CN107588965A - 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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- CN107588965A CN107588965A CN201710610571.0A CN201710610571A CN107588965A CN 107588965 A CN107588965 A CN 107588965A CN 201710610571 A CN201710610571 A CN 201710610571A CN 107588965 A CN107588965 A CN 107588965A
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- seat
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- coordination
- adjustable supporting
- supporting support
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Abstract
The present invention relates to automotive field, and in particular to a kind of device of car test for static load.The coordination seat that each bearing of the invention includes the spiral adjustable supporting support leg of bottom and is engaged with chassis hard spot respectively, the structure that spiral adjustable supporting support leg is engaged by screw thread-like realizes upper backspin liter, bearing height flexible modulation as needed, four support leg structures are completely the same, interchangeable.The agent structure of four coordination seats is a point front and rear arrangement, two-by-two unanimously；But coordinate seat bottom for four to design by the free degree restrained condition of four strong points with the structure distribution that supporting leg coordinates.All it is a spheroid at the top of four spiral adjustable supporting support legs, coordinates seat substructure for four and designed respectively by free degree constraint requirements, when coordinating with top coordination seat, can guarantee that all rotational freedoms of release.The advantages that device of the present 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 field, and in particular to a kind of device of car test for static load.
Background technology
The device of existing car test for static load is main mainly to increasing support base at chassis hard spot and being welded and fixed
If to ensure vehicle body level condition, bearing is being installed, and after adjusting vehicle body level, chassis hard spot be in bearing and welded
It is connected together, is fixed by welding manner staff cultivation.Which can have bearing and vehicle body corrdinated adjustment level is relatively difficult,
Workload is big；And vehicle body welds together with support meanss, all frees degree of Complete Bind, with real vehicle operating condition fulcrum
The free degree is inconsistent；Simultaneously because bearing is non-adjustable, the mode such as be welded and fixed, also result in different operating modes in test need it is extra
Refitting bearing or the bearing for separately designing bending and twisting conditions, labor intensive physical resources and financial resources increase workload, and increase is multiple
Change the test error and uncertainty of support.
By weld with vehicle body fix support base, it is maximum the drawbacks of be, welding manner virtually additionally increases car
The rigidity of body chassis so that test result is less than normal, can not characterize the actual flexion torsion stiffness characteristics of vehicle body.It is welded and fixed in addition
Constrained all frees degree of six direction, it is completely inconsistent with vehicle actual moving process, also cause measurement result from
Accurately reflect the stiffness by itself of vehicle body.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of device of car test for static load.Apparatus of the present invention bottom
The spiral adjustable supporting support leg in portion can be with general exchange, and the structure engaged by screw thread-like realizes upper backspin liter, dress
Putting bearing height can be according to experiment demand flexible modulation, suitable for any test site and vehicle.Spheroid at the top of spiral support leg
After coordinating the fit structure cooperation of seat bottom, the free 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, and test is 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 bearing, 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 coordination seat main body is fixed with body forward structure to be measured
Left front bearing is installed in connection, preceding coordination seat main body left side；Installation right anterior branch seat 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 bearing 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：Described left front bearing includes spiral adjustable supporting support leg and left front coordination seat understructure, left front coordination seat
Understructure is coordinated in seat main body before being fixedly mounted on, and rectangular cavity, spiral adjustable supporting are set in left front coordination seat understructure
The bulb of support leg is supported in the rectangular cavity of left front coordination seat understructure, bulb and upper surface in rectangular cavity；It is right
Preceding bearing includes spiral adjustable supporting support leg and right preceding coordination seat understructure, coordinates seat understructure bottom 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 coordinates seat understructure after including spiral adjustable supporting support leg and the right side, coordinates after right
Hemi-spherical cavities are set in seat understructure, the radius of hemi-spherical cavities is identical with the radius of bulb, 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 bearing bag
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 horizontal along vehicle body, the arc radius in the cross section of arch arc groove and the spherical radius phase of bulb
Together, the bulb of spiral adjustable supporting support leg is placed in the arch arc groove of left back coordination seat understructure, and bulb is justified with arch
Arc groove is bonded；Described left front bearing, right anterior branch seat, the spiral adjustable supporting support leg structure phase of left back bearing 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 on bottom,
Supporting support seat is weldingly fixed on the horizontal steel plate of test site laying, and supporting support seat top connects with spiral adjustable supporting dagger
Connect, 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：Described supporting support seat top leads to
Thread engaging structure is crossed to be connected with spiral adjustable supporting dagger.
According to the device of car test for static load as described above, it is characterised in that：Described bulb is spheroid.
The beneficial effects of the invention are as follows：1st, spiral adjustable supporting support leg can realize backspin liter, and bearing height is adjustable, be suitable for
Different test site environment.2nd, after spheroid coordinates with coordination seat bottom fit structure at the top of spiral support leg, vehicle body can be realized
Free degree constraint at four fulcrums is consistent with actual condition, and test result truly reflects that the rigidity of test actual operating mode is special
Property.3rd, 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.4th, can various working use same device to test, it is simple and reliable, it is convenient and practical.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is the schematic diagram of the left front bearing of the present invention；
Fig. 3 is the schematic diagram of the right anterior branch seat of the present invention；
Fig. 4 is the schematic diagram of the right rear support of the present invention；
Fig. 5 is the schematic diagram of the left back bearing of the present invention.
Label represents respectively in figure：1-vehicle body, 2-left front bearing, 3-right anterior branch seat, 4-left back bearing, 5-it is right after
Bearing, 6-supporting support seat, 7-spiral adjustable supporting dagger, 8-bulb, 9-left front coordination seat understructure, 10-preceding coordination
Seat main body, 11-it is right before coordinate seat understructure, 12-it is right after coordinate seat understructure, 13-it is rear coordinate seat main body, 14-left
Coordinate seat understructure afterwards.
Embodiment
The present invention is described in detail with reference to embodiment and its accompanying drawing.Embodiment be premised on technical solution of the present invention under
Implemented, give detailed embodiment and process.But the protection domain of the claims in the present invention is not limited to following realities
Apply example.
Technical scheme is described further below in conjunction with the accompanying drawings：
As shown in Figures 1 to 5, the device of car test for static load of the invention includes left front bearing 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 coordination seat main body 10 and vehicle body to be measured
1 front portion is fixedly connected, and left front bearing 2 is installed in the preceding left side of coordination seat main body 10；The preceding right side installation right anterior branch seat of coordination seat main body 10
3；Coordinate seat main body 13 afterwards to be fixedly connected with the rear portion of vehicle body 1 to be measured, left back bearing 4, rear association are installed in the rear left side of seat main body 13 of coordinating
Adjust the right side of seat main body 13 that right rear support 5 is installed.
As shown in Figures 2 to 5, left front bearing 2 includes spiral adjustable supporting support leg and left front coordination seat understructure 9, left front
Coordinate to coordinate in seat main body 10 before seat understructure 9 is fixedly mounted on, rectangular cavity set in left front coordination seat understructure 9,
The bulb 8 of spiral adjustable supporting support leg is supported in the rectangular cavity of left front coordination seat understructure 9, in bulb 8 and rectangular cavity
Upper surface；Right anterior branch seat 3 includes spiral adjustable supporting support leg and right preceding coordination seat understructure 11, coordinates seat base knot before right
The bottom of structure 11 sets arch arc groove, and the axis direction of arch arc groove is longitudinal along vehicle body, the cross section of arch arc groove
Arc radius it is identical with the spherical radius of bulb 8, the bulb 8 of spiral adjustable supporting support leg coordinates seat understructure before being placed on the right side
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, coordinate 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 completely it is bonded with hemi-spherical cavities；Left back bearing 4 includes spiral adjustable supporting support leg and left back coordination seat understructure 14, left
Coordinate seat understructure 14 afterwards and divide into arch arc groove, the axis direction of arch arc groove is horizontal along vehicle body, arch circular arc
The arc radius in the cross section of groove is identical with 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 is front and rear to arrange, front and rear consistent two-by-two；But four are coordinated the structure distribution that seat bottom coordinates with spiral adjustable supporting support leg
Designed by the free degree restrained condition of four strong points.
As shown in Figures 2 to 5, the spiral of left front bearing 2 of the invention, right anterior branch seat 3, left back bearing 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
Support carrier base 6 is arranged on bottom, and supporting support seat 6 is weldingly fixed on the horizontal steel plate of test site laying, supporting support seat 6
Top is connected by thread engaging structure with spiral adjustable supporting dagger 7, and the top of spiral adjustable supporting dagger 7 is fixedly connected with bulb 8.This
Sample makes four spiral adjustable supporting support legs possess exchange versatility, and has coordinated the physical constraint shape at 4 hard spots of body understructure
State, it can guarantee that the device can be used for the test of vehicle body bending operating mode 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 bearing to realize upper backspin liter so that 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 of the invention four spiral adjustable supporting support legs is spheroid, so
In the tune seat base engagement with playing top, can guarantee that all rotational freedoms of release, it is ensured that the constraint of rotational freedom with
Actual condition it is consistent.
Test device general principle in this patent is：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, coordinate seat understructure 11 before right, coordinate seat understructure after right
12, rear to coordinate seat main body 13, left back coordination seat understructure 14 is respectively cooperating with being 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, which also coordinates, to be installed, and installation requirement is
Ensure 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 bottom adjustment supporting support seat 6, spiral adjustable supporting dagger 7, bulb 8 combine
Spiral adjustable supporting support leg structural system, ensure bulb 8 and left front coordination seat understructure 9, it is right before coordinate seat understructure 11,
Coordinating the good cooperation position of seat understructure 12, left back coordination seat understructure 14 behind the right side, (vertical geometric center is completely heavy
Close).Finally four supporting support seats 6 are weldingly fixed on the horizontal steel plate of test site laying, ensure whole test device
Be completely fixed with ground and axis vertically upward.Now test device system installation, now bulb 8 is with coordinating seat base knot
Structure ensures that the free degree constraint of each strong point after working good, due to being that bulb 8 supports, therefore the rotation at all fulcrums is certainly
All it is released by spending, while respective outer side edges different at four strong points also ensure that respective translational degree of freedom --- left front branch
Point constraint Z-direction, has decontroled X, Y-direction；Right anterior branch point constraint Y, Z-direction, decontroled X to；Left back fulcrum constraint X, Z-direction, have decontroled Y
To；Right rear fulcrum constraint X, Y, (wherein X represents vehicle body or so horizontal direction, Z to Z-direction to vehicle body front and back axis direction, Y-direction is represented
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, can be by test
Content installs the sensor (displacement transducer, 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 come simulation no-load, semi-load, reorganizes and outfit, fully loaded body quality operating mode.Vehicle body is curved
Bent operating mode 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
Bulb 8 is set to leave the left front coordination seat understructure 9 on top and right preceding coordination seat base knot with the spiral adjustable supporting dagger 7 before the right side
Structure 11, respectively record screw off the displacement of each measuring point of vehicle body and strain value before and after bulb 8, you can realize the left and right twisting conditions of vehicle body
Test.This test device is installed and used and convenient disassembly, and place applicability is good, structure and flexible modulation, and the constraint free degree is more
Meet the actual free degree of travel condition of vehicle, repeat and utilize, can more realize the All-in-One test of multi-state, it is practical.
It should be noted that the peace of the parts such as " upper and lower ", " forward and backward ", " left and right " described in apparatus of the present invention system
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 do nonessential suitably adjustment as needed and change completely.
Apparatus of the present invention system do not address part be applied to 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 bearing, right anterior branch seat, left back bearing, right rear support, preceding coordination
Seat main body and rear coordination seat main body, wherein preceding coordination seat main body is fixedly connected with body forward structure to be measured, on the left of preceding coordination seat main body
Left front bearing is installed；Installation right anterior branch seat 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 bearing 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：A described left side
Preceding bearing includes spiral adjustable supporting support leg and left front coordination seat understructure, and left front coordination seat understructure is fixedly mounted on preceding association
Adjust in seat main body, set rectangular cavity 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 and upper surface in rectangular cavity；Right anterior branch seat includes spiral adjustable supports
Leg and right preceding coordination seat understructure, coordinate seat understructure bottom before right and set arch arc groove, the axle of arch arc groove
Line direction is along vehicle body longitudinal direction, and the arc radius in the cross section of arch arc groove is identical with the spherical radius of bulb, 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 coordinates seat understructure after including spiral adjustable supporting support leg and the right side, coordinates to set hemispherical sky in seat understructure after right
Chamber, the radius of hemi-spherical cavities is identical with the radius of bulb, and the bulb of spiral adjustable supporting support leg is placed on coordination seat base behind the right side
In the hemi-spherical cavities of structure, and completely it is bonded with hemi-spherical cavities；Left back bearing 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 car
Body is horizontal, and the arc radius in the cross section of arch arc groove is identical with the spherical radius of bulb, the ball of spiral adjustable supporting support leg
Head is placed in the arch arc groove of left back coordination seat understructure, and bulb is bonded with arch arc groove；Described is left front
Bearing, right anterior branch seat, left back bearing are identical with the spiral adjustable supporting support leg structure of right rear support, each spiral adjustable supporting support leg bag
Supporting support seat, spiral adjustable supporting dagger, bulb are included, supporting support seat is arranged on bottom, and supporting support seat is weldingly fixed on survey
On the horizontal steel plate laid to examination hall, supporting support seat top is connected 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：Described supporting support seat top
It is connected 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：Described bulb is spheroid.
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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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| 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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| Publication Number | Publication Date |
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| CN107588965A true CN107588965A (en) | 2018-01-16 |
| CN107588965B CN107588965B (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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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| CN107588965B (en) | 2019-07-05 |
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