Excavator boundary beam fastening structure

Abstract

The utility model discloses an excavator boundary beam fastening structure which comprises a boundary beam body, and four threaded settlement holes are formed in the boundary beam body. And the four fastening assemblies are installed in the four threaded settling holes correspondingly, each fastening assembly comprises a limiting screw in threaded connection with the interior of the corresponding threaded settling hole, a spring gasket is installed in each threaded settling hole, and the spring gaskets are used for improving the limiting tightness. A cross groove is formed in the end of each limiting screw; and the four waterproof assemblies are matched with the four fastening assemblies correspondingly and used for avoiding the situation that the four limiting screws rust, and each waterproof assembly comprises an annular groove formed in a notch of the corresponding threaded settling hole. When the fastening structure is used, on the basis that a good limiting effect is achieved, the situation that the limiting screw rusts can be effectively avoided through the cooperation of the fastening structure and the mode structure, and the actual service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of excavator parts technology, and in particular to an excavator side beam fastening structure. Background Technology

[0002] Excavators, as one of the main types of earthmoving machinery, have seen rapid development in the construction machinery field in recent years and are widely used in various engineering construction projects. The primary function of an excavator is to excavate materials above or below the machine's bearing surface using its bucket and load them into transport vehicles or unload them at a stockpile. As a crucial component of the excavator, the stability and reliability of its fastening structure directly affect the overall performance and service life of the excavator.

[0003] Traditional excavator side beam fastening structures, such as the utility model patent with publication number CN214423455U, use simple pins or screws for connection. However, this connection method has revealed some problems in actual use. Screws and other fasteners are easily affected by corrosion and rust when exposed to a humid and dusty working environment for a long time, resulting in a decrease in fastening force or even loosening and falling off, which poses a threat to the safe operation of the excavator. Therefore, it is necessary to consider how to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fastening structure for the side beam of an excavator. This fastening structure, in addition to providing a good limiting effect during use, can effectively prevent the limiting screws from rusting and improve their actual service life when used in conjunction with the method structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fastening structure for an excavator side beam includes a side beam body with four threaded settlement holes; four fastening components, each fastening component being installed in one of the four threaded settlement holes, each fastening component including a limiting screw threaded into the threaded settlement hole, each threaded settlement hole having a spring washer installed in each threaded settlement hole to improve the tightness of the limiting; and each limiting screw having a cross groove at its end; and four waterproof components, each of the four waterproof components cooperating with the four fastening components to prevent the four limiting screws from rusting.

[0007] Preferably, the waterproof component includes an annular groove formed at the opening of the threaded settlement hole, a rotating circular plate is provided at the opening of the threaded settlement hole, a cylindrical cavity is provided inside the rotating circular plate, a circular opening is provided on the rear side wall of the cylindrical cavity, a second connecting circular plate is provided inside the cylindrical cavity, a return 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 return spring.

[0008] Preferably, the rear side of the first connecting circular plate is provided with a cross bar that mates with the cross groove.

[0009] Preferably, two connecting blocks are symmetrically fixedly connected to the inner side wall of the annular groove, and a strip-shaped limiting groove is opened on the rear side of each of the two connecting blocks. Limiting blocks are fixedly connected to both sides of the rotating circular plate.

[0010] Preferably, the two limiting blocks cooperate with the two strip-shaped limiting grooves.

[0011] Preferably, a torsion bar is fixedly connected to the front side of the rotating circular plate.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] The fastening and waterproof structure significantly improves the installation stability and waterproof performance of the excavator side beam. The application of spring washers effectively reduces fastener loosening, enhances the stability and reliability of the connection, and the ingenious design of the waterproof components ensures that the limit screws are protected from moisture erosion, extending their service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the excavator side beam fastening structure proposed in this utility model;

[0015] Figure 2 for Figure 1 A cross-sectional schematic diagram;

[0016] Figure 3 for Figure 2 Enlarged view of point A;

[0017] Figure 4 This is a schematic diagram showing the combination of one of the fastening components and the waterproofing component.

[0018] In the figure: 1 Side beam body, 2 Threaded settlement hole, 3 Limiting screw, 4 Spring washer, 5 First connecting round plate, 6 Reset spring, 7 Rotating round plate, 8 Torsion bar, 9 Second connecting round plate, 10 Columnar cavity, 11 Connecting block, 12 Limiting groove, 13 Limiting block, 14 Annular groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-4 A fastening structure for the side beam of an excavator includes a side beam body 1, on which four threaded settlement holes 2 are provided;

[0021] The device also includes four fastening components, each installed in one of the four threaded settlement holes 2. Each fastening component includes a limiting screw 3 threaded into the settlement hole 2, and a spring washer 4 installed in each settlement hole 2. The spring washer 4 improves the tightness of the limit, increasing the stability and reliability of the connection. Utilizing its elastic properties, it absorbs energy when the fastener is subjected to vibration or impact, reducing the possibility of loosening. Each limiting screw 3 has a Phillips head groove at its end for easy installation and removal using a Phillips screwdriver.

[0022] This includes four waterproof components, each cooperating with a fastening component to prevent the four limit screws 3 from rusting. Each waterproof component includes an annular groove 14 formed at the opening of the threaded settlement hole 2. A rotating circular plate 7, which can be made of plastic, is provided at the opening of the threaded settlement hole 2. A cylindrical cavity 10 is provided inside the rotating circular plate 7, with a circular opening on its rear side wall. A second connecting circular plate 9 is provided inside the cylindrical cavity 10. A return spring 6 is fixedly connected to the rear side, and a first connecting circular plate 5 is fixedly connected to the rear side of the return spring 6. A cross bar that mates with the cross groove is provided on the rear side of the first connecting circular plate 5. Two connecting blocks 11 are symmetrically fixedly connected to the inner side wall of the annular groove 14. A strip-shaped limiting groove 12 is provided on the rear side of each of the two connecting blocks 11. The upper and lower sides of the strip-shaped limiting groove 12 are sealed. Limiting blocks 13 are fixedly connected to both sides of the rotating circular plate 7. The two limiting blocks 13 mate with the two strip-shaped limiting grooves 12.

[0023] Among them, a torsion bar 8 is fixedly connected to the front side of the rotating circular plate 7, and the use of the torsion bar 8 makes it convenient to perform the torsion operation.

[0024] In this invention, when the side beam body 1 needs to be installed, the multiple threaded settlement holes 2 are aligned with the multiple mounting ports on the mounting bracket. First, the limiting screw 3 is screwed into the threaded settlement hole 2 through the cross-shaped groove using a Phillips screwdriver until the predetermined tightening force is achieved. During this process, a spring washer 4 is installed between the threaded settlement hole 2 and the limiting screw 3. The elastic properties of the spring washer 4 allow it to absorb energy when the fastener is subjected to vibration or impact, effectively reducing the possibility of loosening, thereby improving the stability and reliability of the connection. After being compressed by the limiting screw 3, the spring washer 4 generates a certain reverse elastic force. This elastic force acts between the side beam body 1 and the limiting screw 3, further enhancing the tightness of the connection and ensuring the stability of the side beam structure.

[0025] The user then takes the waterproof assembly, aligns the cross bar of the first connecting circular plate 5 with the cross groove, and presses the rotating circular plate 7 backward. This compresses the return spring 6, causing the rear side of the limiting block 13 to contact the rear inner wall of the annular groove 14. The user then twists the rotating circular plate 7 to rotate the limiting block 13 to the rear side of the corresponding limiting groove 12. The user then releases the rotating circular plate 7, and under the elastic action of the return spring 6, the limiting block 13 moves forward and engages in the corresponding limiting groove 12, completing the installation of the waterproof assembly. This relatively complete opening effectively improves the actual waterproof performance and extends the actual service life.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fastening structure for the side beam of an excavator, characterized in that, include: Side beam body (1), the side beam body (1) is provided with four threaded settlement holes (2); Four fastening components are respectively installed in four threaded sink holes (2). Each fastening component includes a limiting screw (3) threaded in the threaded sink hole (2). Each threaded sink hole (2) is equipped with a spring washer (4) to improve the tightness of the limit. Each limiting screw (3) has a cross groove at its end. Four waterproof components, each of which is fitted with a fastening component, are used to prevent the four limit screws (3) from rusting.

2. The excavator side beam fastening structure according to claim 1, characterized in that, The waterproof component includes an annular groove (14) opened at the groove of the threaded settlement hole (2). A rotating circular plate (7) is provided at the groove of the threaded settlement hole (2). A columnar cavity (10) is provided inside the rotating circular plate (7). A circular opening is provided on the rear side wall of the columnar cavity (10). A second connecting circular plate (9) is provided inside the columnar cavity (10). A return spring (6) is fixedly connected to the rear side of the second connecting circular plate (9). A first connecting circular plate (5) is fixedly connected to the rear side of the return spring (6).

3. The excavator side beam fastening structure according to claim 2, characterized in that, The rear side of the first connecting circular plate (5) is provided with a cross bar that mates with the cross groove.

4. The excavator side beam fastening structure according to claim 2, characterized in that, Two connecting blocks (11) are symmetrically fixedly connected to the inner side wall of the annular groove (14). A strip-shaped limiting groove (12) is opened on the rear side of the two connecting blocks (11). Limiting blocks (13) are fixedly connected to both sides of the rotating circular plate (7).

5. The excavator side beam fastening structure according to claim 4, characterized in that, The two limiting blocks (13) cooperate with the two strip-shaped limiting grooves (12).

6. The excavator side beam fastening structure according to claim 2, characterized in that, A torsion bar (8) is fixedly connected to the front side of the rotating circular plate (7).

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