JP7427495B2 - transplant machine - Google Patents

Description

The present invention relates to a transplanting machine such as a riding rice transplanter.

A scraping amount adjustment shaft that is arranged so as to be rotatable along the left-right direction and changes the amount of scraping of seedlings according to the rotation operation; A transplanter is known that is equipped with a planting depth adjustment shaft that changes the planting depth of seedlings according to Since the rotation operation was based on the , adjustment work was time-consuming and there was room for improvement.

Therefore, Patent Document 1 proposes a riding rice transplanter in which a scraping amount adjustment shaft and a planting depth adjustment shaft can be rotated by actuators. According to such a riding rice transplanter, it is possible to improve the workability of adjusting the amount of scraping of seedlings and adjusting the planting depth.

Japanese Patent Application Publication No. 2017-55704

However, the scraping amount adjustment mechanism and the planting depth adjustment mechanism shown in Patent Document 1 each include a motor as an actuator, a gear member that rotates by the drive of the motor, and a gear member that connects the adjustment shaft. Since it includes link members and the like, it not only becomes large, but also has the risk of being difficult to install in a transplanter where space cannot be secured.

The present invention was created with the aim of solving these problems in view of the above-mentioned circumstances, and the invention of claim 1 provides a seedling mounting stand on which seedlings are placed, and the seedling mounting stand. A planting mechanism that scrapes seedlings from the ground and plants them in the field, a scraping amount adjustment shaft that is arranged so as to be rotatable along the left and right directions and changes the amount of seedlings scraped according to the rotational operation, and A transplanter comprising a planting depth adjustment shaft which is arranged rotatably along the axis and which changes the planting depth of seedlings in accordance with the rotational operation of the shaft, a motor for adjusting the amount of scraping; A scraping amount adjusting gear member that rotates according to the drive of the scraping amount adjusting motor, and a scraping that rotates the scraping amount adjusting shaft according to the rotation of the scraping amount adjusting gear member. a link member for adjusting the amount, a motor for adjusting the planting depth, a gear member for adjusting the planting depth that rotates in accordance with the drive of the motor for adjusting the planting depth, and the gear for adjusting the planting depth. A link member for adjusting the planting depth that rotates the planting depth adjusting shaft in accordance with the rotation of the member, the motor for adjusting the amount of scraping, the gear member for adjusting the amount of scraping, and the planting depth. The base further includes an adjustment motor and a base that supports the planting depth adjustment gear member, and the scraping amount adjustment motor and the scraping amount adjustment gear member are mounted on either the left or right side of the base. The planting depth adjusting motor and the planting depth adjusting gear member are arranged on the other side of the base, and the scraping amount adjusting link member is arranged on the other side of the base, and the scraping amount adjusting link member is The link member for adjusting the planting depth is arranged within the horizontal width of the motor for adjusting the planting depth, and the link member for adjusting the planting depth is arranged within the horizontal width of the motor for adjusting the amount of scraping. The plant further includes a scraping amount adjustment potentiometer that detects a position, and a planting depth adjustment potentiometer that detects a rotational position of the planting depth adjustment gear member, and the scraping amount adjustment potentiometer includes: disposed within the left and right width of the scraping amount adjustment motor,
The transplanting machine is characterized in that the planting depth adjustment potentiometer is disposed within the left and right width of the planting depth adjustment motor .
The invention according to claim 2 further includes wiring for adjusting the amount of scraping connected to the motor for adjusting the amount of scraping, and wiring for adjusting the planting depth connected to the motor for adjusting the planting depth. 2. The transplanting machine according to claim 1 , wherein at least a portion of the scraping amount adjustment wiring and the planting depth adjustment wiring are arranged within the horizontal width of the base.

According to the invention of claim 1, the motor for adjusting the amount of scraping and the gear member for adjusting the amount of scraping are arranged on either the left or right side of the base, and the motor for adjusting the planting depth and the gear member for adjusting the planting depth The gear member for adjusting the planting depth is arranged on the other side of the base, the link member for adjusting the amount of scraping is arranged within the left and right width of the motor for adjusting the amount of scraping, and the link member for adjusting the planting depth is Since it is disposed within the left and right width of the planting depth adjustment motor, the mechanism for adjusting the amount of seedling scraping and the planting depth using the power of the motor can be configured compactly.
Furthermore, the scraping amount adjustment potentiometer is placed within the left and right width of the scraping amount adjustment motor, and the planting depth adjustment potentiometer is placed within the left and right width of the planting depth adjustment motor. The mechanism for adjusting the amount of seedlings to be scraped and the planting depth using the power can be configured more compactly.
According to the invention of claim 2 , since at least a part of the wiring for adjusting the amount of scraping and the wiring for adjusting the planting depth are arranged within the left and right width of the base, the amount of scraping and the planting depth of the seedlings can be adjusted by the power of the motor. The mechanism for adjusting the planting depth can be configured more compactly.

1 is an overall perspective view of a riding rice transplanter according to an embodiment of the present invention. It is an overall perspective view of a planting work machine. It is a front perspective view of the main part of a planting work machine. It is a front perspective view of the principal part of the planting work machine, showing a state in which the cover is removed and the scraping amount adjustment mechanism and the planting depth adjustment mechanism are exposed. It is a main part front perspective view of the planting work machine which shows the state where the scraping amount adjustment mechanism and the planting depth adjustment mechanism are removed and the base is exposed. It is a rear perspective view of the principal part of the planting work machine which shows the scraping amount adjustment mechanism and the planting depth adjustment mechanism. It is a principal part front view of the planting working machine which shows a scraping amount adjustment mechanism and a planting depth adjustment mechanism. It is a principal part rear view of the planting work machine which shows a scraping amount adjustment mechanism and a planting depth adjustment mechanism. It is a principal part top view of the planting work machine which shows a scraping amount adjustment mechanism and a planting depth adjustment mechanism.

Embodiments of the present invention will be described below based on the drawings. In FIG. 1, 1 is a riding rice transplanter (transplanting machine), and the riding rice transplanter 1 is connected to a traveling body 2 and a rear part of the traveling body 2 via an elevating link mechanism 3 (see FIG. 2). A planting work machine 4 is provided.

The traveling body 2 is equipped with a planting PTO shaft (not shown) that outputs planting power, and the power output from this is transmitted to the planting work via a bendable transmission shaft 4a with a universal joint interposed therebetween. The power is transmitted to machine 4.

As shown in FIGS. 2 to 9, the planting machine 4 includes a horizontal frame 5 extending in the left-right direction, a seedling platform 6 on which mat seedlings are placed, and a plurality of planting machines extending rearward from the horizontal frame 5. A case (not shown), a planting mechanism (not shown) provided at the rear end of each planting case, an apron 7 arranged at the lower end of the seedling platform 6, and rotatable along the left and right directions. The scraping amount adjustment shaft 8 and the planting depth adjustment shaft 9 that are arranged, the float 10 that is arranged to be able to swing up and down at the bottom of the planting work machine 4, and the scraping amount adjustment shaft 8 are rotated by motor power. The planting depth adjustment mechanism 12 includes a scraping amount adjustment mechanism 11 that rotates the planting depth adjustment shaft 9 using motor power, and the like. In addition, in the drawings, the member indicated by the reference numeral 13 is a soil leveling device that levels the rice field in front of the planting mechanism, and the member indicated by the reference numeral 14 is a removable member that covers the scraping amount adjustment mechanism 11 and the planting depth adjustment mechanism 12. It's a great cover.

The horizontal frame 5 is a square cylindrical frame member disposed along the left-right direction of the planting work machine 4, and is connected to the rear end of the lifting link mechanism 3 via a rolling shaft 15 that projects forward from the left-right center position. It is connected and supported by the section so that it can roll left and right.

The seedling mounting table 6 has a seedling mounting surface that is inclined to be high in the front and low in the rear, and is disposed above the planter case so as to be able to slide left and right, and is moved laterally in the left and right reciprocating directions by a lateral feed mechanism (not shown).

The planting mechanism scrapes the mat seedlings on the seedling stand 6 through a scraping opening 7a formed in the apron 7 and plants them in the field.

The vertical position of the apron 7 can be changed, and the amount of seedlings scraped by the planting mechanism is adjusted based on this vertical position change. Specifically, changing the position of the apron 7 to the lower side increases the amount of seedlings scraped by the planting mechanism, while changing the position of the apron 7 to the upper side increases the amount of seedlings scraped by the planting mechanism. Decrease. The apron 7 is interlocked and connected to a scraping amount adjusting shaft 8 via an interlocking connection mechanism (not shown), and its vertical position is changed in response to rotation of the scraping amount adjusting shaft 8.

The float 10 includes a center float (not shown) disposed at the center in the left-right direction, and left and right side floats 10 disposed on both left and right sides of the center float. The center float and side floats 10 level the soil at the planting position by sliding on the rice field while swinging up and down using a swing shaft (not shown) as a fulcrum. The center float also functions as a sensing float that senses the height of the planting machine 4 with respect to the rice field. In other words, the center float is connected to a hydraulic lifting mechanism (not shown) on the traveling machine body 2 side via a connecting mechanism (not shown), and the hydraulic lifting mechanism moves the planting machine 4 according to the vertical movement of the center float. By automatically moving up and down, the height of the planting work machine 4 relative to the rice field is kept substantially constant.

As shown in FIG. 6, the planting depth adjustment shaft 9 includes a plurality of float support arms 9a extending rearward and downward, and each float support arm 9a supports a center float and a The side float 10 is supported so as to be able to swing up and down. When the planting depth adjustment shaft 9 is rotated, the float support arm 9a is rotated up and down, and the positions of the pivot shafts of the center float and the side floats 10 are changed in the up and down direction. As a result, the height of the planting machine 4 relative to the rice field surface is changed, and the planting depth of the seedlings by the planting mechanism is adjusted.

The scraping amount adjustment mechanism 11 includes a scraping amount adjusting motor 21, a scraping amount adjusting gear member 22 that rotates in accordance with the drive of the scraping amount adjusting motor 21, and a scraping amount adjusting gear member 22. a scraping amount adjusting link member 23 that rotates the scraping amount adjusting shaft 8 in accordance with the rotation of the scraping amount adjusting link member 23, and a scraping amount adjusting potentiometer 24 that detects the rotational position of the scraping amount adjusting gear member 22; Equipped with When the scraping amount adjusting motor 21 is driven, the scraping amount adjusting shaft 8 is rotated via the scraping amount adjusting gear member 22 and the scraping amount adjusting link member 23, and the seedling scraper of the planting mechanism is rotated. The amount taken will be changed.

The scraping amount adjusting motor 21 and the scraping amount adjusting potentiometer 24 are electrically connected to a control device (not shown) provided on the traveling body 2 side. The control device inputs an operation signal from a scraping amount adjustment operation tool (not shown) disposed near the driver's seat of the traveling body 2, and drives the scraping amount adjustment motor 21 in accordance with the operation signal. . For example, the control device stores in advance the detected value of the scraping amount adjustment potentiometer 24 when setting the scraping amount upper limit and when scraping amount lower limit is set, and divides the stored detected value range into (N-1) equal parts ( For example, by dividing into 9 equal parts), the amount of scraping can be adjusted in N stages (for example, 10 stages).

The planting depth adjustment mechanism 12 includes a planting depth adjustment motor 31, a planting depth adjustment gear member 32 that rotates in accordance with the drive of the planting depth adjustment motor 31, and a planting depth adjustment motor 31. A planting depth adjustment link member 33 that rotates the planting depth adjustment shaft 9 in accordance with the rotation of the adjustment gear member 32, and a planting depth adjustment link member 33 that detects the rotational position of the planting depth adjustment gear member 32. A potentiometer 34 for adjusting the attachment depth is provided. When the planting depth adjustment motor 31 is driven, the planting depth adjustment shaft 9 is rotated via the planting depth adjustment gear member 32 and the planting depth adjustment link member 33, and the planting depth adjustment shaft 9 is rotated through the planting depth adjustment gear member 32 and the planting depth adjustment link member 33. The planting depth of the mechanism has been changed.

The planting depth adjustment motor 31 and the planting depth adjustment potentiometer 34 are electrically connected to the above-mentioned control device. The control device inputs an operation signal from a planting depth adjustment operation tool (not shown) disposed near the driver's seat of the traveling body 2, and operates the planting depth adjustment motor 31 in accordance with the operation signal. drive. For example, the control device stores in advance the detected values of the planting depth adjustment potentiometer 34 when setting the upper limit of the planting depth and when setting the lower limit of the planting depth, and also sets the stored detected value range to (M-1). By dividing into equal parts (eg, 4 equal parts), planting depth adjustment in M stages (eg, 5 stages) is realized.

The scraping amount adjustment motor 21 and the planting depth adjustment motor 31 of this embodiment have a motor and a speed reduction mechanism inside, and output the reduced motor power from an output gear (not shown).

The gear member 22 for adjusting the amount of scraping and the gear member 32 for adjusting the planting depth of the present embodiment are sector gears that rotate in the vertical direction using gear shafts 22a, 32a along the left-right direction as fulcrums, and adjust the amount of scraping. The gear member 22 meshes with the output gear of the scraping amount adjustment motor 21, and the planting depth adjustment gear member 32 meshes with the output gear of the planting depth adjustment motor 31.

The link member 23 for adjusting the amount of scraping and the link member 33 for adjusting the planting depth of the present embodiment are joint plates having an F-shape in side view. The front end of the scraping amount adjusting link member 23 is connected to an engagement pin 22b protrudingly provided on the scraping amount adjusting gear member 22 via a long hole (not shown), and the scraping amount adjusting link member 23 The rear end portion of the member 23 is connected to a connecting portion 8b provided on the scraping amount adjusting shaft 8 side. Further, the front end of the planting depth adjustment link member 33 is connected to an engagement pin 32b protruding from the planting depth adjustment gear member 32 via a long hole (not shown). The rear end portion of the depth adjustment link member 33 is connected to a connection portion 9b provided on the planting depth adjustment shaft 9 side.

The scraping amount adjustment potentiometer 24 and the planting depth adjustment potentiometer 34 of this embodiment include detection arms 24a and 34a connected to a detection shaft (not shown). The detection arm 24a of the scraping amount adjustment potentiometer 24 engages with the engagement pin 22b of the scraping amount adjustment gear member 22, thereby converting the rotational position information of the scraping amount adjustment gear member 22 into the scraping amount. Input to the adjustment potentiometer 24. Furthermore, the detection arm 34a of the planting depth adjustment potentiometer 34 engages with the engagement pin 32b of the planting depth adjustment gear member 32, thereby adjusting the rotational position of the planting depth adjustment gear member 32. The information is input to the planting depth adjustment potentiometer 34.

Next, the arrangement of the scraping amount adjustment mechanism 11 and the planting depth adjustment mechanism 12 will be explained with reference to FIGS. 2 to 9.

The scraping amount adjustment mechanism 11 and the planting depth adjustment mechanism 12 are supported by the base 40. The base 40 includes a fixing part 41 fixed to the horizontal frame 5, a pair of left and right motor brackets 42 and 43 extending forward and upward from the fixing part 41, and a connecting plate 44 connecting the left and right motor brackets 42 and 43. , potentio brackets 45 and 46 provided at the upper end of each motor bracket 42 and 43. The left and right motor brackets 42 and 43 are plate members extending in the up-down direction and the front-back direction, and are arranged in parallel at a predetermined interval in the left-right direction.

The scraping amount adjustment motor 21 and the scraping amount adjustment gear member 22 are arranged on either the left or right side of the base 40, and the planting depth adjustment motor 31 and the planting depth adjustment gear member 32 are arranged on either the left or right side of the base 40. , are arranged on either the left or right side of the base 40.

For example, in this embodiment, the scraping amount adjusting motor 21 is attached to the upper end of the right side of the right motor bracket 43, and the scraping amount adjusting gear member is attached to the lower end of the right side of the right motor bracket 43 via the gear shaft 22a. 22, the planting depth adjusting motor 31 is attached to the upper end of the left side of the left motor bracket 42, and the planting depth adjusting gear member 32 is attached to the lower end of the left side of the left motor bracket 42 via the gear shaft 32a. is installed.

A scraping amount adjusting link member 23 is connected to the scraping amount adjusting gear member 22 via an engaging pin 22b, and a planting depth adjusting link member 23 is connected to the planting depth adjusting gear member 32 via an engaging pin 32b. A height adjustment link member 33 is connected. At this time, the scraping amount adjustment link member 23 is arranged within the horizontal width of the scraping amount adjustment motor 21, and the planting depth adjustment link member 33 is arranged within the horizontal width of the planting depth adjustment motor 31. placed within. According to such an arrangement, not only can the scraping amount adjustment mechanism 11 and the planting depth adjustment mechanism 12 be supported by one base 40, but also the scraping can be performed while suppressing the protrusion of the link members 23 and 33 in the left-right direction. The amount adjustment mechanism 11 and the planting depth adjustment mechanism 12 can be configured compactly.

