CN109367562A - A kind of combined orbit vehicle energy-absorbing anti-creeper - Google Patents

A kind of combined orbit vehicle energy-absorbing anti-creeper Download PDF

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Publication number
CN109367562A
CN109367562A CN201811447194.4A CN201811447194A CN109367562A CN 109367562 A CN109367562 A CN 109367562A CN 201811447194 A CN201811447194 A CN 201811447194A CN 109367562 A CN109367562 A CN 109367562A
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CN
China
Prior art keywords
cylinder body
piston rod
cutting tool
flange
cutting
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Granted
Application number
CN201811447194.4A
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Chinese (zh)
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CN109367562B (en
Inventor
彭勇
邓功勋
王世明
许平
姚曙光
陈璇臻
刘志强
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Central South University
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Central South University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F19/00Wheel guards; Bumpers; Obstruction removers or the like
    • B61F19/04Bumpers or like collision guards

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention discloses a kind of combined orbit vehicle energy-absorbing anti-creepers, including piston rod, cylinder body, flange and cooling tube, coolant liquid is provided in cylinder body, one end of cylinder body and the side of flange connect, the pilot hole slipped with piston rod is provided on the flange, the end of piston rod is provided with the piston slipped with inboard wall of cylinder block, and the other side of flange is equipped with cutting tool, cutting tool extends in the guide groove on piston rod, cooling tube out of cylinder body one-way conduction to cutting tool installation site.The present invention is by way of the cooling cutter of coolant liquid, reduce the probability that cutter melts in cutting process, improve the reliability of cutting tool, simultaneously because the cutting portion after cutting pushes the intracorporal coolant liquid of piston press cylinder, so that part kinetic energy when train collides is converted into the kinetic energy and pressure energy of coolant liquid, the fracture probability of cutter is reduced.

Description

A kind of combined orbit vehicle energy-absorbing anti-creeper
Technical field
The present invention relates to rail traffic buffering energy-absorbing field more particularly to a kind of combined orbit vehicle energy-absorbing anti-creepers.
Background technique
With the fast development of track transportation industry, while improving train active safety, rail vehicle it is passive Security performance is also increasingly taken seriously.Great acceleration pulse can be generated when the speed of train collision is higher, lead to train The serious breakoff phenomenon such as arch upward, climb vehicle, overturning, makes to bump against vehicle moderate finite deformation occurs, and passenger's living space subtracts significantly It is small.To reduce train collision accident to the destruction of car body and the injury of occupant, usually installed in the limited space in train both ends Big energy absorption, efficient anticreeper.
Currently used cutting, planing, broaching formula energy-absorbing anti-creeper have the disadvantage that (1) requires sternly processing technology Lattice, chip being cut part is to the more demanding of cutter;(2) temperature is higher when Tool in Cutting chip being cut part, causes cutter to melt phenomenon tight Weight, Tool Reliability are poor;(3) initial cuts process impact force is larger, and cutter easily snaps off;(4) steady cutting process exists Certain wave phenomenon, anticreeper anti-bias load performance are poor.
Summary of the invention
It is an object of that present invention to provide a kind of combined orbit vehicle energy-absorbing anti-creepers, to solve the above problems.
To achieve the above object, the invention discloses a kind of combined orbit vehicle energy-absorbing anti-creepers, including piston rod, cylinder Body, flange and cooling tube are provided with coolant liquid in the cylinder body, and one end of the cylinder body is connect with the side of the flange, should The pilot hole slipped with the piston rod is provided on flange, the end of the piston rod is provided with sliding with the inboard wall of cylinder block Piston, the other side of the flange is equipped with the cutting tool for cutting the piston rod, and the cutting tool extends to described In guide groove on piston rod, the cooling tube out of described cylinder body one-way conduction to the cutting tool installation site.
Further, the cooling tube is connected in the end far from the flange with the cylinder body.
Check valve is installed, one end of the cooling tube is connect with the check valve, the other end on the wall surface of the cylinder body It is arranged towards the point of a knife of the cutting tool.
Further, guide groove is provided on the piston rod, the cutting tool extends in the guide groove, along In the cutting direction of the cutting tool, one section of the location interval to be cut of the point of a knife of the cutting tool and the piston rod away from From so that the cutting tool starts to cut after coolant liquid ejection.
Further, the piston rod is provided with anti-climbing tooth far from the other end of piston.
Further, the piston rod is the hollow rod structure of inner hollow.
Further, the other end of the cylinder body is fixed in a mounting seat, and installation is provided in the mounting seat Hole.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention is reduced the probability that cutter melts in cutting process, is improved by way of the cooling cutter of coolant liquid The reliability of cutting tool, simultaneously because the cutting portion after cutting pushes the intracorporal coolant liquid of piston press cylinder, so that train Part kinetic energy when colliding is converted into the kinetic energy and pressure energy of coolant liquid, reduces the shock loading of initial cuts process, The steady progress that ensure that cutting process, reduces the fracture probability of cutter.Metal parts after cutting simultaneously becomes piston Bar enters cylinder interior, improves the anti-bias load of cutting type energy absorption device, ensure that the Impact Resisting Capability of rail vehicle.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of combined orbit vehicle energy-absorbing anti-creeper disclosed by the embodiments of the present invention;
Fig. 2 is the decomposition texture schematic diagram of combined orbit vehicle energy-absorbing anti-creeper disclosed by the embodiments of the present invention;
Fig. 3 is anti-creep teeth portion part structural schematic diagram disclosed by the embodiments of the present invention;
Fig. 4 is anti-creep teeth portion part cross-sectional view disclosed by the embodiments of the present invention;
Fig. 5 is flange assembly first structure diagram disclosed by the embodiments of the present invention;
Fig. 6 is the second structural schematic diagram of flange assembly disclosed by the embodiments of the present invention;
Fig. 7 is hydraulic cylinder structural schematic diagram disclosed by the embodiments of the present invention.
Marginal data:
1, anti-creep teeth portion part;11, anti-climbing tooth;12, piston rod;13, guide groove;14, piston;15, fillister joint;
2, flange assembly;21, flange;22, cutting tool;23, Cutting tool installation manner groove;24, pilot hole;
3, cooling tube;
4, part of cylinder block;41, cylinder body;42, flange base bolt hole;43, flange base;44, check valve;
5, mounting seat;51, mounting base;52, mounting hole.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims Implement with the multitude of different ways of covering.
As shown in Fig. 1-Fig. 7, the invention discloses a kind of combined orbit vehicle energy-absorbing anti-creepers, mainly by anti-creep teeth portion Part 1, flange assembly 2, cooling tube 3, part of cylinder block 4 and mounting seat 5, wherein anti-creep teeth portion part 1 includes anti-climbing tooth 11, piston Bar 12 and piston 14 form, for installing the mounting hole 52 of bolt there are four circumference uniform distributions on the mounting base 51 of mounting seat 5, Entire anticreeper is linked together by mounting hole 52 with floor underframe for vehicle.Wherein, anti-climbing tooth 11 and piston 14 are arranged in piston rod 12 both ends, anti-climbing tooth 11 are set on a metal plate, and anti-climbing tooth 11 is 4 side by side, in the present embodiment, entire anti-in order to mitigate The weight of device is climbed, piston rod 12 is designed as the hollow rod structure of inner hollow.Piston rod 12 is component to be cut, the work simultaneously Guide groove 13 is provided on the wall surface of stopper rod 12.Mounting seat 5 and flange assembly 2 are sealingly mounted at the both ends of part of cylinder block 4, In, part of cylinder block 4 includes a cylinder body 41, and coolant liquid has been continuously-filled in cylinder body 41, and one end of cylinder body 41 passes through mounting seat 5 Sealing, the other end are connected with a flange base 43, flange base bolt hole 42 are provided on flange base 43, to pass through bolt Flange assembly 2 and the sealing of part of cylinder block 4 are installed.Flange assembly 2 includes flange 21 and cutting tool 22, and the center of flange 21 is set It is equipped with a pilot hole 24, the radius size of flange 21 is the same with the radius size of cylinder body flange base 43.Pilot hole 24 and piston 14 size is identical.When train crashes, pilot hole 24 can guarantee that piston 14 is stable and transport to 5 direction of mounting seat It is dynamic, so that cutting endergonic process is more steady, improve the stability and anti-bias load of anticreeper device.
In the present embodiment, flange 21 along the circumferential edge setting of pilot hole 24 there are four Cutting tool installation manner groove 23, cutter Cutting tool 22 is installed with screw fastening in mounting groove 23, the point of a knife of cutting tool 22 extends to the center of pilot hole 24, When specific cooperation, piston rod 12 and the sealing of pilot hole 24 are sliding, and the point of a knife of cutting tool 22 is inserted into guide groove 13, and is lived Plug 14 then slips in cylinder body 41, and wherein guide groove 13 is located at the top of piston 14,
Meanwhile cylinder body 41 is equipped with check valve 44 far from the end of flange 21, check valve 44 is along the circumferential equal of cylinder body 41 Cloth is four, is corresponded with cutting tool 22, one end of cooling tube 3 is connect with the check valve 44 on 41 wall surface of cylinder body, another End extends to the position of tool tip of cutting tool 22, and wherein 44, check valve allow to be connected from the interior of cylinder body 41.Work as column When vehicle collides, the anti-climbing tooth 11 between two vehicles is mutually twisted, contacts, and the response of piston 14 of 12 end of piston rod starts to squeeze Coolant liquid in cylinder body 41 is under the effect of the pressure opened the check valve 44 on the side wall for making cylinder body 41, so that coolant liquid Cutting tool 22 is sprayed to from cooling tube 3 rapidly, then, cutting tool 22 can steadily cut the metal on piston rod 12, Piston rod 12 continues to move to the bottom of cylinder body 41 after cutting, to reduce cutting tool 22 in cutting buffering energy-absorbing process In temperature, reduce cutting tool 22 and melt knife probability, and part of cylinder block 4 not only acts as the effect of hydraulic cushion energy-absorbing, simultaneously Effective cooling to cutting tool 22 can also be completed, is efficiency hydraulic cushion energy-absorbing and cutting energy-absorbing to be combined into one, increase While rate, moreover it is possible to it is cooling to cutting energy-absorbing position in time, prevent the generation for melting knife, realizes the remarkable result of " 1+1 > 2 ".
The size of 13 end of guide groove matches with cutting tool 22, and specifically when setting, cutting tool 22 is in Cutting tool installation manner The length of prominent pilot hole 24 is equal to the depth of guide groove 13 on slot 23, and the width of cutting tool 22 is equal to or slightly less than guide groove Transition or lesser interference fit are used between 13 width, i.e. cutting tool 22 and guide groove 13, it is ensured that cutting tool 22 When cutting piston rod 12, steadily cuts along longitudinal direction, improve the stability of device.The setting of guide groove 13 can prevent bite It is excessive and be broken to have 22 unexpected stress, ensure that the cutting direction and four of cutting process the stress balance of cutting tool 22, drop The low vibration of anticreeper during the cutting process, improves the stability of device.
At the same time, when being collided due to train, the squeezing action of piston 14, the coolant liquid in cylinder body 41 is squeezed It is flowed out from check valve 44, and then during spraying to cutting tool 22 by cooling tube 3, mechanical energy a part of collision is converted into Cutting tool 22 cuts the cutting energy and thermal energy that piston rod 12 generates, the kinetic energy and pressure that another part then converts for coolant liquid Can, collective effect complements each other, and when the effect of improving buffering energy-absorbing, also protects cutting tool 22.
In the present embodiment, there are certain vibration when being operated normally due to train, check valve 44 can guarantee that train is normal When operation, coolant liquid will not spill into cooling tube 3 from cylinder body 41.Only when train crashes, check valve 44 exists It can just be opened when reaching pressure threshold under hydraulic action, so that coolant liquid sprays to cutting tool 22 from cooling tube 3, pressure at this time Threshold also functions to the effectiveness of similar damping hole buffering energy-absorbing with cooling tube 3 simultaneously.
Meanwhile in order to reduce the shock loading of initial cuts process, guarantee the steady progress of cutting process, along bite In the cutting direction of tool 22, the point of a knife of cutting tool 22 and location interval a distance to be cut of piston rod 12, i.e. piston rod After 12 will run a distance to mounting seat 5, the point of a knife of cutting tool 22 can just encounter the metal with cutting on piston rod 12, To make cutting tool 22 start cutwork after coolant liquid ejection, the impact for reducing initial cuts process in this way is carried Lotus, while also preferably protecting cutting tool 22.
In the present embodiment, the two sides of guide groove 13 are provided with fillister joint 15, and fillister joint 15 is cut along cutting tool 22 Cut direction extension, i.e., fillister joint 15 along the two sides of guide groove 13 towards the circumferentially extending of piston rod 12, thus can guarantee cutter When cutting, the metal specified along specified path cut only cuts the metal between two confronting grooves seams 15, to make to cut It is more controllable to cut process.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification, Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (7)

1. a kind of combined orbit vehicle energy-absorbing anti-creeper, which is characterized in that including piston rod (12), cylinder body (41), flange (21) and cooling tube (3) coolant liquid, is provided in the cylinder body (41), one end of the cylinder body (41) and the flange (21) Side connects, and the pilot hole (24) slipped with the piston rod (12) is provided on the flange (21), the piston rod (12) End is provided with the piston (14) slipped with the cylinder body (41) inner wall, and the other side of the flange (21) is equipped with described in cutting The cutting tool (22) of piston rod (12), the cooling tube (3) is from the cylinder body (41) interior one-way conduction to the cutting tool (22) installation site.
2. combined orbit vehicle energy-absorbing anti-creeper according to claim 1, which is characterized in that the cooling tube (3) exists End far from the flange (21) is connected to the cylinder body (41).
3. combined orbit vehicle energy-absorbing anti-creeper according to claim 2, which is characterized in that the wall of the cylinder body (41) It is equipped on face check valve (44), one end of the cooling tube (3) is connect with the check valve (44), and the other end is cut described in The point of a knife of cutting knife tool (22) is arranged.
4. combined orbit vehicle energy-absorbing anti-creeper according to claim 1 to 3, which is characterized in that the piston rod (12) it is provided on guide groove (13), the cutting tool (22) extends in the guide groove (13), along the bite In the cutting direction for having (22), one section of location interval to be cut of the point of a knife of the cutting tool (22) and the piston rod (12) Distance, so that the cutting tool (22) starts to cut after coolant liquid ejection.
5. combined orbit vehicle energy-absorbing anti-creeper according to claim 4, which is characterized in that the piston rod (12) is remote The other end from piston (14) is provided with anti-climbing tooth (11).
6. combined orbit vehicle energy-absorbing anti-creeper according to claim 5, which is characterized in that the piston rod (12) is The hollow rod structure of inner hollow.
7. combined orbit vehicle energy-absorbing anti-creeper according to claim 6, which is characterized in that the cylinder body (41) it is another One end is fixed on a mounting seat (5), is provided with mounting hole (52) on the mounting seat (5).
CN201811447194.4A 2018-11-29 2018-11-29 Combined type energy-absorbing anti-creeper for railway vehicle Active CN109367562B (en)

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Application Number Priority Date Filing Date Title
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