CN202221338U - High-simulation belt weigher simulation load device - Google Patents
High-simulation belt weigher simulation load device Download PDFInfo
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- CN202221338U CN202221338U CN2011203442782U CN201120344278U CN202221338U CN 202221338 U CN202221338 U CN 202221338U CN 2011203442782 U CN2011203442782 U CN 2011203442782U CN 201120344278 U CN201120344278 U CN 201120344278U CN 202221338 U CN202221338 U CN 202221338U
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Abstract
The utility model discloses a belt weigher simulation load device capable of highly simulating a material test. The belt weigher simulation load device mainly comprises a device frame, an array that is arranged on the device frame and is composed of a plurality of glue-coated carrying rollers, a metering roller positioned on one end of the glue-coated carrying roller array, a metering sensor connected with the metering roller, a blocking roller slide rail, a blocking roller placed in the blocking roller slide rail, a blocking roller elevation driving mechanism, and weighing loops in the shape of an enclosed loop chain. The upper half loop of the weighing loops is supported by the metering roller, the glue-coated carrying rollers and the blocking roller. During the operation of the device, the lower half loop is arranged on a belt object carrying surface. The belt weigher simulation load device is characterized in that one to four weighing loops are provided; each link connected to be the weighing loops is a packed bulk material; the packaging bag of each bulk material is made from a durable, soft, moisture-proof and leakage-proof material; the size of the packaging bag and the weight of the material filled in the bag adapt to the specification and the weighting amount of a belt weigher to be tested; and all packaging bags are connected end to end and is continuously arranged to be an enclosed loop. The belt weigher simulation load device enables high simulation of material tests to be realized, is low in cost, occupies less space, is convenient in calibration, etc.
Description
Technical field
The utility model relates to a kind of belt conveyer scale verification and uses equipment, particularly relates to a kind of simulation load device that can highly imitate the material test.
Background technology
The weight of belt conveyer scale institute weighing material is to be carried on its belt (promptly transmitting the conveying belt of institute's weighing material); Pass to LOAD CELLS again; Conveying belt is processed by rubber, plastic cement elastomeric material usually; Must have the friction force operation that enough tangential tensions could rely on head roll, sagging again the make tension force of belt between adjacent carrying roller produces normal component of force, and this normal direction tension force becomes a kind of perturbed force of LOAD CELLS.Because whole piece belt elasticity coefficient is difficult to guarantee equate everywhere, the flow of alleged bulk material is homogeneous all the time also, so the sag of belt can random variation, and perturbed force is also with regard to unpredictable.For these reasons, the standard test weight verification mode that is generally used for rigidity table top weighing apparatus is not suitable for belt conveyer scale, generally acknowledges that at present the most believable is through being carried out verification by the mode of school belt conveyer scale with material actual weighing or the expection weighing.
But the required material quantity of physical goods inspection is huge, and needs the non-automatic weighing apparatus of pin-point accuracy more to measure the conventional true value of inventory.Requirement by the value transmission; Error as the inventory of verification standard must be not more than 1/3～1/5 of seized belt conveyer scale franchise; The price of the non-automatic weighing apparatus that each item performances such as maximum weighing, calibrating scale division value, accuracy can both meet the demands often exceeds doubly a lot of than belt conveyer scale, also will take sizable place; Therefore physical goods inspection is not only very wasted time and energy, and also lacks the control weighing apparatus of pin-point accuracy, big weighing because of the scene sometimes, and makes the physical goods inspection that meets the requirements be difficult to realize.So the simulation load test method and the device that substitute actual loading test under certain condition arise at the historic moment, and receive the welcome of vast belt conveyer scale user and manufacturer, be by the simulation load kind of generally using like link code and roller chain code.But link code directly is carried on the belt conveyer scale weight-scale table without belt; Though the roller chain code loads on the belt, do not advance with belt, just the code block of its each link rotates in the original place under the belt friction; And each belt balance weighing idlers pitch that require to load the chain code place and conveying idlers pitch is all consistent that bigger error can not be arranged; Also requiring idlers pitch is the integral multiple of chain code pitch, otherwise, when chain code on belt during with respect to the change in location of carrying roller; The suffered load of LOAD CELLS also changes thereupon, makes the repeated variation of check results.Patent document ZL88102734.0 (Granted publication day 1989-05-24, Granted publication CN1033103A) has introduced the practical simulation load that a kind of usefulness places the dolly loading standard counterweight on the transmission belt, and its principle is similar with the roller chain code.Because above-mentioned simulation load in use fixes the position, claimed that with actual the situation of material is different, so their verification effect and physical goods inspection difference are very big, also do not have constant corresponding relation.
Patent document ZL 00233429.1 (2001-02-21:CN2420629Y) has released a kind of novel analog load that in the industry cycle is called as circulating chain code, and its code block is processed the flat of similar crawler belt usually, is different from the roller shape of previous chain code.Under the situation of the weighing equal in length of seized belt conveyer scale, the required code block string length overall of circulating chain code is greater than more than 2 times of common chain code, the end to end formation closed circular of these code blocks.The last half-turn of circulation code block circle is propped by rubber-coating idle roller, and its lower branch places on the transmission belt, and the code block circle is advanced by the drive circulation of transmission belt friction force.Circulating chain code is higher than link code and roller chain code to the simulating degree of material object; Therefore the requirement of code-aiming block pitch and idlers pitch needn't be strict as the roller chain code; But its code block remains the rigid material with solid shape; Its Density Distribution situation is totally different in the bulk material of the actual weighing of belt conveyer scale, and therefore the simulating degree to material object still has suitable distance.The such calibration equipment of one cover needs hundreds of code block, and the code block cost of manufacture of metal material is high, and assembling, dismounting, the replacing of big quantity code block are very bothersome, are not easy to by the specified period calibration, and the reliability of transmission of quantity value is difficult to guarantee.ZL200320126466.3 (2004-12-08:CN2662212Y), ZL200320102120.X (2004-10-20:CN2650086), ZL200420002638.0 inventions such as (2005-03-23:CN2687634) are the improvement to ZL00233429.1, but material of their code block circles and shape all do not have very variation.
The utility model content
To the defective that existing known technology exists, the technical matters that the utility model will solve provides a kind of belt conveyer scale simulation load calibration equipment higher to the bulk material fidelity than prior art.
In order to solve the problems of the technologies described above, the utility model has adopted flexible reflected code circle, and each link of sign indicating number circle is " a soft counterweight ", and the promptly inner flexible bags that quantitative bulk material is housed can have good applying with the belt of belt conveyer scale.
The utility model is realized through following technical scheme; Its main composition comprises: device frame; Be located at several rubber-coating idle rollers of forming array on the device frame, be located at the roller of having the records of distance by the log that is positioned at rubber-coating idle roller array one end on the device frame equally, with the continuous sensor of having the records of distance by the log of roller of having the records of distance by the log; Be positioned at the retaining roller slide rail of the rubber-coating idle roller array other end; Place the retaining roller in the retaining roller slide rail, be positioned at retaining roller slide rail one side and be installed in the retaining roller lift drive mechanism on the device frame, be surrounded on the sign indicating number circle of one-tenth closed-loop chain outside the roller of having the records of distance by the log, rubber-coating idle roller array, the retaining roller etc.; It is characterized in that: said sign indicating number circle has 1 at least; Each link that is concatenated into the sign indicating number circle is packed bulk material; The packaging bag of bulk material is processed by the material of solid softness, moistureproof anti-leak; The specification and the weighing of the weight adaptation institute verification belt conveyer scale of the size of packaging bag and the material of adorning, the end to end closed-loop that is arranged in continuously of each packaging bag.
Look by school belt conveyer scale and place situation, the framework of this device can also can be sling by the rigidity hanging pillar that is fixed on the roof truss by (fixing or movably) rigid leg supporting on the ground.
Be a plurality of from small to large feed flows in the whole range of ability comprehensive simulated belt conveyer scale; The utility model can increase yard number of turns amount of joining (establishing 2～4 bar code circles usually) on the basis of the soft sign indicating number circle of 1 loop chain shape of first wife; The weight of each bar code circle unit length can equate, also can be unequal; The bar code circle is separate is independent of each other for each, is furnished with separately have the records of distance by the log roller and sensor and retaining roller separately and the retaining roller lift drive mechanism of having the records of distance by the log respectively, can drop on the belt of belt conveyer scale separately or packs up the disengaging belt.
For exempting to skid when the sign indicating number circle moves, the above-mentioned roller of having the records of distance by the log is the polygon prism shape usually, and does not adopt cylindric.
The utility model has the advantages that: the soft counterweight of employing is compared with the rigidity code block, can fit with the loading surface of conveying belt better, for actual loading test higher emulation degree is arranged, and makes economical and practical simulation load test findings more credible; The lower cost for material of soft counterweight is convenient to often calibration or local replacing, to guarantee the transmission of quantity value correct and effective.
Description of drawings
Fig. 1 is that the utility model embodiment places the schematic side view on the belt conveyer scale belt.
Fig. 2 is the schematic top plan view of the utility model embodiment.
Fig. 3 is the schematic top plan view of another embodiment of the utility model.
Mark among the figure: 1-framework, 2-rubber-coating idle roller, 3 (3 ')-roller of having the records of distance by the log, 4 (4 ')-sensor of having the records of distance by the log, 5 (5 ')-retaining roller, 6-retaining roller slide rail, 7 (7 ')-retaining roller lift drive mechanism, 8 (8 ')-sign indicating number circle, 9-belt conveyer scale belt; The arrow indication is belt conveyer scale belt or sign indicating number circle traffic direction.
Embodiment
To combine accompanying drawing and specific embodiment to the utility model further explain below.
Like Fig. 1 and shown in Figure 2; The principal character of the said high emulation belt conveyer scale simulation load device of the utility model is that its yard circle (8) is the closed-loop that flexible bags identical by a succession of physical dimension, that quantitative bulk material is equipped with in inside is unified into; Closed-loop is surrounded rubber-coating idle roller (2) array, the roller of having the records of distance by the log (3), retaining roller (5); Rubber-coating idle roller (2) array and the roller (3) of having the records of distance by the log be installed on device frame (1) above, retaining roller slide rail (6) also is fixedly connected with device frame (1), retaining roller (5) place in retaining roller slide rail (6) and with keep off roller lift drive mechanism (7) and link to each other; The roller (3) of having the records of distance by the log links to each other with the sensor of having the records of distance by the log (4); The fixed form of device frame (1) is looked by school belt conveyer scale and place situation and is decided, and can also can be sling by the rigidity hanging pillar that is fixed on the roof truss by being fixed in ground rigid leg supporting.
During the work of this device; Retaining roller lift drive mechanism (7) has a down dip and extends its push rod; Retaining roller (5) descends along retaining roller slide rail (6) under the push rod effect; So the lower branch of sign indicating number circle (8) is fallen by on the loading surface of the belt of school belt conveyer scale (9), the last half-turn of sign indicating number circle then contacts with the roller (3) of having the records of distance by the log, rubber-coating idle roller (2) array closely.After belt conveyer scale started, the sign indicating number circle was advanced under the belt function of friction thereupon, drove the roller (3) of having the records of distance by the log and rotated and make the sensor of having the records of distance by the log (4) the output code circle stroke signal that links with it, transported to accessory instrument and handled; Circulation does not stop as long as belt operation, sign indicating number circle just go round and begin again.On retaining roller lift drive mechanism (7), lift and shorten its push rod; Retaining roller (5) rises along retaining roller slide rail (6) under the push rod effect; So the lower branch of sign indicating number circle (8) is broken away from by on the loading surface of the belt of school belt conveyer scale (9), and belt conveyer scale withdraws from the verification state, is claimed that material can be unimpeded on belt.
Fig. 3 is the embodiment synoptic diagram that 2 bar code circles are housed; 2 bar code circles are furnished with the roller of having the records of distance by the log (3 or 3 ') separately and the sensor of having the records of distance by the log (4 or 4 ') and retaining roller (5 or 5 ') separately and retaining roller lift drive mechanism (7 or 7 ') respectively; Their separate being independent of each other can be dropped on the belt of belt conveyer scale separately or packed up the disengaging belt.The weight of 2 bar code circle unit lengths can equate, also can be unequal.
Introduce a simulation load device main design parameters that is used for the three sections of groove type belt conveyer scale of nominal bandwidth 1400mm below.The adjacent idlers pitch of known belt conveyer scale is 1.2m, and front and back scale end idlers pitch 6m uses the time-code circle can cover the respectively Belt Length (8.4m) an of idlers pitch of scale end carrying roller front and back, existing access code circle ring girth 20m.Look into handbook and can know that the maximum allowable specific electric load of the DT-II type band conveyor of 1400mm bandwidth can reach 220kg/m or big slightly; For on 20%, 50%, 75%, 100% 4 range point, establishing four sign indicating number circles by the verification belt conveyer scale; Their line density is respectively 20%, 25%, 25%, 30% of maximum allowable specific electric load, i.e. 44kg/m, 55kg/m, 55kg/m, 66kg/m; By the requirement of 0.5 grade of belt conveyer scale of verification, the relative franchise of line density of sign indicating number circle must not be greater than 0.5% * 1/2 * 1/3, and packaging bag wants volume well-to-do, still can keep enough flexibilities after filling the bulk material of required weight; The length of at present choosing flexible bags is 200mm; Inside is adorned dried silica sand back pkt. and heavily is respectively 8.8kg ± 7.3g (100), 11kg ± 9.1g (200), 13.2kg ± 11g (100), should be equipped with maximum weighing for this reason and be not less than the non-automatic weighing apparatus of III level that 15kg, scale division value are not more than 2g.Can use quite long time after a weighing of packaging bag finishes continuously, in the checking procedure of belt conveyer scale, generally need not to claim again.
Nominal tape speed by the DT-II type band conveyor of 1400mm bandwidth is 1m/s～3.15m/s; Its maximum hour flow is 220kg/m * (1～3.15) m/s=(220～693) kg/s=(792～2495) t/h; Press the belt conveyer scale vertification regulation; The required minimum inventory of material test is 2% of following 1 a hour cumulative amount of maximum flow, i.e. 15.84t～49.9t, and weighing error must not be greater than ± (13.2～41.5) kg; That is to say that the maximum weighing of control weighing apparatus that needs to be equipped with is not less than 16t～50t; When control weighing apparatus was used for the weighing verification immediately and use material after calibration, its calibrating scale division value was not more than 10kg～20kg (at this moment also need be equipped with the standard test weight that weighing apparatus is controlled in calibration), and the calibrating scale division value of controlling weighing apparatus in other cases then must not be greater than 2kg～10kg (the non-automatic weighing apparatus of at this moment most of common III level reach this requirement).In the checking procedure of belt conveyer scale, material whenever through belt conveyer scale once just must weighing be once again to material.Obviously, the price of the weighing apparatus of big weighing will be higher than the weighing apparatus of little weighing, and the place that takies and daily servicing expense are also higher.
In sum; The high emulation belt conveyer scale of the utility model simulation load device has advantages such as the fidelity that material is tested is high, cheap, occupied ground is few, calibration is convenient; This efficient weighing apparatus of being convenient to the linking automation system of belt conveyer scale has limited its speed of development because of daily calibration difficulties, and the appearance of the utility model will make this phenomenon be able to take on a new look.
Claims (4)
1. one kind high emulation belt conveyer scale simulation load device; Mainly by device frame (1); Be located at several rubber-coating idle rollers (2) of forming array on the device frame, be located at the roller of having the records of distance by the log (3) that is positioned at rubber-coating idle roller array one end on the device frame equally, with the continuous sensor of having the records of distance by the log (4) of roller of having the records of distance by the log; Be positioned at the retaining roller slide rail (6) of the rubber-coating idle roller array other end; Place the retaining roller (5) in the retaining roller slide rail, be positioned at retaining roller slide rail one side and be installed in the retaining roller lift drive mechanism (7) on the device frame, the sign indicating number circle (8) that is surrounded on one-tenth closed-loop chain outside the roller of having the records of distance by the log, rubber-coating idle roller array, the retaining roller is formed; It is characterized in that: said sign indicating number circle has 1 at least; Each link that is concatenated into the sign indicating number circle is packed bulk material; The packaging bag of bulk material is processed by the material of solid softness, moistureproof anti-leak; The specification and the weighing of the weight adaptation institute verification belt conveyer scale of the size of packaging bag and the material of adorning, the end to end closed-loop that is arranged in continuously of each packaging bag.
2. high emulation belt conveyer scale simulation load device according to claim 1 is characterized in that: said device frame (1) can also can be sling by the rigidity hanging pillar that is fixed on the roof truss by fixing on the ground or movably rigid leg supporting.
3. high emulation belt conveyer scale simulation load device according to claim 1 is characterized in that: said sign indicating number circle has 2～4, and the weight of each bar code circle unit length can equate, also can be unequal; The bar code circle is separate is independent of each other for each; Be furnished with roller of having the records of distance by the log (3 or 3 ') separately and the sensor of having the records of distance by the log (4 or 4 ') and retaining roller (5 or 5 ') separately and retaining roller lift drive mechanism (7 or 7 ') respectively, can drop on the belt of belt conveyer scale separately or pack up the disengaging belt.
4. high emulation belt conveyer scale simulation load device according to claim 1, it is characterized in that: the said roller of having the records of distance by the log is the polygon prism shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203442782U CN202221338U (en) | 2011-09-15 | 2011-09-15 | High-simulation belt weigher simulation load device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203442782U CN202221338U (en) | 2011-09-15 | 2011-09-15 | High-simulation belt weigher simulation load device |
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| Publication Number | Publication Date |
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| CN202221338U true CN202221338U (en) | 2012-05-16 |
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| CN2011203442782U Expired - Lifetime CN202221338U (en) | 2011-09-15 | 2011-09-15 | High-simulation belt weigher simulation load device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289840A (en) * | 2016-08-08 | 2017-01-04 | 武汉大学 | A kind of for the experimental provisions driving walking mechanism and experimental technique more |
| CN112050916A (en) * | 2020-06-22 | 2020-12-08 | 华东理工大学 | Method for measuring total mass of material based on vibration frequency of weighing carrier roller |
| CN114485892A (en) * | 2022-02-15 | 2022-05-13 | 青岛市计量技术研究院 | Automatic hanging code checking system for electronic belt scale |
-
2011
- 2011-09-15 CN CN2011203442782U patent/CN202221338U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289840A (en) * | 2016-08-08 | 2017-01-04 | 武汉大学 | A kind of for the experimental provisions driving walking mechanism and experimental technique more |
| CN112050916A (en) * | 2020-06-22 | 2020-12-08 | 华东理工大学 | Method for measuring total mass of material based on vibration frequency of weighing carrier roller |
| CN112050916B (en) * | 2020-06-22 | 2021-11-30 | 华东理工大学 | Method for measuring total mass of material based on vibration frequency of weighing carrier roller |
| CN114485892A (en) * | 2022-02-15 | 2022-05-13 | 青岛市计量技术研究院 | Automatic hanging code checking system for electronic belt scale |
| CN114485892B (en) * | 2022-02-15 | 2023-10-27 | 青岛市计量技术研究院 | Verification system for automatic hanging code of electronic belt scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211100 No. 12 Shengli Road, Jiangning District, Jiangsu, Nanjing Patentee after: NANJING SANAI IPC CO., LTD. Address before: 211100 No. 12 Shengli Road, Jiangning District, Jiangsu, Nanjing Patentee before: Nanjing Sanai Industrial Automation Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 211100 Jiangning Binjiang Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Saimer Sanai Industrial Control Equipment Co., Ltd. Address before: No. 12 Shengli Road, Jiangning District, Nanjing City, Jiangsu Province, 211100 Patentee before: NANJING SANAI IPC CO., LTD. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120516 |