CN205203105U - Electricelectric moves power assisted steering ware - Google Patents
Electricelectric moves power assisted steering ware Download PDFInfo
- Publication number
- CN205203105U CN205203105U CN201521093376.8U CN201521093376U CN205203105U CN 205203105 U CN205203105 U CN 205203105U CN 201521093376 U CN201521093376 U CN 201521093376U CN 205203105 U CN205203105 U CN 205203105U
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- steering
- steering gear
- gear housing
- assist motor
- output shaft
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Abstract
The utility model relates to an electricelectric moves power assisted steering ware, it includes steering control system (1) and power -assisted steering system (2), power -assisted steering system (2) construct (8) and steering gear output shaft (21) including helping hand machine controller (3), helping hand motor (4), multistage planetary reducer, helping hand machine controller (3) both ends be connected with steering control system (1) and helping hand motor (4) respectively, the input that multistage planetary reducer constructs (8) is connected to the output of helping hand motor (4), multistage planetary reducer constructs the output of (8) and is connected with steering gear output shaft (21), steering gear output shaft (21) still are connected with steering control system (1). The utility model provides a limitation of present electronic power assisted steering ware in the application has been solved to the electronic power assisted steering ware of exportable big moment of torsion, this steering gear, in having filled, the unable blank of using electricelectric moves power assisted steering ware of heavy passenger -cargo carriage.
Description
Technical field
The utility model relates to automobile steering device technology field, particularly a kind of pure electric booster steering device.
Background technology
Nowadays, electronlmobil has been the developing direction in epoch, and electric booster steering device has also become the developing direction of deflector industry.And electric booster steering device in the market mainly still can only be used for the pinion and-rack axle assisted electric deflector of small passenger car, the commercial vehicle/comm..vehicles such as pure electric bus, new forms of energy motorcoach, heavy motor vehicle and various passenger-cargo automobile are still had to hydraulic power steering gear, and the pure electric booster steering device of large output torque can be provided at home and abroad to be also a blank.
Compare with hydraulic power-assist steering system, electric boosting steering system is without hydraulic efficiency gear, and do not have the parts such as the oil pump required for hydraulic efficiency pressure system, oil pipe, pressure flow hybrid control valve, petrol storage tank, number of parts is few, arrangement convenience, lightweight.The more important thing is automobile in the process of moving power steering need change according to operating mode; Because when running at high speed, the traverse resistance of tire is little, and steering handwheel becomes light, is difficult to the sensation catching road surface, also easily causes and turn to too sensitive and make automobile wayward; So suitably power-assisted will be reduced when high speed, even need to provide certain anti-power-assisted, the good manipulation of vehicle could be realized; And the necessary smoothly transition of this change, only have and adopt electric powered steering just can better realize.In addition, electric booster steering device is without " no load losses " and leak of liquid loss, and under various driving conditions, electric boosting steering system all can save energy about 80% than hydraulic power-assist steering system.
In sum, electric boosting steering system can improve the drive ability of automobile, again can economize energy, environmental protect.If can provide a kind of electric direction varying device of large output torque, market demand must be considerable; If there is the electric direction varying device new product being applicable to commercial vehicle/comm..vehicle of technology maturation, that will be applied rapidly.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provides a kind of electric booster steering device of exportable high pulling torque.This deflector solves the limitation of current electric booster steering device in application, allow Medium or severe type passenger and freight car also have energy-efficient, turn to light, manipulation stability better electric direction varying device to select.
The purpose of this utility model is achieved through the following technical solutions: a kind of pure electric booster steering device, it comprises steering control system and to unify steering boost system, described steering boost system comprises assist motor controller, assist motor, multistage planet speed reduction gearing and deflector output shaft, the input end of described assist motor controller is connected with steering control system, the mouth of assist motor controller is connected with the input end of assist motor, the mouth of assist motor connects the input end of multistage planet speed reduction gearing, the mouth of multistage planet speed reduction gearing is connected with deflector output shaft, deflector output shaft is also connected with steering control system.Assist motor can select sinusoidal waveform rare-earth permanent-magnetic synchronous assist motor.
Preferably, described multistage planet speed reduction gearing comprises 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 deflector output shaft are connected in series successively, described high-speed set planetary gear speed reducing mechanism and low speed group planetary gear speed reducing mechanism comprise two-stage planetary gear speed reducing mechanism respectively, every grade of planetary gear speed reducing mechanism comprises sun wheel respectively, satellite gear and pinion carrier, described satellite gear is all arranged in pinion carrier by bearing A, the pinion carrier of adjacent upper class is fixedly connected with the sun wheel of adjacent next stage, be positioned at sun wheel to be foremost fixedly connected with the mouth of assist motor, the pinion carrier being positioned at rearmost end is fixedly connected with deflector output shaft, described high-speed set planetary gear speed reducing mechanism and low speed group planetary gear speed reducing mechanism are fixedly mounted on the inside of steering gear housing A and steering gear housing B respectively by gear ring A and gear ring B, steering gear housing A and steering gear housing B is fastened and connected, assist motor is fixed on steering gear housing A, deflector output shaft is arranged on steering gear housing B by bearing B.
Preferably, the outside of described bearing B is also provided with outside framework oil seal A, and described outside framework oil seal A is arranged between steering gear housing B and deflector output shaft.
Preferably, bearing C is provided with between described steering gear housing B and deflector output shaft.
Preferably, described steering control system comprises turbine and worm decelerator, steering gear input shaft, twiot arm and torque sensor, described deflector output shaft coordinates the center being arranged on worm gear, one end of described steering gear input shaft coordinates with worm screw installs, the two ends of twiot arm are fixedly mounted in the cavity of steering gear input shaft and worm screw respectively, described torque sensor is arranged on the outside of steering gear input shaft and worm screw, described torque sensor is also connected with assist motor controller, described worm screw two ends are arranged in steering gear housing B respectively by bearings D and bearing E cooperation, described steering gear input shaft is arranged on steering gear housing top cover by bearing F cooperation, steering gear housing top cover fastens and is arranged on steering gear housing B.
Preferably, the outside of described bearings D is also provided with locking plug screw, and it is inner that described locking plug screw cooperation is arranged on steering gear housing B, is provided with outside framework oil seal B between locking plug screw and worm screw.Cycle surface locking plug screw being loaded steering gear housing and bearings D is fitted, and makes worm screw relative to the flexible rotating that can ensure again worm screw while steering gear housing B axial limiting.
Preferably, described steering gear housing B and the junction of steering gear housing top cover are provided with lead collar, and torque sensor is connected with assist motor controller by data line, and data line is drawn by lead collar.
Preferably, described twiot arm two ends are fixedly connected with worm screw with steering gear input shaft respectively by pin or key.
Preferably, described bearings D and bearing E are angular contact ball bearing.
The utility model has the following advantages:
1, unique, novel, reasonable in design, the advantage that combines planetary gear speed reducing mechanism and turbine and worm decelerator of the utility model structure: in deflector, power steering and course changing control adopt two kinds of multi-form speed reduction gearings, with separate two drive paths by exported moment of torsion combined action on deflector output shaft.Particularly the output torque of assist motor is turned round by multistage planet speed reduction gearing deceleration increasing by the axle stretch end of assist motor, moment of torsion is delivered to and turns on output shaft; And the hand-power that turns to of bearing circle is delivered to worm screw by steering gear input shaft, twiot arm, then be delivered to by worm gear and turn on output shaft.The advantage such as it is very large that the planetary gear speed reducing mechanism adopted has high driving efficiency (single-stage is 0.97 ~ 0.99), high rigidity, high precision (single-stage can be accomplished within 1 point), long service life, has higher moment of torsion/volume ratio, output torque can do; Turbine and worm decelerator has compact conformation, single-stage speed reducing than the advantage such as large, and the design adopts unique rational in infrastructure advantage that make use of two kinds of speed reduction gearings.
2, steering boost system adopts multistage planet speed reduction gearing, have lightweight, volume is little, driving efficiency is high, operate steadily, shock resistance and the advantage such as vibration ability is strong: steering assist motor transmits torque to the main output torque (multistage planet speed reduction gearing driving efficiency can reach about 0.9) of deflector output shaft as deflector by the planetary gear speed reducing mechanism of high driving efficiency, energy-conserving and environment-protective more compared with traditional pinion and-rack electric direction varying device, select more low power assist motor just can meet the servo-steering of automobile and initiatively just return.And the planetary gear speed reducing mechanism in deflector has unique power dividing and rotation axis motion characteristics, on the one hand, each satellite gear is distributed on around center gear shares load jointly, therefore the load that each gear teeth are born is little, adopts less module of gear just can transmit comparatively high pulling torque; On the other hand, due to the symmetry of planetary gear speed reducing mechanism, the antagonistic force acted in center gear and pinion carrier bearing can balance mutually, the radial force of bearing is very little, thus stable movement, the ability of shock resistance and vibration is strong, is suitable as the transmission device of deflector.
3, the bearing circle hand-power that turns to of steering control system adopt turbine and worm decelerator control that direction of transfer dish inputs, the turning that the less rotational angle of bearing circle completes vehicle can be realized: the reduction ratio of electric power-assisted steering device worm and gear of the present utility model is free to select, so can realize the turning that the less rotational angle of bearing circle completes vehicle, chaufeur can drive commercial visitor, goods cart as driving sedan.And the transmission of steering boost system and steering control system two unit is separate, so the conversion worm gear of control system and the reduction ratio of worm screw can not have influence on the moment of torsion transmission of steering boost system; And traditional circulating ball type power-assisted steering device has to increase the transmitting ratio of deflector actuating unit in order to reach required output torque, the number of total coils of bearing circle input shaft is caused to increase.
4, steering assist motor selects sinusoidal waveform rare-earth permanent-magnetic synchronous assist motor, the advantages such as this assist motor has low-vibration noise, efficiency is high, moment of starting is large, square stationarity is good, control accuracy is high, compact conformation, are applicable to the assist motor making electric booster steering device very much.Its adjustment speed ratio is large, and adjusting speed accuracy is high, easily realizes permanent torque and controls, dynamic response is fast, and overload capacity is strong, and reliability is high again, also have weak magnetism speed expansion ability, can realize overspeed, combined with above-mentioned multistage planet speed reduction gearing is exactly that one can be rated as perfect pure electric booster steering device.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-steering control system, 2-steering boost system, 3-assist motor controller, 4-assist motor, 5-sun wheel, 6-satellite gear, 7-pinion carrier, 8-multistage planet speed reduction gearing, 9-gear ring A, 10-high-speed set planetary gear speed reducing mechanism, 11-steering gear housing A, 12-steering gear housing B, 13-low speed group planetary gear speed reducing mechanism, 14-gear ring B, 15-bearing A, 16-worm screw, 17-worm gear, 18-bearing C, 19-bearing B, 20-outside framework oil seal A, 21-deflector output shaft, 22-bearings D, 23-bearing E, 24-locks plug screw, 25-outside framework oil seal B, 26-torque sensor, 27-bearing F, 28-twiot arm, 29-steering gear input shaft, 30-steering gear housing top cover, 31-lead collar.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of pure electric booster steering device, it comprises steering control system 1 and steering boost system 2.Described steering boost system 2 comprises assist motor controller 3, assist motor 4, multistage planet speed reduction gearing 8 and deflector output shaft 21.
In the utility model, steering boost system 2 and steering control system 1 adopt two kinds of multi-form speed reduction gearings, with separate two drive paths by exported moment of torsion combined action on deflector output shaft 21.Particularly the output torque of assist motor 4 is turned round by multistage planet speed reduction gearing 8 increasing of slowing down by the axle stretch end of assist motor 4, and moment of torsion is delivered on deflector output shaft 21; And the hand-power that turns to of bearing circle is delivered to worm screw 16 by steering gear input shaft 29, twiot arm 28, then be delivered to by worm gear 17 and turn on output shaft 21.
Particularly, the speed reduction gearing that steering boost system 2 adopts is multistage planet speed reduction gearing 8.Described multistage planet speed reduction gearing 8 comprises high-speed set planetary gear speed reducing mechanism 10 and low speed group planetary gear speed reducing mechanism 13; High-speed set planetary gear speed reducing mechanism 10 and low speed group planetary gear speed reducing mechanism 13 are fixedly mounted on the inside of steering gear housing A11 and steering gear housing B12 respectively by gear ring A9 and gear ring B14.Steering gear housing A11 and steering gear housing B12 is fastened and connected and forms the body skin of deflector.Assist motor 4, high-speed set planetary gear speed reducing mechanism 10, low speed group planetary gear speed reducing mechanism 13 and deflector output shaft 21 are connected in series successively, and the input end of assist motor 4 is also connected with assist motor controller 3; Assist motor 4 is fixed on steering gear housing A11; Deflector output shaft 21 is arranged on steering gear housing B12 by bearing B19, the outside of bearing B19 is also provided with outside framework oil seal A20, outside framework oil seal A20 is arranged between steering gear housing B12 and deflector output shaft 21, is provided with bearing C18 between steering gear housing B12 and deflector output shaft 21.
Described high-speed set planetary gear speed reducing mechanism 10 and low speed group planetary gear speed reducing mechanism 13 comprise two-stage planetary gear speed reducing mechanism respectively, and every grade of planetary gear speed reducing mechanism comprises sun wheel 5, satellite gear 6 and pinion carrier 7 respectively; Described satellite gear 6 is all arranged in pinion carrier 7 by bearing A15, the pinion carrier 7 of adjacent upper class is fixedly connected with the sun wheel 5 of adjacent next stage, the sun wheel 5 be positioned at foremost is fixedly connected with the mouth of assist motor 4, and the pinion carrier 7 being positioned at rearmost end is fixedly connected with deflector output shaft 21.
Particularly, the speed reduction gearing that steering control system 1 adopts is turbine and worm decelerator, and described steering control system 1 comprises turbine and worm decelerator, steering gear input shaft 29, twiot arm 28 and torque sensor 26;
Described deflector output shaft 21 coordinates the center being arranged on worm gear 17, one end of steering gear input shaft 29 coordinates with worm screw 16 installs, the two ends of twiot arm 28 are fixedly mounted on respectively by pin or key in the cavity of steering gear input shaft 29 and worm screw 16, the arranged outside of steering gear input shaft 29 and worm screw 16 has torque sensor 26, torque sensor 26 is connected with assist motor controller 3 by data line, and data line is drawn by the lead collar 31 being arranged on steering gear housing B12 and steering gear housing top cover 30 junction.Worm screw 16 two ends are arranged in steering gear housing B12 respectively by bearings D 22 and bearing E23 cooperation, bearings D 22 and bearing E23 are angular contact ball bearing, the outside of bearings D 22 is also provided with locking plug screw 24, it is inner that the cooperation of locking plug screw 24 is arranged on steering gear housing B12, is provided with outside framework oil seal B25 between locking plug screw 24 and worm screw 16.Steering gear input shaft 29 is arranged on steering gear housing top cover 30 by bearing F27 cooperation, and steering gear housing top cover 30 fastens and is arranged on steering gear housing B12.
When carrying out handling maneuver, the steering load change suffered by deflector output shaft 21 feeds back to twiot arm 28 with on steering gear input shaft 29 by turbine and worm decelerator.The hand-power that turns to of bearing circle drives steering gear input shaft 29 rotation to make twiot arm 28 produce appropriate distortion according to the size of cornering resistance, torque sensor 26 is distortion size, the torsional direction of twiot arm 28, and the information such as the rotational angle of steering gear input shaft 29 pass to assist motor controller 3.Assist motor controller 3 controls steering assist motor 4 according to certain rules according to the sensor signal received, vehicle speed signal etc., makes assist motor 4 can provide desirable power-assisted for deflector controls turning to of vehicle under the different speed of a motor vehicle and different corners.
Claims (9)
1. a pure electric booster steering device, it is characterized in that: it comprises steering control system (1) and steering boost system (2), described steering boost system (2) comprises assist motor controller (3), assist motor (4), multistage planet speed reduction gearing (8) and deflector output shaft (21), the input end of described assist motor controller (3) is connected with steering control system (1), the mouth of assist motor controller (3) is connected with the input end of assist motor (4), the mouth of assist motor (4) connects the input end of multistage planet speed reduction gearing (8), the mouth of multistage planet speed reduction gearing (8) is connected with deflector output shaft (21), deflector output shaft (21) is also connected with steering control system (1).
2. the pure electric booster steering device of one according to claim 1, it is characterized in that: described multistage planet speed reduction gearing (8) comprises high-speed set planetary gear speed reducing mechanism (10) and low speed group planetary gear speed reducing mechanism (13), described high-speed set planetary gear speed reducing mechanism (10) and low speed group planetary gear speed reducing mechanism (13) comprise two-stage planetary gear speed reducing mechanism respectively, every grade of planetary gear speed reducing mechanism comprises sun wheel (5) respectively, satellite gear (6) and pinion carrier (7), described satellite gear (6) is all by bearing A(15) be arranged in pinion carrier (7), the pinion carrier (7) of adjacent upper class is fixedly connected with the sun wheel (5) of adjacent next stage, the sun wheel (5) be positioned at foremost is fixedly connected with the mouth of assist motor (4), the pinion carrier (7) being positioned at rearmost end is fixedly connected with deflector output shaft (21), described high-speed set planetary gear speed reducing mechanism (10) and low speed group planetary gear speed reducing mechanism (13) are respectively by gear ring A(9) and gear ring B(14) be fixedly mounted on steering gear housing A(11) and steering gear housing B(12) inside, steering gear housing A(11) and steering gear housing B(12) be fastened and connected, assist motor (4) is fixed on steering gear housing A(11) on, deflector output shaft (21) is by bearing B(19) be arranged on steering gear housing B(12) on.
3. the pure electric booster steering device of one according to claim 2, it is characterized in that: described bearing B(19) outside be also provided with outside framework oil seal A(20), described outside framework oil seal A(20) be arranged on steering gear housing B(12) and deflector output shaft (21) between.
4. the pure electric booster steering device of one according to claim 2, is characterized in that: described steering gear housing B(12) and deflector output shaft (21) between be provided with bearing C(18).
5. the pure electric booster steering device of one according to claim 1, it is characterized in that: described steering control system (1) comprises turbine and worm decelerator, steering gear input shaft (29), twiot arm (28) and torque sensor (26), described deflector output shaft (21) coordinates the center being arranged on worm gear (17), one end of described steering gear input shaft (29) coordinates with worm screw (16) installs, the two ends of twiot arm (28) are fixedly mounted in the cavity of steering gear input shaft (29) and worm screw (16) respectively, described torque sensor (26) is arranged on the outside of steering gear input shaft (29) and worm screw (16), described torque sensor (26) is also connected with assist motor controller (3), described worm screw (16) two ends are respectively by bearings D (22) and bearing E(23) coordinate be arranged on steering gear housing B(12) in, described steering gear input shaft (29) is by bearing F(27) coordinate be arranged on steering gear housing top cover (30), steering gear housing top cover (30) fastens and is arranged on steering gear housing B(12) on.
6. the pure electric booster steering device of one according to claim 5, it is characterized in that: the outside of described bearings D (22) is also provided with locking plug screw (24), described locking plug screw (24) cooperation is arranged on steering gear housing B(12) inner, be provided with outside framework oil seal B(25 between locking plug screw (24) and worm screw (16)).
7. the pure electric booster steering device of one according to claim 5, it is characterized in that: described steering gear housing B(12) junction of steering gear housing top cover (30) is provided with lead collar (31), torque sensor (26) is connected with assist motor controller (3) by data line, and data line is drawn by lead collar (31).
8. the pure electric booster steering device of one according to claim 5, is characterized in that: described twiot arm (28) two ends are fixedly connected with worm screw (16) with steering gear input shaft (29) respectively by pin or key.
9. the pure electric booster steering device of one according to claim 5, is characterized in that: described bearings D (22) and bearing E(23) be angular contact ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521093376.8U CN205203105U (en) | 2015-12-25 | 2015-12-25 | Electricelectric moves power assisted steering ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521093376.8U CN205203105U (en) | 2015-12-25 | 2015-12-25 | Electricelectric moves power assisted steering ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205203105U true CN205203105U (en) | 2016-05-04 |
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ID=55840837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521093376.8U Expired - Fee Related CN205203105U (en) | 2015-12-25 | 2015-12-25 | Electricelectric moves power assisted steering ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205203105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438254A (en) * | 2015-12-25 | 2016-03-30 | 杨亮终 | Pure-electric-power-assisted steering gear |
-
2015
- 2015-12-25 CN CN201521093376.8U patent/CN205203105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438254A (en) * | 2015-12-25 | 2016-03-30 | 杨亮终 | Pure-electric-power-assisted steering gear |
| CN105438254B (en) * | 2015-12-25 | 2018-04-27 | 杨亮终 | A kind of pure electric vehicle power-assisted steering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20191225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |