CN107593049B - Seeding machine capable of automatically controlling seeding quantity - Google Patents
Seeding machine capable of automatically controlling seeding quantity Download PDFInfo
- Publication number
- CN107593049B CN107593049B CN201710827660.0A CN201710827660A CN107593049B CN 107593049 B CN107593049 B CN 107593049B CN 201710827660 A CN201710827660 A CN 201710827660A CN 107593049 B CN107593049 B CN 107593049B
- Authority
- CN
- China
- Prior art keywords
- wheel
- seeding
- seed
- rotating speed
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Sowing (AREA)
Abstract
The invention discloses a sowing-amount automatic-control sowing machine, which comprises a rack, a three-point suspension device, a seed sowing system, a press wheel, a depth wheel and a sowing-amount control system, wherein the rack comprises a left side plate, a right side plate, a first supporting beam, a second supporting beam and a third supporting beam, wherein the first supporting beam, the second supporting beam and the third supporting beam are fixedly connected between the two side plates; the lower suspension point and the upper suspension point of the three-point suspension device are respectively fixed on the first support beam and the second support beam; the seed discharging system comprises a plurality of seed discharging units arranged side by side, and the plurality of seed discharging units are arranged on the second supporting beam side by side; the invention collects the rotating speed signals of the two depth wheels, and adjusts and controls the rotating speed adjustment and the length of the outer grooved wheel seed sowing device by using the highest rotating speed as a control signal through the sowing quantity control system, thereby expanding the sowing quantity adjustment range, improving the control precision and reducing the influence of the land wheel slippage on the sowing uniformity.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a seeding machine capable of automatically controlling seeding quantity.
Background
Traditional land wheel transmission seed metering mode, guarantee the homogeneity of volume of broadcasting through the seed metering ware with the definite drive ratio of land wheel, realize the regulation of volume of sowing through changing drive ratio and sheave length, and the drive ratio realizes adjusting through changing the sprocket, it is loaded down with trivial details to adjust the installation, and the quantity of sprocket can not be too many, the control range is limited, can't realize stepless regulation, and this method is big at soil moisture, under the adverse conditions of earth's surface unevenness, the land wheel easily produces and slides, will cause the volume of broadcasting inequality, influence the seeding quality.
Aiming at the problems, a Chinese patent 'synchronous electronic fertilizer apparatus' with the patent number of CN201220122546.0 and a Chinese patent 'seeder with electronic control of seed sowing quantity' with the patent number of CN200920098970.4 both adopt a sensor to acquire a unit advancing speed signal and a land wheel rotating speed signal, and a control element is used for controlling the rotating speed of a direct current motor, so that the sowing quantity is changed along with the change of the machine advancing speed; wang Rengui and others propose an automatic seeding rate regulating system (discussing the electric control regulation of an outer sheave seeding device, 2009), which controls the rotation speed and the rotation direction of a seeding motor by detecting the seeding rate in unit time, wherein the output end of the motor is connected with a worm wheel and meshed with a rack, the rack is fixedly connected with an outer sheave seeding device into a whole, the length of a sheave is changed by the meshing of the worm wheel and the rack, and the discharge capacity is regulated.
The technical scheme respectively adopts the method for controlling the rotating speed and the length of the seed sowing device to realize the control of the seeding rate, and the single seeding rate adjusting mode has limited seeding rate adjusting range; above-mentioned technical scheme adopts single land wheel rotational speed signal as control signal, when land wheel takes place to slide, will cause the volume of broadcasting uneven.
Disclosure of Invention
The invention aims to provide a seeding machine capable of automatically controlling seeding rate, which overcomes the influence of the slippage of a land wheel of a traditional land wheel seeding system on the seeding rate uniformity of the seeding machine, improves the seeding quality, and simultaneously adopts an external grooved wheel seeding machine rotating speed regulation and length synchronous regulation mode to regulate the seeding rate, expand the seeding rate adjustment range and improve the control precision.
Therefore, the sowing machine with the automatic sowing quantity control function is characterized in that: the seeding machine comprises a rack, a three-point suspension device, a seeding system, a press wheel, a depth wheel and a seeding quantity control system, wherein the rack comprises a left side plate, a right side plate, a first supporting beam, a second supporting beam and a third supporting beam which are fixedly connected between the left side plate and the right side plate; the lower suspension point and the upper suspension point of the three-point suspension device are respectively fixed on the first support beam and the second support beam; the seed discharging system comprises a plurality of seed discharging units arranged side by side, and the plurality of seed discharging units are arranged on the second supporting beam side by side;
the two depth wheels are respectively arranged at two ends of the first supporting beam;
each seed sowing unit comprises a parallel four-bar mechanism, a double-disc furrow opener, a pressing wheel carrier, a seed box fixedly connected to the parallel four-bar mechanism through a seed box fixing plate, an outer grooved wheel seed sowing device arranged at the bottom of the seed box and a pressing wheel arranged on the pressing wheel carrier, wherein the pressing wheel carrier and the double-disc furrow opener are arranged on the left side of the parallel four-bar mechanism together, and the right side of the parallel four-bar mechanism is fixed on a second supporting beam;
each outer grooved wheel seed sowing device comprises a seed sowing box, a blocking wheel, grooved wheels, a seed sowing shaft and two thrust bearings, wherein seed boxes of the seed sowing units are fixedly arranged on the seed sowing box, the right ends of the grooved wheels and the left ends of the blocking wheels penetrate into the seed sowing box, the grooved wheels and the blocking wheels can rotate in the seed sowing box, and the right ends of the grooved wheels and the left ends of the blocking wheels are attached; the inner ring of a thrust bearing on the left side of the outer grooved wheel seed sowing device is sleeved on the cylindrical surface of the left end of the grooved wheel, the outer ring of the thrust bearing on the left side of the outer grooved wheel seed sowing device is embedded in a clamping plate groove on the left side, one end of the thrust bearing on the left side of the outer grooved wheel seed sowing device is propped against the end surface of a clamping plate on the left side, the other end of the thrust bearing on the left side of the outer grooved wheel seed sowing device is propped against the stepped surface of the grooved wheel, the inner ring of the thrust bearing on the right side of the outer grooved wheel seed sowing device is sleeved on the cylindrical surface of the right end of a blocking wheel, the outer ring of the thrust bearing on the right side of the outer grooved wheel seed sowing device is embedded in a clamping plate groove on the right side, one end of the thrust bearing on the right side of the outer grooved wheel seed sowing device is propped against the end surface of the clamping plate on the right side, and the other end of the thrust bearing on the right side of the outer grooved wheel seed sowing device is propped against the stepped surface of the blocking wheel; the left clamp plate and the right clamp plate are respectively provided with two symmetrical through holes, one ends of two lead screws respectively penetrate through the corresponding through holes on the left clamp plate, the other ends of the two lead screws respectively penetrate through the corresponding through holes on the right clamp plate, one ends of the lead screws fix the left clamp plate through lead screw nuts positioned in front of and behind the left clamp plate, the other ends of the lead screws fix the right clamp plate through lead screw nuts positioned in front of and behind the right clamp plate, the fixed left clamp plate and the fixed right clamp plate axially position a thrust bearing, a grooved wheel and a baffle wheel between the left clamp plate and the right clamp plate, and when the clamp plates axially move, the thrust bearing, the grooved wheel and the baffle wheel can be driven to axially move in a seed box, so that the seed length adjustment is realized; the grooved wheel and the inner ring of the blocking wheel of each outer grooved wheel seed sowing device are both arranged on the seed sowing shaft, and the grooved wheel and the blocking wheel can synchronously rotate along with the seed sowing shaft and can slide on the seed sowing shaft;
the seeding control system comprises a control box, a length adjusting motor, a rotating speed adjusting motor and a rotating speed sensor, wherein a seeding input key and a single chip microcomputer are arranged in the control box, the rotating speed sensor is arranged on a depth wheel, the signal output end of the rotating speed sensor is connected with the rotating speed signal input end of the single chip microcomputer, a man-machine interface of the single chip microcomputer is connected with the seeding input key, the first motor control signal output end of the single chip microcomputer is connected with the control signal input end of the length adjusting motor, and the second motor control signal output end of the single chip microcomputer is connected with the control signal input end of the rotating speed adjusting motor;
the length adjustment motor and the rotating speed adjustment motor are respectively arranged on the right side plate and the left side plate, the rotating shaft of the rotating speed adjustment motor is connected with the left end of the seed sowing shaft through the corresponding coupler, the length adjustment motor is coaxially connected with the cylindrical cam through the corresponding coupler, the outer side wall of the cylindrical cam is provided with a cam groove, one end of the push rod is provided with a slide block in sliding fit with the cam groove, the other end of the push rod is fixed on a push rod connecting plate, the push rod connecting plate is fixed on a right side clamp plate of the rightmost outer grooved wheel seed sowing device, when the slide block of the push rod slides on the cam groove, the push rod connecting plate of the push rod can drive the right side clamp plate of the rightmost outer grooved wheel seed sowing device to translate, so that the grooved wheel driving each outer grooved wheel seed sowing device and the blocking wheel slide on the seed sowing shaft, and the grooved wheel seed sowing length adjustment is realized.
The invention respectively collects the rotating speeds of the left and the right land wheels through the two rotating speed sensors, and transmits the signals to the single chip microcomputer, the single chip microcomputer screens out signals with higher rotating speeds as input signals through comparison, so that the rotating speed signals with lower sliding rates are always adopted as the input signals when the sliding rates of the left and the right land wheels are different due to uneven ground surface, and the influence of the sliding rates of the land wheels on the uniformity of the broadcast volume (high rotating speed and low sliding rates) is further reduced. In addition, the invention can also adopt a combination mode of rotating speed control and length control to realize the seeding quantity control, thereby expanding the control range of the seeding quantity and improving the control precision of the seeding quantity.
Drawings
FIG. 1 is a three-dimensional structure diagram of an automatic seeding control seeder;
FIG. 2 is a diagram of the principle of controlling the seeding rate of a seeding machine for automatically controlling the seeding rate and a structure of a seed metering device;
FIG. 3 is a three-dimensional exploded view of a seed metering device structure of an automatic seeding rate control seeder;
FIG. 4 is a three-dimensional exploded view of a seeding system structure of an automatic seeding control seeder;
fig. 5 is a three-dimensional explosion diagram of a depth wheel structure of an automatic seeding quantity control seeder.
Wherein, 1-press wheel; 2-depth wheel; 201-U type card; 202-square tube; 203-axle connection plate; 204-axle; 205 — sensor probe; 206-sensor magnet; 207-tyre; 208-a bearing seat; 209-end cap; 210-depth wheel connecting rod; 3-left side plate; 4-lower suspension point; 5, a seeding system; 51, a seed box; 52-outer grooved wheel seed metering device; 521-a seeding box; 522-catch wheel; 523-sheave; 524-thrust bearing; 525-seed shaft, 526-step surface; 53-case fixing plate; 54-parallelogram linkage; 55-a parallelogram four-bar profile spring; 56-pressing wheel frame; 57-rolling the profiled spring; 6-upper hanging point; 7-double disc furrow opener; 8, controlling a box bracket; 9-a control box; 91-volume input key; 92-LCD display; 93-single chip microcomputer; 10-right side plate; 11-a first support beam; 12 — a second support beam; 13 — a third support beam; 14-a rotational speed sensor; 15-lead storage battery; 16-length adjustment motor; 17-a coupler; 18-a cylindrical cam; 18.1-cam groove; 19-a push rod; 19.1-push rod connecting plate, 19.2-slide block; 20-clamping plate, 20.1-through hole; 21-screw rod, 21.1-screw rod nut; 22-rotating speed regulating motor.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
the invention relates to a seeding rate automatic control seeder, which comprises a frame, a three-point suspension device, a seeding system 5, a press wheel 1, a depth wheel 2 and a seeding rate control system, wherein the frame comprises a left side plate 3, a right side plate 10, a first supporting beam 11, a second supporting beam 12 and a third supporting beam 13 which are fixedly connected between the left side plate 3 and the right side plate 10; the lower suspension point 4 and the upper suspension point 6 of the three-point suspension device are respectively fixed on the first support beam 11 and the second support beam 12; the seed sowing system 5 comprises six seed sowing units arranged side by side, and the six seed sowing units are arranged on the second supporting beam 12 side by side through U-shaped clamps 201;
the number of the depth wheels 2 is two, and the two depth wheels 2 are respectively arranged at two ends of the first supporting beam 11;
each seed sowing unit comprises a parallel four-bar mechanism 54, a double-disc furrow opener 7, a pressing wheel frame 56, a seed box 51 fixedly connected to the parallel four-bar mechanism 54 through a seed box fixing plate 53, an outer grooved wheel seed sowing device 52 arranged at the bottom of the seed box 51 and a pressing wheel 1 arranged on the pressing wheel frame 56, wherein the pressing wheel frame 56 and the double-disc furrow opener 7 are arranged on the left side of the parallel four-bar mechanism 54 together, and the right side of the parallel four-bar mechanism 54 is fixed on a second supporting beam 12;
each outer grooved wheel seed sowing device 52 comprises a seed sowing box 521, a baffle wheel 522, a grooved wheel 523, a seed sowing shaft 525 and two thrust bearings 524, wherein a seed box 51 of the seed sowing unit is fixedly arranged on the seed sowing box 521, the right end of the grooved wheel 523 and the left end of the baffle wheel 522 penetrate into the seed sowing box 521, the grooved wheel 523 and the baffle wheel 522 can rotate in the seed sowing box 521, and the right end of the grooved wheel 523 is attached to the left end of the baffle wheel 522; an inner ring of a thrust bearing 524 on the left side of the outer grooved wheel seed metering device 52 is sleeved on a cylindrical surface at the left end of the grooved wheel 523, an outer ring of the thrust bearing 524 on the left side of the outer grooved wheel seed metering device 52 is embedded in a groove of a clamping plate 20 on the left side, one end of the thrust bearing 524 on the left side of the outer grooved wheel seed metering device 52 is propped against the end surface of the clamping plate 20 on the left side, the other end of the thrust bearing 524 on the left side of the outer grooved wheel seed metering device 52 is propped against a step surface 526 of the grooved wheel 523, an inner ring of the thrust bearing 524 on the right side of the outer grooved wheel seed metering device 52 is sleeved on a cylindrical surface at the right end of a blocking wheel 522, an outer ring of the thrust bearing 524 on the right side of the outer grooved wheel seed metering device 52 is embedded in a groove of the clamping plate 20 on the right side, one end of the thrust bearing 524 on the right side of the outer grooved wheel seed metering device 52 is propped against a step surface 526 of the blocking wheel 522; the left clamp plate 20 and the right clamp plate 20 are respectively provided with two symmetrical through holes 20.1, one ends of two screw rods 21 respectively penetrate through the corresponding through holes 20.1 on the left clamp plate 20, the other ends of the two screw rods 21 respectively penetrate through the corresponding through holes 20.1 on the right clamp plate 20, one ends of the screw rods 21 fix the left clamp plate 20 through screw nuts 21.1 positioned in front of and behind the left clamp plate 20, the other ends of the screw rods 21 fix the right clamp plate 20 through screw nuts 21.1 positioned in front of and behind the right clamp plate 20, the fixed left clamp plate 20 and the fixed right clamp plate 20 axially position a thrust bearing 524, a grooved pulley 523 and a baffle wheel 522 between the left clamp plate 20 and the right clamp plate 20, and when the clamp plate 20 axially moves, the thrust bearing 524, the grooved pulley 523 and the baffle wheel 522 can be driven to axially move in the seed box 521, so that seed metering length adjustment is realized; the inner rings of the grooved wheel 523 and the blocking wheel 522 of each outer grooved wheel seed metering device 52 are both arranged on a seed metering shaft 525, and the grooved wheel 523 and the blocking wheel 522 can synchronously rotate along with the seed metering shaft 525 and can slide on the seed metering shaft 525;
the seeding control system comprises a control box 9, a length adjusting motor 16, a rotating speed adjusting motor 22 and a rotating speed sensor 14, wherein a seeding input key 91 and a single chip microcomputer 93 are arranged in the control box 9, the rotating speed sensor 14 is installed on the depth wheel 2, the signal output end of the rotating speed sensor 14 is connected with the rotating speed signal input end of the single chip microcomputer 93, a man-machine interface of the single chip microcomputer 93 is connected with the seeding input key 91, the first motor control signal output end of the single chip microcomputer 93 is connected with the control signal input end of the length adjusting motor 16, and the second motor control signal output end of the single chip microcomputer 93 is connected with the control signal input end of the rotating speed adjusting motor 22;
the length adjusting motor 16 and the rotating speed adjusting motor 22 are respectively arranged on the right side plate 10 and the left side plate 3, a rotating shaft of the rotating speed adjusting motor 22 is connected with the left end of the seeding shaft 525 through a corresponding coupler 17, the length adjusting motor 16 is coaxially connected with the cylindrical cam 18 through a corresponding coupler 17, the outer side wall of the cylindrical cam 18 is provided with a cam groove 18.1, one end of the push rod 19 is provided with a slide block 19.2 in sliding fit with the cam groove 18.1, the other end of the push rod 19 is fixed on the push rod connecting plate 19.1, the push rod connecting plate 19.1 is fixed on the right side clamp plate 20 of the rightmost outer grooved wheel seeding unit 52, when the slide block 19.2 of the push rod 19 slides on the cam groove 18.1, the push rod connecting plate 19.1 of the push rod 19 can drive the right side clamp plate 20 of the rightmost outer grooved wheel 52 to move in a translation manner, so as to drive the grooved wheel 523 and the baffle 522 of each outer grooved wheel 52 to slide on the seeding shaft 525, thereby realizing the length adjustment of the grooved wheels.
In the above technical scheme, the seed discharging unit further comprises a parallel four-bar copying spring 55 and a suppressing copying spring 57; the parallelogram four-bar linkage 55 is hung on two opposite bars of the parallelogram four-bar linkage 54, one end of a suppression contour spring 57 is fixed on the suppression wheel 1, and the other end of the suppression contour spring 57 is fixed on the suppression wheel carrier 56. When the local surface height is uneven in work, parallel four-bar copying spring 55 will compress or extend, make parallel four-bar linkage 54 drive two disc furrow openers 7 and fluctuate, two disc furrow opener 7 profile modeling along with the ground, guarantee to broadcast deeply unanimously, suppression copying spring 57 also can compress or extend, realize that suppression wheel 1 floats from top to bottom, under the combined action that parallel four-bar linkage 54 floated with suppression wheel 1, guarantee suppression wheel 1 and earth's surface contact constantly, realize effective suppression.
In the above technical scheme, the control box 9 is fixed on the first supporting beam 11 through the control box support 8, the control box 9 is further provided with an LCD display 92, a display signal output end of the single chip microcomputer 93 is connected with a video signal input end of the LCD display 92, and a power interface of the single chip microcomputer 93 is connected with the lead-acid battery 15.
In the technical scheme, the number of the rotating speed sensors 14 is two, the two rotating speed sensors are both Hall sensors, rotating speed signals of the left depth wheel 2 and the right depth wheel 2 are respectively collected, the depth wheels 2 are provided with tires 207, and the depth wheels 2 are fixedly connected with the bearing seats 208; the axle 204 is fitted with bearings in the bearing housing 208 and is held in place by the end cap 209 so that the axle 204 can only rotate in the bearing housing 208; axle 204 is welded to axle connection plate 203; the wheel axle connecting plate 203 is fixed on the square pipe 202 through a U-shaped clamp 201; the sensor probe 205 is fixed on the wheel shaft 204, the sensor magnet 206 is fixed on the bearing seat 208, the square tube 202 is fixedly connected with the depth wheel connecting rod 210 to realize depth limiting profiling, the depth wheel connecting rod 210 is installed at the end of the first supporting beam 11, when the depth wheel 2 works, the sensor magnet 206 and the bearing seat 208 rotate around the wheel shaft 204 together, and when the sensor magnet 206 and the sensor probe 205 fixed on the wheel shaft 204 are on the same axis, the sensor probe 205 can record the acquired pulse signal.
In the technical scheme, the inner holes of the grooved wheel 523 and the blocking wheel 522 are hexagonal holes, the outer ring of the seeding shaft 525 is a hexagonal shaft, and the hexagonal holes of the grooved wheel 523 and the blocking wheel 522 are sleeved on the hexagonal seeding shaft 525. The structure realizes that the grooved wheel 523 and the baffle wheel 522 can synchronously rotate along with the seeding shaft 525 and can slide on the seeding shaft 525.
In the above technical solution, the double-disc furrow opener 7 is fixed on the parallel four-bar mechanism 54 through a U-shaped clamp 201.
In the above technical solution, the sensor probe 205 is fixed on the axle 204 through a circular plate, and the sensor magnet 206 is fixed on the bearing seat 208 through a plastic ring.
In the above technical solution, the single chip microcomputer 93 is configured to compare the rotation speed signals transmitted by the two rotation speed sensors 14, the single chip microcomputer 93 takes the faster rotation speed signal as a basis for controlling the length adjustment motor 16 and the rotation speed adjustment motor 22, and the single chip microcomputer 93 outputs the control signal of the length adjustment motor 16 and the control signal of the rotation speed adjustment motor 22 according to the stored relationship between the seeding quantity and the length and the rotation speed of the outer grooved wheel seed sowing device 52 according to the seeding quantity input by the seeding quantity input key 91.
When the length adjusting motor 16 receives a control signal from the single chip microcomputer 93 to rotate, the slider 19.2 of the push rod 19 starts to slide in the chute of the cylindrical cam 18, the push rod connecting plate 19.1 moves along with the slider, two through holes are symmetrically formed in the push rod connecting plate 19.1, the lead screw 21 penetrates through the through holes, the push rod connecting plate 19.1 and the rightmost clamp plate 20 are clamped tightly by the two lead screw nuts, the clamp plate 20 on the right side and the lead screw 21 are driven to translate, and the lead screw drives the grooved wheel 523 and the blocking wheel 522 to slide on the seeding shaft 525, so that the adjustment of the seeding length of the grooved wheel is realized. When the rotation speed adjusting motor 22 starts to rotate after receiving the control signal of the single chip microcomputer 93, the rotation speed of the seeding shaft 525 will change accordingly, so that the seeding rotation speed adjustment is realized, and the thrust bearing 524 is helpful for reducing the friction between the end surfaces of the grooved wheel 523 and the baffle wheel 522 and the clamping plate 20, and reducing the working resistance.
The working process of the invention is as follows: in operation, the left and right depth wheels 2 rotate along with the advancing of the unit, the working conditions are not identical due to uneven ground surface, the slip rates of the left and right ground wheels are different, the rotation speed sensors 14 respectively input collected rotation speed signals to the single chip microcomputer 93, and the single chip microcomputer 93 compares the rotation speed signals of the left and right depth wheels 2 to screen out signals with larger rotation speed as input signals. The single chip microcomputer 93 outputs a control signal of the length adjusting motor 16 and a control signal of the rotating speed adjusting motor 22 according to the seeding amount input by the seeding amount input key 91 and the relationship between the stored seeding amount and the length and the rotating speed of the outer grooved wheel seed metering device 52, when a signal is input, the length adjusting motor 16 starts to rotate, and the rotating speed of the rotating speed adjusting motor 22 is changed, so that the adjustment of the length and the rotating speed of the outer grooved wheel seed metering device 52 is realized. When the advancing speed of the unit is increased, in order to ensure constant seeding amount, the singlechip 93 adopts an optimal control scheme to control the rotation of the length adjusting motor 16 and the rotation speed of the rotation speed adjusting motor 22, increase the seeding length of the outer grooved wheel seed sowing device 52 and improve the rotation speed of the outer grooved wheel seed sowing device 52, and similarly, when the advancing speed of the unit is reduced, the singlechip 93 controls to reduce the seeding length of the outer grooved wheel seed sowing device 52 and reduce the rotation speed of the outer grooved wheel seed sowing device 52, so that uniform seeding amount is realized, and the control precision is improved.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (8)
1. The utility model provides a volume of broadcasting automatic control seeder which characterized in that: the seeding machine comprises a rack, a three-point suspension device, a seeding system (5), a press wheel (1), a depth wheel (2) and a seeding control system, wherein the rack comprises a left side plate (3), a right side plate (10), and a first supporting beam (11), a second supporting beam (12) and a third supporting beam (13) which are fixedly connected between the left side plate (3) and the right side plate (10); a lower suspension point (4) and an upper suspension point (6) of the three-point suspension device are respectively fixed on the first supporting beam (11) and the second supporting beam (12); the seeding system (5) comprises a plurality of seeding units arranged side by side, and the plurality of seeding units are arranged on the second supporting beam (12) side by side;
the number of the depth wheels (2) is two, and the two depth wheels (2) are respectively arranged at two ends of the first supporting beam (11);
each seed sowing unit comprises a parallel four-bar mechanism (54), a double-disc furrow opener (7), a press wheel frame (56), a seed box (51) fixedly connected to the parallel four-bar mechanism (54) through a seed box fixing plate (53), an outer grooved wheel seed sowing device (52) arranged at the bottom of the seed box (51) and a press wheel (1) arranged on the press wheel frame (56), wherein the press wheel frame (56) and the double-disc furrow opener (7) are arranged on the left side of the parallel four-bar mechanism (54), and the right side of the parallel four-bar mechanism (54) is fixed on a second supporting beam (12);
each outer grooved wheel seed sowing device (52) comprises a seed sowing box (521), a blocking wheel (522), grooved wheels (523), a seed sowing shaft (525) and two thrust bearings (524), a seed box (51) of a seed sowing unit is fixedly arranged on the seed sowing box (521), the right ends of the grooved wheels (523) and the left ends of the blocking wheels (522) penetrate into the seed sowing box (521), the grooved wheels (523) and the blocking wheels (522) can rotate in the seed sowing box (521), and the right ends of the grooved wheels (523) and the left ends of the blocking wheels (522) are attached; the inner ring of a thrust bearing (524) on the left side of an outer grooved wheel seed metering device (52) is sleeved on the cylindrical surface of the left end of a grooved wheel (523), the outer ring of the thrust bearing (524) on the left side of the outer grooved wheel seed metering device (52) is embedded in the groove of the clamping plate (20) on the left side, one end of the thrust bearing (524) on the left side of the outer grooved wheel seed metering device (52) is propped against the end surface of the clamping plate (20) on the left side, the other end of the thrust bearing (524) on the right side of the outer grooved wheel seed metering device (52) is propped against the stepped surface (526) of the grooved wheel (523), the inner ring of the thrust bearing (524) on the right side of the outer grooved wheel seed metering device (52) is sleeved on the cylindrical surface of the right end of a blocking wheel (522), the outer ring of the thrust bearing (524) on the right side of the outer grooved wheel seed metering device (52) is embedded in the groove of the clamping plate (20) on the right side, and the other end of the thrust bearing (524) on the right side of the outer grooved wheel seed metering device (522) is propped against the stepped surface (526); the left clamp plate and the right clamp plate (20) are respectively provided with two symmetrical through holes (20.1), one ends of two screw rods (21) respectively penetrate through the corresponding through holes (20.1) on the left clamp plate (20), the other ends of the two screw rods (21) respectively penetrate through the corresponding through holes (20.1) on the right clamp plate (20), one ends of the screw rods (21) fix the left clamp plate (20) through screw nuts (21.1) positioned in front of and behind the left clamp plate (20), the other ends of the screw rods (21) fix the right clamp plate (20) through screw nuts (21.1) positioned in front of and behind the right clamp plate (20), the fixed left clamp plate and right clamp plate (20) axially position a thrust bearing (524), a grooved pulley (523) and a blocking wheel (522) between the left clamp plate and the right clamp plate (20), and when the clamp plate (20) axially moves, the thrust bearing (524), the grooved pulley (523) and the blocking wheel (522) can be driven to axially move in a seed box (521), so that the seed sowing length is adjusted; the inner rings of a grooved wheel (523) and a blocking wheel (522) of each outer grooved wheel seed metering device (52) are both arranged on a seed metering shaft (525), and the grooved wheel (523) and the blocking wheel (522) can synchronously rotate along with the seed metering shaft (525) and can slide on the seed metering shaft (525);
the seeding control system comprises a control box (9), a length adjusting motor (16), a rotating speed adjusting motor (22) and a rotating speed sensor (14), a seeding input key (91) and a single chip microcomputer (93) are arranged in the control box (9), the rotating speed sensor (14) is installed on the depth wheel (2), the signal output end of the rotating speed sensor (14) is connected with the rotating speed signal input end of the single chip microcomputer (93), a man-machine interface of the single chip microcomputer (93) is connected with the seeding input key (91), the first motor control signal output end of the single chip microcomputer (93) is connected with the control signal input end of the length adjusting motor (16), and the second motor control signal output end of the single chip microcomputer (93) is connected with the control signal input end of the rotating speed adjusting motor (22);
the length adjusting motor (16) and the rotating speed adjusting motor (22) are respectively arranged on the right side plate (10) and the left side plate (3), the rotating shaft of the rotating speed adjusting motor (22) is connected with the left end of the seed discharging shaft (525) through a corresponding coupler (17), the length adjusting motor (16) is coaxially connected with the cylindrical cam (18) through the corresponding coupler (17), the outer side wall of the cylindrical cam (18) is provided with a cam groove (18.1), one end of the push rod (19) is provided with a sliding block (19.2) in sliding fit with the cam groove (18.1), the other end of the push rod (19) is fixed on the push rod connecting plate (19.1), the push rod connecting plate (19.1) is fixed on the right side clamp plate (20) of the rightmost outer grooved wheel seed discharging device (52), when the sliding block (19.2) of the push rod (19) slides on the cam groove (18.1), the push rod connecting plate (19.1) of the push rod (19) can drive the right side clamp plate (20) of the rightmost outer grooved wheel seed discharging device (52), and accordingly the seed discharging device (52) and the seed discharging wheel (522) and the seed discharging shaft (525) can be driven to realize the adjustment of the grooved wheel blocking shaft.
2. The seeding machine with automatic seeding control according to claim 1, characterized in that: the seed sowing unit also comprises a parallel four-rod profile spring (55) and a suppressing profile spring (57); the parallel four-bar copying spring (55) is hung on two opposite bars of the parallel four-bar mechanism (54), one end of a press copying spring (57) is fixed on a press wheel (1), and the other end of the press copying spring (57) is fixed on a press wheel frame (56).
3. The seeding machine with automatic seeding control according to claim 1, characterized in that: the control box (9) is fixed on the first supporting beam (11) through a control box support (8), an LCD display (92) is further arranged in the control box (9), the display signal output end of the single chip microcomputer (93) is connected with the video signal input end of the LCD display (92), and the power interface of the single chip microcomputer (93) is connected with the lead-acid battery (15).
4. The seeding machine with automatic seeding control according to claim 1, characterized in that: the number of the rotating speed sensors (14) is two, the rotating speed sensors are Hall sensors, rotating speed signals of the left depth wheel (2) and the right depth wheel (2) are respectively collected, and the depth wheels (2) are fixedly connected with the bearing seats (208); the wheel shaft (204) is matched with a bearing in the bearing seat (208) and is pressed and positioned by the end cover (209), so that the wheel shaft (204) can only rotate in the bearing seat (208); the axle (204) is welded on the axle connecting plate (203); the wheel axle connecting plate (203) is fixed on the square pipe (202) through a U-shaped clamp (201); the sensor probe (205) is fixed on the wheel shaft (204), the sensor magnet (206) is fixed on the bearing seat (208), the square tube (202) is fixedly connected with the depth wheel connecting rod (210) to realize depth-limiting profiling, the depth wheel connecting rod (210) is installed at the end of the first supporting beam (11), when the depth wheel (2) works, the sensor magnet (206) and the bearing seat (208) rotate around the wheel shaft (204), and when the sensor magnet (206) and the sensor probe (205) fixed on the wheel shaft (204) are on the same axis, the sensor probe (205) can record an acquired pulse signal.
5. The seeding machine with automatic seeding control according to claim 1, characterized in that: inner holes of the grooved wheel (523) and the blocking wheel (522) are hexagonal holes, an outer ring of the seeding shaft (525) is a hexagonal shaft, and the hexagonal holes of the grooved wheel (523) and the blocking wheel (522) are sleeved on the hexagonal seeding shaft (525).
6. The seeding machine with automatic seeding quantity control according to claim 1, characterized in that: the double-disc furrow opener (7) is fixed on the parallel four-bar mechanism (54) through a U-shaped clamp (201).
7. The seeding machine with automatic seeding control according to claim 4, wherein: the sensor probe (205) is fixed on the wheel shaft (204) through a circular plate, and the sensor magnet (206) is fixed on the bearing seat (208) through a plastic circular ring.
8. The seeding machine with automatic seeding control according to claim 4, wherein: the single chip microcomputer (93) is used for comparing rotating speed signals transmitted by the two rotating speed sensors (14), the single chip microcomputer (93) takes the faster rotating speed signal as a basis for controlling the length adjusting motor (16) and the rotating speed adjusting motor (22), and the single chip microcomputer (93) outputs a length adjusting motor (16) control signal and a rotating speed adjusting motor (22) control signal according to the stored seeding amount input by the seeding amount input key (91) and the relation between the stored seeding amount and the length and the rotating speed of the outer grooved wheel seed sowing device (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827660.0A CN107593049B (en) | 2017-09-14 | 2017-09-14 | Seeding machine capable of automatically controlling seeding quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827660.0A CN107593049B (en) | 2017-09-14 | 2017-09-14 | Seeding machine capable of automatically controlling seeding quantity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107593049A CN107593049A (en) | 2018-01-19 |
| CN107593049B true CN107593049B (en) | 2023-04-07 |
Family
ID=61062253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710827660.0A Active CN107593049B (en) | 2017-09-14 | 2017-09-14 | Seeding machine capable of automatically controlling seeding quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107593049B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108064501A (en) * | 2018-01-30 | 2018-05-25 | 河南科技大学 | A kind of intelligence precision drilling fertilizing box |
| CN109076750B (en) * | 2018-10-11 | 2020-04-21 | 长江大学 | Double-gate-plate precision seed divider |
| CN109247089A (en) * | 2018-11-26 | 2019-01-22 | 山东国丰机械有限公司 | One seedling band arranges multifunctional corn seeder |
| CN109429623A (en) * | 2018-12-29 | 2019-03-08 | 南京农业大学 | Rice and kernel sowing pressure ditch device |
| CN110024534B (en) * | 2019-04-22 | 2021-03-30 | 中国矿业大学 | Thunberg fritillary bulb seeder |
| CN110393061A (en) * | 2019-07-15 | 2019-11-01 | 安徽农业大学 | A kind of line-spacing regulating device for seeder |
| CN114793564B (en) * | 2022-04-14 | 2023-03-28 | 黑龙江省农业机械工程科学研究院 | Automatic seed sorting device and method for community sowing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2083834U (en) * | 1990-06-30 | 1991-09-04 | 上海市前哨农场农修厂 | Suspended power direct seeding machine for rice |
| CN2283348Y (en) * | 1997-01-10 | 1998-06-10 | 刘西厚 | External sheave type seeding quantity adjuster for seeder |
| CN2305833Y (en) * | 1997-08-29 | 1999-02-03 | 上海市嘉定区农业机械化研究所 | Rice direct seeder |
| CN2764118Y (en) * | 2005-02-25 | 2006-03-15 | 董怡为 | Rape seed precision and ounce discharging device |
| CN201029273Y (en) * | 2007-04-16 | 2008-03-05 | 刘凤玲 | Inclining type external fluted-wheel seeder |
| US8671857B2 (en) * | 2011-03-10 | 2014-03-18 | Cnh Canada, Ltd. | Variable geometry meter roller |
| CN207284158U (en) * | 2017-09-14 | 2018-05-01 | 华中农业大学 | The amount of broadcasting automatically controls seeder |
-
2017
- 2017-09-14 CN CN201710827660.0A patent/CN107593049B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107593049A (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107593049B (en) | Seeding machine capable of automatically controlling seeding quantity | |
| CN108353582B (en) | Eccentric rotating conical disc sequencing type precision seeder | |
| CN107182385B (en) | Smart smart volume maize seeding monomer | |
| CN104285559B (en) | A kind of garlic planter and method of work thereof | |
| CN103329667B (en) | Plant-to-row seed drill | |
| CN103605382A (en) | Automatic control device of powder height | |
| CN107347314B (en) | Large-particle-size seed plot seeder and seeding method | |
| CN219205167U (en) | Original soil improvement equipment | |
| CN213718687U (en) | Agricultural intelligent fertilizer injection unit | |
| CN208708122U (en) | A kind of Sowing machine for potatoes and its intelligent feed mechanism for seed | |
| CN110140460B (en) | A turn over and plough, integrative device of seeding for maize seeding | |
| CN207505412U (en) | A kind of novel and multifunctional soil testing and fertilizer fertilizer distributor | |
| CN207284158U (en) | The amount of broadcasting automatically controls seeder | |
| CN105532142A (en) | Automatic precision uniform seed feeding device | |
| CN205305391U (en) | Automatic even kind of device that adds of smart volume | |
| CN110985554B (en) | Quantitative feeding device for automatic linear guide rail pair ball mounting device | |
| CN210634799U (en) | Weighing device is used in canning of pvc heat stabilizer raw materials | |
| CN112425317B (en) | Automatic seeder of agricultural | |
| CN110881289B (en) | Seeder of adjustable seeding fertilization interval and degree of depth | |
| CN110203430B (en) | Accurate high-efficient racking machine of crop fine variety | |
| CN218526745U (en) | Discharging device for seeding | |
| CN211931339U (en) | Sweet potato is planted and is used fertilizer injection unit | |
| CN109041694B (en) | Seeding device for vegetable planting | |
| CN220326239U (en) | Adjustable fertilizer unloader | |
| CN218865671U (en) | Resistance to compression detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |