JPH0639546Y2 - Feeding device of fertilizer applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a feeding device of a fertilizer applicator.

(Prior Art) In the conventional fertilizer applicator, the feeding of fertilizer is caused by natural fall and is supplied from the opening of the upper plate of the feeding roll to the eye hole of the intermittently rotating middle plate, and the fertilizer in the hole is rotated as the middle plate rotates. From the notch in the lower tray that is fed to the fertilizer hose and is supplied to the work groove part, as an improvement to this, so far, by the pressurized air introduced into the feeding device communicating with the hopper, A fertilizer application device of a rice transplanter in which a fertilizer is forcibly delivered through an upper regulating plate, a feeding plate, and a lower regulating plate in the device is in a known state.
(See Japanese Utility Model Laid-Open No. 60-116825) (Problems to be solved by the invention) In the fertilizer application device for rice transplanters described in the above publication,
The compressed air introduced into the feeding device is applied over the entire surface of the upper regulating plate, and a part of the compressed air forcibly pushes out the fertilizer when the openings of the three plates coincide with each other. It took more than necessary to pay out, and it was not used effectively.

The present invention has been devised in view of such a point, and an object of the present invention is to use compressed air only for feeding in a feeding device of a fertilizer applicator.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention aims to solve the problem by providing a partition wall in the roll case to form a passage for introducing the compressed air.

That is, in the present invention, in the feeding device for forcibly feeding the fertilizer through the opening of the feeding roll by the pressurized air introduced into the roll case communicating with the hopper, the introduction path communicating with the duct for introducing the compressed air is introduced. While enclosing with a partition provided in the roll case, this introduction path,
A structure in which a feeding roll formed of an upper plate, a middle plate, and a lower plate is provided in advance with respect to a through hole formed by each notch portion of the fixed upper plate and the lower plate and the eye hole of the rotating middle plate. Is taking.

(Operation) According to the present invention, the fertilizer from the hopper is supplied from the cutout portion of the upper plate in the feeding roll to the eye hole of the intermittently rotating middle plate, and the fertilizer in this hole is supplied to the lower plate as the middle plate rotates. It is supplied to the notch, but in the course of its movement, it is passed from the notch of the upper plate through the eyelet of the middle plate by the compressed air sent from the compressed air duct through the introduction passage formed by the partition wall in the roll case. The fertilizer is forcibly dropped through the through hole that communicates with the notch in the lower plate.

(Example) An example shown in the drawings will be described below.

First, a fertilizer applicator equipped with a device for feeding fertilizer by free fall will be described. In FIG. 18, (1) is a passenger vehicle body, which is equipped with front and rear wheels (2) and (3) and is driven by an engine (4). A planting part (5) behind the passenger car body via a lift mechanism
There is. The planting section (5) is provided with a fertilizer application section (6), and the fertilizer application section (6) comprises a hopper (29) and a fertilizer hose (30). Between the hopper (29) and the fertilizer hose (30), a fertilizing roll described later, that is, a feeding roll (6
There is 8). The roll case (32) in which the feeding rolls (68) are installed is connected to the hopper (29) as shown in FIG. 3, and the gear holder (36) is integrated with the case at the top of the roll case (32). ) Via the internal gear (33) of the planetary gear unit inside the gear case (37)
There is a planetary gear (34) that meshes with this, and a sun gear (35) that meshes with this.

The planetary gear (34) is driven by an inner hollow outer shaft (38) driven by a one-way clutch via a connecting plate (28).

(39) is a sun gear shaft, which drives a discharge spring (27) attached thereto to increase the speed. The feeding roll (6
8) is driven by the hollow outer shaft (38) but is not accelerated.
The output from the input shaft (40) shown in FIG. 4 is driven by the outer hollow outer shaft (38a) via the one-way clutches (41) (41), and the inner hollow outer shaft (38) is further driven.
Driven planetary gears (34)
The sun gear (35) intermittently drives the sun gear shaft (39) in one direction.

At the center of the inner hollow outer shaft (38) is the sun gear shaft (39),
This and the inner and outer hollow outer shafts (38) (38a) are
It is supported by a support cylinder (43) extending from the gear case (42) of 2).

The one-way clutches (41) (41) described above are provided between the support cylinder (43) and the outer hollow outer shaft (38a).

A discharge spring (27) in the fertilizer hose is attached to the sun gear shaft (39), and the input shaft (40) is driven from the rotary case (45) shown in FIG. 7 through a link mechanism. To explain, as shown in FIG. 7, the drive shaft (46) of the rotary case (45) is driven from the planted transmission case (44) through the sprocket and the chain, and the sprocket (47) and the chain (48). Through sprocket (4
9) is driven, and the eccentric pin (52) is driven from the shaft (50) of the rotary case (45) via the eccentric link (51).

A connecting rod (53) is attached to the eccentric pin (52),
The upper end of the connecting rod (53) is pivotally supported (56) on the long arm (54) as shown in FIGS.

The long arm (54) is pivotally supported (62) on the crank (63) by the U arm (60) pivotally supported (61), and the crank (63) drives the input shaft (40).

The proximal end of the long link (54) is pivotally supported (57) on the short arm (55).
The short arm (55) is pivotally supported (58) on the frame (64).

Further, the connection pivot (57) of the short arm (55) and the long arm (54) can be moved up and down by the adjusting handle (65) shown in FIGS. 13 and 14, which allows the connecting rod (53) to swing. Adjust the moving angle.

The adjustment handle (65) is screwed on a shaft (67) rotatable with respect to the frame, and its tip is screwed on a pivot shaft (55a) of an arm (55b) that moves integrally with the short arm (55). The pivot shaft (55a) slides in the slit groove (66) provided in the guide plate (64a) when the adjustment handle (65) is screwed in and out.

Therefore, when the short arm (55b) is moved by the adjustment handle (65) to adjust the position of the pivot shaft (57) and the rotary is driven, the rotary drive shaft (46) is driven,
The sprocket (49) is driven through the sprocket (47) and the chain (48), and the eccentric pin (52) is driven from the shaft (50) through the eccentric link (51).

The connecting rod (53) is driven by the eccentric pin (52), the U arm (60) is driven through a link mechanism composed of the long arm (54) and the short arm (55), and the input is made by the crank (63). Rotate the axis (40) forward and backward.

Thus, as described above, the outer hollow outer shaft (38) is passed from the input shaft (40) through the one-way clutches (41) (41).
It intermittently drives a) in one direction.

The pay-out roll (68) has a semi-circular hole (69) as shown in FIG.
Upper plate (68a) with a plate and lower plate (68 with a fan-shaped cutout (70)
The inner plate (68c) having the eye hole (71) is interposed between the b) and the b).

Then, the inner plate (68c) is rotated by the inner hollow outer shaft (38).

In FIG. 4, a rubber elastic body (73a) is attached to the eccentric shaft (73) of the knob (72), and by turning the knob (72), a gap between the upper plate (68a) and the middle plate (68c) is provided. Adjust how much the rubber elastic body goes into the gap of the middle plate (68c)
The top surface of the fertilizer filled in is scraped off with rubber to finely adjust the fertilizer application rate.

As described above, the sun gear shaft (39), the outer hollow outer shaft (38a) having the clutch portion, and the inner hollow outer shaft (38) constitute three shafts, but the support cylinder (43) And plate (68
There is a spring (74) between it and a).

As a result, the middle tray (68c) of the feeding roll (68) is rotated while the fertilizer is constantly pressed by the spring (74) from the top, so this is added to the weight of the fertilizer. Since the roll is pressed, the gap between the dishes is less likely to occur, which is effective in preventing the fertilizer from being caught between the dishes.

Further, the roll is smoothly driven, and the durability of the roll is improved.

In addition, the handle (75) axially mounted on the roll case (32) in FIGS. 3 and 5 is a handle for operating the unit clutch, and is provided from the outer hollow outer shaft (38a) to the inner hollow outer shaft (38). The transmission of power to the planetary gear (34) is turned on and off, and the rotation of the inner plate (86c) of the delivery roll (68) is stopped.

The eccentric pin (76) operated by the handle (75) is inserted between the upper and middle guard plates (78) (79) of the clutch (77), and the handle (75) is rotated to rotate the clutch (7).
7) Move up and down.

The intermediate collar plate (79) of the clutch (77) is provided with a plurality of pins (80), and when the pins (80) descend, the slots (82) of the collar ring (81) fixed to the outer hollow outer shaft (38a) are provided. ), Power is transmitted from the outer hollow outer shaft (38a) to the planetary gear (34) via the clutch (77) from the inner hollow outer shaft (38).
To rotate the sun gear shaft (39).

Also, the handle (75) is rotated in the opposite direction to the previous operation to resist the spring (84) and raise the clutch (77), so that the pin (80) is moved into the groove (81) of the collar ring (81). 82) and power is not transmitted from the outer hollow outer shaft (38a) to the inner hollow outer shaft (38), and thus is not transmitted to the planetary gear (34).

Therefore, the sun gear shaft (39) does not rotate.

Further, (91) in FIG. 3 is a communication hole between the hopper (29) and the roll case (32), (92) is a fertilizer discharge hole, and (93).
Indicates the rubber caps, respectively.

According to the fertilizer applicator as described above, fertilizer is supplied from the semi-circular arc hole (69) of the upper plate (68a) to the eye hole (71) of the inner plate (68c), and the intermediate plate (68c) is intermittently rotated to form an eye. The fertilizer in the hole (71) falls from the lower plate (68b) having the fan-shaped notch (70), and the fertilizer is supplied by natural fall. Therefore, it took time for the fertilizer to fall, which resulted in non-fertilized sections and multiple fertilized sections, which caused uneven growth of the crop.

The present invention is an improvement of this method in which air pressure is applied from above the fertilizer feeding roll to forcibly feed the fertilizer.

That is, as shown in FIG. 1, the hopper (29) and the roll case (18) are connected to each other through a communication hole (100), and the discharge hole (101) of the roll case (18) has a rubber cap (1
There is 02). The output from the input shaft (21) corresponding to the above-mentioned input shaft (40) is transmitted from the gear (23) to the hollow outer shaft (25) via the one-way clutches (22) (22), and the unit clutch It is adapted to be transmitted to the drive shaft (24) via the (27) and to drive the inner tray (16) of the feeding roll.

The clutch (27) is constantly urged by a spring (28) in the on-direction, and the handle (2
The clutch (27) can be disengaged by screwing 6) onto the roll case (18).

The pay-out roll (10) has an inner plate (12) having a semi-circular opening (11) and a lower plate (14) having a fan-shaped notch (15) and an inner plate (17) having a hole (17). 16) is composed of
The upper plate (12) and the lower plate (14) are fixed, and only the middle plate (16) is intermittently rotated by the drive shaft (24). The upper plate (12) has a notch (13) between it and the roll case (18) as opposed to the opening (11), and this is the fan-shaped notch (15) of the lower plate (14). ) Together with a hole (15a) formed between the pressure chamber and the air duct, the compressed air is sent from the accumulator (7), that is, the air chamber to the compressed air passage through the duct (8). It is like this.

Therefore, the tip of the duct (8) is blocked from the inside of the roll case (18) by the partition wall (9) forming a compressed air passage.

Now, by detecting an on / off operation of the planted clutch lever (for example, with a micro switch), a fan driving motor (not shown) is rotated to blow wind into the air chamber (7) and from the air chamber (7) to the roll case (18). Compressed air is sent inside, but the compressed air is cut from the duct (8) to the notches (13) and (15).
Is sent into the compressed air passage composed of the hole (15a)
The fertilizer in the eye holes (17) of the inner plate (16) facing these compressed air passages can be forcibly fed into the fertilizer hose (20).

In the illustrated case, the roll case (18) is partitioned by the partition wall (9), so that the compressed air is sent to the notch (13) of the upper plate (12) without flowing into the roll case (18).

Further, since the accumulator (7) shown in the figure is connected to the roll case (18) through the duct (8), the accumulator (7) is supported by the duct (8), and the accumulator support member is unnecessary. Therefore, not only can the structure be made lightweight and compact, but also the accumulator, duct, etc. can be easily attached and detached, and maintainability is good.
An accumulator that is long in the lateral direction may be formed in order to send uniform compressed air to each strip, and the branch pipe may be guided to each roll case as a duct.

(Effect of the device) The present invention, in the feeding device for forcibly feeding the fertilizer through the opening of the feeding roll, encloses the introduction path communicating with the duct for introducing the compressed air with the partition wall provided in the roll case, This introduction path is formed by the cutout portions of the fixed upper plate and the lower plate of the feeding roll composed of the upper plate, the middle plate and the lower plate, and the eye holes of the rotating middle plate. Since it is a structure that is provided to the hole, the compressed air does not affect the entire inside of the roll case, through the introduction path surrounded by the partition provided exclusively inside the roll case, the notch of the upper plate, the eyelet of the middle plate, Since it acts on the through hole formed by the cutout portion of the lower plate, the amount is small and the flow works smoothly and effectively, and the feeding of fertilizer is good.

Therefore, the fall time of the fertilizer is shortened, the non-fertilized section and the multi-fertilized section are less likely to occur, and unevenness in the growing of the crop is reduced.

Further, since the fertilizer is fed by the forced air pressure, it is possible to feed the fertilizer having a little moisture smoothly.

Furthermore, the amount of residual fertilizer on the pay-out roll is small, and the pay-out roll unit can be always maintained in a clean state.

[Brief description of drawings]

FIG. 1 is a sectional view of the device of the present invention, and FIGS. 2 (a), (b), (c), and (d) are plan views of the upper plate, the middle plate, and the lower plate of the feeding roll, and a sectional view of the duct portion of the roll case. Fig. 3 is a cross-sectional view of the roll case, Fig. 4 (a) and (b) are cross-sectional views of the roll case seen from a different direction from Fig. 3, and an operation explanatory view of the unit clutch, and Fig. 5.6 is the third. Drawing A sectional view and sectional view B, Drawing 7 is a rear view of a part cutaway of a planting transmission, Drawing 8 is a rear view of a hopper part, Drawing 9 is a front view of a hopper part with a part omitted. Fig. 10 is a front view of the hopper part, Fig. 11.12 is a front view of the link mechanism part showing a different operation, and Fig. 13.14 is a front view showing the different operation of the link mechanism adjusting part, Fig. 15 (a) (b) ( (C) (d) is a cross-sectional view of the fertilizer outlet, and a plan view of each dish. Figure 16.17 shows the operation of the link mechanism. Figure, Figure 18 is an overall view of the fertilizer applicator. (7) …… Accumulator (8) …… Duct (9) …… Partition (10) …… Feeding roll (11) …… Opening (12) …… Upper plate (13) …… Notched hole (14)… … Lower plate (15) …… Notch (16) …… Middle plate (17) …… Eye hole (18) …… Roll case (29) …… Hopper

Claims (1)

[Scope of utility model registration request] 1. In a feeding device for forcedly feeding fertilizer through an opening of a feeding roll by a pressurized air introduced into a roll case communicating with a hopper, an introducing passage communicating with a duct for introducing the compressed air is provided. It is surrounded by a partition wall provided in the roll case, and this introduction path is provided with notches of the fixed upper plate and lower plate of the feeding roll composed of the upper plate, the middle plate and the lower plate, and the rotation A feeding device for a fertilizer applicator, characterized in that it is provided so as to face a through hole formed by the eye of the inner plate.