Short-wheelbase truck chassis and truck
By rationally arranging the chassis accessories of cargo trucks and optimizing the space utilization of short-wheelbase cargo trucks, the problem of non-compact cargo truck chassis design has been solved, resulting in a cargo truck chassis with a compact structure and small wheelbase, which improves the vehicle's flexibility and overall performance.
Patent Information
- Application Number
- CN202520722013.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The existing truck chassis design fails to fully meet the needs of express delivery and green channel transportation, resulting in limited vehicle flexibility and handling performance. In particular, the space utilization rate is low in short wheelbase trucks, which cannot meet the requirements of lightweighting and long range.
Design a compact, short-wheelbase truck chassis. By rationally arranging accessories such as battery boxes, urea tanks, fuel tanks, and air tanks, optimize the use of space on the inner and outer sides of the chassis, ensure that the distance between the front and rear axles is 4300mm-4700mm, integrate the fuel pre-filter and auxiliary power unit, and enhance the braking system response speed and space configuration.
This design achieves a compact structure and small wheelbase for cargo trucks, improving vehicle flexibility and handling performance, meeting short-distance transportation needs, reducing overall vehicle costs, and increasing space utilization and overall vehicle efficiency.
Smart Images
Figure CN223962169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chassis technology, and in particular to a short wheelbase truck chassis and a truck. Background Technology
[0002] With the increasing demand in the freight market, including express delivery and green channel transportation, especially in the medium- and long-distance standard-load transportation sector, the proportion of vehicles in the freight market is constantly rising. However, the design of existing truck chassis has failed to fully adapt to this growing demand. Currently, the layout of chassis accessories such as battery boxes, urea tanks, fuel tanks, and air tanks is rather haphazard, with low utilization of the space inside the longitudinal beams of the frame, while the arrangement of components on the outside of the frame is not compact enough. This results in insufficient space reserved for the later installation of accessories such as toolboxes and water tanks. Especially in the application scenarios of short-wheelbase trucks, this layout further restricts the vehicle's flexibility and handling performance.
[0003] To meet the demands for lightweight and long-range cargo trucks, and to facilitate the installation of accessories such as superstructures, toolboxes, and water tanks, the overall vehicle layout needs to be more compact and integrated. Existing chassis structures, due to their dispersed and irregular layouts, cannot effectively support these requirements, thus impacting the overall vehicle efficiency and economy. Furthermore, for short-haul transportation, short-wheelbase cargo trucks not only comply with national regulations and standards but also significantly reduce overall vehicle costs, demonstrating enormous market potential and development prospects. However, in the medium and heavy-duty cargo truck sector, there is currently no rationally designed, safe, and reliable short-wheelbase cargo truck chassis structure that can fully meet these requirements. Therefore, designing a compact and highly integrated short-wheelbase cargo truck chassis is key to solving these problems, aiming to improve the overall performance of the vehicle and better adapt to the diverse needs of the modern transportation market. Utility Model Content
[0004] This utility model provides a short wheelbase truck chassis to solve the defect of insufficient compactness in the structural layout of existing truck chassis, and provides a compact chassis to adapt to short wheelbase trucks.
[0005] This utility model also provides a cargo truck.
[0006] An embodiment of this utility model discloses a short wheelbase truck chassis, comprising:
[0007] The vehicle frame has a cab mounted at its front end, and a front axle and a rear axle are arranged sequentially from front to back at the bottom of the frame, with a distance of 4300mm-4700mm between the front axle and the rear axle.
[0008] An intake system and an exhaust system, wherein the intake system is located on the rear side wall of the cab, and the exhaust system is located in the frame behind the cab;
[0009] The battery box and the urea box are both located behind the front axle, and the battery box and the urea box are arranged opposite each other on both sides of the vehicle frame.
[0010] A fuel tank, which is mounted on the vehicle frame and located behind the urea tank;
[0011] A front axle brake air reservoir and a rear axle brake air reservoir, wherein the front axle brake air reservoir is located inside the vehicle frame and corresponds to the fuel tank, and the rear axle brake air reservoir is located behind the front axle brake air reservoir.
[0012] AMT air reservoir, wherein the AMT air reservoir is arranged in parallel with the rear axle brake air reservoir;
[0013] A fuel pre-filter and an auxiliary power unit are provided, both of which are located at the rear of the battery box, with the auxiliary power unit positioned adjacent to the vehicle frame relative to the fuel pre-filter.
[0014] In some embodiments, the frame includes a left longitudinal beam and a right longitudinal beam arranged in parallel, and between the left longitudinal beam and the right longitudinal beam, a front crossbeam, a first crossbeam, a second crossbeam, a rear leaf spring seat front crossbeam, a rear leaf spring seat rear crossbeam and a tail beam are arranged sequentially from front to back.
[0015] In some embodiments, both the front axle brake air reservoir and the rear axle brake air reservoir are located near the left longitudinal beam.
[0016] In some embodiments, the front axle brake air reservoir is located between the first crossbeam and the second crossbeam, and the rear axle brake air reservoir and the AMT air reservoir are both located between the second crossbeam and the front crossbeam of the rear leaf spring seat.
[0017] In some embodiments, the urea tank is mounted behind the right front wheel.
[0018] In some embodiments, the battery box is mounted behind the left front wheel.
[0019] In some embodiments, the short wheelbase truck chassis includes a spare tire carrier located at the rear end inside the frame, and the spare tire carrier is positioned between the rear leaf spring seat rear crossbeam and the tail beam.
[0020] In some embodiments, a taillight is mounted on the outer side of the rear end of the frame longitudinal beam.
[0021] In some embodiments, the short-wheelbase truck chassis includes a left rear fender and a right rear fender, the left rear fender being located between the battery box and the left front wheel, and the right rear fender being located between the urea tank and the right front wheel.
[0022] An embodiment of this utility model discloses a cargo truck, which includes a short-wheelbase cargo truck chassis, wherein the short-wheelbase cargo truck chassis is the short-wheelbase cargo truck chassis described in any of the above embodiments.
[0023] In this embodiment of the short-wheelbase truck chassis, the fuel pre-filter and auxiliary power unit are mounted on the battery box to leave space inside the frame. This allows the front axle brake air reservoir to be mounted in front of the rear axle brake air reservoir, resulting in a more compact overall vehicle layout. Consequently, the distance between the front and rear axles reaches 4300mm-4700mm, meeting the chassis layout requirements for short-wheelbase trucks.
[0024] The chassis of the truck according to this utility model has the advantages of compact structure and small wheelbase, which can meet the requirements of short wheelbase trucks for chassis. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a top view of the short-wheelbase truck chassis provided by this utility model after removing the cab and air intake system.
[0027] Figure 2 This is a left view of the short-wheelbase truck chassis provided by this utility model after the driver's cab has been removed.
[0028] Figure 3 This is a right view of the short-wheelbase truck chassis provided by this utility model after the driver's cab has been removed.
[0029] Figure 4 This is a left view of the short wheelbase truck chassis provided by this utility model.
[0030] Figure 5 This is a right view of the short-wheelbase truck chassis provided by this utility model.
[0031] Figure label:
[0032] 1. Front crossbeam; 2. Left longitudinal beam; 3. Engine; 4. Transmission; 5. Battery box; 6. Fuel pre-filter; 7. Auxiliary power unit; 8. First crossbeam; 9. Front axle brake air reservoir; 10. Second crossbeam; 11. Rear axle brake air reservoir; 12. Rear leaf spring seat front crossbeam; 13. Rear leaf spring seat rear crossbeam; 14. Spare tire carrier; 15. Taillight; 16. Rear beam; 17. Right longitudinal beam; 18. Right rear fender; 19. Urea tank; 20. Exhaust system; 21. Fuel tank; 22. AMT air reservoir; 23. Chassis; 24. Intake system; 25. Cab; 26. Front axle; 27. Left rear fender; 28. Rear axle. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] like Figure 1 As shown in the figure, the short wheelbase truck chassis provided by this utility model embodiment includes a frame 23, a cab 25, a front axle 26, a rear axle 28, an intake system 24, an exhaust system 20, a battery box 5, a urea tank 19, a fuel tank 21, a front axle brake air reservoir 9, a rear axle brake air reservoir 11, an AMT air reservoir 22, a fuel pre-filter 6, and an auxiliary power unit 7.
