CN201217446Y - Steering mechanism with variable-gear-ratio of automobile - Google Patents
Steering mechanism with variable-gear-ratio of automobile Download PDFInfo
- Publication number
- CN201217446Y CN201217446Y CNU2008200705549U CN200820070554U CN201217446Y CN 201217446 Y CN201217446 Y CN 201217446Y CN U2008200705549 U CNU2008200705549 U CN U2008200705549U CN 200820070554 U CN200820070554 U CN 200820070554U CN 201217446 Y CN201217446 Y CN 201217446Y
- Authority
- CN
- China
- Prior art keywords
- steering
- gear
- gliding mass
- articulated shaft
- connecting rod
- 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
Links
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Steering Controls (AREA)
Abstract
Disclosed is a transmission ratio variable vehicle steering mechanism, which can control the steering of the vehicle and change the transmission ratio of a gear to a gear rack in the steering process. The steering mechanism comprises an upper steering transmission shaft, a lower steering transmission shaft, an upper universal joint, a lower universal joint, an external thread connecting rod and a gear through sequential connection. The surface of the gear which is smaller in the middle and larger at both ends is a hyperbolic-type surface. The internal thread of an internal thread slider is meshed with the external thread connecting rod. During the steering process, the external thread connecting rod transmits the torque sent by the lower universal joint to the gear and makes axial movement with the gear, in the internal thread slider; the change of the meshing point between the gear and the gear rack enables the transmission ratio of the gear to the gear rack to be increased regardless of leftward steering or rightward steering, so that the steering, especially wide-angle steering can be convenient and quick.
Description
Affiliated technical field
The utility model relates to the variable-speed ratio automotive steering structure that a kind of mechanism, especially its transmitting ratio that motor turning is controlled that can directly be subjected to automobile driver operation can change with steering angle.
Background technology
At present, known pinion and-rack automotive steering structure is to be formed by structures such as steering handwheel, steering shaft, steering inner articulated shaft, universal-joint, deflectors.Chaufeur is controlled turning to of automobile by the direct steering dish, and its torque passes to deflector by transmission shaft.Gear and the transmitting ratio between the tooth bar in the deflector are certain values.Meet when needing to change the bend of wide-angle, chaufeur must turn over steering handwheel a lot of angles and it could be realized.It can not be finished in a short period of time,, also might cause traffic accident, give and drive to bring very big inconvenience because of finishing the steering angle that needs at short notice if the speed of a motor vehicle is higher.
Summary of the invention
In order to overcome the deficiency that existing automotive steering structure can not realize that automobile can not flipper turn when the wide-angle bend, the utility model provides a kind of variable-speed ratio automotive steering structure, but this variable-speed ratio automotive steering structure can not only provide the mechanism of a direct control motor turning for chaufeur, can also realize that transmitting ratio changes with steering angle between gear and tooth bar, reach the purpose of energy flipper turn when the wide-angle bend.
The technical scheme that its technical matters that solves the utility model adopts is: upward steering inner articulated shaft, following steering inner articulated shaft, upper cardan, lower cardan, outside thread connecting rod, gear are linked in sequence, the axle at gear two ends respectively distributes a sleeve, the groove of two sleeve linings and transmission shaft projection engages and can do axial slide relative between the two.Two antifriction-bearing boxs are fixed on respectively between negative thread gliding mass and gliding mass and two sleeves, and the two ends of negative thread gliding mass and gliding mass contact with inner walls.A spring all is installed between the below of negative thread gliding mass and gliding mass and housing.Negative thread gliding mass and gliding mass have the slippage up and down of enough spaces in housing.The surface of the gear that middle little two ends are big is the hyperbolic-type curved surface.The section of last steering inner articulated shaft and following steering inner articulated shaft is a rectangle, but drive torque and axially slide relative between the two.The screw thread of the inside of negative thread gliding mass for being meshed with the outside thread connecting rod.Dust boot is enclosed within outside, thereby nut is with top cover and the housing stationary rack that tightens together.When needing to turn in automobile is travelling the way, the chaufeur manually torque of output passes to steering inner articulated shaft, following steering inner articulated shaft, outside thread connecting rod with order.Because the engagement of screw thread, the rotation of outside thread connecting rod in the negative thread gliding mass will make and itself move vertically, the gear that is connected as a single entity is with it also moved vertically, the point of engagement of wheel and rack are moved to gear one end, because gear its diameter vertically is different everywhere, so the change of point of engagement will make the ratio changing of wheel and rack, because all the diameter than the centre is big for the diameter at gear two ends, so no matter left still right-hand turning to, point of engagement all move to the big end of gear diameter, the transmitting ratio that makes wheel and rack no matter left still right-hand turning to the time all increase, turn to especially wide-angle to turn to become convenient and swift thereby make.
The beneficial effects of the utility model are, not only can control motor turning, can also make whole process become convenient and swift.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is a longitudinal profile constructional drawing of the present utility model.
Steering inner articulated shaft on 1. 2. descends steering inner articulated shaft, 3. upper cardan, 4. lower cardan among the figure, 5. housing, 6. top cover, 7. nut, 8. tooth bar, 9. gear, 10. nut, 11. dust boots, 12. negative thread gliding masses, 13. the outside thread connecting rod, 14. springs, 15. antifriction-bearing boxs, 16. sleeve, 17. transmission shaft projectioies, 18. antifriction-bearing boxs, 19. gliding mass, 20. springs, 21. sleeves.
The specific embodiment
In the drawings, last steering inner articulated shaft (1), following steering inner articulated shaft (2), upper cardan (3), lower cardan (4), outside thread connecting rod (13), gear (9) are linked in sequence, the axle distributor barrel (16) and the sleeve (21) at gear (9) two ends, the groove of sleeve (16) and sleeve (21) inwall and transmission shaft projection (17) mesh and can do axial slide relative between the two.Sleeve (16) and sleeve (21) are gone up each fixedly antifriction-bearing box (15) and antifriction-bearing box (18).Antifriction-bearing box (15) and antifriction-bearing box (18) are fixed on respectively in negative thread gliding mass (12) and the gliding mass (19), and the two ends of negative thread gliding mass (12) and gliding mass (19) all contact with housing (5) inwall.Between two gliding masses below and the housing (5) spring (14) and spring (20) are installed all.And two gliding masses have the slippage up and down of enough spaces in housing (5).The surface of the gear (9) that middle little two ends are big is the hyperbolic-type curved surface.The section of last steering inner articulated shaft (1) and following steering inner articulated shaft (2) is a rectangle, but drive torque and axially slide relative between the two.The screw thread of the inside of negative thread gliding mass (12) for being meshed with outside thread connecting rod (13).Dust boot (11) is enclosed within housing (5) outside, nut (7) and nut (10) with top cover (6) and housing (5) thus the stationary rack that tightens together (8).Following steering inner articulated shaft (2) can both be realized the transmission of torque and both slide relative when last steering inner articulated shaft (1) in-to-in length should be able to satisfy point of engagement when gear (9) and tooth bar (8) at (9) two end points of gear.The screw thread number of negative thread gliding mass (12) can both be meshed with outside thread connecting rod (13) in the time of should be able to satisfying point of engagement when gear (9) and tooth bar (8) at (9) two end points of gear.The length of transmission shaft projection (17) can both mesh with sleeve (16) and sleeve (21) in the time of also should be able to satisfying point of engagement when gear (9) and tooth bar (8) in any position.
Claims (3)
1. variable-speed ratio automotive steering structure, last steering inner articulated shaft, following steering inner articulated shaft, upper cardan, lower cardan, outside thread connecting rod, gear are linked in sequence, and it is characterized in that: two antifriction-bearing boxs are fixed on respectively between negative thread gliding mass and gliding mass and two sleeves; The two ends of negative thread gliding mass and gliding mass contact with inner walls, and a spring all is installed between the below of negative thread gliding mass and gliding mass and housing.
2. variable-speed ratio automotive steering structure according to claim 1 is characterized in that: the surface of the gear that middle little two ends are big is the hyperbolic-type curved surface.
3. variable-speed ratio automotive steering structure according to claim 1 is characterized in that: the section of going up steering inner articulated shaft and following steering inner articulated shaft is a rectangle, but drive torque and axially slide relative between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200705549U CN201217446Y (en) | 2008-05-19 | 2008-05-19 | Steering mechanism with variable-gear-ratio of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200705549U CN201217446Y (en) | 2008-05-19 | 2008-05-19 | Steering mechanism with variable-gear-ratio of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201217446Y true CN201217446Y (en) | 2009-04-08 |
Family
ID=40540280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200705549U Expired - Fee Related CN201217446Y (en) | 2008-05-19 | 2008-05-19 | Steering mechanism with variable-gear-ratio of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201217446Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973306A (en) * | 2010-09-30 | 2011-02-16 | 奇瑞汽车股份有限公司 | Steering post for vehicles |
| CN114771647A (en) * | 2022-06-21 | 2022-07-22 | 太原理工大学 | Spiral variable transmission ratio mechanism, electro-hydraulic power steering system applying same and method |
-
2008
- 2008-05-19 CN CNU2008200705549U patent/CN201217446Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973306A (en) * | 2010-09-30 | 2011-02-16 | 奇瑞汽车股份有限公司 | Steering post for vehicles |
| CN101973306B (en) * | 2010-09-30 | 2012-06-27 | 奇瑞汽车股份有限公司 | Steering post for vehicles |
| CN114771647A (en) * | 2022-06-21 | 2022-07-22 | 太原理工大学 | Spiral variable transmission ratio mechanism, electro-hydraulic power steering system applying same and method |
| CN114771647B (en) * | 2022-06-21 | 2022-10-21 | 太原理工大学 | Helical variable transmission ratio mechanism, electro-hydraulic power steering system and method using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102555889B (en) | Adaptive spot lamp and steering actuator thereof | |
| WO2011077614A1 (en) | Shock absorbing device for rack-and-pinion type steering mechanism | |
| CN203202193U (en) | Automobile gear shifting handle | |
| CN201217446Y (en) | Steering mechanism with variable-gear-ratio of automobile | |
| CN103129602A (en) | Steering apparatus of vehicle and system of controlling the same | |
| CN105539252A (en) | Electric car mover | |
| CN102303639B (en) | Automobile steering device | |
| CN107813867A (en) | Steering and vehicle | |
| CN205916181U (en) | Steering drive axle assembly and a steering system | |
| CN202674097U (en) | Clutch control mechanism of automatic transmission | |
| EP4474681A1 (en) | Parking device | |
| CN105667586B (en) | Delivery vehicle and its steering | |
| CN101190688A (en) | Car steering tube column device | |
| CN207141233U (en) | The pilotless automobile steering mechanism of adjustable repacking | |
| KR100661726B1 (en) | Cars for automatic transmission | |
| CN210391291U (en) | A direction adjusting device, steering column and automobile having the same | |
| CN204372068U (en) | A kind of speed change gear and automobile | |
| CN202790485U (en) | Push rod driving device in automatic gearbox parking system | |
| CN201080202Y (en) | adjustable steering gear | |
| CN113479257A (en) | Steering control system and vehicle | |
| CN206802275U (en) | Automobile speed variator gear changing operating mechanism | |
| CN106515841B (en) | A kind of control mechanism of variable ratio steering system | |
| CN204567299U (en) | A kind of normal control vehicle cane type shift steering unit | |
| CN222097746U (en) | Automobile and automobile mechanical steering device thereof | |
| CN116279771B (en) | Steering gear with self-power-assisted steering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xiao Jintao Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20120519 |