A type of deformation-resistant track plate

Abstract

This utility model discloses an anti-deformation track plate, relating to the field of track plate technology. It includes a main plate body, track pin connecting portions on both sides of the main plate body, a pin sleeve embedded inside the track pin connecting portion, and reinforcing platforms at both ends of the pin sleeve and inside the track pin connecting portion. An engaging portion is provided at the top of the main plate body, and longitudinal reinforcing ribs are provided inside the main plate body. This utility model, through longitudinal T-shaped reinforcing ribs and transverse isosceles triangular reinforcing ribs, combined with a low-alloy high-strength steel tempered base material, significantly disperses bending stress, significantly reduces permanent deformation, and greatly improves bending resistance. Simultaneously, the combination design of the pin sleeve embedding and the frustum-shaped reinforcing platform strengthens the load-bearing strength around the pin hole, reduces stress concentration, significantly reduces the risk of pin hole cracking, and avoids frequent breakage. A chromium carbide wear-resistant weld overlay layer covers the bottom of the plate body and the transverse reinforcing ribs, significantly improving wear resistance and significantly slowing down the wear rate.

Description

Technical Field

[0001] This utility model relates to the field of track plate technology, and specifically to an anti-deformation track plate. Background Technology

[0002] Traditional track shoes are widely used in construction machinery such as excavators, bulldozers, and tracked cranes, especially suitable for heavy-duty scenarios such as mining and infrastructure construction. They are a core component of the machine's walking system. Their main functions are to transmit driving torque, support the weight of the equipment and the working load, while adapting to uneven ground environments, ensuring stable operation of the machinery under complex working conditions, and providing basic walking support for various engineering operations.

[0003] In scenarios involving heavy-duty transport in mines or traversing hard protrusions on construction sites, traditional track plates lack targeted reinforcement structures, making them prone to permanent deformation due to excessive bending stress; the lack of protection at the pin holes makes them susceptible to stress concentration and cracking; at the same time, insufficient wear resistance at the bottom leads to rapid wear and frequent replacement, which increases equipment downtime and maintenance costs, making it difficult to meet the long-term heavy-duty and high-impact usage requirements. Utility Model Content

[0004] This utility model provides an anti-deformation track plate to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An anti-deformation track plate includes a main body, track pin connecting portions on both sides of the main body, a pin sleeve embedded inside the track pin connecting portion, a reinforcing platform at both ends of the pin sleeve and inside the track pin connecting portion, an engaging portion at the top of the main body, longitudinal reinforcing ribs inside the main body, transverse reinforcing ribs fixedly connected to the bottom of the main body, a wear-resistant weld overlay layer at the bottom of the main body, and grooves at both ends of the main body, with elastic rubber blocks inside the grooves.

[0006] A further improvement of this utility model is that the reinforcing platform is frustum-shaped and coaxially arranged with the pin sleeve. The diameter of the reinforcing platform gradually increases from the end closer to the pin sleeve to the end farther away from the pin sleeve. The reinforcing platform and the track pin connection part are integrally formed, and the material of the reinforcing platform is the same as that of the plate body.

[0007] A further improvement of the present invention is that: there are multiple longitudinal reinforcing ribs, which are evenly distributed along the track travel direction of the main body of the plate. The cross-section of the longitudinal reinforcing rib is T-shaped, and its height is 1 / 3 to 1 / 2 of the thickness of the main body of the plate. The two ends of the longitudinal reinforcing rib extend to the inner wall of the track pin connection part.

[0008] A further improvement of this utility model is that the transverse reinforcing rib is arranged perpendicular to the longitudinal reinforcing rib, and the cross-section of the transverse reinforcing rib is an isosceles triangle.

[0009] A further improvement of the present invention is that the wear-resistant weld overlay is made of chromium carbide and has a weld overlay thickness of 3-5mm. The wear-resistant weld overlay not only covers the bottom plane of the main body of the plate, but also extends to cover the outer surface of the transverse reinforcing rib.

[0010] A further improvement of this utility model is that the elastic rubber block is made of polyurethane elastic rubber with a Shore hardness of 85-90A, and the elastic rubber block and the groove are interference fit, with the bottom of the elastic rubber block protruding 2-3mm from the bottom surface of the main body of the plate.

[0011] A further improvement of this utility model is that the main body of the plate is made of low-alloy high-strength steel, and the main body of the plate is subjected to quenching and tempering heat treatment, and the hardness after treatment is 28-32HRC.

[0012] A further improvement of this utility model is that the edges of the main body of the plate are all rounded, with a radius of 5-8mm, to avoid stress concentration at the edges.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: This utility model provides an anti-deformation track plate. Through longitudinal T-shaped reinforcing ribs and transverse isosceles triangular reinforcing ribs, combined with a low-alloy high-strength steel tempered base material, bending stress is significantly dispersed, permanent deformation is significantly reduced, and bending resistance is greatly improved. At the same time, the combination design of pin sleeve embedding and frustum-shaped reinforcing platform strengthens the load-bearing strength around the pin hole, reduces stress concentration, significantly reduces the risk of pin hole cracking, and avoids frequent breakage. The chromium carbide wear-resistant weld overlay layer covers the bottom of the plate and the transverse reinforcing ribs, which greatly improves wear resistance and significantly slows down the wear rate. Meanwhile, the elastic rubber block can absorb a large amount of impact energy, further protecting the plate. Overall, the service life of the track plate is significantly extended, the replacement frequency is reduced, the equipment downtime is greatly shortened, and the maintenance cost is significantly reduced, meeting the requirements of long-term heavy-load and high-impact use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a schematic diagram of the end structure of this utility model; Figure 4 This is an exploded structural diagram of the present invention; Figure 5This is a longitudinal sectional view of the present invention. Figure 6 This is a schematic diagram of the transverse cross-sectional structure of this utility model.

[0015] In the diagram: 1. Main body of the plate; 2. Track pin connection; 3. Pin sleeve; 4. Reinforcing platform; 5. Engaging part; 6. Longitudinal reinforcing rib; 7. Transverse reinforcing rib; 8. Wear-resistant weld overlay; 9. Groove; 10. Elastic rubber block. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to embodiments: Example 1, as Figures 1-6 As shown, this utility model provides an anti-deformation track plate, including a plate body 1, track pin connecting parts 2 are provided on both sides of the plate body 1, a pin sleeve 3 is embedded inside the track pin connecting part 2, a reinforcing platform 4 is provided at both ends of the pin sleeve 3 and inside the track pin connecting part 2, an engaging part 5 is provided at the top of the plate body 1, a longitudinal reinforcing rib 6 is provided inside the plate body 1, a transverse reinforcing rib 7 is fixedly connected to the bottom of the plate body 1, a wear-resistant weld overlay layer 8 is provided at the bottom of the plate body 1, and grooves 9 are opened at both ends of the plate body 1, with elastic rubber blocks 10 provided inside the grooves 9.

[0017] In this embodiment, the track plates engage with the teeth of the mechanical drive wheel via the meshing portion 5 at the top of the plate body 1. When the drive wheel rotates, the meshing portion 5 transmits the driving force to the entire track chain. Adjacent track plates are connected by track pin connecting portions 2. The track pins pass through the embedded pin sleeves 3. The pin sleeves 3 prevent the track pins from directly rubbing against the plate body. At the same time, the frustum-shaped reinforcing platforms 4 at both ends thicken the material around the pin holes, dispersing the radial force transmitted by the track pins, reducing stress concentration at the edges of the pin holes, and preventing cracking.

[0018] Example 2, as Figures 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the reinforcing platform 4 is frustum-shaped and coaxially arranged with the pin sleeve 3. The diameter of the reinforcing platform 4 gradually increases from the end closer to the pin sleeve 3 to the end farther away from the pin sleeve 3. The reinforcing platform 4 is integrally formed with the track pin connection part 2. The material of the reinforcing platform 4 is the same as that of the plate body 1. There are multiple longitudinal reinforcing ribs 6, which are evenly distributed along the track travel direction of the plate body 1. The cross section of the longitudinal reinforcing rib 6 is T-shaped, and its height is 1 / 3-1 / 2 of the thickness of the plate body 1. The two ends of the longitudinal reinforcing rib 6 extend to the inner wall of the track pin connection part 2. The transverse reinforcing rib 7 is arranged perpendicular to the longitudinal reinforcing rib 6. The cross section of the transverse reinforcing rib 7 is an isosceles triangle.

[0019] In this embodiment, when the track plate contacts the ground to support the weight of the equipment and the working load, the main body 1 of the plate serves as the basic load-bearing structure. It is made of low-alloy high-strength steel with good toughness and strength. The internal longitudinal reinforcing ribs 6 transmit the stress generated by the longitudinal driving force along the length of the plate. The transverse reinforcing ribs 7, which are perpendicular to the longitudinal reinforcing ribs, disperse the pressure perpendicular to the ground, greatly improving the overall rigidity of the plate and avoiding permanent bending deformation under heavy load.

[0020] Example 3, as Figures 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the wear-resistant weld overlay layer 8 is made of chromium carbide, with a weld overlay thickness of 3-5mm. The wear-resistant weld overlay layer 8 not only covers the bottom plane of the main body 1 of the plate, but also extends to cover the outer surface of the transverse reinforcing rib 7. The elastic rubber block 10 is made of polyurethane elastic rubber with a Shore hardness of 85-90A, and the elastic rubber block 10 and the groove 9 are interference-fitted. The bottom of the elastic rubber block 10 protrudes 2-3mm from the bottom surface of the main body 1 of the plate. The main body 1 of the plate is made of low-alloy high-strength steel. The main body 1 of the plate is subjected to tempering heat treatment, and the hardness after treatment is 28-32HRC. The edges of the main body 1 of the plate are all rounded with a radius of 5-8mm to avoid stress concentration at the edges.

[0021] In this embodiment, the chromium carbide wear-resistant weld overlay layer 8 covering the bottom of the main plate body 1 and the surface of the transverse reinforcing ribs 7 directly contacts the ground, using its high hardness to resist friction and wear, thus extending the service life of the bottom of the plate body. When the track plate rolls over hard protrusions or turns, the elastic rubber blocks 10 in the grooves 9 at both ends of the plate body first contact the protrusions, absorbing the impact energy through their own elastic deformation, reducing the direct impact on the main plate body. Combined with the rounded corner transition of the plate body edges, this further protects the plate body structure.

[0022] The working principle of this anti-deformation track plate will be explained in detail below.

[0023] like Figures 1-6As shown, the track plate engages with the teeth of the mechanical drive wheel through the meshing part 5 at the top of the plate body 1. When the drive wheel rotates, the meshing part 5 transmits the driving force to the entire track chain. Adjacent track plates are connected by track pin connecting parts 2. The track pins pass through the embedded pin sleeves 3. The pin sleeves 3 prevent the track pins from directly rubbing against the plate body. At the same time, the frustum-shaped reinforcing platforms 4 at both ends thicken the material around the pin holes, disperse the radial force transmitted by the track pins, reduce stress concentration at the edge of the pin holes, and prevent cracking. When the track plates contact the ground to support the weight of the equipment and the operating load, the main body 1 of the plate serves as the basic load-bearing structure. It is made of low-alloy high-strength steel with heat treatment, which has good toughness and strength. The stress generated by the longitudinal driving force is transmitted along the length of the plate through the internal longitudinal reinforcing ribs 6. The transverse reinforcing ribs 7, which are perpendicular to the longitudinal reinforcing ribs, disperse the pressure perpendicular to the ground, which greatly improves the overall rigidity of the plate and avoids permanent bending deformation under heavy load. The chromium carbide wear-resistant weld overlay layer 8 covering the bottom of the main body 1 and the surface of the transverse reinforcing ribs 7 is in direct contact with the ground. It uses its high hardness to resist friction and wear and extend the service life of the bottom of the plate. When the track plates roll over hard protrusions or turn, the elastic rubber blocks 10 in the grooves 9 at both ends of the plate first contact the protrusions and absorb the impact energy through their own elastic deformation, reducing the direct impact on the main body of the plate. Combined with the rounded corner transition of the plate edges, the plate structure is further protected.

[0024] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A deformation-resistant track shoe characterized by: The plate body includes a main body (1), with track pin connecting parts (2) on both sides of the main body (1), and a pin sleeve (3) embedded inside the track pin connecting part (2). A reinforcing platform (4) is provided at both ends of the pin sleeve (3) and inside the track pin connecting part (2). A meshing part (5) is provided at the top of the main body (1). A longitudinal reinforcing rib (6) is provided inside the main body (1). A transverse reinforcing rib (7) is fixedly connected to the bottom of the main body (1). A wear-resistant weld overlay layer (8) is provided at the bottom of the main body (1). Grooves (9) are opened at both ends of the main body (1), and an elastic rubber block (10) is provided inside the groove (9).

2. A track pad according to claim 1, wherein: The reinforcing platform (4) is frustum-shaped and coaxially arranged with the pin sleeve (3). The diameter of the reinforcing platform (4) gradually increases from the end closer to the pin sleeve (3) to the end farther away from the pin sleeve (3). The reinforcing platform (4) is integrally formed with the track pin connection part (2). The material of the reinforcing platform (4) is the same as that of the plate body (1).

3. The anti-deformation track plate according to claim 1, characterized in that: The longitudinal reinforcing ribs (6) are multiple and are evenly distributed along the track travel direction of the plate body (1). The cross section of the longitudinal reinforcing ribs (6) is T-shaped, and its height is 1 / 3 to 1 / 2 of the thickness of the plate body (1). The two ends of the longitudinal reinforcing ribs (6) extend to the inner wall of the track pin connection part (2).

4. A track pad resistant to deformation according to claim 1, characterized in that: The transverse reinforcing rib (7) is set perpendicular to the longitudinal reinforcing rib (6), and the cross section of the transverse reinforcing rib (7) is an isosceles triangle.

5. A track pad resistant to deformation according to claim 1, characterized in that: The wear-resistant weld overlay (8) is made of chromium carbide and has a weld overlay thickness of 3-5 mm. The wear-resistant weld overlay (8) not only covers the bottom plane of the main body of the plate (1), but also extends to cover the outer surface of the transverse reinforcing rib (7).

6. The anti-deformation track plate according to claim 1, characterized in that: The elastic rubber block (10) is made of polyurethane elastic rubber with a Shore hardness of 85-90A, and the elastic rubber block (10) and the groove (9) are interference fit. The bottom of the elastic rubber block (10) protrudes 2-3mm from the bottom surface of the main body (1).

7. A track pad resistant to deformation according to claim 1, characterized in that: The main body of the plate (1) is made of low alloy high strength steel. The main body of the plate (1) is subjected to quenching and tempering heat treatment, and the hardness after treatment is 28-32HRC.

8. The anti-deformation track plate according to claim 1, characterized in that: The edges of the main body of the plate (1) are all rounded, with a radius of 5-8mm, to avoid stress concentration at the edges.

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