[0035] A cab 25 is mounted at the front end of the frame 23. From front to rear, a front axle 26 and a rear axle 28 are sequentially arranged at the bottom of the frame 23, with a distance of 4300mm-4700mm between them. The intake system 24 is located on the rear side wall of the cab 25, and the exhaust system 20 is located inside the frame 23 behind the cab 25. The battery box 5 and urea tank 19 are both located behind the front axle 26, and are arranged opposite each other on both sides of the frame 23. The fuel tank 21 is located on the frame 23 and behind the urea tank 19. The front axle brake air reservoir 9 is located inside the frame 23 and corresponds to the fuel tank 21, while the rear axle brake air reservoir 11 is located behind the front axle brake air reservoir 9. The AMT air reservoir 22 is arranged side-by-side with the rear axle brake air reservoir 11. Both the fuel pre-filter 6 and the auxiliary power unit 7 are located on the rear side of the battery box 5, and the auxiliary power unit 7 is located relative to the fuel pre-filter 6 and adjacent to the frame 23.
[0036] The distance between the front axle 26 and the rear axle 28 is set at 4300mm to 4700mm to ensure that the vehicle meets the needs of short-distance transportation while maintaining a compact layout. The intake system 24 is located on the rear side wall of the cab 25, while the exhaust system 20 is located in the frame 23 behind the cab 25. This arrangement not only improves airflow efficiency but also optimizes space utilization. The battery box 5 and urea tank 19 are both located behind the front axle 26, and they are arranged opposite each other on both sides of the frame 23. This arrangement helps to balance weight distribution and simplify maintenance. The fuel tank 21 is located... Located on the frame 23 and behind the urea tank 19, it ensures the stability and safety of fuel supply; the front axle brake air reservoir 9 is located inside the frame 23 and corresponds to the fuel tank 21, while the rear axle brake air reservoir 11 is located behind the front axle brake air reservoir 9. This reasonable layout enhances the response speed and reliability of the braking system; the AMT air reservoir 22 is arranged side by side with the rear axle brake air reservoir 11, further optimizing the chassis space configuration; the fuel coarse filter 6 and the auxiliary power unit 7 are both located behind the battery box 5, with the auxiliary power unit 7 being closer to the frame 23.
[0037] In this embodiment of the short-wheelbase truck chassis, the fuel pre-filter 6 and auxiliary power unit 7 are mounted on the battery box 5 to leave space inside the frame 23, thereby allowing the front axle brake air reservoir 9 to be mounted in front of the rear axle brake air reservoir 11. This makes the short-wheelbase truck chassis structure more compact, and the distance between the front axle 26 and the rear axle 28 reaches 4300mm-4700mm, meeting the requirements of short-wheelbase trucks for chassis layout.
[0038] Therefore, the short-wheelbase truck chassis of this utility model embodiment has a compact structure and a small wheelbase, which can meet the requirements of short-wheelbase trucks for chassis.
[0039] For ease of description, front-back and left-right directions are as follows: Figure 1 As shown, the frame 23 includes a left longitudinal beam 2 and a right longitudinal beam 17 arranged in parallel. Between the left longitudinal beam 2 and the right longitudinal beam 17, from front to back, there are a front crossbeam 1, a first crossbeam 8, a second crossbeam 10, a front crossbeam 12 with a rear leaf spring seat, a rear crossbeam 13 with a rear leaf spring seat, and a tail beam 16.
