CN106347404B - A kind of collision energy-absorbing device used for rail vehicle - Google PatentsA kind of collision energy-absorbing device used for rail vehicle Download PDF
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- CN106347404B CN106347404B CN201610860265.8A CN201610860265A CN106347404B CN 106347404 B CN106347404 B CN 106347404B CN 201610860265 A CN201610860265 A CN 201610860265A CN 106347404 B CN106347404 B CN 106347404B
- Prior art keywords
- absorbing tube
- energy absorbing
- stop collar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- 230000037250 Clearance Effects 0.000 claims abstract description 6
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- 235000009854 Cucurbita moschata Nutrition 0.000 abstract description 5
- 240000001980 Cucurbita pepo Species 0.000 abstract description 5
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- 235000020354 squash Nutrition 0.000 abstract description 5
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- 229910052782 aluminium Inorganic materials 0.000 description 2
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- 241000145637 Lepturus Species 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 241000283898 Ovis Species 0.000 description 1
- 240000008259 Paeonia officinalis Species 0.000 description 1
- 235000006484 Paeonia officinalis Nutrition 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000034994 death Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/04—Bumpers or like collision guards
The present invention provides a kind of collision energy-absorbing device used for rail vehicle, including baffle, energy absorbing tube, base lid and pedestal, spring and telescopic drive structure, stretched out in energy absorbing tube outside car body and smaller 2~40mm than the largest outside diameter value of energy absorbing tube bigger diameter end after each piece of spacing inner room radial compaction or radial clearance minimum at the via diameter minimum of gained so that the overall extrusion to movement at the via and from via of the energy absorbing tube is to absorb collision energy after rail vehicle collision.The squash type collision energy-absorbing device used for rail vehicle provided in the present invention has more preferable strength characteristics and collision performance.After train collision danger signal is recognized, the energy absorbing tube in the device is actively stretched out to absorb collision energy, and the size of energy absorbing tube is no longer limited by the position of structure of couplers.And can drive the direct key control of energy absorbing tube for the false triggering situation of endergonic structure, the telescopic drive structure and easily be recovered to vehicle body, ensure normally connect extension by hitch between vehicle.
The present invention relates to vehicle collision field, and in particular to a kind of collision energy-absorbing device used for rail vehicle.
Rail vehicle collision accident is to cause one of main reason of passenger's heavy casualties, therefore, how to improve track The safety of vehicle operation, reduces the injures and deaths of driver and conductor and passenger in accident to the greatest extent, becomes people's question of common concern.It is special It is not present, with developing rapidly for the high speed railway cars such as high ferro, the security of vehicle operation is just more prominent, collision safety Problem becomes the emphasis that high speed railway car is set as the important component in Car design.
Country's rail vehicle at present, causes considerable damage, together to reduce when vehicle occurs and mutually hits for body construction When in order to reduce casualties, the front end of car body is usually provided with the safety devices such as anticreeper.When vehicle touches When hitting accident, by being mutually twisted for a pair of anti-climbing tooth, make to carry out frontal impact between car body, avoid the occurrence of and climb car and topple Serious consequence.Meanwhile by being arranged on the plastic deformation of an energy absorption device for Chinese herbaceous peony end and car body, absorb huge impact energy Amount, so as to ensure the safety of driver and conductor and passenger to greatest extent and ensure the complete of vehicle body structure.
Research at present on energy absorption device used for rail vehicle is more popular.Such as 201420698281.8 disclosure of Chinese patent A kind of compression multistage energy absorber for rail traffic vehicles.The utility model energy-absorbing cylinder material is two-staged step hollow cylinder Body, two ladder end face are equipped with ring-type wedge groove, and first circle body is equipped with step, second is equipped with two level ladder Cylinder circle body, the front end face of first circle body is equipped with coordinates the first ring-type wedged plate with ring-type wedge groove, second circle body Front end face is equipped with coordinates the second ring-type wedged plate with ring-type wedge groove；First mounting base, the second mounting base are provided with centre bore, it Coordinate respectively with the two level step diameter of energy-absorbing cylinder material；First mounting base front end face consolidates the first guide cylinder, the first mounting base Rear end face and the second mounting base front end face between be equipped with the second guide cylinder.But the more difficult control of energy absorber cushion stroke, it has It is limited to imitate stroke, it is more difficult to reach expected buffering effect.
Patent of invention CN201310082195 discloses a kind of uniform new energy absorption device of buffering, it is desirable to provide Yi Zhongjie Structure can simply, when traffic accident occurs when impact carry out energy the device of uniform pickup, the suction stability and high efficiency Energy device is formed by tearing pipe (1), guiding friction pipe (2) and punch (3) in advance.This device energy absorption relies primarily on punch (3) bulging caused by pre- tear pipe (1) and subsequent pipe tear are squeezed into.Compared with traditional energy-absorbing mode, pipe Tear curling destruction compares broken, axial flexing or upset more effectively on energy-absorbing effect, while is also equipped with effective travel length and punching Hit the characteristics of power is steady.
A kind of telescopic rail energy-absorbing device for vehicle collision is provided in our previous application CN201510666711.7, Be made of the Liang Tao mechanisms of independent role, be separately mounted to the both sides of vehicle end, often cover by anti-climbing tooth, energy-absorbing pipe, draw ring, Cutter, cutter fixed block, mounting base, the base of tool, guide cylinder, double-acting type cylinder, base, bolt, torque spring, pin, positioning Groove, double-acting type solenoid valve, controller, air accumulator composition；For energy absorption device in off working state, double-acting type cylinder is pulling force State, pulling the contracting of energy-absorbing pipe, cutter is pressed on the outer wall of energy-absorbing pipe, double before train collides inside guide cylinder Action type cylinder promotes energy-absorbing pipe outwards to eject under pressure-air effect, and cutter is pressed in energy-absorbing circle under spring force On the locating slot of pipe, when energy-absorbing pipe is subject to external force to shrink back into guide cylinder, Tool in Cutting endergonic structure absorbs energy.If inhale If can not be subject to effect of impact after pipe stretching, can be made by pulling cutter or jacking up cutter head using the cylinder under cutter Energy-absorbing pipe and cutter separate, inside double-acting type cylinder pulling energy-absorbing pipe to guide cylinder.
But from above-mentioned file as it can be seen that country's anti-climbing energy-absorbing device of rail vehicles generally uses the Plastic Compression of thin-wall construction at present Degeneration shape or cutting deformation carry out Dissipative Collisions energy, the structure have energy-absorbing than it is small, effective travel is short, deformation condition shadow loaded Ring the features such as big.In addition, under different impact conditions, the energy absorption characteristics of the structure show very big difference, are easy to cause Uncontrollable damage of the vehicle in collision process.
Utility model patent 201420738264.2 discloses a kind of squash type energy absorption device, belongs to rail vehicle and passively pacifies Full technical field.It, which can efficiently solve resistance when train is collided, the problem of larger fluctuation.The squash type energy-absorbing Device is made of installing plate, connecting flange and energy absorbing tube.Circular mounting hole is provided with the installing plate, connecting flange insertion is circular Mounting hole is simultaneously fixed by welding on installing plate.The connecting flange has diameter bore, and energy absorbing tube openend passes through interference Fit through connecting flange.Bolt hole is provided with the installing plate, energy absorption device is connected on car body by bolt.It is main to use Energy absorption when train head is collided.The patent content solves the energy-absorbing ratio of existing energy absorbing tube to a certain extent It is small, effective travel is short, deformation condition loaded influences the problems such as big, but the extrusion structure of the energy absorbing tube need further to change Into.In addition, the patent provides a kind of completely passive anti-collision structure, and active anti-collision structure has compared with passive anti-collision structure Be conducive to the significant advantage such as setting of energy absorbing tube in the confined space.Therefore, there is one kind to be developed in this area in strength characteristics With the squash type energy absorption device further improved of collision performance etc..
The content of the invention
Therefore, the present invention provides a kind of collision energy-absorbing device used for rail vehicle, including is arranged at length over ends of body direction front end Or the baffle of rear end, the energy absorbing tube being connected on baffle, the base lid that is fixedly connected with the vehicle body and pedestal, for providing elastic force Spring and control energy absorbing tube stretch out the telescopic drive structure outside car body in time, and the internal diameter of the energy absorbing tube is protected everywhere axially Hold the round platform knot that the consistent and outside diameter of its outside diameter for including being connected with baffle is larger bigger diameter end and remote baffle progressively diminishes Structure, the pedestal include the inner via hole being axially disposed within length over ends of body direction, and the inner via hole is included axially closer to baffle Big nose end and away from baffle small bore end；Energy absorbing tube is arranged in the inner via hole of pedestal and the inner via hole of base lid, and footpath More than two pieces stop collars are additionally provided between pedestal and energy absorbing tube upwards, the spring is used to aid in the stop collar in pedestal Inner via hole in movement；Gained outside energy absorbing tube stretching car body and after each piece of spacing inner room radial compaction or radial clearance minimum Via diameter minimum at it is smaller 2~40mm than the largest outside diameter value of energy absorbing tube bigger diameter end so that rail vehicle collision after the suction Energy pipe entirety to movement at the via and is extruded to absorb collision energy from via.
In a kind of specific embodiment, anti-climbing tooth is connected on the baffle, with prevent collision when one train lifted Rise and climb to another train.
In a kind of specific embodiment, the quantity of the spring is consistent with stop collar quantity, and spring each parallel to Energy absorbing tube is set, and the both ends of spring are supported respectively to be located on stop collar and base lid.
In a kind of specific embodiment, the radial outside of polylith stop collar (5) is provided with annular recess (51), and fixed Position ring (6) is arranged in the annular recess (51) so that polylith stop collar (5) is synchronized with the movement in the axial direction.
In a kind of specific embodiment, axial step (73) is provided with the inner via hole of the pedestal (7), is accordingly existed Axial stop (52) is provided with every piece of stop collar (5) so that the stop collar (5) is fastened in pedestal (7) in the axial direction.
In a kind of specific embodiment, than the largest outside diameter of energy absorbing tube bigger diameter end (22) at the via diameter minimum It is worth small 6~20mm.
In a kind of specific embodiment, energy absorbing tube (2) overall length is 100~1500mm, bigger diameter end (22) outside diameter For 30~300mm, and bigger diameter end (22) wall thickness is 2~30mm.
In a kind of specific embodiment, energy absorbing tube (2) overall length is 500~1000mm, and bigger diameter end outside diameter is 100 ~200mm, and bigger diameter end wall thickness is 10~20mm.
In a kind of specific embodiment, the energy absorbing tube (2) is metal tube, and the pedestal (3) is big for Material Strength In the metal base of energy absorbing tube metal；The telescopic drive structure is cylinder or hydraulic cylinder comprising piston rod, or described is stretched Contracting driving structure is motor driving apparatus.
In a kind of specific embodiment, before collision, the energy absorbing tube (2) and stop collar (5) and base lid (3) in axial direction Form interference fit, transition cooperation or the clearance fit of one or more, and energy absorbing tube and stop collar (5) and base lid (3) are matched somebody with somebody Conjunction length is more than the 1/10 of energy absorbing tube (2) pipe range.
In a kind of specific embodiment, the quantity of the stop collar (5) is 3~6 pieces, and polylith stop collar (5) is equal It is even to be distributed in energy absorbing tube (2) radial outside.
In another specific embodiment, the radial outside of polylith stop collar (5) is provided with annular recess (51), And locating ring (6) is arranged in the annular recess (51) so that polylith stop collar (5) is synchronized with the movement in the axial direction；The pedestal (7) the two or more pin axis jacks (74) axially vertical with energy absorbing tube are additionally provided with, are set in the pin axis jacks (74) There is one end of axis pin (12) and axis pin (12) to support to be located in annular recess (51) or on locating ring (6), the other end of axis pin (12) It is fixedly connected with one end of connecting rod (11), and the other end of connecting rod (11) is fixed at the mounting base of telescopic drive structure On；Hole of the pin axis jacks (74) in energy absorbing tube axial direction is wider than size of the axis pin in energy absorbing tube axial direction so that Connecting rod (11) and axis pin (12) can drive polylith stop collar (5) to be synchronized with the movement in the axial direction.
The squash type collision energy-absorbing device used for rail vehicle provided in the present invention has more preferable strength characteristics and collision property Energy.After train collision danger signal is recognized, the energy absorbing tube in the device is actively stretched out to absorb collision energy, energy absorbing tube Size is no longer limited by the position of structure of couplers.And it can be driven for the false triggering situation of endergonic structure, the telescopic drive structure Move the direct key control of energy absorbing tube and be easily recovered to vehicle body, ensure normally connect extension by hitch between vehicle.
Brief description of the drawings
Fig. 1 be energy absorption device when train works normally (energy absorbing tube contraction) dimensional structure diagram,
Fig. 2 is the front view of structure shown in Fig. 1,
Fig. 3 is the Section A-A sectional view of structure shown in Fig. 2,
Fig. 4 is the section B-B sectional view of structure shown in Fig. 2,
Fig. 5 is dimensional structure diagram of the energy absorption device before collision occurs (when energy absorbing tube stretches out),
Fig. 6 is the front view of structure shown in Fig. 5,
Fig. 7 is the Section A-A sectional view of structure shown in Fig. 6,
Fig. 8 is the section B-B sectional view of structure shown in Fig. 6,
Fig. 9 is the dimensional structure diagram of stop collar.
Figure 10 be second energy absorption device of the invention when train works normally (energy absorbing tube contraction) dimensional structure diagram,
Figure 11 is the axial cross section sectional view of structure shown in Figure 10,
Figure 12 is the radial section sectional view of structure shown in Figure 10,
Figure 13 is dimensional structure diagram of the second energy absorption device of the invention before collision occurs (when energy absorbing tube stretches out),
Figure 14 is the dimensional structure diagram of stop collar in structure shown in Figure 10.
In figure：1st, baffle, 2, energy absorbing tube, 3, base lid, 4, spring, 5, stop collar, 6, locating ring, 7, pedestal, 8, piston rod, 9th, cylinder block, 10, cylinder block, 11, connecting rod, 12, axis pin；
21st, frustum cone structure, 22, bigger diameter end, 51, annular recess, 52, axial stop, 53, radial blind holes, 54, via, 71, Small bore end, 72, big nose end, 73, axial step, 74, pin axis jacks.
The aluminium alloy (low-intensity aluminium alloy) or mild steel of combined use some strength are as energy absorbing tube, the energy-absorbing of the structure Pipe deforms extrusion after may be such that energy absorbing tube collision at via 54, so as to absorb the energy that collision produces to greatest extent.Ability Field technique personnel understand ground, and the interference fit, the deviation that transition coordinates or interval coordinates are 0.01mm grades, and are adopted in the present invention The extrusion (extruding) deformed with energy-absorbing pipe outside diameter is moved to realize collision energy-absorbing, its energy absorption and the friction produced by interference fit And the energy absorption produced is huge compared to difference, therefore, collision energy-absorbing process can be achieved using the device in the present invention, without In addition other any type of endergonic structures are added.
Preferably, 2 overall length of energy absorbing tube is 500~1000mm, and bigger diameter end outside diameter is 100~200mm, and major diameter end wall Thickness is 10~20mm.In the present invention, energy absorbing tube integrally keep more than certain thickness (wall thickness of such as bigger diameter end is more than 10mm, The wall thickness of miner diameter end is more than 5mm at the same time) it can make it that energy absorbing tube is not flexible after colliding, and energy absorption is big.Suction after collision Energy pipe stretches out pedestal at via 54, and energy absorbing tube is reduced into pipe of the outside diameter compared with smaller before collision after an impact, its shape is substantially It is still the straight pipe of rule.
In a kind of specific embodiment, the energy absorbing tube 2 is metal tube, and the pedestal 3 is more than for Material Strength to be inhaled The metal base of the effective metal of energy.In a kind of specific embodiment, the energy absorbing tube is iron pipe or aluminum pipe, is specially intensity With the less pipe fitting of hardness, and the pedestal is aluminium or stainless steel, is specially that intensity and hardness are much larger than material used in energy absorbing tube The metalwork of material.
The energy absorption device structure of the embodiment of the present invention 1 is in Fig. 1~9, energy absorbing tube when wherein Fig. 1~4 are train normal operation The state being contracted in car body, energy absorbing tube has stretched out the structure of the outer energy absorption device of car body before Fig. 5~8 occur for collision accident Figure.After collision accident occurs, the energy absorbing tube can be from the inside via 54 that four pieces of stop collars 5 as shown in Figure 7 are collectively forming Energy absorbing tube is extruded from right to left in extrusion, specifically Fig. 7, is collided energy-absorbing bore after extrusion and is diminished and energy-absorbing.
Specifically, as shown in figures 1-4, in the case of train normal operation, pulling force of the energy absorbing tube 2 in cylinder piston rod 8 Under effect, vehicle body is contracted in, four pieces of stop collars are tightly pressed against 7 inner surface of pedestal and energy-absorbing under the pressure effect of spring Between the outer surface of pipe 2, the radial outside at the axial middle part of four pieces of stop collars is provided with annular recess 51, is equipped with annular recess 51 Locating ring 6, ensures that four pieces of stop collars can be synchronized with the movement in the axial direction.As shown in figures 5-8, before train crashes, Such as under the sensing of displacement sensor (prediction will have accident), energy absorbing tube 2 under the thrust of cylinder piston rod 8, Reach outside car body, since energy absorbing tube axially adjacent to one end of car body is frustum cone structure 21, treat the frustum cone structure 21 of energy absorbing tube With pedestal one end when axial direction is concordant, four pieces of stop collars 5 move under the resilient force of spring 4 to the small bore end 71 of pedestal, It is tightly pressed against between base inner surface and the outer surface of energy absorbing tube, locating ring ensures four pieces of stop collar synchronizing movings.
As shown in Figure 4 and Figure 8, with reference to Fig. 3 and Fig. 7, the stop collar in the device be also diametrically can activity, by Four pieces of compositions, each piece of stop collar outer surface coordinate with base inner surface, along pedestal under the elastic stretch power effect of spring Inner surface is slided to small bore end, and locating ring ensures that four pieces of stop collars can slide at the same time, and spring begins before energy absorbing tube stretches out car body It is in compressive state eventually.As shown in figure 8, after energy absorbing tube stretching, stop collar coordinates with base inner surface under the action of the spring, It is very close to each other between four pieces of stop collars, it is fitted close with energy absorbing tube.
Figure 10~14 are the energy absorption device structure of the embodiment of the present invention 2, are inhaled when wherein Figure 10~12 are train normal operation Energy pipe is contracted in the state in car body, and Figure 13 is the structure that energy absorbing tube has stretched out the outer energy absorption device of car body before collision accident occurs Figure.After collision accident occurs, the energy absorbing tube can be from the inside via 54 that four pieces of stop collars 5 are collectively forming as shown in fig. 13 that Energy absorbing tube is extruded from right to left in extrusion, specifically Figure 13, is collided energy-absorbing bore after extrusion and is reduced and energy-absorbing.
Specifically, Figure 10 show 5 automatically retractable formula energy absorption device structure diagram of stop collar, locating ring 6 and activity Axis pin 12 connects, and axis pin compresses locating ring, and axis pin 12 is installed in connecting rod 11, and 11 other end of connecting rod is connected with cylinder block, Cylinder block can thin tail sheep activity, connected two-by-two by spring radially between four pieces of stop collars.As shown in figure 11, inhaled before collision Can pipe be contracted in pedestal, stop collar distending under the action of the spring, as shown in figure 12, between each piece of stop collar 5 after distending Form certain gap.As shown in figure 13, energy absorbing tube is stretched out outside car body under the action of cylinder, and cylinder block is moved rearwards, and is passed through Connecting rod 11 pulls axis pin 12 and locating ring 6 to move axially, and under the action of locating ring movement, four pieces of stop collars 5 are synchronous to base The small bore end 71 of seat 7 moves, and after energy absorbing tube stretching, stop collar coordinates under the action of locating ring with pedestal inner via hole, four pieces There is no gap between stop collar, it is fitted close with energy absorbing tube.It is (every under tension force of spring in scheme shown in Figure 10~13 Two pieces of stop collars are provided with two springs between radial clearance, two spring shafts upwards one in front and one in back, such as the four of Figure 11 and Figure 12 Shown in a circle, the both ends of every spring are arranged in the radial blind holes 53 of adjacent two pieces of stop collars) four pieces of stop collars are in footpath Strut upwards in gap-like, whole stop collar does not lock energy absorbing tube at this time.Under the action of the powerful active force of cylinder, each bullet Jam-packed and stop collar are respectively positioned on the small bore end in pedestal (leftmost side of pedestal in Figure 11 and 13) between spring, and stop collar is by energy-absorbing at this time Pipe locks and is conducive to extrude at the diameter of bore minimum of energy absorbing tube gained after each piece of spacing inner room radial compaction out of stop collar.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
1. a kind of collision energy-absorbing device used for rail vehicle, including be arranged at the baffle (1) of length over ends of body direction front end or rear end, connect The energy absorbing tube (2) that is connected on baffle (1), the base lid (3) being fixedly connected with the vehicle body and pedestal (7), the bullet for providing elastic force Spring (4) and control energy absorbing tube (2) stretch out the telescopic drive structure outside car body in time, and the internal diameter of the energy absorbing tube (2) is in axial direction It is consistent everywhere and it includes the larger bigger diameter end (22) of the outside diameter that is connected with baffle (1) and the outside diameter away from baffle (1) The frustum cone structure (21) progressively to diminish, the pedestal (7) includes the inner via hole being axially disposed within length over ends of body direction, described interior Through hole includes the big nose end (72) axially closer to baffle (1) and the small bore end (71) away from baffle (1)；Energy absorbing tube (2) is set Put in the inner via hole of pedestal (7) and the inner via hole of base lid (3), and radially also set between pedestal (7) and energy absorbing tube (2) More than two pieces stop collars (5) are equipped with, the spring is used to aid in movement of the stop collar (5) in the inner via hole of pedestal (7)； Via (54) diameter of gained outside energy absorbing tube (2) stretching car body and after each piece of spacing inner room radial compaction or radial clearance minimum Minimum place is smaller 2~40mm than the largest outside diameter value of energy absorbing tube bigger diameter end (22) so that the energy absorbing tube (2) after rail vehicle collision Entirety to movement at the via and is extruded to absorb collision energy from via；
The radial outside of polylith stop collar (5) is provided with annular recess (51), and locating ring (6) is arranged on the annular recess (51) so that polylith stop collar (5) is synchronized with the movement in the axial direction in.
2. collision energy-absorbing device according to claim 1, it is characterised in that the quantity of the spring (4) and stop collar (5) number Amount is consistent, and spring (4) is set each parallel to energy absorbing tube (2), and the both ends of spring are supported respectively is located at stop collar (5) and base lid (3) On.
3. collision energy-absorbing device according to claim 1, it is characterised in that than energy absorbing tube major diameter at the via diameter minimum Hold the small 6~20mm of largest outside diameter value of (22).
4. the collision energy-absorbing device according to any one in claims 1 to 3, it is characterised in that energy absorbing tube (2) overall length For 100~1500mm, bigger diameter end (22) outside diameter is 30~300mm, and bigger diameter end (22) wall thickness is 2~30mm.
5. collision energy-absorbing device according to claim 4, it is characterised in that energy absorbing tube (2) overall length for 500~ 1000mm, bigger diameter end outside diameter is 100~200mm, and bigger diameter end wall thickness is 10~20mm.
6. the collision energy-absorbing device according to any one in claims 1 to 3, it is characterised in that the energy absorbing tube (2) is gold Belong to pipe, the pedestal (7) is more than the metal base of energy absorbing tube metal for Material Strength；The telescopic drive structure is to include work The cylinder or hydraulic cylinder of stopper rod, or the telescopic drive structure are motor driving apparatus.
7. the collision energy-absorbing device according to any one in claims 1 to 3, it is characterised in that described in axial direction before collision Energy absorbing tube (2) forms the interference fit of one or more, transition cooperation or clearance fit with stop collar (5) and base lid (3), and inhales It is more than the 1/10 of energy absorbing tube (2) pipe range that can manage with the length of fit of stop collar (5) and base lid (3).
8. the collision energy-absorbing device according to any one in claims 1 to 3, it is characterised in that the number of the stop collar (5) Measure as 3~6 pieces, and polylith stop collar (5) is evenly distributed on energy absorbing tube (2) radial outside.
9. the collision energy-absorbing device according to any one in claims 1 to 3, it is characterised in that the interior of the pedestal (7) leads to Axial step (73) is provided with hole, axial stop (52) is accordingly provided with every piece of stop collar (5) so that the stop collar (5) it is fastened in the axial direction in pedestal (7).
Priority Applications (1)
|Application Number||Priority Date||Filing Date||Title|
|CN201610860265.8A CN106347404B (en)||2016-09-28||2016-09-28||A kind of collision energy-absorbing device used for rail vehicle|
Applications Claiming Priority (1)
|Application Number||Priority Date||Filing Date||Title|
|CN201610860265.8A CN106347404B (en)||2016-09-28||2016-09-28||A kind of collision energy-absorbing device used for rail vehicle|
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|CN106347404A CN106347404A (en)||2017-01-25|
|CN106347404B true CN106347404B (en)||2018-04-13|
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Families Citing this family (2)
|Publication number||Priority date||Publication date||Assignee||Title|
|CN107336721B (en) *||2017-07-13||2018-12-14||中南大学||A kind of energy absorption device based on necking down plastic deformation|
|CN109263678B (en) *||2018-10-12||2019-10-29||大连理工大学||A kind of novel rail vehicle energy absorption device|
Family Cites Families (9)
|Publication number||Priority date||Publication date||Assignee||Title|
|DE102009044966A1 (en) *||2009-09-24||2011-03-31||Robert Bosch Gmbh||Apparatus and method for adaptive degradation of crash energy|
|DE102010001990A1 (en) *||2010-02-16||2011-08-18||Robert Bosch GmbH, 70469||Actuator as well as apparatus and method for the adaptive degradation of crash energy|
|DE102010002904A1 (en) *||2010-03-16||2011-09-22||Robert Bosch Gmbh||Actuator of deformation element, has piezoelectric element that is used as manipulated variable transistor|
|WO2012007261A1 (en) *||2010-07-16||2012-01-19||Robert Bosch Gmbh||Impact energy absorption structure of variable rigidity and method for adjusting the rigidity of an impact energy absorption structure|
|DE102011004294A1 (en) *||2011-02-17||2012-08-23||Robert Bosch Gmbh||Apparatus and method for adjusting a stiffness of an adaptive energy absorption structure|
|DE102011089432A1 (en) *||2011-12-21||2013-06-27||Robert Bosch Gmbh||Adjustable stiffness device for absorbing impact energy|
|DE102012218722A1 (en) *||2012-10-15||2014-04-17||Robert Bosch Gmbh||Delay device for seat of vehicle, has deformation unit that is attached to the deformation element to-be-deformed when the deformation element moves in main extending direction of seat rail|
|CN105292164B (en) *||2015-10-16||2017-11-14||中南大学||Telescopic rail energy-absorbing device for vehicle collision|
|CN206307043U (en) *||2016-09-28||2017-07-07||中南大学||A kind of collision energy-absorbing device used for rail vehicle|
- 2016-09-28 CN CN201610860265.8A patent/CN106347404B/en active Active
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