JP2004024269A - Levee-plastering machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an improved levee-reshaping body comprising a polyhedral drum rotating to form a levee of the soil piled up by a pretreating body of a levee-plastering machine. <P>SOLUTION: The levee-plastering machine 1 comprises a pretreating body 14 and a levee-reshaping body 16 rotating and shaping the soil piled up by the pretreating body 14, wherein the pretreating body 14 is attached to the rear of a traveling machine body, receives power from the traveling machine body and plows a part of a base levee and the field to form a levee. Each crest part 8 of the polyhedral drum 19 has a sweep back angle to the rotation direction. Each crest part 18 of the polyhedral drum is a straight line having a sweepback angle. Each crest part 18 of the polyhedral drum has the sweepback angle and is curved. The step formed on each crest part 18 of the polyhedral drum has an almost constant height from the center of the rotation to the top end. <P>COPYRIGHT: (C)2004,JPO

Description

(4) The present invention relates to a ridge coating machine in which a ridge ridge composed of a polyhedral drum for forming a ridge while rotating soil raised by a pretreatment body is formed.

Conventionally, a pretreatment body mounted on the rear part of the traveling body, receiving power from the traveling body, cultivating a part of the original ridge and a field and swelling in a ridge shape on the original ridge side, and the swelling by the pretreatment body. 2. Description of the Related Art A ridge coater provided with a ridged body composed of a polyhedral drum for forming a ridge while rotating soil is well known.

As shown in FIG. 6, the ridged polyhedron drum A has an umbrella with a radial center (drum center) attached to an end of a horizontal rotation axis B via an attachment C. It is divided into eight equal parts by a step portion (ridge line) D in the radial direction to form eight ridged surfaces E. Each leveling surface E is inclined so that the front part in the rotation (arrow) direction of the polyhedral drum A is low and the rear part is high, and when the polyhedron drum A rotates, the front half part in the radial direction (dotted line) (Shown) is a non-contact surface with the soil, and the latter half is a contact surface so that the ridges are arranged. The step (ridgeline) D is substantially perpendicular to the rotation axis B.

For this reason, when the polyhedron drum A rotates and performs the ridge work, the contact surface of each ridge surface E becomes discontinuous, comes into contact with the soil at a predetermined interval, and the vibration increases. In addition, there is a problem in that the soil is in contact with the soil at a constant length in the radial direction, and the soil adheres to the non-contact surface and the soil is protruded. In addition, since the step portion (ridge line) D is substantially perpendicular to the rotation axis B, there is a problem that the resistance when the polyhedral drum A rotates and comes into contact with the soil increases.
The present invention has been made to solve such a problem.

In order to achieve the above object, a ridge coating machine of the present invention has the following features.
A. A pretreatment body mounted on the rear part of the traveling body, receiving power from the traveling body, cultivating a part of the former ridge and a field to cultivate the former ridge side in a ridge form, and the soil raised by the pretreatment body. In a ridge coater equipped with a regular ridge composed of polyhedral drums that are formed into ridges while rotating,
Each ridge portion of the polyhedral drum has a receding angle with respect to the rotation direction.

B. Each ridge line portion of the polyhedral drum is a straight line having a receding angle.
C. Each ridge portion of the polyhedral drum is curved with a receding angle.
D. The step formed at each ridge line portion of the polyhedral drum has a receding angle and is substantially the same height from the center of rotation to the tip.

E. FIG. A pretreatment body mounted on the rear part of the traveling body, receiving power from the traveling body, cultivating a part of the former ridge and a field to cultivate the former ridge side in a ridge form, and the soil raised by the pretreatment body. In a ridge coater equipped with a regular ridge composed of polyhedral drums that are formed into ridges while rotating,
The step formed on each ridge line portion of the polyhedral drum has substantially the same height from the center of rotation to the tip.

I. A. When the polyhedral drum rotates and hits the soil raised by the pre-treatment body to form a ridge, the ridges come in contact with the rotating direction at a receding angle, so that the contact resistance to the soil is reduced. Can be. Further, a change in vibration due to rotation of the polyhedral drum can be further reduced.

B. B. According to the configuration, each ridge line portion of the polyhedral drum is a straight line having a receding angle, so that manufacture is relatively easy.
C. C. According to the configuration, since each ridge line portion of the polyhedral drum has a receding angle and is curved, the structure is slightly complicated, but the contact resistance to soil can be further reduced. Further, it is possible to further reduce a change in vibration due to the rotation of the polyhedral drum.
D. D. Because the step of each ridge line portion has a receding angle and is almost the same height from the center of rotation to the tip, the pressure at which the polyhedral drum contacts the soil is from the tip of the polyhedral drum to the center of rotation. It becomes almost uniform, and a uniform ridge can be formed.

E. D. Since the step of each ridge line portion is almost the same height from the rotation center to the tip, the pressure at which the polyhedron drum contacts the soil is almost uniform from the tip of the polyhedron drum to the rotation center, Ridges of almost the same hardness can be formed from the lower end to the upper end of the surface.

Hereinafter, the best mode for carrying out the present invention will be specifically described with reference to the accompanying drawings.

に お い て In FIG. 4, reference numeral 1 denotes a ridge coater that is connected to a three-point link connecting mechanism including a top link and a lower link provided at the rear of a tractor (not shown) to perform a levee work. The ridge coating machine 1 is provided with an input unit 3 having an input shaft (not shown) which projects forward from a front frame 2 and receives power from a PTO shaft of a tractor via a universal joint and a transmission shaft. A top link connecting part 4 protruding upward is provided, and lower link connecting parts 6, 6 are provided on the left and right via support arms 5, 5, so as to be connected to a three-point link connecting mechanism of the tractor.

伝 A transmission frame 9 serving also as a main body frame is pivotally attached to the rear ends of a pair of left and right parallel links 7 and 8 having a front end pivotally attached to the rear portion of the front frame 2 so as to be able to move left and right (offset). Power is transmitted from an output shaft (not shown) projecting rearward from the input unit 3 to a transmission box 11 provided on the front side of the transmission frame 9 via a transmission shaft 10 having universal joints attached to both ends. An offset amount adjusting telescopic device 12 is interposed between the position where the parallel link 7 is pivotally attached to the transmission box 11 and the parallel link 8, and the expansion and contraction causes the transmission frame 9, a pretreatment body 14 described later, and a leveling body. 16 offset amounts can be adjusted.

On one side (the right side in the drawing) of the transmission case 9, a pretreatment body 14 composed of a rotary tilling device for cultivating a part of the original ridge and a field and raising the field into a ridge is supported via a transmission case 13 extending forward. Have been. Although not shown, this pretreatment body 14 has a large number of tilling claws attached to the outer periphery of a tilling shaft (working shaft) extending in the left-right direction. Further, behind the pretreatment body 14, a ridge 16 composed of a polyhedral drum 19 for forming a ridge from the soil cultivated by the pretreatment body 14 and raised in a ridge shape is provided via a transmission case 15. I have. A horizontal tubular body 17 is integrally provided on the outer side of the center of rotation of the ridge 16 and rotates together with the ridge 16 to flatten the top of the ridge formed by the ridge 16. I try to mold.

Here, in the present invention, the ridge 16 composed of the polyhedral drum 19 is constituted by eight ridges (polyhedron drum) divided into eight by ridges 18 as shown in FIGS. I have. Then, the polyhedral drum 19 is mounted by eccentrically mounting the drum center side mounting portion 19a of each ridge surface to the mounting portion 21 provided on the center side of the drum by a predetermined amount α with respect to the drum center axis O. I have. Further, the polyhedral drum 19 is mounted on the rotating shaft 20 with the mounting portion 21 eccentric in the axial direction. In the first embodiment, each ridge line 18 has a straight line having a receding angle with respect to the rotation direction. However, as shown in FIG. The curved ridgeline 18a may be curved. Further, as shown in FIGS. 1, 2, 4 and 5, a step portion is formed at each ridge line 18 at a substantially same height from the center of rotation to the tip with a receding angle.

The second embodiment of the present invention shown in FIG. 5 is different from the first embodiment in that the ridges 18 of the polyhedral drum 19 of the ridge 16 in the first embodiment are straight with a receding angle. In the case of No. 2, an arc-shaped ridge line 18a that curves with a receding angle in the rotation direction is formed. Further, the steps formed on the respective ridge lines 18a of the polyhedral drum 19 have a receding angle and are formed at substantially the same height from the center of rotation to the tip, and other configurations are the same as those of the first embodiment. Is similar to

に お い て In FIG. 4, a triangular disk-shaped gauge wheel 22 is supported on the other side (left side in the drawing) of the transmission case 9 by a vertically adjustable support portion 23 so as to be vertically adjustable. The gauge wheel 22 is formed by vertically adjusting the vertical adjustment support portion 23 to adjust the contact height of the entire ridge coating machine 1 and to adjust the working depth of the treatment body 14 and the ridge 16. The height of the furrow can be changed.

The ridge 16 is slightly eccentric with respect to the rotating shaft 20 in the axial direction, and the amount of eccentricity α (runout width) can be adjusted. Further, the ridge body 16 is eccentrically rotated by the polyhedral drum 19, so that the polygonal ridge lines 18, 18a (step portion) and the ridge surface 19 rotate while being eccentric, and hit the ridge slope uniformly to ridge. Then, a new ridge is completed by forming the top of the ridge into a flat shape using the horizontal tubular body 17.

In the ridger 1 having such a configuration, the tractor is connected to a rear portion of the tractor via a three-point link connecting mechanism, receives power from the tractor to the input section 3 and transmits the power to the transmission box 11 via the transmission shaft 10, The pretreating body 14, the ridge 16 and the horizontal tubular body 17 are driven from the transmission frame 9 through the transmission cases 13 and 15, and the tractor travels and performs the levee work. When the working depth of the pretreatment body 14 and the ridge body 16 is increased (the ridge height is increased), the gauge wheel 22 is lifted upward by the vertical adjustment support portion 23, and the pretreatment body 14 and the ridge body 16 are adjusted. In order to reduce the working depth of (i.e., to lower the height of the ridge), the gauge wheel 22 is lowered by the up-and-down adjusting support portion 23. Further, the operation depth of each of the pretreatment body 14 and the ridge body 16 is adjusted.

When adjusting the offset amount of the pretreatment body 14 and the ridge 16, the parallel links 7, 8 are moved by the expansion and contraction of the offset amount adjusting telescopic device 12, and the transmission frame 9, the pretreatment 14 and the ridge 16 are adjusted. Is offset by a predetermined amount. Then, the working angle of the working axis of the pretreatment body 14 and the ridge body 16 (tiling axis in the pretreatment body) with respect to the machine body traveling direction is changed.

In the pretreatment body 14, a part of the original ridge and the field are plowed and raised in a ridge form with respect to the original ridge side, and the raised soil is ridged to a polygonal ridge line 18 (step) of the polygonal conical drum 19 of the regular ridge body 16. ) And the ridge surface 19 are rotated eccentrically and hit the hill slope to form the desired ridge. In this embodiment, the working angles of the working axes of the pretreatment body 14 and the levee body 16 with respect to the machine body traveling direction are changed at the same time. The working angle of only 20 may be changed.

In the ridge 16, the drum center side mounting portion 19 a of the polyhedral drum 19 is eccentric by α from the center O of the rotating shaft 20, so that the contact surface in the radial direction of the polyhedral drum 19 is almost continuously in contact with the soil. The rotation of the polyhedral drum 19 is reduced due to the rotation of the polyhedron drum 19, thereby reducing the vibration change. Further, the adhesion of soil to the non-contact surface of the polyhedral drum 19 and the protrusion of soil are reduced.

According to the configuration of the present invention, the contact resistance of the polyhedral drum to the soil is reduced. Moreover, the vibration change due to the rotation of the polyhedral drum is reduced, and the production of the polyhedral drum is facilitated, and a ridge coating machine capable of forming a uniform ridge can be provided.

FIG. 1 is a front view of a first embodiment of a ridge composed of a polyhedral drum according to the present invention. It is the same side view. FIG. 1 is an overall plan view of a ridge coater according to the present invention. FIG. 4 is a front view of a second embodiment of a ridge composed of a polyhedral drum according to the present invention. It is a front view of the ridge body consisting of the conventional polyhedral drum.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Row coating machine 2 Front frame 3 Input part 4 Top link connection part 5 Support arm 6 Lower link connection part support frame 7,8 Parallel link 9 Transmission frame 10 Transmission shaft 11 Input part 12 Offset adjustment telescopic device 13,15 Transmission case 14 Pretreatment body 16 Ridge ridge (polyhedral drum)
Reference Signs List 17 Horizontal cylindrical body 18 Straight ridgeline 18a Arc-shaped ridge line 19 Leveling surface (polyhedral drum) 19a Drum center side mounting portion of leveling surface α Eccentricity 20 Rotation axis O Center of rotation shaft 21 Mounting portion 22 Gauge wheel 23 Up and down Adjustment device

Claims (5)

A pretreatment body mounted on the rear part of the traveling body, receiving power from the traveling body, cultivating a part of the former ridge and a field to cultivate the former ridge side in a ridge form, and the soil raised by the pretreatment body. In a ridge coater equipped with a regular ridge composed of polyhedral drums that are formed into ridges while rotating,
A ridge coating machine, wherein each ridge line portion of the polyhedral drum has a receding angle with respect to a rotation direction. The ridge coater according to claim 1, wherein each ridge line portion of the polyhedral drum is a straight line having a receding angle. The ridge coater according to claim 1, wherein each ridge line portion of the polyhedral drum is curved with a receding angle. 4. The ridge coater according to claim 1, wherein the step formed on each ridge portion of the polyhedral drum has a receding angle and is substantially the same height from the center of rotation to the tip. . A pretreatment body mounted on the rear part of the traveling body, receiving power from the traveling body, cultivating a part of the original ridge and a field to cultivate the former ridge side to form a ridge, and the soil raised by the pretreatment body. In a ridge coater equipped with a regular ridge composed of polyhedral drums that are formed into ridges while rotating,
A stepping machine formed at each ridge portion of the polyhedral drum has substantially the same height from the center of rotation to the tip.

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