CN101758851A - Automobile steering column with energy-absorbing structure - Google Patents
Automobile steering column with energy-absorbing structure Download PDFInfo
- Publication number
- CN101758851A CN101758851A CN201010115539A CN201010115539A CN101758851A CN 101758851 A CN101758851 A CN 101758851A CN 201010115539 A CN201010115539 A CN 201010115539A CN 201010115539 A CN201010115539 A CN 201010115539A CN 101758851 A CN101758851 A CN 101758851A
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- Prior art keywords
- mandrel
- last
- column
- car steering
- steering tube
- 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.)
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- 238000001746 injection moulding Methods 0.000 claims description 8
- 230000004323 axial length Effects 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention relates to an automobile steering system, in particular to an automobile steering column with an energy-absorbing structure. The automobile steering column comprises an upper pipe column and a lower pipe column which are sleeved with each other end to end, and an upper mandrel and a lower mandrel positioned in the upper pipe column and the lower pipe column; the upper pipe column, the lower pipe column, the upper mandrel and the lower mandrel are arranged coaxially; the upper mandrel and the lower mandrel are connected with an injection pin through a spline; the upper mandrel and the upper pipe column, and the lower mandrel and the lower pipe column form rotation matching through bearings respectively; one mandrel is of a tubular shape of which one end is closed; the opening end of the mandrel is sleeved with the other mandrel so as to enclose a substantially closed cavity in the inner cavity of the mandrel; and the closed cavity is provided with a pressure releasing mechanism. Thus, when an automobile is collided, the upper mandrel and the lower mandrel compress air therein to absorb energy of the collision so as to play a role in buffering; and the pressure releasing mechanism can release a certain amount of air to release the pressure of the cavity in the process of compressing air so as to prevent the mandrel from rebounding upwards to hurt people in the automobile due to extensive pressure. The automobile steering column with the energy-absorbing structure has the characteristics of simple and smooth structure, and light dead weight, and can be arranged and used conveniently.
Description
Technical field
The present invention relates to wheel steering system, be specifically related to a kind of car steering tube column with endergonic structure.
Background technology
Collision happens and when causing the collision of chaufeur and bearing circle, the crumple of length direction can take place the car steering tube column with endergonic structure, thereby the collision between buffering chaufeur and the bearing circle absorb the energy of collision.
Modal endergonic structure is to be provided with and car body bonded assembly elastic element along the steering column length direction, as spring etc., during chaufeur collision direction dish, elastic element is compressed or stretches and absorb Impact energy, plays the effect of colliding between buffering chaufeur and the bearing circle.But the spring of these endergonic structures or other elastic elements must make the steering column structure become complicated, conducting oneself with dignity increases, and not only are not easy to install, and the expenditure of energy when also increasing normal vehicle operation is unfavorable for energy-saving and emission-reduction.
Summary of the invention
The object of the present invention is to provide a kind of car steering tube column with endergonic structure, this steering column is simple in structure, from heavy and light, and is easy to install.
The technical solution adopted in the present invention is: a kind of car steering tube column with endergonic structure, comprise the end socket on, lower tubular column, on, be provided with in the cavity of lower tubular column, following mandrel, on, there is one to be tubulose and entangle another mandrel in the following mandrel, the socket Duan Weijian of two mandrels cooperates, the injection moulding pin is radially worn the socket section position that is connected in both, last mandrel and last tubing string, following mandrel and lower tubular column constitute normal-running fit by bearing respectively, last tubing string connects upper bracket, lower tubular column connects lower bracket, the sealing of described tubulose mandrel one end, the other end entangle another mandrel and within it the chamber surround roughly fully enclosed cavity, described closed cavity has pressure relief mechanism.
As shown from the above technical solution: upper and lower mandrel of the present invention is similar to the cooperation of cylinder piston rod, when chaufeur crash direction dish, the injection moulding pin is cut off, last tubing string separates with upper bracket or upper bracket separates with car body, last tubing string and last mandrel move downward, simultaneously the gas of tubulose mandrel inner chamber is compressed and absorbs the energy of bump, play the effect of buffering collision of closed, and pressure relief mechanism can just discharge a certain amount of gas in the process of pressure gas and giving the cavity pressure release, causes mandrel upwards to rebound and injures the occupant in order to avoid pressure is excessive.The present invention's smoothness simple in structure and reasonably reduced the volume and the deadweight of steering column is installed and used convenient; And because the energy consumption of deadweight reduction vehicle ' is also lower.
Description of drawings
Fig. 1 is a sectional structure scheme drawing of the present invention;
Fig. 2 is a block diagram of going up mandrel;
Fig. 3 is the block diagram of following mandrel.
The specific embodiment
A kind of car steering tube column as shown in Figure 1 with endergonic structure, comprise coaxial arrangement on, lower tubular column 21,22 and be positioned at its on, following mandrel 11,12, last tubing string 21 hypomeres entangle lower tubular column 22 epimeres, following mandrel 12 covers of tubulose are lived in mandrel 11 hypomeres, two mandrels 11,12 by socket face upper edge axial arranged key and groove formation axial slip, the circumferentially cooperation of coaxial rotation, injection moulding pin 16 is radially worn the socket section position that is connected in both, last mandrel 11 and last tubing string 21, following mandrel 12 constitutes normal-running fit by bearing respectively with lower tubular column 22, last tubing string 21 connects upper bracket 23, upper bracket 23 is connected with car body by the injection moulding pin of prior art, lower tubular column 22 connects lower bracket 24, following mandrel 12 lower end closed, its open end cover live in mandrel 11 hypomeres and within it the chamber surround roughly fully enclosed cavity, described closed cavity has the pressure relief mechanism that aperture 13 or check valve constitute, the present invention for the aperture 13 that is provided with simple in structure as pressure relief mechanism.
During normal vehicle operation, the key between the upper and lower mandrel 11,12 cooperates the torque and the control vehicle that are used for the direction of transfer dish to turn to; When collision takes place, chaufeur crash direction dish, injection moulding pin and injection moulding pin 16 on the upper bracket 23 can be thrust by impulsive force, last mandrel 11 and last tubing string 21 move down along the axle core, be compressed and absorb the energy of bump with the gas of mandrel 12 inner chambers at present, play the effect of buffering collision of closed, this is similar to the compression stroke of a cylinder, and mechanical energy is converted to the interior energy that is compressed gas; And pressure relief mechanism can be discharged a certain amount of gas and given the cavity pressure release in the process of pressure gas, causes mandrel 11 upwards to rebound and injures the occupant in order to avoid cavity pressure is excessive.The present invention's smoothness simple in structure, the deadweight little, can install easily and use; And because deadweight obviously reduces, the oil consumption under the normal vehicle operation state also must reduce so.
Need to prove: above-mentioned " on ", the qualification of D score position describes with position shown in scheming, its reverse arrangement also is fine, in other words, the relation of being nested inside and outside 21,22 and two mandrels 11,12 of two tubing strings can be exchanged, can be that entangling of top is following, also can be the following top of entangling, only otherwise influence that mandrel rotates and last tubing string 21, last mandrel 11 move down and get final product.
As optimized technical scheme, the external diameter of lower tubular column 22 of the present invention is less than the internal diameter of last tubing string 21, promptly go up tubing string 21 hypomeres and entangle lower tubular column 22 epimeres, upper bracket 23 can be arranged in according to the connection location with car body on any part of tubing string 21 outer walls like this, does not move down when collision and can not influence tubing string 21; 12 covers of mandrel down of the present invention are lived in mandrel 11, mandrel 12 is the pipe shape of lower end closed under being exactly specifically, the hypomere of last mandrel 11 inserts down in the mandrel 12, because large diameter mandrel is positioned at the overall center of gravity that the bottom can reduce car body from great, makes vehicle ' more steady.The lower end of last mandrel 11 roughly is positioned at mandrel 12 middle parts down, and its profile and following mandrel 12 inner wall shape air-tight fit, to guarantee gas compression effect and energy-absorbing effect, auxiliary section below is fully enclosed cavity roughly, this top, auxiliary section is the spline fitted section, during collision, last mandrel 11 downward mandrels 12 bottoms motion and compress the gas of its inner chamber, pressure relief mechanism is on the hypomere tube wall of mandrel 12 down, several apertures 13 that just descend mandrel 12 lower ends to be provided with to the axial wall between last mandrel 11 lower ends, furthermore: be preferably in this section axial wall upper edge axial length direction and evenly arrange several apertures 13, making all has aperture 13 in work in the whole compression process, make pressure release more steady, can determine according to actual vehicle test as for concrete perforate number and spacing.
