CN216102363U - Steering oil cylinder and steering control system comprising same - Google Patents
Steering oil cylinder and steering control system comprising same Download PDFInfo
- Publication number
- CN216102363U CN216102363U CN202122742658.8U CN202122742658U CN216102363U CN 216102363 U CN216102363 U CN 216102363U CN 202122742658 U CN202122742658 U CN 202122742658U CN 216102363 U CN216102363 U CN 216102363U
- Authority
- CN
- China
- Prior art keywords
- steering
- oil cylinder
- middle position
- control
- power
- 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.)
- Active
Links
Images
Landscapes
- Steering Control In Accordance With Driving Conditions (AREA)
- Power Steering Mechanism (AREA)
Abstract
The utility model provides a steering oil cylinder and a steering control system comprising the same, wherein the steering oil cylinder comprises a piston rod, a middle position prompt piece and an oil cylinder shell; the steering control system comprises a steering device, a middle position detection mechanism and a steering control mechanism; the steering device comprises a steering wheel, a steering power-assisted mechanism and the steering oil cylinder as claimed in claim 1, wherein the steering power-assisted mechanism is respectively connected with the steering oil cylinder, the steering wheel and the steering control mechanism; the steering is realized by rotating a steering wheel to drive a steering power-assisted mechanism to control the pressure difference of a steering oil cylinder; the middle position detection mechanism comprises a middle position signal detector, a detection probe of the middle position signal detector is mounted on the oil cylinder shell, and whether the axle is located in the middle position or not is judged through detection of the detection probe on the induction color ring.
Description
Technical Field
The utility model relates to the technical field of axle neutral position detection and steering precision control, in particular to a steering oil cylinder and a steering control system comprising the same.
Background
The axle mainly bears the load of the automobile and maintains the normal running of the automobile on the road, and is one of the main components of the automobile. According to different driving modes, the axle is divided into a steering axle, a driving axle, a steering driving axle and a supporting axle. The steering drive axle is the same as a general drive axle, and is provided with a main speed reducer and a differential mechanism, but because the steering wheels need to deflect a certain angle around a kingpin during steering, the half shaft is divided into an inner half shaft and an outer half shaft which are connected through a universal joint, so that the steering drive axle has the functions of: firstly, the wheels are deflected by a certain angle by utilizing the swinging of a steering knuckle so as to realize the steering of the automobile; and secondly, bearing vertical load between the wheel and the frame, longitudinal road resistance, braking force and lateral force and moment formed by the forces.
The main problems in the field of current axle neutral position detection and steering precision control are as follows: engineering machinery mostly adopts a steering drive axle to realize the steering and driving functions of a vehicle, and uses a remote control function on the vehicle to control the running and operation of the vehicle. However, since many engineering vehicles run in narrow culverts or roadways, the vehicles cannot accurately control the vehicles to run in the culverts or roadways, and the vehicles need to be pre-steered and backed for multiple times to pass through, so that the operating efficiency of the vehicles is seriously influenced. Therefore, a monitoring device capable of knowing the steering direction of the steering axle in real time is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steering oil cylinder and a steering control system comprising the same, aiming at the defects in the prior art.
In order to achieve the aim, the utility model provides a steering oil cylinder which comprises a piston rod, a middle position prompting piece and an oil cylinder shell, wherein the piston rod is connected with the middle position prompting piece; the piston rod is arranged in the oil cylinder shell and can extend or retract relative to the oil cylinder shell; the middle position prompting piece is arranged on the piston rod, and the middle position prompting piece is arranged to be an induction color ring with obvious color difference with the piston rod.
The utility model also discloses a steering control system, which comprises a steering device, a middle position detection mechanism and a steering control mechanism; the steering device comprises a steering wheel, a steering power-assisted mechanism and the steering oil cylinder, wherein the steering power-assisted mechanism is respectively connected with the steering oil cylinder, the steering wheel and the steering control mechanism; the steering is realized by rotating a steering wheel to drive a steering power-assisted mechanism to control the pressure difference of a steering oil cylinder; the middle position detection mechanism comprises a middle position signal detector, a detection probe of the middle position signal detector is mounted on the oil cylinder shell, and whether the axle is located in the middle position or not is judged through detection of the detection probe on the induction color ring.
Optionally, the steering power-assisted mechanism comprises an accumulator, a hydraulic pump, a hydraulic pipeline and a steering gear.
Optionally, the hydraulic pump is connected with the steering cylinder through a hydraulic pipeline, an energy accumulator is connected in series on the hydraulic pipeline, and the control valve bank is connected with the steering control mechanism.
Optionally, one end of the steering gear is connected with the piston rod, and the other end of the steering gear is connected with the steering wheel.
Optionally, the steering control system further includes an angle sensor for detecting a rotation angle of the steering wheel, the angle sensor is connected to the steering control mechanism, and data obtained by the angle sensor through the steering control mechanism drives the power assisting mechanism to control a pressure difference of the steering cylinder to achieve steering.
Optionally, the steering assist mechanism further comprises a control valve group.
Optionally, the energy accumulator and the control valve bank are connected in series on the hydraulic pipeline, and the control valve bank is connected with the steering control mechanism.
Optionally, the steering control system further comprises a remote control mechanism, and the remote control mechanism is connected with the steering control mechanism to realize remote control of the steering control mechanism to realize steering.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the steering oil cylinder provided by the utility model, the piston rod is provided with the induction color ring, so that whether the axle is in the middle position or not can be detected by detecting the induction color ring in the steering process.
(2) According to the steering drive axle middle position detection device provided by the utility model, the induction color ring on the piston rod is detected by the middle position detector to determine the steering middle position of the steering axle, so that the driving error caused by the fact that a driver does not know the steering angle of the axle in a cab is solved, and the operability and the safety of a vehicle are improved.
(3) According to the steering drive axle middle position detection device provided by the utility model, the steering power-assisted mechanism is arranged, so that the arrangement of an oil way is reduced, and the interference of hydraulic residual force is avoided.
(4) According to the steering drive axle middle position detection device provided by the utility model, the steering error correction is realized by comparing the angle detection value of the steering wheel with the middle position detection value of the steering oil cylinder through arranging the angle sensor on the steering wheel.
(5) According to the steering drive axle middle position detection device provided by the utility model, the steering control mechanism is arranged, so that the steering control mechanism can compare the numerical values of middle position detection and angle detection, and the accurate control of axle steering is realized.
(6) The steering drive axle middle position detection device provided by the utility model can be remotely controlled by arranging the remote control mechanism.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic cross-sectional view of a steering cylinder in an embodiment of the present invention (shown as a hydraulic circuit);
fig. 2 is a schematic diagram of the framework of the steering control system in an embodiment of the utility model (represented by hydraulic lines and communication lines and represented by mechanical connections).
Wherein:
1. the device comprises a steering oil cylinder, 1.1, a piston rod, 1.2, an induction color ring, 1.3, a first hydraulic inlet/outlet, 1.4, an oil cylinder shell, 1.5, a second hydraulic inlet/outlet, 2, a neutral signal detector, 2.1, a detection probe, 3, a power-assisted steering mechanism, 4, an angle sensor, 5, a steering wheel, 6, a steering control mechanism, 7 and a remote control mechanism.
Detailed Description
In order to make the aforementioned objects, features, advantages, and the like of the present invention more clearly understandable, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the present invention are simplified and are not to precise scale, and are provided for convenience and clarity in assisting the description of the embodiments of the present invention; the several references in this disclosure are not limited to the particular numbers in the examples of the figures; the directions or positional relationships indicated by ' front ' middle, ' rear ' left ', right ', upper ', lower ', top ', bottom ', middle ', etc. in the present invention are based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction, nor should be construed as limiting the present invention.
In this embodiment:
referring to fig. 1, a steering cylinder includes a piston rod 1.1, a middle position prompting member 1.2, a first hydraulic oil inlet and outlet 1.3, a cylinder housing 1.4, and a second hydraulic oil inlet and outlet 1.5, where the piston rod 1.1 is disposed in the cylinder housing 1.4 and can extend out or retract with respect to the cylinder housing, the middle position prompting member 1.2 is preferably disposed as an inductive color ring, the inductive color ring is disposed on the piston rod 1.1 and has an obvious color difference with the piston rod 1.1, and the first hydraulic oil inlet and outlet 1.3 and the second hydraulic oil inlet and outlet 1.5 are respectively disposed on the cylinder housing 1.4 and are communicated with a cavity of the steering cylinder.
Referring to fig. 2, a steering control system includes a steering device, a neutral position detecting mechanism, and a steering control mechanism 6;
the steering device comprises a steering wheel 5, a steering power-assisted mechanism 3 and the steering oil cylinder 1, wherein the steering power-assisted mechanism 3 is respectively connected with the steering oil cylinder 1, the steering wheel 5 and a steering control mechanism 6; the steering is realized by rotating the steering wheel 5 to drive the steering power-assisted mechanism 3 to control the pressure difference of the steering oil cylinder 1;
the middle position detection mechanism comprises a middle position signal detector 2, a detection probe 2.1 of the middle position signal detector 2 is mounted on a cylinder shell 1.4, and whether the axle is located in the middle position or not is judged through the detection of the detection probe 2.1 on the induction color ring.
The steering power-assisted mechanism 3 comprises an energy accumulator, a hydraulic pump, a hydraulic pipeline and a steering gear; the hydraulic pump is connected with the steering oil cylinder through a hydraulic pipeline, an energy accumulator is connected in series on the hydraulic pipeline, and the control valve group is connected with the steering control mechanism; one end of the steering gear is connected with the piston rod, and the other end of the steering gear is connected with the steering wheel.
Preferably, the steering control system further comprises an angle sensor 4 for detecting the rotation angle of the steering wheel, the angle sensor 4 is connected with the steering control mechanism 6, and the steering control mechanism 6 acquires data of the angle sensor 4 to drive the power-assisted mechanism 3 to control the pressure difference of the steering cylinder 1 to realize steering; the steering power-assisted mechanism 3 further comprises a control valve group; the energy accumulator and the control valve group are connected in series on a hydraulic pipeline, and the control valve group is connected with the steering control mechanism.
Preferably, the steering control system further comprises a remote control mechanism 7, wherein the remote control mechanism 7 is in communication connection with the steering control mechanism 6 and is used for receiving detection data of the neutral position detector and the angle sensor 5 and remotely controlling the steering control mechanism 6 to realize steering.
The specific process of applying the steering driving axle middle position detection device to the axle steering detection is as follows:
1) neutral steering detection and steering wheel angle detection: detecting an induction color ring of a piston rod of the oil cylinder by a middle position detector to determine the middle position of the axle; the steering wheel angle sensor detects a steering wheel rotation angle value, the steering wheel rotation angle corresponding to an axle steering angle can be known through conversion of the steering wheel rotation angle value, a zero position value of the steering wheel angle sensor is adjusted in real time through a middle position state transmitted by the middle position sensor, and a detection result is transmitted to the steering control mechanism and the remote control mechanism through the middle position detector;
2) and (3) steering precision control: the accurate value of the steering angle of the axle can be determined by collecting data of a middle position detector and a steering wheel angle sensor in real time, when the steering angle of a steering wheel is adjusted, the steering power-assisted mechanism automatically adjusts the oil pressure and the oil quantity of a first hydraulic oil inlet and a second hydraulic oil inlet and outlet of a steering oil cylinder, and the axle is steered by stretching and retracting the steering oil cylinder, so that the axle is accurately controlled to rotate to any angle within the allowable range of the steering angle;
3) remote control angle adjustment: the remote control mechanism collects detection data transmitted by the middle position detector and the steering wheel angle sensor, and the aim of remotely controlling the steering of the vehicle is fulfilled by remotely controlling the steering power-assisted mechanism.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A steering cylinder is characterized in that: the device comprises a piston rod, a middle position prompting piece and an oil cylinder shell;
the piston rod is arranged in the oil cylinder shell and can extend or retract relative to the oil cylinder shell;
the middle position prompting piece is arranged on the piston rod, and the middle position prompting piece is arranged to be an induction color ring with obvious color difference with the piston rod.
2. A steering control system characterized by: the steering device comprises a steering device, a middle position detection mechanism and a steering control mechanism;
the steering device comprises a steering wheel, a steering power-assisted mechanism and the steering oil cylinder as claimed in claim 1, wherein the steering power-assisted mechanism is respectively connected with the steering oil cylinder, the steering wheel and the steering control mechanism; the steering is realized by rotating a steering wheel to drive a steering power-assisted mechanism to control the pressure difference of a steering oil cylinder;
the middle position detection mechanism comprises a middle position signal detector, a detection probe of the middle position signal detector is mounted on the oil cylinder shell, and whether the axle is located in the middle position or not is judged through detection of the detection probe on the induction color ring.
3. The steering control system according to claim 2, characterized in that: the steering power-assisted mechanism comprises an energy accumulator, a hydraulic pump, a hydraulic pipeline and a steering gear;
the hydraulic pump is connected with the steering oil cylinder through a hydraulic pipeline, an energy accumulator is connected in series on the hydraulic pipeline, and the control valve group is connected with the steering control mechanism;
one end of the steering gear is connected with the piston rod, and the other end of the steering gear is connected with the steering wheel.
4. The steering control system according to claim 3, characterized in that: the steering control mechanism obtains data of the angle sensor and drives the power-assisted mechanism to control the pressure difference of the steering oil cylinder to realize steering.
5. The steering control system according to claim 4, characterized in that: the steering power-assisted mechanism further comprises a control valve group;
the energy accumulator and the control valve group are connected in series on a hydraulic pipeline, and the control valve group is connected with the steering control mechanism.
6. The steering control system according to claim 2, characterized in that: the remote control mechanism is connected with the steering control mechanism to realize remote control of the steering control mechanism to realize steering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122742658.8U CN216102363U (en) | 2021-11-10 | 2021-11-10 | Steering oil cylinder and steering control system comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122742658.8U CN216102363U (en) | 2021-11-10 | 2021-11-10 | Steering oil cylinder and steering control system comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216102363U true CN216102363U (en) | 2022-03-22 |
Family
ID=80715209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122742658.8U Active CN216102363U (en) | 2021-11-10 | 2021-11-10 | Steering oil cylinder and steering control system comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216102363U (en) |
-
2021
- 2021-11-10 CN CN202122742658.8U patent/CN216102363U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3564095B1 (en) | Steering device, suspension cylinder, control system and method, and crane | |
| CN106828597B (en) | Steering control system, crane and steering control method | |
| CN102923187B (en) | The follow-up steering control system of multi-wheeler hoisting crane and multi-wheeler hoisting crane | |
| CN108820035B (en) | Steering control method of wire-controlled hydraulic steering system of commercial vehicle | |
| CN103963825A (en) | Steering system and independent suspension wheel type overload vehicle | |
| CN108045432B (en) | Steering cylinder, hydraulic power steering system, steering axle and vehicle | |
| JPS63297173A (en) | Composite steering device for automobile | |
| EP3984860A1 (en) | Steering system of engineering vehicle and backhoe loader | |
| EP3533688B1 (en) | Active steering system for use in hoisting machinery, and hoisting machinery | |
| CN216102363U (en) | Steering oil cylinder and steering control system comprising same | |
| CN109987135B (en) | Steering system for heavy vehicle | |
| CN113978546A (en) | Steering oil cylinder and steering control system comprising same | |
| CN210555103U (en) | Motor-driven composite steer-by-wire system of passenger vehicle | |
| CN205149964U (en) | Electronic power assisted steering device of EPS of positive function is initiatively returned in area | |
| CN202098457U (en) | Electrical control hydraulic four-wheel steering system | |
| CN217170785U (en) | Multi-mode steering system of hybrid special automobile chassis | |
| CN210101744U (en) | Active steering system combining EPS and EHPS of commercial vehicle | |
| CN211001542U (en) | Auxiliary steering device of multifunctional vehicle | |
| CN109466626B (en) | Full-drive full-steering special truck chassis | |
| CN209938713U (en) | Fault emergency device for steer-by-wire | |
| CN112977605A (en) | Drive-by-wire full hydraulic steering system for unmanned mining vehicle | |
| CN209938716U (en) | Power steering system | |
| CN218806089U (en) | Four-wheel steering system for aircraft tractor | |
| CN113682374B (en) | Road sweeper steering control system and method | |
| CN114348105B (en) | Rear wheel steering system of heavy truck and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |