CN116062183A - High-speed towing system for cross-medium aircraft water-air crossing test - Google Patents
High-speed towing system for cross-medium aircraft water-air crossing test Download PDFInfo
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- CN116062183A CN116062183A CN202310281136.3A CN202310281136A CN116062183A CN 116062183 A CN116062183 A CN 116062183A CN 202310281136 A CN202310281136 A CN 202310281136A CN 116062183 A CN116062183 A CN 116062183A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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Abstract
The invention belongs to the technical field of aircraft tests, and discloses a high-speed dragging system for a water-air crossing test of a cross-medium aircraft. The water tank track of the high-speed towing system spans the left and right ends of the water tank. The right side of the water tank track is provided with a water tank clamping rail car. The left end of the water tank rail car is connected with the lower surface of the upper section of the rail beam of the model car through a rail beam supporting rod piece mechanism; the middle section is provided with a hydraulic cylinder driving system; the right end of the water tank rail car is provided with a rail clamping device. The left side of the water tank track is provided with a front clamping guide vehicle; the left end of the front guide car is provided with a rail clamping device, and the right end of the front guide car is connected with the upper surface of the lower section of the rail beam of the model car through a front guide assembly. The model car driving system is installed at the top end of the model car track beam, the middle section is provided with an aircraft model through the track model car, and the upper surface of the lower end is provided with an emergency buffer. The device has the capability of realizing the water outlet and inlet speed of 0-120 degrees and the accurate speed adjustment of 0.1-20 m/s without changing the hinge point.
Description
Technical Field
The invention belongs to the technical field of aircraft tests, and particularly relates to a high-speed dragging system for a water-air crossing test of a cross-medium aircraft.
Background
The high-speed dragging system for the water-air crossing test of the cross-medium aircraft is test equipment for developing a motion process for simulating the water inlet and outlet of the cross-medium aircraft by impact, and the motion mechanism drives the model to impact the water inlet and outlet at a certain speed.
The invention discloses a model water inlet and outlet device with variable angles and speeds (application number 202210291775.3), wherein the orbit angle of model water inlet and outlet and the attitude angle of model can be stably adjusted in a large range (generally 30-90 degrees are satisfied). In the water outlet and inlet process, the parameters such as impact load, head deformation and medium separation surface morphology and the like of the model can be synchronously measured, and data support is provided for the development of the aircraft.
However, depending on the actual usage conditions of the cross-medium aircraft, capacity requirements are increased for high-speed towing systems. The angle adjustment range between the water inlet angle and the horizontal line of the model of the high-speed dragging system is required to be enlarged to 0-120 degrees, the water inlet and outlet speed range of the model is required to be enlarged to 0.1-20 m/s, and the speed control precision is required to be 0.1m/s. Meanwhile, due to the limitation of the depth of the water tank and the length of the water inlet and outlet tracks, the cross-medium aircraft model needs to realize speed zeroing in a shorter distance.
Therefore, a high-speed towing system for a cross-medium aircraft water-air crossing test is required to have a larger water inlet and outlet angle and a larger range of water inlet and outlet speed adjusting capability, and a water inlet and outlet track is required to have the geometric characteristics of a long cantilever structure, and in particular, the complex stress of a cross-medium aircraft model in the process of accelerating and decelerating water inlet and outlet has great challenges for structural design.
Currently, there is a need to develop a high speed towing system for cross-medium aircraft water-air ride-through testing.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-speed towing system for a water-air crossing test of a cross-medium aircraft.
The invention relates to a high-speed dragging system for a water-air crossing test of a cross-medium aircraft, which is characterized by comprising a water tank track, a water tank railcar, a water inlet and outlet track assembly, a track model car, a model car driving system, an emergency buffer, a front guide assembly, a front guide car and a rail clamping device; the water inlet and outlet track assembly comprises a hydraulic oil cylinder driving system, a model car track beam and a track beam support rod mechanism;
the water tank track stretches across the water tank, and the lower surfaces of the left end and the right end of the water tank track are respectively fixed on the top surfaces of the left side and the right side of the water tank;
the right side of the water tank track is provided with a clamp and supports the water tank track car; the left end of the water tank rail car is connected with the lower surface of the upper section of the rail beam of the model car through a rail beam supporting rod piece mechanism; the middle section of the water tank rail car is provided with a hydraulic oil cylinder driving system; the right end of the water tank track car is provided with a rail clamping device which is clamped on the lower surface of the right end of the water tank track;
the left side of the water tank track is clamped and used for supporting the front guide vehicle; the left end of the front guide vehicle is provided with a rail clamping device which is clamped on the lower surface of the left end of the water tank rail; the right end of the front guide vehicle is connected with the upper surface of the lower section of the track beam of the model vehicle through a front guide assembly;
the model car track beam is of a long cantilever structure, and a model car driving system is arranged at the top end of the model car track beam; the upper surface of the middle section of the model car track beam is provided with a track model car, and the aircraft model is arranged on the track model car through a model bracket; an emergency buffer is arranged on the upper surface of the lower end of the rail beam of the model car; the model car driving system drives the rail model car through the synchronous belt.
The track beam support rod piece mechanism comprises a fixed hinge support I, a horizontal limit sliding rail, a connecting rod I, a connecting rod II, a connecting rod III and a fixed hinge support II;
the left side of the hydraulic cylinder driving system is provided with a horizontal limiting slide rail and a fixed hinge support I in sequence, and the right side of the hydraulic cylinder driving system is provided with a fixed hinge support II; the left end of a hydraulic rod of the hydraulic cylinder driving system is fixed on a left fixed hinged support I, the right end of the hydraulic rod is fixed with a connecting rod I through a pin, the pin is clamped in a horizontal limiting slide rail, and the pin moves left and right along the horizontal limiting slide rail;
the connecting rod I and the connecting rod III are parallel, the fixed ends of the connecting rod I and the connecting rod III are sequentially hinged to the model car track beam from bottom to top, the middle point of the connecting rod I is hinged to the upper end of the connecting rod II, and the suspension end of the connecting rod III is hinged to the lower portion of the connecting rod II; the lower end of the connecting rod II is hinged to the fixed hinge support I;
the hydraulic cylinder driving system pushes the hydraulic rod to stretch left and right, and the inclination angle of the track beam of the model car is changed through a connecting rod mechanism consisting of a connecting rod I, a connecting rod II and a connecting rod III; in the left-right expansion process of the hydraulic rod, the connecting rod I and the connecting rod III keep parallel phases, and the connecting rod II and the upper surface of the model car track beam keep parallel phases.
Further, the front guide assembly comprises an L-shaped rod, an inclined limiting slide rail and a straight rod;
the inclined limiting slide rail is a lath, a through groove is formed in the central axis, and an upper end notch is formed in the central axis; the vertical section of the L-shaped rod is fixed on the lower surface of the front guide vehicle, the horizontal section of the L-shaped rod is parallel to the water surface, and the tail end of the horizontal section is clamped in the through groove of the inclined limiting slide rail through pin mounting; the straight rod is perpendicular to the upper surface of the rail beam of the model car, the fixed end of the straight rod is fixed on the rail beam of the model car, and the free end of the straight rod is clamped in the through groove of the inclined limiting slide rail through pin mounting;
the hydraulic cylinder driving system drives the model car track beam to change the inclination angle through the track beam supporting rod piece mechanism, so that the front guide assembly drives the front guide car to move left and right along the water tank track, the inclined limiting slide rail limits the transverse displacement of the lower end of the model car track beam, the rigidity in the vertical direction is improved, and when the inclination angle of the model car track beam is smaller than 30 degrees, the model car track beam is separated from the front guide car through a notch at the upper end of the inclined limiting slide rail, so that interference influence is avoided.
Further, the material of the water inlet and outlet track component is 304 steel plates, and the material of the rest components of the high-speed dragging system is Q355B steel plates.
Further, the synchronous belt has elasticity and accords with the standard of circular arc tooth synchronous belts including GBT 13487.
According to the high-speed towing system for the cross-medium aircraft water-air crossing test, the hydraulic cylinder driving system drives the track beam support rod mechanism to realize continuous large-range adjustment of the inclination angle of the model car track beam within the range of 0-120 degrees, and the function of adjusting the water inlet angle of the aircraft model is realized. The aircraft model is driven by the orbit model car to carry out an impact water inlet or impact water outlet test, when the head of the aircraft model contacts the water surface, the model car driving system controls the orbit model car to stop in a decelerating way, and the emergency buffer prevents the model car driving system from braking failure to cause the aircraft model to damage the orbit beam of the model car. The water inlet and outlet speed of the aircraft model is automatically adjusted through the model vehicle driving system, and the attitude angle of the aircraft model is manually adjusted through replacing the model bracket. The front guide assembly and the front guide vehicle limit the transverse displacement of the lower end of the track beam of the model vehicle, and improve the rigidity in the vertical direction; when the inclination angle of the model car track beam is smaller than 30 degrees, the model car track beam is separated from the front guide car through a notch at the upper end of the front guide assembly, so that interference influence is avoided; and when the test is finished, the rail beam of the model car is separated from the water surface, so that rust corrosion damage is reduced, maintenance is convenient, and the service life of the high-speed dragging system is prolonged. The rail clamping device improves the structural stability of the water tank rail car, prevents the water tank rail car from toppling over and inhibits impact load generated when the aircraft model enters and exits water.
In addition, compared with the mode that the traditional hydraulic cylinder directly supports the track beam of the model vehicle, the track beam support rod piece mechanism in the high-speed towing system for the water-air crossing test of the medium-crossing aircraft can effectively reduce the stroke of the hydraulic rod and improve the stability of a hydraulic cylinder driving system. Meanwhile, the inclination angle of the model car track beam (4) can be adjusted within the range of 0-120 degrees without changing hinge points, and the working condition capability that the inclination angle is larger than 90 degrees is realized for the first time.
The high-speed towing system for the cross-medium aircraft water-air crossing test has the following characteristics:
1. through design basin railcar, the structural dimension and the connected mode of business turn over water track subassembly and preceding direction subassembly, under the condition that hydraulic cylinder stroke is shorter, the hinge point is not changed, possess aircraft model wide range angle adjustment ability of entering water, make the angle range between angle of entering water and the horizontal line be 0 ~120, realized the impact water test operating mode that is greater than 90 to higher stability has been possessed.
2. The model car driving system adopts a synchronous belt driven by a secondary adjusting hydraulic motor to drive the aircraft model to enter and exit water at a high speed, so that the short-distance speed large-range adjusting capability and the high-precision speed control precision are realized.
3. The front guide assembly and the front guide vehicle are added at the water inlet end of the model vehicle track beam, the front guide vehicle has the functions of combining and separating with the model vehicle track beam, the rigidity of the water inlet and outlet track assembly is improved, the model vehicle track beam is not hindered from separating from the water surface, corrosion damage is reduced, and maintenance safety is improved.
In summary, the high-speed towing system for the cross-medium aircraft water-air crossing test has the capability of realizing large-angle water inlet and outlet angles (0-120 degrees), large-range water outlet and inlet speeds (0.1-20 m/s) and more accurate speed adjustment (0.1 m/s) without changing hinge points, and can provide technical support for cross-medium aircraft development.
Drawings
The invention is described in detail below with reference to the drawings and examples.
FIG. 1 is a schematic structural view of a high-speed towing system for a cross-medium aircraft water-air ride-through test of the present invention;
FIG. 2 is an enlarged view of the track beam support bar mechanism of the present invention in a high speed towing system for a cross-media aircraft water space ride through test.
In the figure, 1. A sink rail; 2. a flume railcar; 3. a hydraulic cylinder driving system; 4. model car track beam; 5. the track beam supports the rod piece mechanism; 6. a rail model car; 7. a model car driving system; 8. an emergency buffer; 9. a front guide assembly; 10. a front guide vehicle; 11. a rail clamp;
501. a fixed hinge support I; 502. a horizontal limit sliding rail; 503. a connecting rod I; 504. a connecting rod II; 505. a connecting rod III; 506. a fixed hinge support II;
l-shaped rod; 902. tilting the limit slide rail; 903. a straight rod.
Description of the embodiments
The invention is described in detail below with reference to the drawings and examples.
As shown in fig. 1, the high-speed towing system for the cross-medium aircraft water space crossing test comprises a water tank track 1, a water tank track car 2, a water inlet and outlet track assembly, a track model car 6, a model car driving system 7, an emergency buffer 8, a front guide assembly 9, a front guide car 10 and a rail clamping device 11; the water inlet and outlet track assembly comprises a hydraulic oil cylinder driving system 3, a model car track beam 4 and a track beam support rod piece mechanism 5;
the water tank track 1 stretches across the water tank, and the lower surfaces of the left end and the right end of the water tank track 1 are respectively fixed on the top surfaces of the left side and the right side of the water tank;
the right side of the water tank track 1 is provided with a clamp and supports the water tank track car 2; the left end of the water tank track car 2 is connected with the lower surface of the upper section of the model car track beam 4 through a track beam support rod piece mechanism 5; a hydraulic cylinder driving system 3 is arranged in the middle section of the water tank track car 2; the right end of the water tank track car 2 is provided with a rail clamping device 11 which is clamped on the lower surface of the right end of the water tank track 1;
the left side of the water tank track 1 is clamped and supports a front guide car 10; the left end of the front guide car 10 is provided with a rail clamping device 11 which is clamped on the lower surface of the left end of the water tank rail 1; the right end of the front guide car 10 is connected with the upper surface of the lower section of the model car track beam 4 through a front guide assembly 9;
the model car track beam 4 is of a long cantilever structure, and a model car driving system 7 is arranged at the top end of the model car track beam 4; the upper surface of the middle section of the model car track beam 4 is provided with a track model car 6, and an aircraft model is arranged on the track model car 6 through a model bracket; the upper surface of the lower end of the model car track beam 4 is provided with an emergency buffer 8; the model car driving system 7 drives the rail model car 6 through a synchronous belt.
Further, as shown in fig. 2, the track beam support rod mechanism 5 includes a fixed hinge support i 501, a horizontal limit slide rail 502, a connecting rod i 503, a connecting rod ii 504, a connecting rod iii 505, and a fixed hinge support ii 506;
a horizontal limit sliding rail 502 and a fixed hinge support I501 are sequentially arranged on the left side of the hydraulic cylinder driving system 3, and a fixed hinge support II 506 is arranged on the right side; the left end of a hydraulic rod of the hydraulic cylinder driving system 3 is fixed on a left fixed hinged support I501, the right end of the hydraulic rod is fixed with a connecting rod I503 through a pin, the pin is clamped in a horizontal limiting slide rail 502, and the pin moves left and right along the horizontal limiting slide rail 502;
the connecting rod I503 and the connecting rod III 505 are parallel, the fixed ends of the connecting rod I503 and the connecting rod III 505 are sequentially hinged on the model car track beam 4 from bottom to top, the middle point of the connecting rod I503 is hinged at the upper end of the connecting rod II 504, and the suspension end of the connecting rod III 505 is hinged at the lower part of the connecting rod II 504; the connecting rod II 504 is parallel to the upper surface of the model car track beam 4, and the lower end of the connecting rod II 504 is hinged to the fixed hinge support I501;
the hydraulic cylinder driving system 3 pushes the hydraulic rod to stretch left and right, and the inclination angle of the model car track beam 4 is changed through a connecting rod mechanism consisting of a connecting rod I503, a connecting rod II 504 and a connecting rod III 505; in the left-right expansion process of the hydraulic rod, the connecting rod I503 and the connecting rod III 505 keep parallel phases, and the connecting rod II 504 and the upper surface of the model car track beam 4 keep parallel phases.
Further, the front guide assembly 9 comprises an L-shaped rod 901, an inclined limit sliding rail 902 and a straight rod 903;
the inclined limiting slide rail 902 is a lath, a through groove is formed in the central axis, and an upper end notch is formed; the vertical section of the L-shaped rod 901 is fixed on the lower surface of the front guide vehicle 10, the horizontal section of the L-shaped rod 901 is parallel to the water surface, and the tail end of the horizontal section is clamped in a through groove of the inclined limiting slide rail 902 through a pin; the straight rod 903 is perpendicular to the upper surface of the model car track beam 4, the fixed end of the straight rod 903 is fixed on the model car track beam 4, and the free end of the straight rod 903 is clamped in the through groove of the inclined limiting slide rail 902 through pin installation;
the hydraulic cylinder driving system 3 drives the model car track beam 4 to change the inclination angle through the track beam support rod piece mechanism 5, so that the front guide assembly 9 drives the front guide car 10 to move left and right along the water tank track 1, the inclined limiting slide rail 902 limits the transverse displacement of the lower end of the model car track beam 4, the rigidity in the vertical direction is improved, and when the inclination angle of the model car track beam 4 is smaller than 30 degrees, the model car track beam 4 is separated from the front guide car 10 through a notch at the upper end of the inclined limiting slide rail 902, so that interference influence is avoided.
Further, the material of the water inlet and outlet track component is 304 steel plates, and the material of the rest components of the high-speed dragging system is Q355B steel plates.
Further, the synchronous belt has elasticity and accords with the standard of circular arc tooth synchronous belts including GBT 13487.
Example 1
For simplicity of description, the aircraft model in embodiment 1 is simply referred to as a model, and the hydraulic motor is simply referred to as a motor.
The high-speed towing system for cross-medium aircraft water-air ride-through test of the present embodiment can be used for the following conditions:
a. model low-speed water inlet
The model enters water from air, the speed is less than 10m/s (corresponding to the rotation speed of a hydraulic motor of 750rpm, positive rotation), and the following two test conditions exist:
uniform water inlet working condition: accelerating the model from rest, wherein the speed reaches a set constant speed value before the head enters water; in the whole process (still water condition) from the contact of the model head with the water surface to the complete water entering of the model, the model is maintained in a constant speed state; after the tail of the pattern is fully flooded, the pattern begins to slow down and stops before reaching the end of the track. In the constant speed stage before the model enters water, when the constant speed value set by the model is between 0.1m/s and 10m/s (corresponding to the motor rotating speed range of 60rpm to 750 rpm), the speed control precision is +/-0.1 m/s (corresponding to the motor rotating speed precision of +/-7.5 rpm).
Free water inlet working condition: accelerating the model from rest, wherein the speed reaches a set constant speed value before the head enters water; when the head of the model is at a certain distance from the water surface, the motor starts to unload; before the head of the model contacts the water surface, the motor is completely unloaded, the output torque is zero, and the model freely enters water; after the tail of the model is completely filled with water, the motor loads and outputs braking moment, and the model is decelerated and stopped before reaching the end of the track. When the model is set to have a constant speed value between 0.1m/s and 10m/s at a constant speed stage before the model enters water and the motor is not unloaded, the speed control precision is +/-0.1 m/s.
b. Model high-speed water inlet
The model enters water from air, the speed is between 10m/s and 20m/s (corresponding to the rotation speed range of 750rpm and 1500rpm of the hydraulic motor, and the model rotates positively), and the following two test conditions exist.
