JPH0661003U - Residual tillage treatment equipment for tilling machines - Google Patents

Abstract

(57) [Summary] [Objective] Improve the residual tillage treatment performance and prevent dashing, and perform safe tilling work with high efficiency. [Structure] In the cultivating work machine 9 in which the tail wheel 14 is provided at the rear of the working machine frame 10, and the plurality of tillers 23 are attached to both sides of the transmitting case 17, the transmitting case 17 is provided. A resistance rod 25 is erected from the working machine frame 10 behind the machine, and the tip of the resistance rod 25 is cultivated by the plowing sword 2 in a side view.
The processing unit 27 is formed so as to be close to the lower portion of the rotation locus A of 3 and extend upward from the tip end so as to be sequentially separated from the rotation locus A.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to residual tillage treatment in a tilling work machine such as a tractor or a tiller.

[0002]

[Prior art]

 Conventionally, a tilling work machine mounted on a tractor or a tiller has a transmission case of a rotary device provided at the center of the work machine, and a tiller shaft with an appropriate number of tillers installed on both sides of the work case to project. Type rotary device. In this center type rotary device, since unplowed residual tillage occurs between the plowing swords directly under the transmission case, the residual tillage treatment sword K shown by the dotted line in Fig. 1 is attached to the lower part of the transmission case to scrape off the residual tillage. Alternatively, as shown by the dotted line in FIG. 3, a V-center type rotary device has been proposed in which the plowing swords on both sides of the transmission case are supported so as to be inclined and rotated with respect to the plowing shaft so as not to cause residual plowing. ing.

[0003]

[Problems to be solved by the device]

 However, in the rotary device having the conventional residual tillage treatment sword K, the clods and straws scraped at the tip of the residual tillage treatment sword K adhere to the residual tillage treatment sword K, the transmission case and the both side tillage swords. There is a drawback in that the rotary device is raised to make the working depth shallow and the subsequent residual tillage treatment performance is deteriorated.

Further, although the latter V-center type rotary device is less likely to cause residual tillage, it requires expensive and special metal to attach the plowing sword, and since it causes dashing as it is, a separate resistance member for preventing dashing is provided. There are structural problems that are expensive and complicated, such as having to be done. Therefore, the purpose of the present invention is to eliminate the above-mentioned conventional problems, improve the performance of residual tillage treatment, accurately prevent dashing, and make safe tillage work highly efficient. It is to provide a residual tillage treatment device for a machine.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the residual tillage treatment device of the present invention has a tail wheel at the rear part of the working machine frame and projecting cultivating shafts on both sides of the transmission case, and a plurality of cultivating swords are attached to this cultivating shaft. In the cultivating work machine, a resistance rod is hung from the work machine frame behind the transmission case, and the tip of this resistance rod approaches the lower part of the rotary locus of the tiller in a side view and the processing section extending above the tip. Are sequentially separated from the rotation locus.

[0006]

[Work]

 In the residual tillage treatment apparatus according to the present invention having the above-described structure, since the tail wheel 14 is slightly raised in the initial stage of tillage, when the rotary device 11 is lowered, first, the leading end resistance portion 28 of the resistance rod 25 bites into the ground. The plowing sword 23 scratches the ground surface.

Therefore, the machine starts to cultivate by the resistance rod 25 in a state where sufficient resistance is applied to the rear of the central portion of the rotary device 11 at the initial stage of culturing, so that the machine does not suddenly start and dashing is prevented. As shown in FIG. 2, the tail wheel 14 contacts the tiller when the tiller position B (ground surface position) is reached as shown in FIG. 2, and the tiller balance of the rotary device 11 keeps the tiller depth constant. Plowing work is performed.

