CN105571877A - Tested vehicle traction mechanism and tested vehicle collision system - Google Patents
Tested vehicle traction mechanism and tested vehicle collision system Download PDFInfo
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- CN105571877A CN105571877A CN201610045154.1A CN201610045154A CN105571877A CN 105571877 A CN105571877 A CN 105571877A CN 201610045154 A CN201610045154 A CN 201610045154A CN 105571877 A CN105571877 A CN 105571877A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
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Abstract
The invention relates to a tested vehicle traction mechanism and a tested vehicle collision system. The tested vehicle traction mechanism comprises a tested vehicle connecting assembly, a traction assembly and a connecting rod. The tested vehicle connecting assembly is used for fixed connection with a tested vehicle. The traction assembly is used for rotatable connection with a traction vehicle. The tested vehicle connecting assembly is connected with the traction assembly in an articulated connection manner. One end of the connecting rod is used for fixedly connecting with a braking vehicle, and the other end is used for movably connecting with the traction vehicle and the traction assembly. According to the tested vehicle traction mechanism and the tested vehicle collision system, connection between the tested vehicle and the traction vehicle is improved from hard connection to flexible articulated connection. Furthermore in braking by the braking vehicle, the traction assembly frontwards rotates under an inertia effect and inclines, thereby realizing optimal separation between the tested vehicle connecting assembly and the traction assembly, effectively preventing an interference to the tested vehicle after collision by a traction column, and preventing a danger of secondary collision.
Description
Technical field
The invention belongs to technical field of vehicle safety, refer to a kind of vehicle impact testing equipment technical field, refer to a kind of test vehicle haulage gear and collision system especially.
Background technology
Complete automobile collision test is the Key experiments detecting vehicle safety energy, the complete automobile collision test now used is schematic diagram as shown in Figure 1, include test vehicle, trailer wagon and braking dolly, trailer wagon arranges traction column 2, test vehicle arranges traction guide groove 1; Be connected by wire rope 3 between trailer wagon with braking dolly; When testing, clamping between guide groove with traction column will be drawn and be connected.Run to crash direction by trailer wagon motoring ring test vehicle, (this moment sets in program) sometime before the collision, test cart is braked dolly braking, and stop, after test vehicle reaches the speed of test needs, move on because of inertia, until off-test.
The existing trailer wagon of technology and the connection of test vehicle are realized by traction column and traction guide groove, wherein draw guide groove and are fixed on the suspension of vehicle, technical scheme exists following deficiency:
1) inconvenience is installed: because traction guide groove is the channel-section steel of opening, all will, by channel-section steel by being welded to connect on the chassis suspension of test vehicle, operate very inconvenient during each test; Chassis also on-plane surface simultaneously, the perpendicularity of install traction guide groove and stability requirement need to take much time just can reach testing requirements.
2) cost is higher: because channel-section steel is by being welded on chassis, therefore the use of channel-section steel is disposable, thus improves the cost of test.
3) accuracy tested exists must deviation: because channel-section steel and chassis are welded together to form an entirety, test vehicle is completely because external force is drawn, and the possibility of result of the four-wheel aligner of each car there are differences, can cause like this existing in final collision precision must deviation, and causes the inaccurate of result.
For being rigidly connected between trailer wagon and traction column, in process of the test, being rigid connection between traction column and traction guide groove, causing process of the test to there is certain deficiency:
1) there is the risk that comes off of traction guide groove: owing to being Hard link between traction column and traction guide groove, the trailed power of test vehicle is completely by the transmission of traction guide groove, if traction guide groove failure welding, may occur in process of the test that traction guide groove is separated with vehicle body, thus cause test failure.
2) cause velocity error larger: because test vehicle needs to be separated with trailer wagon before collision, warranty test vehicle clashes in the absence of external forces, what be required of that test vehicle is separated with trailer wagon is more late better, the speed of warranty test vehicle can meet the requirement of test like this, but trailer wagon is by wire rope plugging after the braking of braking dolly, wire rope itself has the elasticity of movement, if the disengaging time of setting is shorter, what then have that trailer wagon is separated with test vehicle is thorough, thus affects final test speed.
3) easily secondary collision is caused: in central collision process of the test, after impact test, test vehicle has very large deflection, because traction column remains that original vertical state is constant, the test vehicle of collision rift may be caused in process of the test to touch traction column, thus with collision obstacle generation secondary collision may.
Summary of the invention
The object of this invention is to provide a kind of test vehicle haulage gear and collision system, to solve the technology in the test of existing Vehicular impact and the problems in process of the test, improve accuracy and the precision of test findings.
The present invention is achieved by the following technical solutions:
A kind of test vehicle haulage gear, includes test vehicle coupling assembling, traction component and connecting link;
Described test vehicle coupling assembling is used for being fixedly connected with test vehicle;
Described traction component is used for being rotationally connected with towing vehicle;
Described test vehicle coupling assembling and described traction component mount;
Described connecting link one end is used for being fixedly connected with abrupt deceleration vehicle, and the other end is used for being flexibly connected with described towing vehicle and traction component respectively.
Described test vehicle coupling assembling comprises the first conduction chain, the second conduction chain and contiguous block;
One end of described first conduction chain is used for being fixedly connected with described test vehicle, and the other end is fixedly connected with described contiguous block;
One end of described second conduction chain is used for being fixedly connected with described test vehicle, and the other end is fixedly connected with described contiguous block;
Described contiguous block and described traction component mount.
Described traction component comprises traction hook, traction column, base and connecting pin;
Described traction column one end is fixedly connected with described traction hook, and the other end is fixedly connected with described base;
Described base is non-equilateral polygon, and described base is provided with center pit; Described connecting pin is through described center pit; Described traction component with described connecting pin for axle and described towing vehicle are rotationally connected.
Described traction hook comprises hanger bulk, and the upwards kink be structure as a whole with described hanger bulk;
The lower surface of described hanger bulk is provided with draw-in groove, the bottom surface of described draw-in groove is provided with mounting hole, the upper end of described traction column snaps in described draw-in groove;
The end face of described kink is provided with the opening of through described kink two sides; Described contiguous block and described opening mount.
Angle between the extended surface of described opening place plane and described hanger bulk place plane is 41 ° ± 0.5 °.
The limit that described base is relative with the bottom surface of described towing vehicle is the first limit, and two limits adjacent with described first limit are Second Edge and the 3rd limit;
The length on described first limit is less than the length of described Second Edge, is also less than the length on described 3rd limit.
The extended line on described first limit, and the angle between described Second Edge and described 3rd limit is 37 ° ± 0.5 °.
A kind of test vehicle collision system, include test vehicle, towing vehicle and abrupt deceleration vehicle, described test vehicle collision system also includes the test vehicle haulage gear of above-mentioned any one.
Described towing vehicle is provided with the bottom surface for matching with described traction component; Described traction component comprises base; The limit that described base is relative with the bottom surface of described towing vehicle is the first limit, and two limits adjacent with described first limit are Second Edge and the 3rd limit; The first pin hole is provided with in the scope corresponding with described Second Edge of the bottom surface of described towing vehicle; The second pin hole is provided with in the described 3rd corresponding scope in limit in the bottom surface of described towing vehicle.
One end that described connecting link is connected with described towing vehicle and traction component is wedge structure, and is provided with radial pin hole on described wedge structure;
Described wedge structure is movably set in, between the bottom surface of described Second Edge and described towing vehicle, or between described 3rd limit and the bottom surface of described towing vehicle.
The invention has the beneficial effects as follows:
Test vehicle haulage gear of the present invention, by test vehicle coupling assembling, traction component and connecting link, the connection between test vehicle and towing vehicle is made to be improved to soft mounting by Hard link, and when abrupt deceleration vehicle is braked, traction component can rotate forward and tilt under penetration force effect, realize test vehicle coupling assembling and traction component realizes optimal separation, effectively avoid the test vehicle after drawing column interference hits, thus cause the danger of secondary collision.
Accompanying drawing explanation
Fig. 1 is existing complete automobile collision test principle figure;
Fig. 2 is test vehicle haulage gear schematic diagram of the present invention;
Fig. 3 is test vehicle coupling assembling schematic diagram;
Fig. 4 is traction component front view;
Fig. 5 is the stressed schematic diagram of braking instantaneous traction assembly;
Fig. 6 is traction hook structure schematic diagram;
Fig. 7 is traction hook front view;
Fig. 8 is traction column and understructure schematic diagram;
Fig. 9 is traction column and base front view.
Description of reference numerals
1 traction guide groove, 2 traction columns, 3 wire rope, 01 test vehicle, 02 towing vehicle, 03 abrupt deceleration vehicle, 04 first conduction chain, 05 second conduction chain, 06 contiguous block, 07 traction hook, 08 traction column, 09 base, 10 connecting pins, 11 nuts, 12 connecting links, 071 hanger bulk, 072 kink, 073 draw-in groove, 074 mounting hole, 075 opening, F arrow, 091 center pit, 092 first limit, 093 Second Edge, 094 the 3rd limit.
Embodiment
Describe technical scheme of the present invention in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not be interpreted as being the restriction to technical solution of the present invention.
The invention provides a kind of test vehicle haulage gear, as shown in Fig. 2 to Fig. 9, include test vehicle coupling assembling, traction component and connecting link 12.
Described test vehicle coupling assembling is fixedly connected with test vehicle 01.
Described traction component and towing vehicle 02 are rotationally connected.
Described test vehicle coupling assembling and described traction component mount.
Described connecting link 12 one end is fixedly connected with abrupt deceleration vehicle 03, and the other end is flexibly connected with described towing vehicle and traction component.
Described test vehicle coupling assembling comprises the first conduction chain 04, second conduction chain 05 and contiguous block 06.
One end of described first conduction chain 04 is fixedly connected with described test vehicle 01, and the other end is fixedly connected with described contiguous block 06; One end of described second conduction chain 05 is fixedly connected with described test vehicle 01, and the other end is fixedly connected with described contiguous block 06; First conduction chain and the second conduction chain are all bolted on the chassis suspension of test vehicle, in experimentation, keep the first conduction chain equal with the length of the second conduction chain, with the intact stability in warranty test process, and the convenience of installation process.
Employing chain connects, and because chain can be reused, therefore greatly reducing each test needs to change the traction cost of guide groove and the cost of welding.
First conduction chain 04 is all connected locked with the second conduction chain 05 with contiguous block 06 with bolt, and ensures contiguous block 06 level, prevents test vehicle from the process of traction, because being subject to the traction of side force, sideslip occurring.
Described contiguous block 06 mounts with described traction component.
Described traction component comprises traction hook 07, traction column 08, base 09 and connecting pin 10;
Described traction column 08 one end is fixedly connected with described traction hook 07, and the other end is fixedly connected with described base 09.
Described base 09 is non-equilateral polygon, and in the present embodiment, base is non-equilateral octagon.Described base is provided with center pit 091; Described connecting pin 10 is through described center pit 091; Described traction component with described connecting pin for axle and described towing vehicle 02 are rotationally connected.
The limit that described base 09 is relative with the bottom surface of described towing vehicle is the first limit 092, and two limits adjacent with described first limit 092 are Second Edge 093 and the 3rd limit 094.
The length on described first limit 092 is less than the length of described Second Edge 093, is also less than the length on described 3rd limit 094.The said structure of base makes base can rotate around connecting pin, but Second Edge or the 3rd limit are all interfered with the bottom surface of towing vehicle, avoids traction component transition and rotates and oppositely hinder and depart from test vehicle coupling assembling.
The extended line on described first limit, and the angle between described Second Edge and described 3rd limit is 37 ° ± 0.5 °.Towing vehicle is after being braked by abrupt deceleration vehicle 03 below, even connecting link 12 is replaced with wire rope and there is elasticity, towing vehicle continues because of inertia to move forward a segment distance, but traction column can be toppled over to the arrow F direction in Fig. 5 because of the pulling force of abrupt deceleration vehicle wire rope, thus while realization is separated, simultaneously after traction column is toppled over, the part that traction column stretches out towing vehicle is less than 10cm ± 1cm, reduce the height of traction column, avoid the secondary collision of vehicle.
Described traction hook 07 comprises hanger bulk 071, and the upwards kink 072 be structure as a whole with described hanger bulk 071.
The lower surface of described hanger bulk 071 is provided with draw-in groove 073, the bottom surface of described draw-in groove 073 is provided with mounting hole 074, the upper end of described traction column 08 snaps in described draw-in groove 073; Traction hook directly adopts nut to be connected with traction column, and traction hook is fixed on the top of traction column.
The end face of described kink 072 is provided with the opening 075 of through described kink two sides; Described contiguous block 06 mounts with described opening 075.
Angle between the extended surface of described opening 075 place plane and described hanger bulk 071 place plane is 41 ° ± 0.5 °.Traction hook 07 is used to mount with the contiguous block 06 of test vehicle coupling assembling, contiguous block 06 is hung in the opening 075 of traction hook 07, the angle of inclination of opening 075 is 41 ° ± 0.5 ° (this angle is through multiple authentication and determines), in this angular range, contiguous block and traction hook are the most segregative.
The first pin hole is provided with in the scope corresponding with described Second Edge of the bottom surface of described towing vehicle; The second pin hole is provided with in the described 3rd corresponding scope in limit in the bottom surface of described towing vehicle.
One end that described connecting link 12 is connected with described towing vehicle and traction component is wedge structure, and is provided with radial pin hole on described wedge structure.
Described wedge structure is movably set in, between the bottom surface of described Second Edge and described towing vehicle, or between described 3rd limit and the bottom surface of described towing vehicle.
When carrying out head-on crash experiment, insert the first pin hole and radial pin hole by latch; Pass through wedge structure, traction component is fixed do not rotate, when braking, the damping force of abrupt deceleration vehicle makes have one to loosen between connecting link and towing vehicle, and this loosening force makes latch can deviate from from radial pin hole, the power of fixed traction assembly disappears, therefore, under penetration force effect, traction component rotates, test vehicle coupling assembling is separated with traction component, completes impact test.
When carrying out rear end collision test, insert the second pin hole and radial pin hole by latch; Pass through wedge structure, traction component is fixed do not rotate, when braking, the damping force of abrupt deceleration vehicle makes have one to loosen between connecting link and towing vehicle, and this loosening force makes latch can deviate from from radial pin hole, the power of fixed traction assembly disappears, therefore, under penetration force effect, traction component rotates, test vehicle coupling assembling is separated with traction component, completes impact test.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (10)
1. a test vehicle haulage gear, is characterized in that: include test vehicle coupling assembling, traction component and connecting link;
Described test vehicle coupling assembling is used for being fixedly connected with test vehicle;
Described traction component is used for being rotationally connected with towing vehicle;
Described test vehicle coupling assembling and described traction component mount;
Described connecting link one end is used for being fixedly connected with abrupt deceleration vehicle, and the other end is used for being flexibly connected with described towing vehicle and traction component respectively.
2. test vehicle haulage gear according to claim 1, is characterized in that: described test vehicle coupling assembling comprises the first conduction chain, the second conduction chain and contiguous block;
One end of described first conduction chain is used for being fixedly connected with described test vehicle, and the other end is fixedly connected with described contiguous block;
One end of described second conduction chain is used for being fixedly connected with described test vehicle, and the other end is fixedly connected with described contiguous block;
Described contiguous block and described traction component mount.
3. test vehicle haulage gear according to claim 2, is characterized in that: described traction component comprises traction hook, traction column, base and connecting pin;
Described traction column one end is fixedly connected with described traction hook, and the other end is fixedly connected with described base;
Described base is non-equilateral polygon, and described base is provided with center pit; Described connecting pin is through described center pit; Described traction component with described connecting pin for axle and described towing vehicle are rotationally connected.
4. test vehicle haulage gear according to claim 3, is characterized in that: described traction hook comprises hanger bulk, and the kink be upwards structure as a whole with described hanger bulk;
The lower surface of described hanger bulk is provided with draw-in groove, the bottom surface of described draw-in groove is provided with mounting hole, the upper end of described traction column snaps in described draw-in groove;
The end face of described kink is provided with the opening of through described kink two sides; Described contiguous block and described opening mount.
5. test vehicle haulage gear according to claim 4, is characterized in that: the angle between the extended surface of described opening place plane and described hanger bulk place plane is 41 ° ± 0.5 °.
6. test vehicle haulage gear according to claim 3, is characterized in that: the limit that described base is relative with the bottom surface of described towing vehicle is the first limit, and two limits adjacent with described first limit are Second Edge and the 3rd limit;
The length on described first limit is less than the length of described Second Edge, is also less than the length on described 3rd limit.
7. test vehicle haulage gear according to claim 6, is characterized in that: the extended line on described first limit, and the angle between described Second Edge and described 3rd limit is 37 ° ± 0.5 °.
8. a test vehicle collision system, includes test vehicle, towing vehicle and abrupt deceleration vehicle, it is characterized in that: described test vehicle collision system also includes the test vehicle haulage gear any one of the claims 1 to 7.
9. test vehicle collision system according to claim 8, is characterized in that: described towing vehicle is provided with the bottom surface for matching with described traction component; Described traction component comprises base; The limit that described base is relative with the bottom surface of described towing vehicle is the first limit, and two limits adjacent with described first limit are Second Edge and the 3rd limit;
The first pin hole is provided with in the scope corresponding with described Second Edge of the bottom surface of described towing vehicle; The second pin hole is provided with in the described 3rd corresponding scope in limit in the bottom surface of described towing vehicle.
10. test vehicle collision system according to claim 9, is characterized in that: one end that described connecting link is connected with described towing vehicle and traction component is wedge structure, and is provided with radial pin hole on described wedge structure;
Described wedge structure is movably set in, between the bottom surface of described Second Edge and described towing vehicle, or between described 3rd limit and the bottom surface of described towing vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610045154.1A CN105571877B (en) | 2016-01-22 | 2016-01-22 | A kind of test vehicle haulage gear and collision system |
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| CN201610045154.1A CN105571877B (en) | 2016-01-22 | 2016-01-22 | A kind of test vehicle haulage gear and collision system |
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| CN105571877B CN105571877B (en) | 2017-11-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106596121A (en) * | 2016-08-24 | 2017-04-26 | 襄阳达安汽车检测中心 | Simulation apparatus and simulation method for AEBS test |
| CN109791093A (en) * | 2016-07-06 | 2019-05-21 | 4灵动***股份有限公司 | The moveable platform with flexible ontology of the case where for test collisions or close collision |
| CN113465944A (en) * | 2021-06-30 | 2021-10-01 | 安徽江淮汽车集团股份有限公司 | Safety traction device for automobile crash test |
| CN113844216A (en) * | 2021-09-30 | 2021-12-28 | 重庆长安汽车股份有限公司 | Emergency braking system for AEB system test by using traction system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109791093A (en) * | 2016-07-06 | 2019-05-21 | 4灵动***股份有限公司 | The moveable platform with flexible ontology of the case where for test collisions or close collision |
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| CN113844216A (en) * | 2021-09-30 | 2021-12-28 | 重庆长安汽车股份有限公司 | Emergency braking system for AEB system test by using traction system |
| CN113844216B (en) * | 2021-09-30 | 2023-09-12 | 重庆长安汽车股份有限公司 | Emergency braking system for AEB system test by using traction system |
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| CN105571877B (en) | 2017-11-03 |
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