CN2709276Y - Electric booster steering driving device - Google Patents
Electric booster steering driving device Download PDFInfo
- Publication number
- CN2709276Y CN2709276Y CN 200420062036 CN200420062036U CN2709276Y CN 2709276 Y CN2709276 Y CN 2709276Y CN 200420062036 CN200420062036 CN 200420062036 CN 200420062036 U CN200420062036 U CN 200420062036U CN 2709276 Y CN2709276 Y CN 2709276Y
- Authority
- CN
- China
- Prior art keywords
- torsion bar
- output shaft
- driving device
- sliding sleeve
- electric booster
- 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.)
- Expired - Fee Related
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- Power Steering Mechanism (AREA)
Abstract
The utility model relates to an electric booster steering driving device, in particular to an electric booster steering driving device for automobile. The electric booster steering driving device comprises a torque sensor, an actuating mechanism and a mechanical steering column jacket unit assemblage. The utility model is characterized in that: through the tiny torque deformation tendency of the input shaft corresponding to the output shaft, the sliding bush is driven to slide on the torsion bar and the torque sensor connected with the sliding bush is correspondingly driven to move, and the produced displacement signal makes the electric unit assemblage drive the worm gear and the worm screw to transmit the power to the output shaft. The utility model has the advantages of simple structure, high efficiency and less energy consumption.
Description
Technical field: the utility model relates to a kind of automobile steering transmission linkage, particularly relates to electric boosted (EPS) steering transmission linkage of a kind of electronic vehicle control.
Technical background: along with world's development of electronic technology, the application of Eltec on automobile more and more widely, the electron steering steering swivel system has become the main flow direction of automobile steering system development, on automobile, greatly developed electric powered steering since the external the eighties, obtained sizable achievement, on minicar, van, be used widely.Domestic prosperous river the Big Dipper had been installed the electric powered steering of import first in 2000, thereby drove the exploitation heat of domestic electric powered steering, and existing till now partly universities and colleges and part enterprise are developing this kind product, all are in the trial-production development phase at present.
At present advanced electrohydraulic dynamic turns to (EI-IPS) though also can obtain satisfied power steering under various speed, and EHPS system architecture more complicated, price are more expensive, and efficient is low, energy consumption is big.In order to overcome above defective, the purpose of this utility model just provides a kind of Electric power-assisted steering transmission linkage.Promptly turning to increase by one torsion bar between input shaft and the output shaft, small torsional deflection by torsion bar, make torque sensor produce signal, this moment, control module judged according to torque signal and the vehicle speed signal collected, the control machine operation, slowing down to increase by worm and gear again is added on the output shaft after turning round, make to obtain a power steering moment of torsion that adapts with vehicle behavior on the output shaft, thus the Control of Automobile travel direction.This turns to common hydraulic power steering and compares, and has following advantage: efficient height, less energy consumption, returnability is good, environmental pollution is few, can work alone, road feel is good.
Summary of the invention: the purpose of this utility model is achieved in that Electric power-assisted steering transmission linkage is made up of to tubing string assembly, output shaft assembly input shaft, biography.It is characterized in that: the top at described input shaft is provided with torsion bar, and torsion bar is provided with some roads plug helix, and ball is housed in the groove; Be provided with a sliding sleeve in the outer ring of torsion bar, the inwall of sliding sleeve also is provided with corresponding plug helix, rolls in the plug helix that described ball can form between sliding sleeve inwall and torsion bar; End at described sliding sleeve is provided with torque sensor; Also be provided with motor assembly in biography on the tubing string assembly, also be provided with worm gear and worm screw in described motor assembly, described worm gear links to each other with output shaft by connecting device.The utlity model has simple in structure, productive costs is lower, and characteristics such as efficient is higher, less energy consumption, returnability are good.
Description of drawings: Fig. 1 is a structural representation of the present utility model
Fig. 2 is the cutaway view of A-A to motor assembly
In the drawings: 1, input shaft 2, torsion bar 3, torque sensor 4, worm gear 5, output shaft 6, sliding sleeve 7, ball 8, worm screw 9, motor assembly 10, column assy
The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing:
In diagram, Electric power-assisted steering transmission linkage is made up of to tubing string assembly 10, output shaft 5 parts input shaft 1, biography.It is characterized in that: be provided with torsion bar 2 on the top of described input shaft 1, torsion bar 2 is provided with some roads plug helix, and ball 7 is housed in the groove; Be provided with a sliding sleeve 6 in the outer ring of torsion bar 2, the inwall of sliding sleeve 6 also is provided with corresponding plug helix, rolls in the plug helix that described ball 7 can form between sliding sleeve 6 inwalls and torsion bar 2; End at described sliding sleeve 6 is provided with torque sensor 3; Also be provided with motor assembly 9 in biography on tubing string assembly 10, also be provided with worm gear 4 and worm screw 8 in described motor assembly 9, described worm gear 4 links to each other with output shaft 5 by connecting device.During concrete enforcement, input shaft 1 is by torsion bar 2, sliding sleeve 6, motor assembly 10 links to each other with output shaft 5, it is such haveing suffered principle of work: when the steering dish, between the input shaft 1 relative output shaft 5 small torsional deflection trend is arranged, the ball 7 that is contained in input shaft 1 groove also and then rotates, but because the relative anti-drag of output shaft 5 hinders effect, ball 7 can only roll along plug helix on the input shaft 1, thereby driving sliding sleeve 6 moves as straight line, the also accompany movement of the contact of torque sensor 3, like this, torque sensor 3 is just constantly measured the input torque signal on the input shaft 1, that is to say, with the conversion of the angle displacement of torsion bar 2 and zoom into the longitudinal travel of slide block, convert voltage signal to through torque sensor 3, this signal and vehicle speed signal are input to control unit simultaneously, control unit is determined the direction of current and the size of electrical motor according to these signals, and the power-assisted that electrical motor produces is decided with direction of current and size.This power-assisted is slowed down to increase by worm gear 4, worm screw 8 and is added on the output shaft 5 after turning round, and makes it to obtain a power steering moment of torsion that adapts with vehicle behavior.
Claims (2)
1, Electric power-assisted steering transmission linkage is made up of to tubing string assembly (10), output shaft (5) parts input shaft (1), biography, it is characterized in that: be provided with torsion bar (2) on the top of described input shaft (1), torsion bar (2) is provided with some roads plug helix, and ball (7) is housed in the groove; Be provided with a sliding sleeve (6) in the outer ring of torsion bar (2), the inwall of sliding sleeve (6) also is provided with corresponding plug helix, rolls in the plug helix that described ball (7) can form between sliding sleeve (6) inwall and torsion bar (2); End at described sliding sleeve (6) is provided with torque sensor (3).
2, Electric power-assisted steering transmission linkage according to claim 1, it is characterized in that: described biography also is provided with motor assembly (9) on tubing string assembly (10), also be provided with worm gear (4) and worm screw (8) in described motor assembly (9), described worm gear (4) links to each other with output shaft (5) by connecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062036 CN2709276Y (en) | 2004-06-19 | 2004-06-19 | Electric booster steering driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062036 CN2709276Y (en) | 2004-06-19 | 2004-06-19 | Electric booster steering driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709276Y true CN2709276Y (en) | 2005-07-13 |
Family
ID=34852027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420062036 Expired - Fee Related CN2709276Y (en) | 2004-06-19 | 2004-06-19 | Electric booster steering driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2709276Y (en) |
-
2004
- 2004-06-19 CN CN 200420062036 patent/CN2709276Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Golden Transmission Co., Ltd. Assignor: Jingjiang Geerdun Transmission Shaft Co., Ltd. Contract fulfillment period: 2009.4.10 to 2014.4.10 Contract record no.: 2009320000899 Denomination of utility model: Electric boosting steering transmission Granted publication date: 20050713 License type: Exclusive license Record date: 20090514 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.10 TO 2014.4.10; CHANGE OF CONTRACT Name of requester: JIANGSU GERDUN DRIVING CO., LTD. Effective date: 20090514 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050713 Termination date: 20100619 |