CN203672585U - Pushing device for high speed train bump test bench - Google Patents
Pushing device for high speed train bump test bench Download PDFInfo
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- CN203672585U CN203672585U CN201320860480.XU CN201320860480U CN203672585U CN 203672585 U CN203672585 U CN 203672585U CN 201320860480 U CN201320860480 U CN 201320860480U CN 203672585 U CN203672585 U CN 203672585U
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- air spring
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- holder
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Abstract
The utility model discloses a pushing device for a high speed train bump test bench and belongs to the aerodynamic technology field. The pushing device can realize fast working of an active vehicle or a bump vehicle in a relatively large stroke through employing an air spring and enables the active vehicle to reach the required bump speed in the relatively short time and the relatively short stroke. The pushing device comprises an air storage tank, the air spring, the active vehicle and a track, wherein the air storage tank is fixed with the foundation through a mounting seat, a right end of the air storage tank is provided with an interface flange, a left end portion interface of the air spring is connected with the interface flange through a pressure board and a bolt, a right end portion interface of the air spring is connected with a sealing bottom board through a pressure board and a bolt, and a limit board is fixed with a left end face of the active vehicle through a bolt. The pushing device has advantaged of simple structure, relatively small occupation space, large acting force, obvious acceleration of the active vehicle and low experiment cost and is mainly used for experiments and researches.
Description
Technical field
The utility model belongs to aeromechanics technology field, particularly for the pneumatic means of collision experiment platform.
Background technology
Rolling stock collision accident is one of rolling stock the most serious accident in service.In order to study and inquire into the collision characteristic of rolling stock under certain speed, particularly rolling stock is in the time bumping, failure mode, destructiveness that the key positions such as rolling stock energy absorbing device, trainman's cell structure, passenger vehicle end occur, numerous scientific workers adopt large software to calculate emulation to the collision of rolling stock structural member and car load mostly, to some characteristic parameters that collide by this means research, as the foundation of design.But the Impact Problems being mixed to form due to elastic body and rigid body is a brand-new subject, does not have ripe theory and pattern to follow, and simple calculating emulation and the characteristic of actual collision certainly exist larger difference.Except European Countries railway has been carried out a large amount of train impact resistance research in succession, the U.S., Kawasaki, Japan heavy industry have also carried out a large amount of research work.The safety standard that the U.S. has set up about train collision for 1997, and carried out lot of experiments research work.Locomotive, passenger vehicle and the city railway train of these countries to visitor, goods train, has started progressively to adopt impact-resistant energy-absorbing structure car body, is just planning to popularize in an all-round way application.Wherein the research work of train collision aspect was devoted in the Vople of DOT research centre always since 1993, from the collision between collision, locomotive and vehicle, the vehicle of collision, locomotive and the locomotive of single-unit vehicle and rigid wall, to the collision of train to train, and after collision happens in guest room passenger's secondary collision all carried out large quantity research.The R142 type subway train that Kawasaki, Japan heavy industry delivered New York subway uses, for meeting the requirement of the body construction energy absorbing impact energy that the U.S. proposes, has carried out the bump test of separate unit car load specially in the Pueblo city of Colorado.Aspect the dynamic impedance of experimental study institute of International Union of Railways (ERRI) in the time improving cab head-on crash, be studied.The new method and the theory that its objective is exploitation analysis collision process, design can be arranged on the energy absorbing device on car body, and proposes full-scale collision feasibility study, at vehicle end collision area Dissipative Collisions energy.This project also comprises energy absorbing member and is installed on the material of the energy absorbing member on car body and the research of architectural characteristic, and as the foundation designing, comprise the dull and stereotyped of the cellular material of aluminum, the load that withstands shocks and bear the steel pipe of axial load.
The utility model is mainly considered, from the collision characteristic of experiment link checking rolling stock, to set up a kind of simple and effective experiment porch, makes within a short period of time rolling stock obtain larger energy, thereby realizes collision.
In view of the some shortcomings part for acquisition equivalent impact velocity moving system used in current experiment, as Large Piston cylinder moving system, this system is in design, install, there is some problems or difficulty in the aspects such as operation maintenance, similar guided missile gas transmitting moving system exists the gas attack time short, manufacture difficulty is high, the problems such as sonic boom, the utility model needs solving collision experiment table rapid deployment formula moving system, to realize rolling stock in the short period, in more short-range situation, obtain compared with macro-energy and speed, in the finite space, realizing the experiment of rolling stock high velocity impact carries out.
Utility model content
The purpose of this utility model is to provide a kind of thrust unit for bullet train bump testing machine, and it can effectively be realized rolling stock and obtain compared with macro-energy and speed in short period, more short-range situation.
The purpose of this utility model is achieved through the following technical solutions: a kind of thrust unit for bullet train collision experiment platform, comprise gas-holder, air spring, active dolly and track, gas-holder is fixed by mount pad and ground, gas-holder right-hand member is provided with flange, air spring left part interface is connected with the flange of gas-holder with bolt by pressing plate, and air spring right part interface is connected with back cover plate with bolt by pressing plate; Limiting plate is fixed by bolt and the left side of active dolly.
Described gas-holder is provided with gas admittance valve, pressure limiting valve, barometer, vent valve.
Described pressing plate is Thin ring plate, and its endoporus one side is provided with the rounding of large circular arc radius.
Described limiting plate is provided with equally distributed threaded hole and equally distributed through hole along circumference.
By above technical scheme, can realize active dolly is done work fast, make it in short time and stroke, reach required impact velocity, there is acting force large, the advantage such as active vehicle is accelerated obviously, and experimental provision is simple in structure, takes up room less, and experimental cost is low.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model
Fig. 2 is the partial enlarged drawing of the utility model Fig. 1 marker I
Fig. 3 is the partial enlarged drawing of the utility model Fig. 1 marker II
Fig. 4 is the partial enlarged drawing of the utility model Fig. 1 marker III
Fig. 5 is the utility model limiting plate structural drawing
Fig. 6 is the utility model back cover plate structural drawing
Fig. 7 is the utility model pressure plate structure figure
Embodiment
In order to understand better the technical solution of the utility model, below in conjunction with drawings and Examples, the utility model is described in further detail:
The utility model provides a kind of thrust unit for bullet train bump testing machine, comprising: be fixed on the gas-holder 2 on ground, the air spring 12 being connected with gas-holder 2, is located at active dolly 18 and dolly locking device 20 on track 21.Gas-holder 2 belows are provided with mounting seat 1, and the openend of gas-holder 2 is provided with flange-interface 7; Meanwhile, gas-holder 2 is provided with gas admittance valve 3, vent valve 6, pressure limiting valve 4 and barometer 5; Mount pad 1 is fixed by foot bolt with ground, and gas admittance valve 3 is connected with air supply system pipeline, and air spring 12 left part interfaces 9 are connected with gas-holder 2 right-hand member flanges 7 with bolt 8 by pressing plate 10.
Between adjacent two air chambers of air spring 12, be provided with reinforcing ring 13, air spring 12 right part interfaces 17 are connected with pressing plate 15 and back cover plate 16 by bolt 11.
If air bag length is long, its free-extension end can be to moving down under the effect of gravity, and the direction that initiatively the suffered expulsive force of dolly 18 slides with it, not on same straight line, causes dolly rolling or plunges off the tracks 21.In order to prevent that this phenomenon from occurring, on the left side of active dolly 18, be fixed with a limiting plate 22 with bolt 14, the nut outshot of the erection bolt 11 of air spring 12 right part interfaces 17 embeds in limiting plate 22, this can make back cover plate 16 fully contact with dolly 18, and the expansion of air spring 12 is played to guiding.Limiting plate 22 is provided with the threaded hole (limiting plate being fixedly connected with dolly by bolt) distributing along even circumferential and the through hole (the flange hole center circle coaxial cable on center circle and air spring right-hand member cover plate) distributing along even circumferential, the size in hole can make bolt connection piece embed, can limit air spring 12 right-hand members in vertical direction because of the displacement of Action of Gravity Field, the direction that makes expulsive force and direction that initiatively dolly 18 travels, also play a part guiding to the expansion of air spring 12 point-blank.
Below in conjunction with figure, using method of the present utility model and flow process are described: before testing, opening vent valve 6 discharges gas-holder 2 and the interior air of air spring 12, active dolly 18 is pushed into back cover plate 16 and is contacted, pressurized air spring 12 is to minimum length size, and by limit switch 19, active dolly 18 is locked with lock 20,, then close vent valve 6.
When experiment, according to experiment different requirements from power to speed, gas admittance valve 3 by access air pump is inflated gas-holder 2, the gas being filled with makes air spring 12 have expansion to a certain degree, and produce thrust at back cover plate 16 places and act on active dolly 18, when the interior gaseous tension of gas-holder 2 reaches after requirement of experiment, open lock 20 switches, lock 20 departs from active dolly 18 limit switches 19, initiatively dolly 18 is released, air spring 12 is promptly exhibition under the effect of gases at high pressure, the huge expulsive force that expansion process mesohigh gas produces acts on active dolly 18, make initiatively dolly 18 obtain at short notice very large acceleration, after air spring 12 launches completely, initiatively dolly 18 obtain after maximal rate, continue to slide forward to by a collision of colliding.This process has completed active dolly 18 within the short distance short time and has obtained larger energy, thereby realize the requirement of train collision experiment, initiatively the accelerating travel of dolly 18 is along with the length of air spring 12 increases and extends, and expulsive force also can be with back cover plate 16 with initiatively active area and the interior gas pressure intensity of gas-holder 2 of dolly 18 increase.
More than narrate and try hard to show and describe principal character of the present utility model, essence, ultimate principle, technological merit and embodiment; one skilled in the art will appreciate that; embodiment described here is in order to help reader understanding's principle of the present utility model; do not departing under the prerequisite of utility model thought and scope; the utility model also has other various changes and modifications, should be understood in protection domain of the present utility model.
Claims (4)
1. the thrust unit for bullet train bump testing machine, comprise gas-holder (2), air spring (12), active dolly (18) and track (21), it is characterized in that: gas-holder (2) is fixed by mount pad (1) and ground, gas-holder (2) right-hand member is provided with flange (7), air spring (12) left part interface (9) is connected with flange (7) with bolt (8) by pressing plate (10), and air spring (12) right part interface (17) is connected with back cover plate (16) with bolt (11) by pressing plate (15); Limiting plate (22) is fixed by bolt (14) and the left side of active dolly (18).
2. a kind of thrust unit for bullet train bump testing machine according to claim 1, is characterized in that: described pressing plate (10) is Thin ring plate, and its endoporus one side is provided with the rounding of large circular arc radius.
3. a kind of thrust unit for bullet train bump testing machine according to claim 1, is characterized in that: described limiting plate (22) is provided with equally distributed threaded hole and equally distributed through hole along circumference.
4. a kind of thrust unit for bullet train bump testing machine according to claim 1, is characterized in that: described gas-holder (2) is provided with gas admittance valve (3), vent valve (6) pressure limiting valve (4) and barometer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860480.XU CN203672585U (en) | 2013-12-25 | 2013-12-25 | Pushing device for high speed train bump test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860480.XU CN203672585U (en) | 2013-12-25 | 2013-12-25 | Pushing device for high speed train bump test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672585U true CN203672585U (en) | 2014-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320860480.XU Expired - Fee Related CN203672585U (en) | 2013-12-25 | 2013-12-25 | Pushing device for high speed train bump test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672585U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645028A (en) * | 2013-12-25 | 2014-03-19 | 西南交通大学 | Push device for high-speed train collision test bed |
| CN113915194A (en) * | 2021-09-14 | 2022-01-11 | 西南交通大学 | Cylinder volume adjusting and controlling system for cylinder pressure storage ejection test |
-
2013
- 2013-12-25 CN CN201320860480.XU patent/CN203672585U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645028A (en) * | 2013-12-25 | 2014-03-19 | 西南交通大学 | Push device for high-speed train collision test bed |
| CN103645028B (en) * | 2013-12-25 | 2015-11-25 | 西南交通大学 | A kind of thrust unit for bullet train bump testing machine |
| CN113915194A (en) * | 2021-09-14 | 2022-01-11 | 西南交通大学 | Cylinder volume adjusting and controlling system for cylinder pressure storage ejection test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20151225 |
|
| EXPY | Termination of patent right or utility model |