Chassis structure for unmanned mine truck and unmanned mine truck

Abstract

The utility model discloses a chassis structure for unmanned mine truck and unmanned mine truck, wherein the chassis structure for unmanned mine truck includes chassis assembly, front steering drive axle, rear driven axle and cab installation module, the upside of chassis assembly is used for installing mine truck box, and the downside is sequentially provided with two front steering drive axles and two rear driven axles along the direction of vehicle, the front steering drive axle and rear driven axle all adopt double tire structure, the cab installation module is located at the side of one end of chassis assembly in the direction of vehicle, is located in front of front steering drive axle and is used for detachably installing cab module. The chassis structure for unmanned mine truck disclosed by the utility model is combined by double front steering drive axle, double rear driven axle, double tire structure and cab installation module, optimizes power system layout, and improves load capacity and adaptability and flexibility of vehicle.

Description

Technical Field

[0001] This utility model relates to the field of mining truck technology, and in particular to a chassis structure for unmanned mining trucks and an unmanned mining truck. Background Technology

[0002] Mining dump trucks are core transportation equipment in large-scale open-pit mining operations. The performance of their chassis structure directly determines the vehicle's load-bearing capacity, reliability, operating efficiency, and operating costs. With the increasing demand for mineral resources and the continuous expansion of mining scale, large-tonnage mining dump trucks of 100 tons and above have become the industry mainstream, and the technical requirements for chassis structures are also increasing.

[0003] Traditional mining dump truck chassis often employ various axle configurations, with the front steering axle frequently using a single-axle, single-tire structure, which is insufficient to meet the load-bearing requirements of heavy-duty operations. To improve load capacity, a common design approach is to increase the number of axles and tires. For example, the common four-axle structure typically uses a combination of dual steering front axles and a "one-drive, one-follower" dual rear axle configuration. This type of structure has advantages such as mature technology and a complete industrial chain, and has been widely used in manned fuel-powered mining trucks.

[0004] However, as mining operations rapidly develop towards intelligence, unmanned operation, and electrification, traditional chassis structures have gradually revealed several inherent defects and limitations when applied to unmanned electric mining trucks. These mainly include: a long mechanical transmission path, which is not conducive to electrification transformation and range improvement; severe tire wear; limited climbing ability of the single drive axle structure, which has to bear all driving torque, making it prone to overload, fatigue, and premature damage to the axle and related transmission components, affecting the overall reliability of the axle.

[0005] Furthermore, most mining dump trucks currently use a rigid, integrated connection between the chassis and cab, resulting in a fixed structure. With mines accelerating their transformation towards unmanned and intelligent operations, this traditional layout is ill-suited to the technical requirements of autonomous driving systems. Especially during specific operational modes requiring vehicle testing, emergency maintenance, or temporary switching to manned operation, the existing rigid structure lacks the necessary adaptability and flexibility, increasing operational complexity and costs. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a chassis structure for an unmanned mining truck and an unmanned mining truck. The chassis structure for the unmanned mining truck includes a chassis assembly, a front steering drive axle, a rear driven axle, and a cab mounting module. The upper side of the chassis assembly is used to install the mining truck cargo box, and the lower side is arranged with two front steering drive axles and two rear driven axles in sequence along the driving direction. Both the front steering drive axles and the rear driven axles adopt a dual-tire structure. The cab mounting module is located on the side of the chassis assembly at one end in the driving direction, in front of the front steering drive axle, and is used for detachably mounting the cab.

[0007] Preferably, the axle housing thickness of the front steering drive axle is 29mm-32mm.

[0008] Preferably, the axle housing thickness of the front steering drive axle is 30 mm.

[0009] This utility model also provides an unmanned mining truck, which adopts the chassis structure for unmanned mining trucks described above.

[0010] The unmanned mining truck chassis structure provided by this utility model combines a dual front steering drive axle, a dual rear driven axle, a dual-tire structure, and a cab mounting module. By employing a four-axle layout with dual front steering drive axles and dual rear driven axles, and using a dual-tire structure for all axles, the ground contact area and number of axles are significantly increased, effectively distributing the load across the entire vehicle and improving its load-bearing capacity. Furthermore, the optimized power system layout is more adaptable to electrification and unmanned operation. The independent cab mounting module allows for the detachable installation of the cab on one side of the chassis, enabling the installation of a driver's cab while still meeting the requirements for unmanned driving. This allows for the rapid installation of a temporary manned cab during commissioning, emergency maintenance, or when temporary switching to manned driving is needed. This greatly enhances the vehicle's adaptability and flexibility. The unmanned mining truck chassis structure provided by this utility model offers a chassis structure for unmanned vehicles with high load-bearing capacity, high reliability, and strong adaptability. Attached Figure Description

[0011] Figure 1 Side view of the unmanned mining truck provided for an embodiment of this utility model; Figure 2 for Figure 1 Rear view; Figure 3 A top view of the chassis structure for an unmanned mining truck provided in an embodiment of this utility model; The components are: 11. Chassis assembly; 12. Front steering drive axle; 121. Axle housing; 13. Rear driven axle; 14. Cab mounting module; 15. Cab module; 16. Mining truck cargo box; 17. Equipment bracket; 18. Tires. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods. Unless otherwise specified, the materials and reagents used in the following embodiments can be obtained commercially.

[0013] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0015] This utility model embodiment provides a chassis structure for an unmanned mining truck and an unmanned mining truck. The chassis structure includes a chassis assembly 11, a front steering drive axle 12, a rear driven axle 13, and a cab mounting module 14. The upper side of the chassis assembly 11 is used to install the mining truck cargo box 16, and the lower side is provided with two front steering drive axles 12 and two rear driven axles 13 in sequence along the driving direction. The front steering drive axles 12 and the rear driven axles 13 both adopt a dual tire structure. The cab mounting module 41 is located on the side of the chassis assembly 11 at one end in the driving direction, in front of the front steering drive axle 12, and is used to detachably mount the cab 15.

[0016] In specific implementation, such as Figures 1-3 As shown, the chassis structure for the unmanned mining truck includes a chassis assembly 11, a front steering drive axle 12, a rear driven axle 13, and a cab mounting module 14, wherein: The upper side of the chassis assembly 11 is flat, and the mining truck cargo box 16 is installed using structures including but not limited to existing saddle and locking structures, bolt fixing, etc. The lower side of the chassis assembly 11 is arranged with two front steering drive axles 12 and two rear driven axles 13 in sequence along the driving direction. The steering drive axles 12 adopt the existing electric drive axle structure, and its specific structure and working principle are existing technologies in this field, which will not be described in detail here. The front steering drive axles 12 adopt a dual steering drive structure, which can provide sufficient power on the one hand, and significantly solve the tire wear problem compared with single axle drive on the other hand. The structure of combining two front steering drive axles 12 and two rear driven axles 13 can provide more space for the installation of equipment brackets 17, so that equipment brackets 17 can accommodate more equipment, such as larger batteries, thereby improving the vehicle's range. Both the front steering drive axles 12 and the rear driven axles 13 adopt a dual tire structure, that is, two tires 18 are respectively set at both ends of each axle. This design significantly increases the contact area between the tire and the ground, distributes the load of a single tire, and improves the adaptability to harsh road surfaces. The cab mounting module 41 is located on the side of the chassis assembly 11 at the driving direction end, in front of the front steering drive axle 12. The cab mounting module 41 includes, but is not limited to, existing platform structures, bolted connections, or snap-fit ​​connections, to enable the detachable installation of the cab module 15. By positioning the cab mounting module 41 on the side of the chassis assembly 11 on the driving direction side, the cab module 15 can be installed on the side of the vehicle. With the same vehicle length, this avoids the cab module 15 occupying vehicle length, allowing the vehicle to accommodate a longer cargo box. To improve the vehicle's load-bearing capacity, in this embodiment, the cab module 15 is equipped with a manned driving control module and a control harness for connecting with the unmanned mining truck. The unmanned mining truck also has a corresponding control harness reserved for connecting with the manned driving control module. During testing, the control harness between the two is connected, and the driver can control the unmanned mining truck by operating the manned driving control module. The steering wheel, brake disc, and other structures for controlling the vehicle in the cab module 15 for connecting with the manned driving control module are existing technologies in this field and will not be described in detail here. When debugging, emergency maintenance, or temporary switching to a specific operating mode with manned driving is required, the cab mounting module 41 is used to achieve a detachable connection with the chassis assembly 11, so as to facilitate the installation of the cab module 15 on the unmanned mining truck.

