JP2000204584A - Gutter excavation machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit to excavate with a high efficiency and to remove earth to both sides of an excavated gutter by constituting a gutter excavating portion advancing and operating mounted on a tractor with a wheel and right and left gutter excavating blades at the outer periphery of the wheel supported in a rotating state from the bottom to the top relative to the advancing direction and forming a gutter for closed conduit in a direction perpendicular to the advancing direction. SOLUTION: A gutter excavating section 3 mounted on a tractor which advances and operates comprises a wheel 3A supported in a state of rotating from bottom to top relative to the advance direction of a frame 2 at the lower end of a vertical frame 2A2 functioning also as a chain case, and right and left gutter excavating blades 3B, 3C. Right and left gutter excavating blades 3B, 3C are constituted with single bodies of right and left gutter-excavating blades alternately so arranged to project outwardly at predetermined intervals at the outer peripheral section of the wheel 3A, and right and left single bodies of gutter excavating blades are constituted to a warped state outwardly at right and left with the wheel 3A as a center. Cutters are formed at the front edges at the side of rotating direction of the wheel 3A for respective gutter excavating blades 3B, 3C and an almost channel-shaped gutter for closed conduit with an upward cross section is formed in a direction perpendicular to the advance direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trench excavator having a novel construction.

[0002]

2. Description of the Related Art Conventionally, construction of culvert trenches is a method of digging with a culvert bucket installed in a power shovel.

[0003]

The above-mentioned prior art has the following problems. 1. Since the culvert trench is excavated with a culvert bucket, the lateral wall surface of the trench collapses, so it is necessary to construct the trench in a V-shape, and the cross section of the trench is enlarged. That is, since the V-shaped groove is used by a person to perform work, the groove width is 600 mm to 1000 m.
m and a depth of about 900 mm to 1000 mm. 2. Unlike the rotary method, the excavation work is inefficient because of intermittent work. 3. Excavated soil is rough, and it is easy to create space in the soil when buried. 4. Since the soil in the field is compressed by the weight of the excavator, the efficiency of water penetration is reduced. The present invention has been made in view of such problems of the related art, and an object of the present invention is to provide one that can solve the above-described problems.

[0004]

Means for Solving the Problems In order to achieve the above object, the present invention is as follows. That is,
According to the first aspect of the present invention, a grooved portion 3 mounted on a tractor and operated in a traveling manner includes a wheel 3A supported in a state of being rotated from below to above in a traveling direction, and a left and right groove. Composed of digging blades 3B, 3C, left and right digging blades 3B,
3C is composed of left and right digging blades 3B1 and 3B2 alternately arranged on the outer peripheral portion of the foil so as to protrude outward at a predetermined interval, and has a substantially U-shaped cross section facing upward in a direction orthogonal to the traveling direction. A ditcher configured to form a groove.

Further, according to the second aspect of the present invention, a frame 2, a trench 3, a discharging portion 4, a discharging stopper 5, a front left discharging guide 6, and a front right discharging guide 7 are provided. , A rear left discharge guide 8 and a rear right discharge guide 9. A. The frame 2 includes a frame body 2A and a three-point link 2
B and a wheel portion 2C, and the frame body 2A
A vertical frame 2A2 which also serves as a main frame 2A1 formed in a vertically long rectangular shape in the front-rear direction, which is the direction in which the frame body advances and retreats, and a chain case vertically connected to the left side of the main frame. Composed of
The three-point link 2B is erected continuously on the front side of the main frame, and the wheel 2C is supported on the rear side of the main frame by a support frame 2C1 supported in the left-right direction. It is composed of left and right wheels 2C2 mounted in a free state. B. The trench 3 is a vertical frame 2A that also serves as a chain case.
2, a wheel 3A supported in a state of being rotated upward from below with respect to the traveling direction of the frame 2, and left and right digging blades 3B and 3C.
3C is composed of left and right digging blades 3B1 and 3B2 alternately arranged on the outer peripheral portion of the foil so as to protrude outward at a predetermined interval. The right digging blade 3B2 is configured so as to be warped rightward and outward centering on the foil, and a blade is formed on a front edge which is a rotating direction side of the foil, and the earth discharging portion is formed. 4 is an upper surface plate 4A along the upper surface of the grooved portion configured to cover the upper portion of the grooved portion 3 from above, and covers the left and right portions of the upper portion of the grooved portion 3 from outside. And left and right side plates 4B, 4C, and further, a discharge port 4B1,
4C1 is provided. C. The discharging stopper 5 is composed of a stopper plate 5A which is suspended from the rear end of the frame main body 2A in a state perpendicular to the traveling direction of the frame main body.
B is configured to have a size corresponding to the width of the culvert groove 10 formed in the trench 3 and a lower portion 5A of the stopper plate.
1 is configured to be gently curved along the outer periphery of the lower rear portion of the trench 3. D. The front left unloading guide 6 has a guide body 6A having a substantially C-shaped cross section connected to the unloading port 4B1 with the tip 6A1 of the guide body facing the traveling direction of the frame main body. The entire guide body 6A is configured to face diagonally left rear. E. FIG. The front right unloading guide 7 is configured such that a guide body 7A having a substantially C-shaped cross section is directed to the unloading port 4C1 via the unloading duct 4C11 in a state where the tip 7A1 of the guide body is directed in the traveling direction of the frame body. Guide body 7
A: It should be configured so that the whole faces diagonally right rear. F. The rear left unloading guide 8 connects the guide body 8A, which is gently curved in the traveling direction of the frame body, to the upper left side on the back side of the stopper plate 5A of the unloading stopper 5, and the entire guide body 8A is connected. Be configured to face diagonally left rear. G. FIG. The rear right discharging guide 9 connects the guide body 9A, which is gently curved in the traveling direction of the frame body, to the upper right side on the back side of the stopper plate 5A of the discharging stopper 5, and the entire guide body 9A is Be configured to face diagonally right rear.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments with reference to the drawings. Reference numeral 1 denotes a trench excavator of the present invention, which includes a frame 2, a trench 3, a discharging part 4, a discharging stopper 5, a front left discharging guide 6, a front right discharging guide 7, and a rear left. It comprises a discharge guide 8 and a rear right discharge guide 9.

A. The frame 2 includes a frame body 2A,
It is composed of a three-point link 2B and a wheel 2C. a. The frame main body 2A is composed of a main frame 2A1 formed in a vertically long rectangular shape in the front-rear direction, which is the direction in which the frame main body moves, and a chain case vertically connected to the left side of the main frame in a downward state. The vertical frame 2A2 also serves as a vertical frame. b. The three-point link 2B is provided upright on the front side of the main frame. c. The wheel portion 2C includes a support frame 2C1 supported on the rear side of the main frame in the left-right direction, and left and right wheels 2C2 mounted on both ends of the support frame such that the support height is adjustable. d. On the upper surface of the main frame, T. An O-drive speed reducer 2D and the like are provided.

B. The grooved portion 3 is provided at the lower end of the vertical frame 2A2 also serving as a chain case, with a wheel 3A supported in a state of being rotated from below to above (indicated by an arrow A in FIG. 1) with respect to the traveling direction of the frame 2, and left and right. Ditch blade 3B, 3
C. a. The left and right digging blades 3B, 3C are composed of left and right digging blades 3B1, 3B2 alternately arranged on the outer peripheral portion of the foil so as to protrude outward at predetermined intervals.
B1 is configured to warp leftward around the wheel, and the right grooved blade unit 3B2 is configured to warp rightward around the wheel. A blade is formed on a front edge on the rotation direction side. The shape and structure of the left and right trenching blades 3B1 and 3B2 will be described with reference to FIG. FIG.
Referring to FIG. 10, when viewed from the front, the mounting portion 3B11 for the foil is configured to be in a vertical state, and is configured to bend leftward as it goes downward, and the rotation direction of the left grooving blade 3B1. A blade 3B12 is formed on the front edge that is the side. 3B13 is a screw hole for attachment to a foil. b. The discharging section 4 is an upper surface plate 4A along the upper surface of the digging portion configured to cover the upper portion of the digging portion 3 from above.
And left and right side plates 4B and 4C configured to cover the left and right portions of the upper part of the trench 3 from outside. Further, discharging ports 4B1 and 4C1 are provided in front of the left and right side plates 4B and 4C.

C. The discharging stopper 5 is provided on the frame body 2A.
The stopper plate 5A is suspended from the rear end in a state perpendicular to the direction of travel of the frame body, and the width 5B of the stopper plate corresponds to the width of the culvert groove 10 formed in the trench portion 3. The lower portion 5A1 of the stopper plate is gently curved along the outer periphery of the lower rear portion of the trench 3. D. The front left unloading guide 6 has a guide body 6A having a substantially C-shaped cross section connected to the unloading port 4B1 with the tip 6A1 of the guide body facing the traveling direction of the frame main body. The entire guide body 6A is configured to face diagonally left rearward. E. FIG. The front right unloading guide 7 is configured such that a guide body 7A having a substantially C-shaped cross section is directed to the unloading port 4C1 via the unloading duct 4C11 in a state where the tip 7A1 of the guide body is directed in the traveling direction of the frame body. Guide body 7
The whole A is configured to face diagonally right rear. F. The rear left unloading guide 8 connects the guide body 8A, which is gently curved in the traveling direction of the frame body, to the upper left side on the back side of the stopper plate 5A of the unloading stopper 5, and the entire guide body 8A is connected. It is configured to face diagonally left rear. G. FIG. The rear right discharging guide 9 connects the guide body 9A, which is gently curved in the traveling direction of the frame body, to the upper right side on the back side of the stopper plate 5A of the discharging stopper 5, and the entire guide body 9A is It is configured to face diagonally right rear.

[0010]

EXAMPLES Further, as a result of an experiment under the following conditions,
Very good results were obtained. A. Groove width 10A ~ 160mm ~ 180m of culvert groove 10
m. B. Depth of trench 10 for culvert 10B ~ 900mm ~ 1000
mm.

[0011]

Since the present invention is configured as described above, the following effects can be obtained. 1. Unlike the conventional method, tractor work can be performed using the rotary method. 2. Because of the rotary method, the soil is automatically discharged to both sides of the trench by its centrifugal force. 3. The drilling speed is very fast and efficient due to the rotary system. That is, the excavation speed of the trench excavator is 9
At 00 mm, the speed is 400 to 600 m / h, which is 5 to 7.5 times faster and more efficient than the excavation of a power shovel. 4. The amount of excavation per one drilling claw is small by the rotary excavation method, and the discharged soil is small in particles, so that there is no soil space at the time of burial. 5. Excavation trench width is narrow, minimizing the movement of organic components in the topsoil. That is, the excavation trench of the trench excavator is as narrow as 180 mm in width, and the exchange rate between the top soil and the bottom soil is small. 6. Since the trench excavator can be operated with the existing tractor, there is no need to worry about treading pressure, and it is possible to select the number and depth of the culvert according to the field at any time regardless of the date. 7. Farmers can work on their own without relying on subsidies. Also, it is possible to determine the pitch and depth of the culvert by judging whether the penetration of the field is good or not, and to construct the culvert. 8. In addition, it has effects such as being inexpensive to manufacture, easy to assemble because of a small number of parts, and economical.

[Brief description of the drawings]

FIG. 1 is a left side view illustrating a use state.

FIG. 2 is a perspective view seen from the front.

FIG. 3 is a perspective view seen from the rear.

FIG. 4 is a plan view illustrating a use state.

FIG. 5 is a cross-sectional view illustrating a use state as viewed from the rear.

FIG. 6 is an enlarged cross-sectional view of a main part, viewed from the rear, illustrating a use state.

FIG. 7 is an enlarged sectional view taken along line AA.

FIG. 8 is a plan view of the left digging blade.

FIG. 9 is a side view of the left digging blade.

FIG. 10 is a front view of the left digging blade.

FIG. 11 is a perspective view of a left digging blade.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ditcher 2 Frame 3 Ditch 4 Draining part 5 Discharge stopper 6 Front left discharge guide 7 Front right discharge guide 8 Rear left discharge guide 9 Rear right discharge guide

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiharu Nakano 1-32-27, Nishi 20-Jo Kita, Obihiro-shi, Hokkaido Inside Tokachi Heavy Machinery Works, Ltd. No. 27 in the Tokachi Heavy Machinery Works, Ltd. (72) Inventor Tetsuro Shimizu 1-327, Nishi 20-Jo Kita, Obihiro-shi, Hokkaido In the Tokachi Heavy Machinery Works, Ltd.

