CN206926655U - Combined type is kept off a car energy absorber - Google Patents

Combined type is kept off a car energy absorber Download PDF

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Publication number
CN206926655U
CN206926655U CN201720729949.4U CN201720729949U CN206926655U CN 206926655 U CN206926655 U CN 206926655U CN 201720729949 U CN201720729949 U CN 201720729949U CN 206926655 U CN206926655 U CN 206926655U
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China
Prior art keywords
car
buffer
energy
combined type
energy absorber
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CN201720729949.4U
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Chinese (zh)
Inventor
黄科
刘洪涛
孔祥坤
于文泽
罗昌杰
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Qian Hangda Science And Technology Ltd Of Shenzhen
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Qian Hangda Science And Technology Ltd Of Shenzhen
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Abstract

The utility model belongs to track train security equipment technology field,A kind of combined type is aimed to provide to keep off a car energy absorber,The utility model,There is fixed platform by being abutted in the end of rail track,The parallel slide rail for terminating in fixed platform can be slided along guide rail by being set on guide rail,Wherein,The abutment end of first order buffer stretches out slide rail to abut moving object,End is buffered on slide rail,The fixing end of second level buffer is in fixed platform,Telescopic end is on slide rail and can be moved forward and backward relative to fixing end is flexible with the slide rail that links with guide rail,So,When the speed of service of moving object is less than pre-set velocity,First order buffer can individually absorb moving object Impact energy,It is on the contrary,Second level buffer and first order buffer are together by the common Impact energy for absorbing moving object,Therefore,The energy absorber of keeping off a car absorbs Impact energy by distribution,Stroke is short,Energy-absorbing is big,Space is small,It is in light weight,Cost is low and energy-absorbing effect is steady.

Description

Combined type is kept off a car energy absorber
Technical field
The utility model belongs to track train safety protection equipment technical field, is to be related to a kind of combination more specifically Formula is kept off a car energy absorber.
Background technology
In recent years, the urban rail transit construction in two, three line cities develops rapidly, and national track working line gradually increases, Train because the situation of unexpected derailing out of control also happens occasionally, thus, in the running of track train, improve active control While reliability, because the usual quality of the car body of track train is big, travel speed is relatively large, inertia is big and wheel track between friction Power is smaller, to improve security performance, at line end or train overhaul station, implements passive safety prevention measure and drops to injury It is minimum to be necessary.
According to GB/T 50490-2009《Urban rail transit technology specification》7.2.6 regulation:The most end of track should be set Car bumper, and the car bumper being arranged on main track, turn back line and vehicle test line should be able to bear train with during 15km/h speed impacts Shock loading.Thus, car lug should have brake force and pooling feature to effectively improve passive security protection.
Generally, car lug is divided into fixed car lug, slides car lug, slides hydraulic buffer stopper etc..In the prior art, The various car lugs in China have been had large improvement in terms of brake force, but generally because without buffering, energy-absorbing is few, impulse stroke Long, the defects of floor space is big and performance is single, and actual demand can not be met.
In addition, with the quickening of people's rhythm of life, more quick to go on a journey, the speed of service of track train constantly carries Height, when the speed of service of train is more than 25km/h, forcing train to stop using car lug needs the kinetic energy that absorbs reachable To 4MJ, however, existing car lug can not absorb so big kinetic energy in less buffer distance, therefore, there is an urgent need to a Absorb the car lug that energy is high, buffer distance is short.
Utility model content
The purpose of this utility model is to provide a kind of combined type and kept off a car energy absorber, to solve present in prior art Existing car lug can not absorb the technical problem of larger Impact energy in less buffer distance.
In order to solve the above technical problems, the technical solution adopted in the utility model is:A kind of combined type is provided to keep off a car energy-absorbing Device, the combined type are kept off a car energy absorber, and the moving object to stop on guide rail continues to run with, including slide rail and are connected to described lead The fixed platform of the end of rail, the slide rail is on the guide rail and can be slided along the guide rail and terminates in the fixation parallel and put down Platform;
The combined type keeps off a car that energy absorber also includes can be independent when the moving object speed of service is less than pre-set velocity Ground absorbs the first order buffer of the Impact energy of the moving object and when the moving object speed of service is more than or equal to The second level buffering of the Impact energy of the moving object can be absorbed during the pre-set velocity jointly with the first order buffer Device;
The first order buffer has abutment end and buffering end, and the second level buffer has telescopic end and fixation End, the abutment end of the first order buffer stretch out the slide rail to be abutted with the moving object, and the buffering end is set In on the slide rail;The telescopic end of the second level buffer is on the slide rail and can be stretched relative to the fixing end Contracting is moved forward and backward with the slide rail that links with the guide rail, and the fixing end is in the fixed platform.
