JPH0711110U - Rolling detection device for transplantation work part in passenger transplanter - Google Patents

Abstract

(57) [Abstract] [Purpose] While improving the accuracy of rolling detection,
It is also possible to prevent damage to the rolling detector. [Configuration] A pair of left and right detection floats 24a are respectively arranged at positions near the front of the planting claws 8 located at the left and right outer ends of the plurality of planting claws 8 arranged side by side in the planting work unit 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rolling detection device for a transplant working unit in a riding transplanter configured to forcibly perform rolling control of the transplant working unit.

[0002]

[Problems to be Solved by Prior Art and Invention]

 Generally, in this kind of transplanting machine, a pair of left and right rolling detectors that come into contact with the field are used to forcibly perform rolling control of the transplanting work section that is connected to the traveling machine body in a rolling manner based on the operation of the actuator. There is one that detects rolling of the transplantation work unit and controls the operation of the actuator based on the rolling detection. However, conventionally, since the pair of left and right rolling detectors are arranged at the left and right outer ends of the transplanting working unit, rolling detection is performed at a position separated from the transplanted nail at the outer end most susceptible to rolling. Therefore, it is difficult to detect rolling with high accuracy, and when traveling on a ridge where there are many foreign matters and obstacles, the foreign matter may be caught by the foreign matter and the detection accuracy may deteriorate, or the obstacle may come into contact with the obstacle. It was also a problem because it had some drawbacks such as breakage.

[0003]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION The present invention was devised with the object of providing a rolling detection device for a transplanting working section of a riding transplanter, which is capable of eliminating these drawbacks in view of the above-mentioned circumstances. In a riding transplanter in which the transplanting work parts arranged side by side in a horizontal direction are forcibly rolling-controlled based on the operation of an actuator, a rolling work part is detected by contacting the transplanting work part with a field scene. In providing the pair of right and left rolling detectors, the pair of left and right rolling detectors are respectively arranged on the front extension lines of the transplanted nails located at the left and right outer ends. The present invention is capable of significantly improving the accuracy of rolling detection with this configuration.

[0004]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a traveling machine body of a passenger rice transplanter, and a rear part of the traveling machine body 1 is connected with a planting work section 3 via an elevating link mechanism 2 which is hydraulically moved up and down. The planting work unit 3 is rotatably supported by a link connecting frame 4 connected to the rear end of the elevating link mechanism 2 and a boss cylinder 4a formed at the lower end of the link connecting frame 4. Rolling support shaft 5, seedling table support frame 6 integrally connected to the rear end of the rolling support shaft 5, planter case 7 integrally connected to the seedling table support frame 6, the plan Of each rear end portion of the seedling case 7, a plurality of (six in the embodiment) planting claws 8 arranged side by side at a predetermined interval in the left-right direction, the upper end portion of the seedling stand support frame 6 and the planter case 7. It is composed of a seedling table 9 and the like, which is slidably supported in the left-right direction on the upper part and is forced to reciprocate left and right based on the lateral feed action of the lateral feed mechanism installed in the planter case 7. That is, the planting work unit 3 is capable of rolling freely with respect to the traveling machine body 1 (link connecting frame 4) with the rolling support shaft 5 as a fulcrum, and at the time of planting work, a predetermined pitch is set according to the planting timing. The planting claws 8 scrape the planted seedlings from the seedling mounting table 9 that are fed laterally one by one and plant the seedlings on the rice field, but all the above basic configurations are the same as before.

Further, reference numerals 10 and 11 denote a center float and a side float, which are arranged side by side at a predetermined interval in the left-right direction on the bottom of the planter case 7, of which the main float 10 is located at the central position of the planter case 7. Although the single side float 11 is provided, the side float 11 is a pair of left and right sides which are respectively provided on both left and right sides of the planter case 7. The floats 10 and 11 are formed in a rectangular shape that is long in the front-rear direction, and bulging portions 10a and 11a protruding left and right are formed in the front side portion thereof. That is, the bulging portions 10a and 11a are located in front of the planting claws 8 which are respectively disposed in the vicinity of the left and right sides of the floats 10 and 11 in a plan view so as to flatten the rice field.

On the other hand, 16 and 17 are a pair of left and right rolling ammunition consisting of coil ammunition, and one rolling ammunition 16 of the rolling ammunition 16 and 17 has the link connecting frame 4 and the seedling. It is provided in a V-shape between it and the platform support frame 6 and acts to maintain the planting work unit 3 in a horizontal state. Further, the other rolling ammunition 17 moves upward from the link connecting frame 4. It is provided in a V-shape between the extended ammunition mounting frame 18 and the left and right ends of the seedling placing table 9 so as to balance the unbalanced load caused by the lateral feeding of the seedling placing table 9. There is.

Further, 19 is an electric cylinder, the upper end of the electric cylinder 19 is connected to an arm portion 4 b protruding laterally from the link connecting frame 4, while the lower end is a seedling table support. It is connected to an arm portion 6a that projects forward from the frame 6. Immediately, a so-called forcible rolling control mechanism for forcibly rolling the planting work part 3 based on the expansion and contraction operation of the electric cylinder 19 is configured between the link connecting frame 4 and the seedling table supporting frame 6. .

Furthermore, reference numeral 20 denotes a rolling detection device arranged in the planting work unit 3, wherein the rolling detection device 20 detects rolling (inclination to the ground) of the planting work unit 3 and a detection value thereof. Is configured to be output to a cylinder control circuit (not shown). That is, the rolling detection device 20 has a pair of left and right stays 21 projecting outward from both left and right ends of the planter case 7, and a bracket 22 projecting forwardly fixedly attached to each of the left and right brackets 22. The swing angle of the detection arm 24 is based on the swing of the detection arm 24 that swings up and down with the support shaft 23 as a fulcrum, and the detection float 24a is provided at the tip, and the detection lever 25a that interlocks with the detection arm 24. And a potentiometer 25 for detecting Then, during work traveling, the left and right detection floats 24a sliding on the paddy field rise and fall in a contradictory manner with the rolling of the planting work section 3, and the left and right potentiometers 25 detect this and output a signal. On the other hand, in the cylinder control circuit, on the other hand, the left and right detection values of the potentiometer 25 are compared to calculate the rolling amount of the planting working unit 3 and the planting is performed contrary to the calculated rolling direction. By outputting an operation signal to the electric cylinder 19 to cause the working unit 3 to roll, the planting working unit 3 is always maintained in a parallel posture with respect to the paddy field regardless of the rolling of the traveling body 1. ing. Reference numeral 26 is a stand of the planting work unit 3 which is detachably attached to the tip of the stay 21.

By the way, the pair of left and right detection floats 24a are respectively disposed in the vicinity of the front of the planting claw 8 located at the left and right outer ends in plan view. That is, a concave notch 11b is formed at the rear end of the bulging portion 11a of the left and right side floats 11, and the detection float 24a is arranged in the notch 11b while the front end of the float is loosely fitted. It has become.

In the embodiment of the present invention configured as described above, the rolling detection device 20 uses the potentiometer 25 to detect the contradictory vertical movement of the left-right detection float 24 a that accompanies the rolling of the planting work section 3. Therefore, the rolling of the planting work section 3 is detected, but the pair of left and right detection floats 24a are provided on the left and right outer ends of the plurality of planting claws 8 arranged side by side in the planting work section 3. Since they are arranged at positions near the front of the planting claw 8 located, rolling detection is performed at the planting positions at the left and right outer ends that are most susceptible to rolling. Therefore, the accuracy of rolling detection can be significantly improved, and by extension, the accuracy of forced rolling control can be improved to perform highly accurate planting work.

Moreover, since the detection float 24a is not exposed to the outside from the planting work unit 3, foreign matters may be caught on the detection float 24a or the detection float 24a may be exposed during the traveling along the ridge. Inconveniences such as contact with an obstacle can be avoided, and as a result, highly accurate rolling detection can be performed, and damage to the detection float 24a can be reliably prevented.

Further, in the above-described embodiment, since the detection float 24a is disposed behind the bulging portion 11a of the side float 11, the swelling portion 11a should contact the flat rice field. The side float 11 is surrounded by the front and one side so that it can be surely protected from obstacles and the like, and the position where the side float 11 is not located can be detected. Since there is no fear of obstructing the flow of muddy water as in the case of being placed in, it is possible to reliably avoid the inconvenience of disturbing the posture of planted seedlings.

Furthermore, in the above-described embodiment, since the front end portion of the detection float 24a is loosely fitted in the notch portion 11b of the side float 11, even if the detection arm 11 has some play, the detection float 24a Will normally move up and down based on the guide action of the cutout portion 11b. As a result, it is possible to prevent the detection accuracy from deteriorating due to backlash, and to ensure high-precision rolling detection for a long period of time. You can

It should be noted that the present invention is not limited to the above-mentioned practical examples, and can be carried out by any riding transplanter such as a field transplanter and a strawberry transplanter other than the rice transplanter, for example. Needless to say.

[0015]

[Operation effect]

 In summary, since the present invention is configured as described above, the pair of left and right rolling detectors that contact the field scene detect the rolling of the transplanting working unit, while the pair of left and right rolling detectors are used. The body is placed on the anterior extension line of the transplanted nail located at the left and right outer ends of the multiple transplanted nails that are arranged side by side in the transplantation work part, so the transplantation of the left and right outer ends that is most susceptible to rolling is performed. Rolling detection is performed on the position, and thus rolling detection accuracy can be greatly improved compared to the conventional method in which rolling detection was performed at a position deviated from the implantation position at the left and right outer ends. Moreover, the control error in the forced rolling control can be reduced as much as possible, and the accuracy of transplantation work can be significantly improved.

Moreover, since the rolling detection body is not exposed to the outside of the transplantation work part, the foreign matter may be caught even when the vehicle is running on a ridge where there are many foreign matter and obstacles. Although it is possible to reduce the number of rolling detections with high accuracy, it is possible to avoid contact with obstacles and avoid the inconvenience that the rolling detection body is damaged.

[Brief description of drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a front view of a main part of a planting work unit.

FIG. 3 is a side view of a main part of a planting work unit showing an arrangement of detection floats.

FIG. 4 is a front view of a main part of the same.

FIG. 5 is a plan view of an essential part of the same.

FIG. 6 is a plan view showing an arrangement of front and rear wheels, a main float, a side float, and the like.

[Explanation of symbols]

 1 Traveling Aircraft 3 Planting Working Part 8 Planting Claw 10 Main Float 11 Side Float 11b Notch 19 Electric Cylinder 20 Rolling Detection Device 24 Detection Arm 24a Detection Float 25 Potentiometer

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Yoshio Ishihito, 667 Izayamacho, Higashi Izumo-cho, Yazuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Address 1 Within Mitsubishi Agricultural Machinery Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A riding transplanter for forcibly rolling-controlling a transplanting work part in which a plurality of transplanting claws are arranged side by side in the left-right direction, in which the transplanting work part is brought into contact with a field scene. In providing a pair of left and right rolling detectors for detecting the rolling of the transplantation work part, the pair of left and right rolling detectors are respectively arranged on the front extension lines of the transplanted nails located at the left and right outer ends. A rolling detection device for a transplanting work unit in a passenger transplanter.