CN117301779A - A front double-axle oil and gas spring suspension structure - Google Patents
A front double-axle oil and gas spring suspension structure Download PDFInfo
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- CN117301779A CN117301779A CN202311407025.9A CN202311407025A CN117301779A CN 117301779 A CN117301779 A CN 117301779A CN 202311407025 A CN202311407025 A CN 202311407025A CN 117301779 A CN117301779 A CN 117301779A
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Abstract
The invention discloses a front double-bridge hydro-pneumatic spring suspension structure, which relates to the technical field of spring suspensions and comprises a frame, wherein one end of the frame is fixedly connected with a first hydro-pneumatic spring suspension cylinder support assembly, one end of the frame, which is close to the first hydro-pneumatic spring suspension cylinder support assembly, is also fixedly connected with a second hydro-pneumatic spring suspension cylinder support assembly, a shaft is arranged below the first hydro-pneumatic spring suspension cylinder support assembly, a two shaft is arranged below the second hydro-pneumatic spring suspension cylinder support assembly, hubs are arranged at two ends of the shaft and the two shafts, and buffer components are arranged among the shaft and the first hydro-pneumatic spring suspension cylinder support assembly, the two shafts and the second hydro-pneumatic spring suspension cylinder support assembly; the invention can improve the bearing capacity, improve the driving comfort of severe road conditions and reduce the turning radius of the mining truck. The front double-axle type anti-collision device can adapt to the road surface with undulating mining areas, prevent the axles from being suspended, furthest exert the bearing capacity of the front double-axle, and improve the shock resistance of the heavy-load downhill front axle.
Description
Technical Field
The invention relates to the technical field of spring suspensions, in particular to a front double-bridge hydro-pneumatic spring suspension structure.
Background
The front double steering axle structure is mainly applied to heavy trucks and is beneficial to improving the carrying capacity of vehicles. At present, the domestic front double steering axle structure generally adopts two independent leaf spring suspension structures. The structure is applied to a wide mine card, so that the vehicle wheelbase is lengthened, and the turning radius is increased. And when the mining area severe working condition is used, two independent leaf spring suspension structures can cause the inconsistent condition of two bridge actual loads because of reasons such as ground fluctuation, the leaf spring fracture appears, two bridge tire wearing and tearing and other faults, seriously influence availability factor, reduce economic benefits.
In order to solve the above problems, we provide a front double-axle hydro-pneumatic spring suspension structure to solve the above problems.
Disclosure of Invention
The invention aims to provide a front double-axle hydro-pneumatic spring suspension structure so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the front double-bridge hydro-pneumatic spring suspension structure comprises a frame, wherein one end of the frame is fixedly connected with a first hydro-pneumatic spring suspension cylinder support assembly, one end of the frame, which is close to the first hydro-pneumatic spring suspension cylinder support assembly, is also fixedly connected with a second hydro-pneumatic spring suspension cylinder support assembly, a shaft is arranged below the first hydro-pneumatic spring suspension cylinder support assembly, a two shaft is arranged below the second hydro-pneumatic spring suspension cylinder support assembly, hubs are respectively arranged at two ends of the shaft and the two shafts, and buffer assemblies are respectively arranged among the shaft and the first hydro-pneumatic spring suspension cylinder support assembly, the two shafts and the second hydro-pneumatic spring suspension cylinder support assembly;
the frame is fixedly connected with a longitudinal thrust rod support assembly at the middle position of the first hydro-pneumatic spring suspension cylinder support assembly and the second hydro-pneumatic spring suspension cylinder support assembly, and a first limiting assembly for fixing front and rear postures of a first shaft and a second shaft is arranged on the longitudinal thrust rod support assembly;
a transverse pushing fixed cross beam assembly is arranged between the lower ends of the first hydro-pneumatic spring suspension cylinder bracket assembly and the second hydro-pneumatic spring suspension cylinder bracket assembly on two sides of the frame, and a second limiting assembly for limiting left and right postures of the first shaft and the second shaft is arranged between the transverse pushing fixed cross beam assembly and the first shaft and the second hydro-pneumatic spring suspension cylinder bracket assembly;
and steering assemblies for steering the hubs are arranged on the first shaft and the second shaft.
