JP2015065889A - Paddy field working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To highly accurately adjust (set) a supply amount of agricultural materials with an actuator in a paddy field working machine.SOLUTION: A paddy field working machine includes an agricultural material supply device 11 which supplies agricultural materials to a paddy field, a supply amount adjustment device 24 which adjusts the supply amount of the agricultural materials to the paddy field by the agricultural material supply device 11, and a display 57 which displays the supply amount of the agricultural material supply device 11 on the basis of the adjustment amount by linking to the supply amount adjustment device 24. A reference position of producing a reference supply amount in the agricultural material supply device 11 is set in the supply amount adjustment device 24. Correction on the display 57 is possible so that a display supply amount displayed by the display 57 at the reference position becomes the reference supply amount.

Description

  The present invention relates to a paddy field machine equipped with an agricultural material supply device that supplies agricultural materials such as granular fertilizers and seeds, chemicals, liquid fertilizers and chemicals to the rice field.

In the riding type rice transplanter, which is an example of a paddy field work machine, as disclosed in Patent Document 1, a fertilizer application device (agricultural material) that supplies powdered fertilizer (equivalent to agricultural material) to the rice field at the same time as seedling planting Some of them are equivalent to a supply device).
In patent document 1, it has comprised so that the feeding amount (amount of supply of agricultural material) of a fertilizer can be adjusted, and adjustment (setting) of the feeding amount of a fertilizer can be performed with an electric motor (equivalent to an actuator). It is configured as follows.

Japanese Patent Laying-Open No. 2011-120482 (see FIG. 21)

As in Patent Document 1, when adjusting (setting) the supply amount of agricultural materials by the actuator, the scale relating to the supply amount provided in the apparatus plays an important role. There is a disadvantage that the scale value shown in the setting) does not necessarily match.
An object of the present invention is to enable adjustment (setting) of the supply amount of agricultural materials with high accuracy by an actuator in a paddy field work machine.

  A paddy field work machine according to the present invention includes an agricultural material supply device that supplies agricultural material to a rice field, a supply amount adjustment device that adjusts the supply amount of agricultural material to the rice field by the agricultural material supply device, and the supply amount adjustment device; And a display for displaying a supply amount by the agricultural material supply device based on an adjustment amount by the supply amount adjustment device, and a reference position for generating a reference supply amount in the agricultural material supply device is provided in the supply amount adjustment device. The display device can be modified so that the display supply amount that is set and displayed by the display device at the reference position becomes the reference supply amount.

  According to this configuration, the supply amount adjusting device is adjusted in advance so as to correspond to the reference position at which a predetermined amount of agricultural material is supplied in the agricultural material supply device, that is, the predetermined adjustment amount in the supply amount adjusting device. The position (including state and posture) is determined. That is, if the adjustment amount in the supply amount adjusting device is set to be the reference position, the agricultural material having a predetermined supply amount (actual supply amount at the reference position: reference supply amount) is determined as the agricultural material supply device. Will be supplied from. Since the agricultural material supply device and the display are not linked, there is an error in the display function of the display, or there is an error in the transfer function related to the adjustment amount between the supply adjustment device and the display. In this case, the display supply amount displayed on the display device is different from the actual supply amount (actual supply amount). Therefore, when there is a difference between the display supply amount and the actual supply amount, the display function of the display and the supply amount adjustment device are used so that the display supply amount becomes the reference supply amount using the reference position. Correct the transmission function related to the adjustment amount with the display unit. As a result, the display supply amount in the display unit matches the actual supply amount.

  In one simple and preferred embodiment of the indicator, a displacement indicator received from the supply amount adjusting device as the amount of adjustment of the supply amount adjusting device, and a display supply amount by instructing the displacement indicator. A display unit can be configured from the scale unit to be specified. In such a display unit, the difference between the reference supply amount and the display supply amount can be corrected by changing the displacement indicator and / or the scale unit. The reference supply amount and the display supply amount are moved so as to coincide with each other. When there is a difference between the reference supply amount and the display supply amount, the displacement pointer is displayed on the scale unit so that the displacement pointer accurately indicates the reference supply amount that is the actual supply amount assigned to the reference position. Move to a position, or move the scale part to adjust the exact scale position of the scale part to the displacement pointer. That is, when the displacement guide and the displacement corresponding to the adjustment amount of the supply amount adjusting device are connected by the mechanical displacement transmission means, the displacement guide and the scale portion are relatively moved by the difference, The displacement pointer indicates an accurate scale position.

  On the other hand, an embodiment in which a displacement amount corresponding to the adjustment amount of the supply amount adjusting device is transmitted to the displacement indicator by an electric signal can be adopted. In this case, the displacement indicator is an electric display unit. For example, a segment display. In this case, in the correction of the difference between the reference supply amount and the display supply amount, for example, the electric signal corresponding to the adjustment amount may be offset, or the numerical value assignment in the display unit may be offset. Accordingly, in another embodiment of the present invention, the display unit receives the adjustment amount of the supply amount adjustment device from the supply amount adjustment device as an electric adjustment signal, and receives the adjustment signal from the supply amount adjustment device. A display signal generation unit that generates a display signal for displaying the display supply amount based on the display signal, and a display unit that displays the display supply amount based on the display signal, the reference supply amount and the display supply amount The correction of the difference is realized by correcting the adjustment signal and / or the display signal.

  In one preferred embodiment of the present invention, the supply amount adjusting device includes an actuator for operating the adjustment amount, and the supply amount adjusting device or a paddy field work machine equipped with the supply amount adjusting device. A wireless receiving unit for receiving an operation signal for the actuator from the outside is provided. According to this configuration, even if the driver who boarded the paddy field work machine does not operate the actuator, for example, an operator or control device outside the paddy field work machine transmits a signal to the paddy field work machine, thereby The supply amount of agricultural materials can be adjusted (set) by operating and operating the adjusting portion of the supply amount adjusting device. Thereby, not only does the driver of the paddy field work machine need to operate the actuator, but also the supply amount of agricultural materials can be set from a remote place, for example, a farming center that manages farming.

