CN104787078A - Combined type rail transit vehicle anti-creeper - Google Patents
Combined type rail transit vehicle anti-creeper Download PDFInfo
- Publication number
- CN104787078A CN104787078A CN201510191469.2A CN201510191469A CN104787078A CN 104787078 A CN104787078 A CN 104787078A CN 201510191469 A CN201510191469 A CN 201510191469A CN 104787078 A CN104787078 A CN 104787078A
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- Prior art keywords
- creeper
- cutting
- vehicular traffic
- flange assembly
- flange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/04—Bumpers or like collision guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Sawing (AREA)
Abstract
The invention discloses a combined type rail transit vehicle anti-creeper. The combined type rail transit vehicle anti-creeper comprises a base structure fixedly connected with a vehicle body chassis, a flange assembly fixedly arranged on the base structure, and a sleeve component serving as a resistance structure. The flange assembly comprises a flange device used for reducing the sleeve component. A guiding hole used for guiding the sleeve component is formed in the center of the flange device. Cutters used for cutting the sleeve component are arranged on the periphery of the guiding hole. A reducing port used for reducing the cut sleeve component is formed below the guiding hole. Due to the fact that the cutters and the reducing port are simultaneously formed in the flange assembly, on the premise of not reducing the energy absorption capability, the combined type rail transit vehicle anti-creeper effectively reduces the cutting depths and reducing amount of the cutters, enables the cutting amount and the reducing amount of the cutters to be reasonably distributed, reduces the occurrence probability of a bending phenomenon caused by cutter blade breakage or cutter breakage and the excessive reducing amount of a sleeve, improves equipment reliability and prolongs the service life.
Description
Technical field
The present invention relates to technical field of rail traffic, in particular a kind of combined orbit vehicular traffic anti-creeper.
Background technology
Along with the fast development of track traffic, the harm that people's trip traffic accident more simultaneously causes is also increasing, and while raising ACTIVE CONTROL reliability, passive security protection also more and more comes into one's own.Tradition cutting type anti-creeper only carries out cuttings energy-absorbing by outer lathe tool usually, and thickness of cutting is greatly, high to the material of cutting knife, geometric accuracy, cutting depth requirement, often occurs the situation that cutting knife ruptures comparatively greatly, cause energy absorber to lose efficacy at cutting depth.There is following shortcoming in existing anti-creeper: 1, cutting depth is large, and hilted broadsword is greatly stressed; 2, starting stage impact load is large, cutting knife easy fracture; 3, steadily cut stage load fluctuation large, protected device vibration is large; 4, cut-off is large, necking down difficulty; 5, initial energy-absorbing stage impact load is large, and steady energy-absorbing stage load fluctuation is large.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of combined orbit vehicular traffic anti-creeper, decrease the probability of cutter tipping or handle of a knife fracture, improve the reliability of cutter, guarantee that cutting endergonic process can carry out by complete actv.; Cut-off reduces necking down is more easily carried out simultaneously, avoids sleeve pipe to occur flexing phenomenon.。
Technical scheme of the present invention is as follows:
A kind of combined orbit vehicular traffic anti-creeper, comprises the understructure be fixedly connected with vehicle body bottom frame, is fixedly installed on the flange assembly on described understructure, and as the sleeve part of resistance structure;
Described flange assembly comprises one for the flange apparatus by described sleeve part undergauge, described flange apparatus center has the pilot hole for the described sleeve part that leads, being provided with the cutting knife for cutting described sleeve part along described pilot hole periphery, being provided with for the necking by the sleeve part undergauge after cutting below described pilot hole;
Described sleeve assembly comprises a resistance part, and one end, described resistance part is provided with the cylinder header structure suitable with described necking, and the described resistance part other end is provided with anti-climbing tooth.
Described combined orbit vehicular traffic anti-creeper, wherein, described flange apparatus is the flange apparatus combined by two semi-circular flange.
Described combined orbit vehicular traffic anti-creeper, wherein, described necking comprises for the reducing diameter part by the sleeve part undergauge after cutting, is provided with the guide part for sleeve part after necking down of leading below described reducing diameter part.
Described combined orbit vehicular traffic anti-creeper, wherein, understructure comprises the lower bottom base for locating described flange assembly, and described lower bottom base is provided with the upper bed-plate for supporting described flange assembly.
Described combined orbit vehicular traffic anti-creeper, wherein, described lower bottom base is connected by positioning guide column with described upper bed-plate, and described upper bed-plate and described lower bottom base are equipped with through hole.
Described combined orbit vehicular traffic anti-creeper, wherein, described flange assembly is provided with adopt and be screwed four for cutting the cutting knife of described sleeve part.
Described combined orbit vehicular traffic anti-creeper, wherein, the diameter length of described pilot hole equals the outer diameter length of sleeve part resistance part.
Described combined orbit vehicular traffic anti-creeper, wherein, is provided with the fixed orifice for being fixed on by described flange assembly on understructure bottom described flange assembly.
Described combined orbit vehicular traffic anti-creeper, wherein, described resistance part is also provided with the guide groove cut for the cutting knife that leads.
Described combined orbit vehicular traffic anti-creeper, wherein, the length that pilot hole given prominence to by described cutting knife equals the degree of depth of guide groove.
Combined orbit vehicular traffic anti-creeper provided by the present invention; by flange assembly arranges cutting knife and necking simultaneously; under the prerequisite not reducing energy absorption ability; the cutting depth of effective each cutting knife of reduction and cut-off; the cutting data of reasonable distribution cutter and cut-off; reduce the flexing phenomenon odds that cutter tipping or fracture and sleeve pipe cause because cut-off is excessive; improve equipment dependability and service life; guarantee that equipment can complete the task of energy-absorbing, the safety of life and property of protection passenger.
Accompanying drawing explanation
Fig. 1 is the perspective view of combined orbit vehicular traffic anti-creeper in the present invention.
Fig. 2 is the exploded perspective view of combined orbit vehicular traffic anti-creeper in the present invention.
Fig. 3 is the structural representation of the sleeve part of combined orbit vehicular traffic anti-creeper in the present invention.
Fig. 4 is the cutaway view of the sleeve part of combined orbit vehicular traffic anti-creeper in the present invention.
Fig. 5 is the structural representation of the flange assembly of combined orbit vehicular traffic anti-creeper in the present invention.
Fig. 6 is the structural representation of the flange apparatus of combined orbit vehicular traffic anti-creeper in the present invention.
Fig. 7 is the structural representation of the understructure of combined orbit vehicular traffic anti-creeper in the present invention.
Fig. 8 is the cutaway view of combined orbit vehicular traffic anti-creeper in the present invention.
In figure: 1, sleeve part; 2, flange assembly; 3, understructure; 11, anti-climbing tooth; 12, resistance part; 13, guide groove; 14, cylinder header structure; 21, pilot hole; 22, cutting knife; 23, flange apparatus; 24, cutting knife groove; 25, necking; 26, reducing diameter part; 27, guide part; 31, upper bed-plate; 32, guidepost; 33, lower bottom base; 34, through hole.
Detailed description of the invention
The invention provides a kind of combined orbit vehicular traffic anti-creeper, for making object of the present invention, technical scheme and effect clearly, clearly, referring to accompanying drawing examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to shown in Fig. 2 and Fig. 8, combined orbit vehicular traffic anti-creeper provided by the invention, when guideway vehicle collides, cutting knife cuts the metal acting of sleeve part, be cutting energy and heat energy by the kinetic transformation of train, sleeve undergauge cutting will through by the necking of flange assembly simultaneously, be metal elastic plastic deformation ability and heat energy by the kinetic transformation of train, two kinds of energy-absorbing mode cooperatings, reduce the cutting depth of each cutter, thus decrease the probability of cutter tipping or handle of a knife fracture, improve the reliability of cutter, guarantee that cutting endergonic process can carry out by complete actv., cut-off reduces necking down is more easily carried out simultaneously, sleeve pipe is avoided to occur flexing phenomenon.
As shown in Figure 1, combined orbit vehicular traffic anti-creeper provided by the present invention, comprises the understructure 3 be fixedly connected with vehicle body bottom frame, is fixedly installed on the flange assembly 2 on described understructure, and as the sleeve part 1 of resistance structure.Shown in Fig. 5 and Fig. 6, acting parts mainly comprise cutting knife 22 on flange assembly 2 and necking 25, and cutting knife 22 is fixed by screws in the stage property groove of flange apparatus 23, and necking 25 is arranged on below flange apparatus 23 pilot hole 21; During work, cutting knife 22, by cutting the steel pipe (resistance part 12) of sleeve part 1, changes the impact energy of train into cutting energy and heat energy, thus conversion of energy; Reducing diameter part 26 points is by being reduced by flange end bore, and extruding steel pipe, makes steel pipe generation undergauge, impact energy is changed into the deformation energy of steel pipe and heat energy to absorb energy by the distortion of steel pipe.
Concrete, as shown in Figure 5, described flange assembly 2 comprises one for the flange apparatus 23 by described sleeve part 1 undergauge, and described flange apparatus 23 can be an integrally-built flange, and described flange decoration also can be the flange apparatus 23 combined by two semi-circular flange.Namely the flange apparatus 23 in the present invention is fixed on understructure 3, Ifold flange is used not affect the location of flange apparatus 23, adopt disassembled flange apparatus 23 to be more conducive to frock, especially sleeve part 1 is put into flange apparatus 23 inner time more for convenience.
Described flange apparatus 23 pairs of sleeve parts 1 have directional tagging, described flange assembly 23 have four cutting knife grooves 24, arrange a cutting knife 22 adopting high strength bolt fixing in each cutting knife groove 24.As shown in Figure 5 and Figure 6, the present invention has the pilot hole 21 for the described sleeve part 1 that leads at flange apparatus 23 center, described pilot hole 21 can lead described sleeve part 1 along the reach of pilot hole 21 direction when sleeve part 1 is subject to clashing into, concrete described pilot hole 21 is for the resistance part 12 of the described sleeve part 1 that leads.Be provided with the cutting knife 22 for cutting described sleeve part 1 along described pilot hole 21 periphery, described cutting knife 22 cuts sleeve part 1 in sleeve part 1 reach process, train momentum is converted into cutting energy and heat energy.Be provided with for the necking 25 by sleeve part 1 undergauge after cutting below described pilot hole 21, described necking 25 moves forward at sleeve part 1 and undergauge process is carried out in the resistance part 12 of sleeve part 1 after being cut by cutting knife 22, makes the kinetic transformation of train be metal elastic plastic deformation ability and heat energy.In conjunction with cutting energy, metal elastic plastic degeneration can and heat energy by after the kinetic energy successful conversion of train, reduce the speed of train and impulsive force, ensure train apparatus and personnel injury-free.
Further, as shown in Figure 3 and Figure 4, described sleeve assembly comprises a resistance part 12, and described resistance part 12 is a cylinder metal column, can be cutting energy, metal elastic plastics characteristic and heat energy in conjunction with cutting knife 22 and necking 25 by kinetic transformation.One end, described resistance part 12 is provided with the cylinder header structure 14 suitable with described necking 25, after described cylinder header structure 14 i.e. resistance part 12 end thickness is thinning after cutting and in addition bending edges, make the necking 25 of described bending edges and flange assembly 2 suitable, the degree of precision of installing sleeve parts 1 and flange assembly 2 can be improved like this, ensure that sleeve part 1 can move linearly after stressed, can not because of stressed excessive and bend.Can described sleeve part 1 be welded on flange assembly 2 during concrete fixed sleeve part 1, ensure that bending edges and flange assembly 2 are close to.
Described resistance part 12 other end is provided with anti-climbing tooth 11 in addition.Specifically, described resistance part 12 other end is provided with a metal sheet, and described metal sheet is provided with four anti-climbing teeth 11.During use, train head installs the anti-creeper described in the present invention respectively, when two headstocks bump against, anti-climbing tooth 11 on two groups of anti-creepers is mutually engaged, contacts, after anti-climbing tooth 11 is accurately fitted, ensure the reach of sleeve part 1 straight line, improve the reliability of anti-creep device.Described anti-climbing tooth 11 is provided with four projections, and described raised brim is provided with arc trimming; Certain anti-climbing tooth 11 that can be set to the projection with rectangular block shape as another the anti-climbing tooth 11 be engaged with the anti-climbing tooth 11 with projection.During work, two groups of anti-climbing teeth 11 are engaged, effectively can reduce the fluctuation of device in working angles, the reliability of bont.
Further, as shown in Figure 3 and Figure 5, described resistance part 12 is also provided with the guide groove 13 cut for the cutting knife 22 that leads.The guide groove 13 that resistance part 12 is arranged can prevent that cutting knife 22 is unexpected stressedly excessively to rupture.Four cutting knifes 22 on four guide grooves 13 difference companion flange assemblies 2 are set uniformly in the specific embodiment of the invention outside resistance part 12, resistance part 12 stress balance when guide groove 13 not only can ensure that cutting knife 22 direction of cut can also ensure that cutting knife 22 cuts.The width of described guide groove 13 is a bit larger tham the width of cutting knife 22, and the length that the pilot hole 21 of flange assembly 2 given prominence to by cutting knife 22 equals the degree of depth of described guide groove 13, thus reduces the fluctuation of anti-creeper in working angles, improves the reliability of device.
Further, as shown in Figure 7, in the present invention, understructure 3 comprises the lower bottom base 33 for locating described flange assembly 2, and described lower bottom base is provided with the upper bed-plate 31 for supporting described flange assembly 2.Described lower bottom base 33 is connected by positioning guide column 32 again with described upper bed-plate 31.Namely lower bottom base 33 be arranged on the upper bed-plate 31 that lower bottom base 33 is put and be connected by positioning guide column 32, described upper bed-plate 31 bottom is provided with in the pilot hole 21(figure for connecting positioning guide column 32 and does not mark).Lower bottom base 33 adopts four guideposts 32 to connect upper bed-plate 31, and flange assembly 2 is fixed by bolt of rear end plate again by upper bed-plate 31, increases the stability of lower bottom base 33 and flange assembly 2.
In addition described upper bed-plate 31 and described lower bottom base 33 are equipped with through hole 34.Namely described lower bottom base 33 center is provided with a through hole 34 for sleeve part 1 undergauge after continued move forward corresponding with the pilot hole 21 of flange assembly 2; The through hole 34 that upper bed-plate 31 is arranged is for the resistance part 12 of housing sleeve cartridge unit 1.
In the present invention, undergauge acting is completed by the necking 25 arranged in flange assembly 2.As shown in Figure 5 and Figure 6, described necking 25 comprises for the reducing diameter part 26 by sleeve part 1 undergauge after cutting.Undergauge is carried out moving to described reducing diameter part 26 in the resistance part 12 of the sleeve part 1 after cutting.Described reducing diameter part 26 is an angle of inclination the dip plane of 20 ° to 40 °.Be provided with the guide part 27 for sleeve part 1 after necking down of leading below described reducing diameter part 26, this guide part 27 is a circular hole, and its internal diameter is equal with external diameter bottom reducing diameter part 26.
The diameter length of described pilot hole 21 equals the outer diameter length of sleeve part 1 resistance part 12, the outer 2-10mm of outstanding pilot hole 21 that the cutting knife 22 on flange assembly 2 can be arranged, and is also the cutting depth of cutting knife 22.The diameter of pilot hole 21 is arranged equal with the external diameter of sleeve part 1 resistance part 12, ensure that 12, resistance part can receive effective guiding of pilot hole 21, cutting knife 22 evenly cutting resistance portion 12 can also be ensured.Being provided with the fixed orifice for being fixed on by described flange assembly 2 on understructure 3 bottom described flange assembly 2, bolt of rear end plate specifically can be adopted to be fixed on the upper bed-plate 31 of understructure 3 by flange assembly 2.
When the anti-creeper described in assembling the present invention, lower bottom base 33 is connected rear fixing with upper bed-plate 31 by guidepost 32, flange assembly 2 is placed on upper bed-plate 31, fixing after then the resistance part 12 of sleeve part 1 being put into flange assembly 2 inner position, welding manner can be adopted to fix; Be fixed on upper bed-plate 31 after finally adopting bolt of rear end plate to be located by flange assembly 2.
During described anti-creeper work, after anti-creeper on two rail vehicles clashes into mutually, sleeve part 1 moves to lower bottom base 33 direction, described flange assembly 2 is provided with four cutting knifes 22 adopting and be screwed for cutting the resistance part 12 of described sleeve part 1, during cutting, the kinetic transformation of train is the cutting deformation energy of sleeve by cutter, and release large calorimetric, thus consume the huge energy of impact moment, reduce the distortion of railway car.The necking 25 of flange assembly 2 bottom, its diameter of bore is less than resistance part 12 external diameter, and when the resistance part 12 after being cut is through necking 25, external diameter diminishes, and necking down plastoelastic deformation occurs, impact energy is converted into elastoplasticity sex change energy and the heat energy of sleeve pipe.
In sum; this combined orbit vehicular traffic anti-creeper provided by the present invention; by flange assembly 2 arranges cutting knife and necking simultaneously; under the prerequisite not reducing energy absorption ability; the cutting depth of effective each cutting knife of reduction and cut-off; the cutting data of reasonable distribution cutter and cut-off; reduce the flexing phenomenon odds that cutter tipping or fracture and sleeve pipe cause because cut-off is excessive; improve equipment dependability and service life; guarantee that equipment can complete the task of energy-absorbing, the safety of life and property of protection passenger.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and such as, all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. a combined orbit vehicular traffic anti-creeper, is characterized in that, comprises the understructure be fixedly connected with vehicle body bottom frame, is fixedly installed on the flange assembly on described understructure, and as the sleeve part of resistance structure;
Described flange assembly comprises one for the flange apparatus by described sleeve part undergauge, described flange apparatus center has the pilot hole for the described sleeve part that leads, being provided with the cutting knife for cutting described sleeve part along described pilot hole periphery, being provided with for the necking by the sleeve part undergauge after cutting below described pilot hole;
Described sleeve assembly comprises a resistance part, and one end, described resistance part is provided with the cylinder header structure suitable with described necking, and the described resistance part other end is provided with anti-climbing tooth.
2. combined orbit vehicular traffic anti-creeper according to claim 1, is characterized in that, described flange apparatus is the flange apparatus combined by two semi-circular flange.
3. combined orbit vehicular traffic anti-creeper according to claim 1, is characterized in that, described necking comprises for the reducing diameter part by the sleeve part undergauge after cutting, is provided with the guide part for sleeve part after necking down of leading below described reducing diameter part.
4. combined orbit vehicular traffic anti-creeper according to claim 1, is characterized in that, understructure comprises the lower bottom base for locating described flange assembly, and described lower bottom base is provided with the upper bed-plate for supporting described flange assembly.
5. combined orbit vehicular traffic anti-creeper according to claim 4, it is characterized in that, described lower bottom base is connected by positioning guide column with described upper bed-plate, and described upper bed-plate and described lower bottom base are equipped with through hole.
6. combined orbit vehicular traffic anti-creeper according to claim 1, is characterized in that, described flange assembly is provided with adopt and be screwed four for cutting the cutting knife of described sleeve part.
7. combined orbit vehicular traffic anti-creeper according to claim 1, is characterized in that, the diameter length of described pilot hole equals the outer diameter length of sleeve part resistance part.
8. combined orbit vehicular traffic anti-creeper according to claim 1, is characterized in that, is provided with the fixed orifice for being fixed on by described flange assembly on understructure bottom described flange assembly.
9. combined orbit vehicular traffic anti-creeper according to claim 1, is characterized in that, described resistance part is also provided with the guide groove cut for the cutting knife that leads.
10. combined orbit vehicular traffic anti-creeper according to claim 1, is characterized in that, the length that pilot hole given prominence to by described cutting knife equals the degree of depth of guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191469.2A CN104787078B (en) | 2015-04-22 | 2015-04-22 | A kind of combined orbit vehicular traffic anticreeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191469.2A CN104787078B (en) | 2015-04-22 | 2015-04-22 | A kind of combined orbit vehicular traffic anticreeper |
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| Publication Number | Publication Date |
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| CN104787078A true CN104787078A (en) | 2015-07-22 |
| CN104787078B CN104787078B (en) | 2017-08-29 |
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| CN201510191469.2A Active CN104787078B (en) | 2015-04-22 | 2015-04-22 | A kind of combined orbit vehicular traffic anticreeper |
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Cited By (9)
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| CN105438213A (en) * | 2015-12-30 | 2016-03-30 | 深圳市乾行达科技有限公司 | Cutting type anticreeper with guiding pipe |
| CN105438212A (en) * | 2015-12-30 | 2016-03-30 | 深圳市乾行达科技有限公司 | Cutting type anti-creeper |
| CN109017860A (en) * | 2018-08-17 | 2018-12-18 | 中车青岛四方车辆研究所有限公司 | Integrated form crash energy absorption equipment and rail vehicle |
| CN109017861A (en) * | 2018-08-17 | 2018-12-18 | 中车青岛四方车辆研究所有限公司 | Crash energy absorption equipment and rail vehicle |
| CN109367561A (en) * | 2018-11-29 | 2019-02-22 | 中南大学 | A kind of cutting type rail vehicle energy-absorbing anti-creeper |
| CN109367562A (en) * | 2018-11-29 | 2019-02-22 | 中南大学 | A kind of combined orbit vehicle energy-absorbing anti-creeper |
| CN109398403A (en) * | 2018-10-19 | 2019-03-01 | 中南大学 | Radially protuberance deforms energy absorption device and application method, the rail vehicle with it to thin-wall tube |
| CN109686461A (en) * | 2019-01-09 | 2019-04-26 | 中国原子能科学研究院 | A kind of pool low temperature heating reactor control rod guide tubes and bundles structure |
| CN110588702A (en) * | 2019-09-18 | 2019-12-20 | 西南交通大学 | Induced crushing energy-absorbing device of rail vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438213A (en) * | 2015-12-30 | 2016-03-30 | 深圳市乾行达科技有限公司 | Cutting type anticreeper with guiding pipe |
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| CN109017861A (en) * | 2018-08-17 | 2018-12-18 | 中车青岛四方车辆研究所有限公司 | Crash energy absorption equipment and rail vehicle |
| CN109017860A (en) * | 2018-08-17 | 2018-12-18 | 中车青岛四方车辆研究所有限公司 | Integrated form crash energy absorption equipment and rail vehicle |
| CN109398403A (en) * | 2018-10-19 | 2019-03-01 | 中南大学 | Radially protuberance deforms energy absorption device and application method, the rail vehicle with it to thin-wall tube |
| CN109367561A (en) * | 2018-11-29 | 2019-02-22 | 中南大学 | A kind of cutting type rail vehicle energy-absorbing anti-creeper |
| CN109367562A (en) * | 2018-11-29 | 2019-02-22 | 中南大学 | A kind of combined orbit vehicle energy-absorbing anti-creeper |
| CN109367562B (en) * | 2018-11-29 | 2023-11-14 | 中南大学 | Combined type energy-absorbing anti-creeper for railway vehicle |
| CN109367561B (en) * | 2018-11-29 | 2023-11-21 | 中南大学 | Cutting type energy-absorbing anti-creeper for railway vehicle |
| CN109686461A (en) * | 2019-01-09 | 2019-04-26 | 中国原子能科学研究院 | A kind of pool low temperature heating reactor control rod guide tubes and bundles structure |
| CN110588702A (en) * | 2019-09-18 | 2019-12-20 | 西南交通大学 | Induced crushing energy-absorbing device of rail vehicle |
| CN110588702B (en) * | 2019-09-18 | 2024-06-11 | 西南交通大学 | Induced crushing energy absorber of railway vehicle |
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