CN209290502U - Anti-collision beam before a kind of kart roll-in - Google Patents

Abstract

Anti-collision beam before a kind of kart roll-in, whole arc-shaped, the section shape of the crossbeam includes the cavity of three closures according to upper, middle and lower arrangement.The cavity that the section shape of preceding anti-collision beam described in the utility model is closed by three is constituted, the high main supporting section of Y-shaped of stability is constituted between middle chamber and two sides cavity, the double-deck wall thickness structure of main supporting section can play stable supporting role, hence it is evident that improve the anti-bending strength in crossbeam collision process；The design of the structure of the first, second strengthening segment and front strengthening segment facilitates crossbeam and further increases anti-bending strength in crossbeam section shape.The crossbeam uses roll-forming, high compared to Sheet Metal Forming Technology stock utilization, high production efficiency；The utility model is compared with traditional Type B anti-collision beam, in the comparable situation of anti-bending strength, can reduce the weight 10%-15% of main body of cross-beam, reaches light-weighted purpose.The structure design of the utility model is reasonable, easy to implement, technical maturity, has good market prospects.

Description

Anti-collision beam before a kind of kart roll-in

Technical field

The utility model relates to anti-collision beams before a kind of automobile safety components, especially kart roll-in.

Background technique

Currently, automobile has stepped into family into important walking-replacing tool in for people's lives.With car ownership It is continuously increased and also brings increasingly serious environmental problem therewith.In order to improve the energy saving and the feature of environmental protection, reduction fuel oil of automobile Consumption and reduction discharge, the design of automotive light weight technology are increasingly taken seriously.It certainly cannot while paying close attention to automotive light weight technology The security performance for ignoring automobile, protected to greatest extent when car crass occurs occupant safety be the effort of each main engine plants side To.When automobile positive collides, impact energy can effectively be absorbed by designing reasonable front anti-collision beam structure, reduce crew module and vehicle body The damage of structure reduces the damage of vehicle while reducing occupant's injury degree, reduces maintenance cost.Collision prevention girders are automobile weights The safety component wanted, anti-bending strength of the front anti-collision beam structure in head-on crash are the important measurement indexs of vehicle safety performance. Crossbeam is the main bending resistance part of anticollision girder construction, and section shape design and integrally bending radian directly affect anti-bending strength.By vapour The restriction of bassinet structure space of components position finds the collision for being both able to satisfy front anti-collision beam when crossbeam bend radian can not change Mechanical property again can the section of beam of appropriate loss of weight then to become be direction that automobile engineer continues to optimize design.

Utility model content

The utility model provides anti-collision beam before a kind of kart roll-in, and the anti-collision beam is set through the optimization of section shape Meter maintains the mechanical property not less than traditional crossbeam while effectively mitigating the weight of main body of cross-beam.

Problem described in the utility model is realized with following technical proposals:

Anti-collision beam before a kind of kart roll-in is made, whole arc-shaped, the cross through steel band roll-in, local soldering The section shape of beam includes the cavity of three closures according to upper, middle and lower arrangement；Wherein, the width dimensions of middle cavity are less than upper cavity With the width dimensions of lower chamber, main supporting section is equipped between middle cavity and crossbeam rear wall.

Anti-collision beam before above-mentioned kart roll-in, the upper wall of middle cavity and middle cavity lower wall respectively symmetrically bend folded up and down It sets soldering and is integrated the main supporting section of composition, main supporting section and middle cavity upper wall bending part, middle cavity lower wall bending part and structure At Y-shaped structure.

Anti-collision beam before above-mentioned kart roll-in, upper cavity antetheca lower end bend soldering, structure to middle cavity upper wall front At the first strengthening segment；Lower chamber antetheca upper end bends soldering to middle cavity lower wall front, constitutes the second strengthening segment.

Anti-collision beam before above-mentioned kart roll-in, crossbeam section shape is by conllinear upper cavity antetheca, middle cavity antetheca, cavity of resorption Body antetheca constitutes section shape front line, and section shape rear portion line, section shape front line are made of conllinear upper cavity rear wall, lower chamber rear wall It is parallel with section shape rear portion line.

Anti-collision beam before above-mentioned kart roll-in, the antetheca upper stack of upper cavity antetheca lower part and middle cavity, cavity of resorption Body antetheca top and middle cavity antetheca lower stack, upper cavity antetheca lower end and the upper end butt welding of lower chamber antetheca, before middle cavity Wall and upper cavity antetheca lower part, lower chamber antetheca top constitute front strengthening segment.

Anti-collision beam mentions before above-mentioned kart roll-in, before the crossbeam section shape is by conllinear upper cavity antetheca, lower chamber Wall constitutes section shape front line, is made of section shape rear portion line conllinear upper cavity rear wall, lower chamber rear wall, section shape front line with cut Shape rear portion line is parallel.

All bending parts of anti-collision beam before above-mentioned kart roll-in, the crossbeam section shape are equipped with knuckle, The radius of knuckle is not less than three times of crossbeam thickness of strips, and crossbeam thickness of strips is not less than 1 millimeter.

The cavity that the section shape of preceding anti-collision beam described in the utility model is closed by three is constituted, middle chamber and two sides cavity Between constitute the high main supporting section of Y-shaped of stability, the double-deck wall thickness structure of main supporting section can play stable supporting role, hence it is evident that Improve the anti-bending strength in crossbeam collision process；The structure of the first, second strengthening segment and front strengthening segment designs in crossbeam section shape Facilitate crossbeam and further increases anti-bending strength.The crossbeam uses roll-forming, high compared to Sheet Metal Forming Technology stock utilization, raw It produces high-efficient；The utility model in the comparable situation of anti-bending strength, can reduce crossbeam compared with traditional Type B anti-collision beam The weight 10%-15% of main body, reaches light-weighted purpose.The structure design of the utility model is reasonable, easy to implement, technique at It is ripe, there are good market prospects.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawing.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of the utility model first embodiment section shape；

Fig. 3 is the structural schematic diagram of the utility model the second embodiment section shape；

Fig. 4 such as is at the traditional crossbeam and the utility model crossbeam anti-bending strength comparison diagram of the materials such as the boundaries such as weight.

Each list of reference numerals in figure are as follows: 1, upper cavity, 1-1, upper cavity antetheca, 1-2, upper cavity rear wall, the 2, first strengthening segment, 3, middle cavity, 3-1, middle cavity antetheca, 3-2, middle cavity upper wall, 3-3, middle cavity lower wall, the 4, second strengthening segment, 5, lower chamber, 5-1, lower chamber antetheca, 5-2, lower chamber rear wall, 6, main supporting section, 7, front strengthening segment.

Specific embodiment

Referring to Fig. 1, crossbeam described in the utility model is made through steel band roll-in, local soldering, and whole arc-shaped, crossbeam is by three A closed lumen is constituted.

The section shape of crossbeam is the important improvements of the utility model.Referring to Fig. 2, Fig. 3, the section shape of crossbeam include three according to According to the cavity of the closure of upper, middle and lower arrangement.(upper and lower, forward and backward to be the use state according to crossbeam and determine).The width of middle cavity 3 The width dimensions that size is less than upper cavity 1 and lower chamber 5 are spent, main supporting section 6 is equipped between middle cavity and crossbeam rear wall.Main support Section is constituted in the following manner: the upper wall 3-2 of middle cavity and middle cavity lower wall 3-3 is stacked up and down after respectively symmetrically bending in opposite directions, Soldering is integrated at the rear wall of crossbeam.Supporting section has the double-deck wall thickness, main supporting section and middle cavity upper wall bending part, lumen Body lower wall bending part constitutes Y-shaped structure.The position of Y-shaped structure and shape can play stable supporting role, resist When impact force from head-on crash, the anti-bending strength in crossbeam collision process can be significantly improved, touching for crossbeam is effective against Hit bending deformation.

Referring to Fig. 2, this is the first embodiment of the utility model, under the upper cavity antetheca 1-1 of program crossbeam section shape It holds to middle cavity upper wall front and bends soldering, constitute the first strengthening segment 2；The lower chamber upper end antetheca 5-1 is to middle cavity lower wall front Soldering is bent, the second strengthening segment 4 is constituted.In the embodiment, the first strengthening segment, the second strengthening segment are parallel with main supporting section to be set It sets, the first strengthening segment, the dual wall thickness structure of the second strengthening segment can further improve the anti-bending strength of crossbeam.In the first embodiment party In case, crossbeam section shape constitutes section shape front line by conllinear upper cavity antetheca 1-1, middle cavity antetheca 3-1, lower chamber antetheca 5-1； Section shape rear portion line is made of conllinear upper cavity rear wall 1-2, lower chamber rear wall 5-2, section shape front line and section shape rear portion line are flat Row.

Referring to Fig. 2, this is second embodiment of the utility model, the upper cavity antetheca lower part of program crossbeam section shape with It is stacked before and after the antetheca top of middle cavity, it is stacked before and after lower chamber antetheca top and middle cavity antetheca lower part, under upper cavity antetheca End and the upper end butt welding of lower chamber antetheca, are constituted front and are added by middle cavity antetheca and upper cavity antetheca lower part, lower chamber antetheca top Strong section 7.The dual wall thickness structure of front strengthening segment, can reduce impact of the external force to main supporting section, equally plays raising crossbeam and touches The effect of anti-bending strength during hitting.In second embodiment, crossbeam section shape is by conllinear upper cavity antetheca, lower chamber antetheca Section shape front line is constituted, section shape rear portion line, section shape front line and section shape are constituted by conllinear upper cavity rear wall, lower chamber rear wall Rear portion line is parallel.

Referring still to Fig. 2, Fig. 3, all bending parts of crossbeam section shape are equipped with knuckle, and the wall thickness of knuckle is not small In three times of crossbeam thickness of strips, crossbeam thickness of strips is not less than 1 millimeter.The height dimension H of crossbeam section shape is 60-135 millimeters； The width dimensions L of crossbeam section shape is 25-60 millimeters.The tensile strength of crossbeam strip material is greater than 1000Mpa.

Referring to Fig. 4, comparative test show etc. weight, etc. boundary dimensions, etc. materials under conditions of, the utility model is horizontal The anti-bending strength of beam is higher than traditional crossbeam about 12%.In other words, when the two flexing resistance is suitable, the utility model crossbeam Lightweight it is with the obvious advantage.

Claims (7)

1. anti-collision beam before a kind of kart roll-in is made through steel band roll-in, local soldering, whole arc-shaped, feature exists In: the section shape of the crossbeam includes the cavity of three closures according to upper, middle and lower arrangement；Wherein, the broad-ruler of middle cavity (3) The very little width dimensions less than upper cavity (1) and lower chamber (5) are equipped with main supporting section (6) between middle cavity and crossbeam rear wall.

2. anti-collision beam before kart roll-in according to claim 1, it is characterised in that: the upper wall (3-2) of middle cavity And middle cavity lower wall (3-3) respectively symmetrically bends stacked soldering up and down and is integrated the main supporting section of composition, main supporting section and middle cavity Upper wall bending part, middle cavity lower wall bending part and composition Y-shaped structure.

3. anti-collision beam before kart roll-in according to claim 2, it is characterised in that: under upper cavity antetheca (1-1) It holds to middle cavity upper wall front and bends soldering, constitute the first strengthening segment (2)；The lower chamber antetheca upper end (5-1) is to middle cavity lower wall Front bends soldering, constitutes the second strengthening segment (4).

4. anti-collision beam before kart roll-in according to claim 3, it is characterised in that: crossbeam section shape is by conllinear upper Cavity antetheca, middle cavity antetheca, lower chamber antetheca constitute section shape front line, by conllinear upper cavity rear wall, lower chamber rear wall Section shape rear portion line is constituted, section shape front line is parallel with section shape rear portion line.

5. anti-collision beam before kart roll-in according to claim 2, it is characterised in that: upper cavity antetheca lower part is in The antetheca upper stack of cavity, lower chamber antetheca top and middle cavity antetheca lower stack, upper cavity antetheca lower end and lower chamber The butt welding of antetheca upper end constitutes front strengthening segment (7) by middle cavity antetheca and upper cavity antetheca lower part, lower chamber antetheca top.

6. anti-collision beam before kart roll-in according to claim 5, it is characterised in that: the crossbeam section shape is by conllinear Upper cavity antetheca, lower chamber antetheca constitute section shape front line, section shape is constituted by conllinear upper cavity rear wall, lower chamber rear wall Rear portion line, section shape front line are parallel with section shape rear portion line.

7. anti-collision beam before the kart roll-in according to claim 4 or 6, it is characterised in that: the crossbeam section shape All bending parts are equipped with knuckle, and the radius of knuckle is not less than three times of crossbeam thickness of strips, and beam steel band is thick Degree is not less than 1 millimeter.