CA1043173A - Agricultural machine for sowing seeds - Google Patents
Agricultural machine for sowing seedsInfo
- Publication number
- CA1043173A CA1043173A CA216,887A CA216887A CA1043173A CA 1043173 A CA1043173 A CA 1043173A CA 216887 A CA216887 A CA 216887A CA 1043173 A CA1043173 A CA 1043173A
- Authority
- CA
- Canada
- Prior art keywords
- tubes
- plowshares
- reservoir
- central section
- shares
- 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.)
- Expired
Links
Landscapes
- Sowing (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The universal sowing machine according to the invention uses a feed hopper and an air pneumatic distributor which is lifted from the shares which are fixed on the lateral transoms of the sowing machine in order to assure a dropping of the seed leading pipes to the shares under an angle of about 9 degrees so that the rain water should drain freely from the seed distributor to the. shares and the seed conveying for the lateral shares should be done both by air flow and by gravity force. Thus the cloggings are removed and the working width can be increased.
On the main frame of the sowing machine there is welded a corner longer than the main frame so that the shares near the side transoms links should be continuously adjusted and when plying it is not necessary to remove the pipes from the sowing machine.
The universal sowing machine according to the invention uses a feed hopper and an air pneumatic distributor which is lifted from the shares which are fixed on the lateral transoms of the sowing machine in order to assure a dropping of the seed leading pipes to the shares under an angle of about 9 degrees so that the rain water should drain freely from the seed distributor to the. shares and the seed conveying for the lateral shares should be done both by air flow and by gravity force. Thus the cloggings are removed and the working width can be increased.
On the main frame of the sowing machine there is welded a corner longer than the main frame so that the shares near the side transoms links should be continuously adjusted and when plying it is not necessary to remove the pipes from the sowing machine.
Description
1~43173 The present invention relates to an agricultural machine, particularly a machine for sowing seeds or the like particulate material.
The machine of the invention is of the type comprising a frame made up of a central section at both ends of which side sections are pivoted. The central section is provided with a feeding hopper and distributors that receive the seeds from the feeding hopper and let them drop freely through a cone, there being a cone for each plowshare of the machine. From there, by 10 means of a high-speed air flow created by protuberances pro-jecting inside tubular outlet of a pneumatic distributor, the material is entrained through some fittings having several air inlet holes of which the diameters are of varying dimensions, being bigger at the center and decreasing toward the periphery.
In this manner, a constant front of material speed is produced over the whole working width of the sowing machine.
Known sowing machines have the disadvantage that when it rains, the rain water gathers in the sowing tubes which become clogged thereby reducing the working width of the machine as well as affecting seeding uniformity. Furthermore, joining the plowshares directly to the side sections of the frame leads to a complicated construction increasing the time required for folding the sowing machine from working position to transport position.
More specifically, the invention is an agricultural machine for distributing seeds or the like particulate material and comprising a frame having a bar formcd of a ccntral horizontal section and two side sections respectively pivotaIly end-connected to the ends of the central section to be displaced between a position in which the side sections are coaxial with the central section and a position in which they upstand there-from. A plurality of plowshare means are mounted on the ~k - 1 - ~
B
1~43173 sections, being spaced therealong, each plowshare means including an arm secured at one end to one of the sections and having a plowshare at the other end applicable against the earth for plowing. There is provided pneumatic distributor means including a pneumatic pressure fluid reservoir located about the central section and having a width not exceeding the central section.
This distributor means further includes fluid conveying tubes, one for each of the plowshare means. Each tube is connected at one end to the reservoir to receive pressure fluid from it and is connected at the other end to the plowshares to feed the parti-culate material thereto as the plowshares dig furrows into the earth.
In a preferred embodiment of the invention, the reservoir has fluid outlet holes therethrough to which the tubes are operatively connected, the tubes increasing in diameter from the center towards the ends of the reservoir whereby to produce substantially constant flow velocity of particulate material in the tubes.
In another preferred embodiment, the tubes are inclined downwardly from the reservoir towards the plowshares at an angle of approximately 9 whereby the particulate material may also fall by gravity.
A preferred embodiment of the invention wlll now be described having reference to the appended drawings wherein:
Figure 1 is a side elevation view of the sowing machine;
Figure 2 is a top plan view of the machine of Figure l;
Figure 3 is a cross-sectional view taken in a plane along line A-A of Figure 2;
Figure 4 is a longitudinal cross-sectional view through the pneumatic distributor, taken in a plane along line B-B of Figure 2, and Figure 5 is a rear elevation view of the sowing machine.
; .
.
~ ' '. ' ' 1~43173 Referring to the drawings, the sowing machine is shown to have a frame A made up of a central section 1 and side sections 2 articulated to the ends of the central section 1. A
feeding hopper 3 is mounted on the central section 1 by means of a bracket 4 and of vertical walls 5. The hopper 3 is provided with a feed valve 6 having a feeding mouth a, valve 6 being manually operated.
The flow of seeds coming from the hopper 3 is controlled , ... . . . .. . .
. ~
- .
1~43173 by means of a gearbox and valve assembly 7 mounted on an axle 8 operable by a handle 9 secured on a toothed sector 10 and working with the assistance of a latch 11.
The grains in the hopper 3 are kept in continuous motion by means of an agitator 12 and, being helped by the feeding mouth a, the grains come in contact with distributors 13 having spurs _. The distributors 13 are mounted in a casing 14 secured by screws 15 to the hopper 3.
From the distributors 13, the seeds fall freely into cones 16 leading into a vertical tube 17 and thence into a pneuma-tic distributor means comprising a fluid pressure reservoir 18 to which a series of tubes 24 are connected to be supplied with pressure fluid, as will hereinafter be more fully disclosed. The fluid pressure reservoir is secured at one end of a pressure pipe from a blower 19 operated by a power-take-off 20 of a tractor, for instance, as shown in Figures 1 and 2. The blower 19 is brought into rotation by an assembly comprising a large size pulley 21 connected to the power-take-off 20, V-belts 22 winding over pulley 21 as well as to a small size pulley 23 whlch is secured to the rotor axle of the blower 19.
Referring particularly to Figure 3, the tubes 19 leading from the cones 16 enter into the tubes 24 and create therein a restriction intended to increase the air speed flow from the reservoir 18 in the tubes 24 whereby to increase the dynamic pressure. The tubes 24, as aforesaid, lead to one of the plow-shares 25 to feed grains thereto. Each plowshare 25 is solid with a lever 26 secured to the frame A.
An arm 27 fixed to the frame A supports a wheel 28. For ~ -each plowshare, a bar 29 is articulated on the lever 26 with the upper ends thereof sliding in a part 30 secured to the frame A.
Between this part 30 and the lower end of the bar 29, there is provided a spring 31 intended to take up any oscillations of the .
.
' ' . . ' plowshares 25 when riding ov1er ~e soil.
Power for the operation of the distributors 13 is obtained from the wheels 28 by means of a sprocket wheel 32 mounted on the axle of the wheel 28, by a second sprocket wheel 34 mounted on the axle of the distributors 13 and by a chain 33 winding over the said sprocket wheels 32, 34, the assembly being such that any sliding of the wheel 28 is also sent to the dis-tributors 13.
The cylinder 18 of the pneumatic distributor means, as shown in Figure 4, has an intake air port d and fittings e having holes f of different diameters.
The levers 26 of the plowshares 25 are linked to an angle bar welded on the frame A of the sowing machine, which is made up of three sections, one of which a central section 35 whose ends are longer than the central section of the frame in order to pass over the linking point of the two short parts 36 and 37 which are welded on the side parts of the frame.
The air flow from the blower 19 branches into several jets suitable to the fittings e having some outlet holes ~ and inlets holes _ of which the diameters increases from the center to the periphery in order to provide a constant front of air speeds on the entire working width of the sowing machine.
When the machine for sowing grains is in operation, the distributors 13 take the seeds out of the feeding box 3 and let them fall freely into the cones 16. From there to the feed tubes 17, they pass into the tubes 24 of the pneumatic distributor means, being driven by the air flow and the gravity through the tubes 24 whose length increases from the centre to the periphery. The hopper 3 and the reservoir 18 of the pneumatic distributor means are so located that the peripheral tubes 24 leading to the plow-shares 25 are given an angle of approximately 9 whereby they are provided with a draining slope sufficient enough for the 1a!43173 rain water to drain to the plowshaxes 25.
The machine for sowing seeds according to the invention has the followin~ advanta~es as compared to previously used sowin~ machines. It ensures continuous operation; it permits easy exploitation, and it has a simple and solid construction.
- ' . .
- :
'
The machine of the invention is of the type comprising a frame made up of a central section at both ends of which side sections are pivoted. The central section is provided with a feeding hopper and distributors that receive the seeds from the feeding hopper and let them drop freely through a cone, there being a cone for each plowshare of the machine. From there, by 10 means of a high-speed air flow created by protuberances pro-jecting inside tubular outlet of a pneumatic distributor, the material is entrained through some fittings having several air inlet holes of which the diameters are of varying dimensions, being bigger at the center and decreasing toward the periphery.
In this manner, a constant front of material speed is produced over the whole working width of the sowing machine.
Known sowing machines have the disadvantage that when it rains, the rain water gathers in the sowing tubes which become clogged thereby reducing the working width of the machine as well as affecting seeding uniformity. Furthermore, joining the plowshares directly to the side sections of the frame leads to a complicated construction increasing the time required for folding the sowing machine from working position to transport position.
More specifically, the invention is an agricultural machine for distributing seeds or the like particulate material and comprising a frame having a bar formcd of a ccntral horizontal section and two side sections respectively pivotaIly end-connected to the ends of the central section to be displaced between a position in which the side sections are coaxial with the central section and a position in which they upstand there-from. A plurality of plowshare means are mounted on the ~k - 1 - ~
B
1~43173 sections, being spaced therealong, each plowshare means including an arm secured at one end to one of the sections and having a plowshare at the other end applicable against the earth for plowing. There is provided pneumatic distributor means including a pneumatic pressure fluid reservoir located about the central section and having a width not exceeding the central section.
This distributor means further includes fluid conveying tubes, one for each of the plowshare means. Each tube is connected at one end to the reservoir to receive pressure fluid from it and is connected at the other end to the plowshares to feed the parti-culate material thereto as the plowshares dig furrows into the earth.
In a preferred embodiment of the invention, the reservoir has fluid outlet holes therethrough to which the tubes are operatively connected, the tubes increasing in diameter from the center towards the ends of the reservoir whereby to produce substantially constant flow velocity of particulate material in the tubes.
In another preferred embodiment, the tubes are inclined downwardly from the reservoir towards the plowshares at an angle of approximately 9 whereby the particulate material may also fall by gravity.
A preferred embodiment of the invention wlll now be described having reference to the appended drawings wherein:
Figure 1 is a side elevation view of the sowing machine;
Figure 2 is a top plan view of the machine of Figure l;
Figure 3 is a cross-sectional view taken in a plane along line A-A of Figure 2;
Figure 4 is a longitudinal cross-sectional view through the pneumatic distributor, taken in a plane along line B-B of Figure 2, and Figure 5 is a rear elevation view of the sowing machine.
; .
.
~ ' '. ' ' 1~43173 Referring to the drawings, the sowing machine is shown to have a frame A made up of a central section 1 and side sections 2 articulated to the ends of the central section 1. A
feeding hopper 3 is mounted on the central section 1 by means of a bracket 4 and of vertical walls 5. The hopper 3 is provided with a feed valve 6 having a feeding mouth a, valve 6 being manually operated.
