CN-224213417-U - Fastening structure for side beam of excavator

Abstract

The utility model discloses an excavator side beam fastening structure which comprises a side beam main body, four fastening components, four waterproof components and four annular grooves, wherein the side beam main body is provided with four threaded sedimentation holes, the four fastening components are respectively arranged in the four threaded sedimentation holes and comprise limit screws which are in threaded connection in the threaded sedimentation holes, each of the threaded sedimentation holes is internally provided with a spring gasket which is used for improving limiting compactness, the end of each of the limit screws is provided with a cross groove, and the four waterproof components are respectively matched with the four fastening components and are used for avoiding the occurrence of rusting of the four limit screws and comprise the annular grooves formed in the notch of the threaded sedimentation hole. When the fastening structure is used, the structure is matched with the fastening structure on the basis of good limiting effect, so that the situation that the limiting screw is rusted can be effectively avoided, and the practical service life is prolonged.

Inventors

• KONG XIANGLIN
• LIU ZHAOJIAN

Assignees

• 山东海晴工程机械制造有限公司

Dates

Publication Date

20260508

Application Date

20250317

Claims (6)

1. 1. An excavator side rail fastening structure, comprising: the side beam comprises a side beam main body (1), wherein four threaded sedimentation holes (2) are formed in the side beam main body (1); The four fastening components are respectively arranged in four thread settlement holes (2), each fastening component comprises a limit screw (3) which is in threaded connection with the thread settlement hole (2), each thread settlement hole (2) is internally provided with a spring gasket (4), each spring gasket (4) is used for improving limit tightness, and the end head of each limit screw (3) is provided with a cross groove; Four waterproof components, four waterproof components respectively with four fastening components's cooperation for avoid four stop screw (3) rusty condition to appear.
2. 2. The edge beam fastening structure of the excavator according to claim 1, wherein the waterproof component comprises an annular groove (14) formed at the notch of the threaded sedimentation hole (2), a rotary circular plate (7) is arranged at the notch of the threaded sedimentation hole (2), a cylindrical cavity (10) is formed in the rotary circular plate (7), a circular opening is formed in the rear side wall of the cylindrical cavity (10), a second connecting circular plate (9) is arranged in the cylindrical cavity (10), a reset spring (6) is fixedly connected to the rear side of the second connecting circular plate (9), and a first connecting circular plate (5) is fixedly connected to the rear side of the reset spring (6).
3. 3. The fastening structure of an excavator side beam according to claim 2, characterized in that the rear side of the first connecting circular plate (5) is provided with a cross bar cooperating with a cross groove.
4. 4. The fastening structure of the side beam of the excavator according to claim 2, wherein two connecting blocks (11) are symmetrically and fixedly connected to the side inner wall of the annular groove (14), strip-shaped limit grooves (12) are respectively formed in the rear sides of the two connecting blocks (11), and limit clamping blocks (13) are respectively and fixedly connected to the two sides of the rotary circular plate (7).
5. 5. The fastening structure of an excavator side beam according to claim 4, wherein two of the limit blocks (13) are engaged with two of the strip-shaped limit grooves (12).
6. 6. The fastening structure of the side beam of the excavator according to claim 2, wherein a twisting strip (8) is fixedly connected to the front side of the rotating circular plate (7).

Description

Fastening structure for side beam of excavator Technical Field The utility model relates to the technical field of excavator accessories, in particular to an excavator side beam fastening structure. Background An excavator, which is one of the main types of earth moving machines, has been rapidly developed in the field of construction machines in recent years, and is widely used in various kinds of construction. The main function of the excavator is to excavate material above or below the deck by means of a bucket and load it into a transport vehicle or unload it to a stockyard. The boundary beam is taken as an important part of the excavator, and the stability and the reliability of the fastening structure of the boundary beam are directly related to the overall performance and the service life of the excavator; The prior side beam fastening structure of the excavator, such as the utility model patent with the publication number of CN214423455U, adopts a simple pin shaft or a screw for connection, however, the connection mode exposes some problems in actual use, the fasteners such as the screw and the like are exposed in a wet and dusty working environment for a long time, are easily affected by corrosion and rust, and cause the fastening force to be reduced, even loose and fall off, and hidden danger is brought to the safe operation of the excavator, so that the problem needs to be solved. Disclosure of utility model The utility model aims to solve the defects in the prior art, and provides the side beam fastening structure of the excavator, which has the advantages that when in use, the side beam fastening structure is matched with the structure in a mode on the basis of good limiting effect, so that the condition that a limiting screw is rusted can be effectively avoided, and the practical service life is prolonged. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The side beam fastening structure of the excavator comprises a side beam main body, four threaded sedimentation holes, four fastening components and four waterproof components, wherein the four fastening components are respectively arranged in the four threaded sedimentation holes, each fastening component comprises a limit screw which is in threaded connection with the threaded sedimentation holes, each threaded sedimentation hole is internally provided with a spring gasket used for improving limiting compactness, the end of each limit screw is provided with a cross groove, and the four waterproof components are respectively matched with the four fastening components and are used for avoiding the occurrence of the condition that the four limit screws rust. Preferably, the waterproof assembly comprises an annular groove formed in the notch of the thread settlement hole, a rotary circular plate is arranged in the notch of the thread settlement hole, a cylindrical cavity is formed in the rotary circular plate, a circular opening is formed in the rear side wall of the cylindrical cavity, a second connecting circular plate is arranged in the cylindrical cavity, a reset spring is fixedly connected to the rear side of the second connecting circular plate, and a first connecting circular plate is fixedly connected to the rear side of the reset spring. Preferably, the rear side of the first connection circular plate is provided with a cross bar matched with the cross groove. Preferably, two connecting blocks are symmetrically and fixedly connected to the side inner wall of the annular groove, strip-shaped limiting grooves are formed in the rear sides of the two connecting blocks, and limiting clamping blocks are fixedly connected to the two sides of the rotating circular plate. Preferably, the two limit clamping blocks are matched with the two strip-shaped limit grooves. Preferably, a twisting strip is fixedly connected to the front side of the rotating circular plate. Compared with the prior art, the utility model has the beneficial effects that: Through fastening and waterproof construction, showing the installation steadiness and the waterproof performance that have improved the excavator boundary beam, the spring spacer's application has effectively reduced the fastener not hard up, has strengthened the stability and the reliability of connection, waterproof assembly's ingenious design has ensured that stop screw avoids the moisture erosion, has prolonged life. Drawings Fig. 1 is a schematic structural view of an edge beam fastening structure of an excavator according to the present utility model; FIG. 2 is a schematic cross-sectional view of FIG. 1; FIG. 3 is an enlarged view at A of FIG. 2; fig. 4 is a schematic view of the mating of one of the fastening components and the waterproof component. In the figure, a boundary beam main body 1, a thread sedimentation hole 2, a limit screw 3, a spring gasket 4, a first connecting circular plate 5, a return spring 6, a rotating circular plate 7, a tw