JPS6075205A - Sensitivity controller of sensor float in rice 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 The present invention provides a method for adjusting the sensitivity of the sensing flow 1- in a single implanter, which allows the angle of attack of the sensing float to always be maintained at an appropriate state even when the sensitivity of the sensing flow 1- is adjusted. It is related to the device.

Embodiments of the invention shown in the drawings will be described below.

First, to explain the configuration of the embodiment, this rice transplanter has a hydraulic cylinder (
2) A flat one-link lifting device that moves up and down (3)
) and (3), and a seedling planting part (4) is attached to the rear end of the bar-lowering device (3) - (3). Seedling 1j+l f;
The first part (4) includes a seedling tank (6) which is supported by the main body (5) in a forward-leaning manner and reciprocates in the left and right direction with a predetermined stroker.
) is provided, and operates in a vertical direction on the main body (5) of the planting part (5) toward the lower end of the seedling tank (6) to move the seedlings stored in the seedling tank (6). A planting body (7) that can be taken out in the form of a single plant and planted on the rice field is provided, and a center flow 1 that also serves as a sensing float is provided on the lower side of the planting body (5).
- Zide floats (9) are provided on both the left and right sides of (8) and the center float (8).

The center float (8) is shown in detail in Figure 2.
Zorakenoto OQ is erected behind it (L7, this Zorakenoto)
At the upper end of aO, 4i on the front side of Button Keno l-(10)
i'i (, 1) A rotatable shaft that is pivotally supported at the bottom of the main body (5) so that it can rotate downward! One end is fixed to the IQII Oυ, and the other end of the arm U-shaped that extends rearward is attached to a pin. The planting device is rotatably supported via α■, and one end is attached to the other end of the arm Q. The other end of the depth adjustment lever 04) extends backward and diagonally upward, and the The part is inserted into a guide plate 00 fixed to the planting part main body (5) so that it can move in the vertical direction and be locked within the range of movement. An arm OQ that intersects with the arm 02 and projects upwardly is fixed to the rotation shaft (1]), and the base of a link arm α8) is pivoted to the upper end of this arm 0e via a pivot 0η. The other end extends forward, and swings in the front-rear direction via a pivot shaft O@ which is pivotally supported by a support (a) extending from the planting part main body (5) at the tip position. It is pivotally attached to the lower end of the arm holder, which is pivotably supported for free movement, via a pivot point (GL).

On the other hand, the front part of the center float (8) has a placket (
C) is erected, and the lower end of a pantograph-shaped vertical movement link is pivotally supported on this bracket (A), and the vertical movement r+
It has become J Noh. A support arm (E) is fixed to the shaft 0 [phase], and the upper end of the vertical movement link (A) is connected to the tip of the support arm (C) via a pivot part (C). A center float (8
) is provided with a sensing valve (c) that is switched by the vertical movement of the cylinder, and this sensing valve (c) is connected to the 5iJtiJ2 hydraulic cylinder (2), and works in conjunction with the center float (8). The hydraulic cylinder (2) is expanded and contracted to raise and lower the seedling planting section (4) via the lifting devices (3).

(5) is a support body that protrudes in the direction of the planting part main body (5) 1iiJ, and the support body (roll) supports the pivot shaft (IO), and the pivot shaft (1 [phase] The upper end of the arm (A) is fixed to one end of the groove, and the support arm (A) is attached to the other end of the support shaft 00 at 41.
c) Glue, fix the (part), and connect the tip of the support arm (iv) to the upper end of the pantograph-shaped vertical movement link (c) described in MiJ via the pivot part (c), and also In the middle part is an L-shaped sensitivity adjustment arm (G).
One end of the sensitivity adjustment arm (C) is pivotally connected to the sensing valve (A) via a pin (C), and the other end of the sensitivity adjustment arm (C) is pivotally supported. Attach one end of the outer wire (7) to the outer wire (7).
The other end of the inner wire <32 is fixed to the fuselage body (c31) near the seat of the passenger vehicle body (4), and the inner wire (32) is inserted into the outer wire (to) so as to be able to be pushed and pulled. A spring) is interposed between the upper end of the support arm (C) and the other end of the sensitivity adjustment arm (C), and the other end of the inner wire is connected to the sensitivity adjustment lever (C). It is connected via a spring ■. @ is a hydraulic lever connected to the spool part (26a) of the sensing valve (26a) via wire 00.

Next, to explain the effect of the embodiment, when performing rice transplanting work, the adjustment lever is used to adjust the planting depth of the seedlings according to the size of the seedlings, the shape of the water [n], and the depth of the seedlings. (!4)
is moved along the guide plate θυ. Then Arno, O
a rotates around the rotation axis (lυ, center flow 1-
(8) and the Zyde float (9) move downwards, and the implant (7) attached to the rice transplanter body (4) (((1)
The spacing is adjusted, and the planting depth of the seedlings planted on the mud surface is changed by the planting body (7).

At the same time as this adjustment, arm OQ rotates, link arm 0
$, the tip of the support arm (C) is adjusted down by 1" via the pivot Qυ, the arm (A), and the pivot shaft o9, and the float (8
) can be adjusted up and down by the amount that the rear part moves up and down.

Therefore, the angle of attack of the float (8) with respect to the mud surface is
=1 As the depth is adjusted, it will be adjusted and held almost constant, and in this state, the floats (8) and (9) will move up and down while leveling the mud surface, and the sensing valve (a) will be activated. switching,
The lifting device (3) is moved up and down by a hydraulic cylinder (2 cylinders), and the seedling planting side part (4) is moved up and down.

Rice planting work is carried out in such conditions, and the Senku Flow 1, which also serves as a sensing float, is used to detect the hardness and softness of the paddy field.
- The case of adjusting the sensitivity in (8) will be explained.

If the paddy field is soft, use the sensitivity adjustment lever (a).
When rotated counterclockwise, the inner wire (3 [
F] moves to the right. However, the depth adjustment lever θ, arm θ, arm θQ, link arm Q8),
Since the arm (A) and the support arm (■) are in a fixed state via the two pivot shafts θ, the connecting part of the outer wire (7) to the sensitivity adjustment arm (2) moves to the left due to the extension of the spring.
Rotate the sensitivity adjustment arm (c) counterclockwise until it touches the pin)
・The sensing valve handle moves downward. Then, the front part of the center float (8) rotates downward about pin a4, the angle of attack becomes smaller, the contact area on the mud surface increases, and the tension of the spring (2) is weakened, causing the center float to rotate downward. 1-
The push-up blade (8) acts like a dog and moves up and down smoothly, and the sensing valve (c) operates sensitively.
4) Elevation control can be performed. In addition, when the field is hard, operating the sensitivity adjustment lever (G) in the forward/backward direction will operate in the opposite manner as described above, increasing the angle of attack and increasing the ground contact area, as well as reducing the tension of the spring (C). The center float (8) moves up and down slowly to control the raising and lowering of the seedling planting section (4) while preventing hunting.

In this invention, the sensing flow 1-(
8) is installed so that it can move up and down, and this sensing flow 1- (8
) is equipped with a sensing valve (c) that senses the vertical movement of the sensing float (8) and moves the seedling planting part (4) up and down. (7) A planting depth adjustment mechanism is provided to adjust the planting depth of seedlings by adjusting the vertical direction of the sensing valve (A) and the planting depth adjustment mechanism. The link mechanism consists of a sensitivity adjustment arm (support) that is supported by the aircraft body, can be rotated by the sensing lever (c), and has one end connected to the sensing valve (c) side. Since this is a sensitivity adjustment device for the sensing float in a rice transplanter, which is characterized by the fact that the rice transplanter has the same feature, even if the planting depth is adjusted, the front and rear parts of the sensing flow 1-(8) will remain the same. movement, sensing float (8
) can be operated while maintaining the angle of attack at a predetermined state, and when the sensitivity of the sensing float (8) is adjusted, the angle of attack of the sensing flow 1-(8) can be adjusted. , raise and lower the seedlings (ζ1 part) according to the hardness and softness of the field,
It is possible to carry out co-planting work.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a side view of essential parts, FIG. 3 is a top view and rear view, and FIG. 4 is a perspective view. It is. Explanation of symbols (1) Passenger vehicle body (3) Lifting device (4) Seedling planting part I = 1 part (5) Planting part body (8) Center float ([Chi float) θno Arm α body Pin 0 funeral planting (= 1 Depth adjustment lever 0O arm 07) Ize branch α8) Link arm (10 Pivot shaft (A)
Arm 0D Pivotal support (To) 2 Lower moving link Support arm (C) Pivotal support (C) Sensing valve @ Sensing adjustment arm (4) Pin
00 Outer wire 6 → Inner wire (To) Sensitivity adjustment lever (B) Spring (7) Spring Go Hydraulic lever Name of patent applicant Name of patent applicant Iseki Agricultural Machinery Co., Ltd. Representative Masataka Iseki

Claims (1)

[Claims] (1) Sensing flow 1- below part (4)
(8) is installed so that it can move up and down, and the sensing float (8)
An I/δ sensing valve (c) is installed on the front part of the sensing float (8) to detect the downward movement of the sensing float (8) and move the seedling planting part (4) downward. The seedlings are planted by adjusting the vertical direction of the planting body (7). are connected via a link mechanism, and the sensitivity adjustment arm (c), which is supported by the aircraft body and can be rotated by the sensing lever) and whose one end is connected to the sensing valve CQ side, is attached to the link mechanism. A sensitivity adjustment device for a sensing float in an IJI fii'j machine, characterized in that it is a set of component parts.