[0017] The unmanned mining truck chassis structure provided in this embodiment combines a dual front steering drive axle, dual rear driven axle, dual tire structure, and a cab mounting module. By employing a four-axle layout with dual front steering drive axles and dual rear driven axles, and using dual tires on all axles, the ground contact area and number of axles are significantly increased, effectively distributing the vehicle's load and improving its load-bearing capacity. Furthermore, the optimized power system layout is more adaptable to electrification and unmanned operation. The independent cab mounting module allows for the detachable installation of the cab on one side of the chassis, enabling the installation of a driver's cab while meeting the requirements of unmanned driving. This allows for the rapid installation of a temporary manned cab during commissioning, emergency maintenance, or when temporary switching to manned driving is needed. This greatly enhances the vehicle's adaptability and flexibility. The unmanned mining truck chassis structure provided in this embodiment offers a chassis structure for unmanned vehicles with high load-bearing capacity, high reliability, and strong adaptability.

[0018] Preferably, the axle housing 121 of the front steering drive axle 12 has a thickness of 29mm-32mm. Through in-depth research and calculation, this embodiment further limits the axle housing thickness range (29mm-32mm) to achieve an optimal balance between lightweight and high strength, and to improve the strength of the axle housing to meet the design requirements of the aforementioned large tonnage load.

[0019] Preferably, the axle housing 121 of the front steering drive axle 12 has a thickness of 30mm. In this embodiment, by optimizing the axle housing 121 thickness to 30mm, when combined with the aforementioned unmanned mining truck chassis structure, the unmanned vehicle can operate at its optimal performance.

[0020] This utility model also provides an unmanned mining truck, which adopts the chassis structure for unmanned mining trucks described above. The unmanned mining truck is further equipped with an autonomous driving device, a sensing system, and a braking system. The autonomous driving device is an existing unmanned vehicle autonomous driving system and a vehicle VCU. The autonomous driving device is connected to the vehicle's braking system, the drive of the slewing device (cylinder control module, motor, etc.), battery module, and sensing system. The sensing system is typically located around the vehicle body or in the vehicle's operating area, and includes, but is not limited to, laser sensors and vision sensors. The braking system includes, but is not limited to, existing air compression braking systems and hydraulic braking systems. The autonomous driving device can also receive GPS positioning information to achieve vehicle positioning. After receiving signals from the sensing system and / or GPS positioning, the autonomous driving device processes them and controls the vehicle's drive unit, steering drive axle drive unit, and braking system to start or stop, steer, and brake as needed. Controlling vehicle movement through the unmanned vehicle autonomous driving device and the vehicle VCU according to a set program is a common technical means in this field and will not be elaborated further here.

[0021] 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 chassis structure for an unmanned mining truck, characterized in that, Includes a chassis assembly (11), a front steering drive axle (12), a rear driven axle (13), and a cab mounting module (14), wherein: The upper side of the chassis assembly (11) is used to install the mining truck cargo box (16), and the lower side is provided with two front steering drive axles (12) and two rear driven axles (13) in sequence along the driving direction. The front steering drive axles (12) and the rear driven axles (13) are both of the dual tire structure. The cab mounting module (14) is located on the side of the chassis assembly (11) at one end in the driving direction, in front of the front steering drive axle (12), and is used to detachably mount the cab module (15).

2. The chassis structure for unmanned mining trucks according to claim 1, characterized in that: The axle housing (121) of the front steering drive axle (12) has a thickness of 29mm-32mm.

3. The chassis structure for unmanned mining trucks according to claim 2, characterized in that: The axle housing (121) of the front steering drive axle (12) has a thickness of 30 mm.

4. An unmanned mining truck, characterized in that: The chassis structure for unmanned mining trucks as described in any one of claims 1-3 is adopted.

Images