JP7201238B2 - Plowing depth display system - Google Patents

Description

The present invention relates to an agricultural working machine. In particular, the present invention relates to agricultural implements having plowing depth indicators.

An agricultural work machine comprising a first leveling plate for leveling the cultivated soil plowed by a tillage rotor and a second leveling plate provided at the rear of the first leveling plate so as to be rotatable in the vertical direction to level the surface of the cultivated soil, for example, The puddling work machine is generally connected to the rear part of a traveling machine body via a three-point link coupling mechanism so as to be able to move up and down, and puddling work is performed while the machine advances along with the forward traveling of the traveling machine body. The raising and lowering operation of the puddling work machine is performed by a worker riding on the traveling machine body operating an operation switch provided on the traveling machine body.

When the puddling machine performs the puddling work, if there is unevenness in the plowing bed of the field, the puddling machine moves vertically as the traveling machine moves vertically, and the plowed soil plowed by the plowing rotor is moved. tillage depth changes. This change in plowing depth adversely affects the growth of rice.

Therefore, during the puddling work, a worker on the traveling machine operates the operation switch to adjust the vertical position of the puddling machine according to the unevenness of the plowing board, so that the plowing depth can be made constant. However, since the puddling work is performed by adding water to the field, there is a possibility that the actual plowing depth may be misjudged depending on the amount of water, and the plowing depth cannot be kept constant.

Therefore, the second leveling plate (leveler), which is rotatably connected to the machine body, rotates with respect to the first leveling plate (apron) according to the plowing depth of the cultivated soil plowed by the tilling rotor. There has been proposed a puddling machine equipped with a plowing depth display device having an index indicating the plowing depth according to the rotation of a rotating link mechanism (Patent Document 1). To accurately adjust the position of a tillage rotor to keep the tillage depth constant by checking the symbol indicating the tillage depth on the tillage depth display part of the tillage depth display device during puddling work by an operator. can be done.

JP 2012-205519

By the way, in the puddling work, generally, the field is filled with water, so that muddy water, mud, etc. may splash on the puddling machine during the work. 12 and 13. Symbols (“1”, “2” in FIG. 13) indicating the plowing depth in the plowing depth display unit 750 of the conventional puddling machine shown in FIGS. numbers "3" and "4"), there is a problem that the operator cannot read the symbols. Therefore, if the symbol indicating the plowing depth on the plowing depth display becomes illegible due to muddy water or mud, the operator cannot check the plowing depth indicator by the shape of the plowing depth display. end up As a result, the operator cannot confirm the index indicating the plowing depth, and the operator misunderstands the actual plowing depth depending on the amount of water, and cannot keep the plowing depth constant. Here, the term "plowing depth" refers to the distance between the surface of the ground that is not tilled and the bottom of the soil that has been tilled and dug up, and is expressed in units of "cm" or "mm". The ``indicator indicating the tillage depth'' is an index such as a symbol, a number, or a character representing the extent of the ``plowing depth'' corresponding to the ``plowing depth''. For example, as shown in FIG. Alternate numbers such as 2, 3, and 4 may be used, or gradual numbers such as 5, 10, and 15 may be used. It is only necessary to obtain a correlation with the tillage depth.

DISCLOSURE OF THE INVENTION The present invention is intended to solve the problems associated with the prior art as described above. It is there to be able to check the index.

According to one embodiment of the present invention, a machine body that rotatably supports a rotary working part that performs tillage work, a cover part that is provided on the machine body and covers the upper part of the rotary working part, and a rear end of the cover part apron for leveling the cultivated soil plowed by the rotary work unit; a potentiometer for detecting the rotation angle of the apron; and the rotation of the apron detected by the potentiometer. It is possible to provide an agricultural work machine comprising: a transmission unit that transmits information according to a movement angle; and a tillage depth display device that receives the information and displays a plurality of indices indicating different tillage depths according to the information. can.

According to another preferred aspect, a machine body that rotatably supports a rotary working part that performs tillage work, a cover part that is provided on the machine body and covers the upper part of the rotary working part, and a rear end part of the cover part: an apron arranged rotatably in the vertical direction for leveling the cultivated soil tilled by the rotary working unit; a movable link mechanism, a potentiometer rotatably provided at one end to the link mechanism for detecting a rotation angle of the link mechanism, and a rotation angle of the link mechanism detected by the potentiometer. An agricultural work machine may be provided that includes a transmission unit that transmits information according to the information, and a tillage depth display device that receives the information and displays indices indicating a plurality of different tillage depths according to the information.

According to another preferred aspect, the plowing depth display device includes a plowing depth display unit that displays an index indicating plowing depth, and the plowing depth display unit includes a plurality of plowing depth display units corresponding to the plurality of different plowing depth indicators. A farm implement may be provided characterized by having a lamp of

According to the plowing depth display device for an agricultural work machine according to the present invention, muddy water and mud do not adhere to the plowing depth display portion, and the operator can confirm the index indicating the plowing depth.

1 is a side partial structural view of a puddling machine according to an embodiment of the present invention; FIG. 1 is a partial plan view of a puddling machine according to an embodiment of the present invention; FIG. 1 is a plan view of a plowing depth display device according to an embodiment of the present invention; FIG. FIG. 4 is a side structural diagram of the puddling machine for explaining the display method of the plowing depth display unit according to the embodiment of the present invention. FIG. 4 is a side structural diagram of the puddling machine for explaining the operation of the plowing depth display device when the plowing depth is relatively shallow; FIG. 4 is a side structural diagram of the puddling machine for explaining the operation of the plowing depth display device when the plowing depth is relatively deep; FIG. 4 is a plan view of a plowing depth display device according to another embodiment of the present invention; FIG. 4 is a plan view of a plowing depth display device according to another embodiment of the present invention; FIG. 4 is a plan view of a plowing depth display device according to another embodiment of the present invention; FIG. 4 is a plan view of a plowing depth display device according to another embodiment of the present invention; FIG. 5 is a side partial structural view of a puddling machine according to another embodiment of the present invention; FIG. 11 is a partial structural view of the side surface of a puddling machine equipped with a conventional plowing depth display device. Fig. 10 is a plan view of a plowing depth display portion of a plowing depth display device of a conventional puddling machine.

An embodiment of the present invention will be described in detail below 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 this embodiment, the same parts or parts having similar functions are denoted by the same reference numerals or similar reference numerals (reference numerals followed by A, B, etc.). may be omitted. Where there are moieties 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", When both are collectively called, or even when they are called individually, there are cases where the suffix is not added. Also, the dimensional ratios in the drawings may differ from the actual ratios for the convenience of explanation, and a part of the configuration may be omitted from the drawings. Also, for convenience of explanation, the terms "upper" and "lower" are used in the description, and "upper" and "lower" respectively indicate the orientation of the working machine in the working state. Similarly, the terms "forward" and "rear" are used in the description, but "front" indicates the direction of the traveling machine that pulls the working machine with respect to the working machine, and "rear" indicates the direction of the working machine with respect to the traveling machine.

<First Embodiment>
Preferred embodiments of the present invention will now be described with reference to FIGS. 1 to 6. FIG. This embodiment will be described with an example of a puddling machine in which left and right working bodies can be folded and unfolded on both sides of a puddling machine main body. Before explaining the plowing depth display device, first, a puddling machine will be explained with reference to FIG. 1 (side structural view) and FIG. 2 (plan view).

[Configuration of puddling machine]
FIG. 1 is a partial structural diagram for explaining the configuration of a puddling machine in a working state according to one embodiment of the present invention. FIG. 2 is a partial plan view showing the overall configuration of the puddling machine in a working state according to one embodiment of the present invention. The puddling work machine 1 includes a work machine main body 100 , an extension work body 200 , a switching section 300 , a connection section 400 and a rotary work section 600 . As shown in FIGS. 1 and 2, the puddling work machine 1 is attached to the rear part of the traveling machine body 90 and moves along with the forward traveling of the traveling machine body 90 to perform puddling work. The work machine main body 100 is arranged in the central part of the direction, and the left extension work body 200L and the right extension work body 200R are attached to the left and right ends of the work machine body 200L and the right extension work body 200R so as to be rotatable in the vertical direction. It has a three-division structure with an extension work body 200L and a right extension work body 200R. Hereinafter, the left extension work body 200L and the right extension work body 200R may be collectively or singly referred to as the extension work body 200. FIG.

The work machine main body 100 has a shield cover 110, an apron 120 (first leveling board), and a leveler 130 (second leveling board).

The work machine main body 100 has a main frame 3 extending in the left-right direction, and a three-point link connecting mechanism (not shown) provided at the rear of the traveling machine body 90 is connected to the front part of the machine body 5 . mounted so as to be able to move up and down with respect to the A gearbox 6 having an input shaft 6a that protrudes forward is provided at the center of the main frame 3 in the left-right direction. Power is transmitted to the input shaft 6a.

A transmission frame (chain case) 8 and side frames are vertically installed on the left and right ends of the main frame 3, and a rotary working unit 600 with a large number of tillage tines attached rotates between the transmission frame 8 and the lower part of the side frames. freely supported. A transmission mechanism is provided in the main frame 3, and this transmission mechanism is connected to the transmission mechanism in the transmission frame 8, and the power transmitted to the input shaft 6a is transmitted to the rotary of the work machine body 100 via these transmission mechanisms. It is transmitted to the working part 600, the left extension working body 200L, and the left rotary working part 600L and the right rotary working part 600R provided in the right extending working body 200R, and the rotary working part 600 and the left extending working body 200L of the work machine body 100 are transmitted. , the left rotary working part 600L and the right rotary working part 600R provided on the right extension working body 200R are configured to rotate in a predetermined direction.

The extension work body 200 is connected to the work machine main body 100 so that the puddling work machine 1 can switch between a stored state and a working state. Here, the stowed state is a state in which the width of the working machine in the direction orthogonal to the traveling direction of the traveling machine is reduced. Specifically, a state in which the extended working body 200 is folded by rotationally moving (rotating) with respect to the working machine main body 100 is referred to as a retracted state. The working state is a state in which the working machine is extended in a direction orthogonal to the traveling direction of the traveling machine. Specifically, a state in which the extension working body 200 is rotated with respect to the work machine main body 100 from the stored state and is unfolded is referred to as a working state.

Further, the extended working body 200 has an extended shield cover 210 , an extended apron 220 and an extended leveler 230 like the working machine main body 100 . The extension shield cover 210 is provided above the tillage rotor provided corresponding to the extension working body 200 in the rotary working part 600 that rotates the working claw (not shown). The extension apron 220 is provided behind the tillage rotor and is rotatably connected to the extension shield cover 210 with the connecting portion 222 as an axis. The extension leveler 230 is provided behind the tillage rotor, and is connected to the extension apron 220 so as to be rotatable about a connecting portion 232 . The extension apron 220 is interlocked with the apron 120 to prevent the scattering of dust caused by the operation of the rotary working unit 600 from being released to the outside. Further, the extension leveler 230 is interlocked with the leveler 130 to level the soil plowed by the operation of the rotary working unit 600 .

The switching portion 300 has a control cylinder (not shown) and a connecting portion 320, and rotates the extended working body 200 with respect to the working machine main body 100 to switch between the stored state and the working state. The control cylinder has one end connected to the working machine main body 100 and the other end rotatably connected to a connecting portion 312 fixed to the extended working body 200 . The extension working body 200 is folded and switched to the stored state by contracting the control cylinder, and is unfolded and switched to the working state by extending the control cylinder.

The connecting portion 400 is attached to the leveler 130 of the work machine body 100 and the extension leveler 230 of the extension work body 200, and is attached to the apron in the rotation direction of the leveler 130 with respect to the apron 120 or in the rotation direction of the extension leveler 230 with respect to the extension apron 220. 120 and extension apron 220 relative range of motion. That is, the connecting part 400 interlocks the leveler 130 and the extension leveler 230 . The connecting portion 400 also has a locking portion 410 attached to the extension leveler 230 and a receiving portion 420 attached to the leveler 130 .

Here, the rotary working unit 600 (see FIG. 1) has a working claw (not shown), and the working claw is rotated by power transmitted to the input shaft 6a and acts on the soil to plow the soil. Or stir. In addition, in FIG. 1, the range in which the working claw rotates is shown as a rotation range 612 .

At the end of the extension leveler 230, a leveler extension 510 is provided to further increase the width of the ground that can be leveled. Leveler extension 510 is pivotally connected to extension leveler 230 . Further, the leveler extension part 510 extends (has a longitudinal direction) in a direction inclined with respect to the extension direction of the leveler 130 and the extension leveler 230 .

In addition, on the travel machine side of the shield cover 110, an earth gathering plate (not shown) is provided. The shovel plate (not shown) is attached so as to be slidable in a direction orthogonal to the traveling direction of the traveling machine. When the puddling machine 1 is in use, the shovel board (not shown) is installed in accordance with the position of the wheels of the traveling machine, etc., and reduces the step due to ruts.

[Configuration of plowing depth display device]
The plowing depth display device 50 will be described with reference to FIG. FIG. 3 is a plan view of a plowing depth display device according to one embodiment of the present invention. The cultivation depth display device 50 includes a cultivation depth display section 51 and a reception section 52 . Further, the plowing depth display device 50 is a remote controller. Therefore, the operator can hold the tillage depth display device 50 and get on the traveling machine body 90 . The tillage depth display unit 51 displays an index indicating the tillage depth. In this example, the plowing depth display unit 51 has 11 LEDs (lamps). Above the top LED of the 11 LEDs is the word "deep". On the other hand, among the 11 LEDs, there is a description of "shallow" under the lowest LED. "Deep" means deep tillage, and "shallow" means shallow tillage. In this example, since there are 11 LEDs, there are 11 plowing depth stages. The number of stages of plowing depth is not limited to 11 stages, and may be two or more. Also, the color of the LED may be any color. Furthermore, the colors of the 11 LEDs may all be the same color, all may be different colors, or a plurality of LEDs may be the same color.

Thus, the plowing depth display device 50 is a remote controller. Therefore, the operator can hold the tillage depth display device 50 and get on the traveling machine body 90 . The plowing depth display device 50 is usually placed near the operator's boarding position of the traveling machine body 90 . Therefore, there is no possibility that muddy water or mud will adhere to the tillage depth display portion 51 of the tillage depth display device 50 . Therefore, according to the present embodiment, muddy water and mud do not adhere to the plowing depth display section, and the operator can confirm the index indicating the plowing depth. Further, since the plowing depth display device 50 is located near the operator, the operator can check the plowing depth without looking back during the work. Furthermore, since the LED lights up, it is possible to check the index indicating the plowing depth even in a dark environment such as at night.

It should be noted that pressing the "puddling" button of the "leveler shoveling" button shown in FIG. Further, pressing the "close" button of the "extension leveler" button closes the extension leveler, and pressing the "open" button opens the extension leveler. Further, when the "close" button of the "working machine" button is pressed, the working machine is closed, and when the "open" button is pushed, the working machine is opened.

[How to display the plowing depth display]
Here, the display method of the plowing depth display unit 51 will be described. FIG. 4 is a side structural diagram of the puddling machine for explaining the display method of the plowing depth display unit according to the embodiment of the present invention. A mounting portion 44 is mounted on the apron 120 , and a link mechanism portion 42 is rotatably provided on one end side of the mounting portion 44 . However, the link mechanism part 42 may be attached directly on the apron 120 . Further, the other end side of the link portion mechanism portion 42 is rotatably connected to the potentiometer 70 .

When the apron 120 rotates vertically, the link mechanism portion 41 rotates vertically about the shaft portion 42 as a rotation fulcrum. As the plowing depth increases, the apron 120 rotates upward. When the apron 120 rotates upward, the link mechanism portion 42 rotates upward. When the link mechanism 42 rotates upward, the potentiometer 70 rotates clockwise as viewed in FIG. When the potentiometer 70 rotates clockwise in FIG. 4, the resistance of the potentiometer 70 changes, and this change is taken out as a voltage change and input to a control box 80 including a transmitter. The voltage change value input to the control box 80 is converted into a digital signal, wirelessly transmitted to the tillage depth display device 50 , and received by the receiver 52 . Then, the plowing depth display device 50 lights the LED corresponding to this digital signal.

On the other hand, when the apron 120 rotates downward, the link mechanism portion 42 rotates downward. When the link mechanism 42 rotates downward, the potentiometer 70 rotates counterclockwise in FIG. When the potentiometer 70 rotates in the counterclockwise direction as viewed in FIG. 4, the resistance of the potentiometer 70 changes and this change is taken as a voltage change and input to the control box containing the transmitter. The voltage change value input to the control box is converted into a digital signal, wirelessly transmitted to the cultivation depth display device 50, and received by the receiver 52. FIG. Then, the plowing depth display device 50 lights the LED corresponding to this digital signal.

In the present embodiment, the digital signal is wirelessly transmitted to the cultivation depth display device 50, but it is not limited to wireless transmission, and may be transmitted by wire.

Next, the relationship between the index indicated by the tillage depth display unit 51 of the tillage depth display device 50 and the tillage depth D of the cultivated soil by the rotary work unit 600 will be described with reference to FIGS. 5 and 6. FIG. As shown in FIG. 5, the plowing depth display device 50 displays the apron 120 at an angle .theta. θ=approximately 44°). As the apron 120 rotates, the leveler 130 rotates with respect to the apron 120, and the leveler 130 has an angle α (α=approximately 136° in the drawing) with respect to the apron 120, and is positioned on the field surface. be grounded. Further, the link mechanism portion 41 rotates in the vertical direction as the apron 120 rotates, and the potentiometer 70 rotates as the link mechanism portion 41 rotates. Then, as described above, as the potentiometer 70 rotates, the LED corresponding to the plowing depth lights up.

On the other hand, when the plowing depth D is relatively deep (D=approximately 200 mm in the drawing), as shown in FIG. It is inclined with respect to the field surface at an angle θ' smaller than the angle θ (θ'=approximately 23° in the drawing). As the apron 120 rotates, the leveler 130 contacts the field surface at an angle α' (α'=approximately 157° in the drawing) with respect to the apron 120 . Further, the link mechanism portion 41 rotates in the vertical direction as the apron 120 rotates, and the potentiometer 70 rotates as the link mechanism portion 41 rotates. Then, as described above, as the potentiometer 70 rotates, the LED corresponding to the plowing depth lights up.

In this manner, in the plowing depth display device 50 of the present invention, the apron 120 rotates according to the plowing depth D, and the link mechanism portion 41 rotates vertically as the apron 120 rotates. to rotate the potentiometer 70. As the potentiometer 70 rotates, the LED corresponding to the plowing depth lights up. Furthermore, the plowing depth display device 50 is normally located near the operator who boarded the traveling machine body 90 . Therefore, the operator can confirm the degree of tillage depth by confirming which LED of the tillage depth display section 51 of the tillage depth display device 50 is lit. Therefore, when the lighting of the LED shifts to the character side of "deep" during the puddling work, the operator lifts the puddling machine 1 via the three-point link connection mechanism so that the plowing depth becomes shallow. to operate. During puddling work, when the lighting of the LED shifts to the character side of "shallow", the operator lowers the puddling machine 1 via the three-point link connecting mechanism so as to deepen the plowing depth. operate. Therefore, the plowing depth during the puddling work can be kept constant.

<Comparative example>
FIG. 12 is a side structural diagram of a puddling machine equipped with a conventional plowing depth display device. FIG. 13 is a plan view of a plowing depth display portion of a plowing depth display device of a conventional puddling machine. The display plate of the conventional plowing depth display unit has the characters "earth pile" and the numbers "1", "2", "3", and "4" representing the degree of plowing depth. Then, when the plowing depth changes, the pointer arm moves, and the index indicating the plowing depth indicated by the pointer changes. Therefore, the operator was able to confirm the degree of plowing depth by confirming the symbol indicated by the pointer. However, the position of the plowing depth display device 750 is a place where muddy water and mud may splash and adhere. Therefore, if muddy water or mud adheres to the number, which is an index indicating the plowing depth, the operator will not be able to read the number itself. As a result, the operator cannot confirm the degree of plowing depth, and the operator misjudges the actual plowing depth depending on the amount of water, which makes it impossible to keep the plowing depth constant. In addition, since the plowing depth display device 750 is located behind the worker who is working, the worker cannot see the plowing depth display device 750 without looking back, which is inconvenient. .

<Second embodiment>
FIG. 7 is a plan view of a plowing depth display device according to another embodiment of the present invention. The tillage depth display device 50A has almost the same configuration as the tillage depth display device 50 of the first embodiment, but differs from the first embodiment in that it has a tillage depth display section 51A. Here, descriptions of overlapping points are omitted, and only different points are described.

The plowing depth display section 51A is a liquid crystal. The tillage depth display section 51A displays the number of rectangles corresponding to the tillage depth. In this example, when the plowing depth is shallow, the number of rectangles is small, and when the plowing depth is deep, the number of rectangles is large. However, the display method is not limited to a rectangle, and any shape may be used. The plowing depth display unit 51A may be an LCD (Liquid Crystal Display) or an organic EL display, and may be anything as long as it can display a plowing depth.

In this embodiment, similarly to the first embodiment, the plowing depth display device 50A is normally placed near the operator's boarding position of the traveling machine body 90 . Also, the liquid crystal has a certain degree of brightness. Therefore, this embodiment also has the same effects as those described in the first embodiment.

<Third Embodiment>
FIG. 8 is a plan view of a plowing depth display device according to another embodiment of the present invention. The tillage depth display device 50B has almost the same configuration as the tillage depth display device 50A of the second embodiment, but differs from the second embodiment in that the display of the tillage depth display unit 51B is characters. Here, descriptions of overlapping points are omitted, and only different points are described.

The plowing depth display section 51B is a liquid crystal. The tillage depth display section 51B displays a number corresponding to the tillage depth. In this example, when the plowing depth is shallow, a number close to "1" is displayed, and when the plowing depth is deep, a larger number is displayed. In this example, numbers are displayed, but the number is not limited to this, and letters such as alphabets may be used.

In this embodiment, similarly to the first embodiment and the second embodiment, the plowing depth display device 50B is normally placed near the operator's boarding position of the traveling machine body 90 . Also, the liquid crystal has a certain degree of brightness. Therefore, this embodiment also has the same effects as those described in the first embodiment.

<Fourth Embodiment>
FIG. 9(a) is a plan view of a plowing depth display device according to another embodiment of the present invention. The plowing depth display device 50C is a GPS guide monitor in this example, and is attached to the traveling machine body 90 . Here, descriptions of overlapping points are omitted, and only different points are described.

The plowing depth display section 51C is a liquid crystal. The tillage depth display unit 51C displays a figure corresponding to the tillage depth. In this example, when the plowing depth is shallow, the number of rectangles is small, and when the plowing depth is deep, the number of rectangles is large. However, the display method is not limited to a rectangle, and any shape may be used. The plowing depth display device 50</b>C may be attached to the traveling machine body 90 .

In this embodiment, similarly to the first to third embodiments, the plowing depth display device 50C is normally placed near the operator's boarding position of the traveling machine body 90 . Also, the liquid crystal has a certain degree of brightness. Therefore, this embodiment also has the same effects as those described in the first embodiment.

<Fifth Embodiment>
FIG. 9(b) is a plan view of a plowing depth display device according to another embodiment of the present invention. The cultivation depth display device 50D has almost the same configuration as the cultivation depth display device 50C of the fourth embodiment, but differs from the fourth embodiment in that the display of the cultivation depth display device D is characters. Here, descriptions of overlapping points are omitted, and only different points are described.

The plowing depth display section 51D is a liquid crystal. The tillage depth display section 51D displays a number corresponding to the tillage depth. In this example, when the plowing depth is shallow, a number close to "1" is displayed, and when the plowing depth is deep, a larger number is displayed. In this example, numbers are displayed, but the number is not limited to this, and letters such as alphabets may be used.

Also in this embodiment, similarly to the first to fourth embodiments, the plowing depth display device 50D is normally placed near the operator's boarding position of the traveling machine body 90 . Also, the liquid crystal has a certain degree of brightness. Therefore, this embodiment also has the same effects as those described in the first embodiment.

<Sixth Embodiment>
FIG. 10 is a plan view of a plowing depth display device according to another embodiment of the present invention. The tillage depth display device 50E has almost the same configuration as the tillage depth display device 50D of the fifth embodiment, but differs from the fifth embodiment in that the display of the tillage depth display device D is an image. Here, descriptions of overlapping points are omitted, and only different points are described.

The plowing depth display section 51E is a liquid crystal. The tillage depth display unit 51E displays an image corresponding to the tillage depth. In this example, when the plowing depth is shallow, an image showing the plowing depth of the puddling machine is shallow is displayed, and when the plowing depth is deep, an image showing the plowing depth of the puddling machine is deep is displayed.

Also in this embodiment, similarly to the first to fifth embodiments, the plowing depth display device 50E is normally placed near the operator's boarding position of the traveling machine body 90 . Also, the liquid crystal has a certain degree of brightness. Therefore, this embodiment also has the same effects as those described in the first embodiment.

In addition, from the fourth embodiment to the sixth embodiment, it has been explained that the cultivation depth display device is a liquid crystal display device, but this liquid crystal display device may be installed in a traveling machine body, or may be a smartphone, a tablet terminal, or the like. It does not have to be installed on the traveling body like .

<Seventh Embodiment>
FIG. 11 is a side partial structural view of a puddling machine according to another embodiment of the present invention. This embodiment is generally the same as the first embodiment. Therefore, only points different from the first embodiment will be described in detail.

This embodiment differs from the first embodiment in that the potentiometer 70A is directly provided on the rotational axis of the apron 120. FIG. Since the potentiometer 70A is directly provided on the rotation axis of the apron 120, the seventh embodiment does not have the link mechanism part 41 and the attachment part 42 of the first embodiment. Potentiometer 70A rotates as apron 120 rotates. Therefore, potentiometer 70A can detect the rotation angle of apron 120 .

Also in this embodiment, similarly to the first embodiment, the plowing depth display device is usually placed near the operator's boarding position of the traveling machine body. Therefore, this embodiment also has the same effects as those described in the first embodiment.

It is also possible to apply the plowing depth display devices of the second to sixth embodiments to the puddling machine of the seventh embodiment.

Although the first to seventh embodiments have been described using a puddling machine, the application of the plowing depth display device of the present invention is not limited to the puddling machine, and may be other agricultural machines. . For example, even in a rotary work machine that is an agricultural work machine that does not include a leveler, such as the puddling machine 1, if the structure is such that the link mechanism rotates with the rotation of the apron, the plowing depth of the present invention can be increased. A display device is applicable.

Moreover, the present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the invention.

1, 7: Plowing work machine 3: Main frame 5: Machine body 6: Gear box 6a: Input shaft 8: Transmission frame 9: Hitch 41: Link mechanism part 42: Rotation fulcrum 44: Mounting part
50, 50A, 50B, 50C, 50D, 50E: cultivation depth display devices 51, 51A, 51B, 51C, 51D, 51E: cultivation depth display units 52, 52A, 52B, 52C, 52D, 52E: reception unit 70: potentiometer 80 : Control box 90: Running body
100: Work machine body 110: Shield cover 120: Apron
130: Leveler 140: Rake
200: Extension working body 230: Extension leveler 300: Switching part 400: Connection part 600: Rotary working part 703: Main frame 706: Gear box 706a: Input shaft 711: Apron 712: Leveler 713: Rotary working part 740: Plowing depth display Device 741: Link mechanism part 742: Swing arms 743, 756: Shaft part 744: Connecting rod 750: Plowing depth display part 751: Display plate 757: Pointer 759: Guide plate

Claims (1)

A plowing depth display system including an agricultural machine and a mobile terminal that displays an image showing the plowing depth of the agricultural machine,
The agricultural machine is
a rotary work unit for tillage work;
a cover part that covers the upper part of the rotary working part;
a ground leveling member disposed at the rear end of the cover part so as to be vertically rotatable and leveling the cultivated soil tilled by the rotary working part;
a detection unit that detects a rotation angle of the ground leveling member according to the plowing depth ;
a transmission unit configured to transmit information corresponding to the rotation angle of the ground leveling member detected by the detection unit to the mobile terminal ;
The image showing the plowing depth of the agricultural working machine shows the side structure of the agricultural working machine, in which the rotation angle of the ground leveling member with respect to the field changes as the plowing depth of the agricultural working machine corresponding to the information changes. A plowing depth display system that is an image.

Images