CN217575335U

CN217575335U - Novel steering transmission mechanism and automobile

Info

Publication number: CN217575335U
Application number: CN202220843210.7U
Authority: CN
Inventors: 卞荣花; 汪明朋; 陈新
Original assignee: Changzhou Vocational Institute of Mechatronic Technology
Current assignee: Changzhou Vocational Institute of Mechatronic Technology
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-10-14
Anticipated expiration: 2032-04-13

Abstract

The utility model provides a novel steering transmission mechanism and car belongs to the steering mechanism field. The problem that the traditional EPS system cannot realize complete decoupling of the steering wheel is solved. It includes the steering wheel, the touch screen, the simulator of feeling, gear box and gear drive mechanism, gear drive mechanism sets up in the gear box, the gear box includes gear box seat of honour and gear box lower cover, gear drive mechanism includes gear connection frame, lower gear output shaft, lower intermediate wheel, go up intermediate wheel and lower gear, steering wheel and last gear connection frame fixed connection, the gear box lower cover is fixed to on the automobile body, the gear box seat of honour links to each other with the touch screen, the touch screen sets up the intermediate position at the steering wheel. The utility model discloses the steering mechanism of steering wheel touch screen and hand force simulator has integrateed the side touch screen of touch screen, therefore the driver control is more convenient, and the hand force simulator can simulate out different driving styles for the driver when the initiative turns to can provide redundant steering function and steering angle.

Description

Novel steering transmission mechanism and automobile

Technical Field

The utility model belongs to the steering mechanism field especially relates to a novel steering transmission mechanism and car.

Background

The steering transmission mechanism is a transmission mechanism for transmitting a torsional moment and a rotation angle between a steering wheel and a front wheel steering gear. The hand force of the driver is amplified by the steering wheel and then transmitted to the front wheel for steering, so that the left turn or the right turn of the vehicle is realized.

With the development of the technology, the technology of the steering wheel with a display screen has started to be implemented on vehicles, and the display screen can display information concerned by a driver on the steering wheel, so that the driver is not distracted from accidents when turning around or operating the display screen during driving.

With the development of smart vehicles, the traditional EPS system cannot meet the new requirements of smart vehicles on steering systems, which is mainly reflected in that the traditional EPS is mainly dominated by people, and the smart vehicles hope to realize active steering by an ADAS system as much as possible. In addition, the traditional EPS system cannot realize the complete decoupling of the steering wheel, and the steering wheel rotates along with the steering wheel during active steering, so that the panic of a driver is easily caused, and the driver is further caused to intervene in the active steering to generate danger.

The conventional steering-by-wire system has some problems, such as incapability of ensuring stable and reliable wire transmission, inferior safety to mechanical transmission, need of arranging more than two motor actuators on a front axle, and much increased cost and arrangement space.

Disclosure of Invention

In view of this, the utility model aims at providing a novel steering transmission mechanism and car to solve the unable complete decoupling zero that realizes the steering wheel of traditional EPS system, the steering wheel rotates thereupon during the initiative turns to, arouses driver's panic easily, and then arouses driver's intervention initiative to turn to and produce dangerous problem.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a novel steering transmission mechanism comprises a steering wheel, a touch screen, a hand feeling simulator, a gear box and a gear transmission mechanism, wherein the gear transmission mechanism is arranged in the gear box, the gear box comprises an upper gear connecting frame, a lower gear output shaft, a lower middle wheel, an upper middle wheel and a lower gear, the steering wheel is fixedly connected with the upper gear connecting frame, the lower gear box cover is fixed on a vehicle body, the upper gear of the gear box is connected with the touch screen, the touch screen is arranged in the middle of the steering wheel, and the touch screen is used for realizing automatic driving mode selection;

the upper gear box seat comprises an upper annular cavity and a lower cavity, an upper gear connecting frame is rotatably arranged in the upper annular cavity of the upper gear box seat through a bearing, an upper middle wheel is also arranged in the upper annular cavity, an upper gear on the upper gear connecting frame is meshed with the upper middle wheel, both the lower gear and the lower middle wheel are arranged in a space enclosed by the lower cavity of the upper gear box seat and a lower gear box cover, the lower gear is arranged on the lower gear box cover, a lower gear output shaft is arranged on the lower gear, the lower gear output shaft penetrates through the lower gear box cover, the lower middle wheel is arranged right below the upper middle wheel, the lower middle wheel is meshed with the lower gear, when the lower middle wheel moves upwards and is combined with the upper middle wheel, a steering wheel rotates to drive an upper gear on the upper gear connecting frame to rotate, the upper gear transmits the motion to the lower gear through the upper middle wheel and the lower middle wheel, and then drives the lower gear output shaft to rotate, and the active steering, namely the driving mode of a driver is realized; when the lower middle wheel moves downwards and is separated from the upper middle wheel, the rotation of the steering wheel is not transmitted to the output shaft of the lower gear through the gear engagement, and the passive steering, namely the automatic driving mode, is realized;

the hand feeling simulator is arranged above the upper middle wheel and is coaxially arranged with the upper middle wheel, the hand feeling simulator is arranged on the upper seat of the gear box, and the hand feeling simulator is used for simulating different driving resistance modes;

at gear box seat of honour internally mounted hall sensor, at the inboard integrated magnetic encoder II of last gear connection frame, integrated magnetic encoder I in lower gear, hall sensor use with the cooperation of magnetic encoder I and magnetic encoder II, detect the corner of going up the gear and the corner of lower gear through hall sensor and magnetic encoder cooperation.

Furthermore, a plurality of upper meshing teeth are uniformly arranged on the bottom end face of the upper intermediate wheel, a plurality of lower meshing teeth matched with the upper meshing teeth are correspondingly uniformly arranged on the upper end face of the lower intermediate wheel, the lower intermediate wheel is arranged on an upper cover of the conical surface bearing, a lower cover of the conical surface bearing is in threaded connection with an output shaft of the motor, and when the output shaft of the motor rotates, the lower cover of the conical surface bearing is driven to move up and down so as to drive the lower intermediate wheel to move up and down so as to be combined with or separated from the upper intermediate wheel.

Furthermore, the touch screen comprises a main control screen and a side control screen, the side control screen is arranged at the right end of the touch screen, the side control screen is used for adjusting the content displayed by the main control screen by the right hand of a driver, and the main control screen is used for realizing the point touch activation and closing function.

Furthermore, the motor is arranged on the lower end face of the lower cover of the gear box, a through hole for accommodating the conical surface bearing is formed in the lower cover of the gear box, and a guide assembly for guiding the lower cover of the conical surface bearing to move is arranged in the through hole.

Furthermore, the upper gear connecting frame is of a cylindrical structure, the upper end face of the cylindrical structure is higher than the upper annular cavity, the upper end of the cylindrical structure is provided with an outer edge connected with a steering wheel, the upper gear is fixedly arranged at the lower end of the cylindrical structure, and the upper gear connecting frame are integrally formed and arranged.

Furthermore, a mounting seat connected with the touch screen is arranged in the center of the gear upper seat, and the mounting seat extends out of the upper end face of the upper gear connecting frame.

Furthermore, the upper middle wheel is connected with the hand feeling simulator through a shaft.

Furthermore, the gear upper seat is fixedly connected with the gear lower cover through a plurality of bolts, and the steering wheel is connected with the upper gear connecting frame through bolts.

Furthermore, the hand feeling simulator is a steering torque sensor.

According to another aspect of the present invention, there is provided an automobile, comprising a steering transmission mechanism, the steering transmission mechanism is the above steering transmission mechanism.

Compared with the prior art, a novel steering transmission mechanism's beneficial effect be:

(1) The utility model relates to an integrated steering wheel touch-control screen and hand force simulator's steering mechanism, the touch-control screen has integrateed the side touch-control screen, therefore the driver controls more conveniently, and the hand force simulator can simulate out different driving styles for the driver when initiatively turning to this steering mechanism can provide redundant function and the angle of turning to.

(2) When the steering wheel rotates, the touch screen is kept still, so that the operation of a driver is facilitated, and the side touch screen is integrated; meanwhile, the invention can realize the complete redundancy of the steering system, and the steering wheel and the wheels are completely separated during the active steering, but the driver can mechanically operate during the intervention of the driver, and the driver has complete dominance on the vehicle.

(3) The utility model discloses integrateed two corner sensor, can realize turning angle's mutual check when the driver controls, improved the security level of corner signal.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts:

fig. 1 is a schematic view of an overall structure of a novel steering transmission mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of the general structure of a novel steering transmission mechanism (with a steering wheel removed) according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a gear transmission mechanism of a novel steering transmission mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a novel steering transmission mechanism according to an embodiment of the present invention with the main control panel removed;

FIG. 5 is a schematic view of the arrangement of the upper gear connecting frame and the gear box;

FIG. 6 is a schematic layout diagram of a Hall sensor, a magnetic encoder I and a magnetic encoder II;

FIG. 7 is a schematic view of the gear assembly;

FIG. 8 is a schematic view of the gear train drive disengagement;

fig. 9 is a schematic structural view of the lower intermediate wheel.

Description of reference numerals:

1. a steering wheel; 2. a touch screen; 3. an upper gear connecting frame; 4. an upper seat of the gear box; 5. a lower cover of the gear box; 6. a lower gear output shaft; 7. a motor; 8. a lower intermediate wheel; 9. an upper intermediate wheel; 10. a hand feeling simulator; 11. a lower gear; 12. a Hall thruster; 13. a magnetic encoder I; 14. a magnetic encoder II; 15. an upper cover; 16. a lower cover; 17. a conical bearing needle roller; 18. an upper gear; 19. a conical bearing; 20. a lower meshing tooth; 21. and (6) side control of the screen.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 9, a novel steering transmission mechanism includes a steering wheel 1, a touch screen 2, a hand feeling simulator 10, a gear box and a gear transmission mechanism, the gear transmission mechanism is disposed in the gear box, the gear box includes a gear box upper seat 4 and a gear box lower cover 5, the gear transmission mechanism includes an upper gear connecting frame 3, a lower gear output shaft 6, an upper middle wheel 9 of a lower middle wheel 8 and a lower gear 11, the steering wheel 1 is fixedly connected with the upper gear connecting frame 3, the gear box lower cover 5 is fixed to a vehicle body, the gear box upper seat 4 is connected with the touch screen 2, the touch screen 2 is disposed in the middle of the steering wheel 1, and when the steering wheel 1 rotates, the touch screen 2 is suspended; the touch screen 2 is used for realizing automatic driving mode selection;

the upper gear box seat 4 comprises an upper annular cavity and a lower cavity, the upper gear connecting frame 3 is rotatably arranged in the upper annular cavity of the upper gear box seat 4 through a bearing, the upper intermediate wheel 9 is also arranged in the upper annular cavity, an upper gear 18 on the upper gear connecting frame 3 is meshed with the upper intermediate wheel 9, both the lower gear 11 and the lower intermediate wheel 8 are arranged in a space enclosed by the lower cavity of the upper gear box seat 4 and the lower gear box cover 5, the lower gear 11 is arranged on the lower gear box cover 5, the lower gear output shaft 6 is arranged on the lower gear 11, the lower gear output shaft 6 penetrates through the lower gear box cover 5, the lower intermediate wheel 8 is arranged right below the upper intermediate wheel 9, the lower intermediate wheel 8 is meshed with the lower gear 11, when the lower intermediate wheel 8 moves upwards and is combined with the upper intermediate wheel 9, the driving steering wheel 1 rotates to drive the upper gear 18 on the upper gear connecting frame 3 to rotate, the upper gear 18 transmits the motion to the lower gear 11 through the upper intermediate wheel 9 and the lower intermediate wheel 8, so as to drive the output shaft 6 to rotate, and realize a driver steering mode; when the lower middle wheel 8 moves downwards to be separated from the upper middle wheel 9, the steering wheel 1 rotates and is not transmitted to the lower gear output shaft 6 through gear engagement any more, and passive steering, namely an automatic driving mode, is realized; in the automatic driving mode, the output shaft of the lower gear is driven by the EPS;

the hand feeling simulator 10 is arranged above the upper middle wheel 9 and is coaxially arranged with the upper middle wheel 9, the hand feeling simulator 10 is arranged on the upper seat 4 of the gear box, and the hand feeling simulator 10 is used for simulating different driving resistance modes;

install hall sensor 12 in gear box upper bracket 4 internally mounted, at the inboard integrated magnetic encoder II 14 of last gear 18 link 3, integrated magnetic encoder I13 in lower gear 11, hall sensor 12 use with the cooperation of magnetic encoder I13 and magnetic encoder II 14, detect the corner of last gear 18 and the corner of lower gear 11 through hall sensor and magnetic encoder cooperation.

A plurality of upper meshing teeth are uniformly arranged on the bottom end surface of the upper intermediate wheel 9, a plurality of lower meshing teeth 20 matched with the upper meshing teeth are correspondingly uniformly arranged on the upper end surface of the lower intermediate wheel 8, the lower intermediate wheel 8 is arranged on an upper cover 15 of a conical surface bearing 19, a lower cover 16 of the conical surface bearing is in threaded connection with an output shaft of the motor 7, and when the output shaft of the motor 7 rotates, the lower cover 16 of the conical surface bearing is driven to move up and down so as to drive the lower intermediate wheel 8 to move up and down so as to be combined with or separated from the upper intermediate wheel 9; a plurality of cone bearing needle rollers 17 are arranged between the lower cover 16 and the upper cover 15.

The touch screen 2 comprises a main control screen and a side control screen 21, the side control screen 21 is arranged at the right end of the touch screen 2, the side control screen 21 is used for adjusting the content displayed by the main control screen by the right hand of a driver, and the main control screen is used for realizing the functions of activating and closing by point touch; the side control screen 21 realizes page turning or up and down movement.

The motor 7 is arranged on the lower end face of the gear box lower cover 5, a through hole for accommodating the conical surface bearing 19 is formed in the gear box lower cover 5, a guide component for guiding the lower cover 16 of the conical surface bearing 19 to move is arranged in the through hole, the guide component can be a groove formed in the inner wall of the through hole, and the groove is matched with a bulge on the outer surface of the lower cover 16.

The upper gear connecting frame 3 is of a cylindrical structure, the upper end face of the cylindrical structure is higher than the upper annular cavity, the upper end of the cylindrical structure is provided with an outer edge connected with the steering wheel 1, the upper gear 18 is fixedly arranged at the lower end of the cylindrical structure, and the upper gear 18 and the upper gear connecting frame 3 are integrally formed and arranged. The center of the gear upper seat is provided with a mounting seat connected with the touch screen 2, and the mounting seat extends out of the upper end face of the upper gear connecting frame 3 to be arranged.

The hand feeling simulator 10 is a steering torque sensor, is a simulation unit with a disc motor as a main load, and is specifically characterized in that an upper middle wheel 9 is connected with the hand feeling simulator 10 through a shaft: the shaft of the upper middle wheel 9 is connected with the pin shaft of the hand feeling simulator 10.

The gear box upper seat 4 is fixedly connected with the gear box lower cover 5 through a plurality of bolts. The steering wheel 1 is connected with the upper gear connecting frame 3 through bolts.

The motor 7 drives the cone bearing lower cover 16 to move up and down to realize the separation of the lower middle wheel 8 and the upper middle wheel 9, the transverse control of the vehicle is transferred to the active control of the vehicle by the control of a driver, and at the moment, the control hand feeling of the driver is realized by the hand feeling simulator 10, and multiple styles can be simulated. The Hall sensor 12 transmits the driving intention of the driver to the vehicle in real time, the control is transferred to the driver when the driver operates the steering wheel, the Hall sensor sends out the rotation angle and the rotation speed, whether the steering wheel is actively operated or not or is misoperated is judged according to the rotation angle and the rotation speed, and the control is transferred to the driver when the driver wants to operate the steering wheel.

The upper and lower intermediate wheels can be combined and can also be separated, when a driver operates manually, the upper and lower intermediate wheels are combined, the hand force of the driver is smoothly transmitted to the steering transmission shaft to drive the front wheel to rotate left and right, and when the upper and lower intermediate wheels are separated, the automatic driving mode steering function is realized by the vehicle.

The present application further provides an automobile, an embodiment of the automobile according to the present application includes a steering transmission mechanism, which is the above-mentioned steering transmission mechanism.

The embodiments of the present invention disclosed above are intended to be merely illustrative. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best understand the invention and its practical application.

Claims

1. A novel steering transmission mechanism is characterized in that: the automatic driving device comprises a steering wheel (1), a touch screen (2), a hand feeling simulator (10), a gear box and a gear transmission mechanism, wherein the gear transmission mechanism is arranged in the gear box, the gear box comprises a gear box upper seat (4) and a gear box lower cover (5), the gear transmission mechanism comprises an upper gear connecting frame (3), a lower gear output shaft (6), a lower middle wheel (8), an upper middle wheel (9) and a lower gear (11), the steering wheel (1) is fixedly connected with the upper gear connecting frame (3), the gear box lower cover (5) is fixed on a vehicle body, the gear box upper seat (4) is connected with the touch screen (2), the touch screen (2) is arranged in the middle of the steering wheel (1), and the touch screen (2) is used for realizing automatic driving mode selection;

