A tool for measuring the clearance of the lead screw assembly of an aircraft adjustable deflation valve

A technology of deflation valve and measuring tooling, which is applied in the direction of mechanical clearance measurement, etc., which can solve the problems of difficult effective measurement of ordinary tools and equipment, limited measurement operation space, high precision requirements, etc., and achieve simple and convenient repair and maintenance, effective centering and clamping , the effect of accurate gap measurement accuracy

Active Publication Date: 2021-02-05
GUANGZHOU AIRCRAFT MAINTENANCE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high clearance precision requirements of the lead screw assembly and the limited space for measurement operations, it is difficult to measure, so it is difficult for ordinary tools and equipment to achieve effective measurement

Method used

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  • A tool for measuring the clearance of the lead screw assembly of an aircraft adjustable deflation valve
  • A tool for measuring the clearance of the lead screw assembly of an aircraft adjustable deflation valve
  • A tool for measuring the clearance of the lead screw assembly of an aircraft adjustable deflation valve

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Embodiment Construction

[0064] see figure 1 combine figure 2, the embodiment of the gap measurement tooling of the aircraft adjustable deflation valve screw assembly of the present invention, the screw assembly is composed of a ball screw 1 and a ball nut 2, and the ball nut 2 is axially symmetrically provided with a protruding installation short axis.

[0065] Tooling includes the following components:

[0066] A base 3, with left and right protrusions, coaxial threaded holes are opened in the middle of the left and right protrusions, and left and right locking bolts 6 are provided. There are front and rear transverse holes and vertical square holes intersecting in the middle of the front and rear transverse holes, and a hexagonal torsion shaft 9 is provided with a bearing support in the front and rear transverse holes;

[0067] A turning beam 4 with a square cross section, with front and rear hexagonal holes in the lower part to match the hexagonal torsion shaft 9, and vertical holes in the upp...

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Abstract

The invention discloses a clearance measuring tool for a screw assembly of an aircraft adjustable deflation valve, comprising: a base (3) with left and right protrusions, coaxial threaded holes are opened in the middle of the left and right protrusions, and left and right locking bolts are arranged in the middle. (6); The middle of the base (3) is provided with front and rear horizontal holes and vertical holes, and the two intersect, and the front and rear horizontal holes are equipped with bearings to support a hexagonal torsion shaft (9); a torsion arm, the lower part is provided with front and rear hexagonal holes In cooperation with the hexagonal torsion shaft (9), the top is provided with four forks that are symmetrical in front and rear, left and right and upward; Front and rear hex holes on the bottom of the arm. This tooling can easily complete the clearance measurement of various types and sizes of screw assemblies, achieve effective centering and clamping, ensure accurate and reliable clearance measurement accuracy of screw assemblies, simple operation, and easy to use; the quality of the device itself is solid, durable, and can be freely Easy to disassemble, upgrade and refit, repair and maintain.

Description

technical field [0001] The invention relates to a tool for measuring the gap of a lead screw assembly, in particular to a tool for measuring the gap of a lead screw assembly of an aircraft adjustable deflation valve. Background technique [0002] Aircraft adjustable bleed valve is the core component of anti-surge of aircraft engine. Aircraft engine exhausts air by adjusting the opening of adjustable bleed valve to prevent engine bleed surge. The action of the adjustable bleed valve is controlled by the transmission of the screw assembly, which is the core component of the bleed valve and the key to the engine anti-puffing system. [0003] As a relatively reliable transmission part, the lead screw assembly mainly plays the role of bearing force, force transmission, and converting rotary motion into linear motion. As the most important characteristic index, the fit clearance of the lead screw assembly directly determines the transmission efficiency and working reliability of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/14
CPCG01B5/14
Inventor 李秉正徐晓亭甘展界薛巍资雯钟国声
Owner GUANGZHOU AIRCRAFT MAINTENANCE ENG
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