CN105043740B - A kind of many performance parts test devices of safety belt and method of testing - Google Patents
A kind of many performance parts test devices of safety belt and method of testing Download PDFInfo
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- CN105043740B CN105043740B CN201510456367.9A CN201510456367A CN105043740B CN 105043740 B CN105043740 B CN 105043740B CN 201510456367 A CN201510456367 A CN 201510456367A CN 105043740 B CN105043740 B CN 105043740B
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- safety belt
- ring
- webbing retractor
- belt
- damper
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Abstract
The invention provides a kind of many performance parts test devices of safety belt and method of testing, test device includes the safety belt mounting bracket being arranged on mounting base, D ring of seat belt, steering mechanism, safety belt, extensometer, stay wire displacement sensor, Webbing retractor, damper, loaded member, D ring of seat belt mounting blocks and Webbing retractor mounting blocks, safety belt one ends wound is on Webbing retractor, the other end sequentially passes through D ring of seat belt and bypasses the movable axis connection of steering mechanism and damper, damper bottom is provided with the lock pin of locking movable axis, the first ribbon force snesor and the second ribbon force snesor are respectively equipped with the safety belt of D ring of seat belt both sides.The method of testing of the present apparatus is used for the detection for carrying out many performance parts of safety belt.The invention can measure the multiple performances such as pretension, limiter, coiler characteristic, ribbon elongation percentage, the D ring frictional force of a safety belt simultaneously, saved testing cost, improved test accuracy.
Description
Technical field
The invention belongs to test device field, more particularly, to a kind of many performance parts test devices of safety belt and
Method of testing.
Background technology
Safety belt is the indispensable safety aid of passenger car, is occupant safety is safeguarded in vehicle collisions important
Equipment.The use of most commonly seen safety belt is three-point safety belt in current passenger car, general coiler be located at occupant rear or
Side-lower position, D rings are fixed on positioned at occupant's head side position, and D rings can within the specific limits be rotated around fixing screws.
Belt-strap, by D rings, extends to occupant front, in vehicle collision after coiler outlet export by ribbon after D rings
Occupant is prevented to travel forward in journey.Safety belt with pretension limiter function will can pacify in the moment pretension function that vehicle collides
Full band ribbon is involved in inside coiler, is risen and is tightened up safety belt, by occupant's more preferably fixed effect on the seat.In collision process
When occupant's chest stress exceedes limit value caused by belt-strap, Webbing retractor can discharge the peace of appropriate length
Full band ribbon, to discharge occupant's chest pressure, safeguards occupant safety.
Because safety belt performance has concentrated multiple performance, and there is sequencing in the partial properties triggered time, if used
Single performance test equipment to safety belt correspondence performance carry out parts test, on the one hand its measure result may be by other
Performance devices are disturbed, and cause test error, another aspect different performance can not be measured by same set of restraint system, different safety
The fabrication error of band will influence the analysis precision of safety belt overall performance.
The content of the invention
In view of this, the invention is directed to a kind of many performance parts test devices of safety belt and method of testing,
Real vehicle environment can be simulated, safety belt pretension function, coiler performance, limiter performance, ribbon are carried out using same safety belt
The test of many performances such as elongation percentage, D ring frictional force.
To reach above-mentioned purpose, what the technical scheme of the invention was realized in：
A kind of many performance parts test devices of safety belt, including the safety belt mounting bracket being arranged on mounting base 9
1st, D ring of seat belt 11, adjust the steering mechanism of the both sides safety belt angle of D ring of seat belt 11, safety belt 17, with pretension function
Webbing retractor 10, damper 8 and the loaded member moved with the vertical direction of fluctuation dampers 8, described safety belt mounting bracket 1
Upper and lower part be respectively equipped with D ring of seat belt mounting blocks 5 and Webbing retractor mounting blocks 4, the described He of D ring of seat belt 11
The installation site of Webbing retractor 10 is corresponding, and the described one ends wound of safety belt 17 is on Webbing retractor 10, the other end
Sequentially pass through D ring of seat belt 11 and bypass steering mechanism and be connected with the movable axis 6 of damper 8, the described bottom of damper 8 is provided with
The first ribbon power sensing is respectively equipped with the lock pin 7 of locking movable axis 6, the safety belt 17 of described both sides of D ring of seat belt 11
The ribbon force snesor 16 of device 12 and second；
Also include an extensometer 13 for being used to measure safety belt elongation percentage, described extensometer 13 is positioned close to safety belt
On the safety belt 17 of the one end of coiler 10；
Also including one is used to measure the bracing wire displacement biography that safety belt 17 pulled out and be involved in length from Webbing retractor 10
Sensor 14, described stay wire displacement sensor 14 is arranged on Webbing retractor mounting blocks 4, described stay wire displacement sensor
14 bracing wire 15 is fixed on the safety belt 17 of the one end of Webbing retractor 10.
Further, the steering mechanism includes a pair of bearings 3, rotary shaft 18 and steering bearing support 2, described steering
The support of bearing 2 is connected with mounting base 9, and described rotary shaft 18 is arranged between a pair of bearings 3, on described mounting base 9
Provided with multiple fixed steering mechanism mounting holes 19.
Further, the damper 8 is connected through a screw thread mode with loaded member and is connected.
Further, the loaded member is universal tensile machine.
Further, it is bolted between the D ring of seat belt 11 and D ring of seat belt mounting blocks 5.
Further, it is bolted between the Webbing retractor 10 and Webbing retractor mounting blocks 4.
Further, the other end of described safety belt 17 is dead bolt end, and the dead bolt end is with being provided with dead bolt end mounting groove
With the pin joint of movable axis 6 of through hole.
Based on the method for testing of many performance parts test devices of safety belt, including following steps：
1) Webbing retractor 10 is installed to by Webbing retractor mounting blocks 4 by Webbing retractor mounting screw
On, D ring of seat belt 11 is installed on D ring of seat belt mounting blocks 5 by D ring of seat belt mounting screw, pacified according to needed for test
The angle of 11 both sides safety belt of full band D rings 17, determines position of the steering mechanism on mounting base 9, installs fixed steering mechanism, peace
Full band 17 is fixed to the lower end of the movable axis 6 of damper 8 through bearing 3；
2) the first ribbon force snesor 12, the second ribbon force snesor 16 are respectively installed to the both sides of D ring of seat belt 11
On safety belt 17, extensometer 13 is installed on the safety belt 17 of the side of Webbing retractor 10, by bracing wire displacement sensing
Device 14 is installed on Webbing retractor mounting blocks 4, and the bracing wire 15 of stay wire displacement sensor 14 is connected with safety belt 17；
3) pre-tightening apparatus in quick-fried Webbing retractor 10 is put, when Webbing retractor 10 receives pretension ignition signal
When, damper 8 simulation truth under occupant to the drag of ribbon backrush, movable axis 6 is pulled out from damper 8, unnecessary
Safety belt 17 is involved in inside Webbing retractor 10, records the first ribbon force snesor 12 and bracing wire displacement sensing during this
The coherent signal change of device 14；
4) safety belt 17 completes after pretension to lock movable axis 6 by the lock pin 7 of the lower end of pretension damper 8, prevent its from
Continue to be elongated or shorten；
5) start the haulage gear straight up being connected with damper 8, safety belt 17 is dragged from Webbing retractor 10
Go out 200mm or up to tractive force is ramped, gather the first ribbon force snesor 12, extensometer 13, drawing during this
The coherent signal of 14 and second webbing sensor of linear movement pick-up 16 changes.
Relative to prior art, many performance parts test devices of a kind of safety belt described in the invention have following
Advantage：
The invention has the advantages and positive effects of：Pretension, limiter, the volume of a safety belt can be measured simultaneously
The multiple performances such as device characteristic, ribbon elongation percentage, D ring frictional force are received, testing cost has been saved, has improved test accuracy.
Brief description of the drawings
The accompanying drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The schematic description and description made is used to explain the invention, does not constitute the improper restriction to the invention.
In accompanying drawing：
Fig. 1 is many performance parts test device structural representations of a kind of safety belt described in the invention embodiment；
Fig. 2 is safety belt pretension force-time curve；
Fig. 3 is safety belt pretension backrush distance-time curve；
Fig. 4 is the force-time curve of D ring of seat belt both sides；
Fig. 5 is that safety belt extracts displacement-time curve out；
Fig. 6 is safety belt development length-time graph；
Fig. 7 is coiler characteristic and limiter characteristic curve.
Description of reference numerals：
1- safety belt mounting brackets, 2- steering bearing supports, 3- bearings, 4- coiler mounting blocks, 5- D ring of seat belt is installed
Block, 6- movable axis, 7- lock pins, 8- dampers, 9- mounting bases, 10- Webbing retractors, 11- D ring of seat belt, 12- first
Ribbon force snesor, 13- extensometers, 14- stay wire displacement sensors, 15- bracing wires, 16- the second ribbon force snesors, 17- safety
Band, 18- rotary shafts, 19- mounting holes.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can
To be mutually combined.
Describe the invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of many performance parts test devices of safety belt, including the safety being arranged on mounting base 9
With mounting bracket 1, D ring of seat belt 11, adjust the steering mechanism of the both sides safety belt angle of D ring of seat belt 11, safety belt 17, have
The Webbing retractor 10 of pretension function, damper 8 and the loaded member moved with the vertical direction of fluctuation dampers 8, described safety
Upper and lower part with mounting bracket 1 is respectively equipped with D ring of seat belt mounting blocks 5 and Webbing retractor mounting blocks 4, described peace
Full band D rings 11 are corresponding with the installation site of Webbing retractor 10, and the described one ends wound of safety belt 17 is in Webbing retractor
On 10, the other end sequentially passes through D ring of seat belt 11 and bypasses steering mechanism and is connected with the movable axis 6 of damper 8, described damping
The bottom of device 8 is provided with the lock pin 7 of locking movable axis 6, the safety belt 17 of described both sides of D ring of seat belt 11 and is respectively equipped with first
The ribbon force snesor 16 of ribbon force snesor 12 and second；
Also include an extensometer 13 for being used to measure safety belt elongation percentage, described extensometer 13 is positioned close to safety belt
On the safety belt 17 of the one end of coiler 10；
Also including one is used to measure the bracing wire displacement biography that safety belt 17 pulled out and be involved in length from Webbing retractor 10
Sensor 14, described stay wire displacement sensor 14 is arranged on Webbing retractor mounting blocks 4, described stay wire displacement sensor
14 bracing wire 15 is fixed on the safety belt 17 of the one end of Webbing retractor 10.
Steering mechanism includes a pair of bearings 3, rotary shaft 18 and steering bearing support 2, described steering bearing support 2 and peace
Dress bottom plate 9 is connected, and described rotary shaft 18 is arranged between a pair of bearings 3, and described mounting base 9 turns provided with multiple fixations
To mechanism mounting hole 19, the angles and positions of bearing 3 can be adjusted according to the angle needed for the both sides ribbon of D ring of seat belt 11
It is whole.
Damper 8 is connected through a screw thread mode with loaded member and is connected, and loaded member can be universal tensile machine, and stretching-machine drives
Damper 8 is so that safety belt 17 be pulled out from Webbing retractor 10.
Between D ring of seat belt 11 and D ring of seat belt mounting blocks 5, Webbing retractor 10 and Webbing retractor mounting blocks 4
Between be bolted.
The other end of safety belt 17 is dead bolt end, the dead bolt end and the movable axis 6 provided with dead bolt end mounting groove and through hole
Pin joint.
Extensometer is a kind of instrument for the top-stitching deformation for measuring 2 points of component and other objects, generally by sensor, amplification
Device and the part of logger three composition.The operation principle of extensometer is：Sensor is directly contacted with tested component.It is tested on component
The distance between 2 points l are gauge length, and the change △ l (elongating or shortening) of gauge length deform for line.The deformation of member, sensor is with change
Shape, and this deformation is converted to the information such as machinery, light, electricity, sound, the tiny signal that amplifier exports sensor amplifies.Note
Signal after amplification is directly displayed or automatically recorded by record device (or reader).
The test process of this test device is：
1st, Webbing retractor 10 is installed to by Webbing retractor mounting blocks 4 by Webbing retractor mounting screw
On.D ring of seat belt 11 is installed on D ring of seat belt mounting blocks 5 by D ring of seat belt mounting screw.Safety belt 17 passes through axle
3 are held, the lower end fixed to the movable axis 6 of damper 8.
The 2nd, first ribbon force snesor 12, the second ribbon force snesor 16 are installed to the relevant position of safety belt 17, will
Extensometer 13 is installed to the relevant position of safety belt 17, and stay wire displacement sensor 14 is installed into Webbing retractor mounting blocks 4
On, the bracing wire 15 of stay wire displacement sensor 14 is connected with safety belt 17.
3rd, quick-fried pre-tightening apparatus is equally first put with real vehicle, when the Webbing retractor 10 with pretension function receives pretension point
During fiery signal, occupant is to the drag of ribbon backrush under the simulation truth of damper 8, and movable axis 6 is pulled out from damper 8,
Unnecessary ribbon is involved in inside Webbing retractor 10.Pass through the first ribbon force snesor 12 and bracing wire displacement in pretension process
Sensor 14 measures pretension force-time curve as shown in Figure 2 and pretension backrush displacement-time curve as shown in Figure 3.
Safety belt pretightning force and the ratio of displacement are retardation coefficient
Both：K=f/s
Mode relation of the retardation coefficient with occupant's wear safety belt in full scale vehicle collision is more close, in the testing experiment
It is more close with damper damping capacity feature.
Rise slope over 10 β, horizontal segment time duration and plateau value size, and its these parameters as can be drawn from Figure 2
The binding effect of occupant can be evaluated the safety belt performance level in vehicle collision.
4th, safety belt 17 complete after pretension by the lock pin 7 of the lower end of pretension damper 8 lock movable axis 6 (prevent its from
Continue to be elongated or shorten).
5th, the haulage gear straight up (universal tensile machine) that is connected with damper 8 is started, by safety belt 17 from safety belt
200mm is extracted in coiler 10 or until tractive force is ramped.Gather the first ribbon force snesor 12 during this,
Extensometer 13, the coherent signal change procedure of 14 and second webbing sensor of stay wire displacement sensor 16, so as to draw as shown in Figure 4
The force-time curves of D ring of seat belt both sides, such as Fig. 5 safety belt extracts displacement-time curve out and the safety belt such as Fig. 6 prolongs
Elongation-time graph.
Coiler characteristic and limit as shown in Figure 7 is can obtain after the curve separating that first ribbon force snesor 12 is measured
Force characteristic curve.
The first ribbon force snesor 12 and belt-strap power is measured with the second ribbon force snesor 16 in whole process,
Both differences are exactly the frictional force of D ring of seat belt 11；Extensometer 13 measures the elongation of safety belt 17, so as to calculate safety
Elongation percentage with ribbon, displacement transducer 14 measures the length that safety belt 17 is pulled out and is involved in from Webbing retractor 10.
During safety belt 17 is pulled out from Webbing retractor 10, the first ribbon force snesor 12 and bracing wire displacement
Associated dynamic signal measured by sensor 14 has just reflected coiler performance and limiter performance.
The preferred embodiment of the invention is the foregoing is only, creation is not intended to limit the invention, it is all at this
Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc. should be included in the invention
Protection domain within.
Claims (8)
1. a kind of many performance parts test devices of safety belt, it is characterised in that：Including the safety being arranged on mounting base (9)
With mounting bracket (1), D ring of seat belt (11), the steering mechanism for adjusting D ring of seat belt (11) both sides safety belt angle, safety belt
(17) Webbing retractor (10), with pretension function, damper (8) and adding with the motion of fluctuation dampers (8) vertical direction
Holder, the upper and lower part of described safety belt mounting bracket (1) is respectively equipped with D ring of seat belt mounting blocks (5) and safety belt volume
Receive device mounting blocks (4), described D ring of seat belt (11) safety corresponding, described with Webbing retractor (10) installation site
Band (17) one ends wound is on Webbing retractor (10), and the other end sequentially passes through D ring of seat belt (11) and bypasses steering mechanism
It is connected with the movable axis (6) of damper (8), described damper (8) bottom is provided with the lock pin (7) of locking movable axis (6), institute
The first ribbon force snesor (12) is respectively equipped with the safety belt (17) of D ring of seat belt (11) both sides stated and the second ribbon power is passed
Sensor (16)；
Also include an extensometer (13) for being used to measure safety belt elongation percentage, described extensometer (13) is positioned close to safety belt
On the safety belt (17) of coiler (10) one end；
Also including one is used to measure the bracing wire displacement biography that safety belt (17) pulled out and be involved in length from Webbing retractor (10)
Sensor (14), described stay wire displacement sensor (14) is arranged on Webbing retractor mounting blocks (4), described bracing wire displacement
Bracing wire (15) end of sensor (14) is fixed on the safety belt (17) of Webbing retractor (10) one end.
2. many performance parts test devices of a kind of safety belt according to claim 1, it is characterised in that：The steering machine
Structure includes a pair of bearings (3), rotary shaft (18) and steering bearing support (2), described steering bearing support (2) and mounting base
(9) connect, described rotary shaft (18) is arranged between a pair of bearings (3), described mounting base (9) is provided with multiple fixations
Steering mechanism is with mounting hole (19).
