CN110388405A - Impact energy-absorbing protective device - Google Patents
Impact energy-absorbing protective device Download PDFInfo
- Publication number
- CN110388405A CN110388405A CN201910661898.XA CN201910661898A CN110388405A CN 110388405 A CN110388405 A CN 110388405A CN 201910661898 A CN201910661898 A CN 201910661898A CN 110388405 A CN110388405 A CN 110388405A
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- Prior art keywords
- energy
- absorbing
- cylinder
- guide pipe
- protective device
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- 230000001681 protective effect Effects 0.000 title claims abstract description 59
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 230000002929 anti-fatigue Effects 0.000 claims abstract description 7
- 239000000872 buffer Substances 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 20
- 239000004568 cement Substances 0.000 claims description 12
- 230000001413 cellular effect Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 4
- 230000003116 impacting effect Effects 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000004080 punching Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The present invention provides a kind of impact energy-absorbing protective devices, including energy-absorbing cylinder, and for high tough antifatigue alloy material piece, the first end of energy-absorbing cylinder has nozzle, and the second end of energy-absorbing cylinder is closed；Mounting flange is located in the first end of energy-absorbing cylinder, for connecting by fender；Guide pipe, the second end of guide pipe protrude into intracavitary in energy-absorbing cylinder from the tube port position of energy-absorbing cylinder；And Crashworthy plate, it is fastenedly connected with the first end of guide pipe.Present invention employs the energy-absorbing cylinders made of high tough antifatigue alloy material, the energy that impact force generates in collision process is absorbed by the stretcher strain of energy-absorbing cylinder, since the yield strength of energy-absorbing cylinder is high, elongation percentage is big, therefore the length of whole device and volume can correspondingly reduce under the premise of guaranteeing energy absorption, it is difficult to realize light-weighted technical problem under the premise of guaranteeing energy absorption to efficiently solve pressing-crack energy absorption device, advantageously reduces the weight of impact energy-absorbing protective device.
Description
Technical field
The invention belongs to passive security protective device technical fields, are to be related to a kind of impact energy-absorbing protection more specifically
Device.
Background technique
Currently, impact energy-absorbing protective device is mainly to complete to inhale by the crumple deformation of cellular material part, conquassation pipe etc.
Energy task, after the completion of deformation, cellular material part, conquassation pipe etc. can be stacked into certain altitude, influence to impact energy-absorbing protective device
Stroke；In addition, the crushing strength of existing pressing-crack energy absorption device (belonging to one of impact energy-absorbing protective device) is general
Within 35MPa, it is therefore desirable to which sufficiently large sectional area just can guarantee crushing force value and energy absorption, however sectional area increase is
Mean that volume, quality, cost etc. increase, is unfavorable for pressing-crack energy absorption device and realizes lightweight.
Summary of the invention
The purpose of the present invention is to provide a kind of impact energy-absorbing protective devices, including but not limited to solution crushing type energy-absorbing dress
It sets and is difficult to realize light-weighted technical problem under the premise of guaranteeing energy absorption.
To achieve the goals above, the present invention provides a kind of impact energy-absorbing protective devices, comprising:
Energy-absorbing cylinder, the first end for high tough antifatigue alloy material piece, the energy-absorbing cylinder have nozzle, the energy-absorbing cylinder
Second end closing；
Mounting flange is located in the first end of the energy-absorbing cylinder, for connecting by fender；
Guide pipe, the second end of the guide pipe protrude into intracavitary in the energy-absorbing cylinder from the tube port position of the energy-absorbing cylinder；
And
Crashworthy plate is fastenedly connected with the first end of the guide pipe.
Further, the first limit hole is offered on the energy-absorbing cylinder, the second limit hole, institute is offered on the guide pipe
State impact energy-absorbing protective device further include:
Shear pin, the shear pin are plugged in first limit hole and second limit hole.
Further, the end face of the second end of the guide pipe is contacted with the inner surface of the second end of the energy-absorbing cylinder.
Further, the impact energy-absorbing protective device further include:
Power-absorbing is placed in the interior intracavitary of the energy-absorbing cylinder, the end face of the second end of the power-absorbing and the suction
The inner surface contact of the second end of energy cylinder；And
Partition is located between the second end of the guide pipe and the first end of the power-absorbing.
Further, the partition is fixedly arranged in the inner hole of the guide pipe, and the first end of the power-absorbing protrudes into institute
It states in the inner hole of guide pipe and is supported with the partition.
Further, the power-absorbing is cellular solid part.
Further, the impact energy-absorbing protective device further include:
Elastic buffer is located between the second end of the guide pipe and the second end of the energy-absorbing cylinder.
Further, the elastic buffer includes:
The first end of cylinder body, the cylinder body has opening, and the second end of the cylinder body and the second end of the guide pipe are supported
Top；
End cap is covered in the opening；
It supports through the end cap and with the second end of the energy-absorbing cylinder one end of piston rod, the bar portion of the piston rod；
And
Elastic cement is filled in the interior intracavitary of the cylinder body.
Further, the elastic buffer includes:
The first end of cylinder body, the cylinder body has opening, and the second end of the cylinder body and the second end of the guide pipe are supported
Top；
End cap is covered in the opening；
It supports through the end cap and with the second end of the energy-absorbing cylinder one end of piston rod, the bar portion of the piston rod；
And
Spring is located between the second end of the cylinder body and the piston portion of the piston rod.
Further, anti-creep tooth is convexly equipped on the surface of the Crashworthy plate or be covered with anti-slip layer.
The beneficial effect of impact energy-absorbing protective device provided by the invention is: using by high tough antifatigue alloy material
Energy-absorbing cylinder made of expecting, the energy that impact force generates in collision process is absorbed by the stretcher strain of energy-absorbing cylinder, due to energy-absorbing
The yield strength of cylinder is high, elongation percentage is big, therefore the length of whole device and volume can be corresponding under the premise of guaranteeing energy absorption
Ground reduces, so that efficiently solving pressing-crack energy absorption device is difficult to realize light-weighted technology under the premise of guaranteeing energy absorption
Problem advantageously reduces the weight of impact energy-absorbing protective device, enhances the energy-absorbing effect of impact energy-absorbing protective device.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the stereoscopic schematic diagram for the impact energy-absorbing protective device that the embodiment of the present invention one provides；
Fig. 2 is the axis diagrammatic cross-section for the impact energy-absorbing protective device that the embodiment of the present invention one provides；
Fig. 3 is the axis diagrammatic cross-section after the impact energy-absorbing protective device that the embodiment of the present invention one provides is subjected to impact；
Fig. 4 is the axis diagrammatic cross-section of impact energy-absorbing protective device provided by Embodiment 2 of the present invention；
Fig. 5 is the axis diagrammatic cross-section for the impact energy-absorbing protective device that the embodiment of the present invention three provides.
Wherein, each appended drawing reference in figure:
1-impact energy-absorbing protective device, 10-energy-absorbing cylinders, 20-mounting flanges, 30-guide pipes, 40-Crashworthy plates,
50-shear pins, 60-power-absorbings, 70-partitions, 80-elastic buffers, 11-cylinder ontologies, 12-reinforcement parts, 13-the
One limit hole, the 31-the second limit hole, 32-limiting slots, 81-cylinder bodies, 82-end caps, 200-mounting holes, 400-anti-climbing teeth,
831-piston portions, 832-bar portions.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that: when component is referred to as " being fixed on " or " being set to " another component, it can be directly another
On a component or indirectly on another component.When a component is known as " being connected to " another component, it can be with
It is directly or indirectly to be connected on another component.The orientation or position of the instructions such as term " on ", "lower", "left", "right"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to this patent
System, for the ordinary skill in the art, can understand the concrete meaning of above-mentioned term as the case may be.Term
" first ", " second " etc. are used merely to facilitate description purpose, are not understood to indicate or imply relative importance or implicit finger
The quantity of bright technical characteristic.The meaning of " plurality " is two or more for term, unless otherwise specifically defined.
