CN103625502B - A kind of rail vehicle front end energy absorption device - Google Patents
A kind of rail vehicle front end energy absorption device Download PDFInfo
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- CN103625502B CN103625502B CN201310488975.9A CN201310488975A CN103625502B CN 103625502 B CN103625502 B CN 103625502B CN 201310488975 A CN201310488975 A CN 201310488975A CN 103625502 B CN103625502 B CN 103625502B
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Abstract
The present invention relates to a kind of rail vehicle front end energy absorption device, comprise Anti-creeping energy absorbing structural, hitch endergonic structure, main endergonic structure and guide frame, described hitch endergonic structure is fixedly connected with described main endergonic structure by coupler seat, described coupler seat is fixedly connected on the leading section of described main endergonic structure, described main endergonic structure and described guide frame are fixedly connected on the rigid wall of car body front end, described guide frame is slidably connected at described main endergonic structure both sides and described main endergonic structure and described hitch endergonic structure, described Anti-creeping energy absorbing structural is fixedly connected on car body front end underframe. the present invention, by endergonic structure that main endergonic structure, hitch endergonic structure, Anti-creeping energy absorbing structural are combined into one, has increased the energy absorption of car body front end energy absorption device greatly, makes the distortion energy-absorbing that energy absorption device can stepped ordering.
Description
Technical field
The present invention relates to a kind of rail vehicle front end energy absorption device, particularly one can improve energy absorption be again applicable toThe front end energy absorption device of high-fineness ratio, sharp shuttle capitiform rail vehicle.
Background technology
Along with improving constantly of the rail vehicle speed of service, the suffered aerodynamic drag of rail vehicle also increases greatly.For reducing the aerodynamic drag in running, improve aerodynamic performance, bullet train adopts streamlined, greatly enhancesCarefully than capitiform, but its headstock inner space of the train of this kind of capitiform is very little, need to install and open at headstock front end in additionThe equipment such as locking mechanism, the installation of collision energy-absorbing structure is just more difficult.
On bullet train, most of energy absorption devices only adopt energy-absorbing hitch energy-absorbing at present, adopt anticreeper anti-creep,But this mode is only applicable to wide flat, the train that slenderness ratio is little of head dummy. For the train of high-fineness ratio point fusiformis head dummy,The installation of hitch energy absorption device and anticreeper is very difficult.
In the patent documentation that is 201320101269.X at Chinese application number, disclose a kind of with anti-climbing energy-absorbing deviceTrain front end composition, by arranging coupler pocket and at the lateral surface of coupler pocket, anti-creep energy-absorbing being set in the end of draw beamDevice, anti-climbing energy-absorbing device is fixedly connected with the lateral surface of coupler pocket by mount pad, and its collision energy-absorbing process is carHook buffering energy-absorbing and anti-climbing energy-absorbing device distortion energy-absorbing. Its overall structure is flat structure, by hitch and anti-creep energy-absorbingStructure is by the coupler pocket structure that links into an integrated entity, but process of its distortion energy-absorbing is only hitch buffering energy-absorbing and anti-creepCollapse energy-absorption, energy absorption is smaller, and coupler pocket rigidity is very large, not yielding, for bullet train, its suctionEnergy is easy to arrive and requires.
Summary of the invention
Main purpose of the present invention is to address the above problem and is not enough, provides can improve energy absorption and can be again driver and stayGo out enough escape spaces, be applicable to a kind of rail vehicle front end energy absorption device of high-fineness ratio, sharp shuttle capitiform rail vehicle.
For achieving the above object, technical scheme of the present invention is:
A kind of rail vehicle front end energy absorption device, comprises Anti-creeping energy absorbing structural, hitch endergonic structure, and described anti-creep is inhaledCan structure be two and be fixedly connected on respectively on car body front end underframe, between described Anti-creeping energy absorbing structural, also arrangeHave main endergonic structure and guide frame, described hitch endergonic structure is even fixing by coupler seat and described main endergonic structureConnect, described coupler seat is fixedly connected on the leading section of described main endergonic structure, described main endergonic structure and described guidingStructure is fixedly connected on the rigid wall of car body front end, described guide frame described main endergonic structure both sides with described inMain endergonic structure and described hitch endergonic structure are slidably connected.
Further, described main endergonic structure comprises energy-absorbing beam, front end-plate, end plate, supporting clapboard and backstop beam,Hitch is set on the centre position of described front end-plate, end plate, supporting clapboard by mouth, two of described energy-absorbing beamEnd is fixedly connected with end plate with described front end-plate, and described end plate is fixedly connected with the rigid wall of described car body front end,Along described energy-absorbing beam, multiple described supporting clapboards are longitudinally vertically set, are fixedly connected with institute in the surrounding of described supporting clapboardState backstop beam.
