RU2610815C2 - Forest-fire ground casting machine - Google Patents

Abstract

FIELD: fire safety.

SUBSTANCE: invention relates to devices intended for isolation and extinguishing of creeping fires with ground, as well as to laying of protective metallized strips. Forest-fire ground casting machine comprises frame, suspension mechanism, two spherical disks, cutter-caster, cardan drive, transmission with safety device, guiding housing, reverse gear and safety knife. Frame is articulated in lengthwise-vertical plane, in front part of which there is disk knife for overcoming of obstacles in form of roots. In rear part of frame there is grafting knife with blunt angle of entering into ground.

EFFECT: technical result obtained by invention consists in improvement of efficiency of operation in conditions of grounds with many roots of trees and shrubs and compacted cohesive soils.

1 cl, 3 dwg

Description

The invention relates to devices for localizing and extinguishing ground fires with soil, as well as for laying protective mineralized strips.

Known milling strip layer PF-1, designed to create and prepare wide fire barriers as a measure to prevent the spread of fire, as well as in the direct fight against forest fires. It consists of a housing, a driveshaft, an attachment, a transfer gear, a transmission mechanism, a protective casing, a working body, a safety clutch and a support roller (AS USSR No. 323179, E02F 5/08, E02F 3/18, publ. 14.03. 1972, bull. No. 10).

Also known is a fire dredger, strip stripper, selected as a prototype, which is designed to extinguish ground fires with soil, as well as for laying protective mineralized strips. Including a frame, two spherical disks for forming a shaft from loosened soil, a milling thrower, a drive and a linkage mechanism. The disadvantage of the fire-extinguishing strip stripper is the insufficiently effective extinguishing of the edge of lower fires (RF patent No. 2496540 C1, A62C 27/00, published on October 27, 2013, bull. No. 30).

The technical result achieved by the invention is to create a fire-fighting soil-throwing machine with increased work efficiency in conditions of soils saturated with roots of trees and shrubs and compacted cohesive soils, also capable of performing the function of a strip-laying machine by increasing the efficiency of overcoming obstacles and improving the quality of the work process.

This is achieved by the fact that the design of the fire-fighting soil-throwing machine is mounted on a frame articulated in the longitudinal-vertical plane, separating the milling working element from the mechanism of shaft formation from loose soil. This allows you to introduce several safety knives into the design: a disk mounted on the frame in front of the shaft formation mechanism from loose soil and designed to overcome obstacles in the form of roots, trunks and stumps in the process of spherical disk formation of the shaft from the soil, as well as cuttings with a blunt entry angle into the soil installed in the rear of the frame directly in front of the milling working body. The milling working element available in the construction consists of blades that are pivotally attached to the milling thrower so that in the idle state they occupy a position along the axis of rotation of the milling cutter, and when working under the influence of central forces, they have a radial position. Throwing discs are fixed on the blades with hinges, which allow increasing the volume of ejected soil with reaching its optimal throwing angle, as well as increasing the speed of throwing soil due to additional inertia of the disks.

In FIG. 1 shows a general view of a forest fire soil-throwing machine; in FIG. 2 - milling thrower; in FIG. 3 is a flow chart of a forest fire soil-throwing machine.

The fire-fighting soil-throwing machine consists of an articulated frame 1, a linkage mechanism 2, two spherical disks 3, a milling thrower 4, a cardan drive 5, a transmission with a safety device 6, a guiding casing 7, a gear-reverse 8, a disk safety knife 9 and a safety knife with a blunt angle of entry into the soil 10.

The milling thrower consists of blades 11, the fixing hinges 12 and 15, the milling head 13 and the disc-throwers 14.

Spherical disks 3 and milling throwers 4 are shown on the technological diagram of the working process of a forest fire soil-throwing machine.

Forest fire soil-throwing machine operates as follows. When the tractor power take-off shaft is turned on, the torque from the engine is transmitted to the cardan drive 5 and the reverse gear 8 to the transmission 6 to the milling thrower 4. With the translational movement of the unit, the spherical disks along with the safety knives 9 and 10 are buried in the soil. Spherical disks cut soil layers and move them to the center of passage of the aggregate, forming a soil roll in a loosened state, thereby facilitating the process of cutting soil with a milling cutter, reducing energy costs for milling and increasing the amount of soil supplied to the fire zone. Upon contact with an obstacle, a disk safety knife, together with the front of the articulated frame, rolls through it and again goes into the soil, after which the obstacle overcomes the second safety knife along with the rear of the frame and the work process continues.

For laying fire-resistant mineralized strips as a preliminary preventive measure, the disks are rearranged to operate according to the “collapsed” pattern, the milling thrower is turned off during strip laying.

Thus, the design of the proposed machine can improve the efficiency of the unit while overcoming obstacles, thereby increasing its productivity; increases the amount of soil ejected by milling cutters, thereby increasing the thickness of the fire coating layer.

The throwing distance of the soil is regulated by the angle of installation of the guiding guides and the rotational speed of the rotor of the milling working body.

Claims (1)

Fire-fighting soil-throwing machine, including a frame, a hitch mechanism, two spherical disks, a milling thrower, a cardan drive, a transmission with a safety device, a guiding guide, a reverse gear and a safety knife, characterized in that the frame is articulated in a longitudinally vertical a plane in the front of which a circular knife is installed to overcome obstacles in the form of roots, trunks and stumps, and in the back there is a cutter knife with an obtuse angle of entry into the soil.

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