CN217672038U - Air suspension of hydraulic low flat-bed semitrailer - Google Patents
Air suspension of hydraulic low flat-bed semitrailer Download PDFInfo
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- CN217672038U CN217672038U CN202221105696.0U CN202221105696U CN217672038U CN 217672038 U CN217672038 U CN 217672038U CN 202221105696 U CN202221105696 U CN 202221105696U CN 217672038 U CN217672038 U CN 217672038U
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Abstract
An air suspension of a hydraulic low-flat-bed semitrailer comprises a frame, wherein an air suspension device is arranged at the lower part of the frame and comprises a load-carrying air bag, the load-carrying air bag is of a two-layer structure, an inner air bag is arranged at the inner layer of the load-carrying air bag, an outer air bag is arranged at the outer layer of the load-carrying air bag, a middle cavity is formed between the inner air bag and the outer air bag, and an air pressure sensor is arranged in the middle cavity; an axle which is vertical to the frame is connected below the air suspension device, and a cross-shaped reinforcing rib is arranged inside the axle; the self-weight-bearing airbag has the advantages of simple structure, difficulty in failure of the airbag, capability of adapting to complex road conditions, light self weight and large load.
Description
The technical field is as follows:
the utility model belongs to the technical field of the axletree assembly technique and specifically relates to a hydraulic pressure low flat-bed semi-trailer's air suspension.
Background art:
the air suspension system is a configuration of a vehicle suspension, and compressed air formed by an air compressor is sent to a spring and an air bag of a shock absorber, and the height and the hardness degree of a vehicle are changed by adjusting the pressure of the air. The low flat plate semi-trailer is heavy, when a washboard road or an earth-rock road passes through, the air suspension can bear very large working pressure, the road condition is complex, and flying rocks easily damage an air bag suspended by air. When the air suspension system has problems, the air suspension of the vehicle collapses, the vehicle and the wheel arch are close to each other, and the vehicle is high while the vehicle is low, so that the use and the driving safety of the vehicle are influenced.
The invention content is as follows:
for solving the problem, overcome the not enough of prior art, the utility model provides a simple structure, the gasbag is difficult for breaking down, can adapt to complicated road conditions, the dead weight is light, the air suspension of the big hydraulic pressure low flat-bed semitrailer of load.
In order to achieve the purpose, the utility model provides an air suspension of a hydraulic low flat-bed semitrailer, which comprises a frame, wherein the lower part of the frame is provided with an air suspension device, the air suspension device comprises a load air bag, the load air bag is arranged into a two-layer structure, the inner layer of the load air bag is an inner air bag, the outer layer of the load air bag is an outer air bag, a middle cavity is formed between the inner air bag and the outer air bag, and an air pressure sensor is arranged in the middle cavity;
the lower part of the air suspension device is also connected with an axle vertical to the frame, and a cross-shaped reinforcing rib is arranged inside the axle.
Furthermore, the air suspension device further comprises a support frame, the upper end of the support frame is connected with the frame, the lower end of the support frame is connected with a guide arm in a rotatable mode, the load air bag is arranged at the end portion of the guide arm, and the upper end of the load air bag is connected with the frame.
Further, the axle wall thickness of the axle is set to 20 mm, and the width of the axle is set to 120 mm.
Furthermore, the air suspension device also comprises a U-shaped piece for fixedly mounting the axle, and the U-shaped piece is connected with the guide arm through a bolt.
Furthermore, the support frame is also connected with an oil cylinder, and the other end of the oil cylinder is connected with the middle part of the guide arm.
The utility model has the advantages that:
the utility model provides a low flatbed semitrailer's of hydraulic pressure air suspension has simple structure, the gasbag is difficult for breaking down, can adapt to complicated road conditions, the dead weight is light, the big advantage of load.
The load gasbag is including playing interior gasbag and guard action's outer gasbag, forms middle chamber between interior gasbag and the outer gasbag, when interior gasbag when leading to gas leakage because of using for a long time ageing, high-pressure gas can get into middle chamber, can not leak outside the outer gasbag to maintain the atmospheric pressure of load gasbag, air compressor just can not be because of gas leakage and be in operating condition all the time, lead to more serious trouble.
Meanwhile, as high-pressure gas enters the middle cavity, the air pressure sensor detects that the air pressure rises and can send a signal, so that a driver can know that the load air bag breaks down in time.
Compare traditional axletree, the utility model provides an axletree width is littleer, reaches 120 millimeters, at axletree internal welding cross strengthening rib, improves antitorque and bending resistance, and the at utmost realizes subtracting heavy effect when guaranteeing axletree intensity.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
in the drawings: 1. the device comprises a frame, 2, a support frame, 3, a guide arm, 4, an oil cylinder, 51, an outer air bag, 52, an inner air bag, 53, a middle cavity, 54, an air pressure sensor, 61, an axle, 62, a cross-shaped reinforcing rib, 7 and a U-shaped part.
The specific implementation mode is as follows:
in order to make the purpose, technical solution and advantages of the present invention clearer, the attached drawings 1 of the present invention will be combined below, to carry out more detailed description of the present invention.
The utility model provides an air suspension of hydraulic pressure low flatbed semitrailer, including frame 1, frame 1 lower part is provided with air suspension, and air suspension includes the load gasbag, and the load gasbag sets up to two-layer structure, and the inlayer of load gasbag is interior gasbag 52, and the skin of load gasbag is outer gasbag 51, forms middle chamber 53 between interior gasbag 52 and outer gasbag 51, is provided with baroceptor 54 in the middle chamber 53; an axle 61 which is vertical to the frame 1 is connected below the air suspension device, and a cross-shaped reinforcing rib 62 is arranged in the axle 61; the air suspension device also comprises a support frame 2, the upper end of the support frame 2 is connected with the frame 1, the lower end of the support frame 2 is connected with a guide arm 3 in a rotatable mode, a load air bag is arranged at the end part of the guide arm 3, and the upper end of the load air bag is connected with the frame 1; the axle wall thickness of the axle 61 is set to 20 mm, and the width of the axle 61 is set to 120 mm; the air suspension device also comprises a U-shaped part 7 for fixedly mounting the axle 61, wherein the U-shaped part 7 is connected with the guide arm 3 through a bolt; the support frame 2 is also connected with an oil cylinder 4, and the other end of the oil cylinder 4 is connected with the middle part of the guide arm 3.
The utility model discloses an one of them embodiment as follows:
the air suspension device comprises a frame 1, wherein a plurality of groups of air suspension devices are uniformly arranged on the lower portion of the frame 1, and each group of air suspension devices comprises a support frame 2, a guide arm 3, an oil cylinder 4, a load air bag and an axle 61.
The air suspension device comprises a support frame 2, the upper end of the support frame 2 is connected with a frame 1, the lower end of the support frame 2 is connected with a guide arm 3 in a rotatable mode, a load air bag is arranged at the end part of the guide arm 3, and the upper end of the load air bag is connected with the frame 1; the air suspension device also comprises a U-shaped part 7 for fixedly mounting the axle 61, wherein the U-shaped part 7 is connected with the guide arm 3 through a bolt; the support frame 2 is also connected with an oil cylinder 4, and the other end of the oil cylinder 4 is connected with the middle part of the guide arm 3; the load-carrying air bag is of a two-layer structure, the inner layer of the load-carrying air bag is an inner air bag 52, the outer layer of the load-carrying air bag is an outer air bag 51, a middle cavity 53 is formed between the inner air bag 52 and the outer air bag 51, and an air pressure sensor 54 is arranged in the middle cavity 53; when the inner air bag 52 leaks air due to long-term use, high-pressure air enters the intermediate chamber 53 and does not leak to the outside of the outer air bag 51, so that the air pressure of the load-carrying air bag is maintained, and the air compressor is not in a working state all the time due to air leakage, which causes more serious faults.
Meanwhile, because high-pressure gas enters the middle cavity 53, the air pressure sensor 54 detects the rise of air pressure and can send out a signal, so that a driver can know that the load-carrying air bag breaks down in time.
An axle 61 which is vertical to the frame 1 is connected below the air suspension device, and a cross-shaped reinforcing rib 62 is arranged inside the axle 61; axle 61's axle wall thickness sets up to 20 millimeters, compares traditional axletree 61, the utility model provides an axletree 61 width is littleer, reaches 120 millimeters, at axletree 61 internal weld cross strengthening rib 62, improves antitorque and bending resistance, and the at utmost realizes subtracting heavy effect when guaranteeing axletree 61 intensity.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an air suspension of hydraulic pressure low flatbed semitrailer, includes the frame, its characterized in that: an air suspension device is arranged at the lower part of the frame and comprises a load air bag, the load air bag is of a two-layer structure, the inner layer of the load air bag is an inner air bag, the outer layer of the load air bag is an outer air bag, a middle cavity is formed between the inner air bag and the outer air bag, and an air pressure sensor is arranged in the middle cavity;
the air suspension device below still is connected with the axletree with frame mutually perpendicular, the inside cross strengthening rib that is provided with of axletree.
2. The air suspension of the hydraulic low flatbed semi-trailer according to claim 1, characterized in that: the air suspension device further comprises a support frame, the upper end of the support frame is connected with the frame, the lower end of the support frame is connected with a guide arm in a rotatable mode, the load air bag is arranged at the end part of the guide arm, and the upper end of the load air bag is connected with the frame.
3. The air suspension of the hydraulic low flatbed semi-trailer according to claim 1, characterized in that: the axle wall thickness of the axle is set to 20 mm, and the width of the axle is set to 120 mm.
4. The air suspension of the hydraulic low flatbed semi-trailer according to claim 2, characterized in that: the air suspension device further comprises a U-shaped piece for fixedly mounting the axle, and the U-shaped piece is connected with the guide arm through a bolt.
5. The air suspension of the hydraulic low flatbed semi-trailer according to claim 2, characterized in that: the support frame is further connected with an oil cylinder, and the other end of the oil cylinder is connected with the middle part of the guide arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221105696.0U CN217672038U (en) | 2022-05-10 | 2022-05-10 | Air suspension of hydraulic low flat-bed semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221105696.0U CN217672038U (en) | 2022-05-10 | 2022-05-10 | Air suspension of hydraulic low flat-bed semitrailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217672038U true CN217672038U (en) | 2022-10-28 |
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ID=83738080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221105696.0U Active CN217672038U (en) | 2022-05-10 | 2022-05-10 | Air suspension of hydraulic low flat-bed semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217672038U (en) |
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2022
- 2022-05-10 CN CN202221105696.0U patent/CN217672038U/en active Active
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