JP5163484B2 - Dispersion control device for powder and granular materials - Google Patents

Description

  The present invention relates to a spray control device for a granular material in which a granular material and powder such as granular fertilizer accommodated in a tank are fed by a feeding device, and the fed granular material is sprayed on a field by a jet tube.

  Conventionally, as an input element from the outside, a spraying amount for setting the spraying amount to be sprayed per area, a spraying width, a spraying speed, a density of the sprayed material, and a size of the feeding roll are respectively set or detected by a detecting means ( For example, a configuration in which the spraying operation is performed while appropriately controlling the rotation speed of the feeding roll during the operation is known.

  With this configuration, by inputting the external input element by a knob operation or automatic detection, the rotation speed of the feeding roll is automatically determined, and the rotation speed of the roll shaft is controlled, so that proper spray amount control can be performed. It is convenient to do.

Also, the number of feeding rolls is controlled by controlling the number of rotations of the feeding rolls. However, a plurality of types of feeding rolls are prepared, and the amount of feeding per rotation is large and small. As a configuration that can automatically set which feed roll type is used, a configuration that can handle precision spraying and large-scale spraying (Patent Document 1).
JP 2008-2220183 A

  By the way, in the structure of the said patent document 1, in the said patent document, the motor rotation output pulse of a granular material supply apparatus does not stand up until it detects a vehicle speed from a stop state in the start of a dispersion | spreading operation | work, and is a non-spraying state. It is the structure which runs by. In order to eliminate this non-spreading section, the spray start control without the non-spreading section is performed by rotating the motor at a predetermined speed by a pseudo motor rotation drive output.

  However, as described above, a plurality of rolls having different feed amounts per unit rotation of the feed rolls are prepared, and it is determined in advance which feed rolls are used for the spraying operation, and the rolls are rotated by inputting the vehicle speed. In the situation where the number is determined, if the type change output of the feeding roll is made during the above-mentioned pseudo motor rotation drive output, there is a possibility that the spraying density fluctuates and the desired spraying condition cannot be obtained.

  In addition, setting the pseudo motor rotation output time to a long time is not preferable because it takes a long time to reach the vehicle speed-linked fertilization control, and is set relatively short. And since this time is short, when the vehicle speed pulse cannot be obtained, that is, when the time has passed without being able to start, the motor rotation output is generally stopped. For this reason, when the operator is a beginner, the spraying operation may be interrupted without being able to shift to the vehicle speed interlocking control.

  In view of the above, the present invention intends to reduce the number of non-spreading sections at the start of spraying and to facilitate the shift to vehicle speed interlocking control.

  According to the first aspect of the present invention, a plurality of or a plurality of sets of feeding rolls (20a, 20b, 20c) are provided below the tank (10), wherein the feeding amount per unit rotation is varied on the feeding roll drive shaft (21). , 20d), a feeding device (11) provided with spraying amount setting means (58, 59U, 59D), and depending on the set spraying amount, which one of the feeding rolls or the feeding roll type is selected. A control unit (15) for setting and inputting a work speed signal of the traveling machine body is provided, and the control unit (15) includes at least the feeding roll (20a, 20a, 20b, 20c, and 20d) are calculated, and the dust particles are dispersed to control the driving means (25) for driving the feeding roll drive shaft (21) so as to achieve the calculated feeding speed. In the control device, the control unit (15) receives the input of the work speed signal from the ON output of the spray switch (69) and executes the spray start control mode until the vehicle speed interlocking control mode is entered. In the interior, the feeding rotation speed by the driving means (25) is configured to rotate at a preset rotation speed. After the spray start control mode has elapsed, the traveling machine body receives an operation speed signal from the traveling machine body. It is set as the dispersion control apparatus of the granular material set as the structure which controls the change of the said delivery roll kind until it is when it is more than a predetermined speed, or when a speed change becomes in a fixed range.

  According to the above configuration, the sprayed material in the tank (10) is fed out by the feeding device (11), but the feeding device (11) has a plurality or a plurality of sets of feeding rolls (20a, 20b, 20c, 20d), and these feed rolls (20a, 20b, 20c, 20d) are selectively provided so as to be fed in large or small depending on the size of the set spray amount, and the set spray amount and vehicle speed. The number of rotations of the feeding rolls (20a, 20b, 20c, 20d) selected based on the information input can be changed and controlled, and the amount of spraying is controlled to automatically follow the speed fluctuation of the machine body.

  Further, based on the output of the spray switch (69), the rotation speed of the driving means (25) is set to a predetermined value, and the normal vehicle speed interlocking control is performed after waiting for the travel speed signal to be input to the control section (25). However, when the vehicle speed based on the work speed signal is less than a predetermined speed, or when the speed change is in an acceleration state exceeding a certain range, the roll type is not changed even if the output change of the feed roll is output.

  According to the second aspect of the present invention, a plurality of or a plurality of sets of feeding rolls (20a, 20b, 20c) in which the feeding amount per unit rotation is varied on the feeding roll drive shaft (21) below the tank (10). , 20d), a feeding device (11) provided with spraying amount setting means (58, 59U, 59D), and depending on the set spraying amount, which one of the feeding rolls or the feeding roll type is selected. A control unit (15) for setting and inputting a detection signal of a vehicle speed sensor (66) for detecting the speed of the traveling machine body is provided, and the control unit (15) includes at least the set spray amount information and the working speed of the traveling machine body. A driving means for driving the feeding roll drive shaft (21) so as to calculate the feeding rotational speed of the feeding rolls (20a, 20b, 20c, 20d) from the signal and to obtain the calculated feeding rotational speed. 5) In the dust particle dispersion control device, the controller (15) receives the operation speed signal from the ON output of the dispersion switch (69) and starts the dispersion until the vehicle speed interlocking control mode is entered. The control mode is executed, and during the spray start control mode, the feed roll rotation speed by the driving means (25) is rotated at a preset speed, and the spray start control mode is executed for a predetermined time (T1). When the detection signal from the vehicle speed sensor (66) is not inputted even if it continues, an alarm for prompting the start of the aircraft is output, and when the aircraft start alarm output continues for a predetermined time (T2), the feeding roll drive signal is stopped. And a timer means for changing the length of the predetermined time (T1) of the spraying start control mode or the predetermined time (T2) of the aircraft start warning output. And cloth control device.

  The sprayed material in the tank (10) is fed out by the feeding device (11), and the feeding device (11) is constituted by a plurality or a plurality of sets of feeding rolls (20a, 20b, 20c, 20d) having different feeding amounts. These feeding rolls (20a, 20b, 20c, 20d) are selectively provided and act so as to be fed in large and small in accordance with the size of the set spray amount, and based on information input of the set spray amount and the vehicle speed. The number of rotations of the selected feeding rolls (20a, 20b, 20c, 20d) can be changed and controlled, and the amount of spraying is controlled by automatically following the speed fluctuation of the machine.

  Immediately after the start of spraying, the spray start control mode is executed, a vehicle speed reference value signal that is substituted for the vehicle speed signal is output, and even if there is no vehicle speed signal, predetermined spraying is performed while rotating at a preset feed roll speed, and a vehicle speed sensor When the detection signal from (66) is output, the spray start control mode is switched to the vehicle speed interlocking control mode, and if the detection signal from the vehicle speed sensor (66) is not output even after a predetermined time (T1), the vehicle starts. Output a warning to prompt. If the detection signal from the vehicle speed sensor (66) is not output even after the aircraft start warning output has elapsed for a predetermined time (T2), the output of the feed roll drive signal is stopped.

  Then, the predetermined time (T1) in the spraying start control mode or the predetermined time (T2) in the aircraft transmission alarm output can be set to be changed by the timer means.

  According to the first aspect of the present invention, the feeding rotation speed by the driving means (25) is set to a predetermined value based on the output of the spray switch, and the normal vehicle speed interlocking control is performed after the travel speed signal is input to the controller. However, when the vehicle speed based on the work speed signal is less than the predetermined speed, or when the speed change is in an acceleration state exceeding a certain range, the roll type is not changed even if the feed roll change output is output. Since there is no change in the type of feeding roll and no change in the number of feeding rotations associated therewith, there is no unevenness in spraying, and stable spraying can be performed.

  According to the second aspect of the present invention, the spray start control mode is executed immediately after the start of spraying, a vehicle speed reference value signal that is substituted for the vehicle speed signal is output, and even if there is no vehicle speed signal, it is rotated at a preset feed roll speed. When the predetermined spraying is performed and the detection signal from the vehicle speed sensor (66) is output, the spraying start control mode is switched to the vehicle speed interlocking control mode, and the detection signal from the vehicle speed sensor (66) has elapsed for a predetermined time (T1). If it is not output even if it is not output, a warning for starting the vehicle is output. If the detection signal from the vehicle speed sensor (66) is not output even after the aircraft start alarm output has elapsed for a predetermined time (T2), the feed roll drive signal is output. However, the timer means can change the predetermined time (T1) of the spraying start control mode or the predetermined time (T2) of the aircraft transmission alarm output by changing the length. , The inexperienced beginner body starting operation by increasing the standard set time than the operator (T1 or T2), thereby preventing the accidental feed roll drive signal output stop.

Embodiments of the present invention will be described below with reference to the drawings.
First, as shown in FIGS. 1 and 2, the granular spraying device 1 is mounted on the rear part of the riding management machine 2. A pair of left and right tanks 10 and 10 are mounted on the rear part of the two riding management machines which are equipped with the engine 3 at the front and transmit the front and rear wheels 4 and 5 by appropriately changing the engine speed. The granular spraying device 1 includes the tank 10, a feeding device 11, a blower 12, a first jet tube 13, a second jet tube 14, a control unit 15, and the like.

