CN206856728U - A kind of pressurized type energy absorption device - Google Patents
A kind of pressurized type energy absorption device Download PDFInfo
- Publication number
- CN206856728U CN206856728U CN201720454939.4U CN201720454939U CN206856728U CN 206856728 U CN206856728 U CN 206856728U CN 201720454939 U CN201720454939 U CN 201720454939U CN 206856728 U CN206856728 U CN 206856728U
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- turnup
- pipe
- fixed
- energy absorption
- absorption device
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Abstract
The utility model provides a kind of pressurized type energy absorption device, belongs to rail traffic vehicles passive security technical field.It can efficiently solve endergonic structure and the problem of contradiction be present between resistance level and resistance stationarity.Back cover installing plate is the flange arrangement of uniform bolt hole on circumference, its geometric center position is provided with through hole, constant pressure valve is provided with the hole, inner side is provided with circle convex platform close to bolt hole edge, back cover installing plate is interference fitted and fixed by the tail end of the fixed inducement structure with the pre- turnup of circular arc of the tail end of circle convex platform and confinement tube interference fit and the front end of confinement tube, uniform bolt hole on the circumference of bearing plate, inner side are provided with annulus seam, and the front end of turnup pipe coordinates with annulus seam to be welded and fixed；The outer ring that hemispherical binds is bonded with turnup pipe internal surface, and top is welded and fixed；Confinement tube is coordinated by the inducement structure of inner surface and turnup pipe to be welded and fixed；Integral seal air bag is thin-walled rubber structure.It is mainly used in train end passive security.
Description
Technical field
The utility model belongs to rail traffic vehicles passive security technical field, is related to the passive security skill of train end
Art.
Background technology
Currently used for the energy absorption device of rail traffic vehicles, its major function is：When vehicle occurs inevitably to touch
When hitting, collision energy is absorbed by the irreversible transformation and destruction of car end energy absorption device, avoids vehicle movement form is past from more disliking
Bad direction is developed, protects vehicle body structure that bigger destruction does not occur, farthest protects driver and conductor and valuable sets
Standby safety, reduce the loss that collision accident is brought as much as possible.
The energy absorption device primary structure form of existing rail traffic vehicles has collapse structure and upset tubular construction.Wherein,
Collapse structure can also be subdivided into conquassation tubular construction and honeycomb collapse structure according to the difference of conquassation medium.
Conquassation tubular construction is larger in endergonic process middle impedance fluctuation, and this is to ensureing driver and conductor's safety and vehicle body knot
Structure is completely very unfavorable；Still further aspect, conquassation tubular construction are also easy to deformation instability occur, cause resistance drastically to decline,
Lose energy absorption ability.
Although, there is the shortcomings of absorbing energy capacity is small, parameter designing is difficult in honeycomb collapse structure resistance smooth fluctuations.
It is stable to overturn pipe endergonic structure deformation endergonic process, the upset pipe endergonic structure initial spike after weak link is set
Resistance is small, stationarity is good, but it can not still overcome the shortcomings that resistance level is low, absorbing energy capacity is small, and this obviously seriously hinders
Its utilization in energy absorption device.
It can be found that existing endergonic structure is each advantageous and insufficient, maximum contradiction is resistance for analysis more than
Horizontal and resistance stationarity mediation.The utility model proposes a kind of " pressurized type energy absorption device ", have very much to solving the contradiction
Value.
The content of the invention
The purpose of this utility model is to provide a kind of pressurized type energy absorption device, and it can efficiently solve endergonic structure in impedance
Power is horizontal to have the problem of contradiction between resistance stationarity.
The purpose of this utility model is achieved through the following technical solutions：A kind of pressurized type energy absorption device, including hold
Pressing plate, back cover installing plate and pressure bladder, back cover installing plate are the flange arrangement of uniform bolt hole on circumference, its geometric center position
Through hole has been installed, constant pressure valve is provided with the hole, inner side is provided with circle convex platform close to bolt hole edge, and back cover installing plate passes through circle
Ring convex platform and the tail end of confinement tube interference fit are fixed, and turnup pipe is the pipe of uniform wall thickness, with luring for the pre- turnup of circular arc
The tail end of guide structure and the front end interference fit of confinement tube are fixed, and uniform bolt hole on the circumference of bearing plate, inner side is provided with annulus
Seam, the front end of turnup pipe coordinates with annulus seam to be welded and fixed；The outer ring that hemispherical binds is bonded with turnup pipe internal surface, top
End is welded and fixed；Confinement tube is the pipe of uniform wall thickness, is coordinated by the inducement structure of inner surface and turnup pipe and is welded and fixed；It is whole
Body formula pressure bladder is thin-walled rubber structure, is bonded setting with whole inner-cavity structure, is fixed by adhesive.
The turnup pipe is uniform wall thickness pipe, with pre- turnup inducement structure.
It is described to bind for the hemispherical dome structure of indent.
The confinement tube is uniform wall thickness pipe, and wall thickness is more than turnup pipe.
The device is pre- inflatable structure, and internal gas pressure is constant.
Pressurized type energy absorption device described in the utility model is pre- inflatable structure, i.e., is filled with before use with certain pressure
The stable gas of physico-chemical property.Turnup resistance can be produced during turnup deformation occurs for turnup pipe；Meanwhile constant pressure valve energy
Ensure that air pressure constant is near predetermined threshold value in sealed internal chamber, the pressure acts on hemispherical and bound inwall, can also produce relative
Stable resistance.The pressurized type energy absorption device passes through in the deformation of turnup pipe turnup and closing inner chamber in the turnup energy-absorbing stage
Pressed gas change of internal energy is deformed to inhale to absorb Impact energy in the collapse energy-absorption stage by the conquassation of turnup pipe and confinement tube
Receive energy.The device is by setting different constant pressure valve threshold values to realize that different resistances is horizontal.
Compared with existing structure and technology, its advantage is the utility model：Resistance in collision process is horizontal
With absorbing energy capacity height；Resistance change is steady, peak value is small；Resistance is horizontal and absorbing energy capacity is simply adjustable；With two-stage energy-absorbing
Characteristic.Effectively absorb the collision energy of rail traffic vehicles, and protect driver and conductor safety and vehicle body structure not by broken
It is bad.
Brief description of the drawings
Fig. 1 is the utility model 3-D view
Fig. 2 is the utility model front view
Fig. 3 is the sectional view after the completion of the utility model turnup energy-absorbing stage
Fig. 4 is the utility model bearing plate 3-D view
Fig. 5 is that the utility model binds 3-D view
Fig. 6 is the utility model back cover installing plate 3-D view
Embodiment
The utility model is described in further detail with a kind of embodiment below in conjunction with the accompanying drawings：
A kind of pressurized type energy absorption device, disc bearing plate 1 carry annulus seam 9, are installed to coordinate with turnup pipe 2,
Bearing plate 1 is flange arrangement, uniform bolt hole 8 on circumference, is filled to pass through bolt with anti-creep, anti-bias or other possible energy-absorbings
Put additional structure connection；Turnup pipe 2 is the pipe of uniform wall thickness, and turnup pipe 2 carries the inducement structure 10 of the pre- turnup of circular arc, its
Purpose is the initial deformation for inducing turnup pipe 2, reduces initial spike resistance；The hemispherical of indent bind 5 can bear enough
Big air pressure and be unlikely to be plastically deformed, compared to slab construction, hemispherical binds 5 on the premise of same pressure is born
Construction weight can be mitigated, improve structural stability, 5 outer rings of binding are bonded with the inner surface of turnup pipe 2, hanging installation；Constraint
Pipe 3 is the pipe of uniform wall thickness, and wall thickness should be slightly bigger than the upset wall thickness of pipe 2, ensure confinement tube 3 during the turnup of turnup pipe 2 not
Generation conquassation is deformed, and ensures the monolithic stability of structure, and the inner surface of confinement tube 3 coordinates with turnup pipe inducement structure 10 to be installed；It is circular
The inner side of the back cover installing plate 4 of flange arrangement is provided with circle convex platform 11, is installed to coordinate with confinement tube 3, and back cover installing plate 4 is justified
Uniform bolt hole 12 on week, to be connected by bolt with body construction, center hole is opened in the geometric center position of back cover installing plate 4
13, to install constant pressure valve 7；Integral seal air bag 6 is thin-walled rubber structure, and installation is bonded with whole inner-cavity structure, is ensured
The air-tightness of inner-cavity structure；Constant pressure valve 7, it is installed on the position of 4 center hole of back cover installing plate 13.
In the pressurized type energy absorption device, bearing plate 1 and turnup pipe 2, turnup pipe 2 and bind 5, turnup pipe 2 and confinement tube
3rd, confinement tube 3 is used with back cover installing plate 4 and is welded and fixed.
The bearing plate 1, it is connected by bolt with anti-creep, anti-bias or other energy absorption device additional structures.
The back cover installing plate 4, it is connected by bolt with car body.
The constant pressure valve 7, a threshold value can be set, using the gas pressure intensity in closing inner chamber as controlled quentity controlled variable, when in closing inner chamber
Gas pressure intensity when being more than set threshold value, constant pressure valve 7 can be ensured in closing inner chamber by controlling valve port opening to discharge pressed gas
Pressure it is constant.
The pressure bladder 6 passes through adhesive bonding with internal chamber wall.
The pressurized type energy absorption device is pre- inflatable structure, first with external high pressure aerating device before use, is passed through
Constant pressure valve 7 is filled with the stable pressed gas of physico-chemical property to sealing inner chamber, and the gas pressure intensity for sealing inner chamber should be greater than external environment
Air pressure simultaneously ensures that substantial plastic deformation does not occur for the pressurized type energy absorption device.
Endergonic structure is in collision process：Impact acts on bearing plate 1 first, and is acted on and turned over by bearing plate 1
Pipe crimping 2；The deformation of outside turnup occurs first at pre- turnup inducement structure 10 for turnup pipe 2, and is routinely turned over identical
Volume pattern deforms；At the same time, deformed with the turnup of turnup pipe 2, the volume of closing inner chamber diminishes, the gas of pressed gas
Pressure increases therewith, and when gas pressure exceedes the threshold value of constant pressure valve 7, constant pressure valve 7 will control valve port opening to release according to pressure condition
Pressed gas is put, thus during being deformed along with turnup pipe 2, the gas pressure in sealing inner chamber is always maintained at constant.
When turnup deformation occurs for turnup pipe 2 until when being contacted with back cover installing plate 4, being considered as the turnup energy-absorbing stage terminates.In the stage
During, the source of resistance is the deformation of upset pipe turnup and the gas pressure in closing inner chamber, the pressurized type energy absorption device
Impact energy is absorbed by the pressed gas change of internal energy in the deformation of the turnup of turnup pipe 2 and closing inner chamber.
Further, after the completion of the turnup energy-absorbing stage, structure continues to be pressurized, and turnup pipe 2 occurs conquassation deformation and continued
Energy-absorbing；After end in contact before bearing plate 1 and confinement tube 3, with turnup pipe 2 conquassation deformation together occurs for confinement tube 3, until structure pressure
Burst and exceed body construction utmost carrying ability to load level, structure again without energy-absorbing potentiality when, be considered as energy-absorbing and terminate.
The energy absorption device has impedance by setting the different threshold values of constant pressure valve 7 to realize that different resistances is horizontal
Power is adjustable, peak impedance power is small, resistance change is steady, energy-absorbing is stable and energy absorption greatly the characteristics of and two-stage energy absorption characteristics.
Above-mentioned diagram and description express principal character, general principle, technical advantage and specific reality of the present utility model
Apply scheme.And it will be appreciated by those skilled in the art that described embodiment, which is to aid in reader, understands this practicality
New general principle and thought, only a kind of embodiment of the present utility model, rather than whole embodiments.Institute
On the basis of stating general principle and thought, the utility model also has other various changes and modifications, including different shape, size
Bearing plate and back cover installing plate, different sizes, the turnup pipe of material and confinement tube, there is different inducement structures and turnup form
Turnup pipe, the bolt hole of different size and number, using different control principles but with identical function constant pressure valve or correlation
Structure, the combination of the energy absorption device of varying number etc..Those skilled in the art is in the utility model embodiment institute
On the basis of the general principle and thought of expression, the every other embodiment obtained under the premise of creative work is not made
Belong to the scope of the utility model protection.
Claims (5)
1. a kind of pressurized type energy absorption device, including bearing plate (1), back cover installing plate (4) and pressure bladder (6), it is characterised in that：
Back cover installing plate (4) is the flange arrangement of uniform bolt hole (12) on circumference, and its geometric center position is provided with through hole (13), the hole
In be provided with constant pressure valve (7), inner side is provided with circle convex platform (11) close to bolt hole (12) edge, and back cover installing plate (4) passes through circle
Ring convex platform (11) and the tail end interference fit of confinement tube (3) are fixed, and turnup pipe (2) is the pipe of uniform wall thickness, with circular arc
The tail end of the inducement structure (10) of pre- turnup and the front end interference fit of confinement tube (3) are fixed, uniform on the circumference of bearing plate (1)
Bolt hole (8), inner side are provided with annulus seam (9), and the front end of turnup pipe (2) coordinates with annulus seam (9) to be welded and fixed；Hemispherical
The bind outer ring of (5) is bonded with turnup pipe (2) inner surface, and top is welded and fixed；Confinement tube (3) is the pipe of uniform wall thickness, is led to
Inducement structure (10) cooperation for crossing inner surface and turnup pipe (2) is welded and fixed；Integral seal air bag (6) is thin-walled rubber knot
Structure, installation is bonded with whole inner-cavity structure, is fixed by adhesive.
2. a kind of pressurized type energy absorption device according to claim 1, it is characterized in that：The turnup pipe (2) is uniform wall thickness
Pipe, with pre- turnup inducement structure (10).
3. a kind of pressurized type energy absorption device according to claim 1, it is characterized in that：The hemisphere that (5) are indent that binds
Shape structure.
4. a kind of pressurized type energy absorption device according to claim 1, it is characterized in that：The confinement tube (3) is uniform wall thickness
Pipe, wall thickness are more than turnup pipe (2).
5. a kind of pressurized type energy absorption device according to claim 1, it is characterized in that：The device is pre- inflatable structure, internal
Gas pressure is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454939.4U CN206856728U (en) | 2017-04-27 | 2017-04-27 | A kind of pressurized type energy absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454939.4U CN206856728U (en) | 2017-04-27 | 2017-04-27 | A kind of pressurized type energy absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206856728U true CN206856728U (en) | 2018-01-09 |
Family
ID=60822784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720454939.4U Withdrawn - After Issue CN206856728U (en) | 2017-04-27 | 2017-04-27 | A kind of pressurized type energy absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206856728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106994982A (en) * | 2017-04-27 | 2017-08-01 | 西南交通大学 | A kind of pressurized type energy absorption device |
-
2017
- 2017-04-27 CN CN201720454939.4U patent/CN206856728U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106994982A (en) * | 2017-04-27 | 2017-08-01 | 西南交通大学 | A kind of pressurized type energy absorption device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180109 Effective date of abandoning: 20181225 |