CN203681642U - Automobile steering column - Google Patents
Automobile steering column Download PDFInfo
- Publication number
- CN203681642U CN203681642U CN201420037974.2U CN201420037974U CN203681642U CN 203681642 U CN203681642 U CN 203681642U CN 201420037974 U CN201420037974 U CN 201420037974U CN 203681642 U CN203681642 U CN 203681642U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- shell fragment
- tongue piece
- pillar
- tube column
- 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 - Lifetime
Links
- 239000012634 fragment Substances 0.000 claims description 37
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract 7
- 238000001514 detection method Methods 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 241001633942 Dais Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
The utility model relates to automobile steering systems, in particular to an automobile steering column. The automobile steering column comprises a first mandrel, a second mandrel and an elastic pressing sheet located between the first mandrel and the second mandrel. A cavity for containing the second mandrel is formed in the position of the mandrel end of the first mandrel, one end of the second mandrel is arranged in the cavity, the other end of the second mandrel is arranged on the outer portion of the first mandrel in a suspending mode, the mandrel neck of the first mandrel is provided with a hole or a notch, the elastic pressing sheet is provided with an elastic protrusion, and the elastic protrusion is arranged in the hole or the notch. When the first mandrel and the second mandrel slide oppositely, the elastic pressing sheet is extruded to shrink towards the side of the second mandrel; when a steering wheel is impacted, the elastic protrusion of the elastic pressing sheet slides out from the hole or the notch of the first mandrel, a large amount of impact force is absorbed in the process, and the injury severity of a driver is relieved. Due to the fact that the elastic pressing sheet is machined independently, detection can be conducted on the elastic pressing sheet, and therefore the good energy absorption effect can be guaranteed. After detection, the elastic pressing sheet is not damaged and can still be used continuously, and therefore the production cost is saved.
Description
Technical field
The utility model patent relates to automobile steering system, is specifically related to car steering tube column.
Background technology
Along with the raising of people's living standard, automobile more and more becomes the indispensable vehicle of daily life.Thereupon, traffic accident also occurs again and again, and wherein, in vehicle generation head-on crash accident, bearing circle often causes direct injury to human body.Therefore,, in order to reduce the injury to chaufeur, the crumple energy-absorbing of wheel steering tubing string requires just to seem particularly important.Traditional steering column collapsing structure has three kinds of forms.The one, on steering column mounting bracket, arrange and pull piece, this pulls piece and adopts injection moulding nylon and support to fix, and when collision, guarantees crumple by the nylon of shearing injection moulding; The 2nd, turn to lower outside pillar to connect to guarantee crumple power by plastic bushing; The 3rd, upper and lower mandrel adopts injection moulding form to connect to guarantee crumple power.Due to injection moulding mode, affected by temperature and injection pressure factor very large, and the scope of therefore crumple power is larger, and parts conformability is poor, and the injury of chaufeur is also not easy to control, and individual other can cause serious consequence.Once and moulding destroy just to scrap, testing cost is high, causes a large amount of wastes.
Summary of the invention
The purpose of this utility model is to provide the car steering tube column that a kind of energy-absorbing effect is good and stable.
For achieving the above object, the utility model has adopted following technical scheme: a kind of car steering tube column, comprise the first mandrel, the second mandrel and be positioned at compression shell fragment between the two, the axial end of the first described mandrel offers the cavity that holds the second mandrel, one end of the second mandrel is placed in cavity, the other end is suspended at the outside of the first mandrel, on the axle journal of the first described mandrel, offer porose or breach, described compression shell fragment is provided with elastic bumps, described elastic bumps is placed in hole or breach, the first mandrel pushes elastic bumps during with the relative slippage of the second mandrel and shrinks towards the second mandrel one side.
Owing to adopting above technical scheme, in the time of crash direction dish, between first, second mandrel, there is relative slippage, the elastic bumps that compresses shell fragment skids off from the hole of the first mandrel or breach, in this process, absorb a large amount of impulsive forces, alleviated the injured degree of chaufeur.Be the part processing separately owing to compressing shell fragment, can detect, the high conformity of product, can guarantee good energy-absorbing effect.And after detecting, compress not destruction of shell fragment, and still can continue to use, avoid waste, save productive costs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the assembling schematic diagram that compresses shell fragment and the second mandrel;
Fig. 4 is the structural representation that compresses shell fragment.