3. many performance parts test devices of a kind of safety belt according to claim 1, it is characterised in that：The damper
(8) mode is connected through a screw thread with loaded member to be connected.
4. many performance parts test devices of a kind of safety belt according to claim 1, it is characterised in that：The loaded member
It is universal tensile machine.
5. many performance parts test devices of a kind of safety belt according to claim 1, it is characterised in that：The safety belt
It is bolted between D rings (11) and D ring of seat belt mounting blocks (5).
6. many performance parts test devices of a kind of safety belt according to claim 1, it is characterised in that：The safety belt
It is bolted between coiler (10) and Webbing retractor mounting blocks (4).
7. many performance parts test devices of a kind of safety belt according to claim 1, it is characterised in that：Described safety
The other end of band (17) is dead bolt end, the dead bolt end and movable axis (6) pin joint provided with dead bolt end mounting groove and through hole.
8. a kind of method of testing of many performance parts test devices of safety belt according to claim 1, including it is following several
Individual step：
1) Webbing retractor (10) is installed to by Webbing retractor mounting blocks (4) by Webbing retractor mounting screw
On, D ring of seat belt (11) is installed on D ring of seat belt mounting blocks (5) by D ring of seat belt mounting screw, according to test institute
D ring of seat belt (11) both sides safety belt (17) angle is needed, position of the steering mechanism on mounting base (9) is determined, installs and fixes
Steering mechanism, safety belt (17) is fixed to the lower end of damper (8) movable axis (6) through bearing (3)；
2) the first ribbon force snesor (12), the second ribbon force snesor (16) are respectively installed to D ring of seat belt (11) both sides
Safety belt (17) on, extensometer (13) is installed on the safety belt (17) close to Webbing retractor (10) side, will be drawn
Linear movement pick-up (14) is installed on Webbing retractor mounting blocks (4), by the bracing wire (15) of stay wire displacement sensor (14)
It is connected with safety belt (17)；
3) pre-tightening apparatus in quick-fried Webbing retractor (10) is put, when Webbing retractor (10) receives pretension ignition signal
When, occupant is to the drag of ribbon backrush under damper (8) simulation truth, and movable axis (6) is pulled out from damper (8),
It is internal that unnecessary safety belt (17) is involved in Webbing retractor (10), record during this first ribbon force snesor (12) and
The coherent signal change of stay wire displacement sensor (14)；
4) safety belt (17) completes lock pin (7) the locking movable axis (6) by pretension damper (8) lower end after pretension, makes it
It can not continue to be elongated or shorten；
5) haulage gear straight up being connected with damper (8) is started, by safety belt (17) from Webbing retractor (10)
Extract 200mm or up to tractive force is ramped, gather the first ribbon force snesor (12), extensometer during this
(13), stay wire displacement sensor (14) and the change of the second webbing sensor (16) coherent signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456367.9A CN105043740B (en) | 2015-07-29 | 2015-07-29 | A kind of many performance parts test devices of safety belt and method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456367.9A CN105043740B (en) | 2015-07-29 | 2015-07-29 | A kind of many performance parts test devices of safety belt and method of testing |
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| Publication Number | Publication Date |
|---|---|
| CN105043740A CN105043740A (en) | 2015-11-11 |
| CN105043740B true CN105043740B (en) | 2017-08-25 |
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ID=54450459
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|---|---|---|---|
| CN201510456367.9A Active CN105043740B (en) | 2015-07-29 | 2015-07-29 | A kind of many performance parts test devices of safety belt and method of testing |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813920B (en) * | 2017-04-12 | 2023-06-23 | 南京工程学院 | Safety belt detection device |
| CN111122145B (en) * | 2020-01-21 | 2020-12-29 | 重庆长安汽车股份有限公司 | Automobile safety belt dynamic performance test method |
| CN112729788B (en) * | 2020-12-21 | 2022-04-08 | 奇瑞汽车股份有限公司 | Device and method for testing pulling-out and recovery performance of automobile safety belt assembly |
| CN112683554A (en) * | 2021-01-28 | 2021-04-20 | 重庆长安汽车股份有限公司 | Device and method for testing dynamic performance of self-locking spring bolt of safety belt |
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| CN105043740A (en) | 2015-11-11 |
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