Anti-biasing air suspension

Abstract

The utility model discloses an anti-offset type air suspension, including two guide arms, with the guide arm compatible guide arm support, axle, air spring and air bag connecting crossbeam, wherein the one end of each guide arm is rotatively connected with the corresponding guide arm support, and the other end fixed mounting air spring, the top of guide arm support is fixed mounting to the bottom of frame, the both ends of air bag connecting crossbeam all are equipped with the screw hole for connecting air spring, and the both ends of air bag connecting crossbeam are connected respectively fixed to the bottom of two air springs installed on two guide arms, and are carried to guide arm, with the length direction of guide arm is opposite perpendicular. The utility model discloses simple structure, reasonable in design can effectively reduce the manufacturing cost, and effectively avoid air spring and tire contact, make air spring stress more even, stability promotion, improved the service life of air spring.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive air suspension systems, specifically to an anti-offset air suspension. Background Technology

[0002] Air suspension refers to a connection device between the vehicle body, frame, and wheels. In existing automotive air suspension systems, to avoid contact between the air spring and the tire, and given the limited installation space, an eccentric connection is often used between the air spring and the guide arm, i.e., ... Figure 1 As shown, the part of the guide arm 1 that contacts the air spring 4 is deviated from the center of the air spring 4, and the offset is quite large. As a result, the air spring 4 is prone to tilting due to uneven force, which reduces the service life of the air spring 4, or even causes it to fail or be damaged. In addition, the installation position of the guide arm is relatively fixed. In the existing technology, there are also ways to change the shape of the guide arm to meet the customer's requirements for center alignment of the installation position. However, such irregular guide arm structures have low strength, low stability, and high manufacturing cost, which is not conducive to widespread use. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the existing technology and provide an anti-bias air suspension.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an anti-offset air suspension, including two guide arms, guide arm brackets adapted to the guide arms, an axle, air springs, and an airbag connecting beam, wherein one end of each guide arm is rotatably connected to the corresponding guide arm bracket, and the other end is fixedly installed with an air spring; the top end of the guide arm bracket is fixedly installed to the bottom of the vehicle frame; both ends of the airbag connecting beam are provided with screw holes for connecting air springs, and both ends of the airbag connecting beam are respectively connected and fixed to the bottom of two air springs installed on the two guide arms, and mounted on the guide arms, perpendicular to the length direction of the guide arms.

[0005] Furthermore, each guide arm includes a mounting portion, a first connecting portion, a bearing portion, a second connecting portion, and a hinge portion arranged sequentially, all integrally formed. The mounting portion has mounting holes for mounting air springs, and all mounting holes are located on the central axis along the length of the mounting portion, corresponding to the screw holes at the end of the airbag connecting beam. The first connecting portion slopes upward from the mounting portion side to the bearing portion side. A bearing platform is fixedly mounted on the upper end surface of the bearing portion, and a groove is provided on the upper end surface of the bearing platform, allowing the axle to be placed in the groove at the upper end of the bearing platform. A transverse hinge hole is provided at the end of the hinge portion.

[0006] Furthermore, the two ends of the airbag connecting beam are mounted on the mounting portion of the guide arm, and the screw holes provided on it are coaxially aligned with the mounting holes on the guide arm; the air spring is placed above the end of the airbag connecting beam, and its bottom is fixed by bolts passing through the screw holes and mounting holes; the center of gravity of the air spring is located on the central axis of the airbag connecting beam.

[0007] Furthermore, the airbag connecting beam is parallel to the aforementioned axle.

[0008] Furthermore, the airbag connecting beam is provided with multiple through holes at equal intervals.

[0009] Furthermore, the bottom of the airbag connecting beam is provided with multiple reinforcing ribs.

[0010] Furthermore, the guide arm bracket includes a connecting plate, side plates, and bushings, wherein the two sides of the connecting plate are respectively connected and fixed to the side plates, integrally formed, and the two side plates are parallel to each other; the two ends of the bushing pass through the two side plates respectively and are fixedly connected to them, and the aforementioned guide arm is rotatably connected to them.

[0011] Compared with the prior art, the present invention has the following advantages: the present invention has a simple structure and reasonable design, which can effectively reduce the manufacturing cost and effectively avoid the air spring from contacting the tire, so that the air spring is subjected to more uniform force, improves stability, and increases the service life of the air spring. Attached Figure Description

[0012] Figure 1 This is a schematic diagram showing the installation position of an air spring in the prior art;

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the assembly of the airbag connecting beam and the guide arm in this utility model;

[0015] Figure 4 This is a schematic diagram of the assembly of the guide arm and the guide arm bracket in this utility model;

[0016] Figure 5 for Figure 4 A front view of the structure;

[0017] Figure 6 This is a schematic diagram of the airbag connecting beam in this utility model;

[0018] In the diagram: 1. Guide arm, 2. Guide arm bracket, 3. Axle, 4. Air spring, 5. Airbag connecting beam, 6. Wheel, 11. Mounting part, 12. First connecting part, 13. Bearing part, 14. Second connecting part, 15. Hinge part, 16. Mounting hole, 17. Bearing platform, 21. Connecting plate, 22. Side plate, 51. Screw hole, 52. Through hole. Detailed Implementation

[0019] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. These terms are merely used to facilitate the description of the structural relationships of the components in this utility model and do not specifically indicate that any component or device in this utility model must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this utility model. Furthermore, terms such as "first" and "second," etc., are used for descriptive purposes only and do not specifically refer to order or sequence, nor are they intended to limit this utility model. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0022] like Figure 2 As shown, an anti-offset air suspension includes two guide arms 1, two guide arm supports 2 adapted to the guide arms 1, an axle 3, two air springs 4, and an airbag connecting beam 5. One end of each guide arm 1 is rotatably connected to the corresponding guide arm support 2, and the top end of the guide arm support 2 is fixedly mounted upwards to the bottom of the overall vehicle frame; the other end is fixedly mounted with an air spring 4, and the top end of the air spring 4 is also fixedly mounted upwards to the bottom of the overall vehicle frame. Combined with... Figure 4 and Figure 5As shown, the guide arm 1 includes a mounting portion 11, a first connecting portion 12, a bearing portion 13, a second connecting portion 14, and a hinge portion 15 arranged sequentially from front to back. These components are integrally formed by forging. The mounting portion 11 has two mounting holes 16 for mounting air springs 4, extending vertically through the mounting portion. Both mounting holes 16 are located on the central axis along the length of the mounting portion 11. The first connecting portion 12 is inclined upwards from the mounting portion and connected to the bearing portion 13, with rounded chamfers. An integrally formed bearing platform 17 is fixedly mounted on the upper surface of the bearing portion 13, primarily used to support and connect the axle 3. The upper surface of the bearing platform 17 has a groove with the same curvature as the axle 3 for a stable connection. The second connecting portion 14 is used to fixally connect the bearing portion 13 and the hinge portion 15. The hinge portion 15 has a transverse hinge hole and can be configured with a rolled ear structure for rotatable connection with the guide arm bracket 2. The guide arm bracket 2 includes a connecting plate 21, two side plates 22, and a bushing. The two vertical sides of the connecting plate 21 are respectively connected and fixed to the two side plates 22, forming an integral piece, and the two side plates 22 are parallel to each other. The bushing is placed between the two side plates 22, and its two ends pass through the side plates 22 on both sides and are detachably fixed to them. The hinge part 15 in the guide arm 1 is rotatably fitted onto the bushing, so that the guide arm 1 can rotate relative to the guide arm bracket 2.

[0023] Reference Figure 6 As shown, both ends of the airbag connecting beam 5 are provided with two screw holes 51 that are adapted to the mounting holes 16 on the guide arm 1, for connecting the air spring 4; combined with Figure 3 As shown, the two ends of the airbag connecting beam 5 are respectively mounted on the mounting portions 11 of the two guide arms 1, arranged laterally. The screw holes 51 and mounting holes 16 are aligned coaxially. The air spring 4 sits on the ends of the airbag connecting beam 5 and the mounting portions 11 of the guide arms 1. Its bottom is fixedly connected by bolts passing through the corresponding screw holes 51 and mounting holes 16. At this time, the center of gravity of the air spring 4 falls on the length center axis of the airbag connecting beam 5, which can support the air spring 4, making the force evenly distributed and avoiding offset installation. The airbag connecting beam 5 is relatively perpendicular to the length direction of the guide arms 1 and relatively parallel to the axle 3. In order to further improve the strength of the airbag connecting beam 5, multiple reinforcing ribs are welded and fixed to the bottom of the airbag connecting beam 5. The airbag connecting beam 5 is also provided with multiple through holes 52 that are evenly spaced to reduce resonance and improve its service life.

[0024] Of course, the above embodiments are only some embodiments of this utility model, not all embodiments, and are not intended to limit this utility model. This utility model is not limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this utility model should also fall within the protection scope of this utility model.

Claims

1. An anti-bias air suspension, characterized in that: It includes two guide arms, guide arm brackets adapted to the guide arms, an axle, air springs, and an airbag connecting beam. One end of each guide arm is rotatably connected to the corresponding guide arm bracket, and the other end is fixedly mounted with an air spring. The top end of the guide arm bracket is fixedly mounted to the bottom of the vehicle frame. Both ends of the airbag connecting beam are provided with screw holes for connecting air springs. The two ends of the airbag connecting beam are respectively connected and fixed to the bottom of two air springs mounted on the two guide arms, and mounted on the guide arms, perpendicular to the length direction of the guide arms.

2. The anti-bias air suspension according to claim 1, characterized in that: Each guide arm includes a mounting portion, a first connecting portion, a bearing portion, a second connecting portion, and a hinge portion arranged sequentially, all integrally formed. The mounting portion has mounting holes for mounting air springs, and all mounting holes are located on the central axis along the length of the mounting portion, corresponding to the screw holes at the end of the airbag connecting beam. The first connecting portion slopes upward from the mounting portion side to the bearing portion side. A bearing platform is fixedly mounted on the upper end surface of the bearing portion, and the upper end surface of the bearing platform has a groove, allowing the axle to be placed in the groove at the upper end of the bearing platform. The end of the hinge portion has a transverse hinge hole.

3. The anti-bias air suspension according to claim 2, characterized in that: The two ends of the airbag connecting beam are mounted on the mounting part of the guide arm, and the screw holes provided on it are coaxially aligned with the mounting holes on the guide arm; the air spring is placed above the end of the airbag connecting beam, and its bottom is fixed by bolts passing through the screw holes and mounting holes; the center of gravity of the air spring is located on the central axis of the airbag connecting beam.

4. The anti-bias air suspension according to claim 3, characterized in that: The airbag connecting beam is parallel to the aforementioned axle.

5. The anti-bias air suspension according to claim 1, characterized in that: The airbag connecting beam has multiple through holes at equal intervals.

6. The anti-bias air suspension according to claim 1, characterized in that: The bottom of the airbag connecting beam is provided with multiple reinforcing ribs.

7. The anti-bias air suspension according to claim 1, characterized in that: The guide arm bracket includes a connecting plate, side plates, and bushings. The two sides of the connecting plate are respectively connected and fixed to the side plates, and are integrally formed. The two side plates are parallel to each other. The two ends of the bushing pass through the two side plates respectively and are fixedly connected to them. The guide arm is rotatably connected to it.

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