Track chain of bolting and driving machine of large-gradient hard rock heading machine

Abstract

The utility model relates to the technical field of heading machine bolter miner track chains, in particular to a large-gradient hard rock heading machine bolter miner track chain which comprises a track chain body, the track chain body is composed of a plurality of track shoe bodies, the bottom faces of the track shoe bodies are fixedly provided with through teeth, and side pin lugs are symmetrically distributed on one sides of the track shoe bodies. Butt joint pin lugs are fixedly mounted on the sides, away from the side pin lugs, of the track shoes, and connecting pin grooves are formed in the inner sides of the two side pin lugs. According to the crawler chain disclosed by the utility model, the through teeth and the mud discharge grooves in various shapes are designed at the bottom of the crawler plate, so that the adhesive force and the mud discharge performance are obviously enhanced, and the stability and the operation efficiency of the heading machine in a large-gradient and muddy environment are ensured. And meanwhile, the track shoe is made of a high-strength wear-resistant material and is provided with a reinforcing block, so that the wear resistance of the track chain is greatly improved, the service life of the track chain is greatly prolonged, the maintenance cost is reduced, the stability of the whole structure is enhanced, and the reliability of equipment can be kept in long-time and high-load operation.

Description

Technical Field

[0001] The utility model relates to the technical field of roadheader crawler chains, in particular to the crawler chain of a roadheader-anchoring machine for hard rock tunneling with large gradients. Background Art

[0002] With the continuous in-depth development of mines, tunnels and underground projects, as a key construction equipment, the application demand of roadheaders in complex terrains and large-gradient environments is increasing day by day. However, the existing designs of roadheader crawler chains are mainly for relatively flat terrains and are difficult to provide sufficient adhesion and stability in large-gradient and complex terrains. In a large-gradient working environment, due to insufficient adhesion, traditional crawler chains are prone to phenomena such as sliding and skidding, resulting in reduced tunneling efficiency and even possible safety accidents such as equipment instability and overturning. In addition, when traditional crawler chains operate in terrains with more mud and gravel, the accumulation of mud and gravel often affects the contact between the crawler chain and the ground, further reducing the working stability and safety.

[0003] In order to improve the working performance of roadheaders in complex terrains, various improvements have been made to the structure of crawler chains in the prior art. For example, increasing the tooth structure on the surface of crawler plates to improve the friction with the ground, or designing mud discharge grooves on the crawler plates to improve the mud discharge effect. However, these improvement measures still have deficiencies in large-gradient environments, especially in terms of adhesion, mud discharge performance and overall structural stability, and still need to be further optimized. In addition, with the increasingly complex working environment of roadheaders, the market demand for crawler chains with high strength, high wear resistance and long service life is also increasing.

[0004] Based on this, designing a crawler chain that can maintain good adhesion in a large-gradient working environment, effectively remove mud and gravel, and has high durability and structural stability has become an important topic in the current research and development of roadheader equipment. Content of the Utility Model

[0005] The purpose of the utility model is to solve the technical problems put forward in the above background art.

[0006] The utility model adopts the following technical scheme: the crawler chain of a roadheader-anchoring machine for hard rock tunneling with large gradients, including a crawler chain, the crawler chain is composed of a plurality of crawler plates, a through tooth is fixedly installed on the bottom surface of the crawler plate, side pin ears are symmetrically distributed on one side of the crawler plate, a docking pin ear is fixedly installed on the side of the crawler plate away from the side pin ears, a connection pin groove is formed inside the two groups of side pin ears, a middle pin ear is fixedly installed in the middle on the side of the crawler plate where the docking pin ear is located, and a mud discharge groove is opened at the bottom of the crawler plate.

[0007] Preferably, the crawler plate is made of high-strength wear-resistant material. Here, the crawler plate made of high-strength wear-resistant material significantly improves the wear resistance and impact resistance of the crawler chain, extends the service life of the crawler chain, reduces the downtime and maintenance costs caused by frequent replacement of the crawler plate, and at the same time enables the crawler chain to maintain stable operation in harsh working environments, is not easily worn out and fails, and ensures the continuity and safety of the tunneling operation.

[0008] Preferably, the mud discharge groove is linear, wavy or cross-shaped. Here, it enables the crawler chain to efficiently discharge soil and gravel during the tunneling operation, preventing these substances from accumulating on the crawler plate, thereby maintaining the adhesion and operating efficiency of the crawler plate. Through the optimized design of the mud discharge groove, the slipping phenomenon of the tunneling machine in wet or muddy environments is reduced, further enhancing the safety and stability of the operation.

[0009] Preferably, the docking pin ear is in series with the side pin ear, and the middle pin ear is in series with the connecting pin slot. Here, it ensures the firm connection of the crawler chain during operation, avoids loosening or falling off between the crawler plates, improves the overall stability of the entire crawler chain, makes the maintenance and replacement of the crawler chain more convenient, reduces the complex operations that may occur during installation or replacement, and improves work efficiency.

[0010] Preferably, the height of the through teeth is 20 mm, and the through teeth are symmetrically distributed on the bottom surface of the crawler plate. Here, it increases the contact area between the crawler plate and the ground, effectively improves the adhesion of the crawler chain, enables the tunneling machine to still move forward smoothly in a large slope environment. The symmetrical distribution of the through teeth ensures that the crawler chain is evenly stressed when contacting the ground, reduces the wear or damage of the crawler plate caused by excessive unilateral stress, and extends the service life of the crawler plate.

[0011] Preferably, reinforcement blocks are fixedly installed on the surface of the crawler plate, and the reinforcement blocks are distributed on the surface edge of the mud discharge groove. Here, it enhances the overall structural strength of the crawler plate. In particular, the reinforcement blocks at the edge of the mud discharge groove can effectively prevent the wear or damage of the groove opening during long-term use, further improving the durability of the crawler plate. At the same time, the crawler plate is not easily deformed under high-intensity operation, ensuring the long-term stable operation of the crawler chain and reducing the risk of operation failures or accidents caused by deformation.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] In this utility model, the crawler chain significantly enhances the adhesion and mud discharge performance by designing interlinking teeth and mud discharge grooves of various shapes at the bottom of the crawler plate, ensuring the stability and operation efficiency of the roadheader in large slope and muddy environments. At the same time, the crawler plate is made of high-strength wear-resistant materials and is equipped with a reinforcement block design, greatly improving the wear resistance and service life of the crawler chain, reducing the maintenance cost, enhancing the stability of the overall structure, and ensuring the reliability of the equipment during long-term and high-load operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic diagram of the crawler chain of the roadheader-anchor machine for large slope hard rock tunneling proposed by this utility model;

[0015] Figure 2 FIG. is a bottom view of the crawler chain of the roadheader-anchor machine for large slope hard rock tunneling proposed by this utility model;

[0016] Figure 3 FIG. is a top view of the crawler chain of the roadheader-anchor machine for large slope hard rock tunneling proposed by this utility model.

[0017] LEGEND:

[0018] 1. Crawler plate; 2. Side pin ear; 3. Mud discharge groove; 4. Reinforcement block; 5. Interlinking tooth; 6. Docking pin ear; 7. Intermediate pin ear; 8. Connecting pin groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to more clearly understand the above-mentioned objects, features, and advantages of this utility model, the following further describes this utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other.

[0020] In the following description, many specific details are set forth to fully understand this utility model. However, this utility model can also be implemented in other ways different from those described herein. Therefore, this utility model is not limited by the specific embodiments disclosed in the following specification.

[0021] Embodiment

[0022] Please refer to Figures 1-3, the present utility model provides a technical solution: a crawler chain for a large - slope hard - rock tunneling and bolting machine, including a crawler chain which is composed of a plurality of crawler plates 1. The crawler plates 1 are made of high - strength wear - resistant materials. The use of crawler plates 1 made of high - strength wear - resistant materials significantly improves the wear resistance and impact resistance of the crawler chain, extends the service life of the crawler chain, reduces the downtime and maintenance costs caused by frequent replacement of the crawler plates 1, and at the same time enables the crawler chain to still operate stably in harsh working environments, is not easily invalidated due to wear, and ensures the continuity and safety of the tunneling operation. A through - tooth 5 is fixedly installed on the bottom surface of the crawler plate 1. The height of the through - tooth 5 is 20 mm, and the through - teeth 5 are symmetrically distributed on the bottom surface of the crawler plate 1, increasing the contact area between the crawler plate 1 and the ground, effectively improving the adhesion of the crawler chain, enabling the tunneling machine to still move forward smoothly in a large - slope environment. The symmetrical distribution of the through - teeth 5 ensures that the crawler chain is evenly stressed when contacting the ground, reduces the wear or damage of the crawler plate 1 caused by excessive unilateral stress, and extends the service life of the crawler plate 1. Side pin ears 2 are symmetrically distributed on one side of the crawler plate 1. A docking pin ear 6 is fixedly installed on the side of the crawler plate 1 away from the side pin ears 2. A connection pin slot 8 is formed inside the two groups of side pin ears 2. A middle pin ear 7 is fixedly installed in the middle on the side of the crawler plate 1 where the docking pin ear 6 is located. The docking pin ear 6 is connected in series with the side pin ears 2, and the middle pin ear 7 is connected in series with the connection pin slot 8, ensuring the firm connection of the crawler chain during operation, avoiding loosening or falling off between the crawler plates 1, improving the overall stability of the entire crawler chain, making the maintenance and replacement of the crawler chain more convenient, reducing the complex operations that may occur during installation or replacement, and improving work efficiency. A mud - discharging groove 3 is opened at the bottom of the crawler plate 1. The mud - discharging groove 3 is linear, wavy or cross - shaped, enabling the crawler chain to efficiently discharge soil and gravel during the tunneling operation, preventing these substances from accumulating on the crawler plate 1, thereby maintaining the adhesion and operating efficiency of the crawler plate 1. Through the optimized design of the mud - discharging groove 3, the slipping phenomenon of the tunneling machine in wet or muddy environments is reduced, further enhancing the safety and stability of the operation. Reinforcement blocks 4 are fixedly installed on the surface of the crawler plate 1. The reinforcement blocks 4 are distributed at the surface edge of the mud - discharging groove 3, enhancing the overall structural strength of the crawler plate 1. In particular, the reinforcement blocks 4 at the edge of the mud - discharging groove 3 can effectively prevent the wear or damage of the groove opening during long - term use, further enhancing the durability of the crawler plate 1, and at the same time making the crawler plate 1 not easily deformed under high - strength operations, ensuring the long - term stable operation of the crawler chain and reducing the risk of operation failures or accidents caused by deformation.

[0023] Working principle: The through teeth 5 installed on the bottom surface of the crawler plate 1 are the core components for improving the adhesion of the crawler chain. Through the symmetric distribution design, when the crawler plate 1 contacts the ground, the force can be evenly distributed across the entire bottom surface of the crawler plate 1. This not only effectively prevents the tilting or offset of the crawler plate 1 caused by unilateral force, but also significantly enhances the grip of the crawler chain by the 20 - millimeter height of the through teeth 5, which deeply embed into the ground. In a large - slope environment, traditional crawler chains are prone to slipping or side - slipping due to insufficient adhesion. However, this crawler chain effectively overcomes this problem through an optimized tooth structure, enabling the roadheader to advance stably and efficiently.

[0024] During the operation of the roadheader, especially in terrain conditions with more mud and gravel, the mud - discharging grooves 3 at the bottom of the crawler chain play an important role. The mud - discharging grooves 3 are designed in a straight - line shape, a wave - shape, or a cross - shape, and are specifically selected according to different working conditions. The straight - line mud - discharging groove 3 is suitable for general terrains and can quickly and effectively discharge mud. The wave - shape design performs well in complex and variable terrains. Through the continuous mud - discharging of the wave - shape structure, the accumulation of mud in the groove is avoided. The cross - shape mud - discharging groove 3 is suitable for environments with a higher mud content. Through the criss - cross structure, the mud - discharging effect is further enhanced, preventing the accumulation of mud under the crawler plate 1 and ensuring that the crawler plate 1 always maintains good adhesion performance.

[0025] The stability of the crawler chain is the key to ensuring the long - term and high - load operation of the roadheader. The crawler plates 1 are interconnected through the side pin ears 2, the butt - joint pin ears 6, and the middle pin ears 7, forming a tight and solid overall structure. The connection groove formed by the series connection of the side pin ears 2 and the butt - joint pin ears 6 makes the connection between the crawler plates 1 more stable, avoiding loosening or fracture caused by high - speed rotation or severe impact. In addition, the design of the middle pin ears 7 and the connection pin grooves 8 ensures that when the crawler chain is subjected to high - strength tension in complex terrains, it can still maintain the integrity and firmness of the structure. This not only improves the impact resistance of the crawler chain but also significantly extends its service life.

[0026] The track shoe 1 is made of high-strength wear-resistant material, which has excellent anti-wear performance. This material can not only resist long-term mechanical wear but also has high corrosion resistance, making it suitable for various complex and harsh working environments. To further enhance the durability of the track shoe 1, reinforcement blocks 4 are installed on the surface of the track shoe 1, especially at the edge of the mud discharge groove 3. The setting of the reinforcement blocks 4 effectively prevents wear or damage to the edge part caused by long-term friction or impact. The use of the reinforcement blocks 4 not only enhances the mechanical strength of the track shoe 1 but also further improves its anti-deformation ability, ensuring the long-term stable operation of the track chain under high-intensity working conditions. The design of the track chain of the large-slope hard rock roadheader-anchor machine is not only applicable to traditional tunneling operations but also particularly suitable for working environments with large slopes and complex terrains such as mines and tunnels. The general design of the structure of the track shoe 1 enables it to be applied to various models of roadheaders. Whether it is the assembly of a new roadheader or the upgrade and transformation of existing equipment, it can be perfectly adapted. Through the synergistic effect of the convex structure on the surface of the track shoe 1 and the bottom mud discharge groove 3, the track chain can maintain excellent operating performance under various terrain conditions, significantly improving the operating efficiency and safety of the roadheader.

[0027] The above are only the preferred embodiments of the present invention and do not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A crawler chain of a steep-slope hard rock tunnel boring machine, comprising a crawler chain, wherein the crawler chain is composed of a plurality of crawler plates (1), and is characterized in that: The bottom surface of the track shoe (1) is fixedly provided with a through tooth (5), one side of the track shoe (1) is symmetrically provided with side pin ears (2), a butt pin ear (6) is fixedly provided on the side of the track shoe (1) away from the side pin ears (2), a connecting pin groove (8) is formed on the inner sides of the two groups of side pin ears (2), a middle pin ear (7) is fixedly provided on the track shoe (1) in the middle of one side of the butt pin ear (6), and a mud discharge groove (3) is provided at the bottom of the track shoe (1).

2. The crawler chain of a steep-slope hard rock tunnel boring machine and anchor boring machine according to claim 1, characterized in that: The track shoe (1) is made of high-strength wear-resistant material.

3. The crawler chain of a steep-slope hard rock tunnel boring machine and anchor drill according to claim 1, characterized in that: The mud discharge groove (3) is in a straight line, a wave shape or a cross shape.

4. The crawler chain of a steep-slope hard rock tunnel boring machine anchor drill according to claim 1, characterized in that: The butt-jointing pin ear (6) is connected in series with the side pin ear (2), and the middle pin ear (7) is connected in series with the connecting pin groove (8).

5. The crawler chain of a steep-slope hard rock tunnel boring machine anchor drill according to claim 1, characterized in that: The height of the series teeth (5) is 20 mm, and the series teeth (5) are symmetrically distributed on the bottom surface of the track shoe (1).

6. The crawler chain of a steep-slope hard rock tunnel boring machine anchor drill according to claim 1, characterized in that: A reinforcement block (4) is fixedly mounted on the surface of the track shoe (1), and the reinforcement block (4) is distributed on the surface edge of the mud discharge groove (3).

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