CN114810896B - Energy absorption module based on porous foam metal - Google Patents
Energy absorption module based on porous foam metal Download PDFInfo
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- CN114810896B CN114810896B CN202210715308.9A CN202210715308A CN114810896B CN 114810896 B CN114810896 B CN 114810896B CN 202210715308 A CN202210715308 A CN 202210715308A CN 114810896 B CN114810896 B CN 114810896B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/121—Vibration-dampers; Shock-absorbers using plastic deformation of members the members having a cellular, e.g. honeycomb, structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/123—Deformation involving a bending action, e.g. strap moving through multiple rollers, folding of members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/128—Vibration-dampers; Shock-absorbers using plastic deformation of members characterised by the members, e.g. a flat strap, yielding through stretching, pulling apart
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0266—Materials; Material properties solids porosity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention relates to the field of foam metal energy absorption, in particular to an energy absorption module based on porous foam metal. In order to solve the problems that the foam metal needs to have enough thickness to provide efficient vibration and energy filtering and absorbing effects and if one area is damaged by impact, the whole anti-collision energy-absorbing module is scrapped, and provides an energy-absorbing module based on porous foam metal, which comprises a plurality of energy-absorbing units, wherein adjacent energy-absorbing units are locked together through a lock head component and a lock hole component, a deformation beam, a wave plate, a main pull rope and a foam metal block are further arranged in the energy-absorbing units, used for transversely absorbing impact force generated in the process of collision, the upper side and the lower side of the energy-absorbing unit are respectively provided with a side stay cord through a clamping plate, the two ends of the side stay cord are respectively connected with a lock head component and a lock hole component which are arranged on the left side and the right side of the energy-absorbing unit, when the anti-collision plate is violently impacted to bend and deform the clamping plate, the side pull rope can pull the lock hole component to be separated from the lock hole component.
Description
Technical Field
The invention relates to the field of foam metal energy absorption, in particular to an energy absorption module based on porous foam metal.
Background
The porous foam metal is a special metal material containing foam pores, has small density and good heat and sound insulation performance due to the fact that the porosity of the porous foam metal is as high as ninety percent, can absorb electromagnetic waves, and is commonly used in the fields of aerospace, transportation, construction chemical industry and the like, and the patent CN213199066U discloses a composite rubber damping pad with a noise reduction function, wherein the foam metal is carried in various materials, so that the heat absorption, sound insulation and vibration filtration effects of the whole composite material are improved.
However, when the composite material carrying the foam metal is applied to the anti-collision energy-absorbing module, the foam metal is required to have enough thickness to provide efficient shock-absorbing and energy-absorbing effects because the foam metal longitudinally absorbs impact force, so that the thickness of the whole composite material is difficult to reduce, thereby affecting the application range of the whole composite material carrying the foam metal.
Disclosure of Invention
In order to overcome the defects that the foam metal needs to have enough thickness to provide efficient vibration filtering and energy absorbing effects, and if one area is damaged due to impact, the whole anti-collision energy absorbing module is scrapped, so that the maintenance cost is increased, the invention provides an energy absorbing module based on porous foam metal.
The technical scheme is as follows: a porous foam metal-based energy absorption module comprises a plurality of energy absorption units, wherein each energy absorption unit comprises a lock head assembly, a lock hole assembly, a mounting plate, a clamping plate, an anti-collision plate, a foam metal block, a deformation beam, a wave plate, a main pull rope and side pull ropes; the mounting plate is connected with the anti-collision plate through a plurality of clamping plates; a foam metal block is arranged between the anti-collision plate and the mounting plate; one side of the energy absorption unit is provided with two lock head components; two lockhole components are arranged on the other side of the energy absorption unit; the adjacent energy absorption units are locked together through the lock head assembly and the lock hole assembly; when the anti-collision plate is violently collided, the lock head component and the lock hole component can be separated; the rear side of the anti-collision plate is movably connected with a plurality of deformation beams; the deformation beams are connected in a penetrating way through a main pull rope; the upper side and the lower side of the deformation beam are respectively connected with a wave plate; the deformation beam, the corrugated plate and the main pull rope are all wrapped inside the foam metal block; the main pull ropes and the wave plates of the adjacent energy absorption units are jointed together; a side pull rope is arranged between the clamping plates positioned on the upper side of the energy absorption unit; a side pull rope is arranged between the clamping plates positioned on the lower side of the energy absorption unit; two ends of the side pull rope are respectively connected with the lock head assembly and the lock hole assembly arranged on the left side and the right side of the energy absorption unit; when the anti-collision plate is violently collided, the side pull rope can pull the lock head component to be separated from the lock hole component.
