CN102030029B - Energy-absorbing steering tubular column - Google Patents
Energy-absorbing steering tubular column Download PDFInfo
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- CN102030029B CN102030029B CN 201010568682 CN201010568682A CN102030029B CN 102030029 B CN102030029 B CN 102030029B CN 201010568682 CN201010568682 CN 201010568682 CN 201010568682 A CN201010568682 A CN 201010568682A CN 102030029 B CN102030029 B CN 102030029B
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- described upper
- damping
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- steering
- column
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- 238000013016 damping Methods 0.000 claims abstract description 96
- 238000001746 injection moulding Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses an energy-absorbing steering tubular column, which belongs to the field of automobiles. The steering tubular column comprises an upper column tube, a lower column tube, an upper steering shaft, a lower steering shaft, an upper mounting bracket, a lower mounting bracket and a damping device. Through the damping device, energy is absorbed by secondary crumpling of the steering tubular column to reduce collision peak force; when secondary collision takes place, an upper steering shaft assembly and a lower steering shaft assembly slide relative to each other, and the air in the lower steering shaft is compressed and overflowed out of constant flow holes in an upper damping ring and a lower damping ring, so energy is effectively absorbed in the entire crumpling process, the time for acting collision force on a human body is prolonged, and the safety of a driver is protected.
Description
Technical field
The invention belongs to automotive field, particularly a kind of energy-absorbing steering tubular column.
Background technology
Steering column is the important component part of the steering control mechanism of automobile steering system, and it changes or recover the travel direction of automobile together with other mechanisms.
Along with the customer requires to increase to the collision safety of automobile; each main engine plants are also more and more higher to the requirement of passive security technology when automobile design; demand based on protection driver in collision; generally adopt at present energy-absorbing steering tubular column; to ensure that steering column is when collision is compressed; bearing circle displacement backward must not surpass 127mm, and when guaranteeing secondary collision simultaneously, bearing circle is no more than 11123N to the impact force of chaufeur chest.
As shown in Figure 6, energy-absorbing steering tubular column comprises upper and lower column jecket 1-2,1-8, upper and lower steering shaft 1-3,1-7, and upper and lower mounting bracket 1-6,1-9.Wherein, by the coaxial installation of spline, and fix by the injection moulding pin between upper steering shaft 1-3 and lower steering shaft 1-7.Upper steering shaft 1-3 is arranged in upper column jecket 1-3 by head bearing 1-1.Lower steering shaft 1-7 is arranged in lower column jecket 1-8 by lower bearing 1-10.Upper mounting bracket 1-6 is fixedly mounting cast aluminium by injection moulding pin 1-5 and is pulling piece 1-4, and cast aluminium pulls piece 1-4 and is bolted on the dashboard cross member support.
when automobile bumps, driver's equidirectional dish under the effect of self inertia clashes into, impact is delivered to steering shaft 1-5, when application force reaches certain numerical value, by shearing disconnected injection moulding pin 1-5, can disconnect and pull being connected of piece 1-4 and upper mounting bracket 1-6, steering column is thrown off with vehicle body, increase along with application force, on, lower steering shaft 1-3, the injection moulding pin of 1-7 also is sheared disconnected, this moment is by upper, lower steering shaft 1-3, the part impact is eliminated in the friction of the relative sliding between 1-7, by upper, lower steering shaft 1-3, bearing circle displacement backward when the relative shift between 1-7 reduces the collision compression, assurance is less than the requirement of 127mm.
In realizing process of the present invention, the contriver finds that there is following problem at least in prior art:
Be subjected to the structural limitations of present energy-absorbing steering tubular column; steering column is mainly to realize energy-absorbing by the pressure-riveting process of upper and lower column jecket; absorb collision energy and mainly rely on friction force consumption; the finite energy that consumes; can't be with the less scope that is controlled at of crumple power; can't guarantee steering-column tube secondary crumple energy-absorbing, most Impact energy is still absorbed by chaufeur self, can not form good protection to the chaufeur health.
Summary of the invention
The finite energy that consumes in order to overcome energy-absorbing steering tubular column structure of the prior art; can't guarantee steering-column tube secondary crumple energy-absorbing; make most Impact energy be absorbed by chaufeur self; cause to form the chaufeur health problem of good protection; the embodiment of the present invention provides a kind of energy-absorbing steering tubular column; can effectively absorb energy, extend the time that impact force acts on human body, protection driver safety.Described technical scheme is as follows:
a kind of energy-absorbing steering tubular column, comprise, lower column jecket, on, lower steering shaft, and on, lower mounting bracket, wherein, upper steering shaft is with the coaxial installation of lower steering shaft and fix by the injection moulding pin, on, lower steering shaft is arranged on respectively by bearing separately, in lower column jecket, on, lower column jecket is respectively with upper, lower mounting bracket captive joint, upper mounting bracket is fixedly mounting by the injection moulding pin and is pulling piece, pull on the overarm brace that piece is bolted on Automobile instrument, described steering column comprises that also one is separately positioned on described, damping arrangement in lower column jecket, described damping arrangement is used for whole crumple energy-absorbing.
Particularly, described damping arrangement comprises the upper and lower damping ring that is separately positioned on the flexibility in described upper and lower column jecket, described upper and lower damping ring respectively with described upper and lower steering shaft interference fit, described upper and lower damping ring is the location division axial location by described upper and lower column jecket respectively, be equipped with the permanent current hole in described upper and lower damping ring, described upper and lower damping ring and described upper and lower column jecket and described upper and lower steering shaft form damping cavity.
Further, in order to reach energy-absorbing step by step, all establish damping hole in described upper and lower damping ring, described damping hole is up-small and down-big hole.
Further, in order to reach good energy-absorbing effect, the described permanent current hole in described upper and lower damping ring and described damping hole are a plurality of, and uniform along the center of described upper and lower damping ring respectively.
Further, in order to reach better energy-absorbing effect, described permanent current hole and described damping hole in described upper damping ring are arranged on different circumference, and are interval rule setting.
Further, in order to reach better energy-absorbing effect, described permanent current hole and described damping hole in described lower damping ring are arranged on identical circumference, and are interval rule setting.
Particularly, as preferably, the location division of described upper and lower column jecket is to be respectively the step that is arranged on described upper and lower column jecket inside.
Particularly, as preferably, the location division of described upper and lower column jecket is to be respectively the undergauge that is arranged in described upper and lower column jecket.
Particularly, as preferably, described upper steering shaft with lower steering shaft by the coaxial installation of spline.
Particularly, as preferably, described upper and lower damping ring all adopts rubber to make.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: compared to existing technology; the embodiment of the present invention is by increasing a damping arrangement in upper and lower column jecket; realize at whole crumple energy-absorbing by damping arrangement; to reduce the collision peak force; when secondary collision; relative sliding between upper steering shaft assembly and lower steering shaft assembly; air in lower steering shaft is compressed; overflow in air damping device; realization is at effective energy-absorbing of whole crumple; extend the time that impact force acts on human body, protection driver safety.
Description of drawings
Fig. 1 is the integral structure cutaway view of the energy-absorbing steering tubular column that provides of the embodiment of the present invention;
Fig. 2 is the front view of the upper damping ring that provides of the embodiment of the present invention;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the front view of the lower damping ring that provides of the embodiment of the present invention;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is the energy-absorbing steering tube column structural representation of prior art.
In Fig. 1-5: 1 head bearing, column jecket on 2, damping ring on 3, steering shaft on 4,5 pull piece, 6 first injection moulding pins, mounting bracket on 7,8 times steering shafts, 9 times column jeckets, 10 times damping rings, 11 times mounting brackets, 12 lower bearings, 13 second injection moulding pins, 14 first damping holes, the 14 ' second damping hole, 15 first permanent current holes, the 15 ' second permanent current hole;
In Fig. 6: the 1-1 head bearing, the upper column jecket of 1-2, the upper steering shaft of 1-3, the 1-4 cast aluminium pulls piece, 1-5 injection moulding pin, the upper mounting bracket of 1-6, steering shaft under 1-7, column jecket under 1-8, mounting bracket under 1-9,1-10 lower bearing.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of energy-absorbing steering tubular column that the embodiment of the present invention provides comprises column jecket 2, lower column jecket 9, upper steering shaft 4, lower steering shaft 8, and upper mounting bracket 7, lower mounting bracket 11, and be arranged on damping arrangement in column jecket 2, lower column jecket 9.
