CN106768254A - A kind of bunker scale calibrating installation and its calibration method - Google Patents

A kind of bunker scale calibrating installation and its calibration method Download PDF

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Publication number
CN106768254A
CN106768254A CN201611072671.4A CN201611072671A CN106768254A CN 106768254 A CN106768254 A CN 106768254A CN 201611072671 A CN201611072671 A CN 201611072671A CN 106768254 A CN106768254 A CN 106768254A
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CN
China
Prior art keywords
bunker scale
verification
tester
housing
jack
Prior art date
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Pending
Application number
CN201611072671.4A
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Chinese (zh)
Inventor
朱新民
那云龙
马云龙
高宇航
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CHENGDE ZHONGRUI AUTOMATION ENGINEERING Co Ltd
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CHENGDE ZHONGRUI AUTOMATION ENGINEERING Co Ltd
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Publication date
Application filed by CHENGDE ZHONGRUI AUTOMATION ENGINEERING Co Ltd filed Critical CHENGDE ZHONGRUI AUTOMATION ENGINEERING Co Ltd
Priority to CN201611072671.4A priority Critical patent/CN106768254A/en
Publication of CN106768254A publication Critical patent/CN106768254A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G23/00Auxiliary devices for weighing apparatus
    • G01G23/01Testing or calibrating of weighing apparatus

Abstract

The invention discloses a kind of bunker scale calibrating installation and its calibration method, belong to calibrator (-ter) unit technical field, it includes portal frame, bunker scale is sequentially provided with from the bottom to top in portal frame, jack and tester, tester includes verification housing, gravity sensor is provided with verification housing, gravity sensor connects upper contact head and lower contact respectively, upper contact head stretches out the top of verification housing and one jacking block of connection, offseted at the top of jacking block and portal frame, lower contact stretches out the bottom of verification housing and is connected with the piston rod of jack, display panel is installed on verification housing, display panel is provided with the verification display instrument being connected with gravity sensor, the control unit of connection gravity sensor is provided with verification housing, control unit is connected with display panel, power supply is provided with verification housing, power supply is electrically connected with control unit.The present invention solves existing bunker scale calibration difficulties, stated accuracy technical problem not high, is widely used in the demarcation of bunker scale.

Description

A kind of bunker scale calibrating installation and its calibration method
Technical field
The present invention relates to calibrator (-ter) unit technical field, and in particular to a kind of bunker scale calibrating installation and its calibration method.
Background technology
At present, the demarcation of bunker scale and calibration generally has three kinds of methods:One is to use standard test weight, the method stated accuracy Height, but need to devote a tremendous amount of time and manpower, and will the enough counterweights of uniform load on hopper (usual more than 30%), this Large-tonnage bunker scale is almost difficult to carry out;Two is to use Mechanical force ring, and the method stated accuracy is low, calculate complicated, practice In be difficult to carry out;Three is that the method operation is the most square using the parameter input method (exempting from loading to demarcate) based on digital weighing instrument Just, stated accuracy is general, but needs transformation electronic scale and ensure that force acting on transducer is balanced.
Although having all multi-vendor all in the demarcation for bunker scale and effort, never change its calibration difficulties, mark Determine precision defect not high.
Therefore, based on drawbacks described above, in calibrator (-ter) unit technical field, still suffer from studying and change for bunker scale calibrating installation The demand entered, this is also a study hotspot and emphasis in current calibrator (-ter) unit technical field, and the even more present invention is accomplished Starting point.
The content of the invention
It is an object of the invention to provide a kind of bunker scale calibrating installation, it is used to solve existing bunker scale calibration difficulties, mark Determine precision technical problem not high.
In order to solve the above technical problems, the technical scheme is that, there is provided a kind of bunker scale calibrating installation, including gantry Bunker scale, jack and tester are sequentially provided with frame, the portal frame from the bottom to top, the bunker scale is fixedly installed in described The bottom of portal frame, the cylinder body of the jack is connected with the weighing sensor of the bunker scale, the biography of weighing of the bunker scale Sensor connects weighing instrument, and the tester includes verification housing, gravity sensor, the gravity are provided with the verification housing Sensor connects upper contact head and lower contact respectively, and the upper contact head stretches out the top of the verification housing and one jacking block of connection, institute State and offseted at the top of jacking block and the portal frame, the lower contact stretch out the bottom of the verification housing and with the jack Piston rod is connected, and the upper contact head is coaxially disposed with lower contact, and display panel, the display are provided with the verification housing Panel is provided with the verification display instrument being connected with the gravity sensor, the connection gravity is provided with the verification housing and is passed The control unit of sensor, described control unit is connected with display panel, and power supply is provided with the verification housing, the power supply with Control unit is electrically connected.
As a kind of optimal technical scheme, the jack, tester, the central axes of bunker scale, and central shaft Line and horizontal plane.
As a kind of optimal technical scheme, verification gap, described thousand are provided between the jacking block and the verification housing Lower verification gap is provided between the piston rod and the verification housing on jin top.
As a kind of optimal technical scheme, fairlead is fixed with the top of the verification housing, the jacking block slides peace Loaded in the upper fairlead.
Used as a kind of optimal technical scheme, the bottom of the verification housing is fixed with lower fairlead, the work of the jack Stopper rod is slidably mounted in the lower fairlead.
In order to solve the above technical problems, the invention also discloses another technical scheme, there is provided a kind of bunker scale calibration cartridge The calibration method put, comprises the following steps:
(1) bunker scale, jack and tester are vertically installed in portal frame from the bottom to top successively, the bunker scale is consolidated Bottom of the Dingan County loaded on the portal frame, the cylinder body of the jack is connected with the weighing sensor of the bunker scale, the material The weighing sensor connection weighing instrument of bucket scale, the tester includes verification housing, gravity biography is provided with the verification housing Sensor, the gravity sensor connects upper contact head and lower contact respectively, the upper contact head stretch out the top of the verification housing and Connect a jacking block, offseted at the top of the jacking block and the portal frame, the lower contact stretch out it is described verification housing bottom and Piston rod with the jack is connected, and the upper contact head is coaxially disposed with lower contact, is provided with the verification housing aobvious Show panel, the display panel is provided with the verification display instrument being connected with the gravity sensor, is set in the verification housing There is the control unit for connecting the gravity sensor, described control unit is connected with display panel, set in the verification housing There is power supply, the power supply is electrically connected with control unit;
(2) bunker scale and tester are powered and are preheated 10 minutes;
(3) shown by tester, fine-adjustment jack, jacking block and bunker scale is held out against portal frame respectively, produce pretightning force;
Etc. (4) after the instrument display stabilization of display panel, by the weighing sensor of bunker scale and the gravity sensitive of tester Device zero setting;
(5) demarcation of the gravity sensor of tester is first carried out, further according to the weight that calibration should be loaded, calculating to load Weight, shows according to tester, the loading of even regulation jack;Tester shows required weight, with tester institute after stable Display weight demarcates the weighing sensor of bunker scale;
(6) weighing sensor of jack or loading, or unloading, Inspection display instrument and bunker scale is in each gear weight The value of amount, calculates the degree of accuracy of bunker scale;
(7) calibration is completed.
As a kind of optimal technical scheme, before step (4), the zero point correction of bunker scale, the scale body of bunker scale are carried out It is empty scale state, after stabilization, demarcation bunker scale is zero point.
As a kind of optimal technical scheme, in step (5), when demarcating the gravity sensor of tester, first, the is carried out The demarcation of one load(ing) point, now loads the counterweight demarcated to scale body, after stabilization, demarcates the first accurate counterweight value, and the value adds for first Loading point;Secondly, the second load(ing) point demarcation is carried out, to the counterweight that the loading of scale body is demarcated, after stabilization, demarcates the second accurate counterweight value, The value is the second load(ing) point.
Used as a kind of optimal technical scheme, the second accurate counterweight value is more than the first accurate counterweight value.
The invention has the advantages that:
(1) successively be vertically installed in portal frame from the bottom to top for bunker scale, jack and tester by the present invention, is easy to tear open Dress, small volume is easy to carry.
(2) because the reaction force for acting on the power on portal frame and being respectively acting on tester and bunker scale is theoretical On be equal, act on power on tester voltage signal be converted into by gravity sensor and transmit to verification display instrument, The gravimetric value of standard is shown in verification display instrument, and is acted on the power on bunker scale and voltage is converted into by weighing sensor Signal transmission shows actual gravimetric value to weighing instrument on weighing instrument, according to the principle of superposition comparison-type force measuring machine, leads to Cross that load is equally passed to different modes the gravity sensor of standard demarcated in advance and scene is calibrated bunker scale Weighing sensor, change traditional calibration method, be not only simple easy, and stated accuracy is high.
(3) due to being fixed with upper fairlead at the top of verification housing, the bottom for verifying housing is fixed with lower fairlead, limits The movement locus of jacking block and jack piston rod, it is ensured that jack, tester, the central axes of bunker scale, and then Improve stated accuracy of the invention.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of tester in the embodiment of the present invention.
Fig. 3 is operation principle block diagram of the invention.
In figure:1st, portal frame, 2, bunker scale, 3, jack, 301, piston rod, 4, tester, 401, verification housing, 402, Gravity sensor, 403, power supply, 404, display panel, 405, control unit, 406, verification display instrument, 407, wire, 5, top Block, 6, upper contact head, 7, lower contact, 8, upper fairlead, 9, lower fairlead, 10, upper verification gap, 11, lower verification gap.
Specific embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment one
As depicted in figs. 1 and 2, the invention provides a kind of bunker scale calibrating installation, including portal frame 1, in portal frame 1 by Under it is supreme be sequentially provided with bunker scale 2, jack 3 and tester 4, bunker scale 2 is fixedly installed in the bottom of portal frame 1, jack 3 Cylinder body be connected with the weighing sensor of bunker scale 2, the weighing sensor of bunker scale 2 connection weighing instrument, tester 4 includes school Housing 401 is tested, gravity sensor 402 is provided with verification housing 401, gravity sensor 402 connects upper contact head 6 and lower contact respectively 7, upper contact head 6 stretches out the top of verification housing 401 and one jacking block 5 of connection, and jacking block 5 offsets with the top of portal frame 1, lower contact 7 Stretch out the bottom of verification housing 401 and be connected with the piston rod 301 of jack 3, specifically, the end face and thousand of lower contact 7 The end face of the piston rod 301 on jin top 3 is offseted, and upper contact head 6 is coaxially disposed with lower contact 7, and display surface is provided with verification housing 401 Plate 404, display panel 404 is provided with the verification display instrument 406 being connected with the gravity sensor 402, in verification housing 401 The control unit 405 of connection gravity sensor 402 is provided with, control unit 405 is connected with display panel 404, control unit 405 Single-chip microcomputer can be selected, other microcomputer controllers can be selected, those skilled in the art can voluntarily select as needed, school Test and power supply 403 is provided with housing 401, power supply 403 is usually battery, and voltage dial gauge is generally set on display panel 404, when During storage battery under-voltage, voltage dial gauge can be generate and alert indicate that, power supply 403 is electrically connected with control unit 405 by wire 407, When battery charging complete, voltage dial gauge can point out overload, to ensure the service life of battery.
Jack 3, tester 4, the central axes of bunker scale 2, and central axis and horizontal plane, can more enter The raising calibration accuracy of one step, and it is easy to dismounting, small volume is easy to carry.
Embodiment two
As depicted in figs. 1 and 2, the invention provides a kind of bunker scale calibrating installation, its structure and the basic phase of embodiment one Together, its difference is to be provided with verification gap 10 between jacking block 5 and verification housing 401, to avoid jacking block 5 with verification housing 401 Collide and influence stated accuracy, lower verification gap 11 is provided between the piston rod 301 and verification housing 401 of jack 3, to keep away Exempt from piston rod 301 to collide and influence stated accuracy with verification housing 401, the top for verifying housing 401 is fixed with fairlead 8, jacking block 5 is column structure, and the internal diameter of upper fairlead 8 is adapted with the external diameter of jacking block 5, and jacking block 5 is slidably mounted on fairlead 8 Interior, to ensure the motion track of jacking block 5 and the central coaxial of tester 4, the bottom for verifying housing 401 is fixed with lower fairlead 9, The internal diameter of lower fairlead 9 is adapted with the external diameter of the piston rod 301 of jack 3, and the piston rod 301 of jack 3 is slidably mounted on In lower fairlead 9, to ensure the motion track of the piston rod 301 of jack 3 and the central coaxial of tester 4.This set, can To cause the central axes of jack 3, tester 4, bunker scale 2, and central axis and horizontal plane, further improve Calibration accuracy.Embodiment three
The invention discloses a kind of calibration method of bunker scale calibrating installation, comprise the following steps:
(1) bunker scale 2, jack 3 and tester 4 are vertically installed in portal frame 1 from the bottom to top successively, bunker scale 2 The bottom of portal frame 1 is fixedly installed in, the cylinder body of jack 3 is connected with the weighing sensor of bunker scale 2, bunker scale 2 is weighed Sensor connects weighing instrument, and tester 4 includes verification housing 401, gravity sensor 402, gravity are provided with verification housing 401 Sensor 402 connects upper contact head 6 and lower contact 7 respectively, and upper contact head 6 stretches out the top of verification housing 401 and one jacking block 5 of connection, Jacking block 5 offsets with the top of portal frame 1, lower contact 7 stretch out verification housing 401 bottom and with the phase of piston rod 301 of jack 3 Connection, specifically, the end face of lower contact 7 offsets with the end face of the piston rod 301 of jack 3, and upper contact head 6 is same with lower contact 7 Axle is set, and display panel 404 is provided with verification housing 401, and display panel 404 is provided with what is be connected with gravity sensor 402 Verification display instrument 406, verification housing 401 in be provided with connection gravity sensor 402 control unit 405, control unit 405 with Display panel 404 is connected, and power supply 403 is provided with verification housing 401, and power supply 403 is usually battery, on display panel 404 Voltage dial gauge is generally set, and when storage battery under-voltage, voltage dial gauge can generate and alert indicate that, power supply 403 and control unit 405 electrical connections;
(2) bunker scale 2 and tester 4 are powered and are preheated 10 minutes so that each electronic component reaches normal condition;
(3) shown by tester 4, fine-adjustment jack 3, jacking block 5 and bunker scale 2 is held out against portal frame 1 respectively, produced pre- Clamp force;
Etc. (4) after the instrument display stabilization of display panel 404, by the weighing sensor of bunker scale 2 and the gravity of tester 4 The zero setting of sensor 402;
(5) demarcation of the gravity sensor 402 of tester 4 is first carried out, further according to the weight that calibration should be loaded, calculating should Loaded weight, shows that even regulation jack 3 is loaded according to tester 4;Tester 4 shows required weight, with school after stable Test the weighing sensor that weight shown by instrument 4 demarcates bunker scale 2;
(6) jack 3 or loading, or unloading, the weighing sensor of Inspection display instrument 406 and bunker scale 2 is each The value of gear weight, calculates the degree of accuracy of bunker scale 2;
(7) calibration is completed.
During field adjustable, general bunker scale can all have three or four weighing sensors, corresponding, it is also desirable to be equipped with three Individual or four jack and tester, are used in groups so that each angle of bunker scale is calibrated, to improve the school of bunker scale Quasi- precision.
As shown in figure 3, being loaded using jack 3, act on the power on portal frame 1 and be respectively acting on the He of tester 4 Reaction force on bunker scale 2 is theoretically equal, and the power acted on tester 4 is converted into by gravity sensor 402 Voltage signal is transmitted to verification display instrument 406, and the gravimetric value of standard is shown in verification display instrument 406, and acts on material Power on bucket scale 2 is converted into voltage signal and transmits to weighing instrument by weighing sensor, and reality is shown on weighing instrument Gravimetric value, load according to the principle of superposition comparison-type force measuring machine, equally passed to by different modes and demarcated in advance Standard gravity sensor 402 and scene be calibrated the weighing sensor of bunker scale 2.The gravity sensor 402 of standard is supporting Verification display instrument 406 on show weight be exactly to be calibrated the weight that the weighing sensor of bunker scale 2 is loaded, with this come Field calibration bunker scale 2.
Example IV:
The invention discloses a kind of calibration method of bunker scale calibrating installation, its step is essentially identical with embodiment three, its Difference is:
Before step (4), the zero point correction of bunker scale 2 is carried out, now the scale body of bunker scale 2 is empty scale state, stabilization Afterwards, it is zero point to demarcate bunker scale 2, and the operation after being determines benchmark, is easy to calculate and loads.
In step (5), when demarcating the gravity sensor 402 of tester 4, generally rectified using multi-spot segmentation formula is non-linear Just, so that correct as an example, first, the first load(ing) point demarcation is carried out at 2 points, the counterweight now demarcated to the loading of scale body, after stabilization, mark Fixed first accurate counterweight value, the value is the first load(ing) point;Secondly, the second load(ing) point demarcation is carried out, to the weight that the loading of scale body is demarcated Code, after stabilization, demarcates the second accurate counterweight value, and the value is the second load(ing) point.In order to improve the accuracy of demarcation, it is necessary to accomplish It is that the second accurate counterweight value is more than the first accurate counterweight value.By using the first load(ing) point and the second load(ing) point, can be more accurate Really the accuracy of the weighing sensor of checking bunker scale 2, improves performance of the invention.
Although the present invention is described in detail above to have used general explanation and specific embodiment, at this On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.

Claims (9)

1. a kind of bunker scale calibrating installation, the bunker scale calibrating installation include in portal frame, the portal frame from the bottom to top according to It is secondary to be provided with bunker scale, jack and tester, it is characterised in that the bunker scale is fixedly installed in the bottom of the portal frame, The cylinder body of the jack is connected with the weighing sensor of the bunker scale, the weighing sensor connection weighing instrument of the bunker scale Table, the tester includes verification housing, and gravity sensor is provided with the verification housing, and the gravity sensor is connected respectively Upper contact head and lower contact, the upper contact head stretch out the top of the verification housing and one jacking block of connection, the jacking block and the dragon Offseted at the top of door frame, the lower contact stretches out the bottom of the verification housing and is connected with the piston rod of the jack, The upper contact head is coaxially disposed with lower contact, and display panel is provided with the verification housing, the display panel be provided with The verification display instrument of the gravity sensor connection, is provided with the control list for connecting the gravity sensor in the verification housing Unit, described control unit is connected with display panel, and power supply is provided with the verification housing, and the power supply is electrically connected with control unit Connect.
2. bunker scale calibrating installation as claimed in claim 1, it is characterised in that in the jack, tester, bunker scale Heart axis overlaps, and central axis and horizontal plane.
3. bunker scale calibrating installation as claimed in claim 1 or 2, it is characterised in that the jacking block and the verification housing it Between be provided with verification gap, lower verification gap is provided between the piston rod of the jack and the verification housing.
4. bunker scale calibrating installation as claimed in claim 3, it is characterised in that be fixed with the top of the verification housing and led To set, the jacking block is slidably mounted in the upper fairlead.
5. bunker scale calibrating installation as claimed in claim 3, it is characterised in that the bottom of the verification housing is fixed with down leads To set, the piston rod of the jack is slidably mounted in the lower fairlead.
6. a kind of calibration method of bunker scale calibrating installation, it is characterised in that the described method comprises the following steps:
(1) bunker scale, jack and tester are vertically installed in portal frame from the bottom to top successively, the bunker scale fixes peace Bottom loaded on the portal frame, the cylinder body of the jack is connected with the weighing sensor of the bunker scale, the bunker scale Weighing sensor connection weighing instrument, the tester include verification housing, be provided with gravity sensor in the verification housing, The gravity sensor connects upper contact head and lower contact respectively, and the upper contact head stretches out the top of the verification housing and connection one Jacking block, offsets at the top of the jacking block and the portal frame, the lower contact stretch out it is described verification housing bottom and with it is described The piston rod of jack is connected, and the upper contact head is coaxially disposed with lower contact, and display panel is provided with the verification housing, The display panel is provided with the verification display instrument being connected with the gravity sensor, and connection institute is provided with the verification housing The control unit of gravity sensor is stated, described control unit is connected with display panel, be provided with power supply in the verification housing, institute State power supply to be electrically connected with control unit, the demarcation of the gravity sensor of tester is first carried out in a pre-installation;
(2) bunker scale and tester are powered and are preheated 10 minutes;
(3) shown by tester, fine-adjustment jack, jacking block and bunker scale is held out against portal frame respectively, produce pretightning force;
Etc. (4) after the instrument display stabilization of display panel, the gravity sensor of the weighing sensor of bunker scale and tester is put Zero;
(5) demarcation of the gravity sensor of tester is first carried out, further according to the weight that calibration should be loaded, calculating should load weight Amount, shows according to tester, the loading of even regulation jack;Tester shows required weight, is shown with tester after after stabilization Show that weight demarcates the weighing sensor of bunker scale;
(6) weighing sensor of jack or loading, or unloading, Inspection display instrument and bunker scale is in each gear weight Value, calculates the degree of accuracy of bunker scale;
(7) calibration is completed.
7. the calibration method of bunker scale calibrating installation as claimed in claim 6, it is characterised in that before step (4), carry out The zero point correction of bunker scale, the scale body of bunker scale is empty scale state, and after stabilization, demarcation bunker scale is zero point.
8. the calibration method of bunker scale calibrating installation as claimed in claim 7, it is characterised in that in step (5), demarcates school When testing the gravity sensor of instrument, first, the first load(ing) point demarcation is carried out, to the counterweight that the loading of scale body is demarcated, after stabilization, demarcate the One accurate counterweight value, the value is the first load(ing) point;Secondly, the second load(ing) point demarcation is carried out, the counterweight demarcated is loaded to scale body, surely After fixed, the second accurate counterweight value is demarcated, the value is the second load(ing) point.
9. the calibration method of bunker scale calibrating installation as claimed in claim 8, it is characterised in that the second accurate counterweight value is more than First accurate counterweight value.
CN201611072671.4A 2016-11-28 2016-11-28 A kind of bunker scale calibrating installation and its calibration method Pending CN106768254A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN111854913A (en) * 2020-07-20 2020-10-30 洛阳卡瑞起重设备有限公司 Five-point calibration method based on load lifting limiter

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Publication number Priority date Publication date Assignee Title
JP2004198149A (en) * 2002-12-17 2004-07-15 Yamato Scale Co Ltd Load detecting apparatus
CN2861988Y (en) * 2006-01-06 2007-01-24 莱芜钢铁集团有限公司 Hopper weight fast checking device
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