JPS6181712A - Lift link apparatus seedling planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a lifting link device for a seedling transplanter.

Problems to be Solved by the Invention Since the seedling transplanter performs seedling planting work while traveling through a field with a deep and soft soil tiller, it is necessary to adjust the running vehicle transport and the seedling planting device according to changes in the soil tiller. Normally, the seedling planting device is always propelled along the soil surface at a constant height by adjusting the relative position of the seedling planting device up and down. If there is a large vertical change, the planting posture and position of the seedlings will change easily.

Means for Solving the Problem This invention provides seedlings on the upper and lower sides of a rear wheel interlocking case (3), which is equipped with a shaft (2) at both left and right ends to drive a rear wheel (1). The support shaft (7) (8) arm (9) αQ is connected to the support shaft (7) (8) on which the upper link (5) and the lower link (6), which move up and down by connecting the transplantation device (4) and move up and down, are pivoted so that they can move up and down. This is the configuration of the lifting link device for the seedling transplanter.

Functions and Effects of the Invention As the seedling planting machine moves forward, the seedling planting device (4) is linked to perform seedling planting on the advancing soil surface, but it is supported by the rear wheels (1) that rotate on the soil tiller. The vertical position of the rear wheel interlocking case (3) and the seedling planting device (4), which is located on the rear side and is pulled and propelled on the soil surface, is raised and lowered according to changes in the depth of the soil tiller. , the top link (5) and the bottom link (6
) refers to the arm (9) QO support shaft (7) (8) which lifts and lowers the rear end seedling planting device (4) part while maintaining a parallel posture around the pivot point (7) (8). This arm (9
) is located at the top of the interlocking case (3) and the upper link (5
), and the arm α0 is the supporting shaft (7) of the interlocking case (3
) and are pivoted as the supporting shafts (8) of the lower link (6), so these supporting shafts (8)
It is easy to set the seedling transplanter in a position that is as close to the front as possible and lowered to the lower side. It is possible to reduce the inclination of the seedling planting device (4) and the deviation in the front and back position during the planting, and the configuration is simple.

Embodiment In the illustrated example, α◇ is a vehicle body, and the front wheel (2), which can be steered freely on both left and right sides, is mounted on an axis θJ, and is provided to be driven in conjunction with the prime mover α→ mounted on the upper part. In addition, an interlocking cane (3) is connected to the rear, and the rear wheels (1) are mounted on both left and right sides of this interlocking case (3) through crank-shaped side interlocking cases 0υ, and these are driven by the motor α. Interlocking case (3) is provided so as to be interlocked via a horizontal axis (2) within αυ.

An arm (9) is provided on the upper side of this interlocking case (3), and an arm α0 is provided on the lower side, and the vertical height of these upper and lower arms (9) αO is determined by one side of the four-point link mechanism. The front end of the upper link (5) is pivoted to the upper end of this arm (9) so as to be movable up and down with a support shaft (7).
The front ends of a pair of left and right lower links (6) are pivoted to the lower ends of 10 so as to be movable up and down with a support shaft (8), and a seedling planting device is attached to the rear ends of both upper and lower links (5) (6). The upper and lower parts of the vertical mounting link αη of (4) are connected by a pivot a809, resulting in a four-point link mechanism? Configure and also top links (5)
An integral arm (1) is provided at the front end of the link mechanism, and this link mechanism is configured to be moved up and down by the expansion and contraction of a hydraulic cylinder Qυ between the vehicle body 0]).

The shaft is a power output shaft and is connected to the seedling planting device (4). (F) is the cockpit, and (C) is the steering wheel. The seedling planting device (4) has a float (c) at the bottom, a seedling tank (a) with an inclined surface at the top for feeding the supplied seedlings downward, and a seedling tank (a) for feeding the supplied seedlings. It has a seedling inserting device (a) for separating and planting seedlings, each of which is connected to the power extraction shaft.

During the seedling planting operation, the wheel @ (1) rotates near the soil tiller, and the seedling planting device (4) slides the float (c) on the soil surface, and the seedling tank (I) is moved by the seedling cutting device (5). ) are separated and planted at a certain depth on the soil surface. If the tiller becomes deeper while traveling, the upper link (5) and lower link (6) are rotated upward by the contraction of the hydraulic cylinder (incorporated) to raise the seedling planting device (4) and raise the float (to the bottom). ) to maintain a certain planting depth by the seedling cutting device (5). Conversely, when the tillage becomes shallow, the seedling planting device (4) is lowered by extension of the hydraulic cylinder Cυ. In this way, the links (5) (6) move up and down with the front end of the support shaft (7) (8) e as the center, and the seedling planting device ( 4) Move them up and down in parallel.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, with FIG. 1 being an enlarged perspective view of a portion thereof, and FIG. 2 being a side view. In the figure, (1) is the rear wheel, (2) is the shaft, (3) is the interlocking case, (4) is the seedling planting device, (5) is the upper link, (6)
) is the lower link, (7) and (8) are the support shafts, (9) and αQ
indicates an arm.

Claims (1)

[Claims] A seedling planting device (4) is connected to the upper and lower sides of the rear wheel interlocking case (3), which is equipped with a shaft (2) to drive the rear wheel (1) at both left and right ends. Moving top link (5)
An elevating link device for a seedling transplanter, which has supporting shafts (7), (8), arms (9), and (10) protruding from each other to which a lower link (6) is vertically movably pivoted.