CN211336162U

CN211336162U - Novel automobile steering wheel

Info

Publication number: CN211336162U
Application number: CN202020046278.3U
Authority: CN
Inventors: 童严; 姚义林; 郭健; 杜佳芝; 刘晓海
Original assignee: Sichuan Vocational and Technical College Communications
Current assignee: Sichuan Vocational and Technical College Communications
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-08-25
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a novel automobile steering wheel, which comprises a torque transmission component, a resistance signal transmission component, a aligning moment component, a limiting component and a microprocessor; the torque transmission assembly comprises a steering wheel, a steering shaft and a spiral piece, the steering shaft is fixedly connected with the steering wheel, the spiral piece is sleeved on the steering shaft, the resistance signal transmission assembly is connected with the spiral piece, the aligning torque assembly is installed on the steering shaft, the limiting assembly is installed at the tail end of the steering shaft, the resistance assembly of the resistance signal transmission assembly is connected with a signal input end of the microprocessor, and a driving element of the aligning torque assembly is connected with a signal output end of the microprocessor. The utility model discloses a steering wheel can realize returning positive moment and order about driver still to have good way sense under the road surface condition of difference, and whole process steering wheel does not all need driver to provide too much strength, can slow down the excessive dependence of steer-by-wire system to electrical system greatly, thoroughly breaks away from the dependence to heavy traditional steering column.

Description

Novel automobile steering wheel

Technical Field

The utility model relates to a steering wheel technical field, concretely relates to novel steering wheel.

Background

At present, automobile steering wheels on the market are classified from the steering system, and the steering wheels of mechanical steering systems and power steering systems are different in size. The common steering wheel as a basic part of a steering system has the following functions and characteristics: firstly, the acting force of the hand of a driver is transmitted to a steering gear to achieve the effect that the vehicle steers according to the intention of the driver; secondly, the moment of the hand acting force of the driver is increased, so that the steering system is more convenient, labor-saving, efficient and quick to operate; thirdly, the driving experience, comfort and convenience are enhanced through a steering wheel auxiliary part liquid crystal display, a functional key, a steering wheel sleeve and the like; fourthly, increasing the safety protection of drivers such as an air bag; and fifthly, adopting a mechanical transmission chain to transmit acting force to achieve the steering function.

Along with social development and scientific and technological progress, driving experience feels when the navigating mate is controlled the vehicle and tends to the light convenient of operation gradually, and the function more integrates and humanized orientation develops. The steering wheel assembly of the mechanical system transmitting torque has several disadvantages: firstly, a mechanical system is complex when a steering wheel conducts torque, and the design of a mechanical transmission chain is not simple and wastes vehicle space; secondly, complicated mechanical structure makes future maintenance and maintenance more loaded down with trivial details, if: a mechanical hydraulic power steering system; thirdly, when the steering wheel of the power-assisted steering system is used for realizing the functions, the driver needs to provide hand force as a source of steering torque, and the power steering system needs a part of acting force for the hands of the driver and then provides a part of assistance by the engine or the motor. In the steering wheel system for transmitting torque to the mechanical system or the mechanical system, the steering wheel needs a driver to provide certain force, so that the driver is easy to fatigue in use, and inevitable safety accidents and property loss are easy to cause.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel automobile steering wheel can slow down the excessive dependence of steer-by-wire system to electric system greatly, thoroughly breaks away from the dependence to heavy traditional steering column, has reasonable passive safety function to solve the technical problem who mentions in the background art.

The purpose of the utility model is realized through the following technical scheme:

a novel automobile steering wheel comprises a torque transmission assembly, a resistance signal transmission assembly, a aligning torque assembly, a limiting assembly and a microprocessor;

the torque transmission subassembly includes steering wheel, steering spindle and flight, the steering spindle with steering wheel fixed connection, the flight cover is established on the steering spindle, resistance signal conveys the subassembly with the flight is connected, return positive moment unit mount and be in on the steering spindle, spacing unit mount is in the end of steering spindle, resistance signal conveys the resistance subassembly of subassembly with microprocessor's signal input part is connected, return positive moment subassembly's drive element with microprocessor's signal output part is connected.

Further, the torque transfer assembly further comprises a bracket connected with the steering shaft by a disc end bearing.

Furthermore, the resistance signal transmission assembly is mounted on the support and comprises a feeler lever bearing, a feeler lever, a bearing seat, two dust covers, two guide rail pieces and a resistance piece, the two guide rail pieces are bridged between the two dust covers, a strip-shaped groove matched with the feeler lever is formed between the two guide rail pieces, the feeler lever bearing is in tangential fit connection with the spiral piece, and the resistance piece is connected with a signal input end of the microprocessor;

the feeler lever is arranged on the bearing seat in a penetrating way, the feeler lever bearing is arranged at the top end of the feeler lever, the bottom of the feeler lever is sleeved with a limiting spring, the tail end of the limiting spring is connected with a feeler block, and the feeler block is connected with the resistance card in a sliding way;

a group of T-shaped guide wheels are mounted on a group of side walls of the bearing seat through guide wheel connecting rods, two groups of U-shaped guide wheels are symmetrically mounted on the bottom wall of the bearing seat through guide wheel connecting rods, and sliding grooves matched with the T-shaped guide wheels are formed in the guide rail pieces.

Further, the guide wheel connecting rod and the bearing seat are of an integrally formed structure.

Furthermore, the aligning torque assembly comprises two aligning torque motors, a large aligning torque helical gear and two aligning torque helical gears, the large aligning torque helical gear is fixedly sleeved on the steering shaft, the two aligning torque helical gears are respectively connected with output shafts of the two aligning torque motors, the aligning torque helical gears are meshed with the large aligning torque helical gear, a mounting seat is mounted on the support, mounting holes and symmetrically arranged mounting grooves are formed in the mounting seat, the two aligning torque motors are respectively mounted in the two mounting grooves of the mounting seat, and the aligning torque motors are connected with a signal output end of the microprocessor.

Furthermore, the limiting assembly comprises a limiting pinion and a limiting sector gear, the steering shaft is installed in the installation hole through a limiting end bearing, the limiting pinion is sleeved on the tail end of the steering shaft, the limiting sector gear is installed on the installation seat through a limiting sector gear bearing, and the limiting pinion is meshed with the limiting sector gear.

The utility model has the advantages that:

(1) the utility model discloses a novel automobile steering wheel, the steering wheel is cut into from hand power, torque transmission subassembly begins work from middle starting point, the spiral piece on the steering spindle is rotatory, the spiral piece drives resistance signal transmission subassembly work, convert the torque transmission and transmit into horizontal moment, resistance signal transmission subassembly's resistance subassembly produces resistance signal and with signal transmission microprocessor storage, microprocessor gives drive element different signals according to different road conditions and produces the torque, amplify and transmit the aligning moment to the steering wheel of being connected with the steering spindle through the gentle "less strong" aligning moment subassembly of transmission, thereby realize aligning moment and drive the driver and still have good road feel under different road surface conditions, the whole process steering wheel all need not the driver provide too much strength, can slow down steer-by-wire system too much dependence to electric system greatly, completely gets rid of the dependence on the heavy and heavy traditional steering column.

(2) The novel automobile steering wheel has the advantages of strong fault tolerance, high safety performance and excellent economy, so that the novel automobile steering wheel has wide application prospect, the structure of each part is simple, the design freedom of the whole automobile is improved, the arrangement of a control system is convenient, and compared with the existing steering wheel without mechanical connection, the novel automobile steering wheel can easily switch left-hand steering into right-hand steering; the rotation efficiency is high, the response time is short, and the microprocessor receives various data commands and can immediately provide steering power to rotate the wheels under the condition of instantaneous steering.

(3) The utility model discloses a novel automobile steering wheel can improve driving characteristic, strengthens maneuverability, and the ratio of turning to based on speed of a motor vehicle, traction control and other relevant parameters can realize constantly changing in real time like the ratio of steering wheel corner and wheel corner, and when driving at low speed, the ratio of turning to is low, can reduce the angle that the steering wheel rotated when turning or parkking, and when driving at high speed, the ratio of turning to grow, can obtain better straight line driving condition; compared with the existing steering wheel, the steering wheel has the advantages that a steering column and a steering gear are omitted, and the improvement on the automobile collision safety and the whole automobile active safety is facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of the novel automobile steering wheel of the present invention;

fig. 2 is a schematic structural diagram of the torque transmission assembly of the present invention;

fig. 3 is a schematic structural diagram of the resistance signal transmission assembly according to the present invention;

fig. 4 is a schematic structural diagram of the aligning torque assembly of the present invention;

fig. 5 is a schematic structural diagram of the limiting assembly of the present invention;

fig. 6 is a schematic view of the installation structure among the torque transmission assembly, the resistance signal transmission assembly and the aligning torque assembly of the present invention;

in the figure, 1-torque transmission component, 101-steering wheel, 102-steering shaft, 103-spiral plate, 104-bracket, 105-disc end bearing, 106-limit end bearing, 2-resistance signal transmission component, 201-feeler lever bearing, 202-feeler lever, 203-guide plate, 204-bearing seat, 205-guide wheel connecting rod, 206-feeler block, 207-limit spring, 208-T-profile guide wheel, 209-U-profile guide wheel, 210-resistance plate, 211-dust cover, 212-sliding groove, 3-aligning moment component, 301-aligning moment motor, 302-aligning moment big helical gear, 303-aligning moment small helical gear, 304-mounting seat, 305-mounting hole, 306-mounting groove, 4-limit component, 401-limit pinion, 402-limit sector gear, 403-limit sector gear bearing, 5-microprocessor.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-6, the present invention provides a technical solution:

referring to fig. 1-2, a novel automobile steering wheel 101 includes a torque transmission assembly 1, a resistance signal transmission assembly 2, a aligning torque assembly 3, a limiting assembly 4 and a microprocessor 5;

the torque transmission assembly 1 comprises a steering wheel 101, a steering shaft 102 and a spiral piece 103, the steering shaft 102 is fixedly connected with the steering wheel 101, the spiral piece 103 is sleeved on the steering shaft 102, the resistance signal transmission assembly 2 is connected with the spiral piece 103, the aligning torque assembly 3 is installed on the steering shaft 102, the limiting assembly 4 is installed at the tail end of the steering shaft 102, the resistance assembly of the resistance signal transmission assembly 2 is connected with a signal input end of the microprocessor 5, and a driving element of the aligning torque assembly 3 is connected with a signal output end of the microprocessor 5.

When the steering wheel 101 of the utility model is manually switched on, the torque transmission component 1 starts to work from the middle starting point, the spiral sheet 103 on the steering shaft 102 rotates, the spiral sheet 103 drives the resistance signal transmission component 2 to work, the torque transmission is converted and transmitted into horizontal torque, the resistance signal transmission component 2 generates resistance signals and transmits the signals to the microprocessor 5 for storage, the microprocessor 5 gives different signals to the driving element according to different road conditions to generate torque, the correcting torque component 3 with mild transmission and weak tooth feeling amplifies the signals and transmits the correcting torque to the steering wheel 101 connected with the steering shaft 102, thereby realizing that the correcting torque drives the driver to have good road feeling under different road conditions, the steering wheel 101 does not need the driver to provide strength in the whole process, the over-drive-by-wire of the steering system to the electric system can be greatly slowed down, completely gets rid of the dependence on the heavy and heavy traditional steering column.

Referring to fig. 1, the torque transmission assembly 1 further includes a bracket 104, and the bracket 104 is connected to the steering shaft 102 through a disc end bearing 105.

Referring to fig. 3, the resistance signal transmission assembly 2 is mounted on the bracket 104, the resistance signal transmission assembly 2 includes a feeler lever bearing 201, a feeler lever 202, a bearing seat 204, two dust covers 211, two guide rails 203 and a resistance sheet 210, the two guide rails 203 are bridged between the two dust covers 211, a strip-shaped groove matched with the feeler lever 202 is formed between the two guide rails 203, the feeler lever bearing 201 is in tangential fit connection with the spiral sheet 103, and the resistance sheet 210 is connected with a signal input end of the microprocessor 5;

the feeler lever 202 is arranged on the bearing seat 204 in a penetrating manner, the feeler lever bearing 201 is arranged at the top end of the feeler lever 202, the bottom of the feeler lever 202 is sleeved with a limiting spring 207, the tail end of the limiting spring 207 is connected with a feeler 206, and the feeler 206 is connected with the resistor disc 210 in a sliding manner;

a group of T-shaped guide wheels 208 are mounted on one group of side walls of the bearing seat 204 through guide wheel connecting rods 205, two groups of U-shaped guide wheels 209 are symmetrically mounted on the bottom wall of the bearing seat 204 through the guide wheel connecting rods 205, and sliding grooves 212 matched with the T-shaped guide wheels 208 are formed in the guide plate 203.

Referring to fig. 2, the guide wheel connecting rod 205 and the bearing seat 204 are integrally formed.

The utility model discloses feeler lever bearing 201 and the tangent cooperation of flight 103 of resistance signal transmission subassembly 2 are connected, and when flight 103 rotated, feeler lever 202 drove bearing frame 204 and changes torque transmission and transmit for horizontal moment, and guide rail piece 203 plays the effect of the degree of freedom of supporting and restriction bearing frame 204, and feeler block 206 sliding friction produces resistance signal and transmits resistance signal to microprocessor 5 on resistance card 210, microprocessor 5 can adopt the ECU treater.

Referring to fig. 4, the aligning torque assembly 3 includes two aligning torque motors 301, a large aligning torque helical gear 302 and two aligning torque helical gears 303, the large aligning torque helical gear 302 is fixedly sleeved on the steering shaft 102, the two aligning torque helical gears 303 are respectively connected with output shafts of the two aligning torque motors 301, the aligning torque helical gears 303 are engaged with the large aligning torque helical gear 302, the bracket 104 is provided with a mounting seat 304, the mounting seat 304 is provided with mounting holes 305 and symmetrically arranged mounting grooves 306, the two aligning torque motors 301 are respectively mounted in the two mounting grooves 306 of the mounting seat 304, and the aligning torque motors 301 are connected with signal output ends of the microprocessor 5.

The utility model discloses the centering torque motor 301 of aligning torque subassembly 3 starts the back, drive centering torque beveled wheel 303 and rotate, centering torque beveled wheel 303 drives the big helical wheel 302 of aligning torque on the steering spindle 102 and rotates, the steering spindle 102 also can follow the big helical wheel 302 synchronous rotation of aligning torque, consequently, aligning torque subassembly 3 can realize enlargeing and transmit centering torque to the steering wheel 101 of being connected with steering spindle 102, aligning torque makes the navigating mate still have good road feel under the road surface condition of difference.

Referring to fig. 5 to 6, the limiting assembly 4 includes a limiting pinion 401 and a limiting pinion 401, the steering shaft 102 is mounted in the mounting hole 305 through a limiting end bearing 106, the limiting pinion 401 is sleeved on the end of the steering shaft 102, the limiting sector 402 is mounted on the mounting seat 304 through a limiting sector 402 bearing, and the limiting pinion 401 is engaged with the limiting sector 402.

The utility model discloses steering shaft 102 synchronous rotation can be followed to spacing pinion 401 of spacing subassembly 4, complete turned angle is 180, thereby it rotates to drive spacing pinion 401, the drive ratio of spacing pinion 401 and spacing sector tooth 402 is 10/31, spacing pinion 401 is 10 teeth, spacing sector tooth 402 is 31 teeth, spacing pinion 401 and spacing sector tooth 402 use a set of gear pair to realize spacingly, when steering shaft 102 changes extreme position, spacing pinion 401 and spacing sector tooth 402 cooperation realize spacingly, make steering wheel 101 stall.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A novel automobile steering wheel is characterized in that: the device comprises a torque transmission assembly (1), a resistance signal transmission assembly (2), a correcting moment assembly (3), a limiting assembly (4) and a microprocessor (5);

the torque transmission assembly (1) comprises a steering wheel (101), a steering shaft (102) and a spiral piece (103), the steering shaft (102) is fixedly connected with the steering wheel (101), the spiral piece (103) is sleeved on the steering shaft (102), the resistance signal transmission assembly (2) is connected with the spiral piece (103), the aligning torque assembly (3) is installed on the steering shaft (102), the limiting assembly (4) is installed at the tail end of the steering shaft (102), the resistance assembly of the resistance signal transmission assembly (2) is connected with a signal input end of the microprocessor (5), and a driving element of the aligning torque assembly (3) is connected with a signal output end of the microprocessor (5).

2. The new automotive steering wheel according to claim 1, characterized in that: the torque transmission assembly (1) further comprises a bracket (104), the bracket (104) being connected to the steering shaft (102) by means of a disc end bearing (105).

3. The new automotive steering wheel according to claim 2, characterized in that: the resistance signal transmission assembly (2) is installed on the support (104), the resistance signal transmission assembly (2) comprises a feeler lever bearing (201), a feeler lever (202), a bearing seat (204), two dust covers (211), two guide rail pieces (203) and a resistance piece (210), the two guide rail pieces (203) are bridged between the two dust covers (211), a strip-shaped groove matched with the feeler lever (202) is formed between the two guide rail pieces (203), the feeler lever bearing (201) is in tangential fit connection with the spiral piece (103), and the resistance piece (210) is connected with a signal input end of the microprocessor (5);

the feeler lever (202) is arranged on the bearing seat (204) in a penetrating manner, the feeler lever bearing (201) is arranged at the top end of the feeler lever (202), the bottom of the feeler lever (202) is sleeved with a limiting spring (207), the tail end of the limiting spring (207) is connected with a contact block (206), and the contact block (206) is connected with the resistance chip (210) in a sliding manner;

a group of T-shaped guide wheels (208) are mounted on a group of side walls of the bearing seat (204) through guide wheel connecting rods (205), two groups of U-shaped guide wheels (209) are symmetrically mounted on the bottom wall of the bearing seat (204) through the guide wheel connecting rods (205), and sliding grooves (212) matched with the T-shaped guide wheels (208) are formed in the guide rail sheets (203).

4. The new automotive steering wheel according to claim 3, characterized in that: the guide wheel connecting rod (205) and the bearing seat (204) are of an integrally formed structure.

5. The new automotive steering wheel according to claim 2, characterized in that: the aligning torque component (3) comprises two aligning torque motors (301), a large aligning torque helical gear (302) and two small aligning torque helical gears (303), the large aligning moment helical gear (302) is fixedly sleeved on the steering shaft (102), the two aligning moment helical gears (303) are respectively connected with output shafts of the two aligning moment motors (301), the small righting moment helical gear (303) is meshed with the large righting moment helical gear (302), the bracket (104) is provided with a mounting seat (304), the mounting seat (304) is provided with a mounting hole (305) and mounting grooves (306) which are symmetrically arranged, the two aligning torque motors (301) are respectively mounted in the two mounting grooves (306) of the mounting seat (304), the aligning torque motor (301) is connected with a signal output end of the microprocessor (5).

6. The new automotive steering wheel according to claim 5, characterized in that: the limiting assembly (4) comprises a limiting pinion (401) and limiting sector teeth (402), the steering shaft (102) is mounted in the mounting hole (305) through a limiting end bearing (106), the limiting pinion (401) is sleeved at the tail end of the steering shaft (102), the limiting sector teeth (402) are mounted on the mounting seat (304) through a limiting sector tooth bearing (403), and the limiting pinion (401) is meshed with the limiting sector teeth (402).