CN106153255A - Car load centroid detection platform - Google Patents
Car load centroid detection platform Download PDFInfo
- Publication number
- CN106153255A CN106153255A CN201610804719.XA CN201610804719A CN106153255A CN 106153255 A CN106153255 A CN 106153255A CN 201610804719 A CN201610804719 A CN 201610804719A CN 106153255 A CN106153255 A CN 106153255A
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- weighing unit
- plate
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- car load
- weighing
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/025—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles wheel-load scales
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of car load centroid detection platform.Described car load centroid detection platform includes: framework, multiple weighing unit and multiple elevating ram, and framework includes passage and is positioned at two bracing frames of the passage left and right sides in being located at trench;Each two weighing unit is one group, and often two weighing units in group weighing unit are the most liftably located on two bracing frames, and each weighing unit is adapted to support a wheel of car load to detect the wheel load of this wheel;Multiple elevating rams are connected correspondingly with multiple weighing units, and each elevating ram all can lift weighing unit accordingly independently.Car load centroid detection platform according to the present invention, can realize vehicle centroid and the detection of vehicle frame twisted state simultaneously.
Description
Technical field
The present invention relates to technical field of vehicle, reverse detection platform in particular to a kind of car load barycenter and car load.
Background technology
At present, the car load centroid detection of vehicle and front wheel angle and chassis torsion test can be at different experimental tests
Carry out on platform, but heavy truck vehicle is big, at different experimental test platforms due to the gross mass after self vehicle frame length, vehicle body height, loading
Carry out centroid measurement and vehicle frame torsional moment test can increase the operation frequency of test, experimentation cost increases, simultaneously each testing stand
Integration test result is difficult to accurately reflect the truthful data of vehicle.
Summary of the invention
It is contemplated that solve one of above-mentioned technical problem of the prior art the most to a certain extent.To this end, this
Bright purpose is to propose a kind of car load centroid detection platform that can simultaneously detect barycenter and vehicle frame moment of torsion.
Car load centroid detection platform according to the present invention, including: framework, described framework includes passage and position in being located at trench
Two bracing frames in the described passage left and right sides;Multiple weighing units, weighing unit described in each two is one group, often in group weighing unit
Two described weighing units be the most liftably located on two bracing frames, and each described weighing unit be adapted to support
One wheel of car load is to detect the wheel load of this wheel;Multiple elevating rams, multiple elevating rams and multiple weighing unit one a pair
Should be connected on ground, and each described elevating ram all can lift the most described weighing unit independently.
Car load centroid detection platform according to the present invention, by arranging multiple weighing platform and corresponding multiple act
Oil-lifting jar, and utilize individually lifting or the combined artificial lift of each weighing unit, it is achieved simultaneously to vehicle wheel load and the measurement of vehicle frame moment of torsion.
In some preferred embodiments of the present invention, before and after car load on direction, located anteriorly least one set is weighed
Platform is provided with the corner measuring apparatus for detecting wheel steering angle.
In some preferred embodiments of the present invention, the described weighing unit in described least one set weighing unit includes carriage
Frame and rotary support, the most described support frame of described rotary support is rotatable, described wheel supporting on described rotary support,
Described corner measuring apparatus is for measuring the angle that described rotary support rotates relative to described support frame.
In some preferred embodiments of the present invention, each described weighing unit all include weighing panel, LOAD CELLS and
Pedestal, described LOAD CELLS is located at described pedestal and described weighs between panel, described in panel of weighing for supporting wheel, institute
It is multiple for stating LOAD CELLS, and multiple described LOAD CELLSs are around the circumferentially-spaced layout of described pedestal.
Preferably, the weighing capacity of each described weighing unit is 15 tons.
