JPH0270817A - Culvert operation machine - Google Patents

Abstract

PURPOSE:To construct an underdrainage by one process at low cost with high operating efficiency and with saved power by a method in which excavated soil by a deep-excavating rotor is soon mixed with a drain accelerator to embed it into the excavated trench. CONSTITUTION:A working machine 3 with a deep-excavating rotor 7 formed by attaching many excavating claws 6 consisting of vertical and horizontal blades 6a and 6b to the periphery of a large-size flange wheel 5 turning in the direction of upcutting is attached to the back side of a tractor 1. Also, on the upper and back side of the rotor 7, a tank 11 housing a liquid drain accelerator 13 and a drain-accelerating spreader 10 with a spreading nozzle 12 are provided. The excavating depth is regulated by a gauge wheel 9, a deep trench 14 is excavated by the rotor 7 dragged by the tractor 1, and the excavated soil is mixed with the accelerator 13 from the nozzle 12 and embedded into the trench 14.

Description

[Detailed description of the invention] [Industrial application field]

TECHNICAL FIELD The present invention relates to a ditch work machine that forms ditches in rice fields or the like in one step.

[Conventional technology]

Conventionally, the work of forming underground drainage ditches to promote drainage of rice fields, etc. was to first excavate a deep ditch using a partial method IB device, trencher, etc., and then use water suction pipes to collect and drain rice husk, etc. into this deep ditch. The trench above it is backfilled with lumber. In addition, a technique is known in which a drainage accelerator is sprayed on the soil in which deep trenches have been excavated in recent years and the soil is backfilled.

[Problem to be solved by the invention]

Excavating the deep trenches, filling them with collection and drainage materials, and then backfilling them required three work steps, which required a long time and was hard labor. Furthermore, mechanized work methods for spraying drainage promoters on excavated soil and backfilling have not been established and have not been put to practical use. The present invention was conceived in view of the above circumstances, and an object of the present invention is to provide an underground work machine that can complete work in one step using a drainage accelerator.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a horizontal blade portion which is bent at a substantially right angle to one side from the tip of the vertical blade portion and has a rake surface on the outer periphery of a large-diameter flange wheel that rotates in the up-cut direction. It is equipped with a deep tilling rotor equipped with a large number of tilling claws, and a spraying device that sprays a drainage accelerator on the tilled soil that is tilled by the deep tilling rotor and discharged backward. It is characterized in that it is formed by.

[For production]

GA above! As a result, the drainage accelerator is immediately sprayed onto the soil clods that have been excavated by the deep plowing rotor. 'i: The excavated trench is backfilled to form a drainage ditch in one step.

【Example】

Embodiments of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 is a tractor, and a underground work machine 3 is installed at the rear of this tractor 1 via a three-point link hitch 2.
Power is transmitted from the shaft via the rotating shaft 4. The dark-draining work 41!3 is a method in which a cover 8 is provided above the deep-cultivating rotor 7, which is constructed by installing a large number of υ1 claws 6 on the outer periphery of a large-diameter flange wheel 5 that rotates in the up-cut direction. 7, the depth adjustment is performed by a gauge wheel 9. The tilling claw 6 is provided with a horizontal blade aJ (61) bent at a substantially right angle to one side from the tip of the vertical blade portion 6a and having a rake surface. . A drainage accelerator spraying device 10 is provided above and near the rear of the deep plowing rotor 7. This drainage accelerator spraying device 1
0, a spraying nozzle 12 is installed downward from a tank 11 containing a liquid drainage accelerator 13, and this nozzle 12 is used to collect soil clods (El
The arrangement is such that the drainage accelerator I3 is sprayed on the drains f±). The drainage accelerator 13 used here is a polymeric soil conditioner whose trade name is Soiltar, which forms a water-resistant film on the surface of the soil clod and prevents it from collapsing due to water erosion, and is available in liquid and powder forms. There are various types such as granules and gels, and the above tank 1
1 can be changed according to each property. In addition, the power for dispensing the vl water accelerator 13 from the nozzle 12 may be generated by receiving power transmitted to the underground work machine 3, by a motor, or by a natural falling type, in other words, the water discharging accelerator 13 is uniformly distributed. Any structure that discharges I3 may be used. In the underground work machine with such a configuration, the tractor I
A deep trench 14 is excavated by a deep tilling rotor 7 while being towed by a soil plowing rotor 7, and a drainage accelerator 13 is sprayed from a nozzle 12 to the excavated soil mass discharged backward, and the excavated deep trench 14 is backfilled. In this way, the underdrain creation work is performed in step -. A water-resistant film is formed on the surface of the soil clod that has been backfilled in the deep trench 14 by the drainage accelerator 13, allowing the water accumulated on the field surface to permeate into the deep trench, move within the trench, and be discharged outside the field. let The drainage accelerator 13 forms a water-resistant film that maintains water resistance for a considerable period of time and increases the fluidity of water, but it can be easily destroyed by applying external pressure to it.
It has no negative effect on cultivated soil. PH of drainage accelerator 13
is 6.0 to 7.5, and the liquid viscosity is approximately 5 at 25°C.
0,000 cps. In addition, the drainage accelerator is powder 1.
In the case of granules, it is desirable to sprinkle water after forming the underdrain to promote the formation of a water-resistant film.

【Effect of the invention】

As explained above, according to the underground work machine of the present invention,
By up-cutting, a relatively large clod of soil is formed into a deep trench, and the clod is sprayed with 1JI4 water accelerator and backfilled, so the work is completed in one step, making the work extremely efficient. Since it is done by force, it is labor-saving and does not cause fatigue to the worker. In addition, unlike conventional underground drainage work, collection and drainage materials are not required, and therefore construction can be performed at a relatively low cost.

[Brief explanation of the drawing]

FIG. 1 is a side view of the entire underdrain working machine showing one embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the underdrain groove. ■...Tractor, 2...3-point link hitch, 3...
・Underground work machine, 4... Rotating shaft, 5... Flange wheel, 6... Tilling claw, 6a... Vertical blade part, 6b...
・Horizontal blade part, 7... Deep plowing rotor, 8... Cover, 9.
...Gauge wheel, 1091, drainage accelerator spraying device,
11...Tank, 12...Nozzle, 13...Drainage accelerator, 14...Deep groove. same

Claims (1)

[Scope of Claims] A tilling claw is provided on the outer periphery of a large-diameter flange wheel that rotates in the up-cutting direction, with a horizontal blade portion bent at a substantially right angle to one side from the tip of the vertical blade portion and having a rake surface. The system is equipped with a deep-plowing rotor with a large number of installed rotors, and a spraying device that sprays a drainage accelerator on the tilled soil that is tilled by the deep-plowing rotor and released to the rear, thereby forming an underground drainage ditch in one step. A dark-drain work machine characterized by: