JPS606103A - Tiller expansion device - 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] This invention aims to restore the ventilation and drainage properties of the hardened tillage bed around the roots of crops such as fruit trees by driving an air blower into the hardened tillage bed, and This invention relates to a driving control device in a tiller expansion device that softens the tiller by ejecting pressurized air from the tiller.

The device that the applicant has already proposed supplies pressurized air from a compressor to an air tank via an air tank, drives an air blower into the ground, and blows the pressurized air stored in the air tank. Air is ejected from the body into the ground, but even if pressure air is ejected during one driving process to provide ventilation to the plowing platform at an intermediate depth, the amount of air consumed by the air hammer is Since the pressure is large, the pressure ejected from the air blowing body is low, the swelling and softening effect of the pressure air blowing becomes small, and the interruption time during the driving process to wait for the pressure to recover becomes long, resulting in inefficiency. There is a problem. Therefore, in the present invention, an attempt is made to solve such problems in the conventional apparatus, and the following technical means are provided.

That is, the air blowing body (101) of the air cultivating section (IL), which is vertically movably mounted on the equipment frame (1), is driven nine times into the ground by an air blower, and the air tank (12 In the tiller expansion device configured to blow pressurized air into the ground from this air blowing body (101), a compressor (3
When the air tank (13) reaches a predetermined pressure, A pressure switch is provided to enable the supply of pressurized air to the first layer of the air hammer, and it is configured as a driving control device for a plowing platform expansion device.

The present invention has the following technical effects. Namely, the pressurized air of the compressor (3) is supplied to the air tank (+3) and one layer of the air hammer separately. An air tank (12) with a capacity that can store the amount of ejection for at least one blowout is installed in the air tank (12). is always air tank 1
711c Since pressurized air at a predetermined pressure is stored, it is possible to immediately blow out the pressurized air of this air tank at the end of driving, and there is no waiting time for blowing out, and the blowing operation starts. When the air tank (12) is filled with pressurized air at a predetermined pressure within a short period of time, the driving operation can be started almost immediately, and sufficient pressure is always supplied to the air hammer (25). The driving operation can be performed without any problem.

An embodiment of the present invention will be explained based on the drawings. As shown in Fig. 1 from the left side and Fig. 2 from the rear, there is an air reservoir (2) and a compressor (3) on the equipment frame (1).
is fixedly installed, and the pressurized air is supplied to the air cultivation section +f+, which will be described later, using, for example, a hose. The left and right lower links f are pivotally connected to the rear lower part of the traction machine (4).
5) (At the same time, pivotally attach the front lower part of the equipment frame (1) to the rear of 5j, and attach the rear part of the L-tub link (6) pivotally attached to the upper center of the traction machine (4) to the equipment frame (1). ) are pivoted to the mast (7), and the top links (6) are of equal length to each other.
The left and right lift arms (8) (R) are formed into parallel links with the upper and lower links (5i5), and rotate up and down in accordance with the up and down rotation tfhVc of the lift piston of the traction pA (4). ) via the lower link (Fi) (
5), the device frame (1) always moves up and down in the same posture. Then, install the air blower (IQ) at the bottom (the air tank rt on top of the
3 is attached, and rollers are supported on the left and right sides of the air tank (+2) to form the air u (Il'@ part (i)), and the receiving plate (
U-shaped section erected on 1
(1511c port 5 (13"・t'4FjCshi, vertical rail (19c country) to allow the air "fIF rotation part (I) to move up and down in a straight line. Vertical rail + 151 (15 is equipped with a lifting cylinder ( 1 → is installed, and the air tank (1 →) is mounted on the top of the air tank (1 →), and as the piston moves in and out, the air tilling part (I) is moved to the vertical rail (13-・- 414 so as to move linearly up and down along the horizontal axis 414. Then, a hollow curved horizontal rod 01 is arranged and fixed in the left-right direction on the device frame (1), and inside the horizontal rod Ql. Horizontal frame C7, t that can be moved left and right according to Nozu 1
J VC Front and rear rails with a U-shaped cross section ('1Qilυ are arranged and fixed in the front and rear direction, and the vertical L/-ru (15Q!i!vc
Fixed, mounting plate (t”, H3VC h-ra-c
23Qj9, rJ: (l (1:IJ j
)(24+, not shown), the vertical rail (IQ(13) is locked in a predetermined position by a spring that is engaged with (22) of the front and rear rail 12υQI bet mounting plate.

The driving mechanism σ0 is, as shown in FIG. (3) The pressurized air is transferred to the air reservoir (2) and
The air tank (2) is connected to the hot water through an air supply pipe @ (2n), and the pressurized air in the air reservoir (2) is supplied to the blowing piston ( The pressurized air in the air tank +12 is also supplied to the air blower (It) through the vertical hole (It) through the blowout valve +D).
Furthermore, the pressurized air in the air reservoir (2) is supplied to the lifting cylinder (161) via the lifting valve (eye).
The four pistons are connected to each other so as to be supplied to the bottom surface of the four pistons.

When the pressure in the air tank 02j reaches a predetermined pressure (for example, 10 kg/cd), the supply valve holder is switched by closing its normally open contact (28a) by the actuator (28c) JtC as shown in Fig. 5. The electromagnetic solenoid (al) K of valve 4 is to be energized, and as shown in the same figure, the communication path (a) from the air reservoir (2) to the switching valve (Bl) is opened, and the predetermined pressure is reached. When not in use, the actuator (swivel) is a normally closed contact (
the supply valve (2) by the spring (a3).
The spool of ) is returned to shut off between the air reservoir (2) and the switching valve (BJ.) The switching valve (B) and the lifting valve) are related to the grounding operation of the receiving plate 04). The ground detector Go is fixed to the side rod (9), and the ground detector Go is pivoted to the bracket (lfj).
When the receiving plate (14) is grounded, the grounding detector Gυ is also grounded, and as shown in FIG. Each spool (b+
), (ex), the communication passage (b2) of the switching valve (Kong) communicates the supply valve (5) with the injection valve (Q,
In addition, the lifting valve (odor exhaust path (C2) is connected to the lifting cylinder <l1
The pressurized air in lj will be released to the atmosphere, and when the receiving plate U (a) is suspended above the ground surface (not shown), the spools (b+), (e
x) is pressed l11JI, and the switching valve (B) is turned into the driving valve ((
The pressure air in the air reservoir (2) is supplied to the lifting cylinder f+61 through a lifting valve (the communication passage (ea) K).

The injection valve (C) is connected to the air blower 00 against the receiving plate (14).
Until it reaches a downward movement position of a certain depth, that is, a predetermined driving depth, the switching valve (time) and the striking piston (24) are controlled so as to communicate with each other. Air cultivation section (
For example, the long operating unit of the air tank (I) is attached to the vertical rail 11 via the mounting plate Oa, as shown in Fig. 3, by attaching it vertically movably with bolts GtHC, and attaching it to the air blower αC. As shown in FIG. Valve (q)
The roller comes into contact with the main body part and the spool (C1) is pushed in), so the passage from the switching valve (B) to the striking piston 12 is opened by the driving valve (Q) as shown in Fig. 5. Although not shown in the figure, when the air blower θQ reaches a predetermined driving depth,
The roller falls into the stop part (tuna) at the bottom of the actuating piece, so
The spool (C1) returns to the right side in Figure 5 and switches to the switching valve (B).
The passage from the to the striking piston +24+ is closed, and the driving operation is completed. In the illustrated example, the switching valve (
An interruption valve (Ii') is installed between B) and the injection valve ((1), and the interruption switch 0-1 is always closed, so the interruption valve (Ii') is closed.
The switch valve (Q) is always in communication, but if the interrupt switch q is turned to the OFF position, the driving operation will no longer be possible.

Blow valve (in normal conditions, the air tank fl
'The valve seat (7) that communicates the IJ with the vertical hole (1 (la)) is connected to the valve part (d) which is energized by the spring of the electromagnetic solenoid 07).
However, when the injection switch Ω is turned on, the electromagnetic solenoid Gel is energized and the valve part (d) is closed.
t) is moved downward from the position shown in Fig. 4, and the valve seat is opened, so that the pressurized air in the air tank (1) flows through the vertical hole (
1(b)...
・Fume emitted into the ground.

The inflation and softening work can be carried out by raising the lift arms (8) (8) until the grounding detector 3υ is separated from the spring C3"ll.
The push-off plate l33) is connected to the spool of the lift valve fl'l (
In order to push the air reservoir f21 (2), the pressurized air in the air reservoir f21 (2) is supplied to the lifting cylinder (1) through the lifting valve (E), and its piston αη protrudes to move the air tiller (I). The air blowing body will be lifted up enough to escape from the ground. Also, as the air tiller (I) moves upward, the spool (C1) of the driving valve (q) will operate. piece (g)
The switching valve (
A passage from the gull to the striking piston Q will be opened, but on the other hand, the spool (bl) of the switching valve (B) is pushed by the actuating plate (to), so the air reservoir (2) (2 ), the flow path to the driving valve (Q) is closed by the switching valve fB), and the driving operation remains stopped.Then, the traction machine (4) is moved. If the air blower OC is positioned above the desired tilling position and the operating lever of the traction machine (4) glue 3 holding mechanism is operated in the downward movement direction, the lift arm (8) f81 is rotated downward. The equipment frame C+) will also move downward, and the grounding detector C311 will first touch the ground, so the lifting valve (and switching valve (B)
) spool (eQ (bl) is released from the pushing force of the pushing plate C33), the lifting cylinder (domestic pressurized air is discharged into the atmosphere from the lifting valve (odor exhaust path (C2)). Since the piston (1η) and the air cultivating part ([) are in a free state, the lower end of the air blowing body (1[) will be in contact with the ground, and the switching valve (B) will open the passage to the blowing valve (0). Therefore, if the pressure air in the air reservoir (2) (2) is at the specified pressure in the air tank (13), the supply valve (5), the switching valve (B), the interruption valve (F)
, the striking piston ff of the driving mechanism (6) via the driving valve (Q)
141, the air blower (1υ) is struck to start the driving process, and the tiller is gradually crushed and expanded (((). When this air blower (10) gradually moves down along the joint rail (151) to the depth of the air,
The driving valve (Q
By switching valve (BL to striking piston RY24) VC
The driving process ends because the incoming pressurized air is closed.

Therefore, if the → military mq J"￥4 operator operates the blowout switch, the valve part (city) will open and the air tank 00)
The pressurized air is blown into the fir hole (Fn
a), the lower part of the eruption, 几(++h)... is violently ejected into the ground, and the crushed plow (1) is infiltrated with air and becomes sufficiently swollen and softened. At this time,
Since the pressure in the air tank (+01) will drop below the predetermined value, the pressure switch (2 (to) will close the supply valve hole, and during this time, pressure air will not be supplied to the switching valve (13). .And, in the middle of the above driving process,
The driving operation will be interrupted by switching the interruption switch to the OFF position, and at this time operate the blowout switch 2 to supply pressurized air to the air blower (It) located at the depth of this interruption position.
It can be ejected underground from ll. When the ejection operation is finished, the air tank (13) is pressurized to a predetermined pressure in a short period of time, even several seconds.

Incidentally, reference numeral 5 is an unload valve.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention. Fig. 1 is an overall side view, Fig. 2 is a rear view of the main part of Fig. 7-81, and Fig. 3 is a rear view of the main part of Fig.
Figure 4 is a partially cutaway IE view of the driving mechanism.
FIG. 5 is a collateral circuit diagram. Explanation of symbols (1)...Equipment frame (3)...Kongunsa (12)...Air tank (10)...
... Air blowing body 128) ... Pressure Suinochi Yama ... Air cultivation department Patent applicant Iseki C1 Machine Co., Ltd.

Claims (1)

[Claims] The air blowing body of the pneumatic cultivation section, which is mounted on the equipment frame so as to be vertically movable, is driven into the ground with an air hammer, and the pressurized air from the air tank is blown out into the ground from this air blowing body. In the tiller expansion and softening device, pressurized air from the compressor is branched and supplied to an air tank and an air hammer, and when the air tank has a capacity that can store at least one blowout amount, the air hammer A driving control device for a tiller expansion device, which is equipped with a pressure switch that enables the supply of pressurized air to the plowing platform.