CN111963562A

CN111963562A - Lug connection structure

Info

Publication number: CN111963562A
Application number: CN202010843088.9A
Authority: CN
Inventors: 于慧; 黄龙龙; 初兵; 宋志军; 刘振宇
Original assignee: Shenyang Aircraft Design and Research Institute Aviation Industry of China AVIC
Current assignee: Shenyang Aircraft Design and Research Institute Aviation Industry of China AVIC
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2020-11-20

Abstract

The application belongs to the technical field of auricle connection structure design, concretely relates to auricle connection structure, include: a single tab; double-lug pieces; each bushing is correspondingly arranged in one through hole of the double lug plate, and the inner wall of each bushing gradually shrinks towards the direction far away from the other bushing; the connecting shaft penetrates through the through hole in the single lug plate, and each end correspondingly extends out of one bushing; and each bolt is correspondingly screwed at one end of the connecting shaft and compresses the corresponding bushing.

Description

Lug connection structure

Technical Field

The application belongs to the technical field of lug connection structure design, and particularly relates to a lug connection structure.

Background

In the engineering, the connection between the single lug plate and the double lug plate is mostly realized through the bolt or the pin shaft, as shown in fig. 1, due to the processing deviation, abrasion and the like, a larger gap is easily formed between the bolt or the pin shaft and the lug plate, so that the connection between the lug plate and the lug plate cannot meet the requirements well.

The present application has been made in view of the above-mentioned technical drawbacks.

It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.

Disclosure of Invention

It is an object of the present application to provide an ear connection structure to overcome or alleviate at least one of the technical deficiencies of the known prior art.

The technical scheme of the application is as follows:

a tab connection structure comprising:

a single tab;

double-lug pieces;

each bushing is correspondingly arranged in one through hole of the double lug plate, and the inner wall of each bushing gradually shrinks towards the direction far away from the other bushing;

the connecting shaft penetrates through the through hole in the single lug plate, and each end correspondingly extends out of one bushing;

and each bolt is correspondingly screwed at one end of the connecting shaft and compresses the corresponding bushing.

According to at least one embodiment of the present application, the above-described tab connection structure has a crack in an axial direction on each bushing.

According to at least one embodiment of the present application, the ear connection structure further includes:

and each gasket is correspondingly sleeved at one end of the connecting shaft and is positioned between the corresponding bolt and the corresponding bushing.

and the bearing is arranged in the through hole of the single lug plate and is sleeved on the connecting shaft.

and the anti-abrasion sleeve is arranged in the through hole of the single lug plate and is sleeved on the connecting shaft.

According to at least one embodiment of the present application, in the tab connection structure, the outer wall of the wear-resistant sleeve is provided with an oil storage groove; the oil storage tank stores lubricating oil.

Drawings

FIG. 1 is a schematic view of a conventional tab attachment structure;

fig. 2 is a schematic view of a tab connection structure provided in an embodiment of the present application;

wherein:

1-single ear piece; 2-double ear; 3-a bushing; 4-a connecting shaft; 5-bolt; 6-a gasket; 7-bearing.

For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.

Detailed Description

In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.

In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.

Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.

The present application is described in further detail below with reference to fig. 1-2.

A tab connection structure comprising:

a single lug 1;

a double lug 2;

each bush 3 is correspondingly arranged in one through hole of the double lug piece 2, and the inner wall of each bush 3 gradually shrinks towards the direction far away from the other bush 3;

the connecting shaft 4 penetrates through the through hole in the single lug plate 1, and each end of the connecting shaft correspondingly extends out of one bushing 3;

and each bolt 5 is correspondingly screwed at one end of the connecting shaft 4 and compresses the corresponding bushing 3.

With respect to the ear attachment structure disclosed in the above embodiments, it will be appreciated by those skilled in the art that, the bushings 3 are arranged in two through holes of the double lug plates 2, the inner wall of each bushing 3 is designed to gradually shrink away from the other bushing 3, that is, the inner wall of each bush 3 is approximately conical, each end of a connecting shaft 4 which is arranged through a through hole on the single lug piece 1 correspondingly extends out of one bush 3, it can be understood that the shape of the outer wall of the connecting shaft 4 at the matching part of the bush 3 is matched with the shape of the inner wall of the corresponding bush 3, in the assembly process of the connecting lug plate structure, bolts 5 at two ends of a connecting shaft 4 can be simultaneously screwed down to tightly press corresponding bushes 3, so that the corresponding bushes 3 are tightly plugged between corresponding through holes in the double lug plates 2 and corresponding ends of the connecting shaft 4, and gaps between the connecting shaft 4 and the double lug plates 2 due to machining size deviation are eliminated.

For the lug connecting structure disclosed in the above embodiment, it can be further understood by those skilled in the art that when the lug connecting structure generates a large gap due to abrasion between the connecting shaft 4 and the through hole on the lug plate 2, the bolt 5 can be further tightened to further tightly plug the corresponding bushing 3 between the corresponding through hole on the lug plate 2 and the corresponding end of the connecting shaft 4, so that the gap generated due to abrasion between the connecting shaft 4 and the lug plate 2 can be conveniently and quickly eliminated.

With regard to the lug connection structure disclosed in the above embodiment, it can be understood by those skilled in the art that the force generated by the bushing 3 being pressed against the corresponding end of the connecting shaft 4 in the corresponding through hole of the double lug 2 is perpendicular to the inner wall surface thereof, and since the angle between the bushing and the double lug 2 is small, the component force generated in the axial direction of the connecting shaft 4 is small, and the additional bending moment generated to the double lug 2 is not large.

In some alternative embodiments, in the above-mentioned tab connection structure, each bushing 3 has a crack along the axial direction, so that it is easily deformed by being pressed by the corresponding bolt 4, and is tightly inserted between the corresponding through hole on the two tab pieces 2 and the corresponding end of the connecting shaft 4, and the gap between the connecting shaft 4 and the two tab pieces 2 is eliminated.

In some optional embodiments, the ear panel connection structure further includes:

and each gasket 6 is correspondingly sleeved at one end of the connecting shaft 4 and is positioned between the corresponding bolt 5 and the corresponding bushing 3.

and the bearing 7 is arranged in the through hole of the single lug plate 1 and is sleeved on the connecting shaft 4 so as to avoid direct abrasion between the connecting shaft 4 and the single lug plate 1.

the anti-abrasion sleeve is arranged in the through hole of the single lug piece 1 and is sleeved on the connecting shaft 4, so that direct abrasion between the connecting shaft 4 and the single lug piece 1 is avoided.

In some alternative embodiments, in the above-mentioned tab connection structure, the outer wall of the wear-resistant sleeve is provided with an oil sump; lubricating oil is stored in the oil storage tank, so that lubrication can be effectively provided between the outer wall of the anti-wear sleeve and the through hole of the single lug sheet 1 for a long time, and abrasion is reduced.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.

Claims

1. An ear connection structure, comprising:

a single ear (1);

a double tab (2);

the two bushings (3), each bushing (3) is correspondingly arranged in one through hole of the double lug plate (2), and the inner wall of each bushing gradually shrinks towards the direction far away from the other bushing (3);

the connecting shaft (4) penetrates through a through hole in the single lug plate (1), and each end of the connecting shaft correspondingly extends out of one bushing (3);

and each bolt (5) is correspondingly screwed at one end of the connecting shaft (4) and compresses the corresponding bushing (3).

2. The ear connection structure according to claim 1,

each of the bushings (3) has a crack in an axial direction.

3. The ear connection structure according to claim 1,

further comprising:

and each gasket (6) is correspondingly sleeved at one end of the connecting shaft (4) and is positioned between the corresponding bolt (5) and the corresponding bushing (3).

4. The ear connection structure according to claim 1,

further comprising:

and the bearing (7) is arranged in the through hole of the single lug plate (1) and is sleeved on the connecting shaft (4).

5. The ear connection structure according to claim 1,

further comprising:

the anti-abrasion sleeve is arranged in the through hole of the single lug plate (1) and is sleeved on the connecting shaft (4).

6. The ear connection structure according to claim 5,

the outer wall of the anti-wear sleeve is provided with an oil storage tank; the oil storage tank stores lubricating oil.