CN217804215U

CN217804215U - Mounting structure of air spring rear suspension of heavy truck

Info

Publication number: CN217804215U
Application number: CN202221784994.7U
Authority: CN
Inventors: 史世俊; 左雄; 赵周; 李闯; 张敏; 宋学丰
Original assignee: SAIC Hongyan Automotive Co Ltd
Current assignee: SAIC Hongyan Automotive Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-15
Anticipated expiration: 2032-07-12

Abstract

The utility model provides a mounting structure of suspension behind heavy truck air spring, its characterized in that: comprises a frame, an axle, an air spring assembly and a composite transverse stabilizer bar; the two end parts of the axle are respectively connected with the two longitudinal beams of the frame through an air spring assembly; the composite transverse stabilizer bar comprises a cross bar, 2 swing arms and 2 supports, wherein the rear ends of the 2 swing arms are respectively hinged with the two ends of the cross bar, and the front ends of the 2 swing arms are respectively hinged with the lower ends of the 2 supports; the upper ends of the 2 supports are fixedly connected with the outer side faces of the 2 longitudinal beams of the frame respectively, the axial direction of the cross rod is perpendicular to the axial direction of the longitudinal beams of the frame, the cross rod is arranged on the front side of the axle, and rod sections near the two end portions of the cross rod are connected with the lower side faces of the two bracket beams respectively. By adopting the mounting structure, the anti-roll and anti-pitching capabilities of the heavy truck are greatly improved, and the control stability and the driving comfort are obviously improved.

Description

Mounting structure of air spring rear suspension of heavy truck

Technical Field

The utility model relates to an automobile manufacturing technical field, especially a mounting structure of suspension behind heavy truck air spring.

Background

With the rapid development of high-speed logistics in China and the dramatic increase of road transportation volume, users have higher and higher requirements on the comfort and the operation stability of the whole vehicle. The air suspension has the characteristics of small rigidity and good shock absorption, and can keep the height of the vehicle body unchanged and the load distribution uniform in the running process of the vehicle, thereby greatly improving the driving comfort of the vehicle, prolonging the service life of the whole vehicle and reducing the maintenance cost.

However, in the prior art, as shown in fig. 1, an air spring rear suspension system adopts a structure in which a transverse stabilizer bar 1-1 and a thrust rod assembly 1-2 are independently installed, the suspension provided by the structure has low roll angle rigidity, an overall vehicle roll angle is too large, and the operation stability is poor, and in addition, a rod system 1-3 adopts a symmetrical arrangement mode in which openings of double V-shaped thrust rods are opposite, so that the overall vehicle has low anti-pitching capability, poor comfort and high maintenance cost.

SUMMERY OF THE UTILITY MODEL

To the problem in the background art, the utility model provides a mounting structure of suspension behind heavy truck air spring to solve the problem that the suspension heeling angle is big, anti trim ability is low, manipulation stability is poor, the travelling comfort is not high, cost of maintenance is high behind the air spring of prior art.

The utility model aims at realizing through the technical scheme, which comprises the following steps:

the utility model provides a mounting structure of heavy truck air spring rear suspension which innovation point lies in: comprises a frame, an axle, an air spring assembly and a composite transverse stabilizer bar; the two end parts of the axle are respectively connected with the two longitudinal beams of the frame through an air spring assembly; the single air spring assembly comprises a trailing arm beam and 2 air springs, the upper side face of the middle part of the trailing arm beam is connected with the lower side face of the axle, the 2 air springs are respectively arranged at two ends of the trailing arm beam, the upper ends of the air springs are connected with a longitudinal beam of the frame, the lower ends of the air springs are connected with the trailing arm beam, and the axial direction of the trailing arm beam is vertical to the axial direction of the axle; the composite transverse stabilizer bar comprises a cross bar, 2 swing arms and 2 supports, wherein the rear ends of the 2 swing arms are respectively hinged with two ends of the cross bar, the front ends of the 2 swing arms are respectively hinged with the lower ends of the 2 supports, the 2 swing arms are symmetrically arranged at two ends of the cross bar, and the axial directions of the swing arms are vertical to the axial direction of the cross bar; the upper end of 2 supports respectively with the lateral surface fixed connection of 2 longerons of frame, the axial of support is along vertical setting, the axial of horizontal pole is perpendicular with the axial of solebar, the horizontal pole sets up the front side at the axle, near the pole section in both ends of horizontal pole is connected with the downside of two trailing arm roof beams respectively.

Furthermore, the mounting structure further comprises a first thrust rod assembly and a second thrust rod assembly, wherein 2 axles are provided, the 2 axles are respectively arranged at the middle part and the rear part of the frame, the first thrust rod assembly is arranged above the axle at the middle part of the frame, and the second thrust rod assembly is arranged above the axle at the rear part of the frame;

the first thrust rod assembly comprises 2 supports and 2 thrust rods, wherein the 2 supports are respectively connected with the inner side surfaces of 2 longitudinal beams of the frame, the rear ends of the 2 thrust rods are respectively hinged with the upper side surface of the middle part of the corresponding axle, and the front ends of the 2 thrust rods are respectively hinged with the 2 supports;

the second thrust rod assembly comprises a cross beam and a V-shaped thrust rod, the two ends of the cross beam are respectively connected with the inner side surfaces of 2 longitudinal beams of the frame, the V-shaped thrust rod is a V-shaped structure body, the V-shaped thrust rod comprises 2 free ends and 1 intersection end arranged at the middle part, the intersection end is hinged with the upper side surface of the middle part of the corresponding axle, and the 2 free ends are respectively hinged with the two ends of the cross beam.

Further, the cross rod is a tubular structure body, and the middle of the cross rod is bent towards the front lower part of the heavy truck.

Further, the swing arm is the platelike structure, the face of swing arm sets up along vertical.

Due to the adoption of the technical scheme, the utility model discloses following advantage has: because the composite transverse stabilizer bar structurally combines the transverse stabilizer bar and the thrust rod in the prior art, the composite transverse stabilizer bar not only maintains respective functions of the original structure, but also has more compact structure and improved rigidity of a bearing piece, under the condition of approximately same bearing capacity, the rigidity of a side inclination angle provided by the suspension structure is improved by 300 percent compared with the suspension structure of the prior structure, the side inclination angle of the whole vehicle is reduced by 20 percent, the operation stability and riding comfort are greatly improved, and as optimization, the thrust rod assemblies above the middle axle and the rear axle are both in V-shaped structures, and the openings face the direction of the vehicle head instead of the openings of the prior structure, so that the anti-pitching capacity of the vehicle is greatly improved, the operation stability of the vehicle is further improved, the service life of the vehicle is prolonged, and the maintenance cost is reduced.

Drawings

The drawings of the present invention are described below.

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic diagram of the structure of the present invention;

fig. 3 is a schematic bottom view of fig. 2.

In the figure: 1. a frame; 2. an axle; 3. an air spring assembly; 4. a composite stabilizer bar; 5. a first thrust rod assembly; 6. a second thrust rod assembly; 31. a trailing arm beam; 32. an air spring; 41. a cross bar; 42. swinging arms; 43. a support; 51. a support; 52. a thrust rod; 61. a cross beam; 62. a V-shaped thrust rod; 1-1, a transverse stabilizer bar; 1-2, a thrust rod assembly; 1-3, a rod system.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The mounting structure of the air spring rear suspension of the heavy truck shown in the attached drawings 2 and 3 comprises a frame 1, an axle 2, an air spring assembly 3 and a composite transverse stabilizer bar 4; the two end parts of the axle 2 are respectively connected with the two longitudinal beams of the frame 1 through an air spring assembly 3; the single air spring assembly 3 comprises a trailing arm beam 31 and 2 air springs 32, the upper side face of the middle part of the trailing arm beam 31 is connected with the lower side face of the axle 2, the 2 air springs 32 are respectively arranged at two ends of the trailing arm beam 31, the upper ends of the air springs 32 are connected with a longitudinal beam of the frame 1, the lower ends of the air springs 32 are connected with the trailing arm beam 31, and the axial direction of the trailing arm beam 31 is vertical to the axial direction of the axle 2; the composite transverse stabilizer bar 4 comprises a cross bar 41, 2 swing arms 42 and 2 supports 43, wherein the rear ends of the 2 swing arms 42 are respectively hinged with the two ends of the cross bar 41, the front ends of the 2 swing arms 42 are respectively hinged with the lower ends of the 2 supports 43, the 2 swing arms 42 are symmetrically arranged at the two ends of the cross bar 41, and the axial directions of the swing arms 42 are vertical to the axial direction of the cross bar 41; the upper ends of the 2 supports 43 are respectively fixedly connected with the outer side faces of the 2 longitudinal beams of the frame 1, the supports 43 are axially arranged vertically, the axial direction of the cross rod 41 is perpendicular to the axial direction of the longitudinal beams of the frame 1, the cross rod 41 is arranged on the front side of the axle 2, and the rod sections near the two end portions of the cross rod 41 are respectively connected with the lower side faces of the two trailing arm beams 31.

In order to improve the longitudinal inclination rigidity of the heavy truck, reduce the longitudinal inclination angle and improve the driving comfort and the controllability of the vehicle, the mounting structure further comprises a first thrust rod assembly 5 and a second thrust rod assembly 6, wherein 2 axles 2 are respectively arranged at the middle part and the rear part of the frame 1, the first thrust rod assembly 5 is arranged above the axle 2 at the middle part of the frame 1, and the second thrust rod assembly 6 is arranged above the axle 2 at the rear part of the frame 1; the first thrust rod assembly 5 comprises 2 support seats 51 and 2 thrust rods 52, wherein the 2 support seats 51 are respectively connected with the inner side surfaces of 2 longitudinal beams of the frame 1, the rear ends of the 2 thrust rods 52 are respectively hinged with the upper side surface of the middle part of the corresponding axle 2, and the front ends of the 2 thrust rods 52 are respectively hinged with the 2 support seats 51; second thrust rod assembly 6 includes crossbeam 61 and V-arrangement thrust rod 62, the both ends of crossbeam 61 are connected with the medial surface of 2 longerons of frame 1 respectively, V-arrangement thrust rod 62 is the V font structure, V-arrangement thrust rod 62 includes 2 free ends and 1 and sets up in the end of crossing at middle part, the end of crossing is articulated with the last side at 2 middle parts of corresponding axle, and 2 free ends are articulated with the both ends of crossbeam 61 respectively.

In order to further improve the anti-pitching capacity of the heavy truck, the cross rod 41 is a tubular structure, and the middle part of the cross rod 41 is bent towards the front lower part of the heavy truck;

in order to further improve the anti-roll capability of the heavy truck, the swing arm 42 is a plate-shaped structure, and the plate surface of the swing arm 42 is vertically arranged.

Claims

1. The utility model provides a mounting structure of suspension behind heavy truck air spring which characterized in that: comprises a frame (1), an axle (2), an air spring component (3) and a composite transverse stabilizer bar (4); the two end parts of the axle (2) are respectively connected with the two longitudinal beams of the frame (1) through an air spring assembly (3); the single air spring assembly (3) comprises a trailing arm beam (31) and 2 air springs (32), the upper side face of the middle of the trailing arm beam (31) is connected with the lower side face of the axle (2), the 2 air springs (32) are respectively arranged at two ends of the trailing arm beam (31), the upper ends of the air springs (32) are connected with a longitudinal beam of the frame (1), the lower ends of the air springs (32) are connected with the trailing arm beam (31), and the axial direction of the trailing arm beam (31) is perpendicular to the axial direction of the axle (2); the composite transverse stabilizer bar (4) comprises a cross bar (41), 2 swing arms (42) and 2 supports (43), the rear ends of the 2 swing arms (42) are hinged to the two ends of the cross bar (41) respectively, the front ends of the 2 swing arms (42) are hinged to the lower ends of the 2 supports (43) respectively, the 2 swing arms (42) are symmetrically arranged at the two ends of the cross bar (41), and the axial directions of the swing arms (42) are perpendicular to the axial direction of the cross bar (41); the upper end of 2 supports (43) respectively with the lateral surface fixed connection of 2 longerons of frame (1), the axial of support (43) is along vertical setting, the axial of horizontal pole (41) is perpendicular with the axial of the longeron of frame (1), horizontal pole (41) set up the front side at axle (2), near the pole section in both ends of horizontal pole (41) is connected with the downside of two trailing arm roof beams (31) respectively.

2. The mounting structure for air spring rear suspensions of heavy trucks according to claim 1, characterized in that: the mounting structure further comprises a first thrust rod assembly (5) and a second thrust rod assembly (6), wherein 2 axles (2) are arranged, the 2 axles (2) are respectively arranged in the middle and the rear of the frame (1), the first thrust rod assembly (5) is arranged above the axle (2) in the middle of the frame (1), and the second thrust rod assembly (6) is arranged above the axle (2) in the rear of the frame (1);

the first thrust rod assembly (5) comprises 2 supports (51) and 2 thrust rods (52), wherein the 2 supports (51) are respectively connected with the inner side surfaces of 2 longitudinal beams of the frame (1), the rear ends of the 2 thrust rods (52) are hinged with the upper side surface of the middle part of the corresponding axle (2), and the front ends of the 2 thrust rods (52) are respectively hinged with the 2 supports (51);

second thrust rod assembly (6) are including crossbeam (61) and V-arrangement thrust rod (62), the both ends of crossbeam (61) are connected with the medial surface of 2 longerons of frame (1) respectively, V-arrangement thrust rod (62) are the V font structure, V-arrangement thrust rod (62) include 2 free ends and 1 set up in the end that intersects at the middle part, the end that intersects is articulated with the side of going up that corresponds axle (2) middle part, and 2 free ends are articulated with the both ends of crossbeam (61) respectively.

3. The mounting structure for the air spring rear suspension of the heavy truck according to claim 1 or 2, characterized in that: the cross rod (41) is a tubular structure body, and the middle part of the cross rod (41) is bent towards the front lower part of the heavy truck.

4. The mounting structure for the air spring rear suspension of the heavy truck according to claim 1 or 2, characterized in that: the swing arm (42) is a plate-shaped structure, and the plate surface of the swing arm (42) is arranged vertically.

5. The mounting structure for the air spring rear suspension of a heavy truck according to claim 3, wherein: the swing arm (42) is a plate-shaped structure, and the plate surface of the swing arm (42) is arranged vertically.