Wide-body traction semi-trailer train

Abstract

The utility model provides a wide-body traction semitrailer which comprises a tractor and a trailer, and the tractor and the trailer are connected through a traction saddle. Two or more axles of the train are drive axles; moreover, the trailer is provided with an electric drive assembly which provides driving force for at least one axle of the trailer, so that the width of the whole train is 3-5 meters. The semi-trailer train is large in driving force, large in load capacity, convenient to maintain and good in comfort.

Description

Technical Field

[0001] This utility model belongs to the field of trailers, and specifically relates to a wide-body tractor semi-trailer train suitable for wide-body freight transport. Background Technology

[0002] With the continuous expansion of mining operations, higher demands are being placed on the transportation capacity of earthwork and ore, resulting in a growing need for larger transport vehicles. Currently, the power output of conventional centralized-drive engines is insufficient to meet the power requirements of large-tonnage, wide-body trucks / dump trucks. Using imported high-horsepower engines would limit further improvements in the load-bearing capacity of large-tonnage, wide-body vehicles, both in terms of space and cost. Simultaneously, as the load-bearing capacity requirements of vehicles continue to increase, the load-bearing capacity of conventional 6×4 leaf spring suspension and axles is no longer adequate.

[0003] To address the issue of insufficient load-bearing capacity, some manufacturers are developing 8×4 wide-body dump trucks. While this product improves the overall load-bearing capacity to some extent, its large turning radius and insufficient driving force limit its widespread adoption.

[0004] Meanwhile, there is also a type of semi-trailer truck train with drive on the market (e.g., patent application CN201510285991.7), which can achieve multi-axle drive. However, this product only solves the problem of adding drive wheels, but does not solve the problem of increasing driving force. It still uses a single power source. This design is still limited by the power limit of the engine, and therefore cannot fundamentally solve the driving force problem of large-tonnage wide-body trucks. Utility Model Content

[0005] To address the aforementioned problems and current situation, this utility model provides a novel wide-body traction semi-trailer train. By employing a combination of front-drive and trailer-drive systems, the driving force far exceeds that of existing products, with an overall power exceeding 1000hp, enabling the vehicle to carry more materials. Furthermore, the semi-trailer design doubles the load-bearing capacity of conventional vehicles on the market, resulting in superior load capacity. Moreover, the use of an electrically driven rear trailer further enhances both load-bearing capacity and driving performance. This utility model provides a semi-trailer train with high driving force, heavy load capacity, easy maintenance, and good comfort.

[0006] Specifically, this utility model provides a wide-body tractor-trailer, including a tractor and a trailer, which are connected by a traction saddle. Two or more axles of the train are drive axles; and the trailer is equipped with an electric drive unit to provide driving force to at least one axle of the trailer, thereby allowing the overall width of the train to be set to 3-5 meters (after widening the axles).

[0007] Furthermore, the tractor unit includes a tractor head and a tractor chassis. At least one axle mounted on the tractor chassis is a drive axle. Preferably, the tractor chassis has two axles, both of which are drive axles. The tractor unit is preferably equipped with a rear drive axle.

[0008] Furthermore, the trailer's electric drive assembly includes a motor and a gearbox, mounted on the trailer frame at the front of the axle, providing driving force to at least one axle of the trailer. Alternatively, the trailer's electric drive assembly can be an electric drive axle integrated into the axle.

[0009] For wide-body trailers, depending on the actual load requirements, the trailer is generally equipped with at least two axles (e.g., 2, 3, 4 or more). For a trailer with at least two axles, it is preferably front-drive, meaning the front axle is the drive axle, or the front two axles are drive axles. Of course, all axles can also be drive axles with power output.

[0010] Furthermore, the cargo box of the trailer can be configured as a rear-tipping self-dumping, side-tipping self-dumping, or inward-tipping self-dumping, or it can be a regular cargo box.

[0011] Furthermore, the rear suspension of the train can be either the traditional balanced suspension of the front vehicle or the axle type of a traditional trailer.

[0012] This invention provides a wide-body traction semi-trailer suitable for use in mines. With the axle widened, the overall width of the vehicle is 3-5 meters, reducing the possibility of rollover, increasing the carrying capacity, and making it safer and more efficient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating a wide-body traction semi-trailer of this utility model.

[0014] Figure 2 This is a schematic diagram of another example of a wide-body traction semi-trailer of this utility model.

[0015] In the diagram: 1. Tractor cab; 2. Cargo box; 3. Electric assembly; 4. Trailer axle; 11. Tractor chassis; 12. Tractor axle. Detailed Implementation

[0016] The following description, in conjunction with the accompanying drawings, further illustrates the "wide-body traction semi-trailer" of this utility model.

[0017] As shown in Figures 1-2, this utility model provides a wide-body tractor-trailer, comprising: a tractor unit 1 (which can be powered by conventional engines), a tractor chassis 11, a tractor axle 12, a cargo box, an electric drive assembly 3, and a trailer axle 4. The train of this utility model includes two or more axles as drive axles, wherein both the tractor and the trailer are equipped with drive axles, and the drive axle of the trailer axle 4 is driven by an electric drive device mounted on the trailer. Figure 1 In the example, the trailer has two trailer axles 4. Figure 2 The example trailer has three trailer axles (4). Meanwhile, Figure 2 The diagram shows the axle configuration of a traditional trailer. Depending on actual load requirements, the trailer in this utility model's train design can be equipped with more axles.

[0018] Specifically, the train includes a tractor and a trailer. The tractor includes a tractor head 1 and a tractor chassis 11, which is connected to the trailer via a saddle. Preferably, the tractor is equipped with a rear drive axle, that is, both tractor axles 12 on the tractor chassis 11 are drive axles, or at least the front axle is a drive axle, providing driving force through mechanical transmission or other means.

[0019] Furthermore, the trailer's electric drive assembly 3 includes a motor and a gearbox, and is mounted on the trailer frame at the front of the trailer axle 4, providing driving force to at least one trailer axle 4. The trailer's electric drive assembly 3 can also be an electric drive axle integrated into the trailer axle 4. Preferably, the trailer is front-drive, meaning the front trailer axle 4 is the drive axle, or both front trailer axles 4 are drive axles. Of course, all trailer axles 4 can also be drive axles with power output.

[0020] Furthermore, the cargo box 2 of the trailer can be configured as a rear-tipping self-dumping, side-tipping self-dumping, or inward-tipping self-dumping, or it can be a regular cargo box.

[0021] This utility model breaks with the conventional practice of increasing the load-bearing capacity of axles to produce large-tonnage vehicles. Instead, it uses multiple axles to distribute the load, allowing the trailer to use multiple axles as needed, including but not limited to 1, 2, 3, etc. Furthermore, the trailer axle 4 is powered by an electric drive assembly 3 to solve the problems of the towing train being unable to get out of trouble or insufficient power under special working conditions.

[0022] This train is designed for wide-body use in mines. With the axles widened, the overall width of the train is 3-5 meters, reducing the possibility of rollover, increasing the carrying capacity, and making it safer and more efficient.

[0023] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0024] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solution of the present utility model without departing from the design scheme of the present utility model are all within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been recorded in the claims.

Claims

1. A wide-body traction semi-trailer train, the train comprising a tractor and a trailer, the tractor and the trailer being connected by a traction saddle; characterized in that, The train has two or more axles that are drive axles; and the trailer is equipped with an electric drive assembly that provides driving force to at least one axle of the trailer, thereby making the overall width of the train 3-5 meters.

2. A wide-body traction semi-trailer train according to claim 1, characterized in that, The tractor unit includes a tractor head and a tractor chassis; at least one axle mounted on the tractor chassis is a drive axle.

3. A wide-body traction semi-trailer train according to claim 2, characterized in that, The tractor chassis is equipped with two axles, both of which are drive axles.

4. A wide-body traction semi-trailer train according to any one of claims 1-3, characterized in that, The trailer's electric drive assembly includes a motor and a gearbox, mounted on the trailer frame at the front of the axle, and provides driving force to at least one axle of the trailer.

5. A wide-body traction semi-trailer train according to any one of claims 1-3, characterized in that, The trailer's electric drive system is an electric drive axle integrated into the vehicle axle.

6. A wide-body traction semi-trailer train according to claim 4, characterized in that, The front axle or the first two axles of the trailer are drive axles.

7. A wide-body traction semi-trailer train according to claim 5, characterized in that, The front axle or the first two axles of the trailer are drive axles.

8. A wide-body traction semi-trailer train according to claim 4, characterized in that, The trailer's cargo box is configured as a rear-tipping self-dumping, side-tipping self-dumping, inward-tipping self-dumping, or ordinary cargo box.

9. A wide-body traction semi-trailer train according to claim 5, characterized in that, The trailer's cargo box is configured as a rear-tipping self-dumping, side-tipping self-dumping, inward-tipping self-dumping, or ordinary cargo box.

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