JPH04210510A - Digging machine - Google Patents

Abstract

PURPOSE:To constantly keep the level of a machine body and to ensure stable work by making soil gathered from a rotary blade to be dischargeable from the front side of a wheel with a stabilizing plate. CONSTITUTION:The machine body 1 of the digging machine is provided with a pair of wheels 7 rotating by the power transmitted from an engine 3, a rotary blade 9 rotating by the power transmitted from the engine 3 and a digging blade 23 longitudinal oscillating or rotating by the power transmitted from the engine 3. The digging blade 23 is horizontally extended sideways between the wheel 7 and the rotary blade 9. Furthermore, a stabilizing plate 35 for excluding the soil accumulated in front of the wheel is placed in front of the wheel 7 of the side opposite to the digging blade 23. The soil tilled with the rotary blade 9 is accumulated at an end opposite to the groove. Since the lower face of the stabilizing plate 35 has the same height as the groove, the soil is excluded and leveled to prevent the swelling of the ground according to the traveling motion of the machine body 1 to constantly keep the machine body in leveled state.

Description

[Detailed description of the invention]

[00011

[Industrial Application Field] The present invention relates to an excavator for digging up crops buried underground, and in particular, to an excavator that can always maintain parallelism of the machine during excavation work to ensure stable work. related to things. [0002] Generally, an excavator is used to dig up crops buried underground. The configuration of this excavator, which is set in a small-sized management machine such as a tiller, will be explained based on FIGS. 7 to 9. First, the excavator has a body 101 equipped with a prime mover 103, and a pair of wheels 107, 107 which are rotationally driven by the power of the prime mover 103. (o o 03) In addition, in front of the wheels 107 of the aircraft body 101, there is a rotary blade 109 that is rotatably driven by the power of the prime mover 103.
A digging blade 111 is arranged between the wheel 107 and the rotary blade 109 and extends horizontally from the side surface, and this blade undergoes back-and-forth rocking or rotational movement by being transmitted with the power of the prime mover 103. do. [0004] The case where excavation work is performed using such an excavator will be explained with reference to FIG. First, rotary blade 1
Approximately half of the ridge (the shaded area in the figure) is tilled using half of 09 (left side in the figure). This soil is brought to the inside of the machine body 101 (on the right side in the figure) by the lifting force of the rotary blade 109. Next, the digging blade 111 moves underground while being swung or rotated back and forth, so that the crops are dug up and removed together with the soil. [0005] Note that the digging machine employing such a configuration and method is mainly applied to tall crops such as green onions. [0006]

[Problems to be Solved by the Invention] The above conventional configuration has the following problems. That is, since about half of the ridge is cut by the rotary blade, a large amount of soil dug up at this time is moved to the right side in the figure and deposited at the right end of the ridge as shown in FIG. Then, when the rear aircraft moves toward this point, the wheels on the digging blade side are at the same height as the ridges because the ridges have been cut, but the wheels on the opposite side are at the same height as the ridges. As a result, the machine would be tilted and the digging blade would become embedded in the soil, making work extremely difficult and making stable work impossible. [00071 The present invention was made based on these points, and its purpose is to maintain stable work by keeping the machine parallel to the soil that always gathers to one side of the furrow. Our goal is to provide excavators that can. [0008]

[Means for Solving the Problems] In order to achieve the above object, an excavator according to the present invention includes a machine body including a prime mover and a pair of wheels that are rotatably driven by the power of the prime mover;
A rotary blade is placed in front of the wheels of the machine and is driven to rotate by transmitting the power of the prime mover, and a rotary blade is placed between the wheels of the machine and the rotary blade and juts out horizontally from the side and is driven forward and backward by the power of the prime mover being transmitted. A device characterized by comprising a digging blade that performs rocking or rotating motion, and a stabilizing plate that is arranged on the front side of the wheel on the opposite side of the digging blade and removes soil that accumulates in front of the wheel. It is. [0009]

[Operation] That is, the soil tilled by the rotary blade is moved to the right side in the figure and deposited at the right end of the furrow. When the rear aircraft moves toward this point, the wheels on the left side of the diagram are at the same height as the ridges because the ridges have been cut. On the other hand, regarding the wheel on the right side of the figure, a stabilizer plate is attached to the front side of the wheel to remove soil. The bottom of this stabilizer plate is placed at the same height as the ridge, and as the aircraft advances, the rotary blade removes the soil that has gathered and evens it out to prevent it from rising. . [0010] Therefore, since the machine body is always kept parallel, stable excavation work can be performed continuously. [00111

[Embodiments] Examples of the present invention will be described below with reference to FIGS. 1 to 3. First, regarding the configuration of the excavator, this machine is equipped with a main engine 3 for a machine body 1, a handle 5 on the upper part that the worker operates while walking, and the above-mentioned motor 3 on the lower part.
It is equipped with a pair of wheels 7, 7 which are rotationally driven by the power transmitted thereto. [0012] Further, in front of the wheels 7, 7 of the machine body 1, there is provided a rotary blade 9 which is rotatably driven by the power of the prime mover 3 transmitted thereto. That is, a frame 11 is formed as an extension at the front part of the body 1, and a chain case 17 is attached thereto, which is arranged vertically and has shaft parts 13 and 15 at the upper and lower parts. Then, the upper shaft 13 and the output shaft 19 of the prime mover 3
are connected by a belt 21 to transmit rotational force, and the lower shaft 1
A rotary blade 9 attached laterally to the blade 5 is rotationally driven. [0013] Also, the wheels 7, 7 of the machine body 1 and the rotary blade 9
A digging blade 23 is disposed in the middle thereof and extends horizontally from the side surface, and this blade swings back and forth or rotates when the power of the prime mover 3 is transmitted. That is,
A cylindrical body 25 is vertically attached to one side of the frame 11, and a shaft portion 27 is rotatably supported thereon. A digging blade 23 extending horizontally outward is attached to the lower part of the shaft portion 27. Further, an arm 29 is attached to the upper part of the shaft portion 27 in the horizontal direction. On the other hand, the upper shaft portion 13 of the chain case 17 is projected to the side opposite to the connecting portion of the motor 3, the crank 31 is attached to this shaft portion 13, and the crank arm 33 connected thereto is connected to the arm 29. [0014] The crank arm 33 is attached to the arm 29 from a substantially perpendicular direction, converts the reciprocating motion of the crank arm 33 into a rotational motion of the arm 29, and transmits it to the digging blade 23 via the shaft portion 27. On the other hand, a stabilizing plate 35 is attached to the front side of the wheel 7 on the opposite side to the digging blade 23. [o o 15] That is, a horizontal arm 37 is attached to the frame 11 attached to the fuselage 1 outward in the horizontal direction, and a vertical arm 39 is attached downward from the tip of the arm 37, and soil is removed from this tip. A stabilizer plate 35 is attached thereto. The horizontal arm 37 and the vertical arm 39 each have a square pipe attached thereto, and are slidably fitted into the square pipe, and are configured so that their positions can be adjusted using set screws. The lower part of the stabilizer plate 35 is arranged at the same height as the ridge. [00161 The mounting direction of the stabilizer plate 35 is a in Fig. 3.
In addition to the direction in which the soil escapes to the outside as shown in the figure, the direction may be set at right angles to the direction of movement of the aircraft as shown in the figure.
As shown by C in the figure, it may be made to escape inward. The operation will be explained based on the above configuration. First, the prime mover 3 is started, its rotation is transmitted to the wheels 7, and the rotary blade 9 is driven to rotate. [0017] Further, the rotation of the prime mover 3 is transmitted to the shaft portion 13, from which the arm 29 is rotated via the crank 31 and the crank arm 33, and the digging blade 23 is rotated. In this state, the ridges and grooves are run to continuously excavate the crops planted in the ridges. That is, as shown in FIG. 2, first, about half of the ridge is cut into an L shape using half of the rotary blade 9. Next, the digging blade 23 is positioned below the soft-shelled crop and is rotated to dig up the crop along with the soil. At this time, the soil tilled by the rotary blade 9 is moved inside the machine body 1, that is, from the right side to the left side in the figure. A considerable portion of the soil remains and accumulates in the furrows. [001,8] In this state, the wheels 7 at the bottom of the aircraft 1 are moving forward. The wheel 7 on the side of the digging blade 23 has ridges cut to remove soil, and is at the same height as the ridges and grooves. Further, even if soil is accumulated on the opposite side of the wheel 7, the stabilizer plate 35 pushes this soil aside, so that the portion of the wheel 7 on the opposite side becomes at the same height as the ridge. As a result, the aircraft 1 is always kept parallel. [0019] According to this embodiment, the following effects can be achieved. First, since the stabilizing plate 35 is attached to the front side of the wheel 7 on the opposite side from the digging blade 23, the soil that is constantly gathered by the rotary blade 9 can be removed and leveled to prevent it from rising. . Therefore, the machine body is always kept parallel, and stable excavation work can be performed. [00201 Next, a second embodiment will be described with reference to FIG. In this embodiment, the stabilizing plate is of a driven type instead of a fixed type. That is, the arm 41 is taken out from the shaft part 27 of the digging blade 23, and on the other hand, on the front side of the wheel 7 on the opposite side, a stabilizing plate 43 is installed in the direction of travel of the machine body 1 and the direction of the road.
is attached movably, and this and the arm 41 are connected by a connecting member 45, and the rotational movement of the shaft portion 27 is used to stabilize the stabilizer plate 4.
3 can be swung from side to side. [00211 According to this embodiment, the soil coming from the rotary blade can be effectively removed. Next, a third embodiment will be described with reference to FIG. This example is
Take out the arm 47 from the shaft portion 27 of the digging blade 23,
A shaft portion 49 is provided on the front side of the wheel 7 opposite to the digging blade 23, a stabilizing plate 51 is attached to the front side, and an arm 53 is attached to the rear side, and this and the arm 47 are connected with a connecting member 55 to form the shaft portion. 27 is used to rotate the stabilizing plate 51. [00221] Also in the case of this embodiment, the soil coming from the rotary blade can be effectively removed. Next, a fourth embodiment will be described with reference to FIG. This example is
When the digging blade 23 is a swing type, the shaft portion and the stabilizing plate 59 attached to the front side of the wheel 7 on the opposite side to the digging blade 23 in a direction perpendicular to the direction of movement of the machine body 1 are connected by a connecting member 61. The stabilizing plate 59 is made to swing by using the swing motion of the shaft portion 57 when connected. [0023] Also in the case of this embodiment, the soil coming from the rotary blade can be effectively removed. Note that the present invention is not limited to the above embodiments. For example, the shape of the stabilizing plate is not limited to the one shown in the drawings, but may be of any shape as long as it can remove soil gathered from the rotary blade side. [0024] Furthermore, in the case where the stabilizing plate is of a driving type, various forms other than the above-mentioned embodiments can be adopted. [0025] [Effects of the Invention] As described in detail above, according to the excavator according to the present invention, the soil gathered from the rotary blade can be removed from the front side of the wheels by the stabilizer plate, so that the machine body can always be kept parallel. Ensures stable work.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an excavator according to a first embodiment of the present invention.

[Fig. 2] Front view showing the working state of the same as above.

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 7]

[Figure 8]

FIG. 9: A plan view showing how the stabilizing plate is attached. A skeletal plan view showing the second embodiment of the invention. A skeletal plan view showing the third embodiment of the invention. FIG. A skeletal plan view A side view showing a conventional excavator A partially omitted front view showing how the above excavator is used A partially omitted front view showing how the above excavator is used

[Explanation of symbols]

1 Aircraft 3 Prime mover 7 Wheels 9 Rotary blade 23 Digging blade 35 Stabilizer plate

[Figure 5]

Claims (1)

[Claims] Claim 1: A machine body comprising a prime mover and a pair of wheels that are rotatably driven by the power of the prime mover, and a rotary blade disposed in front of the wheels of the machine body and rotatably driven by the power of the prime mover. , a digging blade that is placed horizontally on the side between the wheels of the machine and the rotary blade and swings or rotates back and forth as the power of the prime mover is transmitted; and a wheel on the opposite side of the digging blade. An excavator characterized by comprising: a stabilizer plate disposed on the front side of the wheel to remove soil that accumulates in front of the wheels;