JPS6258904A - Mount apparatus of agricultural working machine - 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 Field of Application 1) The present invention relates to a disc-type rotary V1 rotary device that can be attached to the wheat section of a tractor, and a mounting device that is suitable for agricultural machines with long working parts such as multi-plows. (Prior art 1) Conventionally, the front ends of a pair of left and right mounting arms directly connected to the main body of the work machine are pivotally mounted to the rear of the tractor so as to be movable up and down, and the tractor is mounted on the mounting arms.

[A pair of left and right lower links are connected, and the lower link allows the agricultural machine to be raised and lowered, and the power is transmitted from the tractor's PTo shaft to the input shaft of the a working machine via the universal joint and transmission shaft. It is known what has been done. [Vanishing point to be solved by the invention] In the above-mentioned mounting device, when the agricultural machine is raised and lowered by the lower link, the agricultural machine moves up and down in an arc around the clerical neck at the tip of the mounting arm, so the rotary tillage device There is no problem when the front and back length of the working part is short, as in
For example, in agricultural machines such as disc-type rotary tillers and multi-row plows, which have a long front-to-back working section, when working, the plowing depth at the front of the working section and the width at the rear, i.e., the width. 11 depths in one direction and the other direction are different, and the work
[1] There was a problem that the workability was unfavorable, and the transmission of motion from the tractor to the agricultural machine could not be carried out smoothly. [Means for Solving the Problems] The present invention has been made in order to solve the above-mentioned problems.The present invention has been made in order to solve the above-mentioned problems. The ends of a pair of left and right mounting arms are pivoted so that they can move up and down, and this all? A pair of left and right lift arms provided on the 1-actor are connected to the arm so that it can be raised and lowered, and between the mounting arm and the agricultural machine,
A posture control mechanism is provided to control the #J rear posture of the agricultural machine body, and the universal joint part of the transmission VJ system that transmits power from the tractor to the agricultural machine is shown in the side view at the pivot position between the mounting arm and the agricultural machine body. It is characterized by almost matching.

[For production]

With this configuration, the present invention allows the agricultural machine to be held horizontally at all times, and allows for smooth power transmission.

