CN110426166A - A kind of railcar air seal test blocks tooling and its packaging technology - Google Patents
A kind of railcar air seal test blocks tooling and its packaging technology Download PDFInfo
- Publication number
- CN110426166A CN110426166A CN201910778012.XA CN201910778012A CN110426166A CN 110426166 A CN110426166 A CN 110426166A CN 201910778012 A CN201910778012 A CN 201910778012A CN 110426166 A CN110426166 A CN 110426166A
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- Prior art keywords
- air seal
- seal test
- tooling
- sealing plate
- railcar
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012360 testing method Methods 0.000 title claims abstract description 74
- 238000012536 packaging technology Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 49
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000003860 storage Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3209—Details, e.g. container closure devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
Abstract
The invention discloses a kind of railcar air seal tests to block tooling and its packaging technology, belong to the technical field of vehicle air seal test, including sealing plate, several mounting holes are disposed with along the perimeter of sealing plate, the side of the sealing plate is equipped with lip ring, the other side is equipped with reinforcing rib and the side is additionally provided with end door U-tube and at least one quick coupling, one end of the end door U-tube and quick coupling are communicated with the other side of sealing plate, the other end of end door U-tube is set as transparent tube body, to reach the property quick for installation for promoting tooling, air is revealed during reducing air seal test, to the closed of air seal test, the purpose of pressure maintaining offer reliable guarantee.
Description
Technical field
The invention belongs to the technical fields of vehicle air seal test, seal in particular to a kind of railcar air seal test
Stifled tooling and its packaging technology.
Background technique
Air seal test platform is the high pressure air-leakage test test suitable for products such as valvelet, pipeline, downhole tools, peace
It full valve performance test and revises, the testing stand for the professional productions manufacture such as high pressure gas cylinder fills, and during vehicle air seal test,
Also air seal test platform can be widely applied, can be carried out verifying to whole tightness.
With the rapid development of subway transportation, the vehicle speed of railcar is also highly improved, to guarantee railcar
Safe operation and ride experience, vehicle air seal test process need to be increased in vehicle manufacturing process, railcar is usually in tunnel
It is travelled in road, it is as airtight in do not controlled vehicle, influence ride experience will be present, airflow fluctuation, vehicle internal and external pressure difference, which can impact, to be multiplied
The problems such as objective ear-drum.
And in vehicle air-tight test, need to by vehicle body sealing and sealing performance to the accuracy of air seal test extremely
Important, in the prior art, it is ineffective often to deposit compartment plug at end part during the test, leads to the standard of entire air-tight test
The problem of true property is by extreme influence, therefore need to design the corresponding tooling that blocks to improve status.
Summary of the invention
In consideration of it, in order to solve the above problems existing in the present technology, the purpose of the present invention is to provide a kind of subways
Air seal test blocks tooling and its packaging technology to reach the property quick for installation for promoting tooling, during reducing air seal test
Air leakage provides the purpose of reliable guarantee to the closed of air seal test, pressure maintaining.
The technical scheme adopted by the invention is as follows: a kind of railcar air seal test closure tooling, including sealing plate, along sealing plate
Perimeter on be disposed with several mounting holes, the side of the sealing plate is equipped with lip ring, and the other side is equipped with reinforcing rib
The item and side is additionally provided with end door U-tube and at least one quick coupling, one end of the end door U-tube and quick coupling are and sealing plate
The other side communicate, the other end of end door U-tube is set as transparent tube body.
It further, further include hanging ring, the hanging ring is set on the sealing plate, to carry out convenient to closure tooling
It hangs.
Further, each mounting hole is set as keyhole, and each mounting hole is passed through with railcar respectively
Eyelet Corresponding matching is installed in channel, can be directly adapted to railcar, and exterior others retaining mechanism is not necessarily to, and reduction is mounted to
This, promotes operating comfort.
Further, the lip ring includes inner ring seal circle and outer ring seal circle, the inner ring seal circle and outer
Ring sealing ring, to provide better sealing, prevents from generating gas leak phenomenon in gas replenishment process in being arranged concentrically.
