CN107588965B - A kind of device of car test for static load - Google Patents
A kind of device of car test for static load Download PDFInfo
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- CN107588965B CN107588965B CN201710610571.0A CN201710610571A CN107588965B CN 107588965 B CN107588965 B CN 107588965B CN 201710610571 A CN201710610571 A CN 201710610571A CN 107588965 B CN107588965 B CN 107588965B
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Abstract
The present invention relates to automotive fields, and in particular to a kind of device of car test for static load.The coordination seat that each support of the present invention separately includes the spiral adjustable supporting support leg of bottom and matches with chassis hard spot, spiral adjustable supporting support leg realizes upper backspin liter by the structure that screw thread-like engages, bearing height flexible modulation as needed, four support leg structures are completely the same, interchangeable.The main structure of four coordination seats is a point front and back arrangement, two-by-two unanimously；But coordinate the structure distribution that seat lower part cooperates with supporting leg for four to design by the freedom degree restrained condition of four supporting points.It is all a sphere at the top of four spiral adjustable supporting support legs, four coordination seat substructures press the design of freedom degree constraint requirements respectively, when coordinating seat cooperation with top, can guarantee all rotational freedoms of release.The advantages that the device of the invention has versatility good, and applicability is extensive, and various working uses the All-in-One of same device to test, and test is easy for installation, and operation is simple and reliable.
Description
Technical field
The present invention relates to automotive fields, and in particular to a kind of device of car test for static load.
Background technique
The device of existing car test for static load mainly to increase support base at chassis hard spot and is welded and fixed, main
If installing support to guarantee vehicle body level condition, and adjust vehicle body it is horizontal after, chassis hard spot be in support and is welded
It is connected together, is fixed by welding manner staff cultivation.Which can have support and vehicle body corrdinated adjustment level is relatively difficult,
Heavy workload；And vehicle body welds together with support device, all freedom degrees of Complete Bind, with real vehicle operating condition fulcrum
Freedom degree is inconsistent；Simultaneously because support is non-adjustable, the modes such as be welded and fixed, also result in different operating conditions in test need it is additional
Refitting support or the support for separately designing bending and twisting conditions, spend human and material resources financial resources, increase workload, increase multiple
Replace the test error and uncertainty of support.
By welding the support base fixed with vehicle body, maximum drawback is that welding manner virtually additionally increases vehicle
The rigidity of body chassis is unable to characterize the actual flexion torsion stiffness characteristics of vehicle body so that test result is less than normal.In addition it is welded and fixed
All freedom degrees of six direction have been constrained, it is completely inconsistent with vehicle actual moving process, but also measurement result cannot
Accurately reflect the stiffness by itself of vehicle body.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of devices of car test for static load.Apparatus of the present invention bottom
The spiral adjustable supporting support leg in portion can general exchange, and pass through the structure that screw thread-like engages and realize upper backspin liter, dress
Any test site and vehicle can be suitable for according to test demand flexible modulation by setting bearing height.Sphere at the top of spiral support leg
After coordinating the cooperation of seat lower part fit structure, the freedom degree constraint realized at four fulcrums of vehicle body is consistent with actual condition.Tool
There is versatility good, applicability is extensive, and various working uses the All-in-One of same device to test, tests easy for installation, operation letter
The advantages that single reliable.
The technical scheme is that a kind of device of car test for static load, including left front support, right anterior branch seat, a left side
Rear support, right rear support, preceding coordination seat main body and rear coordination seat main body, wherein preceding seat main body of coordinating is fixed with vehicle foreside to be measured
Left front support is installed in connection, preceding coordination seat main body left side；Right anterior branch seat is installed on the right side of preceding coordination seat main body；Afterwards coordinate seat main body with
Body tail to be measured is fixedly connected, rear to coordinate to install left back support on the left of seat main body, rear to coordinate to prop up after installation is right on the right side of seat main body
Seat, it is characterised in that: the left front support includes spiral adjustable supporting support leg and left front coordination seat understructure, left front coordination seat
Understructure is coordinated before being fixedly mounted in seat main body, sets rectangular cavity, spiral adjustable supporting in left front coordination seat understructure
The bulb of support leg is supported in the left front rectangular cavity for coordinating seat understructure, and bulb is contacted with upper surface in rectangular cavity；It is right
Preceding support includes spiral adjustable supporting support leg and coordinates seat understructure before right, coordinates seat understructure lower part before right and sets arch circular arc
Groove, the axis direction of arch arc groove along vehicle body longitudinal direction, the arc radius in the cross section of arch arc groove and bulb
Spherical radius is identical, and the bulb of spiral adjustable supporting support leg is placed in the arch arc groove for coordinating seat understructure before the right side, ball
Head is bonded with arch arc groove；Right rear support includes spiral adjustable supporting support leg and coordinates seat understructure after right, is coordinated after right
Hemi-spherical cavities are set in seat understructure, the radius of hemi-spherical cavities and the radius of bulb are identical, the ball of spiral adjustable supporting support leg
Head is placed in the hemi-spherical cavities for coordinating seat understructure behind the right side, and is completely bonded with hemi-spherical cavities；Left back support packet
Spiral adjustable supporting support leg and left back coordination seat understructure are included, left back coordination seat understructure divides into arch arc groove, arch
The axis direction of arc groove is along vehicle body transverse direction, the spherical radius phase of the arc radius and bulb in the cross section of arch arc groove
Together, the bulb of spiral adjustable supporting support leg is placed in the left back arch arc groove for coordinating seat understructure, bulb and arch circle
The fitting of arc groove；The spiral adjustable supporting support leg structure phase of the left front support, right anterior branch seat, left back support and right rear support
Together, each spiral adjustable supporting support leg includes supporting support seat, spiral adjustable supporting dagger, bulb, and supporting support seat is arranged in bottom,
Supporting support seat is weldingly fixed on the horizontal steel plate of test site laying, and supporting support seat top and spiral adjustable supporting dagger connect
It connects, spiral adjustable supporting dagger top is fixedly connected with bulb.
According to the device of car test for static load as described above, it is characterised in that: the supporting support seat top is logical
Thread engaging structure is crossed to connect with spiral adjustable supporting dagger.
According to the device of car test for static load as described above, it is characterised in that: the bulb is sphere.
The beneficial effects of the present invention are: 1, spiral adjustable supporting support leg can realize backspin liter, bearing height is adjustable, is suitable for
Different test site environment.2, after sphere and coordination seat lower part fit structure cooperate at the top of spiral support leg, it is able to achieve vehicle body
Freedom degree constraint at four fulcrums is consistent with actual condition, and test result really reflects that the rigidity of test actual operating mode is special
Property.3, test device is not by being weldingly fixed on vehicle body, but design match with chassis hard spot and fit structure assembles fixation,
Repeatable dismounting, it is easy for installation.4, can various working use same device to test, it is simple and reliable, it is convenient and practical.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the invention；
Fig. 2 is the schematic diagram of left front support of the invention；
Fig. 3 is the schematic diagram of right anterior branch seat of the invention；
Fig. 4 is the schematic diagram of right rear support of the invention；
Fig. 5 is the schematic diagram of left back support of the invention.
Figure label respectively indicates: 1-vehicle body, 2-left front supports, 3-right anterior branch seats, 4-left back supports, after 5-is right
Support, 6-supporting support seats, 7-spiral adjustable supporting daggers, 8-bulbs, 9-left front coordination seat understructures, 10-preceding coordinations
Seat main body, 11-it is right before coordinate seat understructures, 12-it is right after coordinate seat understructure, 13-it is rear coordinate seat main bodys, 14-is left
Coordinate seat understructure afterwards.
Specific embodiment
The present invention is described in detail below with reference to embodiment and its attached drawing.Embodiment be based on the technical solution of the present invention under
Implemented, gives detailed embodiment and process.But the protection scope of the claims in the present invention is not limited to following realities
Apply example.
Technical scheme is described further with reference to the accompanying drawing:
As shown in Figures 1 to 5, the device of car test for static load of the invention includes left front support 2, right anterior branch seat 3, a left side
Rear support 4, right rear support 5, preceding coordination seat main body 10 and rear coordination seat main body 13, wherein preceding coordinate seat main body 10 and vehicle body to be measured
1 front is fixedly connected, and installs left front support 2 on the left of preceding coordination seat main body 10；Right anterior branch seat is installed on the right side of preceding coordination seat main body 10
3；Coordinate seat main body 13 afterwards to be fixedly connected with 1 rear portion of vehicle body to be measured, it is rear to coordinate that left back support 4 is installed on the left of seat main body 13, it is rear to assist
It adjusts and right rear support 5 is installed on the right side of seat main body 13.
As shown in Figures 2 to 5, left front support 2 includes spiral adjustable supporting support leg and left front coordination seat understructure 9, left front
Coordinate to coordinate before seat understructure 9 is fixedly mounted in seat main body 10, set rectangular cavity in left front coordination seat understructure 9,
The bulb 8 of spiral adjustable supporting support leg is supported in the left front rectangular cavity for coordinating seat understructure 9, in bulb 8 and rectangular cavity
Upper surface contact；Right anterior branch seat 3 includes spiral adjustable supporting support leg and coordinates seat understructure 11 before right, coordinates seat pedestal knot before right
11 lower part of structure sets arch arc groove, and the axis direction of arch arc groove is along vehicle body longitudinal direction, the cross section of arch arc groove
Arc radius it is identical as the spherical radius of bulb 8, the bulb 8 of spiral adjustable supporting support leg, which is placed on before the right side, coordinates seat understructure
In 11 arch arc groove, bulb 8 is just bonded with arch arc groove；Right rear support 5 include spiral adjustable supporting support leg and
Coordinate seat understructure 12 behind the right side, coordinates to set hemi-spherical cavities, the radius and ball of hemi-spherical cavities in seat understructure 12 after right
First 8 radius is identical, and the bulb 8 of spiral adjustable supporting support leg is placed in the hemi-spherical cavities for coordinating seat understructure 12 behind the right side,
And it is completely bonded with hemi-spherical cavities；Left back support 4 includes spiral adjustable supporting support leg and left back coordination seat understructure 14, a left side
Coordinate seat understructure 14 afterwards and divide into arch arc groove, the axis direction of arch arc groove is along vehicle body transverse direction, arch circular arc
The arc radius in the cross section of groove is identical as the spherical radius of bulb 8, and the bulb 8 of spiral adjustable supporting support leg is placed on left back association
In the arch arc groove for adjusting seat understructure 14, bulb 8 is just bonded with arch arc groove.The master of such four coordinations seat
Body structure point front and back arrangement, front and back are consistent two-by-two；But four are coordinated the structure distribution of seat lower part and the cooperation of spiral adjustable supporting support leg
By the freedom degree restrained condition design of four supporting points.
As shown in Figures 2 to 5, the spiral of left front support 2 of the invention, right anterior branch seat 3, left back support 4 and right rear support 5
Adjustable supporting support leg structure is identical, and each spiral adjustable supporting support leg includes supporting support seat 6, spiral adjustable supporting dagger 7, bulb 8, branch
It supports carrier base 6 to be arranged in bottom, supporting support seat 6 is weldingly fixed on the horizontal steel plate of test site laying, supporting support seat 6
Top is connect by thread engaging structure with spiral adjustable supporting dagger 7, and 7 top of spiral adjustable supporting dagger is fixedly connected with bulb 8.This
Sample makes four spiral adjustable supporting support legs have exchange versatility, and has cooperated the physical constraint shape at 4 hard spots of body understructure
State can guarantee that the device can be used for the test of vehicle body bending operating condition and twisting conditions simultaneously.Supporting support seat 6 and spiral adjustable supporting
The structure of the screw thread engagement of dagger 7 can allow each support to realize upper backspin liter, so that the device of the invention integrally can be adjusted flexibly
Section.
As the further scheme of the present invention, the bulb 8 at the top of four spiral adjustable supporting support legs of the invention is sphere, in this way
With play top tune seat base engagement when, can guarantee all rotational freedoms of release, it is ensured that the constraint of rotational freedom with
Actual condition it is consistent.
Test device basic principle in this patent are as follows: before test starts, vehicle body 1 is steadily lifted using fork truck, successively
By left front coordination seat understructure 9, preceding coordination seat main body 10 coordinates seat understructure 11, coordinates seat understructure after right before right
12, rear to coordinate seat main body 13, left back coordination seat understructure 14, which is respectively cooperating with, is installed to corresponding chassis hard spot position, and
It is completely fixed with bolt.Then by supporting support seat 6, spiral adjustable supporting dagger 7, bulb 8 is also coupled, and installation requirement is
Guarantee that spiral adjustable supporting dagger 7 is spun on the middle and upper part position of supporting support seat 6, it is ensured that the reasonable up and down row of bulb 8
Journey.Vehicle body 1 is slowly transferred with fork truck again, while lower part adjustment supporting support seat 6, spiral adjustable supporting dagger 7, bulb 8 combine
Spiral adjustable supporting support leg structural system, guarantee bulb 8 and left front coordinations seat understructure 9, it is right before coordination seat understructure 11,
Coordinate seat understructure 12 behind the right side, (vertical geometric center is completely heavy for the good cooperation position of left back coordination seat understructure 14
It closes).Finally four supporting support seats 6 are weldingly fixed on the horizontal steel plate of test site laying, guarantee entire test device
Be completely fixed with ground and axis vertically upward.Test device system is installed at this time, at this time bulb 8 and coordination seat pedestal knot
Structure ensures that the freedom degree constraint of each supporting point after working good, due to being that bulb 8 supports, the rotation at all fulcrums is certainly
All it is released by spending, while structure cooperation different at four supporting points also ensures respective translational degree of freedom --- left front branch
Point constraint Z-direction, has decontroled X, Y-direction；Right anterior branch point constrain Y, Z-direction, decontroled X to；Left back fulcrum constrains X, Z-direction, has decontroled Y
To；Right rear fulcrum constraint X, Y, (wherein X represents vehicle body or so transverse direction, Z to vehicle body front and back axis direction, Y-direction is represented to Z-direction
Xiang representing vehicle body vertically upward).
The test job principle of test device: as shown in Figure 1, after vehicle body is horizontally arranged at apparatus system, it can be by test
Content installs the sensor (displacement sensor, foil gauge, strain rosette etc.) of test, and vehicle body load working condition can utilize standard matter
Amount sandbag (25kg/ bags) is put by load physical location to be carried out simulation no-load, semi-load, reorganizes and outfit, fully loaded body quality operating condition.Vehicle body is curved
Bent operating condition can directly test the displacement and strain of each measuring point of vehicle body before and after loaded load, and vehicle body twisting conditions can directly screw off left front
The left front coordination seat understructure 9 and coordination seat pedestal knot before the right side for so that bulb 8 is left top with the spiral adjustable supporting dagger 7 before the right side
Structure 11, record screws off displacement and the strain value of 8 each measuring point of front and back vehicle body of bulb respectively, and the left and right twisting conditions of vehicle body can be realized
Test.This test device is installed and used and convenient disassembly, and place applicability is good, structure and flexible modulation, and constraint freedom degree is more
Meet the practical freedom degree of travel condition of vehicle, it is reusable, it is more able to achieve the All-in-One test of multi-state, it is practical.
It should be noted that the peace of the components such as " upper and lower ", " forward and backward " described in apparatus of the present invention system, " left and right "
The dress noun of locality only has relativity, or merely to narration conveniently, does not represent the uniqueness and indispensability of the installation site.This
The embodiment of invention device system can according to need to do completely and nonessential suitably adjust and change.
Apparatus of the present invention system do not address place be suitable for the prior art, be particularly suitable for applicant first patent or
Patent application technology.
Claims (3)
1. a kind of device of car test for static load, including left front support, right anterior branch seat, left back support, right rear support, preceding coordination
Seat main body and rear coordination seat main body, wherein preceding seat main body of coordinating is fixedly connected with vehicle foreside to be measured, on the left of preceding coordination seat main body
Left front support is installed；Right anterior branch seat is installed on the right side of preceding coordination seat main body；Coordinate seat main body afterwards to be fixedly connected with body tail to be measured,
Coordinate that left back support is installed on the left of seat main body afterwards, it is rear to coordinate that right rear support is installed on the right side of seat main body, it is characterised in that: the left side
Preceding support includes spiral adjustable supporting support leg and left front coordination seat understructure, and left front coordination seat understructure is fixedly mounted on preceding association
It adjusts in seat main body, rectangular cavity is set in left front coordination seat understructure, the bulb of spiral adjustable supporting support leg is supported on left front association
In the rectangular cavity for adjusting seat understructure, bulb is contacted with upper surface in rectangular cavity；Right anterior branch seat includes spiral adjustable supports
Leg and right preceding coordination seat understructure, coordinate seat understructure lower part before right and set arch arc groove, the axis of arch arc groove
Line direction is along vehicle body longitudinal direction, and the arc radius in the cross section of arch arc groove and the spherical radius of bulb are identical, and spiral is adjustable
The bulb of supporting leg is placed in the arch arc groove for coordinating seat understructure before the right side, and bulb is bonded with arch arc groove；
Right rear support includes spiral adjustable supporting support leg and coordinates seat understructure after right, coordinates to set hemispherical sky in seat understructure after right
Chamber, the radius of hemi-spherical cavities and the radius of bulb are identical, and the bulb of spiral adjustable supporting support leg coordinates seat pedestal after being placed on the right side
In the hemi-spherical cavities of structure, and completely it is bonded with hemi-spherical cavities；Left back support includes spiral adjustable supporting support leg and left back
Coordinate seat understructure, left back coordination seat understructure divides into arch arc groove, and the axis direction of arch arc groove is along vehicle
Body is lateral, and the arc radius in the cross section of arch arc groove and the spherical radius of bulb are identical, the ball of spiral adjustable supporting support leg
Head is placed in the left back arch arc groove for coordinating seat understructure, and bulb is bonded with arch arc groove；Described is left front
Support, right anterior branch seat, left back support are identical with the spiral adjustable supporting support leg structure of right rear support, each spiral adjustable supporting support leg packet
Supporting support seat, spiral adjustable supporting dagger, bulb are included, supporting support seat is arranged in bottom, and supporting support seat is weldingly fixed on survey
On the horizontal steel plate being laid with to examination hall, supporting support seat top is connect with spiral adjustable supporting dagger, spiral adjustable supporting dagger top
It is fixedly connected with bulb.
2. the device of car test for static load according to claim 1, it is characterised in that: the supporting support seat top
It is connect by thread engaging structure with spiral adjustable supporting dagger.
3. the device of car test for static load according to claim 1, it is characterised in that: the bulb is sphere.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710610571.0A CN107588965B (en) | 2017-07-25 | 2017-07-25 | A kind of device of car test for static load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610571.0A CN107588965B (en) | 2017-07-25 | 2017-07-25 | A kind of device of car test for static load |
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| CN107588965A CN107588965A (en) | 2018-01-16 |
| CN107588965B true CN107588965B (en) | 2019-07-05 |
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| CN201710610571.0A Active CN107588965B (en) | 2017-07-25 | 2017-07-25 | A kind of device of car test for static load |
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| CN112067265A (en) * | 2020-08-19 | 2020-12-11 | 上海航天精密机械研究所 | Testing device suitable for static force of boundary capable of sliding in one direction |
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| CN101281085A (en) * | 2007-12-27 | 2008-10-08 | 奇瑞汽车股份有限公司 | Car white vehicle body structure static angular rigidity testing system and testing method thereof |
| CN101408470A (en) * | 2008-11-07 | 2009-04-15 | 湖南大学 | Combined type automobile white body dynamic and static state performance flexible integrated test system |
| CN201311345Y (en) * | 2008-11-07 | 2009-09-16 | 湖南大学 | Four-point support restrain device for vehicle body-in-white performance test |
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Effective date of registration: 20200730 Address after: 430000 Huagong science and Technology Park, Donghu Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN HUAZHONG NUMERICAL CONTROL Co.,Ltd. Address before: 430040 Hubei, Wuhan City, Hubei, Wuhan City, the East and West Lake District, golden silver lake grand road, No. 8 Wuhan living room, C hall two Patentee before: WUHAN INTELLIGENT CONTROL RESEARCH INSTITUTE Co.,Ltd. |