CN203255237U - Guiding type collapse energy-absorbing structure of steering column - Google Patents
Guiding type collapse energy-absorbing structure of steering column Download PDFInfo
- Publication number
- CN203255237U CN203255237U CN 201320227127 CN201320227127U CN203255237U CN 203255237 U CN203255237 U CN 203255237U CN 201320227127 CN201320227127 CN 201320227127 CN 201320227127 U CN201320227127 U CN 201320227127U CN 203255237 U CN203255237 U CN 203255237U
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- CN
- China
- Prior art keywords
- steering column
- friction plate
- guiding
- backboard support
- upper bracket
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- 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
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Abstract
Disclosed is a guiding type collapse energy-absorbing structure of a steering column. According to the technical scheme, the guiding type collapse energy-absorbing structure of the steering column comprises the steering column, an upper support, a backboard support and an upper friction plate, wherein the upper support is fixedly connected with the steering column, two square nuts are fixed on the upper support, the backboard support is fixed with a vehicle body, two sliding guiding grooves are formed in the backboard support, two flanging holes are formed between the two sliding guiding grooves, two flanging protrusions are arranged on the upper friction plate and are clamped in the flanging holes, the two square nuts penetrate through the two sliding guiding grooves respectively, and two cross-shaped screws penetrate through the upper friction plate to be screwed into the square nuts. According to the guiding type collapse energy-absorbing structure of the steering column, collapse peak force can be adjusted through the adjustment of the height of the flanging protrusions, energy absorbing force can be adjusted through the change of the tightening torque of the cross-shaped screws, collapse is stable due to the fact that the sliding guiding grooves play a guiding role during collapse, and deformation of the backboard support is avoided during collapse energy absorption due to the fact that Y-shaped reinforcing ribs can make up for the rigidity reduction, caused by the arrangement of the guiding grooves, of the backboard support.
Description
Technical field
The utility model relates to a kind of automobile component, and particularly the crumple energy-absorbing steadily and the adjustable steering column crumple guiding of crumple energy-absorbing power endergonic structure, belongs to automobile technical field.
Background technology
Steering column is the vitals of closure dish and deflector, mainly plays and transmits the torque that chaufeur imposes on bearing circle, drives the effect of deflector work.Steering column is to ensure the vitals of chaufeur life security when serious collision occurs vehicle simultaneously.In case serious collision occurs in automotive front end, move after machinery space, bearing circle also with after move, the space between bearing circle and driver's seat dwindles suddenly, between chaufeur is clipped in and come to harm.For this injury is dropped to minimum level, at present when automobile design, change from the bearing circle extension elongation and start with, after automobile bumps, at first chaufeur head or chest touch bearing circle, and when the bearing circle power of being collided reached certain value, steering column can produce displacement smoothly, thereby the resistance to impact that bearing circle provides is limited in certain peak value, and expansion space.In prior art, column assy crumple endergonic structure is inserted and is sheared disengaged, steel wire distortion energy-absorption type, detachable etc., and they are respectively to rely on to shear injection moulding and insert, pull the steel wire distortion, make rubber coating disengaging etc. realize the crumple energy-absorbing of steering column.Although said structure can make the steering column crumple, but exist following problem: the energy-absorbing stationarity at collision rear steering tubing string is relatively poor, low strength after mounting bracket collision, be subjected to the impact of external factor to cause the difficult people's will to the greatest extent of guidance quality of tubing string displacement, the problems referred to above are all to be unfavorable for navigating mate inherently safe factor.In addition, common column assy crumple endergonic structure, structure is once definite usually, and energy absorption curve is just fixing, and crumple energy-absorbing power can not be adjusted.
The utility model content
The purpose of this utility model is the drawback for prior art, and the steering column crumple guiding that a kind of energy-absorbing is steady, crumple energy-absorbing power is adjustable endergonic structure is provided.
Problem described in the utility model realizes with following technical proposals:
A kind of steering column crumple guiding endergonic structure, special feature be, it comprises steering column, upper bracket, backboard support and upper friction plate, and described upper bracket is captiveed joint with steering column, and two square nuts are fixed at the upper bracket place; Described backboard support and car body are fixed, and the backboard support is provided with two slide-and-guide grooves, are provided with two flanging bores between two slide-and-guide grooves; Described upper friction plate is provided with two flange projections, and the flange projection is stuck in flanging bore; Described two square nuts pass respectively two slide-and-guide grooves, and two plus screw pass upper friction plate and square nut screws.
Above-mentioned steering column crumple guiding endergonic structure, lower end and the upper friction plate of described flange projection are integrated, and the upper end of flange projection protrudes from the upper friction plate surface.
Above-mentioned steering column crumple guiding endergonic structure is provided with lower friction lining between upper bracket and backboard support, lower friction lining is provided with two and holds the square opening that square nut passes.
Above-mentioned steering column crumple guiding endergonic structure, described backboard support is provided with reinforced rib, and reinforced rib is Y-shaped, and two branch end on reinforced rib top are the bottom of corresponding slide-and-guide grooves respectively.
Above-mentioned steering column crumple guiding endergonic structure is arranged with two square nut holes on described upper bracket, square nut passes this Kong Bingyu upper bracket seam.
The utility model improves for the problems of common column assy crumple endergonic structure, compared with prior art, its major advantage is embodied in following aspect: 1, the set upper friction plate of this structure is provided with two flange projections, the flange projection is stuck in the flanging bore that arranges on back bracket, can realize the adjusting of crumple peak force by the height of adjusting the flange projection; 2, plus screw passes upper friction plate and together with square nut is tightened in, realizes the adjusting of energy-absorbing power by changing plus screw screw-down torque size; 3. the backboard support is fixed on vehicle body, and the above is provided with two slide-and-guide grooves, plays directional tagging during crumple, makes crumple steady; 4, in two slide-and-guide groove positive bottoms, the Y shape reinforced rib is arranged, make up the backboard support because of the phenomenon of the rigidity step-down that guide groove is set causes, guarantee that when the crumple energy-absorbing backboard support does not deform.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is exploded view of the present utility model;
Fig. 2 is backboard supporting structure schematic diagram;
Fig. 3 is upper friction plate structural representation (amplification);
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the schematic diagram of the utility model confined state.
In figure, each list of reference numerals is: 1, plus screw, 2, upper friction plate, 2-1, flange projection, 3, the backboard support, 3-1, flanging bore, 3-2, slide-and-guide groove, 4, lower friction lining, 4-1, square opening, 5, upper bracket, 5-1, square nut hole, 6, square nut, 7, steering column.
The specific embodiment
Referring to Fig. 1, the utility model comprises plus screw 1, upper friction plate 2, backboard support 3, lower friction lining 4, upper bracket 5, square nut 6 and steering column 7.Bearing circle is arranged on steering column 7 upper ends.Upper bracket 5 is formed a fixed connection by bolt with steering column, and backboard support 3 is fixed with car body.Be arranged with two square nut hole 5-1 on upper bracket 5, square nut 6 passes this Kong Bingyu upper bracket seam.
Referring to Fig. 1-4, the backboard support is provided with two slide-and-guide groove 3-2, and two square nuts pass this two slide-and-guide grooves, and when steering column generation crumple, square nut moves along the slide-and-guide groove, and the effect of steady guiding is played in crumple to steering column.Described upper friction plate 2 is provided with two flange projection 2-1,2-1 is through being stamped to form for the flange projection, the lower end of flange projection and upper friction plate 2 are integrated, and the upper end of flange projection protrudes from the upper friction plate surface, and the protrusion height of adjusting the flange projection can be regulated the peak force of crumple energy-absorbing.Be provided with the flanging bore 3-1 of two rectangles between two slide-and-guide grooves, the flange projection is stuck in flanging bore.Two plus screw 1 pass upper friction plate and square nut 6 screws, and by changing the screw-down torque between plus screw and square nut, can regulate the size of energy-absorbing power.
Still referring to Fig. 1, be provided with lower friction lining 4 between upper bracket 5 and backboard support 3, lower friction lining is provided with two and holds the square opening 5-1 that square nut 6 passes.The square nut 6 that is fixed on the upper bracket place passes square opening 4-1, slide-and-guide groove 3-2 and plus screw 1 screws.
Referring to Fig. 1, Fig. 2, after slide-and-guide groove 3-2 is set on backboard support 3, can slacken to some extent its rigidity, for making up the phenomenon of rigidity step-down, be provided with reinforced rib 3-3 on the backboard support, reinforced rib is Y-shaped, and two branch end on reinforced rib top are the bottom of corresponding slide-and-guide groove 3-2 respectively, and this structure can guarantee that when the crumple energy-absorbing backboard support does not deform.
The mounting structure of the utility model under the use state as shown in Figure 5.
Principle of work of the present utility model is as follows: when the car load collision occurs, chaufeur head or chest can be pressed on bearing circle, because bearing circle, steering column, upper bracket, square nut are rigid attachment, the squeese pressure that bearing circle is subject to passes to upper bracket by steering column; Upper bracket is subjected to displacement under external force, overcomes the friction force that is produced by upper friction plate, lower friction lining and clamping backboard support during the upper bracket displacement, plays the crumple energy-absorbing function, plays the displacement directional tagging by slide-and-guide groove and square nut during the upper bracket displacement.
Claims (5)
1. steering column crumple guiding endergonic structure, it is characterized in that, it comprises steering column (7), upper bracket (5), backboard support (3) and upper friction plate (2), and described upper bracket is captiveed joint with steering column, and two square nuts (6) are fixed at the upper bracket place; Described backboard support (3) is fixed with car body, and the backboard support is provided with two slide-and-guide grooves (3-2), is provided with two flanging bores (3-1) between two slide-and-guide grooves; Described upper friction plate (2) is provided with two flange projections (2-1), and the flange projection is stuck in flanging bore; Described two square nuts pass respectively two slide-and-guide grooves, and two plus screw (1) pass upper friction plate and square nut (6) screws.
2. steering column crumple according to claim 1 guiding endergonic structure, is characterized in that, lower end and the upper friction plate (2) of described flange projection (2-1) are integrated, and the upper end of flange projection protrudes from the upper friction plate surface.
3. steering column crumple guiding endergonic structure according to claim 2, is characterized in that, is provided with lower friction lining (4) between upper bracket (5) and backboard support (3), and lower friction lining is provided with two and holds the square opening (5-1) that square nut (6) passes.
4. steering column crumple according to claim 3 guiding endergonic structure, it is characterized in that, described backboard support (3) is provided with reinforced rib (3-3), and reinforced rib is Y-shaped, and two branch end on reinforced rib top are the bottom of corresponding slide-and-guide grooves (3-2) respectively.
5. steering column crumple guiding endergonic structure according to claim 4, is characterized in that, be arranged with two square nut holes (5-1) on described upper bracket (5), square nut passes this Kong Bingyu upper bracket seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320227127 CN203255237U (en) | 2013-04-28 | 2013-04-28 | Guiding type collapse energy-absorbing structure of steering column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320227127 CN203255237U (en) | 2013-04-28 | 2013-04-28 | Guiding type collapse energy-absorbing structure of steering column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203255237U true CN203255237U (en) | 2013-10-30 |
Family
ID=49467828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320227127 Expired - Lifetime CN203255237U (en) | 2013-04-28 | 2013-04-28 | Guiding type collapse energy-absorbing structure of steering column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203255237U (en) |
-
2013
- 2013-04-28 CN CN 201320227127 patent/CN203255237U/en not_active Expired - Lifetime
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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: 20131030 |