The scraping amount adjusting potentiometer 24 is attached to the upper end of the right side of the right motor bracket 43 via a potentiometer bracket 46, and the planting depth adjusting potentiometer 34 is attached to the upper end of the left side of the left motor bracket 42. It is attached via a potentio bracket 45.

At this time, the scraping amount adjustment potentiometer 24 is arranged within the horizontal width of the scraping amount adjustment motor 21, and the planting depth adjustment potentiometer 34 is arranged within the horizontal width of the planting depth adjustment motor 31. Placed. According to such an arrangement, the protrusion of the potentiometers 24 and 34 in the left-right direction can be suppressed, and the scraping amount adjustment mechanism 11 and the planting depth adjustment mechanism 12 can be configured more compactly.

Further, the scraping amount adjustment mechanism 11 is connected to a scraping amount adjusting motor wiring 25 (wiring for scraping amount adjustment) connected to the scraping amount adjusting motor 21 and a scraping amount adjusting potentiometer 24. The planting depth adjustment mechanism 12 includes a planting depth adjustment motor wiring 35 (a planting depth adjustment motor wiring 35 connected to the planting depth adjustment motor 31). (wiring for adjusting the planting depth) and a potentiometer wiring 36 for adjusting the planting depth connected to the potentiometer 34 for adjusting the planting depth.

The other ends of these wirings 25, 26, 35, and 36 are routed along the horizontal frame 5 and rolling shaft 15 to the traveling body 2 side, and are connected to the aforementioned control device. At this time, at least some of the wirings 25, 26, 35, and 36 are arranged within the horizontal width of the base 40. For example, the wires 25, 26, 35, and 36 are drawn out to the horizontal frame 5 side through the space S formed between the left and right motor brackets 42 and 43. According to such an arrangement, not only can the protrusion of the wirings 25, 26, 35, and 36 in the left-right direction be suppressed to make the scraping amount adjustment mechanism 11 and the planting depth adjustment mechanism 12 more compact, but also the base 40 can be configured more compactly. The wirings 25, 26, 35, and 36 can be protected using this.

According to the present embodiment configured as described above, the seedling platform 6 on which the seedlings are placed, the planting mechanism that scrapes the seedlings from the seedling platform 6 and plants them in the field, and the planting mechanism that rotates along the left and right direction. A scraping amount adjusting shaft 8 is arranged so as to be rotatable in the horizontal direction and changes the amount of scraping of seedlings according to the rotation operation. A riding rice transplanter 1 includes a planting depth adjustment shaft 9 for changing the planting depth, a scraping amount adjustment motor 21, and a scraper that rotates in accordance with the drive of the scraping amount adjustment motor 21. A removal amount adjustment gear member 22, a removal amount adjustment link member 23 that rotates the removal amount adjustment shaft 8 in accordance with rotation of the removal amount adjustment gear member 22, and a planting depth adjustment motor. 31, a planting depth adjustment gear member 32 that rotates according to the drive of the planting depth adjustment motor 31, and a planting depth adjustment according to the rotation of the planting depth adjustment gear member 32. A planting depth adjustment link member 33 that rotates the shaft 9, a scraping amount adjustment motor 21, a scraping amount adjustment gear member 22, a planting depth adjustment motor 31, and a planting depth adjustment gear. It further includes a base 40 that supports the member 32, and the scraping amount adjusting motor 21 and the scraping amount adjusting gear member 22 are arranged on either the left or right side of the base 40, and the scraping amount adjusting motor 21 and the scraping amount adjusting gear member 22 are arranged on either the left or right side of the base 40, and are used for adjusting the planting depth. The motor 31 and the gear member 32 for adjusting the planting depth are arranged on the other side of the base 40, and the link member 23 for adjusting the amount of scraping is arranged within the left and right width of the motor 21 for adjusting the amount of scraping. Since the link member 33 for adjusting the planting depth is arranged within the left and right width of the motor 31 for adjusting the planting depth, the mechanism for adjusting the amount of seedling scraping and the planting depth using motor power can be made compact. It can be configured as follows.

Further, a scraping amount adjustment potentiometer 24 detects the rotational position of the scraping amount adjustment gear member 22, and a planting depth adjustment potentiometer 34 detects the rotational position of the planting depth adjustment gear member 32. The scraping amount adjustment potentiometer 24 is disposed within the left and right width of the scraping amount adjustment motor 21, and the planting depth adjustment potentiometer 34 is arranged within the left and right width of the planting depth adjustment motor 31. Since it is arranged within the width, the mechanism that uses motor power to adjust the amount of seedling scraping and the planting depth can be configured more compactly.

Further, it further includes a scraping amount adjustment motor wiring 25 connected to the scraping amount adjustment motor 21, and a planting depth adjustment motor wiring 35 connected to the planting depth adjustment motor 31, At least a part of the motor wiring 25 for adjusting the amount of scraping and the motor wiring 35 for adjusting the planting depth are arranged within the left and right width of the base 40, so the amount of scraping and the planting depth of the seedlings can be controlled by the motor power. The adjustment mechanism can be configured more compactly.

1 Riding rice transplanter 2 Traveling body 4 Planting work machine 6 Seedling platform 8 Scraping amount adjustment shaft 9 Planting depth adjustment shaft 11 Scraping amount adjustment mechanism 12 Planting depth adjustment mechanism 21 Scraping amount adjustment motor 22 Gear member for adjusting scraping amount 23 Link member for adjusting scraping amount 24 Potentiometer for adjusting scraping amount 25 Motor wiring for adjusting scraping amount 26 Potentiometer wiring for adjusting scraping amount 31 Motor for adjusting planting depth 32 Planting depth Gear member 33 for adjusting planting depth Link member 34 for adjusting planting depth Potentiometer 35 for adjusting planting depth Motor wiring 36 for adjusting planting depth Potentiometer wiring 40 for adjusting planting depth Base

Claims (2)

A seedling stand on which the seedlings are placed;
a planting mechanism that scrapes seedlings from the seedling stand and plants them in a field;
a scraping amount adjustment shaft that is arranged to be rotatable along the left-right direction and changes the amount of seedling scraping according to the rotational operation;
A transplanting machine comprising a planting depth adjustment shaft that is arranged rotatably along the left and right direction and changes the planting depth of seedlings in accordance with the rotation operation of the shaft,
A motor for adjusting the scraping amount,
a gear member for adjusting the amount of scraping that rotates in accordance with the drive of the motor for adjusting the amount of scraping;
a scraping amount adjusting link member that rotates the scraping amount adjusting shaft in accordance with rotation of the scraping amount adjusting gear member;
A planting depth adjustment motor,
a planting depth adjustment gear member that rotates in accordance with the drive of the planting depth adjustment motor;
a planting depth adjustment link member that rotates the planting depth adjustment shaft in accordance with rotation of the planting depth adjustment gear member;
Further comprising a base that supports the scraping amount adjustment motor, the scraping amount adjustment gear member, the planting depth adjustment motor, and the planting depth adjustment gear member,
The scraping amount adjusting motor and the scraping amount adjusting gear member are arranged on either the left or right side of the base,
The planting depth adjustment motor and the planting depth adjustment gear member are arranged on either the left or right side of the base,
The scraping amount adjusting link member is arranged within the left and right width of the scraping amount adjusting motor,
The planting depth adjustment link member is arranged within the left and right width of the planting depth adjustment motor,
a scraping amount adjusting potentiometer that detects a rotational position of the scraping amount adjusting gear member;
Further comprising a planting depth adjustment potentiometer that detects the rotational position of the planting depth adjustment gear member,
The scraping amount adjusting potentiometer is arranged within the left and right width of the scraping amount adjusting motor,
The transplanter is characterized in that the planting depth adjustment potentiometer is disposed within the left and right width of the planting depth adjustment motor . Wiring for adjusting the amount of scraping connected to the motor for adjusting the amount of scraping;
Further comprising: planting depth adjustment wiring connected to the planting depth adjustment motor,
The transplanting machine according to claim 1 , wherein at least a part of the wiring for adjusting the amount of scraping and the wiring for adjusting the planting depth are arranged within the horizontal width of the base.

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