CN201589695U - Experimental device of train movable mould - Google Patents

Experimental device of train movable mould Download PDF

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Publication number
CN201589695U
CN201589695U CN2010201008417U CN201020100841U CN201589695U CN 201589695 U CN201589695 U CN 201589695U CN 2010201008417 U CN2010201008417 U CN 2010201008417U CN 201020100841 U CN201020100841 U CN 201020100841U CN 201589695 U CN201589695 U CN 201589695U
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CN
China
Prior art keywords
cart
flywheel
acceleration
flywheels
circuit
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Expired - Lifetime
Application number
CN2010201008417U
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Chinese (zh)
Inventor
张卫华
崔涛
马启文
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Southwest Jiaotong University
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Southwest Jiaotong University
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Priority to CN2010201008417U priority Critical patent/CN201589695U/en
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Abstract

The utility model relates to an experimental device of a train movable mould; a power device is composed of a compressed air ejection mechanism, a cart and a flywheel acceleration mechanism, wherein the flywheel acceleration mechanism comprises a plurality of flywheels driven by a motor below the area at the rear part of the circuit support; the vertical position of the cart is positioned between the flywheel acceleration mechanism and the circuit support; the horizontal position of the cart is positioned between a test car and the compressed air ejection mechanism; a push rod on the upper surface of the cart upwardly penetrates a guide groove of the circuit support and is alignned with the tail part of the test car; a hydraulic cart interceptor is arranged below the circuit support in the front of the flywheel acceleration mechanism; the vertical position of the hydraulic trolley interceptor is the same with that of the cart; and an ejection rod of the compressed air ejection mechanism is alignned with the tail part of the cart. The experimental device has strong power, the test car is large in shape and heavy in weight, and the test car achieves a higher speed in shorter time; therefore, the experimental environmentis are closer to the truth, and the experimental result is more reliable.

Description

The train moving die experimental provision
Technical field
The utility model relates to a kind of train moving die experimental provision.
Background technology
For satisfying needs of society, railway is implemented great-leap-forward development, and domestic Development of High Speed Railway is constantly created new upsurge.When the high-speed railway mileage constantly extended, road speed was also in continuous improve, and Beijing-Shanghai high speed highest running speed will reach 400km/h.The raising of train running speed has aggravated the interaction of wheel track, and the interaction of train and air dielectric, has brought many new relevant issues for the big system of train.Be to guarantee the high-speed secure operation of bullet train, aerodynamic performance and collision performance that must the research train, the experimental study that need be correlated with to train.
Because train real vehicle circuit experimental cost is higher, organizational scheduling is huge, is subject to the influence of external environment, and the research contents that has implements to exist very big difficulty on the line, even can't implement.All can't actual enforcement on actual track as derail research, train collision etc.
The train moving die experimental provision is a kind of model equipment of simulating the train operation environment, and it uses the instruction carriage and the real train operating conditions of orbital simulation of scaled down.Its cost is low, and experiment is affected by the external environment lessly, can simulate various working, as the dynamic behaviour of train meeting, tunnel by, derail process and derailing back train, even the train collision etc., thereby the train performance is carried out simulation experiment study.
In the train moving die experimental provision, must quicken it for making the instruction carriage operation, existing accelerated mode mainly adopts pressurized air or bungee as power source.As Southwest Jiaotong University's dynamic simulation test line length is 20m, adopts the wire rope guiding, and train model contracts than being 1: 80, and test train speed is 360km/h, is primarily aimed in the tunnel to test.Japan's dynamic model experiment device adopts the wire rope guiding, and highest movement speed is 360km/h, and the tunnel that main experiment condition is the 0.03m caliber is by test.Britain's dynamic model device line length is 132m, adopts the rail guiding, and train contracts than adopting 1: 25, and model quality is 10Kg, and the highest test speed is 200km/h, is mainly used to carry out train meeting and tunnel by test.Central South University's dynamic model device experiment line length is 164m, adopts the rail support guide, and train contracts than being 1: 16~1: 20, launches model quality 15~30Kg, and train running speed 220~280km/h can carry out meeting and tunnel by test.More than these existing train moving die test units or with pressurized air or with bungee as power source because its power is powerful inadequately, so these model ratios are little, travelling speed has much room for improvement.
The utility model content
The purpose of this utility model is to provide a kind of train moving die experimental provision, the power of this device is strong, and the shape of instruction carriage is big, weight is big, and the speed that instruction carriage reaches in the short period of time is higher, experimental situation and truth are more approaching, and experimental result is more reliable.
The utility model is realized its goal of the invention, and the technical scheme that is adopted is: a kind of train moving die experimental provision comprises the instruction carriage that circuit supports, circuit supports, the propulsion system at instruction carriage rear.Its design feature is: propulsion system are made up of pressurized air ejection mechanism, go-cart and flywheel acceleration mechanism, wherein:
Described flywheel acceleration mechanism is supported a plurality of the formation motor-driven flywheel of Background Region below by circuit, the vertical position of described go-cart is between flywheel acceleration mechanism and circuit support, horizontal level is between instruction carriage and pressurized air ejection mechanism, the catch bar of go-cart upper surface upwards passes the gathering sill of circuit support and the afterbody of alignment test car, the circuit in flywheel acceleration mechanism the place ahead supports and has fluid pressure type go-cart blocker, and fluid pressure type go-cart blocker is identical with the vertical position of go-cart; The piston ejector ram, ejector piston of described pressurized air ejection mechanism is aimed at the afterbody of go-cart.
The principle of work of the present utility model and the course of work are: during experiment, the rear that instruction carriage is placed that circuit supports is near the position of pressurized air ejection mechanism.The piston ejector ram, ejector piston of pressurized air ejection mechanism ejects, and promotes go-cart forward, and promotes the instruction carriage that circuit supports by the catch bar that go-cart protrudes upward and move forward, carries out primary acceleration.When go-cart runs to when quickening the flywheel mechanism top, provide power to go-cart successively by from back to front each flywheel, go-cart and instruction carriage are quickened once more.When the go-cart under circuit supports moved to the fluid pressure type go-cart blocker in the place ahead, go-cart was blocked out of service; Instruction carriage on circuit supports then under action of inertia, enters the test block at a high speed, carries out corresponding performance test.
Compared with prior art, the beneficial effects of the utility model are:
The utility model has adopted aerodynamic force to quicken to quicken two kinds of different accelerated modes with mechanical flywheel instruction carriage has been quickened, instruction carriage obtains twice acceleration, quickening power improves greatly, the volume and weight of instruction carriage obtains increasing, the speed of instruction carriage gets a promotion, thereby make Simulation result more identical, be suitable for the simulated experiment of bullet train with the operation conditions of true train.And the acceleration of the longer distance of secondary a plurality of mechanical flywheels, than the acceleration of launching that once contacts, the speed control of instruction carriage is more accurate, reliable,, thereby test findings is more accurate, reliable.
Utilize device of the present utility model, the model ratio of instruction carriage can reach 1: 10, and model quality can reach 50kg, and instruction carriage speed can reach 600km/h.And the maximum ratio of existing dynamic model is 1: 16, and its model quality is 30kg, and highest running speed is 300km/h.And the utility model device also can be adjusted the number of flywheel according to the demand of test, thereby satisfies the testing requirements that ratio is bigger, quality is bigger, speed is higher.
Simultaneously, two kinds of accelerated modes of the present utility model are independent fully, thereby can distinguish control separately, when rate request is not high, can only use a kind of accelerator, thereby make the scope of application of device of the present utility model wider, can be used for the dynamic model experiment of various trains.
The both sides of above-mentioned go-cart bottom have locating slot longitudinally, and backstay passes locating slot, and backstay fixes on the ground by support member.
Like this, go-cart can be fixed on exactly circuit and support the vertical and lateral position that the below is set, can guarantee that again it is carrying out good forward and backward moving on backstay, guarantee that it promotes instruction carriage and forwards moves.
A plurality of flywheels of above-mentioned flywheel acceleration mechanism are two groups, the rear is acceleration flywheel group for one group, the place ahead is a deceleration flywheel group for one group, and all flywheels are from the back to preceding tandem drive, that quickens the flywheel group is connected with accelerating gearbox from the back between any two preceding flywheels, deceleration flywheel group be connected with reduction gear box from the back between any two preceding flywheels.
Quicken the flywheel group as the power source second time, realize speed-raising step by step, make go-cart and instruction carriage can obtain higher and stable speed go-cart; In the place ahead of quickening the flywheel group deceleration flywheel group is set, go-cart is slowed down gradually, instruction carriage continues high-speed cruising forward simultaneously, and instruction carriage is realized separating with go-cart; Go-cart after slowing down is then clashed into mutually with the fluid pressure type go-cart blocker in deceleration flywheel group the place ahead again; guarantee that go-cart can in time stop; reduce the impact that go-cart is subjected to; help protection to go-cart; prevent that it from serious collision taking place and damage the serviceable life of raising go-cart and blocker in experimentation.
Consisting of of above-mentioned pressurized air ejection mechanism: water head tank links to each other with the inlet opening of compressed air tank through water drain valve, and the gas outlet of compressed air tank links to each other with actuating plunger, and the piston rod of actuating plunger constitutes the piston ejector ram, ejector piston of ejection mechanism.
Water drain valve by water head tank is opened, and adds water in compressed air tank, and the air in the compressed air tank is pressurizeed, and drives the piston rod action of actuating plunger, and the piston ejector ram, ejector piston that is made of ejection mechanism piston rod is realized quickening for the first time to go-cart.In experimentation, can pass through to regulate the height of tank, thereby adjust the air decrement in the pressurized air, realize adjusting to the ejection force of piston ejector ram, ejector piston.
The piston rod lower surface of above-mentioned actuating plunger is provided with locating piece, locating piece the place ahead be provided be fixed in ground preceding stop block and telescopic back stop block.
Before actuating plunger launches,, increase and maintenance potential energy wherein by the motion of locating piece on the piston rod and back stop block confined piston; Telescopic back stop block is shunk downwards, and the release plunger bar outwards launches.By locating piece and preceding stop block piston rod stroke is forward retrained, to guarantee that piston can not bump with the cylinder body front portion.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the plan structure synoptic diagram that the circuit of the utility model embodiment supports.
Fig. 3 is that the structure for amplifying synoptic diagram is looked on the left side of the go-cart of the utility model embodiment.
Embodiment
Embodiment
Fig. 1,2 illustrates, and a kind of embodiment of the present utility model is: a kind of train moving die experimental provision comprises that circuit support 1, circuit support last 1 instruction carriage 2, the propulsion system at instruction carriage 2 rears.Propulsion system are made up of pressurized air ejection mechanism 3, go-cart 4 and flywheel acceleration mechanism, wherein:
Described flywheel acceleration mechanism is made of a plurality of flywheels that driven by motor 6 that circuit supports 1 Background Region below, the vertical position of described go-cart 4 is supported between 1 at flywheel acceleration mechanism and circuit, horizontal level is between instruction carriage 2 and pressurized air ejection mechanism 3, the catch bar 4a of go-cart 4 upper surfaces upwards passes the gathering sill 1a of circuit support 1 and the afterbody of alignment test car, the circuit in flywheel acceleration mechanism the place ahead supports 1 and has fluid pressure type go-cart blocker 7, and fluid pressure type go-cart blocker 7 is identical with the vertical position of go-cart 4; The piston ejector ram, ejector piston 3a of described pressurized air ejection mechanism 3 aims at the afterbody of go-cart.
Fig. 1 and Fig. 3 illustrate, and the both sides of these routine go-cart 4 bottoms have locating slot 4b longitudinally, and backstay 4d passes locating slot 4b, and backstay 4d fixes on the ground by support member 4c.
Fig. 1 also illustrates, a plurality of flywheels of this routine flywheel acceleration mechanism are two groups, the rear is acceleration flywheel group 5 for one group, the place ahead is a deceleration flywheel group 6 for one group, and all flywheels are from the back to preceding tandem drive, that quickens flywheel group 5 is connected with accelerating gearbox from the back between any two preceding flywheels, deceleration flywheel group 6 be connected with reduction gear box from the back between any two preceding flywheels.
Fig. 1 illustrates, consisting of of the pressurized air ejection mechanism 3 that this is routine: water head tank 3b links to each other with the inlet opening of compressed air tank 3d through water drain valve 3c, the gas outlet of compressed air tank 3d links to each other with actuating plunger 3e, and the piston rod of actuating plunger 3e constitutes the piston ejector ram, ejector piston 3a of ejection mechanism.The piston rod 3a lower surface of actuating plunger 3e is provided with locating piece 3f, and locating piece 3f the place ahead is provided with preceding stop block 3h and the telescopic back stop block 3g that is fixed in ground.
More than in the explanation, about the definition in forward and backward orientation, the direction during with the instruction carriage test run is consistent.Show among Fig. 1 that left is the rear, right-hand is the place ahead.
The utility model device also can adopt air compressor that compressed air tank is inflated in advance in use, thereby can for go-cart provides higher power, make instruction carriage obtain higher speed in the process of quickening for the first time.
The utility model is when implementing, and the front end that supports at circuit can also be provided with instruction carriage blocking apparatus 8, thereby conveniently instruction carriage is carried out recycling.

Claims (5)

1. train moving die experimental provision, comprise that circuit supports (1), circuit supports the instruction carriage (2) of going up (1), the propulsion system at instruction carriage (2) rear, it is characterized in that: described propulsion system are made up of pressurized air ejection mechanism (3), go-cart (4) and flywheel acceleration mechanism, wherein:
Described flywheel acceleration mechanism is made of a plurality of flywheels that driven by motor (6) that circuit supports (1) Background Region below, the vertical position of described go-cart (4) is positioned at the flywheel acceleration mechanism and circuit supports between (1), horizontal level is positioned between instruction carriage (2) and the pressurized air ejection mechanism (3), the catch bar (4a) of go-cart (4) upper surface upwards passes circuit and supports the gathering sill (1a) of (1) and the afterbody of alignment test car, the circuit in flywheel acceleration mechanism the place ahead supports (1) and has fluid pressure type go-cart blocker (7), and fluid pressure type go-cart blocker (7) is identical with the vertical position of go-cart (4); The piston ejector ram, ejector piston (3a) of described pressurized air ejection mechanism (3) is aimed at the afterbody of go-cart.
2. a kind of train moving die experimental provision as claimed in claim 1, it is characterized in that: the both sides of described go-cart (4) bottom have locating slot (4b) longitudinally, backstay (4d) passes locating slot (4b), and backstay (4d) fixes on the ground by support member (4c).
3. a kind of train moving die experimental provision as claimed in claim 1, it is characterized in that: a plurality of flywheels of described flywheel acceleration mechanism are two groups, the rear is acceleration flywheel group (5) for one group, the place ahead is a deceleration flywheel group (6) for one group, and all flywheels are from the back to preceding tandem drive, that quickens flywheel group (5) is connected with accelerating gearbox from the back between any two preceding flywheels, deceleration flywheel group (6) be connected with reduction gear box from the back between any two preceding flywheels.
4. a kind of train moving die experimental provision as claimed in claim 1, it is characterized in that: the consisting of of described pressurized air ejection mechanism (3): water head tank (3b) links to each other through the inlet opening of water drain valve (3c) with compressed air tank (3d), the gas outlet of compressed air tank (3d) links to each other with actuating plunger (3e), and the piston rod of actuating plunger (3e) constitutes the piston ejector ram, ejector piston (3a) of ejection mechanism.
5. a kind of train moving die experimental provision as claimed in claim 4, it is characterized in that: piston rod (3a) lower surface of described actuating plunger (3e) is provided with locating piece (3f), and locating piece (3f) the place ahead is provided with preceding stop block (3h) and the telescopic back stop block (3g) that is fixed in ground.
CN2010201008417U 2010-01-25 2010-01-25 Experimental device of train movable mould Expired - Lifetime CN201589695U (en)

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Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101750219B (en) * 2010-01-25 2011-05-04 西南交通大学 Train moving die experiment system
CN102435453A (en) * 2011-11-30 2012-05-02 中国北车集团大连机车研究所有限公司 Multi-stage shift flywheel device
CN103454062A (en) * 2013-09-03 2013-12-18 西南交通大学 Accelerating system for collision experiment of high speed train
CN104568355A (en) * 2015-02-02 2015-04-29 中南大学 Vehicle-bridge coupling shaking test device with annular rail
CN104568356A (en) * 2015-02-02 2015-04-29 中南大学 Vehicle-rail-bridge shaking table test device with circular rail

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101750219B (en) * 2010-01-25 2011-05-04 西南交通大学 Train moving die experiment system
CN102435453A (en) * 2011-11-30 2012-05-02 中国北车集团大连机车研究所有限公司 Multi-stage shift flywheel device
CN103454062A (en) * 2013-09-03 2013-12-18 西南交通大学 Accelerating system for collision experiment of high speed train
CN103454062B (en) * 2013-09-03 2015-10-07 西南交通大学 For the accelerating system of bullet train collision experiment
CN104568355A (en) * 2015-02-02 2015-04-29 中南大学 Vehicle-bridge coupling shaking test device with annular rail
CN104568356A (en) * 2015-02-02 2015-04-29 中南大学 Vehicle-rail-bridge shaking table test device with circular rail

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AV01 Patent right actively abandoned

Granted publication date: 20100922

Effective date of abandoning: 20100125