CN219651257U - Hydraulic steering device - Google Patents
Hydraulic steering device Download PDFInfo
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- CN219651257U CN219651257U CN202320487298.8U CN202320487298U CN219651257U CN 219651257 U CN219651257 U CN 219651257U CN 202320487298 U CN202320487298 U CN 202320487298U CN 219651257 U CN219651257 U CN 219651257U
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- steering
- hydraulic
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- port
- steering device
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- 239000003921 oil Substances 0.000 claims abstract description 53
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 25
- 238000010586 diagram Methods 0.000 description 3
- 241001417527 Pempheridae Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The utility model discloses a hydraulic steering device, which comprises: the steering system comprises a steering module and an oil tank, wherein the oil tank is connected with the steering module, the steering module is used for controlling a target vehicle to steer, the oil tank is used for supplying hydraulic oil to the steering module, and the steering module comprises: the hydraulic steering device is manually rotated when the situation of manual intervention is met, hydraulic oil in the oil tank enters the hydraulic steering device, the valve in the hydraulic steering valve group enters a closed state, so that automatic driving of the hydraulic steering device stops working, the steering device enters a manual connection state, safety of the hydraulic steering device is improved, the problem that the automatic driving of the manual intervention hydraulic steering device cannot control the steering device when the situation of emergency is met is effectively avoided, and potential safety hazards of the steering device are reduced.
Description
Technical Field
The utility model relates to the field of mechanical control, in particular to a hydraulic steering device.
Background
At present, two types of hydraulic steering automatic driving sweeping machine drive-by-wire steering systems exist in the industry, one type is that a motor drives a steering wheel to rotate so as to simulate manual operation steering; the other is that the steering is independently controlled by connecting the hydraulic proportional valve group with the steering gear in parallel. The two types of the automatic steering system have no manual priority function, namely when the automatic steering system works and an emergency is encountered, the direction control of the sweeper cannot be immediately taken over by the person due to the fact that the automatic steering system has no manual priority function, and certain potential safety hazards exist.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present utility model and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The utility model mainly aims to provide a hydraulic steering device, which aims to solve the technical problem that the prior art cannot timely and effectively intervene in an automatic steering system, so that the automatic steering system has potential safety hazards.
In order to achieve the above object, the present utility model provides a hydraulic steering device,
optionally, the hydraulic steering device includes: the steering system comprises a steering module and an oil tank, wherein the oil tank is connected with the steering module, the steering module is used for controlling a target vehicle to steer, and the oil tank is used for supplying hydraulic oil to the steering module;
the steering module comprises: the hydraulic steering device comprises a steering oil cylinder, a hydraulic steering device and a hydraulic steering valve group, wherein the steering oil cylinder is connected with the hydraulic steering device through the hydraulic steering valve group.
Optionally, the first port and the second port of the hydraulic steering gear are respectively connected with the steering cylinder, the third port is connected with the steering valve group, and the fourth port is connected with the oil tank.
Optionally, the hydraulic steering device further includes: a diverter valve;
the diverter valve is connected between the steering module and the oil tank and is used for providing hydraulic oil in the oil tank to the steering module.
Optionally, the hydraulic steering valve group includes: a logic valve and a first hydraulic lock;
the left valve of the logic valve is connected with the first port of the hydraulic steering gear, and the right valve of the logic valve is connected with the fourth port of the hydraulic steering gear;
one side of the first hydraulic lock is connected with the logic valve, and the other side of the first hydraulic lock is connected with the steering oil cylinder.
Optionally, the steering valve group further includes: a second hydraulic lock;
the second hydraulic lock is connected between the steering cylinder and the first hydraulic lock, and the second hydraulic lock is also connected with a first port and a second port of the hydraulic steering gear.
Optionally, the steering valve group further includes: an electromagnetic reversing valve;
the electromagnetic directional valve is connected between the logic valve and the first hydraulic lock.
Optionally, the steering valve group further includes: an electromagnetic stop valve;
the electromagnetic stop valve is respectively connected with the first port and the third port of the hydraulic steering gear, and the electromagnetic stop valve is also connected with the electromagnetic reversing valve.
Optionally, the steering valve group further includes: a proportional valve;
the proportional valve is connected between the logic valve and the electromagnetic directional valve.
Optionally, the steering valve group further includes: a shuttle valve;
the shuttle valve is connected between the hydraulic steering gear and the second hydraulic lock, the shuttle valve is respectively connected with a first port and a second port of the hydraulic steering gear, and the shuttle valve is also respectively connected with the logic valve and the electromagnetic stop valve.
Optionally, the diverter valve comprises a one-way stable diverter valve.
The hydraulic steering device of the present utility model includes: the steering system comprises a steering module and an oil tank, wherein the oil tank is connected with the steering module, the steering module is used for controlling a target vehicle to steer, the oil tank is used for supplying hydraulic oil to the steering module, and the steering module comprises: the hydraulic steering device is manually rotated when the situation of manual intervention is met, hydraulic oil in the oil tank enters the hydraulic steering device, the valve in the hydraulic steering valve group enters a closed state, so that automatic driving of the hydraulic steering device stops working, the steering device enters a manual connection state, safety of the hydraulic steering device is improved, the problem that the automatic driving of the manual intervention hydraulic steering device cannot control the steering device when the situation of emergency is met is effectively avoided, and potential safety hazards of the steering device are reduced.
Drawings
FIG. 1 is a schematic view of a first embodiment of a hydraulic steering device of the present utility model;
FIG. 2 is a schematic diagram showing the connection of the components in an embodiment of the hydraulic steering device of the present utility model.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Flow dividing valve | 2 | Logic valve |
| 3 | Proportional valve | 4 | Electromagnetic reversing valve |
| 5 | First hydraulic lock | 6 | Electromagnetic stop valve |
| 7 | Second hydraulic lock | 8 | Shuttle valve |
| 9 | Hydraulic steering gear | 10 | Steering cylinder |
| 11 | Oil tank | 12 | Hydraulic steering valve group |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Because the existing automatic steering system cannot be effectively inserted into the automatic steering system in time, the problem that potential safety hazards exist in the automatic steering system exists.
In view of the above, the present utility model provides a hydraulic steering device, wherein fig. 1 is a schematic diagram of the hydraulic steering device provided by the present utility model.
Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a first embodiment of a hydraulic steering apparatus of the present utility model, the hydraulic steering apparatus including:
the steering system comprises a steering module and an oil tank, wherein the oil tank is connected with the steering module, the steering module is used for controlling a target vehicle to steer, and the oil tank is used for supplying hydraulic oil to the steering module;
the steering module comprises: the hydraulic steering device comprises a steering oil cylinder, a hydraulic steering device and a hydraulic steering valve group, wherein the steering oil cylinder is connected with the hydraulic steering device through the hydraulic steering valve group.
Further, referring to fig. 2, fig. 2 is a schematic connection diagram of each component in the present embodiment, a first port and a second port of the hydraulic steering gear are respectively connected with the steering cylinder, a third port is connected with the steering valve group, and a fourth port is connected with the oil tank.
Further, the hydraulic steering device further includes: a diverter valve;
the diverter valve is connected between the steering module and the oil tank and is used for providing hydraulic oil in the oil tank to the steering module.
Further, the hydraulic steering valve group includes: a logic valve and a first hydraulic lock;
the left valve of the logic valve is connected with the first port of the hydraulic steering gear, and the right valve of the logic valve is connected with the fourth port of the hydraulic steering gear;
one side of the first hydraulic lock is connected with the logic valve, and the other side of the first hydraulic lock is connected with the steering oil cylinder.
Further, the steering valve group further includes: a second hydraulic lock;
the second hydraulic lock is connected between the steering cylinder and the first hydraulic lock, and the second hydraulic lock is also connected with a first port and a second port of the hydraulic steering gear.
Further, the steering valve group further includes: an electromagnetic reversing valve;
the electromagnetic directional valve is connected between the logic valve and the first hydraulic lock.
Further, the steering valve group further includes: an electromagnetic stop valve;
the electromagnetic stop valve is respectively connected with the first port and the third port of the hydraulic steering gear, and the electromagnetic stop valve is also connected with the electromagnetic reversing valve.
Further, the steering valve group further includes: a proportional valve;
the proportional valve is connected between the logic valve and the electromagnetic directional valve.
Further, the steering valve group further includes: a shuttle valve;
the shuttle valve is connected between the hydraulic steering gear and the second hydraulic lock, the shuttle valve is respectively connected with a first port and a second port of the hydraulic steering gear, and the shuttle valve is also respectively connected with the logic valve and the electromagnetic stop valve.
Further, the diverter valve comprises a one-way stable diverter valve.
It should be noted that, this embodiment can be applied to hydraulic steering automatic driving sweeper drive-by-wire steering system, the flow divider supplies the hydraulic oil temperature flow in the oil tank to steering module through the A mouth, hydraulic oil gets into the logic valve, when the vehicle is in the autopilot state, when hydraulic steering ware is inoperative this moment, the electromagnetic stop valve gets the electricity earlier, pressure point P1 pressure risees, when pressure is higher than 11Bar, logic valve right side begins to work, hydraulic oil gets into the proportional valve, the solenoid valve gets the electricity 3 seconds earlier and then cuts off the power supply.
It should be understood that when the vehicle maintains the existing travel angle, the electromagnetic directional valve is in the neutral position and hydraulic oil is returned directly to the tank; when the vehicle needs to turn or change the current travelling angle, the electromagnetic directional valve works, meanwhile, the proportional valve adjusts the flow of hydraulic oil passing through the proportional valve through different currents output by the corresponding controller so as to obtain different steering speeds.
It should be noted that, the first port of the hydraulic steering gear is the port a in fig. 2, the second port is the port B, the third port is the port P, and the fourth port is the port T, wherein the port P is used for connecting hydraulic oil; the port A and the port B are used for connecting a steering cylinder, and discharging quantitative hydraulic oil according to the rotation angle of the steering wheel; the T port is used for connecting an oil return tank, and the steering oil cylinder is used for pushing steering wheels to deflect so as to realize vehicle steering.
In fig. 2, the port P of the diverter valve is connected with hydraulic oil from an oil pump, the port T is connected with a hydraulic oil tank, and the port B is connected with other working devices of the vehicle. The flow dividing valve has the function of dividing the hydraulic oil from the oil pump into two parts, namely an A port and a B port, and can preferentially ensure that the flow of the A port is preferential and stable, and redundant oil is input into the B port again. In fig. 2, P1, P2, and T2 are oil port marks, respectively, and P1, P2, and T2 may be external oil ports.
In the concrete implementation, when an emergency situation needs to be manually interposed, a steering gear installed on a hydraulic steering gear is manually pulled, the steering gear drives the hydraulic steering gear to rotate, hydraulic oil enters a first port or a second port of the hydraulic steering gear, the hydraulic oil of the first port or the second port enters a control oil way of a logic valve through a shuttle valve, the hydraulic oil pressure at two ends of the logic valve is equal, a valve core in the logic valve is in a closing state under the left and right of spring force, automatic driving stops working, a steering system enters a manual connection state, the purpose of manual priority is achieved, the system safety is greatly improved, meanwhile, a first hydraulic lock and a second hydraulic lock can effectively separate the oil ways of the steering gear and a steering valve group, and the purpose of no mutual influence is achieved.
The electromagnetic stop valve is powered on to enable the left control oil way of the logic valve to release pressure so as to enable the valve core of the logic valve to move, enable the right position of the logic valve to work and start automatic driving; the electromagnetic stop valve has the following power-off function: when the emergency needs to be taken over manually, the steering gear is manually rotated to drive the hydraulic steering gear to rotate, at the moment, the first port or the second port of the hydraulic steering gear has pressure, the pressure is transmitted to the left control oil way of the logic valve through the shuttle valve, the left position of the logic valve works, and the manual driving mode is entered at the moment, so that the manual driving is prioritized. The function of outage is to block the pressure relief of the oil return box of the control oil way, so that the functions are realized.
The hydraulic steering device in this embodiment includes: the steering system comprises a steering module and an oil tank, wherein the oil tank is connected with the steering module, the steering module is used for controlling a target vehicle to steer, the oil tank is used for supplying hydraulic oil to the steering module, and the steering module comprises: the hydraulic steering device is manually rotated when the situation of manual intervention is met, hydraulic oil in the oil tank enters the hydraulic steering device, the valve in the hydraulic steering valve group enters a closed state, so that automatic driving of the hydraulic steering device stops working, the steering device enters a manual connection state, safety of the hydraulic steering device is improved, the problem that the automatic driving of the manual intervention hydraulic steering device cannot control the steering device when the situation of emergency is met is effectively avoided, and potential safety hazards of the steering device are reduced.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. A hydraulic steering device, characterized in that it comprises: the steering system comprises a steering module and an oil tank, wherein the oil tank is connected with the steering module, the steering module is used for controlling a target vehicle to steer, and the oil tank is used for supplying hydraulic oil to the steering module;
the steering module comprises: the hydraulic steering device comprises a steering oil cylinder, a hydraulic steering device and a hydraulic steering valve group, wherein the steering oil cylinder is connected with the hydraulic steering device through the hydraulic steering valve group.
2. The hydraulic steering device of claim 1, wherein the first and second ports of the hydraulic steering are connected to the steering cylinder, respectively, a third port is connected to the steering valve group, and a fourth port is connected to the tank.
3. The hydraulic steering device according to claim 2, characterized in that the hydraulic steering device further comprises: a diverter valve;
the diverter valve is connected between the steering module and the oil tank and is used for providing hydraulic oil in the oil tank to the steering module.
4. The hydraulic steering device of claim 3, wherein the hydraulic steering valve group includes: a logic valve and a first hydraulic lock;
the left valve of the logic valve is connected with the first port of the hydraulic steering gear, and the right valve of the logic valve is connected with the fourth port of the hydraulic steering gear;
one side of the first hydraulic lock is connected with the logic valve, and the other side of the first hydraulic lock is connected with the steering oil cylinder.
5. The hydraulic steering device of claim 4, wherein the steering valve block further comprises: a second hydraulic lock;
the second hydraulic lock is connected between the steering cylinder and the first hydraulic lock, and the second hydraulic lock is also connected with a first port and a second port of the hydraulic steering gear.
6. The hydraulic steering device of claim 5, wherein the steering valve block further comprises: an electromagnetic reversing valve;
the electromagnetic directional valve is connected between the logic valve and the first hydraulic lock.
7. The hydraulic steering device of claim 6, wherein the steering valve block further comprises: an electromagnetic stop valve;
the electromagnetic stop valve is respectively connected with the first port and the third port of the hydraulic steering gear, and the electromagnetic stop valve is also connected with the electromagnetic reversing valve.
8. The hydraulic steering device of claim 7, wherein the steering valve block further comprises: a proportional valve;
the proportional valve is connected between the logic valve and the electromagnetic directional valve.
9. The hydraulic steering device of claim 8, wherein the steering valve block further comprises: a shuttle valve;
the shuttle valve is connected between the hydraulic steering gear and the second hydraulic lock, the shuttle valve is respectively connected with a first port and a second port of the hydraulic steering gear, and the shuttle valve is also respectively connected with the logic valve and the electromagnetic stop valve.
10. A hydraulic steering arrangement according to claim 3, wherein the diverter valve comprises a one-way stable diverter valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320487298.8U CN219651257U (en) | 2023-03-14 | 2023-03-14 | Hydraulic steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320487298.8U CN219651257U (en) | 2023-03-14 | 2023-03-14 | Hydraulic steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219651257U true CN219651257U (en) | 2023-09-08 |
Family
ID=87856556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320487298.8U Active CN219651257U (en) | 2023-03-14 | 2023-03-14 | Hydraulic steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219651257U (en) |
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2023
- 2023-03-14 CN CN202320487298.8U patent/CN219651257U/en active Active
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