JP6851612B2 - Agricultural work machine - Google Patents

Description

The present invention relates to an agricultural work machine. In particular, the present invention relates to an agricultural work machine capable of making the plowing depth after work uniform while providing working parts having different turning radii.

Conventionally, the tilling claws are arranged around the horizontal axis at the lateral end of the central tilling device, and the tilling claws are similarly arranged around the horizontal axis, and the side tilling depth is shallower than that of the central tilling device. A tillage device provided with the device is disclosed (Patent Document 1).

According to the conventional tillage device, when the side tillage device is cultivated before the tillage by the central tillage device, the uncultivated soil surface is cultivated shallowly in advance and then weeded, and then deep tillage is performed. It becomes possible.

Japanese Unexamined Patent Publication No. 61-282001

However, in the technique disclosed in Patent Document 1, there is a problem that the tilling depth is not aligned because the lower end of the rotating region of the central tilling device and the lower end of the rotating region of the side tilling device are not aligned.

The present invention is intended to solve the above-mentioned problems associated with the prior art, and an object of the present invention is to provide working portions having different turning radii and to make the plowing depth after the work uniform. It is in the place of providing agricultural work machines that can be used.

According to one embodiment of the present invention, the first working body includes a first working body and a second working body that is provided in the first working body so as to be switchable between a folded state and an unfolded state. The second working body includes a first working portion including a first claw shaft and a first claw provided on the first claw shaft, and the second working body is provided on the second claw shaft and the second claw shaft. It has a second working part including a claw, and has a first turning radius which is a distance from the axis of the first claw shaft to the tip of the first claw and the second claw from the axis of the second claw shaft. The second turning radius, which is the distance to the tip of the head, is different from each other, and when in the deployed state, the lower ends of the rotating region of the first working portion and the lower ends of the rotating region of the second working portion are aligned with each other. , Agricultural work machines are provided.

The first turning radius may be longer than the second turning radius.

The rotation speed of the first claw shaft and the rotation speed of the second claw shaft may be different from each other.

The rotation speed of the first claw shaft may be lower than the rotation speed of the second claw shaft.

According to the present invention, it is possible to provide an agricultural work machine capable of making the plowing depth after work uniform while providing working portions having different turning radii.

It is a figure which shows the folded state of the agricultural work machine which concerns on one Embodiment of this invention. It is a figure which shows the development state of the agricultural work machine which concerns on one Embodiment of this invention. It is a schematic diagram which shows the turning radius of the agricultural work machine which concerns on one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The embodiments shown below are examples of embodiments of the present invention, and the present invention is not limited to these embodiments. In the drawings referred to in the present embodiment, the same part or a part having the same function is given the same code or a similar code (a code in which A, B, etc. are simply added after the numbers), and the process is repeated. The description of may be omitted. If there are parts with similar functions on the left and right, the one on the left is suffixed with "L", and the one on the right is suffixed with "R". If there is no need to make a distinction, the suffix may not be added. In addition, the dimensional ratio of the drawing may differ from the actual ratio for convenience of explanation, or a part of the configuration may be omitted from the drawing.

<Embodiment>
A part of the configuration and work contents of the agricultural work machine according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2. The agricultural work machine according to the embodiment of the present invention is a farm work machine such as a tiller work machine or a puddling machine, which is connected to the rear part of a traveling machine such as a tractor and cultivates or stirs soil by rotating a work claw. Can be used. The present embodiment will be described by taking as an example an agricultural work machine in which the left and right working bodies (second working bodies) can be folded and deployed on both sides of the central working body (first working body). , A farming machine in which the working body (second working body) can be folded and deployed on one side of the central working body (first working body) may be used.

[Structure of agricultural work machine]
The agricultural work machine 1 has a three-divided structure including a central working body (first working body) 10, a left working body (second working body) 20L and a right working body (second working body) 20R on both sides of the central working body 10. It has become. The central work body 10 is arranged in the central portion of the agricultural work machine 1. The left working body 20L and the right working body 20R are provided on the central working body 10 so as to be switchable between a folded state and an unfolded state, respectively.

The central working body 10 includes an input shaft 13, transmission frames 15 and 16, and a rotary working unit (first working unit) 11.

The top mast (not shown) and the lower link connecting portion (not shown) are provided at the front central portion and the front left and right two positions of the central working body 10, respectively. The top mast and the lower link connecting portions provided at the two left and right positions are connected to the top link of the tractor (not shown) and the lower links (three-point link connecting mechanism) provided at the two left and right positions, respectively. The agricultural work machine 1 and the tractor may be connected via an auto hitch frame mounted on the three-point link mechanism of the tractor.

The input shaft 13 projects forward. Power is transmitted to the input shaft 13 from the PTO (Power Take Off) shaft of the tractor via a universal joint or the like. The input shaft 13 may be installed inside the gear box. In this case, the gear box is provided in the front central portion of the central working body 10.

The transmission frames 15 and 16 also serve as a main body frame and extend horizontally on both the left and right sides. The transmission frames 15 and 16 have a transmission shaft (not shown) inside.

The rotary work unit 11 has a rotary claw shaft (first claw shaft) 101 and a plurality of tilling claws (first claw) 103. The plurality of tilling claws 103 are detachably attached around the axis of the rotary claw shaft. The power transmitted from the tractor to the input shaft 13 rotates the transmission shaft to rotationally drive the rotary claw shaft 101, and rotates the rotary work unit 11 in a predetermined direction to perform tillage work. The rotary claw shaft may include a mounting flange and a mounting holder, and the plurality of tilling claws 103 may be detachably attached to the mounting flange or the mounting holder. When a gearbox is provided, the power transmitted from the tractor to the input shaft 13 is changed by the gearbox 14 to rotate the transmission shaft.

The left working body (second working body) 20L has a left shaving work unit (second working unit) 21L, and the right working body (second working body) 20R has a right shaving work unit (second working unit) 21R. Has. The left shaving work unit 21L has a left shaving claw shaft (second claw shaft) 201L and a plurality of shaving claws (second claw) 203L. Similarly, the right shaving work unit 21R has a right shaving claw shaft (second claw shaft) 201R and a plurality of shaving claws (second claw) 203R.

As described above, the power transmitted from the tractor 90 to the input shaft 13 is transmitted to the left working body via the clutch 30 provided on the rotating shaft together with the rotary working portion 11 of the central working body 10 via the above-mentioned transmission mechanism. It is transmitted to the left and right puddling work portions 21L and 21R provided on the 20L and the right working body 20R, and is configured to rotate the left and right puddling work portions 21L and 21R in a predetermined direction.

The switching unit 23L rotates the left working body 20L with respect to the central working body 10 to switch between the folded state and the unfolded state. Similarly, the switching unit 23R rotates the right working body 20R with respect to the central working body 10 to switch between the folded state and the unfolded state. Here, FIG. 1 shows a folded state in which both the left working body 20L and the right working body 20R are folded. On the other hand, FIG. 2 shows a deployed state in which both the left working body 20L and the right working body 20R are opened.

When the agricultural work machine 1 is in the deployed state (FIG. 2), the lower end of the rotating region of the rotary working unit 11 and the lower end of the rotating region of the left shaving work unit 21L and the right shaving work unit 21R are aligned with each other. Here, it will be described with reference to FIG. FIG. 3 is a schematic view showing the turning radius of the agricultural work machine according to the embodiment of the present invention. The rotation region of the rotary work unit 11 is a region defined by a radius (first turning radius) r1 which is a distance from the axial center O1 of the rotary claw shaft 101 to the tip of the tilling claw 103. That is, the rotation region of the rotary work unit 11 is a circle having a radius r1. Similarly, the rotation region of the left and right puddling work portions is the radius (second turning radius) r2 which is the distance from the axis O2 of the left and right puddling claw shafts (201L and 201R) to the tip of the puddling claw (203L and 203R). This is the area defined by. That is, the rotation region of the left and right puddling work portions is a circle having a radius r2. In this example, r1 is longer than r2. Further, the axis O1 and the axis O2 are misaligned, and they are not on the same axis.

As shown in FIG. 3, the lower end E1 of the rotation region of the rotary work portion 11 and the lower ends E2L and E2R (combining E2L and E2R of E2) of the rotation region of the left and right puddling work portions (21L and 21R) are aligned with each other. .. When the agricultural work machine 1 is in the deployed state (FIG. 2) by aligning the lower end E1 of the rotation region of the rotary work portion 11 and the lower end E2 of the rotation region of the left and right puddling work portions (21L and 21R) with each other in this way. When the work is performed, the effect is that the cultivation depth d after the work can be made uniform.

When the agricultural work machine 1 is in the folded state (FIG. 1), the central work body 10 only works, and the left and right work bodies 20L and 20R do not work. As described above, the rotary working portion 11 of the central working body 10 is provided with a plurality of tilling claws 103. Therefore, when the agricultural work machine 1 is in the folded state (FIG. 1), the central work body 10 performs the rotary work.

On the other hand, when the agricultural work machine 1 is in the deployed state (FIG. 2), in addition to the central work body 10, the left and right work bodies 20L and 20R also perform work. As described above, the puddling work portions 21L and 21R of the left and right working bodies 20L and 20R are provided with a plurality of puddling claws 203L and 203R. Therefore, when the agricultural work machine 1 is in the deployed state (FIG. 2), in addition to the central work body 10, the left and right work bodies 20L and 20R also perform puddling work.

By the way, in general, in order to perform the puddling work with the work machine that performs the rotary work, it is necessary to increase the rotation speed of the rotary claw shaft as compared with the rotary work, or to work at the same place a plurality of times. This is due to the difference in the shape of the claws, such as the tilling claw 103 not hitting the soil mass as much as the puddling claws 203L and 203R, and the difference in the claw shaft rotation speed (in normal use, the rotation speed of the rotary claw shaft is higher than the rotation speed of the puddling claw shaft. Also slow). Therefore, when the central work body 10 performs the puddling work, the rotation speed of the power transmission shaft that transmits power from the tractor to the agricultural work machine is adjusted on the tractor side. As a result of the adjustment, it is possible to make the rotation speed of the rotary claw shaft almost the same, although it is slower than the rotation speed of the puddling claw shaft.

As a specific work procedure, first, the agricultural work machine 1 is put into a folded state (FIG. 1), and rotary work is performed only with the central work body 10 at a plowing depth of, for example, 15 cm. Next, the agricultural work machine 1 is put into the deployed state (FIG. 2), and the field cultivated by the rotary work is replaced. In this case, the plowing depth is shallower than during rotary work (for example, 12 cm). The plowing depth during the puddling work is the plowing depth d in FIG. In this way, the lower end E1 of the rotation region of the rotary work portion 11 and the lower end E2 of the rotation region of the left and right puddling work portions (21L and 21R) are aligned with each other, so that the agricultural work machine 1 is in the deployed state (FIG. 2). Occasionally, when the work is performed, the effect is that the cultivation depth d after the work can be made uniform. The plowing depth during rotary work and the plowing depth during puddling work are different because the plowing depth is adjusted by vertically positioning on the tractor side.

Further, according to the present embodiment, the rotary work with a high load is performed in the folded state of the agricultural work machine 1 (FIG. 1), and the puddling work with a lower load is performed in the deployed state of the agricultural work machine 1 (FIG. 2). It has the effect of being able to do it. Therefore, it is possible to realize the functions as a high-load tillage work machine (rotary work machine) and a low-load tillage work machine (puddling work machine and surface crushing work machine) with one agricultural work machine.

The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit.

1: Agricultural work machine 10: Central work body 20L: Left work body 20R: Right work body 11: Rotary work unit 13: Input shaft 15: Transmission frame 15
16: Support frame 21L: Left shaving work part 21R: Right shaving work part 101: Rotary claw shaft 103: Tilling claw 201L: Left shaving claw shaft 201R: Right shaving claw shaft 203L: Left shaving claw 203R: Right shaving claw 23L, 23R : Switching part

Claims (1)

The first working body and
The first working body is provided with a second working body that can be switched between a folded state and an unfolded state.
The first working body has a first working portion including a first claw shaft and a first claw provided on the first claw shaft.
The second working body has a second working portion including a second claw shaft and a second claw provided on the second claw shaft.
The first rotating radius axis which is heart distance to the tip of the first pawl of the first pawl axis, the second rotation radius is the distance from the axis of the second pawl shaft to the tip of the second pawl Longer than
Wherein when in the deployed state, and the lower end of the rotation area of the lower end and the second working portions of the rotating region of the first working section are aligned with each other, agricultural machines.

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