in the arc-shaped test water tank 1; the ship model 4 is unconstrained in the vertical direction and can rise and sink freely, and the rise and sink amount of the ship model 4 can be measured in real time during the test; the travel direction of the tractor 3 is switchable, allowing the ship model 4 to run in both directions; through the setting of the laser rangefinder 31, the ship model 4 can be accurately positioned, and the displacement and speed of the ship model 4 can be conveniently controlled.

[0050] The present invention solves the shortcomings of the existing technology in arc channel measurement and control through the innovative design of two front and rear on-track tractors 3, and realizes intelligent simulation of ship towing in arc channel and synchronous measurement of navigation elements.

[0051] According to a further optimized solution, the track 2 is an arc-shaped structure, and the track 2 is concentrically arranged with the arc-shaped test water tank 1.

[0052] Further optimizing the solution, track 2 is assembled from several sections of track, including:

[0053] Track base plate 12, track base plate 12 is installed on the top of the side wall 11;

[0054] The track riser 13 is fixedly mounted on the top of the track base plate 12;

[0055] The track panel 14 is disposed between the two track risers 13 , and the track panel 14 is fixedly connected to the top of the track risers 13 , with a groove formed between the track panel 14 and the track risers 13 .

[0056] Further optimizing the scheme, the tractor 3 includes:

[0057] The frame 32, the laser rangefinder 31 and the traction assembly are respectively mounted on both sides of the frame 32; four wheels 45 are mounted on the frame 32, and the frame 32 is supported in the grooves on the track 2 by the wheels 45 and travels along the track 2;

[0058] Two sets of drive devices are installed on both sides of the frame 32 respectively. The drive devices are connected to the synchronous wheel 46, which is located at the bottom of the frame 32; the side of the track vertical plate 13 close to the ship model 4 is fixedly connected to the synchronous belt 15, and the synchronous wheel 46 is engaged with the synchronous belt 15;

[0059] The controller 39 is installed at the middle of the top end of the frame 32 , and the driving device is electrically connected to the controller 39 .

[0060] Further optimization scheme, the drive device includes:

[0061] The electric motor 36 is connected to the synchronous wheel 46 via a transmission shaft, and the electric motor 36 is electrically connected to the controller 39;

[0062] The linear module 35 is fixedly installed on the vehicle frame 32 and is used to adjust the position of the electric motor 36.

[0063] The battery 38 is used to supply power to the electric motor 36 and the controller 39.

[0064] In a further optimized solution, the linear module 35 includes a pressure regulating plate 37 which is fixedly installed on the vehicle frame 32; a baffle is fixedly connected to the top end of the pressure regulating plate 37, a guide rod is slidably connected to the baffle, a slider is fixedly connected to the end of the guide rod close to the electric motor 36, a support plate 33 is fixedly connected to the slider, and the electric motor 36 is installed on the support plate 33; a compression spring 34 is sleeved on the guide rod, and the two ends of the compression spring 34 are respectively abutted against the baffle and the slider.

[0065] Through the arrangement of the compression spring 34, the synchronous pulley 46 can be pushed to be tightly engaged with the synchronous belt 15 inside the track 2 to ensure the effectiveness of transmission.

[0066] In a further optimized solution, the traction assembly includes:

[0067] Two vertical rods 44 are respectively fixedly connected to both ends of the vehicle frame 32, and a ball head universal joint 43 is installed at the bottom end of the vertical rod 44.

[0068] The traction sling 41 is installed on the ball head universal joint 43, and the traction sling 41 is connected to the ship model 4 through a traction rope 21.

[0069] In a further optimized solution, a tension sensor 42 is arranged between the traction sling 41 and the ball head universal joint 43. The tension sensor 42 is electrically connected to the controller 39, and the tension sensor 42 is used to monitor the tension of the traction rope 21 in real time.

[0070] In a further optimized solution, a traction sling 41 is fixedly connected to the ship model 4.

[0071] In a further optimized solution, the synchronous belt 15 is a T-shaped synchronous belt.

[0072] The working principle of the ship towing and measuring system applicable to the curved navigation tunnel test provided by the present invention:

[0073] The ship model 4 is towed and navigated in the arc-shaped test water tank 1 by two towing vehicles 3, one in the front and the other in the rear; a set of radar rangefinders 22 are installed at the front and rear of the bottom of the ship model 4 to measure the heave of the ship model 4; a set of laser rangefinders 31 are installed on both sides of the front end of the frame 32 of the towing vehicle 3. During the test, the distance from the towing vehicle 3 to the inner wall of the side wall 11 is detected in real time; when the distance exceeds the set interval, it is determined that the towing vehicle 3 deviates from the predetermined route, and the motor speed is adjusted in time to correct the course; four wheels 45 are installed on the frame 32 of the towing vehicle 3, and the four wheels 45 are supported on the two tracks 2. The wheel rims are submerged in the grooves of the tracks 2 and roll in the grooves, enabling the towing vehicle 3 to navigate along the tracks 2. A set of driving devices are installed on both sides of the frame 32. Each driving device has an electric motor 36. The electric motor 36 drives the synchronous wheel 46 at the bottom of the vehicle body to rotate through a transmission shaft; the electric motor 36 is fixed on the slider of the linear module 35 through a support plate 33, so that it can slide horizontally; there are two compression springs 34 at the rear side of the support plate 33. The compression springs 34 are used to push the synchronous wheel 46 to be tightly engaged with the synchronous belt 15 on the inner side of the track 2, thereby controlling the forward movement of the vehicle body. Each electric motor 36 has an independent power supply and driving module, and its rotation speed can be controlled separately through a computer program. Two vertical rods 44 are fixed on the frame 32 of the towing vehicle 3. A set of ball head universal joints 43 are installed at the bottom ends of the vertical rods 44. A tension sensor 42 is installed at the end of the ball head universal joint 43 and is connected in series with the towing ropes 21 to monitor the tension of the two towing ropes 21 in real time. The operation of the two towing vehicles 3 is controlled through a computer program to simulate the ship's navigation in an arc-shaped waterway, and navigation elements such as heave, navigation resistance, and ship positioning are measured.

