CN107101836A - Flexible leg test device and method of testing - Google Patents
Flexible leg test device and method of testing Download PDFInfo
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- CN107101836A CN107101836A CN201710192006.7A CN201710192006A CN107101836A CN 107101836 A CN107101836 A CN 107101836A CN 201710192006 A CN201710192006 A CN 201710192006A CN 107101836 A CN107101836 A CN 107101836A
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- flexible leg
- test
- coaster
- swing arm
- support
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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
- G01M17/007—Wheeled or endless-tracked 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Present invention is disclosed a kind of flexible leg test device, including：Base assembly, reverse impact test assembly and SWING ARM TEST component.Reverse impact test assembly is arranged on base assembly, and reverse impact test assembly carries out reverse impact experiment to flexible leg.SWING ARM TEST component is arranged on base assembly, and SWING ARM TEST component carries out SWING ARM TEST to flexible leg.Present invention further teaches a kind of flexible leg method of testing, using foregoing flexible leg test device, the flexible leg method of testing includes：Flexible leg is suspended on reverse impact test assembly, reverse impact experiment is carried out to flexible leg using reverse impact test assembly；Flexible leg is suspended on SWING ARM TEST component, SWING ARM TEST is carried out to flexible leg using SWING ARM TEST component.
Description
Technical field
The present invention relates to Automobile Measuring Techniques field, more specifically to the test device and method of testing of flexible leg.
Background technology
In field of vehicle safety, flexible leg (Flex-PLI) test is an important vehicle safety test event.
Flexible leg is included in pedestrian protection test leg type by regulations such as ECE R127, Euro-NCAP, and regulation flexible leg needs to be determined
The demarcation of phase, to ensure that its performance meets laws and regulations requirement.The dynamic calibration of flexible leg is demarcated comprising swing arm demarcation and reverse impact
Two, need after every 10 vehicle tests of laws and regulations requirement to need reversely to be rushed after carrying out swing arm demarcation, every 30 vehicle tests
Hit demarcation.Reverse impact experiment and SWING ARM TEST by flexible leg can carry out reverse impact demarcation and swing arm mark to flexible leg
It is fixed.
At present, domestic and international known flexible leg dynamic calibration equipment, the i.e. testing equipment of flexible leg has two kinds：One kind is certainly
Self dynamic calibration equipment with emitter, another is the demarcation branch reequiped using existing leg type emitter
Frame.The self dynamic calibration equipment for carrying electromagnetic drive coaster possesses independent power source, with existing pedestrian protection test
Leg type emitter is functionally repeated, and causes the waste of resource, and price is very expensive, and volume is big, complex operation, need
Strongly electricity to support, need computer control etc., once breaking down, repair cumbersome.Demarcation support is will be existing
Leg type emitter is reequiped and counterweight, is directly impinging on flexible leg, exists during demarcation after the quality for reaching laws and regulations requirement
The phenomenons such as speed is unstable, impact head shake, impact position deviation is big, it is not agile to break off relations, damage leg type emitter.Existing
Solution in, swing arm demarcation and reverse impact demarcation are carried out separately, although or being integrated in same calibration facility
On, but need, by that after removable parts part, could realize that another dynamic calibration is tested, to lead to not set by same experiment
It is standby to complete two kinds of rating tests so that operation becomes complicated.
The content of the invention
The present invention is directed to propose flexible leg test device and the test side of a kind of integrated reverse impact test and swing arm test
Method.
According to one embodiment of the invention, a kind of flexible leg test device is proposed, including：Base assembly, reverse impact examination
Test component and SWING ARM TEST component.Reverse impact test assembly is arranged on base assembly, and reverse impact test assembly is to flexibility
Leg carries out reverse impact experiment.SWING ARM TEST component is arranged on base assembly, and SWING ARM TEST component carries out swing arm to flexible leg
Experiment.
In one embodiment, base assembly includes：Base, stand type support, horizontal stand and slide rail.Stand type support is installed
On base, stand type support includes column and crossbeam, and column is arranged on base, and crossbeam is arranged on column.Horizontal stand is pacified
On base, horizontal stand is passed through between stand type support.Slide rail is arranged on horizontal stand.
In one embodiment, reverse impact test assembly includes：Impact test hanger, coaster, velocity measurement mechanisms ease up
Punch mechanism.Impact test hanger is arranged on the first crossbeam of stand type support, impact test hanger suspension flexible leg.Coaster
Moved along slide rail.Velocity measurement mechanisms measure the speed of coaster.Buffer gear is arranged on base assembly and coaster, and buffer gear slows down
The speed of coaster.
In one embodiment, impact test hanger includes：Hanger seat, L-type hook and unhook spring.Hanger seat peace
On first crossbeam.L-type hook is rotatably installed on hanger seat by bearing, L-type hook suspension flexible leg.The of unhook spring
One end is fixed on first crossbeam, and the second end of unhook spring is fixed on L-type hook.
In one embodiment, velocity measurement mechanisms include：Velocity rod and tachymeter.Velocity rod is arranged on coaster.Tachymeter
On base assembly.The position of tachymeter causes coaster when with flexible leg Contact -impact, and reference test bar passes through tachymeter, with
Record the speed of the impact moment coaster of coaster and flexible leg.
In one embodiment, tachymeter includes：Tachymeter support, test the speed transmitter and the receiver that tests the speed.Tachymeter branch
Frame is arranged on the second cross beam of stand type support, and tachymeter support is in "door" type.The transmitter that tests the speed is arranged on tachymeter support
First side.The receiver that tests the speed is arranged on the second side of tachymeter support, and test the speed transmitter and the receiver that tests the speed are aligned with each other, and are led to
Cross optical fiber connection.Velocity rod passes through from the "door" type opening of tachymeter support, by transmitter and the receiver progress of testing the speed of testing the speed
Test the speed.
In one embodiment, buffer gear includes：Bumping-buffer, damping buffer, buffer stopper and bounce-back obstruction device.
Bumping-buffer is arranged on the first end of coaster.Damping buffer is arranged on the first end of horizontal stand.Buffer stopper is arranged on water
Second end of flat support.The obstruction device that rebounds is arranged in stand type support.
In one embodiment, bounce-back obstruction device includes：Obstruction device seat, obstruction bar and closing spring.Obstruction device seat is installed
On the second cross beam of stand type support.Stop bar to be arranged on obstruction device seat by axis of rotation, the lower end for stopping bar is tilted, and is inclined
Oblique direction is consistent with the direction of advance of coaster.Closing spring is connected between second cross beam and the upper end for stopping bar, closure
Spring make it that stopping bar is in initial position to bar offer spring force is stopped.
In one embodiment, SWING ARM TEST component includes：SWING ARM TEST hanger, draw high mechanism and impact head.Swing arm
Test hanger to be arranged on the second cross beam of stand type support, the shank end of flexible leg is suspended on SWING ARM TEST hanger.Draw
Rise mechanism to be arranged in stand type support, machine is drawn high in the thigh end of flexible leg by lifting and relieving mechanism is connected to and draws high mechanism
Structure can draw high and lift.Impact head is arranged in stand type support.
In one embodiment, drawing high mechanism includes：Draw high arm, drawstring, assembly pulley and rope-swinging device.The upper end for drawing high arm turns
It is dynamic to be connected in stand type support.The first end of drawstring is connected to the lower end for drawing high arm, and the second end of drawstring is connected by assembly pulley
To rope-swinging device.Assembly pulley is arranged in stand type support.Rope-swinging device is arranged in stand type support, rope-swinging device energy locking.
In one embodiment, lift and relieving mechanism includes：Sliding pallet support, slipper bracket, release handle and return bullet
Spring mechanism.Sliding pallet support is arranged on the lower end for drawing high arm.Slipper bracket is arranged on sliding pallet support, and slipper bracket can be along sliding pallet branch
Frame is slided.Release handle is connected to slipper bracket.Return spring mechanism includes return spring, is oriented to slotware and guide rod, is oriented to
Slotware is arranged on and drawn high on arm, and guide rod is through being oriented to slotware and being connected to slipper bracket, and one end of return spring is fixed on drawing
Rise on arm, the other end of return spring is connected to guide rod.Return spring mechanism applies spring force to slipper bracket so that slide
Bracket is moved to lift flexible leg along sliding pallet support to the direction close to flexible leg, and flexible leg, which is followed, to be drawn high arm and lift, and release is drawn
Hand is pulled, and slipper bracket slides towards the direction away from flexible leg along sliding pallet support and discharges flexible leg.
In one embodiment, there are suspension ring on base assembly.
According to one embodiment of the invention, a kind of flexible leg method of testing is proposed, using foregoing flexible leg test device,
The flexible leg method of testing includes：
Flexible leg is suspended on reverse impact test assembly, flexible leg carried out using reverse impact test assembly reverse
Impact test；
Flexible leg is suspended on SWING ARM TEST component, SWING ARM TEST is carried out to flexible leg using SWING ARM TEST component.
In one embodiment, reverse impact experiment is carried out to flexible leg using reverse impact test assembly includes：
By flexible leg being suspended on L-type hook vertically；
Coaster is accelerated into predetermined speed, coaster is moved along slide rail；
Coaster impacts the speed for impacting moment coaster of flexible leg, record coaster and flexible leg with art skating state；
L-type, which is hooked in the presence of unhook spring, to be rotated up and discharges flexible leg in the given time, and flexible leg is with parabolic
Shape flight forward；
Buffer gear enters row buffering to coaster and prevents coaster from rebounding.
In one embodiment, predetermined speed is 40km/h, and the scheduled time is 10ms.
In one embodiment, carrying out SWING ARM TEST to flexible leg using SWING ARM TEST component includes：
Counterweight is carried out to the thigh end of flexible leg；
The shank end of flexible leg is suspended on SWING ARM TEST hanger, by the thigh end of flexible leg by lifting and discharging
Mechanism, which is connected to, draws high arm；
Rope-swinging device is shaken, rope-swinging device drives drawstring make it that drawing high arm lifts, flexible leg, which is followed, to be drawn high arm and lift；
Draw high arm and be raised up to predetermined angular, pull release handle, lift and relieving mechanism release flexible leg；
Flexible leg is around the free bottom of SWING ARM TEST hanger and shock head.
In one embodiment, predetermined angular is upward 15 ° of level.
The flexible leg test device and method of testing of the present invention demarcate reverse impact the experimental rig collection demarcated with swing arm
It is integrally formed, two sets of test parts meet laws and regulations requirement and are arranged on simultaneously on base assembly.Part need not be changed with regard to energy
Enough realize two dynamic calibration experiments.The flexible leg test device itself does not have power source, is launched by means of existing leg type
Device is as power source, by the way of Mechanical course, is supported without forceful electric power.With reliability height, highly versatile, operation letter
The advantages of list, small volume, relatively low cost, empirical tests, the test device can complete well flexible leg swing arm and reversely
Impact two dynamic calibrations, and favorable repeatability.
Brief description of the drawings
The above and other feature of the present invention, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, identical reference represents identical feature all the time in the accompanying drawings, wherein：
Fig. 1 a and Fig. 1 b disclose the structure chart of the flexible leg test device according to one embodiment of the invention.
The installation that Fig. 2 discloses impact test hanger in the flexible leg test device according to one embodiment of the invention is shown
It is intended to.
Fig. 3 discloses the structure chart of velocity measurement mechanisms in the flexible leg test device according to one embodiment of the invention.
Fig. 4 discloses the structure chart for the obstruction device that rebounded in the flexible leg test device according to one embodiment of the invention.
Fig. 5 disclose lifted in the flexible leg test device according to one embodiment of the invention and relieving mechanism structure
Figure.
Fig. 6 discloses the signal that reverse impact experiment is carried out according to the flexible leg test device of one embodiment of the invention
Figure.
Fig. 7 discloses the schematic diagram that SWING ARM TEST is carried out according to the flexible leg test device of one embodiment of the invention.
Embodiment
Fig. 1 a and Fig. 1 b disclose the structure chart of the flexible leg test device according to one embodiment of the invention.As schemed
Show, the flexible leg test device includes：Base assembly, reverse impact test assembly and SWING ARM TEST component.Reverse impact is tested
Component is arranged on base assembly, and reverse impact test assembly carries out reverse impact experiment to flexible leg.SWING ARM TEST component is pacified
On base assembly, SWING ARM TEST component carries out SWING ARM TEST to flexible leg.
With reference to shown in Fig. 1 a and Fig. 1 b, base assembly includes：Base 101, stand type support 102, horizontal stand 103, slide rail
104 and suspension ring 105.Stand type support 102 is arranged on base 101, and stand type support 102 includes column and crossbeam, and column 121 is installed
On base, crossbeam is arranged on column 121.In the illustrated embodiment, column 121 is in " A " font structure, two columns
121 are separately mounted to the both sides of base 101.Crossbeam includes first crossbeam 122 and second cross beam 123, first crossbeam 122 and second
Crossbeam 123 is installed between two columns 121 respectively.The position of first crossbeam 122 is higher than second cross beam 123.Level branch
Frame 103 is arranged on base 101 and positioned at the top of base, and horizontal stand 103 is passed through between two stand type support 102.Water
Flat support 103 possesses the supporting leg for support, and supporting leg is arranged on base 101.Slide rail 104 is arranged on horizontal stand 103.
In the embodiment of diagram, horizontal stand 103 is two, and slide rail 104 is also two, and two slide rails 104 are separately mounted to two water
The inner side of flat support 103.The base assembly also includes suspension ring 105, and suspension ring 105 are arranged on the top of stand type support 102.
With reference to shown in Fig. 1 a and Fig. 1 b, reverse impact test assembly includes：Impact test hanger 201, coaster 202, survey
Fast mechanism and buffer gear.
Impact test hanger 201 is arranged on the first crossbeam 122 of stand type support 102, and impact test hanger 201 hangs
Hang flexible leg.Fig. 2 discloses the installation of impact test hanger in the flexible leg test device according to one embodiment of the invention
Schematic diagram.As shown in Fig. 2 impact test hanger 201 includes：Hanger seat 211, L-type hook 212 and unhook spring 213.Suspension
Device seat 211 is arranged on first crossbeam 122.L-type hook 212 is rotatably installed on hanger seat 211 by bearing 214, L-type hook
212 suspension flexible legs.The first end of unhook spring 213 is fixed on first crossbeam 122, in the illustrated embodiment, unhook bullet
The first end of spring 213 is fixed on the top of first crossbeam 122.Second end of unhook spring 213 is fixed on L-type hook 212.
Coaster 202 is arranged on slide rail 104 and moved along slide rail 104.Velocity measurement mechanisms measure the speed of coaster 202.Fig. 3 takes off
The structure chart of velocity measurement mechanisms in the flexible leg test device according to one embodiment of the invention is shown.As shown in figure 3, velocity measurement mechanisms
Including：Velocity rod 241 and tachymeter 242.Velocity rod 241 is arranged on coaster 202.Tachymeter 242 is arranged on base assembly.
Installation site of the tachymeter 242 on base assembly causes coaster 202 when with flexible leg Contact -impact, and reference test bar 241 is just
By tachymeter 241, so as to the speed for the impact moment coaster for recording coaster and flexible leg.In the illustrated embodiment,
The structure and mounting means of tachymeter 242 are as follows：Tachymeter includes tachymeter support 243, test the speed transmitter 244 and reception of testing the speed
Device 245.Tachymeter support 243 is arranged on the second cross beam 123 of stand type support, and tachymeter support 243 is in "door" type, centre tool
There is opening.The transmitter 244 that tests the speed is arranged on the first side of tachymeter support 243.The receiver 245 that tests the speed is arranged on tachymeter support
243 the second side, test the speed transmitter 244 and the receiver 245 that tests the speed are aligned with each other so that what the transmitter 244 that tests the speed was launched tests the speed
Optical signal can be received through the "door" type opening receiver 245 that be tested the speed of tachymeter support 243.Test the speed transmitter 244 and survey
Fast receiver 245 is connected by optical fiber 246, and optical fiber 246 is bypassed on the outside of the "door" type opening of tachymeter support 243.Test the speed
Bar 241 passes through from the "door" type opening of tachymeter support 243, and by testing the speed, transmitter 244 and the receiver 245 that tests the speed are surveyed
Speed.The principle that tachymeter can be tested the speed using the principle or grating encoding of laser velocimeter is realized.
Buffer gear is arranged on base assembly and coaster, and buffer gear slows down the speed of coaster.In Fig. 1 a and Fig. 1 b institutes
In the embodiment shown, buffer gear includes：Bumping-buffer 261, installed in the first end of coaster 202.The first end of coaster 202
It is the front end of coaster direction of advance, the first end of coaster 202 is hit with flexible leg to be contacted.In one embodiment, damping of shocks
Part 261 is honeycomb aluminum.Damping buffer 262, installed in the first end of horizontal stand 103.The first end of horizontal stand 103 is edge
The end of the direction of advance of coaster 202.Buffer stopper 263, installed in the second end of horizontal stand.Rebound obstruction device 264, installed in vertical
On formula support 102.Fig. 4 discloses the structure for the obstruction device that rebounded in the flexible leg test device according to one embodiment of the invention
Figure.As illustrated, bounce-back obstruction device 264 includes：Obstruction device seat 271, obstruction bar 272 and closing spring 273.Obstruction device seat 271
On the second cross beam 123 of stand type support.Bar 272 is stopped to be arranged on obstruction device seat 271 by axis of rotation.In diagram
Embodiment in, can be divided into by stopping bar 272 by two sections, and epimere keeps vertical direction substantially, and the lower end for stopping bar is tilted, inclined
Direction is consistent with the direction of advance of coaster, so that the direction that the hypomere for stopping bar is directed towards coaster advance is tilted, that is, exists
In diagram, the angle between lower end and upper end is obtuse angle, i.e., angle is more than 90 °.Stop bar 272 centre position, i.e., epimere with
The intersection of hypomere is provided with bearing, and stopping bar 272 can rotate around this bearing.Closing spring 273 is connected to second cross beam
Between 123 and the upper end of obstruction bar 272, closing spring 273 make it that stopping bar is in initial position to bar offer spring force is stopped.
The initial position for stopping bar 272 is position as shown in Figure 4, and the epimere for stopping bar 272 substantially remains in vertical state.Work as coaster
When the hypomere for stopping bar 272 is contacted with the forward direction motion of diagram, due to stopping the hypomere of bar 272 before coaster
Enter direction inclination, therefore stop can't be produced to the advance of coaster.Also, coaster, which advances, drives the hypomere for stopping bar 272 to move
It is dynamic, drive obstruction bar 272 to rotate clockwise.After hypomere disengaging of the coaster with stopping bar 272, in the effect of closing spring 273
Under, stop bar 272 and reset to reset condition, that is, be returned to the generally vertical state of epimere (state shown in Fig. 4).When coaster with
During the rebound direction motion of diagram, coaster stops the hypomere of bar 272 from reversely touching, and it is inverse now to stop the hypomere of bar 272
The rebound direction for coaster is tilted.Coaster resilience make it that stopping bar 272 rotates counterclockwise, but obstruction bar 272 is rotated counterclockwise very
After short distance, the epimere for stopping bar 272 will be caused to be contacted with damping blob of viscose 274, will not be counterclockwise again so as to stop bar 272
Rotate.Now, the hypomere for stopping bar 272 can withstand the resilience of coaster, play a part of stopping bounce-back.In the embodiment of diagram
In, the damping blob of viscose 274 being arranged between obstruction bar 272 and second cross beam 123 can mitigate obstruction bar 272 and rotate counterclockwise
When and second cross beam 123 between collision, while damp blob of viscose 274 can also play a part of buffering.
With continued reference to shown in Fig. 1 a and Fig. 1 b, SWING ARM TEST component includes：SWING ARM TEST hanger 301, draw high mechanism and
Impact head 303.
SWING ARM TEST hanger 301 is arranged on the second cross beam 123 of stand type support 102, the shank end suspension of flexible leg
On SWING ARM TEST hanger 301.In one embodiment, SWING ARM TEST hanger 301 has bearing, SWING ARM TEST hanger
301 enable to flexible leg to be rotated around bearing.
Mechanism is drawn high in the stand type support 102, the thigh end of flexible leg is by lifting and relieving mechanism 304 is connected to
Mechanism is drawn high, mechanism is drawn high and can draw high and lift.In the illustrated embodiment, drawing high mechanism includes：Draw high arm 321, drawstring 322,
Assembly pulley 323 and rope-swinging device 324.The upper end for drawing high arm 321 is rotatably connected in stand type support 102, in the illustrated embodiment,
The upper end for drawing high arm 321 is rotatably connected on the column 121 of stand type support 102.The lower end of arm 321 is drawn high by lifting and discharging
Mechanism 304 is connected with the thigh end of flexible leg.The first end of drawstring 322 is connected to the lower end for drawing high arm 321, the of drawstring 322
Two ends are connected to rope-swinging device 324 by assembly pulley 323.Assembly pulley 323 is arranged in stand type support.In the illustrated embodiment,
Assembly pulley 323 includes several fixed pulleys, and column 121 of the fixed pulley along stand type support 102 arrange so that drawstring 322 is along column
121 arrangements.Rope-swinging device 324 is arranged in stand type support 102, in the illustrated embodiment, and rope-swinging device 324 is arranged on stand type support
On 102 column 121, rope-swinging device 324 can locking.Rope-swinging device 324 is shaken, can be driven and drawn via assembly pulley 323 by drawstring 322
Rise arm 321 to lift or sagging, drawing high after arm 321 is raised up to precalculated position, locking rope-swinging device 324 will be will draw high arm 321 and soft
Property leg rests on predetermined position.Impact head 303 is arranged in stand type support 102.In the illustrated embodiment, impact head 303
Between two columns 121 of stand type support 102, positioned at the lower section of horizontal stand 103.The material and chi of impact head 303
The very little requirement for meeting swing arm rating test.
Fig. 5 disclose lifted in the flexible leg test device according to one embodiment of the invention and relieving mechanism structure
Figure.As shown in figure 5, lifting and relieving mechanism 304 includes：Sliding pallet support 341, slipper bracket 342, release handle 343 and return
Spring mechanism.Sliding pallet support 341 is arranged on the lower end for drawing high arm 321.Slipper bracket 342 is arranged on sliding pallet support 341, is slided
Bracket 342 can be slided along sliding pallet support 341.In the illustrated embodiment, two groups of slide rails 347 are mounted with sliding pallet support 341, it is sliding
Dynamic bracket 342 can be slided along slide rail 347.Release handle 343 is connected to slipper bracket 342.Return spring mechanism includes return
Spring 344, guiding slotware 345 and guide rod 346.Guiding slotware 345, which is arranged on, to be drawn high on arm 321.In the illustrated embodiment,
The side of guide rod is provided with guide groove, and guide groove constitutes the slide assemblies being mutually matched with slide rail 347, and guide rod 346 is passed through and led
To slotware 345 and it is connected to slipper bracket 342.One end of return spring 344, which is fixed on, draws high on arm 321, return spring 344
The other end is connected on guide rod 346.The return spring 344 of return spring mechanism is applied by guide rod 346 to slipper bracket 342
Plus spring force so that slide direction of the frame of support 342 along sliding pallet support to close flexible leg 400 and move and rest on flexible leg 400
Lower section to lift flexible leg 400.So, flexible leg 400, which can be followed, draws high arm 321 and lifts and rested on predetermined position
Put.Release handle 343 is pulled, for example in the illustrated embodiment, release handle 343 is pulled to the left, slipper bracket 342 is along cunning
Support is ask to be slided towards the direction away from flexible leg.After slipper bracket 342 departs from flexible leg 400, flexible leg 400 is released.It is soft
The property free bottom of leg 400.
The present invention also proposes a kind of flexible leg method of testing, using flexible leg test device as the aforementioned, including：
Flexible leg is suspended on reverse impact test assembly, flexible leg carried out using reverse impact test assembly reverse
Impact test；
Flexible leg is suspended on SWING ARM TEST component, SWING ARM TEST is carried out to flexible leg using SWING ARM TEST component.
The flexible leg method of testing of the present invention can complete reverse impact rating test and swing arm mark in same equipment
Fixed experiment, the replacing without carrying out part.
Fig. 6 discloses the signal that reverse impact experiment is carried out according to the flexible leg test device of one embodiment of the invention
Figure.With reference to shown in Fig. 6, the process that flexible leg test device of the invention carries out reverse impact rating test is as follows：Using reverse
Impact test component carries out reverse impact experiment to flexible leg,
By flexible leg being suspended on L-type hook vertically.
Coaster is accelerated using existing leg type emitter, coaster is accelerated into predetermined speed, coaster is along slide rail
It is mobile.In one embodiment, coaster is accelerated to 40km/h by leg type emitter.
Coaster impacts flexible leg with art skating state, and velocity measurement mechanisms record the impact moment coaster of coaster and flexible leg
Speed.In one embodiment, at the time of coaster impacts flexible leg, velocity rod is just past tachymeter, by tachymeter and survey
Fast bar measures and records the speed of coaster.
L-type, which is hooked in the presence of unhook spring, to be rotated up and discharges flexible leg in the given time, and flexible leg is with parabolic
Shape flight forward.In the presence of unhook spring, L-type hook is rotated up, when more than rotation to the horizontal level of L-type hook, no
Flexible leg is hooked again, and flexible leg is released.In one embodiment, the scheduled time is 10ms, i.e. flexible leg impacts by coaster
It is released in 10ms afterwards and with parabolical flight forward.
Buffer gear enters row buffering to coaster and prevents coaster from rebounding.Bumping-buffer in buffer gear coaster with it is soft
Property leg impact when play cushioning effect.Damping buffer positioned at horizontal stand first end is run to horizontal stand first in coaster
Play a part of damping buffering during end.Bounce-back obstruction device prevents coaster from rebounding to protect leg type transmitter.Positioned at horizontal stand
The buffer stopper at two ends plays cushioning effect when coaster is retreated to the second end of horizontal stand.
Fig. 7 discloses the schematic diagram that SWING ARM TEST is carried out according to the flexible leg test device of one embodiment of the invention.Ginseng
Examine shown in Fig. 7, the process that flexible leg test device of the invention carries out swing arm rating test is as follows：Use SWING ARM TEST component pair
Flexible leg carries out SWING ARM TEST,
Counterweight is carried out to the thigh end of flexible leg, counterweight is carried out according to the laws and regulations requirement of swing arm rating test.
The shank end of flexible leg is suspended on SWING ARM TEST hanger, by the thigh end of flexible leg by lifting and discharging
Mechanism, which is connected to, draws high arm.
Rope-swinging device is shaken, rope-swinging device drives drawstring make it that drawing high arm lifts.Now flexible leg is by lifting and relieving mechanism support
Lift, flexible leg, which is followed, to be drawn high arm and lift.
Draw high arm and be raised up to predetermined angular, pull release handle, lift and relieving mechanism release flexible leg.In an implementation
In example, predetermined angular is upward 15 ° of level.After predetermined angular is raised to, release handle is pulled, flexible leg is released and free
The bottom.
Flexible leg is around the free bottom of SWING ARM TEST hanger and shock head.
The flexible leg test device and method of testing of the present invention demarcate reverse impact the experimental rig collection demarcated with swing arm
It is integrally formed, two sets of test parts meet laws and regulations requirement and are arranged on simultaneously on base assembly.Part need not be changed with regard to energy
Enough realize two dynamic calibration experiments.The flexible leg test device itself does not have power source, is launched by means of existing leg type
Device is as power source, by the way of Mechanical course, is supported without forceful electric power.With reliability height, highly versatile, operation letter
The advantages of list, small volume, relatively low cost, empirical tests, the test device can complete well flexible leg swing arm and reversely
Impact two dynamic calibrations, and favorable repeatability.
Above-described embodiment, which is available to, to be familiar with person in the art to realize or using the present invention, be familiar with this area
Personnel can make various modifications or change, thus this to above-described embodiment without departing from the present invention in the case of the inventive idea
The protection domain of invention is not limited by above-described embodiment, and should meet inventive features that claims mention most
On a large scale.
Claims (17)
1. a kind of flexible leg test device, it is characterised in that including：
Base assembly；
Reverse impact test assembly, on base assembly, reverse impact test assembly carries out reverse impact examination to flexible leg
Test；
SWING ARM TEST component, on base assembly, SWING ARM TEST component carries out SWING ARM TEST to flexible leg.
2. flexible leg test device as claimed in claim 1, it is characterised in that the base assembly includes：
Base；
Stand type support, stand type support is arranged on base, and stand type support includes column and crossbeam, and column is arranged on base, horizontal
Beam is arranged on column；
Horizontal stand, horizontal stand is arranged on base, and horizontal stand is passed through between stand type support；
Slide rail, slide rail is arranged on horizontal stand.
3. flexible leg test device as claimed in claim 2, it is characterised in that the reverse impact test assembly includes：
Impact test hanger, on the first crossbeam of stand type support, impact test hanger suspension flexible leg；
Coaster, coaster is moved along slide rail；
Velocity measurement mechanisms, velocity measurement mechanisms measure the speed of coaster；
Buffer gear, on base assembly and coaster, buffer gear slows down the speed of coaster.
4. flexible leg test device as claimed in claim 3, it is characterised in that the impact test hanger includes：
Hanger seat, on first crossbeam；
L-type hook, is rotatably installed on hanger seat by bearing, L-type hook suspension flexible leg；
Unhook spring, the first end of unhook spring is fixed on first crossbeam, and the second end of unhook spring is fixed on L-type hook.
5. flexible leg test device as claimed in claim 3, it is characterised in that the velocity measurement mechanisms include：
Velocity rod, on coaster；
Tachymeter, on base assembly；
The position of the tachymeter causes coaster when with flexible leg Contact -impact, and reference test bar passes through the tachymeter, to record
The speed of the impact moment coaster of coaster and flexible leg.
6. flexible leg test device as claimed in claim 5, it is characterised in that the tachymeter includes：
Tachymeter support, on the second cross beam of stand type support, tachymeter support is in "door" type；
Test the speed transmitter, installed in the first side of tachymeter support；
Tested the speed receiver, installed in the second side of tachymeter support, and test the speed transmitter and the receiver that tests the speed are aligned with each other, and are passed through
Optical fiber is connected；
The velocity rod passes through from the "door" type opening of tachymeter support, and by testing the speed, transmitter and the receiver that tests the speed are surveyed
Speed.
7. flexible leg test device as claimed in claim 3, it is characterised in that the buffer gear includes：
Bumping-buffer, installed in the first end of coaster；
Damping buffer, installed in the first end of horizontal stand；
Buffer stopper, installed in the second end of horizontal stand；
Rebound obstruction device, in stand type support.
8. flexible leg test device as claimed in claim 7, it is characterised in that the bounce-back obstruction device includes：
Obstruction device seat, on the second cross beam of stand type support；
Bar is stopped, is arranged on by axis of rotation on obstruction device seat, the lower end for stopping bar is tilted, before inclined direction and coaster
Enter direction consistent；
Closing spring, is connected between second cross beam and the upper end for stopping bar, and closing spring causes to bar offer spring force is stopped
Stop bar and be in initial position.
9. flexible leg test device as claimed in claim 2, it is characterised in that the SWING ARM TEST component includes：
SWING ARM TEST hanger, on the second cross beam of stand type support, the shank end of flexible leg is suspended on SWING ARM TEST and hanged
In hanging device；
Draw high mechanism, in stand type support, the thigh end of flexible leg by lifting and relieving mechanism is connected to and draws high mechanism,
Draw high mechanism and can draw high and lift；
Impact head, in stand type support.
10. flexible leg test device as claimed in claim 9, it is characterised in that the mechanism that draws high includes：
Arm is drawn high, the upper end for drawing high arm is rotatably connected in stand type support；
Drawstring, the first end of drawstring is connected to the lower end for drawing high arm, and the second end of drawstring is connected to rope-swinging device by assembly pulley；
Assembly pulley, in stand type support；
Rope-swinging device, in stand type support, rope-swinging device energy locking.
11. flexible leg test device as claimed in claim 10, it is characterised in that described to lift and relieving mechanism includes：
Sliding pallet support, installed in the lower end for drawing high arm；
Slipper bracket, on sliding pallet support, slipper bracket can be along sliding pallet bracket slide；
Release handle, is connected to slipper bracket；
Return spring mechanism, including return spring, guiding slotware and guide rod, guiding slotware, which is arranged on, to be drawn high on arm, guide rod
Through being oriented to slotware and being connected to slipper bracket, one end of return spring, which is fixed on, draws high on arm, and the other end of return spring connects
It is connected to guide rod；
Wherein return spring mechanism applies spring force to slipper bracket so that slipper bracket is along sliding pallet support to close to flexible leg
Direction movement is to lift flexible leg, and flexible leg, which is followed, to be drawn high arm and lift, and release handle is pulled, and slipper bracket is along sliding pallet support court
Slide and discharge flexible leg in direction away from flexible leg.
12. flexible leg test device as claimed in claim 1, it is characterised in that there are suspension ring on the base assembly.
13. a kind of flexible leg method of testing, using the flexible leg test device as any one of claim 1-12, it is special
Levy and be, including：
Flexible leg is suspended on reverse impact test assembly, reverse impact is carried out to flexible leg using reverse impact test assembly
Experiment；
Flexible leg is suspended on SWING ARM TEST component, SWING ARM TEST is carried out to flexible leg using SWING ARM TEST component.
14. flexible leg method of testing as claimed in claim 13, it is characterised in that using reverse impact test assembly to flexibility
Leg, which carries out reverse impact experiment, to be included：
By flexible leg being suspended on L-type hook vertically；
Coaster is accelerated into predetermined speed, coaster is moved along slide rail；
Coaster impacts the speed for impacting moment coaster of flexible leg, record coaster and flexible leg with art skating state；
L-type, which is hooked in the presence of unhook spring, to be rotated up and discharges flexible leg in the given time, flexible leg with parabolical to
Preceding flight；
Buffer gear enters row buffering to coaster and prevents coaster from rebounding.
15. flexible leg method of testing as claimed in claim 14, it is characterised in that the predetermined speed is 40km/h, described
The scheduled time is 10ms.
16. flexible leg method of testing as claimed in claim 13, it is characterised in that entered using SWING ARM TEST component to flexible leg
Row SWING ARM TEST includes：
Counterweight is carried out to the thigh end of flexible leg；
The shank end of flexible leg is suspended on SWING ARM TEST hanger, by the thigh end of flexible leg by lifting and relieving mechanism
It is connected to and draws high arm；
Rope-swinging device is shaken, rope-swinging device drives drawstring make it that drawing high arm lifts, flexible leg, which is followed, to be drawn high arm and lift；
Draw high arm and be raised up to predetermined angular, pull release handle, lift and relieving mechanism release flexible leg；
Flexible leg is around the free bottom of SWING ARM TEST hanger and shock head.
17. flexible leg method of testing as claimed in claim 16, it is characterised in that the predetermined angular is upward 15 ° of level.
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| CN201710192006.7A CN107101836B (en) | 2017-03-28 | 2017-03-28 | Flexible leg testing device and testing method |
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| CN111157212A (en) * | 2020-01-06 | 2020-05-15 | 重庆长安汽车股份有限公司 | Thigh bone angle adjusting device and method of pedestrian protection thigh impactor |
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