JPS6119401A - Disc rotor - 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 mainly attached to an agricultural tractor or the like for traction,
This invention relates to a disc rotor that is driven to plow and turn soil.

[Conventional technology]

Conventionally, this type of disc rotor has a self-rotating disc rotor in which a disc plow for reversing tillage is attached at an inclined angle, but this has the disadvantage of requiring a large tractive force. Further, as a drive type disc rotor, there is a one-way type disc rotor, as shown in FIG. 5, in which a plurality of disc plows are attached to a single rotating drive shaft. In the figure, reference numeral 1 denotes a main frame of a one-way type disc rotor, and this main frame 1 is installed approximately horizontally and diagonally with respect to the traveling direction of the aircraft. Reference numeral 2 denotes a gear box provided in the middle of the main frame 1, and has an input shaft 3 protruding from which power is transmitted from a PTO shaft of an agricultural tractor or the like via a drive shaft. A transmission case 4 is attached to both sides of the main frame 1 together with side frames 5. Reference numeral 6 denotes a rotary drive shaft (tillage shaft), which is rotatably supported between the transmission case 4 and the side frame 5 in parallel to the main frame 1, and transmits the rotary drive force transmitted to the input shaft 3 within the gear box 2. The speed is changed to rotate a rotary shaft housed in the main frame 1 and a sprocket fixed to the shaft, and rotation is driven via a chain housed in the transmission case 4. 7
is a two-disc plow for reversing plowing, and a plurality of plows are fixed to a rotary drive shaft 6 at predetermined intervals with the reversing surface of plowing facing toward the front. A rear wheel 10 is supported by a support frame 8 and a hydraulic cylinder 9, and its cutting angle is adjusted by expansion and contraction of the hydraulic cylinder 9. With the disc rotor configured in this way, the disc plow 7 is given a predetermined gearing angle depending on the slanted angle of the main frame 1, but since it is attached to a single tilling shaft 6, It is not possible to set an angle of inclination to the vertical direction1, and the penetration into the soil is weak.
The reversing force is also insufficient. This biting is better with a disc plow with a small outer diameter than with a disc plow with a large outer diameter, but with a small disc plow, the distance between the tilling shaft 6 and the cutting edge of the disc plow 7 is short, When the soil is dug in about half way, the tilling axis θ comes into contact with the soil surface and further digging is prevented, making it impossible to till a sufficient depth. Furthermore, since the main frame 1 is mounted diagonally to set the gearing angle of the disc plow 7, the left and right balance with respect to the direction of travel is poor, and therefore it is necessary to adjust the tilt angle of the rear wheel 10 with the hydraulic cylinder 9. Become.

[Problems to be Solved by the Invention] As explained above, in the conventional disc rotor, there is a self-rotating disc rotor in which the disc plow has an inclined angle, but the drawback is that the traction horn becomes excessively large. was there. Also,
With a drive-type disc rotor, the disc plow is attached to a single rotating shaft, so the inclination angle cannot be set (pull), and the penetration is insufficient. This had the drawback that the tilling shaft came into contact with the soil surface, making it impossible to till the soil any further, and that the left and right balance in the direction of travel was poor.

[Object of the invention] The present invention has been made to eliminate and overcome the above-mentioned drawbacks, and in order to improve the penetration into the soil, the inclination angle and the gearing angle of the disc plow for reversing tillage are adjusted respectively. By attaching multiple sets of cassette disks, each of which can be driven independently, to the frame, it is possible to achieve deep plowing in a well-balanced manner, and it is also possible to effectively turn over #1 depending on the field. The purpose is to provide disc rotors. [Structure of the Invention] In order to achieve the above object, the present invention has a cassette disc which is capable of changing the inclination angle and gearing angle of a disc plow for reversing tillage, is attached to a frame in a double assembly, and the disc plow is installed internally in the frame. It is characterized by being individually rotationally driven by a drive shaft via a chain and a sprocket.

[*Example]

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 4. In the figure, 12 is a frame of a disc rotor, which is pulled and driven by an agricultural tractor or the like via a lower link bin 11 or the like. 12a is a mounting bracket fixed to the frame 12 at appropriate intervals; 13 is a mounting bracket 12;
ak: *The inclination angle α and the gearing angle β of the disc plow 7 can both be adjusted, and 14 is a transmission support arm for the cassette disc 13, which is rotatably driven individually. A joint portion 14a is formed. Reference numeral 15 denotes a movable support arm, which is fixed to the lower connecting portion 14b of the transmission support arm 14 so as to adjust the tilt angle α and the gearing angle β of the disc plow 1. Reference numeral 16 denotes a sprocket, which is attached to the rotary drive shaft 6, which is rotatably driven by the rotary drive force from the input shaft 3 via the gear box 2, with a key or spline. A sprocket 17 is pivotally supported on the lower part 14b of the transmission support arm 14, and is rotationally driven via a chain 18.
Its rotating shaft is connected to the disc plow 7 via one universal joint. In the disc rotor configured in this way, the disc plow 1 is attached so that the inclination angle α with respect to the vertical direction and the gearing angle β with respect to the traveling direction can be adjusted. Selectively adjust to β. The cassette discs 13 are towed by an agricultural tractor or the like via the lower link bin 11, and rotational driving force is transmitted from the PTO shaft to the input shaft 3 via the drive shaft, and the rotational driving force of each cassette disk 13 is transmitted via the gear box 2 and the rotational drive shaft 6. Rotate the sprocket 16 placed at the top to rotate the chain 18,
A disc plow 1 for reversing tillage is rotationally driven through a lower sprocket 17 and a universal joint 19. At this time, the disc plow 7 is rotated at a high circumferential speed that is approximately 3.5 times or more the circumferential speed of the tractor wheels, thereby efficiently performing plowing and reversal. Further, the disc plow 7 is independently supported perpendicularly to the frame 12 as a cassette disc 13,
Moreover, since the plows are individually rotated by rotary drive shafts 6 provided at a position higher than the ground, a relatively small-diameter disc plow 7 can be used, which improves the cutting ability for soil damage. Furthermore, since the inclination angle α and the gearing angle β of the disc plow 7 can be adjusted for each cassette disc 13, the frame 12 can be disposed perpendicular to the direction of travel as shown in FIG. The left and right balance with respect to the traveling direction of the disc rotor is improved, and the maneuverability of the disc rotor can be easily overcome. [Effects of the Invention 1] As explained above, the disk date and time according to the present invention is
Multiple sets of cassette discs, which allow the inclination angle and gearing angle of the disc plow to be adjusted, are attached to the frame and rotated individually, making it possible to adjust the plowing depth using a relatively small-diameter disc plow. The desired value can be set, the inclination angle and the gearing angle can be optimally selected depending on the field, and the left and right balance is improved, improving the maneuverability of the disc rotor. It will be done.

[Brief explanation of drawings]

FIG. 1 is a plan view of a disc rotor according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a front view of a cassette disk, and FIG. 4 is a frame layout diagram of a disc rotor according to the present invention.
FIG. 5 is a front view of a conventional disc rotor. 1... Main frame, 2... Gear box, 3...
...Input shaft, 4...Transmission case, 5...Side frame, G...Rotation drive shaft (tillage shaft), 7...
Disc plow, 11...Lower link bin, 12...
・Frame, 13...Cassette disc, 14...
Transmission support arm, 15... Movable support arm, 16.1
7... Sprocket, 18... Chain, 19...
universal joint. Figure 1 Figure 2 Figure 4 Figure 3

Claims (1)

[Claims] The inclination angle and gang angle of the disc plow for reversing tillage can be adjusted, and multiple sets of cassette discs are driven individually through chains by sprockets removably fixed to the rotary drive shaft, perpendicular to the frame. A disc rotor characterized by being attached to.