JPH0530576Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for adjusting the amount of feed in an agricultural feed-out device that feeds powdery materials such as fertilizers and seeds to fields.

[Conventional technology]

As the above-mentioned agricultural feeding device, there is one constructed as disclosed in, for example, Japanese Utility Model Application Publication No. 59-191117.

In other words, a feed roll for powder and granular materials is provided with a first roll portion in which a groove is formed along the axial direction on the outer circumferential surface, and a tongue portion that is slidably inserted into this groove from the axial direction. A plurality of feed rolls are arranged in parallel on a coaxial core.

Then, by rotating the screw feed adjustment member for the second roll portion of each feed roll, the screw feed movement of the second roll portion in the axial direction with respect to the first roll portion is performed, and the groove and the tongue portion are rotated. The amount of feed of each feed roll is adjusted by changing the engagement depth in the axial direction of the roll and adjusting the volume of the feed recess formed here.

[Problem that the invention attempts to solve]

In the above-mentioned agricultural feeding device, when adjusting the feeding amount of a plurality of feeding rolls at the same time, it is necessary to manually adjust the rotation of the screw feed adjustment member of each feeding roll one by one. It takes time and effort. Further, if the rollers were adjusted one by one, there was a risk that errors would occur in the adjustment of each feed roll.

In the agricultural feed-out device, the angle of the screw feed adjustment member relative to the second roll portion must be fixed except when adjusting the feed amount. In this case, in the above-mentioned agricultural feeding device, the screw feed adjustment member is frictionally held against the first roll portion by an O-ring, and the angle of the screw feed adjustment member with respect to the second roll portion is determined.

Therefore, there is a risk that the screw feed adjustment member may rotate relative to the first and second roll portions due to vibrations during work, and the amount of feed may change during work.

The present invention is designed to allow the adjustment of the feeding amount of all feeding rolls to be performed accurately in a short time.
In addition, it is intended to be configured so that the amount of feeding does not change during work.

[Means for solving problems]

The feature of the present invention is that an agricultural feed-out device in which the above-described feed-out rolls are arranged side by side on a coaxial core is configured as follows.

A rotating shaft is mounted and supported in the feeding case of the feeding roll coaxially with the feeding roll, and the cross section perpendicular to the axial direction of the rotating shaft is constant in the axial direction, and the cross-sectional shape is similar to the axial center. A plurality of rotary operating members each having a different diameter shape that differs in the circumferential direction from the center to the outer circumferential surface thereof are fixed to the rotating shaft, and the rotating operating member is attached to each of the first roll portion and each screw feed adjustment member. recesses with different diameters that fit into the recesses are provided, and each rotating operation member is inserted and engaged with both the recesses with different diameters on each first roll portion and the recesses with different diameters on each screw feed adjustment member. The rotary shaft is configured to be freely movable in the axial direction between a first position where the screw feed adjusting member is inserted into the recess of each screw feed adjustment member and a second position where the rotation shaft is separated from the recess of each first roll portion while being inserted and engaged with the recess of each screw feed adjustment member. By moving the rotating shaft to the second position and rotating the rotating shaft, the entire screw feed adjustment member can be rotated.

[Effect]

In the case of the above configuration, by moving the rotating shaft in the axial direction to the second position, each rotation operation member is inserted into and engaged with the recess of each screw feed adjustment member, and each first roll portion is moved. I'll move it away from the recess.

If the rotation shaft is rotated in this state, each screw feed adjustment member that engages with each rotation operation member is rotated, and the amount of payout of all the payout rolls can be adjusted at the same time.

Next, by moving the rotating shaft in the axial direction to the first position, each rotating operation member is inserted into and engaged with the recessed portion of both the first roll portion and each screw feed adjustment member.

In this state, each rotation operation member engages with the first roll portion and the screw feed adjustment member, and the first roll portion and the screw feed adjustment member
They are in a state where they are connected by the rotation operation member. In this case, since the first roll part and the second roll part are connected to rotate together at the feeding recess, the second roll part and the screw feed adjustment member are connected by the first roll part. The state will be as follows.

Therefore, even if vibration is applied to the second roll portion or the screw feed adjustment member in this state, the angle of the screw feed adjustment member with respect to the second roll portion will not change.

[Effect of idea]

As described above, it is now possible to adjust the feeding amount of multiple feeding rolls by the same amount at the same time by manually rotating the common rotation axis, and the feeding amount of multiple feeding rolls can be adjusted accurately in a short time. This made it possible to improve the operability of adjustment operations.

Further, the screw feed adjustment member does not rotate relative to the second roll portion during the work, and the amount of feeding does not change, so that the work can be performed stably.

〔Example〕

FIG. 9 shows a riding rice transplanter equipped with a fertilization device 3, which is an example of the agricultural feeding device of the present invention.

This riding-type rice transplanter is a seedling planting device that has a fertilizing device 3 at the rear of a wheeled self-propelled body that can be raised and lowered via a link mechanism 2 that is swung up and down by a hydraulic cylinder 1. 4 are connected to each other, and the rotating force is transmitted from the self-propelled body to the seedling planting device 4, and powder fertilizer is applied near the seedlings planted by the four seedling planting arms 5 arranged in parallel in the lateral direction of the body. It is constructed so that work can be performed while supplying (equivalent to powder and granular materials).

The fertilizer application device 3 is constructed as follows.

As shown in FIGS. 4 and 5, two feeding parts 7 are connected to the lower portions of two fertilizer tanks 6 arranged in parallel in the lateral direction of the machine. As shown in FIG. 2, a single rotating shaft 14 is disposed penetrating through the boss 13 of the tank support 12 and the feeding case 10 of each feeding section 7, The rolls 11 are fitted around the rotating shaft 14, and each delivery roll 11 is rotated integrally by engagement with a rotating operation member 14a having a rectangular cross section and fixed to the rotating shaft 14. .

As a result, a plurality of feed rolls 11 are coaxially arranged in parallel, and the rotating shaft 14 is supported coaxially with the feed rolls 11. As shown in FIG. 4, one seedling planting arm 5 is connected to a rotating shaft via a link type transmission mechanism 15 to a swing link 17a of a link mechanism 17 that is attached to a transmission case 16 so as to be able to drive and swing. 14 are interlocked and connected.

Therefore, in conjunction with the seedling planting movement of the seedling planting arm 5, the rotating shaft 14 is driven to reciprocate within a set angle, and all the delivery rolls 11 are configured to be reciprocated at the same time. Then, a predetermined amount of fertilizer determined by the volume is taken out from the fertilizer tank 6 by the feeding recess 18 provided on the circumference of each feeding roll 11, and is transferred from the inside of the feeding case 10 via the supply hose 8 to the groove cutting machine. 9 falls into the groove formed in the field and supplies it.

As shown in FIG.
9, and the rotating shaft 14 so as to rotate integrally by engaging the tongue portion 20a in the groove of the first roll portion 19 forming the feeding recess 18.
The first roll portion 19 slides in the axial direction of the
The second roll portion 20 is connected to the second roll portion 20. Then, a stopper 21 for the first roll portion 19 is attached to the feeding case 10, so that the third stopper of the first roll portion 19 is allowed to rotate relative to the feeding case 10 only within a set angle. It acts on the inside of the long hole shown in the figure.

On the other hand, the screw feed adjustment member 22 that is internally fitted and screwed into the second roll portion 20 is externally fitted onto the rotating shaft 14 so as to be relatively rotatable, and is engaged with the operation knob 22a so that only relative rotation is possible. The screw feed adjustment member 22 relative to the rotating shaft 14 is controlled by the stopper 23.
It is configured to prevent sliding in the axial direction.
The end portion 22b of the screw feed adjustment member 22 is connected to the first roll portion 19 so that only relative rotation is possible, thereby preventing the first roll portion 19 from sliding in the axial direction with respect to the rotating shaft 14. The feed amount is changed and adjusted by rotating the screw feed adjustment member 22.

In other words, when the screw feed adjustment member 22 is rotated, the second roll portion 20
is screwed into the first roll portion 19, and the length of the tongue portion 20a inserted into the groove of the first roll portion 19 changes, thereby changing the volume of the feeding recess 18.

As shown in FIG. 2, the interlock between the transmission member 15a and the rotation shaft 14 that constitute the link type transmission mechanism 15 is controlled by a second rotary operation member 14b having a rectangular cross section and a transmission member 15a fixed to the rotation shaft 14. This is done by engaging with.

As shown in FIG. 2, when the rotating shaft 14 is pushed in until it reaches the first mounting position A where the manual operation part 14c of the rotating shaft 14 approaches the feeding case 10, the rotating operating member 14b engages with the transmission member 15a. and is interlocked and connected to the transmission member 15a. and,
The four first rotation operating members 14a are inserted into and engaged with both the first roll portion 19 and the screw feed adjustment member 22, and are in a state in which they are interlocked and connected to the feeding rolls 11 of all the feeding sections 7.

In this state, the rotation operation member 14a is connected to the rotation shaft 14.
The first roller is inserted into and engaged with both the first roll portion 19 and the screw feed adjustment member 22.
It corresponds to the position. In addition, the human operation section 14c
The rotary shaft 14 can be held at the first mounting position A by acting on a stopper 24 made of a spring that can be elastically deformed and is configured to engage only for relative rotation.

As shown in FIG. 1, when the rotating shaft 14 is pulled out until it reaches the second mounting position B, where the manual operation part 14c is moved away from the feeding case 10 to the side and outside of the aircraft body, the rotational operation member 14b comes off from the transmission member 15a. The linkage with the transmission member 15a is then cut off. Then, the four rotation operation members 14a are inserted into the square holes 22c (corresponding to the recesses) of the screw feed adjustment member 22 from the square holes 19a (corresponding to the recesses) of the first roll portion 19. It becomes out of place.

In this state, the rotation operation member 14a is connected to the rotation shaft 14.
This corresponds to a second position in which the screw is moved in the axial direction of the screw feed adjusting member 22 and is separated from the first roll portion 19 while remaining engaged with the square hole 22c of the screw feed adjusting member 22.

As described above, the rotation shaft 14 is pushed into the first mounting position A as shown in FIG. 2, the rotation operation member 14b is engaged with the transmission member 15a, and the four rotation operation members 14a are If the first roll portion 19 and the screw feed adjustment member 22 are engaged, the second roll portion 20 and the screw feed adjustment member 22 will be in a connected state. Then, in conjunction with the seedling planting movement of the seedling planting arm 5, the rotating shaft 14 and each delivery roll 11 are driven to reciprocate and rotate, so that the fertilizer is dropped and supplied into the groove in the field.

Conversely, the rotation shaft 14 is pulled out to the second mounting position B as shown in FIG.
4b from the transmission member 15a, and operate the four rotation operation members 14a apart from the first roll portion 19 while still being engaged in the square holes 22c of each screw feed adjustment member 22, the manual operation section 14c By rotating the rotating shaft 14, each screw feed adjustment member 22 is rotated to adjust each feed roll 11.
The amount of feed can be adjusted at the same time. In this case, the rotary shaft 14 and each delivery roll 11 are not driven to reciprocate in conjunction with the seedling planting movement of the seedling planting arm 5.

A pair of feeding recesses 2 for rice and wheat seeds are provided on the lower circumference of the feeding rolls 11 of all the feeding parts 7.
5 and 25 are provided in a state where the volume can be adjusted by rotating the screw feed adjustment member 22.

As a result, the stopper 21 of the feeding section 7 is pulled out, the transmission member 15a is removed from the transmission rod 15b, and the feeding recess 25 is replaced with the feeding recess 18 for fertilizer.
The feed roll 11 is placed on the upper side instead of the
Rotate and switch the mounting position. Therefore, direct sowing work can be performed instead of fertilizing work, and even in this direct sowing work, the feed amount can be simultaneously adjusted by the rotary shaft 14.

As shown in FIG. 6 in the self-propelled aircraft, each of the left and right front wheels 26 and rear wheels 27 has a front wheel 28
Or so that the mounting position of the rear wheel 29 can be adjusted.
First, second, and third mounting holes 30, 31, and 32 for the front and rear wheels 28, 29 are arranged in parallel. This results in
Change settings for planting seedling spacing in the horizontal direction of the aircraft, fertilization device 3
Regardless of the attachment or non-attachment of the groove cutter 9 and the placement setting of the furrower 9, the position in the middle of the seedling planting area or sowing area,
The front wheels 28 and the rear wheels 29 are configured to be able to adjust their positions so that they pass through an intermediate position between a seedling planting area and an adjacent fertilizing area, or an intermediate position between the fertilizing areas.

As shown in FIG. 6, when the spacing between planted seedlings is set to a width l and the fertilization device 3 is not installed, the left and right front and rear wheels 28 and 29 are installed in the first mounting hole 30. As shown in Figure 7, the spacing between planted seedlings should be set by a width of l.
, and when arranging the furrower 9 so that the spacing between sowing spots during direct sowing is equal to the spacing l between seedlings when planting seedlings, the left and right front and rear wheels 2
8, 29 into the third mounting hole 32, and the other into the second mounting hole 32.
Attach it to the mounting hole 31.

As shown in Fig. 8, when setting the planting seedling interval to width L and arranging the furrower 9 so that the two fertilization areas are located between the planted seedlings on the outside of the machine, the left and right The front and rear wheels 28 and 29 are attached to the third attachment hole 32.

[Another example]

The first rotation operation of the screw feed adjustment member 22
In order to prevent the roll portion 19 from rotating together with the second roll portion 20, instead of the stopper 21, friction between the first roll portion 19 and the feeding case 10 may be used.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional rear view of the feeding unit showing a state in which the feeding amount of each feeding unit can be adjusted simultaneously, and Fig. 2 shows the driving state of the feeding rolls, where the first and second roll portions and the screw feed adjustment member are connected to each other. FIG. 3 is a vertical cross-sectional side view of the feeding section showing the connected state, FIG. 4 is a side view of the seedling planting device and the fertilizing device, and FIG. 5 is the seedling planting device and the fertilizing device. FIGS. 6, 7, and 8 are explanatory diagrams showing how to adjust the mounting positions of the left and right front and rear wheels, and FIG. 2 is an overall side view of the riding rice transplanter. 10... Feeding case, 11... Feeding roll, 14... Rotating shaft, 14a... Rotating operation member,
18... Feeding recess, 19... First roll portion,
20... Second roll part, 20a... Tongue piece part, 2
2... Screw feed adjustment member, 19a, 22c... Recessed portion.

Claims (1)

[Claims for Utility Model Registration] A feed-out roll 11 for powder and granular materials is provided by a first roll portion 19 having a groove formed on the outer peripheral surface along the axial direction.
and a second roll portion 20 having a tongue portion 20a that slidably engages in the groove from the axial direction, and rotates a screw feed adjustment member 22 for the second roll portion 20. By this, the second roll portion 2
0 in the axial direction relative to the first roll portion 19, and the depth of engagement between the groove and the tongue portion 20a in the axial direction is changed to increase the volume of the feeding recess 18 formed here. In an agricultural feed-out device configured to be adjustable and in which a plurality of feed-out rolls 11 having the above configuration are coaxially arranged side by side, the feed-out case 10 of the feed-out roll 11 includes:
A rotating shaft 14 is mounted and supported coaxially with the feed roll 11, and the cross section perpendicular to the axial direction of the rotating shaft 14 is constant in the axial direction, and the cross-sectional shape is different from the axial center. A rotary operation member 14a having a different diameter shape whose distance to the outer peripheral surface differs in the circumferential direction.
are fixed to the rotating shaft 14, and the first roll portion 19 and each screw feed adjustment member 22 are fixed to the rotating shaft 14.
recesses 19a and 22c having different diameters that fit into the rotation operation member 14a, respectively, and each rotation operation member 14a having a different diameter recess 19a of each of the first roll portions 19; A first position in which the screw feed adjustment members 22 are inserted into and engaged with both of the recesses 22c of different diameter shapes, and a first position in which the screw feed adjustment members 22 are inserted into and engaged with the recesses 22c of each of the screw feed adjustment members 22. Recess 1 of roll portion 19
The rotating shaft 14 extends over a second position away from 9a.
is configured to be freely movable in the axial direction, and by moving the rotating shaft 14 to the second position and rotating the rotating shaft 14, the full screw feed adjustment member 22 can be rotated. Agricultural feeding device configured.