CN205278224U - Big stroke energy -absorbing device - Google Patents
Big stroke energy -absorbing device Download PDFInfo
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- CN205278224U CN205278224U CN201521125183.6U CN201521125183U CN205278224U CN 205278224 U CN205278224 U CN 205278224U CN 201521125183 U CN201521125183 U CN 201521125183U CN 205278224 U CN205278224 U CN 205278224U
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Abstract
The utility model discloses a big stroke energy -absorbing device, including two tip big envelopes, and a plurality of axial arrangement s of setting between two tip big envelopes energy -absorbing piece, connect through the uide bushing between the adjacent energy -absorbing piece, the left and right sides of uide bushing all is provided with and is used for holding the uide bushing recess of energy -absorbing piece. The utility model discloses the energy -absorbing device for having big stroke is dressed up to the multistage less axial dimensions's of lieutenant general energy -absorbing block group, not only improves the energy -absorbing ability, has still avoided the easy unstability problem of big stroke energy -absorbing piece compression. Simultaneously, because energy -absorbing piece interstage sets up the uide bushing, can produce the restraint so that the energy -absorbing piece warp controllablely to energy -absorbing piece circumference to carry out lightweight A -optimal design according to energy -absorbing piece size and energy -absorbing demand to the uide bushing.
Description
Technical field
This utility model relates to crash energy absorption equipment technical field, in particular a kind of big stroke energy absorption device.
Background technology
Metal beehive due to its lightweight, high-strength, higher than energy-absorbing, deform the advantages such as controlled, be widely used in the engineering fields such as automobile, boats and ships, Aero-Space as desirable buffering energy-absorbing material.
Metal beehive energy absorbent block has the axial carrying capacity of excellence. When bearing axial impact loading, there is flexing elastic-plastic deformation vertically in metal beehive, impact energy is converted into the elastic-plastic deformation energy of metal material, thus reaching the purpose of buffering energy-absorbing.
The energy absorption ability of metal beehive energy absorbent block and the intensity of metal beehive energy absorbent block, area of section and to be effectively compressed stroke relevant. When bearing strength is determined, its energy absorption ability and bearing cross-section area, being effectively compressed stroke and be directly proportional, bearing cross-section area is more big, it is more big to be effectively compressed stroke, and its energy absorption ability is more big. When bearing cross-section area is by limited time, for meeting energy-absorbing requirement, honeycomb can only be increased and be effectively compressed stroke, and then make honeycomb axial dimension increase. When metal beehive axial length is excessive with the ratio of bearing cross-section bond length, causing producing when metal beehive is compressed unstable phenomenon, energy absorption ability sharply declines and even lost efficacy.
The compound mode of existing big stroke metal beehive energy absorption device mainly has following two:
The first is along honeycomb axially-aligned by multi-level metal honeycomb energy absorbent block, and is kept apart by adjacent two-stage honeycomb with dividing plate, processes through hole at honeycomb energy absorbent block axis place and dividing plate axis place, installs the guide rod of tubular construction wherein. This kind of structural deterioration integrity of single-stage honeycomb energy absorbent block (need to process through hole) at honeycomb energy absorbent block axis place, will certainly reduce the energy absorption ability of honeycomb energy absorbent block. Honeycomb energy absorbent block circumference cannot be produced constraint by this external partition, when impact velocity is excessive, still cannot solve honeycomb Compressional buckling problem.
The second is along honeycomb axially-aligned by multi-level metal honeycomb energy absorbent block, and is kept apart by adjacent two-stage honeycomb with active clapboard. Honeycomb energy absorbent block circumference axially to its cladding certain length, can be produced constraint along honeycomb energy absorbent block by this active clapboard. At this honeycomb energy-absorbing device side equipped with guide rail, when honeycomb is compressed, active clapboard can along slide. This kind of structure has bigger energy absorption ability, and honeycomb energy absorbent block compression is controlled, but due to the existence of guide rail, whole honeycomb energy-absorbing device weight is relatively big, is unfavorable for light-weight design.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is in that to provide a kind of big stroke energy absorption device, solve multi-level metal honeycomb energy absorbent block in prior art along honeycomb axially-aligned, and when adjacent two-stage honeycomb being kept apart with dividing plate, it is process through hole at honeycomb energy absorbent block axis place and dividing plate axis place to destroy the integrity of single-stage honeycomb energy absorbent block, the energy absorption ability causing honeycomb energy absorbent block reduces and honeycomb compresses easy unstability when impact velocity is excessive, cause that whole honeycomb energy-absorbing device weight is bigger at honeycomb energy-absorbing device side equipped with guide rail, it is unfavorable for the defect of light-weight design.
The technical solution of the utility model is as follows:
A kind of big stroke energy absorption device, wherein, including two end big envelopes, and the energy absorbent block of the multiple axially-aligned being arranged between two end big envelopes; Connected by fairlead between adjacent energy absorbent block; The left and right sides of described fairlead is provided with the fairlead groove for holding described energy absorbent block.
Described big stroke energy absorption device, wherein, described end big envelope includes big envelope top, and is positioned at the big envelope outer rim of the same side, described big envelope top.
Described big stroke energy absorption device, wherein, described big envelope top and described big envelope outer rim are one-body molded, and described big envelope outer rim forms the big envelope groove for holding described energy absorbent block with described big envelope top.
Described big stroke energy absorption device, wherein, described big envelope outer rim is provided with multiple big envelope protruding.
Described big stroke energy absorption device, wherein, described big envelope outer rim is provided with 6 big envelope projections.
Described big stroke energy absorption device, wherein, described fairlead includes fairlead top, and with fairlead outer rim that described fairlead top is the plane of symmetry.
Described big stroke energy absorption device, wherein, described fairlead top and described fairlead outer rim are one-body molded, described fairlead top with its on the left of fairlead outer rim form left side fairlead groove, and described fairlead top with its on the right side of fairlead outer rim form right side fairlead groove.
Described big stroke energy absorption device, wherein, described fairlead outer rim is provided with multiple fairlead protruding.
Described big stroke energy absorption device, wherein, described fairlead outer rim is provided with 6 fairlead projections.
Big stroke energy absorption device provided by the utility model, including two end big envelopes, and the energy absorbent block of the multiple axially-aligned being arranged between two end big envelopes; Connected by fairlead between adjacent energy absorbent block; The left and right sides of described fairlead is provided with the fairlead groove for holding described energy absorbent block. The energy absorbent block of multistage relatively small axial size is assembled into the energy absorption device with big stroke by this utility model, not only improves energy absorption ability, it is thus also avoided that big stroke energy absorbent block compresses easy destabilization problems. Simultaneously as energy absorbent block inter-stage arranges fairlead, energy absorbent block circumference can be produced constraint so that energy absorbent block deformation is controlled, and according to energy absorbent block size and energy-absorbing demand, fairlead be carried out lightweight optimal design.
Accompanying drawing explanation
Fig. 1 is the structural representation of big stroke energy absorption device described in the utility model.
Fig. 2 is the exploded perspective view of big stroke energy absorption device described in the utility model.
Fig. 3 is the sectional view of big stroke energy absorption device described in the utility model.
Fig. 4 is the structural representation of big stroke energy absorption device medial end portions big envelope described in the utility model.
Fig. 5 a is the structural representation of fairlead in big stroke energy absorption device described in the utility model.
Fig. 5 b is the sectional view of fairlead in big stroke energy absorption device described in the utility model.
Fig. 6 is the big stroke energy absorption device described in the utility model schematic diagram when energy-absorbing is compressed.
Fig. 7 is the structural representation of big stroke energy absorption device N level described in the utility model series connection.
Detailed description of the invention
This utility model provides a kind of big stroke energy absorption device, for making the purpose of this utility model, technical scheme and effect clearly, clearly, referring to accompanying drawing examples, this utility model is further described. Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the structural representation of big stroke energy absorption device described in the utility model, and Fig. 2 is the exploded perspective view of big stroke energy absorption device described in the utility model, and Fig. 3 is the sectional view of big stroke energy absorption device described in the utility model. As shown in Figure 1-Figure 3, the big stroke energy absorption device that this utility model provides includes two end big envelopes 100 and the energy absorbent block 200 of the multiple axially-aligned being arranged between two end big envelopes; Connected by fairlead 300 between adjacent energy absorbent block 200; The left and right sides of described fairlead 300 is provided with the fairlead groove for holding described energy absorbent block 200. When its energy-absorbing is compressed, as shown in Figure 6.
When being embodied as, described energy absorbent block 200 is metal beehive energy absorbent block. Metal beehive energy absorbent block is to be formed by the regular hexagon that size is regular is stacking, and molding mode has forming process and pulling method two kinds. By experimental test, this metal beehive energy absorbent block has high intensity, high concordance, is the core component of apparatus with shock absorbing. The mounting means of honeycomb is changed by changing the big I of �� (angle of the normal of the length of side that �� is honeycomb block diagonal cross section and honeycomb hole lattice wall thickness is 2t). Metal beehive energy absorbent block mounting means in fairlead 300 is different, and its compression property is also different.
The self structure of described energy absorbent block 200 is not limited to orthohexagonal hole trellis shape, and hole trellis shape and the hole lattice size of energy absorbent block at different levels can differ; It is not limited to specific metal material; It is not limited to cross sectional shape and area of section; It is not limited to honeycomb texture, it is also possible to be foam metal; Being not limited to the axial length of metal beehive energy absorbent block, namely energy absorbent block axial lengths at different levels need not be entirely equal; Its with end big envelope and the mounting means of fairlead also do not limit.
When assembling, one end of first order energy absorbent block is mounted to the end big envelope 100 in left side, the other end of first order energy absorbent block is mounted to the fairlead groove on the left of first order fairlead again, one end of second level energy absorbent block is arranged on fairlead groove on the right side of first order fairlead afterwards again, so repeat N level energy absorbent block is installed, finally one end of N level energy absorbent block is mounted in end big envelope 100. When N level energy absorbent block being assembled, it is as shown in Figure 7.
So, the energy absorbent block of multistage relatively small axial size is assembled into the big stroke energy absorption device with big stroke, not only improves energy absorption ability, it is thus also avoided that big stroke energy absorbent block compresses easy destabilization problems.
Please refer to Fig. 1 and Fig. 4, wherein Fig. 4 is the structural representation of big stroke energy absorption device medial end portions big envelope described in the utility model. As shown in Figure 1 and Figure 4, described end big envelope 100 includes big envelope top 110, and is positioned at the big envelope outer rim 120 of the same side, described big envelope top 110. Described big envelope top 110 and described big envelope outer rim 120 are one-body molded, and described big envelope outer rim 120 forms the big envelope groove for holding described energy absorbent block 200 with described big envelope top 110.
Further, described big envelope outer rim 120 is provided with multiple big envelope projection 121. Best, described big envelope outer rim 120 is provided with 6 big envelope projections 121.
In embodiment of the present utility model, end big envelope 100 is thin-wall case structure, four seamed edge roundings, it is simple to be installed in die cavity. Surrounding in the big envelope outer rim 120 of end big envelope 100 has 6 big envelope projections 121, only had these 6 big envelopes protruding 121 to contact with the wall of die cavity when described big stroke energy absorption device compresses, substantially reduce the contact area of end big envelope 100 and die cavity, and then reduce friction when compressing and between die cavity. End big envelope 100 is only installed at rear and front end, and therefore big stroke energy absorption device only comprises two end big envelopes 100. The coated length of energy absorbent block 200 circumference is depended on the axial length of energy absorbent block 200 and is effectively compressed stroke ratio by end big envelope 100, generally to the coated length of energy absorbent block 200 circumference, end big envelope 100 is decided to be energy absorbent block 200 and is compacted the half of rear axial length. In like manner can determine that the other end end big envelope 100 axial coated length to energy absorbent block 200.
Please refer to Fig. 1, Fig. 5 a and Fig. 5 b, wherein Fig. 5 a is the structural representation of fairlead in big stroke energy absorption device described in the utility model, and Fig. 5 b is the sectional view of fairlead in big stroke energy absorption device described in the utility model. As shown in Fig. 1, Fig. 5 a and Fig. 5 b, described fairlead 300 includes fairlead top 310, and with fairlead outer rim 320 that described fairlead top 310 is the plane of symmetry. Described fairlead top 310 is one-body molded with described fairlead outer rim 320, described fairlead top 310 with its on the left of fairlead outer rim form left side fairlead groove, and described fairlead top 310 with its on the right side of fairlead outer rim form right side fairlead groove.
Further, described fairlead outer rim 220 is provided with multiple fairlead projection 221. Best, described fairlead outer rim 220 is provided with 6 fairlead projections 221.
Similar with end big envelope 100, the surrounding of the fairlead outer rim 320 of fairlead 300 also has 6 fairlead projections 221, with the friction of surface of mould cavity during to reduce compression. The axial coated length of energy absorbent block 200 is depended on the axial length of energy absorbent block 200 and is effectively compressed stroke ratio by fairlead 300 equally, is generally compacted the half of rear axial length by the axial coated length of energy absorbent block 200 being decided to be energy absorbent block 200 pieces to set 300.
In sum, the big stroke energy absorption device of one provided by the utility model, including two end big envelopes, and the energy absorbent block of the multiple axially-aligned being arranged between two end big envelopes; Connected by fairlead between adjacent energy absorbent block; The left and right sides of described fairlead is provided with the fairlead groove for holding described energy absorbent block. The energy absorbent block of multistage relatively small axial size is assembled into the energy absorption device with big stroke by this utility model, not only improves energy absorption ability, it is thus also avoided that big stroke energy absorbent block compresses easy destabilization problems. Simultaneously as energy absorbent block inter-stage arranges fairlead, energy absorbent block circumference can be produced constraint so that energy absorbent block deformation is controlled, and according to energy absorbent block size and energy-absorbing demand, fairlead be carried out lightweight optimal design.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, it is possible to improved according to the above description or convert, all these improve and convert the protection domain that all should belong to this utility model claims.
Claims (9)
1. a big stroke energy absorption device, it is characterised in that include two end big envelopes and the energy absorbent block of the multiple axially-aligned being arranged between two end big envelopes; Connected by fairlead between adjacent energy absorbent block; The left and right sides of described fairlead is provided with the fairlead groove for holding described energy absorbent block.
2. big stroke energy absorption device according to claim 1, it is characterised in that described end big envelope includes big envelope top, and is positioned at the big envelope outer rim of the same side, described big envelope top.
3. big stroke energy absorption device according to claim 1, it is characterised in that described big envelope top and described big envelope outer rim are one-body molded, and described big envelope outer rim forms the big envelope groove for holding described energy absorbent block with described big envelope top.
4. big stroke energy absorption device according to claim 3, it is characterised in that be provided with multiple big envelope in described big envelope outer rim protruding.
5. big stroke energy absorption device according to claim 4, it is characterised in that be provided with 6 big envelope projections in described big envelope outer rim.
6. big stroke energy absorption device according to claim 1, it is characterised in that described fairlead includes fairlead top, and with fairlead outer rim that described fairlead top is the plane of symmetry.
7. big stroke energy absorption device according to claim 6, it is characterized in that, described fairlead top is one-body molded with described fairlead outer rim, described fairlead top with its on the left of fairlead outer rim formed left side fairlead groove, and described fairlead top with its on the right side of fairlead outer rim formed right side fairlead groove.
8. big stroke energy absorption device according to claim 7, it is characterised in that be provided with multiple fairlead in described fairlead outer rim protruding.
9. big stroke energy absorption device according to claim 8, it is characterised in that be provided with 6 fairlead projections in described fairlead outer rim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125183.6U CN205278224U (en) | 2015-12-30 | 2015-12-30 | Big stroke energy -absorbing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125183.6U CN205278224U (en) | 2015-12-30 | 2015-12-30 | Big stroke energy -absorbing device |
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| CN205278224U true CN205278224U (en) | 2016-06-01 |
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| CN201521125183.6U Active CN205278224U (en) | 2015-12-30 | 2015-12-30 | Big stroke energy -absorbing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673772A (en) * | 2015-12-30 | 2016-06-15 | 深圳市乾行达科技有限公司 | Large-stroke energy absorption device |
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- 2015-12-30 CN CN201521125183.6U patent/CN205278224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673772A (en) * | 2015-12-30 | 2016-06-15 | 深圳市乾行达科技有限公司 | Large-stroke energy absorption device |
| CN105673772B (en) * | 2015-12-30 | 2018-06-22 | 深圳市乾行达科技有限公司 | A kind of big stroke energy absorption device |
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