The specific embodiment
A kind of car steering tube column, comprise the first mandrel 10, the second mandrel 20 and be positioned at compression shell fragment 30 between the two, the axial end of the first described mandrel 10 offers the cavity 11 that holds the second mandrel 20, one end of the second mandrel 20 is placed in cavity 11, the other end is suspended at the outside of the first mandrel 10, on the axle journal of the first described mandrel 10, offer porose or breach 12, on the axle journal of the first described mandrel 10, offer porose or breach 12, that is to say and on the axle journal of the first mandrel 10, hole is set or breach can, described compression shell fragment 30 is provided with elastic bumps, described elastic bumps is placed in hole or breach 12, the first mandrel 10 pushes elastic bumps during with the second mandrel 20 relative slippage and shrinks towards the second mandrel 20 1 sides.In the time of crash direction dish, between first, second mandrel 10,20, there is relative slippage, elastic bumps shrinks towards the second mandrel 20 1 sides, the elastic bumps that compresses shell fragment 30 skids off from the hole of the first mandrel 10 or breach 12, in this process, absorb a large amount of impulsive forces, alleviated the injured degree of chaufeur.Are the parts that process separately owing to compressing shell fragment 30, can detect, the high conformity of product, can guarantee good energy-absorbing effect.And after detecting, compress not destruction of shell fragment, and still can continue to use, avoid waste, save productive costs.
As Fig. 1 and 2, described compression shell fragment 30 is provided with the tongue piece 31 that is suspended at one end perk of the first mandrel 10 outsides towards the second mandrel 20, the angle of tongue piece 31 and compression shell fragment 30 is acute angle, and the perk end of this tongue piece 31 overhangs in hole or breach 12, and described tongue piece 32 forms elastic bumps.That is to say that tongue piece 31 is tiltedly through in hole or breach 12, the projecting end of tongue piece 31 can overhang in the outside of the first mandrel 10, also can be positioned at hole or breach 12.In the utility model, between the perk direction of tongue piece 31 and first, second mandrel 10,20, direction of relative movement occurs consistent, between first, second mandrel 10,20, relative slippage occurs, then tongue piece 31 is extruded and skids off from hole or breach 12.When the first mandrel 10 is positioned at the upper end of the second mandrel 20, the upper end of the second mandrel 20 is placed in cavity 11, the upper end fixed-direction dish of the first mandrel 10; When the first mandrel 10 is positioned at the lower end of the second mandrel 20, the lower end of the second mandrel 20 is placed in cavity 11, the upper end fixed-direction dish of the second mandrel 20.In the time there is head-on crash traffic accident,, there is relative slippage between first, second mandrel 10,20 in chaufeur crash direction dish, the tongue piece 31 that compresses shell fragment 30 skids off from the hole of the first mandrel 10 or breach 12, in this process, absorb a large amount of impulsive forces, alleviated the injured degree of chaufeur.Are the parts that process separately owing to compressing shell fragment 30, can detect, the high conformity of product, can guarantee good energy-absorbing effect.And after detecting, compress not destruction of shell fragment 30, and after ressembling, still can continue to use, avoid waste, save productive costs.
As shown in Fig. 3 or 4, described compression shell fragment 30 comprises the first side wall 32 and the second sidewall 33, described the first side wall 32 and the second sidewall 33 be mutually arranged vertically and adjacent edge affixed, described the first side wall 32 and/or the second sidewall 33 are provided with tongue piece 31, the inside face of described the first side wall 32/ second sidewall 33 is against the second mandrel 20, and its outside face is against the first mandrel 10.Also can say that the first side wall 32 and the second sidewall 33 compositions are L shape and are stuck on the axle journal of the second mandrel 20.On the first side wall 32 and the second sidewall 33, all can be provided with tongue piece 31, also can be that one of them sidewall is provided with tongue piece 31, in the utility model, in order to guarantee that compressing shell fragment 30 has enough intensity, avoid tongue piece 31 resistances excessive, so preferentially select rear a kind of scheme simultaneously.
As Fig. 3 or 4, described the first side wall 32 comprises plural the first arcwall face 321 and is connected to the first plane 322 between adjacent two the first arcwall faces 321, the second sidewall 33 comprises plural the second arcwall face 321 and is connected to the second plane 332 between adjacent two the second arcwall faces 331, between the first plane 322 that position is corresponding and the second plane 332, be connected with transition face 34, the first arcwall face 321 that is positioned at the first side wall 32 middle parts is provided with tongue piece 31.When compression shell fragment 30 is positioned at state of nature, the inside face of first, second plane 322,332 is resisted against on the second mandrel 20, its outside face does not contact with the first mandrel 10, the outside face of the one the second arcwall faces 321,331 is resisted against on the inwall of cavity 11, between its inside face and the second mandrel 20, do not contact, between the first arcwall face 321 that position is corresponding and the second arcwall face 321, do not connect, form vacancy portion, the compression shell fragment 30 of said structure has enough elasticity.Between first, second mandrel 10,20, there is relative slippage, compress shell fragment 30 and produce elastic deformation, resistance is provided, hinder relatively moving of first, second mandrel 10,20, apparatus with shock absorbing.
The lower end of the second described mandrel 20 is placed in cavity 11, and its upper end is suspended at the outside of the first mandrel 10, and bearing circle is fixed on the upper end of the second mandrel 20.
Large stepped in little two ends in the middle of the lower end journal of the second described mandrel 20 is, described compression shell fragment 30 is positioned at minimum axle journal place.The cascaded surface of the axle journal of minimum axle journal and its both sides forms limit dais, compress shell fragment 30 and be stuck in minimum axle journal place by failure-free, avoid compressing between shell fragment 30 and the second mandrel 20 and produce and slide, this situation that tongue piece 31 can not skid off in time from hole or breach 12 occurs, guarantee to compress shell fragment 30 along with the second mandrel 20 moves together, improve the reliability of steering column.
The lower end journal place of the second described mandrel 20 is provided with two the 3rd planes 21 that are symmetrically distributed in its axis both sides and all parallel to the axis, the lower end journal of the shape of described cavity 11 and the second mandrel 20 coincide, the tongue piece 31 of described compression shell fragment 30 is positioned in the 3rd plane 21, and the first mandrel 10 arranges hole or breach 12 with tongue piece 31 corresponding positions.This structure of the second mandrel 20 shell fragment 30 that is not only easily fixed and clamped, and be convenient to processing, the shape of cavity 11 is corresponding with the shape of 20 times end journals of the second mandrel.It is poroid that cavity 11 specifically can be described as the rectangle of distortion, and its cross section is by two straight lines that are parallel to each other and be connected to two arcs between straight line and enclose and form.
The first described mandrel 10 outer cover are provided with the first pillar 40, the second mandrel 20 outer cover are provided with the second pillar 50, between the first described mandrel 10 and the first pillar 40, be provided with clutch shaft bearing 60, between the second mandrel 20 and the second pillar 50, be provided with the second bearing 70, the both sides that the second described bearing 70 is in axial direction gone up are respectively equipped with trip ring 80, and the first described pillar 40 and the second pillar 50 riveted joints coordinate.Arranging of trip ring 80 can be avoided mandrel slippage from pillar.
When installation, first, second pillar 40,50 is connected by mounting bracket with vehicle body.The lower end of the first mandrel 10 is saved fork by welding and is connected with vehicle steering structure, and bearing circle is arranged on the upper end of the second mandrel 20.In the time there is head-on crash traffic accident, chaufeur strikes on bearing circle, and the second pillar 50, with the first pillar 40, relative slippage occurs, and sliding friction power between the two can absorb a part of impact energy.Simultaneously, the second mandrel 20 and the first mandrel 10 are compressing under the thrust of shell fragment 30, produce friction force, the second mandrel 20 drives and compresses relative the first mandrel 10 down slidings of shell fragment 30, and the tongue piece 31 that compresses shell fragment 30 slips over hole or the breach 12 of the first mandrel 10, thereby absorbs a part of impact capacity, avoid chaufeur directly to impact on hardwired bearing circle, arrived the effect of crumple energy-absorbing, alleviated the injured degree of chaufeur.
Manufacturing process, each single-piece can detect its crumple power situation online, rejects off-grade, and detects as non-destructive process.If the destructiveness collision that car load right and wrong are serious, this part assembly can keep in repair rear recycling, and maintenance cost is low.