Now impact energy-absorbing protective device provided by the invention is illustrated.
Embodiment one:
Please refer to Fig.1 to Fig.3, the impact energy-absorbing protective device 1 include energy-absorbing cylinder 10, mounting flange 20, guide pipe 30 with
And Crashworthy plate 40, wherein energy-absorbing cylinder 10 is high tough antifatigue alloy material piece, that is, prolonging for the alloy material of energy-absorbing cylinder 10 is made
Stretching rate is more than or equal to 70%, and herein, energy-absorbing cylinder 10 preferably can achieve 550~1350MPa (million using yield strength
Pa), elongation percentage can achieve 80%~110% goddess in the moon's steel (comprising 0.02C:30Mn:3Al:3Si etc.) and be made, and press at present
The compression ratio of formula power-absorbing of bursting is usually less than 70%, and the first end of energy-absorbing cylinder 10 has a nozzle, and the second of energy-absorbing cylinder 10
End seal is closed；20 ring of mounting flange is located in the first end of energy-absorbing cylinder 10, and for connecting by fender, i.e. mounting flange 20 can weld
It connects on by fender, or is threaded through in the mounting hole 200 of mounting flange 20 by fasteners such as bolts by mounting flange 20
It is fixed on by fender；The second end of guide pipe 30 protrudes into intracavitary in energy-absorbing cylinder 10 from the tube port position of energy-absorbing cylinder 10；Anticollision
Plate 40 and the first end of guide pipe 30 are fastenedly connected.It is understood that the second end of guide pipe 30 can be along energy-absorbing cylinder 10
Inner cavity moves back and forth；The surface of the first end against guide pipe 30 of Crashworthy plate 40 is vertical with the axis of guide pipe 30, favorably
In the area for receiving forward impact power for increasing guide pipe 30.
Preferably, energy-absorbing cylinder 10 includes cylinder ontology 11 and reinforcement part 12, wherein cylinder ontology 11 connects with reinforcement part 12, adds
Strong portion 12 is looped around tube port position, and the wall thickness of reinforcement part 12 is greater than the wall thickness of cylinder ontology 11, and mounting flange 20 is set in reinforcement
In portion 12, and it is fastenedly connected with reinforcement part 12.When impact energy-absorbing protective device 1 impacted when, Crashworthy plate 40 at first by
Impact, then 40 ejection guide pipe 30 of Crashworthy plate extends further into the interior intracavitary of energy-absorbing cylinder 10, until the second end of guide pipe 30
With the second end in contact of energy-absorbing cylinder 10, as shown in figure 3, then after the second end of the second end ejection energy-absorbing cylinder 10 of guide pipe 30
It moves back, and then extends an ontology 11, the energy of impact force generation is absorbed by the stretcher strain of cylinder ontology 11, to protect quilt
Fender damage.Herein it should be further noted that the stretcher strain of cylinder ontology 11 can be divided into two stages, first
Stage is elastic deformation stage, and second stage is plastic period, if the energy quilt that impact force generates in the first phase
It fully absorbs, after external force is removed, cylinder ontology 11 can be restored to original size, and no replacement is required when maintenance；If impact force
The energy demand of generation can be just completely absorbed in second stage, then cylinder ontology 11 can not be restored to original size, when maintenance
It is replaced.
Impact energy-absorbing protective device 1 provided by the invention uses the energy-absorbing made of high tough antifatigue alloy material
Cylinder 10 absorbs the energy that impact force generates in collision process by the stretcher strain of energy-absorbing cylinder 10, due to bending for energy-absorbing cylinder 10
It is big to take intensity height, elongation percentage, therefore the length of whole device and volume can correspondingly reduce under the premise of guaranteeing energy absorption,
It is difficult to realize light-weighted technical problem under the premise of guaranteeing energy absorption to efficiently solve pressing-crack energy absorption device, is had
Conducive to the weight for reducing impact energy-absorbing protective device 1, the energy-absorbing effect of impact energy-absorbing protective device 1 is enhanced.
Further, Fig. 2 and Fig. 3 are please referred to, in the present embodiment, the first limit hole 13 is offered on energy-absorbing cylinder 10,
Meanwhile the second limit hole 31 is offered on guide pipe 30, impact energy-absorbing protective device 1 further includes shear pin 50, the shear pin
50 are plugged in the first limit hole 13 and the second limit hole 31.Specifically, the first limit hole 13 runs through the reinforcement part of energy-absorbing cylinder 10
Barrel at 12, the second limit hole 31 run through the tube wall of guide pipe 30, under original state, the first limit hole 13 and the second limit hole
31 overlappings, shear pin 50 wear in both, effectively prevent guide pipe 30 and separate with energy-absorbing cylinder 10；When impact energy-absorbing is anti-
Protection unit 1 is impacted, and when impact force is more than certain threshold value, shear pin 50 is disconnected, and the second end of guide pipe 30 is further
The intracavitary propulsion into energy-absorbing cylinder 10, and then the second end of ejection energy-absorbing cylinder 10 retreats, and an ontology 11 is driven to be stretched
It deforms to absorb the energy of impact force generation.
Further, referring to Fig. 2, in the present embodiment, the of the end face of the second end of guide pipe 30 and energy-absorbing cylinder 10
The inner surface at two ends contacts, i.e., in the initial state, the second end of guide pipe 30 with the second end in contact of energy-absorbing cylinder 10, one
Denier shear pin 50 disconnects, the second end of guide pipe 30 can the second end of ejection energy-absorbing cylinder 10 retreat, and drive an ontology 11
It is draw textured the second end hair of second end and energy-absorbing cylinder 10 that guide pipe 30 is avoided to absorb the energy of impact force generation
Collision before the shape that changes improves the stability of endergonic process.
Optionally, referring to Fig. 1, in the present embodiment, anti-creep tooth 400 is convexly equipped on the surface of Crashworthy plate 40, or
Anti-slip layer, the i.e. projection on the surface of the first end of the separate guide pipe 30 of Crashworthy plate 40 are covered on the surface of Crashworthy plate 40
There is anti-climbing tooth 400 or is covered with anti-slip layer.It can be effectively prevented two quilts for being mounted with impact energy-absorbing protective device 1 in this way
Fender rides when mutually colliding and climbs phenomenon, avoids to ride and climbs the energy-absorbing effect that phenomenon weakens impact energy-absorbing protective device 1, from
And it improves to by the protection effect of fender.
Embodiment two:
Referring to Fig. 4, almost the same, the main region of impact energy-absorbing protective device and embodiment one provided in this embodiment
Be not: impact energy-absorbing protective device 1 further includes power-absorbing 60 and partition 70, wherein power-absorbing 60 is accommodated in energy-absorbing cylinder
10 it is interior intracavitary, and the end face of the second end of power-absorbing 50 is contacted with the inner surface of the second end of energy-absorbing cylinder 10, partition 70
It is folded between the second end of guide pipe 30 and the first end of power-absorbing 60.Specifically, 70 barrier of partition is in guide pipe 30
Between second end and the first end of power-absorbing 60, not only the second end with guide pipe 30 was supported, but also first with power-absorbing 60
End is supported, and is conducive to guide pipe 30 and is passed through partition 70 for impact force Transmit evenly to power-absorbing 60；Power-absorbing 60 is more
Hole solid piece of material, i.e. power-absorbing 60 are by aluminium foil cellular material, stainless steel foil cellular material, acrylic fibers corrugated paper, foamed aluminium
Equal cellular solids are made, so that power-absorbing 60 has the characteristics such as light, energy-absorbing effect is good, advantageously reduce impact in this way
The overall weight of energy-absorbing protective device 1；When impact energy-absorbing protective device 1 is impacted, after shear pin 50 disconnects, energy-absorbing cylinder 10 is first
Flexible deformation first occurs, the energy of impact force generation is absorbed by flexible deformation, until impact force value reaches power-absorbing 60
Conquassation value when, power-absorbing 60 starts to carry out crumple deformation, and then passes through the flexible deformation and power-absorbing 60 of energy-absorbing cylinder 10
The common energy for absorbing impact force and generating of crumple deformation, until after power-absorbing 60 reaches maximum compression stroke, energy-absorbing cylinder 10
Then it is plastically deformed, the dump energy of impact force generation is absorbed by being plastically deformed, is disappeared in this way by multistage energy-absorbing
Except collision bring impact, the energy absorption of impact energy-absorbing protective device 1 is effectively increased, improves impact energy-absorbing protective device
1 energy-absorbing effect.
Further, referring to Fig. 4, in the present embodiment, partition 70 is fixed in the inner hole of guide pipe 30, together
When, the first end of power-absorbing 60 protrudes into the inner hole of guide pipe 30, and supports with partition 70.Specifically, in guide pipe 30
Second end on offer limiting slot 32, limiting slot 32 is connected to the inner hole of guide pipe 30, and 32 self- steering pipe 30 of limiting slot
The end face of second end extend along the axis of guide pipe 30 to the middle part of guide pipe 30, partition 70 is accommodated in limiting slot 32, inhales
The cross-sectional profiles of the cross-sectional profiles and limiting slot 32 of energy element 60 match, and the first end of power-absorbing 60 protrudes into limit
In the slot 32 of position, partition 70 is supported on the slot bottom of limiting slot 32.After crumple deformation occurs for power-absorbing 60, power-absorbing 60
Be accommodated in limiting slot 32 completely, thus effectively avoids 60 heap poststack of power-absorbing influence guide pipe 30 and energy-absorbing cylinder 10 it
Between stroke.
Embodiment three:
Referring to Fig. 5, almost the same, the main region of impact energy-absorbing protective device and embodiment one provided in this embodiment
Be not: impact energy-absorbing protective device 1 further includes elastic buffer 80, and elastic buffer 80 is folded in the second end of guide pipe 30
Between the second end of energy-absorbing cylinder 10.Specifically, elastic buffer 80 can be elastic cement buffer, spring buffer, liquid
Compression buffer etc., when impact energy-absorbing protective device 1 is impacted, after shear pin 50 disconnects, energy-absorbing cylinder 10 and elastic buffer 80
Flexible deformation and compressive deformation occur respectively, it is common by the flexible deformation of energy-absorbing cylinder 10 and the compressive deformation of elastic buffer 80
The energy that impact force generates is absorbed, until elastic buffer 80 reaches maximum compression stroke, plasticity change then occurs for energy-absorbing cylinder 10
Shape absorbs the dump energy of impact force generation by being plastically deformed, and eliminates collision bring punching by multistage energy-absorbing in this way
It hits, effectively increases the energy absorption of impact energy-absorbing protective device 1, improve the energy-absorbing effect of impact energy-absorbing protective device 1.
Optionally, in the present embodiment, elastic buffer 80 may include cylinder body 81, end cap 82, piston rod and elasticity
Clay, wherein the first of cylinder body 81 has opening, and the second end of cylinder body 81 and the second end of guide pipe 30 are supported, 82 envelope of end cap
It covers in the opening of cylinder body 81, end cap 82 is run through in one end of the bar portion 832 of piston rod, and supports with the second end of energy-absorbing cylinder 10
Top, elastic cement are filled in the interior intracavitary of cylinder body 81.Specifically, the piston portion 831 of piston rod is accommodated in cylinder body 81 and end cap 82
In the seal chamber being enclosed, and there is throttle clearance between piston portion 831 and cylinder body 81, the one of the bar portion 832 of piston rod
End is supported on the inner surface of the second end of energy-absorbing cylinder 10, and the other end of bar portion 832 connects with piston portion 831, and elastic cement is filled out
It fills between the second end and piston portion 831 of cylinder body 81.When impact energy-absorbing protective device 1 is impacted, energy-absorbing cylinder 10 is first
Flexible deformation occurs, absorbs the energy of impact force generation by flexible deformation, while the first ejection cylinder body 81 of guide pipe 30 is to leaning on
The direction of the second end of nearly energy-absorbing cylinder 10 is mobile, and the second end of cylinder body 81 and piston portion 831 is driven to squeeze elastic cement,
At this point, elastic cement slowly flows between piston portion 831 and end cap 82 from throttle clearance, is realized by throttle effect and absorb punching
The energy of power generation is hit, until elastic cement reaches maximum compression stroke, energy-absorbing cylinder 10 is then plastically deformed, and passes through plasticity
It deforms to absorb the dump energy of impact force generation, eliminates collision bring impact by multistage energy-absorbing in this way, effectively increase
The energy absorption of impact energy-absorbing protective device 1 is added.Certainly, as the case may be and demand, in other embodiments of the invention,
Elastic cement can be replaced using spring, be folded in spring between the second end of cylinder body 81 and piston portion 831, do not make herein only
One limits.
Further, referring to Fig. 5, in the present embodiment, the second end of cylinder body 81 protrudes into the inner hole of guide pipe 30.Tool
Body, limiting slot 32 is offered in the second end of guide pipe 30, limiting slot 32 is connected to the inner hole of guide pipe 30, and is limited
The end face of the second end of 32 self- steering pipe 30 of slot along guide pipe 30 axis to the middle part of guide pipe 30 extend, cylinder body 81 it is transversal
The cross-sectional profiles of facial contour and limiting slot 32 match, and the second end of cylinder body 81 protrudes into limiting slot 32 and limiting slot 32
Slot bottom support.After compressive deformation occurs for elastic buffer 80, elastic buffer 80 is accommodated in completely in limiting slot 32, in this way
Efficiently avoid the stroke between the influence guide pipe 30 of elastic buffer 80 and energy-absorbing cylinder 10.
Example IV:
Impact energy-absorbing protective device provided in this embodiment is almost the same with embodiment three, and the main distinction is: punching
Hitting energy-absorbing protective device 1 further includes partition 70, and partition 70 is folded between the second end of guide pipe 30 and the extension end of piston rod,
The second end of cylinder body 10 and the second end of energy-absorbing cylinder 10 are supported.Specifically, the second end of an end face of partition 70 and guide pipe 30
It supports, one end of the bar portion 832 of piston rod is stretched out outside cylinder body 81 after end cap 82, and is supported with the other end of partition 70
Top, the end face of the second end of cylinder body 10 is contacted with the inner surface of the second end of energy-absorbing cylinder 10.When impact energy-absorbing protective device 1 by
When impact, flexible deformation occurs first for energy-absorbing cylinder 10, and the energy of impact force generation, while guide pipe are absorbed by flexible deformation
30 first ejection partitions 70 drive piston rod mobile to the direction of the second end close to cylinder body 81, so that piston portion 831 and cylinder body 81
Second end elastic cement is squeezed, at this point, elastic cement slowly flows into piston portion 831 and end cap 82 from throttle clearance
Between, the portion of energy for absorbing impact force and generating is realized by throttle effect, until elastic cement reaches maximum compression stroke, is inhaled
Energy cylinder 10 is then plastically deformed, and the dump energy of impact force generation is absorbed by being plastically deformed, and is inhaled in this way by multistage
It can be impacted to eliminate collision bring, effectively increase the energy absorption of impact energy-absorbing protective device 1, it is anti-to improve impact energy-absorbing
The energy-absorbing effect of protection unit 1.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. impacting energy-absorbing protective device characterized by comprising
Energy-absorbing cylinder, for high tough antifatigue alloy material piece, the first end of the energy-absorbing cylinder has a nozzle, and the of the energy-absorbing cylinder
Two end seals are closed；
Mounting flange is located in the first end of the energy-absorbing cylinder, for connecting by fender；
Guide pipe, the second end of the guide pipe protrude into intracavitary in the energy-absorbing cylinder from the tube port position of the energy-absorbing cylinder；And
Crashworthy plate is fastenedly connected with the first end of the guide pipe.
2. impact energy-absorbing protective device as described in claim 1, which is characterized in that offer the first limit on the energy-absorbing cylinder
Hole offers the second limit hole, the impact energy-absorbing protective device on the guide pipe further include:
Shear pin, the shear pin are plugged in first limit hole and second limit hole.
3. as claimed in claim 2 impact energy-absorbing protective device, which is characterized in that the end face of the second end of the guide pipe with
The inner surface of the second end of the energy-absorbing cylinder contacts.
4. impact energy-absorbing protective device as claimed in claim 2, which is characterized in that further include:
Power-absorbing is placed in the interior intracavitary of the energy-absorbing cylinder, the end face of the second end of the power-absorbing and the energy-absorbing cylinder
Second end inner surface contact；And
Partition is located between the second end of the guide pipe and the first end of the power-absorbing.
5. impact energy-absorbing protective device as claimed in claim 4, which is characterized in that the partition is fixedly arranged on the guide pipe
In inner hole, the first end of the power-absorbing is protruded into the inner hole of the guide pipe and is supported with the partition.
6. impact energy-absorbing protective device as claimed in claim 4, which is characterized in that the power-absorbing is cellular solid
Part.
7. impact energy-absorbing protective device as claimed in claim 2, which is characterized in that further include:
Elastic buffer is located between the second end of the guide pipe and the second end of the energy-absorbing cylinder.
8. impact energy-absorbing protective device as claimed in claim 7, which is characterized in that the elastic buffer includes:
The first end of cylinder body, the cylinder body has opening, and the second end of the cylinder body and the second end of the guide pipe are supported；
End cap is covered in the opening；
It supports through the end cap and with the second end of the energy-absorbing cylinder one end of piston rod, the bar portion of the piston rod；And
Elastic cement is filled in the interior intracavitary of the cylinder body.
9. impact energy-absorbing protective device as claimed in claim 7, which is characterized in that the elastic buffer includes:
The first end of cylinder body, the cylinder body has opening, and the second end of the cylinder body and the second end of the guide pipe are supported；
End cap is covered in the opening；
It supports through the end cap and with the second end of the energy-absorbing cylinder one end of piston rod, the bar portion of the piston rod；And
Spring is located between the second end of the cylinder body and the piston portion of the piston rod.
10. impact energy-absorbing protective device as described in any one of claim 1 to 9, which is characterized in that the surface of the Crashworthy plate
On be convexly equipped with anti-creep tooth or be covered with anti-slip layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661898.XA CN110388405A (en) | 2019-07-22 | 2019-07-22 | Impact energy-absorbing protective device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661898.XA CN110388405A (en) | 2019-07-22 | 2019-07-22 | Impact energy-absorbing protective device |
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| CN110388405A true CN110388405A (en) | 2019-10-29 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910661898.XA Pending CN110388405A (en) | 2019-07-22 | 2019-07-22 | Impact energy-absorbing protective device |
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| CN113789482A (en) * | 2021-09-01 | 2021-12-14 | 安徽金亿新材料股份有限公司 | High-energy-absorption Chang' e steel, valve seat ring and preparation method thereof |
| CN113915289A (en) * | 2021-09-23 | 2022-01-11 | 北京航空航天大学 | Detachable chain type stretching energy absorption device |
| CN114962410A (en) * | 2022-03-23 | 2022-08-30 | 哈尔滨工程大学 | Slotting energy-absorbing pin capable of adjusting buckling deformation and preparation method thereof |
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| CN114962410B (en) * | 2022-03-23 | 2024-04-30 | 哈尔滨工程大学 | Slotted energy-absorbing pin capable of adjusting buckling deformation and preparation method thereof |
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