JPS6137004A - Disc type rotary plow 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] [Industrial application field]

The present invention is a main unit connected to the rear of a tractor and located in the center of the machine.
This invention relates to a disc-type rotary tiller in which a pair of left and right disc rotors are pivotally supported on a rotor so that the gearing angle can be adjusted, and are driven by power transmitted from a PTO shaft of a tractor.

[Conventional technology]

Conventionally, this type of disc-type rotary tiller has been disclosed, for example, in British Patent No. 857,923 and Japanese Utility Model Application No. 57-5.
4201 @ As shown in the official bulletin, the disc rotor is of a center drive type, and because the mission is placed in the center, there will be some unexplored land left, so it is necessary to dispose of the remaining tillage after plowing. Therefore, there is a problem that tillage work is inefficient.

[Problems to be solved by the invention]

The present invention has been made based on the above circumstances, and it is possible to reliably treat the unheard area in the central part, and in addition, in fields where a lot of waste straw is scattered, it can be used to improve the burying ability of the waste straw. Disc type rotary I for improved finish
The purpose of this invention is to provide an I/O device.

[Means to solve the problem]

To achieve this objective, the present invention provides
A transmission box that is connected to the shaft and equipped with a transmission that receives power transmission is provided on the main frame, and disc rotors that are located on the left and right sides of the box and whose gearing angle can be adjusted are provided. While facing outward, the left and right support cylinders are each pivoted so that the peripheral edges touch on the front side and form an eight-shape in plan view, and these support cylinders are rotated around the axis of the mounting seat. It is characterized in that the position of the contact point of the disk can be adjusted by moving it in the vertical direction.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes the main frame of the tiller body, and the left and right vertical bars 2 long in the front and back direction at the center of the width of the machine body.
, 2 and horizontal bars 3, 3 are assembled together. A transmission box 4 is installed in the center of the main frame 1.
Inside the box, power is transmitted from the PTO shaft of the tractor via an input shaft 5 and bevel gears 6.7, and a transmission consisting of an output shaft 8 protruding to the left and right sides of the box 4, etc. is stored and supported. The output shaft 8 further includes a universal joint 9. Transmission shaft 1
0. It is connected via a universal joint 9 to an input shaft that protrudes from a chain case 11 that houses a chain transmission system (not shown). Note that the transmission shaft 10 is expandable and retractable. The left and right rotor frames 12 have their inner ends attached to the shafts 13 on the vertical bars 2.
The outer end is fixed to the chain case 11. And the chain case 11 extending downward
The rotor shaft 14 has its outer end connected to an output shaft (not shown) that protrudes from the lower part of the rotor frame 12 , and its inner end is connected to the rotor frame 12 .
The disk 16 is supported by a support base 15 that is suspended from
A plurality of discs 16 are mounted with their curved concave surfaces facing inward, and the discs 16 are installed at a speed of 3.5% of the working speed of the tractor.
It is designed to be driven at more than five times the speed. In order to adjust the gearing angle of the rotor shaft 14, one end 17a of an interlocking rod 17 is pivotally attached to the left and right rotor frames 12, respectively. A slide body 18 that can be supported
is pivotally connected to. The main frame 1 is attached to the sliding body 18.
The base end of a hydraulic cylinder 20 housing a piston rod 19 whose base end is pivotally connected to the horizontal bar 3 is connected between the left and right vertical bars 2, 2, and the hydraulic cylinder 20, which is the drive source of the sliding body 18, expands and contracts. Due to the operation, the sliding body 18 slides back and forth along the vertical crosspiece 2.2 of the main frame 1, and the left and right disc rotors 2
The gearing angle of 1 can be adjusted. In addition, left and right center disks 2 are disposed in front of the inner end of the rotor shaft 14.14 in a figure-eight shape in plan view.
2.22 are pivotally supported by a shaft 23, and their peripheries are located at their center Ot on the front side as shown in FIG.
, 01, so that they touch at a point A1 lower than 01. These disks 22 are rotated by power from the mission in the following manner. That is, as shown in FIG. 1.2, the main frame 1 has an inverted dog-shaped chain case 24 located below the transmission box 4 and extending forward between the inner ends of the rotor shafts 14 and 14. Inside the case, there are a sprocket 25 mounted on the output shaft 8 in the transmission box 4, a sprocket 26 pivotally supported on the front part of the chain case 24, and a chain 2 f which is connected to these sprockets. A chain drive system 32 consisting of a tensioner 29, an idler 30, 31, etc. that is adjusted by a bolt 28 is provided, and left and right center disks 22 are installed on both sides of the front part of the chain case 24, as shown in FIG.
A support tube 33 protruding in an inverted F-shape in plan view for pivotally supporting the shaft 23 is fixed by a bolt 36 inserted through a mounting hole 35 provided in a circular flange 34 at the base.
In addition, the flange 34 is provided with a support tube 33 that is rotated on the same circumference as the mounting hole 35 to adjust its vertical direction so that the position of the contact point A1 of the center disk 22.22 is adjusted in the vertical direction. Mounting holes for changing 351...35n
A plurality of them are provided as shown in FIG. The shaft 37 of the sprocket 26 is located on the centerline of the shaft 37, with both ends meeting the inner end of the shaft 23 that pivotally supports the center disk 22. It is connected to a universal joint 38 at a. A center disk 22 having a boss 39 is fixed to the tip of the shaft 23 by a bolt 41 with a washer 40 interposed therebetween. Note that the chino drive system 32 may be formed without using an idler as shown in FIG. Alternatively, the center disk 22 may be rotated as the tractor advances without being driven by power; in this case, the center disk 22 may protrude forward from the main frame 1. (Furthermore, a chisel 42 may be disposed behind the disc on the chisel case 24 or the support base.) The present invention From what was stated above, when the tractor is moved forward for plowing work, the power from the PTO shaft is transmitted to the input shaft 5, bevel gear 6.7, output shaft 8, universal joint 9, and transmission shaft 10. The power is transmitted to the rotor shaft 14 through the chino transmission system of the chino case 11, rotates the disc 16, plows the cultivated soil, and reverses it inward by its curved concave surface.On the other hand, the power of the output shaft 8 is As shown in Figure 2.4, the chain drive system 32, sprocket 26, etc., including sprockets 25, 26, chain 27, tensioner 29, etc.
axis 37. The transmission is transmitted to the shaft 23 via the universal joint 38, etc., and the center disk 22, which is arranged in a figure eight shape in plan view and whose peripheral edges touch at the contact point A1, rotates, plowing the front part of the main frame 1 and moving the cultivated soil to the outside. Flip towards the direction. Therefore, in the tilling work, the front part of the main frame 1 is turned outward by the center disc 22 to form a split-mouth opening before the left and right disc rotors 21 perform the tilling work. Since the left and right sides of the frame 1 are plowed inward by the disc 16 of the disc rotor 21, the soil is plowed inward to fill the openings.
Plowing is averaged nine times without leaving any uncultivated land in the center of the machine. By the way, the center disks 22, 22 are normally connected to the shaft 35 of the sprocket 2G via a universal joint 38 with the shafts 23 inclined slightly downward as shown in FIG. Their peripheries touch at the lower point A1 of OX and Of. By the way, in the present invention, when plowing a field where straw etc. are scattered on the surface, the left and right center disks 22.
The support cylinder 33 which is supported by the shaft 22 is connected to the bolt 36 shown in FIG.
are removed from the mounting holes 35, rotated clockwise and counterclockwise as appropriate, and further tilted downward, and then the bolts 3G are inserted into appropriate mounting holes 351 and 35n to be fixed to the mounting seat of the Cheno case 24. However, as a result, the center of the center disk 22 becomes lower from 01 to 02, and the contact point A1 on the periphery moves to A1 below it, and as a result, the angle of the periphery on the curved surface side of the concave portion with respect to the field surface becomes smaller. The disc 2 moves downward as it becomes
The plowing depth according to the method 2 is increased, and the reversibility of the soil is improved, and the buryability of the medicine can be improved. Note that the above-mentioned embeddability can naturally be expected even when the center disk 22 is made into an autorotating set. [Effects of the Invention] As explained above, according to the present invention, a pair of left and right center discs are rotated in front of the inner end sides of the left and right disc rotors, with their curved concave surfaces facing outward. The left and right support cylinders are arranged in an 8-shape so that their circumferences are in contact with each other, and each of these support cylinders is rotatably mounted around the axis of the mounting seat. Move up and down! ! ! Since the tiller can be articulated, it is possible to till both the left and right sides of the center of the tiller at the same time.Therefore, there is no residual tillage in the center like in conventional tillers. By adjusting the position of the contact point of the disc further downward, it is possible to improve the embedding of the medicine in the field during tillage, and expect remarkable effects such as improving the finish of the soil surface after tillage. .

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a plan view of the present invention, FIG. 2 is a side view, and FIG. 3 is a partially cutaway plan view, FIGS. 4 and 5. Figures <A) and (B) are explanatory diagrams of the present invention, and FIG. 6 is a diagram showing another embodiment of the power transmission system of the center disk. 1...Main frame, 2...Vertical bar, 3...Horizontal bar, 4
...Transmission box, 5...Input shaft, 6.7...Bevel gear, 8...Output shaft, 9...Universal joint, 10...
Transmission shaft, 11... Cheno case, 12... Rotor frame, 13... Shaft, 14... Rotor shaft, 15...
・Support base, 16...Disc, 17...Interlocking rod, 18
...Sliding body, 19...Piston rod, 20...
Hydraulic cylinder, 21... Disc rotor, 22...
Center disk, 23... Axis, 24... Cheno case, 25.26... Sprocket, 27... Cheno, 28... Bolt, 29... Tensioner, 30, 3
1...Idler, 32...Cheno transmission system, 33...
・Support tube, 34...Circular flange, 35...Mounting hole, 3G...Bolt, 37...Shaft, 38...Universal joint, 39...Boss, 40...Washer, 41 ...
Bolt, 42...Chisel.

Claims (1)

[Claims] A transmission box is provided on the main frame to which a transmission that is connected to the PTO shaft of the tractor and receives power transmission is installed, and disc rotors are provided on the left and right sides of the transmission box to adjust the gearing angle, and the disc rotor is connected to the transmission box as described above. It is configured to be driven from the transmission via a power transmission system, and a pair of left and right center disks are placed in front of the inner end of the disk rotor, with their curved concave surfaces facing outward, and with their peripheral edges facing forward. The left and right support tubes are pivotally supported so that they touch each other and form a figure-eight shape when viewed from above, and these support tubes are mounted rotatably around the axis of the mounting seat so that the contacts of the disk can be moved in the vertical direction. A disc-type rotary tiller characterized by being able to adjust its movement.