CN204279485U - Preventing railway train runaway device - Google Patents
Preventing railway train runaway device Download PDFInfo
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- CN204279485U CN204279485U CN201420651788.8U CN201420651788U CN204279485U CN 204279485 U CN204279485 U CN 204279485U CN 201420651788 U CN201420651788 U CN 201420651788U CN 204279485 U CN204279485 U CN 204279485U
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- railway train
- braking rail
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Abstract
The utility model relates to technical field of automatic control, discloses a kind of preventing railway train runaway device, comprises: two braking rail, rod assembly and N number of hold-down arm assemblies, and N is natural number; Wherein, two braking rail are set in parallel in railway, and respectively and between the traveling rail of railway both sides, be preset with the spacing that a section can be held wheel; N number of hold-down arm assembly is arranged between two braking rail and along the length direction of braking rail and arranges, each hold-down arm assembly comprises horizontal bottom girder assembly in two braking rail, and two are symmetricly set on and bottom girder assembly can drive two braking rail to expand outwardly respectively or the sliding-block linkage of inward collapsible simultaneously simultaneously; Rod assembly is arranged between two sliding-block linkages, expands outwardly or simultaneously inward collapsible for driving two sliding-block linkages simultaneously.The utility model can be anti-slip voluntarily, decreases the hidden danger that manual operation brings, and extends the life-span of rail and wheel.
Description
Technical field
The utility model relates to a kind of preventing railway train runaway device, particularly one liftable preventing railway train runaway device.
Background technology
Along with developing rapidly of national economy, railway transportation is faced with new opportunities and challenges, national economy continuous high speed develop development to railway transportation bring good chance.Since entering 21st century, because the establishment of China's Scientific Outlook on Development and science and technology upgrade fast, have higher requirement to railway transportation development.Therefore, setting up a fast, efficient, safe railway scientific development security system, is very necessary to adapt to national economic development needs.
Nearest two during the last ten years, and along with the development of information techenology, computing machine widespread use in railway transportation is produced, rail yard equipment constantly updates transformation, railway transportation technical equipment is had larger change.Safety in production system is tentatively set up, and driving and shunting service accident reduce year by year.
During the last ten years, China railways lorry has completed by the transition of plain bearing to antifriction-bearing box.Facts have proved: this change significantly improves travelled by vehicle performance, not only reduce the generation of hot box accident, but also improve train running speed and trailing weight, advantageously in starting and the operation of train.But, because novel wagon starting resistance reduces, if stoppage of vehicle have certain slope (less than 2.5 ‰) on hair line, add the impact of the extraneous natural environments such as large dust storm, very easily produce vehicle (car team, car group) natural runaway, bring safely larger hidden danger to transport production.Therefore, how to solve prevent (car team, car group) the runaway problem of vehicle on hair line and marshalling yard afterbody wagon running away problem significant, be also simultaneously current very urgent scientific research mission.
At present, the anti-slip measure of China railways station to standing vehicle mainly adopts anti-slip metal shoe.Anti-slip metal shoe is formed primarily of two parts: bottom and head.Bottom: after sole set foot on by wheel, utilizes head to be blocked by wheel, is that skate and wheel jointly slide and play brake action.Head part toe-cap and baffle plate two parts.So-called skate braking, places skate exactly, the pressure wheel of rolls forward just slides along rail after skate, becomes cliding friction between wheel track from friction of rolling on one or two one steel rails, stops and holds up wheel advance, play brake action.But utilize skate to brake, need during parking manually skate to be placed to wheel place, need when dispatching a car manually skate to be withdrawn rail, therefore, easily there is the hidden trouble that causes and accident because driving human error in this work pattern, and wheel drives skate to slide on rail also to exist the hidden danger of skate abrasion rail and flat wheel tread.