Uniform water inlet working condition: accelerating the model from rest, wherein the speed reaches a set constant speed value before the head enters water; in the whole process (still water condition) from the contact of the model head with the water surface to the complete water entering of the model, the model is maintained in a constant speed state; after the tail of the pattern is fully flooded, the pattern begins to slow down and stops before reaching the end of the track.
Free water inlet working condition: accelerating the model from rest, wherein the speed reaches a set constant speed value before the head enters water; when the head of the model is at a certain distance from the water surface, the motor starts to unload; before the head of the model contacts the water surface, the motor is completely unloaded, the output torque is zero, and the model freely enters water; after the tail of the model is completely filled with water, the motor loads and outputs braking moment, and the model is decelerated and stopped before reaching the end of the track.
c. Model water outlet
The model enters air from water, the speed is less than 10m/s (corresponding to the rotation speed of the hydraulic motor of 750rpm and reverse rotation), and the following two test conditions exist.
Uniform-speed water outlet working condition: accelerating the model from rest, wherein the speed reaches a set constant speed value before the water is discharged from the head; in the whole process (still water condition) from the contact of the model head with the water surface to the complete water outlet of the model, the model is maintained in a constant speed state; after the tail of the pattern is completely discharged, the pattern starts to slow down and stops before reaching the end of the track.
Free water outlet working condition: accelerating the model from rest, wherein the speed reaches a set constant speed value before the water is discharged from the head; when the head of the model is at a certain distance from the water surface, the motor starts to unload; before the head of the model contacts the water surface, the motor is completely unloaded, and the output moment is zero, so that the model can freely discharge water. After the tail of the model is completely discharged, the motor starts to load and output braking torque, so that the model is decelerated and stopped before reaching the end of the track.
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention without inventive work by those skilled in the art from the above-described concepts.
Claims (5)
1. The high-speed towing system for the water-air crossing test of the medium-crossing aircraft is characterized by comprising a water tank track (1), a water tank track car (2), a water inlet and outlet track assembly, a track model car (6), a model car driving system (7), an emergency buffer (8), a front guide assembly (9), a front guide car (10) and a rail clamping device (11); the water inlet and outlet track assembly comprises a hydraulic oil cylinder driving system (3), a model car track beam (4) and a track beam support rod piece mechanism (5);
the water tank track (1) stretches across the water tank, and the lower surfaces of the left end and the right end of the water tank track (1) are respectively fixed on the top surfaces of the left side and the right side of the water tank;
the right side of the water tank track (1) is provided with a clamp and supports the water tank track car (2); the left end of the water tank track car (2) is connected with the lower surface of the upper section of the model car track beam (4) through a track beam support rod piece mechanism (5); a hydraulic cylinder driving system (3) is arranged at the middle section of the water tank track car (2); the right end of the water tank track car (2) is provided with a rail clamping device (11) clamped on the lower surface of the right end of the water tank track (1);
the left side of the water tank track (1) is clamped and supports a front guide vehicle (10); the left end of the front guide car (10) is provided with a rail clamping device (11) which is clamped on the lower surface of the left end of the water tank rail (1); the right end of the front guide vehicle (10) is connected with the upper surface of the lower section of the model vehicle track beam (4) through a front guide assembly (9);
the model car track beam (4) is of a long cantilever structure, and a model car driving system (7) is arranged at the top end of the model car track beam (4); the upper surface of the middle section of the model car track beam (4) is provided with a track model car (6), and the aircraft model is arranged on the track model car (6) through a model bracket; an emergency buffer (8) is arranged on the upper surface of the lower end of the model car track beam (4); the model car driving system (7) drives the rail model car (6) through the synchronous belt.
2. The high-speed towing system for the water-air ride-through test of the cross-media aircraft according to claim 1, wherein the track beam support bar mechanism (5) comprises a fixed hinge support I (501), a horizontal limit slide rail (502), a connecting rod I (503), a connecting rod II (504), a connecting rod III (505) and a fixed hinge support II (506);
a horizontal limit sliding rail (502) and a fixed hinge support I (501) are sequentially arranged on the left side of a hydraulic cylinder driving system (3), and a fixed hinge support II (506) is arranged on the right side; the left end of a hydraulic rod of the hydraulic cylinder driving system (3) is fixed on a left fixed hinged support I (501), the right end of the hydraulic rod is fixed with a connecting rod I (503) through a pin, the pin is clamped in a horizontal limiting slide rail (502), and the pin moves left and right along the horizontal limiting slide rail (502);
the connecting rod I (503) is parallel to the connecting rod III (505), the fixed ends of the connecting rod I (503) and the connecting rod III (505) are sequentially hinged on the model car track beam (4) from bottom to top, the middle point of the connecting rod I (503) is hinged at the upper end of the connecting rod II (504), and the suspension end of the connecting rod III (505) is hinged at the lower part of the connecting rod II (504); the connecting rod II (504) is parallel to the upper surface of the model car track beam (4), and the lower end of the connecting rod II (504) is hinged to the fixed hinge support I (501);
the hydraulic cylinder driving system (3) pushes the hydraulic rod to stretch left and right, and the inclination angle of the model car track beam (4) is changed through a connecting rod mechanism consisting of a connecting rod I (503), a connecting rod II (504) and a connecting rod III (505); in the left-right expansion process of the hydraulic rod, the connecting rod I (503) and the connecting rod III (505) keep parallel phases, and the connecting rod II (504) and the upper surface of the model car track beam (4) keep parallel phases.
3. The high-speed towing system for cross-media aircraft water-air ride-through test of claim 1, wherein the front guide assembly (9) comprises an L-shaped bar (901), an inclined limit slide rail (902) and a straight bar (903);
the inclined limiting slide rail (902) is a lath, a through groove is formed in the central axis, and an upper end notch is formed in the central axis; the vertical section of the L-shaped rod (901) is fixed on the lower surface of the front guide vehicle (10), the horizontal section of the L-shaped rod (901) is parallel to the water surface, and the tail end of the horizontal section is clamped in a through groove of the inclined limiting slide rail (902) through a pin; the straight rod (903) is perpendicular to the upper surface of the model car track beam (4), the fixed end of the straight rod (903) is fixed on the model car track beam (4), and the free end of the straight rod (903) is clamped in a through groove of the inclined limiting slide rail (902) through a pin;
the hydraulic cylinder driving system (3) drives the model car track beam (4) to change the inclination through the track beam supporting rod piece mechanism (5), so that the front guide assembly (9) drives the front guide car (10) to move left and right along the water tank track (1), the inclined limiting sliding rail (902) limits the transverse displacement of the lower end of the model car track beam (4), and improves the rigidity in the vertical direction, and when the inclination of the model car track beam (4) is smaller than 30 degrees, the model car track beam (4) is separated from the front guide car (10) through a notch at the upper end of the inclined limiting sliding rail (902), so that interference influence is avoided.
4. The high-speed towing system for cross-medium aircraft water-air crossing test according to claim 1, wherein the material of the water inlet and outlet track assembly is 304 steel plates, and the material of the rest components of the high-speed towing system is Q355B steel plates.
5. The high-speed towing system for a cross-medium aircraft water-air ride-through test of claim 1, wherein the timing belt is elastic and meets the circular tooth timing belt standard including GBT 13487.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310281136.3A CN116062183B (en) | 2023-03-22 | 2023-03-22 | High-speed towing system for cross-medium aircraft water-air crossing test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310281136.3A CN116062183B (en) | 2023-03-22 | 2023-03-22 | High-speed towing system for cross-medium aircraft water-air crossing test |
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| CN116062183A true CN116062183A (en) | 2023-05-05 |
| CN116062183B CN116062183B (en) | 2023-06-09 |
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