Connecting structure of mine truck drive axle and mine truck

Abstract

The application discloses a connecting structure of a mining truck drive axle, and belongs to the technical field of engineering vehicles. Since the upper mounting support is fixed on the cross beam through an integrated forming process, the influence of the length of a weld on the structure of the longitudinal beam and the cross beam is not considered, thus the size and thickness of the upper mounting support can be properly adjusted within a certain space range, the connection reliability and the bearing capacity are enhanced. In addition, when the structure is seriously damaged, the cross beam can be replaced alone without changing the frame longitudinal beam, the maintenance convenience and economy are greatly improved, and the integrity and long-term durability of the frame body are ensured. The design not only optimizes the stress structure and reliability of the whole vehicle, but also is favorable for promoting the standardization and production efficiency improvement of the mining truck in the design and manufacturing process.

Description

Technical Field

[0001] This application relates to the field of engineering vehicle technology, and in particular to a connection structure of a drive axle for a mining truck and a mining truck. Background Technology

[0002] New energy mining trucks are core transportation equipment in open-pit mining and large-scale earthmoving projects. With the advancement of the national "green mine" policy and the transformation and upgrading of the mining development model, the research and application of new energy mining trucks has become an industry trend. In typical mining truck working environments, they must continuously withstand harsh conditions such as heavy loads, high-intensity long-term operation, and severe road conditions, thus placing high demands on the structural stability of the entire mining truck.

[0003] When new energy mining trucks operate under the same load conditions, the more severe the road conditions, the more pronounced the vibration and judder of the drive axle become, thus placing higher demands on the load-bearing capacity of the drive axle thrust rod. As a key structural component connecting the drive axle and the mining truck frame, the reliability of the drive axle thrust rod directly affects the durability and operational safety of the entire vehicle. Currently, common drive axle thrust rod supports are fixed to the frame longitudinal beams using a combination of welding and bolting. To avoid excessive weakening of the longitudinal beam's structural integrity by welds and bolt holes, the weld length and connection hole size of the thrust rod support on the longitudinal beam are usually limited. However, under the long-term effects of heavy loads and harsh road conditions, this design is prone to weld cracking, which is difficult to repair. In severe cases, it can even cause tearing between the axle housing and the frame longitudinal beam, rendering the entire drive axle and longitudinal beam unusable, resulting in a high failure rate. Conversely, using a cast bolt connection structure would damage the frame longitudinal beam itself, further affecting the overall durability and economy of the vehicle. Faced with these structural challenges, the industry urgently needs a new type of drive axle thrust rod connection solution. This solution should ensure sufficient structural strength and stability while improving the convenience of installation and maintenance, thereby effectively controlling the maintenance costs of mining trucks throughout their entire life cycle and enhancing operational efficiency and market competitiveness. Utility Model Content

[0004] This application provides a connection structure for a drive axle of a mining truck and a mining truck vehicle. It solves the problem of the urgent need for a novel drive axle connection structure in the prior art. The technical solution is as follows: On the one hand, a connection structure for a mining truck drive axle is provided, the connection structure of which includes: a thrust rod, an upper mounting bracket, a crossbeam, and a lower mounting bracket; One end of the thrust rod is hinged to the upper mounting support, and the upper mounting support and the crossbeam are an integral structure. The lower mounting bracket is used for fixed connection with the drive axle, and the other end of the thrust rod is hinged to the lower mounting bracket.

[0005] Optionally, the upper mounting support includes: two mounting wall plates arranged opposite each other, one end of the thrust rod is connected to a connecting pin, both ends of the connecting pin are rotatably connected to the two mounting wall plates respectively, and the length direction of the connecting pin intersects the length direction of the crossbeam.

[0006] Optionally, the width of the portion of the mounting wall panel that is fixedly connected to the crossbeam is greater than the width of the portion of the mounting wall panel that is connected to the connecting pin.

[0007] Optionally, the lower mounting bracket is fixed to the axle housing of the drive axle by welding, or the lower mounting bracket and the axle housing of the drive axle are an integral structure.

[0008] Optionally, the width of the portion of the lower mounting bracket that connects to the axle housing of the drive axle is greater than the width of the portion of the lower mounting bracket that connects to the other end of the thrust rod.

[0009] On one hand, a mining truck vehicle is provided, the mining truck vehicle including: a drive axle and a connection structure of the mining truck vehicle drive axle, wherein the lower mounting bracket in the connection structure of the mining truck vehicle drive axle is fixedly connected to the axle housing of the drive axle; wherein the connection structure of the mining truck vehicle drive axle is any of the connection structures of the mining truck vehicle drive axle given above.

[0010] The beneficial effects of the technical solutions provided in this application include at least the following: Because the upper mounting bracket is fixed to the crossbeam using an integrated molding process, there is no need to consider the impact of weld length on the longitudinal and crossbeam structures. Therefore, within a certain space, the size and thickness of the upper mounting bracket can be appropriately adjusted to enhance connection reliability and load-bearing capacity. Furthermore, in the event of severe damage, this structure allows for the replacement of the crossbeam alone without altering the longitudinal beams of the chassis, greatly improving maintenance convenience and economy while ensuring the integrity and long-term durability of the chassis. This design not only optimizes the overall vehicle's stress structure and reliability but also promotes standardization and increased production efficiency in the design and manufacturing processes of mining trucks. This solution, through the modular design of integrating the thrust rod bracket into the crossbeam, supports the replacement of the entire crossbeam assembly in the event of severe damage, significantly reducing the impact on the longitudinal beams of the chassis and greatly improving maintenance convenience and economy. Simultaneously, this structure frees the upper mounting bracket's size and thickness design from the limitations of weld space, allowing for flexible optimization within a non-interfering range during the design phase, significantly enhancing the structure's load-bearing potential and the adaptability of the overall vehicle design. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the connection structure of a drive axle for a mining truck provided in an embodiment of this application; Figure 2 yes Figure 1 The diagram shows a front view of the connection structure of the drive axle of a mining truck. Figure 3 yes Figure 2 A side view of the connection structure of the drive axle of a mining truck is shown.

[0013] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0016] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the connection structure of a drive axle for a mining truck provided in an embodiment of this application. Figure 2 yes Figure 1 The diagram shows a front view of the connection structure of the drive axle of a mining truck. Figure 3 yes Figure 2The diagram shows a side view of the connection structure of the drive axle for a mining truck. The connection structure of the drive axle may include: a thrust rod 100, an upper mounting bracket 200, a crossbeam 300, and a lower mounting bracket 400.

[0017] One end of the thrust rod 100 in the connecting structure of the drive axle of the mining truck can be hinged to the upper mounting support 200, and the upper mounting support 200 and the crossbeam 300 can be an integral structure.

[0018] The lower mounting bracket 400 in the connection structure of the drive axle of the mining truck can be used to fix it to the drive axle (not shown in the figure), and the other end of the thrust rod 100 can be hinged to the lower mounting bracket 400.

[0019] For example, the upper mounting bracket 200 and the crossbeam 300 are integrally molded, achieving seamless integration with the frame crossbeam 300. This not only significantly improves production efficiency but also effectively enhances the strength and stability of the overall structure. This design effectively reduces welding processes, thereby significantly reducing potential damage to the frame longitudinal beams caused by excessive welding, further improving product reliability and durability. The left end of the frame crossbeam 300 is welded and fixed to the left longitudinal beam of the frame, while the other end is fixed to the right longitudinal beam of the frame, ensuring a stable and reliable overall connection. By systematically connecting the thrust rod 100 system to the frame crossbeam 300, the torsional stress borne by the frame longitudinal beam is effectively isolated, thereby improving the overall vehicle stress state, enhancing the vehicle's torsional resistance, and extending the service life of the mining truck. The upper mounting bracket 200 is rotatably connected to one end of the thrust rod 100, while the other end of the thrust rod 100 is connected to the lower mounting bracket 400 through another set of rotatable connection mechanisms, forming a flexible connection system that can adapt to complex working conditions. This enhances the structural reliability and improves the adaptability and stability of the vehicle during operation.

[0020] In this embodiment, since the upper mounting bracket 200 is fixed to the crossbeam 300 using an integral molding process, there is no need to consider the impact of weld length on the structure of the longitudinal and transverse beams 300. Therefore, within a certain spatial range, the size and thickness of the upper mounting bracket 200 can be appropriately adjusted to enhance connection reliability and load-bearing capacity. Furthermore, in the event of severe damage, this structure allows for the replacement of the crossbeam alone without altering the longitudinal beams of the chassis, greatly improving maintenance convenience and economy while ensuring the integrity and long-term durability of the chassis body. This design not only optimizes the overall load-bearing structure and reliability of the vehicle but also promotes standardization and improves production efficiency in the design and manufacturing process of mining trucks. This solution integrates the thrust rod 100 support into the crossbeam using a modular design, allowing for the replacement of the entire crossbeam assembly in the event of severe damage. This significantly reduces the impact on the longitudinal beams of the frame, greatly improving maintenance convenience and economy. At the same time, this structure frees the size and thickness design of the upper mounting support 200 from the limitations of weld space. During the design phase, it can be flexibly optimized within a range without interference, significantly enhancing the load-bearing capacity of the structure and the adaptability of the overall vehicle design.

[0021] In summary, this application provides a connection structure for a drive axle of a mining truck, which may include: a thrust rod, an upper mounting bracket, a crossbeam, and a lower mounting bracket. Since the upper mounting bracket is fixed to the crossbeam using an integral molding process, there is no need to consider the impact of weld length on the longitudinal and transverse beam structures. Therefore, within a certain spatial range, the size and thickness of the upper mounting bracket can be appropriately adjusted to enhance connection reliability and load-bearing capacity. Furthermore, in the event of severe damage, this structure allows for the replacement of the crossbeam alone without altering the longitudinal beams of the chassis, greatly improving maintenance convenience and economy, while ensuring the integrity and long-term durability of the chassis body. This design not only optimizes the overall vehicle's stress structure and reliability but also promotes standardization and improves production efficiency in the design and manufacturing process of mining trucks. This solution integrates the thrust rod support into the crossbeam in a modular design, allowing for the replacement of the entire crossbeam assembly in the event of severe damage. This significantly reduces the impact on the longitudinal beams of the frame, greatly improving maintenance convenience and economy. At the same time, this structure frees the design of the size and thickness of the upper mounting support from the limitations of weld space. During the design phase, it can be flexibly optimized within a range without interference, significantly enhancing the load-bearing capacity of the structure and the adaptability of the overall vehicle design.

[0022] Optional, such as Figure 2 As shown, the upper mounting support 200 in the connection structure of the driving axle of the mining truck may include: two mounting wall plates 201 arranged opposite to each other, and one end of the thrust rod 100 has a connecting pin 202. The two ends of the connecting pin 202 are respectively rotatably connected to the two mounting wall plates 201, and the length direction of the connecting pin 202 may intersect with the length direction of the crossbeam 300.

[0023] In this application, the width of the portion of the mounting wall plate 201 of the upper mounting support 200 that is fixedly connected to the crossbeam 300 can be greater than the width of the portion of the mounting wall plate 201 that is connected to the connecting pin 202. This effectively ensures the strength of the connection between the mounting wall plate 201 and the crossbeam 300, ensuring the reliability of the connection interface and the effectiveness of force transmission.

[0024] Optionally, the lower mounting bracket 400 can be fixed to the axle housing of the drive axle by welding, or the lower mounting bracket 400 and the axle housing of the drive axle can be an integral structure. Both connection methods ensure the reliability of the connection interface and the effectiveness of force transmission.

[0025] In this application, the width of the portion of the lower mounting bracket 400 that connects to the axle housing of the drive axle can be greater than the width of the portion of the lower mounting bracket 400 that connects to the thrust rod 100. This increases the strength of the connection between the lower mounting bracket 400 and the axle housing of the drive axle, further ensuring the reliability of the connection interface and the effectiveness of force transmission.

[0026] This application also provides a mining truck vehicle, which may include: a drive axle and a connection structure for the mining truck drive axle, wherein a lower mounting bracket in the connection structure for the mining truck drive axle can be fixedly connected to the axle housing of the drive axle. For example, the lower mounting bracket and the axle housing of the drive axle are fixed by welding, or the lower mounting bracket and the axle housing of the drive axle are an integral structure.

[0027] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0028] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A connection structure for a drive axle of a mining truck, characterized in that, include: Thrust rod, upper mounting bracket, crossbeam, and lower mounting bracket; One end of the thrust rod is hinged to the upper mounting support, and the upper mounting support and the crossbeam are an integral structure. The lower mounting bracket is used for fixed connection with the drive axle, and the other end of the thrust rod is hinged to the lower mounting bracket.

2. The connection structure of the driving axle of the mining truck according to claim 1, characterized in that, The upper mounting support includes two mounting wall plates arranged opposite each other. One end of the thrust rod has a connecting pin. Both ends of the connecting pin are rotatably connected to the two mounting wall plates respectively, and the length direction of the connecting pin intersects the length direction of the crossbeam.

3. The connection structure of the driving axle for mining trucks according to claim 2, characterized in that, The width of the portion of the mounting panel that is fixedly connected to the crossbeam is greater than the width of the portion of the mounting panel that is connected to the connecting pin.

4. The connection structure of the driving axle of the mining truck according to claim 1, characterized in that, The lower mounting bracket is fixed to the axle housing of the drive axle by welding, or the lower mounting bracket and the axle housing of the drive axle are an integral structure.

5. The connection structure of the driving axle of the mining truck according to claim 4, characterized in that, The width of the portion of the lower mounting bracket that connects to the axle housing of the drive axle is greater than the width of the portion of the lower mounting bracket that connects to the thrust rod.

6. A mining truck, characterized in that, include: The drive axle and the connection structure of the mining truck drive axle according to any one of claims 1-5, wherein the lower mounting support in the connection structure of the mining truck drive axle is fixedly connected to the axle housing of the drive axle.

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