Balance shaft cross beam assembly of heavy-duty car

Abstract

The utility model provides a balance shaft cross beam assembly of a heavy-duty car, which relates to the field of balance shaft cross beam assemblies, and adopts the technical scheme that the balance shaft cross beam assembly comprises two groove-shaped beams, the two groove-shaped beams are connected back to back, upper wing plates and lower wing plates of the two groove-shaped beams are respectively connected with an upper reinforcing plate and a lower reinforcing plate, and the upper reinforcing plate and the lower reinforcing plate are connected with the balance shaft cross beam assembly. The upper reinforcing plate and the lower reinforcing plate are both of an H-shaped structure, an upper frame connecting plate is vertically arranged on the side, close to a frame longitudinal beam, of the upper reinforcing plate, the upper frame connecting plate extends downwards, a lower frame connecting plate is vertically arranged on the side, close to the frame longitudinal beam, of the lower reinforcing plate, and the lower frame connecting plate extends upwards. The cross section thickness of the cross beam assembly can be increased, and the anti-load capacity is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of a balance shaft crossbeam assembly, in particular to a balance shaft crossbeam assembly for a heavy-duty vehicle. Background Art

[0002] The frame of a heavy-duty vehicle is usually equipped with a balance shaft crossbeam, whose main function is to strengthen the rigidity of the frame assembly at the balance shaft suspension. In order to simplify the structure of the balance shaft suspension system and improve the driving safety of the vehicle, a thrust rod structure is usually also provided here to prevent the front and rear and left and right displacement of the drive axle here. If the thrust rod support is connected to the frame alone, it will cause a great impact on the corresponding components, and there is a hidden danger of being easily damaged.

[0003] In the prior art, the balance shaft crossbeam assembly includes two trough-section crossbeams, an upper reinforcement plate and a lower reinforcement plate. The two trough-section beams are connected back to back. The upper reinforcement plate and the lower reinforcement plate are both L-shaped structures. The upper reinforcement plate and the lower reinforcement plate are symmetrically and vertically fixed at the four corners of the trough-section beams connected back to back, and the thrust rod support is arranged on the web of the trough-section beam.

[0004] Since the balance shaft of the heavy-duty vehicle frame is in a use environment with complex stress and relatively concentrated stress and torque, when the above technical solution is adopted, only the upper and lower wing plates of the two groove-section beams in the middle of the crossbeam assembly are subjected to stress, and the cross-section thickness is small and the load resistance capacity is weak. As a result, when the frame assembly is subjected to a large load, the balance shaft crossbeam assembly is easily torn, which reduces the performance of the frame assembly and affects the handling stability and safety of the heavy-duty vehicle. Utility Model Content

[0005] In order to solve the technical problem that the balance shaft crossbeam assembly in the above-mentioned prior art has weak load-bearing capacity, the utility model provides a balance shaft crossbeam assembly for a heavy-duty vehicle, which can increase the cross-sectional thickness of the crossbeam assembly and enhance the load-bearing capacity.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a heavy-duty vehicle balance shaft crossbeam assembly, including two trough beams, the two trough beams are connected back to back, the upper wing plates and lower wing plates of the two trough beams are respectively connected to the upper reinforcing plate and the lower reinforcing plate, the upper reinforcing plate and the lower reinforcing plate are both H-shaped structures, the upper reinforcing plate is vertically provided with an upper frame connecting plate on one side close to the frame longitudinal beam, the upper frame connecting plate extends downward, and the lower reinforcing plate is vertically provided with a lower frame connecting plate on one side close to the frame longitudinal beam, the lower frame connecting plate extends upward. By arranging the upper reinforcing plate and the lower reinforcing plate on the upper and lower surfaces of the two trough beams, the cross-sectional thickness of the balance shaft crossbeam body is enhanced, the load resistance is enhanced, it is not easy to deform and break, and the handling stability and safety of heavy-duty vehicles are improved.

[0007] Furthermore, the height of the upper frame connecting plate is d1, and the height of the lower frame connecting plate is d2, d1 < d2. By increasing the height of the lower frame connecting plate, the support strength of the frame longitudinal beam to the lower connecting plate can be enhanced, thereby ensuring the connection reliability of the lower connecting plate that bears a larger load.

[0008] Furthermore, both ends of the lower frame connecting plate are provided with chamfers, so as to avoid interference with other components and affect the installation arrangement of other components on the frame.

[0009] Furthermore, thrust rod supports are provided in the cavities of the two trough beams.