Claims (2)

[Claims] 1. A trench (3) mounted on a tractor and configured to move forward, a foil (3A) supported in a state of rotating from below to above with respect to the traveling direction, and
The left and right digging blades (3B, 3C) are composed of left and right digging blades (3B, 3C), and the left and right digging blades (3B, 3C) are alternately arranged on the outer periphery of the foil so as to protrude outward at predetermined intervals. Blade (3B
1, 3B2), characterized in that it is configured to form a substantially U-shaped underdrain groove having a substantially U-shaped cross section in a direction orthogonal to the traveling direction. 2. The following frame (2) and a trench (3)
And a discharging part (4), a discharging stopper (5), a front left discharging guide (6), a front right discharging guide (7), a rear left discharging guide (8), and a rear right. A trench excavator comprising a discharge guide (9). Frame (2)
Is a frame body (2A), a three-point link (2B),
It consists of a wheel part (2C) and a frame body (2A)
A main frame (2A1) formed in a vertically long rectangular shape in the front-rear direction, which is the direction in which the frame body advances and retreats;
The main frame is composed of a vertical frame (2A2) that also serves as a chain case vertically connected to the left side of the main frame in a downward direction, and a three-point link (2B) is provided upright on the front side of the main frame. The wheel portion (2C) includes a support frame (2C1) supported on the rear side of the main frame in the left-right direction, and left and right wheels (2C2) mounted on both ends of the support frame such that the support height is adjustable. It is composed of A groove (3A) supported at the lower end of a vertical frame (2A2) also serving as a chain case in a state of being rotated upward from below with respect to the traveling direction of the frame (2); The left and right digging blades (3B, 3C) are composed of left and right digging blades (3B, 3C), and the left and right digging blades (3B, 3C) are alternately arranged on the outer periphery of the foil so as to protrude outward at predetermined intervals. The left grooving blade (3B1) is configured to be warped outward to the left around the foil, and the right grooving blade (3B2) is configured to rightward around the foil. The blades are formed so as to be warped outward, and the blades are formed on the front edges on the respective rotation directions of the foil, and the discharging portion (4) covers the upper portion of the trench (3) from above. Upper surface plate (4) along the upper surface of the cut trench
A) and left and right side plates (4B, 4C) configured to cover the left and right portions in the upper portion of the trench portion (3) from the outside, and further, at a position in front of the left and right side plates (4B, 4C). Means that discharge ports (4B1, 4C1) are provided. The discharging stopper (5) is composed of a stopper plate (5A) suspended from the rear end of the frame body (2A) in a state perpendicular to the direction of travel of the frame body, and has a width (5B) of the stopper plate. Is configured to have a dimension corresponding to the width of the culvert groove (10) formed in the trench (3), and the lower portion (5A1) of the stopper plate is located outside the lower rear portion of the trench (3). Being configured to bend gently along the periphery. The front left unloading guide (6) has an unloading port (4B1) in a state where the guide body (6A) having a substantially C-shaped cross section has the front end (6A1) of the guide body directed in the traveling direction of the frame body. ) And the guide body (6A) is configured so as to face diagonally left rearward. The front right unloading guide (7) includes a guide body (7A) having a substantially C-shaped cross section, and a front end (7A) of the guide body.
1) is connected to the discharge port (4C1) via the discharge duct (4C11) with the 1) oriented in the direction of travel of the frame body, and the entire guide body (7A) is configured to face diagonally right rearward. That Rear left unloading guide (8)
Connects the guide body (8A), which is gently curved in the direction of travel of the frame body, to the upper left side on the back side of the stopper plate (5A) of the discharging stopper (5), and the entire guide body is inclined. Be configured to face left rear. The rear right unloading guide (9) connects the guide body (9A), which is gently curved in the traveling direction of the frame body, to the upper right side on the back side of the stopper plate (5A) of the unloading stopper (5). And the entire guide body is configured to face diagonally right rear.