As a further scheme of the invention: the buffer assembly comprises a hydro-pneumatic spring suspension cylinder, the hydro-pneumatic spring suspension cylinder is respectively arranged between a first hydro-pneumatic spring suspension cylinder support assembly and a first shaft and a second hydro-pneumatic spring suspension cylinder support assembly and a second shaft, the upper end of the hydro-pneumatic spring suspension cylinder is rotationally connected through an upper pin shaft of the suspension cylinder, the lower end of the hydro-pneumatic spring suspension cylinder is rotationally connected through a lower pin shaft of the suspension cylinder, and the longitudinal thrust rod support assembly is further provided with an energy storage assembly for balancing the hydro-pneumatic spring suspension cylinder.
As still further aspects of the invention: the energy storage assembly comprises an energy accumulator which is fixedly connected to the middle position of the upper end of the longitudinal thrust rod support assembly and is communicated with the hydro-pneumatic spring suspension cylinder through an energy accumulator oil pipe.
As still further aspects of the invention: the first limiting assembly comprises a longitudinal force rod assembly, the longitudinal force rod assembly is arranged at the two sides of the lower end of the longitudinal thrust rod support assembly, the longitudinal force rod assembly is rotationally connected with the longitudinal thrust rod support assembly by adopting a longitudinal pushing fixed pin shaft, and one end, far away from the longitudinal thrust rod support assembly, of the longitudinal force rod assembly is respectively connected with a first shaft and a second shaft.
As still further aspects of the invention: the second limiting assembly comprises a transverse pushing fixed pin shaft, the transverse pushing fixed pin shaft is arranged at one side of the transverse pushing fixed beam assembly, the transverse pushing fixed pin shaft is rotationally connected with a transverse thrust rod assembly, and one end, far away from the transverse pushing fixed beam assembly, of the transverse thrust rod assembly is rotationally connected with a shaft and a first hydro-pneumatic spring suspension cylinder support assembly respectively.
As still further aspects of the invention: the steering assembly comprises a steering cross rod assembly, and the steering cross rod assembly is arranged between steering parts of hubs at two ends of the first shaft and the second shaft and used for synchronously steering the hubs at two ends of the first shaft and the second shaft.
As still further aspects of the invention: and steering oil cylinder assemblies for driving the hub to steer are arranged on the shaft and the first hydro-pneumatic spring suspension cylinder bracket assembly.
As still further aspects of the invention: and the steering straight pull rod assembly is arranged between the steering straight pull rod assembly and the two shafts and between the steering straight pull rod assembly and the one shaft, one end of the steering straight pull rod assembly is connected with the one shaft steering arm, and the other end of the steering straight pull rod assembly is connected with the hydro-pneumatic spring suspension cylinder steering arm.
As still further aspects of the invention: both ends of the steering straight pull rod assembly are connected to the lower ends of the first-axis steering knuckle arm and the second-axis steering knuckle arm through ball heads to form a steering trapezoid.
As still further aspects of the invention: the accumulator oil pipe is a flexible pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the suspension structure provided by the invention, the wheelbase is short, when the suspension structure passes through a fluctuant road surface, the hydro-pneumatic spring suspension cylinder can balance system flow through the energy accumulator, so that the system pressure is stabilized, and the impact force is absorbed; the air pressure in the suspension cylinder of the oil-gas spring of the first axle and the second axle is balanced, the impact between the tire and the road surface is reduced, the tire is not separated from the ground, the bearing capacity of the front double axle is exerted, and the shock resistance of the front axle is improved.
2. The invention can improve the bearing capacity, improve the driving comfort of severe road conditions and reduce the turning radius of the mining truck. The front double-axle type anti-collision device can adapt to the road surface with undulating mining areas, prevent the axles from being suspended, furthest exert the bearing capacity of the front double-axle, and improve the shock resistance of the heavy-load downhill front axle.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic left-view structure of the present invention.
Wherein: 1. a shaft; 2. hydro-pneumatic spring suspension cylinder; 3. the first hydro-pneumatic spring suspension cylinder bracket assembly; 4. an accumulator oil line; 5. an accumulator; 6. a longitudinal thrust rod bracket assembly; 7. a two-axis; 8. a steering cross bar assembly; 9. a longitudinal force bar assembly; 10. steering tie rod assembly; 11. longitudinally pushing the fixed pin shaft; 12. the pin shaft is arranged on the suspension cylinder; 13. a suspension cylinder lower pin shaft; 14. a transverse pushing and fixing beam assembly; 15. the fixed pin shaft is horizontally pushed; 16. a transverse thrust rod assembly; 17. a frame; 18. and the second hydro-pneumatic spring suspension cylinder bracket assembly.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, in an embodiment of the present invention, a front double-axle hydro-pneumatic spring suspension structure includes a frame 17, one end of the frame 17 is fixedly connected with a first hydro-pneumatic spring suspension cylinder support assembly 3, one end of the frame 17, which is close to the first hydro-pneumatic spring suspension cylinder support assembly 3, is also fixedly connected with a second hydro-pneumatic spring suspension cylinder support assembly 18, a shaft 1 is arranged below the first hydro-pneumatic spring suspension cylinder support assembly 3, a two shaft 7 is arranged below the second hydro-pneumatic spring suspension cylinder support assembly 18, hubs are respectively arranged at two ends of the shaft 1 and the two shaft 7, and buffer components are respectively arranged between the shaft 1 and the first hydro-pneumatic spring suspension cylinder support assembly 3, the two shaft 7 and the second hydro-pneumatic spring suspension cylinder support assembly 18; the invention can improve the bearing capacity, improve the driving comfort of severe road conditions, reduce the turning radius of the mine truck, adapt to the fluctuating road surface of the mine area, prevent the suspension of the axle, furthest exert the bearing capacity of the front double axle and improve the shock resistance of the heavy-load downhill front axle. The buffer component comprises a hydro-pneumatic spring suspension cylinder 2, the hydro-pneumatic spring suspension cylinder 2 is respectively arranged between a first hydro-pneumatic spring suspension cylinder bracket assembly 3, a first shaft 1, a second hydro-pneumatic spring suspension cylinder bracket assembly 18 and a second shaft 7, the upper end of the hydro-pneumatic spring suspension cylinder 2 is rotationally connected through a suspension cylinder upper pin shaft 12, the lower end of the hydro-pneumatic spring suspension cylinder 2 is rotationally connected through a suspension cylinder lower pin shaft 13, and the longitudinal thrust rod bracket assembly 6 is also provided with an energy storage component for balancing the hydro-pneumatic spring suspension cylinder 2; the energy storage assembly comprises an energy accumulator 5, the energy accumulator 5 is fixedly connected to the middle position of the upper end of the longitudinal thrust rod bracket assembly 6, and the energy accumulator 5 is communicated with the hydro-pneumatic spring suspension cylinder 2 through an energy accumulator oil pipe 4; the accumulator oil pipe 4 is a flexible pipe. The left and right sides of the frame 17 are provided with longitudinal thrust rod bracket assemblies 6 which are bolted on the ventral surface of the frame 17 and positioned between the first shaft 1 and the second shaft 7, and the longitudinal thrust rod bracket assemblies 6 are connected to fix the first shaft 1 and the second shaft 7 through longitudinal pushing and longitudinal pushing fixing pin shafts 11, so that the front and back postures of the first shaft 1 and the second shaft 7 are fixed.
