JPH0284104A - Foreign matter-removing device of rice transplanter - Google Patents

Abstract

PURPOSE:To prevent the generation of a mud push by introducing a foreign matter-removing device composed of rotators and disposing an interval- controlling means where the interval of the rotators in the shaft core direction at the upper portion of the rotation passageway of the rotators is smaller than that of the rotators at the lower portion thereof. CONSTITUTION:An interval L1 between rotators 1 at the upper portion of the rotation passageway of the rotators 1 in the shaft core direction is shortened compared with that L2 at the lower portion by an interval-controlling means. A cam 1b and a spring 1c rubbedly contacting with the rotators 1 and controlling the rotators 1 to the posture of a reverse V shape on the front view are attached to a supporting shaft 17a. Gears 1d are formed on the opposing surfaces of two rotators 1, respectively, and the intermeshing of the gears 1d at the upper phase controls a deviation between the positions of the left and right rotators 1 in the rotation direction. Thereby, foreign matters located at positions approximately vertical in the rotation direction of the wheel 16 can be also pushed into the soil with a pair of the left and right rotators 1 without slipping off.

Description

[Detailed description of the invention] [Industrial field of application] The present invention provides a method for removing foreign matter such as straw during rice planting work.
This is a technology that prevents dirt from being caught on a zero-tote, etc., and is pushed out by mud. Specifically, it is a technology that prevents foreign matter from being caught on a soil-leveling float, etc., and pushed into the front position of the soil-leveling float of a planting device, to a point below the lower surface of the soil-leveling float. The present invention relates to a foreign matter removal device for a rice transplanter, in which a wheel for removing dirt is rotatably arranged around an axis in the left and right direction.

[Conventional technology]

Conventionally, as shown in FIGS. 5 and 6, this type of contaminant removal device has a structure in which the outer periphery of the transponder (16) is formed from a plurality of protrusions (16a) juxtaposed in the circumferential direction, and It is known that these projecting pieces (16a) are bent alternately toward both sides in the direction of the rotational axis (Utility Application No. 17399/1989).
No. 3).

[Problem to be solved by the invention]

However, with the above-mentioned conventional device, when pushing foreign matter such as straw under the field, if the foreign matter is located in a left-right orientation along the rotation axis of the wheel, the protrusion protruding to the left side and the right side It is not possible to stably press two points spaced apart in the longitudinal direction of the foreign object by the projecting piece protruding from the top, and the foreign object slides against the projecting piece because it is held down at one point by either the left or right projecting piece. This had the disadvantage that it was not possible to remove foreign substances reliably, and foreign substances were caught on the soil leveling float, causing mud pushing, making it impossible to perform proper planting work.

Moreover, since the protrusions are bent left and right to protrude, the substantial thickness of the wheel in the axial direction becomes large, making it difficult to make contact with the constituent members of the rice transplanter body located above the wheel. In order to avoid this, there is also the disadvantage that restrictions on the arrangement of the wheels and the arrangement of the constituent members become large.

An object of the present invention is to eliminate the above-mentioned conventional drawbacks.

[Means to solve the problem]

In order to achieve this object, the foreign matter removal device according to the present invention comprises a wheel whose outer peripheral portion is composed of a pair of left and right rotating bodies that are relatively movable in the axial direction, and an upper path of the rotational path of the rotating bodies. The present invention is characterized in that a gap regulating means is provided for making the axial gap of the rotating body smaller than the axial gap in the lower path portion.

[For production]

According to the contaminant removal device having this feature, when contaminants are pushed under the field, the contaminants are pushed in by two rotating bodies located at a distance in the axial direction of the wheel. Even if the object is in a sideways position, the two rotating bodies can stably press the foreign matter at two points, thereby preventing the foreign matter from slipping out of the rotating body. Furthermore, in the upper path portion of the wheel, the distance between the two rotating bodies in the axial direction is narrowed, so that the upper part of the wheel is less likely to come into contact with the constituent members of the rice transplanter main body.

〔Effect of the invention〕

Therefore, even if the foreign matter is located horizontally on the left or right,
It is possible to perform a good rice transplanting work by reliably pushing the soil leveling float downward from the lower surface of the float without causing mud pushing due to foreign substances, and it is now possible to arrange the constituent members of the wheel and the rice transplanter main body with fewer restrictions.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Figs. 3 and 4, the rice transplanter has a planting device (A) attached to a link mechanism (
4), and is provided with a hydraulic cylinder (3) for raising and lowering the planting device (A).

The planting device (A) includes a transmission case (5) that receives power from the fuselage (2), three chain cases (6) that receive power from this transmission case (5), and chain cases (6). Two planting arms (7
), a seedling stand (8) on which the matted seedlings (W) are placed,
It is configured for planting six rows with three soil leveling floats (9) placed below each chain case (6). A fertilizing device (B) for supplying fertilizer is attached to the side.

The fertilizer application device (B) includes a hopper (10) that stores granular fertilizer, and a delivery mechanism (11) that delivers the fertilizer in the hopper (10) in synchronization with the operation of the planting arm (7).
, a groove cutting plate (14) that forms a groove in the planned fertilization area of the field (P), and a hose (12) from the feeding mechanism (11).
) is used to supply fertilizer sent to the furrow through the furrower (1).
3) and a soil covering plate (15) for backfilling the trench behind the trencher (13). The groove cutting plate (14
) and the trencher (13) are attached to the leveling float (9) in such a manner that they protrude below the lower surface thereof.

In addition, this rice transplanter is equipped with a foreign matter removal device (C) for pushing foreign matter such as straw waste to a level deeper than the lower end level of the furrower (13) in front of the soil leveling float (9). .

As shown in FIG. 4, the foreign matter removing device (C) includes a plurality of foreign matter removing devices for pushing foreign matter to a position in front of the soil leveling float (9) to a level deeper than the lower end level of the trencher (13). The rings (16) are arranged at intervals on the left and right,
An arm (17) that supports each of the plurality of wheels (16) in a cantilever manner so as to be rotatable around the left and right lateral axes is fixed to a fulcrum pipe (18) that can be freely rotated around the left and right lateral axes,
It is configured to include an interval regulating means. The fulcrum pipe (
18) is to adjust the height of the soil leveling float (9) by operating the depth adjustment lever (19) for planting, and for planting, operate the depth adjustment lever (19) to the smaller depth side. The wheel body (16) is interlocked and connected so that it descends as the wheel moves.

Therefore, the ring body (16) is arranged so that its ground-contacting part is located at the deep level, regardless of the adjustment of the planting depth.

The ring body (16>, as shown in FIGS. 1 and 2,
A pair of star-shaped left and right rotating bodies (1), (1) having teeth (1a) on the circumferential side are rotatably mounted on a support shaft (17a) connected to the arm (17). It is configured so that it is relatively movable in the core direction.

The spacing regulating means controls an axial gap (L1) of the rotating body (1) in an upper path portion of the rotation path of the rotating body (1).
) is smaller than the axial clearance (shi, ) in the lower path portion. Specifically, a cam (1b) and a spring (IC) that slide into sliding contact with the rotating body (1) and restrict the rotating body (1) to an inverted V-shaped posture when viewed from the front are attached to the spindle (17a). It is configured.

Gears (l) are provided on opposing surfaces of the two rotating bodies (1), respectively.
d) 15 are formed, and these gears (1d) mesh with each other in an upward phase to restrict positional deviation of the left and right rotating bodies (1) in the rotational direction.

Thereby, even foreign objects located substantially perpendicular to the rotational direction of the wheel body (16) can be pushed in by the pair of left and right rotating bodies (1) without slipping through.

[Another example]

Other embodiments of the invention will be described below.

B1. In addition to the above-mentioned embodiments, the present invention may be implemented by using a rice transplanter for 4 rows or 5 rows with substantially the same arrangement as described above, or by equipping a machine dedicated to sowing with a wheel. It is also possible.

[2] Note that although reference numerals are written in the claims section for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by the entry.

[Brief explanation of drawings]

The drawings show an embodiment of the impurity removal device for a rice transplanter according to the present invention, in which FIG. 1 is a longitudinal cross-sectional view of a wheel, FIG. 2 is a view taken along the line ■-■ in FIG. 1, and FIG. Plan view of main parts of rice transplanter, No. 4
This figure is a front view of the same, and FIGS. 5 and 6 are a front view and a side view of a wheel body showing a conventional example. (1)...Rotating body, (9)...Grading float, (16)...Ring body, (L1)...
...Axis clearance in the upper path of the rotating body, (C2)
・・・・・・Axis clearance in the lower path of the rotating body. Figure 3

Claims (1)

[Claims] A wheel (16) for pushing foreign matter below the lower surface of the soil leveling float (9) of the planting device is disposed in a position in front of the soil leveling float (9) so as to be rotatable around the axis in the left and right direction. This is a foreign matter removal device for a rice transplanter, which comprises a pair of left and right rotating bodies (1) that are relatively movable in the axial direction on the outer periphery of the wheel (16), and these rotating bodies (1) The axial clearance (L_1) of the rotating body (1) at the upper route part of the rotation route of is defined as the axial clearance (L_1) at the lower route part.
2) A foreign matter removal device for a rice transplanter that is equipped with a gap regulating means to make the gap smaller.