CN108387303A - A kind of container bare weight case testing agency being installed on lifting spreader - Google Patents
A kind of container bare weight case testing agency being installed on lifting spreader Download PDFInfo
- Publication number
- CN108387303A CN108387303A CN201810377619.2A CN201810377619A CN108387303A CN 108387303 A CN108387303 A CN 108387303A CN 201810377619 A CN201810377619 A CN 201810377619A CN 108387303 A CN108387303 A CN 108387303A
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- CN
- China
- Prior art keywords
- acquisition device
- type platform
- pressure
- platform sling
- pressure acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims 1
- 239000004677 Nylon Substances 0.000 abstract description 3
- 229920001778 nylon Polymers 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 6
- 238000010008 shearing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009662 stress testing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
- G01G19/18—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads having electrical weight-sensitive devices
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of container bare weight case testing agencies being installed on lifting spreader, lifting spreader includes spreader body, it is connected to the L-type platform sling of the corner of spreader body bottom four, and it is lifted on the rectangular hanger on four L-type platform slings, it is fixedly installed pressure acquisition device on the upper surface of four L-type platform sling horizontal components, pressure acquisition device includes the load bearing being fixedly connected on L-type platform sling horizontal component and two pressure sensors being set on load bearing, two pressure sensors of each pressure acquisition device are connect with external detection host.The original nylon cushion pad of lifting spreader is substituted for pressure acquisition device by the present invention, the structure of original suspender is not changed, and type platform sling is when slinging hanger, pressure acquisition device is placed between hanger and L-type platform sling horizontal component, it can't collide with other assemblies or equipment, to increase its service life.
Description
Technical field
The present invention relates to container loading detection field, specifically a kind of container being installed on lifting spreader
Bare weight case testing agency.
Background technology
Currently, the detection of container bare weight case is using installation F-TR pulling force sensors and F-TR on container spreader
Pressure sensor.But they all exist it is difficult to install, need by suspender F-TR lock remove completely, re-replace and be specifically manufactured
F-TR pulling force sensors or F-TR pressure sensors.And in use, due to the rocking, collide etc. of equipment, F-TR
Pulling force sensor or F-TR pressure sensors are often damaged, and cause entire detecting system that can not normally detect use.
Invention content
The technical problem to be solved in the present invention is to provide a kind of container bare weight casees being installed on lifting spreader
Testing agency, it is simple in structure, it is easy for installation, and be hardly damaged, service life is long.
The technical scheme is that：
A kind of container bare weight case testing agency being installed on lifting spreader, the lifting spreader
Include spreader body, be connected to the L-type platform sling and rectangular hanger of the corner of spreader body bottom four, the rectangle
Hanger is lifted on four L-type platform slings of spreader body, and fixation is set on the upper surface of described four L-type platform sling horizontal components
It is equipped with pressure acquisition device, the pressure acquisition device includes the load branch being fixedly connected on L-type platform sling horizontal component
Seat and two pressure sensors being set on load bearing, two pressure sensors of each pressure acquisition device with it is external
Detection host connection.
The pressure sensor selects spoke type pressure sensor.
Two sensors of each pressure acquisition device are connect with data acquisition module, data acquisition
Module passes sequentially through amplifying circuit of analog signal, A/D conversion modules are connect with detection host.
The load bearing of the pressure acquisition device is welded on the upper surface of L-type platform sling horizontal component.
Advantages of the present invention：
It is provided with nylon cushion pad, this hair on the upper surface of its L-type platform sling horizontal component of original lifting spreader
The bright pressure acquisition device for inventing original nylon cushion pad alternative costs, does not change the structure of original suspender, not shadow yet
The normal use of suspender is rung, and pressure acquisition device is set to the upper surface of L-type platform sling horizontal component, L-type platform sling slings hanger
When, pressure acquisition device is placed between hanger and L-type platform sling horizontal component, can't be touched with other assemblies or equipment
It hits, to increase its service life；The present invention carries out comparative analysis and obtains collection by the pressure measuring value at hanger difference turning
Gross weight, weighting and the unbalance loading situation of vanning.
Description of the drawings
Fig. 1 is the structural schematic diagram that the present invention is installed on lifting spreader.
Fig. 2 is the structural schematic diagram of pressure acquisition device of the present invention.
Fig. 3 is the principle of the present invention block diagram.
Fig. 4 is the mechanical model schematic diagram of pressure sensor of the present invention.
Fig. 5 is the stress distribution schematic diagram of pressure sensor of the present invention.
Fig. 6 is the circuit diagram of Wheatstone bridge in pressure sensor of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of container bare weight case testing agency being installed on lifting spreader, lifting spreader include
Spreader body 1, the L-type platform sling 2 and rectangular hanger 3 for being connected to spreader body 1 bottom four corner, rectangular hanger 3 lift
In on four L-type platform slings 2 of spreader body, pressure acquisition is fixedly installed on the upper surface of four 2 horizontal components of L-type platform sling
Device 4, pressure acquisition device 4 include that the load bearing 41 being welded on 2 horizontal component upper surface of L-type platform sling and being set to is held
Two pressure sensors 42 on power bearing 41, two pressure sensors 41 of each pressure acquisition device are and data acquisition module
Block 5 connects, and data acquisition module 5 passes sequentially through amplifying circuit of analog signal 6, A/D conversion modules 7 are connect with detection host 8.
Wherein, pressure sensor 41 selects spoke type pressure sensor, sensor accuracy:0.1%, detection range:10kg
~20000kg, complete machine accuracy of detection:0.5~0.7%, operating temperature:-20℃-+60℃.
Pressure acquisition device 4 of the present invention acquires the pressure measuring value at different turnings, and Stress testing loss leads to data acquisition successively
Module 5, amplifying circuit of analog signal 6, A/D conversion modules 7, which carry out being sent to detection host 8 after processing conversion, carries out analysis ratio
Compared with obtaining gross weight, weighting and the unbalance loading situation of container.
Analyze one mechanics principle in 4 two pressure sensors 41 of pressure acquisition device (another is just the same).
Pressure sensor can be simplified to both ends stress concentrfated load shear beam or pillar beam, mechanical model schematic diagram 4.
The Stress calculation of intermediate stress load effect：
The shear stress of beam and shearing strain calculate：
Shear beam sensor generally adds two blind holes (being partially formed I-beam), shear stress in the inflection point of strain beam
It can be calculated with Nikolay Zhuravsky formula：
Strain zone position and stress distribution such as Fig. 5 of local structural I-beam such as show.
In above formula:Shear QCut static moment S of the section to axisy：Shearing section
To the moments of inertia J of axisy：
Then
The principal stress and principal strain in 45 ° of directions calculate, and the length variation of spool directional pressure at 45 °, exactly pure along beam
Principal direction of stress under shearing force state, principal stress and maximum shear stress, principal strain and maximum shear strain in following relationship：
Sensitivity in Pressure Sensors calculates：
In formula：K-- resistance strain gage sensitivity coefficients.
Sensor core circuit -- resistance bridge：
The measuring circuit of design is wheatstone bridge circuits, abbreviation measuring bridge.Measuring bridge due to high sensitivity,
The advantages that measurement range is wide, circuit structure is simple, precision is high, temperature-compensating easy to implement, therefore strain can be met well and surveyed
The requirement of amount.
Electric bridge is divided to two kinds of direct-current bridge and AC bridge according to the property of power supply, and when Ui is direct current, the electric bridge is direct current
Bridge, bridge circuit are as shown in Figure 6.
R is foil gauge impedance, and sensor will produce deformation when by outer force effect, cause to be tightly attached in sensor
Foil gauge impedance on portion's wall linearly increaseds or decreases.In the case where there is externally fed (3~12VDC), the differential levels of output
The also linearly increasing reduction of mv signals, after sensor is by a group bridge, zeroing, trim sensitivity, temperature compensation etc., signal=confession of output
Piezoelectric voltage x sensitivity, such as regulated power supply are 10VDC, and transducer sensitivity is 1.5mv/V, is exported when sensor is to full scale
Voltage=10x1.5=15mv, if necessary to 0-5V (4-20mA etc.) standard analog signal need match signal adapter (pick-up
Device).
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of container bare weight case testing agency being installed on lifting spreader, it is characterised in that：The packaging
Case special hanger includes spreader body, is connected to the L-type platform sling and rectangular hanger of the corner of spreader body bottom four,
The rectangular hanger is lifted on four L-type platform slings of spreader body, the upper surface of described four L-type platform sling horizontal components
On be fixedly installed pressure acquisition device, the pressure acquisition device includes to be fixedly connected on L-type platform sling horizontal component
On load bearing and two pressure sensors being set on load bearing, two pressure sensings of each pressure acquisition device
Device is connect with external detection host.
2. a kind of container bare weight case testing agency being installed on lifting spreader according to claim 1,
It is characterized in that：The pressure sensor selects spoke type pressure sensor.
3. a kind of container bare weight case testing agency being installed on lifting spreader according to claim 1,
It is characterized in that：Two sensors of each pressure acquisition device are connect with data acquisition module, and the data are adopted
Collection module passes sequentially through amplifying circuit of analog signal, A/D conversion modules are connect with detection host.
4. a kind of container bare weight case testing agency being installed on lifting spreader according to claim 1,
It is characterized in that：The load bearing of the pressure acquisition device is welded on the upper surface of L-type platform sling horizontal component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377619.2A CN108387303B (en) | 2018-04-25 | 2018-04-25 | Container empty and heavy box detection mechanism mounted on container special lifting appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377619.2A CN108387303B (en) | 2018-04-25 | 2018-04-25 | Container empty and heavy box detection mechanism mounted on container special lifting appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108387303A true CN108387303A (en) | 2018-08-10 |
| CN108387303B CN108387303B (en) | 2024-06-04 |
Family
ID=63065807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810377619.2A Active CN108387303B (en) | 2018-04-25 | 2018-04-25 | Container empty and heavy box detection mechanism mounted on container special lifting appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108387303B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2251661A2 (en) * | 2009-05-15 | 2010-11-17 | Brosa AG | Force measuring device |
| JP2011080801A (en) * | 2009-10-05 | 2011-04-21 | Yamato Scale Co Ltd | Hanging scale |
| CN201819728U (en) * | 2010-03-03 | 2011-05-04 | 郑州恒科实业有限公司 | Container overload and unbalance-load detecting and weighing system device |
| CN106017753A (en) * | 2016-08-03 | 2016-10-12 | 李�诚 | Intelligent detection system for container F-TR lock disengagement |
| CN106644227A (en) * | 2017-02-13 | 2017-05-10 | 李�诚 | Intelligent detection system for ordinary gantry crane container F-TR lock |
| CN208282919U (en) * | 2018-04-25 | 2018-12-25 | 江苏泰力机械科技有限公司 | A kind of container bare weight case testing agency being installed on lifting spreader |
-
2018
- 2018-04-25 CN CN201810377619.2A patent/CN108387303B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2251661A2 (en) * | 2009-05-15 | 2010-11-17 | Brosa AG | Force measuring device |
| DE102009022343A1 (en) * | 2009-05-15 | 2010-12-02 | Brosa Ag | Force measuring system for measuring shear or compressive forces, especially in spreaders |
| JP2011080801A (en) * | 2009-10-05 | 2011-04-21 | Yamato Scale Co Ltd | Hanging scale |
| CN201819728U (en) * | 2010-03-03 | 2011-05-04 | 郑州恒科实业有限公司 | Container overload and unbalance-load detecting and weighing system device |
| CN106017753A (en) * | 2016-08-03 | 2016-10-12 | 李�诚 | Intelligent detection system for container F-TR lock disengagement |
| CN106644227A (en) * | 2017-02-13 | 2017-05-10 | 李�诚 | Intelligent detection system for ordinary gantry crane container F-TR lock |
| CN208282919U (en) * | 2018-04-25 | 2018-12-25 | 江苏泰力机械科技有限公司 | A kind of container bare weight case testing agency being installed on lifting spreader |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108387303B (en) | 2024-06-04 |
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