The flow of seeds coming from the hopper 3 is controlled , ... . . . .. . .
. ~
- .
1~43173 by means of a gearbox and valve assembly 7 mounted on an axle 8 operable by a handle 9 secured on a toothed sector 10 and working with the assistance of a latch 11.
The grains in the hopper 3 are kept in continuous motion by means of an agitator 12 and, being helped by the feeding mouth a, the grains come in contact with distributors 13 having spurs _. The distributors 13 are mounted in a casing 14 secured by screws 15 to the hopper 3.
From the distributors 13, the seeds fall freely into cones 16 leading into a vertical tube 17 and thence into a pneuma-tic distributor means comprising a fluid pressure reservoir 18 to which a series of tubes 24 are connected to be supplied with pressure fluid, as will hereinafter be more fully disclosed. The fluid pressure reservoir is secured at one end of a pressure pipe from a blower 19 operated by a power-take-off 20 of a tractor, for instance, as shown in Figures 1 and 2. The blower 19 is brought into rotation by an assembly comprising a large size pulley 21 connected to the power-take-off 20, V-belts 22 winding over pulley 21 as well as to a small size pulley 23 whlch is secured to the rotor axle of the blower 19.
Referring particularly to Figure 3, the tubes 19 leading from the cones 16 enter into the tubes 24 and create therein a restriction intended to increase the air speed flow from the reservoir 18 in the tubes 24 whereby to increase the dynamic pressure. The tubes 24, as aforesaid, lead to one of the plow-shares 25 to feed grains thereto. Each plowshare 25 is solid with a lever 26 secured to the frame A.
An arm 27 fixed to the frame A supports a wheel 28. For ~ -each plowshare, a bar 29 is articulated on the lever 26 with the upper ends thereof sliding in a part 30 secured to the frame A.
Between this part 30 and the lower end of the bar 29, there is provided a spring 31 intended to take up any oscillations of the .
.
' ' . . ' plowshares 25 when riding ov1er ~e soil.
Power for the operation of the distributors 13 is obtained from the wheels 28 by means of a sprocket wheel 32 mounted on the axle of the wheel 28, by a second sprocket wheel 34 mounted on the axle of the distributors 13 and by a chain 33 winding over the said sprocket wheels 32, 34, the assembly being such that any sliding of the wheel 28 is also sent to the dis-tributors 13.
The cylinder 18 of the pneumatic distributor means, as shown in Figure 4, has an intake air port d and fittings e having holes f of different diameters.
The levers 26 of the plowshares 25 are linked to an angle bar welded on the frame A of the sowing machine, which is made up of three sections, one of which a central section 35 whose ends are longer than the central section of the frame in order to pass over the linking point of the two short parts 36 and 37 which are welded on the side parts of the frame.
The air flow from the blower 19 branches into several jets suitable to the fittings e having some outlet holes ~ and inlets holes _ of which the diameters increases from the center to the periphery in order to provide a constant front of air speeds on the entire working width of the sowing machine.
When the machine for sowing grains is in operation, the distributors 13 take the seeds out of the feeding box 3 and let them fall freely into the cones 16. From there to the feed tubes 17, they pass into the tubes 24 of the pneumatic distributor means, being driven by the air flow and the gravity through the tubes 24 whose length increases from the centre to the periphery. The hopper 3 and the reservoir 18 of the pneumatic distributor means are so located that the peripheral tubes 24 leading to the plow-shares 25 are given an angle of approximately 9 whereby they are provided with a draining slope sufficient enough for the 1a!43173 rain water to drain to the plowshaxes 25.
The machine for sowing seeds according to the invention has the followin~ advanta~es as compared to previously used sowin~ machines. It ensures continuous operation; it permits easy exploitation, and it has a simple and solid construction.
- ' . .
- :
'
Claims (3)
1. Agricultural machine for distributing seeds or the like particulate material, comprising: a frame having a bar formed of a central horizontal section and two side sections, respectively pivotally end-connected to the ends of the central section to be displaceable between a position wherein said side sections are coaxial with said central section and a position wherein they upstand therefrom; a plurality of plowshare means mounted on said sections and spaced therealong; each plowshare means including an arm secured at one end to one of said sections and having a plow at the other end applicable against the earth for plowing; pneumatic distributor means including a pneumatic pressure fluid reservoir located about said central section and having a width not exceeding said central section; said pneumatic distributor means further including pressure fluid conveying tubes, one for each of said plowshare means; each tube being connected at one end to said reservoir to receive pressure fluid therefrom and being connected at the other end to one of said plowshares to feed said particulate material thereto as said plowshares dig furrows; grain distributor means mounted on said frame and adapted to discharge said particulate material into said tubes adjacent said pressure fluid to be forced by said pres-sure fluid towards said plowshares and dropped into said furrows.
2. Agricultural machine as claimed in claim 1, wherein said tubes are inclined downwardly from said source towards said plowshares at an angle of approximately 9° whereby said parti-culate material may also fall by gravity.
3. Agricultural machine as claimed in claims 1 or 2, wherein said reservoir has fluid outlet holes therethrough to which said tubes are operatively connected, said holes increasing in diameter from the center towards the ends of the reservoir whereby to produce substantially constant flow velocity of particulate material in said tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA216,887A CA1043173A (en) | 1974-12-23 | 1974-12-23 | Agricultural machine for sowing seeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA216,887A CA1043173A (en) | 1974-12-23 | 1974-12-23 | Agricultural machine for sowing seeds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1043173A true CA1043173A (en) | 1978-11-28 |
Family
ID=4101937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA216,887A Expired CA1043173A (en) | 1974-12-23 | 1974-12-23 | Agricultural machine for sowing seeds |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1043173A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493273A (en) * | 1981-11-18 | 1985-01-15 | Nodet-Gougis | Planting assembly |
| US4503786A (en) * | 1980-12-24 | 1985-03-12 | Tautfest Rexford L | Grain drill with sealed bin air-powered distribution |
| US4646941A (en) * | 1984-04-14 | 1987-03-03 | Amazonen Werke H. Dreyer Gmbh & Co. Kg | Mechanism for discharging granular material |
| WO1987003166A1 (en) * | 1985-11-25 | 1987-06-04 | Gandy Corporation | Granular applicator with interchangeable metering wheels |
| US4834004A (en) * | 1987-04-29 | 1989-05-30 | Morris Rod-Weeder Co. Ltd. | Air seeder sample collector |
| CN114161060A (en) * | 2021-12-16 | 2022-03-11 | 中山市福瑞卫浴设备有限公司 | Sweep sign indicating number automatic weld equipment |
-
1974
- 1974-12-23 CA CA216,887A patent/CA1043173A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4503786A (en) * | 1980-12-24 | 1985-03-12 | Tautfest Rexford L | Grain drill with sealed bin air-powered distribution |
| US4493273A (en) * | 1981-11-18 | 1985-01-15 | Nodet-Gougis | Planting assembly |
| US4646941A (en) * | 1984-04-14 | 1987-03-03 | Amazonen Werke H. Dreyer Gmbh & Co. Kg | Mechanism for discharging granular material |
| WO1987003166A1 (en) * | 1985-11-25 | 1987-06-04 | Gandy Corporation | Granular applicator with interchangeable metering wheels |
| US4705220A (en) * | 1985-11-25 | 1987-11-10 | Gandy Company | Granular applicator with interchangeable metering wheels |
| US4834004A (en) * | 1987-04-29 | 1989-05-30 | Morris Rod-Weeder Co. Ltd. | Air seeder sample collector |
| CN114161060A (en) * | 2021-12-16 | 2022-03-11 | 中山市福瑞卫浴设备有限公司 | Sweep sign indicating number automatic weld equipment |
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