Pure electric light truck chassis

Abstract

The utility model provides a pure electric light truck chassis, which relates to the field of pure electric light truck chassis, and adopts the technical scheme that the pure electric light truck chassis comprises a rear transverse stabilizer bar, the rear transverse stabilizer bar is arranged between a rear axle and a battery pack assembly, the rear transverse stabilizer bar comprises a transverse rod, and short arms are respectively arranged at two ends of the transverse rod; the two ends of the transverse rod are connected with the corresponding ends of the rear axle through the mounting supports respectively, the short arms are hinged to the corresponding longitudinal beams of the frame and located on the two sides of the battery pack assembly respectively, and an opening of the rear transverse stabilizer bar is opposite to the rear axle. The lower ends of the two shock absorbers are respectively and rotatably connected with the corresponding mounting brackets, and the upper ends of the two shock absorbers are respectively and rotatably connected with the corresponding longitudinal beams. The space of the chassis can be reasonably utilized, the rear transverse stabilizer bar is prevented from interfering with other components of the chassis such as a battery pack assembly and a rear axle air chamber, and the arrangement difficulty of the chassis is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pure electric light truck chassis, in particular to a pure electric light truck chassis. Background Art

[0002] Some types of commercial vehicles use a rear shock absorber system and are equipped with a rear anti-roll bar system, which makes the design of the fixed support space of the vehicle chassis more difficult.

[0003] In the prior art, a Chinese utility model patent with authorization publication number CN 220594584 U discloses a rear transverse stabilizer and shock absorber lower combined support, comprising a cast bracket body, wherein the cast bracket body is provided with a longitudinal fork arm in the longitudinal direction, and the longitudinal fork arm is connected to the end of the short arm of the stabilizer bar; the cast bracket body is provided with a transverse fork arm in the transverse direction, and the transverse fork arm is connected to the end of the shock absorber; the cast bracket body is provided with a mounting end surface at the connection between the bracket and the axle, and two bracket fixing connection holes are provided on the mounting end surface, and riding bolts are connected and fastened to the rear pressure plate, rear leaf spring, rear axle and combined support and matching nuts through the bracket fixing connection holes; this technical solution rationally utilizes compact space by means of integrated design, and at the same time realizes that the rear shock absorber and the rear transverse stabilizer bar are arranged at the lower rear side of the rear axle for connection and fixation.

[0004] However, with the development and application of pure electric light trucks, it is necessary to add a battery pack assembly between the front and rear axles. If the above technical solution is adopted for layout, the opening of the transverse stabilizer bar will face the rear axle, and the crossbar of the transverse stabilizer bar will be located at the bottom of the battery pack assembly, interfering with the battery pack assembly; if the transverse stabilizer bar is arranged at the rear of the rear axle, it will interfere with the rear axle air chamber at the rear of the rear axle, affecting its function. Utility Model Content

[0005] In order to solve the technical problem in the above-mentioned prior art that it is difficult to arrange a rear stabilizer bar on a pure electric light truck, the utility model provides a pure electric light truck chassis that can reasonably utilize the chassis space, avoid interference between the rear stabilizer bar and other chassis components such as the battery pack assembly and the rear axle air chamber, and reduce the difficulty of chassis layout.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a pure electric light truck chassis, including a frame, leaf spring assemblies are respectively provided on both sides of the frame, a front axle and a rear axle are provided on the frame, a battery pack assembly is provided between the front axle and the rear axle, the battery pack assembly is close to the rear axle, a rear axle air chamber is provided at the rear of the rear axle, and also includes a rear transverse stabilizer bar, the rear transverse stabilizer bar is arranged between the rear axle and the battery pack assembly, the rear transverse stabilizer bar includes a cross bar, short arms are respectively provided at both ends of the cross bar, the two ends of the cross bar are respectively connected to the corresponding ends of the rear axle through mounting brackets, the short arms are hinged to the corresponding longitudinal beams of the frame, the two short arms are respectively located on both sides of the battery pack assembly, and the opening of the rear transverse stabilizer bar faces away from the rear axle; it also includes two shock absorbers, the lower ends of the two shock absorbers are rotatably connected to the corresponding mounting brackets, and the upper ends of the two shock absorbers are rotatably connected to the corresponding longitudinal beams.

