JPH0563202U - Rear cover of rotary tiller - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a rotary tiller that can be easily switched according to working conditions in a field without attaching and detaching a leveling plate and can perform smooth tilling work. [Structure] A plurality of types of leveling plates 21 and 22 having different shapes are attached to the front end side of the rear cover 13 so as to be freely displaceable, and the leveling plates 21 and 22 are connected via a switching means in accordance with working conditions in a field. Switched to use.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rear cover of a rotary tiller, and in particular, a rotary tiller that can be easily switched according to working conditions in a field without attaching or detaching a leveling plate, and can perform smooth tilling work. It concerns the rear cover of the machine.

[0002]

[Prior Art]

 Conventionally, in rotary tillage machines that are mounted on the rear part of a tractor via a three-point link mechanism so as to be able to move up and down, a rotary cover that covers the rotary tillage part is provided with a rear cover that can rotate up and down. The soil leveling plate provided at the rear end of the rear cover is grounded in the field, and the hydraulic mechanism that raises and lowers the rotary tiller is controlled by the vertical movement of the rear cover to keep the plowing depth constant, while the soil leveling plate is used. It has been proposed that the structure is designed to carry out the leveling of traces.

However, in the above-mentioned ones, when a single rotary tiller is used to cultivate a paddy field and perform various operations such as scraping work or tilling in a field, field conditions and each work content Since it is necessary to level the field scene corresponding to the above, every time the field conditions and the work content change, various ground leveling boards suitable for each work must be replaced one by one, which is a troublesome work. It had a drawback that the field work could not be carried out smoothly.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the above circumstances in order to solve the conventional drawbacks, and the purpose thereof is to replace the leveling plate suitable for the work content in the field with a troublesome replacement. It is an object of the present invention to provide a rear cover of a rotary tiller that can be easily performed without any work, and can perform each tilling work smoothly and efficiently.

[0005]

[Means for Solving the Problems]

 In order to solve the problem, the technical means adopted by the present invention is that a rotary tiller is pivotally provided below a working machine frame, and a rear cover for covering the rotary tiller is vertically rotatable at a rear part of the working machine frame. In the mounted rotary tillage machine, a plurality of types of leveling plates having different shapes are detachably attached to the rotating front end side of the rear cover, and the leveling plates are passed through the switching means according to the working conditions in the field. It is characterized in that it is configured to be used by switching.

[0006]

[Action]

 Therefore, according to the present invention, the leveling plate attached to the front end of the rear cover can be switched by one-touch operation according to the working conditions in the field without the need for replacement work, which is more efficient and suitable for each work. The leveling performance can be easily obtained.

[0007]

【Example】

 The configuration of the present invention will be described in detail with reference to an embodiment shown in the drawings. In FIG. 1, reference numeral 1 denotes a rotary cultivator mounted on the rear part of the body of a tractor 2 via a three-point link mechanism 3 so as to elevate and lower, and the front part of the rotary cultivator 1 has a plurality of rotary cultivators. The rotary tiller 5 provided with the claws 4, 4 ... Is laid along the lower surface of the work machine frame 6 extending in the left and right direction of the machine body, and the support frames 7, 7 made of hollow pipes are arranged at predetermined intervals. In addition, it is pivotally installed at the rear of the working machine frame 6 so as to be vertically rotatable. A chain mechanism (not shown) for rotating and driving the rotary pawls 4, 4 ... The rotary claws 4, 4, ... Are rotationally driven by the driving force transmitted through the rotary claw 10.

Reference numeral 11 denotes a rotary cover that covers the upper surface area of the rotary tillage part 5, and a rear cover 13 is pivotally supported on a rear end edge of the rotary cover 11 via a connecting fitting 12 so as to be vertically rotatable. An adjusting mechanism 14 provided between the upper bracket 13a of the rear cover 13 and the bracket 11a of the rotary cover 11 adjusts the inclination angle of the rear cover 13. Reference numeral 15 is a mudguard plate provided inside the rear cover 13.

As shown in FIGS. 2 and 3, the rear cover 13 is configured by extending an upper cover body 17 in which a reinforcing plate 16 is arranged at a predetermined interval and extending in the machine width direction. Reinforcing brackets 18 and 18 are fixed to both end sides of the upper cover body 17, and rolling brackets 20 and 20 that rotate about pivot pins 19 and 19 as fulcrums are attached to lower ends of the reinforcing brackets 18 and 18, respectively. The ground leveling plate 21 for scraping and the leveling plate 22 for rough plowing are attached to both ends of the grounding plate 21 with the back surfaces of the grounding plates 21 and 22 facing each other.

On the ground contact surface 21a forming the ground leveling plate 21 for scraping, there are provided U-shaped bar-springing bar springs 23, 23 ... With a predetermined spacing in the machine width direction. It is fixed intermittently by the rate 24 and the same as above. A corrugated ground leveling portion 21b is formed at the tip edge of the grounding surface 21a, and the grounding surface 22a of the rough plowing grounding plate 22 is a tear drop type float. The fixed brackets 25a and 25b are fixed to the back surfaces of the grounding surfaces 21a and 22a, respectively. On the other hand, the reinforcing plate 16 is provided with a connecting rod 27 having one end pivotally supported by a connecting bracket 26, and the other end of the connecting rod 27 is provided with the fixing brackets 25a, 25b of the grounding plates 21, 22. The ground leveling plates 21 and 22 are fixed by switching.

Since the present invention is configured as described above, when performing plowing tillage, first, the adjusting mechanism 14 is operated to move the rear cover 13 up and down to make plowing tillage suitable for tillage tillage. Fix the rear cover 13 deeply. Next, as shown in FIG. 2, the rolling brackets 20 and 20 are rotated around the pivot pins 19 and 19 as fulcrums, and the inner side surface 17a of the upper cover body 17 and the ground contact surface 22a of the rough tilling leveling plate 22 are made to coincide with each other. After that, the fixing bracket 25a of the ground leveling plate 21 for scraping may be fixed to the connecting rod 27.

In addition, when shifting from the state of rough tillage tillage to sub-scraping (shallow tillage), the adjusting mechanism 14 is operated again to move the rear cover 13 downward from the current setting state, which is suitable for shallow tillage. The rear cover 13 is fixed to the working depth. Next, the fixed bracket 25a of the ground scraping plate 21 for scraping is removed from the connecting rod 27, and the rolling brackets 20 and 20 are rotated in the direction of arrow A with the fastening and pivoting support pins 19 and 19 as fulcrums. As shown in FIG. 4, after the inner surface 17a of the upper cover body 17 and the ground contact surface 21a of the ground scraping ground plate 21 are made to coincide with each other, the fixing bracket 25b of the ground tillage plate 22 for rough plowing is simply attached to the connecting rod 27. It is possible to easily switch the leveling boards according to the field conditions and the work contents, and it is possible to perform plowing work smoothly and efficiently in the field.

[0013]

[Effect of the device]

 In short, the present invention is directed to a rotary tilling work in which a rotary tiller is pivotally provided below a work machine frame, and a rear cover for covering the rotary tiller is attached to a rear portion of the work machine frame so as to be vertically rotated automatically. In the machine, a plurality of types of leveling plates having different shapes are detachably attached to the rotating front end side of the rear cover, and the leveling plates are configured to be switched and used via the switching means according to the working conditions in the field. Therefore, it is possible to eliminate the troublesome work of exchanging various types of leveling boards suitable for each work each time the field conditions and work contents change, and it is not necessary to attach or detach the leveling boards and is suitable for the work content. Further, the ground leveling plate can be easily switched, and the cultivating work in the field can be smoothly and efficiently performed, which is a very useful and practical effect.

[0014]

[Brief description of drawings]

FIG. 1 is an overall side view of a rotary tiller.

FIG. 2 is a plan view of a partially omitted main part during rough tillage work.

FIG. 3 is a side view of the same.

FIG. 4 is a plan view of a partially omitted main part at the time of scraping work.

FIG. 5 is a side view of the same.

[0015]

[Explanation of symbols]

 1 Rotary Tillage Work Machine 5 Rotary Tillage Section 6 Work Machine Frame 13 Rear Cover 21 Ground Scraping Plate 22 Soil Roughing Ground Plate

Claims (1)

[Scope of utility model registration request] 1. A rotary tiller according to claim 1, wherein a rotary tiller is pivotally provided below the work implement frame, and a rear cover for covering the rotary tiller is attached to a rear portion of the work implement frame so as to be vertically rotatable. A plurality of types of leveling plates having different shapes are attached to the front end side of the rear cover so that they can be moved freely, and the leveling plates are configured to be switched and used through a switching means according to the working conditions in the field. A rear cover for a rotary tiller.