Further, the profile of described supporting clapboard is rectangle, on described supporting clapboard, arranges and described energy-absorbing beamThe suitable through hole of section profile, described energy-absorbing beam stretches into described through hole and is fixedly connected with described supporting clapboard.
Further, described energy-absorbing beam adopts five pass materials, is made up of, for squeezing four end cornues and middle connecting plateMolded overall structure section bar.
Further, corresponding with four end cornues of each described energy-absorbing beam end on described front end-plate and end plateFour described the first through holes are opened respectively in position, the shape and size of each described the first through hole and described energy-absorbing beam-ends faceFour end holes, angle shape and size suitable.
Further, the two ends of the each connecting plate between four end cornues of each described energy-absorbing beam concave respectivelyFall into and form the first induction groove, on each described connecting plate, respectively arrange one the with respect to described supporting clapboard both sidesTwo induction grooves.
Further, described backstop beam is connected to form side by side by three box-girders, wherein both sides box-girder and middle box-shapedBetween beam, be bolted, described intermediate box ellbeam is fixedly connected with described supporting clapboard.
Further, described backstop beam disconnects at four of described supporting clapboard end angle places, at gap by box-shapedConnection Block is fixedly connected with, and is fixedly connected with the first slide block on the side plate in the outside of described Connection Block.
Further, the truss structure of described guide frame in the middle of comprising and the C shape chute at two ends, described truss structure andDescribed C shape chute is fixedly connected with, and the opening surface of described C shape chute is to described main endergonic structure, described guide frame withDescribed main endergonic structure is slidably connected by described C shape chute and described the first slide block.
Further, the integrative-structure section bar that described guide frame is extrusion modling.
Further, described hitch endergonic structure comprises coupler seat and hitch, and described coupler seat is along cross-car settingRectangle structure, be respectively arranged with the second slide block in the both sides of described coupler seat, described coupler seat and described guidingBetween structure, be slidably connected by described the second slide block and described C shape chute.
Further, be fixedly connected with conquassation pipe in the centre position of described coupler seat, one end of described conquassation pipe with described inCoupler seat is fixedly connected with, and the other end of described conquassation pipe stretches in described main endergonic structure and is positioned at the institute of forefrontState supporting clapboard place.
In sum, a kind of rail vehicle front end energy absorption device provided by the invention, compared with prior art, hasFollowing advantage:
(1) by structure that main endergonic structure, hitch endergonic structure, Anti-creeping energy absorbing structural are combined into one, greatlyIncrease the energy absorption of car body front end energy absorption device, made the distortion energy-absorbing that energy absorption device can stepped ordering, simultaneously logicalCross main endergonic structure, hitch endergonic structure and Anti-creeping energy absorbing structural be all arranged on the position of car body front end underframe,Save the upper space of car body front end underframe, made the installing space of the equipment such as car body front end switching mechanism larger, sideThe installation of car body front end energy absorption device and other equipment of front end.
(2) the energy-absorbing beam of main endergonic structure adopts five pass materials, and stability and intensity are better, and energy absorption is larger,On energy-absorbing beam, be fixedly connected with supporting clapboard, difficult generation larger intentional deformation up or down, makes two energy-absorbingsBeam can compatible deformation, in supporting clapboard surrounding, backstop beam is set, and at the end corrects two energy-absorbings in the distortion of energy-absorbing beamThe distortion deviation of beam, is conducive to the deform in same pace of two energy-absorbing beams, in addition, induction groove is set on energy-absorbing beam favourableIn the balance of energy-absorbing beam in order, controllable deforming.
(3) guide frame play the guiding role to retreating of main endergonic structure and coupler seat, and guide frame adopts one simultaneouslyBody formed section bar, strength and stiffness are better, are conducive to stop the horizontal intentional deformation of energy-absorbing beam, in addition, guidingStructure plays the effect that connects main endergonic structure and car body front end underframe.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is main endergonic structure schematic diagram of the present invention;
Fig. 3 is the induction groove position view on energy-absorbing beam of the present invention;
Fig. 4 is the schematic diagram that supporting clapboard of the present invention is connected with guide frame;
Fig. 5 is the schematic diagram that coupler seat of the present invention is connected with guide frame;
Fig. 6 is the sectional schematic diagram of guide frame of the present invention;
Fig. 7 is energy-absorbing sequence of movement one of the present invention;
Fig. 8 is energy-absorbing sequence of movement two of the present invention;
Fig. 9 is energy-absorbing sequence of movement three of the present invention;
Figure 10 is energy-absorbing sequence of movement four of the present invention.
As shown in Figures 1 to 10, hitch endergonic structure 1, Anti-creeping energy absorbing structural 2, main endergonic structure 3, guide frame 4,Coupler seat 5, rigid wall 6, front end underframe 7, energy-absorbing beam 8, front end-plate 9, end plate 10, supporting clapboard 11, backstopBeam 12, through hole 13, end cornue 14, connecting plate 15, the first induction groove 16, the second induction groove 16a, hitch is by mouth17, hitch 18, both sides box beam 19, middle box beam 20, Connection Block 21, welding arm 22, welding arm 23, connectsConnect beam 24, the four stiffener 25, the first slide blocks 26, boss 26a, spring steel 26b, the first through hole 27, backing plate 28,Buffer 29, truss structure 30, C shape chute 31, triangular groove 32, the first defect groove 33, the second defect grooves 34,Energy absorbing tube 35, anti-climbing tooth 36, front end riser 37, mount pad 38, edge beam of underframe 39, stiffening plate 40, breach 41,Boss 42, stiffener 43, conquassation pipe 44, seat board 45, gusset 46, the first riser 47, the second risers 48, the threeStiffener 49, slide block mount pad 50, hitch passes through mouth 51, groove 52, gripper shoe 53, flange 54, boss 55,The second slide block 56.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 1, a kind of rail vehicle front end energy absorption device, comprises hitch endergonic structure 1, Anti-creeping energy absorbing structural 2,Main endergonic structure 3 and guide frame 4, wherein, hitch endergonic structure 1 is by coupler seat 5 and main fixing company of endergonic structure 3Connect, main endergonic structure 3 and guide frame 4 are fixedly connected on the rigid wall 6 of car body front end, and guide frame 4 is in main suctionThe both sides of energy structure 3 and main endergonic structure 3 and hitch endergonic structure 1 are slidably connected, and Anti-creeping energy absorbing structural 2 is fixed on carOn body front end underframe 7.
As shown in Figure 2, main endergonic structure 3 comprises energy-absorbing beam 8, front end-plate 9, end plate 10, supporting clapboard 11, stopsGear beam 12.
As shown in Figures 2 to 4, it is two that energy-absorbing beam 8 be arranged in parallel along car body longitudinal (being vehicle operating direction), inhalesThe two ends of energy beam 8 are fixedly connected with end plate 10 with front end-plate 9, between end plate 10 and car body front end rigid wall 6, pass throughBolt connects, and along energy-absorbing beam 8, several supporting clapboards 11 is longitudinally set, and in the present embodiment, according to car body front end size, establishesPut two supporting clapboards 11, the position being connected with energy-absorbing beam 8 on supporting clapboard 11 arranges through hole 13 accordingly, logicalHole 13 is suitable with the profiled outline of energy-absorbing beam 8, and energy-absorbing beam 8 is welded to connect through through hole 13 and supporting clapboard 11, thisConnected mode can make two energy-absorbing beam 8 deform in same pace. In the present embodiment, consider from cost of manufacture, by supporting clapboard11 are divided into upper and lower two parts, between upper and lower two parts, be welded to connect, if supporting clapboard 11 is structure as a whole, and systemWhile work, the extruding of section bar is required very harsh, economical not.
Energy-absorbing beam 8 preferably adopts five pass materials, five pass materials by four end cornues 14 and adjacent two end cornues 14 itBetween connecting plate 15 be connected to form, be the profile structure of monolithic extruded moulding. Selecting five pass materials is due to five passesMaterial is than independent pipe or square tube good stability, and difficult generation larger intentional deformation radially, in addition, once squeezesMolded section bar intensity is also relatively good, and when collision, and the deformation area of five pass materials is also larger, energy absorptionLarger, the space that five pass materials take is simultaneously relatively little.
The size of five pass materials mainly determines by end spaces before car body, the in the situation that before car body, end spaces allowing, and fiveThe overall dimensions of pass material should be large as far as possible, and the cross section conference of five pass materials is more conducive to stablize.
The value of the wall thickness of five pass materials will meet requirement of strength, wherein first will meet the normal instructions for use of hitch,The present invention meets the requirement of European standard EN12663 standard, under the prerequisite of instructions for use that meets hitch, also needs fullThe platform power requirement of foot many-body dynamics to main endergonic structure, in the present embodiment, the platform power of every five pass materials is1100KN。
As shown in Figure 3, several induction grooves are set on each energy-absorbing beam 8, induction groove shape can be Long Circle,Circular, semicircle, square, prismatic etc., induction groove be arranged on five pass materials four connecting plates 15 two ends andNear position supporting clapboard 11 is wherein the first induction groove 16 at the induction groove at connecting plate 15 two ends, by connecting plateThe formation that caves inward of 15 ends, near the induction grooves that are positioned at supporting clapboard 11 are the second induction groove 16a, by emulation meterCalculate, determined position, shape and the relative dimensions of induction groove, be enough to ensure the orderly controllable deforming of energy-absorbing beam 8.
The position of induction groove is not limited on the connecting plate 15 of five pass materials, also can be arranged on end cornue 14 this realityExecuting in example is because five pass materials are in the rigidity maximum at connecting plate 15 places by inducing groove to be arranged on connecting plate 15, arrangesInduction groove can reduce the rigidity of connecting plate 15, is conducive to the distortion of energy-absorbing beam 8, and concrete technical staff can be according to rowThe concrete condition calculative determination of car. It is attached that induction groove can make distortion reach supporting clapboard 11 near supporting clapboard 11 as far as possibleWhen near, energy-absorbing beam 8 is more yielding in the part of supporting clapboard 11 both sides, thus supporting clapboard 11 can than be easier toRetreat, make energy-absorbing beam 8 more easily carry out next step distortion, and supporting clapboard 11 can deformed damaged.
As shown in Figure 2, hitch is set by mouth at the centre position place of supporting clapboard 11, front end-plate 9 and end plate 1017, the passage that hitch 18 retreats when colliding, hitch can pass through with hitch 18 by shape and the size of mouth 17Be as the criterion, because the coupler body of hitch 18 is circular, therefore in the present embodiment, adopt circular hitch by mouth 17.
With respect to two supporting clapboards 11, two groups of backstop beams 12 are set, backstop beam 12 is arranged on the surrounding of supporting clapboard 11And be fixedly connected with supporting clapboard 11, backstop beam 12 is connected to form side by side by three box beam, comprises both sides box beam19 and intermediate box ellbeam 20, be bolted between the two. Middle box beam 20 in the middle of being arranged on and support everyThe monolithic extruded moulding of plate 11 or be welded together, backstop beam 12 disconnects at four end angle places, and at end, angle place passes throughThe Connection Block 21 of box-shaped connects, the position of the side plate in the outside of Connection Block 21 beyond the vertical backstop beam 12 of both sides,Avoid the contacts side surfaces of the vertical backstop beam in both sides 12 and guide frame 4, thereby prevent in the rear regression of main endergonic structure 3When shape, produce frictional force and hinder the performance of main endergonic structure 3 energy absorption ability.
As shown in Figure 4, be fixedly connected with the first slide block 26, Connection Block 21 and first at the side plate in the outside of Connection Block 21Between slide block 26, be fixedly connected with pad by bolt. The first slide block 26 is rectangular structure, at one epitaxial lateral overgrowthStretch out the boss 26a that runs through whole the first slide block 26 length, be bolted spring steel 26b at relative opposite side,The boss 26a of the first slide block 26 is fixedly connected with the side plate of Connection Block 21 by bolt towards main endergonic structure 3.
As shown in Figure 2, in supporting clapboard 11 surroundings, backstop beam 12 is set, and has adopted the structure of three box-girder combinations,Make the width of backstop beam 12 be greater than supporting clapboard 11, better balance is corrected the incoordination of energy-absorbing beam 8, andThe intensity of box beam in various section bars is also larger, therefore selects the backstop beam 12 of this kind of form can make to be out of shapeCheng Youxu, controlled. The selection of the section bar specification of backstop beam 12 should not wasted under the prerequisite of energy-absorbing stroke as far as possible, energyEnough suppress the asynchronous of two energy-absorbing beam 8 compressions, ensure that five pass materials below can controllable deforming, only simultaneouslyThe wall thickness of gear beam 12 meets backstop beam 12 when collision contacts between backstop beam 12 and itself does not deform.
Preferably with bolts between three box beam of backstop beam 12, the pad that can use by construction bolt with thisSheet is adjusted the depth of parallelism between supporting clapboard 11, is conducive to the process of steady-state deformation energy-absorbing. And each support everyThe welding capacity of plate 11 is larger, and supporting clapboard 11 inevitably can produce distortion, is therefore bolted comparisonEasy adjustment size makes can be parallel between backstop beam 12, is conducive to the synchronism that two energy-absorbing beams 8 are out of shape.
On front end-plate 9 and end plate 10, open the first through hole 27, the first through holes 27 on front end-plate 9 and end plate 10 withOn four end corresponding positions of cornue 14 of each energy-absorbing beam 8 ends, arrange respectively four, the shape of each the first through hole 27The shape and size of the end cornue 14 of shape and size and energy-absorbing beam 8 end faces are suitable.
At each energy-absorbing beam 8 two ends, a backing plate 28 is set respectively, backing plate 28 adopts half V welding manner and front end-plate 9 HesEnd plate 10 is fixedly connected with, and backing plate 28 plays as permanent backing plate the effect that improves welding quality therein. Energy-absorbingThe two ends of beam 8 are concordant with the outside of end plate 10 with front end-plate 9.
As shown in Fig. 1,4,5,6, guide frame 4 is welded on car body front end rigid wall 6, is one of extrusion moldingThe section bar of body structure, its length is up to coupler seat 5 front ends, the structure bag of its section bar from car body front end rigid wall 6Truss structure 30 in the middle of drawing together and the C shape chute 31 at two ends, the opening surface of C shape chute 31, to main endergonic structure 3, leadsStructure 4 is slidably connected by C shape chute 31 and the first slide block 26 with main endergonic structure 3, in guide frame 4 front end facesBetween position cave in backward, form triangular groove 32, the rear endvertex of triangular groove 32 with the two ends up and down of end faceThe certain length that extends back, forms the first defect groove 33 of strip, before front end underframe 7, guide frame 4 middle partsTwo ends up and down respectively to middle part extend certain length, form the second defect groove 34, the triangle of guide frame 4The setting of groove 32 and the first defect groove 33, the second defect groove 34 can allow the change of guide frame 4 with main endergonic structure 3Shape retreats and tears distortion, and the rigidity that prevents guide frame the last 4 hinders main endergonic structure 3 and retreats distortion.
In order to prevent that guide frame 4 inside from entering water, dust and other impurities, by the triangular groove of guide frame 4 32,The first defect groove 33, the second defect groove 34 cover sealing with metal sheet, wherein triangular groove 32 can be by thinMetallic plate covers two inclined-plane sealings, also can be vertically connected to by metal sheet the front end of whole triangular groove 32Portion's sealing. Guide frame 4 is slidably connected by C shape chute 31 and the first slide block 26 with main endergonic structure 3, when main energy-absorbingWhen structure 3 is subject to collision deformation, can produce relative displacement with guide frame 4 by the first slide block 26, make main energy-absorbing knotThe endergonic process of structure 3 can not be affected, and energy absorption ability can normally be brought into play, and in the time that train normally travels, first is slidingSpring steel 26b on piece 26 can increase the frictional force between main endergonic structure 3 and guide frame 4, makes main endergonic structure3 and guide frame 4 between connection more stable.
As shown in Figure 1, Anti-creeping energy absorbing structural 2 is made up of two energy absorbing tubes 35 and two groups of anti-climbing teeth 36, at each energy-absorbingOne end of pipe 35 is fixedly connected with one group of anti-climbing tooth 36, the front end riser of the other end of energy absorbing tube 35 and car body front end underframe 737 are fixedly connected with, and need to have and can hold after energy absorbing tube 35 after the front end riser 37 that Anti-creeping energy absorbing structural 2 connects therewithThe space of moving back, the position being connected with front end riser 37 at energy absorbing tube 35 arranges mount pad 38, and mount pad 38 passes through boltBe fixed on front end riser 37, bite (not shown) be radially set on mount pad 38, at energy absorbing tube 35While retreating, bite cutting energy absorbing tube 35 absorbs energy. When collision, bite cuts of energy absorbing tube 35 wall thicknessPoint, remaining part retreats to the space at front end riser 37 rear portions.
For meeting the requirement of European standard EN15227, the distance between two Anti-creeping energy absorbing structurals 2 is set as 1750mm,The main endergonic structure 3 of intermediate arrangement of two Anti-creeping energy absorbing structurals 2, main endergonic structure 3 connects by end plate 10 use boltsOn car body front end rigid wall 6, while hitch 18 stretches into main endergonic structure 3 and is fixedly connected with main endergonic structure 3, like thisLayout can also make the center of effort of whole energy absorption device on the height of coupler centre line, be conducive to power transmission andThe performance of the energy-absorbing effect of main energy absorption device 3.
Horizontal one end and the guide frame 4 of the front end riser 37 being connected with Anti-creeping energy absorbing structural 2 are welded to connect, the other endBe welded to connect with edge beam of underframe 39, the stiffening plate 40 of horizontal direction be set, stiffening plate 40 at the rear portion of front end riser 37Respectively arrange one in top and the bottom of front end riser 37 respectively, the front end of stiffening plate 40 and 37 welding of front end riser connectConnect, the both sides of stiffening plate 40 are welded to connect with guide frame 4 and edge beam of underframe 39 respectively, establish in the rear end of stiffening plate 40Put breach 41, provide operating space for bolt is connected and installed seat 38.
Hitch endergonic structure 1 comprises coupler seat 5, hitch 18, conquassation pipe 44, and coupler seat 5 is to arrange along cross-carRectangle structure, comprises seat board 45, gusset 46, the first riser 47, the second riser 48, the 3rd stiffener 49, slidingPiece mount pad 50.
As shown in Figure 1 and Figure 5, seat board 45 vertically arranges along cross-car, is fixedly connected on front end-plate 9, at seat board45 centre position arranges hitch by mouth 51, and gusset 46 is longitudinally fixedly connected on the front side of seat board 45, the first riser47 two ends, front side at seat board 45 longitudinally arrange also and are fixedly connected with seat board 45, the top of seat board 45 and bottom respectively toSunken inside forms trapezoidal or rectangular groove 52, is fixedly connected with the support of horizontal direction on each limit of groove 52Plate 53, the second risers 48 are fixedly connected in the back side edge of gripper shoe 53, and the position of the second riser 48 protrudes from backwardSeat board 45, the three stiffeners 49 are fixedly connected between gripper shoe 53 and the second riser 48, the 3rd stiffener 49 perpendicularIdentical with the vertical position of the backstop beam 12 arranging along cross-car to position, in gripper shoe 53, pass through mouth with hitchFlange 54 is extended forward in 51 corresponding positions, has the first pin-and-hole on flange 54, and slide block mount pad 50 is twoThere is the rectangle structure of boss 55, extend to the middle part of coupler seat 5 respectively at the two ends up and down of slide block mount pad 50Go out stiffener 43, the other end of stiffener 43 is fixedly connected with gripper shoe 53, two boss 55 of slide block mount pad 50Middle position is bolted in the first riser 47 outsides, at arranged outside second slide block of slide block mount pad 50The structure of 56, the second slide blocks 56 is identical with the first slide block 26, and an epitaxial lateral overgrowth of the second slide block 56 stretches out and runs through secondThe boss 42 of boss 42, the second slide blocks 56 of slide block 56 length inwardly and between the boss 55 of slide block mount pad 50 passes throughBolt connects, and between coupler seat 5 and guide frame 4, is slidably connected with C shape chute 31 by the second slide block 56.
Slide block mount pad 50 is designed to two, and to have the structure of boss 55 be when avoiding colliding, and slide block mount pad 50 is protrudingPart between platform 55 rubs with guide frame 4, increases the resistance that coupler seat 5 retreats.
While bumping, main endergonic structure 3 deforms while contact with backstop beam 12 to coupler seat 5, the 3rd stiffener49 and second riser 48 can withstand backstop beam 12, because gripper shoe 53 and the second riser 48 protrude from seat board 45 rear sides,In the time that deforming, energy-absorbing beam 8 can stop the larger distortion of accident of energy-absorbing beam 8.
Be fixedly connected with conquassation pipe 44 in the centre position of seat board 45, conquassation pipe 44 is through seat board 45 and seat board 45 and gusset46 are fixedly connected with, and the other end of conquassation pipe 44 stretches into supporting clapboard 11 places adjacent with front end-plate 9 in main endergonic structure 3,On conquassation pipe 44, on the position of the first pin-and-hole of corresponding flange 54, the second pin-and-hole is set, on hitch 18, arranges the 3rdPin-and-hole, hitch 18 is by shear pin (not shown), the first pin-and-hole, the second pin-and-hole, the 3rd pin-and-hole and coupler seat5 are fixedly connected with.
Because the distance between two Anti-creeping energy absorbing structurals 2 is larger, the two ends of coupler seat 5 are connected with guide frame 4 again,The lateral length of coupler seat 5 can be long, can cause like this Rigidity and strength of coupler seat 5 greatly to reduce, to hitch18 bearing capacity will reduce, therefore for strengthening to greatest extent the Rigidity and strength of coupler seat 5, before seat board 45Side arranges the gusset 46 of horizontal direction, and by between all parts in coupler seat 5 and coupler seat 5 and conquassation pipe 44 itBetween be made of one the foundry goods of structure, the material of coupler seat 5 and conquassation pipe 44 is preferably cast steel.
Hitch 18 is rearmounted crushing type hitch, and conquassation pipe 44 is arranged on the hook body afterbody of hitch 18, at the middle part of hook bodyBuffer 29 is set, between buffer 29 and hook body, is welded to connect or is structure as a whole, wherein the external diameter of buffer 29Slightly larger than the internal diameter of conquassation pipe 44, the external diameter size of buffer 29, with under pressurized state, can be pressed buffer 29Entering in conquassation pipe 44 is as the criterion conquassation pipe 44 expansion energy-absorbings.
As shown in Figure 1, because whole energy absorption device is flat, elongated structure, need to strengthen the knot of whole energy absorption deviceStructure is to reduce the vibration of its above-below direction in the time normally moving and collide as far as possible, and reinforcement mode is at two guiding knotsThe second defect groove 34 at structure 4 middle parts is rear arrange respectively the 4th stiffener 25, the four stiffeners 25 strengthened energy absorption device andThe bonding strength of rigid wall, and stoped the bending of the above-below direction of energy absorption device to be out of shape. For save space andIncrease the stability of energy absorption device, the 4th stiffener 25 adopts the right-angled trapezium metallic plate that top is short, bottom is long, itsRight-angle side is connected with the welded top of car body front end rigid wall 6 and guide frame 4 respectively, two the 4th stiffeners 25 itBetween weld two tie-beams 24 to support the 4th stiffener 25, because the top margin of the 4th stiffener 25 is shorter, base isLong, in the position of the top of the 4th stiffener 25 and the hypotenuse of close the 4th stiffener 25, a tie-beam 24 is respectively set,Due to position and the size restrictions of tie-beam 24, between two tie-beams 24, vertically arrange.
As shown in Fig. 1 and Fig. 6, for meeting the requirement of European standard, can be respectively by two guide frames 4 end of towardsUpper and lower two welding arms 22 are extended in the side of frame side bar 39, the stiffening plate after each welding arm 22 and front end riser 3740 butt welding connect, and end face and the bottom surface of two guide frames 4 are extended respectively two welding arms up and down simultaneously23, the welding arm 23 at two tops of each guide frame 4 is connected with the 4th stiffener 25 butt welding on its top jointly,The welding arm 23 of two bottoms is connected with the vehicle body bottom frame butt welding of its underpart jointly.
In all parts of the energy absorption device in the present embodiment, adopt the aluminium alloy that weight is light, intensity is larger as far as possibleMaterial, wherein coupler seat 5 and conquassation pipe 44 adopt cast steel, and hitch 18, shear pin, spring steel 26b adopt carbon steel,Miscellaneous part all adopts aluminum alloy material.
While bumping, the distortion endergonic process of whole energy absorption device is divided into following steps:
The first step, as shown in Figure 7 and Figure 8, hitch 18 contact-impact power generations shearing backward, shearing is greatly to oneAfter determining degree, hitch 18 can be cut off shear pin, and buffer 29 pressurizeds enter conquassation pipe 44, conquassation pipe 44 expansion absorptionEnergy.
Second step, as shown in Figure 9, if after conquassation pipe 44 expansion absorption energy finish, collision energy is not all disappearedConsume, hitch 18 pushes backward by buffer 29 pipe of bursting and 44 conquassation pipe 44 is retreated, and drives after coupler seat 5 simultaneouslyMove back, now main endergonic structure 3 compressive deformations retreat.
The 3rd step, as shown in figure 10, if after main endergonic structure 3 distortion finishes, collision energy is not all consumed,Hitch 18 pressurizeds continue to retreat through conquassation pipe 44, and the energy absorbing tube 35 in Anti-creeping energy absorbing structural 2 retreats simultaneously, occursCutting energy-absorbing.
In the present embodiment, the energy-absorbing beam 8 of main endergonic structure 3 adopts five pass materials, and stability and intensity are better, energy-absorbingMeasure greatlyr, the impulsive force that each energy-absorbing beam 8 can bear reaches 1100KN, and is difficult for producing up or downLarge intentional deformation, the setting of supporting clapboard 11 makes two energy-absorbing beams 8 can deform in same pace, in supporting clapboard 11 surroundingsBackstop beam 12 is set, is out of shape the distortion deviation of at the end correcting two energy-absorbing beams 8 at energy-absorbing beam 8, be conducive to energy-absorbing beam 8Compatible deformation, in addition, orderly, the controlled change that the first induction groove 16 is conducive to energy-absorbing beam 8 is set on energy-absorbing beam 8Shape.
Guide frame 4 play the guiding role to main endergonic structure 3 and retreating of coupler seat 5, and guide frame 4 adopts one simultaneouslyThe section bar of body structure, strength and stiffness are better, are conducive to stop the horizontal intentional deformation of energy-absorbing beam 8, at guide frameThe triangular groove 32, the first defect groove 33, the second defect groove 34 that on 4, arrange can make guide frame 4 with main energy-absorbingStructure 3 is out of shape, and can not hinder retreating of main endergonic structure 3. In addition, guide frame 4 plays and connects main endergonic structure 3Effect with car body front end underframe 7.
Coupler seat 5 adopts integrated structure, firmer, and the gusset 46 longitudinally arranging prevents hitch 18 radiallyDistortion, the 3rd stiffener 49 at coupler seat 5 tops plays backstop action in the time that coupler seat 5 retreats to backstop beam 12 place,Stop coupler seat 5 to be out of shape and to continue and retreat, the conquassation pipe 44 being structure as a whole with coupler seat 5 energy-absorbing that expands in the time of collision,By being set, slide block mount pad 50 strengthens the bonding strength between slide block and coupler seat 5.
The 4th stiffener 25 between guide frame 4 and car body front end rigid wall 6 has been strengthened energy absorption device and rigid wall 6Between bonding strength, and stoped the bending distortion of the above-below direction of energy absorption device, guide frame 4 and the 4th addsStrong plate 25 has been stablized energy absorption device on the whole, has prevented the above-below direction of energy absorption device and horizontal distortion.
This car body front end energy absorption device is by by main endergonic structure 3, hitch endergonic structure 1, Anti-creeping energy absorbing structural 2 combinationsInto a single integrated structure, greatly increase the energy absorption of car body front end energy absorption device, its energy that can absorb reaches 4.6MJLeft and right, and can make the distortion energy-absorbing that energy absorption device can stepped ordering, simultaneously by by main endergonic structure 3, carHook endergonic structure 1 and Anti-creeping energy absorbing structural 2 are all arranged on the position of car body front end underframe 7, at the bottom of having saved car body front endThe upper space of frame 7, makes the installing space of the equipment such as car body front end switching mechanism larger, has facilitated car body front end energy-absorbingThe installation of device and other equipment of front end.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings. In every case beDo not depart from the content of technical solution of the present invention, any letter of above embodiment being done according to technical spirit of the present inventionSingle amendment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (11)
1. a rail vehicle front end energy absorption device, comprises Anti-creeping energy absorbing structural, hitch endergonic structure, and its feature existsIn: described Anti-creeping energy absorbing structural is two and is fixedly connected on respectively on car body front end underframe, at described anti-creep energy-absorbingBetween structure, be also provided with main endergonic structure and guide frame, described hitch endergonic structure is by coupler seat and described masterEndergonic structure is fixedly connected with, and described coupler seat is fixedly connected on the leading section of described main endergonic structure, described main energy-absorbingStructure and described guide frame are fixedly connected on the rigid wall of car body front end, and described guide frame is at described main energy-absorbingStructure both sides and described main endergonic structure and described hitch endergonic structure are slidably connected, and described main endergonic structure comprises suctionCan beam, front end-plate, end plate, supporting clapboard and backstop beam, at described front end-plate, end plate, supporting clapboardHitch is set by mouth on centre position, the two ends of described energy-absorbing beam are fixedly connected with end plate with described front end-plate,Described end plate is fixedly connected with the rigid wall of described car body front end, along described energy-absorbing beam, multiple institutes is longitudinally vertically setState supporting clapboard, be fixedly connected with described backstop beam in the surrounding of described supporting clapboard.
2. a kind of rail vehicle front end energy absorption device according to claim 1, is characterized in that: described supportThe profile of dividing plate is rectangle, and suitable the leading to of section profile with described energy-absorbing beam is set on described supporting clapboardHole, described energy-absorbing beam stretches into described through hole and is fixedly connected with described supporting clapboard.
3. a kind of rail vehicle front end energy absorption device according to claim 1, is characterized in that: described energy-absorbingBeam adopts five pass materials, formed by four end cornues and middle connecting plate, and be the overall structure section bar of extrusion modling.
4. a kind of rail vehicle front end energy absorption device according to claim 3, is characterized in that: before describedOn end plate and end plate, opening respectively four first with four end corresponding positions of cornue of each described energy-absorbing beam end leads toHole, the shape and size in four end holes, angle of the shape and size of each described the first through hole and described energy-absorbing beam-ends faceSuitable.
5. a kind of rail vehicle front end energy absorption device according to claim 3, is characterized in that: in each instituteThe two ends of stating four of the energy-absorbing beam each connecting plates between end cornues cave inward respectively and form the first induction groove,On each described connecting plate with respect to described supporting clapboard both sides respectively arrange one second induction groove.
6. a kind of rail vehicle front end energy absorption device according to claim 1, is characterized in that: described backstopBeam is connected to form side by side by three box-girders, wherein between both sides box-girder and intermediate box ellbeam, is bolted,Described intermediate box ellbeam is fixedly connected with described supporting clapboard.
7. a kind of rail vehicle front end energy absorption device according to claim 1, is characterized in that: described backstopBeam disconnects at four end angle places of described supporting clapboard, is fixedly connected with by the Connection Block of box-shaped at gap, described inOn the side plate in the outside of Connection Block, be fixedly connected with the first slide block.
8. a kind of rail vehicle front end energy absorption device according to claim 7, is characterized in that: described guidingTruss structure in the middle of structure comprises and the C shape chute at two ends, described truss structure is fixedly connected with described C shape chute,The opening surface of described C shape chute is to described main endergonic structure, described in described guide frame and described main endergonic structure pass throughC shape chute and described the first slide block are slidably connected.
9. a kind of rail vehicle front end energy absorption device according to claim 8, is characterized in that: described guidingStructure is the integrative-structure section bar of extrusion modling.
10. a kind of rail vehicle front end energy absorption device according to claim 8, is characterized in that: described hitchEndergonic structure comprises coupler seat and hitch, and described coupler seat is the rectangle structure arranging along cross-car, describedThe both sides of coupler seat are respectively arranged with the second slide block, between described coupler seat and described guide frame, pass through described secondSlide block and described C shape chute are slidably connected.
11. a kind of rail vehicle front end energy absorption devices according to claim 10, is characterized in that: describedThe centre position of coupler seat is fixedly connected with conquassation pipe, and one end of described conquassation pipe is fixedly connected with described coupler seat, instituteThe other end of stating conquassation pipe stretches in described main endergonic structure and the described supporting clapboard place that is positioned at forefront.
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