In some preferred embodiments of the present invention, the direction from front to back along car load sets gradually first group to the 4th group
Weighing unit, wherein first group of weighing unit and second group of weighing unit distance in the longitudinal direction be L1,1800mm≤L1≤
2200mm, the 3rd group of weighing unit and the 4th group of weighing unit as an entirety can the most described second group of weighing unit along the longitudinal direction
Mobile, described 3rd group of weighing unit and described second group of weighing platform distance in the longitudinal direction be L2,2200mm≤L2≤
5250mm, described 3rd group of weighing unit and the 4th group of weighing unit distance in the longitudinal direction be L3,1250mm≤L3≤
1450mm。
In some preferred embodiments of the present invention, two the first risers that support frame as described above includes cover plate, is oppositely arranged,
Described first riser is vertically arranged and extends along the longitudinal direction, and each described first riser all includes the first riser body, vertical
Described first riser body is to the first plate extended away from described first riser body direction and the second plate, and described first plate is located at
The bottom of described first riser body, described second plate is positioned at above described first plate, and the two ends, left and right of described cover plate are propped up respectively
Support is on two the second plates.
Preferably, support frame as described above also includes that two ends, left and right are separately fixed at second on two described first risers and stand
Plate, described second riser extends in left-right direction, each described second riser all include the second riser body, the most described second
Riser body is to the 3rd plate extended away from described second riser body direction and the 4th plate, and described 3rd plate is located at described second
The bottom of riser body, described 4th plate is positioned at above described 3rd plate, and the front end of described cover plate or rear end are supported on described
On four plates, on the steel plate that described first plate is pre-buried in being fixed on described trench together with described 3rd plate.
Preferably, the upper end of described first riser is higher than the upper surface of described cover plate.
In some preferred embodiments of the present invention, described car load centroid detection platform also includes for detecting described lifting
The displacement detector of oil cylinder displacement.
In some preferred embodiments of the present invention, the stroke of described elevating ram is 0-1400mm, and described lifting oil
Cylinder is positively retained at any position of stroke, and the lifting speed of described elevating ram is 3mm/s-5mm/s.
Accompanying drawing explanation
Fig. 1 is the layout of car load centroid detection platform according to embodiments of the present invention;
Fig. 2 is the structural representation of the panel of weighing of weighing unit in Fig. 1;
Fig. 3 is the structural representation of weighing unit pedestal;
Fig. 4 is the structural representation of upper support frame;
Fig. 5 is the structural representation of lower support frame;
Fig. 6 is the side view of car load centroid detection platform according to embodiments of the present invention;
Fig. 7 is the structural representation of the first riser;
Fig. 8 is the schematic cross-section of the first riser;
Fig. 9 is the structural representation of the second riser;
Figure 10 is the schematic cross-section of the second riser;
Figure 11 is the layout of elevating ram.
Reference:
Car load centroid detection platform 100, framework 1, passage 11, bracing frame 12, cover plate 121, the first riser 122, first stands
Plate body 1221, the first plate 1222, the second plate 1223, the first installing hole 1224, the second riser 123, the second riser body 1231,
3rd plate 1232, the 4th plate 1233, side fixed plate 1234, the second installing hole 1235,
Weighing unit 2, panel 21 of weighing, the first outer support beam 211, the first inner support beam 212, the first drag link bearing 213, square
Shape through hole 214, the first circular base slab 215, support frame 22, upper support frame 221, lower support frame 222, manhole
223, pedestal 23, the second outer support beam 231, the second inner support beam 232, the second drag link bearing 233, the second circular base slab 234,
Wall 235, rotary support 24, elevating ram 3, guider 4, threaded mounting hole 5.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the instruction such as " outward "
Orientation or position relationship are based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplification is retouched
State rather than indicate or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral;Can be that machinery connects
Connect, it is also possible to be to electrically connect maybe can communicate with one another;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can
To be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art,
Above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Referring to Fig. 1-Figure 11, car load centroid detection platform 100 according to embodiments of the present invention is described.Such as Fig. 1-Figure 11
Shown in, car load centroid detection platform 100 according to embodiments of the present invention includes: framework 1, multiple weighing unit 2 and multiple lifting oil
Cylinder 3.
Framework 1 is located in trench, and includes passage 11 and be positioned at two bracing frames 12 of passage 11 left and right sides, preferably
Ground, framework 1 is concordant with ground, is so conducive to vehicle smoothly to sail testing stand into, and is stopped at correct test position, arranges logical
Road 11 can facilitate testing crew to check vehicle chassis, prevents the oil leakage phenomenon that leaks.
Each two weighing unit 2 is one group, and often two weighing units 2 in group weighing unit are the most liftably located at two
On individual bracing frame 12, and each weighing unit 2 is adapted to support a wheel of car load to detect the wheel load of this wheel.
Multiple elevating rams 3 are connected correspondingly with multiple weighing units 2, and each elevating ram 3 all can rise independently
Weighing unit 2 accordingly drop.
It is understood that when needs carry out wheel load test, each weighing unit 2 is in the effect of elevating ram 3 accordingly
The most individually, lifting independently, complete the function of weighing to corresponding wheel, when needs carry out chassis torsion test, each is weighed
Can be optionally combined between platform 2, and synchronous lifting under the effect of elevating ram 3 accordingly, complete the test to vehicle frame distortion.
Car load centroid detection platform 100 according to embodiments of the present invention, by arranging multiple weighing unit 2 and corresponding therewith
Multiple elevating rams 3, and utilize individually lifting or the combined artificial lift of each weighing unit 2, thus can realize vehicle wheel load simultaneously
And the measurement of vehicle frame moment of torsion.
In certain embodiments, before and after car load on direction, located anteriorly least one set weighing unit be provided with for
The corner measuring apparatus of detection wheel steering angle, i.e. corner measuring apparatus can measure the steering angle of wheel, alternatively, located anteriorly
First group of weighing unit be provided with corner measuring apparatus, or second group of located anteriorly weighing unit is provided with outer corner measurement dress
Put, or be equipped with corner measuring apparatus on two groups of located anteriorly weighing units, the measurement number of the most multiple corner measuring apparatus
According to comprehensively make measurement more accurate.
Further, the weighing unit 2 in the above-mentioned one group of weighing unit being provided with corner measuring apparatus can include support frame
22 and rotary support 24, rotary support 24 relative support framework 22 is rotatable, wheel supporting on rotary support 24, outer corner measurement
Device is for measuring the angle that rotary support 24 relative support framework 22 rotates.
Specifically, rotary support 24 can be disk, and diameter can be 500mm, and specified axle load is 15 tons, the bottom of disk
Can arrange rotational structure, rotational structure can be cylindrical and inside is provided with ball, and rotational structure can be with disc rotary, favorably
Ground, rotational structure can be connected with high-precision encoder, drives encoder to rotate, by encoder number during disc rotary
According to, and it is transferred to computer by after hardware handles.
It is to say, when the wheel of test vehicle is parked on weighing unit 2, by wheel steering, bearing 24 is rotated
Rotating, thus drive the rotational structure of bottom to rotate, and then drive encoder to rotate, the data on encoder are at hardware system
Being sent to computer after reason, display, on exterior display screen, completes the measurement of the steering angle of wheel.
In certain embodiments, the weighing capacity of each weighing unit 2 is 15 tons, and each weighing unit 2 all includes weighing
Panel 21, LOAD CELLS and pedestal 23, LOAD CELLS is located at pedestal 23 and weighs between panel 21, weigh panel 21 for
Supporting wheel, LOAD CELLS is multiple, and multiple LOAD CELLSs are around the circumferentially-spaced layout of pedestal 23.
Pedestal 23 is connected with elevating ram 3, and is driven the rise and fall of weighing unit 2 by the landing of elevating ram 3, as
Shown in Figure 11, pedestal 23 bottom welding has bearing, and elevating ram 3 is connected as one with weighing unit 2 by bolt by bearing, lifting
Fix with ground bottom oil cylinder 3 and be connected, and elevating ram 3 both sides are separately provided for the guider 4 of guiding, two guiding
Device 4 is symmetrically distributed in the both sides of elevating ram 3, so can prevent the generation of unbalance loading.
Advantageously, the stroke of elevating ram 3 can be 0-1400mm, and elevating ram 3 is positively retained at any bit of stroke
Put place, and not run-off the straight, thus can meet the measurement of vehicle moment of torsion at different conditions, the simultaneously act of elevating ram 3
Lifting speed can be 3mm/s-5mm/s, and the lifting of such elevating ram 3 is steady, thus can improve car load centroid detection platform 100
Certainty of measurement.
Specifically, as in figure 2 it is shown, panel 21 of weighing has matrix pattern structure, and the first outer support beam 211 and first is included
Inner support beam 212, the first outer support beam 211 can be multiple, and the first outer support beam 211 is rectangular square tube, and multiple rectangle side
Sealing of tube forms square shape structure, and the first inner support beam 212 can be two, and two the first inner support beams 212 are by rectangular square tube
The most transversely form internal cruciform structure with longitudinal measure, thus can improve the strength and stiffness of panel 21 of weighing.
As it is shown on figure 3, pedestal 23 has the substrate with the consistent cross section of panel 21 of weighing and is respectively provided at the vertical of substrate both sides
Wall 235, and the area of the area of substrate and panel 21 of weighing is substantially the same, substrate can also be welded by rectangular square tube.Vertical
Wall 235 upwardly extends from the both sides of the edge of substrate, and vertical substrate is arranged.
Preferably, the inner surface of one of them the first outer support beam 211 of panel 21 of weighing is provided with the first drag link bearing
213, the first drag link bearing 213 can be two, and lays respectively at the both sides of the first inner support beam 212, correspondingly, on pedestal 23
The wall 235 relative with this first outer support beam 211 is provided with the second drag link bearing 233, the second drag link bearing 233 be two and
Corresponding with the first drag link bearing 213 on the first outer support beam 211 respectively, meanwhile, with the second of pedestal 23 on panel 21 of weighing
Drag link bearing 233 position accordingly is provided with two rectangular through-hole 214, and so, one end of pull bar is fixed on panel of weighing
On first drag link bearing 213 of 21, the other end is fixed on the second drag link bearing 233 of pedestal 23 through rectangular through-hole 214, from
And panel 21 and pedestal 23 in the lateral direction fixing that realize weighing is connected.
Similarly, the bottom of the first inner support beam 212 of panel 21 of weighing can also be provided with the first drag link bearing 213, base
The upper surface of the second inner support beam 232 of seat 23 can be provided with the second drag link bearing 233, and the second drag link bearing 233 draws with first
Rod bearing 213 position is relative, and pull bar two ends are separately fixed on the first drag link bearing 213 and the second drag link bearing 233, thus real
Panel 21 and pedestal 23 in the vertical direction fixing of now weighing is connected.
So, achieved a fixed connection with pedestal 23 by the pull bar of the both direction panel 21 that makes to weigh, title can be made simultaneously
The weight panel 21 relative position on pedestal 23 is stable, and the panel 21 that prevents from weighing slides on pedestal 23.
Preferably, pull bar two ends are provided with external screw thread, and two ends hand of spiral is contrary, with drag link bearing (the first drag link bearing
213 and second drag link bearing 233) female thread be mutually matched, pull bar is arranged to rotatably regulate weigh panel 21 and pedestal 23
Between gap, be thus easy to regulate the panel 21 relative position with pedestal 23 of weighing, meanwhile, pull bar is in non-tight death situation state,
The panel 21 that so can make to weigh contacts with LOAD CELLS, more closely so that the data recorded are more accurate.
Advantageously, weighing unit 2 can also include support frame 22, as shown in Figure 4 and Figure 5, the box shaped knot of support frame 22
Structure, and include being equipped with circle in support frame 221 and lower support frame 222, upper support frame 221 and lower support frame 222
Shape through hole 223, two manholes about 223 relatively and are mutually communicated, and upper manhole 223 is used for installing disk, and lower circle is led to
Hole 223 is used for installing rotational structure, and panel 21 of weighing can be arranged between support frame 221 and lower support frame 222, turns
Angle measuring device is fixedly mounted on panel 21 center of weighing, and disc surfaces keeps level with support frame 22 surface.
Further, the sidewall of support frame 22, the first outer support beam 211 of panel 21 of weighing, pedestal 23 second outside
It is equipped with multiple threaded mounting hole 5 spaced apart in support beam 231, and support frame 22, weighs on panel 21 and pedestal 23
Threaded mounting hole 5 is the most relative, for three being connected to one through bolt.
Preferably, weigh and be respectively welded the first circular base slab 215 and second on four angles of panel 21 and pedestal 23
Circular base slab 234, the top and bottom of LOAD CELLS bear against in the first circular base slab 215 and the second circular support
On plate 234, advantageously, the first circular base slab 215 can be provided with the female part contacted with LOAD CELLS termination, make to weigh
Sensor completely attaches to panel 21 of weighing, so that measurement data is accurate.
So, each weighing unit 2 arranges four LOAD CELLSs, when reaching certain specific tonnage (such as 12~18 tons)
Time, four LOAD CELLSs share the whole load of weighing unit 2, and the range of the most each LOAD CELLS arranges and can reduce,
Precision is higher, and the weighing data so recorded is more accurate, and error is less.
Specifically, when vehicle is on weighing unit 2, by the four of LOAD CELLS contact points, LOAD CELLS obtains
The corresponding signal of telecommunication, the weighing data of vehicle, after hardware system processes, is shown on external display screen by the signal of telecommunication, thus complete
The collection of paired data.
In certain embodiments, the direction from front to back along car load sets gradually first group to the 4th group weighing unit, wherein
First group of weighing unit and second group of weighing unit distance in the longitudinal direction is L1,1800mm≤L1≤2200mm, and the 3rd group claims
Weight platform and the 4th group of weighing unit can move relative to second group of weighing unit along the longitudinal direction as an entirety, the 3rd group of weighing unit with
Second group of weighing platform distance in the longitudinal direction is L2,2200mm≤L2≤5250mm, the 3rd group of weighing unit and the 4th group
Weighing unit distance in the longitudinal direction is L3,1250mm≤L3≤1450mm.
It is to say, first group of weighing unit and second group of weighing unit can be as entirety, the 3rd group of weighing unit and
Four groups of weighing units are as an entirety, and the latter can the former vertically moves relatively, and moving range can be 2200mm~5250mm,
Preferably, the assembly of the 3rd group of weighing unit and the 4th group of weighing unit can by motor, decelerator drive leading screw adjust with
First group of weighing unit and the distance of second group of weighing unit assembly.
Meanwhile, first group of weighing unit can be finely tuned by relative second group of weighing unit in the vertical, adjusting range be 0mm~
400mm, the 3rd group of weighing unit can finely tune by relative 4th group of weighing unit in the vertical, and adjusting range is 0mm~200mm, micro-
Tune can be manually adjusted by lead screw transmission, is thus suitable for the wheelbase requirement of different tested vehicle.
As a kind of embodiment, when tested vehicle is parked in wheel supporting position, each axle wheel of four-axle vehicle is the most right
Should be parked on four groups of weighing units, the first axle wheel of six-wheel vehicle is parked on second group of weighing unit, and additionally two-axle car wheel stops respectively
On the 3rd group and the 4th group of weighing unit, two axles of two-axle car are parked on second group and the 4th group of weighing unit respectively, thus real
The now detection to different wheelbase vehicles.
Preferably, at four end angles of each weighing unit 2, an internal thread hole can be provided with, for fixed protection chain guard, anti-
Only vehicle unstability tipping when doing high inclination-angle lifting.
In certain embodiments, as shown in Figure 6, two the first risers that bracing frame 12 includes cover plate 121, is oppositely arranged
122, the first riser 122 is vertically arranged and extends along the longitudinal direction, and as shown in Figure 8, each first riser 122 all includes that first stands
Plate body 1221, vertical first riser body 1221 are to the first plate 1222 extended away from the first riser body 1221 direction and the
Two plates 1223, the first plate 1222 is located at the bottom of the first riser body 1221, and the second plate 1223 is positioned at above the first plate 1222, lid
The two ends, left and right of plate 121 are respectively supported on two the second plates 1223.
Specifically, the first plate 1222 is fixed on foundation, and steel bar welding reserved with ground after equipment leveling
Connecing, make the first riser 122 and ground be connected firmly stable, the second plate 1223 is positioned at above the first plate 1222, and away from the first riser
Top a certain distance of 122, such as, can be 80mm, and the upper end of the i.e. first riser 122 is higher than the upper surface of cover plate 121, this
Sample, can prevent vehicle poor direction in the process of moving, or roll excessive in test process and make vehicle rollover, play protection
Effect.
As a kind of embodiment, the first riser 122 can use steel, and thickness can be 30mm, and the first riser 122
Inner surface can weld multiple channel-section steel as reinforcement, to increase the strength and stiffness of the first riser 122, make car load barycenter examine
Survey platform 100 to support the most firmly.
Preferably, bracing frame 12 also includes the second riser that two ends, left and right are separately fixed on two the first risers 122
123, the second riser 123 extends in left-right direction, each second riser 123 all include the second riser body 1231, vertical second
Riser body 1231 is to the 3rd plate 1232 and the 4th plate 1233 extended away from the second riser body 1231 direction, the 3rd plate 1232
Being located at the bottom of the second riser body 1231, the 4th plate 1233 is positioned at above the 3rd plate 1232, and front end or the rear end of cover plate 121 are propped up
Support is on the 4th plate 1233, on the steel plate that the first plate 1222 is pre-buried in being fixed on trench together with the 3rd plate 1232.
Specifically, the 3rd plate 1232 is overlapped on the first plate 1222, and is fixed in trench pre-together with the first plate 1222
On the steel plate buried, making the second riser 123 be connected with ground firm stable, the 4th plate 1233 is positioned at above the 3rd plate 1232, and with
The height of the second plate 1223 is identical, thereby guarantees that cover plate 121 is in level, and advantageously, the bottom of cover plate 121 can be arranged
Multiple pillars, multiple pillars are intervally arranged along the longitudinal direction in the bottom of cover plate 121, so can improve the support energy of cover plate 121
Power.
Preferably, the second riser 123 can also use steel, and thickness can be 30mm, and the inner surface of the second riser 123
Multiple channel-section steel can be welded as reinforcement, to increase the strength and stiffness of the second riser 123, make testboard support steadily jail
Gu.
As a kind of embodiment, as it is shown in fig. 7, the two ends of the first riser 122 are provided with multiple first installing hole 1224, the
One installing hole 1224 is intervally arranged along the vertical direction in the end of the first riser 122, correspondingly, as shown in Figure 10, and the second riser
Can arrange side fixed plate 1234 on 123, side fixed plate 1234 is provided with multiple second installing hole 1235, the second installing hole
1235 are intervally arranged in side fixed plate 1234 along the vertical direction, and the first installing hole 1224 coordinates with the second installing hole 1235,
It is adapted to pass through bolt to be connected fixing with the second riser 123 for the first riser 122.
In certain embodiments, as shown in Figure 6, central passage 11, central passage 11 it are additionally provided with between two bracing frames 12
Extend along the longitudinal direction, and passage 11 concave downward a certain distance, the bottom of passage 11 is concordant with bottom the first riser 122,
Before and after passage 11, two ends are provided with step, are thus easy to testing staff and enter passage 11 and check vehicle chassis, prevent
Occur leaking the phenomenons such as leakage of oil.
Preferably, the non-principal load-bearing district (being not provided with the region of weighing unit 2) at the first riser 122 can arrange maintenance
Mouthful, it is simple to overhauling equipment and maintain, meanwhile, be crisscross arranged on first riser 122 of two, the left and right of bracing frame 12 photograph
Bright lamp and unexplosive convenience receptacle, illuminating lamp can arrange one at interval of 3m, and unexplosive convenience receptacle can include holes and three holes,
To facilitate tester that vehicle body is checked.
Advantageously, trench is interior and trench periphery can arrange pumping equipment, to produce hydrops or hydrops etc. in avoiding trench,
Improve the safety of detection environment.
In certain embodiments, car load centroid detection platform 100 could be included for detecting the position of elevating ram 3 displacement
Moving detection device, for example, it may be displacement transducer, displacement transducer can be installed in hydraulic cylinder, and thus reliability is high, and
Structure is hidden, can effectively avoid the frame for movement layout of system.
Preferably, car load centroid detection platform 100 with adoption rate servo closed control hydraulic system, thus can be able to ensure
The precision of detection and the stability of detection, each elevating ram 3 can be carried out individually control by this system, and detecting system can be examined respectively
Measuring car wheel active force and elevating ram 3 displacement, thus obtain wheel stress curve, complete vehicle frame torsion test.
Preferably, the computer of car load centroid detection platform 100 can be provided with human-computer interaction interface, for operator and control
The dialogue of system processed and interaction, facilitate operator to store experimental data, show, safeguard and print.
The worked of car load centroid detection platform 100 according to embodiments of the present invention is described in detail referring to Fig. 1-Figure 11
Journey:
When needs carry out wheel load detection, the active force of weighing unit 2 is passed through four contact points of LOAD CELLS by wheel
It is changed into the signal of telecommunication, after the signal of telecommunication is by the process of hardware system, the weighing data of vehicle is transferred to display screen, completes logarithm
According to collection.
When needs carry out centroid detection, input direction of traffic and wheelbase information, LOAD CELLS can record each weighing unit 2
Normal load and full payload signal signal is fed back to system, systematic analysis judge the load condition of weighing unit 2, barycenter away from
From the first wheelbase from and barycenter off-center axial line distance after determine barycenter in X, the position of Y plane, enter height of center of mass test
During interface, controller controls hydraulic system makes one or more weighing unit 2 rise to set stroke, automated system operation barycenter
High measure program, thus obtain barycenter position in z-direction.
When needs carry out chassis torsion test, controller can control hydraulic system according to test requirements document makes front and rear
At least two weighing unit 2 in weighing unit 2 completes lifting, and moves to set stroke, utilizes LOAD CELLS and displacement detecting
Device gather respectively wheel by force information and displacement information, then by the process of hardware system after, data are shown external
On display screen, complete the measurement to vehicle frame moment of torsion.
In short, car load centroid detection platform 100 according to embodiments of the present invention, by arrange multiple weighing unit 2 and
Corresponding multiple elevating ram 3, and utilize individually lifting or the combined artificial lift of each weighing unit 2, thus can realize simultaneously right
Vehicle wheel load, barycenter and the measurement of vehicle frame moment of torsion.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
What one or more embodiments or example combine in an appropriate manner.Additionally, those skilled in the art can be by this theory
Different embodiments or example described in bright book engage and combine.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Claims (11)
1. a car load centroid detection platform, it is characterised in that including:
Framework, described framework includes passage and is positioned at two bracing frames of the described passage left and right sides in being located at trench;
Multiple weighing units, weighing unit described in each two is one group, and often two described weighing units in group weighing unit are correspondingly
Liftably it is located on two bracing frames, and each described weighing unit is adapted to support a wheel of car load to detect this wheel
Wheel load;
Multiple elevating rams, multiple elevating rams are connected correspondingly with multiple weighing units, and each described elevating ram is equal
The most described weighing unit can be lifted independently.
Car load centroid detection platform the most according to claim 1, it is characterised in that before and after car load on direction, be positioned at
The least one set weighing unit in front is provided with the corner measuring apparatus for detecting wheel steering angle.
Car load centroid detection platform the most according to claim 1, it is characterised in that the institute in described least one set weighing unit
Stating weighing unit and include support frame and rotary support, the most described support frame of described rotary support is rotatable, and described wheel props up
Support is on described rotary support, and described corner measuring apparatus is for measuring what described rotary support rotated relative to described support frame
Angle.
Car load centroid detection platform the most according to claim 1, it is characterised in that each described weighing unit all includes weighing
Panel, LOAD CELLS and pedestal, described LOAD CELLS is located at described pedestal and described weighs between panel, described in weigh face
Plate is used for supporting wheel, and described LOAD CELLS is multiple, and multiple described LOAD CELLSs are around the circumferentially-spaced cloth of described pedestal
Put.
Car load centroid detection platform the most according to claim 1, it is characterised in that the maximum of each described weighing unit is weighed
Amount is 15 tons.
6. according to the car load centroid detection platform according to any one of claim 1-5, it is characterised in that along car load from forward direction
Rear is to setting gradually first group to the 4th group weighing unit, and wherein first group of weighing unit and second group of weighing unit are in the longitudinal direction
Distance be L1,1800mm≤L1≤2200mm, the 3rd group of weighing unit and the 4th group of weighing unit can institutes relatively as an entirety
Stating second group of weighing unit to move along the longitudinal direction, described 3rd group of weighing unit is with described second group of weighing platform in the longitudinal direction
Distance be L2,2200mm≤L2≤5250mm, described 3rd group of weighing unit and the 4th group of weighing unit in the longitudinal direction away from
From for L3,1250mm≤L3≤1450mm.
7. according to the car load centroid detection platform according to any one of claim 1-5, it is characterised in that support frame as described above includes
Cover plate, two be oppositely arranged the first riser, described first riser is vertically arranged and extends along the longitudinal direction, and each described first
Riser all includes that the first riser body, the most described first riser body are to the extended away from described first riser body direction
One plate and the second plate, described first plate is located at the bottom of described first riser body, and described second plate is positioned on described first plate
Side, the two ends, left and right of described cover plate are respectively supported on two the second plates.
Car load centroid detection platform the most according to claim 7, it is characterised in that support frame as described above also includes two ends, left and right
Being separately fixed at the second riser on two described first risers, described second riser extends in left-right direction, and each described
Two risers all include that the second riser body, the most described second riser body are to away from described second riser body direction extension
3rd plate and the 4th plate, described 3rd plate is located at the bottom of described second riser body, and described 4th plate is positioned at described 3rd plate
Top, the front end of described cover plate or rear end be supported on described 4th plate, and described first plate is fixed on together with described 3rd plate
On steel plate pre-buried in described trench.
Car load centroid detection platform the most according to claim 8, it is characterised in that the upper end of described first riser is higher than institute
State the upper surface of cover plate.
10. according to the car load centroid detection platform according to any one of claim 1-5, it is characterised in that also include for examining
Survey the displacement detector of described elevating ram displacement.
11. according to the car load centroid detection platform according to any one of claim 1-5, it is characterised in that described elevating ram
Stroke be 0-1400mm, and described elevating ram is positively retained at any position of stroke, the lifting speed of described elevating ram
Degree is 3mm/s-5mm/s.
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CN201610804719.XA CN106153255B (en) | 2016-09-05 | 2016-09-05 | Vehicle centroid detection platform |
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CN201610804719.XA CN106153255B (en) | 2016-09-05 | 2016-09-05 | Vehicle centroid detection platform |
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