CN203629654U - Weighing device based on electronic belt conveyor scale - Google Patents
Weighing device based on electronic belt conveyor scale Download PDFInfo
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- CN203629654U CN203629654U CN201320796740.1U CN201320796740U CN203629654U CN 203629654 U CN203629654 U CN 203629654U CN 201320796740 U CN201320796740 U CN 201320796740U CN 203629654 U CN203629654 U CN 203629654U
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- electronic balance
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Abstract
The utility model discloses a weighing device based on an electronic belt conveyor scale; the weighting device comprises an A electronic belt conveyor scale, a B electronic belt conveyor scale, a belt conveyor, and a micro increment quantification feeder; the A electronic belt conveyor scale and the B electronic belt conveyor scale are arranged on the belt conveyor; the A electronic belt conveyor scale is arranged on a material feeding direction of the belt conveyor; the B electronic belt conveyor scale is arranged behind the A electronic belt conveyor scale; the micro increment quantification feeder is arranged between the A electronic belt conveyor scale and the B electronic belt conveyor scale; therefore, the weighing device based on the electronic belt conveyor scale can obviously improve weighing precision of the electronic belt conveyor scale.
Description
Technical field
The utility model relates to weighing field, refers to especially a kind of weighing device based on belted electronic balance.
Background technology
At present, belted electronic balance is the instrument for belt conveyor material continuous weighting.The impact that belted electronic balance is brought to measuring accuracy by belt tension in actual applications is always perplexed, special in the metering occasion of low discharge, the initial material loading of metering occasion, belt and the long metering occasion of tailing material drag of the frequent fracture of belt blanking, owing to being subject to the impact of belt tension, the measuring accuracy of these occasions cannot guarantee at all above, even cannot measure.And the reason that produces this situation is too small load capacity in kind, the belt tension state at all cannot allow belt tension reach whole piece belt often to carry time, add loading force that load produces and can not be delivered to completely and cause on weighing load carrier.And the loading force transmission of the micro-load change of belt conveyer scale frame under belt tension impact is nonlinear, thus with conventional demarcation means and single metering plant every the measuring accuracy problem that compensates constant coefficient and cannot solve above these occasions always.
Utility model content
In view of this, the purpose of this utility model is to propose a kind of weighing device based on belted electronic balance, can obviously improve the weighing precision of belted electronic balance.
A kind of weighing device based on belted electronic balance providing based on above-mentioned purpose the utility model, comprise A belted electronic balance, B belted electronic balance, belt feeder and micro-increment constant feeder, described A belted electronic balance, described B belted electronic balance are arranged on described belt feeder, described A belted electronic balance is arranged on the supplied materials direction of described belt feeder, after described B belted electronic balance is arranged on described A belted electronic balance; Described micro-increment constant feeder is arranged between described A belted electronic balance and described B belted electronic balance.
Alternatively, the structure of described micro-increment constant feeder is on a support frame, to lift a broach hopper, and a LOAD CELLS is at least equipped with in described support frame upper; Wherein, the support frame of described micro-increment constant feeder is fixed on ground, or is directly fixed on the support of described belt feeder; On the discharging opening of described broach hopper bottom, connect a screw feeder; On described micro-increment constant feeder, be provided with the integrator of weighing.
Further, the structure of described micro-increment constant feeder is to lift a broach hopper on a steel construction square support frame, in four jiaos of syndetons of described support frame, a LOAD CELLS is at least housed.
Further, described A belted electronic balance, described B belted electronic balance are respectively arranged with integrator instrument.
As can be seen from above, the weighing device based on belted electronic balance that the utility model provides, is arranged on supplied materials direction by A belted electronic balance, after B belted electronic balance is arranged on described A belted electronic balance; Micro-increment constant feeder is arranged between described A belted electronic balance and described B belted electronic balance.Therefore, weighing device based on belted electronic balance described in the utility model and realize belt high-precision measuring method and can solve the problem that affects measuring accuracy due to belt tension.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of weighing device based on belted electronic balance of the utility model embodiment;
Fig. 2 is the schematic flow sheet of the high-precision measuring method of the weighing device of the utility model embodiment based on belted electronic balance;
Fig. 3 is the relation curve schematic diagram of the utility model embodiment belt load and belted electronic balance load signal.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
Consult shown in Fig. 1, for the structural representation of a kind of weighing device based on belted electronic balance of the embodiment of the present invention, the weighing device of described belted electronic balance comprises A belted electronic balance 101, B belted electronic balance 102, belt feeder 103 and micro-increment constant feeder 104.Wherein, A belted electronic balance 101, B belted electronic balance 102 are arranged on belt feeder 103, and A belted electronic balance 101 is arranged on supplied materials direction, after B belted electronic balance 102 is arranged on A belted electronic balance 101.Micro-increment constant feeder 104 is arranged between A belted electronic balance 101 and B belted electronic balance 102.
In one embodiment of the invention, the structure of micro-increment constant feeder 104 is to lift a broach hopper on a steel construction square support frame, in four jiaos of syndetons of its steel construction square support frame, a LOAD CELLS is at least housed.Wherein, the steel construction square support frame of micro-increment constant feeder 104 can be fixed on ground, or is directly fixed on the support of belt feeder 103.In addition, on the discharging opening of broach hopper bottom, connect a screw feeder, by controlling the rotating speed control feeding coal of screw feeder.On micro-increment constant feeder 104, be provided with the integrator of weighing, the Numerical Control of the feeding coal of micro-increment constant feeder 104 is that the decrement value drawing by the signal data of the integrator processing LOAD CELLS of weighing realizes.
It should be noted that, A belted electronic balance 101, B belted electronic balance 102 are respectively arranged with integrator instrument separately in an embodiment, and micro-increment constant feeder 104 is also with an integrator.Certainly,, as an alternative embodiment of the invention, the described weighing device based on belted electronic balance also can adopt the form of an integrator instrument with three integrating transmitters.
Consulting shown in Fig. 2, is a kind of schematic flow sheet of realizing belt high-precision measuring method based on micro-increment demarcation matching of the embodiment of the present invention, and the described belt high-precision measuring method that realizes comprises:
As one embodiment of the present of invention, take A belted electronic balance 101 as benchmark scale, set the load accumulated time of 5 minutes.In 5 minutes of A belted electronic balance 101, add up W1 ton; in 5 minutes of B belted electronic balance 102, add up W2 ton; according to metering plant every penalty coefficient correction formula: actual interval coefficient/preset interval coefficient=calibration datum quantity/demonstration amount, new B scale interval penalty coefficient=(W1/W2) current preset interval penalty coefficient of * B scale.
As one embodiment of the present of invention, in the time that streams is crossed A belted electronic balance 101 and will be arrived B belted electronic balance 102, the discharge quantity feed that micro-increment constant feeder 104 starts to set, the material being superimposed upon on belt feeder 103 is passed through together B belted electronic balance 102 by institute's discharge quantity.Now, A belted electronic balance 101 there will be a difference with every meter of load of B belted electronic balance 102, and this difference should be shown as a constant material value at B belted electronic balance 102.But because the belt tension that is subject to belt feeder 103 affects, the demonstration of the incremental difference of discharge quantity starting stage on B belted electronic balance 102 can present the variation tendency increasing gradually, and described data processing equipment is recorded this data variation on A belted electronic balance 101 and B belted electronic balance 102.Along with the increase of belt feeder 103 transported materials, on material metering, impact will fade away the belt tension of belt feeder 103, and the data break that on B belted electronic balance 102, the displayed value of the incremental difference of stack changes is more and more less.In the time that the displayed value of the increment size of B belted electronic balance 102 occurs stablize definite value, the data acquisition that belt tension compensates completes.The point that definite value is stablized in the displayed value appearance of increment size is exactly the G point of belt tension.
The belt that described belt tension results between the belt roller of belt feeder 103 is subject to material load to oppress the deformation causing and the resistibility upwards producing.In the time of blanking bar, the pressure counteragent maximum of belt tension to vertical direction, in the time starting to have load on belt, the loading force at belt roller place is completely downward applied pressure correctly to be passed to belted electronic balance by belt, but the belt between carrying roller is oppressed by material load, the deformation that belt causes thus, can produce resistibility upwards, affects the correct transmission of material loading force.Now, only some loading force has been delivered on belted electronic balance.And along with load on belt constantly increases, the deformation of belt is in continuous aggravation, until some critical loads, be designated as G point, the load pressure of its generation balances out belt tension completely, make after the pressure transmission of the relative belted electronic balance of belt deformation reaches abundant transmit mode, tension force no longer affects metering, and the increase of load and load signal (being the continuous data of belted electronic balance) meet linear relationship.As shown in Figure 3, in the time that the load on belt is less than G point, the continuous data on load capacity and belted electronic balance just enters nonlinear area.In the time that the load on belt is greater than G point, the continuous data on load capacity and belted electronic balance just enters the range of linearity.Fig. 3 is the schematic diagram of the relation curve of belt load F and belted electronic balance load signal U, and U0 is that belt load F is 0 o'clock belted electronic balance load signal value.Belt load F is 0 to be that on belt feeder, load is for empty, but the weight of having carried self scale frame and belt feeder belt due to the sensor on belted electronic balance, therefore the signal of sensor is non-vanishing.It should be noted that, can obtain respectively the relation curve of relation curve, B belted electronic balance load signal U and the belt load F of A belted electronic balance load signal U and belt load F according to the load F of A, the each self-recording load signal U of two belted electronic balances of B and belt feeder 103 belts.
As an alternative embodiment of the invention, the setting of the feed value of micro-increment definite value batcher 104: due in International or National belted electronic balance measurement standard conventionally to being less than the flow of normal maximum load below 20% time not within measuring accuracy critical field, still have reason to think that measuring accuracy non-linear section should be between 0-20%.Thus, the setting of the feed value of micro-increment definite value batcher 104 preferably feed value at the 10%--20% of belt feeder 103 normal maximum loads 20%.Wherein, the Mei meter unit weight of material of belt feeder 103 under maximum freight volume is exactly maximum load.But due in actual field condition, the medium of belted electronic balance and thickness difference, there are pierce tap, General Purpose Rubber band, nylon tape etc., its tension force performance is also different, therefore, preferably the setting of the feed value of micro-increment definite value batcher 104 also needs finally to determine by scene calibration experimental result in kind.In addition, the minimum storing amount of micro-increment definite value batcher 104 hoppers also needs to determine according to the on-site actual situations such as blanking pattern, load capacity size of belt, but in principle can be according to field condition, and what the hopper of batcher was done is large as far as possible.
In one embodiment of the invention, every penalty coefficient correction formula, load on metering plant that increment B belted electronic balance 102 on revise B scale every penalty coefficient by known according to metering plant, be:
The revised interval of B scale penalty coefficient/B scale preset interval penalty coefficient=B scale increment loaded value/B scale load shows increment size
Because the measuring accuracy of A, two belted electronic balances of B is consistent, therefore, the displayed value that B belted electronic balance 102 does not add micro-increment should equal the displayed value of A belted electronic balance 101, therefore:
B scale load shows increment=B scale load displayed value-A scale load displayed value
So:
The revised metering plant of B scale every penalty coefficient=(the actual increment of B scale/(B scale load displayed value-A scale load displayed value)) × preset metering plant of B scale every penalty coefficient
Wherein, the actual increment size of B scale is known by micro-increment constant feeder 104.Can find out if metering plant arranges correctly every penalty coefficient from formula above, the load obtaining shows that increment should be consistent with actual increment size.If the deviation of existence, will obtain metering plant every penalty coefficient modified value by this formula.
Described revised metering plant is exactly that the metering plant of the tension force to this point of B belted electronic balance 102 under some load flows is every penalty coefficient every penalty coefficient.By this interval penalty coefficient, the real load that does not add micro-increment that can calculate back B belted electronic balance 102 these points, formula is: after the correction of B scale correction afterload value=B scale metering plant before the correction of penalty coefficient/B scale metering plant every penalty coefficient × A scale load displayed value.Because the measuring accuracy of A, two belted electronic balances of B is consistent, thus in calculating in the above directly substitution A scale load displayed value.
So, the data of all each section of points that collect before B scale critical load G point are revised one by one, and these revised metering plants are stored in to metering plant in coefficient list every penalty coefficient and corresponding load value, this table is exactly the tension compensating coefficient table of B scale.
Then can revise every penalty coefficient the metering plant of A belted electronic balance 101 every penalty coefficient by revised B belted electronic balance 102 metering plants, its formula is: after the correction of A scale metering plant before penalty coefficient=(B scale correction afterload value/A scale load displayed value) × A scale correction metering plant every penalty coefficient.So, all data that collect before A scale critical load G point are revised one by one, and these revised metering plants are stored in to metering plant in coefficient list every penalty coefficient, this table is exactly the tension compensating coefficient table of A scale.
Thus, when the material of load on belt is while being less than the load region that critical load G orders, A, two belted electronic balances of B just can extract corresponding metering plant and every penalty coefficient, metering result be revised in real time from described tension compensating coefficient table separately.Thereby can realize, the curve of the non-linear measuring accuracy under tiny load is made up, complete the nonlinear precision curve under tiny load and made list up, just can be according to the variation of load on belt, in real time from list, extract corresponding metering plant every penalty coefficient, thereby eliminate belt tension, measuring accuracy is affected, realize full load section high-precision measuring.
It should be noted that, the present invention also can make tension compensating coefficient table by same method of operating at tail material section, for described tail material section is implemented to revise from material loading section with respect to previous methods.Belt load by enter be less than normal maximum load 20% time tail material section time, micro-increment definite value batcher starts feed, adopts above-mentioned same data acquisition and processing (DAP) method to realize metering system the curve of the non-linear measuring accuracy under tiny load is made up.
As one embodiment of the present of invention, micro-increment definite value batcher 104 strengthens feeding coal to 10% of belt feeder 103 maximum loads, according to method recited above and correction formula, can obtain the rear actual metering interval coefficient of B belted electronic balance 102 belt critical load G points.Afterwards, by the revised metering plant of B belted electronic balance 102, actual metering plant is every penalty coefficient after the belt critical load G of penalty coefficient correction A belted electronic balance 101 point, and its method is consistent with the same described method of correction formula.
So far, described weighing device has completed whole flow section metering plants of A, two belted electronic balances of B every the correction of penalty coefficient, and makes method up by the curve of non-linear section measuring accuracy, guarantees and improved the precision of whole flow section metering results.
According to describing ground above, a kind of weighing device based on belted electronic balance the utility model proposes and realize belt high-precision measuring method, has creatively proposed to revise metering plant makes non-linear section up measuring accuracy every penalty coefficient; The utility model uses the curve of non-linear section measuring accuracy to make method up, has guaranteed the measuring accuracy of omnidistance flow load measuring result; Meanwhile, can further improve the measuring accuracy of belted electronic balance, main is that belted electronic balance is achieved at the gage work of some special Belt Conveying occasions, for example, in the metering occasion of low discharge, the initial material loading of metering occasion, belt and the long metering occasion of tailing material drag of the frequent fracture of belt blanking; Finally, whole described weighing device based on belted electronic balance and to realize belt high-precision measuring method easy, compact, is easy to realize.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle; any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. the weighing device based on belted electronic balance, it is characterized in that, comprise A belted electronic balance, B belted electronic balance, belt feeder and micro-increment constant feeder, described A belted electronic balance, described B belted electronic balance are arranged on described belt feeder, described A belted electronic balance is arranged on the supplied materials direction of described belt feeder, after described B belted electronic balance is arranged on described A belted electronic balance; Described micro-increment constant feeder is arranged between described A belted electronic balance and described B belted electronic balance.
2. weighing device according to claim 1, is characterized in that, the structure of described micro-increment constant feeder is on a support frame, to lift a broach hopper, and a LOAD CELLS is at least equipped with in described support frame upper; Wherein, the support frame of described micro-increment constant feeder is fixed on ground, or is directly fixed on the support of described belt feeder; On the discharging opening of described broach hopper bottom, connect a screw feeder; On described micro-increment constant feeder, be provided with the integrator of weighing.
3. weighing device according to claim 2, it is characterized in that, the structure of described micro-increment constant feeder is to lift a broach hopper on a steel construction square support frame, in four jiaos of syndetons of described support frame, a LOAD CELLS is at least housed.
4. according to the weighing device described in claims 1 to 3 any one, it is characterized in that, described A belted electronic balance, described B belted electronic balance are respectively arranged with integrator instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796740.1U CN203629654U (en) | 2013-12-04 | 2013-12-04 | Weighing device based on electronic belt conveyor scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796740.1U CN203629654U (en) | 2013-12-04 | 2013-12-04 | Weighing device based on electronic belt conveyor scale |
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| Publication Number | Publication Date |
|---|---|
| CN203629654U true CN203629654U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320796740.1U Expired - Fee Related CN203629654U (en) | 2013-12-04 | 2013-12-04 | Weighing device based on electronic belt conveyor scale |
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| CN (1) | CN203629654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674195A (en) * | 2013-12-04 | 2014-03-26 | 北京心觉工业设计有限责任公司 | Weighing device based on electronic belt weighers and belt high-precision metering method |
| CN108593061A (en) * | 2018-03-21 | 2018-09-28 | 郑州金恒电子技术有限公司 | A kind of weighing method of belted electronic balance |
-
2013
- 2013-12-04 CN CN201320796740.1U patent/CN203629654U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674195A (en) * | 2013-12-04 | 2014-03-26 | 北京心觉工业设计有限责任公司 | Weighing device based on electronic belt weighers and belt high-precision metering method |
| CN103674195B (en) * | 2013-12-04 | 2015-11-04 | 北京心觉工业设计有限责任公司 | Based on belted electronic balance weighing device and realize belt high-precision measuring method |
| CN108593061A (en) * | 2018-03-21 | 2018-09-28 | 郑州金恒电子技术有限公司 | A kind of weighing method of belted electronic balance |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20151204 |
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| EXPY | Termination of patent right or utility model |