CN103416169A - Air screen type separation device test table - Google Patents

Air screen type separation device test table Download PDF

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Publication number
CN103416169A
CN103416169A CN2012105166926A CN201210516692A CN103416169A CN 103416169 A CN103416169 A CN 103416169A CN 2012105166926 A CN2012105166926 A CN 2012105166926A CN 201210516692 A CN201210516692 A CN 201210516692A CN 103416169 A CN103416169 A CN 103416169A
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axle
combination
power input
sorting screen
unit
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CN103416169B (en
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廖庆喜
陈立
廖宜涛
丁幼春
汲文峰
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Huazhong Agricultural University
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Huazhong Agricultural University
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Abstract

The invention belongs to the field of harvest machinery of agricultural machinery, in particular to an air screen type separation device test table which is characterized by comprising a test table support, a centrifugal fan assembly, a suction pipeline, a three-way pipe assembly, an air flow separation tube, a lifting auger assembly, a separation screen assembly, a material inlet hopper, a grass discharging port, a material collection hopper, a transition shaft assembly, a power input motor, a regulation frequency converter and the like. The air screen type separation device test table adopts a centrifugal air flow separation and rotary screening combined separation theory, can finish functions of lifting threshed materials, separating light impurities through air flow, separating large impurities and collecting grains in one step, can perform experimental study on separation and cleaning rate and grain loss rate, and can perform optimization experiment on factors capable of affecting the separation property. The air screen type separation device test table is simple in structure, compact in distribution, small in size, light in weight, convenient to use and operate and high in measuring accuracy and can be applied to separation operation and separation performance experimental study of different threshed objects of oilseed rapes, rice and wheat.

Description

A kind of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand
Technical field
The invention belongs in agricultural machinery and gather in the crops technical field, a kind of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand specifically, for the technology of cleaning and the experimental study thereof of the different emersion objects such as combining rape, water paddy and wheat class.
Background technology
Rapeseed plants is tall and big, the stem stalk is sturdy and branch amount is many, between branch, mutually be wound around staggered, angle fruit levels maturity difference is large, the very easily fried pod of ripe angle fruit, its unique biological property causes rape combining technical difficulty large, there are minute standing grain, cutting, a threshing, separate, clean difficulty, the problem such as percent of loss, percentage of damage, percentage of impurity are higher.Current domestic rape combined harvester is to convert on traditional rice-wheat combine harvester basis mostly, the function such as mainly complete rape cutting, threshing, clean.Cleaning plant is the important component part of rape combined harvester, cleans operation essential and most important, directly has influence on the important technology index qualities such as clean rate, percent of loss, productivity ratio.The emersion object material characteristic is the principal element that affects sorting performance, and cleaning operation needs emphasis to consider the material characteristic difference between the different constituents of emersion object.The normal cleaning principle adopted mainly contains two classes: utilize different component material air dynamic behaviour difference to adopt pure air flow cleaning; Utilize seed and assorted complementary characteristic difference to adopt air-flow to coordinate and clean with vibratory sieve, wherein latter's application is comparatively general.
In recent years, the cleaning plant extensively adopted is of a great variety, mainly contains three kinds of forms: fan-type, pneumatic jig combined type and air-flow scourclean formula.The pneumatic jig combined type cleans that the cleannes of rear seed are high, the advantages such as grain loss is little, strong adaptability because it is cleaned, and rice wheat emersion object is had to adaptability, at home and abroad on most of combined harvesters, is widely applied.As adding vibrating screen separator device, blower fan formed by a centrifugal blower with single exhaust passage and two-layer or three layers of reciprocating plane vibrations sieve, sieve shake and the mating reaction of compass screen surface air-flow realize cleaning, but its huge structure is complicated, vibration is large, easily cause the vibration of machine and becoming flexible of junction, and, when material is wet, sieve performance and reliability are poor.For rape when results, clean effect in order to improve the rape emersion object, domestic cleaning plant has been carried out to a large amount of designs repackings.Some type has installed cross flow fan additional as the rape reaping machine of Modern Agriculture dress Huzhou 200 repackings, and it is large that it cleans air flow rate, and speed is higher, be evenly distributed, and cleans successful and improves; Guilin-3 rape combined harvester is replaced by the encryption stamped sieve to former lip(ped) sieve; Fertile 2002 type rape combined harvesters adopt centrifugal blowers to add the form of wire gauze sieve, lip(ped) sieve, to reduce percentage of impurity.Some type, in order further to reduce percentage of impurity and percent of loss, has also installed secondary screw feeder and afterbody collection tanker etc. additional.Above improvement only is confined to select or changes be suitable for sieve or the blower fan that the rape emersion object is cleaned, because rape emersion object material characteristic is comparatively complicated, pod shells etc. are assorted remaining more, its special material characteristic is given and follow-uply to be cleaned operation and bring very large difficulty, the rape machine time receiving still ubiquity to clean clean rate on the low side, grain loss is also larger, cleans effect not obvious, causes the rape emersion object to be cleaned and fails so far better to be solved.
The knockdown Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand of screening is cleaned and turned round to a kind of centrifugal flow that the present invention proposes, it can be cleaned to Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve the experimental study of clean rate and grain loss rate, also can be optimized test to the factor that affects Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve sorting performance quality.Adopt centrifugal flow to clean and turn round the knockdown Winnowing type cleaning principle of screening, changed the technological process of traditional combined harvester cleaning plant, blower fan with respect to the huge structure complexity adds vibrating screen separator device, structure is greatly simplified, there is good air flow cleaning and screening capacity, not only effectively reduce the grain loss rate, can also effectively siphon away more than light the mixing in emersion object, thereby improve, clean clean rate.
Summary of the invention
The object of the invention is to overcome the defect of prior art, provide a kind of centrifugal flow to clean and turn round the knockdown Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand of screening, it can be cleaned to Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve the experimental study of clean rate and grain loss rate, also can be optimized test to the factor that affects Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve sorting performance quality.This testing stand can once complete promote emersion object, air flow cleaning gently assorted remaining, screening large assorted remaining, collect the function such as seed, integrated level of the present invention is high, rape emersion object stroke is short, the technique compactness, flow process is short.The present invention adopts centrifugal flow to clean and turn round the knockdown Winnowing type cleaning principle of screening, not only effectively reduce the grain loss rate, can also effectively improve and clean clean rate, and simple in structure, compact in design, volume is little, lightweight, reliable operation, configuration conveniently, have a extensive future as the harvest machinery cleaning plant.
The present invention realizes by following technical proposal:
The applicant has developed a kind of testing stand for Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve, and it comprises testing stand support 1, centrifugal blower combination 9, aspirating air pipe 10, three-way pipe combination 11, air flow cleaning cylinder 12, promote screw feeder combination 13, transfer passage 14, feed hopper 20, aggregate bin 15, sorting screen combination 16, straw outlet 17, case 18, First Transition axle combination 22, the second transition axis combination 19, centrifugal blower axle power input electromotor 8, promote screw conveyor shaft power input electromotor 2, sorting screen axle power input electromotor 21, centrifugal blower axle rotation speed regulating and controlling frequency converter 5, promote screw conveyor shaft rotation speed regulating and controlling frequency converter 6, sorting screen axle rotation speed regulating and controlling frequency converter 7 and power distributing cabinet 4, wherein said testing stand support 1 adopts shaped steel to be welded, and it comprises the second transition axis sectional shelf-unit 23, sorting screen sectional shelf-unit 24, sorting screen assembly power input support of motor 25, promote screw feeder sectional shelf-unit 26, case support 27 and First Transition axle sectional shelf-unit 28, centrifugal blower sectional shelf-unit 30, electric distribution box bracket 31, promote screw feeder assembly power input support of motor 32, described the second transition axis sectional shelf-unit 23 is arranged on the left front below of testing stand support 1, is vertically arranged with adjustable installing hole on it, described sorting screen sectional shelf-unit 24 is arranged on the front left side of testing stand support 1, is vertically arranged with adjustable installing hole on it, described sorting screen assembly power input support of motor 25 is arranged on the left back below of testing stand support 1, is vertically arranged with adjustable installing hole on it, described lifting screw feeder sectional shelf-unit 26 is arranged on the left rear side of testing stand support 1, is vertically arranged with adjustable installing hole on it, described case support 27 is arranged on the upper right side of sorting screen sectional shelf-unit 24, described First Transition axle sectional shelf-unit 28 be arranged on sorting screen assembly power input support of motor 25 directly over, be vertically arranged with adjustable installing hole on it, described centrifugal blower sectional shelf-unit 30 is arranged on the right front top of testing stand support 1, is horizontally arranged with adjustable installing hole on it, described electric distribution box bracket 31 is arranged on the right lateral side of testing stand support 1, described lifting screw feeder assembly power input support of motor 32 is arranged on the right back below of testing stand support 1, is vertically arranged with adjustable installing hole on it,
Described centrifugal blower combination 9 comprises casing 33, radially straight leaf formula impeller 34, cone cartridge type suction inlet 35 and air outlet 36, the axis of described casing 33, radially straight leaf formula impeller 34 and cone cartridge type suction inlet 35 all overlaps with the axis of centrifugal blower axle power input electromotor 8, and described centrifugal blower combination 9 is arranged on the left side of centrifugal blower sectional shelf-unit 30; Described lifting screw feeder combination 13 be arranged on promote screw feeder sectional shelf-unit 26 directly over; Described transfer passage 14 is arranged on the lifting screw feeder by gemel connection and combines 13 tops; Described air flow cleaning cylinder 12 and transfer passage 14 are by being welded and fused; Described three-way pipe combination 11 comprises air door 37 and three-way pipe 38, be welded on air flow cleaning cylinder 12 directly over; Described air door 37 is bolted and is arranged on three-way pipe 38, and air door 37 apertures are 0 ~ 90 ° and are preferably 5 ~ 85 °; Described aspirating air pipe 10 is for connecting centrifugal blower combination 9 and three-way pipe combination 11; Described feed hopper 20 is welded on the below that promotes screw feeder combination 13; Described aggregate bin 15 is bolted and is arranged on case support 27;
Described sorting screen combination 16 comprises screen frame (unit) 39, sieve 40, triangular support base 41, sorting screen axle 42, bearing block 43 and sorting screen axle power input bevel gear 44, and the axis of described screen frame (unit) 39, sieve 40, triangular support base 41, bearing block 43, sorting screen axle power input bevel gear 44 all overlaps with the axis of sorting screen axle 42; Described bearing block 43 is bolted and is arranged on directly over sorting screen sectional shelf-unit 24; 41 of described triangular support bases are in air flow cleaning cylinder 12; Described sorting screen axle 42 is arranged between triangular support base 41 and bearing block 43; Described screen frame (unit) 39 is bolted and is arranged on sorting screen axle 42; Described sorting screen axle power input bevel gear 44 is arranged on the below of sorting screen axle 42; Described sieve 40 is bundled on screen frame (unit) 39 by iron wire, and its effect is the sieve of being convenient to change different types; Case 18 is bolted and is arranged on case support 27; Described straw outlet 17 circumferentially is uniformly distributed installation along case 18, and 3 straw outlets 17 are 120 ° of uniform being welded on case 18 circumference at an angle;
Described First Transition axle combination 22 comprises clutch shaft bearing seat 45, First Transition axle assembly power output pulley 46, First Transition axle 47, First Transition axle assembly power input belt wheel 48, and First Transition axle combination 22 is arranged on the top of First Transition axle sectional shelf-unit 28; Described the second transition axis combination 19 comprises that the second transition axis assembly power output bevel gear 49, the second bearing block 50, the second transition axis 51, the second transition axis assembly power input belt wheel 52, the second transition axis combinations 19 are arranged on the top of the second transition axis sectional shelf-unit 23.
Described power distributing cabinet 4 is arranged on electric distribution box bracket 31; The output of described centrifugal blower axle rotation speed regulating and controlling frequency converter 5, lifting screw conveyor shaft rotation speed regulating and controlling frequency converter 6, sorting screen axle rotation speed regulating and controlling frequency converter 7 is inputted electromotor 21 and is connected by three cables 15 and centrifugal blower axle power input electromotor 8, lifting screw conveyor shaft power input electromotor 2, sorting screen axle power respectively, and the input of described frequency converter is connected with power distributing cabinet 4 respectively.
The left and right, installation site of described centrifugal blower axle power input electromotor 8 is adjustable, and the front and back, installation site that promote screw conveyor shaft power input electromotor 2 are adjustable, adjustable before and after the installation site of sorting screen axle power input electromotor 21; The installation site of described lifting screw feeder combination 13 is adjustable up and down, adjustable before and after the installation site of sorting screen combination 16; Adjustable before and after the installation site of described First Transition axle combination 22, adjustable before and after the installation site of the second transition axis combination 19.
The invention has the beneficial effects as follows:
1, Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve of the present invention adopts centrifugal flow to clean and turn round the knockdown Winnowing type cleaning principle of screening, changed the technological process of traditional combined harvester cleaning plant, blower fan with respect to the huge structure complexity adds vibrating screen separator device, structure is greatly simplified, can once complete promote emersion object, air flow cleaning gently assorted remaining, screening large assorted remaining, collect the function such as seed, its functional integration is high, the emersion object stroke is short, the technique compactness, flow process is short.There is good air flow cleaning and screening capacity, not only effectively reduce the grain loss rate, can also effectively siphon away more than light the mixing in the rape emersion object, thereby improve, clean clean rate.The problem such as low for combined harvester cleaning plant ubiquity clean rate, that percent of loss is high, provide a kind of feasible solution, and simple in structure, compact in design.
2, testing stand of the present invention can be cleaned the experimental study of clean rate and grain loss rate simultaneously to Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve, also can study different centrifugal blower rotating speeds, sorting screen rotating speed, promote the Changing Pattern of cleaning plant sorting performance under screw feeder rotating speed and compass screen surface pattern condition, thereby the factor that affects Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve sorting performance quality is optimized to test.
3, simple in structure, the compact in design of the present invention, volume is little, lightweight, and reliable operation is used easy to operately, and certainty of measurement is high, as the harvest machinery cleaning plant, has a extensive future.
What 4, the present invention also can be used for the different emersion objects such as rape, paddy rice and wheat class cleans operation and sorting performance experimental study, thereby realizes a tractor serves several purposes, increases operation rate.
The accompanying drawing explanation
Fig. 1: be testing stand general structure schematic diagram of the present invention.
Fig. 2: be this testing stand supporting structure schematic diagram.
Fig. 3: be centrifugal blower combining structure schematic diagram.
Fig. 4: be three-way pipe combining structure schematic diagram.
Fig. 5: be sorting screen combining structure schematic diagram.
Fig. 6: be First Transition axle combining structure schematic diagram.
Fig. 7: be the second transition axis combining structure schematic diagram.
In figure, number: 1. testing stand support, 2. promote screw conveyor shaft power input electromotor, 3. cable, 4. power distributing cabinet, 5. centrifugal blower axle rotation speed regulating and controlling frequency converter, 6. promote screw conveyor shaft rotation speed regulating and controlling frequency converter, 7. sorting screen axle rotation speed regulating and controlling frequency converter, 8. centrifugal blower axle power is inputted electromotor, 9. centrifugal blower combination, 10. aspirating air pipe, 11. three-way pipe combination, 12. air flow cleaning cylinder, 13. promote the screw feeder combination, 14. transfer passage, 15. case, 16. sorting screen combination, 17. straw outlet, 18. aggregate bin, 19. the second transition axis combination, 20. feed hopper, 21. sorting screen axle power input electromotor, 22. First Transition axle combination, 23. First Transition axle sectional shelf-unit, 24. sorting screen sectional shelf-unit, 25. sorting screen power input support of motor, 26. promote the screw feeder sectional shelf-unit, 27. case support, 28. the second transition axis sectional shelf-unit, 29. centrifugal blower sectional shelf-unit, 30. centrifugal blower power input support of motor, 31. electric distribution box bracket, 32. promote screw conveyor shaft power input support of motor, 33. casing, 34. radially straight leaf formula impeller, 35. cone cartridge type suction inlet, 36. air outlet, 37. air door, 38. three-way pipe, 39. screen frame (unit), 40. sieve, 41. triangular support base, 42. sieve axle, 43. bearing block, 44. sorting screen axle power input bevel gear, 45. clutch shaft bearing seat, 46. First Transition axle assembly power output pulley, 47. First Transition axle, 48. First Transition axle assembly power input belt wheel, 49. the second transition axis assembly power output bevel gear, 50. the second bearing block, 51. the second transition axis, 52. the second transition axis assembly power input belt wheel.
Specific embodiments
Below in conjunction with accompanying drawing, the present invention is made further instructions, but be not restriction the present invention.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand, and it comprises testing stand support 1, centrifugal blower combination 9, aspirating air pipe 10, three-way pipe combination 11, air flow cleaning cylinder 12, promote screw feeder combination 13, transfer passage 14, feed hopper 20, aggregate bin 15, sorting screen combination 16, straw outlet 17, case 18, First Transition axle combination 22, the second transition axis combination 19, centrifugal blower axle power input electromotor 8, promote screw conveyor shaft power input electromotor 2, sorting screen axle power input electromotor 21, centrifugal blower axle rotation speed regulating and controlling frequency converter 5, promote screw conveyor shaft rotation speed regulating and controlling frequency converter 6, sorting screen axle rotation speed regulating and controlling frequency converter 7 and power distributing cabinet 4,, wherein said testing stand support 1(is shown in Fig. 2) adopt shaped steel to be welded, it comprises First Transition axle sectional shelf-unit 23, sorting screen sectional shelf-unit 24, sorting screen assembly power input support of motor 25, promote screw feeder sectional shelf-unit 26, case support 27, the second transition axis sectional shelf-unit 28, centrifugal blower sectional shelf-unit 30, electric distribution box bracket 31, promote screw feeder assembly power input support of motor 32, described First Transition axle sectional shelf-unit 23 is arranged on the left front below of testing stand support 1, described sorting screen sectional shelf-unit 24 is arranged on the front left side of testing stand support 1, described sorting screen assembly power input support of motor 25 is arranged on the left back below of testing stand support 1, described lifting screw feeder sectional shelf-unit 26 is arranged on the left rear side of testing stand support 1, described case support 27 is arranged on the upper right side of sorting screen sectional shelf-unit 24, described the second transition axis sectional shelf-unit 28 be arranged on sorting screen assembly power input support of motor 25 directly over, described centrifugal blower sectional shelf-unit 30 is arranged on the right front top of testing stand support 1, described electric distribution box bracket 31 is arranged on the right lateral side of testing stand support 1, described lifting screw feeder assembly power input support of motor 32 is arranged on the right back below of testing stand support 1, described centrifugal blower combination 9(is shown in Fig. 3) comprise casing 33, radially straight leaf formula impeller 34, cone cartridge type suction inlet 35, air outlet 36, centrifugal blower combination 9 is arranged on the left side of centrifugal blower sectional shelf-unit 30, described lifting screw feeder combination 13 be arranged on promote screw feeder sectional shelf-unit 26 directly over, described transfer passage 14 is arranged on the lifting screw feeder by gemel connection and combines 13 tops, described air flow cleaning cylinder 12 and transfer passage 14 are by being welded and fused, described three-way pipe combination 11(is shown in Fig. 4) comprise air door 37 and three-way pipe 38, be welded on air flow cleaning cylinder 12 directly over, described air door 37 is bolted and is arranged on three-way pipe 38, described aspirating air pipe 10 is for connecting centrifugal blower combination 9 and three-way pipe combination 11, described feed hopper 20 is welded on the below that promotes screw feeder combination 13, described aggregate bin 15 is bolted and is arranged on case support 27, described sorting screen combination 16(is shown in Fig. 5) comprise screen frame (unit) 39, sieve 40, triangular support base 41, sorting screen axle 42, bearing block 43, sorting screen axle power input bevel gear 44, described bearing block 43 is bolted and is arranged on directly over sorting screen sectional shelf-unit 24, described triangular support base 41 is welded in air flow cleaning cylinder 12, described sorting screen axle 42 is arranged between triangular support base 41 and bearing block 43, described screen frame (unit) 39 is bolted and is arranged on sorting screen axle 42, described sorting screen axle power input bevel gear 44 is arranged on the below of sorting screen axle 42, described sieve 40 is fixed on directly over screen frame (unit) 39 by iron wire, described case 18 is bolted and is arranged on case support 27, described First Transition axle combination 22(is shown in Fig. 6) comprise clutch shaft bearing seat 45, lifting screw feeder assembly power input belt wheel 46, First Transition axle 47, First Transition axle assembly power input belt wheel 48, First Transition axle combination 19 is arranged on the top of First Transition axle sectional shelf-unit 28, described the second transition axis combination 19(is shown in Fig. 7) comprise that sorting screen assembly power input bevel gear 49, the second bearing block 50, the second transition axis 51, the second transition axis assembly power input belt wheel 52, the second transition axis combinations 19 are arranged on the top of the second transition axis sectional shelf-unit 23, described power distributing cabinet 4 is arranged on electric distribution box bracket 31, the output of described centrifugal blower axle rotation speed regulating and controlling frequency converter 5, lifting screw conveyor shaft rotation speed regulating and controlling frequency converter 6, sorting screen axle rotation speed regulating and controlling frequency converter 7 is inputted electromotor 21 and is connected by three cables 15 and centrifugal blower axle power input electromotor 8, lifting screw conveyor shaft power input electromotor 2, sorting screen axle power respectively, and the input of described frequency converter connects respectively at power distributing cabinet 4.
Operation principle of the present invention is:
When the knockdown Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve sorting performance test of screening is cleaned and turned round to the Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand of the present embodiment for centrifugal flow, the centrifugal blower combination is arranged on to the left side of centrifugal blower sectional shelf-unit, sorting screen combination be arranged on the sorting screen sectional shelf-unit directly over, promote the screw feeder combination and be arranged on the top that promotes the screw feeder sectional shelf-unit, check respectively the connection of aspirating air pipe and three-way pipe combination, centrifugal blower combination.Check the cable connection of centrifugal blower axle rotation speed regulating and controlling frequency converter, lifting screw conveyor shaft rotation speed regulating and controlling frequency converter, sorting screen axle rotation speed regulating and controlling frequency converter, check that centrifugal blower axle power is inputted electromotor, lifting screw conveyor shaft power input electromotor, sorting screen axle power inputs electromotor and whether fastening power distributing cabinet is connected with cable.
After errorless on inspection, merge the gauge tap of each frequency converter in power distributing cabinet.Before test, adjust the running parameter of centrifugal blower axle rotation speed regulating and controlling frequency converter, lifting screw conveyor shaft rotation speed regulating and controlling frequency converter and sorting screen axle rotation speed regulating and controlling frequency converter, make it carry out work and can be protected electromotor under correct state; Use the digital high accuracy revolution counter (purchased from commodity machinery: the Shenzhen high electronics technology of triumph Co., Ltd, model: the rotating speed of DM6234P+) demarcating corresponding lifting screw feeder under each frequency converter different frequency, centrifugal blower and sorting screen combination.
What the Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve testing stand of the present embodiment can be used for the different emersion objects such as rape, paddy rice and wheat class cleans operation and sorting performance experimental study.The emersion object material continuously, is evenly fed to the air flow cleaning cylinder through promoting screw feeder by feed hopper, and feed quantity is designed to 0.6 ~ 1.0kg/s(and is regulated by promoting the screw feeder rotating speed).During test, choose the different compass screen surface pattern sieves of experimental study, be fixed on the sorting screen screen frame (unit), adjust frequency converter to the frequency values of setting.During work, centrifugal blower is air-breathing from aspirating air pipe after starting, and produces certain negative pressure in the air flow cleaning cylinder, makes to drop into emersion object evacuation, rotation in the air flow cleaning cylinder; While rotating in airflow field more than light mixing, centrifugal force is less, relatively concentrate on air flow cleaning cylinder central part, and the airflow acting force be subject to vertically upward is greater than self gravitation, the favorable current rising, siphoned away by inspiratory airflow and, outside centrifugal fan air outlet discharge machine, realize air flow cleaning; The airflow acting force that seed, stem stalk etc. are subject to vertically upward is less than self gravitation, this part is inhaled the contrary air-flow of the emersion object of not walking and falls to sorting screen surface, obtain centrifugal force with the sieve revolution, large assorted remainingly spread along compass screen surface such as stem stalk wherein, finally by straw outlet, thrown away, seed sees through sieve aperture and falls into aggregate bin, realizes screening.After each off-test, the quality of seed in difference weighing screenings and screenings.According to the method described above, by changing the sieve of different compass screen surface patterns, adjust the rotating speed that promotes screw feeder, centrifugal blower and sorting screen combination, can measure and clean clean rate and two test indexes of weighing the sorting performance quality of grain loss rate.Adopt single factor and orthogonal experiment, can find out relation and the excellent scheme of major influence factors and sorting performance index after test of many times according to test data.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, does not break away from the spirit and scope of technical solution of the present invention and technical scheme of the present invention is modified or replaced on an equal basis, all should be encompassed in claim scope of the present invention.

Claims (10)

1. the testing stand for Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve, its feature comprises testing stand support (1), centrifugal blower combination (9), aspirating air pipe (10), three-way pipe combination (11), air flow cleaning cylinder (12), promote screw feeder combination (13), transfer passage (14), feed hopper (20), aggregate bin (15), sorting screen combination (16), straw outlet (17), case (18), First Transition axle combination (22), the second transition axis combination (19), centrifugal blower axle power input electromotor (8), promote screw conveyor shaft power input electromotor (2), sorting screen axle power input electromotor (21), centrifugal blower axle rotation speed regulating and controlling frequency converter (5), promote screw conveyor shaft rotation speed regulating and controlling frequency converter (6), sorting screen axle rotation speed regulating and controlling frequency converter (7) and power distributing cabinet (4), wherein said testing stand support (1) adopts shaped steel to be welded, and it comprises the second transition axis sectional shelf-unit (23), sorting screen sectional shelf-unit (24), sorting screen assembly power input support of motor (25), promote screw feeder sectional shelf-unit (26), case support (27) and First Transition axle sectional shelf-unit (28), centrifugal blower sectional shelf-unit (30), electric distribution box bracket (31), promote screw feeder assembly power input support of motor (32), described the second transition axis sectional shelf-unit (23) is arranged on the left front below of testing stand support (1), is vertically arranged with adjustable installing hole on it, described sorting screen sectional shelf-unit (24) is arranged on the front left side of testing stand support (1), is vertically arranged with adjustable installing hole on it, described sorting screen assembly power input support of motor (25) is arranged on the left back below of testing stand support (1), is vertically arranged with adjustable installing hole on it, described lifting screw feeder sectional shelf-unit (26) is arranged on the left rear side of testing stand support (1), is vertically arranged with adjustable installing hole on it, described case support (27) is arranged on the upper right side of sorting screen sectional shelf-unit (24), described First Transition axle sectional shelf-unit (28) be arranged on sorting screen assembly power input support of motor (25) directly over, be vertically arranged with adjustable installing hole on it, described centrifugal blower sectional shelf-unit (30) is arranged on the right front top of testing stand support (1), is horizontally arranged with adjustable installing hole on it, described electric distribution box bracket (31) is arranged on the right lateral side of testing stand support (1), described lifting screw feeder assembly power input support of motor (32) is arranged on the right back below of testing stand support (1), is vertically arranged with adjustable installing hole on it,
Described centrifugal blower combination (9) comprises casing (33), radially straight leaf formula impeller (34), cone cartridge type suction inlet (35) and air outlet (36), the axis of described casing (33), radially straight leaf formula impeller (34) and cone cartridge type suction inlet (35) all overlaps with the axis of centrifugal blower axle power input electromotor (8), and described centrifugal blower combination (9) is arranged on the left side of centrifugal blower sectional shelf-unit (30); Described lifting screw feeder combination (13) be arranged on promote screw feeder sectional shelf-unit (26) directly over; Described transfer passage (14) is arranged on and promotes screw feeder combination (13) top by gemel connection; Described air flow cleaning cylinder (12) and transfer passage (14) are by being welded and fused; Described three-way pipe combination (11) comprises air door (37) and three-way pipe (38), be welded on air flow cleaning cylinder (12) directly over; Described air door (37) is bolted and is arranged on three-way pipe (38) above, and air door (37) aperture is 0 ~ 90 °; Described aspirating air pipe (10) is for connecting centrifugal blower combination (9) and three-way pipe combination (11); Described feed hopper (20) is welded on the below that promotes screw feeder combination (13); Described aggregate bin (15) is bolted and is arranged on case support (27);
Described sorting screen combination (16) comprises screen frame (unit) (39), sieve (40), triangular support base (41), sorting screen axle (42), bearing block (43) and sorting screen axle power input bevel gear (44), and the axis of described screen frame (unit) (39), sieve (40), triangular support base (41), bearing block (43), sorting screen axle power input bevel gear (44) all overlaps with the axis of sorting screen axle (42); Described bearing block (43) is bolted and is arranged on directly over sorting screen sectional shelf-unit (24); Described triangular support base (41) frame is in air flow cleaning cylinder (12); Described sorting screen axle (42) is arranged between triangular support base (41) and bearing block (43); Described screen frame (unit) (39) is bolted and is arranged on sorting screen axle (42); Described sorting screen axle power input bevel gear (44) is arranged on the below of sorting screen axle (42); It is upper that described sieve (40) is bundled in screen frame (unit) (39) by iron wire, and its effect is the sieve of being convenient to change different types; Case (18) is bolted and is arranged on case support (27); Described straw outlet (17) circumferentially is uniformly distributed installation along case (18), and (120 °) are uniform at an angle is welded on case (18) circumference for 3 straw outlets (17);
Described First Transition axle combination (22) comprises clutch shaft bearing seat (45), First Transition axle assembly power output pulley (46), First Transition axle (47), First Transition axle assembly power input belt wheel (48), and First Transition axle combination (22) is arranged on the top of First Transition axle sectional shelf-unit (28); Described the second transition axis combination (19) comprises the second transition axis assembly power output bevel gear (49), the second bearing block (50), the second transition axis (51), the second transition axis assembly power input belt wheel (52), and the second transition axis combination (19) is arranged on the top of the second transition axis sectional shelf-unit (23).
2. the testing stand of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve as claimed in claim 1, is characterized in that, the aperture of described air door (37) is 5 ~ 85 °.
3. the testing stand of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve as claimed in claim 1, is characterized in that, described power distributing cabinet (4) is arranged on electric distribution box bracket (31); The output of described centrifugal blower axle rotation speed regulating and controlling frequency converter (5), lifting screw conveyor shaft rotation speed regulating and controlling frequency converter (6), sorting screen axle rotation speed regulating and controlling frequency converter (7) is inputted electromotor (21) and is connected by three cables (15) and centrifugal blower axle power input electromotor (8), lifting screw conveyor shaft power input electromotor (2), sorting screen axle power respectively, and the input of described frequency converter is connected with power distributing cabinet (4) respectively.
4. testing stand as claimed in claim 1, is characterized in that, the left and right, installation site of described centrifugal blower axle power input electromotor (8) is adjustable.
5. the testing stand of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve as claimed in claim 1, is characterized in that, adjustable before and after the installation site of described lifting screw conveyor shaft power input electromotor (2).
6. the testing stand of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve as claimed in claim 1, is characterized in that, adjustable before and after the installation site of described sorting screen axle power input electromotor (21).
7. the testing stand of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve as claimed in claim 1, is characterized in that, the installation site of described lifting screw feeder combination (13) is adjustable up and down.
8. the testing stand of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve as claimed in claim 1, is characterized in that, adjustable before and after the installation site of described sorting screen combination (16).
9. the testing stand of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve as claimed in claim 1, is characterized in that, adjustable before and after the installation site of described First Transition axle combination (22).
10. the testing stand of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve as claimed in claim 1, is characterized in that, adjustable before and after the installation site of described the second transition axis combination (19).
CN201210516692.6A 2012-12-05 2012-12-05 Air screen type separation device test table Expired - Fee Related CN103416169B (en)

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CN104365295A (en) * 2014-11-20 2015-02-25 湖南农业大学 Vibrating straw walker separation test stand with adjustable parameters
CN104801489A (en) * 2015-04-30 2015-07-29 石家庄聚力特机械有限公司 Air-screen specific gravity separator
CN108738676A (en) * 2018-06-19 2018-11-06 华南农业大学 A kind of sugar-cane cutting machine impurities removal performance test stand
CN113261432A (en) * 2021-06-15 2021-08-17 新疆农垦科学院 Test bed and test method of through-flow air screen type food sunflower cleaning device
CN113545218A (en) * 2021-07-12 2021-10-26 华中农业大学 Rape combined harvesting system test bed
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CN104365295A (en) * 2014-11-20 2015-02-25 湖南农业大学 Vibrating straw walker separation test stand with adjustable parameters
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CN113261432A (en) * 2021-06-15 2021-08-17 新疆农垦科学院 Test bed and test method of through-flow air screen type food sunflower cleaning device
CN113545218A (en) * 2021-07-12 2021-10-26 华中农业大学 Rape combined harvesting system test bed
CN117280940A (en) * 2023-11-02 2023-12-26 山东钧湃智能农业装备有限公司 Impurity removing device for corn harvester

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