Further, the first order buffer includes at least one piston rod, hanging buffer front stall, at least one The elastic device and be located at that the piston rod corresponding to making while the buffer front stall that links move forward and backward along the guide rail The first loading tool part on the slide rail;One end of each piston rod is on the rear end face of the buffer front stall, separately One end is located on the corresponding elastic device;Each elasticity dress is connected with the front end face of the first loading tool part Put, the telescopic end of the second level buffer is connected with rear end face.
Further, each elastic device includes cylinder body, and one end of the cylinder body is inserted with the corresponding piston rod, The other end is filled with made of elastomeric material bolster to join on the described first loading tool part, and in each cylinder body The piston rod corresponding to dynamic is elastic relative to the described first loading tool part.
Further, each piston rod relative to the guide rail center line symmetrical setting, it is and mutual with the guide rail It is parallel.
Further, the piston rod be provided with two, the cylinder body be provided with two, the center line of each piston rod with it is right The center line for the cylinder body answered is on the same line.
Further, combined type energy absorber of keeping off a car also includes at least one anti-creep part, and each anti-creep part is located at On the front end face of the buffer front stall, and relative to the center line symmetrical setting of the guide rail.
Further, the slide rail is K-type slide rail.
Further, the second level buffer includes at least one has the first cavity in the fixed platform Fixed beam and at least one linkage slide rail the telescoping rod with the second cavity;In each first cavity and/ Or metal beehive energy-absorbing block assembly is filled with each second cavity, one end of each telescoping rod is connected with described first Level buffer, the other end is mutually inserted with the corresponding fixed beam so that the speed of service of the moving object is more than described Each telescoping rod is inhaled relative to the corresponding fixed beam movement with compressing the corresponding metal beehive during pre-set velocity Can block assembly.
Further, the second level buffer also includes at least one upper surface for being disposed longitudinally on the fixed platform On support member, each support member is set at least one fixed beam, is parallel to each other and gap setting;Described group It is box-like keep off a car energy absorber also include to by each telescoping rod be arranged in the fixed platform and with each expansion link Second loading tool part of part relative movement.
Further, center line of each fixed beam along the guide rail is arranged symmetrically, and mutual with the guide rail It is parallel.
Compared with prior art, the keep off a car beneficial effect of energy absorber of combined type provided by the utility model is:
The combined type keep off a car energy absorber rail track end abut have fixed platform, on guide rail set can be along guide rail The parallel slide rail for terminating in fixed platform is slided, and first order buffer is set on slide rail, the second level is set on the stationary platform Buffer, wherein, the abutment end of first order buffer stretches out slide rail to abut moving object such as vehicle, and buffering end is located at slide rail On, the fixing end of second level buffer in fixed platform, telescopic end on slide rail and can relative to fixing end it is flexible with Linkage slide rail moves forward and backward with guide rail, so, when the speed of service of moving object is less than pre-set velocity, first order buffer energy Individually absorb the Impact energy of moving object, when the speed of service of moving object is more than or equal to pre-set velocity, the second level Buffer and first order buffer together will the common Impact energy for absorbing moving object, in a word, the combined type is kept off a car energy absorber Impact energy is absorbed by multiple step format, larger kinetic energy can be absorbed in shorter buffer distance, overall up stroke is short, energy-absorbing Greatly, space is small, in light weight, cost is low and energy-absorbing effect is steady, compensate for the deficiency of existing car lug on domestic market.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new Some embodiments of type, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is that combined type is kept off a car the dimensional structure diagram of energy absorber in the utility model embodiment;
Fig. 2 is that combined type is kept off a car the front view of energy absorber in Fig. 1;
Fig. 3 be in Fig. 1 combined type keep off a car energy absorber first order buffer part-structure dimensional structure diagram;
Fig. 4 be in the utility model embodiment combined type keep off a car energy absorber second level buffer parts thereof it is vertical Body assembling schematic diagram;
Fig. 5 is the exploded perspective schematic diagram of second level buffer in the utility model embodiment;
Fig. 6 be in the utility model embodiment combined type keep off a car energy absorber metal beehive energy-absorbing block assembly front view;
Fig. 7 is the cross-sectional view of the honeycomb core of metal beehive energy-absorbing block assembly in Fig. 6;
Fig. 8 is that the shape residing for the metal beehive energy-absorbing block assembly of preceding second level buffer is collided in the utility model embodiment State figure;
Fig. 9 is the shape residing for the metal beehive energy-absorbing block assembly of collision rift second level buffer in the utility model embodiment State figure;
Figure 10 is that combined type is kept off a car the working state schematic representation of energy absorber in the utility model embodiment;
Figure 11 be in the utility model embodiment combined type keep off a car energy absorber metal beehive energy-absorbing block assembly static pressure Contracting energy absorption curve figure;
Figure 12 be in the utility model embodiment combined type keep off a car energy absorber metal beehive energy-absorbing block assembly dynamic punching Hit energy absorption curve figure.
