A wear-resistant large excavator bucket

Abstract

The utility model discloses a kind of wear-resistant excavator large-scale excavator, including the main body of excavator, the main body is fixedly connected with wear plate, wear plate is evenly distributed with several welding interfaces of plate thickness penetration, the utility model is welded and connected by wear plate at welding interface and main body, welding fixing point of main body can be increased in different parts of wear plate, and structure is welded to wear plate edge, can greatly improve the firmness of welding connection between wear plate and main body, reduce the probability of wear plate from impact and vibration and occur during use, improve the protection effect of wear plate to main body, improve the wear resistance of excavator.

Description

Technical Field

[0001] This utility model belongs to the field of excavator bucket technology, and in particular relates to a wear-resistant large excavator bucket. Background Technology

[0002] The excavator bucket is a key working device of the excavator, which comes into direct contact with materials such as soil and rocks and is used for excavation, loading and other operations.

[0003] Patent CN217174972U discloses an excavator bucket that uses wear-resistant plates to protect it and extend its service life. However, when the wear-resistant plates are welded to the bucket, the weld points are concentrated at the edges of the wear-resistant plates, leaving gaps in the middle area. During operation, the impact and friction of materials cause the wear-resistant plates to vibrate and deform, especially in large buckets where the vibration and deformation are more severe. Stress concentrates at the edge welds, and prolonged stress can lead to weld cracks or even breakage, causing the wear-resistant plates to detach and reducing their protective effect on the bucket.

[0004] Therefore, it is necessary to improve the buckets in the existing technology. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a wear-resistant large excavator bucket that improves the connection strength between the wear plate and the bucket.

[0006] To achieve the above objectives, the specific technical solution of the wear-resistant excavator bucket of this utility model is as follows: A wear-resistant excavator bucket includes a bucket body, on which a wear-resistant plate is fixedly connected, and the wear-resistant plate has a plurality of weld joints that penetrate the thickness of the plate evenly distributed.

[0007] Preferably, in order to increase the welding area between the wear-resistant plate and the main body at the weld joint, the weld joint is a waist-shaped groove structure.

[0008] Preferably, in order to increase the welding area between the wear-resistant plate and the main body, the wear-resistant plate is spliced ​​together from multiple sub-plates, with a gap between two adjacent sub-plates.

[0009] Preferably, in order to improve the weld strength between the wear-resistant plate and the main body, bevels are provided on the four edges of the sub-plate and the four edges of the weld joint.

[0010] Preferably, in order to improve the firmness of the connection between the wear-resistant plate and the main body, a limiting block is fitted inside the weld joint, and the limiting block is detachably connected to the main body.

[0011] Preferably, in order to reduce corrosion and wear of the weld at the weld joint, the outer periphery of the limiting block is provided with an annular groove for accommodating the sealing ring, and the limiting block is sealed to the inner wall of the weld joint through the sealing ring.

[0012] Preferably, in order to improve the ease of disassembly and assembly between the limiting block and the main body, the limiting block is provided with a stepped hole that extends through its thickness direction, the main body is provided with a threaded hole, and a bolt that is threadedly connected to the threaded hole is provided in the stepped hole.

[0013] Preferably, to avoid interference between the limiting block and the weld, the limiting block is provided with a stepped portion circumferentially on the side edge of the side adjacent to the main body.

[0014] Preferably, in order to reduce corrosion of the wear-resistant plate and the main body, elastic sealing gaskets are provided on the side of the wear-resistant plate adjacent to the main body and on the side of the limiting block adjacent to the main body.

[0015] Preferably, in order to reduce wear on the limiting block, the height of the limiting block is less than the thickness of the wear-resistant plate.

[0016] The wear-resistant excavator bucket of this utility model has the following advantages: by welding the wear-resistant plate at the weld joint to the main body, welding fixing points between the wear-resistant plate and the main body can be increased at different parts of the wear-resistant plate. Furthermore, the welding of the edge of the wear-resistant plate can greatly improve the firmness of the welded connection between the wear-resistant plate and the main body, reduce the probability of the wear-resistant plate falling off due to impact and vibration during use, improve the protective effect of the wear-resistant plate on the main body, and improve the wear resistance of the bucket. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the bucket of this utility model; Figure 2 This is a schematic diagram of the installation structure of the wear-resistant plate of this utility model; Figure 3 This is a schematic diagram of the sub-plate of this utility model; Figure 4 This is a schematic diagram of the connection structure between the limiting block and the bolt of this utility model; Figure 5 This is a schematic diagram of the structure of the limiting block of this utility model; The markings in the diagram are as follows: 1. Main body; 2. Wear-resistant plate; 3. Limiting block; 4. Bolt; 5. Sealing ring; 201. Weld joint; 202. Sealing gasket; 203. Bevel; 204. Sub-plate; 301. Step hole; 302. Annular groove; 303. Step section. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0019] The terms "top surface," "bottom surface," and "bottom surface" are used with reference to the normal operating state of the excavator bucket and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] like Figure 1 and 2 As shown, a wear-resistant excavator bucket includes a bucket body 1, a wear-resistant plate 2 fixedly connected to the body 1, and a number of weld joints 201 that penetrate the thickness of the plate evenly distributed on the wear-resistant plate 2.

[0021] In the bucket of the aforementioned excavator, wear-resistant plates 2 are installed on the main body 1 to protect the main body 1, reduce its wear rate, and extend the service life of the bucket; wherein the wear-resistant plate 2 is a composite welded wear-resistant plate, with an inner layer of ordinary steel plate and an outer layer of Cr7C3 steel plate. The carbide-based alloy wear-resistant layer features high wear resistance, impact resistance, and ease of processing. Its edges are welded to the main body 1. Welding joints 201 are also provided on the wear-resistant plate 2, allowing for welding and fixing between the wear-resistant plate 2 and the main body 1. Multiple evenly distributed welding joints 201 increase the number of welding points between the wear-resistant plate 2 and the main body 1 at different locations, thereby improving the tightness and strength of the connection between the wear-resistant plate 2 and the main body 1. During the use of the bucket, the force exerted on the wear-resistant plate 2 is distributed to various welding points at different locations, reducing the stress on the edge welds. This significantly improves the connection strength between the wear-resistant plate 2 and the main body 1, reducing the likelihood of the wear-resistant plate 2 loosening or falling off, thus extending the service life of the bucket. Furthermore, the multiple welding joints 201 also reduce the weight of the wear-resistant plate 2, thereby reducing the load on the bucket.

[0022] Further improvements include, for example Figure 2 As shown, the weld joint 201 has a waist-shaped groove structure. The waist-shaped groove has a long, narrow slit structure, which can increase the side length of the weld joint 201. When the wear-resistant plate 2 is welded to the main body 1 along the four edges of the weld joint 201, the welding area between the wear-resistant plate 2 and the main body 1 can be increased, thereby improving the strength of the weld between the two. The narrow weld joint 201 also makes it difficult for materials to pass through the weld joint 201 and impact the main body 1, so as to ensure the protective effect of the wear-resistant plate 2 on the main body 1 and thus extend the service life of the bucket.

[0023] Further improvements include, for example Figure 2As shown, the wear-resistant plate 2 is composed of multiple sub-plates 204 spliced ​​together, with a gap between adjacent sub-plates 204. Compared to the whole wear-resistant plate 2, dividing it into multiple sub-plates 204 can effectively extend the length of its edges. After welding the edges of the sub-plates 204, the welding area between the sub-plates 204 and the main body 1 can be effectively increased, thereby more effectively dispersing the impact force received by the wear-resistant plate 2 and improving the weld strength of the wear-resistant plate 2 on the main body 1. Furthermore, when maintaining the wear-resistant plate 2 in the future, each sub-plate 204 can be maintained individually according to the degree of wear, thereby reducing maintenance costs.

[0024] Further improvements include, for example Figure 3 As shown, bevels 203 are provided on all four edges of the subplate 204 and the weld joint 201. For the thicker wear-resistant plate 2, the bevels 203 can reserve a certain space so that the welding rod, welding wire or electrode can reach the root of the joint, ensuring that the root metal is fully melted and forms a strong fusion, ensuring the integrity of the weld from the surface to the root, thereby improving the strength of the weld of the wear-resistant plate 2.

[0025] Further improvements include, for example Figure 1 and 4 As shown, the weld joint 201 is internally fitted with a limiting block 3. The limiting block 3 has a stepped hole 301 that extends through its thickness direction. The main body 1 has a threaded hole. A bolt 4 that is threadedly connected to the threaded hole is installed in the stepped hole 301. In the aforementioned bucket, the stepped hole 301 can accommodate the stud and head of the bolt 4, thus protecting the bolt 4, reducing its wear, and facilitating its disassembly and assembly. The limiting block 3 is designed so that, during the installation of the wear-resistant plate 2, a small number of limiting blocks 3 are pre-installed. Through the mutual limiting action between the limiting block 3 and the welding joint 201, the wear-resistant plate 2 and the main body 1 are mutually positioned, facilitating subsequent welding of the wear-resistant plate 2. When welding the wear-resistant plate 2 at the welding joint 201, the corresponding limiting block 3 at the welding joint 201 needs to be removed. After welding, the limiting block 3 is reinstalled. Thus, the limiting block 3 protects the weld at the welding joint 201, reducing the direct impact of materials on the weld during bucket use, maintaining the weld's strength, and ultimately improving the connection between the wear-resistant plate 2 and the main body 1.

[0026] Further improvements include, for example Figure 4 and 5 As shown, the outer circumference of the limiting block 3 is provided with an annular groove 302 for accommodating the sealing ring 5. The limiting block 3 is sealed to the inner wall of the weld joint 201 through the sealing ring 5. The sealing ring 5 fills the gap between the limiting block 3 and the inner wall of the weld joint 201 to achieve sealing protection of the weld at the weld joint 201, thereby reducing corrosion of the weld and maintaining a long-term stable connection between the wear-resistant plate 2 and the main body 1.

[0027] Further improvements include, for example Figure 5 As shown, the limiting block 3 has a stepped portion 303 circumferentially provided on the side edge of the side adjacent to the main body 1. Specifically, the stepped portion 303 can avoid space for accommodating the weld at the welding joint 201, prevent mutual interference between the limiting block 3 and the weld, and facilitate the installation of the limiting block 3 inside the welding joint 201.

[0028] Further improvements include, for example Figure 3 and 5 As shown, elastic sealing gaskets 202 are provided on the side of the wear-resistant plate 2 adjacent to the main body 1 and on the side of the limiting block 3 adjacent to the main body 1. The sealing gaskets 202 are made of nitrile rubber. Nitrile rubber has good elasticity and wear resistance, which can buffer the impact received by the wear-resistant plate 2 to reduce the mutual wear between the wear-resistant plate 2 and the main body 1. In addition, the sealing gaskets 202 can fill the gap between the wear-resistant plate 2 and the main body 1, reduce the intrusion of water vapor and impurities, thereby reducing the corrosion and mutual wear between the wear-resistant plate 2 and the main body 1, and extending the service life of the bucket.

[0029] Further improvements include, for example Figure 1 As shown, the height of the limiting block 3 is less than the thickness of the wear-resistant plate 2. In the above-mentioned bucket, the height of the limiting block 3 is set so that the limiting block 3 can be completely retracted into the weld joint 201, making it difficult for larger materials to come into contact with the limiting block 3, thereby reducing the wear of the limiting block 3 and extending its service life.

[0030] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A wear-resistant excavator bucket, comprising a bucket body (1), characterized in that: A wear-resistant plate (2) is fixedly connected to the main body (1). Several weld joints (201) that penetrate the thickness of the plate are evenly distributed on the wear-resistant plate (2). The wear-resistant plate (2) is spliced ​​from multiple sub-plates (204). There is a gap between two adjacent sub-plates (204). The weld joint (201) is internally fitted with a limiting block (3), the limiting block (3) is detachably connected to the main body (1), the outer periphery of the limiting block (3) is provided with an annular groove (302) for accommodating the sealing ring (5), and the limiting block (3) is sealed to the inner wall of the weld joint (201) through the sealing ring (5).

2. The wear-resistant excavator bucket according to claim 1, characterized in that, The weld joint (201) has a waist-shaped groove structure.

3. The wear-resistant excavator bucket according to claim 1, characterized in that, The four edges of the sub-plate (204) and the four edges of the weld joint (201) are provided with bevels (203).

4. The wear-resistant excavator bucket according to claim 1, characterized in that, The limiting block (3) has a stepped hole (301) that extends through its thickness direction, and the main body (1) has a threaded hole. A bolt (4) that is threadedly connected to the threaded hole is provided in the stepped hole (301).

5. The wear-resistant excavator bucket according to claim 1, characterized in that, The limiting block (3) has a stepped portion (303) circumferentially provided on the side edge of the side adjacent to the main body (1).

6. The wear-resistant excavator bucket according to claim 1, characterized in that, The wear-resistant plate (2) is provided with elastic sealing gaskets (202) on the side of the main body (1) and the limiting block (3) is provided with elastic sealing gaskets (202) on the side of the main body (1).

7. The wear-resistant excavator bucket according to claim 1, characterized in that, The height of the limiting block (3) is less than the thickness of the wear-resistant plate (2).

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