【Example】

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In the figure, a four-wheeled riding tractor 1 is provided with a work equipment connecting fitting 2 and a pair of left and right lift arms 3 similar to conventionally known lower links. . This work machine 3! ! The agricultural work R4 attached to the fine metal fitting 2 and the lift arm 3 has its rear end pivotally supported on the front part of the agricultural work machine main body 5 via a pin 6, and its tip portion is connected to the work machine connecting metal fitting 2 through the pin 1. At the same time as being pivoted to
It is provided with a pivot pin 8 pivotally attached to the tip of the lift arm 3, and further has a pair of left and right mounting arms 10 with turnbuckle support stays 9 erected thereon. The turnbuckle support stay 9 has a front connecting hole 9a.
and a rear connecting hole 9b are provided so that a turnbuckle can be selected and connected. The agricultural machine main body 5 has the same configuration as a conventionally known disc-type rotary tiller, and has an input shaft 11a protruding from the gear box 11 to the front side, and a PTO4III 11a provided at the rear of the tractor 1 to the input shaft 11a. From the first universal joint 12, transmission l1I113
, receives power via the second universal joint 14. The transmission shaft 13 is attached to a bellow block 16 attached to a support plate 15'' suspended horizontally at the bottom of the mounting arm 1110.
The second universal joint 14 and the first universal joint 12 almost coincide with the bin 6 and the bin 7 in side view, respectively. J
In the machine body 5, a transmission case 11 that also serves as a frame extends obliquely upward from both sides of a gear box 11, and a transmission case 18 is suspended from the side end of the transmission case 11.
A tilling shaft 20 is pivotally supported between its lower end and support frames 19 hanging from both ends of the gear box 11, and a plurality of tilling discs 21 are mounted on this tilling shaft 20 at predetermined intervals (
(in the drawing, two pieces each) are fixed, and the support frame 19
A flange is attached to a shaft that rotates in the opposite direction to the tilling shaft 20 at increased speed by the gear case 22, and a plurality of tilling claws 23 are attached to the outer periphery of this flange, and a central processing section rotates in the up-cut direction. 24. A turnbuckle 26 is mounted between the front connecting hole 9a or the pulling portion connecting hole 9b provided at the upper end of the turnbuckle support stay 9 and a bracket 25 protruding from the gear box 11. By expanding and contracting this turnbuckle 26, the posture of the working machine main body 5 in the front and rear direction is controlled. This is to adjust the machine body 5 so that it is in a horizontal state. It should be noted that the turnbuckle 26 can be extended or contracted like a hydraulic cylinder.
, it is also possible to have a structure. In the farm equipment 41 having such a configuration, the hydraulic cylinder (not shown) of the lift arm 3 is expanded and contracted to rotate the agricultural machine 4 about the bin 7 and move it up and down. Then, when performing tillage work in field 1iIII, the agricultural work l114 is lowered to ground the agricultural work machine main body 5, and the central processing unit 24 and tillage disk 21 perform plowing work II. At this time, agricultural work l114 is
It rotates in an arc around the bottle 7, so for example, make a cavity 9 to make the depth 171 deeper! When the machine body 5 is lowered, the plowing depth on the rear end side, that is, the outer side in the width direction becomes deeper, and the lJ1 depth on the front end side of the central processing section 19 becomes shallower, so this sharpener retracts the turnbuckle 26. By doing so, the working machine main body 5 rotates around the bin 6 and becomes horizontal in the front-rear direction, so that the plowing depth of each part becomes constant. If you want to make the plowing depth shallower, you can adjust it in the opposite way to the above case. The work machine main body 5 is rotated around the bin 7 or the bin 6 by the lc1 lift arm 3 or the turnbuckle 26.
When knotting, the first universal joint 12 or the second universal joint 14 also bends, but since they are bent on the same axis as the bin 6 or 7, they are at equal angles, and power is transmitted at a constant rotation speed. Furthermore, when the turnbuckle 26 is connected to the front connection hole 9a, the agricultural '91 main body 5
It can be lifted up high, making it convenient for transporting or crossing ridges. Effects of the Invention 1 As explained above, according to the agricultural working machine mounting device of the present invention, the agricultural working machine 4 (agricultural working machine body 5) The front and back posture of the
), even if the working part is long in the front and back, the agricultural work machine main body 5 can always be held in a horizontal state and the plowing depth can be kept constant. Further, since the universal joint 12.14 of the transmission system is arranged coaxially with the bin 7.6, it is bent at equal angles and rotates at a constant speed, thereby reliably transmitting power. Furthermore, the structure is simple and can be widely applied to agricultural machines having long working parts in the front and back.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the main parts of a disc-type rotary tiller according to the present invention, FIG. 2 is a plan view of the main parts, and FIG. 3 is a schematic side view of the whole. 1...Tractor, 1a...P T O@, 2...
Working machine connection fitting, 3... Lift arm, 4... Agricultural working machine, 5... Agricultural working machine body, 6, 7... Bin, 8...
...Pivot pin, 9...Turnbuckle support stay, 9
a...Front connection hole, 9b...Rear connection hole, 10...
・Mounting arm, 11... Gear box, 11a...
Input shaft, 12...first universal joint, 1
3... Transmission shaft, 14... Second universal joint, 15... Support plate, 16... Pillow block,
11... Transmission case, 18... Chain case, 19
...Support frame, 20...Plowing shaft, 21...E
+ Plowing disc, 22... Gear case, 23... Plowing claw, 24... Central processing section, 25... Bracket, 2
6...Turnbuckle. Patent Applicant Kobashi Kogyo Co., Ltd. Agent Patent Attorney Nobu Kobashi Ukasa Patent Attorney Susumu Toi Raf? 6ri

Claims (1)

[Claims] At the rear of the tractor, the tips of a pair of left and right mounting arms whose rear ends are pivotally supported to be vertically movable relative to the main body of the agricultural work machine are pivoted so as to be movable vertically. A pair of lift arms are connected so that they can be raised and lowered, and an attitude control mechanism is provided between the mounting arm and the agricultural machine body to control the longitudinal attitude of the agricultural machine body, and power is transmitted from the tractor to the agricultural machine. A mounting device for an agricultural working machine, characterized in that a universal joint portion of a transmission system is substantially aligned with a pivot position between a mounting arm and a main body of the agricultural working machine when viewed from the side.