JPS6279701A - 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 relates to a disc-type rotary tiller that performs tilling work by rotationally driving a pair of left and right disc rotors, and more particularly to a disc-type rotary tiller with an improved rotary furrowing mechanism that rotates in the downcut direction. [Conventional technology]

Conventionally, this type of tillage device is a device that is connected to the rear of a tractor via a link mechanism so that it can be raised and lowered, and a transmission that receives power transmission from the PTO shaft of the tractor is provided on the main frame at the center of the device. Disc rotors, which are located on the left and right sides of the main frame and have a plurality of tilling discs fixed to a rotating shaft, are provided with a gearing angle, and these disc rotors are driven from the mission via a power transmission system. , A rotary slotting mechanism is installed in front of the intersection of these disc rotors and rotates a horizontal 1) 1 axis perpendicular to the direction of movement of the aircraft in the down-cut direction, for example, the Jimonsho Go-670038. Disclosed in official gazettes, etc. And in this prior art,
An integral C-shaped cover is provided that surrounds the rear portion of the rotating outer circumference of the tilling claw.

[Problems to be solved by the invention]

However, with the above-mentioned cover, a large force is applied to the cover because the tilled soil is returned to the rear by the tilling claws.
In addition to problems with strength, tillage resistance increases, which affects plowing depth, and the rotation radius of the tiller claws protrudes forward from the Giyoung angle intersection of the disc rotor, increasing the front-to-back length of the machine. be.

[Means to solve the problem]

The present invention has been made to solve the above-mentioned problems, and the rotary groove forming mechanism and mechanism does not require a cover on the outer periphery of rotation of the I11 plowing claw, and the rotation radius of the tilling claw is
It is characterized in that the distance is set to be equal to or greater than the distance from the axis of the tilling shaft to the intersection of the Guyang angles.

[For production]

Since the tilling device of the present invention does not have an integrated cover, M1
The winding resistance is reduced, the machine is lightweight, the front and rear lengths of the machine can be reduced, and it is easy to attach to a tractor, allowing work to be carried out reliably in full bloom.

【Example】

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In the figure, reference numeral 1 denotes a main frame provided at the center of the tilling device, and this main frame 1 is provided with a top mast and a lower link bin, which are not shown but are connected to a three-point link hitch mechanism of the tractor. A transmission section 2 is built into the main frame 1, and an input shaft 3 protruding forward from the transmission section 2 is connected to the tractor's PT. Power is transmitted from the shaft through the drive shaft. Transmission case 4 from the transmission section 2 to the left and right.
4 is bent and extended obliquely backward at a predetermined angle (giang angle), and a chain case 5 is attached to the rear end.
．． The upper end of 5 is attached. A rotating shaft to which a plurality of (two in the drawings) tilling discs 6 are fixed is supported on a support frame (not shown) that protrudes downward from the lower end of the chain case 5 and the main frame 1, and constitutes a disc rotor that drives and rotates. There is. On the other hand, a chain case 7 protrudes downward and diagonally forward from the mission section 2. Power is transmitted to this chain case 7 from the mission section 2, and a chain case 7 is provided at its lower end that is perpendicular to the traveling direction of the aircraft. A tilling shaft 8, which rotates in the down-cut direction, protrudes horizontally, and a plurality of tilling claws 9, 9... are attached to the periphery of the tilling shaft 8, forming a rotary groove cutting mechanism. ing. Cultivating claws 9.9...
・No cover is provided around the outer periphery. In addition, the ridge of the tiller 9 and the one closer to the chain case 7 are the chain case 7.
It is best to install a cultivating soil wind system or a slope wind system that can also be used for cultivation in the lower part. The radius of rotation r of the M1 plowing claw 9 and the distance 1 from the axis of the tilling shaft 8 to the Geyang angle intersection O of the disc rotor are 1
≦ In the disk-type rotary tiller configured in this way, first, the tilling claws 9 rotate in the down-cut direction to till the soil to a predetermined width and depth. A furrow is made while moving the soil backwards, and in this furrow, the soil that has been tilled by the tilling disc 6 is turned over and returned to its original position, and the tilling work is done almost evenly with the width of the disc rotor. At the same time, the rotary furrowing mechanism does not have a cover, so it does not get clogged with soil clods or straw culms, and it is also highly adaptable to changes in plowing depth, reducing overall v1 field resistance.Furthermore, the disc rotor By approaching the groove, the soil clod plowed by the tilling disk 6 is turned over into the groove immediately after being opened by the rotary groove opening mechanism, resulting in good leveling.

【Effect of the invention】

As explained above, according to the disc-type rotary cultivating device of the present invention, the down-cut type rotary groove opening does not require a cover on the mechanism. With the same amount, furrows can be dug smoothly without being clogged by tilled soil or straw culms, and work can be done with low tilling resistance. In addition, since the relationship between M) the rotation radius r of the take-out and the distance from the axis of the tilling shaft to the intersection of the Guyang angle is set to L≦r, a rotary grooving mechanism can be used with a disc rotor. The front and back length of the machine has been shortened, making it easier to mount on the tractor. It can be carried out.

[Brief explanation of drawings]

The drawing is a schematic plan view showing an embodiment of the present invention. 1...Main frame, 2...Mission section, 3...
Input shaft, 4...Transmission case, 5...Zen case,
6... Cultivation disc, 7... Change case, 8...
- Tilling shaft, 9... tilling claw. Patent Applicant Kobashi Kogyo Co., Ltd. Agent Patent Attorney Jundo Nobu Kobashi Patent Attorney Susumu Murai Procedural Amendment (Voluntary) 'December 17, 1985 (Patent Application No. 218396 2 of 1985, Name: Disc-type rotary tiller 3, Relationship with the person making the amendment Patent: 684-4 Nakaawashi, Okayama City, Okayama Prefecture, Agent), Full text of the specification to be amended i, Full text of the specification of the contents of the amendment, attached as an attachment Correct as shown below. (Amendment) Description Natsume 1, Title of the Invention Disc-type rotary tilling device 2, Claims A tilling device that is connected to the rear of a tractor so that it can be raised and lowered via a link mechanism, and which is connected to the main frame in the center of the A transmission is installed that receives power transmission from the tractor's PTO shaft.
A disc rotor, which is located on the left and right sides of the main frame and has a plurality of tilling discs fixed to a rotating shaft, is provided with a gearing angle, and the disc rotor is driven from the mission via a power transmission system. In a disc-type rotary tiller, which is equipped with a rotor groove-drilling mechanism that rotates a horizontal tilling shaft located in front of the intersection of these disc rotors and perpendicular to the direction of movement of the machine in the down-cut direction, the rotor is fully opened by the mechanism. is characterized in that a cover is not provided on the outer circumferential rear part of the tilling claw, and the rotation radius of the tilling claw is set to be equal to or larger than the distance from the axis of the tilling shaft to the intersection of the Giyang angles. A disc-type rotary tiller. 3. Detailed description of the invention

[Industrial application field]

The present invention relates to a disc-type rotary tiller that performs tilling work by rotationally driving a pair of left and right disc rotors, and particularly relates to a disc-type rotary tiller having an improved rotary full-opening mechanism that rotates in a down-cut direction.

[Conventional technology]

Conventionally, this type of tillage device is a device that is connected to the rear of a tractor via a link mechanism so that it can be raised and lowered, and a transmission that receives power transmission from the PTO shaft of the tractor is provided on the main frame at the center of the device. Disc rotors, which are located on the left and right sides of the main frame and have a plurality of tilling discs fixed to a rotating shaft, are provided with a gearing angle, and these disc rotors are driven from the mission via a power transmission system. , there is a rotary full-opening mechanism that rotates a horizontal tilling shaft located in front of the intersection of these disc rotors and perpendicular to the direction of movement of the machine in the down-cut direction, for example, in Japanese Utility Model Application No. 60-67003. has been disclosed. This prior art is provided with an integrated cover that is curved in a C-shape and surrounds the rear portion of the rotating outer periphery of the tilling claw.

[Problem to be Solved by the Invention 1] However, with the above-mentioned integrated cover, a large force is applied to the cover because the tilled soil is returned to the rear by the tilling claws.
In addition to having problems with strength, tilling resistance increases, which affects plowing depth, and the rotation radius of the tilling claws protrudes forward and to the side of the Giyoung angle intersection of the disc rotor, increasing the longitudinal length of the machine. There's a problem. [Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems, and the rotary full opening mechanism does not require a cover at the rear of the outer periphery of the tilling claw, and the rotary full-opening mechanism does not require a cover at the rear of the outer periphery of the tilling claw. The turning radius of the tiller is set to be equal to or larger than the distance from the axis of the tilling shaft to the intersection of the Guyang angles.

[For production]

The tilling device of the present invention has less tilling resistance because the cover is not provided at the rear of the outer periphery of the rotation, and it is lightweight and has a small front-to-back length, making it easy to install on a tractor and making trenching work easier. This will definitely be done.

【Example】

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In the figure, reference numeral 1 denotes a main frame provided at the center of the tilling device, and this main frame 1 is provided with a top mast and a lower link bin, which are not shown but are connected to a three-point link hitch mechanism of the tractor. A transmission section 2 is incorporated into the main frame 1, and power is transmitted from the PTO shaft of the tractor to an input shaft 3 that projects forward from the transmission section 2 via a drive shaft. It is. Transmission cases 4.4 are bent and extended diagonally backward at a predetermined angle (Guyang angle) from the transmission part 2 to the left and right, and the upper ends of chain cases 5, 5 are attached to the rear ends. It is being chain case 5
A rotary shaft to which a plurality of (two in the drawings) tilling discs 6 are fixed is supported on a support frame (not shown) that protrudes downward from the lower end of the main frame 1 and constitutes a disc rotor that is driven and rotated. On the other hand, a chain case 7 protrudes downward and diagonally forward from the mission section 2. Power is transmitted to this chain case 7 from the mission section 2, and a chain case 7 is provided at its lower end that is perpendicular to the traveling direction of the aircraft. A tilling shaft 8, which rotates in the down-cut direction, protrudes horizontally, and a plurality of tilling claws 9, 9, etc. are attached to the periphery of the tilling shaft 8, and a plurality of tilling claws 9, 9, etc. are installed between the rotary grooves.

[This constitutes a pull mechanism. Cultivating claws 9.9...
・No cover is provided around the outer periphery. In addition, among the tilling claws 9, those closer to the chain case 7 are the ones that are closer to the chain case 7.
It is best to install a cultivating soil type or sloped soil that can be tilled at the bottom. The radius of rotation r of the tilling claws 9 and the distance from the axis of the tilling shaft 8 to the Geyang angle intersection O of the disc rotor are! ≦
The relationship is set to be r. In the disc-type rotary tilling device configured in this way, first, the tilling claws 9 rotate in the down-cutting direction to till the soil to a predetermined width and depth, and open a furrow while throwing the tilled soil backward. In this trench opening, the soil that has been plowed by the tilling disc 6 is turned over and thrown away, so that the tilling work is done almost evenly with the width of the disc rotor. At this time, the rotary furrowing mechanism does not have a cover behind the rotating outer periphery, so it does not get clogged with soil clods or straw culms, and it is highly adaptable to changes in tillage depth, reducing overall tilling resistance. . Further, by being close to the disc rotor, the soil clod plowed by the tilling disc 6 is reversed into the groove immediately after being opened by the rotary groove opening mechanism, so that the leveling is improved. [Effects of the Invention] As explained above, according to the disc-type rotary tilling device of the present invention, since no cover is provided at the rear of the rotating outer periphery of the down-cut type rotary furrowing mechanism, it can be constructed lightweight and can be tilled easily. Furrows can be dug smoothly without clogging with soil, straw culms, etc., and work can be done with low tilling resistance. In addition, since the relationship between the rotation radius r of the tilling claw and the distance MJt from the axis of the tilling shaft to the intersection of the Guyang angle is set to L≦r, the rotary groove cutting mechanism can be attached to the disc rotor as much as possible. The front and back length of the machine is shortened, making it easier to attach to a tractor, and the soil that has been tilled by the rotary disc rotor is turned over into the groove immediately after the frontage, allowing plowing work to be done in a nearly leveled state. . 4. Brief description of the drawings The drawings are schematic plan views showing one embodiment of the present invention. 1...Main frame, 2...Mission section, 3...
Input shaft, 4...Transmission case, 5...Chain case,
θ...Plowing disc, 7...Chain case, 8...
- Tilling shaft, 9... tilling claw.

Claims (1)

[Claims] It is a tilling device that is connected to the rear of a tractor so that it can be raised and lowered via a link mechanism, and the main frame at the center of the device is equipped with a transmission that receives power from the PTO shaft of the tractor.
Disc rotors, which are located on the left and right sides of the main frame and have a plurality of tilling discs fixed to a rotating shaft, are provided with a gang angle, and the disc rotors are driven from the mission via a power transmission system. A disc-type rotary tiller is provided with a rotor groove opening mechanism that rotates a horizontal tilling shaft located in front of the intersection of these disc rotors and perpendicular to the direction of movement of the machine in the down-cut direction. is a disc characterized in that a cover is not provided on the outer periphery of rotation of the tilling claw, and the rotation radius of the tilling claw is set to be equal to or larger than the distance from the axis of the tilling shaft to the intersection of the gang angles. Type rotary tillage device.