  Each of the pair of tanks 10 and 10 is provided with a feeding device 11 for feeding a predetermined amount of sprayed granule from the tank 10. The feeding device 11 comprises a plurality of types of feeding rolls 20 on the feeding roll drive shaft 21, and has the same configuration as the first feeding roll 20 a, a first feeding roll 20 a that is formed in the circumferential direction with a feeding recess as the same capacity. The second feeding roll 20b, the third feeding roll 20c, and the fourth feeding roll 20d that is shorter than these feeding rolls and formed with a shallow recess depth are set as one set, and among these, the first and second feeding rolls 20a and 20b are formed. The third supply roll 20c and the fourth supply roll 20d are mounted on the supply roll drive shaft 21 integrally with the supply roll drive shaft 21 via the one-way clutches 22 and 22, respectively.

  Accordingly, when the roll drive shaft 21 is driven in the forward direction, the first and second feed rolls 20a and 20b are driven by the interlocking action of the one-way clutches 22 and 22, and therefore all the first to fourth feed rolls 20a to 20d are driven. Is driven. Conversely, when the feeding roll drive shaft 21 is driven in reverse, the first and second feeding rolls 20a and 20b are stopped, and the third feeding roll 20c and the fourth feeding roll 20d are driven.

  On the other hand, the tank 10 is provided with a partition wall 10a having a U-shape in plan view, and is divided into a section A corresponding to the first to third feeding rolls 20a to 20c of the feeding device 11 and a section B corresponding to the fourth feeding roll 20d. It becomes the composition which is done. The section A is used for a general fertilizer granule, and the section B is used for a herbicide that requires a small amount of spraying. Accordingly, when the feeding roll drive shaft 21 rotates in the forward direction, the first feeding roll 20a to the third feeding roll 20c rotate in conjunction with each other so that the granule in the section A is set in the feeding state. Only the roll 20c is extended. When the herbicide is introduced into the section B, a small amount is sprayed by this reverse interlocking.

  In the following description, the feeding state of the first to third feeding rolls 20a, 20b, and 20c is the large supply state, the feeding state of the third feeding roll 20c is the medium supply state, and the feeding state of the fourth feeding roll 20d is the small supply. It is called a state. Further, the feed roll types 1, 2 and 3 are set by the feed roll or the feed roll set used in the three forms of large, medium and small.

  The pair of left and right feeding roll drive shafts 21 and 21 are configured to be interlocked by a bevel gear 24 group to a motor interlocking shaft 23 that is orthogonal thereto. The motor interlocking shaft 23 is connected to the motor drive shaft 26 of the feeding roll drive motor 25 by a coupling 27. The feeding roll drive motor 25 is configured to be linked to forward / reverse switching.

  Clutch means 28L and 28R are provided between the motor interlocking shaft 23 and the left and right roll drive shafts 21 and 21, and the rotation of the motor interlocking shaft 23 is transmitted to the left roll drive shaft 21 or is not driven. In this configuration, the rotation of the motor interlocking shaft 23 can be transmitted to the right roll drive shaft 21 or switched to the non-driven state, and the clutch means 28L, 28R are arranged to spread the left and right booms in the vicinity of the driver's seat. The levers 29L and 29R can be operated separately.

  The through cylinders 30 and 30 are respectively located below the pair of feeding devices 11 and 11, and one end of each of the through cylinders 30 and 30 is communicated with the blow cylinder 31 provided with the blower 12. The other end on the downstream side is configured to communicate with the first jet tube 13.

  The blower device 12 is constituted by a blower fan 12a that is linked to the PTO shaft 32 of the passenger management machine 2 via an electromagnetic clutch 12b, and the blast air enters the through-cylinder 30 through the blower cylinder 31 and is fed out. Is transferred to the first jet tube 13 by being carried in an air stream. An air volume adjusting valve 33 is provided in the middle of the blower cylinder 31 so that the air volume adjusting lever 34 can be rotated around the axis.

  A second jet pipe 14 is connected to the left and right first jet pipes 13 via a bellows pipe 40 so as to be bent. Further, a cylindrical body 42 that rotates around the vertical axis 41 is provided at the tip of the second injection tube 14. That is, a support arm 44 that rotates about the longitudinal axis 41 with respect to the frame 43 is provided, and the cylindrical body 42 is attached to the support arm 44, and the support arm 44 and the frame 10 near the tank 10 are connected to the electric telescopic rod 45. Connect with The second tube 14 is changed to a working posture that extends to the left and right of the machine body due to the extension of the electric telescopic rod 45, and the second tube 14 is changed to a storage posture along the side surface of the machine body by shortening the electric telescopic rod 45. It is.

  The cylindrical body 42 is provided with a lateral support shaft 47, and the second jet tube 14 is connected via the support shaft 47, and is rotated around the lateral support shaft 47 in addition to the movement to the storage posture. Can be switched between a vertical storage position and a horizontal working position. The second jet on the left or right side can be changed based on the operation of the left / right adjustment lever (not shown) at hand. The tubes 14L and 14R can be switched to a vertical posture (non-working posture) or a horizontal posture (working posture). 49L and 49R are traction ropes for interlocking operation of the second jet tube 14L or 14R.

The second nozzle tube 14 is formed with nozzle holes 50, 50... Having a predetermined diameter at predetermined intervals.
Next, the control unit 15 of the granular spraying device 1 having the above configuration will be described. The control unit 15 includes a fertilizer controller 15A, a motor controller 15B, and a main machine controller 15C connected to each other (FIG. 7). Among them, the fertilizer controller 15A includes data necessary for fertilization and herbicide application, for example, the feeding roll. While inputting the motor rotation pulse of the drive motor 24, the selection information by the left and right boom spreading levers 48L and 48R, the drive information of the blower fan 12a, the remaining amount sensors 54 and 54 provided in the tank 10, etc., the motor controller 15B A motor rotation output pulse signal, a motor rotation direction switching signal, etc. are output to (Fig. 8).

The machine controller 15C transmits vehicle speed data from a vehicle speed sensor 53 that detects the vehicle speed to the fertilizer controller 15A.
In addition, the fertilizer controller 15 </ b> A inputs information on switches disposed on the operation panel 55. A variable switch 57, a fertilizer setting switch 58, increase / decrease switches 59U and 59D, and a cumulative reset switch 60 are disposed in the vicinity of the liquid crystal display unit 56 in the operation panel 55 in the figure, and these operation switch signals are transmitted from the fertilizer controller. This is a configuration input to 15A. The display content of the liquid crystal display unit 56 can display a fertilizer application set value, a specific gravity value, a memory value, and a cumulative value, and is output so as to be sequentially switched and displayed by turning on the display changeover switch 61.

  In addition, the fertilizer controller 15A is configured to receive a detection output from the remaining amount sensors 63 and 64 disposed in the sections A and B of the tanks 10 and 10, respectively, and issue a remaining amount alarm. In section A, a remaining amount sensor 63 is provided on the wall of the tank 10 and in section B, a remaining amount sensor 64 is provided on the partition wall 10c.

The fertilizer controller 15A incorporates five different control modes. That is, an automatic mode, a variable mode, a memory mode, an emergency operation mode, and a system setting mode (FIG. 9). The automatic mode, variable mode, memory mode, etc. will be described below.
(auto mode)
If the key switch 62 is simply turned on without selecting and setting the various setting modes, the automatic mode is entered. In this automatic mode, a motor rotation output pulse (feeding roll drive motor) is sent to the motor controller 15B that drives the feeding roll of the feeding device 11 in accordance with the fertilizer application set value and the vehicle speed so that the fertilizing amount per unit area becomes constant. (Rotation signal) is output.

  Before starting work, turn on the fertilizer setting switch 58 to display the currently set fertilizer amount (counter-attack fertilizer amount (kg)) and check whether the fertilizer amount is suitable for the work to be done. When the change is made in units of 1 kg by the switch 59U or the decrease switch 59D and the fertilizer setting switch 58 is turned on again for a predetermined time (for example, 2 seconds or more), the value A (kg) is stored (FIG. 10, step 101).

  Next, specific gravity is set (step 102). When the display changeover switch 61 is turned on and “specific gravity” is selected, the current set value is displayed. It is confirmed whether or not the specific gravity value is suitable for the work to be performed. If the specific gravity value is different, it is changed in increments of 0.01 by the increase switch 59U or decrease switch 59D. When turned on, the value D (g / cm 3) is stored.

  As described above, which of the feeding rolls of the feeding device 11 is used, that is, the type of the feeding roll, is determined depending on whether the fertilizing amount A falls within a preset range of large, medium, or small. The In the case of the present embodiment, when the fertilization amount is determined (steps 102 to 105), the rotation direction of the feeding roll drive motor 24 is determined. That is, when the fertilizing amount A corresponds to a large application amount of, for example, a1 (for example, a1 = 25 kg) or more, the feeding rolls so that the first feeding roll 20a, the second feeding roll 20b, and the third feeding roll 20c are operated. A normal rotation signal is output to the drive motor 24 (steps 106 and 108).

  Similarly, when the fertilizer application amount A corresponds to a medium application amount of a2 ≦ A ≦ a1 (for example, a2 = 5 kg), a reverse rotation signal is output to the feeding roll drive motor 24 so that the third roll 20c operates (step) 104, 107).

  A reverse rotation signal is output to the feeding roll drive motor 24 so that the fourth roll 20d operates even when the fertilizer application amount A corresponds to a small application amount of A <a2 (steps 105 and 107). In addition, although the same motor reverse rotation signal is output as the middle spray amount, the feed spatter from the feeding device 11 is determined depending on whether the spatter is stored in the section A or the section B (step) 108, 109).

  As described above, the feed roll type 1, type 2 or type 3 is determined and changed to the driving state by changing and setting the combination of the feed rolls that are set so that the feed amount varies depending on the spread amount setting of the spread material. Is set.

  In the above-described embodiment, the feed roll drive shaft 21 after the feed roll type determination is driven differently by forward rotation or reverse rotation, and the feed amount by the feed device 11 is set and changed. A feed roll with a different feed amount is provided for each, and a motor output is output to drive a feed roll drive shaft that connects a feed roll corresponding to the roll type determined by the setting of the spray amount, or to a plurality of drive motors. Alternatively, a necessary feeding roll may be driven by selecting a necessary clutch via a clutch mechanism.

