CN1745909A - Adjustable seed gravity screening machine on-line - Google Patents
Adjustable seed gravity screening machine on-line Download PDFInfo
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- CN1745909A CN1745909A CN 200510029652 CN200510029652A CN1745909A CN 1745909 A CN1745909 A CN 1745909A CN 200510029652 CN200510029652 CN 200510029652 CN 200510029652 A CN200510029652 A CN 200510029652A CN 1745909 A CN1745909 A CN 1745909A
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- working face
- inclination angle
- drive motors
- connecting rod
- screening machine
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Abstract
A full-state in-line adjustable gravitational seed-screening machine with in-line regulation of vibration frequency and inclination is composed of three working planes, crank mechanism, 4 leaf springs, 2 connecting rods, 4 corner hinges, drive motor and frequency converter. The first working plane is elastically installed on the second one via 4 leaf springs. The second working plane is fixed to the third one via two corner hinges and the first connecting rod. The third working plane is fixed to the base of polishing machine via another two corner hinges and the second connecting rod.
Description
Technical field
What the present invention relates to is a kind of equipment of agricultural machinery technological field, specifically is a kind of machine that seed is carried out the gravity screening.
Background technology
The seed gravity separation carries out sorting according to weight, size, the density of seed to seed, is irreplaceable important step in the seed processing processing procedure.Its basic principle is: impact by the trace to seed, make seed obtain the initial velocity of flight aloft, initial velocity is relevant with the weight of seed; Seed is subjected to the acting in conjunction of gravity and air drag aloft, and direction and distance that the size of seed, weight, density decision seed aloft leap are so can obtain the seed of different size weight, size and density on different directions and distance.Current seed gravity screening machine all is to adopt following theory of mechanics to realize above-mentioned assorting room.Promptly at first drive the double vibrations of sifting bed, make seed obtain initial impact speed by crankshaft eccentric mechanism and flexible strip.In order to reduce to be deposited on the sifting bed because of seed, frictional force influence between each seed, ensure that seed obtains enough initial flying speeds, generally will give an amount of blast at the fabric sifting bed back side makes seed be in " suspension " state, to reduce frictional influence, secondly by giving the certain inclination angle of sifting bed (front and back to, about to), guarantee that seed has enough flight differentiation distances, makes different seeds to fall into exactly and is located in their storage channel separately of sifting bed edge.Because different types of seed size, weight, density difference are very big, and in seed often with impurity, particle, therefore utilize online adjustment sifting bed vibration frequency, blast and inclination angle to improve sorting quality and efficient.
Through to the new discovery of looking into of prior art, the KD120-400 type gravity seed cleaner of German Petkus Wutha company is the most advanced in the similar machine in the present world.It drives sifting bed reed double vibrations by the crank eccentric mechanism; By regulating the vibration frequency adjustment that the degree of tightness that connects belt between motor and the crank realizes sifting bed; The adjustment of suspension blast realizes by the opening degree of control fan outlet.Find that through practical operation there is following shortcoming in this gravity seed screening machine: during machine run, regulate that rotating disk and the handle to the inclination angle is in vibrational state about sifting bed, rotating disk can't be contacted and handle is regulated vibration parameters.Even when some specific seed being carried out the low speed screening, rotary turnplate is regulated the vibration frequency that the inclination angle can influence the sifting bed framework.Secondly, the adjustment of sifting bed vibration frequency is passed through the degree of tightness realization of the connection belt of adjustment motor and the eccentric machine of crank.And according to the safety regulation for operations to machine, this adjusting must be carried out under lower-speed state, so be the transient process of a variable speed when regulating, differs bigger with steady-state speed after regulating.Process is gathered in the examination that often needs long period during practical operation.Therefore it is very low to adjust efficient.
Summary of the invention
The present invention is directed to deficiency of the prior art, a kind of adjustable seed gravity screening machine on-line be provided, make its solve about sifting bed can not online adjustment to inclination angle and sifting bed vibration frequency problem, the easy-to-operate of parameter adjustment, the efficient height, accuracy is good, helps applying.
The present invention is achieved by the following technical solutions, comprising: three working faces, crank mechanism, four spring leafs, two connecting rods, four turning hinges, drive motors and frequency converters.Wherein, three working faces, crank mechanism, four spring leafs, two connecting rods, four turning hinges, drive motors constitute three plane frame for movements.
First working face flexibly is installed on second working face by four spring leafs; Drive motors is installed on second working face rigidly, and drive motors when rotation, first working face will move back and forth about under the effect of the crank mechanism of the runner that connects it and drive motors; Second working face is fixed on the 3rd working face by first, second turning hinge and first connecting rod, adjusts the angle of two armed levers of first connecting rod and just can adjust the front and back of first working face to the inclination angle; The 3rd working face is fixed on the pedestal of polishing machine by the 3rd, the 4th turning hinge and second connecting rod, adjusts the angle of two armed levers of second connecting rod and just can adjust all around of first working face to the inclination angle.
Frequency converter is a three-phase alternating current origin system that output frequency is adjustable, by regulating the output frequency of frequency converter, just can regulate the rotating speed that is installed in the drive motors on second working face, thereby finally regulate the reciprocating frequency of first working face.
The present invention is by setting up three working faces, and with the vibration of sifting bed, front and back are adjusted to the inclination angle, about adjust to the inclination angle full decoupled.Wherein, first plane (sifting bed) mainly the crank eccentric stiffener drive and the constraint of reed under do about to double vibrations, second plane is used to adjust before and after the sifting bed to the inclination angle, the 3rd plane is used to adjust about sifting bed to the inclination angle.The rotating speed of Frequency Converter Control drive motors is realized the stepless online adjusting of sifting bed vibration frequency.Because second, third working face is the non-vibration face, all can online independent the adjustment.By statics Analysis as can be known, because first working face is installed on second working face by four spring leafs, the front and back of first working face change to the inclination angle front and back just equal second working face to about change to the inclination angle, and the angle of two armed levers by adjusting the connecting rod that supports second working face can be regulated the front and back of second working face to the inclination angle.In like manner, after the connecting rod that supports second working face is fastening, about second working face to the inclination angle change just equal the 3rd working face about change to the inclination angle, and the angle of two armed levers by adjusting the connecting rod that supports the 3rd working face can regulate the 3rd working face about to the inclination angle.Therefore, the front and back by adjusting second working face to the front and back that can realize first working face to the inclination angle about inclination angle and the 3rd working face to the inclination angle and about to the adjustment at inclination angle.The reciprocating frequency of first working face is by the rotating speed decision of drive motors, the adjustment at working face inclination angle does not influence vibration parameters, thereby realized the adjustment decoupling zero at vibration and inclination angle, overcome original technology medium frequency and regulated and the interactional shortcoming of tilt adjustment.The rotating speed of adjusting drive motors only need be regulated the frequency values setting in the frequency converter, has therefore realized the online adjusting of vibration frequency parameter.
Compared with prior art, the present invention's three plane frame for movements have increased by two working faces that do not participate in vibrating than monoplane frame for movement, have realized the adjustment decoupling zero at vibration and inclination angle.Frequency converter is realized online adjusting vibration frequency, accuracy and safe, and safe ready by the rotating speed of control drive motors.The present invention can online adjustment sifting bed vibration frequency and inclination angle, helps improving seed separation quality and efficient.
Description of drawings
Fig. 1 overall structure schematic diagram of the present invention
The specific embodiment
As shown in Figure 1, the present invention includes: working face 1,2,3, crank mechanism 4, spring leaf 5,6,7,8, connecting rod 9,10, turning hinge 11,12,13,14, drive motors 15, frequency converter 16.
Working face 1 flexibly is installed on the working face 2 by four spring leafs 5,6,7,8; Crank mechanism 4 is connected with the runner of drive motors 15; Drive motors 15 is installed on the working face 2 rigidly, and during drive motors 15 rotations, working face 1 will move back and forth about under the effect of crank mechanism 4; Working face 2 is fixed on the working face 3 by turning hinge 11,12 and connecting rod 9, adjusts the angle of two armed levers of connecting rod 9 and just can adjust the front and back of working face 2 to the inclination angle; Working face 3 is fixed on the pedestal of polishing machine by turning hinge 13,14 and connecting rod 10, the angle of adjusting two armed levers of connecting rod 10 just can adjust working face 3 about to the inclination angle.The output of frequency converter 16 connects the input of drive motors 15, the reciprocating frequency that the rotating speed of control drive motors 15 is regulated working face 1.
Because working face 2 and 3 is the non-vibration face, all can independently adjust.Because working face 1 is installed on the working face 2 by four spring leafs, the front and back of working face 1 to about to the inclination angle change the front and back just equal working face 2 to about change to the inclination angle, and the angle of two armed levers of the connecting rod 9 by adjusting support works plane 2 can be regulated the front and back of working face 2 to the inclination angle.In like manner, after the connecting rod 9 on support works plane 2 is fastening, about working face 2 to the inclination angle change just equal working face 3 about change to the inclination angle, and the angle of two armed levers of the connecting rod 10 by adjusting support works plane 3 can be regulated the front and back of working face 3 to the inclination angle.Therefore, the front and back by adjusting working face 2 to the front and back that can realize working face 1 to the inclination angle about inclination angle and working face 3 to the inclination angle and about to the adjustment at inclination angle.The reciprocating frequency of working face 1 is by the rotating speed decision of drive motors 15, the rotating speed of adjusting drive motors 15 only need be regulated the frequency values setting in the frequency converter 16, the adjustment at working face 1 inclination angle does not influence vibration parameters, thereby has realized the adjustment decoupling zero at vibration and inclination angle.
Claims (6)
1, a kind of adjustable seed gravity screening machine on-line, comprise: working face (1), crank mechanism (4), spring leaf (5,6,7,8), connecting rod (9,10), turning hinge (11,12,13,14), drive motors (15), it is characterized in that, also comprise: working face (2,3), frequency converter (16), working face (1) is by four spring leafs (5,6,7,8) flexibly be arranged on the working face (2), crank mechanism (4) is connected with the runner of drive motors (15), drive motors (15) is arranged on the working face (2) rigidly, working face (2) is by turning hinge (11,12) and connecting rod (9) be fixed on the working face (3), working face (3) is by turning hinge (13,14) and connecting rod (10) be fixed on the pedestal of polishing machine, frequency converter (16) connects drive motors (15).
2, adjustable seed gravity screening machine on-line according to claim 1, it is characterized in that, the output of frequency converter (16) connects the input of drive motors (15), the reciprocating frequency that the rotating speed of control drive motors (15) is regulated working face (1).
According to claim 1 or 2 described adjustable seed gravity screening machine on-lines, it is characterized in that 3, during drive motors (15) rotation, working face (1) moves back and forth about under the effect of crank mechanism (4).
4, adjustable seed gravity screening machine on-line according to claim 1, it is characterized in that, working face (2,3) is the non-vibration face, all can independently adjust, front and back by adjusting working face (2) to about inclination angle and working face (3) to the inclination angle, the front and back of promptly realizing working face (1) to the inclination angle and about to the adjustment at inclination angle.
According to claim 1 or 4 described adjustable seed gravity screening machine on-lines, it is characterized in that 5, the front and back of working face (1) are to the adjustment at inclination angle, the angle of two armed levers by adjusting connecting rod (9) realizes.
According to claim 1 or 4 described adjustable seed gravity screening machine on-lines, it is characterized in that 6, to the adjustment at inclination angle, the angle of two armed levers by adjusting connecting rod (10) realizes about working face (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100296529A CN100352564C (en) | 2005-09-15 | 2005-09-15 | Adjustable seed gravity screening machine on-line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100296529A CN100352564C (en) | 2005-09-15 | 2005-09-15 | Adjustable seed gravity screening machine on-line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1745909A true CN1745909A (en) | 2006-03-15 |
| CN100352564C CN100352564C (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100296529A Expired - Fee Related CN100352564C (en) | 2005-09-15 | 2005-09-15 | Adjustable seed gravity screening machine on-line |
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| CN (1) | CN100352564C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950105A (en) * | 2012-10-13 | 2013-03-06 | 布勒(常州)机械有限公司 | Movable type small material feed port vibration screen |
| CN105478350A (en) * | 2015-12-28 | 2016-04-13 | 上海交通大学 | Online dynamic adjusting device for two-dimensional inclination angles of vibratory sifting bed |
| CN106238316A (en) * | 2016-08-17 | 2016-12-21 | 安徽鼎恒再制造产业技术研究院有限公司 | One pushes away shakes formula welding agent screening plant |
| CN108499849A (en) * | 2018-07-03 | 2018-09-07 | 金陵科技学院 | A kind of novel vibrating bounce screen |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100539A (en) * | 1989-11-02 | 1992-03-31 | Sizetec, Inc. | Dual-screen particle sizing apparatus and method |
| CN2192403Y (en) * | 1994-05-27 | 1995-03-22 | 黑龙江省农业机械工程科学研究院 | Concentration grader for soybean |
| CN1096309C (en) * | 1997-01-02 | 2002-12-18 | 北京清华天同科技有限公司 | Screenless vibrator separator |
| CN2386897Y (en) * | 1999-06-17 | 2000-07-12 | 黑龙江省农垦总局九三科学研究所 | Slope belt type seed sorting machine |
| CN1308093C (en) * | 2004-12-20 | 2007-04-04 | 天津大学 | Double super stable energy saving screen |
-
2005
- 2005-09-15 CN CNB2005100296529A patent/CN100352564C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950105A (en) * | 2012-10-13 | 2013-03-06 | 布勒(常州)机械有限公司 | Movable type small material feed port vibration screen |
| CN102950105B (en) * | 2012-10-13 | 2015-05-20 | 布勒(常州)机械有限公司 | Movable type small material feed port vibration screen |
| CN105478350A (en) * | 2015-12-28 | 2016-04-13 | 上海交通大学 | Online dynamic adjusting device for two-dimensional inclination angles of vibratory sifting bed |
| CN106238316A (en) * | 2016-08-17 | 2016-12-21 | 安徽鼎恒再制造产业技术研究院有限公司 | One pushes away shakes formula welding agent screening plant |
| CN106238316B (en) * | 2016-08-17 | 2019-12-31 | 安徽鼎恒再制造产业技术研究院有限公司 | Push-swing type welding flux screening device |
| CN108499849A (en) * | 2018-07-03 | 2018-09-07 | 金陵科技学院 | A kind of novel vibrating bounce screen |
| CN108499849B (en) * | 2018-07-03 | 2023-04-07 | 金陵科技学院 | Novel vibration bouncing screen |
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| Publication number | Publication date |
|---|---|
| CN100352564C (en) | 2007-12-05 |
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Granted publication date: 20071205 Termination date: 20100915 |