Ship dragging and measuring system suitable for arc-shaped navigable tunnel test

Abstract

The invention relates to the technical field of ship test devices, and particularly discloses a ship towing and measuring system suitable for an arc-shaped navigable tunnel test, which can realize that a ship model travels along a channel center line in an arc-shaped test water tank at a constant speed by controlling the forward speed of a front tractor and a rear tractor; the ship model is unconstrained in the vertical direction and can freely heave, and the heave amount of the ship model can be measured in real time during a test; the advancing direction of the tractor is convertible, so that the ship model can run bidirectionally; the tractor is connected with the ship model through a traction rope, and the sailing resistance of the ship model is measured through the pulling force of the traction rope during testing; through the arrangement of the laser range finder and the independent control of the synchronous wheel, the precise positioning of the ship model is realized, and the displacement and the navigational speed of the ship model are conveniently controlled. By means of the innovative design of the front tractor and the rear tractor which operate in orbit, the defects in arc-shaped channel measurement and control in the prior art are overcome, and arc-shaped channel ship dragging intelligent simulation and synchronous measurement of navigation elements are achieved.

Description

Technical Field

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

[0002] The ship towing test is an important method to explore the optimization of ship performance by measuring the change law of the ship's resistance under different motion states, analyzing the flow characteristics of the ship and water. The ship towing test has important application value in ship design and performance optimization. Through the test, we can explore the change law of the ship's resistance under different motion states, analyze the flow characteristics of the ship and water, and provide an important basis for the design and performance optimization of the ship.

[0003] There are many ship towing pools at present, but they are all towing devices for straight channels. There is no ship towing test device suitable for curved channels.

[0004] Therefore, it is urgent to provide a ship towing and measuring system suitable for arc-shaped navigation tunnel testing to solve the shortcomings of the existing technology in arc-shaped channel measurement and control. Summary of the invention

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

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

[0007] Curved test flume;

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

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

[0010] Two tractors, the tractors are respectively arranged at the front and rear ends of the ship model, the tractors sail along the track, and two laser rangefinders are arranged on the side of the tractors away from the ship model, 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 is installed on a side of the tractor close to the ship model, and the tractor tows the ship model through the traction assembly.

[0012] Preferably, the track is an arc-shaped structure, and the track is arranged concentrically with the arc-shaped test water tank.

[0013] Preferably, the track is assembled from a plurality of track sections, and the track section comprises:

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

[0015] A track riser, the track riser being fixedly mounted on the top of the track bottom plate;

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

[0017] Preferably, the tractor comprises:

[0018] A frame, the laser rangefinder and the traction assembly are respectively mounted on both sides of the frame; four wheels are mounted on the frame, and the frame is supported in the grooves on the track by the wheels and sails along the track;

[0019] Two sets of driving devices, the two sets of driving devices are respectively installed on both sides of the frame, the driving devices are drivingly connected with synchronous wheels, and the synchronous wheels are located at the bottom of the frame; a synchronous belt is fixedly connected to the side of the track close to the ship model, and the synchronous wheel is meshed with the synchronous belt;

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

[0021] Preferably, the driving device comprises:

[0022] An electric motor, the electric motor is transmission-connected to the synchronous wheel via a transmission shaft, and the electric motor is electrically connected to the controller;

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

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

[0025] Preferably, the linear module includes a pressure regulating plate, which is fixedly mounted on the frame; a baffle is fixedly connected to the top of the pressure regulating plate, 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, a bracket plate is fixedly connected to the slider, and the electric motor is mounted on the bracket plate; a compression spring is sleeved on the guide rod, and both ends of the compression spring are respectively abutted against the baffle and the slider.

[0026] Preferably, the traction assembly comprises:

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

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

[0029] Preferably, a tension sensor is provided between the traction lifting ring and the ball joint, the tension sensor is electrically connected to the controller, and the tension sensor is used to monitor the tension of the traction rope in real time.

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

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

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

[0033] The ship towing and measuring system suitable for arc-shaped navigation tunnel tests provided by the present invention can realize the ship model traveling at a uniform speed along the center line of the channel in the arc-shaped test water tank by controlling the forward speeds of the front and rear two tractors; the ship model has no constraints in the vertical direction and can rise and sink freely, and the heave and sink amount of the ship model can be measured in real time during the test; the traveling direction of the tractor can be switched, so that the ship model can run in both directions; and the setting of the laser rangefinder can realize accurate positioning of the ship model, so that the displacement and speed of the ship model can be conveniently controlled.

[0034] The present invention solves the shortcomings of the prior art in arc channel measurement and control through the innovative design of two front and rear on-track tractors, and realizes intelligent simulation of ship towing in an arc channel and synchronous measurement of navigation elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a structural schematic diagram of a ship towing and measuring system suitable for arc-shaped navigation tunnel testing of the present invention;

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

[0038] Figure 3 This is a schematic diagram of detecting the heave of a ship model according to the present invention;

[0039] Figure 4 It is a structural schematic diagram of the tractor of the present invention;

[0040] Figure 5 It is a structural schematic 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. traction rope; 22. radar rangefinder; 31. laser rangefinder; 32. frame; 33. bracket plate; 34. compression spring; 35. linear module; 36. electric motor; 37. pressure regulating plate; 38. battery; 39. controller; 41. traction lifting ring; 42. tension sensor; 43. ball head universal joint; 44. vertical pole; 45. wheel; 46. synchronous wheel. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection 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] like Figures 1 to 5 As shown, the present invention provides a ship towing and measuring system suitable for arc-shaped navigation tunnel testing, comprising:

[0044] Arc test flume 1;

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

[0046] The ship model 4 has radar rangefinders 22 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;

[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 tractors 3 away from the ship model 4, the laser rangefinders 31 are used to detect the distance from the tractors 3 to the inner wall of the side wall 11 in real time;

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

[0049] The present invention can realize the ship model 4 traveling at a uniform speed along the center line of the channel in the arc test water tank 1 by controlling the forward speed of the front and rear tractors 3; 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 traveling direction of the tractor 3 can be switched, so that the ship model 4 can run in both directions; and the laser rangefinder 31 is provided to realize the accurate positioning of the ship model 4, so as to facilitate the control of the displacement and speed of the ship model 4.

[0050] The present invention solves the shortcomings of the prior art in arc channel measurement and control through the innovative design of two front and rear tractors 3 running on track, and realizes intelligent simulation of ship towing in an 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 scheme, track 2 is assembled from several sections of track bodies, which include:

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

[0054] A track riser 13, the track riser 13 is fixedly mounted on the top of the track bottom plate 12;

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

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

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

[0058] Two sets of driving devices are respectively installed on both sides of the frame 32, and the driving 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 meshed 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 optimizing the scheme, the driving device includes:

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

[0062] A linear module 35, which is fixedly mounted on the 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] A further optimized solution is that the linear module 35 includes a pressure regulating plate 37, which is fixedly mounted on the frame 32; a baffle is fixedly connected to the top 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 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 abutted against the baffle and the slider.

[0065] By providing the compression spring 34 , the synchronous wheel 46 can be pushed to be pressed and meshed with the synchronous belt 15 on the inner side of the track 2 , thereby ensuring the effectiveness of the transmission.

[0066] To further optimize the solution, the traction components include:

[0067] Two vertical rods 44, the two vertical rods 44 are fixedly connected to the two ends of the frame 32, and the bottom ends of the vertical rods 44 are installed with ball head universal joints 43;

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

[0069] To further optimize the solution, a tension sensor 42 is provided between the traction ring 41 and the ball joint 43 . The tension sensor 42 is electrically connected to the controller 39 . The tension sensor 42 is used to monitor the tension of the traction rope 21 in real time.

[0070] According to a further optimization scheme, a traction ring 41 is fixedly connected to the ship model 4.

[0071] According to a further optimized solution, the synchronous belt 15 is a T-tooth synchronous belt.

[0072] The ship towing and measuring system provided by the present invention is suitable for arc-shaped navigation tunnel testing, and its working principle is as follows:

[0073] The ship model 4 is towed and sailed in the arc-shaped test water tank 1 by two tractors 3 at the front and 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 and sink 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 tractor 3, and during the test, the distance from the tractor 3 to the inner wall of the side wall 11 is detected in real time; when the distance exceeds the set interval, it is judged that the tractor 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 tractor 3, and the four wheels 45 are supported on the rails 2 on both sides, and the wheel flanges are immersed in the grooves of the rails 2 and roll in the grooves, so that the tractor 3 can sail along the rails 2. A set of driving devices is installed on both sides of the frame 32, each of which has an electric motor 36. The electric motor 36 drives the synchronous wheel 46 at the bottom of the vehicle body to rotate through the transmission shaft; the electric motor 36 is fixed on the slider of the linear module 35 through the bracket plate 33, so that it can slide horizontally; there are two compression springs 34 on the rear side of the bracket plate 33, and the compression springs 34 are used to push the synchronous wheel 46 to press and engage with the synchronous belt 15 on the inner side of the track 2, so as to control the forward movement of the vehicle body. Each electric motor 36 has an independent power supply and driving module, and the speed of each can be controlled separately through a computer program. Two vertical poles 44 are fixed on the frame 32 of the tractor 3, and a set of ball joints 43 are installed at the bottom of the vertical poles 44. A tension sensor 42 is installed at the end of the ball joint 43 and is connected in series with the traction rope 21 to monitor the tension of the two traction ropes 21 in real time. The operation control of the two tractors 3 is implemented through a computer program to simulate the ship traveling in an arc channel and measure the navigation elements such as heave, navigation resistance, and ship positioning.

[0074] The above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A ship towing and measuring system suitable for arc-shaped navigation tunnel testing, 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 sinking 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, wherein the traction assembly is 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.

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

3. The ship towing and measuring system for arc-shaped navigation tunnel test according to claim 2 is characterized in that: The track (2) is assembled from a plurality of track sections, and the track section comprises: A track bottom plate (12), the track bottom plate (12) being mounted on the top of the side wall (11); A track riser (13), the track riser (13) being fixedly mounted on the top of the track bottom plate (12); A track panel (14), wherein the track panel (14) is arranged between the two track uprights (13), and the track panel (14) is fixedly connected to the top of the track uprights (13), and a groove is formed between the track panel (14) and the track uprights (13).

4. The ship towing and measuring system for arc-shaped navigation tunnel test according to claim 1 is characterized in that: The tractor (3) comprises: A vehicle frame (32), the laser rangefinder (31) and the traction assembly being mounted on both sides of the vehicle frame (32) respectively; four wheels (45) being mounted on the vehicle frame (32), the vehicle frame (32) being supported in a groove on the track (2) by the wheels (45) and navigating 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 drivingly connected to a synchronous wheel (46), and the synchronous wheel (46) is located at the bottom of the frame (32); a synchronous belt (15) is fixedly connected to one side of the track (2) close to the ship model (4), and the synchronous wheel (46) is meshed with the synchronous belt (15); A controller (39), the controller (39) being mounted at the middle of the top end of the frame (32), and the drive device being electrically connected to the controller (39).

5. The ship towing and measuring system for arc-shaped navigation tunnel test according to claim 4 is characterized in that: 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), the linear module (35) being used to adjust the position of the electric motor (36); A battery (38), wherein the battery (38) is used to supply power to the electric motor (36) and the controller (39).

6. The ship towing and measuring system for arc-shaped navigation tunnel test according to claim 5 is characterized in that: The linear module (35) comprises a pressure regulating plate (37), and the pressure regulating plate (37) is fixedly mounted on the frame (32); a baffle is fixedly connected to the top of the pressure regulating plate (37), 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 (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 two ends of the compression spring (34) are respectively in contact with the baffle and the slider.

7. The ship towing and measuring system for arc-shaped navigation tunnel test according to claim 4 is characterized in that: The traction assembly comprises: Two vertical rods (44), the two vertical rods (44) are respectively fixedly connected to the two ends of the vehicle frame (32), and the bottom ends of the vertical rods (44) are installed with ball head universal joints (43); A traction lifting ring (41), wherein the traction lifting ring (41) is mounted on the ball head universal joint (43), and the traction lifting ring (41) is connected to the ship model (4) via a traction rope (21).

8. The ship towing and measuring system for arc-shaped navigation tunnel test according to claim 7 is characterized in that: A tension sensor (42) is provided between the traction lifting ring (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.

9. The ship towing and measuring system for arc-shaped navigation tunnel test according to claim 7 is characterized in that: The traction lifting ring (41) is fixedly connected to the ship model (4).

10. The ship towing and measuring system for arc-shaped navigation tunnel test according to claim 4, characterized in that: The synchronous belt (15) is a T-toothed synchronous belt.

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