[0010] Furthermore, a middle reinforcement is provided at the web of the trough beam, the middle reinforcement is a trough structure, the upper wing plate and the lower wing plate of the middle reinforcement are respectively connected to the upper wing plate and the lower wing plate of the trough beam, and the thrust rod support is provided in the cavity of the middle reinforcement. The middle reinforcement strengthens the strength of the connection between the thrust rod support and the corresponding trough beam, and further enhances the strength of the trough beam.

[0011] Furthermore, a unloading groove is provided on both sides of the web of the middle reinforcement.

[0012] Further, the thrust rod support includes two mounting sub-bases, the mounting sub-base includes an upper mounting plate and a lower mounting plate, the upper mounting plate is connected to the upper wing plate of the middle reinforcement, the lower mounting plate is connected to the lower wing plate of the middle reinforcement, a mounting rod is arranged between the upper mounting plate and the lower mounting plate, and a thrust rod mounting hole is arranged on the mounting rod. By providing two mounting sub-bases, a simply supported beam can be formed for the end of the thrust rod, thereby enhancing the support stability of the thrust rod.

[0013] Furthermore, the mounting rod is eccentrically arranged between the upper mounting plate and the lower mounting plate, and the mounting rods of the two mounting sub-bases are close to each other. By eccentrically arranging the two mounting rods close to each other, interference between the end of the thrust rod and the upper and lower mounting plates during use can be avoided.

[0014] Furthermore, at least two thrust rod mounting holes are provided. By providing a plurality of thrust rod mounting holes, the thrust rod mounting positions of different vehicle models can be adapted, thereby improving the versatility of the crossbeam assembly.

[0015] Furthermore, unloading grooves 2 are provided on the upper wing plate and the lower wing plate of the trough beam, and unloading grooves 3 are provided on both sides of the web plate of the trough beam.

[0016] It can be seen from the above technical solutions that the utility model has the following advantages:

[0017] The utility model provides a heavy-duty vehicle balance shaft crossbeam assembly. By arranging an upper reinforcing plate and a lower reinforcing plate on the upper and lower surfaces of a groove-shaped beam, the cross-sectional thickness of the balance shaft crossbeam body is enhanced, the load resistance is enhanced, deformation and fracture are not easy, and the handling stability and safety of the heavy-duty vehicle are improved; by increasing the height of the lower frame connecting plate, the supporting strength of the frame longitudinal beam to the lower connecting plate can be enhanced, thereby ensuring the connection reliability of the lower connecting plate that bears a large load; by setting a chamfer, interference with other components is avoided, thereby affecting the installation arrangement of other components on the frame; by a middle reinforcing member, the strength of the connection between the thrust rod support and the groove-shaped beam is strengthened, and the strength of the groove-shaped beam is further enhanced; by setting two mounting sub-seats, a simply supported beam form can be formed for the end of the thrust rod, thereby enhancing the support stability of the thrust rod; by eccentrically arranging two mounting rods and arranging them close to each other, interference between the end of the thrust rod and the upper and lower mounting plates during use can be avoided; by setting a plurality of thrust rod mounting holes, the thrust rod mounting positions of different vehicle models can be adapted, thereby improving the versatility of the crossbeam assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The structure of the specific implementation method of the utility model is shown in FIG. Figure 1 .

[0020] Figure 2 The structure of the specific implementation method of the utility model is shown in FIG. Figure 2

[0021] Figure 3 The structure of the specific implementation method of the utility model is shown in FIG. Figure 3 .

[0022] Figure 4 This is a schematic diagram of the structure of a specific implementation method of the utility model after removing the upper reinforcing plate and the lower reinforcing plate.

[0023] Figure 5 It is a schematic diagram of the structure of installing the sub-base in a specific implementation manner of the utility model.

[0024] In the figure, 1, upper reinforcement plate; 2, lower reinforcement plate; 3, trough beam; 4, mounting sub-base; 5, middle reinforcement; 6, upper frame connecting plate; 7, lower frame connecting plate; 8, upper mounting plate; 9, mounting rod; 10, lower mounting plate; 11, thrust rod mounting hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] like Figures 1 to 3 As shown, this specific embodiment provides a heavy-duty vehicle balance shaft crossbeam assembly, including two trough beams 3, the two trough beams 3 are connected back to back, thrust rod supports are arranged in the cavity of the two trough beams 3, the upper wing plate and the lower wing plate of the trough beam 3 are respectively connected to the upper reinforcing plate 1 and the lower reinforcing plate 2, the upper reinforcing plate 1 and the lower reinforcing plate 2 are both H-shaped structures, the upper reinforcing plate 1 is vertically provided with an upper frame connecting plate 6 on one side close to the frame longitudinal beam, the upper frame connecting plate 6 extends downward, the lower reinforcing plate 2 is vertically provided with a lower frame connecting plate 7 on one side close to the frame longitudinal beam, the lower frame connecting plate 7 extends upward, the upper wing plate and the lower wing plate of the trough beam 3 are both provided with unloading grooves 2, and unloading grooves 3 are arranged on both sides of the web of the trough beam 3. By arranging the upper reinforcing plate 1 and the lower reinforcing plate 2 on the upper and lower surfaces of the two trough beams 3, the cross-sectional thickness of the balance shaft crossbeam body is enhanced, the load resistance is enhanced, deformation and fracture are not easy, and the handling stability and safety of the heavy-duty vehicle are improved.

[0027] like Figure 3 As shown, since the thrust rod is installed at a lower position, the lower reinforcing plate 2 is subjected to greater force. In order to ensure the connection strength of the lower reinforcing plate 2, in this specific embodiment, the height of the upper frame connecting plate 6 is d1, and the height of the lower frame connecting plate 7 is d2, d1<d2. By increasing the height of the lower frame connecting plate 7, the connection knot with the frame longitudinal beam can be enhanced, thereby ensuring the supporting strength of the frame longitudinal beam to the lower connecting plate, and further ensuring the connection reliability of the lower connecting plate that bears a larger load; in order to avoid interference with other components, both ends of the lower frame connecting plate 7 are provided with chamfers.

[0028] like Figure 4 As shown, in order to enhance the connection strength between the thrust rod support and the trough beam 3 and avoid the connection becoming a weak point, in this specific embodiment, a middle reinforcement 5 is provided at the web of the trough beam 3, and the middle reinforcement 5 is a trough structure. The upper wing plate and the lower wing plate of the middle reinforcement 5 are respectively connected to the upper wing plate and the lower wing plate of the trough beam 3, and the thrust rod support is arranged in the cavity of the middle reinforcement 5. The strength of the connection between the thrust rod support and the corresponding trough beam 3 is enhanced by the middle reinforcement 5, and the strength of the trough beam 3 is further enhanced; unloading grooves 1 are provided on both sides of the web of the middle reinforcement 5.

[0029] like Figure 4 and Figure 5 As shown, in this specific embodiment, the thrust rod support can adopt the following specific structure: the thrust rod support includes two mounting sub-bases 4, the mounting sub-base 4 includes an upper mounting plate 8 and a lower mounting plate 10 arranged oppositely, the upper mounting plate 8 is connected to the upper wing plate of the middle reinforcement 5, the lower mounting plate 10 is connected to the lower wing plate of the middle reinforcement 5, a mounting rod 9 is arranged between the upper mounting plate 8 and the lower mounting plate 10, and a thrust rod mounting hole 11 is arranged on the mounting rod 9. By arranging two mounting sub-bases 4, a simply supported beam form can be formed for the end of the thrust rod, thereby enhancing the support stability of the thrust rod; in order to enhance the adaptability of the present cross beam assembly to various vehicle models, at least two thrust rod mounting holes 11 are arranged, In this specific embodiment, two thrust rod mounting holes 11 are provided; since a vibration-damping rubber sleeve is provided at the end of the thrust rod and it jumps up and down with the movement of the suspension, the vibration-damping rubber sleeve ages as the use time increases, and the movement range of the thrust rod end increases, it is very likely that interference and collision with the thrust rod support will occur, affecting the movement of the thrust rod. In order to avoid this situation, the mounting rod 9 is eccentrically arranged between the upper mounting plate 8 and the lower mounting plate 10, and the mounting rods 9 of the two mounting sub-bases 4 are close to each other. In this way, the thrust rod end is arranged between the two mounting sub-bases 4, and there is no mounting plate under the thrust rod end, so that the movement range of the thrust rod end is increased and no interference and collision will occur.

[0030] In this specific embodiment, in order to prevent the bolts from loosening, rivets are used to connect the two trough beams 3, the trough beams 3 and the upper reinforcing plate 1, the lower reinforcing plate 2, and the mounting sub-base 4 and the middle reinforcing member 5.

