CN201781762U - Single-grain seed-metering device - Google Patents
Single-grain seed-metering device Download PDFInfo
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- CN201781762U CN201781762U CN2010202924266U CN201020292426U CN201781762U CN 201781762 U CN201781762 U CN 201781762U CN 2010202924266 U CN2010202924266 U CN 2010202924266U CN 201020292426 U CN201020292426 U CN 201020292426U CN 201781762 U CN201781762 U CN 201781762U
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- seed
- simple grain
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Abstract
The utility model provides a single-grain seed-metering device, which is provided with an outer casing. The single-grain seed-metering device is characterized in that two casings are abutted to form the outer casing, the outer casing is provided with a feeding opening and a discharge opening, a special-shaped wheel is disposed on the inner side of one casing, a seeding wheel which is spliced with the special-shaped wheel is arranged in the outer casing, two wheel discs are abutted to form the seeding wheel, radial slide ways are uniformly distributed in the seeding wheel peripherally, and seeding blocks are respectively arranged in the radial slide ways and led out from the outer edge of the seeding wheel, a pit is arranged on each seeding block at a position close to one side of the outer end of the seeding block, inner ends of the seeding blocks are tightly pressed onto the outer edge of the special-shaped wheel through torsional springs arranged in the seeding wheels, and a driving sleeve is fixed at the center of the seeding wheel and mounted on the special-shaped wheel through a bearing. The single-grain seed-metering device has the advantages that the single-grain seed-metering device can realize high-speed single-grain seeding, accurately controls seeding quantity, does not miss plants, has high single-grain seeding success rate higher than 97%, is suitable to various ground seeding operation, and can be used for seeding large grains such as corns, soybeans, peanuts and the like.
Description
Technical field
The utility model is particularly related to a kind of cereal simple grain seeding unit.
Background technology
Seeding unit is mounted in the interior dispenser of kind case of sower, and along with the raising gradually of seed bud ratio, seeding unit is developed to monoseeding by many traditional sowings.CN201107888 discloses a kind of roll-over formula precise seeder, and its structure is to be made of housing, claw plate, inoculation dish and separator disc.This seeding unit is by the spoon hole allocated catch seed on pusher dog on the claw plate and the external end head thereof; correspondence connection by the seed inlet place of inoculation hole above separator disc on spoon hole and the inoculation dish is delivered to the inoculation hole with simple grain or many seeds, discharges by sowing port again.The problem that this seeding unit exists is: 1, be difficult to realize sowing at a high speed, can produce bigger centrifugal force when the claw plate rotating speed is higher, the seed that is positioned at the spoon hole of pusher dog is gone back the no show seed inlet and will be thrown out of under centrifugal action, cause the phenomenon of being short of seedling; 2, when the upper seeding wheel operation of scraggly ground, seeding unit can continue to jolt, and the seed that is positioned at the spoon hole of pusher dog is run out easily, causes and is short of seedling, and therefore is not suitable at scraggly ground seeding operation.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of simple grain of can realizing to sow at a high speed, and seeding quantity control accurately is not short of seedling, and is adapted at the cereal simple grain seeding unit of various ground seeding operation.
The utility model is achieved in that it has a shell, its special character is: described shell is to be formed by two housing butt joints, on shell, be provided with the uncovered and discharging opening of charging, a housing inboard is provided with special-shaped wheel therein, be provided with the seeding wheel of pegging graft in the enclosure with special-shaped wheel, seeding wheel is to be formed by two wheel disc butt joints, in seeding wheel, along the circumferential direction be evenly equipped with radially slideway, radially be respectively equipped with seed spot in the slideway, seed spot is drawn by the seeding wheel outer rim, on seed spot, be provided with the spoon hole near its outer end one side, the inner of described seed spot is pressed on special-shaped wheel outer rim by the torsion spring that is located in the seeding wheel, be installed with actuating sleeve at the seeding wheel center, actuating sleeve is installed on the special-shaped wheel by bearing.
Above-mentioned cereal simple grain seeding unit, described special-shaped wheel cross section outer rim Lower Half is that semicircle, the first half are parabola shaped for being similar to, and first half arc length is less than the Lower Half arc length.
Above-mentioned cereal simple grain seeding unit, the seed spot outer end was 1-2mm with the spacing of shell circumferential inner wall when seed spot rotated to the Lower Half of special-shaped wheel when described seed spot stretched out the seeding wheel maximum length, and is accurate to guarantee seeding quantity control.
Above-mentioned cereal simple grain seeding unit, described wheel disc outer rim is taper, once can only carry a seed to guarantee seed spot, can not carry unnecessary seed.
Above-mentioned cereal simple grain seeding unit, the corresponding spoon of described seed spot hole one side is a pointed shape, once can only carry a seed to guarantee seed spot, can not carry unnecessary seed.
Above-mentioned cereal simple grain seeding unit, described two wheel discs are pegged graft mutually by the alignment pin of circumference uniform distribution.
Above-mentioned cereal simple grain seeding unit is positioned at the annular step scalariform groove that the middle part of slideway radially is respectively equipped with mutual correspondence on the opposite face of two wheel discs, described torsion spring is located in the groove by bearing pin.
