CN211849701U - Excavator swing arm front fork structure - Google Patents
Excavator swing arm front fork structure Download PDFInfo
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- CN211849701U CN211849701U CN202020268455.2U CN202020268455U CN211849701U CN 211849701 U CN211849701 U CN 211849701U CN 202020268455 U CN202020268455 U CN 202020268455U CN 211849701 U CN211849701 U CN 211849701U
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- front fork
- arc
- reinforcing plate
- excavator
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Abstract
The utility model discloses under the reliable prerequisite of assurance simple structure, provide an excavator swing arm front fork structure, can compromise the lightweight simultaneously, reduce the outer surface welding vestige, in order to solve above-mentioned technical problem, the utility model discloses a technical scheme be: a front fork structure of a movable arm of an excavator comprises a vertical plate, an inner reinforcing plate, a bending plate and an arc reinforcing plate, wherein the inner arc surface of the arc reinforcing plate is fixedly attached to the outer arc of the front section of the vertical plate and is fixedly welded on the vertical plate; the bending plate is positioned between the two vertical plates, and the inner reinforcing plate and the bending plate play a supporting and reinforcing role on the front fork; the utility model discloses but wide application in the excavator field.
Description
Technical Field
The utility model relates to an excavator swing arm front fork structure belongs to excavator technical field.
Background
The movable arm is an important structural part in the excavator, and the connection part of the front fork of the movable arm and the hinge point of the root part of the bucket rod is a key stress point. The reliability of the front fork structure directly affects the service life of the excavator working device. In conventional excavator arm front fork designs, an integrally cast or welded sheet structure is typically employed, although of sufficient strength, to increase overall mass. For a plate welding structure, two layers or even three layers of plates are welded, and in the machining process, the layers are welded, so that welding seams are increased, and the appearance attractiveness is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses under the reliable prerequisite of assurance simple structure, provide an excavator swing arm front fork structure, can compromise the lightweight simultaneously, reduce the outer surface welding vestige.
In order to solve the technical problem, the utility model discloses a technical scheme be: a front fork structure of a movable arm of an excavator comprises a vertical plate, an inner reinforcing plate, a bending plate and an arc reinforcing plate, wherein the inner arc surface of the arc reinforcing plate is fixedly attached to the outer arc of the front section of the vertical plate and is fixedly welded on the vertical plate; the bending plate is positioned between the two vertical plates, and the inner reinforcing plate and the bending plate support and reinforce the front fork.
Preferably, the overall size of the arc-shaped reinforcing plate is smaller than that of the vertical plate in the width direction.
Preferably, the bent plate is formed by welding or direct casting.
Preferably, the inner surface and both ends of the arc-shaped reinforcing plate are welded on the vertical plate.
Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses utilize the steel sheet to have the characteristic of good tensile ability in rolling direction, weld the great arc reinforcing plate of width at the forearm front fork riser front end, effectual reduction riser stress level has improved the reliability, and has saved the materials and alleviateed the quality than conventional structure.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the state of the present invention.
In the figure: 1 is a vertical plate, 2 is an inner reinforcing plate, 3 is a bending plate and 4 is an arc reinforcing plate.
Detailed Description
As shown in fig. 1 and 2, the front fork structure of the excavator boom of the present invention comprises a vertical plate 1, an inner reinforcing plate 2, a bending plate 3 and an arc reinforcing plate 4, wherein an inner arc surface of the arc reinforcing plate 4 is fixedly attached to an outer arc surface of a front section of the vertical plate 1 and is welded on the vertical plate 1, and the inner reinforcing plate 2 is welded on an inner side surface of the vertical plate 1 and is fixedly welded with the bending plate 3 and the vertical plate 1; the bending plate 3 is positioned between the two vertical plates 1, and the inner reinforcing plate 2 and the bending plate 3 support and reinforce the front fork.
In the width direction, the overall size of the arc-shaped reinforcing plate 4 is smaller than that of the vertical plate 1.
The bending plate 3 is formed by welding or direct casting.
The inner surface and two ends of the arc-shaped reinforcing plate 4 are welded on the vertical plate 1.
The utility model discloses excavator swing arm front fork structure includes riser, arc reinforcing plate, the board of bending and interior reinforcing plate, all through welded fastening, interior reinforcing plate and the equal laminating welding of the board of bending and riser. The plate welded fastening that bends is between two risers, and arc reinforcing plate welded fastening is on the riser, and interior reinforcing plate is all around respectively with the riser with bend the board laminating welding.
The utility model discloses utilize the steel sheet to have the characteristic of good tensile ability in rolling direction, weld the great arc reinforcing plate of width at the forearm front fork riser front end, effectual reduction riser stress level has improved the reliability, and has saved the materials and alleviateed the quality than conventional structure.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (4)
1. The front fork structure of the excavator moving arm is characterized by comprising a vertical plate (1), an inner reinforcing plate (2), a bent plate (3) and an arc reinforcing plate (4), wherein the inner arc surface of the arc reinforcing plate (4) is fixedly attached to the outer arc of the front section of the vertical plate (1) and is fixedly welded on the vertical plate (1), and the inner reinforcing plate (2) is welded on the inner side surface of the vertical plate (1) and is fixedly welded with the bent plate (3) and the vertical plate (1); the bending plate (3) is positioned between the two vertical plates (1), and the inner reinforcing plate (2) and the bending plate (3) support and reinforce the front fork.
2. A front fork structure of an excavator arm according to claim 1, wherein the overall dimension of the arc-shaped reinforcement plate (4) in the width direction is smaller than that of the upright plate (1).
3. A front fork structure of an excavator arm according to claim 1, wherein the bent plate (3) is formed by welding or direct casting.
4. A front fork structure of an excavator motor arm according to claim 1, wherein the inner surface and both ends of the arc-shaped reinforcing plate (4) are welded to the vertical plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020268455.2U CN211849701U (en) | 2020-03-06 | 2020-03-06 | Excavator swing arm front fork structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020268455.2U CN211849701U (en) | 2020-03-06 | 2020-03-06 | Excavator swing arm front fork structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211849701U true CN211849701U (en) | 2020-11-03 |
Family
ID=73237105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020268455.2U Active CN211849701U (en) | 2020-03-06 | 2020-03-06 | Excavator swing arm front fork structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211849701U (en) |
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2020
- 2020-03-06 CN CN202020268455.2U patent/CN211849701U/en active Active
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