In the above plowing work, an unplowed portion of H width is generated as residual tillage under the transmission case between the plowing swords 23a, 23a. This residual tillage is caused by the resistance rod 25 facing the above H width (FIG. 3). The soil mass that is scooped up and removed by the tip resistance part 28 and scooped up is shredded between the processing part 27 and the plowing knife 23 to become fine soil, and reaches the space part S to be discharged sideways accurately from this part. Be crushed.

[0009]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a walk-type cultivator having a handheld handle 2, and this cultivator 1 is an engine 4 mounted on a machine base 3 and a transmission case 6 equipped with a speed change lever 5, and an axle. 7 and wheels 8 are rotated to drive the cultivator 1 body, and the cultivator implement 9 provided at the rear of the machine base 3 is driven for cultivating work.

As shown in FIGS. 2 and 3, the cultivator working machine 9 is detachably attached to the rear part of the machine base 3 or is integrally attached to a rotary device 11 below the working machine frame 10 and the rotary device 11. A rotary cover 12 covering the upper part is provided, and a mounting pipe 13 is provided at the rear part thereof, and a supporting rod 15 of a tail wheel 14 is mounted by a screw 16 so as to be vertically adjustable. Further, in the rotary device 11, the chain 20 installed inside the transmission case 17 and the cultivating shaft 22 which is rotated by the sprocket 21 are supported on the transmission case 17 by bearings 18 and 18 and protrude from both sides. At the same time, a rotary pipe provided with a suitable number of plowing swords 23 at predetermined intervals in the axial direction and the circumferential direction is inserted and bolted. Reference numeral 24 denotes a cover provided on the rear portion of the rotary device 11, which covers an upper portion of the tail wheel 14 to prevent scattering of mud on the driver side.

In the embodiment, the transmission case 17 is composed of a case that is integrated with the mission case 6. However, the case is integrated with the working machine frame 10 so that it can be attached to and detached from the machine base 3. You may. Reference numeral 25 shown in FIGS. 1 and 2 is a resistance rod of the first embodiment of the present invention. The resistance rod 25 has a straight mounting portion 26, a processing portion 27 having a rake angle, and a sharp tip. The resistor portion 28 is formed.

Reference numeral 29 is a triangular edge piece provided at the tip of the resistance portion 28, and a blade surface 27a is formed on the front surface of the processing portion 27 to provide a fine soil effect. When the mounting portion 26 is inserted into the mounting rod 30 provided on the working machine frame 10 in front of the mounting pipe 13 and fixed by the mounting screw 31, the resistance rod 28 causes the resistance portion 28 to move from the working machine frame 10 to the transmission case 17. Behind the cultivator, the cultivators 23a, 23a on both sides (FIG. 3) are erected on the uncultivated land H where the uncultivated land H is still standing, and in a side view, at the lower part of the rotation trajectory A of the cultivator 23. Are in close proximity.

Further, the processing unit 27 extending above the tip of the resistance unit 28 is arranged so as to be sequentially separated from the rotation locus A, and a space S for removing soil is formed. Next, the operation and use mode of the embodiment configured as described above will be described. When the engine 1 is started and the speed change lever 5 is operated to move the vehicle forward, the tiller shaft 22 is rotated through the chain 20 and the sprocket 21, and the tiller 23 attached thereto rotates in the arrow direction. Move into the ground and cultivate the ground to a specified depth and move forward.

On the other hand, at the initial stage of tilling, the tail wheel 14 is slightly raised, so when the rotary device 11 is lowered, first, the tip resistance portion 28 of the resistance rod 25 bites into the ground surface as indicated by a line U in FIG. Then, the plowing sword 23 descends from the line M and scratches the ground surface, and reaches the depth position B (ground surface position) during the work. Therefore, since the aircraft starts to cultivate with sufficient resistance at the initial stage of culturing by the resistance rod 25 while the rear part of the central portion of the rotary device 11 is added, the aircraft does not suddenly start and dashing is suppressed, and its harmful effect is reduced. It can be avoided in advance and the safe tilling work can be performed smoothly.

As shown in FIG. 2, the tail wheel 14 comes into contact with the tiller at a predetermined tillage depth position B as shown in FIG. 2, and the tiller balance of the rotary device 11 provides a constant tillage depth. Therefore, continuous plowing work will be carried out smoothly. In the above plowing work, an unplunged portion of H width shown in FIG. 3 is generated as residual tillage under the transmission case between the tillers 23a, 23a. This residual tillage is the tip resistance portion of the resistance rod 25 facing the above H width. The soil mass scooped and removed at 28 and scooped up is shredded between the processing section 27 and the plowing sword 23 to form fine soil, which reaches the space S and is appropriately discharged laterally from this portion.

Therefore, without making the rotary device 11 V-centered, the residual tillage can be appropriately treated with a simple configuration, and the tilling work can be performed while the resistance rod 25 has very little soil adhered. The adhered soil on the resistance rod 25 can be easily and safely removed from the wide space S behind the plowing knife 23. Next, a second embodiment of the resistance rod 25 will be described with reference to FIG.

The resistance rod 25 is a rod-shaped member having a round or square cross section, and is gently curved forward as it goes downward from the mounting portion 26, and the tip resistance portion 28 is located at the lower part of the locus 23 of the plowing sword 23. It is in close proximity. According to the above-mentioned structure, the treatment section 27 can be gradually brought closer to the rotation trajectory A, so that the scooped up tillage-treated soil mass can be treated more quickly and the soil adhered to the resistance rod 25 can be treated. There is a feature that it can be manufactured easily and easily.

Since the resistance rod 25 of the second embodiment shown in FIG. 4 is formed by processing one rod-shaped member, it will be compared with that of the first embodiment shown in FIG. It is an advantageous structure that has few failures due to its workability and strength.

[0019]

[Effect of device]

 The residual tillage treatment device for a tillage implement according to the present invention has a tail wheel at the rear of the work implement frame and has a tiller shaft projecting from both sides of a transmission case, and a plurality of tillers are attached to the tiller shaft. In the working machine, a resistance rod is hung from the work machine frame behind the transmission case, and the tip of the resistance rod is located close to the lower part of the rotary locus of the tiller in a side view, and the processing section extending from the tip to the upper part is provided. It is formed so as to be gradually separated from the rotation locus, and the following effects can be achieved.

At the initial stage of tilling, the resistance rod 25 accurately contacts the ground to prevent the dashing of the machine body properly, so that the driving operation is safe and easy to perform. In addition, the uncultivated land under the transmission case 17 between the tillers 23 is scooped up by the tip of the resistance rod 25 to eliminate residual tillage, and the soil mass raised by scooping is finely soiled by the treatment section 27 and the tiller 23 and resisted. Good cultivating work can be continuously and efficiently performed in a state in which no soil is attached to the rod 25.

[Brief description of drawings]

FIG. 1 is a side view of a cultivator having an embodiment of the present invention.

FIG. 2 is a side view of the tiller.

FIG. 3 is a plan sectional view of a rotary device.

FIG. 4 is a side view showing a second embodiment of the tilling implement.

[Explanation of symbols]

1 Cultivator 9 Cultivator Working Machine 10 Working Machine Frame 11 Rotary Device 14 Tail Wheel 17 Transmission Case 22 Cultivating Shaft 23 Cultivator 25 Resistance Rod 27 Processing Section 28 Resistance Section

Claims (1)

[Scope of utility model registration request] 1. A tilling machine having a tail wheel at the rear part of the working machine frame and projecting cultivating shafts on both sides of a transmission case, and a plurality of cultivating swords being attached to the cultivating shaft. A resistance rod is hung vertically behind the transmission case, and the tip of the resistance rod is formed to be close to the lower part of the rotary locus of the plowing sword in a side view, and the processing section extending from the tip to the upper part is sequentially separated from the rotary locus. Residual tillage treatment device for a cultivated tiller.