CN101608970A - The reproducing apparatus of automobile impact curve - Google Patents
The reproducing apparatus of automobile impact curve Download PDFInfo
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- CN101608970A CN101608970A CN 200810039099 CN200810039099A CN101608970A CN 101608970 A CN101608970 A CN 101608970A CN 200810039099 CN200810039099 CN 200810039099 CN 200810039099 A CN200810039099 A CN 200810039099A CN 101608970 A CN101608970 A CN 101608970A
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- lance
- collision
- reproducing apparatus
- absorbing tube
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Abstract
The invention discloses a kind of reproducing apparatus of automobile impact curve.The object of the present invention is to provide a kind of weak point that overcomes existing impaction simulating trolley, a kind of reproducing apparatus of automobile impact curve is provided.Described device comprises waveform generator, barrier walls, collision chassis.When simulated crash took place, the front portion and the lance of collision chassis bumped against, and lance is subjected to clashing into the back and moves backward along guide thimble; Driving the energy energy absorbing tube that the other end connected when lance moves backward is synchronized with the movement; Be squeezed when moving the backward obstruction of die orifice of energy absorbing tube, at this moment push the energy absorbing tube that die orifice will therefrom pass through and be squeezed into flat, in extrusion process, absorb the impact energy that collision produces, difform energy absorbing tube can produce different extruding forces, thereby simulates different automobile impact curves.The present invention is used for check, the research and development of simulated automotive collision and automotive safety parts.
Description
Technical field
The present invention relates to vehicle is carried out the automotive testing equipment of security study, test and check usefulness, particularly a kind of reproducing apparatus of automobile impact curve.
Technical background
For the security performance that increases vehicle and the most reliably the various facilities in the designing car intensity, stability and to safety component test, research and development etc., before putting into production, the security performance of reply vehicle is done dynamically test, the comprehensive strength and the impact property at each test position when colliding to estimate the place ahead, this test are that the simulation experiment method of the speed when reproducing retarded velocity waveform when colliding with time curve and collision is finished.In order to make the test findings that obtains more accurate, use real vehicle in the test sometimes, but test finish after this real vehicle scrapped substantially, make experimentation cost quite expensive; Particularly some safety component as seat, securing band etc., must guarantee to keep repeatability in test and product detection, just must adopt the simulation chassis could keep required repeatability in the product detection; Though traditional chassis also can be simulated some performance graphs, apparatus expensive requires height to experimental enviroment, and particularly the curve of being simulated is single.To this, the inventor has submitted to " trolley for simulating car collision " patent application (publication number CN1381368A), this patent application can satisfy general automotive safety parts substantially in April 23 calendar year 2001 research and development and product detect.But after in a few years using, find, this invention also exists the some shortcomings part, mainly show: 1. when simulation long wave deltoid, required guide rod will use lengthening just can reach required time requirement, but guide rod itself is oversize, requirement to the machining precision of guide rod and intensity is also higher, and particularly guide rod lengthening back has also increased the accuracy requirement of track, so be difficult to simulate long wave shape; 2. guide rod too heavily can increase the collision undesired signal, and guide rod is too heavy itself also can to produce collision waveform with the wall of knocking down when contacting, can increase the collision undesired signal, and the curve that chassis is simulated is interfered.
Summary of the invention
The object of the present invention is to provide a kind of weak point that overcomes existing impaction simulating trolley, a kind of reproducing apparatus of automobile impact curve is provided.
For this reason, the invention provides a kind of reproducing apparatus of automobile impact curve, described device comprises waveform generator, barrier walls, the collision chassis, described waveform generator is made up of fixed mount and energy absorber, described fixed mount is installed in the barrier walls front, described energy absorber comprises energy absorbing tube and extruding die orifice, the front end of described energy absorbing tube is fixed together with an end of lance after passing the extruding die orifice, one end of described lance links to each other with the energy energy absorbing tube, and the sleeve pipe of the other end on being arranged in fixed mount passes and collide the anterior relative of chassis, and its height is equal with the front central of collision chassis.When simulated crash took place, the front portion and the lance of collision chassis bumped against, and lance is subjected to clashing into the back and moves backward along guide thimble; The drive energy energy absorbing tube that the other end connected was synchronized with the movement when lance moved backward; Be squeezed when moving the backward obstruction of die orifice of energy absorbing tube, at this moment push the energy absorbing tube that die orifice will therefrom pass through and be squeezed into flat, in extrusion process, absorb the impact energy that collision produces, difform energy absorbing tube can produce different extruding forces, thereby simulates different automobile impact curves.
In the reproducing apparatus of another kind of automobile impact curve provided by the invention, described energy absorbing tube is made up of the targeting part and the energy absorbing portion of flattening, and its flattening part can be passed the extruding die orifice and be linked to each other with lance; Its energy absorbing portion can have multiple shape, and the straight tube shape can be arranged, can elliptical shape, can between straight tube, be pressed into flat pattern, and shape can be out of shape as required, also can adopt real plug material.The width of described extruding die orifice is greater than the twice of the wall thickness of energy absorbing tube, and the resistance that is produced when greater than twice is linear change, and length is greater than half of the outer circumference of energy absorbing tube, when length can prevent that greater than a half energy absorbing tube is stuck; The extruding die orifice is fixed on the fixed mount.The intensity of described extrusion die gate material will be higher than energy absorbing tube, selects for use high-abrasive material to make, and adopt high-abrasive material repeatedly to use, and the result has repeatability.
In the reproducing apparatus of another kind of automobile impact curve provided by the invention, the anterior mounting plane steel plate of described collision chassis, the middle part of plane steel plate is equal with the height of lance, the plane steel plate of the front portion of collision chassis and lance bump against when bumping, since highly equal, can guarantee can not produce in the collision process fluctuation up and down and disturb.Described waveform generator can have an energy absorber, also a plurality of energy absorber can be arranged, and when using a plurality of energy absorber, the size and the length of each energy absorber can be the same or different, and it is fixed to come as required.Described waveform generator is installed in the front of barrier walls, can connect into integral body with barrier walls, also can use by being fixed on collision chassis front separately.Adopt independent fixed form, use the function that does not influence barrier walls after withdrawing from.
In the reproducing apparatus of another kind of automobile impact curve provided by the invention, the rupture strength of described lance by the required power of extruding die orifice, only in this way just can prevent that the lance insufficient strength is by bending in collision process greater than energy absorbing tube.The length of described lance is greater than the length of energy absorbing tube, guarantees that the lance and the front portion of chassis are bumped against and energy absorbing tube can not bump against the interference waveform that prevent the secondary collision generation with chassis.On the end face of described lance, padded coaming is installed, can be prevented the interference of impact moment, can protect sensor can not suffer damage simultaneously curve by padded coaming is installed.
In the reproducing apparatus of another kind of automobile impact curve provided by the invention, described waveform generator can be with advancing to be installed on the collision chassis, the Waveshape reproduction device of barrier walls front can use simultaneously with other energy absorption device on the collision chassis, resulting result is the impact simulation waveform that the waveform generator acting in conjunction by the waveform generator of chassis and barrier walls front forms, by the waveform of chassis and the stack of Waveshape reproduction device can be simulated complicated more curve, expanded purposes greatly.
The reproducing apparatus of automobile impact curve provided by the invention compared with prior art has the following advantages:
1. because guide rod is not installed on the chassis, do not influence the weight of chassis in collision process, the waveform of simulation is desirable more;
2. because guide rod is installed in outside the chassis, the length of the lance that can extend can be simulated long wave shape by long lance;
3. because energy absorbing tube is installed in outside the chassis, therefore, can not damage when mounted sensor.
Embodiments of the invention below by accompanying drawing is described can more be expressly understood design of the present invention, method.
Description of drawings
Fig. 1 is the waveform generator synoptic diagram of the reproducing apparatus of a kind of automobile impact curve of the present invention;
Fig. 2 is the overall schematic of the reproducing apparatus of a kind of automobile impact curve of the present invention.
Embodiment
Fig. 1 is the waveform generator synoptic diagram of the reproducing apparatus of a kind of automobile impact curve of the present invention: waveform generator is fixed on the support 5, and waveform generator is made up of lance 1, lance guide pin bushing 6, web member 4, energy absorbing tube 2, extruding die orifice 3.Lance guide pin bushing 6 is fixed on the support 5, and lance 1 passes from lance guide pin bushing 6, can freely seesaw; The front end of lance 1 has been installed buffer stopper 7, and buffer stopper 7 prevents to cause the damage to sensor in collision process, the interference that can keep waveform not collided simultaneously.The front end of the flattening of energy absorbing tube 2 passes extruding die orifice 3 backs and is fixed together by the rear end of web member 4 with lance 1.When bumping, collision chassis and buffer stopper 7 bump, the lance 1 that buffer stopper 7 links to each other moves to the barrier walls direction, driving energy absorbing tube 2 by web member 4 in motion process moves simultaneously, because the thickness of the rear end of energy absorbing tube 2 is greater than the thickness in the slit of extruding die orifice 3, when lance 1 is forced pulling energy absorbing tube 2, energy absorbing tube 2 becomes flat from round tube, 5 pairs of die orifices of extruding produce resistances to energy absorbing tube 2, this resistance is actual to be exactly to colliding the resistance of chassis, by changing the thickness of energy absorbing tube 2, the size of diameter, material, hardness, shape, just can produce different resistances, thereby the collision chassis is produced different acting forces, different acting forces produces different impact curves, simulate different squiggles, reach the purpose of simulated crash.
With reference to accompanying drawing 2, Fig. 2 is the overall schematic of the reproducing apparatus of a kind of automobile impact curve of the present invention: support 22 is fixed on the front of barrier walls 21, and two waveform generators 23,24 symmetry respectively are installed on the support 22; All bonding buffer stopper on the lance of waveform generator, as: buffer stopper 26 is installed on the lance 25 of waveform generator 23.When carrying out the trolley impact test, the front panel 28 of collision chassis 27 bumps against with the lance of waveform generator 23,24, according to the requirement of impact curve, designs different energy absorbing tubes, thereby produces needed collision waveform curve.
Above described embodiment be that the present invention will be described, be not that the present invention is limited.Design, method and scope that the present invention is claimed all are documented in claims of the present invention.
Claims (10)
1. the reproducing apparatus of automobile impact curve, it comprises waveform generator, barrier walls, collision collision chassis, it is characterized in that: described waveform generator is made up of fixed mount and energy absorber, and described fixed mount is installed in the barrier walls front; Described energy absorber comprises energy absorbing tube and extruding die orifice; The front end of described energy absorbing tube is fixed together with an end of lance after passing the extruding die orifice; One end of described lance links to each other with the energy energy absorbing tube, and the sleeve pipe of the other end on being arranged in fixed mount passes and collide the anterior relative of chassis, and its height is equal with the front central of collision chassis.
2. the reproducing apparatus of automobile impact curve according to claim 1 is characterized in that: energy absorbing tube is made up of the targeting part and the energy absorbing portion of flattening, and it flattens part and can pass and push die orifice and link to each other with lance; Energy absorbing portion can have multiple shape, and the straight tube shape can be arranged, can elliptical shape, can between straight tube, be pressed into flat pattern, and shape can be out of shape as required, also can adopt real plug material.
3. the reproducing apparatus of automobile impact curve according to claim 2 is characterized in that: the width of described extruding die orifice is greater than the twice of the wall thickness of energy absorbing tube, and length is greater than half of the outer circumference of energy absorbing tube, and the extruding die orifice is fixed on the fixed mount.
