CN108995816A - A kind of cutting type energy absorption device being integrated in seat mobile jib - Google Patents
A kind of cutting type energy absorption device being integrated in seat mobile jib Download PDFInfo
- Publication number
- CN108995816A CN108995816A CN201810751864.5A CN201810751864A CN108995816A CN 108995816 A CN108995816 A CN 108995816A CN 201810751864 A CN201810751864 A CN 201810751864A CN 108995816 A CN108995816 A CN 108995816A
- Authority
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- China
- Prior art keywords
- energy
- cutting
- mobile jib
- absorption device
- integrated
- Prior art date
- 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.)
- Pending
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 72
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 210000005069 ears Anatomy 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
- B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
- B64D11/0619—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with energy absorbing means specially adapted for mitigating impact loads for passenger seats, e.g. at a crash
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a kind of cutting type energy absorption devices for being integrated in seat mobile jib, including the energy absorbing tube being socketed on mobile jib, annular cutting-head and deflection ring, the energy absorbing tube upper end is connect with the mobile jib, the energy absorbing tube lower end is connect by several shear screws with the cutting head, the cutting head include positioned at top be used for connect the shear screw threaded hole and it is several be located at cutting slot of the lower part in energy-absorbing for importing the energy absorbing tube lower end, threaded rod in the middle part of the shear screw to be connect with the threaded hole, top is the polished rod for connecting the energy absorbing tube and the cutting head, the deflection ring is located at the cutting head lower part, upper part is provided with oblique guide face, in energy-absorbing for importing the energy absorbing tube lower end in the cutting slot.Energy absorption device is integrated on seat mobile jib by the present invention has the characteristics that structure is simplified, energy-absorbing stability is good, light quality.
Description
Technical field
The present invention relates to a kind of cutting type energy absorption devices for being integrated in seat mobile jib, belong to seat energy absorption technical field.
Background technique
Energy absorbing device is the core component of helicopter crash proof seat and armored vehicle lightning protection seat, it is in helicopter
Air crash accident occurs and armored vehicle meets with land mine or the limitation of Improvised Explosive Device (IED) explosion time is transmitted to seat occupant
Load, to reduce occupant can casualty rate under existence accident.
Gilewicz is in article " Assessment of the benefits of aircraft
Crashworthiness " when having counted Helicopter Seat without energy absorbing device, since pendant is hit in the accident that occurs in 1 year
It is damaged caused by impact, pilot 23.3%, and other occupants are 42%；Caused by death, pilot 18%, and other occupants are
54%；After installing energy absorption device, the Injury and death rate of accident of pilot and occupant are substantially reduced.And for armored vehicle, when land mine and
Improvised explosive devices are in vehicle bottom explosion time, even if car body itself is not seriously damaged, but the shock wave generated that explodes
Also passenger can be damaged, if seat does not install energy absorption device, the shock wave energy being eventually transferred to occupant can
Up to 20~30 times of the Human Tolerance limit.Therefore, the good seat energy absorbing device of energy absorption performance directly determines seat
To the protective performance of occupant.
From 202251600 U of patent CN, CN2556425 Y, 204,250,371 103661028 A of U, CN of CN, in
Know that existing seat energy absorption device mainly has metal tube enlarged diameter type, turnup tubular type, rolled tube variable load and bubble in conjunction with turnup pipe
Foam aluminium crushes that formula is several, these types of energy absorption device be be independently mounted at using monaural or ears connector the moving part of seat with
Between fixed part, have the disadvantages that
1) armchair structure is complicated, weight weight, and above-mentioned several energy absorption devices have monaural connector, ears connector and pull rod (as schemed
Shown in 1), need on chair framework the connector of installation connection energy absorption device and the guiding mechanism of seat moving part, these parts to increase
Add seat-weight, reduces the reliability of seat；
2) the equal independent vertical of above-mentioned energy absorption device is mounted on seat rear, and being easy to collide in external object causes energy absorbing tube to deform,
Energy absorber unstability is easy to cause during energy-absorbing；
3) above-mentioned energy absorption device core component is all made of metal energy absorbing tube, and complex manufacturing technology is at high cost, and strain rate is sensitive,
I.e. the yield strength of material can increase with the raising of impact velocity, cause real work load and design value quite different.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind to be integrated on seat mobile jib, and structure is simplified, energy-absorbing is stablized
Good, light quality the cutting type energy absorption device of property.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of cutting type energy absorption device being integrated in seat mobile jib, including be socketed on mobile jib energy absorbing tube, annular cutting-head with
And deflection ring, the energy absorbing tube upper end are connect with the mobile jib, the energy absorbing tube lower end is cut by several shear screws with described
Head connection is cut, the cutting head includes that the threaded hole for being used to connect the shear screw positioned at top and several lower parts that are located at exist
Cutting slot when energy-absorbing for importing the energy absorbing tube lower end, the shear screw middle part is the spiral shell connecting with the threaded hole
Rasp bar, top are the polished rod for connecting the energy absorbing tube and the cutting head, and the deflection ring is located under the cutting head
Portion, upper part are provided with oblique guide face, in energy-absorbing for importing the energy absorbing tube lower end in the cutting slot.
It further include slip film, the slip film is used to support and leads between the energy absorbing tube and the mobile jib
To the energy absorbing tube.
The cutting head is equipped with the monaural connector for being connected with cabin side wall.
The energy absorbing tube bottom end face inner circle is equipped with guiding surface, the inclination of cutting slot relative axis direction.
The guiding surface is 60 °, and the cutting slot tilts 60 °, and the oblique guide face is 30 °.
The energy absorbing tube top is equipped with boss, and the boss is equipped with the installation for connecting the energy absorbing tube and mobile jib
Hole location.
The energy absorbing tube is prepared using carbon fibre material.
The deflection ring is threadedly coupled with the cutting head.
In above scheme, the surface of the energy absorbing tube is coated with dry lubricant, and the cutting head is in contact with energy absorbing tube
Position be coated with lubricating grease.
Advantageous effects of the invention:
(1) cutting type energy absorption device of the invention can be used for various absorption systems and field, be used especially for helicopter anti-crash
The energy absorption of seat, military armor vehicle lightning protection seat.Cutting type energy absorption device device of the invention solves expansion tube, overturning
The metals energy-absorbing pipe fitting such as pipe, rolled tube complex manufacturing technology, disadvantage at high cost, strain rate is sensitive, while compared to crushing cylinder
Body energy absorption device has the characteristics that service load is steady again, sees that cutting type energy absorption device service load displacement as shown in Figure 2 is bent
Line；
(2) energy absorption device of the present invention is integrated on seat mobile jib, is eliminated the connectors such as single ears connector, is effectively reduced seat
Weight, mobile jib can prevent unstability as guide rod when energy-absorbing, and entire endergonic structure is not likely to produce hook without projecting point；
(3) energy absorbing tube of the present invention uses thin walled carbon fiber pipe, light-weight relative to metal tube, can produce energy-absorbing stroke in 50mm
Energy absorbing tube between~300mm, and the work of energy absorption device can be changed by adjusting the thickness of tube wall and the width of cutting slot
Load meets requirement of the seat of different model to energy-absorbing stroke and service load；
(4) monaural connector is arranged in the present invention in cutting head, by cutting head and seat splice combinations at a part, effectively mitigates
Weight；And energy absorption device structure of the present invention is simple, number of parts is few, high reliablity.
Detailed description of the invention
Fig. 1 is the existing energy absorption device structural schematic diagram in part；
Fig. 2 is energy absorption device service load displacement curve of the invention；
Fig. 3 is the structural schematic diagram of energy absorber of the present invention；
Fig. 4 is energy absorbing tube structural schematic diagram；
Fig. 5 is cutting head structural schematic diagram；
Fig. 6 is deflection ring structural schematic diagram；
Fig. 7 is sliding membrane structure diagram；
Fig. 8 is shear screw structural schematic diagram；
Fig. 9 is energy absorption device operation schematic diagram；
Figure 10 energy absorption device of the present invention uses schematic diagram.
Description of symbols: 1- metal tube enlarged diameter type energy absorption device；2- turnup tubular type energy absorption device；3- rolled tube and turnup
Pipe combination variable load energy absorption device；4- foamed aluminium crushes formula energy absorption device；110- energy absorbing tube；111- boss；The connection of 112- mobile jib
Hole；113- shear screw connecting hole；114-60 ° of guiding surface；120- cutting head；121- monaural connector；122- cutting slot；123-
Threaded hole；130- deflection ring；131-30 ° of guiding surface；132- external screw thread；The lower end surface 133-；140- slip film；141- opening
Slot；150- shear screw；151- polished rod；152- threaded rod；153- flat recess；161- mobile jib；162- hex head screw；163- spiral shell
It is female.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in figure 3, a kind of cutting type energy absorption device for being integrated in seat mobile jib, including the suction being socketed on mobile jib 161
Energy pipe 110, annular cutting-head 120, deflection ring 130 and ring-shaped slide film 140,110 upper end of energy absorbing tube pass through hex head screw
162 and nut 163 connect with mobile jib 161, lower end is connect by 9 shear screws 150 with cutting head 120, and deflection ring 130 is spirally connected
In 120 lower part of cutting head, ring-shaped slide film 140 is assemblied between energy absorbing tube 110 and mobile jib 161, and cutting head 120 passes through thereon
Monaural connector 121 is connected with bulkhead connector, belongs to seat fixed part；Energy absorbing tube 110 is connected with mobile jib 161, and belonging to seat can
Dynamic part.
Specifically, upper end is provided with thicker boss 111 as shown in figure 4, energy absorbing tube 110 is prepared using carbon fibre material,
To improve the intensity of junction, hex head screw 162 for connecting with mobile jib 161 and nut 163 are provided on boss 111
Hole location 112, lower end are provided with the hole location 113 of 9 shear screws 150 connection；It is oblique that 60 ° of guiding are arranged in energy absorbing tube bottom end face inner circle
Face 114, in order to which the material of 110 lower end of energy absorbing tube when energy-absorbing enters cutting slot 122.
As shown in figure 5, being provided with the monaural connector 121 being connected with cabin side wall in cutting head 120, top is equipped with connection 9
The threaded hole 123 of a shear screw 150, lower part are evenly arranged with 20 U-shaped cutting slots 122, and cutting slot cutting edge is relative to axis
Direction tilts 60 °, so as to guarantee cutting edge strength while cutting edge is as sharp as possible.
As shown in fig. 6,130 top of deflection ring is provided with 30 ° of guiding surfaces 131, by the material of 110 lower end of energy absorbing tube when energy-absorbing
Material imports in the cutting slot 122 of cutting head 120.Cylinder 132, which is equipped with external screw thread, makes lower end when with 120 bolt of cutting head
Until face 133 is contacted with cutting head 120.
As shown in fig. 7, slip film 140 is equipped with open slot 141, sliding membrane material is engineering plastics, is assemblied in energy absorbing tube
Between 110 and seat mobile jib 161, plays a part of to support energy absorbing tube 110, sliding is furthermore also replaced in seat energy absorption slide downward
Bearing play the guiding role.
As shown in figure 8, being spirally connected in the middle part of shear screw 150 for the threaded hole 123 on threaded rod 152, with cutting head 120, push up
End is polished rod 151, is connected to energy absorbing tube 110 and cutting head 120, when seat institute not up to setting value loaded, by shearing spiral shell
150 support seat moving part of nail and human body weight, when reaching setting shock loading value, shear screw polished rod 151 is cut, energy-absorbing
Leading for guiding surface 131 of the pipe 110 on deflection ring 130 is downwardly into cutting slot 122, is destroyed by the cutting of material and absorbs punching
Hit energy.
Fig. 9 shows as after energy absorption device of the present invention starting, the operating condition that energy absorbing tube 110 is cut, when seat, institute is loaded
When reaching setting shock loading value, shear screw polished rod 151 is cut, and energy absorbing tube 110 is cut slot 122 and cuts into piece strip,
Absorb impact energy.
Figure 10 shows a kind of actual use operating condition signal of the invention, is symmetrically installed energy-absorbing dress on seat or so mobile jib
It sets, cutting head 120 is fixed on bulkhead when energy-absorbing, and occupant and seat moving part are moved down by shock loading, and cutting is cut
Screw is cut, energy absorbing tube 110 is pressed into cutting slot 122, is done work by cutting and absorbs impact energy.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of cutting type energy absorption device for being integrated in seat mobile jib, characterized in that including the energy-absorbing being socketed on mobile jib (161)
(110), annular cutting-head (120) and deflection ring (130) are managed, energy absorbing tube (110) upper end and the mobile jib (161) are even
It connects, energy absorbing tube (110) lower end is connect by several shear screws (150) with the cutting head (120), the cutting head
It (120) include the threaded hole (123) for being used to connect the shear screw (150) positioned at top and several lower parts that are located in energy-absorbing
When for the cutting slot (122) that imports the energy absorbing tube (110) lower end, in the middle part of the shear screw (150) be and the spiral shell
The threaded rod (152) of pit (123) connection, top are for connecting the energy absorbing tube (110) and the cutting head (120)
Polished rod (151), the deflection ring (130) are located at the cutting head (120) lower part, and upper part is provided with oblique guide face (131),
For importing the energy absorbing tube (110) lower end in the cutting slot (122) when energy-absorbing.
2. a kind of cutting type energy absorption device for being integrated in seat mobile jib according to claim 1, characterized in that further include sliding
Dynamic film (140), the slip film (140) between the energy absorbing tube (110) and the mobile jib (161), be used to support with
And the guiding energy absorbing tube (110).
3. a kind of cutting type energy absorption device for being integrated in seat mobile jib according to claim 1, characterized in that the cutting
Head (120) is equipped with the monaural connector (121) for being connected with cabin side wall.
4. a kind of cutting type energy absorption device for being integrated in seat mobile jib according to claim 1, characterized in that the energy-absorbing
It manages (110) bottom end face inner circle and is equipped with guiding surface (114), cutting slot (122) the relative axis direction inclination.
5. a kind of cutting type energy absorption device for being integrated in seat mobile jib according to claim 4, characterized in that the guiding
Inclined-plane (114) is 60 °, and the cutting slot (122) tilts 60 °, and the oblique guide face (131) is 30 °.
6. a kind of cutting type energy absorption device for being integrated in seat mobile jib according to claim 1, characterized in that the energy-absorbing
It manages (110) top and is equipped with boss (111), the boss (111) is equipped with for connecting the energy absorbing tube (110) and mobile jib
(161) installation hole location (112).
7. a kind of cutting type energy absorption device for being integrated in seat mobile jib according to claim 1, characterized in that the energy-absorbing
(110) are managed to prepare using carbon fibre material.
8. a kind of cutting type energy absorption device for being integrated in seat mobile jib according to claim 1, characterized in that the deflection
Ring (130) is threadedly coupled with the cutting head (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751864.5A CN108995816A (en) | 2018-07-10 | 2018-07-10 | A kind of cutting type energy absorption device being integrated in seat mobile jib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751864.5A CN108995816A (en) | 2018-07-10 | 2018-07-10 | A kind of cutting type energy absorption device being integrated in seat mobile jib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108995816A true CN108995816A (en) | 2018-12-14 |
Family
ID=64598872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810751864.5A Pending CN108995816A (en) | 2018-07-10 | 2018-07-10 | A kind of cutting type energy absorption device being integrated in seat mobile jib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108995816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220089070A1 (en) * | 2020-09-22 | 2022-03-24 | Ford Global Technologies, Llc | Energy absorbing vehicle seat |
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| CN205554634U (en) * | 2016-04-25 | 2016-09-07 | 蓝灿玉 | Space flight seat buffering energy -absorbing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220089070A1 (en) * | 2020-09-22 | 2022-03-24 | Ford Global Technologies, Llc | Energy absorbing vehicle seat |
| US11400839B2 (en) * | 2020-09-22 | 2022-08-02 | Ford Global Technologies, Llc | Energy absorbing vehicle seat |
| US20220314849A1 (en) * | 2020-09-22 | 2022-10-06 | Ford Global Technologies, Llc | Energy absorbing vehicle seat |
| US11628751B2 (en) * | 2020-09-22 | 2023-04-18 | Ford Global Technologies, Llc | Energy absorbing vehicle seat |
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