Wear-resistant crane track shoe

By designing an interlocking tooth and sleeve structure on the crane track plates, combined with a detachable protective plate assembly, the problems of easy damage and inconvenient maintenance of the track plates are solved, achieving higher wear resistance and convenient maintenance.

CN224676236UActive Publication Date: 2026-08-25QUANZHOU YONGJIN MACHINERY FITTINGS
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Patent Information

Application Number
CN202521953419.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-11
Publication Date
2026-08-25
Estimated Expiration
2035-09-11

AI Technical Summary

Technical Problem

Existing crane track shoes are prone to damage from ground friction during long-term use, and the protective plates are usually a one-piece structure, which leads to waste of resources and inconvenience in maintenance and replacement.

Method used

A wear-resistant track plate was designed, which adopts an interlaced connecting tooth and sleeve structure, combined with a detachable protective plate assembly, including protective plate one and protective plate two. The assembly is stably connected by reserved grooves, positioning grooves and positioning pins, and the plate body with a hollow structure is fixed with bolts and nuts, which reduces wear and facilitates maintenance.

Benefits of technology

It improves the wear resistance of the track plates, avoids the ellipticing of the pin holes, facilitates the replacement of protective plates, and reduces maintenance costs and resource waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for engineering machinery parts field provides a kind of wear-resistant crane track shoe, comprising: track shoe body, including board body, its both sides are respectively position staggered arrangement multiple connecting teeth one and multiple connecting teeth two, its inside fixed mounting has casing, the casing is rotatably installed with pin rod;Protective component, fixed mounting on board body, for the protection of track shoe body, including guard board one and guard board two, by the protective component of setting, play the direct protective effect to track shoe body, compared with traditional steel structure track shoe, it has stronger wear resistance, the casing of setting, play the reinforcing effect to the pin hole in connecting tooth one and connecting tooth two, effectively avoid pin hole ovalization, also facilitate the activity performance of pin rod, and based on the detachable design of guard board one and guard board two, it is convenient to carry out targeted replacement after the wear of protective component, without removing track shoe body, it is more convenient and fast to maintain.
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Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery parts, and in particular relates to a wear-resistant crane track plate. Background Technology

[0002] Track shoes are the core components of the chassis system of tracked construction machinery (such as excavators, bulldozers, and tracked cranes). They are connected by pins to form a ring track, which works in conjunction with the drive wheels, guide wheels, and track rollers to enable the machine to move, steer, and support loads. Their design directly affects the equipment's traction, stability, and terrain adaptability.

[0003] Existing crane tracks often use steel track plates, which are susceptible to damage from ground friction over prolonged use. Improper operation (such as high-speed turning) can also lead to elliptical pin holes and elongated pitch, resulting in abnormal wear of the drive wheels. Conventional wear-resistant methods typically involve installing protective plates on the track plates to replace them in direct contact with the ground, reducing damage. However, existing protective plates are usually one-piece structures, requiring complete replacement during maintenance, resulting in wasted resources. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a wear-resistant crane track plate, which aims to solve the problems mentioned in the background art.

[0005] This utility model embodiment is implemented as follows: a wear-resistant crane track plate includes:

[0006] The track plate body includes a plate body, in which a tooth groove adapted to the teeth of the crane track drive wheel is fixedly opened in the middle. Multiple connecting teeth one and multiple connecting teeth two are staggered on both sides. A protective sleeve is fixedly installed in the connecting teeth one and connecting teeth two. A pin is rotatably installed in the protective sleeve for connecting multiple track plate bodies.

[0007] The protective assembly is fixedly installed on the plate body for protecting the track plate body. It includes a protective plate one and a protective plate two. A reserved groove adapted to the protective plate two is fixedly opened on the protective plate one at the position corresponding to the protective plate two. The protective plate two passes through the reserved groove and extends out of the top of the protective plate one.

[0008] As a further embodiment of this utility model: a spur is fixedly provided on the plate body, and the second protective plate is fastened to the spur through a reserved slot.

[0009] As a further embodiment of this utility model: a positioning groove 1 is fixedly provided on the side of the spur, and a positioning groove 2 is fixedly provided on the inner side of the protective plate 2 at the position corresponding to the positioning groove 1. The positioning groove 1 and the positioning groove 2 together form a positioning pin groove, in which a positioning pin is movably fitted for the clamping and fixing of the protective plate 2 and ( ).

[0010] As a further embodiment of this utility model: a stop block is fixedly provided on both sides of the reserved groove at the positions corresponding to the two ends of the second protective plate, and its side is attached to the second protective plate and the spike, which is used to limit the second protective plate and the spike.

[0011] As a further embodiment of this utility model: the protective component also includes a mounting plate and bolts and nuts, the bottom of the plate body is configured with a hollow structure, the mounting plate is located at the bottom of the plate body, and is fixedly installed on both sides of the plate body by bolts and nuts.

[0012] As a further embodiment of this utility model: multiple bolt grooves are fixedly provided on the protective plate at the positions corresponding to the bolts and nuts, and the bolt heads of the bolts and nuts are recessed into the bolt grooves.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model provides a wear-resistant crane track plate. Through the setting of protective components, it plays a direct protective role in protecting the track plate body. Compared with traditional steel structure track plates, it has stronger wear resistance. The set of protective sleeves plays a reinforcing role in the inner pin holes of connecting tooth one and connecting tooth two, effectively preventing the pin holes from becoming elliptical, and also facilitating the movement of the pin rod. Based on the detachable design of protective plate one and protective plate two, it is convenient to replace the protective components after they wear out, without having to remove the track plate body, making maintenance more convenient and quick. Attached Figure Description

[0015] Figure 1 A three-dimensional structure of a wear-resistant crane track plate provided in this embodiment of the utility model. Figure 1 ;

[0016] Figure 2 A three-dimensional structure of a wear-resistant crane track plate provided in this embodiment of the utility model. Figure 2 ;

[0017] Figure 3 A partial cross-sectional view of a wear-resistant crane track plate provided in this embodiment of the utility model. Figure 1 ;

[0018] Figure 4 A partial cross-sectional view of a wear-resistant crane track plate provided in this embodiment of the utility model. Figure 2 ;

[0019] Figure 5 An exploded view of the structure of a wear-resistant crane track plate provided in an embodiment of this utility model.

[0020] In the attached diagram: 1. Track plate body; 11. Plate body; 111. Tooth groove; 112. Track spike; 1121. Positioning groove one; 12. Connecting tooth one; 13. Connecting tooth two; 14. Protective sleeve; 15. Pin; 2. Protective assembly; 21. Protective plate one; 211. Reserved groove; 212. Stop block; 213. Bolt groove; 22. Protective plate two; 221. Positioning groove two; 23. Mounting plate; 24. Bolt and nut; 25. Positioning pin. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] Please see Figures 1 to 5 This utility model embodiment provides a wear-resistant crane track plate, comprising:

[0024] The track plate body 1 includes a plate body 11, in which a tooth groove 111 adapted to the teeth of the crane track drive wheel is fixedly opened in the middle. Multiple connecting teeth 12 and multiple connecting teeth 2 13 are staggered on both sides. A protective sleeve 14 is fixedly installed in the connecting teeth 12 and connecting teeth 2 13. A pin 15 is rotatably installed in the protective sleeve 14 for connecting multiple track plate bodies 1.

[0025] The protective component 2 is fixedly installed on the plate body 11 and is used to protect the track plate body 1. It includes a first protective plate 21 and a second protective plate 22. The first protective plate 21 has a reserved groove 211 that is adapted to the second protective plate 22 at the position corresponding to the second protective plate 22. The second protective plate 22 passes through the reserved groove 211 and extends out of the top of the first protective plate 21.

[0026] In practical application, this embodiment uses staggered connecting teeth 12 and connecting teeth 13 in conjunction with pins 15 to hinge the track plate body 1 to the track plate body 1. Multiple track plate bodies 1 are connected to form a crane track. With the help of protective plates 21 and 22 installed on the plate body 11, the track plate body 1 is protected.

[0027] In this embodiment, the protective component 2 provides direct protection for the track plate body 1. Compared with traditional steel structure track plates, it has stronger wear resistance. The protective sleeve 14 reinforces the inner pin holes of connecting tooth 12 and connecting tooth 23, effectively preventing the pin holes from becoming elliptical. It also facilitates the movement of the pin rod 15. Based on the detachable design of protective plate 11 and protective plate 22, it is convenient to replace the protective component 2 after it wears out without removing the track plate body 1, making maintenance more convenient and faster.

[0028] In one embodiment, based on the difference in position between protective plate 1 21 and protective plate 22, protective plate 22 is usually more susceptible to wear. In actual use, more wear-resistant materials can be selectively used for protective plate 22, making the track plate setting more flexible. By configuring different materials for protective plate 1 21 and protective plate 22, the cost can also be reduced indirectly.

[0029] Please see Figure 1 , Figures 3 to 5 In a preferred embodiment of the present invention, a spike 112 is fixedly provided on the plate body 11, and the second protective plate 22 is fastened to the spike 112 through a reserved groove 211.

[0030] In practical application, the second protective plate 22 covers the outside of the spike 112, thus protecting the spike 112. The reserved groove 211 allows the second protective plate 22 to be pressed onto the plate body 11 during the installation and fixing of the first protective plate 21, thereby achieving the connection and fixation between the second protective plate 22 and the spike 112.

[0031] Please see Figures 3 to 5 As another preferred embodiment of the present invention, the side of the spur 112 is fixedly provided with a positioning groove 1121, and the inner side of the second protective plate 22 is fixedly provided with a positioning groove 221 corresponding to the position of the first positioning groove 1121. The first positioning groove 1121 and the second positioning groove 221 together form a positioning pin groove, in which a positioning pin 25 is movably fitted for the fixing of the second protective plate 22 and (121).

[0032] Furthermore, a stop block 212 is fixedly provided on both sides of the reserved groove 211 at the positions corresponding to the two ends of the second protective plate 22, and its side is attached to the second protective plate 22 and the spike 112 to limit the second protective plate 22 and the spike 112.

[0033] In practical application, this embodiment uses the positioning pin 25 to cooperate with the positioning groove 1121 and the positioning groove 221 to further install and fix the protective plate 22 and (121), thereby improving the installation stability of the protective plate 22. In cooperation with the stop block 212, it fits the two ends of the protective plate 22 and the spike 112, thereby limiting the protective plate 22 and the spike 112, and further ensuring the connection effect of the positioning pin 25 on the protective plate 22 and the spike 112.

[0034] Please see Figures 2 to 5 In another preferred embodiment of the present invention, the protective component 2 further includes a mounting plate 23 and bolts and nuts 24. The bottom of the plate body 11 is configured with a hollow structure. The mounting plate 23 is located at the bottom of the plate body 11 and is fixedly installed on both sides of the plate body 11 by connecting and fixing it to the protective plate 21 through bolts and nuts 24.

[0035] In practical applications, the bolts and nuts 24 can be used to connect and fix the protective plate 21 and the plate body 11. In conjunction with the mounting plate 23, the tension of the bolts and nuts 24 is dispersed, which effectively avoids damage to the plate body 11 caused by the bolt connection and indirectly improves the stability of the connection and fixation of the protective plate 21.

[0036] Please see Figures 2 to 5 In another preferred embodiment of this utility model, a plurality of bolt grooves 213 are fixedly provided on the protective plate 21 at the positions corresponding to the bolts and nuts 24, and the bolt heads of the bolts and nuts 24 are recessed into the bolt grooves 213.

[0037] In practical applications, the bolt groove 213 in this embodiment hides the bolt head of the bolt nut 24, which can directly reduce the frictional damage of the ground to the bolt nut 24 during operation, thereby facilitating disassembly work during subsequent maintenance.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wear-resistant crane track plate, characterized in that: include: The track plate body (1) includes a plate body (11), in which a tooth groove (111) adapted to the teeth of the crane track drive wheel is fixedly opened in the middle. Multiple connecting teeth one (12) and multiple connecting teeth two (13) are staggered on both sides. A protective sleeve (14) is fixedly installed in the connecting teeth one (12) and the connecting teeth two (13). A pin (15) is rotatably installed in the protective sleeve (14) for connecting multiple track plate bodies (1). The protective component (2) is fixedly installed on the plate body (11) for protecting the track plate body (1). It includes a first protective plate (21) and a second protective plate (22). The first protective plate (21) is provided with a reserved groove (211) that is compatible with the second protective plate (22) at the position corresponding to the second protective plate (22). The second protective plate (22) passes through the reserved groove (211) and extends out of the top of the first protective plate (21).

2. The wear-resistant crane track plate according to claim 1, characterized in that: The plate body (11) is fixedly provided with a spur (112), and the second protective plate (22) is fastened to the spur (112) through a reserved groove (211).

3. The wear-resistant crane track plate according to claim 2, characterized in that: The side of the spur (112) is fixedly provided with a positioning groove (1121), and the inner side of the second protective plate (22) is fixedly provided with a positioning groove (221) corresponding to the position of the first positioning groove (1121). The first positioning groove (1121) and the second positioning groove (221) together form a positioning pin groove, in which a positioning pin (25) is movably installed for fixing the second protective plate (22) and (121).

4. The wear-resistant crane track plate according to claim 3, characterized in that: The reserved groove (211) is fixedly provided with a stop block (212) at the position corresponding to both ends of the second protective plate (22) on both sides. The side of the stop block (212) is attached to the second protective plate (22) and the spur (112) to limit the second protective plate (22) and the spur (112).

5. The wear-resistant crane track plate according to claim 1, characterized in that: The protective component (2) also includes a mounting plate (23) and bolts and nuts (24). The bottom of the plate body (11) is set with a hollow structure. The mounting plate (23) is located at the bottom of the plate body (11) and is fixedly installed on both sides of the plate body (11) by bolts and nuts (24) to the protective plate (21).

6. The wear-resistant crane track plate according to claim 5, characterized in that: Multiple bolt grooves (213) are fixedly opened on the protective plate (21) at the position corresponding to the bolt nut (24), and the bolt head of the bolt nut (24) is sunk into the bolt groove (213).