Vehicle swing arm, suspension assembly, vehicle chassis and vehicle

Abstract

The invention relates to a vehicle swing arm, a suspension assembly, a vehicle chassis and a vehicle, the vehicle swing arm comprises a first rod piece and a second rod piece, the first rod piece and the second rod piece are rotationally connected to a wheel end mounting part in a first plane, one end, opposite to the wheel end mounting part, of the first rod piece is connected with a first mounting part, and the other end, opposite to the wheel end mounting part, of the second rod piece is connected with a second mounting part; the end, opposite to the wheel end installation part, of the second rod piece is connected with a second installation part, a connecting rod used for adjusting the included angle between the first rod piece and the second rod piece is connected between the first rod piece and the second rod piece, and the first rod piece and the second rod piece are configured to be telescopic. When the vehicle swing arm is used for vehicle model development, the distance between the mounting parts can be adjusted through the first rod piece, the second rod piece and the connecting rod, so that the vehicle swing arm can adapt to various different vehicle models; in the process of verifying the reasonability and operation stability adjustment performance of four-wheel positioning parameters in vehicle development, the vehicle swing arm can be mounted on a vehicle, and the adjustment of wheel camber parameters and the like can be realized by adjusting the distance between the mounting parts.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle development, and in particular, to a vehicle swing arm, a suspension assembly, a vehicle chassis and a vehicle. Background Art

[0002] In the process of developing new models, vehicle swing arms are needed to calibrate the rationality of four-wheel alignment parameters, handling stability adjustment performance, etc. However, the installation points of the swing arms corresponding to different models are different, so it is necessary to develop new vehicle swing arms for the new models according to their actual sizes. In the prior art, vehicle swing arms are generally sheet metal stamping and welding. The process requires the sheet metal mold to be made first, and then the auxiliary tooling fixture is welded after the sheet metal is stamped and formed. The manufacturing process is complex, the development cycle is long, and the development cost is high. Summary of the invention

[0003] An object of the present disclosure is to provide a vehicle swing arm, a suspension assembly, a vehicle chassis and a vehicle, so as to at least partially solve the problems existing in the related art.

[0004] In order to achieve the above-mentioned objectives, the present disclosure provides a vehicle swing arm, comprising: a first rod and a second rod, wherein the first rod and the second rod are respectively rotatably connected to a wheel end mounting portion for mounting a wheel assembly in a first plane, an end of the first rod opposite to the wheel end mounting portion is connected to a first mounting portion for connecting to a vehicle suspension, and an end of the second rod opposite to the wheel end mounting portion is connected to a second mounting portion for connecting to a vehicle suspension, wherein a connecting rod for adjusting the angle between the first rod and the second rod in the first plane is connected, and the first rod and the second rod are configured to be retractable.

[0005] Optionally, one end of the connecting rod is rotatably connected to the first rod member in the first plane, and the other end of the connecting rod is rotatably connected to the second rod member in the first plane, and the connecting rod is configured to be retractable.

[0006] Optionally, the first rod member includes a first adjustment sleeve provided with an internal thread and a first threaded rod and a second threaded rod respectively screwed on two ends of the first adjustment sleeve, and the thread rotation directions of the first threaded rod and the second threaded rod are opposite; the second rod member includes a second adjustment sleeve provided with an internal thread and a third threaded rod and a fourth threaded rod respectively screwed on two ends of the second adjustment sleeve, and the thread rotation directions of the third threaded rod and the fourth threaded rod are opposite; and the connecting rod includes a third adjustment sleeve provided with an internal thread and a fifth threaded rod and a sixth threaded rod respectively screwed on two ends of the third adjustment sleeve, and the thread rotation directions of the fifth threaded rod and the sixth threaded rod are opposite.

[0007] Optionally, the first rod member also includes a first locking nut screwed on the first threaded rod and a second locking nut screwed on the second threaded rod; the second rod member also includes a third locking nut screwed on the third threaded rod and a fourth locking nut screwed on the fourth threaded rod; and the connecting rod also includes a fifth locking nut screwed on the fifth threaded rod and a sixth locking nut screwed on the sixth threaded rod.

[0008] Optionally, a plurality of first slots are formed on an outer surface of the first adjustment sleeve; a plurality of second slots are formed on an outer surface of the second adjustment sleeve; and a plurality of third slots are formed on an outer surface of the third adjustment sleeve.

[0009] Optionally, the first rod member forms a first ball head cavity facing the second rod member, the second rod member forms a second ball head cavity facing the first rod member, one end of the connecting rod forms a first ball head for extending into the first ball head cavity, and the other end of the connecting rod forms a second ball head for extending into the second ball head cavity.

[0010] Optionally, the outer side of the wheel end mounting portion is sleeved with two first bearings and a second bearing arranged in sequence along a direction perpendicular to the first plane, the first rod is connected to the outer ring of the first bearing, and the second rod is connected to the outer ring of the second bearing.

[0011] Optionally, one end of the first rod opposite to the wheel end mounting portion is rotatably connected to the first mounting portion in the first plane, and one end of the second rod opposite to the wheel end mounting portion is rotatably connected to the second mounting portion in the first plane.

[0012] Optionally, the first mounting portion is detachably connected to the first rod, the second mounting portion is detachably connected to the second rod, and the wheel end mounting portion is detachably connected to the first rod and the second rod.

[0013] According to a second aspect of the present disclosure, a suspension assembly is provided, comprising the above-mentioned vehicle swing arm.

[0014] According to a third aspect of the present disclosure, a vehicle chassis is provided, comprising the above-mentioned suspension assembly.

[0015] According to a fourth aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned vehicle chassis.

[0016] By using the above technical solution, when the vehicle swing arm is used for the development of a new vehicle model, on the one hand, the distance between any two of the first mounting portion, the second mounting portion and the wheel-end mounting portion and the angle between the first rod and the second rod can be adjusted by the cooperation of the first rod, the second rod and the connecting rod, so that the vehicle swing arm can be suitable for various different vehicle models, without the need to redevelop the swing arm for the new vehicle model, thereby reducing the development cost and development cycle; on the other hand, in the process of verifying the rationality of the four-wheel alignment parameters and the handling stability adjustment performance of the new vehicle model, the vehicle swing arm can be first installed on the new vehicle model, and then the wheel camber parameters, etc. can be adjusted by telescoping the first rod and the second rod.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of a vehicle swing arm according to an example of the present disclosure.

[0020] Description of Reference Numerals

[0021] 110-first mounting part; 120-second mounting part; 130-wheel end mounting part; 210-first rod; 220-second rod; 230-connecting rod; 310-first adjustment sleeve; 311-first slot; 320-second adjustment sleeve; 321-second slot; 330-third adjustment sleeve; 331-third slot; 410-first threaded rod; 411-first part; 412-second part; 420-second threaded rod; 421-third part; 422-fourth part; 430-third Three threaded rods; 431-fifth part; 432-sixth part; 440-fourth threaded rod; 441-seventh part; 442-eighth part; 450-fifth threaded rod; 460-sixth threaded rod; 510-first locking nut; 520-second locking nut; 530-third locking nut; 540-fourth locking nut; 550-fifth locking nut; 560-sixth locking nut; 610-first ball head cavity; 620-second ball head cavity; 630-first ball head; 640-second ball head. DETAILED DESCRIPTION

[0022] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0023] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", may be defined based on the direction in which the relevant components are actually used, or may be based on the structure itself. For example: the first rod member includes a first adjustment sleeve provided with an "internal thread", which means that the internal thread is formed on the inner wall surface of the first adjustment sleeve; the "outer surface" of the first adjustment sleeve forms a plurality of first grooves, which means that the first grooves are formed on the outer surface of the first adjustment sleeve; one end of the connecting rod forms a first ball head for extending into the "inside" of the first ball head cavity, which means that the first ball head extends into the accommodating space of the first ball head cavity.

