JPS5876009A - Elevation control apparatus of planter apparatus of 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] At the end of the process, J or more ground floats are connected in a row on the left and right so that they can be driven up and down, and the above-mentioned planting is carried out in order to control the up and down of the bag. Conventionally, among the grounding floats arranged in the left and right direction and having a value of fcJi or more, the one located in the center was used as the ground pressure detection 70-toe, and the floats placed on both the left and right sides were made into fixed floats. Shitini g! Although it can be supported on the ground, the following drawbacks were encountered in controlling the lifting and lowering of the spinning.

In other words, in this shape, the ground pressure detection float in the center detects the ground contact status of only a part of the center side of the total 70-t ground contact horizontal 1p, so the planting has many irregularities and undulations in the left and right direction. In one case, even though the left and right fixed feet are in proper ground contact, the ground surface of the center ground pressure detection float may be locally depressed or raised. If this is detected and the elevation control is performed, the overall planting will be shallow or deep. It is conceivable to configure all of the grounding floats for grounding pressure detection and to connect these grounding pressure detection floats with a rigid body, but if this is the case, if the grounding pressure is being detected, all 70-tooth grounding sides will be connected. Since the width is the same as the width, it is possible to obtain the average value of the ground pressure of all floats, and while it is possible to suppress variations in depth when planting, on the other hand, when planting, the heavy grave of the device is Since the plant is supported on the ground only by the ground, there is a problem in that planting due to overshoot of the elevation control is likely to cause pitching of the device.

Final IJ1#i, in view of the above-mentioned circumstances, the purpose of planting is to ensure a uniform depth while also being able to perform stable elevation control with little pitching. - In the above-mentioned ground float, the one located on the outer side between the left and right sides is configured as a ground pressure detection 70-t, and the one located in the center is configured as a fixed 70-t, The ground pressure detection floats on both sides are rigidly connected to each other.

In other words, among the ground contact points 70--t, the integrated substantially wide ground pressure detection point 70--t located on the outer side between the left and right sides is used to detect the unevenness of the average ground contact surface over the entire area of the float residual liquid underground. Since fluctuations can be captured, overall deep planting and shallow planting caused by capturing local unevenness fluctuations in the left and right direction can be suppressed as much as possible. Furthermore, since planting on the fixed float located in the center can strongly support the equipment on the ground, planting caused by overshoot of the lifting control as described above can also suppress pitching of the equipment. As a result, stable elevation control with little variation in planting depth was achieved as a whole.

To apply the complete example below and explain the Charmakunt type riding rice transplanter, it consists of one top link (SA) and a pair of left and right lower links (2B) at the rear of the frame (1) of the traveling body. A link mechanism [21k is used to connect the device (5) for planting in rows so that it can be raised and lowered. 3)... are arranged side by side in the left and right direction, and the frame 11) and the link machine 111! Hydraulic shilling t41t- is cast on the threshold of
), the planting device i11@ is constructed so that it can be driven up and down δ.

Among the grounding floats (3)..., the one located on the outer side between the left and right is used as the ground pressure detection float for controlling the elevation of the planting equipment [@], and the one located in the center is used as the planting is largely configured as a fixing float for supporting the device tBlt to the ground, and the ground pressure detection flows on both sides are rigidly connected via a par [6;, and the rigid connection is connected to the support. The control bar (6) and the elevation control valve (6) are linked, and the two liquid ground pressure detection floats (3) 1 (based on the SIO integrated vertical swing) are connected to each other.
These flows) is3 Reference fs+ ground pressure is set @d
The planting device (6) is configured to control the raising and lowering of the planting device (6) in order to maintain the same level.

For planting, the device (6) is attached to the transmission booth (9) via an L-shaped link, and the sensing arm (
8) and the L-shaped link are provided with a sensing load setting spring [11] that biases both of the liquid ground pressure detection floats lit, l$lt'FjFK.

The sensing arm 181 and the lifting 1tlJ1141 pulp +
When configuring the linkage mechanism Q with 61, illll extra-
J Phosphorus Pulp 16+ Booth (5B) Among the K & girder inner and outer double shaft ill e 04, at one end of the double shaft tti,
ii Place the spool (5A) of the pulp (6) in a neutral state,
Fix the arm ＠ that can switch between the ascending state and the J-like position Km mode, and connect the arm 4 and the m period sensing arm (8), which are tightly fixed at the other end of the inner axle load, to the release wire. (
17), and is provided with a spring U# which rotationally biases the inner shaft 0 in the upward operation direction.

In addition, the outer shaft 04vc moves the spool (5A) upward! An arm 4 and an assistance lever 4 that can be switched by pressing are provided only on the i side.

And IQk! , Fixed ground pressure detection float i31 *
The ground pressure of +31 increases and both these floats 131
, +31 is integrally oscillated upward by a certain amount or more,
The lifting control pulp f5+ is abruptly switched to an upward position by the biasing force of the spring US, and the above-mentioned both flows) +31,
The planting device (9) is controlled to raise 11J until the ground pressure of +31 returns to within the set range. In addition, on the contrary, iIJ book 70-) (sl * t
It decreases the ground pressure of both these floats +319 T
e1) When the unit is oscillated downward by a certain amount or more, the elevating and lowering 1tlJ pulp (61 is abruptly switched to yielding against the biasing force of the spring 1, and both flows)
Until the ground pressure of i31s lal returns to within the set range, the F lowering control of the planting device (6) is performed.

The brake operating device m installed on the traveling aircraft is a first brake operating device m.
As shown in the figure and Fig. 5, the transmission case that pivots the right pair of driving rear wheels @gen, and the operation arms (c) of the left and right brakes (not shown) installed inside this ,(2
alt-provided, this operating arm @I@ and 7 frames (1)
The front part of the brake pedal is connected to the brake pedal (to) and (c) via a large rod (b) and (to).

The brake pedal f24i, C2411-1t, the rod (c), the connecting arm (to) for -, the boss (g4A) having a bow, (g4AJ and the foot pedal part (cB),
(cB) and a straight rod connecting these (g+c
), (g4C), and the rod C34C
), C34C) are displaced outward from the center of the O-axis with respect to the bosses (g4A), (g4A) and the foot pedals (g4g), (HaB). o y F (g4c), (g+c) m K foot is inserted to form a machi kahirō skymon.

Fig. 1 is an overall side view of the riding rice transplanter, Fig. 2 is a plan view of the float, Fig. 8 is a diagram of the elevating control system, and Fig. 4 is a flowchart. 1 is a perspective view, and 1 is an enlarged rear view of the brake pedal.

Prisoner......travelling machine, (8)...planting device, (3)...ground float.

Claims (1)

[Claims] For planting in which three or more grounding floats (31...) are arranged side by side in the left and right direction, the device *@ is installed in series so that it can be driven up and down with respect to the traveling body, and the grounding float (3) is Based on the pressure detection, in order to maintain the ground pressure within the set range, among the 1ift ground floats (3)..., those located on both the left and right outer sides are set to 70 for ground pressure detection. t-1i
! i! The ground pressure detection control device on both sides is configured as a constant float respectively.