High-strength wear-resistant track shoe of cantilever type heading machine

By introducing reinforcing ribs, wear-resistant plates, and reinforcing plates into the track plates of cantilever tunneling machines, the problem of low track plate strength has been solved, achieving high strength and wear resistance, and improving the service life and operational stability of the equipment.

CN223934836UActive Publication Date: 2026-02-24JIANGSU RENMIN MASCH&TOOLS CO LTD
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Patent Information

Application Number
CN202520806780.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-02-24
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

The track plates of traditional cantilever tunneling machines have low structural strength and are prone to breakage or deformation under complex geological conditions, affecting the service life and operating efficiency of the equipment.

Method used

A high-strength, wear-resistant cantilever tunneling machine track plate was designed, including components such as drive shaft, reinforcing ribs, connecting discs, track parts, wear-resistant plates, and reinforcing plates. The reinforcing ribs improve the strength of the drive shaft, the wear-resistant plates enhance the overall strength and wear resistance of the track, and the stress points are distributed to avoid local stress concentration.

Benefits of technology

It improves the overall strength and wear resistance of the track plates, extends the service life of the equipment, enhances the stability and reliability of operation, and avoids the problem of easy damage due to low strength.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of track shoe structures, in particular to a high-strength wear-resistant cantilever type heading machine track shoe which comprises a transmission shaft, a plurality of reinforcing ribs are arranged on the surface of the transmission shaft, and connecting discs are fixedly installed at the two ends of the transmission shaft. A wear-resistant plate is fixedly mounted on the surface of the crawler part, and a connecting shaft is mounted at one end of the crawler part; the crawler belt has the advantages that the crawler belt pieces can be connected through the connecting shafts at one ends of the crawler belt pieces to form the crawler belt of the cantilever type heading machine, the connecting discs at the two ends of the transmission shaft are clamped at the two ends of the crawler belt pieces, the crawler belt can rotate under rotation of the transmission shaft, and the reinforcing ribs on the surface of the transmission shaft can effectively improve the strength of the transmission shaft; meanwhile, the wear-resisting plates located on the surfaces of the crawler parts can improve the strength of the whole crawler and are more wear-resisting, and therefore the problem that the crawler is low in strength and prone to damage is solved.
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Description

Technical Field

[0001] This utility model relates to the field of track plate structure technology, specifically a high-strength wear-resistant cantilever tunneling machine track plate. Background Technology

[0002] The track shoes of a cantilever tunneling machine play a key role in supporting the weight of the entire machine, providing walking power, and ensuring the stability of the equipment. By contacting the ground, they convert the power of the tunneling machine into forward or backward traction force, adapting to the construction needs under different geological conditions.

[0003] In the existing technology, the track plates of traditional cantilever tunneling machines are mainly composed of high-strength steel, connecting pins and pads. The steel plates provide the main load-bearing capacity and wear resistance, the connecting pins are used to fix and connect adjacent track plates to form a complete closed loop, and the pads reduce friction and enhance stability, thereby ensuring that the tunneling machine can travel normally.

[0004] However, the track plates of traditional cantilever tunneling machines have relatively simple overall structures and uneven stress distribution among components. In addition, they are prone to breakage or deformation due to long-term operation under complex geological conditions, which affects the service life and operating efficiency of the equipment. Therefore, this utility model proposes a high-strength wear-resistant track plate for cantilever tunneling machines to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength, wear-resistant cantilever tunneling machine track plate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength wear-resistant cantilever tunneling machine track plate, the high-strength wear-resistant cantilever tunneling machine track plate comprising: a drive shaft, the surface of the drive shaft being provided with a plurality of reinforcing ribs, and connecting discs being fixedly installed at both ends of the drive shaft;

[0007] The track component has a wear-resistant plate fixedly installed on its surface, and a connecting shaft is installed at one end of the track component.

[0008] Preferably, the track component is composed of a main body plate, a first connecting member and a second connecting member. The first connecting member and the second connecting member are arranged linearly and equidistantly at both ends of the main body plate. A connecting shaft is provided inside the first connecting member. An upper reinforcing plate is fixedly installed on the upper surface of the track component, and a lower reinforcing plate is fixedly installed on the lower surface of the track component.

[0009] Preferably, the upper reinforcing plate has an overall "convex" shaped structure, and a wear-resistant plate is fixedly installed on the surface of the upper reinforcing plate. The wear-resistant plate has an overall "convex" shaped structure, and several wear-resistant grooves are formed on the surface of the wear-resistant plate.

[0010] Preferably, the lower reinforcing plate has a square plate structure, a square groove is formed in the center of the surface of the lower reinforcing plate, a first reinforcing block is fixedly installed in the square groove, and a number of mounting grooves are formed on the surface of the lower reinforcing plate on both sides of the first reinforcing block, and a second reinforcing block is fixedly installed in the mounting groove.

[0011] Preferably, the transmission shaft is fixedly connected to connecting discs at both ends, and a number of circumferentially equidistant reinforcing ribs are installed on the surface of the transmission shaft, with a reinforcing outer shaft fixedly installed outside the reinforcing ribs.

[0012] Preferably, the connecting discs are provided in two sets, and the two sets of connecting discs are symmetrically installed at both ends of the drive shaft. The side wall of the connecting discs is provided with a number of circumferentially equidistant slots, which fit into the first connecting member.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention proposes a high-strength, wear-resistant cantilever tunneling machine track plate. In use, the track components can be interconnected via a connecting shaft at one end to form the track of the cantilever tunneling machine. The connecting discs at both ends of the drive shaft are engaged with the ends of the track components, allowing the track to rotate under the rotation of the drive shaft. The reinforcing ribs on the surface of the drive shaft effectively improve its strength, while the wear-resistant plates on the surface of the track components enhance the overall track strength and wear resistance, thus avoiding the problem of low track strength and easy damage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the track component structure of this utility model;

[0017] Figure 3 This is a bottom view of the structure of the track component of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional transmission structure of this utility model;

[0019] Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Drive shaft; 2. Connecting disc; 3. Reinforcing rib; 4. Track component; 5. Wear-resistant plate; 6. Connecting shaft; 7. Main body plate; 8. First connecting piece; 9. Second connecting piece; 10. Upper reinforcing plate; 11. Lower reinforcing plate; 12. First reinforcing block; 13. Wear-resistant groove; 14. Second reinforcing block; 15. Reinforcing outer shaft; 16. Groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a high-strength wear-resistant cantilever tunneling machine track plate, the high-strength wear-resistant cantilever tunneling machine track plate includes: a drive shaft 1, a plurality of reinforcing ribs 3 are provided on the surface of the drive shaft 1, and connecting discs 2 are fixedly installed at both ends of the drive shaft 1;

[0023] Track component 4, wear-resistant plate 5 is fixedly installed on the surface of track component 4, and connecting shaft 6 is installed at one end of track component 4;

[0024] In use, the track components 4 can be connected to each other via the connecting shaft 6 at one end to form the track of the cantilever tunneling machine. The connecting discs 2 at both ends of the drive shaft 1 are locked onto both ends of the track components 4, allowing the track to rotate under the rotation of the drive shaft 1. The reinforcing ribs 3 on the surface of the drive shaft 1 can effectively improve the strength of the drive shaft 1. At the same time, the wear-resistant plates 5 on the surface of the track components 4 can improve the overall track strength while making it more wear-resistant, thus avoiding the problem of low track strength and easy damage.

[0025] Example 2: Based on Example 1, a lower reinforcing plate 11 is provided to increase the overall structural strength. The lower reinforcing plate 11 is a square plate structure with a square groove in the center of its surface. A first reinforcing block 12 is fixedly installed in the square groove. Several mounting grooves are provided on the surface of the lower reinforcing plate 11 on both sides of the first reinforcing block 12, and second reinforcing blocks 14 are fixedly installed in the mounting grooves. The track component 4 is composed of a main body plate 7, a first connecting member 8, and a second connecting member 9. The first connecting member 8 and the second connecting member 9 are arranged linearly and equidistantly at both ends of the main body plate 7. A connecting shaft 6 is provided in the first connecting member 8. An upper reinforcing plate 10 is fixedly installed on the surface of the track component 4, and a lower reinforcing plate 11 is fixedly installed on the lower surface of the track component 4. During use, the entire track is formed by connecting the first connecting piece 8 and the second connecting piece 9 at the front and rear ends of the track component 4 through the connecting shaft 6. The lower reinforcing plate 11 is fixedly installed on the lower surface of the track component 4. The first reinforcing block 12 and the second reinforcing block 14 set in the lower reinforcing plate 11 can effectively distribute the stress points when the track is running, avoid structural damage caused by local stress concentration, and enhance the overall rigidity and impact resistance of the track component 4, thereby improving the overall strength, extending the service life and improving the stability of equipment operation.

[0026] The drive shaft 1 is fixedly connected to both ends with connecting discs 2. Several reinforcing ribs 3 are circumferentially equidistantly arranged on the surface of the drive shaft 1. A reinforcing outer shaft 15 is fixedly installed on the outside of the reinforcing ribs 3. There are two sets of connecting discs 2, which are symmetrically installed at both ends of the drive shaft 1. Several circumferentially equidistantly arranged slots 16 are opened on the side wall of the connecting disc 2. The slots 16 fit with the first connecting parts 8. In use, the slots 16 of the connecting disc 2 fit with several first connecting parts 8, so that the rotation of the drive shaft 1 can drive the track to rotate. Several reinforcing ribs 3 are fixedly installed on the outside of the drive shaft 1. The reinforcing ribs 3 are located between the drive shaft 1 and the reinforcing outer shaft 15, which can improve the overall strength and make the overall structure more stable.

[0027] Example 3: Based on Example 2, an upper reinforcing plate 10 is provided to improve the overall wear resistance. The upper reinforcing plate 10 has a "convex" shaped structure, and a wear-resistant plate 5 is fixedly installed on the surface of the upper reinforcing plate 10. The wear-resistant plate 5 also has a "convex" shaped structure, and several wear-resistant grooves 13 are formed on its surface. The wear-resistant plate 5 located on the surface of the upper reinforcing plate 10 has a "convex" shaped structure, which can effectively increase the contact area, disperse the stress points, and reduce local wear. At the same time, the design of the wear-resistant grooves 13 can further reduce frictional resistance and accommodate some impurities or dirt during operation, avoiding excessive wear caused by foreign objects, thereby improving the wear resistance of the overall structure, extending the service life, and enhancing the reliability of equipment operation.

[0028] Working principle: In actual use, the track components 4 can be connected to each other through the connecting shaft 6 at one end to form the track of the cantilever tunneling machine. The connecting discs 2 at both ends of the drive shaft 1 are locked at both ends of the track components 4, so that the track can rotate under the rotation of the drive shaft 1. The reinforcing ribs 3 on the surface of the drive shaft 1 can effectively improve the strength of the drive shaft 1. At the same time, the wear-resistant plates 5 on the surface of the track components 4 can improve the overall track strength and make it more wear-resistant, thus avoiding the problem of low track strength and easy damage.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength, wear-resistant cantilever tunneling machine track plate, characterized in that: The high-strength wear-resistant cantilever tunneling machine track plate includes: a drive shaft (1), a number of reinforcing ribs (3) are provided on the surface of the drive shaft (1), and connecting discs (2) are fixedly installed at both ends of the drive shaft (1); Track component (4), wear-resistant plate (5) is fixedly installed on the surface of track component (4), and a connecting shaft (6) is installed at one end of track component (4).

2. The high-strength wear-resistant cantilever tunneling machine track plate according to claim 1, characterized in that: The track component (4) is composed of a main plate (7), a first connecting member (8) and a second connecting member (9). The first connecting member (8) and the second connecting member (9) are arranged linearly and equidistantly at both ends of the main plate (7). A connecting shaft (6) is provided inside the first connecting member (8). An upper reinforcing plate (10) is fixedly installed on the upper surface of the track component (4), and a lower reinforcing plate (11) is fixedly installed on the lower surface of the track component (4).

3. The high-strength wear-resistant cantilever tunneling machine track plate according to claim 2, characterized in that: The upper reinforcing plate (10) has a "convex" shaped structure. A wear-resistant plate (5) is fixedly installed on the surface of the upper reinforcing plate (10). The wear-resistant plate (5) has a "convex" shaped structure and several wear-resistant grooves (13) are opened on the surface of the wear-resistant plate (5).

4. A high-strength wear-resistant cantilever tunneling machine track plate according to claim 2, characterized in that: The lower reinforcing plate (11) is a square plate structure. A square groove is provided in the center of the surface of the lower reinforcing plate (11). A first reinforcing block (12) is fixedly installed in the square groove. Several mounting grooves are provided on the surface of the lower reinforcing plate (11) on both sides of the first reinforcing block (12). A second reinforcing block (14) is fixedly installed in the mounting groove.

5. A high-strength wear-resistant cantilever tunneling machine track plate according to claim 1, characterized in that: The drive shaft (1) is fixedly connected to the two ends of the connecting disc (2), and a number of circumferentially equidistant reinforcing ribs (3) are installed on the surface of the drive shaft (1). A reinforcing outer shaft (15) is fixedly installed on the outside of the reinforcing ribs (3).

6. The high-strength wear-resistant cantilever tunneling machine track plate according to claim 1, characterized in that: The connecting disc (2) is provided in two sets. The two sets of connecting discs (2) are symmetrically installed at both ends of the transmission shaft (1). The side wall of the connecting disc (2) is provided with a number of circumferentially equidistant slots (16), which fit into the first connecting piece (8).