[0024] In addition, in the present disclosure, the terms "first", "second", etc. are used to distinguish one element from another element, and have no order or importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0025] In order to facilitate the understanding of the present disclosure, it is necessary to explain that the vehicle swing arm is usually used in pairs, that is, it is divided into an upper swing arm and a lower swing arm. The vehicle swing arm is connected between the vehicle suspension and the wheel through its own mounting structure to support the vehicle. As part of the suspension system, the swing arm can alleviate the bumps and vibrations during vehicle driving and provide a more comfortable driving experience. The swing arm shown in the present disclosure is not limited to an upper swing arm or a lower swing arm.

[0026] Reference Figure 1 The present disclosure exemplarily shows a vehicle swing arm, including a first rod 210 and a second rod 220, the first rod 210 and the second rod 220 are respectively connected to the wheel end mounting portion 130 for mounting the wheel assembly in a first plane, the first rod 210 is connected to the first mounting portion 110 for connecting to the vehicle suspension at one end opposite to the wheel end mounting portion 130, and the second rod 220 is connected to the second mounting portion 120 for connecting to the vehicle suspension at one end opposite to the wheel end mounting portion 130. Among them, a connecting rod 230 for adjusting the angle between the first rod 210 and the second rod 220 in the first plane is connected, and the first rod 210 and the second rod 220 are configured to be retractable. The present disclosure does not limit the first mounting portion 110, the second mounting portion 120 and the wheel end mounting portion 130. For example, in the embodiment of the present disclosure, the first mounting portion 110 and the second mounting portion 120 can be mounting bushings for mounting on the vehicle suspension, and the wheel end mounting portion 130 can be a ball head seat for mounting the wheel assembly. It should be noted that, in order to facilitate the description and understanding of the technical solution, the present disclosure defines the above-mentioned “first plane”, which specifically refers to the plane where the first mounting portion 110 , the second mounting portion 120 and the wheel-end mounting portion 130 are located together.

[0027] The present disclosure does not limit the assembly relationship between the connecting rod 230 and the first rod 210 and the second rod 220. Figure 1 In the illustrated embodiment, the connecting rod 210 can be connected to the first rod 210 and the second rod 220 at a position close to the middle, and the three are configured in an A-type, or in some other embodiments, the three can also be configured in a triangular shape, etc., as long as the connecting rod 230 can adjust the angle between the first rod 210 and the second rod 220. For the convenience of description, the present disclosure refers to the spacing between the first mounting portion 110 and the second mounting portion 120 as the first spacing, the spacing between the wheel end mounting portion 130 and the first mounting portion 110 as the second spacing, and the spacing between the wheel end mounting portion 130 and the second mounting portion 120 as the third spacing. In actual adjustment, only one of the first spacing, the second spacing, and the third spacing can be adjusted according to needs, or more of the first spacing, the second spacing, and the third spacing can also be adjusted (the adjustment can be achieved by telescoping the first rod 210 and the second rod 220, and changing the angle between the first rod 210 and the second rod 220).

[0028] By using the above technical solution, when the vehicle swing arm is used for the development of a new vehicle model, on the one hand, the distance between any two of the first mounting portion 110, the second mounting portion 120 and the wheel-end mounting portion 130 and the angle between the first rod 210 and the second rod 220 can be adjusted by the first rod 210, the second rod 220 and the connecting rod 230, so that the vehicle swing arm can be suitable for various different vehicle models, without the need to redevelop the swing arm for the new vehicle model, thereby reducing the development cost and development cycle; on the other hand, in the process of verifying the rationality of the four-wheel alignment parameters and the handling stability adjustment performance of the new vehicle model, the vehicle swing arm can be first installed on the new vehicle model, and then the wheel camber parameters, etc. can be adjusted by telescoping the first rod 210 and the second rod 220.

[0029] Reference Figure 1 In the embodiment of the present disclosure, the connecting rod 230 can be rotatably connected to the first rod 210 at one end in the first plane, and the other end can be rotatably connected to the second rod 220 in the first plane, and the connecting rod 230 is configured to be retractable. With such a design, when it is necessary to adjust the angle between the first rod 210 and the second rod 220, it can be achieved by retracting the connecting rod 230, and the connecting rod 230 is rotatably connected to the first rod 210 and the second rod 220 respectively, so as to avoid the interference of the conditional process structure. When the connecting rod 230 is retracted, the first rod 210 and the second rod 220 can be synchronously rotated in the first plane relative to the wheel end mounting part 130 to approach or move away from each other. This symmetrical adjustment can make the vehicle swing arm adjustment more convenient and quick.

[0030] The present disclosure does not limit the connection method between the first rod 210 and the first mounting portion 110 and the second rod 220 and the second mounting portion 120. For example, in some embodiments, the first rod 210 can be fixedly connected to the first mounting portion 110, and the second rod 220 can be fixedly connected to the second mounting portion 120. In addition, in some other embodiments, the end of the first rod 210 opposite to the wheel end mounting portion 130 can be rotatably connected to the first mounting portion 110 in the first plane, and the end of the second rod 220 opposite to the wheel end mounting portion 130 can be rotatably connected to the second mounting portion 120 in the first plane. Such a design, compared with the aforementioned "fixed connection", can allow the vehicle swing arm to be adjusted in more types of size and shape, improve the applicability of the swing arm, so as to adapt to more types of new models. For example, when the first mounting portion 110 is a mounting bushing, the first rod 210 can adjust the angle between it and the mounting bushing according to needs to meet different installation requirements (the aforementioned "fixed connection" embodiment cannot be achieved).

[0031] The present disclosure does not limit how the first rod 210 can achieve rotation relative to the first mounting portion 110 in the first plane. For example, the end of the first rod 210 can be provided with a column perpendicular to the first plane, and the first mounting portion 110 can be provided with a column hole for inserting the column. The two can be relatively rotated by the column and the column hole. Regarding how the second rod 220 and the second mounting portion 120 can achieve relative rotation in the first plane, reference can be made to the connection method between the first rod 210 and the first mounting portion 110, which will not be repeated here.

[0032] Reference Figure 1In the embodiment of the present disclosure, the first rod 210 may include a first adjustment sleeve 310 provided with an internal thread and a first threaded rod 410 and a second threaded rod 420 respectively screwed on both ends of the first adjustment sleeve 310, and the first threaded rod 410 and the second threaded rod 420 have opposite threading directions, so that when the first adjustment sleeve 310 is screwed, the first threaded rod 410 and the second threaded rod 420 can move in opposite directions (synchronously approach each other or move away from each other). The second rod 220 may include a second adjustment sleeve 320 provided with an internal thread and a third threaded rod 430 and a fourth threaded rod 440 respectively screwed on both ends of the second adjustment sleeve 320, and the third threaded rod 430 and the fourth threaded rod 440 have opposite threading directions, so that when the second adjustment sleeve 320 is screwed, the third threaded rod 430 and the fourth threaded rod 440 can move in opposite directions (synchronously approach each other or move away from each other). The connecting rod 230 may include a third adjusting sleeve 330 provided with an internal thread and a fifth threaded rod 450 and a sixth threaded rod 460 respectively screwed on two ends of the third adjusting sleeve 330, and the threads of the fifth threaded rod 450 and the sixth threaded rod 460 are screwed in opposite directions, so that when the third adjusting sleeve 330 is screwed, the fifth threaded rod 450 and the sixth threaded rod 460 can move in opposite directions (synchronously approach each other or move away from each other). In actual operation, the first rod 210 can be controlled to be extended and retracted by screwing the first adjusting sleeve 310, thereby adjusting the spacing between the first mounting portion 110 and the wheel end mounting portion 130, the second rod 220 can be controlled to be extended and retracted by screwing the second adjusting sleeve 320, thereby adjusting the spacing between the second mounting portion 120 and the wheel end mounting portion 130, and the connecting rod 230 can be controlled to be extended and retracted by screwing the third adjusting sleeve 330, thereby driving the first rod 210 and the second rod 220 to rotate, thereby adjusting the angle between the first rod 210 and the second rod 220. In addition to the above-mentioned embodiment of the threaded sleeve and the threaded rod, in some other embodiments, the first rod 210, the second rod 220 and the connecting rod 230 can also be hydraulic telescopic rods, and the present disclosure does not limit this.

[0033] Reference Figure 1In the embodiment of the present disclosure, the first rod 210 may further include a first locking nut 510 screwed on the first threaded rod 410 and a second locking nut 520 screwed on the second threaded rod 420. The first locking nut 510 and the second locking nut 520 are respectively located on both sides of the first adjustment sleeve 310. When it is necessary to adjust the length of the first rod 210, the first locking nut 510 and the second locking nut 520 are respectively screwed away from the first adjustment sleeve 310 so that the extension and retraction of the first rod 210 can be controlled by screwing the first adjustment sleeve 310. After the extension and retraction of the first rod 210 are adjusted to the right position, the first locking nut 510 and the second locking nut 520 are screwed in the opposite direction so that the two can press the first adjustment sleeve 310 from both ends to prevent the first adjustment sleeve 310 from rotating due to vibration and other factors during use, causing the first rod 210 to extend and retract. Similarly, in order to prevent the second rod 220 and the connecting rod 230 from telescoping during use, in an embodiment of the present disclosure, the second rod 220 may further include a third locking nut 530 screwed on the third threaded rod 430 and a fourth locking nut 540 screwed on the fourth threaded rod 440, and the connecting rod 230 may further include a fifth locking nut 550 screwed on the fifth threaded rod 450 and a sixth locking nut 560 screwed on the sixth threaded rod 460.

[0034] In order to conveniently screw the first adjustment sleeve 310, the second adjustment sleeve 320 and the third adjustment sleeve 330, refer to Figure 1 In the embodiment of the present disclosure, the outer surface of the first adjustment sleeve 310 can form a plurality of first slots 311, the outer surface of the second adjustment sleeve 320 can form a plurality of second slots 321, and the outer surface of the third adjustment sleeve 330 can form a plurality of third slots 331. With such a design, when the size of the vehicle swing arm needs to be adjusted, the corresponding slot can be clamped with a wrench and the corresponding adjustment sleeve can be driven to rotate by turning the wrench. The present disclosure does not limit the number of the first slot 311, the second slot 321, and the third slot 331, which can be two, three, etc.

[0035] Reference Figure 1In the embodiment of the present disclosure, the first rod 210 may be formed with a first ball head cavity 610 facing the second rod 220, the second rod 220 may be formed with a second ball head cavity 620 facing the first rod 210, one end of the connecting rod 230 may be formed with a first ball head 630 for extending into the first ball head cavity 610, and the other end of the connecting rod 230 may be formed with a second ball head 640 for extending into the second ball head cavity 620. With such a design, the connecting rod 230 can be rotated in the first plane compared with the first rod 210 and the second rod 220, so as to allow the connecting rod 230 to be telescopically connected between the first rod 210 and the second rod 220 (the connecting rod 230 changes symmetrically with the first rod 210 and the second rod 220 when extending and retracting). In addition to the above-mentioned ball head connection, in some other embodiments, circular holes penetrating along a direction perpendicular to the first plane can be formed at both ends of the connecting rod 230, and the first rod 210 and the second rod 220 can be formed into cylinders for extending into the corresponding circular holes. The connecting rod 230 can rotate relative to the first rod 210 and the second rod 220 by cooperating with the circular holes and the cylinders. The present disclosure does not impose any restrictions on this.

[0036] The present disclosure does not limit how the first rod 210 and the second rod 220 can achieve rotation relative to the wheel end mounting portion 130. For example, in some embodiments, the outer side of the wheel end mounting portion 130 may be sleeved with two first bearings and second bearings (not shown in the figure) arranged in sequence in a direction perpendicular to the first plane, and the first rod 210 may be connected to the outer ring of the first bearing so that it can be rotated relative to the wheel end mounting portion 130 with the help of the outer ring of the first bearing. The second rod 220 may be connected to the outer ring of the second bearing so that it can be rotated relative to the wheel end mounting portion 130 with the help of the outer ring of the second bearing. In addition, in some other embodiments, the relative rotation may also be achieved by the cooperation of the circular hole and the cylinder similar to the above description, and the present disclosure does not limit this.

[0037] In the embodiment of the present disclosure, the first mounting portion 110 can be detachably connected to the first rod 210, the second mounting portion 120 can be detachably connected to the second rod 220, and the wheel-end mounting portion 130 can be detachably connected to the first rod 210 and the second rod 220. With such a design, when the mounting structures corresponding to different vehicle models are different or there is damage to the mounting portion, the corresponding first mounting portion 110, the second mounting portion 120 and the wheel-end mounting portion 130 can be replaced as needed without the need to redevelop the swing arm.

[0038] The present disclosure does not limit how the first mounting portion 110, the second mounting portion 120, and the wheel end mounting portion 130 are detachably connected to the corresponding rods. Figure 1In some embodiments, the first threaded rod 410 may include a first portion 411 and a second portion 412 that are detachably connected, the second threaded rod 420 may include a third portion 421 and a fourth portion 422 that are detachably connected, the third threaded rod 430 may include a fifth portion 431 and a sixth portion 432 that are detachably connected, and the fourth threaded rod 440 may include a seventh portion 441 and an eighth portion 442 that are detachably connected. With such a design, when any one of the first mounting portion 110, the second mounting portion 120, and the wheel-end mounting portion 130 needs to be replaced, it is only necessary to disassemble the corresponding threaded rod and replace the corresponding mounting portion. It should be noted that in Figure 1 In the illustrated embodiment, the two detachable parts may be a threaded sleeve and a threaded rod, respectively. When the wheel-end mounting portion 130 needs to be disassembled, the connecting rod 230 needs to be separated from the first rod 210 and the second rod 220. In the above embodiment, when the first mounting portion 110 is replaced, the first mounting portion 110 and the first part need to be replaced at the same time. In some other embodiments, the rocker arm may also be configured such that the end of the first rod 210 is directly detachably connected to the first mounting portion 110 and the wheel-end mounting portion 130, and the end of the second rod 220 is directly detachably connected to the second mounting portion 120 and the wheel-end mounting portion 130. The present disclosure does not limit this.

[0039] According to a second aspect of the present disclosure, a suspension assembly is provided, including the above-mentioned vehicle swing arm. Since the suspension assembly has all the beneficial effects of the above-mentioned vehicle swing arm, they are not described in detail here.

[0040] According to a third aspect of the present disclosure, a vehicle chassis is provided, comprising the above-mentioned suspension assembly. Since the vehicle chassis has all the beneficial effects of the above-mentioned suspension assembly, they are not described in detail here.

[0041] According to a fourth aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned vehicle chassis. Since the vehicle has all the beneficial effects of the above-mentioned vehicle chassis, they are not described in detail here.

[0042] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0044] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle swing arm, characterized in that: include: A first rod (210) and a second rod (220), wherein the first rod (210) and the second rod (220) are respectively rotatably connected in a first plane to a wheel end mounting portion (130) for mounting a wheel assembly, an end of the first rod (210) opposite to the wheel end mounting portion (130) is connected to a first mounting portion (110) for connecting to a vehicle suspension, and an end of the second rod (220) opposite to the wheel end mounting portion (130) is connected to a second mounting portion (120) for connecting to a vehicle suspension, A connecting rod (230) is connected between the first rod (210) and the second rod (220) for adjusting the angle between the first rod (210) and the second rod (220) in the first plane, and the first rod (210) and the second rod (220) are configured to be retractable.

2. The vehicle swing arm according to claim 1, characterized in that: One end of the connecting rod (230) is rotatably connected to the first rod (210) in the first plane, and the other end is rotatably connected to the second rod (220) in the first plane, and the connecting rod (230) is configured to be retractable.

3. The vehicle swing arm according to claim 2, characterized in that: The first rod (210) comprises a first adjustment sleeve (310) provided with an internal thread, and a first threaded rod (410) and a second threaded rod (420) respectively screwed on two ends of the first adjustment sleeve (310), wherein the threads of the first threaded rod (410) and the second threaded rod (420) are screwed in opposite directions; The second rod (220) comprises a second adjustment sleeve (320) provided with an internal thread, and a third threaded rod (430) and a fourth threaded rod (440) respectively screwed on two ends of the second adjustment sleeve (320), wherein the threads of the third threaded rod (430) and the fourth threaded rod (440) are screwed in opposite directions; and The connecting rod (230) comprises a third adjustment sleeve (330) provided with an internal thread, and a fifth threaded rod (450) and a sixth threaded rod (460) respectively screwed on two ends of the third adjustment sleeve (330), wherein the threads of the fifth threaded rod (450) and the sixth threaded rod (460) are screwed in opposite directions.

4. The vehicle swing arm according to claim 3, characterized in that: The first rod (210) further comprises a first locking nut (510) screwed onto the first threaded rod (410) and a second locking nut (520) screwed onto the second threaded rod (420); The second rod (220) further comprises a third locking nut (530) screwed on the third threaded rod (430) and a fourth locking nut (540) screwed on the fourth threaded rod (440); and The connecting rod (230) further comprises a fifth locking nut (550) screwed onto the fifth threaded rod (450) and a sixth locking nut (560) screwed onto the sixth threaded rod (460).

5. The vehicle swing arm according to claim 3, characterized in that: A plurality of first slots (311) are formed on the outer surface of the first adjustment sleeve (310); A plurality of second slots (321) are formed on the outer surface of the second adjustment sleeve (320); and A plurality of third clamping grooves (331) are formed on the outer surface of the third adjustment sleeve (330).

6. The vehicle swing arm according to claim 2, characterized in that: The first rod (210) is formed with a first ball head cavity (610) facing the second rod (220), the second rod (220) is formed with a second ball head cavity (620) facing the first rod (210), one end of the connecting rod (230) is formed with a first ball head (630) for extending into the first ball head cavity (610), and the other end of the connecting rod (230) is formed with a second ball head (640) for extending into the second ball head cavity (620).

7. The vehicle swing arm according to claim 1, characterized in that: The outer side of the wheel end mounting portion (130) is sleeved with two first bearings and a second bearing which are arranged in sequence in a direction perpendicular to the first plane; the first rod (210) is connected to the outer ring of the first bearing; and the second rod (220) is connected to the outer ring of the second bearing.

8. The vehicle swing arm according to claim 1, characterized in that: One end of the first rod (210) opposite to the wheel end mounting portion (130) is rotatably connected to the first mounting portion (110) within the first plane, and one end of the second rod (220) opposite to the wheel end mounting portion (130) is rotatably connected to the second mounting portion (120) within the first plane.

9. The vehicle swing arm according to claim 1, characterized in that: The first mounting portion (110) is detachably connected to the first rod (210), the second mounting portion (120) is detachably connected to the second rod (220), and the wheel end mounting portion (130) is detachably connected to the first rod (210) and the second rod (220).

10. A suspension assembly, characterized in that: The vehicle swing arm comprises the vehicle swing arm described in any one of claims 1 to 9.

11. A vehicle chassis, characterized in that: Includes the suspension assembly as claimed in claim 10.

12. A vehicle, characterized in that: Comprising the vehicle chassis of claim 11.

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