CN208306737U - A kind of automobile steering device input shaft - Google Patents
A kind of automobile steering device input shaft Download PDFInfo
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- CN208306737U CN208306737U CN201820965532.2U CN201820965532U CN208306737U CN 208306737 U CN208306737 U CN 208306737U CN 201820965532 U CN201820965532 U CN 201820965532U CN 208306737 U CN208306737 U CN 208306737U
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- ontology
- input shaft
- steering device
- wall
- device input
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Abstract
The utility model provides a kind of automobile steering device input shaft, belongs to technical field of automobile accessories.It solves the problems such as existing automobile steering device input shaft structure intensity is bad, force transmission effect is bad.This automobile steering device input shaft includes the ontology in direct rod shape, the outer wall of ontology upper end has the spline of two circle axially spaced-apart settings, ontology lower end is equipped with the blind hole being coaxially disposed with ontology, and the inner end of blind hole extends to ontology center and the inner end inner wall of blind hole is equipped with internal spline.The utility model has many advantages, such as that structural strength is high, power transmission effect is good.
Description
Technical field
The utility model belongs to technical field of automobile accessories, is related to a kind of motor turning accessory, in particular to a kind of automobile
Turning machine input shaft.
Background technique
Automobile steering device is used for motor turning comprising the steering input shaft that connect with vehicle steering wheel and transmits power
To the steering screw of control automotive wheel gear, the torsion bar for being equipped in input shaft and connecting with steering screw is turned to.
Such as Chinese patent literature data discloses a kind of injection molding spline connection knot of electric booster steering device drive shaft system
Structure [application number: 201521009265.4；Authorization Notice No.: CN205298306U] comprising upper steering shaft and input shaft, it is upper to turn
It is internal spline hollow shape to axis, input shaft upper end has bulk metal spline, position edge among bulk metal spline on input shaft
Circular path issues slot, and the metal spline input shaft of trough of belt is fixed on particular manufacturing craft and is wrapped in metal by being molded to be formed
Spline, slot periphery fluting spline layer structure, input shaft by fluting spline and upper steering shaft cooperate grafting.
Input shaft in above-mentioned patent compared with turning machine input shaft structure it is almost the same, as shown in its attached drawing 3,
Input shaft axially penetrates through, and such input shaft overall structural strength is bad, and especially resistance to torsion is not ideal enough at spline, influence using
Service life；Torsion bar and input shaft are circumferentially connected by pin, pin are used for a long time, certain deformation inevitably occurs, can not accurate transfer move
Power, there are power losses；In addition the outer wall lubricity that input shaft is installed for valve deck is bad, influences to turn to smoothness.
Summary of the invention
The purpose of this utility model be for the above-mentioned problems in the prior art, provide a kind of structural strength it is high,
The good automobile steering device input shaft of power transmission effect.
The purpose of this utility model can be realized by the following technical scheme: a kind of automobile steering device input shaft, including
In the ontology of direct rod shape, the outer wall of the ontology upper end has the spline of two circle axially spaced-apart settings, which is characterized in that described
Ontology lower end be equipped with the blind hole that is coaxially disposed with ontology, the inner end of the blind hole extends to the interior of ontology center and blind hole
Inner wall is held to be equipped with internal spline.
In a kind of above-mentioned automobile steering device input shaft, the blind hole in internal spline outer end inner wall radially
A circle interference fit portion is convexed to form, the outer end in the interference fit portion is in arc transition to blind hole inner wall.In this way torsion bar with
Circumferential limit is realized in internal spline cooperation, and interference fit portion is interference fitted for torsion bar, realizes the axial limiting of torsion bar and ontology, make
It obtains torsion bar to be firmly combined with ontology, ensure that the stability of power transmitting, guiding is played in arc transition in the outer end in interference fit portion
Effect is assembled convenient for torsion bar.
In a kind of above-mentioned automobile steering device input shaft, the ontology center outer wall has a circle radially protruding
Flange collar, the ontology be arranged with by flange collar coat rubber sleeve.In this way after ontology and steering axis connection, rubber sleeve is sealed in
Steering shaft inner wall, flange collar and rubber sleeve ensure that the leakproofness of junction, avoid impurity from entering between ontology and steering shaft and cause
Abrasion also functions to axial limiting effect to ontology, and ontology and steering shaft stable connection, force transmission effect are good.
In a kind of above-mentioned automobile steering device input shaft, the lower end outer wall center of the ontology has a circle recessed
The arc groove entered.The lower end of ontology and valve seat clearance fit, arc groove enters lubricant grease, so that the lower end of ontology
Outer wall forms lubricating oil film, and ontology lower end rotates smooth, not easy to wear, long service life.
In a kind of above-mentioned automobile steering device input shaft, the lower end base of the ontology has recessed limit
Slot.On the basis of torsion bar and drive screw circumferentially limit, the setting of limiting slot is so that the lower end of ontology and drive screw are circumferential
Limit improves the stability of power transmitting.
In a kind of above-mentioned automobile steering device input shaft, the lower end outer wall of the ontology has location hole.Positioning
Hole facilitates ontology processing positioning, so that good product consistency.
Compared with prior art, the structural strength of this automobile steering device input shaft is high, and power transmitting is accurate, the operation is stable
Property it is good, rotate smooth, long service life.
Detailed description of the invention
Fig. 1 is the structure semi-cutaway of this automobile steering device input shaft.
In figure, 1, ontology；2, spline；3, blind hole；4, internal spline；5, interference fit portion；6, flange collar；7, rubber sleeve；8, arc
Shape slot；9, limiting slot；10, location hole.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this automobile steering device input shaft includes the ontology 1 in direct rod shape, the outer wall of 1 upper end of ontology has
The spline 2 of two circle axially spaced-apart settings, 1 lower end of ontology are equipped with the blind hole 3 being coaxially disposed with ontology 1, and the inner end of blind hole 3 extends to
The inner end inner wall of 1 center of ontology and blind hole 3 is equipped with internal spline 4.
The previous hole that axially penetrates through has been changed to blind hole 3 with input shaft by this automobile steering device, so that and structural strength is high,
Especially at the spline 2 of 1 upper end of ontology, according to the mechanics of materials it is found that bending resistance and torsional strength and the corresponding section system in section
Number is directly proportional, and section factor is amount related with sectional dimension, and 1 upper end of ontology is the solid sky for making sectional dimension more original
The heart is big, so improving bending resistance and the torsional strength of 1 upper end of ontology, extends service life；Internal spline 4 is matched with the flower of torsion bar
Key end assembly, in this way can accurate transfer power, reduce power loss, promote the service performance of turning machine.
It further describes in detail, for the ease of assembling and guaranteeing the stability of power transmitting, blind hole 3 is in the inner wall of 4 outer end of internal spline
A circle interference fit portion 5 is radially convexed to form, the outer end in interference fit portion 5 is in arc transition to 3 inner wall of blind hole；In order to even
Firm and good airproof performance is connect, 1 center outer wall of ontology has the flange collar 6 of a circle radially protruding, and ontology 1, which is arranged with, wraps flange collar 6
The rubber sleeve 7 covered；Arc groove 8 smooth in order to rotate, that the lower end outer wall center of ontology 1 has a circle recessed.
On the basis of torsion bar and drive screw circumferentially limit, the lower end base of ontology 1 has recessed limiting slot 9, limit
Position slot 9 limits the lower end of ontology 1 and drive screw circumferentially, improves the stability of power transmitting.The lower end outer wall of ontology 1 has
There is location hole 10, location hole 10 facilitates the processing positioning of ontology 1, so that good product consistency.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein
Described in specific embodiment be only the spirit of the present invention is given an example.The utility model technical field
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of automobile steering device input shaft, the ontology (1) including being in direct rod shape, the outer wall tool of the ontology (1) upper end
The spline (2) for thering are two circle axially spaced-aparts to be arranged, which is characterized in that ontology (1) lower end is equipped with to be coaxially disposed with ontology (1)
Blind hole (3), the inner end inner wall that the inner end of the blind hole (3) extends to ontology (1) center and blind hole (3) is equipped with internal spline
(4).
2. a kind of automobile steering device input shaft according to claim 1, which is characterized in that the blind hole (3) is in interior
The inner wall of spline (4) outer end radially convexes to form a circle interference fit portion (5), the outer end in the interference fit portion (5)
In arc transition to blind hole (3) inner wall.
3. a kind of automobile steering device input shaft according to claim 2, which is characterized in that in the middle part of the ontology (1)
Locate the flange collar (6) that outer wall has a circle radially protruding, the ontology (1) is arranged with the rubber sleeve (7) for coating flange collar (6).
4. a kind of automobile steering device input shaft according to claim 3, which is characterized in that under the ontology (1)
The arc groove (8) for holding outer wall center to have a circle recessed.
5. a kind of automobile steering device input shaft according to claim 4, which is characterized in that under the ontology (1)
Hold bottom that there is recessed limiting slot (9).
6. a kind of automobile steering device input shaft according to claim 5, which is characterized in that under the ontology (1)
Hold outer wall that there are location hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820965532.2U CN208306737U (en) | 2018-06-22 | 2018-06-22 | A kind of automobile steering device input shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820965532.2U CN208306737U (en) | 2018-06-22 | 2018-06-22 | A kind of automobile steering device input shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208306737U true CN208306737U (en) | 2019-01-01 |
Family
ID=64707625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820965532.2U Active CN208306737U (en) | 2018-06-22 | 2018-06-22 | A kind of automobile steering device input shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208306737U (en) |
-
2018
- 2018-06-22 CN CN201820965532.2U patent/CN208306737U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317600 Yucheng street, Yucheng street, Yuhuan City, Taizhou, Zhejiang Patentee after: Zhejiang Huifeng Automobile Parts Co., Ltd. Address before: 317600 Yucheng street, Yucheng street, Yuhuan City, Taizhou, Zhejiang Patentee before: Zhejiang Huifeng Autoparts MFG Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |