CN105092199B - Head-on collision type sled test device - Google Patents

Head-on collision type sled test device Download PDF

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Publication number
CN105092199B
CN105092199B CN201510545865.0A CN201510545865A CN105092199B CN 105092199 B CN105092199 B CN 105092199B CN 201510545865 A CN201510545865 A CN 201510545865A CN 105092199 B CN105092199 B CN 105092199B
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China
Prior art keywords
trolley
head
collision
locking
stent
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CN105092199A (en
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曹立波
吴俊�
李靖
张冠军
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Changsha Zhongli Automobile Design Development Co Ltd
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Changsha Zhongli Automobile Design Development Co Ltd
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Abstract

The invention discloses a kind of head-on collision type sled test devices, it is main to include head-on collision trolley, portal frame, elastic string, pulley, sliding rail, draft gear, the head-on collision trolley is set to sliding rail both ends, the pulley is set on bottom plate, the head-on collision trolley is provided with trolley train, tripping gear, energy-absorbing tube fixing device, locking system, the head-on collision trolley is accelerated and is collided in the middle part of sliding rail respectively, the head-on collision trolley is slided by trolley train along slide direction, along the pitching movement of vertical slide rail direction, the head-on collision trolley is detached by tripping gear before colliding with elastic string.The present invention is rational in infrastructure, meet the needs of the sled impact test of head-on collision type, and different experimental rigs can be installed on trolley stent according to the difference of test objective, pitching movement in simulating trolley collision process while realizing and clashing, device is limited small by place simultaneously, and manufacture is at low cost.

Description

Head-on collision type sled test device
Technical field
The invention belongs to vehicle crash test field, more particularly, to a kind of head-on collision type sled test device.
Background technology
With the fast development of automobile industry, automotive safety is increasingly paid close attention to by consumer, improves the collision safety of automobile Property can not only improve the overall performance of automobile, but also be that effective reduce traffic accident occupant's casualty rate one is important and arrange It applies.Research work of the flourishing country of some automobiles such as America and Europe in terms of car crass is begun to early 20th century.Early in 1999 Ministry of Machine-Building Industry of China has just promulgated the certification regulation of head-on crash passenger protection vehicle form(CMVDR294), nowadays international vapour The relevant laws and regulations in vehicle security legislation and China all have stringent regulation to car crass detection.In order to reach country or even international mark Accurate strict demand, must just research and develop advanced in performance auto parts and components, and largely tested, these experiments will use The high collision test device of simulation precision.
Although current automobile impact test apparatus there are many types, auto parts and components are tested, are mainly used There are two kinds of acceleration trolley and deceleration trolley.Wherein, deceleration trolley is traditional forms of collision, i.e., with the platform of certain speed Vehicle is collided with solid obstacle wall.Although this test form is simple, the huge impact force that trolley is hit with endergonic structure External force is needed to balance, this just will usually claim to foundation structure.Meanwhile impact velocity is higher, it is desirable that runway it is longer, Easily limited by test site.In addition, current bogie wheels are substantially all using fixed axis gear trains, make trolley can only It is moved along slide direction, such trolley just loses pitching movement in collision process, is produced with real automobile forms of collision Difference.If can be clashed with two collision trolleys, the length of sliding rail can not only be shortened, save place, and be further without setting Solid obstacle wall is put, ground is not required substantially, so as to cost-effective.At the same time, if a kind of trolley train can be designed, both Trolley can be constrained to move along slide direction, and trolley can be made to generate pitching movement, it will make experimental rig more science, experiment knot Fruit is more accurate.
Invention content
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, and a kind of head-on collision type sled test device is provided, To realize the needs of the sled impact test of head-on collision type, and difference can be installed on trolley stent according to the difference of test objective Experimental rig, the pitching movement in simulating trolley collision process while realizing and clashing, while device is limited by place Small, manufacture is at low cost.
To achieve the above object, the present invention uses following technical scheme:
A kind of head-on collision type sled test device, it is main to include head-on collision trolley, portal frame 7, elastic string, pulley, sliding rail, traction Device, the head-on collision trolley are set to the both ends of sliding rail, and the pulley is set on bottom plate, and the head-on collision trolley is provided with trolley Train, tripping gear, energy-absorbing tube fixing device, locking system, the head-on collision trolley are accelerated and are sent out in the middle part of sliding rail respectively Raw collision, the head-on collision trolley slided by trolley train along slide direction, along the pitching movement of vertical slide rail direction, the head-on collision Trolley is detached by tripping gear before colliding with elastic string.
The head-on collision trolley includes seat, seat support and trolley stent, seat and is bolted on seat support, Seat support is bolted on trolley stent.
Further, it is provided on the trolley stent and installs seat experimental rig, safety belt test device, air bag examination additional Experiment device and child safety seat experimental rig.
The trolley train includes being located at sliding rail two vertical idler wheels of both sides, the side cunning contacted with sliding rail side up and down Wheel, sliding block, runner block, adjustable spring and fixed plate, the vertical idler wheel are separately mounted on two axis on sliding block, side Pulley is mounted on the axis of runner block, and sliding block slides in sliding slot, and the sliding block upper and lower ends pass through adjustable spring and fixed plate Connection, fixed plate are bolted together with runner block, and runner block is welded on head-on collision trolley.
Further, the trolley train controls the jerk value of trolley wheel system until locking by upper and lower two adjusting nuts.
The tripping gear includes fixed baffle ring, slides baffle ring, adjustable spring, tripping gear column and guide wheel, fixed gear Boxing is connected on the tail portion of elastic string loop break, and passes through adjustable spring and connect with sliding baffle ring, slides baffle ring and is slided along elastic string Dynamic, tripping gear column is bolted on bottom plate.
Further, it is provided with guide wheel on the tripping gear column.
The energy-absorbing tube fixing device includes screw, cone, tapered sleeve, slide plate, bearing 505, bearing (ball) cover 506, and tapered sleeve leads to The front end for being bolted to trolley stent is crossed, the external cylindrical surface of tapered sleeve is evenly arranged with 6 holes, and tapered sleeve is close to trolley stent one end Hole in the axial movement that bearing and bearing (ball) cover are used to constrain screw is installed, screw is inserted in inside tapered sleeve, on the inside of cone plus Work has the trapezoidal thread being meshed with screw, and slide plate is inserted in the hole on tapered sleeve, and is contacted with the groove surface of the cone conical surface.
The locking system includes locking system stent, locking system fixed plate, lock post, locking button, torsional spring, switch Axis, wherein locking button are connect by pin with locking system stent, and two contacts of torsional spring contradict locking button and connection lock respectively Clamping and the pin of locking system stent, locking system stent with locking system fixed plate by being welded to connect, fix by locking system Plate is bolted on sliding rail.
The technical solution adopted in the present invention has the advantages that:
1st, the collision mode that the present invention uses is carried out at the same time acceleration for head-on collision, two head-on collision trolleys, is sent out with identical speed Raw collision, is consistent with the forms of collision of automobile in reality, and simulating degree is high, and trolley seat unit is present by bolt installation On chair stent, can different experimental rigs be installed on trolley stent according to different experiments.
2nd, the train in the present invention is connect using two vertical pulleys and a side pulley with sliding rail, and pass through sliding block and Adjustable spring is connect with head-on collision trolley, that is, be ensure that the stability of glide direction in head-on collision trolley accelerator, in turn ensured and touch Head-on collision trolley can generate pitching movement during hitting, and make collision process simulating degree higher.And according to the needs of experiment, it can pass through The adjusting nut in trolley wheel system is adjusted to control the pitching amount of head-on collision trolley even locking.
3rd, the present invention is provided with tripping gear, moment before the collision, and head-on collision trolley hook is detached from elastic string, is avoided When colliding, elastic string residual elasticity power generates to interference collision process, makes collision process more accurate.
4th, the energy-absorbing tube fixing device structure design that the present invention uses is simple, by axial convert rotational motion for radially Linear motion, the installation and removal of energy-absorbing cylinder are convenient, and the device will not be influenced by the collision-deformed of energy-absorbing cylinder, and work can It leans on, the device is detachable in itself in addition, easy to repair and reuse.
5th, the collision mode that the present invention uses is head-on collision, and impact force belongs to internal force without external force to balance, so touching It hits experimental rig and is not required to setting solid obstacle wall, it is small by site influence, and manufacture at low cost.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention;
Fig. 2 is the head-on collision trolley structure schematic diagram of the present invention;
Fig. 3 is the trolley wheel train structure schematic diagram of the present invention;
Fig. 4 is the tripping gear structure diagram of the present invention;
Fig. 5 is the energy-absorbing tube fixing device external structure schematic diagram of the present invention;
Fig. 6 is the energy-absorbing tube fixing device internal structure schematic diagram of the present invention;
Fig. 7 is the locking system structure diagram of the present invention.
Specific embodiment
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
In the present embodiment, the trolley 1 that clashes is on the left of device, head-on collision trolley 2 is device right side, while provides left and right head-on collision platform Vehicle is respective front end close to the part at sliding rail midpoint, is respective rear end close to the part of hoist engine.Due to present apparatus or so The setting of both sides and embodiment are just the same, below carry out emphasis specifically with the implementation of device left part device It is bright.
Referring to Fig. 1, a kind of head-on collision type sled test device, including sliding rail 10, the head-on collision trolley 1 being arranged on sliding rail, 2, Draft gear 11, trolley train 3, tripping gear 4, energy-absorbing tube fixing device 5, locking system 6, two head-on collision trolleys 1,2 are opposite On sliding rail 10, and pass through elastic string 8 and be connected, elastic string 8 clashes after being wound by the pulley 9 on bottom plate with two Trolley 1,2 is connected, and indirect connection, can be avoided head-on collision trolley 1,2 in this way in collision process to the damage of elastic string 8 It is bad.
Head-on collision trolley 1,2 in the present embodiment, referring to Fig. 2, seat 101 is bolted on seat support 102, Seat support 102 is bolted on trolley stent 103, according to the purpose of experiment, can install seat on trolley stent 103 additional Chair experimental rig, safety belt test device, safety air bag test device and child safety seat experimental rig, energy-absorbing cylinder fix dress 5 are put to be mounted on by bolt on the front apron of trolley stent 103.
Referring to Fig. 3, two vertical pulleys 301 of trolley train 3 are separately mounted on two axis on sliding block 303, side Pulley 302 is mounted on the axis of runner block 304, and the sliding slot of runner block 304 is stuck on sliding block 303, can be glided along sliding block 303 Dynamic, 303 upper and lower ends of sliding block are connect by adjustable spring 305 with fixed plate 306, and fixed plate 306 passes through with runner block 304 It is bolted together, runner block 304 is fixed by welding on trolley stent 103, and head-on collision trolley can hang down with runner block 304 Straight slide direction movement.Two adjusting nuts 307 of 305 upper and lower side of simultaneous retractable spring can control the pitching that trolley wheel is 3 Jerk value is until locking.
Referring to Fig. 4, tripping gear 4 is provided on bottom plate, tripping gear column 404 is bolted on bottom plate, Guide wheel 405 is mounted on the axis of tripping gear column 404, and elastic string 8 is passed through from 405 surface of guide wheel, and guide wheel can prevent elasticity Rope 8 generates friction with tripping gear column 404, and adjustable spring 403 is sleeved in elastic string 8, and one end is welded on fixed baffle ring 401 On, the fixed baffle ring 401 is welded on the tail portion of 8 end of elastic string hook, and slide damper 402 is welded on adjustable spring 403 The other end, slide damper 402 can be slided along elastic string.
In Fig. 5 and Fig. 6, the energy-absorbing tube fixing device 5 is bolted in 103 front end baffle of trolley stent, silk 501 end of bar is machined with Hexagon hole, and by allen wrench rotary screw rod 501, the rotation of screw 501 is driven on screw 501 Cone 502 moved in 501 axial direction of screw, the slide plate 504 that the movement progress of cone 502 is contacted with groove surface is along tapered sleeve Radial direction slip is done in the hole of 503 external cylindrical surfaces, and 502 outside of cone is provided with 6 sliding blocks, 6 sliding blocks while edge Radial direction moves, and then energy-absorbing cylinder is tensioned.
For locking system 6 in the present embodiment referring to Fig. 7, locking system fixed plate 601 is welded on one with locking column holder 602 It rises, locking button 603 is connect by pin with locking system stent 602, and 604 both ends of torsional spring contradict locking button 603 and locking dress respectively Stent 602 is put, lock post 605 is inserted in the hole on locking system stent 602, and locking system fixed plate 601 is consolidated by 4 bolts It is scheduled on the rear end of sliding rail 10.
In the present embodiment, the locking process of whole device is:After the steel wire rope hook of hoist engine is caught on trolley stent 103 The shackle at end, at the same by 8 hook of elastic string catch on head-on collision 1 front bottom end of trolley shackle, hoist engine pull head-on collision trolley 1, sliding rail 10 pairs of trolley trains 3 constrain, make head-on collision trolley 1 only have along 10 direction of sliding rail movement, head-on collision trolley 1 along sliding rail 10 to Left end moves.When the locking rod for 1 rear end of trolley of clashing is contacted with the locking button 603 on sliding rail rear end locking system 6, with right Trolley 1 is hit to continue to move to, locking rod pushes locking button 603 to be rotated, and torsional spring 604 starts to be oppressed tightening at this time, when When locking button 603 goes to certain position, lock post 605 is inserted into the hole of 603 lower section of locking button at this time, prevents locking button 603 Rotation, while the lug on locking button 603 prevents the locking rod of 1 rear end of head-on collision trolley from travelling forward, head-on collision trolley 1 is locked Firmly, entire crash device is in lockup state.
In the present embodiment, the knock-on process of whole device is:The locking of two sets of locking systems 6 of left and right ends is controlled simultaneously Switch, makes two sets of locking systems 6 be carried out at the same time release, is implemented as;Switch shaft 606 under the action of electromagnetic force straight down Movement drives lock post 605 to move simultaneously, and when lock post leaves the hole of locking button 603, locking button 603 is detached from lock post 605 Constraint, rotated under the twisting force of torsional spring 604, when locking button 603 goes to certain position, the locking of trolley rear end Bar is detached from the constraint that locking buckles lug, and the trolley 1 that clashes at this time adds under the tensile force effect of elastic string along sliding rail 10 to center Ski-running is moved, and the head-on collision trolley 2 of 10 other end of sliding rail is also detached from the about accelerate (beamacceleration) of locking system 6 and is slided to sliding rail center at this time.When Head-on collision trolley 1 will be reached before sliding rail center collides in a flash, and head-on collision trolley 1 starts to break off relations, and is implemented as;Elastic string On slip baffle ring 402 when being contacted with tripping gear column 404, prevent the movement for sliding baffle ring 402, at this time adjustable spring 403 are compressed, and elastic string 8 is due to the elastic force by adjustable spring 403, and reduce speed now movement, finally stops, and the platform that clashes at this time Vehicle 1 continues forward slip by inertia, eventually disengages from shackle and collides with another head-on collision trolley 2.
During colliding, head-on collision trolley 1 will generate pitching movement, and the trolley 1 that clashes at this time drives trolley train 3 In runner block 304 moved upwards along sliding block 303, since sliding block 303 and two vertical pulleys 301 link together, two are perpendicular Straight pulley 301 cannot be moved again by the constraint of sliding rail 10 in vertical direction, so when runner block 304 is when moving upwards, it will Movement is finally stopped by the constraint of sliding block 303 and adjustable spring 305.Trolley train 3 ensure that head-on collision trolley 1 was colliding Cheng Zhongneng generates pitching movement, in turn ensures head-on collision trolley 1 in collision process without departing from sliding rail.If experiment does not need to clash Trolley 1,2 generates pitching movement, then can be by adjusting nut 307 to pitching movement of the trolley train 3 along 10 direction of vertical slide rail Carry out locking.
The basic principle and main feature of the present invention has been shown and described above.It should be understood by those skilled in the art that The present invention is not limited to the above embodiments, and the above embodiments and description only illustrate the principle of the present invention, Without departing from the spirit and scope, various changes and improvements may be made to the invention, these changes and improvements are all fallen Enter in scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.

Claims (8)

1. a kind of head-on collision type sled test device, main to include head-on collision trolley (1,2), portal frame (7), elastic string (8), pulley (9), sliding rail (10), draft gear (11), it is characterised in that:The head-on collision trolley (1,2) is set to the both ends of sliding rail (10), institute It states pulley (9) to be set on bottom plate, the head-on collision trolley (1,2) is provided with trolley train (3), tripping gear (4), energy-absorbing cylinder and consolidates Determine device (5), locking system (6), the head-on collision trolley (1,2) is accelerated and is collided in the middle part of sliding rail (10) respectively, The head-on collision trolley (1,2) is slided, along sliding rail (10) direction along the pitching movement of vertical slide rail direction, institute by trolley train (3) Head-on collision trolley (1,2) is stated to detach with elastic string (8) before colliding by tripping gear (4);Two head-on collision trolleys (1,2) are logical Elastic string (8) is crossed to be connected;The trolley train (3) including be located at sliding rail (10) up and down two vertical idler wheels (301) of both sides, Side pulley (302), sliding block (303), runner block (304), adjustable spring (305), the adjusting nut contacted with sliding rail side (307) and fixed plate (306), the vertical idler wheel (301) are separately mounted on two axis on sliding block (303), and side is slided (302) are taken turns on the axis of runner block (304), sliding block (303) slides in sliding slot, and sliding block (303) upper and lower ends are led to Adjustable spring (305) to be crossed to connect with fixed plate (306), fixed plate (306) is bolted together with runner block (304), Runner block (304) is welded on head-on collision trolley (1,2).
2. head-on collision type sled test device according to claim 1, it is characterised in that:The head-on collision trolley (1,2) includes Seat (101), seat support (102) and trolley stent (103), seat (101) are bolted in seat support (102) On, seat support (102) is bolted on trolley stent (103).
3. head-on collision type sled test device according to claim 2, it is characterised in that:Trolley stent is provided on (103) Safety belt test device, safety air bag test device or/and child safety seat experimental rig.
4. head-on collision type sled test device according to claim 1, it is characterised in that:The trolley train (3) is by upper The jerk value of lower two adjusting nuts (307) control trolley wheel system (3) is until locking.
5. head-on collision type sled test device according to claim 1, it is characterised in that:The tripping gear (4) is including solid Determine baffle ring (401), slide baffle ring (402), adjustable spring (403), tripping gear column (404) and guide wheel (405), fixed baffle ring (401) tail portion of elastic string (8) loop break is welded on, and passes through adjustable spring (403) and is connect with sliding baffle ring (402), it is sliding Dynamic baffle ring (402) is slided along elastic string (8), and tripping gear column (404) is bolted on bottom plate.
6. head-on collision type sled test device according to claim 5, it is characterised in that:The tripping gear column (404) On be provided with guide wheel (405).
7. head-on collision type sled test device according to claim 1, it is characterised in that:The energy-absorbing tube fixing device (5) Including screw (501), cone (502), tapered sleeve (503), slide plate (504), bearing (505), bearing (ball) cover (506), tapered sleeve (503) It is bolted in the front end of trolley stent (103), the external cylindrical surface of tapered sleeve (503) is evenly arranged with 6 holes, tapered sleeve (503) bearing (505) and bearing (ball) cover (506) are installed for constraining screw (501) in the hole of trolley stent one end It is axially moved, screw (501) is inserted in tapered sleeve (503) inside, and the ladder being meshed with screw (501) is machined on the inside of cone (502) Shape screw thread, slide plate (504) are inserted in the hole on tapered sleeve (503), and are contacted with the groove surface of cone (502) conical surface.
8. head-on collision type sled test device according to claim 1, it is characterised in that:The locking system (6) includes lock Locking apparatus stent (602), locking system fixed plate (601), lock post (605), locking button (603), torsional spring (604), switch shaft (606), wherein locking button (603) is connect by pin with locking system stent (602), and two contacts of torsional spring (604) are supported respectively Touch locking button (603) and connect locking button (603) and the pin of locking system stent (602), locking system stent (602) with By being welded to connect, locking system fixed plate (601) is bolted on sliding rail (10) locking system fixed plate (601).
CN201510545865.0A 2015-08-31 2015-08-31 Head-on collision type sled test device Active CN105092199B (en)

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CN105372035A (en) * 2015-12-09 2016-03-02 吉林大学 Traction ejection system for completing crosswind test in automobile wind tunnel
US10401260B2 (en) * 2017-04-20 2019-09-03 Ford Global Technologies, Llc Frontal offset impact test system and method
CN107588919B (en) * 2017-08-09 2019-07-16 腾讯科技(深圳)有限公司 Crash tests system and crash tests method
CN107860585B (en) * 2017-09-15 2019-05-03 长沙立中汽车设计开发股份有限公司 A kind of head-on collision type trolley power device
CN109556883B (en) * 2018-11-27 2020-12-04 广汽本田汽车有限公司 Automobile unmanned experiment simulation collision measuring device
CN110823491A (en) * 2019-11-21 2020-02-21 安徽文质信息科技有限公司 Anti-collision performance detection device for forming machining of aviation aircraft shell

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