CN107421676A - A kind of suspension type space dynamometric system - Google Patents
A kind of suspension type space dynamometric system Download PDFInfo
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- CN107421676A CN107421676A CN201710595836.4A CN201710595836A CN107421676A CN 107421676 A CN107421676 A CN 107421676A CN 201710595836 A CN201710595836 A CN 201710595836A CN 107421676 A CN107421676 A CN 107421676A
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- 239000000725 suspension Substances 0.000 title claims abstract description 26
- 230000002153 concerted effect Effects 0.000 claims abstract description 15
- 239000011888 foil Substances 0.000 claims description 18
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 5
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- 239000011159 matrix material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000000205 computational method Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 230000000916 dilatatory effect Effects 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
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- 239000010959 steel Substances 0.000 description 2
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- 210000003205 muscle Anatomy 0.000 description 1
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Classifications
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- 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
- G01L5/13—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the tractive or propulsive power of vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
A kind of suspension type space dynamometric system, belongs to dynameter technical field.Including upper connecting rod, pulling force sensor and angular transducer are connected in series thereon, and the one end for connecting pulling force sensor is connected to the upper suspension of tractor trifilar suspension frame, and the other end connects the upper connecting rod node of equipment link to be measured；Lower pull bar is two, and one end connection tractor, the other end connects force cell respectively, and the signal wire of force cell connects the crossbeam of equipment to be measured；Pulling force sensor, angular transducer and two force cells connect computer by receiving with data acquisition device respectively, are calculated by computer and show that all directions are made a concerted effort.The present invention can record the magnitude of voltage that each sensor exports in agricultural machinery and implement field work in real time, and can accurately obtain the size of its tractive force.The power acted on suitable for the tractive force size and soil that determine any agricultural machinery and implement connected by trifilar suspension on equipment.
Description
Technical field
The invention belongs to dynameter technical field, more particularly to a kind of suspension type space dynamometric system.
Background technology
At present, by research, measured object caused load in actual use is determined using force cell.Example
Such as, all directions pulling force etc. is measured to agricultural tool.To detect the size of agricultural tool required pulling force when in use, it is suitable to be equipped with
Tractive force.Existing device for measuring force uses octagonal ring or combined beam structure more, and angular surveying is carried out using multiple angular transducers,
Structure is cumbersome, adds cost.
The utility model patent of Patent No. 201520698859.4, disclose a kind of tractor suspension tilling depth that is used for and control
Draft sensing mechanism, including upper connecting rod, lower pull bar, dynamometer spring, spring static housing, spring base, tooth fan, little gear with
And angular displacement sensor, by the installing force sensing mechanism on upper connecting rod, the power on upper connecting rod is transmitted to tooth fan, gear enlarger
Structure, so as to which displacement is converted into angular metric, realize the power sensing control of hitch；Pass through the setting angle on lift arm
Sensor, realize the comprehensive adjustment of tilling depth.But its drive mechanism is complicated, using high with maintenance cost, and can not detect each
Make a concerted effort on direction.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of suspension type space dynamometric system, and it is only with one
Angular transducer, only it need to measure an angle, you can draw the pulling force of agricultural machinery and implement all directions.
The purpose of the present invention is achieved through the following technical solutions：
A kind of suspension type space of the invention dynamometric system, including：
Upper connecting rod, pulling force sensor and angular transducer are connected in series thereon, the one end for connecting pulling force sensor is connected to
The upper suspension of tractor hanger bracket, the other end connect the upper connecting rod node of equipment link to be measured；
Lower pull bar, it is two, one end connection tractor, the other end connects force cell, force cell connection respectively
The crossbeam of equipment to be measured；
Pulling force sensor, angular transducer and two force cells connect computer by data acquisition unit respectively, pass through
Computer, which calculates, shows that all directions are made a concerted effort.
Further, described force cell one end sets connecting plate, and for connecting equipment to be measured, the other end sets connection
Otic placode, is load frame for connecting the connecting shaft of lower pull bar, between connecting plate and connection otic placode, and the load frame is that middle part is hollow
Frame structure, and gap is carried close to the side of connection otic placode in load frame, make two parts separation up and down, upper cantilever is formed at top
Analysis of A Cantilever Beam Under is formed at beam, bottom；Gap between upper and lower cantilever beam is the fluted body structure with flanging.
A kind of dynamometry mode of the present invention, in dynamometry, two groups are respectively symmetrically set in the connection otic placode upper and lower surface
Foil gauge R1、R2And R3、R4；Upper cantilever top surface of the beam and bottom surface respectively symmetrically set two groups of foil gauge R5、R6And R7、R8, overlap joint helps
Bridge circuit, data wire connect computer respectively by straining amplification and data acquisition device.
The present invention another dynamometry mode, in dynamometry, the connection otic placode correspond to upper cantilever beam side and its
Close upper cantilever beam inside casing respectively symmetrically sets two groups of foil gauge R9、R10And R11、R12, upper cantilever top surface of the beam and bottom surface are distinguished
It is symmetrical arranged two groups of foil gauge R5、R6And R7、R8, full-bridge circuit is overlapped to form, data wire is by straining amplification and data acquisition device
Computer is connected respectively.
Further, the gap x of the upper and lower cantilever beam vertically is horizontally tracting resistance and vertical direction power
With joint efforts to the deflection value sum of cantilever beam end A points.
Further, circular arc through hole, built-in steel are provided with the matrix groove sidewall of the upper cantilever beam end A points
Muscle, and reinforcing bar external diameter protrudes the circular arc through hole border, its projection maximum length is less than the gap x between upper Analysis of A Cantilever Beam Under,
To adjust the maximum overload protection value of load frame.
Further, the vertical Y direction height h of the connection otic placode1For 3-5 times of connection pore radius r be provided with thereon,
I.e.：h1=(3-5) r.
Further, the connection otic placode is along horizontal Z-direction widthObtained by following equation:
Wherein：Fy：Using power of the connecting hole center as origin vertically, σ1：FyRelative to connection otic placode
Root vertical section M1 stress, the M1 sections are crossed at connection otic placode foil gauge；l1：FyTo section M1 distance, h1：Connection
Otic placode vertical direction height；
Wherein σ1Less than or equal to σPerhaps, thenTake σ1Close to σPerhaps, you can draw b1。
Further, the upper cantilever top surface of the beam is to the height h between bottom surface2, obtained by following equation:
Wherein σ2Less than or equal to σPerhaps, thenl2For connection centerline hole to section M2 away from
From upper cantilever Liang Yingbianpianchu is crossed in the M2 sections；Given Fy、l2、b2And σPerhaps, wherein load frame is along horizontal Z-direction width b2
=b1+b0, wherein b0For the distance between two connection otic placodes, you can determine h2。
Further, the computational methods of the computer are as follows：
The first step：The fixed known load of loading, demarcates each pulling force sensor and angular transducer；
Second step：Zeroing, carry out initial calibration during no-load；
3rd step：Start, input basic parameter, including upper and lower pull bar length and its locus, each sensor information,
Including 4 groups of strain transducers, angular transducer and pulling force sensor；
4th step：Tested, while receive the signal that each sensor measures；
5th step：The data measured according to each sensor, determine according to the synthesis of Vector modulation theorem and make a concerted effort on direction；
According to the actual requirements, the different angle of angular transducer input, obtain making a concerted effort on different directions；
6th step：Judge σ1、σ2Whether more than σPerhaps, such as exceed, then alarm, be no more than, continue 1-6 pacings examination.
Beneficial effects of the present invention are：
1. the present invention uses and is connected in series a pulling force sensor and one on the upper connecting rod being connected with tractor hanger bracket
Angular transducer, lower pull bar connect equipment to be measured by two force cells；Each sensor is connected by data acquisition unit respectively
Computer, calculated by computer and show that all directions are made a concerted effort.Allow the invention to record each sensor in real time in agricultural machinery and implement field
Between the magnitude of voltage that exports when working, and can accurately obtain the size of its tractive force.
2. it is band folding the dynamometry portion l-shaped structure of force cell of the present invention, between the upper and lower cantilever beam of its load frame
The fluted body gap on side, the gap X vertically coordinated are that horizontally tracting resistance and vertical direction power are made a concerted effort to cantilever beam
The deflection value sum of end A points, prevents load frame to be damaged.In dynamometry, respectively symmetrically set in the connection otic placode upper and lower surface
Two groups of foil gauges are put, prevent unbalance stress；Two groups of foil gauges are respectively symmetrically set in the upper cantilever top surface of the beam and bottom surface, formed
Full-bridge force measuring structure, when there are lateral forces, do not influence measurement result；Its h2With the determination of l length, in order to meet load frame
Bearing capacity, proof stress within allowable stress range, ensure measurement accuracy, prevent load frame to be damaged.
3. the present invention is applied to determine the tractive force size of any agricultural machinery and implement connected by trifilar suspension and soil acts on
Power on equipment.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the dimensional structure diagram of force cell in Fig. 1.
Fig. 3 is Fig. 2 force cell front view.
Fig. 4 is Fig. 3 I portions enlarged diagram.
Fig. 5 is Fig. 3 top view.
Fig. 6 is the strain gauge adhesion schematic diagram of embodiment 1.
Fig. 7 is the strain gauge adhesion schematic diagram of embodiment 2
Each hardware that Fig. 8 is the present invention connects block diagram.
In figure：1. hanger bracket, 2. pulling force sensors, 3. angular transducers, 4. upper connecting rods, 5. links, connect on 51.
Bar, 52. crossbeams, 6. force cells I, 61. connection otic placodes, 62. connecting holes, 63. inclined-planes, 64. upper cantilever beams, 65. connecting plates,
66. Analysis of A Cantilever Beam Under, 67. through holes, 68. gaps, 7. force cells II, 8. times pull bars.
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment 1：As shown in figure 1, a kind of suspension type space of the invention dynamometric system, including：
Upper connecting rod 4, is connected in series pulling force sensor 2 and angular transducer 3 thereon, and one end of connection pulling force sensor 2 connects
The upper suspension of tractor hanger bracket 1 is connected to, the other end connects the node of upper connecting rod 51 of equipment link 5 to be measured；
Lower pull bar 8, it is two, the lower suspension of one end connection tractor hanger bracket 1, the other end connects force cell respectively
I 6 and force cell II 7, two force cells be all connected with the crossbeam 52 of equipment to be measured；
Pulling force sensor 2, the force cell I 6, II 7 of angular transducer 3 and two are respectively by straining magnification circuit plate, number
Computer is connected according to collector, is calculated by computer and shows that all directions are made a concerted effort.
As shown in figure 8, the signal wire of the force cell I 6 and force cell II 7 connects foil gauge amplification electricity respectively
Road plate I, the signal wire connection foil gauge magnification circuit plate II of pulling force sensor, two foil gauge magnification circuit plates I and II it is defeated
Go out signal wire and computer is connected by data acquisition unit respectively.Battery is powered to angular transducer, and data acquisition unit is to strain
Piece amplification board provides supply voltage.
As Figure 2-Figure 5, the force cell I 6 is identical with the structure of force cell II 7, is symmetrical arranged, now with survey
Its structure is described in detail exemplified by force snesor I 6：Described one end of force cell I 6 sets connecting plate 65, on connecting plate
Four mounting holes are set, are connected by U-bolt with equipment to be measured, the other end sets connection otic placode 61, for connecting lower pull bar,
It is load frame between connecting plate 65 and connection otic placode 61, the load frame is the hollow frame structure in middle part, and close in load frame
The side of connection otic placode 61 carries gap 67, makes two parts separation up and down, and upper cantilever beam 64 is formed at top, and lower cantalever is formed at bottom
Beam 66；Gap 67 between upper and lower cantilever beam 64,66 is the fluted body structure with flanging, makes upper cantilever beam 64 and connection otic placode 61
The dynamometry portion of composition forms L-type structure.
As shown in fig. 6, during dynamometry, two groups of strain transducers are respectively symmetrically set in the upper and lower surface of connection otic placode 61,
Respectively R1、R2And R3、R4, prevent discontinuity；The top surface of upper cantilever beam 64 and bottom surface respectively symmetrically set two groups of strain sensings
Device, difference R5、R6And R7、R8, full-bridge connection is formed, when there is lateral forces, does not influence measurement result, each strain transducer
Computer is connected by data acquisition unit.
As shown in Figure 3, Figure 4, the gap x that the upper and lower cantilever beam 64,66 vertically coordinates is horizontally tracting resistance
With the deflection value sum made a concerted effort to cantilever beam end A points of vertical direction power, this example gap x is 1mm.Close to the upper cantilever beam
Circular arc through hole 68, built-in reinforcing bar, and reinforcing bar external diameter, which are provided with, in the matrix groove sidewall of 64 end A points protrudes the circular arc through hole 68
Border, its projection maximum length be less than upper and lower cantilever beam 64,66 between gap x, to adjust the maximum overload of load frame
Protection value.
The vertical Y direction height h of connection otic placode 61 described in this example1For the 3-5 for the radius r of connecting hole 62 being provided with thereon
Times, i.e.,：h1=(3-5) r.R is 12mm in this example, takes h1=3r=36mm；
The connection otic placode 61 is along horizontal Z-direction widthObtained by following equation:
Wherein：Fy：Using power of the connecting hole center as origin vertically, this example takes Fy=5000N；σ1：
FyRelative to connection otic placode root vertical section M1 stress, the M1 sections are crossed at connection otic placode foil gauge；l1：FyTo section
M1 distance, this example take l1=50mm；h1：Connection otic placode vertical direction height, is obtained：
Wherein σ1Less than or equal to σPerhaps(σPerhapsTake the allowable stress 120MPa of No. 45 steel), thenTake σ1
Close to σPerhaps, you can draw
This example takes b1=20mm, load frame is along horizontal Z-direction width b2=b1+b0, wherein b0Between two connection otic placodes 61
Distance, determined by the tip width of pull bar 8 under the tractor that is connected, be 35mm, obtain b2=b1+b0=55mm；
The top surface of upper cantilever beam 64 is to the height h between bottom surface2, obtained by following equation:The FyLoad inframe frame is leaned on
Stress caused by the vertical section M2 of nearly connecting plate 65：
Wherein σ2Less than or equal to σPerhaps, thenl2For the center line of connecting hole 62 to section M2Away from
From upper cantilever Liang Yingbianpianchu is crossed in the M2 sections；This example gives Fy=5000N, l2=100mm, b2=55mm and σPerhaps=
120MPa, you can it is determined thatThis example takes h2=25mm, meet dynamometry requirement.
In the use of the present invention, the measuring method of the computer is as follows：
The first step：The fixed known load of loading, demarcates each pulling force sensor and angular transducer；
Second step：Zeroing, carry out initial calibration during no-load；
3rd step：Start, input basic parameter, including upper and lower pull bar length and its locus, each sensor letter
Breath --- 4 groups of strain transducers, angular transducer and pulling force sensor；
4th step：Tested, while receive the signal that each sensor measures；
5th step：The data measured according to each sensor, determine according to the synthesis of Vector modulation theorem and make a concerted effort on direction；
According to the actual requirements, the different angle of angular transducer input, obtain making a concerted effort on different directions；
6th step：Judge σ1、σ2Whether more than σPerhaps, such as exceed, then alarm, be no more than, continue 1-6 pacings examination.
The test system of the present invention can in real time detect and show the moment of torsion and rotating speed of power output shaft, power output, drag
Tractive force of the machine drawing to agricultural machinery and implement.The sensor group of the system output power respectively axle moment of torsion, upper and lower pull bar effect
The physical quantitys such as power, the angle of upper connecting rod are converted to electric signal, and standard electric is converted into by signal conditioning circuit (magnification circuit plate)
Signal is pressed, data are transmitted by wirelessly transmitting data collector, the collection and display of data are carried out with computer.Signal condition electricity
The existing outsourcing piece that road and wirelessly transmitting data collector use, receives and is passed from angular transducer, pulling force sensor and moment of torsion
The signal of sensor, and through being wirelessly transferred the wireless receiving end of feeding computer end, it is soft by the test system developed based on LabVIEW
Part real-time display and carries out storage output shaft torque in the form of curve and data, equipment horizontally and vertically stress etc.
Data.
Embodiment 2：This example is as different from Example 1：As shown in fig. 6, this example is in dynamometry, in the connection otic placode 61
The side of corresponding upper cantilever beam 64 and its close upper cantilever beam inside casing respectively symmetrically set two groups of foil gauge R9、R10And R11、
R12, the top surface of upper cantilever beam 64 and bottom surface respectively symmetrically set two groups of foil gauge R5、R6And R7、R8, each strain transducer passes through data
Collector connects computer respectively.Its method of testing is same as Example 1.
The vertical Y direction height h of connection otic placode 611For 3-5 times of the radius r of connecting hole 62 be provided with thereon, i.e.,：h1
=(3-5) r.R is 12mm in this example, takes h1=4r=48mm；
The connection otic placode 61 is along horizontal Z-direction widthObtained by following equation:
Wherein：Fy：Using power of the connecting hole center as origin vertically, this example takes Fy=10000N；σ1：
FyRelative to connection otic placode root vertical section M1 stress, the M1 sections are crossed at connection otic placode foil gauge；l1：FyTo section
M1 distance, this example take l1=50mm；h1：Connection otic placode vertical direction height, is obtained：
Wherein σ1Less than or equal to σPerhaps, thenTake σ1Close to σPerhaps, you can draw
This example takes b1=20mm, load frame is along horizontal Z-direction width b2=b1+b0, wherein b0Between two connection otic placodes 61
Distance, determined by the tip width of pull bar 8 under the tractor that is connected, be 35mm, obtain b2=b1+b0=55mm.
The top surface of upper cantilever beam 64 is to the height h between inside casing2, obtained by following equation:The FyLoad inframe frame is leaned on
Stress caused by the vertical section M2 of nearly connecting plate 65, upper cantilever Liang Yingbianpianchu is crossed in the M2 sections：
Wherein σ2Less than or equal to σPerhaps, thenl2For the center line of connecting hole 62 to section M2Away from
From；This example gives Fy=10000N, l2=100mm, b2=55mm and σPerhaps=120MPa, you can it is determined thatThis example takes h2=40mm, meet dynamometry requirement.
Embodiment 3：This example is as different from Example 1：The vertical Y direction height h of connection otic placode 611To open thereon
3-5 times of some radius r of connecting hole 62, i.e.,：h1=(3-5) r.R is 12mm in this example, takes h1=5r=60mm；
The connection otic placode 61 is along horizontal Z-direction widthObtained by following equation:
Wherein：Fy：Using power of the connecting hole center as origin vertically, this example takes Fy=8000N；σ1：
FyRelative to connection otic placode root vertical section M1 stress, l1：FyTo section M1 distance, this example takes l1=60mm；h1：Connection
Otic placode vertical direction height, is obtained：
Wherein σ1Less than or equal to σPerhaps, thenTake σ1Close to σPerhaps, you can draw
This example takes b1=15mm, load frame is along horizontal Z-direction width b2=b1+b0, wherein b0Between two connection otic placodes 61
Distance, determined by the tip width of pull bar 8 under the tractor that is connected, be 35mm, obtain b2=b1+b0=50mm.
The top surface of upper cantilever beam 64 is to the height h between inside casing2, obtained by following equation:The FyLoad inframe frame is leaned on
Stress caused by the vertical section M2 of nearly connecting plate 65：
Wherein σ2Less than or equal to σPerhaps, thenl2For the center line of connecting hole 62 to section M2Distance；This
The given F of exampley=8000N, l2=110mm, b2=50mm and σPerhaps=120MPa, you can it is determined that
This example takes h2=40mm, meet dynamometry requirement.
Claims (10)
- A kind of 1. suspension type space dynamometric system, it is characterised in that：Including：Upper connecting rod, be connected in series pulling force sensor and angular transducer thereon, connect pulling force sensor one end be connected to it is dilatory The upper suspension of machine hanger bracket, the other end connect the upper connecting rod node of equipment link to be measured；Lower pull bar, it is two, one end connection tractor, the other end connects force cell respectively, and force cell connection is to be measured The crossbeam of equipment；Pulling force sensor, angular transducer and two force cells connect computer by data acquisition unit respectively, pass through calculating Machine, which calculates, shows that all directions are made a concerted effort.
- 2. suspension type space dynamometric system according to claim 1, it is characterised in that：Described force cell one end, which is set, to be connected Fishplate bar, for connecting equipment to be measured, the other end sets connection otic placode, for connecting the connecting shaft of lower pull bar, connecting plate and connection It is load frame between otic placode, the load frame is the hollow frame structure in middle part, and the side band in load frame close to connection otic placode There is gap, make two parts separation up and down, upper cantilever beam is formed at top, and Analysis of A Cantilever Beam Under is formed at bottom；Gap between upper and lower cantilever beam For the fluted body structure with flanging.
- 3. suspension type space dynamometric system according to claim 2, it is characterised in that：During dynamometry, in the connection otic placode Lower surface respectively symmetrically sets two groups of foil gauge R1、R2And R3、R4；Upper cantilever top surface of the beam and bottom surface respectively symmetrically set two groups to answer Become piece R5、R6And R7、R8, full-bridge circuit is overlapped to form, data wire connects calculating respectively by straining amplification and data acquisition device Machine.
- 4. suspension type space dynamometric system according to claim 2, it is characterised in that：During dynamometry, in the connection otic placode pair The side and its close upper cantilever beam inside casing for answering upper cantilever beam respectively symmetrically set two groups of foil gauge R9、R10And R11、R12, on Cantilever top surface of the beam and bottom surface respectively symmetrically set two groups of foil gauge R5、R6And R7、R8, full-bridge circuit is overlapped to form, data wire is by answering Become amplification and data acquisition device connects computer respectively.
- 5. suspension type space dynamometric system according to claim 2, it is characterised in that：The upper and lower vertical side in cantilever beam edge To gap x be horizontally tracting resistance and vertical direction power the deflection value sum made a concerted effort to cantilever beam end A points.
- 6. suspension type space dynamometric system according to claim 2, it is characterised in that：Close to the upper cantilever beam end A points Matrix groove sidewall on be provided with circular arc through hole, built-in reinforcing bar, and reinforcing bar external diameter and protrude the circular arc through hole border, its protuberance The gap x for dividing maximum length to be less than between upper Analysis of A Cantilever Beam Under, to adjust the maximum overload protection value of load frame.
- 7. suspension type space dynamometric system according to claim 2, it is characterised in that：The vertical Y direction of connection otic placode Height h1For 3-5 times of connection pore radius r be provided with thereon, i.e.,：h1=(3-5) r.
- 8. suspension type space dynamometric system according to claim 2, it is characterised in that：The connection otic placode is along horizontal Z axis side To widthObtained by following equation:Wherein：Fy：Using power of the connecting hole center as origin vertically, σ1：FyRelative to connection otic placode root Vertical section M1 stress, the M1 sections are crossed at connection otic placode foil gauge；l1：FyTo section M1 distance, h1：Connection otic placode Vertical direction height；Wherein σ1Less than or equal to σPerhaps, thenTake σ1Close to σPerhaps, you can draw b1。
- 9. suspension type space dynamometric system according to claim 2, it is characterised in that：The upper cantilever top surface of the beam is between bottom surface Height h2, obtained by following equation:Wherein σ2Less than or equal to σPerhaps, thenl2For connection centerline hole to section M2 distance, institute State M2 sections and cross upper cantilever Liang Yingbianpianchu；Given Fy、l2、b2And σPerhaps, wherein load frame is along horizontal Z-direction width b2=b1+ b0, wherein b0For the distance between two connection otic placodes, you can determine h2。
- 10. suspension type space dynamometric system according to claim 1, it is characterised in that：The computational methods of the computer are such as Under：The first step：The fixed known load of loading, demarcates each pulling force sensor and angular transducer；Second step：Zeroing, carry out initial calibration during no-load；3rd step：Start, input basic parameter, including upper and lower pull bar length and its locus, each sensor information, including 4 Group strain transducer, angular transducer and pulling force sensor；4th step：Tested, while receive the signal that each sensor measures；5th step：The data measured according to each sensor, determine according to the synthesis of Vector modulation theorem and make a concerted effort on direction；According to Actual demand, the different angle of angular transducer input, obtain making a concerted effort on different directions；6th step：Judge σ1、σ2Whether more than σPerhaps, such as exceed, then alarm, be no more than, continue 1-6 pacings examination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595836.4A CN107421676B (en) | 2017-07-20 | 2017-07-20 | Suspension type space force measuring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595836.4A CN107421676B (en) | 2017-07-20 | 2017-07-20 | Suspension type space force measuring system |
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| Publication Number | Publication Date |
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| CN107421676A true CN107421676A (en) | 2017-12-01 |
| CN107421676B CN107421676B (en) | 2024-03-12 |
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| CN201710595836.4A Active CN107421676B (en) | 2017-07-20 | 2017-07-20 | Suspension type space force measuring system |
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| CN108519187A (en) * | 2018-05-17 | 2018-09-11 | 吉林大学 | A kind of tractor hydraulic promotes force measuring system and measurement method |
| CN110082011A (en) * | 2019-04-08 | 2019-08-02 | 太原理工大学 | A kind of multistage dynamometry location displacement sensor |
| CN110132470A (en) * | 2019-05-14 | 2019-08-16 | 安徽农业大学 | A kind of plow-plant equipment power loss detection device and its detection method |
| CN110672348A (en) * | 2019-10-16 | 2020-01-10 | 黑龙江省农业机械工程科学研究院 | Agricultural machinery operation part force measuring frame |
| KR102128252B1 (en) * | 2019-06-17 | 2020-06-30 | 한국생산기술연구원 | Integrated measuring apparatus for load and traction applied by a tractor and, methods therefor |
| CN111811722A (en) * | 2020-07-10 | 2020-10-23 | 北京交通大学 | Motor vertical load testing structure and method for rib plate type motor suspension force measuring framework |
| IT202000006535A1 (en) * | 2020-03-27 | 2021-09-27 | Maschio Gaspardo Spa | Electronically controlled agricultural machine and its operating method |
| WO2021191881A1 (en) * | 2020-03-27 | 2021-09-30 | Maschio Gaspardo S.P.A. | Agricultural machine with electronic control and relevant operating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108519187A (en) * | 2018-05-17 | 2018-09-11 | 吉林大学 | A kind of tractor hydraulic promotes force measuring system and measurement method |
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| CN110132470A (en) * | 2019-05-14 | 2019-08-16 | 安徽农业大学 | A kind of plow-plant equipment power loss detection device and its detection method |
| KR102128252B1 (en) * | 2019-06-17 | 2020-06-30 | 한국생산기술연구원 | Integrated measuring apparatus for load and traction applied by a tractor and, methods therefor |
| CN110672348A (en) * | 2019-10-16 | 2020-01-10 | 黑龙江省农业机械工程科学研究院 | Agricultural machinery operation part force measuring frame |
| IT202000006535A1 (en) * | 2020-03-27 | 2021-09-27 | Maschio Gaspardo Spa | Electronically controlled agricultural machine and its operating method |
| WO2021191881A1 (en) * | 2020-03-27 | 2021-09-30 | Maschio Gaspardo S.P.A. | Agricultural machine with electronic control and relevant operating method |
| CN111811722A (en) * | 2020-07-10 | 2020-10-23 | 北京交通大学 | Motor vertical load testing structure and method for rib plate type motor suspension force measuring framework |
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