CN105043740A - Safety belt multi-performance part testing device and testing method - Google Patents
Safety belt multi-performance part testing device and testing method Download PDFInfo
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- CN105043740A CN105043740A CN201510456367.9A CN201510456367A CN105043740A CN 105043740 A CN105043740 A CN 105043740A CN 201510456367 A CN201510456367 A CN 201510456367A CN 105043740 A CN105043740 A CN 105043740A
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- securing band
- ring
- webbing retractor
- seat belt
- safety belt
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- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 6
- 230000001427 coherent effect Effects 0.000 claims description 5
- 238000004088 simulation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention provides a testing device and a testing method for a safety belt multi-performance part, wherein the testing device comprises a safety belt mounting support, a safety belt D ring, a steering mechanism, a safety belt, an extensometer, a pull wire displacement sensor and a safety belt retractor, wherein the safety belt mounting support is arranged on a mounting base plate, the safety belt D ring, the steering mechanism, the safety belt, the extensometer, the pull wire displacement sensor and the safety belt retractor are arranged on the mounting base plate, a damper, a loading piece, a safety belt D ring mounting block and a safety belt retractor mounting block are arranged on the mounting base plate, one end of the safety belt is wound on the safety belt retractor, the other end of the safety belt sequentially penetrates through the safety belt D ring and is connected with a movable shaft of the damper. The testing method of the device is used for detecting the safety belt multi-performance parts. The invention can simultaneously measure various performances of pretension, force limit, coiler characteristic, braid elongation, D-ring friction and the like of a safety belt, saves the test cost and improves the test accuracy.
Description
Technical field
The invention belongs to proving installation field, especially relates to a kind of securing band many performances parts proving installation and method of testing.
Background technology
Securing band is the safety aid of passenger car indispensability, is the visual plant safeguarding occupant safety in vehicle collisions.Use securing band the most common for three-point safety belt in current passenger car, general coiler is positioned at occupant rear or side-lower position, and D ring is fixed on and is positioned at position, occupant's head side, and D ring can rotate within the specific limits around gib screw.Belt-strap passes through D ring after coiler outlet is derived, and extends to occupant front, stop occupant to travel forward in vehicle collisions by ribbon after D ring.Belt-strap can be involved in coiler inside in the moment pretension function of collision happens by the securing band with pretension limiter function, rises and tightens up securing band, by better fixing for occupant effect on the seat.The occupant's chest caused by belt-strap in collision process is stressed when exceeding limit value, and Webbing retractor can discharge the belt-strap of appropriate length, to discharge occupant's chest pressure, safeguards occupant safety.
Because securing band performance has concentrated multiple performance, and there is sequencing in the partial properties triggered time, if use single performance testing apparatus to carry out parts test to the corresponding performance of securing band, it records the possibility of result and can be subject to the interference of other performance devices on the one hand, cause test error, different performance can not be measured by same set of restraint system on the other hand, and the fabrication error of different securing band will affect the analysis precision of securing band overall performance.
Summary of the invention
In view of this, the invention is intended to propose a kind of securing band many performances parts proving installation and method of testing, real vehicle environment can be simulated, use same securing band to carry out the test of many performances such as securing band pretension function, coiler performance, limiter performance, ribbon extensibility, D ring friction force.
For achieving the above object, the technical scheme of the invention is achieved in that
A kind of securing band many performances parts proving installation, comprise the securing band mounting bracket 1 be arranged on mounting base 9, D ring of seat belt 11, the steering mechanism of adjustment D ring of seat belt 11 both sides securing band angle, securing band 17, there is the Webbing retractor 10 of pretension function, the loaded member of damper 8 and the motion of band fluctuation dampers which 8 vertical direction, the upper and lower of described securing band mounting bracket 1 is respectively equipped with D ring of seat belt mounting blocks 5 and Webbing retractor mounting blocks 4, described D ring of seat belt 11 is corresponding with Webbing retractor 10 installation site, described securing band 17 one ends wound is on Webbing retractor 10, the other end successively through D ring of seat belt 11 with walk around steering mechanism and be 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, the securing band 17 of described D ring of seat belt 11 both sides is respectively equipped with the first ribbon force snesor 12 and the second ribbon force snesor 16,
Also comprise one for measuring the extensometer 13 of securing band extensibility, described extensometer 13 is arranged on the securing band 17 of Webbing retractor 10 one end;
Also comprise one for measuring the stay wire displacement sensor 14 that securing band 17 pulls out and is involved in length from Webbing retractor 10, described stay wire displacement sensor 14 is arranged on Webbing retractor mounting blocks 4, and the bracing wire 15 of described stay wire displacement sensor 14 is fixed on the securing band 17 of Webbing retractor 10 one end.
Further, described steering mechanism comprises pair of bearings 3, turning axle 18 and steering bearing support 2, described steering bearing support 2 is connected with mounting base 9, and described turning axle 18 is arranged between pair of bearings 3, and described installing plate 9 is provided with multiple fixing steering mechanism mounting hole 19.
Further, described damper 8 is threaded connection mode with loaded member and is connected.
Further, described loaded member is universal tensile machine.
Further, be bolted between described D ring of seat belt 11 and D ring of seat belt mounting blocks 5.
Further, be bolted between described Webbing retractor 10 and Webbing retractor mounting blocks 4.
Further, the other end of described securing band 17 is dead bolt end, described dead bolt end and movable axis 6 pin joint being provided with dead bolt end mounting groove and through hole.
Based on the method for testing of securing band many performances parts proving installation, comprise following step:
1) by Webbing retractor mounting screw, Webbing retractor 10 is installed on Webbing retractor mounting blocks 4, by D ring of seat belt mounting screw, D ring of seat belt 11 is installed on D ring of seat belt mounting blocks 5, according to test required D ring of seat belt 11 both sides securing band 17 angle, determine the position of steering mechanism on mounting base 9, install fixing steering mechanism, securing band 17 is fixed to the lower end of damper 8 movable axis 6 through bearing 3;
2) the first ribbon force snesor 12, second ribbon force snesor 16 is respectively installed on the securing band 17 of D ring of seat belt 11 both sides, extensometer 13 is installed on the securing band 17 of Webbing retractor 10 side, stay wire displacement sensor 14 is installed on Webbing retractor mounting blocks 4, the bracing wire 15 of stay wire displacement sensor 14 is connected with securing band 17;
3) pre-tightening apparatus in quick-fried Webbing retractor 10 is put, when Webbing retractor 10 receives pretension ignition signal, in damper 8 Reality simulation situation, occupant is to the drag of ribbon backrush, movable axis 6 pulls out from damper 8, it is inner that unnecessary securing band 17 is involved in Webbing retractor 10, records the coherent signal change of the first ribbon force snesor 12 and stay wire displacement sensor 14 in this process;
4) lock movable axis 6 by the lock pin 7 of pretension damper 8 lower end after securing band 17 completes pretension, make it can not continue to be elongated or to shorten;
5) haulage gear be straight up connected with damper 8 is started, securing band 17 is extracted from Webbing retractor 10 200mm or until tractive force generation straight line rises, gather the change of the first ribbon force snesor 12 in this process, extensometer 13, stay wire displacement sensor 14 and the second webbing sensor 16 coherent signal.
Relative to prior art, a kind of securing band many performances parts proving installation described in the invention has following advantage:
The advantage that the invention has and good effect are: can record the multiple performances such as the pretension of a securing band, limiter, coiler characteristic, ribbon extensibility, D ring friction force simultaneously, save testing cost, improve test accuracy.
Accompanying drawing explanation
The accompanying drawing of the part of formation the invention is used to provide the further understanding to the invention, and the schematic description and description of the invention, for explaining the invention, does not form the improper restriction to the invention.In the accompanying drawings:
Fig. 1 is a kind of securing band many performances parts proving installation structural representation described in the invention embodiment;
Fig. 2 is securing band pretension force-time curve;
Fig. 3 is securing band pretension backrush distance-time curve;
Fig. 4 is the force-time curve of D ring of seat belt both sides;
Fig. 5 is that displacement-time curve extracted out by securing band;
Fig. 6 is securing band development length-time curve;
Fig. 7 is coiler characteristic and limiter family curve.
Description of reference numerals:
1-securing band mounting bracket, 2-steering bearing support, 3-bearing, 4-coiler mounting blocks, 5-D ring of seat belt mounting blocks, 6-movable axis, 7-lock pin, 8-damper, 9-mounting base, 10-Webbing retractor, 11-D ring of seat belt, 12-first ribbon force snesor, 13-extensometer, 14-stay wire displacement sensor, 15-bracing wire, 16-second ribbon force snesor, 17-securing band, 18-turning axle, 19-mounting hole.
Embodiment
It should be noted that, when not conflicting, the embodiment in the invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the invention in detail in conjunction with the embodiments.
As shown in Figure 1, a kind of securing band many performances parts proving installation, comprise the securing band mounting bracket 1 be arranged on mounting base 9, D ring of seat belt 11, the steering mechanism of adjustment D ring of seat belt 11 both sides securing band angle, securing band 17, there is the Webbing retractor 10 of pretension function, the loaded member of damper 8 and the motion of band fluctuation dampers which 8 vertical direction, the upper and lower of described securing band mounting bracket 1 is respectively equipped with D ring of seat belt mounting blocks 5 and Webbing retractor mounting blocks 4, described D ring of seat belt 11 is corresponding with Webbing retractor 10 installation site, described securing band 17 one ends wound is on Webbing retractor 10, the other end successively through D ring of seat belt 11 with walk around steering mechanism and be 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, the securing band 17 of described D ring of seat belt 11 both sides is respectively equipped with the first ribbon force snesor 12 and the second ribbon force snesor 16,
Also comprise one for measuring the extensometer 13 of securing band extensibility, described extensometer 13 is arranged on the securing band 17 of Webbing retractor 10 one end;
Also comprise one for measuring the stay wire displacement sensor 14 that securing band 17 pulls out and is involved in length from Webbing retractor 10, described stay wire displacement sensor 14 is arranged on Webbing retractor mounting blocks 4, and the bracing wire 15 of described stay wire displacement sensor 14 is fixed on the securing band 17 of Webbing retractor 10 one end.
Steering mechanism comprises pair of bearings 3, turning axle 18 and steering bearing support 2, described steering bearing support 2 is connected with mounting base 9, described turning axle 18 is arranged between pair of bearings 3, described installing plate 9 is provided with multiple fixing steering mechanism mounting hole 19, and the angle of bearing 3 and position can adjust by the angle needed for the ribbon of D ring of seat belt 11 both sides.
Damper 8 and loaded member are threaded connection mode and are connected, and loaded member can be universal tensile machine, drawing machine band fluctuation dampers which 8 thus pulled out from Webbing retractor 10 by securing band 17.
All be bolted between D ring of seat belt 11 and D ring of seat belt mounting blocks 5, between Webbing retractor 10 and Webbing retractor mounting blocks 4.
The other end of securing band 17 is dead bolt end, described dead bolt end and movable axis 6 pin joint being provided with dead bolt end mounting groove and through hole.
Extensometer is a kind of instrument of the top-stitching distortion of measuring component and 2, other objects, usually by sensor, amplifier and register three part form.The principle of work of extensometer is: the direct and tested member contact of sensor.Distance l between 2 tested on component is gauge length, and the change △ l (elongating or shortening) of gauge length is line distortion.The deformation of member, sensor along with distortion, and is converted to the information such as machinery, optical, electrical, sound this distortion, and the tiny signal that sensor exports by amplifier amplifies.Signal after amplification directly shows or automatically records by register (or reader).
The test process of this proving installation is:
1, by Webbing retractor mounting screw, Webbing retractor 10 is installed on Webbing retractor mounting blocks 4.By D ring of seat belt mounting screw, D ring of seat belt 11 is installed on D ring of seat belt mounting blocks 5.Securing band 17, through bearing 3, is fixed to the lower end of damper 8 movable axis 6.
2, the first ribbon force snesor 12, second ribbon force snesor 16 is installed to the relevant position of securing band 17, extensometer 13 is installed to the relevant position of securing band 17, be installed to by stay wire displacement sensor 14 on Webbing retractor mounting blocks 4, the bracing wire 15 of stay wire displacement sensor 14 is connected with securing band 17.
3, equally first quick-fried pre-tightening apparatus is put with real vehicle, when the Webbing retractor 10 with pretension function receives pretension ignition signal, in damper 8 Reality simulation situation, occupant is to the drag of ribbon backrush, movable axis 6 pulls out from damper 8, and it is inner that unnecessary ribbon is involved in Webbing retractor 10.Pretension force-time curve as shown in Figure 2 and pretension backrush displacement-time curve is as shown in Figure 3 recorded by the first ribbon force snesor 12 and stay wire displacement sensor 14 in pretension process.
The ratio of securing band pretightning force and displacement is retardation factor
Both: K=f/s
Retardation factor is comparatively close with the mode relation of occupant's wear safety belt in full scale vehicle collision, comparatively close with damper damping capacity feature in this testing experiment.
Ascent stage slope β, horizontal segment time duration and plateau value size as can be drawn from Figure 2, and these parameters can be evaluated this securing band performance level the binding effect of occupant in vehicle collision.
4, movable axis 6 (making it can not continue to be elongated or to shorten) is locked by the lock pin 7 of pretension damper 8 lower end after securing band 17 completes pretension.
5, start the haulage gear straight up (universal tensile machine) be connected with damper 8, securing band 17 is extracted from Webbing retractor 10 200mm or until tractive force generation straight line rising.Gather the first ribbon force snesor 12 in this process, extensometer 13, stay wire displacement sensor 14 and the second webbing sensor 16 coherent signal change procedure, thus draw the force-time curve of D ring of seat belt both sides as shown in Figure 4, the securing band as Fig. 5 extracts displacement-time curve and the securing band development length-time curve as Fig. 6 out.
Coiler characteristic as shown in Figure 7 and limiter family curve can be obtained after the curve separating that first ribbon force snesor 12 is recorded.
In whole process the first ribbon force snesor 12 and and the second ribbon force snesor 16 record belt-strap power, both differences are exactly the friction force of D ring of seat belt 11; Extensometer 13 records the elongation of securing band 17, thus calculates the extensibility of belt-strap, and displacement transducer 14 records the length that securing band 17 pulls out and is involved in from Webbing retractor 10.
In the process pull out securing band 17 from Webbing retractor 10, the first ribbon force snesor 12 and the associated dynamic signal measured by stay wire displacement sensor 14 have just reflected coiler performance and limiter performance.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (8)
1. securing band many performances parts proving installation, it is characterized in that: comprise the securing band mounting bracket (1) be arranged on mounting base (9), D ring of seat belt (11), the steering mechanism of adjustment D ring of seat belt (11) both sides securing band angle, securing band (17), there is the Webbing retractor (10) of pretension function, the loaded member of damper (8) and the motion of band fluctuation dampers which (8) vertical direction, the upper and lower of described securing band mounting bracket (1) is respectively equipped with D ring of seat belt mounting blocks (5) and Webbing retractor mounting blocks (4), described D ring of seat belt (11) is corresponding with Webbing retractor (10) installation site, described securing band (17) one ends wound is on Webbing retractor (10), the other end successively through D ring of seat belt (11) with walk around the movable axis of steering mechanism with damper (8) (6) and be connected, described damper (8) bottom is provided with the lock pin (7) of locking movable axis (6), the securing band (17) of described D ring of seat belt (11) both sides is respectively equipped with the first ribbon force snesor (12) and the second ribbon force snesor (16),
Also comprise one for measuring the extensometer (13) of securing band extensibility, described extensometer (13) is arranged on the securing band (17) of Webbing retractor (10) one end;
Also comprise one for measuring the stay wire displacement sensor (14) that securing band (17) pulls out and is involved in length from Webbing retractor (10), described stay wire displacement sensor (14) is arranged on Webbing retractor mounting blocks (4), and bracing wire (15) end of described stay wire displacement sensor (14) is fixed on the securing band (17) of Webbing retractor (10) one end.
2. a kind of securing band many performances parts proving installation according to claim 1, it is characterized in that: described steering mechanism comprises pair of bearings (3), turning axle (18) and steering bearing support (2), described steering bearing support (2) is connected with mounting base (9), described turning axle (18) is arranged between pair of bearings (3), and described installing plate (9) is provided with multiple fixing steering mechanism mounting hole (19).
3. a kind of securing band many performances parts proving installation according to claim 1, is characterized in that: described damper (8) is threaded connection mode with loaded member and is connected.
4. a kind of securing band many performances parts proving installation according to claim 1, is characterized in that: described loaded member is universal tensile machine.
5. a kind of securing band many performances parts proving installation according to claim 1, is characterized in that: be bolted between described D ring of seat belt (11) and D ring of seat belt mounting blocks (5).
6. a kind of securing band many performances parts proving installation according to claim 1, is characterized in that: be bolted between described Webbing retractor (10) and Webbing retractor mounting blocks (4).
7. a kind of securing band many performances parts proving installation according to claim 1, it is characterized in that: the other end of described securing band (17) is dead bolt end, described dead bolt end and movable axis (6) pin joint being provided with dead bolt end mounting groove and through hole.
8. the method for testing of a kind of securing band many performances parts proving installation according to claim 1, comprises following step:
1) by Webbing retractor mounting screw, Webbing retractor (10) is installed on Webbing retractor mounting blocks (4), by D ring of seat belt mounting screw, D ring of seat belt (11) is installed on D ring of seat belt mounting blocks (5), according to test required D ring of seat belt (11) both sides securing band (17) angle, determine the position of steering mechanism on mounting base (9), install fixing steering mechanism, securing band (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 on the securing band (17) of D ring of seat belt (11) both sides, extensometer (13) is installed on the securing band (17) of Webbing retractor (10) side, stay wire displacement sensor (14) is installed on Webbing retractor mounting blocks (4), the bracing wire (15) of stay wire displacement sensor (14) is connected with securing band (17);
3) pre-tightening apparatus in quick-fried Webbing retractor (10) is put, when Webbing retractor (10) receives pretension ignition signal, in damper (8) Reality simulation situation, occupant is to the drag of ribbon backrush, movable axis (6) pulls out from damper (8), it is inner that unnecessary securing band (17) is involved in Webbing retractor (10), records the coherent signal change of the first ribbon force snesor (12) and stay wire displacement sensor (14) in this process;
4) lock movable axis (6) by the lock pin (7) of pretension damper (8) lower end after securing band (17) completes pretension, make it can not continue to be elongated or to shorten;
5) haulage gear be straight up connected with damper (8) is started, securing band (17) is extracted from Webbing retractor (10) 200mm or until tractive force generation straight line rises, gather the first ribbon force snesor (12), extensometer (13), stay wire displacement sensor (14) and the second webbing sensor (16) coherent signal change in this process.
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| CN201510456367.9A CN105043740B (en) | 2015-07-29 | 2015-07-29 | Safety belt multi-performance part testing device and testing method |
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| CN201510456367.9A CN105043740B (en) | 2015-07-29 | 2015-07-29 | Safety belt multi-performance part testing device and testing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106813920A (en) * | 2017-04-12 | 2017-06-09 | 南京工程学院 | A kind of safety belt detection means |
| CN111122145A (en) * | 2020-01-21 | 2020-05-08 | 重庆长安汽车股份有限公司 | Automobile safety belt dynamic performance test method |
| 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 |
| CN112729788A (en) * | 2020-12-21 | 2021-04-30 | 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 |
| CN117490998A (en) * | 2023-11-06 | 2024-02-02 | 山东滨州鲁鹏化纤制品有限公司 | Safety belt performance testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813920A (en) * | 2017-04-12 | 2017-06-09 | 南京工程学院 | A kind of safety belt detection means |
| CN111122145A (en) * | 2020-01-21 | 2020-05-08 | 重庆长安汽车股份有限公司 | Automobile safety belt dynamic performance test method |
| CN112729788A (en) * | 2020-12-21 | 2021-04-30 | 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 |
| 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 |
| CN117490998A (en) * | 2023-11-06 | 2024-02-02 | 山东滨州鲁鹏化纤制品有限公司 | Safety belt performance testing device |
| CN117490998B (en) * | 2023-11-06 | 2024-05-28 | 山东滨州鲁鹏化纤制品有限公司 | Safety belt performance testing device |
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| CN105043740B (en) | 2017-08-25 |
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