JP5315722B2 - Spreader - Google Patents

Description

The present invention relates to a fertilizer applicator and a spreader such as a chemical spreader , and more particularly to an operation device that facilitates the application of an application agent.

2. Description of the Related Art A spreader technique (for example, see Patent Document 1) that spreads while applying an amount of application agent according to the vehicle speed by rotation of a feed roll is known.
JP 2004-329067 A (page 3, FIG. 1).

In a fertilizer applicator, a chemical spreader, etc., it is necessary to prepare various application conditions such as the application amount of the application agent and the traveling speed of the vehicle body, and therefore it takes a considerable time to start the spraying operation. The present invention facilitates the operability by performing this driving operation with good timing.

The invention according to claim 1 is a spraying switch (2) and a feeding roll for rotating the feeding roll (1) in a spraying machine that sprays while applying the amount of application agent according to the vehicle speed by the rotation of the feeding roll (1). A controller (13) for controlling the rotation of (1) is provided, and an operating device is provided to turn on the buzzer (3) and promote the spray running after a certain period of time by turning on the spray switch (2). It is set as the structure of the spreader characterized by these.
When the spraying switch 2 is turned on, the minimum vehicle speed is set by the spraying width, the set application amount, the specific gravity determination of the application agent, etc., the initial rotation speed of the feeding roll 1 is determined and calculated, and the feeding roll 1 is rotated. Output and feed out. In this way, the driver can be informed after a certain period of time from when the feed roll 1 is rotated until the application agent is sprayed from the injection nozzle of the injection tube boom, and the vehicle can be started to travel at an appropriate timing. When traveling is started in this way, the buzzer 3 is stopped. Further, when the running cannot be detected even after a certain time has elapsed, the motor rotation output is turned off.

By turning on the spraying switch 2 in this way, the buzzer 3 is output after a certain period of time, and the spraying driving is promoted, so that the driver can perform the spraying operation accurately and accurately. Operability can be facilitated. In addition, the presence / absence of the three buzzer sounds makes it easy to know whether or not the spraying conditions are met.

Based on the illustrated example, the spreader illustrates a case in which a fertilizer that spreads and applies fertilizer as an application agent is illustrated, and is attached to the rear portion of the tractor vehicle body 4. The vehicle body 4 includes a front wheel 5 and a rear wheel 6, and can be driven and steered. The vehicle 4 is driven by front / rear four-wheel drive and steering wheel steering, and an engine 7 is mounted on the front part, A driver's seat 8 is provided for passenger riding. As a fertilizer applicator, a fertilizer tank 9 for storing fertilizer, a feed roll 1 for feeding fertilizer from the tank 9, a blower fan 11 for jetting fertilizer fed from the feed roll 1 to the blower cylinder 10, and this blower cylinder A tube boom 12 or the like for applying fertilizer sent from 10 to the cultivated soil surface is disposed. These left and right tube booms 12L and 12R are spread out to the left and right outward from the left and right ends of the central tube boom 12M at the center provided across the rear end width of the vehicle body 4. The vehicle body 4 is configured to be switchable by rotating to the storage posture B along the left and right side portions of the vehicle body 4. In addition, a controller 13 for operating and controlling the fertilizer, an operation panel 14 and the like are provided on the side portion of the driver's seat 8 or the like.

Here, the operating device of this spreader is fixed by turning on the spray switch 2 that drives the feed roll 1 in the spreader that sprays while applying the amount of application agent according to the vehicle speed by the rotation of the feed roll 1. After the elapse of time, the operation device is configured to turn on the buzzer 3 to promote the spraying. When the spraying switch 2 is turned on, the minimum vehicle speed is set by the spraying width, set application amount, specific gravity determination of the application agent, etc., the initial rotation speed of the feeding roll 1 is determined and calculated, and this feeding roll 1 is rotated and output. Then pay out. In this way, it is possible to inform the driver of a certain time from when the feed roll 1 rotates to when the application agent is sprayed from the nozzle, and to start traveling at an appropriate timing. When the travel starts, the buzzer 3 is stopped. If the running cannot be detected after a certain time has elapsed, the motor rotation output is turned off.

On the input side of the controller 13, a vehicle speed sensor 15 that detects the traveling vehicle speed of the vehicle body 4, a motor rotation sensor 17 that detects the rotation of the feeding motor 16 that rotates the feeding roll 1, and the amount of residual fertilizer in the fertilizer tank 9. The left and right jet booms 12L and 12R, the boom opening / closing switch 19 for switching the storage postures A and B, the postures A and B of the left and right jet booms 12L and 12R, Boom sensor 20 for detecting the B position, one of the left and right tube booms 12 is extended to the spraying posture A, and the feed roller 1 on the one tube boom 12 side is driven to feed the fertilizer. One-side spray switching switch 21 for spraying while spraying, fan switch 22 for driving the blower fan 11, spray switch 2 for driving the feeding motor 16 to perform the spraying action, and fertilizer Fertilization or, placing the set switch 23 for setting the specific gravity and the like. Reference numeral 24 denotes a key-off sensor that inputs to the controller 13 that a key-off has been detected.

Further, on the output side of the controller 13, the motor rotation direction switching for switching the rotation direction of the feeding motor 16 for rotating the left and right feeding rolls 1, the electric clutch 26 for transmitting the blower fan 11, and the feeding motor 16 is provided. An output 27, open / close outputs 28L and 28R of the left and right jet booms 12, a remaining amount lamp 29 for detecting the remaining amount of fertilizer, a buzzer 3, a monitor display 30 and the like are provided. The controller 13 includes a memory 31 and a nonvolatile memory 32.

The tube boom 12 is extended to the left and right to spread fertilizer. The blower fan 11 that transports the fertilizer is interlocked with the PTO shaft, and changes the rotation speed (rotation speed) of the feeding motor 16 in accordance with the vehicle speed of the vehicle body 4 based on the fertilizer application amount setting value. When a certain time has elapsed since turning on the spraying switch 2 (the time until spraying fertilizer is sprayed from the nozzle hole of the spray tube boom 12 after the turning on of the spraying switch 2 is set in advance), a buzzer is passed. 3 is turned on, the buzzer 3 is turned off when the start of running is detected, and the rotation output of the motor 16 is turned off if no running is detected even after a predetermined time has elapsed.

As shown in FIG. 1, in this operating device , the number of rotations of the feeding roll 1 is calculated based on the set fertilizing amount, the vehicle speed, the specific gravity of the spread fertilizer, the spread width setting, the unit discharge amount of the feeding roll 1 and the like. When the rotation control of the motor 16 is performed, spraying is started when the spraying switch 2 (step S1) is turned on. If it passes, buzzer 3 (S3) output is performed and it is comprised so that a driver | operator may be notified of a driving | running start. And this fixed time is determined by the time required for the feeding roll 1 to rotate from the spray switch 2ON and for the sprayed fertilizer to be ejected from the nozzle.

Next, mainly based on FIGS. 3 and 4, when turning back C from the end of the forward stroke F to the start of the backward stroke R in the field, it is usually applied to crops such as paddy rice and wheat. Is difficult to align when turning because there is no target. Therefore, in the fertilizer application, when the rotation speed of the feeding motor 16 is controlled by calculating the rotation speed of the feeding roll 1 based on the set fertilizing amount and vehicle speed, the specific gravity of the spraying agent, the setting of the spreading width, the unit discharge amount of the feeding roll 1, etc. The travel distances D1 and D2 during the turn C1 (S1) during the turn C (S1) and the straight travel C2 (S2) are detected, and when the set distance D1 + D2 is reached (S3), an instruction for the turn C3 is notified to the driver. When the vehicle travels, the travel distance is calculated based on the travel vehicle speed and the elapsed time, and when the travel set distance set in advance is reached, the buzzer 3 is turned on and simultaneously the turn instruction is displayed on the display unit 30. On the input side of the controller 13, there is provided a steering angle sensor 36 by a steering handle 35 for running and turning the vehicle body. Clutchs 37L and 37R are provided on the transmission paths of the left and right feeding rolls 1L and 1R that are rotated in conjunction with the steering motor 16, respectively, so that the feeding clutch output 37 is possible.

Also, as shown in FIG. 5, during the turn, the travel distance is detected (S1, S2), and the set distance is changed by reaching the set distance (S3) when the turn instruction is given, and the set distance is changed by setting the spreading width. Is. After calculating the mileage based on the vehicle speed and elapsed time when turning, determine the spread width, change the set distance according to the spread width, turn on the buzzer 3 when the set distance is reached, and turn instructions Is displayed on the display unit 30 (S4). On the input side of the controller 13, there is provided a spreading width setting input 25 for setting a spreading width for the left and right jet booms 12 and the like.

Further, in FIG. 6, by correcting the wheel slip ratio 38 when calculating the travel distance during turning (S1, S2), the accuracy of the travel distance is improved, and the turning position can be set to an appropriate position. it can. When the steering angle becomes equal to or greater than a certain angle, it is determined that the vehicle starts to turn, and the vehicle speed calculated from the vehicle speed sensor 15 is corrected based on the set slip rate 38 to calculate the vehicle speed (S1). The travel distance is calculated (S2). When the travel distances D1 and D2 at the time of turning C1 and straight traveling C2 are detected at the time of turning, and the driver is informed of the turning C3 when the set distance is reached, the slip rate can be set by the slip rate setting unit 38, and the driving distance can be set. It is assumed that the slip rate is corrected at the time of calculation. Thereby, the travel distance accuracy can be improved, and the turning position can be set to an appropriate position.

In FIG. 7, in the resumption of spraying after turning, the spraying is resumed in consideration of the time from when the roll drive motor 16 is turned on until the spraying agent is sprayed, thereby eliminating the non-spreading section after turning. be able to. When the steering angle is detected during turning and the spraying is in the middle stage, the spraying is resumed when the return of the steering angle reaches the angle obtained by subtracting a fixed value from the return angle (ON early in consideration of the time from output ON to spraying) To be configured. When the steering angle changes by more than a certain angle (S1), it is determined that the vehicle is turning, and the rotation output of the feeding motor 16 is turned off. The turning when the steering angle is equal to or less than the angle (target angle) obtained by subtracting a certain angle from the return angle (S2). It is determined that the process is not completed, and the rotation output of the feeding motor 16 is turned ON again. Next, mainly based on FIGS. 8 and 9, when the left and right feeding rolls 1L and 1R are driven by the individual motors 16L and 16R, the number of rotations of the inner roll 1 is decreased during turning spraying. When the feeding rolls 1L and 1R are provided on the left and right, and when the rotation speed control is performed by individually driving the feeding rolls 1L and 1R by the motors 16L and 16R, In order to make the inner spraying amount smaller than the outer spraying amount, the rotational speed of the inner roll drive motor 16L or 16R in the turning direction is made smaller. When the steering angle exceeds a certain angle, it is determined that the vehicle is turning (S1). Based on the steering angle, it is determined whether the vehicle is turning left or right. If the vehicle is turning left, the rotation speed of the right roll 1L is decreased (S2). In the case of turning, the rotational speed of the right roll 1R is decreased (S3), and when the steering angle falls within a certain angle, the rotational speeds of the left and right rolls 1L and 1R are controlled to be the same.

The fertilizer tank 9 is provided with small sub-tanks 39L, 39R for herbicides, and the feed section of the tank 39 is provided with sub-rolls 40L, 40R that can be driven together with the feeding rolls 1L, 1R or separately. The herbicide can be fed and sprayed by driving the sub-roll 40.

Further, based on FIG. 10, when the left and right feeding rolls 1L and 1R are driven by the different motors 16L and 16R as described above, the rotational speed of the motor 16L or 16R on one side is set to the set rotational speed. When the distance is more than a certain value, the output of the other motor 16R or 16L is also stopped. By stopping the motor on the opposite side when the motor on one side is abnormal, inappropriate spraying on only one side can be prevented.

The rotation output of the right motor 16R and the left motor 16L is turned ON to the spray switch 2ON (S1) (S2), the rotation sensors 17R and 17L are detected, the rotation speed is calculated, and the rotations of both the motors 16R and 16L are calculated. If the number is within a certain range with respect to the set number of revolutions, it is determined to be normal (S3), and if either is within the certain range, it is determined to be abnormal (S4), and both motors 16R and 16L are turned off.

In FIG. 11, when the left and right feeding rolls 1L and 1R are driven by the different motors 16L and 16R as described above, when the rotation of the motor 16L or 16R on one side cannot be detected, The motor 16R or 16L output is also stopped. Prevent inappropriate spraying on only one side. After the spray switch 2 is turned on (S1), the rotation output of the right motor 16R and the left motor 16L is turned on (S2), the respective rotation sensors 17R and 17L are detected, and it is normal if the rotation of both the motors 16R and 16L can be detected. (S3) If it is not possible, it is determined as abnormal (S4), and both motors 16R and 16L are turned off.

In FIG. 12, even if any one of the motors 16R or 16L has an abnormality, it is fed by the feeding roll 1L or 1R on the opposite side to enable one-side spraying. After the spray switch 2 ON (S1), the left and right boom spray switches 41L and 41R are turned ON, the rotation outputs of the left and right motors 16L and 16R are turned ON, the rotation speed is detected by the rotation sensors 17L and 17R, and the rotation rotates to one side. If an abnormality occurs (S2), the rotation output of the motor 16L or 16R is turned off. If the boom spreading switch 41L or 41R on the abnormal side is turned on, the rotation output of the motor 16R or 16L on the opposite side is also turned off. If OFF, the motor 16R or 16F rotation output on the opposite side is continued.

In FIG. 13, in the rotation control of the feeding motor 16, when the motor 16 is driven, a coefficient for calculating the rotation speed from the rotation signal is distinguished. It is possible to provide an appropriate rotational speed calculation formula considering individual variations of the motor 16 and the drive circuit. When the rotation output is turned on for the left and right motors 16R, 16L after the spray switch 2ON (S1) and the rotation speed is calculated by the signals of the rotation sensors 17R, 17L (S2), the constant of the calculation formula is set to the right side. The setting is made by distinguishing between (a, b) and the left side (c, d).

Next, mainly based on FIG. 14, the left and right feeding rolls 1L and 1R are driven by different motors 16L and 16R to control the rotational speed, and the motors 16L and 16R are driven and stopped. Are provided as left and right one-side spray switches 21L and 21R, and switches (sensors) 19L and 19R for detecting the opening and closing of the boom are provided. When the sensors 19L and 19R are OFF (boom closed), the left and right spray switches Regardless of whether the 21L and 21R are ON or OFF, the closed-side boom feeding rolls 1L and 1R drive motor outputs 16L and 16R are not performed. Prevent spray powder clogging due to incorrect operation. Even when the states of the one-side spray switches 21L and 21R are detected during spraying and the switches 21L and 21R are ON (S1), the boom output switches 19L and 19R (sensors) are not ON (S2). Stop.

Further, in FIG. 15, when the left and right motors 17 are turned on and off by the one-side spray switches 21F and 21R, the type of the roll 1 at the time of OFF is stored, and the roll 1 when turned on again from OFF. Is the stored value. When finishing one-side spraying and returning to both-side spraying, stable spraying can be performed by continuing one type of roll. When the one-side spraying switch 21L is turned off during spraying and the spraying is interrupted (S1), the roll 1L type is stored, and when the switches 21R and 21L are turned on and spraying is resumed (S2), the set fertilizer amount is If they are the same, the types of the roles 1R and 1L are stored, and when they are changed, the types of the initial roles 1R and 1L based on the set values are set. The feeding rolls 1L and 1R are provided with different forms such as a plurality of feeding amounts so that they can be switched or changed, and are stored as the type of the feeding roll 1.

The block diagram of fertilizer application control, and its flowchart. The side view of a fertilizer applicator, a top view, the top view of an operation panel part. The block diagram of the fertilizer application | coating control which shows another example, and its flowchart. The top view which shows the traveling state of the fertilizer applicator. The block diagram of the fertilizer application control which shows another example, and the flowchart. The block diagram of the fertilizer application | coating control which shows another example, and its flowchart. The flowchart of the partial control. The block diagram of the fertilizer application | coating control which shows another example, and its flowchart. The rear view of the feeding roll part, and a top view. The flowchart of the fertilizer application | coating control which shows an another Example. The flowchart of the fertilizer application | coating control which shows an another Example. The block diagram of the fertilizer application | coating control which shows an another Example, and its flowchart. The flowchart of the fertilizer application | coating control which shows another example. The block diagram of the fertilizer application | coating control which shows another example, and its flowchart. The flowchart of the fertilizer application | coating control which shows another example.

1 Feeding roll (L, R)
2 Spray switch 3 Buzzer

Claims (1)

A controller for controlling the rotation of the feeding roll (1) and the spraying switch (2) for rotating the feeding roll (1) in the spreader that sprays while applying the amount of application agent according to the vehicle speed by the rotation of the feeding roll (1) (13) provided with, by oN scatter switch (2), after a certain time, spreaders, characterized by comprising an operating device for prompting the spraying traveling to oN buzzer (3).

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