CN219096805U - Steering structure suitable for off-road vehicle - Google Patents
Steering structure suitable for off-road vehicle Download PDFInfo
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- CN219096805U CN219096805U CN202222663799.5U CN202222663799U CN219096805U CN 219096805 U CN219096805 U CN 219096805U CN 202222663799 U CN202222663799 U CN 202222663799U CN 219096805 U CN219096805 U CN 219096805U
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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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model provides a steering structure suitable for an off-road vehicle, which comprises the following components: steering wheel and support guard shield assembly, steering transmission device, electric control hydraulic power steering gear, double-cross arm steering implementation structure; the steering transmission device comprises a steering wheel and bracket shield assembly, a steering transmission device, an electric control hydraulic power steering device, a steering control device and a control device, wherein the steering operation of the steering wheel and bracket shield assembly represents a steering instruction of the off-road vehicle, one end of the steering transmission device is connected with the steering wheel and bracket shield assembly and is used for transmitting the steering instruction, and the electric control hydraulic power steering device adjusts the steering instruction transmitted by the steering transmission device based on vehicle operation parameters of the off-road vehicle; the double-cross arm steering implementation structure is connected with an input shaft of the electric control hydraulic power-assisted steering device, and responds to a steering instruction output by the electric control hydraulic power-assisted steering device to realize the steering of the off-road vehicle. The utility model is suitable for the cross-country vehicle adopting the double-cross arm independent suspension by designing the power steering system comprising the double-cross arm steering implementation structure.
Description
Technical Field
The utility model relates to the technical field of automobile power steering systems, in particular to a steering structure suitable for an off-road vehicle.
Background
At present, a hydraulic power-assisted steering system is commonly adopted in domestic commercial vehicles, an engine-driven power steering pump is adopted as a hydraulic source to assist the steering system, the structure is suitable for an integral steering axle of a road running vehicle, but the structure cannot meet the requirements of a double-wishbone independent suspension and a disconnected driving axle structure which are commonly used in off-road vehicles, and cannot receive an external vehicle running curvature control request, unmanned off-road driving cannot be realized, so that the improvement of a power steering mechanism is very necessary.
Disclosure of Invention
The utility model aims at solving the technical problems of effectively receiving and processing an external vehicle running curvature control request aiming at a double-cross arm type independent suspension and a disconnected type drive axle structure which are commonly used for off-road vehicles so as to realize unmanned off-road driving. In view of this, the present utility model provides a steering structure suitable for an off-road vehicle.
The technical scheme adopted by the utility model is that the steering structure suitable for the off-road vehicle comprises:
a steering wheel and bracket shield assembly, which is used for representing a steering instruction of the off-road vehicle by rotating operation of the steering wheel and bracket shield assembly;
one end of the steering transmission device is connected with the steering wheel and the bracket shield assembly and is used for transmitting the steering instruction;
the electric control hydraulic power-assisted steering device is used for adjusting the steering instruction transmitted by the steering transmission device based on the vehicle operation parameters of the off-road vehicle;
the double-cross arm steering implementation structure is connected with an input shaft of the electric control hydraulic power-assisted steering device and responds to the steering command output by the electric control hydraulic power-assisted steering device to realize the steering of the off-road vehicle.
In one embodiment, the steering gear includes: the steering device comprises a first steering transmission shaft, a lower steering shaft, a second steering transmission shaft, a first angle transmission box, a third steering transmission shaft, a second angle transmission box and a fourth steering transmission shaft;
the upper end of the first steering transmission shaft is connected with the steering wheel and bracket shield assembly, and the lower end of the first steering transmission shaft is connected with the lower steering shaft;
the front end and the rear end of the second steering transmission shaft are respectively connected with the lower steering shaft and the second angle transmission box,
the second angle transmission case is connected to the frame through a left steering bracket transition bracket;
the front end and the rear end of the third steering transmission shaft are respectively connected with the output end of the second angle transmission box and the input end of the first angle transmission box;
the output end of the first angle transmission box is connected with the input end of the electric control hydraulic power steering gear through the fourth steering transmission shaft.
