JP2003250303A - Ground implement and method for operation with ground implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ground implement capable of performing clear ground operation over the full length so as not to cause joints such as a difference in level in the course of a levee, etc. <P>SOLUTION: The ground implement comprises a machine body 3 equipped with mounting parts 30A and 30B for a traveling body 2 and power receiving parts 17A and 17B from the traveling body 2 on both of the front side and the rear side and operating parts 4 and 5 deviated to one of the left and the right sides and arranged when mounting the machine body 3 on the traveling body 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground working machine such as a scoring machine, a scouring machine, and a groove digging machine for forming drainage grooves.

[0002]

2. Description of the Related Art As a ground working machine of this type, there is known a ridge coating machine which is mounted on a rear portion of a tractor through a three-point link and which is provided with a pretreatment section and a ridge section at a position eccentric from a lateral center of the tractor. Has been. In this ridge coater, while driving the tractor along the old ridge (field ridge) in the field, the ridge and its surroundings are ploughed by the plowing claws that make up the pretreatment section.
On the rear side, new ridges are formed by the rotary drum that constitutes the ridge portion.

In the above-mentioned ridge coating work, the tractor cannot advance any further at the end portion of the original ridge (corner of the field, etc.), so that an unformed portion corresponding to the entire length of the tractor is generated, but this unformed portion is manually operated. Therefore, if the ridges are formed, the workers will be forced to do a lot of heavy work. Therefore, how to treat the unmolded portion has been a conventional problem of this seed coater. As a means for solving such a problem, Japanese Patent No. 3205329 and Japanese Patent Publication No. 5-8720
In Japanese Patent Laid-Open No. 1 etc., a pretreatment unit and a trimming unit are provided to be rotatable left and right around a vertical axis so that the posture can be changed between a state in which the tractor is biased to one of the left and right sides and a state in which it is biased to the other left and right sides. A ridge coating machine (ground work machine) has been proposed.

According to this technique, the tractor is advanced while forming the ridges and reaches the corner of the field, and then the postures of the pretreatment section and the ridge sections are changed to the left and right sides, and the tractor is placed behind the unformed section. It was supposed to move to the side, change the direction of the front and back, and continue the tractor as it is while forming the remaining ridges.

[0005]

SUMMARY OF THE INVENTION In the above conventional technique,
It is useful in that it can form ridges in the unformed part of the field corner without manual work, but when switching from the work by forward movement of the tractor to the work by reverse movement, there are 3 points of pretreatment and ridges. It must be lifted via the link and separated from the ground, and after changing the posture to the opposite side, it must be set on the ground again.At this setting, the pretreatment section and the ridges should be accurately positioned at the end point of the ridge already formed. It was difficult to put the parts together. Therefore, a step may be formed between the already formed ridge and the newly formed ridge, or an unformed portion may remain, and the already formed ridge may be destroyed.

That is, the conventional technique has a problem in that the seams of the ridges caused by the switching of the work cannot be processed cleanly, and this part must be finished manually. The present invention aims to solve the above problems.

[0007]

The present invention takes the following technical means in order to achieve the above object. That is, the ground work machine according to the present invention is a machine body provided with a mounting portion for the traveling body and a power receiving portion from the traveling body on both the front side and the rear side, and a left and right body when the vehicle body is mounted on the traveling body. It is characterized in that it is provided with a working portion that is arranged so as to be offset to one side. Further, the ground work method according to the present invention performs ground work in a work unit that is offset to the left or right side by advancing the running body with the front part of the ground working machine attached to the rear part of the running body, Before the end of the work, the ground work implement is removed from the traveling body while the work unit is in the ground posture, the traveling body is moved to the rear side of the ground work implement, and the front-back direction is reversed, and then the rear portion of the traveling body. It is characterized in that the rear part of the ground work machine is attached to the traveling body to perform the remaining ground work while moving backward.

With this structure, a seam such as a step does not occur in the middle of the ridge and the like, and it is possible to perform a clean molding over the entire length, and almost no manual finishing is required. In the above ground working machine, a three-point link device is provided at a rear portion of the traveling body, the three-point link device is provided with a connecting frame having a connecting portion for the mounting portion, and an input shaft forming a power receiving portion is provided. It is preferable that the traveling body is detachably connected to the other end of the interlocking shaft, one end of which is connected to the PTO shaft. As a result, the front and rear mounting portions and the input shafts of the power receiving portion can be mounted on the traveling body easily and quickly.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the ground work machine 1 of the present embodiment is a ridge coater that forms a ridge A in a field, and a machine body 3 that is detachably attached to a rear portion of a traveling body 2 exemplified by a tractor. And the working units 4 and 5 for performing ground work. The working units 4 and 5 are provided with a pretreatment unit 4 for cultivating the original ridge A ′ and a new ridge A behind the pretreatment unit 4. It has a ridge portion 5 to be molded.

A top link 6 is provided at the rear of the tractor 2.
And a left and right lower link 7 are provided, and the three-point link device 8 can be moved up and down by a lift arm 9 that is hydraulically operated. Top link 6
Also, a connecting frame 10 is attached to the rear end of the lower link 7 and is standardized. The connecting frame 10 is formed in a chevron shape or a gate shape in a front view, and has the left and right lower ends and the left and right center upper ends. The automatic hitch type is provided with hook-shaped connecting portions 11A and 11B for connecting the 3 in a substantially automatic and detachable manner.

The body 3 has a gear case 1 in the middle of the left and right.
5 is provided with a frame 16 having a gear case 15
Input shafts 17A and 17B are provided on both the front and the rear so as to project. The tractor 2 is attached to the input shafts 17A and 17B.
The rear end of the interlocking shaft 19 whose front end is connected to the rear PTO shaft 18 is detachably connected, and the rotational power of the PTO shaft 18 can be input into the gear case 15. The interlocking shaft 19
A universal joint is provided in the front and rear portions, and the front and rear portions are configured to be expandable and contractible, and the rear end portion is held by the connecting frame 10.

The input shafts 17A and 17B are the tractor 2
A power receiving portion for receiving the power from is formed. Therefore, the power receiving portions 17A and 17B are provided at two positions in front of and behind the body 3. A transmission case 20 extending to the lower right is connected to the gear case 15, and the power input into the gear case 15 is transmitted to the front side of the gear case 15 via a transmission mechanism such as gear transmission or winding transmission in the transmission case 20. It is transmitted to the pre-processing section 4 and the rear side ridge section 5.

The pretreatment section 4 is a rotary type having a plurality of tilling claws 22 on the outer peripheral portion of the power shaft 21 in the front-rear direction,
The upper side of this rotary portion is covered with a cover 23. The pretreatment unit 4 may be a rotary type that rotates around the power shaft in the left-right direction. The ridge portion 5 is a power shaft 2 in the left-right direction that is projected from the rear portion of the transmission case 20.
5 is provided with a molding drum 26.
Is a cylindrical upper molding portion 26A for molding the upper surface portion of the ridge A.
And an umbrella-shaped lateral molding portion 26B for molding the side surface of the ridge.

However, the ridge portion 5 is not limited to a drum shape, but may be formed by providing a plate-like upper molding portion and a horizontal molding portion in a substantially L-shape, or by molding the ridge upper surface or side surface. It can be configured. On the left side of the frame 16,
A grounding wheel 27 is rotatably supported via an arm so that the height of the grounding wheel 27 can be adjusted. The grounding wheel 27 holds the posture of the ridge coating machine 1 during the work and is grounded by a blade formed on its outer periphery. It is designed to cut and proceed.

A mounting portion 30 for mounting the ridge coating machine 1 to the tractor 2 is provided on both the front side and the rear side of the machine body 3.
A mounting portion 30 is provided with upper connecting portions 31A and 31B projecting upward and rearward from the upper surface of the gear case 15 of the machine body 3, and the gear case 1.
5 has lower coupled parts 32A and 32B projecting forward and rearward from both left and right sides of the frame 16 sandwiching 5, and the upper coupled part 31A and the lower coupled part 32A projecting forward respectively connect the front mounting part 30A. The upper connected portion 3 which is configured and protrudes rearward
1B and the lower coupled portion 32B constitute the rear mounting portion 30B.

In the above structure, the molding operation of the ridge A will be described. As shown in FIG. 2, the front mounting portion 30A of the ridge coating machine 1 is attached to each of the connecting portions 11A and 11B of the connecting frame 10 at the rear portion of the tractor 2. Each connected part 31A, 3 in
The pins of 2A are connected, and the rear end of the interlocking shaft 19 is connected to the front input shaft 17A. Then, while traveling the tractor 2 along the original ridge A ′, the pretreatment unit 4 and the ridge forming unit 5 are operated,
After cultivating the original ridge A ′ and its surroundings by the rotary of the pretreatment section 4, the upper molding section 26A and the lateral molding section 26 of the ridge section 5 are cultivated.
At B, the upper surface and side surface of the ridge A are molded.

