CN107128358A - Automobile EPS electric power-assisted steering column assembly lines - Google Patents
Automobile EPS electric power-assisted steering column assembly lines Download PDFInfo
- Publication number
- CN107128358A CN107128358A CN201710259530.1A CN201710259530A CN107128358A CN 107128358 A CN107128358 A CN 107128358A CN 201710259530 A CN201710259530 A CN 201710259530A CN 107128358 A CN107128358 A CN 107128358A
- Authority
- CN
- China
- Prior art keywords
- steering
- steering gear
- gear
- assist motor
- output shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/04—Steering gears mechanical of worm type
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The present invention relates to automobile EPS electric power-assisted steering column assembly lines, it includes steering control system (1) and steering boost system (2), described steering boost system (2) includes assist motor controller (3), assist motor (4), multistage planet reducing gear (8) and steering gear output shaft (21), described assist motor controller (3) two ends are connected with steering control system (1) and assist motor (4) respectively, the input of the output end connection multistage planet reducing gear (8) of assist motor (4), the output end of multistage planet reducing gear (8) is connected with steering gear output shaft (21), steering gear output shaft (21) is also connected with steering control system (1).The invention provides a kind of electric booster steering device of exportable high pulling torque, the steering gear solves current electric booster steering device and is applying upper limitation, and the blank of pure electric booster steering device can not be used by having filled up Medium or severe type passenger-cargo carriage.
Description
Technical field
The present invention relates to automobile steering device technology field, specially automobile EPS electric power-assisted steering columns assembly line.
Background technology
Nowadays, electric automobile has been the developing direction in epoch, and electric booster steering device also turns into the hair of steering gear industry
Open up direction.And the pinion and-rack axle that electric booster steering device in the market is mainly still only used for small passenger car is helped
Power electric direction varying device, the commercial car such as pure electric bus, new energy motor bus, heavy-duty car and various passenger-cargo automobile is still had to
With hydraulic power steering gear, the pure electric booster steering device that can provide big output torque is also at home and abroad a blank.Same hydraulic pressure
Servo steering system is compared, electric boosting steering system without hydraulic means, without the oil pump required for hydraulic system, oil pipe,
The parts such as pressure flow hybrid control valve, oil storage tank, number of parts is few, and arrangement is just, lightweight.More importantly automobile is being run over
Power steering needs to be changed according to operating mode in journey；Because when running at high speed, the lateral resistance of tire is small, and steering wheel becomes
It is light, it is difficult to catch the sensation on road surface, also easily cause and turn to excessively sensitive and be difficult to control automobile；So will in high speed
Appropriate reduction power-assisted, or even need to provide certain anti-power-assisted, the good manipulation of vehicle could be realized；And this change must be smoothed out
Transition, only could preferably be realized using electric powered steering.In addition, electric booster steering device is without " parasitic loss " and liquid leakage
Loss, under various driving conditions, electric boosting steering system can save energy 80% or so than hydraulic power-assist steering system.To sum up
Described, electric boosting steering system can improve the runnability of automobile, and the energy can be saved again, improves environment.If can carry
For a kind of electric direction varying device of big output torque, market demand must be considerable；If have technology maturation is applied to commercialization
The electric direction varying device new product of car, that will can obtain rapid popularization and application.
