A lateral stabilization structure and chassis assembly

Abstract

The application provides a kind of transverse stabilizing structure and chassis assembly, comprising: transverse stabilizer bar is arranged on the frame;The transverse stabilizer bar both sides are rotatably connected to the frame by support stabilizing structure;Wherein, the support stabilizing structure is fixed on the frame;The transverse stabilizer bar both sides are gap fit with the frame;The part of the transverse stabilizer bar both sides that extends the frame is provided with transmission structure;The transverse stabilizer bar is rotatably connected with corresponding suspension structure by the transmission structure of two sides respectively.The transverse stabilizing structure provided by the application has high overall structural stability, long service life, and will not cause impact on the cab, improving the comfort of passengers.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more specifically, to a lateral stabilization structure and chassis assembly. Background Technology

[0002] Currently, the suspension assembly of special off-road vehicles is used to support the vehicle body, buffer the impact force transmitted to the vehicle from the road surface, and filter vibration. When the vehicle is traveling on off-road terrain, it may encounter various situations, such as sinking, tilting, bumping, and losing ground. At the same time, the vehicle's sharp turns can also cause body roll.

[0003] The role of the stabilizer bar in the suspension system is to prevent the vehicle from rolling over under these conditions. The stabilizer bar connects the two sides of the suspension system. When the two sides of the suspension bounce unevenly, such as when one side is under force, the force can be transmitted to the other side through the stabilizer bar. The elasticity of the bar will prevent the wheel from lifting, thereby keeping the vehicle body as balanced as possible and improving the roll stiffness of the suspension. Therefore, the stabilizer bar plays an irreplaceable role in preventing the vehicle from rolling over laterally and improving ride comfort.

[0004] In CN211918312U, a patent for a lateral stabilizer bar system and vehicle, the middle support connection structure of the lateral stabilizer bar is fixed to the vehicle body, and the two sides are connected to the control arms through bushings. The application of this stabilizer bar structure has limitations. For example, for non-load-bearing bodies, special vehicles, and vehicles with cab suspension, the cab and chassis have relatively large displacement. If the middle section is connected to the vehicle body and the two ends are connected to the chassis structure, the stabilizer bar itself will be subjected to large stresses, which will easily lead to fatigue and damage. At the same time, bumpy road conditions will cause a large impact on the cab, affecting the comfort of the occupants.

[0005] The present invention provides a lateral stabilization structure in which the lateral stabilizer bar is rotatably connected to the vehicle frame through supporting stabilization structures on both sides; at the same time, the two sides of the lateral stabilizer bar are connected to the suspension structure through a transmission structure. Compared with the prior art, the lateral stabilizer bar of this application has no relative displacement between the vehicle and the vehicle frame when the vehicle moves in complex road conditions. The lateral stabilizer bar structure has high stability, long service life, and will not cause impact to the cab. Summary of the Invention

[0006] The purpose of this application is to provide a lateral stabilization structure and chassis assembly that overcomes the technical problems existing in the prior art. The specific solution is as follows:

[0007] This application provides a lateral stabilization structure, including: a lateral stabilizer bar disposed on the vehicle frame;

[0008] Both sides of the lateral stabilizer bar are rotatably connected to the vehicle frame via a support stabilizing structure; wherein, the support stabilizing structure is fixed to the vehicle frame; and the two sides of the lateral stabilizer bar are clearance-fitted to the vehicle frame.

[0009] Both sides of the stabilizer bar that extend out of the frame are connected to a transmission structure; the stabilizer bar is connected to the corresponding suspension structure through the transmission structures on both sides.

[0010] Furthermore, the supporting and stabilizing structure includes: a support frame fixed to the inner side of the vehicle frame, a clamping structure fixed to the support frame, and a limiting structure fixed inside the clamping structure; the support frame and the vehicle frame are provided with a first through hole and a second through hole for the lateral stabilizer bar to pass through; wherein, the lateral stabilizer bar forms a clearance fit with the support frame at the first through hole through the clamping structure, and forms a clearance fit with the vehicle frame at the second through hole.

[0011] Furthermore, the clamping structure includes: an upper pressure block, a lower pressure block, and a connecting positioning bushing; wherein, the bottom of the upper pressure block and the top of the lower pressure block are provided with inner grooves that match the external shape of the connecting positioning bushing; the connecting positioning bushing is clamped and fixed on the support frame by the upper pressure block and the lower pressure block;

[0012] The connecting positioning bushing has a mounting hole in the middle for the transverse stabilizer bar to pass through, and the side wall of the connecting positioning bushing has a notch.

[0013] Lubricating grease is provided between the lateral stabilizer bar and the connecting positioning bushing.

[0014] Furthermore, the limiting structure includes an annular limiting protrusion arranged inside the connecting positioning bushing, and correspondingly, a limiting groove that cooperates with the annular limiting protrusion is provided at a corresponding position on the outer surface of the transverse stabilizer.

[0015] Furthermore, the support frame includes: a longitudinal plate fixed to the outside of the vehicle frame, connecting plates disposed on both sides of the longitudinal plate, and a transverse plate disposed in the middle of the connecting plate; wherein, a first through hole is arranged on the longitudinal plate between the two transverse plates; a reinforcing plate is also provided on the side of each transverse plate away from the connecting plate; each transverse plate is also provided with a fixing hole; wherein, the bolt passes through the upper pressure block, the fixing hole and the lower pressure block to lock and fix the upper pressure block and the lower pressure block to the two transverse plates.

[0016] Furthermore, each of the transmission structures includes: a rotating arm drivenly connected to one end of the lateral stabilizer bar, a locking member disposed at the end of the lateral stabilizer bar for fixing the rotating arm, and an adjusting member rotatably connected to the rotating arm; the rotating arm and the lateral stabilizer bar are splinedly connected, and the rotating arm is provided with a bent portion in the middle; the end of the lateral stabilizer bar is provided with an external thread that engages with the locking member.

[0017] Furthermore, the adjusting component is a telescopic rod; both the upper and lower ends of the telescopic rod are rotatably connected to the rotary arm and suspension structure; at least one locking clamp is provided on the outside of the adjusting component.

[0018] Furthermore, the suspension structure includes: an upper control arm, a lower control arm, and a gas spring; wherein, the outer end of the upper control arm is rotatably connected to the wheel assembly, the front middle section is rotatably connected to the lower end of the adjusting member, and the inner end is rotatably connected to the main connecting frame fixed on the vehicle frame; the outer end of the lower control arm is rotatably connected to the wheel assembly, the rear middle section is rotatably connected to the lower end of the gas spring, and the inner end is rotatably connected to the main connecting frame; the upper end of the gas spring is rotatably connected to the upper support; and the upper support is fixed to the outside of the vehicle frame.

[0019] Furthermore, a limit block is provided at the corresponding position on the top of the upper control arm along the lower outer edge of the vehicle frame.

[0020] A chassis assembly having the aforementioned lateral stabilizing structure installed.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The present invention provides a lateral stabilization structure and chassis assembly, in which the two sides of the lateral stabilizer bar are rotatably connected to the vehicle frame through a support stabilization structure. At the same time, under the action of the support stabilization structure, the lateral stabilizer bar and the vehicle frame are in clearance fit, and there is no relative displacement between the lateral stabilizer bar and the vehicle frame when the lateral stabilizer bar rotates. This ensures that the vehicle reduces lateral roll and improves ride comfort when driving on complex road conditions such as off-road roads. The overall structure and performance are stable and the service life is long. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a laterally stable structure;

[0024] Figure 2 A schematic diagram of an exploded structure for lateral stability;

[0025] Figure 3 This is a structural diagram of the support frame;

[0026] Figure 4 This is a schematic diagram of the connection structure of the lateral stabilizing structure on the base plate assembly.

[0027] Figure 5 for Figure 4 A structural diagram from another angle.

[0028] In the picture:

[0029] 1. Frame;

[0030] 2. Lateral stabilizer bar;

[0031] 3. Supports a stable structure;

[0032] 31. Support frame; 310. Longitudinal plate; 311. Connecting plate; 312. Horizontal plate; 313. Reinforcing plate;

[0033] 32. Clamping structure; 320. Upper clamping block; 321. Lower clamping block; 322. Connecting positioning bushing; 323. Notch;

[0034] 33. Limiting structure; 330. Limiting groove;

[0035] 34. First via;

[0036] 35. Guide bracket;

[0037] 4. Transmission structure; 41. Swing arm; 42. Locking component; 43. Adjusting component; 44. Bending part; 45. Locking clamp;

[0038] 5. Suspension structure; 51. Upper control arm; 52. Lower control arm; 53. Gas spring; 54. Upper support;

[0039] 6. Main connecting frame;

[0040] 7. Limit block;

[0041] 8. Wheel-side assembly;

[0042] 9. Steering assembly; 91. Bracket; 92. Power steering gear; 93. Power steering arm; 94. Cross link; 95. Vertical shaft; 96. Steering tie rod; 97. Side tie rod;

[0043] 100. Ball-head structure. Detailed Implementation

[0044] To make the purpose, technical solution, and advantages of this application clearer, the following will be described in conjunction with the appendix. Figure 1-5 This application will be described in further detail. It is obvious that the described embodiments are merely some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments described herein without inventive effort are within the scope of protection of this application.

[0045] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0046] Example 1

[0047] This application provides a lateral stabilization structure, including: a lateral stabilizer bar 2 disposed on a vehicle frame 1;

[0048] Both sides of the lateral stabilizer bar 2 are rotatably connected to the vehicle frame 1 via a support and stabilizing structure 3; wherein, the support and stabilizing structure 3 is fixed to the vehicle frame 1; and the two sides of the lateral stabilizer bar 2 are clearance-fitted to the vehicle frame 1.

[0049] The portions of the lateral stabilizer bar 2 extending out of the frame 1 on both sides are driven to be connected to a transmission structure 4; the lateral stabilizer bar 2 is rotatably connected to the corresponding suspension structure 5 through the transmission structures 4 on both sides.

[0050] Specifically, the present invention uses a support and stabilization structure 3 to rotatably connect the lateral stabilizer bar 2 to the vehicle frame 1. That is, the support and stabilization structure 3 supports and limits the lateral stabilizer bar 2, thereby forming a clearance fit between the lateral stabilizer bar 2 and the vehicle frame 1. The lateral stabilizer bar 2 is driven to connect with the transmission structure 4, which reduces the stress on the lateral stabilizer bar 2 under complex working conditions, increases its service life, reduces the overall body roll of the vehicle, and provides better ride comfort.

[0051] Optionally, the support and stabilizing structure 3 includes: a support frame 31 fixed to the inner side of the frame 1, a clamping structure 32 fixed to the support frame 31, and a limiting structure 33 fixed inside the clamping structure 32; the support frame 31 and the frame 1 are respectively provided with a first through hole 34 and a second through hole for the lateral stabilizer bar 2 to pass through; wherein, the lateral stabilizer bar 2 forms a clearance fit with the support frame 31 at the first through hole 34 through the clamping structure 32, and forms a clearance fit with the frame 1 at the second through hole.

[0052] It is understood that the lateral stabilizer bar 2 is rotatably connected to the support frame 31 by the clamping structure 32, and the connection position between the lateral stabilizer bar 2 and the support frame 31 is kept constant by the limiting structure 33. The transmission structure 4 cooperates with the suspension structure 5 to ensure that there is no relative displacement between the lateral stabilizer bar 2 and the frame 1 when the vehicle is on a bumpy road, thus avoiding stress concentration in the lateral stabilizer bar 2 and the resulting fatigue and damage.

[0053] Optionally, the clamping structure 32 includes: an upper clamping block 320, a lower clamping block 321, and a connecting positioning bushing 322; wherein, the bottom of the upper clamping block 320 and the top of the lower clamping block 321 are provided with inner grooves that match the external shape of the connecting positioning bushing 322; the connecting positioning bushing 322 is fixed at the inner groove and clamped and fixed to the support frame 31 by the upper clamping block 320 and the lower clamping block 321;

[0054] The connecting positioning bushing 322 has a mounting hole in the middle for the transverse stabilizer bar 2 to pass through, and the side wall of the connecting positioning bushing 322 has a notch 323; wherein, the connecting positioning bushing 322 is fitted onto the transverse stabilizer bar 2 by opening the notch 323.

[0055] Lubricating grease is provided between the lateral stabilizer bar 2 and the connecting positioning bushing 322.

[0056] The top of the upper pressure block 320 is provided with a guide bracket 35 for fixing the wire harness.

[0057] Specifically, the clamping structure 32 is used to support the lateral stabilizer bar 2. By setting the clamping structure 32, the lateral stabilizer bar 2 is clearance-fitted with the support frame 31 and the vehicle frame 1 on both sides. The connecting positioning bushing 322 is made of hard plastic. It can be understood that when the connecting positioning bushing 322 is worn, the notch 323 can be opened for replacement.

[0058] It should be noted that the connecting positioning bushing 322 provides auxiliary support for the lateral stabilizer bar 2. During use, relative friction will occur between the lateral stabilizer bar 2 and the connecting positioning bushing 322. Therefore, there is grease inside the connecting positioning bushing 322 to reduce the frictional resistance of the lateral stabilizer bar 2.

[0059] Optionally, the limiting structure 33 includes an annular limiting protrusion arranged inside the connecting positioning bushing 322, and correspondingly, a limiting groove 330 that cooperates with the annular limiting protrusion is provided at a corresponding position on the outer surface of the transverse stabilizer 2.

[0060] Specifically, the advantage of this design is that by connecting the annular limiting protrusion inside the positioning bushing 322 and the limiting groove 330 on the outer surface of the lateral stabilizer bar 2, radial movement of the lateral stabilizer bar 2 is prevented, ensuring that there is no relative displacement between the frame 1 and the lateral stabilizer bar 2, reducing the stress on the lateral stabilizer bar 2 itself, and avoiding fatigue and damage to the lateral stabilizer bar 2.

[0061] Optionally, the support frame 31 includes: a longitudinal plate 310 fixed to the inner side of the frame 1, connecting plates 311 disposed on both sides of the longitudinal plate 310, and a transverse plate 312 disposed in the middle of the connecting plate 311; wherein, a first through hole 34 is arranged on the longitudinal plate 310 between the two transverse plates, and the center line connecting the two transverse plates 312 passes through the center point of the first through hole 34 and the second through hole; a reinforcing plate 313 is also provided on the side of each transverse plate 312 away from the connecting plate 311; a fixing hole is also provided on each transverse plate 312; wherein, the bolt passes through the guide bracket 35, the upper pressure block 320, the fixing hole of the transverse plate 312 and the lower pressure block 321 in sequence, and the guide bracket 35, the upper pressure block 320 and the lower pressure block 321 are locked and fixed on the two transverse plates 312 by nuts.

[0062] Specifically, the upper pressure block 320 and the lower pressure block 321 are supported and fixed by the support frame 31, and the connecting positioning bushing 322 is installed and fixed by the upper pressure block 320 and the lower pressure block 321, so as to realize the installation and positioning of the lateral stabilizer bar 2, thereby ensuring that the lateral stabilizer bar 2 and the frame 1 are in clearance fit.

[0063] The support frame 31 has a clearance space between its two horizontal plates 312 for the transverse stabilizer bar 2 to pass through. A reinforcing plate 313 is provided on the side of the horizontal plate 312 near the first through hole 34. The upper and lower end faces of the reinforcing plate 313 are arc-shaped. The advantage of this design is that it improves the overall connection strength of the support frame 31 and prevents the two horizontal plates 312 from deforming, which would affect the use of the transverse stabilizer bar 2.

[0064] Optionally, each of the transmission structures 4 includes: a rotating arm 41 drivenly connected to one end of the transverse stabilizer bar 2, a locking member 42 disposed at the end of the transverse stabilizer bar 2 for fixing the rotating arm 41, and an adjusting member 43 rotatably connected to the rotating arm 41; the rotating arm 41 and the transverse stabilizer bar 2 are splined connected, and the rotating arm 41 is provided with a bent portion 44 in the middle; the end of the transverse stabilizer bar 2 is provided with an external thread that engages with the locking member 42.

[0065] It is understood that this application drives the connection between the lateral stabilizer bar 2 and the transmission structure 4, that is, the force on the frame 1 is transmitted to the transmission structure 4 through the lateral stabilizer bar 2. The external force on the frame 1 is buffered by the transmission structure 4 and the suspension structure 5, thereby keeping the vehicle balanced, preventing the vehicle from rolling over laterally, improving the ride comfort of the vehicle, and significantly improving the user's comfort.

[0066] Specifically, the outer surfaces of the portions of the lateral stabilizer bar 2 extending out of the frame 1 on both sides are provided with external splines. Correspondingly, one end of the swing arm 41 is provided with a drive hole, and the inner surface of the drive hole is provided with an internal spline that matches the external spline. The swing arm 41 is fixed to the lateral stabilizer bar 2 by a locking member 42. It can be understood that the advantage of the spline connection is that it makes the mechanical transmission stability between the lateral stabilizer bar 2 and the swing arm 41 better. Moreover, since the connection between the lateral stabilizer bar 2 and the transmission structure 4 is set as a separate connection structure, compared with the one-piece lateral stabilizer bar 2 structure in the prior art, this design greatly reduces the stress concentration of the lateral stabilizer bar 2. Secondly, the comfort is also greatly improved, and the manufacturing, installation and maintenance of the lateral stabilizer bar 2 are simplified.

[0067] It should be further noted that, through the bend 44 provided in the middle of the swing arm 41, the steering tie rod 96 of the steering assembly 9 is avoided, and the design of the bend 44 also increases the overall strength of the swing arm 41.

[0068] Optionally, the adjusting member 43 is a telescopic rod; the upper and lower ends of the telescopic rod are rotatably connected to the rotating arm 41 and the suspension structure 5 through the ball joint structure 100; two locking clamps 45 are provided on the outside of the adjusting member 43.

[0069] Specifically, in its initial state, the adjusting component 43 adjusts the extension degree of the telescopic rod, thereby facilitating the installation and connection of the telescopic rod to the swing arm 41 and the suspension structure 5. After assembly, the telescopic rod body is locked by the locking clamp 45, so that the telescopic rod body and the internal rod are fixed by clamping. The advantage of this design is that the adjusting component 43 greatly facilitates the operation process of workers in confined spaces, saving time and labor costs.

[0070] It should be noted that the ball head structure 100 of this application includes a ball head sleeve and a ball head pin. The ball head sleeve can be sleeved on the head of the ball head pin, and the two are rotatably connected. In this embodiment, the ball head sleeve is integrally fixed to the top of the telescopic rod. One end of the ball head pin passes through the rotating arm 41 and is fixed to the rotating arm 41 by the locking nut and snap ring on the ball head pin.

[0071] Optionally, the suspension structure 5 includes: an upper control arm 51, a lower control arm 52, and a gas spring 53; wherein, the left end of the upper control arm 51 is rotatably connected to the wheel assembly 8 via a ball joint structure 100, the front middle section is rotatably connected to the lower end of the adjusting member 43 via a ball joint structure 100, and the right end is rotatably connected to the main connecting frame 6 fixed on the vehicle frame 1 via a ball joint structure 100; the left end of the lower control arm 52 is rotatably connected to the wheel assembly 8 via a ball joint structure 100, the rear middle section is rotatably connected to the lower end of the gas spring 53 via a ball joint structure 100, and the right end is rotatably connected to the main connecting frame 6 via a ball joint structure 100; the upper end of the gas spring 53 is rotatably connected to the upper support 54 via a ball joint structure 100; the upper support 54 is fixed to the outside of the vehicle frame 1.

[0072] Specifically, a limiting block 7 is provided at the top of the upper control arm 51 on the outer side of the frame 1; the limiting block 7 protrudes from the bottom part of the frame 1 and is used to limit the upper limit position of the wheel assembly 8.

[0073] This application uses a gas spring 53 and a limiting block 7 to limit the lower and upper limit positions of the wheel assembly 8, respectively, to further ensure the smoothness and stability of the vehicle during driving.

[0074] Optionally, the top of the wheel assembly 8 is driven to the steering assembly 9; the steering assembly 9 includes: a power steering unit 92 fixed on a bracket 91; the top of the power steering unit 92 is driven to one end of a lateral link 94 via a power steering arm 93; the other end of the lateral link 94 is driven to the upper end of a vertical shaft 95 via another power steering arm 93; wherein, both ends of the lateral link 94 are rotatably connected to the corresponding power steering arm 93 via ball joint structures 100; the vertical shaft 95 is rotatably connected to the bracket 91; the bracket 91 is fixed to the bottom of the frame 1 and located at the front end of the main connecting frame 6; the rear end of each power steering arm 93 is rotatably connected to one end of a steering tie rod 96 via a ball joint structure 100, and the other end of the steering tie rod 96 passes through the gap between the bracket 91 and the main connecting frame 6 and is rotatably connected to one end of a side tie rod 97 via a ball joint structure 100; the side tie rod 97 is fixed to the wheel assembly 8.

[0075] It is understood that in this application, the optimized design of the lateral stabilization structure reduces the degree of lateral roll and improves ride comfort when the vehicle is driving on complex road conditions such as off-road roads. Under the condition of bearing large impact loads, the overall structure and performance are stable and the service life is longer. Secondly, the lateral stabilizer bar 2 and the transmission structure 4 of this application are connected by splines, which avoids uneven force or unreasonable load distribution at the connection point. While ensuring reliability, it reduces the difficulty of installation, maintenance and manufacturing. Finally, this application has a high space utilization rate at the bottom of the frame 1, which facilitates the arrangement of other components.

[0076] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

Claims

1. A lateral stabilizing structure, characterized by, The utility model relates to a kind of vehicle frame and suspension structure, including: Transverse stabilizer bar (2) is arranged on the frame (1); The transverse stabilizer bar (2) is rotatably connected to the frame (1) by support stabilizing structure (3) on both sides;Wherein, the support stabilizing structure (3) is fixed on the frame (1);The transverse stabilizer bar (2) is gap fit with the frame (1) on both sides; The part of transverse stabilizer bar (2) that extends out of frame (1) is connected with transmission structure (4) on both sides;The transverse stabilizer bar (2) is rotatably connected with corresponding suspension structure (5) by transmission structure (4) on both sides respectively; The support stabilizing structure (3) includes: support frame (31) fixed on the inner side of frame (1), compression structure (32) fixed on support frame (31) and limiting structure (33) fixed in compression structure (32);The support frame (31) and frame (1) are respectively provided with first via hole (34) and second via hole for transverse stabilizer bar (2) to pass through at corresponding position;Wherein, the transverse stabilizer bar (2) is gap fit with support frame (31) at first via hole (34) by compression structure (32), and gap fit with frame (1) at second via hole; The compression structure (32) includes: upper pressing block (320), lower pressing block (321) and connecting positioning bushing (322);Wherein, the bottom of upper pressing block (320) and the top of lower pressing block (321) are provided with inner recess groove matched with the outer shape of connecting positioning bushing (322);The connecting positioning bushing (322) is clamped and fixed on support frame (31) by upper pressing block (320) and lower pressing block (321); The connecting positioning bushing (322) is provided with mounting hole for transverse stabilizer bar (2) to pass through in the middle, and the side wall of connecting positioning bushing (322) is provided with an opening (323); Lubricating grease is arranged between the transverse stabilizer bar (2) and the connecting positioning bushing (322); The support frame (31) includes: longitudinal plate (310) fixed on the inner side of frame (1), connecting plate (311) arranged on both sides of longitudinal plate (310), transverse plate (312) arranged in the middle of connecting plate (311);Wherein, first via hole (34) is arranged on longitudinal plate (310) between two transverse plates (312);Each transverse plate (312) is further provided with reinforcing plate (313) on the side away from connecting plate (311);Each transverse plate (312) is further provided with fixing hole;Wherein, the upper pressing block (320), the fixing hole and the lower pressing block (321) are locked and fixed by bolt on two transverse plates (312).

2. The lateral stabilizing structure according to claim 1, characterized in that, The limiting structure (33) includes: annular limiting protrusion arranged in the connecting positioning bushing (322), and correspondingly, limiting groove (330) matched with the annular limiting protrusion is arranged at corresponding position on the outer surface of transverse stabilizer bar (2).

3. The roll stability structure according to claim 2, characterized by Each of the transmission structures (4) comprises: a swing arm (41) drivingly connected to one end of the transverse stabilizer bar (2), a locking member (42) arranged at the end of the transverse stabilizer bar (2) for fixing the swing arm (41), and an adjusting member (43) rotationally connected to the swing arm (41); the swing arm (41) is in spline connection with the transverse stabilizer bar (2), and a bending portion (44) is arranged in the middle of the swing arm (41); the end of the transverse stabilizer bar (2) is provided with an external thread for locking with the locking member (42).

4. The lateral stabilizing structure according to claim 3, characterized in that The adjusting member (43) is a telescopic rod; the upper end and the lower end of the telescopic rod are rotationally connected to the swing arm (41) and the suspension structure (5) respectively; and at least one locking clamp (45) is arranged outside the body of the adjusting member (43).

5. The lateral stabilizing structure according to claim 4, characterized in that The suspension structure (5) comprises an upper control arm (51), a lower control arm (52) and an oil-gas spring (53); the outer end of the upper control arm (51) is rotationally connected to the wheel assembly (8), the middle front end is rotationally connected to the lower end of the adjusting member (43), and the inner end is rotationally connected to the main connecting frame (6) fixed on the vehicle frame (1); the outer end of the lower control arm (52) is rotationally connected to the wheel assembly (8), the middle rear end is rotationally connected to the lower end of the oil-gas spring (53), and the inner end is rotationally connected to the main connecting frame (6); the upper end of the oil-gas spring (53) is rotationally connected to the upper support (54); and the upper support (54) is fixed on the outer side of the vehicle frame (1).

6. The lateral stabilizing structure according to claim 5, characterized in that A limiting block (7) is arranged at the corresponding position on the top of the upper control arm (51) and on the outer side of the vehicle frame (1).

7. A chassis assembly characterized by, The transverse stabilizing structure of any one of claims 1-6 is installed.

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