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Eccentric self-locking anchor nut

A pallet nut and self-locking technology, applied in the direction of nuts, threaded fasteners, connecting components, etc., can solve the problems such as the decline of the locking ability of ordinary oval self-locking pallet nuts, and achieve good locking performance and repeated use. The effect of good sex and small size

Inactive Publication Date: 2018-06-29
AECC SICHUAN GAS TURBINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: the purpose of the invention is to solve the problem that the locking ability of the ordinary elliptical mouth self-locking bracket nut decreases with the increase in the number of assembly and disassembly

Method used

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  • Eccentric self-locking anchor nut
  • Eccentric self-locking anchor nut
  • Eccentric self-locking anchor nut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] See attached Figure 1-3 , what the present invention creates and designs is a kind of eccentric self-locking pallet nut, and nut and stud (bolt) will combine design and just can reach the purpose of eccentric locking. The structure of the bracket nut and stud is as follows: figure 1 shown.

[0014] The structure of the present invention is composed of a supporting plate nut 1 and a stud 2, and the locking structure is an eccentric taper hole 5 at the end of the nut and an eccentric taper head 10 at the end of the stud. After the nut and the stud are screwed together, the centerline 7 coincides with the centerline 12, and the surface of the tapered hole 5 and the surface of the tapered head 10 fit together just right. If you want to loosen the nut and the stud, since the center of rotation is the center line 6 (or 11), the center line 7 will be separated from the center line 12, which will cause the mutual interference between the taper hole 5 and the taper head 10, h...

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Abstract

The invention belongs to the aero-engine structural design, and particularly relates to the design of a connector of the installation edges of a wheel plate and a drum. An eccentric self-locking anchor nut is composed of an anchor nut body 1 and a stud 2. One end of the anchor nut body is provided with an eccentric conical hole 5, and the other end of the anchor nut body is provided with a supporting lug 3. An eccentric conical head 10 is arranged at the connecting end of the stud and the nut body. The axis of the anchor nut body and the axis of the eccentric conical hole 5 do not coincide. The axis of the stud and the axis of the eccentric conical head 10 do not coincide. The self-locking nut has the advantages of being good in locking performance, high in repeatability and small in sizeand having an axial positioning function on the stud; the nut is suitable for meeting the design requirements of the anchor nut; the problems of a traditional anchor nut are solved that locking performance is decreased after multiple times of assembling and disassembling, the axial position of a stud needs to be measured and controlled through a caliper rule, and the stud needs to be circumferentially fixed when a nut on the other side is screwed down.

Description

technical field [0001] The invention belongs to the structural design of an aero-engine, and in particular relates to the design of a wheel disk and a drum installation side connector. Background technique [0002] In the design of the engine structure, a large number of bolts are used to connect various parts, but some parts have a small space, and it is difficult to use ordinary structure bolts and nuts for connection. The backing nut is a special structure to solve the above problems, but the current self-locking structure of the backing nut is the same as that of the ordinary self-locking nut (elliptical mouth self-locking), and its defect is that the locking ability increases significantly with the increase in the number of assembly and disassembly decline. Since the supporting plate nut and the mounting edge are assembled into one body, cutting and destroying must be adopted if the nut is to be disassembled, which is difficult to operate and may cause damage to the mo...

Claims

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Application Information

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IPC IPC(8): F16B37/00
CPCF16B37/00
Inventor 唐晓峰王春健张树宁
Owner AECC SICHUAN GAS TURBINE RES INST
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