JPH0436561Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a tillage device that is equipped with both a claw rotor and a disc rotor that are compactly and efficiently arranged.

(b) Prior Art Recently, disc rotor type tillage equipment has been frequently used, partly because of its good soil tillability.

For example, this is shown in Utility Model Application No. 59-187901, etc., where a pair of left and right disk rotors with disks arranged side by side are arranged in a rear-opening eight-shape configuration, and the power source is routed through a complicated drive system. This forces the drive shaft of the lever to rotate.

(c) Problems to be solved by the invention By the way, the problems with this type of tillage device are how to deal with the residual tillage that forms in the center, and the configuration of the drive system.

That is, although it is common to place a fixed residual tillage treatment means such as a blade or a plow in the center, such a means is not sufficiently effective.

It is also possible to install a rotating body or the like that has a large processing effect, but it is impossible to fit it in the center due to space considerations, and the configuration of the drive system is also difficult.

(d) Means for Solving the Problems Therefore, this invention consists of a tilling shaft that is rotatably supported by a tilling transmission case and protrudes from both sides of the tilling shaft, in which tilling claws are attached to form a claw rotor. A disk rotor in which disks are arranged side by side on a drive shaft is connected at both ends of the drive shaft through bending joints in a rear-opening eight-shape configuration, and the outer end of this drive shaft is pivotally supported by a shaft support attached to a rotary cover. This solves the problems mentioned above.

(F) Example Hereinafter, an example in which this invention is applied to a walk-behind tiller will be explained with reference to the drawings. Fig. 1 is a side view of the tiller according to this invention;
FIG. 2 is also a sectional plan view.

The tilling device (tiller) is constructed by installing a tilling transmission case (mission case) 2 at the center of the rear of the vehicle body 1, extending a rear frame 3 to the rear, and attaching a rotary cover 4 to the lower part of the rear frame 3. is configured in the tilling section 5.

That is, a tilling shaft 6 is made to protrude from the tilling transmission case 2 in the horizontal direction, and tilling claws 7 are attached to the tilling shaft 6 to form a claw rotor 8.

By the way, with this invention, several pieces are fixed in the longitudinal direction to the central shaft (drive shaft) 9 that passes through the center (if a hexagonal cross section is used as the drive shaft 9, it is possible to drive keys etc. (No force transmission means required) Cup-shaped disks 10 are arranged on both sides of the tilling claws 7 in a rear-opening eight-shape to form a disk rotor 11, and the drive shaft 9 and the tilling shaft 6 of the claw rotor 8 described above are bent. They are uniaxially connected via a joint 12.

Note that the outer end of the drive shaft 9 is connected to the rotary cover 4.
It is pivotally supported by a pivot support 14 such as a pillow block housed in a bracket 13 hanging down from the back surface of the machine.

In addition, near the rear end of the rear frame 3, a vertically adjustable tail wheel tube 15 is provided, from which an arm 16 extending an appropriate amount to the left and right (approximately the full plowing width) is suspended. Tail wheel 1
Attach 7. Others, 18 is tail wheel 15
This is a guide bar for up and down, and 19 is a step for riding attached to the upper surface of the arm 16.

Furthermore, a wheel axle 20 protrudes left and right from the center of the vehicle body 1, and a wheel 21 is fitted onto this.

As described above, if the wheels 21 are driven, the vehicle body 1 moves forward, so if the tilling shaft 6 is also driven at this time, this will be transmitted to the outer drive shaft 9 via the bending joint 12, and the pawl rotor 8 and Disc rotor 1
1 are forced to rotate at the same time.

At this time, the mounting position of the bracket 13 can be changed forward or backward, and the rear opening angle of the disk rotor 11 can also be changed as desired.

By the way, in the case of such a walk-behind tiller, etc., the disk rotor 11 is installed and the wheels 2
However, by arranging the pawl rotor 8 in the center as in this invention, a jerking force is generated as it rotates, which is used to propel the vehicle. This increases the power and makes it possible to drive while working.

(g) Effects of the invention Since this invention consists of the above-mentioned structure and works, the following effects can be expected.

First, since the tilling shaft 6 that drives the pawl rotor 8 and the drive shaft 9 that drives the disc rotor 11 are connected in a horizontal uniaxial manner, the distance between the wheel shaft 20 and the tail wheel 17 can be shortened. , the fuselage length does not increase. Not only that, but even if the center-to-center distance between the wheel shaft 20 and the tilling shaft 6 is the same, the disc rotors 11 on both sides are retracted so as to open backwards, so the diameter D1 of the wheel 21 can be changed from the conventional one. It can be made larger than D2, and the propulsive force of the vehicle body 1 can be increased accordingly.

Next, by arranging the claw rotor 8 in the center of the disc rotors 11 on both sides, this becomes an effective residual tillage processing device. In other words, even if only the disc rotors 11 are arranged in an eight-figure shape, due to their structure, there will be a residual plowed area in the middle, so some kind of device is required to deal with this, but the rotating body is installed in this area. This was difficult due to space and mechanical issues. Therefore, the process has been carried out using something like a fixed blade, but as mentioned above, the effect is not sufficient. However, in this invention, the claw rotor 8 could be installed in this part, so this problem was solved.

In this case, the driving force of the disc rotor 11 is transmitted from the central tilling shaft 6 through the bending joint 12, so when the opening angle of the disc rotor 11 is changed depending on soil conditions etc. However, there is no need to adjust or change the drive mechanism.

Furthermore, the central tilling shaft 6 and the two drive shafts 9 located on both sides thereof are connected by a bending joint 12 to form a split type. Therefore, the outer drive shaft 9 is removed and another drive shaft (work body) is installed.
For example, wide claws, narrow clay claws, etc. can be attached.

In addition, by the action of the central claw rotor 8, fertilizer, compost, etc. can be spread and buried in the center of the ridge.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention,
Figure 1 is a side view of the tilling device according to this invention, Figure 2
The figure is also a cross-sectional plan view. Code, 2... Tilling transmission case, 4... Rotary cover, 6... Tilling shaft, 7... Tilling claw, 8... Claw rotor, 9... Drive shaft, 10... Disc, 11
...Disc rotor, 14...Axis branch.

Claims (1)

[Scope of utility model registration request] A tilling claw 7 is attached to a tilling shaft 6 that is supported by the tilling transmission case 2 and protrudes from both sides of the tilling shaft 6, and a claw rotor 8 is installed.
In addition, bending joints 1 are provided at both ends of the tilling shaft 6.
A disk rotor 11 with disks 10 arranged side by side is connected to the drive shaft 9 via the drive shaft 9 in a rear-opening 8-shape, and the outer end of the drive shaft 9 is connected to the rotary cover 4.
A tillage device equipped with a claw rotor and a disc rotor, characterized in that the tiller is pivotally supported by a shaft support 14 attached to the rotor.