CN104494619B - Upper and lower bidirectional guide motor-car head vehicle - Google Patents

Abstract

The present invention provides a kind of bidirectional guide motor-car head vehicle up and down comprising radome fairing and deflector.It is characterized in that radome fairing is that front end is transversely straight, diameter value is pre-small post-large above and below longitudinal direction is gradually increased, the duckbilled streamlined that upper arc is big, lower arc is small, two sides are straight, and deflector is to block radome fairing two sides and be outwardly extending longitudinal vertical flat plate.The present invention is compared with prior art, front air when being run motor-car by radome fairing and deflector shunts downwards upwards, make crossing current caused by compressed air and is vortexed the motor-car bottom at the top of the motor-car for being confined to open space with fixed space, motor-car two sides are less by disturbance air, and air-flow transverse width is narrower.Air-flow of the split flow above motor-car is easier to dissipate because of spaciousness, air-flow of the split flow in motor-car bottom jolts gentlier because ground effect acts on, two sides are influenced to reduce due to the reduction of relatively high speed air-flow by nearby dynamic and static large-sized object, degree of being swung left and right is small more stable, are reduced to nearby dynamic and static small-sized object attraction safer.

Description

Upper and lower bidirectional guide motor-car head vehicle

One, technical field

The present invention relates to bullet train, specifically a kind of bidirectional guide motor-car head vehicle up and down.

Two, background technique

With the raising of the railway locomotive speed of service, motor-car is inevitable choice using streamlined design.Sub warhead moulding Fast iron, high-speed rail train become motor-car external form basic model.But the locomotive run on railway and the flight run in the air How different external environment factor locating for device is in the presence of weight, can not obtain same beneficial effect using the same or similar moulding Fruit.The reason is that the two overcomes the mode of obstacle during the motion, and external factor is influenced and influenced by external factor Difference: relatively uniform in density in airborne aircraft motion process, the elasticity of compression is than high comprehensive gaseous environment, and there are few phases The influence of adjacent or close different densities object, aircraft squeeze air-discharging in center radioactivity, and the balanced row of squeezing that decomposes is pressed around The air of contracting, optimum use positive streamlined, continuous flow line type design model.Complicated more in railway locomotive local environment side, under Face spacing is attached on the track on rigid solid state ground, above and two sides be in even density gaseous environment, institute it is different with it is important Be that two sides often occur in the same direction or the in opposite directions train that travels and other dynamics or stationary body together or intersection.That is Bullet train is but all base no matter which kind of influence is above and below environmental factor generate to motor-car in its operational process This is changeless, changes in nondeterministic statement at the left and right sides.Railroad train two sides gas in the process of running in other words Stream may all meet with interference at any time and change, get muddled.These uncertain disorder air-flows are to the stability of locomotive, right There is and generate apparent negative effect in the safety of periphery object.

Two, summary of the invention

It the purpose of the present invention is the particular surroundings of the above dynamic change locating for the bullet train and leads to the problem of, provides One kind being suitable for the interference of reduction external factor and reduces interference external environment, keeps motor-car operation more stable, jolts and more slightly, more pacify The full motor-car head vehicle of bidirectional guide up and down.

The purpose of the present invention is what is be achieved through the following technical solutions:

A kind of bidirectional guide motor-car head vehicle up and down comprising radome fairing and deflector, it is characterized in that radome fairing is that front end is horizontal To straight, longitudinal up and down diameter value is pre-small post-large gradually increases, and upper arc is big, lower arc is small, the duckbilled streamlined that two sides are straight, deflector To block radome fairing two sides and being outwardly extending longitudinal vertical flat plate.When motor-car is run, by laterally flat radome fairing by locomotive Preceding air compresses shunting up and down, is limited by the resistance of two sides deflector, compresses the air of shunting only in the upper surface of locomotive under Face forms the driving shaft stream for having expansion power, and locomotive two sides are then primarily present the normal pressure axis stream of relative motion.

Compared with prior art, manufacture simple with structure is easy the motor-car head of bidirectional guide up and down vehicle of the invention, is only changed The features such as unsteady flow wire body shape, less increase windage, in addition, also having following remarkable advantage:

1, the laterally design of flat radome fairing is extruded the air expelled and only shunts up and down in locomotive operation, Compressed air expansion disappear swaging at crossing current and the vortex that is formed with locomotive mantle friction concentrate on the upper surface of locomotive and following.To The forced air of upper shunting is easy to be released to spacious upper space, is less subject to the external world in addition to the of short duration section through bridge culvert Interference and influence, the forced air shunted downwards, because the rigid ground by spacing is influenced, it is difficult to form over locomotive chassis height Crossing current realize pressure release, form the vortex rolled in the same direction with locomotive under the opposite friction on locomotive chassis and ground, occur Effect is imitated on ground, such as the elastic air cushion between locomotive and ground, is mitigated jolt earthquake intensity of the locomotive on rail level, is made locomotive operation more Steadily.

2, the deflector design for being vertically arranged and extending, effectively prevents headstock to separate diffusion of the compressed air stream to two sides Leakage, the crossing current for diffuseing to form the rare compressed air stream in locomotive two sides.The locomotive surface only moved and opposing stationary air Friction generates the axis stream of tiny intensive vortex composition.Its windage resistance is not only effectively reduced, more greatly reduces two sidewinds Transverse width and longitudinal flow speed, less by high-speed flow when making to intersect or accompany with dynamic or stationary body in locomotive operation The negative pressuren zone of generation influences and generates and swing, and locomotive operation is more stable, what same locomotive was also less influenced dynamically or fixed Periphery object keeps the environment of locomotive two sides safer.

3, it as a same reason, when motor-car head vehicle is as trailer, because of the negative pressuren zone that locomotive high-speed motion is formed in the tailstock, also leads It will be by being filled up from the above and below air of locomotive, the vortex that filling is formed is also primarily longitudinal, to locomotive two sides Influence equally can be smaller.

In conclusion the motor-car head vehicle of bidirectional guide up and down of the invention passes through shunting and the longitudinal direction deflector of lateral radome fairing Water conservancy diversion, make motor sport generate absolute movement air-flow, concentrate on the stronger vertical direction of collapse resistance power, make locomotive two sides Relative motion air-flow transverse width is smaller, makes that locomotive operation is more stable, more stable, safer, passenger is more comfortable.Thus, The present invention has good application value.

Four, Detailed description of the invention

Fig. 1 is the partial side diagrammatic cross-section of upper and lower bidirectional guide motor-car head vehicle.

Fig. 2 is the schematic top plan view of upper and lower bidirectional guide motor-car head vehicle.

In figure: 1 motor-car head vehicle, 2 radome fairings, 3 deflectors.

Five, specific embodiment

As shown in Figure 1 and Figure 2, the radome fairing 2 of motor-car head vehicle 1 be made as laterally it is flat, front end flushes, upper arc is big, lower arc Duckbill fairing small, that two sides are straight.Deflector 3 is longitudinally perpendicular plate, blocks 2 two sides of radome fairing and extends outwardly, Front wide and rear narrow gradually receive in extension does not have.

Except for the technical features described in the specification, it all is technically known to those skilled in the art.

Claims (1)

1. a kind of bidirectional guide motor-car head vehicle up and down comprising radome fairing and deflector, it is characterized in that radome fairing is that front end is lateral Straight, diameter value is pre-small post-large above and below longitudinal direction gradually increases, and upper arc is big, lower arc is small, the duckbilled streamlined that two sides are straight, and deflector is It blocks radome fairing two sides and is outwardly extending longitudinal vertical flat plate, it, will be before locomotive by laterally flat radome fairing when motor-car is run Air compresses shunting up and down, is limited by the resistance of head vehicle two sides deflector, compress the air of shunting only in the upper surface of locomotive and The driving shaft stream for having expansion power is formed below, and locomotive two sides are then primarily present the normal pressure axis stream of relative motion, laterally flat The design of radome fairing, in locomotive operation, head of a quilt vehicle squeezes the air expelled and only shunts up and down, and compressed air expansion disappears Swaging at crossing current and with locomotive mantle friction formed vortex concentrate on the upper surface of locomotive and in the following, the pressurization gas shunted upwards Stream is easy to be released to spacious upper space, is less subject to external interference and influence in addition to the of short duration section through bridge culvert, to The forced air of lower shunting, because the rigid ground by spacing is influenced, it is difficult to which the crossing current for forming over locomotive chassis height realizes pressure Power release forms the vortex rolled in the same direction with locomotive under the opposite friction on locomotive chassis and ground, and effect is imitated in spot, as Elastic air cushion between locomotive and ground mitigates jolt earthquake intensity of the locomotive on rail level, keeps locomotive operation more stable, be vertically arranged And the deflector design extended, a vehicle separation diffusion leakage of the compressed air stream to two sides is effectively prevented, keeps locomotive two sides rare The crossing current that compressed air stream diffuses to form, the locomotive surface only moved and opposing stationary windage generate tiny intensive vortex Its windage resistance is not only effectively reduced in the axis stream of composition, more greatly reduces the transverse width and longitudinal flow speed of two sidewinds Degree makes less to be influenced and produced by the negative pressuren zone that high-speed flow generates when intersecting or accompany with dynamic or stationary body in locomotive operation Life swings, and locomotive operation is more stable, and same locomotive also less influences dynamic or fixed periphery object, makes the ring of locomotive two sides Border is safer, as a same reason, when motor-car head vehicle is as trailer, because of the negative pressuren zone that locomotive high-speed motion is formed in the tailstock, also leads It will be by being filled up from the above and below air of locomotive, the vortex that filling is formed is also primarily longitudinal, to locomotive two sides Influence equally can be smaller.