阅读说明：本技术 一种汽车及其空气悬架 (Automobile and air suspension thereof ) 是由 尹中保 冯哲 杨盛生 周文 谷润民 于 2021-02-24 设计创作，主要内容包括：本发明涉及汽车技术领域,尤其涉及一种汽车及其空气悬架。汽车空气悬架包括车架、车桥和对称布置于车架两侧的悬架连接组件,悬架连接组件包括第一支架、板簧、第二支架、气囊和减震器,第一支架与车架固定连接,板簧的第一端与第一支架铰接,第二端与车桥连接,使得生产的过程中不需要对板簧弯折后连接车桥、气囊和减震器,降低了生产时板簧的加工费用,避免在折弯处形成应力集中点,降低了板簧弯折造成断裂的可能性,从而增加了汽车的工作稳定性。另外,由于无需弯折板簧进行连接,降低了板簧的长度,从而减少了板簧材料的使用,降低生产成本的同时,降低了板簧的重量,从而降低了汽车整车的生产成本和整车重量。(The invention relates to the technical field of automobiles, in particular to an automobile and an air suspension thereof. Automobile air suspension includes the frame, axle and symmetrical arrangement are in the suspension coupling assembling of frame both sides, suspension coupling assembling includes first support, the leaf spring, the second support, gasbag and bumper shock absorber, first support and frame fixed connection, the first end of leaf spring is articulated with first support, the second end is connected with the axle, make the in-process of production need not buckle the back to the leaf spring and connect the axle, gasbag and bumper shock absorber, the working cost of leaf spring when having reduced production, avoid forming stress concentration point in the department of bending, the leaf spring is buckled and is caused cracked possibility to have been reduced, thereby the job stabilization nature of car has been increased. In addition, the plate spring does not need to be bent for connection, so that the length of the plate spring is reduced, the use of plate spring materials is reduced, the production cost is reduced, and meanwhile, the weight of the plate spring is reduced, so that the production cost of the whole automobile and the weight of the whole automobile are reduced.)

1. An automobile air suspension is characterized by comprising a frame, an axle and suspension connecting assemblies symmetrically arranged on two sides of the frame, wherein the axle is arranged below the frame, each suspension connecting assembly comprises a first support, a plate spring, a second support, an air bag and a shock absorber, the first support is fixedly connected with the frame, a first end of the plate spring is hinged with the first support, and a second end of the plate spring is connected with the axle;

the shock absorber is installed in the frame, the first end of second support with the shock absorber is articulated, the second end with the lower surface of axle is connected, gasbag fixed connection in the frame with between the second support.

2. The automotive air suspension of claim 1, wherein the second end of the leaf spring is attached to an upper surface of the axle or is disposed between the second bracket and the axle.

3. The automotive air suspension as claimed in claim 1, further comprising a first U-bolt and a second U-bolt, wherein the first U-bolt and the second U-bolt are respectively disposed on two sides of the axle and are mounted on the second bracket in the same direction, and the leaf spring is disposed through the first U-bolt and the second U-bolt and is fixedly connected to the axle.

4. The air suspension of claim 3, wherein the second bracket includes an axle bracket coupled to the axle and a shock absorber bracket coupled to the shock absorber, a first end of the axle bracket coupled to the first and second U-bolts and disposed below the axle, the shock absorber coupled to a second end of the axle bracket through the shock absorber bracket.

5. The automotive air suspension as claimed in claim 4, further comprising an air bag bracket, wherein one end of the air bag is connected to the air bag bracket, the other end of the air bag is connected to the frame, and two ends of the air bag bracket are respectively connected to the second bracket.

6. The automotive air suspension of claim 4, wherein the second bracket includes a notch disposed in the axle bracket, the notch engaging a lower surface of the axle.

7. The automotive air suspension of claim 6, wherein the longitudinal cross-sectional shape of the notch is rectangular, and the axle is embedded in and conforms to the notch.

8. The automotive air suspension of claim 5, wherein the axle bracket, the airbag bracket, and the second bracket are bolted together.

9. The automotive air suspension of claim 5, wherein the axle bracket, the airbag bracket, and the shock absorber bracket are integrally formed.

10. A vehicle comprising a vehicle air suspension according to any one of claims 1 to 9.

Technical Field

The invention relates to the field of automobiles, in particular to an automobile and an air suspension thereof.

Background

In the running process of the automobile, a traveling computer can judge the change of the height of the automobile body when the automobile body is vibrated, and then the air compressor and the exhaust valve are controlled through the automobile air suspension, so that the spring is automatically compressed or extended, the ground clearance of the chassis is reduced or increased, and the stability of the high-speed automobile body or the trafficability of complex road conditions is improved. At present commercial car uses the leaf spring of buckling through the multichannel as guide element's combined type car air suspension, but this leaf spring need adopt professional equipment to buckle processing in manufacturing process, and the expense is high, and weight is heavy, and the leaf spring of just buckling is bearing the weight in-process, and the department of buckling is stress concentration point, the easy scheduling problem that breaks appears.

Disclosure of Invention

Therefore, the invention provides the automobile air suspension which has the advantages that the guide element does not need to be bent, the production cost is reduced, and the working stability is improved.

The technical scheme of the invention is as follows: an automobile air suspension comprises a frame, an axle and suspension connecting assemblies symmetrically arranged on two sides of the frame, wherein the axle is arranged below the frame, each suspension connecting assembly comprises a first support, a plate spring, a second support, an air bag and a shock absorber, the first support is fixedly connected with the frame, a first end of the plate spring is hinged with the first support, and a second end of the plate spring is connected with the axle;

the shock absorber is installed in the frame, the first end of second support with the shock absorber is articulated, the second end with the lower surface of axle is connected, gasbag fixed connection in the frame with between the second support.

Optionally, the second end of the leaf spring is attached to an upper surface of the axle or is disposed between the second bracket and the axle.

Optionally, the vehicle axle further comprises a first U-shaped bolt and a second U-shaped bolt, the first U-shaped bolt and the second U-shaped bolt are respectively arranged on two sides of the vehicle axle and are installed on the second support in the same direction, and the plate spring penetrates through the first U-shaped bolt and the second U-shaped bolt and is fixedly connected with the vehicle axle.

Optionally, the second bracket includes an axle bracket connected to the axle and a damper bracket connected to the damper, the first end of the axle bracket is connected to the first U-bolt and the second U-bolt and is disposed below the axle, and the damper is connected to the second end of the axle bracket through the damper bracket.

Optionally, the vehicle frame further comprises an air bag support, one end of the air bag is connected to the air bag support, the other end of the air bag is connected to the vehicle frame, and two ends of the air bag support are respectively connected to the second support.

Optionally, the second bracket includes a clamping groove disposed on the axle bracket, and the clamping groove is attached to the lower surface of the axle.

Optionally, the longitudinal section of the clamping groove is rectangular, and the axle is embedded in the clamping groove and attached to the clamping groove.

Optionally, the axle bracket, the airbag bracket and the second bracket are connected by bolts.

Optionally, the axle bracket, the airbag bracket and the shock absorber bracket are integrally formed.

Based on the purpose, the invention further provides an automobile comprising the automobile air suspension.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

according to the automobile air suspension, the first end of the plate spring is hinged to the first support, the second end of the plate spring is connected with the axle, and the axle is connected with the shock absorber through the second support, so that the axle, the air bag and the shock absorber do not need to be connected after the plate spring is bent in the production process, the plate spring does not need to be bent, the processing cost of the plate spring in production is reduced, a stress concentration point is prevented from being formed at the bent position, and the possibility of fracture caused by bending of the plate spring is reduced; in addition, the plate spring does not need to be bent for connection, so that the length of the plate spring is reduced, the use of plate spring materials is reduced, the production cost is reduced, and meanwhile, the weight of the plate spring is reduced.

Drawings

Fig. 1 is a perspective view of an automotive air suspension according to an embodiment of the present invention.

Fig. 2 is a front view of an automotive air suspension according to an embodiment of the present invention.

Description of reference numerals:

100. automobile air suspension, 1, frame, 2, axle, 3, suspension coupling assembling, 31, first support, 32, leaf spring, 33, second support, 331, axle support, 332, bumper shock absorber support, 333, draw-in groove, 34, gasbag, 35, bumper shock absorber, 36, first U type bolt, 37, second U type bolt, 38, gasbag support.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, the present embodiment provides an automobile, which includes an automobile air suspension 100, the automobile air suspension includes a frame 1, an axle 2 and suspension connection assemblies 3 symmetrically disposed on two sides of the frame 1, the axle 2 is disposed below the frame 1, the suspension connection assemblies 3 include a first bracket 31, a leaf spring 32, a second bracket 33, an air bag 34 and a shock absorber 35, the first bracket 31 is fixedly connected to the frame 1, a first end of the leaf spring 32 is hinged to the first bracket 31, and a second end is connected to the axle 2. First end through with leaf spring 32 is articulated with first support 31, the second end is connected with axle 2, be connected through second support 33 between axle 2 and the bumper shock absorber 34, make the in-process of production need not buckle back connection axle 2 to leaf spring 32, gasbag 34 and bumper shock absorber 35, need not to bend the processing to leaf spring 32, leaf spring 32's processing cost when having reduced production, avoid forming stress concentration point at the department of bending, the leaf spring 32 has been reduced and has been buckled and cause cracked possibility, thereby the job stabilization nature of car has been increased. In addition, because the plate spring 32 does not need to be bent for connection, the length of the plate spring 32 is reduced, the use of the plate spring 32 material is reduced, the production cost is reduced, and meanwhile, the weight of the plate spring is reduced, so that the production cost of the whole automobile and the weight of the whole automobile are reduced.

As shown in fig. 1 and 2, in the present embodiment, the second end of the plate spring 32 is attached to the upper surface of the vehicle axle 2, reducing the length of the plate spring 32, the production cost, and the weight of the air suspension. In other embodiments, the leaf spring 32 may also be provided between the second bracket 33 and the axle 2, depending on the actual use.

Preferably, in this embodiment, the suspension connecting assembly 3 further includes a first U-bolt 36 and a second U-bolt 37, the first U-bolt 36 and the second U-bolt 37 are respectively disposed on two sides of the axle 2 and are mounted on the second bracket 33 in the same direction, and the plate spring 32 is disposed through the first U-bolt 36 and the second U-bolt 37 and fixedly connected to the axle 1. The U-shaped bolts make the plate spring 32 and the axle fixed more firmly, and kinetic energy output by the axle can be transmitted to the frame from the plate spring through the U-shaped bolts.

Preferably, in this embodiment, the second bracket 33 includes an axle bracket 331 connected to the axle 2 and a shock absorber bracket 332 connected to the shock absorber 35, a first end of the axle bracket 331 is connected to the first U-bolt 36 and the second U-bolt 37 and is disposed below the axle 2, and the shock absorber 35 is connected to a second end of the axle bracket 331 through the shock absorber bracket 332. The second bracket 33 is divided into a plurality of parts such as the axle bracket 331 and the shock absorption bracket 52, so that the processing difficulty in the production of the second bracket 33 is reduced.

Preferably, as shown in fig. 1, in the present embodiment, the suspension connecting assembly 3 further includes an airbag support 38, one end of the airbag 34 is connected to the airbag support 38, and the other end is connected to the frame 1, and two ends of the airbag support 38 are respectively connected to the second support 33, so as to increase a contact area between the airbag 34 and the second support 33, prevent the airbag 34 from falling off during movement, and also connect the suspension connecting assemblies 3 on two sides of the frame. In other embodiments, the airbag support 38 may not be provided to reduce the weight of the entire vehicle depending on the model of the vehicle and the actual manufacturing requirements.

Preferably, in this embodiment, the second bracket 33 includes a slot 333 disposed on the axle bracket 331, and the slot 333 is attached to the lower surface of the axle 2, so as to increase the contact area between the second bracket 33 and the axle 2, and make the contact between the second bracket 33 and the axle 2 more tight.

Preferably, in an embodiment, the longitudinal cross section of the slot 333 is rectangular, the axle 2 is embedded in the slot 333 and attached to the slot 333, and the rectangular slot 333 can prevent the axle 2 from sliding with the second bracket 33 during the movement of the entire vehicle.

As shown in fig. 1, in the embodiment, the axle bracket 331, the airbag bracket 38 and the second bracket 33 are connected by bolts, so that the parts of the second bracket 33 can be replaced conveniently according to actual use conditions, and the universality of the parts is increased. In other embodiments, the axle bracket 331, the airbag bracket 38, and the shock absorber bracket 71 may also be integrally formed, thereby reducing the use of fasteners and reducing the weight of the air suspension of the vehicle.

The automobile and the air suspension thereof have the following beneficial effects:

one, it is articulated with first support 31 through the first end with the leaf spring, the second end is connected with the axle, through second leg joint between axle and the bumper shock absorber, make the in-process of production need not buckle the back to the leaf spring and connect axle, gasbag and bumper shock absorber, need not to bend the processing to the leaf spring, the working costs of leaf spring when having reduced production, avoid forming stress concentration point in the department of bending, reduced leaf spring 32 and buckled and cause cracked possibility, thereby the job stabilization nature of car has been increased.

And the plate spring does not need to be bent for connection, so that the length of the plate spring is reduced, the use of plate spring materials is reduced, the production cost is reduced, and meanwhile, the weight of the plate spring is reduced, so that the production cost of the whole automobile and the weight of the whole automobile are reduced.

And thirdly, the plate spring is arranged on the upper surface of the axle, so that the length of the plate spring is reduced, and the production cost and the weight of the air suspension are reduced.

Fourthly, the axle and the plate spring are fastened through the first U-shaped bolt and the second U-shaped bolt, and kinetic energy output by the axle can be transmitted to the frame from the plate spring.

The foregoing is directed to the preferred embodiment of the present invention, and it is understood that various changes and modifications may be made by one skilled in the art without departing from the spirit of the invention, and it is intended that such changes and modifications be considered as within the scope of the invention.