Wherein, upper steering shaft 4 and the coaxial installation of lower steering shaft 8 and fixing by the second injection moulding pin 13, upper steering shaft 4 is arranged in upper column jecket 2 by head bearing 1, and lower steering shaft 8 is arranged in lower column jecket 9 by lower bearing 12.Upper column jecket 2 is captiveed joint with lower mounting bracket 11 with upper mounting bracket 7 respectively with lower column jecket 9.Upper mounting bracket 7 is fixedly mounting by the first injection moulding pin 6 and is pulling piece 5, pulls on the overarm brace that piece 5 is bolted on Automobile instrument.
Described damping arrangement comprises, is separately positioned on upper damping ring 3 and the lower damping ring 10 of the flexibility in column jecket 2 and lower column jecket 9.Wherein, upper damping ring 3 and lower damping ring 10 respectively with upper steering shaft 4 and lower steering shaft 8 interference fit, and the location division axial location by upper column jecket 2 and lower column jecket 9 respectively.Be equipped with the permanent current hole in upper damping ring 3 and lower damping ring 10, i.e. the first permanent current hole 15 (can referring to Fig. 3) and the second permanent current hole 15 ' (can referring to Fig. 5).Upper damping ring 3, lower damping ring 10 form damping cavity with upper column jecket 2, lower column jecket 9 and upper steering shaft 4, lower steering shaft 8.
Described damping arrangement mainly plays two effects, and the one, when flowing out, pressurized air produces dumping force, in order to control the upper relative sliding velocity of lower shaft when colliding, with the control action time; The 2nd, can the decay vibration of column jecket and steering shaft of flexible damping ring.
The embodiment of the present invention is by increasing by one group of damping arrangement; realization is at whole crumple energy-absorbing; to reduce the collision peak force; when secondary collision, relative sliding between upper steering shaft assembly and lower steering shaft assembly, the air in lower steering shaft is compressed; air overflows in the permanent current hole from upper and lower damping ring; realization extends at effective energy-absorbing of whole crumple the time that impact force acts on human body, protection driver safety.
Further, in order to reach the effect of good energy-absorbing step by step, as shown in Figure 3, be provided with the first damping hole 14 in described upper damping ring 3, described the first damping hole 14 is up-small and down-big hole.Therefore when energy is very large, the first damping hole 14 is that the coniform hole part has distortion, at utmost energy-absorbing.
Further, in order to reach good energy-absorbing effect, as shown in Figure 2, described the first permanent current hole 15 in described upper damping ring 3 and described the first damping hole 14 are a plurality of, and uniform along the center of described upper damping ring 3 respectively.
Further, in order to reach better energy-absorbing effect, (also can referring to Fig. 3) as shown in Figure 2, described the first permanent current hole 15 and described the first damping hole 14 in described upper damping ring 3 are arranged on different circumference, and are interval rule setting.
Further, in order to reach the effect of good energy-absorbing step by step, as shown in Figure 5, establish the second damping hole 14 ' in described lower damping ring 10, described the second damping hole 14 ' is up-small and down-big hole.Therefore when energy is very large, the first damping hole 14 is that the coniform hole part has distortion, at utmost energy-absorbing.
Further, in order to reach good energy-absorbing effect, as shown in Figure 4, described the second permanent current hole 15 ' in described lower damping ring 10 and described the second damping hole 14 ' are a plurality of, and uniform along the center of described lower damping ring 10 respectively.
Further, in order to reach better energy-absorbing effect, (also can referring to Fig. 3) as shown in Figure 4, described the second permanent current hole 15 ' and described the second damping hole 14 ' in described lower damping ring 10 are arranged on identical circumference, and are interval rule setting.
Particularly, the location division of described upper column jecket 2 and lower column jecket 9 is to be respectively the step that is arranged on described upper column jecket 2 and lower column jecket 9 inside.During concrete enforcement, can also adopt undergauge and the structure of packing ring is set.In this example, as shown in Figure 1, the undergauge structure is preferably adopted in the location division of described upper column jecket 2, lower column jecket 9, has the characteristics of convenient processing.
Particularly, as preferably, described upper steering shaft 4 by the coaxial installation of spline, has advantages of stable drive with lower steering shaft 8.
Particularly, as preferably, described upper damping ring 3, lower damping ring 10 all adopt rubber to make.
Particularly, as preferably, described upper column jecket 2, lower column jecket 9 respectively with described upper mounting bracket 7, lower mounting bracket 11 between captive joint and be welding, therefore have advantages of convenient processing.
during secondary collision, human body rushes at bearing circle under the effect of inertia, this moment, the energy-absorbing of steering column was extremely important, the endergonic process of the embodiment of the present invention in such cases is as follows: referring to Fig. 1, the equidirectional hair updo of human body is given birth to the contact bearing circle and is produced elastic deformation absorption portion energy, when the application force of human body and bearing circle reaches when cutting off the first injection moulding pin 6 that pulls piece 5 places, the piece 5 that pulls that is connected with dashboard cross member separates with upper mounting bracket 7, bearing circle and steering column are completed collision energy-absorbing for the first time like this, increase along with axial force, the second injection moulding pin 13 at steering shaft place is cut off, complete the secondary buffer energy-absorbing, whole like this steering column moves down, at this moment go up mounting bracket 7 and upper column jecket 2 together moves down, air in the damping cavity that damping arrangement forms is compressed, a part is by the first permanent current hole 15, the second permanent current hole 15 ' and the first damping hole 14, the second damping hole 14 ' is discharged, guarantee moving axially of steering-column tube, simultaneously due to the first uniform damping hole 14 of annular in upper damping ring 3 and lower damping ring 10, the existence of the second damping hole 14 ', most collision energy is dissipated, energy-absorbing when guaranteeing the tubing string crumple like this, reduced the injury that chaufeur is subject to.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. energy-absorbing steering tubular column, comprise, lower column jecket, on, lower steering shaft, and on, lower mounting bracket, wherein, upper steering shaft is with the coaxial installation of lower steering shaft and fix by the injection moulding pin, on, lower steering shaft is arranged on respectively by bearing separately, in lower column jecket, on, lower column jecket is respectively with upper, lower mounting bracket captive joint, upper mounting bracket is fixedly mounting by the injection moulding pin and is pulling piece, pull on the overarm brace that piece is bolted on Automobile instrument, described steering column also comprise one be arranged on described on, damping arrangement in lower column jecket, described damping arrangement is used for whole crumple energy-absorbing, it is characterized in that,
Described damping arrangement comprises the upper and lower damping ring that is separately positioned on the flexibility in described upper and lower column jecket, described upper and lower damping ring respectively with described upper and lower steering shaft interference fit, described upper and lower damping ring is the location division axial location by described upper and lower column jecket respectively, be equipped with the permanent current hole in described upper and lower damping ring, described upper and lower damping ring and described upper and lower column jecket and described upper and lower steering shaft form damping cavity.
2. steering column as claimed in claim 1, is characterized in that, all establishes damping hole in described upper and lower damping ring, and described damping hole is up-small and down-big hole.
3. steering column as claimed in claim 2, is characterized in that, the described permanent current hole in described upper and lower damping ring and described damping hole are a plurality of, and uniform along the center of described upper and lower damping ring respectively.
4. steering column as claimed in claim 3, is characterized in that, described permanent current hole and described damping hole in described upper damping ring are arranged on different circumference, and be interval rule setting.
5. steering column as described in claim 3 or 4, is characterized in that, described permanent current hole and described damping hole in described lower damping ring are arranged on identical circumference, and be interval rule setting.
6. steering column as claimed in claim 1, is characterized in that, the location division of described upper and lower column jecket is respectively the step that is arranged on described upper and lower column jecket inside.
7. steering column as claimed in claim 1, is characterized in that, the location division of described upper and lower column jecket is respectively the undergauge that is arranged in described upper and lower column jecket.
8. steering column as claimed in claim 1, is characterized in that, described upper steering shaft passes through the coaxial installation of spline with lower steering shaft.
9. steering column as claimed in claim 1, is characterized in that, described upper and lower damping ring all adopts rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568682 CN102030029B (en) | 2010-11-26 | 2010-11-26 | Energy-absorbing steering tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568682 CN102030029B (en) | 2010-11-26 | 2010-11-26 | Energy-absorbing steering tubular column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102030029A CN102030029A (en) | 2011-04-27 |
| CN102030029B true CN102030029B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010568682 Active CN102030029B (en) | 2010-11-26 | 2010-11-26 | Energy-absorbing steering tubular column |
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| CN (1) | CN102030029B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104657B (en) * | 2011-11-11 | 2015-03-18 | 北汽福田汽车股份有限公司 | Torsional vibration absorber |
| JP6241652B2 (en) | 2013-08-21 | 2017-12-06 | 株式会社ジェイテクト | Steering device |
| CN104002854A (en) * | 2014-06-16 | 2014-08-27 | 奇瑞汽车股份有限公司 | Energy absorption automotive steering column assembly |
| CN105752150A (en) * | 2016-02-24 | 2016-07-13 | 北京汽车研究总院有限公司 | Steering column device and automobile |
| CN106004985B (en) * | 2016-05-26 | 2018-07-03 | 奇瑞汽车股份有限公司 | A kind of steering column, steering mechanism and automobile |
| CN107826004A (en) * | 2017-12-08 | 2018-03-23 | 清华大学苏州汽车研究院（相城） | A kind of lateral side protection and child safety seat for child safety seat |
| DE102018202456A1 (en) | 2018-02-19 | 2019-08-22 | Audi Ag | Steering shaft for a steering of a motor vehicle, in particular a passenger car, as well as motor vehicles |
| CN109080694A (en) * | 2018-06-07 | 2018-12-25 | 奇瑞汽车股份有限公司 | A kind of steering column and steering mechanism, automobile with good crumple characteristic |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2288123Y (en) * | 1996-05-03 | 1998-08-19 | 裴兰贵 | Safety steering device |
| CN1504371A (en) * | 2002-11-28 | 2004-06-16 | ������������ʽ���� | Steering apparatus |
| JP2007099094A (en) * | 2005-10-05 | 2007-04-19 | Toyota Motor Corp | Steering column support structure |
| CN101298254A (en) * | 2008-06-20 | 2008-11-05 | 重庆长安汽车股份有限公司 | Automobile energy-absorbing steering tube column |
| CN101341345A (en) * | 2006-04-27 | 2009-01-07 | 日本精工株式会社 | Fastening tool, and steering device |
| CN201193048Y (en) * | 2007-12-27 | 2009-02-11 | 奇瑞汽车股份有限公司 | Vehicle steering tube pole assembly |
| CN101758851A (en) * | 2010-03-01 | 2010-06-30 | 奇瑞汽车股份有限公司 | Automobile steering column with energy-absorbing structure |
-
2010
- 2010-11-26 CN CN 201010568682 patent/CN102030029B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2288123Y (en) * | 1996-05-03 | 1998-08-19 | 裴兰贵 | Safety steering device |
| CN1504371A (en) * | 2002-11-28 | 2004-06-16 | ������������ʽ���� | Steering apparatus |
| JP2007099094A (en) * | 2005-10-05 | 2007-04-19 | Toyota Motor Corp | Steering column support structure |
| CN101341345A (en) * | 2006-04-27 | 2009-01-07 | 日本精工株式会社 | Fastening tool, and steering device |
| CN201193048Y (en) * | 2007-12-27 | 2009-02-11 | 奇瑞汽车股份有限公司 | Vehicle steering tube pole assembly |
| CN101298254A (en) * | 2008-06-20 | 2008-11-05 | 重庆长安汽车股份有限公司 | Automobile energy-absorbing steering tube column |
| CN101758851A (en) * | 2010-03-01 | 2010-06-30 | 奇瑞汽车股份有限公司 | Automobile steering column with energy-absorbing structure |
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| CN102030029A (en) | 2011-04-27 |
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