Aircraft stopping brake mechanism

Abstract

The invention belongs to the field of airplane braking, and particularly relates to a foot-operated airplane stopping braking mechanism. Comprising an adjusting handle, a baffle, a pull rod, a support, a connecting pull rod, a support, a brake limiting block, a brake limiting clamping groove, a connecting plate, a pedal plate, a brake rocker arm, a tubular shaft and a connecting rocker arm, the adjusting handle is connected with one end of the pull rod, and a sleeve is arranged at the connecting position of the adjusting handle and the pull rod and fixed to the baffle; one end of the connecting pull rod is hinged with the other end of the rocker arm; the other end of the connecting pull rod is hinged with the support; one end of the connecting rod is fixed with the other end; the brake limiting block is fixed on the pull rod; the pedal plate is connected with one end of the brake rocker arm, the other end of the brake rocker arm is connected with one end of the connecting plate, and the other end of the connecting plate is provided with a brake limiting clamping groove used for being connected with the brake limiting block in a matched mode. One end of the connecting rocker arm is connected with the other end of the brake rocker arm and one end of the connecting plate.

Description

Technical Field

[0001] The invention belongs to the field of aircraft brakes, and in particular relates to a foot-operated aircraft parking brake mechanism. Background Art

[0002] The foot control device provides the pilot with heading control input. The pedals are used to control the rudder, main wheel brakes and front wheel turning. When the rudder is turned left or right, the left / right pedal shaft is pressed respectively to drive the line system to drive the rudder surface. When the main wheel is braked, the foot pedal is pressed with the toe, and the foot pedal rotates around the pedal shaft to drive the brake rocker arm to transmit the movement to the brake roller. The hydraulic brake valve is compressed by the up and down movement of the brake roller to achieve the purpose of braking.

[0003] The current foot-operated brake mechanism for aircraft has the disadvantages of complex design, heavy weight, and cumbersome debugging and installation. When braking, after stepping on the pedal brake, pull out the brake handle, then release the pedal and put down the brake handle. At this time, the screw contacts the bottom surface of the pin and is stuck in the pin slot to complete the braking. Due to the large number of braking links, it is not easy to coordinate and adjust each link properly, resulting in poor coordination between the brake stroke and the brake pressure installation, easy pressure drop, and poor ground parking brake effect of the aircraft. The height difference between the front and rear extreme positions of the pedal is nearly 110mm, which makes the driver uncomfortable to operate and the human-machine efficiency is poor. Summary of the invention

[0004] Purpose of the invention: To provide an aircraft parking brake mechanism to solve the problems of complex design, cumbersome adjustment and poor ergonomics in existing aircraft parking brake mechanisms.

[0005] Technical solution:

[0006] An aircraft parking brake mechanism includes: an adjustment handle 1, a baffle 2, a pull rod 3, a bracket 4, a connecting pull rod 5, a support 6, a brake limit block 8, a brake limit slot 9, a connecting plate 10, a pedal plate 11, a brake rocker arm 12, a pipe shaft 13, and a connecting rocker arm 14, wherein:

[0007] The adjusting handle 1 is connected to one end of the pull rod 3, a sleeve is provided at the connection between the adjusting handle 1 and the pull rod 3, the sleeve is fixed to the baffle 2, a rocker arm is provided on the bracket 4, the other end of the pull rod 3 is hinged to one end of the rocker arm, one end of the connecting rod 5 is hinged to the other end of the rocker arm; the other end of the connecting rod 5 is hinged to one end of the support 6; one end of the connecting rod is fixed to the other end of the support 6; the brake limit block 8 is fixed on the pull rod;

[0008] The pedal plate 11 is connected to one end of the brake rocker arm 12, and the other end of the brake rocker arm 12 is connected to one end of the connecting plate 10. The other end of the connecting plate 10 is provided with a brake limit slot 9 for matching and connecting with the brake limit block 8;

[0009] The pipe shaft 13 is fixed on the body floor, and one end of the connecting rocker arm 14 is connected to the other end of the brake rocker arm 12 and one end of the connecting plate 10 .

[0010] Furthermore, it also includes a brake rocker arm baffle 7, which is fixed on the pull rod.

[0011] Furthermore, a triangular rocker arm is provided on the bracket 4 .

[0012] Furthermore, a spring is sleeved on the pull rod 3 .

[0013] Furthermore, the connecting rocker arm 14 is a V-shaped rocker arm.

[0014] Furthermore, one end of the support 6 is provided with a circular through hole for fixing with one end of the pull rod, and the other end is provided with two ears for hinged connection with the other end of the connecting pull rod 5 .

[0015] Furthermore, a circular through hole is provided at one end of the support 6 and is fixed to one end of the pull rod by a pin.

[0016] Furthermore, the cross section of the brake limit slot 9 is an arc, and the arc on the non-connection side is higher than the arc on the connection side.

[0017] Beneficial effects:

[0018] The aircraft parking brake mechanism of the present invention has the advantages of small space occupation, light parts weight, simple mechanism debugging and installation, and integrated protection measures; the mechanism overcomes the problem of low brake pressure and easy pressure drop during the parking brake process, and completely solves the problem of too low brake pressure when the aircraft is parked on the ground, achieving a safer and more reliable effect of ground parking of the aircraft and reducing accidents; the position of the footrest adopts stepless adjustment (the patent that has been disclosed is stepless adjustment), which increases the comfort of pedaling and solves the problem of poor ergonomics of the foot control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the rod connection of the aircraft parking brake mechanism.

[0020] Figure 2 It is a schematic diagram of an aircraft parking brake mechanism; DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the implementation of this application will be described in more detail in combination with the drawings in the implementation of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and cannot be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in combination with the drawings.

[0022] In the description of the present invention, it is necessary to understand that the terms "center", "axial", "vertical", "up", "down", "upper end", "bottom end", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0023] like Figure 1 and Figure 2 As shown, an aircraft parking brake mechanism includes: an adjustment handle 1, a baffle 2, a pull rod 3, a bracket 4, a connecting pull rod 5, a support 6, a brake limit block 8, a brake limit slot 9, a connecting plate 10, a pedal plate 11, a brake rocker arm 12, a pipe shaft 13, and a connecting rocker arm 14.

[0024] The adjusting handle 1 is connected to one end of the pull rod 3, and a sleeve is provided at the connection between the adjusting handle 1 and the pull rod 3, and the sleeve is fixed to the baffle 2. A rocker arm is provided on the bracket 4, and the other end of the pull rod 3 is hinged to one end of the rocker arm, and one end of the connecting rod 5 is hinged to the other end of the rocker arm; the other end of the connecting rod 5 is hinged to one end of the support 6; one end of the connecting rod is fixed to the other end of the support 6; the brake limit block 8 is fixed on the pull rod; the foot pedal 11 is connected to one end of the brake rocker arm 12, and the other end of the brake rocker arm 12 is connected to one end of the connecting plate 10, and the other end of the connecting plate 10 is provided with a brake limit slot 9 for cooperating with the brake limit block 8; the pipe shaft 13 is fixed to the body floor, and one end of the connecting rocker arm 14 is connected to the other end of the brake rocker arm 12 and one end of the connecting plate 10.

[0025] In a possible embodiment, a brake rocker arm baffle 7 is further included, and the brake rocker arm baffle 7 is fixed on the pull rod.

[0026] In a possible embodiment, a triangular rocker arm is provided on the bracket 4 .

[0027] In a possible embodiment, the pull rod 3 is also covered with a spring.

[0028] In a possible embodiment, the connecting rocker arm 14 is a V-shaped rocker arm.

[0029] In a possible embodiment, one end of the support 6 is provided with a circular through hole for fixing with one end of the pull rod, and the other end is provided with two ears for hinged connection with the other end of the connecting pull rod 5 .

[0030] In a possible embodiment, a circular through hole is provided at one end of the support 6 and is fixed to one end of the pull rod by a pin.

[0031] In a possible embodiment, the cross section of the brake limit slot 9 is an arc, and the arc on the non-connection side is higher than the arc on the connection side.

[0032] When using the parking brake, the pilot first steps on the left pilot's foot pedal to the bottom, then lifts the parking brake handle, and then releases the foot pedal. When releasing, just step on the left pilot's foot pedal hard, the parking brake handle automatically rebounds, and then release the foot pedal. The rudder can be manipulated by pushing the foot pedal to drive the foot pedal frame to move. The brake valve and its control handle and control mechanism are installed on the left side of the left pilot's console. The brake valve can be operated by stepping on the foot pedal with the toes to move the foot pedal along its own rotation axis. When using the parking brake, step on the foot pedal with the toes to move the foot pedal along its own rotation axis to the bottom and pull out the brake handle backwards, and then release the foot pedal to keep the wheels of the landing gear in the braking state. When releasing the parking brake, step on the foot pedal with the toes to deflect the foot pedal, the parking brake handle automatically rebounds, and then release the foot pedal to release the parking brake. The rudder can be manipulated by pushing the foot pedal to drive the foot pedal frame to move.

[0033] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An aircraft parking brake mechanism, characterized in that: include: An adjusting handle (1), a baffle (2), a pull rod (3), a bracket (4), a connecting pull rod (5), a support (6), a brake limit block (8), a brake limit slot (9), a connecting plate (10), a pedal plate (11), a brake rocker arm (12), a pipe shaft (13), and a connecting rocker arm (14), wherein: The adjusting handle (1) is connected to one end of the pull rod (3); a sleeve is provided at the connection between the adjusting handle (1) and the pull rod (3); the sleeve is fixed to the baffle (2); a rocker arm is provided on the bracket (4); the other end of the pull rod (3) is hinged to one end of the rocker arm; one end of the connecting rod (5) is hinged to the other end of the rocker arm; the other end of the connecting rod (5) is hinged to one end of the support (6); one end of the connecting rod is fixed to the other end of the support (6); and a brake limit block (8) is fixed on the pull rod; The pedal plate (11) is connected to one end of the brake rocker arm (12), the other end of the brake rocker arm (12) is connected to one end of the connecting plate (10), and the other end of the connecting plate (10) is provided with a brake limit slot (9) for matching and connecting with the brake limit block (8); The pipe shaft (13) is fixed on the floor of the machine body, and one end of the connecting rocker arm (14) is connected with the other end of the brake rocker arm (12) and one end of the connecting plate (10).

2. The aircraft parking brake mechanism according to claim 1, characterized in that: It also includes a brake rocker arm baffle (7), which is fixed on the pull rod.

3. The aircraft parking brake mechanism according to claim 1, characterized in that: A triangular rocker arm is arranged on the bracket (4).

4. The aircraft parking brake mechanism according to claim 1, characterized in that: The pull rod (3) is also sleeved with a spring.

5. The aircraft parking brake mechanism according to claim 1, characterized in that: The connecting rocker arm (14) is a V-shaped rocker arm.

6. The aircraft parking brake mechanism according to claim 1, characterized in that: One end of the support (6) is provided with a circular through hole for fixing with one end of the pull rod, and the other end is provided with two ears for hinged connection with the other end of the connecting pull rod (5).

7. The aircraft parking brake mechanism according to claim 1, characterized in that: One end of the support (6) is provided with a circular through hole and is fixed to one end of the pull rod via a pin.

8. The aircraft parking brake mechanism according to claim 1, characterized in that: The cross section of the brake limit slot (9) is an arc, and the arc on the non-connection side is higher than the arc on the connection side.

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