CN109287206B - Multipurpose fast switching type pneumatic roller seed suction and discharge device and switching method - Google Patents
Multipurpose fast switching type pneumatic roller seed suction and discharge device and switching method Download PDFInfo
- Publication number
- CN109287206B CN109287206B CN201811173051.9A CN201811173051A CN109287206B CN 109287206 B CN109287206 B CN 109287206B CN 201811173051 A CN201811173051 A CN 201811173051A CN 109287206 B CN109287206 B CN 109287206B
- Authority
- CN
- China
- Prior art keywords
- switching
- disc
- vent
- air
- roller
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/04—Single-grain seeders with or without suction devices
- A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
- A01C7/044—Pneumatic seed wheels
- A01C7/046—Pneumatic seed wheels with perforated seeding discs
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Coating Apparatus (AREA)
- Sowing (AREA)
Abstract
The invention discloses a multipurpose fast switching type pneumatic roller seed suction and discharge device and a switching method, wherein the multipurpose fast switching type pneumatic roller seed suction and discharge device comprises a transmission shaft, a roller, a sealing disc, an air passage switching disc, an air distribution disc and at least one switching pin, wherein the transmission shaft sequentially penetrates through the centers of the sealing disc, the roller, the air passage disc, the air passage switching disc and the air distribution disc, the roller is fixed on the transmission shaft, one end of the roller is connected with the sealing disc, and the other end of the roller is connected with the air passage disc; the ventilation plate is connected with the transmission shaft through a key, the ventilation plate and the air channel switching plate are connected through a switching pin and are switched through an air channel, and the air channel switching plate and the air distribution plate rotate relatively. The switching of different groups of axial ventilation grooves in the roller is realized through the air passage switching disk, the adaptability and the universality of the pneumatic roller seed suction and sowing device are improved, and the machine cost is effectively reduced.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to a multipurpose quick switching type pneumatic roller seed suction and sowing device and a switching method, which are suitable for seeds with large characteristic differences of shape, size, weight and the like.
Background
The industrialized plug seedling technology can shorten the cultivation period, improve the multiple cropping index and the land utilization rate, and is increasingly emphasized in the field of agricultural planting. A precision seed suction and discharge device is key equipment for realizing precision seeding in industrialized plug seedling production. The pneumatic drum-type seed sucking and discharging device is not easy to damage seeds and is suitable for the requirement of large-scale industrialized plug seedling high-speed sowing operation. In order to adapt to the differences of physical characteristics of different crop seeds such as shape, size, weight and the like and the differences of requirements on the specifications of seedling raising hole trays, the research on a pneumatic roller type seed suction and discharge device with high precision, multiple purposes and strong universality becomes a hotspot concerned by current scholars.
The utility model discloses a cylinder pneumatic vegetable planter that discloses as patent number ZL200520023056.5, include by the pivot that the seated bearing supported, fix epaxial cylinder and breather in the pivot, wherein breather's positive negative pressure conversion can be realized for the rotation of fixed breather dish through rotating the breather dish, has simplified the structural design who takes a breath by the solenoid valve, can reduce the air consumption by a wide margin, improves seeding efficiency, mainly is suitable for the spherical seed of well small-scale. On the basis of the structure, the invention patent with the patent number ZL201310488122.5 has the advantages that the seed scraping device is arranged on the roller, the re-sowing rate of the special-shaped small and medium-sized seeds can be reduced, the sowing precision is improved, and the seed sowing device is suitable for precision sowing of the small and medium-sized seeds with different shapes. However, the suction and seed discharge devices with the two structures have the same defects in practical application: the seed sowing roller is only provided with the seed sucking and discharging holes with one specification and position layout, and is only suitable for seeds with similar characteristics and plug precision sowing with the same specification; this results in low application rate and inflexible application of the same device, and each kind of seeds needs to be equipped with a seed suction and discharge device, which is costly to apply.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a multipurpose quick switching type pneumatic roller seed suction and discharge device which can adapt to seeds with large characteristic differences of appearance, size, weight and the like and the seeding requirements of hole tray precision of different specifications, is flexible and convenient to use and effectively reduces the application cost of the seed suction and discharge device.
The invention also aims to provide a switching method of the multipurpose quick switching type pneumatic roller seed suction and sowing device, which has the advantages of simple switching action, high efficiency and good universality.
The technical scheme of the invention is as follows: a multipurpose fast switching type pneumatic roller seed suction and discharge device comprises a transmission shaft, a roller, a sealing disc, an air passage disc, an air distribution disc and at least one switching pin, wherein the transmission shaft sequentially penetrates through the centers of the sealing disc, the roller, the air passage disc, the air passage switching disc and the air distribution disc, the roller is fixed on the transmission shaft, one end of the roller is connected with the sealing disc, and the other end of the roller is connected with the air distribution disc; the air channel switching plate and the air distribution plate rotate relatively; the roller is provided with a plurality of axial vent groove groups, each axial vent groove group comprises one or more axial vent grooves, the surface of the roller corresponding to each axial vent groove is provided with a suction and discharge hole, and the suction and discharge holes are communicated with the axial vent grooves; the vent disc is provided with a plurality of groups of first vent hole groups, each group of first vent hole groups comprises one or more first vent holes, and the first vent holes are communicated with the axial vent grooves in a one-to-one correspondence manner; the air passage switching plate is provided with a group of second vent hole groups, each second vent hole group comprises one or more second vent holes, and each second vent hole is communicated with each first vent hole of one group of first vent hole groups in the vent plate in a one-to-one correspondence mode.
As a preferred scheme, the number of the switching pins is two, two pin threaded holes are symmetrically distributed on the ventilation disc along the center, and the switching pins are fixedly arranged in the pin threaded holes; the air passage switching disk is distributed with a plurality of groups of switching holes, the number of the groups of the switching holes is the same as that of the axial air channel groups, and when the air passage switching disk is fixed with the air passage switching disk, the switching pins are embedded and fixed in one group of the switching holes. The relative rotation angle between the air passage switching disk and the air vent disk is determined according to the number of the axial air vent groove groups on the roller.
Preferably, each set of axial ventilation slots comprises twelve axial ventilation slots on the drum; on the vent disc, each group of first vent hole groups correspondingly comprises twelve first vent holes; on the air passage switching plate, the second ventilation hole group correspondingly comprises twelve second ventilation holes.
On the roller, in the same group of axial vent grooves, the shape and the size of the suction and discharge holes on each axial vent groove are the same; the shapes or/and sizes of the suction and discharge holes are different among different axial vent groove groups, and different suction and discharge holes can be ventilated according to the needs, so that seeds with different suction and discharge shapes or/and sizes can be realized. Wherein, the structural style and the position layout of the seed sucking and discharging holes in each group of axial ventilating slot groups can be designed according to the seed type or the specification of the seedling raising plug tray.
The diameter of the axial vent groove, the aperture of the first vent hole and the aperture of the second vent hole are equal.
The middle part of the gas circuit switching disc is provided with a boss extending outwards, the gas distribution disc is arranged on the periphery of the boss, and the outer side of the gas distribution disc is provided with a groove; and a first locknut and a second locknut are respectively arranged at two ends of the transmission shaft, the first locknut is tightly pressed on one side of the sealing disc, and the second locknut is sequentially tightly connected with the groove of the gas distribution disc through a plane thrust bearing, a pressing plate and a spring. The gas circuit switching plate and the end face of the gas distribution plate are positioned and pressed tightly by screwing a second locknut compression spring, and the gas tightness between the gas circuit switching plate and the end face of the gas distribution plate which rotate relatively is ensured by adjusting the pressing force of the spring. The first locknut is arranged at one end of the transmission shaft and is in threaded fit with the transmission shaft, the end face of the ventilation disc and the end face of the air path switching disc are positioned and compressed by rotating the first locknut, the spring, the pressing plate, the plane thrust bearing and the second locknut are arranged at the other end of the transmission shaft, one end of the spring is fixedly connected with the air distribution disc, the other end of the spring is fixedly connected with one end face of the pressing plate, two end faces of the plane thrust bearing are respectively matched with the end faces of the pressing plate and the second locknut, the second locknut is matched with the transmission shaft through threads, the second locknut pressing spring is screwed, the air path switching disc and the end face of the air distribution disc are positioned and compressed, and the air tightness between the end faces of.
