CN215908631U

CN215908631U - Vehicle body airtight fatigue test device of railway vehicle

Info

Publication number: CN215908631U
Application number: CN202122055190.5U
Authority: CN
Inventors: 孙明志; 黄应哲; 孟长江
Original assignee: Qingdao Tyco Rail Vehicle Technology Co ltd
Current assignee: Qingdao Tyco Rail Vehicle Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-25
Anticipated expiration: 2031-08-30

Abstract

The utility model relates to the technical field of railway vehicles, and discloses a vehicle body airtight fatigue test device of a railway vehicle, which solves the problem that the airtight device is inconvenient to disassemble at present and comprises a test bed, wherein a test vehicle body is fixedly arranged at the top of the test bed, a base is fixedly arranged at the bottom of the right side of the test bed, a groove is formed in the top of the base, the airtight device is placed in the groove, a pressure air pipe is movably arranged at the left side of the airtight device, the left side of the pressure air pipe is fixedly connected with the test vehicle body, and a sealing mechanism is arranged at the outer side of the pressure air pipe; according to the utility model, through the matching between the cross rod, the return spring and the sliding plate, the sliding plate can move leftwards, the air-tight device is clamped through the matching between the sliding plate and the baffle plate, the positioning rod and the baffle plate can be fixed through the matching between the positioning rod, the screw hole and the second bolt, so that the air-tight device can be fixed, and meanwhile, the second bolt only needs to be loosened, and the air-tight device can be detached from the base.

Description

Vehicle body airtight fatigue test device of railway vehicle

Technical Field

The utility model belongs to the technical field of railway vehicles, and particularly relates to a vehicle body airtight fatigue test device of a railway vehicle.

Background

At present, the speed per hour of domestic rail vehicles reaches more than 380 kilometers per hour, when a motor train unit with the speed level of more than 380 kilometers runs and trains meet, particularly when the motor train unit passes through a tunnel and meets the inside of the tunnel, the pneumatic load borne by a train body is more serious, higher requirements are provided for the strength and the service life of the train body, meanwhile, along with the high-speed running of the rail vehicles, the air tightness of the train is higher and higher, the air tightness of the train body is directly related to the comfort level of passengers, the occurrence of tinnitus phenomenon of the passengers can be effectively reduced through the train body with good air tightness, and therefore the air tightness of the train becomes one of important indexes for measuring the performance of the train.

In the existing vehicle body airtight fatigue test, the airtight device and the vehicle body are often fixedly installed, so that when the airtight device needs to be maintained, the vehicle body and the airtight device need to be detached simultaneously, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the vehicle body airtight fatigue test device for the railway vehicle, which effectively solves the problem that the airtight device is inconvenient to disassemble at present.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a rail vehicle's airtight fatigue test device of automobile body, includes the test bench, the top fixed mounting of test bench has experimental automobile body, and the right side bottom fixed mounting of test bench has the base, and the top of base is seted up flutedly, and airtight device has been placed to the inside of recess, and airtight device's left side movable mounting has the pressure trachea, and tracheal left side and experimental automobile body fixed connection of pressure, sealing mechanism are installed in the tracheal outside of pressure, and the internally mounted of recess has fixed establishment.

Preferably, the fixed establishment is including being located two horizontal poles of base upper groove inside, and the slide has been cup jointed in the outside activity of horizontal pole, and the right side fixedly connected with of slide has the reset spring that cup joints with the horizontal pole activity, and the top fixed mounting of slide has the limiting plate, and the right side fixed mounting of limiting plate has the stiffener, the bottom and the slide fixed connection of stiffener.

Preferably, the left side fixed mounting of limiting plate has the locating lever, and the baffle has been cup jointed in the outside activity of locating lever, baffle and base fixed connection, and the second bolt is all installed to the both sides of baffle, and the screw with second bolt looks adaptation is seted up to one side equidistance of locating lever, and the air tight device is located between baffle and the limiting plate.

Preferably, the sealing mechanism comprises a threaded sleeve sleeved with the pressure air pipe, the right side of the threaded sleeve is provided with an annular groove, the inside of the annular groove is movably clamped with an annular rod, the right side of the annular rod is fixedly provided with a connecting rod at equal angles, and the right side of the connecting rod is fixedly provided with a sealing ring.

Preferably, a placing groove is formed in the left side of the airtight device, and the sealing ring is located inside the placing groove.

Preferably, two sealing gaskets are installed on the outer side of the sealing ring, the two sealing gaskets are attached to the left side of the air sealing device, a first bolt is installed on one side of each sealing gasket, and a nut is installed on the outer side of each first bolt.

Preferably, the outer side of the pressure air pipe is provided with an external thread, and the pressure air pipe is in threaded sleeve connection with the threaded sleeve through the external thread.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, through the matching of the cross rod, the return spring and the sliding plate, the sliding plate can move leftwards, the air-tight device is clamped through the matching of the sliding plate and the baffle plate, and the positioning rod and the baffle plate can be fixed through the matching of the positioning rod, the screw hole and the second bolt, so that the air-tight device can be fixed, and meanwhile, only the second bolt needs to be loosened, and the air-tight device can be detached from the base;

(2) this novel cooperation through pressure trachea and external screw thread and between for the thread bush can rotate and remove right, and through the cooperation between annular rod and connecting rod and the sealing washer, make the sealing washer can remove right and block into the inside of standing groove, and through the cooperation between two sealed pads and first bolt and the nut, thereby seal pressure trachea and gas seal device's junction, prevent gas leakage and cause the influence for the experiment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a fixing mechanism according to the present invention;

FIG. 3 is a schematic structural view of a sealing mechanism according to the present invention;

FIG. 4 is an exploded view of the sealing mechanism of the present invention;

FIG. 5 is a schematic view of a threaded sleeve according to the present invention;

in the figure: 1. a test bed; 2. a pressure air pipe; 3. an external thread; 4. a sealing mechanism; 401. a threaded sleeve; 402. a connecting rod; 403. a nut; 404. a first bolt; 405. a gasket; 406. a seal ring; 407. a placement groove; 408. an annular rod; 409. an annular groove; 5. an air-tight device; 6. a fixing mechanism; 601. a cross bar; 602. a baffle plate; 603. a second bolt; 604. a screw hole; 605. a limiting plate; 606. a slide plate; 607. a return spring; 608. a reinforcing bar; 609. positioning a rod; 7. a base; 8. and (5) testing the vehicle body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 5, the test bed comprises a test bed 1, a test vehicle body 8 is fixedly mounted at the top of the test bed 1, a base 7 is fixedly mounted at the bottom of the right side of the test bed 1, a groove is formed in the top of the base 7, an air-tight device 5 is placed in the groove, a pressure air pipe 2 is movably mounted at the left side of the air-tight device 5, the left side of the pressure air pipe 2 is fixedly connected with the test vehicle body 8, a sealing mechanism 4 is mounted on the outer side of the pressure air pipe 2, and a fixing mechanism 6 is mounted in the groove.

Second embodiment, on the basis of the first embodiment, the fixing mechanism 6 includes two cross bars 601 located inside the groove on the base 7, a sliding plate 606 is movably sleeved outside the cross bars 601, a return spring 607 movably sleeved with the cross bars 601 is fixedly connected to the right side of the sliding plate 606, a limiting plate 605 is fixedly installed at the top of the sliding plate 606, a reinforcing rod 608 is fixedly installed at the right side of the limiting plate 605, the bottom of the reinforcing rod 608 is fixedly connected with the sliding plate 606, a positioning rod 609 is fixedly installed at the left side of the limiting plate 605, a baffle 602 is movably sleeved outside the positioning rod 609, the baffle 602 is fixedly connected with the base 7, second bolts 603 are installed on both sides of the baffle 602, screw holes 604 matched with the second bolts 603 are equidistantly formed on one side of the positioning rod 609, the air-tight device 5 is located between the baffle 602 and the limiting plate 605, when in use, the reinforcing rod 608 is pulled rightwards first, so that the limiting plate 605 and the sliding plate 606 move rightwards, meanwhile, the return springs 607 on both sides are compressed, then the airtight device 5 is prevented in the base 7, so that the airtight device 5 is located on the left side of the sealing pad 405, then the reinforcing rod 608 is loosened, the return springs 607 on both sides are reset and drive the sliding plate 606 to move leftward, then the limiting plate 605 moves leftward until the airtight device 5 contacts the baffle 602, then the second bolt 603 is tightened to clamp into the corresponding screw hole 604, and at this time, the installation and fixation of the airtight device 5 are completed.

Third embodiment, on the basis of the first embodiment, the sealing mechanism 4 includes a threaded sleeve 401 sleeved with the pressure gas pipe 2, the outer side of the pressure gas pipe 2 is provided with an external thread 3, the pressure gas pipe 2 is in threaded sleeve with the threaded sleeve 401 through the external thread 3, the right side of the threaded sleeve 401 is provided with an annular groove 409, the inside of the annular groove 409 is movably clamped with an annular rod 408, the right side of the annular rod 408 is fixedly provided with a connecting rod 402 at an equal angle, the right side of the connecting rod 402 is fixedly provided with a sealing ring 406, the left side of the airtight device 5 is provided with a placing groove 407, the sealing ring 406 is located inside the placing groove 407, the outside of the sealing ring 406 is provided with two sealing gaskets 405, the two sealing gaskets 405 are both attached to the left side of the airtight device 5, one side of the sealing gasket 405 is provided with a first bolt 404, the outside of the first bolt 404 is provided with a nut 403, the threaded sleeve 401 is firstly rotated clockwise, and the threaded sleeve 401 moves rightward, then the connecting rod 402 and the sealing ring 406 are driven to move rightwards until the sealing ring 406 is clamped into the placing groove 407, then the two sealing gaskets 405 are attached to the airtight device 5 and located on two sides of the pressure air pipe 2, then the first bolts 404 on the two sides are rotated, nuts 403 on the two sides are screwed, the two sealing gaskets 405 are screwed and attached to the pressure air pipe 2, and finally the joint between the pressure air pipe 2 and the airtight device 5 is sealed, so that the test failure caused by the leakage of air from the airtight device 5 is prevented.

The working principle is as follows: in use, the reinforcing rod 608 is pulled rightwards, so that the stop plate 605 and the sliding plate 606 move rightwards, the return springs 607 on the two sides are compressed, the airtight device 5 is prevented in the base 7, the airtight device 5 is positioned on the left side of the sealing pad 405, the reinforcing rod 608 is loosened, the return springs 607 on the two sides are reset and drive the sliding plate 606 to move leftwards, the stop plate 605 moves leftwards until the airtight device 5 is contacted with the baffle plate 602, the second bolt 603 is tightened to be clamped into the corresponding screw hole 604, the installation and the fixation of the airtight device 5 are completed, the threaded sleeve 401 is rotated clockwise, the threaded sleeve 401 moves rightwards, the connecting rod 402 and the sealing ring 406 are driven to move rightwards until the sealing ring 406 is clamped into the inner part of the placing groove 407, and then the two sealing pads 405 are jointed with the airtight device 5 and positioned on the two sides of the pressure air pipe 2, then, the first bolts 404 on both sides are rotated, the nuts 403 on both sides are tightened, the two gaskets 405 are tightly screwed and attached to the pressure gas pipe 2, and finally, the joint between the pressure gas pipe 2 and the airtight device 5 is sealed, so that the test failure caused by gas leakage from the airtight device 5 is prevented.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rail vehicle's airtight fatigue test device of automobile body, includes test bench (1), its characterized in that: the test device is characterized in that a test vehicle body (8) is fixedly mounted at the top of the test bed (1), a base (7) is fixedly mounted at the bottom of the right side of the test bed (1), a groove is formed in the top of the base (7), an air-tight device (5) is placed in the groove, a pressure air pipe (2) is movably mounted on the left side of the air-tight device (5), the left side of the pressure air pipe (2) is fixedly connected with the test vehicle body (8), a sealing mechanism (4) is mounted on the outer side of the pressure air pipe (2), and a fixing mechanism (6) is mounted inside the groove.

2. The vehicle body airtight fatigue test device of a railway vehicle as claimed in claim 1, characterized in that: fixed establishment (6) have connected slide (606) including being located inside two horizontal poles (601) of base (7) upper groove, the outside activity of horizontal pole (601) has cup jointed, reset spring (607) that the right side fixedly connected with of slide (606) and horizontal pole (601) activity cup jointed, the top fixed mounting of slide (606) has limiting plate (605), the right side fixed mounting of limiting plate (605) has stiffener (608), the bottom and slide (606) fixed connection of stiffener (608).

3. The vehicle body airtight fatigue test device of a railway vehicle as claimed in claim 2, characterized in that: the left side fixed mounting of limiting plate (605) has locating lever (609), and baffle (602) have been cup jointed in the activity in the outside of locating lever (609), baffle (602) and base (7) fixed connection, and second bolt (603) are all installed to the both sides of baffle (602), and screw (604) with second bolt (603) looks adaptation are seted up to one side equidistance of locating lever (609), and airtight device (5) are located between baffle (602) and limiting plate (605).

4. The vehicle body airtight fatigue test device of a railway vehicle as claimed in claim 1, characterized in that: sealing mechanism (4) include thread bush (401) that cup joints with pressure trachea (2), and annular groove (409) have been seted up on the right side of thread bush (401), and the inside activity joint of annular groove (409) has annular rod (408), and the right side of annular rod (408) is waiting angle fixed mounting to have connecting rod (402), and the right side fixed mounting of connecting rod (402) has sealing washer (406).