CN113291375A - Steering system comprising hydraulic transmission unit - Google Patents
Steering system comprising hydraulic transmission unit Download PDFInfo
- Publication number
- CN113291375A CN113291375A CN202110643991.5A CN202110643991A CN113291375A CN 113291375 A CN113291375 A CN 113291375A CN 202110643991 A CN202110643991 A CN 202110643991A CN 113291375 A CN113291375 A CN 113291375A
- Authority
- CN
- China
- Prior art keywords
- steering
- telescopic cylinder
- hydraulic
- transmission unit
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/10—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of power unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/18—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by power transmitting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
Abstract
The present invention relates to a steering system including a hydraulic transmission unit. The steering system comprises a hydraulic transmission unit, and the hydraulic transmission unit comprises a first telescopic cylinder and a second telescopic cylinder; one end of the first telescopic cylinder is in transmission connection with the output side of the steering gear, and one end of the second telescopic cylinder is hinged with the knuckle arm; one of the two cylinder inner cavities of the first telescopic cylinder is communicated with one of the two cylinder inner cavities of the second telescopic cylinder through a first intercommunication pipeline, and the other of the two cylinder inner cavities of the first telescopic cylinder is communicated with the other of the two cylinder inner cavities of the second telescopic cylinder through a second intercommunication pipeline, so that oil in the two telescopic cylinders are intercommunicated; the first and second intercommunicating conduits each comprise a hose segment; when the first telescopic cylinder stretches, the second telescopic cylinder is driven to stretch under the hydraulic action. The steering system can adapt to the position change of the wheels through the hose sections of the intercommunicating pipelines in the lifting process of the wheels, thereby greatly simplifying the structure of the steering system.
Description
Technical Field
The present invention relates to the field of vehicles, and in particular to a steering system comprising a hydraulic transmission unit.
Background
With the increasing application demands, the use of amphibians in civilian applications is increasing, and the functional and performance requirements of amphibians are also increasing. The existing amphibious vehicle runs on land through wheels, and the wheels are generally folded upwards in order to reduce water surface resistance when on water, so that the change of the up-down positions of the wheels puts higher requirements on a wheel steering system.
At present, a steering system generally transfers force through a rod piece to realize steering transmission from a steering wheel to wheels, but the structure of the force transfer rod piece of the steering system in the form is often complex in order to meet the lifting of the wheels, and the transmission links are more, so that the manufacturing and assembling difficulty is greatly improved, the transmission precision is easily reduced, and the steering effect is influenced.
Disclosure of Invention
The invention aims to provide a steering system comprising a hydraulic transmission unit, which is used for solving the problem that the existing steering system comprising the hydraulic transmission unit is complex in structure.
The steering system of the present invention, which includes a hydraulic power transmission unit, includes:
the steering control mechanism, the steering gear, the steering transmission structure and the steering knuckle arm;
the steering transmission mechanism is connected with the steering gear and the steering knuckle arm so as to realize the transmission of steering signals between the steering gear and the steering knuckle arm;
the steering transmission mechanism comprises a hydraulic transmission unit, and the hydraulic transmission unit comprises a first telescopic cylinder and a second telescopic cylinder;
one end of the first telescopic cylinder is in transmission connection with the output side of the steering gear, the other end of the first telescopic cylinder is hinged with the vehicle body, one end of the second telescopic cylinder is hinged with the knuckle arm, and the other end of the second telescopic cylinder is hinged with the vehicle body;
one of the two cylinder inner cavities of the first telescopic cylinder is communicated with one of the two cylinder inner cavities of the second telescopic cylinder through a first intercommunication pipeline, and the other of the two cylinder inner cavities of the first telescopic cylinder is communicated with the other of the two cylinder inner cavities of the second telescopic cylinder through a second intercommunication pipeline, so that oil in the two telescopic cylinders are intercommunicated;
the first and second intercommunicating conduits each comprise a hose segment;
when the first telescopic cylinder stretches, the second telescopic cylinder is driven to stretch under the hydraulic action.
The steering system comprising the hydraulic transmission unit realizes steering transmission through the two telescopic cylinders communicated by the intercommunicating pipeline, and the intercommunicating pipeline comprises the hose sections, so that the hose sections of the intercommunicating pipeline can adapt to position change of wheels in the lifting process of the wheels, meanwhile, reliable steering transmission is ensured, and the structure of the steering system is greatly simplified.
Further, the number of the hydraulic transmission units is two, and the two hydraulic transmission units are respectively arranged corresponding to the two steering wheels of the amphibious vehicle one by one. The hydraulic transmission unit and the steering wheels are arranged one to one, so that independent and synchronous steering control of the two steering wheels can be realized, and the arrangement, the disassembly and the assembly and the maintenance of the transmission mechanism are convenient.
Furthermore, the steering transmission mechanism further comprises a rod system transmission unit, the rod system transmission unit comprises a steering trapezoid, the steering trapezoid is provided with an input connecting end and an output connecting end, the input connecting end is in transmission connection with the output side of the steering gear, and the two output connecting ends are hinged to one ends of the first telescopic cylinders of the two hydraulic transmission units respectively. A steering output signal of the steering gear can be converted into synchronous steering signals of two steering wheels through the steering trapezoid, and the overall structure of the transmission mechanism is simplified.
Furthermore, the rod system transmission unit further comprises a longitudinal pull rod, and the input connecting end of the steering trapezoid is in transmission connection with the steering gear through the longitudinal pull rod, so that the structure is simple.
Furthermore, as a preferred scheme of the steering trapezoid, the steering trapezoid comprises two trapezoid arms, each of the two trapezoid arms is provided with a fixed hinge structure hinged with the vehicle body and an output hinge structure hinged with the first telescopic cylinder, one of the two trapezoid arms is in transmission connection with the steering gear, the other is connected with the steering damper, and a tie rod is hinged between the two trapezoid arms.
As an optimized scheme, the first intercommunication pipeline and the second intercommunication pipeline are both connected with oil supplementing devices, oil can be supplemented into the intercommunication pipelines and the inner cavities of the cylinder bodies of the two communicated telescopic cylinders through the oil supplementing devices, oil quantity and oil pressure are guaranteed, and accuracy of hydraulic transmission between the first telescopic cylinder and the second telescopic cylinder is further guaranteed.
Further, as a preferred scheme of the oil supplementing device, the oil supplementing device comprises an oil supplementing tank, an oil supplementing pump, an oil supplementing pipeline and a controller, the controller is connected with the oil supplementing pump, the oil supplementing pipeline is connected with the two intercommunicating pipelines, and a non-return module is connected to the oil supplementing pipeline in series.
Furthermore, the oil supplementing device further comprises a hydraulic sensor used for detecting the hydraulic pressure of the oil way communicated with the two intercommunicating pipelines, the hydraulic sensor is connected with the controller, the controller judges whether oil is needed to be supplemented or not according to an oil pressure signal detected by the hydraulic sensor, and the oil supplementing pump is controlled to work when oil is needed to be supplemented. So can automated inspection oil pressure and mend oil, guaranteed to turn to transmission quality, realized automatic oil supplementation.
As another optimized scheme, the specifications of the first telescopic cylinder and the second telescopic cylinder are the same, so that the transmission control of the steering signals between the first hydraulic cylinder and the second hydraulic cylinder is more convenient.
In addition, the two cylinder body inner cavities of the first telescopic cylinder and the second telescopic cylinder are respectively a rod cavity and a rodless cavity, the first intercommunication pipeline is communicated with the rodless cavities of the two telescopic cylinders, and the second intercommunication pipeline is communicated with the rod cavities of the two telescopic cylinders. Therefore, the first telescopic cylinder and the second telescopic cylinder can be more consistent in stretching, and accurate transmission of steering signals is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of a steering system incorporating a hydraulic drive unit according to the present invention;
FIG. 2 is a schematic view of an embodiment of the steering system of the present invention including a hydraulic drive unit in a left-hand steering;
FIG. 3 is a schematic view of an embodiment of the steering system of the present invention including a hydraulic drive unit in a right-hand steering;
fig. 4 is a steering transmission logic diagram of a steering system incorporating a hydraulic transmission unit of the present invention.
In the figure: 1. a steering wheel; 10. a pipe column transmission shaft; 11. a diverter; 12. a steering assist device; 13. a longitudinal pull rod; 2. turning to a trapezoid; 3. a steering damper; 4. a first telescoping cylinder; 45. a first intercommunicating conduit; 5. a second telescoping cylinder; 54. a second intercommunicating conduit; 60. an oil supplementing tank; 61. an oil replenishing pump; 62. a controller; 63. an oil supplementing pipeline; 64. a one-way valve; 65. a hydraulic pressure sensor; 7. a knuckle arm; 8. a kingpin; 9. and (7) wheels.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The first embodiment of the steering system comprising the hydraulic transmission unit of the invention:
the steering system including the hydraulic transmission unit of the present embodiment is shown in fig. 1 to 4, and includes a steering control mechanism, a steering gear 11, a steering transmission structure, and a knuckle arm 7, which are sequentially connected in a transmission manner, wherein a driver controls the steering control mechanism, i.e., the steering wheel 1, to perform a steering operation, the steering control mechanism is capable of outputting a rotation signal to the steering gear 11, and the steering gear 11 drives the knuckle arm 7 through the steering transmission mechanism, so as to steer the corresponding kingpin 8 and the wheel 9 supported by the kingpin 8. For easier steering, the steering gear 11 is provided with a power steering device 12, the power steering device 12 can adopt the existing hydraulic power assistance and also can adopt the electric power assistance, and the power steering device is the existing mature technology and is not the main improvement of the invention, so the description of the embodiment is not repeated.
Specifically, the steering transmission structure includes a rod train transmission unit and a hydraulic transmission unit. The linkage transmission unit comprises a longitudinal pull rod 13 and a steering trapezoid 2, one end of the longitudinal pull rod 13 is hinged to the output side of the steering gear 11, namely a steering rocker arm, and the other end of the longitudinal pull rod is hinged to the steering trapezoid 2. The steering trapezia 2 comprises two opposite trapezia arms, and the two trapezia arms are provided with four hinge points. One of the four hinge points of the two trapezoid arms is a fixed hinge structure and is used for being hinged with the vehicle body; one is a synchronous transmission hinge structure, and a transverse pull rod is connected between the synchronous transmission hinge structures of the two trapezoidal arms so as to realize the synchronous rotation of the two trapezoidal arms; one is an input hinge structure which forms an input connecting end, the input hinge structure of one of the two trapezoidal arms is connected with the longitudinal pull rod 13, and the input hinge structure of the other trapezoidal arm is connected with the steering damper 3; the last one is an output hinged structure, which forms an output connecting end used for connecting the hydraulic transmission unit.
Two groups of hydraulic transmission units are respectively and correspondingly connected between two output connecting ends of the steering trapezoid 2 and the steering wheels corresponding to the two output connecting ends. Each group of hydraulic transmission units comprises a first telescopic cylinder 4 and a second telescopic cylinder 5, the first telescopic cylinder 4 is a hydraulic cylinder with a trapezoidal end, one end of the first telescopic cylinder 4 is hinged with an output hinge structure of a trapezoidal arm of the steering trapezoid 2, and the other end of the first telescopic cylinder is hinged with a vehicle body; the second telescopic cylinder 5 is a wheel-side end hydraulic cylinder, one end of the second telescopic cylinder is hinged with the knuckle arm 7, and the other end of the second telescopic cylinder is hinged with a vehicle body.
One of the two cylinder inner cavities of the first telescopic cylinder 4 is communicated with one of the two cylinder inner cavities of the second telescopic cylinder 5 through a first intercommunication pipeline 45, and the other of the two cylinder inner cavities of the first telescopic cylinder 4 is communicated with the other of the two cylinder inner cavities of the second telescopic cylinder 5 through a second intercommunication pipeline, so that oil in the two telescopic cylinders are intercommunicated. The first and second intercommunicating pipelines are both of hose structures.
Specifically, as shown in fig. 1, a cylinder body of the first telescopic cylinder 4 is hinged to a vehicle body, the end part of a piston rod is hinged to a trapezoidal arm, and an inner cavity of the piston rod is divided into a rod cavity and a rodless cavity; the cylinder body of the second telescopic cylinder 5 is hinged to the vehicle body, the end part of a piston rod is hinged to the knuckle arm 7, and the inner cavity of the piston rod is divided into a rod cavity and a rodless cavity; the first intercommunication line 45 communicates the rodless cavities of the first telescopic cylinder 4 and the second telescopic cylinder 5, and the second intercommunication line communicates the rod cavities of the first telescopic cylinder 4 and the second telescopic cylinder 5.
The steering process of the steering system including the hydraulic transmission unit of the present embodiment is shown in conjunction with fig. 2 to 4.
When a vehicle needs to turn left, as shown in fig. 2 and 4, a driver turns the steering wheel 1 left, a transmission shaft connected to the steering wheel 1 and the steering gear 11 rotates left, and drives a steering rocker of the steering gear 11, namely a vertical arm of the steering gear 11 swings forwards, the longitudinal pull rod 13 pushes the trapezoidal arm to swing left, the rear end of the trapezoidal arm swings left, a piston rod of the trapezoidal end hydraulic cylinder moves left, correspondingly, under the action of oil pressure, the piston rod of the wheel edge end hydraulic cylinder moves left, at the moment, the piston rod of the trapezoidal end hydraulic cylinder on the left side retracts, the piston rod of the wheel edge end hydraulic cylinder on the left side extends, the piston rod of the trapezoidal end hydraulic cylinder on the right side extends, the piston rod of the wheel edge end hydraulic cylinder on the right side retracts, and thus, under the action of the wheel edge end hydraulic cylinder, the two steering wheels rotate anticlockwise around a steering knuckle, and the vehicle turns left.
When a vehicle needs to turn right, as shown in fig. 3 and 4, a driver turns right the steering wheel 1, the steering wheel 1 is connected to the transmission shaft of the steering wheel 11 to rotate right, the steering rocker of the steering gear 11, namely the vertical arm of the steering gear 11, swings backwards, the longitudinal pull rod 13 pushes the trapezoidal arm to swing right, the rear end of the trapezoidal arm swings right, the piston rod of the trapezoidal end hydraulic cylinder moves right, correspondingly, under the action of oil pressure, the piston rod of the wheel edge end hydraulic cylinder moves right, at the moment, the piston rod of the trapezoidal end hydraulic cylinder on the left side extends out, the piston rod of the wheel edge end hydraulic cylinder on the left side retracts, the piston rod of the trapezoidal end hydraulic cylinder on the right side retracts, the piston rod of the wheel edge end hydraulic cylinder on the right side extends out, and thus, under the action of the wheel edge end hydraulic cylinder, the two.
It can be known from the introduction above that, the steering transmission from the steering trapezoid 2 to the knuckle arm 7 is mainly realized by the hydraulic transmission of the first and second telescopic cylinders of the hydraulic transmission unit, so preferably, the first telescopic cylinder 4 and the second telescopic cylinder 5 adopt the same specification, so that the expansion amount of the first telescopic cylinder 4 can be transmitted to the second telescopic cylinder 5 in an equivalent and synchronous manner, which is convenient for control and calculation and also ensures the accuracy of the steering transmission.
Of course, in other embodiments, the specifications of the first telescopic cylinder 5 and the second telescopic cylinder 5 of the same hydraulic transmission unit may also be different, and it needs to be satisfied that the inner diameter ratio of the rodless cavities of the two telescopic cylinders is equal to the inner diameter ratio of the rod cavities of the two telescopic cylinders, that is, the telescopic amount of the first telescopic cylinder 4 and the telescopic amount of the second telescopic cylinder 5 are in a certain ratio.
The present embodiment also includes a more preferable solution, that is, the first communicating pipeline 45 and the second communicating pipeline are both connected with an oil supplementing device. The oil supplementing device comprises an oil supplementing tank 60, an oil supplementing pump 61, an oil supplementing pipeline 63 and a controller 62, wherein the controller 62 is connected with the oil supplementing pump 61, the oil supplementing pipeline 63 is connected with the two communicated pipelines, and the oil supplementing pipeline 63 is connected with a one-way valve 64 in series. The hydraulic oil in the oil supplementing tank 60 can be pumped into the intercommunicating pipeline in a single direction through the oil supplementing pump 61, and then is supplemented into the first telescopic cylinder 5 and the second telescopic cylinder 5, so that the stability of the hydraulic pressure in the two telescopic cylinders is ensured, and the transmission accuracy of the steering system is improved. The oil supplementing device further comprises a hydraulic sensor 65 for detecting the hydraulic pressure in the oil circuit communicated with the two communicating pipelines, the hydraulic sensor 65 is preferably arranged at the interface position of the first telescopic cylinder 4 connected with the communicating pipelines, the hydraulic sensor 65 is connected with the controller 62, the controller 62 judges whether oil supplementing is needed according to an oil pressure signal detected by the hydraulic sensor 65, and the oil supplementing pump 61 is controlled to work when oil supplementing is needed.
The steering system containing the hydraulic transmission unit of this embodiment includes the hydraulic transmission unit, and the hydraulic transmission unit has realized the steering transmission from the steering trapezoid to the knuckle through the intercommunication pipeline of two telescopic cylinders of separation and connection two telescopic cylinders of separation, the intercommunication pipeline of hose construction makes two telescopic cylinders when can realizing synchronous flexible, relative position is variable, so fine satisfied amphibian needs the driving demand that the wheel goes up and down in the land and water switching process, whole steering system's structure is also comparatively simple.
The steering system of the present invention including the hydraulic transmission unit is not limited to the above-described embodiment, and several other modified embodiments are provided below based on the design concept of the present invention.
For example, in other embodiments, the steering mechanism is a steering handle or steering wheel, unlike the embodiments described above.
For example, in other embodiments, different from the above-described embodiments, the steering control mechanism and the steering gear may also transmit the steering signal by using an electronic control method, that is, when the steering control mechanism is rotated, the rotation angle sensor detects the rotation angle, the rotation angle sensor transmits the rotation angle signal to the controller, and the controller controls the steering gear to output the steering action in an equal ratio.
For example, in other embodiments, unlike the embodiments described above, the intercommunicating conduits are in part hose segments and in part hard metal tube segments.
For example, in other embodiments, unlike the above-described embodiments, there is one hydraulic transmission unit that steers one steering wheel that steers the other steering wheel opposite to the left and right sides thereof via the steering link.
For another example, in other embodiments, unlike the above-described embodiments, the configuration of the turning trapezoid may also adopt an ackermann turning trapezoid formed by connecting rods, and there are many different forms of turning trapezoid structures in the prior art that can be applied to the solution of the present invention.
Alternatively, in other embodiments, different from the above-described embodiments, the two telescopic cylinders of the hydraulic transmission unit may also be hydraulic cylinders having two rod cavities, and one end of the telescopic rod extending out of the two ends of the hydraulic cylinder is used for hinging with the corresponding structure.
The main idea of the invention is that the hydraulic transmission between two separated hydraulic cylinders contained in the hydraulic transmission unit realizes steering transmission, and simultaneously meets the lifting requirement of wheels through the intercommunication pipeline, the hinged position of the two hydraulic cylinders of the hydraulic transmission unit and the vehicle body and the telescopic state of the two hydraulic cylinders can be changed according to different conditions, and only the requirement that the synchronous steering of the two steering wheels in the same direction can be realized is met.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. A steering system including a hydraulic drive unit, comprising:
a steering control mechanism, a steering gear (11), a steering transmission structure and a steering knuckle arm (7);
the steering transmission mechanism is connected with the steering gear (11) and the knuckle arm (7) to realize the transmission of steering signals between the steering gear and the knuckle arm;
it is characterized in that the utility model is characterized in that,
the steering transmission mechanism comprises a hydraulic transmission unit, and the hydraulic transmission unit comprises a first telescopic cylinder (4) and a second telescopic cylinder (5);
one end of the first telescopic cylinder (4) is in transmission connection with the output side of the steering gear (11), the other end of the first telescopic cylinder is hinged with a vehicle body, one end of the second telescopic cylinder (5) is hinged with the knuckle arm (7), and the other end of the second telescopic cylinder is hinged with the vehicle body;
one of the two cylinder inner cavities of the first telescopic cylinder (4) is communicated with one of the two cylinder inner cavities of the second telescopic cylinder (5) through a first intercommunication pipeline (45), and the other of the two cylinder inner cavities of the first telescopic cylinder (4) is communicated with the other of the two cylinder inner cavities of the second telescopic cylinder (5) through a second intercommunication pipeline (54) so as to enable oil in the two telescopic cylinders to be intercommunicated;
the first and second intercommunication lines (45, 54) each comprise a hose section;
when the first telescopic cylinder (4) is stretched, the second telescopic cylinder (5) is driven to stretch under the hydraulic action.
2. A steering system including a hydraulic transmission unit according to claim 1, wherein the number of hydraulic transmission units is two, and the two hydraulic transmission units are provided one for each of the two steered wheels of the amphibious vehicle.
3. A steering system comprising a hydraulic transmission unit according to claim 2, wherein the steering transmission mechanism further comprises a bar system transmission unit, said bar system transmission unit comprises a steering trapezium (2), the steering trapezium (2) has an input connection end and an output connection end, the input connection end is in transmission connection with the output side of the steering gear (11), the output connection ends are two and are respectively hinged with one end of the first telescopic cylinders (4) of the two hydraulic transmission units.
4. A steering system comprising a hydraulic transmission unit according to claim 3, wherein the rod train transmission unit further comprises a longitudinal tie rod (13), and the input connection end of the steering trapezoid (2) is in transmission connection with the steering gear (11) through the longitudinal tie rod (13).
5. The steering system comprising a hydraulic transmission unit according to claim 3 or 4, wherein the steering ladder (2) comprises two ladder arms, each of which has a fixed hinge structure hinged to the vehicle body and an output hinge structure hinged to the first telescopic cylinder (4), one of the two ladder arms is in transmission connection with the steering gear (11), the other is connected with the steering damper (3), and a tie rod is hinged between the two ladder arms.
6. Steering system comprising a hydraulic transmission unit according to any one of claims 1-4, characterised in that both the first (45) and the second (54) intercommunicating line are connected with oil supplementing means.
7. The steering system comprising a hydraulic transmission unit according to claim 6, wherein the oil supply device comprises an oil supply tank (60), an oil supply pump (61), an oil supply pipeline (63) and a controller (62), the controller (62) is connected with the oil supply pump (61), the oil supply pipeline (63) is connected with the two intercommunicating pipelines, and a non-return module is connected in series on the oil supply pipeline (63).
8. The steering system including a hydraulic transmission unit according to claim 7, wherein the oil supply device further includes a hydraulic pressure sensor (65) for detecting a hydraulic pressure of an oil passage communicating with the two communication lines, the hydraulic pressure sensor (65) is connected to the controller (62), and the controller (62) determines whether oil supply is required based on an oil pressure signal detected by the hydraulic pressure sensor (65), and controls the oil supply pump (61) to operate when oil supply is required.
9. Steering system comprising a hydraulic transmission unit according to any of claims 1-4, characterized in that the first telescopic cylinder (4) and the second telescopic cylinder (5) are of the same size.
10. The steering system comprising a hydraulic transmission unit according to any one of claims 1 to 4, wherein the two cylinder bores of the first telescopic cylinder (4) and the second telescopic cylinder (5) are a rod chamber and a rodless chamber, respectively, the first communicating line (45) communicates the rodless chambers of the two telescopic cylinders, and the second communicating line (54) communicates the rod chambers of the two telescopic cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110643991.5A CN113291375A (en) | 2021-06-09 | 2021-06-09 | Steering system comprising hydraulic transmission unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110643991.5A CN113291375A (en) | 2021-06-09 | 2021-06-09 | Steering system comprising hydraulic transmission unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113291375A true CN113291375A (en) | 2021-08-24 |
Family
ID=77327829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110643991.5A Pending CN113291375A (en) | 2021-06-09 | 2021-06-09 | Steering system comprising hydraulic transmission unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113291375A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4568095A (en) * | 1984-07-05 | 1986-02-04 | Clark Equipment Company | All terrain vehicle control system |
| US5435407A (en) * | 1994-04-20 | 1995-07-25 | University Of Arkansas | Hydrostatic manual vehicle steering system |
| EP0926045A2 (en) * | 1997-12-15 | 1999-06-30 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Steering system in a traveling vehicle |
| CN2480183Y (en) * | 2001-06-19 | 2002-03-06 | 曹漪 | Wheel landing/unlanding amphibious vehicle |
| AU2012327870A1 (en) * | 2011-10-28 | 2014-06-19 | Ross Anthony STEVENS | Amphibious vehicle |
| CN103963825A (en) * | 2014-05-20 | 2014-08-06 | 徐州重型机械有限公司 | Steering system and independent suspension wheel type overload vehicle |
| US20170313148A1 (en) * | 2014-11-07 | 2017-11-02 | Mitsubishi Heavy Industries, Ltd. | Suspension device for amphibious vehicle |
| US20200254838A1 (en) * | 2019-02-12 | 2020-08-13 | Constant Chase, Llc | Amphibious vehicle |
| US20210155066A1 (en) * | 2018-06-27 | 2021-05-27 | Kubota Corporation | Riding Work Vehicle |
-
2021
- 2021-06-09 CN CN202110643991.5A patent/CN113291375A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4568095A (en) * | 1984-07-05 | 1986-02-04 | Clark Equipment Company | All terrain vehicle control system |
| US5435407A (en) * | 1994-04-20 | 1995-07-25 | University Of Arkansas | Hydrostatic manual vehicle steering system |
| EP0926045A2 (en) * | 1997-12-15 | 1999-06-30 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Steering system in a traveling vehicle |
| CN2480183Y (en) * | 2001-06-19 | 2002-03-06 | 曹漪 | Wheel landing/unlanding amphibious vehicle |
| AU2012327870A1 (en) * | 2011-10-28 | 2014-06-19 | Ross Anthony STEVENS | Amphibious vehicle |
| CN103963825A (en) * | 2014-05-20 | 2014-08-06 | 徐州重型机械有限公司 | Steering system and independent suspension wheel type overload vehicle |
| US20170313148A1 (en) * | 2014-11-07 | 2017-11-02 | Mitsubishi Heavy Industries, Ltd. | Suspension device for amphibious vehicle |
| US20210155066A1 (en) * | 2018-06-27 | 2021-05-27 | Kubota Corporation | Riding Work Vehicle |
| US20200254838A1 (en) * | 2019-02-12 | 2020-08-13 | Constant Chase, Llc | Amphibious vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102923187A (en) | Follow-up steering control system of multi-axle automobile crane and multi-axle automobile crane | |
| CN103963825A (en) | Steering system and independent suspension wheel type overload vehicle | |
| CN204801872U (en) | Integral couple of return circuit a steering system | |
| CN105416392A (en) | Push rod type composite steering system and mode switching control method thereof | |
| CN107651005A (en) | The electro-hydraulic mixing servo steering system and its control method of a kind of four-wheel walking machine | |
| CN103895697A (en) | Electric automobile chassis system with four-wheel independent steering function and steer-by-wire mechanism thereof | |
| CN112141207A (en) | Electro-hydraulic power-assisted steering system and crane | |
| CN102167077A (en) | Active steering device for vehicles | |
| CN202923705U (en) | Follow-up steering control system of multi-axle truck crane and multi-axle truck crane | |
| CN102632921A (en) | Electric drive pusher type steering system controlled by coupling force and displacement and control method | |
| CN112550445B (en) | Hydraulic power-assisted steering system | |
| US20060185926A1 (en) | Front to rear steering system mechanical linkage assembly | |
| CN113291375A (en) | Steering system comprising hydraulic transmission unit | |
| CN113147888A (en) | Steering gear, power-assisted steering system and crane | |
| CN111183724B (en) | Steering transmission device of double-front-axle steering wheel type off-road vehicle | |
| CN107010107B (en) | Hydraulic active steering system of motor bus and control method | |
| CN212047565U (en) | Integral double-loop steering gear assembly suitable for military off-road vehicle | |
| CN213442759U (en) | Electric power steering system of large-scale commercial vehicle | |
| CN107458458A (en) | Automobile chassis assembly | |
| CN203854715U (en) | Electromobile four-wheel independent steering chassis system and steer-by-wire mechanism thereof | |
| CN201354098Y (en) | Loader synchronous steering gear used for articulated vehicle frames | |
| CN112373562A (en) | Double-front-axle steering mechanism and automobile | |
| CN201201641Y (en) | Double power steering device | |
| CN102328687A (en) | Automobile hydraulic power-assisting active steering gear | |
| CN207208180U (en) | Based on hydraulicdriven wheel counter-steering mechanism in the same direction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210824 |