JPH0847363A - Spreader feeding mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] It is not necessary to change the rotation speed of the feeding roll in a wide range, so it is not necessary to extremely reduce the rotation speed of the feeding roll even with a small amount of spray such as a herbicide. (EN) Provided is a payout mechanism of a spreader capable of achieving high spraying performance without causing a uniform spraying. [Structure] Three different conventional feeding rolls 7 to 9 are rotatably arranged side by side on a roll shaft 5, and a clutch A1 is used.
By turning on and off 1, B13, the respective feeding rolls 7 to 9 are rotated by the roll shaft 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding mechanism of a spreader for spraying granular pesticides, granular fertilizers, seeds and the like.

[0002]

2. Description of the Related Art When spraying granular pesticides, granular fertilizers, seeds, etc., a general spray amount per 10 ares is 1 to 5 kg for granular pesticides and 5 to 50 kg for granular fertilizers (for paddy rice). Because of the difference, in the conventional roll-type feeding mechanism, it is necessary to change the rotation speed of the feeding roll within a wide range. For example, if 1 kg of herbicide per 10 ares and 50 kg of fertilizer per 10 ares are sprayed and the feeding rolls of the feeding mechanism are the same (volume of feeding amount), if the temporary specific gravity is the same, Ratio of fertilizer 50 (1: 5
The rotation speed of the feeding roll must be changed in 0). Actually, it may be a larger ratio. In the conventional roll-type feeding mechanism, the feeding amount in this wide range (1 to 50 times) is dealt with by changing the rotation speed of the roll shaft of the feeding roll or exchanging the feeding roll. There is also a feeding mechanism that changes the roll width by changing the groove width of the roll.
Such a method is not suitable for feeding granular pesticides having a small particle size.

[0003]

In the conventional feeding mechanism of the spreader, since the rotation number of the roll shaft is changed to cope with the above-mentioned wide range of the feeding amount, the characteristics of the motor for driving the roll shaft can be improved. The torque at the time of low speed rotation decreases,
There is a problem that the pay-out roll may not be able to be fully rotated, and if it is used in a state in which the number of revolutions is low, the pay-out unevenness increases, such as intermittent feeding. Further, the method of replacing the pay-out rolls to cope with a wide range of pay-out amount has a problem that it takes time to replace the rolls.

The present invention has been made in order to solve the above problems, and when a large amount of spray (for example, fertilizer) is used, a pay-out roll having a large pay-out amount is used, and when a small amount is sprayed like a herbicide, it is used. By using a feeding roll with a small feeding amount, for example, if the ratio of the feeding amount per rotation of the feeding roll with a large feeding amount for fertilizer and the feeding roll with a small feeding amount for herbicide is 50: 1, Since the same number of rotations of the feeding roll can be used for both spraying of the herbicide and the herbicide, it is not necessary to change the number of rotations of the feeding roll in a wide range as in the conventional case. There is no need to reduce the rotation speed of the rolls, and there is no intermittent spraying.
As described above, the present invention has an object to obtain a payout mechanism of a spreader capable of obtaining high spraying performance.

[0005]

A delivery mechanism of a spreader according to the present invention has a plurality of delivery rolls having different delivery amounts, and the delivery rolls can be selectively used depending on the difference in the delivery amount. Further, a partition plate is loosely fitted between the respective delivery rolls.

[0006]

In the present invention, a feeding roll having a large feeding amount can be used in the case of a large amount of sprinkling such as fertilizer, and a feeding roll having a small feeding amount can be used in the case of a small amount of spreading such as a herbicide. The range of rotation speed of the roll shaft is greatly reduced, and even when the herbicide is sprayed, the rotation speed does not become extremely low and intermittent spraying does not occur. Further, the partition plate between the respective feeding rolls makes the feeding amount of the respective feeding rolls accurate, and the friction resistance between the respective feeding rolls is reduced due to the interposition of different materials.

[0007]

【Example】

Example 1. An embodiment of the present invention will be described with reference to FIGS. 1 is an axial sectional view, and FIG. 2 is a line II- in FIG.
II is a sectional view, and FIG. 3 is a sectional view taken along the line III-III in FIG. In the figure, 1 is a tank, 2 is a drop port 1 of the tank 1.
It is a case connected to a and has side lids 3 on the left and right.
Reference numeral 4 denotes a spray passage continuously provided to the delivery port 2a of the case 2 and is blown in the direction of the arrow. Reference numeral 5 denotes a roll shaft which is axially slidably and rotatably inserted into both side lids 3, and is a motor M.
It is driven to rotate by 1. 6 is a fork guide for sliding the roll shaft 5, 7 and 8 and 9 are three feeding rolls which are rotatably arranged side by side on the roll shaft 5 and have different feeding amounts. The feeding roll 7 has a large feeding amount. The feeding roll 8 has a shorter axial length than the feeding roll 7 to reduce the feeding amount, and the feeding roll 9 is significantly different in shape from the two feeding rolls 7 and 8 to make the feeding amount small. Reference numeral 10 denotes a clutch pawl formed to face the feeding rolls 7 and 8, and 11
Is a claw clutch A fixed to the outer circumference of the roll shaft 5, 12 is a clutch claw provided on the side surface of the feeding roll 9, and 13 is a side in a state of being rotated together with the roll shaft 5 and axially slidably mounted at its end. Clutch B rotatably supported by the lid 3
Thus, it has a clutch pawl 13a facing the clutch pawl 12. Reference numeral 14 is a fork guide for sliding the clutch B13, and 15 is a partition plate which is loosely fitted between the feeding rolls 7, 8, 9 and has a ring shape.

Next, the operation will be described. In the state shown in FIG. 1, since both the clutch A11 and the clutch B13 are disengaged, even when the roll shaft 5 is rotated by the motor M1, the respective feeding rolls 7, 8, 9 do not rotate.

When the fertilizer is sprayed, the fertilizer is put in the tank 1 and the roll shaft 5 is slid rightward by the fork guide 6 to engage the clutch A11 with the clutch claw 10 of the feeding roll 7. In this way, when the roll shaft 5 is rotated by the motor M1, the feeding roll 7
Only rotates together with the roll shaft 5 via the clutch A11 to feed the fertilizer along the feeding amount of the feeding roll 7.

Next, when it is desired to further reduce the amount of spray per 10 ares, the clutch A11 may be slid to the left, contrary to the above, so that only the feeding roll 8 rotates with the roll shaft 5.

Further, when a small amount is sprayed like a herbicide, the clutch B13 is slid to the right by the fork guide 14 and the clutch pawl 13a is meshed with the clutch pawl 12 of the pay-out roll 9. Rotates with the roll shaft 5, so a small amount of herbicide can be sprayed.

Now, the delivery amount (volume) of the delivery rolls 7 and 9
If the ratio is set to 1:50, the fertilizer is fed by the feeding roll 7 and the herbicide is fed by the feeding roll 9, and then 50 kg per 10 are and a fertilizer with a large feeding amount is sprayed. At the same time, the same number of rotations of the roll shaft 5 can be used for spraying a herbicide with a small amount of 1 kg per 10 ares. That is, as in the conventional case, the ratio of the feeding amounts of the two feeding rolls 7 and 9 is the same as it is.
The ratio of the rotational speed of the roll shaft 5 is not the ratio, and the range of the rotational speed of the roll shaft 5 is significantly reduced. Therefore, even when the herbicide is sprayed, the rotation speed is extremely low and the spraying is not intermittent unlike the conventional case.

In the above description, the case where the three feeding rolls 7 to 9 are used one by one has been described, but two feeding rolls 7 to 9 by combining both clutches A11 and B13.
It is also possible to recompose and use, and it is possible to widely adjust the amount of feed.

As shown in the above embodiment, the respective feeding rolls 7-
When the partition plate 15 is loosely fitted between 9 and 9 respectively, the respective feeding rolls 7 to 9 are partitioned, so that the respective feeding amounts of the respective feeding rolls 7 to 9 are accurate and the rotation of the respective feeding rolls 7 to 9 is performed. At times, the partition plate 15 made of a different material is interposed, so that the frictional resistance is reduced.

Example 2. In the first embodiment, the three feeding rolls 7 to 9 are driven by the one motor M1. However, by driving the clutch B13 by another motor 16 as shown in FIG. , 8 and the feed amount of the feed roll 9 can be selectively changed. In this case, the clutch B13 is rotatably mounted on the roll shaft 5.

Embodiment 3. In Examples 1 and 2 described above, three delivery rolls 7 to 9 are provided, and the delivery amount is switched in multiple stages by switching with two clutches A11 and B13. However, as shown in FIG. The feeding rolls 7 and 8 may be switched in two stages by the clutch A11.

[0017]

As described above, according to the present invention, a feeding roll having a large feeding amount is used when a large amount is applied (for example, fertilizer), and a small feeding amount is used when a small amount is applied like a herbicide. By using a feeding roll, for example, if the ratio of the feeding amount of the feeding roll with a large feeding amount for fertilizer and the feeding roll with a small feeding amount for herbicide is set to 1:50, the herbicide of Since the same number of rotations of the feeding roll will suffice during spraying, it is not necessary to change the number of rotations of the feeding roll in a wide range as in the conventional case. There is no need to reduce the number of rotations, and it is possible to obtain high spraying performance without intermittent spraying.

Further, the partition plate between the respective feeding rolls has an effect that the respective feeding amounts of the respective feeding rolls are accurate and that frictional resistance is reduced due to the interposition of different materials during the rotation of the respective feeding rolls.

[Brief description of drawings]

FIG. 1 is an axial sectional view showing a first embodiment of the present invention.

2 is a cross-sectional view taken along the line II-II in FIG.

3 is a cross-sectional view taken along the line III-III in FIG.

FIG. 4 is an axial sectional view showing a second embodiment of the present invention.

FIG. 5 is an axial sectional view showing a third embodiment of the present invention.

[Explanation of symbols]

 1 Tank 2 Case 3 Side Lid 4 Spreading Path 5 Roll Shaft 6 Fork Guide 7-9 Feed Roll 10 Clutch Claw 11 Clutch A 12 Clutch Claw 13 Clutch B 14 Fork Guide 15 Partition Plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuhiro Horio 1-40, Nisshin-cho, Omiya-shi, Saitama Prefecture 2 Biological specific industrial technology research promotion mechanism (72) Inventor Yoshihiko Miyahara 1-chome, Nisshin-cho, Omiya-shi, Saitama Address 2 Biological specific industrial technology research promotion organization (72) Inventor Tomohiko Ichikawa 1-40, Nisshin-cho, Omiya-shi, Saitama 2 Biological specific industrial technology research promotion organization (72) Inventor Toho Expressway Ibaraki City, Osaka Prefecture Yamatedai 2-chome 9-104

Claims (5)

[Claims] 1. A delivery mechanism of a spreader, comprising a plurality of delivery rolls having different delivery amounts, wherein the delivery rolls can be selectively used depending on the difference in the amount of delivery. 2. A clutch A is interposed between two advancing rolls adjacent to each other, and the clutch A is engaged and disengaged by axial movement of the roll shafts to engage with the roll shafts of the two paying rolls. The delivery mechanism of the spreader according to claim 1, wherein the disengagement is switched. 3. A clutch B which rotates together with the roll shaft and slides in the axial direction is provided, and the clutch B is slid to engage / disengage to engage / disengage the pay roll with respect to the roll shaft. The feeding mechanism of the spreader according to claim 1 or 2. 4. A delivery roll (9) comprising three delivery rolls (7), (8), (9) having different delivery amounts.
The difference in the amount of delivery can be further increased by engaging a power source different from the delivery rolls (7), (8) with the above.
3. The feeding mechanism of the spreader according to any one of 3 above. 5. The feeding mechanism of the spreader according to claim 1, wherein a partition plate is loosely fitted between the feeding rolls.