CN111874085B - A dual-input steering device - Google Patents
A dual-input steering device Download PDFInfo
- Publication number
- CN111874085B CN111874085B CN202010912444.8A CN202010912444A CN111874085B CN 111874085 B CN111874085 B CN 111874085B CN 202010912444 A CN202010912444 A CN 202010912444A CN 111874085 B CN111874085 B CN 111874085B
- Authority
- CN
- China
- Prior art keywords
- steering
- rotating
- output shaft
- coupling member
- rotating member
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
-
- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Steering Controls (AREA)
Abstract
本申请涉及转向装置技术领域，具体而言，涉及一种双输入转向装置，其包括：机架；转向输出轴，可转动地安装于机架；转向结合器，包括第一结合件和第二结合件，第一结合件和第二结合件均周向固定且轴向可移动地设置于转向输出轴；第一动力输入装置，安装于机架，包括第一转动机构和第一转动件，第一转动件用于与第一结合件传动连接，第一转动机构用于驱动第一转动件转动；第二动力输入装置，安装于机架，包括第二转动机构和第二转动件，第二转动件用于与第二结合件传动连接，第二转动机构用于驱动第二转动件转动；转向切换装置，安装于机架，用于驱动转向结合器沿转向输出轴移动，以使转向输出轴连接第一动力输入装置或第二动力输入装置。
The present application relates to the technical field of steering devices, and specifically, to a dual-input steering device, which comprises: a frame; a steering output shaft, rotatably mounted on the frame; a steering coupler, comprising a first coupling member and a second coupling member, the first coupling member and the second coupling member being both circumferentially fixed and axially movably arranged on the steering output shaft; a first power input device, mounted on the frame, comprising a first rotating mechanism and a first rotating member, the first rotating member being used for transmission connection with the first coupling member, and the first rotating mechanism being used for driving the first rotating member to rotate; a second power input device, mounted on the frame, comprising a second rotating mechanism and a second rotating member, the second rotating member being used for transmission connection with the second coupling member, and the second rotating mechanism being used for driving the second rotating member to rotate; a steering switching device, mounted on the frame, and used for driving the steering coupler to move along the steering output shaft so that the steering output shaft is connected to the first power input device or the second power input device.
Description
Technical Field
The application relates to the technical field of steering devices, in particular to a double-input steering device.
Background
The existing vehicles generally adopt single-input steering, such as manual steering adopted by manual driving wheeled vehicles or electric steering adopted by intelligent unmanned wheeled vehicles, and cannot be compatible with two steering modes.
Disclosure of Invention
The application aims to provide a double-input steering device so as to solve the problem that the steering device in the prior art cannot be compatible with two steering modes.
Embodiments of the present application are implemented as follows:
In a first aspect, an embodiment of the present application provides a dual input steering apparatus, including:
A frame;
a steering output shaft rotatably mounted to the frame;
The steering coupler comprises a first coupling piece and a second coupling piece, wherein the first coupling piece and the second coupling piece are circumferentially fixed and axially movably arranged on the steering output shaft;
The first power input device is arranged on the frame and comprises a first rotating mechanism and a first rotating piece, the first rotating piece is used for being in transmission connection with the first combining piece, and the first rotating mechanism is used for driving the first rotating piece to rotate;
The second power input device is arranged on the frame and comprises a second rotating mechanism and a second rotating piece, the second rotating piece is used for being in transmission connection with the second combining piece, and the second rotating mechanism is used for driving the second rotating piece to rotate;
And the steering switching device is arranged on the frame and used for driving the steering coupler to move along the steering output shaft so that the steering output shaft is connected with the first power input device or the second power input device.
The double-input steering device provided by the application has the advantages that the steering output shaft can be connected with the first power input device or the second power input device through the steering connector, when the first connector is connected with the first rotating member, the first power input device drives the steering output shaft to rotate so as to output steering, and when the steering mode needs to be switched, the steering switching device drives the steering connector to move so as to separate the first connector from the first rotating member, and the second connector is close to the second rotating member and connected so as to drive the steering output shaft to rotate so as to output steering.
In one embodiment of the present application, optionally, the steering coupler further includes a first elastic member and a second elastic member, the first elastic member being abutted between the first and second coupling members, the second elastic member being abutted between the second rotating member and the second coupling member, the elastic force of the first elastic member being greater than the elastic force of the second elastic member;
the output end of the steering switching device is axially fixed and circumferentially rotatably connected to the first combining piece.
In the technical scheme, the output end of the steering switching device drives the first combining piece to move, when the first combining piece is connected with the first rotating piece, the first power input device drives the steering output shaft to rotate so as to output steering, the second elastic piece enables the second combining piece to be far away from the second rotating piece, when the steering mode needs to be switched, the steering switching device drives the first combining piece to move and separate from the first rotating piece, and meanwhile, when the first combining piece moves, the first elastic piece drives the second combining piece to compress the second elastic piece firstly, so that the second combining piece is close to the second rotating piece and connected. Through setting up first elastic component and second elastic component, when the second combined piece removes and blocks, first elastic component energy storage of compression is removed to first combined piece, and first elastic component release energy storage drive second combined piece, compression second elastic component when the obstacle is released, make the second combined piece be close to the second and rotate the piece, realize turning to the mode and switch over, and when need switch over the mode of turning to, turn to the switching device and drive first combined piece and move towards first rotating the piece, the second rotates the piece and can keep away from the second under the second elastic component effect and rotate the piece.
Therefore, when the power source is switched from the first power input device to the second power input device, even if the second combining piece is blocked, the steering switching device can normally act and can delay driving the second combining piece to be connected with the second rotating piece, so that the delay switching of the steering mode is realized, and when the power source is switched from the second power input device to the first power input device, the second elastic piece is quickly reset to disconnect the second combining piece from the second rotating piece.
In one embodiment of the present application, optionally, the first coupling member is sleeved on the steering output shaft and is matched with the key slot of the steering output shaft, and a circumferential ring groove is formed on the outer circumferential surface of the first coupling member;
the output end of the steering switching device is matched in the circumferential ring groove.
In the technical scheme, the first combining piece is matched with the key groove of the steering output shaft, so that the first combining piece can move along the steering output shaft, the first rotating piece can drive the steering output shaft to rotate when driving the first combining piece to rotate, and the output end of the steering switching device moves in the circumferential ring groove when the first combining piece rotates.
In one embodiment of the present application, optionally, the steering switching device includes an arc-shaped fork connected to an output end of the steering switching device, the arc-shaped fork extending along the circumferential ring groove.
According to the technical scheme, the arc-shaped shifting fork clamps the first combining piece, the first combining piece can enter and exit from the opening of the arc-shaped shifting fork so as to be convenient to install, the arc-shaped shifting fork and the arc-shaped shifting fork are connected stably, rotation is not affected, and when the steering switching device drives the first combining piece to move, the stress of the first combining piece is more balanced, so that the first combining piece can move stably.
In one embodiment of the present application, optionally, the first rotating mechanism includes a driving shaft and a steering wheel, the driving shaft is rotatably mounted on the frame, a rotation axis of the driving shaft is aligned with a rotation axis of the steering output shaft, the steering wheel is mounted on an end of the driving shaft away from the steering output shaft, and the first rotating member is mounted on an end of the driving shaft near the steering output shaft.
In the above technical solution, when the first coupling member is connected to the first power input device, in a manual mode, a user may drive the driving shaft through the steering wheel, and drive the first coupling member through the first rotating member on the driving shaft, thereby driving the steering output shaft to rotate.
In one embodiment of the present application, optionally, a plug is formed at an end of the driving shaft, and a socket is formed at an end of the steering output shaft, and the plug is clearance-fitted to the socket.
In the above technical scheme, the inserted link of the driving shaft is inserted into the jack of the steering output shaft, so as to ensure that the steering output shaft and the driving shaft are approximately on the same rotation axis, and also ensure that the first combining piece can move along the steering output shaft and be close to and connected with the first rotating piece, and meanwhile, the inserted link and the jack are in clearance fit, so that the two can rotate freely relative to each other without friction interference.
In one embodiment of the present application, optionally, the driving shaft cooperates with the first rotating member key slot, and the first rotating member is in meshed transmission with the first combining member.
In the above technical scheme, when the first combining piece is meshed with the first rotating piece, the driving shaft rotates to drive the first rotating piece, and the first rotating piece drives the first combining piece to rotate, so that the steering output shaft is driven to rotate.
In one embodiment of the present application, optionally, the first power input device further includes a third elastic member abutted between the frame and the first rotating member.
In the above technical scheme, when the steering switching device is to drive the first combining piece to move towards the first rotating piece, if the combination of the first combining piece and the first rotating piece is blocked, if the first combining piece and the first rotating piece can not be just meshed, the first combining piece can move in place, the first combining piece jacks up the first rotating piece along the driving shaft, the third elastic piece compresses, and at the moment, the rotating steering wheel drives the first rotating piece to move relative to the first combining piece, so that the concave-convex parts of the meshing parts of the first combining piece and the second combining piece correspond to each other, and the third elastic piece releases energy storage to drive the first rotating piece to move towards the first combining piece and mesh. Through the arrangement, when the power source is switched to the first power input device by the second power input device, even if the first combining piece and the first rotating piece cannot be just combined correspondingly, the steering switching device can normally act, and the first rotating piece can be driven in a delayed manner to be connected with the first combining piece, so that the delayed switching of the steering mode is realized.
In one embodiment of the present application, optionally, the second rotation mechanism includes a steering motor, a driving gear and a driven gear, the steering motor is mounted on the frame, the driving gear is connected to an output end of the steering motor, and the driven gear is meshed with the driving gear;
the second rotating member is rotatably mounted to the frame, and the driven gear is formed outside the second rotating member.
In the technical scheme, the steering motor drives the second rotating piece through the driving gear and the driven gear, so that the steering motor can be arranged on one side of the steering output shaft, the installation height is reduced, and the second rotating piece can be effectively driven.
In one embodiment of the present application, optionally, the steering switching device further includes a switching motor, a screw, and a nut, the switching motor is mounted to the frame, the screw is parallel to the steering output shaft, and the nut is screwed to the screw and connected to the first coupling member.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a dual input steering apparatus according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a steering output shaft and a drive shaft provided by an embodiment of the present application;
FIG. 3 is an exploded view of a steering output shaft and a drive shaft provided by an embodiment of the present application;
FIG. 4 is a bottom view of a dual input steering apparatus according to an embodiment of the present application;
FIG. 5 is a front view of a dual input steering apparatus according to an embodiment of the present application with a housing removed;
FIG. 6 is a front view of a first rotary member according to an embodiment of the present application;
Fig. 7 is a schematic perspective view of a first rotating member according to an embodiment of the present application;
Fig. 8 is a schematic perspective view of a second rotating member according to an embodiment of the present application;
fig. 9 is a schematic perspective view of a first coupling member according to an embodiment of the present application;
fig. 10 is a schematic perspective view of a second coupling member according to an embodiment of the present application.
The icons include 100-machine frame, 110-first base, 120-second base, 200-steering output shaft, 210-spline section, 211-jack, 220-mounting section, 230-output section, 300-first power input device, 310-driving shaft, 311-plunger, 320-first rotating member, 321-locking groove, 322-first concave part, 330-third elastic member, 400-second power input device, 410-steering motor, 411-driving gear, 412-driven gear, 420-second rotating member, 421-second concave part, 500-steering coupler, 510-first coupler, 511-circumferential ring groove, 512-first convex tooth, 520-second coupler, 521-second convex tooth, 530-first elastic member, 540-second elastic member, 600-spacer, 700-steering switching device, 710-arc-shifting fork, 720-switching motor, 730-lead screw, 740-sliding table, 800-steering angle detection device and 900-motor rotation angle detection device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application 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 application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.
Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Examples
The existing vehicles generally adopt single-input steering, such as manual steering adopted by manual driving wheeled vehicles or electric steering adopted by intelligent unmanned wheeled vehicles, and cannot be compatible with two steering modes. Taking an aged scooter or electric power-assisted scooter as an example, the steering mechanism of the electric power-assisted scooter can only be manually steered, and the double-input steering device provided by the embodiment of the application can simultaneously have an electric steering mode.
Fig. 1 shows a schematic structure of the dual input steering apparatus, which includes a frame 100, a first power input apparatus 300, a second power input apparatus 400, and a steering output shaft 200. The frame 100 is fixed to a frame of a vehicle, the first power input device 300, the second power input device 400, and the steering output shaft 200 are mounted to the frame 100, and the steering output shaft 200 is connected to the first power input device 300 or the second power input device 400, thereby acquiring power to implement rotation and outputting the rotation to a steering gear of the vehicle.
The dual input steering apparatus further includes a steering switching apparatus 700 and a steering coupler 500. The steering coupling 500 is provided on the steering output shaft 200 and is movable in the axial direction of the steering output shaft 200 while being circumferentially fixed with the steering output shaft 200 to achieve synchronous rotation. The steering switching device 700 is mounted to the frame 100 for driving the steering coupling 500 to move along the steering output shaft 200 as a whole. When the steering coupling 500 moves close to the first power input device 300 and is connected, the first power input device 300 drives the steering output shaft 200 to rotate, and when the steering coupling 500 moves close to the second power input device 400 and is connected, the second power input device 400 drives the steering output shaft 200 to rotate.
The first power input device 300 includes a first rotation mechanism and a first rotation member 320, the first rotation mechanism being configured to drive the first rotation member 320 to rotate, and the second power input device 400 includes a second rotation mechanism and a second rotation member 420, the second rotation mechanism being configured to drive the second rotation member 420 to rotate.
The first rotating member 320 and the second rotating member 420 are disposed along the steering output shaft 200, and neither the first rotating member 320 nor the second rotating member 420 interfere with the steering output shaft 200, but the first rotating member 320, the second rotating member 420, and the steering output shaft 200 can be independently rotated.
The steering coupling 500 includes a first coupling member 510 and a second coupling member 520, and when the steering coupling 500 is integrally moved on the steering output shaft 200, there are three cases in which the first coupling member 510 is adjacent to the first rotating member 320 and coupled thereto, the second coupling member 520 is separated from the second rotating member 420 while the first power input device 300 is used as a power source, the second coupling member 520 is adjacent to the second rotating member 420 and coupled thereto, the first coupling member 510 is separated from the first rotating member 320 while the second power input device 400 is used as a power source, and the third case in which the steering coupling 500 is located at the middle of the first rotating member 320 and the second rotating member 420, the first coupling member 510 is separated from the first rotating member 320, and the second coupling member 520 is separated from the second coupling member 520 while neither the first power input device 300 nor the second power input device 400 can drive steering.
In this embodiment, the scooter is taken as an example, the first power input device 300 is a manual steering mechanism, the second power input device 400 is an electric steering mechanism, and the above three modes are a manual steering mode, an electric steering mode and a neutral mode, respectively. In other embodiments, the first and second power input devices 300, 400 may be other types of power sources, and thus have other types of power steering modes.
To facilitate installation, the frame 100 includes a first base 110 and a second base 120, the first power input device 300 is installed to the first base 110, the second power input device 400 is installed to the second base 120, and the steering output shaft 200 is installed to the second base 120 with one end protruding from the second base 120 so as to be connected to a steering gear of a vehicle.
The first rotating mechanism of the first power input device 300 includes a driving shaft 310 and a steering wheel, the driving shaft 310 is rotatably mounted on the first base 110, one end of the driving shaft 310 is aligned with the steering output shaft 200, and the other end extends out of the first base 110 so as to be connected with the steering wheel, and it should be noted that the steering wheel is disposed at the shaft end in the prior art, but it is not shown in the drawings, but it should be understood by those skilled in the art that the steering wheel is disposed at the shaft end. The drive shaft 310 is coaxial with the steering output shaft 200 so that the axes of rotation of the two are on the same straight line.
The portion of the drive shaft 310 within the housing 100, i.e., near one end of the steering output shaft 200, is splined on the surface thereof. The first rotating member 320 is sleeved on the driving shaft 310, and is provided with a matching key slot. Thus, when the steering wheel rotates, the driving shaft 310 drives the first rotating member 320 to rotate.
Referring to fig. 2 and 3 again, the end of the driving shaft 310 is formed with a socket 211, the end of the steering output shaft 200 is formed with a plug 311, and the plug 311 is inserted into the socket 211 to ensure that the steering output shaft 200 and the driving shaft 310 are substantially on the same rotation axis. And the insert 311 is not in contact with the inner wall of the socket 211, i.e., the insert 311 is in clearance fit with the socket 211 to ensure that the two are free to rotate relative to each other without frictional interference.
A gasket 600 is arranged between the driving shaft 310 and the steering output shaft 200, and the gasket 600 is sleeved on the inserted link 311 so as to be blocked on the end face of the steering output shaft 200 when the driving shaft 310 and the steering output shaft 200 are assembled, so that annular blocking parts are formed on the outer surfaces of the driving shaft 310 and the steering output shaft 200. The annular barrier can limit the movement of the first rotation member 320 to the steering output shaft 200.
In order to keep the first rotating member 320 stable so as not to move the first rotating member 320 along the driving shaft 310 at will, the first power input device 300 further includes a third elastic member 330, where the third elastic member 330 abuts between the first rotating member 320 and the first base 110.
As shown in fig. 1, 4 and 5, the second rotating mechanism of the second power input device 400 includes a steering motor 410, a driving gear 411 and a driven gear 412, the steering motor 410 is mounted on the second base 120, the driving gear 411 is connected to an output end of the steering motor 410, the driving gear 411 is formed at an outside of the second rotating member 420, and the second rotating member 420 is rotatably mounted on the second base 120. The rotation of the steering motor 410 drives the driving gear 411 to rotate, and drives the driven gear 412 engaged with the driving gear 411 to rotate, thereby driving the second rotating member 420 to rotate.
The steering output shaft 200 includes a spline section 210, a mounting section 220, and an output section 230 in that order in the axial direction. Wherein the mounting section 220 is rotatably mounted to the second base 120, specifically, the mounting section 220 is connected to the second rotating member 420 through a rotating bearing, so that the steering output shaft 200 is relatively fixedly mounted to the second base 120, and the steering output shaft 200 can freely rotate within the second rotating member 420. The output passes through the second base 120 to be located outside of the housing 100 and the splined section 210 is located inside the housing 100.
The first coupling member 510 and the second coupling member 520 of the steering coupling 500 are respectively formed with a passage allowing the steering output shaft 200 to pass therethrough, and the inner wall of the passage is formed with a key groove, and the passage with the key groove is engaged with the spline section 210, so that the first coupling member 510 and the second coupling member 520 can move in the axial direction of the steering output shaft 200 and can drive the steering output shaft 200 to rotate.
The steering coupling 500 further includes a first elastic member 530 and a second elastic member 540, the first elastic member 530 being abutted between the first coupling member 510 and the second coupling member 520, the second elastic member 540 being abutted between the second coupling member 520 and the second rotating member 420, the elastic force of the first elastic member 530 being greater than the elastic force of the second elastic member 540.
The steering switching device 700 is a linear motion driving device, and the output end of the steering switching device 700 is connected to the first coupling member 510, although in other embodiments, the output end of the steering switching device 700 may be connected to the second coupling member 520.
The output end of the steering switching device 700 is axially fixed to the first coupling member 510 so as to be able to drive the first coupling member 510 to move along the steering output shaft 200, and the output end thereof is able to rotate relative to the first coupling member 510 in the circumferential direction thereof so that the output end of the steering switching device 700 does not follow rotation when the first coupling member 510 follows rotation of the first rotating member 320.
In order that the output end of the steering switching device 700 does not rotate following the first coupling member 510, there are optionally the following connection modes:
For example, the output end of the steering switching device 700 may be a collar sleeved outside the first coupling member 510, and the collar is connected to the first coupling member 510 through a rotating bearing.
For another example, a circumferential ring groove 511 is formed at the outside of the first coupling member 510, and the output end of the steering switching device 700 is fitted in the circumferential ring groove 511, and when the first coupling member 510 rotates, the output end of the steering switching device 700 remains fixed and moves along the circumferential ring groove 511.
In this embodiment, the output end of the steering switching device 700 is connected with an arc-shaped shifting fork 710, the arc-shaped shifting fork 710 is disposed in the circumferential ring groove 511, and two arms of the arc-shaped shifting fork 710 extend along the circumferential ring groove 511 to clamp the first combining member 510, so that the arc-shaped shifting fork 710 and the first combining member 510 are stably connected and are not easy to separate.
During installation, the first combining piece 510 can enter and exit from the opening of the arc-shaped shifting fork 710, and the two arms of the arc-shaped shifting fork 710 simultaneously lift or pull down the first combining piece 510, so that the stress of the first combining piece 510 is more balanced, and the first combining piece 510 can move stably.
The steering switching device 700 includes a switching motor 720, a screw 730 and a sliding table 740, wherein the switching motor 720 is mounted on the first base 110 (in other embodiments, the second base 120) and the screw 730 is parallel to the steering output shaft 200 and is connected to the output end of the switching motor 720, and the sliding table 740 is provided with a nut (not shown in the figure) to enable the sliding table 740 to be in threaded engagement with the screw 730, and the arc-shaped shifting fork 710 is mounted on the sliding table 740. The switch motor 720 drives the screw rod 730 to rotate, the sliding table 740 moves along the screw rod 730, and the arc-shaped shifting fork 710 drives the first combining piece 510 to move.
In other embodiments, the linear movement driving device formed by the switching motor 720, the screw 730 and the sliding table 740 may be replaced with an air cylinder, a hydraulic cylinder, or the like.
The first coupling member 510 is in meshed engagement with the first rotating member 320, and the second coupling member 520 is in meshed engagement with the second rotating member 420.
As shown in fig. 1, 6 and 7, one end of the first rotating member 320 faces the first base 110, the aforementioned third elastic member 330 abuts against the first base 110, and a first recess 322 is formed on the other end of the first rotating member 320.
As shown in fig. 1 and 8, the second rotating member 420 is mounted on the second base 120, and a second recess 421 is formed at one end of the second rotating member 420.
The first coupling member 510 of the steering coupling 500 is formed with first teeth 512 as shown in fig. 9, and the second coupling member 520 is formed with second teeth 521 as shown in fig. 10. The first teeth 512 are engaged with the first recesses 322 when the first coupling member 510 approaches the first rotating member 320, and the second teeth 521 are engaged with the second recesses 421 when the second coupling member 520 approaches the second rotating member 420.
The use method of the double-input steering device is as follows.
Neutral mode-when not in use, the dual input steering apparatus may be put in neutral mode to avoid unintended drive steering.
In this mode, the switching motor 720 drives the first coupling member 510 to separate from the first rotating member 320 through the shifting fork, the first elastic member 530 is not compressed temporarily, and the second elastic member 540 supports the second coupling member 520 to separate from the second rotating member 420. At this time, neither steering wheel nor steering motor 410 is able to rotate to drive steering output shaft 200.
The neutral mode can solve the problem that the steering is worn out of the tire in an undriven state.
The manual steering mode is that the switching motor 720 drives the first combining piece 510 to move towards the first rotating piece 320 through the arc-shaped shifting fork 710, so that the first convex tooth 512 of the first combining piece 510 is matched in the first concave part 322 of the first rotating piece 320, and when the steering wheel drives the driving shaft 310 to rotate, the steering output shaft 200 can be driven to rotate through the first rotating piece 320 and the first combining piece 510.
When the first coupling member 510 approaches the first rotating member 320 and the first tooth 512 cannot be exactly engaged in the first recess 322, the switching motor 720 can still rotate a certain number of revolutions according to the predetermined setting, so that the first coupling member 510 moves into place, and at this time, the first tooth 512 lifts up the first rotating member 320 and the third elastic member 330 compresses. When the first rotating member 320 rotates to a position where the first concave portion 322 aligns with the first convex tooth 512, the first rotating member 320 can drop, the first rotating member 320 and the first combining member 510 are engaged to drive, and the steering output shaft 200 can be driven to turn by continuing to rotate the steering wheel.
In the electric steering mode, the switch motor 720 drives the first combining piece 510 to move towards the second rotating piece 420 through the arc-shaped shifting fork 710, the first combining piece 510 pushes the second combining piece 520 to move towards the second rotating piece 420 through the first elastic piece 530, the second elastic piece 540 is compressed firstly because the elastic force of the first elastic piece 530 is larger than that of the second elastic piece 540, the second combining piece 520 is close to the second rotating piece 420, the second convex teeth 521 of the second combining piece 520 are matched in the second concave part 421 of the second rotating piece 420, and therefore the steering motor 410 drives the second rotating piece 420 through the driving gear 411 and the driven gear 412 when working and drives the steering output shaft 200 to rotate through the second rotating piece 420 and the second combining piece 520.
In the process of switching to the electric power steering mode, if the second coupling member 520 is blocked from rotating, for example, if the second tooth 521 cannot be exactly engaged in the second recess 421, the switching motor 720 can still rotate for a certain number of revolutions according to the predetermined setting, so that the first coupling member 510 moves into place, and the first elastic member 530 compresses the stored energy. Meanwhile, the steering motor 410 drives the second rotating member 420 to rotate, when the second rotating member 420 rotates to a position where the second concave portion 421 is aligned with the second convex tooth 521, the second combining member 520 can fall, the second rotating member 420 and the second combining member 520 are engaged and driven, and the steering motor 410 can continue to work to drive the steering output shaft 200 to steer.
Optionally, the dual input steering apparatus provided in this embodiment is further provided with a locking mechanism, where a locking groove 321 is formed on the first rotating member 320, and a locking end of the locking mechanism is inserted into the locking groove 321, so that the first rotating member 320 can be limited to rotate, thereby locking the steering wheel.
The locking end of the locking mechanism may be moved parallel to the driving shaft 310, for example, the locking end of the locking mechanism is a stopper rod mounted on the first base 110, which can be moved into the housing 100 and inserted into the locking groove 321, thereby restricting the rotation of the first rotation member 320 and the driving shaft 310.
The locking end of the locking mechanism may also be movable perpendicular to the driving shaft 310, for example, the locking end of the locking mechanism is a stopper rod mounted on the first base 110, which can be close to or far from the driving shaft 310, and can be caught in the locking groove 321 when the stopper rod is close to the driving shaft 310, thereby restricting the movement of the first rotation member 320 and the driving shaft 310.
The first rotation member 320, the driving shaft 310, and the steering wheel may be restricted from rotating by a locking mechanism in a case where the steering wheel is not required, for example, in a neutral mode or in an electric power steering mode. Locking the steering wheel in the electric power steering mode also avoids safety risks, such as the possibility that the steering wheel follows the rotation of the steering motor 410 if the first coupling member 510 is not successfully separated from the first rotating member 320 in the electric power steering mode, which may easily cause accidental injury to personnel in the vehicle.
In addition, when the vehicle is stopped, the double-input steering device may be placed in the manual steering mode, and then the first rotator 320, the drive shaft 310, the steering wheel, and the steering output shaft 200 may be restricted from rotating by the lock mechanism.
In order to clearly determine the steering angle output by the steering output shaft 200, the device is further provided with a steering angle detection device 800, wherein the steering angle detection device 800 is used for detecting the rotating angle of the steering output shaft 200 and feeding back the detection result to a vehicle control system, and the vehicle control system controls a vehicle-mounted display screen to display angle information, so that a user can know the current steering angle.
In some embodiments, steering accuracy is better controlled, with the diameter of the drive gear 411 being smaller than the diameter of the driven gear 412. In order to control steering in the electric steering mode, the device is further provided with a motor rotation angle detection device 900, wherein the motor rotation angle detection device 900 is used for detecting the rotation angle of the motor output shaft and feeding back the detection result to the vehicle control system. Before use, the vehicle control system compares the detection result of the motor rotation angle detection device 900 with the detection result of the steering angle detection device 800, thereby calibrating the steering motor 410. During running, the motor rotation angle detection device 900 and the steering angle detection device 800 feed back the steering angle to the control system of the vehicle in real time, so as to ensure that the steering motor 410 normally drives the steering output shaft 200 to rotate.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010912444.8A CN111874085B (en) | 2020-09-02 | 2020-09-02 | A dual-input steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010912444.8A CN111874085B (en) | 2020-09-02 | 2020-09-02 | A dual-input steering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111874085A CN111874085A (en) | 2020-11-03 |
| CN111874085B true CN111874085B (en) | 2025-03-18 |
Family
ID=73199634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010912444.8A Active CN111874085B (en) | 2020-09-02 | 2020-09-02 | A dual-input steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111874085B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114537507B (en) * | 2020-11-26 | 2024-03-19 | 比亚迪股份有限公司 | Decoupling or coupling device, steering system and vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211032721U (en) * | 2019-09-26 | 2020-07-17 | 鄂尔多斯市普渡科技有限公司 | Emergency steering system for vehicle |
| CN212529797U (en) * | 2020-09-02 | 2021-02-12 | 北京九星智元科技有限公司 | Double-input steering device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005027535A1 (en) * | 2005-06-15 | 2007-01-04 | Zf Lenksysteme Gmbh | Overlay steering mechanism e.g. power assisted steering mechanism for e.g. passenger car, has shaft or servo motor effecting on overlay drive over freewheel so that motion of links is restricted, during power flow reversal |
| CN108162752A (en) * | 2017-12-05 | 2018-06-15 | 安徽农业大学 | A kind of double gear variable-ratio front-mounted power output devices of tractor |
| DE102018203422A1 (en) * | 2018-03-07 | 2019-09-12 | Audi Ag | steering system |
| CN108423065B (en) * | 2018-05-17 | 2023-07-21 | 吉林大学 | A planetary gear active steering system with small tooth difference and its control method |
| CN110217236B (en) * | 2019-07-04 | 2021-03-09 | 爱驰汽车有限公司 | Driving mode switching system, method, apparatus and storage medium for automatic driving |
-
2020
- 2020-09-02 CN CN202010912444.8A patent/CN111874085B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211032721U (en) * | 2019-09-26 | 2020-07-17 | 鄂尔多斯市普渡科技有限公司 | Emergency steering system for vehicle |
| CN212529797U (en) * | 2020-09-02 | 2021-02-12 | 北京九星智元科技有限公司 | Double-input steering device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111874085A (en) | 2020-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2583878B1 (en) | Steering apparatus for vehicle | |
| US5636071A (en) | Speed reduction device for an electrically powered foldable rearview mirror | |
| WO2019154226A1 (en) | Rotary mechanism for display terminal, and vehicle | |
| US10766418B2 (en) | Electric retractable view device for vehicle | |
| EP4059753A1 (en) | Power assembly, drive system and automobile | |
| JP6604733B2 (en) | Electric retractable visual recognition device for vehicles | |
| CN103392082A (en) | Multi-shaft drive device | |
| CN111874085B (en) | A dual-input steering device | |
| US20220266931A1 (en) | Final drive disconnect mechanism via transmission | |
| WO2019073855A1 (en) | Port-locking actuator device for vehicle inlet | |
| CN108292831A (en) | The transmission of electric chassis truck and arrangement of clutch and electric chassis truck | |
| US11427135B2 (en) | Rotating mechanism for display terminal and vehicle | |
| CN111140652A (en) | Parking executor and parking device | |
| CN110143172B (en) | For adjusting actuators and vehicles of display terminals | |
| CN212529797U (en) | Double-input steering device | |
| KR20220088483A (en) | Clutch mechanism, steering system and automobile | |
| CN110056258B (en) | Clutch transmission and intelligent lock | |
| CN110316087B (en) | Vehicle and vehicle-mounted display terminal system | |
| CN107314058B (en) | Manual and electric clutch device for electric actuator | |
| CN102881478B (en) | Spring return type centrifugal clutch | |
| CN210016167U (en) | Special chassis car of cubical switchboard | |
| CN211685039U (en) | Parking control system and vehicle | |
| CN117704238A (en) | Rotary mechanism for display terminal and vehicle | |
| CN111071220B (en) | Parking control system and vehicle | |
| CN108413220A (en) | A kind of new road traffic monitor |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |