CN213676880U - Steering structure for improving high-speed stability of steering gear - Google Patents
Steering structure for improving high-speed stability of steering gear Download PDFInfo
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- CN213676880U CN213676880U CN202022065545.4U CN202022065545U CN213676880U CN 213676880 U CN213676880 U CN 213676880U CN 202022065545 U CN202022065545 U CN 202022065545U CN 213676880 U CN213676880 U CN 213676880U
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Abstract
The utility model discloses a promote structure that turns to of high-speed stability of steering gear belongs to the auto steering device field, promotes structure that turns to of high-speed stability of steering gear including steering screw, sector, steering nut. Wherein, the surface of the steering screw rod is provided with an external thread. An internal thread is arranged inside the steering nut, gear teeth are arranged on the outer surface of the steering nut, and an external thread on the steering screw rod is matched with the internal thread of the steering nut. The rotating shaft of the sector is perpendicular to the rotating shaft of the steering screw, and the sector is meshed with the gear teeth on the steering nut. The convex width of the middle position tooth surface of the gear tooth on the steering nut is any value between 1.1 and 1.3 of the convex width of the traditional middle position tooth surface. The utility model discloses public promotion steering gear high speed stability's structure that turns to specifically can improve the meso position when the vehicle is high-speed to travel and feel, and then improves the advantage of driving the travelling comfort.
Description
Technical Field
The utility model relates to a car turns to the device field, especially relates to a promote structure that turns to of steering gear high speed stability.
Background
The design performance of the neutral position tooth surface directly influences the high-speed steering stability of an automobile, the change of the tooth surface clearance can be clearly sensed in the process of driving the automobile, the high-speed driving process is particularly obvious, the neutral position tooth surface bulge of the existing steering gear meshing tooth surface structure is narrow, the neutral position feeling is not clear when the automobile drives at high speed, the steering process is unstable, and the driving comfort is influenced.
SUMMERY OF THE UTILITY MODEL
The steering gear engagement tooth surface structure aims to overcome the defects that in the prior art, the projection of a middle position tooth surface of a traditional steering gear engagement tooth surface structure is narrow, so that when a vehicle runs at a high speed, the middle position feeling is not clear, and the driving comfort is influenced. The utility model discloses the problem that needs to solve lies in providing a promote structure that turns to of high-speed stability of steering gear, has the meso position sense when can improving the high-speed vehicle and go, and then improves the defect of driving comfort.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a pair of promote structure that turns to of high-speed stability of steering gear, include:
the surface of the steering screw is provided with an external thread;
the steering nut is internally provided with internal threads, the outer surface of the steering nut is provided with gear teeth, and the external threads on the steering screw are matched with the internal threads of the steering nut;
the rotating shaft of the sector is perpendicular to the rotating shaft of the steering screw, and the sector is meshed with the gear teeth on the steering nut;
the convex width of the tooth surface of the middle position of the upper gear tooth of the steering nut is any value between 1.1 and 1.3 of the convex width of the tooth surface of the middle position in the prior art.
Preferably, the teeth on the steering nut have a module of 6.
Preferably, the steering screw rod and the steering nut are matched by adopting a ball screw structure.
The utility model has the advantages that:
the utility model provides a pair of promote structure that turns to of high-speed stability of steering gear, including steering screw, steering nut, sector, wherein steering screw and steering nut screw-thread fit turn to the nut, and the surface that turns to the nut is provided with the teeth of a cogwheel, and the teeth of a cogwheel meshes with the sector tooth mutually. By rotating the steering screw, the steering nut moves left and right along the axial direction of the steering screw, so that the gear teeth arranged on the surface of the steering screw also move, the sector teeth matched with the gear teeth rotate, and the steering of the vehicle is controlled. Because the tooth surface bulge of the gear tooth middle position on the surface of the traditional steering nut is narrow, when the sector teeth are matched with the steering nut, the matching angle of the sector teeth and the steering nut is small, and the steering middle position feeling of the vehicle is low. And the utility model discloses a promote the high-speed stability of steering gear's teeth of a cogwheel meso position flank of tooth is protruding wideer in the structure that turns to for when the cooperation of fan tooth to steering nut, the mating angle of the two is bigger, makes turning to of vehicle meso position feel high. To sum up, the utility model discloses a promote steering gear high speed stability's structure that turns to has the meso position sense when can improving the high-speed vehicle and go, and then improves the advantage of driving the travelling comfort.
Drawings
Fig. 1 is a schematic structural diagram of a steering structure for improving high-speed stability of a steering gear provided by the present invention;
FIG. 2 is a schematic structural view of a steering structure when the median tooth flank protrusion is narrow.
In the figure:
1. a steering screw; 2. a steering nut; 3. a toothed fan; 21. and (4) gear teeth.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 2, the steering structure for improving the high-speed stability of the steering gear provided in the present embodiment includes a steering screw 1, a sector 3, and a steering nut 2. The surface of the steering screw rod 1 is provided with external threads, one end of the steering screw rod 1 is connected with a steering wheel, the steering screw rod 1 is provided with rotating power through the steering wheel, internal threads are arranged inside the steering nut 2, the outer surface of the steering nut 2 is provided with gear teeth 21, and the external threads on the steering screw rod 1 are matched with the internal threads of the steering nut 2, so that when the steering screw rod 1 rotates, the steering nut 2 can be driven to move towards the axial direction of the steering screw rod 1. The pivot of sector 3 sets up with the pivot of steering screw 1 is perpendicular, and the tooth wheel tooth 21 looks meshing on sector 3 and the steering nut 2, when steering nut 2 removed, can make and take place to rotate with the sector tooth of steering nut 2 complex, and then realizes turning to through the control car. The convex width of the tooth surface of the middle position of the gear 21 on the steering nut 2 is any value between 1.1 and 1.3 of the convex width of the tooth surface of the traditional middle position, the convex width of the tooth surface of the middle position of the gear 21 is widened to 1.1 to 1.3 times of the original convex width of the tooth surface of the traditional middle position (when the convex width of the tooth surface of the middle position is lower than 1.1 times, the effect of enhancing the middle position sense in a steering wheel is not obvious, but when the convex width of the tooth surface of the middle position is higher than 1.3 times of the original convex width, the matching between the sector gear and the gear 21 is difficult, so in order to ensure that the sector gear and the gear 21 can be well matched and the middle position sense in the steering wheel, the convex width of the tooth surface of the middle position of the tooth surface of the gear 21 on the steering nut 2 is arranged between 1.1 and 1.3 times of the traditional width, when the middle position is in position, the meshing angle, there is not the fit clearance for can not feel mechanical clearance when the control wheel rotates on the steering wheel), so make when the car is gone at a high speed, steering wheel control car turns to more stably.
In conclusion, the structure that turns to of the high-speed stability of promotion steering gear that this embodiment provided, including turning screw 1, steering nut 2, sector 3, wherein turning screw 1 and steering nut 2 screw-thread fit, the surface of steering nut 2 is provided with teeth of a cogwheel 21, and teeth of a cogwheel 21 meshes with the sector tooth mutually. By rotating the steering screw 1, the steering nut 2 moves left and right along the axial direction of the steering screw 1, so that the gear teeth 21 arranged on the surface of the steering screw 1 also move, the sector teeth matched with the gear teeth rotate, and the steering of the vehicle is controlled. Wherein, because the tooth surface bulge of the middle position of the gear teeth 21 on the surface of the conventional steering nut 2 is narrow, when the sector teeth are matched to the steering nut 2, the matching angle of the sector teeth and the steering nut is small, and the steering middle position feeling of the vehicle is low. And the utility model discloses a promote the high-speed stability of steering gear's the tooth face of the teeth of a cogwheel 21 meso position among the structure is protruding wideer for when the cooperation of fan tooth to steering nut 2, the mating angle of the two is bigger, makes turning to the meso position of vehicle feel high. The steering structure for improving the high-speed stability of the steering gear has the advantages that the middle position sense of a vehicle during high-speed running can be improved, and the driving comfort is further improved.
Further, the modulus of the teeth 21 on the steering nut 2 is 6.
In order to reduce the friction between the steering screw rod 1 and the steering nut 2, further, a ball screw structure is adopted between the steering screw rod 1 and the steering nut 2 for matching, a sliding groove capable of enabling a steel ball to move is arranged on a matched surface between the steering screw rod 1 and the steering nut 2, and the rotating screw rod transmits the rotating force to the steering nut through the steel ball.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (3)
1. A steering structure for improving high-speed stability of a steering gear is characterized by comprising:
the steering mechanism comprises a steering screw rod (1), wherein the surface of the steering screw rod (1) is provided with an external thread;
the steering nut (2) is internally provided with internal threads, the outer surface of the steering nut (2) is provided with gear teeth (21), and external threads on the steering screw rod (1) are matched with the internal threads of the steering nut (2);
the rotating shaft of the sector (3) is perpendicular to the rotating shaft of the steering screw rod (1), and the sector (3) is meshed with the gear teeth (21) on the steering nut (2);
the convex width of the tooth surface of the middle position of the upper gear teeth (21) of the steering nut (2) is any value between 1.1 and 1.3 times of the convex width of the tooth surface of the middle position in the prior art.
2. The steering structure for improving high-speed stability of a steering gear according to claim 1, wherein:
the modulus of the gear teeth (21) on the steering nut (2) is 6.
3. The steering structure for improving high-speed stability of a steering gear according to claim 1, wherein:
the steering screw rod (1) and the steering nut (2) are matched by adopting a ball screw structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022065545.4U CN213676880U (en) | 2020-09-18 | 2020-09-18 | Steering structure for improving high-speed stability of steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022065545.4U CN213676880U (en) | 2020-09-18 | 2020-09-18 | Steering structure for improving high-speed stability of steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213676880U true CN213676880U (en) | 2021-07-13 |
Family
ID=76748980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022065545.4U Active CN213676880U (en) | 2020-09-18 | 2020-09-18 | Steering structure for improving high-speed stability of steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213676880U (en) |
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2020
- 2020-09-18 CN CN202022065545.4U patent/CN213676880U/en active Active
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