A three-redundancy all-electric brake actuation system

An actuation system and three-redundancy technology, applied in the field of aircraft parking, can solve the problems of reduced braking efficiency, uneven loading of brake discs, limited loading surface area, etc., and achieve the effect of improving reliability indicators

CN109305339BActive Publication Date: 2021-02-05BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-02-05

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Abstract

A three-redundancy all-electric brake actuation system, which relates to the technical field of aircraft parking; includes three actuators, an actuation bracket, a brake disc assembly and a wheel; wherein, the wheel is a vertical cylindrical structure; The brake disc assembly is fixedly installed on the axial top of the wheel; the actuating bracket is a disc structure; the actuating bracket is placed horizontally and coaxially on the upper surface of the brake disc assembly; three actuators are fixedly installed on the upper surface of the actuating bracket ;The 3 actuators are evenly distributed in a ring with the axis of the actuating bracket as the center; the distance between the center of the actuator and the axis of the actuating bracket is 83‑87mm; the two adjacent actuators take the axis of the actuating bracket as the center of the circle The included angle is 120°; the present invention realizes a small-sized, light-weight and highly reliable braking solution for all-electric aircraft / heavy-duty trucks.
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Description

technical field

[0001] The invention relates to the technical field of aircraft parking, in particular to a three-redundancy all-electric brake actuation system. Background technique

[0002] The braking system is one of the important subsystems of the aircraft. It is used to complete the safe parking of the aircraft. Its reliability plays an extremely important role in the take-off and landing of the aircraft. The quality of the braking performance directly affects the flight of the aircraft and the crew on board. Safety. The traditional aircraft braking system usually uses a hydraulic device, which requires high sealing of the system, there is a risk of leakage, and the maintainability is poor. The all-electric braking system came into being along with the development of multi- / all-electric aircraft. Compared with the traditional hydraulic brake system, the all-electric brake system has the advantages of small size, light weight, high safety and good dynamic performance....

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0035] The present invention provides a three-redundant all-electric brake actuation system. The motor 23 extends out of the shaft 16 through the motor, and the rotational motion of the motor 23 is transmitted to the lead screw nut 18 through a set of gears, and the rotating motion of the motor 23 is transmitted through the ball screw 19. Motion is converted to linear motion. The motor 23 and the resolver 22 are connected to an external drive controller and power supply through the motor electrical connector 14 . When the lead screw 19 moves forward in a straight line and presses the brake disc assembly 3, the reaction force of the brake disc assembly 3 is transmitted to the thrust bearing and the pressure sensor 21 through the guide mechanism, and the pressure sensor 21 converts the elastic deformation into an electrical signal and transmits it...