[0040] For example, in some embodiments, such as Figure 1As shown, the frame 23 includes a left longitudinal beam 2 and a right longitudinal beam 17 arranged in parallel. These two longitudinal beams serve as the main support structure of the frame 23, providing a solid foundation for the entire truck. Between the left longitudinal beam 2 and the right longitudinal beam 17, from front to back, there are a front crossbeam 1, a first crossbeam 8, a second crossbeam 10, a front crossbeam 12 with a rear leaf spring seat, a rear crossbeam 13 with a rear leaf spring seat, and a tail beam 16. These crossbeams not only strengthen the connection between the left longitudinal beam 2 and the right longitudinal beam 17, improving the overall rigidity and stability of the frame 23, but also provide necessary mounting points and support structures for other components, ensuring the compactness and rationality of the short wheelbase truck chassis.
[0041] In some embodiments, such as Figure 1 As shown, both the front axle brake air reservoir 9 and the rear axle brake air reservoir 11 are positioned close to the left longitudinal beam 2. This arrangement not only optimizes the space utilization of the chassis but also enhances the vehicle's stability and handling. By positioning the front axle brake air reservoir 9 in advance, the length of the front axle 26 brake line can be effectively shortened, thus accelerating the braking response speed.
[0042] In some embodiments, such as Figure 1 As shown, the front axle brake air reservoir 9 is located between the first crossbeam 8 and the second crossbeam 10, while the rear axle brake air reservoir 11 and the AMT air reservoir 22 are both located between the second crossbeam 10 and the front crossbeam 12 of the rear leaf spring seat. This layout design fully utilizes the internal space of the frame 23, achieving a compact arrangement of components and optimizing weight distribution. The position of the front axle brake air reservoir 9 not only helps to shorten braking response time but also reduces pipeline length to lower the risk of leakage. The arrangement of the rear axle brake air reservoir 11 and the AMT air reservoir 22 further improves the space utilization from the middle to the rear of the chassis, making the short-wheelbase truck chassis more integrated. This arrangement not only enhances the stability and handling of the vehicle during driving but also concentrates these key components in a specific area, making it easier for technicians to inspect or replace them.
[0043] In some embodiments, the urea tank 19 is mounted behind the right front wheel. This arrangement not only optimizes the use of chassis space but also ensures a more balanced overall weight distribution of the vehicle. By placing the urea tank 19 in this position, it effectively avoids encroaching on the area under the cab 25 and other critical areas, thus leaving ample space for other important components.
[0044] In some embodiments, the battery box 5 is mounted behind the left front wheel. This not only places the battery box 5 in a well-protected position, reducing the risk of damage from external collisions, but also facilitates electrical connections and maintenance operations, improving the overall system reliability and ease of use. This symmetrical and compact component layout effectively utilizes chassis space and helps maintain the weight balance on both sides of the vehicle, thereby improving driving stability and handling performance.
[0045] In some embodiments, such as Figure 1 As shown, the short-wheelbase truck chassis includes a spare tire carrier 14, which is located at the rear end inside the frame 23, between the rear leaf spring seat, the rear crossbeam 13, and the tail beam 16. This arrangement not only makes full use of the space at the rear of the frame 23 but also ensures the safe storage and easy access of the spare tire. Placing the spare tire carrier 14 in this position avoids occupying installation space in the middle of the chassis, allowing for a more compact and rational layout of other components.
[0046] In some embodiments, such as Figure 1 As shown, a taillight 15 is mounted on the outer side of the rear end of the longitudinal beam of the frame 23. By placing the taillight 15 on the outer side of the rear end of the longitudinal beam of the frame 23, it can be ensured that the light signal can be clearly identified under various road conditions and weather conditions, thereby effectively improving the ability of drivers behind to judge the dynamics of vehicles in front and reducing the occurrence of traffic accidents.
