CN203412899U

CN203412899U - Nut with resilient sheet

Info

Publication number: CN203412899U
Application number: CN201320478722.9U
Authority: CN
Inventors: 孙毅刚
Original assignee: Wuxi Zhangjing Yugang Machinery Plant
Current assignee: Wuxi Zhangjing Yugang Machinery Plant
Priority date: 2013-08-05
Filing date: 2013-08-05
Publication date: 2014-01-29
Anticipated expiration: 2023-08-05

Abstract

The utility model relates to a nut with a resilient sheet. The nut comprises a nut body, wherein a resilient sheet is fixedly connected with the lower surface of the nut; the resilient sheet is in a circular-disc-shaped structure with a through hole in the center; the central axis of the through hole is overlapped with the central axis of a threaded through hole of the nut body; an arc surface is arranged on the upper surface of the resilient sheet and the lower surface of the resilient sheet is provided with an upwards-concave arc-shaped groove. Compared with an existing resilient sheet nut, the deformation of the circular-disc-shaped resilient sheet is uniform so that a great pre-tightening force is supplied to a screw and a shearing force and a bending moment to the screw are small; the nut with the resilient sheet has the characteristics of simple structure, long service life and high connection stability.

Description

Nut with shell fragment

Technical field

The utility model relates to a kind of nut, relates in particular to nut with elastic.

Background technique

Nut is to be applied to the most frequently used part that mechanical structure is fastenedly connected.Nut with elastic is a kind of novel nut, and more common nut, has the advantages that anti-loosing effect is good.When nut with elastic is used, the shell fragment on nut can produce deformation, and along with the impacting force of nut is larger, the elastic force of shell fragment is also larger, thereby plays anti-loosening locking effect.Although this nut can play certain locking effect, due to the continuous distortion of shell fragment, shearing force and moment of flexure that screw is subject to are increased, cause screw to go fastening effect because of distortion.

Model utility content

The applicant, for the above-mentioned shortcoming of prior art, studies and improves, and provides a kind of simple in structure, the nut with shell fragment that improve screw force-bearing situation, increases the service life.

The technological scheme that the utility model adopts is as follows:

A nut with shell fragment, comprises nut, the affixed shell fragment of lower surface of nut, centered by shell fragment with the disc-shaped structure of through hole, the center line dead in line of the central axis of through hole and the tapped through hole of nut; The upper surface of shell fragment is with cambered surface, and its lower surface has the upwards arc groove of indent.

The beneficial effects of the utility model are as follows:

The more existing nut with elastic of the utility model, because the deformation of discoid shell fragment is even, offers the pretightening force that screw is larger, and it is less to the shearing force of screw and moment of flexure, and it has simple in structure, long service life, the feature that stable connection is high.

Accompanying drawing explanation

Fig. 1 main sectional view of the present utility model.

Fig. 2 is three-dimensional structure diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described.

See Fig. 1 and Fig. 2, the utility model comprises nut 1, the affixed shell fragment 2 of lower surface of nut 1, centered by shell fragment 2 with the disc-shaped structure of through hole 21, the center line dead in line of the tapped through hole 11 of the central axis of through hole 21 and nut 1; The upper surface of shell fragment 2 is with cambered surface 23, and its lower surface has the upwards arc groove 22 of indent.

More than describing is to explanation of the present utility model, is not the restriction to model utility, and the utility model limited range is referring to claim, and without prejudice to spirit of the present utility model in the situation that, the utility model can be done any type of modification.

Claims

1. the nut with shell fragment, comprise nut (1), the affixed shell fragment of lower surface (2) of nut (1), it is characterized in that: centered by described shell fragment (2) with the disc-shaped structure of through hole (21), the center line dead in line of the tapped through hole (11) of the central axis of through hole (21) and nut (1); The upper surface of described shell fragment (2) is with cambered surface (23), and its lower surface has the upwards arc groove (22) of indent.