[0074] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A ship towing and measuring system applicable to the test of an arc-shaped navigation tunnel, characterized in that include: Arc test flume (1); Tracks (2), the tracks (2) being mounted on the tops of the side walls (11) on both sides of the arc-shaped test water tank (1); A ship model (4), wherein radar rangefinders (22) are installed at both ends of the bottom of the ship model (4), and the radar rangefinders (22) are used to measure the heave and sink of the ship model (4); Two tractors (3), the tractors (3) being respectively arranged at the front and rear ends of the ship model (4), the tractors (3) sailing along the track (2), and two laser rangefinders (31) being arranged on the side of the tractors (3) away from the ship model (4), the laser rangefinders (31) being used to detect the distance from the tractors (3) to the inner wall of the side wall (11) in real time; a traction assembly, the traction assembly being mounted on a side of the tractor (3) close to the ship model (4), and the tractor (3) tows the ship model (4) via the traction assembly; The tractor (3) comprises: A vehicle frame (32), the laser rangefinder (31) and the traction assembly are respectively mounted on both sides of the vehicle frame (32); four wheels (45) are mounted on the vehicle frame (32), and the vehicle frame (32) is supported in a groove on the track (2) by the wheels (45) and navigates along the track (2); Two sets of driving devices, the two sets of driving devices are respectively installed on both sides of the frame (32), the driving devices are connected to a synchronous wheel (46) in a transmission manner, and the synchronous wheel (46) is located at the bottom of the frame (32); a synchronous belt (15) is fixedly connected to the side of the track (2) close to the ship model (4), and the synchronous wheel (46) is engaged with the synchronous belt (15); A controller (39), the controller (39) being mounted at the middle of the top end of the frame (32), the driving device being electrically connected to the controller (39); The driving device comprises: An electric motor (36), the electric motor (36) being transmission-connected to the synchronous wheel (46) via a transmission shaft, and the electric motor (36) being electrically connected to the controller (39); A linear module (35), the linear module (35) being fixedly mounted on the vehicle frame (32), and the linear module (35) being used to adjust the position of the electric motor (36); a battery (38), the battery (38) being used to power the electric motor (36) and the controller (39); The linear module (35) includes a pressure regulating plate (37), and the pressure regulating plate (37) is fixedly mounted on the vehicle frame (32); a baffle is fixedly connected to the top end of the pressure regulating plate (37), a guide rod is slidably connected to the baffle, and a slider is fixedly connected to one end of the guide rod close to the electric motor (36), a bracket plate (33) is fixedly connected to the slider, and the electric motor (36) is mounted on the bracket plate (33); a compression spring (34) is sleeved on the guide rod, and the two ends of the compression spring (34) are respectively in contact with the baffle and the slider.

2. The ship towing and measuring system applicable to the test of the arc-shaped navigable tunnel according to claim 1, characterized in that, The track (2) is of an arc structure and is concentrically arranged with the arc-shaped test water tank (1).

3. The ship towing and measuring system applicable to the test of an arc-shaped navigation tunnel according to claim 2, wherein The track (2) is assembled by several track bodies, and the track body includes: A track bottom plate (12) which is installed at the top end of the side wall (11); A track vertical plate (13) which is fixedly installed at the top end of the track bottom plate (12); A track panel (14) which is arranged between the two track vertical plates (13), and the track panel (14) is fixedly connected to the top of the track vertical plate (13), and a groove is formed between the track panel (14) and the track vertical plate (13).

4. The ship towing and measuring system applicable to the test of an arc-shaped navigable tunnel according to claim 1, characterized in that, The traction assembly includes: Two vertical rods (44) which are respectively fixedly connected to both ends of the vehicle frame (32), and a ball head universal joint (43) is installed at the bottom end of the vertical rod (44); A traction sling (41) which is installed on the ball head universal joint (43), and the traction sling (41) is connected to the ship model (4) through a traction rope (21).

5. The ship towing and measuring system applicable to the test of the arc-shaped navigation tunnel according to claim 4, characterized in that A tension sensor (42) is arranged between the traction sling (41) and the ball head universal joint (43), the tension sensor (42) is electrically connected to the controller (39), and the tension sensor (42) is used to monitor the tension of the traction rope (21) in real time.

6. The ship towing and measuring system applicable to the test of an arc-shaped navigation tunnel according to claim 4, wherein The traction sling (41) is fixedly connected to the ship model (4).

7. The ship towing and measuring system applicable to the test of the arc-shaped navigation tunnel according to claim 1, wherein, The synchronous belt (15) is a T-shaped synchronous belt.

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