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Empennage rudder bearing seat connecting structure

A technology for connecting structures and bearing seats, which is applied in aircraft parts, aircraft control, transportation and packaging, etc., can solve problems such as inability to meet and cannot be guaranteed, and achieve the effect of improving bearing capacity and structural reliability.

Active Publication Date: 2017-10-20
SHAANXI AIRCRAFT CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for rudders with large rudder surfaces, the transmission of vertical loads by means of thrust bearings or suspension arms cannot be guaranteed, and cannot meet the requirements of Part 25 of the "China Civil Airworthiness Regulations"

Method used

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  • Empennage rudder bearing seat connecting structure

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0015] The present invention is a connecting structure of tail rudder bearing housing, which is installed between the rudder and the dorsal fin platform of the rear fuselage, and mainly consists of torque tube 1, bearing sleeve 2, bearing cover 3, bearing housing 4, thrust bearing 5 and dustproof cloth 6. The stop pin 7, the adjustable washer 8, and the rubber pad 9 are combined.

[0016] The torque tube is a Π-shaped through-hole structure. The upper flange and the lower rib of the rudder are connected by tension-shear bolts. The lower end is designed with standard aviation fine-pitch external threads. After screwing with the bearing 2 threads, a rectangular opening is combined on both sides. This opening Designed for the mounting of the rudder operating tube shaft hinge bolts. After the installation of the operating mechanism in the final assembly stage, the torque...

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PUM

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Abstract

The invention relates to an empennage rudder, in particular to an empennage rudder bearing seat connecting structure. The connecting structure comprises a torque tube (1), a bearing sleeve (2), a bearing cover (3), a bearing seat (4) and an antithrust bearing (5). The bearing seat (4) is fixed to an aircraft body, the bearing seat (4) is of a through hole structure with the inner end face provided with steps, and the antithrust bearing (5) is located in the bearing seat (4). The bearing sleeve (2) is mounted on the inner circle of the antithrust bearing (5), the torque tube (1) is located on the upper end face of the inner circle of the antithrust bearing (5), and the torque tube (1) and the bearing sleeve (2) are fixed together. The bearing cover (3) is fixed to the bearing seat (4). According to the empennage rudder bearing seat connecting structure, the problem of vertical load transmitting of a large-rudder-face rudder is solved, and the force bearing capacity and the structural reliability of the rudder are improved.

Description

technical field [0001] The invention relates to an empennage rudder, in particular to a connecting structure of an empennage rudder bearing seat. Background technique [0002] Domestic aircraft rudders are relatively small and light in weight, and the vertical load of the rudder is mainly transmitted through a thrust bearing or suspension arm. However, for rudders with large rudder surfaces, the transmission of vertical loads by thrust bearings or suspension arms cannot be guaranteed, and cannot meet the relevant provisions of Part 25 of the "China Civil Airworthiness Regulations". Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a large-load empennage rudder bearing block connection structure. [0004] The technical solution of the present invention is: the connection structure includes a torque tube 1, a bearing sleeve 2, a bearing cover 3, a bearing seat 4 and a thrust bearing 5, the bearing seat 4 is fixed on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C9/02
CPCB64C9/02
Inventor 常鑫荣严培霞梁芳明赵占军任永胜何晓春宋金牟明川杨兴叶李敏敏李锐张建波谭小辉黄小庆
Owner SHAANXI AIRCRAFT CORPORATION