CN202847800U - Steering shaft of automobile steering engine - Google Patents
Steering shaft of automobile steering engine Download PDFInfo
- Publication number
- CN202847800U CN202847800U CN 201220546707 CN201220546707U CN202847800U CN 202847800 U CN202847800 U CN 202847800U CN 201220546707 CN201220546707 CN 201220546707 CN 201220546707 U CN201220546707 U CN 201220546707U CN 202847800 U CN202847800 U CN 202847800U
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- CN
- China
- Prior art keywords
- axis body
- lateral wall
- oil groove
- shaft
- torsion bar
- 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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Abstract
The utility model discloses a steering shaft of an automobile steering engine. The steering shaft comprises a strip cylindrical shaft body, wherein a torsion bar through hole is arranged in the shaft body, a torsion bar installation portion is arranged at one end of the shaft body, and a protruding column capable of being inserted into the end of a gear shaft is arranged at the other end of the shaft body. A plurality of strip-shaped oil grooves are arranged on the outer lateral wall of the shaft body, and the length direction of the oil grooves is identical to the axial direction of the shaft body. Each oil groove comprises a bottom wall and a straight lateral wall, the bottom wall is a cylindrical arc surface, the axial direction where the cylindrical arc surface is located is perpendicular to the length direction of the shaft body and the plane where the straight lateral wall is located, and the cylindrical arc surface extends to the surface of the shaft body to form an arc surface lateral wall of the oil groove. One side of the straight lateral wall far away from the bottom of the oil groove is provided with a chamfer surface, and the chamfer surface and the straight lateral wall form an acute angle. The chamfer surface and the straight lateral wall of each oil groove form the acute angle so that during processing, the straight lateral wall of each oil groove is processed in the direction outside the shaft, burrs or iron sands are not apt to generate, a fluid channel formed by the chamfer surface and a valve sleeve is lengthened, and the steering shaft is table when hydraulic oil passes through, and driving comfortableness is greatly improved.
Description
Technical field
The utility model relates to technical field of automobile parts, is specifically related to a kind of automobile steering device steering shaft.
Background technology
Steering box on the automobile helps the driver firmly use dynamics to alleviate the driver when turning to when the driver beats bearing circle, when reaching driving the driver easily, machine easily, mainly be divided into rack steering machine and Worm-gear type steering box.Existing car rack formula steering box mainly is connected with gear wheel shaft by steering shaft, gear wheel shaft and tooth bar engagement, tooth bar is connected with pull bar, pull bar is connected setting with the wheel of automobile, thereby by bearing circle to the steering shaft input power, thereby the conversion of control wheel direction, thereby change vehicle traveling direction.Be provided with torsion bar in the steering shaft, the lateral wall of steering shaft is provided with oil groove, steering shaft is provided with the oil groove positions place and is arranged with valve pocket, valve pocket is provided with fuel feed hole and the oil outlet that matches with oil groove, motion by the mobile control tooth bar outer piston of hydraulic oil between gear wheel shaft and gear wheel shaft and tooth bar, thereby provide extra power in the time of can beating bearing circle for the driver, it is lighter that the driver is travelled.
At present, the outside of existing steering shaft is provided with oil groove, oil groove generally comprises the cambered surface wall, the both sides of cambered surface wall are straight sidewall, oil has entered oil groove the fuel feed hole from valve pocket, steering shaft matches with oil outlet after rotating, thereby hydraulic oil flows out from the oil outlet of valve pocket again, the oil of the oil groove on this steering shaft goes out from the effluent away from the oil groove bottom land of straight sidewall, on straight sidewall, generally be provided with one with the vertically disposed outflow fillet surface of straight sidewall, this outflow fillet surface generally is to reverse to the angle of oil groove with the vertical wheel face up-and-down movement of oil groove line of centers, and generation burr or iron filings are residual in oil groove easily.Flow out the fluid passage of fillet surface and valve pocket madial wall formation hydraulic oil, the fluid passage is shorter, under the repeated stock or other factor effects of hydraulic oil, foreign matters from being blocked occurs at the flow pass place easily, foreign matters from being blocked may cause the axial plane of gear wheel shaft or steering shaft to be scratched, cause leakage of oil, even may cause steering box to be scrapped.
Summary of the invention
The purpose of this utility model is: for the deficiencies in the prior art, the utility model provides a kind of can make the automobile steering device steering shaft that vehicle drive is more comfortable, running of hydraulic power oil is more relaxed.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of automobile steering device steering shaft, the axis body that comprises rectangular column, the inside of described axis body is provided with the torsion bar through hole that arranges along the axis body length direction, one end of axis body is the torsion bar installation portion, the other end is to be provided with the protruded stigma that can insert the gear wheel shaft end, described axis body is provided with the oil groove of some strips near the lateral wall of a side of protruded stigma, the length direction of described oil groove is consistent with the axial direction of axis body, described oil groove comprises diapire and straight sidewall, described diapire is the cylinder cambered surface, the cylinder cambered surface place axial direction of described diapire arranges with the axis body length direction is vertical, the cylinder cambered surface place axial direction of described diapire extends to the axis body surface with the cylinder cambered surface of the vertical described diapire in plane at straight sidewall place, form the cambered surface sidewall of oil groove, described straight sidewall is provided with fillet surface away from a side of oil groove bottom, and described fillet surface and straight sidewall acutangulate setting.
As preferably, the torsion bar installation portion of described axis body is provided with and cooperates the torsion bar pin-and-hole of installing with torsion bar of automobile steering gear.After adopting above-mentioned preferred version, axis body can be more firm with cooperating of torsion bar.
As preferably, described axis body is provided with two faceplates that are parallel to each other near the end lateral wall of protruded stigma, and the plane at faceplate place is parallel with the axial direction of axis body.After adopting above-mentioned preferred version, after the protruded stigma with the steering shaft end penetrated gear wheel shaft, gear wheel shaft was provided with the card column that matches with faceplate with the end face in the outside that protruded stigma cooperates, and it is more reasonable to cooperate.
As preferably, the lateral wall of described axis body is provided with the circlip groove of some annulars.After adopting above-mentioned preferred version, the structure of automobile steering device steering shaft is compacter.
As preferably, the lateral wall of described axis body is provided with the seal groove of some annulars.After adopting above-mentioned preferred version, the structure of automobile steering device steering shaft is compacter, better tightness.
The fillet surface of automobile steering device steering shaft of the present utility model and the straight sidewall of oil groove acutangulate setting, add and processed outside axle by oil groove straight sidewall direction man-hour, be not easy in oil groove, to produce burr or iron sand, and the fluid passage that fillet surface and valve pocket are formed increases, milder when hydraulic oil flows through, driving comfort improves greatly.
Description of drawings
Fig. 1 is the external structure scheme drawing of the utility model embodiment;
Fig. 2 is the cross-sectional view of the utility model embodiment;
Fig. 3 is the cross-sectional view at A-A place among Fig. 2;
Fig. 4 is the cross-sectional view at B-B place among Fig. 2;
Fig. 5 is the cross-sectional view at C-C place among Fig. 1;
Fig. 6 is the cross-sectional view at D-D place among Fig. 4;
Fig. 7 is the partial enlarged drawing at E place among Fig. 4;
Fig. 8 is the partial enlarged drawing at F place among Fig. 7.
The specific embodiment
Such as Fig. 1-shown in Figure 8, embodiment of the present utility model is a kind of automobile steering device steering shaft specifically, the axis body 1 that comprises rectangular column, the inside of axis body 1 is provided with the torsion bar through hole 11 that arranges along the axis body length direction, one end of axis body 1 is torsion bar installation portion 2, the other end is to be provided with the protruded stigma 3 that can insert the gear wheel shaft end, axis body 1 is provided with the oil groove 12 of six well-distributed strips near the lateral wall of a side of protruded stigma 3, the length direction of oil groove 12 is consistent with the axial direction of axis body 1, oil groove 12 comprises diapire 121 and straight sidewall 122, diapire 121 is the cylinder cambered surface, the cylinder cambered surface place axial direction of diapire 121 and vertical setting of axis body 1 length direction, the cylinder cambered surface place axial direction of diapire 121 is vertical with the plane at straight sidewall 122 places, the cylinder cambered surface of diapire 121 extends to the surface of axis body 1, forms the cambered surface sidewall of oil groove 12, and straight sidewall 122 is provided with fillet surface 123 away from a side of oil groove 12 bottoms, fillet surface 123 acutangulates setting with straight sidewall 122, and angulation is a.
The torsion bar installation portion 2 of axis body 1 is provided with the torsion bar pin-and-hole 21 that cooperates installation with torsion bar of automobile steering gear.Axis body 1 is provided with two faceplates that are parallel to each other 13 near the end lateral wall of protruded stigma 3, and the plane at faceplate 13 places is parallel with the axial direction of axis body 1.The lateral wall of axis body 1 is provided with the circlip groove 14 of annular.The lateral wall of axis body 1 is provided with the seal groove 15 of annular.
The principle of work of the steering box steering shaft of the principle of work of automobile steering device steering shaft of the present utility model and prior art is basic identical, difference is: steering shaft of the present utility model acutangulates setting with fillet surface 123 and straight sidewall 122, increased the straight sidewall 122 of steering shaft oil groove 12 and the fluid passage of valve sleeving inner wall formation, Fluid Flow in A relaxes more.
Claims (5)
1. automobile steering device steering shaft, the axis body that comprises rectangular column, the inside of described axis body is provided with the torsion bar through hole that arranges along the axis body length direction, it is characterized in that: an end of described axis body is the torsion bar installation portion, the other end is to be provided with the protruded stigma that can insert the gear wheel shaft end, described axis body is provided with the oil groove of some strips near the lateral wall of a side of protruded stigma, the length direction of described oil groove is consistent with the axial direction of axis body, described oil groove comprises diapire and straight sidewall, described diapire is the cylinder cambered surface, the cylinder cambered surface place axial direction of described diapire arranges with the axis body length direction is vertical, the cylinder cambered surface place axial direction of described diapire is vertical with the plane at straight sidewall place, the cylinder cambered surface of described diapire extends to the axis body surface, form the cambered surface sidewall of oil groove, described straight sidewall is provided with fillet surface away from a side of oil groove bottom, and described fillet surface and straight sidewall acutangulate setting.
2. automobile steering device steering shaft according to claim 1 is characterized in that: the torsion bar installation portion of described axis body is provided with and cooperates the torsion bar pin-and-hole of installing with torsion bar of automobile steering gear.
3. automobile steering device steering shaft according to claim 1 is characterized in that: described axis body is provided with two faceplates that are parallel to each other near the end lateral wall of protruded stigma, and the plane at faceplate place is parallel with the axial direction of axis body.
4. automobile steering device steering shaft according to claim 1, it is characterized in that: the lateral wall of described axis body is provided with the circlip groove of some annulars.
5. automobile steering device steering shaft according to claim 1, it is characterized in that: the lateral wall of described axis body is provided with the seal groove of some annulars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546707 CN202847800U (en) | 2012-10-23 | 2012-10-23 | Steering shaft of automobile steering engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546707 CN202847800U (en) | 2012-10-23 | 2012-10-23 | Steering shaft of automobile steering engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202847800U true CN202847800U (en) | 2013-04-03 |
Family
ID=47979024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220546707 Expired - Fee Related CN202847800U (en) | 2012-10-23 | 2012-10-23 | Steering shaft of automobile steering engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202847800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228932A (en) * | 2014-06-13 | 2014-12-24 | 王洁梅 | Automobile steering gear |
-
2012
- 2012-10-23 CN CN 201220546707 patent/CN202847800U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228932A (en) * | 2014-06-13 | 2014-12-24 | 王洁梅 | Automobile steering gear |
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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: 20130403 Termination date: 20141023 |
|
| EXPY | Termination of patent right or utility model |