CN211288570U

CN211288570U - Air spring's leather bag

Info

Publication number: CN211288570U
Application number: CN201921965761.5U
Authority: CN
Inventors: 杨敏艳; 黄锦棣; 吴国雄; 汪进; 张波
Original assignee: Anhui Tuopusi Auto Parts Co ltd; Baolong Anhui Auto Parts Co ltd
Current assignee: Anhui Tuopusi Auto Parts Co ltd; Baolong Anhui Auto Parts Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-08-18
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a leather bag of an air spring, which comprises an inner rubber layer, an outer rubber layer, and a first cord fabric layer and a fourth cord fabric layer which are cross-wound and are vulcanized and coated between the inner rubber layer and the outer rubber layer; the leather bag comprises an upper sub-opening part, a shoulder part, a vertical lifting part, a bending part and a lower sub-opening part from top to bottom; a second cord fabric layer and a third cord fabric layer are also crossly wound between the first cord fabric layer and the fourth cord fabric layer corresponding to the shoulder part or the shoulder part and the vertical lifting part of the leather bag. The utility model discloses not only solved the leather bag shoulder position and curled the problem that leads to fatigue life not enough, effectively solved the fold and the heat dissipation problem at the crooked position of leather bag moreover, it is less relatively to use the cord fabric material simultaneously, effectual control manufacturing cost.

Description

Air spring's leather bag

Technical Field

The utility model relates to an air spring's leather bag belongs to the machine parts field.

Background

The air spring bag is generally formed by integrally vulcanizing an inner rubber layer, a cord fabric layer and an outer rubber layer. The existing standard type air spring usually adopts two adjacent layers of cord fabrics to be wound in a crossed manner so as to meet the standard specification requirements, but when a part of membrane type leather bags use two layers of cord fabrics, the performances of airtightness, elasticity, load, inflation outer diameter, volume, burst strength and the like meet the requirements, but because the rigidity of the shoulder parts of the leather bags is insufficient, the shoulder parts of the leather bags are curled to wrap the upper cover under certain working pressure due to the load of the leather bags, so that the leather bags are contacted with the suspension and the upper cover to generate serious extrusion and friction, the fatigue life of the leather bags cannot meet the requirements, and the defects exist.

The high-strength air spring also has the advantages that four layers of cord fabrics are used, two adjacent layers of cord fabrics are wound in a crossed mode, the standard requirements can be met, the four layers of cord fabrics can cause the thickness of a leather bag at the bending part to be thickened, the bending part can be wrinkled and poor in heat dissipation when the leather bag is loaded, the rubber performance is affected, the air leakage and the fatigue life cannot meet the requirements, and the defects exist.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects, the utility model provides an air spring leather bag structure to improve the supporting rigidity and strength of a membrane leather bag. The utility model adopts the technical scheme as follows:

a leather bag of an air spring comprises an inner rubber layer, an outer rubber layer, a first cord fabric layer and a fourth cord fabric layer which are vulcanized and coated between the inner rubber layer and the outer rubber layer and are wound in a cross mode; the leather bag comprises an upper sub-opening part, a shoulder part, a vertical lifting part, a bending part and a lower sub-opening part from top to bottom; a second cord fabric layer and a third cord fabric layer are also crossly wound between the first cord fabric layer and the fourth cord fabric layer corresponding to the shoulder part or the shoulder part and the vertical lifting part of the leather bag.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a two-layer cord fabric is adopted to the main part of leather bag, adds two-layer cord fabric again at shoulder position or shoulder position and helicopter position, has improved the intensity at leather bag shoulder position, and the effectual shoulder position that prevents takes place to curl and improves the bursting strength of the leather bag more than the crooked position of leather bag. The utility model discloses not only solved the leather bag shoulder position and curled the problem that leads to fatigue life not enough, effectively solved the fold and the heat dissipation problem at the crooked position of leather bag moreover, it is less relatively to use the cord fabric material simultaneously, effectual control manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a partial structure of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1-2, a bladder of an air spring includes an inner rubber layer 1, an outer rubber layer 2, and a first cord fabric layer 3 and a fourth cord fabric layer 4 wound crosswise and vulcanized between the inner rubber layer 1 and the outer rubber layer 2; the leather bag comprises an upper seam allowance part 7, shoulder parts 8, a vertical lifting part 9, a bending part 10 and a lower seam allowance part 11 from top to bottom; a second cord fabric layer 5 and a third cord fabric layer 6 are also crossly wound between the first cord fabric layer 3 and the fourth cord fabric layer 4 corresponding to the shoulder part 8 of the leather bag.

The utility model discloses a two-layer cord fabric is adopted to the main part of leather bag, adds two-layer cord fabric again at shoulder position or shoulder position and helicopter position, has improved the intensity at leather bag shoulder position, and the effectual shoulder position that prevents takes place to curl and improves the bursting strength of the leather bag more than the crooked position of leather bag. The utility model discloses not only solved the leather bag shoulder position and curled the problem that leads to fatigue life not enough, effectively solved the fold and the heat dissipation problem at the crooked position of leather bag moreover, it is less relatively to use the cord fabric material simultaneously, effectual control manufacturing cost.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A leather bag of an air spring is characterized in that: the leather bag comprises an inner rubber layer, an outer rubber layer, and a first cord fabric layer and a fourth cord fabric layer which are wound in a cross mode and are coated between the inner rubber layer and the outer rubber layer in a vulcanization mode; the leather bag comprises an upper sub-opening part, a shoulder part, a vertical lifting part, a bending part and a lower sub-opening part from top to bottom; a second cord fabric layer and a third cord fabric layer are also crossly wound between the first cord fabric layer and the fourth cord fabric layer corresponding to the shoulder part or the shoulder part and the vertical lifting part of the leather bag.