Simulation tail paddle mechanism

Abstract

The utility model relates to a simulated tail paddle mechanism, and belongs to the technical field of aviation machinery. In order to solve the problem that the training effect is not ideal due to the fact that the change of a tail rotor cannot be completely simulated when the existing tail rotor is displayed, the utility model provides a simulated tail rotor mechanism, and the tail rotor mechanism can really simulate the operation condition of a tail rotor blade when the course of an airplane is changed. The simulated tail rotor mechanism comprises a tail rotor hub (1) and a rotation driving assembly (2) for driving the tail rotor hub (1) to rotate, and is characterized in that a variable-torque piece (3) is mounted on the inner side of the tail rotor hub (1), a plurality of blades (4) are uniformly mounted on the tail rotor hub (1), each blade (4) is fixedly mounted on the variable-torque piece (3), and the variable-torque piece (3) is fixedly mounted on the tail rotor hub (1). And a torque conversion driving assembly (5) for driving the torque conversion piece (3) to move is mounted at the other end of the torque conversion piece (3).

Description

TECHNICAL FIELD

[0001] The utility model relates to a simulation machine tail paddle mechanism and belongs to the technical field of aviation machinery. BACKGROUND

[0002] The helicopter control and transmission teaching and training system can truly simulate the control and transmission process of the helicopter, and can dynamically display the control and transmission principle, so that the pilot can preliminarily experience the control and transmission process of the helicopter, improve the efficiency of formal training of the pilot, and enhance the training effect.

[0003] The training system simulates the whole machine body of the AC312 helicopter, wherein the cabin layout is simulated according to the actual machine 1:1, the onboard devices such as the instrument panel and the control console adopt similar simulation parts, the avionics and the instruments are simulated in a virtual manner by cooperating the multifunctional display with the touch display, have dynamic characteristics, and help the trainees to be familiar with the equipment performance. The cabin is configured as a double seat, and is provided with a collective control lever, a cyclic control lever, a footrest control mechanism, a rotor brake handle and the like, and the mechanical structure and layout configuration are simulated to the actual machine. The system has intelligent guiding and control prompting functions, and can provide the operation process and the instruction information from the cabin inspection to the take-off process after the user enters the cabin.

[0004] The control system and the transmission system are arranged on the profiled helicopter body in proportion, the form and the arrangement of the mechanical entity structure are simulated to the actual machine, the main transmission process and the control process can be dynamically demonstrated, the basic structure of the rotor hub and the rotor blade can be demonstrated, the flapping, the whirling and the pitch change motion of the rotor and the brake process can be dynamically demonstrated. The tail rotor pitch change control can be realized by the footrest.

[0005] However, during the simulation teaching, the tail rotor of the airplane does not have actual pitch change motion caused by the operation of the trainee, that is, the trainee cannot directly observe the change of the tail rotor when the airplane changes the heading, therefore, in order to more truly simulate the change of the tail rotor during the flight of the airplane, the present application designs an airplane tail rotor mechanism which can truly simulate the change of the tail rotor during the operation of the airplane. UTILITY MODEL CONTENT

[0006] The utility model discloses a kind of simulation machine tail paddle mechanisms, and the tail paddle mechanism can truly simulate the running condition of the paddle of airplane under the condition of encountering wind resistance.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme:

[0008] A simulator tail rotor mechanism includes a tail rotor hub and a rotation drive assembly for driving the tail rotor hub to rotate. The key feature is that a torque converter is installed inside the tail rotor hub, and multiple blades are evenly installed on the tail rotor hub. Each blade is fixedly installed on the torque converter, and a torque drive assembly for driving the torque converter to move is installed at the other end of the torque converter.

[0009] Preferably, the tail rotor hub is a cylindrical tube, and the circumferential surface of the tail rotor hub is provided with bearing mounting holes of the same number as the number of blades. One side of the tail rotor hub is provided with a bottom surface, and the bottom surface is provided with mounting holes A. A tail rotor hub end cap is fixedly installed on the other side of the tail rotor hub, and the tail rotor hub and the tail rotor hub end cap are fixed by screws.

[0010] Preferably, the rotation drive assembly includes a motor, and a reducer is installed at the output end of the motor. The reducer includes a drive bevel gear mounting shaft, on which a drive bevel gear is mounted, and the drive bevel gear meshes with a driven bevel gear mounted on a driven bevel gear mounting shaft.

[0011] Preferably, the reduction ratio of the reducer is 1.1:1;

[0012] Preferably, a coupling is installed on the output shaft of the motor, the other end of the coupling is installed on the driving bevel gear mounting shaft, and the other end of the driven bevel gear mounting shaft is installed in the mounting hole A of the tail rotor hub;

[0013] Preferably, the torque converter is a cylindrical tube, and the circumferential surface of the torque converter is provided with the same number of positioning holes as the blades, and the end face of the torque converter near the tail rotor hub end cover is provided with several fixing holes.

[0014] Preferably, a torque converter end cover is fixedly installed on the side of the torque converter near the tail rotor hub end cover. The torque converter end cover is a disc with mounting holes B, which are the same number as the fixing holes. The fixing holes and mounting holes B are fixed by bolts.

[0015] Preferably, the blades are provided with at least 10 blades, and the root of each blade is installed in a blade root bearing. The blade root bearing is installed in a bearing mounting hole in the circumferential direction of the tail rotor hub, and a torque-changing pin is eccentrically provided at the root of each blade.

[0016] Preferably, the torque converter pin is installed in the positioning hole;

[0017] Preferably, the variable moment driving assembly comprises an electric push rod, an output end of the electric push rod is fixedly installed on the first fixed block, a second fixed block is fixedly installed in front of the first fixed block, a variable moment rod mounting hole A is arranged on the second fixed block, a variable moment rod is installed in the variable moment rod mounting hole A, the variable moment rod is sleeved on the inner side of the driven bevel gear mounting shaft, and the other end of the variable moment rod is fixedly installed on a variable moment piece.

[0018] Preferably, a variable moment rod supporting disc is installed between the second fixed block and the speed reducer, and a variable moment rod mounting hole B is arranged on the variable moment rod supporting disc.

[0019] The simulation tail rotor mechanism of the utility model, through setting variable moment piece on the paddle and setting variable moment driving assembly driving its movement on one end of the variable moment piece, can realize deflection of the paddle in axial direction, truly simulate running condition of the paddle under conditions such as wind resistance of the airplane, and make training simulation more close to reality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is a second angle schematic view; Figure 1

[0022] Figure 3 It is a third angle schematic view; Figure 1

[0023] Figure 4 It is a structural schematic view of removing the tail rotor hub end cover;

[0024] Figure 5 It is a structural schematic view of the tail rotor hub;

[0025] Figure 6 It is a structural schematic view of the tail rotor hub end cover;

[0026] Figure 7 It is a structural schematic view of the speed reducer;

[0027] Figure 8 It is a structural schematic view of the variable moment piece;

[0028] Figure 9 It is a structural schematic view of the variable moment piece end cover;

[0029] Figure 10 It is an installation schematic view of the paddle;

[0030] Figure 11 It is a use schematic view of the utility model;

[0031] ​​In the diagram: 1. Tail rotor hub; 11. Bearing mounting hole; 12. Mounting hole A; 2. Rotary drive assembly; 21. Motor; 22. Reducer; 23. Driven bevel gear mounting shaft; 24. Driven bevel gear; 25. Driven bevel gear mounting shaft; 26. Driven bevel gear; 27. Coupling; 3. Torque converter; 31. Positioning hole; 32. Fixing hole; 4. Blade; 5. Torque converter drive assembly; 51. Electric push rod; 52. First fixing block; 53. Second fixing block; 54. Torque converter rod mounting hole A; 55. Torque converter rod; 56. Torque converter rod mounting hole B; 6. Root bearing; 7. Torque converter pin; 8. Tail rotor hub end cap; 9. Torque converter component end cap; 91. Mounting hole B; 10. Torque converter rod support plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments of the present utility model. All other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present utility model.

[0033] Example 1. As... Figures 1-4 The tail rotor mechanism of the simulator shown includes a tail rotor hub 1, a rotation drive assembly 2 for driving the tail rotor hub 1 to rotate, a torque converter 3 installed on the inner side of the tail rotor hub 1, and a plurality of blades 4 evenly installed on the tail rotor hub 1. Each blade 4 is fixedly installed on the torque converter 3. A torque converter drive assembly 5 for driving the torque converter 3 to move is installed at the other end of the torque converter 3. In this embodiment, the tail rotor hub 1 is made of aluminum alloy.

[0034] The rotation drive assembly 2 drives the tail rotor hub 1 to rotate, and the tail rotor hub 2 drives the blades 4 on it to rotate. The torque converter drive assembly 5 drives the torque converter 3 to move back and forth, and the torque converter 3 drives the blades 4 to move back and forth. That is, the blades 4 swing back and forth on the tail rotor hub 1. Its operation is as follows: Figure 11 As shown.

[0035] Among them, such as Figure 5 The tail rotor hub 1 shown is a cylindrical tube. The circumferential surface of the tail rotor hub 1 has bearing mounting holes 11, the same number as the number of blades 4. One side of the tail rotor hub 1 has a bottom surface with mounting holes A12. A tail rotor hub end cap 8 is fixedly mounted on the other side of the tail rotor hub 1. Figure 6 As shown, the tail rotor hub 1 and the tail rotor hub end cap 8 are fixed together by screws;

[0036] The rotating driving assembly 2 comprises a motor 21, the output end of the motor 21 is provided with a speed reducer 22, the speed reducer 22 comprises a driving bevel gear mounting shaft 23, the driving bevel gear mounting shaft 23 is provided with a driving bevel gear 24, the driving bevel gear 24 is engaged with a driven bevel gear 26 mounted on a driven bevel gear mounting shaft 25, as shown in Figure 7 ;

[0037] The speed reduction ratio of the speed reducer 22 is 1.1:1;

[0038] The output shaft of the motor 21 is provided with a shaft coupling 27, the other end of the shaft coupling 27 is mounted on the driving bevel gear mounting shaft 23, the other end of the driven bevel gear mounting shaft 25 is mounted in the mounting hole A12 of the tail propeller hub 1;

[0039] The motor 21 rotates, drives the driving bevel gear mounting shaft 23 to rotate through the shaft coupling 27, drives the driven bevel gear 26 to rotate through the driving bevel gear 24 mounted on the driving bevel gear mounting shaft 23, drives the driven bevel gear mounting shaft 25 to rotate through the driven bevel gear 26, drives the tail propeller hub 1 to rotate through the driven bevel gear mounting shaft 25, and drives the propeller blade to rotate through the tail propeller hub 1.

[0040] The variable torque piece 3 is a cylindrical barrel, as shown in Figure 8 The variable torque piece 3 is provided with a plurality of positioning holes 31 on the circumferential surface, the number of the positioning holes 31 is the same as that of the propeller blades 4, and a plurality of fixing holes 32 are arranged on the end face of the variable torque piece 3 close to the tail propeller hub end cover 8; wherein the variable torque pin 7 is mounted in the positioning hole 31.

[0041] The variable torque piece 3 is fixedly provided with a variable torque piece end cover 9 on the side close to the tail propeller hub end cover, the variable torque piece end cover 9 is a disc, and a plurality of mounting holes B91 are arranged on the variable torque piece end cover 9, the number of the mounting holes B91 is the same as that of the fixing holes 32, as shown in Figure 9 The fixing holes 32 and the mounting holes B91 are fixed through bolts.

[0042] The variable torque piece 3 is a cylindrical barrel, as shown in Figure 10 The propeller blade 4 is provided with at least 10, the root of each propeller blade 4 is mounted in the propeller root bearing 6, the propeller root bearing 6 is mounted in the bearing mounting hole 11 in the circumferential direction of the tail propeller hub 1, the root of each propeller blade 4 is provided with a variable torque pin 7, the number of the propeller blades 4 in this embodiment is 11, the propeller blade 4 can be driven to rotate by the tail propeller hub 1, and can also rotate around its own axis in the bearing 6, the propeller blade 4 is a steel plate propeller blade or a carbon fiber propeller blade, the tail propeller diameter is 0.4m, and the tail propeller rotating speed is 120-13r / min.

[0043] The variable torque driving assembly 5 comprises an electric push rod 51, the output end of the electric push rod 51 is fixedly installed on a first fixed block 52, a second fixed block 53 is fixedly installed in front of the first fixed block 52, a variable torque rod mounting hole A 54 is arranged on the second fixed block 53, a variable torque rod 55 is installed in the variable torque rod mounting hole A 54, the variable torque rod 55 is sleeved on the inner side of the driven bevel gear mounting shaft 25, and the other end of the variable torque rod 55 is fixedly installed on the variable torque piece 3.

[0044] The second fixed block 53 and the speed reducer 22 are provided with a variable torque rod supporting disc 10, and the variable torque rod supporting disc 10 is provided with a variable torque rod mounting hole B 56.

[0045] The electric push rod 51 is extended, drives the first fixed block 52 to move forward, the first fixed block 52 drives the second fixed block 53 to move forward, the second fixed block 53 drives the variable torque rod 55 to move forward, the variable torque rod 55 drives the variable torque piece 3 to move forward, and the variable torque piece 3 drives the paddle 4 to move forward on the tail paddle hub 1; the electric push rod 51 is retracted, drives the first fixed block 52 to move backward, the first fixed block 52 drives the second fixed block 53 to move backward, the second fixed block 53 drives the variable torque rod 55 to move backward, the variable torque rod 55 drives the variable torque piece 3 to move backward, and the variable torque piece 3 drives the paddle 4 to move backward on the tail paddle hub 1, that is, the oscillation of the paddle 4 is realized.

[0046] The main and auxiliary drivers step on the footrest control mechanism in the cockpit, the footrest control mechanism transmits a signal to the control computer through a sensor, analog software calculates the variable torque amount of the tail paddle, and then sends a signal to control the variable torque driving assembly 5 to complete the variable torque action.

[0047] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An artificial tail rotor mechanism comprising a tail rotor hub (1), a rotation driving assembly (2) driving the rotation of the tail rotor hub (1), characterized in that: The tail hub (1) is provided with a variable torque device (3) on the inner side, and a plurality of blades (4) are uniformly arranged on the tail hub (1), each blade (4) is fixedly arranged on the variable torque device (3), and the other end of the variable torque device (3) is provided with a variable torque driving assembly (5) for driving the variable torque device (3) to move.

2. An artificial tail rotor mechanism according to claim 1, characterized in that: The tail hub (1) is a cylindrical barrel, the circumferential surface of the tail hub (1) is provided with bearing mounting holes (11) which are same in number as the blades (4), one side of the tail hub (1) is provided with a bottom surface, the bottom surface is provided with a mounting hole (12), and the other side of the tail hub (1) is fixedly provided with a tail hub end cover (8).

3. A simulated tail rotor mechanism according to claim 1 or 2, characterised in that: The rotating driving assembly (2) comprises a motor (21), a speed reducer (22) is arranged on the output end of the motor (21), the speed reducer (22) comprises a driving bevel gear mounting shaft (23), a driving bevel gear (24) is arranged on the driving bevel gear mounting shaft (23), and the driving bevel gear (24) is meshed with a driven bevel gear (26) arranged on a driven bevel gear mounting shaft (25).

4. An artificial tail rotor mechanism according to claim 3, wherein: A shaft coupling (27) is arranged on the output shaft of the motor (21), the other end of the shaft coupling (27) is arranged on the driving bevel gear mounting shaft (23), and the other end of the driven bevel gear mounting shaft (25) is arranged in the mounting hole (12) of the tail hub (1).

5. An artificial tail rotor mechanism according to claim 3, wherein: The variable torque device (3) is a cylindrical barrel, the circumferential surface of the variable torque device (3) is uniformly provided with positioning holes (31) which are same in number as the blades (4), and a plurality of fixing holes (32) are arranged on the end face of the variable torque device (3) close to the tail hub end cover (8).

6. An artificial tail rotor mechanism according to claim 5, wherein: The variable torque device (3) is fixedly provided with a variable torque device end cover (9) on the side close to the tail hub end cover, the variable torque device end cover (9) is a disc, and a plurality of mounting holes (91) which are same in number as the fixing holes (32) are arranged on the disc.

7. An artificial tail rotor mechanism according to claim 6, wherein: The blades (4) are at least 10, the roots of the blades (4) are arranged in the blade root bearings (6), the blade root bearings (6) are arranged in the bearing mounting holes (11) in the circumferential direction of the tail hub (1), and the roots of the blades (4) are eccentrically provided with variable torque pins (7).

8. An artificial tail rotor mechanism according to claim 7, wherein: The variable torque pins (7) are arranged in the positioning holes (31).

9. An artificial tail rotor mechanism according to claim 3, wherein: The variable torque driving assembly (5) comprises an electric push rod (51), the output end of the electric push rod (51) is fixedly arranged on a first fixed block (52), a second fixed block (53) is fixedly arranged in front of the first fixed block (52), a variable torque rod mounting hole A (54) is arranged on the second fixed block (53), a variable torque rod (55) is arranged in the variable torque rod mounting hole A (54), the variable torque rod (55) is arranged on the inner side of the driven bevel gear shaft (25), and the other end of the variable torque rod (55) is fixedly arranged on the variable torque device (3).

10. An artificial tail rotor mechanism according to claim 9, wherein: A variable torque rod supporting disc (10) is arranged between the second fixed block (53) and the speed reducer (22), and a variable torque rod mounting hole B (11) is arranged on the variable torque rod supporting disc (10).

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