In one embodiment, the double wishbone steering implementation includes: a steering vertical shaft, a steering tie rod, a steering swing arm, a steering side tie rod and a knuckle arm;
the steering swing arm is of a bilateral symmetry structure taking the steering tie rod as a center;
the steering swing arm is connected to an output shaft of the electric control hydraulic power steering device and the steering vertical shaft through a spline respectively;
the middle hole of the steering swing arm is connected with the left ball head and the right ball head of the steering transverse pull rod, and the end hole of the steering swing arm is connected with the steering side pull rod;
the other end of the steering side pull rod is connected with the knuckle arm.
In one embodiment, the steering structure adapted for use in an off-road vehicle further comprises: steering gear bracket, steering bracket connecting plate, steering bracket transition connecting plate;
wherein the electrically controlled hydraulic power steering gear is fixed on the steering gear bracket;
the steering bracket is connected to the steering bracket transition connecting plate through the steering bracket connecting plate and is further connected to the frame;
the steering gear bracket is used as a mounting platform of the steering vertical shaft at the same time;
the steering bracket connecting plate and the second angle transmission case are connected through the steering bracket transition connecting plate;
the diverter bracket and the first angle gearbox are connected through the diverter bracket connecting plate.
In one embodiment, the steering structure adapted for use in an off-road vehicle further comprises: steering oil tank, power steering pump;
the steering oil tank is fixed on the off-road vehicle and is used for providing hydraulic oil for the electric control hydraulic power-assisted steering gear;
the power steering pump is connected with the steering transmission device and is used for providing power for the steering transmission device.
Another aspect of the utility model also provides an off-road vehicle comprising a steering arrangement as defined in any one of the preceding claims adapted for use in an off-road vehicle.
By adopting the technical scheme, the utility model has at least the following advantages:
the power steering system with the double-cross arm steering implementation structure is designed to be suitable for the cross-country vehicle adopting the double-cross arm independent suspension, and the electric control hydraulic power steering machine is equipped to receive and execute the steering curvature instruction issued by the whole vehicle controller, so that the vehicle steering function in the unmanned mode is realized.
Drawings
FIG. 1 is a schematic view of a steering architecture suitable for use with an off-road vehicle in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic view of a partial structure of a steering structure suitable for use in an off-road vehicle in accordance with an embodiment of the present utility model;
FIG. 3 is a schematic view of a diverter bracket transition bracket configuration in accordance with an embodiment of the present utility model;
fig. 4 is a schematic view of a bracket connection bracket according to an embodiment of the present utility model.
Description of the drawings:
1-steering wheel and support shield assembly, 2-first steering transmission shaft, 3-lower steering shaft, 4-steering oil tank, 5-second steering transmission shaft, 6-first angle transmission box, 7-third steering transmission shaft, 6-second angle transmission box, 9-fourth steering transmission shaft, 10-vertical steering shaft, 11-electric control hydraulic power steering, 12-steering tie rod, 13-steering swing arm, 14-steering bracket, 15-steering side pull rod, 16-steering bracket connecting plate, 17-steering bracket transition connecting plate, 18-steering knuckle arm and 19-power steering pump.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description of the present utility model is given with reference to the accompanying drawings and preferred embodiments.
A first embodiment of the present utility model, a steering structure for an off-road vehicle, as shown in fig. 1, includes: steering wheel and support guard assembly 1, steering transmission, electric control hydraulic power steering 11, double-cross arm steering implementation structure.
The steering wheel and support shield assembly 1 characterizes steering instructions of the off-road vehicle on the rotating operation of the steering wheel and support shield assembly 1;
one end of the steering transmission device is connected with the steering wheel and bracket shield assembly 1 and is used for transmitting steering instructions;
an electrically controlled hydraulic power steering 11 for adjusting the steering command transmitted from the steering transmission device based on the vehicle operation parameters of the off-road vehicle;
the double-cross arm steering implementation structure is connected with an input shaft of the electric control hydraulic power-assisted steering device 11, and responds to a steering command output by the electric control hydraulic power-assisted steering device 11 to realize the steering of the off-road vehicle.
In this embodiment, the steering transmission device may specifically include: a first steering transmission shaft 2, a lower steering shaft 3, a second steering transmission shaft 5, a first angle transmission box 6, a third steering transmission shaft 7, a second angle transmission box 8 and a fourth steering transmission shaft 9.
Further, the upper end of the first steering transmission shaft 2 is connected with the steering wheel and support shield assembly 1, the lower end is connected with the lower steering shaft 3, the front end and the rear end of the second steering transmission shaft 5 are respectively connected with the lower steering shaft 3 and the second angle driving box 8, the second angle driving box 8 is connected on the frame through a left steering bracket transition support, the front end and the rear end of the third steering transmission shaft 7 are respectively connected with the output end of the second angle driving box 8 and the input end of the first angle driving box 6, and the output end of the first angle driving box 6 is connected with the input end of the electric control hydraulic power steering device 11 through the fourth steering transmission shaft 9.
In this embodiment, the double-wishbone steering implementation structure may specifically include: steering vertical shaft 10, tie rod 12, steering swing arm 13, steering side tie rod 15, knuckle arm 18.
Specifically, as shown in fig. 1, the steering arm 13, the tie rod 15, and the knuckle arm 18 have a laterally symmetrical structure about the tie rod 12.
Further, the steering swing arm 13 is respectively connected to an output shaft of the electric control hydraulic power steering device 11 and the steering vertical shaft 10 through splines, a middle hole of the steering swing arm 13 is connected with a left ball head and a right ball head of the steering tie rod 12, an end hole of the steering swing arm 13 is connected with the steering side tie rod 15, and the other end of the steering side tie rod 15 is connected with the knuckle arm 18.
In this embodiment, the steering structure suitable for the off-road vehicle further includes: diverter bracket 14, diverter bracket attachment plate 16, diverter bracket transition attachment plate 17.
Specifically, the electrically controlled hydraulic power steering 11 is fixed to a steering bracket 14, which is connected to a steering bracket 14 transition connection plate, and thus to the vehicle frame, via a steering bracket 14 connection plate.
Further, the diverter bracket 14 simultaneously serves as a mounting platform for the diverter vertical shaft 10, the diverter bracket attachment plate 16 and the second angle drive housing 8 being connected by means of a diverter bracket transition attachment plate 17, the diverter bracket 14 and the first angle drive housing 6 being connected by means of the diverter bracket attachment plate 16.
In this embodiment, the steering structure suitable for the off-road vehicle further includes: steering oil tank 4, power steering pump 19;
optionally, a steering tank 4 is fixed on the off-road vehicle for supplying hydraulic oil to the electrically controlled hydraulic power steering 11; a power steering pump 19 is connected to the steering gear for providing power to the steering gear.
Compared with the prior art, the steering structure suitable for the off-road vehicle is suitable for the off-road vehicle adopting the double-cross arm independent suspension through designing the power steering system comprising the double-cross arm steering implementation structure, and is provided with the electric control hydraulic power steering machine, so that the steering structure can receive and execute the steering curvature instruction issued by the whole vehicle controller, and the vehicle steering function in the unmanned mode is realized.
A second embodiment of the present utility model, which is an application example of the present utility model described above with reference to fig. 1 to 4, is based on the above embodiment.
Referring to fig. 1 and 2, a steering system structure with electro-hydraulic power steering function suitable for an unmanned off-road vehicle comprises a steering wheel and bracket shield assembly 1, a first steering rotating shaft 2, a lower steering shaft 3, a steering oil tank 4, a second steering transmission shaft 5, a first angle transmission box 6, a third steering transmission shaft 7, a second angle transmission box 8, a fourth steering transmission shaft 9, a steering vertical shaft 10, an electric control hydraulic power steering 11, a steering tie rod 12, steering swing arms 13 (left and right 1 piece), a steering bracket 14, a steering tie rod 15 (left and right 1 piece), a steering bracket connecting plate 16 (left and right symmetrical piece), a steering bracket transition connecting plate 17 (left and right symmetrical piece), a steering knuckle arm 18 (left and right symmetrical piece) and a power steering pump 19.
In this embodiment, the upper end of the first steering transmission shaft 2 is connected to the steering wheel and bracket shield assembly 1, and the lower end is connected to the lower steering shaft 3. The lower steering shaft 3 has both a steering transmission function and a sealing function when the steering shaft passes through the front wall plate of the cockpit.
The front end and the rear end of the second steering transmission shaft 5 are respectively connected with the lower steering shaft 3 and the second angle transmission box 8, and the second angle transmission box 8 is connected to the frame through a left steering bracket transition bracket.
The front end and the rear end of the third steering transmission shaft 7 are respectively connected with the output end of the second angle transmission box 8 and the input end of the first angle transmission box 6. The output end of the first angle gearbox 6 is connected with the input end of an electric control hydraulic power steering gear 11 through a fourth steering transmission shaft 9.
The electrically controlled hydraulic power steering 11 is fixed to a steering bracket 14. The steering bracket 14 is connected to a steering bracket transition plate 17, and thus to the vehicle frame, by a steering bracket connection plate 16. The diverter bracket 14 also serves as a mounting platform for the diverter vertical shaft 10.
In the embodiment, the left and right steering swing arms 13 are respectively connected to the output shaft of the electric control hydraulic power steering device 11 and the steering vertical shaft 10 through splines, meanwhile, the middle holes of the left and right steering swing arms are connected with the left and right ball heads of the steering tie rod 12, and the end holes of the steering swing arms 13 are connected with the left and right steering side tie rods 15. The steering side tie rods 15 are connected to the left and right knuckle arms, respectively.
In this embodiment, a power steering pump 19 is coupled to the engine to provide a source of power to the system. The steering oil tank 4 is fixed on the vehicle body and provides hydraulic oil for a hydraulic system. The electric control hydraulic power-assisted steering device 11 timely adjusts the power-assisted degree of the motor by acquiring the input torque and angle of the steering wheel and an electric control system. The turning bracket transition connecting plate 17 has the function of connecting the turning bracket connecting plate 16 and the second angle drive box 8 at the same time. The steering bracket connecting plate 16 has the function of connecting the steering bracket 14, the first angle drive box 6 and the whole vehicle nameplate.
In the embodiment, the working principle of the system is that a driver inputs an angle and torque input by the rear driver to the system through a series of steering transmission devices to an electric control hydraulic power steering gear 11 through a steering wheel and bracket shield assembly 1 in a rotating mode; the controller of the electric control hydraulic power-assisted steering device 11 combines the input of a driver and the running parameters of a vehicle, adjusts the output torque of the power-assisted motor and changes the power-assisted magnitude; the output shaft of the electric control hydraulic power steering gear 11 drives the steering swing arm 13 to swing left and right, and then drives the steering tie rod 12 and the left steering swing arm, the steering swing arms 13 at two sides respectively drive the steering tie rods 15 at two sides, and finally drive the steering knuckle arms 18 at the left side and the right side to swing, so that the steering function of the vehicle is realized.
A third embodiment of the utility model is an off-road vehicle comprising a steering arrangement as described in the first or second embodiment for an off-road vehicle.
In summary, the power steering system comprising the double-cross arm steering implementation structure is designed to be suitable for the off-road vehicle adopting the double-cross arm independent suspension, and the electric control hydraulic power steering machine is equipped to receive and execute the steering curvature instruction issued by the vehicle controller, so that the vehicle steering function in the unmanned mode is realized.
While the utility model has been described in connection with specific embodiments thereof, it is to be understood that these drawings are included in the spirit and scope of the utility model, it is not to be limited thereto.
Claims (5)
1. A steering structure for an off-road vehicle, comprising:
a steering wheel and bracket shield assembly, which is used for representing a steering instruction of the off-road vehicle by rotating operation of the steering wheel and bracket shield assembly;
one end of the steering transmission device is connected with the steering wheel and the bracket shield assembly and is used for transmitting the steering instruction;
the electric control hydraulic power-assisted steering device is used for adjusting the steering instruction transmitted by the steering transmission device based on the vehicle operation parameters of the off-road vehicle;
the double-cross arm steering implementation structure is connected with an input shaft of the electric control hydraulic power-assisted steering device and responds to the steering command output by the electric control hydraulic power-assisted steering device to realize the steering of the off-road vehicle.
2. The steering structure for an off-road vehicle according to claim 1, wherein,
the steering transmission device includes: the steering device comprises a first steering transmission shaft, a lower steering shaft, a second steering transmission shaft, a first angle transmission box, a third steering transmission shaft, a second angle transmission box and a fourth steering transmission shaft;
the upper end of the first steering transmission shaft is connected with the steering wheel and bracket shield assembly, and the lower end of the first steering transmission shaft is connected with the lower steering shaft;
the front end and the rear end of the second steering transmission shaft are respectively connected with the lower steering shaft and the second angle transmission box,
the second angle transmission case is connected to the frame through a left steering bracket transition bracket;
the front end and the rear end of the third steering transmission shaft are respectively connected with the output end of the second angle transmission box and the input end of the first angle transmission box;
the output end of the first angle transmission box is connected with the input end of the electric control hydraulic power steering gear through the fourth steering transmission shaft.
3. The steering structure for an off-road vehicle according to claim 2, wherein,
the double-wishbone steering implementation structure comprises: a steering vertical shaft, a steering tie rod, a steering swing arm, a steering side tie rod and a knuckle arm;
the steering swing arm is of a bilateral symmetry structure taking the steering tie rod as a center;
the steering swing arm is connected to an output shaft of the electric control hydraulic power steering device and the steering vertical shaft through a spline respectively;
the middle hole of the steering swing arm is connected with the left ball head and the right ball head of the steering transverse pull rod, and the end hole of the steering swing arm is connected with the steering side pull rod;
the other end of the steering side pull rod is connected with the knuckle arm.
4. The steering structure for an off-road vehicle according to claim 3, further comprising: steering gear bracket, steering bracket connecting plate, steering bracket transition connecting plate;
wherein the electrically controlled hydraulic power steering gear is fixed on the steering gear bracket;
the steering bracket is connected to the steering bracket transition connecting plate through the steering bracket connecting plate and is further connected to the frame;
the steering gear bracket is used as a mounting platform of the steering vertical shaft at the same time;
the steering bracket connecting plate and the second angle transmission case are connected through the steering bracket transition connecting plate;
the diverter bracket and the first angle gearbox are connected through the diverter bracket connecting plate.
5. The steering structure for an off-road vehicle according to claim 1, further comprising: steering oil tank, power steering pump;
the steering oil tank is fixed on the off-road vehicle and is used for providing hydraulic oil for the electric control hydraulic power-assisted steering gear;
the power steering pump is connected with the steering transmission device and is used for providing power for the steering transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663799.5U CN219096805U (en) | 2022-10-10 | 2022-10-10 | Steering structure suitable for off-road vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663799.5U CN219096805U (en) | 2022-10-10 | 2022-10-10 | Steering structure suitable for off-road vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219096805U true CN219096805U (en) | 2023-05-30 |
Family
ID=86430322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222663799.5U Active CN219096805U (en) | 2022-10-10 | 2022-10-10 | Steering structure suitable for off-road vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219096805U (en) |
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2022
- 2022-10-10 CN CN202222663799.5U patent/CN219096805U/en active Active
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