CN219044262U - Hydro-pneumatic suspension structure and vehicle - Google Patents
Hydro-pneumatic suspension structure and vehicle Download PDFInfo
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- CN219044262U CN219044262U CN202320139430.6U CN202320139430U CN219044262U CN 219044262 U CN219044262 U CN 219044262U CN 202320139430 U CN202320139430 U CN 202320139430U CN 219044262 U CN219044262 U CN 219044262U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The application discloses hydro-pneumatic suspension structure, vehicle, hydro-pneumatic suspension structure is applied to commercial car, include: the hydraulic oil cylinder assembly comprises a guide arm assembly, an oil cylinder assembly taking liquid as a medium, a guide arm support and an oil cylinder support, wherein the guide arm assembly is fixed on an axle of a vehicle, one end of the guide arm assembly is connected with a frame of the vehicle through the guide arm support, and the oil cylinder assembly is connected with the other end of the guide arm assembly through the oil cylinder support. According to the method, the oil gas cylinder assembly is adopted to replace the air spring and the shock absorber assembly, so that the installation space is reduced, the installation requirement of an electric drive bridge is met, and the reliability of the whole vehicle is improved; through the mode of twisting the structure with the guide arm assembly design Z style of calligraphy for the hydro-pneumatic suspension structure can match the hydro-pneumatic cylinder lower carriage of different offset, has increased the installation stroke of hydro-pneumatic cylinder assembly, can reduce the unsettled possibility of wheel unilateral simultaneously, improves the road surface trafficability characteristic and the security of vehicle.
Description
Technical Field
The application relates to the technical field of chassis, in particular to an oil gas suspension structure and a vehicle.
Background
According to the requirements of GB/T7258 standard, the rear axle of dangerous goods transport truck with total mass greater than or equal to 12000kg and all dangerous goods transport semitrailers should be equipped with air suspensions. The air suspension not only effectively transmits the force and moment between the vehicle body and the vehicle axle, but also can buffer the reverse impact of the road surface on the vehicle body, thereby improving the steering stability of the vehicle.
In the prior art, the new energy commercial vehicle is provided with a central integrated electric drive axle, and the existing suspension structure mainly comprises a thrust rod assembly, an air spring assembly, a shock absorber assembly and the like. However, the existing air suspension system has the following problems in arrangement: firstly, the air spring assembly is large in size, small in gap from an axle motor and large in dynamic interference risk; secondly, the shock absorber assembly is arranged on the inner side of the frame, occupies the space of the high-voltage wire harness and the cooling water pipe, and has abrasion phenomenon; thirdly, the air spring assembly is low in reliability and service life and easy to age; meanwhile, when a vehicle passes through a hollow road surface, the vehicle is easy to suspend on one side, and the safety is low.
Disclosure of Invention
The embodiment of the application provides an oil gas suspension structure, vehicle to reach and satisfy the electricity and drive bridge installation demand, reduce installation space, improve air suspension and whole car life, and improve the technical effect of commercial car road surface trafficability characteristic, security.
According to a first aspect of the present application, there is provided a hydro-pneumatic suspension structure for use in a commercial vehicle, the hydro-pneumatic suspension structure comprising: the guide arm assembly, the oil cylinder assembly taking liquid as a medium, the guide arm bracket and the oil cylinder bracket,
the guide arm assembly is fixed on an axle of a vehicle, one end of the guide arm assembly is connected with a frame of the vehicle through the guide arm support, and the oil gas cylinder assembly is connected with the other end of the guide arm assembly through the oil gas cylinder support.
Further, the guide arm assembly comprises a first guide arm and a second guide arm,
the first guide arm is located above the second guide arm, and the length of the first guide arm is not smaller than the length of the second guide arm.
Further, the connection part of the first guide arm and the second guide arm can be bent and form a Z-shaped torsion structure.
Further, the oil cylinder bracket comprises an oil cylinder upper bracket and an oil cylinder lower bracket,
the oil-gas cylinder assembly at least comprises a cylinder body, a piston and a piston rod, wherein the piston rod is arranged in the cylinder body in a penetrating way, the piston is positioned in the cylinder body and fixedly connected with the piston rod,
the upper end of the oil cylinder assembly is fixed on the oil cylinder upper bracket through a bolt, and the lower end of the piston rod of the oil cylinder assembly is fixed on the oil cylinder lower bracket through a bolt.
