JP2000279005A - Seed lack alarm for seeding-machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To certainly alarm absence of seeds in a seeding-machine to quickly alarm the absence of seeds. SOLUTION: The standard time T is automatically changed according to the speed V of the body of a seeding-machine in which a seed sensor S1 for detecting supplied seeds from a seed supplying machine alarms when the sensor does not detect the seed for the predetermined time T. Or the standard time T is automatically renewed and set according to the observed value when the sensor does not detect the seed for the predetermined time T or more in the seeding-machine in which the seed sensor S1 detects supplied seeds and alarms.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seed out alarm device that detects a seed out condition of a seeder and issues an alarm. It can be used for running seeding by mounting it on a riding tractor.

[0002]

In a seeding machine mounted on a tractor body and sowing, it is difficult for a pilot to sufficiently monitor the seeding state, and once a seeded state in which seeding is not performed on the way occurs, the seeding takes a long time. It may be continued over a long period of time, and it takes time and effort to perform complementary work for countermeasures. For this reason, a seed sensor that detects whether or not seeding is correctly performed on the seeding machine and an alarm device that performs a seeding alarm by detecting the seeding state of the seed sensor are provided, but depending on the traveling speed of the vehicle body, In some cases, false alarms may occur, or the warning of missing species may be delayed.

If the time interval of seeding in the seeding section for outputting a seeding alarm is constant, when the running speed is low, the operation of the seeding device is also low, the number of seeding grains is small, and a false alarm is issued. There is a possibility that detection of a seedless state may be delayed at high speed.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a seeding machine which issues an alarm when a seed sensor S1 for detecting a seed fed from a seed feeding device 2 does not detect the seed for a predetermined reference time T or more. It is configured to have a shortage alarm device that automatically changes the length in accordance with the traveling speed V of the vehicle body 3. The invention according to claim 2 is a seeding machine that warns when the seed sensor S1 for detecting the seeds is not detected for a predetermined reference time T or more, and the actual measurement value of the detection time interval t of the seeds fed by the seed sensor S1. Based on this, the reference time T is automatically updated and set to provide a missing-species alarm device.

[0005]

According to the present invention, while running on the vehicle body 3, the seed feeding device 2
The seeds are fed out and sown. At this time, the seed sensor S1
Is detected. If the interval between the detected seeds is within a preset reference time T, no alarm is issued. However, if the interval is longer than the reference time T, a seed-missing alarm is issued as a seed-missing state. This warning becomes shorter as the traveling speed V becomes faster, and becomes longer as the traveling speed V becomes slower.

As described above, the reference time T of the seed dispensing interval by the seed sensor S1 is automatically changed in conjunction with the traveling speed V of the vehicle body 3, so that a warning of missing seeds can be issued according to the seed dispensing state. That is, when the traveling speed V of the vehicle body 3 is high, the alarm can be issued early, and the seedless area in the field can be reduced. According to the second aspect of the present invention, since the reference time T is automatically updated based on the actually measured value of the seed sensor S1, the reference time T is determined according to the seed unloading state. Can be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor body 3 has a front wheel 5 and a rear wheel 6 to be steered by a steering handle 4 and can be driven by an engine 8 mounted below a cockpit 7 to travel. The front and rear four-wheel drive mode is adopted. Engine 8
Through the belt 9, the speed change pulley 10, the belt 11, the input pulley 12, etc., and the front transmission case 13 at the front.
The rotation of the input pulley 12 can be continuously variable by changing the tension force of the belt 11 by the transmission lever 15 of the steering post 14 in conjunction with the transmission mechanism of (1).

The front wheels 5 are mounted on both ends of a front axle housing 16 projecting from the front transmission case 13 to both left and right sides, and are interlocked via a transmission mechanism in the front transmission case 13 and a front differential. You. The rear wheels 6 are connected to left and right rear wheel transmission shafts 17 taken out from a rear differential in the front transmission case 13.
Through the transmission mechanism in the rear axle housing 18. The rear wheel transmission shaft 17 is interlocked with a universal joint, and the left and right rear wheels 6 have a support structure that can swing up and down independently.

At the rear of the vehicle body 3, there is provided a parallel link-shaped lift link 20 which is lifted and lowered via a lift cylinder 19 which expands and contracts by hydraulic pressure.
The seeding device 22 is attached to the rear hitch 21. The fertilizer applicator 23 is supported and mounted on the rear end of the vehicle body 3. The sowing device 22 has a float-type equalizing plate 24 arranged at a lower portion, and a groove forming device 25 that forms a sowing groove at a sowing position at the bottom of each equalizing plate 24 and a groove forming device that forms a fertilizing groove at a fertilizing position. The container 26 is formed. The seeding device 22 and the fertilizer 23 can sow and fertilize the grooves formed by the groove generators 25 and 26 formed when the leveling plate 24 slides and leveles the soil surface as the vehicle body 3 advances. Configuration.

The seeding device 22 has a hopper 27 for receiving seeds at a lower portion, and a seed feeding device 2 for feeding seeds from the hopper 27. A seeding pipe 28 is provided on the rear side of the groove formed by the groove device 25 to guide the flow down. The seed feeding device 2 includes:
A pay-out roll 29 having a pay-out groove in which seeds can be fitted is formed on the rotating peripheral surface, and is rotatably supported by a roll shaft 30. By doing so, the seeds in the hopper 27 can be fed to the lower feeding chamber 32. Reference numeral 34 denotes a discharge pipe for guiding seeds flowing down from the feeding chamber 32 to the seeding pipe 28 side, and communicates with a blow port of the fan 35.

The seeds fed by the rotation of the feed roll 29 are guided from the feed chamber 32 to the discharge pipe 34, and are quickly sent out to the seeding pipe 28 by the wind pressure blown from the fan 35, thereby forming a groove. The seeds are squirted B toward the soil surface where the groove A is formed by the vessel 25. The fertilizer applicator 23 has substantially the same configuration as the seeding apparatus 22. 36 is a hopper for storing fertilizer, 37 is a fertilizer feeding device, 38 is a fan, 3
9 is a fertilization pipe.

The front wheels 5 and the rear wheels 6 are driven by the engine 8 to travel, and the PTO shaft 31 and the interlocking mechanism 3 are driven.
The seed dispensing device 2 of the sowing device 22 and the fertilizing device 23 are interlocked via 3 and so on, sowing and fertilizing are performed. The seed feeding device 2 and the fertilizer feeding device 37 are connected to the front wheels 5 and the rear wheels 6 via a transmission mechanism in the front transmission case 13.
Since the running speed V increases in accordance with the rotation speed of the engine 8 and the continuously variable speed of the transmission pulley 10, the feeding speed of seeds and fertilizers increases, and when the running speed V decreases, the feeding speed decreases. As a result, the transmission ratio is kept constant.

In the seeding device 22, a seed sensor S1 for detecting seeding is provided at the rear end of the seeding pipe 28 by the groove generator 2
5 in 40 seeding ports. This seed sensor S1
May be in an impact form in which the falling of the seeds is detected in response to the falling seeds, or in a photoelectric form in which the seeds are detected by a photoelectric tube. The operating portion of the shift lever 15 includes:
The operation amount of the shift lever 15 is detected to detect the shift pulley 10.
A shift sensor S2 is provided for detecting the continuously variable shift range of the vehicle and setting the traveling speed V of the vehicle body 3. The various sensors S1 and the speed change sensor S2 are input to the controller 41, and the alarm device 42 is output. The alarm device 42 is configured to emit an alarm signal by a buzzer, sound, lamp, or the like.

The software program in the controller 41 is set to execute the processing steps shown in the flowchart of FIG. The controller 41 calculates the detection interval t of the seed B passing through the seeding port 40 by the seed sensor S1, that is, the time interval between each seeding.
Further, the reference time T is updated and set while calculating a reference time T set in advance by detecting a shift position by the shift sensor S2 as a time interval corresponding to the traveling speed V by this shift.

The update of the reference time T, the seed sensor S
The detection value of 1 may be calculated as a moving average value of the detection value of the predetermined number of times. In addition, the running speed V is changed in conjunction with the high speed or the vehicle speed so that the running speed V becomes a short time as it goes over the high speed range and becomes longer as it goes over the low speed range.
As described above, the reference time T is changed according to the traveling speed V of the vehicle body 3, and is compared with the detection interval t by the seed sensor S1, and when the detection interval t is longer than the reference time T, the alarm device 42 is output. To alert the pilot.

As the vehicle speed increases, the reference time T becomes shorter, so that the detection interval t easily exceeds the reference time T, and an alarm can be issued earlier. For this reason, the deficient area can be reduced. Note that a speed sensor for detecting the number of rotations of the wheels 6 may be provided instead of the speed change sensor S2 to directly detect the traveling speed V.

In FIG. 5, the difference from the above example is that the control of the above-described warning is performed while the reference time T is updated by detecting the seed detection interval t regardless of the traveling speed of the vehicle body 3. . Thus, the reference time T is calculated based on the seed detection interval t of the seed sensor S1 in the actual work, so that it is possible to quickly know the abnormality of the feeding due to the change in the situation during the sowing work. Note that the reference time T may be an average value obtained by detecting the seed detection interval t a plurality of times, instead of the immediately preceding seed detection interval t. Further, the reference time T may be a value obtained by adding a predetermined value from the seed detection interval t.

[Brief description of the drawings]

FIG. 1 is a block diagram of a seedless alarm control and a flowchart thereof.

FIG. 2 is a side view of the seeding device.

FIG. 3 is a side view of the seeding machine.

FIG. 4 is a plan view of a part thereof.

FIG. 5 is a block diagram of a seedless alarm control showing a partially different embodiment, and a flowchart thereof.

[Explanation of symbols]

 3 vehicle body 2 seed feeding device S1 seed sensor T reference time V running speed

Claims (2)

[Claims] 1. A seeding machine which issues an alarm when a seed sensor S1 for detecting the seeds fed from a seed feeding device 2 does not detect for a predetermined reference time T or more.
Out-of-species alarm device that automatically changes the length according to the running speed V of the vehicle. 2. A seeding machine which issues an alarm when the seed sensor S1 for detecting the unseeded seeds does not detect for more than a predetermined reference time T, based on the actually measured value of the detection time interval t of the unseeded seeds by the seed sensor S1. An out-of-species alarm device that automatically updates the reference time T.