CN104443020A - Rotary valve structure of steering gear - Google Patents
Rotary valve structure of steering gear Download PDFInfo
- Publication number
- CN104443020A CN104443020A CN201310433083.9A CN201310433083A CN104443020A CN 104443020 A CN104443020 A CN 104443020A CN 201310433083 A CN201310433083 A CN 201310433083A CN 104443020 A CN104443020 A CN 104443020A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- input shaft
- rotary valve
- steering gear
- valve structure
- 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
Links
Classifications
-
- 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
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
- B62D5/083—Rotary valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a rotary valve structure of a steering gear. The rotary valve structure of the steering gear comprises an input shaft, a screw rod and a torsion rod. One end of the input shaft is embedded in the screw rod, and a noise reduction ring is arranged at the position, connected with the screw rod, of the input shaft. One end of the torsion rod is connected with the screw rod through a positioning pin, an opening-shaped ring is further arranged at the end, connected with the screw rod, of the torsion rod, and the other end of the torsion rod is fixedly connected with the input shaft through a positioning pin. A composite cutting edge is arranged at the position, connected with the input shaft, of the screw rod, and a quartered limiting tooth is arranged at the bottom of an inner hole of the screw rod. Through improvement, a limiting tooth groove which is originally formed in one side of the big end of the screw rod is changed to be formed in the bottom of the inner hole of the screw rod, the dimension of the rotary valve can be relatively reduced, and space is saved for the arrangement of the steering gear in a chassis. The composite cutting edge technology is adopted in the connecting position of the screw rod and the input shaft, the steering performance of the steering gear is improved, a driver can rotate a steering wheel lightly and conveniently and has a good road feel, and therefore the safety of driving is improved.
Description
Technical field
The present invention relates to automobile steering system, particularly relate to a kind of deflector rotary valve structure.
Background technology
By the limitation of picking-up vehicle arrangement space, when entire vehicle design, comparatively strict to the dimensional characteristic of deflector, traditional diverter structure, cannot meet the matching requirements of car load; Meanwhile, customer requirement deflector operates lighter, more comfortable when turning to, namely have higher requirement to deflector performance.
Tradition picking-up vehicle, for meeting car load matching requirements, has often given up the demand to its deflector performance boost, and how accomplishing that the two is taken into account is pick up industry urgent need to solve the problem.
Summary of the invention
Requirement to deflector size during for meeting picking-up vehicle master layout, promote the turning efficiency of deflector, the present invention proposes a kind of deflector rotary valve structure simultaneously.
For this reason, technical scheme of the present invention is: a kind of deflector rotary valve structure, comprises input shaft, screw rod and torsion bar, and one end of input shaft is owed mutually in screw rod, and input shaft is provided with a noise reduction ring with the junction of screw rod; One end of torsion bar is connected with screw rod by a locating dowel pin, a shape of the mouth as one speaks circle is also provided with at this end, the other end of torsion bar is fixed by a locating dowel pin and input shaft, it is characterized in that: on described screw rod, be provided with composite cutting edge with the junction of input shaft, is provided with four points of limiting tooths bottom the endoporus of screw rod.
The one of technique scheme is improved and is: described composite cutting edge is made up of a curved edge and a straight line edge, tangent between two cutting edges.
Beneficial effect:
Original spacing teeth groove being located at screw rod large end side, by improving, rearranges to bottom screw rod endoporus, relatively can reduce the size of rotary valve by the present invention, for the layout of deflector in operator's compartment saves space; The junction of screw rod and input shaft adopts composite cutting edge technology, improves the turning efficiency of deflector, light and road feel good when making chaufeur steering wheel rotation, improves the safety of driving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structure for amplifying schematic diagram of part 7 in Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram of part 8 in Fig. 1.
Number in the figure is: 1, input shaft; 2, screw rod; 3, torsion bar; 4, noise reduction ring; 5, locating dowel pin; 6, shape of the mouth as one speaks circle; 7, composite cutting edge; 8, four points of limiting tooths; 9, curved edge; 10, straight line edge; 11, point of contact.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, a kind of deflector rotary valve structure, comprises input shaft 1, screw rod 2 and torsion bar 3, and one end of input shaft 1 is owed mutually in screw rod 2, and input shaft 1 is provided with a noise reduction ring 4 with the junction of screw rod 2, can play sealing function at reduction noise simultaneously; One end of torsion bar 3 is connected with screw rod 2 by a locating dowel pin 5, and this end of torsion bar 3 is also provided with a shape of the mouth as one speaks circle 6, makes can be tightly connected between torsion bar and screw rod, and the other end of torsion bar 3 is fixed by a locating dowel pin 5 and input shaft 1; Described screw rod 2 is provided with composite cutting edge 7 with the junction of input shaft 1, bottom the endoporus of screw rod 2, is provided with four points of limiting tooths 8.
As shown in Figure 2, more flexible in order to make to turn to, described composite cutting edge 7 is made up of a curved edge 9 and a straight line edge 10, is tangential on point of contact 11 place between two cutting edges.
Original spacing teeth groove being located at screw rod large end side, by improving, rearranges to bottom screw rod endoporus, relatively can reduce the size of rotary valve by the present invention, for the layout of deflector in chassis saves space; The junction of screw rod and input shaft adopts composite cutting edge technology, improves the turning efficiency of deflector, light and road feel good when making chaufeur steering wheel rotation, improves the safety of driving.
Claims (2)
1. a deflector rotary valve structure, comprises input shaft, screw rod and torsion bar, and one end of input shaft is embedded in screw rod, and input shaft is provided with a noise reduction ring with the junction of screw rod; One end of torsion bar is connected with screw rod by a locating dowel pin, a shape of the mouth as one speaks circle is also provided with at this end, the other end of torsion bar is fixed by a locating dowel pin and input shaft, it is characterized in that: on described screw rod, be provided with composite cutting edge with the junction of input shaft, is provided with four points of limiting tooths bottom the endoporus of screw rod.
2. a kind of deflector rotary valve structure according to claim 1, is characterized in that: described composite cutting edge is made up of a curved edge and a straight line edge, tangent between two cutting edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433083.9A CN104443020A (en) | 2013-09-23 | 2013-09-23 | Rotary valve structure of steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433083.9A CN104443020A (en) | 2013-09-23 | 2013-09-23 | Rotary valve structure of steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104443020A true CN104443020A (en) | 2015-03-25 |
Family
ID=52889970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310433083.9A Pending CN104443020A (en) | 2013-09-23 | 2013-09-23 | Rotary valve structure of steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104443020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336739A (en) * | 2017-06-22 | 2017-11-10 | 安徽德孚转向系统股份有限公司 | A kind of new automobile electric power-assisted steering apparatus spindle mounted structure |
-
2013
- 2013-09-23 CN CN201310433083.9A patent/CN104443020A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336739A (en) * | 2017-06-22 | 2017-11-10 | 安徽德孚转向系统股份有限公司 | A kind of new automobile electric power-assisted steering apparatus spindle mounted structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |