High-wear-resistance guide wheel of mine excavator

Abstract

The utility model discloses a high-wear-resistance guide wheel of a mine excavator. The high-wear-resistance guide wheel comprises a wear-resistance guide wheel body. As the wear-resistant guide wheel and the flange arc ring are arranged as the outer edge part of the hub, the wear-resistant guide wheel and the flange arc ring are prone to friction loss with the caterpillar track, and when replacement work is carried out, the assembly bolt is firstly disassembled to remove connection and fixation between the assembly part and the assembly groove, and then the flange arc ring can be disassembled from the inner side of the annular groove to be replaced. Then a new flange arc ring is installed in the annular groove, the assembly part of the flange arc ring is inserted into the assembly groove, and finally the assembly bolt penetrates through the installation hole to lock and fix the assembly part into the assembly groove, so that the replacement operation of the flange arc ring is completed, the replacement operation is convenient, targeted replacement can be performed according to the loss degree, the cost can be effectively saved, and the production efficiency is improved. The tungsten carbide coatings are arranged on the two sides of the outer surface of the hub, and the tungsten carbide coatings have high hardness and wear resistance, so that the surface durability of the hub can be enhanced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of guide wheel technology, specifically a high wear-resistant guide wheel for mining excavators. Background Technology

[0002] The idler wheel is one of the core components of the tracked excavator's walking system. It ensures that the tracks rotate in the correct direction, preventing them from veering off course or falling off. It can also bear part of the weight of the tracks and chains, enhancing the machine's balance and stability in complex terrain.

[0003] Existing patent application number: 201820834335.7 An excavator guide wheel with a dustproof structure includes a guide wheel, a connecting block is provided on the guide wheel, one end of the connecting block is connected to a baffle, a safety plate is provided on the side of the baffle near the guide wheel, a sliding groove is opened on the baffle, a sliding nut is provided in the sliding groove of the baffle, and one end of the sliding nut is connected to the safety plate.

[0004] The aforementioned patent describes a functional structure for a guide wheel. In practical applications, the flange of the guide wheel is prone to contact with the side of the track link, causing wear and affecting the guiding stability of the track. However, localized wear necessitates replacing the entire guide wheel, which is cost-effective. Therefore, we propose a highly wear-resistant guide wheel for mining excavators to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high wear-resistant guide wheel for mining excavators to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high wear-resistant guide wheel for a mining excavator, comprising a wear-resistant guide wheel, the wear-resistant guide wheel comprising a hub, an annular groove, an assembly groove, a mounting hole, a flange arc ring, an assembly part, and an assembly bolt. The annular groove is centrally located on the outer surface of the hub. At least one assembly groove is equidistantly distributed on the bottom surface of the annular groove. The mounting hole is horizontally located on the left and right sides of the assembly groove. At least one flange arc ring is provided on the inner side of the annular groove, and adjacent flange arc rings are tightly connected end to end. An assembly part is centrally located on the inner surface of the flange arc ring. The assembly part is inserted into the inner side of the assembly groove, and the hole of the assembly part is aligned with the mounting hole. The assembly bolt passes horizontally through the mounting hole to lock and fix the assembly part inside the assembly groove.

[0007] Preferably, the outer surface of the wheel hub is provided with a tungsten carbide coating on both sides.

[0008] Preferably, the number of flange arc rings is 2 to 4, and the number of mounting slots is the same as the number of flange arc rings.

[0009] Preferably, the thickness of the assembly is 2-5 mm, and the assembly is integrally cast with the flange arc ring.

[0010] Preferably, the butt joint gap between the flanges is ≤2mm.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention features a wear-resistant guide wheel. The flange arc ring, being the outer edge of the hub, is prone to friction and wear with the track. To replace it, first remove the mounting bolts to disconnect the assembly from the mounting groove, allowing the flange arc ring to be removed from the inside of the annular groove. Then, install the new flange arc ring back into the annular groove, inserting the assembly into the mounting groove. Finally, pass the mounting bolts through the mounting holes to lock the assembly into the mounting groove, thus completing the flange arc ring replacement. The replacement operation is convenient and allows for targeted replacement based on the degree of wear, effectively saving costs.

[0013] This invention features a tungsten carbide coating on both sides of the outer surface of the wheel hub. The tungsten carbide coating has high hardness and wear resistance, which can enhance the surface durability of the wheel hub and thus extend its service life. Attached Figure Description

[0014] Figure 1 This is a front view cross-sectional structural diagram of the wear-resistant guide wheel in this utility model;

[0015] Figure 2 This is a front view cross-sectional structural diagram of the assembly groove in this utility model;

[0016] Figure 3 This is a front view structural diagram of the wheel hub in this utility model;

[0017] Figure 4 This is a schematic diagram of the left-side structure of the wear-resistant guide wheel in this utility model;

[0018] Figure 5 This is a schematic diagram of the left-side structure of the flanged arc ring in this utility model.

[0019] In the diagram: wear-resistant guide wheel-1, hub-11, annular groove-12, assembly groove-13, mounting hole-14, flange arc ring-15, assembly parts-16, assembly bolt-17, tungsten carbide coating-18. Detailed Implementation

[0020] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0021] Please see Figure 1-5This utility model provides a high wear-resistant guide wheel for a mining excavator, including a wear-resistant guide wheel 1. The wear-resistant guide wheel 1 includes a hub 11, an annular groove 12, an assembly groove 13, a mounting hole 14, a flange arc ring 15, an assembly part 16, and an assembly bolt 17. The annular groove 12 is centrally located on the outer surface of the hub 11. At least two assembly grooves 13 are evenly distributed on the bottom surface of the annular groove 12. The mounting holes 14 are horizontally connected to the wheel 11 through the left and right walls of the assembly grooves 13. On the left and right sides of the hub 11, there are no less than two flange arc rings 15 on the inner side of the annular groove 12, and the adjacent flange arc rings 15 are closely connected end to end. An assembly 16 is provided in the center of the inner surface of the flange arc ring 15. The assembly 16 is inserted into the inner side of the assembly groove 13, and the hole of the assembly 16 is aligned with the mounting hole 14. The assembly bolt 17 passes horizontally through the mounting hole 14 to lock and fix the assembly 16 inside the assembly groove 13, thereby realizing the assembly and fixation of the flange arc ring 15 and the hub 11.

[0022] To further explain, tungsten carbide coatings 18 are provided on both sides of the outer surface of the wheel hub 11. The tungsten carbide coating 18 has high hardness and wear resistance, which can enhance the surface durability of the wheel hub 11 and thus extend its service life.

[0023] To further explain, the number of flange arc rings 15 is 2 to 4, and the number of mounting slots 13 is the same as the number of flange arc rings 15. The flange arc rings 15 can be replaced according to the degree of wear, thus better controlling the replacement cost.

[0024] To further explain, the thickness of the fitting 16 is 2-5mm, and the fitting 16 is integrally cast with the flange arc ring 15 to ensure the installation strength of the flange arc ring 15.

[0025] To further clarify, the butt joint gap between the flanges 15 is ≤2mm.

[0026] The working principle is as follows:

[0027] First, by setting a wear-resistant guide wheel 1, and by setting a tungsten carbide coating 18 on both sides of the outer surface of the hub 11, the tungsten carbide coating 18 has high hardness and wear resistance, which can enhance the surface durability of the hub 11 and thus extend its service life.

[0028] Secondly, in practical applications, the flange arc ring 15, as the outer edge of the hub 11, is prone to friction and wear with the track. When replacing it, first remove the mounting bolt 17 to disconnect the fitting 16 from the mounting groove 13, and then remove the flange arc ring 15 from the inside of the annular groove 12 for replacement. Then, install the new flange arc ring 15 back into the annular groove 12, insert the fitting 16 into the mounting groove 13, and finally pass the mounting bolt 17 through the mounting hole 14 to lock the fitting 16 into the mounting groove 13, thus completing the replacement of the flange arc ring 15. The replacement operation is convenient and can be targeted according to the degree of wear, which can effectively save costs.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high wear guide wheel for a mine excavator, characterised in that: The application discloses a wear-resistant guide wheel (1) which comprises a wheel hub (11), an annular groove (12), an assembly groove (13), a mounting hole (14), a flange arc ring (15), an assembly part (16) and an assembly bolt (17), the outer surface of the wheel hub (11) is provided with the annular groove (12) in the middle, the bottom surface of the annular groove (12) is provided with not less than two assembly grooves (13) which are equidistantly distributed, the left and right wall surfaces of the assembly groove (13) are provided with the mounting hole (14) in penetration, the mounting hole (14) penetrates the left and right sides of the wheel hub (11) horizontally, the inner side of the annular groove (12) is provided with not less than two flange arc rings (15), and the adjacent flange arc rings (15) are closely connected in a head-to-tail mode, the inner surface of the flange arc ring (15) is provided with the assembly part (16) in the middle, the assembly part (16) is inserted into the inner side of the assembly groove (13), and the hole position of the assembly part (16) is aligned with the mounting hole (14), and the assembly bolt (17) is horizontally penetrated through the mounting hole (14) to lock and fix the assembly part (16) in the assembly groove (13).

2. A high wear guide wheel for a mine excavator as claimed in claim 1, characterised in that: The outer surface of the wheel hub (11) is provided with a tungsten carbide coating (18) on both sides.

3. A high wear guide wheel for a mine excavator as claimed in claim 1, characterised in that: The number of the flange arc rings (15) is 2-4, and the number of the assembly grooves (13) is consistent with that of the flange arc rings (15).

4. The high abrasion resistant guide wheel for a mine excavator of claim 1, wherein: The thickness of the assembly part (16) is 2-5 mm, and the assembly part (16) is integrally cast with the flange arc ring (15).

5. The high abrasion resistant guide wheel of a mine excavator according to claim 1, wherein: The butt joint gap between the flange arc rings (15) is less than or equal to 2 mm.

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