JPS615704A - Plowing apparatus - 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 Field of Industrial Application The present invention relates to a Jllll tiller 11 which is attached to a tractor body of an agricultural tractor and cultivates soil in a field.

At the rear of the prior art tractor body, a tilling device 16' is mounted on the right side of the Y1 lowering. When turning the headland in the case of reciprocating plowing, the tilling device is raised and the towing body 11f is steered c times (for example, by operating the steering wheel).

By the way, it would be convenient if the plowing equipment could be turned around to continue plowing without raising it, since there would be no need to lower the work equipment row, but in the conventional form, the mounting position relative to the towing vehicle body is...
Even if it is possible to change the direction, the operation must be performed in a special manner (for example, Japanese Patent Application Laid-Open No. 1803-1983).
In the former case, the side part of the frame of the tilling device scrapes the soil to the side, making turning tillage difficult. In the latter case, it is not efficient as it requires a direction change operation that follows the towing vehicle body.

The present invention aims to solve the above-mentioned drawbacks and has taken the following technical measures.

That is, the installed posture of the tilling device (1) with respect to the towing vehicle body (2) is drawn so that the direction can be changed around the vertical axis (a), and the steering of the said direction changing device (3) and the towing body (2) is depicted. A tilling device (4) and a tilling device (1) configured in conjunction with each other to change the direction of the towing device (1) so as to follow the turning direction of the body (2).
Let it be f.

Effects of the Invention Since the present invention has the above-described configuration, when turning on a headland during jilt work, the towing vehicle body (2) can be moved by operating the steering device (4).
For example, when the vehicle changes direction to the right, υI IJ' (in conjunction with 'l (attached to the rear of the towing vehicle body (2)):
The direction changing device (3) of the device (1) operates to turn this tilling device 1.
°'(()) It automatically rotates to the left around the bit axis (A) and changes direction, following the direction of rotation of the towing vehicle body (2). By moving the towed vehicle body forward by 1 inch, l1ll-jz,
1. It can turn to the right. In this way, when turning the headland during plowing work, it is sufficient to only operate in the direction 1.
4". Also, since the tilling device changes direction, the umbrella body can be rotated smoothly without the resistance tp caused by raking the soil.

Example An embodiment of the present invention will be explained based on the drawings.

(1) is a tilling device, and a main power transmission case (6) that supports a human power shaft (5) in a curved protrusion is installed at the upper center. .

Support shafts (6a) (6b) are provided concentrically in the upper and lower parts of the main transmission case (6), and vertical shafts are fitted externally to these support shafts (6a) (6b). A rotatable sub-transmission case (7) is provided for each core (A). Furthermore, (8) is
This is a tilling shaft extending left and right from the bottom of this sub-transmission case (7).

- An intermediate transmission shaft (9) is provided along the vertical axis (a) across the sub-transmission cases (6) and (7), and bevel gears 0001 are provided at the upper and lower portions), The side bevel gear 01 is engaged with the bevel gear θ provided at the base of the F input shaft (5), and the lower bevel gear (1]) is engaged with the bevel gear θ provided at the base of the F input shaft (5).
) is meshed with the upper bevel gear 0■.

jE Transmission case (6) Masts 04) α4) are installed on the left and right sides to form a connection frame for the l/no printer (iF), and a cylindrical body '1t1 is also installed on the left side of the main transmission case (6).
9'lee is provided, and a connecting side plate (18) Qal for lower link 07)0η is provided. In addition, these tonnoplinks (1 turtle, lower link 0η0η each base is the towing vehicle body (2)
The tilling device (1) is connected to the rear part of the tiller by 11 points, and is configured to be able to move up and down as the lift arm (]fJ (Ii) moves down by one.

A support part (E) is provided outward from one base of the connecting side plate Q8) 0, and a bracket 1 is fixed to this support part (E) and the back of the head of the sub-transmission case (7). -@1
A hydraulic cylinder mechanism is installed between one end of the fixed bar (A) that is hung horizontally over the piston (C), and the sub-transmission case (7) is moved to the vertical axis (A) 1 by supplying and discharging oil back and forth to the piston (C). Instead, a turning device (3) is constructed to turn rightward. In addition, a similar support part (A) is provided on the other side of the connecting side plate Ql19QS, and a II link stay (A) is provided between this support part (A) and the other end of the fixed stay (A) so that it can be freely hung and removed. .

(a) is the steering wheel of the towing vehicle body (2);
(C) is a case that includes a power steering mechanism such as a hydraulic pulp, rack, and pinion, and has a traction spindle (1) that controls the left and right front wheels HH of the body (2) in conjunction with the steering. The oscillation of 1M is applied to this case (A) part.
Tie τ Co. No. 1 to the pitman arm 61) installed in the function.
-(2) ζ3, and these steering handlebars, nogworth steering mechanism, front transport bar, etc. constitute a steering system (1't(4)).

A hydraulic cylinder mechanism (to) is provided between the pitman arm 0]) and the towing vehicle body (2) at an appropriate position, and the compartments formed in the front and rear by the piston
) no Hi.

It is connected to the front and rear compartments of the stone (c) through a conduit (to) (7). Bypass passages are provided in these pipes (to) and (to), respectively, and are connected to the oil tank (2) via on-off valves (b).

The shaft is a power take-off shaft, and a hydraulic clutch θG is disposed in the middle. This power output shaft (to) is configured to transmit power to the human power shaft (5) via a universal joint shaft. The solenoid valve θη of the hydraulic clutch θO is turned ON and OFF by switching the changeover switch 04, but in series with the switch (6), the switch of the on-off valve @ (B) or the switch of the lock stay can be connected. The solenoid valve is energized i.
jJ status. ni) ni) is the rear wheel.

The action of the upper side will be explained.

Before starting tillage work, first, install the lock stay (a).
or remove one retainer and remove the main transmission case (6).
is in a state where the direction can be changed from side to side with respect to the sub-transmission case (7). In addition, the on-off valve @ (b) is kept in a closed state.

While descending the tilling device (1), the power take-off shaft is rotated to start tilling work.

When going around the headland, rotate the steering handle (A) in any direction to measure the rotation of the steering wheel (2).
-1) For example, when moving along to the right, the bin 1-man arm C31) swings in the direction of the arrow (b) in FIG.
Change the front wheel (4) to the right direction. At the same time, the left and right pivot parts of the hydraulic cylinder mechanism (to) are expanded, and the back compartment ()\) of the piston ■ is reduced, so oil is passed through the pipe - to the screws of the hydraulic cylinder mechanism e+. 17 υ
It is sent to the dorsal compartment (d).

For this reason, the 1〕1■ rear part of the hydraulic cylinder mechanism (2) approaches, and the auxiliary transmission case (7) is turned in the opposite direction (E) to the vertical axis (A). . In other words, the following 1j11m device in the direction of rotation of the first payload/pull body (2)? t (]) changes direction in the opposite direction, and the connected opposite side follows the same trajectory (the tilling device (1) is turned to the traction vehicle body (2
), the rotary tillage work can be done in January.

In this embodiment, hydraulic cylinder machines fWi (a) and (g)
Since these are connected by a conduit, the deflection angle of the sub-transmission case (7) is determined in proportion to the front wheel steering angle, making it more convenient to use.

In addition, since each part of the opening/closing block f@ζ and lock stay (7) is provided with a switch or θ and υ, the power take-off 1"2
- It is safe because there is less risk of the shaft (g) rotating unexpectedly 17 and causing the auxiliary transmission case (7) to rotate due to the reaction force of the bevel gear meshing part.

In this example, 5. Hydraulic Cylinder Mechanism Co., Ltd. The structure is such that the turning device (3) and the steering device (4) are linked with a trowel, but the steering handle (a) is used for rotation and other means that can transmit the direction to the turning device (3). Means such as electrical connection means may also be used.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a partial plan view, Fig. 3 is a partial side sectional view, and Fig. 4 is a principal part. FIG. 5 shows an electric circuit diagram. In Figure 11, (1) is the tilling device, (2) is the towing vehicle body, (
3) is the steering device, (4) is the steering device, (6) is the main transmission case, (7) is the auxiliary transmission case, and the handle is the hydraulic cylinder mechanism.
0]) is a pitman arm, the trowel is a hydraulic cylinder mechanism, (
To) (7) indicates the conduit.

Claims (1)

[Claims] The tilling device is configured such that the installed attitude of the tilling device relative to the towing vehicle body can be changed around the vertical axis, and the tilling device is configured to be configured such that the direction change device and the steering device of the towing vehicle body follow the turning direction of the towing vehicle body. A tillage device that is configured in conjunction with each other to change direction.