On the air distribution plate, the end face connected with the air channel switching plate is provided with a positive pressure groove and a negative pressure groove, the other end face is provided with a positive pressure hole and a negative pressure hole, the positive pressure groove is communicated with the positive pressure hole, the negative pressure groove is communicated with the negative pressure hole, the positive pressure hole is externally connected with a positive pressure air source, the negative pressure hole is externally connected with a negative pressure air source, and the air channel switching plate is driven to rotate relative to the air distribution plate through the rotation of a transmission shaft so as to realize the switching of positive pressure and negative pressure. When the seed suction and seeding device works, the transmission shaft drives the roller, the sealing disc, the ventilation disc and the air channel switching disc to integrally rotate relative to the air distribution disc so as to realize the switching of negative pressure seed suction or positive pressure seed seeding.
And a bearing seat arranged on the rack is arranged at one end of the transmission shaft, the bearing seat and the gas distribution plate are oppositely arranged at two ends of the transmission shaft, and a connecting plate is arranged at the bottom of the gas distribution plate and also arranged on the rack.
The connecting plate is provided with a guide groove for adjusting the relative installation position of the gas distribution plate, and the fixed position of the connecting plate and the rack is adjusted through the guide groove.
The switching method of the multipurpose fast switching type pneumatic roller seed suction and sowing device comprises the following steps:
(1) after the contact between the air channel switching disc and the air distribution disc is released, the roller is pulled, so that the roller drives the air channel switching disc to be separated from the air channel switching disc in the axial direction, and the switching pin is completely separated from the air channel switching disc;
(2) selecting a corresponding axial vent groove group and a first vent hole group according to the type of seeds or the specification of a seedling raising plug tray;
(3) rotating the roller to drive the ventilation disc and the air channel switching disc to rotate relatively until the selected first ventilation hole group and the second ventilation hole group correspond to each other;
(4) promote the cylinder, make the cylinder drive the dish of ventilating and be close to the motion of gas circuit switching dish, after switching pin embedding gas circuit switching dish, the dish of ventilating is fixed with gas circuit switching dish, and axial air channel, first vent hole group and second vent hole group three communicate.
The working principle of the multipurpose quick switching type pneumatic roller seed suction and discharge device is as follows:
initially, a switching pin is matched with a certain group of switching holes on the air channel switching disc, in order to meet the requirement of precision seeding of a certain type of seeds or a certain specification of seedling raising plug tray, firstly, a first locknut is loosened to enable the air vent disc and the air channel switching disc to be in a loosening state, then pulling the roller along the direction far away from the air channel switching plate to separate the air channel switching plate from the air channel switching plate by a certain distance along the direction of the transmission shaft, making the switching pin completely separate from the air channel switching plate, then rotating the roller to make the switching pin opposite to another group of switching holes on the air channel switching plate, at the moment, pushing the roller along the direction pointing to the air channel switching plate to insert the switching pin into another group of switching holes on the air channel switching plate, a certain group of axial ventilation grooves on the roller are communicated with a second ventilation hole on the air channel switching plate, and finally a first locknut is screwed down to enable the end surfaces of the ventilation plate and the air channel switching plate to be in a compact state, so that the switching of the seed suction and discharge assembly is completed; at the moment, a certain group of axial vent grooves on the roller are communicated with a seed sowing positive pressure air source or a seed sucking negative pressure air source in the air distribution disc, when the transmission shaft is driven to rotate by a motor, the sealing disc is driven to rotate, the roller, the vent disc and the air path switching disc rotate together, when the second vent holes on the air path switching disc are turned to the negative pressure groove position of the air distribution disc, negative pressure is introduced in the seed sucking and discharging holes, the seed adsorption function is realized, when the second vent holes on the air path switching disc are turned to the positive pressure groove position of the air distribution disc, positive pressure is introduced in the seed sucking and discharging holes, the seed sowing function is realized, and the precision sowing target of a certain.
Compared with the prior art, the invention has the following beneficial effects:
according to the multipurpose fast switching type pneumatic roller suction and seed sowing device, a plurality of groups of axial ventilation grooves are uniformly formed in the outer portion of the roller along the circumference, suction and seed sowing holes with the same structure and position are formed in the surface of the roller corresponding to each group of axial ventilation grooves, the structure and position layout of each group of suction and seed sowing holes are determined according to the type of seeds and the specification of a seedling raising hole tray, switching of different groups of axial ventilation grooves in the roller is achieved through the air passage switching tray, adaptability and universality of the pneumatic roller suction and seed sowing device are improved, and machine cost is effectively reduced.
According to the multipurpose rapid switching type pneumatic roller seed suction and discharge device, the end faces without relative rotation between the air passage switching disc and the air passage switching disc are compressed by screwing the first locknut, the end faces with relative rotation between the air passage switching disc and the air distribution disc are compressed by screwing the second locknut, the air tightness between the relative rotation end faces is ensured by adjusting the pressing force of the spring by adjusting the second locknut, and the multipurpose rapid switching type pneumatic roller seed suction and discharge device is simple in sealing method structure, low in cost and easy to adjust and operate.
The switching method of the multipurpose fast switching type pneumatic roller seed suction and discharge device comprises the steps of pulling the roller along the direction far away from the pneumatic switching disc by loosening the first locknut, enabling the switching pins fixed on the air channel switching disc to be completely separated from the air channel switching disc, rotating the roller, enabling the two switching pins to be opposite to the other switching hole on the air channel switching disc, pushing the roller along the direction of the air channel switching disc, enabling the two switching pins to be matched with the other switching hole on the air channel switching disc, and finally screwing the first locknut to complete the switching of the working air channels of the seed suction and discharge assembly.
Drawings
FIG. 1 is a schematic structural view of the multipurpose fast switching pneumatic roller seed suction and sowing device of the present invention.
FIG. 2 is a partial sectional view of the multipurpose fast switching pneumatic roller seed suction and feed device of the present invention.
Fig. 3a is a sectional view of the drum, fig. 3b is a sectional view of the drum taken along a-a direction, and fig. 3c is a partial enlarged view of E of fig. 3 b.
Figure 4a is a cross-sectional view of the vent disc and figure 4B is a cross-sectional view of the vent disc taken along the direction B-B.
FIG. 5a is a cross-sectional view of the air passage switching disk, and FIG. 5b is a cross-sectional view of the air passage switching disk taken along the direction C-C.
Fig. 6a is a cross-sectional view of the gas panel and fig. 6b is a cross-sectional view of the gas panel in the direction D-D.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
As shown in fig. 1 and fig. 2, the multi-purpose fast switching pneumatic roller suction and seed-metering device of the present embodiment includes a suction and seed-metering assembly, a support assembly and a sealing assembly.
As shown in fig. 1 and 2, the suction and discharge assembly includes a drum 1, a drive shaft 2, a seal disc 3, an air passage disc 4, an air passage switching disc 5, an air distribution disc 6, and two switching pins 7, the drive shaft passing through the centers of the seal disc, the drum, the air passage disc, the air passage switching disc, and the air distribution disc.
As shown in fig. 3a, 3b and 3c, one end of the roller is fixedly connected with the sealing disc, the other end of the roller is fixedly connected with the ventilating disc, the roller is provided with a plurality of axial ventilating groove groups, each axial ventilating groove group comprises twelve axial ventilating grooves 1-1, the surface of the roller corresponding to each axial ventilating groove is provided with a suction and discharge hole 1-2, the suction and discharge holes are communicated with the axial ventilating grooves, and the shape and the size of the suction and discharge holes on each axial ventilating groove are the same in the same axial ventilating groove group; the shapes or/and sizes of the suction and discharge holes are different among different sets of axial vent grooves.
As shown in fig. 4a and 4b, the vent disc is connected with the transmission shaft through a key, the vent disc is provided with a plurality of groups of first vent hole groups 4-1, each group of first vent hole groups comprises twelve first vent holes, each first vent hole is communicated with the axial vent groove in a one-to-one correspondence manner, two pin threaded holes 4-2 are symmetrically distributed on the vent disc along the center, and the switching pins are fixedly arranged in the pin threaded holes.
As shown in fig. 5a and 5b, the vent plate and the air path switching plate are connected by a switching pin for switching the air paths, the air path switching plate is provided with a group of second vent groups 5-1, each second vent group comprises twelve second vent holes, and each second vent hole is communicated with each first vent hole of one group of first vent groups in the vent plate in a one-to-one correspondence manner; the air passage switching disk is distributed with a plurality of groups of switching holes 5-2, the number of the groups of the switching holes is the same as that of the axial air duct groups, and when the air passage switching disk is fixed with the air passage switching disk, the switching pins are embedded and fixed in one group of the switching holes. The diameter of the axial vent groove, the aperture of the first vent hole and the aperture of the second vent hole are equal; the middle part of the air channel switching plate is provided with a boss extending outwards, the air distribution plate is arranged on the periphery of the boss, the outer side of the air distribution plate is provided with a groove, and in addition, a bearing (not shown in the figure) is arranged at the joint of the air distribution plate and the boss, so that the air channel switching plate and the air distribution plate rotate relatively.
As shown in fig. 6a and 6b, the end face of the air distribution plate connected with the air channel switching plate is provided with a positive pressure groove 6-1 and a negative pressure groove 6-2, the other end face is provided with a positive pressure hole 6-3 and a negative pressure hole 6-4, the positive pressure groove is communicated with the positive pressure hole, the negative pressure groove is communicated with the negative pressure hole, the positive pressure hole is externally connected with a positive pressure air source, the negative pressure hole is externally connected with a negative pressure air source, and the air channel switching plate is driven to rotate relative to the air distribution plate through the rotation of a transmission shaft so as to realize the switching of the positive pressure.
As shown in fig. 1 and 2, the support assembly includes a bearing seat 8, a connecting plate 9 and a frame 10, the bearing seat is fixed on the frame, the bearing seat is connected with one end of the transmission shaft, the bearing seat and the gas distribution plate are relatively located at two ends of the transmission shaft, the connecting plate is arranged at the bottom of the gas distribution plate, the connecting plate is also mounted on the frame, a guide groove is arranged on the connecting plate, and the fixing position of the connecting plate and the frame is adjusted through the guide groove.
As shown in fig. 1 and 2, the sealing assembly axially seals two ends of the seed suction and discharge assembly, the sealing assembly comprises a first locknut 11, a spring 12, a pressure plate 13, a planar thrust bearing 14 and a second locknut 15, the two ends of the transmission shaft are respectively provided with the first locknut and the second locknut, the first locknut is pressed on one side of the sealing disc, and the second locknut is sequentially pressed and connected with the groove of the gas distribution disc through the planar thrust bearing, the pressure plate and the spring; the first anti-loosening nut penetrates through one end of the transmission shaft and is in threaded fit with the transmission shaft, and the end face of the ventilation disc and the end face of the air channel switching disc are positioned and pressed tightly by rotating the first anti-loosening nut; the air channel switching plate is positioned and pressed on the end face of the air distribution plate, and the air tightness between the air channel switching plate and the end face of the air distribution plate in relative rotation is ensured by adjusting the pressing force of the spring.
The working principle of the multipurpose quick switching type pneumatic roller seed suction and discharge device is as follows:
firstly, loosening a first locknut to enable the air channel switching disc and the air channel switching disc to be in a loosening state, pulling the roller along a direction far away from the air channel switching disc to enable the air channel switching disc to be separated from the air channel switching disc by a certain distance along a transmission shaft direction, enabling two switching pins to be completely separated from the air channel switching disc, then rotating the roller to enable the two switching pins to be opposite to another group of switching holes on the air channel switching disc, pushing the roller along a direction pointing to the air channel switching disc, inserting the two switching pins into another group of switching holes on the air channel switching disc to enable a certain group of axial air channels on the roller to be communicated with a second air hole on the switching disc, and finally screwing the first locknut to enable the end faces of the air channel switching disc and the air channel switching disc to be in a compression state, completing the switching of the seed sucking and discharging assembly; at the moment, a certain group of axial vent grooves on the roller are communicated with a seed sowing positive pressure air source or a seed sucking negative pressure air source in the air distribution disc, when the transmission shaft is driven to rotate by a motor, the sealing disc is driven to rotate, the roller, the vent disc and the air path switching disc rotate together, when the second vent holes on the air path switching disc are turned to the negative pressure groove position of the air distribution disc, negative pressure is introduced in the seed sucking and discharging holes, the seed adsorption function is realized, when the second vent holes on the air path switching disc are turned to the positive pressure groove position of the air distribution disc, positive pressure is introduced in the seed sucking and discharging holes, the seed sowing function is realized, and the precision sowing target of a certain.
Example 2
The embodiment provides a switching method of the multipurpose fast switching type pneumatic roller seed suction and sowing device in the embodiment 1, which comprises the following steps:
(1) after the contact between the air channel switching disc and the air distribution disc is released, the roller is pulled, so that the roller drives the air channel switching disc to be separated from the air channel switching disc in the axial direction, and the switching pin is completely separated from the air channel switching disc;
(2) selecting a corresponding axial vent groove group and a first vent hole group according to the type of seeds or the specification of a seedling raising plug tray;
(3) rotating the roller to drive the ventilation disc and the air channel switching disc to rotate relatively until the selected first ventilation hole group and the second ventilation hole group correspond to each other;
(4) promote the cylinder, make the cylinder drive the dish of ventilating and be close to the motion of gas circuit switching dish, after switching pin embedding gas circuit switching dish, the dish of ventilating is fixed with gas circuit switching dish, and axial air channel, first vent hole group and second vent hole group three communicate.
Example 3
Compared with the embodiment 1, the embodiment provides a multipurpose fast switching type pneumatic roller seed suction and seeding device, which is different in that: on the roller, each axial air channel group comprises eight axial air channels; on the vent disc, each group of first vent hole groups correspondingly comprises eight first vent holes; on the air passage switching plate, the second ventilation hole group correspondingly comprises eight second ventilation holes.
Example 4
Compared with the embodiment 1, the embodiment provides a multipurpose fast switching type pneumatic roller seed suction and seeding device, which is different in that: on the roller, each axial air channel group comprises ten axial air channels; on the vent disc, each group of first vent hole groups correspondingly comprises ten first vent holes; on the air passage switching plate, the second ventilation hole group correspondingly comprises ten second ventilation holes.
As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.
Claims (8)
1. The multipurpose fast switching type pneumatic roller seed suction and discharge device is characterized by comprising a transmission shaft, a roller, a sealing disc, an air passage disc, an air distribution disc and at least one switching pin, wherein the transmission shaft sequentially penetrates through the centers of the sealing disc, the roller, the air passage disc, the air passage switching disc and the air distribution disc; the air channel switching plate and the air distribution plate rotate relatively;
the roller is provided with a plurality of axial vent groove groups, each axial vent groove group comprises one or more axial vent grooves, the surface of the roller corresponding to each axial vent groove is provided with a suction and discharge hole, and the suction and discharge holes are communicated with the axial vent grooves;
the vent disc is provided with a plurality of groups of first vent hole groups, each group of first vent hole groups comprises one or more first vent holes, and the first vent holes are communicated with the axial vent grooves in a one-to-one correspondence manner;
the air passage switching disc is provided with a group of second vent hole groups, each second vent hole group comprises one or more second vent holes, and the second vent holes are communicated with the first vent holes of one group of first vent hole groups in the vent disc in a one-to-one correspondence manner;
the switching pin is provided with two switching pins, two pin threaded holes are symmetrically distributed on the ventilation disc along the center, and the switching pin is fixedly arranged in the pin threaded holes; a plurality of groups of switching holes are distributed on the air path switching disk, the number of the groups of the switching holes is the same as that of the axial air duct groups, and when the air path switching disk is fixed with the air path switching disk, a switching pin is embedded and fixed in one group of the switching holes;
the middle part of the gas circuit switching disc is provided with a boss extending outwards, the gas distribution disc is arranged on the periphery of the boss, and the outer side of the gas distribution disc is provided with a groove;
and a first locknut and a second locknut are respectively arranged at two ends of the transmission shaft, the first locknut is tightly pressed on one side of the sealing disc, and the second locknut is sequentially tightly connected with the groove of the gas distribution disc through a plane thrust bearing, a pressing plate and a spring.
2. The multi-purpose fast switching pneumatic roller suction and seed metering device of claim 1, wherein each set of axial air vent slots on the roller comprises twelve axial air vent slots; on the vent disc, each group of first vent hole groups correspondingly comprises twelve first vent holes; on the air passage switching plate, the second ventilation hole group correspondingly comprises twelve second ventilation holes.
3. The multi-purpose fast switching pneumatic roller seed suction and discharge device of claim 1, wherein the shape and size of the seed suction and discharge holes on each axial air channel are the same in the same axial air channel group on the roller; the shapes or/and sizes of the suction and discharge holes are different among different sets of axial vent grooves.
4. The multipurpose fast switching pneumatic roller suction and seed metering device of claim 1, wherein the diameter of the axial ventilation groove, the aperture of the first ventilation hole and the aperture of the second ventilation hole are equal.
5. The multipurpose fast switching pneumatic roller seed suction and discharge device according to claim 1, wherein the air distribution plate is provided with a positive pressure groove and a negative pressure groove on the end surface connected with the air passage switching plate, and is provided with a positive pressure hole and a negative pressure hole on the other end surface, the positive pressure groove is communicated with the positive pressure hole, the negative pressure groove is communicated with the negative pressure hole, the positive pressure hole is externally connected with a positive pressure air source, and the negative pressure hole is externally connected with a negative pressure air source.
6. The multipurpose fast-switching pneumatic roller seed suction and sowing device according to claim 1, wherein a bearing seat mounted on the frame is arranged at one end of the transmission shaft, the bearing seat and the air distribution disc are oppositely positioned at two ends of the transmission shaft, a connecting plate is arranged at the bottom of the air distribution disc, and the connecting plate is also mounted on the frame.
7. The multipurpose rapid switching pneumatic roller seed suction and metering device of claim 6, wherein the connecting plate is provided with a guide groove for adjusting the relative installation position of the air distribution plate.
8. The switching method of the multi-purpose fast switching pneumatic roller seed suction and metering device of any one of claims 1 to 7, characterized by comprising the following steps:
(1) after the contact between the air channel switching disc and the air distribution disc is released, the roller is pulled, so that the roller drives the air channel switching disc to be separated from the air channel switching disc in the axial direction, and the switching pin is completely separated from the air channel switching disc;
(2) selecting a corresponding axial vent groove group and a first vent hole group according to the type of seeds or the specification of a seedling raising plug tray;
(3) rotating the roller to drive the ventilation disc and the air channel switching disc to rotate relatively until the selected first ventilation hole group and the second ventilation hole group correspond to each other;
(4) promote the cylinder, make the cylinder drive the dish of ventilating and be close to the motion of gas circuit switching dish, after switching pin embedding gas circuit switching dish, the dish of ventilating is fixed with gas circuit switching dish, and axial air channel, first vent hole group and second vent hole group three communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173051.9A CN109287206B (en) | 2018-10-09 | 2018-10-09 | Multipurpose fast switching type pneumatic roller seed suction and discharge device and switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173051.9A CN109287206B (en) | 2018-10-09 | 2018-10-09 | Multipurpose fast switching type pneumatic roller seed suction and discharge device and switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109287206A CN109287206A (en) | 2019-02-01 |
| CN109287206B true CN109287206B (en) | 2021-01-26 |
Family
ID=65161855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811173051.9A Active CN109287206B (en) | 2018-10-09 | 2018-10-09 | Multipurpose fast switching type pneumatic roller seed suction and discharge device and switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109287206B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114145105A (en) * | 2021-12-14 | 2022-03-08 | 广东海洋大学 | But seedling tray seeder of quick replacement seeding cylinder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2240670C2 (en) * | 2002-12-25 | 2004-11-27 | ГУ Всероссийский научно-исследовательский институт агролесомелиорации | Pneumatic seeding unit |
| CN2796331Y (en) * | 2005-06-28 | 2006-07-19 | 华南农业大学 | Drum pneumatic vegetable seed planter |
| CN102550181A (en) * | 2012-01-05 | 2012-07-11 | 台州赛得林机械有限公司 | Full-automatic drum-type precision seeding flow line |
| CN202385478U (en) * | 2011-11-30 | 2012-08-22 | 临海市万宏机电配件厂 | Pneumatic sowing machine with roller |
| CN202488978U (en) * | 2012-01-05 | 2012-10-17 | 台州赛得林机械有限公司 | Multi-specification adjustable seeder drum |
| CN105659999A (en) * | 2014-11-19 | 2016-06-15 | 现代农装科技股份有限公司 | Air-suction vegetable seedling-raising and precision seeding roller |
| CN205694204U (en) * | 2016-06-14 | 2016-11-23 | 农业部南京农业机械化研究所 | A kind of dish nursery pneumatic drum type feed mechanism for seed |
| CN207427775U (en) * | 2017-04-21 | 2018-06-01 | 东莞市稳锐五金模具有限公司 | A kind of power set of novel drum type tray seeder |
-
2018
- 2018-10-09 CN CN201811173051.9A patent/CN109287206B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2240670C2 (en) * | 2002-12-25 | 2004-11-27 | ГУ Всероссийский научно-исследовательский институт агролесомелиорации | Pneumatic seeding unit |
| CN2796331Y (en) * | 2005-06-28 | 2006-07-19 | 华南农业大学 | Drum pneumatic vegetable seed planter |
| CN202385478U (en) * | 2011-11-30 | 2012-08-22 | 临海市万宏机电配件厂 | Pneumatic sowing machine with roller |
| CN102550181A (en) * | 2012-01-05 | 2012-07-11 | 台州赛得林机械有限公司 | Full-automatic drum-type precision seeding flow line |
| CN202488978U (en) * | 2012-01-05 | 2012-10-17 | 台州赛得林机械有限公司 | Multi-specification adjustable seeder drum |
| CN105659999A (en) * | 2014-11-19 | 2016-06-15 | 现代农装科技股份有限公司 | Air-suction vegetable seedling-raising and precision seeding roller |
| CN205694204U (en) * | 2016-06-14 | 2016-11-23 | 农业部南京农业机械化研究所 | A kind of dish nursery pneumatic drum type feed mechanism for seed |
| CN207427775U (en) * | 2017-04-21 | 2018-06-01 | 东莞市稳锐五金模具有限公司 | A kind of power set of novel drum type tray seeder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109287206A (en) | 2019-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110089240B (en) | Seed metering ware suitable for middle, irregular seed of big particle diameter | |
| CN109287206B (en) | Multipurpose fast switching type pneumatic roller seed suction and discharge device and switching method | |
| CN2796331Y (en) | Drum pneumatic vegetable seed planter | |
| CN205179705U (en) | Volume of broadcasting adjustable seed metering ware | |
| CN205040213U (en) | Get adjustable air -suction type disseminator in kind of hole | |
| CN103329666A (en) | Push rod-mixing disc combination type bidirectional pneumatic precise seed sowing device for rice bud seed direct sowing | |
| CN105165188B (en) | A kind of hand push driven sucking precise drop planter | |
| KR20200139731A (en) | Air suction type garlic oriented seeding device | |
| CN201378936Y (en) | Combined precision seeder | |
| WO2008154855A1 (en) | A pneumatic dispenser with compound metering discs and a seeder | |
| CN106550630B (en) | A kind of adjustable seeder | |
| CN102668777A (en) | Horizontal disc set discharging type rape precise seed-metering device | |
| CN204069710U (en) | A kind of driven sucking precise seeder | |
| CN116941388A (en) | Double-cavity air suction type electric driving seeding monomer for corner seedlings | |
| CN208638945U (en) | A kind of seeder of vegetable cultivation | |
| CN204968457U (en) | Disseminator with adjustable | |
| CN102598929A (en) | Flexible circular disc type planting device | |
| CN202818939U (en) | Circumferential hole air-aspiration type seed-metering device | |
| CN211792846U (en) | Similar-ball type small-particle-size vegetable seed seeding device | |
| CN203788691U (en) | Combined integrated two-way seed suction disc | |
| CN209057504U (en) | A kind of interior inflatable Vicia sativa precise seeder | |
| CN108575217A (en) | A kind of each row can the electricity of independent start and stop on demand drive Centrifugal feed mechanism | |
| CN112655644A (en) | Temperature control device of fish-vegetable symbiotic system | |
| CN207911294U (en) | A kind of pneumatic seeder | |
| CN112449804A (en) | Single-double-grain adjustable air-suction cotton 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |