CN107782500A - Automobile center mass measuring device and measuring method - Google Patents
Automobile center mass measuring device and measuring method Download PDFInfo
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- CN107782500A CN107782500A CN201610728717.7A CN201610728717A CN107782500A CN 107782500 A CN107782500 A CN 107782500A CN 201610728717 A CN201610728717 A CN 201610728717A CN 107782500 A CN107782500 A CN 107782500A
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- measuring device
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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
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/12—Static balancing; Determining position of centre of gravity
- G01M1/122—Determining position of centre of gravity
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- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention relates to measurement apparatus technical field, particularly automobile center mass measuring device and measuring method.Automobile center mass measuring device includes：Square groove (2) and title (3), (3) are referred to as square, and internal positioned at square groove (2), the upper surface of title (3) is concordant with level ground.Beneficial effects of the present invention are：There is small volume to be not take up solid space substantially, can be easy to realize device fabrication by this scheme without particular place, cheap, factory for the present embodiment.
Description
Technical field
The present invention relates to measurement apparatus technical field, particularly automobile center mass measuring device and measuring method.
Background technology
With flourishing for domestic automobile industry, the progress of automotive engineering is also to advance by leaps and bounds.Automobile is again not only
Only it is a delivery vehicle, but a mobile family.Each automobile production enterprise is also improving constantly the research and development ability of oneself, carries
The comfortableness of high vehicle, handling, security etc., and the barycenter of automobile exactly influences the key factor of above-mentioned performance.But mesh
The centroid measurement equipment of preceding in the market is excessively huge, complicated, expensive, and most automobile manufacturing enterprises survey barycenter
The third company for measuring work outsourcing is carried out, and convenience declines.
Measuring apparatus used in most automobile centroid measurements is vehicle complete vehicle quality center of mass parameter test board, by truck crane
Act the measurement for being placed into and barycenter parameter being automatically performed on testboard.But due to vehicle complete vehicle quality center of mass parameter test board
Complicated, expensive, testing, which needs secondary lever instrument to lift vehicle, is placed on testboard, while also needs to special
Space for test equipment use.Above mentioned problem constrains automobile production enterprise configuration centroid measurement equipment.The present invention program carries
One kind is gone out and has not needed independent place space, it is not necessary to lifting equipment, cheap, the simple method of method of testing.Automobile is given birth to
Production enterprise can easily configure.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, the invention provides it is a kind of it is simple in construction, cost is cheap,
Measure the centroid measurement equipment that measurement accuracy is not less than prior art.
The present invention solves its technical problem and takes following technical scheme to realize：Automobile center mass measuring device, comprising：Side
Shape groove and title, it is referred to as square, inside square groove, it is concordant with level ground to be much of surface.
Preferably, the title includes bottom plate, upper cover plate and four pressure sensors；Pressure sensor is fixedly connected on bottom
On plate, four pressure sensors are mutually distributed in quadrangle；Upper cover plate is positioned on pressure sensor, upper cover plate and level ground
Keeping parallelism.
Preferably, the bottom of square groove carries four adjustment bolt holes, and four adjustment bolts are located at four adjustment bolt holes
In；Four adjusting nuts screw in four adjustment bolts respectively, will be put into porose bottom plate the bottom surface that makes bottom plate in square groove with
The top surface contact of adjusting nut, makes the top surface of bottom plate keep water by adjusting height and position of the adjusting nut in adjustment bolt
It is flat；Height of the upper surface of bottom plate apart from level ground is equal to thickness of the height plus cover plate of pressure sensor；Bottom plate with
Placing concrete between square groove, clamp nut is screwed in into adjustment bolt, and bottom plate is compressed.
Preferably, the size of the square groove is 40cm*40cm*10cm.
Preferably, the automobile center mass measuring device includes guiding slope and increases block, and guiding slope is connected with increasing block；Increase
High block is located at the side of deserving to be called.
The method that the present invention goes back protection automobile barycenter, is comprised the steps of：The near front wheel of vehicle (7) is stopped at into power
Profit is required on the automobile center mass measuring device described in 1, measures the near front wheel weight M1；The left rear wheel of vehicle (7) is stopped at into power
Profit is required on the automobile center mass measuring device described in 1, measures left rear wheel weight M3；The off-front wheel of vehicle (7) is stopped at into power
Profit is required on the automobile center mass measuring device described in 1, measures off-front wheel weight M2；The off hind wheel of vehicle (7) is stopped at into power
Profit is required on the automobile center mass measuring device described in 1, measures off hind wheel weight M4；According to following equation：
∑MX=(M1+M2)*(X+L1/2)-(M3+M4)*(-X+L1/ 2)=0；
X=2* (M3+M4-M1-M2)/L1*(M1+M2+M3+M4)；
∑MY=(M1+M3)*(Y+L2/2)-(M2+M4)*(-Y+L2/ 2)=0；
Y=2* (M2+M4-M1-M3)/L2*(M1+M2+M3+M4)；
Try to achieve centre of gravity of vehicle (X, Y)；Wherein L1For wheelbase, L2For wheelspan.
Preferably, the method for the automobile barycenter comprises the steps of：Vehicle the near front wheel is stopped at described in claim 5
Automobile center mass measuring device on, measure the weight M after the near front wheel liftingz1；Vehicle off-front wheel is stopped at into claim 5 institute
On the automobile center mass measuring device stated, the weight M after off-front wheel lifting is measuredz2；Calculated according to following equation：
X=2* (M3+M4-M1-M2)/L1*(M1+M2+M3+M4)；
Try to achieve vehicle center of gravity Z values；Wherein Δ h is to increase tile height.
The advantages and positive effects of the present invention are：There is the present embodiment small volume to be not take up solid space substantially, need not
Particular place, cheap, factory can be easy to realize device fabrication by this scheme.
Brief description of the drawings
Fig. 1 is top view of the present invention；
Fig. 2 is view of the present invention along A-A directions；
Fig. 3 is front view of the present invention；
The horizontal the near front wheels of Fig. 4 are weighed；
The horizontal left rear wheels of Fig. 5 are weighed；
The horizontal off-front wheels of Fig. 6 are weighed；
The horizontal off hind wheels of Fig. 7 are weighed；
Fig. 8 increases rear the near front wheel and weighed；
Fig. 9 increases rear off-front wheel and weighed.
Description of reference numerals：
1- level grounds, 2- square grooves, 3- claim, 4- upper cover plates, 5- clamp nuts, 6- pressure sensors, 7- vehicles, 8- bottoms
Plate, 9- concrete, 10- adjustment bolts, 11- adjustment bolts hole, 12- adjusting nuts, 13- guiding slope, 14- increase block.
Embodiment
Below in conjunction with the accompanying drawings, by specific embodiment, the invention will be further described.Following examples are descriptive
, it is not limited, it is impossible to which protection scope of the present invention is limited with this.
As shown in Fig. 1,2, claim in 3 square grooves 2 being arranged on level ground 1, the size of square groove 2 is 40cm*
40cm*10cm, and ensure to claim 3 upper surface with level ground 1 on a horizontal plane.
As shown in figure 3, digging square groove 2 on level ground 1, and four adjustment bolt holes 11 are bored in the bottom of square groove 2,
Four adjustment bolts 10 are pressed into adjustment bolt hole 11 and ensure that its is firm.Four adjusting nuts 12 are screwed in into adjustment bolt respectively
10, the bottom plate 8 with four holes is put into square groove 2 and ensures that the bottom surface of bottom plate 8 contacts with the top surface of adjusting nut 12, is led to
Height and position of four adjusting nuts 12 of adjustment in adjustment bolt 10 is crossed so that the top surface keep level of bottom plate 8, and ensures bottom
Height of the upper surface of plate 8 apart from level ground 1 is equal to thickness of the height plus cover plate 4 of pressure sensor 6.Bottom plate 8 with
Placing concrete 9 between square groove 2, four clamp nuts 5 are screwed in into adjustment bolt 10 respectively, and tightly compressed bottom plate 8, with
Ensure that Volume Changes when bottom plate 8 is not solidified by concrete 9 are influenceed its horizontal level.By four pressure after the solidification of concrete 9
Sensor 6 is fixed on bottom plate 8, and cover plate 4 is placed on four pressure sensors 6.
Specific metering system：As shown in figure 4, the near front wheel of vehicle 7 is stopped on title 3, the near front wheel weight is measured.Such as
Shown in Fig. 5, the left rear wheel of vehicle 7 is stopped on title 3, measures left rear wheel weight.As shown in fig. 6, the off-front wheel by vehicle 7
Stop on title 3, measure off-front wheel weight.As shown in fig. 7, the off hind wheel of vehicle 7 is stopped on title 3, after measuring the right side
Take turns weight.It is by torque equilibrium equation principle ∑ Mx=0；∑ My=0, and wheelbase wheelspan can try to achieve vehicle center of gravity X and Y value.
Circular is as follows：
∑MX=(M1+M2)*(X+L1/2)-(M3+M4)*(-X+L1/ 2)=0；
X=2* (M3+M4-M1-M2)/L1*(M1+M2+M3+M4)；
∑MY=(M1+M3)*(Y+L2/2)-(M2+M4)*(-Y+L2/ 2)=0；
Y=2* (M2+M4-M1-M3)/L2*(M1+M2+M3+M4)；
In above formula, M1--- left front wheel measurement quality；M2--- off-front wheel measures quality；M3--- left back wheel measurement matter
Amount；M4--- off hind wheel measures quality；L1--- wheelbase；L2--- wheelspan.
It is individually positioned in as shown in figure 8,2 guiding slopes 13 and two are increased into block 14 on title 3 and on level ground 1, will
Vehicle the near front wheel is stopped on title 3, measures the weight after the near front wheel lifting.
It is individually positioned in as shown in figure 9,2 guiding slopes 13 and two are increased into block 14 on title 3 and on level ground 1, will
Vehicle off-front wheel is stopped on title 3, measures the weight after off-front wheel lifting.Now by the way that automobile front-axle is raised into Δ h, Δ h
As increase the height of block.It is according to vehicle's center of gravity height equation
X=2* (M3+M4-M1-M2)/L1*(M1+M2+M3+M4)；
Δ h --- increase tile height；Mz1--- increase rear the near front wheel measurement quality；Mz2--- increase rear off-front wheel measurement
Quality；M1--- left front wheel measurement quality；M2--- off-front wheel measures quality；M3--- left back wheel measurement quality；M4--- after right
Wheel measurement quality；L1--- wheelbase；L2--- wheelspan；Vehicle center of gravity Z values can be tried to achieve.
Vehicle complete vehicle centroid measurement can be achieved in summary equipment embodiment and actual measurement method.
Claims (7)
1. automobile center mass measuring device, it is characterised in that include：Square groove (2) and title (3), (3) are referred to as square, positioned at square
Groove (2) is internal, claims the upper surface of (3) concordant with level ground.
2. automobile center mass measuring device according to claim 1, it is characterised in that it is described claim (3) include bottom plate (8), on
Cover plate (4) and four pressure sensors (6)；Pressure sensor (6) is fixedly connected on bottom plate (8), four pressure sensors
(6) mutually it is distributed in quadrangle；Upper cover plate (4) is positioned on pressure sensor (6), and upper cover plate (4) keeps flat with level ground
OK.
3. automobile center mass measuring device according to claim 2, it is characterised in that the bottom of square groove (2) carries four
Adjustment bolt hole (11), four adjustment bolts (10) are in four adjustment bolt holes (11)；Four adjusting nuts (12) are respectively
Four adjustment bolts (10) are screwed in, the bottom surface for making bottom plate (8) in square groove (2) and adjustment spiral shell will be put into porose bottom plate (8)
The top surface contact of female (12), makes the top of bottom plate (8) by adjusting height and position of the adjusting nut (12) in adjustment bolt (10)
Face keep level；The height that height of the upper surface of bottom plate (8) apart from level ground is equal to pressure sensor (6) adds cover plate
(4) thickness；The placing concrete (9) between bottom plate (8) and square groove (2), clamp nut (5) is screwed in into adjustment bolt
(10), and by bottom plate (8) compress.
4. automobile center mass measuring device according to claim 1, it is characterised in that the size of the square groove (2) is
40cm*40cm*10cm。
5. automobile center mass measuring device according to claim 1, it is characterised in that the automobile center mass measuring device includes
Guide slope (13) and increase block (14), guiding slope (13) is connected with increasing block (14)；Increase block (14) above title (3).
6. measure the method for automobile barycenter, it is characterised in that comprise the steps of：The near front wheel of vehicle (7) is stopped at into right
It is required that on automobile center mass measuring device described in 1, the near front wheel weight M is measured1；The left rear wheel of vehicle (7) is stopped at into right
It is required that on automobile center mass measuring device described in 1, left rear wheel weight M is measured3；The off-front wheel of vehicle (7) is stopped at into right
It is required that on automobile center mass measuring device described in 1, off-front wheel weight M is measured2；The off hind wheel of vehicle (7) is stopped at into right
It is required that on automobile center mass measuring device described in 1, off hind wheel weight M is measured4；According to following equation：
∑MX=(M1+M2)*(X+L1/2)-(M3+M4)*(-X+L1/ 2)=0；
X=2* (M3+M4-M1-M2)/L1*(M1+M2+M3+M4)；
∑MY=(M1+M3)*(Y+L2/2)-(M2+M4)*(-Y+L2/ 2)=0；
Y=2* (M2+M4-M1-M3)/L2*(M1+M2+M3+M4)；
Try to achieve centre of gravity of vehicle (X, Y)；Wherein L1For wheelbase, L2For wheelspan.
7. the method for measurement automobile barycenter according to claim 6, it is characterised in that comprise the steps of：Vehicle is left
Front-wheel is stopped on the automobile center mass measuring device described in claim 5, measures the weight M after the near front wheel liftingz1；By vehicle
Off-front wheel is stopped on the automobile center mass measuring device described in claim 5, measures the weight M after off-front wheel liftingz2；According to
Following equation calculates：
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X=2* (M3+M4-M1-M2)/L1*(M1+M2+M3+M4)；
Try to achieve vehicle center of gravity Z values；Wherein Δ h is to increase tile height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728717.7A CN107782500A (en) | 2016-08-25 | 2016-08-25 | Automobile center mass measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728717.7A CN107782500A (en) | 2016-08-25 | 2016-08-25 | Automobile center mass measuring device and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107782500A true CN107782500A (en) | 2018-03-09 |
Family
ID=61438918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610728717.7A Pending CN107782500A (en) | 2016-08-25 | 2016-08-25 | Automobile center mass measuring device and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107782500A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186618A (en) * | 2019-06-28 | 2019-08-30 | 长春理工大学 | A kind of automobile mass center test fixture |
| CN111076946A (en) * | 2020-01-02 | 2020-04-28 | 中国科学院苏州生物医学工程技术研究所 | Method and device for automatically measuring wheel track, wheel width, wheel base, pose and mass center of vehicle |
| CN112393845A (en) * | 2020-11-30 | 2021-02-23 | 奇瑞汽车股份有限公司 | Vehicle gravity center height obtaining method and device |
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| CN105928657A (en) * | 2016-05-27 | 2016-09-07 | 大连楼兰科技股份有限公司 | Vehicle centroid position measuring device and method |
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Patent Citations (10)
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|---|---|---|---|---|
| JPH08170935A (en) * | 1994-12-19 | 1996-07-02 | Hitachi Ltd | Device and method for measuring center of gravity of vehicle body |
| KR20020038124A (en) * | 2000-11-16 | 2002-05-23 | 류정열 | Vehicle barycenter measuring device |
| CN101413840A (en) * | 2007-12-27 | 2009-04-22 | 奇瑞汽车股份有限公司 | Device and method for measuring object mass center |
| CN201497612U (en) * | 2009-08-22 | 2010-06-02 | 襄樊达安汽车检测中心 | Mass center position measuring device for power assembly of vehicle |
| CN201885854U (en) * | 2010-12-16 | 2011-06-29 | 襄樊达安汽车检测中心 | Passenger vehicle mass center testing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186618A (en) * | 2019-06-28 | 2019-08-30 | 长春理工大学 | A kind of automobile mass center test fixture |
| CN110186618B (en) * | 2019-06-28 | 2020-11-03 | 长春理工大学 | Automobile mass center testing and positioning device |
| CN111076946A (en) * | 2020-01-02 | 2020-04-28 | 中国科学院苏州生物医学工程技术研究所 | Method and device for automatically measuring wheel track, wheel width, wheel base, pose and mass center of vehicle |
| CN112393845A (en) * | 2020-11-30 | 2021-02-23 | 奇瑞汽车股份有限公司 | Vehicle gravity center height obtaining method and device |
| CN112393845B (en) * | 2020-11-30 | 2021-12-28 | 奇瑞汽车股份有限公司 | Vehicle gravity center height obtaining method and device |
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Application publication date: 20180309 |