CN111189652B - Vehicle catapult collision control device - Google Patents
Vehicle catapult collision control device Download PDFInfo
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- CN111189652B CN111189652B CN202010016556.5A CN202010016556A CN111189652B CN 111189652 B CN111189652 B CN 111189652B CN 202010016556 A CN202010016556 A CN 202010016556A CN 111189652 B CN111189652 B CN 111189652B
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- 239000004744 fabric Substances 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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Abstract
本发明提供了一种车辆弹射碰撞控制装置，属于轨道车辆被动安全技术领域。长气缸被气压活塞和布囊分为左右两个气室，每个气室分别设有左右两个进气单向阀和左右两个出气单向阀。导向梁与气压活塞固连，分别贯穿左右两个气缸，同时导向梁被布囊包裹，布囊的两端分别固连在气缸、气压活塞和电磁铁端部，保证气缸形成密闭气室。气压活塞在进气阀和出气阀的共同作用下实现柔性气压被挤压伸缩约束，在高压气体作用下，通过气缸内电磁铁断电实现柔性气囊的弹射释放的可控。柔性气囊推动弹射碰撞试验台车加速弹射，一种车辆弹射碰撞控制装置可实现吸能元件、车辆端部和司机室结构的弹射碰撞试验，具有弹射速度精度高、可重复多次使用特点。
The invention provides a vehicle ejection collision control device, which belongs to the technical field of passive safety of rail vehicles. The long cylinder is divided into two left and right air chambers by the air pressure piston and the cloth bag, and each air chamber is respectively provided with two left and right inlet check valves and left and right outlet check valves. The guide beam is fixedly connected with the pneumatic piston, and runs through the left and right cylinders respectively. At the same time, the guide beam is wrapped by a cloth bag, and the two ends of the cloth bag are respectively fixed to the end of the cylinder, the pneumatic piston and the electromagnet to ensure that the cylinder forms a closed air chamber. The air pressure piston realizes the flexible air pressure being squeezed and stretched under the combined action of the intake valve and the air outlet valve. Under the action of the high pressure gas, the ejection and release of the flexible airbag can be controlled by the power off of the electromagnet in the cylinder. The flexible airbag drives the ejection collision test rig to accelerate the ejection. A vehicle ejection collision control device can realize the ejection collision test of the energy-absorbing element, the vehicle end and the cab structure, and has the characteristics of high ejection speed accuracy and repeated use.
Description
Technical Field
The invention belongs to the technical field of railway vehicle ejection test, and particularly relates to a test trolley ejection collision control device of a railway vehicle.
Background
The research on the passive safety of the locomotive has very important significance for protecting the safety of drivers and passengers and preventing goods from being lost. The energy absorption device is a key link of a collision-resistant design of a locomotive and a vehicle, the passive safety performance of a train can be greatly improved, the vehicle ejection collision control device has important significance for part-level and vehicle collision test research, the current ejection collision device mostly adopts ejection driving modes such as locomotive pushing, motor traction and air cannons, the energy consumption is large, the noise is large, the control error of the collision speed of the energy absorption part and the vehicle is large, the reaction speed is low, the response speed of collision is influenced, and the test error of ejection collision is increased.
Disclosure of Invention
The invention aims to provide a vehicle ejection collision control device which can effectively solve the practical technical problem of accurate ejection collision of vehicles.
The purpose of the invention is realized by the following technical scheme: a vehicle ejection collision control device comprises a reinforced concrete base, an ejection test trolley, a track of the ejection test trolley and a computer control device, wherein the reinforced concrete base is of a rectangular structure, a boss is arranged at the left end of the reinforced concrete base, the lower plane of the right end of the boss is provided with the track, the right side of the track is provided with an impact rigid wall, the front side of the impact rigid wall is provided with a displacement sensor, the base at the lower left side of the impact rigid wall is provided with a groove, and a motor traction device is arranged in; the motor traction device comprises a traction motor arranged in the groove and a traction rope arranged between the two rails, the traction rope extends to a left guide wheel below the other end of the rail along a right tension pulley on the left wall of the groove and bypasses a left tension pulley at the end part and then rewinds a right guide wheel at the right top of the groove to be connected with the traction motor, and the traction electromagnet is positioned at the position which is deviated to the left from the middle point of the rail and is fixed with the traction rope (31); a long air cylinder is arranged on a boss at the left end of the base, a guide beam externally sleeved with a long cloth bag is arranged at the axis of the long air cylinder, two ends of the guide beam penetrate through two ends of the long air cylinder, an air pressure piston is arranged at the position, which is one third of the left side of the center point of the guide beam, inner walls of the long air cylinders at two sides of the air pressure piston are respectively provided with a displacement sensor, the right end of the guide beam penetrates through the left end of the short air cylinder to be fixed with an electromagnet, the short air cylinder is integrally of a rigid-flexible composite structure, the left side of the short air cylinder is of a rigid structure, the right side of the short air cylinder is of a flexible air bag structure, the middle of the short air cylinder is fixed in a sealing manner, the right side of the flexible air bag is provided with an electromagnet base which is; the long cylinder is divided into a left chamber and a right chamber by an air pressure piston, the upper parts of the cylinder walls of the left chamber and the right chamber are respectively provided with a left one-way air inlet valve and a right one-way air inlet valve, and an electromagnetic valve is arranged between the left one-way air inlet valve and the right one-way air inlet valve; the lower parts of the cylinder walls of the left and right chambers are respectively provided with a left one-way air outlet valve and a right one-way air outlet valve; the left end face of the short cylinder is provided with an air inlet one-way valve and an air outlet one-way valve, and the one-way valve is connected between the long cylinder and the short cylinder; the output of the air compressor is respectively connected with the air inlet check valve and the air inlet end of the electromagnetic valve; the control ends of all the check valves or the electromagnetic valves are respectively connected to the information exchanger through lines.
The ejection test trolley floor is provided with a test trolley electromagnet base.
And an air inlet one-way valve is arranged between the long air cylinder and the short air cylinder.
The information exchanger and the air compressor are respectively arranged on the periphery of the test bed.
The lower parts of the long cylinder and the short cylinder are fixed with the boss of the base through the cylinder support.
The inner circle of the guide beam is hollow, and the electric wire is connected to the electromagnet through the hollow part of the inner circle of the guide beam.
The guide beam penetrates through the cloth bag and is wrapped by the cloth bag to leave a gap.
The cylinder is placed on the cylinder support, and is provided with a displacement sensor.
The ejection collision test trolley is placed on the track, and the electromagnet base is fixedly connected to the ejection collision test trolley.
Through the technical scheme, the vehicle ejection collision control device provided by the invention fully utilizes the characteristics of the air compressor, the air cylinder, the cloth bag, the air pressure piston, the electromagnetic valve and the flexible air bag, combines the characteristics of the air and the flexible air bag which act outwards under the interaction of the air and the flexible air bag and the characteristic of high pressure resistance of the flexible air bag and the cloth bag, and realizes a rapid ejection test of vehicle collision through the compressed air and the flexible air bag ejection test trolley, so that the vehicle ejection collision control method is obtained.
Compared with the prior art, the advantages and effects are as follows:
the invention replaces the traditional collision test beds of electric traction, air cannon and trolley pushing and the like, and realizes the ejection collision test research of the component-level energy absorption element, the vehicle end part and the cab structure. The high-pressure gas has the characteristics of high energy storage efficiency and sensitive response, and forms the ejection and control basis of the vehicle ejection collision control device. The invention has the characteristics of simple structure, strong practicability, high reliability and repeated utilization, and is an ideal vehicle ejection collision control device.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention;
FIG. 2 is a schematic structural view of the catapult impact control device of the present invention;
fig. 3 is a detailed structural schematic diagram of the motor traction device of the invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following further describes the present invention with reference to the accompanying drawings and examples.
As shown in fig. 1: a vehicle catapult collision control device comprises a computer control device 1, an information exchanger 2, an air compressor 3 and a long air cylinder 8, wherein the left side of a flexible air bag 11 is hermetically fixed with the right side of a short air cylinder 10, the right side of the flexible air bag 11 is provided with an electromagnet base 13 which is matched with an electromagnet 12, the electromagnet 12 is fixedly connected with the right end of a guide beam 4, the guide beam 4 simultaneously penetrates through a long air cylinder 8, the short air cylinder 10 and an air pressure piston 28 in the long air cylinder 8, the air pressure piston 28 is fixedly connected with the middle part of the guide beam 4 to the left side, a cloth bag 34 is sleeved outside the guide beam 4 in the long air cylinder 8 and the short air cylinder 10, two ends of the cloth bag 34 are fixedly connected with two ends of the long air cylinder 8 and the end part of an electromagnetic valve 12 in the short air cylinder 10, displacement sensors 29 are arranged on two sides of the air pressure piston. The flexible bladder 11 is provided on the right with a track 22 and an ejection test trolley 14. An impact rigid wall 17 is arranged on the right side of the rail 22, a displacement sensor 33 is arranged on the impact rigid wall 17, and a motor traction device is arranged on the left lower side of the impact rigid wall 17 and comprises a traction motor 19, a right tension pulley 21, a right guide pulley 18, a left guide pulley 23, a left tension pulley 24, a traction rope 31 and a traction electromagnet 16. While the traction motor means is displaced in the groove of the reinforced concrete base 20. The long cylinder 8 is divided into a left chamber and a right chamber by an air pressure piston 28, the upper parts of the cylinder walls of the left chamber and the right chamber are respectively provided with a left one-way air inlet valve 5 and a right one-way air inlet valve 7, and an electromagnetic valve 6 is arranged between the left one-way air inlet valve 5 and the right one-way air inlet valve 7; the lower parts of the cylinder walls of the left chamber and the right chamber are respectively provided with a left one-way air outlet valve 30 and a right one-way air outlet valve 27; the left end face of the short cylinder 10 is provided with an air inlet one-way valve 9 and an air outlet one-way valve 25, and the right side of the short cylinder is fixedly connected with the flexible air bag 11; an air inlet one-way valve 26 is connected between the long air cylinder 8 and the short air cylinder 10, and all the one-way valves and the electromagnetic valves are connected to the information exchanger 2 through lines; the floor of the ejection test trolley 14 is provided with a test trolley electromagnet base 15. The guide beam 4 penetrates through the long cylinder 8, the right end of the guide beam penetrates through the left end of the short cylinder 10, the right end of the short cylinder 10 is fixed with the left end of the electromagnet 12, and the right end face of the electromagnet 12 is matched with the electromagnet base 13.
Acceleration sensors and force and displacement sensors 33 are embedded in the impact rigid wall.
The ejection test trolley 14 is positioned on the track 22 and fixedly connected with the electromagnet base 15.
Firstly, the air pressure of the short air cylinder 10 is set through a computer, the computer automatically matches the air pressure setting in the long air cylinder 8, the information set by the computer is transmitted into the information exchanger 2, a control signal is sent to the air compressor 3 and the traction motor 19, firstly, the traction motor 19 is started to carry out forward transmission or reverse transmission according to the specific position of the ejection collision test trolley 14 measured by the displacement sensor 33 colliding with the rigid wall, the traction motor 19 is moved to the position of the electromagnet base 15 of the ejection collision test trolley 14 through the right tension pulley 21, the right guide pulley 18, the left tension pulley 23, the left guide pulley 24 and the traction electromagnet 16, the traction electromagnet 16 is electrified after the position is reached, the traction electromagnet 16 is attracted with the electromagnet base 15, and the collision test trolley 14 is moved to the designated position before collision by starting the traction motor 19. Then the information exchanger 2 sends control information to start the air compressor 3 and open the electromagnetic valve 6, the electromagnetic valve 6 is controlled to open and close to open the left one-way air inlet valve 5 and the right one-way air inlet valve 7 respectively, the left one-way air inlet valve 5 is opened and the right one-way air inlet valve 7 is opened, the right one-way air outlet valve 30 is opened and the right one-way air inlet valve 7 is opened, air is introduced into the left chamber of the long cylinder 8 through the air inlet one-way valve 5, the air pushes the guide beam 4 to move rightwards controllably through the action area air pressure piston 28 until the electromagnet 12 is contacted with the electromagnet base 13 at the end part of the flexible airbag, at the moment, the information exchanger 2 sends control signals to start the electromagnet 12, the electromagnet 12 after being electrified is attracted with the electromagnet base 13, the electromagnetic valve 6 is switched after the electromagnet is attracted, the, simultaneously, a right one-way air inlet valve 7 and a left one-way air outlet valve 30 are opened, air enters a gas cavity on the right side of the long air cylinder 8 through the right one-way air inlet valve 7, the air inlet gas in the cavity on the right side pushes a pneumatic piston 28 to drive the guide beam 4 to move controllably to the left, the electromagnet 12 is fixedly connected with the guide beam 4 to drive the flexible air bag 11 to move leftwards, the right one-way air inlet valve 7 is closed after the left end of the flexible air bag 11 reaches a specified position, the air pressure in the cavity on the right side of the long air cylinder 8 is kept unchanged, air can be supplemented into the short air cylinder 10 by controlling the air inlet one-way valve 26 under the condition of air leakage, the ejection air pressure is set, the ejection precision is guaranteed, meanwhile, the flexible air bag 11 is guaranteed to be fixed, the information exchanger 2 sends a control signal to the air inlet one-, the information exchanger 2 sends a control signal to the electromagnet 12, the power supply of the electromagnet 12 is cut off, the suction force of the electromagnet 12 and the electromagnet base 13 disappears instantly, the pressure in the short air cylinder 10 acts on the flexible air bag 11 to push the ejection collision test trolley 14 to accelerate ejection, and the ejection test trolley 14 impacts the rigid wall 17 at a certain speed to complete an ejection test.
Claims (6)
1. A vehicle catapult collision control device comprises a reinforced concrete base (20), a catapult test trolley (14), a track (22) of the catapult test trolley and a computer control device (1), and is characterized in that: the reinforced concrete base (20) is of a rectangular structure, a boss is arranged at the left end of the base, a rail (22) is arranged on the lower plane of the right end of the boss, an impact rigid wall (17) is arranged on the right side of the rail (22), a first displacement sensor (33) is arranged on the front surface of the impact rigid wall (17), a groove is formed in the base (20) on the lower left side of the impact rigid wall (17), and a motor traction device is arranged in the groove; the motor traction device comprises a traction motor (19) arranged in the groove and a traction rope (31) arranged between two rails (22), the traction rope (31) extends to a left guide wheel (23) below the other end of the rail (22) along a right tension pulley (21) on the left wall of the groove and a left tension pulley (24) bypassing the end part and then winds back a right guide wheel (18) at the right top of the groove to be connected with the traction motor (19), and the traction electromagnet (16) is positioned at the position of the middle point of the rail (22) deviated to the left and is fixed with the traction rope (31); a boss at the left end of the base (20) is provided with a long cylinder (8), the axis of the long cylinder (8) is provided with a guide beam (4) sleeved with a long cloth bag (34) outside, the two ends of the guide beam (4) penetrate through the two ends of the long cylinder (8), the air pressure piston (28) is arranged at the position of one third of the midpoint of the guide beam (4) to the left, the inner walls of the long cylinders (8) at the two sides of the air pressure piston (28) are provided with second displacement sensors (29), the right end of the guide beam (4) penetrates through the left end of the short cylinder (10) to be fixed with the electromagnet (12), the short cylinder (10) is integrally of a rigid-flexible composite structure, the left side of the short cylinder is of a rigid structure, the right side of the short cylinder is of a flexible air bag (11) structure, the middle of the short cylinder (10) is sealed and fixed, the right side of the flexible air bag (11) is provided with a first electromagnet base (13) matched with the electromagnet (12, one end of a cloth bag in the short cylinder (10) is fixed with the left rigid end, and the other end of the cloth bag is fixed with the end part of the inner side of the electromagnet (12); the long cylinder (8) is divided into a left chamber and a right chamber through an air pressure piston (28), the upper parts of the cylinder walls of the left chamber and the right chamber are respectively provided with a left one-way air inlet valve (5) and a right one-way air inlet valve (7), and an electromagnetic valve (6) is arranged between the left one-way air inlet valve (5) and the right one-way air inlet valve (7); the lower parts of the cylinder walls of the left chamber and the right chamber are respectively provided with a left one-way air outlet valve (30) and a right one-way air outlet valve (27); a first air inlet one-way valve (9) and an air outlet one-way valve (25) are arranged on the left end face of the short cylinder (10), and a second air inlet one-way valve (26) is connected between the long cylinder (8) and the short cylinder (10); the output of the air compressor (3) is respectively connected to the air inlet ends of the first air inlet one-way valve (9) and the electromagnetic valve (6); the control ends of all the check valves or the electromagnetic valves are respectively connected to the information exchanger (2) through lines.
2. A vehicle catapult collision control device as claimed in claim 1, characterized in that: the floor of the ejection test trolley (14) is provided with a second electromagnet base (15) of the test trolley.
3. A vehicle catapult collision control device as claimed in claim 1, characterized in that: and a second air inlet one-way valve (26) is arranged between the long air cylinder (8) and the short air cylinder (10).
4. The vehicle catapult collision control device according to claim 1, characterized in that: the information exchanger (2) and the air compressor (3) are respectively arranged on the periphery of the test bed.
5. A vehicle catapult collision control device as claimed in claim 1, characterized in that: the lower parts of the long cylinder (8) and the short cylinder (10) are fixed with the boss of the base (20) through a cylinder support (32).
6. The vehicle catapult collision control device according to claim 1, characterized in that: the inner circle of the guide beam (4) is hollow, and the electric wire is connected to the electromagnet (12) through the hollow part of the inner circle of the guide beam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010016556.5A CN111189652B (en) | 2020-01-08 | 2020-01-08 | Vehicle catapult collision control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010016556.5A CN111189652B (en) | 2020-01-08 | 2020-01-08 | Vehicle catapult collision control device |
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| CN111189652A CN111189652A (en) | 2020-05-22 |
| CN111189652B true CN111189652B (en) | 2021-06-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414661B (en) * | 2020-08-27 | 2022-04-19 | 哈尔滨工业大学 | A Linear Motor Speed Control System Based on Rail Vehicle Collision Test Bench |
| CN115195658B (en) * | 2022-07-14 | 2023-05-16 | 浙江极氪智能科技有限公司 | Active crumple system, method, vehicle and storage medium |
| CN115452414B (en) * | 2022-09-16 | 2024-09-10 | 河南科技大学 | Vehicle ejection collision test device based on high-pressure gas effect |
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