CN112369169A - Auxiliary seed filling air suction type precise seed sowing device with negative pressure air chamber concave-convex sealing structure - Google Patents
Auxiliary seed filling air suction type precise seed sowing device with negative pressure air chamber concave-convex sealing structure Download PDFInfo
- Publication number
- CN112369169A CN112369169A CN202011331809.4A CN202011331809A CN112369169A CN 112369169 A CN112369169 A CN 112369169A CN 202011331809 A CN202011331809 A CN 202011331809A CN 112369169 A CN112369169 A CN 112369169A
- Authority
- CN
- China
- Prior art keywords
- seed
- air chamber
- machine body
- outer shell
- rear machine
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/18—Machines for depositing quantities of seed at intervals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
The invention relates to the technical field of agricultural seeding, in particular to an auxiliary seed-filling air-suction type precision seed-metering device with a negative-pressure air chamber concave-convex sealing structure, which comprises an outer shell, a rear machine body, a transmission mechanism and a seed cleaning mechanism, wherein the outer shell and the rear machine body are assembled, the seed cleaning mechanism is arranged in the outer shell, the transmission mechanism is arranged in the rear machine body, a seed plate is arranged on the transmission mechanism, circular bosses are arranged on the inner side and the outer side of the back plate surface of the seed plate, the back machine body comprises an air chamber, circular grooves are arranged on the inner side and the outer side of the air chamber, the concave-convex sealing structure is formed under the mutual matching of the circular bosses and the circular grooves, the seed plate and the air chamber can be sealed and attached to form a sealed negative-pressure air chamber, the sealing performance between the seed plate and the air chamber is not, thereby causing the conditions of reduced operation precision of the seeding apparatus and increased air pressure demand.
Description
The technical field is as follows:
the invention relates to the technical field of agricultural seeding, in particular to an auxiliary seed filling air-suction type precision seed sowing device with a concave-convex sealing structure of a negative pressure air chamber.
Background art:
the precision seeding is the operation of seeding seeds into a soil layer with a certain depth according to a certain quantity and a certain grain distance, the advantages of saving cost and increasing efficiency are outstanding advantages of the precision seeding, and the precision seeding has important significance for improving the yield per unit of grain, reducing cost and guaranteeing grain safety.
The working principle of the air-suction seed metering device is that air in an air chamber is extracted by a fan, so that the air chamber is in a vacuum state, seeds are adsorbed by negative pressure, so that the effect of accurately and effectively separating the seeds is achieved, the seeds adsorbed on a seed plate can reach a seed throwing area along with the rotation of the seed plate, the negative pressure disappears, the seeds are uniformly metered under the action of self weight, the tightness of the air chamber must be ensured when the air-suction seed metering device is metered, most of the air-suction seed metering devices in the market adopt a rubber sealing air cushion to be attached to the seed plate, but during the operation of the seed metering device, the seed plate rotates at high speed, the friction between the seed plate and the sealing air cushion is aggravated, the sealing air cushion is easy to wear and age, the problems of low operation precision of the seed metering device, increased air pressure demand and the like are caused, when the seed metering device operates at high speed, the phenomenon of charge leakage of a seed suction hole is caused, and the operation quality of the seed sowing device is influenced; when the air-suction type seed sowing device works, external environmental impurities enter the seed sowing device through the ventilation hole of the outer shell along with negative pressure airflow and are further blocked on the suction hole of the seed plate, when hard impurities are blocked on the suction hole, the seed plate needs to rotate to a seed discharging wheel and is ejected out for cleaning through the seed discharging wheel, if the hard impurities are large and are clamped on the seed plate, the seed plate can not be cleaned by the seed discharging wheel, the seed sowing device needs to be disassembled for cleaning the seed plate, and time and labor are wasted; and when flexible materials such as catkin, hair and the like are blocked on the suction holes, the seed can not be effectively cleaned through the seed unloading wheel, so that the effective seed suction of the next period of the seed tray is influenced.
The invention content is as follows:
aiming at the defects and problems, the invention provides an auxiliary seed filling air-suction type precision seed sowing device with a negative pressure air chamber concave-convex sealing structure, which is convenient to use, a concave-convex sealing structure is formed under the mutual matching of a circular boss and a circular groove, so that a seed plate and an air chamber can be attached in a sealing way, the sealing performance between the seed plate and an air chamber support is not required to be ensured through a sealing air cushion, and the environmental impurities blocked on the seed plate suction hole can be cleaned immediately under the action of an elastic self-cleaning mechanism, so that the condition that the effective seed suction of the next period of the seed plate is influenced due to the blocking of the environmental impurities on the suction hole is avoided.
The technical scheme adopted by the invention for solving the technical problems is as follows: an auxiliary seed filling air suction type precision seed sowing device with a concave-convex sealing structure of a negative pressure air chamber comprises an outer shell, a seed cleaning mechanism, a seed plate, a seed discharging mechanism, a transmission mechanism and a rear machine body, wherein the outer shell is assembled with the rear machine body in a buckling manner; the outer side of the outer shell is provided with a seed inlet, the bottom of the side surface of the outer shell is provided with a seed discharging port, the inner part of the outer shell is also provided with a seed carrying protective plate, and the bottom end of the seed carrying protective plate is fixed with the bottom in the outer shell; the seed disturbing machine comprises a rear machine body, a driving mechanism, a seed tray, a shell body, a driving mechanism and a driving mechanism, wherein the driving mechanism is arranged in the rear machine body and comprises a driving disc, a driving shaft and a shaft sleeve, the driving shaft is fixedly sleeved in the rear machine body through the shaft sleeve, the driving disc is fixed on the driving shaft, the seed tray is fixedly sleeved on the driving shaft and is fixedly connected with the rear disc surface of the seed tray, a plurality of suction holes are uniformly formed in the front disc surface of the seed tray along the circumferential direction, seed disturbing supporting bosses are circumferentially arranged on the periphery of the suction holes, the front disc surface of the seed tray corresponds to the shell body, ejection grooves; the seed discharging mechanism is arranged in the rear machine body, a fixing hole is formed in the rear machine body, the seed discharging mechanism comprises a seed discharging wheel, a connecting rod and a fixing seat, the fixing seat is fixed on the inner wall of the rear machine body, one end of the connecting rod is hinged to the fixing seat, the seed discharging wheel is arranged at the other end of the connecting rod, a spring is arranged on one side of the connecting rod, the spring is sleeved and fixed in the fixing hole, and the seed discharging wheel is attached to the ejection groove; the rear machine body comprises an air chamber and an exhaust pipe, the input end of the exhaust pipe is communicated with the air chamber in a sealing mode, annular grooves corresponding to the annular bosses are formed in the inner side and the outer side of the air chamber respectively, and the annular bosses on the rear disc surface of the disc are sleeved with the annular grooves in a sealing mode, so that the disc and the rear machine body jointly form a sealed negative pressure chamber.
Furthermore, the outer shell is provided with an adjusting hole corresponding to the seed cleaning brush, and the outer end of the seed cleaning brush is movably sleeved in the adjusting hole.
Furthermore, the clamping device further comprises a clamping spring and a clamping table, wherein the clamping spring and the clamping table are arranged on the outer side wall of the rear machine body, a positioning pile is arranged on the outer side edge of the outer shell, a mounting hole corresponding to the positioning pile is formed in the outer side edge of the rear machine body, the positioning pile is sleeved in the mounting hole in a matching mode, the positioning pile extends out of the mounting hole, one end of the clamping spring is fixed with the positioning pile extending out of the mounting hole, and the other end of the clamping spring is fixedly connected with the clamping table.
Further, it establishes in seed metering mouth top to take kind of backplate, and takes kind of backplate to be the arc structure, takes the bottom of kind of backplate and the interior bottom fixed connection of shell body, and the width of taking kind of backplate is unanimous with the interior bottom width of shell body.
Furthermore, the inner bottom of the outer shell is provided with a seed discharging port, the seed discharging port vertically corresponds to the seed inlet port, a seed discharging baffle is arranged on the seed discharging port, and the seed discharging baffle is detachable.
Further, still include layer height adjusting plate, be equipped with fixed slot on the inner wall of shell body, fixed slot fixes in the both sides of advancing the kind of a mouthful, is equipped with the adjustment tank on the outer wall of shell body, layer height adjusting plate suit is in fixed slot.
Further, the layer height adjusting plate is rectangular.
Furthermore, the seed disturbing supporting boss is obliquely arranged on the periphery of the suction hole along the circumferential direction.
The invention has the beneficial effects that:
first, convenient to use, under the mutually supporting of ring shape boss and ring shape recess, formed concave convex seal structure, can make and seal the laminating between kind dish and the air chamber, no longer need guarantee to plant the leakproofness between dish and the air chamber through sealed air cushion to avoided leading to sealed air cushion wearing and tearing and ageing because of the sealed air cushion of the high-speed rotatory friction of kind dish, thereby caused the seed metering ware operation precision to reduce the condition that the wind pressure demand increased.
Secondly, under the mutually supporting of broken line type pendulum rod and extension spring, can clear up the environmental impurity of shutoff on inhaling the hole by oneself, the terminal matching card of broken line type pendulum rod is in the draw-in groove between two adjacent seed disturbing support bosss, the terminal sheathed brush of broken line type pendulum rod can clear up environmental impurity, the dish is when rotating, broken line type pendulum rod is held the boss resistance and is driven by the seed disturbing, broken line type pendulum rod just can break away from the draw-in groove between two adjacent seed disturbing support bosss under the spring action of extension spring, the pendulum rod is when breaking away from the draw-in groove between two seed disturbing support bosss, the terminal brush of pendulum rod just can clear up inhaling hole and draw-in groove, clear up environmental impurity from inhaling hole or draw-in groove and discharge through the seed metering mouth, thereby avoided the environmental impurity shutoff on inhaling the hole to influence the effective seed sucking condition of next cycle of dish.
