JP3075672B2 - Riding excavator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding digging machine for digging a drainage ditch or the like of surface water stagnant on a rice field while traveling along a crop line.

[0002]

2. Description of the Related Art Generally, in a paddy field in which seedlings have grown to some extent, surface water is drained from drainage trenches dug in the field to maintain the vitality of the roots in the later stages of growth and to promote the growth of the seedlings. Drying, so-called "drier drying", is performed. To dig such a drainage ditch or the like, a riding ditching machine in which a grooving portion is connected to a rear portion of a traveling body is used. However, in the conventional riding trench excavator, the grooving section provided with the grooved body is held at a fixed position with respect to the traveling body, so if there is unevenness on the rice field surface, the drainage ditch is formed as the body travels. If the depth varies and multiple grooves are provided, the grounding condition differs for each groove, causing unevenness in the depth of the grooves. In addition, there was a problem that it was not possible to dig efficiently.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and has a pair of left and right grooved members provided in a groove cut portion, which have irregularities on a rice field. However, it is an object of the present invention to provide a riding digging machine capable of constantly and efficiently digging a groove having an appropriate depth.

[0004]

In order to solve the above-mentioned problems, a technical measure taken by the present invention is to provide a groove cut portion connected via a lifting mechanism at the rear of a traveling body to allow the vehicle to travel. Along with this, a riding ditcher who dug a ditch on the rice field,
A pair of left and right groove forming members are provided in the groove cutting portion, and a support frame for supporting the above groove forming member is rotatably mounted on an elevating mechanism via an elastic mechanism. It is characterized by being configured to be able to roll freely along the way, and a riding groove that is provided with a groove notch connected via a lifting mechanism at the back of the traveling body so that a groove is dug on the rice field surface as the aircraft travels In the excavator, a pair of left and right groove forming members is provided in the groove cutting portion, and a support frame for supporting the groove forming member is rotatably attached to the elevating mechanism via an elastic mechanism. While configuring the body to roll freely along the rice field,
A sensing element for sensing a rice field surface is provided at an intermediate portion between the left and right facing of the grooved body, and the groove cutting portion is adjusted up and down in connection with the sensing of the sensing element.

[0005]

According to the present invention, therefore, according to the present invention, when the traveling machine is caused to travel along the seedling attachment strip, the groove cut portion connected via the lifting mechanism is dug into the rice field with a pair of left and right groove forming members. go. And since the left and right grooved bodies supported by the rotatable support frame roll along the rice field, the left and right grooved bodies are in contact with the rice field in the same state to efficiently dig drainage grooves of the same depth Can be. In addition, the sensor that senses the rice field surface is provided in the middle part between the left and right sides of the grooved body. Since the cut groove portion digs the drainage port with a pair of left and right grooved bodies, the drainage groove having an appropriate depth can always be dug smoothly.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a traveling body of a riding trench excavator using a six-row planting planter, and a driving operation unit 3 having a handle 2 is provided at a front portion of the traveling body 1. A driver's seat 4 is provided at the rear, and a grooved portion 6 is connected to a rear portion of the traveling body 1 via a lifting mechanism 5 which moves up and down by operation of a hydraulic device. 1a is a front wheel, 1b is a rear wheel.

[0007] Reference numeral 7 denotes a traveling machine side hitch provided in the elevating mechanism 5, and 8 denotes a groove-cut side hitch connected to the traveling machine-side hitch 7. The groove-cut side hitch 8 has a rear surface in the left-right direction. A support frame 9 is mounted to be vertically rotatable via a support shaft 10 in the front-rear direction. A pair of left and right grooved bodies 11, 11 are supported at both ends of the support frame 9, and a groove cutout 6 is provided at an intermediate portion between the left and right opposing grooved bodies 11, 11 in connection with the sensing of the rice field. A sensor 12 for adjusting the elevation is provided.

As shown in FIG. 3, a weight bracket 14 is erected from the upper surface plate 13 of the groove-cut side hitch 8, and the right and left rolling members are provided between the weight bracket 14 and the support frame 9. Spring 15, 15
The rolling spring 1
An elastic mechanism 16 is configured to hold the support frame 9 in a horizontal posture by the urging of the support frame 9 and to rotate the support frame 9 against the urging. The groove forming bodies 11 and 11 are freely rollable along the rice field. Reference numerals 17, 17 denote left and right lock plates provided on the upper surface of the support frame 9. When the lock plate 17 is rotated to enter below the upper surface plate 13, the rolling of the groove bodies 11, 11 is locked. You. Reference numeral 18 denotes a rotation fulcrum of the lock plate 17.

The groove body 11 includes a bottom plate 11a, a side plate 11
b and the inclined side plate 11c are formed in a boat shape having a sharp end, and the left and right groove forming bodies 11, 11 are formed on the left and right end sides of the six-row plantation by the support rods 19, 19 attached to the support frame 9. It is fixed so as to be located between the planting strips. And the distance between the planting strips is, for example, 33 cm to 30 c.
m so that the support rod 1 can cope with this.
9 can be changed. That is, FIG.
As shown in the figure, mounting plates 20 and 21 are fixed at both ends of the support frame 9 at a predetermined interval.
0, 21 and bolt holes provided in the support rod 19, bolts 22
And a support rod 19 is supported between the mounting plates 20 and 21. A spacer 23 is interposed between the support rod 19 and one of the mounting plates 20.
By changing the position of the support rod 19 between the support rod 19 and the other mounting plate 21, the mounting position of the support rod 19 is changed from the state shown in FIG. The mounting position can be changed to the state. FIG. 8 is an overall rear view showing a state where the mounting position is changed. 24 is a spring washer, 2
5 is a fastening nut.

The sensor 12 is constituted as follows by a sled 26 sliding on a rice field provided at an intermediate portion between the left and right opposing grooves 11. That is, as shown in FIGS. 4 and 5, reference numeral 27 denotes a support bracket fixed below the support shaft 10 of the support frame 9;
The horizontal bracket 29 provided at the lower end of the rear bracket 29 extends rearward and downward from the support bracket 27,
The rear end of the sled 26 is attached to the rear bracket 29 by a fulcrum shaft 30.
, And a bracket 31 provided on the sled body 26 is connected to a horizontal bracket 28 via a link mechanism 32 so that the sled body 26 can freely swing up and down around the fulcrum shaft 30.

At the front end of the horizontal bracket 28, a swing arm 34 pivotally mounted with a sensing rod 33,
5 is coaxially pivotally supported with a swing arm 36 having a predetermined angle. On the other hand, a sensing plate 39 provided with an upper slot 37 and a lower slot 38 is pivotally attached to the tip of the bracket 31. The pivot pin 35 is loosely fitted in the upper slot 37, and a sled is provided. When the body 26 swings up and down by sensing the rice field, the vertically moving sensing plate 39 swings the coaxial swing arm 34 and the swing arm 36, and the sensing rod 33 operates the hydraulic device to move up and down the grooved portion 6. It is designed to adjust. Reference numeral 40 denotes an adjusting wire stopped in the lower slot 38, and reference numeral 41 denotes a return spring of the swing arm 36.

In the above-described configuration, if the traveling body 1 is caused to travel along the planting strips, the groove cutting portions 6 connected to the traveling body 1 will have a pair of left and right groove forming bodies located between the planting strips. At 11 dig a drainage ditch on the rice field. At this time, the left and right grooves 11
If the earth pressure on the rice field acting on the groove 11 is different, the support frame 9 supporting the grooved body 11 rotates against the bias of the rolling spring 15 constituting the elastic mechanism 16, so that the left and right grooved bodies 11 are rotated. , 11 can always be rolled along the rice field to dig a drain ditch of the same depth on the left and right.

When the sled body 26 sliding on the rice field surface along with the movement of the aircraft senses a change in unevenness on the rice field surface and swings up and down,
In conjunction with this, the sensing plate 39 moves up and down to move the pivoting fulcrum pin 35 at the upper end edge or the lower end edge of the upper long hole 37, and the coaxial swing arm 34 and the swing arm 36
Are simultaneously rotated. Then, the sensing rod 33 pivotally attached to the swing arm 34 operates the hydraulic device to move the lifting mechanism 5 up and down.
Since the grooved section 6 connected by the vertical movement is moved up and down, the left and right grooved bodies 11, 11 are moved up and down while rolling along the rice field surface, and a drainage groove of an appropriate depth is always formed on the rice field surface between the planting strips. It can be dug efficiently.

Further, even if the distance between the planting strips changes, the spacer 2
Since the distance between the left and right grooved bodies 11 can be changed only by changing the number 3, it is possible to easily cope with the problem. In performing the grooving work, a weight is attached to the weight bracket 14 in order to surely dig the groove, and the weight of the grooving portion 6 is increased.

[0015]

In summary, the present invention relates to a riding digging machine in which a grooving portion connected via a lifting mechanism is provided at the rear of a traveling body to dig a groove on a rice field as the body travels. , While providing a pair of left and right grooved body in the groove cut portion,
A support frame for supporting the above-mentioned grooved body is rotatably mounted on the elevating mechanism via an elastic mechanism, and the left and right grooved bodies are configured to be freely rollable along the rice field surface, and the rear of the traveling machine body. In a riding digging machine in which a grooving portion connected via an elevating mechanism is provided so that a groove is dug on a rice field surface as the fuselage travels, a pair of left and right grooving members are provided in the grooving portion. A support frame for supporting the groove body is rotatably mounted on the elevating mechanism via an elastic mechanism, so that the left and right groove members can be freely rolled along the rice field surface, and the left and right opposing groove members are opposed to each other. A sensor for sensing the rice field surface is provided at an intermediate portion between them, and the groove cut portion is moved up and down in conjunction with the detection of the sensor, so that a drain groove or the like is formed on the rice field at the groove cut portion connected to the traveling vehicle. When digging, place the left and right on the rotatable support frame attached via the elastic mechanism. Since the work groove body is supported,
Grooves of the same depth can be dug with the left and right grooved bodies rolling along the rice field. And, during running of the aircraft, even if there is unevenness on the rice field surface, since the sensor provided in the middle part between the left and right facing of the grooved body is linked to detect the rice field and the groove cutting part is adjusted up and down, With a pair of left and right grooved bodies, a groove with an appropriate depth can always be dug smoothly and efficiently.

[Brief description of the drawings]

FIG. 1 is an overall plan view.

FIG. 2 is an overall side view showing a sensing body.

FIG. 3 is a rear view of a groove cut portion.

FIG. 4 is a side view of the sensing body.

FIG. 5 is a rear view of the sensing body.

FIG. 6 is an explanatory diagram of the operation of the above.

FIG. 7 is an enlarged view showing a mounting state of a support rod of the groove forming body and a mounting frame.

FIG. 8 is an explanatory view of the operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running body 5 Elevating mechanism 6 Groove cutting part 9 Support frame 11 Groove body 12 Detector 16 Elastic mechanism

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01B 63/10-63/114 A01B 13/00

Claims (2)

(57) [Claims] 1. A riding grooving machine in which a grooving portion connected via an elevating mechanism is provided at the rear of a traveling body so as to dig a groove on a rice field surface as the vehicle travels. A pair of grooves is provided, and a support frame for supporting the grooves is rotatably mounted on the lifting mechanism via an elastic mechanism so that the left and right grooves can be rolled freely along the rice field. A riding digging machine characterized by comprising. 2. A riding groove excavator in which a grooving portion connected via an elevating mechanism is provided at the rear of a traveling body to dig a groove on a rice field as the vehicle travels. A pair of grooved bodies is provided, and a support frame that supports the grooved bodies is rotatably mounted on the lifting mechanism via an elastic mechanism, so that the left and right grooved bodies can be freely rolled along the rice field surface. A riding digging machine provided with a sensing element for sensing a rice field surface at an intermediate portion between the left and right facing of the above-mentioned grooved body, and adjusting the grooving portion in conjunction with the sensing of the sensing element. .