When the tractor 2 reaches the field (in front of the work end portion), the pretreatment portion 4 and the ridge portion 5 are kept in the work posture (ground posture) and the front mounting portion 30A from the connecting frame 10.
Remove. At this time, the ridge coater 1 does not separate from the ground and is supported by the pretreatment section 4, the ridge section 5 and the grounding wheel 27 so as to maintain a working posture. As shown in FIG. 3, the tractor 2 from which the ridge coater 1 has been removed is moved to the rear side of the ridge coater 1 and the front-back direction is reversed to connect the rear mounting portion 30B to the connecting frame 10. .

After that, the work is restarted by moving the tractor 2 backward in the direction of the arrow to form the ridge A to the end position. Since the ridge coater 1 does not separate from the ground by changing the direction of the tractor 2 in the front and rear direction and can continue the ridge coat work as it is, it does not generate seams such as steps or unmolded parts and is clean throughout. With this, it is possible to form a uniform ridge A. The present invention is not limited to the above-mentioned embodiment, and can be appropriately modified in design. For example, the ridge coater can be configured such that the pretreatment section and the ridge section can be adjusted in the left-right position, or the posture can be changed backward so as to avoid contact with the surroundings during movement during non-working.

The ridge coater may be directly mounted on the three-point link device without the connecting frame. The power transmission mechanism to the pretreatment device and the trimming portion is not limited to the above, and may be, for example, a structure in which a frame is installed as a transmission case. When the ridge coating machine is removed from the tractor during the ridge molding operation, a foldable or detachable stand may be provided so as to reliably hold the ground posture of the ridge coating machine. Although the ridge coater is exemplified in the above-mentioned embodiment, the present invention can be applied to other ground working machines such as a groove trencher.

[0020]

As described in detail above, according to the present invention,
Continuous clean molding is possible without forming steps or unmolded parts during the molding of ridges, etc., and almost no manual finishing is required.

[Brief description of drawings]

FIG. 1 is a side view of a ground work machine according to an embodiment of the present invention.

FIG. 2 is a plan view of the traveling body during forward movement work.

FIG. 3 is a plan view of the traveling body during a backward movement operation.

[Explanation of symbols]

1 ridge coating machine (ground work machine) 2 tractor (running body) 3 aircraft 4 Pretreatment section 5 ridge part 8 3-point link device 10 connection frame 11A, 11B connection part 17A, 17B input shaft (power receiving part) 19 Interlocking axis 30A front mounting part 30B Rear mounting part

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2B034 AA02 BA01 BA07 BB01 BC06                       BE01 BE02 BE03 DA03                 2B041 AA11 AA15 AB05 AC01 AC20                       CA03 CA16 CC12 CF14 DA04                       EA02 EB02 EB18

Claims (3)

[Claims] 1. A mounting portion (30A, 30A) for a traveling body (2).
30B) and the power receiving part (17A,
17B) and a fuselage provided on both the front side and the rear side (3)
And a working unit (4, 5) which is arranged so as to be offset to one of the left and right sides when the machine body (3) is mounted on the traveling body (2). 2. A three-point link device (8) is provided at a rear portion of the traveling body (2), and the three-point link device (8) has a connecting portion (11A, 11B) to the mounting portion (30A, 30B).
A connecting frame (10) having a power receiving portion (1
7A, 17B) is the input shaft of the traveling body (2).
The ground work machine according to claim 1, wherein the interlocking shaft (19), one end of which is connected to the TO shaft (18), is detachably connected to the other end. 3. A ground working machine (1) is provided at a rear portion of the traveling body (2).
When the traveling body (2) is moved forward with the front part of the vehicle mounted, ground work is performed at the work parts (4, 5) that are offset to the left and right sides, and the work part (4, 4 is located before the work end part. The ground working machine (1) is removed from the traveling body (2) while keeping 5) in the ground posture, the traveling body (2) is moved to the rear side of the ground working machine (1), and the front-back direction is reversed, and thereafter. A work with a ground work machine, characterized in that the rear part of the ground work machine (1) is mounted on the rear part of the travel body (2) so that the remaining ground work is performed while the travel body (2) is moving backward. Method.