JPH0361401A - Grown-ridge rotary tillage device - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The field of this invention is a rotary tiller connected to a walking-type power agricultural machine or a riding-type power rA machine.

[Prior art]

As shown in Japanese Utility Model Application Publication No. 58-10601, a rotary cultivating device is provided with a suction adjustment mechanism for the ridge-growing machine as well as a vertical adjustment mechanism for the ridge-growing machine.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, when the wheel diameter is changed or the attitude of the vehicle body changes due to the amount of subsidence of the axle due to soil quality,
It is necessary to perform vertical adjustment and suction adjustment of the ridge forming machine.
These two adjustments pose troublesome problems.

[Means to solve the problem]

In order to solve the above problems, the present invention takes the following technical measures. That is, an arc-shaped mounting hit that forms an arc-shaped surface around the tilling axis is provided at the end of the frame of the rotary tilling device that is detachably attached to the vehicle body, and the mounting frame of the ridge-growing machine is attached to this arc-shaped mounting hit so as to be vertically adjustable. Ta.

[Action of the invention]

If you replace the standard wheels with larger-diameter wheels and the car body becomes taller, and you try to obtain the specified plowing depth, the suction of the furrowing machine will become negative, so the mounting frame is designed to give the desired positive suction to the furrowing machine. Move and adjust so that it is located above the arcuate surface. Then, when you change the standard car transporter to a smaller diameter wheel and try to get the specified plowing depth by lowering the car body, the suction of the furrowing machine becomes too positive, so the suction of the furrowing machine becomes too positive. Adjust the mounting frame so that it is positioned below the arcuate surface.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

First, the configuration will be explained. The vehicle body 1 of the management machine has a front frame 4 protruding forward from a transmission case 3 with left and right drive wheels 2 at its lower part, and an output section of a prime mover 6 mounted on the front frame 4 and covered by a bonnet 5. 7 and the input part 8 of the transmission case 3 are interlocked and connected by a primary transmission mechanism 9 equipped with a belt tension clutch, and
A secondary transmission mechanism IO is provided on the TO shaft (not shown) so as to protrude rearward and downward, and a handle 11 is provided at the upper end of the transmission case 3.
is attached so that the handle position can be rotated back and forth around a vertical axis, and a rear hitch 12 is provided on the back of the transmission case 3.

Thereafter, the center drive type rotary tiller 13, which is connected to the hitch 12 and interlocked to the secondary transmission Mtl-0, is fitted with a box-shaped mounting on the front side that fits inside the rear hitch 12 and is connected by a king pin 14. A rotary transmission case 17 is fitted and mounted on the frame 16 provided with the section 15, and the upper input shaft 18 of the rotary transmission case 17 is interlocked and connected to the rear part of the secondary transmission mechanism 10. Outer tillage pipes 22, 22 of outer tillage parts 21, 2, which are provided with tilling claws 20 at the outer ends of the tiller vibrator 9, are fitted onto the tillage shaft (not shown) that protrudes from the left and right at the bottom. Install the tilling claws 20 on the underside of the frame 16...
A tilling cover 23 is provided to cover the upper side of the rotation locus, and an arc-shaped mounting hitch 25 having an arcuate surface 24 around the tilling axis is attached to the P & end of the frame 16 so as to be located on the back side of the rotary transmission case 17. This arc-shaped mounting hitch 25
Four mounting bolts 26 are made to protrude from the upper box-shaped mounting portion 5, and mounting arms 27 are provided to protrude from the left and right outer sides of the upper box-shaped mounting portion 5.

The ridge forming machine 28 attached to the arc-shaped mounting hitch 25 forms an arc-shaped mounting flange 29 that matches the arc-shaped mounting hit 25, and also forms arc-shaped holes 30 that are long in the vertical direction provided in the arc-shaped mounting flange 29. Insert the mounting bolts 26 of the mounting hitch 25 and move the mounting position in the vertical direction fJ
:A U-shaped rear mounting hitch 33 is provided at the rear end of the mounting frame 32, which is tightened with nuts 31 so that the four sections can be tightened, and a tool bar 34 of a hexagonal pipe as long as the tilling pipes 22 in the left and right direction is installed. A central holder 35 and left and right side holders 36, 3G are set up in the center, and a central mounting part 37 of a rectangular pipe suspended horizontally in front of the central holder 35 and side holders 36, 36 is attached to the rear mounting hitch 33. Fit it inside and connect it to the rear mounting hitch 33 with the mounting king pins 38, 38, and connect the center mounting part 37 to the rear mounting hitch 33 using the shoulder push pole l-39 provided on the rear mounting hitch 33 and the rear push bolts 40, 40. The molding portions 4 are fixed to the left and right sides of the tool bar 34 and correspond to the tilling claws 20... 41, 41, and molding portions 4 for suppressing the ridges.
2, 42, gauge wheels 43, 43 and hexagonal mounting pipes 44, 44 provided on the back of the bay part 4, 41, and the molded bodies 45, 45 are fitted around the mounting pipes 44, 44, and locked. The molded bodies 45, 45° are fixed to the tool bar 34 with bolts 46, 46, and the two side arms 47, 47, which are erected on the side holder 36 and the mounting pipes 44, 44, are lengthened with intermediate turnbuckles 48, 48. The tension rods 49 and 49 are pivotally connected to each other and are connected to each other by adjustable tension rods.

Next, the operation of the embodiment will be explained. Drive wheel 2 of vehicle body l.
If the car body 1 becomes higher by replacing the wheel 2 with a larger diameter wheel and trying to obtain the specified plowing depth, the suction of the furrowing machine 28 will become negative. Loosen the nuts 31... and rotate the turnbuckles 48, 48, and the tension rod 49...
By shortening 49, the arc shape ((flange 2
9 slides upward on the arc-shaped mounting hitch 25 between the boxes of the elongated holes 30, 30, and removes the molded bodies 45, 4 from the tilling claws 2o...
5 is in a retracted state, and by tightening and fixing the oaks 1-31, a predetermined positive suction is applied to the formed bodies 45, 45 so as to obtain a predetermined plowing depth.

Conversely, if you change the drive wheels 2.2 from standard wheels to small-diameter wheels to lower the car body l and try to obtain the specified plowing depth, too much positive suction will be applied to the furrowing machine 28. By loosening the nuts 31... so as to give a predetermined positive suction to the ridge forming machine 28, and rotating the turnbuckles 48, 48 in the opposite direction to the above, and extending the tension rods 19, 49, The arc-shaped mounting flange 29 slides downward on the arc-shaped mounting hitch 25 in the range of the elongated hole 30..., and the molded bodies 45, 45 become closer to the plowing claws 20..., and then By tightening and fixing the nuts 31..., a predetermined positive suction is applied to the molded bodies 45 to obtain a predetermined plowing depth.

In addition, the amount of subsidence of the drive wheels 2 with respect to the soil surface differs depending on the hardness of the soil in the field.

Although it is necessary to adjust the suction each time,
2. If the amount of settlement is small compared to the standard amount of settlement, adjust the suction in the same way as if a larger diameter wheel was installed by replacing the standard wheel. If the amount of settlement is large, Suction adjustment is performed using the same concept as when a small diameter wheel is installed by replacing the standard wheel.

〔Effect of the invention〕

In this invention, an arc-shaped mounting hit that forms an arc-shaped surface around the tilling axis is provided at the end of the frame of a rotary tillage device attached to the vehicle body, and the mounting frame of the furrowing machine is attached to this arc-shaped mounting hit so as to be vertically adjustable. Therefore, by simply adjusting the mounting frame by moving it up and down along the arcuate mounting hitch, the suction of the ridge-forming machine can be quickly adjusted according to the size of the wheel in relation to the elevation condition and the amount of subsidence of the wheel to the soil surface. Can be adjusted.

[Brief explanation of drawings]

The drawings show one embodiment of the invention, with FIG. 1 being a plan view of the main parts, and FIG. 2 being an overall side view. Explanation of main symbols 1...Vehicle body 2...Drive wheels 13...
Center drive type rotary, tillage device 16...frame 24...arc-shaped surface 28...furrowing machine 45...molded body 19...till pipe 25...arc-shaped mounting hitch 32...mounting frame

Claims (1)

[Claims] (1) An arc-shaped mounting hitch with an arc-shaped surface around the tilling axis is provided at the end of the frame of the rotary tillage device that is detachably attached to the vehicle body, and the mounting frame of the furrowing machine can be adjusted up and down to this arc-shaped mounting hitch. A rotary tilling device for growing furrows, which is characterized by being installed.