  Further, in the present embodiment, the tank is divided into section A and section B to select and set the type of feeding roll. However, only the rotation, stop, and selection of the rotating direction of the feeding roll drive shaft 21 are selected. But you can.

  After the determination of the motor drive rotation direction is made as described above, after the speed signal (vehicle speed pulse) is input from the vehicle speed sensor 53 of the traveling machine body and the set specific gravity is determined, the feed roll rotation speed is determined (step 110). ~ 113).

  The feed roll rotation speed Rb calculated by the fertilizer controller 15A based on the vehicle speed S detected by the vehicle speed sensor 53 as described above is output to the motor controller 15B, and the feed roll drive motor 25 is rotationally interlocked based on this calculated value ( Hereinafter referred to as “vehicle speed interlocking control mode”).

  When the vehicle speed S based on the speed signal reaches the specified value due to the start of the aircraft, a motor rotation output pulse (roll drive motor rotation signal) is output. When the vehicle speed S falls below the specified value, it is determined that the vehicle is stopped and a motor rotation output pulse is output. Stop. Even during traveling, when the spray switch 69 is turned off or the fan switch 70 is “OFF”, the output of the motor rotation output pulse (feed roll drive motor rotation signal) is stopped. Further, when the vehicle speed becomes high and the calculated motor rotation number exceeds a preset upper limit value, the buzzer 71 is turned on intermittently with a long sound.

  When the set fertilizer amount is changed while the motor rotation output pulse (feeding roll drive motor rotation signal) is being output and changed from a small amount range to a range exceeding this amount (or vice versa), the motor rotation output is left unchanged. The output of the pulse (feeding roll drive motor rotation signal) is stopped, and after a predetermined short time (for example, 100 msec) has elapsed, the rotation direction switching output and the motor rotation output pulse (feeding roll drive motor rotation signal) are output again. .

(Spreading start control mode)
In the automatic mode, a spraying work start control mode from when the vehicle speed S based on the speed signal of the traveling machine at the start of the spraying work is obtained until the vehicle speed control is performed is configured. That is, when the spray switch 69 is turned on after the key switch is turned on, a preset vehicle speed reference value signal is input instead of the vehicle speed signal of the traveling machine body. A motor rotation output pulse (feed roll drive motor rotation signal) is output based on the vehicle speed reference value signal, and the roll type feed roll drive motor 25 is interlocked with the rotation based on the roll type set in the previous stage according to the set fertilizer application amount.

  Thus, the spraying operation is started while fertilizer is ejected from the jet tube regardless of the vehicle speed. When the operator advances the traveling machine body, the vehicle speed sensor 53 detects a vehicle speed pulse, and the fertilizer controller 15A inputs this and converts it into a predetermined signal to calculate the vehicle speed, and the motor rotation corresponding to the vehicle speed as described above. Generate an output pulse. The period from when the spraying switch 69 is turned on until the motor rotation output based on the vehicle speed pulse is performed is referred to as a spraying start control mode.

  The spray start control mode may be configured to automatically end when the vehicle speed value itself exceeds a predetermined vehicle speed. However, in the embodiment shown in FIGS. The time until the motor rotation output shift can be set.

  In FIG. 13, the time change input by the setting device 65 is read and a predetermined time (T1) is set (steps 201 and 202). When the spraying switch 69 is turned on, the fertilizer application amount and specific gravity set in advance are determined, and the roll type is determined (step 203 to step 206). The initial roll rotation speed in the vehicle speed interlocking control mode is set from the vehicle speed reference value signal that substitutes for the vehicle speed signal of the airframe, and the rotation is output to the feed roll drive motor 25 (steps 207 and 208).

  The pulse output from the vehicle speed sensor 53 is monitored, and if it is determined that there is a vehicle speed pulse in step 210 for determining whether or not there is a vehicle speed pulse, the vehicle speed is calculated (steps 211 and 212), the roll rotation speed is calculated, and the feed roll drive is performed. In this configuration, the motor 25 is driven and output (steps 213 and 214). If it is determined in step 210 that there is no vehicle speed pulse, it is determined whether or not the predetermined time (T1) has elapsed, and when the predetermined time (T1) has elapsed (step 217), an alarm is output to the buzzer 71 to prompt the vehicle to start. (Step 218, for example, intermittent output of long sound), prompt the operator to start the aircraft. Although the aircraft start warning is output for a predetermined time (T2), if it is determined that there is no vehicle speed pulse even after the predetermined time (T2) has elapsed (step 219), the output of the feed roll drive motor 25 is stopped. (Step 220). At the same time, the buzzer 71 is alerted by interrupting the spraying operation by intermittent output of short sounds (step 221).

In the above-described embodiment, the setting object by the setting device 65 is the predetermined time (T1) of the spray start control mode, but it may be the predetermined time (T2) of the aircraft start warning output, and both may be adjusted in length. . In any case, the time from turning on the spraying switch 69 to outputting the aircraft start warning can be changed to a longer or shorter time. By changing according to the skill level of the operator, it is possible to start the traveling aircraft for less experienced operators. It is possible to avoid the situation that the output roll drive motor 25 stops at step 220 and 221 and the buzzer alarm is silently performed by giving a margin to time, that is, by giving a margin to the procedure from step 217 to step 219.
(Variable mode)
While working in the automatic mode with the fertilizer amount set in advance as described above, the fertilizer amount setting is temporarily changed. When the variable switch 57 is turned on, the variable mode 57 is entered, and the variable switch 57 is turned on again. Turning it on ends the variable mode and returns to the automatic mode.

The variable lamp 72 is turned on during the variable mode period.
In order to change the fertilizer application amount, the fertilizer application switch 58 is turned on to display the present fertilizer application amount (counter-contact fertilizer application amount (kg)), and the fertilizer application amount in the variable mode is 1 kg by the increase switch 59U or the decrease switch 59D. When the fertilization setting switch 58 is turned on again for a predetermined time or longer (for example, 2 seconds or longer), the changed fertilization amount value A ′ is stored. The changed setting value is set only during the variable mode period, and writing to the E2PROM is not performed.
Further, the feeding roll rotation control based on the changed fertilizer application amount A ′ is configured in accordance with the automatic mode.

  Every time the display changeover switch 61 is turned on, the liquid crystal display unit 56 (FIG. 6) is turned on by displaying a triangular indicator in the order of “fertilization setting”, “specific gravity”, “memory”, and “total”. Is displayed, and when the “fertilization setting” and “specific gravity” indicators are displayed, the amount of fertilization and the specific gravity can be changed and set by operating the increase / decrease switch 59. In the variable mode, the set specific gravity value is not changed even if the indicator is operated at the “fertilization setting” or “specific gravity” position and the increase / decrease switch 59 is operated. By configuring in this way, it is possible to confirm the set fertilizer application amount and the set specific gravity even in the variable mode, and it is possible to prevent the setting from changing and the roll rotation speed from changing even if the switch is operated by mistake.

  FIG. 14 illustrates the control of the roll type change restriction immediately after the transition from the spray start control mode to the vehicle speed interlocking control mode. When the spraying switch 69 is turned on, the fertilizer application amount and specific gravity set in advance are determined, and then a vehicle speed reference value is set for outputting a pseudo signal to the feeding roll drive motor 25 (steps 301 to 305). Here, the setting of the vehicle speed reference value may be a single fixed value or a form in which the setting can be arbitrarily changed. Next, the roll rotation speed based on the set vehicle speed reference value is calculated for each of the feed roll types 1 and 2 (steps 306 to 309), and each of these roll rotation speeds and each of the feed roll type 1 and the feed roll type 2 is calculated. The set upper limit value and the lower limit value are compared, and a feed roll type having a large difference is selected and determined (step 310 to step 311).

  For example, in the set fertilizer application amount-roll rotation speed relationship graph shown in FIG. 15, the set fertilizer application quantity Q and the roll rotation speed R are in a proportional relationship so that the feed roll type 1 is indicated by a dotted line and the feed roll type 2 is indicated by a solid line. However, in the set fertilization amount Q1, for example, both the point (A) shown in the feeding roll type 2 and the point (B) shown in the feeding roll type 1 are within the upper and lower limit ranges of the roll rotation speed and can be fertilized. It shows that. In such a case, since the point (b) of the feeding roll type 1 is closer to the upper limit or lower limit line than the point (b) of the feeding roll type 2, the comparison in the step 310 is a point. The feed roll type 2 of (A) will be adopted. Similarly, in the set fertilizer application amount Q2, both the point (c) of the feeding roll type 2 and the point (d) of the feeding roll type 1 are within the upper and lower limits of the roll rotation speed, but the point (d) of the feeding roll type 1 The following conditions will be adopted.

  The sprinkling process is performed while inputting the vehicle speed pulse with the feed roll type determined in step 311 (step 313). Then, the detected vehicle speed is compared with the vehicle speed reference value in step 305, the roll rotation speed based on the vehicle speed is calculated, and the output of the feed roll drive motor 25 is output (step 316). When the detected vehicle speed is equal to or higher than the reference value, the presence / absence of a change in the feed roll type is confirmed, and the feed roll type is changed as necessary (steps 319 and 320).

  Therefore, when the vehicle speed exceeds a preset vehicle speed reference value, it can be changed to an appropriate feed roll type for the set fertilizer application amount. By configuring in this way, the feed roll type does not change until the vehicle speed exceeds the reference vehicle speed in step 316 (step 317), and the roll type immediately after the transition from the spraying start time control mode to the vehicle speed interlocking control mode. In order to regulate the change, it is possible to eliminate unnecessary switching of the feed roll type until the vehicle speed is stabilized, and to perform stable spraying.

Instead of step 316, it may be determined whether or not the change in the vehicle speed is equal to or less than a certain value, and the change of the feed roll type may be restricted until it becomes equal to or less than the certain value.
In FIG. 4, the remaining amount sensors 63 and 64 are provided in the sections A and B of the left and right tanks 10 and 10, respectively, but an alarm is given by the output of the buzzer 71 when the fertilizer is out of the section A or the herbicide is out of the section B. However, which of the remaining amount sensors 63 and 64 is adopted is configured to correspond to the set fertilizer amount. If comprised in this way, buzzer 71 output can be performed only about the tank 10 (or 10a) utilized for dispersion | spreading, and the tank 10a (or 10) which is not spread | dispersed at the time of a dispersion | spreading start prevents buzzer 71 output.
(Memory mode)
The memory mode is a mode in which the set fertilization amount and the specific gravity can be automatically called by an operation of selecting the field number by setting and storing the set fertilization amount corresponding to the field number and the like in advance. The memory mode is entered by a plurality of operations of any existing switch, and necessary data is called out from data that stores a plurality of types (for example, 10 types) of set fertilizer amounts and specific gravity based on the operation of the increase / decrease switch 59, and fertilization The configuration is fixed by operating the setting switch 58. Subsequent spraying control is executed in the automatic mode or variable mode.

  Note that, as described above, the memory mode enables the time for calling the set fertilizer amount and specific gravity data corresponding to the field data such as the field number stored in advance only when the machine is stopped. And it is set as the structure which does not perform calling display of field data during spraying. By recalling and setting the stored data in this way only during the stoppage, complicated operations during spraying can be eliminated, and the display contents can be easily understood.

  Furthermore, each time the fertilizer setting switch 58 is pressed, the field number (field data), the set fertilizer amount and the specific gravity are displayed in order on the liquid crystal display unit 56, whereby the setting contents can be associated with the field data. By making the order display only when the machine is stopped, that is, by prohibiting the display during spraying, it is easy for the operator to understand the set value, and erroneous operation can be prevented.

  Further, even when the display of the memory mode is in the state of stopping the aircraft as described above, it is configured to display that the memory mode is being executed during spraying. For example, it is possible to notify that the memory mode is in effect by setting the triangular indicator of the fertilizer storage value of the liquid crystal display unit 56 in FIG. I can grasp.

  16 to 20 relate to a discharge structure that discharges the particulate matter remaining in the tanks 10 and 10 to the outside of the machine. In the illustrated example, a mesh duct 75 is provided in the first injection tube 13 portion, and when the first injection tube 13 is pulled out of the machine, the mesh duct 75 remains and its base portion is connected to the through-cylinder 30. And it is the structure which the front end side becomes a free release state and can discharge the granular material from the feeding apparatus 11 outside the apparatus. In the example shown in FIGS. 16 and 17, the base side 75 a of the mesh duct 75 </ b> A is attached to the end of the cylinder 30 by the fixed band 76, and in a state where the first injection tube 13 is connected to the cylinder 30, The first injection tube 30 is in an inserted state. Reference numeral 78 denotes a collection container or a collection bag. FIG. 18 shows a different holding configuration of the mesh duct 75A, in which a protruding line 77a is formed inside a cylindrical body 77 fitted to the through-cylinder 30, and the base of the mesh duct 75A is formed on the inner end surface of the protruding line 77a. Is locked.

  In the example shown in FIGS. 19 and 20, the mesh duct 75 </ b> B is extrapolated to the first jet tube 13 and is provided by the fixed band 76. As shown in FIG. 20, it is good also as a structure which can fold and accommodate the open | release side edge part of the mesh duct 75B in a bellows shape. If comprised in this way, it can accommodate, without plugging the nozzle hole 50 formed in the 1st jet tube 13. FIG.

  As described above, in the configuration in which the bendable discharge duct 75 is provided to be inserted into or removed from the removably connected jet tube 13, the discharge duct 75 is exposed in a released state by disconnecting the jet tube 13. The granular material fed from the feeding device 11 is conveyed by receiving a blast and can be discharged out of the machine through the discharge duct 75 from the front end side. When the discharge duct 75 is in the form of a mesh duct, it is possible to prevent a situation in which a part of the blast is discharged from the mesh and ejected vigorously from the release outlet, and a discharge operation with less scattering can be performed. That is, in order to minimize the time required for discharging, the rotation speed of the feeding roll during discharging is generally set to the maximum rotation in order to prevent clogging in the tube immediately below the roll. Is also set to the maximum. However, the maximum air volume is required until it passes through the horizontal pipe section of the discharge pipe, and then the natural fall also helps, and the air volume may be small. It has a drawback that it will bounce back and jump out, and if the herbicide is scattered, the worker will be exposed. Therefore, by adopting the mesh form, by escaping a part of the wind to the outside, the momentum of the blast outlet is weakened as described above, and the above disadvantage can be solved.

  Further, since the discharge duct 75 can be bent, a discharge container can be arbitrarily installed. In the form in which the discharge duct 75 is extrapolated to the jet tube 13, the discharge duct 75 in the accommodated state does not have a risk of hindering the conveyance of the granular material to be dispersed, and is put into the accommodated state after being discharged in a bent state. It is easy to return to the cylindrical shape.

  By the way, the discharge operation causes the air blowing action by the blower 12 and the powder and particulate matter feeding action from the feeding device 11 based on the operation of the discharge switch 68. Therefore, the first injection tube 13 is removed before the discharge switch 68 is operated.

  FIG. 21 shows a configuration in which the input of the discharge switch 68 is not accepted when the vehicle speed pulse from the vehicle speed sensor 53 is input in the discharge mode as described above. If comprised in this way, even if the malfunction which the discharge switch 68 turns on during driving | running | working arises, the sprinkling of the fertilizer can be prevented.

  In the case of FIG. 22, when the fan switch 70 is turned off and the feeding is stopped when the fan switch 70 is turned on when the discharge switch 68 is operated, even if the fan switch 70 is turned on again, it does not return to the discharge mode. The feeding is not performed until the discharge switch 68 is turned on again. By configuring in this way, it is not activated only by operating the fan switch 70, so that unexpected spattering can be prevented.

Top view of a passenger management machine equipped with a granular fertilizer Rear view of a passenger management machine equipped with a granular fertilizer Plan view with a partial cross section of the feeding device of the granular fertilizer Top view of tank section of granular fertilizer Side view of feeding device of granular fertilizer Top view of the operation unit Overview diagram showing an example of controller connection Control block diagram flowchart flowchart Time chart Time chart flowchart flowchart Set fertilizer application rate-roll rotation speed relationship graph Side cross-sectional view of the discharge duct Action explanatory diagram of the duct for discharge Side sectional view (b) and action explanatory drawing (b) of another example of the duct for discharge Side view of another example of discharge duct Side view of another example of discharge duct flowchart flowchart

Explanation of symbols

10, 10 Tank 15A Fertilizer controller (roll type determining means, feeding roll rotation speed calculating means)
15B Motor controller 15C Machine controller 20a Feeding roll 20b Feeding roll 20c Feeding roll 20d Feeding roll 21 Feeding roll drive shaft 25 Feeding roll drive motor (drive means)
53 Vehicle speed sensor 58 Variable switch (Spraying amount setting means)
59U increase switch (spraying amount setting means)
59D decrease switch (spraying amount setting means)
69 Spray switch

Claims (2)

A feeding device (11) having a plurality of or a plurality of sets of feeding rolls (20a, 20b, 20c, 20d) having different feeding amounts per unit rotation on the feeding roll drive shaft (21) below the tank (10). ) And spraying amount setting means (58, 59U, 59D), and setting which of the feeding roll types of the feeding roll or the feeding roll group according to the set spreading amount, and the working speed of the traveling machine body A control unit (15) for inputting a signal is provided, and the control unit (15) feeds the feed rolls (20a, 20b, 20c, 20d) from at least the set spray amount information and the work speed signal of the traveling machine. In the powder particle distribution control device for controlling the driving means (25) for driving the feeding roll drive shaft (21) so as to obtain the calculated number of revolutions, the control is performed. The unit (15) receives the input of the work speed signal from the ON output of the spray switch (69) and executes the spray start control mode until the vehicle speed interlocking control mode is entered, and during the spray start control mode, the drive means ( 25) is configured to rotate at a preset number of revolutions, and after the control mode at the start of spraying has elapsed, the traveling machine body receives a work speed signal of the traveling machine body, and the traveling machine body is at or above a predetermined speed. Until the time or when the speed change falls within a certain range, the dispersion control device for the granular material configured to restrict the change of the type of the feeding roll. A feeding device (11) having a plurality of or a plurality of sets of feeding rolls (20a, 20b, 20c, 20d) having different feeding amounts per unit rotation on the feeding roll drive shaft (21) below the tank (10). ) And spraying amount setting means (58, 59U, 59D), and setting which of the feeding roll types of the feeding roll or the feeding roll group according to the set spreading amount, and the speed of the traveling machine body A control unit (15) for inputting a detection signal of a vehicle speed sensor (66) to be detected is provided, and the control unit (15) is configured to output the feeding rolls (20a, 20a, 20) from at least the set spray amount information and the work speed signal of the traveling machine body. 20b, 20c, and 20d), and the granular material for controlling the driving means (25) for driving the feeding roll drive shaft (21) so as to obtain the calculated feeding speed. In the spray control device, the control unit (15) receives the input of the work speed signal from the ON output of the spray switch (69) and executes the spray start control mode until the vehicle speed interlocking control mode is shifted to. During the control mode, the rotation speed of the feeding roll by the driving means (25) is configured to rotate at a preset rotation speed, and the vehicle speed sensor (66) even if the spray start control mode continues for a predetermined time (T1). ) Is output when the detection signal is not input, and when the aircraft start alarm output continues for a predetermined time (T2), the feeding roll drive signal is stopped, and the spray start control mode is set for a predetermined time. (T1) or a timer unit for changing a predetermined time (T2) of the aircraft start warning output to a long or short setting, and a dust particle dispersion control device.

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