Sectional type frame front end assembly of commercial vehicle

Abstract

The utility model relates to a sectional type frame front end assembly of a commercial vehicle, which comprises a first cross beam assembly and a second cross beam assembly, and the first cross beam assembly is connected with the second cross beam assembly through a front extending beam. The first cross beam assembly comprises a first cross beam and first cross beam connecting seats, the first cross beam connecting seats are arranged at the two ends of the first cross beam, and the first cross beam connecting seats are connected with the forward extending beam; the first cross beam connecting seat is provided with a front suspension mounting hole for mounting a cab front suspension and a front traction pin mounting hole for mounting a front traction pin; according to the sectional type structure, the front extending beam and the front extending beam connecting base are of the sectional type structure, the front extending beam meets the installation requirements of a cab front suspension, a steering gear support, a bumper, a widened cooling module, a turnover oil cylinder support and the like, and the front extending beam connecting base meets the installation requirements of a front plate spring suspension and getting-on steps. The chassis is suitable for arrangement requirements of various power chassis such as pure electric chassis and fuel cell chassis, and the chassis is high in universality.

Description

Technical Field

[0001] This utility model relates to the field of commercial vehicle chassis manufacturing technology, and in particular to a segmented front end assembly of a commercial vehicle frame. Background Technology

[0002] Front end assembly of the frame: Located at the front of the chassis of the fuel cell commercial vehicle, it is fixedly connected to the left and right longitudinal beams of the frame by bolts and nuts.

[0003] With the continuous innovation and development of hydrogen fuel cell engine technology, the fuel cells and motors required for long-distance trunk and medium-distance transportation have larger power, and the vehicles have greater requirements for high and low temperature heat dissipation of fuel cells. Therefore, the whole vehicle adopts a flat and widened cooling module. The existing front-end frame structure uses a single cast structure for the left and right front extension beams. However, as vehicles have greater demands for high and low temperature heat dissipation from fuel cells, a flattened and widened cooling module solution is adopted. Due to the limited width of the single cast structure of the front-end frame assembly, it cannot meet the fixing requirements of the flattened and widened cooling module, nor can it meet the high and low temperature heat dissipation requirements of fuel cell heavy-duty vehicles. At the same time, because the left and right front extension beams use a single cast structure, in order to meet the requirements of the flattened and widened cooling module arrangement, it is necessary to increase the internal width of the left and right front extension beams and increase the width of the left and right front extension beam parts. This results in a complex casting structure, a complex casting mold structure, more parting surfaces, more cores, more casting defects, poor processability, higher scrap rate, reduced part machine performance, and increased casting costs. Furthermore, the single cast structure of the left and right front extension beams is redundant and bulky, resulting in no space for accessories such as steering gear brackets and cab tilting brackets. New dedicated structures need to be designed, resulting in poor structural versatility and hindering the modular layout of the chassis. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a segmented front-end assembly for commercial vehicles, solving the problems of complexity, structural redundancy, heavy weight, and poor manufacturability caused by the integral casting structure of the left and right front extension beams, and meeting the requirements of flattened and widened cooling module layout for fuel cell heavy-duty vehicles.

[0005] This utility model is achieved using the following technical solution:

[0006] A segmented front-end assembly for a commercial vehicle frame includes a first crossbeam assembly and a second crossbeam assembly, wherein the first crossbeam assembly and the second crossbeam assembly are connected by a front extension beam;

[0007] The first crossbeam assembly includes a first crossbeam and a first crossbeam connecting seat. The first crossbeam is provided with a first crossbeam connecting seat at both ends, and the first crossbeam connecting seat is connected to the front extension beam. The first crossbeam connecting seat is provided with a front suspension mounting hole for installing the front suspension of the cab and a front towing pin mounting hole for installing the front towing pin.

[0008] Preferably, the front extension beam includes a left front extension beam and a right front extension beam, and the first crossbeam connecting seat is connected to the left front extension beam and the right front extension beam respectively.

[0009] Preferably, the left front extension beam is provided with a left front extension beam connecting seat, and the right front extension beam is provided with a right front extension beam connecting seat. The upper end of the left front extension beam connecting seat is located on the outer side of the left longitudinal beam of the frame through the left front extension beam, and the upper end of the right front extension beam connecting seat is located on the outer side of the right longitudinal beam of the frame through the right front extension beam. The lower ends of the left and right front extension beam connecting seats are connected to the second crossbeam assembly.

[0010] Preferably, both the lower ends of the left and right front extension beam connecting seats are provided with leaf spring suspension mounting holes, which are connected to the front leaf spring suspension.

[0011] Preferably, the left and right front extension beams, as well as the left and right front extension beam connecting seats, are all provided with weight-reducing holes.

[0012] Preferably, the lower end of the left front extension beam connecting seat is further provided with a left mounting seat, the lower end of the right front extension beam connecting seat is further provided with a right mounting seat, the upper end of the left mounting seat is provided with a left upper vehicle step, the upper end of the right mounting seat is provided with a right upper vehicle step, a bumper bracket is connected between the left mounting seat and the right mounting seat, and the bumper bracket is provided with a front bumper and a front lower protection.

[0013] Preferably, the outer side of the left front extension beam is connected to the steering gear bracket, and the outer side of the right front extension beam is connected to the cab tilting cylinder bracket; a cooling module is connected between the inner sides of the left and right front extension beams.

[0014] Preferably, the cooling module is a flattened, widened cooling module with a width of 900mm-1300mm.

[0015] Preferably, the first crossbeam is a hollow tube structure.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] Segmented structure: The front extension beam and the front extension beam connecting seat are segmented structures. The front extension beam meets the installation requirements of the cab front suspension, steering gear bracket, bumper, widened cooling module and tilting cylinder bracket, etc. The front extension beam connecting seat meets the installation requirements of the front leaf spring suspension and the upper step. It is suitable for the layout requirements of various power chassis such as pure electric and fuel cell, and the chassis has strong versatility.

[0018] Large layout space: It can accommodate cooling modules with various heat dissipation capabilities with a layout width range of 900mm-1300mm, meeting the high and low temperature heat dissipation requirements of fuel cell heavy-duty vehicles. It has strong chassis versatility and can meet the chassis layout requirements of different models.

[0019] Lightweight structure: The left and right front extension beams adopt a waist-tight structure that is wider at the front and narrower at the back, which solves the problems of complexity, redundancy and heavy weight of the one-piece structure. At the same time, weight-reducing holes are set on the sides of the left and right front extension beams to reduce the weight of the parts.

[0020] Improved structural strength: The segmented structure simplifies the parts and solves the problems of complex structure and poor casting process of one-piece parts. At the same time, the reinforcement ribs are arranged according to the stress analysis to improve the strength performance, resulting in a better structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0024] Figure 4 This is a schematic diagram of the structure of the first crossbeam of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the forward extension beam of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the left front extension beam connecting seat of this utility model.

[0027] Figure Labels

[0028] 1. First crossbeam assembly; 2. Left front extension beam; 3. Right front extension beam; 4. Left front extension beam connecting seat; 41. Left mounting seat; 42. Left upper vehicle step; 5. Right front extension beam connecting seat; 51. Right mounting seat; 52. Right upper vehicle step; 6. Second crossbeam assembly; 7. Weight reduction hole; 8. Cooling module; 9. First crossbeam; 10. First crossbeam connecting seat; 11. Cab front suspension; 12. Front suspension mounting hole; 13. Front traction pin mounting hole; 14. Left longitudinal beam of the frame; 15. Right longitudinal beam of the frame; 16. Leaf spring suspension mounting hole; 17. Front leaf spring suspension; 18. Front bumper; 19. Steering gear bracket; 20. Cab tilting cylinder bracket; 21. Front underrun protection. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments 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, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0030] A segmented front end assembly for a commercial vehicle frame includes a first crossbeam assembly 1 and a second crossbeam assembly 6, wherein the first crossbeam assembly 1 and the second crossbeam assembly 6 are connected by a front extension beam.

[0031] The first crossbeam assembly 1 includes a first crossbeam 9 and a first crossbeam connecting seat 10. The first crossbeam 9 is provided with a first crossbeam connecting seat 10 at both ends. The first crossbeam connecting seat 10 is connected to the front extension beam. The first crossbeam connecting seat 10 is provided with a front suspension mounting hole 12 for installing the front suspension 11 of the cab and a front traction pin mounting hole 13 for installing the front traction pin.

[0032] The front extension beam includes a left front extension beam 2 and a right front extension beam 3, and the first crossbeam connecting seat 10 is connected to the left front extension beam 2 and the right front extension beam 3 respectively.

[0033] The left front extension beam 2 is provided with a left front extension beam connecting seat 4, and the right front extension beam 3 is provided with a right front extension beam connecting seat 5. The upper end of the left front extension beam connecting seat 4 is located on the outer side of the left longitudinal beam 14 of the frame through the left front extension beam 2, and the upper end of the right front extension beam connecting seat 5 is located on the outer side of the right longitudinal beam 15 of the frame through the right front extension beam 3. The lower ends of the left front extension beam connecting seat 4 and the right front extension beam connecting seat 5 are connected to the second crossbeam assembly 6.

[0034] Both the left front extension beam connecting seat 4 and the right front extension beam connecting seat 5 are provided with leaf spring suspension mounting holes 16 at their lower ends, and the leaf spring suspension mounting holes 16 are connected to the front leaf spring suspension 17.

[0035] The left front extension beam 2 and the right front extension beam 3, the left front extension beam connecting seat 4 and the right front extension beam connecting seat 5 are all provided with weight reduction holes 7.

[0036] The lower end of the left front extension beam connecting seat 4 is also provided with a left mounting seat 41, and the lower end of the right front extension beam connecting seat 5 is also provided with a right mounting seat 51. The upper end of the left mounting seat 41 is provided with a left upper vehicle step 42, and the upper end of the right mounting seat 51 is provided with a right upper vehicle step 52. A bumper bracket is connected between the left mounting seat 41 and the right mounting seat 51. The bumper bracket is provided with a front bumper 18 and a front lower guard 21.

[0037] The steering gear bracket 19 is connected to the outer side of the left front extension beam 2, and the cab tilting cylinder bracket 20 is connected to the outer side of the right front extension beam 3; a cooling module 8 is connected between the inner sides of the left front extension beam 2 and the right front extension beam 3.

[0038] The left front extension beam 2 and the right front extension beam 3, along with the left front extension beam connecting seat 4 and the right front extension beam connecting seat 5, are segmented structures. The left front extension beam 2 and the right front extension beam 3 meet the installation requirements of the cab front suspension 11, steering gear bracket 19, front bumper 18, cooling module 8, and cab tilting cylinder bracket 20. The left front extension beam connecting seat 4 and the right front extension beam connecting seat 5 meet the installation requirements of the front leaf spring suspension 17, left upper vehicle step 42, and right upper vehicle step 52. This design is suitable for various power chassis layout requirements, including pure electric and fuel cell vehicles, and has strong chassis versatility.

[0039] The left front extension beam 2 and the right front extension beam 3 adopt a waist-tight structure that is wider at the front and narrower at the back, which solves the problems of complexity, redundancy and heavy weight of the integrated structure. At the same time, weight reduction holes 7 are provided on the sides of the left front extension beam 2, the right front extension beam 3, the left front extension beam connecting seat 4, and the right front extension beam connecting seat 5 to reduce the overall weight of the parts.

[0040] Cooling module 8 is a flattened, widened cooling module with a width of 900mm-1300mm.

[0041] The first crossbeam 9 is a hollow tube structure.

Claims

1. A commercial vehicle subsection frame front end assembly characterized by, The first cross beam assembly (1) and the second cross beam assembly (6) are connected through the front beam; The first cross beam assembly (1) comprises the first cross beam (9) and the first cross beam connecting seat (10), the first cross beam connecting seat (10) is connected with the front beam, the first cross beam connecting seat (10) is provided with the front suspension mounting hole (12) for mounting the cab front suspension (11) and the front draw pin mounting hole (13) for mounting the front draw pin.

2. The commercial vehicle framed vehicle subassembly of claim 1, characterized by, The front beam comprises the left front beam (2) and the right front beam (3), the first cross beam connecting seat (10) is connected with the left front beam (2) and the right front beam (3) respectively.

3. The commercial vehicle framed subassembly front end assembly of claim 2, characterized by The left front beam connecting seat (4) is arranged on the outer side of the left longitudinal beam (14) through the left front beam (2), the right front beam connecting seat (5) is arranged on the outer side of the right longitudinal beam (15) through the right front beam (3), the left front beam connecting seat (4) and the right front beam connecting seat (5) are connected with the second cross beam assembly (6).

4. The commercial vehicle framed subassembly front end assembly of claim 3, characterized by The left front beam connecting seat (4) and the right front beam connecting seat (5) are provided with the leaf spring suspension mounting hole (16), the leaf spring suspension mounting hole (16) is connected with the front leaf spring suspension (17).

5. The commercial vehicle framed subassembly front end assembly of claim 4, characterized by The left front beam (2) and the right front beam (3), the left front beam connecting seat (4) and the right front beam connecting seat (5) are provided with the lightening hole (7).

6. The commercial vehicle framed subassembly front end assembly of claim 5, characterized by The left front beam connecting seat (4) is further provided with the left mounting seat (41), the right front beam connecting seat (5) is further provided with the right mounting seat (51), the left mounting seat (41) is provided with the left upper running board (42), the right mounting seat (51) is provided with the right upper running board (52), the left mounting seat (41) and the right mounting seat (51) are connected with the bumper support, the bumper support is provided with the front bumper (18) and the front lower protection (21).

7. The commercial vehicle framed subassembly front end assembly of claim 3, characterized by, The left front beam (2) is connected with the steering gear support (19) on the outer side, the right front beam (3) is connected with the cab turnover oil cylinder support (20) on the outer side, the left front beam (2) and the right front beam (3) are connected with the cooling module (8) on the inner side.

8. The commercial vehicle subframe front end assembly of claim 7, characterized by, The cooling module (8) is a flattened and widened cooling module with a width of 900mm-1300mm.

9. The commercial vehicle framed subassembly front end assembly of claim 1, wherein, The first cross beam (9) is a hollow pipe structure.

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