The content of the invention
It is an object of the invention to the shortcoming for overcoming prior art, there is provided a kind of electric power steering of exportable high pulling torque
Device.The steering gear solves current electric booster steering device and is applying upper limitation, allows Medium or severe type passenger-cargo carriage also to have efficient section
Light, the more preferable electric direction varying device of manipulation stability, can be turned to select.The purpose of the present invention is come real by the following technical programs
It is existing：Automobile EPS electric power-assisted steering column assembly lines, it includes steering control system and steering boost system, and described turns
Include assist motor controller, assist motor, multistage planet reducing gear and steering gear output shaft to force aid system, described helps
The input of force motor controller is connected with steering control system, the output end of assist motor controller and the input of assist motor
End connection, the output end of assist motor connects the input of multistage planet reducing gear, the output end of multistage planet reducing gear
It is connected with steering gear output shaft, steering gear output shaft is also connected with steering control system.Assist motor can select sine wave rare earth
Permanent-magnet synchronous assist motor.Preferably, described multistage planet reducing gear includes high-speed set planetary gear speed reducing mechanism and low speed group
Planetary gear speed reducing mechanism, described high-speed set planetary gear speed reducing mechanism, low speed group planetary gear speed reducing mechanism and steering gear output shaft is gone here and there successively
Connect, described high-speed set planetary gear speed reducing mechanism and low speed group planetary gear speed reducing mechanism include two-stage planetary gear speed reducing mechanism, every grade respectively
Planetary gear speed reducing mechanism includes sun gear, planetary gear and planet carrier respectively, and described planetary gear installs planet carrier by bearing A
On, the planet carrier of adjacent upper level is fixedly connected with the sun gear of adjacent next stage, positioned at sun gear foremost and power-assisted electricity
The output end of machine is fixedly connected, and the planet carrier positioned at rearmost end is fixedly connected with steering gear output shaft, described high-speed set planet
Reducing gear and low speed group planetary gear speed reducing mechanism are fixedly mounted on steering gear housing A and steering gear by gear ring A and gear ring B respectively
Housing B inside, steering gear housing A is fastened and connected with steering gear housing B, and assist motor is fixed on steering gear housing A, is turned to
Device output shaft is arranged on steering gear housing B by bearing B.Preferably, it is additionally provided with outside framework oil seal on the outside of described bearing B
A, described outside framework oil seal A is arranged between steering gear housing B and steering gear output shaft.Preferably, described steering gear housing B
Bearing C is provided between steering gear output shaft.Preferably, described steering control system include turbine and worm decelerator,
Steering gear input shaft, twiot arm and torque sensor, described steering gear output shaft coordinate installed in the center of worm gear, institute
The one end for the steering gear input shaft stated coordinates with worm screw installs, and the two ends of twiot arm are respectively and fixedly installed to steering gear input shaft
In the cavity of worm screw, described torque sensor is arranged on the outside of steering gear input shaft and worm screw, described torque sensing
Device is also connected with assist motor controller, and described worm screw two ends are coordinated by bearings D and bearing E respectively is arranged on steering gear housing
In body B, described steering gear input shaft is coordinated by bearing F to be arranged on steering gear housing top cover, and steering gear housing top cover is fastened and is arranged on
On steering gear housing B.Preferably, locking plug screw is additionally provided with the outside of described bearings D, described locking plug screw, which coordinates, to be installed
Inside steering gear housing B, outside framework oil seal B is provided between locking plug screw and worm screw.Locking plug screw is loaded steering gear housing
Fitted with the cycle surface of bearings D, make worm screw relative to steering gear housing B axle to it is spacing while can guarantee that the flexible of worm screw again
Rotate.Preferably, the junction of described steering gear housing B and steering gear housing top cover is provided with lead collar, and torque sensor passes through
Data wire is connected with assist motor controller, and data wire is drawn by lead collar.Preferably, described twiot arm two ends difference
It is fixedly connected by pin or key with steering gear input shaft and worm screw.Preferably, described bearings D and bearing E are angular contact ball
Bearing.The present invention has advantages below：1st, unique structure of the present invention, novelty, it is reasonable in design, combine planetary gear speed reducing mechanism and snail
The advantage of worm and gear reducing gear：Power steering uses two different form of reducing gear with course changing control in steering gear, with
Two separate drive paths are by the moment of torsion collective effect exported on steering gear output shaft.Particularly assist motor
Output torque by assist motor axle stretch end by multistage planet reducing gear slow down increase turn round, moment of torsion be delivered to steering output
On axle；And the steering hand-power of steering wheel is to be delivered to worm screw by steering gear input shaft, twiot arm, then it is delivered to by worm gear
Turn on output shaft.The planetary gear speed reducing mechanism used has high transmission efficiency (single-stage is 0.97~0.99), high rigidity, high-precision
Degree (single-stage can accomplish within 1 point), service life length, there are higher moment of torsion/volume ratio, output torque to be made big etc. excellent
Point；Turbine and worm decelerator has the advantages that compact conformation, single-stage speed reducing than big, and the design is using unique rational in infrastructure
It make use of the advantage of two kinds of reducing gears.
2nd, steering boost system uses multistage planet reducing gear, and with lightweight, small volume, transmission efficiency is high, transport
The advantages of capable steady, shock resistance and strong vibration ability：Steering assist motor is transmitted by the planetary gear speed reducing mechanism of high transmission efficiency
To steering gear output shaft, as the main output torque of steering gear, (multistage planet reducing gear transmission efficiency can reach that 0.9 is left to moment of torsion
It is right), the more energy-conserving and environment-protective compared with traditional pinion and-rack electric direction varying device just can be full from more low power assist motor
The power-assisted steering and active of sufficient automobile are returned just.And the planetary gear speed reducing mechanism in steering gear has power dividing and the shaft line of uniqueness
Kinetic characteristic, on the one hand, each planetary gear is distributed on around centre wheel shares load jointly, therefore the load for being born each gear teeth
It is small, using less module with regard to high torque can be transmitted；On the other hand, due to the symmetry of planetary gear speed reducing mechanism, effect
Can mutually it be balanced with the reaction force in planet carrier bearing in centre wheel, the radial force very little of bearing, thus stable movement, resist
The ability of shock and vibration is strong, is suitable as the transmission mechanism of steering gear.3rd, steering control system uses worm-gear speed reducer
Structure carrys out the steering wheel hand-power for the control steering that direction of transfer disk is inputted, and can realize that steering wheel completes vehicle with smaller rotational angle
Turning：The speed reducing ratio of the electric power-assisted steering device worm and gear of the present invention be free to selection, so can realization side
The turning of vehicle is completed with smaller rotational angle to disk, it is big that driver can drive commercial objective, goods as driving sedan
Car.And the transmission of two units of steering boost system and steering control system is separate, so the worm gear of conversion control system
The moment of torsion for not interfering with steering boost system with the speed reducing ratio of worm screw is transmitted；And traditional circulating ball type power-assisted steering device in order to
The gearratio that required output torque has to increase steering gear executing agency can be reached, causes total circle of steering wheel input shaft
Number increase.
4th, steering assist motor selects sine wave rare-earth permanent-magnetic synchronous assist motor, and there is this assist motor low vibration to make an uproar
Sound, efficiency high, starting torque are big, square stationarity is good, control accuracy is high, compact conformation the advantages of, be especially suitable for making electric boosted
The assist motor of steering gear.It adjusts speed than big, adjusting speed accuracy height, easily realizes permanent torque control, dynamic response is fast, overload capacity
By force, reliability is again high, also with weak magnetism speed expansion ability, and overspeed can be achieved, combined with above-mentioned multistage planet reducing gear
It is exactly that one kind can be rated as perfect pure electric booster steering device.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
In figure：1- steering control systems, 2- steering boost systems, 3- assist motor controllers, 4- assist motors, the 5- sun
Wheel, 6- planetary gears, 7- planet carriers, 8- multistage planet reducing gears, 9- gear rings A, 10- high-speed set planetary gear speed reducing mechanism, 11- is turned to
Device housing A, 12- steering gear housing B, 13- low speed group planetary gear speed reducing mechanism, 14- gear rings B, 15- bearing A, 16- worm screw, 17- snails
Wheel, 18- bearings C, 19- bearing B, 20- outside framework oil seal A, 21- steering gear output shaft, 22- bearings Ds, 23- bearings E, 24- locking screw
Plug, 25- outside framework oil seals B, 26- torque sensor, 27- bearings F, 28- twiot arm, 29- steering gear input shafts, 30- steering gears
Upper lid, 31- lead collars.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to following institute
State.As shown in figure 1, automobile EPS electric power-assisted steering column assembly lines, it includes steering control system 1 and power steering system
System 2.Described steering boost system 2 includes assist motor controller 3, assist motor 4, multistage planet reducing gear 8 and turned to
Device output shaft 21.Steering boost system 2 uses two different form of reducing gear with steering control system 1 in the present invention, with
Two separate drive paths are by the moment of torsion collective effect exported on steering gear output shaft 21.Particularly power-assisted is electric
The output torque of machine 4 slows down to increase by the axle stretch end of assist motor 4 by multistage planet reducing gear 8 to be turned round, and moment of torsion is delivered to and turned
To on device output shaft 21；And the steering hand-power of steering wheel is to be delivered to worm screw 16 by steering gear input shaft 29, twiot arm 28,
It is delivered to again by worm gear 17 on steering output shaft 21.Specifically, the reducing gear that steering boost system 2 is used is series of rows
Star reducing gear 8.Described multistage planet reducing gear 8 includes high-speed set planetary gear speed reducing mechanism 10 and low speed group planetary reducer
Structure 13；High-speed set planetary gear speed reducing mechanism 10 and low speed group planetary gear speed reducing mechanism 13 are fixed by gear ring A9 and gear ring B14 respectively pacifies
Mounted in steering gear housing A11 and steering gear housing B12 inside.Steering gear housing A11 and steering gear housing B12 are fastened and connected shape
Into the shell body of steering gear.Assist motor 4, high-speed set planetary gear speed reducing mechanism 10, low speed group planetary gear speed reducing mechanism 13 and steering gear
Output shaft 21 is sequentially connected in series, and the input of assist motor 4 is also connected with assist motor controller 3；Assist motor 4 is fixed on steering
On device housing A11；Steering gear output shaft 21 is arranged on steering gear housing B12 by bearing B19, and bearing B19 outside is also set
Outside framework oil seal A20 is equipped with, outside framework oil seal A20 is arranged between steering gear housing B12 and steering gear output shaft 21, steering gear housing
Bearing C18 is provided between B12 and steering gear output shaft 21.Described high-speed set planetary gear speed reducing mechanism 10 and low speed group planet subtracts
Fast mechanism 13 includes two-stage planetary gear speed reducing mechanism respectively, and every grade of planetary gear speed reducing mechanism includes sun gear 5, planetary gear 6 and row respectively
Carrier 7；Described planetary gear 6 by bearing A15 install planet carrier 7 on, the planet carrier 7 of adjacent upper level with it is adjacent next
The sun gear 5 of level is fixedly connected, and is fixedly connected positioned at sun gear 5 foremost with the output end of assist motor 4, positioned at last
The planet carrier 7 at end is fixedly connected with steering gear output shaft 21.Specifically, the reducing gear that steering control system 1 is used is snail
Worm and gear reducing gear, described steering control system 1 includes turbine and worm decelerator, steering gear input shaft 29, elasticity and turned round
Bar 28 and torque sensor 26；Described steering gear output shaft 21 coordinates installed in the center of worm gear 17, steering gear input shaft
29 one end coordinates with worm screw 16 installs, and the two ends of twiot arm 28 are fixedly mounted on steering gear input shaft by pin or key respectively
29 and worm screw 16 cavity in, the outside of steering gear input shaft 29 and worm screw 16 is provided with torque sensor 26, torque sensor
26 are connected by data wire with assist motor controller 3, and data wire is by being arranged on steering gear housing B12 and steering gear housing top cover 30
The lead collar 31 of junction is drawn.The two ends of worm screw 16 are coordinated by bearings D 22 and bearing E23 respectively is arranged on steering gear housing
In B12, bearings D 22 and bearing E23 are angular contact ball bearing, and the outside of bearings D 22 is additionally provided with locking plug screw 24, locking screw
Plug 24, which coordinates, to be arranged on inside steering gear housing B12, and outside framework oil seal B25 is provided between locking plug screw 24 and worm screw 16.Turn to
Device input shaft 29 is coordinated by bearing F27 to be arranged on steering gear housing top cover 30, and steering gear housing top cover 30, which is fastened, is arranged on steering gear housing
On body B12.When carrying out handling maneuver, the steering load change suffered by steering gear output shaft 21 can pass through turbine and worm decelerator
Feed back on twiot arm 28 and steering gear input shaft 29.The steering hand-power of steering wheel drives the rotation of steering gear input shaft 29 to make bullet
Property torsion bar 28 appropriate deformation is produced according to the size of steering drag, torque sensor 26 the deformation size of twiot arm 28,
Torsional direction, the information transmission such as the rotational angle of steering gear input shaft 29 is to assist motor controller 3.Assist motor controller 3
Steering assist motor 4 is controlled according to sensor signal, GES received etc. according to certain rules, makes to help assist motor 4 to exist
For steering gear the steering of vehicle can be controlled to provide preferable power-assisted under different speed and different corners.
Claims (2)
1. automobile EPS electric power-assisted steering column assembly lines, it is characterised in that：It includes steering control system (1) and turned to
Force aid system (2), described steering boost system (2) includes assist motor controller (3), assist motor (4), multistage planet and subtracted
Fast mechanism (8) and steering gear output shaft (21), input and the steering control system (1) of described assist motor controller (3)
Connection, the output end of assist motor controller (3) is connected with the input of assist motor (4), and the output end of assist motor (4) connects
The input of multistage planet reducing gear (8) is connect, output end and the steering gear output shaft (21) of multistage planet reducing gear (8) connect
Connect, steering gear output shaft (21) is also connected with steering control system (1).
2. automobile EPS electric power-assisted steering column assembly lines according to claim 1, it is characterised in that：Described turns
Include turbine and worm decelerator, steering gear input shaft (29), twiot arm (28) and torque sensor to control system (1)
(26), described steering gear output shaft (21) coordinates installed in the center of worm gear (17), described steering gear input shaft (29)
One end and worm screw (16) coordinate and install, the two ends of twiot arm (28) are respectively and fixedly installed to steering gear input shaft (29) and snail
In the cavity of bar (16), described torque sensor (26) is arranged on the outside of steering gear input shaft (29) and worm screw (16), institute
The torque sensor (26) stated also is connected with assist motor controller (3), and described worm screw (16) two ends pass through bearings D respectively
(22) coordinate with bearing E (23) in steering gear housing B (12), described steering gear input shaft (29) passes through bearing F
(27) coordinate and be arranged on steering gear housing top cover (30), steering gear housing top cover (30), which is fastened, to be arranged on steering gear housing B (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259530.1A CN107128358A (en) | 2017-04-20 | 2017-04-20 | Automobile EPS electric power-assisted steering column assembly lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259530.1A CN107128358A (en) | 2017-04-20 | 2017-04-20 | Automobile EPS electric power-assisted steering column assembly lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107128358A true CN107128358A (en) | 2017-09-05 |
Family
ID=59715274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710259530.1A Pending CN107128358A (en) | 2017-04-20 | 2017-04-20 | Automobile EPS electric power-assisted steering column assembly lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107128358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891480A (en) * | 2018-09-10 | 2018-11-27 | 安徽安凯汽车股份有限公司 | A kind of electro-hydraulic power-assisted coupling steering system of fuel oil car |
| CN114585551A (en) * | 2019-10-16 | 2022-06-03 | 克诺尔商用车制动***有限公司 | Steering gear for an electromechanical steering system of a vehicle and electromechanical steering system for a vehicle |
-
2017
- 2017-04-20 CN CN201710259530.1A patent/CN107128358A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891480A (en) * | 2018-09-10 | 2018-11-27 | 安徽安凯汽车股份有限公司 | A kind of electro-hydraulic power-assisted coupling steering system of fuel oil car |
| CN108891480B (en) * | 2018-09-10 | 2024-03-12 | 安徽安凯汽车股份有限公司 | Electro-hydraulic power-assisted coupling steering system of fuel passenger car |
| CN114585551A (en) * | 2019-10-16 | 2022-06-03 | 克诺尔商用车制动***有限公司 | Steering gear for an electromechanical steering system of a vehicle and electromechanical steering system for a vehicle |
| CN114585551B (en) * | 2019-10-16 | 2024-01-30 | 克诺尔商用车制动***有限公司 | Steering gear of electromechanical steering system of vehicle and electromechanical steering system of vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170905 |
|
| WD01 | Invention patent application deemed withdrawn after publication |