CN212046763U - American air suspension system of lightweight for semitrailer - Google Patents
American air suspension system of lightweight for semitrailer Download PDFInfo
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- CN212046763U CN212046763U CN202020204227.9U CN202020204227U CN212046763U CN 212046763 U CN212046763 U CN 212046763U CN 202020204227 U CN202020204227 U CN 202020204227U CN 212046763 U CN212046763 U CN 212046763U
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- guide arm
- axle
- semitrailer
- air spring
- suspension system
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Abstract
The utility model belongs to the technical field of vehicle suspension, and discloses a lightweight American air suspension system for a semitrailer, which comprises a guide arm bracket fixedly connected with a frame, an air spring and a guide arm welded with an axle; the front end of the guide arm is hinged with the guide arm bracket through a rubber bushing and a pin shaft, and the middle part of the guide arm is welded with the axle; one end of the air spring is fixedly connected with the frame, and the other end of the air spring is connected with the rear end of the guide arm. The utility model directly welds the guide arm formed by integral casting on the axle, and the screw connection of the fastener is not needed, thereby improving the production line efficiency and reducing the production cost; and the guide arm formed by integral casting has lighter weight and meets the technical requirement of light weight.
Description
Technical Field
The utility model relates to a vehicle suspension technical field, concretely relates to American air suspension system of lightweight for semitrailer.
Background
The steel plate spring balanced suspension is a common suspension form on a heavy truck, more than 90% of the suspension structures of the domestic existing semitrailer adopt series steel plate spring balanced suspensions, and the suspension structure mainly comprises parts such as a steel plate spring, a steel plate spring support, a connecting rod and a U-shaped bolt. The steel plate spring balance suspension has the defects of poor smoothness and comfort of the semitrailer, large unsprung mass, incapability of adapting to the development of light weight of the semitrailer and incapability of simultaneously considering the comfort and the operation stability of the whole semitrailer.
7/21/2017, Shanghai Korman vehicle parts System, Inc. filed for a light American-type semi-trailer air suspension system with application number 201710602617.4, including: the left and right trailing arm bracket assemblies are fixedly connected with the frame; the front end of the left trailing arm assembly is hinged with the left trailing arm support assembly and the right trailing arm assembly through composite bushings, and the rear end of the left trailing arm assembly is fixedly connected with the trailer axle assembly; the front ends of the left and right shock absorbers are respectively hinged with the left and right trailing arm bracket assemblies, and the rear ends of the left and right shock absorbers are respectively hinged with the left and right trailing arm assemblies; a left and a right airbag brackets fixed on the frame; and the upper end and the lower end of the bearing air bag assembly are respectively fixed between the left air bag bracket and the right air bag bracket and between the rear ends of the left longitudinal arm assembly and the right longitudinal arm assembly.
The prior commonly used American air suspension structure for the trailer comprises: the front end of the front guide arm is hinged with the guide arm bracket through a rubber bushing, and the rear part of the front guide arm is welded with the axle; and the upper end and the lower end of the air spring are respectively fixed between the frame and the rear end of the rear guide arm. And the rubber bushing in the front guide arm is hinged with the guide arm support through a pin shaft.
The prior commonly used American air suspension structure for the trailer has the following problems:
1. the front guide arm and the rear guide arm are both formed by stamping and welding steel plates, and are heavy in weight
2. The front supporting arm is welded on the bridge pipe, the rear supporting arm is connected with the front supporting arm through bolts, the structure is complex, the process route comprises welding and screwing, the production line efficiency is affected, and the cost is high.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a semitrailer is with American air suspension system of lightweight.
For solving the technical problem, reach above-mentioned purpose, the utility model discloses the technical scheme who adopts is:
a light American air suspension system for a semitrailer comprises a guide arm bracket 2 fixedly connected with a frame 1, an air spring 7 and a guide arm 9 welded with an axle 5; the front end of the guide arm 9 is hinged with the guide arm bracket 2 through a rubber bushing and a pin shaft 3, and the middle part of the guide arm is welded with the axle 5; one end of the air spring 7 is fixedly connected with the frame, and the other end of the air spring is connected with the rear end of the guide arm 9.
In the utility model discloses in, the middle part of guide arm 9 with weld into whole between the axle 5.
Compared with the prior art, the beneficial effects of the utility model are that:
firstly, the guide arm formed by integral casting is directly welded on the axle, a fastener is not needed for screw connection, the production line efficiency is improved, and the production cost is reduced.
And secondly, the guide arm formed by integral casting is lighter in weight and meets the technical requirements of a light-weight air suspension system.
Thirdly, the guide arm is a casting and is lighter than the single shaft of the similar air suspension by 15kg by adopting design methods such as topological optimization and the like
Drawings
FIG. 1 is a schematic structural view of a conventional air suspension system of a semitrailer;
fig. 2 is a schematic structural diagram of an air suspension system provided by the present invention;
the reference signs are: the device comprises a frame 1, a guide arm support 2, a pin shaft 3, a front guide arm 4, an axle 5, a rear guide arm 6, an air spring 7, a fastener 8 and a guide arm 9.
Detailed Description
The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by a person skilled in the art without creative labor all belong to the protection scope of the present invention.
As shown in fig. 2, the light american air suspension system for a semitrailer is characterized by comprising a guide arm bracket 2 fixedly connected with a frame 1, an air spring 7, and a guide arm 9 welded with an axle 5; the front end of the guide arm 9 is hinged with the guide arm bracket 2 through a rubber bushing and a pin shaft 3, and the middle part of the guide arm is welded with the axle 5; one end of the air spring 7 is fixedly connected with the frame, and the other end of the air spring is connected with the rear end of the guide arm 9.
During assembly, the guide arm bracket 2 is welded to the vehicle frame beforehand, and the guide arm 9 is welded to the axle of the trailer, with the front end of the guide arm 9 being coupled to the guide arm bracket 2 with the pin 3. The rubber bushing is installed at the front end of the guide arm, mainly plays a role of a rotating pair, enables the axle to rotate around the center of a circle when jumping up and down, and can bear part of deformation under working conditions such as side tilting, so that the reliability and the smoothness of a suspension system are higher.
When the vehicle normally runs, impact force generated by uneven road surface is firstly transmitted to the guide arm 9 through the wheels and the axle 5, at the moment, the guide arm 9 drives the air spring 7 and the rubber bushing of the guide arm 9 to rotate, the air spring 7 is compressed and stretched, the impact force from the road surface is attenuated and then transmitted to the vehicle frame 1, and therefore the driving smoothness is guaranteed.
Claims (2)
1. A light American air suspension system for a semitrailer is characterized by comprising a guide arm bracket (2) fixedly connected with a frame (1), an air spring (7) and a guide arm (9) welded with an axle (5); the front end of the guide arm (9) is hinged with the guide arm bracket (2) through a rubber bushing and a pin shaft (3) which are arranged on the guide arm, and the middle part of the guide arm is welded with the axle (5); one end of the air spring (7) is fixedly connected with the frame, and the other end of the air spring is connected with the rear end of the guide arm (9).
2. The American air suspension system for semitrailers according to claim 1, characterized in that the middle portion of said guide arm (9) and said axle (5) are welded integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020204227.9U CN212046763U (en) | 2020-02-19 | 2020-02-19 | American air suspension system of lightweight for semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020204227.9U CN212046763U (en) | 2020-02-19 | 2020-02-19 | American air suspension system of lightweight for semitrailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212046763U true CN212046763U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020204227.9U Active CN212046763U (en) | 2020-02-19 | 2020-02-19 | American air suspension system of lightweight for semitrailer |
Country Status (1)
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| CN (1) | CN212046763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236337A1 (en) * | 2022-06-06 | 2023-12-14 | 广东富华重工制造有限公司 | Air suspension system and axle assembly |
-
2020
- 2020-02-19 CN CN202020204227.9U patent/CN212046763U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236337A1 (en) * | 2022-06-06 | 2023-12-14 | 广东富华重工制造有限公司 | Air suspension system and axle assembly |
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