Further, the oil cylinder upper bracket is connected with the frame, and the oil cylinder lower bracket is connected with the rear end of the second guide arm.
Further, the front end of the first guide arm is flexibly connected with the guide arm bracket.
Further, the hydro-pneumatic suspension structure includes: the upper cover plate of the guide arm and the U-shaped bolt,
the first guide arm is fixed on the axle through the U-shaped bolt, and a guide arm upper cover plate is further arranged between the first guide arm and the U-shaped bolt.
Further, the hydro-pneumatic suspension structure further comprises: the vehicle frame comprises a transverse thrust rod and a transverse thrust rod support, wherein one end of the transverse thrust rod is connected with the vehicle frame through the transverse thrust rod support.
Further, the hydro-pneumatic suspension structure further comprises: and the other end of the transverse thrust rod is connected with the axle through the axle thrust rod bracket.
According to a second aspect of the present application there is provided a vehicle comprising a hydro-pneumatic suspension structure as defined in any one of the first aspects above.
The application has the advantages that: there is provided a hydro-pneumatic suspension structure for a commercial vehicle, comprising: the hydraulic oil cylinder comprises a guide arm assembly, an oil cylinder assembly taking liquid as a medium, a guide arm support and an oil cylinder support, wherein the guide arm assembly is fixed on an axle of a vehicle, one end of the guide arm assembly is connected with a frame of the vehicle through the guide arm support, and the oil cylinder assembly is connected with the other end of the guide arm assembly through the oil cylinder support. On one hand, the oil gas cylinder assembly replaces the air spring and the shock absorber assembly in the existing structure, so that the installation space is reduced, the installation requirement of an electric drive bridge is met, and the reliability service life of the whole vehicle is prolonged; on the other hand, through the mode of the torsion structure that designs into the tip bending with the guide arm assembly for hydro-pneumatic suspension structure can match the hydro-pneumatic cylinder sub-mount of different offset, has increased the installation stroke of hydro-pneumatic cylinder assembly, simultaneously, can make the vehicle when passing through the pothole road surface, the left and right wheels that are located vehicle center bridge and rear axle all contact ground, has reduced the unsettled possibility of unilateral, thereby has improved the road surface trafficability characteristic and the security of vehicle.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic structural diagram of a hydro-pneumatic suspension architecture in one embodiment of the present application;
FIG. 2 is an assembly view of a hydro-pneumatic suspension architecture in one embodiment of the present application;
FIG. 3 is a schematic illustration of a pilot arm assembly of a hydro-pneumatic suspension architecture in accordance with one embodiment of the present application.
In the figure: 1. guide arm assembly: 101-a first guide arm, 102-a second guide arm; 2. and the oil-gas cylinder assembly comprises: 201-cylinder body, 202-piston rod; 3. a guide arm bracket; 4. an oil cylinder upper bracket; 5. an oil cylinder lower bracket; 6. a guide arm upper cover plate; 7. u-shaped bolts; 8. a transverse thrust rod; 9. a transverse thrust rod support; 10. an axle thrust rod bracket.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a hydro-pneumatic suspension structure, and fig. 2 is an assembly view of the hydro-pneumatic suspension structure. In one embodiment of the present application, a hydro-pneumatic suspension structure is provided, which is applied to a commercial vehicle, as shown in fig. 1, and includes: the hydraulic oil cylinder device comprises a guide arm assembly 1, an oil cylinder assembly 2 taking liquid as a medium, a guide arm support 3 and an oil cylinder support (comprising an oil cylinder upper support 4 and an oil cylinder lower support 5), wherein the guide arm assembly 1 is fixed on an axle of a vehicle, one end of the guide arm assembly 1 is connected with a frame of the vehicle through the guide arm support 3, and the oil cylinder assembly 2 is connected with the other end of the guide arm assembly 1 through the oil cylinder support, as shown in fig. 2.
Specifically, in the hydro-pneumatic suspension structure, the guide arm assembly 1 and the hydro-pneumatic cylinder assembly 2 include at least two, and of course, the number of the respective components such as the guide arm assembly, the hydro-pneumatic cylinder assembly, the guide arm bracket, and the hydro-pneumatic cylinder bracket may be appropriately increased according to the model of the commercial vehicle. For example, in the embodiment shown in fig. 1 and 2, the hydro-pneumatic suspension structure of the commercial vehicle includes four guide arm assemblies and four hydro-pneumatic cylinder assemblies, wherein the four guide arm assemblies are respectively arranged at the left side and the right side of the frame, and each guide arm assembly is provided with a hydro-pneumatic cylinder assembly. Of course, only one of the pilot arm assemblies and one of the cylinder assemblies are labeled for simplicity.
It can be appreciated that in this embodiment, the oil-gas suspension structure adopts an oil-gas cylinder assembly to replace an air suspension structure in the prior art in which an air spring assembly and a damper assembly are combined, and meanwhile, the oil-gas cylinder assembly in this embodiment can use liquid as a medium, so that on one hand, damping characteristics can be realized when the liquid medium flows through a piston hole of the oil-gas cylinder assembly, and on the other hand, a damping function of a commercial vehicle can be realized by compressing inert gas in an air cavity of the oil-gas cylinder assembly. Therefore, the design not only reduces the installation space of the oil gas suspension structure and meets the arrangement requirement of the whole vehicle, but also improves the comfort and reliability of the whole vehicle.
In one embodiment of the present application, as shown in fig. 3, the guide arm assembly in the hydro-pneumatic suspension structure includes a first guide arm 101 and a second guide arm 102, the first guide arm 101 is located above the second guide arm 102, the first guide arm 101 and the second guide arm 102 are in torsion connection, and the length 101 of the first guide arm is not less than the length of the second guide arm 102.
Further, the connection between the first guide arm 101 and the second guide arm 102 can be bent and form a zigzag torsion structure. It can be appreciated that the second guide arm 102 can twist around the inner side of the vehicle relative to the first guide arm 101, and because the oil cylinder assembly 2 is arranged on the second guide arm 102 along the horizontal direction, the stroke requirements of different oil cylinder assemblies can be met through the oil cylinder lower brackets with different offset distances, so that the road surface trafficability is improved, and the suspended state of the single-side wheels is avoided.
In one embodiment of the present application, the oil cylinder support includes an oil cylinder upper support 4 and an oil cylinder lower support 5, the oil cylinder assembly includes at least a cylinder 201, a piston (not shown in the figure) and a piston rod 202, the piston rod 202 penetrates through the cylinder 201, the piston is located in the cylinder 201 and is fixedly connected with the piston rod 202, the upper end of the oil cylinder assembly 2 is fixed on the oil cylinder upper support 4 through a bolt, and the lower end of the piston rod 202 of the oil cylinder assembly 2 is fixed on the oil cylinder lower support 5 through a bolt.
Further, the upper bracket 4 of the oil cylinder is connected with the frame of the vehicle, and the lower bracket 5 of the oil cylinder is connected with the rear end of the second guide arm 102, so that the assembly between the oil cylinder assembly and the frame and the guide arm assembly can be realized through the oil cylinder bracket.
In one embodiment of the present application, the front end of the first guiding arm 101 is flexibly connected to the guiding arm support 3, so as to ensure rotatability.
Further, as shown in connection with fig. 1-3, the hydro-pneumatic suspension structure includes: it can be seen that the middle part of the first guide arm 101 of the guide arm assembly 1 can be fixed on the axle through the U-shaped bolt 7, and the guide arm upper cover 6 is further arranged between the first guide arm 101 and the U-shaped bolt 7 to increase the contact area and prevent loosening.
In some embodiments of the present application, the hydro-pneumatic suspension structure further comprises: the vehicle frame comprises a transverse thrust rod 8 and a transverse thrust rod support 9, wherein one end of the transverse thrust rod 8 is connected with the vehicle frame through the transverse thrust rod support 9. Further, the hydro-pneumatic suspension structure further comprises: an axle thrust rod bracket 10, the other end of the transverse thrust rod 8 being connected to the axle of the vehicle by the axle thrust rod bracket 10. It will be appreciated that the hydro-pneumatic suspension structure described in this application is carried by both the pilot arm assembly and the hydro-pneumatic cylinder assembly, with the longitudinal force being transferred by the pilot arm assembly 1 and the transverse force being transferred by the transverse thrust rod 8, and thus the operational requirements of carrying and damping are achieved.
In an embodiment of the present application, a vehicle is also presented, comprising a hydro-pneumatic suspension structure as described in any of the above embodiments. The oil gas suspension structure is applied to commercial vehicles, so that the comfort and safety can be met, the installation space is saved, and the whole vehicle arrangement requirement is further met.
