CN217784093U

CN217784093U - Air spring structure for loader-digger

Info

Publication number: CN217784093U
Application number: CN202221889642.8U
Authority: CN
Inventors: 刘宇波; 董则厚; 陈友洪
Original assignee: Guizhou Jonyang Kinetics Co Ltd
Current assignee: Guizhou Jonyang Kinetics Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-11-11
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses an air spring structure for backhoe loader, including last sealing ring (2), lower sealing ring (5) and gasbag (3), lower sealing ring (5) central authorities install cushion (4), and there is bellied annular bearing structure upper sealing ring (2) lower surface, bellied annular bearing structure and cushion (4) cooperation under gassing state. Through the annular supporting structure designed at the bottom of the upper sealing ring, when shock absorption is not needed, the air spring structure is free of elasticity due to the fact that the compressed air in the upper sealing ring is discharged, meanwhile, the upper sealing ring falls onto the cushion block, the height of the whole machine is reduced, transportation is facilitated, the annular supporting structure has good strength, the conical structure and the cushion block can better correspond to impact in the transportation process in a matched mode, and the structural integrity of the air spring is guaranteed.

Description

Air spring structure for loader-digger

Technical Field

The invention relates to an air spring structure on a loader-digger.

Background

The original suspension damper of the loader-digger is a steel plate spring, the damping is poor, the vibration is large, the jolt is violent, the running speed of the loader-digger can reach more than 80km along with the technical progress, and the damping structure on the original loader-digger can not meet the requirements of the whole machine on high-speed running and off-road running. The air spring is a spring which is filled with compressed air in a telescopic closed container and utilizes the elastic action of the air. Chinese patent CN206615117U discloses a heavy-duty vehicle air spring, which has a better sealing performance, but the structure of the upper sealing plate is fragile, and the air spring is deformed after being deflated due to long-time bearing, so that the air spring needs to be maintained for a long time, and for excavating and loading vehicles, long-distance transportation is often required, and the air spring does not need to be maintained during transportation.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the air spring structure is suitable for the loader-digger.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an air spring structure for backhoe loader, includes upper seal ring 2, lower seal ring 5 and

gasbag

3, and 5 central authorities of lower seal

ring install cushion

4, and 2 lower surfaces of upper seal ring have bellied annular bearing structure, bellied annular bearing structure and cushion 4 cooperation under the gassing state.

The inner side of the annular supporting structure is provided with a conical inclined plane.

The cushion block 4 is made of rubber, and the edge of the upper end of the cushion block is provided with an arc chamfer.

The center of the upper sealing ring 2 is provided with an inflation tube 1.

The upper sealing ring 2 is arranged on the lower surface of the upper seat plate, the upper surface of the upper seat plate is provided with a supporting seat, and the supporting seat and the upper seat plate are provided with holes and are provided with an inflation tube 1.

The lower sealing ring 5 and the cushion block 4 are arranged on the upper surface of the lower seat plate, and the lower surface of the lower seat plate is provided with an inner cylinder structure and an outer cylinder structure.

The air bag 3 is formed by fusing and processing cord fabric and rubber, the cord fabric is 3 layers, and the warp threads of the adjacent cord fabric layers are vertical.

The invention has the beneficial effects that:

through the annular supporting structure designed at the bottom of the upper sealing ring, when shock absorption is not needed, the air spring structure is free of elasticity due to the fact that the compressed air in the upper sealing ring is discharged, meanwhile, the upper sealing ring falls onto the cushion block, the height of the whole machine is reduced, transportation is facilitated, the annular supporting structure has good strength, the conical structure and the cushion block can better correspond to impact in the transportation process in a matched mode, and the structural integrity of the air spring is guaranteed. When shock absorption is needed, compressed air is filled from the air inflation pipe to enable the air spring structure to be an elastic body to achieve shock absorption.

The upper and lower seat plate structures are designed at the upper and lower ends of the air spring, the air spring can be more conveniently installed between the frame and the chassis through the seat plate structures, and the air spring can be disassembled by utilizing the installation structure when the air spring needs to be maintained and replaced.

Drawings

Fig. 1 is a schematic view of the air spring in an inflated state.

FIG. 2 is a schematic view of an air spring in a deflated condition.

Fig. 3 is a schematic view of the structure of the airbag.

FIG. 4 is a schematic view of an airbag comprised of a three-ply bonded;

FIG. 5 is a schematic view of the curtain direction.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The structure of the air spring air bag is shown in figure 3 and comprises two parts, namely an annular structure at the upper end and the lower end and a bag-shaped rubber shock absorber at the periphery, wherein the rubber shock absorber is formed by fusing cord fabric and rubber. When the cords are fused with rubber, the cords are 3 layers, see detail figure 4, with a layer spacing of 1mm, the first layer being 45 ° to the horizontal, the second layer being 135 ° to the horizontal, and the third layer being 45 ° to the horizontal, see figure 5.

The mounting structure of the air spring is shown in figure 1, the upper end of an air bag 3 is mounted on an upper sealing ring 2, and the lower end of the air bag is mounted on a lower sealing ring 5. The upper and lower sealing rings and the air bag 3 form a closed space, compressed air is filled from the vent hole 1 to inflate the air spring structure, a damping elastic body with constant diameter and height changing along with the displacement of the chassis and the frame is formed, and the load of the part above the frame and the impact of the chassis are borne.

The central installation of lower sealing ring 5 has cushion 4, and lower sealing ring 5 and cushion 4 are installed at lower bedplate upper surface, and two inside and outside tubular structures of lower bedplate lower surface installation have a bellied tubular structure correspondingly on the chassis, and the inner skleeve of lower bedplate lower surface can the suit on the tubular structure on chassis, realizes installing air spring on the chassis.

The lower surface of the upper sealing ring 2 is provided with a raised annular supporting structure which is matched with the cushion block 4 in the deflation state. There is the toper inclined plane annular bearing structure's inboard, and cushion 4 adopts the rubber preparation, and the upper end edge has the arc chamfer, and under the gassing state, annular bearing structure can fall and form bearing structure on cushion 4, and the cooperation of the arc chamfer of toper inclined plane and cushion 4 can play a guide effect and prevent the skew, and annular bearing structure itself has certain thickness, can satisfy the intensity requirement that bears.

The upper seal ring 2 is installed at the upper seat plate lower surface, and upper seat plate upper surface mounting has a supporting seat, and supporting seat and upper seat plate trompil and installation gas tube 1 aerify through gas tube 1 in to the gasbag and can make air spring become the elastomer and realize the shock attenuation.

Claims

1. The utility model provides an air spring structure for backhoe loader, includes upper seal ring (2), lower seal ring (5) and gasbag (3), its characterized in that: cushion (4) are installed to lower sealing ring (5) central authorities, and there is bellied annular bearing structure upper sealing ring (2) lower surface, bellied annular bearing structure and cushion (4) cooperation under the gassing state.

2. The air spring structure for the backhoe loader according to claim 1, wherein: the inner side of the annular supporting structure is provided with a conical inclined plane.

3. The air spring structure for the backhoe loader according to claim 2, wherein: the cushion block (4) is made of rubber, and the edge of the upper end of the cushion block is provided with an arc chamfer.

4. The air spring structure for a backhoe loader according to any one of claims 1 to 3, wherein: the center of the upper sealing ring (2) is provided with an inflation tube (1).

5. The air spring structure for the backhoe loader according to claim 4, wherein: the upper sealing ring (2) is arranged on the lower surface of the upper seat plate, the upper surface of the upper seat plate is provided with a supporting seat, and the supporting seat and the upper seat plate are provided with holes and are provided with inflation tubes (1).

6. The air spring structure for the backhoe loader according to claim 4, wherein: the lower sealing ring (5) and the cushion block (4) are arranged on the upper surface of the lower seat plate, and the lower surface of the lower seat plate is provided with an inner cylinder structure and an outer cylinder structure.

7. The air spring structure for the backhoe loader according to claim 1, wherein: the air bag (3) is formed by fusing and processing cord fabric and rubber, the cord fabric is 3 layers, and the warp threads of the adjacent cord fabric layers are vertical.