[0031] From the above specific implementations, it can be seen that the utility model has the following beneficial effects:

[0032] 1. By arranging the upper reinforcing plate 1 and the lower reinforcing plate 2 on the upper and lower surfaces of the trough beam 3, the cross-sectional thickness of the balance shaft cross beam body is increased, the load resistance is enhanced, deformation and fracture are not easy, and the handling stability and safety of heavy-duty vehicles are improved;

[0033] 2. By increasing the height of the lower frame connecting plate 7, the supporting strength of the frame longitudinal beam on the lower connecting plate can be enhanced, thereby ensuring the connection reliability of the lower connecting plate that bears a large load;

[0034] 3. Avoid interference with other components by setting chamfers, which may affect the installation and arrangement of other components on the frame;

[0035] 4. The strength of the connection between the thrust rod support and the trough beam 3 is strengthened by the middle reinforcement 5, and the strength of the trough beam 3 is further enhanced;

[0036] 5. By providing two mounting sub-bases 4, the thrust rod end can be supported in the form of a simply supported beam, thereby enhancing the support stability of the thrust rod;

[0037] 6. By arranging the two mounting rods 9 eccentrically and close to each other, interference between the end of the thrust rod and the upper and lower mounting plates 10 during use can be avoided;

[0038] 7. By providing a plurality of thrust rod mounting holes 11, it is possible to adapt to the thrust rod mounting positions of different vehicle models, thereby improving the versatility of the crossbeam assembly.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heavy-duty vehicle balance shaft crossbeam assembly, comprising two trough beams (3), the two trough beams (3) being connected back to back, It is characterized in that The upper wing plates and the lower wing plates of the two trough beams (3) are respectively connected to the upper reinforcing plate (1) and the lower reinforcing plate (2); the upper reinforcing plate (1) and the lower reinforcing plate (2) are both H-shaped structures; an upper frame connecting plate (6) is vertically arranged on one side of the upper reinforcing plate (1) close to the frame longitudinal beam, and the upper frame connecting plate (6) extends downward; and a lower frame connecting plate (7) is vertically arranged on one side of the lower reinforcing plate (2) close to the frame longitudinal beam, and the lower frame connecting plate (7) extends upward.

2. The heavy-duty vehicle balance shaft crossbeam assembly as claimed in claim 1, It is characterized in that The height of the upper frame connecting plate (6) is d1, and the height of the lower frame connecting plate (7) is d2, where d1<d2.

3. The heavy-duty vehicle balance shaft crossbeam assembly as claimed in claim 2, It is characterized in that Both ends of the lower frame connecting plate (7) are provided with chamfers.

4. The heavy-duty vehicle balance shaft crossbeam assembly according to any one of claims 1 to 3, It is characterized in that Thrust rod supports are arranged in the cavities of the two groove beams (3).

5. The heavy-duty vehicle balance shaft crossbeam assembly as claimed in claim 4, It is characterized in that A middle reinforcement member (5) is arranged at the web of the trough beam (3), the middle reinforcement member (5) is a trough structure, the upper wing plate and the lower wing plate of the middle reinforcement member (5) are respectively connected to the upper wing plate and the lower wing plate of the trough beam (3), and the thrust rod support is arranged in the cavity of the middle reinforcement member (5).

6. The heavy-duty vehicle balance shaft crossbeam assembly as claimed in claim 5, It is characterized in that Unloading grooves are arranged on both sides of the web of the middle reinforcement member (5).

7. The heavy-duty vehicle balance shaft crossbeam assembly as claimed in claim 5, It is characterized in that The thrust rod support comprises two mounting sub-bases (4), the mounting sub-base (4) comprises an upper mounting plate (8) and a lower mounting plate (10), the upper mounting plate (8) is connected to the upper wing plate of the middle reinforcement (5), the lower mounting plate (10) is connected to the lower wing plate of the middle reinforcement (5), a mounting rod (9) is arranged between the upper mounting plate (8) and the lower mounting plate (10), and a thrust rod mounting hole (11) is arranged on the mounting rod (9).

8. The heavy-duty vehicle balance shaft crossbeam assembly as claimed in claim 7, It is characterized in that The mounting rod (9) is eccentrically arranged between the upper mounting plate (8) and the lower mounting plate (10), and the mounting rods (9) of the two mounting sub-bases (4) are close to each other.

9. The heavy-duty vehicle balance shaft crossbeam assembly as claimed in claim 7, It is characterized in that At least two thrust rod mounting holes (11) are provided.

10. The heavy-duty vehicle balance shaft crossbeam assembly as claimed in claim 4, It is characterized in that The upper wing plate and the lower wing plate of the trough beam (3) are both provided with unloading grooves 2, and both sides of the web plate of the trough beam (3) are both provided with unloading grooves 3.

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