JPH0622401B2 - Agricultural work machine transmission control device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a power transmission control device for an agricultural work machine such as a seeder or a transplanter.

(Prior Art) Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 57-39704, a signal generated by rotation of a rolling wheel, which is in contact with the ground and rotates, in a vegetable transplanter. , And the implant was configured to implant at regular mileages.

(Problems to be Solved by the Invention) In the conventional technology, it is not possible to reliably confirm whether or not the working unit on the working machine side, that is, the implanter has been actuated by the command signal from the rolling wheel side. In addition, there is a problem that the work is recommended in a state where the transplant tool is not operated, or the transplant tool is operated by a halfway operation so that a certain distance between the plants is not maintained and transplanted.

(Means for Solving Problems) In order to solve the problems of the above-described conventional device, the present invention provides a drive motor (18) for driving an operating part of an agricultural working machine mounted on a tow vehicle to the ground. It is configured to drive and stop by a signal from a command signal detector (16) that detects the rotation of the rolling wheel (15) that rolls, and in the rotating part of the operating part of the agricultural work machine, the rolling wheel ( The detector for confirming whether the rotation operation according to the rotation signal from the (15) side has been performed according to the signal (2
The transmission control device of the agricultural work machine provided with 1) was used.

(Operation and effect of the invention) When the rotation command signal is issued to the drive motor (18) by the rotation of the rolling wheels (15), the drive motor (18) is rotated and the rotary operation part of the agricultural work machine is transmission-rotated. . Then, when the rotating part is actuated, this time along with the rotation, the confirmation detector (21)
Confirms whether or not the proper transmission is performed based on the command signal.

Then, for example, when the operation according to the command signal is not performed, a desired measure such as issuing a warning or stopping the work is taken.

Therefore, the present invention has an effect that the agricultural working machine is surely operated on the basis of the substantially constant traveling distance, and appropriate measures are taken when the operation is not performed according to the command signal.

(Example) A seeder as one example of the present invention will be described in detail with reference to the drawings.

(1) is a tractor as a passenger-type tow vehicle. (2) is a rotary tiller, which is mounted on the rear part of the tractor (1) so as to be vertically movable. (3) is a seeder as an agricultural work machine, which is detachably attached to the hitch (4) provided on the tail wheel attachment frame attached to the machine frame of the rotary tiller (2) and is attached to the soil surface. The groove cutting rotary wheel (5) for forming the seeding groove and the compression wheel (6) for groove backfilling are attached to the frame (14) connected to the hitch (4) so as to be vertically movable via the link (7). A seeding unit (11) consisting of a seed tank (9) and a seed feeding device (10) attached to the tractor body (1) side via a support frame (8) is attached to the seed feeding device (10). In the groove in which the seeds discharged from the seed transfer pipe (12) for receiving and receiving the seeds fed from are placed behind the groove forming part by the groove cutting rotary wheel (5) and the seeds discharged and discharged are formed. It is configured to be sown by. (13) indicates a tail wheel.

Reference numeral (15) is a rolling wheel, which is rotatably attached to the frame (14) via a support arm (17), and has a protrusion provided on the outer periphery for contacting with the ground so as to rotate reliably. ing.

(16) is a command signal detector, which includes a signal generating rotary rod (16a) radially mounted around the support shaft (15a) rotating integrally with the rolling wheel (15) at a predetermined interval, and a rolling wheel. The sensor switch (16b) is mounted on the side of the support arm (17) to which (15) is attached, and detects the passage of the rotary rod (16a). In addition, the sensor switch (16b) is a magnetic sensor in the example in the figure, and the rotating rod (16a) is made of a magnetic material, and the switch is turned on when this is passed through the contactless sensor. However, it is not limited to this type of sensor.

Reference numeral (18) is a drive motor, which is mounted on the frame of the feeding device (10) via the chain case (20) so as to rotate the feeding roll shaft (19) of the seed feeding device (10).

(21) is a detector for confirmation, which includes a signal generating rotary rod (21a) integrally attached to the feeding roll shaft (19) and the rotary rod (2
Sensor switch (21b) that detects that 1a) passes
And has substantially the same configuration as the command signal device (16). Then, the signals of the command signal device (16) and the confirmation detector (21) are sent to the C of the control circuit via the input circuit (22).
The signal is sent to the PU, and the signal is sent to the drive motor (18) via the output circuit (23). Reference numeral (24) is a reference setting device that sends an adjustment reference signal, and (25) is an alarm device.

That is, the signal output from the command signal device (16) is calculated in the CPU to send a signal to rotate the motor (18) at a predetermined rotation speed. In addition, the confirmation detector (2
When the signal from 1) is sent to the CPU via the input circuit (22), a signal for stopping the motor (18) is sent out. Then, by adjusting the reference setting device (24), the rotation speed of the motor (18) can be adjusted, and further, the signal can be set so that the rotation starts slowly, and at the time of stop, it slowly rotates and then stops. It is like this. The signals at the initial stage of rotation and at the time of stopping can be incorporated in the CPU in advance.

Incidentally, even a simple control circuit as shown in FIG. 6 can achieve the intended purpose.

That is, the sensor switches (16b) and (21b) are used to relay
Operate (R1) and (R2) to activate this relay (R1) and (R2)
The motor 18 may be rotated and stopped by the relay contacts R1 and R2.

Explaining the operation of the above example, when seeds are put in the seed tank (9) and the sowing work is started, the surface soil surface of the field is cultivated by the cultivator (2) with the promotion of the tractor (1) and the soil is leveled. It

Then, a seeding groove was formed in the groove cutting rotary wheel (5), and the motor (1
The seed fed from the tank (9) by the feeding roll of the seed feeding device (10) that is rotated by 8) is discharged into the seeding groove through the transfer pipe (12), and then the groove is pressed by the compression wheel (6). Will be buried.

However, the rotation of the drive motor (18) is sent by a signal current when the signal generating rotary rod (16a) that rotates simultaneously with the rotation of the rolling wheels (15) passes through the sensor switch (16b).
It is stored and operated by the CPU and transmitted to rotate the drive motor (18). Therefore, the drive motor (18) rotates, and the feeding roll shaft (1) passes through the chain of the chain case (20).
9) is rotated at a constant rotation speed.

Then, when the feeding roll shaft (19) rotates, this time the signal generating rotary rod (21a) also rotates, and when this passes through the sensor switch (21b), this is detected and the drive motor (18) is detected. A signal is sent to stop the. Therefore, the drive motor (18) does not stop unless the delivery roll shaft (19) is rotated substantially.

In addition, when a command signal from the rolling wheel (15) side is received, the feeding roll shaft (19) may not rotate within a predetermined time, and if a situation occurs such that reliable transmission is not performed, the CPU An abnormal signal is transmitted from the device, and a warning is given by the alarm device (25) such as a buzzer or an alarm lamp.

[Brief description of drawings]

FIG. 1 shows a seeder according to an embodiment of the present invention, FIG. 1 is a side view thereof, FIG. 2 is a plan view of an essential part, and FIGS. 3 and 4 are oblique views of the essential part. The figure shows the control block circuit diagram, 6th.
The figure is an electric circuit diagram. In the figure, (1) is a tractor as a towing vehicle, (15) is rolling wheels, (16) is a command signal detector, (18) is a drive motor, and (2)
1) is a confirmation detector.

Claims (4)

[Claims] A signal from a command signal detector (16) for detecting the rotation of a rolling wheel (15) that rolls a drive motor (18) that drives an operating part of an agricultural work machine mounted on a tow vehicle. It is configured to be driven and stopped by the rotating part of the operating part of the agricultural work machine, and for confirming whether or not the rotation operation according to the signal is performed by the rotation signal from the rolling wheel (15) side. A transmission control device for an agricultural work machine provided with a detector (21). 2. The transmission control device for an agricultural work machine according to claim 1, wherein the confirmation detector (21) is configured not to issue a stop signal for the drive motor (18) until the signal detector rotates. . 3. A confirmation detector (21) configured to receive a rotation signal from the side of the rolling wheels (15) and activate alarm means when the drive motor (18) does not operate exactly according to the signal. A transmission control device for an agricultural work machine according to claim 1. 4. A signal for driving the drive motor (18) from the rolling wheel (15) side slows down the starting rotation of the drive motor (18), and the drive motor from the confirmation detector (21) side. The transmission control device for an agricultural work machine according to claim 1, wherein the stop signal of (18) is controlled by a control circuit that issues a slow rotation signal so as to stop after slow rotation.