Wherein, the label in accompanying drawing is as follows:
10- guide rails, 20- pillows stone, 30- moving objects;100- slide rails, 200- fixed platforms;
300- first order buffer, 310- abutment ends, 320- bufferings end, 330- piston rods, 340- buffers front stall, 350- Elastic device, 351- cylinder bodies;
400- second level buffer, 410- telescopic ends, 420- fixing ends, 430- fixed beams, the cavitys of 431- first, 432- Baffle plate, 440- telescoping rods, 450- second load tool part, 451- mounting holes, 460- metal beehive energy-absorbings block assembly, 461- the One intensity metal honeycomb energy absorbent block, 462- the second intensity metal honeycombs energy absorbent block, 463- honeycomb cores, 470- support members, 471- branch Support hole, 480- blocks;
500- anti-creeps part, 510- anti-creeps denticle, 600- first load tool part.
Embodiment
In order that technical problem to be solved, technical scheme and beneficial effect of the present utility model are more clearly understood, Below in conjunction with drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific Embodiment only to explain the utility model, is not used to limit the utility model.
It should be noted that when part is referred to as " being fixed on " or " being arranged at " another part, it can be directly another On individual part or it is connected on another part.When a part is known as " being connected to " another part, it can be with It is directly to another part or is indirectly connected on another part.
It should be noted that in the accompanying drawing of the utility model embodiment same or analogous label correspond to it is same or analogous Part;In description of the present utility model, it is to be understood that if there is the side of the instructions such as term " on ", " under ", "left", "right" Position or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplification is retouched State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation, Therefore, described in accompanying drawing position relationship term being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent, for this For the those of ordinary skill in field, the concrete meaning of above-mentioned term can be understood as the case may be.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In description of the present utility model, " multiple " be meant that two or two with On, unless otherwise specifically defined.
A kind of combined type provided by the utility model is kept off a car below in conjunction with specific accompanying drawing energy absorber realization carry out it is detailed Ground describes.
It should be noted that the combined type is kept off a car, energy absorber is that a kind of moving object 30 to stop on guide rail 10 continues to transport It is capable to improve the protector of moving object security performance, be mostly installed at end or the train overhaul of rail line Station location, certainly, it is also used in other suitable places.Specifically, so that moving object 30 is the vehicle such as subway as an example, the combination Formula keep off a car energy absorber mainly to the circuit that avoids plunging off the tracks when vehicle is surprisingly out of control, prevent personnel from injuring and vehicle and other setting Apply damage.Certainly, moving object is not limited only to vehicle, can also be other objects suitably run on the guide rail 10 of track.
It should be noted that the combined type is kept off a car, energy absorber is mainly used in urban rail transit technology field at present, Certainly, can be additionally used in as needed in other fields such as space technology field, elevator safety protection technology field.
As shown in Figure 1, Figure 2 with shown in Figure 10, combined type energy absorber of keeping off a car includes slide rail 100 and fixed platform 200, wherein, To shorten buffer distance, and the fluctuation in the slip and knockout process of moving object 30 is reduced, and then improve combined type gear The barrier propterty of car energy absorber, fixed platform 200 are connected to the end of guide rail 10.
Again as shown in figure 1, slide rail 100 is on guide rail 10, and slide rail 100 can slide along guide rail 10 and terminate in fixed put down parallel Platform 200.In the present embodiment, as shown in Fig. 2 guide rail 10 is provided with two, and the gap of two guide rail 10 and the pillow for being disposed side by side on track On stone 20, accordingly, slide rail 100 also is provided with two, and each slide rail 100 is arranged on corresponding guide rail 10.Specifically, it is guarantee The mobile stationarity of the energy absorber of keeping off a car, and to continue to keep the mounting means of traditional slidingtype buffer and guide rail 10, And then the transformation to existing car lug structure is reduced as far as possible, each slide rail 100 is general K-type slide rail 100.
