CN113424688B - Double-chamber constant-seed-supply double-grooved-wheel seed discharging device - Google Patents
Double-chamber constant-seed-supply double-grooved-wheel seed discharging device Download PDFInfo
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- CN113424688B CN113424688B CN202110749089.1A CN202110749089A CN113424688B CN 113424688 B CN113424688 B CN 113424688B CN 202110749089 A CN202110749089 A CN 202110749089A CN 113424688 B CN113424688 B CN 113424688B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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Abstract
The invention belongs to the technical field of agricultural machinery, and relates to a double-chamber constant-quantity seed supply double-grooved wheel type seed discharging device which mainly comprises a seed box, a positioning adjusting mechanism, a seed filling mechanism, a belt seed supply mechanism, an electric control mechanism and a seed discharging mechanism, and is characterized in that the seed box is divided into a seed filling cavity and a seed discharging cavity, a belt seed supply assembly is arranged on the outer surface of an upper grooved wheel of the seed filling mechanism in a pressing manner under the cooperation of a belt shaft and a spring and rotates synchronously with the grooved wheel to form a seed protecting area, seeds in the seed filling cavity are conveyed into the seed discharging cavity at a certain speed under the action of the upper grooved wheel and the belt, the positioning adjusting mechanism can adjust the angle of the seeds initially entering the seed discharging cavity, the working state of the upper grooved wheel and the seed layer thickness in the seed discharging cavity can be controlled by the electric control mechanism and a sensor position, when the seed layer exceeds the mounting height of the sensor, the upper grooved wheel stops filling, when the seed filling is lower, the seed filling is started to ensure that the seed layer in the seed discharging cavity is stable, the seeds are discharged out of the device under the drive of the lower grooved wheel. The invention can effectively solve the problems of unstable seed supply, high seed damage rate and the like.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a double-chamber constant-seed-supply double-grooved-wheel seed discharging device.
Background
The seed metering device is a core component of the seeder, and the quality of the working quality of the seed metering device directly influences the seeding quality. At present, the most common drill seeding device has more grooved wheels, and the seeding device has the characteristics of simple structure, convenient use and adjustment, good universality, low price and the like. The outer grooved wheel seed sowing device mainly discharges seeds from the seed box through grooved wheels, and has the following defects: 1. along with the progress of the seeding process, the seed quantity in the seed box is continuously reduced, so that the seed filling capacity is sharply reduced, the seed supply quantity in the filling area is fluctuated, and the precision of constant seed supply is directly influenced. 2. The seed case is filled the district and is located directly over the seed metering wheel, leads to the seed to all directly pile up on the seed metering ware for the seed drives the layer thickly, has aggravated the friction between the seed, leads to the seed to be damaged easily, and the clear kind of the seed metering of seed metering ware and clear kind of mechanism simultaneously all can cause certain difficulty.
The baffle that "inside clear kind of type hole wheel type rice seed metering ware" that patent number is ZL200610035507.6 is close vertical installation in filling the room, divide into two cavities of main and vice with filling the room, and when the seed in the vice cavity was enough, the seed under the seed wheel brush can't reach vice cavity, caused the jam. Meanwhile, the extrusion can also influence the seed cleaning effect on the seed cleaning wheel.
In order to solve the problems of unstable supply amount, high seed damaging rate and the like of the existing outer sheave seed sowing device, a seed sowing device which is reasonable in structure, stable in constant seed supply and low in seed damaging rate needs to be designed.
Disclosure of Invention
The invention aims to solve the problems of high seed damage rate and unstable seed supply amount of an outer grooved wheel seed sowing device in the background technology, achieve the effect of optimizing seed sowing, and provide a double-chamber constant-seed-supply double grooved wheel seed sowing device which is characterized in that the seed sowing device mainly comprises a seed box, a belt adjusting box, a positioning adjusting mechanism, a seed charging mechanism, an electric control mechanism, a belt seed supply mechanism and a seed sowing mechanism;
the seed box 1 is composed of a seed box front baffle 1001, a seed box rear baffle 1002, a seed box left baffle 1003, a seed box right baffle 1004, a seed box fixing plate 1005 and a partition 1006. The front baffle 1001, the back baffle 1002, the left baffle 1003 and the right baffle 1004 constitute a hollow casing. The baffle 1006 is located in the hollow shell, and the surface of the seed filling baffle 1006 intersects with the surfaces of the front baffle 1001, the back baffle 1002 and the right baffle 1004 of the seed box, so as to divide the seed box into two chambers. The box fixing plate 1005 is located at the bottom of the hollow housing, and 4 bolt holes 1007 are formed in the edge of the box fixing plate. The connecting plate 1008 is located at the edge of a contact plate surface of the seed box front baffle 1001, the seed box rear baffle 1002 and the seed box left baffle 1003, and a bolt hole 1009 is formed in the center of the connecting plate. A sensor mounting hole 1010 and 4 sensor fixing plate mounting holes 1011 are formed in the lower center of the box front baffle 1001. The sensor mounting hole 1010 is positioned at the center of the 4 sensor fixing plate mounting holes 1011;
The belt adjusting box 2 is composed of a left box body 2001 and a right box body 2002, and the left box body 2001 and the right box body 2002 are symmetrical in structure. The left cartridge 2001 has a raised locating peg 2003 on the contact end face and the right cartridge 2002 has a locating hole 2004 on the corresponding contact end face. The positioning plug 2003 and the positioning hole 2004 are in interference fit, and the left box body 2001 and the right box body 2002 are connected together. The belt adjusting box 2 is provided with a bearing slide 2005 for pressing the belt shaft 5, a bearing hole 2006 for pressing the belt shaft 6 downwards, bearing holes 2007 for tensioning shafts 7 at 3 different positions, a bearing slide 2008 for positioning the shaft 8, and a threaded hole 2009 in the thin wall of the belt adjusting box parallel to the bearing slide 2008. The edge of the contact surface of the belt adjusting box 2 is provided with a connecting plate 2010 the same as that of the seed box 1, and the center of the connecting plate 2011 is provided with a bolt hole 2011 the same as that of the connecting plate 1008 in size. The bolt 23 fixedly connects the belt adjusting box 2 with the seed box 1 through the connecting plate 1008 and the connecting plate 2010;
the positioning adjusting mechanism consists of an adjusting hand wheel 3, a positioning slide block 4, a bearing 17 and a jackscrew 25. The bearing 17 is nested in the central hole 4001 of the positioning slide block 4. The adjusting hand wheel 3 is fixed in the threaded hole 4002 of the positioning sliding block 4 through a threaded hole 2009 with the adjusting box 2. The upper and lower sliding grooves 4003 of the positioning sliding block 4 are clamped in the bearing slideway 2008 and can freely slide in the bearing slideway 2008. The side wall of the sliding groove 4003 of the positioning sliding block 4 is provided with a penetrating jackscrew hole 4004. The jackscrew 25 is arranged in the jackscrew hole 4004, and the bottom of the jackscrew 25 is superposed with the surfaces of the front baffle 1001 and the rear baffle 1002 of the seed box. The horizontal position of the slide block 4 on the bearing slideway 2008 can be changed and stabilized by rotating the adjusting hand wheel 3;
The seed supply mechanism consists of an upper grooved wheel 9, a grooved wheel retainer ring 10, a grooved wheel shaft 11 and a coupling 12. The upper grooved wheel 9 is arranged in a hollow cylinder formed by connecting the seed box 1 and the belt adjusting box 2, the upper grooved wheel 9 is concentric with the hollow cylinder, and two side surfaces of the upper grooved wheel 9 are parallel to a front baffle surface 1001 of the seed box and a rear baffle surface 1002 of the seed box. The bottom surface of the sheave retaining ring 10 is superposed with the front baffle surface 1001 of the seed box and the rear baffle surface 1002 of the seed box, and is concentric with the upper sheave 9 and the sheaves are meshed one by one, so that the sheave retaining ring and the upper sheave 9 synchronously rotate. A sheave shaft 11 is fixed in a sheave hole 9001 of the upper sheave 9 and is connected with a motor 13 through a coupler 12;
the electric control mechanism is composed of a motor 13, a light sensor 14, a light sensor fixing plate 15 and a processor 16. The optical line sensor 14 is positioned in the mounting hole 1502 of the optical line sensor fixing plate 15. The optical sensor fixing plate 15 is provided with bolt holes 1501 at the same positions as those of the seed box front baffle 1001, and the optical sensor fixing plate 15 is attached to the seed box front baffle 1001 by bolts 23. When the seed thickness in the seed sowing cavity is lower than the installation height of the optical sensor 14, the optical sensor 14 transfers the collected signals to the processor 16, the processor 16 starts the motor 13 to work, and when the seed thickness is higher than the installation height of the optical sensor 14, the processor 16 stops the motor 13 from rotating;
The belt seed supply mechanism is composed of an upper pressing belt shaft 5, a lower pressing belt shaft 6, a tensioning shaft 7, a positioning shaft 8, a bearing 17, a compression spring 18 and a belt 19. The tape seed supply mechanism is installed in the tape adjusting box 2. The belt 19 is pressed down on the upper sheave 9 under the combined action of the upper pressing belt shaft 5, the lower pressing belt shaft 6, the tensioning shaft 7 and the positioning shaft 8, forms a seed protection area with the sheave 9002, and is driven by friction of the upper sheave 9 to realize synchronous rotation. The upper pressing belt shaft 5 and the tensioning shaft 7 are processed into two small sections of concave circular rings at the same positions, and circular hooks at two ends of the compression spring 18 are sleeved in the concave circular rings. The hold-down strap shaft 5 is integral with the bearing 17 and is slidable within the bearing runner 2005. The positioning shaft 8 is arranged in a bearing of the positioning adjusting mechanism, and the horizontal position of the positioning shaft can be changed by rotating the adjusting hand wheel 3;
the seed sowing mechanism consists of a seed sowing cup 20, a lower grooved pulley 21, a grooved pulley retainer ring 10, a grooved pulley shaft 11 and a seed cleaning brush 22. The shape of the top of the seed cup 20 is the same as that of the bottom of the seed box fixing plate 1005, and the bolt 23 fixes the seed box 1 and the seed cup 20 through the bolt hole 1007 and the bolt hole 201. The lower grooved wheel 21 is concentric with the grooved wheel mounting hole 202, and two side surfaces are parallel to the front and rear cup surfaces of the seed cup 20. The sheave retaining ring 10 is concentric with the lower sheave 21, the bottom surface of the sheave retaining ring 10 is superposed with the front and back cup surfaces of the seeding cup 20 and meshed with the sheaves of the lower sheave 21 one by one, and synchronous rotation with the lower sheave 21 is realized. The sheave shaft 11 is fixed in the sheave hole 2101 of the lower sheave 21 and is connected with the ground wheel through a chain. The seed cleaning brush 22 is positioned in the seed discharging cup 20, and the brush end part of the seed cleaning brush intersects with the edge of the lower grooved wheel 21. Is fixed on the cup wall of the seed cup 20 through a bolt 23 and a nut 24;
The working principle of the invention is that the seed filling partition 1006 divides the seed box 1 into two chambers: a seed filling working cavity and a seed discharging working cavity. The seed filling partition 1006 forms an included angle with the horizontal ground, and the included angle is larger than the maximum repose angle of the seeds. When the seeds are located in the seed filling working area, the wheel grooves 9002 are filled with the seeds under the action of gravity and friction force, and the upper grooved wheels 9 convey the seeds in the wheel grooves 9002 to the belt seed supply assembly under the driving of the motor 13. The belt 19 in the belt seed supply assembly is tightly pressed on the upper grooved wheel 9 under the combined action of the upper pressing belt shaft 5, the lower pressing belt shaft 6, the tensioning shaft 7 and the positioning shaft 8, forms a seed protection area with the grooved wheel 9002 and synchronously rotates along with the upper grooved wheel 9. Seeds in the seed protection area are filled into the seeding working cavity at a certain angle and speed under the combined action of the upper grooved wheel 9 and the belt 19. In order to reduce the accumulation of seeds in the seed metering working cavity and achieve the active seed filling effect, the optical sensor 14 is installed at the maximum height of the seed metering driving layer of the seed metering device, when the seed layer thickness of the seed metering working cavity exceeds the installation position of the optical sensor 14, the processor 16 controls the upper grooved wheel 9 to stop seed metering, and when the seed layer thickness is lower than the installation position of the optical sensor, the upper grooved wheel 9 starts to work, so that the seeds in the seed metering working cavity are always in a constant active state. The seeds entering the seeding working cavity fall into the wheel groove 2102 under the action of gravity, the grooved wheel shaft 11 is connected with the land wheel through a chain to drive the lower grooved wheel 21 to rotate, the seed cleaning brush 22 cleans redundant seeds, and the seeding mechanism discharges the seeds out of the body to complete the operation.
According to the invention, the seed filling partition plate 1006 arranged in the seed box 1 divides the seed box 1 into a seed filling working chamber and a seed discharging working chamber, so that seeds are prevented from being directly accumulated on a seed discharging device, and the seeds are prevented from driving a layer to be too thick and have poor fluidity, and the friction among the seeds is aggravated; the belt adjusting box 2 is matched with the seed box 1 for use, so that the disassembly is convenient; the seed supply assembly can synchronously rotate with the upper grooved wheel 9, so that the seed supply assembly is prevented from rubbing with the seeds in the grooved wheel 9002, and the possibility of seed damage is reduced; the seed supply assembly is used for elastically protecting seeds in the wheel groove 9002, the bearing 17 can freely slide in the bearing slide 2005 through the bearing slide 2005 arranged in the adjusting box 2, the compression spring 18 is elastically matched with the upper pressing belt shaft 5, the seed damage condition of the seed card between the edge of the upper grooved wheel 9 and the fixed seed protecting plate when the seeds initially enter the seed protecting area is reduced, and the pulse phenomenon generated by the seed supply device 4 is reduced; the positioning adjusting mechanism changes the initial angle of the seeds when the seeds enter the seed sowing device 6 by rotating the adjusting hand wheel 11, and the seed supply assembly provides the initial speed of the seeds when the seeds enter the seed sowing device 6, so that the active population is reached, and the seed sowing speed is improved; the light sensor 14 is arranged at the maximum driving layer of the lower grooved wheel 21 of the seed sowing device, the processor 16 controls the motor 13 to start and stop by adopting time delay sensing, the seeds in the seed filling working cavity of the seed box 1 are stably and constantly conveyed to the seeds in the seed sowing working cavity, the height of the seed layer in the seed sowing working cavity is basically kept unchanged, the load influence of the seeds on the lower grooved wheel 21 is reduced, and meanwhile, the seed cleaning efficiency of the brush 22 can also be improved.
The invention has the beneficial effects that: 1. the invention divides the traditional seed box into areas and avoids the seeds from being totally accumulated right above the seed sowing device. 2. The upper grooved wheel provides stable seed flow, and the lower grooved wheel carries out seed metering operation, so that the seed metering mode of the traditional seed metering device is thoroughly changed. 3. The upper grooved wheel provides power through the motor, the working state of the upper grooved wheel is determined by the height of the seed layer in the seed sowing working cavity, and the seed filling efficiency is greatly improved. 4. The seed supply assembly can synchronously rotate with the upper grooved wheel, so that rubbing with seeds in the grooved wheel is avoided, and the seed damage rate is reduced. 5. The belt seed supply assembly and the positioning and adjusting device can provide and change the initial speed and angle when seeds enter the seed metering device, realize that the seeds are actively charged into the wheel groove, and improve the working efficiency of the seed metering device. In conclusion, the seed sowing device is simple in structure and reasonable in design, and can effectively solve the problems of unstable seed feeding amount, high seed damage rate and low working efficiency of the traditional seed sowing device.
Drawings
FIG. 1A is a view showing the internal structure of a double-chamber constant-seed-supply double-grooved wheel seeding device, wherein a motor, a coupling and a processor are not shown in the drawing;
FIG. 1B is a side view of a seed metering device;
FIG. 2A is a schematic view of the internal structure of a seed box;
FIG. 2B is a side view of the seed box;
FIG. 3A is a front view of a tape cassette;
FIG. 3B is a schematic view of the assembly of the case with the regulating box;
FIG. 4 is a schematic view of the positioning adjustment mechanism assembly;
FIG. 5 is a front view of the adjustment handwheel;
FIG. 6 is a front view of the positioning slide;
figure 7 is an isometric view of an upper sheave and a lower sheave;
FIG. 8A is a front view of a sheave retainer ring;
FIG. 8B is a side view of a sheave retainer ring;
FIG. 9 is a schematic view of a belt seed supply assembly;
FIG. 10 is a front view of the upper belt shaft and tensioning shaft;
FIG. 11A is a front view of the seed metering device;
FIG. 11B is a top view of the seed metering device;
FIG. 12 is a schematic view of the internal structure of the seed cup.
In the figure, 1-box, 1001-box front baffle, 1002-box rear baffle, 1003-box left baffle, 1004-box right baffle, 1005-box fixing plate, 1006-partition plate, 1007-bolt hole, 1008-connecting plate, 1009-connecting plate mounting hole, 1010-sensor mounting hole, 1011-sensor fixing plate mounting hole, 2-belt adjusting box, 2001-left box, 2002-right box, 2003-positioning plug, 2004-positioning hole, 2005-bearing slide, 2006-bearing hole, 2007-bearing hole, 2008-bearing slide, 2009-threaded hole, 2010-connecting plate, 2011-bolt hole, 3-adjusting hand wheel, 4-positioning slider, 5-upper pressing belt shaft, 6-lower pressing belt shaft, 7-tension shaft, 8-positioning shaft, 9-upper sheave, 10-sheave retainer, 11-sheave shaft, 12-coupling, 13-motor, 14-sheave sensor, 15-sheave fixing frame, 16-processor, 17-bearing, 18-compression spring, 19-belt, 20-seed-metering cup, 21-lower grooved wheel, 22-seed-cleaning brush, 23-bolt, 24-nut and 25-jackscrew.
Detailed Description
The present invention will be described in further detail with reference to the following examples and the accompanying drawings. As shown in fig. 1A, which is a schematic view of the internal structure of a dual-chamber electric control type constant-quantity seed supply dual-grooved wheel seeding device, fig. 1B is a side view of the dual-chamber electric control type constant-quantity seed supply dual-grooved wheel seeding device, and the dual-chamber electric control type constant-quantity seed supply dual-grooved wheel seeding device mainly comprises a seed box shown in fig. 2, a seed supply assembly shown in fig. 9, a seeding device shown in fig. 11 and an electric control device.
As shown in fig. 2A and 2B, the seed tank 1 includes a front tank baffle 1001, a rear tank baffle 1002, a left tank baffle 1003, a right tank baffle 1004, a tank fixing plate 1005, and a partition 1006. The front baffle 1001, the back baffle 1002, the left baffle 1003 and the right baffle 1004 constitute a hollow casing. The baffle 1006 is located in the hollow shell, and the surface of the seed filling baffle 1006 intersects with the surfaces of the front baffle 1001, the back baffle 1002 and the right baffle 1004 of the seed box, so as to divide the seed box into two chambers. The box fixing plate 1005 is located at the bottom of the hollow housing, and 4 bolt holes 1007 are formed in the edge of the box fixing plate. The connecting plate 1008 is located at the edge of a contact plate surface of the seed box front baffle 1001, the seed box rear baffle 1002 and the seed box left baffle 1003, and a bolt hole 1009 is formed in the center of the connecting plate. A sensor mounting hole 1010 and 4 sensor fixing plate mounting holes 1011 are formed in the lower center of the box front baffle 1001. The sensor mounting hole 1010 is located at the center of the 4 sensor fixing plate mounting holes 1011.
As shown in fig. 3A and 3B, the tape adjusting box 2 is composed of a left box body 2001 and a right box body 2002, and the left box body 2001 and the right box body 2002 are symmetrical in structure. The left cartridge 2001 has a raised locating peg 2003 on the contact end face and the right cartridge 2002 has a locating hole 2004 on the corresponding contact end face. The positioning plug 2003 and the positioning hole 2004 are in interference fit, and the left box body 2001 and the right box body 2002 are connected together. The belt adjusting box 2 is provided with a bearing slide 2005 for compressing the belt shaft 5, a bearing hole 2006 for compressing the belt shaft 6, bearing holes 2007 for tensioning shafts 7 at 3 different positions, a bearing slide 2008 for positioning the shaft 8, and a threaded hole 2009 in the thin wall of the belt adjusting box parallel to the bearing slide 2008. The edge of the contact surface of the belt adjusting box 2 is provided with a connecting plate 2010 the same as that of the seed box 1, and the center of the connecting plate 2011 is provided with a bolt hole 2011 the same as that of the connecting plate 1008 in size. The bolt 23 fixedly connects the belt adjusting box 2 with the seed box 1 through the connecting plate 1008 and the connecting plate 2010.
The positioning and adjusting mechanism shown in fig. 4, 5 and 6 is composed of an adjusting hand wheel 3, a positioning slide block 4, a bearing 17 and a jackscrew 25. The bearing 17 is nested in the central hole 4001 of the positioning slide block 4. The adjusting hand wheel 3 is fixed in the threaded hole 4002 of the positioning slide block 4 through a spiral thread hole 2009 with the adjusting box 2. The upper and lower chutes 4003 of the positioning slide block 4 are clamped in the bearing slide 2008 and can freely slide in the bearing slide 2008. The side wall of the sliding groove 4003 of the positioning sliding block 4 is provided with a penetrating jackscrew hole 4004. The jackscrew 25 is installed in the jackscrew hole 4004, and the bottom of the jackscrew 25 coincides with the surfaces of the front baffle 1001 and the rear baffle 1002 of the seed box. The horizontal position of the positioning slide block 4 on the bearing slideway 2008 can be changed and stabilized by rotating the adjusting handwheel 3.
As shown in fig. 7, 8A and 8B, the seed supply mechanism is composed of an upper sheave 9, a sheave retainer ring 10, a sheave shaft 11 and a coupling 12. The upper grooved wheel 9 is arranged in a hollow cylinder formed by connecting the seed box 1 and the belt adjusting box 2, the upper grooved wheel 9 is concentric with the hollow cylinder, and two side surfaces of the upper grooved wheel 9 are parallel to a front baffle surface 1001 of the seed box and a rear baffle surface 1002 of the seed box. The bottom surface of the sheave retaining ring 10 is superposed with the front baffle surface 1001 of the seed box and the rear baffle surface 1002 of the seed box, and is concentric with the upper sheave 9 and the sheaves are engaged one by one, so that the synchronous rotation with the upper sheave 9 is realized.
The tape seed supply mechanism shown in fig. 9 and 10 comprises an upper pressing tape shaft 5, a lower pressing tape shaft 6, a tensioning shaft 7, a positioning shaft 8, a bearing 17, a compression spring 18 and a tape 19. The tape seed supply mechanism is installed in the tape adjusting box 2. The belt 19 is pressed and covered on the upper grooved wheel 9 under the combined action of the upper pressing belt shaft 5, the lower pressing belt shaft 6, the tensioning shaft 7 and the positioning shaft 8, forms a seed protection area with the grooved wheel 9002, and is driven by the friction of the upper grooved wheel 9 to realize synchronous rotation. The upper pressing belt shaft 5 and the tensioning shaft 7 are processed into two small sections of concave circular rings at the same positions, and circular hooks at two ends of the compression spring 18 are sleeved in the concave circular rings. The hold-down strap shaft 5 is integral with the bearing 17 and is slidable within the bearing runner 2005. The positioning shaft 8 is arranged in a bearing of the positioning adjusting mechanism, and the horizontal position of the positioning shaft can be changed by rotating the adjusting hand wheel 3.
As shown in fig. 11, 11 and 12, the seed discharging mechanism is composed of a seed discharging cup 20, a lower grooved wheel 21, a grooved wheel retainer ring 10, a grooved wheel shaft 11 and a seed cleaning brush 22. The shape of the top of the seed cup 20 is the same as that of the bottom of the seed box fixing plate 1005, and the bolt 23 fixes the seed box 1 and the seed cup 20 through the bolt hole 1007 and the bolt hole 201. The lower grooved wheel 21 is concentric with the grooved wheel mounting hole 202, and two side surfaces are parallel to the front and rear cup surfaces of the seed cup 20. The sheave retaining ring 10 is concentric with the lower sheave 21, the bottom surface of the sheave retaining ring 10 is superposed with the front and back cup surfaces of the seeding cup 20 and meshed with the sheaves of the lower sheave 21 one by one, and synchronous rotation with the lower sheave 21 is realized. The sheave shaft 11 is fixed in the sheave hole 2101 of the lower sheave 21 and is connected with the ground wheel through a chain. The seed cleaning brush 22 is positioned in the seed discharging cup 20, and the brush end part of the seed cleaning brush is intersected with the edge of the lower grooved wheel 21. Is fixed on the cup wall of the seed cup 20 through a bolt 23 and a nut 24.
The invention is applied to traditional agricultural machines, where before operation, the box 1 is divided into two chambers by a partition 1006: a seed charging cavity and a seed discharging cavity. The seeds are poured into the seed box 1, the seeds fall onto the seed filling partition plate 1006 to fill the whole seed filling area, the wheel grooves 9002 are filled with the seeds under the action of gravity and extrusion force, and the upper grooved wheel 9 conveys the seeds in the wheel grooves 9002 to the seed feeding assembly under the drive of the motor 13. The belt 19 in the belt seed supply assembly is tightly pressed on the upper grooved wheel 9 under the combined action of the upper pressing belt shaft 5, the lower pressing belt shaft 6, the tensioning shaft 7 and the positioning shaft 8, forms a seed protection area with the grooved wheel 9002 and synchronously rotates along with the upper grooved wheel 9. Seeds in the seed protection area are filled into the seeding working cavity at a certain angle and speed under the combined action of the upper grooved wheel 9 and the belt 19. In order to reduce the accumulation of seeds in the seeding working cavity and achieve the effect of active seed filling, the optical sensor 14 is arranged at the maximum height of the seeding driving layer of the seeding device, when the seed layer thickness of the seeding working cavity exceeds the installation position of the optical sensor 14, the processor 16 controls the upper grooved wheel 9 to stop seeding, and when the seed layer thickness is lower than the installation position of the optical sensor, the upper grooved wheel 9 starts to work, so that the seeds in the seeding working cavity are always in a constant active state. The seeds entering the seeding working cavity fall into the wheel grooves 2102 under the action of gravity, the grooved wheel shaft 11 is connected with the land wheel through a chain to drive the lower grooved wheel 21 to rotate, the seed cleaning brush 22 cleans redundant seeds, and the seeding mechanism discharges the seeds out of the body, so that the operation is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. A double-chamber constant seed supply double-grooved wheel seed sowing device is characterized in that the seed sowing device mainly comprises a seed box (1), a belt adjusting box (2), a positioning adjusting mechanism, a seed filling mechanism, a belt seed supply mechanism, an electric control mechanism and a seed sowing mechanism, wherein the seed box (1) is divided into a seed filling cavity and a seed sowing cavity, the seed filling cavity is positioned above a partition plate (1006) and is a cavity enclosed by a shell of the seed box (1), the partition plate (1006), the belt adjusting box (2) and an upper grooved wheel (9), the seed sowing cavity is positioned below the partition plate (1006) and is a cavity enclosed by the shell of the seed box (1), the partition plate (1006), the belt adjusting box (2) and a seed sowing cup (20), the belt adjusting box (2), the seed box (1) and the belt adjusting box (2) are fixedly connected together, the upper grooved wheel (9) and a grooved wheel (10) of the seed supply mechanism are arranged in a hollow cylinder formed by fixedly connecting the seed box (1) and the belt adjusting box (2), the belt seed supply assembly consists of an upper pressing belt shaft (5), a lower pressing belt shaft (6), a tensioning shaft (7), a positioning shaft (8), a bearing (17), a compression spring (18) and a belt (19), and is arranged in the belt adjusting box (2); the belt (19) is pressed on the outer surface of an upper grooved wheel (9) of the seed filling mechanism under the matching of an upper pressing belt shaft (5), a lower pressing belt shaft (6), a tensioning shaft (7), a positioning shaft (8) and a spring (18) and synchronously rotates with the upper grooved wheel (9) to form a seed protecting area, a positioning adjusting mechanism is installed in a belt adjusting box (2) through a bearing slide way (2008) and a threaded hole (2009), the positioning adjusting mechanism can adjust the angle of the seed initially entering a seed discharging cavity, the working state of the upper grooved wheel (9) and the thickness of the seed layer in the seed discharging cavity are controlled by an electric control mechanism and a sensor (14) position, when the seed layer of the seed discharging cavity exceeds the installation height of the sensor (14), the upper grooved wheel (9) stops filling, and when the seed layer is lower than the installation height of the sensor (14), the seed filling is started; seeds in the seed filling cavity are conveyed into the seed discharging cavity at a certain speed and at a certain angle under the protection of the upper grooved wheel (9) and the belt (19); the seed sowing mechanism is positioned at the bottom of the seed box (1) and the belt adjusting box (2), and seeds falling into the seed sowing cavity are driven by the lower grooved wheel (21) to be discharged out of the device;
The structure of the seed box (1) is a hollow shell formed by connecting a seed box front baffle (1001), a seed box rear baffle (1002), a seed box left baffle (1003) and a seed box right baffle (1004); baffle (1006) is located the cavity casing, divides into two work chambers with the seed case: the seed filling cavity and the seed discharging cavity are formed in the mode that a seed box fixing plate (1005) is located at the bottom of a hollow shell, 4 bolt holes (1007) are formed in the edge of the hollow shell, a connecting plate (1008) is located at the edge of a contact plate surface of a seed box front baffle (1001), a seed box rear baffle (1002) and a seed box left baffle (1003), bolt holes (1009) are formed in the center of the connecting plate, a sensor mounting hole (1010) and 4 sensor fixing plate mounting holes (1011) are formed in the center of the seed box front baffle (1001) close to the lower position, and the sensor mounting hole (1010) is located in the center of the 4 sensor fixing plate mounting holes (1011);
the belt adjusting box (2) is provided with a bearing slide way (2005) which compresses a belt shaft (5) at the upper part, a bearing hole (2006) which compresses the belt shaft (6) at the lower part, 3 tensioning shafts (7) at different positions and bearing holes (2007), a bearing slide way (2008) which positions a shaft (8), a threaded hole (2009) is formed in the thin wall of the belt adjusting box which is parallel to the bearing slide way (2008), a connecting plate (2010) which is the same as the seed box (1) is arranged at the edge of the contact surface of the belt adjusting box (2), a bolt hole (2011) which is the same as the connecting plate (1008) in size is arranged at the central position of the connecting plate (2010), the structure of the belt adjusting box (2) is formed by a left box body (2001) and a right box body (2002), the left box body (2001) is symmetrical to the structure of the right box body (2001), a raised positioning plug (2003) is arranged on the contact end surface of the left box body (2001), and a positioning hole (2004) is arranged on the corresponding contact end surface of the right box body (2002), the positioning plug (2003) is in interference fit with the positioning hole (2004) to connect the left box body (2001) and the right box body (2002) together;
The positioning adjusting mechanism is composed of an adjusting hand wheel (3), a positioning sliding block (4), a bearing (17) and a jackscrew (25), the bearing (17) is embedded in a center hole (4001) of the positioning sliding block (4), the adjusting hand wheel (3) is fixed in a threaded hole (4002) of the positioning sliding block (4) through a spiral thread hole (2009) with an adjusting box (2), an upper sliding groove (4003) and a lower sliding groove (4003) of the positioning sliding block (4) are clamped in a bearing sliding way (2008) and can freely slide in the bearing sliding way (2008), a through jackscrew hole (4004) is formed in the side wall of the sliding groove (4003) of the positioning sliding block (4), the jackscrew (25) is installed in the jackscrew hole (4004), and the horizontal position of the positioning sliding block (4) in the bearing sliding way (2008) can be changed and stabilized through rotating the adjusting hand wheel (3), so that the inclination angle of the belt (19) is controlled;
the seed supply mechanism is composed of an upper grooved wheel (9), a grooved wheel retainer ring (10), a grooved wheel shaft (11) and a coupler (12), wherein the upper grooved wheel (9) is installed in a hollow cylinder formed by connecting the seed box (1) and the belt adjusting box (2), the bottom surface of the grooved wheel retainer ring (10) is superposed with a front seed box baffle surface (1001) and a rear seed box baffle surface (1002) and is meshed with the grooves of the upper grooved wheel (9) one by one to realize synchronous rotation with the upper grooved wheel (9), and the grooved wheel shaft (11) is fixed in a grooved wheel hole (9001) of the upper grooved wheel (9) and is connected with a motor (13) through the coupler (12);
The electric control mechanism is structurally characterized in that a light sensor (14) is arranged on a seed box front baffle (1001) through a light sensor fixing plate (15), the position of the light sensor is adjustable, the light sensor (14) transfers collected signals to a processor (16) according to the thickness of seed layers in a seed sowing cavity, and the processor (16) controls the work of a motor (13) to drive an upper grooved pulley (9) to work so as to complete seed filling operation;
the seed supply mechanism structure with the seed supplying function is characterized in that a belt (19) is pressed on an upper grooved wheel (9) under the combined action of an upper pressing belt shaft (5), a lower pressing belt shaft (6), a tensioning shaft (7) and a positioning shaft (8) to form a seed protecting area with the grooved wheel (9002), synchronous rotation is realized through the friction drive of the upper grooved wheel (9), the upper pressing belt shaft (5) and the tensioning shaft (7) are processed into two small concave circular rings at the same position, circular hooks at two ends of a compression spring (18) are sleeved in the concave circular rings, the upper pressing belt shaft (5) and a bearing (17) are integrated and can slide in a bearing slideway (2005), the positioning shaft (8) is arranged in a positioning adjusting mechanism, the horizontal position of the positioning shaft can be changed through rotating and adjusting a hand wheel (3), the compression spring (18) provides pressure for the upper pressing belt shaft (5) to press the belt (19) on the upper surface of the upper grooved wheel (9), the upper pressing belt shaft (5) and the bearing (17) are integrated and can slide in the bearing slide way (2005), and when seeds enter the seed protection area initially and are clamped between the edge of the grooved wheel and the belt, the spring (18) subjected to force drives the upper pressing belt shaft (5) to retract for a certain distance in the bearing slide way (2005).
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| CN202110749089.1A CN113424688B (en) | 2021-07-02 | 2021-07-02 | Double-chamber constant-seed-supply double-grooved-wheel seed discharging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN85102619B (en) * | 1985-04-01 | 1988-03-30 | 王裕德 | Multi-purpose seed planter |
| CN101278619B (en) * | 2008-05-06 | 2011-09-14 | 华南农业大学 | Cereal seed sowing device with detachable elastic rotating seed protection device |
| CN201504409U (en) * | 2009-08-25 | 2010-06-16 | 河北农哈哈机械集团有限公司 | Seed metering device of seeding machine |
| KR101273011B1 (en) * | 2012-10-29 | 2013-06-10 | 최형섭 | A direct spot-seeder |
| CN107006185B (en) * | 2017-03-24 | 2019-09-10 | 华南农业大学 | A kind of feed mechanism for seed of the amount of broadcasting step-less adjustment |
| CN108848805B (en) * | 2018-08-20 | 2024-05-10 | 山东农业大学 | Pneumatic support spoon roller combined potato seed metering device |
| CN111010944B (en) * | 2020-01-17 | 2021-09-14 | 湖南农业大学 | Volume-adjustable seeding device based on nondestructive operation |
| CN111972090B (en) * | 2020-08-27 | 2022-04-29 | 扬州大学 | Air-suction type adjustable-pitch spiral bevel-tooth seed sowing device |
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