Utility model content
The purpose of this utility model is to provide a kind of preventing railway train runaway device, make it when solving vehicle nature runaway problem for train arrival & leaving line (field) and goods yard loading and unloading track, reduce the hidden danger brought because of manual operation, alleviate the labour intensity of driving personnel; Prevent because the damage brought to rail and wheel braked by skate simultaneously, extend the tenure of use of rail and wheel.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of preventing railway train runaway device, and it comprises: two are set in parallel in the braking rail in railway; Wherein, described two braking rail respectively and the vehicle of described railway both sides travel between rail there is the preset pitch that a section can be held wheel of vehicle;
Described preventing railway train runaway device also comprises: be arranged between two braking rail, and carries out N number of hold-down arm assembly of arranging along the length direction of described braking rail; Wherein, described N is natural number, and each hold-down arm assembly comprises horizontal bottom girder assembly between two braking rail, and two are symmetricly set on and described bottom girder assembly can drive respectively two braking rail outwards carry out the sliding-block linkage expanded or inwardly carry out drawing in simultaneously simultaneously;
Described preventing railway train runaway device also comprises: be arranged between two sliding-block linkages for driving two sliding-block linkages to expand outwardly or the rod assembly of simultaneously inward collapsible simultaneously.
The utility model embodiment in terms of existing technologies, be provided with two braking rail, when vehicle enters braking rail region, two braking rail can expand outwardly extruding wheel, making to produce powerful friction force between braking rail and wheel stops wheel to advance, thus plays the effect of braking anti-runaway.This design, not only save manpower, decrease the potential safety hazard existed because of manual operation, and fundamentally eliminate the hidden danger of skate abrasion rail and flat wheel tread, to improving the service life of rail and extending the tenure of use of wheel, save material significant; Meanwhile, its integral structure is simple, and install comparatively easy, be convenient to maintenance, Applicable scope is wider.
Further, described sliding-block linkage comprises: be positioned at the travelling support on bottom girder assembly, be arranged on the supporting seat for fixing described braking rail on described travelling support, wherein, the bottom of described travelling support is connected with described bottom girder assembly by double link, the second pin jointed end that hinged formation is positioned at the first pin jointed end on described travelling support and is positioned on described bottom girder assembly is carried out at the two ends of described double link respectively with described travelling support and described bottom girder assembly, and the middle part of described double link is one section of main part that can separate described travelling support and described bottom girder assembly, described travelling support can with described first pin jointed end and described second pin jointed end for fulcrum carries out upper and lower circular motion in the length range of described double link main part, described sliding-block linkage also comprises: for the slide block assembly described travelling support and described lateral connecting rod being carried out being hinged.Parallel double side rod structure, can be elevated voluntarily, and resistance of motion is little, watt loss is low, and component wear is few, can extend the service life of this mechanical device.
Further, described travelling support drive described braking rail with described first pin jointed end and described second pin jointed end for fulcrum in the length range of described double link base portion downward circular motion to when being resisted against on described bottom girder assembly, the entirety of described braking rail travels below the upper surface of rail at described vehicle, be conducive to the safe operation of rolling stock.
Further, described preventing railway train runaway device also comprises: carry out being connected for driving described longitudinal tie to carry out the actuating device moved forward and backward along the length direction of described braking rail with described longitudinal tie; Described actuating device comprises: electrical motor, carry out being connected the reductor for reducing described motor main shaft rotating speed with the main shaft of described electrical motor; Wherein, the axis of revolution of described reductor forms the clutch end of described actuating device, the end of described axis of revolution is provided with the ball-screw that the gyroscopic movement of described axis of revolution can be become straight-line motion by, and described axis of revolution is connected with described longitudinal tie by described ball-screw; Described reductor is the turbine worm reducer with turbine and worm screw; The worm screw of described reductor is the axis of revolution of described reductor, and the Cover For A Turbine of described reductor to be located on described motor main shaft and to engage with described worm screw.The both sides of described reductor are respectively equipped with a described preventing railway train runaway device; Further, described ball-screw has two, and is symmetricly set on end and the afterbody of described reductor axis of revolution respectively, and the end of described axis of revolution is connected with the longitudinal tie in two preventing railway train runaway devices respectively by two ball-screws with afterbody.Adopt and make electrical motor Direct driver, there is reliable transmission, the advantage that braking force is stable.
Further, described preventing railway train runaway device also comprises: carry out the control box be connected respectively with the power drives end of described electrical motor and signal control end.Solve same interlocking of signals problem, achieve the synchronous operation of gather route.
Further, the side that rail exercised by the relatively described vehicle of described braking rail is formed and travels guide surface between rail and described braking rail for guiding described wheel of vehicle to enter described vehicle, and the form fit of the curve form of described guide surface and described wheel of vehicle side, entering of wheel can be guided better, carry out anti-slip.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preventing railway train runaway device according to the utility model first embodiment;
Fig. 2 is the structural representation of the sliding-block linkage of preventing railway train runaway device according to the utility model first embodiment;
Fig. 3 is the structural representation of the actuating device of preventing railway train runaway device according to the utility model first embodiment;
Fig. 4 is the structural representation of the electrical motor of preventing railway train runaway device according to the utility model first embodiment and the annexation of power drives end and signal control end;
Fig. 5 is the structural representation of the electrical motor of iron preventing railway train runaway device according to the utility model second embodiment and the annexation of power drives end and signal control end.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, each embodiment of the present utility model is explained in detail.But, persons of ordinary skill in the art may appreciate that in each embodiment of the utility model, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following embodiment and amendment, each claim of the application technical scheme required for protection also can be realized.
First embodiment of the present utility model relates to a kind of preventing railway train runaway device, as shown in Figure 1, comprises: two are set in parallel in the braking rail 1 in railway; Wherein, two braking rail 1 respectively and the vehicle of railway both sides travel between rail there is the preset pitch that a section can be held wheel of vehicle.
Specifically, braking rail 1 relative vehicle exercises the side of rail, formation enters the guide surface 20 between vehicle traveling rail and braking rail for guided vehicle wheel, the curve form of guide surface 20 and the form fit of wheel of vehicle side, and its two ends are provided with guiding port 21, if during braking, braking rail 1 is not at wheel position, the vehicle that runaway occurs can enter anti-skid device by guiding port 21, brake by force, it should be noted that this guide surface 20 is the driving surface of braking rail 1, during car brakeing, for clamping wheel.
Preventing railway train runaway device also comprises: be arranged between two braking rail 1, and carries out N number of hold-down arm assembly 25 of arranging along the length direction of braking rail 1; Wherein, N is natural number, and each hold-down arm assembly 25 comprises horizontal bottom girder assembly 6 (as shown in Figure 2) between two braking rail 1, and two are symmetricly set on and bottom girder assembly 6 can drive respectively two braking rail 1 outwards carry out the sliding-block linkage 5 (its concrete structure as shown in Figure 2) expanded or inwardly carry out drawing in simultaneously simultaneously; And be provided with between two sliding-block linkages 5 for driving two groups of sliding-block linkages 5 to expand outwardly or the rod assembly of simultaneously inward collapsible simultaneously.Meanwhile, this preventing railway train runaway device is also provided with actuating device 16 (its concrete structure as shown in Figure 3).
Specifically, rod assembly comprises longitudinal tie 3 and N number of lateral connecting rod assembly, wherein longitudinal tie 3 is connected with actuating device 16 between two sliding-block linkages 5, and this actuating device 16 can drive longitudinal tie 3 to move forward and backward along the length direction of described braking rail 1.And the length direction of N number of lateral connecting rod assembly longitudinally pull bar 3 is arranged in order, and the installation position one_to_one corresponding of its installation position and each hold-down arm assembly 2, wherein, lateral connecting rod assembly comprises two lateral connecting rods 4, and the end of two lateral connecting rods 4 is carried out hinged with the sliding-block linkage 5 of both sides respectively, and the afterbody of two lateral connecting rods is hinged on longitudinal tie 3 jointly.
As shown in Figure 2, sliding-block linkage comprises travelling support 7, supporting seat 8, slide block assembly and spring assembly 10, wherein the bottom of travelling support 7 is connected on bottom girder assembly 6 by double link 11, the two ends of double link 11 are carried out hinged with travelling support 7 and bottom girder assembly 6 respectively, and form the first pin jointed end be positioned on travelling support 7 and the second pin jointed end be positioned on bottom girder assembly 6, the middle part of double link 11 is one section of main part that can separate travelling support 7 and bottom girder assembly 6, travelling support 7 can with the first pin jointed end and the second pin jointed end for fulcrum, upper and lower circular motion is carried out in the length range of double link 11 main part, supporting seat 8 is arranged on travelling support 7, for fixing braking rail 1, slide block assembly is used for travelling support 7 to be hinged with lateral connecting rod 4, it comprises and to be oppositely arranged with supporting seat 8 and to be positioned at the connecting panel 9 of travelling support 7 side, and be hinged on the power transmission earrings 12 of lateral connecting rod 4 end, connecting panel 9 offers vertical chute, and being provided with slide block 13 in described chute, this slide block 13 is connected with power transmission earrings 12, spring assembly 10 comprises: by interior spring and the outer spring sheathed spring body formed mutually, and be separately positioned on left force transmitting board 14 and the right force transmitting board 15 of described spring body both sides, wherein, left force transmitting board 14 is fixed with supporting seat 8 and is connected, and right force transmitting board 15 is fixed with connecting panel 9 and is connected.
It should be noted that, braking rail 1 is driven with the first pin jointed end and the second pin jointed end for fulcrum at travelling support 7, circular motion is done downwards in the length range of double link 11 base portion, to when being resisted against on bottom girder assembly 6, namely when device is in and alleviates position, all parts, all at below rail cover 25mm, are conducive to the safe operation of rolling stock.
In addition, between supporting seat and travelling support 7, adopt sliding block joint, and connecting panel 9 has part to be exposed to the upper surface of travelling support 7, forms one section described supporting seat 8 can be allowed to carry out the movable space of horizontal slip between this expose portion and supporting seat 8 at least;
As shown in Figure 3, actuating device 16 comprises electrical motor 17, and carries out being connected with the main shaft of electrical motor 17 and for reducing the reductor 18 of motor main shaft rotating speed; This reductor 18 is the turbine worm reducer with turbine and worm screw, the worm screw of reductor 18 is the axis of revolution of reductor 18, the Cover For A Turbine of reductor 18, be located on the main shaft of electrical motor 17, and engage with worm screw, wherein, the axis of revolution of reductor 18 forms the clutch end of actuating device 16, the end of axis of revolution is provided with the ball-screw 19 that the gyroscopic movement of axis of revolution can be become straight-line motion by, and axis of revolution is connected with longitudinal tie 3 by ball-screw 19.
It should be noted that, the both sides of reductor 18 are respectively equipped with a preventing railway train runaway device, simultaneously, ball-screw 19 also has two, and being symmetricly set on end and the afterbody of reductor axis of revolution respectively, the end of axis of revolution is connected with the longitudinal tie 3 in two preventing railway train runaway devices respectively by two ball-screws 19 with afterbody.
In addition, railway should comprise K preventing railway train runaway device; Wherein, described K is natural number; And each preventing railway train runaway device arranges successively along the length direction of described railway.Like this when vehicle answers extraordinary circumstances to need emergency braking, just can select according to vehicle position the antislipping equipment that starts, further increase its practicality.
It should be noted that in the present embodiment, as shown in Figure 4, the power drives end 22 of electrical motor 17 and signal control end 23, individually arranged.Wherein, power drives end 22 is for controlling closedown and the unlatching of electrical motor 17, and signal control end 23 is for the route or the departure signal that accept with send vehicle.
The utility model second embodiment relates to a kind of preventing railway train runaway device.Second embodiment is roughly the same with the first embodiment, and key distinction part is: in the first embodiment, and power drives end and the signal control end of electrical motor are individually arranged, and both do not interlock; And in the utility model second embodiment, as shown in Figure 5, power drives end 22 and the signal control end 23 of electrical motor 17 are interlocked by control box 24, this way solves the stationary problem of signal well, as when preventing railway train runaway device is in retarder location, about the route signal of train reception and departure just can not open.
The utility model embodiment basic functional principle is as follows:
When this preventing railway train runaway device is when alleviating position, its top gauge meets " skill rule " requirement about gauge, and train can as prescribed speed run.
During shunting service, while gather shunting route, by control circuit by this preventing railway train runaway apparatus, with to retarder location, now, braking rail 1 and hold-down arm assembly 25 rise, guide surface 20 clamping wheel of braking rail 1, stop and stop the runaway voluntarily of wheel.When braking rail 1 is not at wheel position, be in wait retarder location.Now, if vehicle generation runaway, anti-skid device can be entered by the guiding port of braking rail 1, and be braked by force.Wheel is by braking rail 1 Compress Spring main body, and the antagonistic force of retarding spring main body makes to produce powerful friction force between braking rail and wheel, stops wagon running away.
During train reception and departure operation, while gather train reception and departure route, take anti-skid device to alleviation position also on inspection by control circuit, after alleviation bit representation is good, give a signal can be demonstrated, now, braking rail 1 and hold-down arm assembly 25 fall, and train can normally run.
Technical parameter of the present embodiment is as follows:
(1) braking rail
Total length Lq=7700mm
Effective long Ly=7000mm
(2) two braking rail plane of action spacing
Retarder location Lz=1365 ± 3mm
Alleviate position Lh < 1170mm
(3) gauge height
Retarder location hz=60-5mm
Alleviate position hh < 25mm
(4) braking, remission time
Braking time tz=8s
Remission time th=8s
(5) braking rail guiding port guides angle
Pilot angle α≤5 °
(6) separate unit brake energy height
Brake energy height Hz >=0.21m
(7) electrical motor
Exchange: electric current 2A; Voltage 3 cross streams 380V; Power 1.5KW
Direct current: electric current 1.5-2.0A; Voltage 160V; Power 1.1-1.2KW
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiment of the utility model, and in actual applications, various change can be done to it in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (10)
1. a preventing railway train runaway device, is characterized in that: comprise two braking rail be set in parallel in railway; Wherein, described two braking rail respectively and the vehicle of described railway both sides travel between rail there is the preset pitch that a section can be held wheel of vehicle;
Described preventing railway train runaway device also comprises: be arranged between two braking rail, and carries out N number of hold-down arm assembly of arranging along the length direction of described braking rail; Wherein, described N is natural number, and each hold-down arm assembly comprises horizontal bottom girder assembly between two braking rail, and two are symmetricly set on and described bottom girder assembly can drive respectively two braking rail outwards carry out the sliding-block linkage expanded or inwardly carry out drawing in simultaneously simultaneously;
Described preventing railway train runaway device also comprises: be arranged between two sliding-block linkages for driving two sliding-block linkages to expand outwardly or the rod assembly of simultaneously inward collapsible simultaneously.
2. preventing railway train runaway device according to claim 1, it is characterized in that: described rod assembly comprises and to be arranged between two sliding-block linkages and can to carry out the longitudinal tie moved forward and backward, the N number of lateral connecting rod assembly be arranged in order along the length direction of described longitudinal tie along the length direction of described braking rail, and the installation position one_to_one corresponding of the installation position of each lateral connecting rod assembly and each group of hold-down arm assembly;
Described lateral connecting rod assembly comprises two lateral connecting rods; Wherein, the end of two lateral connecting rods is carried out hinged with the sliding-block linkage of both sides respectively, and the afterbody of two lateral connecting rods is hinged on described longitudinal tie jointly.
3. preventing railway train runaway device according to claim 2, is characterized in that: described sliding-block linkage comprises: be positioned at the travelling support on bottom girder assembly, be arranged on the supporting seat for fixing described braking rail on described travelling support;
Wherein, the bottom of described travelling support is connected with described bottom girder assembly by double link, the second pin jointed end that hinged formation is positioned at the first pin jointed end on described travelling support and is positioned on described bottom girder assembly is carried out at the two ends of described double link respectively with described travelling support and described bottom girder assembly, and the middle part of described double link is one section of main part that can separate described travelling support and described bottom girder assembly, described travelling support can with described first pin jointed end and described second pin jointed end for fulcrum carries out upper and lower circular motion in the length range of described double link main part,
Described sliding-block linkage also comprises: for the slide block assembly described travelling support and described lateral connecting rod being carried out being hinged.
4. preventing railway train runaway device according to claim 3, it is characterized in that: described slide block assembly comprises: be oppositely arranged with described supporting seat and be positioned at the connecting panel of described travelling support side, described connecting panel offers vertical chute, and is provided with slide block in described chute;
Described slide block assembly also comprises: the power transmission earrings being hinged on described lateral connecting rod end, and described power transmission earrings is connected with the slide block in described connecting panel chute.
5. preventing railway train runaway device according to claim 3, it is characterized in that: for fulcrum, in the length range of described double link base portion, downward circular motion is to when being resisted against on described bottom girder assembly with described first pin jointed end and described second pin jointed end to drive described braking rail at described travelling support, and the entirety of described braking rail travels below the upper surface of rail at described vehicle.
6. preventing railway train runaway device according to claim 4, it is characterized in that: between described supporting seat and described travelling support, adopt sliding block joint, and described connecting panel has at least part to be exposed to the upper surface of described travelling support, and between this expose portion and described supporting seat, form one section of movable space that described supporting seat can be allowed to carry out horizontal slip;
Described sliding-block linkage also comprises: be arranged on the spring assembly between described supporting seat and described connecting panel, and wherein, the two ends of described spring assembly are fixed with described supporting seat and described connecting panel respectively and are connected;
Described spring assembly comprises: by interior spring and outer spring sheathed spring body, the left force transmitting board being separately positioned on described spring body both sides and the right force transmitting board formed mutually; Wherein, described left force transmitting board is fixed with described supporting seat and is connected, and described right force transmitting board is fixed with described connecting panel and is connected.
7. preventing railway train runaway device according to claim 2, is characterized in that: described preventing railway train runaway device also comprises: carry out being connected for driving described longitudinal tie to carry out the actuating device moved forward and backward along the length direction of described braking rail with described longitudinal tie;
Described actuating device comprises: electrical motor, carry out being connected the reductor for reducing described motor main shaft rotating speed with the main shaft of described electrical motor;
Wherein, the axis of revolution of described reductor forms the clutch end of described actuating device, the end of described axis of revolution is provided with the ball-screw that the gyroscopic movement of described axis of revolution can be become straight-line motion by, and described axis of revolution is connected with described longitudinal tie by described ball-screw;
Described reductor is the turbine worm reducer with turbine and worm screw; The worm screw of described reductor is the axis of revolution of described reductor, and the Cover For A Turbine of described reductor is located on described motor main shaft and with described worm screw and engages;
The both sides of described reductor are respectively equipped with a described preventing railway train runaway device; Further, described ball-screw has two, and is symmetricly set on end and the afterbody of described reductor axis of revolution respectively, and the end of described axis of revolution is connected with the longitudinal tie in two preventing railway train runaway devices respectively by two ball-screws with afterbody.
8. preventing railway train runaway device according to claim 7, is characterized in that: described preventing railway train runaway device also comprises: carry out the control box be connected respectively with the power drives end of described electrical motor and signal control end.
9. preventing railway train runaway device according to claim 1, it is characterized in that: the side that rail exercised by the relatively described vehicle of described braking rail is formed and travels guide surface between rail and described braking rail for guiding described wheel of vehicle to enter described vehicle, and the form fit of the curve form of described guide surface and described wheel of vehicle side.
10. a railway, is characterized in that: described railway comprises K preventing railway train runaway device as in one of claimed in any of claims 1 to 9; Wherein, described K is natural number;
And each preventing railway train runaway device arranges successively along the length direction of described railway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651788.8U CN204279485U (en) | 2014-11-03 | 2014-11-03 | Preventing railway train runaway device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651788.8U CN204279485U (en) | 2014-11-03 | 2014-11-03 | Preventing railway train runaway device |
Publications (1)
| Publication Number | Publication Date |
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| CN204279485U true CN204279485U (en) | 2015-04-22 |
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ID=52862672
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| CN201420651788.8U Expired - Fee Related CN204279485U (en) | 2014-11-03 | 2014-11-03 | Preventing railway train runaway device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290163A (en) * | 2017-07-04 | 2017-10-24 | 中南大学 | Determine the method and system of the anti-slip facility of rail vehicles under strong wind atmosphere |
-
2014
- 2014-11-03 CN CN201420651788.8U patent/CN204279485U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290163A (en) * | 2017-07-04 | 2017-10-24 | 中南大学 | Determine the method and system of the anti-slip facility of rail vehicles under strong wind atmosphere |
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