As an improvement of the scheme, the anti-collision plate consists of a plate main body, an L-shaped slide rail and a support beam, wherein the support beam structure is arranged in the middle of the rear side of the plate main body structure of the anti-collision plate, and the upper part and the lower part of the plate main body structure of the anti-collision plate are respectively provided with the L-shaped slide rail structure; two ends of all the deformation beams are respectively connected with two L-shaped sliding rail structures in a sliding manner.
As an improvement of the scheme, the anti-collision plate is positioned in the area between every two adjacent deformation beams and is respectively provided with a grooving structure, the grooving structures penetrate through the whole plate body of the anti-collision plate and the two L-shaped sliding rails of the anti-collision plate, and the grooving structures penetrate into the front part of the supporting beam structure of the anti-collision plate.
As an improvement of the scheme, the middle parts of all the deformation beams are respectively provided with a punching groove structure protruding backwards, and the punching groove structures of the deformation beams are wrapped on the rear side of the supporting beam of the anti-collision plate.
As an improvement of the scheme, two ends of all the deformation beams are respectively provided with two layers of step-shaped structures, and a deformation groove structure is respectively arranged at the corner area of each step-shaped structure at the end part of each deformation beam.
As an improvement of the above scheme, the right ends of all the wave plates are respectively provided with two third buckle structures; the left ends of all the wave plates are respectively provided with two clamping groove structures corresponding to the third clamping buckles.
As the improvement of the scheme, the middle part of each clamping plate is arranged to be of an arc structure protruding towards the direction far away from the mounting plate.
As the improvement of the scheme, the lock head component comprises a first spring telescopic rod, a first fixed block, a lock rod and a first pull block; the upper part and the lower part of one side of the mounting plate are respectively fixedly connected with a first spring telescopic rod; one side of the first spring telescopic rod is fixedly connected with a first fixed block; a lock rod is welded on the first fixed block; a first pull block is welded on the first fixed block; the first pulling block is fixedly connected with the side pulling rope.
As an improvement of the scheme, the lock hole assembly comprises a second spring telescopic rod, a second fixed block, a lock cylinder and a second pull block; the upper part and the lower part of the other side of the mounting plate are respectively fixedly connected with a second spring telescopic rod; one side of the telescopic rod of the second spring is fixedly connected with a second fixed block; a lock cylinder is welded on the second fixed block; a second pull block is welded on the second fixed block; the second pulling block is fixedly connected with a side pull rope.
As the improvement of the scheme, two through groove structures are arranged in the plate main body of the anti-collision plate.
The invention has the following advantages: when the anti-collision plate is impacted, the deformation beam in the impacted area is pushed to generate deformation to absorb part of impact force, the main pull rope is pulled to enable the surrounding deformation beams to contract and deform by pushing the wave plate, so that the rest impact force is transmitted to the foam metal block, and the foam metal block absorbs energy transversely;
through the above processing mode, expand the foam metal to the longitudinal energy absorption of impact force and go out horizontal energy-absorbing, improve the effective scope that the foam metal changes the impact force and dissolve, make the foam metal need not to have thicker thickness, still can provide efficient and strain the energy-absorbing effect, and rely on the mode that a plurality of energy-absorbing units splice and form whole crashproof energy-absorbing module, have between the adjacent energy-absorbing unit and provide buffer function's basis each other on, when single energy-absorbing unit appears the striking damage phenomenon, this energy-absorbing unit is in time come off from whole crashproof energy-absorbing module, avoid whole crashproof energy-absorbing module to scrap, make cost of maintenance obtain effectual control.
Drawings
FIG. 1 is a schematic perspective view of a single energy-absorbing unit of the present application;
FIG. 2 is a perspective view of a modular energy absorber module according to the present application;
FIG. 3 is a cross-sectional view of the fender of the present application;
fig. 4 is a schematic perspective view of the crash panel of the present application;
FIG. 5 is a perspective view of a deformable beam of the present application;
FIG. 6 is a schematic perspective view of an end portion of a deformed beam of the present application;
fig. 7 is a schematic perspective view of a right end of a wave plate according to the present application;
FIG. 8 is a schematic perspective view of the left end of the wave plate of the present application;
FIG. 9 is a perspective view of the lock cylinder assembly and side pull cord of the present application;
FIG. 10 is an enlarged view of the present application taken from area F1 of FIG. 9;
FIG. 11 is an enlarged view of the present application taken from area F2 of FIG. 9;
FIG. 12 is a perspective view of the locking hole assembly and the side pull string of the present application;
FIG. 13 is a schematic view of a partial connection of a modular energy absorber module according to the present application;
fig. 14 is an enlarged view of the area F3 of fig. 13 of the present application.
Number designation in the figures: 1-mounting plate, 11-lifting lug, 12-first rope connecting block, 13-second rope connecting block, 2-clamping plate, 21-first buckle, 22-third rope connecting block, 3-anti-collision plate, 31-plate main body, 32-L-shaped sliding rail, 33-supporting beam, 34-cutting groove, 35-through groove, 4-foam metal block, 5-deformation beam, 51-punching groove, 52-fourth rope connecting block, 53-second buckle, 54-deformation groove, 6-wave plate, 61-third buckle, 62-clamping groove, 7-main pull rope, 8-side pull rope, 101-first spring telescopic rod, 102-first fixing block, 103-locking rod, 104-first pull block, 201-second spring telescopic rod, 202-second fixing block, 203-lock cylinder, 204-second pull block.
Detailed Description
The following will further describe the technical solution with reference to specific embodiments, and it should be noted that: the words upper, lower, left, right, and the like used herein to indicate orientation are merely for the location of the illustrated structure in the corresponding figures. The serial numbers of the parts are themselves numbered herein, for example: first, second, etc. are used solely to distinguish one from another as to objects described herein, and do not have any sequential or technical meaning. What is said in this application is: the connection and coupling, unless otherwise indicated, include both direct and indirect connections.
Example 1
An energy absorption module based on porous foam metal is hereinafter referred to as an energy absorption module, and is shown in figures 1 and 2, the energy absorption module is formed by combining a plurality of energy absorption units, and is shown in figures 1 and 3-10 as a schematic structural diagram of a single energy absorption unit, wherein each energy absorption unit comprises a lock head assembly, a lock hole assembly, a mounting plate 1, a clamping plate 2, an anti-collision plate 3, a foam metal block 4, a deformation beam 5, a wave plate 6, a main pull rope 7 and a side pull rope 8; the upper side and the lower side of the mounting plate 1 are respectively welded with a plurality of clamping plates 2; the middle part of each clamping plate 2 is provided with an arc-shaped structure protruding towards the direction far away from the mounting plate 1; the front ends of all the clamping plates 2 are respectively clamped with the same anti-collision plate 3 through a first buckle 21 structure; a foam metal block 4 is arranged between the anti-collision plate 3 and the mounting plate 1; the rear side of the anti-collision plate 3 is movably connected with a plurality of deformation beams 5; the rear parts of all the deformation beams 5 are fixedly connected with the same main pull rope 7 through a fourth rope connecting block 52 structure; the upper sides of all the deformation beams 5 are respectively connected with a wave plate 6 through two second buckles 53; the lower sides of all the deformation beams 5 are also connected with a wave plate 6 through two second buckles 53 respectively; the deformation beam 5, the corrugated plate 6 and the main pull rope 7 are all wrapped inside the foam metal block 4; the right side of the anti-collision plate 3 is connected with two lock head components which are distributed up and down; the left side of the anti-collision plate 3 is connected with two lock hole assemblies which are distributed up and down; a side pull rope 8 is connected between the lock head assembly positioned at the upper side and the lock hole assembly positioned at the upper side; a side pull rope 8 is also connected between the lock head component positioned at the lower side and the lock hole component positioned at the lower side; two side stay ropes 8 respectively run through two first rope connection block 12 structures on the right side of the mounting plate 1, and sequentially run through a third rope connection block 22 structure in the middle of the clamping plate 2 on the same side, and respectively run through two second rope connection blocks 13 on the left side of the mounting plate 1, as shown in fig. 2, and as shown in fig. 13 and fig. 14, a plurality of energy absorption units are spliced into a connection schematic diagram of a whole energy absorption module, a plurality of groups of energy absorption units form a complete energy absorption module side by side, adjacent energy absorption units are connected and locked together through a lock head assembly and a lock hole assembly, the end parts of main stay ropes 7 between the adjacent energy absorption units are connected and bound together, and the wave plates 6 between the adjacent energy absorption units are connected and clamped together through a third buckle 61 structure and a clamping groove 62 structure.
As shown in fig. 4, the anti-collision plate 3 is composed of a plate main body 31, an L-shaped slide rail 32 and a support beam 33, the support beam 33 is arranged at the middle part of the rear side of the plate main body 31 structure of the anti-collision plate 3, and the upper part and the lower part of the plate main body 31 structure of the anti-collision plate 3 are respectively provided with the L-shaped slide rail 32 structure; two ends of all the deformation beams 5 are respectively connected with two L-shaped slide rail 32 structures in a sliding manner; the anti-collision plate 3 is provided with a cutting groove 34 structure in the area between every two adjacent deformation beams 5, the cutting groove 34 structure penetrates through the whole plate body 31 of the anti-collision plate 3 and the two L-shaped sliding rails 32 of the anti-collision plate 3, and the cutting groove 34 structure penetrates into the front part of the support beam 33 structure of the anti-collision plate 3.
As shown in fig. 5 and 6, the middle parts of all the deformation beams 5 are respectively provided with a punching groove 51 structure protruding backwards; two ends of the deformation beam 5 are both provided with two layers of step-shaped structures, and a deformation groove 54 structure is arranged at each corner area of the step-shaped structure at each end of the deformation beam 5.
As shown in fig. 7 and 8, the right ends of all the wave plates 6 are respectively provided with two third buckle structures 61; the left ends of all the wave plates 6 are respectively provided with two clamping groove 62 structures corresponding to the third clamping buckles 61.
As shown in fig. 9 and 11, the lock assembly includes a first spring extension rod, a first fixed block, a lock rod and a first pull block; the upper part and the lower part of one side of the mounting plate are respectively fixedly connected with a first spring telescopic rod; one side of the first spring telescopic rod is fixedly connected with a first fixed block; a lock rod is fixedly connected to the first fixed block; a first pull block is fixedly connected to the first fixed block; the first pulling block is fixedly connected with a side pulling rope; first spring telescopic link comprises first sleeve, first flexible member and first spring unit, first sleeve rigid coupling is at the right-hand member of mounting panel 1, the inside sliding connection of first sleeve has first flexible member, the outer end rigid coupling first fixed block 102 of first flexible member, the rigid coupling has first spring unit between first fixed block 102 and the first sleeve, and first spring unit cover is established at the surface of first flexible member, when the first piece 102 of pulling of 8 pulling ropes of side drives first fixed block 102 and removes to first sleeve direction, first fixed block 102 promotes first flexible member and contracts along first sleeve direction, first spring unit is compressed and produce the elastic force by first fixed block 102 to first sleeve direction simultaneously.
As shown in fig. 12, the locking hole assembly includes a second spring expansion rod 201, a second fixed block 202, a locking cylinder 203 and a second pulling block 204; the upper part and the lower part of the other side of the mounting plate 1 are respectively fixedly connected with a second spring telescopic rod 201; one side of the second spring telescopic rod 201 is fixedly connected with a second fixed block 202; a lock cylinder 203 is welded on the second fixed block 202; a second pull block 204 is welded on the second fixed block 202; the second pulling block 204 is fixedly connected with the side pulling rope 8; the second spring telescopic rod 201 is composed of a second sleeve, a second telescopic rod piece and a second spring component, the second sleeve is fixedly connected to the left end of the mounting plate 1, the second telescopic rod piece is slidably connected to the inside of the second sleeve, the outer end of the second telescopic rod piece is fixedly connected to a second fixed block 202, the second spring component is fixedly connected between the second fixed block 202 and the second sleeve, the second spring component is sleeved on the outer surface of the second telescopic rod piece, when the side pull rope 8 pulls the second pull block 204 to drive the second fixed block 202 to move towards the second sleeve direction, the second fixed block 202 pushes the second telescopic rod piece to retract along the second sleeve direction, and meanwhile, the second spring component is compressed towards the second sleeve direction by the second fixed block 202 and generates elastic force.
The mounting plate 1 is fastened on a protected carrier through a lifting lug 11, and comprises two lock head components, two lock hole components, a mounting plate 1, a plurality of clamping plates 2, an anti-collision plate 3, a foam metal block 4, a plurality of deformation beams 5, two wave plates 6, a main pull rope 7 and two side pull ropes 8, which form a group of energy absorption units, the groups of energy absorption units are distributed side by side, when the adjacent energy absorption units are mounted, an operator pulls a lock rod 103 on a first spring telescopic rod 101 of the left side energy absorption unit towards the direction far away from a lock cylinder 203 and pulls the lock cylinder 203 on a second spring telescopic rod 201 of the right side energy absorption unit towards the direction far away from the lock rod 103, so that the first spring telescopic rod 101 and the second spring telescopic rod 201 are compressed in opposite directions, after the lock rods 103 of the two energy absorption units are aligned with the lock cylinder 203, the compressed first spring telescopic rod 101 and the compressed second spring telescopic rod 201 are loosened, the lock rod 103 of the lock head assembly of the energy-absorbing unit is inserted into the lock cylinder 203 of the lock hole assembly of the right group of energy-absorbing units, so that the lock head assemblies of two adjacent energy-absorbing units are mutually locked with the lock hole assembly, the end parts of the main pull ropes 7 of the adjacent energy-absorbing units are bound together by an operator to form a main pull rope 7 group, the wave plates 6 of the adjacent energy-absorbing units are clamped together through the third buckle 61 structure and the clamping groove 62 structure to form a wave plate 6 group, so that the adjacent energy-absorbing units are locked together, and as shown in fig. 2, the multiple groups of energy-absorbing units are locked together to form a complete energy-absorbing module.
The structure of the plate body 31 of the anti-collision plate 3 and the structure of the L-shaped slide rail 32 are divided into a plurality of small blocks by the structure of the cutting groove 34, the structure of the cutting groove 34 goes deep into the supporting beam 33, so that the anti-collision plate 3 is divided into a plurality of independent anti-collision areas, when an independent anti-collision area of the anti-collision plate 3 is impacted, the plate body 31 of the impacted independent anti-collision area of the anti-collision plate 3 is collapsed backwards by the impact force of the impact to generate deformation, when the impact force of the anti-collision plate 3 is larger, the supporting beam 33 structure of the impacted independent anti-collision area of the anti-collision plate 3 is fractured along the structures of the cutting grooves 34 at both sides by the impact force of the plate body 31, so that the independent anti-collision area of the anti-collision plate 3 is separated from the whole anti-collision plate 3, the middle punching groove 51 of the deformation beam 5 at the rear side of the impact area is pushed by the separated supporting beam 33 structure, both the upper and lower sides of the deformation beam 5 are blocked by the wave plates 6, and both ends of the deformation beam 5 are provided with the deformation grooves 54, the supporting beam 33 structure of the anti-collision plate 3 drives the whole deformation beam 5 to bend backwards to generate deformation so as to absorb part of impact force, and the anti-collision plate 3 and the deformation beam 5 generate local deformation to carry out primary partition absorption treatment on the received impact force.
When the deformation beam 5 receives the backward impact force from the supporting beam 33 structure of the anti-collision plate 3, the middle area of the deformation beam 5 generates local deformation, the fourth rope connecting block 52 structure of the deformation beam 5 pulls the main rope 7 group backwards to drive the surrounding deformation beam 5 which is not impacted and has no deformation, the wave plate 6 group is pushed to shrink and deform towards the deformation beam 5 which generates local deformation by the second buckle 53 structure, the deformation beam 5 which has no deformation moves along the L-shaped sliding rail 32 structure of the anti-collision plate 3, so that the rest impact force is transmitted to the wave plate 6 group through the anti-collision plate 3, the deformation beam 5 and the main rope 7 group, and the rest impact force is transmitted to each foam metal block 4 during the shrinkage and deformation of the wave plate 6 group, the foam metal blocks 4 absorb the longitudinal impact force to the anti-collision plate 3 transversely, and the longitudinal expansion of the foam metal blocks 4 to the impact force is absorbed transversely, the effective range of the foam metal block 4 for dissolving the impact force is increased, so that the foam metal block 4 can still provide efficient vibration filtering and energy absorbing effects without thick thickness.
When an independent anti-collision area of the anti-collision plate 3 is impacted, the clamping plate 2 positioned between the anti-collision plate 3 and the impact area of the mounting plate 1 is bent and deformed, when the impact force is far larger than the value of the bearing range which can be absorbed by the foam metal block 4, the bending deformation degree of the clamping plate 2 is too large, and the two side pull ropes 8 are respectively pulled to move in the upper and lower directions, so that the right ends of the two side pull ropes 8 respectively pull the two first pull blocks 104 to move in the direction away from the lock cylinder 203, and simultaneously the left ends of the two side pull ropes 8 respectively pull the two second pull blocks 204 to move in the direction away from the lock rod 103, so that the first pull block 104 drives the first fixed block 102 to push the first spring telescopic rod 101 to compress in the direction away from the lock cylinder 203, the second pull block 204 drives the second fixed block 202 to push the second spring telescopic rod 201 to compress in the direction away from the lock rod 103, so that the two lock rods 103 connected with the right end of the side pull rope 8 are pulled out from the two lock cylinders 203 of the other group of the energy absorption units on the right side, and the two lock cylinders 203 connected with the left end of the side pull rope 8 are pulled away from the lock rods 103 of the other group of energy-absorbing units on the left side, so that the lock head components and the lock hole components of the energy-absorbing units are unlocked, the impacted energy-absorbing units are timely separated from the whole energy-absorbing module, and the adjacent energy-absorbing units are prevented from being seriously damaged when the energy-absorbing units are violently impacted.
When the impact force of the collision on the collision-proof plate 3 is within the bearing range value which can be absorbed by the foam metal block 4, the clamping plate 2 between the collision-proof plate 3 and the mounting plate 1 is bent and deformed, and during the bending of the clamping plate 2 and the pulling of the side pull rope 8, because the two ends of the side pull rope 8 are respectively in the process of pulling the first pull block 104 and the second pull block 204, the first pull block 104 and the second pull block 204 are subjected to the reverse elastic force of the spring components in the first spring telescopic rod 101 and the second spring telescopic rod 201, the side pull rope 8 cannot pull the lock rod 103 connected with the side pull rope out of the adjacent lock cylinder 203, and the side pull rope 8 cannot pull the lock cylinder 203 connected with the side pull rope out of the adjacent lock rod 103, so that the energy absorption unit cannot be unlocked from the whole energy absorption module, and the maintenance workload of the energy absorption module after the collision is reduced.
Finally, the mode that the whole anti-collision energy-absorbing module is formed by splicing a plurality of energy-absorbing units is realized, on the basis that the adjacent energy-absorbing units mutually provide a buffer function, when a single energy-absorbing unit has a collision damage phenomenon, the energy-absorbing unit is timely released from the whole anti-collision energy-absorbing module, the whole anti-collision energy-absorbing module is prevented from being scrapped, and the maintenance cost is effectively controlled.
Example 2
As shown in fig. 4, the present embodiment is further optimized based on embodiment 1, and two through grooves 35 are formed in the plate main body 31 of the impact-proof plate 3.
When an independent anti-collision area of the anti-collision plate 3 is slightly impacted, the through groove 35 in the plate main body 31 of the anti-collision plate 3 is impacted by the impact and collapses backwards to generate deformation, so that the slight impact force of the anti-collision plate 3 is absorbed, the light energy absorption effect is provided for the energy absorption unit, the whole energy absorption mechanism is prevented from being triggered by the slight impact of the energy absorption unit, the whole energy absorption unit needs to be replaced, and the maintenance cost is further effectively controlled.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. An energy absorption module based on porous foam metal comprises a plurality of energy absorption units, and is characterized in that the energy absorption units comprise a mounting plate (1), a clamping plate (2), an anti-collision plate (3), a foam metal block (4), a lock head assembly, a lock hole assembly, a deformation beam (5), a wave plate (6), a main pull rope (7) and side pull ropes (8); the mounting plate (1) is connected with the anti-collision plate (3) through a plurality of clamping plates (2); a foam metal block (4) is arranged between the anti-collision plate (3) and the mounting plate (1); one side of the energy absorption unit is provided with two lock head components; two lockhole components are arranged on the other side of the energy absorption unit; the adjacent energy absorption units are locked together through the lock head assembly and the lock hole assembly; when the anti-collision plate (3) is violently impacted, the lock head component and the lock hole component can be separated; the rear side of the anti-collision plate is movably connected with a plurality of deformation beams (5); the deformation beams (5) are connected in a penetrating way through a main pull rope (7); the upper side and the lower side of the deformation beam (5) are respectively connected with a wave plate (6); the deformation beam (5), the wave plate (6) and the main pull rope (7) are all wrapped inside the foam metal block (4); the main pull rope (7) and the wave plate (6) of the adjacent energy absorption units are jointed together; a side pull rope is arranged between the clamping plates (2) positioned on the upper side of the energy absorption unit; a side pull rope (8) is arranged between the clamping plates (2) positioned at the lower side of the energy absorption unit; two ends of the side pull rope (8) are respectively connected with the lock head assembly and the lock hole assembly arranged on the left side and the right side of the energy absorption unit; when the anti-collision plate is violently collided, the side pull rope can pull the lock head component to be separated from the lock hole component.
2. The porous foam metal-based energy absorption module according to claim 1, wherein the crash panel (3) is composed of a panel body (31), L-shaped slide rails (32) and support beams (33), the support beam (33) structure is arranged in the middle of the rear side of the panel body (31) structure of the crash panel (3), and the L-shaped slide rails (32) structure are respectively arranged at the upper part and the lower part of the panel body (31) structure of the crash panel (3); two ends of all the deformation beams (5) are respectively connected with two L-shaped sliding rail (32) structures in a sliding manner.
3. The porous foam metal-based energy absorption module according to claim 2, wherein the crash panel (3) is provided with a notch (34) structure in the area between every two adjacent deformation beams (5), the notch (34) structure penetrates through the whole panel body (31) of the crash panel (3) and two L-shaped sliding rails (32) of the crash panel (3), and the notch (34) structure penetrates into the front part of the support beam (33) structure of the crash panel (3).
4. A porous metal foam-based energy absorption module according to claim 2, characterized in that the middle of all deformation beams (5) is provided with a rearwardly protruding notching (51) structure, and the notching (51) structure of the deformation beams (5) is wrapped around the rear side of the support beam (33) of the crash panel (3).
5. The porous foam metal-based energy absorption module as claimed in claim 1, wherein both ends of all the deformation beams (5) are provided with two-layer stepped structures, and a deformation groove (54) structure is formed in each corner region of each end stepped structure of the deformation beam (5).
6. The porous metal foam-based energy absorption module as claimed in claim 1, wherein the right ends of all the corrugated plates (6) are respectively provided with two third buckle (61) structures; the left ends of all the wave plates (6) are respectively provided with two clamping groove (62) structures corresponding to the third buckles (61).
7. A porous metal foam-based energy absorption module according to claim 1, characterized in that the middle part of each catch plate (2) is arranged as an arc-shaped structure protruding away from the mounting plate (1).
8. The porous foam metal-based energy absorption module of claim 1, wherein the lock head assembly comprises a first spring telescopic rod (101), a first fixed block (102), a lock rod (103) and a first pull block (104); the upper part and the lower part of one side of the mounting plate (1) are respectively fixedly connected with a first spring telescopic rod (101); one side of the first spring telescopic rod (101) is fixedly connected with a first fixed block (102); a lock rod (103) is fixedly connected to the first fixed block (102); a first pull block (104) is fixedly connected to the first fixed block (102); the first pulling block (104) is fixedly connected with the side pulling rope (8).
9. The porous foam metal-based energy absorption module as claimed in claim 1, wherein the lock hole assembly comprises a second telescopic spring rod (201), a second fixed block (202), a lock cylinder (203) and a second pull block (204); the upper part and the lower part of the other side of the mounting plate (1) are respectively fixedly connected with a second spring telescopic rod (201); one side of the second spring telescopic rod (201) is fixedly connected with a second fixed block (202); a lock cylinder (203) is fixedly connected to the second fixed block (202); a second pull block (204) is fixedly connected to the second fixed block (202); the second pulling block (204) is fixedly connected with the side pulling rope (8).
10. The porous metal foam-based energy absorption module of claim 2, wherein the crash panel (3) has two through-slot (35) structures formed in the panel body (31).
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| CN202210715308.9A CN114810896B (en) | 2022-06-23 | 2022-06-23 | Energy absorption module based on porous foam metal |
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