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1. WO2020191786 - THREE-DEGREE-OF-FREEDOM HYBRID VIBRATION SCREENING MECHANISM AND CONTROL METHOD THEREFOR, AND HARVESTER

Publication Number WO/2020/191786
Publication Date 01.10.2020
International Application No. PCT/CN2019/080283
International Filing Date 29.03.2019
IPC
B07B 1/28 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens
B07B 1/42 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
B07B 1/46 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
46Constructional details of screens in general; Cleaning or heating of screens
A01F 12/44 2006.01
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
FTHRESHING; BALING OF STRAW, HAY OR THE LIKE; STATIONARY APPARATUS OR HAND TOOLS FOR FORMING OR BINDING STRAW, HAY OR THE LIKE INTO BUNDLES; CUTTING OF STRAW, HAY OR THE LIKE; STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
12Parts or details of threshing apparatus
44Grain cleaners; Grain separators
A01D 41/12 2006.01
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
DHARVESTING; MOWING
41Combines, i.e. harvesters or mowers combined with threshing devices
12Details of combines
CPC
A01D 41/12
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
DHARVESTING; MOWING
41Combines, i.e. harvesters or mowers combined with threshing devices
12Details of combines
A01F 12/448
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
FPROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
12Parts or details of threshing apparatus
44Grain cleaners; Grain separators
446Sieving means
448Sieve adjusting means
B07B 1/286
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
286with excentric shafts
B07B 1/42
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
B07B 1/46
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
46Constructional details of screens in general; Cleaning or heating of screens
Applicants
  • 江苏大学 JIANGSU UNIVERSITY [CN]/[CN]
Inventors
  • 赵湛 ZHAO, Zhan
  • 秦芳 QIN, Fang
Agents
  • 北京德崇智捷知识产权代理有限公司 JW IP LAW FIRM
Priority Data
201910222481.322.03.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) THREE-DEGREE-OF-FREEDOM HYBRID VIBRATION SCREENING MECHANISM AND CONTROL METHOD THEREFOR, AND HARVESTER
(FR) MÉCANISME HYBRIDE DE CRIBLAGE PAR VIBRATIONS À TROIS DEGRÉS DE LIBERTÉ ET PROCÉDÉ DE COMMANDE ASSOCIÉ, ET MOISSONNEUSE
(ZH) 一种三自由度混联振动筛分机构及控制方法与收获机
Abstract
(EN)
A three-degree-of-freedom hybrid vibration screening mechanism and a control method therefor, and a harvester, the screening mechanism comprising: a machine frame (1), a vibrating screen (7), a first drive mechanism, a second drive mechanism, a sensor (8), and a controller (24). Hydraulic motors (2, 15) are used for driving in parallel to implement two-degree-of-freedom rotation adjustment of the horizontal attitude and inclination angles of the screen surface of the vibrating screen (7). The vibrating screen (7) is driven by means of the first driving mechanism to perform single-degree-of-freedom reciprocating movement, so as to achieve the three-degree-of-freedom vibration adjustment of the screen surface. A vibration parameter control model is created by combining the theoretical analysis and tests. During operation, the sensor (8) installed at the tail of the vibrating screen (7) monitors the loss rate and distribution state of grains in real time. The horizontal attitude angle of the screen surface, the inclination angle of the screen surface, and the vibration frequency are adaptively optimized to facilitate the uniform and discrete distribution of materials on the screen surface, so that the screening efficiency of materials fed in a non-uniform manner can be effectively improved, and the grain loss rate can be reduced.
(FR)
L'invention concerne un mécanisme hybride de criblage par vibrations à trois degrés de liberté et un procédé de commande associé, ainsi qu'une moissonneuse, le mécanisme de criblage comprenant : un cadre de machine (1), un crible vibrant (7), un premier mécanisme d'entraînement, un second mécanisme d'entraînement, un capteur (8) et un dispositif de commande (24). Des moteurs hydrauliques (2, 15) sont utilisés pour l'entraînement en parallèle, pour mettre en œuvre un réglage de rotation à deux degrés de liberté des angles horizontaux d'attitude et d'inclinaison de la surface de crible du crible vibrant (7). Le crible vibrant (7) est entraîné au moyen du premier mécanisme d'entraînement pour effectuer un mouvement de va-et-vient à un seul degré de liberté, de façon à obtenir le réglage de vibration à trois degrés de liberté de la surface de crible. Un modèle de commande de paramètres de vibration est créé par combinaison de l'analyse théorique et des tests. Pendant le fonctionnement, le capteur (8) installé au niveau de la queue du crible vibrant (7) surveille le taux de perte et l'état de répartition de grains en temps réel. L'angle d'attitude horizontale de la surface du crible, l'angle d'inclinaison de la surface de crible et la fréquence de vibration sont optimisés de manière adaptative, pour faciliter la répartition uniforme et discrète de matières à la surface du crible, afin que l'efficacité de criblage de matières alimentées de manière non uniforme puisse être efficacement améliorée et que le taux de perte de grains puisse être réduit.
(ZH)
一种三自由度混联振动筛分机构及控制方法与收获机,包括机架(1)、振动筛(7)、第一驱动机构、第二驱动机构、传感器(8)和控制器(24);采用液压马达(2、15)并联驱动实现振动筛(7)筛面水平姿态角和倾角的二自由度转动调节,通过第一驱动机构驱动振动筛(7)作单自由度往复运动,从而实现筛面的三自由度振动调节;通过理论分析和试验相结合建立振动参数控制模型;在作业过程中,振动筛(7)尾部安装的传感器(8)实时监测籽粒损失率及分布状态,自适应优化调整筛面水平姿态角、筛面倾角和振动频率,以促使物料在筛面上能够均匀离散分布,可以有效提高物料在非均匀喂入情况下的筛分效率,降低籽粒损失率。
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