Above-mentioned cereal simple grain seeding unit, the radially slideway mouth place of corresponding spoon hole one side is provided with pit respectively on seeding wheel, seed is stuck between spoon hole and the pit, guarantees that the seed clamping is firm.
Above-mentioned cereal simple grain seeding unit is provided with circular locating shoulder in abnormal shape wheel outer rim near connected housing place, and the wheel disc of close special-shaped wheel one side of seeding wheel is enclosed within on the locating shoulder by matched in clearance, to guarantee seeding wheel and special-shaped concentricity of taking turns.
Above-mentioned cereal simple grain seeding unit, described radially slideway are by all being laid in respectively on two wheel discs and corresponding mutually chute combines.
The utility model has the advantages that: because seed spot the inner is pressed on special-shaped wheel outer rim under the torsion spring effect, when seed spot carries a seed and rotates to the first half of special-shaped wheel by spoon hole, seed spot just can be withdrawn under the torsion spring effect automatically, seed firmly is clipped between spoon hole and the seeding wheel, even rotating speed is high again, centrifugal force ground big again or sowing is rough and uneven in surface, seed can not throw away from the spoon hole or run out yet, therefore can realize that simple grain sows at a high speed, seeding quantity control accurately, can not be short of seedling, the monoseeding success rate can reach more than 97%, is adapted at various ground seeding operation, can be used for sowing corn, soybean, peanuts etc. are planted the bigger cereal of grain.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a right view of the present utility model;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the structural representation that removes top housing, wheel disc and seed spot among Fig. 1;
Fig. 5 is the B-B cutaway view of Fig. 2.
Among the figure: shell 1, charging is uncovered 101, discharging opening 102, seed spot 2, spoon hole 201, special-shaped wheel 3, locating shoulder 301, seeding wheel 4, radially slideway 401, pit 402, groove 403, housing 5, housing 6, wheel disc 7, wheel disc 8, actuating sleeve 9, bearing 10, alignment pin 11, torsion spring 12, bearing pin 13.
Embodiment
As Fig. 1-shown in Figure 5, this cereal simple grain seeding unit has a shell 1, described shell 1 is to be formed by connecting by bolt by two housings 5 and 6, on shell 1, be provided with charging uncovered 101 and discharging opening 102, charging uncovered 101 and discharging opening 102 lay respectively at the vertical center line both sides of shell 1, and discharging opening 102 is positioned on the circle wall of bottom, shell 1 left side.The circle centre position of housing 6 inboards is installed with abnormal shape wheel 3 therein, and described special-shaped wheel 3 cross section outer rim Lower Halves are that semicircle, the first half are approximate parabola shaped, and first half arc length is less than the Lower Half arc length.Take turns 3 outer rims in abnormal shape and be provided with circular locating shoulder 301 near connected housing 6 places.In shell 1, be provided with the seeding wheel 4 of pegging graft with special-shaped wheel 3, this seeding wheel 4 is to be pegged graft mutually by the alignment pin 11 of circumference uniform distribution by two wheel discs 7 and 8 to form, described wheel disc outer rim is taper, in seeding wheel 4, along the circumferential direction be evenly equipped with radially slideway 401, this radially slideway 401 be by all being laid in respectively on two wheel discs 7 and 8 and corresponding mutually chute combines, in the present embodiment radially slideway 401 quantity be example with eight.Radially be respectively equipped with seed spot 2 in the slideway 401 at each, seed spot 2 is drawn by seeding wheel 4 outer rims, on seed spot 2, be provided with size and can only hold single seeded spoon hole 201 near outer end one side, described seed spot 2 corresponding spoon holes 201 1 sides are pointed shape, to guarantee that seed spot 2 once can only carry a seed, can not carry unnecessary seed.401 mouthfuls of places of radially slideway of corresponding spoon hole 201 1 sides are provided with pit 402 respectively on seeding wheel 4, seed is stuck between spoon hole 201 and the pit 402, guarantee that the seed clamping is firm.Corresponding each seed spot 2 middle part are respectively equipped with torsion spring 12 in seeding wheel 4, the middle part that torsion spring 12 1 ends are stuck in the seeding wheel 4, the other end inserts seed spot 2, the inner of described seed spot 2 is for semicircle and be pressed on special-shaped wheel 3 outer rims under torsion spring 12 effects, and the spacing of seed spot 2 outer ends and shell 1 circumferential inner wall was 1-2mm when seed spot 2 rotated to the Lower Half of special-shaped wheel 3 when seed spot 2 stretched out seeding wheel 4 maximum lengths.Be positioned at the annular step scalariform groove 403 that slideway 401 middle parts radially are respectively equipped with mutual correspondence on the opposite face of described two wheel discs 7 and 8, described torsion spring 12 is located in the groove 403 by bearing pin 13.Wheel disc 8 centers that are positioned at special-shaped wheel 3 opposite sides on seeding wheel 4 are installed with actuating sleeve 9, actuating sleeve 9 endoporus are arranged with Ka Tai, actuating sleeve 9 one ends be inserted in the special-shaped wheel 3 and by bearing 10 be installed on the special-shaped wheel 3, the other end is drawn by the housing 5 of homonymy and with housing 5 centre bore matched in clearance.Wheel disc 7 near special-shaped wheel 3 one sides on the described seeding wheel 4 is enclosed within on the locating shoulder 301 by matched in clearance, to guarantee the concentricity of seeding wheel 4 and special-shaped wheel 3.
For reducing the friction between special-shaped wheel 3 outer rims and the seed spot 2, can process gap and rolling bearing is set in gap at the inner end of seed spot 2.For guaranteeing the concentricity after two housings 5 and 6 dock, the socket of mutual interlock can be set at the joint of two housings 5 and 6.
During installation, this seeding unit is fixed on the exit of sowing machine case, driving shaft is penetrated actuating sleeve 9 and is connected with the transmission mechanism of sower.During work, by animal power or locomotive traction sower, successively through the transmission mechanism of sower, driving shaft drives actuating sleeve 9 and seeding wheel 4 rotations, make the center rotation of seed spot 2 around seeding wheel 4, the bottom Shi Hui that rotates to charging uncovered 101 when each seed spot 2 cheats 201 pockets by spoon and plays a seed, when seed spot 2 rotates to the first half of special-shaped wheel 3, because the first half is non-semicircle, seed spot 2 can be withdrawn rapidly under the effect of torsion spring 12, seed is clamped between spoon hole 201 and the pit 402 securely, when seed spot 2 rotates to the first half end of approaching special-shaped wheel 3, again seed spot 2 is ejected by abnormal shape wheel 3, thereby seed is discharged, and the seed after the release is finally discharged by discharging opening 102.
Claims (10)
1. cereal simple grain seeding unit, comprise shell, it is characterized in that: described shell is to be formed by two housing butt joints, on shell, be provided with the uncovered and discharging opening of charging, a housing inboard is provided with special-shaped wheel therein, be provided with the seeding wheel of pegging graft in the enclosure with special-shaped wheel, seeding wheel is to be formed by two wheel disc butt joints, in seeding wheel, along the circumferential direction be evenly equipped with radially slideway, radially be respectively equipped with seed spot in the slideway, seed spot is drawn by the seeding wheel outer rim, on seed spot, be provided with the spoon hole near its outer end one side, the inner of described seed spot is pressed on special-shaped wheel outer rim by the torsion spring that is located in the seeding wheel, is installed with actuating sleeve at the seeding wheel center, and actuating sleeve is installed on the special-shaped wheel by bearing.
2. cereal simple grain seeding unit according to claim 1 is characterized in that: described special-shaped wheel cross section outer rim Lower Half is approximate parabola shaped for semicircle, the first half, and first half arc length is less than the Lower Half arc length.
3. cereal simple grain seeding unit according to claim 1 is characterized in that: the spacing of seed spot outer end and shell circumferential inner wall was 1-2mm when seed spot rotated to the Lower Half of special-shaped wheel when described seed spot stretched out the seeding wheel maximum length.
4. cereal simple grain seeding unit according to claim 1 is characterized in that: described wheel disc outer rim is taper.
5. cereal simple grain seeding unit according to claim 1 is characterized in that: the corresponding spoon of described seed spot hole one side is a pointed shape.
6. according to claim 1 or 4 described cereal simple grain seeding units, it is characterized in that: described two wheel discs are pegged graft mutually by the alignment pin of circumference uniform distribution.
7. according to claim 1 or 4 described cereal simple grain seeding units, it is characterized in that: be positioned at the annular step scalariform groove that the middle part of slideway radially is respectively equipped with mutual correspondence on the opposite face of two wheel discs, described torsion spring is located in the groove by bearing pin.
8. cereal simple grain seeding unit according to claim 1 is characterized in that: the radially slideway mouth place of corresponding spoon hole one side is provided with pit respectively on seeding wheel.
9. cereal simple grain seeding unit according to claim 1 and 2, it is characterized in that: be provided with circular locating shoulder in abnormal shape wheel outer rim near connected housing place, the wheel disc near special-shaped wheel one side on the described seeding wheel is enclosed within on the locating shoulder by matched in clearance.
10. cereal simple grain seeding unit according to claim 1 is characterized in that: described radially slideway is by all being laid in respectively on two wheel discs and corresponding mutually chute combines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202924266U CN201781762U (en) | 2010-08-07 | 2010-08-07 | Single-grain seed-metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202924266U CN201781762U (en) | 2010-08-07 | 2010-08-07 | Single-grain seed-metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201781762U true CN201781762U (en) | 2011-04-06 |
Family
ID=43813754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202924266U Expired - Fee Related CN201781762U (en) | 2010-08-07 | 2010-08-07 | Single-grain seed-metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201781762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104396392A (en) * | 2014-11-04 | 2015-03-11 | 中国农业科学院棉花研究所 | Seed metering device capable of automatically clearing seeds |
-
2010
- 2010-08-07 CN CN2010202924266U patent/CN201781762U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104396392A (en) * | 2014-11-04 | 2015-03-11 | 中国农业科学院棉花研究所 | Seed metering device capable of automatically clearing seeds |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20190807 |