CN221476628U - Guide arm and air suspension - Google Patents

Abstract

The embodiment of the utility model provides a guide arm and an air suspension, the air suspension is located between the frame and the axle of the vehicle, the air suspension includes an airbag, the guide arm includes a connecting rod and a mounting seat, the connecting rod extends along a first direction, one end of the connecting rod is connected to the frame, and the other end is connected to the axle, the mounting seat is connected to the end of the connecting rod away from the frame, the mounting seat includes an airbag mounting portion extending along a second direction, the airbag is mounted on the airbag mounting portion, and the second direction forms an angle with the first direction. In this way, by setting a connecting rod extending along the first direction to connect the frame and the axle respectively, the guide arm can transmit the traction between the axle and the frame, and improve the driving comfort of the vehicle, by setting an airbag mounting portion extending along the second direction on the mounting seat, the airbag is mounted on the airbag mounting portion, and the interference between the wheel and the airbag is avoided, and the airbag mounting plate is also eliminated, thereby reducing the weight of the air suspension and reducing the cost of the air suspension.

Description

Guide arm and air suspension

Technical Field

The utility model relates to the technical field of automobile equipment, in particular to a guide arm and an air suspension.

Background technique

With the development of the automobile industry and the increasing demand for comfort, air suspension structures have been widely used in passenger cars and commercial vehicles. With the development of new energy vehicles, the power system adopts an integrated electric drive axle structure to replace the traditional engine, gearbox, and drive shaft structure. With the increase of unsprung mass, the chassis vibration acceleration increases, resulting in the problem of poor vehicle smoothness. The commonly used air suspension structure is usually arranged with an airbag mounting plate connected to the rear cantilever end of the guide arm to install the airbag to avoid the risk of interference between the airbag and the wheel. However, the provision of an airbag mounting plate will make the air suspension structure complicated and the overall cost and weight high.

Utility Model Content

The utility model provides a guide arm and an air suspension.

The guide arm of the embodiment of the utility model is used for an air suspension, the air suspension is located between a frame and an axle of a vehicle, the air suspension includes an airbag, and the guide arm includes:

A connecting rod extending in a first direction, one end of the connecting rod being connected to the vehicle frame, and the other end of the connecting rod being connected to the vehicle axle;

A mounting seat is connected to an end of the connecting rod away from the frame, the mounting seat includes an airbag mounting portion extending along a second direction, the airbag is mounted on the airbag mounting portion, and the second direction forms an angle with the first direction.

In some embodiments, the number of the guide arms is two, the distance between the two airbag mounting portions is a first distance, the distance between the two connecting rods is a second distance, and the first distance is smaller than the second distance.

In some embodiments, a first through hole is formed on the airbag mounting portion, and the airbag is mounted on the airbag mounting portion through the first through hole.

In some embodiments, the guide arm includes a first sub-plate, one end of the first sub-plate is provided with a curling ear, the other end is the mounting seat, and the thickness of the first sub-plate gradually increases in a direction away from the curling ear.

In some embodiments, the guide arm further includes a second sub-plate, a hooking portion is provided at one end of the second sub-plate, the first sub-plate is attached to the upper surface of the second sub-plate, and the rolled ear is provided in the hooking portion.

In some embodiments, the first sub-board and the second sub-board are provided with a second through hole, and the first sub-board is fixedly connected to the second sub-board through the second through hole.

The air suspension of the utility model embodiment is used for a vehicle, the vehicle includes a frame and an axle, the air suspension is located between the frame and the axle of the vehicle, the air suspension includes a guide arm bracket, an airbag, a U-bolt and the guide arm described in any one of the above items, the guide arm includes a connecting rod and a mounting seat, the guide arm bracket is respectively connected to the frame and one end of the connecting rod, the U-bolt fixes the other end of the connecting rod to the axle, and the airbag is installed on the mounting seat.

In certain embodiments, the air suspension further comprises a guide arm cover plate, wherein the guide arm cover plate is mounted on the connecting rod, and the U-bolt is mounted on the guide arm cover plate, and fixes the guide arm cover plate and the guide arm to the axle from top to bottom.

In some embodiments, the air suspension further includes a lateral thrust rod support, a lateral thrust rod and an axle thrust rod support, wherein the lateral thrust rod support is mounted on the guide arm, the axle thrust rod support is mounted on the axle, one end of the lateral thrust rod is connected to the lateral thrust rod support, and the other end is connected to the axle thrust rod support.

In certain embodiments, the air suspension further includes a shock absorber and a shock absorber bracket, wherein the shock absorber is mounted on one side of the airbag, and the shock absorber bracket is fixed on the vehicle frame and connected to the shock absorber.

In the guide arm and air suspension of the present application, a connecting rod extending along a first direction is provided to respectively connect the frame and the axle, so that the guide arm can transmit the traction between the axle and the frame, thereby improving the driving comfort of the vehicle. An airbag mounting portion extending along a second direction is provided on the mounting seat, and an angle is formed between the first direction and the second direction. The airbag is installed on the airbag mounting portion, thereby avoiding interference between the wheel and the airbag, eliminating the airbag mounting plate, reducing the weight of the air suspension, and reducing the cost of the air suspension.

Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG1 is a schematic diagram of the connection of a guide arm according to an embodiment of the present utility model;

FIG2 is a schematic structural diagram of a guide arm according to an embodiment of the present utility model;

FIG3 is a schematic structural diagram of an air suspension according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the coordination between the air suspension and the vehicle axle according to an embodiment of the utility model.

Description of main component symbols:

Air suspension 100, guide arm 10, connecting rod 11, mounting seat 12, airbag mounting portion 121, first through hole 1211, first sub-plate 13, rolled ear 131, second through hole 132, second sub-plate 14, hooking portion 141, airbag 20, guide arm bracket 30, U-bolt 40, guide arm cover plate 50, lateral thrust rod support 60, lateral thrust rod 70, axle thrust rod support 80, shock absorber 90, shock absorber bracket 91, axle 200.

Detailed ways

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and/or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and/or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and/or the use of other materials.

Please refer to FIGS. 1-4 , an embodiment of the utility model provides an air suspension 100 , and the air suspension 100 includes a guide arm 10 and an airbag 20 .

Specifically, the vehicle includes an air suspension 100, a frame (not shown) and an axle 200. The air suspension 100 is installed between the frame and the axle 200. The air suspension 100 can adjust the ground clearance of the frame, adjust the stability of the vehicle body, and improve driving comfort. The guide arm 10 includes a connecting rod 11 and a mounting seat 12. The connecting rod 11 is arranged along a first direction, which is the forward direction of the vehicle. One end of the connecting rod 11 is connected to the frame, and the other end is connected to the axle 200. The connecting rod 11 can transmit the traction generated by the acceleration and braking of the vehicle between the frame and the axle 200.

The mounting seat 12 is connected to the end of the connecting rod 11 away from the vehicle frame, that is, the mounting seat 12 is connected to the end of the connecting rod 11 close to the axle 200. The mounting seat 12 includes an airbag mounting portion 121. The airbag mounting portion 121 is used to install the airbag 20. The airbag 20 can be made of a soft rubber material with good elasticity and durability. The airbag 20 can adjust the height and hardness of the air suspension according to the load and road conditions of the vehicle. When the vehicle load is heavy, the airbag 20 will be inflated to increase the supporting force, and when the load is light, the airbag 20 will release part of the gas to reduce the hardness, thereby providing better driving comfort and stability.

Furthermore, one end of the connecting rod 11 close to the axle 200 is bent to form a mounting seat 12. Please refer to Figure 1. After the connecting rod 11 is bent, it extends along the second direction to form the mounting seat 12, wherein the portion extending along the second direction is the airbag mounting portion 121, and the second direction forms an angle with the first direction. For example, taking the front wheel of the vehicle as an example, the number of guide arms 10 can be two, the distance between the two airbag mounting portions 121 is the first distance, and the distance between the two connecting rods 11 is the second distance. The two connecting rods 11 are arranged in parallel, and the first distance is smaller than the second distance, so as to avoid interference between the airbag 20 installed on the airbag mounting portion 121 and the wheel, thereby improving driving safety.

In some embodiments, the airbag mounting portion 121 is provided with a first through hole 1211, and the airbag 20 can be mounted on the airbag mounting portion 121 through the first through hole 1211. For example, the airbag 20 can be bolted to the airbag mounting portion 121 through the first through hole 1211. It can be understood that bolting is more convenient for replacing and repairing the airbag 20 than welding.

The guide arm 10 of the present application is respectively connected to the frame and the axle 200 by setting a connecting rod 11 extending along the first direction, so that the guide arm 10 can transmit the traction between the axle 200 and the frame, thereby improving the driving comfort of the vehicle. By setting an airbag mounting portion 121 extending along the second direction on the mounting seat 12, the first direction and the second direction form an angle, and the airbag 20 is installed on the airbag mounting portion 121, thereby avoiding interference between the wheel and the airbag 20, and eliminating the mounting plate of the airbag 20, thereby reducing the weight of the air suspension 100 and reducing the cost of the air suspension 100.

Please refer to FIG. 1 and FIG. 2 . In some embodiments, the air suspension 100 further includes a guide arm bracket 30 , a guide arm cover plate 50 and a U-bolt 40 . The guide arm 10 includes a first sub-plate 13 and a second sub-plate 14 .

Specifically, a rolled ear 131 is provided at one end of the first sub-board 13, and the other end is a mounting seat 12. The thickness of the first sub-board 13 gradually increases from the rolled ear 131 to the mounting seat 12. A hooking portion 141 is provided at one end of the second sub-board 14. When the first sub-board 13 and the second sub-board 14 are assembled, the rolled ear 131 is clamped in the hooking portion 141, so that the first sub-board 13 is attached to the upper surface of the second sub-board 14.

Furthermore, the guide arm bracket 30 is fixedly mounted on the vehicle frame, and the guide arm bracket 30 is also rotatably connected to the rolled ear 131. The first sub-plate 13 and the second sub-plate 14 are provided with a second through hole 132, and the first sub-plate 13 can be fixedly connected to the second sub-plate 14 through the second through hole 132. For example, the second through hole 132 can be a bolt hole, and the first sub-plate 13 and the second sub-plate 14 are bolted through the second through hole 132. The guide arm cover plate 50 is covered at the second through hole 132 of the first sub-plate 13, and the guide arm cover plate 50 can be bolted to the guide arm 10 through the second through hole 132. The U-bolt 40 is installed on the guide arm cover plate 50, and the U-bolt 40 fixes the guide arm cover plate 50 and the guide arm 10 to the axle 200 from top to bottom.

It can be understood that the connecting rod 11 can be composed of a second sub-plate 14 and a portion where the first sub-plate 13 and the second sub-plate 14 overlap, the rolled ear 131 is clamped in the hook portion 141 to connect to the frame, a second through hole 132 is opened to install the guide arm cover 50, and the U-bolt 40 is used to install it on the guide arm cover 50 to connect to the axle 200.

In this way, the thickness of the first sub-plate 13 gradually increases in the direction away from the coil ear 131, and the overall strength of the guide arm 10 can be improved under the premise of ensuring the elastic force of the guide arm 10. By setting the guide arm cover plate 50 to cover the connecting rod 11, and using the U-bolt 40 to fix the guide arm cover plate 50 and the guide arm 10 to the axle 200, the guide arm 10 can transmit the traction between the frame and the axle 200, and absorb and reduce the traction through the air suspension, thereby improving the driving comfort of the vehicle.

Referring to FIG. 3 and FIG. 4 , in some embodiments, the air suspension 100 further includes a lateral thrust rod support 60, a lateral thrust rod 70, and an axle thrust rod support 80. The lateral thrust rod support 60 is mounted on the guide arm 10 on one side, and the axle thrust rod support 80 is mounted on the axle 200. One end of the lateral thrust rod 70 is connected to the lateral thrust rod support 60, and the other end is connected to the axle thrust rod support 80. The lateral thrust rod 70 is arranged along the width direction of the vehicle. When the vehicle turns, the lateral thrust rod 70 can fix the position of the axle 200 to prevent the axle 200 from being displaced along the width direction of the vehicle, thereby improving the stability of the vehicle.

Please refer to Figure 3. In some embodiments, the air suspension 100 also includes a shock absorber 90 and a shock absorber bracket 91. The shock absorber 90 is installed on one side of the airbag 20. The shock absorber bracket 91 is fixed on the frame and connected to the shock absorber 90. For example, the number of shock absorbers 90 can be two. The two shock absorbers 90 are respectively arranged on one side of the two airbags 20. The two shock absorbers 90 are arranged close to each other to avoid the shock absorber 90 interfering with the wheels. One end of the shock absorber 90 is installed on the airbag 20, and the other end is fixedly connected to the frame through the shock absorber bracket 91. When the vehicle is bumped and generates impact force, the shock absorber 90 and the airbag 20 can jointly absorb and reduce the impact force to improve driving comfort and stability. When the shock absorber 90 is working, it can control the vibration and shaking degree of the frame through the damping force and compression stroke, so that the vehicle drives smoothly.

In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A guide arm for an air suspension, the air suspension being located between a frame and an axle of a vehicle, the air suspension including an air bag, the guide arm comprising:

A connecting rod extending along a first direction, one end of the connecting rod is connected with the frame, and the other end of the connecting rod is connected with the axle;

The mounting seat is connected with one end of the connecting rod, which is away from the frame, the mounting seat comprises an air bag mounting part extending along a second direction, the air bag is mounted on the air bag mounting part, and an included angle is formed between the second direction and the first direction.

2. The guide arm of claim 1, wherein the number of guide arms is two, a distance between two of the airbag mounting portions is a first distance, a distance between two of the connecting rods is a second distance, and the first distance is less than the second distance.

3. The guide arm according to claim 1, wherein the air bag mounting portion is provided with a first through hole, and the air bag is mounted on the air bag mounting portion through the first through hole.

4. The guide arm according to claim 1, wherein the guide arm comprises a first sub-board, one end of the first sub-board is provided with a rolling lug, the other end is the mounting seat, and the thickness of the first sub-board gradually increases towards a direction away from the rolling lug.

5. The guide arm of claim 4, further comprising a second sub-board, wherein one end of the second sub-board is provided with a hooking portion, the first sub-board is attached to an upper surface of the second sub-board, and the winding lug is disposed in the hooking portion.

6. The guide arm of claim 5, wherein the first sub-board and the second sub-board are provided with a second through hole, and the first sub-board is fixedly connected with the second sub-board through the second through hole.

7. An air suspension for a vehicle, the vehicle comprising a frame and an axle, the air suspension being located between the frame and the axle of the vehicle, the air suspension comprising a guide arm bracket, an air bag, a U-bolt and the guide arm of any one of claims 1 to 6, the guide arm comprising a connecting rod and a mounting seat, the guide arm bracket being connected to one end of the frame and one end of the connecting rod respectively, the U-bolt fixing the other end of the connecting rod to the axle, the air bag being mounted to the mounting seat.

8. The air suspension of claim 7 further comprising a pilot arm cover plate mounted to said connecting rod, said U-bolts mounted to said pilot arm cover plate and securing said pilot arm cover plate and said pilot arm to said axle from top to bottom.

9. The air suspension of claim 7 further comprising a transverse thrust rod bracket mounted on said pilot arm, a transverse thrust rod and an axle thrust rod bracket mounted on said axle, said transverse thrust rod having one end connected to said transverse thrust rod bracket and another end connected to said axle thrust rod bracket.

10. The air suspension of claim 7 further comprising a shock absorber mounted to said air bag side and a shock absorber bracket secured to said frame and connected to said shock absorber.