JPS60244203A - Disc rotor type trough digging machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a trench excavator for digging trenches in the soil for the purpose of creating furrows during cultivation, or for irrigation or earthwork purposes.
This invention relates to a disc rotor type trenching machine that uses a disc rotor as a trenching tool.

(b) Conventional technology Conventionally, trenches were dug into the soil using so-called ditchers and trenchers, which are dedicated trench-digging machines.

Among these, for those requiring a well-shaped groove, a conveyor-type, rotor-type, or shovel-type trencher, which is large and has a complicated structure, is used. Note that the shapes and structures of these trenches are all well known in the art, and there is no need to give examples here.

(c) Problems to be Solved by the Invention When trenches are used to dig trenches as described above, well-ordered trenches can be dug quickly, but these trenchers are large and expensive. Combined with this, it has not yet become widespread, and it also has the drawbacks of being difficult to operate and not being able to turn around easily. This not only makes it difficult to dig the desired trench, but also has the drawback that when backfilling is done, using a burrowing machine or the like causes too much soil to scatter, making it difficult to backfill properly.

(d) Means for solving the problem Therefore, the present invention has the following configuration.
To provide a trench excavator that can easily dig a desired trench and also easily backfill the trench.

That is, as an essential feature of the structure of the present invention, there is a working machine which is vertically adjustable and connected by the pitch mechanism of the tractor, and which is also connected for power from the power take-off shaft of the tractor. The transmission case, which extends downward from the work machine, is configured to be movable left and right and fixed.

a power shaft protruding from the side of the lower end of the transmission case;
The present invention provides a disc rotor type trenching machine characterized by having a disc rotor mounted on the power shaft. In addition, the above configuration is a technologically specific embodiment of these configurations.

The disc cloak is symmetrical on both sides of the lower end of the transmission case,
In addition, a configuration in which the device is installed in a way that it spreads out toward the end is added.

(E) By adopting a configuration that exceeds the functions, 2. The shape of a rotary or other working machine that is normally used is slightly changed, and a disc rotor, which is also commonly used for plowing work, is attached to the power shaft. As the tractor moves forward, the disc rotor scoops up the soil in the area where the trench is to be dug, forming just the right trench. At this time, the disc rotor heads in a predetermined direction and does not rotate very quickly, so the soil is scooped out from below where it will become the groove and dropped from above. At this time, the reason why the disc rotor is movable up and down and left and right is to adjust the shape of the groove in this way.

(F) Example One of the examples will be described below, and FIG. 1 is a cross-sectional view thereof. First, a working machine 1 such as a basic Toha 0-tally is used. In other words, in the working machine 1, the main pipe 3.3 from the central gearbox 2 has been rebuilt, but a plate 4 is provided at one end and a transmission case 5 is provided at the other end (side drive A subvibro is also provided between the plate 4 and the transmission case 5.

At the upper and lower ends of the transmission case 5, the transmission shafts 7.
A sprocket 9 and 10 is tightly fitted to the transmission case 5, and the lower transmission shaft 8 of these is made to protrude (inward) from the transmission case 5, and a sprocket 9 and 10 is installed on the outer periphery of the transmission shaft 8, with the tip slanting downward. The powered shaft 11 is dynamically connected to and supported by the transmission shaft 8 described above, and the disc rotor 12 is attached to this.

As a specific example of this, a hub 13 is attached to the side surface of the transmission case 5, the power shaft 11 is pivotally supported by a bearing 14, and internally toothed power coupling bodies 15. It is conceivable that the ball 16 is tightly fitted and the ball 17 is interposed between the two. Note that the power coupling body 16 may be coupled to a clutch body 18 that is integrated with the transmission shaft 8. Further, a flange 19 may be provided at a suitable location on the outer circumference of the power shaft 11, and the disc rotor 12 may be fixed to this flange 19.

Next, a configuration in which the left and right positions of the power shaft 11 can be freely moved and fixed can also be easily considered.

That is, each of the main pipes 3.3 has a slidable double structure, and a hydraulic cylinder 20 is provided in one of the main pipes 3, and its head side 21 is fixed to the outside of the gearbox 2, while the The side 22 is fixed to the plate 4.

This causes the hydraulic cylinder 20 to expand and contract.

The other transmission case 5 moves from side to side via the sub-vibro. 7 At this time, in order to prevent power transmission to the transmission shaft 7 from being obstructed, the transmission shaft 23 extending from the gearbox 2 side and the transmission shaft 7 inside the transmission case 5 are
In addition to making it possible to transmit torque while expanding and contracting by spline fitting 24 and the like, a holder 25° 25 is provided extending from the main pipe 3.3 side to guide and support the sub-vibro. In addition, 26 and 27 in the hydraulic cylinder 20 are oil guide holes that communicate the positive pressure chamber 28 and the back pressure chamber 29, respectively. Furthermore, it is customary to provide hitch structures 30, 30 on both sides of the gearbox 2 for connecting these to the tractor.

FIG. 2 is a part of a rear view of an example in which the disc rotors 12.12 are provided on both sides of the transmission case 5; , it is installed in a way that spreads out towards the end. At this time, it is preferable to tilt the power shaft IL 11 to such an extent that the lower ends of the disc rotors 12, 12 come into contact with each other.

(g) Effects of the invention First, the disc rotor 1 has a slightly curved shape that is inclined downward and moves forward while rotating at an ideal rotation speed.
2 digs up the soil at the location where the groove should be made and drops it to the outside, making it possible to form a groove without the groove collapsing. Since the position of the disc rotor 12.12 at this time can be arbitrarily set to the left, right, top or bottom as described above, the shape of the groove can also be freely selected. In particular, since it can be moved left and right while attached to a tractor, it is also possible to dig a trench right next to a ridge. In this respect, it is very different from conventional trenchers and the like. At this time, if the disc rotors 12, 12 are installed symmetrically on both sides of the transmission case 5 and widening towards the end, the cross-sectional shape of the groove will be trapezoidal and the groove will not collapse.

In addition, when the disc rotor 12.12 moves while rotating, it not only works to push the soil that has just piled up into the groove, but also that its position can be freely changed left and right, and that its rotation speed is not very fast. For this reason, when backfilling a trench, not much soil is scattered, making this work easy and clean.

Furthermore, the structure of this trench excavator itself does not require a rotary cover or tilling shaft, so it is compact and compact.
It can be expected to have the advantage of being able to be manufactured at low cost.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a trench excavator according to the present invention, and FIG. 2 is a partial rear view showing another embodiment. (Symbol) 1. Work equipment 11. Power shaft 5. Transmission case 12. Disc rotor Patent applicant Seirei Kogyo Co., Ltd. Agent Patent attorney Yoshio Itano

Claims (1)

[Scope of Claims] 1) A working machine (1) which is connected to the tractor so that it can be adjusted up and down by a hitch mechanism, and which is also connected monetarily from the power output shaft of the tractor. (1
) The transmission case (5) is configured to be movable left and right and fixed freely, and the transmission case (5) is provided to extend downward from the transmission case (5).
A disc rotor type trench excavator characterized by having a power shaft (11) projecting from the side at the lower end and having a disc rotor (12) attached to the power shaft (11). 2) A disc rotor type groove according to claim 1), characterized in that the disc rotor (12) is mounted symmetrically on both sides of the lower end of the transmission case (5) and widens towards the end. Excavator.