JP2009296991A - Implement for soil puddling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an implement for soil puddling capable of scraping and leveling soil which is liable to pile up in the outer periphery (corner parts) of a field. <P>SOLUTION: The implement 100 for soil puddling is formed so as to divide into two parts composed of a main implement part 100a connected to a traveling machine body T and a subsidiary implement part 100b horizontally rotatably supported to the main implement part 100a, and the implement is equipped with a hydraulic cylinder 6 directing the front face of the subsidiary implement part 100b to the oblique front outside of a machine body by turning the subsidiary implement part. The subsidiary implement part 100b lets water stream extending from the front to the rear flow to a position close to the main implement part when the subsidiary implement part goes forward in a state in which the front face of the subsidiary implement part directs toward the oblique outside of machine body. As a result, soil which is liable to pile up in the outer periphery (corner parts) of the field can readily be scraped and leveled. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a scraping work machine.

2. Description of the Related Art Conventionally, a traveling machine body (specifically, a tractor, a riding management machine) travels with a traveling machine body in a state of being mounted on the rear part, and rotates a tilling rotor by power transmitted from the traveling machine body to perform a farming work on a field. A scratching machine (also referred to as a halo) is known (see, for example, Patent Document 1).

  That is, in the general scraping work machine disclosed in Patent Document 1, it can rotate between the lower side of the chain case 4 and the bracket 3 disposed on both sides of the main frame 2 extending in the width direction. A supported ground breaking work body (a tilling rotor) 12 is provided. Power is transmitted to the crushed soil working body 12 via a transmission shaft connected to the PTO shaft of the traveling machine body.

  A cover body 17 is provided above the crushed soil working body 12. A first leveling plate 18 is connected to the rear portion of the cover body 17, and a second leveling plate 20 is connected to the rear portion thereof. The second leveling plate 20 is plate-shaped, and its front end is pivotally supported by the rear end of the first leveling plate 18 so that the rear side is rotatable in the vertical direction.

Japanese Patent Laid-Open No. 01-137103 (FIG. 1)

By the way, in the above-mentioned scraping work machine, the ground breaking work body 12 and the first and second leveling plates 18 and 20 are arranged so that the water flow from the front to the rear of the machine flows almost straight. For this reason, when performing the scraping work using the above-mentioned scraping work machine, the soil and mud pushed out to the side by the stepping pressure of the traveling machine body escapes to the side as it is because it is difficult to flow toward the center of the body width, In particular, there was a problem that mud when working on the outer periphery side of the field accumulated in the outer periphery (corner) of the field.
Then, the soil accumulated on the outer periphery of the field had to be grounded toward the center of the field separately from the scraping work, and the entire field had to be leveled.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a substitute working machine capable of scraping and smoothing the soil accumulated in the outer periphery (corner) of the field.

In order to achieve the above object, a first aspect of the present invention is directed to a tilling rotor in which a plurality of tilling claws are fixed radially on a rotating shaft rotatably mounted on a work machine body, and above the tilling rotor. In a scraping work machine comprising an upper cover that covers and a leveling plate that is attached to the rear of the upper cover,
A main work machine portion connected to the traveling machine body, a sub work machine portion supported so as to be horizontally rotatable with respect to the main work machine portion, and the sub work machine portion rotating the sub work machine portion. Rotating means for directing the front side of the part toward the front side of the diagonally forward machine body, and the sub work machine part causes the water flow extending from the front to the rear when the front side is advanced with the front side facing the outside of the diagonally machined body. It is characterized by flowing near the part.

According to the first aspect of the present invention, when the scraping operation is performed, the soil pushed out to the outer periphery (corner) of the field by the stepping pressure of the traveling machine body (tractor, riding management machine) has the front face obliquely outward. It will be guided directly toward the field center (the main work machine part side) by the tilling rotor of the sub work machine part facing. At that time, the water flow that flows from the front (farm field outer periphery) to the rear (farm field center) of the sub work machine part is stronger and smoother.
This makes it possible to scrape and smooth the soil that accumulates on the outer periphery (corner) of the field by the sub work machine part facing diagonally forward, and leveling the entire surface of the field more evenly. Is possible.

  In order to achieve the above object, the invention according to claim 2 is characterized in that, in addition to the configuration of the invention according to claim 1, the sub work machine part is one end in the width direction of the tilling rotor and the upper cover. The main work machine part is the other end part and the center part in the width direction of the tilling rotor and the upper cover, and the rotation center axis of the sub work machine part is provided in the radial direction of the rotation axis of the tilling rotor. It is characterized by.

  In order to achieve the above object, the invention according to claim 3 includes, in addition to the configuration of the invention according to claim 1 or 2, a first ground leveling plate provided in the main work machine portion, and the first leveling plate. A second ground leveling plate that is provided on the main plate so as to be foldable and extends behind the sub-working machine part in a non-rotating state, and is provided so as to be foldable on the sub-working machine part. And a third leveling plate deployed behind the sub work machine portion in a state of being in a laid state.

  According to the scraping work machine of the present invention, by providing the sub work machine part that can be rotated to the outside of the diagonally forward machine body, it is possible to easily scrape the soil that is to be accumulated on the outer peripheral part (corner part) of the field. As a result, it becomes possible to level the entire surface of the field more evenly.

A scraping work machine according to an embodiment of the present invention will be described in detail with reference to FIGS.
1 is a plan view of a scraping work machine according to an embodiment of the present invention, FIG. 2 is a plan view for explaining the operation of the scraping work machine in the example, and FIG. 3 is an operation of the scraping work machine in the example. It is a top view for demonstrating.

  As shown in FIGS. 1 to 3, the scraping work machine 100 includes a rotary shaft 11 that is rotatably mounted on the work machine body 1 (however, schematically shown by a broken line in FIG. 1). The cultivating rotor 10 is provided with a plurality of cultivating claws fixed radially, an upper cover 20 covering the top of the cultivating rotor 10, and a leveling plate 30 connected to the rear portion of the upper cover 20.

  Specifically, the work machine body 1 includes a main frame 2, a connecting portion, a gear box 3, a transmission case 4, and a sub frame 5.

  The main frame 2 is a hollow pipe-like frame member extending in the width direction of the machine body, and a connecting portion (not shown) and a gear box 3 are disposed at the center in the width direction. A transmission case 4 is disposed at one end of the frame, and a sub-frame 5 is disposed at the other end.

The connecting part is attached to the rear part of the traveling machine body T (specifically, a tractor, a riding management machine, but only the left and right rear wheels are shown in the figure), and is connected to the front of the main frame 2. It is provided in an extended state.
The gear box 3 is provided with an input shaft 3a that protrudes forward from the inside of the gear box 3 so that power output from the traveling machine body T is input. In addition, an intersecting shaft gear connected to the input shaft 3a is disposed inside the gear box 3, and the transmission direction of the power transmitted from the input shaft 3a is bent 90 degrees toward the transmission case 4 side. It is like that.

Inside the main frame 2 extending from the gear box 3 to the transmission case 4, a power transmission shaft (not shown) that transmits power to the transmission case 4 is rotatably disposed. In addition, a transmission mechanism using a sprocket and a chain for transmitting the power transmitted by the power transmission shaft to the lower tilling rotor 10 is disposed inside the transmission case 4.
On the other hand, a power transmission shaft is not disposed in the main frame 2 from the gear box 3 to the sub-frame 5.

  A rotating shaft 11, a so-called tilling rotor 10, on which a plurality of tilling claws are fixed radially, is rotatably mounted between the lower portion of the transmission case 4 and the subframe 5, that is, in the work machine body 1. The rotary shaft 11 of the tilling rotor 10 is parallel to the lower side of the rotation center axis of the power transmission shaft in the main frame 2, in other words, the axis x1 of the main frame 2 (front and rear center line, indicated by a one-dot chain line in FIG. 1). Are arranged. That is, the rotation axis 11 and the axis line x1 are substantially coincident with each other in plan view (see FIG. 1).

In addition, the work machine body 1 is provided with an upper cover 20 that covers the top of the tilling rotor 10 so as to prevent the soil and mud splashed by the tilling rotor 10 from splashing. Further, a leveling plate 30 (an apron and a leveler) for leveling the soil in the field is attached to the rear portion of the upper cover 20.
In the tilling rotor 10 and the leveling plate 30, the water flow from the front to the rear of the work machine body 1 flows almost straight during the scraping operation.

Further, the tilling rotor 10, the upper cover 20, and the leveling plate 30 (the apron and the leveler) of the scraper working machine 1 are divided into two so that one end side (subframe side) in the width direction of the machine body can be horizontally rotated. Is formed.
If one end side (rotation side) is described as the sub work machine part 100b and the remaining part, that is, the other end side and the central part (fixed side) are described as the main work machine part 100a, the sub work machine part 100b is the tilling rotor 10. The main work machine portion 100a is rotatably supported around a rotation center axis z1 perpendicular to the vertical direction with respect to the rotation axis 11 and the axis x1 of the main frame.

The main frame 2 of the sub work machine portion 100b is the main frame rotating portion 2b, and similarly, the tilling rotor 10 is the tilling rotor rotating portion 10b and the upper cover 20 is the upper cover rotating portion 20b. When the main frame 2 is the main frame fixing portion 2a, the tilling rotor 10 is the tilling rotor fixing portion 10a, and the upper cover 20 is the upper cover fixing portion 20a, the main frame 2 is connected via a hinge 2c having a rotation center on the rotation center axis z1. The frame rotating part 2b and the main frame fixing part 2a are hingedly connected, and the tilling rotor rotating part 10b and the tilling rotor fixing part 10a are connected via a universal joint (not shown) provided at the rotation center on the rotation center axis z1. And the upper cover rotating portion 20b and the upper cover fixing portion 20a are hinged via a hinge (not shown) having a rotation center on the rotation center axis z1. It is.
In addition, you may make it suspend the sub work machine part 100b with one hinge with respect to the main work machine part 100a.

Between the sub work machine part 100b and the main work machine part 100a, a hydraulic cylinder 6 as a rotating means for turning the sub work machine part 100b so that the front surface of the sub work machine part 100b is directed diagonally forward outward. Is installed. Both end portions of the hydraulic cylinder 6 are swingably attached to mounting brackets 7 and 7 projecting from the main frame fixing portion 2a and the rotating portion 2b, respectively, toward the rear of the machine body.
It should be noted that the fact that the front surface of the sub work machine portion 100b faces diagonally forward is outside the width direction center line y2 of the subwork machine portion 100b relative to the width direction center line y1 of the scraping work machine 100 extending in the longitudinal direction of the machine body. This also means that the sub work machine part 100b is rotated so that the crossing occurs at the rear of the machine body (see FIGS. 2 and 3).

The hydraulic cylinder 6 includes a remote controller (not shown) that can extend and contract the rod at hand while riding on the traveling machine body T.
As shown in FIG. 1, when the front surface of the main work machine part 100a and the front surface of the sub work machine part 100b are flush with each other, if the rod of the hydraulic cylinder 6 is shortened by the remote controller, the sub work As shown in FIG. 2, the machine part 100b has a rotation center axis z1 so that its front face faces the diagonally forward machine body and its rear face faces the diagonally backward machine body side (main work machine part 100a side). It rotates in the clockwise direction in the figure as the center of rotation.

For this reason, in order to avoid interference with the rear surface of the rotating sub work machine part 100b, one end of the main work machine part 100a is formed one step higher than the rear surface of the sub work machine part 100b. The rear surface of the portion 100b is embedded in the lower surface side of the main work machine portion 100a.
When the sub work machine part 100b rotates, a substantially triangular gap (shown in FIGS. 2 and 3) generated between the opposing surfaces of the main work machine part 100a and the sub work machine part 100b is stretchable. A cloth material, a rubber sheet member, or a bellows member (none of which is shown) is closed.

  In addition, when the rod of the hydraulic cylinder 6 is extended by the remote controller in a state where the front surface of the sub work machine portion 100b faces obliquely forward, the sub work machine portion 100b is attached to the front surface of the main work machine portion 100a. The machine part 100b is rotated counterclockwise in the figure until the front surface of the machine part 100b is flush with the rotation center axis z1.

When the front surface of the sub work machine part 100b is flush with the front surface of the main work machine part 100a, the main work machine part 100a and the sub work machine part 100b almost straighten the water flow from the front of the machine body to the rear. It is supposed to flow.
On the other hand, in a state where the front surface of the sub work machine portion 100b faces the outer side of the diagonally forward machine body and the rear surface faces the inner side of the diagonally rear machine body, the main work machine part 100a substantially flows the water flow from the front of the machine body to the rear. In contrast to the straight flow, the sub work machine portion 100b is configured to flow a water flow from the front to the rear of the sub work machine portion 100b obliquely toward the back of the main work machine portion 100a (see FIG. 3).

  That is, soil, muddy water, and water surface dreds are flowed obliquely toward the center of the machine body, that is, toward the center of the farm field, directly by the tiller rotor rotating part 10b of the sub work machine part 100b bent obliquely backward from the universal joint. As a result, the momentum of the water flow is stronger and smoother.

  Accordingly, when the scraping work is performed on the outer periphery (corner) of the field with the front surface of the sub work machine portion 100b facing obliquely forward, the soil that tends to accumulate in the outer periphery (corner) of the field is centered in the body width. It is possible to easily scrape and grind the part obliquely, so that it is not necessary to perform the earthing work toward the center of the field separately from the pasting work as in the past.

Note that the rotating means is not limited to a hydraulic cylinder, and for example, an air cylinder, an electric motor, a hydraulic motor, or a ball screw mechanism may be used.
Further, the rotating means is not provided only on the rear side of the main frame 2 but may be provided on the front side of the main frame 2 or may be provided on the upper cover 20.

  Further, the tilling claws of the tilling rotor fixing portion 20a and the tilling rotor rotating portion 20b sandwiching the universal joint from both sides in the body width direction are provided with a phase difference and a distance corresponding to the provision of the universal joint. It is arranged with a gap. Therefore, even if the tilling rotor 20 is rotated in a bent state in the middle in the longitudinal direction, the tilling claws sandwiching the universal joint from both sides in the body width direction do not interfere with each other.

  Next, the leveling plate 30 will be described. The scraping work machine 100 includes a leveling plate 30A (apron) and a leveling plate 30B (first leveling plate) connected to the upper cover fixing portion 20a of the main work machine portion 100a. Leveler) and a leveling plate 30C as a second leveling plate that is provided on the leveling plate 30A (apron) of the first leveling plate so as to be foldable and is deployed behind the non-rotating sub-worker part 100b. (Apron) and leveling plate 30D (leveler), and the upper part of the sub work machine part 100b in a state that the front cover of the sub work machine part 100b is foldably provided and the front face thereof faces obliquely outward. A leveling plate 30E (apron) and a leveling plate 30F (leveler) are provided as third leveling plates deployed behind the cover rotating portion 20b.

  As shown in FIG. 2, the leveling plate 30A (apron) is attached to the rear part of the upper cover fixing part 20a so as to be swingable up and down, and the rear end part in contact with the soil flattens the cultivated soil surface. To level the ground. On the lower surface side of the leveling board 30A (apron), a large rake (not shown) is provided for pouring straw or grass that could not be treated with tilling claws into the soil.

A leveling plate 30B (leveler) is disposed at the rear end of the leveling plate 30A (apron) to flush the soil and muddy water of the farm field from the front to the rear of the aircraft almost straight. The leveling plate 30B (leveler) has a plate-like shape, and the rear portion of the leveling plate 30B (leveler) is pivotally supported by the rear portion of the leveling plate 30A (apron). Yes.
A large rake is provided on the lower surface of the leveling plate 30A (apron), and a small rake is provided on the lower surface of the leveling plate 30B (leveler).
In addition, a vertical position adjustment mechanism 8 that enables the vertical position adjustment of the leveling plate 30B (leveler) is provided between the leveling plate B (leveler) and the upper cover fixing portion 20a.

  A ground leveling plate 30C (apron) and a leveling plate 30D (leveler) as a second leveling plate are integrally connected to one end (subframe 5 side) of the leveling plate 30A (apron). It is provided so that it can be opened and closed (foldable) toward the rear of the moving part 20b. Between the leveling plate 30C (apron) and the leveling plate 30A (apron), a hinge mechanism portion 9a (shown in FIG. 1) that opens and closes by remote control operation is provided, and the second leveling plates 30C and 30D. The opening / closing operation can be performed at hand while riding on the traveling machine body T.

Specifically, the second leveling plates 30C and 30D are deployed toward the rear of the non-rotating sub-worker unit 100b, and the first leveling plate is used when the sub-worker unit 100b is rotated. It is designed to be folded on 30A and 30B.
A large rake is provided on the lower surface of the leveling plate 30C (apron), and a small rake is provided on the lower surface of the leveling plate 30D (leveler).

At the rear part of the upper cover rotating part 20b of the sub work machine part 100b, the upper cover rotating part in a state where a leveling board 30E (apron) and a leveling board 30F (leveler) as a third leveling board are integrally connected. It can be opened and closed (foldable) toward the rear of 20b. The third leveling plates 30E and 30F are formed in a triangular shape in a plan view so as not to interfere with the first leveling plates 30A and 30B during deployment (see FIG. 1).
Further, a hinge mechanism portion 9b (shown in FIG. 3) that opens and closes by remote control operation is provided between the upper cover rotating portion 20b and the leveling plate 30E (apron), and this third leveling plate 30E. , 30F can be performed at hand while riding on the traveling machine body T.

Specifically, the third leveling plates 30E and 30F are deployed toward the rear of the upper cover rotating portion 20b of the sub work machine portion 100b whose front surface is turned obliquely outward from the front machine body, and the sub work machine portion 100b. When the upper cover rotating portion 20b is not rotated, the upper cover rotating portion 20b is folded toward the upper cover rotating portion 20b.
A large rake is provided on the lower surface of the leveling plate 30E (apron), and a small rake is provided on the lower surface of the leveling plate 30F (leveler).

  The leveling plate 30C (apron) or the leveling plate 30E (apron) does not disturb the water flow that is scratched and sent by the tilling rotor rotating portion 10b, and the leveling plate 30D (leveler) is left as it is. ) Or the rear of the leveling plate 30F (leveler).

  When the second leveling plates 30C and 30D are deployed, the water flow flowing behind the leveling plate 30D (leveler) flows behind the leveling plate 30B (leveler) as shown by the white arrow in FIG. Like the water flow, it flows almost straight toward the rear of the aircraft. On the other hand, as shown in FIG. 3, the second leveling plates 30C and 30D are folded toward the upper cover fixing portion 20a, and the third leveling plates 30E and 30F are located behind the upper cover rotating portion 20b. In the unfolded state, the water flow that flows behind the leveling plate 30F (leveler) flows obliquely toward the center of the body width as indicated by the white arrow in FIG. .

As described above, according to the scraping work machine 100 of the present invention, when performing the scraping work, the soil that is pushed to the outer peripheral part (corner part) of the field by the stepping pressure of the traveling machine body (tractor, riding management machine) T and accumulates. Is guided directly toward the field center (the main work machine part side) by the tilling rotor rotating portion 10b of the sub work machine part 100b whose front face is directed obliquely forward. At that time, the water flow flowing from the front (farm field outer peripheral part) to the rear (farm field center part) of the sub work machine part 100b is stronger and smoother.
As a result, the sub work machine portion 100b facing obliquely outward from the front body can scrape the soil that accumulates in the outer periphery (corner) of the field and level the entire surface of the field more evenly. It becomes possible.

  In addition, contaminants such as dredging on the surface of the water are surely pushed back to the inside of the farm field immediately after processing together with the muddy water flowing obliquely rearward toward the center of the machine body width direction by the sub work machine portion 100b. For this reason, no wrinkles or the like remain in the overlapping portion of the field, and the state of the well-leveled overlapping portion is maintained, and as a result, the entire surface of the field can be leveled more evenly. At the same time, it is possible to omit the preparatory work that has been performed conventionally.

  In the present embodiment, the tilling rotor rotating portion 10b on the sub frame 5 side is configured to rotate horizontally. However, the present invention is not limited to this, and the transmission case 4 side of the tilling rotor 10 is horizontal. You may comprise so that it may rotate, and you may comprise so that both the width direction both ends of the tilling rotor 10 may rotate horizontally.

It is a top view of the scraping work machine by one embodiment of the present invention. It is a top view for demonstrating operation | movement of the scraping work machine in the example. It is a top view for demonstrating operation | movement of the scraping work machine in the example.

Explanation of symbols

100 ... powder work machine 100a ... main work machine part 100b ... sub work machine part

DESCRIPTION OF SYMBOLS 1 ... Work machine main body 2 ... Main frame 10 ... Tilling rotor 11 ... Rotary shaft 20 ... Upper cover 30 ... Leveling plate 30A ... Leveling plate (apron) (first leveling plate)
30B ... Leveling plate (leveler) (first leveling plate)
30C ... Leveling plate (apron) (second leveling plate)
30D ... Leveling plate (leveler) (second leveling plate)
30E ... Leveling plate (apron) (third leveling plate)
30F ... Leveling plate (leveler) (third leveling plate)

T ... Travel aircraft (tractor, passenger management machine)
x1 ... main frame axis y1 ... width direction center line y2 of the scraping work machine ... width direction center line z1 of the sub work machine part rotation center axis of the sub work machine part

Claims (3)

A tilling rotor in which a number of tilling claws are fixed radially on a rotating shaft that is rotatably mounted on the work machine body, an upper cover that covers the top of the tilling rotor, and a rear portion of the upper cover. In a scraping work machine that includes a leveling plate, and advances along with the traveling of the traveling machine body to scrape the field,
A main work machine portion connected to the traveling machine body;
A sub work machine part supported so as to be horizontally rotatable with respect to the main work machine part;
Rotating means for rotating the sub work machine part to turn the front surface of the sub work machine part diagonally forward to the outside of the machine body;
And the sub work machine part causes a water flow from the front to the rear to flow closer to the main work machine part when moving forward with the front face directed to the outside of the oblique machine body.   The sub work machine part is one end part in the width direction of the tilling rotor and the upper cover, and the main work machine part is the other end part and the center part in the width direction of the tilling rotor and the upper cover, 2. The scraping work machine according to claim 1, wherein a rotation center axis of the sub work machine part is provided in a radial direction of the rotation shaft of the tilling rotor. 3. A first leveling plate provided in the main work machine part;
A second leveling plate provided on the first leveling plate so as to be foldable and deployed behind the sub-working machine part in a non-rotating state;
A third leveling plate that is foldably provided on the sub work machine part and that is developed behind the sub work machine part in a state where the front surface is inclined obliquely toward the front machine body;
The pricking work machine according to claim 1 or 2, characterized by comprising:

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