Claims (8)
1. a car steering tube column, it is characterized in that: comprise the first mandrel (10), the second mandrel (20) and be positioned at compression shell fragment (30) between the two, the axial end of described the first mandrel (10) offers the cavity (11) that holds the second mandrel (20), one end of the second mandrel (20) is placed in cavity (11), the other end is suspended at the outside of the first mandrel (10), on the axle journal of described the first mandrel (10), offer porose or breach (12), described compression shell fragment (30) is provided with elastic bumps, described elastic bumps is placed in hole or breach (12), the first mandrel (10) pushes elastic bumps during with the relative slippage of the second mandrel (20) and shrinks towards the second mandrel (20) one sides.
2. car steering tube column according to claim 1, it is characterized in that: described compression shell fragment (30) is provided with the tongue piece (31) that is suspended at the outside one end perk of the first mandrel (10) towards the second mandrel (20), the perk end of this tongue piece (31) overhangs in hole or breach (12), and described tongue piece (32) forms elastic bumps.
3. car steering tube column according to claim 2, it is characterized in that: described compression shell fragment (30) comprises the first side wall (32) and the second sidewall (33), described the first side wall (32) and the second sidewall (33) be mutually arranged vertically and adjacent edge affixed, described the first side wall (32) and/or the second sidewall (33) are provided with tongue piece (31), the inside face of described the first side wall (32)/second sidewall (33) is against the second mandrel (20), and its outside face is against the first mandrel (10).
4. car steering tube column according to claim 3, it is characterized in that: described the first side wall (32) comprises plural the first arcwall face (321) and is connected to the first plane (322) between adjacent two the first arcwall faces (321), the second sidewall (33) comprises plural the second arcwall face (321) and is connected to the second plane (332) between adjacent two the second arcwall faces (331), between the first plane (322) that position is corresponding and the second plane (332), be connected with transition face (34), the first arcwall face (321) that is positioned at the first side wall (32) middle part is provided with tongue piece (31).
5. according to the car steering tube column described in claim 1-4 any one, it is characterized in that: the lower end of described the second mandrel (20) is placed in cavity (11), its upper end is suspended at the outside of the first mandrel (10), and bearing circle is fixed on the upper end of the second mandrel (20).
6. car steering tube column according to claim 5, is characterized in that: large stepped in little two ends in the middle of the lower end journal of described the second mandrel (20) is, described compression shell fragment (30) is positioned at minimum axle journal place.
7. car steering tube column according to claim 6, it is characterized in that: the lower end journal place of described the second mandrel (20) is provided with two the 3rd planes (21) that are symmetrically distributed in its axis both sides and all parallel to the axis, the shape of described cavity (11) and the lower end journal of the second mandrel (20) coincide, it is upper that the tongue piece (31) of described compression shell fragment (30) is positioned at the 3rd plane (21), and the first mandrel (10) arranges hole or breach (12) with tongue piece (31) corresponding position.
8. car steering tube column according to claim 7, it is characterized in that: described the first mandrel (10) outer cover is provided with the first pillar (40), the second mandrel (20) outer cover is provided with the second pillar (50), between described the first mandrel (10) and the first pillar (40), be provided with clutch shaft bearing (60), between the second mandrel (20) and the second pillar (50), be provided with the second bearing (70), the both sides that described the second bearing (70) is in axial direction gone up are respectively equipped with trip ring (80), described the first pillar (40) and the second pillar (50) riveted joint coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420037974.2U CN203681642U (en) | 2014-01-20 | 2014-01-20 | Automobile steering column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420037974.2U CN203681642U (en) | 2014-01-20 | 2014-01-20 | Automobile steering column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203681642U true CN203681642U (en) | 2014-07-02 |
Family
ID=51003584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420037974.2U Expired - Lifetime CN203681642U (en) | 2014-01-20 | 2014-01-20 | Automobile steering column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203681642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741126A (en) * | 2017-02-22 | 2017-05-31 | 安徽宁国晨光精工股份有限公司 | A kind of car steering tube column |
-
2014
- 2014-01-20 CN CN201420037974.2U patent/CN203681642U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741126A (en) * | 2017-02-22 | 2017-05-31 | 安徽宁国晨光精工股份有限公司 | A kind of car steering tube column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |