Wear-resistant rubber track iron tooth

Abstract

A wear-resistant rubber track iron tooth comprises a gap bridge, side wings, limiting teeth and limiting feet, the side wings are arranged at the two ends of the gap bridge, the limiting teeth protruding out of the top of the gap bridge are arranged between the gap bridge and the side wings at the two ends, the limiting feet are arranged at the front end and the rear end of the gap bridge, and a detachable wear-resistant assembly is arranged on the bottom face jointly formed by the gap bridge and the two side wings. The wear-resistant assembly comprises an outer layer, a middle layer and an inner layer, a plurality of reinforcing pieces distributed at equal intervals are arranged on the inner surface of the outer layer, the ends, not arranged on the inner surface of the outer layer, of the reinforcing pieces are arranged on the inner surface of the inner layer, a filling space is formed through interval distribution of the reinforcing pieces, and the middle layer is arranged in the filling space. The outer surface of the outer layer is coated with a wear-resistant coating, and the outer surface of the inner layer is coated with an anti-corrosion coating. The track iron tooth has the advantages that the bottom face of the track iron tooth is prevented from being abraded through the abrasion-resistant assembly, the abrasion resistance of the abrasion-resistant assembly is effectively improved through the abrasion-resistant coating, and the corrosion resistance of the track iron tooth is effectively improved through the corrosion-resistant coating.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler iron teeth, in particular to a wear-resistant rubber crawler iron tooth. Background Art

[0002] In a rubber crawler in the form of a circulating belt formed of a rubber elastomer, steel wires serving as a circumferential reinforcing skeleton are embedded, and iron teeth are embedded at regular intervals. The iron teeth are deeply buried and bonded inside the rubber crawler, acting as a support skeleton, and are metal components that directly mesh with the machine drive wheel to transmit power and support the weight of the machine.

[0003] Publication (Announcement) No.: CN218021910 discloses a durable rubber crawler iron tooth, including a main body and a reinforcing rib. At the lower end of the reinforcing rib, there is a clamping plate for connecting with the main body to limit its position. At the upper end of the main body, there is a limiting groove for clamping connection with the clamping plate. On one side inside the limiting groove, there is a clamping block for pressing the clamping plate tightly. At the lower end of the main body, there is a detachable bottom plate. On both sides of the bottom plate, there are convex plates for connecting with the main body. Through grooves are provided inside the convex plates. On both sides at the lower end of the main body, there are grooves for sliding connection with the convex plates. At the upper ends on both sides of the bottom plate, there are rubber clamping strips for limiting the two ends of the bottom plate to prevent loosening. The bottom plate of this crawler iron tooth is used as a protection component to prevent wear of the crawler iron tooth itself, that is, wear occurs on the bottom plate, and it can be replaced after wearing to a certain extent. However, there is a defect that no anti-wear structure is provided on the bottom plate, resulting in a relatively fast wear rate, thus increasing the maintenance frequency. Moreover, each maintenance is not only for one crawler iron tooth, and the high-frequency replacement increases the workload and cost. Content of the Utility Model

[0004] The utility model aims to solve the above-mentioned drawbacks of the prior art and provides a wear-resistant rubber crawler iron tooth to solve the above problems.

[0005] The technical solution adopted by the utility model to solve its technical problems: This wear-resistant rubber crawler iron tooth includes a cross bridge, side wings, limiting teeth, and limiting feet. At both ends of the cross bridge, there are side wings. Between the cross bridge and the side wings at both ends, there are limiting teeth protruding above the top of the cross bridge. At the front and rear ends of the cross bridge, there are limiting feet. On the bottom surface formed by the cross bridge and the two side wings together, there is a detachable wear-resistant component. The wear-resistant component includes an outer layer, an intermediate layer, and an inner layer. On the inner surface of the outer layer, there are a plurality of equally spaced reinforcing pieces. One end of the reinforcing piece that is not provided on the inner surface of the outer layer is provided on the inner surface of the inner layer, and a filling space is formed by the spaced distribution of the reinforcing pieces. The intermediate layer is arranged in the filling space. A wear-resistant coating is covered on the outer surface of the outer layer, and an anti-corrosion coating is covered on the outer surface of the inner layer.

[0006] Further improvement: The wear-resistant coating includes a wear-resistant part and a protection part. The protection part is arranged on the inner surface of the outer layer, and the wear-resistant layer is arranged on the protection part.

[0007] Further improvement: The protection part is a metal aluminum sheet.

[0008] Further improvement: The wear-resistant part is silicon carbide coating.

[0009] Further improvement: The anti-corrosion coating is epoxy resin.

[0010] Further improvement: The middle layer is foam cotton.

[0011] Further improvement: Two symmetrically distributed slots are arranged on the bottom surface formed by the bridge and the two side wings, and rubber strips that match the number and position of the slots and are inserted into the slots are arranged on the inner layer.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The present utility model uses a wear-resistant component to prevent the bottom surface of the crawler iron teeth from being worn. The wear-resistant coating effectively improves the wear resistance of the wear-resistant component, and the anti-corrosion coating effectively improves the anti-corrosion performance of the wear-resistant coating, thereby extending the service life of the crawler iron teeth. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a full-sectional structural diagram of the wear-resistant component, wear-resistant coating, and anti-corrosion coating of the present utility model;

[0016] Figure 3 is an exploded structural diagram of the crawler iron teeth and the wear-resistant component of the present utility model, used to show the slots and rubber strips. Detailed Embodiments

[0017] The present utility model will be further described below with reference to the drawings:

[0018] Referring to the attached drawings: This wear-resistant rubber crawler iron tooth includes a cross-bridge 11, side wings 12, limit teeth 13, and limit feet 14. Side wings 12 are provided at both ends of the cross-bridge 11. Limit teeth 13 protruding above the top of the cross-bridge 11 are provided between the cross-bridge 11 and the side wings 12 at both ends. Limit feet 14 are provided at the front and rear ends of the cross-bridge 11. A detachable wear-resistant component 3 is provided on the bottom surface formed by the cross-bridge 11 and the two side wings 12. The wear-resistant component 3 includes an outer layer 31, an intermediate layer 32, and an inner layer 33. A plurality of equally spaced reinforcing pieces 31-1 are provided on the inner surface of the outer layer 31. One end of the reinforcing piece 31-1 that is not provided on the inner surface of the outer layer 31 is provided on the inner surface of the inner layer 33, and a filling space 31-11 is formed by the spaced distribution of the reinforcing pieces 31-1. The intermediate layer 32 is provided in the filling space 31-11. A wear-resistant coating 4 is covered on the outer surface of the outer layer 31, and an anti-corrosion coating 5 is covered on the outer surface of the inner layer 33. The principle of the present utility model is that the inner layer 33 is provided on the bottom surface formed by the cross-bridge 11 and the two side wings 12, the outer layer 31 is used to contact the ground, the intermediate layer 32 is used to improve the performance of the wear-resistant component 3. On the one hand, the reinforcing piece 31-1 is used to connect the inner layer 33 and the outer layer 31, and on the other hand, it can form a filling space 31-11 in which the intermediate layer 32 is placed, which also facilitates the setting of the intermediate layer 32. The wear-resistant coating 4 effectively improves the wear resistance of the wear-resistant component 3, that is, the wear-resistant coating 4 is used to contact the ground, and the wear-resistant coating 4 uses its own wear-resistant property to reduce wear, and only after the wear-resistant coating 4 is worn, the outer layer 31 continues to be worn. When the outer layer 31 is worn to an unusable state, it is replaced. The anti-corrosion coating 5 effectively improves the anti-corrosion performance of the crawler iron tooth, that is, when the crawler operates in muddy land or sewage, it can reduce the corrosion of the crawler iron tooth, thereby extending the service life of the crawler iron tooth.

[0019] The wear-resistant coating 4 includes a wear-resistant part 41 and a protection part 42. The protection part 42 is provided on the outer surface of the outer layer 31, and the wear-resistant layer 41 is provided on the protection part 42. Such a setting makes the wear-resistant coating 4 the first to be worn when the wear-resistant component 3 is in use, that is, after the wear-resistant part 41 is worn, the protection part 42 continues to be worn until both are completely worn and then the outer layer 31 continues to be worn, thereby increasing the service life of the wear-resistant component 3.

[0020] The protection part 42 is an interwoven aluminum sheet, and the interwoven method increases the overall thickness and is welded on the outer surface of the outer layer 31, thereby extending its service life.

[0021] The wear-resistant part 41 is made of silicon carbide coating. Silicon carbide coating is a material with extremely high hardness and has good wear resistance. This enables its application in coatings to significantly enhance the wear resistance of the coating. By uniformly dispersing silicon carbide particles in the coating matrix, a structure similar to "abrasives" can be formed. This structure provides additional anti-wear protection during friction and wear processes, reducing the wear of the coating and surface damage, thereby extending the service life of the coating.

[0022] The anti-corrosion coating 5 is made of epoxy resin, which is mainly reflected in the following aspects: 1. Excellent adhesion: Epoxy resin can firmly adhere to the metal surface, effectively extending the service life of metal materials; Chemical corrosion resistance: Epoxy resin has excellent acid, alkali, and solvent resistance, and can maintain the integrity of the coating under complex working conditions; 3. High hardness and durability: The epoxy resin anti-corrosion coating has high hardness and good durability, and will not easily peel off and break, effectively delaying the development of matrix corrosion; This can reduce the corrosion of the crawler iron teeth and also improve the service life of the crawler iron teeth.

[0023] The intermediate layer 32 is made of foam cotton. Such a setting enables the crawler iron teeth to have a good heat preservation effect and can avoid being frozen in winter.

[0024] Two symmetrically distributed slots 2 are provided on the bottom surface formed by the cross-bridge 11 and the two side wings 12. Rubber strips 6 that match the number and position of the slots 2 and are inserted into the slots 2 are provided on the inner layer 33. Such a setting enables the anti-wear component 3 to be stably set on the crawler iron teeth. The rubber strips 6 have an adaptive morphological change effect. The volume before deformation is larger than the insertion space volume provided by the slots 2, but after entering, it can adapt to the insertion space volume provided by the slots 2 by deforming. And due to the spatial constraint after deformation, the rubber strips 6 can continuously generate self-recovery resistance, thereby enabling the rubber strips 6 to be stably set in the slots 2.

[0025] Although the present utility model has been illustrated and described by referring to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details can be made within the scope of the claims.

Claims

1. A wear-resistant rubber track iron tooth, comprising a bridge (11), side wings (12), a limiting tooth (13) and a limiting foot (14), wherein the two ends of the bridge (11) are provided with side wings (12), and the limiting teeth (13) protruding from the top of the bridge (11) are provided between the bridge (11) and the side wings (12) at both ends, and the front and rear ends of the bridge (11) are provided with limiting feet (14), characterized in that: A detachable wear-resistant component (3) is arranged on the bottom surface jointly formed by the bridge (11) and the two side wings (12), and the wear-resistant component (3) includes an outer layer (31), an intermediate layer (32), and an inner layer (33). A plurality of equally spaced reinforcing sheets (31-1) are arranged on the inner surface of the outer layer (31), and one end of the reinforcing sheet (31-1) that is not arranged on the inner surface of the outer layer (31) is arranged on the inner surface of the inner layer (33), and a filling space (31-11) is formed by the spaced distribution of the reinforcing sheets (31-1), and the intermediate layer (32) is arranged in the filling space (31-11). The outer surface of the outer layer (31) is covered with a wear-resistant coating (4), and the outer surface of the inner layer (33) is covered with an anti-corrosion coating (5).

2. The wear-resistant rubber track tooth according to claim 1, characterized in that: The wear-resistant coating (4) comprises a wear-resistant portion (41) and a protective portion (42); the protective portion (42) is arranged on the outer surface of the outer layer (31); and the wear-resistant portion (41) is arranged on the protective portion (42).

3. The wear-resistant rubber track teeth according to claim 2 are characterized in that: The protection part (42) is a metal aluminum sheet.

4. The wear-resistant rubber track teeth according to claim 2, characterized in that: The wear-resistant portion (41) is a silicon carbide coating.

5. The wear-resistant rubber track tooth according to claim 1, characterized in that: The anti-corrosion coating (5) is epoxy resin.

6. The wear-resistant rubber track teeth according to claim 1, characterized in that: The middle layer (32) is foam cotton.

7. The wear-resistant rubber track tooth according to claim 1, characterized in that: Two symmetrically distributed slots (2) are provided on the bottom surface jointly formed by the bridge (11) and the two side wings (12), and rubber clips (6) are provided on the inner layer (33) and match the number and position of the slots (2) and are inserted into the slots (2).

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