CN101216396A - Agricultural material impacting characteristic test apparatus and method - Google Patents
Agricultural material impacting characteristic test apparatus and method Download PDFInfo
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- CN101216396A CN101216396A CNA2007101923998A CN200710192399A CN101216396A CN 101216396 A CN101216396 A CN 101216396A CN A2007101923998 A CNA2007101923998 A CN A2007101923998A CN 200710192399 A CN200710192399 A CN 200710192399A CN 101216396 A CN101216396 A CN 101216396A
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Abstract
The invention discloses an impact characteristics test device and a method of agricultural materials. A drop hammer penetrates, from top to bottom, through a guide wheel and a tripod, and a start mechanism is fixed with a guide wheel base. A positioning plate capable of adjusting height is arranged on the drop hammer; a test stage is disposed on the bottom of the tripod; the material to be tested is disposed on the test stage; a charge-type acceleration transducer is arranged on the bottom of the drop hammer; the output terminal of the acceleration transducer is connected with the input terminal of a charge amplifier; and the output terminal of the charge amplifier is connected with the input terminal of a signal collecting box and then connected with a computer. According to the invention, the drop hammer impacts the agricultural materials, the high-impedance charge-type acceleration transducer can acquire the impact response dynamic signals of the agricultural materials, the dynamic characteristic parameters such as dynamic yield force and dynamic disruption force during yielding and disruption of the agricultural materials can be obtained by analyzing the signals, thus providing basis for designing mechanical equipment for harvesting, processing, storing, etc. agricultural materials. The device has simple structure, convenient operation and reliable parameters.
Description
Technical field
The present invention relates to a kind of agricultural material impacting characteristic test apparatus and method, be mainly used in the detection of crop kernels dynamic perfromances such as paddy rice, wheat, corn, soybean, rape.
Background technology
Research to the agricultural material collision characteristic, obtain the correlativity of agricultural material collision characteristic and degree of injury, can gather, divide the design of relevant devices such as grade packaged and transportation that the scientific theory foundation is provided for agricultural material, to reduce the mechanical damage of agricultural material production run.Agricultural material is a biosystem in essence, be different from construction material, therefore be difficult to study the dynamic characteristics of biomaterial, and adopt test method more, yet up to the present the agricultural material collision characteristic does not also have ripe and blanket experimental technique with theoretical analysis method.The patent No. is that ZL03141601.2 is that a kind of name that the Wang Jun of Zhejiang University invents is called " detection method of fruit consolidation and device ", this patent utilization bead that dangles knocks middle part of fruit, obtain and knock the response dominant frequency, obtain the fruit consolidation by computation model, the defective of this method is: owing to be to knock by dangling, so be not suitable for less agricultural material of volume such as cereal etc., and can't obtain parameter informations such as moving yield force, moving disrupture force.
To the prediction of cereal percentage of damage, the way of the U.S. (Cooke and Dickens, 1981) is that cereal is put into specific experimental facilities, and the load that makes cereal bear a definite form produces broken.The cereal of handling is defined as fragmentation sensitivity (Susceptibility) by the particle quality of round-hole mesh (selecting screen size according to the grain size) and the ratio of sample quality, this is a kind of round-about way, and does not provide the dynamic characteristic parameter of cereal itself.
Summary of the invention
The purpose of this invention is to provide a kind of device and method that can obtain dynamic characteristic parameters such as the moving yield force of agricultural material, moving disrupture force, and be applicable to the agricultural material of all size volume.
The technical scheme that apparatus of the present invention adopt is: drop hammer and pass angle sheave and tripod from top to bottom, overlapping a transparent casing that can show height of the fall on dropping hammer, the upper end of transparent casing is connected with the guiding wheel seat of supporting guide wheel, and actuating mechanism is fixed together with the guiding wheel seat; The location-plate that can adjust height of the fall is installed on dropping hammer; Foot bottom at tripod is provided with test board, material to be measured is placed on the test board, in the bottom of dropping hammer the charge type acceleration transducer is installed, the output terminal of acceleration transducer connects the input end of charge amplifier, the output terminal of charge amplifier links to each other with the input end of signals collecting case, inserts computing machine then.
Drop hammer by the bulb at top, the tup of bottom and intermediate connector hammer stem are formed, and the charge type acceleration transducer is installed in the centre of tup, and location-plate is installed on the hammer stem.
The fixed head of actuating mechanism is fixed together with the guiding wheel seat, and the lower end of driving lever and tongue type slide block are movably connected, and the right-hand member of tongue type slide block is with preloading spring; Do not having external force to do stretching out guide pin bushing and can pinning location-plate of time spent tongue type slide block left end, this moment, driving lever leaned against on the backing pin.
The technical scheme that the inventive method adopts comprises the steps: in regular turn
A. tripod is placed on around the test board, moves material to be measured, be located at the center of the bottom of dropping hammer;
B. mention and drop hammer, location-plate is locked mutually with actuating mechanism, observe the height of drop that drops hammer by transparent casing;
C. actuating mechanism discharges when dropping hammer the agricultural material that is placed on the test board is clashed into, and obtains the dynamic signal that is responded with the high impedance charge type acceleration transducer that is installed in the tup;
D. utilize charge amplifier that response signal is amplified, signals collecting case and computing machine are gathered, are write down and store the signal after amplifying;
E. the signal input module in the computing machine is used to obtain acceleration, the force-responsive information of agricultural material impacting, data recordin module carries out discretize with simulating signal and converts digital quantity to, and be stored in the computing machine by form, extract parameters such as response curve, calculated response time, peak value, dominant frequency by filtering in the signal processing module, spectrum analysis, as a result output module will calculate, the analysis result printout, the power peak value that extracts first response signal is the moving yield force of paddy, the moving disrupture force in the time of can obtaining paddy generation fragmentation equally.
Utilization of the present invention is dropped hammer to the bump of agricultural material, high impedance charge type acceleration transducer is housed on dropping hammer obtains agricultural material impacting response power signal, can obtain dynamic characteristic parameters such as agricultural material is surrendered, the moving yield force when broken, moving disrupture force by signal analysis, for the design of plant equipment such as agricultural material results, processing, accumulating provides foundation, simple in structure, easy to operate, as to be obtained and reliable in parameters.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural drawing of apparatus of the present invention;
Fig. 2 is the partial enlarged drawing of actuating mechanism 7 and guiding wheel seat 3 junctions among Fig. 1;
Fig. 3 is the partial top view of angle sheave 2 among Fig. 1;
1 structural drawing drops hammer among Fig. 4 Fig. 1;
Fig. 5 is the detection software systems composition frame chart of computing machine 13 among Fig. 1;
Fig. 6 is the response signal displayed map after agricultural material 9 is impacted among Fig. 1.
Among the figure: 1. drop hammer 101. bulbs, 102. hammer stems, 103. set nuts, 104. tup, 2. angle sheave, 3. guiding wheel seat, 4. tripod, 5. sleeve pipe, 6. location-plate, 7. actuating mechanism, 701. driving levers, 702. backing pin, 703. fixed heads, 704. guide pin bushings, 705. tongue type slide blocks, 706. preloading spring, 8. acceleration transducer, 9. agricultural material, 10. test board, 11. charge amplifier, 12. signals collecting casees, 13. computing machines.
Embodiment
Shown in Fig. 1-4, be apparatus of the present invention hardware system structures, 1 angle sheave 2 and the tripod 4 that passes three radial equipartitions from top to bottom that drop hammer, the tup 104 and the intermediate connector hammer stem 102 of drop hammer 1 bulb 101 by the top, bottom are formed.Charge type acceleration transducer 8 is installed in the centre of bottom tup 104.The location-plate 6 that can adjust 1 height that drops hammer is installed dropping hammer on 1, location-plate 6 can be installed on 1 the hammer stem 102 of dropping hammer.Set nut 103 is enclosed within hammer stem 102 locking positioning plate 6 and tup 104 respectively.Drop hammer and overlapping a transparent casing 5 that can show height of the fall on 1 the hammer stem 102, the upper end of transparent casing 5 is connected with the guiding wheel seat 3 of supporting guide wheel 2.The fixed head 703 of actuating mechanism 7 is fixed together with guiding wheel seat 3, and the lower end of driving lever 701 and tongue type slide block 705 usefulness hinges are movably connected, and the right-hand member of tongue type slide block 705 is with preloading spring 706; Do not having external force to do stretching out guide pin bushing 704 and can pinning location-plate 6 of time spent tongue type slide block 705 left ends, this moment, driving lever 701 leaned against on the backing pin 702.Foot bottom at tripod 4 is provided with test board 10, material 9 to be measured is placed on the test board 10, charge type acceleration transducer 8 is installed in 1 bottom dropping hammer, the output terminal of acceleration transducer 8 connects the input end of charge amplifier 11, the output terminal of charge amplifier 11 links to each other with the input end of signals collecting case 12, inserts computing machine 13 then.
As shown in Figure 5, the software systems of computing machine 13 comprise signal input module, data recordin module, signal processing module and output module as a result.Signal input module is used to obtain response messages such as the acceleration, power of agricultural material impacting, data recordin module carries out discretize with simulating signal and converts digital quantity to, and be stored in the computing machine by form, by filtering in the signal processing module, spectrum analysis, extract response curve, parameters such as calculated response time, peak value, dominant frequency, as a result output module will calculate, the analysis result printout.
Of the present inventionly when detecting, tripod 4 is placed on around the test board 10, moves agricultural material 9 to be measured, be located at 1 the center of dropping hammer; Mentioning drops hammer 1 makes location-plate 6 be connected with actuating mechanism 7, observes 1 the height of drop of dropping hammer by transparent casing 5; Contract after the driving lever 7 of promotion actuating mechanism 7 makes tongue type slide block 705, discharge the agricultural material 9 that is placed on the test board 10 that drops hammer 1 pair and clash into, obtain the dynamic signal that is responded by the high impedance charge type acceleration transducer 8 that is installed in the tup 104; Utilize 11 pairs of response signals of charge amplifier to amplify, the signal after 13 pairs of amplifications of signals collecting case 12 and computing machine is gathered, is write down and stores.Agricultural material 9 impact response signals as shown in Figure 6, agricultural material 9 generation surrenders just this moment, with the acceleration signal converting to force signal that obtains, the power peak value that extracts first response signal is the moving yield force of paddy, the moving disrupture force in the time of can obtaining agricultural material 9 generation fragmentations equally.
The present invention can extensively use the detection of crop kernels dynamic perfromances such as paddy rice, wheat, corn, soybean, rape.
Claims (5)
1. agricultural material impacting characteristic detection device, it is characterized in that: drop hammer (1) passes angle sheave (2) and tripod (4) from top to bottom, drop hammer and overlapping a transparent casing (5) that can show height of the fall on (1), the upper end of transparent casing (5) is connected with the guiding wheel seat (3) of supporting guide wheel (2), and actuating mechanism (7) is fixed together with guiding wheel seat (3); Go up the location-plate (6) that installation can be adjusted (1) height that drops hammer in drop hammer (1); Foot bottom at tripod (4) is provided with test board (10), material to be measured (9) is placed on the test board (10), charge type acceleration transducer (8) is installed in bottom in drop hammer (1), the output terminal of acceleration transducer (8) connects the input end of charge amplifier (11), the output terminal of charge amplifier (11) links to each other with the input end of signals collecting case (12), inserts computing machine (13) then.
2. agricultural material impacting characteristic detection device according to claim 1, it is characterized in that: (1) bulb (101) by the top drops hammer, the tup (104) of bottom and intermediate connector hammer stem (102) are formed, charge type acceleration transducer (8) is installed in the centre of tup (104), and location-plate (6) is installed on the hammer stem (102).
3. agricultural material impacting characteristic detection device according to claim 1, it is characterized in that: the fixed head (703) and the guiding wheel seat (3) of actuating mechanism (7) are fixed together, the lower end of driving lever (701) and tongue type slide block (705) are movably connected, and the right-hand member of tongue type slide block (705) is with preloading spring (706); Do not having external force to do stretching out guide pin bushing (704) and can pinning location-plate (6) of time spent tongue type slide block (705) left end, driving lever this moment (701) leans against on the backing pin (702).
4. agricultural material impacting characteristic detection device according to claim 1 is characterized in that: computing machine (13) comprises signal input module, data recordin module, signal processing module and output module as a result.
5. an agricultural material impacting characteristic detecting method is characterized in that comprising the steps: in regular turn
A. tripod (4) is placed on test board (10) all around, moves material to be measured (9), be located at the center of (1) bottom of dropping hammer;
B. mention drop hammer (1), location-plate (6) is locked mutually with actuating mechanism (7), observe the height of drop of drop hammer (1) by transparent casing (5);
C. actuating mechanism (7) discharges when dropping hammer (1) agricultural material (9) that is placed on the test board (10) is clashed into, and obtains the dynamic signal that is responded with the high impedance charge type acceleration transducer (8) that is installed in the tup (104);
D. utilize charge amplifier (11) that response signal is amplified, signals collecting case (12) and computing machine (13) are gathered, are write down and store the signal after amplifying;
E. the signal input module in the computing machine (13) is used to obtain acceleration, the force-responsive information of agricultural material (9) bump, data recordin module carries out discretize with simulating signal and converts digital quantity to, and be stored in the computing machine by form, extract parameters such as response curve, calculated response time, peak value, dominant frequency by filtering in the signal processing module, spectrum analysis, as a result output module will calculate, the analysis result printout, the power peak value that extracts first response signal is the moving yield force of paddy, the moving disrupture force in the time of can obtaining paddy generation fragmentation equally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101923998A CN101216396B (en) | 2007-12-26 | 2007-12-26 | Agricultural material impacting characteristic test apparatus and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101923998A CN101216396B (en) | 2007-12-26 | 2007-12-26 | Agricultural material impacting characteristic test apparatus and method |
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| CN101216396A true CN101216396A (en) | 2008-07-09 |
| CN101216396B CN101216396B (en) | 2010-09-15 |
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| CN2007101923998A Expired - Fee Related CN101216396B (en) | 2007-12-26 | 2007-12-26 | Agricultural material impacting characteristic test apparatus and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458452A (en) * | 2014-11-21 | 2015-03-25 | 清华大学苏州汽车研究院（相城） | Compression and relaxation testing device |
| CN104964901A (en) * | 2015-05-26 | 2015-10-07 | 大连理工大学 | Granular material buffer performance measuring system |
| CN105784510A (en) * | 2016-04-21 | 2016-07-20 | 安徽农业大学 | Falling weight type nut mechanical characteristic parameter testing experiment table |
| CN105823673A (en) * | 2016-05-04 | 2016-08-03 | 长安大学 | Multifunctional vacuum loading test table for asphalt mixture |
| CN104198146B (en) * | 2014-08-14 | 2017-01-25 | 东北农业大学 | Agricultural material collision recovery coefficient test platform |
| CN107643220A (en) * | 2016-11-30 | 2018-01-30 | 国家安全生产监督管理总局化学品登记中心 | A kind of chemicals impact sensitivity experimental rig |
| CN108053902A (en) * | 2018-01-17 | 2018-05-18 | 上海核工程研究设计院有限公司 | A kind of containment structure damage monitoring device based on vibration |
| CN109870374A (en) * | 2019-01-23 | 2019-06-11 | 北京理工大学 | Explosion wave loading device |
| CN109932257A (en) * | 2019-04-19 | 2019-06-25 | 河南科技大学 | A kind of agricultural silique material is instantaneously crushed force checking device |
| CN110320127A (en) * | 2019-07-25 | 2019-10-11 | 中国农业大学 | A kind of cereal fragmentation sensitivity automatic detection device |
| CN113390735A (en) * | 2021-06-25 | 2021-09-14 | 东北农业大学 | Prediction method for grain breakage probability under single impact load |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2376409A1 (en) * | 1976-12-30 | 1978-07-28 | Agronomique Inst Nat Rech | Determining viscoelastic properties and hence quality of food prod. - with automatic appts. relating elapsed time to loading and thickness of sample |
| CN1217178C (en) * | 2003-07-10 | 2005-08-31 | 浙江大学 | Detecting method and device for fruit robustness |
-
2007
- 2007-12-26 CN CN2007101923998A patent/CN101216396B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198146B (en) * | 2014-08-14 | 2017-01-25 | 东北农业大学 | Agricultural material collision recovery coefficient test platform |
| CN104458452B (en) * | 2014-11-21 | 2017-07-07 | 清华大学苏州汽车研究院（相城） | A kind of compression stress relaxation experimental rig |
| CN104458452A (en) * | 2014-11-21 | 2015-03-25 | 清华大学苏州汽车研究院（相城） | Compression and relaxation testing device |
| CN104964901A (en) * | 2015-05-26 | 2015-10-07 | 大连理工大学 | Granular material buffer performance measuring system |
| CN105784510A (en) * | 2016-04-21 | 2016-07-20 | 安徽农业大学 | Falling weight type nut mechanical characteristic parameter testing experiment table |
| CN105823673B (en) * | 2016-05-04 | 2018-12-18 | 长安大学 | A kind of Multifunctional asphalt mixture vacuum load testing stand |
| CN105823673A (en) * | 2016-05-04 | 2016-08-03 | 长安大学 | Multifunctional vacuum loading test table for asphalt mixture |
| CN107643220A (en) * | 2016-11-30 | 2018-01-30 | 国家安全生产监督管理总局化学品登记中心 | A kind of chemicals impact sensitivity experimental rig |
| CN108053902A (en) * | 2018-01-17 | 2018-05-18 | 上海核工程研究设计院有限公司 | A kind of containment structure damage monitoring device based on vibration |
| CN109870374A (en) * | 2019-01-23 | 2019-06-11 | 北京理工大学 | Explosion wave loading device |
| CN109932257A (en) * | 2019-04-19 | 2019-06-25 | 河南科技大学 | A kind of agricultural silique material is instantaneously crushed force checking device |
| CN110320127A (en) * | 2019-07-25 | 2019-10-11 | 中国农业大学 | A kind of cereal fragmentation sensitivity automatic detection device |
| CN113390735A (en) * | 2021-06-25 | 2021-09-14 | 东北农业大学 | Prediction method for grain breakage probability under single impact load |
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| Publication number | Publication date |
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| CN101216396B (en) | 2010-09-15 |
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Application publication date: 20080709 Assignee: Wuxi Combine Harvester Co.,Ltd. Assignor: Jiangsu University Contract record no.: 2013320000134 Denomination of invention: Agricultural material impacting characteristic test apparatus and method Granted publication date: 20100915 License type: Exclusive License Record date: 20130318 |
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