Full-floating four-airbag active correction air suspension

Abstract

The invention discloses a full-floating type four-air-bag active correction air suspension, and relates to the technical field of commercial vehicles and semitrailers, the full-floating type four-air-bag active correction air suspension comprises a shaft body, correction mounting mechanisms, air bags, damping mechanisms and connecting mechanisms, the mounting mechanisms are arranged on the shaft body, the air bags are arranged on the shaft body through the correction mounting mechanisms, the damping mechanisms are arranged among the air bags, and the connecting mechanisms are arranged between the air bags. The connecting mechanism is arranged at the top of the airbag. By means of the splayed design of the integrated top plate, the angle of 10-30 degrees arranged at the air bag connecting position and the angle of 10-30 degrees arranged at the air bag platform, when the shaft body encounters road bumping or impact, the angle of 10-30 degrees can be kept at the center position all the time, tire bearing caused by axle distance deviation is avoided, the shock absorber body and the shaft body are arranged in parallel, and the shock absorber body is not prone to falling off. The shock absorber body and the shock absorber support form a splayed shape, left-right balance of the shaft body can be actively corrected, full-floating type front-back-left-right automatic balance and active correction are achieved, and the shaft body is always in a linear and vertical running state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of commercial vehicles and semitrailer, in particular to a full-floating four air bag active correction air suspension. BACKGROUND

[0002] As a high-end suspension system of commercial vehicles and semitrailer, air suspension can significantly improve the smoothness and stability of vehicle driving, reduce cargo loss, and has a very broad application prospect in the field of logistics transportation.

[0003] The air bag of the traditional air suspension system is usually installed vertically or at a fixed angle, and the shock absorber layout is single, which leads to the fact that the vehicle cannot effectively suppress the axle deviation and torsion under complex road conditions, not only causing abnormal tire wear, i.e., tire eating phenomenon, but also seriously affecting the driving stability and maneuverability. At the same time, the existing system lacks an active correction mechanism, and it is difficult to adjust the axle attitude in real time to respond to road impact, especially under heavy load or high speed working conditions, the axle is easy to deviate from the ideal running track, which not only shortens the service life of the tire, but also increases the driving safety hazard. SUMMARY

[0004] The purpose of the present application is to provide a full-floating four air bag active correction air suspension to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a full-floating four air bag active correction air suspension, comprising:

[0006] a shaft body;

[0007] a correction mounting mechanism arranged on the shaft body;

[0008] an air bag arranged on the shaft body through the correction mounting mechanism;

[0009] a shock absorbing mechanism arranged between the air bags;

[0010] a connecting mechanism arranged at the top end of the air bag for connecting adjacent air bags.

[0011] Preferably, the correction mounting mechanism comprises:

[0012] a bottom plate symmetrically arranged at the bottom end of the shaft body, a hollow slot for welding with the shaft body being formed in the middle part of the bottom plate;

[0013] an octagon plate arranged at the top end of the shaft body;

[0014] a U-shaped bolt sleeved on the outside of the shaft body, a bottom plate opening being equidistantly formed on the bottom plate, a bottom plate first nut, and the first nut being threadedly connected with the end part of the U-shaped bolt.

[0015] Preferably, the top end of the octagon plate is provided with an airbag platform, the top end of the airbag platform is equidistantly provided with a mounting hole for mounting an airbag, the airbag platform is angularly set between 10-30°, the inner cavity of the mounting hole is slidably connected with a fixing bolt, and the fixing bolt is threadedly connected with the airbag through the mounting hole.

[0016] Preferably, the correction mounting mechanism further comprises:

[0017] A positioning pipe is fixedly connected to the top end of the bottom plate, equidistantly embedded guide pipes are arranged on the shaft body, the inner cavities of the positioning pipe and the guide pipes are slidably connected, and a damping pad is arranged in the positioning pipe.

[0018] A positioning rod is connected to the connecting mechanism at one end.

[0019] A shock absorber sleeve is slidably connected with the inner cavities of the positioning pipe and the shock absorber sleeve, and the other end of the positioning rod is slidably connected with the inner cavity of the shock absorber sleeve.

[0020] Preferably, the top end of the octagon plate is provided with a large circle and a small circle, the octagon plate is welded to the positioning pipe through the large circle and the small circle, and equidistantly arranged T-shaped grooves for welding with the shaft body are arranged on the shaft body.

[0021] Preferably, the damping mechanism comprises:

[0022] A shock absorber support;

[0023] A U-shaped piece is fixedly connected to the bottom end of the shock absorber support and the opposite side of the octagon plate, respectively.

[0024] A shock absorber body is arranged in the inner part of the U-shaped piece.

[0025] A rotating pin is connected between the shock absorber body and the U-shaped piece, and the cross section of the rotating pin is in the shape of T.

[0026] Preferably, the damping mechanism further comprises:

[0027] A washer is slidably connected with the inner cavity of the rotating pin.

[0028] A second nut is provided with external threads at the end of the rotating pin, and the second nut is threadedly connected with the rotating pin to limit the displacement of the rotating pin.

[0029] Preferably, the connecting mechanism comprises:

[0030] An integrated top plate is provided with a through hole at the top end for connecting the positioning rod.

[0031] The vertical plate is symmetrically fixed to the top end of the integrated top plate.

[0032] Preferably, the connecting mechanism further comprises:

[0033] The positioning bolt is fixed to the top end of the air bag, and the top end of the integrated top plate is provided with a positioning hole at equal intervals.

[0034] The third nut is threadedly connected with the end of the positioning bolt.

[0035] Preferably, the cross section of the integrated top plate is in the shape of an eight character, and the middle part of the integrated top plate is provided with a through groove connected with the frame at equal intervals.

[0036] The technical effects and advantages of the present application are as follows:

[0037] The present application utilizes the eight character-shaped design of the integrated top plate, and the air bag connecting part is provided with an angle of 10-30°, which is in response to the angle of 10-30° of the air bag platform, so as to form the active correction balance state of the shaft body before and after. When the shaft body encounters road bumps or impacts, the angle of 10-30° can always be kept in the center position, avoiding the tire from being eaten due to the offset of the wheelbase. The shock absorber body is arranged in parallel with the shaft body, and the shock absorber body and the shock absorber support form an eight character shape, which can actively correct the left and right balance of the shaft body, so as to achieve the automatic balance of the front and rear and the left and right, and actively correct, so as to keep the shaft body in a straight and vertical running state, increase the adhesion between the tire and the ground, reduce the wear of the tire, ensure the stability of the guide arm during the operation of the vehicle, and keep a certain buffering capacity when the shock absorber body is damaged, so as to support the maintenance, and further improve the use effect. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall side structure of the present application.

[0039] Figure 2 It is an exploded view of the overall structure of the present application.

[0040] Figure 3 It is an exploded view of the structure of the correction installation mechanism of the present application.

[0041] Figure 4 It is a schematic diagram of the structure of the shaft body and the guide tube of the present application.

[0042] Figure 5 It is a schematic diagram of the overhead structure of the eight-shaped plate of the present application.

[0043] Figure 6 It is a schematic diagram of the structure of the connecting mechanism of the present application.

[0044] In the figure: 1. shaft; 2. correction installation mechanism; 21. bottom plate; 22. eight-shaped plate; 23. U-shaped bolt; 24. first nut; 25. airbag platform; 26. fixing bolt; 27. positioning tube; 28. positioning rod; 29. ​​large circle; 210. small circle; 211. guide tube; 212. shock-absorbing pad; 213. shock absorber sleeve; 3. airbag; 4. shock-absorbing mechanism; 41. shock absorber bracket; 42. U-shaped part; 43. shock absorber body; 44. rotating pin; 45. washer; 46. second nut; 5. connecting mechanism; 51. integrated top plate; 52. vertical plate; 53. positioning bolt; 54. third nut. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] The present invention provides Figures 1-6 The fully floating four-airbag active correction air suspension shown in the figure includes an axle body 1, a correction installation mechanism 2, an airbag 3, a shock absorbing mechanism 4 and a connecting mechanism 5. The axle body 1 serves as the core structure of the fully floating four-airbag active correction air suspension, bearing the weight of the entire suspension system and providing stable support, ensuring the flexibility and stability of the suspension system under different road conditions, thereby improving the handling performance and comfort of the entire vehicle. The correction installation mechanism 2 is set on the axle body 1. The design of the correction installation mechanism 2 enables the airbag 3 to be flexibly adjusted on the axle body 1, ensuring that the suspension system can be adjusted under bumpy or During an impact, the vehicle body can actively correct itself to maintain its balance. This mechanism effectively reduces tilt and sway, improving ride comfort. Airbags 3 are mounted on axle 1 via a correction mounting mechanism 2. Airbags 3 are key components of the suspension system and automatically adjust their air pressure based on road conditions, achieving active correction. Their cushioning and shock-absorbing properties effectively absorb road impacts, enhancing vehicle comfort and handling stability. The shock-absorbing mechanism 4 is positioned between the airbags 3. Its placement significantly reduces the impact of road bumps, further improving ride comfort. By working in conjunction with the airbags 3, it achieves more precise shock absorption, ensuring smooth vehicle operation under various road conditions. A connecting mechanism 5 is located at the top of each airbag 3, connecting adjacent airbags 3. The design of the connecting mechanism 5 ensures effective connection between adjacent airbags 3, enhancing the overall stability of the suspension system and working in conjunction with the correction mounting mechanism 2 to actively adjust the balance state, preventing tire wear and safety hazards caused by wheelbase deviation. Furthermore, the angle setting ensures optimized suspension performance under different conditions.

[0047] Specifically, the modified mounting mechanism 2 comprises a bottom plate 21, an octagon plate 22, a U-shaped bolt 23, a first nut 24, an air bag platform 25, a fixing bolt 26, a positioning tube 27, a positioning rod 28 and a shock absorber sleeve 213, the bottom plate 21 is symmetrically arranged at the bottom end of the shaft body 1, and a hollow groove for welding with the shaft body 1 is formed in the middle part of the bottom plate 21; the octagon plate 22 is arranged at the top end of the shaft body 1; the U-shaped bolt 23 is sleeved outside the shaft body 1, and bottom plate ports are equally arranged on the bottom plate 21, the end of the U-shaped bolt 23 is slidably connected with the inner cavity of the bottom plate port; the first nut 24 is threadedly connected with the end of the U-shaped bolt 23, which ensures the fastening and stability of the connection, makes the whole installation process more simple and efficient, and is convenient for later maintenance and adjustment, improves the maintainability and service life of the system. The top end of the octagon plate 22 is provided with the air bag platform 25, the top end of the air bag platform 25 is equally provided with mounting holes for mounting the air bag 3, the angle of the air bag platform 25 is set to be between 10-30°, the inclination design between 10-30° converts the vertical impact into slight lateral displacement, the air bag 3 is linked to offset the axle offset, the inner cavity of the mounting hole is slidably connected with the fixing bolt 26, the fixing bolt 26 is threadedly connected with the air bag 3 through the mounting hole, the positioning tube 27 is fixedly connected to the top end of the bottom plate 21, the shaft body 1 is equally embedded with a guide tube 211, the inner cavity of the positioning tube 27 is slidably connected with the inner cavity of the guide tube 211, the inside of the positioning tube 27 is provided with a shock pad 212, the setting of the shock pad 212 facilitates the positioning tube 27 and the positioning rod 28 to prevent the positioning rod 28 from directly penetrating through the positioning tube 27 when in use; one end of the positioning rod 28 is connected with the connecting mechanism 5; the inner cavity of the positioning tube 27 is slidably connected with the shock absorber sleeve 213, the other end of the positioning rod 28 is slidably connected with the inner cavity of the shock absorber sleeve 213, the positioning tube 27, the positioning rod 28 and the shock absorber sleeve 213 can form vertical shock absorption, when the shock absorbing mechanism 4 fails, it can still maintain a certain shock absorbing capacity, so as not to cause serious damage to the vehicle frame.

[0048] Further, the top end of the octagon plate 22 is provided with a large circle 29 and a small circle 210, the octagon plate 22 is welded and connected with the positioning tube 27 through the large circle 29 and the small circle 210, the design of the large circle 29 and the small circle 210 provides stable connection with the shaft body 1, enhances the stability of the whole structure, and through the welded connection, the pressure from the air bag 3 and the shock absorbing mechanism 4 can be effectively borne, ensuring the reliability of the suspension system under different working conditions, the shaft body 1 is equally provided with a T-shaped groove for welding with the shaft body 1, the design of the T-shaped groove facilitates the welding connection with the shaft body 1, provides stronger connection surface and structural stability, at the same time can reduce the welding stress concentration, improves the durability and safety of the whole suspension system, ensures that it can bear larger load and impact during driving.

[0049] Specifically, the damping mechanism 4 includes a damper support 41, a U-shaped piece 42, a damper body 43, a rotating pin 44, a washer 45, and a second nut 46. As a basic support structure of the damper body 43, the damper support 41 provides strong stability and carrying capacity, can effectively withstand the impact force from the road, and ensures the normal work of the damper body 43. The U-shaped piece 42 is fixedly connected to the bottom end of the damper support 41 and the opposite side of the octagonal plate 22, respectively. A plurality of holes through which the rotating pins 44 pass are formed in the U-shaped piece 42, so that the damper body 43 is rotatably arranged inside the U-shaped piece 42 through the rotating pins 44. The end of the damper body 43 is arranged inside the U-shaped piece 42, and the damper body 43 is arranged in parallel with the shaft body 1. The damper body 43 and the damper support 41 form an eight-character shape, which can actively correct the left-right balance of the shaft body 1, achieve automatic balance in all directions, and actively correct the shaft body 1 to be in a straight and vertical running state at all times, increase the adhesion of the tire to the ground, reduce the wear of the tire, ensure the stability of the guide arm during vehicle operation, and connect the damper body 43 and the U-shaped piece 42 through the rotating pins 44. The cross section of the rotating pin 44 is T-shaped, and the T-shaped cross section of the rotating pin 44 provides strong connection strength, ensuring the stable connection between the damper body 43 and the U-shaped piece 42. The structure enables the damper to flexibly adjust the position to adapt to dynamic changes in different road conditions, ensuring good damping effect. The rotating pin 44 and the washer 45 are connected in sliding insertion, and the use of the washer 45 between the rotating pin 44 and the damper body 43 can reduce friction and improve the sealing of the connection part, prevent dust and moisture from entering, and prolong the service life of the damper. At the same time, the presence of the washer 45 can further improve the damping effect and improve the overall comfort. The end of the rotating pin 44 is provided with external threads, and the second nut 46 is threadedly connected with the rotating pin 44 for limiting the displacement of the rotating pin 44 and preventing the connection from loosening during high load or intense exercise, ensuring that the damper can maintain good working condition under various driving conditions.

[0050] Specifically, the connecting mechanism 5 comprises an integral top plate 51, a vertical plate 52, a positioning bolt 53 and a third nut 54. The cross section of the integral top plate 51 is in the shape of a split, the top end of the integral top plate 51 is provided with a through hole for connecting the positioning rod 28, the middle part of the integral top plate 51 is provided with through grooves for connecting the frame at equal intervals, the split-shaped cross section of the integral top plate 51 provides good strength and stability, can effectively disperse the pressure from the air bag 3, the through grooves in the middle part are used for connecting the frame, ensuring the integrity and firmness of the suspension system, which helps to improve the structural stability and safety of the vehicle, the vertical plate 52 is fixedly connected to the top end of the integral top plate 51 in a symmetrical manner, the symmetrical fixed design of the vertical plate 52 enhances the supporting capacity of the integral top plate 51, ensures that various forces from the air bag 3 and the road surface are borne during driving, helps to improve the overall rigidity of the connecting mechanism 5, resists external impact, ensures the effective work of the air bag 3, the positioning bolt 53 is fixedly connected to the top end of the air bag 3 at equal intervals, the top end of the integral top plate 51 is provided with positioning holes at equal intervals, the end of the positioning bolt 53 is slidably connected with the inner cavity of the positioning hole, the equal interval fixed design of the positioning bolt 53 ensures the firm connection of the air bag 3 and the integral top plate 51, provides stable support, the third nut 54 is threadedly connected with the end of the positioning bolt 53, the threaded connection of the third nut 54 and the positioning bolt 53 ensures the fastening of the connection, prevents loosening during use, is convenient for later adjustment and maintenance, and improves the operability and reliability of the system.

[0051] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. A fully floating four-airbag active correction air suspension, characterized in that: include: Axle (1); A correction installation mechanism (2), wherein the correction installation mechanism (2) is arranged on the shaft body (1); An airbag (3), wherein the airbag (3) is arranged on the shaft body (1) through a modified mounting mechanism (2); A shock absorbing mechanism (4), the shock absorbing mechanism (4) being arranged between the air bags (3); A connecting mechanism (5) is provided at the top end of the airbag (3) and is used to connect adjacent airbags (3).

2. The fully floating four-airbag active correction air suspension according to claim 1 is characterized in that: The correction installation mechanism (2) comprises: A bottom plate (21), the bottom plate (21) is symmetrically arranged at the bottom end of the shaft body (1), and a hollow groove for welding to the shaft body (1) is opened in the middle of the bottom plate (21); An octagonal plate (22), the octagonal plate (22) being arranged at the top end of the shaft body (1); U-shaped bolts (23), the U-shaped bolts (23) are sleeved on the outside of the shaft body (1), the bottom plate (21) is provided with bottom plate openings at equal intervals, the bottom plate (21) is provided with bottom plate openings at equal intervals, and the ends of the U-shaped bolts (23) are slidably inserted and connected with the inner cavity of the bottom plate openings; A first nut (24) is threadably connected to an end portion of the U-shaped bolt (23).

3. The fully floating four-airbag active correction air suspension according to claim 2 is characterized in that: An airbag platform (25) is provided at the top of the octagonal plate (22), and mounting holes for mounting the airbag (3) are equidistantly provided at the top of the airbag platform (25). The angle of the airbag platform (25) is set between 10 and 30 degrees. A fixing bolt (26) is slidably inserted into the inner cavity of the mounting hole, and the fixing bolt (26) passes through the mounting hole and is threadedly inserted into the airbag (3).

4. The fully floating four-airbag active correction air suspension according to claim 2 is characterized in that: The correction installation mechanism (2) further comprises: A positioning tube (27), the positioning tube (27) is fixedly connected to the top of the bottom plate (21), a guide tube (211) is equidistantly embedded on the shaft body (1), the positioning tube (27) is slidably connected to the inner cavity of the guide tube (211), and a shock-absorbing pad (212) is provided inside the positioning tube (27); a positioning rod (28), one end of which is connected to the connecting mechanism (5); The shock absorber sleeve (213) is connected to the inner cavity of the shock absorber sleeve (213) by sliding and inserting the positioning tube (27), and the other end of the positioning rod (28) is connected to the inner cavity of the shock absorber sleeve (213) by sliding and inserting the positioning tube (27).

5. The fully floating four-airbag active correction air suspension according to claim 2 is characterized in that: The top of each of the eight-shaped plates (22) is provided with a large circle (29) and a small circle (210); the eight-shaped plates (22) are welded to the positioning tube (27) via the large circle (29) and the small circle (210); and T-shaped grooves for welding to the shaft body (1) are equidistantly provided on the shaft body (1).

6. The fully floating four-airbag active correction air suspension according to claim 2, characterized in that: The shock absorbing mechanism (4) comprises: shock absorber bracket (41); A U-shaped member (42), wherein the U-shaped member (42) is fixedly connected to the bottom end of the shock absorber bracket (41) and the opposite side of the eight-shaped plate (22); a shock absorber body (43), wherein an end portion of the shock absorber body (43) is disposed inside the U-shaped member (42); A rotating pin (44), wherein the shock absorber body (43) and the U-shaped member (42) are connected to each other via the rotating pin (44), and the cross section of the rotating pin (44) is T-shaped.

7. The fully floating four-airbag active correction air suspension according to claim 6, characterized in that: The shock absorbing mechanism (4) further comprises: The washer (45), the rotating pin (44) is slidably connected with the inner cavity of the washer (45); The second nut (46) is provided with an external thread at the end of the rotating pin (44). The second nut (46) is threadedly connected to the rotating pin (44) to limit the displacement of the rotating pin (44).

8. The fully floating four-airbag active correction air suspension according to claim 1, characterized in that: The connecting mechanism (5) comprises: An integrated top plate (51), wherein a through hole for connecting a positioning rod (28) is provided at the top end of the integrated top plate (51); A vertical plate (52) is symmetrically fixedly connected to the top end of the integral top plate (51).

9. The fully floating four-airbag active correction air suspension according to claim 8, characterized in that: The connecting mechanism (5) further comprises: Positioning bolts (53), the positioning bolts (53) are fixedly connected to the top of the airbag (3) at equal intervals, the top of the integrated top plate (51) is provided with positioning holes at equal intervals, and the ends of the positioning bolts (53) are slidably inserted into the inner cavity of the positioning holes; A third nut (54) is threadably connected to the end of the positioning bolt (53).

10. The fully floating four-airbag active correction air suspension according to claim 8, characterized in that: The cross section of the integrated top plate (51) is in an eight-shaped shape, and through slots connected to the vehicle frame are equidistantly formed in the middle of the integrated top plate (51).

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