CN108106782B - A kind of dynamic hanging type overloading and unbalanced loading of container detection method - Google Patents
A kind of dynamic hanging type overloading and unbalanced loading of container detection method Download PDFInfo
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- CN108106782B CN108106782B CN201711375773.8A CN201711375773A CN108106782B CN 108106782 B CN108106782 B CN 108106782B CN 201711375773 A CN201711375773 A CN 201711375773A CN 108106782 B CN108106782 B CN 108106782B
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000005303 weighing Methods 0.000 claims abstract description 67
- 230000001133 acceleration Effects 0.000 claims abstract description 55
- 230000005484 gravity Effects 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000013065 commercial product Substances 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 2
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- 239000000725 suspension Substances 0.000 description 2
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Classifications
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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
- G01M1/14—Determining imbalance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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Abstract
The present invention relates to a kind of dynamic overloading and unbalanced loading of container detection methods, belong to traffic and transport field about railway container weighing measurement technology, specifically utilize the acceleration and weight of container in acceleration transducer and weighing sensor real-time detection dynamic hoisting process, acceleration is recycled to be modified weight, and then determine the unbalance loading value and weight of container when Super leaning load, the measurement result of more existing overloading and unbalanced loading of container detection device is more accurate, it can be preferably national economy and scientific and technical development service, ensure the accurate and reliable of quality measurements, and detection method of the invention is simple and easy to do, used equipment belongs to commercial product, risk of input is small, advantage of lower cost.
Description
Technical field
The invention belongs to traffic and transport field Branch of Mechanics about railway container Weighing problem, in particular to a kind of
Dynamic hanging type overloading and unbalanced loading of container detection method.
Background technique
Dynamic hanging type overloading and unbalanced loading of container detection device is when loading container in railway transportation, to rise at gate seat (gantry)
That installs on heavy-duty machine or front-handling mobile crane is used to detect by the Container Weight of handling and center of gravity floor projection position, and sentences
The disconnected device whether to transfinite.
Existing hanging type overloading and unbalanced loading of container detection device product is when there are when acceleration for the non-at the uniform velocity lifting of lifting process
Relatively large deviation can be generated to testing result, the deviation is to container gross weight G, left and right (x-axis direction) the unbalance loading value l measuredxAnd
Front and back (y-axis direction) unbalance loading value lyIt has a significant impact, biggish measured deviation will have a direct impact on the peace during container in hoisting status
Quan Xing.The clear stipulaties in China, " railway cargo loading process reinforces rule ": " after cargo entrucking, position is answered in the projection of cargo total centre of gravity
In on the crosspoint of the longitudinal and transverse center line on lorry floor, it is necessary to when deviateing, lateral run-out amount must not exceed 100mm, when being more than,
Counterweight measure should be taken;When longitudinal deviation, the goods weight that each bogie of car is born must not exceed lorry admissible load
The half of amount, and the difference of two bogies receiving weight is not greater than 10t ".
But there are two defects in the design in current hanging type overloading and unbalanced loading of container detection device, first is that having ignored
Acceleration existing for lifting process is to relatively large deviation caused by testing result;Second is that container spreader is horizontal, ground not
When horizontal and crane runway is not horizontal, testing result can generate relatively large deviation;Biggish measurement is inclined during container in hoisting status
Difference will have a direct impact on the safety of Railway Container Transport.
Summary of the invention
In order to solve the deficiency in the presence of overloading and unbalanced loading of container detection process in the prior art, the present invention provides one kind
Dynamic hanging type overloading and unbalanced loading of container detection method.
The technical scheme adopted by the invention is that:
A kind of dynamic hanging type overloading and unbalanced loading of container detection method, realize the following steps are included:
(1) tested container (5) is lifted on suspender (1), weighing sensor (3) is installed on the twist lock of suspender (1),
Installation at least one acceleration transducer (2), acceleration transducer (2) and weighing sensor are nearby corresponded in weighing sensor (3)
(3) it is connect by wireless communication mode with Weighing indicator (4);
(2) container (5) is stood before lifting for zero point, detects container (5) at zero point by weighing sensor (3)
Weight data is simultaneously transferred to Weighing indicator (4);
(3) after container (5) are lifted by crane, acceleration that acceleration transducer (2) and weighing sensor (3) will test in real time
Value and weight data are transferred to Weighing indicator (4);
(4) data-signal of CPU module receiving step (2) and (3) of Weighing indicator (4), to weighing sensor (3) and
Acceleration transducer (2) is circumferentially numbered clockwise or counter-clockwise according to suspender (1), and using the central point of suspender (1) as origin,
It crosses central point and is x-axis along the extension of suspender (1) length direction, cross central point and be y along the extension of suspender (1) width direction
Axis establishes Load Model;
(5) CPU module of Weighing indicator (4) passes through following public affairs according to the stress condition for the Load Model established
Formula is calculated, and determines the dynamic unbalance loading value L of the lifting modified container of post-acceleration (5)x、LyAnd container (5) weight M,
Calculation formula are as follows:
Wherein:N is the quantity of acceleration transducer (2), aiFor i-th of acceleration sensing
The speed change acceleration value of device (2) detection;
M is the quality of container (5);
m1、m2... for the qualitative data of each weighing sensor (3) detection, kg or t;
G is acceleration of gravity, m/s2;
LxUnbalance loading amount for container (5) center of gravity in longitudinal direction (X-axis) direction, mm;
LyUnbalance loading amount for container (5) center of gravity in transverse direction (Y-axis) direction, mm;
The distance of A length direction between container (5) vertical corner hole, mm;
B is the distance of length direction between container (5) lateral corner apertures, mm.
It further limits, the weighing sensor (3) is 2~4.
It further limits, when the weighing sensor (3) is 2, is mounted on two twist locks of suspender (1) relative angle,
Acceleration transducer (2) and weighing sensor correspond, and m2=m4=0 or m1=m3=0.
Dynamic hanging type overloading and unbalanced loading of container detection method of the invention is to utilize acceleration transducer and weighing sensor
Acceleration and weight in real-time detection dynamic hoisting process when container variable motion recycle acceleration to repair weight
Just, and then the unbalance loading value and Container Weight of container when Super leaning load, compared with prior art, beneficial effect of the invention are determined
Fruit is:
(1) due to the present invention in view of the change of physical presence accelerates influence of the lifting brief acceleration to measurement result, to survey
Amount result is corrected, and the measurement result of more existing overloading and unbalanced loading of container detection device is more accurate and reliable, can be more preferable
Ground is the development service of national economy and science and technology, is provided safeguard safely for Container Transport.
(2) detection method of the invention is simple and easy to do, and the components such as used piezoresistance type acceleration sensor belong to
Commercially available matured product, risk of input is small, advantage of lower cost.
(3) detection method operand of the invention is small, and detection sensitivity is high, small by external environmental interference.
Detailed description of the invention
Fig. 1 is the schematic view of the mounting position of weighing sensor 3 and acceleration transducer 2.
Fig. 2 is unbalance loading amount computation model.
Specific embodiment
Dynamic hanging type overloading and unbalanced loading of container detection method of the invention is for detecting in railway, harbour, quay transportation
When loading container 5, by the weight and center of gravity of the container 5 of handling on gate seat (gantry) crane or front-handling mobile crane
In horizontal plane projected position, and judge whether it transfinites, i.e., will test respectively using weighing sensor 3 and acceleration transducer 2
To signal be converted by transmitter the analog signals for acquisition process of standard, this is believed by wireless signal transmitting terminal
The reception of wireless signals end for number passing to Weighing indicator 4, by the CPU of Weighing indicator 4 by acquired reception of wireless signals end
Signal processing calculating is carried out by software, obtain gross weight, the unbalance loading value of container 5, and data are shown in man-machine interface,
And it can store, print.
Embodiment 1
Referring to Fig. 1 and 2, the Super leaning load detection method of the present embodiment is realized by following steps:
(1) tested container 5 is lifted on the suspender 1 of gantry crane or front-handling mobile crane, and in suspender 1
Four angle twist locks on install 4 weighing sensors 3, detect container 54 angles stress condition;In each weighing and sensing
1 acceleration transducer 2, the speed change acceleration after detection lifting are respectively installed on the corresponding angle of device 3;Acceleration transducer 2 and title
It retransmits 3 output signal of sensor and this signal is emitted to reception of wireless signals end by wireless signal transmitting terminal, pass through wireless telecommunications
It is connect with Weighing indicator 4;
(2) weight data of container 5 at zero point is detected simultaneously by weighing sensor 3 when standing before container 5 lifts by crane
It is transferred to Weighing indicator 4;
(3) after container 5 lifts by crane, acceleration value that acceleration transducer 2 and weighing sensor 3 will test in real time and again
Amount data are transferred to Weighing indicator 4;
(4) data-signal of CPU module receiving step (2) and (3) of Weighing indicator 4 to weighing sensor 3 and accelerates
Degree sensor 2 crosses central point and along the length of suspender 1 according to the circumferential number clockwise of suspender 1, and using the central point of suspender 1 as origin
Spending direction to extend is x-axis, crosses central point and is y-axis along the extension of 1 width direction of suspender, establishes Load Model, such as Fig. 2;
(5) CPU module of Weighing indicator 4 passes through following formula according to the stress condition for the Load Model established
It is calculated, determines the dynamic unbalance loading value L of the lifting modified container 5 of post-accelerationx、LyAnd 5 weight M of container, it calculates public
Formula are as follows:
Following equation can be obtained according to mechanics and principle of moment balance:
G=F1+F2+F3+F4 (1.1)
Three formula simultaneous can solve:
Thus container 5 mass m and unbalance loading value l before obtaining without acceleration correctionx、lyIt is respectively as follows:
In formula, G is the weight of container 5, and g is acceleration of gravity, m/s2;M is the quality of container 5, m1、m2、m3、m4For
5 mass of container at 4 jiaos (suspension centres) that 4 weighing sensors 3 detect, kg or t;
F1, F2, F3, F45 weight of container at 4 jiaos (suspension centres) measured respectively for 4 weighing sensors 3;
The distance of A length direction between 5 vertical corner hole of container, for 20 forty equivalent unit 40s 5, A=5853mm;For 40
Forty equivalent unit 40 5, A=11985mm;
B is the distance of length direction between the lateral corner apertures of container 5, for 20 feet and 40 forty equivalent unit 40s 5, B=
2259mm;
LxUnbalance loading amount for 5 center of gravity of container in longitudinal direction (X-axis) direction, mm;
LyUnbalance loading amount for 5 center of gravity of container in transverse direction (Y-axis) direction, mm.
When suspender 1 does variable motion together with container 5, the power that weighing sensor 3 is subject to includes gravity and adds
Two parts of power caused by speed.Gravity in order to obtain is needed to subtract acceleration from the total power that weighing sensor 3 is subject to and be caused
Power:
G0=G-Ga (1.8)
In formula: G0For container 5 weight to the active force of weighing sensor 3;
G is the weight of container 5;
GaIt is that speed change acceleration a causes container 5 to the active force of acceleration transducer 2 after lifting by crane;
G0=mg (1.9)
Ga=ma (1.10)
A is speed change acceleration;
Formula (1.10) and formula (1.9) are substituted into formula (1.8) and obtain formula (1.11) after arranging:
M=G/ (g+a) formula (1.11)
Therefore, 5 mass M of container detected after accelerated degree amendment and unbalance loading value L can be obtainedx、LyIt is respectively as follows:
Wherein:N is the quantity of acceleration transducer 2, aiFor i-th of acceleration sensing
The speed change acceleration value that device 2 detects.
Embodiment 2
The Super leaning load detection method of the present embodiment is realized by following steps:
(1) tested container 5 is lifted on the suspender 1 of gantry crane or front-handling mobile crane, and in suspender 1
Two opposite twist locks on (1,3 angle points in above-mentioned Fig. 2) 2 weighing sensors 3 are installed, 2, container of detection is diagonal
Stress condition;1 acceleration transducer 2 is respectively installed on the corresponding angle of each weighing sensor 3, the speed change after detection lifting adds
Speed.Acceleration transducer 2 and 3 output signal of weighing sensor pass through wireless signal transmitting terminal and this signal are emitted to wireless communication
Number receiving end, is connect by wireless telecommunications with Weighing indicator 4;
(2) weight data of container 5 at zero point is detected simultaneously by weighing sensor 3 when standing before container 5 lifts by crane
It is transferred to Weighing indicator 4;
(3) after container 5 lifts by crane, acceleration value that acceleration transducer 2 and weighing sensor 3 will test in real time and again
Amount data are transferred to Weighing indicator 4;
(4) data-signal of CPU module receiving step (2) and (3) of Weighing indicator 4 to weighing sensor 3 and accelerates
Degree sensor 2 crosses central point and along the length of suspender 1 according to the circumferential number clockwise of suspender 1, and using the central point of suspender 1 as origin
Spending direction to extend is x-axis, crosses central point and is y-axis along the extension of 1 width direction of suspender, establishes Load Model;
(5) CPU module of Weighing indicator 4 passes through following formula according to the stress condition for the Load Model established
It is calculated, determines the unbalance loading value L of the lifting modified dynamic container 5 of post-accelerationx、LyAnd 5 weight M of container, specifically
Are as follows:
5 mass M of container detected after accelerated degree amendment and unbalance loading value L can be obtainedx、LyIt is respectively as follows:
Acceleration transducer 2 used in above-described embodiment belongs to commercial product.Acceleration transducer 2 can be distributed 1,
It can be 2,3 or 4, piezoresistance type acceleration sensor the key technical indexes used can refer to following data:
Range: 0~10g;
Full-span output: ≮ 50mV
Temperature drift: < 1% within the scope of -40 DEG C~60 DEG C
Precision: (full scale) 10-2
Resonance frequency > 100Hz
Supply voltage: 12V (DC)
Output impedance: 1k Ω
Requirement for the selection of acceleration transducer 2, weighing sensor 3 is that low frequency response is good, high sensitivity, precision
Height, the linearity is good and can work normally in strong radiation environment.
Weighing sensor 3 and the number of acceleration transducer 2 can be numbered using clockwise when establishing Load Model,
It can be numbered counter-clockwise, on testing result without influence, in addition, referring to for weighing sensor 3 and acceleration transducer 2 with weighing
Show that the communication between device 4 belongs to routine techniques, therefore is not described in detail.
Claims (3)
1. a kind of dynamic hanging type overloading and unbalanced loading of container detection method, it is characterised in that: the following steps are included:
(1) tested container (5) is lifted on suspender (1), weighing sensor (3) is installed on the twist lock of suspender (1), are being claimed
Retransmit sensor (3) corresponding installation at least one acceleration transducer (2) nearby, acceleration transducer (2) and weighing sensor (3)
It is connect by wireless communication mode with Weighing indicator (4);
(2) container (5) is stood before lifting for zero point, and the weight of container (5) at zero point is detected by weighing sensor (3)
Data are simultaneously transferred to Weighing indicator (4);
(3) after container (5) are lifted by crane, acceleration value that acceleration transducer (2) and weighing sensor (3) will test in real time with
Weight data is transferred to Weighing indicator (4);
(4) data-signal of CPU module receiving step (2) and (3) of Weighing indicator (4) to weighing sensor (3) and accelerates
Degree sensor (2) is circumferentially numbered clockwise or counter-clockwise according to suspender (1), and using the central point of suspender (1) as origin, excessively in
Heart point and along suspender (1) length direction extension be x-axis, cross central point and along suspender (1) width direction extension be y-axis, build
Vertical Load Model;
(5) CPU module of Weighing indicator (4) according to the Load Model established stress condition, by following formula into
Row calculates, and determines the dynamic unbalance loading value L of the lifting modified container of post-acceleration (5)x、LyAnd container (5) weight M, it calculates
Formula are as follows:
Wherein:N is the quantity of acceleration transducer (2), aiFor i-th of acceleration transducer
(2) the speed change acceleration value detected;
G is the weight of container (5);
M is the quality of container (5), kg or t;
m1、m2... for the qualitative data of each weighing sensor (3) detection, kg or t;
G is acceleration of gravity, m/s2;
LxUnbalance loading amount for container (5) center of gravity in longitudinal X-direction, mm;
LyUnbalance loading amount for container (5) center of gravity in lateral Y direction, mm;
The distance of A length direction between container (5) vertical corner hole, mm;
B is the distance of length direction between container (5) lateral corner apertures, mm.
2. dynamic hanging type overloading and unbalanced loading of container detection method according to claim 1, it is characterised in that: the weighing passes
Sensor (3) is 2~4.
3. dynamic hanging type overloading and unbalanced loading of container detection method according to claim 2, it is characterised in that: the weighing passes
It when sensor (3) is 2, is mounted on two twist locks of suspender (1) relative angle, acceleration transducer (2) and weighing sensor one
One is corresponding, and m2=m4=0 or m1=m3=0.
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EP4119488A4 (en) * | 2020-03-09 | 2024-03-27 | Tadano Ltd. | Control device, terminal and calculation method |
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CN109110648B (en) * | 2018-10-16 | 2020-10-20 | 湖南三一港口设备有限公司 | Container unbalance loading detecting system |
CN109353937A (en) * | 2018-12-14 | 2019-02-19 | 上海宏英智能科技有限公司 | A kind of container front side weighing system of crane |
CN110501058A (en) * | 2019-09-26 | 2019-11-26 | 六安远大住宅工业有限公司 | Weighing system |
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