Segmented reinforced commercial vehicle frame and commercial vehicle

Abstract

The utility model discloses a sectional reinforced commercial vehicle frame and a commercial vehicle, comprising: a longitudinal beam comprising a left longitudinal beam and a right longitudinal beam which are symmetrically arranged; the cross beams comprise a first cross beam, a second cross beam, a third cross beam, a fourth cross beam, a balanced suspension cross beam and a tail cross beam which are sequentially installed between the left longitudinal beam and the right longitudinal beam from front to back, and the two ends of the third cross beam and the two ends of the fourth cross beam are connected with the longitudinal beams through cross beam connecting plates; the lifting lug brackets comprise a front axle left lifting lug bracket mounted on the left longitudinal beam and a front axle right lifting lug bracket mounted on the right longitudinal beam, and the front axle left lifting lug bracket and the front axle right lifting lug bracket are symmetrically arranged; the segmented reinforcing beams are installed at the joint of the left longitudinal beam and the front axle left lifting lug support and the joint of the right longitudinal beam and the front axle right lifting lug support. According to the sectional reinforced commercial vehicle frame, the sectional reinforced mode is adopted, the large-stress portion of the frame under the design working condition is locally reinforced, and therefore the overall weight and cost of a frame assembly are reduced.

Description

Technical Field

[0001] This utility model relates to a segmented reinforced commercial vehicle frame and a commercial vehicle, belonging to the field of commercial vehicle frames. Background Technology

[0002] In commercial vehicle chassis systems, the longitudinal beams often employ a double-layer frame, such as a 280*80*(8+6)mm frame. This frame uses main beam steel with a height of 280mm, a width of 80mm, and thicknesses of 8mm and 6mm respectively, with the reinforcing beam being a single, integral structure. However, under actual design conditions, some areas experience lower stress and do not require reinforcement with additional beams. Using a single-structure reinforcing beam would increase the weight and cost of the entire chassis assembly, resulting in a waste of resources. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a segmented reinforced commercial vehicle frame and a commercial vehicle, which locally reinforces the parts of the commercial vehicle frame with high stress, thereby reducing the frame weight and cost.

[0004] To achieve the above objectives, this utility model employs a segmented reinforced commercial vehicle frame, comprising:

[0005] Longitudinal beams, including symmetrically arranged left and right longitudinal beams;

[0006] The crossbeam includes a first crossbeam, a second crossbeam, a third crossbeam, a fourth crossbeam, a balance suspension crossbeam, and a tail crossbeam, which are installed sequentially from front to back between the left longitudinal beam and the right longitudinal beam. The two ends of the third crossbeam and the fourth crossbeam are connected to the longitudinal beam through crossbeam connecting plates.

[0007] The front axle suspension bracket includes a left front axle suspension bracket installed on the left longitudinal beam and a right front axle suspension bracket installed on the right longitudinal beam, wherein the left and right front axle suspension brackets are arranged symmetrically.

[0008] The segmented reinforcing beams are installed at the connection between the left longitudinal beam and the left front axle hanger bracket, and at the connection between the right longitudinal beam and the right front axle hanger bracket.

[0009] In some embodiments, the crossbeams are parallel to each other and are installed perpendicularly between the left and right longitudinal beams.

[0010] In some embodiments, the beam connecting plate includes an upper beam connecting plate and a lower beam connecting plate.

[0011] In some embodiments, a reinforcing beam plate is installed between the beam connecting plates of the third and fourth crossbeams, and the reinforcing beam plate is connected to the beam connecting plate by rivets or bolts.

[0012] In some embodiments, the reinforcing beam plate includes a reinforcing beam upper plate and a reinforcing beam lower plate.

[0013] In some embodiments, the two ends of the tail beam and the balance suspension beam are connected to the left longitudinal beam and the right longitudinal beam by rivets or bolts.

[0014] In some embodiments, the two ends of the first crossbeam are connected to the left and right longitudinal beams by means of rivet connection, bolt connection, or a combination of rivet connection and bolt connection.

[0015] In some embodiments, cab suspension transition brackets are installed between the two ends of the first crossbeam and the left and right longitudinal beams.

[0016] A second aspect of this utility model also provides a commercial vehicle, wherein the segmented reinforced commercial vehicle frame is installed on the commercial vehicle.

[0017] Compared with existing technologies, the segmented reinforced commercial vehicle frame of this invention adopts a segmented reinforcement approach, locally strengthening areas of the frame with high stress under design conditions, thereby reducing the overall weight and cost of the frame assembly. The number, material, thickness, and shape of the segmented reinforcing beams in this invention can be flexibly adjusted according to the number and size of the crossbeams and the operating conditions of the frame. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial internal structure diagram of the present invention;

[0021] In the diagram: 1. First crossbeam, 2. Second crossbeam, 3. Left longitudinal beam, 4. Segmented reinforcing beam, 5. Front axle left hanger bracket, 6. Third crossbeam, 7. Fourth crossbeam, 8. Rear crossbeam, 9. Balance suspension crossbeam, 10. Right longitudinal beam, 11. Front axle right hanger bracket, 12. Upper connecting plate of the third crossbeam, 13. Upper plate of the reinforcing beam, 14. Upper connecting plate of the fourth crossbeam, 15. Lower connecting plate of the fourth crossbeam, 16. Lower plate of the reinforcing beam, 17. Lower connecting plate of the third crossbeam. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.

[0023] In the description of this utility model, it should be understood that the terms "left," "right," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0024] like Figure 1 , Figure 2 As shown, a segmented reinforced commercial vehicle frame includes longitudinal beams, crossbeams, hanger brackets, and segmented reinforcing beams 4. The longitudinal beams include a left longitudinal beam 3 and a right longitudinal beam 10 arranged symmetrically. The crossbeams include a first crossbeam 1, a second crossbeam 2, a third crossbeam 6, a fourth crossbeam 7, a balance suspension crossbeam 9, and a rear crossbeam 8, which are installed sequentially from front to back between the left longitudinal beam 3 and the right longitudinal beam 10. The two ends of the third crossbeam 6 and the fourth crossbeam 7 are connected to the longitudinal beams through crossbeam connecting plates.

[0025] The suspension bracket includes a front axle left suspension bracket 5 installed on the left longitudinal beam 3 and a front axle right suspension bracket 11 installed on the right longitudinal beam 10. The front axle left suspension bracket 5 and the front axle right suspension bracket 11 are arranged symmetrically.

[0026] Two segmented reinforcing beams 4 are provided, symmetrically installed at the connection points of the left longitudinal beam 3 and the left front axle hanger bracket 5, and at the connection points of the right longitudinal beam 10 and the right front axle hanger bracket 11. This invention uses 5mm thick segmented reinforcing beams 4 (such as those made of chassis beam steel) for localized reinforcement at the front axle hanger, ensuring that the stress on the chassis longitudinal beam at the front axle hanger is lower than the yield strength of the steel plate used in the chassis longitudinal beam. The segmented reinforcing beams 4 can be U-shaped bent pieces with a length sufficient to cover both the left and right front axle hanger brackets 5 and 11.

[0027] In some embodiments, such as Figure 1 As shown, the crossbeams are parallel to each other and are installed vertically between the left longitudinal beam 3 and the right longitudinal beam 10. The multiple crossbeams can increase the overall strength of the commercial vehicle frame.

[0028] In some embodiments, such as Figure 1 , Figure 2 As shown, both ends of the third crossbeam 6 are connected to the left longitudinal beam 3 and the right longitudinal beam 10 via the upper connecting plate 12 and the lower connecting plate 17 of the third crossbeam; both ends of the fourth crossbeam 7 are connected to the left longitudinal beam 3 and the right longitudinal beam 10 via the upper connecting plate 14 and the lower connecting plate 15 of the fourth crossbeam. This invention, through the crossbeam connecting plates, locally strengthens the connection points between the third crossbeam 6 and the fourth crossbeam 7, which are subject to greater stress in the middle of the frame, and the frame longitudinal beams, thereby improving the structural strength and torsional resistance of the frame assembly near the third crossbeam 6 and the fourth crossbeam 7.

[0029] In some embodiments, such as Figure 2 As shown, a reinforcing beam upper plate 13 is connected to the upper connecting plate 12 of the third crossbeam and the upper connecting plate 14 of the fourth crossbeam by rivets or bolts, and a reinforcing beam lower plate 16 is connected to the lower connecting plate 17 of the third crossbeam and the lower connecting plate 15 of the fourth crossbeam by rivets or bolts. This invention uses 4mm thick reinforcing beam plates (such as frame steel) at both ends of the third crossbeam 6 and the fourth crossbeam 7 to locally reinforce the connection between the longitudinal beam and the crossbeam in segments, so that the stress on the frame longitudinal beam at the positions of the third crossbeam 6 and the fourth crossbeam 7 is lower than the yield strength of the steel plate used in the frame longitudinal beam. By locally reinforcing the connection between the third crossbeam 6 and the fourth crossbeam 7, which are subject to greater stress in the middle of the frame, and the frame longitudinal beam, the structural strength and torsional resistance of the frame assembly near the third crossbeam 6 and the fourth crossbeam 7 are improved; wherein, the reinforcing beam plate can be a bent piece with a length not less than the length of the crossbeam connecting plate and an L-shaped cross section.

[0030] In some embodiments, such as Figure 1 As shown, the two ends of the tail crossbeam 8 are connected to the left longitudinal beam 3 and the right longitudinal beam 10 by rivets or bolts; the two ends of the balance suspension crossbeam 9 are connected to the left longitudinal beam 3 and the right longitudinal beam 10 by rivet connection, bolt connection, or a combination of rivet connection and bolt connection. Using rivet connection can effectively prevent parts from separating; using bolt connection can improve the ease of product maintenance; or, depending on the usage scenario, a combination of rivet connection and bolt connection can be used to both prevent parts from falling off due to loose bolts and improve the ease of product maintenance.

[0031] In some embodiments, both ends of the first crossbeam 1 are connected to the left longitudinal beam 3 and the right longitudinal beam 10 by means of rivet connection, bolt connection, or a combination of rivet connection and bolt connection; or, both ends of the first crossbeam 1 are connected to the left longitudinal beam 3 and the right longitudinal beam 10 by a cab suspension transition bracket. Rivet connection effectively prevents parts from detaching; bolt connection improves the ease of product maintenance; or, depending on the usage scenario, a combination of rivet connection and bolt connection can be used to both prevent parts from falling off due to loose bolts and improve the ease of product maintenance.

[0032] A second aspect of this utility model also provides a commercial vehicle, wherein the segmented reinforced commercial vehicle frame is installed on the commercial vehicle.

[0033] This invention improves the safety and stability of the chassis assembly by locally reinforcing the longitudinal beams at the front axle hanger, third crossbeam, and fourth crossbeam. Compared to conventional double-layer chassis, it reduces the weight of the chassis assembly by approximately 43 kg and the cost by approximately 320 yuan.

[0034] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this utility model and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

Claims

1. A segmented reinforced commercial vehicle frame, characterized in that, include: The longitudinal beams include a symmetrically arranged left longitudinal beam (3) and a right longitudinal beam (10); The crossbeam includes a first crossbeam (1), a second crossbeam (2), a third crossbeam (6), a fourth crossbeam (7), a balance suspension crossbeam (9), and a tail crossbeam (8) installed sequentially from front to back between the left longitudinal beam (3) and the right longitudinal beam (10). The two ends of the third crossbeam (6) and the fourth crossbeam (7) are connected to the longitudinal beams through crossbeam connecting plates. The front axle hanger bracket includes a front axle left hanger bracket (5) installed on the left longitudinal beam (3) and a front axle right hanger bracket (11) installed on the right longitudinal beam (10), wherein the front axle left hanger bracket (5) and the front axle right hanger bracket (11) are arranged symmetrically. The segmented reinforcing beam (4) is installed at the connection between the left longitudinal beam (3) and the left front axle hanger bracket (5), and at the connection between the right longitudinal beam (10) and the right front axle hanger bracket (11).

2. The segmented reinforced commercial vehicle frame according to claim 1, characterized in that, Each crossbeam is parallel to the others and is installed vertically between the left longitudinal beam (3) and the right longitudinal beam (10).

3. The segmented reinforced commercial vehicle frame according to claim 1, characterized in that, The beam connecting plate includes an upper beam connecting plate and a lower beam connecting plate.

4. A segmented reinforced commercial vehicle frame according to claim 1, characterized in that, A reinforcing beam plate is installed between the beam connecting plates of the third beam (6) and the fourth beam (7), and the reinforcing beam plate is connected to the beam connecting plate by rivets or bolts.

5. A segmented reinforced commercial vehicle frame according to claim 4, characterized in that, The reinforced beam plate includes an upper reinforced beam plate (13) and a lower reinforced beam plate (16).

6. A segmented reinforced commercial vehicle frame according to claim 1, characterized in that, The two ends of the tail beam (8) and the balance suspension beam (9) are connected to the left longitudinal beam (3) and the right longitudinal beam (10) by rivets or bolts.

7. A segmented reinforced commercial vehicle frame according to claim 1, characterized in that, The two ends of the first crossbeam (1) are connected to the left longitudinal beam (3) and the right longitudinal beam (10) by means of rivet connection, bolt connection or a combination of rivet connection and bolt connection.

8. A segmented reinforced commercial vehicle frame according to claim 7, characterized in that, The two ends of the first crossbeam (1) are fitted with cab suspension transition brackets between the left longitudinal beam (3) and the right longitudinal beam (10).

9. A commercial vehicle, characterized in that, The commercial vehicle is equipped with a segmented reinforced commercial vehicle frame as described in any one of claims 1-8.

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