The frame 17 is fixedly connected with a longitudinal thrust rod support assembly 6 at a position positioned between the first hydro-pneumatic spring suspension cylinder support assembly 3 and the second hydro-pneumatic spring suspension cylinder support assembly 18, and a first limiting assembly for fixing the front-back postures of the first shaft 1 and the second shaft 7 is arranged on the longitudinal thrust rod support assembly 6; the first limiting component comprises a longitudinal force rod assembly 9, the longitudinal force rod assembly 9 is arranged at the two sides of the lower end of the longitudinal thrust rod support assembly 6, the longitudinal force rod assembly 9 is rotationally connected with the longitudinal thrust rod support assembly 6 by adopting a longitudinal pushing fixed pin shaft 11, and one end, far away from the longitudinal thrust rod support assembly 6, of the longitudinal force rod assembly 9 is respectively connected with the first shaft 1 and the second shaft 7.
A transverse pushing fixed beam assembly 14 is arranged between the lower ends of the first hydro-pneumatic spring suspension cylinder bracket assembly 3 and the second hydro-pneumatic spring suspension cylinder bracket assembly 18 on two sides of the frame 17, and a second limiting assembly for limiting the left and right postures of the first shaft 1 and the second shaft 7 is arranged between the transverse pushing fixed beam assembly 14 and the first shaft 1 and the second hydro-pneumatic spring suspension cylinder bracket assembly 18; the second limiting component comprises a transverse pushing fixed pin shaft 15, the transverse pushing fixed pin shaft 15 is arranged at one side of the transverse pushing fixed beam assembly 14, the transverse pushing fixed pin shaft 15 is rotationally connected with a transverse thrust rod assembly 16, and one end of the transverse thrust rod assembly 16, which is far away from the transverse pushing fixed beam assembly 14, is rotationally connected with a shaft 1 and the first hydro-pneumatic spring suspension cylinder bracket assembly 3 respectively; the two ends of the transverse thrust rod assembly 16 are respectively connected with the transverse thrust fixed beam assembly 14 and the first shaft 1 and the second shaft 7 through the transverse thrust fixed pin shafts 15, and the left and right postures of the first shaft 1 and the second shaft 7 are fixed;
steering components for steering the hubs are arranged on the first shaft 1 and the second shaft 7; the steering assembly comprises a steering cross rod assembly 8, wherein the steering cross rod assembly 8 is arranged between steering parts of hubs at two ends of the primary shaft 1 and the secondary shaft 7 and is used for synchronously steering the hubs at two ends of the primary shaft 1 and the secondary shaft 7; the steering oil cylinder assemblies for driving the wheel hub to steer are arranged on the shaft 1 and the first hydro-pneumatic spring suspension cylinder bracket assembly 3; the steering straight pull rod assembly 10 is arranged between the steering straight pull rod assembly 10 and the two shafts 7 and the one shaft 1, one end of the steering straight pull rod assembly 10 is connected with the steering arm of the one shaft 1, and the other end of the steering straight pull rod assembly 10 is connected with the steering arm of the hydro-pneumatic spring suspension cylinder 2; both ends of the steering straight pull rod assembly 10 are connected to the lower ends of the steering knuckle arms of the first shaft 1 and the second shaft 7 through ball heads to form a steering trapezoid. The steering straight pull rod assembly 10 is combined with the one shaft 1 and the two shafts 7 to steer the trapezoid, front double-axle synchronous steering is realized, an angle difference is formed, and the steering oil cylinder assembly provides power for wheel steering.
The working principle of the invention is as follows: the hydro-pneumatic spring suspension cylinder 2 is connected with the energy accumulator 5 through 2 energy accumulator oil pipes 4, and the energy accumulator balances system flow and stabilizes system pressure when the vehicle passes through a hollow road surface, so that the air pressure in the one-axis and two-axis hydro-pneumatic spring suspension cylinders is balanced, the impact property of the tire and the road surface is reduced, the tire is not separated from the ground, the bearing capacity of the front double bridge is exerted, and the shock resistance of the front bridge is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Although the present disclosure describes embodiments in terms of one embodiment, not every embodiment is provided with only one embodiment, and the description is for clarity only, and those skilled in the art should recognize that the embodiments described in the disclosure may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
Claims (10)
1. The front double-bridge hydro-pneumatic spring suspension structure comprises a frame (17), and is characterized in that one end of the frame (17) is fixedly connected with a first hydro-pneumatic spring suspension cylinder support assembly (3), one end of the frame (17) close to the first hydro-pneumatic spring suspension cylinder support assembly (3) is fixedly connected with a second hydro-pneumatic spring suspension cylinder support assembly (18), a shaft (1) is arranged below the first hydro-pneumatic spring suspension cylinder support assembly (3), a two-shaft (7) is arranged below the second hydro-pneumatic spring suspension cylinder support assembly (18), hubs are arranged at two ends of the shaft (1) and the two-shaft (7), and a buffer assembly is arranged between the shaft (1) and the first hydro-pneumatic spring suspension cylinder support assembly (3), and between the shaft (7) and the second hydro-pneumatic spring suspension cylinder support assembly (18);
the vehicle frame (17) is fixedly connected with a longitudinal thrust rod support assembly (6) at a position between the first hydro-pneumatic spring suspension cylinder support assembly (3) and the second hydro-pneumatic spring suspension cylinder support assembly (18), and a first limiting assembly for fixing the front-back postures of the first shaft (1) and the second shaft (7) is arranged on the longitudinal thrust rod support assembly (6);
a transverse pushing fixed beam assembly (14) is arranged between the lower ends of the first hydro-pneumatic spring suspension cylinder bracket assembly (3) and the second hydro-pneumatic spring suspension cylinder bracket assembly (18) on two sides of the frame (17), and a second limiting assembly for limiting left and right postures of the first shaft (1) and the second shaft (7) is arranged between the transverse pushing fixed beam assembly (14) and the first shaft (1) and the second hydro-pneumatic spring suspension cylinder bracket assembly (18);
and steering assemblies for steering the hubs are arranged on the first shaft (1) and the second shaft (7).
2. The front double-bridge hydro-pneumatic spring suspension structure according to claim 1, wherein the buffer component comprises hydro-pneumatic spring suspension cylinders (2), the hydro-pneumatic spring suspension cylinders (2) are respectively arranged between a first hydro-pneumatic spring suspension cylinder support assembly (3) and a shaft (1) and a second hydro-pneumatic spring suspension cylinder support assembly (18) and two shafts (7), the upper ends of the hydro-pneumatic spring suspension cylinders (2) are rotationally connected through suspension cylinder upper pin shafts (12), the lower ends of the hydro-pneumatic spring suspension cylinders (2) are rotationally connected through suspension cylinder lower pin shafts (13), and the longitudinal thrust rod support assembly (6) is further provided with an energy storage component for balancing the hydro-pneumatic spring suspension cylinders (2).
3. A front double-bridge hydro-pneumatic spring suspension structure according to claim 2, wherein the energy storage assembly comprises an energy accumulator (5), the energy accumulator (5) is fixedly connected to a position in the middle of the upper end of the longitudinal thrust rod support assembly (6), and the energy accumulator (5) is communicated with the hydro-pneumatic spring suspension cylinder (2) through an energy accumulator oil pipe (4).
4. The front double-axle hydro-pneumatic spring suspension structure according to claim 1, wherein the first limiting component comprises a longitudinal force rod assembly (9), the longitudinal force rod assembly (9) is arranged at two sides of the lower end of the longitudinal thrust rod support assembly (6), the longitudinal force rod assembly (9) is rotationally connected with the longitudinal thrust rod support assembly (6) by adopting a longitudinal pushing fixed pin shaft (11), and one end, far away from the longitudinal thrust rod support assembly (6), of the longitudinal force rod assembly (9) is connected with a first shaft (1) and a second shaft (7) respectively.
5. The front double-axle hydro-pneumatic spring suspension structure according to claim 1, wherein the second limiting component comprises a transverse pushing fixed pin shaft (15), the transverse pushing fixed pin shaft (15) is installed at a position on one side of a transverse pushing fixed beam assembly (14), a transverse thrust rod assembly (16) is rotatably connected to the transverse pushing fixed pin shaft (15), and one end, far away from the transverse pushing fixed beam assembly (14), of the transverse thrust rod assembly (16) is rotatably connected with a shaft (1) and the first hydro-pneumatic spring suspension cylinder support assembly (3) respectively.
6. A front double axle hydro-pneumatic spring suspension structure as claimed in claim 1 wherein the steering assembly comprises a steering cross bar assembly (8), the steering cross bar assembly (8) being mounted between steering members of hubs at both ends of the primary and secondary axles (1, 7) for synchronizing steering of the hubs at both ends of the primary and secondary axles (1, 7).
7. The front double-axle hydro-pneumatic spring suspension structure according to claim 1, wherein a steering cylinder assembly for driving a wheel hub to steer is arranged on each of the axle (1) and the first hydro-pneumatic spring suspension cylinder support assembly (3).
8. The front double-axle hydro-pneumatic spring suspension structure according to claim 1, wherein the steering straight pull rod assembly (10) is arranged between the steering straight pull rod assembly (10) and the two shafts (7) and one shaft (1), one end of the steering straight pull rod assembly (10) is connected with a steering arm of the shaft (1), and the other end of the steering straight pull rod assembly (10) is connected with a steering arm of the hydro-pneumatic spring suspension cylinder (2).
9. The front double-axle hydro-pneumatic spring suspension structure according to claim 8, wherein two ends of the steering straight pull rod assembly (10) are connected to the lower ends of steering knuckle arms of a first axle (1) and a second axle (7) through ball heads to form a steering trapezoid.
10. A front double-bridge hydro-pneumatic spring suspension structure according to claim 3, characterized in that the accumulator oil pipe (4) is a flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311407025.9A CN117301779B (en) | 2023-10-27 | 2023-10-27 | A front dual-axle air spring suspension structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311407025.9A CN117301779B (en) | 2023-10-27 | 2023-10-27 | A front dual-axle air spring suspension structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117301779A true CN117301779A (en) | 2023-12-29 |
| CN117301779B CN117301779B (en) | 2025-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311407025.9A Active CN117301779B (en) | 2023-10-27 | 2023-10-27 | A front dual-axle air spring suspension structure |
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| Country | Link |
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| CN (1) | CN117301779B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203511762U (en) * | 2013-10-30 | 2014-04-02 | 湖北航天技术研究院特种车辆技术中心 | Steering mechanism with double front axles |
| US8695998B1 (en) * | 2013-02-20 | 2014-04-15 | Saf-Holland, Inc. | Axle lift assembly |
| CN207683255U (en) * | 2017-12-12 | 2018-08-03 | 惠州比亚迪电池有限公司 | Gas suspension mechanism and vehicle |
| CN221137478U (en) * | 2023-10-27 | 2024-06-14 | 驰田汽车股份有限公司 | Front double-bridge hydro-pneumatic spring suspension structure |
-
2023
- 2023-10-27 CN CN202311407025.9A patent/CN117301779B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8695998B1 (en) * | 2013-02-20 | 2014-04-15 | Saf-Holland, Inc. | Axle lift assembly |
| CN203511762U (en) * | 2013-10-30 | 2014-04-02 | 湖北航天技术研究院特种车辆技术中心 | Steering mechanism with double front axles |
| CN207683255U (en) * | 2017-12-12 | 2018-08-03 | 惠州比亚迪电池有限公司 | Gas suspension mechanism and vehicle |
| CN221137478U (en) * | 2023-10-27 | 2024-06-14 | 驰田汽车股份有限公司 | Front double-bridge hydro-pneumatic spring suspension structure |
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| CN117301779B (en) | 2025-12-05 |
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