As shown in figure 1, combined type is kept off a car, energy absorber also includes first order buffer 300 and second level buffer 400 again, its In, when the speed of service when moving object 30 is hit is less than pre-set velocity, first order buffer 300 can individually absorb motion The Impact energy of object 30.When the speed of service when moving object 30 is hit is more than or equal to pre-set velocity, second level buffering Device 400 can absorb the Impact energy of moving object 30 jointly with first order buffer 300.
It is to be appreciated that as shown in figure 1, first order buffer 300 is located at before second level buffer 400, moving object Body 30 first touches effect with first order buffer 300, and the speed of service when moving object 30 is hit is more than or equal to default speed When spending, first order buffer 300 keeps out the impulsive force of incessantly moving object 30, and slide rail 100, which starts to slide to fixed platform 200, to be leaned on When near, second level buffer 400 just starts to act on, until slide rail 100 is supported in fixed platform 200, second level buffer 400 Just end energy-absorbing.
Again as shown in figure 1, first order buffer 300 has abutment end 310 and buffering end 320, second level buffer 400 has There are telescopic end 410 and fixing end 420.Wherein, the abutment end 310 of first order buffer 300 stretches out slide rail 100, to facilitate motion Object 30 abuts when hitting with moving object 30, and the buffering end 320 of first order buffer 300 is on slide rail 100, so, when When first order buffer 300 can not keep out the impact of moving object 30 alone, first order buffer 300 can be with slide rail 100 1 Rise and slide.
Again as shown in figure 1, the telescopic end 410 of second level buffer 400 is on slide rail 100, and can be relative to fixing end 420 is flexible movable with guide rail 10 with the slide rail 100 that links, and the fixing end 420 of second level buffer 400 is located at fixed platform On 200, so, when the speed of service when moving object 30 is hit is more than or equal to pre-set velocity, in supporting for moving object 30 Pressure, slide rail 100 link first order buffer 300 slided to fixed platform 200 it is close, meanwhile, second level buffer 400 is consolidated Fixed end 420 is fixed, and telescopic end 410 is compressed, until slide rail 100 is connected in fixed platform 200.Certainly, motion is removed After object 30, telescopic end 410 can be in the presence of screen resilience, and linkage slide rail 100 and first order buffer 300 are slowly extensive together It is past again to be initially located proximate to.
By upper, it is possible to understand that ground, the maximum cushioning of moving object 30 is apart from the initial position for slide rail 100 to fixed platform 200 distance, that is, generally, moving object 30 is kept off a car through this after energy absorber buffering energy-absorbing, you can in the initial bit of slide rail 100 Substantially stop some position put between fixed platform 200.Obviously, the combined type keeps off a car energy absorber using multiple step format absorption energy The mode of amount progressively absorbs the Impact energy of moving object 30, so as to accomplish to reduce to greatest extent in shorter buffer distance Infringement, overall up stroke compared with it is short, floor space is small, it is more convenient installation detection.
Specifically, in the present embodiment, pre-set velocity 15km/h, when train is hit with the speed of service less than 15km/h Hit this keep off a car energy absorber when, only first order buffer 300 works, and second level buffer 400 does not work;Before train shock When the speed of service is 15km/h~25km/h, first order buffer 300 and second level buffer 400 work together, and inhale substantially Receive all energy during train collision, injury is preferably minimized;When the speed of service before train shock is more than 25km/h, the First-level buffer device 300 and second level buffer 400 work together, but all energy when can not absorb train collision, Zhi Nengyi Determine damage caused by train collision is reduced in degree.
Further, kept off a car as combined type provided by the utility model a kind of embodiment of energy absorber, such as Fig. 1 Shown in Fig. 2, for realize the first time of moving object 30 buffer, first order buffer 300 include at least one piston rod 330, Hanging buffer front stall 340, at least one elastic device 350 and the first loading tool part 600 on slide rail 100.Its In, on the rear end face of buffer front stall 340, the other end is located at corresponding elastic device 350 for one end of each piston rod 330 On.Each elastic device 350 is connected with the front end face of first loading tool part 600, second level buffer is connected with rear end face 400 telescopic end 410.
In this embodiment, it is preferred that to ensure that this keeps off a car energy absorber when being hit, stress equalization is without inclined Move, as shown in Fig. 1 and Figure 10, each piston rod 330 relative to guide rail 10 center line symmetrical setting, it is and mutually flat with guide rail 10 OK, in other words, first order buffer 300 is symmetrical structure.
Furthermore it is possible to understand ground, elastic device 350 can make corresponding piston rod 330 while the edge of buffer front stall 340 of linking Guide rail 10 is movable, and in other words, moving object 30, which is hit, to be directly pressed on buffer front stall 340, and each piston rod 330 contracts Return with elastic device 350 corresponding to extruding, meanwhile, initial position of the linkage buffer front stall 340 to the first loading tool part 600 Close, until elastic device 350 is depressed into the limit, first order buffer 300 is just overall to be leaned on slide rail 100 to fixed platform 200 Closely.
Further, kept off a car as combined type provided by the utility model a kind of embodiment of energy absorber, be true Each 350 flexible precompression of elastic device is protected, and facilitates first order buffer 300 repeatedly to utilize, such as Fig. 1 and figure Shown in 3, each elastic device 350 includes cylinder body 351, wherein, one end of cylinder body 351 is inserted with corresponding piston rod 330, the other end On the first loading tool part 600, specifically, each cylinder body 351 is connected on the first loading tool part 600 by flange.
In addition, it is elastic for convenience of piston rod 330 corresponding to linkage, it is filled with each cylinder body 351 by elastomeric material system Into bolster (not shown).Specifically, in the present embodiment, the filling elastic cement material in each cylinder body 351, wherein, this Kind material is a kind of high viscosity, compressible, flowable uncured organo-silicon compound, and it is in -80 DEG C~+250 DEG C models There is higher heat endurance, chemical stability and resistance to ag(e)ing in enclosing, and it is odorless, nontoxic, it is pollution-free to environment and personnel.Cause This elastic gel material can come consumed energy and storage energy according to the ratio that actual condition needs, thus, each elastic device After being filled with the material in cylinder body 351 corresponding to 350, each elastic device 350 avoids the need for adding response agency or external force auxiliary. So the first order buffer 300 also turns into daub buffer, it has good stability, reliability, long lifespan and exempts to tie up The characteristics such as shield, moreover, because being the filling elastic cement material in cylinder body 351, after elastic cement elastic properties of materials fatigue, The elastic cement material that can also more renew in time, thus, the first order buffer 300 can also reuse.
Certainly, in actual applications, the bolster in the first order buffer 300 is not limited only to elastic cement, can also be The flexible material such as rubber is made, certainly, the bolster can also be it is other it is suitable can drive each expansion link to stretch zero Part.
Specifically, kept off a car as combined type provided by the utility model a kind of embodiment of energy absorber, piston rod 330 are provided with two, and accordingly, cylinder body 351 is provided with two.To ensure that balance does not shift, and more efficiently play buffering Act on and then improve the reliability of the energy absorber of keeping off a car, the center line of each piston rod 330 and the corresponding cylinder body 351 Center line is on the same line.
Further, kept off a car as combined type provided by the utility model a kind of embodiment of energy absorber, for drop In such as Vehicular impact working angles of harmonic motion object 30, the fluctuation of the energy absorber of keeping off a car, increase the contact area with vehicle, reduce Laterally opposed slip between vehicle and the energy absorber of keeping off a car, creep during so as to prevent Vehicular impact, reduce vehicle derailing Risk and reduce that car body destroys and the probability of injury to personnel, combined type energy absorber of keeping off a car also include at least one anti-creep part 500, wherein, each anti-creep part 500 is on the front end face of buffer front stall 340.
As shown in Fig. 2 to ensure the stress balance of first order buffer 300, each anti-creep part 500 relative to guide rail 10 center Line is symmetrical arranged.Specifically, in the present embodiment, the front end face of each anti-creep part 500 is provided with least one anti-creep denticle 510, Each anti-creep denticle 510 arranges perpendicular to guide rail 10, and along the interword gap of direction one perpendicular to guide rail 10.
Further, keep off a car as combined type provided by the utility model a kind of embodiment of energy absorber, such as scheme 1st, shown in Fig. 4 and Fig. 5, second level buffer 400 includes an at least fixed beam 430 and an at least telescoping rod 440, its In, each fixed beam 430 can be square or circular rod member, can specifically be decided according to the actual requirements.Such as Fig. 4 and Fig. 5 institutes Show, each fixed beam 430 is parallel to each other in fixed platform 200 and with guide rail 10, it is preferable that to ensure second level buffer 400 stress balances, center line of each fixed beam 430 along guide rail 10 are arranged symmetrically.In addition, energy-absorbing material is accommodated for convenience, Each fixed beam 430 has the first cavity 431.Accordingly, one end of each telescoping rod 440 be connected on the first loading workpiece with Link slide rail 100, and each telescoping rod 440 has the second cavity.
When speed of service during to ensure that moving object 30 is hit is more than or equal to pre-set velocity, second level buffer 400 Cushioning effect can be played, as shown in Figure 4 and Figure 5, metal beehive is filled with each first cavity 431 and/or in each second cavity Energy-absorbing block assembly 460.Specifically in the present embodiment, it is filled with metal beehive in each first cavity 431 and in each second cavity Energy-absorbing block assembly 460.Again as shown in Figure 4 and Figure 5, one end of each telescoping rod 440 is connected with first order buffer 300, specifically In the present embodiment, one end of each telescoping rod 440 is directly connected to the first loading tool part 600.Each telescoping rod 440 it is another One end is mutually inserted with corresponding fixed beam 430, so, each flexible when first order buffer 300 can not act on alone again Rod member 440 can be moved relative to corresponding fixed beam 430 to compress corresponding metal beehive energy-absorbing block assembly 460, so as to help First order buffer 300 is helped to absorb the Impact energy of moving object 30.
It should be noted that as shown in Figure 8 and Figure 9, baffle plate 432 is provided with the second cavity of each telescoping rod 440, specifically Ground, formed with a closed annular seal space and an open accommodating chamber between baffle plate 432 and corresponding telescoping rod 440, its In, the annular seal space accommodates metal beehive energy-absorbing block assembly 460, and the accommodating chamber communicates with corresponding first cavity 431, and with it is right The first cavity 431 answered accommodates the metal beehive energy-absorbing block assembly 460 of fixed beam 430 jointly.
By upper, it is possible to understand that ground, fixed beam 430 correspond with telescoping rod 440, and each fixed beam 430 mainly rises To the effect for being oriented to and placing metal beehive energy-absorbing block assembly 460 for corresponding telescoping rod 440.Such as Fig. 6, Fig. 8 and Fig. 9 institute Show, when in the second level, buffer 400 works, its Impact energy is acted directly on each fixed beam 430 and each by moving object 30 In metal beehive energy absorbent block in telescoping rod 440, under the guide effect of fixed beam 430, each metal beehive energy absorbent block group Part 460 can be compressed along the direction of motion of moving object 30, so as to realize that the Impact energy train is converted into each metal honeybee The plastic deformation of nest energy absorbent block, so that it is guaranteed that the safety of car body and personnel.
As shown in Figure 6 and Figure 7, each metal beehive energy-absorbing block assembly 460 includes the He of the first intensity metal honeycomb energy absorbent block 461 Second intensity metal honeycomb energy absorbent block 462, wherein, the first intensity metal honeycomb energy absorbent block 461 and the second intensity metal honeycomb are inhaled Energy block 462 is respectively provided with honeycomb core 463, and the thickness of the first intensity metal honeycomb energy absorbent block 461 is less than the second intensity metal honeycomb The thickness of energy absorbent block 462, accordingly, the intensity of the first intensity metal honeycomb energy absorbent block 461 are inhaled less than the second intensity metal honeycomb The intensity of energy block 462.Generally, each first intensity metal honeycomb energy absorbent block 461 and each second intensity metal honeycomb energy absorbent block 462 are equal It is made using shaping stacking or pulling method, so, can greatly improves effective stroke ratio, effectively ensure moving object 30 impulsive force can efficiently be converted into the plastic deformation of each second intensity metal honeycomb energy absorbent block 462, while ensure energy-absorbing peak Value is than small, impact smooth fluctuations and in light weight etc..
Specifically, in the present embodiment, as shown in Figure 6 and Figure 7, to make second level buffer 400 in moving object 30 There is excellent energy absorption characteristics, each first intensity metal honeycomb energy absorbent block 461 and each second intensity metal honeycomb in the direction of motion The honeycomb core 463 of energy absorbent block 462 is a kind of metal polyporous material.Preferably, each metal beehive energy-absorbing block assembly 460 is by aluminium Material is made, certainly, in fact, also other suitable materials can be selected to be made as needed.By upper, the second level buffer 400 it is compact-sized, reliable and in light weight.
Further, kept off a car as combined type provided by the utility model a kind of embodiment of energy absorber, such as Fig. 1 Shown in Fig. 5, for convenience of each telescoping rod 440 is arranged in fixed platform 200, and then second level buffer 400 is ensured Reliability, combined type keep off a car energy absorber also including the second loading tool part 450, have Telescopic for convenience of each expansion link, should Second loading tool part 450 relatively moves with each telescoping rod 440.Wherein, as shown in Figure 1 and Figure 5, the second loading tool part At least one mounting hole 451 is offered on 450, each mounting hole 451 corresponds with each telescoping rod 440, and each mounting hole 451 Profile and size adapt to the profile and size of each telescoping rod 440 respectively.Specifically, in the present embodiment, telescoping rod 440 have two and be quadrangle rod member, and mounting hole 451 offers two.
By upper it is to be appreciated that by using the second loading tool part 450, each of second level buffer 400 can guarantee that Fixed beam 430 and each telescoping rod 440 are not susceptible to deform in the course of the work, are conveniently replaceable respective internal metal beehive Energy-absorbing block assembly 460, meanwhile, be also convenient for each fixed beam 430 and each telescoping rod 440 and reuse, so save consumptive material and The dismounting of the energy absorber of keeping off a car is facilitated to safeguard.
Accordingly, to improve the bending strength of each fixed beam 430, and then the reliability of second level buffer 400 is improved, Second level buffer 400 also includes at least one support member 470, wherein, each support member 470 is disposed longitudinally on fixed platform 200 Upper surface on, and be set at least one fixed beam 430, be parallel to each other and gap setting.
It is to be appreciated that each support member 470 can only support a fixed beam 430, multiple fixations can be also supported simultaneously Rod member 430, or even all fixed beams 430, specifically can be depending on reality.Generally, the hole shape and size of each supported hole 471 It is adapted respectively with the profile and size of each fixed beam 430, and the uniform word row in 470 follows track of each support member, 10 directions Open.Preferably, in the present embodiment, as shown in figure 5, fixed beam 430 is provided with two and is in quadrangle rod member, accordingly, respectively Two supported holes 471 side by side are offered on support member 470.
As shown in Figure 1 and Figure 5, further to improve the reliability of second level buffer 400, in fixed platform 200, The rear end of each fixed beam 430 is provided with block 480, to give each fixed beam 430 simultaneously with support force from front, so, It can ensure that the stress balance of second level buffer 400 will not run-off the straight to a certain extent.
By upper, combined type provided by the utility model is kept off a car energy absorber, compared with prior art, mainly with it is following some Characteristic:
(1) combined type energy absorber of keeping off a car can design according to the standard of respective country, and in China, it can ensure operation speed The vehicles such as the subway train within spending for 25km/h in case of emergency emergency, will not derail;
(2) combined type energy absorber of keeping off a car uses multiple step format energy management, is delayed by first order buffer 300 and the second level The Impact energy that device 400 absorbs moving object 30 step by step is rushed, generally energy-absorbing is big, stroke is short, space is small, in light weight And cost is low, because general structure is arranged symmetrically installation, thus uniform force will not be offset in whole work process, in addition, Anti-creep part 500 is set in the leading portion of first order buffer 300 so that combined type energy absorber of keeping off a car also has anti-creep function, always It, combined type energy absorber of keeping off a car compensate for the deficiency of existing car lug on domestic market;
(3) as shown in figure 11, inhaled for the combined type static compress of metal beehive energy-absorbing block assembly 460 in energy absorber of keeping off a car Can curve map (that is, static compress force-displacement curve figure);As shown in figure 12, kept off a car metal honeybee in energy absorber for the combined type The dynamic compression energy absorption curve figure (that is, dynamic compression force-displacement curve figure) that nest energy-absorbing block assembly 460 tests out, from this two It can be learnt in figure, the peak force for the metal beehive energy-absorbing block assembly 460 that the combined type is kept off a car in energy absorber is smaller, substantially peaceful Equal crushing force is consistent, and stability bandwidth is smaller, and whole endergonic process is more steady, compared to other forms power-absorbing have it is very big excellent Gesture.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model.For this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within right of the present utility model.

Claims (10)

  1. The energy absorber 1. combined type is kept off a car, the moving object to stop on guide rail continue to run with, it is characterised in that:Including slide rail and The fixed platform of the end of the guide rail is connected to, the slide rail is located on the guide rail and simultaneously whereabouts can be slided along the guide rail In the fixed platform;
    The combined type keeps off a car energy absorber also including can individually be inhaled when the moving object speed of service is less than pre-set velocity Receive the first order buffer of the Impact energy of the moving object and when the moving object speed of service is more than or equal to described The second level buffer of the Impact energy of the moving object can be absorbed during pre-set velocity jointly with the first order buffer;
    The first order buffer has abutment end and buffering end, and the second level buffer has telescopic end and fixing end, institute The abutment end for stating first order buffer stretches out the slide rail to be abutted with the moving object, and the buffering end is located at described On slide rail;The telescopic end of the second level buffer is on the slide rail and can be stretched relative to the fixing end with connection Move the slide rail to move forward and backward with the guide rail, the fixing end is in the fixed platform.
  2. The energy absorber 2. combined type as claimed in claim 1 is kept off a car, it is characterised in that:The first order buffer includes at least one Individual piston rod, hanging buffer front stall, it is at least one can make corresponding to the piston rod while the buffer front stall that links The elastic device moved forward and backward along the guide rail and the first loading tool part on the slide rail;The one of each piston rod On the rear end face of the buffer front stall, the other end is located on the corresponding elastic device at end;The first loading work Each elastic device is connected with the front end face of piece installing, the described flexible of the second level buffer is connected with rear end face End.
  3. The energy absorber 3. combined type as claimed in claim 2 is kept off a car, it is characterised in that:Each elastic device includes cylinder body, institute The one end for stating cylinder body is inserted with the corresponding piston rod, and the other end is on the described first loading tool part, and each cylinder The bolster made of elastomeric material is filled with vivo, and frock is loaded relative to described first with the corresponding piston rod that links Part is elastic.
  4. The energy absorber 4. combined type as claimed in claim 3 is kept off a car, it is characterised in that:Each piston rod is relative to the guide rail Center line symmetrical setting, and be parallel to each other with the guide rail.
  5. The energy absorber 5. combined type as claimed in claim 4 is kept off a car, it is characterised in that:The piston rod is provided with two, the cylinder Body is provided with two, and the center line of the center line of each piston rod and the corresponding cylinder body is on the same line.
  6. The energy absorber 6. combined type as claimed in claim 2 is kept off a car, it is characterised in that:Combined type energy absorber of keeping off a car also includes At least one anti-creep part, each anti-creep part is on the front end face of the buffer front stall, and relative to the guide rail Center line symmetrical setting.
  7. The energy absorber 7. combined type as described in any one of claim 1 to 6 is kept off a car, it is characterised in that:The slide rail is slided for K-type Rail.
  8. The energy absorber 8. combined type as described in any one of claim 1 to 6 is kept off a car, it is characterised in that:The second level buffer Including at least one fixed beam and at least one linkage slide rail with the first cavity being located in the fixed platform The telescoping rod with the second cavity;Metal beehive is filled with each first cavity and/or in each second cavity Energy-absorbing block assembly, one end of each telescoping rod are connected with the first order buffer, the other end and the corresponding fixation Rod member is mutually inserted so that the speed of service of the moving object is more than or equal to each telescoping rod during the pre-set velocity Relative to the corresponding fixed beam movement with the metal beehive energy-absorbing block assembly corresponding to compressing.
  9. The energy absorber 9. combined type as claimed in claim 8 is kept off a car, it is characterised in that:The second level buffer is also included at least One support member being disposed longitudinally on the upper surface of the fixed platform, each support member are set at least one described solid On fixed pole part, it is parallel to each other and gap setting;Combined type energy absorber of keeping off a car also includes each telescoping rod to be set Put in the fixed platform and load tool part with the second of each telescoping rod relative movement.
  10. The energy absorber 10. combined type as claimed in claim 8 is kept off a car, it is characterised in that:Each fixed beam is led along described The center line of rail is arranged symmetrically, and is parallel to each other with the guide rail.
CN201720729949.4U 2017-06-21 2017-06-21 Combined type is kept off a car energy absorber Active CN206926655U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108909765A (en) * 2018-06-22 2018-11-30 中车青岛四方机车车辆股份有限公司 Anti-climbing energy-absorbing device and rail vehicle with it
CN108909764A (en) * 2018-06-22 2018-11-30 中车青岛四方机车车辆股份有限公司 Anti-climbing energy-absorbing device and rail vehicle with it

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108909765A (en) * 2018-06-22 2018-11-30 中车青岛四方机车车辆股份有限公司 Anti-climbing energy-absorbing device and rail vehicle with it
CN108909764A (en) * 2018-06-22 2018-11-30 中车青岛四方机车车辆股份有限公司 Anti-climbing energy-absorbing device and rail vehicle with it

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