CN203661659U - Device for adjusting sieve piece opening degree of cleaning sieve of combine harvester - Google Patents
Device for adjusting sieve piece opening degree of cleaning sieve of combine harvester Download PDFInfo
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- CN203661659U CN203661659U CN201320833252.3U CN201320833252U CN203661659U CN 203661659 U CN203661659 U CN 203661659U CN 201320833252 U CN201320833252 U CN 201320833252U CN 203661659 U CN203661659 U CN 203661659U
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Abstract
The utility model provides a device for adjusting the sieve piece opening degree of a cleaning sieve of a combine harvester. The device mainly comprises a cleaning sieve frame, a vibrating plate, a cleaning sieve piece component, a tail sieve and a grain cleaning loss monitoring sensor. The vibrating plate, the cleaning sieve piece component and the tail sieve are sequentially fixed to the cleaning sieve frame from front to back. The grain cleaning loss monitoring sensor is installed at the tail end of the cleaning sieve frame. When the combine harvester works, the loss amount monitored by the grain cleaning loss monitoring sensor serves as sampling information, the sieve piece opening degree of the fish-scale cleaning sieve is adjusted through the a cleaning sieve piece opening degree adjusting mechanism according to a mathematic model established between grain cleaning loss and the sieve piece opening degree of the cleaning sieve, and therefore cleaning loss of the combine harvester is controlled within a specialized range. The device for adjusting the sieve piece opening degree of the cleaning sieve of the combine harvester is beneficial to improvements on not only intelligentializion of harvest machines in China and but also working efficiency and working quality of machines and tools, and has broad theoretical working significance and application prospects.
Description
Technical field
The present invention is a kind of adjusting device of combined harvester sorting screen sieve aperture, belongs to the intelligent control field of the design of combined harvester seed cleaning sieve and combined harvester.
Background technology
For improving harvest machinery cleaning efficiency, domestic scholars is actively developed research to harvest machinery with sorting screen.As the top sieve of cleaning relating to of patent (CN1817082) adopts longitudinal divisions combining structure, cleaning material according to difference has wire gauze sieve and lip(ped) sieve combination or stamped sieve and lip(ped) sieve combination.In patent (CN200938776), top sieve leading portion adopts long waist type stamped sieve, is staggered, and has better sieving area, has accelerated the saturating screen capacity of rape seed; Rear end is lip(ped) sieve, mainly as early as possible the fruit pod shell on compass screen surface and broken stem stalk is evicted from outside machine, and two Length Ratios are 1.2.These two kinds adopt the cleaning plant of sieve structure on combined type, and lip(ped) sieve sieve angle is fixed, and can not regulate according to current results situation, may cause the problems such as grain cleaning rate is low, cleaning loss is large.
The main direction of the international advanced combine development of high efficiency smart Hua Shi.On external advanced combined harvester, electronic information technology has obtained extensive utilization, can obtain the parameters such as cereal transfer rate after cereal instantaneous delivery, moisture content, vehicle gait of march, ceding of Taiwan height and fabric width and threshing, then adopt use processing technology, automatically adjust various running parameters according to the operation quality of combine, in enhancing productivity, percent of loss is controlled in prescribed limit, reduce fault rate, improve the time between failures of complete machine, constantly study novel monitoring technique and equipment simultaneously.Compared with these advanced technologies, the automatization level of China's combined harvester entirety also has larger gap, has seriously restricted the development of harvesting mechanization, and country also more and more payes attention to this deficiency, actively develops scientific research.Test is found, the aperture of sorting screen sieve is one of key factor affecting cleaning plant performance (as seed cleannes, grain loss etc.), the present stage adjusting of sieve aperture of combined harvester cleaning plant mainly relies on farm work personnel's experience to carry out, regulate sieve aperture by shutdown after observing the ground seed cleaning extent of damage, as can be seen here, the method sieve angle can not be regulated in time, causes cleaning loss to strengthen; Carrying out real-time adjusting according to current damaed cordition can not regulate in real time according to current damaed cordition, and the device that lip(ped) sieve sieve aperture regulates automatically has no report.
Summary of the invention
The present invention is when solving combined harvester farm work, because cleaning plant sieve aperture is improper, regulation not in time etc. causes cleaning loss excessive in situation, the difficult problem such as when sieve regulation process is loaded down with trivial details, consuming time, has invented a kind of combined harvester sorting screen sieve opening adjusting device.
The adjusting device of combined harvester sorting screen sieve aperture of the present invention, by cleaning screen frame 2, shuttle board 1, cleaning sieve sheet assembly 3, tail sheet 4, seed cleaning loss monitoring sensor 5 forms, and described shuttle board 1, cleaning sieve sheet assembly 3 and tail sheet 4 are fixed on successively and clean on screen frame 2 according to the order by after forward direction, and seed cleaning loss monitoring sensor 5 is arranged on the tail end of cleaning screen frame 2;
Described cleaning sieve sheet assembly 3 is made up of screen frame plate 301, connecting rod 302, connecting pin 303, active sieve 304, driven sieve 305, engaging lug 306, pull bar 307, release handle 308, electric pushrod 309, connecting pin 303 is the unequal U-shaped structure of two edge lengths, U-shaped long end connects screen frame plate 301, and short end connects connecting rod 302; Initiatively sieve 304 and driven sieve 305 are all connected on connecting rod 302, and initiatively sieve 304 is connected with pull bar 307 by engaging lug 306; Described release handle 308 is sector structure, fantail end connects electric pushrod 309, and covering of the fan end connects pull bar 307, and release handle 308 is connected to screen frame plate 301 by rotating shaft, described electric pushrod 309 drives the fantail end of release handle 308 to move back and forth, thereby drives release handle 308 to rotate.
The version of described active sieve 304, driven sieve 305 is shutter sieve or lip(ped) sieve.
When combined harvester work, the grain loss amount monitoring take seed cleaning loss monitoring sensor 5 is as input signal, according to the mathematical model between the seed cleaning loss of setting up and cleaning sieve sheet aperture, the aperture that regulates in real time cleaning sieve sheet, makes the damage control of combined harvester seed cleaning in prescribed limit.
Mathematical model between combined harvester seed cleaning loss quality and cleaning sieve sheet aperture is that paddy rice or the wheat just having gathered in take field on Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand is material, at the specified feed quantity W of combined harvester and different lip(ped) sieve aperture K
iunder depart from separating cleaning test, manually clean out whole cleaning loss seeds of discharging through tail sheet 4, with scales/electronic balance weighing, under same structure parameter, test repeats 3 times, averages, and obtains seed cleaning loss quality Q
i, then pass through nonlinear regression analysis, obtain
the main structure parameters of stand is identical with corresponding cleaning device of combined harvester.
Mathematical model between seed cleaning loss and grain loss monitoring sensor 5 monitored area seed amounts is also that take field, just paddy rice or the wheat of harvesting are material on Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand, set up by bench test, the method of setting up is: under the specified feed quantity of combined harvester, with different cleaning fan rotating speed V
i(i=1,2,3...) carries out the test of threshing separating cleaning, and the seed that tail sheet 4 is discharged and assorted remainder are divided between settling in an area and are of a size of
the gridding zonule of (width × length), wherein, d is tail sheet width, l is cleaning room effluent distributed areas length, m is the quantity along the gridding zonule of tail sheet width distribution, n is the number along the gridding zonule of cleaning room effluent collecting zone length direction, collect seed in each zonule and assorted more than, manually clean out the seed comprising in each zonule, and use respectively scales/electronic balance weighing, under same structure parameter, test repeats 3 times, average, account for the mass percent of total grain loss through calculating each gridding zonule internal loss seed quality.If the seed quality in (i, j) individual magazine is m
ij, loss seed gross mass is
the loss seed mass ratio in (i, j) individual magazine is d
ij:
Take tail sheet 4 widths as Y-axis, take cleaning room effluent distributed areas length direction as X-axis, the intersection point of tail sheet 4 widths and cleaning room effluent distributed areas length direction is initial point 0, sets up rectangular coordinate system; Seed mass ratio in each row magazine along Y direction is cumulative respectively, calculate the seed mass ratio d along X-axis within the scope of seed cleaning loss distribution
.j,
seed mass ratio in each row magazine along X-axis forward is cumulative respectively, calculate the seed mass ratio d distributing along Y-axis forward
i.?
