CN203132680U - Digital indication scale calibrating device - Google Patents
Digital indication scale calibrating device Download PDFInfo
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- CN203132680U CN203132680U CN 201320084080 CN201320084080U CN203132680U CN 203132680 U CN203132680 U CN 203132680U CN 201320084080 CN201320084080 CN 201320084080 CN 201320084080 U CN201320084080 U CN 201320084080U CN 203132680 U CN203132680 U CN 203132680U
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- scale
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- digital self
- digital indication
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Abstract
The utility model discloses a digital indication scale calibrating device, comprising a reaction frame which comprises a support zone for imbedding a scale surface of a digital indication scale; a pressing zone located above the support zone and provided with a jack for applying downward pressure to the support zone; a pressure detecting zone located above the pressing zone and provided with weighing sensors for measuring upward reaction force of the jack; and a display in electric connection with the weighing sensors and displaying values measured by the weighing sensors. In work, the jack of the pressing zone supports the scale surface, the jack applies pressure, the weighing sensors measure reaction force and the reaction force can be read through the display. The digital indication scale calibrating device is simple, is flexible to move and can complete test of a plurality of digital indication scales with no need of empty scaling or moving of heavy weights. The digital indication scale calibrating device can be used for detecting calibration work of a digital indication scale.
Description
Technical field
The utility model relates to the collimation technique in weighing apparatus metrological testing technology field, particularly digital self-indicating scale.
Background technology
The JJG539-1997 " digital self-indicating scale vertification regulation " that State Administration for Quality Supervision and Inspection and Quarantine formulates is all followed in the calibrating of present digital self-indicating scale, calibration.Regulation according to these rules, the gordian technique that digital self-indicating scale is examined and determine, calibrated is that reference material such as the counterweight with known quality is placed on the scale, whether the difference that calculating scale is measured mass value and counterweight nominal mass value exceeds the rules allowed band, thereby judge the metering performance of scale, test contents has weighing test, reperformance test, unbalance loading test, resolving ability test etc.
Corresponding to above-mentioned test, there are two kinds of measuring systems to realize now.A kind of is weight detecting, calibration system, namely adopts standard test weight, by a series of placement and reading, recording step, the performance of testing scale.But for the more big scale of range, if using the counterweight method of testing tests, then can all the more bother, be that two tons electronic scales is example to test a range for example: by the requirement of rules, finish whole test events totals and need move the 25.5 tons of weight groups' turnover scale faces of putting altogether, two people's continued operations must be with 3 hours, and the counterweight transportation cost is big, labour intensity is big, length consuming time; Can only under empty scale state, carry out test with existing method in addition, can not be applicable to the digital self-indicating scale (adding scale as waterworks ammonia, chlorine) that loaded-up, empty weigher all the year round can lack.Another kind is to utilize sensor to substitute counterweight to carry out calibrating, calibration, but these calibrating installations mostly relatively complicated, the device of structure because of reaction frame plasticity type become the numerical value that causes little float phenomenon obviously, the volume and weight of device is bigger, carry inconvenience, device itself can not directly use, need reequip tested scale body, and repacking might have influence on metering performance and the usability of tested scale, and be not quite similar for the method for modifying of the tested scale of different size, different model, modification difficulty is big, but generalization is not strong.
The utility model content
The technical problems to be solved in the utility model is: a kind of digital self-indicating scale calibrating installation is provided, and it does not adopt the mode of weight detecting to carry out the self-indicating scale calibration, but utilizes the characteristics of sensor energy detected pressures size itself to test and calibrate.
The solution that the utility model solves its technical matters is:
A kind of digital self-indicating scale calibrating installation comprises reaction frame, and described reaction frame comprises:
Supporting area, this zone is inserted for digital self-indicating scale scale face;
The district that exerts pressure, this zone is positioned on the supporting area, is provided with the lifting jack that can apply downward pressure to supporting area;
Pressure measurement district, this zone are positioned on the district that exerts pressure, and are provided with the LOAD CELLS of measuring the reacting force size that described lifting jack makes progress;
Display, itself and LOAD CELLS electrically connect, and the numerical value that LOAD CELLS is recorded shows.
As further improvement in the technical proposal, described reaction frame is " Contraband " shape, has upper arm and underarm, and described upper arm is flat to be stretched, and underarm is L-shaped, and upper arm connects with the upper end of being somebody's turn to do " L " shape.
As further improvement in the technical proposal, described underarm has the supporting salient point, and described supporting salient point is facing to the below of lifting jack.
As further improvement in the technical proposal, described upper arm is described LOAD CELLS, and this LOAD CELLS is the beam type LOAD CELLS.
As further improvement in the technical proposal, the underarm of described " L " shape has perpendicular section and crosspiece, and described crosspiece is the spring steel member.
The beneficial effects of the utility model are: during work, the supporting area of reaction frame is gathered to digital self-indicating scale, its scale face is kept flat in the supporting area, allow exert pressure the district lifting jack withstand the scale face, driving lifting jack then exerts pressure, because there is stopping of scale the below, thus lifting jack can upwards provide one with downforce equal and opposite in direction, direction opposite reaction, the size of this reacting force can be read from display after being measured by LOAD CELLS in real time.So, be applied to the jack pressure on the scale face, namely be equivalent to the counterweight weight that is added in the weight detecting calibration on the scale.The utility model device is simple, and is flexibly mobile, after the adaptive corresponding detection step, can finish multiple digital self-indicating scale verification tests such as weighing test, reperformance test, unbalance loading test, resolving ability test, and need not the sky scale or move heavy counterweight.The utility model can be used in the assay calibration work of digital self-indicating scale.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done simple declaration in will describing embodiment below.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than whole embodiment, and those skilled in the art can also obtain other design proposals and accompanying drawing according to these accompanying drawings under the prerequisite of not paying creative work.
Fig. 1 is structure principle chart of the present utility model, and wherein arrow is represented the direction of power;
Fig. 2 is the weigh schematic top plan view in when test of the utility model.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, feature and effect fully.Obviously; described embodiment is a part of embodiment of the present utility model, rather than whole embodiment, based on embodiment of the present utility model; other embodiment that those skilled in the art obtains under the prerequisite of not paying creative work all belong to the scope that the utility model is protected.In addition, all connection/annexations of mentioning in the literary composition are not to refer to that singly member directly joins, and refer to and can connect auxiliary by adding or reducing according to concrete performance, form more excellent draw bail.
With reference to Fig. 1, a kind of digital self-indicating scale calibrating installation comprises reaction frame, and described reaction frame comprises:
Supporting area, this zone is inserted for digital self-indicating scale scale face;
The district that exerts pressure, this zone is positioned on the supporting area, is provided with the lifting jack 1 that can apply downward pressure to supporting area;
Pressure measurement district, this zone are positioned on the district that exerts pressure, and are provided with the LOAD CELLS 2 of measuring the reacting force size that described lifting jack 1 makes progress;
Display, itself and LOAD CELLS 2 electrically connect, and the numerical value that LOAD CELLS 2 is recorded shows.
Be further used as preferred embodiment, described reaction frame is " Contraband " shape, has upper arm and underarm, and described upper arm is flat to be stretched, and underarm is L-shaped, and upper arm connects with the upper end of being somebody's turn to do " L " shape.
Be further used as preferred embodiment, described underarm has the supporting salient point, and described supporting salient point is facing to the below of lifting jack 1.The supporting salient point can allow stressed more concentrated, avoids when carrying out fixed test because the problem that the stress point that stressed position causes for different planes disperses.
Be further used as preferred embodiment, described upper arm is the beam type sensor of C6 level, and upper arm is described LOAD CELLS 2, precision height.This structure, simple, intuitive reduces complicated in mechanical structure and the measuring error that causes to greatest extent.
Be further used as preferred embodiment, the underarm of described " L " shape has perpendicular section and crosspiece, and described crosspiece is the spring steel member.Adopt spring steel as the material of underarm crosspiece, purpose is that the stroke of the lifting jack application of force is strengthened, and increases the handling of device to test value adjusting, and minimizing becomes the little phenomenon of floating of numerical value that causes because of reaction frame plasticity type.
Be the example that the utility model is weighed and tested below:
Be installed in position as Fig. 2 with one group of two device, numeral self-indicating scale 3 is inserted supporting area, be loaded on the weighing that minimum weighing, the limits of error change from zero point by ascending order, 50% maximum weighing, maximum weighing are offloaded to zero point with identical method.Pen recorder and tested digital self-indicating scale indicating value are obtained error.
Also have means of testing such as unbalance loading test, resolving ability test in addition, as long as the step during with reference to conventional counterweight test is suitably adjusted force application location and corresponding device quantity, cooperate suitable formula adjustment error, just can finish corresponding test.Because installation of the present utility model only need take fraction scale face area, so to the needs calibration but there is not the specific use scale of condition zero load, device also can be carried out in the use to full scale value scope at existing value it and tests.
More than preferred embodiments of the present utility model is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite of the utility model spirit, the modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (5)
1. digital self-indicating scale calibrating installation, it is characterized in that: comprise reaction frame, described reaction frame comprises:
Supporting area, this zone is inserted for digital self-indicating scale scale face;
The district that exerts pressure, this zone is positioned on the supporting area, is provided with the lifting jack (1) that can apply downward pressure to supporting area;
Pressure measurement district, this zone are positioned on the district that exerts pressure, and are provided with the LOAD CELLS (2) of measuring the reacting force size that described lifting jack (1) makes progress;
Display, itself and LOAD CELLS (2) electrically connect, and the numerical value that LOAD CELLS (2) is recorded shows.
2. digital self-indicating scale calibrating installation according to claim 1, it is characterized in that: described reaction frame is " Contraband " shape, has upper arm and underarm, and described upper arm is flat to be stretched, and underarm is L-shaped, and upper arm connects with the upper end of this " L " shape.
3. digital self-indicating scale calibrating installation according to claim 2, it is characterized in that: described underarm has the supporting salient point, and described supporting salient point is facing to the below of lifting jack (1).
4. digital self-indicating scale calibrating installation according to claim 2, it is characterized in that: described upper arm is described LOAD CELLS (2), and this LOAD CELLS (2) is the beam type LOAD CELLS.
5. digital self-indicating scale calibrating installation according to claim 2 is characterized in that: the underarm of described " L " shape has perpendicular section and crosspiece, and described crosspiece is the spring steel member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084080 CN203132680U (en) | 2013-02-22 | 2013-02-22 | Digital indication scale calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084080 CN203132680U (en) | 2013-02-22 | 2013-02-22 | Digital indication scale calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203132680U true CN203132680U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320084080 Expired - Lifetime CN203132680U (en) | 2013-02-22 | 2013-02-22 | Digital indication scale calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203132680U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043523A (en) * | 2015-05-20 | 2015-11-11 | 福建省计量科学研究院 | Large-scale weighing instrument calibrating apparatus with cantilever beam type force sensors |
| CN108444585A (en) * | 2018-03-15 | 2018-08-24 | 永康市华鹰衡器有限公司 | Forcing press |
-
2013
- 2013-02-22 CN CN 201320084080 patent/CN203132680U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043523A (en) * | 2015-05-20 | 2015-11-11 | 福建省计量科学研究院 | Large-scale weighing instrument calibrating apparatus with cantilever beam type force sensors |
| CN108444585A (en) * | 2018-03-15 | 2018-08-24 | 永康市华鹰衡器有限公司 | Forcing press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510660 No.12 Zhongshan 1st Road, Yuexiu District, Guangzhou, Guangdong Province Patentee after: Guangzhou Water Supply Co.,Ltd. Address before: 510600 Guangzhou water supply company, No. 12, Zhongshan Road, Guangzhou, Guangdong Patentee before: GUANGZHOU WATER SUPPLY CO. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |