A composite high-strength track shoe for excavators

Abstract

The utility model discloses a kind of excavator composite high-strength track shoe, including track shoe body, track shoe body includes base plate and alloy wear layer, base plate and alloy wear layer are all integrally forged into shape structure, several high-hardness self-shielded alloy welding wires are welded on the top of base plate, alloy wear layer is combined to the top of base plate by high-hardness self-shielded alloy welding wire and presents up-down composite structure.The utility model track shoe body uses base plate plus alloy wear layer composite structure, base plate is forged from manganese steel, with good strength and toughness, can withstand the load of excavator, ensure overall strength;Alloy wear layer is forged from chromium alloy, its thickness is 1 / 2 of base plate, with very good wear resistance and impact resistance, alloy wear layer is contacted with ground and grabs ground, resists wear, improves wear resistance, prolongs track shoe body service life;There is no gap in the periphery of base plate and alloy wear layer, can prevent dirt and other impurities from sticking, suitable for application in excavator track shoe manufacturing.

Description

Technical Field

[0001] This utility model relates to the field of excavator equipment manufacturing technology, and more specifically to a composite high-strength track plate for excavators. Background Technology

[0002] Track shoes are chassis components of construction machinery, commonly used in excavators. They are continuous plate-like structures installed beneath the track frame, responsible for supporting the vehicle's weight and transmitting power. Existing track shoes are typically made from a single type of steel. In practical applications, the track shoes are in contact with the ground under complex conditions, and they cannot effectively buffer the pressure, resulting in poor pressure resistance. This makes them prone to severe wear under high external pressure, affecting their actual service life. Frequent replacement of track shoes also reduces work efficiency, indirectly impacting the construction cycle and causing inconvenience. To address this, the inventor proposes a composite high-strength track shoe for excavators. The track shoe is a composite of a base plate and a wear-resistant plate welded together. The wear-resistant plate possesses high strength and wear resistance, can withstand high pressure, extends the service life of the track shoe itself, and improves construction efficiency and safety.

[0003] To improve the pressure and wear resistance of crane track plates, increase their strength, and prevent them from bending and deforming due to impact during grounding, thus preventing malfunctions, Chinese Patent (Authorization Announcement No.: CN214985723U) discloses a high-strength track plate for tracked cranes. This utility model includes a track plate body, with a first connecting block and a second connecting block at each end of the track plate body, the first and second connecting blocks having complementary structures. A slot is evenly formed on one side of the track plate body, and a locking block engages within the slot. A first reinforcing rib and a second reinforcing rib are symmetrically connected to the side of the track plate body with the slot. The track plate body also has a first protective plate, a second protective plate, and a third protective plate. This utility model, by setting reinforcing ribs at the upper end of the track plate and placing rubber protective plates between the reinforcing ribs, can strengthen the connection between the reinforcing ribs and the track plate, and effectively prevent the reinforcing ribs from bending during long-term grounding and travel, thereby improving the strength of the track plate.

[0004] This solution still has some shortcomings in application. Since the protective plates are added to the track plates later, their stability needs improvement. When the track plates are in contact with the ground, the complex ground conditions make them prone to detachment. If detachment occurs, the excavator must be stopped for repair, which is time-consuming and labor-intensive. Furthermore, the protective plates and reinforcing ribs are not integrally molded, which can lead to continuous wear between them. In muddy conditions, the gaps between the protective plates and reinforcing ribs can easily trap mud, potentially affecting the normal operation of the track plates. Therefore, the structure of the track plates needs to be improved to overcome the aforementioned limitations, making them more suitable for the requirements and more practical. Utility Model Content

[0005] The present invention discloses a composite high-strength track plate for excavators, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A composite high-strength track plate for excavators includes a track plate body, which comprises a base plate and an alloy wear-resistant layer. Both the base plate and the alloy wear-resistant layer are integrally forged. Several high-hardness self-protected alloy welding wires are welded to the top of the base plate using an automatic welding process. The alloy wear-resistant layer is composited to the top of the base plate through the high-hardness self-protected alloy welding wires to form an upper and lower composite structure. Several wear-resistant protrusions are provided on the outer surface of the alloy wear-resistant layer.

[0008] Furthermore, the thickness of the alloy wear-resistant layer is 1 / 2 of the thickness of the substrate.

[0009] Furthermore, the substrate is forged from high-manganese steel.

[0010] Furthermore, the front and rear sides of the track plate body have an arc-shaped structure with the ends joined together.

[0011] Furthermore, the track plate body has a waist hole in the middle, bolt holes on both sides of the waist hole, and a connecting slot on the front side of the track plate body.

[0012] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0013] This invention utilizes a composite structure of a base plate and an alloy wear-resistant layer for the track plate body. The base plate is forged from manganese steel, possessing excellent strength and toughness, capable of withstanding the excavator's load and ensuring the overall strength of the track plate body. Next, the alloy wear-resistant layer is forged from chromium alloy, with a thickness half that of the base plate, exhibiting excellent wear resistance and impact resistance. This alloy wear-resistant layer provides grip on the ground, enabling it to cope with complex ground conditions, resist wear, and improve the wear resistance of the track plate, thereby extending its service life. Simultaneously, the alloy wear-resistant layer also provides rust and corrosion resistance. Finally, the base plate and alloy wear-resistant layer are composited using specialized equipment and an automated welding process. This rapid and stable composite process leaves no gaps around the base plate and alloy wear-resistant layer, preventing the adhesion of dirt and other impurities. This design is highly suitable for excavator track plate manufacturing. This invention features a novel structure, high strength, and excellent wear resistance, making it ideal for excavator use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a side view of the structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the composite structure of this utility model. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0018] like Figures 1 to 3 As shown, a composite high-strength track plate for excavators includes a track plate body 1, which includes a base plate 2 and an alloy wear-resistant layer 3. Both the base plate 1 and the alloy wear-resistant layer 3 are integrally forged structures. Several high-hardness self-protected alloy welding wires 4 are welded to the top of the base plate 2 by an automatic welding process. The alloy wear-resistant layer 3 is composited to the top of the base plate 2 by the high-hardness self-protected alloy welding wires 4 to form an upper and lower composite structure. Several wear-resistant protrusions 5 are provided on the outer surface of the alloy wear-resistant layer 3.

[0019] Furthermore, the thickness of the alloy wear-resistant layer 3 is half the thickness of the substrate 2.

[0020] Furthermore, the substrate 2 is forged from high-manganese steel.

[0021] Furthermore, the front and rear sides of the track plate body 1 form an arc-shaped structure 6 with the ends joined together.

[0022] Furthermore, the track plate body 1 has a waist hole 7 in the middle, bolt holes 8 on both sides of the waist hole 7, and a connecting slot 9 on the front side of the track plate body 1.

[0023] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0024] This invention utilizes a composite structure of a base plate and an alloy wear-resistant layer for the track plate body. The base plate is forged from manganese steel, possessing excellent strength and toughness, capable of withstanding the excavator's load and ensuring the overall strength of the track plate body. Next, the alloy wear-resistant layer is forged from chromium alloy, with a thickness half that of the base plate, exhibiting excellent wear resistance and impact resistance. This alloy wear-resistant layer provides grip on the ground, enabling it to cope with complex ground conditions, resist wear, and improve the wear resistance of the track plate, thereby extending its service life. Simultaneously, the alloy wear-resistant layer also provides rust and corrosion resistance. Finally, the base plate and alloy wear-resistant layer are composited using specialized equipment and an automated welding process. This rapid and stable composite process leaves no gaps around the base plate and alloy wear-resistant layer, preventing the adhesion of dirt and other impurities. This design is highly suitable for excavator track plate manufacturing. This invention features a novel structure, high strength, and excellent wear resistance, making it ideal for excavator use.

[0025] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A composite high-strength track pad for excavators, characterized in that: The system includes a track plate body, which comprises a base plate and an alloy wear-resistant layer. Both the base plate and the alloy wear-resistant layer are integrally forged structures. Several high-hardness self-protected alloy welding wires are welded to the top of the base plate through an automatic welding process. The alloy wear-resistant layer is composited to the top of the base plate through the high-hardness self-protected alloy welding wires to form an upper and lower composite structure. Several wear-resistant protrusions are provided on the outer surface of the alloy wear-resistant layer.

2. The high-strength composite track pad for excavators according to claim 1, characterized in that: The thickness of the alloy wear-resistant layer is 1 / 2 of the thickness of the substrate.

3. The high-strength composite track pad for excavators according to claim 1, characterized in that: The substrate is forged from high manganese steel.

4. The high-strength composite track pad for excavators according to claim 1, characterized in that: The front and rear sides of the track plate body have an arc-shaped structure with the ends joined together.

5. The high-strength composite track pad for excavators according to claim 1, characterized in that: The track plate body has a waist hole in the middle, bolt holes on both sides of the waist hole, and a connecting slot on the front side of the track plate body.

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