[0007] The utility model avoids interference between the rear lateral stabilizer bar and the battery pack assembly and the rear axle air chamber by integrating the rear lateral stabilizer bar and the shock absorber of the pure electric light truck chassis in the front part of the rear axle and making the opening of the rear lateral stabilizer bar face away from the rear axle, and avoids the rear lateral stabilizer bar and the shock absorber being arranged separately so as to greatly occupy the installation space of the chassis, and the utility model facilitates assembly and disassembly.

[0008] Furthermore, the mounting bracket includes a bracket body, and a limiting platform, a support shaft and a positioning bolt are coaxially arranged on one side of the bracket body in sequence. The support shaft is rotatably connected to the shock absorber, and a positioning nut is provided on the positioning bolt. A mounting fork arm is also provided on the bracket body, and a mounting groove is provided at the end of the mounting fork arm. The end of the cross bar passes through the mounting groove horizontally, and the end of the mounting fork arm is also detachably provided with a mounting plate.

[0009] The utility model arranges a support shaft on one side of the bracket body, the axis of the support shaft is parallel to the axis of the rear axle, and prevents the shock absorber from moving left and right through a limit platform and a positioning nut. During the bouncing of the rear axle, the shock absorber only rotates circumferentially around the support shaft, the force is simple, and it is beneficial to ensure the service life of the shock absorber.

[0010] Furthermore, the mounting fork arm includes an upper arm and a lower arm, and the ends of the upper arm and the lower arm are both provided with connecting holes, and bolts are provided in the connecting holes, and the bolts are used to connect the mounting plate.

[0011] Furthermore, reinforcing protrusions are provided on the upper surface of the upper arm and the lower surface of the lower arm at positions corresponding to the connecting holes.

[0012] Furthermore, a riding bolt is provided on the leaf spring assembly, a leaf spring seat is provided below the end of the rear axle, and two mounting holes are vertically provided on the bracket body. The riding bolt passes through the leaf spring seat and the corresponding mounting holes in sequence from top to bottom and is then provided with a nut.

[0013] The utility model realizes connection with the rear axle through the riding bolt and the leaf spring seat, avoids the need for additional connecting components, and reduces the occupation of chassis installation space.

[0014] Furthermore, two mounting bosses are respectively provided on the upper surface and the lower surface of the bracket body, and the mounting hole passes through the corresponding two mounting bosses.

[0015] The utility model reduces the finishing area while ensuring the assembly accuracy by arranging the mounting boss.

[0016] Furthermore, a weight-reducing groove 1 is provided on the bracket body.

[0017] Furthermore, a second weight-reducing groove is provided on the mounting fork arm.

[0018] Furthermore, the end of the short arm is rotatably connected to the balance clamp via a pin shaft, and a connecting rod is provided on the upper portion of the balance clamp, and the connecting rod is hinged to the longitudinal beam.

[0019] Furthermore, the mounting bracket is a cast integrated structure.

[0020] It can be seen from the above technical solutions that the present invention has the following advantages:

[0021] The utility model provides a pure electric light truck chassis, which avoids interference between the rear transverse stabilizer bar and the battery pack assembly and the rear axle air chamber by integrating the rear transverse stabilizer bar and the shock absorber of the pure electric light truck chassis at the front part of the rear axle and making the opening of the rear transverse stabilizer bar face away from the rear axle, and avoids the rear transverse stabilizer bar and the shock absorber being arranged separately, which greatly occupies the installation space of the chassis, and is convenient for assembly and disassembly; by arranging a support shaft on one side of the bracket body, the axis of the support shaft is parallel to the axis of the rear axle, and the shock absorber is prevented from moving left and right by a limit platform and a positioning nut, during the bouncing of the rear axle, the shock absorber only rotates circumferentially around the support shaft, and the force is simple, which is conducive to ensuring the service life of the shock absorber; the connection with the rear axle is achieved by riding bolts and leaf spring seats, which reduces the occupation of the chassis installation space; by providing mounting bosses, the finishing area is reduced while ensuring assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the local structure of a specific embodiment of the utility model Figure 1 .

[0024] Figure 2 This is a schematic diagram of the local structure of a specific embodiment of the utility model Figure 2 .

[0025] Figure 3 It is a structural schematic diagram of the mounting bracket in a specific embodiment of the present utility model.

[0026] In the figure, 1. Mounting boss; 2. Mounting hole; 3. Weight reduction groove 1; 4. Bracket body; 5. Limiting platform; 6. Support shaft; 7. Positioning bolt; 8. Mounting fork arm; 9. Connecting hole; 10. Mounting groove; 11. Rear axle; 12. Leaf spring assembly; 13. Frame; 15. Battery pack assembly; 16. Rear lateral stabilizer bar; 17. Balance clamp; 18. Riding bolt; 19. Mounting plate; 20. Nut; 21. Shock absorber; 22. Leaf spring seat. DETAILED DESCRIPTION

[0027] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0028] like Figure 1 and Figure 2As shown, this specific embodiment provides a pure electric light truck chassis, including a frame 13, a leaf spring assembly 12, a front axle, a rear axle 11, a battery pack assembly 15, an air chamber of the rear axle 11, a rear transverse stabilizer bar, and a shock absorber 21; the frame 13 includes two longitudinal beams, and a leaf spring assembly 12 is provided on the outer side of the longitudinal beam. The front axle and the rear axle 11 are provided on the frame 13. Since the rear axle 11 is an electric drive axle, a battery pack assembly 15 is provided between the front axle and the rear axle 11, and the battery pack assembly 15 is close to the rear axle 11, and the rear axle 11 air chamber is provided at the rear of the rear axle 11. The rear lateral stabilizer bar 16 is arranged between the rear axle 11 and the battery pack assembly 15. The rear lateral stabilizer bar 16 includes a cross bar with short arms at both ends. The two ends of the cross bar are connected to the corresponding ends of the rear axle 11 through mounting brackets, and the short arms are hinged to the longitudinal beams. The two short arms are located on both sides of the battery pack assembly 15, and the opening of the rear lateral stabilizer bar 16 faces away from the rear axle 11. In order to achieve an integrated layout, the lower ends of the two shock absorbers 21 are rotatably connected to the corresponding mounting brackets, and the upper ends of the two shock absorbers 21 are rotatably connected to the corresponding longitudinal beams.

[0029] This specific embodiment avoids interference between the rear lateral stabilizer bar 16 and the battery pack assembly 15 and the air chamber of the rear axle 11 by integrating the rear lateral stabilizer bar 16 and the shock absorber 21 of the pure electric light truck chassis in the front part of the rear axle 11 and making the opening of the rear lateral stabilizer bar 16 face away from the rear axle 11. At the same time, it avoids the rear lateral stabilizer bar 16 and the shock absorber 21 being arranged separately to greatly occupy the installation space of the chassis, and facilitates assembly and disassembly.

[0030] like Figure 3 As shown, in this specific embodiment, the mounting bracket can adopt the following specific structure: the mounting bracket includes a bracket body 4, and a limiting platform 5, a support shaft 6 and a positioning bolt 7 are coaxially arranged on one side of the bracket body 4 in sequence. The diameter of the limiting platform 5 is larger than the support shaft 6, and the support shaft 6 is rotatably connected to the shock absorber 21. A positioning nut 20 is provided on the positioning bolt 7. The positioning nut 20 and the limiting platform 5 cooperate to limit the shock absorber 21 to prevent it from moving laterally. At the same time, the limiting platform 5 enhances the connection strength between the support shaft 6 and the bracket body 4. A mounting fork arm 8 is also provided on the bracket body 4, and a mounting groove is provided at the end of the mounting fork arm 8. 10. The end of the crossbar passes through the mounting groove 10 transversely, and the end of the mounting fork arm 8 is also detachably provided with a mounting plate 19. Through this arrangement, the axis of the support shaft 6 is parallel to the axis of the rear axle 11. During the bouncing of the rear axle 11, the shock absorber 21 only rotates circumferentially around the support shaft 6, and the force is simple, which is conducive to ensuring the service life of the shock absorber 21; the mounting fork arm 8 includes an upper arm and a lower arm, and the ends of the upper arm and the lower arm are both provided with connecting holes 9, and bolts are provided in the connecting holes 9. The bolts are used to connect the mounting plate 19, and the upper surface of the upper arm and the lower surface of the lower arm are provided with reinforcing protrusions at positions corresponding to the connecting holes 9. The mounting bracket is a cast integrated structure.

[0031] like Figure 2 and Figure 3 As shown, a riding bolt 17 is provided on the leaf spring assembly 12, and a leaf spring seat 22 is provided below the end of the rear axle 11. In order to avoid providing additional connecting parts with the rear axle 11 and reduce the occupation of the chassis installation space, in this specific embodiment, two mounting holes 2 are vertically provided on the bracket body 4. The two legs of the riding bolt 17 pass through the holes on the leaf spring seat 22 and the corresponding mounting holes 2 from top to bottom in sequence, and then a nut 20 is provided. After this arrangement, the connection with the rear axle 11 is achieved with the help of the riding bolt 17 and the leaf spring seat 22, without the need for new connecting parts; as a preferred embodiment, two mounting bosses 1 are respectively provided on the upper and lower surfaces of the bracket body 4, and the mounting holes 2 pass through the corresponding two mounting bosses 1. During installation, the mounting boss 1 on the upper surface is assembled with the leaf spring seat 22, and the mounting boss 1 on the lower surface is assembled with the nut 20. By providing the mounting boss 1, the finishing area is reduced while ensuring the assembly accuracy.

[0032] like Figure 3 As shown, in order to achieve lightweighting, a weight-reducing groove 1 3 is provided on the bracket body 4 and a weight-reducing groove 2 is provided on the mounting fork arm 8.

[0033] like Figure 1 As shown, in this specific embodiment, the end of the short arm is rotatably connected to the balance clamp 17 through a pin shaft, and a connecting rod is provided on the upper part of the balance clamp 17, and the connecting rod is hinged to the longitudinal beam through a hinge seat.

[0034] From the above specific embodiments, it can be seen that the present invention has the following beneficial effects:

[0035] 1. By integrating the rear stabilizer bar 16 and shock absorber 21 of the pure electric light truck chassis in front of the rear axle 11 and with the opening of the rear stabilizer bar 16 facing away from the rear axle 11, interference between the rear stabilizer bar 16 and the battery pack assembly 15 and the air chamber of the rear axle 11 can be avoided. This also avoids the significant space occupation of the chassis by separate arrangements of the rear stabilizer bar 16 and shock absorber 21, and facilitates assembly and disassembly.

[0036] 2. By arranging the support shaft 6 on one side of the bracket body 4 and limiting the shock absorber 21 through the limit platform 5 and the positioning nut 20, the shock absorber 21 only rotates circumferentially around the support shaft 6 during the bounce of the rear axle 11, which simplifies the force distribution and helps to ensure the service life of the shock absorber 21.

[0037] 3. The connection with the rear axle 11 is achieved through the riding bolt 14 and the leaf spring seat 22, which reduces the installation space occupied by the chassis;

[0038] 4. By providing the mounting boss 1, the finishing area is reduced while ensuring assembly accuracy.

[0039] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one 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 is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pure electric light truck chassis, comprising a vehicle frame (13), leaf spring assemblies (12) are respectively provided on both sides of the vehicle frame (13), a front axle and a rear axle (11) are provided on the vehicle frame (13), a battery pack assembly (15) is provided between the front axle and the rear axle (11), the battery pack assembly (15) is close to the rear axle (11), and a rear axle (11) air chamber is provided at the rear of the rear axle (11), characterized in that: The vehicle further comprises a rear lateral stabilizer bar (16), the rear lateral stabilizer bar (16) being arranged between the rear axle (11) and the battery pack assembly (15), the rear lateral stabilizer bar (16) comprising a cross bar, short arms being respectively arranged at both ends of the cross bar, the two ends of the cross bar being respectively connected to corresponding ends of the rear axle (11) via mounting brackets, the short arms being hinged to corresponding longitudinal beams of the vehicle frame (13), the two short arms being respectively located on both sides of the battery pack assembly (15), and the opening of the rear lateral stabilizer bar (16) facing away from the rear axle (11); It also includes two shock absorbers (21), wherein the lower ends of the two shock absorbers (21) are rotatably connected to the corresponding mounting brackets, and the upper ends of the two shock absorbers (21) are rotatably connected to the corresponding longitudinal beams.

2. The pure electric light truck chassis according to claim 1, characterized in that: The mounting bracket comprises a bracket body (4), a limiting platform (5), a support shaft (6) and a positioning bolt (7) are coaxially arranged on one side of the bracket body (4), the support shaft (6) is rotatably connected to the shock absorber (21), a positioning nut (20) is arranged on the positioning bolt (7), and a mounting fork arm (8) is further arranged on the bracket body (4), a mounting groove (10) is provided at the end of the mounting fork arm (8), the end of the cross bar passes through the mounting groove (10) transversely, and a mounting plate (19) is also detachably provided at the end of the mounting fork arm (8).

3. The pure electric light truck chassis according to claim 2, characterized in that: The mounting fork arm (8) comprises an upper arm and a lower arm, and ends of the upper arm and the lower arm are both provided with connection holes (9), and bolts are provided in the connection holes (9), and the bolts are used to connect the mounting plate (19).

4. The pure electric light truck chassis according to claim 3, characterized in that: Reinforcement protrusions are provided at positions corresponding to the connection holes (9) on the upper surface of the upper arm and the lower surface of the lower arm.

5. The pure electric light truck chassis according to claim 2, characterized in that: A riding bolt (17) is provided on the leaf spring assembly (12), a leaf spring seat (22) is provided below the end of the rear axle (11), two mounting holes (2) are vertically provided on the bracket body (4), and a nut (20) is provided after the riding bolt (17) passes through the leaf spring seat (22) and the corresponding mounting hole (2) in sequence from top to bottom.

6. The pure electric light truck chassis according to claim 5, characterized in that: Two mounting bosses (1) are respectively provided on the upper surface and the lower surface of the bracket body (4) in a relative manner, and the mounting hole (2) passes through the corresponding two mounting bosses (1).

7. The pure electric light truck chassis according to claim 2, characterized in that: A weight-reducing groove (3) is provided on the bracket body (4).

8. The pure electric light truck chassis according to claim 7, characterized in that: The mounting fork arm (8) is provided with a second weight-reducing groove.

9. The pure electric light truck chassis according to any one of claims 1 to 8, characterized in that: The end of the short arm is rotatably connected to the balance clamp through a pin shaft. A connecting rod is provided on the upper part of the balance clamp, and the connecting rod is hinged to the longitudinal beam.

10. The pure electric light truck chassis according to claim 9, characterized in that: The mounting bracket is a cast integrated structure.

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