CN1262827C - Passenger vehicle body structure bending-rigid test restraining and loading device - Google Patents
Passenger vehicle body structure bending-rigid test restraining and loading device Download PDFInfo
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- CN1262827C CN1262827C CN 02146781 CN02146781A CN1262827C CN 1262827 C CN1262827 C CN 1262827C CN 02146781 CN02146781 CN 02146781 CN 02146781 A CN02146781 A CN 02146781A CN 1262827 C CN1262827 C CN 1262827C
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Abstract
The present invention relates to a testing constraining and loading device for the rigidity of the structural bending of a BIW of a passenger vehicle, which belongs to the technical field of the testing of vehicle products. The device comprises a constraining device and a loading device which are fixed on a working table, wherein the constraining device comprises a front, left and right support seat, a connecting component for connecting the support seat with a front, left and right vertical beam, a back, left and right support seat and a connecting component for connecting the back, left and right support seat with a back, left and right vertical beam; the loading device is composed of a screw rod force device and a force transmission mechanism. Compared with the existing testing device of the torsional rigidity of the BIW structure of the passenger vehicle widely, which is widely used for China and foreign countries, the present invention has the advantages of low cost, strong universality (a special clamp and a force transmission mechanism do not need to be developed in view of different vehicle models) and convenient operation. The present invention can satisfy requirements for testing precision and reliability totally.
Description
Technical field
The present invention relates to a kind of car white vehicle body structure bending stiffness test constraint and loading equipemtn, belong to the automobile product technical field of measurement and test.
Background technology
Bending stiffness is one of car white vehicle body structure performance that must satisfy.In the passenger car product development process, must carry out the test of bending stiffness by the dialogue body structure, whether satisfy the bending stiffness performance requirement to estimate the body in white structure of being developed.Therefore, body in white structural bending rigidity testing system is an exploitation passenger car product imperative equipment.Constraint is a body in white structural bending rigidity testing system major equipment with charger." automobile intensity " and Liu Weixin chief editor in that Japanese car technological associations compile have proposed car white vehicle body structure bending stiffness test constraint and the basic demand that loads in the books such as " Automobile Design " that publishing house of Tsing-Hua University publishes.These basic demands are:
(1) fixing body tail, the ordinate of fixed position is the rear shaft center position, applies moment of torsion in the perpendicular at front axle center line place;
(2) rigidity of its restraint device and charger can not exert an influence to test result.
But all do not relate to following content in the above-mentioned data:
(1) the concrete constrained procedure of car white vehicle body structure bending stiffness test and the concrete structure of restraint device;
(2) the concrete loading method of car white vehicle body structure bending stiffness test and the concrete structure of charger;
Though the constrained procedure of some motor corporation's test body in white bending stiffnesses in some other country as Japan and Europe is basic identical in the world, but what restraint device adopted all is the unit clamp of developing at different automobile types, this just means that vehicle of every test all needs to develop the special-purpose restraint device of a cover, that is to say if test the bending stiffness of Citroen zx and these two kinds of cars of Santana, though be car equally, but still need the different restraint device of exploitation two covers, so this method because of time-consuming, take a lot of work and not have the versatility cost higher.
Aspect loading method, these companies are also basic identical, promptly adopt general fluid pressure type to put forth effort device and produce power, power are delivered to the position of stipulating on the body in white by force transfer mechanism.General fluid pressure type is puted forth effort device and not only be can be used for testing the body in white bending stiffness, also can be used for other test, but general fluid pressure type puts forth effort device and cost an arm and a leg, and a fluid pressure type that can be used for body in white structural bending rigidity test is puted forth effort the device price about 300,000 Renminbi.Force transfer mechanism and restraint device need be developed specially at different automobile types equally simultaneously.
Summary of the invention
At the deficiencies in the prior art and defective, the invention provides a kind of car white vehicle body structure bending stiffness test constraint and charger, make it can be applicable to different automobile types, promptly have stronger versatility, can effectively reduce cost again.
Technical scheme of the present invention is as follows:
A kind of car white vehicle body structure bending stiffness test constraint and charger, it is characterized in that: this device comprises restraint device and the charger two parts that are fixed on the worktable, the link of left-right longeron before left and right bearing and connection bearing and the vehicle body before described restraint device comprises, the link of left-right longeron behind the left and right bearing in back and connection bearing and the vehicle body; Described charger puts forth effort device by screw type and force transfer mechanism is formed, described force transfer mechanism mainly by the arm of force, the wire rope that passes pulley, the depression bar beam of band pulley, be supported on the supporting pad in the arm of force and depression bar beam centre position and be arranged on vehicle body and the depression bar beam between and the left and right sides supporting pad of symmetric arrangement, one end of described wire rope is fixed on the worktable, the other end is puted forth effort device with screw type and is connected, and described screw type is puted forth effort device and is fixed on the worktable.
Screw type of the present invention is puted forth effort device and is comprised by feed screw nut and the screw pair formed of lead screw shaft of band handle, the bindiny mechanism that is connected lead screw shaft and strain-type force sensor, strain force sensor, hook and screw type is puted forth effort device and be fixed on hinge on the worktable.Described bindiny mechanism is made up of with the thrust bearing that is connected steel framework and lead screw shaft the steel framework of strap bolt, and its strain-type force sensor is fixed on the steel framework.
Bearing adopts the supporting construction that contacts with body line with the link of front stringpiece of vehicle body before described, the link of described rear support and vehicle body floor side member adopts hinge arrangement, perhaps rear support adopts the supporting construction that contacts with body line with the link of vehicle body floor side member, and the link of preceding bearing and front stringpiece of vehicle body adopts hinge arrangement.
It is leg-of-mutton steel pad that supporting pad between the arm of force described in the present invention and the depression bar beam adopts section.Left and right sides supporting pad between its vehicle body and the depression bar beam adopts headblock.
Institute's worktable in order to fixed constraint device and charger among the present invention adopts the T type groove worktable that can adjust the bearing fixed position.
The present invention compares with the car white vehicle body structure bending stiffness device of at present external widespread use, have that cost significantly reduces, highly versatile (need not develop unit clamp and force transfer mechanism at different automobile types), advantages of simple operation can satisfy the requirement of measuring accuracy and reliability fully.
Description of drawings
Fig. 1 is constraint and the charger structural representation (front view) that is used for the bending stiffness test.
Fig. 2 is constraint and the charger structural representation (vertical view) that is used for the bending stiffness test.
Fig. 3 is the charger structural representation that is used for the bending stiffness test.
Fig. 4 is that screw type is puted forth effort the device structural representation.
Fig. 5 is bindiny mechanism's structural representation.
Embodiment
This device comprises restraint device and the charger two parts that are fixed on the worktable, further specifies concrete structure of the present invention and optimal way below in conjunction with accompanying drawing:
One. restraint device: from Fig. 1,2 as can be known, the link 2,8 of left-right longeron before left and right bearing 1,7 and connection bearing and the vehicle body before restraint device comprises, the link 5,10 of left-right longeron behind the left and right bearing 6,9 in back and connection bearing and the vehicle body; Bearing 1,7,6,9 adopts and is bolted on the T type groove worktable, and can adjust the bearing fixed position, to adapt to the purpose of different length and width vehicle body.Adopt the round steel post to be placed on as link 2,8 in the groove of bearing 1,7, vehicle body left and right sides front longitudinal is bearing on the bearing 1,7 by round steel post 2,8, and front longitudinal produces line with the round steel post and contacts; Adopt hinge as link 5,10, vehicle body left and right sides floor side member is connected on the bearing 6,9 by hinge 5,10, otherwise perhaps.The free beam the way of restraint of a back hinge or a back front-hinged before like this, just having formed.When the body in white structure produced winding degree bearing downward bending load, front longitudinal can freely rotate and moving freely of (Y) longitudinally around the axle of the lateral coordinates (X) by supporting-point, and the along slope coordinate of bearing position is positioned at the front axle center position.Floor side member can freely rotate around lateral coordinates (X) axle by tie point, and the along slope coordinate of link position is positioned at the rear shaft center position.So both reached the purpose of constraint, the rigidity that the reaches restraint device again purpose of test result that do not exert an influence.
Two, charger: as can be seen from Figure 3, charger comprises that screw type puts forth effort device and force transfer mechanism and form, described force transfer mechanism mainly by the arm of force 4, the wire rope 12 that passes pulley, the depression bar beam 13 of band pulley 14,18, be supported on the supporting pad 16 in the arm of force 4 and depression bar beam 13 centre positions and be arranged on vehicle body and the depression bar beam between and the left and right sides supporting pad 15,17 of symmetric arrangement.Adopt hook as with the web member of steel wire on fixing T type groove worktable, hook 11 adopts and is bolted on the T type groove worktable, one end of wire rope 12 hangs on the hook 11, the other end is walked around pulley 14 and 18 and is connected screw type and puts forth effort on the device, pulley 14 and 18 symmetries are fixed on the arm of force 4, adopt three angle steel pads as intermediate support pad 16, be supported on the centre position of the arm of force 4 and depression bar 13, adopt headblock as left and right sides support pads 15 and 17 symmetric support on depression bar 13 and body in white (crossbeam at vehicle body middle part), so just realized the purpose of the bearing position symmetric arrangement of left and right sides pulley 14 and intermediate support pad 16 relative with support pads 15 with 17 with 18.Putting forth effort device when screw type makes wire rope 12 produce downward tension force, wire rope makes the loading arm of force 4 bear downward power by left and right sides pulley mechanism 14 and 18, the arm of force 4 makes depression bar beam 13 bear downward power by three angle steel pads 16, depression bar beam 13 makes vehicle body be loaded the position by headblock 15 and 17 and bears downward power, thereby makes vehicle body bear bending load.
As can be seen from Figure 4, screw type is puted forth effort device and is comprised by feed screw nut 19 and the screw pair formed of lead screw shaft 21 of band handle 22, the bindiny mechanism that is connected lead screw shaft and strain-type force sensor, strain force sensor 24, links up with 25 and hinge 20.
Adopt hinge 20 that screw type is puted forth effort the device overall fixed on T type groove worktable.When rotation was welded on handle 22 on the lead screw shaft 21, lead screw shaft 21 moved downward.Lead screw shaft connects strain-type force sensor 24 by bindiny mechanism, strain-type force sensor is connected with wire rope 12 by hook 25 (as the web members of strain force sensor and wire rope), by these links wire rope 12 is acted on a downward pulling force when lead screw shaft 21 moves downward.
As can be seen from Figure 5, lead screw shaft 21 in the bindiny mechanism is connected with steel framework 23 by axial thrust bearing 26, steel framework 23 in variant force cell 24 and the bindiny mechanism adopts bolts to be connected, so just effectively avoided when lead screw shaft is rotated, steel framework and connected strain-type force sensor rotate with lead screw shaft.
Claims (6)
1. a car white vehicle body structure bending stiffness test retrains and charger, it is characterized in that: this device comprises restraint device and the charger two parts that are fixed on the worktable, the link of left-right longeron before left and right bearing and connection bearing and the vehicle body before described restraint device comprises, the link of left-right longeron behind the left and right bearing in back and connection bearing and the vehicle body, described preceding bearing adopts the supporting construction that contacts with body line with the link of front stringpiece of vehicle body; The link of described rear support and vehicle body floor side member adopts hinge arrangement, and perhaps rear support adopts the supporting construction that contacts with body line with the link of vehicle body floor side member, and the link of preceding bearing and front stringpiece of vehicle body adopts hinge arrangement; Described charger puts forth effort device by screw type and force transfer mechanism is formed, described force transfer mechanism by the arm of force (4), the wire rope (12) that passes pulley, the depression bar beam of band pulley, be supported on the supporting pad (16) in the arm of force (4) and depression bar beam (13) centre position and be arranged on the vehicle body middle beam and the depression bar beam between and the left and right sides supporting pad (15,17) of symmetric arrangement, one end of described wire rope is fixed on the worktable, the other end is puted forth effort device with screw type and is connected, and described screw type is puted forth effort device and is fixed on the worktable; Screw type is puted forth effort device makes wire rope (12) produce downward pulling force, wire rope makes the arm of force (4) bear downward power by left and right sides pulley mechanism (14,18), the arm of force (4) makes depression bar beam (13) bear downward power by supporting pad (16), depression bar beam (13) makes vehicle body be loaded the position by left and right sides supporting pad (15,17) and bears downward force, and vehicle body bears bending load.
2. according to the described device of claim 1, it is characterized in that: described screw type is puted forth effort device and is comprised by screw pair, the bindiny mechanism that is connected lead screw shaft and strain-type force sensor, the strain force sensor (24) formed of lead screw shaft (21) of feed screw nut (19) and band handle, is arranged on the strain force sensor and the hook (25) that is connected with wire rope and screw type is puted forth effort device be fixed on hinge (20) on the worktable.
3. according to the described device of claim 2, its feature in: described bindiny mechanism is made up of with the thrust bearing that is connected steel framework and lead screw shaft the steel framework (23) of strap bolt, and its strain-type force sensor is fixed on the steel framework.
4. according to the described device of the arbitrary claim of claim 1～3, it is characterized in that: it is leg-of-mutton steel pad that the supporting pad between the described arm of force and the depression bar beam adopts section.
5. according to the described device of claim 4, it is characterized in that: the left and right sides supporting pad between vehicle body and the depression bar beam adopts headblock.
6. according to the described device of claim 4, it is characterized in that: described worktable adopts the T type groove worktable that can adjust the bearing fixed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02146781 CN1262827C (en) | 2002-11-08 | 2002-11-08 | Passenger vehicle body structure bending-rigid test restraining and loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02146781 CN1262827C (en) | 2002-11-08 | 2002-11-08 | Passenger vehicle body structure bending-rigid test restraining and loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1405545A CN1405545A (en) | 2003-03-26 |
| CN1262827C true CN1262827C (en) | 2006-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02146781 Expired - Fee Related CN1262827C (en) | 2002-11-08 | 2002-11-08 | Passenger vehicle body structure bending-rigid test restraining and loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1262827C (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072803B (en) * | 2010-12-24 | 2012-11-07 | 江苏大学 | Rigidity test restraining device of car frame |
| CN102230839B (en) * | 2011-04-08 | 2013-11-06 | 清华大学 | Electric/hand-operated one body loaded car white vehicle body torsion static angular rigidity testing system |
| CN102305719B (en) * | 2011-08-17 | 2014-09-10 | 长春轨道客车股份有限公司 | Vehicle body steel structure distortion detection method |
| CN102435508B (en) * | 2011-09-14 | 2013-11-06 | 江苏科技大学 | White car body static stiffness restriction device and static stiffness detection method |
| CN102564722B (en) * | 2012-02-17 | 2014-06-18 | 浙江吉利汽车研究院有限公司 | Installation seat for white automobile body |
| CN102590334B (en) * | 2012-02-29 | 2015-07-15 | 湖南湖大艾盛汽车技术开发有限公司 | Complete set of eddy current flaw detection equipment for white vehicle body or parts |
| CN103499497B (en) * | 2013-10-11 | 2015-11-18 | 华北电力大学（保定） | A kind of pole line measurer for curve rigid |
| CN104913992A (en) * | 2015-07-01 | 2015-09-16 | 合肥兴科机电科技有限公司 | Testing device |
| CN107121248B (en) * | 2017-06-20 | 2024-05-31 | 辽宁工业大学 | Torsional rigidity test bed for formula car frame and test method thereof |
| CN108020429B (en) * | 2017-11-28 | 2024-02-09 | 中国汽车工程研究院股份有限公司 | Common passenger car body-in-white torsional rigidity test loading device |
| CN108181169B (en) * | 2017-12-15 | 2020-08-04 | 奇瑞汽车股份有限公司 | Loading device for static rigidity test of passenger vehicle body |
| CN107991196A (en) * | 2017-12-28 | 2018-05-04 | 上汽通用五菱汽车股份有限公司 | A kind of car white vehicle vehicle body joint stiffness measuring device |
| CN108827654A (en) * | 2018-07-04 | 2018-11-16 | 中国汽车工程研究院股份有限公司 | White body bending stiffness loading device for testing and bending stiffness test macro |
| CN111122173A (en) * | 2018-10-31 | 2020-05-08 | 中国北方车辆研究所 | Restraint device for loading white body of cab |
| CN111707429B (en) * | 2020-06-29 | 2021-06-08 | 安徽江淮汽车集团股份有限公司 | Fixed connection device and equipment for vehicle body bending rigidity test |
| CN113432891B (en) * | 2021-06-29 | 2023-03-21 | 江铃汽车股份有限公司 | Device and method for testing static bending rigidity of cab of flat-head truck |
-
2002
- 2002-11-08 CN CN 02146781 patent/CN1262827C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1405545A (en) | 2003-03-26 |
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Granted publication date: 20060705 Termination date: 20131108 |