the upper gear box seat (4) comprises an upper annular cavity and a lower cavity, the upper gear connecting frame (3) is rotatably arranged in the upper annular cavity of the upper gear box seat (4) through a bearing, the upper middle wheel (9) is also arranged in the upper annular cavity, an upper gear (18) on the upper gear connecting frame (3) is meshed with the upper middle wheel (9), the lower gear (11) and the lower intermediate wheel (8) are both arranged in a space enclosed by a lower cavity of the upper seat (4) of the gear box and a lower cover (5) of the gear box, the lower gear (11) is arranged on the lower cover (5) of the gear box, the lower gear output shaft (6) is arranged on the lower gear (11), the lower gear output shaft (6) passes through the lower cover (5) of the gear box, the lower middle wheel (8) is arranged right below the upper middle wheel (9), the lower intermediate wheel (8) is meshed with the lower gear (11), when the lower middle wheel (8) moves upwards and is combined with the upper middle wheel (9), the steering wheel (1) rotates to drive the upper gear (18) on the upper gear connecting frame (3) to rotate, the upper gear (18) transmits the motion to the lower gear (11) through the upper middle wheel (9) and the lower middle wheel (8), thereby driving the lower gear output shaft (6) to rotate and realizing the active steering of the driver, namely an active driving mode; when the lower intermediate wheel (8) moves downwards and is separated from the upper intermediate wheel (9), the steering wheel (1) rotates and is not transmitted to the lower gear output shaft (6) through gear engagement any more, and the passive steering, namely the automatic driving mode is realized;

the hand feeling simulator (10) is arranged above the upper middle wheel (9) and is coaxially arranged with the upper middle wheel (9), the hand feeling simulator (10) is installed on the upper seat (4) of the gear box, and the hand feeling simulator (10) is used for simulating different driving resistance modes;

at gear box seat of honour (4) internally mounted hall sensor (12), at the inboard integrated magnetic encoder II (14) of last gear (18) link (3), integrated magnetic encoder I (13) in lower gear (11), hall sensor (12) use with the cooperation of magnetic encoder I (13) and magnetic encoder II (14), detect the corner of upper gear (18) and the corner of lower gear (11) through the cooperation of hall sensor and magnetic encoder.

2. The novel steering transmission mechanism according to claim 1, wherein: a plurality of upper meshing teeth are uniformly arranged on the bottom end face of the upper intermediate wheel (9), a plurality of lower meshing teeth (20) matched with the upper meshing teeth are correspondingly and uniformly arranged on the upper end face of the lower intermediate wheel (8), the lower intermediate wheel (8) is arranged on an upper cover (15) of a conical surface bearing (19), a lower cover (16) of the conical surface bearing is in threaded connection with an output shaft of a motor (7), and when an output shaft of the motor (7) rotates, the lower cover (16) of the conical surface bearing is driven to move up and down, so that the lower intermediate wheel (8) is driven to move up and down, and is combined with or separated from the upper intermediate wheel (9).

3. The novel steering transmission mechanism according to claim 1, wherein: the touch screen (2) comprises a main control screen and a side control screen (21), the side control screen (21) is arranged at the right end of the touch screen (2), the side control screen (21) is used for adjusting the content displayed by the main control screen by the right hand of a driver, and the main control screen is used for realizing point touch activation and closing functions.

4. The novel steering transmission mechanism according to claim 2, wherein: the motor (7) is arranged on the lower end face of the lower gear box cover (5), a through hole for accommodating the conical surface bearing (19) is formed in the lower gear box cover (5), and a guide assembly for guiding the lower cover (16) of the conical surface bearing (19) to move is arranged in the through hole.

5. The novel steering transmission mechanism according to claim 1, wherein: the upper gear connecting frame (3) is of a cylindrical structure, the upper end face of the cylindrical structure is higher than the upper annular cavity, the upper end of the cylindrical structure is provided with an outer edge connected with the steering wheel (1), the upper gear (18) is fixedly arranged at the lower end of the cylindrical structure, and the upper gear (18) and the upper gear connecting frame (3) are integrally formed and arranged.

6. The novel steering transmission mechanism according to claim 1, wherein: the center of the gear upper seat is provided with a mounting seat connected with the touch screen (2), and the mounting seat extends out of the upper end face of the upper gear connecting frame (3).

7. The novel steering transmission mechanism according to claim 1, wherein: the upper middle wheel (9) is connected with the hand feeling simulator (10) through a shaft.

8. The novel steering transmission mechanism according to claim 1, wherein: the steering wheel is characterized in that the gear box upper seat (4) is fixedly connected with the gear box lower cover (5) through a plurality of bolts, and the steering wheel (1) is connected with the upper gear connecting frame (3) through bolts.

9. The novel steering transmission mechanism according to claim 1, wherein: the hand feeling simulator (10) is a steering torque sensor.

10. An automobile, characterized in that: comprising a steering gear according to any of claims 1-9.