Thirdly, a spring is arranged in the sleeve, the elastic pin is arranged in the sleeve in a matching way, a brush is arranged on the elastic pin, the elastic pin can be popped out in the sleeve under the action of the spring, when the broken line type swing rod is driven by the resistance of the seed disturbing supporting bosses, a roller wheel at the bottom of the elastic pin can roll along the inner side surfaces of the seed disturbing supporting bosses to enable the elastic pin to be compressed, the broken line type swing rod can be separated from a clamping groove between two adjacent seed disturbing supporting bosses under the action of the elasticity of a tension spring, when the broken line type swing rod is separated from the clamping groove between the two adjacent seed disturbing supporting bosses under the action of the elasticity of the tension spring, the elastic pin is not in a compressed state any more and can be popped out from the sleeve, the length of the elastic pin is increased, when the broken line type swing rod is separated from the clamping groove between the two seed disturbing supporting bosses, the brush on the elastic pin can clean the suction hole and the clamping groove, and the cleaning area of the clamping groove between the, the condition that the tail end of the broken line type swing rod is short and cannot be cleaned when environmental impurities are clamped at the edge position of the clamping groove between the two seed disturbing supporting bosses is avoided, and the missing filling rate of seeds is reduced.
Fourthly, under the effect of the seed disturbing supporting boss arranged on the front disc surface of the seed disc, the disturbance of the seed group can be promoted, so that the suction holes can more efficiently adsorb the seeds, the supporting effect can also be realized on the seeds, the seed sucking air pressure of the seed sowing device is effectively reduced, the operation speed is improved, and the precision seeding of the seeds is ensured.
Fifthly, under the effect of carrying the seed protection plate, the situation that the seeds drop after the adsorbed seeds of the seed tray are avoided, and the adsorption effect of the seed tray is improved.
Description of the drawings:
fig. 1 is an exploded view of the present invention.
Fig. 2 is a second exploded view of the present invention.
FIG. 3 is a schematic view of the assembled structure of the present invention.
FIG. 4 is a second schematic view of the assembled structure of the present invention.
FIG. 5 is a schematic view of the rear body and the disk assembly structure.
Fig. 6 is a schematic structural diagram of the outer casing.
Fig. 7 is a second schematic structural diagram of the outer casing.
Fig. 8 is an enlarged schematic view of a portion a of fig. 7.
Fig. 9 is a schematic view of a structure using state of the elastic self-cleaning mechanism.
Fig. 10 is an enlarged schematic view of a portion B in fig. 9.
Fig. 11 is a third schematic structural diagram of the outer casing.
Fig. 12 is an enlarged schematic view of a portion C in fig. 11.
Fig. 13 is a schematic view of another structure of the elastic self-cleaning mechanism in a use state.
Fig. 14 is an enlarged schematic view of a portion D in fig. 13.
FIG. 15 is a diagram of one of the disc structures.
FIG. 16 is a second schematic diagram of a disc structure
FIG. 17 is a third schematic diagram of a disc structure
FIG. 18 is a fourth schematic diagram of a disk structure.
Fig. 19 is a schematic view of the rear body structure.
Fig. 20 is a second schematic view of the rear body structure.
Fig. 21 is a sectional view taken along line a-a' in fig. 20.
In the figure: 1-outer shell, 102-adjusting groove, 103-seed inlet, 104-seed layer height adjusting plate, 105-seed discharging port, 106-seed discharging plate, 107-positioning pile, 108-seed discharging port, 109-seed carrying baffle, 2-fixing rod, 201-seed cleaning sawtooth, 202-seed cleaning brush, 3-seed plate, 301-suction hole, 302-seed disturbing holding boss, 303-circular boss, 304-ejecting groove, 4-seed discharging mechanism, 401-seed discharging wheel, 402-connecting rod, 403-fixing seat, 5-driving plate, 501-shaft sleeve, 502-driving shaft, 6-fixing hole, 7-suction pipe, 71-air inlet, 72-air outlet, 8-rear body, 801-negative pressure air chamber, 802-mounting hole, 803-circular groove, 9-snap spring, 10-elastic self-cleaning mechanism, 1001-fixing seat, 1002-cross bar, 1003-broken line type swing rod, 1004-brush, 1005-tension spring fixing seat, 1006-tension spring, 11-sleeve, 12-elastic pin, 13-roller, 14-clamping table and 15-fixing clamping groove.
The specific implementation mode is as follows:
the invention is further illustrated with reference to the following figures and examples.
In view of the above problems, the present embodiment provides an auxiliary seed-filling air-suction type precision seed-metering device with a concave-convex sealing structure of a negative pressure air chamber, as shown in fig. 1-2, which includes an outer casing 1 and a rear machine body 8, wherein the outer side wall of the rear machine body 8 is provided with a clamp spring 9 and a clamping table 14, the clamp spring 9 is fixed with the rear machine body 8 through a bolt, the outer side edge of the rear machine body 8 is provided with a mounting hole 802, the outer side edge of the outer casing 1 is provided with a positioning pile 107, the positioning pile 107 of the outer casing 1 is fixed in the mounting hole 802 and extends out of the mounting hole 802, one end of the clamp spring 9 is fixed with the positioning pile 107 extending out of the mounting hole, and the other end is; the top of the outer shell 1 is provided with a vent hole, outside air enters the outer shell 1 through the vent hole, the outer side of the outer shell 1 is provided with a seed inlet 103, seeds enter the seed metering device from the seed inlet 103, the bottom of the side surface of the outer shell 1 is provided with a seed metering port 105, the inner bottom of the outer shell 1 is provided with a seed carrying baffle 109, the seed carrying baffle 109 is arc-shaped, the bottom end of the seed carrying baffle 109 is fixedly connected with the inner bottom of the outer shell 1, the width of the seed carrying baffle 109 is consistent with the width of the inner bottom of the outer shell 1, the top end of the seed carrying baffle 109 is higher than the seed inlet 103, the seed carrying baffle 109 can avoid the situation that the seeds are dropped after the seeds adsorbed by the seed plate 3, the inner bottom of the outer shell 1 inside the seed carrying baffle 109 is provided with a seed discharge port 108, the seed discharge port 108 corresponds to the seed inlet 103 up and down, a seed discharge plate, the seed carrying baffle 109 separates the seed discharging port 108 and the seed discharging port 105 to form a seed charging area and a seed discharging area, the inner side of the seed carrying baffle 109 is the seed charging area, the outer side of the seed carrying baffle is the seed discharging area, seeds enter the seed charging area through the seed inlet 103, when the seed type needs to be changed or the seeds are discharged during operation, the seed discharging plate 106 is detached, and the seeds can be discharged through the seed discharging port 108.
The outer shell 1 is provided with an adjusting hole 110, a seed cleaning mechanism is arranged in the outer shell 1 and comprises a fixed rod 2, a seed cleaning sawtooth 201 and a seed cleaning brush 202, the outer end of the seed cleaning brush 202 is movably clamped in the adjusting hole 110 and extends out of the adjusting hole 110, the seed cleaning brush 202 can be adjusted through the adjusting hole 110, one end of the fixed rod 2 is fixed with the inner wall of the outer shell 1, the seed cleaning sawtooth 201 is fixed at the other end of the fixed rod 2, and redundant seeds adsorbed by the seed sucking holes 301 of the seed trays 3 can be cleaned through the mutual matching of the seed cleaning sawtooth 201 and the seed cleaning brush 202; be equipped with fixed slot 15 on the inner wall of shells 1, fixed slot 15 is fixed on the both sides limit of advancing kind of a mouthful 103, and fixed slot 15 endotheca is equipped with height-adjusting plate 104, and height-adjusting plate 104 is the rectangle, is equipped with adjustment tank 102 on the shell body 1, can make height-adjusting plate 104 remove in fixed slot 15 as required through adjustment tank 102, adjusts the population height that fills kind of district.
A transmission shaft 502 is arranged in the rear machine body 8, the transmission shaft 502 is fixedly sleeved in the rear machine body 8 through a shaft sleeve 501, a transmission disc 5 is fixed on the rear machine body 8, a seed disc 3 is sleeved and fixed on the transmission shaft 502, the transmission disc 5 is fixedly connected with the rear disc surface of the seed disc 3, the front disc surface of the seed disc 3 corresponds to the outer shell 1, the rear disc surface of the seed disc 3 corresponds to the rear machine body 8, as shown in fig. 15-18, a plurality of suction holes 301 are uniformly arranged on the front disc surface of the seed disc 3 along the circumferential direction, seed disturbing supporting bosses 302 are circumferentially arranged on the periphery of the suction holes 301, the seed disturbing supporting bosses 302 are obliquely circumferentially arranged on the periphery of the suction holes 301, clamping grooves are formed between every two adjacent seed disturbing supporting bosses 302, ejection grooves 304 corresponding to the suction holes 301 are uniformly arranged on the rear disc surface of the seed disc 3 along the circumferential direction, the suction holes 301 are mutually communicated with the ejection grooves 304, and annular, and a fixing hole 6 is also arranged in the rear machine body 8; as shown in fig. 19-21, a fixing seat 403 is fixed on the inner wall of the rear body 8, a connecting rod 402 is arranged on the fixing seat 403, one end of the connecting rod 402 is hinged with the fixing seat 403, a seed discharging wheel 401 is mounted at the other end of the connecting rod 402, a spring is fixed on the side surface of the connecting rod 402, the spring is fixedly sleeved in the fixing hole 6, the seed discharging wheel 401 can be always attached to the ejection groove 304 on the rear disc surface of the disc 3 under the elastic force of the spring to do meshing motion, and can rotate along with the rotation of the disc 3 to eject the seeds adsorbed by the front disc surface suction holes 301 of the disc 3; an air chamber 801 is arranged in the rear machine body 8, an air exhaust pipe 7 is arranged on the rear machine body 8, an air inlet 71 of the air exhaust pipe 7 is communicated with the air chamber 801 in a sealing mode, an air outlet 72 of the air exhaust pipe 7 is connected with an external negative pressure fan, annular grooves 803 corresponding to the annular bosses 303 are formed in the inner side and the outer side of the air chamber 801, the annular bosses 303 on the rear disc surface of the seed disc 3 are in sealing sleeved fit with the annular grooves 803 on the air chamber 801, and the seed disc 3 and the air chamber 801 form a sealed negative pressure chamber.
When in use, as shown in fig. 3-4, the outer shell 1 and the rear body 8 are assembled and fixed together, seeds enter the seed filling area of the outer shell 1 through the seed inlet 103, the negative pressure fan is connected with the air outlet 72 of the air exhaust pipe 7, the air chamber 801 forms a sealed negative pressure air chamber with the seed disc 3 through the annular groove 803 and the annular boss 303, the negative pressure of the sealed negative pressure air chamber acts on the seeds in the seed filling area on the front disc surface of the seed disc 3 through the suction hole 301, the seeds are adsorbed on the suction hole 301 under the combined action of the negative pressure and the seed disturbing supporting boss 302, not only can the disturbance of the seed group be promoted, but also the seed can be adsorbed more efficiently by the suction hole 301, the seed can also be supported, the transmission shaft 502 rotates under the action of external force, the seed disc 3 is driven to rotate by the transmission disc 5, when the seed disc 3 rotates to the upper part inside the outer shell 1, the redundant seeds fall into the seed cleaning sawtooth 201 and the seed cleaning, the seed tray 3 continues to rotate to the upper part of the seed carrying protective plate 109, the seed carrying protective plate 109 is used for preventing the seeds adsorbed by the adsorption holes 301 on the seed tray 3 from falling off, the seed tray 3 continues to rotate to the upper part of the seed discharging wheel 401, when the seed tray 3 rotates to the seed discharging wheel 401, the seed discharging wheel 401 is always attached to the ejection groove 304 on the rear tray surface of the seed tray 3 to do meshing motion, the seed tray 3 can rotate along with the rotation of the seed tray 3, the seeds adsorbed by the adsorption holes 301 on the front tray surface of the seed tray 3 are ejected out, the negative pressure of the sealed negative pressure air chamber is blocked, the seeds fall into the seed discharging opening 105 under the combined action of gravity, centrifugal force and the ejection force of the seed discharging wheel 401, the seed discharging operation is completed, under the mutual matching of the circular boss 303 and the circular groove 803, a concave-convex sealing structure is formed, the seed tray 3 can be attached to the air chamber 801, and the condition that the operation precision of the seeding unit is reduced and the wind pressure demand is increased due to the fact that the sealing air cushion is abraded and aged due to the fact that the seed plate 3 rotates at a high speed to rub the sealing air cushion is avoided.
Example 2, the point of difference from example 1 will be mainly described in the auxiliary seed-charging air-suction type precision seed-metering device of the negative pressure air chamber concave-convex sealing structure in this embodiment.
In this embodiment, as shown in fig. 7-10, an elastic self-cleaning mechanism 10 is provided at the seed discharging port of the outer casing 1, the elastic self-cleaning mechanism 10 includes a fixing seat 1001, the fixing seat 1001 is fixed at an eccentric position of the inner wall of the outer casing 1, as shown in fig. 4, a cross bar 1002 is horizontally fixed on the fixing seat 1001, the end of the cross bar 1002 does not contact with the seed tray 3, the rotation of the seed tray 3 is not affected, a broken line type swing rod 1003 is hinged to the end of the cross bar 1002, a brush 1004 is sleeved at the tail end of the broken line type swing rod 1003, as shown in fig. 9, the tail end of the swing rod 1003 can be matched and clamped in a clamping groove between two adjacent seed disturbing supporting bosses 302 on the seed tray 3, a tension spring fixing seat 105 is fixed on the inner wall of the outer casing 1, one end of a; when the seed sowing device works, external environmental impurities enter the seed sowing device through the vent hole of the outer shell along with negative pressure airflow and are blocked on the suction hole 301, the environmental impurities blocked on the suction hole 301 can be automatically cleaned under the mutual matching of the broken line type swing rod 1003 and the tension spring 1006, the tail end of the broken line type swing rod 1003 is matched and clamped in a clamping groove between two adjacent seed disturbing supporting bosses 302 on the seed tray 3, a brush 1004 sleeved at the tail end of the broken line type swing rod 1003 can clean the environmental impurities, the broken line type swing rod 1003 is driven by the resistance of the seed disturbing supporting bosses 302 when the seed tray 3 rotates, the broken line type swing rod 1003 is separated from the clamping groove between the two adjacent seed disturbing supporting bosses 302 under the elastic force of the tension spring 1006, when the broken line type swing rod 1003 is separated from the clamping groove between the two seed disturbing supporting bosses 302, the brush 1004 at the tail end of the broken line type swing rod 1003 can clean the clamping groove between the suction hole 301 and the two adjacent seed disturbing supporting bosses 302, the environmental impurities are cleaned from the clamping groove between the suction hole 301 and the two adjacent seed disturbing supporting bosses 302 and are discharged through the seed discharging port 105, so that the situation that the environmental impurities are blocked on the suction hole 301 to influence the effective seed suction of the next period of the seed tray 3 is avoided.
Example 3, the point of difference from example 2 will be mainly described in the auxiliary seed-charging air-suction type precision seed-metering device of the negative pressure air chamber concave-convex sealing structure in this embodiment.
In this embodiment, as shown in fig. 11-14, a sleeve 11 is installed at the end of the broken line type swing link 1003, a pressure spring is installed in the sleeve 11, an elastic pin 12 is sleeved in the sleeve 11 in a matching manner through the pressure spring, a brush is sleeved on the inner side surface of the elastic pin 12, a roller 13 is sleeved on the bottom end of the elastic pin 12, the elastic pin 12 can be popped out in the sleeve 11 under the action of the pressure spring, when the broken line type swing link 1003 is driven by the resistance of the seed disturbing supporting boss 302, the roller 13 at the bottom of the elastic pin 12 can roll along the inner side surface of the seed disturbing supporting boss 302 to compress the elastic pin 12, and the broken line type swing link 1003 is separated from the slot between two adjacent seed disturbing supporting bosses 302 under the action of the elastic force of the tension spring 1006, as shown in fig. 14, the elastic pin 12 is no longer in a compressed state, just can pop out from the sleeve pipe 11 in, the length of elastic pin 12 has been increased, broken line type pendulum rod 1003 is when breaking away from the draw-in groove between two kinds of disturbing support bosss 302, the brush of elastic pin 12 medial surface just can clear up the draw-in groove between hole 301 and two kinds of disturbing support bosss 302, and through mutually supporting of elastic pin 12 and sleeve pipe 11, increased the clearance area to the draw-in groove between two adjacent kinds of disturbing support bosss 302, avoided when environmental contamination card is close to the draw-in groove border position between two kinds of disturbing support bosss 30, because of the terminal condition that can't clear up it of broken line type pendulum rod 1003 is short, and the hourglass rate of filling of seed has been reduced.
Example 4, the point of difference from example 1 will be mainly described in the auxiliary seed-charging air-suction type precision seed-metering device of the negative pressure air chamber concave-convex sealing structure in this embodiment.
In this embodiment, the seed tray 3 is a composite tray, which comprises a base tray body and a flexible tray body, the rear tray surface of the base tray body is fixedly connected with the transmission tray 5, a plurality of suction holes are uniformly arranged on the front tray surface of the base tray body along the circumferential direction, seed disturbing supporting bosses 302 are circumferentially arranged on the periphery of the suction hole 301, the seed disturbing supporting bosses 302 are obliquely circumferentially arranged on the periphery of the suction hole 301, a clamping groove is formed between every two adjacent seed disturbing supporting bosses 302, ejecting grooves 304 corresponding to the suction hole 301 are circumferentially and uniformly arranged on the rear tray surface of the seed tray 3, the suction hole 301 is communicated with the ejecting grooves 304, circular ring-shaped bosses 303 are arranged on the inner side and the outer side of the ejecting grooves 304, through holes corresponding to the suction hole 301 and the seed disturbing supporting bosses 302 are circumferentially arranged on the flexible tray body, the flexible tray body is fixedly connected with the base tray body into a whole through the through holes, seeds enter, the negative pressure fan is connected with the air outlet 72 of the exhaust tube 7, the air chamber 801 and the seed tray 3 form a sealed negative pressure air chamber through the annular groove 803 and the annular boss 303, the negative pressure of the sealed negative pressure air chamber acts on seeds in a seed filling area on the front tray surface of the seed tray 3 through the suction hole 301, the seeds are adsorbed on the through hole corresponding to the suction hole 301 on the flexible tray body under the combined action of the negative pressure and the seed disturbing supporting boss 302, and the seeds with larger particle size can be adsorbed and embedded on the through hole of the flexible tray body due to the flexibility of the flexible tray body, so that the gaps between the seeds and the suction hole 301 are reduced, the wind pressure demand of the seed metering device is reduced, and the condition that the seeds can fall from the suction hole 301 due to the unstable adsorption of the seeds and the overlarge gaps between the seeds and the suction hole 301 after the seeds are adsorbed by the suction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.
Claims (8)
1. An auxiliary seed filling air suction type precision seed sowing device with a concave-convex sealing structure of a negative pressure air chamber comprises an outer shell, a seed cleaning mechanism, a seed plate, a seed discharging mechanism, a transmission mechanism and a rear machine body, wherein the outer shell is assembled with the rear machine body in a buckling manner; the outer side of the outer shell is provided with a seed inlet, the bottom of the side surface of the outer shell is provided with a seed discharging port, the inner part of the outer shell is also provided with a seed carrying protective plate, and the bottom end of the seed carrying protective plate is fixed with the bottom in the outer shell; the seed disturbing machine comprises a rear machine body, a driving mechanism, a seed tray, a shell body, a driving mechanism and a driving mechanism, wherein the driving mechanism is arranged in the rear machine body and comprises a driving disc, a driving shaft and a shaft sleeve, the driving shaft is fixedly sleeved in the rear machine body through the shaft sleeve, the driving disc is fixed on the driving shaft, the seed tray is fixedly sleeved on the driving shaft and is fixedly connected with the rear disc surface of the seed tray, a plurality of suction holes are uniformly formed in the front disc surface of the seed tray along the circumferential direction, seed disturbing supporting bosses are circumferentially arranged on the periphery of the suction holes, the front disc surface of the seed tray corresponds to the shell body, ejection grooves; the seed discharging mechanism is arranged in the rear machine body, a fixing hole is formed in the rear machine body, the seed discharging mechanism comprises a seed discharging wheel, a connecting rod and a fixing seat, the fixing seat is fixed on the inner wall of the rear machine body, one end of the connecting rod is hinged to the fixing seat, the seed discharging wheel is arranged at the other end of the connecting rod, a spring is arranged on one side of the connecting rod, the spring is sleeved and fixed in the fixing hole, and the seed discharging wheel is attached to the ejection groove; the rear machine body comprises an air chamber and an exhaust pipe, the input end of the exhaust pipe is communicated with the air chamber in a sealing mode, annular grooves corresponding to the annular bosses are formed in the inner side and the outer side of the air chamber respectively, and the annular bosses on the rear disc surface of the disc are sleeved with the annular grooves in a sealing mode, so that the disc and the rear machine body jointly form a sealed negative pressure chamber.
2. The auxiliary seed-filling air-suction type precision seed-metering device with the negative-pressure air chamber concave-convex sealing structure as claimed in claim 1, wherein the outer shell is provided with an adjusting hole corresponding to the seed-cleaning brush, and the outer end of the seed-cleaning brush is movably sleeved in the adjusting hole.
3. The auxiliary seed-filling air-suction type precision seed-metering device with the negative-pressure air chamber concave-convex sealing structure as claimed in claim 1, further comprising a clamp spring and a clamping table, wherein the clamp spring and the clamping table are arranged on the outer side wall of the rear machine body, a positioning pile is arranged on the outer side edge of the outer shell, a mounting hole corresponding to the positioning pile is arranged on the outer side edge of the rear machine body, the positioning pile is sleeved in the mounting hole in a matching manner, the positioning pile extends out of the mounting hole, one end of the clamp spring is fixed with the positioning pile extending out of the mounting hole, and the other end of the clamp spring is fixedly.
4. The auxiliary seed charging air-suction type precision seed sowing device with the negative pressure air chamber concave-convex sealing structure according to claim 1, wherein the seed carrying protective plate is arranged above the seed sowing port and is of an arc-shaped structure, the bottom end of the seed carrying protective plate is fixedly connected with the inner bottom of the outer shell, and the width of the seed carrying protective plate is consistent with the width of the inner bottom of the outer shell.
5. The auxiliary seed-filling air-suction type precision seed-metering device with the negative pressure air chamber concave-convex sealing structure as claimed in claim 1, wherein a seed discharging port is arranged at the inner bottom of the outer shell, the seed discharging port is vertically corresponding to the seed inlet port, a seed discharging baffle is arranged on the seed discharging port, and the seed discharging baffle is detachable.
6. The auxiliary seed-filling air-suction type precision seed-metering device with the negative-pressure air chamber concave-convex sealing structure according to claim 1, further comprising a seed-layer height adjusting plate, wherein the inner wall of the outer casing is provided with fixing clamping grooves which are fixed at two sides of the seed inlet, the outer wall of the outer casing is provided with adjusting grooves, and the seed-layer height adjusting plate is sleeved in the fixing clamping grooves.
7. The auxiliary seed-filling air-suction type precision seed-metering device with the negative-pressure air chamber concave-convex sealing structure as claimed in claim 6, wherein the seed-level adjusting plate is rectangular.
8. The auxiliary seed charging air-suction type precision seed sowing device with the negative pressure air chamber concave-convex sealing structure as claimed in claim 1, wherein the seed disturbing supporting bosses are obliquely and circumferentially arranged on the periphery of the suction hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011331809.4A CN112369169A (en) | 2020-11-24 | 2020-11-24 | Auxiliary seed filling air suction type precise seed sowing device with negative pressure air chamber concave-convex sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011331809.4A CN112369169A (en) | 2020-11-24 | 2020-11-24 | Auxiliary seed filling air suction type precise seed sowing device with negative pressure air chamber concave-convex sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112369169A true CN112369169A (en) | 2021-02-19 |
Family
ID=74587934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011331809.4A Pending CN112369169A (en) | 2020-11-24 | 2020-11-24 | Auxiliary seed filling air suction type precise seed sowing device with negative pressure air chamber concave-convex sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112369169A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113366954A (en) * | 2021-05-27 | 2021-09-10 | 安徽农业大学 | Seed disturbing tooth auxiliary pneumatic garlic seed sowing device and seed sowing method |
| CN114731809A (en) * | 2022-05-13 | 2022-07-12 | 华南农业大学 | Auxiliary seed supporting air-suction type vegetable precision seed sowing device |
| CN115250691A (en) * | 2022-07-11 | 2022-11-01 | 中国农业机械化科学研究院集团有限公司 | High-speed precision seed sowing device and seed sowing method thereof |
| CN115500116A (en) * | 2022-10-26 | 2022-12-23 | 华南农业大学 | Pneumatic vegetable planter suitable for ridge culture |
-
2020
- 2020-11-24 CN CN202011331809.4A patent/CN112369169A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113366954A (en) * | 2021-05-27 | 2021-09-10 | 安徽农业大学 | Seed disturbing tooth auxiliary pneumatic garlic seed sowing device and seed sowing method |
| CN114731809A (en) * | 2022-05-13 | 2022-07-12 | 华南农业大学 | Auxiliary seed supporting air-suction type vegetable precision seed sowing device |
| CN115250691A (en) * | 2022-07-11 | 2022-11-01 | 中国农业机械化科学研究院集团有限公司 | High-speed precision seed sowing device and seed sowing method thereof |
| CN115250691B (en) * | 2022-07-11 | 2023-10-03 | 中国农业机械化科学研究院集团有限公司 | High-speed precise seed metering device and seed metering method thereof |
| CN115500116A (en) * | 2022-10-26 | 2022-12-23 | 华南农业大学 | Pneumatic vegetable planter suitable for ridge culture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112369169A (en) | Auxiliary seed filling air suction type precise seed sowing device with negative pressure air chamber concave-convex sealing structure | |
| CN213907440U (en) | Seed filling air-suction type precise seed sowing device with concave-convex sealing structure | |
| CN107896587B (en) | A kind of aspirated-air type high speed precise seeder with auxiliary seed-filling effect discharge plate | |
| CN109168453A (en) | A kind of Pneumatic type feed mechanism and its strength band of application send formula essence amount dispenser | |
| BR102020008746A2 (en) | SEED DOSAGE SET, AND, SEED DOSAGE MEMBER | |
| CN107318318A (en) | The adjustable Pneumatic seeding apparatus of one kind amount of broadcasting | |
| CN103355032A (en) | Pneumatic composite hole-type maize precision metering device | |
| CN114271077A (en) | Positive and negative pressure combined type soybean precision seed sowing device | |
| CN205623173U (en) | Drum -type seed metering ware | |
| JPH0671365B2 (en) | Seeding unit of single seeder | |
| CN213523045U (en) | Double leak-proof suction seed disc and air-suction type double-seedling-belt seed sowing device applying same | |
| CN104541696A (en) | Air suction metering device | |
| CN208850156U (en) | A kind of general precision drilling feed mechanism for seed | |
| CN203369085U (en) | Pneumatic combined hole type precise corn seed discharging device | |
| CN206078038U (en) | Smart volume seed metering ware of synchronous low pressure air -suction type in dish room | |
| CN112715105B (en) | Single-air-chamber double-chamber pneumatic seed sowing device | |
| CN206923268U (en) | The adjustable Pneumatic seeding apparatus of one kind amount of broadcasting | |
| CN108901270B (en) | Universal seed sowing device suitable for precise sowing of beans | |
| CN108243680A (en) | Aspiration inhales kind and scoops kind of a combine precision seed-metering with machinery | |
| CN210381867U (en) | Novel rice air-suction seed metering device | |
| CN211836813U (en) | Dust collector who connects at belt conveyor end | |
| CN207612602U (en) | A kind of aspirated-air type high speed precise seeder with auxiliary seed-filling effect discharge plate | |
| CN113366954A (en) | Seed disturbing tooth auxiliary pneumatic garlic seed sowing device and seed sowing method | |
| CN209861558U (en) | Positive and negative pressure combined type precise seed sowing device | |
| CN114532006A (en) | Positive and negative pressure air suction type roller precision seed sowing 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 |