CN209064178U - A kind of energy-absorbing steel band and vehicle electric power-assisted steering device tubular column system - Google Patents
A kind of energy-absorbing steel band and vehicle electric power-assisted steering device tubular column system Download PDFInfo
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- CN209064178U CN209064178U CN201821456132.5U CN201821456132U CN209064178U CN 209064178 U CN209064178 U CN 209064178U CN 201821456132 U CN201821456132 U CN 201821456132U CN 209064178 U CN209064178 U CN 209064178U
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- mounting bracket
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Abstract
The utility model provides a kind of energy-absorbing steel band and vehicle electric power-assisted steering device tubular column system, the energy-absorbing steel band include energy-absorbing broadband and integrated molding be mounted on two energy-absorbing faciolas on the energy-absorbing broadband.Wherein, energy-absorbing broadband includes the horizontal segment being in contact with mounting bracket bottom end and the bending section with horizontal segment in 130~160 ° of angles；Energy-absorbing faciola include with bending section be integrally formed and wrap mounting bracket side arc section, with the integrally formed changeover portion of arc section and with the integrally formed straight line slice section of changeover portion, 2~3mm is divided between arc section and mounting bracket；Vehicle electric power-assisted steering device tubular column system includes outer tubing string, interior tubing string, outer column mounting bracket and energy-absorbing steel band, outer column mounting bracket includes u-bracket and the grillage for being mounted on u-bracket top, the energy-absorbing broadband of energy-absorbing steel band is in contact with the bottom end of u-bracket, the side of arc section the wrapping u-bracket and grillage of energy-absorbing faciola, straight line slice section extend fixation in the groove of grillage.
Description
Technical field
The utility model belongs to automobile electric power-assisted steering technical field, and in particular to a kind of to provide the suction of collision crumple power
Energy steel band and the vehicle electric power-assisted steering device tubular column system for being equipped with the energy-absorbing steel band.
Background technique
Collision crumple performance is the important indicator of electric power steering system of automobile, the even more pass of automobile steering system passive security
Key.In existing steering system, collision crumple power mainly is provided by three parts, is the friction between interior tubing string and outer tubing string respectively
The frictional force of shearing force and bolt and outer column mounting bracket that power, the injection molding that outer column mounting bracket bottom end is arranged in are sold.
The shortcomings that three parts crumple power is obvious: injection molding pin shearing force and bolt frictional force only start 1-3mm in crumple and make
With cutting little ice more than the crumple stroke；Although inner and outer pipes frictional force continuous action, force value in entire crumple stroke
Not easily-controllable, fluctuation is larger, and is restricted by handle power.Therefore, under existing design crumple power in crumple stroke initial value and
Steady-state value drop is excessive, and crumple power is unstable, be not able to satisfy main engine plants to collision crumple energy-absorbing requirement, occupant safety easily by
To threat.
Utility model content
The utility model is to carry out in order to solve the above problem, is added to energy-absorbing on the basis of above-mentioned crumple Force system
Steel band, the energy-absorbing steel band of crumple fluctuation can be effectively reduced and be equipped with the motorcar electric of the energy-absorbing steel band by providing one kind
Power-assisted steering device tubular column system.To achieve the goals above, the utility model provides following technical solution:
<structure one>
Energy-absorbing steel band provided by the utility model is mounted on the outer tubing string installation of vehicle electric power-assisted steering device tubular column system
On bracket, with following technical characteristic: two suctions being mounted on including energy-absorbing broadband and integrated molding on the energy-absorbing broadband
It can faciola.Wherein, energy-absorbing broadband includes the horizontal segment being in contact with mounting bracket bottom end and presss from both sides with horizontal segment in 130~160 °
The bending section at angle；Energy-absorbing faciola includes the arc section and arc section that mounting bracket side is integrally formed and wrapped with bending section
Integrally formed changeover portion and with the integrally formed straight line slice section of changeover portion, be divided into 2 between changeover portion and mounting bracket~
3mm。
Energy-absorbing steel band in the utility model when providing crumple power, first gradually evened up by arc section, then drives bending
Section is close to outer column mounting bracket bottom end.The interval of 2~3mm between changeover portion and mounting bracket is to guarantee crumple initial force not
It excessive can lead to not crumple, the setting in energy-absorbing broadband can play the work for stablizing compensation crumple power initial value and steady-state value drop
With meeting requirement of the main engine plants to crumple energy-absorbing.
In the utility model, the interval of 2~3mm between changeover portion and mounting bracket is determined by test, is spaced too big
Be unfavorable for energy-absorbing steel band installation stablize, interval too it is small be easy to cause crumple initial force excessive and can not crumple.Horizontal segment and folding
It is in 130~160 ° of angles between curved segment, the installation be conducive between arc section and mounting bracket side matches.
Preferably, in energy-absorbing steel band provided by the utility model, the width in energy-absorbing broadband is 4.8~5mm, with a thickness of
1.5~1.6mm, the width of energy-absorbing faciola are 1.2mm, it is ensured that energy-absorbing broadband optimally play stablize compensation crumple power initial value with
The effect of steady-state value drop.
Preferably, in energy-absorbing steel band provided by the utility model, the radian of arc section is 35~45 °, arc length is 6~
8mm。
<structure two>
The utility model additionally provides a kind of vehicle electric power-assisted steering device tubular column system, has such technical characteristic:
Including outer tubing string, interior tubing string, outer column mounting bracket and the energy-absorbing steel band being mounted on outer column mounting bracket.Wherein, it inhales
Energy steel band is the described in any item energy-absorbing steel bands of structure one；Outer column mounting bracket includes u-bracket and is mounted on u-bracket
The energy-absorbing broadband of the grillage on top, energy-absorbing steel band is in contact with the bottom end of u-bracket, and the arc section of energy-absorbing faciola wraps U type branch
The side of frame and the grillage, straight line slice section extend fixation in the groove of grillage.
Preferably, in vehicle electric power-assisted steering device tubular column system provided by the utility model, arc section and u-bracket
Arc backing plate is filled between the side of grillage.When energy-absorbing steel band is mounted, arc backing plate plays the work of support arc section
With, it is ensured that the interval between arc section and mounting bracket, during arc section provides crumple power and is flattened, the arc backing plate quilt
It flattens.
Preferably, it in vehicle electric power-assisted steering device tubular column system provided by the utility model, is provided in groove routed
Contracting bolt, the crumple bolt are located between the changeover portion of two energy-absorbing faciolas.When collide crumple when, start 1 in crumple~
In 3mm, which rubs with mounting bracket, and auxiliary provides crumple power.
Preferably, in vehicle electric power-assisted steering device tubular column system provided by the utility model, u-bracket bottom end is symmetrical
There are two injection molding pin, this two injection molding pins to be fixed by passing through the bolt of grillage and u-bracket upper end cover for installation.When touching
When hitting crumple, start in 1~3mm in crumple, which forms shearing force to mounting bracket, and auxiliary provides crumple power.
The action and effect of utility model
Energy-absorbing steel band and vehicle electric power-assisted steering device tubular column system provided by the utility model are imitated with following technology
Fruit:
On the one hand, due to energy-absorbing broadband, and energy-absorbing broadband includes the horizontal segment being in contact with mounting bracket bottom end
And it can either play stable compensation crumple power initial value in the bending section of 130~160 ° of angles with horizontal segment and be fallen with steady-state value
The effect of difference stablizes crumple power, meets requirement of the main engine plants to crumple energy-absorbing, and be conducive to energy-absorbing steel band and mounting bracket side
Between installation matching.
On the other hand, due to energy-absorbing faciola, and the energy-absorbing faciola includes being integrally formed and wrapping with bending section
The arc section of mounting bracket side, with the integrally formed changeover portion of arc section and with the integrally formed straight line slice of changeover portion
Section, is divided into 2~3mm, advantageously ensures that crumple initial force is not too big between changeover portion and mounting bracket, avoiding can not crumple
It happens.
Therefore, the energy-absorbing steel band in the utility model has good design targeting and robustness, is conducive to turn to
System collides the steady generation of crumple, meets requirement of the main engine plants to crumple energy-absorbing, also improves the safety of occupant.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the vehicle electric power-assisted steering device tubular column system in the utility model embodiment；
Fig. 2 is the cross section structure schematic diagram in the face A-A in Fig. 1；
Fig. 3 is the structural schematic diagram of the energy-absorbing steel band in the utility model embodiment.
Specific embodiment
The utility model is described in detail below with reference to embodiment and attached drawing.But the following example should not be regarded as to this
The limitation of utility model range.
Fig. 1 is the structural schematic diagram of the vehicle electric power-assisted steering device tubular column system in the utility model embodiment；Fig. 2 is
The cross section structure schematic diagram in the face A-A in Fig. 1.
As depicted in figs. 1 and 2, vehicle electric power-assisted steering device tubular column system 100 includes outer tubing string 1, outer tubing string installation branch
Frame 2, interior tubing string 3, retarder and electric machine assembly 4, energy-absorbing steel band 5, crumple bolt 6, injection molding pin 7, bolt 8 and arc backing plate 9.
Outer 1 front end of tubing string is connect with vehicle steering wheel, and the torque of transmitting driver's input, rear end passes through outer tubing string installation branch
Frame 2 is connect with interior tubing string 3, and interior 3 rear end of tubing string is connect with retarder and electric machine assembly 4.
Energy-absorbing steel band 5, crumple bolt 6, injection molding pin 7 are installed on outer column mounting bracket 2, have collectively constituted this implementation
Example steering system loses crumple system, and three cooperates, common to provide crumple power, it is ensured that occupant when colliding crumple
Safety.
Outer column mounting bracket 2 includes u-bracket 21 and the grillage 22 for being mounted on u-bracket top, energy-absorbing steel band 5
It is mounted on outer column mounting bracket 2 with lapped form, 6 main body of crumple bolt is found in the groove 221 of grillage 22, injection molding pin
7 are mounted on 21 bottom end of u-bracket by bolt 3.
Fig. 3 is the structural schematic diagram of the energy-absorbing steel band in the utility model embodiment.
As shown in figure 3, energy-absorbing steel band 5 includes energy-absorbing broadband 51 and is mounted on the energy-absorbing broadband 51 with being integrally formed
Two energy-absorbing faciolas 52.
Energy-absorbing broadband 51 includes horizontal segment 511 and bending section 512, and horizontal segment 511 connects with the bottom end of u-bracket 21
Touching, bending section 512 and horizontal segment are in 130~160 ° of angles, are spaced in intervals with the bottom end of u-bracket 21.
Energy-absorbing faciola 52 includes that ground arc section 521 and the integrally formed mistake of arc section 521 are integrally formed with bending section 512
Cross section 522 and with the integrally formed straight line slice section 523 of changeover portion 522.
As shown in Figure 1, arc section 521 wraps the side of u-bracket and grillage, and the side with u-bracket and grillage
Between be filled with arc backing plate 9.When energy-absorbing steel band is mounted, arc backing plate plays the role of supporting arc section, in arc section
During offer crumple power is flattened, which is driven plain；Changeover portion 522 provides arc section 521 and straight line slice section 523
Between transition, the changeover portion and between mounting bracket be spaced 2~3mm；Straight line slice section 523 is prolonged along 221 outer edge of groove
It stretches, free-end insertion is arranged in insertion groove 221a, realizes and fixes.Crumple bolt 6 be located exactly at two straight line slice sections 523 it
Between.
In the present embodiment, the interval of 2~3mm between changeover portion and mounting bracket determines that interval is too very much not by test
Conducive to energy-absorbing steel band installation stablize, interval too it is small be easy to cause crumple initial force excessive and can not crumple.Horizontal segment and bending
It is in 130~160 ° of angles between section, the installation be conducive between arc section and mounting bracket side matches.
The width in energy-absorbing broadband is 4.8~5mm, and with a thickness of 1.5~1.6mm, the width of energy-absorbing faciola is 1.2mm, circular arc
The radian of section is 35~45 °, and arc length is 6~8mm, it is ensured that energy-absorbing broadband, which is optimally played, stablizes compensation crumple power initial value and steady
The effect of state value drop.
Energy-absorbing steel band when providing crumple power, first gradually evened up by arc section, and bending section is then driven to be close to outer tubing string peace
Fill bracket bottom end.The interval of 2~3mm between arc section and mounting bracket is led to not with guaranteeing that crumple initial force is not too big
Crumple, the setting in energy-absorbing broadband can be played the role of stablizing compensation crumple power initial value and steady-state value drop, meet main engine plants
Requirement to crumple energy-absorbing.
When collide crumple when, energy-absorbing steel band, crumple bolt, injection molding pin and inside and outside string friction act as simultaneously
With, but crumple bolt, injection molding pin only start to work in 1~3mm in crumple, in the crumple stroke, crumple bolt and outer tube
Column mounting bracket rubs, and auxiliary provides crumple power, and injection molding pin forms shearing force to mounting bracket, and auxiliary provides crumple power.
Energy-absorbing steel band and inside and outside string friction whole process provide crumple power, but energy-absorbing steel band can to crumple power initial value and steady-state value it
Between drop compensate, to be not easy to control to inner and outer pipes column frictional force force value, fluctuate biggish defect and compensate.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, the utility model can also on the premise of not departing from the spirit and scope of the utility model
There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model is wanted
Protection scope is asked to be defined by appended claims and its equivalent.
Claims (7)
1. a kind of energy-absorbing steel band, is mounted on the outer column mounting bracket of vehicle electric power-assisted steering device tubular column system, feature
It is, comprising:
Energy-absorbing broadband and two energy-absorbing faciolas being mounted on being integrally formed on the energy-absorbing broadband,
Wherein, the energy-absorbing broadband include the horizontal segment being in contact with the outer column mounting bracket bottom end and with the level
Section is in the bending section of 130~160 ° of angles,
The energy-absorbing faciola includes arc section and the institute that the mounting bracket side is integrally formed and wrapped with the bending section
State the integrally formed changeover portion of arc section and with the integrally formed straight line slice section of the changeover portion, the changeover portion and described
2~3mm is divided between mounting bracket.
2. energy-absorbing steel band according to claim 1, it is characterised in that:
Wherein, the width in the energy-absorbing broadband is 4.8~5mm, and with a thickness of 1.5~1.6mm, the width of the energy-absorbing faciola is
1.2mm。
3. energy-absorbing steel band according to claim 1, it is characterised in that:
Wherein, the radian of the arc section is 35~45 °, and arc length is 6~8mm.
4. a kind of vehicle electric power-assisted steering device tubular column system comprising:
Outer tubing string, interior tubing string, outer column mounting bracket and the energy-absorbing steel band being mounted on the outer column mounting bracket,
Wherein, the energy-absorbing steel band is the described in any item energy-absorbing steel bands of claims 1 to 3,
The outer column mounting bracket includes u-bracket and the grillage for being mounted on the u-bracket top, the energy-absorbing steel band
Energy-absorbing broadband be in contact with the bottom end of the u-bracket, the arc section of energy-absorbing faciola wraps the u-bracket and the grillage
Side, straight line slice section extends fixation in the groove of the grillage.
5. vehicle electric power-assisted steering device tubular column system according to claim 4, it is characterised in that:
Wherein, arc backing plate is filled between the arc section and the u-bracket and the side of the grillage.
6. vehicle electric power-assisted steering device tubular column system according to claim 4, it is characterised in that:
Wherein, it is provided with crumple bolt in the groove, which is located between the changeover portion of two energy-absorbing faciolas.
7. vehicle electric power-assisted steering device tubular column system according to claim 4, it is characterised in that:
Wherein, the u-bracket bottom end is symmetrically installed there are two injection molding pin, this two injection moldings pin by across the grillage and
The bolt of the u-bracket upper end cover is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456132.5U CN209064178U (en) | 2018-09-06 | 2018-09-06 | A kind of energy-absorbing steel band and vehicle electric power-assisted steering device tubular column system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456132.5U CN209064178U (en) | 2018-09-06 | 2018-09-06 | A kind of energy-absorbing steel band and vehicle electric power-assisted steering device tubular column system |
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| Publication Number | Publication Date |
|---|---|
| CN209064178U true CN209064178U (en) | 2019-07-05 |
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ID=67091682
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821456132.5U Active CN209064178U (en) | 2018-09-06 | 2018-09-06 | A kind of energy-absorbing steel band and vehicle electric power-assisted steering device tubular column system |
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| CN (1) | CN209064178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116262514A (en) * | 2021-12-15 | 2023-06-16 | 吉林世宝机械制造有限公司 | Four adjustable tubular columns with electric power assisting |
-
2018
- 2018-09-06 CN CN201821456132.5U patent/CN209064178U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116262514A (en) * | 2021-12-15 | 2023-06-16 | 吉林世宝机械制造有限公司 | Four adjustable tubular columns with electric power assisting |
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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: 201814, No. 289, 100 Road, Anting Town, Shanghai, Jiading District Patentee after: Zeifu Automotive Technology (Shanghai) Co., Ltd. Address before: 201814, No. 289, 100 Road, Anting Town, Shanghai, Jiading District Patentee before: Tianhe Automotive Technology (Shanghai) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |