A leading edge slat with adjustable attitude

A leading-edge slat and attitude technology, which is applied to aircraft parts, aircraft control, transportation and packaging, etc., can solve the problems that the gap between the slat and the fixed leading edge cannot be met, and the zero position of the control system changes, so as to reduce the gap control Difficulty, ensuring aerodynamic clearance requirements, and the effect of meeting interchangeability requirements

Active Publication Date: 2016-06-22
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology

By disconnecting the control system wires and manually adjusting the zero position of the control system at each connection point of the slat, the slat attitude can be fine-tuned, but the change of the zero position of the control system is not desired by the design, and this adjustment is only Can be rotated and fine-tuned, but cannot meet the clearance requirements between the slat and the fixed leading edge

Method used

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  • A leading edge slat with adjustable attitude
  • A leading edge slat with adjustable attitude
  • A leading edge slat with adjustable attitude

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Embodiment Construction

[0016] Please also see figure 1 with figure 2 , the attitude-adjustable leading edge slat of the present invention includes a reinforcing rib 1 , a sliding rail 2 , and a double eccentric bushing 3 . Wherein, the reinforcing rib 1 is fixedly connected with the double holes of the slide rail 2 through the connecting lugs, and two sets of double eccentric bushings 3 are arranged in the outer connecting holes between the reinforcing rib 1 and the slide rail 2 respectively, and are fixed by bolts 4 .

[0017] Between the rib 1 and the slide rail 2, there are two sets of corresponding small holes for fixing the bush pick 5 and limiting the adjustment of the slat. The inner diameter of the small hole is 4-6 mm, and the rib 1 and the slide rail The inner diameter of the inner hole between 2 is at least 0.3 mm larger than the size of the outer hole, so as to limit the adjustment amount of the slat and facilitate installation.

[0018] The large holes and small holes on the connecti...

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Abstract

The invention belongs to the design technology of aircraft movable surfaces, in particular to a leading edge slat with adjustable attitude. The attitude-adjustable leading edge slat includes a reinforcing rib (1), a slide rail (2), and a double eccentric bushing (3), wherein the reinforcing rib (1) passes through two holes connecting the lug and the slide rail (2). For fixed connection, two sets of double eccentric bushings (3) are respectively arranged in the outer connecting holes between the reinforcing rib (1) and the slide rail (2), and fixed by stud bolts (4). The leading edge slat with adjustable attitude of the present invention can adjust the attitude after the slat is installed, so as to ensure the aerodynamic gap requirements between the movable surface and the fixed surface, meet the interchangeability requirements, and ensure the zero position of the operating system. In addition, the attitude-adjustable leading-edge slat has a simple structure and is easy to adjust, which greatly reduces the difficulty of clearance control.

Description

technical field [0001] The invention belongs to the design technology of aircraft movable surfaces, in particular to a leading edge slat with adjustable attitude. Background technique [0002] There are many forms of leading edge slats, mainly divided into fixed slats and forward-extending slats. Fixed slats are generally installed on small aircraft, and forward-extending slats are generally used on large aircraft. The forward-extending slats are suspended by slide rails on a pulley frame that fixes the leading edge. Since the forward-extending slats are installed with the slats and slide rails first, and then installed to the fixed leading edge as a whole, its attitude can only be checked at this time. By disconnecting the control system wires and manually adjusting the zero position of the control system at each connection point of the slat, the slat attitude can be fine-tuned, but the change of the zero position of the control system is not desired by the design, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C9/22
Inventor 刘世丽冯变变章祖华
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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