Further: following mandrel 12 can be set to the ladder tubulose, and as shown in Figure 3, its hypomere is thick, and epimere is thin, is reducer between the two, is similar to the shape of cartridge case; The axle body thickness of last mandrel 11 is identical with the internal diameter of following mandrel 12 epimeres, last mandrel 11 lower ends are piston head 14, piston head 14 was positioned at the top of mandrel 12 hypomeres down when assembling was finished, the just whole middle part of mandrel 12 down, can also be provided for storing the oil-bearing structure of lubricating oil on the sidewall of piston head 14, the circumferential groove 15 of circumferential perforation is set as the sidewall along piston head 14, as shown in Figure 2, can avoid occurring between piston head 14 and following mandrel 12 inwalls situation of clamping stagnation like this, make the process of pressure gas more smooth and easy; The bottom end cover 25 of following mandrel 12 lower ends for being threaded with it, so that the assembling of upper and lower mandrel 11,12, during assembling, last mandrel 11 integral body are by mandrel 12 lower ends insertion down, then by mandrel 12 upper ends extraction down, make piston head 14 be positioned at the upper position of mandrel 12 hypomeres down, and then screw down the bottom end cover 25 of mandrel 12.Following mandrel 12 three stage structures mainly are to have guaranteed that the hypomere inner chamber has enough volumes so that hold air, the effect of compression inner chamber gas and energy-absorbing during with the assurance collision; Reduced simultaneously the diameter of epimere part again, this has also just reduced by two mandrels significantly, especially goes up the volume and weight of mandrel 11, has reduced the gross weight of vehicle.
Further, among the present invention, last mandrel 11 hypomeres and following mandrel 12 epimere spline fitted, going up mandrel 11 hypomeres exactly specifically is castellated shaft, and following mandrel 12 epimeres are the splined hole that cooperates with it, so in the axial direction, the symmetrical configuration of steering column is even, and it is more comfortable that the driver is operated; And the length of spline fitted section, that is to say to the following distance of mandrel 12 lower ends greater than last mandrel 11 lower ends: the miles of relative movement the when length of spline fitted section is greater than the following mandrel 12 inner chamber gases of mandrel 11 compressions.After can guaranteeing that like this compression process finishes, just when last mandrel 11 lower ends and the conflict of following mandrel 12 lower ends, upper and lower mandrel 11,12 still has spline fitted together, guarantees that vehicle still can turn to, and this all is very favourable to the post-processing of accident and the maintenance of vehicle.
In addition, the present invention considers and turns to the tubing string lower end not arrive to vehicle chassis in some vehicle, for moving down along axis, following mandrel 12 in the process that prevents pressure gas influences energy-absorbing effect, the sheathed lower bearing 26 of mandrel 12 hypomeres down of the present invention, and following mandrel 12 and lower bearing 26 interference fit, guarantee following mandrel 12 and lower bearing 26 stationkeeping in the axial direction, footpath mandrel 12 up and down can be rotated around the axle core, lower bearing 26 is kept out with lower tubular column 22 lower ends and is cooperated, as shown in Figure 1: lower bearing 26 is positioned at the inboard of lower tubular column 22 lower ends, and the orifice diameter of lower tubular column 22 lower ends is less than the diameter of lower bearing 26, like this, the lower end closing in portion of lower tubular column 22 keeps out the lower surface of lower bearing 26 and limits lower bearing 26 and move down, and lower bearing 26 has also just played the down effect that moves down of mandrel 12 of restriction.
In sum: the present invention can not only absorb collision energy reliably, the collision of buffering chaufeur and bearing circle; And simple in structure, from heavy and light, can install easily and use, can also change the injection moulding pin and reuse, and reduce vehicle weight, can reduce the energy consumption of vehicle '.
Claims (8)
1. car steering tube column with endergonic structure, comprise the end socket on, lower tubular column (21,22), on, lower tubular column (21,22) inner chamber is provided with, following mandrel (11,12), on, following mandrel (11,12) there is one to be tubulose and entangle another mandrel in, two mandrels (11,12) socket Duan Weijian cooperates, injection moulding pin (16) is radially worn the socket section position that is connected in both, last mandrel (11) and last tubing string (21), following mandrel (12) constitutes normal-running fit by bearing respectively with lower tubular column (22), last tubing string (21) connects upper bracket (23), lower tubular column (22) connects lower bracket (24), it is characterized in that: described tubulose mandrel one end sealing, the other end entangle another mandrel and within it the chamber surround roughly fully enclosed cavity, described closed cavity has pressure relief mechanism.
2. a kind of car steering tube column according to claim 1 with endergonic structure, it is characterized in that: described mandrel (12) down is the pipe shape of lower end closed, the hypomere of last mandrel (11) inserts in the following mandrel (12), the bottom of last mandrel (11) and following mandrel (12) inwall air-tight fit, described pressure relief mechanism are the aperture (13) that is provided with on the hypomere tube wall of mandrel (12) down.
3. a kind of car steering tube column according to claim 2 with endergonic structure, it is characterized in that: described mandrel (12) epimere down constitutes splined hole with last mandrel (11) hypomere and cooperates with the spline shaft type, and the length of spline fitted section arrives the length of mandrel (12) lower end down greater than last mandrel (11) lower end.
4. a kind of car steering tube column with endergonic structure according to claim 3 is characterized in that: described mandrel (12) lower end down evenly is furnished with several apertures (13) to the axial wall upper edge axial length direction between last mandrel (11) lower end.
5. a kind of car steering tube column according to claim 4 with endergonic structure, it is characterized in that: described mandrel (12) down is the ladder tubulose, its hypomere is thick, epimere is thin, be reducer between the two, the bottom end cover (25) of lower end for being threaded with tube wall, the axle body thickness of last mandrel (11) is identical with the internal diameter of following mandrel (12) epimere, and the lower end of last mandrel (11) is piston head (14).
6. a kind of car steering tube column with endergonic structure according to claim 5 is characterized in that: described sidewall upper edge of going up the piston head (14) of mandrel (11) circumferentially is provided with the circumferential groove (15) that is used to store lubricating oil.
7. a kind of car steering tube column with endergonic structure according to claim 6 is characterized in that: described mandrel (12) and lower bearing (26) interference fit down, lower bearing (26) is kept out with lower tubular column (22) lower end and is cooperated.
8. according to any described a kind of car steering tube column of claim 1 to 7, it is characterized in that: described upper and lower tubing string (21,22) and upper and lower mandrel (11,12) coaxial arrangement with endergonic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010115539A CN101758851A (en) | 2010-03-01 | 2010-03-01 | Automobile steering column with energy-absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010115539A CN101758851A (en) | 2010-03-01 | 2010-03-01 | Automobile steering column with energy-absorbing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101758851A true CN101758851A (en) | 2010-06-30 |
Family
ID=42490273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010115539A Pending CN101758851A (en) | 2010-03-01 | 2010-03-01 | Automobile steering column with energy-absorbing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101758851A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947971A (en) * | 2010-09-10 | 2011-01-19 | 奇瑞汽车股份有限公司 | Collapsible and breakable transmission shaft |
| CN102030029A (en) * | 2010-11-26 | 2011-04-27 | 奇瑞汽车股份有限公司 | Energy-absorbing steering tubular column |
| CN102700600A (en) * | 2012-05-22 | 2012-10-03 | 奇瑞汽车股份有限公司 | Energy absorbing structure of automobile steering tubular column |
| CN103832461A (en) * | 2014-03-24 | 2014-06-04 | 奇瑞汽车股份有限公司 | Energy absorption type automobile steering column assembly |
| CN106364546A (en) * | 2016-10-21 | 2017-02-01 | 刘玲燕 | Connection shaft staggering device for steering wheel of car |
| CN106379403A (en) * | 2016-10-21 | 2017-02-08 | 刘玲燕 | Steering wheel connection shaft staggering device |
| CN106476881A (en) * | 2016-09-20 | 2017-03-08 | 南京航空航天大学 | A kind of negative poisson's ratio structure steering column and its method for designing |
| CN106627727A (en) * | 2016-10-21 | 2017-05-10 | 刘玲燕 | Steering wheel connecting shaft dislocation device for automobile |
| CN109334753A (en) * | 2018-11-30 | 2019-02-15 | 宁波工程学院 | A kind of novel bellows steering column that shrinks |
| CN114312976A (en) * | 2022-01-04 | 2022-04-12 | 杭州琳达汽配有限公司 | Steering column assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6279952B1 (en) * | 2000-01-14 | 2001-08-28 | Trw Inc. | Adaptive collapsible steering column |
| US20030075405A1 (en) * | 2001-10-19 | 2003-04-24 | Delphi Technologies Inc. | Responsive energy absorbing device for steering columns |
| CN201143956Y (en) * | 2007-12-19 | 2008-11-05 | 重庆长安汽车股份有限公司 | Steering mast energy-absorbing structure for automobile |
| 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 |
| CN201169286Y (en) * | 2008-01-04 | 2008-12-24 | 浙江万达汽车方向机有限公司 | Steering column having energy-absorbing function |
-
2010
- 2010-03-01 CN CN201010115539A patent/CN101758851A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6279952B1 (en) * | 2000-01-14 | 2001-08-28 | Trw Inc. | Adaptive collapsible steering column |
| US20030075405A1 (en) * | 2001-10-19 | 2003-04-24 | Delphi Technologies Inc. | Responsive energy absorbing device for steering columns |
| CN201143956Y (en) * | 2007-12-19 | 2008-11-05 | 重庆长安汽车股份有限公司 | Steering mast energy-absorbing structure for automobile |
| CN201169286Y (en) * | 2008-01-04 | 2008-12-24 | 浙江万达汽车方向机有限公司 | Steering column having energy-absorbing function |
| 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 |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947971A (en) * | 2010-09-10 | 2011-01-19 | 奇瑞汽车股份有限公司 | Collapsible and breakable transmission shaft |
| CN101947971B (en) * | 2010-09-10 | 2012-01-04 | 奇瑞汽车股份有限公司 | Collapsible and breakable transmission shaft |
| CN102030029A (en) * | 2010-11-26 | 2011-04-27 | 奇瑞汽车股份有限公司 | Energy-absorbing steering tubular column |
| CN102030029B (en) * | 2010-11-26 | 2013-06-12 | 奇瑞汽车股份有限公司 | Energy-absorbing steering tubular column |
| CN102700600A (en) * | 2012-05-22 | 2012-10-03 | 奇瑞汽车股份有限公司 | Energy absorbing structure of automobile steering tubular column |
| CN102700600B (en) * | 2012-05-22 | 2017-06-16 | 奇瑞汽车股份有限公司 | A kind of car steering tube column endergonic structure |
| CN103832461A (en) * | 2014-03-24 | 2014-06-04 | 奇瑞汽车股份有限公司 | Energy absorption type automobile steering column assembly |
| CN106476881A (en) * | 2016-09-20 | 2017-03-08 | 南京航空航天大学 | A kind of negative poisson's ratio structure steering column and its method for designing |
| CN106476881B (en) * | 2016-09-20 | 2019-04-09 | 南京航空航天大学 | A kind of design method of negative poisson's ratio structure steering column |
| CN106379403A (en) * | 2016-10-21 | 2017-02-08 | 刘玲燕 | Steering wheel connection shaft staggering device |
| CN106627727A (en) * | 2016-10-21 | 2017-05-10 | 刘玲燕 | Steering wheel connecting shaft dislocation device for automobile |
| CN106364546A (en) * | 2016-10-21 | 2017-02-01 | 刘玲燕 | Connection shaft staggering device for steering wheel of car |
| CN106627727B (en) * | 2016-10-21 | 2018-10-16 | 上海伟奕传动轴配件有限公司 | A kind of handwheel for vehicle connecting shaft dislocation device |
| CN106379403B (en) * | 2016-10-21 | 2019-01-11 | 浙江瑞邦智能装备股份有限公司 | A kind of steering wheel connecting shaft dislocation device |
| CN106364546B (en) * | 2016-10-21 | 2019-01-29 | 广州广汽比亚迪新能源客车有限公司 | A kind of connecting shaft dislocation device for vehicle steering wheel |
| CN109334753A (en) * | 2018-11-30 | 2019-02-15 | 宁波工程学院 | A kind of novel bellows steering column that shrinks |
| CN114312976A (en) * | 2022-01-04 | 2022-04-12 | 杭州琳达汽配有限公司 | Steering column assembly |
| CN114312976B (en) * | 2022-01-04 | 2022-11-29 | 杭州琳达汽配有限公司 | Steering column assembly |
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Application publication date: 20100630 |
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| RJ01 | Rejection of invention patent application after publication |