It is a whole side view of a riding type rice transplanter. It is a whole top view of a riding type rice transplanter. It is a front view of a fertilizer applicator. It is a top view of a fertilizer applicator. It is a schematic plan view of the fertilizer application of the state which supplies a fertilizer to a groove making machine. It is a schematic plan view of the fertilizer in the state of discharging manure from the discharge port of the discharge duct. It is a side view of the supply amount adjustment apparatus in the state where the supply amount of the fertilizer of the feeding part per predetermined area increases. It is a front view of a supply amount adjusting device. It is a vertical front view of the vicinity of the adjustment part of a supply amount adjusting device. It is a side view of the supply amount adjusting device in a state where the supply amount of fertilizer in the feeding unit per predetermined area is reduced. It is a schematic diagram which shows the reference | standard marker which shows the reference | standard position formed in the supporting member, and the scale label of a scale member. It is a schematic diagram which shows the relationship between the adjustment amount, the display supply amount, the actual supply amount, the reference position and the reference supply amount. It is a perspective view of the vicinity of the control panel. It is a functional block diagram which shows the function part constructed | assembled by the control apparatus and the management computer of the remote place.

  As shown in FIG. 1, a link mechanism 3 that can be swung up and down is provided at the rear of the machine body that is supported by the right and left front wheels 1 and the right and left rear wheels 2. A row planting type seedling planting device 5 is supported so as to be movable up and down, and a hydraulic cylinder 4 that drives the link mechanism 3 to move up and down is provided to constitute a riding type rice transplanter that is an example of a paddy field working machine.

  As shown in FIGS. 1 and 2, the seedling planting device 5 includes four transmission cases 6, a pair of rotation cases 7 that are rotatably supported at the rear part of the transmission case 6, and both ends of the rotation cases 7. A pair of planting arms 8, a grounding float 9, a seedling platform 10 and the like are provided.

  As shown in FIGS. 1 and 2, the power of the engine 17 is driven by a hydrostatic continuously variable transmission for traveling (not shown), an inter-strain transmission (not shown), and planting. It is transmitted from the clutch (not shown) to the seedling planting device 5 through the transmission shaft 19 and the PTO shaft 20. Thus, as the seedling platform 10 is driven to reciprocate laterally to the left and right, the rotary case 7 is rotationally driven, and the planting arms 8 alternately take out the seedlings from the lower part of the seedling platform 10 and put them on the rice field. Plant.

  As shown in FIGS. 1 and 2, a hopper 12 for storing powdered fertilizer (corresponding to agricultural materials) and four feeding sections 13 corresponding to two planting strips are provided on the rear side of the driver seat 31. The blower 14 is provided below the driver seat 31. A groover 15 is fixed to the ground float 9, and eight groovers 15 are provided. Eight hoses 16 are connected across the feeding portion 13 and the groover 15. The fertilizer application device 11 is constituted by the hopper 12, the feeding portion 13, the blower 14, the groove producing device 15, the hose 16, and the like.

  As shown in FIGS. 2, 3, and 4, the blower 14 is configured to be driven by an electric motor 25, and the suction duct 32 of the blower 14 extends near the engine 17. The blower 14 is configured to suck in hot air. A bifurcated branch duct 26 is connected to the blower 14, and a supply duct 27 is connected between the branch duct 26 and the front portion of the feeding portion 13, and the suction portion 13 a of the feeding portion 13 is inserted into the supply duct 27. (See FIG. 5).

  As shown in FIGS. 4 and 5, a discharge port 13 b and a shutter 28 that opens and closes the discharge port 13 b are provided at the rear portion of the feeding portion 13, and a discharge duct 29 is connected across the discharge port 13 b of the feeding portion 13. A connection duct 30 is connected across the supply duct 27 and the discharge duct 29. The branch duct 26 and the connection duct 30 are provided with shutters 33 and 34, and an operation shaft 35 is rotatably supported in the left and right direction of the front portion of the feeding portion 13. The operation shaft 35 and the shutters 28, 33 and 34 are supported. The linking member 36 is connected across.

  The state shown in FIG. 5 is a state in which the shutters 28 and 34 are operated to the closed position by the operation shaft 35 and the shutter 33 is operated to the open position, and the blower 14 blows air through the branch duct 26 and the supply duct 27. And supplied to the feeding unit 13. As a result, when the fertilizer is fed from the hopper 12 by a predetermined amount by the feeding unit 13, the fertilizer is supplied to the grooving device 15 through the hose 16 by the blower 14, and the fertilizer is fed to the surface through the grooving device 15. To be supplied.

  When the fertilizer remaining in the hopper 12 is collected after the planting operation is completed, the operating shaft 35 is rotated by holding the handle portion 35a of the operating shaft 35 as shown in FIG. The shutter 33 is operated to the closed position by operating to the open position. As a result, the fertilizer of the hopper 12 is discharged from the discharge port 13 b of the feeding portion 13 to the discharge duct 29, and the blower 14 is supplied to the discharge duct 29 via the branch duct 26, the left supply duct 27 and the connection duct 30. Then, the fertilizer that has been discharged to the discharge duct 29 is sent and discharged from the discharge port 29 a of the discharge duct 29.

  As shown in FIGS. 1, 3, and 4, the power of the engine 17 is transmitted to the transmission shaft 21 from a hydrostatic continuously variable transmission (not shown) for travel and a fertilizer clutch (not shown). A transmission shaft 22 is rotatably supported along the left and right direction of the right rear portion of the fertilizer application apparatus 11, and an arm 21 a fixed to the rear end portion of the transmission shaft 21 and a left end portion (end on the center side) of the transmission shaft 22. The connecting rod 23 is connected to the arm 22a fixed to the part). As a result, the rotational power of the transmission shaft 21 is converted into a vertical reciprocating motion by the arm 21a and the linkage rod 23 of the transmission shaft 21, and is transmitted to the transmission shaft 22 as a reciprocating rotational motion within a predetermined angle A1 (see FIG. 7). Communicated.

  As shown in FIGS. 3 and 4, a supply amount adjusting device 24 is provided at the right end portion of the fertilizer application apparatus 11, and the right end portion of the transmission shaft 22 is connected to the supply amount adjusting device 24. A transmission shaft 37 is rotatably supported along the left-right direction of the rear portion of the feeding portion 13, and the right end portion of the transmission shaft 37 is connected to the supply amount adjusting device 24.

  As shown in FIG. 4, a feeding roll (not shown) that feeds the fertilizer by a predetermined amount with rotation is built in the feeding section 13, and an input gear 13 c connected to the feeding roll is located on the right side of the feeding section 13. It is provided on the side surface. A drive gear 37 a is fixed to the transmission shaft 37, and the drive gear 37 a of the transmission shaft 37 is engaged with the input gear 13 c of the feeding portion 13.

  As shown in FIGS. 3, 4, and 7, the rotational power of the transmission shaft 21 is converted into a vertical reciprocating motion by the arm 21 a and the connecting rod 23 of the transmission shaft 21, and the transmission shaft is reciprocated in a predetermined angle A1 range. 22 to the supply amount adjusting device 24. In the supply amount adjusting device 24, a predetermined angle A2 to be described later is adjusted to be large or small, converted into a rotational motion in a fixed direction by the one-way clutch 38, and transmitted to the transmission shaft 37. The fertilizer is fed from the feeding unit 13 by being driven to rotate.

  As shown in FIGS. 7, 8, and 9, a support frame 39 configured by bending a plate material into a box shape is fixed to the right end portion of the fertilizer application device 11, and a vertical wall-like right and The left support member 40 is fixed. An arm 41 rotatably supported by a boss portion 40a at the lower portion of the support member 40 and rotatably supported around a horizontal axis P2 in the left-right direction of the support member 40; A linkage rod 42 is connected across the arm 22b fixed to the right end of the transmission shaft 22.

  As shown in FIGS. 7 and 9, the support member 40 is formed with a laterally long hole 40 b along the front-rear direction, and a bearing member 43 is slidably supported in the long hole 40 b of the support member 40. A fulcrum pin 44 is supported over 43, and a collar 45 is fitted on the fulcrum pin 44. The balance arm 46 is formed by bending the plate material into a U-shaped cross section, and a long hole 46a is formed on the lateral side surface of the balance arm 46. A fulcrum pin 44 is inserted into the long hole 46a of the balance arm 46, and the balance The arm 46 is supported so as to be swingable up and down around the horizontal axis P1 of the fulcrum pin 44 in the left-right direction.

  As shown in FIGS. 7 and 8, in addition to the connecting rod 42 being connected to the arm 41, it is fixed to the lower part of the support member 40, which is also connected to the rear end of the balance arm 46. A right end portion of the transmission shaft 37 is rotatably supported by the boss portion 47a of the bracket 47, and a one-way clutch 38 is externally fitted to the right end portion of the transmission shaft 37. The arm 38a and the balance arm 46 of the one-way clutch 38 are fitted. The connecting rod 48 is connected to the front end portion of the.

  When the rotational power of the transmission shaft 21 is converted into a vertical reciprocating motion by the arm 21a and the connecting rod 23 of the transmission shaft 21 and transmitted to the transmission shaft 22 as a reciprocating rotational motion within a predetermined angle A1, the transmission shaft 22 The balance arm 46 swings up and down around the horizontal axis P1 via the arm 22b and the connecting rod 42. The linkage rod 48 reciprocates up and down by the balance arm 46, and the up and down reciprocation of the linkage rod 48 is converted into a rotational movement in a fixed direction by the one-way clutch 38 and transmitted to the transmission shaft 37.

  As shown in FIG. 9, a plate-like regulating member 44 a fixed to the fulcrum pin 44 extends upward and is disposed so as to be close to the upper side portion of the support member 40. Thereby, even if the fulcrum pin 44 tries to rotate around the horizontal axis P <b> 1, the rotation of the fulcrum pin 44 is stopped when the regulating member 44 a of the fulcrum pin 44 contacts the upper side portion of the support member 40.

  Next, in the supply amount adjusting device 24, a structure for adjusting the rotational speed of the transmission shaft 37 by adjusting the position of the fulcrum pin 44 along the elongated hole 40b of the support member 40 (the feeding portion 13 per predetermined area). The structure for adjusting the feed amount of the fertilizer will be described. The amount of fertilizer fed here means the amount of fertilizer (agricultural material) supplied from the fertilizer application device (agricultural material supply device) 11 and will be referred to as the supply amount hereinafter.

As shown in FIGS. 7 and 9, a bearing portion 49 is fixed to the front vertical wall portion 39 b and the rear vertical wall portion 39 c of the support frame 39, and the screw shaft 50 is rotatably supported by the bearing portion 49. ing. The adjustment part 51 comprised integrally by the casting is provided, and the screw axis | shaft 50 is inserted in the boss | hub part 51a (The internal thread is formed in the inner surface) of the upper part of the adjustment part 51. FIG. A pair of arm portions 51 b are provided below the adjustment portion 51, and a fulcrum pin 44 is inserted into the opening of the arm portion 51 b of the adjustment portion 51.

  As shown in FIG. 7, the position of the fulcrum pin 44 is adjusted along the long hole 40 b of the support member 40 by rotating the screw shaft 50 and moving the adjusting portion 51 along the screw shaft 50. Can do. In this case, since the balance arm 46 is connected to the arm 41 via the linkage rod 42, it does not move as the fulcrum pin 44 moves, and the fulcrum pin 44 moves along the elongated hole 46 a of the balance arm 46. Moving.

  The state shown in FIG. 7 is a state in which the adjustment unit 51 is positioned at the left end of the sheet (a state in which the fulcrum pin 44 is positioned at the left end of the long hole 46a of the balance arm 46). Since the range of the predetermined angle A1 of the reciprocating rotational movement of the transmission shaft 22 is constant, the predetermined angle A2 in which the front end portion of the balance arm 46 swings up and down around the horizontal axis P1 is large in the state shown in FIG. . As a result, the transmission shaft 37 rotates greatly as the front end of the balance arm 46 swings once, and the rotation speed of the transmission shaft 37 increases (the fertilizer of the feeding portion 13 per predetermined area). The amount of supply increases).

  The state shown in FIG. 10 is a state in which the adjustment unit 51 is positioned at the right end of the sheet (a state in which the fulcrum pin 44 is positioned at the right end of the long hole 46a of the balance arm 46). Since the range of the predetermined angle A1 of the reciprocating rotational movement of the transmission shaft 22 is constant, the predetermined angle A2 in which the front end portion of the balance arm 46 swings up and down around the horizontal axis P1 is small in the state shown in FIG. . As a result, the transmission shaft 37 is rotated to a small extent with one swing of the balance arm 46, and the rotation speed of the transmission shaft 37 is reduced (the amount of fertilizer supplied to the feeding unit 13 per predetermined area). Is less state).

Next, the structure for rotationally driving the screw shaft 50 and the structure for detecting the position of the adjusting unit 51 in the supply amount adjusting device 24 will be described.
As shown in FIGS. 7 and 8, the screw shaft 50 projects forward from the front vertical wall portion 39 b of the support frame 39, and the input gear 50 a is fixed to the front end portion of the screw shaft 50.

  As shown in FIGS. 7 and 8, a plate-like support member 52 is fixed to the vertical wall portion 39 b on the front side of the support frame 39, and an electric motor 53 (corresponding to an actuator) and a speed reduction mechanism 54 are attached to the support member 52. The pinion gear 54 a of the speed reduction mechanism 54 is fixed to the input gear 50 a of the screw shaft 50. As a result, the pinion gear 54a of the speed reduction mechanism 54 is rotationally driven in the forward direction and the reverse direction by the electric motor 53, so that the screw shaft 50 is rotationally driven in the forward direction and the reverse direction.

  As shown in FIGS. 7 and 9, a plate-like support member 55 is fixed to the support member 40, and a position sensor 56 constituted by a potentiometer is fixed to the support member 55. The supply amount of the fertilizer supplied from the fertilizer application device 11 is displayed based on the adjustment amount in the supply amount adjustment device 24. As an indicator for performing this display, in this embodiment, a displacement pointer 57 formed by bending a plate material is provided. The displacement pointer 57 is fixed to the adjusting portion 51 with a bolt 58, and the pin 56 b of the detection arm 56 a of the position sensor 56 is inserted into the vertically elongated slot 57 a of the displacement pointer 57. The adjusting unit 51 and the displacement pointer 57 are integrally formed of a casting, and a structure is adopted in which the detection arm 56a (pin 56b) of the position sensor 56 is directly connected to the adjusting unit 51 (displacement pointer 57). May be.

  As shown in FIGS. 7 and 9, as the adjusting portion 51 and the displacement pointer 57 move integrally along the screw shaft 50, the detection arm 56a of the position sensor 56 moves around the horizontal axis P3 in the left-right direction. Swing. Thus, the position sensor 56 detects the positions of the adjusting unit 51 and the displacement pointer 57, and the positions of the adjusting unit 51 and the displacement pointer 57 are detected as the fertilizer supply amount of the feeding unit 13 per predetermined area.

  As shown in FIGS. 7 and 9, the position sensor 56 is fixed to a support plate 59, and the support plate 59 is fixed to the support member 55 with bolts 60. In this case, since the bolt 60 is inserted into the long hole 59a of the support plate 59 and the support plate 59 is fixed to the support member 55, the positions of the support plate 59 and the position sensor 56 with respect to the support member 55 are set to the horizontal axis. Fine adjustment can be made around P3, and the relationship between the detected value of the position sensor 56 and the positions of the adjustment unit 51 and the displacement pointer 57 can be finely adjusted.

Next, the displacement pointer 57 and the scale member 61 in the supply amount adjusting device 24 will be described.
As shown in FIGS. 7 and 9, the scale member 61 is supported so as to be adjustable around the horizontal axis P <b> 4 in the front-rear direction across the vertical wall portions 39 b and 39 c on the front side and the rear side of the support frame 39. A handle 61d for changing the orientation of the scale member 61 is provided at the rear end of the scale member 61.

  As shown in FIGS. 7 and 9, the scale member 61 has a quadrangular prism shape, and three types of scale labels 61a, 61b, and 61c (corresponding to the scale portions) are attached to each of the three surfaces. The three scale labels 61a, 61b, 61c of the scale member 61 are different from each other, and have a specific gravity (standard) scale label 61a, a specific gravity (small) scale label 61b, and a specific gravity (large) according to the type of fertilizer. It is a scale label 61c. Accordingly, the graduation member 61d of the graduation member 61 is held and the graduation member 61 is rotated around the horizontal axis P4 to change the direction, whereby the desired graduation labels 61a, 61b, 61c of the graduation member 61 are moved upward. Can be positioned.

  The state shown in FIGS. 7 and 9 is a state in which the scale label 61 b of the scale member 61 is positioned on the upper side, and the tip end portion 57 b of the displacement pointer 57 is positioned on the upper side of the scale label 61 b of the scale member 61. State. In this state, as the adjusting portion 51 and the displacement pointer 57 move along the screw shaft 50 as described above, the tip portion 57b of the displacement pointer 57 moves along the upper side of the scale label 61b of the scale member 61. .

  Accordingly, the positions of the adjusting portion 51 and the displacement pointer 57 can be read by visually observing the tip portion 57b of the displacement pointer 57 and the scale label 61b of the scale member 61, and the feeding portion 13 per predetermined area can be read. The supply of fertilizer can be read. Thereafter, when the fertilizer is changed, the scale labels 61a, 61b, 61c corresponding to the changed fertilizer among the scale members 61 may be positioned on the upper side.

  In this case, different scale labels may be attached to the scale member 61 depending on the particle size of the fertilizer, and different scale labels may be attached to the scale member 61 depending on the properties of the fertilizer. May be. Depending on the type of fertilizer, two scale labels may be attached, or four or more scale labels may be attached.

Next, the manual switch 65 that is a manual operation tool for operating the electric motor 53 will be described.
As shown in FIGS. 7 and 8, a support bracket 62 formed by bending a plate material is fixed to the vertical wall portion 39b on the front side of the support frame 39, and a synthetic resin support member 63 is fixed to the support bracket 62. Has been. A position sensor 64 composed of a potentiometer is fixed to the support member 63, and a detection shaft 64 a of the position sensor 64 passes through the opening 63 a of the support member 63 and protrudes toward the screw shaft 50.

  As shown in FIGS. 7 and 8, the manual switch 65 is fixed to the detection shaft 64 a of the position sensor 64, and the manual switch 65 protrudes upward through the opening 62 a of the support bracket 62. The manual switch 65 is positioned on the front side on the right lateral outer side of the scale member 61, and the manual switch 65 is swingable in the front-rear direction around the horizontal axis P5 (detection shaft 64a of the position sensor 64) in the left-right direction. It is supported.

  As shown in FIGS. 7 and 8, the manual switch 65 includes a fan-shaped base portion 65a in a side view and a convex-shaped operation portion 65b provided in the base portion 65a, and is integrally formed of a synthetic resin. Yes. Since the horizontal width of the upper surface of the base portion 95a of the manual switch 65 is set to be substantially the same as the horizontal width of the opening portion 62a of the support bracket 62, the upper surface of the base portion 65a of the manual switch 65 blocks the opening portion 62a of the support bracket 62. In this state, the lower side cannot be seen through the opening 62 a of the support bracket 62.

  As shown in FIGS. 7 and 8, a leaf spring 66 is fixed across the upper part of the back side of the base portion 65 a of the manual switch 65 and the lower portion of the support member 63. It is biased to the neutral position. Thus, even if the manual switch 65 is operated from the neutral position to the rearward increase position, the manual switch 65 returns to the neutral position when the hand is released from the manual switch 65, and the manual switch 65 decreases from the neutral position to the front side. Even if it is operated to the position, if the hand is released from the manual switch 65, the manual switch 65 returns to the neutral position.

  As shown in FIGS. 7 and 10, a reference position BM that is an adjustment position for generating a reference supply amount in the fertilizer application device (agricultural material supply device) 11 is shown on the upper surface of the long hole 40 b of the support member 40. Has been. The reference position BM is preferably indicated by a recognizable reference marker. Here, the reference marker is formed as three marking lines or application lines, and each reference position is indicated by A, B, and C. That is, by aligning the vertical edge of the bearing member 43 of the supply amount adjusting device 24 with the reference position BM, the swing angle of the arm 41, that is, the supply amount (reference supply amount) by the fertilizer application 11 at the reference position BM is obtained. It is determined. As schematically shown in FIG. 11, for example, the position of the vertical edge of the bearing member 43 positioned when the supply amount is 70 kg can be set as the reference position “A”. Similarly, the position where the supply amount is 40 kg can be set as the reference position “B”, and the position where the supply amount is 10 kg can be set as the reference position “C”. Since the bearing member 43 and the displacement pointer 57 are interlocked with each other, the displacement of the bearing member 43 becomes the displacement of the displacement pointer 57.

The relationship among the displacement pointer (display) 57, the fertilizer application device (agricultural material supply device) 11 and the supply amount adjustment device 24 relating to the reference position BM will be described in principle with reference to FIG. In FIG. 12A, the amount of fertilizer supplied from the fertilizer application device 11 is changed by setting the adjustment amount to the supply amount adjusting device 24 by the manual switch 65. Here, the adjustment amount: X is indicated by X1, X2,. Since the function of fertilizer supply of the fertilizer application 11 adjusted based on this adjustment amount is shown by the function: F, the actual supply amount from the fertilizer application device 11 adjusted based on the adjustment amount: X ( Actual supply amount): Y is
Y = F (X). When the adjustment amount is X1, X2,..., The actual supply amount is Y1, Y2,. The function F is mechanically determined by the supply amount adjusting device 24 and the fertilizer application device 11, and is considered to be substantially unchanged.

  This adjustment amount corresponds to, for example, the position of the long hole 40b of the bearing member 43 in the supply amount adjustment device 24 described above. The position of the displacement pointer 57 is determined by this adjustment amount, that is, the position of the bearing member 43, and a supply amount that can be visually observed in relation to the scale member 61, that is, a display supply amount: Z is obtained. Here, the relationship of deriving the display supply amount: Z by the adjustment amount: X is represented by a function: D. That is, the function D is a function that converts the displacement of the bearing member 43 into a specific value determined by the tip portion 57 b of the displacement pointer 57 and the scale of the scale member 61. This is not necessarily linear, and can be made non-linear by using a cam or a link.

  Furthermore, the function: D can be constructed by an electric signal transmission system. Such an electric signal transmission system includes a signal input unit that receives the adjustment amount of the supply amount adjusting device 24 as an electric adjustment signal from the supply amount adjusting device, and a display signal for displaying the display supply amount based on the adjustment signal. The display signal generating unit for generating the display and the display unit for displaying the display supply amount based on the display signal. Specifically, in this embodiment, the display device of the present invention composed of the displacement pointer 57 and the scale member 61 can be constructed with a display unit that displays the display supply amount using an electrical signal from the position sensor 56.

As is clear from the above description, if the displacement pointer 57 is bent or the scale member 61 is displaced, that is, if the function D is not derived from a normal value, a different display supply amount even with the same adjustment amount. End up. In order to correct this abnormal function: D, the reference position BM is used. This correction will be described with reference to FIG.
Here, three reference positions A, B, and C are employed as the reference position BM. The actual supply amount obtained at each reference position is represented here by reference supply amounts: Ya, Yb, Yc. Further, the display supply amounts indicated at the three reference positions A, B, and C are represented by Za, Zb, and Zc.
If the reference supply amount and the display supply amount at each reference position are not equal to each other, it is considered that the function: D, that is, the displacement pointer 57 and the scale member 61 are displaced, so the display supply amount is The displacement pointer 57 and / or the scale member 61 are corrected so that the reference supply amount is obtained.
When the function: D is an electric signal transmission system, the display supply amount may be matched with the reference supply amount by changing the numerical mapping of the display or adjusting the position sensor 56.

  Thus, by performing the inspection using the reference position BM, high accuracy of adjustment (setting) of the supply amount is guaranteed.

Next, the structure near the control panel 71 will be described.
FIG. 13 shows the vicinity of the control panel 71, and a control handle 80 for steering the right and left front wheels 1 is provided at the center of the control panel 71. On the control panel 71, a key switch 72 for starting the engine 17, an operation switch 74 for operating a winker (not shown), and an accelerator lever 75 for the engine 17 are provided on the right side of the control handle 80.

  As shown in FIG. 13, on the left side of the control handle 80 on the control panel 71, a shift lever 76 for operating the hydrostatic continuously variable transmission for traveling and various types of rolling control for maintaining the seedling planting device 5 horizontally. An operation unit 77 is provided for performing the following settings. A liquid crystal display panel 78 for performing various displays is provided on the front side of the control handle 80 in the control panel 71. On the control panel 71, an operation switch 79 is provided on the rear side of the control handle 80 to operate a small number of clutches (not shown) in a transmission and disconnection state.

  As shown in FIG. 13, a lift lever 82 is supported by a handle post 81 that supports the steering handle 80, and the lift lever 82 extends to the right lateral outside through a cover 83 that covers the handle post 81. Yes. The elevating lever 82 is configured to be operable in four directions from a central neutral position to an upper position and a lower position, a front position, and a rear position, and is biased to the neutral position. A cigar socket 84 is provided on the front side of the lift lever 82 in the cover 83.

  When the elevating lever 82 is operated to the upper position, the planting clutch is operated in the disengaged state, and the seedling planting device 5 is automatically raised to the upper limit position. When the elevating lever 82 is operated to the lower position, the seedling planting device 5 is automatically lowered to the rice field with the planting clutch being operated in the disengaged state, and then when the elevating lever 82 is operated to the lower position. The planting clutch is operated in the transmission state.

  A base portion 85a of a support arm 85 that supports a smartphone 67 used for exchanging data with an external computer system or the like is fixed to the handle post 81 and extends obliquely forward to the right, and a cigar socket 84 in the cover 83 is provided. It goes out to the right lateral outside through the front lower side position. An intermediate portion 85b of the support arm 85 is bent from the base portion 85a of the support arm 85, and extends to the right lateral outer side through the front side of the operation switch 74 in plan view.

  As shown in FIG. 13, the end portion 85 c of the support arm 85 is bent upward near the upper portion of the accelerator lever 75 at the idling position and extends upward, and a flat support base 86 is provided on the support arm 85. It is fixed to the upper end of the end portion 85c. The support base 86 is set in a front-up (backward-down) oblique posture, and a surface fastener 86 a (trade name: Velcro) is attached to the upper surface of the support base 86. The support base 86 is located between the outer peripheral portion of the steering handle 80 and the accelerator lever 75 at the idling position in a side view. The support base 86 is located at a position overlapping below the outer peripheral portion of the steering handle 80 in a plan view, and located above the accelerator lever 75 at the idling position.

  As described above, the electric motor 53 that is an actuator that operates the adjustment amount of the supply amount adjustment device 24 that adjusts the supply amount from the fertilizer application device 11 is not only a command by the manual switch 65 but also a smartphone (portable information terminal) 67. It can also be controlled by a command by. For this reason, this riding type rice transplanter is provided with a Wi-Fi unit 68 and a control device 69 as wireless data communication devices capable of exchanging data with the smartphone 67. As shown in FIG. 14, the rider-type rice transplanter is connected to a remote farming center via a data communication line such as the Internet or a mobile phone network by the data communication function of the smartphone 67 and the Wi-Fi unit 68. Data can be exchanged with the installed management computer 200.

  As shown in FIG. 14, the smartphone 67 and the Wi-Fi unit 68 are configured to perform wireless communication with each other according to the Wi-Fi standard, and the Wi-Fi unit 68 and the control device 69 are an example of an in-vehicle LAN. Connected by some CAN. Various signal devices such as position sensors 56 and 64 and the control device 69 are connected by a harness, and the electric motor 53 and the control device 69 are also connected by a harness. Of course, this signal transmission form is an example, and a wireless data communication device other than the Wi-Fi unit 68 may be used, or a device in which the smartphone 67 and the Wi-Fi unit 68 are integrated may be used. Good. It is also possible to replace part or all of the harness connection with an in-vehicle LAN or a wireless LAN.

  The farm management center management computer 200 is constructed as a WEB server system in this embodiment, and includes a WEB server 210, a database server 220, and an application server 230. Since the WEB server system itself is well known, detailed explanation is omitted, but the application server 230 includes a farm field management unit 231, a fertilization management unit 232, and an agricultural machine management unit 234 which are substantially constructed by a computer program. Yes. The farm field management unit 231 generates and manages farm field information, farm field names, farm field positions, planting histories, fertilization histories, harvest histories, and the like owned by each farmer, and stores them in the database server 220. The fertilizer management unit 232 generates and manages the contents of the fertilization work performed (date, fertilizer type, fertilizer amount per unit area, etc.), and stores them in the database server 220. The farm machine management unit 234 generates and manages farm machine setting data in each farm work, setting commands given directly to the farm machine control device 69, and stores the generated data in the database server 220.

First, the rough fertilizer supply amount control in the paddy field work machine incorporated in the control system of FIG. 14 will be described.
When starting the work for one day, the field data regarding the position of the field where the planting work is performed first is transmitted from the management computer 200 to the smartphone 67. The driver displays the field data received by the smartphone 67 on the smartphone 67 and moves the riding rice transplanter to the target field while visually confirming the displayed field data.

  When arriving at the target field, various work data in the target field are transmitted from the management computer 200 to the smartphone 67. Among the work data received by the smartphone 67, work data for fertilization corresponding to the amount of fertilizer supplied from the feeding unit 13 per predetermined area is transmitted from the smartphone 67 to the Wi-Fi unit 68, and the Wi-Fi unit 68. To the control device 69.

  When the control device 69 receives the work data for fertilization, the control device 69 outputs an operation signal to the electric motor 53 based on the work data for fertilization to operate the electric motor 53. When the position sensor 56 detects that the adjustment unit 51 has reached the position corresponding to the work data for fertilization, the electric motor 53 stops. At the same time, the position of the adjusting unit 51 is sent from the position sensor 56 to the Wi-Fi unit 68 via the control device 69, transmitted from the Wi-Fi unit 68 to the smartphone 67, and transmitted from the smartphone 67 to the management computer 200. Is done.

  In various work data in the field to be worked, work data other than the fertilizer supply amount of the feeding unit 13 per predetermined area (planting depth of seedlings by the planting arm 8, the interval between the plants, the planting arm 8 The amount of seedlings to be taken out, the lateral feed speed of the seedling rest 10 and the like) are displayed on the smartphone 67. The driver manually sets the seedling planting depth by the planting arm 8, the spacing between the strains, the amount of seedling taken out by the planting arm 8, the lateral feed speed of the seedling platform 10 according to the display on the smartphone 67. To do.

  The operation of the electric motor 53 by the manual switch 65, which is one of the manual operations, will be described. Since the detection value (voltage) of the position sensor 64 is different when the manual switch 65 is operated to the neutral position, the increase position, and the decrease position, the control device 69 determines that the manual switch 65 is It is determined that the neutral position, the increase position, and the decrease position are operated. When the manual switch 65 is operated to the neutral position, no operation signal is output from the control device 69 to the electric motor 53, and the electric motor 53 stops.

When the manual switch 65 is operated to the increase position, an operation signal is output from the control device 69 to the electric motor 53, the screw shaft 50 is rotationally driven in the forward direction, and the adjustment unit 51 is moved to the left side of FIG. 7 and FIG. Move towards. When the hand is released from the manual switch 65, the manual switch 65 returns to the neutral position by the leaf spring 66, and the electric motor 53 stops.
When the manual switch 65 is operated to the decrease position, an operation signal is output from the control device 69 to the electric motor 53, the screw shaft 50 is rotationally driven in the reverse direction, and the adjusting unit 51 is moved to the right side of the drawing in FIGS. Move towards. When the hand is released from the manual switch 65, the manual switch 65 returns to the neutral position by the leaf spring 66, and the electric motor 53 stops.

  When the electric motor 53 is operated by operating the manual switch 65 to the increase and decrease positions, the position of the adjustment unit 51 is sent from the position sensor 56 to the Wi-Fi unit 68 via the control device 69. , Transmitted from the Wi-Fi unit 68 to the smartphone 67, and transmitted from the smartphone 67 to the management computer 200.

  The control device 69 is operated based on an operation command (external operation signal) sent from the external management computer 200 and a manual switch 65 which is a manual operation tool operated by a driver driving the riding rice transplanter. When a command (internal operation signal) collides, it has a function of giving priority to an external operation command. In addition to the operation command sent from the management computer 200, the operation command from the outside includes an operation command based on the smartphone 67 by an administrator who brings the smartphone 67 away from the riding rice transplanter. It is.

  As shown in FIG. 14, among the functional units constructed in the control device 69, those relating to the present invention include the external operation signal input unit 101, the manual operation signal input unit 102, and the priority operation signal determination. A unit 103, a supply amount adjustment control unit 104, a device control signal output unit 105, and a notification signal output unit 106.

The external operation signal input unit 101 receives an external operation signal for the electric motor 53 sent from the outside via wireless communication via the Wi-Fi unit 68. A manual operation signal generated by the position sensor 64 based on the operation amount of the manual switch 65 is input to the manual operation signal input unit 102. When the manual operation signal and the external operation signal are generated simultaneously, the priority operation signal determination unit 103 preferentially handles the external operation signal as the operation signal for the electric motor 53 with respect to the manual operation signal. The priority operation signal determination unit 103 also has an exception mode in which a manual operation signal is preferentially handled with respect to an external operation signal by a priority switching signal generated by operating an operation tool (not shown).
When the key switch 72 of the riding rice transplanter is turned off when the supply amount of the fertilizer application device 11 is adjusted based on the adjustment amount defined by the external operation signal, the adjustment amount is stored in the storage unit. Remembered. Therefore, when the key switch 72 is turned on, the supply amount adjustment based on this adjustment amount is resumed.

The supply amount adjustment control unit 104 gives a drive signal to the electric motor 53 based on the manual operation signal or the external operation signal transferred from the priority operation signal determination unit 103 to drive the electric motor 53. At this time, the position signal from the position sensor 56 is used as a feedback signal to control the position of the screw shaft 50 by the electric motor 53 and, consequently, the adjusting unit 51. The device control signal output unit 105 generates and outputs control signals for controlling various control devices of this riding rice transplanter including the fertilizer application device (agricultural material supply device) 11. As an example, a switching signal for switching on / off of a fertilizer clutch provided in a power system that transmits the rotational power of the fertilizer application device 11 is output. Therefore, in the riding rice transplanter of this embodiment, the fertilization clutch is operated by sending a fertilization clutch on / off signal as an external operation signal to the control device 69 from the outside, and the fertilizer 11 can be driven or stopped.
For example, if a command for no fertilization is given from the management computer 200 to the control device 69, the fertilization clutch is turned off and the blower 14 is also stopped. If a fertilization execution command is sent to the control device 69 together with an adjustment amount for determining the fertilization amount, the fertilization clutch is engaged and the blower 14 is driven. Furthermore, based on the input adjustment amount, the fertilizer application device 11 is set to a desired supply amount.

  The notification signal output unit 106 includes a first notification signal for notifying that a signal is being input when an external operation signal is input, a second notification signal for notifying that the supply amount is being adjusted when the supply amount is adjusted by the external operation signal, and the adjustment And a third notification signal that notifies the completion of the notification to the notification device 110. The first notification signal, the second notification signal, and the third notification signal are different from each other. For example, when the notification device 110 is a buzzer, an identifiable notification sound can be created by changing the number of beeps, the duration, the interval, and the like. As a result, the driver recognizes from the beep sound that the external operation signal is being received, the supply amount adjustment is being executed, the supply amount adjustment is completed, and that the received adjustment amount matches the current adjustment amount. can do.

  When the supply amount is automatically adjusted based on the external operation signal, the driver can check on the screen of the smartphone 67 whether the riding rice transplanter may run and start the fertilization work. Since the external operation signal passes through the smartphone 67, the target supply amount (fertilization amount) can be displayed on the screen of the smartphone 67. Furthermore, since the smartphone 67 can exchange data with the control device 69, the completion of the supply amount adjustment can be received from the control device 69. Therefore, it is possible to display a fertilization start button on the screen of the smartphone 67 when the supply amount adjustment is completed. If it is configured to activate various functions related to the fertilization work of the riding rice transplanter by pressing this start button, a reliable work is realized.

[First Alternative Embodiment of the Invention]
Instead of the cigar socket 84 in the above-described embodiment, a USB port (not shown) may be provided. Accordingly, when the Wi-Fi unit 68 is not provided, the smartphone 67 and the control device 69 can be directly connected via the USB port, and the smartphone 67 can be charged via the USB port. In this case, the smartphone 67 also functions as the Wi-Fi unit 68.

  The potentiometer (position sensor 64) in the embodiment described above is abolished, a limit switch (not shown) for detecting that the manual switch 65 is operated to the increase position, and that the manual switch 65 is operated to the decrease position. The position sensor 64 may be configured with a limit switch (not shown) for detection.

  The present invention is not only a riding type rice transplanter equipped with a fertilizer using a granular fertilizer as an agricultural material, but also a riding type direct seeding machine equipped with a direct sowing device using seed potato as an agricultural material, or a liquid as an agricultural material. Riding type rice transplanter equipped with fertilizer using fertilizer, riding type direct sowing machine equipped with fertilizer using powdered or liquid fertilizer as agricultural material, riding equipped with chemical supply device using chemical as agricultural material It can be applied to paddy field machines such as type rice transplanters or riding type direct seeders.

11: Fertilizer application equipment (agricultural material supply equipment)
24: Supply amount adjusting device 43: Bearing member 46a: Long hole 50: Screw shaft 51: Adjustment unit 53: Electric motor 56: Position sensor 56a: Detection arm 57: Displacement pointer (display)
57a: long hole 57b: tip 61: scale member (scale part) (display)
61a: Scale label 61b: Scale label 61c: Scale label 64: Position sensor 64a: Detection shaft 65: Manual switch 67: Smartphone 68: Wi-Fi unit (wireless receiver)
69: control device 101: external operation signal input unit 102: manual operation signal input unit 103: priority operation signal determination unit 104: supply amount adjustment control unit 105: device control signal output unit 106: notification signal output unit 110: notification device 200 : Management computer 210: WEB server 220: Database server 230: Application server 231: Agricultural field management unit 232: Fertilization management unit 234: Agricultural machinery management unit A1: Predetermined angle A2: Predetermined angle BM: Reference position

Claims (4)

Agricultural material supply device for supplying agricultural material to the rice field, a supply amount adjusting device for adjusting the supply amount of agricultural material to the rice field by the agricultural material supply device, and the supply amount adjusting device in conjunction with the supply amount adjusting device A display for displaying the supply amount by the agricultural material supply device based on the adjustment amount by
A reference position for creating a reference supply amount in the agricultural material supply device is set in the supply amount adjustment device,
A paddy field machine capable of correcting the display so that the display supply amount displayed by the display at the reference position becomes the reference supply amount. The indicator includes a displacement indicator that receives the adjustment amount of the supply amount adjustment device from the supply amount adjustment device as a displacement amount, and a scale unit that specifies the display supply amount by being instructed by the displacement indicator,
The difference between the reference supply amount and the display supply amount is corrected by moving the displacement indicator and / or the scale unit so that the reference supply amount matches the display supply amount. The paddy field machine according to claim 1. The display includes a signal input unit that receives the adjustment amount of the supply amount adjustment device as an electrical adjustment signal from the supply amount adjustment device, and a display signal for displaying the display supply amount based on the adjustment signal. A display signal generation unit for generating, and a display unit for displaying the display supply amount based on the display signal,
The paddy field work machine according to claim 1, wherein the correction of the difference between the reference supply amount and the display supply amount is realized by correcting the adjustment signal and / or the display signal.   The supply amount adjusting device includes an actuator for operating the adjustment amount, and receiving wirelessly an operation signal for the actuator from the outside in the supply amount adjusting device or a paddy field work machine equipped with the supply amount adjusting device. The paddy field machine according to any one of claims 1 to 3, wherein a section is provided.

Images