JPH0316Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a device that adjusts the amount of fertilizer applied by appropriately changing the rotation speed of the stirring delivery shaft at the bottom of the fertilizer tank in a multi-row fertilizer applicator. be.

(Prior art) As described in Japanese Utility Model Publication No. 57-3370, the conventional fertilizer amount adjustment device in this type of multi-row fertilizer applicator is attached to the axle of the wheel of the multi-row fertilizer applicator and the bottom of the fertilizer tank. The horizontally suspended agitation and delivery shaft is directly connected by a chain transmission mechanism, and the amount of fertilizer applied is adjusted by vertically operating the adjustment plate installed between the fertilizer tank and the receiving box at the rear of the bottom of the tank to open and close the opening between them. I'm going.

(Problems to be solved by the invention) In the above-mentioned conventional fertilizer application amount adjustment device of the multi-row fertilizer applicator, if the fertilizer sticks to the stirring delivery claw due to the influence of humidity etc. depending on the type of fertilizer, ( 1) When the running speed of the machine is fast, the rotation of the agitation delivery shaft also becomes faster and the amount of fertilizer applied decreases.On the other hand, when the running speed is slow,
The rotation of the agitation and delivery shaft also slows down and the amount of fertilizer applied increases, and the amount of fertilizer applied changes depending on the running speed of the machine.

(2) As the work progresses, the amount of fertilizer applied per rotation of the stirring delivery shaft gradually decreases, resulting in a shortage of fertilizer.

There are problems with these points.

(Means for solving the problem) Therefore, this invention was developed to solve the above problem by always applying the required amount of fertilizer regardless of the type of fertilizer, its condition, etc. In the transmission mechanism from the axle 2 of the wheel 1 to the agitation and delivery shaft 4 suspended horizontally at the bottom of the fertilizer tank 3, a variable speed gear device a having exchange gears 5 and 6 that mesh with each other is interposed, and the type of fertilizer can be changed. Depending on the condition, replace the replacement gears 5, 6 with replacement gears 5a, 6a, 5b, 6b with an appropriate tooth ratio, and adjust the rotation speed of the stirring and delivery shaft 4 of the fertilizer tank 3 to an appropriate rotation speed for the running speed of the machine. Change to

(Example) The drawing shows a multi-row fertilization seeding machine according to an embodiment of this invention, 7 is a frame of the multi-row fertilization seeding machine, and a mounting frame 8 fixed on the center of the front end is attached to three points of the tractor. Attach to link hitch 9. Reference numeral 10 denotes a main shaft horizontally suspended on the front part of the frame 7.

A shows a suitable number of fertilizer applicators arranged side by side in the left and right direction on the front part of the frame 7, 3 is the fertilizer tank of the fertilizer applicator A, which is fixed on the frame 7, and a receiving box 11 is installed at the bottom rear of the fertilizer tank 3. An opening 13 is formed in a protruding partition wall 12 between them. Reference numeral 14 denotes an adjustment plate for the opening 13, which is provided so that it can be moved up and down as appropriate by operating a handle 15.

Reference numeral 4 denotes an agitation delivery shaft that passes through the lower part of all the fertilizer tanks 3 and extends horizontally, and agitation delivery claws 16 are installed radially within the fertilizer tank 3. Reference numeral 17 denotes a scraping shaft horizontally suspended in the middle of the receiving box 11.
A drum 19 having a large number of scraping pieces 18 planted on its outer periphery is installed inside the drum 1.

Reference numeral 20 denotes a fertilizing groove cutter installed below the fertilizer tank 3, which is formed by disposing disks on both sides in a V-shape that widens at the rear when viewed from above, and is rotatably supported by a shaft. Reference numeral 21 denotes a fertilizer dropping gutter which is arranged vertically with its upper opening facing the rear of the receiving box 11, and its lower end facing into the rear of the fertilizing furrow cutter 20. Reference numeral 22 denotes soil covering disks on both sides provided at the rear of the fertilizing furrow cutter 20, which are rotatable and arranged in a V-shape that expands at the front when viewed from above. Reference numeral 1 denotes a wheel rotatably supported by an axle 2 on both middle sides of the frame 7.

a shows a speed change gear device provided on the frame 7 between the one side wheel 1 and the stirring delivery shaft 4;
Reference numeral 3 denotes a transmission base plate of the speed change gear device a, which is erected on the frame 7, and has an output shaft 24 at its upper part, an intermediate shaft 25 at its middle part, and an input shaft 26 at its lower part, which are parallel to each other and protrude to both sides. Rotatably support it. Reference numerals 5 and 6 indicate replacement gears for main and sub-transmissions which are meshed with each other and are removably attached to the protrusion on one side of the output shaft 24 and the intermediate shaft 25, and the protrusion on the other side of the input shaft 26 and the intermediate shaft 25, respectively. 5a, 6
a, 5b, and 6b are replacement gears 5 and 6, respectively.
This is a replacement gear with a combination of different gear ratios.

B indicates a seeding machine installed behind each fertilizer applicator A, and 27 is the underframe of the seeding machine B. A seeding box 28 is attached to the middle part of the frame, and a seed tank 29 is mounted on the seeding box 28. Although not shown, the sowing box 28 houses a seed dispensing disk that is driven and rotated by a transmission shaft 30 horizontally suspended above the front part of the sowing box 28. Below the sowing box 28, there are disks on both sides. The sowing box 28 is equipped with a sowing furrow cutter 31 which is arranged in a V-shape that expands at the rear when viewed from above and is rotatably supported.
The lower opening of the rear seed drop gutter 32 faces into the rear of the seeding furrow cutter 31.

Reference numeral 33 denotes a connecting rod, whose front end is rotatably fitted to the main shaft 10 and its rear end to the transmission shaft 30, respectively. 3
4 is a leveling roller that is rotatably supported on the front end of the underframe 27; 35 is a soil covering metal on both sides disposed behind the seeding furrow cutter 31; 36 is rotatably supported on the rear end of the underframe 27. It is a pressure roller.

Thus, the axle 2 and the input shaft 26 of the wheel 1 on one side, the output shaft 24 and the stirring delivery shaft 4, the stirring delivery shaft 4 and each scraping shaft 17, and the axle 2 and the main shaft 10 of the wheel 1 on the other side. , the main shaft 10 and each transmission shaft 30 are connected by chain transmission mechanisms 37, 38, 39, 40, 41, respectively.

Next, its effect will be explained. Put the machine into the field, put fertilizer into tank 3, and put fertilizer into sowing box 2 from tank 29.
When the seeds are put into each of the 8 and the tractor is started and the machine is moved forward, the wheels 1 on both sides rotate on the ground, and the axle 2 of the one wheel 1 is connected to the transmission mechanism 37 and the transmission gear device a. The stirring delivery shaft 4 rotates through the input shaft 26, gears 5, 6, intermediate shaft 25, gears 6, 5, output shaft 24, and transmission mechanism 38, and the stirring delivery shaft 4 rotates through the transmission mechanism 39. The scraping shaft 17 rotates. At the same time, the main shaft 10 rotates from the axle 2 of the other side wheel 1 via the transmission mechanism 40, and the main shaft 10 rotates the transmission mechanism 41 and the transmission shaft 3.
0 to drive the feeding disk in the seeding box 28.

Therefore, the fertilizer in the tank 3 is gradually fed into the receiving box 11 from the opening 13 while being stirred by the stirring and sending claw 16 of the stirring and sending shaft 4, and the fertilizer is transferred to the scraping piece 18 of the scraping shaft 17. The fertilizer is applied by being pushed into the falling gutter 21 by the attached drum 19 and flowing from the lower end of the falling gutter 21 into the fertilizing groove made by the groove cutter 20, and then the subsequent soil covering disk is placed on the fertilized groove. 2
Cover with soil by step 2. On the other hand, the seeding machine B moves while the underframe 27 with the seeding box 28 is supported by the ground rotation of the leveling roller 34 and the pressing roller 36. Therefore, while leveling the covered soil after fertilization with the rollers 34, the seeds in the sowing box 28 are sequentially fed into the drop gutter 32 by the feeding disk, and the seeds are sent from the lower end of the fall gutter 32 into the groove. The cutter 31 runs down into the seeding trench made on the above-mentioned covering soil, and the seeds are sown.Then, the seeded trench is covered with subsequent soil covering metals 35 on both sides, and the top is compacted with rollers 36 for fertilization and seeding work. will be held.

At that time, when adjusting the amount of fertilizer applied depending on the type and condition of the fertilizer, (1) Operate the handle 15 to move the adjustment plate 14 up and down, and the opening degree of the opening 13 can be adjusted as in the conventional case. The amount of fertilizer applied is adjusted by changing the size.

(2) Replace the main transmission gears 5, 6 or the main and auxiliary transmission gears 5, 6 of the transmission gear device a with other suitable gears 5a, 6a, 5b, 6b, or 5, 6, a, 6a, 5b, 6b
When the combination gears are installed upside down and used,
Accordingly, the rotational speed of the output shaft 24 relative to the rotational speed of the input shaft 26 is changed appropriately, and the rotational speed of the stirring delivery shaft 4 and scraping shaft 17 of the fertilizer applicator A is changed relative to the running speed of the machine, thereby stirring the fertilizer. The amount of fertilizer applied is adjusted by changing the number of times of delivery and scraping.

(Effects of the invention) The fertilizer amount adjusting device in the multi-row fertilizer applicator of this invention has the following remarkable effects.

(1) A transmission base plate is erected on the frame of a multi-row fertilizer applicator, and an input shaft, an intermediate shaft, and an output shaft are mounted side by side on the transmission base plate, and the input shaft and intermediate shaft, and the intermediate shaft and output shaft are are connected by exchange gears, and the power is transmitted from the output shaft to the agitation and delivery shaft of the fertilizer tank, so by simply replacing the exchange gear at one location in the transmission, the amount of fertilizer applied by all fertilizer applicators can be equalized at the same time. It can be adjusted and is useful for work.

(2) The amount of fertilizer applied can be adjusted by appropriately changing the rotation speed of the fertilizer tank's stirring and delivery shaft in relation to the running speed of the machine. Therefore, (a) When applying fertilizer that sticks to the stirring and delivery claws, if the running speed of the machine is high, the rotation speed of the stirring and delivery shaft relative to the rotation of the wheels decreases, and on the other hand, the machine If the running speed of the machine is slow, replacing each replacement gear with an appropriate gear will increase the rotation speed of the stirring delivery shaft relative to the rotation of the wheels. Fertilizer can be applied at a predetermined amount by driving at a required rotation speed.

(b) For fertilizers that stick to the agitation and delivery claws due to humidity, etc., replace the replacement gear with an appropriate one so that the agitation and delivery shaft rotates at high speed relative to the rotation of the wheel, and then open and close the adjustment plate. It is also possible to adjust the amount of fertilizer applied as required.

(3) The transmission base plate is a single plate on which the input shaft, intermediate shaft, and output shaft are mounted side by side, and the chain transmission mechanism is connected to the protrusion on one side of the input shaft and the protrusion on the other side of the output shaft. Replacement gears are respectively attached to the protruding parts on the other side of the input shaft and the intermediate shaft, and to the protruding parts on one side of the intermediate shaft and the output shaft.

Therefore, (a) it is possible to easily engage the chain of the chain transmission mechanism, replace replacement gears, adjust the backlash, etc.

(b) Since the main and sub-stage two-stage replacement gears are replaced, the rotational speed of the output shaft can be varied in a variety of ways with a small number of combination gears, which is convenient for handling.

(4) The structure is simple, small and compact, and can be manufactured easily and inexpensively.

[Brief explanation of drawings]

Fig. 1 is a side view of a multi-row fertilizer seeding machine according to an embodiment of this invention, Fig. 2 is an enlarged rear view of its transmission gear device, and Fig. 3 is an enlarged side sectional view of the lower part of the fertilizer tank of the fertilizer application machine. FIG. 4 is a rear view of the same as above, and FIG. 5 is an explanatory side view of a replacement gear of the transmission gear device. A... Fertilizer applicator, a... Variable speed gear device, 1... Wheel, 2... Axle, 3... Fertilizer tank, 4... Stirring delivery shaft, 5, 6... Replacement gear, 7... Frame, 23...Mission base plate, 24...Output shaft,
26...Input shaft.

Claims (1)

[Scope of utility model registration request] A transmission base plate is erected on the frame of a multi-row fertilizer applicator, and an input shaft, an intermediate shaft, and an output shaft are mounted on the transmission base plate so as to be rotatable with the input shaft, intermediate shaft, and output shaft protruding to both sides, respectively, and the input shaft protrudes from one side. and the axle of the wheel of the fertilizer applicator, and the protruding part on the other side of the output shaft and the agitation delivery shaft suspended horizontally at the bottom of the fertilizer tank, respectively, are connected by a chain transmission mechanism, and the input shaft and the intermediate shaft protrude on the other side. A fertilizer application amount adjusting device for a multi-row fertilizer applicator, in which the intermediate shaft and the protrusion on one side of the output shaft are connected by removable exchange gears that mesh with each other.