JPS602101A - Disc-shaped rotary cultivator - 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 relates to a disc-type rotary tiller that performs tilling work by driving a rotary shaft with a disc.

Conventionally, this type of disc-type rotary tiller has a center drive type, and because the chain transmission system is placed in the center, one pond remains, so a complicated mechanism is required to dispose of residual tillage. becomes. In addition, when the soil is turned over by driving the left and right rotary shafts with discs, the soil clods are placed on the un-Mired ground portion, resulting in the formation of medium-high ridges.

The present invention has been developed based on the above-mentioned circumstances, and it is an object of the present invention to provide a disc-type rotary tiller that can easily process uncultivated land in the center and form plowed fields evenly. be.

For this purpose, the present invention provides a main frame with a transmission that is connected to the PTO shaft of the tractor and receives power transmission, and is located on the left and right sides of the main frame so that the gearing angle can be adjusted. The rotary shaft with a disc is configured to be driven by the mission via a power transmission system, and a pair of left and right driven or self-rotating centers are provided in front of the inner end of the rotary shaft with a disc. It is characterized by the fact that it is equipped with a disk.

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In the figure, reference numeral 1 indicates the PT installed at the rear of the tractor.
This transmission is equipped with an input shaft 1a connected to the O-axis via a universal joint, etc., and the main frame 2
is mounted in the center of the The mission 1 has output shafts 1b, 1b projecting left and right, to which one end of a universal joint 3 is pivotally attached. The universal joint 3 has a rond part that is expandable and retractable, and the other end of the universal joint 3 is pivotally connected to the input horn shaft 4a of the chain transmission system 4. The chain case 4b of the chain transmission system 4 is fixed to the rear end of the swing frame 5, and the tip of the swing frame 5 is pivoted to the main frame 2 by a pivot shaft 6 in front of the mission 1. supported. The chain case 4b extends downward and is provided with an output shaft 4C of the chain transmission system 4 at its lower part, to which a rotary shaft 8 having disks 7 attached at a predetermined pitch is directly connected. The above-mentioned rotary shaft 8 is connected to the swing frame 5
The inner end thereof is pivotally supported by a support arm 9 extending further downward.

In addition, the rear part of the main frame 2 and the chain transmission case 4b
A hydraulic cylinder 10 is suspended between them, and the space between them can be expanded and contracted. That is, the hydraulic cylinder 10 is connected to a cylinder body 10a whose one end is pivotally connected to a bracket 11 provided on the chain case 4b, and a piston which is slidably inserted into the cylinder body 10a. The piston rod 10b is pivotally connected to the main frame 2.

Further, a pair of left and right disks 12° 12 are provided with their backs facing each other, located below and in front of the mission case 1, and are supported by support shafts 13, 13, and a coulter 14 is also installed behind them. ing.

In such a configuration, power is transferred from the PTO shaft to mission 1.
It is transmitted from below the transmission to the chain transmission system 4 via the universal joint 3, and from the chain transmission system 4 to each rotor shaft B, so that the inner end of each rotor shaft is The uncultivated area in the center becomes smaller because the fields are arranged in close proximity to each other. Moreover, as the aircraft moves, the disk 12 supported by the support shaft 13.13 rolls down, and the disk 12 supported by the support shaft 13.13 rolls.
It rolls and performs a reversing function, and the cork-14 also works, so uncultivated areas are completely treated and no residual tillage is required afterwards. Therefore, it is advantageous compared to the conventional center drive method. Also, depending on the soil type, the hydraulic cylinder 1
By applying oil pressure to 0 and controlling the movement of the piston rod 10b relative to the cylinder body 10, the gearing angle β can be appropriately selected and adjusted. In this case, the transmission angle of the universal joint 3 is the difference between the angle α formed with the output shaft 1b of the mission 1 and the gearing angle β, and the output can be transmitted to the chain transmission system at substantially constant speed.

In the above embodiment, the disks 12 and 12 are explained as being of an autorotating type, but it goes without saying that they may be drive type disks driven by receiving power from the mission 1.

Further, it is preferable that the mutual contact level of the disks 1 can be adjusted, and the angle γ in FIG. 1 and the distance q to the frontmost edge of the disk 7 can be adjusted.

As described in detail above, the present invention transmits power from the transmission to the rotary shaft via the universal joint, and also by disposing a driven or self-rotating disk in the center under the transmission. Uncultivated areas can be processed at the same time as tilling and reversing using discs on the left and right rotary axes, so it does not take much time, has a relatively simple configuration, eliminates uncultivated areas, and leaves only medium and high plowed areas. Excellent tillage work is possible as it can be formed at an even height.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a rear view of the same, and FIG. 3 is a side view of the same. DESCRIPTION OF SYMBOLS 1... Mission, 1a... Input shaft, 2... Main frame, 3... Universal joint, 4... Chain transmission system, 4a... Input shaft, 4b... Chain case, 4C... Output shaft, 5... Swing arm, 6...
Pivot shaft, 7... Disk, 8... Rokuri axis, 9.
...Support arm, 10...Hydraulic cylinder, 10a...
・Cylinder, 10b...Piston rod, 11...
Bracket, 12...Disc, 13...Spindle, 1
4... Cork 39 Procedural amendment (voluntary) 1. Indication of the case 1982 Patent Application No. 110382 2. Name of the invention Disc-type rotary tiller 3. Person making the amendment Relationship to the case Patent application Person: 684-4 Nakamae, Okayama City, Okayama Prefecture, Agent 5, All drawings subject to amendment 6, Contents of amendment The drawing plan will be amended as shown in the attached sheet. Procedural amendment (voluntary) June 21, 1981 1. Indication of the case: 1982 Patent Application No. 110382 2. Title of the invention: Disc-type rotary tiller 3. Person making the amendment: Relationship with the case Patent Applicant: 684-4 Nakanashi, Okayama City, Okayama Prefecture, Agent 5, Subject of amendment (1) Akira@An's scope of claims (2) Ibid., detailed description of the invention (3) Ibid., drawings Brief explanation column 6, contents of amendment (1) Please amend the "Claims" column in light@concave as shown in the attached sheet1゜(2) "Detailed explanation of the invention" in light 1n. ■ in the column
[Drive type or autorotation type] in lines 16-17 of page 2 is ``
First, correct it to "autorotation type". ■ "-Implementation" on the 19th line of the 2nd page is corrected to "Example J." ■ "Mission case 1" on the 9th line of the 4th page is corrected to "Mission case." ■ "Coulter 14" on page 4, line 12 is replaced by "chisel 1".
I will fill in for 4j. ■ Please supplement the description in lines 1 and 2 of page 5 as follows. "The soil in the center above is tilled and turned outward, and the rotary shaft with a disc is rotated to till the soil on the left and right sides and turned inward, so that a clod of soil is deposited from the left and right on top of the uncultivated area in the center. There will be no formation of middle and high ridges due to
Since Katsuzel 14 also works, the uncultivated land in the center" ■ The description in lines 13 to 16 of page 5 has been deleted J-0■
"Disc 1" on page 5, line 17 is replaced with "disc 12".
10 Assigned to J ■ "Angle of J5" on page 5, line 18 is corrected to "angle formed by the outer edge." ■ The statement in lines 1 to 8 of page 6 has been supplemented as follows. [As described in detail above, the present invention is configured such that the rotary shaft with a disk is driven from a mission through a power transmission system, and a rotary shaft is provided in front of the inner end of the rotary shaft. By arranging a pair of left and right center disks, the soil in the lower part of the mission in the center of the machine can be turned over at the same time as the left and right mouth-to-tally shaft disks are turned over. There is no uncultivated land in the composition, and there are no plowed areas.'' (3)
) "Coulter" on page 6, line 20 to page 7, line 1 in the "Brief explanation of drawings" column of Mei III store has been corrected to "chisel" -0 (Attachment) 2. A transmission connected to the P-0 axis of the range tractor and receiving power transmission is provided on the main frame μ, and a disc (=J rotary shaft) is installed on the left and right sides of the main frame to enable gearing angle adjustment. The rotary shaft with a disc is configured to be driven from the mission via a power transmission system, and a pair of left and right rotating rotary shafts are provided in front of the inner end of the rotary shaft with a disc. A disc-type rotary 11 rotary machine characterized by having two rental discs arranged back to back.

Claims (1)

[Claims] A transmission connected to the PTO shaft of the tractor to receive power transmission is provided on the main frame, and discs 40 are located on the left and right sides of the main frame to adjust the gearing angle.
- a rotary shaft is provided, and the rotary shaft with a disc is configured to be driven from the mission via a power transmission system, and on the inner end side of the rotary shaft with a disc,
A disc-type rotary tiller characterized by having a pair of driven or rotating left and right center discs arranged in front of the tiller.