JPH1175448A - Powder ejector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve disadvantage in the cost for respectively providing fans for supplying air pressure flows to respective of a fertilizer feeding pipe and a seeds feeding pipe to forcedly feeding the fertilizer and seeds in the fertilizer feeding pipe and the seeds feeding pipe by improving a structure of the pipes. SOLUTION: This powder ejector has a structure of a fertilizing and seeding machine in which a fertilizer extruded from a fertilizer is ejected from fertilizing parts through fertilizer feeding pipes 41 and seeds extruded from a seeder are ejected from seeding parts through seeds feeding pipes 75, and the fertilizer feeding pipes 41 are constructed longer than the seeds feeding pipes 75. In the powder ejector, an air pressure flow accelerating feeding of the fertilizer by the fertilizer feeding pipes 41 is sent from a fan 38 to the fertilizer feeding pipes 41 through a fertilizing air chamber 37 and an air pressure flow accelerating feeding of the seeds by the seeds feeding pipes 75 is sent to the seeds feeding pipes 75 at each downstream side of the flow of the air pressure flow in the fertilizer feeding pipes 41 through the fertilizing air chamber 37, a seeding air supplying pipe 77 and a seeding air chamber 73.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a granular material for discharging granular material such as a fertilizer for fertilizing granular fertilizer, a sowing machine for sowing in a field, or a fertilizing sowing machine for sowing while performing fertilizing work. It relates to a discharge machine.

[0002]

2. Description of the Related Art Conventionally, as an example of a granular material discharging machine, there is a fertilizer sowing machine configured to sow seeds in a field while performing a fertilizing operation, as disclosed in Japanese Patent Application Laid-Open No. 60-192505. In this fertilizer sowing machine, the fertilizer fed from the fertilizer feeding section of the fertilizer is discharged from the fertilizer section via the fertilizer transfer pipe, and the seed fed from the seed feeding section of the seeder is fed through the seed transfer pipe. It is discharged from a sowing part and fertilizes and sows on a field. The fertilizer sowing machine has a configuration in which the fertilizer transfer pipe is configured to be longer than the seed transfer pipe, and the fertilizer or the seeds are moved down by gravity in the fertilizer transfer pipe and the seed transfer pipe.

[0003]

In the above-mentioned prior art granular material discharger, the fertilizer, which is a kind of granular material, is transported down by gravity in a fertilizer transfer pipe for transporting the granular material. In the seed transfer tube for transferring the seeds, the seeds, which are a kind of powder and granules, are transferred by being lowered by gravity, so that the amount of fertilizer or seeds fed from the fertilizer feeding section or the seed feeding section increases. When the fertilizer or seeds are clogged in the fertilizer transfer tube or the seed transfer tube, proper fertilization or sowing by the fertilizer or sowing unit may not be performed. Therefore, it is conceivable to supply compressed air to the fertilizer transfer pipe and the seed transfer pipe in order to forcibly transfer the fertilizer or seeds in the fertilizer transfer pipe or the seed transfer pipe. However, since the fertilizer transfer pipe is configured to be longer than the seed transfer pipe, when a pressure wind of the same wind power is supplied to the fertilizer transfer pipe and the seed transfer pipe, the fertilizer transfer pipe configured to be longer has powder particles. Fertilizer, a type of body, is easily clogged. In addition, if a blower for supplying pressurized air is provided to each of the fertilizer transfer pipe and the seed transfer pipe, it is disadvantageous in terms of cost.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, the present invention takes the following technical measures. That is, the granular material fed from the first feeding section 35 for feeding the granular material is discharged from the first discharge ports 42 through the first transfer pipes 41, and the second feeding for feeding the granular material. The powdered material fed from the sections 71 is provided so as to be discharged from the second discharge ports 76 via the second transfer pipes 75, and the first transfer pipes 41 are provided on the second transfer pipes 75. In the powder discharger configured to be longer, pressure air that promotes the transfer of the powder by the first transfer pipes 41 and the second transfer pipes 75 is sent from the blower 38 to the first transfer pipes 41 and, respectively. So that the pressure air from the blower 38 is supplied to the first transfer pipes 41 on the upstream side of the flow of the pressurized air from the second transfer pipes 75. Thus, a powder discharger was obtained.

[0005]

According to the present invention, by operating the first feeding section, the second feeding section and the blower, the pressurized air from the blower is supplied to the first transfer pipe. The fed-out granular material is transferred to the first discharge port by the first transfer pipe and discharged. Further, the pressure air from the blower is supplied to the second transfer pipe, and the powder and granular material fed from the second feed section is transferred to the second discharge port by the second transfer pipe and discharged.
Further, since the pressurized air from the blower is supplied to the first transfer pipe on the upstream side of the flow of the pressurized air from the second transfer pipe, the first transfer pipe is supplied from the wind force of the pressurized wind supplied to the second transfer pipe. The wind force of the pressurized wind supplied to is increased.

[0006]

As described above, since the pressure wind supplied to the first transfer pipe is larger than the pressure wind supplied to the second transfer pipe, the granular material is configured to be longer than the second transfer pipe. It is possible to prevent the first transfer pipe from being clogged with powder and granules, and a suitable wind power for transferring the powder to each of the first transfer pipe and the second transfer pipe having different lengths. Pressure air can be supplied.

[0007]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a fertilizer / seeding machine 2 in which a fertilizer / fertilizer 1 for fertilizing granular fertilizer is mounted on a sowing machine for sowing seeds, which are a kind of powdered material, directly in a field such as a paddy field. The fertilizer sowing machine 2 mainly includes a traveling vehicle body 3, a fertilizer applicator 1 and a sowing apparatus 4 for six rows.

An engine 5 as a drive source is provided at substantially the center of the traveling body 3 in the front, rear, left and right directions. A relay shaft 8 that rotates integrally with a dual pulley 7 via an engine output belt 6 by the power from the engine 5 is provided. Drive. A hydraulic pump 9 is provided on the relay shaft 8, and the hydraulic pump 9 is driven as the engine 5 is driven. Also,
An input shaft 1 of a main transmission case 11 from a drive pulley 7a on the other side of the twin pulley 7 via a transmission belt 10.
By driving the driven pulley 12 that rotates integrally with 1a, power is transmitted into the main transmission case. The drive pulley 7a and the driven pulley 12 are constituted by split pulleys, and the drive pulley 7a, the driven pulley 12 and the transmission belt 10 are connected to these pulleys.
Change the split width of the rims 7a and 12 to change the main mission case 1
Continuously variable transmission 13 for continuously changing the transmission ratio of the transmission into gear 1
It has become. The left and right front wheels 1 are driven by the front wheel drive shafts 14a, 14a protruding from the left and right ends of the main transmission case 11 by the power in the main transmission case 11.
The drive wheels 4 and 14 are driven to rotate, and are transmitted from the main transmission case 11 through the left and right rear wheel transmission shafts 15 and 15 into the left and right rear wheel transmission cases 16 and 16, respectively. The right and left rear wheels 17, 17 are driven by the driving of rear wheel drive shafts 17a, 17a provided on the wheels 16, 16, respectively. Therefore, the traveling vehicle body 3 is configured such that the front wheels 14, 14 and the rear wheels 17, 17 are driven to travel.
Further, the power from the main transmission case 11 is transmitted to the seeding device 4 by a seeding transmission shaft 18 provided so as to pass rightward of the engine 5. A clutch case 19 is provided in the middle of the seeding transmission shaft 18, and the power taken out by the clutch case 19 is transmitted to the fertilizer application device 1. A clutch (not shown) for turning on and off the drive of the seeding device 4 and the fertilizer application device 1 is provided in the clutch case.

In addition, the traveling body 3 is provided with a cockpit 20 above the engine 5 and a steering handle 21 in front of the cockpit 20. On the right side of the steering handle 21, there is provided an auxiliary speed change lever 22 for performing a speed change operation of the continuously variable transmission 13.
A main transmission lever 23 is provided on the left side of the steering handle 21. The operation of the main transmission lever 23 switches the meshing of the gears in the main transmission case 11 to reduce the vehicle speed of the vehicle body to "road traveling speed". , "Seeding operation speed" and "reverse speed". A main clutch pedal 24 is provided on the lower left side of the steering handle 21. By depressing the main clutch pedal 24, a main clutch (not shown) in the main transmission case 11 is operated and the traveling wheels 14, 14, 17,
17, power to the seeding device 4 and the fertilizer application device 1 is cut off. On the right side of the cockpit 20, the clutch case is provided.
A sowing / elevating lever 25 capable of turning on and off the transmission to the seeding device 4 and the fertilizer application device 1 by operating a clutch in the seedling is provided.

An elevating link mechanism 26 is pivotally supported at the rear of the traveling vehicle body 3. This lifting link mechanism 2
Reference numeral 6 includes one upper link 26a and two lower links 26b, 26b arranged so as to sandwich the upper link 26a in the horizontal direction in plan view. The seeding device 4 includes a vertical link 2 provided at a rear end of the lifting link mechanism 26.
It is configured to be mounted on the rear side of the traveling vehicle body 3 via 6c. The seeding device 4 is provided so as to move up and down by the vertical movement of the lifting / lowering link mechanism 26 due to expansion and contraction of a hydraulic lifting / lowering cylinder 27 operated by hydraulic pressure from the hydraulic pump 9. The sowing / elevating lever-2
By the operation of 5, the raising / lowering link mechanism 26 is rotated so that the seeding device can be raised and lowered.

The seeding device 4 is configured to operate by transmitting power from a seed transmission unit 30 to which power from the clutch case 19 is input. A center float 31 is provided at the center and side floats 32 are provided at both sides of the lower part of the sowing apparatus 4, so that the field scene is slid during the sowing operation. The float 31,
The reference numerals 32, 32 are rotatably supported around left and right rotation shafts 33, 33, 33, and are provided so as to be able to change the front-back inclination posture. When the seeding device 4 is lowered by the sowing / elevating lever 25 to perform the seeding operation by the seeding device 4, the floats 31, 32, 32 are brought into contact with the field scene, and the traveling vehicle body 3 is moved. The seeding device 4 and the floats 31, 32, 32 are controlled to move up and down by rotating the lifting link mechanism 26 so that the front and rear inclination posture of the float 31 becomes a predetermined inclination posture.

The fertilizer applicator 4 includes a fertilizer hopper 34 for storing granular fertilizer, a fertilizer feeding section 35 of each strip for feeding a predetermined amount of fertilizer in the fertilizer hopper 34, and a fertilizer feeding section 35 for feeding fertilizer from the fertilizer feeding section 35. Guide tube 36 of each section for guiding transfer
, A fertilizing air chamber 37 for supplying pressurized air to the guide tubes 36, and a blower 38 for supplying pressurized air to the fertilized air chamber 37. Further, the blower 38 is configured to be driven using a battery 39 disposed at a front portion of the traveling vehicle body 3 as a drive source. The fertilizer applicator 4 drops and supplies the fertilizer fed from the fertilizer feeding sections 35 to the guide tubes 36 through the fertilizer outlets 40. The fertilizer is transferred to the fertilizer application sections 42 provided at the end of the fertilizer transfer pipes via the fertilizer transfer pipes 41 of each row, and the fertilizer for six rows is applied to the field.
The fertilizer transfer pipes 41 are constituted by flexible tubes.

The fertilizer application air chamber 37 is formed in a tubular shape that is long in the left-right direction, and is provided in front of the fertilizer feeding sections 35. The blower 38 is attached to the left end of the fertilization air chamber 37, and a discharge port 38a of the blower 38 is provided at the left end of the fertilization air chamber 37. Note that the right end of the fertilizer application air chamber 37 is closed. Further, at the rear of the fertilizer application air chamber 37, there are provided outlets 37a for supplying pressurized air to the guide pipes 36 of each row, and the guide pipes 36 are provided at the outlets 37a.
… Is attached. Also, fertilizer air chamber-3
An outlet 37 b for supplying pressurized air to the seeding device 4 is provided at the left and right center of the rear of 7.

The fertilizer application section 42 is provided with a groove generator 43. The groove generator 43 is provided with the fertilizer transfer pipe 41.
And a boot 44, which is connected by a boot
, 31, 32, 32. A groove forming protrusion 43a is provided on the front side of the groove forming device 43, and the groove forming protrusion 43a presses and separates the mud in the field in the left and right direction and the downward direction along with the forward movement of the machine body to form a groove. Inside, fertilizer is supplied by pressurized air from the fertilization air chamber-37. A soil covering plate 45 is provided at the rear of the groove generator 43, and the soil covering plate 45 fills the groove formed by the groove generator 43 with the advance of the fuselage and covers soil with fertilizer applied to the field. It has become. The earth cover plate 45 is attached to the floats 31, 32, 32, respectively.

The feeder case 35a and the guide pipes 36 constituting the fertilizer feeder sections 35 of the respective sections are fixed to the mounting base welded to the fertilizer application air chamber 37 by bolts. . The fertilizer hopper 34 is mounted on the feeder case 35a. The fertilizing air chamber 37 is attached to the vertical frames 46 at the rear of the traveling vehicle body 3. Therefore, the fertilizer feeding sections 35 are arranged at the rear of the traveling vehicle body 3.

The drive structure of the fertilizer feeding sections 35 will be described. The fertilizer drive rod 49 connected to a fertilizer drive arm (not shown) that is driven to rotate by driving from the clutch case 19 moves up and down. Thus, the fertilizer feeding drive arm 50 is driven, and the fertilizer drive shaft 51 is driven.
A one-way clutch 52 is provided between the fertilizer drive shaft 51 and the fertilizer feeding drive arm 50, and the fertilizer drive shaft 51 moves in a fixed direction (FIG. It is designed to rotate counterclockwise when viewed. The fertilizer drive shaft 51 is provided with two drive pulleys 53, 53, 53 that can rotate integrally with the drive shaft 51. A driven pulley 57 driven by transmission of belts 56, 56, 56 via idle pulleys 55, 55, 55 which idle from the pulleys 53, 53, 53 with respect to an opening adjustment shaft 54. , 57, 57 are driven integrally with each other, and the feed rollers 59 are driven and rotated by driving the feed shafts 58.

Next, the configuration of the feeding section 35 will be described. On the outer peripheral surface of the feeding roller 59 of the feeding section 35, feeding grooves 60 are provided at every fixed angle in the rotation direction, and fertilizers dropped and supplied from the hopper 34 are stored in the feeding grooves 60. By rotating the roller 59, the fertilizer is fed to the feeding port 40. In addition, the feeding section 35
A brush 61 is provided on the front side of the feeding roller 59 so as to come into contact with the outer peripheral surface of the roller, so that the fertilizer overflowing from the feeding grooves 60 is scraped off. In addition, the driven pump
A gear 63 is provided that moves in the direction of the rotation axis by rotating with respect to a gear rotation shaft 62 that is fitted to a feeding shaft 58 that rotates integrally with the rim 57. It meshes with the gear 64. Adjusting wheel 65 provided on gear 63
A plurality of protrusions 66 projecting from the
Are movable in the direction of the feed groove 60 by the rotation of the gear 63, thereby changing the effective length of the feed groove 60 and adjusting the feed amount of the fertilizer. Therefore, the feed amount is adjusted by rotating the opening adjustment shaft 54 with an opening adjustment handle 67 provided at the right end of the opening adjustment shaft 54 to rotate the small gears 64. Has become.
At the right end of the fertilizer application air chamber 37, a locking member 68 for locking the opening adjustment handle 67 is provided, and by locking the opening adjustment handle 67 to the locking member 68, the feeding shaft 5 is moved.
8, the opening adjustment shaft 54 is prevented from rotating, so that the amount of fertilizer fed out does not change during the operation.

The seeding device 4 includes a seed hopper 70 for storing seeds, a seed feeding section 71 for feeding each seed in the seed hopper 70 by a predetermined amount, and transfer of seeds fed from the seed feeding section 71. A guide tube 72 for each strip to be guided, and a seeding air chamber 7 for supplying a pressurized air to the guide tubes 72.
3 is provided. The seeding device 4 includes a fertilizer application device 1
In the same manner as described above, seeds fed from the seed feeding sections 71 are dropped and supplied to the guide pipes 72 through seed feeding ports 74, and the guide pipes 72 and each row are fed by pressure air from a seeding air chamber 73. The seeds are transferred to the seeding sections 76 of each row provided at the end of the seed transfer pipes 75 through the seed transfer pipes 75 so that the seeding for six rows is performed in the field. The seed transfer tubes 75 are formed of a flexible tube.

The seeding air chamber 73 is formed in a tubular shape that is long in the left-right direction similarly to the fertilizing air chamber 37, and is provided in front of the seed feeding portions 71 of each strip.
The left and right ends of the seeding air chamber 73 are closed. At the rear of the seeding air chamber 73, there are provided outlets 73a for supplying pressurized air to the guide pipes 72 of the respective strips.
The guide tubes 72 are attached to. Further, a suction port 73 for supplying pressurized air to the seeding air chamber 73 is provided in the center of the front of the seeding air chamber 73 in the left and right direction.
b is provided. A seeding air supply pipe 77 extending forward is attached to the suction port 73b, and the other end of the seeding air supply pipe 77 is attached to a left and right center outlet 37b at the rear of the fertilizing air chamber 37. Therefore, the pressure air in the fertilization air chamber 37 is supplied to the seeding air chamber 73 through the seeding air supply pipe 77. That is, the configuration is such that the pressure air from the blower 38 is supplied to the fertilizer transfer pipes 41 on the upstream side of the flow of the pressurized air from the seed transfer pipes 75. still,
The seeding air supply pipe 77 is formed of a flexible tube, and follows the vertical movement of the seeding air chamber 73 of the seeding device 4 with respect to the traveling vehicle body 3 by the operation of the lifting link mechanism 26.

The seeding section 76 includes a groove generator 78. The groove generator 78 is connected to the seed transfer pipe 75 by the boots 44 in the same manner as the fertilizer application section 42 of the fertilizer applicator 1 and is attached to floats 31, 32, 32 that slide in a field scene. On the front side of the groove generator 78, a groove projection 78a is provided. A soil covering plate 79 for covering the groove formed by the groove generator 78 is provided at the rear of the groove generator 78. The earth cover plate 79 is made of a rubber plate. The mounting holes 79a of the earth cover plate 79 are inserted into mounting pins 78b provided in the groove generator 78, and are attached to the groove generator 78. It has become.

The cover soil plate 79 has wide end portions 79b, 79b having different thicknesses.
b, 79b and the central portion 79c, respectively.
a, 79a, 79a are provided. When attaching the earth covering plate 79 to the groove generator 78, the both ends 79
b and 79b, a part of the earth covering plate 79 is folded so that the mounting hole 79a provided in one of the mounting holes 78a and the mounting hole 79a of the central portion 79c are inserted into the same mounting pin 78b of the groove generator 78. Attach it in the state. Accordingly, the other of the two end portions 79b, 79b of the earth covering plate 79 is grounded on the field to cover the earth. Then, in a state in which one of the mounting holes 79a of the both ends 79b, 79b inserted into the mounting pin 78b is removed from the mounting pin 78b, the covering earth plate 79 is mounted around the mounting hole 79a of the central portion 79c.
Is rotated by 180 degrees around the mounting pin 78b, and the other mounting hole 79a can be inserted into the mounting pin 78b. Thus, by changing the thickness of the portion of the earth covering plate 79 that contacts the field, the earth covering pressure exerted on the soil by the earth covering plate 79 is adjusted, and the mounting pin 78 of the mounting hole 79a is adjusted.
By adjusting the soil covering amount of the seeds sown by a simple method by attaching and detaching the seeds to and from the b, the seeding depth can be set to an appropriate sowing regardless of the hardness of the soil.

The seeding air chamber 73 includes the seeding transmission unit 3.
No. 0 seeding transmission case 30a is attached to left and right seeding device support frames 80, 80 which are fixed to the rear end of the case by bolts. A feeding part case 71a and a guide tube 72, which constitute a seed feeding part 71 of each strip, are mounted and fixed to a mounting base welded to the seeding air chamber 73 by bolts. In addition, the seed hopper 70
Are attached to the feeder case 71a. Therefore, the seed dispensing sections 71.
Is arranged at the rear.

The driving structure of the seed feeding units 71 will be described. A seed driving arm 81 that is rotated by driving a drive shaft 30b provided at the rear end of the seed transmission unit 30 is provided.
The seeding drive rod 82 connected to the arm moves up and down, so that the seeding feed drive arm 83 is driven and the seeding drive shaft 84
Is driven. A one-way clutch 52 is provided between the seeding drive shaft 84 and the seeding feeding drive arm 83, and the seeding drive shaft 84 moves in a certain direction (FIG. 4) as the seeding drive rod 82 moves upward. It is designed to rotate counterclockwise when viewed. The seeding drive shaft 84 is provided with two drive pulleys 53, 53, 53 that can rotate integrally with the drive shaft 84.
Is provided. Idle pulleys 55, 5 that idle from the pulleys 53, 53, 53 with respect to the opening adjustment shaft 54.
The driven pulleys 57, 57, 57, which are driven by the transmission of the belts 56, 56, 56 via the transmission shafts 5, 55, are driven in pairs. The driving rollers 59 are driven and rotated by driving.

The structure of the seed feeding section 71 of the sowing apparatus 1 is the same as that of the fertilizer feeding section 35 of the fertilizing apparatus 4, and the description is omitted. Incidentally, the fertilizer application section 42 of the fertilizer application apparatus 1 is arranged so as to be different from the seeder section 76 of the seed application apparatus 4 by a predetermined amount in the left-right direction of the machine body. Therefore, this fertilizer sowing machine 2 makes the traveling vehicle body 3 travel in the field to perform sowing for 6 rows by the sowing device 4, and the fertilizing device 1 at a predetermined position beside the sowing position of the sowing device 4. It is configured to apply 6 fertilizers.

The seeding transmission case 30a of the seeding device 4
The frame portion 85 fixed to the frame clutch levers 86, 8 capable of turning on and off the operation of fertilization and sowing every two lines.
6,86 are provided. That is, by operating the strip clutch levers 86, 86, 86, the feeding operation of the fertilizer feeding sections 35 of the fertilizer applicator 1 and the seed feeding sections 71 of the sowing apparatus 4 can be switched on and off for each two rows. Has become. Therefore, when fertilization and sowing are not performed simultaneously for 6 rows due to the size of the field, etc., the fertilizer feeding section 35 and the seed feeding are operated by operating the row clutch levers 86, 86, 86 every two rows as necessary. The operation of the feeding of the parts 71... Can be stopped.

Further, the fertilizer sowing machine 2 includes a fertilizer hopper 3 of the fertilizer applicator 1 for storing granular fertilizer heavier than seeds.
4 is arranged closer to the center of the fuselage in the longitudinal direction of the fuselage than the seed hopper 70 of the seeding device 4 to improve the balance of the fuselage longitudinally. In addition, a fertilizer hopper 34 that stores more granular fertilizer than the seed is provided in the traveling vehicle body,
Fertilizer hopper 34 that needs more replenishment than seed hopper 70
The fertilizer can be supplied from the traveling vehicle body 3 to facilitate the supply of fertilizer. The seed hopper 70 is integrally formed, and the operation of replenishing seeds to the seed hopper 70 by approaching the rear part of the body to the ridge in the field can be performed at a time for six lines.

As described above, the fertilizer sowing machine 2 allows the fertilizer feeding section 35 of the fertilizer applicator 1 to move while the traveling vehicle body 3 is running.
By operating the seed feeding section 71 of the sowing device 4 and the blower 38, the blower 3 located on the front side of the fertilizer feeding port 40 of the fertilizer feeding section 35 provided at the rear of the traveling vehicle body 3
8 pressurized air from the discharge port 38a is applied to the fertilizing air chamber-3.
The fertilizer is supplied to the fertilizer transfer pipes 41 through an air duct formed by the fertilizer 7, and is fed from the fertilizer delivery sections 35 through the fertilizer transfer pipes 41.
The fertilizers are transferred to fertilizer application units 42 provided in the fertilizers 31, 32, 32 and fertilize the fields. Further, the compressed air from the discharge port 38a of the blower 38 is supplied to the rear of the traveling vehicle body 3 through a seed transfer air duct configured by the fertilizing air chamber 37, the seeding air supply pipe 77, and the seeding air chamber 73. Is supplied to the seed transfer pipes 75 provided in the
The seeds unwound from 1... Are transferred by the seed transfer pipes 75 to the sowing units 76 provided behind the traveling vehicle body 3 and are sown in the field.

Therefore, since the discharge port 38a of the blower 38 is located on the front side of the fertilizer feeding ports 40 of the fertilizer feeding sections 35,.
In transferring the fertilizer from the fertilizer feeding section 35 to the fertilizer application section 42 provided on the floats 31, 32, 32 behind the traveling vehicle body 3, it is longer than the seed transfer pipe 75 and in the front-rear direction. Fertilizer transfer pipe 41 provided to transfer
Are supplied from the outlet 38a of the blower 38 through the fertilizing air chamber 37.

The seed blower 38 is connected to the seed transfer pipes 75.
Is supplied via the fertilizing air chamber 37, the seeding air supply pipe 77, and the seeding air chamber 73 from the discharge port 38a of the seeding air supply pipe 77 and the seeding air chamber.
Due to the pipeline resistance of 73, the pressure wind of the seed transfer pipes 75 becomes smaller than that of the fertilizer transfer pipes 41. Also, the seeding air supply pipe 77 is bent into various shapes as the seeding air chamber 73 moves up and down with respect to the fertilization air chamber 37 by the operation of the elevating link mechanism 26, so that the seeding air supply pipe 77 is bent. And the wind force of the pressurized air in the seed transfer pipes 75 changes and becomes unstable. However, the seed transfer pipes 75 are moved from the seed feeding portions 71 provided behind the traveling vehicle body 3 to the floats 31, 3.
When transferring the seeds to the sowing units 76 provided in the second and 32th sections, the seeds can be transferred even with a pressure wind of a small wind force, which is shorter than the fertilizer transfer pipes 41 and has less transfer in the front-rear direction. Therefore, compared with the seed transfer pipes 75, a stable and large pressure wind is supplied to the fertilizer transfer pipes 41,
Appropriate wind pressure for transferring the granular material can be supplied to each of the fertilizer transfer pipes 41 and the seed transfer pipes 75.
Therefore, the pressure wind of the fertilizer transfer pipes 41 is too small and the fertilizer transfer pipes 41 are clogged with fertilizer or the seed transfer pipes 7
5 is too small, the seeds are clogged in the seed transfer pipes 75..., Or the pressure wind of the fertilizer transfer pipes 41 is too large, and the fertilizer is applied by the pressure wind of the fertilizer transfer pipes 41. The fertilizer discharged from the sections 42 is too buried in the soil to increase the fertilization depth or the pressure wind of the seed transfer pipes 75 is too large, and the seeding sections 76 are generated by the pressure wind of the seed transfer pipes 75. The seeds discharged from the soil are not so buried in the soil that the seeding depth becomes deep, and the fertilizing work and the seeding work can be performed appropriately.

As described above, the fertilizer / seeder 2 rationally supplies the pressurized air from the single blower 38 to the fertilizer transfer pipes 41 and the seed transfer pipes 75 whose inlets of the pressurized air are separated from each other back and forth. be able to. In the embodiment of the invention shown in FIG. 11, discharge ports 38a, 38a are provided on the left and right sides of the blower 38, and pressurized air is supplied from the discharge ports 38a, 38a to the fertilizing air chamber 37 and the seeding air chamber 73. It is like that. The seeding air chamber
The supply of the pressurized air to the fertilizer transfer pipe 41 is performed via a seeding air supply pipe 77 composed of a flexible tube.
The configuration is such that it is smaller than the wind pressure of the pressure wind.

In the fertilizer sowing machine 2 shown in FIG. 12, the seed hopper 70 of the sowing apparatus 4 is moved via a forward / backward moving rail 88 attached to a frame portion 87 fixed to the seeding transmission case 30a. And the hopper 70 is connected to the seed feeding sections 71 of each row by a seed supply pipe 89 composed of a flexible tube. The fertilizer sowing machine 2 moves the seed hopper 70 to the front-rear
The seed hopper 70 is moved forward and backward along
Immediately after the fertilizer hopper 34 of the fertilizer applicator 1 and the seed feeding portion 71
... and the rear of the fuselage above it. Therefore, when it is desired to supply seeds to the seed hopper 70 from the traveling vehicle body side, the seed hopper 70 is disposed immediately after the fertilizer hopper 34 of the fertilizer applicator 1, and the rear part of the body is brought close to the ridge in the field, and the seed hopper 70 When it is desired to replenish the seeds 70, the seed hopper 70 is arranged at the rear of the machine body above the seed feeding sections 71. When the seed hopper 70 is disposed immediately after the fertilizer hopper 34, the seed hopper 70 is configured to protrude slightly upward from the fertilizer hopper 34. The task of replenishing seeds is facilitated.

Although the embodiment of the present invention has been described in detail with respect to the fertilizer sowing machine, the present invention is not limited to the fertilizer sowing machine.

[Brief description of the drawings]

FIG. 1 is a side view of a fertilizer seeder.

FIG. 2 is a plan view of a fertilizer seeder.

FIG. 3 is a rear view of the fertilizer application device (seeding device).

FIG. 4 is a side sectional view showing a part of a fertilizer (seeding apparatus).

FIG. 5 is a rear sectional view showing a fertilizer feeding section (seed feeding section).

FIG. 6 is a partial cross-sectional side view showing a fertilizer application part.

FIG. 7 is a partial cross-sectional side view showing a seeding part.

FIG. 8 is a plan view of a covering soil plate of a seeding part.

FIG. 9 is a side cross-sectional view of a covering plate of a seeding part.

FIG. 10 is a plan view showing a supply path of pressurized air from a blower.

FIG. 11 is a plan view showing a supply path of pressurized air from another blower.

FIG. 12 is a side view of another fertilizer seeder.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Fertilizer application apparatus, 2 ... Fertilizer seeding machine, 3 ... Running body, 4 ... Seeding apparatus, 35 ... Fertilizer feeding part (first feeding part), 37 ... Fertilizer application air chamber, 38 ... Blower, 38a ... Discharge port, 40
... fertilizer transfer outlet, 41 ... fertilizer transfer pipe (first transfer pipe), 42
... fertilizer application section (first discharge port), 71 ... seed feeding section (second feeding section), 73 ... seeding air chamber, 75 ... seed transfer pipe (second transfer pipe), 76 ... seeding section (second discharge port) ), 77 ...
Seeding air supply pipe

Claims (1)

[Claims] 1. A powdered material fed from a first feeding section (35) for feeding out a powdery material is discharged from a first discharge port (42) through a first transfer pipe (41) and fed out. The powder and the granular material fed from the second feeding sections 71.
5 are provided so as to be discharged from the second discharge ports 76 through the first transfer pipes 41 and the second transfer pipes 75.
In the powder discharger configured to be longer, pressure air that promotes the transfer of the powder by the first transfer pipes 41 and the second transfer pipes 75 is sent from the blower 38 to the first transfer pipes 41 and, respectively. Are supplied to the second transfer pipes 75, and the pressure air from the blower 38 is supplied to the second transfer pipes 75.
... A powder and granular material discharger characterized by being supplied to the first transfer pipes 41 on the more upstream side of the flow of compressed air.