CN108004977A - Variable damping dynamic energy absorber - Google Patents
Variable damping dynamic energy absorber Download PDFInfo
- Publication number
- CN108004977A CN108004977A CN201711331376.0A CN201711331376A CN108004977A CN 108004977 A CN108004977 A CN 108004977A CN 201711331376 A CN201711331376 A CN 201711331376A CN 108004977 A CN108004977 A CN 108004977A
- Authority
- CN
- China
- Prior art keywords
- babinet
- rope
- reel
- splined shaft
- pinion gear
- 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
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 18
- 238000013016 damping Methods 0.000 title claims abstract description 17
- 238000004804 winding Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/12—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions for forcibly arresting or disabling vehicles, e.g. spiked mats
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a kind of variable damping dynamic energy absorber, including babinet, the upper cover to match with babinet upper end opening, spud pile is installed in the tank floor, pinion gear seat is installed on the side surface of the babinet, pinion gear is installed on the pinion gear seat, brake assembly is installed in the babinet, sender unit is installed in the babinet.Kinetic energy is big, stable working the beneficial effects of the invention are as follows absorbing, impact is small, performance is stable, it is small, light-weight, easy for installation, safeguard it is simple, alarm signal can be sent immediately, make fast reaction easy to related personnel or department.
Description
Technical field
The present invention relates to security protection and anti-terrorism apparatus field, particularly a kind of variable damping dynamic energy absorber (particularly vehicle
Interception field).
Background technology
At present, domestic vehicles interception equipment pattern is more, military unit doorway generally use kinfe rest, mobile roadblock for stopping vehicles
And drone version breaks the mode that tire vehicle stopping nail combined type is put and lays.Non-military unit doorway is usually laid with more hidden " turn over
Plate " formula roadblock for stopping vehicles or hydraulic up-down anticollision steel column.It is rigidity safety barrier that these vehicles, which block equipment, puts class device
There is the defects of heavy, mobile inconvenience (such as kinfe rest, cylindrical isolation pile, mobile roadblock for stopping vehicles) in material；Class equipment is laid with to deposit
Need target slot in front of the door greatly ditching, lay the shortcomings that Lock gate, frequent demolition and maintenance (such as " reprint ", hydraulic up-down
Stake)；Broken tire class equipment is only capable of brokenly tire deflation, slows down car speed, the illegal invasion for " car bomb " can not be blocked effectively
Cut.
In order to preferably solve the above problems, those skilled in the art devise flexible hold-up interception device, core therein
Center portion part is to provide the dynamic energy absorber for intercepting resistance.But existing dynamic energy absorber is because working method more falls behind, only
Can produce it is constant block power, so there are some defects.Specifically, it is that vehicle is subject to and outer when vehicle crash occurs
Power Σ F include blocking power F, frictional ground force f, vehicle interior resistance f ' and air drag f " etc..Understand ground by analysis
Face frictional force is determined by the friction coefficient on vehicle weight and ground, is remained unchanged in impact event；Vehicle interior resistance is car
The attribute of itself, also remains unchanged in impact event；Air drag can be ignored compared with foregoing several power.Institute
With vehicle is subject to and external force Σ F are to maintain constant in whole impact event., can according to Newton's second law F=ma
To show that acceleration (i.e. the change rate of speed) of the vehicle in whole impact event is also constant.Further according to momentum theorem
Ft=m Δs v understands that the power that vehicle is subject in impact event is directly proportional to vehicle weight, and the velocity variations with vehicle are into just
Than being inversely proportional with colliding duration.It is very fast in a small distance internal cause speed that collision has just occurred, so collide
Time is shorter, this allows for vehicle and is severely affected power in a flash what collision had just occurred, if this impact force surpasses
Go out the ultimate strength of rope, will result in cord break, cause vehicle to intercept failure.
The content of the invention
The purpose of the present invention is to solve the above problem, devises a kind of variable damping dynamic energy absorber.
Realize above-mentioned purpose the technical scheme is that, a kind of variable damping dynamic energy absorber, including babinet, with case
The upper cover that body upper end opening matches, is provided with spud pile in the tank floor, is provided with the side surface of the babinet small
Pinion stand, is provided with pinion gear on the pinion gear seat, is provided with brake assembly in the babinet, the brake assembly be by
Splined shaft in babinet, installed in splined shaft left end and be fixed in interior left end cap, installed in spline
Axis right end is simultaneously fixed on the right end cap in interior, is sleeved on volume on splined shaft and between left end cap and right end cap
Cylinder, be sleeved on splined shaft and can along the screw thread briquetting that splined shaft length direction moves, be sleeved on splined shaft and and screw thread
The disc spring of briquetting contact, some outside friction discs being movably arranged in reel, interior friction of some movable sets on splined shaft
Piece, be wrapped on reel and one end is fixed on the other end on reel and stretches out the rope of babinet and on right end cap and can
Put in what the adjusting bolt of right end cover length collectively formed by threaded adjustment, leftmost one in some inner attrition pieces
Piece is contacted with disc spring, and a piece of of rightmost contacts with adjusting bolt in some inner attrition pieces, and some outside friction discs are pressed
Be sequentially inserted into according to order from left to right between two adjacent inner attrition pieces, some outside friction discs with it is some described
Inner attrition piece forms the structure of cross arrangement, and the inner attrition piece is slided along splined shaft length direction cannot surround splined shaft
Rotate, the outside friction disc follows spool turns and slided along reel length direction, the external screw thread and volume of the screw thread briquetting
The internal thread of tube inner surface screws, and toothed disc is installed with the reel, and the toothed disc is engaged with pinion gear.
Pinion gear is installed, the pinion gear shaft end can be connected with crank one end, and the other end is located on the pinion gear seat
Outside babinet.
The box inside wall is equipped with sender unit stent, and letter is provided with the sender unit stent
Number dispensing device, the reel are provided with sender unit baffle close to one end of sender unit stent.
It is some that the reel is equipped with rope pressing plate.
The quantity of some rope pressing plates is four, and is distributed centered on reel in semicircular arc.
The grooving for winding rope is machined with the reel outer surface.
One end that the rope stretches out babinet is folded to form the cyclic structure of closing and is fixed with rope buckle, its purpose
It is easy for being connected with other annexes.
The rope is stretched out on one end of babinet limits the part of rope structure annular in shape into cartonning by rope limiting plate
Body.
The hanging ring is fixed on babinet upper surface.
The upper cover is fixed on the upper surface of babinet by hanging ring.
The babinet is fixed on the ground by spud pile.
The spud pile connects fixation with babinet by axis pin.
Using technical scheme make variable damping dynamic energy absorber, by internal helicoid feeding structure by
Disc spring is gradually extruded, as disc spring deflection gradually increases, the axial thrust that disc spring produces also gradually increases, axial thrust effect
In the friction pair being made of some interior outside friction discs, moment of friction is gradually increased, it is achieved thereby that output block power by
It is cumulative big.It is advantageous in that, when vehicle crash occurs, vehicle be subject to and external force Σ F be in whole impact event by
It is cumulative big.According to Newton's second law F=ma, it can be deduced that acceleration (i.e. speed of the vehicle in the whole impact event
Change rate) it is also what is gradually increased.Understood further according to momentum theorem Ft=m Δs v, power that vehicle is subject in impact event with
Vehicle weight is directly proportional, directly proportional to the velocity variations of vehicle, is inversely proportional with colliding duration.Just occur colliding
A small distance internal cause acceleration it is small, so the velocity variations of vehicle are small, this allows for vehicle and is colliding what is just occurred
It is subject to less impact force in a flash, this impact force would not be caused because of cord break without departing from the ultimate strength of rope
Caused vehicle intercepts failure.
Brief description of the drawings
Fig. 1 is the stereogram of title of the present invention；
Fig. 2 is the profile of title of the present invention；
Fig. 3 is babinet of the present invention and spud pile fixed form partial view；
In figure, 1, babinet；2nd, upper cover；3rd, spud pile；4th, pinion gear seat；5th, pinion gear；6th, brake assembly；7th, spline
Axis；8th, left end cap；9th, right end cap；10th, reel；11st, screw thread briquetting；12nd, disc spring；13rd, outside friction disc；14th, inner attrition piece；15、
Rope；16th, adjusting bolt；17th, toothed disc；18th, crank；19th, sender unit stent；20th, sender unit；21、
Sender unit baffle；22nd, rope pressing plate；23rd, wire casing；24th, rope limiting plate；25th, rope is buckled；26th, hanging ring；27th, sell
Axis.
Embodiment
The present invention is specifically described below in conjunction with the accompanying drawings, as shown in Figs. 1-3, a kind of variable damping dynamic energy absorber,
Including babinet 1, the upper cover 2 to match with babinet upper end opening, is provided with spud pile 3 in the tank floor, the babinet
Pinion gear seat 4 is installed on side surface, pinion gear 5 is installed on the pinion gear seat, brake assembly is installed in the babinet
6, the brake assembly is by the splined shaft 7 in babinet, installed in splined shaft left end and the left end that is fixed on babinet
Lid 8, installed in splined shaft right end and be fixed on babinet right end cap 9, be sleeved on splined shaft and be located at left end cap and right end cap
Between reel 10, be sleeved on splined shaft and can along the screw thread briquetting 11 that splined shaft length direction moves, be sleeved on spline
The disc spring 12 that is contacted on axis and with screw thread briquetting, some outside friction discs 13 being movably arranged in reel, some movable sets
Inner attrition piece 14 on splined shaft, be wrapped on reel and one end is fixed on reel, and the other end stretches out the rope 15 of babinet
And can put on right end cap and by threaded adjustment what the adjusting bolt 16 of right end cover length collectively formed, it is some
In the inner attrition piece it is leftmost it is a piece of contacted with disc spring, in some inner attrition pieces rightmost it is a piece of with adjust spiral shell
Bolt touches, and some outside friction discs are sequentially inserted into according to order from left to right between two adjacent inner attrition pieces,
Some outside friction discs form the structure of cross arrangements with some inner attrition pieces, and the inner attrition piece is along splined shaft
Length direction, which slides, cannot surround splined shaft rotation, and the outside friction disc follows spool turns and slided along reel length direction
Dynamic, the external screw thread of the screw thread briquetting and the internal thread of mandrel internal surface screw, and toothed disc is installed with the reel
17, the toothed disc is engaged with pinion gear.Wherein, the crank 18 of driving pinion rotation is installed on the pinion gear seat 4,
Described crank one end can be connected with pinion gear shaft end, and the other end is located at outside babinet；The box inside wall is sent out equipped with signal
Appliance stand 19 is sent, sender unit 20 is installed on the sender unit stent；The reel is sent close to signal
One end of appliance stand is provided with sender unit baffle 21；It is some that the reel 10 is equipped with rope pressing plate 22；It is some
The quantity of the rope pressing plate 22 is four, and is distributed centered on reel in semicircular arc；Add on 10 outer surface of reel
Work is useful for the wire casing 23 of winding rope；1 side surface of babinet, which is equipped with, is used for the rope buckle 24 that rope stretches out babinet；
The rope 15 is stretched out on one end of babinet to be fixed by rope buckle 25；The upper surface of the upper cover 2 is equipped with hanging ring 26；
The spud pile 3 and babinet 1 are connected by axis pin 27 and fixed.
In the technical program, the both ends of splined shaft are separately mounted on left end cap and right end cap, left end cap and right end cap
It is separately mounted to again on babinet so that splined shaft can neither be along axis translation, and cannot be rotated about axis.Reel is installed on a left side
On end cap and right end cap, prevent it from being translated along own axes, but can be around own axis.The external screw thread of screw thread briquetting
Screw on the internal thread of reel；Screw thread briquetting is sleeved on splined shaft, and screw thread briquetting cannot be around own axis, but can
To be translated along own axes；Disc spring is sleeved on splined shaft, not only can be along axis translation, but also can be rotated about axis；Inner attrition piece
It is sleeved on splined shaft, its center carries internal splined hole, matches with the shape of splined shaft, inner attrition piece cannot be around itself axis
Line rotates, but can be translated along own axes；Outside friction disc is installed in mandrel internal surface, and external splines is carried on its excircle
Tooth, matches with the shape of mandrel internal surface, can be along axis translation, but cannot have the rotation relative to reel；Rope is wound
On reel, and one end of which is fixed on reel, the other end is stretched out outside babinet；Adjusting bolt is screwed on right end cap, can be with
Adjust the length for putting in right end cap.
In the technical program, after vehicle crash occurs, rope is drawn out, and band movable reel rotates, the internal thread band of reel
Dynamic screw thread briquetting extrudes disc spring, and then extrude outside friction disc and inner attrition piece to right translation.Since outside friction disc is with reel one
Rotation is played, and inner attrition piece does not rotate, rotating against for both generates moment of friction, then the radius of gyration for passing through reel
As the arm of force, the power for blocking vehicle is generated.
It is pointed out that during rope is drawn out, screw thread briquetting gradually moves right, this is allowed for
The axial force of disc spring is gradually increased, has been finally reached and has blocked the effect that power is stepped up.Initially the size of power is blocked by adjusting
Bolt is saved to adjust.
Vehicle crash is occurring, after rope is drawn out, if necessary to variable damping dynamic energy absorber is resetted, should first by
Adjusting bolt is loosened completely, is then connected to crank in pinion gear, then manual rotation crank, passes through the gear motion of gear
Rope is wound on reel again, adjusting bolt is finally threaded to initial position again, you can reuses variable damping kinetic energy
Absorption plant.
When vehicle crash occurs, rope can be drawn out, and drive spool turns, cause sender unit baffle to occur
It is mobile so that sender unit is started to work, and immediately by the network of cellular carrier to default personnel or department
Signal is sent, so that related personnel or department make vehicle crash event fast reaction and disposal.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, the technology people of the art
Member embodies the principle of the present invention to some variations that some of which part may be made, and belongs to the protection model of the present invention
Within enclosing.
Claims (10)
1. a kind of variable damping dynamic energy absorber, including babinet (1), the upper cover to match with babinet upper end opening (2), the case
Spud pile (3) is installed on body bottom surface, it is characterised in that pinion gear seat (4) is installed on the side surface of the babinet, it is described small
Pinion gear (5) is installed on pinion stand, brake assembly (6) is installed in the babinet, the brake assembly is by positioned at babinet
Interior splined shaft (7), installed in splined shaft left end and the left end cap (8), right installed in splined shaft that is fixed in interior
Hold and be fixed on the right end cap in interior (9), be sleeved on reel on splined shaft and between left end cap and right end cap
(10), be sleeved on splined shaft and can along the screw thread briquetting (11) that splined shaft length direction moves, be sleeved on splined shaft simultaneously
The disc spring (12) that is contacted with screw thread briquetting, some outside friction discs (13) being movably arranged in reel, some movable sets are in flower
Inner attrition piece (14) on key axis, be wrapped on reel and one end be fixed on the other end on reel stretch out the rope (15) of babinet with
And can put on right end cap and by threaded adjustment what the adjusting bolt (16) of right end cover length collectively formed, Ruo Gansuo
State in inner attrition piece it is leftmost it is a piece of contacted with disc spring, a piece of and adjusting bolt of rightmost connects in some inner attrition pieces
Touch, some outside friction discs are sequentially inserted into according to order from left to right between two adjacent inner attrition pieces, Ruo Gansuo
The structure that outside friction disc forms cross arrangement with some inner attrition pieces is stated, the inner attrition piece can be along spline shaft length side
Splined shaft rotation cannot be surrounded to sliding, the outside friction disc can follow mandrel internal surface to rotate and slided along reel length direction
It is dynamic, the external screw thread of the screw thread briquetting and internal thread of mandrel internal surface screws and the screw thread briquetting is sleeved on splined shaft simultaneously
It can move and can not be rotated along splined shaft along splined shaft length direction, toothed disc (17) is installed with the reel, it is described
Toothed disc is engaged with pinion gear.
2. variable damping dynamic energy absorber according to claim 1, it is characterised in that installed on the pinion gear seat (4)
There is pinion gear, the pinion gear shaft end can be connected with crank (18) one end.
3. variable damping dynamic energy absorber according to claim 1, it is characterised in that set on babinet (1) madial wall
There is sender unit stent (19), sender unit (20), the reel are installed on the sender unit stent
(10) one end is provided with sender unit baffle (21).
4. variable damping dynamic energy absorber according to claim 1, it is characterised in that the reel (10) is equipped with rope
Pressing plate (22) is some.
5. rope pressing plate according to claim 4, it is characterised in that the quantity of some rope pressing plates (22) is four
It is a, and be distributed centered on reel in semicircular arc.
6. variable damping dynamic energy absorber according to claim 1, it is characterised in that add on reel (10) outer surface
Work is useful for the grooving (23) of winding rope.
7. variable damping dynamic energy absorber according to claim 1, it is characterised in that set on babinet (1) side surface
It is useful for the opening that rope (15) stretches out babinet.
8. rope according to claim 7, it is characterised in that one end that the rope (15) stretches out babinet is folded to form closing
Cyclic structure and be buckled that (25) are fixed, and the purpose is to other annexes easy to being connected with rope.
9. rope according to claim 7, it is characterised in that the rope, which is stretched out on one end of babinet, passes through rope limiting plate
(24) part for limiting rope structure annular in shape enters babinet.
10. variable damping dynamic energy absorber according to claim 1, it is characterised in that the hanging ring (26) is fixed on case
On body upper surface, the upper cover (2) is fixed on the upper surface of babinet (1) by hanging ring (26), and the babinet (1) passes through fixation
Stake (3) fixes on the ground, and the spud pile (3) and babinet (1) are connected by axis pin (27) and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711331376.0A CN108004977A (en) | 2017-12-13 | 2017-12-13 | Variable damping dynamic energy absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711331376.0A CN108004977A (en) | 2017-12-13 | 2017-12-13 | Variable damping dynamic energy absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108004977A true CN108004977A (en) | 2018-05-08 |
Family
ID=62058707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711331376.0A Pending CN108004977A (en) | 2017-12-13 | 2017-12-13 | Variable damping dynamic energy absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108004977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733730A (en) * | 2020-07-10 | 2020-10-02 | 李秀枝 | Anti-break pass card for toll station |
| CN117364616A (en) * | 2023-12-08 | 2024-01-09 | 山东大学 | Anchor rope type energy consumption device and bridge |
-
2017
- 2017-12-13 CN CN201711331376.0A patent/CN108004977A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733730A (en) * | 2020-07-10 | 2020-10-02 | 李秀枝 | Anti-break pass card for toll station |
| CN117364616A (en) * | 2023-12-08 | 2024-01-09 | 山东大学 | Anchor rope type energy consumption device and bridge |
| CN117364616B (en) * | 2023-12-08 | 2024-03-12 | 山东大学 | Anchor rope type energy consumption device and bridge |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180508 |