In summary, the application provides a hydro-pneumatic suspension structure and a vehicle, which reduce the installation space, meet the installation requirement of an electric drive bridge and improve the reliability life of the whole vehicle by replacing the air spring and the shock absorber assembly in the existing structure with a hydro-pneumatic cylinder assembly; through with the Z style of calligraphy torsion structure mode that the guide arm assembly was designed into the tip and bend, make hydro-pneumatic suspension structure can match the hydro-pneumatic cylinder lower carriage of different offset, increased the installation stroke of hydro-pneumatic cylinder assembly, can make the vehicle when passing through the pothole road surface simultaneously, the left and right wheels of vehicle center bridge and rear axle all contact ground, reduced the unsettled possibility of unilateral, thereby improved the road surface trafficability characteristic and the security of vehicle.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, terms such as "connected," "fixed" and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is two or more. It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
In the description of the present specification, a description of the terms "one embodiment," "some embodiments," "one embodiment," "example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely a specific embodiment of the utility model and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the utility model more fully, and that the scope of the utility model is defined by the appended claims.
Claims (10)
1. A hydro-pneumatic suspension structure, characterized by being applied to commercial vehicles, the hydro-pneumatic suspension structure comprising: the guide arm assembly, the oil cylinder assembly taking liquid as a medium, the guide arm bracket and the oil cylinder bracket,
the guide arm assembly is fixed on an axle of a vehicle, one end of the guide arm assembly is connected with a frame of the vehicle through the guide arm support, and the oil gas cylinder assembly is connected with the other end of the guide arm assembly through the oil gas cylinder support.
2. The hydro-pneumatic suspension structure of claim 1, wherein the pilot arm assembly comprises a first pilot arm and a second pilot arm,
the first guide arm is located above the second guide arm, and the length of the first guide arm is not smaller than the length of the second guide arm.
3. The hydro-pneumatic suspension structure of claim 2 wherein the junction of the first and second guide arms is capable of bending and forming a zig-zag torsion structure.
4. The hydro-pneumatic suspension structure of claim 2 wherein the hydro-pneumatic cylinder support comprises an upper hydro-pneumatic cylinder support and a lower hydro-pneumatic cylinder support,
the oil-gas cylinder assembly at least comprises a cylinder body, a piston and a piston rod, wherein the piston rod is arranged in the cylinder body in a penetrating way, the piston is positioned in the cylinder body and fixedly connected with the piston rod,
the upper end of the oil cylinder assembly is fixed on the oil cylinder upper bracket through a bolt, and the lower end of the piston rod of the oil cylinder assembly is fixed on the oil cylinder lower bracket through a bolt.
5. The hydro-pneumatic suspension structure of claim 4 wherein said upper cylinder mount is connected to said frame and said lower cylinder mount is connected to a rear end of said second pilot arm.
6. The hydro-pneumatic suspension structure of claim 2 wherein the front end of the first pilot arm is flexibly coupled to the pilot arm support.
7. The hydro-pneumatic suspension structure of claim 6, wherein the hydro-pneumatic suspension structure comprises: the upper cover plate of the guide arm and the U-shaped bolt,
the first guide arm is fixed on the axle through the U-shaped bolt, and a guide arm upper cover plate is further arranged between the first guide arm and the U-shaped bolt.
8. The hydro-pneumatic suspension structure of claim 1, wherein the hydro-pneumatic suspension structure further comprises: the vehicle frame comprises a transverse thrust rod and a transverse thrust rod support, wherein one end of the transverse thrust rod is connected with the vehicle frame through the transverse thrust rod support.
9. The hydro-pneumatic suspension structure of claim 8, further comprising: and the other end of the transverse thrust rod is connected with the axle through the axle thrust rod bracket.
10. A vehicle comprising a hydro-pneumatic suspension structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320139430.6U CN219044262U (en) | 2023-02-07 | 2023-02-07 | Hydro-pneumatic suspension structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320139430.6U CN219044262U (en) | 2023-02-07 | 2023-02-07 | Hydro-pneumatic suspension structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219044262U true CN219044262U (en) | 2023-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320139430.6U Active CN219044262U (en) | 2023-02-07 | 2023-02-07 | Hydro-pneumatic suspension structure and vehicle |
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| CN (1) | CN219044262U (en) |
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- 2023-02-07 CN CN202320139430.6U patent/CN219044262U/en active Active
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