Further, the reinforcing rib is grid-shaped and is welded on the surface of the sealing plate, promoted the sealing plate by
Pressure energy power is still not in deformation the case where gas pressure intensity reaches 6000pa.
Further, the sealing plate uses aluminum alloy plate materials, reinforces rib and uses aluminum alloy square tube, to guarantee integral strength
With whole durability.
Further, there are two the quick coupling is set, and one of them is connected with the pneumatic hose supplied to it, another
It is equipped with block head, using as spare quick coupling.
The invention also discloses the packaging technology that a kind of railcar air seal test blocks tooling, which includes such as
Under:
(1) lifting air seal test blocks tooling to the corresponding position of vehicle end door and is adjacent to the frame of vehicle end door, leads to
It crosses each mounting hole air seal test closure tooling is locked in vehicle end door；
(2) stopping sliding door, side sliding door and each exhaust outlet of railcar are closed；
(3) liquid is injected in end door U-tube, and is connect quick coupling with air seal test platform by pneumatic hose；
(4) starting air seal test platform carries out air seal test.
Further, the transparent tube body of the end door U-tube is equipped with label, and in air seal test, liquid height is lower than
The position of the label can generate damage to tooling is blocked after preventing the air pressure of railcar from reaching the limit values.
The invention has the benefit that
1. blocking tooling using railcar air seal test provided by the present invention, the lip ring on sealing plate can
Guarantee that it is fitted closely between vehicle end door and there is no gas leak phenomenons, meanwhile, the reinforcing rib on sealing plate can guarantee
Sealing plate will not deform under high-pressure situations, gas leak phenomenon；Vehicle interior gas can be observed in real time by the way that end door U-tube is arranged
Whether pressure has had reached critical value, and to prevent excessively high air pressure from causing to block tooling damage, the closure tooling is quick and easy for installation
And can be used repeatedly, reduce air leakage probability during air seal test, can reach that air seal test is closed, protects
The effect of pressure.
2. blocking the packaging technology of tooling, the behaviour of the packaging technology using railcar air seal test provided by the present invention
It is simple to make step, can will quickly block tooling and lock onto vehicle end door, and pass through quick coupling realization and air seal test
Quick connection between platform, air seal test platform is by barometric information real-time measurement in vehicle, to smoothly complete entire air seal test
Journey, entire air seal test accuracy is high, and safe and reliable.
Detailed description of the invention
Fig. 1 is the positive structure schematic that railcar air seal test provided by the invention blocks tooling；
Fig. 2 is the structure schematic diagram that railcar air seal test provided by the invention blocks tooling；
Fig. 3 is the structural representation that railcar air seal test provided by the invention blocks storage rack in the packaging technology of tooling
Figure；
It is marked in attached drawing as follows:
1- sealing plate, 2- reinforcing rib, 3- end door U-tube, 4- transparent tube body, 5- mounting hole, 6- quick coupling, 7- hanging ring,
8- inner ring seal circle, 9- outer ring seal circle, 10- storage rack.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the embodiment of the present invention, it should be noted that indicating position or positional relationship is based on shown in attached drawings
The orientation or positional relationship invention product using when the orientation or positional relationship usually put or this field
Orientation or positional relationship that technical staff usually understands or the invention product using when the orientation usually put or position close
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " the
One ", " second " is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of the embodiment of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term
" setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be and be directly connected to, can also be indirectly connected with by intermediary.For the ordinary skill in the art, may be used
The concrete meaning of above-mentioned term in the present invention is understood with concrete condition；Attached drawing in embodiment is to in the embodiment of the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can be matched with a variety of different
It sets to arrange and design.
Embodiment 1
As shown in Figure 1, a kind of railcar air seal test closure tooling, including sealing plate 1 are disclosed in the present embodiment, it should
Sealing plate 1 uses width × height=1920mm × 2220mm, and main body is 5mm thickness aluminium alloy material lumber.
Several mounting holes 5 are disposed with along the perimeter of sealing plate 1, each mounting hole 5 is set as keyhole, and
Sealing plate 1 with 5 Corresponding matchings of the run-through channel mounting hole of railcar, is locked at ground by bolt respectively by each mounting hole 5
In the end door of iron car, meanwhile, it should be fitted closely with the end door of railcar after tooling installation, tension, no gas leak phenomenon.
As shown in Fig. 2, the side of the sealing plate 1 is equipped with lip ring, lip ring includes inner ring seal circle 8 and outer
Ring sealing ring 9, the inner ring seal circle 8 are in be arranged concentrically with outer ring seal circle 9；Wherein, inner ring seal circle 8 and outer ring seal circle
9 are all made of the CR adhesive tape of wide 100mm thickness 30mm, and it is good that adhesive tape pastes firm, durable and sealing effect.
It is equipped in the other side of sealing plate 1 and reinforces rib 2,2 use of reinforcing rib is without splicing aluminum alloy square tube (50 × 50)
To increase the integral strength of sealing plate 1, guarantee tooling when pressure is 6000Pa (highest 4200Pa needed for testing) without deformation, gas leakage
Phenomenon, and the side is additionally provided with end door U-tube 3 and at least one quick coupling 6, one end of the end door U-tube 3 and quick coupling 6
Communicated with the other side of sealing plate 1, the other end of end door U-tube 3 is set as transparent tube body 4, with by the transparent tube body 4 in order to
User observes the liquid height in the transparent tube body 4, and whether atmospheric pressure value reaches pole in the compartment to judge railcar
Limit value.Wherein, quick coupling 6 is used as air inlet, and quick coupling 6 is used cooperatively by pneumatic hose and air tightness test-bed, by vehicle
Interior barometric information is directly transferred in air seal test platform, with meet air tightness test-bed air pressure measurement, data transmission etc. functions；
In the present embodiment, there are two quick couplings 6 for setting on sealing plate 1, and one of them is connected with the pneumatic hose supplied to it, lead to
Crossing the quick coupling 6 can be introduced into wind regime wind in the compartment of railcar, facilitate it is simple and direct, without compartment other position searching
Air intake vent, another is equipped with block head, to be in closed state under normality as spare air inlet.
It further include a pair of of hanging ring 7 on sealing plate 1, the hanging ring 7 for the convenient hoisting construction for realizing the closure tooling
It is welded to connect on the sealing plate 1, lifting machine can be lifted by crane sealing plate 1 by lifting rope, suspension hook, in the present embodiment, be adopted
7 structure of hanging ring is safe and reliable, is convenient for handling in workshop.
Further to promote the booster action reinforcing rib 2 and rising to sealing plate 1, the reinforcing rib 2 in the present embodiment is in net
Trellis is simultaneously welded on the surface of the sealing plate 1, to ensure that sealing plate 1 under the pressure action for bearing 6000Pa, still is able to protect
Hold it is indeformable, do not reveal.
As shown in figure 3, further to promote the convenient transportation function of the closure tooling in use, additionally provide with
Its compatible storage rack 10, there are four wheel, wheel materials to use the seamless rubber wheel of polyurethane for the storage rack 10 tool, and wheel is
Two fixed, two universal wheels, facilitate storage；A tooling placing groove, the tilted placement of tooling placing groove are equipped on storage rack 10
There is the sealing plate 1, to transport to sealing plate 1, to prevent the surface for blocking tooling from generating scratch, scuffing etc., in storage rack 10
Corresponding position on should be provided with rubber pad, be supported to sealing plate 1 by rubber pad.
Embodiment 2
On the basis of embodiment 1, it to block the proper use of of tooling, is also disclosed in the present embodiment based on above-mentionedly
Iron car air seal test blocks the packaging technology of tooling, which includes the following:
(1) preparation: complete, without exception according to drawing, construction detail point inspection material；Work is examined according to technical papers point
Whether tool, technological equipment are complete, without exception；
(2) end door blocks: lifting air seal test blocks side of the tooling to the corresponding position of vehicle end door and with vehicle end door
Frame is adjacent to, and is cooperated using bolt, nut, air seal test closure tooling is locked at vehicle by each mounting hole 5
In end door；It need to handle with care when clamping, in order to avoid scratch car body.
(3) stopping sliding door, side sliding door and each exhaust outlet of railcar are closed；It is specific as follows:
1) wind is filled to the air-supply pipeline of the stopping sliding door of vehicle using external wind source, it is ensured that stopping sliding door movement wind is simultaneously closed
It closes；
2) it is powered using single car test door gear to stopping sliding door auxiliary lock, it is ensured that stopping sliding door is closed in place, and stopping sliding door is kept
Auxiliary lock compresses sealing；
3) it powers to vehicle top air conditioner, it is ensured that air-conditioner fresh air inlet is closed；
4) useless row's exhaust outlet is closed in the discharge outlet front end for sealing water seal arrangement；
5) side sliding door is closed.
(4) water is injected in end door U-tube 3, and is connect quick coupling 6 with air seal test platform by pneumatic hose, in gas
Be connected with pressure sensor, vent valve and charge valve in turn between the port of pneumatic hose inside close testing stand, the charge valve with
Gas source pipeline connection；Preferably, label is equipped on the transparent tube body 4 of the end door U-tube 3, in air seal test, liquid is high
Degree should be lower than the position of the label；Specifically: water is injected in transparent tube body 4 in gas replenishment process, tooling pressure maintaining is played, limits
Effect illustrates that air pressure reaches upper limit value, which has the hidden danger of damage when water level is higher than mark point.
(5) starting air seal test platform carries out air seal test, and the test process of air seal test is as follows:
1) charge valve is opened after starting air seal test platform, to starting to inflate in railcar, when pressure sensor detects
Pressure reaches the peak (4000Pa) of setting, closes charge valve, and railcar is allowed to carry out nature deflation；
2) when system detection to pressure reaches the beginning timing pressure of setting, the time started is recorded；Next, system is real
When detect pressure change, until pressure reaches end pressure, the record end time opens vent valve, starts to deflate；
3) in the present embodiment, measurement pressure is down to 1000pa time interval from 2600pa, and the time used is 15S or more,
Then test successfully；Otherwise, test failure.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all to fall into the claims in the present invention confining spectrum
Technical solution, be within the scope of the present invention.
Claims (9)
1. a kind of railcar air seal test blocks tooling, including sealing plate, which is characterized in that arranged along the perimeter of sealing plate
There are several mounting holes, the side of the sealing plate is equipped with lip ring, and the other side is equipped with reinforcing rib and the side is additionally provided with end
Door U-tube and at least one quick coupling, one end of the end door U-tube and quick coupling are communicated with the other side of sealing plate, are held
The other end of door U-tube is set as transparent tube body.
2. railcar air seal test according to claim 1 blocks tooling, which is characterized in that it further include hanging ring, it is described
Hanging ring is set on the sealing plate.
3. railcar air seal test according to claim 1 blocks tooling, which is characterized in that each mounting hole is all provided with
For keyhole, and each mounting hole installs eyelet Corresponding matching with the run-through channel of railcar respectively.
4. railcar air seal test according to claim 1 blocks tooling, which is characterized in that the lip ring packet
Inner ring seal circle and outer ring seal circle are included, the inner ring seal circle is in be arranged concentrically with outer ring seal circle.
5. railcar air seal test according to claim 1 blocks tooling, which is characterized in that the reinforcing rib is in net
Trellis is simultaneously welded on the surface of the sealing plate.
6. railcar air seal test blocks tooling according to claim 1 or 5, which is characterized in that the sealing plate uses
Aluminum alloy plate materials reinforce rib and use aluminum alloy square tube.
7. railcar air seal test according to claim 1 blocks tooling, which is characterized in that the quick coupling is equipped with
Two, and one of them is connected with the pneumatic hose supplied to it, another is equipped with block head.
8. the packaging technology that a kind of railcar air seal test blocks tooling, which is characterized in that the packaging technology applies such as right
It is required that railcar air seal test described in 1-7 any one blocks tooling, include the following:
(1) lifting air seal test blocks tooling to the corresponding position of vehicle end door and is adjacent to the frame of vehicle end door, by each
Air seal test closure tooling is locked in vehicle end door by a mounting hole；
(2) stopping sliding door, side sliding door and each exhaust outlet of railcar are closed；
(3) liquid is injected in end door U-tube, and is connect quick coupling with air seal test platform by pneumatic hose；
(4) starting air seal test platform carries out air seal test.
9. the packaging technology that railcar air seal test according to claim 8 blocks tooling, which is characterized in that the end
The transparent tube body of door U-tube is equipped with label, and in air seal test, liquid height is lower than the position of the label.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910778012.XA CN110426166A (en) | 2019-08-22 | 2019-08-22 | A kind of railcar air seal test blocks tooling and its packaging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910778012.XA CN110426166A (en) | 2019-08-22 | 2019-08-22 | A kind of railcar air seal test blocks tooling and its packaging technology |
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| Publication Number | Publication Date |
|---|---|
| CN110426166A true CN110426166A (en) | 2019-11-08 |
Family
ID=68415563
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910778012.XA Pending CN110426166A (en) | 2019-08-22 | 2019-08-22 | A kind of railcar air seal test blocks tooling and its packaging technology |
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| Country | Link |
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| CN (1) | CN110426166A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945338A (en) * | 2021-09-17 | 2022-01-18 | 青岛中车四方轨道车辆有限公司 | Rail vehicle body sealing performance test device and test method |
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|---|---|---|---|---|
| CN101349607A (en) * | 2008-08-05 | 2009-01-21 | 铁道部运输局 | Rail vehicle whole tightness test method and system |
| CN102507107A (en) * | 2011-11-22 | 2012-06-20 | 唐山轨道客车有限责任公司 | Test equipment used for measuring air tightness of carriage |
| CN102680181A (en) * | 2011-03-14 | 2012-09-19 | 铁道部运输局 | Method and device for testing vehicle body airtightness and fatigue of railway vehicle |
| CN202814666U (en) * | 2012-08-14 | 2013-03-20 | 南车青岛四方机车车辆股份有限公司 | Comprehensive air tightness test bench |
| CN104266851A (en) * | 2014-10-13 | 2015-01-07 | 南车青岛四方机车车辆股份有限公司 | Device for connecting airtight test vehicle body with airtight test bed box |
| CN110068424A (en) * | 2019-05-15 | 2019-07-30 | 中车青岛四方机车车辆股份有限公司 | Railway carriage air seal test gas-tight door and air tight test method |
| CN210221436U (en) * | 2019-08-22 | 2020-03-31 | 中车成都机车车辆有限公司 | Subway vehicle air tightness test plugging tool |
-
2019
- 2019-08-22 CN CN201910778012.XA patent/CN110426166A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349607A (en) * | 2008-08-05 | 2009-01-21 | 铁道部运输局 | Rail vehicle whole tightness test method and system |
| CN102680181A (en) * | 2011-03-14 | 2012-09-19 | 铁道部运输局 | Method and device for testing vehicle body airtightness and fatigue of railway vehicle |
| CN102507107A (en) * | 2011-11-22 | 2012-06-20 | 唐山轨道客车有限责任公司 | Test equipment used for measuring air tightness of carriage |
| CN202814666U (en) * | 2012-08-14 | 2013-03-20 | 南车青岛四方机车车辆股份有限公司 | Comprehensive air tightness test bench |
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| CN110068424A (en) * | 2019-05-15 | 2019-07-30 | 中车青岛四方机车车辆股份有限公司 | Railway carriage air seal test gas-tight door and air tight test method |
| CN210221436U (en) * | 2019-08-22 | 2020-03-31 | 中车成都机车车辆有限公司 | Subway vehicle air tightness test plugging tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945338A (en) * | 2021-09-17 | 2022-01-18 | 青岛中车四方轨道车辆有限公司 | Rail vehicle body sealing performance test device and test method |
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