[0047] In some embodiments, such as Figures 2 to 5 As shown, the short-wheelbase truck chassis includes a left rear fender 27 and a right rear fender 18. The left rear fender 27 is located between the battery box 5 and the left front wheel, and the right rear fender 18 is located between the urea tank 19 and the right front wheel.
[0048] This utility model provides a cargo truck, which includes a short-wheelbase cargo truck chassis, wherein the short-wheelbase cargo truck chassis is the short-wheelbase cargo truck chassis described in any of the above embodiments.
[0049] In this embodiment of the utility model, the fuel pre-filter 6 and auxiliary power unit 7 are mounted on the battery box 5 to leave space inside the frame 23. This allows the front axle brake air reservoir 9 to be mounted in front of the rear axle brake air reservoir 11, resulting in a more compact overall vehicle layout. Consequently, the distance between the front axle 26 and the rear axle 28 reaches 4300mm-4700mm, meeting the chassis layout requirements for short-wheelbase trucks. Therefore, the truck of this utility model has a compact structure and a small wheelbase, meeting the chassis requirements for short-wheelbase trucks.
[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A short wheelbase truck chassis, characterised in that, It comprises: a frame, a front end of which is provided with a cab, a bottom of which is provided with a front axle and a rear axle from front to back, a distance between the front axle and the rear axle being 4300mm-4700mm; an air intake system and an exhaust system, the air intake system being arranged on a rear side wall of the cab, the exhaust system being arranged in the frame rear of the cab; a storage battery box and a urea tank, both of which are arranged on opposite sides of the frame rear of the front axle; an oil tank, which is arranged on the frame rear of the urea tank; a front axle brake air cylinder and a rear axle brake air cylinder, the front axle brake air cylinder being arranged on the inner side of the frame corresponding to the oil tank, the rear axle brake air cylinder being arranged rear of the front axle brake air cylinder; an AMT air cylinder, which is arranged side by side with the rear axle brake air cylinder; a fuel coarse filter and an auxiliary power unit, both of which are arranged on the rear side of the storage battery box, and the auxiliary power unit is arranged adjacent to the frame relative to the fuel coarse filter.
2. The short wheelbase truck chassis of claim 1, wherein, The frame comprises left and right longitudinal beams arranged in parallel, between which are arranged in sequence from front to back a front cross beam, a cross beam, a second cross beam, a rear leaf spring seat front cross beam, a rear leaf spring seat rear cross beam and a tail beam.
3. The short wheelbase truck chassis of claim 2, wherein, The front axle brake air cylinder and the rear axle brake air cylinder are arranged close to one side of the left longitudinal beam.
4. The short wheelbase truck chassis of claim 3, wherein, The front axle brake air cylinder is between the first cross beam and the second cross beam, and the rear axle brake air cylinder and the AMT air cylinder are between the second cross beam and the rear leaf spring seat front cross beam.
5. The short wheelbase truck chassis of claim 2, wherein, The urea tank is mounted rear of the right front wheel.
6. The short wheelbase truck chassis of claim 5, wherein, The storage battery box is mounted rear of the left front wheel.
7. The short wheelbase truck chassis of claim 2, wherein, The short wheelbase truck chassis comprises a spare tire frame, which is arranged at the rear end of the inner side of the frame, and is between the rear leaf spring seat rear cross beam and the tail beam.
8. The short wheelbase truck chassis of claim 2, wherein, Tail lights are mounted on the outer side of the tail end of the frame longitudinal beam.
9. The short wheelbase truck chassis of claim 6, wherein, The short wheelbase truck chassis comprises left and right rear fenders, the left rear fender being between the storage battery box and the left front wheel, and the right rear fender being between the urea tank and the right front wheel.
10. A truck characterized in that The short wheelbase truck chassis comprises a short wheelbase truck chassis, which is any one of claims 1-9. The short wheelbase truck chassis comprises a short wheelbase truck chassis, which is any one of claims 1-9.