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Locking method for connection of cylindrical surfaces

A technology of cylindrical surface and outer cylindrical surface, which is applied in the locking field of the connection between cylindrical surfaces, can solve the problems of increasing product weight, volume and number of parts, achieve the effects of reducing weight and volume, convenient assembly and disassembly, and improving work efficiency

Inactive Publication Date: 2014-04-02
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of fasteners to connect requires additional design of the connection structure, which increases product weight, volume and number of parts while realizing the function of the parts

Method used

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  • Locking method for connection of cylindrical surfaces
  • Locking method for connection of cylindrical surfaces
  • Locking method for connection of cylindrical surfaces

Examples

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Embodiment Construction

[0015] A locking method for connecting cylindrical surfaces, aimed at locking between two cylindrical surfaces inside and outside, using a stainless steel wire with a diameter of 1mm as an example, including the following steps:

[0016] A starting hole 2 with a depth of 3 mm and a diameter of 1.1 mm is machined on the inner cylindrical surface 1;

[0017] Process an inner annular groove 4 with a depth of 0.6mm and a width of 1.2mm at the same height of the outer cylindrical surface 3, and process a locking hole 5 at any position of the inner annular groove 4;

[0018] Bending the stainless steel wire into an S shape, respectively bending the starting end 7 and the ending end 8, as the fuse 6;

[0019] Put the inner cylindrical surface 1 into the outer cylindrical surface 3, insert the starting end 7 of the fuse 6 into the inner cylindrical surface 1 through the starting hole 2, and rotate the outer cylindrical surface 3 in the direction of the fuse 6 until the terminal end 8 ...

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Abstract

The invention belongs to the field of aviation fuel, and particularly relates to a locking method for connection of cylindrical surfaces. The method comprises the following steps of processing a starting hole in an inner cylindrical surface; processing an inner annular groove on an outer cylindrical surface at the same height, and processing a locking hole in any position of the annular groove; sheathing the inner cylindrical surface into the outer cylindrical surface, inserting the starting end of a fuse into the inner cylindrical surface through the starting hole, rotating the outer cylindrical surface in the direction of the fuse until the terminating end of the fuse falls into the locking hole, and completing the locking. The locking method for the connection of the part cylindrical surfaces has the advantage that additional fasteners and connecting structures are not needed, so the weight is reduced and the space is saved, the assembly and disassembly are simple and rapid, and the safety and reliability in use are realized.

Description

technical field [0001] The invention belongs to the field of aviation fuel, and in particular relates to a locking method for connection between cylindrical surfaces. Background technique [0002] At present, the locking connection between the cylindrical surfaces of domestic fuel accessories products generally uses fasteners for connection and locking. The use of fasteners to connect requires additional design of the connection structure, which increases the weight, volume and number of parts of the product while realizing the function of the parts. [0003] Due to the greatly shortened take-off and landing distances of the J-15 aircraft, the weight of the whole machine for take-off and landing is greatly limited, so the weight reduction of the whole machine is particularly important. However, the J-15 aircraft has many fuel accessories, and there are many connections between the cylindrical surfaces of the parts of various products. While realizing the functions of parts ...

Claims

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Application Information

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IPC IPC(8): F16B1/00
Inventor 李爽徐三树刘娟
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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