4. according to the reproducing apparatus of claim 1 or 2 or 3 described automobile impact curves, it is characterized in that: the intensity of described extrusion die gate material will be higher than energy absorbing tube, selects for use high-abrasive material to make.
5. the reproducing apparatus of automobile impact curve according to claim 1, it is characterized in that: the anterior mounting plane steel plate of described collision chassis, the middle part of plane steel plate is equal with the height of lance, and the plane steel plate of the front portion of collision chassis and lance bump against when bumping.
6. the reproducing apparatus of automobile impact curve according to claim 1, it is characterized in that: described waveform generator is installed in the front of barrier walls, can connect into integral body with barrier walls, also can use by being fixed on collision chassis front separately.
7. the reproducing apparatus of automobile impact curve according to claim 1 is characterized in that: the rupture strength of described lance greater than energy absorbing tube by the required power of extruding die orifice.
8. the reproducing apparatus of automobile impact curve according to claim 1 is characterized in that: the length of described lance is greater than the length of energy absorbing tube, guarantees that the lance and the front portion of collision chassis are bumped against and energy absorbing tube can not bump against with the collision chassis.
9. the reproducing apparatus of automobile impact curve according to claim 1 is characterized in that: described lance and collision chassis are installed padded coaming above bumping against the end face of an end.
10. the reproducing apparatus of automobile impact curve according to claim 1, it is characterized in that: described Waveshape reproduction device can be with advancing to be installed on the collision chassis, the Waveshape reproduction device of barrier walls front can use simultaneously with other energy absorption device on the collision collision chassis, and resulting result is the impact simulation waveform that the Waveshape reproduction device acting in conjunction by the Waveshape reproduction device of collision chassis and barrier walls front forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810039099 CN101608970A (en) | 2008-06-18 | 2008-06-18 | The reproducing apparatus of automobile impact curve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810039099 CN101608970A (en) | 2008-06-18 | 2008-06-18 | The reproducing apparatus of automobile impact curve |
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| CN101608970A true CN101608970A (en) | 2009-12-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344402A (en) * | 2013-06-27 | 2013-10-09 | 南京航空航天大学 | Gradation loading impact test device and impact method thereof |
| CN106989887A (en) * | 2017-03-30 | 2017-07-28 | 陕西华安中泰检测技术有限公司 | Waveshape generating device for mechanical structure collision performance simulation experiment platform |
| CN108168905A (en) * | 2017-12-26 | 2018-06-15 | 重庆旭乾通机械制造有限公司 | A kind of trolley test specimen protective device |
| CN111673539A (en) * | 2020-06-18 | 2020-09-18 | 东方电气集团东方锅炉股份有限公司 | Automatic detection device and method for guide sleeve |
-
2008
- 2008-06-18 CN CN 200810039099 patent/CN101608970A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344402A (en) * | 2013-06-27 | 2013-10-09 | 南京航空航天大学 | Gradation loading impact test device and impact method thereof |
| CN103344402B (en) * | 2013-06-27 | 2015-09-09 | 南京航空航天大学 | A kind of hierarchical loading impact test apparatus and impact method thereof |
| CN106989887A (en) * | 2017-03-30 | 2017-07-28 | 陕西华安中泰检测技术有限公司 | Waveshape generating device for mechanical structure collision performance simulation experiment platform |
| CN106989887B (en) * | 2017-03-30 | 2023-05-16 | 西安从吾电子科技有限公司 | Waveform generation device for mechanical structure collision performance simulation experiment platform |
| CN108168905A (en) * | 2017-12-26 | 2018-06-15 | 重庆旭乾通机械制造有限公司 | A kind of trolley test specimen protective device |
| CN108168905B (en) * | 2017-12-26 | 2020-08-28 | 重庆旭乾通机械制造有限公司 | Trolley test piece protection device |
| CN111673539A (en) * | 2020-06-18 | 2020-09-18 | 东方电气集团东方锅炉股份有限公司 | Automatic detection device and method for guide sleeve |
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Open date: 20091223 |