JPS6035370Y2 - Feeding device for seeds, fertilizers, etc. - Google Patents

Description

[Detailed description of the invention] This invention relates to a device for dispensing seeds, fertilizers, etc., in which a pair of dispensing rolls with grooves and another dispensing roll having adjustment pieces that fit into the grooves move forward and backward in a nested manner. In a freely adjustable feeding device, the seed or fertilizer is prevented from interfering with the screws or splines attached around the central axis to adjust the forward and backward movement of these rolls.

As is well known, in a device for dispensing seeds, fertilizers, etc., there are a main dispensing roll provided with a dispensing groove, and an auxiliary dispensing roll disposed with a dispensing amount adjusting piece that fits freely in the dispensing groove of the dispensing roll. In many cases, a metering type feeding means is adopted in which the feeding grooves are nested in each other, and in this case, the auxiliary feeding roll side is fitted with a feeding amount adjusting piece on the outer periphery of the cylindrical portion in which the feeding groove is formed. There is no fitting relationship on the inner periphery of the portion.

Therefore, looseness is likely to occur between both rolls, and if fertilizer etc. intervenes between the groove and the adjustment piece, it will fall into the space around the center of both rolls, and this will cause the outer circumferential screw part formed to adjust the forward and backward movement of both rolls. If they are brought into splines, etc., it becomes difficult to adjust or disassemble them after the fact, and there is a risk that rust may occur depending on the intervening objects, so it has become necessary to solve these problems.

This invention was devised to solve the above problem, and its purpose is to prevent seeds, fertilizers, etc. from entering the rolls, and thereby adjust the metering of both feed rolls and disassemble the kettle. The purpose of the present invention is to provide a device for dispensing seeds, fertilizers, etc. that facilitates and speeds up the process, and therefore, the feature is that two dispensing rolls are arranged in the axial direction, and one dispensing roll has a A protruding cylindrical part that protrudes from the base of the roll toward the other dispensing roll in the axial direction, and a plurality of dispensing grooves in the circumferential direction that open toward the other dispensing roll in the axial direction are provided on the outer periphery of the protruding cylindrical part. Place it on the other feeding roll,
A plurality of feeding amount adjusting pieces are provided which protrude from the base of the roll toward the one of the feeding rolls in the axial direction and are fitted to each feeding head so as to be slidable in the axial direction. In an apparatus in which the amount of feeding is adjusted by relatively advancing and retreating in the direction, the other feeding roll is provided with a piece that protrudes from the base of the roll toward the one feeding roll in the axial direction and is inner circumferentially than the feeding amount adjustment piece. The present invention includes an intervention prevention cylindrical portion that is located on the side of the projecting portion and is fitted inside the protruding cylindrical portion so as to be slidable in the axial direction.

This invention will be explained below with reference to an illustrated example.

Figure 1 shows a fertilizing/seeding machine equipped further back to the rear of a rotary tiller towed by the rear of a tractor, and the left side of the figure corresponds to the direction of travel, and Figure 2 shows its ■-■
3 is a sectional view taken along the line ■-■.

1 in the figure is a pair of upper and lower parallel links, and the link 1 is
The front end is pivotally connected to a tool bar (not shown) installed horizontally in the rear width direction of the tiller, and the rear end is pivotally connected between the front end supports 2 of the dual-purpose machine.

The figure 3 shows a common body constituting the main frame of this working machine.The body 3 is a U-shaped integral frame body to prevent rainwater from entering, and the front half of the body 3, which is elongated from front to back, is used for fertilization. Apparatus A will be constructed, and seeding apparatus B will be constructed in the latter half.

First, let's talk about the fertilizer application device A. In this device, a fertilizer introduction tube 4 is provided in the upper part in a continuous manner, and the tube 4 has a
The lower end of a bellows-shaped fertilizer guide pipe 5 from a fertilizer tank (not shown), which is separately held upright on the tillage rotary via a stay, is connected vertically.

A tapered fertilizer supply space 6 is formed in the lower part of the fertilizer introduction tube 4 so as to be concentric with the tube 4, and this space 6 connects a pair of left and right opposing section plates 7, 7 to the common body 3. It is formed by vertically installing it on the bottom of the earthen wall.

Note that this dividing plate 7 has a special shape that approaches the outer periphery of the roll, which will be described later, and a connecting plate 8 that also serves as a falling guide is placed between them.
Be prepared.

On the other hand, the fertilizer dispensing mechanism is provided with a fertilizing drive shaft 10 that is rotatably driven via the left drive wheel 9, and the shaft 10 is rotatably supported via the left and right walls of the common body 3. As shown in the second figure, a first spline 11 is formed on the left side at a corresponding location in the common body 3 of 10, and a main feed roll 12 is engaged with the spline 12 so as to be movable forward and backward.

The roll 12 has a plurality of feeding grooves 13 on its outer periphery, and its right end is open as before.

14 is a transmission cylinder that is freely rotatable around the fertilizing drive shaft 10 and passes through the right side wall of the common body 3;
A retaining ring 15 pinned to the fertilizing drive shaft 10 abuts on the outer end thereof, while a second spline 16 is formed on the outer periphery of the inner end.

18 is a turnbuckle tube shown as a screw tube, and the drive shaft 10
It is concentrically fitted to the middle part of the shaft in the axial direction so as to be relatively rotatable and immovable in the axial direction.

The female third spline 17 of the turnbuckle tube 18 is coupled to the second spline 16 of the transmission tube 14 so as to be non-rotatable and movable in the axial direction.

Further, a right-handed threaded portion 19 and a left-handed threaded portion 21 are formed at both ends of the turnbuckle tube 18, respectively, and the right-handed threaded portion 19 and the left-handed threaded portion 21 are threaded in opposite directions. A sub-feeding roll 22 is externally screwed into the left-hand threaded portion 21 via the threaded portion 20 and via a second female threaded portion 23 in a concentric manner so as to be movable forward and backward in the axial direction.

In this case, the side feed roll 22 is the main feed roll 1 as before.
A feeding amount adjustment piece 24 that fits into each of the two feeding grooves 13...
In addition to integrally protruding a plurality of pieces of . . A circular interference prevention cylinder part 26 is integrally formed, and this relationship is designed to prevent fertilizers and seeds from falling around the central spiral shaft.

In the above case, the lower end of the fertilizer supply space 6 always corresponds to the feeding space a in a concentric manner, and therefore the main and comic drawing feeding rolls 12 and 22 are both adjusted to move forward and backward by the same amount. As a means of achieving this, first, a lock 27 is provided protruding from the outer periphery of the retaining ring 15 so that it is exclusively fixed together with the fertilizing drive shaft 10 except during operation, and at the outer periphery of the transmission cylinder 14. A rotation transmission plate 28 is fixedly installed in the rotation transmission plate 28.

A saucer-shaped rotary operation piece 29 is interposed between the lock support 27 and the rotation transmission plate 28 so as to be able to move forward and backward. The outer ends of the engagement and disengagement pins 31 that are fixed in two places in a penetrating manner are connected to the engagement lock opening 32 of the Rotsu Suketsu 27.
. . , and the inner end is engaged with the transmission guide port 33 of the rotation transmission plate 28. On the other hand, if the rotation operation piece 29 is pushed against the spring 30, the engagement pin 31 is removed from the lock holder 27, and when the rotation operation piece 29 is rotated, the turnbuckle tube 18 is rotated through the transmission tube 14.
The main and sub-feeding rolls 12 and 22 are adjusted to advance and retreat in opposite directions, and thus the feeding space a is always maintained in a concentric relationship.

The amount of fertilizer dispensed in this way is measured by a metering brush 35 attached to a stay 34 hanging vertically at the front between the two facing sections. In order to do this without causing any damage to the feeder, the trailing side of the feeding groove 13 is designed to have a gentler groove angle than the leading side to facilitate escape.

Next, the fertilizing chute 36 constructed at the lower part of the feeding device will be explained. The chute 36 is an integral cylinder branching in a V-shape, with the vicinity of the receiving opening 37 at the upper end facing vertically, and the lower part facing outward. The rectangular tube-shaped branch discharge portions 38 having an inclined orientation are connected on the left and right sides, and fixed to the opposing section guide plates 7, 7 by bolts.

The receiving ports 37 of the chute 36 are actually independent on the left and right sides, but they are placed next to each other and correspond concentrically to the bottom side of the feeding space a. The outlet 39.39 is connected to the front end support 2,
The two legs are connected to a fertilizer chute 40 and a fertilizer groove cutting disc 41, 41, which are provided to spread fertilizer.

On the other hand, seeding device B is constructed at the rear of fertilization device A, and although it is constructed almost in the same way as device A, the overall configuration will be explained below with some slightly different components. Reference numeral 44 denotes a seed introduction tube to which a seed guide pipe 45 led from a seed tank arranged in parallel with the fertilizer tank is connected, and seeds are supplied to the feeding groove 13 through a seed supply space 46.

The feeding device comprises a seeding drive shaft 47 with another sprocket 49 which is interlocked by a sprocket 48 of the fertilization drive shaft 10.
Therefore, it is said that it can be driven freely.

Further, the main and sub-feeding rolls 12 and 22 are the same as those on the fertilizing side, but there is a partial difference in that a cam sprocket 50 is integrally formed on the outer periphery of the left end of the main feeding roll 12.

This is for interlocking the spot sowing control plate 52 which is provided in a pivot manner with respect to the U-shaped seeding chute 51 which is open at the rear. It has a circular shape and responds to the reciprocating movement of the cam plate 55 with the cam 54 on the outside of the chute 51.

Reference numeral 42 denotes a sowing shoe, and 43 a sowing groove cutting disk, which are arranged at the center in the width direction and at the rear of the fertilizing device.

Therefore, if the dispensing device is configured as described above, for example, in the process of receiving fertilizer into the dispensing groove 13 and dispensing it,
Both rolls 12 through the fitting gap between both rolls 12 and 22
．． 22, but in this case, the intervention prevention cylinder part 26 that spans the entire circumference acts as a second-stage deterrent.
Therefore, the fertilizer rarely reaches the central space and is reliably removed from between the feeding amount adjustment pieces 24 and 24.

In particular, since the intervention prevention cylinder part 26 fits and holds the outer cylinder part 25 together with the feeding amount adjustment piece 24, the stability between both rolls 12. Since circumferential gaps between the holes 22 and 22 are less likely to occur, the risk of fertilization etc. intervening in the first stage gap is greatly reduced, and this improves stability and prevents interference.
The addition of these functions in an extremely organic manner to prevent intervention.

From the above, in this embodiment, no fertilizer or the like falls into the right-hand or left-hand threads 19 and 21, and the adjustment work can be done easily and quickly.

In addition, especially when an integral outer frame is constructed like the common body 3, the intrusion of rainwater, etc. is effectively prevented, which is suitable for dispensing fertilizer, etc., and also effectively prevents the rust mentioned above. This makes it possible to provide an outer frame that is stronger and more aesthetically pleasing.

This invention is as described above, and includes a payout roll having a plurality of payout amount adjustment pieces that protrude from the base of the roll toward the other payout roll in the axial direction and are located on the inner peripheral side of the payout amount adjustment pieces. In addition, since the protruding cylinder part is equipped with an intervention prevention cylinder part that is slidably fitted in the axial direction, seeds, fertilizers, etc. are prevented from interfering with the inside of the delivery roll, and thereby the metering of both delivery rolls is prevented. The adjustment and disassembly work for the system has become easier and can be done more quickly and accurately, and it is also an excellent idea in that it can be realized by adding an extremely simple configuration.

Further, in the present invention, a strong payout body can be constructed by both payout rolls, and play between the both payout rolls can be reduced.

In addition, the strength of the feed roll itself equipped with the feed amount adjustment piece can be improved by the intervention prevention cylinder part. The cylindrical portion can receive the feeding amount adjusting piece, and the intervention preventing cylindrical portion can effectively prevent external force from acting on the feeding amount adjusting piece from the inside of the feeding roll. This can effectively prevent the feeding amount adjustment piece from being broken.

Note that either one of the two rolls 12, 22 may be moved and adjusted, and an inner cylinder may be further added to the inner periphery of the main delivery roll 12 at a distance from the outer cylinder part 25.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a fertilizing/seeding machine that shows an example of this invention, Fig. 2 is a sectional view taken along the line ■-■, and Fig. 3 is its nl
-1 line sectional view, FIG. 4 is a view taken along the Y arrow in FIG. 3, and FIG. 5 is a partial perspective view showing the relationship between both delivery rolls. 12... Main feeding roll, 13... Feeding groove, 22... Sub-feeding roll, 24...
Feeding amount adjustment piece, 25...Outer cylinder part, 26...
...Intervention prevention cylinder part, A, curve, fertilizer application device, B...
・Seeding device.

Claims (1)

[Scope of utility model registration request] Two feed rolls are disposed in the axial direction, one feed roll is provided with a protruding cylindrical portion that protrudes from the base of the roll toward the other feed roll in the axial direction, and the outer peripheral portion of the protruding cylindrical portion is provided with a , a plurality of feeding grooves are provided in the circumferential direction that open toward the other feeding roll in the axial direction, and each feeding groove protrudes from the base of the roll toward the above-mentioned one feeding roll in the axial direction. In a device that is equipped with a plurality of feeding amount adjustment pieces that are slidably fitted in the groove in the axial direction, and adjusts the feeding amount by moving both feeding rolls back and forth relative to each other in the axial direction, the feeding amount of the other feeding roll is adjusted. The roll protrudes from the base of the roll toward the one of the feed rolls in the axial direction, is located on the inner circumferential side of the feed amount adjustment piece, and is fitted inside the protruding cylindrical portion so as to be slidable in the axial direction. A dispensing device for seeds, fertilizers, etc., characterized by being equipped with an intervention-preventing cylindrical portion.