Decoupling mechanism for yaw control, gear adjustment and brake control of pedal assembly

Abstract

The invention provides a decoupling mechanism for yaw control, gear adjustment and brake control of a pedal assembly, and belongs to the technical field of aircraft cockpit control devices. A fork-shaped rocker arm assembly; a right column assembly; a brake rotating rocker arm; a brake sensor; a brake rocker arm connecting rod assembly; the brake rocker arm connecting rod assembly, the brake sensor and the left stand column assembly / the right stand column assembly form a parallelogram under yaw control, and the left stand column assembly / the right stand column assembly, the brake sensor and the brake rotating rocker arm form a parallelogram under gear adjustment. When the decoupling mechanism carries out yaw control and gear adjustment, the angle of the left pedal and the angle of the right pedal are kept unchanged all the time, the left upper rocker arm and the right upper rocker arm do not rotate or displace, the situation that the left brake sensor and the right brake sensor generate non-instruction displacement signal output is avoided, the decoupling requirement is met, and the safety of an airplane is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of aircraft cockpit control devices, specifically relating to a decoupling mechanism for yaw control, gear adjustment and brake control of a foot pedal assembly. Background Technology

[0002] The pedal assembly controls the aircraft's rudder, gear adjustment, and braking functions. The pedal assembly is crucial to the safety of the aircraft. In order to ensure that the pedal assembly does not cause changes in the pedal angle when yaw control or gear adjustment is performed, and thus does not cause the displacement sensor signal output of the braking system, a new decoupling mechanism for yaw control, gear adjustment, and braking control needs to be designed.

[0003] Currently, the yaw control, gear adjustment, and brake control devices of aircraft foot pedals have the following drawbacks: when the pilot performs yaw control, the angle of the brake pedal changes with the yaw control and gear adjustment. The disadvantage is that the pedal angle changes when the pilot performs yaw control. If the pilot locks the pedal in a certain position with his foot, it will cause the brake sensor to generate an uncommanded displacement output, causing the wheels to brake, which will have a certain impact on the safety of the aircraft. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a decoupling mechanism for yaw control, gear adjustment and brake control of the pedal assembly.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a decoupling mechanism for yaw control, gear adjustment, and brake control of a pedal assembly, the decoupling mechanism comprising: The support assembly includes a left side plate, a right side plate, a base disposed between the left side plate and the right side plate, and a brake support seat located in front of the base; The fork-shaped rocker arm assembly is fixed to the base and used for gear adjustment; The left column assembly is fixed to the fork-shaped rocker arm assembly and is used for left yaw control; The right column assembly is fixed to the fork-shaped rocker arm assembly and is used for right yaw control; The brake rotating rocker arm is fixed to the brake support seat via the brake pivot. The brake sensor is fixed on the brake rotating rocker arm and is used for outputting brake command signals; A brake rocker arm linkage assembly is fixed between the fork-shaped rocker arm assembly and the brake rotating rocker arm; Gear adjustment assembly, mounted on the fork-shaped rocker arm assembly, is used for gear adjustment; The output rocker arm assembly, connected to the left and right column assemblies, is used to output yaw control commands. In yaw control, the brake rocker arm linkage assembly, brake sensor, and left / right column assembly form a parallelogram to decouple yaw control from braking. Under gear adjustment, the left / right pillar assembly, brake sensor, and brake rotary rocker arm form a parallelogram to decouple gear adjustment from braking.

[0006] The decoupling mechanism for yaw control, gear adjustment and brake control of the pedal assembly provided by the present invention also has the following technical features: the fork-shaped rocker arm assembly includes a second fixed shaft connected to the base, a fork-shaped rocker arm connected to the second fixed shaft, and a first fixed shaft connected to the fork-shaped rocker arm. The first fixed shaft is connected to the left column assembly and the right column assembly.

[0007] The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly provided by this invention also has the following technical feature: the left column assembly includes: a left column, a left pivot, a left upper rocker arm, and a left pedal. One end of the left column is connected to the fork-shaped rocker arm assembly, and the other end of the left column is connected to one side of the left rotating shaft. One side of the left rotating shaft is also connected to the upper left rocker arm, and the other side of the left rotating shaft is connected to the left pedal. The upper left rocker arm is connected to the brake sensor.

[0008] The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly provided by this invention also has the following technical feature: the right column assembly includes: a right column, a right pivot, an upper right rocker arm, and a right pedal. One end of the right column is connected to the fork-shaped rocker arm assembly, and the other end of the right column is connected to one side of the right rotating shaft. One side of the right rotating shaft is also connected to the upper right rocker arm, and the other side of the right rotating shaft is connected to the right pedal. The upper right rocker arm is connected to the brake sensor.

[0009] The decoupling mechanism for yaw control, gear adjustment and brake control of the pedal assembly provided by the present invention also has the following technical feature: the brake sensor includes a left brake sensor connected to the left column assembly and a right brake sensor connected to the right column assembly.

[0010] The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly provided by this invention also has the following technical feature: the brake rocker arm linkage assembly includes a brake rocker arm linkage, a first joint bearing, and a second joint bearing. The brake rocker arm linkage is connected to the fork-shaped rocker arm assembly via a first joint bearing. The brake rocker arm connecting rod is connected to the brake rotating rocker arm via a second joint bearing.

[0011] The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly provided by this invention also has the following technical feature: the gear adjustment assembly includes an actuator and a gear adjustment support plate. One end of the actuator is connected to the fork-shaped rocker arm assembly, and the other end of the actuator is fixed to the gear adjustment support plate by bolts. The gear adjustment support plate is fixed between the left side plate and the right side plate.

[0012] The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly provided by this invention also has the following technical feature: the output rocker arm assembly includes an output rocker arm, a displacement sensor, a rotating shaft, and front and rear push-pull rods. One end of the front and rear push-pull rods is connected to the left column assembly and the right column assembly, and the other end of the front and rear push-pull rods is connected to the output rocker arm. One end of the rotating shaft is connected to the displacement sensor, and the other end of the rotating shaft is connected to the output rocker arm.

[0013] Beneficial effects: The decoupling mechanism provided by this invention ensures that the angles of the left and right pedals remain constant during yaw control and gear adjustment, and that the upper left and right rocker arms do not rotate. This prevents the left and right brake sensors from generating non-command displacement signals, thus achieving the decoupling requirements and improving aircraft safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the pedal assembly structure mentioned in the embodiments of the present invention; Figure 2 This is a cross-sectional view of the rotating component and brake rocker arm linkage assembly mentioned in the embodiments of the present invention; Figure 3 This is a cross-sectional view of the fork-shaped rocker arm assembly, the left column assembly, and the right column assembly mentioned in the embodiments of the present invention; Figure 4 This is a cross-sectional view of the brake shaft, brake support seat, and brake rotating rocker arm mentioned in the embodiments of the present invention. The components are as follows: 1. Left pedal; 2. Right pedal; 3. Left pivot; 4. Right pivot; 5. Upper left rocker arm; 6. Upper right rocker arm; 7. Left column; 8. Right column; 9. Left brake sensor; 10. Right brake sensor; 11. Actuator; 12. Gear adjustment support plate; 13. Output rocker arm; 14. Displacement sensor; 15. Brake rocker arm linkage; 16. Brake rotating rocker arm; 17. Front and rear push-pull rods; 18. Rotary shaft; 19. First deep groove. 20. Ball bearing; 21. Second deep groove ball bearing; 22. Third deep groove ball bearing; 23. Fourth deep groove ball bearing; 24. Fifth deep groove ball bearing; 25. Sixth deep groove ball bearing; 26. Seventh deep groove ball bearing; 27. Eighth deep groove ball bearing; 28. First spherical plain bearing; 29. ​​First fixed shaft; 30. Base; 31. Second fixed shaft; 32. Fork-shaped rocker arm; 33. Second spherical plain bearing; 34. Brake shaft; 35. Brake support seat. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0017] In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0018] Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0019] The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of these terms in this invention based on the specific circumstances.

[0020] like Figure 1-4 As shown, this embodiment of the invention provides a decoupling mechanism for yaw control, gear adjustment, and brake control of a pedal assembly. The decoupling mechanism includes: The support assembly includes a left side plate, a right side plate, a base 29 disposed between the left side plate and the right side plate, and a brake support seat 34 located in front of the base 29; A fork-shaped rocker arm assembly, fixed to the base 29, is used for gear adjustment; The left column assembly is fixed to the fork-shaped rocker arm assembly and is used for left yaw control; The right column assembly is fixed to the fork-shaped rocker arm assembly and is used for right yaw control; The brake rotating rocker arm 16 is fixed to the brake support seat 34 via the brake pivot. The brake sensor is fixed on the brake rotating rocker arm and is used for outputting brake command signals; A brake rocker arm linkage assembly is fixed between the fork-shaped rocker arm assembly and the brake rotating rocker arm; Gear adjustment assembly, mounted on the fork-shaped rocker arm assembly, is used for gear adjustment; The output rocker arm assembly, connected to the left and right column assemblies, is used to output yaw control commands. In yaw control, the brake rocker arm linkage assembly, brake sensor, and left / right column assembly form a parallelogram to decouple yaw control from braking. Under gear adjustment, the left / right pillar assembly, brake sensor, and brake rotary rocker arm form a parallelogram to decouple gear adjustment from braking.

[0021] In the above embodiment, since the center distance between the upper left rocker arm 5, the left column 7, the left brake sensor 9, the brake rotating rocker arm 16, and the second fixed shaft 30 and the brake rotating shaft 33 forms a parallelogram, the angle of the left pedal 1 remains unchanged during gear adjustment, and the upper left rocker arm 1 has no rotational displacement, which will not cause the left brake sensor 9 to generate a non-command displacement signal output; yaw control and gear adjustment will not cause the brake sensor to generate a non-command displacement output, thus achieving decoupling and improving aircraft safety.

[0022] In some embodiments, the fork-shaped rocker arm assembly includes a second fixed shaft 30 connected to the base 29, a fork-shaped rocker arm 31 connected to the second fixed shaft 30, and a first fixed shaft 28 connected to the fork-shaped rocker arm 31. The first fixed shaft 28 is connected to the left column assembly and the right column assembly.

[0023] In some embodiments, the left column assembly includes: a left column 7, a left pivot 3, a left upper rocker arm 5, and a left pedal 1. One end of the left column 7 is connected to the fork-shaped rocker arm assembly, and the other end of the left column 7 is connected to one side of the left rotating shaft 3. One side of the left rotating shaft 3 is also connected to the upper left rocker arm 5, and the other side of the left rotating shaft 3 is connected to the left pedal 1. The upper left rocker arm 5 is connected to the brake sensor.

[0024] In some embodiments, the left column 7 hole is provided with a third deep groove ball bearing 21, a fourth deep groove ball bearing 22, a seventh deep groove ball bearing 25 and an eighth deep groove ball bearing 26. The left rotating shaft 3 passes through the left upper rocker arm 5 and the left pedal 1 hole. The left rotating shaft 3 is connected to the left upper rocker arm 5 by bolts, and the left rotating shaft 3 is connected to the left pedal 1 by bolts.

[0025] In some embodiments, the right column assembly includes: a right column 8, a right rotating shaft 4, a right upper rocker arm 6, and a right pedal 2. One end of the right column 8 is connected to the fork-shaped rocker arm assembly, and the other end of the right column 8 is connected to one side of the right rotating shaft 4. One side of the right rotating shaft 4 is also connected to the upper right rocker arm 6, and the other side of the right rotating shaft 4 is connected to the right pedal 2. The upper right rocker arm 6 is connected to the brake sensor.

[0026] In some embodiments, the right column 8 hole is provided with a first deep groove ball bearing 19, a second deep groove ball bearing 20, a fifth deep groove ball bearing 23 and a sixth deep groove ball bearing 24. The right rotating shaft 4 passes through the right upper rocker arm 6 and the right pedal 2 hole. The right rotating shaft 4 is connected to the right upper rocker arm 8 by bolts, and the right rotating shaft 4 is connected to the right pedal 2 by bolts.

[0027] In some embodiments, the brake sensor includes a left brake sensor 9 connected to the left pillar assembly and a right brake sensor 10 connected to the right pillar assembly.

[0028] In some embodiments, the brake rocker arm linkage assembly includes a brake rocker arm linkage 15, a first joint bearing 27, and a second joint bearing 32. The brake rocker arm connecting rod 15 is connected to the fork-shaped rocker arm assembly via a first joint bearing 27. The brake rocker arm connecting rod 15 and the brake rotating rocker arm 16 are connected by a second joint bearing 32.

[0029] In some embodiments, the gear adjustment assembly includes an actuator 11 and a gear adjustment support plate 12. One end of the actuator 11 is connected to the fork-shaped rocker arm assembly, and the other end of the actuator 11 is fixed to the gear adjustment support plate 12 by bolts. The gear adjustment support plate 12 is fixed between the left side plate and the right side plate.

[0030] In some embodiments, the output rocker arm assembly includes an output rocker arm 13, a displacement sensor 14, a rotation shaft 18, and front and rear push-pull rods 17. One end of the front and rear push-pull rod 17 is connected to the left column assembly and the right column assembly, and the other end of the front and rear push-pull rod 17 is connected to the output rocker arm 13. One end of the rotating shaft 18 is connected to the displacement sensor 14, and the other end of the rotating shaft 18 is connected to the output rocker arm 13.

[0031] The working principle of the decoupling mechanism provided in any of the foregoing embodiments is as follows: When the foot pedal assembly is used for yaw control, the left pedal 1 is operated, which drives the left rotating shaft 3, the upper left rocker arm 5 and the left column 7 to rotate around the first fixed axis 28. Through the front and rear push-pull rods 17, the rotating shaft 18 and the output rocker arm 13 swing left and right, thereby driving the displacement sensor 14 to generate a displacement command signal, converting the pilot's mechanical command into an electrical signal and outputting it to the flight control computer. When adjusting the gear: the actuator 11 drives the fork-shaped rocker arm 31 and the first fixed shaft 28 to rotate, which in turn drives the left column 7, the seventh deep groove ball bearing 25, the eighth deep groove ball bearing 26, the third deep groove ball bearing 21, the fourth deep groove ball bearing 22, the left rotating shaft 3, the upper left rocker arm 5, and the left pedal 1. At the same time, it drives the right column 8, the fifth deep groove ball bearing 23, the sixth deep groove ball bearing 24, the first deep groove ball bearing 19, the second deep groove ball bearing 20, the right rotating shaft 4, the upper right rocker arm 6, and the right pedal 2 to rotate back and forth around the second fixed shaft 30, so that the different gears of the foot pedal assembly meet the height requirements of the pilot.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A decoupling mechanism for yaw control, gear adjustment, and brake control of a pedal assembly, characterized in that, The decoupling mechanism includes: The support assembly includes a left side plate, a right side plate, a base disposed between the left side plate and the right side plate, and a brake support seat located in front of the base; The fork-shaped rocker arm assembly is fixed to the base and used for gear adjustment; The left column assembly is fixed to the fork-shaped rocker arm assembly and is used for left yaw control; The right column assembly is fixed to the fork-shaped rocker arm assembly and is used for right yaw control; The brake rotating rocker arm is fixed to the brake support seat via the brake pivot. The brake sensor is fixed on the brake rotating rocker arm and is used for outputting brake command signals; A brake rocker arm linkage assembly is fixed between the fork-shaped rocker arm assembly and the brake rotating rocker arm; Gear adjustment assembly, mounted on the fork-shaped rocker arm assembly, is used for gear adjustment; The output rocker arm assembly, connected to the left and right column assemblies, is used to output yaw control commands. In yaw control, the brake rocker arm linkage assembly, brake sensor, and left / right column assembly form a parallelogram to decouple yaw control from braking. Under gear adjustment, the left / right pillar assembly, brake sensor, and brake rotary rocker arm form a parallelogram to decouple gear adjustment from braking.

2. The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly according to claim 1, characterized in that, The fork-shaped rocker arm assembly includes a second fixed shaft connected to the base, a fork-shaped rocker arm connected to the second fixed shaft, and a first fixed shaft connected to the fork-shaped rocker arm. The first fixed shaft is connected to the left column assembly and the right column assembly.

3. The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly according to claim 1, characterized in that, The left column assembly includes: a left column, a left pivot, a left upper rocker arm, and a left pedal. One end of the left column is connected to the fork-shaped rocker arm assembly, and the other end of the left column is connected to one side of the left rotating shaft. One side of the left rotating shaft is also connected to the upper left rocker arm, and the other side of the left rotating shaft is connected to the left pedal. The upper left rocker arm is connected to the brake sensor.

4. The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly according to claim 1, characterized in that, The right column assembly includes: a right column, a right pivot, a right upper rocker arm, and a right pedal. One end of the right column is connected to the fork-shaped rocker arm assembly, and the other end of the right column is connected to one side of the right rotating shaft. One side of the right rotating shaft is also connected to the upper right rocker arm, and the other side of the right rotating shaft is connected to the right pedal. The upper right rocker arm is connected to the brake sensor.

5. The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly according to claim 1, characterized in that, The brake sensors include a left brake sensor connected to the left pillar assembly and a right brake sensor connected to the right pillar assembly.

6. The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly according to claim 1, characterized in that, The brake rocker arm linkage assembly includes a brake rocker arm linkage, a first joint bearing, and a second joint bearing. The brake rocker arm linkage is connected to the fork-shaped rocker arm assembly via a first joint bearing. The brake rocker arm connecting rod is connected to the brake rotating rocker arm via a second joint bearing.

7. The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly according to claim 1, characterized in that, The gear adjustment assembly includes an actuator and a gear adjustment support plate. One end of the actuator is connected to the fork-shaped rocker arm assembly, and the other end of the actuator is fixed to the gear adjustment support plate by bolts. The gear adjustment support plate is fixed between the left side plate and the right side plate.

8. The decoupling mechanism for yaw control, gear adjustment, and brake control of the pedal assembly according to claim 1, characterized in that, The output rocker arm assembly includes an output rocker arm, a displacement sensor, a rotating shaft, and front and rear push-pull rods. One end of the front and rear push-pull rods is connected to the left column assembly and the right column assembly, and the other end of the front and rear push-pull rods is connected to the output rocker arm. One end of the rotating shaft is connected to the displacement sensor, and the other end of the rotating shaft is connected to the output rocker arm.

Images