CN202166472U - Automatic calibration device for hopper scale - Google Patents
Automatic calibration device for hopper scale Download PDFInfo
- Publication number
- CN202166472U CN202166472U CN2011202592443U CN201120259244U CN202166472U CN 202166472 U CN202166472 U CN 202166472U CN 2011202592443 U CN2011202592443 U CN 2011202592443U CN 201120259244 U CN201120259244 U CN 201120259244U CN 202166472 U CN202166472 U CN 202166472U
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- sensor
- hopper
- lifting jack
- shelf
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Abstract
The utility model discloses an automatic calibration device for hopper scale. The device includes a hopper, a shelf, a frame, a weighing instrument, a lifting jack, a first sensor and a second sensor. The lifting jack is disposed above the shelf in an inverted manner and presses against the first sensor arranged on the surface of the shelf. At the same time, the pressure exerted by the lifting jack is transmitted to the weighing instrument through the second sensor between the hopper and the frame. The weight value displayed on the weighing instrument is the weight loaded in calibrating the hopper scale. The automatic calibration device for the hopper scale in the utility model is simple, quick and conveniently, and can meet requirements of hopper scale calibration of production field and production techniques. The automatic calibration device for the hopper scale in the utility model has advantages of saving time and labor power.
Description
Technical field
The utility model relates to the measurement instrument field, relates in particular to a kind of bunker scale automatic check device that is used for field of metallurgy.
Background technology
Continuous lifting along with the metallurgical automation degree; Hopper electronic scales (hereinafter to be referred as bunker scale) automatic, quick, metering to large bulk cargo is used widely; For guaranteeing the weighing accuracy of bunker scale, regularly calibration is very important to bunker scale with standard weights.In general, the calibration of bunker scale is that the counterweight with standard quality is loaded on the sensor of bunker scale through bunker scale scale body, makes the demonstration weight of sensor output signal on weighting display instrument of bunker scale identical with the loading standard weights.
Standard weights adopts usually by the alternative weight of various ways such as link code, chain code, circulating chain code, material object and realizes in the routine work; But considerable bunker scale is owing to reasons such as structural design, installation site and space sizes in the production scene; Often do not reach during calibration standard-required calibration weight minimum value and influence the calibration effect; Influence the accuracy of bunker scale, can't satisfy the requirement of production technology development.Except test format in kind, other is the simulated calibration mode, so in the occasion that can adopt the verification of standard quality counterweight according to bunker scale, do not advocate and select detection mode in kind, to reach the purpose of accurate stated accuracy.For the precision of hopper in guaranteeing to use, be furnished with some grade standard counterweights according to measurement range, be convenient to check at any time the precision of bunker scale in the use; The principle of work of bunker scale is to use the counterweight that is equipped with as check block, counterweight is placed on the hopper shelf suitable for reading, counterweight add put many more; The pressure that hopper bears is big more, and hopper end opening placed around has sensor, and sensor converts weight signal to electric signal and is sent on the weighting display instrument; Displaying Meter is through after the measurement processing; On display screen, demonstrate weight data, obtain dynamic, static weighing value, so that add up, compare and inquiry; Wait for verified, take off counterweight from hopper shelf suitable for reading successively again.
In sum, when bunker scale is carried out verification, for the bigger weighing device of measurement range; Need a large amount of counterweights during verification, moving into to take out of needs lot of manpower and material resources, and verification is low with duration, efficient; The need of work repetitive operation, security is not high yet in the operating process.
The utility model content
The technical matters that the utility model will solve is to the defective that exists in the prior art, and a kind of simple, quick, time saving and energy saving bunker scale automatic check device is provided.
In order to overcome the defective that exists in the background technology; The utility model solves the technical scheme that its technical matters adopted: a kind of bunker scale automatic check device; Said bunker scale automatic check device comprises hopper, shelf, framework, weighing instrument, lifting jack, first sensor and second sensor, and said first sensor is arranged on said shelf surface, and said lifting jack compresses said first sensor; Said hopper supports said shelf; Said second sensor is arranged between said hopper and the said framework, contacts with said framework with said hopper respectively, and electrically connects with said weighing instrument.
In a preferred embodiment of the utility model, said first sensor and said second sensor are resistance strain type sensor.
In a preferred embodiment of the utility model, said lifting jack is spiral lifting jack, and it is upside down on the said framework.
In a preferred embodiment of the utility model, said framework is grooved or case type structures.
In a preferred embodiment of the utility model, the quantity of said second sensor is four, and it contacts with the outside surface of said hopper respectively.
The utility model has solved the defective that exists in the background technology; Having solved the production scene needs multiple person cooperational that the verification counterweight is brought up to move down; Verification is with duration, inefficient problem, and the utility model only needs the people just can complete operation according to produced on-site technology, not only makes things convenient for but also quick.
Description of drawings
Fig. 1 is the structural representation of the utility model bunker scale automatic check device one preferred embodiment;
Fig. 2 is the partial schematic sectional view of bunker scale automatic check device shown in Figure 1;
Fig. 3 is the partial schematic sectional view of bunker scale automatic check device shown in Figure 2 along the A-A direction.
Wherein: 1, hopper; 2, shelf; 3, framework; 4, weighing instrument; 5, lifting jack; 6, first sensor; 7, second sensor; 8, position-limit mechanism; 9, top lifting mechanism.
Embodiment
Combine accompanying drawing and preferred embodiment that the utility model is done further detailed explanation now.These accompanying drawings are the synoptic diagram of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
See also Fig. 1, a kind of bunker scale automatic check device of introducing in the present embodiment comprises hopper 1, shelf 2, framework 3, weighing instrument 4, lifting jack 5, first sensor 6 and second sensor 7.In the utility model bunker scale automatic check device; Lifting jack 5 adopts sped structure, is upside down in shelf 2 tops, and first sensor 6 adopts the little resistance strain type sensor of composition error; Be arranged on said shelf 2 surfaces; The workplace that 5 pairs of shelves 2 of lifting jack are exerted pressure guarantees lifting jack 5 applied pressures within the specific limits through compressing first sensor 6, damages the hopper 1 of a staked shelf 2 with antioverloading.Lifting jack 5 applied pressures are through shelf 2; Be delivered on the hopper 1 of a staked shelf 2; Being installed in framework 3 then contacts with hopper 1 outside surface with second sensor 7 between the hopper 1; Second sensor 7 electrically connects with weighing instrument 4, and so that weight information is passed to weighing instrument 4 simultaneously, the weight that shows on the weighing instrument 4 is the weight that the verification bunker scale is loaded.
See also Fig. 2, when lifting jack 5 is exerted pressure, require framework 3 that enough rigidity are arranged, can not produce obvious variation, so framework 3 adopts grooved or case type structures, bulk deformation is less than 0.1mm (millimeter).Consider hopper 1 sometimes under big external impacts, possibly cause the rotation and the horizontal displacement of hopper 1 self, so four jiaos quadruplet position-limit mechanism 8 is housed at hopper 1 outer wall; 2mm (millimeter) is left in gap between position-limit mechanism 8 and the hopper 1; When hopper 1 caused displacement greater than 2mm because of external impacts, position-limit mechanism 8 will limit hopper 1 to be continued to move, after external force disappears; According to stability principle, hopper 1 will be got back to original settling position automatically.When lifting jack 5 and first sensor 6 need system debug or throw off, for ease of installation, debugging and ordinary maintenance maintenance, near lifting jack 5, be provided with top lifting mechanism 9, can lifting jack 5 be sling by means of lifting appliance, carry out unloading operation.
See also Fig. 3, in the present embodiment, second sensor 7 that contacts with hopper 1 is used for force measurement; The same little resistance strain type sensor of composition error that adopts, the force measurement of the utility model bunker scale automatic check device is accomplished by three or four second sensors 7, is example with four second sensors 7; These four second sensors 7 are bearing in four jiaos of hopper 1; The stressed of second sensor 7 can carry out equilibrium through adjustment, and parallel way is adopted in the output of four second sensors 7, has so not only improved measuring accuracy; And having strengthened antijamming capability, its inner trimmer potentiometer is used for the output balance adjustment of second sensor 7.
The disclosed a kind of bunker scale automatic check device of the utility model; Adopt the pressure of lifting jack 5 to replace the weight of standard test weight to carry out verification; Not only convenient but also quick, operating personnel can load or unloading lifting jack 5 according to field condition, and it is also time saving and energy saving that calibration operation is more oversimplified.
Also there is good prospects for application aspects such as the bunker scale automatic check device of the utility model is claimed at platform, the daily inspection of truck scale and track scale, fault distinguishing.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the instructions, must confirm its technical scope according to the claim scope.
Claims (5)
1. bunker scale automatic check device; It is characterized in that: said bunker scale automatic check device comprises hopper, shelf, framework, weighing instrument, lifting jack, first sensor and second sensor; Said first sensor is arranged on said shelf surface; Said lifting jack compresses said first sensor, and said hopper supports said shelf, and said second sensor is arranged between said hopper and the said framework; Contact with said framework with said hopper respectively, and electrically connect with said weighing instrument.
2. bunker scale automatic check device according to claim 1 is characterized in that: said first sensor and said second sensor are resistance strain type sensor.
3. bunker scale automatic check device according to claim 1 is characterized in that: said lifting jack is spiral lifting jack, and it is upside down on the said framework.
4. bunker scale automatic check device according to claim 1 is characterized in that: said framework is grooved or case type structures.
5. bunker scale automatic check device according to claim 1 is characterized in that: the quantity of said second sensor is four, and it contacts with the outside surface of said hopper respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202592443U CN202166472U (en) | 2011-07-21 | 2011-07-21 | Automatic calibration device for hopper scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202592443U CN202166472U (en) | 2011-07-21 | 2011-07-21 | Automatic calibration device for hopper scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202166472U true CN202166472U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202592443U Expired - Fee Related CN202166472U (en) | 2011-07-21 | 2011-07-21 | Automatic calibration device for hopper scale |
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| Country | Link |
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| CN (1) | CN202166472U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067096A (en) * | 2015-07-28 | 2015-11-18 | 本钢板材股份有限公司 | Portable hopper scale operator simulation calibrator and calibration method |
| CN112033517A (en) * | 2020-08-26 | 2020-12-04 | 河南省计量科学研究院 | Dynamic calibration method for checkweigher |
| CN112161691A (en) * | 2020-09-23 | 2021-01-01 | 湖州上建混凝土有限公司 | Concrete batching scale calibration mechanism |
-
2011
- 2011-07-21 CN CN2011202592443U patent/CN202166472U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067096A (en) * | 2015-07-28 | 2015-11-18 | 本钢板材股份有限公司 | Portable hopper scale operator simulation calibrator and calibration method |
| CN112033517A (en) * | 2020-08-26 | 2020-12-04 | 河南省计量科学研究院 | Dynamic calibration method for checkweigher |
| CN112161691A (en) * | 2020-09-23 | 2021-01-01 | 湖州上建混凝土有限公司 | Concrete batching scale calibration mechanism |
| CN112161691B (en) * | 2020-09-23 | 2021-12-24 | 湖州上建混凝土有限公司 | Concrete batching scale calibration mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20130721 |