CN100460249C - Self-adapting device for absorbing impact energy - Google Patents
Self-adapting device for absorbing impact energy Download PDFInfo
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- CN100460249C CN100460249C CNB2007100349332A CN200710034933A CN100460249C CN 100460249 C CN100460249 C CN 100460249C CN B2007100349332 A CNB2007100349332 A CN B2007100349332A CN 200710034933 A CN200710034933 A CN 200710034933A CN 100460249 C CN100460249 C CN 100460249C
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- impact
- thread
- threaded sleeve
- impact bar
- cover
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Abstract
An adaptive impact energy absorber for the collision between two cars is composed of a bumper module, a motor fixed to said bumper module, a screw sleeve tube with a screwed segment at one end and a through hole segment at another end, and an impact rod in said screw sleeve tube and with a screwed impact sleeve and an extended-out end connected to the output axle of said motor.
Description
Technical field
The present invention relates to the Vehicle Engineering field, relate in particular to a kind of self-adapting device for absorbing impact energy that can adapt to friction speed state, different impact directions.
Background technology
Energy Absorbing Device is widely used in the safe design technology of automobile, traditional Energy Absorbing Device adopts conquassation formula energy-absorbing mechanism, utilize stamping forming metal square beam or metal circular tube to make the collision longeron, absorb collision energy by the flow of metal and the flexing of colliding longeron and headstock place.This structure is not very high to the requirement of layout pattern, but the collision energy-absorbing ability can only be pre-designed, can not adjust; To cause the large area deformation of vehicle body after the collision, the service expenditure height.
Existing a kind of screw thread shearing type auto against energy absorption device, it has utilized the fail in shear power of every circle screw thread be the feature of constant substantially, when colliding, can the huge kinetic energy of instantaneous absorption, can provide no resilience and pulsation-free resistance to slow down again.Existing screw thread shearing type auto against energy absorption device, directly utilize outside thread on the thread rod to remove to impact negative thread on the threaded sleeve, since the engagement of thread rod and threaded sleeve is 2 circles or 2 enclose more than, so initially thrusting screw thread power is to thrust more than 2 times or 2 times of 1 circle screw thread power, and be again the impact of face face contact, therefore need just can thrust screw thread much larger than the starting force that thrusts 1 circle screw thread power in the collision starting stage, this makes that the initial collision acceleration/accel is huge, in automobile high-speed when collision,, driving person holds and can't stand huge moderating process and cause life danger.This installs the head-on crash for 100%, the huge energy that it is also had and produces when certain ability absorbs collision, but show that according to statistics 100% head-on crash bumps the part that only occupies the minority in the accident before all automobiles, major part all is the collision that certain angle of inclination is arranged.Thread rod in the screw thread shearing type auto against energy absorption device is than the metal strength height of threaded line pipe, if angular impact, the collision vehicle at first touches the thread rod end, the anterior generation of thread rod is crooked, and along threaded sleeve radial shear threaded sleeve, cause threaded sleeve to damage, can not guarantee that thread rod impacts screw thread along the axis of threaded sleeve, absorb the effect of huge energy when not having collision, whole energy absorption device was lost efficacy.
In sum, also have breakneck hidden danger at present in automotive safety design, structure that must the impact energy absorption plant is improved.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of and can steadily slow down when auto against, self-adapting device for absorbing impact energy that equally can the smooth absorption energy when the collision that certain angle of inclination is arranged.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is: a kind of self-adapting device for absorbing impact energy, comprise threaded sleeve, impact bar, motor and bumper/spoiler assembly, impact bar one end is set in the threaded sleeve, the other end stretches out outside the threaded sleeve, and link to each other with the mouth of motor, the motor fuselage is fixed on the bumper/spoiler assembly, an end is established internal thread segment in the described threaded sleeve, the other end is established the through hole section, be set with impact cover on the impact bar by being threaded, impact cover and be positioned at the through hole section, impact the internal diameter of the external diameter of cover greater than internal thread segment, outside diameter of thread on the impact bar is less than the internal diameter of internal thread segment, the through hole section of threaded sleeve is provided with two or more pin-and-holes, and the impact of impact bar puts and is provided with respectively and each pin-and-hole corresponding positioning hole, is provided with the set pin that extends in the corresponding positioning hole in each pin-and-hole.
Described threaded sleeve is provided with the preceding supporting of supporting impact bar near an end of bumper/spoiler assembly, and the other end is provided with the back supporting of supporting impact bar, and the end that impact bar is positioned at the back supporting is provided with positive stop lug boss.
Supporting and back supporting sleeve are located in the threaded sleeve before described, are connected with the threaded sleeve interference.
Supporting and back supporting are fixedly arranged on the threaded sleeve two ends before described.
Described impact is arranged with two circles or the above negative thread of two circles.
The screw thread that described threaded sleeve, impact bar and impact put is Acme thread or triangle thread or square thread or saw thread or round thread.
Compared with prior art, advantage of the present invention just is: overlap by the impact that has been threaded on impact bar, avoid directly utilizing outside thread on the impact bar to remove to impact negative thread on the threaded sleeve, guarantee that the power that only need thrust 1 circle screw thread in the collision starting stage can start this device, initial acceleration reduced when this made collision, during the automobile high-speed collision, moderating process is steady, thereby has protected driving person's life security; The negative thread that impacts cover impact threaded sleeve belongs to oblique sword impact shear metal, and its mechanical characteristic is better than the flat sword impact shear of face face contact; Impacting cover is threaded with impact bar, according to the different speed of a motor vehicle, the rotation of driven by motor impact bar, make the corresponding change of thread rod length outside the vehicle body, when the speed of a motor vehicle slow or when stopping the adjustable impact bar shorten, adjustable impact bar elongation when the speed of a motor vehicle is very fast is to increase impact stroke, improve energy absorption ability, thereby realize the automatic adaptation of energy absorption ability; When not bumping, impacting cover locatees by set pin, set pin extends in the corresponding positioning hole in pin-and-hole, undertaken axially and radial location by two or more such set pin impact covers, be convenient to the adjustment of impact pole length, when bumping, set pin is impacted the cover shearing earlier and is broken away from, its shearing force size and the shearing force equal and opposite in direction of shearing 1 circle screw thread make deceleration endergonic process held stationary; The preceding supporting and the back supporting of impact bar are housed on the threaded sleeve, when oblique collision takes place when, impact force is delivered to the impact bar end, make impact bar that certain bending take place, but because preceding supporting and back supporting is spacing, guaranteed that the impact bar bending between two supportings is very little, avoid impact bar radial shear threaded sleeve, make the impact bar can be smoothly along its axial-movement, realize axially shearing the negative thread in the threaded sleeve, guaranteed that self-adapting device for absorbing impact energy can normally move, stable its safety guard-safeguard effect of performance; Impact is arranged with two circles or the above negative thread of two circles, bears the thread turns of shearing force and the negative thread that intensity all is higher than threaded sleeve, so can guarantee to impact the negative thread that cover can be cut off threaded sleeve; The set-up mode of preceding supporting and back supporting, and the selection of screw thread kind is flexible and changeable, is convenient to design and produce.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of the full reduced state of impact bar;
Fig. 3 is the structural representation that impact bar is stretched state entirely;
Fig. 4 is the structural representation of collision shearing condition;
Fig. 5 is the structural representation of bumper/spoiler assembly;
Fig. 6 is the structure principle chart of preceding supporting and back supporting.
Marginal data:
1, threaded sleeve 2, impact bar
3, motor 4, bumper/spoiler assembly
5, preceding supporting 6, back supporting
11, internal thread segment 12, through hole section
13, pin-and-hole 21, impact cover
22, positive stop lug boss 23, knock hole
24, set pin 41, flange
42, sleeve 43, bearing
44, bumper/spoiler
The specific embodiment
As shown in Figure 1, self-adapting device for absorbing impact energy of the present invention comprises threaded sleeve 1, impact bar 2, motor 3 and bumper/spoiler assembly 4, and impact bar 2 one ends are set in the threaded sleeve 1, and the other end stretches out outside the threaded sleeve 1, and links to each other with the mouth of motor 3.As shown in Figure 5, bumper/spoiler assembly 4 comprises flange 41, sleeve 42, bearing 43 and bumper/spoiler 44, flange 41 and sleeve 42 link together by screw, flange 41 is connected with bumper/spoiler 44 by bolt, motor 3 fuselages are fixed on the bumper/spoiler 44, impact bar 2 is supported on the sleeve 42 by bearing 43, and impact bar 2 ends link to each other with motor 3 mouths.Under the different speed of a motor vehicle, motor 3 drives impact bar 2 and rotates in a circumferential direction, impact bar 2 is produced to be moved axially, realize Telescopic, outreach is long, and absorbable collision energy is many, outreach is few, absorbable collision energy is few, as shown in Figure 2, when the speed of a motor vehicle slow or when stopping adjustable impact bar 2 shorten or withdrawal fully; As shown in Figure 3,2 elongations of adjustable impact bar to increase impact stroke, improve energy absorption ability when the speed of a motor vehicle is very fast, thereby realize the automatic adaptation of energy absorption ability.Bearing 43 is undertaken spacing by shaft block ring and flange 41, guarantee to connect single-piece stability, is provided with felt collar and seals, and guarantees lubricating system cleaning, the free from dust of bearing 43.An end is established internal thread segment 11 in the threaded sleeve 1, the other end is established through hole section 12, be set with impact cover 21 on the impact bar 2 by being threaded, impact cover 21 and be positioned at through hole section 12, impact the internal diameter of the external diameter of cover 21 greater than internal thread segment 11, outside diameter of thread on the impact bar 2 is less than the internal diameter of internal thread segment 11, as shown in Figure 4, impacting cover 21 can avoid directly utilizing outside thread on the impact bar 2 to remove to impact negative thread on the threaded sleeve 1, guarantee that the power that only need thrust 1 circle screw thread in the collision starting stage can start this device, initial acceleration reduced when this made collision, during the automobile high-speed collision, moderating process is steady, thereby has protected driving person's life security; The mode of impacting cover 21 impact threaded sleeves 1 negative thread belongs to oblique sword impact shear, and its mechanical characteristic is better than the flat sword impact shear of face face contact.The through hole section 12 of threaded sleeve 1 is provided with 4 well-distributed pin-and-holes 13, the impact of impact bar 2 cover 21 is provided with respectively and each pin-and-hole 13 corresponding positioning hole 23, be provided with the set pin 24 that extends in the corresponding positioning hole 23 in each pin-and-hole 13, when not bumping, impacting cover 21 is undertaken axially and radial location by two or more set pins 24, be convenient to the adjustment of impact bar 2 length, when bumping, set pin 24 is impacted cover 21 shearings earlier and is broken away from, its shearing force size and the shearing force equal and opposite in direction of shearing 1 circle screw thread, make deceleration endergonic process held stationary, the shearing force size of set pin 24 can be by the quantity of increase and decrease set pin 24, changing set pin 24 intensity own adjusts.One end of threaded sleeve 1 close bumper/spoiler assembly 4 is provided with the preceding supporting 5 of supporting impact bar 2, and the other end is provided with the back supporting 6 of supporting impact bar 2, and the end that impact bar 2 is positioned at back supporting 6 is provided with positive stop lug boss 22, and impact bar 2 is spacing with back supporting 6 by preceding supporting 5.As shown in Figure 6; when oblique collision takes place when; angular impact power F is delivered to impact bar 2 ends; make impact bar 2 be positioned at threaded sleeve 1 outer part certain bending takes place; but it is spacing by preceding supporting 5 and back supporting 6 with certain-length; the amount of bow that has guaranteed impact bar 2 between two supportings is very little; avoid impact bar 2 radial shear threaded sleeves 1; make the impact bar 2 can be smoothly along its axial-movement; realize axially shearing the negative thread in the threaded sleeve 1, guaranteed that self-adapting device for absorbing impact energy can normally move, stable its safety guard-safeguard effect of performance.Preceding supporting 5 and back supporting 6 are sheathed in the threaded sleeve 1, are connected with threaded sleeve 1 interference.Impact cover 21 and be provided with 5 circle negative threads, bear the thread turns of shearing force and the negative thread that intensity all is higher than threaded sleeve 1, so can guarantee to impact the negative thread that cover 21 can be cut off threaded sleeve 1.Threaded sleeve 1, impact bar 2 and the screw thread that impacts on the cover 21 are Acme thread.Preceding supporting 5 and back supporting 6 also can be by being bolted to threaded sleeve 1 two ends, and screw thread can also be selected triangle thread, square thread, saw thread or round thread, are convenient to design and produce.
Claims (7)
1. self-adapting device for absorbing impact energy, comprise threaded sleeve (1), impact bar (2), motor (3) and bumper/spoiler assembly (4), impact bar (2) one ends are set in the threaded sleeve (1), the other end stretches out outside the threaded sleeve (1), and link to each other with the mouth of motor (3), motor (3) fuselage is fixed on the bumper/spoiler assembly (4), it is characterized in that an end is established internal thread segment (11) in the described threaded sleeve (1), the other end is established through hole section (12), be set with impact cover (21) on the impact bar (2) by being threaded, impact cover (21) and be positioned at through hole section (12), impact the internal diameter of the external diameter of cover (21) greater than internal thread segment (11), outside diameter of thread on the impact bar (2) is less than the internal diameter of internal thread segment (11), the through hole section (12) of described threaded sleeve (1) is provided with two or more pin-and-holes (13), the impact cover (21) of impact bar (2) is provided with respectively and each pin-and-hole (13) corresponding positioning hole (23), is provided with the set pin (24) that extends in the corresponding positioning hole (23) in each pin-and-hole (13).
2. according to the described self-adapting device for absorbing impact energy of claim 1, it is characterized in that described threaded sleeve (1) is provided with the preceding supporting (5) of supporting impact bar (2) near an end of bumper/spoiler assembly (4), the other end is provided with the back supporting (6) of supporting impact bar (2), and the end that impact bar (2) is positioned at back supporting (6) is provided with positive stop lug boss (22).
3. according to the described self-adapting device for absorbing impact energy of claim 2, it is characterized in that described preceding supporting (5) and back supporting (6) are sheathed in the threaded sleeve (1), are connected with threaded sleeve (1) interference.
4. according to the described self-adapting device for absorbing impact energy of claim 2, it is characterized in that described preceding supporting (5) and back supporting (6) are fixedly arranged on threaded sleeve (1) two ends.
5. according to each described self-adapting device for absorbing impact energy in the claim 1 to 4, it is characterized in that described impact cover (21) is provided with two circles or the above negative thread of two circles.
6. according to each described self-adapting device for absorbing impact energy in the claim 1 to 4, it is characterized in that described threaded sleeve (1), impact bar (2) and the screw thread that impacts on the cover (21) are Acme thread or triangle thread or square thread or saw thread or round thread.
7. according to the described self-adapting device for absorbing impact energy of claim 5, it is characterized in that described threaded sleeve (1), impact bar (2) and the screw thread that impacts on the cover (21) are Acme thread or triangle thread or square thread or saw thread or round thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100349332A CN100460249C (en) | 2007-05-17 | 2007-05-17 | Self-adapting device for absorbing impact energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100349332A CN100460249C (en) | 2007-05-17 | 2007-05-17 | Self-adapting device for absorbing impact energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101049811A CN101049811A (en) | 2007-10-10 |
| CN100460249C true CN100460249C (en) | 2009-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100349332A Expired - Fee Related CN100460249C (en) | 2007-05-17 | 2007-05-17 | Self-adapting device for absorbing impact energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100460249C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826062B (en) * | 2012-08-20 | 2016-04-13 | 林楠 | A kind of energy absorption device |
| CN105034998B (en) * | 2015-09-15 | 2017-04-19 | 宁夏大学 | Bump energy-absorbing device and automobile with same |
| CN107676115A (en) * | 2017-11-15 | 2018-02-09 | 辽宁工程技术大学 | A kind of screw thread shearing type energy-absorbing erosion control hydraulic vertical prop |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2528928A1 (en) * | 1982-06-21 | 1983-12-23 | Picand Roland | Collapsible shock absorber for continuous tube cutter - has continuous cutting action and deflector to divert separated tube end |
| EP0463371A2 (en) * | 1990-06-25 | 1992-01-02 | Austria Metall Aktiengesellschaft | Shock absorbing body, especially for motor cars |
| CN1541869A (en) * | 2003-04-28 | 2004-11-03 | 管红钧 | Vehicle collision protector |
| WO2004096611A1 (en) * | 2003-04-28 | 2004-11-11 | Hongjun Guan | An impact protector |
| CN2678969Y (en) * | 2004-02-26 | 2005-02-16 | 雷正保 | Collision power absorber of automobile |
| JP2005119461A (en) * | 2003-10-16 | 2005-05-12 | Honda Motor Co Ltd | Vehicular bumper device |
| CN1222432C (en) * | 2003-06-20 | 2005-10-12 | 雷正保 | Screw-thread shearing car collision energy-absorbing device |
| US6957727B2 (en) * | 2002-12-18 | 2005-10-25 | Kam Hang Leung | Impact absorber for vehicle |
-
2007
- 2007-05-17 CN CNB2007100349332A patent/CN100460249C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2528928A1 (en) * | 1982-06-21 | 1983-12-23 | Picand Roland | Collapsible shock absorber for continuous tube cutter - has continuous cutting action and deflector to divert separated tube end |
| EP0463371A2 (en) * | 1990-06-25 | 1992-01-02 | Austria Metall Aktiengesellschaft | Shock absorbing body, especially for motor cars |
| US6957727B2 (en) * | 2002-12-18 | 2005-10-25 | Kam Hang Leung | Impact absorber for vehicle |
| CN1541869A (en) * | 2003-04-28 | 2004-11-03 | 管红钧 | Vehicle collision protector |
| WO2004096611A1 (en) * | 2003-04-28 | 2004-11-11 | Hongjun Guan | An impact protector |
| CN1222432C (en) * | 2003-06-20 | 2005-10-12 | 雷正保 | Screw-thread shearing car collision energy-absorbing device |
| JP2005119461A (en) * | 2003-10-16 | 2005-05-12 | Honda Motor Co Ltd | Vehicular bumper device |
| CN2678969Y (en) * | 2004-02-26 | 2005-02-16 | 雷正保 | Collision power absorber of automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101049811A (en) | 2007-10-10 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHANGSHA BOSLON MACHINERY MANUFACTURING CO., LTD. Assignor: Changsha University of Sciences and Technology Contract fulfillment period: 2008.12.31 to 2018.12.31 contract change Contract record no.: 2009430000010 Denomination of invention: Self-adapting device for absorbing impact energy Granted publication date: 20090211 License type: Exclusive license Record date: 2009.3.16 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.31 TO 2018.12.31; CHANGE OF CONTRACT Name of requester: CHANGSHA BOLONG MECHANICAL MANUFACTURING CO., LTD. Effective date: 20090316 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 |