use rank test method under different rotation speed of fan, the mass percent of each magazine internal loss seed carries out hypothesis test along the regularity of distribution of magazine X-direction and Y direction, find under different rotation speed of fan, the mass percent of each magazine internal loss seed is along the regularity of distribution there was no significant difference of magazine longitudinal direction and horizontal direction, rotation speed of fan on loss seed in the regularity of distribution at tail sheet rear portion without impact.
The seed mass ratio distributing to the seed mass ratio distributing along Y-axis forward with along X-axis forward carries out nonlinear data fitting, obtains respectively the distribution mathematical model of cleaning loss seed along tail sheet 4 widths (X-axis), s
f=8.06e
-y/8.8689-7.95427(0≤x≤d); Along the distribution mathematical model s of cleaning room effluent distributed areas length directions (Y-axis)
r=0.99411 (1-e
-4.92728 (x-0.06365)) (0≤x≤l); The proportionality coefficient of the shared total seed cleaning loss of monitored area seed amount is
Wherein, x
0, y
0for grain loss monitoring sensor installation site, a, the length that b is monitored area and width.And then set up the seed amount Q in monitored area
jwith total cleaning loss amount Q
zbetween mathematical model be Q
j=Q
z× u(0≤x≤d, 0≤y≤l).
Simultaneous Q
j=Q
z× u(0≤x≤d, 0≤y≤l),
and Q
i=Q
z3 mathematical models, just can obtain the monitoring variable Q of grain loss monitoring sensor 5
jand the relation between cleaning sieve sheet aperture K.
The effect that the present invention obtains: the seed cleaning loss amount that device of the present invention monitors take grain loss monitoring sensor is sample information, take the aperture of cleaning sieve sheet as controlled device, the aperture of sieve is carried out to feedback regulation, make the grain loss of combined harvester in job engineering maintain all the time minimum.The present invention is not only conducive to improve China's harvest machinery intelligent level, also helps and guarantees operation quality, improves facility operating efficiency, has theory significance and wide application prospect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is combined harvester sorting screen structure vertical view.
Fig. 2 is sorting screen sieve governor motion vertical view.
Fig. 3 is initiatively sieve front view of sorting screen.
Fig. 4 is the driven sieve front view of sorting screen.
In figure: 1, shuttle board, 2, cleaning sieve sheet assembly, 4, tail sheet, 5, seed cleaning loss monitoring sensor, 6, clean screen frame, 301, screen frame plate, 302, connecting rod, 303, connecting pin, 304, sieve initiatively, 305, driven sieve, 306, engaging lug, 307, pull bar, 308, release handle, 309, electric pushrod.
Embodiment
Embodiment 1:
As shown in Figure 1, 2, the adjusting device of combined harvester sorting screen sieve aperture of the present invention, by shuttle board 1, clean screen frame 2, cleaning sieve sheet assembly 3, tail sheet 4, seed cleaning loss monitoring sensor 5 forms, described shuttle board 1, cleaning sieve sheet assembly 3 and tail sheet 4 are fixed on successively and clean on screen frame according to the order by after forward direction, and seed cleaning loss monitoring sensor 5 is arranged on the tail end of cleaning screen frame 2; Clean screen frame 2 according to the preceding direction of shuttle board 1, be arranged in the cleaning room of combined harvester.
Described cleaning sieve sheet assembly 3 is made up of screen frame plate 301, connecting rod 302, connecting pin 303, active sieve 304, driven sieve 305, engaging lug 306, pull bar 307, release handle 308, electric pushrod 309, connecting pin 303 is the unequal U-shaped structure of two edge lengths, U-shaped long end connects screen frame plate 301, short end connects connecting rod 302, as shown in Figure 2, form the position that opening deviates from active sieve 304 and driven sieve 305.
Initiatively sieve 304 and driven sieve 305 are all connected on connecting rod 302, in the time that the angle of active sieve 304 rotates, will drive driven sieve 305 synchronously to rotate by connecting rod 302; Initiatively sieve 304 is connected with pull bar 307 by engaging lug 306; Described release handle 308 is sector structure, fantail end connects electric pushrod 309, and covering of the fan end connects pull bar 307, and release handle 308 is connected to screen frame plate 301 by rotating shaft, described electric pushrod 309 can drive the fantail end of release handle 308 to move back and forth, thereby drives release handle 308 to rotate.
The operation principle of cleaning sieve sheet assembly 2 is, when electric pushrod 309 drives the tail end of release handle 308 to produce motion, because release handle 308 is sector structure, and release handle 308 is provided with rotating shaft and is connected to screen frame plate 301, the straight-line displacement of tail end changes into the circumference motion of release handle 308 covering of the fan ends by rotating shaft, thereby the pull bar 307 that drives covering of the fan end to connect moves, pull bar 307 drives initiatively sieve 304 by engaging lug 306 again, and then initiatively sieve 304 of formation, the mass motion of driven sieve 305, realize the regulation function of cleaning sieve sheet assembly 3 cleaning sieve sheets.
Mathematical model between combined harvester seed cleaning loss quality and cleaning sieve sheet aperture is that paddy rice or the wheat just having gathered in take field on Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand is material, at the specified feed quantity W of combined harvester and different lip(ped) sieve aperture K
iunder depart from separating cleaning test, manually clean out whole cleaning loss seeds of discharging through tail sheet 4, with scales/electronic balance weighing, under same structure parameter, test repeats 3 times, averages, and obtains seed cleaning loss quality Q
i, then pass through nonlinear regression analysis, obtain
the main structure parameters of stand is identical with corresponding cleaning device of combined harvester.
Mathematical model between seed cleaning loss and grain loss monitoring sensor 5 monitored area seed amounts is also that take field, just paddy rice or the wheat of harvesting are material on Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand, set up by bench test, the method of setting up is: under the specified feed quantity of combined harvester, with different cleaning fan rotating speed V
i(i=1,2,3...) carries out the test of threshing separating cleaning, and the seed that tail sheet 4 is discharged and assorted remainder are divided between settling in an area and are of a size of
the gridding zonule of (width × length), wherein, d is tail sheet width, l is cleaning room effluent distributed areas length, m is the quantity along the gridding zonule of tail sheet width distribution, n is the number along the gridding zonule of cleaning room effluent collecting zone length direction, collect seed in each zonule and assorted more than, manually clean out the seed comprising in each zonule, and use respectively scales/electronic balance weighing, under same structure parameter, test repeats 3 times, average, account for the mass percent of total grain loss through calculating each gridding zonule internal loss seed quality.If the seed quality in (i, j) individual magazine is m
ij, loss seed gross mass is
the loss seed mass ratio in (i, j) individual magazine is d
ij:
Take tail sheet 4 widths as Y-axis, take cleaning room effluent distributed areas length direction as X-axis, the intersection point of tail sheet 4 widths and cleaning room effluent distributed areas length direction is initial point 0, sets up rectangular coordinate system; Seed mass ratio in each row magazine along Y direction is cumulative respectively, calculate the seed mass ratio d along X-axis within the scope of seed cleaning loss distribution
.j,
seed mass ratio in each row magazine along X-axis forward is cumulative respectively, calculate the seed mass ratio d distributing along Y-axis forward
i.?
use rank test method under different rotation speed of fan, the mass percent of each magazine internal loss seed carries out hypothesis test along the regularity of distribution of magazine X-direction and Y direction, find under different rotation speed of fan, the mass percent of each magazine internal loss seed is along the regularity of distribution there was no significant difference of magazine longitudinal direction and horizontal direction, rotation speed of fan on loss seed in the regularity of distribution at tail sheet rear portion without impact.
The seed mass ratio distributing to the seed mass ratio distributing along Y-axis forward with along X-axis forward carries out nonlinear data fitting, obtains respectively the distribution mathematical model of cleaning loss seed along tail sheet 4 widths (X-axis), s
f=8.06e
-y/8.8689-7.95427(0≤x≤d); Along the distribution mathematical model s of cleaning room effluent distributed areas length directions (Y-axis)
r=0.99411 (1-e
-4.92728 (x-0.06365)) (0≤x≤l); The proportionality coefficient of the shared total seed cleaning loss of monitored area seed amount is
Wherein, x
0, y
0for grain loss monitoring sensor installation site, a, the length that b is monitored area and width.And then set up the seed amount Q in monitored area
jwith total cleaning loss amount Q
zbetween mathematical model be Q
j=Q
z× u(0≤x≤d, 0≤y≤l).
Simultaneous Q
j=Q
z× u(0≤x≤d, 0≤y≤l),
with Q
j=Q
i3 mathematical models, just can obtain the monitoring variable Q of grain loss monitoring sensor 5
jand the relation between cleaning sieve sheet aperture K.
Determine the monitoring variable Q of suitable grain loss monitoring sensor (5)
j, the formula obtaining according to step 3, obtains corresponding cleaning sieve sheet aperture K
i, and cleaning sieve sheet aperture is regulated.
Initiatively the version of sieve 304, driven sieve 305 is shutter sieve or lip(ped) sieve.
Claims (2)
1. the adjusting device of a combined harvester sorting screen sieve aperture, it is characterized in that: by cleaning screen frame (2), shuttle board (1), cleaning sieve sheet assembly (3), tail sheet (4), seed cleaning loss monitoring sensor (5) composition, described shuttle board (1), cleaning sieve sheet assembly (3) and tail sheet (4) are fixed on successively and clean screen frame (2) above according to the order by after forward direction, and seed cleaning loss monitoring sensor (5) is arranged on the tail end of cleaning screen frame (2);
Described cleaning sieve sheet assembly (3) is made up of screen frame plate (301), connecting rod (302), connecting pin (303), active sieve (304), driven sieve (305), engaging lug (306), pull bar (307), release handle (308), electric pushrod (309), connecting pin (303) is the unequal U-shaped structure of two edge lengths, U-shaped long end connects screen frame plate (301), and short end connects connecting rod (302); Initiatively sieve (304) and driven sieve (305) are all connected to connecting rod (302) above, and initiatively sieve (304) is connected with pull bar (307) by engaging lug (306); Described release handle (308) is sector structure, fantail end connects electric pushrod (309), covering of the fan end connects pull bar (307), release handle (308) is connected to screen frame plate (301) by rotating shaft, described electric pushrod (309) drives the fantail end of release handle (308) to move back and forth, thereby drives release handle (308) rotation.
2. the adjusting device of combined harvester sorting screen sieve aperture according to claim 1, is characterized in that: the version of described active sieve (304), driven sieve (305) is shutter sieve or lip(ped) sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833252.3U CN203661659U (en) | 2013-12-16 | 2013-12-16 | Device for adjusting sieve piece opening degree of cleaning sieve of combine harvester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833252.3U CN203661659U (en) | 2013-12-16 | 2013-12-16 | Device for adjusting sieve piece opening degree of cleaning sieve of combine harvester |
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|---|---|
| CN203661659U true CN203661659U (en) | 2014-06-25 |
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|---|---|---|---|
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103688684A (en) * | 2013-12-16 | 2014-04-02 | 江苏大学 | Adjusting device and adjusting method for grading sieve piece opening of combine harvester |
| CN106508257A (en) * | 2016-09-26 | 2017-03-22 | 江苏大学 | Combined harvester capable of conducting self-adaptive regulation and self-adaptive regulation method |
| CN106717594A (en) * | 2016-12-27 | 2017-05-31 | 江苏大学 | A kind of combined harvester sorting screen inclination angle self-checking device |
| CN107983644A (en) * | 2017-12-21 | 2018-05-04 | 山东理工大学 | A kind of imitative Patterns of Placoid Scales of Sharks adjustable-angle lip(ped) sieve |
| US10143135B2 (en) * | 2015-03-04 | 2018-12-04 | Jiangsu University | Combine harvester cleaning control and cleaning method |
| WO2021062505A1 (en) | 2019-09-30 | 2021-04-08 | LINDENMAYR DÖWICH, Marta | Scale for a grain screen, adjustable grain screen and method for adjusting scales for a grain screen |
| US11375662B2 (en) * | 2019-06-12 | 2022-07-05 | Cnh Industrial America Llc | Apparatus and method for monitoring grain content within a tailings system of an agricultural harvester |
| CN114731851A (en) * | 2022-02-25 | 2022-07-12 | 农业农村部南京农业机械化研究所 | Adjustable cleaning system of soybean harvester |
| US11877538B1 (en) | 2022-08-30 | 2024-01-23 | Calmer Holding Company, Llc | Threshing grains and legumes utilizing concaves with adjustable openings |
| USD1031793S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Separating grate |
| USD1031791S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Straight bar concave |
| USD1031792S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Round bar concave |
| USD1032666S1 (en) | 2022-08-30 | 2024-06-25 | Calmer Holding Company, Llc | MOG limiting subassembly for combine concave |
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2013
- 2013-12-16 CN CN201320833252.3U patent/CN203661659U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103688684A (en) * | 2013-12-16 | 2014-04-02 | 江苏大学 | Adjusting device and adjusting method for grading sieve piece opening of combine harvester |
| US10143135B2 (en) * | 2015-03-04 | 2018-12-04 | Jiangsu University | Combine harvester cleaning control and cleaning method |
| CN106508257A (en) * | 2016-09-26 | 2017-03-22 | 江苏大学 | Combined harvester capable of conducting self-adaptive regulation and self-adaptive regulation method |
| CN106717594B (en) * | 2016-12-27 | 2023-09-22 | 江苏大学 | Automatic inclination angle adjusting device for cleaning screen of combine harvester |
| CN106717594A (en) * | 2016-12-27 | 2017-05-31 | 江苏大学 | A kind of combined harvester sorting screen inclination angle self-checking device |
| CN107983644A (en) * | 2017-12-21 | 2018-05-04 | 山东理工大学 | A kind of imitative Patterns of Placoid Scales of Sharks adjustable-angle lip(ped) sieve |
| CN107983644B (en) * | 2017-12-21 | 2021-04-13 | 山东理工大学 | Shark scale-imitating angle-adjustable type fish scale screen |
| US11375662B2 (en) * | 2019-06-12 | 2022-07-05 | Cnh Industrial America Llc | Apparatus and method for monitoring grain content within a tailings system of an agricultural harvester |
| WO2021062505A1 (en) | 2019-09-30 | 2021-04-08 | LINDENMAYR DÖWICH, Marta | Scale for a grain screen, adjustable grain screen and method for adjusting scales for a grain screen |
| CN114731851A (en) * | 2022-02-25 | 2022-07-12 | 农业农村部南京农业机械化研究所 | Adjustable cleaning system of soybean harvester |
| US11877538B1 (en) | 2022-08-30 | 2024-01-23 | Calmer Holding Company, Llc | Threshing grains and legumes utilizing concaves with adjustable openings |
| USD1031793S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Separating grate |
| USD1031791S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Straight bar concave |
| USD1031792S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Round bar concave |
| USD1032666S1 (en) | 2022-08-30 | 2024-06-25 | Calmer Holding Company, Llc | MOG limiting subassembly for combine concave |
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