JPH0536002B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for producing root vegetables in which a plow body mounted on a towing vehicle or a work vehicle is used to deeply dig up the roots of the roots to make the roots easy to harvest. This paper relates to improvements to the plow bodies in harvesting machines.

The above-mentioned type of harvester for root vegetables requires a strong traction force because the plow body acts deeply into the soil. It is required to make it as small as possible.

The present invention has been made to meet this need.

In this type of root vegetable harvesting machine, the present invention allows the plow body to work deeply into the soil.
We focused on the fact that the connecting part between the shank and the moldboard that supports it has a large effect on traction resistance, and by reducing the traction resistance of this connecting part, we reduced the overall traction resistance while improving the traction resistance. With the aim of obtaining a plow body that exhibits excellent digging performance, we have conducted various researches, and have formed a continuous moldboard on the lower end of the shank, and created a structure in which the side wall surface of the shank and the guide surface of the moldboard are connected. This work was completed based on the result that when formed continuously along one surface, a plow body was obtained which exhibited good digging performance with significantly reduced traction resistance.

For this reason, in the present invention, a longitudinally long mold board is formed integrally and continuously with the shank at the lower end side of the shank formed in a vertically long plate shape, and the guiding surface of the mold board The present invention proposes a plow body for a root vegetable harvester, characterized in that one of the left and right side wall surfaces of the shank is formed to be continuous along one surface.

Next, an example of implementation will be described in detail with reference to the drawings.

In Fig. 1, a is a tractor, and b is a towing vehicle.
is a coupling device installed at the rear of the tractor a;
C is a root vegetable harvester connected to the rear of the tractor a via its connecting device b, and the tractor a and the connecting device b are shown by chain lines.

The tractor a is a normal four-wheeled riding type tractor and is equipped with a lift arm 10 at the rear of the body that is operated to raise and lower by a hydraulic device.

The coupling device b is a normal three-point hit type coupling device consisting of a top link 20 and left and right lower links 21, 21, which are connected to the rear part of the body of the tractor a so as to be vertically rotatable. A lift arm 10 provided at the rear of the body of the tractor a is connected to the body of the tractor a, and the lift arm 10 is operated by a hydraulic system operated by an engine installed in the body of the tractor a to freely move up and down.

The root vegetable harvesting machine c has two guide members 4 formed in a long cylindrical shape on a machine frame 3 (mast) formed to be connected and supported by a coupling device b installed at the rear of the body of the tractor a. , 4 are fixedly supported in parallel in the front and back with their axial directions aligned in the left-right direction, as shown in FIG. It is constructed by supporting a pair in parallel.

As shown in FIG. 1, the plow body P includes a shank 5 formed into a vertically long plate shape and equipped with a blade portion 50 for cutting soil on the front edge side.
A longitudinally long mold board 7 is integrally and continuously formed at the lower end of the shank 5, and a blade part 50 formed at the front edge of the shank 5 is mounted on the front edge of the mold board 7. The installed plow tip part 7
0, and the guiding surface 7 of the mold board 7 guides the cultivated soil cut by the plow tip part 70 thereof.
3, the shank 5 is formed so that the shank 5 is continuous with one side wall surface 5a of the left and right side wall surfaces of the shank 5, as shown in FIG.
It is formed on the same surface as one side wall surface 5a of.

Furthermore, the left and right plow bodies P, P are connected to fitting cylinder portions 5 provided in the upper part of each shank 5 in parallel in the front and back.
1 and 51 are fitted onto the two guide members 4 and 4, respectively, so that the shank 5 and 5 are supported so that they can be freely displaced left and right, with the shank 5 and 5 facing each other in the left and right directions. And between each shank 5 of the plow bodies P, P arranged in a pair on the left and right of the machine frame 3 and the machine frame 3, there is a rotatably extending between the pair of side frames 30, 30 on the left and right of the machine frame 3. The screw portions 60a, 60a on the left and right outer ends are supported by the frame 30.
a screw rod 60 protruding outwardly; and a female screw 61 integrally provided on the shank 5,5 of each plow body, which is screwed together with the threaded portions 60a, 60a of the screw rod 60.
An expansion/contraction mechanism 6 consisting of 61 is provided, and by the operation of this expansion/contraction mechanism 6, the width d of the left and right distance between the parallel plow bodies P, P can be adjusted in the field as shown in Fig. 3. It is configured to expand or contract in accordance with the width of the root portion of the root vegetable W on the left and right sides.

Further, as shown in FIG. 3, the guide surfaces 7a, 7a of the mold board 7 of the plow bodies P, P have a narrower interval d on the lower side so that they face each other in an inverted figure-eight shape when viewed from the front. In addition, this guiding surface 7
As shown in Fig. 1, it is installed so that it gradually rises toward the rear.

The illustrated embodiment is a harvester configured for digging up burdock, and the vertical length of the cutting blade-shaped shank 5 of the plow body P is approximately 30 cm at the part that acts into the soil. In addition, the guiding surface 7a of the mold board 7 that is continuous to the lower end side of the shank 5
The inclination angle θ with respect to the horizontal plane when viewed from the front is approximately
It is set at 60 degrees.

In addition, in the means of the present invention, an expansion/contraction mechanism 6 provided between the shank 5, 5 of the plow bodies P, P and the machine frame 3 is provided.
In the embodiment, a turnbuckle is used which moves the shanks 5, 5 in opposite directions by fitting a tool into a hexagonal nut portion 62 provided on the circumferential surface of the intermediate portion of the screw rod 60 and rotating the screw rod 60. However, it may be a hydraulic jack type using a hydraulic cylinder, or a plurality of engagement holes may be provided in series in the axial direction in the guide member 4, and an engagement corresponding to one of the engagement holes may be provided. A hole is provided in the fitting cylinder part 51, and the fitting cylinder part 51 is moved to open the fitting cylinder part 5.
This is done by selecting and overlapping the engaging hole 1 with one of the engaging holes provided in the guide member 4, passing the engaging pin through them, and fixing the fitting cylinder part 51 at a desired position. It may be configured as appropriate, such as by replacing the engagement pin, or may be omitted.

Further, in the illustrated embodiment device, 8, 8 is a rod-shaped root vegetable lead tool provided so as to extend rearward from the rear end of each mold board 7, 7, and is designed to sandwich root vegetables without holding soil. act. Further, y indicates a space formed in the soil below the mold boards 7, 7 of the pair of opposing plow bodies P, P during the digging operation.

The thus constructed embodiment apparatus operates as follows.

The plow body P has a longitudinally long moldboard 7 integrally and continuously formed at the lower end of a shank 5 formed in the shape of a vertically long plate, and has a guiding surface 7a for guiding the tilled soil of the moldboard 7, and a shank. Since the side wall surface 5a of one of the left and right side wall surfaces of the shank 5 is formed in a continuous form along one surface, the connecting portion between the shank 5 and the mold board 7 is in a state where it has disappeared. Therefore, the traction resistance of this connection part is the same as the traction resistance of the guiding surface 7a of the mold board 7 that guides the cultivated soil.
The traction resistance of the plow body P is significantly reduced.

As explained above, the plow body in the root vegetable harvesting machine according to the present invention is configured as described above.
Guide surface 7a for guiding cultivated soil of mold board 7
is continuous along one side wall surface 5a of the left and right side wall surfaces of the shank 5, and the traction resistance of the connecting portion between the shank 5 and the mold board 7 is expressed as the induction of the mold board 7. Since the traction resistance of the plow body P is made to be the same as the traction resistance of the surface 7a and is significantly reduced, root vegetables can be harvested satisfactorily even when pulled by a tractor with a small horsepower.

[Brief explanation of drawings]

Fig. 1 is a side view showing a longitudinal section of a field when the apparatus according to the embodiment of the present invention is in the working state, Fig. 2 is a plan view of the main parts of the same device, and Fig. 3 is the main part of the same device in the working state. FIG. Explanation of drawing symbols, P...Ploughed body, W...Root vegetable, Y
...space, a...tractor, b...coupling device, c
... Root vegetable harvester, 10 ... Lift arm, 2
0... Top link, 21... Lower link, 3...
... Machine frame (mast), 30 ... Side frame, 4 ... Guide member, 5 ... Shank, 50 ... Blade section, 51 ...
Fitting cylinder part, 6... Expansion/contraction mechanism, 60... Screw rod, 6
0a...Thread part, 61...Female thread, 62...Hexagonal nut part, 7...Mold board, 7a...Guiding surface, 70...Plough tip part, 8...Root vegetable reed tool.

[Claims]

1. In a laminating apparatus in which a conveying device and a swinging mechanism are provided above the swinging mechanism, and the fabric sheet fed hanging down to the swinging mechanism is swung and folded on the carrying device, the swinging device is installed vertically and parallel to each other. 1. A fabric sheet stacking device comprising a plurality of rollers, wherein the hanging fabric passes between the upper and lower rollers in sequence and is discharged by rotation of the rollers. 2. In a laminating apparatus in which a conveying device and a swinging mechanism are provided above the swinging mechanism, and the fabric sheet that is supplied hanging down to the swinging mechanism is swung and folded on the carrying device, the swinging device is connected to a swinging shaft. It consists of a supported swinging arm and a plurality of rollers supported by the swinging arm and installed vertically in parallel.The swinging arm is formed by an opening/closing arm and a fixed arm around a swinging axis. A fabric sheet laminating device characterized in that rollers supported by fixed arms are arranged vertically and alternately in parallel.